LOWER BODY STRUCTURE OF VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a lower body structure of a vehicle capable of improving body rigidity by connecting the rear end part of a tunnel reinforcement and a cross member in the rear of a floor panel and dispersing a load at the time of collision. SOLUTION: The lower body structure of the vehicle is provided with a tunnel part 2 extending in the longitudinal direction of the vehicle in the central part of the floor panel 1, and the tunnel reinforcement 11 disposed along the tunnel part 2 and forming a closed cross section 12 between it and the tunnel part 2. The closed cross section 12 between the tunnel reinforcement 11 and the tunnel part 2 or a kick-up part 10 is communicated with a closed cross section 17 between the kick-up part 10 and a cross member 16 by connecting the rear end part of the tunnel reinforcement 11 and the cross member disposed in the vehicle width direction in the kick-up part 10.