Spiral rotor chain shifting system
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United States of America Patent
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-
Apr 24, 2012
Grant Date -
Apr 7, 2011
app pub date -
Dec 30, 2009
filing date -
Dec 31, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism for shifting a chain from one sprocket to another sprocket is disclosed herein. The mechanism preferably includes rotor assembly, a control element and a chain tensioner. The rotor assembly preferably has a conical shaped body with a chain slot having clearance windows and cam surfaces. The control element rotates the rotor assembly to shift the chain from one of the sprockets to another sprocket without lateral movement of the rotor assembly.
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