JP2002011050A - Wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair with reduced load for a caregiver to let a person cared get on and off it. SOLUTION: A seat chair 4 is supported by a frame main body 1 having wheels 2 at bottom for free movement up and down, and frames 6, 6 are extended in two ways from both ends of the bottom part of the frame main body 1 so as to form an open space between the seat chair. A wheel 7, 7 are provided at rear end part of each frame 6, 6, and further, an armrest part 9 and a back plate 10 are fitted at both left and right sides of the top part of the frame main body 1 in free rotational movement forward with the both ends as a rotation center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair, and more particularly to a wheelchair suitable for a patient with a severe disease requiring a caregiver or a disabled person with a disability.

[0002]

2. Description of the Related Art A patient or a handicapped person (hereinafter referred to as a cared person) who is unable to walk or stand alone by himself / herself needs help from a carer when getting on or off a wheelchair from a bed or a car. In general, a wheelchair has a configuration in which a chair with wheels is provided with an armrest and a back plate (backrest). You have to put it on and off. For this reason, the weight of the cared person is always a heavy burden on the caregiver, and by repeating this for a long period of time, the lower back is hurt and this is a kind of occupational disease.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a wheelchair capable of reducing the load on a caregiver when getting on and off a cared person.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a seat chair is supported on a frame body having wheels at a lower portion so as to be movable up and down, and the seat is moved rearward from both ends of a lower portion of the frame body. Extend the frame bifurcated so as to form an open space between the chair, provide a wheel at the rear end of each frame, and on the left and right sides of the upper frame body,
An armrest and a back plate are provided, each of which is rotatable forward with the both sides as a center of rotation.

According to another aspect of the present invention, a chair is supported on a frame body having wheels at a lower portion so as to be vertically movable, and is opened rearward from both ends of the lower portion of the frame body to the chair. The frame is extended in a forked shape so as to form a space, wheels are provided at the rear end of each frame, and armrests and backboards are provided at the left and right sides of the seat, respectively, and these armrests are provided. The back plate is alternately foldable between a position where it falls down at the same height as the chair and a position where it stands up.

As described above, in the wheelchair of the present invention, since the chair can be moved up and down, the height of the chair is adjusted to the height of a bed or an automobile seat (hereinafter referred to as a bed or the like). Can be adjusted. In addition, since the open space is provided between the chair and the lower frame with wheels, the frame with wheels can be inserted below the bed or the like, and the chair can be pushed into the upper surface of the bed or the like. In addition, the care receiver can be put in and out of a bed or the like without placing a great burden on the caregiver while the care receiver is on the chair.

In addition, when the cared person is to get on and off the bed or the like while sitting on the chair, in the former invention, the armrest or the back plate is placed on the front side of the chair (the side opposite to the bed or the like). ), And in the latter invention, the armrests and the backboard can be folded to the same height as the chair, so that the care receiver on the chair can get on and off the bed or the like. Can be easier.

[0008]

FIG. 1 shows an example of a wheelchair according to the present invention.

In the wheelchair 20 shown in FIG. 1, a pair of left and right foot rests 14, 14
Are fixed so as to extend forward, and caster-type wheels 2, 2 are attached to both ends, respectively. The caster-type wheel 2 facilitates steering by swinging freely. Also, a brake pedal 3 is attached to each wheel 2 so that braking can be performed by stepping on the brake pedal from above. As the size of the wheel 2, a wheel having a diameter of about 5 to 15 cm is preferably used.

A chair 4 is supported on the upper portion of the frame body 1. The frame 1a of the frame body 1 moves up and down by rotating the handle 5, and the height of the chair 4 is adjusted by the up and down movement. At the center of the chair 4, a lid 4a is slidably mounted back and forth.
When the lid 4a is slid forward, a toilet hole is opened at the center of the chair 4 so that the user can use the toilet while sitting.

On both sides of the chair 4, grooves 13a,
Wheel mounting rails 13, 13 partitioned into 13a are formed. As will be described later, the self-propelled wheels 15 can be detachably mounted on the rails 13, 13.

Two left and right frames 6, 6 are fixed to the lower left and right sides of the frame main body 1 in a bifurcated manner and extend rearward. Wheels 7, 7 are attached to the rear ends of the frames 6, 6, respectively. Between the forked frames 6, 6 and the lower surface of the seating chair 4, a U-shaped open space is formed in a side view, and the rear side and both left and right sides are completely open. As the size of the wheel 7, similarly to the front wheel 2, a wheel having a diameter of about 5 to 15 cm is preferably used.

