JP2022187332A - Laminated member and protective clothing - Google Patents

Abstract

To provide a laminated member capable of sufficiently protecting an object to be protected even when it is hit by an object, and hardly injuring the object to be protected, people, animal and an object around it even if it is damaged, and a protective clothing using the same.SOLUTION: There is provided a laminated member 101 for protecting an object 90 to be protected, in which a fiber-reinforced plastic layer 11 containing plastic and fibers is arranged between a pair of outermost flexible resin layers 10, 10. It is preferable that the flexible resin layer 10 comprises a thermoplastic resin.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a laminated member for protecting an object to be protected from objects hitting the object to be protected, and protective clothing using the same.

Objects to be protected (objects to be protected), such as people, animals, and objects, may be damaged when objects hit them. BACKGROUND ART In order to protect an object to be protected from an object (hereinafter also referred to as a collision object) that hits the object to be protected, a protective member is arranged between the collision object and the object to be protected. The protective member is used by being arranged on the surface of the object to be protected, arranged on the surface of the collision object, or arranged at any position between the object to be protected and the collision object.

There are various types of impactors. An example of a collision object is a sharp flying object. Flying burrs during hot forging have been reported as a specific example of accidents caused by flying objects. Burrs have a very sharp shape and fly at high speed. Workers are working close to the forging machine, and burrs can cause death or injury. A case has been reported in which a piece of metal actually flew into the abdomen of a human body due to breakage of a press machine and was implanted in the intestinal tract. Therefore, there is a demand for protective gear that protects the human body during work.

Since burrs fly at a very high speed, armor must be not only impact-resistant, but especially puncture-resistant. Also, burrs are expected to fly from the armpits to the knees of the human body. Although not caused by flying burrs, there have been reported cases of massive bleeding and shock due to puncture wounds on the inside of the thigh. Injury to the femoral artery also carries the risk of serious sequelae. From the above, it is conceivable that when a burr with a sharp tip flies and damages an artery, it may lead to a serious accident. For example, in order to protect an object to be protected from sharp flying objects, a protective member with excellent piercing resistance is required.

In addition to this example, at various manufacturing sites, machine operating sites, and destruction sites such as blasting and demolition, sharp flying objects may occur and injure people, pets, livestock and other animals and objects. There is Moreover, the collision object is not limited to a sharp object, and various objects such as size, shape, and mass are assumed.

JP 2009-172950 A

For example, Patent Document 1 discloses a composite material sheet placed on the surface of an object to be protected. A composite sheet is described which has a fiber-reinforced plastic layer comprising aramid fibers or carbon fibers and a resin, which is arranged on the side facing away from the protective body. It is described that a thermosetting resin or a thermoplastic resin is used as the resin used for the fiber-reinforced plastic layer.

In addition to this composite material sheet, development of a laminated member (protective member) capable of protecting an object to be protected is desired. Moreover, even if the laminated member is damaged, it is desired to develop a laminated member that does not only damage the object to be protected, but also does not damage surrounding animals and objects.

The present invention has been made to solve the above-mentioned problems. To provide a laminated member which hardly damages the skin and protective clothing using the same.

A laminated member according to claim 1 is a laminated member for protecting an object to be protected, wherein a fiber-reinforced plastic layer containing plastic and fibers is disposed between a pair of outermost flexible resin layers. characterized by being

A laminate member according to claim 2 is the laminate member according to claim 1, wherein the flexible resin layer is formed of a thermoplastic resin.

A laminated member according to claim 3 is the laminated member according to claim 2, wherein the thermoplastic resin forming the flexible resin layer is a polyolefin resin.

According to claim 4, there is provided a laminate member according to claim 1, wherein the flexible resin layer is made of silicon resin or rubber.

A laminated member according to claim 5 is the laminate member according to any one of claims 1 to 4, wherein the plastic is a thermoplastic resin.

The laminated member according to claim 6 is the laminated member according to claim 5, and is characterized in that the thermoplastic resin, which is the plastic, is a polyolefin resin.

According to claim 7, there is provided a laminate member according to any one of claims 1 to 4, wherein the plastic is a thermosetting resin.

