Expandable armrest of wheel chair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 8, 2013
Grant Date -
Nov 17, 2011
app pub date -
Sep 15, 2010
filing date -
May 12, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An expandable armrest of a wheel chair includes a fixed part having a first pivotal portion which includes a first pivotal hole. A movable part is pivotably connected to the first pivotal portion of the fixed part by its second pivotal portion. A first transverse hole and a second transverse hole are defined in the second pivotal portion. A slide member is slidably inserted into the slots of the second pivotal portion and has an inclined hole in which an engaging member is engaged. The engaging member has a first end and a second end. A trace that the engaging member moves in the inclined hole constantly intersects a trace that the first end moves in the first transverse hole and a trace that the second end moves in the second transverse hole, such that the movable part is positioned by controlling the movement of the slide member.
First Claim
Family
International Classification(s)
Cited Art Landscape
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