JP4339474B2 - Wheelchair standing assistance device and wheelchair having standing assistance device - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a standing assist device for a wheelchair and a wheelchair provided with the standing assist device.
[0002]
[Prior art and its problems]
It is the physical burden of the caregiver that becomes a problem when getting on and off the wheelchair. Often it is necessary to support the overall weight of the care recipient, causing back pain and other causes for the caregiver.
[0003]
OBJECT OF THE INVENTION
An object of this invention is to obtain the standing assistance apparatus which can reduce the physical burden of the caregiver at the time of getting on and off a care recipient.
[0004]
Summary of the Invention
The present invention is based on the idea that, when the care recipient is lowered from the wheelchair, if the back is lifted from the seat surface, a force for raising the care recipient can be given, a mechanism for lifting the back surface from the seat surface, It is realized by slight impossibility or modification to the existing wheelchair.
[0005]
That is, the present invention provides a stand-up assisting sheet material that is placed on at least a seat of a wheelchair; a fixing means for fixing the front of the stand-up assisting sheet material to the wheelchair; A pair of hoisting ropes coupled to both sides of the rear end of the material; a pair of rope folding bodies supported on the upper part of the wheelchair frame for folding the pair of hoisting ropes; and hoisting through the pair of rope folding bodies A winding means for winding the rope.
[0006]
Further, according to the present invention, in the aspect of the wheelchair having the standing assist device, the left and right frames, the large wheels rotatably supported by the left and right frames, and the seat and the seat back positioned between the left and right frames are provided. Wheelchair; Standing assisting seat material placed on at least the seat of this wheelchair and having its front end fixed to the frame; A pair of hoisting ropes coupled to both sides of the rear end of the standing assisting seat material; A pair of rope folding bodies supported on the upper part of the wheelchair frame; and winding means for winding the winding rope that has passed through the pair of rope folding bodies.
[0007]
For example, the winding means is composed of a pair of winding wheels fixed coaxially with the left and right large wheels of the wheelchair, and a detaching means can be provided between the winding wheel and the tip of the hoisting rope. . The detaching means is, for example, provided at the end of the hoisting rope that is hooked on one of these winding pins and a number of winding pins fixed in parallel with the axis of the large wheel at the same circumferential position of the winding wheel. It can consist of hooks.
[0008]
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 is also fixed to the left and right large wheels of the wheelchair and is coaxially rotated with a pair of rotating wheels, and is fitted to the rotating wheels so as to be relatively rotatable and engages the end of the hoisting rope. It can also be constituted by a winding wheel and locking means for locking the fixed wheel and the winding wheel so that the relative rotation between them is free or both the wheels rotate together.
[0010]
The rope folded body is preferably composed of a pulley, but since the hoisting length of the hoisting rope is short, the object can be achieved even with a simple bar.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, the wheelchair 10 includes left and right frames 11, and a front caster 12 and a rear large wheel 13 are rotatably supported by the left and right frames 11, respectively. A seat 14 and a seat back 15 are stretched between the left and right frames 11. The left and right frames 11 are connected to each other by a plurality of folding links 16 so as to be foldable (contactable / separable), and the seat 14 and the seat back 15 are made of a flexible material that does not prevent the folding. The seat 14 and the seat back 15 may be separate members or a series of members. The left and right frames 11 include a substantially vertical member 11V located at the rear, and a handle (grip) 17 bent backward is formed at the upper end of the substantially vertical member 11V.
[0012]
For the wheelchair having the above basic structure, the standing assist device of the present embodiment includes a pair of standing assist seats 20 stacked on the seat back 15 from the seat 14 and a pair of both ends of the rear end of the standing assist seat 20. The pair of hoisting ropes 21 and the pair of hoisting ropes 21 supported by the left and right substantially vertical members 11V, and the pair of the hoisting ropes 21 are folded on the upper portions of the substantially vertical members 11V of the left and right frames 11. Winding means 40 for winding a pair of hoisting ropes 21 passed through the pulley unit 30 and a rope fixed to the substantially vertical member 11V for guiding the hoisting rope 21 between the pulley unit 30 and the winding means 40 A guide unit 50 is provided.
