ENERGIABSORBERANDE AGGREGAT

摘要

An energy-absorbing assembly 10 employed particularly as a vehicle bumper includes a compressible energy- absorbing material 22 (such as foamed polyurethane) supported on a beam 12. A sheet of flexible, material 24 is attached to the beam at spaced positions 26 and envelops the energy- absorbing material 22 (when viewed in cross-section) so that a portion of the sheet upon impact can be placed in tension between the impact position 30 and at least one of the spaced positions of attachment 26 to compress and dissipate energy throughout the energy- absorbing material 22. The compressible energy-absorbing material may comprise two blocks 22 spaced on the beam 12 and enveloped by flexible sheets 24 attached to the top and bottom of the beam 12. The sheet 24 may alternatively be attached to the ends of the beam 12.