JPH10248882A - Bed device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide at low cost a bed device having the function of raising and lowering a bed floor face and the function of tilting it. SOLUTION: This bed device has an air mat 2 laid on the floor face of a bed main body 1 and has a mat layer 3 laid on the air mat 2, the air mat 2 comprising longitudinal air-chamber mat 2a and lateral air-chamber mat 2b which are vertically stacked in plural stages; the longitudinal air chamber mat 2a and the lateral air chamber mat 2b are made to communicate with an air feeder/exhauster device 4 respectively, and by operation of the air feeder/ exhauster device 4 each air chamber mat 2a, 2b can be expanded and contracted to enable the mat layer 3 serving as the floor face to be raised and lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus, and more particularly, to a bed apparatus having a floor that can be raised and lowered.

[0002]

2. Description of the Related Art Conventionally, nursing care bed devices have been developed in which a bed floor can be automatically raised and lowered or tilted, but most of them are a bed floor raising and lowering mechanism and a tilting mechanism. The structure becomes complicated, and a motor or the like serving as a driving source is installed below the floor of the bed, so that the structure becomes very large and the cost rises. Therefore, use in places other than hospitals and nursing homes, that is, in ordinary households, was impossible. Further, in the conventional bed apparatus, since a driving source, a lifting and lowering mechanism, and a tilting mechanism are provided at a lower portion of the bed body, noise generated at the time of operation is large, and it cannot be ignored as a discomfort factor given to the care receiver.

[0003]

However, at the present time, as the population is aging, it is necessary to care for the elderly at home. There is an increasing demand to use such a bed apparatus at home. The bed apparatus of the present invention has been made in view of the above-described circumstances, and the object thereof is to provide a bed apparatus having a bed floor elevation function and an inclination function at a low cost as described above. To provide.

[0004]

Means for Solving the Problems As means for solving the above-mentioned problems, a bed apparatus according to the present invention comprises laying an air mat on the floor of a bed body and laying a mat layer on the air mat. And the air mat is
A vertical air chamber mat formed by arranging a plurality of air chambers extending in the bed length direction in the bed width direction and a horizontal air chamber mat formed by arranging a plurality of air chambers extending in the bed width direction in the bed length direction. The air chambers of the vertical air chamber mat and the horizontal air chamber mat are connected to a supply / exhaust device having an air supply / exhaust function, respectively, and each air chamber mat is configured to be inflatable and contractible. It consists of

[0005] According to the above means, the air mat placed on the floor of the bed main body includes a vertical air chamber mat in which air chambers extending in the entire length of the bed are arranged in parallel, and an air chamber extending in the bed width direction. And a lateral air chamber mat formed by arranging in parallel a plurality of layers vertically. A mat layer serving as a floor is laid on the air mat. The vertical air chamber mat and the horizontal air chamber mat are each connected to a supply / exhaust device, and the supply / exhaust device supplies and exhausts air to both air chambers. The side air chamber mat expands / shrinks.

When the vertical and horizontal air chamber mats expand as described above, the thickness of the air mat itself increases, and the mat layer laid on the air mat, that is, the floor surface, rises. Also,
In the air mat placed on the floor of the bed body, when the air chamber mats shrink, the thickness of the mat itself decreases, and the air mat layer serving as the floor descends accordingly.

[0007] The bed device according to the second aspect of the present invention is constructed by laying an air mat on the floor of the bed body and laying a mat layer on the air mat, wherein the air mat extends in the full length direction of the bed. A vertical air chamber mat in which a plurality of air chambers extending in the bed width direction are juxtaposed in a bed width direction, and a horizontal air chamber mat in which a plurality of air chambers extending in the bed width direction are juxtaposed in the full length direction of the bed are vertically stacked in a plurality of layers. The air chambers that constitute the vertical air chamber mat are divided into right air chambers and left air chambers around the center of the floor, and both right and left air chambers of the vertical air chamber mat are divided. And the side air chamber mat are connected to a supply / exhaust device having an air supply / exhaust function, respectively, so that each air chamber can be individually expanded and contracted.

