To improve energy absorption performance per unit mass of an axial crush impact absorption member.SOLUTION: An axial crush impact absorption member 10 comprises a plurality of ridge lines 1a extending along an axial direction, and wall parts 1b between and among the plurality of ridge lines 1a. A closed cross section is formed of the ridge lines and the wall parts. Each of the plurality of wall parts 1b includes a plurality of heavy-thickness crosspiece parts 12 which are separated in the axial direction, and thin-thickness wall parts 13 between and among the crosspiece parts 12. In each of the plurality of ridge lines 1a, a column part 11 thicker than the thin-thickness wall parts 13 is formed. The shortest distance L2 in the axial direction between the two crosspiece parts 12 which adjoin each other in the axial direction is longer than a maximum width L1 of the crosspiece part 12 in the axial direction (L1
【課題】軸圧潰衝撃吸収部材の単位質量当たりのエネルギー吸収性能を向上する。【解決手段】軸圧潰衝撃吸収部材10は、軸方向に沿って延びる複数の稜線1aと、複数の稜線1aの間の壁部1bとを備える。稜線と壁部により閉断面が形成される。複数の壁部1bの各々は、軸方向に離間した複数の厚肉の桟部12と、桟部12の間における薄肉壁部13とを含む。複数の稜線1aの各々において、薄肉壁部13よりも厚い柱部11が形成される。桟部12の軸方向の最大幅L1よりも、軸方向に隣り合う2つの桟部12の間の軸方向の最短距離L2の方が長い(L1<L2)。【選択図】図1
AXIAL CRUSH IMPACT ABSORPTION MEMBER
軸圧潰衝撃吸収部材
2024-10-18
Patent
Electronic Resource
Japanese
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