JP2002065749A - Wheelchair with assisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair with a stable rising support device which prevents the body of a user on the wheelchair from sinking. SOLUTION: In the wheelchair with the rising support device for helping the user get up by expanding or contracting an air bag 33 arranged at a seat part 22 by feeding or exhausting air, a rising plate 30 is provided on the air bag 33 and the air bag is expanded or contracted to tilt the plate 30 forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standing assist device for inflating and deflating an airbag by, for example, supplying and discharging compressed air, and using the airbag to assist a user sitting in a wheelchair to stand up and change his / her position. With wheelchair.

[0002]

2. Description of the Related Art Conventionally, for example, in a nursing care unit described in Japanese Patent Application Laid-Open No. 8-66435, an airbag having a substantially triangular cross section is arranged in a seat portion of a wheelchair, and an air pump is connected to the airbag by an air pipe. It is connected. Also,
There is a control means for adjusting supply and exhaust such as a drive on / off switching valve, and the control means controls the supply and exhaust to inflate and contract the airbag, and expand and contract the seat part up and down. This assists the rising and sitting motion.

[0003]

However, when the airbag made of a soft material is simply placed on the seat of the wheelchair, the body of the user sinks when assisting the user to stand up. For this reason, the function becomes unstable, and a function of assisting a sufficient start cannot be obtained. In addition, if a person is in a wheelchair for a long time, a specific part of the body may be compressed and blood circulation may be impaired.

Accordingly, an object of the present invention is to provide a wheelchair with a stable standing assist device that does not sink the body of a user.

Further, in the invention according to claim 5, even if the user rides in the wheelchair for a long time, the pressure applied to the body changes, and the specific part of the body does not continue to be pressed. The purpose is to provide.

[0006]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, an airbag disposed in a seat is used by inflating or deflating by an air supply and exhaust. In a wheelchair with an assisting device for assisting a person to stand up, an upright plate is provided on the airbag, and the airbag is inflated or contracted to tilt the upright plate forward.

According to the second aspect of the invention, in the wheelchair with the upright assisting device according to the first aspect, a plurality of airbags for tilting the upright plate are provided, and these airbags are partially overlapped with each other.

According to a third aspect of the present invention, in the wheelchair with the upright assisting device according to the first or second aspect, the airbag is fixed to one end of the upright plate.

According to a fourth aspect of the present invention, in the wheelchair with the upright assisting device according to any one of the first to third aspects, an upright assisting device having an airbag and an upright plate is detachably provided on a seat portion.

According to a fifth aspect of the present invention, in the wheelchair with the assisting device according to any one of the first to fourth aspects, airbags for changing the body position are provided on the left and right sides of the center on the upright plate, and the air supply and exhaust are alternately performed. Expansion and contraction.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First, a wheelchair with a standing assistance device of the present invention will be described.

(First Embodiment) As shown in FIG.
The wheelchair 1 with a standing assist device of the present invention includes a wheelchair 2 and a standing assist device 3.

The wheelchair 2 is a general one manufactured according to JIS standards. The wheelchair 2 is assembled on the basis of a frame 4 made of a pipe-like member. The frame 4 is composed of side frames 5 connected to each other by X-shaped connecting metal fittings (not shown) so as to be located on both sides so as to be able to widen or reduce the distance between each other. These side frames 5
A vertical front frame 6 positioned in front and a vertical rear frame 7 positioned in the rear, and a horizontal lower frame 8 and an upper frame 9 positioned vertically and connecting the front frame 6 and the rear frame 7 are provided. ing.

A front wheel 10 having a small diameter is attached to a lower end of the front frame 6, and a wheel 11 having a large diameter is rotatably mounted behind the side frame 5.
A wheel-shaped hand rim 12 having an outer diameter slightly smaller than the outer diameter of the wheel 11 is fixed to the outside of the wheel 11.

An operating lever 13 protruding upward is provided on the left and right sides of the frame 4, and a brake 14 for braking the wheels 11 is mounted.

At the upper end of the rear frame 7, a handle portion 15 extending upward and projecting rearward is provided.
Is provided with an armrest 16. A middle frame 19 having a horizontal portion 17 and an inclined portion 18 positioned forward and inclined is fixed to an intermediate portion of the side frame 5. At the lower end of the inclined portion 18 of the middle frame 19, there is formed a footrest portion 20 projecting forward from the inclined portion 18 and rotating between a horizontal state and a vertical state with a longitudinal axis.

A leg belt 21 is stretched between the left and right inclined portions 18 located above the footrest portion 20. Further, a seat 22 formed of cloth or the like is stretched over the horizontal portion 17 of the middle frame 19. A magic tape (registered trademark) 23 for attaching the standing assist device 3 is provided on the seat portion 22.

A backrest 24 made of cloth or the like is also stretched over the rear frame 5. On the back side of the backrest 24, there is provided a storage portion 27 in which a power supply battery 25 and an air supply / exhaust portion 26 as driving means for driving the standing assist device 3 are detachably stored.

