Double-sided acting drive e.g. for adjusting motor vehicle seat, has drive wheel provided with internal toothing

摘要

A double-sided acting drive has a drive wheel provided with inner toothing with a drive rocker linked to a swivelling drive lever. With deflection of the drive lever from the central position by a frictional element coupled to the drive rocker, it is swiveled into the internal toothing of the drive wheel which is carried in the direction of deflection of the drive lever and with return of the drive lever to the central position, is swiveled out of the internal toothing of the drive wheel. The drive rocker (4) acts on a bias spring, mainly perpendicular to its direction of movement.