KR102795696B1 - Control method of bed - Google Patents

Abstract

A method for controlling a bed according to an embodiment of the present invention may include the steps of: supplying power to the bed, turning on the strength adjustment module, the pressure detection sheet, and the main control unit; selecting an operation mode for adjusting the cushion strength; transmitting a pressure detection command from the main control unit to the pressure detection sheet, and scanning the body pressure of a user lying on the pressure detection sheet; transmitting the scanned body pressure data to the main control unit, and identifying a pressure concentration area; selecting one or more strength adjustment modules located in the pressure concentration area; transmitting a cushion strength adjustment command from the main control unit to the selected one or more strength adjustment modules; and operating a drive motor of the selected strength adjustment module according to the transmitted cushion strength adjustment command, so as to adjust the strength of the cushion member.

Description

{Control method of bed}

The present invention relates to a method for controlling a bed.

Mattresses that generally serve as cushions for a bed include spring mattresses, sponge mattresses, and memory foam mattresses, with the most widely used being spring mattresses.

Conventional spring mattresses have a structure in which coil springs are intricately intertwined to form a single cushion member, or a plurality of spring modules are arranged in a pocket shape.

Mattresses with intricately intertwined coil springs have the disadvantage that when a user lies down, the vibration generated by the springs' elasticity is directly transmitted to the person next to them, causing discomfort to the person next to them.

In addition, mattresses that include pocket-shaped spring modules have the advantage of relatively reducing the amount of vibration transmitted to the person next to you, but these conventional mattresses still have the problem of not being able to adjust the cushion strength.

The desired cushion strength of a mattress varies depending on the gender, age, and physical condition of the user using the bed, but conventional mattresses have the problem that the user cannot freely adjust the cushion strength.

To solve these problems, there have been various studies and efforts to implement a bed that can set the cushion strength of the mattress differently depending on the position where the user lies or the point where the user's body part touches it.

The coil-in-coil spring disclosed in prior art 1 has a structure in which an inner spring with a weak elastic strength and an outer spring with a large elastic strength and a long spring are accommodated in a pocket.

Since the length and elastic strength of the inner and outer springs are set differently, the cushioning strength varies depending on the size of the load applied to the upper surface of the coil-in-coil.

Therefore, when a user lies down on a mattress, the amount of spring compression varies depending on the body part that is subject to different loads.

However, in the case of prior art 1, due to the structural characteristics, the amount of spring contraction is the same at the point where the same vertical load is applied. Therefore, there still exists a problem that the cushion strength of the mattress cannot be adjusted under conditions where the vertical load is constant, for example, under the same conditions of the user.

The support element disclosed in prior art 2 includes a base plate and a support plate rotatably connected to the base plate, and the elastic strength of the support element is adjusted by rotation of the support plate.

In the case of prior art 2, the cushion strength of the mattress can be freely set according to the user's choice, and has the advantage of being able to adjust the cushion strength differently depending on the part of the user's body that touches it.

However, as can be seen from the contents disclosed in FIGS. 3B to 6B, prior art 2 has a disadvantage in that the variable range of elastic strength of the support element is very narrow.

In addition, since the upper support plate must be rotated directly by hand, there is a disadvantage in that the cushion strength of multiple support plates cannot be adjusted at once using a driving means.

In addition, in the case of prior art 1 and 2, the surface of the mattress that the user's skin directly touches may be soaked with the user's sweat, and in the summer when humidity is high, not only the mattress but also the sheets may become damp, causing discomfort to the user. In addition, if the mattress is kept wet for a long time, there is a very high possibility that the inside of the mattress may become contaminated with mold or mites.

To improve these problems, prior art 3 proposes a blower device that supplies hot or cold air to a mattress.

However, in the case of prior art 3, in a bed structure in which a part of the mattress is tilted, there is still a disadvantage in that hot or cold air supplied from the blower is not smoothly supplied to the mattress.

Prior Art 1: US7908693B (April 14, 2010) Prior Art 2: US9119478B (September 1, 2015) Prior Art 3: US8402579B (March 26, 2013)

A bed control method according to the present invention is proposed to improve the problems of conventional beds as described above.

According to an embodiment of the present invention for achieving the above object, a method for controlling a bed comprises: a topper that comes into contact with a user's body; a plurality of cushion members provided on a lower side of the topper; a plurality of strength adjustment modules including a drive motor that generates a driving force for adjusting the cushion strength of the plurality of cushion members; and a gear assembly that transmits a rotational force generated from the drive motor to the cushion members; a fibrous body pressure detection sheet that is provided on an upper surface of the topper and detects the body pressure of a lying user; and a control box having a main control unit that controls the operation of the body pressure detection sheet and the strength adjustment module, wherein the method comprises the steps of: supplying power to the bed, turning on the strength adjustment module, the body pressure detection sheet, and the main control unit; And a step of selecting an operation mode for adjusting the cushion strength of the cushion members by touching an operation button displayed on a display unit of a body pressure controller that is wirelessly connected to the main control unit, wherein the operation mode includes an automatic mode and a manual mode, and when the automatic mode is selected by the user, a body pressure detection command is transmitted from the main control unit to the body pressure detection sheet, and the body pressure of each body area of the user lying on the body pressure detection sheet is scanned; a step of transmitting the scanned body pressure data to the main control unit, and a body pressure concentration area is identified; a step of selecting one or more intensity control modules located in the body pressure concentration area; a step of transmitting a cushion strength control command from the main control unit to the selected one or more intensity control modules; a step of completing body pressure control in the body pressure concentration area through intensity control of the cushion members, wherein a drive motor of the selected intensity control module is operated according to the transmitted cushion strength control command. And a step of outputting a message notifying the completion of body pressure adjustment and a manual mode button on the display of the body pressure regulator; and when the manual mode is selected by the user from the beginning while the bed is powered on, the step of scanning the body pressure by body area from the body pressure scan step is performed in the same manner as the automatic mode, and when the manual mode is selected from the beginning and the body pressure scan by body area is completed, or when the automatic mode is selected and the body pressure adjustment in the body pressure concentration area is completed and the manual mode button is selected for changing the current cushion strength, a manual intensity adjustment module process by the user is performed, and the manual intensity adjustment module process includes the steps of outputting an adjustment area menu screen on the display of the body pressure regulator, in which a body pressure distribution image divided into a plurality of areas, a control area search screen on which a cursor for searching for a cushion intensity adjustment area is displayed, an control area change button for moving the position of the cursor, a cushion intensity change button for changing the cushion strength, and a completion button are displayed; a step in which the cursor moves upward or downward from the edge of the body pressure distribution image by touching the control area change button; The method further comprises: a step of touching the cushion intensity change button while the cursor is located at a point determined to be a pressure concentration area; a step of adjusting the cushion intensity of the intensity control module located at the pressure concentration area by touching the cushion intensity change button.

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According to a bed control method according to an embodiment of the present invention, the following effects are achieved.

First, since the height of the inner spring provided on the inside of the cushion member can be adjusted, there is an advantage in that the user can easily set the desired level of cushion strength.

Second, there is an advantage in that the cushion strength can be linearly adjusted by adjusting the height of the inner spring.

Third, by connecting a driving means to a transmission gear provided at the bottom of the cushion member, there is an advantage in that the cushion strength of a plurality of cushion members can be adjusted to the same level at once.

Fourth, the strength control unit includes a plurality of strength control modules, one strength control module includes a plurality of cushion members, the plurality of cushion members are arranged in the width direction of the bed, and the plurality of cushion modules are arranged in the length direction of the bed.

Therefore, users can adjust the cushion strength of the mattress differently for each body part, which has the advantage of providing an optimal sleeping condition.

Fifth, since part of the bed can be tilted by operating the motion control unit, it has the advantage of providing the user with an optimal sleeping condition.

Sixth, there is an advantage in that only the topper that makes up the bed can be easily separated and replaced, and it is easy to replace or repair the strength adjustment module while the topper is separated.

Seventh, since the bottom of the bed is equipped with a drying module, it has the effect of keeping the topper dry and preventing mold from forming on the topper. In addition, since the topper can always be kept at a certain level of dryness or higher, the user's skin will feel comfortable when it touches the topper, which helps the user get a good night's sleep.

Eighth, the fiber-type body pressure detection sensor has the effect of quickly identifying the area where body pressure is concentrated when the user lies down on the bed.

Ninth, based on the body pressure value data detected by the body pressure detection sensor, the cushion strength in the area where body pressure is concentrated can be appropriately adjusted through automatic or manual operation of the strength control module, thereby providing an advantage in providing an optimal lifespan.

FIG. 1 is a perspective view of a bed according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a bed according to the first embodiment of the present invention showing the upper part being erected at an angle.
Figure 3 is an exploded perspective view of a bed according to the first embodiment of the present invention.
FIG. 4 is a longitudinal cross-sectional view of a bed according to the first embodiment of the present invention taken along line 4-4 of FIG. 1.
Figure 5 is a bottom view of a topper constituting a bed according to the first embodiment of the present invention.
Figure 6 is a cross-sectional view of the topper cut along line 6-6 of Figure 3.
FIG. 7 is a perspective view from above of a motion control unit constituting a bed according to the first embodiment of the present invention.
Figure 8 is a perspective view of the motion control unit viewed from below.
Figure 9 is a side view of the motion control unit in a horizontal position.
Figure 10 is a side view of the motion control unit with the upper body frame and thigh frame tilted upward.
FIG. 11 is a cross-sectional side view of the motion control unit taken along line 11-11 of FIG. 7 in the state of FIG. 10.
FIG. 12 is a drawing showing the coupling relationship between a strength adjustment module and a motion control unit constituting a bed according to the first embodiment of the present invention.
FIG. 13 is a perspective view of an interrupter constituting a bed according to the first embodiment of the present invention.
Figure 14 is a front perspective view of a cushion member according to one embodiment of the present invention.
Fig. 15 is a bottom perspective view of the cushion member.
Figure 16 is an exploded perspective view of the cushion member.
Figure 17 is a bottom perspective view of an upper cover constituting a cushion member according to an embodiment of the present invention.
Fig. 18 is a perspective view of an inner case constituting a cushion member according to an embodiment of the present invention.
FIG. 19 is a perspective view of an outer case constituting a cushion member according to an embodiment of the present invention.
FIG. 20 is a plan view showing the combined state of an outer case, an inner case, and a lead screw constituting a cushion member according to an embodiment of the present invention.
FIG. 21 is a longitudinal cross-sectional view of a cushion member according to an embodiment of the present invention cut along line 21-21 of FIG. 14 in a state where no external force is applied.
FIG. 22 is a longitudinal cross-sectional view of a cushion member according to an embodiment of the present invention cut along line 21-21 of FIG. 14 under an external force.
FIG. 23 is a side perspective view of a strength control module according to one embodiment of the present invention.
Figure 24 is a bottom perspective view of the strength control module.
Figure 25 is an exploded perspective view of a strength control module according to an embodiment of the present invention.
Figure 26 is an exploded perspective view showing the bottom structure of the module case constituting the strength module.
FIG. 27 is a cut-away perspective view of a strength control module according to an embodiment of the present invention taken along line 27-27 of FIG. 23.
FIG. 28 is a bottom view of a strength control module according to an embodiment of the present invention with the bottom case removed.
FIG. 29 is a bottom perspective view of a bed according to the first embodiment of the present invention equipped with a drying module.
Fig. 30 is a longitudinal cross-sectional view of the bed taken along line 30-30 of Fig. 29.
FIG. 31 is a perspective view of a drying module provided in a bed according to the first embodiment of the present invention.
Fig. 32 is a perspective view of a bed according to a second embodiment of the present invention.
Figure 33 is a longitudinal cross-sectional view of the bed taken along line 33-33 of Figure 32.
Figure 34 is an exploded perspective view of a bed according to a second embodiment of the present invention.
Figure 35 is a bottom perspective view of the strength control unit and motion control unit combination.
FIG. 36 is a perspective view from above of a combination of a motion control unit and a guard frame according to a second embodiment of the present invention.
Fig. 37 is a perspective view from below of a combination of a motion control unit and a guard frame according to the second embodiment.
FIG. 38 is a cross-sectional view of the motion generator taken along line 38-38 of FIG. 37.
FIG. 39 is a cross-sectional view of the motion generator taken along line 39-39 of FIG. 38.
Fig. 40 is a perspective view showing the operation of a motion control unit according to the second embodiment of the present invention.
FIG. 41 is a cross-sectional view of the motion control unit taken along line 41-41 of FIG. 40.
FIG. 42 is a partially cutaway perspective view enlarged to show a strength control unit coupled to a motion control unit according to a second embodiment of the present invention.
Figure 43 is a perspective view of a drying module according to a second embodiment of the present invention.
FIG. 44 is a longitudinal cross-sectional view of a bed taken along line 44-44 of FIG. 43 with a topper placed on the upper side of the drying module.
Fig. 45 is a perspective view from above of a bed according to a third embodiment of the present invention.
Fig. 46 is a perspective view of a bed according to a third embodiment of the present invention as viewed from below.
Fig. 47 is an exploded perspective view of a bed according to a third embodiment of the present invention.
Fig. 48 is a longitudinal cross-sectional view of a mattress set taken along line 48-48 of Fig. 45.
Fig. 49 is a perspective view of a module mounting plate constituting a mattress set of a bed according to a third embodiment of the present invention.
FIG. 50 is a partial cross-sectional view of a module mounting plate taken along line 50-50 of FIG. 49.
FIG. 51 is a partial cross-sectional view of the module mounting plate taken along line 50-50 of FIG. 49 in a tilted state by the motion control unit.
Figure 52 is an exploded perspective view of a mattress set and a drying module constituting a bed according to a third embodiment of the present invention.
FIG. 53 is a longitudinal cross-sectional view of a bed according to a third embodiment of the present invention taken along line 53-53 of FIG. 46.
Figure 54 is a perspective view of the motion control unit showing the upper body frame in a tilted state.
FIG. 55 is a perspective view of a strength control module according to an embodiment of the present invention having a buffer plate coupled to the upper surface of a cushion member.
Figure 56 is a bottom perspective view of the buffer plate.
FIG. 57 is a drawing showing a point where the body weight of a user is concentrated when lying upright on a body pressure sensing sheet provided on a bed according to an embodiment of the present invention.
Figure 58 is a drawing showing the point where the user's body weight is concentrated when lying on his/her side on the pressure sensing sheet.
Figure 59 is a flow chart showing a method for controlling the cushion strength of a bed according to the first embodiment of the present invention.
Figures 60 to 63 are display screens of a pressure regulator shown in the process of performing a method for controlling the cushion strength of a bed according to the first embodiment of the present invention.
Figure 64 is a flowchart showing a method for controlling the cushion strength of a bed according to a second embodiment of the present invention.
FIGS. 65 and 66 are display screens of a pressure regulator shown in the process of performing a method for controlling the cushion strength of a bed according to the second embodiment of the present invention.

