초록 ▼

A vehicle bumper system having a metallic elongated reinforcing member extending substantially across the width of the vehicle. The reinforcing member can be made from aluminum or steel and has a generally .SIGMA.-shaped cross section which is filled with energy-absorbing foam. The .SIGMA.-shaped cr

A vehicle bumper system having a metallic elongated reinforcing member extending substantially across the width of the vehicle. The reinforcing member can be made from aluminum or steel and has a generally .SIGMA.-shaped cross section which is filled with energy-absorbing foam. The .SIGMA.-shaped cross section is preferably formed by extrusion. A preferred composition of the reinforcing member is an aluminum alloy selected from the group of 6XXX and 7XXX alloys.

대표청구항 ▼

[ What is claimed is:] [1.]1. A vehicle bumper assembly comprising:a) an elongated reinforcing member having a generally .SIGMA.-shaped cross section along its length, said generally .SIGMA.-shaped cross section comprises a rear wall connected to a substantially parallel top and bottom wall, said ge

[ What is claimed is:] [1.]1. A vehicle bumper assembly comprising:a) an elongated reinforcing member having a generally .SIGMA.-shaped cross section along its length, said generally .SIGMA.-shaped cross section comprises a rear wall connected to a substantially parallel top and bottom wall, said generally .SIGMA.-shaped cross section having an open face opposite said rear wall which faces bumper assembly fascia; andb) foam filling said elongated reinforcing member along its length; rein during an impact, said foam absorbs some impact energy and distributes impact forces to said generally .SIGMA.-shaped cross section such that said top and bottom walls rotate in opposite directions inwardly about a center longitudinal axis of said reinforcing member.