Electrical wheelchair with spliced front and rear wheel drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 2004
Grant Date -
Oct 10, 2002
app pub date -
Dec 28, 2001
filing date -
Apr 10, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The electrical wheelchair with spliced front wheel drive and rear wheel drive of the invention comprises a wheel frame and a chair. The wheel frame has a hollow column with a locating ring on its top and a plurality of locating chute on the ring rim. A semi-circular protrusion is placed on the surface of the locating ring. The wheel frame provides a power rod for controlling the moving direction of the wheelchair. There are two foldable footplates erected, one in the front side and the rear side and the footplate is folded when not in use. Beneath the chair, there is rotary shaft inserted in the hollow column. Along the side of the rotary shaft, there install two locating seats, a control stick passing through the holes of the locating seats. The control stick is operated to engage or disengage the locating ping from the locating chute. On the correspondent opposite position of the locating ring, there installs a micro switch. Releasing the control stick allows changing the direction of the chair along with the footplate. The semi-circular hump will activate the micro switch to change the moving direction of the power rod.
First Claim
Family
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Cited Art Landscape
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