JPH02254296A - Bullet-proof panel - Google Patents

Abstract

PURPOSE:To improve anti-bullet characteristics by a method wherein a surface plate, a high resilient polymer fibrous woven cloth, a honeycomb structure and a supporting plate are connected in this series from a front side toward a rear side. CONSTITUTION:A surface plate A, a highly resilient polymer fibrous woven cloth 1, a honeycomb structure 2 and a supporting plate 3 are connected in this series from a surface side toward a rear surface side so as to form a multilayered structure. This highly resilient polymer fibrous woven cloth 1 is made such that highly resilient polymer fiber 1 such as polyethylene fiber and para-aramide fiber or the like are used without being immersed with resin or the like while the woven fabric is being applied as it is. As the front surface plate A, plates of aluminum or other various light metal and resin are used. With such an arrangement, a kinetic energy of a struck bullet P can be effectively attenuated and anti-bullet characteristics can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to ballistic panels. In other words, it relates to a bulletproof panel that prevents small fragments of bullets and other bullets from penetrating the body and protects the human body and other important equipment from damage caused by them. Conventionally, as bulletproof materials, the following types of bulletproof plates made of a single material have been used.

First, polyethylene fibers impregnated with resin.

A sheet made by laminating fabrics made of highly elastic polymeric fibers such as para-aramid fibers was used. This type of bulletproof plate is capable of absorbing and attenuating the impact force of a bullet, that is, the kinetic energy of the bullet, through elongation and deformation based on the high tensile strength of highly elastic polymer fibers such as polyethylene fibers and rose aramid fibers. It is known for its 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 plates.

Fourth, polycarbonate plates were used.

This bulletproof board is known for its excellent bulletproof properties based on the hardness and strength of polycarbonate.

Furthermore, in addition to such single-piece bulletproof panels, various bulletproof panels have recently been developed. That is, for example, as shown in Japanese Patent Application Laid-Open No. 62-210397,
Recently, a laminated bullet-resistant panel has been developed in which the above-mentioned individual bullet-resistant materials are laminated into a panel shape, thereby combining the characteristics of these panels.

[Problems to be Solved by the Invention] By the way, the following problems have been pointed out in 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 since a large number of them are laminated in order to improve the ballistic resistance, a major cost problem has been pointed out. Furthermore, such high-elastic polymer fibers also have problems with weather resistance, as they have poor durability against the sun's ultraviolet rays and are weak against rainwater, etc., and even when impregnated with resin, they are still susceptible to the sun's ultraviolet rays. It has been pointed out that the product has poor durability and cannot be used for long periods of time when exposed to air.

Secondly, the bullet resistance of the conventional example 2 is as follows. That is, bulletproof steel plates have a drawback in that they are extremely heavy, making them difficult to use and inconvenient to handle.

Thirdly, regarding the bullet resistance of Conventional Example 3, there are the following seven points:
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 handle.

Furthermore, such polycarbonate plates have the problem of a low melting point, which causes them to melt locally due to the B vapor 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.

That is, 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, and are generally heavy and extremely inconvenient to handle. It was pointed out that.

This point was pointed out in the conventional example.

In view of the above circumstances, the present invention has been made to solve the problems of the conventional methods described above. The purpose of the present invention is to propose a high-performance bullet-resistant panel that is lightweight, has excellent ballistic resistance and cost, and has excellent weather resistance and can be easily formed into large-area panels. Soshi'C
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 purpose of this project is to propose a high-performance bulletproof panel that can

"Means for Solving the Problem" The technical means of the present invention to achieve this object are as follows.

First, the bulletproof panel of claim 1 has a multilayer structure in which a surface plate, a woven fabric of high elastic polymer fibers, a honeycomb structure, and a support plate are joined in order from the front side to the back side. Become.

Further, 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, in a third aspect of the present invention, in the bulletproof panel of the first or second aspect, 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 surface plate, a woven fabric of highly elastic polymer fibers, a honeycomb structure, and a support plate.