Hereinafter, a cushion strength control unit according to an embodiment of the present invention and a bed equipped with the same will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a bed according to a first embodiment of the present invention, FIG. 2 is a perspective view of a bed according to the first embodiment of the present invention showing a state in which the upper part is erected obliquely, FIG. 3 is an exploded perspective view of a bed according to the first embodiment of the present invention, and FIG. 4 is a longitudinal cross-sectional view of the bed according to the first embodiment of the present invention taken along line 4-4 of FIG. 1.

Referring to FIGS. 1 to 4, a bed (10) according to an embodiment of the present invention may include a topper (12) on which a user's body is placed, a strength control unit (20) placed below the topper (12) and including a plurality of strength control modules, an interrupter (40) interposed between the plurality of strength control modules, a motion control unit (30) placed below the strength control unit (20), a safety guard (13) surrounding the edges of the strength control unit (20) and the motion control unit (30), and a bed cover (or cover sheet) (11) covering the topper (12) and the safety guard (13).

Hereinafter, the term “strength” or “cushion strength” may be understood to mean the degree of softness or hardness of the bed.

Depending on the user's age, taste, or physical condition, the firmness of the bed preferred by the user may vary. For this reason, the bed according to the embodiment of the present invention is characterized in that the user can control the softness of the bed by manipulating the firmness control unit (20).

The above bed cover (11) can be formed in a size that completely covers the upper and side surfaces of the bed (10), and can also be formed in a size that covers the bottom of the bed (10) depending on design conditions.

In addition, the bed cover (11) can be made of an elastic material so that it can always be kept in a taut state. Then, when the bed is tilted or bent according to the operation of the motion control unit (30), it stretches, and when the motion control unit (30) returns to a flat state, it contracts back to its original state.

The above topper (12) is the part where the user's body is placed and may include a memory foam mattress that sinks under the user's weight and then returns to its original state when the load is removed.

It should be noted that in the description of the present invention, the term ‘mattress’ may mean only the topper (12) or may mean a member including the topper (12) and the strength control unit (20).

The above strength control unit (20) may be defined as a collection of a plurality of strength control modules arranged from the top to the bottom of the bed (10). Each of the plurality of strength control modules may include a module case (21) and a plurality of cushion members (C) arranged inside the module case (21).

The interrupter (40) interposed between adjacent strength control modules is placed at the hinge point of the motion control unit (30). The spacing between the adjacent strength control modules in the area where the hinge point is placed is wider than the spacing between the adjacent strength control modules in other areas. This is to minimize interference between the strength control modules adjacent to the hinge point due to the operation of the motion control unit (30).

Since the user's body part may feel uncomfortable while lying down if it is placed in the gap between adjacent strength adjustment modules formed at the hinge point, the interrupter (40) is placed in the gap.

The above-mentioned safe guard (13) is provided to prevent the user's legs or knees approaching the bed (10) from hitting the motion control unit (20) and causing pain or injury. Accordingly, the above-mentioned safe guard (13) can be formed of a soft material such as sponge or memory foam.

FIG. 5 is a bottom view of a topper constituting a bed equipped with a strength control unit according to the first embodiment of the present invention, and FIG. 6 is a longitudinal cross-sectional view of the topper taken along line 6-6 of FIG. 3.

Referring to FIGS. 5 and 6, the bottom surface of the topper (12) contacts the upper surface of the cushion member (C) constituting the strength control unit (20).

In detail, the topper (12) may include a hexahedral topper body (121) having a predetermined thickness.

In addition, as another example, a cushion member (C) and a support sleeve (122) for supporting the upper part of the interrupter (40) may be formed protruding on the lower surface of the topper body (121).

The above-mentioned support sleeve (122) may include a cushion member support sleeve formed in a cylindrical shape and an interrupter support sleeve extended in a rectangular cross-sectional shape. In addition, the inner space of the cushion member support sleeve may be defined as a cushion member receiving groove (123), and the inner space of the interrupter support sleeve may be defined as an interrupter receiving groove (124).

Since the upper part of the cushion member (C) and the interrupter (40) is fixed by the support sleeve (122), even if the vertical state of the cushion member (C) and the interrupter (40) collapses during the operation of the motion control unit (30), the bottom surface of the topper (12) can maintain a state of being connected to the strength adjustment module and the interrupter (40) as much as possible.

FIG. 7 is a perspective view from above of a motion control unit constituting a bed according to the first embodiment of the present invention, and FIG. 8 is a perspective view from below of the motion control unit.

Referring to FIGS. 7 and 8, a motion control unit (30) constituting a bed (10) according to an embodiment of the present invention may include a base frame (35) placed on an installation surface, a mounting frame on which the strength control unit (20) is placed on an upper surface, and a support frame (36) connecting the base frame (35) and the mounting frame.

In detail, the above-mentioned settling frame may largely include four frames.

Specifically, the four frames constituting the above-described settling frame may include a torso frame (31), a hip frame (32), a thigh frame (33), and a calf frame (34).

The upper body frame (31) may be defined as a frame that supports the user's upper body, and the hip frame (32) may be defined as a frame that supports the user's hip area.

The thigh frame (33) above may be defined as a frame that supports the thigh portion of the user, and the calf frame (34) may be defined as a frame that supports the lower thigh portion of the user's legs.

The front end of the upper body frame (31) may be defined as the front end of the motion control unit (30), and the rear end of the calf frame (34) may be defined as the rear end of the motion control unit (30).

The rear end of the upper body frame (31) can be tilted or rotatably connected to the front end of the hip frame (32), and the front end of the thigh frame (33) can be tilted or rotatably connected to the rear end of the hip frame (32).

The rear end of the thigh frame (33) and the front end of the calf frame (34) can be connected to enable relative rotation.

The upper body frame (31) may include an outer frame (311), a plurality of cushion member mounting plates (312), and a plurality of connecting bars (313).

The above outer frame (311) is formed in a square shape and can define the front end, rear end, and both side ends of the upper body frame (31).

In addition, the plurality of connecting bars (313) connect the front and rear ends of the outer frame (311) and can be arranged spaced apart in the left and right directions of the outer frame (311).

The above-mentioned plurality of cushion member fixing plates (312) connect the left and right ends of the outer frame (311) and can be arranged spaced apart in the front-back direction of the outer frame (311). Accordingly, the above-mentioned plurality of connecting bars (313) and the above-mentioned plurality of cushion member fixing plates (312) can be understood as having a structure in which they are arranged in directions orthogonal to each other.

Meanwhile, at the left and right edges of the front end of the outer frame (311), a pair of vertical bars (314) may extend in the vertical direction, and the pair of vertical bars (314) may be connected by a horizontal bar (315). In addition, an inclined bar (316) may extend from the lower end of each of the pair of vertical bars (314) to the rear end of the outer frame (311).

The above pair of vertical bars (314) may be understood as a member that performs the function of transmitting a vertical load applied to the outer frame (311) to the installation surface, thereby preventing the outer frame (311) from bending due to the vertical load. The vertical load may be understood as a load that combines the user's upper body load, the load of the strength control module, and a portion of the load of the topper.

The above horizontal bar (315) can be understood as a member that performs the function of preventing the lower portions of the pair of vertical bars (314) from bending in a direction away from or closer to each other due to the vertical load.

The above-mentioned inclined bar (316) can be understood as a member that performs the function of preventing the pair of vertical bars (314) from being bent forward or backward of the motion control unit (30) due to the vertical load.

The frame portion (or bar) defining the rear end of the outer frame (311) functions as a hinge axis (or center of rotation) of the outer frame (311). Accordingly, the rear end of the outer frame (311), which becomes the center of rotation of the upper body frame (31), can be defined as an upper hinge axis.

Meanwhile, an upper actuator (37) is mounted on the lower surface of the outer frame (311) to rotate the upper body frame (311) around the hinge axis. The upper actuator (37) may include a driving unit (371) and a plunger (372) that is extended or contracted by the driving unit (371).

When the plunger (372) extends forward, the upper body frame (31) rotates upward, and when it contracts backward, the upper body frame (31) rotates downward.

The lower surface of the above-mentioned settling frame is provided with a fastening flange for fixing the upper actuator (37).

The above-mentioned fastening flange may include a plunger fastening flange (317) to which the front end of the upper actuator (37) is rotatably connected, and a drive fastening flange (318) to which the rear end of the upper actuator (37) is rotatably connected.

The front end of the plunger (372) can be rotatably connected to the plunger fastening flange (317).

In addition, the plunger fastening flange (317) may be formed on the lower surface of the upper body frame (31), and the drive unit fastening flange (318) may be formed on the lower surface of the hip frame (32).

In addition, the plunger fastening flange (317) may be formed at a higher position than the drive fastening flange (317). In other words, a horizontal line (or horizontal plane) passing through the plunger fastening flange (317) and a horizontal line (or horizontal plane) passing through the drive fastening flange (318) may be spaced apart from each other by a predetermined distance in the vertical direction.

By this structure, when the fixing frame is placed horizontally, the plunger (372) of the upper actuator (37) is placed at an angle. Therefore, when the plunger (372) is extended, the upper body frame (31) can rotate upward. If the plunger (372) is extended in a horizontal state, the upper body frame (31) may not rotate smoothly upward.

Meanwhile, the hip frame (32), like the upper body frame (31), may include an outer frame (321), one or more cushion member mounting plates (322), and a plurality of connecting bars (323).

The above outer frame (321) can be formed into a rectangular shape by four bars. A plurality of upper hinge axis brackets (324) are spaced apart in the left and right directions on the lower surface of the front end of the above outer frame (321). In addition, the rear end of the upper body frame (31) is installed by penetrating the plurality of upper hinge axis brackets (324), so that the rear end of the upper body frame (31) is rotatably connected to the front end of the hip frame (32).

In addition, the hip frame (32) may further include a load support bar (328) connecting the front end bottom surface and the rear end bottom surface of the outer frame (321). In detail, the drive unit fastening flange (318) is connected to the front end of the load support bar (328).

The above load support bar (328) can prevent the driving unit fastening flange (318) from being pushed backward by the vertical load transmitted to the upper actuator (37) when the upper body frame (31) is tilted upward.

A lower actuator (38) is mounted on the lower side of the hip frame (32) so that the rear end of the thigh frame (33) can be tilted in the up-and-down direction. The lower actuator (38), like the upper actuator (37), can include a driving unit (381) and a plunger (382).

A drive unit fastening flange (326) to which the drive unit (381) of the lower actuator (38) is rotatably connected is formed on the front end bottom surface of the hip frame (32). In addition, a plunger fastening flange (327) to which the end of the plunger (382) of the lower actuator (38) is rotatably connected is formed on the front end bottom surface of the thigh frame (33).

And, the drive unit fastening flange (326) is located at a higher point than the plunger fastening flange (327). Therefore, the upper actuator (37) can be described as being mounted on the bottom surface of the mounting frame with the plunger (372) inclined upward, and the lower actuator (38) can be described as being mounted on the bottom surface of the mounting frame with the plunger (382) inclined downward.

Meanwhile, a support frame (36) is extended from the bottom surface of the hip frame (32), and the lower end of the support frame (36) is connected to the base frame (35).

In detail, the base frame (35) is formed in an approximately rectangular shape and may have rounded corners, but is not necessarily limited thereto.

The above support frame (36) includes a pair of frames extending downward from points spaced apart in the left and right directions from the center of the hip frame (32). The pair of frames can be defined as a left support frame and a right support frame.

The lower part of the left support frame is connected to the left side of the base frame (35), and the lower part of the right support frame is connected to the right side of the base frame (35), so that the support frame (36) and the base frame (35) are formed as one body.

In addition, the bottom surface of the support frame (36) passes through the same horizontal plane as the bottom surface of the base frame (35). Therefore, when the motion control unit (30) is placed on the installation surface, the motion control unit (30) can be prevented from shaking in the left-right direction.

Of course, the above support frame (36) may be further provided on the lower surface of the hip frame (32) corresponding to the inner space of the base frame (35).

And, as illustrated, frames having the same shape as the support frame (36) may be provided at the left edge and right edge of the hip frame (32), respectively. If support frames having the same shape as the support frame (36) are further provided at the left edge and right edge of the hip frame (32), the phenomenon of the left end and the right end of the hip frame (32) being bent and sagging downward due to the vertical load applied from the topper (12) and the strength control unit (20) can be prevented.

It goes without saying that support frames of the same or similar shape as the above support frame (36) may also be formed on the left and right side ends of the thigh frame (33) and the left and right side ends of the calf frame (34), as illustrated.

In addition, it is to be noted that the support structure defined by the vertical bar (314) and horizontal bar (315) formed at the front end of the upper body frame (31) can be formed in the same manner at the rear end of the calf frame (34).

A plurality of lower hinge axis brackets (325) can be formed on the lower surface of the front end of the hip frame (32).

The above-described plurality of lower hinge axis brackets (325), like the above-described plurality of upper hinge axis brackets (324), can be arranged spaced apart in the left-right direction of the hip frame (32).

And, a frame (or bar) defining the front end of the thigh frame (33) passes through the lower hinge axis bracket (325), so that the front end of the thigh frame (33) is rotatably connected to the rear end of the hip frame (32).

The front end of the thigh frame (33), which becomes the center of rotation of the thigh frame (33), can be defined as the lower hinge axis.

