To provide a vehicle body rear part reinforcement structure making it possible to suppress an increase in a vehicle body weight and a rise in manufacturing cost, and accomplish upgrading of the rigidities of a bent part of a rear pillar and its surroundings.SOLUTION: In a vehicle body rear part reinforcement structure 1, assuming that a specific range E1 denotes a range from a first position P1 to a second position P2 in a rear pillar 70 and a specific compression direction D1 denotes a direction of a compressive force acting on the specific range E1 when a vehicle body 9 gets twisted, when the specific range E1 is seen on a cross section orthogonal to a direction in which the rear pillar 70 extends, a rear pillar inner panel 10 includes a first wall 11 that extends inward in a vehicle width direction from a front end 71F of a closed cross section 71 of the rear pillar 70 and tilts rearward of the vehicle body 9, and a second wall 12 that extends at least forward from a rear end 71R of the closed cross section 71 and links to the first wall 11. A rear pillar outer panel 20 includes a third wall 23 that extends in parallel with the specific compression direction D1 between the front end 71F and rear end 71R of the closed cross section 71.SELECTED DRAWING: Figure 7
【課題】車体重量の増加及び製造コストの高騰を抑制しつつ、リヤピラーの屈曲部及びその周辺において剛性の向上を実現できる車体後部補強構造を提供する。【解決手段】車体後部補強構造1において、リヤピラー70における第1位置P1から第2位置P2までの範囲を特定範囲E1とし、車体9の捩じれ時に特定範囲E1に作用する圧縮力の方向を特定圧縮方向D1とし、特定範囲E1をリヤピラー70が延びる方向に直交する断面で見た場合、リヤピラーインナパネル10は、リヤピラー70の閉断面71の前端71Fから車幅方向の内側に延びながら車体9の後向きに傾斜する第1壁11と、閉断面71の後端71Rから少なくとも前向きに延びて第1壁11に接続する第2壁12と、を有し、リヤピラーアウタパネル20は、閉断面71の前端71Fと後端71Rとの間で特定圧縮方向D1と平行に延びる第3壁23を有する。【選択図】図7
VEHICLE BODY REAR PART REINFORCEMENT STRUCTURE
車体後部補強構造
2022-12-20
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |