| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shock absorption member that stably performs bellows deformation and has high energy absorption efficiency. <P>SOLUTION: This shock absorption member 1 is a cylindrical shock absorption member that, upon reception of an axial compressive load, absorbs impact energy by plastically deforming in a bellows form. The sidewall is formed of a flat surface that does not have a bead for inducing the bellows deformation. The cross-sectional shape orthogonal to the axial direction is a closed cross section having a substantially cross shape having 12 apexes. An angle α formed by straight lines that connect the apexes of both ends of the oblique side of an octagon formed by interconnecting, with straight lines, eight apexes of the 12 apexes and an apex between them is set to 90°≤α≤150°. <P>COPYRIGHT: (C)2013,JPO&INPIT |
