JP2001170113A - Device for assisting standing of wheelchair and wheelchair having such device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a rising assist device for assisting standing to reduce the load of a caring person allowing a person to be cared to get on and off a wheelchair. SOLUTION: A sheet material for assisting standing is placed on a wheelchair so as to cover the seat and seat back of the wheelchair and the front part thereof is fixed to the wheelchair. A pair of the winding ropes connected to both side parts of the rear end on the sheet material are folded back at the upper part of the frame of the wheelchair and the folded-back winding ropes are taken up to apply rising force to assist standing to the person to be cared on the wheelchair.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair standing assist device and a wheelchair provided with the standing assist device.

[0002]

2. Description of the Related Art It is a physical burden on a caregiver that causes a caregiver to get on and off a wheelchair.
It is often necessary to support the overall weight of the care recipient,
May cause caregiver back pain and other causes.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a standing assist device which can reduce a physical burden on a caregiver when the care recipient is put on and off a wheelchair.

[0004]

SUMMARY OF THE INVENTION The present invention is based on the idea that when a care-requiring person is unloaded from a wheelchair, a force for standing the care-requiring person can be given by lifting the back from the seat.
The mechanism for lifting the back from the seat surface is realized with slight impossibility or modification to an existing wheelchair.

That is, in the aspect of the present invention, in the aspect of the device for assisting standing up of a wheelchair, a standing assist sheet material placed on at least the seat of the wheelchair; fixing means for fixing the front of the standing assist sheet material to the wheelchair; A pair of hoisting ropes connected to both sides of the rear end of the standing auxiliary sheet material; a pair of folded ropes supported on the upper part of the frame of the wheelchair; Winding means for winding up the passed hoisting rope.

Further, the present invention is directed to a wheelchair having a standing assist device, wherein left and right frames, large wheels rotatably supported by the left and right frames, a seat positioned between the left and right frames, and a seat back. A standing upholstery sheet material which is placed on at least the seat of the wheelchair and whose front end is fixed to a frame; a pair of hoisting ropes connected to both sides of the rear end of the uprighting auxiliary sheet material A pair of folded ropes supported on the upper part of the frame of the wheelchair;
And winding means for winding the hoisting rope having passed through the pair of folded rope bodies.

The winding means comprises, for example, a pair of winding wheels fixed coaxially with the left and right large wheels of the wheelchair, respectively.
A detachable means can be provided between the winding wheel and the end of the hoisting rope. The attaching / detaching means is provided, for example, at a number of winding pins fixed at the same circumferential position of the winding wheel in parallel with the axis of the large wheel, and at the tip of a hoisting rope which is hung on any of these winding pins. Can be configured with a hook.

Of course, the winding means may be constituted by an electric winding device. As a power source of the electric winding device, a battery of an electric wheelchair or a commercial power source can be used.

[0009] The winding means also includes a pair of rotating wheels fixed coaxially with the left and right large wheels of the wheelchair and rotating integrally with the large wheels.
A winding wheel fitted to the rotating wheel so as to be relatively rotatable and locking the end of the hoisting rope, and allowing the relative rotation of the fixed wheel and the winding wheel to be free or to rotate both wheels together. Locking means for locking can also be used.

[0010] The folded rope body is preferably formed of a pulley. However, since the winding length of the hoisting rope is short, the purpose can be achieved even with a simple bar.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS.
Reference numeral 0 denotes a left and right frame 11, on which a front caster 12 and a rear large wheel 13 are rotatably supported, respectively. In addition, a seat 14 and a seat back 15 are stretched between the left and right frames 11. The left and right frames 11 are foldably (contactably) connected by a plurality of folding links 16, and the seat 14 and the seat back 15 are made of a flexible material that does not hinder the folding. The seat 14 and the seat back 15 may be separate bodies or a series of members. The left and right frames 11 each include a substantially vertical member 11V located rearward, and a handle (grip) 17 bent rearward is formed at an upper end of the substantially vertical member 11V.

With respect to the wheelchair having the above-described basic structure, the upright assisting device of this embodiment is connected to the upright assisting sheet 20 laid on the seatback 15 from the seat 14 and to both sides of the rear end of the uprighting assisting seat 20. Pair of hoisting ropes 2
1. A pair of pulley units (rope folded bodies) 30 supported by the left and right substantially vertical members 11V, and a pair of pulley units, which return the pair of hoisting ropes 21 at the upper portions of the substantially vertical members 11V of the left and right frames 11. A winding means 40 for winding a pair of hoisting ropes 21 passing through the winding rope 30, and a hoisting rope 2 between the pulley unit 30 and the winding means 40.
1 is provided with a rope guide unit 50 fixed to the substantially vertical member 11V.