According to the above means, the air mat placed on the floor surface of the bed body includes a vertical air chamber mat in which air chambers extending in the entire length of the bed are arranged in parallel, and an air chamber extending in the bed width direction. A plurality of side air chamber mats arranged in parallel are stacked vertically. A mat layer serving as a floor is laid on the air mat. Further, the vertical air chamber mat is divided into right and left with a boundary near the center of the floor surface, and each air chamber expands / contracts individually by the operation of the air supply / exhaust device.

Therefore, in the air mat, by inflating / contracting both the left and right air chambers at the same time, the thickness of the mat can be increased or decreased in the same manner as described above to raise / lower the floor surface. Further, by contracting only one of the left and right air chambers from the inflated state, one side of the mat layer serving as the floor surface can be inclined. The air mat can be inclined from one side of the air layer by expanding one of the left and right air chambers in the same manner as in the above case.

[0010] The bed apparatus described above may be provided with a guide mechanism for guiding the mat layer up and down.

In this case, the mat layer laid on the air mat is vertically movably guided by the guide mechanism, and moves up and down stably with the expansion / contraction of the air mat.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Bed apparatus a shown in FIGS. 1 to 5
1 includes a bed body 1 configured by combining a pipe frame, an angle material, and the like. An air mat 2 is laid on the floor 1 a of the bed body 1, and a mattress 3 serving as a mat layer is placed on the air mat 2. The air mat 2 communicates with a supply / exhaust device 4 having an air supply / exhaust function through a pipe-shaped supply / exhaust passage 5. It is configured so that it can be contracted and the height of the mattress 3 serving as a floor surface can be changed (FIG. 1).

The bed body 1 forms a rectangular floor surface 1a in a plan view by combining a pipe frame and an angle member, and the like, and supports uprights 12 also serving as legs at four corners of the floor surface 1a. The floor 1a is supported at a certain height from the floor. The upper ends of the left and right columns 12 are connected to each other by a connecting rod 12a.

The air mat 2 is a mat formed by stacking a plurality of air mats formed by using a rubberized cloth, and has a large number of air chambers 2a 'extending in the entire length direction of the bed body 1 in the width direction of the bed body 1. Vertical air chamber mat 2a formed in parallel
And a plurality of air chambers 2b 'extending in the width direction of the bed body 1 and a plurality of air chambers 2b'
Are alternately stacked in a plurality of stages (FIGS. 2 and 3). In addition, the said air mat may be comprised using tarpaulin, synthetic leather, etc. other than a rubberized cloth.

In the vertical air chamber mat 2a, a band-shaped hanging cloth 22a extending in the full length direction of the mat 2 is provided between inner surfaces of the facing sheets 21, 21 '.
It is configured so that the thickness between 21 ′ is maintained at a predetermined size. The hanging cloths 22a are arranged in parallel in the width direction of the air mat 2 at a predetermined interval, so that a large number of air chambers 2a 'extending in the entire length direction of the bed body 1 are provided in the width direction of the bed body 1. It becomes a parallel structure. The air chambers 2a 'communicate with each other at the ends of the air chambers.

On the other hand, the horizontal air chamber mat 2b sandwiched between both vertical air chamber mats 2a has a band-shaped hanging cloth 22b extending in the entire width direction of the air mat 2 between the inner surfaces of the facing outer sheets 21 ', 21'. Erection, both outer sheets 21 ', 21'
It is configured such that the thickness between them is maintained at a predetermined size. The hanging cloths 22b are arranged in parallel at regular intervals in the full length direction of the air mat 2, whereby a large number of air chambers 2a 'extending in the full length direction of the bed body 1 are arranged side by side in the width direction of the bed body 1. It has a structure.

The air chambers 2a 'and 2b' constituting the vertical air chamber mat 2a and the horizontal air chamber mat 2b communicate with each other at the ends of the air chambers, and are configured as one air chamber. The overlapping vertical and horizontal air chamber mats 2a and 2b are also communicated with each other through the communication hole 23, so that both the vertical air chamber mat 2a and the horizontal air chamber mat 2b communicate with each other in a single air chamber shape.

