JP2717695B2 - Bulletproof panel - Google Patents

Description

The present invention relates to a bulletproof panel. More specifically, the present invention relates to a bulletproof panel that prevents shotgun bullets, other bullets, and small fragments thereof from penetrating, and prevents and protects the human body, important equipment, and the like from being damaged.

"Prior Art" Conventionally, as such a bullet-resistant material, a single material, that is, the following various bullet-resistant plates formed as a single body has been used.

First, a woven fabric of high elastic polymer fiber such as polyethylene fiber and para-aramid fiber impregnated with resin is laminated and formed into a plate shape. Such a bullet-resistant plate,
It is known that the elastic force of a high elastic polymer fiber such as polyethylene fiber or para-aramid fiber, due to its high tensile strength, absorbs and attenuates the impact force of the bullet that has been hit, that is, the kinetic energy of the bullet. I have.

Second, bulletproof steel plates have been used. This bulletproof board
It is known that hardness and strength are excellent.

Third, ceramic plates have also been used as bulletproof plates. Fourth, polycarbonate plates have also been used.
This bulletproof plate is known for its excellent elasticity based on the hardness and strength of polycarbonate.

Further, in addition to the bullet-resistant plate constituted by such a single body, various bullet-resistant panels have recently been developed. That is, as disclosed in, for example, Japanese Patent Application Laid-Open No. 62-210397, a laminated bullet-resistant panel in which the above-described various single bullet-resistant plates or the like are laminated in a panel shape and thus have the characteristics thereof has recently been developed. Is being developed.

"Problems to be Solved by the Invention" By the way, the following problems have been pointed out in such conventional bulletproof boards and bulletproof panels.

First, the bullet-resistant plate of Conventional Example 1 is as follows. That is, high-elasticity polymer fibers such as para-aramid fibers are very expensive, and a large number of such fibers are laminated to improve the elasticity resistance.

Furthermore, such a high elasticity polymer fiber also has a problem in weather resistance, is inferior in durability against ultraviolet rays of the sun, weak against rainwater, etc., and even when impregnated with a resin,
It has been pointed out that it cannot be used by being exposed to the open air for a long period of time because of its poor durability against the ultraviolet rays of the sun.

Secondly, the bulletproof plate of Conventional Example 2 is as follows. That is, the bullet-resistant steel sheet has a defect that the weight is very heavy, which makes it inconvenient to use and inconvenient to handle.

Third, the bullet-resistant plate of Conventional Example 3 is as follows. That is, the ceramic plate is expensive and brittle, and it is difficult to form a ceramic plate having a larger area.

Fourth, the bulletproof plate of Conventional Example 4 is as follows. That is, it has been pointed out that the polycarbonate plate is expensive and is used in a considerable thickness for improving the elasticity resistance, so that there is a problem in terms of cost, and that it is heavy and inconvenient to handle. Furthermore, such a polycarbonate plate has a problem that its melting point is low, and its elasticity is impaired, for example, it is locally melted by the frictional heat of an impacted bullet, loses its hardness and strength, and may have a large hole. It was pointed out that there was a case that

Fifth, the bulletproof panel described above is as follows. That is, for example, a recently developed laminated ballistic resistant panel as disclosed in Japanese Patent Application Laid-Open No. 62-210397 has a complicated structure and is problematic in cost, and is generally heavy and very inconvenient to handle. Was pointed out.
In a conventional example, such a point was pointed out.

The present invention has been made in view of such circumstances, and has been made to solve the problems of the above conventional example.
By adopting a multi-layer structure in which woven fabric of high elasticity polymer fiber, honeycomb structure, support plate, etc. are combined in a predetermined order in view of its characteristics and functions, firstly, it has excellent elasticity resistance,
Secondly, it is excellent in cost, thirdly, it can be easily formed in a large area, fourthly, it is excellent in weather resistance, fifthly, it is lightweight. By filling the body with lightweight heat-resistant material,
In addition, it is possible to reliably reduce and prevent the damage of the support plate due to heat. In the second aspect, by buckling the cell wall of the honeycomb structure, seventhly, it is possible to further reduce the overall thickness. The aim is to propose a high-performance bulletproof panel.

