| 摘要 |
PROBLEM TO BE SOLVED: To enhance the rigidity to the vibration of a connecting part of a suspension of a car body lower part with a trailing arm. SOLUTION: In this lower body structure, a front end of a trailing arm 1 is connected to a car body lower part through a suspension bush 10. On this occasion, an inverted vessel-like hat-shaped bracket 7 for closing a hole 23 of a bottom surface 21 of the rear side member 2, is mounted on a position where a closed cross section A formed by a rear side member 2 and a rocker rail inner panel 3, a closed cross section B formed by the inner panel 3 and a wheel house outer panel 4, and a closed cross section C formed by a cross member 5 and a floor panel 6 are connected. A flange part 71 (71a, 71b) of an opening peripheral edge of the bracket 7 is integrally overlapped to a connecting part of the rear side member 2 and the inner panel 3, and a connecting part of the rear side member 2 and the cross member 5, the suspension bush 10 is mounted on a lower space of the bracket 7, and both ends of a supporting shaft 14 are respectively fastened to the connecting parts. |
