VEHICLE BODY STRUCTURE FOR AN AUTOMOTIVE VEHICLE

摘要

A vehicle body structure for an automotive vehicle comprising front side frames 21, 21 provided left and right at a front portion of a vehicle body 10 so as to hold a longitudinal center line of the vehicle body therebetween, rear side frames 26, 26 provided left and right at a rear portion of the vehicle body so as to hold the longitudinal center line of the vehicle body therebetween and side sills 23, 23 or floor frames 27, 27 provided left and right so as to hold the longitudinal center line of the vehicle body therebetween and lower than the front side frames and the rear side frames when viewed from the side of the vehicle body, the front side frames, rear side frames and side sills or floor frames sills being connected to each other, and further a floor tunnel having a bottom-open U-shaped cross-sectional structure which extends along the longitudinal center line of the vehicle body between the front side frames and the rear side frames and protrudes upwardly of the side sills 23, 23 or floor frames 27, 27. Auxiliary frames 52, 52 each having a closed cross-sectional structure are provided at an upper portion of the floor tunnel. The auxiliary frames are joined to the front side frames and the rear side frames via extensions 53, 53, 54, 54, each having a closed cross-sectional structure.