Change speed lever apparatus for use in bicycle

Details Change speed lever apparatus for use in bicycle Change speed lever apparatus for use in bicycle

1991-12-04

1993-06-29

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74489, 74523, 74527, F16C 110

Patent

active

052224120

ABSTRACT:
A change-speed lever apparatus for use on a bicycle, comprises: a fixed member; a winding member pivotably supported to the fixed member and urged toward a cable-winding direction, the winding member winding a change-speed cable; a control lever operable to pivot the winding member only in the cable-winding direction via a one-way mechanism with an operation thereof in a forward direction against the urging force. A position-maintaining mechanism having an engaging member and a plurality of engaging portions operable to stepwisely and elastically engage with the engaging member, the mechanism maintaining a position of the winding member; and a release mechanism for releasing the position-maintaining condition of the winding member by the position-maintaining mechanism by releasing the engagement between the engaging member and the one engaging portion and for effecting a change-speed operation by causing the winding member to pivot in the cable-rewinding direction with the cable-rewinding urging force.

REFERENCES:
patent: 4699018 (1987-10-01), Tagawa
patent: 4768395 (1988-09-01), Tagawa
patent: 4876913 (1989-10-01), Romano
patent: 4885951 (1989-12-01), Desenclos et al.
patent: 4920818 (1990-05-01), Nagaano
patent: 4930368 (1990-06-01), Nagano

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