Motor vehicles – Power – Electric
Patent
1991-03-05
1992-06-16
Kashnikow, Andres
Motor vehicles
Power
Electric
180 685, 180907, 2801122, 280755, 280788, 297DIG4, B60L 1118, B60K 100, B60G 1120, B62K 1164
Patent
active
051218062
ABSTRACT:
An improved power wheelchair is provided that provides exceptional maneuverability, stability and directional tracking characteristics. The wheelchair includes a torsional frame and a rigid stability frame. Two main wheels and a pivoting drive wheel are coupled to the torsional frame. At least two freely rotating casters are coupled to the stability frame. The torsional frame and stability frame interact to provide automatic compensation for directional tracking errors caused by shifts in the mass center of an occupant. The wheelchair can be equipped with either manual or power steering. A unique three-point battery mounting assembly also permits easy replacement of batteries.
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Culbreth Eric
Kashnikow Andres
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