JP3423982B2 - Cushion with blade and bulletproof function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention does not require the burden of constant wear for the purpose of crime prevention and serves as a shield capable of exhibiting blade-proof and bulletproof functions in an emergency. It relates to cushions.

[0002]

2. Description of the Related Art Highly-strength fibers such as aramid fibers typified by polyparaphenylene terephthalamide, high molecular weight polyethylene fibers, or polyparaphenylene benzobisoxazole fibers are used for crime prevention by blades and bullets. A bulletproof vest made of a high-density woven fabric has been developed and is used as a bulletproof vest with excellent wear resistance and superior in bullet resistance compared to metal plates. And as such a bulletproof vest component, Japanese Patent Publication No. 5-58
No. 449, Japanese Patent Publication No. 3-502431, Japanese Patent Laid-Open No. 8-188654, and Japanese Patent Publication No. 2000-514.
As disclosed in Japanese Patent No. 543, a bulletproof vest and the like using a sheet-like substance having a structure (UD structure) in which the high-strength fibers are arranged substantially parallel to each other in a matrix resin in the same direction have been developed. , Its performance is highly evaluated. However, the above-mentioned protective materials are used for the arrest of violent criminals, the suppression of mayhem, and the escort of important persons and important properties.
This item is worn only when carrying out a mission assuming special conditions and conditions that are likely to be hit or badly attacked, and not to be used in daily normal working or living environments.

[0003]

[Problems to be solved by the invention] In recent years, the deterioration of public security in Japan has been accompanied by arrests of thugs, suppression of mayhem, and important persons.
Employees such as financial institutions that handle money, supermarkets, convenience stores, pachinko prize exchanges, etc. and cash transport vehicle drivers, regardless of engaging in dangerous missions such as escorting important properties, will not be less likely to receive bullets and bad blades. As mentioned above, it is not possible to wear protective gear (blade-proof / ballistic vest) for daily work, and in case of emergency, it is a universal item that anyone who protects themselves can use it as a universal item. The security environment has become highly demanding, and there is a strong demand for the development of protective equipment that can protect people and have the opportunity to make emergency calls.

Therefore, as a result of various examinations and investigations, we have investigated and investigated whether or not there is a daily-use item that anyone can use at all times without any burden and always put it in their daily lives, and in which members with blade-proof and bullet-proof ability can be put. Focusing on the fact that all of these necessary conditions can be satisfied with a cushion, the present invention has been accomplished based on the idea of preparing a member having a blade-proof and bullet-proof ability in the cushion of the cushion. In addition, as a reminder, futons, cushions, pads, and blankets that also use aramid fibers are disclosed in Japanese Patent Application Laid-Open Nos. 1-110393 and 2-269.
75, JP-A-3-261412, JP-A-3
It can be seen in Japanese Patent Publication No. 94168, etc., but these are all related to flame-retardant duvets, flame-retardant cushions, flame-retardant blankets, etc. that utilize the flame-retardant properties of aramid fibers, and are intended for blade-proofing and bullet-proofing. The invention has nothing to do with any of the ideas, purposes, effects, and configurations of the invention.

[0005]

The present invention has succeeded in solving the problems by forming a cushion having the structure described in the claims and using it as a protective material.
That is, 1. A structure comprising a combination of a cushion material layer used for forming cotton cotton or a cushion and a woven fabric laminate layer obtained by laminating a plurality of woven fabrics made of high-strength fibers having a tensile strength of 20 g / d or more is used. Layers or three layers are laminated, and a cotton or a cushion material layer used for forming a cushion is arranged on the lowermost layer of the laminate, and the structure is covered with a cushion forming skin. It is applied to a cushion with a blade and bulletproof function.

2. A fabric composed of the high-strength fibers defined in claim 1 has a fabric weight of 100 to 400 g / m ² , and is a fabric laminate having 6 to 15 layers of the fabric laminated. A cushion having a blade-proof / ballistic-proof function in which the layers of the constituent fabrics are kilted or spot-joined. 3. 3. A blade-proof / ballistic-proof structure having a structure according to claim 1 or 2, wherein the woven fabric laminate layers composed of high-strength fibers are laminated so that the constituent fiber arrangement direction of the woven fabric constituent structure is shifted by 45 °. A cushion with a function. 4. A cushion having a blade-proof and bulletproof function, which has the structure according to claim 1 to 3, wherein the high-strength fiber is an aramid fiber. It succeeded in solving the problem and achieving the purpose.

