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
1980-01-28
1981-05-26
Staab, Lawrence 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...
474134, F16H 1104
Patent
active
042696011
ABSTRACT:
A rear derailleur for a bicycle, which comprises a base member, two linkage members and a movable member, the movable member supporting one pulley plate having a guide pulley and tension pulley. The guide and tension pulleys provide separate guard plates respectively so that a gap is formed therebetween for allowing a driving chain to pass through the gap closed by the use of a tension spring.
REFERENCES:
patent: 3710636 (1973-01-01), Ozaki
patent: 4161124 (1979-07-01), Juy
patent: 4198874 (1980-04-01), Nagano et al.
Shimano Industrial Company Limited
Staab Lawrence J.
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