Shock-absorbing device and seat comprising such a device

摘要

The device has a gap with a central housing in which an absorbing shaft (17) and upper and lower fracture imitation zones are placed. A bridge part is thin at a level of one of fracture imitation zones. An aluminum plate (2) comprises a braking cavity with a central cavity and a deformable zone elongated along curve form reference axis. Width of the deformable zone is lower than diameter of the shaft, where the zone receives the shaft when the bridge part is broken. An independent claim is also included for seat for a vehicle comprising a fixed structure.