First, woven fabrics made of high-modulus polymer fibers that are not impregnated with resin are particularly prone to elongation and deformation due to their high tensile strength. Sufficiently absorbs and greatly attenuates.

Further, the absorption and attenuation of the kinetic energy of the bullet by the woven fabric is complemented by the air action properties of the honeycomb structure located next, and can be carried out without any hindrance.

In addition to these, due to the impact force dispersion of the honeycomb structure,
The impact force experienced by the fabric, ie the kinetic energy of the bullet, is widely dispersed and further attenuated.

Secondly, the combination of the woven fabric and the honeycomb structure allows the kinetic energy of a bullet to be attenuated very effectively. Therefore, the woven fabric can be used with a thinner thickness, such as by reducing the number of laminated sheets.

Thirdly, since the entire structure is made up of a surface plate, a woven fabric made of highly elastic polymeric fibers, a non-lambda nicomb structure, and a support plate, the structure is simple and it is also easy to mold objects with large areas. .

Fourthly, the surface plate is located on the front side, so it has excellent weather resistance. In addition, it is possible to reduce the thickness of the highly elastic polymer fiber woven fabric by reducing the number of laminated sheets, etc., and combined with the lightness of the honeycomb structure, the overall weight is reduced.

In addition to the above, the bulletproof panel of claim 2 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 as well as by the presence of this 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 surface plate A, a woven fabric 1 of highly elastic polymer fibers, a honeycomb structure 2, and a support plate 3 are joined in order from the front side to the back side. It becomes.

To explain these in detail, first, the woven fabric 1 of high elastic polymer fibers is a fabric in which high elastic polymer fibers such as polyethylene fibers and rose aramid fibers are used in a woven fabric state without being impregnated with resin or the like. There is.

The woven fabric is used by laminating an appropriate number of sheets, and its elongation deformation due to its characteristic high tensile strength is particularly remarkable, and it can sufficiently absorb the impact force received by the bullet P, that is, the kinetic energy of the bullet P. can be greatly attenuated.

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 other harmful metals can also be selected and used as appropriate depending on the purpose. Both cell ends of the honeycomb structure 2 are respectively bonded to the 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 strength to weight ratio, and has high rigidity and strength as well as high lightness. Furthermore, it has excellent planar accuracy, is easy to mold, and is excellent in terms of cost. Furthermore, the air layer within the cells 5 provides high heat dissipation and air cushioning properties, and the cell walls 4 provide a planar collection of cells 5, providing high impact force dispersion, that is, 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.

A surface plate A is bonded to the front outer surface of the woven fabric I. As the surface plate A, a plate made of aluminum, laminate or other various light metals, resin, or the like is used. If a polycarbonate plate is used as the surface plate A, it will have excellent weather resistance as well as the ability to attenuate the kinetic energy of the bullet P based on its hardness and strength, that is, its 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 these small fragments from penetrating, thereby preventing and protecting the human body 2 important equipment on the back side from damage. This bulletproof panel has a multilayer structure including, in order from the front side, a surface plate A, a woven fabric 1 of high elastic polymer fibers, a honeycomb structure 2, and a support plate 3.

Therefore, this bulletproof panel is manufactured by the following first method. Second. 3rd 4th
First, since the woven fabric 1 made of highly elastic polymeric fibers is not impregnated with resin, its high tensile strength is not impaired in any way, and elongation deformation due to the high tensile strength is particularly noticeable. The impact force, that is, the kinetic energy of the bullet P, which the woven fabric 1 receives from the hit bullet P is thereby sufficiently absorbed and greatly attenuated.

