A VEHICLE KINETIC ENERGY ABSORBER

Patentradars sammanfattning

Safe At Site AB's vehicle kinetic energy absorber (SE 548 403) is a self-contained, freestanding barrier unit placed on roads to stop errant vehicles without attachment to the ground or a host vehicle. Upon impact, energy is dissipated in sequential phases: first through plastic deformation as tube members are displaced axially and sheared by bolt-type shear assemblies anchored in concrete ballast bodies, then through sliding friction as the low-profile base skids along the road surface. An optional displaceable intermediate concrete body provides a two-stage internal deformation sequence before whole-unit sliding commences, enabling predictable, tunable deceleration profiles.

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