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
1998-08-17
2000-04-04
Bucci, David A.
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 80, 474 69, F16H 900
Patent
active
060454709
ABSTRACT:
A front derailleur for shifting gears on a chain driven bicycle, the chain having a drive run and a return run from a plurality of chainwheels, uses a chain supporting idler cog to vertically control the chainline of the chain drive run and to also move transversely to shift the chain from one of the chainwheels to another.
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Baumann Stephen J.
Wilcox Weston M.
Bucci David A.
Charles Marcus
Trek Bicycle Corporation
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