Motor vehicles – Power – Electric
Patent
1994-10-03
1996-07-02
Culbreth, Eric D.
Motor vehicles
Power
Electric
180908, 267 41, 267165, 267262, 267229, 280699, B60K 100
Patent
active
055312845
ABSTRACT:
A wheelchair (20) including a wheelchair frame (22) and a seat assembly (24) carried by the wheelchair frame (22). A detachable power drive assembly (32) having power driven wheels (40, 40') is releasably coupled to the wheelchair frame (22) and is mounted for selective removal of the drive assembly (32) as a unit from the wheelchair frame (22). Wheel mounting ports (76, 76') are also provided in the wheelchair frame (22) for releasably receiving a pair of manually-operable drive wheels (34, 34'). An anti-tip suspension (80) is also provided and includes a suspension arm (84) which is mounted to resist rearward tipping of the wheelchair by a non-linear restoring force. A wheel lock (108) is mounted for movement between a deployed operable position and a stored inoperable position. In the deployed position, the wheel lock (108) extends laterally outwardly of the wheelchair frame (22) for engagement with and braking of manually operable drive wheels (34, 34').
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Culbreth Eric D.
Quickie Designs Inc.
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