JPH05220196A - Wheelchair - Google Patents

Abstract

PURPOSE:To get on and off sideways by providing running wheels to the rear of the lower part of a seat, and providing driving wheels so as to be freely movable vertically on the outside of a screen provided so as to be overturnable on the side part of the seat, in the wheelchair provided with the running wheels on both the left and the right sides of the seat. CONSTITUTION:The wheelchair 1 has a frame 2 provided with a seat space 3 in the center part, and running wheels 4 are supported axially in positions to the rear of the lower part of both the left and the right sides. Also, in positions of the upper side in front of the running wheels 4, driving wheels 5 rotated by man-power are provided, and by a rotation of these driving wheels 5, the running wheels 4 are rotated through a power transmission belt 7. Between a bracket fixed to a handle frame 13, and a bracket 32 fixed to a pipe 30 to which a caster front wheel 29 is attached, a screen frame 33 is provided so as to be freely turnable to the outside, and in the case of laying down the screen frame 33 to the outside at the time of getting on and off sideways, the driving wheels 5 can be moved downward along a guide shaft in the diameter direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair used by persons with physical disabilities.

[0002]

2. Description of the Related Art Wheelchairs used by persons with disabilities and the elderly are
Traveling wheels are provided on both left and right sides of the seat, and the wheels are generally rotated by a human hand or the like to move. Wheelchair seats are generally fixed forward.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The width of the vehicle is not so wide, and since it is designed to get in and out from the front side of the vehicle, it was necessary to inevitably move backward when getting in and out. Therefore, for example, it is extremely difficult and dangerous for a physically handicapped person to sleep in a bed to get on and off a wheelchair, and there is a problem that assistance from another person is necessary. The need for assistance from others in this way increases the mental burden on the person himself, and may also discourage the physically handicapped person from recovering. Therefore, an object of the present invention is to allow a physically handicapped person to get on and off a wheelchair as much as possible by himself.

[0004]

In order to solve the above problems, the present invention adopts the following constitution. That is, the wheelchair according to the present invention is a wheelchair in which traveling wheels are provided on both left and right sides of a vehicle body that supports a seat, the traveling wheels are provided near a lower rear portion of the seat, and a partition capable of tipping outward on a side portion of the seat. And a drive wheel that is manually rotated is provided outside the partition so as to be movable up and down, and the drive wheel and the traveling wheel are connected by a transmission belt.

[0005]

When the vehicle is running, the driving wheels provided on the outside of the seat are manually rotated by a passenger sitting on the seat. This rotational force is transmitted to the traveling wheels by the belt, and the wheels are rotated, so that the vehicle can travel freely. Also, when the drive wheels are lowered and the screen is tumbled outward, the side surface of the seat is released, so that it is possible to easily get on and off while laterally moving the body from the side portion of the vehicle body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below. 1 and the following figures show an embodiment of the present invention. In this wheelchair 1, a seat space 3 is provided at the center of a frame 2 which constitutes a vehicle body, and a lower rear portion on both left and right sides thereof is provided. Traveling wheels 4 and 4 are provided at positions closer to each other. Drive wheels 5 for manually rotating the wheels are attached to the front upper side of the traveling wheels 4, and the driving wheels 5 and the traveling wheels 4 are connected by a transmission belt 7.

The frame 2 is symmetrically divided into left and right pairs. At the lower part of the frame 2, there is provided a rear pipe 12 extending forward and backward, and a base portion of a handle frame 13 extending upward rearward is fixed to the rear pipe 12. A base portion of a horizontal portion 14a of the chair frame 14 is fixed to an intermediate portion of the handle frame 13 in the vertical direction, and an inclined portion 14b is provided at the front end of the horizontal portion 14a so as to extend downward. There is. A front pipe 15 is projectingly provided on the rear side of the inclined portion 14b, and a rear end portion of the front pipe and a front end portion of the rear pipe 12 are rotated by pins inserted into both pipes. It is connected by a frame 16. A handle 1 is attached to the upper end of the handle frame 13.
7 is provided.

The left and right frames 2 and 2 are connected to each other by an X-shaped link frame 18. The link frame 18 is composed of a pair of links 19 and 20 which are pivotally supported by pins at the midpoints which are overlapped in the front and rear, and the lower ends of these links are fixed to the rotary frame 16 and the upper ends thereof. The portion is connected to a pipe 21 rotatably attached by a pin fixed to the horizontal portion 14a of the chair frame 14.
A set link 22 is provided on the rear side of the link frame 18.
Is provided. The set link 22 is provided with plate-like links 23 and 24 overlapping in the front-rear direction in an X shape in the same manner as the configuration of the link frame 18, and the set holes 2 are provided in the respective links 23 and 24.
3a and 24a are provided, and set holes 25a and 26a are provided in the arms 25 and 26 which are pivotally connected to the handle frames 13 and 13 so that the left and right frames 2 and 2 are provided on the left and right chairs. In the state that it is expanded to the interval corresponding to the hanging width,
The holes 23a, 25a and 24a, 26a with pin 2
By connecting 7 and 28, the left and right frames 2 and 2 can be set in a stable state without expansion and contraction.

