JP2002078756A - Bed and wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed capable of providing the state of lying on the bed and the state of sitting on a wheelchair without moving the body between the bed and the wheelchair. SOLUTION: This device is provided with a wheelchair 2, in which a body supporting part 5 loaded on a wagon 4 can provide both a seat-like posture S for supporting a person P in the sitting state and a bed-like posture B for supporting the person P in the lying state, and a bed frame 3 to be coupled with the wheelchair 2 for forming a bed 1 together with the body supporting part 5 in the bed-like posture B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed. The invention also relates to a wheelchair and a bed frame forming said bed.

[0002]

2. Description of the Related Art It is often difficult for a person using a wheelchair to move from a normal bed to a wheelchair by himself or from a wheelchair to a bed. Similarly, when a caregiver transfers the body of a person who needs a wheelchair from a normal bed to a wheelchair, or from a wheelchair to a bed, there is a similar difficulty.

[0003]

In this case, the above problem can be solved if a state of lying on the bed and a state of sitting on the wheelchair can be obtained without moving the body between the bed and the wheelchair.

The present invention has been made in view of the above circumstances, and provides a bed and a wheelchair in which a state of lying on a bed and a state of sitting on a wheelchair can be obtained without moving a body between the bed and a wheelchair. And a bed frame.

[0005]

In order to solve the above-mentioned problems, a bed according to the present invention has a body-supporting portion mounted on a carriage and a seat-like posture in which a person is supported in a sitting state, and the person lays down. And a bed frame capable of changing its posture, and a bed frame combined with the wheel chair to form a bed together with the body support in the couch posture. Item 1).

In the present invention, when a user sitting in the wheelchair is caused to lie down, the posture of the body supporting portion of the wheelchair is changed from the seat-like posture while the user is on the wheelchair. Change to the couch-like posture and couple the wheelchair with the bed frame. on the other hand,
When the user is to be laid down from the lying state to the state of sitting on the wheelchair, the connection between the wheelchair and the bed frame is released, and the body supporting portion of the wheelchair is moved while the user is still on. The posture is changed from the bed-like posture to the seat-like posture.

As described above, according to the present invention, a state of lying on a bed and a state of sitting on a wheelchair can be obtained without moving the body of the user between the wheelchair and the bed. Therefore, there is no physical burden on the user and no burden on the caregiver, which is preferable.

In the bed having the above structure, the wheelchair includes a lifter for supporting the body supporting portion so as to be able to move up and down on the carriage, and the notch formed as a passage of the lifter when the bed frame is connected to the wheelchair. (Claim 2). in this case,
For example, raising the body support portion on the carriage by the lifter, moving the wheelchair so that the lifter passes through the notch of the bed frame,
The wheelchair and the bed frame are connected to each other and the connection is released.

Further, if the direction of the body supporting portion with respect to the carriage can be changed at least 90 degrees when viewed from above (claim 3), the wheelchair can be moved from a lateral direction perpendicular to the length direction of the bed frame. It can be moved forward and coupled to the bed frame.

[0010] Further, the body support portion may include a seat portion and a back portion connected to the seat portion so as to be able to move up and down, and the wheelchair may have an actuator for raising and lowering the back portion. (Claim 4).

Next, a wheelchair according to the present invention is a component of the bed according to the present invention, and includes a cart, and a body supporting portion mounted on the cart, wherein the body supporting portion is provided for a person. The posture can be changed between a seat-like posture for supporting a sitting state and a couch-like posture for supporting a person in a lying state (claim 5).

[0012] The wheelchair may be provided with a lifter for supporting the body supporting portion on the carriage so as to be able to move up and down (claim 6).

Further, in the wheelchair, the orientation of the body supporting portion with respect to the carriage can be changed at least 90 degrees (claim 7).

Further, in the wheelchair, the body supporting portion includes a seat portion and a back portion connected to the seat portion so as to be able to move up and down, and the back portion is provided between the seat portion and the back portion. May be provided with an actuator for raising and lowering (claim 8).

