Automobile passenger seat with headrest coupled to impact device within backrest for active movement of headrest in rear crash situation

摘要

The automobile passenger seat has a headrest (2) secured to the transverse element (4) of the seat backrest frame via axially sliding and pivoted supports, used for height adjustment of the headrest, which are coupled to an impact device (11) between the opposite side elements (3) of the backrest frame, for active movement of the headrest in a rear crash situation. A U-shaped headrest support frame (12) is displaced along guides (17) provided by the side elements of the backrest frame and coupled via 2-armed lever mechanisms (13,14) to the impact device.