"Means for Solving the Problems" The technical means of the present invention for achieving the object is as follows. First, in this bulletproof panel, from the front side to the rear side, a surface plate, a woven fabric of high elastic polymer fibers not impregnated with resin, a honeycomb structure, and a support plate,
It has a multilayer structure joined in order.

According to the first aspect, each cell of the honeycomb structure is filled with a lightweight heat-resistant material. Claim 2
In the above, at least a part of a cell wall forming each cell of the honeycomb structure is buckled.

"Operation" The bulletproof panel according to the present invention is constituted by such means, and operates as follows. First, the bulletproof panel according to claim 1 or 2 has a multilayer structure in which a surface plate, a woven fabric of high elastic polymer fibers, a honeycomb structure, a support plate, and the like are joined in this order from the front side. Become.

Therefore, firstly, the woven fabric of the high elastic polymer fiber which is not impregnated with the resin is particularly remarkable in the elongation deformation due to its high tensile strength, and the impact force received by the shot bullet, that is, the kinetic energy of the bullet, Absorb sufficiently and attenuate greatly.

Further, the absorption / attenuation of the kinetic energy of the bullet by the woven fabric is complemented by the air cushion property of the honeycomb structure located next, and is carried out without any trouble. In addition to these, the impact force dispersibility of the honeycomb structure causes the impact force received by the woven fabric, that is, the kinetic energy of the bullet, to be widely dispersed and further attenuated.

Secondly, the combination of such a woven fabric and the honeycomb structure makes it possible to extremely effectively attenuate the kinetic energy of the shot bullet. Therefore, the woven fabric can be used with a smaller thickness, such as by reducing the number of layers.

Third, since the whole is formed from the surface plate, the woven fabric of the high elasticity polymer fiber, the honeycomb structure, and the support plate, the configuration is simple, and molding of a large area is easy.

Fourth, weather resistance is excellent due to the surface plate being located on the front side.

Fifth, it is possible to reduce the thickness, for example, by reducing the number of layers of the woven fabric of the high elastic polymer fiber,
Combined with the light weight of the honeycomb structure, the overall weight is reduced.

The bulletproof panels according to claim 1 and claim 2 exhibit such first, second, third, fourth, fifth, etc. functions, respectively. If so, the following is in addition to the above.

That is, sixth, the honeycomb structure is filled with a lightweight heat-resistant material. Then, the frictional heat generated in the bullet by being hit on the surface plate or the woven fabric is widely diffused and strongly blocked by the presence of the lightweight heat-resistant material together with the heat dissipation of the honeycomb structure. Thus, damage to the next supporting plate due to frictional heat of the bullet is significantly reduced or prevented. Since this lightweight heat-resistant material is filled in each cell, it is filled uniformly in the honeycomb structure without uneven distribution even after the fact.

Furthermore, in the bulletproof panel according to claim 2,
In addition to the first, second, third, fourth, fifth, etc.,

That is, seventhly, in the honeycomb structure, the cell wall is at least partially buckled, and the thickness is reduced accordingly. Therefore, the thickness of the entire device is reduced without impairing the above-described operations, and handling and the like are facilitated.

"Examples" Hereinafter, the present invention will be described in detail based on examples shown in the drawings. First, prior to the description of the embodiment, a reference example serving as a premise thereof will be described.

FIG. 1 is a longitudinal sectional view of a reference example. That is, FIG. 1 shows a reference example for explaining the common points and assumptions of the bulletproof panel shown in FIGS. 2 and 3 which will be described later as an embodiment of the present invention. First, the configuration and the like will be described.

In the bulletproof panel of this reference example, a surface plate A, a woven fabric 1 of a high elastic polymer fiber, a honeycomb structure 2, and a support plate 3 were sequentially joined from the front side to the back side. It has a multilayer structure.

To describe these in detail, first, the woven fabric 1 of a high elastic polymer fiber is formed by a high elastic polymer fiber such as a polyethylene fiber and a para-aramid fiber without impregnating a resin or the like.
It is used as woven. And since this woven fabric state is used by laminating an appropriate number of sheets, elongation deformation based on its characteristic high tensile strength is particularly remarkable,
The impact force received by the received bullet P, that is, the kinetic energy of the bullet P can be sufficiently absorbed and greatly attenuated.

