Length-adjustment device for vehicle seat has upper rail moving along lower rail that can be locked in position and additional lock with catch bolt and opening to lock device in event of crash

摘要

The device (1) has at least one lower rail (5) and at least one upper (4) rail, which moves along the lower rail and can be locked in position. An additional lock (7) has at least one catch bolt (15) and at least one catch opening (8'), which locks the device in the event of a crash. Preferably, the catch bolt is arranged in a part (9,11) of the lower rail and the catch opening is arranged in the upper rail. An Independent claim is included for a vehicle seat incorporating the device.