The laminated member according to claim 8 is the laminated member according to any one of claims 1 to 6, wherein the fiber-reinforced plastic layer is an aramid fiber-reinforced plastic layer containing aramid fibers as the fibers. do.

The laminated member according to claim 9 is the laminated member according to any one of claims 1 to 6, wherein the fiber reinforced plastic layer is a carbon fiber reinforced plastic layer containing carbon fibers as the fibers. do.

The laminated member according to claim 10 is the laminate member according to any one of claims 1 to 9, and is characterized by having a plurality of the fiber-reinforced plastic layers.

The laminated member according to claim 11 is the laminate member according to any one of claims 1 to 6, and includes an aramid fiber reinforced plastic layer containing aramid fibers as the fibers, and a carbon fiber reinforced plastic layer containing carbon fibers as the fibers. and a layer.

The laminated member according to claim 12 is the laminate member according to any one of claims 1 to 11, characterized in that a flexible resin layer is arranged between the adjacent fiber reinforced plastic layers. do.

A protective clothing according to claim 13 is characterized in that the laminated member according to any one of claims 1 to 12 is arranged in a clothing body.

The protective clothing according to claim 14 is the protective clothing according to claim 13, and is characterized in that the clothing main body has a mounting member to which the laminated member can be detachably mounted.

A method for manufacturing a laminated member according to claim 15 is a method for manufacturing a laminated member for protecting an object to be protected, wherein sheet-shaped fibers are arranged between a plurality of laminated sheet-shaped resin raw materials, It is characterized by forming a fiber-reinforced plastic layer by heating and pressurizing to impregnate the resin raw material into the fibers, and forming a flexible resin layer to be the outermost layer.

The method for manufacturing a laminated member according to claim 16 is the method according to claim 15, wherein the plurality of sheet-shaped fibers and the plurality of sheet-shaped resin raw materials are alternately arranged, and the heating and heating are performed. A plurality of fiber-reinforced plastic layers are formed by pressing, and a flexible resin layer is formed between adjacent fiber-reinforced plastic layers.

When a fiber reinforced plastic layer is arranged between a pair of flexible resin layers on the outermost layer of a laminated member for protecting an object to be protected, the object to be protected can be sufficiently protected even if an object hits it. Even if the laminated member is damaged, the object to be protected and the people, animals, and objects around it are not easily damaged.

When the flexible resin layer is made of a thermoplastic resin, it is more resistant to impact than a thermosetting resin and is therefore less likely to break. When the thermoplastic resin constituting the flexible resin layer is a polyolefin resin, it is flexible and lightweight, so that it is less likely to damage surrounding people, animals and objects, and a lightweight laminated member can be obtained. When the flexible resin layer is made of silicone resin or rubber, it is flexible and therefore less likely to hurt surrounding people, animals, or objects.

If the plastic of the fiber-reinforced plastic layer is a thermoplastic resin, it is more resistant to impact than a thermosetting resin, and is therefore less likely to break. When the thermoplastic resin, which is a plastic, is a polyolefin resin, it is flexible and lightweight, so that it is less likely to damage surrounding people, animals, and objects, and a lightweight laminated member can be obtained. When the plastic is a thermosetting resin, it is hard, so that the laminated member can have excellent impact resistance and puncture resistance.

When the fiber-reinforced plastic layer is an aramid fiber-reinforced plastic layer containing aramid fibers, there is an effect that the weight is reduced and the impact resistance is improved. When the fiber-reinforced plastic layer is a carbon-fiber-reinforced plastic layer containing carbon fibers, there is an effect that the flexural modulus and longitudinal elastic modulus are improved. When it has a plurality of fiber-reinforced plastic layers, the impact resistance is further improved. When having both an aramid fiber-reinforced plastic layer containing aramid fibers and a carbon fiber-reinforced plastic layer containing carbon fibers, the impact resistance is more excellent. When a flexible resin layer is arranged between adjacent fiber-reinforced plastic layers, the impact resistance is more excellent.

When the laminated member of the present invention is arranged in the clothing body, it becomes a protective clothing that is lightweight and has excellent impact resistance. When the clothing body has a mounting member to which the laminated member can be detachably attached, even if a part of the laminated member is damaged, only the laminated member can be replaced simply and quickly.

