Shift control device for bicycle

Details Shift control device for bicycle Shift control device for bicycle

2009-05-21

2011-10-11

Johnson, Vicky (Department: 3656)

Machine element or mechanism

Control lever and linkage systems

Hand operated

Reexamination Certificate

active

08033198

ABSTRACT:
A shift control device includes a shift-up control apparatus, a shift-down control apparatus and a transmission control assembly. The shift-up control apparatus includes an operable shift-up controller, a first link member connected with the shift-up controller and a first pawl pivotally mounted on the first link member. The shift-down control apparatus includes an operable shift-down controller and a second link member connected with the shift-down controller. The second link member includes first and second actuating members. The transmission control assembly includes a locking member, a housing assembly and first and second pawls. The locking member is moveable in the housing at various positions for various bicycle speed transmissions and includes first and second engaging sections. The first engaging section is selectively engaged by the first pawl of the shift-up control apparatus and the second engaging section is selectively engaged by the first and second pawls of the transmission control assembly.

REFERENCES:
patent: 5203213 (1993-04-01), Nagano
patent: 5307706 (1994-05-01), Nagano
patent: 2002/0144566 (2002-10-01), Liu et al.

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