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1. (WO2016060255) IMPACT ABSORPTION MEMBER

Pub. No.:    WO/2016/060255    International Application No.:    PCT/JP2015/079348
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Sat Oct 17 01:59:59 CEST 2015
IPC: F16F 7/12
B60R 19/34
B62D 21/15
F16F 7/00
Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION
新日鐵住金株式会社
Inventors: SAWA, Yasunori
澤 靖典
NAKAZAWA, Yoshiaki
中澤 嘉明
HAMADA, Koichi
▲浜▼田 幸一
ITO, Yasunori
伊藤 泰則
YOSHIDA, Hiroshi
吉田 博司
Title: IMPACT ABSORPTION MEMBER
Abstract:
An impact absorption member 10 is configured so that: energy absorption by the impact absorption member 10 is ensured; the impact absorption member 10 is lightweight; and the impact absorption member 10 absorbs an axially applied impact load by periodic buckling thereof. The impact absorption member 10 is provided with: a body 20 consisting of a metallic plate and having a polygonal shape in a cross-section taken perpendicularly to the axial direction; and an intermediate plate 30 consisting of a metallic plate and provided in the axial direction within a hollow space within the body. The polygonal shape of the body 20 has a pair of facing long sides (20a, 20b). The intermediate plate 30 is joined to each of the long sides (20a, 20b) of the polygonal shape of the body 20. The plate thickness t1 (mm) of the body 20 and the plate thickness t2 (mm) of the intermediate plate 30 satisfy the relationship of 1.3×t1≤t2.