Driving device of a toothed wheel by way of a self-aligning pinion.

摘要

Device for driving a ring gear (2) by way of a floating drive pinion (1) mounted inside a carriage (3) comprising rollers (4) which roll on internal tracks (2a) concentric with the teeth of the ring gear and hold the carriage (3) radially on the said ring gear at the operating spacing by a resilient member, characterised in that the drive pinion (1) and the ring gear (2) have teeth of the "set back" type, such that the maximum diameter of the profiles in contact with the ring gear is smaller than the reference operating diameter of the said ring gear, which produces, in operation, a single direction of sliding on the teeth. <IMAGE>