Bicycle speed change operation assembly
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United States of America Patent
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-
May 31, 1994
Grant Date -
N/A
app pub date -
Jul 15, 1992
filing date -
Feb 13, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For the purpose of providing a bicycle speed change operation assembly capable of ensuring stable handlebar operation and immediate braking operation as well as remarkably improved riding safety during the speed change operation, the following technical means are provided: A bicycle speed change operation assembly according to the present invention comprises a cylindrical operation member (11) rotatably supported around a grip end portion of a handlebar (3), a speed change operation mechanism (12) provided in proximity of that grip end portion of the handlebar (3) and capable of winding and unwinding a speed control cable, and a transmission mechanism (13) provided between the cylindrical operation member (11) and the speed change operation mechanism (12) for driving this speed change operation mechanism (12) in response to the rotation of the cylindrical operation member (11), wherein the speed change operation mechanism (12) functions to wind or unwind the control cable in response to rotational reciprocation of said cylindrical operation member in one direction from a neutral rotational position.
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