BG64571B1 - Multilayer protection jacket - Google Patents

Abstract

The jacket is designed for the protection, especially of women. It is made of many layers (30) of penetration-resistant material such as polyamide fibres. The jacket is designed to fit closely over a specified area of the body which has to be protected, such as the women's breast. A specific part of the jacket maintains the preset desired form by a series of darts (37) made in the subsequent layers (30), Each dart (37) usually contains V-shaped piece (35) the ends of which are connected in order to form the dart. The V-shaped piece (35) of material is folded in such a way as to form a full one-direction pleat (40) which is fully folded onto one of the sides of the dart (37), in this way an additional layer is formed going on top or found under an adjacent part of the fabric. Darts (37) are angularly shifted towards each other together with pleats (40) orientated in such manner that the additional layer is essentially distributed evenly avoiding any projections or sealings which improves the convenience of wear.

Description

(54) MULTIPLE PROTECTIVE VEST

Technical field

The invention relates to a protective vest made of multiple layers of penetration-resistant material, in particular relates to a protective body vest comprising a part specially shaped to fit snugly against an area of the body, such as a woman's breast, and also to method of making it.

BACKGROUND OF THE INVENTION

The use of highly durable fibers, for example, polyamide fibers in multilayer structures, is known to provide ballistic protection to the body vest. Bulletproof vests with a multilayer structure prove to be very good as a bodyweight vest for men and women, but have difficulty improving the comfort of women wearing such vests, especially when fitting the vest to fit the feminine body.

The comfort of wearing the vest and its effectiveness in preventing injury are closely linked. Depending on the level of protection and the type of fiber, about 10 to 50 layers of fibers are used. This gives rise to a rather rigid structure and obviously does not easily adapt it to the contours of the body, especially in the area of the female breast. If the protective vest does not lie in close contact with the body of women wearing such vests, then the transmission of the impact becomes uneven and the vest does not perform its protective functions as it should. These body parts protected by the vest are particularly vulnerable to injury - oblique shots. In addition, women's breasts are particularly vulnerable to traumatic injury.

Various proposals for a multi-layer vest designed to protect certain areas of the body, such as women's breasts, have already been made. But designing a multi-layered vest in special shapes is difficult due to the fact that the layers of penetration-resistant material are flexible but not relatively elastic. Therefore, there are difficulties in making them. Shaping the front of the waistcoat by connecting individual pieces of material to the overlapping seams using special adhesive pieces is described in US 4 183 097. However, if the overlapping seams are not large enough, angled shots can penetrate the vest, and as the size of the overlapping stitches increases, a hard edge is created in the area where women need the most flexibility.

US 4 578 821 describes the insertion of a flexible multilayer ballistic portion into the front pocket of a carrier garment. This part is held in place by a Velcro hook-and-roll clasp that allows adjusting for different breast sizes, but the protected area is limited and the Velcro clasp cannot provide good ballistic performance. Therefore, this system is only suitable for low levels of protection. UK 2 231 481 describes a waistcoat whose inner part has a porous plastic material adapted to fit snugly against the breast. A molded solid or semi-rigid shock absorber layer was added to the plastic layers and a multilayer ballistic package was finally inserted, all enclosed in a bag. With this construction, the ballistic package is adapted to form by folding around a horizontal line. This can only be done by leaving large openings on the left and right sides of the chest, so protection in the lateral areas will be questionable. In addition, the vest is relatively heavy, firm and uncomfortable to wear.

Another proposal made in US 5 020 157 uses inelastic, rigid cups made of high-strength layered polyethylene material that is worn on a woman's breast and under a plain soft waistcoat to protect against ballistic injury. The pressure created by the impact will nevertheless be transmitted to the edge of the cups, which may cause injury. In addition, hard cups will be uncomfortable to wear.

Forming a body vest by molding aramid fiber layers into a PVC sheath using pressure from

400 - 800 kPa and a heat of 180 ° -300 ° C is disclosed in DE-A-4 423 194 and in WO 1996/001405. However, aramid fibers have an elongation of more than 4%, which can lead to damage during forming. In addition, the formation of the layers extends the fiber, which will increase the gap between the fibers and reduce ballistic efficiency. Also, this molding of the PVC sheath makes the vest relatively tight.

Therefore, the known multi-layer vest solutions fail to provide a lightweight multi-layer structure that fits comfortably to the body, providing excellent ballistic protection and that can be manufactured using available equipment and operating conditions at ambient temperature.