On the left and right sides of the upper part of the frame body 1,
Armrests 9, 9 and backboard 1 via frames 8, 8 respectively
In addition, hand grips 11, 11 are provided at the rear ends of the frames 8, 8, respectively. The left and right frames 8, 8 are rotated about the right and left sides of the upper portion of the frame body 1 by rotation operations of the handles 12, 12, respectively. That is, FIG.
As shown in (A) and (B), the frame 8 to which the armrests 9 and the backboard 10 are fixed is moved between the regular position on both sides of the seat 4 and the position rotated 180 ° forward from the regular position. It is possible to rotate alternately as shown by arrows.

Although the wheelchair of FIG. 1 is designed for a severely cared person, even a severely cared person may
In particular, for a cared person who can use an arm, the self-propelled wheel can be detachably used.

FIGS. 3A and 3B show an example in which self-propelled wheels are mounted on the wheelchair of FIG.

The self-propelled wheel 15 has a ring-shaped rowing handle 15a concentrically fixed to the outer surface and is rotatably supported by a support shaft 17 fixed to a chassis 16. The chassis 16 has fitting portions 16 on both sides.
a, 16a, and these fitting portions 16a, 16a are fitted into the wheel mounting rails 13, 13 of the chair 4 on the wheelchair side,
It can be assembled. After the fitting portions 16a, 16a of the chassis 16 are assembled, the self-propelled wheels 15 are mounted on the wheelchair 20 by fastening the fastening screws 18, 18 from outside. When detaching the self-propelled wheel 15, the reverse operation may be performed.

The operation of mounting and dismounting the self-propelled wheels 15 may be performed while the wheelchair body is slightly lifted off the road surface by the actuator. When the self-propelled wheels 15 are mounted, it is preferable that the rear wheels 7 of the wheelchair be slightly away from the road surface by a distance e. The distance e is 5
mm.

FIGS. 4 (A) to 4 (E) exemplify an operation when a care receiver is put on a wheelchair of the present invention from a bed.

First, as shown in FIG. 4A, the arm 8 (the armrest 9 and the back plate 10) is rotated toward the front side of the wheelchair 20.
Next, by turning the handle 5, the chair 4 is temporarily moved to a position higher than the upper surface of the bed B.

Next, since there is an open space between the seat 4 and the lower forked frame 6, 6, FIG.
As shown in (B), the wheel 7 is inserted under the bed B, and the chair 4 is inserted into the upper surface of the bed B. Further, as shown in FIG. 4C, the care receiver P (patient) is turned sideways, and is inserted further deeply to a position where the end of the chair 4 approaches the back of the care receiver P. In this state, when the care receiver P is returned to the back like a chain line, the care receiver P is placed on the chair 4.

Next, after the care receiver P's foot is rotated by 90 ° toward the footrest plate 14, the upper body is raised as shown in FIG. 4 (D). Then, the arms 8 (the armrests 9 and the backboard 10) moving to the front side of the wheelchair 20 are returned to the regular positions on both sides of the seating chair 4 as shown by a chain line, and FIG.
The care receiver P is put in the wheelchair 20 as shown in FIG.

As described above, the caregiver can carry out the operation with little or no direct holding of the cared person P until the cared person P is put on the wheelchair 20 from the bed B. The operation of moving the vehicle from the wheelchair 20 to the bed B may be performed in a reverse manner.

FIGS. 5 (A) and 5 (B) illustrate a case where the cared person is put on the back seat of a car from a wheelchair.

First, as shown in FIG. 5A, the door D of the car C is opened, and the chair 4 of the wheelchair 20 carrying the care receiver P is opened.
Is adjusted to the height of the rear seat S of the vehicle C. Next, have the care receiver P lean forward,
The arm 8 (the armrest 9 and the back plate 10) is rotated to the front side of the wheelchair 20, and the back seat S
Face backwards on the side of.

Next, as shown in FIG. 5 (B), the chair 7 on which the care receiver P is placed is placed on the upper surface side of the rear seat S such that the wheels 7 of the wheelchair 20 are made to enter under the floor of the car C. Press When the cared person P enters the inside of the car C, the carousel P is rotated by 90 ° so that the foot is directed forward, and then the seat is laid down sideways, and the chair 4 is pulled out from the rear seat S. . After the chair 4 is pulled out, the cared person C can be put on the car C by returning the cared person P lying down in the car to the upright state on the rear seat S. When unloading from the car, the reverse operation may be performed.

FIGS. 6 and 7 illustrate a case where a toilet is used while a care receiver is on a wheelchair. FIG. 6 shows a case where the depth of the toilet is shallow (short).
FIG. 7 shows a case where the depth of the toilet for a wheelchair is deep (long).

