Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Including belt shiftable axially from one to another surface...
Patent
1984-07-30
1986-03-11
Novosad, J. Stephen
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
474 82, F16H 1108, F16H 722
Patent
active
045753652
ABSTRACT:
A rear derailleur has a chain guide which includes a guide pulley, a tension pulley, and at least one pulley plate for rotatably supporting the pulleys. A driving chain guided by the guide pulley is switched to a desired sprocket of a multistage sprocket assembly for changing the bicycle speed. The guide pulley is supported axially movably with respect to the pulley plate. Between one lateral side of the guide pulley and the inside surface of the pulley plate a gap is provided for allowing the guide pulley to move axially relative to the pulley plate by means of tension of the chain.
REFERENCES:
patent: 4286953 (1981-09-01), Shimano
patent: 4348198 (1982-09-01), Shimano
patent: 4410313 (1983-10-01), Shimano
Bui Thuy M.
Novosad J. Stephen
Shimano Industrial Company Limited
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