| 摘要 |
<p>An impact energy absorbing member having excellent characteristics produced by injection molding of a thermoplastic resin through simplified steps, and using any of the following structures as a destruction mode stabilizing guide: 1) a cylindrical body, at least one of the directions of orientation on the inside and outside thereof being different from the axial direction of the cylindrical body; 2) a laminate of cylindrical bodies, with the directions of orientation on the planes where adjacent surfaces contact kept mutually different; and 3) a cylindrical body split at at least one plane crossing the center axis thereof, with the split surfaces mutually fit or oppose at this splitting plane; whereby stable impact absorption is possible by progressive destruction. <IMAGE></p> |
