Patent ID: 7963871
Filing Date: 2011-06-21
Classification: B62M

Abstract:
1. A bicycle front derailleur comprising: a base member configured to be coupled to a portion of a bicycle; a first link member having a first end movably coupled to the base member; a second link member having a first end movably coupled to the base member, the first and second link members having second ends that are spaced from the first ends of the first and second link members, with the second ends of the first and second link members being movable between a retracted position and an extended position relative to the base member; an angle adjustable plate member coupled to the second ends of the first and second link members for movement therewith between the retracted and extended positions; a chain cage pivotally mounted to the angle adjustable plate member by a pivot pin to move about a connection point which directly connects the chain cage to the angle adjustable plate member; and a first adjuster operatively arranged between the angle adjustable plate member and the chain cage at a location that is spaced apart from the connection point, with the first adjuster being movable to selectively adjust an angular orientation of the chain cage relative to the angle adjustable plate member by movement of the first adjuster relative to the angle adjustable plate member, with the angular orientation of the chain cage relative to the angle adjustable plate member being adjusted according to an amount of the movement of the first adjuster relative to the angle adjustable plate member, wherein the first adjuster is coupled between the adjustable plate member and the chain cage to selectively adjust the angular orientation of the chain cage relative to the angle adjustable plate member in a first direction by pivoting the chain cage about the pivot pin.