JP2006141496A - Bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a raisable-back bed easy to separate from the front of the bed for a user without a sitting-down posture on a bed side in a raised-back state. <P>SOLUTION: In the bed 1, a back support frame 6 where the back is raised by a back raising mechanism 5 is disposed on a lifting frame 4 that is lifted up and down to a bed body 2 by a lifting mechanism. A waist part support frame 7 is disposed on the lifting frame 4. A housing mechanism 10 for housing a leg part support frame 8 is provided below the waist part support frame 7. When the leg part support frame 8 is housed below the waist part support frame 7, the lifting mechanism 3 is actuated to lift up the lifting frame 4, forming a space below the waist part support frame 7. When the space is formed, the housing mechanism 10 is actuated to move a slide frame 9 on which the leg part support frame 8 is disposed to a bed body 2, thereby housing the leg part support frame 7 into the space formed below the waist part support frame 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bed that can be raised up.

  To date, various types of beds that can be raised up have been proposed. Among them, the bed shown in FIG. 7 raises the back and the leg panel is pivotally attached to the thigh panel so that the leg panel can be changed from a horizontal state to a suspended state. Therefore, the form can be changed between a bed state and a sofa state (for example, see Patent Document 1).

In this bed, the leg panel is configured to rotate downward as the back is raised, and the bed can take the form of a sofa. That is, in this bed, without changing the direction of the body, there is an effect that it can be automatically performed by the operation on the bed side from the state of lying on the bed to the state of sitting on the sofa, and it is easy to stand up (get out of bed). . However, in order to ease the sitting position in the sofa state, it is necessary to make the thigh panel approximately the same size as the length from the hip to the knee. Then, if the leg panel does not have a length equal to or longer than the length below the knee, there is a disadvantage that the leg protrudes from the bed when lying on the bed. Therefore, it becomes a large leg panel, and when the user sits down, the user's foot does not reach the floor.
Japanese National Patent Publication No. 9-508041

  In view of the above circumstances, an object of the present invention is to provide a bed that can be easily lifted from the front of the bed without taking an end sitting position on the side of the bed in a back-upable bed.

  According to the first aspect of the present invention, an elevating mechanism for elevating the elevating frame with respect to at least the bed body, a back raising mechanism for elevating a back support frame disposed on the elevating frame, and the elevating frame are disposed on the elevating frame. In the bed having a storage mechanism for storing the leg support frame below the waist support frame, when the leg support frame is stored below the waist support frame, the lifting mechanism is operated to raise the lifting frame, A space is formed below the waist support frame, and the storage mechanism is operated to move the sliding frame on which the leg support frame is disposed with respect to the bed body, thereby lowering the waist support frame. The leg support frame is stored in the formed space.

According to the first aspect of the present invention, when the leg support frame is stored below the waist support frame, the lift mechanism is operated to raise the lift frame, thereby forming a space below the waist support frame. I did it. Then, by operating the storage mechanism and moving the sliding frame on which the leg support frame is disposed with respect to the bed main body, the leg portion is formed in the space portion formed below the waist support frame. The support frame was stored.
According to this, this bed is configured to form a space for accommodating the leg support frame by raising the elevating frame by the elevating mechanism, so that the height of the floor in the bed state of the bed is increased. The thickness can be lowered. Further, the height of the waist support frame when the lifting frame is raised by the lifting mechanism can be set to a height that allows the user who is lying on the bed to easily get out of bed.
In addition, this bed can accommodate the leg support frame below the waist support frame, so that when the leg support frame is stored below the waist support frame, an open space can be formed in front of the bed, It is possible to secure a space for a user who is lying on the bed to get out of bed.
Furthermore, this bed can change the form of the bed from the bed state to the sofa state by raising the back support frame with the back raising mechanism when the leg support frame is stored below the waist support frame. In addition, the user who is lying on the bed can sit on without changing the direction of the body, and the user can easily get out of the front of the bed without taking an end sitting position on the side of the bed.

  In the bed, a back support frame that is raised by a back raising mechanism is disposed on a lifting frame that is raised and lowered by the lifting mechanism. Further, a waist support frame is disposed on the lifting frame. Further, a storage mechanism for storing the leg support frame is provided below the waist support frame. Then, when the leg support frame is stored below the waist support frame, the lifting mechanism is operated to raise the lift frame, thereby forming a space below the waist support frame. When the space portion is formed, the storage mechanism is operated, and the sliding frame on which the leg portion support frame is disposed is moved with respect to the bed body, whereby the waist portion is formed below the waist support frame. The leg portion support frame is accommodated in the space portion.

