Bicycle speed control system for controlling a change speed devi

Details Bicycle speed control system for controlling a change speed devi Bicycle speed control system for controlling a change speed devi

1991-11-12

1993-02-16

Braun, Leslie A.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74489, 745022, F16C 110, G05G 906

Patent

active

051860724

ABSTRACT:
A speed control system for a bicycle for controlling a change speed device through a change speed wire, having a shift lever movable in opposite directions from a home position, a take-up reel connected to one end of the wire for winding up the wire with movement in one direction of the shift lever, a one-way transmission mechanism for transmitting only movement in one direction of the shift lever to the take-up reel, position retaining teeth and a position retaining pawl for retaining the take-up reel in a plurality of winding positions, and a retention canceling cam mechanism for canceling retention of the take-up reel by the position retaining teeth and pawl, and for allowing the take-up reel to rotate in the wire unwinding direction. The take-up reel is successively shifted in the winding direction by reciprocating the shift lever on one side of the home position and, when the shift lever is shifted to the other side of the home position, the take-up reel is freed from its retained position by action of the release element.

REFERENCES:
patent: 3104559 (1963-09-01), Dotter
patent: 3742580 (1973-07-01), Sullivan, Jr.
patent: 3943794 (1976-03-01), Shimada
patent: 3972247 (1976-08-01), Armstrong
patent: 4066154 (1978-01-01), Ross
patent: 4699018 (1987-10-01), Tagawa
patent: 4731046 (1988-03-01), Juy
patent: 4936160 (1990-06-01), Barnard et al.
patent: 5012692 (1991-05-01), Nagano
patent: 5052241 (1991-10-01), Nagano
patent: 5094120 (1992-03-01), Tagawa

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