In the method for producing a laminated member of the present invention, a sheet-shaped fiber is placed between a plurality of stacked sheet-shaped resin raw materials, and heated and pressed to impregnate the resin raw material into the fibers to form a fiber-reinforced plastic layer. By forming a flexible resin layer that is to be the outermost layer while forming, the laminated member can be easily manufactured. By alternately arranging a plurality of sheet-shaped fibers and a plurality of sheet-shaped resin raw materials and applying heat and pressure, the fiber-reinforced plastic layer and the flexible resin layer can be formed simply and quickly.

1 is a schematic enlarged cross-sectional view showing a usage state of a laminated member to which the present invention is applied; FIG. FIG. 2 is a schematic diagram of a hot press used when manufacturing a laminated member by heating and pressurizing it. It is a mimetic diagram showing a manufacturing method of a lamination member to which the present invention is applied. FIG. 4 is a schematic enlarged cross-sectional view showing a usage state of another laminated member to which the present invention is applied; FIG. 4 is a schematic diagram showing another method of manufacturing a laminated member to which the present invention is applied; FIG. 11 is a schematic enlarged cross-sectional view showing the state of use of still another laminated member to which the present invention is applied. FIG. 10 is a schematic diagram showing still another method of manufacturing a laminated member to which the present invention is applied. It is a schematic diagram showing the use condition of protective clothing to which the present invention is applied. 1 is a cross-sectional view of protective clothing to which the present invention is applied; FIG. FIG. 2 is a schematic diagram showing a laminated structure during molding in Example 1; It is a schematic block diagram of the impact tester used for a puncture test. FIG. 3 is a schematic configuration diagram showing a method of fixing a striker and a test piece (laminated member) used in a puncture test. 1 is a photograph of the appearance of Example 1 after a puncture test. FIG. 10 is a schematic diagram showing a laminated structure during molding in Example 2; 4 is a photograph of the appearance after the puncture test of Example 2. FIG. FIG. 10 is a schematic diagram showing a laminated structure during molding in Example 3; 3 is a photograph of the appearance after the puncture test of Example 3. FIG. FIG. 10 is a schematic diagram showing a laminated structure during molding in Example 4; 10 is a photograph of the appearance after the puncture test of Example 4. FIG. FIG. 11 is a schematic diagram showing a laminated structure during molding in Example 5; FIG. 11 is a schematic diagram showing a laminated structure during molding in Example 6; 10 is a photograph of the appearance after the puncture test of Example 6. FIG. FIG. 11 is a schematic diagram showing a laminated structure during molding in Example 7; 10 is a photograph of the appearance after the puncture test of Example 7. FIG. 4 is a photograph of the appearance of Comparative Example 1 after a puncture test. 2 is an enlarged photograph of a fracture surface after a puncture test of Comparative Example 1. FIG.

Although the embodiments for carrying out the invention will be described in detail below, the scope of the invention is not limited to these embodiments.

(First embodiment)
FIG. 1 shows a schematic enlarged cross-sectional view showing the state of use of the laminated member 101 of the present invention. The laminated member 101 is arranged to prevent the object to be protected 90 from being damaged by an object (not shown; also called a collision object) hitting the object to be protected 90 . The protected object 90 is a person, an animal (protected animal), or an object (protected object). The figure shows an example in which a laminated member 101 is arranged on the surface of an object 90 to be protected. The collision body hits the laminated member 101 (protected body 90) from the opposite side of the laminated member 101 to the protected body 90 (upper side in the figure). The laminated member 101 may be arranged on the surface of the impactor, or may be arranged at an arbitrary position between the impactor and the protected body 90 . As will be described below, laminate member 101 may be placed in a protective garment worn by a person.

The laminated member 101 is for protecting the protected object 90, and has a fiber-reinforced plastic layer 11 containing plastic and fibers disposed between a pair of outermost flexible resin layers 10, 10. There is. The fiber-reinforced plastic layer 11 may be a single layer, or may have a laminated structure consisting of a plurality of layers.

