Drive mechanism for a bicycle transmission assist mechanism

Details Drive mechanism for a bicycle transmission assist mechanism Drive mechanism for a bicycle transmission assist mechanism

2005-03-01

2005-03-01

Charles, Marcus (Department: 3682)

Machine element or mechanism

Elements

Cranks and pedals

C074S594200, C474S160000

Reexamination Certificate

active

06860171

ABSTRACT:
A drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member. The drive member includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotational direction of the crank arm.

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