According to this, this bed is configured to form a space for accommodating the leg support frame by raising the elevating frame by the elevating mechanism, so that the height of the floor in the bed state of the bed is increased. The thickness can be lowered. Furthermore, even if the user who lies on the bed falls from the floor to the floor, the user can be prevented from being injured as much as possible, and a sense of security can be given to the user. Further, the height of the waist support frame when the lifting frame is raised by the lifting mechanism can be set to a height that allows the user who is lying on the bed to easily get out of bed.
In addition, this bed can accommodate the leg support frame below the waist support frame, so that when the leg support frame is stored below the waist support frame, an open space can be formed in front of the bed, It is possible to secure a space for a user who is lying on the bed to get out of bed.
Furthermore, this bed can change the form of the bed from the bed state to the sofa state by raising the back support frame with the back raising mechanism when the leg support frame is stored below the waist support frame. In addition, the user who is lying on the bed can sit on without changing the direction of the body, and the user can easily get out of the front of the bed without taking an end sitting position on the side of the bed.

  One embodiment of a bed concerning the present invention is described based on a drawing. FIG. 1 is a side view showing the bed state of the bed. FIG. 2 is an explanatory view showing the structure of the bed. FIG. 3 is a perspective view showing the configuration of the bed. FIG. 4 is an explanatory diagram showing the configuration of the amplification unit. FIG. 5 is a side view showing a state in which the elevating mechanism is operated. FIG. 6 is a side view showing the sofa state of the bed.

  The bed 1 includes a bed main body 2 installed on the floor FL, an elevating frame 4 that can be moved up and down by an elevating mechanism 3 with respect to the bed main body 2, and a rotating frame 4. And a back support frame 6 that supports the back of the user who is supine on the bed 1 that is raised by the back raising mechanism 5 in accordance with the operation of the lifting mechanism 3, and the use that is disposed on the lifting frame 4. A sliding frame in which a lumbar support frame 7 for supporting a person's waist and a leg support frame 8 for supporting a user's leg that is slidable back and forth with respect to the bed body 2 are disposed. 9 and a storage mechanism 10 for sliding the sliding frame 9 back and forth.

First, the bed body 2 will be described.
As shown in FIG. 2, the bed main body 2 has pipe-shaped main girders 2b, 2b fixed to the upper ends of the installation members 2a, 2a,... And a connecting girder 2c between the rear portions of the main girders 2b, 2b. Are fixed to each other so as to have a substantially inverted U shape in plan view.

Next, the elevating frame 4 disposed so as to be movable up and down with respect to the bed body 2 and the elevating mechanism 3 for elevating the elevating frame 4 will be described.
First, as shown in FIG. 2, the elevating frame 4 has bearing plates 4b, 4b,... Fixed to the front portions of the main girders 4a, 4a and the lower surface of the intermediate portion, and the main girders 4a, 4a. The connecting girders 4c and 4c are fixed between the front part and the middle part, and further, the horizontal girder 4d is fixed between the rear part, and is configured in a substantially rectangular shape in plan view. In addition, as shown in FIG. 3, the lifting frame 4 is provided with fixtures 7a, 7a provided on both sides of the support frame 7 with the waist support frame 7 having a substantially rectangular shape in plan view. Are fixed to the front upper surfaces of the main girders 4a and 4a. In addition, a plurality of reinforcement beams 7b and 7b are fixed inside the waist support frame 7, and a plurality of stay members (not shown) are fixed.

Next, as shown in FIG. 2, the elevating mechanism 3 includes a rotating unit 11 having rotating plates 11b and 11b fixed to both ends of a cross beam 11a, and a rotating plate 11b of the rotating unit 11. It is comprised from the subrotation plate 12 and 12 of the substantially same shape as 11b, and the actuator 13 which can be extended-contracted suitably. More specifically, shaft members 14, 14 are provided with shaft members 14, 14 between the upper side of the rotation plates 11 b, 11 b of the rotation unit 11 and the bearing plates 4 b, 4 b provided at the intermediate portions of the main girders 4 a, 4 a of the elevating frame 4. The bearing plates 2d and 2d provided on the lower side of the rotating plates 11b and 11b and the lower surface of the main girder 2b and 2b of the bed main body 2 are pivotally connected by shaft members 15 and 15, respectively. ing. Further, the upper side of the driven rotary plates 12 and 12 and the bearing plates 4b and 4b provided on the front portions of the main girders 4a and 4a of the elevating frame 4 are pivotally connected by shaft members 16 and 16, respectively. The lower side of the sub-rotating plates 12 and 12 and the bearing plates 2e and 2e provided on the lower surface of the front portions of the main girders 2b and 2b of the bed body 2 are pivotally connected by shaft members 17 and 17, respectively. That is, a parallel link is formed between the bed body 2 and the elevating frame 4 by the rotating unit 11 and the follower rotating plates 12 and 12. In addition, the front portion of the actuator 13 is pivotally connected to a fixture 11c provided in the middle portion of the cross beam 11a of the rotating unit 11, and the rear portion of the actuator 13 is the middle portion of the connecting girder 2c of the bed main body 2. The elevating mechanism 3 is configured by being pivotally connected to a fixture 2f provided on the upper side.
When the elevating mechanism 3 configured in this way rotates the rotating unit 11 about the shaft members 15 and 15 by contracting the actuator 13, the driven plates 12 and 12 are also connected to the shaft members 17 and 15. The lift frame 4 is turned upward about the center 17 so as to be lifted while maintaining a substantially horizontal state (see FIGS. 1 and 5).

