To provide a lower vehicle body structure of a vehicle which inhibits a vehicle component disposed adjacent to an inner side as seen in a vehicle width direction of a frame member from being damaged by an edge part of a hole part during a lateral collision even if the hole part is formed at an inner wall part of the frame member.SOLUTION: A lower vehicle body structure 100 of a vehicle includes: side sills 50; frame members 20 each of which extends in an anteroposterior direction at an inner side as seen in a vehicle width direction of the side sill 50, is formed having a closed cross section, and has an anteroposterior extending part 22 which contacts with the inner side as seen in the vehicle width direction of the side sill 50 and extends along the side sill 50 in the anteroposterior direction; and a pipeline 70 which is disposed adjacent to the anteroposterior extending part 22 and spaced apart from the anteroposterior extending part 22 toward the inner side as seen in the vehicle width direction. The anteroposterior extending part 22 is formed with: a lateral hole part 46 which penetrates through an inner wall part 42, located at the inner side as seen in the vehicle width direction, in the vehicle width direction; and a rib 47 which inhibits out-of-plane deformation of the inner wall part 42 to the inner side as seen in the vehicle width direction when a collision load acting in the vehicle width direction is input through the side sill 50.SELECTED DRAWING: Figure 4

    【課題】フレーム部材の内壁部に孔部が形成された場合であっても、側突時に孔部の縁部によるフレーム部材の車幅方向内側に隣接して配置された車両部品の損傷を抑制する、車両の下部車体構造を提供する。【解決手段】車両の下部車体構造100は、サイドシル50と、サイドシル50の車幅方向内側において前後方向に延びており閉断面に構成されておりサイドシル50に対して車幅方向内側に当接してサイドシル50に沿って前後方向に延びる前後延設部22を有するフレーム部材20と、前後延設部22に対して車幅方向の内側に間隔を空けて隣接して配置された配管70とを備える。前後延設部22は、車幅方向内側に位置する内壁部42に車幅方向に貫通する横孔部46と、サイドシル50を介して車幅方向への衝突荷重が入力されたときに内壁部42の車幅方向内側への面外変形を抑制するリブ47とが形成されている。【選択図】図4


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    Titel :

    LOWER VEHICLE BODY STRUCTURE OF VEHICLE


    Weitere Titelangaben:

    車両の下部車体構造


    Beteiligte:
    KAWASAKI TEI (Autor:in) / NATSUME YUKI (Autor:in) / EBIMOTO KEISUKE (Autor:in) / NAKAMOTO AKIKO (Autor:in) / TSUJI DAISUKE (Autor:in) / OTSUKA TAKETO (Autor:in)

    Erscheinungsdatum :

    11.11.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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