JPH09224982A - Wake-up bed equipment - Google Patents

Abstract

(57) [Abstract] (Correction) [Problem] To change the curve of the mattress that the user lies on by selecting an arbitrary air bag from a plurality of air bags and changing the internal air pressure and air filling amount of the air bag. The purpose is to SOLUTION: A bed frame 1 and a fixed floor plate portion 2 fixedly provided at a midway portion of the bed frame in the longitudinal direction.
And a back floor plate portion that is undulatingly connected to one end side of the fixed floor plate portion, a leg floor plate portion that is undulatingly connected to the other end side of the fixed floor plate portion, and a back raising drive that drives the back floor plate portion up and down. Mechanism 2
And an air mattress 5 laid on the floor board, and this air mattress has a plurality of air bags 52,
It is characterized in that the height and hardness are made variable by selecting an arbitrary air bag from the plurality of air bags and changing the air pressure in the air bag.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wake-up type bed device which allows a user to drive a laid-up floor plate body up and down.

[0002]

2. Description of the Related Art In a bed apparatus for a bedridden user such as a sick person or an elderly person, a so-called wake-up type apparatus which can assist a patient who has weak physical strength to wake up when eating Bed equipment is used.
This wake-up type bed device divides a floor plate body provided on the upper surface of a bed frame into a plurality of floor plate portions in the longitudinal direction of the bed frame, and a floor plate of a portion of the user corresponding to the upper half of the user's body. It has a structure in which the section can be driven up and down by a drive mechanism.

Generally, the ratio of the load on the mattress device between the back and the buttocks when the human body is supine is 33% on the back,
44% of the buttocks, the line of the spine curves downward from the head to the back, curves upward from the back to the waist, then curves downward from the waist to the buttocks, and then upwards from the buttocks to the legs doing. That is, since the waist is narrowed as compared to the buttocks and the back, when a person is supine or lying on the upper surface of the mattress, the lumbar spine where the lumbar region is located is burdened. Therefore, it was necessary to support the lower back.

By the way, since the person using the wake-up type bed apparatus as described above is usually a bedridden person for the sick person or the elderly person, the person who has decreased physical strength has a weak lumbar vertebrae and a lower back. Mattresses that do not support it have to be uncomfortable. In addition, even in a healthy person, there is a need to change the age and body shape, change the hardness depending on the time and the case, and partially change the support of the body.

Another problem with the wake-up bed apparatus is that
When the user raised the back floor plate at the time of eating and made the user sit on the mattress, when the mattress bent sharply, the body, particularly the back and the abdomen, might be pressed. This problem is often affected by the body shape of the user, but it is solved by changing the bending form of the mattress when the back floor plate is raised to a gentle curve.

The mattress used in these wake-up bed apparatuses is usually a spring-loaded mattress or one obtained by polymerizing several pieces of hard cotton. For example, in a spring-loaded mattress, a large number of springs are formed in a flat plate shape. A spring unit is connected to form a spring unit, and at least one of the upper and lower surfaces of the spring unit is polymerized with a padding of a protective material and an elastic body, and the polymer is covered with an exterior material. Since such mattresses usually have a flat upper surface, pressure is applied to the buttocks and the lumbar spine is burdened. For this reason, the applicant has devised to change the hardness of the spring unit in the parts corresponding to the waist and buttocks. However, as described above, the burden on the lumbar spine varies depending on the physical condition of the user and the age, and as a result, the lower back may be hurt and the sleepiness may deteriorate. It also sometimes caused bedsores.

[0007]

As described above, in the conventional wake-up type bed apparatus, when the user is obese, slim, or when the user's body condition or age, Since the burden will be different, it is an object of the present invention to provide a wake-up type bed apparatus that can cope with these situations. The present invention was made based on the above circumstances, and its purpose is to determine the physical condition of the user,
Height, hardness, when the burden on the lumbar spine varies according to age,
To provide a wake-up type bed device capable of changing and selecting the feeling of use so as to reduce the burden on the lumbar spine, and yet another object to provide a wake-up type bed device capable of changing the bending condition of a mattress, To prevent the occurrence of.

