Brakes for bicycles and other chain driven mechanisms
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 29, 2000
Grant Date -
N/A
app pub date -
Nov 13, 1997
filing date -
Mar 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides a crank assembly for a chain driven mechanism such as a bicycle. The crank assembly has at one end of a crank arm, a journal adapted for engagement with an axle. The axle has at its other end a connection. The one end of the crank arm has mounted thereon a housing via a unidirectional variable clutch, the housing having an extension to which, in use, an activation means such as a brake cable or cables is/are attached. The arrangement is such that during normal forward rotation the crank arm moves normally and the housing is stationary relative thereto, while during back or reverse movement of the crank arm the housing moves to activate the brake cable or cable means.
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