Bicycle derailleur having an improved mechanism for swinging a c

Details Bicycle derailleur having an improved mechanism for swinging a c Bicycle derailleur having an improved mechanism for swinging a c

1980-04-21

1981-09-01

Husar, C. J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

F16H 1108

Patent

active

042869536

ABSTRACT:
A bicycle derailleur comprising a supporting member supported swingably through a first vertical shaft, the supporting member supporting a change-over frame swingably through a second horizontal shaft having an axis intersecting the axis of the first shaft substantially at a right angle therewith, a first pulley supported rotatably to the change-over frame through the second shaft and a second pulley supported rotatably to the foremost end of the change-over frame through a third horizontal shaft in parallel with the second shaft. In operation, a control wire is operated to swing the change-over frame together with the supporting member around the first shaft, thereby switching a driving chain to a selected sprocket of a multistage sprocket assembly.

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