To improve the energy absorption efficiency (the mass efficiency of absorbed energy) of a vehicular skeleton member.SOLUTION: A vehicular skeleton member includes a hat member 10 and a closing plate 20. The hat member 10 includes a top plate 11, two vertical walls 12, and two flanges 13. The two vertical walls 12 each include a plurality of grooves 31 that extends in the vertical direction (Z-direction) to the lengthwise direction (Y-direction) of the hat member 10. Each groove 31 includes one ridge line and two side faces. The ridge line extends in the vertical direction (Z-direction) to the lengthwise direction (Y-direction) of the hat member 10. The two side faces are respectively connected to the ridge line. A depth a of the groove 31 in the cross-section parallel to the top plate 11, a width b of the groove, and a height e of the vertical wall 12 in the vertical direction (Z-direction) to the top plate 11 satisfy 0.2≤a/e≤0.3 and 0.1≤b/e≤0.3.SELECTED DRAWING: Figure 1

    【課題】自動車骨格部材のエネルギー吸収効率(吸収エネルギーの質量効率)を向上させる。【解決手段】ハット部材10と、クロージングプレート20を備え、ハット部材10は、天板11と、2つの縦壁12と、2つのフランジ13を備え、2つの縦壁12はそれぞれ、ハット部材10の長手方向(Y方向)に垂直な方向(Z方向)に延びる複数の溝部31を備え、溝部31は、1つの稜線と、2つの側面を備え、稜線は、ハット部材10の長手方向(Y方向)に垂直な方向(Z方向)に延び、2つの側面は、それぞれ稜線に接続され、天板11に平行な断面における溝部31の深さaと、溝部の幅bと、天板11に垂直な方向(Z方向)における縦壁12の高さeが、0.2≦a/e≦0.3、かつ、0.1≦b/e≦0.3の関係を満たす、自動車骨格部材を構成する。【選択図】図1


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    Title :

    VEHICULAR SKELETON MEMBER AND ELECTRIC VEHICLE


    Additional title:

    自動車骨格部材および電気自動車


    Contributors:
    SONOBE SOMA (author)

    Publication date :

    2021-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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