Next, the sliding frame 9 that is slidable back and forth with respect to the bed body 2 will be described.
As shown in FIG. 2, the sliding frame 9 has wheels 9b and 9b attached to the lower surfaces of the front portions of the sliding girders 9a and 9a, and a connecting girder 9c between the front portions of the sliding girders 9a and 9a. It is fixed and has a substantially U-shape in plan view. Further, the leg support frame 8 having a substantially rectangular shape in plan view is fixed to the sliding frame 9 on mounting plates 9d and 9d provided on the connecting beam 9c. A plurality of reinforcing beams 8a, 8a, 8a are fixed inside the leg support frame 8, and a plurality of stay members (not shown) are fixed.
The sliding frame 9 configured as described above is arranged so that the rear portions of the sliding girders 9a and 9a are inserted into the main girders 2b and 2b of the bed main body 2 so as to be slidable back and forth with respect to the bed main body 2. Is done.

Next, a storage mechanism 10 for sliding the sliding frame 9 back and forth will be described.
As shown in FIG. 2, the storage mechanism 10 amplifies the amount of expansion / contraction of the actuator 18 that can be appropriately expanded and contracted and the actuator 18 whose rear portion is pivotally connected to the front portion of the actuator 18, and Are composed of an amplification unit 19 for sliding the frame back and forth and a rod 20 for sliding the sliding frame 9 back and forth in accordance with the operation of the lifting mechanism 3.
As shown in FIG. 4, the amplifying unit 19 has two base plates 21a and 21a integrated so that at least gaps 21b and 21b are formed in the side portion between the substantially U-shaped base plates 21a and 21a in a front view. The case body 21 is configured, and shaft members 22 and 22 having vertical axis centers are attached to the front and rear portions inside the case body 21. Further, rollers 23 and 23 are attached to the inside of the case body 21 so as to be rotatable around the shaft members 22 and 22. Further, two wire members 24 and 24 having connecting plates 24a and 24a attached to one end and substantially U-shaped connecting tools 24b and 24b attached to the other end in a plan view are connected to the connecting plates 24a and 24a. The shaft members 25 and 26 are inserted into the tools 24b and 24b so as to be connected to each other, and two wire members 24 and 24 having a loop shape are disposed between the rollers 23 and 23, so that the wire members 24 and 24 and the shaft Members 25 and 26 are disposed inside the case body 21. A plurality of collar members 27, 27, 28, and 28 are attached to the shaft members 25 and 26, and the shaft members 25 and 26 move back and forth along the gaps 21 b and 21 b of the case body 21 without wobbling. It has been made possible. The wire members 24 and 24 are disposed between the rollers 23 and 23 so that the shaft members 25 and 26 are positioned one by one on the side of the rollers 23 and 23. The shaft members 25 and 26 have a length that protrudes at least from the gaps 21 b and 21 b of the case body 21.

  The amplification unit 19 configured in this way is changed from the state shown in FIG. 4A to the state shown in FIG. 4B, with one shaft member 25 as a fixed end, for example, the case body 21 Is moved backward (in the direction of the arrow in FIG. 4 (b)), the other shaft member 26 is moved relative to the case body 21 by the action of the rollers 23, 23 and the wire members 24, 24. The case body 21 moves rearward by the amount of rearward movement. At this time, since the case body 21 itself is also moved rearward, the other shaft member 26 moves twice as much as the movement amount of the case body 21 together with the movement amount with respect to the case body 21. become. That is, the amplification unit 19 is configured such that when the case body 21 is moved under the above-described conditions, the other shaft member 26 is moved by a double movement amount with respect to the movement amount of the case body 21. Yes.

