Hand assisted propulsion apparatus for bicycle

Details Hand assisted propulsion apparatus for bicycle Hand assisted propulsion apparatus for bicycle

1989-10-19

1991-03-26

Marmor, Charles A.

Land vehicles

Wheeled

Occupant propelled type

2802421, 2802884, 74525, 74562, 745944, B62M 112

Patent

active

050022989

ABSTRACT:
The hand assisted propulsion for a bicycle embodies special foot pedals which have their shafts extended. The shaft extension is engaged in a roller bearing at one end of a hand crank. At the other end of the hand crank is a handle used by the cyclist to augment the operation of the foot pedal. This provides hand and arm exercise to the cyclist as well as increasing the power driving the bicycle's rear wheel.

REFERENCES:
patent: 3895825 (1975-07-01), Sink
patent: 4354691 (1982-10-01), Sanders et al.
patent: 4867441 (1989-09-01), Blakeman

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