PROBLEM TO BE SOLVED: To provide a vehicle understructure capable of suppressing destruction of an undercover caused by a load inputted to a service hole cover and falling-off of fastening bolts or screws.SOLUTION: When a load to a vehicle rear side is inputted to a service hole cover 14, a screw 16 moves toward the vehicle rear side in a hole part 32 of a fastened part 20 of an undercover 10, and an end surface 37 of a case nut 18 engaged by the screw 16 is brought into contact with a first rib 28. The end surface 37 and the first rib 28 come into surface-contact with each other, and thus stress applied to the first rib 28 is reduced. In other words, as the strength of the fastened part 20 is set larger than that of a fitting part 40 of the service hole cover 14, only the service hole cover 14 is destroyed when the load is inputted to the service hole cover 14, and destruction of the undercover 10 and falling-off of the screw 16 are suppressed.SELECTED DRAWING: Figure 3

    【課題】サービスホールカバーに対する荷重入力によるアンダーカバーの破壊と、締結用ボルト又はスクリューの脱落を抑制した車両用下部構造を提供する。【解決手段】サービスホールカバー14に車両後方側への荷重が入力されると、スクリュー16がアンダーカバー10の被締結部20の孔部32内を車両後方側に移動し、スクリュー16が螺合されたケースナット18の端面37が第1リブ28に当接される。端面37と第1リブ28が面接触するため、第1リブ28に作用する応力が低減される。すなわち、被締結部20の強度がサービスホールカバー14の取付部40の強度よりも大きく設定されているため、サービスホールカバー14に荷重が入力された時にサービスホールカバー14のみが破壊され、アンダーカバー10の破壊とスクリュー16の脱落が抑制される。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    VEHICLE UNDERSTRUCTURE


    Additional title:

    車両用下部構造


    Contributors:

    Publication date :

    2017-04-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



    VEHICLE UNDERSTRUCTURE

    SUGIMOTO SHIHO / ISOMURA KAORI / MASAYASU JUN | European Patent Office | 2024

    Free access

    VEHICLE UNDERSTRUCTURE

    KUZUSHIMA SHINYA | European Patent Office | 2018

    Free access

    Vehicle understructure

    KISHIMA FUMIHIKO / TOKUYAMA KOJI | European Patent Office | 2021

    Free access

    VEHICLE BODY UNDERSTRUCTURE

    TANAKA MOTOYUKI | European Patent Office | 2019

    Free access

    VEHICLE UNDERSTRUCTURE

    ITO EIJI / IKEDA AKIHIKO | European Patent Office | 2019

    Free access