Chain switching device for bicycles

Details Chain switching device for bicycles Chain switching device for bicycles

1998-02-17

2000-01-04

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Hand operated

474 80, 474 82, F16H 900

Patent

active

06009771&

ABSTRACT:
A device for switching a chain on different sprockets of a pedal bearing mounted to a seat tube of a frame of a bicycle. The chain switching device includes a cage which can be economically manufactured in a plurality of constructions and readily mounted on different bicycle frames with different angles between a seat tube and a chain brace in order to achieve optimum operating angles with appropriately modified cages. The different cage constructions are manufactured from a single sheet metal blank and have brackets arranged at different positions and of different lengths which are formed by appropriately positioning their bending edges to attach the cage to a parallel guide device.

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patent: 5246405 (1993-09-01), Nagano
patent: 5779581 (1998-07-01), Fujii
patent: 5846148 (1998-12-01), Fujii

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