As shown in FIG. 3, the bracket 1 fixed to the frame 11
8 is fixed via a binding ring 22. The fixing of the front end of the erecting assisting sheet 20 may be performed by fixing means such as using a binding rope instead of the binding ring 22, and is not limited to the illustrated example.

The pulley unit 30 has a pulley 32 rotatably supported by left and right divided brackets 31. The division bracket 31 can be attached to and detached from the substantially vertical member 11V of the frame 11 by loosening the fixing screw 33. The substantially vertical member 11V is preferably provided with a projection 34 (FIG. 4) that comes into contact with the lower surface of the divided bracket 31 and prevents the pulley unit 30 from descending by welding or the like. The pulley unit 30 can adjust the direction of the pulley 32 by rotating the divided bracket 31 about the substantially vertical member 11V.

The rope guide unit 50 is, like the pulley unit 30, divided by left and right divided brackets 51.
It is formed with a rope guide hole 52, and can be attached to and detached from the substantially vertical member 11V by loosening the fixing screw 53. Like the projection 34, the substantially vertical member 11V
It is preferable to provide a projection 54 (FIG. 4) for abutting against the lower surface of the divided bracket 51 to prevent the rope guide unit 50 from descending by welding or the like. The rope guide unit 50 can adjust the position of the rope guide hole 52 by rotating the divided bracket 51 about the substantially vertical member 11V.

Winding means 40 for winding the hoisting rope 21 out of the rope guide hole 52 of the rope guide unit 50
Can be either electric winding means or manual winding means. In particular, in an electric wheelchair, an electric winding means using a mounted battery as a power source is possible. Or you may mount the electric winding means which operates with a commercial power supply for home use.

Next, a preferred embodiment in which the hoisting rope 21 can be wound up by moving the wheelchair 10 forward (or backward) will be described. As shown in FIGS. 3, 5 and 6, the axle 13S of the large wheel 13 has a take-up wheel 41 divided into two parts that can be attached to and detached from the axle 13S of the large wheel 13 of the existing wheelchair via a fixing bolt 42. , And is fixed so as not to rotate with the axle 13S. A number of take-up pins 43 are fixed to the take-up wheel 41 so as to be located on the circumference around the axle 13S. Winding pin 4
Numeral 3 is fixed to the winding wheel 41 by a fixing bolt 44 sandwiching the winding wheel 41. As shown in FIG. 6, a detent pin for screwing and fixing the winding pin 43 to the fixing bolt 44 is provided. And a small diameter portion 43b are formed. On the other hand, a hook 24 that can be hung on the small-diameter portion 43b is fixed to the tip of the hoisting rope 21 of the erecting assist sheet 20.

The present apparatus having the above configuration is used as follows. In a normal running state, the care-requiring person sits on the standing assistance sheet 20 placed on the seat back 15 from the seat 14 of the wheelchair 10, and the hook 24 at the tip of the hoisting rope 21.
Is removed from the winding means 40. In frame 11,
It is preferable to provide a hook for hooking the hook 24 in the running state. In this state, no force is applied to the hoisting rope 21 and there is no hindrance to normal running.

When the care-requiring person on the wheelchair 10 is to be erected, the hook 24 of the hoisting rope 21 is
Small diameter portion 43 of any of winding pins 43 on winding wheel 41
Hang on b. At this time, the user selects whether to raise the care-requiring person using the forward force given to the wheelchair 10 or to use the retreat force to stand up. When using the forward force, as shown in the solid line in FIG. 3 and FIG. The hoisting rope 21 is hung on the winding pin 43 from the front of the winding wheel 41 (left-hand winding in the figure), and when the retraction force is used, as shown by the chain line in FIG. It is hung on the winding pin 43 from the rear (right-hand winding in the figure).

In the case of using the forward force, when the caregiver advances the wheelchair 10 to rotate the large wheel 13, the large wheel 13
As a result, the winding wheel 41 rotating together with the winding rope 21 winds up the hoisting rope 21, so that the standing assist sheet 20 is raised, and the waist of the care-requirer sitting on the standing assist sheet 20 is raised. Therefore, another caregiver can hold the care-requiring person by holding the care-requiring person. Compared to the case where the caregiver supports and stands up the entire weight of the care-requiring person, the usefulness of the standing-up assist device is understood.

