Patent ID: 7438359

Claim:
A longitudinal adjuster that is for a vehicle seat and is capable of being responsive to predetermined pivoting of a back rest of the vehicle seat, the longitudinal adjuster comprising: a first seat rail; a second seat rail, wherein the first and second seat rails are mounted so that the first seat rail can be moved longitudinally relative to the second seat rail; a memory device mounted for longitudinally moving with the first seat rail relative to the second seat rail, wherein the memory device interacts with the second seat rail for remembering a longitudinal position of the first seat rail with respect to the second seat rail so that the first seat rail can be longitudinally moved back to the remembered longitudinal position after the first seat rail has been longitudinally moved out of the remembered longitudinal position, wherein the first seat rail having been longitudinally moved out of the remembered longitudinal position is at least partially in response to the predetermined pivoting of the back rest of the vehicle seat, and wherein the memory device includes a displacement measuring device that is rotatable about a rotational axis and that can be brought into operative association with the second seat rail so that the displacement measuring device rotates about the rotational axis in response to the first seat rail being longitudinally moved relative to the second seat rail, a control spring, at least one locking element, a control signal generator mounted for moving relative to the displacement measuring device, with the moving of the control signal generator relative to the displacement measuring device corresponding to how far the first seat rail has longitudinally moved relative to the remembered longitudinal position, and the control signal generator experiences, at the latest when the first seat rail has been longitudinally moved back to the remembered longitudinal position, a control torque, and then actuates, by way of the control spring, the locking element so that the locking element interacts with the second seat rail, and a control bearing arranged between the control signal generator and the control spring, the control bearing guiding the control signal generator along the rotational axis of the displacement measuring device, and the control bearing supporting the control spring.