The bed frame according to the present invention constitutes the bed according to the present invention together with the wheelchair according to the present invention, and includes a bogie and a body support supported on the bogie via a lifter so as to be able to move up and down. The body support unit is coupled to a wheelchair capable of changing its posture into a seat-like posture for supporting a person in a sitting state and a couch-like posture for supporting a person in a lying state. A bed frame that forms a bed together with a support portion, the bed frame including a cutout portion that becomes a passage for the lifter when the bed frame is coupled to the wheelchair.

[0016]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a bed according to one embodiment of the present invention, FIG. 2 is a perspective view of a wheelchair according to one embodiment of the present invention forming the bed, and FIG. It is a side view of 2 wheelchairs.

Referring to FIG. 1, a bed 1 according to the present embodiment includes a wheelchair 2 and a bed frame 3, which are connected to each other to form the bed 1. FIG. 1 shows a state before the wheelchair 2 and the bed frame 3 are combined. The wheelchair 2 shown in FIG. 1 is in a state in which the wheelchair 2 in the seat-like posture S shown in FIG. 2 has its posture changed to a bed-like posture B in order to couple with the bed frame 3. It is.

As shown in FIG. 2, the wheelchair 2 includes a cart 4 and a body support 5 mounted on the cart 4. The trolley 4 has a pair of left and right front wheels 6,6 and a pair of right and left rear wheels 7,7.
7, 7, it is possible to move on the floor surface. The pair of left and right front wheels 6, 6 are wheels having smaller diameters than the pair of left and right rear wheels 7, 7, and are caster-type wheels whose directions can be freely changed. On the other hand, in the present embodiment, the orientation of the pair of left and right rear wheels 7, 7 is fixed.

The wheelchair 2 may be a hand-operated type in which a caregiver pushes the wheelchair, or a user who rides on the wheelchair 2 operates an operating member such as a switch (not shown) at hand. It may be of an automatic traveling type in which a prime mover not controlled is driven to travel.

In the wheelchair 2, the body support 5
Has a lateral width similar to that of a normal wheelchair seat, and can be changed to a seat-like posture S for supporting a person in a sitting state and a couch-like posture B for supporting a person in a lying state. ing. The posture of the wheelchair 2 shown in FIG. 1 is the bed-like posture B, and the posture of the wheelchair 2 shown in FIG.

In the present embodiment, the body support 5
The seat 8 includes a seat 8 that supports the buttocks of the user, a back 9 that supports the back of the user, and a foot support 10 that supports the feet of the user. The back 9 and the foot support 10 are attached so that their postures can be changed.

More specifically, as shown in FIG. 3, the back portion 9 has an upright posture S1 standing upright with respect to the seat portion 8, and a lying posture B1 which forms the same plane as the seat portion 8.
The hinge 11 is connected to the seat 8 so that the posture can be changed. On the other hand, the foot support 10
Is a hanging posture S2 that hangs down from the seat portion 8, a horizontal posture B2 that forms the same plane as the seat portion 8,
The hinge is connected to the seat 8 so that the posture can be changed. The back part 9 is in the standing posture S
1, the state in which the foot support 10 takes the hanging posture S2 is the seat-like posture S of the body support 5, the back 9 takes the lying posture B1, and the foot support 10 Is the bed-like posture B of the body support 5.

The foot support 10 is integrally provided with a footrest 10a which can be pulled out only when necessary.
As shown in FIGS. 2 and 3, the footrest portion 10 is projected from the foot support portion main body 10b when the foot support portion 10 assumes the hanging posture S2. A user of the wheelchair 2 sits on the seat 8 and places his or her feet on the footrest 10a. When the foot support 10 is moved from the hanging posture S2 to the horizontal posture B2, the footrest 10a is folded and stored within the contour of the foot support main body 10b.

As is clearly shown in FIG.
Moves the back part 9 between the standing posture S1 and the lying posture B
1, a pair of right and left back-tilt drive linear motion actuators 13 are provided as a drive source for changing the posture. In the present embodiment, actuator support arms 14, 14 are provided at the left and right ends of the rear part of the lower surface of the seat part 8 and the left and right ends of the lower part of the back part of the back part 9, respectively. In contrast, both ends of the back tilt drive linear motion actuator 13 are connected to each other so as to be relatively rotatable.

