JP2009143166A - Edgeproofing and pickproofing element and protective clothing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an edgeproofing and pickproofing element excellent in edgeproofing and pickproofing effects, which has plenty of mobility and is excellent in permeability and flexibility, and a protective clothing employing thereof. <P>SOLUTION: An edgeproofing and pickproofing element is so constituted as to gaplessly cover the surface of a knitting ground knitted by aramid base fiber with small pieces of edgeresisting plates and then to fix the pieces through adhesive to the surface. In order to obtain enough edgeproofing and pickproofing effects, the perfect bonding of the edgeresisting plates to the knitting ground is necessary and the crimpingly bonding of the whole one side of the edgeresisting plate to the knitting ground is necessary. In order to improve pickproofing properties by effectively catching the edge of a blade of an ice ax or the like, small holes each with its inscribed circle of ≤2 mm are provided in each edgeresisting plate. In addition, by utilizing the elasticity of the knitting ground, a so called pinching effect for catching the edge of the blade by pinching it with two sheets of the edgeresisting plates therebetween is shown. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is formed using an anti-blade and stab-proof material, a manufacturing method thereof, and the material for the purpose of protecting against a sharp cone-shaped blade such as an ice pick and a knife and a steel blade such as a knife and a knife. Related to protective clothing.

  Conventionally, people engaged in dangerous missions such as police officers and guards sometimes wear blade-proof clothing and bulletproof vests in order to avoid danger in advance. This type of protective garment uses a strong chemical fiber cloth and is sewn using a metal plate inside, and although it has sufficient defense against full-scale weapons, it weighs several kilograms. Workability was poor, and it was not able to withstand long-time use as clothing worn daily.

  In recent years, midnight crimes have been increasing against the background of 24-hour life, and robberies involving stabs with knives and knives for no reason have occurred frequently. Therefore, in order to protect the safety of not only police officers, but also store staff at convenience stores that operate late at night, and security guards at security companies that manage buildings at night, prevent the risk of drought. A simple protective garment is required. Under such circumstances, aramid super fiber has been developed as a high-performance fiber that can be worn comfortably without fatigue (having air permeability) in daily life, and has blade prevention and workability against the blade. There is also provided a simple protective garment having a blade stab-proof property using such a protective ground. The inventor of the present invention has already filed an application for a stab-proof material used for such a purpose and clothes using the same (Patent Document 1).

  On the other hand, various improvements have been made to conventional heavy and fatigue-resistant protective clothing using a metal plate or the like. For example, as a means to add mobility to follow a violent movement, light weight that does not get tired even when worn for a long time, and comfort to protective clothing, a blade-resistant metal plate with a blade resistance is used as a constituent unit In addition, a blade-resistant protective member and clothing that improve the ease of movement for the wearer without impairing the blade resistance by loosely connecting them into a flat or curved surface have been proposed. For these blade-resistant members, a method and means for covering the gap between the blade-resistant plates made of metal pieces are important elements for maintaining the blade-resistant effect (Patent Document 2, Patent Document 3, and Patent Document 4).

JP 2005-144886 A JP 2004-278978 A Japanese Patent Laying-Open No. 2005-066972 Japanese Patent Laid-Open No. 2006-12596

  It can be confirmed that the material having the anti-blade and stab-proof properties only by the aramid fiber proposed by the present inventor achieves a sufficient effect in avoiding the risk of wrinkles in daily life, but for simple protective clothing only However, there was room for improvement from the viewpoint of effectiveness to make blade-proof protective clothing that police officers use in serious crime cases. On the other hand, the blade-resistant protective garments as shown in Patent Document 2 to Patent Document 4 are devised to fully follow the wearer's body shape and movement, but a part of the blade-resistant plate made of metal is overlapped. Or, it is necessary to connect the gaps between the blade-resistant plates with metal joints, and the overall weight must be increased, and the generation of noise due to contact between metals is not complete, and when worn It did not fully compensate for comfort and mobility.

  As described above, the present situation is that a complete protective garment having sufficient anti-blade and stab-proof effects and easy mobility, breathability, and light weight at the time of wearing has not yet been completed. In view of such a situation, the present invention uses an aramid fiber having a blade-proofing effect and high tensile strength and a hard and lightweight aluminum alloy / titanium alloy, etc. The purpose of this is to provide a protective clothing that is highly mobile and has excellent breathability and flexibility.

