Headrest and backrest associating device for motor vehicle seat, has rod with cavity having depth and design so as to permit simultaneous engagement of projection in cavity and reinforcement in locking notch when rod is in locking position

摘要

The device (1) has a plastic slide (4) including a support projection (6) against a rod (2). The projection radially protrudes from a metallic reinforcement (5) towards interior so as to maintain the reinforcement remote from the rod in sliding position. The rod includes a detection cavity (8) corresponding to a locking notch (3) of the rod. The cavity has a depth and a design so as to permit a simultaneous engagement of the projection in the cavity and the reinforcement in the notch when the rod is in a locking position.