[0013]
As shown in FIG. 3, the left and right sides of the front end portion of the standing auxiliary seat 20 are fixed to a bracket 18 fixed to the frame 11 via a binding ring 22. The front end portion of the standing assisting sheet 20 can be fixed by a fixing means such as using a binding rope instead of the binding ring 22 and is not limited to the illustrated example.
[0014]
The pulley unit 30 is a unit in which a pulley 32 is rotatably supported by left and right divided brackets 31. The division bracket 31 can be attached to and detached from the substantially vertical member 11 </ b> V of the frame 11 by loosening the fixing screw 33. The substantially vertical member 11V may be provided with a protrusion 34 (FIG. 4) that contacts 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 dividing bracket 31 about the substantially vertical member 11V.
[0015]
The rope guide unit 50 has a rope guide hole 52 formed by left and right divided brackets 51 as in the pulley unit 30, and can be attached to and detached from the substantially vertical member 11V by loosening the fixing screw 53. . As in the case of the protrusion 34, the substantially vertical member 11V may be provided with a protrusion 54 (FIG. 4) that contacts the lower surface of the split bracket 51 to prevent the rope guide unit 50 from being lowered. The rope guide unit 50 can adjust the position of the rope guide hole 52 by rotating the split bracket 51 about the substantially vertical member 11V.
[0016]
The winding means 40 for winding the hoisting rope 21 that has come out of the rope guide hole 52 of the rope guide unit 50 can be either an electric winding means or a 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 operate | moves with a household commercial power source.
[0017]
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 13 </ b> S of the large wheel 13 has a winding wheel 41 divided into two parts that can be attached to and detached from the axle 13 </ b> S of the large wheel 13 of an existing wheelchair via a fixing bolt 42. In addition, it is fixed with a rotation stop with the axle 13S. A number of take-up pins 43 are fixed to the take-up wheel 41 so as to be positioned on a circumference around the axle 13S. The take-up pin 43 is fixed to the take-up wheel 41 by a fixing bolt 44 sandwiching the take-up wheel 41, and when the take-up pin 43 is screwed and fixed to the fixed bolt 44 as shown in FIG. A hole 43a for inserting a detent pin and a small diameter portion 43b are formed. On the other hand, a hook 24 that can be hooked on the small-diameter portion 43b is fixed to the distal end portion of the hoisting rope 21 of the standing assist sheet 20.
[0018]
The apparatus having the above configuration is used as follows. In a normal traveling state, a care recipient sits on the standing assistance seat 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 detached from the winding means 40. deep. The frame 11 is preferably provided with 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 traveling.
[0019]
When raising the care recipient on the wheelchair 10, the hook 24 of the hoisting rope 21 is hooked on the small diameter portion 43 b of any take-up pin 43 on the take-up wheel 41 of the take-up means 40. At this time, it is selected whether to raise the care recipient using the forward force applied to the wheelchair 10 or to use the backward force. When using the forward force, the solid line in FIG. 3 and FIG. 5 are used. The hoisting rope 21 is hooked on the take-up pin 43 from the front of the take-up wheel 41 (left-handed in the figure), and when using the retraction force, the hoisting rope 21 is attached to the take-up wheel 41 as shown by the chain line in FIG. Hook on the take-up pin 43 from the rear (right-hand winding in the figure).
[0020]
In the case of forward force utilization, when the caregiver advances the wheelchair 10 and rotates the large wheel 13, the winding wheel 41 that rotates together with the large wheel 13 winds the hoisting rope 21. Ascending, the waist of the care recipient who sits on the standing support sheet 20 rises. Therefore, when another caregiver holds the person requiring care, the care recipient can be brought into a standing state. Compared with the case where the caregiver supports and raises the total weight of the care recipient, the usefulness of the standing assist device is understood.
