F - Mech Eng,Light,Heat,Weapons – 41 – H
Patent
F - Mech Eng,Light,Heat,Weapons
41
H
F41H 5/04 (2006.01)
Patent
CA 2589366
The present invention concerns a ballistic protection against objects such as projectiles from fire arms, alternatively scatter from for example hand grenades. The protection comprises an enclosure (1, 2, 4, 5, 6, 7, 9) adapted so that the object (10) can penetrate the enclosure (1, 2, 4, 5, 6, 7, 9) in at least one area (2); at least one intermediate layer (3) comprising granules (27) arranged within the enclosure (1, 2, 4, 5, 6, 7, 9), which intermediate layer (3) and enclosure (1, 2, 4, 5, 6, 7, 9) are arranged to deaccelerate said object (10). The invention is further characterized in that: the granules (27) are movable arranged with respect to each other; the space in the intermediate layer (3) that is not occupied by granules (27) is filled by a gas medium to enable contact between adjacent granules (27); the granules (27) have mechanical properties so that a granule (27) is crushed and spread in the intermediate layer (3) when it is hit by an object (10), at the same time as adjacent granules (27) are subjected to impulses with a subsequent energy dissipation so that the object and fragments thereof remains in the protection with a reduced risk for ricochets.
L~invention concerne une protection balistique contre des objets tels que des projectiles d~armes à feu ou des fragments notamment de grenades à main. La protection comprend une enveloppe (1, 2, 4, 5, 6, 7, 9) conçue de façon à ce que l~objet puisse y pénétrer par au moins une région (2) ; au moins une couche intermédiaire (3) comprenant des granulés (27) agencée à l~intérieur de l~enveloppe (1, 2, 4, 5, 6, 7, 9), la couche intermédiaire (3) et l~enveloppe (1, 2, 4, 5, 6, 7, 9) étant agencées pour ralentir l~objet (10). L~invention est en outre caractérisée en ce que : les granulés (27) sont mobiles les uns par rapport aux autres ; l~espace dans la couche intermédiaire (3) non occupé par des granulés (27) est rempli d~un milieu gazeux assurant le contact entre des granulés (27) adjacents ; les granulés (27) possèdent des propriétés mécaniques telles qu~un granulé (27) s~écrase et se répand dans la couche intermédiaire (3) lorsque l~objet (10) le percute, alors que les granulés (27) adjacents reçoivent des impulsions entraînant une dissipation d~énergie qui maintient l~objet et ses fragments dans la protection en réduisant ainsi le risque de ricochet.
Jacobsson Lars
Karlstroem Anders
Magnusson Bjoern
Rhedin Henric
Wallerman Lars-Olov
Protaurius Aktiebolag
Ridout & Maybee Llp
LandOfFree
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