  In order to achieve the above-mentioned object, the blade-proof material according to the present invention is configured by laying a blade-resistant plate made of small pieces on the surface of a knitted fabric knitted with aramid fibers without gaps and fixing with an adhesive. ing. In order to sufficiently obtain the anti-blade and stab-proof effect, the anti-blade plate needs to be in close contact with the knitted fabric, and the entire one side of the anti-blade plate needs to be pressure-bonded to the knitted fabric. Further, it is best to provide the anti-blade plate with a small hole having an inscribed circle with a diameter of 2 mm or less in order to effectively capture the edge of an ice pick or the like and improve the anti-sticking property.

  The knitted fabric is best knitted. By using the stretchability of the knitted fabric, it becomes possible to exert a pliers effect (described later) that the two blade-resistant plates sandwich and capture the blade edge. Adhesives based on nylon resin or polyester resin can improve adhesive strength, and the blade-resistant plate is best selected from aluminum alloy, titanium alloy, and carbon fiber from the viewpoint of weight reduction and hardness. is there. From the viewpoint of enhancing the antistab effect, it is preferable that the shape of the blade-resistant plate is a regular polygon or that the outer peripheral line of the blade-resistant plate includes a curved portion.

  The anti-blade material according to the present invention can be manufactured by placing an anti-blade plate coated with an adhesive on the surface of a knitted fabric knitted with aramid fibers without any gaps, and press-bonding it at high pressure. The protective garment according to the present invention is constructed by using the blade-proof material as an internal material, with the blade-proof plate of the blade-proof material manufactured in this way facing the outer surface, the knitted fabric facing the human body side. It is a thing. According to the above configuration means, the following operational effects can be obtained.

  According to the blade-proof and stab-proof material according to the present invention, the blade-resistant plate made of small pieces is laid without any wrinkles on the knitted fabric knitted with the cut-resistant aramid fiber, and is strongly bonded and fixed. In addition to exhibiting the blade-proof effect of the plate, when the cutting edge is pressed into the gap between the blade-resistant plates, the gap between the blade-resistant plates is further increased by the cooperation of the tensile strength of the knitted fabric made of aramid fibers and the hard blade-resistant plate. As a result, the cutting edge is captured by the pliers effect, so that it is possible to exert a strong anti-stab effect. If the blade is made of anti-blade material and the knitted fabric is facing the human body, and the anti-blade material is made of the anti-blade material, it is effective against press-fitting of the blade from the outside. It can be seen that the pliers effect acts.

  On the other hand, the blade plate is made of a hard material (in this example, an aluminum alloy, a titanium alloy, etc.), and by forming a small hole with an inscribed circle diameter of 2 mm or less, the cutting edge is conical. In addition, since the small hole can catch the cutting edge, it is possible to improve the antistab effect, and to achieve a structure that can realize weight reduction and air permeability at the same time. Since the knitted fabric knitted with aramid fibers has air permeability, a comfortable wearing feeling can be realized even when it is used as a protective garment. In addition, even in the case of the blade-proof and stab-proof material according to the present invention, even if the blade-resistant plate is made of metal, they do not overlap each other, and there is no need for a joint between the blade-resistant plates, so that metal contact noise is generated during activity. Also has the advantage of significantly reducing.

  Hereinafter, embodiments of the blade stab-proof material 1 and the protective clothing 40 according to the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an embodiment of a blade-proof and stab-proof material 1 according to the present invention. This blade-proof and stab-proof material 1 is formed by arranging a blade-resistant plate 20 made of small rectangular pieces densely on a knitted fabric 10 without gaps and being pressure-bonded to the knitted fabric 10 with an adhesive. The blade-resistant plate 20 is provided with a plurality of small holes 21. The number of the small holes 21 may be one, but considering the weight reduction and breathability of the protective clothing 40 (see FIG. 5) and the capture performance of the blade edge 30 (see FIG. 4), the strength of the blade-resistant plate 20 is not impaired. It is preferable to provide a plurality.

  The knitted fabric 10 is composed of aramid fibers. An aramid fiber is a synthetic linear polymer in which 85% or more of the amide bonds are directly bonded to two aromatic rings. The meta-aramid fiber (polymer with metaphenylenediamine) and para-aramid fiber ( Any polymer can be used for the present invention. Aramid fibers have been developed as high-performance fibers having cut resistance and workability. The aramid fibers are not stretchable but have high tensile strength.

