To provide a technique for realizing both of suppression of fatigue of connected portions of a lower back panel with rear side members and securement of a wide rear part cabin space.SOLUTION: A vehicle body rear part structure disclosed in the present specification includes: a pair of rear side members extending in a vehicle body front-back direction at a vehicle body rear part; a rear floor panel disposed on the rear side members; and a lower back panel connected to rear ends of the rear side members and connected to a rear edge of the rear floor panel. A connection boundary between the lower back panel and the rear floor panel forms a protruded shape such that the center in a vehicle width direction is located on a vehicle body rear side more than both ends as viewed from above, and the connection boundary has two inner bent portions bent toward a vehicle body front side, and two outer bent portions bent toward a vehicle body rear side. The two inner bent portions are respectively located between connected portions of the lower back panel with the pair of rear side members. The two connected portions are located between the two outer bent portions.SELECTED DRAWING: Figure 2

    【課題】本明細書は、ロアバックパネルとリアサイドメンバの接合部の疲労を抑えることと、広い後部車内空間の確保を両立する技術を提供する。【解決手段】本明細書が開示する車体後部構造は、車体後部にて車体前後方向に延びている一対のリアサイドメンバと、リアサイドメンバの上に配置されているリアフロアパネルと、リアサイドメンバの後端に接合されているとともにリアフロアパネルの後縁に接合されているロアバックパネルを備える。ロアバックパネルとリアフロアパネルとの接合境界は、上からみたときに、車幅方向の中央が両端よりも車体後方に位置するように凸形状となっており、車体前方に折れ曲がっている2個の内側屈曲部と、車体後方に折れ曲がっている2個の外側屈曲部を有している。2個の内側屈曲部はロアバックパネルと一対のリアサイドメンバのそれぞれとの接合部の間に位置しており、2個の接合部は2個の外側屈曲部の間に位置している。【選択図】図2


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    Title :

    VEHICLE BODY REAR PART STRUCTURE


    Additional title:

    車体後部構造


    Contributors:

    Publication date :

    2023-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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