In the case of using the retreating force, a similar assisting force can be applied only by changing the winding direction of the hoisting rope 21 around the winding wheel 41. The above explanation is about the case where the care recipient is taken off the wheelchair 10.
It can be seated on the top, as well as reduce the burden on the caregiver.

FIGS. 7 and 8 show another embodiment of the winding means 40 used for the wheelchair (standing assist device) of the present invention. A rotating wheel 45 that rotates integrally with the large wheel 13 is fixed to each of the axles 13S of the left and right large wheels 13, and a winding wheel 46 is fitted so as to be rotatable relative to the fixed wheel 45. In order to provide the rotating wheel 45 and the winding wheel 46 on the axle 13S of the existing wheelchair, a divided structure is necessary,
This division structure does not matter.

A number of lock pin holes 45a are formed at the same circumferential position on the rotating wheel 45, while the winding wheel 46 can be engaged with any of these lock pin holes 45a. A lock pin hole 46a is formed. When the lock pin 47 is inserted across the lock pin hole 45a and the lock pin hole 46a, the rotating wheel 45 and the winding wheel 46 rotate integrally, and when the lock pin 47 is removed, the rotating rotating wheel 45 rotates.
In contrast, the winding wheel 46 slides and does not rotate.

The winding wheel 46 has a winding groove 46b on its peripheral surface.
The leading end of the hoisting rope 21 is located in the winding groove 46b and is hung by a pin 48. The length of the hoisting rope 21 is determined so that the upright assisting seat 20 is hooked on the winding wheel 46 (pin 48) with some play in a state where the upright assisting seat 20 extends from the seat 14 of the wheelchair 10 to the seatback 15.

In this embodiment, therefore, the lock pin 47 is inserted into the lock pin hole 45 of the rotating wheel 45 in a normal running state.
a and the lock pin hole 46a of the winding wheel 46. In this state, the winding wheel 46 can freely rotate relative to the rotating wheel 45, so that there is no obstacle to normal running.

When the care-requiring person on the wheelchair 10 is to be raised, the lock pin 47 is fitted over the lock pin hole 45a of the rotating wheel 45 and the lock pin hole 46a of the winding wheel 46. Then, since the relative rotation between the rotating wheel 45 and the winding wheel 46 cannot be performed, and both the wheels rotate integrally, the caregiver rotates the large wheel 13 by moving the wheelchair 10 forward or backward as in the previous embodiment. As a result, the winding wheel 46 that rotates together with the large wheel 13 winds up the hoisting rope 21, and as a result, the rising assist sheet 20 rises, and the waist of the care recipient in need sitting on the rising assist sheet 20 rises. Therefore, similarly to the previous embodiment, another caregiver can hold the care-requiring person, thereby bringing the care-requiring person upright. Also in this embodiment, the standing assist force can be given by either forward or backward movement of the wheelchair 10.

Instead of moving the wheelchair 10 forward or backward, the rear part of the frame 11 is jacked up, the large wheel 13 is separated from the ground (floor surface), and the large wheel 13 is manually rotated in this state. The same operation as described above can be provided. In addition, the rope guide unit 50
It may be omitted. The upright assisting sheet 20 preferably has a length that can be overlapped on the seatback 15 from the seat 14. However, if at least the upstanding assisting sheet 20 is overlaid on the seat 14, the above-described upstanding assisting operation can be given.

The upright assisting sheet 20 may be in any form, such as a mesh body, as long as it is sheet-shaped and has sufficient strength to support a care recipient. Also, it is clear that the present invention does not depend on the details of the structure of the wheelchair 10, and it does not matter whether the present invention is of a folding type. Further, in the above embodiment,
Although it was configured to be able to be constructed afterwards on an existing wheelchair, it is of course possible to equip the wheelchair with standard equipment. In this case, the pulley unit 30, the rope guide unit 50 and the winding means 40 are attached to the wheelchair 10. Can be fixedly provided.

When the winding means 40 is electrically driven, it is not essential to provide it in connection with the large wheel 13. For example, the electric winding unit connected to the hoisting rope 21
Irrespective of this, it can be mounted on the wheelchair 10.

