RU2032881C1 - Protecting layer of bullet-proof vest - Google Patents

Abstract

FIELD: army, police. SUBSTANCE: bullet-proof vest protecting layer is made of inner and outer layers. Inner layer is made of armour members, overlapping each other by horizontal edges. Outer layer is made of armour members, overlapping each other by vertical members. In the case, overlappings of inner layer horizontal armour members edges are located over corresponding overlappings of outer layer armour members. Armour members are situated in fabric pockets, fixed to supporting base or pockets with armour members of inner layer and with armour members of outer layer upper part are fixed to supporting base and pockets of the rest outer armour members are fixed to pockets of overlaying armour members of inner layer. In the case, inner layer armour members are made in the form of strips of material, made of polymer and several layers of high-impact fabric and their vertical edges are made flexible, serve as vertical links and are sewed by thread seam. EFFECT: protecting layer of bullet-proof vest is used to protect persons from rifle shooting. 3 cl, 4 dwg

Description

 The invention relates to personal protective equipment against firearm defeat, in particular to body armor.

 Known protective clothing containing a bar consisting of several segments located end-to-end with adjacent segments. A seam is formed at the joints. There are devices connecting segments along the seams with the possibility of limited rotation around the seams. The first bar overlaps the second. Each segment of the second strip is associated with one of the segments of the first [1] The disadvantage of this clothing is the weakening of the protective layer at the joints of the plates, as well as its lack of flexibility.

 The closest solution to the proposed one is the solution according to which the protective layer of the body armor contains a two-layer structure of rectangular or square plates mounted mutually, preferably in the pockets of the supporting material. The outer layer consists of steel plates, at least some of which are installed with mutual overlapping of each other according to the type of scales. The inner layer, located closer to the body, is designed to absorb and disperse the energy of the bullet. The relatively thick (more than 10 mm) plates of this layer made of polyamide are located in the same plane (on a common surface) and adjoin each other with horizontal edges, beveled along an inclined plane (sliding hinge), and their vertical edges are articulated in the form of a flat hinge (rotary joint). The hinges of both types of the inner layer are aligned (in alignment) with the overlap of the steel plates.

Steel plates are placed in individual pockets, and plates of the inner layer are arranged in horizontal rows in common pockets [2]
The disadvantage of this protective layer is its weakening-reduced resistance to dynamic shock in places of horizontal joints due to the weakness of the corresponding joints of the plates of the inner layer.

 Another disadvantage of the protective layer is the need for additional efforts to bend it, especially in areas where the body armor is covered by a waist belt, since to offset the rows of plastic plates relative to each other, it is necessary to push the outer layer plates that are shifted in the vertical direction according to the principle of telescopic articulation.

 An object of the invention is to improve the protective properties of the protective layer by increasing its equal strength to local impact.

 This problem is solved due to the fact that in the protective layer of the body armor, including the inner layer containing rectangular hinged plates equipped with vertical hinges, attached to the carrier base by means of flexible suspensions in the form of fabric pockets with horizontal edges overlapping each other, and an outer layer containing monolithic and / or assembled from plates overlapping each other with vertical edges in places corresponding to the indicated vertical joints, and rectangular armored elements, set Installed by means of flexible suspensions in the form of fabric pockets with overlapping one by the other horizontal edges, overlapping horizontal edges of the armor elements of the inner layer are located above the corresponding overlapping armor elements of the outer layer.

 In addition, the flexible pendants of the outer layer armored elements covered by the overlying armored element are connected to the flexible pendants of the upper armored layer of the inner layer. It is also preferable to make the inner layer armored elements in the form of strips of a material containing a polymer and several layers of high-strength fabric, while the indicated sections are made in the form of hard plastic and the fabric is sewn with a seam at narrow gaps between the indicated sections and used as vertical joints.

 In FIG. 1 shows a general view of the upper portion of the front section of the protective layer; in FIG. 2 and 3 of section AA and BB in FIG. 1 for a preferred embodiment of the protective layer; in FIG. 4 option to improve the protective layer of the prototype.