The flexible resin layer 10 is formed in layers from a flexible resin. The flexible resin layer 10 has the property of being elastically deformed when hit by an impact body. Therefore, it deforms flexibly and is less likely to be damaged when hit by an impact body. Even if the laminated member 101 (particularly the fiber-reinforced plastic layer 11) is damaged, it is possible to prevent injury to the protected object 90 and surrounding people, animals and objects. It is preferable that the flexible resin layer 10 is hard to crack. When the flexible resin layer 10 is made of a ductile material that causes ductile fracture, even if it is damaged, no burrs are generated and fragments are not scattered, which is preferable. When an object with a sharp tip is assumed as the impact object, it is preferable that the impact object has excellent puncture resistance.

The resin used for the flexible resin layer 10 may be either a thermoplastic resin or a thermosetting resin. Thermoplastic resins can be preferably used because they are more resistant to impact than thermosetting resins and are less susceptible to breakage.

Examples of thermoplastic resins used for the flexible resin layer 10 include polyethylene, polycarbonate, polypropylene, polyamide, polyamideimide, polysulfone, polyacetal, polyphenylene ether, polyphenylene sulfide, polyarylate, polyetherimide, polyethersulfone, and polyether. Examples include ketone, polyvinyl chloride, polyvinylidene chloride, polystyrene, EVA resin, AS resin, ABS resin, PET resin and methacrylic resin, and blend polymers thereof.

As the thermoplastic resin used for the flexible resin layer 10, polyolefin-based resins such as polyethylene and polypropylene are particularly preferable because they are lightweight. Among polyolefin-based resins, polyethylene can be particularly preferably used because it is lightweight and has excellent impact resistance. Polyethylene has various characteristics, and any of them may be used according to the need. For example, polyethylene is commonly classified into HDPE, High Density Polyethylene, LDPE, Low Density Polyethylene, VLDPE, Very Low Density Polyethylene / ULDPE, Ultra Low Density Polyethylene), Linear Low density Polyethylene (LLDPE), and Ultra-High Molecular Weight Polyethylene (UHMW-PE). According to Wikipedia, the free encyclopedia on the Internet, high-density polyethylene has a specific gravity of 0.92 - 0.96 and a deflection temperature under load of 130°C or less; low-density polyethylene has a specific gravity of 0.91 - 0.92; Polyethylene has a specific gravity <0.9, linear low-density polyethylene has a specific gravity <0.94, and ultra-high molecular weight polyethylene generally has a molecular weight of 1.5 million or more. Ultra high molecular weight polyethylene can be used more preferably because it is lightweight with a specific gravity of 0.92 to 0.94 and has extremely high impact resistance.

Examples of thermosetting resins used for the flexible resin layer 10 include unsaturated polyester resins, vinyl ester resins, epoxy resins, phenol resins, melamine resins, and polyurethane resins.

Also, the resin used for the flexible resin layer 10 may be silicon resin (silicone) or rubber.

The thickness of the flexible resin layer 10 is arbitrary. The thickness of one flexible resin layer 10 on the impact body side and the thickness of the other flexible resin layer 10 on the protected body 90 side may be the same or different. As an example, the thickness of the flexible resin layer 10 is 0.1 mm or more and 10.0 mm or less.
The thickness of the fiber-reinforced plastic layer 11 is arbitrary. As an example, the thickness of the fiber-reinforced plastic layer 11 is 0.1 mm or more and 10.0 mm or less.
The thickness of the laminated member 101 is arbitrary. As an example, the thickness of the lamination member 101 is 0.3 mm or more and 30 mm or less.

The fiber-reinforced plastic layer 11 is a composite material in which fibers are combined with plastic to improve strength. Examples of such fibers include aramid fibers or carbon fibers. The fiber-reinforced plastic layer 11 is an aramid fiber-reinforced plastic layer when aramid fibers are included as the fibers. The fiber-reinforced plastic layer 11 is a carbon-fiber-reinforced plastic layer when carbon fibers are included as the fibers. It is preferable that the fiber-reinforced plastic layer 11 is hard to crack. The fiber-reinforced plastic layer 11 is preferably made of a ductile material that undergoes ductile fracture. If the fiber-reinforced plastic layer 11 is brittle fractured, the outer flexible resin layer 10 is preferably ductile fractured. The fiber-reinforced plastic layer 11 preferably has excellent piercing resistance when an object with a sharp tip is assumed as the collision object.

