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Power-driven wheelchair chassis device

A technology of electric wheelchairs and linkage devices, which can be used in transportation and packaging, vehicle rescue, patient chairs or special transportation tools, etc. It can solve problems such as tipping and instability of electric wheelchairs, and achieve reduced inclination changes and comfortable rides Safer and improve the effect of barrier-crossing ability

Inactive Publication Date: 2006-10-04
KYMCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, it can be known in the experimental process of the 50mm height of the barrier that when the main roller 141 crosses the obstacle and the rear roller 125 touches the obstacle, the load ratio value of the front roller 141 drops to 0.3%.
From a mechanical point of view, when the electric wheelchair crosses obstacles, the load ratio value of the front and rear rollers 115, 125 and the main roller 141 in the process is the anti-tilt and support capacity of the electric wheelchair when it actually moves. The moment the roller 141 crosses the obstacle and the rear roller 125 touches the obstacle, the electric wheelchair is in an extremely unstable state, and the probability of tipping over is extremely high

Method used

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  • Power-driven wheelchair chassis device
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Experimental program
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Embodiment Construction

[0046] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.

[0047] refer to Figure 4 , a preferred embodiment of the chassis device 2 of an electric wheelchair of the present invention can be equipped with a riding device (not shown), which can be used by people who lack independent mobility to walk and use in daily life. .

[0048] The chassis device 2 includes a main frame device 3 , a front wheel device 4 , an elastic return device 5 , a driving wheel frame device 6 , a linkage device 7 , and a rear wheel device 8 .

[0049] The main frame device 3 includes two spaced main frames 31 (only one main frame 31 is shown in the figure for convenience of description), each main frame 31 has a front connecting section 311, a rear connecting section 312, and A setting section 313 connecting the front and rear connect...

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PUM

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Abstract

This invention is a power-driven wheelchair undercarriage device comprising a main carframe unit, a front-wheel set pivoted at front interconnecting piece of the main carframe unit, a elastic recovery unit joined between the main carframe unit and the front-wheel set, a driving wheel carrier unit pivoted with the front-wheel set, a connecting device pivoting the main carframe unit and the driving wheel carrier unit, and a rear-wheel set arranged at the main carframe unit back. When crossing barrier, the elastic recovery unit is compressed to release elastic energy, and the energy is enhanced by the front-wheel set backward withdrawing; meanwhile the connecting device drives the carframe unit to make the power-driven wheelchair have a best angular variable and contact counteracting force.

Description

【Technical field】 [0001] The invention relates to a chassis device, in particular to a chassis device of an electric wheelchair. 【Background technique】 [0002] Electric wheelchairs are medical aids used by people with neuromuscular disease, functionally degraded elderly, physically handicapped and chronic patients who lack independent mobility in their daily lives. [0003] Since the general road surface has ups and downs and bumpy conditions, such as stairs, or raised road surfaces, etc., the electric wheelchair needs to have the ability to cross general obstacles. [0004] Generally, when riding an electric wheelchair to cross an obstacle, the center of gravity of the occupant and the electric wheelchair will shift, causing the load value of each roller to change. The load value of the rollers of the electric wheelchair is seriously uneven and the occupant is injured; in addition, the physical condition of the person who will use the electric wheelchair is mostly unable ...

Claims

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Application Information

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IPC IPC(8): A61G5/10A61G5/06
Inventor 许正和黄瑞宏李岳颖施宗熙
Owner KYMCO
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