SUMMARY OF THE INVENTION

It is an object of the invention to eliminate the aforementioned problems from the known solutions and to provide a multilayer protective vest shaped to fit snugly onto a particular area that combines a safe vest and high comfort. It is also an object of the invention to provide an easy method for making such a multilayer waistcoat that does not require a feature - reducing heat treatment.

These tasks are accomplished by a piling-folding technology for the formation of layers, forming more or less permanently distributed pence in an angularly displaced sequence, as disclosed below. The invention discloses a protective vest, in particular a body vest, which is made of many layers of flexible, relatively elastic penetration-resistant material to adhere over a particular area to be protected. According to the invention, the layers are held in shape by multiple pence of successive layers of material. Each penny of the individual layer includes a conventional V-shaped piece whose ends are joined to form a penny, whereby a V-shaped piece folded on itself and folded on one side of the penny forms an additional layer, layer or below the adjacent layer.

According to the invention, the pins are angularly displaced from each other by the folded V-shaped pieces, oriented so that the additional layer is substantially evenly distributed. As a result, the multilayer protective vest thus formed is comfortable to wear without diminishing its ballistic protection. The absence of cutting in the presence of pennies means that no weight lines have been created and that protection against metal weapons can be accepted.

The additional layers of folded parts of V-shaped pieces, which are substantially evenly distributed around the designated area, provide additional, protective, protective layers over those shaped parts where metal weapons are more likely to fall obliquely and cause injury . However, the excellent ballistic protection is not the result of these enlarged parts, but is mainly due to the fact that the construction does not show weaknesses that would diminish the ballistic efficiency of the main layers.

The shape produced in this way allows the vest to better fit the contour of the body without limiting the degree of protection provided by the multilayer structure. Due to their even distribution, folded parts do not adversely affect the flexibility and convenience of the vest. In addition, the additional weight of the folded parts is negligible. In this way, the body's protective vest remains lightweight and comfortable to wear, resulting in increased protection against injury. The folded V-shaped pieces of material form pleats, all of which can be oriented in the same direction, i.e. folding is on one side. Usually these pleats are oriented in different directions. In a preferred embodiment, pairs of layers of material have pins at the same angular location with their pleats oriented in opposite directions so that they do not overlap. The layers of material forming these pairs may be adjacent to each other, but it is advantageous to alternate the layers, improving flexibility and comfort while avoiding pressures on the pleats, which can lead to rigidity or protrusions.

Angular gaps may be left between the pins, where appropriate so that the corresponding angular gaps can be left between some or all of the angularly adjacent pleats from the various layers. This can help the flexibility of the molded part without reducing security. This is important and the angular distribution of the pleats should be arranged in such a way that the extra layers are evenly distributed, avoiding protrusions or rigidity that reduce comfort and safety. As a general rule, pence generally extends radially from at least one collection point or area. Typically, the pins are staggered in a staggered manner around the point or area of collection at an angle equal to or greater than the angle of the V-shaped pieces before folding. This avoids the unwanted buildup of the pleated ends.

Each layer of material normally has one pence, or in the case of a multi-ply women's vest, two pence are arranged symmetrically on either side of the two points or areas of collection. Each layer of material may have more pence, for example four pence on both sides and extending above and below both collection points or areas. The main application of the multilayer protective vest of the invention is as a body vest comprising at least one portion formed to adhere tightly over a particular portion of the body, for example torso, neck or neck, shoulder or elbow, knee or other joint area. The bodyguard may be a soft and flexible or relatively rigid or rigid protective structure in the form of cardigans or hand or foot protection and similar clothing.

In particular, a particular application of the invention is as a bodyguard designed to fit snugly over a woman's breast circumference, in which case the vest has two laterally disposed internally shaped concave portions corresponding to the female bust. In this embodiment, the pins are angularly displaced around each of the two laterally disposed concave portions around which the additional layers are evenly distributed.

In this multilayer female body vest, the two laterally disposed concave shaped portions corresponding to the female bust are typically formed by pennies around the upper, lower and outer edges of the concave portions defining a continuously shaped female bust (" monofilament ") breasts. Alternatively, two breast cups may be provided, but this is not necessary. In this case, it will be possible to provide sufficient pins angularly staggered so that the pleats cover substantially the entire circumferential region around each laterally recessed portion. The pencils of this multilayer body jacket for the female body extend radially from the two laterally located points or areas of collection corresponding to the centers of the concave portions, above and below both points or areas of collection and, preferably, extending at an angle of at least about 180 °.