Meanwhile, the thigh frame (33) may be formed in a shape substantially symmetrical to the hip frame (32), but is not necessarily limited thereto.

The thigh frame (33) may, like the hip frame (32), include a rectangular outer frame (331), a plurality of connecting bars (333) connecting the front and rear ends of the outer frame (331), and a cushion member mounting plate (332) whose ends are joined to the upper surfaces of the left and right ends of the outer frame (331). One or more cushion member mounting plates (332) may be provided.

In addition, as described above, the front end bottom surface of the thigh frame (33) is provided with the plunger fastening flange (327), and the end of the plunger (382) of the lower actuator (38) is rotatably connected to the plunger fastening flange (327).

A plurality of connecting flanges (334) may be extended from the rear end of the thigh frame (33). The plurality of connecting flanges (334) may be formed one each on the left and right sides of the rear end of the thigh frame (33), but it is not excluded that three or more are formed.

The above calf frame (34), like the upper body frame (31), may include an outer frame (341), a cushion member mounting plate (342), and a connecting bar (343).

The above outer frame (341) may be formed in an approximately square shape, and one or more cushion member mounting plates (342) may be provided.

The above-described plurality of cushion-less mounting plates (342) may be placed on the upper surfaces of the left and right ends of the outer frame (341), but may be spaced apart in the front-back direction of the calf frame (34).

The above connecting bar (343) may also be provided in one or more, and the multiple connecting bars (343) may connect the front and rear ends of the outer frame (341), but may be arranged spaced apart in the left and right directions of the calf frame (34).

In addition, a connecting flange (344) having the same shape as the connecting flange (334) formed at the rear end of the thigh frame (33) may be formed at the front end of the calf frame (34). The connecting flange (334) of the thigh frame (33) and the connecting flange (344) of the calf frame (34) are connected to enable relative rotation.

FIG. 9 is a side view of the motion control unit in a horizontal state, FIG. 10 is a side view of the motion control unit in a state where the upper body frame and the thigh frame are tilted upward, and FIG. 11 is a cross-sectional side view of the motion control unit taken along line 11-11 of FIG. 7 in the state of FIG. 10.

Referring to FIG. 9, all frames defining the settling frame of the motion control unit (30), that is, the upper body frame (31), hip frame (32), thigh frame (33), and calf frame (34), can be defined as being horizontal as the default state.

Referring to FIG. 10, the upper body frame (31) and the thigh frame (33) can be tilted upward at a predetermined angle by the operation of the upper actuator (37) and the lower actuator (38).

Figure 10 shows the plunger (372) of the upper actuator (37) extended in a state where the upper body frame (31) is tilted upward, and Figure 11 shows the plunger (382) of the lower actuator (38) extended in a state where the thigh frame (33) is tilted upward.

The above hip frame (32) is always maintained in a horizontal state, and the load (or rotational moment) transferred from the upper body frame (31) to the upper actuator (37) and the load (or rotational moment) transferred from the thigh frame (33) to the lower actuator (38) are both transferred to the hip frame (32).

The two symmetrical rotational moments transmitted to the hip frame (32) are canceled out by the base frame (35). Therefore, the phenomenon in which the front end (the end toward the upper body frame) or the rear end (the end toward the thigh frame) of the base frame (35) is lifted from the installation surface does not occur due to the rotational moments. In order to prevent the bed (10) from falling over toward the front end or the rear end by lifting the front end or the rear end of the base frame (35) due to the rotational moments, it is preferable that the length of the base frame (35) be formed sufficiently long.

FIG. 12 is a drawing showing the coupling relationship between a strength adjustment module and a motion control unit constituting a bed according to the first embodiment of the present invention.

Referring to FIG. 12, the intensity control unit (20) according to an embodiment of the present invention can be defined as a collection of a plurality of intensity control modules.

In detail, each of the above-described multiple strength control modules may include a module case (21) and a plurality of cushion members (C) mounted on the module case (21).

The above module case (21) is placed on the cushion member mounting plate (312, 322, 332, 342) provided on the upper surface of the motion control unit (30). Specifically, the cushion member mounting plate (312, 322, 332, 342) can be located at the center of the bottom of the module case (21).

And, the strength adjustment module can be fixed to the upper surface of the motion control unit (30) by a fastening member (S) inserted into the cushion member fixing plate ((312, 322, 332, 342)) penetrating the bottom of the module case (21).

A through hole through which the fastening member (S) passes is formed in the center of the bottom of both side ends of the module case (21). In addition, a fastening hole (332a) through which the fastening member (S) passes is formed in the left and right edges of the cushion member fixing plates (312, 322, 332, 342), respectively, so that both ends of the module case (21) are fixed to the cushion member fixing plates (332).

In addition to this fastening structure, an adhesive member in the form of a double-sided tape may be provided on the upper surface of the cushion member mounting plate so that the bottom of the module case (21) is fixed to the cushion member mounting plate.

FIG. 13 is a perspective view of an interrupter constituting a bed according to the first embodiment of the present invention.

Referring to FIG. 13, an interrupter (40) according to an embodiment of the present invention is interposed between adjacent intensity control modules and functions to prevent interference between adjacent intensity control modules.

In particular, the interrupter (40) is placed at a point where a hinge axis is placed among the frames constituting the motion control unit (30).

Specifically, the interrupter (40) may be placed on an upper hinge axis that serves as a center of rotation of the upper body frame (31), a lower hinge axis that serves as a center of rotation of the thigh frame (33), and a connecting flange (334, 344) through which the thigh frame (33) and the calf frame (34) relatively rotate.

An interrupter (40) placed between the upper body frame (31) and the hip frame (32) can be defined as a first interrupter.

The interrupter (40) placed between the hip frame (32) and the thigh frame (33) can be defined as a second interrupter.

The interrupter (40) placed between the thigh frame (33) and the calf frame (34) can be defined as a third interrupter.

Accordingly, when the upper body frame (31) is tilted upward, the upper part of the cushion member (C) placed at the rear end of the upper body frame (31) and the upper part of the cushion member placed at the front end of the hip frame (32) become closer. As a result, the upper shape of the first interrupter is deformed and compressed.

Likewise, when the thigh frame (33) is tilted upward, the upper shape of the second interrupter is deformed and compressed.

The third interrupter may have a thickness in the front-back direction greater than the gap between the cushion member placed at the rear end of the thigh frame (33) and the cushion member placed at the front end of the calf frame (34). Here, the front-back direction may be understood to mean the longitudinal direction of the motion control unit.

Accordingly, when the third interrupter is inserted between the thigh frame (33) and the calf frame (34), it is maintained in a reduced state compared to the original thickness (basic thickness) when no external force is applied.

In this state, when the thigh frame (33) is tilted upward, the gap between the cushion members adjacent to the front and rear ends of the third interrupter increases. As a result, the third interrupter is deformed in a direction approaching the basic thickness.

However, since the rear end of the thigh frame (33) and the front end of the calf frame (34) rotate relative to each other, the shape can be deformed into a so-called fan shape, in which the upper part of the third interrupter is thicker than the lower part.

Here, the interrupter (40) is made of the same material as the topper (12) or the safe guard (13), and can have a characteristic of undergoing shape deformation when an external force is applied and returning to the original state when the external force is removed.

In addition, a plurality of slits (42) may be formed on the upper portion of the interrupter (40), so that the shape of the upper portion of the interrupter (40) may be easily deformed. Accordingly, the interrupter (40) may be described as including a body (41), a plurality of slits (42) formed on the upper portion of the body (41), and a plurality of fins (fins, 43) defined between the plurality of slits (42).

And, the plurality of slits (42) and pins (43) are formed to extend in the longitudinal direction of the interrupter (40) (the width direction of the motion control unit) and alternately in the thickness direction of the interrupter (40) (the length direction of the motion control unit).

Hereinafter, one embodiment of a cushion member (C) constituting a strength adjustment module of a bed according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, the cushion member (C) may be given a different drawing reference numeral.

In addition, the cushion member described below is described as having a cylindrical shape as an example, but it is not limited thereto. In other words, the cushion member according to the embodiment of the present invention includes one having a polygonal cylinder shape.

FIG. 14 is a front perspective view of a cushion member according to one embodiment of the present invention, FIG. 15 is a bottom perspective view of the cushion member, and FIG. 16 is an exploded perspective view of the cushion member.

Referring to FIGS. 14 to 16, a cushion member (90) according to one embodiment of the present invention may include an outer case (91), an inner case (92), an outer spring (93), an inner spring (94), an upper cover (97), a lead screw (99), and a transmission gear (990).

In addition, the cushion member (90) may further include at least some or all of the inner spring cover (95), the outer spring cover (98), and the buffer (96).

In detail, the outer spring (93) may include a coil spring wound in a spiral shape.

The inner spring (94) may have a diameter smaller than that of the outer spring (93) and an elastic coefficient (or a small spring constant) smaller than that of the outer spring (93). In other words, the elastic strength of the inner spring (94) may be set smaller than that of the outer spring (93).

Here, the elastic strength can be understood as being inversely proportional to the amount of deformation. For example, for the same axial force, the amount of deformation of the inner spring (94) is greater than that of the outer spring (93).

However, it should be noted that the elastic strength of the inner spring (94) and the outer spring (93) may be set to be the same.

A screw thread may be formed on the outer surface of the lead screw (99), and the transmission gear (990) may be coupled to the lower end. The lead screw (99) is rotatably coupled to the center of the bottom of the outer case (91), and the inner case (92) is screw-coupled to the outer surface of the lead screw. Then, by the rotation of the lead screw (99), the inner case (92) rises or falls along the lead screw (99).

The inner spring cover (95) above is a cover that wraps around the inner spring (94), and may include a thin cloth, but is not limited thereto, and any material that has the property of restoring its original state after its shape is deformed according to elastic deformation of the spring may be used.

The above outer spring cover (98) is a cover that covers the outer spring (93) and can be made of the same material as the inner spring cover (95).

The buffer (96) is mounted on the bottom surface of the upper cover (92), and the upper end of the inner spring (94) touches the bottom surface of the buffer (96) to absorb impact and noise. For example, when the inner case (92) is lowered to a point where the upper end of the inter spring (94) is separated from the bottom surface of the upper cover (97), and a vertical force is applied to the cushion member (90), the buffer (96) can absorb noise generated when the inner spring (94) hits the bottom surface of the upper cover (97).

Below, the structure of the upper cover (97), inner case (92) and outer case (91) and the function of each part will be described in detail with reference to the drawings.

FIG. 17 is a bottom perspective view of an upper cover constituting a cushion member according to an embodiment of the present invention.

Referring to FIG. 17, the upper cover (97) constituting the cushion member (90) according to the embodiment of the present invention may include a circular or polygonal cover plate (971) and a cover sleeve (972) extending downward from an edge of the cover plate (971).

A buffer mounting portion (971a) may be formed stepwise upward on the bottom surface of the cover plate (971). The bottom surface of the cover plate (971) corresponding to the edge of the buffer mounting portion (971a) and the inner edge of the cover sleeve (972) may be defined as a spring mounting portion (971b). The upper end of the outer spring (93) is mounted on the spring mounting portion (971b).

FIG. 18 is a perspective view of an inner case constituting a cushion member according to an embodiment of the present invention.

Referring to FIG. 18, an inner case (92) constituting a cushion member (90) according to an embodiment of the present invention may include a base plate (921) having a circular or polygonal shape, a base sleeve (922) extending upward from an edge of the base plate (921), and a screw boss (923) extending from the center of the upper surface of the base plate (921).

In detail, a plurality of guide protrusions (927) protrude radially from the base sleeve (922), and the plurality of guide protrusions (927) are spaced apart from each other in the circumferential direction of the base sleeve (922).

The above guide protrusion (927) may be formed by bending and extending the base sleeve (922). The above guide protrusion (927) may include a pair of side portions that extend in the radial direction of the base plate (921) and face each other, and a front portion that connects the pair of side portions.

A screw hole (924) is formed on the inside of the screw boss (923), and screw threads are formed on the inner surface of the screw hole (924).

A plurality of reinforcing ribs (926) may extend radially on the outer surface of the screw boss (923). The lower end of the inner spring (94) is placed in the space between the ends of the plurality of reinforcing ribs (926) and the inner surface of the base sleeve (922). Therefore, the plurality of reinforcing ribs (926) perform the function of preventing radial shaking of the inner spring (94) in addition to the function of reinforcing the strength of the screw boss (923).

Additionally, one or more holes (928) (or slits) may be formed in the base plate (921).

FIG. 19 is a perspective view of an outer case constituting a cushion member according to an embodiment of the present invention.

Referring to FIG. 19, an outer case (91) constituting a cushion member (90) according to a fifth embodiment of the present invention may include a bottom plate (911) having a circular or polygonal shape, and a case sleeve (912) extending upward from an upper surface of the bottom plate (911) and having a diameter smaller than the diameter of the bottom plate (911).

In detail, a spring flange (913) is bent and extended upward from the edge of the bottom plate (911). In addition, the upper surface of the bottom plate (911) corresponding to between the spring flange (913) and the case sleeve (912) can be defined as a spring mounting portion (914) on which the lower end of the outer sleeve (93) is mounted.

In addition, a pair of guide ribs (915) extend from the inner surface of the case sleeve (912), and a plurality of guide sections formed of the pair of guide ribs (915) can be arranged in the circumferential direction of the case sleeve (912).

The guide projection (927) of the inner case (92) is fitted into the space between the pair of guide ribs (915). Accordingly, the guide portion formed by the pair of guide ribs (915) can be formed on the inner surface of the case sleeve (912) in a number corresponding to the number of guide projections (927).

A screw hole (916a) may be formed in the center of the bottom plate (911), and a support sleeve (916) may be extended to an edge of the screw hole (916a) to support the lead screw (99) passing through the screw hole (916a).

The bottom plate (911) may have a plurality of air holes (917) spaced apart from each other in the circumferential direction. Each of the plurality of air holes (917) may be formed in the shape of a long hole extending roundly in the circumferential direction of the bottom plate (911), but the size or shape of the air holes (917) is not limited thereto.

