PROBLEM TO BE SOLVED: To provide an impact energy absorption member which can prevent a bounce of an initial load and a variation of a deformation mode, can secure an energy absorption stroke, and can obtain a stable energy absorption function.SOLUTION: An impact energy absorption member has a one-end side 3b intersecting with a load input direction F, and the other end side 3c substantially parallel with the one-end side 3b, and comprises a plurality of continuous plate-shaped absorption bodies 3, 3 .. via boundary lines B extending substantially in parallel with the load input direction. In the plate-shaped absorption body 3, there are formed a plurality of bead parts 4 at intervals in boundary line directions so that the bead parts have prescribed inclination angles θ with respect to the boundary lines B, and are formed into V-shapes with the boundary lines B as symmetric axes. The V-shaped bead part 4 is constituted of the longest bead part 4a at which an apex of a V-shape contacts with the one-end side 3b or the other end side 3c of the plate-shaped absorption body 3, and a plurality of gradually-shortened bead parts 4b to 4e whose bead lengths gradually become short as progressing toward the other end side 3c side or the one-end side 3b side from the longest bead part 4a.
【課題】初期荷重の跳ね上がりや変形モードばらつきを防止でき、かつエネルギー吸収ストロークを確保することができ、ひいては安定したエネルギー吸収機能を得ることができる衝撃エネルギー吸収部材を提供する。【解決手段】荷重入力方向Fと交差する一端辺3b及び該一端辺3bと略平行な他端辺3cを有し、前記荷重入力方向と略平行に延びる境界線Bを介して連続する複数の板状吸収体3,3・・を備え、該板状吸収体3には、複数のビード部4が、前記境界線Bに対して所定の傾斜角度θを有し、かつ該境界線Bを対称軸とするV字形状をなすように、さらに該境界線方向に間隔をあけて形成され、前記V字形状のビード部4は、前記板状吸収体3の一端辺3b又は他端辺3cにV字形状の頂点が接する最長ビード部4aと、該最長ビード部4aから他端辺3c又は一端辺3b側にいくほどビード長さが順次短くなる複数の漸減ビード部4b〜4eとにより構成されている。【選択図】図3
IMPACT ENERGY ABSORPTION MEMBER
衝撃エネルギー吸収部材
2015-07-06
Patent
Elektronische Ressource
Japanisch