Chain switching device for bicycles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Feb 17, 1998
filing date -
Feb 17, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
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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