Patent ID: 7988222

Claim:
A vehicle body panel structure capable of minimizing the injury to the head of a pedestrian striking the vehicle body panel, comprising an outer panel, an inner panel arranged on the inside face of this outer panel, and a reinforcing inner panel further arranged on the inside face of this inner panel, wherein said inner panel and reinforcing inner panel respectively have a plurality of elongated concavities and convexities, wherein said elongated concavities and convexities define a corrugated shape in a cross-section in the longitudinal direction of the vehicle body, the elongation of said elongated concavities and convexities being in a direction outside of said cross section, and wherein said panels are joined so as to provide a closed cross-section formed by said inner panel and reinforcing inner panel below a joint of said outer panel and inner panel and so as to provide a closed cross-section formed by said outer panel and inner panel above a joint of said inner panel and reinforcing inner panel, wherein the cross-sectional corrugated shape of said inner panel or reinforcing inner panel is such as to satisfy 0.5<p/d <2.8and 0.05<(h 1 +h 2 )/d <0.35, where the wavelength of the corrugations is p, the wave height of said inner panel is h 1 , the wave height of the reinforcing inner panel is h 2 and the outer diameter of a pedestrian's head is d.