In this embodiment, one horizontal air chamber mat 2b is sandwiched between two upper and lower vertical air chamber mats 2a, for a total of 3 air chamber mats.
Although the air chambers of the stages are integrally configured, the air mat 2 is not limited to the vertical and horizontal air chamber mats having three stages, and may be configured by two or four or more stages. The air mat 2 is configured by alternately stacking the vertical air chamber mats 2a and the horizontal air chamber mats 2b. However, the vertical air chamber mats 2a and the horizontal air chamber mats 2b are preferably stacked alternately. The stacking pattern may be changed arbitrarily. For example, one or two horizontal air chamber mats 2b may be stacked on two vertical air chamber mats 2a. Further, each of the air chambers 2 constituting the vertical and horizontal air chamber mats 2a, 2b
a ′, 2b ′, the number of air chambers 2a ′, and the number of air chambers 2
The communication structure between b, the communication structure between the vertical and horizontal air chamber mats 2a and 2b, and the like may be arbitrarily changed.

The air mat 2 configured as described above is
The bed is laid on the floor surface 1a of the bed body 1 and fixed using a fastening means such as a bell bed type fastener so as not to shift.
The air mat 2 is provided on each of the columns 12 of the bed body 1.
Alternatively, the four corners may be fixed to support the floor 1a so as not to shift. The fastening means for fastening the four corners of the air mat 2 to the columns 12 may use any existing structure such as a binding string or a ring member. A mattress 3 serving as a mat layer is placed on an air mat 2 laid on the floor 1a of the bed body 1.

The mattress 3 is a mat in which a spring frame, a sponge material, and the like are provided in the same manner as a mattress used for a normal bed.
And is mounted on the air mat 2. The mattress 3 serving as a mat layer has an existing cushioning structure as long as it has an appropriate cushioning function and has a shape-retaining property capable of holding a substantially thick plate shape. You may.

Guide members 6 are provided on the side surfaces of the four corners of the mattress 3 (FIGS. 4 and 5). The guide member 6 guides the four corners of the mattress 3 along the pillars 12 erected at the four corners of the bed body 1, and supports a guide ring 6a formed in a short cylindrical shape extending from the mounting plate 6b. It is constituted by being supported by a plate 6c. An elongated hole 61 extending in the horizontal direction is opened at the tip of the support plate 6c, and an engaging pin 62 protruding from the peripheral surface of the guide ring 6a is inserted into the elongated hole 61, and is extended along the elongated hole 61. It is configured to slide.

Thus, the four corners of the mattress 3 are vertically movably supported by the guide rings 6a which slide up and down along the columns 12 of the bed body 1. In addition, as will be described later, a difference in dimension between the left and right mounting plates 6b and between the left and right columns 12 of the bed body 1, which occurs when the mattress 3 is inclined right and left, is absorbed by the long holes 61,
The guide ring 6a is smoothly moved up and down. The guide member 6 is fixedly attached to each of the four corners of the mattress 3 by fastening the mounting plate 6b to the side surfaces of the four corners of the mattress 3. In addition, each guide member 6 has a guide ring 6a fitted to a corresponding column 12, thereby supporting the four corners of the mattress 3 vertically movable along the columns 12 of the bed body 1. That is, the thick plate-shaped mattress 3 is supported by the four columns 12 so as to be vertically movable. The structure for supporting the four corners of the mattress 3 so as to be able to move up and down as described above is not limited to the support structure using the guide ring 6a and the column 12, but may be a structure using a guide rail or a ring mechanism. Any existing structure may be used as long as it can support the four corners of the mattress so as to be vertically movable.

On the other hand, the air mat 2 is connected to a supply / exhaust device 4 via a supply / exhaust passage 5. The supply / exhaust device 4
An air supply pump 4a for supplying compressed air and a switching valve 4b are provided. The air supply pump 4a supplies compressed air to the air mat 2 through the air supply / exhaust passage 5 (FIG. 1).

The switching valve 4b is connected to the air supply pump 4
a when the compressed air is sent from the air mat 2 to the air mat 2, an air supply state in which the air supply / exhaust path 5 is communicated, and a closed state in which the flow of air that is going to flow backward from the air mat 2 through the air supply / exhaust path 5 is stopped. And a function of arbitrarily switching between an exhaust state in which air in the air mat 2 is caused to flow backward and exhausted to the outside. The switching valve 4b may be configured to be manually operated by a user, or may be configured to be electrically switched using a solenoid or the like so that the three states can be arbitrarily switched. Good.