Additionally, a number of anti-sway ribs (918) may be protruded from the upper surface of the bottom plate (911) corresponding to the inner edge of the case sleeve (912).

The above-mentioned anti-sway rib (918) may be formed in a semicircular or oval shape and protrudes from the inner surface of the case sleeve (912) toward the center of the bottom plate (911).

FIG. 20 is a plan view showing the combined state of an outer case, an inner case, and a lead screw constituting a cushion member according to an embodiment of the present invention.

Referring to Fig. 20, the pair of guide ribs (915) formed on the outer case (91) are each closely attached to both side surfaces of the guide protrusion (927) formed on the inner case (92).

In detail, since the guide protrusion (927) is supported by the guide rib (915), the phenomenon of the inner case (92) spinning in the circumferential direction when it is raised or lowered can be prevented.

In addition, when the inner case (92) is lowered to the bottom surface of the outer case (91), the anti-sway rib (918) comes into contact with the outer surface of the inner case (92). As a result, the phenomenon of the inner case (92) swaying radially and generating noise can be prevented.

FIG. 21 is a longitudinal cross-sectional view of a cushion member according to an embodiment of the present invention cut along line 21-21 of FIG. 14 in a state where no external force is applied, and FIG. 22 is a longitudinal cross-sectional view of a cushion member according to an embodiment of the present invention cut along line 21-21 of FIG. 14 in a state where an external force is applied.

Referring to FIGS. 21 and 22, the height of the inner case (92) is adjusted by rotating the lead screw (99) clockwise or counterclockwise.

In detail, in the basic state where no external force is applied, the upper part of the inner spring (94) may or may not touch the buffer (96) depending on the height of the inner case (92).

In this state, when a vertical external force is applied to the upper surface of the cushion member (90), the outer cover (97) is lowered and the outer spring (93) and the inner spring (94) are compressed simultaneously, or the outer spring (93) is compressed first and then the inner spring (94) is compressed together, so that the cushion strength of the cushion member (90) can be adjusted.

FIG. 23 is a side perspective view of a strength control module according to one embodiment of the present invention, and FIG. 24 is a bottom perspective view of the strength control module.

Referring to FIGS. 23 and 24, the strength adjustment module (M1) constituting the cushion strength control unit according to an embodiment of the present invention is characterized in that the strength of the cushion member is automatically adjusted by the rotational force supplied from the driving motor.

In detail, the strength control module (M1) according to the present embodiment may include a module case (21), a plurality of cushion members (90) mounted on the module case (21), and a driving means for uniformly and equally controlling the cushion strength (or elastic strength) of the plurality of cushion members (90).

The above module case (21) may include a bottom case (23) and an upper case (22), and the driving means may be accommodated in a space defined between the bottom case (23) and the upper case (22).

In the drawing, one strength control module (M1) is depicted as being composed of eight cushion members (90), but it should be noted that there is no limitation on the number of cushion members (90).

FIG. 25 is an exploded perspective view of a strength control module according to an embodiment of the present invention, and FIG. 26 is an exploded perspective view showing the bottom structure of a module case constituting the strength module.

Referring to FIGS. 25 and 26, a strength control module (M1) according to an embodiment of the present invention may include a module case (21), a plurality of cushion members (90), and a driving means.

The above driving means may include a driving motor (24) and a gear assembly (25). The driving motor (24) may be defined as a rotational force transmitting member that transmits rotational force to operate the gear assembly (25).

The upper case (22) above may include an outer frame (221) formed in a rectangular shape with a predetermined height, and an inner plate (222) formed on the inner side of the outer frame (221).

The inner plate (222) is formed at a point spaced a predetermined distance upward from the lower end of the outer frame (221), thereby dividing the inner space of the upper case (22) into an upper space and a lower space.

The gear assembly (25) is accommodated in the lower space of the upper case (22), and a plurality of cushion members (90) are placed in the upper space of the outer frame (221).

A number of gear shafts (225) protrude from the lower surface of the inner plate (222) so that gears to be described later can be rotatably mounted.

A plurality of partition plates (223) protrude from the upper surface of the inner plate (222) to partition the upper space of the outer frame (221) into a plurality of small spaces.

The above-described plurality of partition plates (223) may include a plurality of horizontal partition plates that extend in the width direction of the upper case (22) and are arranged at equal intervals in the length direction, and a vertical partition plate that extends in the length direction of the upper case (22). The vertical partition plates divide the upper space of the outer frame (221) into two halves left and right.

The number of vertical partition plates is determined according to the number of rows in which the plurality of cushion members (90) are arranged, and the number of horizontal partition plates is determined according to the number of rows in which the plurality of cushion members (90) are arranged.

A support sleeve (224) may be extended into each of the plurality of small spaces partitioned by the horizontal partition plate and the vertical partition plate, and a through hole (224a) may be formed in the inner plate (222) corresponding to the inner side of the support sleeve (224).

The heights of the support sleeve (224) and the partition plates (223) may be the same, and the inner diameter of the support sleeve (224) may be formed to a size corresponding to the outer diameter of the cushion member (90).

The above through hole (224a) is formed with a diameter smaller than the inner diameter of the support sleeve (224), so that a mounting surface (224b) is formed on the inner bottom of the support sleeve (224), so that the bottom edge of the cushion member (90) can be supported.

In addition, the diameter of the through hole (224a) is formed to a size corresponding to the outer diameter of the transmission gear (990), so that when the cushion member (90) is seated on the inside of the support sleeve (224), the transmission gear (990) passes through the through hole (224a) and is exposed to the lower space of the outer frame (221).

Meanwhile, a sealer (26) is mounted on the edge of the lower space of the upper case (22), so as to minimize the inflow of foreign substances through the joint portion of the bottom case (23) and the upper case (22). Furthermore, noise generated when the gear is driven in the lower space of the outer frame (221) can be minimized from leaking to the outside.

In addition, the bottom case (23) may include a bottom portion (231) and a side wall (232) extending upward from an edge of the bottom portion (231). The side wall (232) is in close contact with the inner surface of the outer frame (21) defining the lower space of the upper case (22). In addition, the sealer (26) may be in close contact with the upper portion of the side wall (232) or may be interposed between the outer surface of the upper portion of the side wall (232) and the inner surface of the outer frame (221).

A plurality of shaft holes (233) can be formed in the above bottom portion (231) at points corresponding directly below the plurality of gear shafts (225).

However, if the length of the gear shaft (225) is formed to a length corresponding to the depth of the lower space of the upper case (22), the shaft hole (233) may not be formed.

In other words, when the gear shaft (225) is extended to a length corresponding to the distance between the bottom surface of the inner plate (222) and the bottom portion (231) while the bottom case (233) is coupled to the upper case (22), the shaft hole (233) may not be formed.

Additionally, a motor housing (235) for accommodating the driving motor (24) may be protruded from the lower surface of the bottom portion (231).

The above motor housing (235) may be formed so that a portion of the bottom portion (231) is sunken or stepped downwards to a predetermined depth.

Alternatively, a communication hole may be formed in the bottom portion (231), and a separate housing member may be combined with the lower surface of the bottom portion (231) directly below the communication hole to define the motor housing (235).

Meanwhile, the gear assembly (25) constituting the driving means may include a driving gear (251) connected to the rotational axis of the driving motor (24), and a plurality of driven gears (252) arranged between the driving gear (251) and adjacent transmission gears (990).

Here, a gear directly connected to the driving gear (251) may be defined as a driven gear, and a gear interposed between adjacent transmission gears (990) may be defined as an idle gear.

Alternatively, all of the above-described plurality of driven gears (252) may be defined as idle gears.

The above gear shaft (225) may extend from the lower surface of the inner plate (222), but may also extend upward from the upper surface of the bottom portion (231).

The above gear shaft (225) can be understood to include a driven gear shaft on which a driven gear (252) that meshes with the driving gear (251) is mounted, and an idle gear shaft on which an idle gear that meshes with the transmission gear (990) is mounted.

Meanwhile, a spacer (234) may be placed in the center of the bottom portion (231), specifically, in the space corresponding to the space between two rows of transmission gears (990) arranged in the longitudinal direction of the module case (21).

The above spacer (234) performs the function of preventing the gear engagement from collapsing due to the driven gears (252) (or idle gears) swinging in the width direction of the module case (21).

In addition, the spacer (234) is formed with a height corresponding to the gap between the inner plate (222) and the bottom portion (231), and performs the function of preventing sagging of the inner plate (222).

FIG. 27 is a cutaway perspective view of a strength control module according to an embodiment of the present invention taken along line 27-27 of FIG. 23, and FIG. 28 is a bottom view of the strength control module according to an embodiment of the present invention with the bottom case removed.

Referring to FIGS. 27 and 28, the transmission gear (990) and the driven gear (252) are alternately connected to each other, and the transmission gears (990) all rotate in the same direction by the driven gears (252).

In detail, the rotational power supplied from the driving motor (24) is transmitted to the driven gear (252) through the driving gear (251), and the rotational power transmitted to the driven gear (252) is sequentially transmitted to the transmission gear (990) and the driven gear (252) (or idle gear).

A gear directly connected to the above driving gear (251) can be defined as a driven gear (252), and a gear positioned between adjacent transmission gears (990) can be defined as an idle gear.

Additionally, as illustrated, the drive gear (251) may mesh with the outermost driven gear row, but it is not excluded that it may mesh with a plurality of driven gear rows located on the inner side rather than the outermost side.

According to this structure, when the cushion strength is set through an input unit (not shown) provided in the bed, the drive motor (24) rotates. Then, when the drive motor (24) rotates, the rotational force is transmitted to the gear assembly (25), so that the plurality of cushion members (90) constituting the unit strength adjustment module are all controlled to have the same elastic strength.

In addition, although the present embodiment describes that cushion members are provided in two rows and that a plurality of cushion members are connected by gears in each row, a structure in which one row or three or more rows of cushion members are connected is also possible.

When multiple cushion members are provided in one row, one driven gear (252) may be connected to the driving gear (251).

When three or more rows of cushion members are provided, the cushion strength of three or more rows of cushion members can be controlled with one drive motor (24) by arranging idle gears between adjacent driven gears.

FIG. 29 is a bottom perspective view of a bed according to a first embodiment of the present invention equipped with a drying module, and FIG. 30 is a longitudinal cross-sectional view of the bed taken along line 30-30 of FIG. 29.

Referring to FIGS. 29 and 30, a drying module (50) for supplying indoor air to dry the topper (12) may be mounted on the bottom of the bed (10) according to the first embodiment of the present invention.

In detail, a safety guard (13) positioned on the user's foot side may be formed with an intake port (131) for sucking indoor air. This is because the safety guard (13) positioned on the user's head side is usually installed in close contact with an indoor wall.

Accordingly, depending on the installation conditions of the bed (10), it may be formed in a safe guard portion excluding the safe guard (13) that is in close contact with the interior wall. For example, the suction port (131) may be formed in the safe guard (13) on both sides of the bed (10), that is, close to both shoulders of the user.

And, the suction port (131) is formed at a point close to the bottom of the safe guide (13), and the suction port (131) can be connected to an indoor air suction unit formed in the drying module (50).

The indoor air that is introduced into the drying module (50) through the above-mentioned suction port (131) is discharged toward the topper (12) through the indoor air discharge portion formed in the drying module (50).

As shown in Fig. 30, a plurality of indoor air discharge portions are formed in the drying module (50), and the plurality of indoor air discharge portions are arranged to face the topper (12). Accordingly, indoor air is discharged upward from the drying module (50), passes through the intensity control unit (20), and flows toward the topper (12) to dry the topper (12).

Since the above topper (12) is formed of a porous memory foam material, some of the indoor air that hits the bottom surface of the topper (12) can pass through the topper (12).

And, the remaining part of the air that hits the topper (12) is diffused to the bottom edge of the topper (12) and rises along the side of the topper (12). The air that rises along the side of the topper (12) evaporates moisture that has permeated the upper surface of the topper (12) while flowing through the space between the bed cover (11) and the upper surface of the topper (12).

The indoor air discharge unit of the above drying module (50) is not structured to be completely in contact with the bottom surface of the motion control unit (20). Therefore, the indoor air discharged through the indoor air discharge unit can rise through a number of gaps formed in the motion control unit (20) and be evenly distributed over the entire bottom surface of the topper (12).

Below, the structure of the drying module (50) is described in detail with reference to the drawings.

FIG. 31 is a perspective view of a drying module provided in a bed according to the first embodiment of the present invention.

Referring to FIG. 31, a drying module (50) according to an embodiment of the present invention may include a blower fan (53) for sucking indoor air, a suction duct (52) having one end connected to a suction hole of the blower fan (53), a filter unit (51) arranged at the other end of the suction duct (52), a supply duct (54) having one end connected to a discharge hole of the blower fan (53), and a plurality of discharge ducts (55) connected to discharge ports of the supply ducts (54).

In detail, the other end of the suction duct (52) on which the filter unit (51) is mounted may be defined as an indoor air intake portion of the drying module (50), and the discharge port (551) formed in the discharge duct (55) may be defined as an indoor air discharge portion of the drying module (50).

The above filter unit (51) may be mounted on the other end of the suction duct (52), i.e., the suction port, or may be mounted on the suction port (131) formed on the safe guard (13).

Since the above drying module (50) is fixedly mounted to the motion control unit (30), when the motion control unit (30) is tilted, the drying module (50) must also be tilted.

Accordingly, the suction duct (52) may be formed by a combination of a flexible soft duct (522) and a non-flexible rigid duct (521). The supply duct (54), like the suction duct (52), may also be formed by a combination of a rigid duct (541) and a soft duct (542).

The above soft duct (522, 542) may include a duct in the form of a corrugated pipe.

The soft duct (522, 542) may be positioned in an area where the rotation axis of the motion control unit (30) is located. For example, the soft duct (522, 542) may be positioned at a point where the upper body frame (31) and the hip frame (32) meet, a point where the hip frame (32) and the thigh frame (33) meet, and a point where the thigh frame (33) and the calf frame (34) meet. In other words, the soft duct (522, 542) may be described as being positioned on the lower side of the interrupter (40).

