Antriebseinheit für Verstelleinrichtungen in Kraftfahrzeugen

摘要

The drive unit has two coaxially mounted gear elements (20,30) behind each other and coupled by at least one pre-tensioned spring element.(40). The spring element has two ends supporting it on one of the gear elements. At least one of the ends is in contact with the other gear element. The pre-tensioning force of the spring element is greater than, or equal to, the adjusting force produced in the drive unit's normal operation The rotational angle of the spring element is restricted by a stop. The gear elements have support elements (23,25;33,35).