Mechanical & Materials Engineering, Department of
Date of this Version
6-12-2001
Citation
United States Patent Reid et al. Patent No.: US 6,244,571 B1
Abstract
A crash attenuation apparatus for use with a guardrail system having rail posts and rail elements. An impact head has a buffer nose section and a rail post breaking beam system. The post breaking beam system has upper and lower breaking beams attached to the head. A guide tube is attached to the side of the head. A strut member extends from a first attachment point on the rail element to a second point downstream. Upon impact by a vehicle, the head breaks the first rail post, before impacting the strut and buckling the rail element downstream.
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