The above drying modules (50) may be arranged in a single row according to the specifications of the bed (10), or may be arranged in multiple rows in the width direction of the bed (10).

The above blower fan (53) has one intake port, but multiple discharge ports can be formed, and as a result, one intake duct (52) can be connected to the blower fan (53), while multiple supply ducts (54) can be connected to the blower fan (53).

The above blower fan (53) may be a centrifugal fan that sucks in air in the axial direction and discharges it in the radial direction, and may include, for example, a turbofan.

The above blower fan (53) may include a fan and a fan housing that accommodates the fan, and one intake port may be formed on the bottom surface of the fan housing and a plurality of discharge ports may be formed on the side surface of the fan housing.

As illustrated, a pair of outlets may be formed on the side of the fan housing, but may be formed at positions facing each other. Accordingly, a pair of supply ducts (54) may be arranged in a row, extending a predetermined length in opposite directions from the fan housing. However, depending on the structure of the motion control unit (30), the angle formed by the pair of supply ducts (54) may be less than 180 degrees.

A plurality of discharge ports may be formed on the upper surface of the supply duct (54), and the plurality of discharge ports may be spaced apart in the length direction of the supply duct (54).

The above-described plurality of discharge ports may be respectively connected to the above-described plurality of discharge ducts (55). The above-described plurality of discharge ducts (55) and the above-described supply duct (54) may be injection-molded as a single body. Alternatively, a structure in which the above-described plurality of independent discharge ducts (55) are connected to the above-described supply duct (54) is also possible.

Each of the above-described plurality of discharge ducts (55) can have a predetermined width and extend to a predetermined length in a direction intersecting the extension direction of the supply duct (54).

The upper surface of the above discharge duct (55) is open, and the discharge port (551) is formed on the bottom. It goes without saying that the discharge port (551) communicates with the discharge port formed on the upper surface of the supply duct (54).

The above discharge port (551) has a predetermined width and extends a predetermined length in the longitudinal direction of the discharge duct (55), and may be formed in the shape of a slit, but is not limited thereto.

When the above discharge port (551) is formed in the form of a narrow slit, the speed of the air discharged through the discharge port (551) increases, so that the air discharged through the discharge port (551) can effectively reach the topper (12).

The width of the above discharge duct (55) may be formed to a length corresponding to the width of the interrupter (40), but is not limited thereto.

When one drying module (50) is provided on the bottom surface of the bed (10), the discharge duct (55) can be extended to a length corresponding to the width of the bed (10), specifically, the topper (12).

Meanwhile, the suction duct (52) is illustrated as a structure that extends substantially parallel to the supply duct (54) from the lower side of the supply duct (54), but is not limited thereto. As another example, the suction duct (52) may also extend in a direction perpendicular to the supply duct (54), that is, in the width direction of the bed (10).

Since the shorter the length of the suction duct (52), the lower the flow resistance, it is also preferable for the suction port of the suction duct (52) to be located on one side of the bed (10).

FIG. 32 is a perspective view of a bed according to a second embodiment of the present invention, and FIG. 33 is a longitudinal cross-sectional view of the bed taken along line 33-33 of FIG. 32.

Referring to FIGS. 32 and 33, a bed (10a) according to the second embodiment of the present invention is characterized in that a strength control unit (20) and a motion control unit (300) according to the second embodiment are formed integrally, and a topper (12) is separable from the strength control unit (20).

In detail, the topper (12) may be provided surrounded by a bed cover (11). Although the thickness of the topper (12) is expressed to be thicker than the thickness of the doffer (12) presented in the previous embodiment, it is to be understood that it is not limited thereto.

In addition, a drying module (500) is provided at the lower side of the motion control unit (300), and the drying module (500) can be integrally coupled to the motion control unit (300). That is, when the motion control unit (300) is tilted, a part of the drying module (500) located at the lower side of the tilted part can also be tilted.

In addition, the drying module (500) sucks in indoor air and supplies it toward the topper (12), like the drying module (50) provided in the bed (10) according to the first embodiment, thereby drying the topper (12).

The strength control unit (20) can be defined as a set of a strength adjustment module (M1) and an interrupter (40), similar to the first embodiment.

The bed (10a) according to the second embodiment of the present invention may further include a guard frame (60) that accommodates the strength control unit (20) and the motion control unit (300).

The above guard frame (60) performs the function of the safe guard (13) described in the first embodiment, and at the same time performs the function of supporting the motion control unit (300). In other words, the motion control unit (300) according to the second embodiment is integrally connected to the inside of the guard frame (60), and at least a portion thereof is tiltable while connected to the guard frame (60).

The above bed (10a) may further include a plurality of legs (70) coupled to the corners of the guard frame (60).

The bottom surface of the guard frame (60) is spaced from the installation surface by the length of the leg (70), so that the link member (described later) constituting the motion control unit (300) can be prevented from touching the installation surface.

Here, if the height of the guard frame (60) is designed to be sufficiently long so that the components of the motion control unit (300) do not touch the installation surface during the operation of the motion control unit (300), the leg (70) may not be necessary.

That is, if the motion control unit (300) and the drying module (500) are designed so that they do not touch the installation surface while the bottom of the guard frame (60) touches the installation surface, the leg (70) can be omitted.

Below, the structure and operation of the motion control unit (300) and drying module (500) according to the second embodiment will be described in detail with reference to the drawings.

FIG. 34 is an exploded perspective view of a bed according to a second embodiment of the present invention, and FIG. 35 is a bottom perspective view of a strength control unit and a motion control unit combination.

Since the above strength control unit (20) can be applied with the same structure as the strength control unit (20) described in the first embodiment, a description of the strength control unit (20) is omitted.

However, the structure in which the strength control unit (20) is coupled to the motion control unit (300) is described below with reference to the drawings.

Referring to FIGS. 34 and 35, the guard frame (60) may include a head frame (61), a toe frame (63), and a pair of side frames (61) to surround and protect the side surfaces of the motion control unit (300) and the strength control unit (20).

In detail, the head frame (62) is placed at the edge of the intensity control unit (20) adjacent to the user's head when the user lies down. And, the toe frame (63) is placed at the edge of the intensity control unit (20) adjacent to the user's foot.

The guard frame (60) may further include a connector (64) provided at a corner portion where the four frames (61, 62, 63) meet. The connector (64) is bent at 90 degrees so that the ends of two adjacent frames intersecting each other are respectively connected. Then, the four frames (61, 62, 63) are connected as one body by the four connectors (64) to form a single support frame.

An edge plate (65) is formed at the bottom of the corner of the guard frame (60) to which the upper end of the leg (70) is joined, and a fixing bracket (66) is formed on the edge plate.

A support plate (67) is placed on the inner surface of the lower portion of the head frame (62) and the fraud toe frame (63), and both ends of the support plate (67) are supported by being fitted into the fixing bracket (66). In order for both ends of the support plate (67) to be fitted into the fixing bracket (66), the fixing bracket (66) may form an n-shape.

The bottom surfaces of one end (the end where the user's head is positioned) and the other end (the end where the user's foot is positioned) of the above motion control unit (300) are placed on the support plate (67). Accordingly, the phenomenon in which the combination of the motion control unit (300) and the strength control unit (20) sags downward due to a load can be prevented.

Additionally, the central points on both sides of the motion control unit (300) are fixed to the side frame (61) by fixed blocks (described later).

A fastening hole (611) is formed in the central portion of the side frame (61), so that a fastening member connects the side frame (61) and the fixed block.

In addition, a link drive shaft connection end (612) may be extended to the lower end of the side frame (61). A link drive shaft (described later) is rotatably connected to the link drive shaft connection end (612).

In addition, a detachment prevention member (68) is provided on the upper end of the toe frame (63) to prevent the topper (12) from being pushed down when the motion control unit (300) is tilted.

The above-mentioned detachment prevention member (68) may be a part of the toe frame (63) or may be an independent member connected to the toe frame (63).

The drying module (500) is positioned below the strength control unit (20) and can be fixed to the motion control unit (300). Accordingly, a part of the drying module (500) can be tilted together with the motion control unit (300), similar to the first embodiment.

FIG. 36 is a perspective view from above of a combination of a motion control unit and a guard frame according to a second embodiment of the present invention, and FIG. 37 is a perspective view from below of a combination of a motion control unit and a guard frame according to the second embodiment.

Referring to FIGS. 36 and 37, a motion control unit (300) according to an embodiment of the present invention may include a motion generator (3100), a motion link (3200), and a settling frame (3300).

First, the above-mentioned settling frame (3300) is a portion where the strength control unit (20) is placed and is tilted in part by the driving force supplied from the motion generator (3100).

The above-mentioned fixing frame (3300) may include a pair of fixing blocks (3310), an upper body frame (3320), a lower body frame (3330), a cushion member fixing plate (3340), and a fixing bar (3350).

The above pair of fixed blocks (3310) are respectively fixed to the inner surfaces of the above pair of side frames (61) constituting the above guard frame (60) and face each other. In detail, a fastening member including a screw can be inserted into the above fixed blocks (3310) by penetrating the above fastening hole (611) formed in the above side frame (61). The above pair of fixed blocks (3310) can be positioned at the central point of the above side plate (61), but is not limited thereto.

One end of the upper body frame (3320) and one end of the lower body frame (3330) are rotatably connected to the above fixed block (3310).

The upper body frame (3320) may include a pair of middle upper frames (3321) each of which is rotatably coupled to one end of the pair of fixed blocks (3310), and a pair of upper frames (3322) each of which is rotatably coupled to the other end of the pair of middle upper frames (3321). The pair of middle upper frames (3321) and the pair of upper frames (3322) are respectively arranged parallel to each other.

The lower body frame (3330), like the upper body frame (3320), may include a pair of middle lower frames (3331) each of which is rotatably connected to a pair of fixed blocks (3310) at one end, and a pair of lower frames (3332) each of which is rotatably connected to the other end of the pair of middle lower frames (3331).

The above cushion member mounting plate (3340) connects a pair of frames arranged parallel to each other.

The above-mentioned settling frame (3300) may be defined as a structure including straight bars arranged in parallel and a cushion member settling plate connecting the parallel straight bars.

For example, the upper frame (3322) may be defined as a structure including a pair of parallel straight bars and one or more cushion member mounting plates connecting the pair of parallel straight bars.

Alternatively, a structure comprising a pair of straight bars facing each other and one or more cushion member mounting plates connecting the pair of straight bars may be defined as a tilting member. In this case, each of the upper body frame (3320) and the lower body frame (3330) may be described as including two tilting members that are connected to each other so as to be able to rotate relative to each other.

In more detail, the upper body frame (3320) can be described as including a first tilting part, one end of which is rotatably connected to the fixed block (3310), and a second tilting part that is rotatably connected to the other end of the first tilting part.

And, the first tilting part can be described as including a pair of middle upper frames (3321) and one or more cushion member mounting plates (3340) connecting the pair of middle upper frames (3321).

The above second tilting portion can be described as including a pair of upper frames (3322) and one or more cushion member mounting plates (3340) connecting the pair of upper frames (3322).

Likewise, the lower body frame (3330) can be described as including a third tilting part, one end of which is rotatably connected to the fixed block (3310), and a fourth tilting part that is rotatably connected to the other end of the third tilting part.

In addition, the third tilting portion may be described as including a pair of middle lower frames (3331) and one or more cushion member mounting plates (3340) connecting the pair of middle lower frames (3331).

The above fourth tilting portion can be described as including a pair of lower frames (3332) and one or more cushion member mounting plates (3340) connecting the pair of lower frames (3332).

It is to be noted that the concept of the first to fourth tilting sections above can be similarly applied to the motion control unit (30) of the bed (10) according to the first embodiment.

For example, the hip frame (32) constituting the motion control unit (30) of the bed (10) according to the first embodiment may be defined as a fixed part, the upper body frame (31) may be defined as a first tilting part, the thigh frame (33) may be defined as a second tilting part, and the calf frame (34) may be defined as a third tilting part.

It should be noted that the order of the first to third tilting parts is not limited to the above example. That is, one of the upper body frame (32), thigh frame (33), and calf frame (34) may be defined as the first tilting part, one of the remaining two may be defined as the second tilting part, and the other of the remaining two may be defined as the third tilting part.

Meanwhile, the two ends of the fixed bar (3350) can connect the bottom surfaces of the pair of fixed blocks (3310), respectively, to minimize the sagging phenomenon of the motion control unit (300). In addition, a transmission (3110: described later) constituting the motion generator (3100) can be coupled to the fixed bar (3350).

In addition, an upper link connection end (3323) is provided on the bottom surface of each of the pair of upper frames (3322), and a lower link connection end (3333) is provided on the bottom surface of each of the pair of lower frames (3332).

The combination of the above motion generator (3100) and the above motion link (3200) can be defined as a tilting force generating means.

The above motion generator (3100) may include a transmission and a link drive shaft (3150) passing through the transmission. Both ends of the link drive shaft (3150) are respectively connected to the link drive shaft connecting end (612).

The above link drive shaft (3150) may include a pair of shafts.

The pair of shafts constituting the above link drive shaft (3150) can be defined as an upper link drive shaft penetrating the front end of the transmission and a lower link drive shaft penetrating the rear end of the transmission.

A mounting groove is formed on the inner surface of the above link drive shaft connecting section (612), and an end of the above link drive shaft (3150) can be fitted into the mounting groove. In addition, a plurality of ball bearings are arranged on the inner surface of the above mounting groove, so that frictional force can be minimized when the above link drive shaft (3150) rotates.

In addition, since both ends of the link drive shaft (3150) are connected to the link drive shaft connecting end (612), there is an effect in which the load of the motion generator (3100) and the motion link (3200) is supported by the guard frame (60).

The above motion link (3200) may include a pair of upper links (3210) connected to both ends of the upper link driving shaft, and a pair of lower links (3220) connected to both ends of the lower link driving shaft.

The upper link (3210) and lower link (3220) may each be provided and connected to the center of the link driving shaft (3150).

In detail, the upper link (3210) may include a bracket (3211) extending downward from the upper link driving shaft, a fixed link (3212) extending from an end of the bracket (3211), and a movable link (3213) rotatably connected to an end of the fixed link (3212). An end of the movable link (3213) is connected to the upper link connecting end (3323).

