Patent ID: 7278667
Filing Date: 2007-10-09
Classification: B60R

Abstract:
1. A bumper system for an automobile vehicle, said bumper system comprising: a beam configured to attach to the vehicle; and an energy absorber coupled to said beam, said energy absorber being tunable for meeting predetermined criteria for both low speed and pedestrian impacts, said energy absorber comprising: a frame portion; and a body comprising a plurality of tunable crush lobes extending from said frame portion, each said crush lobe longitudinally spaced apart from an adjacent crush lobe, at least one crush lobe comprising: a first transverse wall extending substantially parallel to a longitudinal axis of said energy absorber; a second transverse wall spaced apart from said first transverse wall, said second transverse wall extending substantially parallel to a longitudinal axis of said energy absorber; a third transverse wall spaced apart from said second transverse wall, said third transverse wall extending substantially parallel to a longitudinal axis of said energy absorber, said first, second, and third transverse walls extending from said frame portion; and a front wall coupled to said first and said second transverse walls, said second transverse wall located between said first and said third transverse wall, at least one of said first, second, and third transverse walls is rippled.