Mechanism for driving bicycles

Details Mechanism for driving bicycles Mechanism for driving bicycles

2005-08-16

2005-08-16

Luby, Matthew (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S288100, C280S237000, C474S088000

Reexamination Certificate

active

06929276

ABSTRACT:
Improved mechanical structure for increased efficiency in the transfer of the peddling force applied to a pedal crank assembly to the rear wheel of a bicycle is disclosed. This structure increases efficiency by decreasing the loss of exerted energy when peddling at dead spots, which dead spots are the common terminology used to refer to when the legs are either at down-stroke and up-stroke positions.

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