The honeycomb structure 2 such as a honeycomb core is formed of a planar aggregate of cells 5 in the form of a regular hexagon and other hollow columns formed by the cell walls 4. As the material, a thin plate of aluminum is typically used, but other thin plates of various metals and the like are appropriately selected and used according to the application. And
Both cell end faces of such a honeycomb structure 2 are joined to the woven fabric 1 and the support plate 3 by an adhesive or the like.

It is known that the honeycomb structure 2 has the following characteristics. In other words, first, the weight ratio strength is excellent,
It has high rigidity and strength as well as high lightness. or,
It has excellent flatness, is easy to mold, and is excellent in cost. Furthermore, the air layer in the cell 5 provides high heat dissipation and air cushioning properties, and the cell walls 4 provide a high impact force dispersibility, that is, a high cushioning property due to the cells 5 being gathered in a plane. I have.

As the support plate 3, a plate made of aluminum or other various light metals, resin, or the like is used. For example, a plate made of polycarbonate may be used. According to such a configuration, more excellent elasticity resistance is obtained. A bulletproof panel is obtained.

A surface plate A is joined to the outer surface, which is the front surface of the woven fabric 1. As the surface plate A, aluminum,
In addition, plate bodies of various light metals, resins, and the like are used. When a polycarbonate plate is used as the surface plate A, the bullet P has more excellent damping property of kinetic energy based on its hardness and strength, that is, more excellent elasticity resistance.

The above is the description of the configuration and the like of the reference example shown in FIG. Next, the operation and the like will be described.

The bulletproof panel prevents penetration of small bullets and other bullets P and small fragments thereof from the front side, thereby preventing and protecting the human body, important equipment and the like on the rear side from damage. And this bulletproof panel is, in order from the front side, a surface plate A,
It has a multilayer structure of a woven fabric 1 of high elastic polymer fiber, a honeycomb structure 2 and a support plate 3.

Therefore, the bulletproof panel of the reference example shown in FIG.
The following are the first, second, third, fourth, and fifth.

First, since the woven fabric 1 made of a high elastic polymer fiber is not impregnated with a resin, the high tensile strength is not impaired at all, and the elongation deformation based on the high tensile strength is particularly remarkable. Thus, the impact force that the woven fabric 1 receives by the bullet P that has been hit, that is, the bullet P
Kinetic energy is thereby sufficiently absorbed and greatly attenuated.

Further, the absorption / attenuation of the kinetic energy of the bullet P by the woven fabric 1 is complemented by the air cushion property which is the characteristic of the honeycomb structure 2 located next, and can be easily implemented without any trouble. That is, if a hard rigid body such as a metal plate is positioned next to the woven fabric 1, the high tensile strength of the high elastic polymer fiber of the woven fabric 1 is impaired, the elongation and deformation thereof become insufficient, and the kinetic energy of the bullet P is reduced. It is anticipated that the absorption of water will be insufficient. On the other hand, when the honeycomb structure 2 is located next to the woven fabric 1, such a situation is avoided due to the air cushion property.

Further, in addition to these, the impact received by the woven fabric 1, that is, the kinetic energy of the bullet P is widely dispersed and further attenuated by the impact force dispersibility, which is a characteristic of the honeycomb structure 2.

Second, the combination of the woven fabric 1 and the honeycomb structure 2 as described above allows the kinetic energy of the bullet P to be impacted to be:
It is very effectively attenuated. Therefore, the woven fabric 1 can be used with a smaller thickness, such as by reducing the number of layers. For example, this bulletproof panel
Compared to a conventional bullet-resistant plate made of a single woven high-elastic polymer fiber impregnated with resin, which has the same degree of elasticity,
The number of layers of the woven fabric 1 can be reduced, and the thickness thereof can be reduced.

Third, the bulletproof panel includes a surface plate A, a woven fabric 1 of a high elasticity polymer fiber, a honeycomb structure 2, a support plate 3,
, The configuration is simple. That is, the configuration is simpler than that of the conventional laminated ballistic-resistant panel, and it is not difficult to form a large-area one as in the conventional ballistic-resistant single-plate ceramic plate.

