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
1995-11-03
1997-04-29
Schoeppel, Roger 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...
474 80, F16H 906, F16H 5900
Patent
active
056243340
ABSTRACT:
A derailleur cable router changes the direction of a derailleur cable operatively attached to a rear derailleur to a bicycle frame. The rear derailleur is actuated by variation in tension applied to the derailleur cable from a direction rearward of the derailleur. The tension in the derailleur cable is controlled by a shifter attached to a distal end of the derailleur cable, the shifter being mounted to the bicycle frame forward of the derailleur. The derailleur cable includes a cable housing around at least a portion of the derailleur cable with the derailleur housing being fixed against lengthwise movement relative to the bicycle frame by attachment to the bicycle frame. The derailleur cable router includes a frame having a first and a second end. A housing is provided at the first end of the frame and the housing is attachable to a derailleur cable housing. A second housing is provided at the second end of the frame, the second housing being attachable to a derailleur cable feed of a rear derailleur. The first housing includes a first cable channel for receiving a derailleur cable from within a derailleur cable housing and the second housing includes a second cable channel for passing a derailleur cable to a rear derailleur cable feed. A pulley having an axis of rotation in a circumferential groove is mounted to the frame for rotation about its axis of rotation intermediate the first and second ends of the frame with the circumferential groove of the pulley aligned with the first and second cable channels so that a derailleur cable can be received in the first cable channel, engaged with a portion of the circumferential groove and passed through the second cable channel. Preferably the first cable channel, the second cable channel channels so that a derailleur cable can be received in the first cable channel, engaged with a portion of the circumferential groove and passed through the second cable channel. Preferably the first cable channel, the second cable channel and the circumferential groove of the pulley all lie within substantially the same plane.
REFERENCES:
patent: 3979962 (1976-09-01), Kebsch
patent: 4002080 (1977-01-01), Huret et al.
patent: 4437848 (1984-03-01), Shimano
patent: 4832662 (1989-05-01), Nagano
patent: 5201236 (1993-04-01), Nagano
Avid Enterprises, Inc.
Schoeppel Roger J.
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