In the wheelchair 20 of the present invention, since the frames 6, 6 at the lower portion of the frame main body 1 are bifurcated, the toilet bowl is interposed between the bifurcated frames 6, 6 in both cases of FIGS. The wheelchair 20 is retracted so as to sandwich T, so that the seat 4 is invaded above the toilet T. Next, if the lid 4a is pulled out to open the stool hole, the care receiver P can use it.

When the depth of the toilet T is shallow as shown in FIG. 6, the arm 8 (the armrest 9 and the back plate 9) as shown in FIG. 6 (B) so that the back plate 10 does not hit the backrest Ta of the toilet T. 1
0) may be opened slightly to both sides from the regular position. Further, in the case of a deep toilet T for a wheelchair, as shown in FIG. 7, even if the arm 8 (the armrest portion 9 and the backboard 10) is kept at the normal position, the backboard 10 may hit the backrest Ta. There is no.

FIG. 8 shows a wheelchair according to another embodiment of the present invention.

The wheelchair 20 of this embodiment is different from the wheelchair of FIG. 1 in the structure of the armrest 9 'and the back plate 10'.

The left and right armrests 9 ', 9' are connected to both sides of the seat 4 so as to form parallel links via a pair of front and rear links 22, 23, respectively, as shown in FIG. 9 (A). As shown in FIG. 9 (B), the seat can be folded alternately between a position where it stands up and a position where it falls down at substantially the same height as the upper surface of the chair 4. When in the upright position, the links 22 and 23 are held upright by a lock mechanism (not shown).

The rear link 23 of the pair of front and rear links is formed in an L-shape. This L-shaped link 23
The end opposite to the armrest 9 ′ side of the pivot shaft 23 a connected to the chair 4 is rotatably connected to the lower end of the side of the back plate 10 ′. . A latching link 24 is provided between the lateral side of the back plate 10 'and the rear end of the armrest 9' so as to be freely detachable. Therefore, the hooking link 24 is detached, and the armrest 9 'as shown in FIG.
When the back plate 10 ′ is in the lying position, the lower end of the back plate 10 ′ is pulled up by the L-shaped link 23, and is slightly overlapped with the rear end of the chair 4 and falls backward.

As described above, the arrangement is made such that the lower end of the back plate 10 'slightly overlaps with the rear end of the chair 4.
Although not essential in the present invention, such an overlap arrangement facilitates the operation of moving the care receiver from the back plate 10 'to the chair 4.

On the other hand, as shown in FIG. 10, the back plate 10 'rotatably supports a pair of rollers 26, 26 at both ends in a case 25 having one side open.
A belt 27 is wound endlessly between 6 and 26. Further, on the side surface of the case 25, the hand grip 11 is attached so as to be alternately switchable between a position protruding rearward and a position along the side surface of the case (see FIG. 8).

In the structure of the back plate 10 'described above, one or more intermediate rollers 28 may be disposed between the pair of front and rear rollers 26, 26 in order to prevent the belt 27 from becoming loose. Further, the belt 27 is preferably made of cloth since the care receiver P becomes a backrest. The cloth belt 27 is preferably coated with rubber on the inner surface in contact with the rollers 26 and 28, and the surfaces of the rollers 26 and 28 are also coated with rubber to prevent slippage.

The back plate 10 'is configured such that a number of rollers 29 are densely arranged in parallel and the belt is omitted, as in the embodiment shown in FIG. You may. The roller 29 is preferably made of a material having a high buffering property such as rubber or elastic resin on the surface.

The operation of getting the cared person on and off the bed or the like using the wheelchair of FIG.
It can be performed in the same manner as in the case of the wheelchair of FIG. However, the wheelchair shown in FIG. 8 has a structure in which the back plate 10 'can be folded at substantially the same height as the chair 4, and a structure in which the backrest portion does not provide resistance in the moving direction like a moving belt or a roller row. Therefore, the burden on the caregiver can be reduced.

FIG. 12 shows the wheelchair of FIG.
This is an example in which a care receiver is put on a bed.

First, the armrest 9 ′ of the wheelchair 20 and the back plate 1
0 ′ is folded so as to be substantially flush with the seating chair 4 and is made to stand by on the side of the bed B. Then, FIG.
(A-a, Ab), the care receiver P on the bed B
Is turned sideways, the wheelchair 20 is advanced,
Push the end of 0 'close to the back of the care receiver P.

From this state, FIG. 12 (Ba, Bb)
The care receiver P is placed on the back plate 10 'by returning the care receiver P to the back as shown in FIG. Next, FIG.
a, Cb), the care receiver P is moved in parallel to the chair 4 using the movement of the belt 27 of the back plate 10 ′, and the feet are further placed on the chair B on the chair 4. Is turned 90 ° so as to face the outside of.

