Two-side adjustment drive mechanism

摘要

A drive acting on both sides produces a rotary movement, more particularly a rotary movement for a manual height or incline adjustment of a vehicle seat. The drive lever is coupled to locking means which can be brought into engagement with teeth mounted on the circumference of a drive wheel. The locking means have a one-piece tilt element which tilts to and fro between two end positions in dependence on the relevant drive direction wherein in each end position a locking of the tilt element takes place with the teeth of the drive wheel. The invention provides a drive acting on both sides to produce a rotary movement which has a small number of individual parts, is simple to fit and is characterized by a compact structure.