Speed control device for a bicycle

Details Speed control device for a bicycle Speed control device for a bicycle

1988-07-11

1990-05-01

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74523, 745022, 74527, 74531, G05G 104, G05G 106

Patent

active

049208187

ABSTRACT:
A speed control device for a bicycle is provided, which includes a positioning mechanism comprising a positioning member having a plurality of engaging portions, an engaging member selectively engageable one at a time with the engaging portions and an elastic member for biasing the engaging member toward the engaging portions. A reaction force of the elastic member affects the torque of the operating lever to generate a clicking vibration felt by the cyclist. The speed control device includes a thrust bearing which, when the operating lever is operated and the engaging member disengages from one of the engaging portions and transfers to the adjacent engaging portion, bears the reaction force of the elastic member, thereby reducing the torque of the operating lever and amplifying the clicking vibration thereof.

REFERENCES:
patent: 1683715 (1924-08-01), Erban
patent: 4267744 (1981-05-01), Yamasaki
patent: 4699018 (1987-10-01), Tagawa
patent: 4744265 (1988-05-01), Nagano
patent: 4751850 (1988-05-01), Nagano
patent: 4751852 (1988-06-01), Nagano

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