Patent ID: 9353804
Filing Date: 2016-05-31
CPC Classification: F16D,F16H,H02K

Claim Text:
1. A harmonic drive assembly with selective disconnect comprising: a motor with a motor drive shaft; a harmonic drive operatively coupled to one end of the motor drive shaft; a wave generator of the harmonic drive operatively coupled to the motor drive shaft and a flex gear of the harmonic drive; a ring gear of the harmonic drive operatively coupled to the flex gear with a plurality of ring gear teeth configured to mesh with a plurality of flex gear teeth; an output shaft operatively coupled to the harmonic drive; and a retracting mechanism configured to selectively retract the motor drive shaft and the wave generator axially to decouple the motor drive shaft from the harmonic drive and to decouple the wave generator from the flex gear, wherein a clearance between the ring gear teeth and the flex gear teeth is established upon retraction of the motor drive shaft and the wave generator.