Next, the upright assisting device 3 attached to the seat 22 of the wheelchair 2 will be described. As shown in FIGS. 2 to 4, the upright plate 30 is formed of an upper plate 31 and a lower plate 32 having a self-hinge made of a polypropylene resin. Between the upper plate 31 and the lower plate 32, an edge 34 provided on the peripheral edge of the airbag 33 is provided at the end opposite to the hinge portion and at the outer portion of the lower plate 32 by two. The stitch 35 is fixed at the place and attached. The airbag is formed of a flat bag having airtightness and using a soft material, and is inflated with supply and exhaust of compressed air.
Shrink.

Actually, the airbags 33 attached to the upright plate 30 consist of two pieces, and are partially overlapped at the center. Preferably, 1/3 is superposed at the center. That is, when the weight of the user is added to the upright plate 30, the height of the lift from one airbag becomes higher.

When the flat airbag is inflated,
The height of the central portion is high, and the height decreases toward the end. However, the overall height can be made uniform by overlapping the low portions, so that the entire upright plate 30 can be stably lifted. Further, since the upright plate 30 is supported at two points on the left and right, a more stable upright can be obtained. The number is not limited to two, but may be three or more.

A flexible air hose 36, such as a soft vinyl resin tube, is provided above the air bag 33.

A cushion material 37 made of foamable urethane resin is adhered to the upper plate 31 of the upright plate 30. A cover 38 made of cloth and having elasticity or having a bellows part is provided so as to surround the cushion material 37 and the upright plate 30. A magic tape 39 is attached to the bottom of the cover 38.

By attaching the magic tape 39 to the magic tape 23 provided on the seat 22, the upright assisting device 3 having the upright plate 30 and the airbag 33 can be detachably attached to the seat 22 of the wheelchair 2. It can be attached. In this manner, the stand-up assisting device 3 can be removed, so that it is easy to carry the wheelchair 2 alone, and the present invention can also be applied to a folding and pulling wheelchair. .

The air supply / exhaust portion 26 housed in the housing portion 27 includes an air pump (not shown), a solenoid valve (not shown) connected to the air pump via an air hose 28, and control means for controlling the air pump and the solenoid valve. It is composed of The airbag 33 is an air hose 3
6. Connected to an air pump via an electromagnetic valve and an air hose 28. The electromagnetic valve is a three-way valve, and can be selected from a state in which the airbag 33 communicates with the airbag 33, a state in which the airbag 33 communicates with the outside air, and a state in which the amount of air in the airbag 33 is maintained. I have.

A switch (not shown) is provided at one of the armrests 16 as input means. In the switch function, the switch 1 is a switch for starting and stopping air supply to the airbag 33, and the switch 2 is a switch for exhausting the airbag 33.

The upright assisting device 3 is mounted on the seat 22 of the wheelchair 2.
And the power supply battery 25 is connected to the air supply / exhaust unit 26 with the air hose 36 of the airbag 33 and the power supply battery 25 is connected to the storage unit 27 to constitute the wheelchair 1 with the assisting device.

Although the system in which the upright assisting device is detachable from the seat has been described, the present invention is not limited to this. In the direct mounting system, the lower plate of the upright plate can also serve as the seat. The configuration is simplified. The wheelchair system can be applied to a folding system or a fixed system.

Next, the operation of the wheelchair with the assisting device for standing up will be described with reference to FIGS. For example, when a user in a wheelchair gets out of the wheelchair from a state of sitting on the seat, first, the operation lever 13 is operated to brake the wheels 11 and stop the wheelchair.

Next, the left and right footrests 20 are rotated to make a landing portion on which the foot can be landed. Switch 1 when ready
Is turned on, the air supply / exhaust portion 26 supplies air, the air bag 33 expands, the rear of the upper plate 31 of the upright plate 30 is lifted, the front is lowered, and the occupant's body gradually moves forward. You can get up easily. When a timer (not shown) operates on the inflated airbag 33, the air supply / exhaust unit 26 stops after a certain period of time.

Next, when the occupant lands and turns on the switch 2, the air supply / exhaust section 26 is exhausted and the air bag 3
The upper plate 31 is lowered and returned to the initial state with the self-hinge portion of the upright plate 30 as a fulcrum while the 3 is contracted.

It should be noted that the present invention is not limited to the upright plate.
For example, the self-hinge portion of the upright plate 30 is provided behind the seat portion 22, the airbag 33 is inflated so that the upper portion of the upright plate 30 is always horizontal, and the airbag 33 is contracted when it is raised. Thus, the standing plate 30 is inclined forward of the seat portion 22 so that the occupant can easily land. The operation may be performed by a caregiver.

(Second Embodiment) An airbag for changing body position is provided on an upright plate 30 of an upright assisting device 3 according to a first embodiment. The same parts as those in the first embodiment described above are denoted by the same reference numerals, and different parts will be described. As shown in FIGS. 5 and 6, an airbag 33 sandwiched between an upper plate 31 and a lower plate 32 of an upright plate 30 is provided. The body position changing airbag 40 is symmetrically arranged at the center of the upper plate 31.

