Wheelchair auxiliary lift for going up and down stairs
The wheelchair mobility lift system addresses the challenges of safely navigating stairs by integrating support poles, guide rails, and a rope mechanism, allowing for safe and independent wheelchair movement with minimal assistance.
Patent Information
- Application Number
- JP2023179176
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-28
- Publication Date
- 2025-04-09
AI Technical Summary
Existing wheelchair mobility solutions for navigating stairs are cumbersome and require multiple people to safely move a wheelchair up or down, often resulting in accidents when rushed.
A wheelchair mobility lift system that integrates pipe-shaped support poles with stabilizing brackets, guide rails, and a rope mechanism, allowing a wheelchair to be safely moved up and down stairs with minimal assistance.
Enables safe and independent wheelchair movement up and down stairs with reduced risk of accidents, requiring only one person for assistance, and preventing sudden drops through the use of rollers and folding plates.
Smart Images

Figure 2025058793000001_ABST
Abstract
Description
[Technical field]
[0001] To provide a wheelchair staircase ascending / descending device for wheelchairs for elderly or disabled persons that allows the wheelchairs of elderly or disabled persons to move up and down the stairs via guide rails that are integrated with a plurality of support posts, pillars, and cross beams fixed to the staircase treads. [Background technology]
[0002] Traditionally, in an emergency, wheelchairs carrying elderly or disabled people were evacuated downstairs with the assistance of several people. Summary of the Invention [Problem to be solved by the invention]
[0003] This resulted in the following problems: (i) Elderly and disabled people in wheelchairs need several helpers to move up and down the stairs, and there is a risk of tripping when they are in a hurry. The present invention has been made to solve these problems. [Means for solving the problem]
[0004] Tall pipe-shaped supports are fixed to the tread surface at the left and right corners of the staircase with wood screws, etc., and support stabilizing brackets are inserted from above into the supports to prevent the supports from swinging back and forth. The plate part is fixed to the step above with a bracket for stabilizing the support pillar via wood screws. TIFF2025058793000002.tif13146Fix the guide rail at a low position with the fixing screws of the support, and attach and fix the guide rail. The cross beam with the plate in the center that fixes the guide rail hanging bracket is screwed to the left and right support members. A wheel is attached to a threaded rod that is integrated with the axis of the guide roller that slides along the staircase, and one end of a rope with hooks on both ends for suspending the wheelchair is hung on the wheel protruding downward, and the other end is hung on the wheelchair frame.Furthermore, by using a folding plate equipped on multiple fixed supports on the step board, the wheelchair can be stopped halfway up the stairs, and the structure allows the wheelchair to be safely moved up and down the stairs with one assistant. The above features make this wheelchair stair climbing and descending mobility assistance lift possible. Effect of the Invention
[0005] TIFF2025058793000004.tif11147The rollers work together to hoist the wheelchair, and by using a folding plate attached to the support, the danger of the wheelchair suddenly dropping can be prevented, and the wheelchair can be moved up and down safely with just one attendant. [Brief description of the drawings]
[0006] [Figure 1] This is a diagram showing an example of use in which the parts of the present invention are assembled, a rope hook is attached to the wheel device protruding from the guide roller, and one of the hooks is attached to a wheelchair to move the wheelchair. [Diagram 2] FIG. 2 is a side view showing the structure in which the auxiliary lift of the present invention is fixed integrally to a staircase tread. [Diagram 3] FIG. 2 is a side view of the columnar member of the present invention. [Figure 4] FIG. 2 is a side view of the member support of the present invention. [Diagram 5] FIG. 2 is a side view of the cross beam of the present invention. [Figure 6] FIG. 4 is a cross-sectional view of a guide rail of the member of the present invention. [Figure 7] FIG. 2 is a plan view of the component column stabilization bracket of the present invention; [Figure 8] FIG. 2 is a view of a guide rail bracket for mounting the guide rail of the present invention to a cross beam. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0007] Tall pipe-shaped supports are fixed to the tread surface at the left and right corners of the staircase with wood screws, etc., and support stabilizing brackets are inserted from above into the supports to prevent the supports from swinging back and forth. The plate part is fixed to the step board above with a support bracket via wood screws. TIFF2025058793000005.tif11141Fix the guide rails at a low position with the fixing screws of the support, and attach and fix the guide rails. The cross beam with the plate in the center that fixes the guide rail hanging bracket is screwed to the left and right support members. A wheel is attached to a threaded rod that is integrated with the axis of the guide roller that slides along the staircase. One end of a rope with hooks on both ends for suspending the wheelchair is hung on the wheel that protrudes downward, and the other end is hung on the wheelchair frame.Furthermore, by using a folding plate provided on multiple fixed supports on the step board, the wheelchair can be stopped halfway up the stairs, and the structure allows the wheelchair to be safely moved up and down the stairs with one assistant. The present invention has the above-mentioned configuration. When using this, fix the support base to the left and right corners of the staircase board with multiple wood screws, insert the pillar body into the pillar, and fix the height of the pillar body lower than the height of the stairs with the fixing screws of the pillar. TIFF2025058793000007.tif13149The rails are integrally configured via a guide rail hanging bracket, and a rope hook is hung on the guide roller wheel. One end of the hook can be hooked to the wheelchair frame to slightly raise the wheelchair, allowing the floating wheelchair to move up and down. [Explanation of symbols]
[0008] 1 post 2 pillars 3 crossbeam 4 Branch material 5-post stabilizing bracket 6 Guide rail 7 Guide rail hanging bracket 8 Intermediate guide rail 9 Upper curved guide rail 10 Lower curved guide rail 11 Guide rail connecting plate 12 Rope Hanger 13 Folding Plate
Claims
[Claim 1] Tall pipe-shaped supports are fixed to the tread surface at the left and right corners of the staircase with wood screws, etc., and support stabilizing brackets are inserted from above into the supports to prevent the supports from swinging back and forth. The plate part is fixed to the step above with a bracket for stabilizing the support pillar via wood screws. The guide rail is fixed at a low position with a fixing screw of the support, and the cross beam with the plate in the center for fixing the guide rail hanging bracket is screwed to the left and right support members. A wheel is attached to a threaded rod which is integral with the axis of a guide roller which slides along the staircase, one end of a rope with hooks on both ends for suspending a wheelchair is hung on the wheel protruding downward, and the other end is hung on the wheelchair frame. In addition, by using a folding plate attached to a plurality of fixed supports on the step board, the wheelchair can be stopped midway up the stairs, and a single attendant can safely go up and down the stairs.