JP2569070Y2 - wheelchair - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair having a rising mechanism for assisting a person who has a lower limb to stand up.

[0002]

2. Description of the Related Art Conventionally, a general wheelchair has a function of mainly moving in a lateral direction while a user is sitting.

[0003]

[Problems to be Solved by the Invention] By the way, among the wheelchair users who can stand up on their own, the operation of getting up from a seated state is extremely difficult because of the power required, and it is troublesome. Was something.

[0004] The present invention has been developed in view of the above circumstances, and has as its object to provide a wheelchair that enables a person with lower limbs to stand up smoothly from a wheelchair.

[0005]

In order to achieve the above object, the present invention relates to a wheelchair equipped with a seat constituting a frame, a backrest, an elbow, a footrest, a footplate, a front wheel, a rear wheel, and the like. Pivotally attached to the front of the left and right leg frames to which the front and rear wheels are attached, and the seat is attached rotatably across the left and right leg frames,
A horizontal rail is straddled at a position lower than the seat in the rear part of the left and right leg frames, and a gas spring and a slide cylinder are straddled diagonally from the horizontal rail to an intermediate portion of the seat. A footrest is pivotally attached to the front part, and this footrest is pivotally attached to the left and right leg frames at the middle part, and it is rotatable around this pivot point, and furthermore, the tip of the footrest is The foot plate is attached, and the elbow rest is attached to the elbow rest supporting frame raised from the left and right leg frames at the front end thereof so as to be rotatable in the front-rear direction. Further, the backrest is fixed to the vertical portion of the L-shaped backrest support rod, and the lateral portion of the backrest support rod is positioned at the height of the seat between the left and right leg frames. Is obtained is characterized in that inserted slidably in the opened pipe in the longitudinal direction perpendicular to the middle portion of the straddled been rung in.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is an explanation based on the illustrated embodiment. Reference numeral 1 denotes a frame constituting the framework of the wheelchair of the present invention,
Denotes a seat seat, 3 denotes an elbow pad, 4 denotes a footrest, 5 denotes a foot plate on which a foot is placed, and 6 denotes a backrest (backrest).

The seat 2 is rotatably mounted between the left and right leg frames 7, 7 on which the front wheel 17 and the rear wheel 18 are mounted. That is, the seat 2 has moderate hardness and cushioning properties, and is pivotally attached to the front of the left and right leg frames 7, 7 at the front. On the other hand, this seat 2
At a lower position, a horizontal rail 8 is straddled between the rear portions of the left and right leg frames 7, 7, and a gas spring is obliquely provided between the center of the horizontal rail 8 and an intermediate portion which is located forward of the seat 2. 9 is attached. On the left and right sides of the gas spring 9, one slide cylinder 10 having a built-in compression spring is mounted between the seat 2 and the bar 8. When the user lifts his hips to stand up, the seat 2 is pushed up by the urging of the slide cylinder 10 and the operation of the gas spring 9 as shown in FIG. It is formed to stand up.

A short connecting rod 11 is rotatably pivotally mounted on the front left and right sides of the seat 2 and a long footrest 4 is disposed diagonally forward at the lower end of the connecting rod 11 so as to be rotatable. A foot plate 5 is attached to a lower end of the footrest 4 and is rotatably pivotally attached to each of the left and right leg frames 7, 7 at an intermediate portion of the footrest 4. The foot plate 5 is away from the ground when the user is sitting on the seat 2, and the connecting rod 11 is interlocked with the rising of the seat 2 when the user stands up, as shown in FIG. As a result, the footrest 4 is formed so as to rotate downwardly and land on the intermediate pivot 4a as a fulcrum.

The elbow pad 3 is formed in a rod shape. The elbow pads 3 are respectively formed on the upper front ends of the inverted concave elbow pad support frames 12, 12 raised on the upper parts of the left and right leg frames 7, 7. 3 has a front end rotatably mounted in the front-rear direction. And when the user is sitting on the seat 2,
The elbow pad 3 is placed on the upper part of the elbow pad support frame 12, and when the user stands up, the elbow pad 3 is pushed up when the user stands up. As shown in FIG. Rotate forward, left and right elbow support frame 1
It is formed so as to protrude forward from the tip of 2, 12.
As shown in FIG. 6, the elbow pad 3 may be formed so as to slide on the upper surface of the elbow pad support frame 12.