The bodyguard according to the invention has front and rear parts permanently connected to each other or which can be reliably released, for example by Velcro fasteners, the front being, for example, shaped to fit snugly onto the bust of the woman wearing the cardigan, as described new arrangement of pence. The invention also relates to a whole waistcoat and front that can be sold separately. The angle of the V-shaped pieces of flexible material depends on the bend required for each application. For most applications, each of the V-shaped pieces will be made at an angle of about 10 to 40 °.

For the multilayer body jacket for a female body, the angle is from about 15 to 30 °, preferably 20 to 25 °, thus providing concave portions in a shape that is suitable for most female busts.

V-shaped pieces having an angle less than 1CP are acceptable, for example, for forming a neck bend. When small angles are used, special attention will be paid to flexing and positioning the relatively narrow pleats (half of the V corner) to avoid the projections. V-shaped pieces having an angle greater than 40 ^ can be used, e.g.

Typically, the collected layers of material have at least three pence located around each of the two laterally disposed concave portions. For some applications, the placement of two pence may be sufficient, whereby the pleats in the various layers with each pence located are folded in opposite directions and spread in an additional layer of the pleats as much as possible.

Arranging six pence around each of the two laterally recessed portions proves very good for women's cardigans. The maximum number of pence will be determined through this application and through production experiments. The shape created by the arrangement of the pence according to the invention may be symmetrical or asymmetric about one or more points or areas of collection. An asymmetric shape can be provided by asymmetrically distributing the pins located and / or may involve the use of V-shaped pieces (in the same or in different layers) having different angles, or by asymmetrically folding the pleats.

As disclosed in detail below, penetration-resistant material is advantageously made of polyaramide fibers and to improve penetration resistance and reduce deformation of the backing of one or more layers (usually only the back and / or front layer only) can be bonded to a polymer. For the bodyguard, it may also be possible to include one or more front pockets for ballistic panel lobbying or to be connected to other protective layers that improve ballistic performance and / or reduce deformation of the rear sheath where necessary. For example, a solid or semi-rigid layer may be suitable.

Various types of fibers may be applied to the penetration-resistant material used in the multilayer body vest according to the invention, for example fibers containing polyolefin, for example, polyethylene, polyimide, polyester or polyaramide, generally having a durability of at least 900 MPa, according to ASTMD-885 which equals approximately 7 grams / decitex. In order to provide better penetration resistance, the fiber endurance is preferably at least 2000 MPa according to ASTMD885.

Polyamide fibers are preferred because they can have the required durability, even exceeding the preferred 2000 MPa limit, and in addition have good chemical durability.

The fibers can be embedded in the material in many forms, preferably as a knit fabric, fabric, as a non-woven fabric, a unidirectional structure, or a multidirectional layer (e.g., having fibers intersecting at an angle between 20 and 9CP) or as a non-woven layer (e.g. flesh). Film-like layers of penetration-resistant material are also possible.

For reasons of production efficiency, suitability and geometric strength (well-defined stable structure), high-strength fiber fabric is preferred. The fabric structure may accordingly be a plain fabric made of 42x42 or 28x28 ends / cm, or 14x14 or 6.7x6,7 ends / cm, although other fabric structures may be equally well used, depending on established requirements.

The specific weight of such fabrics is generally from 0.02 to 0.5 kg / m ² , preferably from 0.05 to 0.5 kg / m ^2, and in particular from 0.08 to 0.3 kg / m ² to strike a balance between penetration resistance and specific gravity. If the specific gravity is further 0.02 kg / m ^{2, the} ballistic durability of the fabric, even when made of polyamide fibers, is usually unacceptable, on the other hand, if the specific gravity is greater than 0.5 kg / m ² , the use of many tissue layers become impracticable due to weight limitations. The fibers used have an appropriate amount (defined as the weight in grams per 9000 m yarn) of 0.1 to 3500 and 10 to 3500, respectively, depending on the required weight / ballistic ratio. A fiber of 1000 to 3000 fiber is used for applications with lower requirements, while for high performance / low specific gravity applications a fiber with a fiber of 1 to 1000 or more is preferred, in particular 50 to 1000.

In many cases the fiber range from 1 to 3000 is excellent.

The fibers may be presented in uncoated form or coated or otherwise reprocessed (eg re-stretched or heat-treated).