The plastic used for the fiber-reinforced plastic layer 11 may be either a thermoplastic resin or a thermosetting resin.

Examples of thermoplastic resins used for the fiber-reinforced plastic layer 11 include polyethylene, polycarbonate, polypropylene, polyamide, polyamideimide, polysulfone, polyacetal, polyphenylene ether, polyphenylene sulfide, polyarylate, polyetherimide, polyethersulfone, and polyetherketone. , polyvinyl chloride, polyvinylidene chloride, polystyrene, EVA resin, AS resin, ABS resin, PET resin and methacrylic resin, and blend polymers thereof.

As the thermoplastic resin used for the fiber-reinforced plastic layer 11, polyolefin-based resins such as polyethylene and polypropylene are particularly preferably used. Among polyolefin-based resins, polyethylene can be particularly preferably used because it is lightweight and has excellent impact resistance. Polyethylene has various characteristics, and any of them may be used according to the need. For example, polyethylenes are generally classified into high density polyethylene, low density polyethylene, very low density polyethylene, linear low density polyethylene, and ultra high molecular weight polyethylene. Each classification is as described above. Ultra high molecular weight polyethylene can be used more preferably because it is lightweight with a specific gravity of 0.92 to 0.94 and has extremely high impact resistance.

Examples of thermosetting resins used for the fiber-reinforced plastic layer 11 include unsaturated polyester resins, vinyl ester resins, epoxy resins, phenol resins, melamine resins, and polyurethane resins.

The flexible resin of the flexible resin layer 10 and the plastic of the fiber-reinforced plastic layer 11 may be the same kind of resin, or may be different resins. Also, the flexible resin layer 10 on one side (for example, the upper side in the drawing) and the flexible resin layer 10 on the other side (for example, the lower side in the drawing) may be made of the same kind of resin, or may be made of different resins. There may be.

The laminated member 101 is provided with flexible resin layers 10, 10 on both outermost layers. Since the flexible resin layer 10 has elasticity, the flexible resin layer 10 is not easily deformed and damaged even when hit by a collision object. Since the fiber-reinforced plastic layer 11 is reinforced with fibers, the fiber-reinforced plastic layer 11 is less likely to break even when hit by a collision object. Therefore, even if an object hits it, the object to be protected can be sufficiently protected. In addition, even if the fiber-reinforced plastic layer 11 inside is damaged by a collision object, the damaged fiber-reinforced plastic layer 11 is unlikely to be exposed to the outside because of the flexible resin layers 10 , 10 provided. Therefore, even if it is damaged, it is possible to prevent injury to the object to be protected and surrounding people, animals, and objects.

The method for manufacturing the laminated member 101 includes laminating the sheet-like flexible resin layer 10, the sheet-like fiber-reinforced plastic layer 11, and the sheet-like flexible resin layer 10, and integrating them by, for example, heating and pressurizing them. manufactured by Alternatively, the sheet-like flexible resin layer 10, the sheet-like fiber-reinforced plastic layer 11, and the sheet-like flexible resin layer 10 may be adhered and integrated. The fiber-reinforced plastic layer 11 may be manufactured by a prepreg manufacturing method using a known prepreg. A prepreg is an intermediate material in which fibers are pre-impregnated with a resin (matrix). Prepregs include those that use a thermoplastic resin as a matrix and those that use a thermosetting resin as a matrix. Either can be used. It can be molded by heating (heating and pressurizing) the prepreg.

FIG. 2 illustrates a schematic diagram of a hot press machine 601 used when manufacturing the laminated member 101 by heating and pressurizing it.

The hot press machine 601 includes heating and pressurizing members 611 and 612, molds 615 and 616, and a thermometer 618, for example. The heating and pressurizing member 611 is, for example, a fixed table having a heater inside. The heating/pressurizing member 612 is, for example, a moving table having a heater inside. A heating/pressurizing member 612 is configured to be movable toward a heating/pressurizing member 611 so as to press molds 615 and 616 in the directions indicated by the pair of arrows in the figure.