Fourth, since the surface plate A is located on the front side, the weather resistance is excellent. That is, the woven fabric 1 is made of a high elastic polymer fiber and thus has poor weather resistance. However, since the front surface of the woven fabric 1 is covered with the surface plate A, the whole bulletproof panel also has excellent weather resistance. That is, a woven fabric 1 of high elastic polymer fiber having poor weather resistance
Are covered with the surface plate A and are not directly exposed to the outside air.

Fifth, the woven fabric 1 made of a high elastic polymer fiber can be used with a reduced thickness, such as by reducing the number of laminations. The weight has been reduced.

The above is the description of the operation and the like of the bulletproof panel of the reference example shown in FIG. When such a bulletproof panel is attached to another structure or the like and used, mounting members such as bolts and brackets are used, and attachment and detachment and replacement thereof are easy.

FIG. 2 is a longitudinal sectional view showing an embodiment of the bulletproof panel according to the present invention, in which the honeycomb structure 2 is filled with a lightweight heat-resistant material 6.

Hereinafter, the embodiment of FIG. 2 will be described. In the bulletproof panel of this embodiment, a lightweight heat-resistant material 6 is provided in each cell 5 of the honeycomb structure 2 of the above-described reference example of FIG. Is filled. As the lightweight heat-resistant material 6, a ceramic fiber is typical, but asbestos, anti-fire stone, or the like may be used.

As described above, in the bulletproof panel of the embodiment shown in FIG. 2, since the honeycomb structure 2 is filled with the lightweight heat resistant material 6,
It looks like this: In other words, the bulletproof panel of the embodiment shown in FIG. 2 has the following sixth in addition to the above-described first, second, third, fourth, fifth and the like.

That is, the frictional heat generated in the bullet P by being hit on the sixth surface plate A and the woven fabric 1 of the high elastic polymer fiber is
In addition to the heat dissipating properties of the honeycomb structure 2 itself, the presence of the lightweight heat-resistant material 6 allows the honeycomb structure 2 to be widely diffused and strongly shut off. Therefore, damage to the next supporting plate 3 due to frictional heat of the bullet P is significantly reduced or prevented. For example, when a polycarbonate plate is used as the support plate 3, such a situation that the support plate 3 is melted by heat is reduced or prevented.

Since the lightweight heat-resistant material 6 is filled in each cell 5,
The honeycomb structure 2 is uniformly filled, and is filled without any uneven distribution even after the fact. The above is the second
It is description of the Example of a figure.

Next, FIG. 3 shows another embodiment of the bulletproof panel according to the present invention, and is a longitudinal sectional view of the embodiment in which the honeycomb structure 2 is buckled.

Hereinafter, the embodiment of FIG. 3 will be described. The bulletproof panel of this embodiment is partially different from the reference example of FIG. 1 described above, in that the cell walls 4 forming the cells 5 of the honeycomb structure 2 are different. Is at least partially buckled. That is, the cell wall 4 is entirely in the cell axis direction as shown in the illustrated example.
Alternatively, a part along the cell axis direction, that is, one end is buckled or crashed by the applied compressive force.
This buckling needs to be performed to such an extent that the impact force dispersibility, which is a characteristic of the honeycomb structure 2 described above, is not impaired, that is, it is not excessively buckled.

Further, instead of such an example shown in FIG. 3, the honeycomb structure 2 in which the cells 5 are filled with the lightweight heat-resistant material 6 as shown in FIG. Is also good. In this case, the light-weight heat-resistant material 6 is previously placed in the cell 5.
Care must be taken when filling to avoid filling too much. That is, after the fact, the air layer is sufficiently present in the cell 5 after the cell wall 4 has been buckled, and the honeycomb structure 2
It is necessary to adjust the filling amount of the lightweight heat-resistant material 6 so that the heat radiation property and the air cushion property, which are the characteristics of the above, are not impaired.

As described above, in the bulletproof panel of the embodiment shown in FIG. 3 and the like, since the cell wall 4 of the honeycomb structure 2 is at least partially buckled, the following results are obtained. In other words, the bulletproof panel of the embodiment shown in FIG.
In addition to the third, fourth, fifth, etc., it becomes the following seventh.