Alternatively, instead of the above operation, FIG.
As in (Ba, Bb), the care receiver P placed on the backboard 10 ′ is rotated 90 ° so that the feet are directed outward on the backboard 10 ′, and then the foot is pulled. Belt 2
7, the care receiver P may be moved to the chair 4 side so that the position of the care receiver P is set to the state shown by the solid line in FIG. 12 (Ca, Cb).

Next, as shown in FIG. 12 (Da, Db), the care receiver P on the chair 4 is erected, and the armrest 9 ′ and the back plate 10 ′ are fixed upright. Then, the wheelchair 20 is pulled out of the bed B.

According to this wheelchair, the back plate 1
Since 0 ′ acts so as not to give frictional resistance to the movement of the care receiver P, the labor of the caregiver can be further reduced.

[0044]

As described above, according to the present invention, since the chair can be moved up and down, the height of the chair can be adjusted according to the height of the bed or the like. By providing an open space between the chair and the lower frame with wheels, the frame with wheels can be inserted into the lower part of the bed or the like and the chair can be pushed into the upper surface of the bed or the like. It is possible to get on and off the bed without placing a great burden on the caregiver while the person is on the chair. Also, when the care receiver is placed in a chair or the like while getting on or off a bed, the armrests and the backboard can be moved forward on the chair, or the armrests and the backboard can be moved to the chair. Since it is foldable to a height substantially equal to that of, the care receiver can be easily moved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a wheelchair of the present invention.

FIG. 2 is an explanatory diagram showing an operation of the wheelchair of FIG. 1,
(A) is a side view, (B) is a plan view.

3 shows a state in which self-propelled wheels are attached to the wheelchair of FIG. 1, (A) is a side view, and (B) is XX in (A).
It is an arrow view.

4 (A) to 4 (E) show a care receiver on a bed in FIG.
FIG. 4 is a process chart showing work to be put on a wheelchair in the order of work.

FIGS. 5A and 5B show a cared person on a car in FIG.
FIG. 4 is a process chart showing work to be put on a wheelchair in the order of work.

6A and 6B show a case where a care receiver put on the wheelchair of FIG. 1 uses a toilet; FIG. 6A is a side view, and FIG. 6B is a plan view.

FIG. 7 is a side view showing another example in the case where the care receiver puts on the wheelchair of FIG. 1 uses a toilet.

FIG. 8 is a perspective view showing another example of the wheelchair of the present invention.

9A and 9B are operation explanatory diagrams of the wheelchair of FIG. 8, in which FIG. 9A is a side view when the back plate or the like is standing up, and FIG.

FIG. 10 is a longitudinal sectional view of a back plate used in the wheelchair of FIG. 8;

11 is a longitudinal sectional view showing another example of the back plate used for the wheelchair of FIG.

FIG. 12 (Aa, Ab) to (Da, Db)
FIG. 9 is a process diagram showing the operation of placing the care receiver on the bed in the wheelchair of FIG. 8 in the order of operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame main body 2,7 Wheel 4 Seat chair 4a Lid 6 (bifurcated) frame 9,9 'Armrest 10,10' Back plate 13 Wheel mounting rail 15 Self-propelled wheel 16 Chassis 16a Fitting part 18 Fastening With screw

Claims (6)

[Claims] 1. A seat chair is vertically movably supported by a frame body having wheels at a lower portion, and an open space is formed between both ends of a lower portion of the frame body and the seat chair rearward. The frame is extended in a bifurcated manner, wheels are provided at the rear end of each frame, and an armrest and a back plate that are rotatable to the front side around the both sides as rotation centers are provided on the left and right sides of the upper portion of the frame body. Wheelchair attached. 2. A seat chair is vertically movably supported by a frame body having wheels at a lower portion thereof, and an open space is formed between both ends of the lower portion of the frame body and the seat chair rearward. The frame is extended bifurcated, wheels are provided at the rear end of each frame, and armrests and backboards are provided on both left and right sides of the chair, respectively. A wheelchair that can be folded alternately between a position where it falls down to the same height as a child and a position where it stands. 3. The wheelchair according to claim 2, wherein the back plate is formed by winding a belt around a pair of rollers endlessly. 4. The wheelchair according to claim 2, wherein the back plate is configured by densely arranging a plurality of rollers in parallel. 5. The wheelchair according to claim 1, wherein the seat chair is provided with a toilet hole and a lid for opening and closing the toilet hole. 6. The self-propelled wheel can be detachably attached to both sides of the seat chair.
Wheelchair described in.