CRASH BOX FOR VEHICLE AND BUMPER DEVICE FOR VEHICLE AND IMPACT ABSORPTION STRUCTURE FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a crash box for a vehicle capable of sufficiently performing weight saving while ensuring excellent impact absorption performance, and easily tuning an impact absorption characteristic.SOLUTION: A cylindrical resin molding 10 includes a honeycomb structure in which a plurality of cylindrical cells 12 with the area of a cross section perpendicular to a hexagonal axis gradually increasing toward one side in an axial direction share at least one side 14 and are arranged mutually adjacently, and a through hole 20 for adjusting strength to plastic deformation in an axial direction is formed in the cylindrical resin molding 10.