Patent ID: 8585133

Claim:
A vehicle body frame structure wherein, a frame surrounding a vehicle compartment is formed of a first octagonal shape by: a pair of left and right side sills; a dashboard lower cross member; a middle cross member; a pair of outriggers obliquely connecting front ends of the side sills and opposite left and right ends of the dashboard lower cross member; and a pair of gussets obliquely connecting rear ends of the side sills and opposite left and right ends of the middle cross member, a frame surrounding an engine compartment positioned frontward of the vehicle compartment is formed of upper and lower U-shapes, the lower U-shape being defined by a common front bumper beam which is curved so as to project frontward, and a pair of front side frames which extend from the front bumper beam toward the first octagonal shape, the upper U-shape being defined by the common front bumper beam and a pair of upper members which extend from opposite left and right ends of the front bumper beam in an upward and rearward direction and outward of the front side frames toward the first octagonal shape, a frame surrounding a fuel tank housing part positioned rearward of the vehicle compartment is formed of a second octagonal shape by: a pair of rear side frames; the middle cross member of the first octagonal shape; a rear cross member; a pair of gussets obliquely connecting front ends of the rear side frames and the opposite left and right ends of the middle cross member; and a pair of enlarged width portions formed by enlarging obliquely forwardly opposite left and right ends of the rear cross member connected to the rear side frames, and a frame surrounding a trunk compartment positioned rearward of the fuel tank housing part is formed of an U-shape by: a rear end frame curved so as to project rearward; and the pair of rear side frames extending from opposite ends of the rear end frame toward the front of the vehicle body, wherein the pair of outriggers is in contact with the front ends of the side sills and the opposite left and right ends of the dashboard lower cross member respectively.