| 摘要 |
PROBLEM TO BE SOLVED: To improve load transmission efficiency during front collision.SOLUTION: A vehicle lower part vehicle body structure comprises: torque boxes 15 extending from rear parts of left and right front side frames 7 which extend in a vehicle cross direction on a front part of a floor panel 2, toward a rear side vehicle width direction outside, and connected to a front part of a side sill 3; and front side frame extension parts 11 extending from rear parts of the front side frames 7 to a rear side vehicle width direction inside, and connected to a front part of a tunnel side frame 7. The structure further comprises cross members 16 which extend to a rear side vehicle width direction outside in an inclined manner. The cross members 16 are configured so that, front end parts thereof overlap a branch part D between the torque boxes 15 and the front side frame extension parts 11 on the rear sides of the front side frames 7, in plan view.SELECTED DRAWING: Figure 3 |