In the case of polyamide fiber use, it is generally not necessary to cover or otherwise process it, but in some cases the fiber coating may be used, for example, to increase their bonding in the polymeric entirety. In order to increase penetration resistance and to reduce deformation of the back cover, one or more layers of the fabric above disclosed, usually only the back and / or front layer can be bonded to a polymer layer or impregnated with a polymer to make use of and the distinctive qualities of the fibers and the integrity of the polymer. Such a mixture contains: a layer composed of fibers having a strength of at least 900 MPa (7 g / decitex) according to ASTMD-885, fully bonded to a polymer having a bending factor of 42 to 1,000 MPa according to ASTMD-790, tensile strength at tear at least 10 MPa according to ASTMD-638 and tear elongation at least 100% according to ASTMD-638.

In such mixtures, a thermoplastic polymer is preferably used. Suitable polymers include specific polyethylene, polyimide, polyether etherketone, ionomer resins, phenol-modulated resins, polyesters.

Preferably, the thermoplastic polymer is an ionomer resin, in particular an ionomer resin containing cations selected from the group consisting of lithium, sodium and zinc, in particular 0.1 to 3% by weight of these cations.

Alternatively, the thermoplastic polymer is a phenol-modulated resin, in particular a phenol-polyvinyl butyryl resin.

Preferably, the polymer as a whole should have a tensile strength at break of at least 20 MPa and an elongation at break of at least 200%, most preferably 300%, both according to ASTMD-638. The flexibility of the polymer layer is an important factor in both the penetration resistance of the mixture and the convenience of wearing a protective vest and includes one of the many constituent layers. The polymer bending coefficient is preferably between 42 and 1000 MPa according to ASTMD-790, in particular between 50 and 800 MPa. A bending factor greater than 1000 MPa indicates a polymer that is too rigid, rigid to withstand effective puncture, or to be worn comfortably as a body armor, while a bending factor of less than 42 MPa indicates a material that is too flexible to provide any effective rigidity of the composition for anti-puncture results. An additional benefit of a body jacket containing such a polymer is the reduction in deformation of the back cover when a bullet strikes the body jacket.

Another significant quality of the polymer layer is its density, in particular from the point of view of the desired low specific weight (expressed in kg / m ^{2 of the} mixture) for the convenience of wearing a protective vest and for the convenient handling and effective design with the aim of reducing weight .

Preferably, the density of the layer containing the polymer component is less than 2,500 kg / m ³ , in particular below 1,500 kg / m ³ , in which respect the ionomer polymer layers are particularly preferred if their density is less than 1,000 kg / m ³ . The polymer continuum as a whole can be suitably used as a layer that can be bonded on one side or on both sides of the fiber-containing layer, depending on the application, and more conveniently within a suitable manufacturing process. In a preferred embodiment, the fibrous layer is enclosed within the polymer continuum to retain the fibers, resulting in an extremely durable mixture. The polymer and the fibrous layers can be bonded in series or in a continuous process, by known means in the art, such as calendering, extruded coating, bonding, impregnation, thermal bonding, other forms of bonding of layered layers of two different materials or even in situ. polymerisation so as to form polymeric integrity with the fibers.

A preferred method of composite fiber / polymer bonding is thermal bonding, for example, molding in a batch process or in the form of a continuous process, in particular by means of a tape or calender. When layers in such a fiber / polymer composition are included in the design of a protective vest according to the invention, such layers can be formed using pins and pleated pleats, as disclosed herein, without the need to use heat during the forming process . It is possible to include one or more fiber / polymer composite layers that will be reshaped.

According to the invention, the method of manufacturing a multilayer protective vest begins by providing a plurality of layers of flexible relatively inelastic penetration-resistant material to be collected in the formed protective vest. Each layer has fold lines defining at least one pence comprising a typically V-shaped piece of material wherein the pins from the various layers are angularly displaced relative to one another at least one point or area of collection. First, the ends of the V-shaped pieces are joined together to form the pins of each layer, with the pins-shaped layers having the same peripheral shape for collection in a protective vest. Usually, all these layers are the same in shape and size. This can sometimes be convenient to arrange layers of slightly different shapes and sizes, for example, to accommodate gradual shaping as the layers stack up. The plurality of layers are then aligned to form the defined portion with the pins of the various layers angularly displaced relative to one another and with V-shaped pieces of material folded in directions to distribute the additional layers evenly around the formed part. This forming operation is performed on a suitable support. To form a vest, for example, layers can be accumulated on a female bust.

Lastly, the multiple layers thus formed are brought together to form the vest. Sequentially accumulated angularly displaced ("rotated") pleats with pleated pleats in growing layers (layer N 2) can be assigned to a gradual outline, the outline being achieved only during subsequent layers 30, 50 or even more layers.

