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
1979-12-10
1981-12-22
Husar, C. 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...
74501R, F16H 1104
Patent
active
043068715
ABSTRACT:
A speed-changing device for a bicycle, having a pantograph mechanism which comprises four members, a supporting member, two linkage members, and movable member, is pivoted through a horizontal spindle swingably to a bracket fixed to a fork end of the bicycle. A wire holder for securing one end of a control wire is provided at one of the two linkage members and movable member, and a wire guide for guiding the control wire is disposed at a position outward with respect to the common axis of a multi-stage sprocket and beyond a phantom straight line connecting the axes of the wire holder and horizontal spindle.
REFERENCES:
patent: 3974707 (1976-08-01), Nagano
patent: 4226132 (1980-10-01), Nagano et al.
Berman Conrad
Husar C. J.
Shimano Industrial Company Limited
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