TW201944023A - High-performance buffering type bulletproof vest characterized in that the shock absorbing pad is a composite material having an energy dissipating gel member, so that an anti-shearing performance of the bulletproof vest can be increased - Google Patents

Abstract

This invention discloses a high-performance buffering type bulletproof vest, which includes: a shock absorbing pad; plural sets of bullet-resisting-fiber fabrics, disposed on the shock absorbing pad; and an outer fabric, disposed on the bullet-resisting-fiber fabrics; wherein the shock absorbing pad is a composite material having an energy dissipating gel member, and each set of the bullet-resisting-fiber fabrics has two woven layers which are staggeringly arranged. Accordingly, the high-performance buffering type bulletproof vest disclosed according to one embodiment of this invention is provided with the shock absorbing pad, so that an anti-shearing performance of the bulletproof vest can be increased, so as to reduce an impact force caused by a bullet to a human body.

Description

High-efficiency buffer type bulletproof vest

The present invention relates to a bullet-proof vest, and more particularly to a highly effective buffer-type bullet-proof vest.

Generally, bulletproof vests are equipped with ballistic fiber cloth to achieve the bulletproof effect, and the number of layers of ballistic fiber cloth determines the ballistic vest's ballistic performance.

Although this bulletproof vest can achieve the bulletproof effect, but because of its weak shear resistance, when the person wearing the bulletproof vest is hit by a bullet, the impact of the bullet on the human body will still cause a certain degree of damage. In addition, the existing bulletproof vests are not specially designed and made for women, which causes women to feel uncomfortable when wearing them. To solve this problem, it is necessary to cut and rejoin the chest line of the bulletproof vest. This way will The elasticity of the ballistic fiber cloth inside the bulletproof vest is reduced.

Therefore, how to propose a bullet-proof vest that can effectively address the aforementioned problems is the positive disclosure of this case.

One object of the present invention is to provide a highly effective buffer type bulletproof vest, which can effectively reduce the impact of a bullet on a human body in addition to achieving a bulletproof effect.

In order to achieve the above and other objectives, the present invention proposes a highly effective buffer type bulletproof vest, which includes: a shock-absorbing gasket; a plurality of ballistic-resistant fiber cloths disposed on the shock-absorbing gaskets; Above the ballistic fiber cloth; wherein the shock absorbing gasket is a composite material including an energy dissipative colloid material, and each group of ballistic fiber cloth includes two woven layers superimposed and overlapped.

In one embodiment of the present invention, the composite material is prepared by kneading a group of components and foaming the composition, wherein the composition includes: a main substrate, which accounts for the total weight of the composition. 50 ~ 80 wt%, the main substrate includes: vinyl acetate; ethylene / vinyl acetate copolymer; and a secondary substrate, which accounts for 10 ~ 40 wt% of the total weight of the composition, the secondary substrate includes: polymer Ethylene; styrene butadiene rubber; thermoplastic elastomer; and additives, which account for 1 to 20 wt% of the total weight of the composition, wherein the density of the shock absorbing gasket is between 0.20 to 0.50, and Bubble ratio is between 20 ~ 40.

In one embodiment of the present invention, the secondary substrate further includes a binary silicon oxide material, and the binary silicon oxide material includes: silicon dioxide particles; and polydimethylsiloxane.

In one embodiment of the present invention, the additive is selected from the group consisting of a foaming agent, a foaming aid, a bridging agent, a bridging aid, color particles, and a filler.

In one embodiment of the present invention, the two knitting layers are a first knitting layer and a second knitting layer. The first knitting layer is woven from a plurality of first warp threads and a plurality of first weft threads. The knitting direction of the first warp is a first knitting direction, and the second knitting layer is woven with a plurality of second warp and a plurality of second wefts, and the knitting direction of each second warp is a second knitting direction And the angle between the second knitting direction and the first knitting direction is between 10 degrees and 60 degrees.

