| 摘要 |
An energy absorber comprises housing means (1), a store (15) of plastically deformable material (8) mounted in the housing means and having an endstop (27), means (3) for attaching the energy absorber to a structure, means (10) for attaching the plastically deformable material (8) to a structure, and means (7, 5, 6) responsive to a predetermined tensile load effective to deploy said plastically deformable material (8) in a controlled manner from its store whereby said material (8) is permanently plastically deformed during said deployment, thereby absorbing energy. The energy absorber is able to support a load at least twice the predetermined tensile load when further deployment of the material (8) is prevented by the endstop (27).
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