Patent ID: 9266484
Filing Date: 2016-02-23
CPC Classification: B60R

Claim Text:
1. A crush box comprising a tubular body having a polygonal section and being disposed between an end portion of a bumper beam and a vehicle body in such a posture that an axial direction of the tubular body generally coincides with a longitudinal direction of a vehicle, wherein the tubular body has an outer side wall and an inner side wall that is located inward of the outer side wail in a vehicle-width direction, wherein both the outer side wall and the inner side wall are inclined to the axial direction of the tubular body so as to be positioned outward in the vehicle-width direction as the tubular body extends from the vehicle body toward the bumper beam in a planar view as viewed from an up-down direction of the crush box, wherein the tubular body is crushed into a bellows shape to absorb impact energy as a compressive load is applied to the tubular body from the bumper beam in the axial direction of the tubular body, and wherein an angle of inclination of the outer side wall is greater than an angle of inclination of the inner side wall.