The constitution of the present invention and the effects based on the constitution will be described in more detail below. (1) The cushion, which is a protective material for blade and bulletproof in the present invention, is used by financial institutions such as banks and various other companies. Employees such as offices and supermarkets / convenience stores, taxi crews, etc. can comfortably and universally use everyday cushions in workplaces where they may encounter danger, and they are no different from conventional cushions, and There is no difference in appearance, and it does not impose a burden on wear or activity caused by wearing, and it can be quickly used as a protective material (shield) in an emergency, and has enough space for making an emergency call. And can give a sufficient effect for protection.

(2) The basic construction of the blade / bulletproof cushion of the present invention is, as defined in claim 1, 20 g /
A combination of a woven fabric laminate layer in which a plurality of woven fabrics made of high-strength fibers having a tensile strength of d or more is laminated, and a cushioning material layer used for cushioning which is also effective in absorbing impact when hit. The structure is laminated in a single layer to three layers, and a cotton cotton or a cushion material layer used for forming a cushion is arranged on the uppermost bottom layer of the structure laminate, and the structure is further covered with a cushion for forming a cushion. Since it is a made-up product, it has extremely high blade-proof and bullet-proof performance, and since it is not a thing to wear and adhere to the body like a bulletproof vest, in the bulletproof vest, the blade-proof and bulletproof layer made of the high-strength fiber fabric laminate layer is used. It is possible to prevent bullets and blades from penetrating, but it is difficult to completely protect against local deformation impact caused by deformation and displacement of the hit part. It is also located in an advantage that can be eliminated by not and the cushion layer is present.

(3) The constituent requirements defined in claim 2 are typical constituent requirements that are desirable for the blade-proof / bullet-proof cushion to fulfill its performance. The general requirements to be fulfilled are: a. Fabric weight of high strength fiber is 100-400g /
m ² and a woven fabric laminate having 6 to 15 woven fabric laminate layers in which a plurality of woven fabrics are laminated b. In order to disperse the stress applied to the part to be hit and to effectively absorb and disperse the energy, the woven fabric layer of multiple woven fabrics composed of high-strength fibers is not joined or fixed between the woven fabric layers. And quilting or joint spacing 50mm
It is effective to use spot joining at the above intervals.

(4) Further, the constituent requirements defined in claim 3 define typical constituent requirements that are desirable for the blade-proof / ballistic cushion to satisfactorily exert its performance. As a general requirement for maximizing the function, a fabric laminate layer formed by laminating a plurality of fabrics composed of the high-strength fibers defined in claims 1 and 2 constitutes the fabric. The fibers are laminated by shifting the fiber arrangement direction by 45 °. When the constituent woven fabrics are sequentially shifted and laminated in such a laminated state by 45 °, the number of woven fabric constituent fibers required to cut and enter the blade is maximized and the blade-proof performance is maximized even if a bad blade is received at any blade angle. Is. That is, simply laminating the woven fabrics in the same arrangement direction may cause the number of cuts to be doubled or halved depending on the angle of the blade edge, and the blade-proof ability cannot be maximized. The same effect can be seen in bulletproof ability. (5) The stipulations relating to the high-strength fiber constituting the cushion having the blade-preventing / ballistic-preventing performance defined in claims 1 to 3 are aramid fibers as a typical example which is universal and easy to use.

Next, the high-strength fiber used in the present invention will be any fiber as long as it has a tensile strength of 20 g / d or more. A typical example thereof is polyparaphenylene terephthalate. Any commercially available so-called high-strength fiber such as aramid fiber represented by amide, high-molecular-weight polyethylene fiber, carbon fiber or polyparaphenylene benzobisoxazole fiber (PBO), polyparaphenylene benzobisthiazole fiber (PBT) can be used. It is possible. Further, such a fiber may be used by weaving a woven fabric using a multifilament yarn or by using a woven fabric as a spun yarn. The structure of the woven fabric is not particularly limited, but a relatively simple structure such as plain weave or twill weave having a high weave density is desirable.

