JP6159308B2 - Wheelchair seat - Google Patents

Description

  The present invention relates to a wheelchair seat plate that can be detachably attached to a wheelchair seat surface.

  Conventionally, wheelchairs used by elderly people and persons with physical disabilities have a structure that can be folded for easy storage and carrying. Therefore, the seat and back are generally upholstered. is there.

  However, because the seating surface is upholstered, the weight of the seated person causes deflection in the upholstery, and the seating comfort is poor, and it is difficult for the seated person to maintain an appropriate posture for a long time. was there. In addition, the seated person's buttocks are displaced to the front of the seat surface, so that the seat is in a so-called slippery posture and there is a risk of dropping.

  Therefore, recently, custom-made seats have been proposed using materials such as sponge, plywood, plastic, etc. according to the body shape of the seated person, but this method adopts the shape in the optimal posture. It is difficult to mold and it takes a long time and a lot of money to make.

  In addition, a wheelchair cushion that has been used in the past has been sold with an additional function to improve posture, but it is also necessary to adapt to wheelchairs with different seat widths. Few products incorporate a solid base from the beginning that completely eliminates the effects. Therefore, it is necessary to use a hard plywood, a steel frame, a plastic plate, or the like underneath, and there is a problem that the seating position becomes high due to an increase in thickness.

  Furthermore, there are also proposals that hold the seated person's posture with an electric type using air, etc., or hold the seated person's posture by fixing the upper body of the seated person with a cover or belt, However, there are problems such as high cost, difficulty in construction and inability to use, and restraining freedom of the body.

JP 2010-142365 A JP 2008-23061 A

  The problem to be solved is that, in a wheelchair, a seated person can maintain an appropriate posture while maintaining a low sitting position, and there is no pain even in a sitting position for a long time, and a comfortable sitting surface is constituted. Therefore, it is to provide an inexpensive wheelchair seat plate that is compatible with off-the-shelf wheelchairs by providing a detachable seat plate on the wheelchair seat surface.

The present invention is a seat plate that can be detachably mounted on a seat of a commercially available wheelchair, the seat plate having a laterally movable adjustment member on the lower surface, and an end of the adjustment member. Is attached to the wheelchair by engaging the locking claw portion with the locking portion provided on the side frame of the wheelchair seat surface, and the seat plate is mounted on the wheelchair. When attached to the seat, a certain inclination is formed from the rear portion of the seat surface toward the front portion of the seat surface .

  According to the seat plate for a wheelchair of the present invention, since the seat surface is stabilized by eliminating the deflection of the conventional seat surface, the seated person can maintain a good posture, and there is no pain even when sitting for a long time. It is possible to take a well-balanced sitting position.

  In addition, the wheelchair seat plate of the present invention can minimize the rise of the seating position, so it can be attached to an inexpensive off-the-shelf vehicle or a wheelchair currently used by the person himself. There is no need to purchase expensive wheelchairs.

  Further, the wheelchair seat plate of the present invention can be mounted only by providing a locking portion on the side frame, and the cushion laid on the side frame may not be particularly functional and may be inexpensive. It can be provided to wheelchair users at low cost.

  In addition, since the wheelchair seat plate of the present invention is detachable from the wheelchair, the wheelchair can be folded as it is, and the function that the existing off-the-shelf products can be easily carried and stored is not impaired. .

  Furthermore, when the wheelchair seat plate of the present invention is mounted on a wheelchair, it has a certain inclination from the rear of the seat surface toward the front of the seat surface, so that the seated person can hold a sitting position with a stable balance. The risk of the person's buttocks slipping forward and falling can also be eliminated.

It is a figure which shows the upper surface of the seat surface board for wheelchairs which concerns on this invention. It is a figure which shows the lower surface of the seat surface board for wheelchairs which concerns on this invention. It is explanatory drawing which shows the state in the middle of mounting | wearing the wheelchair with the wheelchair seat plate which concerns on this invention. It is a figure which shows the state with which the seat surface board for wheelchairs concerning this invention was mounted | worn with the wheelchair.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are views showing a wheelchair seat plate 3 according to the present invention. The wheelchair seat plate 3 of the present invention is a substantially plate-like body, and is provided with locking claws 10a and 10b at predetermined positions on the lower surface. The locking claws 10a and 10b are fixed to the ends of the adjusting members 11 and 14, respectively. The adjusting members 11 and 14 are movably attached to the lower surface of the wheelchair seat plate 3. The adjusting members 11 and 14 have through holes in the center, and are connected by screws 15 and 16 so that these through holes are engaged. Thereby, the adjustment members 11 and 14 can move in the lateral direction, and the positions of the locking claws 10a and 10b can be adjusted according to the seating surface width of the ready-made wheelchair.

