JPH02254295A - Bullet-proof panel - Google Patents

Abstract

PURPOSE:To improve bullet-proof characteristics by a method wherein a highly resilient polymer fibrous woven plate immersed with resin, a honeycomb structure and a supporting plate are connected in this series from a front surface toward a rear surface. CONSTITUTION:A bullet-proof panel is of a multilayered structure in which a highly resilient polymer fibrous woven plate 1 immersed with resin, a honeycomb structure 2 and a supporting plate 3 are connected in this series from a front surface side toward a rear surface. This woven plate 1 is made such that a woven cloth of a highly resilient polymer fiber such as a polyethylene fiber and a para-aramid fiber or the like is immersed with resin. As a raw material of the honeycomb 2, an aluminum thin plate is typically used. In addition, as the supporting plate 3, plates of aluminum or other various light metal or resin or the like are used. With such an arrangement, a kinetic energy of a struck bullet P is effectively attenuated and bullet-proof characteristics of the plate can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to ballistic panels. That is, the present invention relates to a bulletproof panel that prevents the penetration of small fragments of hit rifle bullets and other bullets, and prevents and protects the human body and important equipment from damage caused by these fragments.

``Prior Art'' Conventionally, as such bulletproof materials, the following types of bulletproof machines made of a single material, that is, a single unit, have been used.

First, polyethylene fibers impregnated with resin.

A woven fabric made of highly elastic polymeric fibers such as para-aramid fibers was laminated into a plate shape. This type of bulletproof plate is based on the high tensile strength of highly elastic polymer fibers such as polyethylene fibers and rose aramid fibers (through elongation and deformation, it absorbs and attenuates the impact force of the bullet, that is, the kinetic energy of the bullet). It is known to have excellent ballistic resistance.

Second, bulletproof steel plates were used. This bulletproof plate is known to have excellent hardness and strength.

Thirdly, ceramic plates were also used as bulletproof machines.

Fourth, polycarbonate plates were used.

This bulletproof temporary material is known for its unusual ballistic resistance based on the hardening and strength of polycarbonate.

Furthermore, in addition to such single-piece bulletproof panels, various bulletproof panels have recently been developed. For example, as shown in Japanese Unexamined Patent Application Publication No. 61-210397, a laminated bullet-resistant panel has recently been developed in which the above-mentioned individual bullet-resistant materials are laminated into a panel shape, thereby combining the characteristics of the above. being developed.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out with such conventional bulletproof plates, bulletproof panels, etc.

First of all, the bullet resistance of Conventional Example 1 is as follows. That is, highly elastic polymeric fibers such as loose aramid fibers are very expensive, and because they have to be laminated in large numbers due to their ballistic resistance -J-, a major cost problem has been pointed out.

Secondly, the bulletproof plate of Conventional Example 2 is as follows. That is, bulletproof steel plates have the disadvantage that they are extremely heavy, making them difficult to use and inconvenient to handle.

Thirdly, the bulletproof plate of Conventional Example 3 is as follows.

That is, ceramic plates are expensive, brittle, and difficult to mold into larger areas.

Fourthly, the bullet resistance of Conventional Example 4 is as follows.

That is, it has been pointed out that polycarbonate plates are expensive and are used in a considerable thickness to improve ballistic resistance, which poses a cost problem and is heavy and inconvenient to remove.

Furthermore, such polycarbonate plates have the problem of a low melting point, which causes them to melt locally due to the frictional heat of the bullet that hits them, causing them to lose their hardness and strength, sometimes leaving large holes, and reducing their bullet resistance. It was pointed out that it could be stored away.

Fifthly, regarding the above-mentioned bulletproof panel, it is as follows.

In other words, recently developed laminated bulletproof panels, such as those shown in Japanese Patent Application Laid-Open No. 62-210397, have a complicated structure and are problematic in terms of cost. It was pointed out that it was very inconvenient.

This point was pointed out in the conventional example.

In view of these circumstances, the present invention has been made to solve the problems of the conventional example, and is a method of combining a woven cloth plate of highly elastic polymer fibers impregnated with resin, a honeycomb structure, and a support plate. The purpose of this project is to propose a high-performance bullet-resistant panel that has a multilayer structure, is lightweight, has excellent ballistic resistance and cost, and can be easily formed into large-area panels. Furthermore, by filling the honeycomb structure with a lightweight heat-resistant material, damage to the support plate due to heat can be reduced, and by buckling the cell walls of the honeycomb structure, the overall thickness can be made thinner. The aim is also to produce high-performance bullet-resistant panels that can be used in a variety of ways.

] Means for solving Section 1 J The technical means of the present invention to achieve this objective are as follows.