In this way, the protective vest can be made by anatomically accurate accumulation. Each individual layer of relatively inelastic penetration-resistant material can be formed by folding, joining a penny, pleating pleating, and accumulating subsequent layers. On the one hand, it is possible to design garments such as vests to fit the size of the individuals who will wear them. On the other hand, certain garments, such as vests, can be made so that they can be tailored to fit the different people who wear them.

Folding and attachment technology do not require special fittings or tools, but can be implemented through the existing techniques of cutting-edge textile cutting technologies. An advantage of this aggregate technology is that the multilayer molds can be suitably fabricated using relatively thin layers of penetrating-resistant material, accumulating a very large amount of layers, 50 layers or more. It is well known that the ballistic characteristic improves with the amount of layers, even for the same overall density. Preferably, pairs of layers of material have pence at the same angular position, and the V-shaped pieces of these layers are folded in opposite directions so that they do not stack on top of each other, such as pairs of layers with pence with the same angular position, preferably assembled in alternating layers. This technology of accumulation of tight protective layers (in layers where pleats are folded) provides additional protection against ballistic impact, very useful especially in certain areas where bullets or debris fall at an angle (non-perpendicular impact).

The edges of the V-shaped pieces can be sewn to form the pins and preferably use polyamide yarn. Alternatively, these ends may be joined by other means, for example staple fibers, or polyaramide rivets, or by gluing. The layers of impact-resistant material are suitably bonded by sewing.

When layers of material are attached to one another, care is taken to maintain the shape and to avoid the formation of air pockets. The front part of the protective vest may be made by bonding to each other two or more packages of layers of penetrating-resistant material formed by the assembled layers of the angularly displaced pins, as disclosed above.

Explanation of the annexed figures

The invention will be better disclosed by the accompanying figures, of which:

Figure 1 is a perspective view of a bulletproof vest having a front shaped in accordance with the invention as a vest to be worn by a woman;

Figures 2-1 to 2-12 are schematic drawings, each showing one half of one layer of material, the twelve layers of Figures 2-1 to 2-12 being shown before collecting the subsequent layers that form the designated front of the bulletproof vest of Figure 1;

Figure 3 illustrates the formation of a pen in one of these layers;

Figures 4-1 through 4-4 illustrate the collapsing of the pence into four subsequent layers (or during) of their collection;

Figure 5 is a schematic illustration illustrating the angular distribution of pleated pleats;

Figure 6 is a schematic illustration illustrating how the back of the safety vest of Figure 1 can be assembled.

Examples of carrying out the invention

Figure 1 shows a thin, light bullet-proof vest consisting of a front portion 10 that is formed to fit snugly on the breast of a woman wearing the vest and a back portion 20, each being made by collecting layers of penetrating - resistant material. The anterior portion 10 has an upper thoracic portion 14 and a lower thoracic portion 15 formed to form two laterally disposed internally shaped concave portions corresponding to the female bust. The inner layers of penetrating-resistant material forming the front 10 are formed by a series of angularly displaced pins, as will be disclosed in the explanations in Figures 2-4.

As shown in Figure 1, the front 10 and the rear 20 of the waistcoat are preferably fastened securely to each other through a series of Velcro fasteners, namely, Velcro fasteners 11 located at the upper ends of the waistcoat. front 10 and interacting with Velcro straps worn by shoulder straps 21 attached to the rear 20, as well as Velcro fastening straps 12 at the lower edges of the front 10 interacting with Velcro straps worn from lateral straps 22 attached to the lower part of the back 20. These sidebars 22 carry additional Velcro transverse straps 23 and, for added security, a belt 24 provided with Velcro fasteners.

The layers of permeable material forming the front 10 are closed between the outer covering layer and the liner of non-permeable material. To fit this outer layer to the shape of the front 10, jars 17 are provided that extend upwards and above the bust level. According to the invention, particular importance is given to the fact that the inner layers of penetrating-resistant material are not cut, but are collected through a series of angularly displaced pins having pleated pleats, as disclosed in the figures 2-4. If necessary, the outer covering layer may have a pleated pleated pen similar to that of the inner layers of penetrating-resistant material. Each of Figures 2-1 to 2-12 shows the right half of one of the twelve layers of penetration-resistant material before collecting these subsequent layers to form the designated front 10 of the bulletproof vest of Figure 1. The other half of each layer 30 is a mirror image of line X. The lines shown inside the boundaries of each layer 30 are merely indications that serve to show folding and connecting lines. Each layer 30 has two side extensions 31 (corresponding to the portions of the front 10 that fit snugly around the waist of the carrier vest), sleeve curves 32 (corresponding to the portions of the front 10 that fit snugly under the arms of the carrier vest), upper chest enclosure 33 (corresponding to the portions of the front 10 that cover the upper thorax of the carrier vest where the fastening straps 11 are fastened) and door curvature 34 (corresponding to the portion of the front 10 adjacent to the neck of the carrier. vest).