[0021]
In the case of using the retraction force, the same auxiliary force can be applied only by changing the winding direction of the hoisting rope 21 with respect to the winding wheel 41. The above explanation is a case where the care recipient is taken down from the wheelchair 10, but in the case of getting on, if the opposite operation is performed, the care recipient can be gradually seated on the wheelchair 10, Similarly, the burden on the caregiver can be reduced.
[0022]
7 and 8 show another embodiment of the winding means 40 used in the wheelchair (stand-up assisting device) of the present invention. A rotating wheel 45 that rotates integrally with the large wheel 13 is fixed to each of the axles 13 </ b> S of the left and right large wheels 13, and a winding wheel 46 is fitted to the fixed wheel 45 so as to be relatively rotatable. 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 required, but this divided structure is not limited.
[0023]
The rotating wheel 45 has a number of lock pin holes 45a formed at the same circumferential position, while the winding wheel 46 has a lock pin hole that can be engaged with any one of these lock pin holes 45a. 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 take-up wheel 46 rotate together, and when the lock pin 47 is removed, the rotating wheel 45 is rotated. The winding wheel 46 slides and does not rotate.
[0024]
A winding groove 46 b is formed on the circumferential surface of the winding wheel 46, and the leading end portion of the hoisting rope 21 is located in the winding groove 46 b and is latched by a pin 48. The hoisting rope 21 has a length so that the standing assisting seat 20 can be hung on the take-up wheel 46 (pin 48) with a little play in a state along the seat back 15 from the seat 14 of the wheelchair 10.
[0025]
Therefore, in this embodiment, the lock pin 47 is removed from the lock pin hole 45a of the rotating wheel 45 and the lock pin hole 46a of the winding wheel 46 in a normal running state. In this state, the winding wheel 46 can freely rotate relative to the rotating wheel 45, so that there is no hindrance to normal traveling.
[0026]
When the care recipient on the wheelchair 10 is raised, the lock pin 47 is fitted over the lock pin hole 45 a of the rotating wheel 45 and the lock pin hole 46 a of the winding wheel 46. Then, the rotating wheel 45 and the take-up wheel 46 cannot be rotated relative to each other, and both the wheels rotate together. Thus, in the same manner as in the previous embodiment, the caregiver advances or reverses the wheelchair 10 to rotate the large wheel 13. As a result, the winding wheel 46 that rotates together with the large wheel 13 winds the hoisting rope 21, and as a result, the standing assisting seat 20 rises and the waist of the care recipient sitting on the standing assisting seat 20 rises. Therefore, as in the previous embodiment, another caregiver can hold the care recipient and put the care recipient in a standing state. Also in this embodiment, the standing assistance force can be applied by either forward or backward movement of the wheelchair 10.
[0027]
Instead of moving the wheelchair 10 forward or backward, the rear part of the frame 11 can be jacked up, the large wheel 13 can be separated from the ground (floor surface), and the large wheel 13 can be manually rotated in this state. Can give action. The rope guide unit 50 may be omitted. Further, it is preferable that the standing assisting sheet 20 has a length that can be overlaid on the seatback 15 from the seat 14. However, if the standing assisting sheet 20 is at least stacked on the seat 14, the above-described standing assisting operation can be provided.
[0028]
As long as the standing assistance sheet | seat 20 is a sheet form and has the intensity | strength which supports a care recipient, it does not ask | require the aspect, such as a mesh body. Moreover, it is clear that the present invention does not ask the detail of the structure of the wheelchair 10, and it does not ask | require whether it is a foldable type. Furthermore, in the above embodiment, it is configured to be able to be constructed later on an existing wheelchair, but it is of course possible to equip the wheelchair as standard equipment. In this case, in this case, the pulley unit 30, the rope guide unit 50, the winding unit The means 40 can be fixedly provided with respect to the wheelchair 10.