That is, seventh, the cell wall 4 is shorter by the amount of the buckling, and thus the thickness of the honeycomb structure 2 in the cell axis direction is reduced. Therefore, the entire bulletproof panel is thinned by the buckling without any impairment of the above-described operations and the like, and the handling and the like are easy. The above is the description of the embodiment in FIG.

In the embodiment of FIGS. 2 and 3 described above, the configuration, function, operation, and the like of each of the other members are the same as those described in the reference example of FIG. The description is omitted.

[Effects of the Invention] As described above, the bulletproof panel according to the present invention first includes a surface plate, a woven fabric of high-elasticity polymer fibers, a honeycomb structure, a support plate, and the like, in consideration of its characteristics and functions. The following effects are exhibited by adopting the multiple structures combined in order.

First, the combination of a woven fabric of high-elastic polymer fibers not impregnated with a resin and a honeycomb structure effectively attenuates the kinetic energy of an impacted bullet. Therefore, this bulletproof panel is extremely excellent in elasticity.

Secondly, since the material is excellent in elasticity as described above, the thickness of the expensive woven fabric of high elastic polymer fibers can be made thinner. Therefore, the bulletproof panel is particularly excellent in cost in view of the fact that the whole structure is simple and the manufacture is easy.

Third, this bulletproof panel is composed of a surface plate, a woven fabric, a honeycomb structure, a support plate, and the like, and the overall configuration is simple.
Molding of a large area is easy.

Fourth, weather resistance is excellent due to the surface plate being located on the front side. Thus, the bulletproof panel has a very high durability against ultraviolet rays of the sun, rainwater, and the like, and can be used by being directly exposed to the outside air for a long time.

Fifth, the combination of a woven fabric of high elastic polymer fibers and a honeycomb structure reduces the overall weight. Therefore, this bulletproof panel is easy to use and extremely easy to handle.

And in the bulletproof panel of claim 1,
In addition to the first, second, third, fourth, fifth, etc., the following effects are further exhibited.

Sixth, in this bullet-resistant panel, the honeycomb structure is filled with a lightweight heat-resistant material. Therefore,
Damage to the support plate due to frictional heat of the shot bullets is significantly reduced and prevented, so that the bulletproof panel is also excellent in elasticity from this aspect. Furthermore, the lightweight heat-resistant material is
Since the honeycomb structure is uniformly filled and is not unevenly distributed even after the fact, the bulletproof panel has excellent quality.

Further, in the bulletproof panel according to the second aspect,
In addition to the second, third, fourth, fifth, etc., the following effects are further exhibited.

That is, seventh, the honeycomb structure has a buckled cell wall, and thus has a reduced thickness. So this bulletproof panel is thinner and more compact than the overall thickness,
Also in this aspect, it is easy to use and easy to handle.

Thus, the effects exhibited by the present invention are remarkably large, such as eliminating the problems existing in this type of conventional example.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a reference example of a bulletproof panel. FIG. 2 is a longitudinal sectional view showing an embodiment of the bulletproof panel according to the present invention, in which the honeycomb structure is filled with a lightweight heat resistant material. FIG. 3 is a longitudinal sectional view showing another embodiment of the bulletproof panel according to the present invention, in which the honeycomb structure is buckled. DESCRIPTION OF SYMBOLS 1 ... Woven cloth 2 ... Honeycomb structure 3 ... Support plate 4 ... Cell wall 5 ... Cell 6 ... Lightweight heat resistant material A ... Surface plate P ... Bullet

Claims (2)

(57) [Claims] 1. A surface plate, from a front side to a back side,
A woven fabric of high-elastic polymer fibers not impregnated with a resin, a honeycomb structure, and a support plate have a multilayer structure in which the honeycomb structure is joined in order, and a light-weight structure is provided in each cell of the honeycomb structure. A bulletproof panel characterized by being filled with a heat resistant material. 2. A front plate from a front side to a rear side,
A cell wall that has a multilayer structure in which a woven fabric of high elastic polymer fibers not impregnated with a resin, a honeycomb structure, and a support plate are sequentially bonded, and forms each cell of the honeycomb structure. Means that at least part of it will be buckled,
Characteristic bulletproof panel.