  Although the method of knitting the knitted fabric 10 is not limited, knit knitting is optimal. The reason why the knitted fabric 10 is knitted is that a stab-proof effect can be expected even in a portion where the blade-resistant plate 20 is not crimped. Even when an aramid fiber fabric is used as the groundwork, cut resistance is recognized due to the nature of the material, but when pierced with a conical blade perpendicular to the fabric surface, the slipperiness, which is a unique defect of the fabric, is great, preventing it. There is almost no stab effect, and even if the fabrics are stacked in layers, the effect is not improved. By using the knitted fabric 10, particularly the knit knitting, the entire knitted fabric 10 can have a stab-proof effect.

  Although the thickness of the aramid fiber is not particularly limited, it is preferable to use a fiber having a thickness between 100 denier and 500 denier in practice. However, in order to expect the effect of preventing the slipperiness of the conical blade, it is necessary to have a certain high knitting density.

  The blade-resistant plate 20 is best composed of an aluminum alloy containing copper (AL-CU system). Although it has some drawbacks in corrosion resistance, it is lightweight and has high hardness, so that it can satisfy both blade resistance and lightness. It can also be made of a titanium alloy. In that case, the hardness increases but the weight also increases. Moreover, although carbon fiber can be used for weight reduction, hardness falls a little compared with an aluminum alloy. However, no matter which one is used, the anti-blade effect is recognized.

  The shape of the anti-blade plate 20 is not limited. Any shape can be used as long as it is arranged without a gap like a jigsaw puzzle. In order to ensure the activity, a small piece of 25 mm × 25 mm is preferable, but it is determined in order to ensure sufficient activity and is not particularly limited. In general, as shown in FIG. 1, it is formed in a regular polygon such as a regular square or a regular hexagon, but the present invention is not limited to this. FIG. 2 is a pattern diagram in which the blade-resistant plate 20 is formed of a regular hexagon. Moreover, as shown in FIG. 3, it is preferable to form the outer peripheral line 23 of the blade-resistant plate 20 so as to include a curved portion, and to arrange the blade-resistant plates 20 so as to contact with each other with a curved line. Thereby, it becomes difficult for the flat blade edge 30 such as a knife to enter the gap where the blade-resistant plate 20 contacts, and the antistab effect is further improved.

  The small hole 21 provided in the anti-blade plate 20 is an effective configuration for catching the cutting edge 30 that has hit the anti-blade plate 20, and the diameter of the inscribed circle is preferably 2 mm or less. The diameter of the inscribed circle is 2 mm or less, as shown in FIG. 2, although the shape may be any shape, the diameter of the maximum circle inscribed in the small hole 21 is 2 mm or less. This is because even a cone-shaped cutting edge such as an ice pick or a thousand pieces is effectively captured, and the antistab effect is not diminished. For this reason, although the shape of the small hole 21 is generally formed in a circular shape, it is also effective to make the cross hole 22 in order to make it easier to catch the flat blade edge. In that case, it is necessary to determine the width of the rectangular portion so that the diameter of the circle inscribed in the center of the cross hole 22 is 2 mm or less.

  The anti-blade material 1 is laid on a flat surface of a knitted fabric 10 knitted with aramid fibers, and an anti-blade plate 20 coated with an adhesive is placed on the knitted fabric 10 without any gaps. Accordingly, the blade-resistant plate 20 is firmly fixed to the knitted fabric 10, and the knitted fabric 10 is manufactured so as to follow the movement of the blade-resistant plate 20 without causing lateral displacement. As the adhesive, a thermosetting adhesive using nylon resin or polyester resin can be used. In order to produce the so-called pliers effect, the blade plate 20 and the knitted fabric 10 need to be fixed together, and thus the adhesive is required to have a high tensile strength. Therefore, the anti-blade plate 20 must be pressure-bonded to the knitted fabric 10.

  Below, the effect of the blade-proof stab material 1 which concerns on this invention is demonstrated using FIG. FIG. 4 is an enlarged view for explaining the so-called pliers effect. When the cutting edge 30 such as the only one is press-fitted into the gap between the two blade-resistant plates 20 and 20 arranged in close contact with each other, the gap between the two blade-resistant plates 20 and 20 is pierced, and the contact surface on the knitted fabric 10 side. Opens and bends into a V shape. Since the knitted fabric 10 and the blade-resistant plate 20 are pressure-bonded and fixed to each other, the knitted fabric 10 extends at the gap portion. As a result, the upper ridge portion of the blade-resistant plate 20 sandwiches the side surface of the blade edge 30 so that the blade edge 30 is sandwiched. Try to prevent the entry of. This is a pliers effect, and a similar effect can be produced even with a cone-shaped cutting edge. With this effect, the ease of activity can be more easily secured without diminishing the anti-blade effect even if the blade-resistant plate 20 is made into a small piece and the contact portion is not covered.