  As shown in FIG. 2, the amplifying unit 19 has a front part of the actuator 18 pivoted to a fixture 21c provided at the rear part of the case body 21, and a rear part of the actuator 18 is connected to the lifting frame 4. The shaft 4 is pivotally connected to a fixture 4e provided in the middle portion of the cross beam 4d, and one shaft member 26 is attached to a mounting plate 8b provided in the leg support frame 8. Further, the front part of the rod 20 is pivotally connected to the other shaft member 25 of the amplification unit 19, and the rear part of the rod 20 is provided at the intermediate part of the cross beam 11 a of the rotating unit 11 of the lifting mechanism 3. The storage mechanism 10 is configured to be pivoted to the tool 11d.

Next, the back support frame 6 rotatably disposed on the lift frame 4 and the back raising mechanism 5 that raises the back support frame 6 with the operation of the lift mechanism 3 will be described.
As shown in FIG. 3, the back support frame 6 has a substantially rectangular shape in plan view, and is pivotally connected to bearings 6a and 6a provided on both sides of the front side of the support frame 6. Shaft members 29, 29 are attached to the main girders 4 a, 4 a of the elevating frame 4 and are rotatably disposed on the elevating frame 4. Further, the rear portions of the housings 30 and 30 of the back raising mechanism 5 are pivotally connected to fixtures 2g and 2g provided on both sides of the connecting girder 2c of the bed body 2, and the front portions of the housings 30 and 30 are the back portions. A back raising mechanism 5 is configured between the bed main body 2 and the back support frame 6 by being pivotally connected to bearing plates 6 b and 6 b provided on the lower surface of the support frame 6. A plurality of reinforcing beams 6c, 6c are fixed inside the back support frame 6, and a plurality of stay members (not shown) are fixed.

The support frames 6, 7, 8 of the bed 1 configured in this way are supported by the components of the bed 1 so as to form the same plane in the bed state shown in FIG. together with the mat M ₁ is disposed above the frame 6 and the lumbar support frame 7, is a mat M ₂ is disposed above the leg-supporting frame 8, the floor section the user to supine is formed.

Next, the operation of the control device (not shown) of the bed 1 configured as described above will be described below.
First, when a control device (not shown) is operated to retract the actuator 13 of the elevating mechanism 3 from the bed state shown in FIG. 1, the rotating unit 11 is rotated upward about the shaft members 15 and 15, The sub-rotating plates 12 and 12 are also pivoted upward about the shaft members 17 and 17 so that the elevating frame 4 is raised in a substantially horizontal state, and the leg support frame is located below the waist support frame 7. A space S that can accommodate 8 is formed. Accompanying this movement, the pivotal portions B ₁ and B ₁ of the housing 30 and 30 of the back raising mechanism 5 on the bed main body 2 side and the pivotal portions B ₂ and B ₂ of the back support frame 6 side in the front-rear direction By shortening the distance, the housings 30 and 30 are pivoted upwards about the pivotal portions B ₁ and B ₁ , and the back support frame 6 is pivoted about the shaft members 29 and 29 and raised back. . Further, with these movements, the rod 20 and the actuator 18 of the storage mechanism 10 are moved backward, the amplification unit 19 and the sliding frame 9 are moved backward without operating the amplification unit 19, and the bed is The state shown in FIG. 5 is obtained.
Next, when the control device (not shown) is operated and the actuator 18 of the storage mechanism 10 is contracted from the state shown in FIG. 5, the shaft member 25 of the amplification unit 19 becomes a fixed end by the action of the rod 20. The case body 21 is moved rearward. As a result, the amplification unit 19 is actuated, and the shaft member 26 attached to the leg support frame 8 is moved rearward by a movement amount twice as large as the movement amount of the case body 21. 9 is moved rearward by a movement amount twice as large as the movement amount of the case body 21, the leg support frame 8 is accommodated in the space S below the waist support frame 7, and the bed 1 is shown in FIG. It becomes the sofa state shown in.

