초록 ▼

A device and a method for protecting objects against rocket-propelled grenades having a hollow nose cone includes a netting of knotted and coated superstrong fibers disposed in front of the object, in such a manner that the nose cone of a rocket caught in the netting will penetrate one of the meshes

A device and a method for protecting objects against rocket-propelled grenades having a hollow nose cone includes a netting of knotted and coated superstrong fibers disposed in front of the object, in such a manner that the nose cone of a rocket caught in the netting will penetrate one of the meshes of the netting and be deformed through strangulation, thereby disabling the detonator.

대표청구항 ▼

1. A method for protecting objects against rocket-propelled grenades (RPGs) having a hollow nose cone, comprising: providing a netting of ultra high molecular weight polyethylene fibers, aramid fibers, polybenzobisoxazole fibers or combinations thereof wherein the netting is knotted and wherein a fl

1. A method for protecting objects against rocket-propelled grenades (RPGs) having a hollow nose cone, comprising: providing a netting of ultra high molecular weight polyethylene fibers, aramid fibers, polybenzobisoxazole fibers or combinations thereof wherein the netting is knotted and wherein a flexible coating is impregnated on the ultra high molecular weight polyethylene fibers, aramid fibers, polybenzobisoxazole fibers or combinations thereof and wherein the size of the meshes of the netting has been selected so that the nose cone of a rocket-propelled grenade caught in the netting will penetrate one of the meshes of the netting and be deformed through strangulation, thereby disabling the detonator and wherein the meshes are capable of withstanding a circumferential load of minimally about 3 kN; and disposing the netting in front of an object. 2. A device for protecting a fortified military post according to claim 1 and further comprising a frame configured to suspend the netting at least at the upper side and the bottom side thereof. 3. The method of claim 1 and wherein the ultra high molecular weight polyethylene fibers, aramid fibers, polybenzobisoxazole fibers or combinations thereof are pre-stretched between the knots. 4. A device for protecting vehicles against rocket-propelled grenades (RPGs), comprising: a netting of ultra high molecular weight polyethylene fibers, aramid fibers, polybenzobisoxazole fibers or combinations thereof that are knotted together and formed with a plurality of meshes having a stretched mesh length of maximally about 8 cm; andan element configured to dispose the netting at a distance of about 15-50 cm from a surface of the vehicle. 5. The device according to claim 4, wherein the stretched mesh length ranges between 7 cm and 8 cm. 6. The device according to claim 4, wherein material of the netting is pre-stretched after being knotted. 7. The device according to claim 4, wherein the meshes are formed by at least three mesh sides, each mesh side being made up of at least two separate fibers. 8. The device according to claim 4, wherein the meshes are provided with projections between the knots thereof. 9. The device according to claim 4 comprising two nettings disposed one behind the other. 10. The device according to claim 4, wherein each knot is a double knot. 11. The device of claim 4 and further comprising an armoured vehicle or vessel provided with armour plating and further comprising an element configured to dispose the netting of the device at a distance away from a surface of the vehicle or vessel. 12. The device according to claim 11, wherein the element comprises an air cushion disposed between the vehicle and the netting. 13. The device according to claim 12, wherein the air cushion is inflatable and comprises one or more sensors configured to detect an acute threat. 14. The device according to claim 11 wherein the element comprises a suspension device for the netting. 15. The device according to claim 11, wherein the element comprises foam material disposed between the vehicle and the netting.