To provide a collision energy absorbing structure that is able to prevent excessive increase in weight while improving collision energy absorbing performance.SOLUTION: A collision energy absorbing structure 1 comprises: a shell portion 10 including an outer surface 12 including a load assumed-surface 11 and an inner surface 14 defining a closed cross-sectional cavity 13, and extending in one direction; and a reinforcing portion 20 extending in an extending direction of the shell portion 10 and attached to a position opposite to the load assumed-surface 11 of the inner surface 14 of the shell portion 10. The shell portion 10 includes a resin portion 22 provided on a side opposite the load assumed-surface 11 with the cavity 13 therebetween. The bending rigidity of the reinforcing portion 20 is set to be equal to or lower than the bending rigidity of the shell portion 10. The breaking moment of the reinforcing portion 20 or the sum of the breaking moment of the reinforcing portion 20 and the total plastic moment of the reinforcing portion 20 is set to be equal to or less than the sum of the total plastic moment of the shell portion 10 and the breaking moment of the shell portion 10.SELECTED DRAWING: Figure 1

    【課題】衝突エネルギーの吸収性能を向上させつつ、過剰な重量増加を抑えることが可能な衝突エネルギー吸収構造を提供する。【解決手段】衝突エネルギー吸収構造1は、荷重想定面11を含む外面12及び閉断面の空洞13を形成する内面14を有し、一方向に延伸するシェル部10と、シェル部10の延伸方向に延伸すると共に、シェル部10の内面14のうち荷重想定面11と対向する位置に取り付けられた補強部20とを備える。シェル部10は、空洞13を挟んで荷重想定面11と反対側に設けられた樹脂部22を含む。補強部20の曲げ剛性はシェル部10の曲げ剛性以下に設定されている。補強部20の破断モーメント、或いは、補強部20の破断モーメントと補強部20の全塑性モーメントの和は、シェル部10の全塑性モーメントとシェル部10の破断モーメントの和以下に設定されている。【選択図】図1


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    Title :

    COLLISION ENERGY ABSORBING STRUCTURE


    Additional title:

    衝突エネルギー吸収構造


    Contributors:
    INOSE KOTARO (author) / HYOMA KENGO (author) / WADA KASEI (author)

    Publication date :

    2022-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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