Chain control apparatus

Details Chain control apparatus Chain control apparatus

1990-09-06

1991-05-07

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...

280250, 474 82, F16H 1108

Patent

active

050132857

ABSTRACT:
Chain control 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 apparatus 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 and wherein the chain control apparatus is mounted for permitting pivotal movement thereof around a generally horizontal axis and around at least one generally vertical axis.

REFERENCES:
patent: 4599079 (1986-07-01), Chappell
patent: 4637808 (1987-01-01), Nakamura
patent: 4900291 (1990-02-01), Patterson
patent: 4919644 (1990-04-01), Carlyle

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