The back-tilt drive linear motion actuator 13 may be an electric actuator or a hydraulic actuator. The back tilt drive linear motion actuator 13 also functions as back posture holding means for holding the back 9 in the standing posture S1 and the lying posture B1.

As shown in FIGS. 1 and 3, the wheelchair 2 includes a pair of right and left clasps 15, as a foot support portion holding means for holding the foot support portion 10 in the horizontal position B2. 15 are provided. By attaching the clasp 15 between the front portions of the left and right sides of the seat portion 8 and the rear portions of the left and right sides of the foot support portion 10, and fixing the clasp 15 to both of them with detachable pins 16. , The foot support 10
It is held in the horizontal posture B2 with respect to the seat portion 8. If the clasp 15 is removed, the foot support portion 10 hangs down by its own weight and assumes the hanging posture S2. Therefore, the foot support portion 10 is fixed to the bogie 4 with an appropriate type of fastener (not shown). If the foot support 10 is in the hanging posture S2
Is held. Note that, similarly to the back portion 9, the posture of the foot support portion 10 may be automatically changed using a drive source such as a linear motion actuator.

The body supporting portion 5 is supported on the carriage 4 by a linear motion actuator 17 as a lifter so as to be able to move up and down. When the elevating drive linear motion actuator 17 extends, the body support 5 is lifted. When the elevating drive linear motion actuator 17 contracts, the body support 5 is lowered. The elevation drive linear motion actuator 17 may be an electric actuator or a hydraulic actuator. As the lifter, in addition to a linear motion actuator, an X-shaped link or the like whose crossing angle can be freely changed can be adopted.

The direction of the body supporting portion 5 can be changed at least 90 degrees on the carriage 4 when viewed from above. In the wheelchair 2, FIG. 1 shows a state in which the body supporting unit 5 in the couch-shaped posture B shown by a virtual line in FIG. It is the state of the wheelchair shown. The rotation of the body supporting portion 5 may be performed manually or by power using an appropriate motor.

The raising and lowering and rotation of the body supporting portion 5 and the change of the posture of the body supporting portion 5 are performed by operating members such as switches (not shown) provided on the wheelchair 2 so that a user or a caregiver of the wheelchair 2 can use it. This may be performed, or the caregiver may perform remote control using a remote controller.

As shown in FIG. 2, the wheelchair 2 has a pair of left and right armrests 18, 18 which are detachable. In the present embodiment, the pair of left and right armrests 18, 18
Is attached to the seat portion 8 when the body supporting portion 5 takes the seat-like posture S, and is removed from the seat portion 8 when the body supporting portion 5 takes the couch-like posture B.

As also shown in FIG.
Is an operation handle 19 that is detachable or removable.
It has. When the caregiver changes the posture of the body supporting portion 5 from the couch posture B to the seat posture S,
The operation handle 19 is attached or the operation handle 19 is pulled out, the hand is put on the operation handle 19, and the wheelchair 2 is pushed and pulled or steered. In the present embodiment, a concave portion 20 for storing a handle is formed on the back surface of the back portion 9, and the operating handle 19 is attached to the concave portion 20 for storing a handle so as to be freely taken in and out. The upper part 19a of the operation handle 19 is freely bendable to the rear of the wheelchair 2 so that the caregiver can easily put his / her hand.

Next, the bed frame 3 will be described with reference to FIG. The bed frame 3 includes a pair of left and right side frames 20, 20 extending along the length direction of the bed frame 3, and a pair of front and rear side frames 21, which connect the pair of left and right side frames 20, 20 to each other. 21, end boards 22, 22 rising from the pair of front and rear side frames 21, 21, and four legs 23, 23, 23, 23.
And A space C surrounded by the pair of left and right side frames 20 and 20 and the pair of front and rear side frames 21 and 21 is positioned above the body supporting portion 5 of the wheelchair 2 in the couch-like posture B without a large gap. It is a size and a shape that can be fitted from the inside. That is, the bed frame 3 has a shape obtained by hollowing out a central portion of a normal bed by a size corresponding to the shape of the body supporting portion 5 in the bed shape B of the wheelchair 2. .