First, the bulletproof panel of claim 1 has a multilayer structure in which a resin-impregnated woven fabric plate of highly elastic polymer fibers, a honeycomb structure, and a support plate are joined in order from the front side to the back side. 9. Also, in claim 2, in the bulletproof panel of claim 1,
Each cell of the honeycomb structure is filled with a lightweight heat-resistant material.

Furthermore, according to claim 3, in the bulletproof panel according to claim 1 or 2, at least a portion of the cell wall forming each cell of the honeycomb structure is buckled.

"Function" Since the bulletproof panel according to the present invention is comprised of such means, it functions as follows.

This bullet-resistant panel has a multilayer structure including, in order from the front side, a woven cloth plate made of highly elastic polymeric fibers impregnated with resin, a honeycomb structure, and a support plate.

First, a woven cloth board made of highly elastic polymer fibers impregnated with resin absorbs the +ii 'J force received by a bullet, that is, the kinetic energy of the bullet, through its elongation and deformation due to its high tensile strength. to attenuate it.

Furthermore, due to its impact force dispersion properties, the honeycomb structure located next widely disperses and further attenuates the impact force, that is, the kinetic energy of the bullet, received by the woven fabric plate.

Secondly, the combination of the woven cloth plate and the honeycomb structure allows the kinetic energy of the bullet to be attenuated extremely effectively. Therefore, the woven cloth plate can be used with a thinner thickness, such as by reducing the number of layers of woven cloth.

Thirdly, since the entire structure is made up of the woven cloth plate, the honeycomb structure, and the support plate, the structure is simple and it is also easy to mold a large area.

Fourth, it is possible to reduce the thickness of the woven cloth plate made of highly elastic polymer fibers impregnated with resin, and this combined with the lightness of the honeycomb structure reduces the overall weight. There is.

In addition to the above, the bulletproof panel according to claim 2 also has the following features.

That is, the honeycomb structure is filled with a lightweight heat-resistant material. The frictional heat generated by the bullet that hits the bullet is widely diffused and strongly blocked by the heat dissipation properties of the honeycomb structure and by the presence of the second lightweight heat-resistant material. Therefore, damage to the next supporting plate due to the frictional heat of the bullet is significantly reduced. Note that since the lightweight heat-resistant material is filled into each cell, it is filled uniformly into the honeycomb structure without being unevenly distributed.

Furthermore, the bulletproof panel according to claim 3 has the following features in addition to the above.

That is, in the honeycomb structure, at least a portion of the cell walls are buckled and the thickness thereof is reduced. Therefore, the thickness of the entire device is reduced without impairing the above-mentioned functions in any way, making it easier to handle.

"Example" The present invention will be described in detail below based on the example shown in the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

First, its configuration etc. will be explained.

This bullet-resistant panel has a multilayer structure in which a woven fabric board 1 made of highly elastic polymeric fibers impregnated with resin, a honeycomb structure 2, and a support plate 3 are joined in order from the front side to the back side. I have it.

To explain these in detail, the woven cloth plate 1 made of highly elastic polymer fibers impregnated with resin is manufactured by impregnating a woven fabric of high elastic polymer fibers such as polyethylene fibers and rose aramid fibers with resin. can get. And the woven fabric is
It is used by laminating an appropriate number of sheets, and has excellent ballistic resistance by absorbing and attenuating the impact force received by the bullet P, that is, the kinetic energy of the bullet P, by elongation deformation based on its characteristic high tensile strength. It is known that rose aramid fibers have especially excellent ballistic resistance.

A honeycomb structure 2 such as a honeycomb core is composed of a planar assembly of regular hexagonal or other hollow columnar cells 5 formed by cell walls 4 . As the material, a thin plate of aluminum is typically used, but thin plates of various other metals can also be selected and used as appropriate depending on the purpose. Both cell ends of the honeycomb structure 20 are joined to the above-mentioned woven fabric 1 and the support plate 3 using an adhesive or the like.

It is known that the honeycomb structure 2 has the following characteristics. That is, first of all, it has excellent IT specific strength, high lightness, and high rigidity and strength. In addition, it has excellent surface deformability and is easy to mold, and is also excellent in terms of cost.Furthermore, the air layer within the cells 5 provides high heat dissipation and air traction properties, and the cells 5 are assembled in a flat manner due to the cell walls 4. This provides high impact force dispersion, or cushioning properties.

As the support plate 3, aluminum and various other light metals,
Although a plate made of resin or the like is used, for example, a plate made of polycarbonate may also be used. According to such a configuration,
A bullet-resistant panel with better bullet resistance can be obtained.