[0008]

In order to solve the above-mentioned problems, the present invention is directed to a bed frame, a fixed floor plate portion fixedly provided at a midway portion of the bed frame in the longitudinal direction, and one end of the fixed floor plate portion. Side undulatingly connected to the back floor plate part, a leg floor plate part undulatingly connected to the other end of the fixed floor plate part, a back raising drive mechanism for undulating the back floor plate part, and the floor plate part This air mattress has a plurality of air bags, and by selecting an arbitrary air bag from the plurality of air bags and changing the air pressure in the air bag, the height, By making the hardness variable, it is possible to reduce the burden on the lumbar spine depending on the physical condition and age of the user.

According to the first aspect of the present invention, the user's spine is supported so as not to apply an unreasonable burden on the lumbar spine, and the supporting pressure can be changed depending on the situation. By changing the height by increasing or decreasing the amount of air filled into the airbag, you can select the user's favorite support condition and reduce the burden on the lumbar spine, and select any airbag from multiple airbags do it,
The curve of the mattress can be changed by changing the air pressure and the filling amount in the air bag.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a bed apparatus according to the present invention, FIG. 2 is a cross-sectional view of an air mattress placed on a floor plate portion, and FIG. 3 is a plan view of the air mattress. This bed apparatus is provided with a bed frame 1 and a floor board 2 on the upper surface of the bed frame 1, and the floor board 2 is divided into five floor board parts along the frame as shown in FIG. . That is, the central portion in the longitudinal direction is a fixed floor plate portion 2a fixed to the frame 1, and a waist floor plate portion 2b and a back floor plate portion 2c, which are undulatingly connected to one end side of the fixed floor plate portion 2a, are sequentially arranged. It is rotatably connected. A first leg floor plate portion 2d and a second leg floor plate portion 2e which are undulatingly coupled are sequentially rotatably coupled to the other end side of the fixed floor plate portion 2a. In the central part of the bed frame 1, there are leg floor plates 2
d, a second leg floor plate portion 2e, and a back raising and leg raising driving mechanism 3 for driving the waist floor plate portion 2b) back floor plate portion 2c to move up and down, and the upper surface of the floor plate portion 2 corresponds to each floor plate portion. An air mattress 5 that is bent, expanded, and contracted is placed and fixed.

The back-raising drive mechanism 3 includes a motor 31 and a first rotating shaft 32 which is rotationally driven by the motor 31.
And the first rotary shaft 32 provided on the first rotary shaft 32.
The first raising arm 41 that rotates together with the second floor shaft 2c to push up the back floor plate portion 2c, the second rotation shaft 33, and the second rotation shaft 33 that is provided on the second rotation shaft 33 and rotates together with the second rotation shaft 33. It has the 2nd raising arm 42 which pushes up leg floor board part 2d.

The back-raising drive mechanism 3 is provided on the bed frame 1, and the back-raising drive mechanism 3 has a long box 34 having a drive motor 31 on one side. A first rotating shaft 32 is provided at one end of the box 34 in the longitudinal direction, and a second rotating shaft 33 is provided at the other end.
A power transmission mechanism (not shown) for transmitting the rotation of the drive motor 31 to the first rotary shaft 32 is built in the box 34. When the drive motor 31 operates, the first rotary shaft 32 is rotated in the counterclockwise direction indicated by the arrow in FIG.

One end of a pair of first raising arms 41 is fixed to both ends of the first rotary shaft 32, and a pair of second raising arms is provided to both ends of the second rotary shaft 33. One end of 42 is fixed. Two rollers 6 are rotatably provided at a predetermined interval at the other end of the first raising arm 41, and one roller 7 is rotatably provided at the other end of the second raising arm 42. .

The pair of rollers 6 provided on the first raising arm 41 of the back raising drive mechanism 3 engages with the rail 8 shown in FIG. 1 provided on the lower surface of the back floor plate portion 2c, and the second One roller 7 provided on the raising arm 42 is in contact with the lower surface of the first leg floor plate portion 2d.

The first rotary shaft 32 of the back-raising drive mechanism 3
When the first raising arm 41 is driven to rotate in the ascending direction, the roller 6 is pressed to rotate the back floor plate portion 2c upward, and the waist floor plate portion 2b is rotated by the rotation of the back floor plate portion 2c. Work together. As a result, the user M lying on the air mattress 5 wakes up.

