Patent ID: 9381974
Filing Date: 2016-07-05
CPC Classification: B62M,Y10T

Claim Text:
1. An electric derailleur motor unit configured to be attached to a derailleur comprising: a base member; a motor mounted to the base member, the motor having a motor shaft rotatable about a first rotational axis; an output shaft rotatable about a second rotational axis; and a drive train operatively disposed between the motor shaft of the motor and the output shaft, the drive train including an anti-backdriving device,the anti-backdriving device being configured to transmit rotation of the motor shaft of the motor in both rotational directions about the first rotational axis to the output shaft, and the anti-backdriving device being further configured to prevent the output shaft from rotating in both rotational directions about the second rotational axis while the output shaft receives an external rotational torque from outside of the electric derailleur motor unit, the drive train further including a second reduction gear train that is operatively coupled between the anti-backdriving device and the output shaft.