Each half of the layer 30 also has a V-shaped piece 35 having a center line 36 of folding around which can be folded and connected to form a penny, as illustrated in Figure 3. This figure shows a layer corresponding to that of Figure 2-1 or Figure 2-3. As shown, the layer 30 is folded around a vertical fold line 38 coinciding with the center fold line 36, after which the layer 30 may be connected by sewing or stapling along a pen 37 defining a V-shaped piece 35 to to form a pence 37 and to obtain a pleated 40, which is a V-shaped piece 35, folded on itself. As shown for layers 30 in Figures 4-1 to 4-4, when two pence are formed in the right and left parts of each layer 30, the outer boundary of layer 30 takes on a shape that is substantially the same for all layers and corresponds to however, the subsequent layers 30 may have different shapes and sizes, and the purpose of the shape should be accumulation.

Comparing figures 2-1 to 2-12, it can be seen that the subsequent layers have pins 37 which are angularly displaced relative to each other around the collection point 39, wherein each layer 30 has two laterally arranged collection points 39 corresponding to the centers of the concave portions of the front portion 10 so adapted as to accommodate the breast of the wearer of the vest. These collection points 39 are approximately equally spaced for all twelve layers 30. It will be clarified that the tapered ends of the pins 37 will be distributed around a collection area, such as a circular area that is not folded as a result. Such an area will be large enough to prevent rotation and unwanted "straining" at the point of collection. The corresponding pairs of layers 30 of material - namely, those of Figures 2-1 and 2-3; 2-2 and 2-4; 2-5 and 2-7; 2-6 and 28; 2-9 and 2-11; 2-10 and 2-12 are identical so that the pins 37 of the layers of each pair are arranged at the same angle. The pins 37 of the subsequent layers (Figures 2-1, 22, 2-3, and so on) are angularly displaced relative to each other. Those of Figures 2-1, 2-2 and Figures 2-3, 2-4 are below 180 ° to each other; those of the other subsequent layers are at different angles and are shown in figures 2-5 to 2-12 by folding lines 36. Generally, the pins in oddly numbered layers are located at the top and those in evenly numbered layers are arranged at the bottom of its layer 30, except for layer 30 of Figure 2-10, where the pen is located in the middle. In this example, the angle of the V-shaped piece between the pins 37 is about 22.5 ° so that the six pence are adjacent to each other and extend to 135 °. It can also be seen that in total, the pins 37 extend over an angle of about 195 °, starting from one end at the top of the pins 37 in Figures 2-9 and 2-11 to the pins 37 in Figures 2-2 and 2 -4 at the other end of the lower portion, with a gap between the other pins 37 in Figure 5. As illustrated in FIGS. 4-1 to 4-4, the pleats 40 associated with the pins 37 are folded in alternating directions for make the most acceptable distribution of all twelve layers 30. It will be clarified that the sharpened ends of the pence 37 will be distributed and around an area of convergence, for example, a circular area that as a result is not folded. Such an area will be large enough to prevent rotation and unwanted "straining" at the point of collection.

Corresponding pairs of layers of material 30, namely those of Figures 2-1 and 2-3; 22 and 2-4; 2-5 and 2-7; 2-6 and 2-8; 2-9 and 2-11; 2-10 and 2-12 are identical, so that the connecting lines forming the pins 37 of the layers of each pair are arranged at the same angle. The connecting lines forming the pins 37 of the subsequent layers (Figures 2-1, 2-2, 2-3 and so on) are angularly displaced relative to each other. Those of Figures 2-1,22 and Figures 2-3, 2-4 are below 180 ° to each other; those of the other subsequent layers are at different angles and are depicted in figures 2-5 to 2-12 by folding lines 36. Generally, the connecting lines forming the pence in oddly numbered layers are located at the top and those in evenly numbered ones. layers are located at the bottom of their layer 30, except for layer 30 of Figure 2-10, where the pen-forming connecting lines are located in the middle.

