Gear shift device for bicycles

Details Gear shift device for bicycles Gear shift device for bicycles

2006-05-23

2006-05-23

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Condition responsive

C082S080000, C082S103000

Reexamination Certificate

active

07048659

ABSTRACT:
A motorized bicycle gear shift device comprising a derailleur and an electric motor, associated directly with the derailleur, for controlling the derailleur and an electric transducer of absolute type, also associated with the derailleur for producing an electric signal indicative of the absolute position of the movable body of the derailleur.

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