[0029]
When the winding means 40 is electrically operated, it is not essential to provide the winding means 40 in association with the large wheel 13. For example, the electric winding unit connected to the hoisting rope 21 can be mounted on the wheelchair 10 regardless of the large wheel 13.
[0030]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the physical burden of the caregiver at the time of getting on and off a wheelchair in a wheelchair can be reduced.
[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. 1;
FIG. 3 is a perspective view showing an embodiment of a wheelchair having a standing assistance device according to the present invention.
FIG. 4 is an enlarged view around the pulley and the rope guide.
FIG. 5 is a side view showing an embodiment around the winding wheel.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a side view showing another embodiment of the winding device.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Wheelchair 11 Frame 11V Substantially 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 folding body)
31 Split bracket 32 Pulley 33 Fixing 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)

Standing assisting seat material placed on at least the seat of the wheelchair;
Fixing means for fixing the front of the standing assisting seat material to the wheelchair;
A pair of hoisting ropes coupled to both sides of the rear end of the standing auxiliary sheet material;
A pair of rope folds supported by the upper part of the wheelchair frame for folding the pair of hoisting ropes; and winding means for winding the hoisting ropes passed through the pair of rope folds;
A standing support device for a wheelchair characterized by comprising: In the standing assistance device according to claim 1, the winding means includes a pair of winding wheels fixed coaxially with the left and right large wheels of the wheelchair, and between these winding wheels and the tip of the hoisting rope, A device for assisting standing up of a wheelchair provided with a detaching means. In the stand-up assisting device according to claim 2, the detaching means is engaged with 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 is hooked on any of these winding pins. A wheelchair standing assistance device comprising a hook provided at the tip of a hoisting rope. 2. The standing assistance apparatus according to claim 1, wherein the winding means is an electric winding apparatus. 2. The stand-up assisting device according to claim 1, wherein the winding means includes a pair of rotating wheels fixed coaxially to the left and right large wheels of the wheelchair and rotating integrally with the large wheels, and fitted to the rotating wheels so as to be relatively rotatable. A wheelchair composed of a winding wheel that locks the end of the upper rope, and a locking means that locks the fixed wheel and the winding wheel so that they can rotate relative to each other or rotate together. Standing assist device. The stand-up assisting device according to any one of claims 1 to 5, wherein the rope fold is a pulley. A wheelchair having left and right frames, large wheels rotatably supported by the left and right frames, and a seat and a seat back positioned between the left and right frames;
Standing auxiliary seat material that is placed on at least the seat of this wheelchair and whose front end is fixed to the frame;
A pair of hoisting ropes coupled to both sides of the rear end of the standing auxiliary sheet material;
A pair of rope folds supported by the upper part of the wheelchair frame for folding the pair of hoisting ropes; and a winding means for winding the hoisting ropes passing through the pair of rope folds;
A wheelchair having a stand-up assisting device. The 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, and the detaching means is between the winding wheel and the tip of the hoisting rope. A wheelchair having a standing assistance device. 9. The wheelchair according to claim 8, wherein the 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 the winding means hooked on any of these winding pins. A wheelchair having a standing assistance device comprising a hook provided at the tip of a rope. 8. The wheelchair according to claim 7, wherein the winding means has a standing assist device that is an electric winding device. 8. The wheelchair according to claim 7, wherein the winding means includes a pair of rotating wheels fixed coaxially to the left and right large wheels of the wheelchair and rotating integrally with the large wheels, and the hoisting rope fitted to the rotating wheels so as to be relatively rotatable. A stand-up assisting device comprising: a winding wheel that locks the ends of the winding wheel; and a locking means that locks the fixed wheel and the winding wheel so that the relative rotation of the fixed wheel and the winding wheel is free or the two wheels rotate together. Have a wheelchair. The wheelchair according to any one of claims 7 to 11, wherein the rope folding body includes a standing assistance device including a pulley.

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