Head-rest assembly for seat of motor vehicle, has activating button including support tongue interposed between locking unit and clevis pin along transversal direction to authorize locking unit contact with shoulder of notches of clevis pin

摘要

The assembly (1) has an activating button (26) distinct from a locking unit (18) and arranged in a housing (16) of a sheath (8). The button is displaced by a user along a transversal direction (Y) for bring out the locking unit in a retracted position. The button has a support tongue (28) interposed between the locking unit and a clevis pin (4) along the transversal direction to authorize the locking unit contact with a shoulder (5) of notches (6) of the clevis pin. The locking unit and a pressing unit are integrated in a unique spring element.