The above movable link (3213) may be fixedly connected to the upper link connecting section (3323) or may be rotatably connected.

In detail, the fixed link (3212) extends in a direction intersecting the bracket (3211). In addition, one end of the fixed link (3212) is fixed to the bracket (3211), so that the upper link driving shaft, the bracket (3211), and the fixed link (3212) rotate as one body.

In addition, the lower link (3220) may include a bracket (3221) extending downward from the lower link driving shaft, a female link (3222) extending from the lower link driving shaft in a direction orthogonal to the bracket (3221), a fixed link (3223) having one end rotatably connected to an end of the bracket (3221), a connecting link (3224) having one end rotatably connected to the other end of the fixed link (3223), and a movable link (3225) having one end rotatably connected to the other end of the connecting link (3224).

The above bracket (3221) and the female link (3222) may be formed as a single member that is bent in an L shape. That is, the lower link drive shaft may be designed to penetrate the member that is bent in an L shape, and the member that is bent in an L shape may be fixed to the lower link drive shaft.

In detail, the arm link (3222) may include an arm link body extending horizontally from the lower link driving shaft, and a circular slider formed at an end of the arm link body. The diameter of the slider may be formed to be larger than the upper and lower widths of the arm link body, so that only the upper surface of the slider among the arm links (3222) may contact the lower surface of the lower frame (3332).

The upper surface of the above slider can be designed to slide while maintaining contact with the lower surface of the lower frame (3332), so that when the lower link drive shaft rotates, the lower frame (3332) rotates relative to the middle lower frame (3331).

Additionally, the other end of the above movable link (3225) can be rotatably connected to the lower link connecting end (3333).

In summary, it can be understood that the upper link (3210) is formed of a two-section link structure and the lower link (3220) is formed of a multi-section link structure including a four-section link, but it is not limited thereto and it is disclosed that various forms of link members can be proposed.

FIG. 38 is a cross-sectional view of the motion generator taken along line 38-38 of FIG. 37, and FIG. 39 is a longitudinal cross-sectional view of the motion generator taken along line 39-39 of FIG. 38.

Referring to FIGS. 38 and 39, a motion generator (3100) according to an embodiment of the present invention is a device that generates driving force to rotate the link driving shaft (3150).

In detail, the motion generator (3100) may include a transmission and a link drive shaft (3150) connected to the transmission.

The above transmission may include a gear box (3110), a tilting motor (3120) accommodated inside the gear box (3110), a tilting gear (3130) connected to a rotation shaft (3121) of the tilting motor (3120), and a reduction gear (3140) engaged with the tilting gear (3130).

And, the link drive shaft (3150) passes through the gear box (3110) and rotates while engaging with the reduction gear (3140).

In this embodiment, it is described that two tilting motors (3120) are provided to independently drive each of the upper link driving shaft and the lower link driving shaft constituting the link driving shaft (3150).

This is to allow the upper link (3210) and the lower link (3220) to operate independently, thereby allowing the upper body frame (3320) and the lower body frame (3330) to tilt independently of each other.

It should be noted that the power generation and transmission structure provided inside the above gear box (3110) is only one embodiment, and various types of structures can be proposed. In addition, the idea of the present invention should be understood to include all types of transmissions that generate power from the gear box (3110) and transmit the generated power to the link drive shaft (3150).

FIG. 40 is a perspective view showing the operation of a motion control unit according to a second embodiment of the present invention, and FIG. 41 is a longitudinal sectional view of the motion control unit taken along line 41-41 of FIG. 40.

In this embodiment, an example is given in which both the upper body frame (3320) and the lower body frame (3330) are tilted.

Referring to FIGS. 40 and 41, when power is supplied to the motion generator (3100) and the tilting motor (3120) operates, the link driving shaft (3150) rotates.

When the above link drive shaft (3150) rotates, the upper link (3210) and the lower link (3220) each rotate, so that the upper body frame (3320) and the lower body frame (3330) are tilted at a predetermined angle, as shown.

In detail, the fixed link (3212) of the upper link (3210) is fixed to the bracket (3211), and the end of the movable link (3213) remains connected to the upper frame (3322).

Accordingly, when the upper link drive shaft rotates, the upper link (3210) rotates as illustrated in FIG. 41, so that the first tilting portion rotates upward from the horizontal plane by a predetermined angle. At the same time, the second tilting portion rotates upward from the plane passing through the first tilting portion by a predetermined angle.

In addition, when the lower link drive shaft rotates, the bracket (3221) and the female link (3222) rotate as one body. Then, the end of the female link (3222) rotates upward to lift the lower frame (3332). Then, the connection portion of the middle lower frame (3331) and the lower frame (3332) rises to a state as shown in FIG. 41.

Additionally, the multi-section link portion of the lower link (3220) helps both one end and the other end of the lower frame (3332) to rise.

If, in a structure with only the female link (3222), the female link (3222) rotates, it slides along the bottom surface of the lower frame (3332), thereby raising only one end of the lower frame (3332) to which the middle lower frame (3331) is connected.

In other words, the other end of the lower frame (3332) will sag downward due to gravity, or the other end of the lower frame (3332) will slide toward the fixed block (3310) while maintaining a horizontal state.

Accordingly, depending on the manufacturing conditions or the user's choice, the lower link (3220) may be designed to include only the female link (3222), or may be designed to further include a multi-section link consisting of the female link (3222), the fixed link (3223), the connecting link (3224), and the movable link (3225).

Meanwhile, when the upper body frame (3320) and the lower body frame (3330) are tilted, a gap may be created between the upper body frame (3320) and the guard frame (60), or between the lower body frame (3330) and the guard frame (60).

In addition, there is a possibility that foreign substances may enter the bed (10a) through the above gap, and a body part of a person other than the user may become caught and cause injury.

Additional barriers may be provided to prevent such problems from occurring.

The above barrier may include an upper barrier (75) connecting the upper body frame (3320) and the guard frame (60), and a lower barrier (77) connecting the lower body frame (3330) and the guard frame (60).

The above barrier may be made of a flexible fabric or elastic band, or may be made of a folded or pleated fabric that implements a function similar to the bellows of an accordion.

FIG. 42 is a partially cut-away perspective view enlarged to show a strength control unit coupled to a motion control unit according to a second embodiment of the present invention.

Referring to FIG. 42, the strength control unit (20) is defined as an assembly of a plurality of strength adjustment modules (M1), and each of the strength adjustment modules (M1) includes a module case (21) and a plurality of cushion members (90) mounted on the module case (21).

The above module case (21) may include an upper case (22) and a bottom case (23). In addition, by coupling the bottom case (23) to the cushion member mounting plate (3340), the strength control unit (20) forms one assembly with the motion control unit (300). In addition, the topper (12) is separable from the strength control unit (20).

In detail, a plurality of fastening bosses (236) may be formed at a predetermined interval on the lower surface of the bottom case (23). In addition, a plurality of fastening holes (3341) may be formed in the cushion member mounting plate (3340).

And, a fastening member (S) such as a screw can be inserted into the fastening boss (236) by penetrating the fastening hole (3341). That is, the module case (21) can be fixed to the cushion member mounting plate (3340) by the fastening member (S).

The embodiment presented in Fig. 12 is structured such that the fastening member (S) penetrates the module case (21) and is inserted into the cushion member mounting plate (332), and the present embodiment is structured such that the fastening member (S) penetrates the cushion member mounting plate (3340) and is inserted into the fastening boss (236).

FIG. 43 is a perspective view of a drying module according to a second embodiment of the present invention, and FIG. 44 is a longitudinal cross-sectional view of a bed cut along line 44-44 of FIG. 43 with a topper placed on the upper side of the drying module.

Referring to FIGS. 43 and 44, a drying module (500) according to the second embodiment of the present invention may include a blower fan (5300), a filter unit (5100) mounted on an intake port of the blower fan (5300), a supply duct (5200) connected to an outlet port of the blower fan (5300), a branch duct (5400) extending from a side of the supply duct (5200) in a direction intersecting the supply duct (5200), and a discharge duct (5500) connected to an outlet port of the branch duct (5400).

In detail, the drying module (500) may include a structure in which a suction duct is connected to the suction port of the blower fan (5300), like the drying module (50) according to the first embodiment.

In the case of the bed (10a) according to the present embodiment, since the drying module (500) is sufficiently spaced from the installation surface by the leg (70), there is a low possibility that flow resistance will occur in the process of sucking indoor air, so there is no need to provide a separate suction duct. However, in a structure where the leg (70) is excluded, the suction duct may be connected to the suction port of the blower fan (5300). In this case, the filter unit (5100) will be mounted at the inlet end of the suction duct.

It is recommended that the above blower fan (5300) be installed as far away from the user's ears as possible to minimize inconvenience in use due to fan noise. This also applies to the bed (10) according to the first embodiment.

Therefore, it is preferable that the blower fan (5300) be placed at a point adjacent to the toe frame (63) of the guard frame (60).

The above supply duct (5200) extends in the length direction of the bed (10a) from the discharge port of the blower fan (5300) and can be placed at the center of the bottom surface of the bed (10a).

The above supply duct (5200) is composed of a hard duct (5210) and a soft duct (5220), as in the previous embodiment, and can be tilted at a predetermined angle together with the motion control unit (300).

The above branch duct (5400) may be designed to extend in the width direction of the bed (10a) from the left and right sides of the above supply duct (5200) and have an end bent upward.

The discharge port of the above branch duct (5400) is connected to the center of the bottom of the discharge duct (5500), and a discharge port (5510) may be formed in a slit shape in the center of the bottom of the discharge duct (5500). The upper surface of the discharge duct (5500) may be open so that air discharged from the discharge port (5510) may hit the bottom surface of the interrupter (40).

The above discharge duct (5500) may have a predetermined width and may extend in a direction parallel to the branch duct (5400) from the upper side of the branch duct (5400). The width of the above discharge duct (550) may be designed to have a length corresponding to the width of the interrupter (40), but is not limited thereto.

Meanwhile, as shown in FIG. 13 and FIG. 44, the interrupter (40) may be composed of a body (41) and a pin (43), and a plurality of ventilation holes (44) may be formed in the body (41).

The above-mentioned plurality of ventilation holes (44) are formed in an area corresponding directly above the discharge duct (5500), so that air discharged from the discharge duct (5500) can pass through the ventilation holes (44) and be sprayed onto the topper (12).

Due to the structural characteristics of the above strength control unit (20), if the discharge duct (5500) is placed on the lower side of the module case (21), the amount of air reaching the topper (12) as the air discharged from the discharge duct (5500) spreads sideways may be significantly reduced.

Accordingly, by arranging the discharge duct (5500) below the interrupter (40) having a plurality of ventilation holes (44), most of the air discharged from the discharge duct (550) can be guided to the topper (12) by passing through the interrupter (40).

And, the air that does not pass through the interrupter (40) can spread sideways and be guided to the topper (12) through the gap formed between the intensity adjustment units (M1).

FIG. 45 is a perspective view from above of a bed according to a third embodiment of the present invention, FIG. 46 is a perspective view from below of a bed according to a third embodiment of the present invention, FIG. 47 is an exploded perspective view of a bed according to the third embodiment of the present invention, and FIG. 48 is a longitudinal cross-sectional view of a mattress set taken along line 48-48 of FIG. 45.

Referring to FIGS. 45 to 48, a bed (10b) according to a third embodiment of the present invention is characterized in that the strength control unit (20) is separated from the motion control unit (300), and the topper (12) and the strength control unit (20) are formed as a single body by the bed cover (11).

In detail, the bed (10b) may include a guard frame (60), a motion control unit (300) coupled to the guard frame (60), and a mattress set (MS) detachably mounted on the motion control unit (300). In addition, depending on design conditions, the genital bed (10b) may further include a plurality of legs (70) extending from the bottom of the four corners of the guard frame (60).

The guard frame (60), the motion control unit (300), and the drying module (500) coupled to the motion control unit (300) presented in this embodiment may have the same structure as the guard frame (60), the motion control unit (30), and the drying module (500) constituting the bed (10a) according to the second embodiment. Therefore, a duplicate description of these structures will be omitted, and the contents described in the second embodiment will be applied.

In more detail, the mattress set (MS) may include a mattress and a module mounting plate (80) on which the mattress is placed. Depending on the definition method, the mattress set (MS) may be interpreted as further including a bed cover (11) that wraps the mattress and the module mounting plate (80).

The above mattress can be defined as including the topper (12) and a strength control unit (20) on which the topper (12) is placed on the upper surface, as described in the structure of the bed (10) according to the first embodiment.

In addition, depending on the design conditions, the mattress set (MS) may further include a safety guard (13) surrounding the side of the strength control unit (20) and the module mounting plate (80). Since the safety guard (13) has already been described when describing the bed (10) according to the first embodiment, a duplicate description will be omitted.

As described above, the above strength control unit (20) is defined as including a plurality of strength control modules (M1) and a plurality of interrupters (40) arranged between the plurality of strength control modules (M1).

FIG. 49 is a perspective view of a module mounting plate constituting a mattress set of a bed according to a third embodiment of the present invention, FIG. 50 is a partial longitudinal sectional view of the module mounting plate taken along line 50-50 of FIG. 49, and FIG. 51 is a partial longitudinal sectional view of the module mounting plate taken along line 50-50 of FIG. 49 in a tilted state by a motion control unit.

Referring to FIGS. 49 to 51, the module mounting plate (80) according to an embodiment of the present invention is a portion on which a plurality of strength adjustment modules (M1) constituting the strength control unit (20) are placed. In detail, the plurality of strength adjustment modules (M1) can be fixed to the upper surface of the module mounting plate (80).

The above module mounting plate (80) can be defined as a support structure or plate structure in which a number of plates are joined to enable relative rotation, corresponding to the number of tilting parts forming the mounting frame (3300) of the motion control unit (300).

In detail, the module mounting plate (80), like the mounting frame (3300), may include an upper mounting plate (81) and a lower mounting plate (82). The upper mounting plate (81) is placed on the upper side of the upper body frame (3320), and the lower mounting plate (82) is placed on the upper side of the lower body frame (3330).

