Patent ID: 9227694
Filing Date: 2016-01-05
CPC Classification: B62M,Y10T

Claim Text:
1. A bicycle drive unit comprising: a crank axle rotatable about a first rotational axis; a motor having an output shaft rotatable about a second rotational axis; an output member rotatable about the first rotational axis in a first rotational direction as the crank axle rotates about the first rotational axis in the first rotational direction, and rotatable about the first rotational axis in a second rotational direction as the crank axle rotates about the first rotational axis in the second rotational direction, the second rotational direction being opposite the first rotational direction, and a torque combining mechanism operatively coupling the output shaft of the motor to the output member to transmit rotation of the output shaft of the motor to the output member, the torque combining mechanism being configured to operatively separate the output shaft of the motor from the output member for preventing rotation of the crank axle from being transmitted to the output shaft of the motor as the crank axle rotates about the first rotational axis in the second rotational direction.