To provide a columnar member which can absorb more energy during a collision without increasing its weight.SOLUTION: A columnar member 100 includes a hat shaped member 10 having: an upper wall 12 extending along a main axis; vertical walls 14, 16 extending along both side edge parts 12a, 12b of the upper wall 12; and flange parts 18, 20 extending along edges parts 14a, 16b, which are opposite to the upper wall 12, of the vertical walls 14, 16, the hat shaped member 10 having a cross section which is perpendicular to the main axis and presents a substantially hat shape. The columnar member 100 includes: a bending induction part 22 which is provided at the upper wall 12 and serves as a starting point of bending of the columnar member 100 when the columnar member 100 receives a compression load in a direction of the main axis; and bead parts 14b, 16b provided at positions corresponding to the bending induction part 22 in the direction of the main axis on the vertical walls 14, 16 and having a shape spreading to the bending induction part 22.SELECTED DRAWING: Figure 2
【課題】重量増を伴うことなく、より多くの衝突時のエネルギー吸収を行うことが可能な柱状部材を提供する。【解決手段】主軸線に沿って延設された上壁12と、上壁12の両側縁部12aに沿って延設された縦壁14と、縦壁14において上壁12とは反対側の縁部14a,16aに沿って延設されたフランジ部18,20と、を有し、主軸線に垂直な断面が略ハット形を呈するハット形状部材10を備える柱状部材100であって、上壁12に設けられ、主軸線の方向に圧縮負荷を受けた際に、柱状部材100の曲げの起点となる曲げ誘起部22と、縦壁14上において、主軸線の方向で曲げ誘起部22に対応する位置に設けられ、曲げ誘起部22に向けて広がる形状を有するビード部14b,16bと、を有する。【選択図】図2
COLUMNAR MEMBER
柱状部材
2021-11-18
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
DEVICE FOR GRIPPING COLUMNAR MEMBER, AND VEHICLE HAVING THAT DEVICE
European Patent Office | 2020
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