  In addition, although the shape of the wheelchair seat board 3 of this embodiment is a substantially plate-shaped body, it can also be made into various shapes according to a seated person's body shape, a failure degree, etc. For example, it is also possible to form a dent in the position of the seated person's buttocks or thighs.

  FIG. 3 is an explanatory diagram showing a state in the middle of mounting the wheelchair seat surface plate 3 according to the present invention on the wheelchair 1. At predetermined positions on the seat side frames 4a and 4b of the wheelchair 1, locking portions 13a and 13b having U-shaped metal fittings are attached in advance. Then, the locking claw portions 10 a and 10 b are engaged with the U-shaped metal fittings of the locking portions 13 a and 13 b, so that the wheelchair seat surface plate 3 of the present invention is mounted on the wheelchair 1.

  The U-shaped brackets of the locking portions 13a and 13b have an opening in the direction of the back surface 2 of the wheelchair 1, whereby the seated person is displaced in the front direction of the wheelchair and the load is applied in the front direction. Thus, the load can be received at the locking portions 13a and 13b. The locking portions 13a and 13b are provided on the seat side frames 4a and 4b, so that the weight of the seated person can be supported by the entire side frame of the wheelchair. This eliminates the problem that the upholstered seat surface is bent, and the seated person can maintain a stable sitting position.

  FIG. 4 is a view showing a state in which the wheelchair seat plate 3 according to the present invention is mounted on the wheelchair 1. The wheelchair seat plate 3 is provided with locking claws 10a and 10b on the lower surface and adjustment members 11 and 14 to which the wheelchair seat plate 3 is fixed. Therefore, when the wheelchair seat plate 3 is mounted on the wheelchair 1, Depending on the fixing positions of the locking claws 10a and 10b and the size and thickness of the adjusting members 11 and 14, the wheelchair 1 has a certain inclination from the back to the front. As a result, it is possible to eliminate the danger that the occupant is displaced forward and falls due to this inclination. The inclination can be arbitrarily changed by changing the fixing positions of the locking claws 10a and 10b, the sizes of the adjusting members 11 and 14, and the like according to the body shape of the seated person and the degree of obstacle.

  With the above configuration, the wheelchair seat plate 3 of the present invention can be adjusted and mounted on an off-the-shelf wheelchair and can be easily removed, so that the folding function of the wheelchair is not impaired. Moreover, since it is a simple structure, it can provide to a user at low cost. And, by using the wheelchair seat plate of the present invention, the seat surface deflection when seated in the wheelchair is eliminated, and the seated person can sit in the wheelchair in a good posture and with no pain for a long time due to the human-friendly shape In addition, since it is mounted with a certain inclination with respect to the seating surface of the wheelchair, it is possible to prevent the seated person's buttocks from shifting and dropping, and to enable sitting in a stable balance.

DESCRIPTION OF SYMBOLS 1 Wheelchair 2 Back surface part 3 Seat surface board 4a, 4b Seat part side frame 5 Seat surface 10a, 10b Locking claw part 11 Adjustment part 13a, 13b Locking part 11, 14 Adjustment member 15, 16 Screw part

Claims (1)

A seat plate that can be detachably attached to a seat portion of a commercially available wheelchair, the seat plate having an adjustment member that is movable in a lateral direction on a lower surface , and an engaging claw at an end portion of the adjustment member The seat surface plate is attached to the wheelchair by engaging the locking claw portion with the locking portion provided on the side surface frame of the wheelchair seat surface, and the seat surface plate is attached to the wheelchair. In some cases, a wheelchair seat plate is characterized in that a certain slope is formed from the seat rear portion toward the seat front portion .

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