US Patent 11401998 Actuator

An actuator is provided, in which second support shafts are protruded to an output shaft side in an axial direction of a second planetary carrier. A power transmission member having convex portions which are protruded radially outward and receive rotation forces from the second support shafts are arranged on a second planetary carrier side of the output shaft in the axial direction. An elastic member is arranged between the second support shafts and the convex portions in a rotation direction of the output shaft. Therefore, the rotation force of the second planetary carrier due to rotation drive of an electric motor is transmitted from the second support shafts to the convex portions of the power transmission member via the elastic member.