Bicycle rear derailleur with a motion resisting structure
AssigneeShimano Inc.
InventorsTakeshi Takachi, Atsushi Iizuka, Nobukatsu Hara
Life of this patent
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Abstract
A bicycle derailleur comprises a base member adapted to be mounted to a bicycle, a movable member movably coupled to the base member, and a chain guide coupled to the movable member. The chain guide is coupled for rotation around a rotational axis (X), and a biasing element biases the chain guide in a selected rotational direction. A resistance applying unit applies a resistance to rotational movement of the chain guide in a direction opposite the selected rotational direction, and an adjusting unit adjusts an amount of resistance applied by the resistance applying unit.
Claims30
A bicycle derailleur comprising:
- a base member adapted to be mounted to a bicycle,
- a movable member movably coupled to the base member;
- a chain guide coupled to the movable member;
- wherein the chain guide is coupled for rotation around a rotational axis (X);
- a biasing element that biases the chain guide in a selected rotational direction around the rotational axis (X);
- a resistance applying unit that applies a resistance to rotational movement of the chain guide in a direction opposite the selected rotational direction;
- and
- an adjusting unit that adjusts an amount of resistance applied by the resistance applying unit in the direction opposite the selected rotational direction, wherein the adjusting unit can be accessed without removing the chain guide from the movable member so that the amount of resistance applied by the resistance applying unit can be adjusted by a person who manipulates the adjusting unit, and wherein the amount of resistance applied by the resistance applying unit can be adjusted by a person who manipulates the adjusting unit without manipulating the biasing element to access the adjusting unit.
Dependencies are inferred from the claim text.