Furthermore, the use of multiple woven fabrics, which are said to have high bulletproof effect in order to avoid stress concentration at the time of hitting and entering the blade and measure the dispersion of stress as the woven structure, is not necessarily required, and high tenacity fibers The state in which the woven fabric layers of the woven fabric laminated layer formed by laminating a plurality of woven fabrics configured in 1 above are not joined and fixed, and the quilting or the spot joining is performed at the spots of 50 mm or more for the purpose of providing adhesion. It is desirable to use. It should be noted that, although not particularly limited, the quilting for imparting adhesion to the woven fabric laminate is the same high-strength yarn as the fibers constituting the woven fabric in order to withstand a high impact when hit. Is more preferable.

Although not particularly limited and limited, if a blade-proof / ballistic-proof cushion having the same basis weight is formed, the blade-proof / ballistic-resistant cushion of the present invention can be used because of its blade-proof / ballistic-proof performance. It is better to prevent the number of layers of the structure composed of the combination of the cushioning material layer constituting the above and the woven fabric layer formed by laminating a plurality of woven fabrics composed of high-strength fibers from being a single layer rather than a single layer. Recommended because it can improve blade and bulletproof performance. In addition, although not particularly specified as a necessary condition, a cushioning material layer specified in the present invention and a plurality of fabrics composed of high-strength fibers are laminated to provide adhesion by quilting or spot joining. It is also preferable to coarsely quilt and integrally integrate the entire laminated body of a plurality of layers of a structure composed of a combination of the above and the above in order to enhance the blade-proof / ballistic-proof performance.

The specific manufacturing method and constitution of the cushion having the blade / ballistic prevention function according to the present invention are as follows. That is, as shown in FIG. 2 in its constitutional state, the cushion C having anti-blade and anti-ballistic functions was woven using high-strength fibers (filament yarn or spun yarn) having a tensile strength of 20 g / d or more. , Weight 10
0 to 400 g / m ² of the woven fabric 1 (the woven fabric structure is not particularly limited, but a plain weave or a twill woven fabric is preferable)
6 to 15 sheets are laminated, and quilting is performed to provide adhesion between the fabric layers, or a space between the bonding points is 50 on each fabric surface.
A hot melt adhesive is applied in a dot shape so as to have a size of not less than mm, and spot joining is performed with a joining point interval of 50 mm or more to fabricate a woven fabric laminate A in which a plurality of woven fabrics are gently laminated and integrated. At this time, the woven fabric constituting the woven fabric laminate A may be laminated with the fibers constituting the woven fabric aligned in the same alignment direction or may be laminated by shifting by 45 °. In order to obtain bulletproof performance, it is desirable to shift them by 45 ° and stack them.

Next, the woven fabric laminate A and a thickness of 5 to 20 m
m of cotton cotton or synthetic cotton soft cotton, and other cushion material 2 used as cushion material for cushion such as cushion material made of foamed material to form a structure B, and the structure B is further laminated in a single layer or three layers. This is further wrapped with a cushion material 3 for cushion formation, and further covered with an outer skin 4 for cushion formation (woven fabric or leather etc.) to prevent the blade of the present invention.
Make up a bulletproof cushion. Note that the structure B or the structure B
It is also possible to give a preferable result in improving the blade-proof / ballistic-proof effect by subjecting the structure in which the cushion is wrapped with quilting to a coarser interval. Furthermore, as shown in FIG.
A handle 5 can be provided on the back surface of the cushion F to facilitate use in protecting the body in an emergency.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, more concretely, the constitutional state of a cushion having a blade-proof / ballistic-proof function of the present invention and its effect will be described. [Example 1] Polyparaphenylene terephthalamide fiber manufactured by Teijin Limited, that is, spinning with a count of 20/2 composed of staple fibers having Kevlar129 (tensile strength 26.5 g / d, tensile elastic modulus 760 g / d). Using the yarn, a twill weave fabric 1 having a weaving density of 59 yarns / inch and 47 horizontal yarns / inch and a basis weight of 300 g / m ² was woven.
The representative physical properties of the obtained woven fabric are shown in Table 1.

[Table 1] (Note) The physical properties were measured according to JIS L 1096 general woven fabric test method. In addition, the tensile strength is the measured value of method A (strip method) constant speed extension type, material width 2.5 cm width,
The tear strength is a value measured by the A-1 method (single tongue method), and the burst strength is a value measured by the method A (Mullen type method).