The backrest 6 is an L-shaped backrest support rod 15.
And has a required size and is formed to be movable back and forth. That is, as shown in FIG. 7, a horizontal bar 13 is provided between the left and right leg frames 7 at the height position of the seat 2, and a pipe 14 extends in a direction perpendicular to the horizontal bar 13. The lateral portion of the back support rod 15 is slidably inserted in the pipe 14 in the front-rear direction. Then, the backrest support rod 15 is adjusted to a position where it is easy to sit, and is fixed by tightening a fixing screw 16.

In use, when the user tries to stand up, first, the elbow pad 3 is pushed up and protruded forward,
Then, when the user lifts his / her hip, the seat 2 automatically rises gradually by the urging of the slide cylinder 10 and the operation of the gas spring 9, and the foot plate 5 lands.
With the feet placed on the foot plate 5, the seat 2 can push up the buttocks of the user and stand up smoothly. In addition, when sitting again, if the user performs a sitting operation, the buttocks press the seat sheet 2 and the seat sheet 2 automatically returns to the initial position. In order to improve the sitting comfort, the fixing screw 1
6, the back support rod 15 is moved in the front-rear direction, and the fixing screw 16 is tightened and fixed at a required position.

[0012]

[Effect of the Invention] As described above, in the present invention, the gas spring and the slide cylinder are attached, and the seat seat pushes up the buttocks by the urging, so that the user can stand up automatically without any operation just by slightly lifting the waist. You can sit down automatically just by sitting down. The gas spring and the slide cylinder are robust and durable, and can easily adjust the bias, so that they can be used comfortably for people of various weights.

In addition, since the user can stand up with the feet placed on the landing tread, the user can stand up in a stable state without the need to push up the treads.
Furthermore, the initial operation can be performed by grasping the elbow pad with the elbow pad protruding forward, and the initial operation can be performed, so that the user can stand up in a more stable state.

Further, the backrest can be adjusted in the front-rear direction to improve the sitting comfort.

[Brief description of the drawings]

FIG. 1 is a perspective view.

FIG. 2 is a rear view.

FIG. 3 is a partial side view showing movement of a seat.

FIG. 4 is a partial side view showing the movement of the footrest.

FIG. 5 is a partial side view showing the movement of the armrest.

FIG. 6 is a side view showing the movement of another embodiment of the armrest.

FIG. 7 is a side view showing the movement of the backrest portion.

FIG. 8 is a schematic side view showing a rising operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Seat seat 3 Elbow support 4 Footrest 5 Foot plate 6 Backrest 9 Gas spring 10 Slide cylinder 16 Fixing screw 17 Front wheel 18 Rear wheel

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ikuko Goto 4-1-3 Ikebukuro, Toshima-ku, Tokyo Inside Tahira Stock Company (72) Inventor Toshiya Matsumura 43, Shinkicho, Nishi-ku, Nagoya-shi, Aichi 56) References Japanese Utility Model 60-71220 (JP, U) Japanese Utility Model 51-113963 (JP, U) Japanese Utility Model 57-97525 (JP, U) Japanese Utility Model Utility Model 4-114321 (JP, U) Showa 47-30934 (JP, B1)

Claims (3)

(57) [Scope of request for utility model registration] 1. A seat constituting a skeleton, a seat and a backrest, an elbow pad, a footrest, a foot plate,
In a wheelchair equipped with front wheels and rear wheels, etc., a seat is pivotally attached to the front of the left and right leg frames to which the front and rear wheels are attached, and a seat is rotatably mounted across the left and right leg frames. A horizontal rail is laid at a position lower than the seat at the rear of the left and right leg frames, and a gas spring and a slide cylinder are laid diagonally from the horizontal rail to an intermediate portion of the seat. The footrest is attached to the front part of the footrest by pivoting, and this footrest is pivotally attached to the left and right leg frames at the middle part, and it is rotatable around this pivoting part. A wheelchair, characterized in that a foot plate is attached to the wheelchair. 2. The elbow rest is attached at its front end to an elbow rest support frame raised from the left and right leg frames so as to be freely rotatable in the front-rear direction.
Wheelchair as described. 3. The backrest is fixed to a vertical portion of an L-shaped backrest support rod, and the lateral portion of the backrest support rod is positioned at a height of a seat between the left and right leg frames. The wheelchair according to claim 1 or 2, characterized in that the wheelchair is slidably inserted into a pipe opened in the front-rear direction orthogonal to the middle part of the straddled horizontal rail.