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US 2007/0178998 A1Published application
Bicycle front derailleur
AssigneeShimano Inc.
InventorToshio Tetsuka
Life of this patent
Estimating the term…
Abstract
A bicycle front derailleur includes a base member, a movable member and a linkage assembly. The base member is configured to be fixedly coupled to a bicycle frame. The movable member has a chain guide portion. The linkage assembly is coupled between the base member and the movable member to move the chain guide portion between a retracted position and an extended position. The chain guide portion includes a chain guide element defining a chain path and a movable plate arranged to pivot about a pivot axis relative to the chain guide element in a see-saw movement.
Claims16
A bicycle front derailleur comprising:
- a base member configured to be fixedly coupled to a bicycle frame;
- a movable member having a chain guide portion;
- and
- a linkage assembly coupled between the base member and the movable member to move the chain guide portion between a retracted position and an extended position,
- the chain guide portion including a chain guide element defining a chain path and a movable plate arranged to pivot about a pivot axis relative to the chain guide element in a see-saw movement.
2 more elements
Dependencies are inferred from the claim text.