| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vehicle rear part structure capable of increasing joint strength of a rocker inner reinforcement to a rocker outer reinforcement against a load such that the rocker inner reinforcement is separated from the rocker outer reinforcement in a vehicle width direction.SOLUTION: Each of flat plate parts 30, 60 of a rocker outer reinforcement 14 and a rocker inner reinforcement 44 is spot-welded to an upper wall part 104 of a joining member 102 while being opposed to the upper wall part 104 substantially in a vehicle vertical direction. Each of lower side lateral wall parts 34, 64 of the rocker outer reinforcement 14 and the rocker inner reinforcement 44 is spot-welded to the lower wall part 114 of the joining member 102 while being opposed to the lower wall part 114 substantially in the vehicle vertical direction. When a rear side member 72 pulls the rocker inner reinforcement 44 to the inside in a vehicle width direction by inputting the load from the rear side to the rear side member 72, the pulling force acts on a welded part mainly in a shear direction. |
