Hand crank wheelchair drive

Details Hand crank wheelchair drive Hand crank wheelchair drive

1986-12-11

1988-07-19

Love, John J.

Land vehicles

Wheeled

Occupant propelled type

192 5, 192 6R, 192 94, 280250, 280289WC, H61G 502, B62M 114

Patent

active

047580135

ABSTRACT:
A hand crank powered wheelchair with forward, coast, reverse, and braking capability. The wheelchair has a left and right hand crank. Each hand crank is used to independently control the two rear wheels. A clutch and brake is contained in the hub of each rear wheel. The clutch drives wheel forward when hand crank is rotated forward and allows wheel to coast when hand crank stops rotation. A reverse enable lever selects brake or reverse mode. When in brake mode minimal energy applied to crank in the reverse direction will slow or stop rear wheel. When in reverse mode, brake acts as clutch, allowing reverse rotation of hand crank to drive rear wheel backward. The drive may include a gear shift mechanism. Drives of the invention may be applied to other wheeled vehicles such as delivery tricycles.

REFERENCES:
patent: 765945 (1904-07-01), Weiler
patent: 1018471 (1912-02-01), Zimmerman
patent: 2410785 (1946-11-01), Hood
patent: 3670856 (1972-06-01), Segawa
patent: 4506901 (1985-03-01), Tosti

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