Next, the operation of the bed apparatus constructed as described above will be described. With the air mat 2 contracted,
The mattress 3 serving as the floor is placed on the floor 1a of the bed body 1 via the air mat 2 which has been squashed, and the upper surface of the mattress 3 serving as the floor is lowered (FIG. 7). ). In this state, mattress 3
Since the height to the upper surface is reduced, the care recipient can easily perform the operation of getting off the bed and, conversely, the operation of getting on the bed from the outside of the bed, and furthermore, the caregiver who supports it. Work is also reduced. In addition, mattress 3
The operation of changing the mattress or sheets laid on the floor can be easily performed by lowering the floor surface as described above.

When the floor is raised, the switching valve 4b is set to the air supply state, and the air supply pump 4a is operated to inject compressed air into the air mat 2. Air supply pump 4a
, The vertical air chamber mat 2a and the horizontal air chamber mat 2b of the air mat 2 gradually expand in parallel, and the thickness of the air mat 2 itself increases. Along with this, the mattress 3 placed on the air mat 2 rises, and when the air mat 2 is almost completely inflated, the mattress 3 rises to the same height as the floor of a normal bed. When the mattress 3 is raised, the guide members 6 provided at the four corners of the mattress 3 are guided along the columns 12 of the bed body 1, so that the mattress 3 is accurately placed on the air mat 2. It rises horizontally while maintaining the state (FIG. 6).

When the air mat 2 has completely expanded,
While stopping the operation of the air supply pump 4a, the switching valve 4b
Is closed to prevent backflow of air in the air mat 2 and maintain the inflated state of the air mat 2. Since the mattress 3 is raised by the air pressure in the air mat 2 acting on the entire floor surface, the mattress 3 is smoothly moved even when the weight of the care receiver is added to the mattress 3. In addition, the air mat 2 is provided with a one-way valve (not shown) for allowing air in the air chamber to escape to the outside, so that when the pressure in the air mat 2 rises to a predetermined value or more, the injected air escapes to the outside, It is possible to prevent the air mat 2 from being overloaded.

When lowering the raised floor surface,
The switching valve 4b is set in the exhaust state, and the air in the air mat 2 is exhausted to the outside. Thereby, the air mat 2
Gradually contracts, and the mattress 3 descends as its thickness decreases. The switching of the switching valve 4b and the operation and stop of the air supply pump 4a are performed manually by a user or by using a control unit (not shown) including a microcomputer or the like. It may be controlled.

Next, the bed apparatus a2 shown in FIG. 8 will be described. The bed device a2 shown in FIG. 8 is configured in the same manner as the bed device a1 except that the structure of the air mat 20 is changed so that the mattress 3 serving as the floor can be inclined left and right.

The air mat 20 of the bed device a2
As in the case of the air mat 2 described above, a vertical air chamber mat 20a in which a number of air chambers 20a 'extending in the entire length direction of the bed body 1 are arranged side by side in the width direction of the bed body 1 and extends in the width direction of the bed body 1 The air chamber 20b 'is configured by alternately stacking a plurality of side air chamber mats 20b, which are arranged in parallel in the full length direction of the bed body 1 (FIGS. 9 and 10). The air mat 20 is provided with the respective mats 20a, 20b without making the vertical and horizontal air chamber mats 20a, 20b communicate with each other.
Each room has an independent air chamber.

The two vertical air chambers 20a are divided into a right air chamber 20R and a left air chamber 20L at the center of the bed width direction (FIG. 9). Left and right air chamber 20R,
In the interior of the air chamber 20L, a hanging cloth 22a is erected in the same manner as the vertical air chamber mat 2a to extend in the full length direction of the bed.
a ′ is provided in parallel in the bed width direction.
The air chambers 20a 'in the OR and the air chambers 20a' formed in the left air chamber 20L communicate with each other at their ends.