The pair of left and right side frames 20, 20 are in the same plane as the body supporting portion 5 when the side frames 20, 20 are coupled to the wheelchair 2, and are in the couch posture B. It has a function to extend the left-right width to the same width as a general bed. Therefore, the pair of left and right side frames 2
0,20, the body support 5 of the wheelchair 2
Similarly, a cushion material suitable for the upper surface of the bed is provided.

The pair of front and rear side frames 21 and 21 support both ends in the length direction of the body supporting portion 5 in the couch posture B, that is, the back portion 9 and the foot supporting portion 10. A pair of supports 24, 24 are provided.

The bed frame 3 is provided with a notch 25 which is a passage for the linear motion actuator 17 for driving the elevation of the wheelchair 2 when the bed frame 3 is connected to the wheelchair 2 in the bed posture B. In the present embodiment, the notch 25 is formed at the center of any one of the pair of left and right side frames 20. Therefore, in the present embodiment, as shown in FIG. 1, the wheelchair 2 approaches the bed frame 3 from a lateral direction perpendicular to the length direction of the bed frame 3, and 3 will be combined.

A method of using the bed 1 according to the present embodiment formed as described above will be described with reference to FIGS. FIGS. 4 to 8 show the bed frame 3 and the wheelchair 2 joined together to form the bed 1.
3 shows a series of operations of the bed 1 until the user P lying on the bed 1 is released and the user P is lying on the wheelchair 2.

In FIG. 4, the wheelchair 2 is connected to the bed frame 3 in a state where the body supporting portion 5 is in the bed posture B. In this state, each end of the back 9 and the foot support 10 is supported by the support 24. From this state, first, as shown in FIG.
The pair of left and right armrests 18, 18 which have been removed up to that point are attached to the seat 8 of the wheelchair 2.

Next, the lifting drive actuator 17
Is actuated to lift the body support 5. As a result, the body supporting portion 5 rises in the couch posture B, and the connection between the body supporting portion 5 and the bed frame 3 is released in the vertical direction.

Therefore, as shown in FIG. 5, the body support 5 is rotated by 90 degrees on the carriage 4 so that the longitudinal direction of the body support 5 and the front-back direction of the carriage 4 coincide with each other. . Then, as shown in FIG. 6, the carriage 4 is moved to separate the wheelchair 2 from the bed frame 3. At this time, the body supporting portion 5 is located above the pair of left and right side frames 20, 20 of the bed frame 3, and the linear motion actuator 1 for driving up and down.
7 passes through the notch 25 of the bed frame 3, so that the wheelchair 2 remains in the couch-like posture B,
It is possible to get out of the bed frame 3 smoothly.

When the wheelchair 2 is separated from the bed frame 3, the posture of the body supporting portion 5 is changed to the seat-like posture S as shown in FIGS.

In the above series of operations, the turning operation of the body supporting portion 5 may be performed after the wheelchair 2 comes out of the bed frame 3 to the outside.
Further, the wheelchair 2 may be pulled out of the bed frame 3 to the outside in a state where only the back portion 9 is raised from the bed-like posture B.

The operation of connecting the wheelchair 2 in the seat-like posture S to the bed frame 3 in the bed-like posture B is the reverse of the flow described above.

That is, the position of the wheelchair 2 in the seat-like posture S is changed to the bed-like posture B, and the body support 5 is lifted up. The notch 25
So that the carriage 4 passes through the bed frame 3
Move down. Then, the body supporting portion 5 of the wheelchair 2 is rotated by 90 degrees, and the linear motion actuator 17 for driving up and down is contracted. Thereby, the body supporting part 5 is lowered, and the pair of left and right side frames 20, 20 of the bed frame 3 and the pair of front and rear side frames 21,
21 in the space C surrounded by the side frames 20,
The body support 5 is positioned so that the same plane as 20, 21, 21 is formed.

