Power operated wheelchair

Details Power operated wheelchair Power operated wheelchair

1993-03-11

1994-01-04

Focarino, Margaret A.

Motor vehicles

Power

Electric

180907, 180 644, B60K 102

Patent

active

052752488

ABSTRACT:
A power-driven and steered wheelchair comprises a pair of ground-engaging wheels mounted in laterally-spaced relationship to a frame carrying a seat for an occupant and supporting the power source and a transaxle transmission for imparting parting both driving and steering power to the ground-engaging wheels. Steering is accomplished by employing separate planetary drive mechanisms for each of the primary ground-engaging wheels and imparting rotation in opposite directions to the ring gears of such planetary drive mechanisms to effect the rotation of one wheel at a greater speed than the other wheel in either a forward or rearward direction, thus producing power steering of the wheelchair.

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patent: 4998591 (1991-03-01), Zaunberger
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