Abstract: The present disclosure relates to an adjustment device for a head rest of a vehicle seat, including a locking device for adjusting a in relation to a back rest connection in a longitudinal direction and a vertical adjusting, where a locking device for locking the adjustment device is provided which comprises a release lever to be activated by the user which swivels a blocking element which in turn swivels a locking element.

Abstract: The present disclosure relates to an adjustment device for a head rest of a vehicle seat, including a locking device for adjusting a in relation to a back rest connection in a longitudinal direction and a vertical adjusting, where a locking device for locking the adjustment device is provided which comprises a release lever to be activated by the user which swivels a blocking element which in turn swivels a locking element.

Abstract: A height adjustment apparatus for a vehicle seat may include a pinion gear mounted in a side frame having a front portion and a rear portion are connected to a seat bracket by links; a rack gear engaged with a top end of the pinion gear and coupled with the seat bracket via an hinge, the rack gear moving according to driving of the pinion gear to raise and lower the side frame; and a play adjustment bracket for guiding up and down motion of the moving rack gear by providing repulsive force to a top portion of the rack gear, the play adjustment bracket being fixedly positioned by being fastened with a plurality of support pins provided in the pinion gear and the side frame.

Abstract: A height adjustment apparatus for a vehicle seat may include a pinion gear mounted in a side frame having a front portion and a rear portion are connected to a seat bracket by links; a rack gear engaged with a top end of the pinion gear and coupled with the seat bracket via an hinge, the rack gear moving according to driving of the pinion gear to raise and lower the side frame; and a play adjustment bracket for guiding up and down motion of the moving rack gear by providing repulsive force to a top portion of the rack gear, the play adjustment bracket being fixedly positioned by being fastened with a plurality of support pins provided in the pinion gear and the side frame.

Abstract: Inclination adjustment fitting for back rest of a vehicle seat includes first fitting part affixed to seat section, and second fitting part affixed to back rest, and which fitting parts are relatively pivotable around a pivoting axis. The two fitting parts include gearings forming components of a wobble gearing and roll on one another under influence of eccentric elements rotated around the pivoting axis. Eccentric element includes an eccentric ring, on which two wedge segments covering regions of eccentric ring lie in a mirror-image arrangement, and which are forced away from one another in the sense of an increase in eccentricity by a spring. Under excessive load, force transfer between fitting parts not accomplished via wedge segments; rather, a contact cam forming a single piece with eccentric ring projects into gap between end surfaces of wedge segments, transfers load via a contact surface from second fitting part first fitting part.

Abstract: Inclination adjustment fitting for back rest of a vehicle seat includes first fitting part affixed to seat section, and second fitting part affixed to back rest, and which fitting parts are relatively pivotable around a pivoting axis. The two fitting parts include gearings forming components of a wobble gearing and roll on one another under influence of eccentric elements rotated around the pivoting axis. Eccentric element includes an eccentric ring, on which two wedge segments covering regions of eccentric ring lie in a mirror-image arrangement, and which are forced away from one another in the sense of an increase in eccentricity by a spring. Under excessive load, force transfer between fitting parts not accomplished via wedge segments; rather, a contact cam forming a single piece with eccentric ring projects into gap between end surfaces of wedge segments, transfers load via a contact surface from second fitting part first fitting part.

Abstract: A system for adjusting the height of automobile vehicle seats having an arm of the mechanism which is hinged on a support around a hinge shaft. It is formed of two elements connected by a pivot and at least a connecting member with a predetermined rupture load. One of the elements includes a main set of teeth in the form of an arc of a circle centred on the hinge shaft and the other element includes a secondary set of teeth with same centre. A pinion located between the two sets of teeth meshes only with the main set of teeth when the two elements of the arm are securely attached. In case of an excessive load on the arm, the connection is broken and the secondary set of teeth meshes with the pinion subsequent to the relative pivoting of the two elements and prevents the rotation of the pinion.