In the illustrated embodiment, a surface plate A having excellent weather resistance is bonded to the front outer surface of the woven cloth plate 1 described above. In other words, since the woven fabric board 1 is made of highly elastic polymer fibers, it has poor weather resistance, but depending on the purpose of use, covering the front surface with a surface plate may improve the weather resistance of the entire bulletproof panel. improves. In other words, since the woven fabric board 1 made of highly elastic polymer fibers is not directly exposed to the outside air, the bulletproof panel of the illustrated embodiment has excellent durability against the sun's ultraviolet rays and rainwater, so it can be used even in places where it is directly exposed to the outside air. The advantage is that it can be done.

As such a surface plate A, a plate made of aluminum or other various light metals, resin, or the like is used.

Note that when a polycarbonate plate is used as the surface plate A, there is an advantage that it has excellent weather resistance as well as better attenuation of the kinetic energy of the bullet P based on its hardness and strength, that is, better ballistic resistance.

The above is the explanation of the configuration, etc.

The operation etc. will be explained below.

Bullet-resistant panels are designed to protect against small bullets and other bullets P from the front side.
It prevents those small fragments from penetrating, thereby preventing and protecting the human body 1 important equipment on the back side from damage. This bulletproof panel has a multilayer structure consisting of a woven cloth plate 1 made of highly elastic polymeric fibers impregnated with resin, a honeycomb structure 2, and a support plate 3 in order from the front side.

Therefore, this bulletproof panel is manufactured by the following first method. Second. 3rd, 4th
It becomes like this.

First, a woven cloth board 1 made of highly elastic polymer fiber impregnated with resin.
absorbs and attenuates the impact force received by the bullet P hit from the front side, that is, the kinetic energy of the bullet P, by elongation deformation based on its high tensile strength. Further, the honeycomb structure 2 located next also widely disperses and further attenuates the impact force received by the woven fabric 1, that is, the kinetic energy of the bullet P, due to its impact force dispersion properties.

Second, the combination of the resin-impregnated high elastic polymer fiber woven cloth plate l and the honeycomb structure 2,
The kinetic energy of the hit bullet P is attenuated extremely effectively. Therefore, the woven cloth plate 1 made of highly elastic polymeric fiber impregnated with resin can be used by reducing its thickness by reducing the number of layers of woven cloth to be laminated. For example, this bullet-resistant panel is made of a woven fabric (the anti-bullet is laminated) compared to a conventional bullet-resistant panel with the same degree of anti-bullet resistance, which is made of a single woven fabric board made of highly elastic polymer fibers impregnated with resin. The number of woven fabrics can be reduced and the thickness can be reduced.

Third, a woven cloth board 1 made of highly elastic polymer fiber impregnated with resin.
Since the entire structure is formed from the honeycomb structure 2 and the support plate 3, the structure is simple and it is easy to mold a large area. In other words, the structure is simpler than the conventional laminated bulletproof panel, and unlike the conventional bulletproof plate made of a single ceramic plate, it is not difficult to mold a large area.

Fourth, a woven cloth board 1 made of highly elastic polymer fiber impregnated with resin.
The honeycomb structure 2 can be used with a thin comb, and combined with the lightness which is a characteristic of the honeycomb structure 2, the overall weight is reduced.

The above is the explanation of the operation, etc.

When using such bulletproof panels attached to other structures, mounting members such as bolt brackets are used.
It is easy to attach, detach, and replace.

"Others" Next, FIG. 2 is a longitudinal sectional view showing an example in which the honeycomb structure 2 is filled with a lightweight heat-resistant material 6.

This will be explained below. In this bulletproof panel, each cell 5 of the honeycomb structure 2 is filled with a lightweight heat-resistant material 6. A typical example of the lightweight heat-resistant material 6 is ceramic fiber, but other materials such as asbestos, flint-resistant stone, etc. may also be used.

In this way, the bulletproof panel shown in FIG. 2 has the honeycomb structure 2 filled with the lightweight heat-resistant material 6, so the bulletproof panel is as follows.

That is, the frictional heat generated in the bullet P by being hit by the resin-impregnated woven cloth board 1 made of highly elastic polymer fibers is absorbed not only by the heat dissipation properties of the honeycomb structure 2 itself but also by the presence of the lightweight heat-resistant material 6. It is widely spread and strongly blocked. Therefore, damage to the next supporting plate 3 due to the frictional heat of the bullet P is significantly reduced. For example, if a polycarbonate plate is used as the support plate 3, the possibility of melting due to the heat is reduced.

Note that since the lightweight heat-resistant material 6 is filled into each cell 5, it is filled uniformly into the honeycomb structure 2, and even after the fact, it is filled as it is without being unevenly distributed.

The above is an explanation of the example shown in FIG.

Next, FIG. 3 is a longitudinal sectional view showing an example in which the honeycomb structure 2 is buckled.

