Patent ID: 8511746

Claim:
A frame for a vehicle which is formed to have a closed cross section and constitutes part of a vehicle body, comprising: a first face portion on which a compressive force acts when a load acts from an outside; a second face portion on which a tensional force acts when the load acts from the outside; a pair of third face portions located between the first face portion and the second face portion and forming a ridgeline together with the first face portion; a longitudinal bead provided at least at one of the third face portions at a specified position near the ridgeline between the first face portion and the third face portion and extending in a longitudinal direction of the frame in a line shape, the longitudinal bead projecting toward the outside of the frame so as to have a substantially U-shaped cross section; and first and second lateral beads provided at said third face portion where the longitudinal bead is provided and respectively extending in a line shape from the first face portion toward the second face portion, the first lateral bead extending in a sectional direction perpendicular to the longitudinal direction of the frame, the second lateral bead being located adjacent to the first lateral bead and extending in a slant direction relative to the longitudinal direction of the frame, the first and second lateral beads projecting toward the outside of the frame so as to have a substantially U-shaped cross section, respectively, wherein said first and second lateral beads connect to said longitudinal bead on the side of said first face portion and the first and second lateral beads connect to each other on the side of said second face portion, whereby a substantially triangular area is formed at the third face portion by the longitudinal bead, the first lateral bead and the second lateral bead which extend continuously surrounding the area.