In an embodiment of the present invention, an angle between the second knitting direction and the first knitting direction is 45 degrees.

In one embodiment of the present invention, the two woven layers are made by a one-piece weaving method.

In one embodiment of the present invention, the outer fabric is a splash-proof and anti-wear structure.

In one embodiment of the present invention, the thickness of the shock-absorbing pad is between 6 mm and 9 mm.

Therefore, since the highly effective buffer type bulletproof vest according to the embodiment of the present invention includes a shock absorbing gasket, it further improves the shear resistance of the bulletproof vest and can effectively reduce the impact of the bullet on the human body. In some embodiments, each group of ballistic resistant fiber cloth includes two woven layers that are staggered and overlapped, and the two woven layers are made by a one-piece weaving method. When the high-efficiency buffer type bulletproof vest does not need to be cut at its chest line, the integrity of these elastic fiber cloths can be maintained, thereby maintaining the elasticity of the high-efficiency buffer type bulletproof vest.

In order to fully understand the present invention, the present invention will be described in detail through the following specific embodiments and the accompanying drawings. Those skilled in the art can understand the objects, features, and effects of the present invention from the contents disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed without departing from the spirit of the present invention based on different viewpoints and applications. In addition, the drawings attached to the present invention are merely a schematic illustration, and are not depicted in actual dimensions. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of patent application of the present invention. Instructions are as follows:

FIG. 1 is a partial schematic diagram of a highly effective buffer type bulletproof vest 100 according to an embodiment of the present invention. It should be noted that, in order to show the technical features of the present case more clearly, only the front layer of the high-efficiency cushioning vest 100 is shown in FIG. 1, and some details are omitted.

As shown in FIG. 1, the high-efficiency buffer type bulletproof vest 100 includes a shock-absorbing pad 11, a plurality of ballistic-resistant fiber cloths 13, and an outer cloth 15. The ballistic-resistant fiber cloths 13 are disposed on the shock-absorbing pad 11, and the outer layer cloth 15 is disposed on the ballistic-resistant fiber cloths 13. In this embodiment, the shock absorbing gasket 11 is a composite material including an energy dissipating gel material (EDGM), and each group of the ballistic resistant fiber cloth 13 includes two interwoven layers.

Due to the material properties of the energy dissipating colloidal material, when it encounters a strong impact or shear force, it can instantly become high viscosity or even harden, which is used to absorb the impact force. Therefore, the energy dissipating colloid material can be regarded as a smart protective material, which is used to resist bullets in this embodiment.

Unlike traditional Shear Thickening Fluid (STF) materials, energy dissipative colloidal materials are not subject to the restrictions of fluid coating on the carrier (the impact energy absorption using the coating method is lower) ), The shear thickened fluid raw material can be directly solidified (colloid) into an energy dissipating colloidal material to enhance the energy absorption effect. In addition, this energy dissipating colloidal material is fully compatible with Polyurethane (PU) and Ethylene Vinyl Acetate (EVA). When it is made into a composite material, it can be directly applied to bulletproof vests. To achieve the effects of impact resistance and shock absorption.

In one embodiment, the composite material is prepared by kneading a composition and foaming the composition, wherein the composition includes: a main substrate, which accounts for 50 to 80 of the total weight of the composition wt%; a secondary substrate, which accounts for 10 to 40 wt% of the total weight of the composition; and an additive, which accounts for 1 to 20 wt% of the total weight of the composition. The main substrate may include: vinyl acetate, ethylene / vinyl acetate copolymer. The secondary substrate may include polyethylene, styrene butadiene rubber, and thermoplastic elastomer. In addition, the density of the shock absorbing gasket 11 is between 0.20 and 0.50, and the foaming ratio is between 20 and 40.

For example, in the ethylene / vinyl acetate copolymer, the content of vinyl acetate accounts for 60-90 wt% of the total weight of the ethylene / vinyl acetate copolymer.

