PROBLEM TO BE SOLVED: To secure high rigidity while reducing weight by using a small number of reinforcing members with respect to torsion generated at a vehicle body.SOLUTION: A reinforcing member structure 5 is arranged inside a roof panel and a side body panel 7 along an outline of an opening part in a vehicle width direction at an upper part of the opening part for installing a backdoor of a vehicle body rear part. The reinforcing member structure has a bottom wall face which continues at a constant width by a ridge line in a fore-and-aft direction, the reinforcing member structure has an upper wall 16, a front-side vertical wall 12 and a bottom wall 13, and is formed into a substantially-L shape at its cross section so as to correspond to a flat part of a roof panel at a center side, and a curved shaped part 34 having a closed cross section shape continuing to the side body panel from the roof panel at an end part side of the vehicle width direction is formed at the reinforcing member structure 5. A width W4 in a fore-and-aft direction of the upper wall 16 is set narrow at a center side, and a width W3 in a fore-and-aft direction of an upper wall 17 is gradually widened at the curve shaped part 34 while making the upper wall 17 curve downwardly while continuing to the side body panel side from the roof panel as progressing toward the outside of the vehicle width direction.

    【課題】車体に発生する捩れに対し少ない補強部材で軽量化しつつ高い剛性を確保する。【解決手段】車体後部のバックドア設置用の開口部の上部に補強部材構造体5を車幅方向に開口部の概形に沿ってルーフパネル及びサイドボディパネル7の内側に配置し、補強部材構造体は前後の稜線によって一定幅で連続する底壁面を有し、ルーフパネルの中央側の平坦部に対応して補強部材構造体は上壁16と前側の縦壁12と底壁13とを有して断面略L字状に形成し、車幅方向端部側でルーフパネルからサイドボディパネルに接続する閉断面形状の湾曲形状部34を補強部材構造体5に形成した車体後部の開口部構造において、中央側で上壁16は前後幅W4を狭く規定し、車幅方向外側に向かうにつれてルーフパネルからサイドボディパネル側に連続して上壁17を下方向に湾曲させつつ湾曲形状部34で上壁17の前後幅W3を漸次広くした。【選択図】図8


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    Titel :

    OPENING PART STRUCTURE OF VEHICLE REAR PART


    Weitere Titelangaben:

    車体後部の開口部構造


    Beteiligte:

    Erscheinungsdatum :

    20.08.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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