Drive device for setting drive has intermediate gear composed of pinion and gear wheel

摘要

The drive device driving a movable element has a transmission including a motor pinion, an intermediate wheel and a partly toothed crown. The intermediate gear is composed of a pinion (44) and a gear wheel (46). The pinion and the gear wheel are connected via a ratchet (50) so that the pinion, unable to rotate relative to the ratchet, can turn like a pawl relative to the gear wheel.