Index shifter for bicycle transmissions

Details Index shifter for bicycle transmissions Index shifter for bicycle transmissions

1997-09-10

2000-03-28

Dickson, Paul N.

Land vehicles

Wheeled

Occupant propelled type

74489, 7447314, B62M 102

Patent

active

060421339

ABSTRACT:
An index shifter for a bicycle transmission, which index shifter is mounted on a part of a bicycle and has a casing, a locking element with notches which is connected to a rotary hand grip, and a winding drum for actuating a cable pull. The casing has a ring-shaped recess disposed therein, in which recess a detent spring is arranged. The detent spring is braced by two feet against the casing and has a lug which engages with the locking ring. Inside the casing is a casing projection with which one foot of the detent spring can be fixed to achieve a small amount of shift play. This permits small amounts of shift play, in particular for shifting hub gears on bicycles.

REFERENCES:
patent: 5102372 (1992-04-01), Patterson et al.
patent: 5197927 (1993-03-01), Patterson et al.
patent: 5524501 (1996-06-01), Patterson et al.
patent: 5588925 (1996-12-01), Arbeiter et al.
patent: 5615580 (1997-04-01), Chen et al.
patent: 5662000 (1997-09-01), Patterson et al.
patent: 5666859 (1997-09-01), Arbeiter et al.
patent: 5676020 (1997-10-01), Jordan et al.
patent: 5799541 (1998-09-01), Arbeiter
patent: 5862709 (1999-01-01), Kageyama

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