In more detail, the upper mounting plate (81) may include an upper plate (810) and a middle upper plate (820) having one end rotatably connected to an end of the upper plate (810). The upper plate (810) is placed on the upper side of the second tilting portion, and the middle upper plate (820) is placed on the upper side of the first tilting portion.

In addition, the lower mounting plate (82) may include a middle lower plate (830) having one end rotatably coupled to the other end of the middle upper plate (820), and a lower plate (840) having one end rotatably coupled to the other end of the middle lower plate (830).

The above middle lower plate (830) is placed on the upper side of the third tilting part, and the above lower plate (840) is placed on the upper side of the fourth tilting part.

Each of the above plates (810, 820, 830, 840) is formed with a plurality of fastening holes (811, 821, 831, 841). With the plurality of strength adjustment modules (M1) mounted on the module mounting plate (80), a plurality of fastening members including screws penetrate the fastening holes (811, 821, 831, 841) and the strength adjustment modules (M1).

For example, the structure described in Fig. 42 can be applied. That is, in a state where a fastening boss extending from the lower surface of the bottom case (23) is inserted into the fastening holes (811, 821, 831, 841), a fastening member (S) can be inserted into the fastening hole.

Meanwhile, as shown in FIGS. 50 and 51, adjacent plates are flexibly connected by one or more joint plates (85) and multiple joint hinges (86).

By means of the above-mentioned plurality of joint plates (85) and joint recognition (86), the plurality of plates can bend while maintaining a state of being connected to each other.

For example, a plurality of extensions (832, 842) are protruded from each of the facing ends of the adjacent plates, and the plurality of extensions (832, 842) are spaced apart from each other at a certain interval in the width direction of the module mounting plate (80).

In addition, when the facing ends of two adjacent plates are brought into close contact, the extensions protruding from one end of the two adjacent plates and the extensions protruding from the other end are arranged alternately in the width direction of the module mounting plate (80). That is, the extensions extending from the sides of the two plates are interlocked with each other like the meshing structure of gears.

In this state, the joint hinge (86) penetrates the extensions, so that the two contacting plates can rotate relative to each other.

In this way, when two plates are directly connected by a joint hinge (86), there is a disadvantage that the degree of freedom of bending of the plates is low. Here, the degree of freedom of bending of the plates can be defined as the radius of curvature of the curve (see the dotted line in Fig. 51) connecting the two plates when the two plates are connected to each other in a tilted state.

For example, a high degree of bending freedom may mean that the radius of curvature of the curve connecting the two plates is large. In other words, it can be understood that a high degree of bending freedom means that the plate can bend more smoothly.

When a joint plate (85) is interposed between two adjacent plates, the degree of freedom in bending of the plates can be increased. In addition, it can be said that the degree of freedom in bending of the plates increases as the number of intervening joint plates (85) increases.

In this embodiment, it is described that three joint plates (85) are interposed between two adjacent plates, but this is not limited thereto, and an appropriate number may be selected according to the maximum tilting angle of the tilting portion.

At both ends of the joint plate (85), a plurality of grooves are formed to accommodate a plurality of extensions (832, 842) protruding from the side surfaces of the plates. Accordingly, the side surface of the joint plate (85) and the side surface of the plate constituting the module mounting plate (80) are engaged in a gear-joint manner. Then, when the joint hinge (86) in the shape of a circular bar penetrates the extensions (832, 842) and the groove of the joint plate (85), the joint hinge (86) functions as a rotation axis of the plate and the joint plate (85).

Here, the portion where two adjacent plates are connected by one or more joint plates (85) may be defined as a joint bending portion. That is, the joint bending portion may be defined as including one or more joint plates (85) and one or more joint hinges.

FIG. 52 is an exploded perspective view of a mattress set and a drying module constituting a bed according to a third embodiment of the present invention, and FIG. 53 is a longitudinal cross-sectional view of the bed according to the third embodiment of the present invention taken along line 53-53 of FIG. 46.

Referring to FIG. 52 and FIG. 53, a plurality of communication holes (111) are formed on the bottom surface of the mattress set (MS) so that air supplied from the drying module (500) can be guided toward the topper (12).

The above-mentioned plurality of communication holes (111) may be formed at a point corresponding to the lower side of the joint bending portion. The above-mentioned communication holes (111) may be formed by cutting a portion of the lower surface of the bed cover (11) that wraps the topper (12) and the strength control unit (20).

In addition, discharge ducts (550) constituting the drying module (500) may be positioned directly below the ventilation holes (111). That is, the number of the communication holes (111) may be provided corresponding to the number of the discharge ducts (550).

When the above mattress set (MS) is installed on the motion control unit (300), the communication hole (111) and the discharge duct (550) are aligned in the vertical direction, so that air discharged from the discharge duct (550) can be supplied into the inside of the mattress set (MS) through the communication hole (111).

The air discharged from the discharge duct (550) can rise through the gaps formed in the joint bending portion and be guided to the interrupter (40). Therefore, as shown in Fig. 44, if a plurality of ventilation holes (44) are formed in the interrupter (40), the air can be easily transferred to the topper (12).

The above blower fan (5300) can be placed under the user's feet when the user is lying down, thereby minimizing the phenomenon of the user not being able to get a good night's sleep due to fan noise.

In addition, the distance from the inner surface of the head frame (62) to the inner surface of the toe frame (63) may be designed to be longer than the length of the mattress set (SM). Then, when the mattress set (SM) is placed on the motion control unit (300), the upper part of the toe frame (63) becomes higher than the bottom part of the mattress set (SM).

As a result, when the upper body frame (3320) is tilted upward, the rear end of the mattress set (MS), i.e., the side adjacent to the user's feet, is caught on the toe frame (63), thereby preventing the mattress set (MS) from slipping on the motion control unit (300).

Alternatively, as described above, a detachment prevention member (68) may be formed to protrude from the top of the tow frame (63).

In addition, by means of the support leg (70), there is no need for a separate suction duct to extend horizontally to the suction port of the blower fan (5300).

Figure 54 is a perspective view of the motion control unit showing the upper body frame in a tilted state.

Referring to FIG. 54, as described in the second embodiment, the upper body frame (3320) and the guard frame (60) may be connected by an upper blocking film (75), and the lower body frame (3330) and the guard frame (60) may be connected by a lower blocking film (77).

By means of the above-mentioned barriers (75, 77), the space between the above-mentioned fixing frame (3300) and the above-mentioned guard frame (60) is not exposed to the outside, and the phenomenon of foreign substances getting caught can be prevented.

In addition, a part of the supply duct (5200) that tilts as one body with the upper body frame (3320) and the lower body frame (3330) is made of a rigid duct (5210), and another part is made of a soft duct (5220), so that it can bend together with the upper body frame (3320) and the lower body frame (3330).

FIG. 55 is a perspective view of a strength control module according to an embodiment of the present invention in which a buffer plate is coupled to the upper surface of a cushion member, and FIG. 56 is a bottom perspective view of the buffer plate.

Referring to FIGS. 55 and 56, the buffer plate (700) is provided to prevent the back or waist from being compressed by the cushion members (90) when the topper (12) is pressed when the user lies down on the bed.

In detail, the topper (12) may be a memory foam material that is flattened by a vertical load and then returns to its original state when the load is removed.

If the thickness of the topper (12) is too thin or the user's weight is greater than average, the compression amount of the topper (12) is large, so that the upper surface of the cushion member (90) presses on the user's back or waist, causing the user to feel discomfort.

In particular, since there is a gap between the plurality of cushion members (90), if the user lies down for a long time, the user's back or waist may be pressed against the cushion members (90), causing discomfort.

To prevent this phenomenon, a buffer plate (700) may be interposed between the topper (12) and the cushion member (90).

The above buffer plates (700) can be arranged one by one for each strength control module (M1) in one row.

In detail, the length of the buffer plate (700) can be designed to correspond to the width of the topper (12), and the width of the buffer plate (700) can be designed to correspond to the width of the strength control module (M1). Here, the width of the buffer plate (700) refers to the short side, and the length refers to the long side.

In addition, the buffer plate (700) may include a buffer body (710) having a predetermined thickness, width, and length, and a plurality of cushion member receiving grooves (711) formed on the bottom surface of the buffer body (710).

The upper portions of the cushion members (90) are accommodated in the above-described plurality of cushion member receiving grooves (711). Accordingly, even if the mattress set (SM) is tilted by the motion control unit (300), the phenomenon of adjacent cushion members colliding with or bending each other can be minimized. That is, the cushion member receiving groove (711) can be understood to perform the same function as the cushion member receiving groove (123) described in FIGS. 5 and 6.

Hereinafter, a method for providing an optimal sleeping state or optimal sleeping posture by automatically adjusting the cushion strength of a strength control unit by monitoring the user's sleeping posture using a bed according to an embodiment of the present invention is described.

FIG. 57 is a drawing showing a point where the weight of a user is concentrated when lying upright on a pressure sensing sheet provided on a bed according to an embodiment of the present invention, and FIG. 58 is a drawing showing a point where the weight of a user is concentrated when lying on the side on a pressure sensing sheet.

Referring to FIGS. 57 and 58, the bed (10, 10a, 10b) according to an embodiment of the present invention may further include a pressure sensing sheet (PA) that senses the user's body pressure.

In detail, the pressure sensing sheet (PA) may include a fiber-type pressure sensor that is thin and highly flexible like cloth.

For example, the pressure sensing sheet (PA) may be formed of a first layer including a plurality of first lines arranged in a horizontal direction and usable as electrodes, a second layer including a plurality of second lines arranged in a vertical direction and usable as electrodes, and an intermediate layer interposed between the first layer and the second layer to prevent the first lines and the second lines from directly contacting each other.

The above intermediate layer may include a conductive fabric whose resistance value changes according to vertical pressure. In addition, a point where the first line and the second line intersect becomes a pressure measurement point.

However, it should be noted that not only a pressure-sensing sheet having a structure as described above, but also any type of fiber-type pressure-sensing sensor capable of measuring a user's body pressure can be employed in the bed according to an embodiment of the present invention.

This is because the idea of the present invention is not the fiber-type body pressure detection sensor itself, but rather a bed characterized in that the body pressure distribution is detected using the fiber-type body pressure detection sensor, and the cushion strength of the strength control module (M1) located at the part where the body pressure is concentrated can be independently controlled based on the result.

The above pressure sensing sheet (PA) can be attached to the upper surface of the topper (12), or alternatively, it can be embedded in the interior of the topper (12).

In addition, a control box may be mounted on one side of the guard frame (60), and a microcomputer defined as a control unit may be installed inside the control box.

Then, the body pressure value measured from the pressure detection sheet (PA) (or body pressure detection sensor) is transmitted to the control unit, and the control unit processes the collected body pressure data through a sampling and filtering process.

Additionally, the control unit can visualize the pressure distribution in each area of the user's body based on the processed data and output it to the display unit.

As shown in FIG. 57 and FIG. 58, depending on the posture in which the user is lying, the body weight may be concentrated on a specific part of the body (P1 to P5). Then, the body pressure of the part where the weight is concentrated increases.

The above control unit can increase the cushion strength by operating a strength control module that supports a body part where body weight is concentrated and body pressure increases.

Meanwhile, the body pressure distribution image as shown in FIG. 57 and FIG. 58 can be displayed on the display unit of the controller connected to the control unit by wire or wirelessly.

Below, a flow chart will be used to describe in detail a method for automatically or manually adjusting the cushion strength of a strength adjustment module located at an area where body weight is concentrated.

FIG. 59 is a flowchart showing a method for controlling the cushion strength of a bed according to the first embodiment of the present invention, and FIGS. 60 to 63 are display screens of a pressure regulator shown in the process of performing the method for controlling the cushion strength of a bed according to the first embodiment of the present invention.

A method for controlling the cushion strength of a bed according to a first embodiment of the present invention is characterized in that a control unit of the bed automatically adjusts the cushion strength of the bed to a uniform level based on body pressure distribution data transmitted from the body pressure detection sensor described above.

In other words, the control unit automatically controls the cushion strength of the strength adjustment module in the area where body pressure is concentrated so that the cushion strength in the area pressed by the user is uniformly maintained at a level within the set range.

Referring to Figure 59, first, the power of the bed (10, 10a, 10b) is turned on by the user (S110). At this time, it is assumed that the user or someone other than the user is lying on the bed (10, 10a, 10b).

In detail, it can be understood that powering on the bed includes powering on at least one of the motion control unit (30, 300), the pressure detection sheet (PA), the pressure regulator (800: described later), and the control box provided in the bed.

In this state, the user selects the automatic mode by operating the body pressure regulator (800) in the form of a remote controller that is wirelessly connected to the control unit of the bed (10, 10a, 10b) (S120). It is obvious to those skilled in the art that a microcomputer is mounted on the PC of the control box and that the microcomputer functions as a control unit.

Referring to FIG. 60, the pressure regulator (800) may include a main body (8100), a power button (8200) provided on the front of the main body (8100), and a display (8300) provided on the front of the main body.

The above-mentioned pressure regulator (800) may be provided with a plurality of mechanical input buttons, or, like a mobile phone, a plurality of input buttons may be provided in the form of touch buttons on the display (8300). The power button may be a mechanical button that the user must press with a certain amount of force.

For example, when a user presses the power button (8200), the display (8300) is activated, and the pressure regulator (800) and the control unit become communicable. Then, an input button image that the user can select is displayed on the display (8300).

For example, as illustrated, when the display (8300) is activated, a touchable menu button (8310) that allows selection of an automatic mode and a manual mode may be displayed on one side of the screen.

In this state, the user can touch the automatic mode menu button to start the automatic mode, and the automatic mode command is transmitted to the control unit through the short-range wireless communication module built into each of the pressure regulator (800) and the control box. The short-range wireless communication module may include Wi-Fi, Bluetooth, Zigbee, etc. Hereinafter, the control unit equipped in the control box of the bed is defined as the main control unit.