Furthermore, the absorption and attenuation of the kinetic energy of the bullet P by the woven fabric 1 is caused by the honeycomb structure 2 located next.
It is complemented by the air action characteristic of , and can be easily implemented without any problems. In other words, if a hard rigid body such as a metal plate is placed next to the woven fabric 1, the high tensile strength of the highly elastic polymer fibers of the woven fabric 1 will be impaired, and the elongation and deformation thereof will be insufficient, causing the movement of the bullet P. It is expected that energy absorption will be insufficient. On the other hand, the honeycomb structure 2 is the woven fabric 1.
When placed next to the air cooker, such a situation is avoided due to its air cooking properties.

In addition, due to the impact force dispersion characteristic of the honeycomb structure 2, the impact received by the woven fabric 1, that is, the kinetic energy of the bullet P, is widely dispersed and further attenuated.

Second, the combination of the woven fabric 1 and the honeycomb structure 2 allows the kinetic energy of the bullet P to be attenuated extremely effectively.

Therefore, the woven fabric 1 can be used in a thinner manner, such as by reducing the number of laminated sheets.

For example, this bullet-resistant panel has a higher number of layers of woven fabric 1 than a conventional bullet-resistant panel made of a single woven board of highly elastic polymer fibers impregnated with resin, which has the same level of bullet resistance. The thickness can be reduced to a minimum.

Thirdly, this bullet-resistant panel has a simple structure because it is entirely formed from the surface plate A): the woven fabric 1 of highly elastic polymeric fibers, the honeycomb structure 2, and the support plate 3. In other words, the structure is simpler than the conventional laminated bulletproof panel, and it is not difficult to mold a large area like the conventional bulletproof plate made of a single ceramic plate.

Fourth, because the surface plate A is located on the front side, the weather resistance is poor. Since it is covered with the surface plate A, the entire bulletproof panel has excellent weather resistance.In other words, the woven fabric 1 of high elastic polymer fiber, which has poor weather resistance, is covered and cannot be directly exposed to the outside air. There isn't.

In addition, the woven fabric 1 made of highly elastic polymeric fibers can be used by reducing its thickness by reducing the number of laminated sheets, and combined with the lightweight nature of the honeycomb structure 2, the overall weight can be reduced. has been done.

The above is the explanation of the operation, etc.

Note that when such a bulletproof panel is attached to another structure or the like, attachment members such as bolts and brackets are used, and attachment/detachment, replacement, etc. thereof are easy.

"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 hitting the surface plate A and the woven fabric 1 made of highly elastic polymer fibers is widely diffused 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. and is 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 chances of it melting due to its death are 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 is filled as it is without being unevenly distributed after the fact. .

Next, FIG. 3 is a cross-sectional view of a fir tree 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. 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 thereof, 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 layer 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-cunction properties, which are the characteristics of the honeycomb structure 2 described above, are not impaired. It is necessary to keep it.

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 various operations described above are not affected in any way, and the thickness is reduced, making handling easier.

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

In addition, in the examples shown in FIGS. 2 and 3 explained above, the structure 2 functions and operations of other members are the same as in the above-mentioned section 1.
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 of a surface plate, a woven fabric of high elastic polymer fibers, a honeycomb structure, and a support plate. be effective.

First, the combination of the honeycomb structure and the woven fabric of highly elastic polymer fibers not impregnated with resin effectively attenuates the kinetic energy of the bullet. This bullet-resistant panel has extremely excellent bullet resistance.

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

Thirdly, the surface plate is located on the front side, making it highly weather resistant.As a result, this bulletproof panel is durable and strong against the sun's ultraviolet rays and rainwater, and can be used directly exposed to the outside air for long periods of time. It is. In addition, the combination of the highly elastic polymer fiber woven fabric and the honeycomb structure reduces the overall weight, making this bulletproof panel 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. ■... 2... 3... 4... 5... 6... A... P... Woven fabric honeycomb structure support plate Cell wall section J and lightweight heat-resistant material surface plate Bullet Figure 1-f

Claims (3)

[Claims] (1) It has a multilayer structure in which a surface plate, a woven fabric of high elastic polymer fibers, a honeycomb structure, and a support plate are joined in order from the front side to the back side. 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.