10 pieces of the woven fabric 1 thus obtained were laminated by aligning the fiber arrangement directions of the woven fabric to prepare a woven fabric laminate A, and the woven fabric was woven at an interval of 50 mm for both vertical and horizontal in order to provide adhesion. Quilting was performed with the same 20/2 spun yarn as the fiber spun yarn. Next, a shock absorbing cushion layer 2 made of a cotton cotton layer having a thickness of 6 mm was laminated on the lower surface of the woven fabric laminate A subjected to the quilting, and a structure B in which both A-2 layers were laminated was produced. Further, in the woven fabric laminated body A constituting the structure B, a woven fabric laminated body A ′ in which only the number of woven fabric laminated layers is changed to 6 is used to produce a structured body B ′ having the same structure, B (upper side) and structure B '(lower side) are laminated, and the vertical and horizontal directions are also 15
Quilted at 0 mm intervals and gently integrated, cut into a size (50 to 60 cm square) suitable for cushion formation, wrapped with a cotton layer 3 of 10 mm thick, and further covered with a cushion (cloth) 4. Covered (total thickness 40m
m), a cushion for blade and bulletproof was prepared.

In order to evaluate the blade-proof performance of the prepared blade / ballistic cushion, as shown in FIG. 1, a cushion having a thickness of 65 m is used.
It is placed on a lauan material of m, and the total length of steel is 265 mm, the blade spans 140 mm, and the back wall thickness is 7 m at the position of 3.7 m above the cushion.
A sharp knife with a weight of 190 m and a weight of 190 g is set and dropped toward the blade / bulletproof cushion (the object to be tested) to observe the piercing-penetration state of the cushion, which is the object to be tested.
The blade protection performance of the bulletproof cushion was evaluated. The blade-proof performance observation results of the prepared blade-proof and bullet-proof cushions are as follows: the blade edge of the cutting knife slightly penetrates (0.1 mm protrudes) the tenth fabric of the fabric laminate A that constitutes the cushion to be tested. It was shown that the cushioning material layer of the structure B was substantially intact, and the underlying structure B ′ was completely intact, and had sufficient blade protection ability.

[Embodiment 2] In the manufacture of the blade-proof / ballistic cushion according to Embodiment 1, only the method for laminating the fabric of the fabric laminate A is changed so that the arranging directions of the fibers constituting the fabric are sequentially 45.
A fabric laminated body A ″ laminated so as to be displaced from each other was prepared, and this fabric laminated body A ″ was used in place of the fabric laminated body A of Example 1, and otherwise the blades of the same constitution as in Example 1 were used. -A bulletproof cushion was prepared and its blade-proof performance was evaluated in the same manner as in Example 1. The evaluation results are excellent as in the case of the blade-proof / ballistic cushion of Example 1, but the evaluation product is different from the product of Example 1 in that the fabric laminating method of the fabric laminate A ″ forming the cushion is used. The number of fibers cut and the cutting resistance at the time of penetrating the blade against the blade / bulletproof cushion are increased because the fibers constituting the woven fabric of the fabric laminate A ”are laminated so that the arrangement directions of the fibers are sequentially shifted by 45 ° in each layer. Since the penetration resistance increases, the blade edge of the cutting knife slightly cuts the 7th woven fabric of the fabric laminate A ″ that constitutes the cushion to be tested, and the 8th and subsequent sheets are intact and have more blade-proof performance. It was shown to be excellent.

Example 3 Polyparaphenylene benzobisoxazole fiber (PBO) having a tensile strength of 40 g / d, a tensile modulus of elasticity of 2,000 g / d and an elongation at break of 2.5%. A plain weave woven fabric (300 g / m ² ) in which a 500 d / 1,000 f multifilament yarn is struck at a density of 9.0 threads / cm for both length and width.
Was woven, and this woven fabric was used to replace the aramid fiber woven fabric of Example 2 to produce a blade-proof / ballistic-cushion having the same composition as in Example 2. In order to evaluate the bulletproof performance of this blade / bulletproof cushion, the 9mm pistol was used to secure the blade / bullet cushion to be tested on the Lauan material with a thickness of 65 mm so that the position would not shift and Set a handgun so that the bullet hits vertically at a distance of 5 m from
The hit object was disassembled and the bullet penetration state was visually observed to evaluate the bulletproof performance.