[0030]

According to the present invention, it is possible to reduce the physical burden on the care giver when getting on and off the wheelchair.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a wheelchair having a standing assistance device according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a perspective view showing one embodiment of a wheelchair having the standing assistance device according to the present invention.

FIG. 4 is an enlarged view around the pulley and a rope guide.

FIG. 5 is a side view showing an embodiment around the winding wheel.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a side view showing another embodiment of the winding device.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Wheelchair 11 Frame 11V Almost vertical material 12 Caster 13 Large wheel 13S Axle 14 Seat 15 Seat back 16 Folding link 20 Standing auxiliary seat 21 Hoisting rope 22 Binding ring 24 Hook 30 Pulley unit (rope folded body) 31 Split bracket 32 Pulley 33 Fixed Screw 40 Winding means 41 Winding wheel 42 Fixing bolt 43 Winding pin 45 Rotating wheel 46 Winding wheel 45a 46a Lock pin hole 47 Lock pin 48 Pin 50 Rope guide unit 51 Split bracket 52 Rope guide hole 53 Fixing screw

Claims (12)

[Claims] 1. An upright assisting sheet material placed on at least a seat of a wheelchair; fixing means for fixing the front of the upstanding assisting sheet material to a wheelchair; A pair of hoisting ropes; a pair of folded ropes supported on the upper part of a frame of a wheelchair, which folds the pair of hoisting ropes; and a winding means for winding up the hoisting rope passing through the pair of rope folded bodies. A wheelchair standing assist device, comprising: 2. The standing assist device according to claim 1,
The winding means is composed of a pair of winding wheels fixed coaxially with the left and right large wheels of the wheelchair, and the upright of the wheelchair provided with a detaching means between these winding wheels and the tip of the hoisting rope. Auxiliary equipment. 3. The stand-up assist device according to claim 2,
The attaching / detaching means includes a number of winding pins fixed in parallel to the axis of the large wheel at the same circumferential position of the winding wheel, and a hook provided at the tip of the hoisting rope, which is hung on any of these winding pins. Wheelchair standing assist device consisting of: 4. The standing assist device according to claim 1, wherein
The winding means is a wheelchair upright assisting device which is an electric winding device. 5. The stand-up assist device according to claim 1,
The winding means includes a pair of rotating wheels fixed coaxially with the left and right large wheels of the wheelchair and rotating integrally with the large wheels, and a winding which is rotatably fitted to the rotating wheels and locks the end of the hoisting rope. A wheelchair standing-up assist device comprising: a take-up wheel; and a locking means for locking the relative rotation between the fixed wheel and the take-up wheel or for rotating the two wheels together. 6. The erecting assisting device according to claim 1, wherein the rope folded body is a pulley. 7. A wheelchair having left and right frames, large wheels rotatably supported by the left and right frames, and a seat and a seat back located between the left and right frames; An upright auxiliary sheet material mounted on the frame and having a front end fixed to the frame; a pair of hoisting ropes coupled to both rear ends of the uprighting auxiliary sheet material; a wheelchair frame that folds up the pair of hoisting ropes A wheelchair having a stand-up assist device, comprising: a pair of folded rope bodies supported at an upper part; and winding means for winding up a hoisting rope passing through the pair of folded rope bodies. 8. A wheelchair according to claim 7, wherein the winding means comprises a pair of winding wheels fixed coaxially with the left and right large wheels of the wheelchair, respectively, and the winding means is connected to the end of the hoisting rope. A wheelchair having an erecting assist device between which a detachable means is provided. 9. The wheelchair according to claim 8, wherein the attaching / detaching means comprises a plurality of winding pins fixed at the same circumferential position of the winding wheel in parallel with the axis of the large wheel, and hanging on any of these winding pins. A wheelchair having an upright assisting device including a hook provided at a tip of a hoisting rope to be stopped. 10. The wheelchair according to claim 7, wherein the winding means has an upright assisting device that is an electric winding device. 11. The wheelchair according to claim 7, wherein the winding means is fixed to the left and right large wheels of the wheelchair coaxially, and is rotatably fitted to the pair of rotating wheels which rotate integrally with the large wheels. And a locking means for locking the ends of the hoisting rope and locking them so that the relative rotation between the fixed wheel and the winding wheel is free or both wheels are rotated together. Wheelchair with a standing assist device. 12. The wheelchair according to any one of claims 7 to 11, wherein the folded-back rope body has an upright assisting device including a pulley.