In one embodiment, the composition comprises 5 to 10 wt% of vinyl acetate and 40 to 63 wt% of an ethylene / vinyl acetate copolymer; the composition comprises 6 to 18 wt% of polyethylene, 3 ~ 6 wt% styrene butadiene rubber and 2 ~ 4 wt% thermoplastic elastomer.

The thermoplastic elastomer is, for example, a styrene ethylene butene styrene block copolymer, and the additive may be selected from the group consisting of a foaming agent, a foaming aid, a bridging agent, a bridging aid, color particles, and a filler. .

In some embodiments, the secondary substrate further includes a binary silicon oxide material, and the binary silicon oxide material includes silicon dioxide particles and polydimethylsiloxane. For example, the composition contains 6 to 18 wt% of a binary silicon oxide material.

The following table shows the different formulation ratios of the composition for the composite material, but the present invention is not limited thereto. Table I

The proportion of each component in Table 1 is indicated by weight percentage. Among them, VA stands for Vinyl acetate; EVA stands for Ethylene-vinyl acetate; PE stands for Polyethylene; SBR stands for Styrene Butadiene rubber; SEBS stands for Styrene Ethylene Butylene Styrene Block Copolymer. It is a thermoplastic elastomer. The above materials are all commercially available.

The composite material was prepared by using the composition of Example 1-1. First, the composition described in Example 1-1 was kneaded. The kneading method and process conditions are not particularly limited, as long as each component in the composition of Example 1-1 can be sufficiently mixed. In one embodiment, the composition of Example 1-1 is first put into a kneader for first-stage kneading and mixed into a plastic mixture. The process temperature is controlled, for example, between 80 ° C and 150 ° C. It is 15 ~ 30 minutes. Subsequently, the plastic mixture is further kneaded by double-roller rolling. The process temperature is controlled, for example, between 80 ° C and 130 ° C, and the kneading time is, for example, 3-6 minutes.

Then, the above-mentioned kneaded composition is foam-formed in a mold, thereby obtaining a plate-like composite material. The method and process conditions of foam molding are not particularly limited, and a foam molding method known in the technical field to which the present invention belongs can be used. In one embodiment, the foaming is performed by one-time foam molding, and a batch type hydraulic press is used to perform the bridge foaming. The process temperature is controlled, for example, between 130 ° C and 160 ° C, and the foam molding time is, for example, 30-50 minutes. The foaming limiting pressure is, for example, 150 kg / cm ² to 250 kg / cm ² . By controlling the above process parameters, the density of the plate-like composite material can be controlled between 0.20 and 0.50, and its expansion ratio can be controlled between 20 and 40.

Finally, the obtained plate-shaped composite material is cut, thereby obtaining a shock-absorbing pad 11. The thickness and shape of the shock-absorbing pad 11 after being cut are not particularly limited. Those with ordinary knowledge in the technical field to which the present invention pertains may cut the obtained plate-like composite material into shock-absorbing materials having various thicknesses and shapes. The gasket 11 conforms to various wearable protective devices, such as: male bullet-proof vests, female bullet-proof vests, helmets, bullet-proof masks, knee pads, and elbow pads.

The method for preparing a composite material using the composition of Examples 1-2 and 1-3 is similar to the method for preparing a composite material using the composition of Example 1-1, but the composition of Example 1-1 is replaced with an example Compositions of 1-2, 1-3.

In general, the colloidalization process is to add a cross-linking agent to the shear thickening solution, and then solidify it according to its properties with the help of a mold and heating. The shear thickening solution is self-foamed and shaped into Shock-absorbing gasket 11 of desired shape. In addition, in an embodiment, the thickness of the cut shock-absorbing pad 11 may be between 6 mm and 9 mm. A too thick shock-absorbing pad 11 will increase the weight of the highly effective buffer type bulletproof vest 100 and may cause inconvenience in wearing; too thin a shock-absorbing pad 11 will not achieve the expected cushioning effect. The thickness of the shock absorbing gasket 11 of the present invention is not limited to the above range, and may be changed according to practical applications.