  On the other hand, when a sharp portion such as a cone-shaped blade edge or a sharp blade edge of the knife hits the blade-resistant plate 20, a circular small hole 21 or a cross-shaped small hole formed in the blade-resistant plate 20 is used. 22 (see FIG. 2) captures the cutting edge and restrains the entry, so that the anti-blade and stab-proof effect is exhibited. At this time, the diameter of the inscribed circle of the small holes 21 and 22 is set to 2 mm or less in order to ensure the antistab effect. If a large number of the small holes 21 and 22 are provided within a range that does not impair the strength of the blade-resistant plate 20, the weight of the blade-proof material 1 can be reduced and the air permeability can be improved.

  FIG. 5 shows an external view of a blouson-type protective garment 40 using the blade stab-proof material 1 according to the present invention. The anti-blade material 1 is used by sandwiching the knitted fabric 10 on the human body side and the anti-blade plate 20 side on the outer surface side, and sandwiching it between the outer material and the lining material. It is also possible to use the knitted fabric 10 as a lining as it is. FIG. 5 only shows an example in which the blade-proof material 1 is arranged on the entire back portion of the back body, and of course the present invention is not limited to this. By using it on the front body, sleeves, and collars, it is possible to ensure a wide range of blade- and stab-proof effects.

  As an example, the weight of the protective garment 40 when using an aluminum alloy (A2017) will be calculated. This aluminum alloy is an AL-CU alloy, and the specific gravity of aluminum (AL) is 2.70 g / cc and the specific gravity of copper (CU) is 8.96 g / cc. When the blade-resistant plate 20 is an aluminum alloy plate having a size of 25 mm × 25 mm × thickness 1 mm and a punching pattern having a hole diameter of 2.0 mm and a pitch between holes of 3.5 mm is applied, the weight of one blade-resistant plate 20 is about 1 .27 g. Since the number of blade-resistant plates 20 used in the protective garment 40, which is 80 in the front body, 162 in the back, and 144 in the sleeves, is approximately 386, the weight of the blade-resistant plate 20 as a whole is approximately 455.48 g. Even if the thickness is 1.5 mm, it is about 682 g, and a considerable weight reduction can be realized. As a result, the weight of the entire protective garment 40 can be reduced to about 1 kg. It should be noted that the present invention is not limited to this embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

It is one Embodiment of the blade-proof material which concerns on this invention. It is the pattern figure which comprised the anti-blade board by the regular hexagon. It is the pattern figure comprised so that a curved part may be included in the outer periphery of a blade-proof board. It is an enlarged view for demonstrating what is called a pliers effect. It is an external view of a blouson-type protective clothing using a blade-proof material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blade prevention stab material 10 Knitted fabric 20 Blade-proof board 21 Small hole 22 Cross hole 23 Perimeter line 30 Cutting edge 40 Protective clothing

Claims (9)

  An anti-blade and stab-proof material in which blade-resistant plates made of small pieces are placed on the surface of a knitted fabric knitted with aramid fibers without gaps and fixed with an adhesive.   The blade-proof and stab-proof material according to claim 1, wherein the entire surface on one side of the blade-resistant plate is pressure-bonded to the knitted fabric.   The blade-proof and stab-proof material according to claim 1 or 2, wherein the blade-resistant plate has a small hole having a diameter of an inscribed circle of 2 mm or less.   The blade knitting and stab-proof material according to any one of claims 1 to 3, wherein the knitted fabric is knit knitted.   The blade-proof and stab-proof material according to any one of claims 1 to 4, wherein the adhesive is a nylon resin or a polyester resin.   6. The blade-proof and stab-proof material according to any one of claims 1 to 5, wherein the blade-resistant plate is made of any one of aluminum alloy, titanium alloy, and carbon fiber.   The blade-proof material according to any one of claims 1 to 6, wherein the blade-resistant plate has a regular polygonal shape.   The anti-blade material according to any one of claims 1 to 6, wherein an outer peripheral line of the anti-blade plate is formed including a curved portion.   The blade-proof and stab-proof material according to any one of claims 1 to 8 is used with the blade-proof and stab-proof material as an internal material of clothes, with the blade-resistant plate facing the outer side and the knitted fabric facing the human body. Protective clothing.

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