When the automatic mode command is received by the main control unit, the control unit transmits a pressure detection command to the control unit of the pressure detection sheet (PA). Then, a pressure scanning process for detecting pressure at a plurality of pressure detection points formed on the pressure detection sheet (PA) is performed (S130). Here, the control unit of the pressure detection sheet (PA) is defined as a sub-control unit.

The pressure scanning operation is performed repeatedly a set number of times within a set time, thereby extracting multiple measurement data from the same point.

Here, in order to determine that a normal pressure scan has been performed, the pressure values detected at the same point must remain within the set range.

For example, when a person lying in bed tosses and turns, the range of fluctuations in the pressure values detected at the same pressure detection point becomes very large, and in this state, it is impossible to obtain an accurate pressure value at that point.

Therefore, in the body pressure scan process, a process of determining whether the fluctuation range of a plurality of body pressure values detected at a certain time interval at the same point is outside a set range, i.e., a process of determining whether the scan is performed normally, can be performed in the sub-control unit (S140).

If the body pressure is detected a set number of times at a set time interval and the fluctuation amount of the body pressure values detected at the same point is within the set range, the sub-control unit determines that the body pressure scan process is performed normally. On the other hand, if the fluctuation amount of the body pressure values detected at the same point is outside the set range, the sub-control unit determines that the body pressure scan process is performed abnormally.

If it is determined that the above body pressure scan process is not performed normally, the sub-control unit suspends the body pressure detection operation for a certain period of time and waits (S141), and when the certain period of time has elapsed, the body pressure scan process (S130) is resumed.

If it is determined that the range of variation of the pressure values detected at the same point is within a set range, the average value of the pressure values detected at that point can be determined as the pressure value at that point.

Referring to Figure 61, when the automatic mode is selected and the pressure scan starts, information indicating that the pressure process is currently in progress is output on the display (8300) of the pressure regulator (800).

The above information may be text, images, videos, or a combination thereof.

If the pressure scan process and the waiting process for a certain period of time are performed at least once and it is determined that the pressure scan has been performed normally, the sub-control unit transmits the normally detected pressure values to the main control unit (S150).

In the above main control unit, the body pressure values transmitted from the sub control unit are processed and analyzed to extract body pressure by body area (S160).

And, in the main control unit, a body pressure distribution image is generated using the extracted body pressure values for each body area and transmitted to the body pressure controller (800). The transmitted body pressure distribution image can be output to the display (8300) of the body pressure controller (800) (S170).

Referring to FIG. 62, a body pressure distribution image detected by a body pressure detection sheet (PA) is displayed on a display (8300) of a body pressure controller (800), and the body pressure distribution image can be expressed as a color image.

For example, points where body weight is concentrated and body pressure is measured high may be displayed in a color closer to red, while points where body pressure is measured relatively low may be displayed in a color closer to blue or green.

Referring to the dotted line portion of the body pressure distribution image shown in Fig. 62, it can be confirmed that high body pressure was detected at the user's head, shoulders, and hip points when the user was lying straight.

In the main control unit, based on the extracted body area pressure data, it is determined whether there is an area where body pressure is concentrated compared to other areas (S180).

If it is determined that there is a region where a body pressure value exceeding the set range is detected, i.e. a body pressure concentration region, the main control unit operates the strength control unit (20) to increase the cushion strength at the corresponding point (S181).

In detail, referring to FIG. 21 and FIG. 27, the main control unit generates a control signal to the drive motor (24) of the strength control unit (20), so that the drive motor (24) rotates in one direction. The rotational power of the drive motor (24) is transmitted to the drive gear (251) and the transmission gear (990), so that the inner case (92) of the cushion member (90) rises.

As the inner case (92) rises, the inner spring (94) also rises, thereby increasing the cushion strength of the cushion member (90). In addition, as the cushion strength of the cushion member (90) increases while the user is lying down, the body pressure value detected in the body pressure concentration area decreases.

In the above main control unit, if the pressure value newly detected in the pressure concentration area enters the set range through the operation of the intensity control unit (20), it can be determined that the pressure is distributed evenly.

When the pressure adjustment in the pressure concentration area is completed through this method, the currently set cushion strength is stored and maintained (S190).

Referring to FIG. 63, when the pressure adjustment is completed, a message may be displayed on the display (8300) of the pressure regulator (800) indicating that the pressure adjustment is completed. In addition, a message may be displayed instructing the user to touch the manual mode button if they wish to manually readjust the pressure adjustment.

FIG. 64 is a flowchart showing a method for controlling the cushion strength of a bed according to the second embodiment of the present invention, and FIGS. 65 and 66 are display screens of a pressure regulator shown in the process of performing the method for controlling the cushion strength of a bed according to the second embodiment of the present invention.

A method for controlling the cushion strength of a bed according to a second embodiment of the present invention is characterized in that the manual mode is selected after the automatic cushion strength adjustment described above, or the manual mode is selected by the user from the beginning, and the user directly selects and determines the cushion strength of the bed.

Referring to Fig. 64, first, the power of the bed (10, 10a, 10b) is turned on by the user (S110). If the user selects the manual mode again after the automatic mode is completed, the process of turning on the power of the bed is omitted.

In detail, when the bed is powered on and the manual mode is selected by the user (S220), a body pressure detection command is transmitted from the main control unit to the body pressure detection sheet (PA) as in the previous embodiment.

And, the process of scanning body pressure on the body pressure detection sheet (PA) (S230), the process of determining whether the scan is being performed normally (S240, S241), the process of transmitting body pressure detection data to the main control unit (250), the process of extracting body pressure by body area through data processing (S260), and the process of forming a body pressure distribution image are performed in the same manner as the control method according to the first embodiment, so a duplicate description thereof is omitted.

In this embodiment, the output of the body pressure distribution image to the display (830) of the body pressure regulator (800) is the same as the control method according to the first embodiment. However, under the manual mode, there is a difference in that the body pressure distribution image is output as a part of the body pressure control screen of the display (8300).

When the body pressure adjustment screen is output on the display (8300) (S270), a step of selecting a body pressure adjustment position for changing the body pressure (S280) and a step of selecting the cushion strength at the selected position (S290) are sequentially performed.

And, when the body pressure control completion command is input (S300), the manual control mode is terminated. Here, it is noted that the body pressure control completion command can be used with the same meaning as the cushion strength control completion command.

Referring to FIG. 65, the display (8300) of the pressure regulator (800) may output a control area search screen (8400) and a control area menu screen (8500) together.

The above-mentioned adjustment part menu screen (8500) may display an adjustment part change button (8510) used by the user to select a cushion strength adjustment part, a cushion strength change button (8520) used to newly set the cushion strength of the cushion strength adjustment part, and a completion button (8530) used to input a command to complete the cushion strength change process.

The above-mentioned control portion change button (8510) may include an upper movement button (8510a) and a lower movement button (8510b), and the above-mentioned cushion strength change button (8520) may include a cushion strength increase button (8520a) and a cushion strength decrease button (8520b).

Meanwhile, on the control area search screen (8400), a body pressure distribution image (8410) divided into multiple areas from head to toe is output, and a cursor (8420) can be positioned on one edge of the control area search screen (8400).

When the user touches the adjustment area change button (8510) to select a point at which he or she wishes to change the cushion strength of the strength adjustment module (M1) constituting the strength control unit (20), the cursor (8420) moves upward or downward on the screen.

For example, if the user briefly touches the upper movement button (8510a) several times or presses it for a long time, the cursor (8420) moves upward stepwise or moves upward quickly. Through this movement, the cursor (8420) can be positioned at a point where body pressure is concentrated.

In addition, when the cursor (8420) is located at a point where body pressure is concentrated, the user can increase the cushion strength of the corresponding point by operating the cushion strength change button (8520). For example, when the cushion strength increase button (8520a) is pressed multiple times or pressed for a long time, the cushion strength displayed in the area where the cursor (8420) is located is changed. As illustrated, it can be seen that the cushion strength of the point where the cursor (842) is located is changed to "strong" and the cushion strength of other areas is maintained at "weak".

Here, after changing the cushion strength, you can hold down the cushion strength change button for a set amount of time so that the change is determined as the value.

In this way, when the cushion strength adjustment portion is moved and the cushion strength is changed in the pressure concentration area, the process may return to step S230 of FIG. 64 and the pressure detection step may be repeatedly performed.

And, through repeated execution, the modified body pressure distribution image is displayed again on the control area search screen (8400), so that the user can re-adjust the cushion strength of the strength control module at the point determined as the body pressure concentration area.

When this process is repeated multiple times, the pressure concentration area is removed and a pressure distribution image in which the pressure is evenly distributed is displayed on the control area search screen (8400), the user touches the completion button (8530) to end the pressure adjustment process. Then, a pressure adjustment completion command can be transmitted to the main control unit.

When the cushion strength adjustment process is completed, a message indicating that the cushion strength change process is completed may be output on the display (8300) of the pressure regulator (800), as shown in FIG. 66. Furthermore, when the cushion strength is desired to be automatically or manually changed, a message instructing the user to touch a button for selecting the desired mode may be displayed together.

This method has the advantage of providing users with not only optimal sleeping conditions but also optimal sleeping postures.

Claims (16)

A method for controlling a bed, comprising: a topper that a user's body touches; a plurality of cushion members provided on a lower side of the topper; a plurality of strength adjustment modules including a drive motor that generates a driving force for adjusting the cushion strength of the plurality of cushion members; and a gear assembly that transmits the rotational force generated from the drive motor to the cushion members; a fibrous body pressure detection sheet provided on an upper surface of the topper and detecting the body pressure of a lying user; and a control box having a main control unit that controls the operation of the body pressure detection sheet and the strength adjustment module.
A step in which power is supplied to the bed, the strength control module, the pressure sensing sheet, and the main control unit are turned on; and
It includes a step of selecting an operation mode for adjusting the cushion strength of the cushion members by touching an operation button displayed on a display part of a pressure regulator that is wirelessly connected to the main control unit.
The above driving modes include automatic mode and manual mode,
When the above automatic mode is selected by the user,
A step in which a pressure detection command is transmitted from the main control unit to the pressure detection sheet, and the body pressure of each body area of a user lying on the pressure detection sheet is scanned;
A step in which scanned body pressure data is transmitted to the main control unit to identify the body pressure concentration area;
A step in which one or more intensity control modules located in the above pressure concentration area are selected;
A step in which a cushion strength adjustment command is transmitted from the main control unit to one or more selected strength adjustment modules;
A step in which the drive motor of the selected intensity control module operates according to the transmitted cushion intensity control command, thereby completing pressure control in the pressure concentration area through intensity control of the cushion member; and
A step of displaying a message indicating completion of pressure control and a manual mode button on the display of the pressure controller;
When the manual mode is selected by the user from the beginning while the power of the bed is turned on, the step of scanning the body pressure for each body area from the body pressure scan step is performed in the same way as the automatic mode.
When the manual mode is selected from the beginning and the body pressure scan for each body area is completed, or when the automatic mode is selected and the body pressure adjustment in the body pressure concentration area is completed and the manual mode button is selected to change the current cushion strength, the manual strength adjustment module process by the user is performed.
The above manual strength control module process is:
A step of outputting an adjustment area menu screen, in which a pressure distribution image divided into a plurality of areas, a control area search screen displaying a cursor for searching a cushion strength adjustment area, a control area change button for moving the position of the cursor, a cushion strength change button for changing the cushion strength, and a complete button are displayed, to the display of the pressure regulator;
A step of moving the cursor upward or downward from the edge of the pressure distribution image by touching the above-mentioned control region change button;
A step in which the cushion strength change button is touched while the cursor is located at a point determined to be a pressure concentration area;
A bed control method including a step of adjusting the cushion strength of a strength adjustment module located in the body pressure concentration area by touching the cushion strength change button. In paragraph 1,
A bed control method characterized in that, in the step of scanning the body pressure, a step of determining whether the body pressure scan is performed normally is performed, which determines whether the fluctuation range of a plurality of body pressure values detected at a certain time interval at the same point is outside a set range. In the second paragraph,
A bed control method characterized in that the sub-control unit provided in the above-mentioned body pressure detection sheet suspends the body pressure scan step for a certain period of time when it is determined that the fluctuation range of a plurality of body pressure values detected at the same point is outside a set range. In the third paragraph,
A bed control method characterized in that the sub-control unit determines, when it is determined that the fluctuation range of a plurality of body pressure values detected at the same point is within a set range, an average value of the body pressure values detected at the point as the body pressure value at the point. In paragraph 4,
The above main control unit extracts body pressure values for each body area based on the body pressure values transmitted from the sub control unit,
The pressure distribution image is generated using the extracted pressure values.
A bed control method characterized by transmitting the generated body pressure distribution image to the body pressure controller. delete In paragraph 5,
In the above automatic mode,
A bed control method, characterized in that, according to the above cushion strength control command, the cushion strength of the strength control module located in the body pressure concentration area increases more than the cushion strength of the strength control module located in an area other than the body pressure concentration area. In paragraph 7,
A bed control method characterized in that, when the above cushion strength adjustment process is completed, a cushion strength adjustment process for determining whether a body pressure concentration area exists from a process of scanning body pressure is repeatedly performed. In Article 8,
A bed control method characterized in that, through at least one cushion strength adjustment process, when the difference between the body pressure in the pressure concentration area and the body pressure in an area other than the pressure concentration area falls within a set range, the finally set cushion strength is maintained and stored. delete delete delete delete In paragraph 1,
In the above manual mode,
When the cushion strength change is completed by the operation of the strength control module located in the pressure concentration area,
The auto mode button and the manual mode button are displayed on the display of the pressure regulator along with a message asking whether to change the cushion strength.
When the above automatic mode button is touched, the process below the pressure scan step is automatically repeated.
A bed control method, characterized in that when the manual mode button is touched, a new body pressure distribution image obtained as a result of repeated execution is displayed on the control area search screen. In Article 14,
A bed control method characterized in that, while the new body pressure distribution image is displayed on the adjustment area search screen, a process of adjusting the cushion strength by operating the adjustment area change button and the cushion strength change button can be repeatedly performed. In Article 15,
A bed control method characterized in that when the completion button is touched while the new body pressure distribution image is displayed on the adjustment area search screen, the cushion strength adjustment process is terminated.

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