B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 19/03 (2006.01) B60R 21/34 (2006.01)
Patent
CA 2671936
An energy absorbing structure (10) comprises a body (12) of material such as a foamed polyurethane or polystyrene. The body (12) is covered by a cover (14). The body (12) is relatively brittle, as compared with the cover member (14). An impact from a body (30) results in cracks appearing preferentially in the body (12), rather than in the cover member (14). The cracks (34) propagate through the body (12) to absorb energy from the impact.
L'invention concerne une structure à absorption d'énergie (10) comprenant un corps (12) constitué d'un matériau tel qu'une mousse de polyuréthane ou de polystyrène. Le corps (12) est recouvert d'un élément de revêtement (14). Le corps (12) est relativement cassant, en comparaison de l'élément de revêtement (14). Un impact provoqué par un corps (30) se traduit par des fissures qui apparaissent de préférence dans le corps (12), plutôt que dans l'élément de revêtement (14). Les fissures (34) se propagent à travers le corps (12) pour absorber l'énergie due à l'impact.
Finney Ian Antony
Riches Mckenzie & Herbert Llp
LandOfFree
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