Power transmission apparatus for bicycle

Details Power transmission apparatus for bicycle Power transmission apparatus for bicycle

2005-04-12

2005-04-12

Lewis, Tisha (Department: 3681)

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Nonplanetary transmission is friction gearing

C475S209000, C180S221000, C280S260000

Reexamination Certificate

active

06878084

ABSTRACT:
A power transmission apparatus for a bicycle is provided comprising:a transmission driving part for transmitting a rotating force generated by a pedaling force applied to a sun gear shaft of a pedal part in the bicycle to a rear wheel through a crown sprocket gear, the transmission driving part comprising a planet gear part operated by a gear shift; anda transmission driven shaft part connected to a driven shaft to transmit a transmission rotational force through a rear roller gear part, the transmission rotational force being increased by changing an auxiliary transmission part to a hub crown sprocket gear of a hub shaft of a rear wheel through a front roller gear part.

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