Patent ID: 7950511

Claim:
Device for a seat height adjustment mechanism of a vehicle seat, wherein this device comprises a drive element which can be driven in opposite directions of rotation, a driven element which can be driven in opposite directions of rotation by means of this drive element, two unilaterally acting freewheels, each having teeth, wherein the driven element can be driven by the drive element optionally via the first or the second of these two freewheels, and wherein the locked direction of the first of these freewheels corresponds to the free running direction of the second of these freewheels, and wherein the free running direction of the first of these freewheels corresponds to the locked direction of the second of these freewheels, an unlocking device for optionally bringing in each case one of the freewheels out of engagement, wherein a neutral position is assigned to the drive element, and wherein this neutral position is a predefined rotation position of the drive element in which both the first and the second freewheel is in an engaged position and contact an inner toothing of the driven element with their teeth, characterised in that a restoring device is provided for the drive element and acts in the direction of the neutral position when the drive element is deflected, and in that a first stop is provided for limiting the pivotability of the drive element in its first direction of rotation and a second stop is provided for limiting the pivotability of the drive element in its second direction of rotation, which is opposite to the first and an arresting device is provided for acting on an outer toothing of the driven element.