Dual stage energy absorber

Details Dual stage energy absorber Dual stage energy absorber

2007-04-26

2009-08-04

Lyjak, Lori L (Department: 3612)

Vehicle fenders

Buffer or bumper type

Bumper having impact force absorbing means directly...

C293S102000, C293S130000

Reexamination Certificate

active

07568746

ABSTRACT:
A motor vehicle bumper that has enhanced energy absorption characteristics and that includes one or more unique geometry configurations that extend “softer” energy absorbing surfaces forward in the system while nesting more “rigid” energy absorbing surfaces more rearward only to come into effect when higher energy impacts are observed. The dual energy absorption may be achieved using a number of configurations and/or methods or a combination of several. In one or more embodiments, the wall thickness of the material used in the component or components may be varied, materials having different stiffness properties may be used, and/or geometries of different depth and section stiffness may be alternated across the bumper system.

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