The bed apparatus a2 of this embodiment is provided with an air supply / exhaust device 40 including an air supply pump 4a and three switching valves 4c, 4d, 4e. Compressed air supplied from the air supply pump 4a is supplied to each of the air chambers 20R, 20L, and 20b via the air pumps 55 to 55 (FIGS. 8 and 11).

An air supply passage 50 is connected to the air supply pump 4a for supplying compressed air to the air mat 20 configured as described above. The air supply path 50 branches into three,
Each branch end is connected to the switching valve 4c, 4d, 4e.
The switching valve 4c is connected to the right air chamber 20R of both vertical air chamber mats 20a via supply / exhaust passages 51 and 52 branched on the secondary side of the valve 4c. The switching valve 4d is connected to the left air chamber 20L of both vertical air chamber mats 20a via supply / exhaust passages 53 and 54 branched on the secondary side of the switching valve 4d. Further, the switching valve 4e is connected to the side air chamber mat 20b through the air supply / exhaust passage 55.
Contact

The switching valve 4c is connected to both vertical air chamber mats 20.
a, which is a valve for the right air chamber of FIG. 3A, and which supplies air to the air supply / exhaust passages 51, 52 when compressed air is sent from the air supply pump 4a to the right air chamber 20R of both vertical air chamber mats 20a. A closed state in which the flow of air that is going to flow backward from inside the right and left air chambers 20R via the air supply passage 50 is stopped;
It has a function of arbitrarily switching between an exhaust state in which the air inside is caused to flow backward and exhausted to the outside.

The switching valve 4d is a valve for the left air chamber of the two vertical air chamber mats 20a, and is used to supply air to the left air chamber 20L of the two vertical air chamber mats 20a by the air supply pump 4a. An air supply state in which the exhaust passages 53 and 54 communicate with each other, a closed state in which the flow of air that is going to flow backward from the left air chamber 20L of the both vertical air chamber mats 20b via the air supply path 50 is closed, and both left air chambers It has a function of arbitrarily switching between an exhaust state in which the air in 20L is caused to flow backward and exhausted to the outside.

The switching valve 4e is connected to the side air chamber mat 20.
b, a switching valve for supplying air from the air supply pump 4a to the side air chamber mat 20b when the air is supplied from the air supply pump 4a to the side air chamber mat 20b.
And a function of arbitrarily switching between a closed state in which the flow of air to be back-flowed through the air is stopped and a discharge state in which air in the side air chamber mat 20b is back-flowed and discharged to the outside.

Each of the switching valves 4c, 4d, and 4e can be manually operated by a user, or can be electrically switched using a solenoid or the like to arbitrarily change the above three states. You may comprise so that it can be switched. The number of air mats 20 and the stacking pattern may be arbitrarily changed as in the case of the air mat 2 of the bed device a.

Next, the operation of the bed apparatus configured as described above will be described. When raising the floor from the state in which the air mat 20 has contracted, the switching valves 4c, 4d, 4
e At the same time, the air supply state is established, and the air supply pump 4a is operated to simultaneously inject compressed air into the left and right air chambers 20R, 20L and the side air chamber mat 20b of both the vertical air chamber mats 20a of the air mat 20.

By the air supply from the air supply pump 4a, both the vertical air chamber mat 20a and the horizontal air chamber mat 20b gradually expand in parallel, and the thickness of the air mat 20 itself increases. Accordingly, the mattress 3 placed on the air mat 20 rises while maintaining the level, and when the air mat 20 is almost completely inflated, the mattress 3 is raised to the same height as the floor of a normal bed. (FIG. 12). When the air mat 20 is completely inflated, the operation of the air supply pump 4a is stopped, and the switching valves 4c, 4d, and 4e are closed, respectively, to prevent the backflow of the air in the air mat 20 and to prevent the air mat 20 from flowing back. Maintain the inflated state.

When lowering the raised floor, the switching valves 4c, 4d and 4e are evacuated and the air mat 20 is turned off.
The air is simultaneously discharged from the left and right air chambers 20R and 20L of the vertical air chamber mat 20a and the horizontal air chamber mat 20b. As a result, the air mat 2 gradually contracts while maintaining the horizontal position, and the mattress 3 descends as the thickness of the air mat 2 decreases.

