| CPC B62M 9/126 (2013.01) [B62M 9/1242 (2013.01); B62M 9/16 (2013.01); B62M 2009/12406 (2013.01)] | 18 Claims |
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1. A bicycle rear derailleur comprising:
a base member mountable to a bicycle frame;
a movable member movably coupled to the base member;
a pivot member rotatably coupled to the movable member, the pivot member having an outer annular surface;
a chain guide assembly rotatably connected to the movable member via the pivot member, the chain guide assembly being non-rotatably coupled to the pivot member;
a biasing device configured to bias the chain guide assembly in a first rotational direction relative to the movable member; and
a damper device disposed within the movable member, the damper device operable to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction relative to the movable member, the second rotational direction being opposite the first rotational direction, the damper device including:
a friction device including a friction member, the friction member having an inner friction surface and an outer surface, wherein a first portion of the inner friction surface is biased against and in frictional engagement with the outer annular surface of the pivot member, and a second portion of the inner friction surface is biased against and in frictional engagement with the movable member,
wherein the first portion of the inner friction surface contacts the outer annular surface of the pivot member, and the second portion of the inner friction surface contacts the movable member, and
wherein the friction device is disposed within the movable member at a distance relative to the biasing device in an axial direction along the pivot member, such that the friction device and the biasing device do not overlap in the axial direction.
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