The air mattress 5 includes a case 51 and a plurality of air bags 52a to 5a accommodated in the case 51.
2e, and an outer casing 53 that covers the case 51 and the air bag 52.

The case 51 includes a side wall 51a made of a semi-hard elastic material such as urethane foam and a bottom plate 51 made of hard cotton.
and b, the upper surface is opened to form a box shape. Bottom plate 51b
Since it is made of hard cotton and has a certain degree of rigidity, a plurality of notches 51c are provided in the width direction so as to bend according to the bending of the floor plate portion of the bed.

The air bags 52a to 52e are formed in a bag shape by joining the peripheral portions of the upper sheet and the lower sheet,
When air is filled, the concave portion 521 and the convex portion 52 are formed on both front and back surfaces.
The above sheets are joined at a plurality of points so that the sheet 2 is formed. Then, a through hole 523 is formed in the portion that becomes the recess 521.
Are drilled.

The through holes 523 are formed in the air bags 52a-5.
2e communicates with the front and back surfaces of the concave portion 522 and the convex portion 521.
Due to the shape, the air permeability of each of the air bags 52a to 52e in the housing portion inside the case 51 is maintained well.

The case 51 accommodating the air bag 52 is covered with an exterior body 53. This exterior body 53 covers the lower surface of the bottom plate 51b of the case 51 with the lower mirror surface 53a and the upper mirror surface 53b with the upper surface of the case 51, and the outer peripheral surfaces of these, and the upper and lower ends are taped to the peripheral part of the mirror surface. The sewn town 53c. Fasteners 53d are provided all around the town 53c, and the exterior body 5
3 can be opened and closed.

As shown in FIG. 3, compressed air is supplied to the above 52a to 52e by a supply pump 10. That is, one end of the supply pipe 11 is connected to the supply pump 10. The other end of the supply pipe 11 is branched into first to fifth branch pipes 11a to 11e. The branch pipes 11a to 11e are connected to the first to fifth airbags 52a to 52e, respectively.

An electromagnetic exhaust valve is connected to the main supply pipe 11 via an exhaust pipe, and electromagnetic first to fifth supply valves are similarly installed to the branch pipes 11a to 11e, respectively. ing. The exhaust valve and the supply valve are controlled to be opened / closed by a drive signal from the control device 9.
One end of a pressure detection pipe is connected to each of the air bags 52a to 52e, and a sensor unit is introduced to the other end of each pressure detection pipe. The sensor unit is provided with a detection sensor, and the other end of the pressure detection pipe is connected to each sensor.

Each sensor outputs a detection signal corresponding to the pressure from each pressure detection pipe to the control device. The control device is provided with first to fifth setting units. The detection signal from each sensor is compared with the set values respectively set in the first to fifth setting sections.

The setting value set in the setting unit can be changed in three steps, for example, high, medium and low. When the detection signal is larger than the above-mentioned set value by a predetermined width or smaller, that is, each of the airbags 52a to 52e
The first to fifth airbags 52a to 52e are respectively set when the pressure is higher than the set value by a predetermined width or lower than the set value.
The compressed air is discharged and supplied to.

With this structure, when the pressure of any of the five air bags 52a to 52e becomes larger than the set value set in the setting section, the compressed air of the air bag is discharged and becomes small. When it becomes, the supply pump is driven and it is supplied until it reaches the set value.

FIG. 4 shows an embodiment in which the air bags 52a to 52e are placed and fixed on the floor plate portion 2 without providing the exterior body 53, and this wake-up bed apparatus is an air bag which particularly contributes to the prevention of bed slip. Air bags 52a to 52
e A thin bed pad or sheets will be laid on the upper surface.

As shown in FIG. 5, a locking band 12 is provided at an appropriate position on the lower surface of the air bags 52a to 52e of the air mattress 5, and the locking band 12 is composed of two bands 12a and 12b. A velvet fastener 12c is sewn to the tip of each of them. The air mattress 5 is placed on the floor plate 2 and the locking bands 12a, 12b
Velvet fastener 12c
By stopping, the air mattress 5 is fixed to the floor plate portion 2.