The bullet-proof performance evaluation result obtained by visually observing the cut surface of the hit part of the hit object in the bullet penetration direction and the demolition object after peeling the hit object in the laminating direction is the bullet of the woven fabric in the woven fabric laminate A "layer. The breakage due to penetration was more complete and clear in the upper layer, the number of breakages was less in the 8th layer and later, and in the 10th layer fabric, although there was no breakage, the tissue displacement due to the bullet was clearly seen, and the bullet penetration It was observed that while the fabric was blocked by the A "layer, the displacement due to the bullet could not be prevented yet. Since the structural displacement due to the bullet entry is absorbed by the cushion layer of the structure B, there is a slight tissue deformation displacement up to the fabric of the third layer of the fabric laminated body layer A ′ located on the upper surface of the structure B ′. Bring, but the fourth
Almost no deformation displacement was found in the fabric layers after the single layer,
It was found that the impact from the hit was almost stopped. As a matter of course, no depression was found on the Lauan plate behind the cushion.

Further, the blade-proof performance of the blade-proof and bullet-proof cushion was evaluated in the same manner as in Example 1. As a result, 6 of the fabric laminate A ″ in the structure B constituting the cushion to be tested was constructed.
It was found that the cutting edge of the cutting blade knife slightly cuts the woven fabric of the first sheet, and the 7th and subsequent sheets are intact and have extremely excellent blade-proofing performance.

[Comparative Example] A normal cushion having a thickness of 70 mm, in which the cushion material was made of cotton cotton, was prepared, and the blade-proof performance test and the bullet-proof performance test were carried out in the same manner. Penetration of the cushion and 9 for lauan wood
pierced to a depth of mm. Also, in the bulletproof performance test, there was no bulletproof ability, and the bullet penetrated deeply into the Lauan material.

[0024]

[Effects of the Invention] The use of the blade / bulletproof cushion of the present invention allows it to be used without any difference from a cushion that is used in everyday life. The troublesome experience of wearing bulletproof vests and the feeling of pressure caused by wearing them. Without feeling the alienation of activities, it is possible to work under normal clothes and activity conditions, and in an emergency, create an environment / condition that can protect yourself from damage from bad blades and damage by being hit as a protective material (shield) in an emergency. .
In addition, since such a blade / bulletproof cushion is used by holding it in front of you as a shield in case of emergency, you can avoid bullet penetration with bulletproof vest, but it is difficult to avoid deformation impact of bulletproof vest due to hit. The problem can be solved, and you can make a rescue call while holding the Uttori to prevent danger.

[Brief description of drawings]

FIG. 1 is a schematic view of a cutting blade knife used for evaluation of blade protection ability.

FIG. 2 is a cross-sectional view showing a configuration state of a blade / ballistic cushion.

FIG. 3 is a plan view showing the back surface of a blade / ballistic cushion.

[Explanation of symbols]

1 Blade-proof and bullet-proof woven fabric made of high-strength fiber 2 Cushion material layer 3 that constitutes blade-proof and bullet-proof cushions 4 Cushion material 4 Outer skin F Blade-proof and bullet-proof cushions A, A ', A "Woven fabric made of high-strength fibers Laminate layer B, B'A, A'or A "and a structure layer formed by laminating A" and 2

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Claims (5)

(57) [Claims] 1. A combination of a cushion material layer used for constructing cotton cotton or a cushion, and a fabric laminate layer formed by laminating a plurality of fabrics composed of high-strength fibers having a tensile strength of 20 g / d or more. A single layer or three layers of the structure described above are laminated, and cotton or a cushioning material layer used for forming a cushion is arranged on the uppermost bottom layer of the laminate, and the structure is covered with a cushion for forming a cushion. Cushion with blade and bulletproof function. 2. The basis weight of the woven fabric composed of the high-strength fibers is 100 to 400 g / m ² , and the woven fabric is 6
The cushion having a blade-proof / ballistic-proof function according to claim 1, wherein the woven fabric laminate having 15 to 15 layers is quilted or spot-joined. 3. The cushion having a blade-proof / ballistic-proof function according to claim 1, wherein the woven fabric laminate layer is laminated by displacing the constituent fiber arrangement direction in the woven fabric constituent structure by 45 °. 4. The cushion having a blade-proof / ballistic-proof function according to claim 1, wherein the high-strength fiber is an aramid fiber. 5. The cushion having a blade-proof and bulletproof function according to claim 1, wherein a handle is provided on the back surface of the cushion.