A vertical pipe 30 is fixedly attached to a bracket 32 provided on the outer side of the chair frame 14 and an outer side of the front pipe 15, and a pair of left and right casters capable of being deflected are provided at the lower end of the pipe. A support shaft 31 of a front wheel 29 of a type is attached so as to be vertically adjustable. Also, the inclined portion 1
A pair of left and right footrests 39, 39 are provided at the lower end of 4b. Furthermore, a partition frame 33 is provided rotatably outward by a pin 35 provided between a bracket 34 fixed to the handle frame 13 and a bracket 32 to which the pipe 30 is attached.

A seat 40 provided in the seat space
Is composed of a seat receiver 41 and a chair body 42. The seat receiver 41 is made of cloth or a large number of ropes,
Horizontal portions 14a, 1 of the left and right chair frames 14, 14
Both left and right ends are attached to the rods 43, 43 attached to 4a and directed in the front-rear direction. The chair body 42 is formed of a flexible sheet, and comprises a seat portion 42a received by the seat receiver 41 and side portions 42b, 42b covering the partition frame 33. The side portion 42b The outer surface of the partition is formed into a bag shape, and the partition frames 33 and 33 are attached so as to be wrapped. Therefore, this side portion 42b can be tilted outward together with the outward rotation of the partition frame 33. A pair of left and right armrest frames 45, which overlap the partition frame 33, are vertically rotatably mounted by pins 46 at the upper and lower intermediate portions of the handle frame 13. An elbow pad 47 is attached to the upper surface of the armrest frame 45, and a pair of curved fixing members 48, 48 for sandwiching and fixing the partition frame 33 is provided on the lower surface side of the tip portion.

A downward bracket 50 is fixed to the horizontal portion 14a of the chair frame 14, and a pulley 51 is attached thereto.
Are rotatably supported by a shaft 52. Pully 5
1 has a hollow boss 55 integrally formed with stepped recesses 53 and 54 and covered with a lid 58, and two shafts 57 parallel to the through holes 56 provided in the boss 55. ,
57 is slidably inserted. Both ends of the shafts 57, 57 are fixed to the drive wheel 5. For this reason,
The rotation of the drive wheels 5 is transmitted to the traveling wheels 4 via the belt 7. Further, the hook 6 is provided in the large-diameter hollow portion 54 of the boss 55.
0 is rotatably provided by a pin 61, and a knob 62 is attached to the outer end of the pin 61. The one shaft 57 has a hole 66 into which the hook is fitted.
Is provided, and the knob 6 is operated to operate the hook 6
The tip of 0 can be fitted in or removed from the hole 66. When the hook 60 is fitted into the hole 66 of the shaft 57, the shaft 57 and the pulley 51 are fixed, and the drive wheel 5 is fixed and held at that position. By removing the hook 60, the drive wheels 5 can be moved up and down by sliding the shafts 57, 57.

In this wheelchair 1, as shown in FIG. 1, a partition frame 33 is set up and an armrest member 45 is mounted on the partition frame 33.
The partition frame 33 is fixed by the curved fixing members 48 and 48, and the drive wheel 5 is fixed to the pulley 51 by the hook 60 at its raised position for normal riding. When the passenger sitting in the seat rotates the left and right drive wheels 5, 5 with both hands, this rotation is transmitted to the traveling wheels 4, 4 via the belt 7, and the traveling wheels roll on the floor surface. Therefore, the passenger can move to a desired place.

Next, when the person M on the bed B transfers to the wheelchair 1, as shown in FIGS. 5 and 6, the hook 60 of the wheelchair approached along the bed is removed from the hole 66. The drive wheel 5 is slid downward, the armrest member 45 is flipped upward, and the partition frame 33 is turned over to the outer side, and is superposed on the bed as shown in FIG. At this time, the drive wheel 5 can be moved sufficiently downward so that the partition frame 33 can be made substantially horizontal. In this state, the person on the bed laterally moves on the side portion 42b of the seat that covers the screen frame 33 and sits down on the seating portion 42a of the seat 40, and then the screen frame 33 is raised. It may be fixed by the curved fixing member of the armrest member, and the drive wheel 5 may be pulled up and fixed to the pulley by the hook 60. Even when the person in the wheelchair moves to the bed, the side portion of the seat can be opened by the same operation to easily perform the transfer operation. In addition, since the wheelchair of the embodiment is bilaterally symmetrical, it is convenient because you can get on and off as you like from the right side or the left side,
Depending on the case, only one of the left and right sides may be opened and closed.

[0014]

EFFECTS OF THE INVENTION As is clear from the above description, this wheelchair can open and close sideways of the seat and perform a sideways loading / unloading operation, which makes the operation much easier than the conventional one, and It has become possible for people with disabilities to get on and off without the help of others as much as possible.

[Brief description of drawings]

FIG. 1 is a right side view showing an embodiment of the present invention.

FIG. 2 is a side view of the main part.

FIG. 3 is a rear view of the main part thereof.

FIG. 4 is a rear view with a part omitted.

FIG. 5 is a side view showing a state during lifting and lowering.

FIG. 6 is an explanatory diagram of usage.

[Explanation of symbols]

 1 Wheelchair 2 Frame 3 Seat 4 Traveling Wheel 10 Support Frame 20 Seat Fixing Device 30 Rail

Claims (1)

[Claims] 1. A wheelchair in which traveling wheels are provided on both left and right sides of a vehicle body supporting a seat, the traveling wheels are provided near a lower rear portion of the seat, and a laterally fallable partition is provided on a side portion of the seat. A wheelchair characterized in that a driving wheel that is manually rotated is provided on the outside of the partition so as to be vertically movable, and the driving wheel and the traveling wheel are connected by a transmission belt.