The following tests the impact resistance of the general bulletproof vest (Test 1) and the high-efficiency cushioning bulletproof vest 100 (Test 2) of the embodiment of the present invention. A general bulletproof vest contains 45 pieces of ballistic fiber cloth (herein, one piece of ballistic fiber cloth is a woven layer) and does not have shock-absorbing pads; the high-efficiency buffering ballistic vest 100 according to the embodiment of the present invention includes three A 3 mm shock-absorbing pad 11 (prepared from the composition of Example 1-1 above), and 30 sheets of ballistic fiber cloth.

The test method is that the general bulletproof vest (Test 1) and the high-efficiency buffer type bulletproof vest 100 (Test 2) of the embodiment of the present invention are respectively placed on sludge, which is used to simulate human chest tissue. Then hit the .44 McGonnon empty-point metal coated bullets to the six shooting positions P1 ~ P6 on the general bulletproof vest (Test 1) and the high-efficiency buffer bulletproof vest 100 (Test 2) of the embodiment of the present invention. . By measuring the depth of the depression corresponding to the aforementioned six shooting positions P1 to P6 on the sludge placed on the general bulletproof vest (Test 1) and the highly effective buffered bulletproof vest 100 (Test 2) of the embodiment of the present invention, Impact resistance of the general bulletproof vest (Test 1) and the high-efficiency buffer type bulletproof vest 100 (Test 2) of the embodiment of the present invention. The test results are shown in Table 2 below. Table II

With reference to the test results in Table 2, compared with the general bulletproof vest (Test 1), when the highly effective buffered bulletproof vest 100 (Test 2) of the embodiment of the present invention was fired by a .44 McGonnon empty-point metal cover bullet, all The depression depth of the sludge at the shooting positions (P1 ~ P6) is shallower than the depression depth of the sludge at all shooting positions (P1 ~ P6) corresponding to the general bulletproof vest (Test 1). It can be known from this that the impact resistance performance of the highly effective buffer type bulletproof vest 100 according to the embodiment of the present invention is better than that of a general bulletproof vest.

FIG. 2 is a partial exploded view of two sets of woven layers of ballistic fiber cloth 13 according to an embodiment of the present invention. As shown in FIG. 2, in this embodiment, each group of the ballistic resistant fiber cloth 13 of the high-efficiency buffer type bulletproof vest 100 includes a first knitted layer 21 and a second knitted layer 22 that are alternately stacked. Here, the first knitting layer 21 is knitted by a plurality of first warp threads 211 and a plurality of first weft threads 212, and the knitting direction of each of the first warp threads 211 is a first knitting direction A; the second knitting direction The layer 22 is knitted by a plurality of second warp threads 221 and a plurality of second weft threads 222, and the weaving direction of each of the second warp threads 221 is a second weaving direction B.

In this embodiment, the angle between the second knitting direction B and the first knitting direction A may be between 10 degrees and 60 degrees, that is, the knitting direction of the first knitting layer 21 and the second knitting layer 22 with each other. The angle between them can be between 10 degrees and 60 degrees. For example, the angle between the second knitting direction B and the first knitting direction A may be 45 degrees, that is, the angle between the knitting directions of the first knitting layer 21 and the second knitting layer 22 may be 45 degrees.

In the ballistic fiber cloth in a general bulletproof vest, the knitting directions of each knitted layer are the same as each other. Compared to a general bulletproof vest, in this embodiment, since each group of ballistic resistant fiber cloth 13 includes two woven layers (ie, the first woven layer 21 and the second woven layer 22) which are alternately stacked, it has better performance. Impact resistance.

