Head rest for automotive vehicle seat movable forwards or upwards in the event of a collision

摘要

The head-rest (1) has an inner structure (4) with a bottom and a top articulated with respect to an armature (2) and a deployable unit` (7) i.e. piston, end along transversal axles (5, 6), respectively. A pyrotechnic deployment system connected to an impact detection system activates the unit. The axle (5) is movably mounted along a vertical direction between low and high positions respectively corresponding to retracted and deployed positions of the unit such that the structure is subjected to a simultaneous rotation and translation movement towards front and top in case of an impact.