As described above, according to the bed 1 according to the present embodiment, the bed 1 includes the wheelchair 2, and the wheelchair 2 has the seat-like posture S and the bed-like posture B. Therefore, the user P does not need to move his body between the wheelchair 2 and the bed 3. For this reason, no extra burden is imposed on the user or the caregiver at all. The bed frame 3 includes the notch 25, and the linear motion actuator 17 for raising and lowering the wheelchair 2 can pass freely through the bed frame 3. Therefore, the bed frame 3 is connected and separated from the bed frame 3. There is an advantage that it does not hinder the operation of.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bed according to an embodiment of the present invention.

FIG. 2 is a perspective view of a wheelchair according to one embodiment of the present invention forming the bed of FIG. 1;

FIG. 3 is a side view of the wheelchair of FIG. 2;

FIG. 4 is a perspective view showing a part of a series of operations of the bed until the user lying on the bed in FIG. 1 is seated on a wheelchair.

FIG. 5 is a perspective view showing a part of a series of operations of the bed until the user lying on the bed in FIG. 1 is placed in a wheelchair.

6 is a perspective view showing a part of a series of operations of the bed until the user lying on the bed in FIG. 1 is placed in a wheelchair.

7 is a perspective view showing a part of a series of operations of the bed until the user lying on the bed in FIG. 1 is placed in a wheelchair.

FIG. 8 is a perspective view showing a part of a series of operations of the bed until the user lying on the bed in FIG. 1 is placed in a wheelchair.

[Explanation of symbols]

Reference Signs List 1 bed 3 bed frame 4 trolley 5 body support 8 seat 9 back 13 actuator (linear motion actuator for tilting back drive) 17 lifter (linear motion actuator for vertical drive) 25 notch B bed-like posture P person (user) S seating posture

Claims (9)

[Claims] A body support (5) mounted on a cart (4) supports a person (P) in a seated posture (S) for sitting and a person (P) in a lying position. A bed (1) with a bed-like posture (B), a posture-changeable wheelchair (2), and the body support (5) combined with the wheelchair (2) and in the bed-like posture (B) And a bed frame (3) forming the bed. 2. The wheelchair (2) includes a lifter (17) for supporting the body support (5) on the carriage (4) so as to be able to move up and down, and the bed frame (3) includes a wheelchair ( The bed according to claim 1, characterized in that it comprises a notch (25) which, when combined with 2), provides a passage for the lifter (17). 3. The bed according to claim 2, wherein the direction of the body support (5) with respect to the carriage (4) can be changed by at least 90 degrees when viewed from above. 4. The body support (5) comprises a seat (8).
And a back part (9) connected to the seat (8) so as to be able to move up and down, and the wheelchair (2) is provided with an actuator (13) for moving the back part (9) up and down. The bed according to claim 1, 2, or 3. 5. A trolley (2), and a body support (5) mounted on the trolley (2), wherein the body support (5) is provided.
In a seat-like posture (S) for supporting a person (P) in a sitting state
And a bed-like posture (B) for supporting a person (P) in a lying state. 6. The wheelchair according to claim 5, further comprising a lifter (17) for supporting the body support (5) on the carriage (2) so as to be able to move up and down. 7. The wheelchair according to claim 6, wherein the direction of the body support (5) with respect to the carriage (2) can be changed by at least 90 degrees. 8. The body support (5) comprises a seat (8).
And a back (9) connected to the seat (8) so as to be able to undulate. The back (9) is raised and lowered between the seat (8) and the back (9). The wheelchair according to claim 5, 6 or 7, comprising an actuator (13) to be activated. 9. A trolley (4), and a body support (5) supported on the trolley (4) via a lifter (17) so as to be able to move up and down. A wheelchair (2) that can change its posture into a seat-like posture (S) that supports the person (P) in a sitting state and a bed-like posture (B) that supports the person (P) in a lying state. A bed frame (3) forming a bed (1) together with the body support (5), wherein a notch (25) serving as a passage for the lifter (17) when coupled to the wheelchair (2) is provided. Become a bed frame.