Arm and leg powered drive system for a vehicle

Details Arm and leg powered drive system for a vehicle Arm and leg powered drive system for a vehicle

1979-08-10

1981-06-02

Love, John J.

Land vehicles

Wheeled

Occupant propelled type

280236, 280250, B62M 112

Patent

active

042707668

ABSTRACT:
A drive system for an operator powered vehicle utilizing both arm and leg power. Leg power drives an axle carried sprocket coupled to a torque tube via a roller chain. A hand crank is powered by arm motion and is coupled to a concentric torque tube by a unidirectional clutch. Rotary motion is accordingly imparted to the torque tube by the arms or legs, jointly or individually, which motion is transmitted to a wheel hub via a roller chain and sprocket arrangement. A chain shifter provides a variable speed power transmission between said torque tube and the wheel hub. Brake cable actuating members on the wheel axle and the hand crank permit selective tensioning of brake cables actuating front and rear wheel brakes. A modified form of the invention dispenses with the torque tube. Driving and driven sprockets of a hand crank assembly are fixedly mounted on a hand crank.

REFERENCES:
patent: 2390719 (1945-12-01), Kurth
patent: 2533728 (1950-12-01), Gedat et al.
patent: 3193305 (1965-07-01), Hendricks
patent: 3910599 (1975-10-01), Thomas

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