Thus, this bed 1 can change the form of the bed 1 from the bed state shown in FIG. 1 to the sofa state shown in FIG. 6 by using the lifting mechanism 3 and the storage mechanism 10 together. The user who is lying on the back is automatically seated by the operation on the bed 1 side without changing the direction of the body, and the user can move to the front of the bed 1 without taking the end sitting position on the side of the bed 1. Can easily get out of bed.
Further, the bed 1 is formed by forming the space portion S for accommodating the leg support frame 8 by raising the elevating frame 4 by the elevating mechanism 3, so that the bed shown in FIG. The height of the floor in the state can be lowered, and even if the user who is supine on the bed 1 falls from the floor to the floor FL, it can be prevented as much as possible and the user feels at ease. Can be given. Further, the height of the waist support frame 7 from the floor FL when the lifting frame 4 is lifted by the lifting mechanism 3 can be set to a height at which the user who is lying on the bed 1 can easily leave the bed.
Further, the bed 1 is configured such that the sliding frame 9 is moved by an amount twice as much as the amount of movement of the case body 21 by the actuator 18 in the amplification unit 19 of the storage mechanism 10. Can be selected, and the bed 1 can be configured at a lower cost.
Further, the bed 1 is configured such that the leg support frame 8 can be stored below the waist support frame 7 by the storage mechanism 10, so that when the leg support frame 8 is stored below the waist support frame 7, 1 An open space can be formed in front, and a space for a user who is lying on the bed 1 to leave the bed can be secured.

  In this embodiment, by using a parallel link for the elevating mechanism 3, the elevating frame 4 is raised and moved backward, and the back raising mechanism 5 is operated in accordance with the operation of the elevating mechanism 3. The back support frame 4 is raised up. However, although not shown, an actuator or the like is provided between the bed main body and the back support frame, and a back raising mechanism that allows the back support frame to be raised by the expansion and contraction operation of the actuator can be operated independently. It is good as a thing. In this case, an elevating mechanism that uses an actuator or the like to lift the elevating frame directly above the bed main body may be used. In addition, an elevating mechanism that lifts the elevating frame directly above the bed main body by pushing and pulling a middle portion of a wire or the like disposed between the bed main body and the elevating frame with an actuator or the like may be used. . That is, the form of the lifting mechanism is not limited to this, and the same action and effect can be obtained as long as the lifting mechanism can be controlled by a control device (not shown). In addition, when the lifting mechanism as illustrated here is accompanied by a movement to the rear or the like as the lifting frame is lifted, the back lifting mechanism is operated along with the lifting mechanism as in the first embodiment. It is also possible to make it. Also, if the caregiver performs the operation when changing the form of the bed to the bed state shown in FIG. 1 or the sofa state shown in FIG. However, there is no problem even if the lifting mechanism or the storage mechanism can be manually operated by rotating the handle or the like. Similarly, if the caregiver operates, there is no problem even if the back raising mechanism is operated manually.

  Further, when changing the bed configuration from the bed state shown in FIG. 1 to the sofa state shown in FIG. 6, when the storage mechanism 10 is operated, the lifting mechanism 3 is first operated by a control device (not shown). Then, the elevating frame 4 is raised to a height that the leg support frame 8 can be accommodated, and when that state is reached, the storage mechanism 10 is operated so that the leg support frame 8 is accommodated below the waist support frame 7. May be. Further, when changing the form of the bed from the sofa state shown in FIG. 6 to the bed state shown in FIG. 1, when the lifting mechanism 3 is operated, the storage mechanism 10 is first operated by a control device (not shown). When the leg support frame 8 is moved forward and the space S is formed below the waist support frame 7, the elevating mechanism 3 is operated and the elevating frame 4 is formed on the floor of the bed 1. You may make it fall so that. If it does in this way, when changing the form of the bed 1, it will become unnecessary to operate according to a procedure, and the form of the bed 1 can be changed conveniently.

The side view which shows the bed state of a bed. (Example 1) Explanatory drawing which shows the structure of a bed. (Example 1) The perspective view which shows the structure of a bed. (Example 1) Explanatory drawing which shows the structure of an amplification unit. (Example 1) (a) Explanatory drawing which shows the structure of an amplification unit. (B) Explanatory drawing which shows the state which the amplification unit act | operated. The side view which shows the state by which the raising / lowering mechanism was operated. (Example 1) The side view which shows the sofa state of a bed. (Example 1) The side view which shows the bed of patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bed 2 Bed main body 3 Lifting mechanism 4 Lifting frame 5 Back raising mechanism 6 Back support frame 7 Lumbar support frame 8 Leg support frame 9 Sliding frame 10 Storage mechanism S Space part

Claims (1)

  An elevating mechanism that raises and lowers the elevating frame relative to at least the bed body, a back raising mechanism that elevates the back support frame disposed on the elevating frame, and a leg portion below the waist support frame disposed on the elevating frame In a bed having a storage mechanism for storing a support frame, when the leg support frame is stored below the waist support frame, the space is formed below the waist support frame by operating the lift mechanism and raising the lift frame. And moving the sliding frame on which the leg support frame is disposed with respect to the bed main body to operate the storage mechanism in the space formed below the waist support frame. A bed characterized in that the leg support frame is accommodated.

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