 The protective layer in FIG. 1 is conventionally shown flat, and in FIG. 3, the carrier layer and fabric pockets are not conventionally shown.

 The protective layer consists of two layers of armor elements: the inner one, located on the body armor closer to its back (lining) side, and the outer one, located on top of the inner one on the front side of the body armor.

 The inner layer on the shown fragment of the protective layer (Fig. 1, 2 and 3) includes armor elements 1-4, respectively placed in pockets sewn to the carrier layer 9. Other methods of attaching plates to the carrier layer can also be used: by gluing onto strips of fabric or using tape pendants.

 Armor elements 1-4 are made in the form of strips drawn from several layers of fabric based on high-strength, for example, aramid, fibers. In separate sections k, l, m, n, p for the one shown in FIG. 3 armor elements 3 fabric is impregnated with a thermoplastic polymer binder and pressed at elevated temperature. As a result of this, the armor element in the crimping areas acquires plastic stiffness. The non-pressed layers of fabric in the spaces between the plastic sections are stitched with a thread seam q, which provides a reduction in the thickness of the package, improved flexibility and increased bulletproof resistance of the armored element in the indicated intervals. Armor elements 1-4 can be made from combined armor.

 The outer layer is formed by metal (steel or titanium) armor elements 10-13. Armor elements 10 and 11 are monolithic, and armor elements 12 and 13 are assembled on a common basis (not shown conditionally) from plates 14 overlapping each other with vertical edges (Fig. 3).

 For body armor designed to protect against high-energy bullets of small arms, armor elements 12 and 13, as well as armor elements 10 and 11 can be made in the form of monolithic metal or ceramic inserts (inserts). In this case, in the remaining areas, the protective layer may be single, containing only the inner layer. The protective layer of body armor designed to hold striking elements with an average level of kinetic energy may have an outer layer made of metal plates overlapping each other with vertical edges in places corresponding to the hinged spaces of the armor elements of the inner layer.

 Armor elements 10-13 are placed in pockets 15-18. The pocket 15 is sewn directly to the carrier layer 9, and the pockets 16, 17, 18 of the armored elements 11, 12, 13, overlapped by the overlying armored element, are sewn respectively to the pockets 5, 6, 7 (Fig. 4).

 It is also possible sequential hanging of the outer layer armor to each other. In this case, the pocket of each armored element, except for the upper one, is sewn to the lower part of the pocket of the overlying armored element on the back side.

 In both versions of the suspension of armored elements to the bearing layer, the areas of overlap of the armored elements of the inner layer are located above the corresponding overlap of the armored elements of the outer layer, which increases the equal strength of the protective layer to a local impact directed normal to the protective layer (worst case impact).

 The multi-strength of the protective layer in the embodiment shown in FIG. 4, increases due to the fact that the gap between the armored elements of the outer layer and the overlap zone of the armored elements of the inner layer allows you to absorb more energy spent on the deformation of the armored elements of the outer layer than is the case in other parts of the protective layer (with a smaller gap).

Claims (3)

 1. A protective layer of a bulletproof vest, comprising an inner layer containing rectangular armored elements equipped with vertical hinges attached to the carrier base by means of flexible suspensions in the form of fabric pockets overlapping each other with horizontal edges, and an outer layer containing monolithic and / or assembled from plates overlapping each other with vertical edges in places corresponding to the indicated vertical joints, rectangular armored elements installed by means of flexible suspensions in the form e fabric pockets with overlapping horizontal edges, characterized in that in it the overlapping horizontal edges of the armored elements of the inner layer are located above the corresponding overlap of the armored elements of the outer layer.  2. The body armor layer according to claim 1, characterized in that it has flexible suspensions of the outermost armor elements covered by the overlying armor element and connected to the flexible suspensions of the overlying armor element of the inner layer.  3. The layer of body armor according to claims 1 and 2, characterized in that in it the armor elements of the inner layer are made in the form of strips of a material containing polymer and several layers of high-strength fabric, while these strips are made in sections of hard plastic, and the fabric is narrow the gaps between the sections are stitched with a thread seam and used as vertical joints.

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