Mechanical absorbing systems for active hood hinges.

摘要

The device has a shock-absorbing device employed when a pedestrian hits the bonnet (11) which is raised, so that an assembly consisting of the bonnet, a raising mechanism and a piston (17), moves under the effect of the impact. A hollow body (16) has small-diameter upstream and larger-diameter downstream parts (18, 19). The piston has a peripheral groove (23) partially delimited by an internal wall of the part (18). The raising mechanism includes a link rod and a raising lug. The small-diameter upstream and larger-diameter downstream parts (18, 19) are connected by a divergent passage. The groove houses a pre-stressed unit (24) supported against the wall.