Chain control apparatus

Details Chain control apparatus Chain control apparatus

1988-10-27

1990-04-24

Bui, Thuy M.

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

049196448

ABSTRACT:
Chain control guide apparatus is provided for a bicycle having a chain journaled around spaced apart gears so as to have an upper run and a lower run wherein the chain control guide apparatus, such as an idler pulley, limits movement of the lower run in directions away from the upper run when the bicycle is operated in rough terrain or is used in jumping operations.

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