Impact absorbing material

F - Mech Eng,Light,Heat,Weapons – 41 – H

Patent

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Details

F41H 5/04 (2006.01) B32B 5/26 (2006.01) D04H 13/00 (2006.01) D04H 1/42 (2006.01) D04H 1/46 (2006.01)

Patent

CA 2435804

A material to reduce the effects of trauma received from the impact of a projectile. One embodiment is a needle-punched, non-woven material including at least one type of ballistic fibers selected and oriented to provide a cushioning effect and maintain a high compressive restitution constant. A percentage of the fibers are oriented with at least their ends lying approximately perpendicular to the fabric plane and/or oriented to lie in a waveform generally along or parallel to the fabric plane. This enables the ends of the fibers lying perpendicular to the fabric plane to cushion the impact from the projectile by dissipating energy through compressional resistance, and the fibers along the fabric plane to reduce energy through dispersal along fiber lines, thereby reducing the trauma resulting from an impact.

L'invention concerne un matériau destiné à réduire les effets traumatisants causés par l'impact d'un projectile. Dans un mode de réalisation, le matériau est aiguilleté et non tissé et comprend au moins un type de fibres balistiques sélectionnées et orientées de façon à fournir un effet amortissant et à maintenir une constante compressive de restitution élevée. Un pourcentage des fibres est orienté avec les extrémités sensiblement perpendiculaires au plan du textile et/ou orienté de façon à être dans une forme d'onde généralement le long ou parallèle au plan du textile. Les extrémités des fibres perpendiculaires au plan du textile peuvent ainsi amortir l'impact provenant du projectile en dissipant l'énergie par résistance de compression, et les fibres le long du plan du textile peuvent réduire l'énergie par dispersion le long des lignes de fibres, ce qui réduit le traumatisme provenant d'un impact.

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