In this example, the angle of the V-shaped piece between the connecting lines forming each pence 37 is about 22.5 ° so that the six pence are adjacent to each other and extend over 135 degrees. It can also be seen that, in general, the connecting lines forming the pins 37 extend over an angle of about 19 ^ starting from one end at the top of the connecting lines forming the pins 37 in figures 2-9 and 2-11 to the connecting lines forming the pins 37 of Figures 2-2 and 2-4 at the other end of the lower portion, with a gap between the other connecting lines forming the pins 37 - figure 5.

As illustrated in Figures 4-1 through

4-4, the pleats 40 connected to the connecting lines forming the pins 37 are folded in alternating one-way directions to allow the most acceptable thickness distribution of the layers to be inwardly rotated so that the waistcoat has a smooth outer surface.

The assembled and shaped layers 30 are clamped or stitched (or otherwise securely fastened together) around their periphery, taking care to maintain their shape during suturing and squeezing air to avoid the formation of air pockets. However, it is preferable not to sew continuously around the periphery, but to sew the peripheral parts one at a time, starting from the upper chest 33 and ending at the lower corners. If necessary, the waist-fit portion may be narrowed to provide better shape. Thanks to the pins 37, the assembled layers 30 are formed, forming two laterally disposed concave portions in a monofacial configuration, adapted to fit snugly on the chest of the wearer, and the pleats in the various layers 30 are oriented in such a way that the additional layers divide substantially evenly around the defined parts, avoiding protrusions or hardness.

Figure 5 schematically illustrates the angular distribution of pleats 40 in the assembled package. In this figure, the pleats 40 are indicated by the numbers L1 to L12 of the respective layer 30 corresponding to figures 2-1 to 2-12. In this example, going clockwise, the pleats L11-L9, L3-L1, L7-L5, L12-L10, L6-L8 and L2L4 are grouped together in pairs, bent in opposite directions around the lines forming their pins 37 The pleats L1-L7, L5-L12, L10-L6 and L8-L2 are all angularly separated from each other along layer 30 without overlapping. Due to the angular staggered arrangement of the pins 37 and the selective orientation of the pleats 40, the pleats in the package do not overlap with each other. In addition, the pleats 40 whose outer edges coincide angularly with each other - in this example 1.3 and 19 - are separated by a non-pleated portion of at least one intermediate layer 30 - namely layers 14-18 - so there is no risk of collision between the pleats 40, which may cause pinching or protrusion.

At the last harvest, the pleats 40 are evenly distributed around the outer portions of the monofacial recesses, providing two additional layers in this delicate area at the locations covered by the pleats 40.

If it is necessary to have two additional protective areas over the exposed areas of Figure 5, this can be achieved simply by incorporating additional layers in the penny package in the additional desired locations.

The front part 10 of Figure 1 can be made by putting together a selected number of packets of twelve layers 30, collected as necessary, for example two packages comprising twenty-four layers or three packages comprising thirty-six layers, etc. It is also possible to make partial collections, for example two and a half packages, comprising thirty layers.

Figure 6 shows how layers of permeable material can be assembled to form the back 20 of Figure 1. Here, the back layers 50, assembled to form the back 20, are put together, curved to the shape of back then sewn or otherwise attached to each other. All the back layers 50 except the last five are sewn together around their periphery 51 and crosswise at 52. The last five layers 50 (which will be located closest to the body) are sewn together only around the periphery 51. The packages are then sewn together only in the upper and lateral areas of the periphery 51.

The front 10 and rear 20 are enclosed in their respective cover layers and lining, and Velcro fastening straps are attached.

An example.

The molded front part 10 of the multilayer vest is manufactured as disclosed above with thirty layers of Kevlar Style 363F fibers sewn using 930 dtex Kevlar sewing threads. Kevlar is a registered trademark of Du Pont. The layers were collected at a breast circumference of 94-64-97 cm (size 42). The finely shaped front is fitted with Plastilina reinforcement material and is subjected to standard ballistic tests. The bullets were aimed at the top, sides and outline of the breasts under standard conditions. All bullets were stopped within the first half of the pack, which indicates good ballistic construction. In addition, the deformation of the Plastilina rear lining is satisfactory.

