JP3094703U - Caster with shock absorbing function for wheelchairs and walking aids - Google Patents

Abstract

(57) [Summary] [Problem] To reduce the impact of starting resistance at the same time as reducing the impact when going over a step in a wheelchair. SOLUTION: FIG. 1 A wheel is fixed to an axle of a wheelchair and a caster with a shock absorbing function for a walking aid, a wheel is fixed by a swing bracket, and a supporting bracket is fixed by a fulcrum shaft.

Description

[Detailed description of the invention]   [0001]     [Technical field to which the invention belongs] The present invention relates to a caster that mainly plays a role of a front wheel of a wheelchair. .   [0002]     [Prior art] Conventional wheelchairs and casters with shock absorbers for walking aids Most of the structures emphasize the movement of the axle, and the fulcrum axis, which is the center of the rotational movement of the axle, The distance in the horizontal direction was greater than the axis.   [0003]     [Problems to be solved by the invention] However, since the movement acting in the vertical direction is larger, the caster The sun was sinking and the starting resistance was heavy.   [0004] From the above points, the present invention reduces the shock when going over a step in a wheelchair and at the same time The purpose is to reduce the effect of starting resistance.   [0005]     【Example】 An embodiment of the present invention will be described below with reference to the drawings. Figure 1 is a side view of a new type of casters with shock absorbing function for our school wheelchairs and walking aids. It is. Fig. 2 shows a conventional wheelchair and a caster with a cushioning function for walking aids. It is a side view of a type | mold.   [0006] In the figure, the wheel is fixed with the axle, the wheel is fixed by the swing bracket, and it is The structure is such that the support bracket is fixed by a fulcrum shaft.   [0007] Ax moves in the horizontal direction and Ay moves in the vertical direction within the range of the angle θ.   [0008] According to the present invention, when the distance between the fulcrum axis and the axle is the same, the wheelchair and the walking device according to the present invention are used. Casters with shock absorbers for line assist devices have a fulcrum shaft on the vertical extension of the axle. When the wheel is moved at the same angle as the conventional one, the wheel moves up and down. The momentum is smaller than the conventional one. In contrast, the amount of movement in the horizontal direction is Become larger. This is because the rotational position of the axle about the fulcrum axis is different. Due to different angles of movement with respect to the ground (horizontal plane). In this way, our school plan is Reduces the impact of crossing the caster and minimizes the vertical movement of the caster. Comb, enabling greater horizontal movement, thereby reducing the starting resistance This is a useful invention to reduce the sound.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a new type of a caster with a shock absorbing function for a wheelchair and a walking aid according to the present invention. FIG. 2 is a side view of a conventional caster with a shock absorbing function for a school wheelchair and a walking aid. [Explanation of symbols] Support shaft Support bracket Swing bracket Axle Wheel

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[Procedure amendment] [Date of submission] March 5, 2003 (2003.3.5) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] Claims for utility model registration [Amendment] [Method] Change [Contents of amendment] [Claims for utility model registration] [Claim 1] In a caster having a cushioning function, a fulcrum connecting an upper support bracket and a lower swing bracket is on an extension of a vertical axis of an axle. To be provided. Eliminating the horizontal distance between the axle and the fulcrum, which is the center of rotational movement of the swing bracket, reduces the amount of vertical movement of the wheel and increases the amount of horizontal movement of the wheel. Caster with cushioning function for wheelchairs and walking aids.

Claims (1)

[Claim 1] Compared with a conventional caster with a shock absorbing function, by changing the position of a fulcrum shaft, which is the center of rotational movement of the axle, the amount of movement of the axle in the vertical direction is reduced. A caster with a cushioning function for wheelchairs and walking aids, characterized in that it is smaller than conventional ones and the amount of movement in the horizontal direction is larger than conventional ones.