This will be explained below. In this bulletproof panel, at least a portion of the cell walls 4 forming each cell 5 of the honeycomb structure 2 is buckled. That is, as shown in the illustrated example, the entire cell wall 4 in the cell axis direction, or a portion along the cell axis direction, that is, one end, is buckled or crushed by the applied compressive force. This buckling is required to be performed to an extent that does not impair the impact force dispersion, which is a characteristic of the honeycomb structure 2 described above, that is, to an extent that does not cause excessive buckling.

Alternatively, the honeycomb structure 2 in which the cells 5 are filled with a lightweight heat-resistant material 6 as shown in FIG. 2 may have its cell walls 4 buckled. In this case, when filling the lightweight heat-resistant material 6 into the cell 5 in advance, care must be taken not to overfill it. In other words, after the fact, cell wall 4
The filling amount of the lightweight heat-resistant material 6 is adjusted so that there is a sufficient air layer in the buckled cells 5 and the heat dissipation and air traction properties, which are the characteristics of the honeycomb structure 2 described above, are not impaired. It is necessary.

Now, in the bulletproof panel shown in FIG. 3, the cell walls 4 of the honeycomb structure 2 are buckled at least in part, so
It becomes as follows. That is, the cell walls 4 that are buckled in this way are shortened (that is, the thickness of the honeycomb structure 2 in the cell axis direction is thinner. Therefore, the entire bulletproof panel is also shortened).
The thickness has been reduced and handling has become easier without any loss in the above-mentioned operations.

The above is an explanation of the example shown in FIG.

In the examples shown in FIGS. 2 and 3 described above, the configuration 1 functions and operations of other members are the same as those described in 1 above.
Since it is similar to that explained in the example of the figure, the same reference numerals are given and the explanation thereof will be omitted.

"Effects of the Invention" As explained above, the bulletproof panel according to the present invention has a multilayer structure consisting of a woven cloth board made of highly elastic polymer fibers impregnated with resin, a honeycomb structure, and a support board. , has the following effects.

First, the combination of the resin-impregnated woven plate of high modulus polymer fibers and the honeycomb structure effectively attenuates the kinetic energy of the struck bullet. This bullet-resistant panel has extremely excellent bullet resistance.

Second, since it has excellent ballistic resistance, the thickness of the expensive woven fabric board made of high elastic polymer fibers can be made thinner. Therefore, this bulletproof panel has a simple overall structure and is easy to manufacture, making it particularly cost effective. Also, it is easy to mold large area products.

Thirdly, the overall weight is reduced by the combination of the resin-impregnated woven fabric plate of highly elastic polymeric fibers and the honeycomb structure. Therefore, this bulletproof panel is very convenient to use and extremely easy to handle.

Next, the bulletproof panel according to the second aspect of the present invention exhibits the following effects in addition to the above-mentioned effects.

In other words, since the honeycomb structure is filled with lightweight heat-resistant material, damage to the support plate due to the frictional heat of the bullet that hits it is significantly reduced, and this bullet-resistant panel has excellent bullet resistance from this aspect as well. There is.

Furthermore, this bullet-resistant panel is also excellent in quality, as the lightweight heat-resistant material is uniformly filled into the honeycomb structure and does not become unevenly distributed after the process.

In addition to the above-mentioned bulletproof panel, the bulletproof panel of claim 3 exhibits the following effects.

That is, since the cell walls of the honeycomb structure are buckled, the thickness thereof becomes thinner. Therefore, this bulletproof panel has a smaller overall thickness and is more compact, making it convenient to use and easy to handle.

In this way, the problems that existed in this type of conventional example are completely eliminated, and the effects of the present invention are remarkable and great.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a bulletproof panel according to the present invention. FIG. 2 is a longitudinal sectional view showing an example in which the honeycomb structure is filled with a lightweight heat-resistant material. FIG. 3 is a longitudinal cross-sectional view showing an example of the honeycomb structure in which the honeycomb structure is buckled. l... 2... 3... 4... 5... 6... A... P... Woven cloth board honeycomb structure support plate Cell wall cell Lightweight heat-resistant material surface plate Bullet application Person Showa Aircraft Industry Co., Ltd. Agent Patent Attorney Nobuo Goshimoto

Claims (3)

[Claims] (1) It has a multilayer structure in which a resin-impregnated woven fabric plate of highly elastic polymer fibers, a honeycomb structure, and a support plate are joined in order from the front side to the back side. Features a bulletproof panel. (2) The bulletproof panel according to claim 1, wherein each cell of the honeycomb structure is filled with a lightweight heat-resistant material. (3) The cell walls forming each cell of the honeycomb structure are:
The bulletproof panel according to claim 1 or claim 2, wherein at least a portion thereof is buckled.