To provide a vehicle body rear part structure capable of improving the torsional rigidity of the whole vehicle body by improving the rigidity of an upper corner part of a back door opening part.SOLUTION: A vehicle body rear part structure has a cylindrical reinforcement structure part 20 extending in the vehicle width direction at an upper corner part of a back door opening part 6 provided adjacent to a rear end part of a roof rail groove 3. The reinforcement structure part 20 has a rectangular shape in vehicle side view and has an upper face part 21 and a rear wall part 22 formed by a side body outer extension panel 10 and a bottom face part 23 and a front wall part 24 formed by a quarter inner upper extension panel 12. Each of the rear wall part 22 and the front wall part 24 extends linearly from the upper part over the lower part.SELECTED DRAWING: Figure 6

    【課題】バックドア開口部の上側コーナー部分の剛性を高めて車体全体のねじり剛性を向上させることが可能な車体後部構造を提供する。【解決手段】車体後部構造は、ルーフレール溝3の後端部に隣接して配置されるバックドア開口部6の上側コーナー部分に車幅方向に延びる筒状の補強構造部20を有する。補強構造部20は、車両側方視で四角形の形状を有しており、サイドボディアウタエクステンションパネル10によって形成される上面部21および後壁部22と、クォーターインナアッパーエクステンションパネル12によって形成される底面部23および前壁部24とを備え、後壁部22および前壁部24のそれぞれが上側部分から下側部分にわたって直線状に延びている。【選択図】図6


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    Title :

    VEHICLE BODY REAR PART STRUCTURE


    Additional title:

    車体後部構造


    Contributors:

    Publication date :

    2023-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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