The following tests the impact resistance of the ballistic fiber cloth 13 of this embodiment. The bulletproof vests of Tests 3 and 4 all contained 6 mm shock-absorbing pads 11 (prepared from the composition of Example 1-1 above) and 42 sheets of ballistic fiber cloth (here, the one ballistic fiber cloth is It is a woven layer), the difference is that the woven directions of the woven layers of Test 3 are the same as each other, while the woven ballistic vest of Test 4 includes two sets of woven layers that are staggered and overlapped, and The angle between the knitting directions of the two knitting layers is 45 degrees.

The bulletproof vests of Tests 5 and 6 both contained 6 mm shock-absorbing pads 11 (prepared from the composition of Example 1-1 above) and 36 sheets of ballistic fiber cloth (herein, the sheet of ballistic fiber cloth is It is a woven layer), the difference is that the woven directions of the woven layers of Test 5 are the same as each other, while the woven body of Test 6 includes two sets of woven layers of ballistic fiber, and The angle between the knitting directions of the two knitting layers is 45 degrees.

The test method is to put the bullet-proof vest on the slime separately. The slime is used to simulate the chest tissue of the human body, and then the .44 McGonnon empty-point metal coated bullets (tests 3 and 4) are hit on the bullet-proof vests. 6 shooting positions P1 ~ P6; and hit 9 mm round head full metal coated bullets (tests 5, 6) to the corresponding 6 shooting positions P1 ~ P6 on the bulletproof vest. By measuring the depression depths of the sludges placed on the bulletproof vests 3 to 6 corresponding to the aforementioned six shooting positions P1 to P6, the impact resistance of these bulletproof vests can be compared. The test results are shown in Table III below. Table three

With reference to the test results in Table 3, when the bulletproof vest of Test 4 was fired by a .44 McGonnon empty-point metal coated bullet, the depression depth of the sludge at all shooting positions (P1 ~ P6) was shallower than the bulletproof vest of Test 3. Corrosion depth of sludge at all firing positions (P1 ~ P6); when the bulletproof vest of Test 6 was fired by a 9 mm round head full metal coated bullet, the depth of sludge at the firing positions P1 ~ P2 and P4 ~ P6, Both are shallower than the pit depth of the sludge at the shooting positions P1 ~ P2 and P4 ~ P6 corresponding to the bulletproof vest of Test 5. (The dent depth of the sludge at the shooting position P3 of Test 6 is the same as that of the sludge at the shooting position P3 of Test 5. ). It can be known that the ballistic vests of Tests 4 and 6 (the groups of ballistic-resistant fiber cloth include two woven layers that are staggered and overlapped, and the angle between the knitting directions of the two woven layers is 45 degrees) The impact resistance is better than the bulletproof vests of Tests 3 and 5 (the weaving directions of each knitted layer are the same).

In this embodiment, the ballistic fiber material is made of aromatic polyamide fiber, but in other embodiments, the ballistic fiber material may be aromatic polyamide fiber, ultra-high molecular weight polyethylene fiber or It is other materials with similar anti-elastic properties, and is not limited to this embodiment.

In one embodiment, each group of ballistic-resistant fiber cloths 13 includes two woven layers that are alternately overlapped, and the two woven layers are made by a one-piece weaving method. The fiber cloth woven through the one-piece weaving method is suitable for shaping and fixing, and can be made into a desired shape without cutting. In this way, when it is desired to use the elastic fiber cloth 13 to make a highly efficient buffer type bulletproof vest 100 suitable for women, it is not necessary to cut on the chest line portion, and the integrity of the elastic fiber cloth 13 can be maintained, thereby maintaining Ballistic vest 100 with high cushioning properties.

In one embodiment, the outer fabric 15 may be a splash-proof and wear-resistant structure, such as 100% nylon, which also has the advantage of being convenient to wear.

