Patent ID: 8602929
Filing Date: 2013-12-10
Classification: B62M,Y10T

Abstract:
1. A bicycle derailleur apparatus comprising: a base member for coupling to a bicycle frame; a movable member coupled for movement relative to the base member; a chain guide coupled to the movable member for moving a chain from an origin sprocket to a destination sprocket in response to movement of the movable member; a biasing device that provides a biasing force to the chain guide for tensioning the chain; and a movement resisting device with a control element for the application of a signal that causes the movement resisting device to selectively apply and remove resistance to movement of the chain guide other than resistance provided by the biasing device; wherein the movement resisting device is operable to remove resistance to movement of the chain guide other than resistance provided by the biasing device when the chain guide moves the chain from the origin sprocket to the destination sprocket.