As shown in FIG. 6, each of the air bags 52a to 52e is formed by stacking an upper sheet 523 and a lower sheet 524, which are rectangular in shape and made of synthetic resin or rubber having airtightness, and welded the peripheral portions thereof. Is formed into a bag shape, and a plurality of partition sheets 525 are provided inside the bag at predetermined intervals in a predetermined direction. The partition sheet 525 is partially cut away, and air flows in the air bags 52a to 52e. ing.

A large number of small holes 522 are formed on the surfaces of the air bags 52a and 52b, and the air A is constantly discharged from the small holes 522, which contributes to preventing the occurrence of floor sores.

FIG. 7 shows a state in which the user is sleeping. The air bag 52b corresponding to the user's waist M1 increases the amount of air to raise the height to support the lumbar spine, and the air located at the buttocks M2. The back 52a has a small amount of air and a low height, and supports the posture of the user M in a natural state.

9 and 10 show the air bags 52a-52.
The curve is displayed when the user is standing up by changing the height of b by changing the air filling amount. That is, when the user uses the wake-up bed apparatus, the body of the user can be bent when the upper body needs to be raised by a meal etc., but at this time, the user forces a feeling of pressure on the back and abdomen. It may be done.

Since the above-mentioned feeling of pressure varies depending on the body shape of the user, in such a case, the air bag 5 is used.
The bending state of the body can be changed by changing the amount of air filled into 2a to 52b. In FIG. 9, the air volume of the air bag 52a corresponding to the back is reduced, and the air volume of the air bags 52b and 52c corresponding to the waist and buttocks is increased. In FIG. 10, the amount of air in the air bag 52a is increased so that the air bags 52b, 52 corresponding to the waist and buttocks are increased.
The amount of air in c is reduced. This gives the curve X in FIG.
In comparison with the curve Y in FIG. 10, the curve in which the body bends is gentle.

[0033]

As described above, according to the present invention, the bed frame, the fixed floor plate portion fixedly provided at the middle portion in the longitudinal direction of the bed frame, and the one end side of the fixed floor plate portion are freely undulated. Back floor plate part, a leg floor plate part undulatingly connected to the other end side of the fixed floor plate part, a back-raising drive mechanism for driving the back floor plate part up and down, and an air mattress laid on the floor plate part This air mattress has multiple air bags, and by selecting any air bag from the multiple air bags and changing the air pressure and air filling amount inside the air bag, the height and hardness can be improved. Since it is variable, it is possible to provide a wake-up bed device that reduces the burden on the lumbar spine according to the physical condition and age of the user.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a wake-up type bed device showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an air mattress and a floor plate portion.

FIG. 3 is a plan view of an air mattress.

FIG. 4 is a cross-sectional view of a wake-up type bed device showing another embodiment.

FIG. 5 is a perspective view in which an air mattress is fixed to a floor plate portion.

FIG. 6 is a partial cross-sectional view in which an air mattress is fixed to a floor plate portion.

FIG. 7 is a cross-sectional view in which an air mattress is laid on a floor plate portion.

FIG. 8 is a plan view in which an air mattress is laid on the floor plate portion.

FIG. 9 is a sectional view showing a curve X of the air mattress.

FIG. 10 is a cross-sectional view showing a curve Y of the air mattress.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bed frame 2 ... Floor plate part 3 ... Drive mechanism 41, 42 ... Arm 5 ... Air mattress 52 ... Air bag 6, 7 ... Roller 8 ... Rail 9 ... Control device 10 ... Supply pump 11 ... Branch pipe 12 ... Band

Claims (1)

[Claims] 1. A bed frame, a fixed floor plate portion fixedly provided at a midway portion in the longitudinal direction of the bed frame, a back floor plate portion undulatingly connected to one end side of the fixed floor plate portion, and the above fixing. It consists of a leg floor plate part that is undulatingly connected to the other end of the floor plate part, a back-raising drive mechanism that drives the back floor plate part up and down, and an air mattress laid on the floor plate part. Have a back,
By selecting an arbitrary air bag from this plurality of air bags and changing the air pressure and air filling amount in this air bag, the height and hardness can be changed,
A wake-up type bed device that is designed to reduce the burden on the lumbar spine according to the physical condition and age of the user.