Patent ID: 7484796

Claim:
A head rest arrangement for a motor vehicle seat comprising: a backrest frame for a backrest; a head rest that is fixable in at least one useful position on the backrest frame and which has a head rest body for supporting a head of a vehicle occupant; a displacement device to shift the head rest in a crash situation in order to move the head rest body relative to the backrest frame into a predeterminable position which is different from the useful position; a locking device which counteracts displacement of the head rest by the displacement device and which is releasable in a crash situation; a control device to keep the locking device in an unlocked state so long as the head rest is shifted out from the useful position; toothed regions serving as a resetting lock configured to prevent immediate resetting movement of the headrest from said predeterminable position produced through shifting the headrest in a crash situation; wherein the control device comprises at least one stop wherein when the locking device is unlocked the stop acts on a component part of the locking device so that the locking device is held in a state defined by the interaction of the stop with the component part; and wherein the stop continues to act on the component part while the headrest body is moved back into a useful position after the toothed regions have been brought out of engagement.