Legend

L1-L12 - layers 10 - front

- Velcro fastener

- Velcro fastener

- upper chest

lower chest

- side extension

- Tegel

- rear part

- shoulder straps

- side strips

- cross bars

- Belt

- a layer of material cut in shape

- side extension

- sleeve curve

- upper breast casing

- door curl

- V-shaped piece

- central folding line

- Pence

- vertical folding line

- point or area of collection

- pleats

- back layer

- periphery

- cross stitching

Claims (19)

Claims A multilayer protective vest comprising layers (30) of flexible relatively inelastic penetration-resistant material, shaped to fit tightly to a particular area of the body to be protected, characterized in that the layers (30) are gripped through multiple pence (37) in subsequent layers, the material and each pence (37) of the layer contains a V-shaped piece (35) whose ends are joined to form a pence, with a V-shaped piece (35) folded on itself and folded to one side of the pen with is formed by an additional layer, which is overlapping or underneath the adjacent portion of the layer, the connecting lines forming the pins (37) in said plurality of layers being angularly displaced with each other with the folded V-shaped pieces (35) oriented in such a way that that the extra layer is evenly distributed. Cardigan according to claim 1, characterized in that the folded V-shaped pieces (35) are oriented in different directions. Cardigan according to claim 2, characterized in that pairs of layers (30) of material having pins (37) at uniform angular location with their folded V-shaped pieces are oriented in opposite directions so that they do not overlap one over the other. A waistcoat according to claim 3, characterized in that the layers (30) forming pairs of pennies (37) with the same angular disposition alternate through one of the layers. Vest according to claim 1, characterized in that the pins (37) extend radially from at least one collection point. Vest according to claim 5, characterized in that the pins (37) are staggered staggered relative to each other around a point or area of collection (39) at an angle equal to or greater than the angle of the V-shaped pieces (35) before folding. A waistcoat according to claim 1, characterized in that it comprises at least one portion formed to fit snugly on the torso, neck and / or neck region, shoulder area, or elbow, knee or other joint area. A waistcoat according to claim 7, characterized in that it is formed to fit snugly on the breast of a woman, the waistcoat having two laterally disposed internally recessed portions corresponding to the female bust, wherein the pins (37) are angularly displaced about each of the two laterally disposed concave portions and around which the additional layer is evenly distributed. A waistcoat according to claim 8, characterized in that a continuously shaped female bust (" monochrome ") is arranged around the upper, lower, and lateral ends of the concave portions to fit both breasts. 10. Cardigan according to claim 8 or 9, characterized in that the pins (37) are radially arranged at the two laterally spaced points or collection areas (39) corresponding to the centers of said concave portions, wherein the pins (37) extend above and below both collection points (39) at an outer angle of at least about 180 °. Vest according to claim 1, characterized in that each of the V-shaped pieces (35) is made at an angle of 10 to 40 °, usually from 15 to 30 °. 12. Cardigan according to claim 1, characterized in that the pins (37) are arranged in at least three angularly displaced positions around the point or area of collection (39). 13. Cardigan according to claim 1, characterized in that the pins (37) are arranged in at least six angularly displaced positions around the collection point or area. 14. Cardigan according to claim 1, characterized in that the layers (30) of penetrating-resistant material comprise poly-aramid fibers. 15. Cardigan according to claim 1, characterized in that at least one of the layers (30) of penetrating-resistant material contains polyaramide fibers connected to a polymer continuum. A method for manufacturing a multi-layer protective vest as defined in claim 1, comprising: providing multiple layers (30) of flexible relatively inelastic penetration-resistant material, collecting and shaping the layers (30) in a vest, as on each layer (30) outline folding lines (36) defining at least one pence (37) comprising a V-shaped piece of material (35), whereby the pins (37) of the various layers (30) are displaced from each other about at least one collection point (39); joining the ends of the V-shaped pieces (35) to form pins (37) in each layer (30), the molded pins (37) being formed in the same peripheral shape for collection in the shaped waistcoat; collecting the plurality of layers (30) forming a waistcoat with pennies (37) of the various layers (30), angularly displaced by V-shaped pieces (35) of tissue folded in directions, distributing the additional layer substantially evenly; and securing the plurality of formed layers (30) forming the vest. A method according to claim 16, characterized in that the pairs of layers (30) of material have pins (37) in the same angular position, the V-shaped pieces (35) of these layers (30) being folded in opposite directions so that they do not overlap with each other. A method according to claim 17, characterized in that the pairs of layers (30) with pennies (37) are aligned in alternating layers (30) at the same angular position. A method according to claim 16,17 or 18, characterized in that the ends of the V-shaped pieces (35) are joined together, forming pins (37) by sewing, stapling, stitching or gluing.