Patent ID: 8348313

Claim:
An energy absorber for a vehicle having a bumper beam, the energy absorber comprising: a molded elongate member having a longitudinal axis, engaged to said bumper beam and including one or more corrugated sections, the corrugated sections including a plurality of channels, said channels having a length of 110-160 mm, a width of 45-220 mm and a depth of 30-100 mm, said length of the channels extending in a plane that is not parallel with the longitudinal axis of the member; wherein the channels include a front wall and a pair of spaced apart vertically extending side walls having a length, and one or two at least partial end walls; wherein said vertically extending side walls have a length that is greater than said depth; the elongate member further including a base section extending between said channel walls and one or more flange portions that extend from said base; at least one attachment section for engagement to said bumper beam; wherein at least one side wall of said pair of side walls of at least one of said channels includes at least one opening completely defined by said at least one side wall; wherein said plurality of channels are separated by 50 mm to 200 mm; and wherein one side wall of said pair of side walls of at least one of said channels is more resistant to crumpling than the other side wall.