To suppress a cost increase of a vehicle body skeleton by partially setting a point for use in a high-heat resistance CFRP.SOLUTION: A fastening part structure of a vehicle body skeleton 1 for fastening an engine 2 to the CFRP-made vehicle body skeleton 1 includes a metal-made insert 5 arranged at a fastening part 10 of the vehicle body skeleton 1, and fastened to the engine 2 with bolts 6. The vehicle body skeleton 1 is composed of a general heat resistance CFRP layer 3 except for the fastening part 10, the fastening part 10 of the vehicle body skeleton 1 is composed of the general heat resistance CFRP layer 3 and a high-heat resistance CFRP layer 4 which is higher than the general heat resistance CFRP layer 3 in an upper limit of a heat resistance temperature, the high-heat resistance CFRP layer 4 is arranged between the general heat resistance CFRP layer 3 and the insert 5, and the general heat resistance CFRP layer 3 avoids the direct abutment of the insert 5 and the engine 2.SELECTED DRAWING: Figure 1

    【課題】高耐熱CFRPを用いる箇所を部分的に設定することにより、車体骨格のコストアップを抑制する。【解決手段】エンジン2をCFRP製の車体骨格1に締結する車体骨格1の締結部構造であって、車体骨格1の締結部10に配置され、エンジン2とボルト6で締結される金属製のインサート5を含み、車体骨格1は締結部10を除いて一般耐熱CFRP層3からなり、車体骨格1の締結部10は、一般耐熱CFRP層3と一般耐熱CFRP層3よりも耐熱温度の上限が高い高耐熱CFRP層4との積層からなり、一般耐熱CFRP層3とインサート5との間に高耐熱CFRP層4が配置され、一般耐熱CFRP層3がインサート5及びエンジン2との直接当接を避ける。【選択図】図1


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    Title :

    FASTENING PART STRUCTURE OF CFRP (CARBON FIBER REINFORCED RESIN)-MADE VEHICLE BODY SKELETON


    Additional title:

    CFRP(炭素繊維強化樹脂)製車体骨格の締結部構造


    Contributors:

    Publication date :

    2021-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B62D MOTOR VEHICLES , Motorfahrzeuge



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