Front suspension system for an electric wheelchair
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United States of America Patent
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Jun 7, 2016
Grant Date -
Feb 25, 2016
app pub date -
Jul 31, 2015
filing date -
Aug 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A front suspension system for an electric wheelchair includes front pivot shaft, a front wheel retainer, an elasticity resistance member, and a front shock absorber. The front shock absorber is disposed on a horizontal first section of the front wheel retainer so as to improve climbing capability of the wheelchair. The elasticity resistance member is disposed between the frame and the front wheel retainer and has two ends connected to the front wheel retainer and the abutting member of the frame, respectively. When the front wheels encounters bumpy road and makes the front wheel retainer pivot, the elasticity resistance member will be compressed to produce a reaction force toward the front wheel retainer and the abutting member of the frame, respectively, so that the front wheel retainer is pressed down to keep pressing against the flat bearing surface, and the frame is also pressed downward to prevent tipping backward.
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Family
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