The airbag 40 has two edges 41 at the center of the upper plate 31 and stitches 42 at two places. Further, the body position changing airbag 40 is provided with an air hose 43 connected to a solenoid valve (not shown) of the air supply / exhaust section 26 for supplying / exhausting air.

A cushion 44 made of a foamable urethane resin is provided on the upper surface of the body position changing airbag 40. A cover 4 made of cloth or the like surrounds the upright plate 30, the posture changing airbag 40, the cushion 44 and the like.
Covered with 5. Note that the cover is not limited to cloth as long as it is an elastic member. A magic tape 46 is attached to the bottom of the cover 45, and the magic tape 46 and the magic tape 2 provided on the seat 22 are provided.
3, the upright assisting device 49 is detachably attached.

A switch, not shown, is provided on one of the armrests 16. In the switch function, the switch 1 is a switch for starting and stopping air supply to the airbag 33, and the switch 2 is a switch for exhausting the airbag 33. The switch 3 is a switch for alternately inflating and contracting the left and right sides of the postural change airbag 40, and the switch 4 is a switch for simultaneously starting and stopping air supply to the left and right sides of the postural change airbag 40. Reference numeral 5 denotes a switch for exhausting the body position changing airbag 40.

The operation with the posture changing function will be described with reference to FIGS. 1, 5 and 6. First, switch 3
Is turned on, the air supply / exhaust unit 26 is driven to supply air, and one of the body position changing airbags 40 expands. After a certain period of time, the air supply is stopped and exhausted. The air is supplied to the other airbag 40 for body position displacement and inflated. After a certain time, the air supply is stopped and exhausted.

As described above, the configuration in which the airbags 40 for body position displacement are alternately changed enables the use of the function of the body position change even when the user is in a wheelchair for a long time so that the specific part is not pressed. Therefore, the wheelchair can be used easily for a long time without causing blood circulation disorders.

In addition, since both of the function of assisting standing and the function of changing body position can be obtained by using an airbag, the drive source can be shared by the air pump, and the configuration can be simplified.

The airbag 40 for body position displacement
Is usually performed while both the airbags 40 for body position displacement are contracted, but in order to more effectively perform the raising assist, both the airbags, that is, the airbag 33 are used. When the airbag 40 for body position displacement is inflated, the standing support may be performed. Furthermore, when the occupant's posture is tilted forward while the airbag 33 for assisting standing up is inflated first, and the airbag 40 for displacing both left and right postures is inflated, assisting standing is performed. The effect of the operation is obtained.

Furthermore, although the present invention has been described with respect to a wheelchair with a standing assistance device, the same effect can be obtained with another nursing care device with a standing assistance device.

It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified at the stage of implementation without departing from the scope of the invention. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent features. For example, even if some components are deleted from all the components shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the problem described in the column of the effect of the invention can be solved. In the case where the effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

[0043]

As described above, according to the inventions described in the claims, a wheelchair with a standing assist device that is stable without the body of the occupant riding down can be provided.

Furthermore, in the invention according to the fifth aspect, even if the user rides in the wheelchair for a long time, the pressure applied to the body changes and the wheelchair with the assisting device for standing up in which the specific part of the body is not pressed. Can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a wheelchair with a standing assistance device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the standing assist device according to the embodiment.

FIG. 3 is a cross-sectional view showing a standing assistance state of the standing assistance device of FIG. 2;

FIG. 4 is a plan view showing an attachment relationship between the upright plate and the airbag of the upright assisting device according to the embodiment.

FIG. 5 is a cross-sectional view illustrating a standing assist device and a postural change airbag according to a second embodiment of the present invention.

FIG. 6 is a plan view showing the mounting relationship between the upright plate and the body position changing airbag of the upright assisting device according to the embodiment.

[Explanation of symbols]

 22 Seat 30 Standing plate 33 Airbag 40 Posture changing airbag

Claims (5)

[Claims] 1. A wheelchair with an upright assisting device for assisting a user to stand up by inflating or deflating an airbag disposed in a seat by air supply and exhaust, wherein an upright plate is provided on the airbag. A wheelchair with a stand-up assist device, wherein the stand-up plate is inclined forward by inflating or deflating the airbag. 2. The wheelchair with the assisting device according to claim 1, wherein a plurality of airbags are provided for inclining the erecting plate, and the airbags are partially overlapped with each other. 3. The wheelchair with a standing assist device according to claim 1, wherein the airbag is fixed to one end of the standing plate. 4. The wheelchair according to claim 1, further comprising: an upright assisting device having an airbag and an upright plate provided in a seat portion in a detachable manner. Wheelchair with assistive device. 5. The wheelchair with the assisting device according to claim 1, wherein airbags for changing the position are provided on the left and right sides of the center of the upright plate, respectively, to alternately inflate and contract by air supply and exhaust. A wheelchair with an assisting device for standing up.