When only the switching valve 4c is exhausted from the state where the air mat 20 is completely inflated, only the right air chamber 20R of both the vertical air chamber mats 20a contracts and is laid on the air mat 20. The mattress 3 is inclined downward to the right (FIG. 13). As described above, by inclining one side of the mattress 3 serving as the floor, the care receiver lying on the bed can be placed on the floor, for example, in the case where the care receiver replaces sheets while lying on the bed. Can easily be moved from the center to the right. Also, when the user gets on and off the floor from the right side of the bed, the operation can be easily performed. The air mat 2
0 can also incline one side of the mattress 3 by expanding one of the left and right air chambers from the contracted state.

By setting the switching valve 4c to the air supply state and operating the air supply pump 4a, the contracted right air chamber 20R is expanded as described above, and the vertical air chamber mat 20 is expanded.
a can be inflated left and right equally to restore the floor surface to a flat shape. Contrary to the above case, air mat 2
When only the switching valve 4d is evacuated from the state where 0 is completely expanded, only the left air chamber 20L of both the vertical air chamber mats 20a contracts, and the mattress 3 serving as the floor inclines to the left.
In the above embodiment, the left and right air chambers 20L, 20R of the two vertical air chamber mats 20a are configured to expand and contract simultaneously.
0L and 20R may be separately expanded / contracted for each stage.

The switching of the switching valves 4c, 4d, 4e and the operation and stop of the air supply pump 4a can be performed manually by a user or by a control unit (not shown) constituted by a microcomputer or the like. ). As described above, the switching valves 4c, 4d, 4e,
In the case where the operation of the air supply pump 4a is controlled by the control unit, the user inputs an arbitrary operation command through an input device such as an operation panel provided in the control unit, so that the floor can be raised and lowered or tilted. Can be automatically performed.

The air mats 2, 20 of the bed devices a1, a2 are vertically and horizontally air chamber mats 2a, 2b, 20.
Although a and 20b are formed in a plurality of steps and are integrally formed, the above-described vertical and horizontal air chamber mats may be formed by forming the respective mats separately and then stacking them. In this case, it is preferable that the vertical and horizontal air chamber mats are detachably fastened to each other by fastening means such as a bell-bed fastener. The fastening means may be any existing one such as a string or an engagement hook other than the velvet fastener.

The air supply / exhaust device provided in the bed apparatus may be any air supply / exhaust device provided with a function of supplying air supplied from an air supply pump to each air chamber of the air mat and exhausting the air. The arrangement and the number of air supply / exhaust passages, switching valves, and air supply pumps connected to each air chamber of the air mat may be arbitrarily changed.

The bed devices a1 and a2 are provided with ring-shaped guide members 6 at four corners of the mattress 3 as a guide mechanism of the mattress 3, and guide the guide members 6 along the columns 12 of the bed body 1. However, any existing structure may be adopted as the guide mechanism as long as it can support the mattress 3 so as to be vertically movable.

[0047]

As described above, according to the present invention, an air mat composed of a plurality of vertical air chamber mats and side air chamber mats stacked alternately on a floor of a bed body is provided. A mat layer is placed on the mat, and both the vertical and horizontal air chambers of the air mat can be expanded and contracted by the air supply / exhaust device. By increasing or decreasing the thickness of the air mat, the thickness of the mat layer serving as the floor of the bed can be arbitrarily changed. Therefore, when a care recipient with a physical disability moves from a bed to a wheelchair, or conversely, moves from outside the bed to the floor, the mat layer serving as the floor of the bed can be arbitrarily lowered. As a result, the height from the floor surface to the floor surface can be sufficiently reduced, whereby the burden of the care recipient when entering and leaving the bed can be reduced. Even when the caregiver performs bed making work, the work can be performed smoothly by lowering the floor of the bed in the same manner as described above.

Further, the bed apparatus of the present invention raises and lowers the mat layer serving as the floor surface by utilizing the expansion and contraction of the air mat, so that the structure is simplified and the cost is reduced as compared with the conventional bed apparatus. And the noise generated when the floor is raised and lowered can be reduced. Furthermore, since the air mat is configured by alternately stacking the vertical air chamber mat and the horizontal air chamber mat in a plurality of stages, the air mat is effectively prevented from being twisted or distorted in the inflated state, A mat layer serving as a floor surface can be stably supported.