Following the above description, since the highly effective buffer type bulletproof vest according to the embodiment of the present invention includes a shock absorbing gasket, it further improves the shear resistance of the bulletproof vest and can effectively reduce the impact of the bullet on the human body. In some embodiments, each group of ballistic resistant fiber cloth includes two woven layers that are staggered and overlapped, and the two woven layers are made by a one-piece weaving method. When the high-efficiency buffer type bulletproof vest does not need to be cut at its chest line, the integrity of these elastic fiber cloths can be maintained, thereby maintaining the elasticity of the high-efficiency buffer type bulletproof vest.

The present invention has been disclosed in the foregoing with embodiments, but those skilled in the art should understand that this embodiment is only used to describe the present invention, and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the patent application.

100‧‧‧ High-efficiency buffer type bulletproof vest

11‧‧‧ Shock Absorber

13‧‧‧ ballistic fiber cloth

15‧‧‧ Outer fabric

21‧‧‧First weave layer

211‧‧‧First warp

212‧‧‧First parallel

22‧‧‧Second woven layer

221‧‧‧Second Warp

222‧‧‧ Second parallel

[Fig. 1] It is a partial schematic diagram of an efficient buffer type bulletproof vest according to an embodiment of the present invention. [Fig. 2] It is a partial decomposition diagram of two woven layers of a group of ballistic fiber cloth according to an embodiment of the present invention.

Claims (10)

A high-efficiency buffer-type bulletproof vest includes: a shock-absorbing pad; a plurality of ballistic-resistant fiber cloths arranged on the shock-absorbing pads; and an outer layer cloth arranged on the ballistic-resistant fiber cloths; The sheet system is a composite material including an energy dissipative colloid material, and each group of ballistic resistant fiber cloth includes two woven layers that are alternately stacked. The high-efficiency cushioning bullet-proof vest according to claim 1, wherein the composite material is prepared by kneading a group of components and foaming the composition, wherein the composition includes: a main substrate, which occupies the 50 ~ 80 wt% of the total weight of the composition, the main base material includes: vinyl acetate; ethylene / vinyl acetate copolymer; a sub-base material, which accounts for 10 ~ 40 wt% of the total weight of the composition, this time The substrate includes: polyethylene; styrene butadiene rubber; thermoplastic elastomer; and additives, which account for 1 to 20 wt% of the total weight of the composition, wherein the density of the shock absorbing gasket is between 0.20 to 0.50. The foaming ratio is between 20 and 40. The high-efficiency cushioning bullet-proof vest according to claim 2, wherein the secondary substrate further comprises a binary silicon oxide material, the binary silicon oxide material comprising: silicon dioxide particles; and polydimethylsiloxane. The high-efficiency buffering bullet-proof vest according to claim 2, wherein the additive is selected from the group consisting of a foaming agent, a foaming aid, a bridging agent, a bridging aid, color particles, and a filler. The high-efficiency buffer type bulletproof vest according to claim 2, wherein the thermoplastic elastic system is a styrene ethylene butene styrene block copolymer. The high-efficiency buffer type bulletproof vest according to claim 1, wherein the two knitted layers are a first knitted layer and a second knitted layer, and the first knitted layer is knitted with a plurality of first warp threads and a plurality of first weft threads. Therefore, the knitting direction of each of the first warp threads is a first knitting direction, and the second knitting layer is knitted by a plurality of second warp threads and a plurality of second weft threads, and the knitting direction of each second warp thread is A second knitting direction, and an angle between the second knitting direction and the first knitting direction is between 10 degrees and 60 degrees. The high-efficiency cushioning bulletproof vest according to claim 6, wherein an angle between the second knitting direction and the first knitting direction is 45 degrees. The high-efficiency cushioning bullet-proof vest according to claim 1, wherein the two woven layers are made of a one-piece weave. The high-efficiency buffer type bulletproof vest according to claim 1, wherein the outer fabric is a splash-proof and abrasion-resistant structure. The high-efficiency buffer type bulletproof vest according to claim 1, wherein the thickness of the shock absorbing gasket is between 6 mm and 9 mm.