Abstract: Divided vehicle seat backrest includes at least a first backrest part and a second backrest part that are rotatably supported on a center bracket via an inner bearing pin. The inner bearing pin may be accommodated in a recess in the second backrest part. The inner bearing pin may be fastened to the first backrest part, and a positive fit is formed between the inner bearing pin and the second backrest part. The supporting of the bearing pin on the center bracket and the supporting of the second backrest part on the bearing may pin preferably occur without supplementary parts or securing elements. For installation, the bearing pin may be initially placed through the center bracket, and the second backrest part may thus be subsequently mounted by placement, insertion, and pivoting on the inner bearing pin.

Abstract: Divided vehicle seat backrest includes at least a first backrest part and a second backrest part that are rotatably supported on a center bracket via an inner bearing pin. The inner bearing pin may be accommodated in a recess in the second backrest part. The inner bearing pin may be fastened to the first backrest part, and a positive fit is formed between the inner bearing pin and the second backrest part. The supporting of the bearing pin on the center bracket and the supporting of the second backrest part on the bearing may pin preferably occur without supplementary parts or securing elements. For installation, the bearing pin may be initially placed through the center bracket, and the second backrest part may thus be subsequently mounted by placement, insertion, and pivoting on the inner bearing pin.

Abstract: A hollow plastic section, includes a frame section defining a longitudinal axis and having an interior subdivided in several inner chambers by a plurality of partition walls extending in a direction of the longitudinal axis, Received in the interior is a plurality of stiffening elements arranged separate from one another, without interconnection, for realizing a reinforcement of the frame section. The stiffening elements may be made of metal or may be configured as bands or strips of fiber-reinforced plastic.

Abstract: A crosspiece for the frame of a vehicle seat that includes a supporting surface for the occupant. A crosspiece is formed as an element that shortens by a preset amount along its longitudinal dimension when a load is imposed up to a threshold value. The crosspiece includes an intentional bending point that bends perpendicular to the longitudinal direction when the threshold value is exceeded so that the crosspiece does not move in the direction of the supporting surface.