In the bed apparatus according to the second aspect, an air mat is formed by stacking a plurality of vertical air chamber mats and horizontal air chamber mats on the floor surface of the bed body, and the air mat forming the vertical air chamber mat is provided. The room is divided into an air chamber on the right side and an air chamber on the left side near the center of the floor, and the left and right air chambers of the vertical air chamber mat and the horizontal air chamber mat are connected to the air supply / exhaust device, respectively. Since each air chamber is configured so as to be able to expand and contract individually, the same effect as that of the bed apparatus according to claim 1 is achieved, and the height of the mat layer serving as the floor of the bed is arbitrarily changed. can do.

Further, since the vertical air chamber mat is divided into left and right air chambers, and each air chamber is configured to be individually expandable and contractable,
For example, from the inflated state of the air mat, by contracting or expanding only one of the left and right air chambers, the mat layer placed on the air mat, that is, the left and right sides of the floor surface are arbitrarily inclined. Can be done. Therefore, when a care recipient with a physical disability moves from one side of the floor to the other side, or moves from one side of the bed to a wheelchair, etc., on the contrary, from one side of the bed to the bed By inclining one side of the floor surface as described above when placing, etc., the care recipient's movement can be assisted and the burden due to the movement can be effectively reduced.

In the bed apparatus according to the third aspect of the present invention, the guide mechanism for guiding the vertical movement of the mat layer is provided. The mechanism can prevent the mat layer from shifting and can stably move the mat layer up and down.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a bed apparatus embodying the present invention, and FIG. 1B is a perspective view showing an air mat.

FIG. 2 is a longitudinal sectional view of an air mat used in the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a perspective view showing a guide member.

FIG. 5 is a front view showing a vertically moving state of the guide member.

FIG. 6 is a front view showing the bed apparatus in a state where the floor surface is raised.

FIG. 7 is a front view showing the bed apparatus in a state where the floor surface is lowered.

8A is a perspective view showing a bed device having a tilting function, and FIG. 8B is a perspective view showing an air mat.

FIG. 9 is a longitudinal sectional view showing an air mat used in the bed apparatus.

FIG. 10 is a sectional view taken along line XX in FIG. 9;

FIG. 11 is a simplified diagram showing a supply / exhaust path of the bed apparatus.

FIG. 12 is a front view showing the bed device with a part cut away.

FIG. 13 is a front view of the bed apparatus with a partially inclined floor surface, which is partially cut away.

[Explanation of symbols]

 a1, a2: Bed device 1: Bed body 2, 20: Air mat 2a, 20a: Vertical air chamber mat 2b, 20b: Horizontal air chamber mat 3: Mattress 4, 40 ... Supply / exhaust device 6 ... Guide member

Claims (3)

[Claims] An air mat is laid on a floor of a bed body, and a mat layer is laid on the air mat. A vertical air chamber mat formed by arranging a plurality of air chambers in parallel with each other, and a horizontal air chamber mat formed by arranging a plurality of air chambers extending in the bed width direction in parallel with the entire length of the bed, in a vertically stacked manner, A bed device in which air chambers of a mat and a side air chamber mat are respectively connected to a supply / exhaust device having an air supply / exhaust function, and each air chamber mat is configured to be inflatable and contractible. 2. An air mat is laid on a floor surface of a bed body, and a mat layer is laid on the air mat. The air mat has an air chamber extending in the entire length direction of the bed in a bed width direction. A vertical air chamber mat formed by arranging a plurality of air chambers in parallel with each other, and a horizontal air chamber mat formed by arranging a plurality of air chambers extending in the bed width direction along the entire length of the bed in a vertically stacked manner, and The air chambers that make up the air chamber mat,
The right and left air chambers are divided into a right air chamber and a left air chamber around the center of the floor, and the left and right air chambers and the horizontal air chamber mat of the vertical air chamber mat are supplied and exhausted with air supply and exhaust functions. A bed device connected to the device and configured so that each air chamber can be individually expanded and contracted. 3. The bed apparatus according to claim 1, further comprising a guide mechanism for guiding the mat layer to move up and down.