Power-supplemented manual height-adjusting wheelchair
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United States of America Patent
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Aug 2, 2011
Grant Date -
Jun 17, 2010
app pub date -
Dec 16, 2008
filing date -
Dec 16, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A wheelchair having a lower frame with drive wheels and forwardly extending arms with casters and an upper frame with a seat and backrest. Linkage assemblies on opposing sides pivotably attach at a first end to the lower frame and at a second end to the upper frame. Power cylinders attached on opposing sides are extendable between the upper frame and the lower frame and are lockable from moving from a selected position. When unlocked, the power cylinders apply a supplemental force in association with a force applied by a user on the drive wheels for moving the upper frame relative to the lower frame guided by the linkage assembly. A method of adjusting the seat height of a wheelchair is disclosed.
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Family
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