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US 11,590,797 B2Granted
Freewheel assembly switchable between fixed-gear and freewheel modes
OwnerNicholas Redmond Engelinventor
Life of this patent
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Abstract
A bicycle freewheel assembly is provided which is capable of being readily and reversibly switched from fixed-gear to freewheel operation, without the necessity of removing the wheel from the bicycle. The freewheel assembly is mountable on pre-existing freewheel hubs.
Claims9
A freewheel assembly for a bicycle, comprising:
- (a) a sprocket;
- and
- (b) a drive ring that is mountable on a freewheel hub;
- wherein the sprocket and drive ring are in a freewheeling relationship, where the sprocket freely rotates counterclockwise relative to the drive ring, but is rotationally locked to the drive ring when rotating clockwise, and
- a reversible non-frictional positive locking mechanism, which, when engaged, rotationally locks the sprocket to the drive ring so as to prevent freewheeling, thereby converting the assembly to fixed-gear operation.
2 more elements
Dependencies are inferred from the claim text.