DEVICE FOR ENERGY ABSORPTION UPON IMPACT FOR AUTOMOTIVE VEHICLE SEAT, SEAT AND AUTOMOTIVE VEHICLE COMPRISING THE DEVICE

摘要

Device (1) for energy absorption in particular for an automotive vehicle seat (10) upon impact, said device comprising a first element(2) substantially in the form of a plate with a hole(12) and a second element (4) inserted in the hole (12), said first element(2) comprising a series of cutouts (14a to 14c) that are successive along a deformation direction (X) and define a series of yokes (16a to 16c) between each other extending along a direction of elongation (Y) transversal to the direction of deformation (X), said yokes (16a to 16c) having each a length (L_a, L_b, L_c) along the direction of elongation (X), said length (L_a, L_b, L_c) increases strictly from one yoke to the next according to the distance of the yokes(16a to 16c) in relation to the second element(4) and the yokes (16a to 16c) having an overall concavity turned towards the second element (4).