Patent ID: 7186197

Claim:
Actuator comprising: two drive motors ( 14 A, 14 B), an output member ( 22 ), a differential reduction gear ( 16 ) having straight-cut teeth which is interposed between the two motors ( 14 A, 14 B) and the output member ( 22 ), the differential reduction gear ( 16 ) comprising: two sun pinions ( 30 A, 70 A, 30 B, 70 B), each sun pinion being rotatably coupled to a drive motor ( 14 A, 14 B), an output shaft ( 40 ), about which the axes of the sun pinions ( 30 A, 70 A, 30 B, 70 B) are rotatably mounted, a planet-carrying drum ( 60 ) which is connected to the output shaft ( 40 ) in order to be rotatably driven, at least one pair of planet pinions ( 64 A, 64 B) which are carried by the planet-carrying drum ( 60 ) and which are mounted so as to rotate about themselves, each planet pinion ( 64 A, 64 B) being engaged with a sun pinion ( 30 A, 70 A, 30 B, 70 B), the associated planet pinions ( 64 A, 64 B) of the same pair being engaged with each other, a torque limiter ( 18 ) which is interposed between the two motors ( 14 A, 14 B) and the output member ( 22 ), characterised in that the torque limiter ( 18 ) brings about the connection between the planet-carrying drum ( 60 ) and the output shaft ( 40 ), which torque limiter ( 18 ) is arranged between the two sun pinions ( 30 A, 70 A, 30 B, 70 B) on the axis of the output shaft ( 40 ).