Rear derailleur for bicycle gears

Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Including belt shiftable axially from one to another surface...

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F16H 1108

Patent

active

048425680

ABSTRACT:
A rear derailleur for bicycle gears, which is adapted to derail the bicycle chain on a series of sprockets of increasing diameter carried by the rear hub of the bicycle, comprises a support body for mounting on the bicycle frame and a rocker arm carrying idler wheels for the chain. The rocker arm is mounted on the support body for sliding movement along an axis parallel to the axis of the rear hub of the bicycle and is pivotable about that axis relative to the support body. An auxiliary member fixed to the bicycle frame supports the body for pivoting about an axis parallel to the axis of the hub.

REFERENCES:
patent: 4504250 (1985-03-01), Juy
patent: 4637808 (1987-01-01), Nakamura

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