The molds 615 and 616 are molds for molding the laminated member 101 into any desired shape. The mold 615 is provided with a thermometer 618 for measuring the temperature of the mold 615 (laminated member 101). The temperature of the heating/pressurizing members 611 and 612 can be controlled so that the temperature measured by the thermometer 618 becomes a desired temperature.

In the laminated member 101, the sheet-like flexible resin layer 10, the sheet-like fiber-reinforced plastic layer 11, and the sheet-like flexible resin layer 10 are accommodated in molds 615 and 616, and the molds 615 and 616 are heated. Predetermined temperature and pressure are applied by applying heat and pressure by the pressure members 611 and 612, and they are integrally molded and manufactured.

When the same kind of thermoplastic resin or thermosetting resin is used for both the flexible resin of the flexible resin layers 10, 10 of the laminated member 101 and the plastic of the fiber-reinforced plastic layer 11, as an example, Laminate member 101 can be manufactured as follows. For example, the method for manufacturing the laminated member 101 includes disposing sheet-like fibers between a plurality of stacked sheet-like resin raw materials, applying heat and pressure to impregnate the fibers with the resin raw materials, and forming the fiber-reinforced plastic layer 11 . are formed, and flexible resin layers 10, 10, which will be the outermost layers, are formed. A specific description will be given below.

FIG. 3 shows a schematic diagram showing a method for manufacturing the laminated member 101. As shown in FIG. Sheet-like resin raw materials (resin raw material sheets) 10a, 10a shown in FIG. The sheet-shaped fibers (fiber sheet) 11 a are raw materials for fibers of the fiber-reinforced plastic layer 11 . The fibers 11a are aramid fibers or carbon fibers. As shown in the figure, the sheet-like resin raw material 10a, the sheet-like fiber 11a, and the sheet-like resin raw material 10a are stacked in order according to the layer structure of the laminated member 101, and pressed by a hot press machine 601 ( (See FIG. 2).

Molds 615 and 616 are heated and pressed by heating and pressing members 611 and 612 of a hot press machine 601 . When the resin raw material 10a is a thermoplastic resin, it melts with heat and becomes fluid. When the resin raw material 10a is a thermosetting resin, it becomes fluid by heating below the curing temperature. The resin raw materials 10a, 10a that have become fluid impregnate (penetrate) between the fibers 11a by pressurization. When the resin raw material 10a is a thermosetting resin, it is heated to a curing temperature after impregnation. When the heating is stopped while the pressurization is continued and the molds 615 and 616 are cooled, the resin raw material 10a is cured and the laminated member 101 shown in FIG. 3(b) is completed. The resin raw materials 10a, 10a are used in amounts sufficient to form the flexible resin layers 10, 10 and the fiber-reinforced plastic layer 11 having a predetermined thickness.

(Second embodiment)
FIG. 4 shows a schematic enlarged cross-sectional view showing the state of use of the laminated member 102 of the present invention. In addition, the same code|symbol is attached|subjected about the already demonstrated structure, and detailed description is abbreviate|omitted.

The laminated member 102 is for preventing the protected body 90 from being damaged by an object (not shown) hitting the protected body 90 . Although the figure shows an example in which the laminated member 102 is arranged on the surface of the object to be protected 90 , it may be arranged on the surface of the collision object, or the collision object and the object to be protected 90 may be arranged. It may be placed anywhere in between.

Laminated member 102 has a fiber-reinforced plastic layer 11 containing plastic and fibers disposed between a pair of outermost flexible resin layers 10 , 10 . The laminated member 102 has a plurality of fiber-reinforced plastic layers 11 . As shown in the figure, the laminated member 102 may have flexible resin layers 10 between adjacent fiber reinforced plastic layers 11 .

The number and thickness of the fiber-reinforced plastic layers 11 and the number and thickness of the inner flexible resin layers 10 may be set according to the required and desired strength.

The flexible resin layer 10 is made of any one of thermoplastic resin, thermosetting resin, silicone resin, and rubber, as described above. The thermoplastic resin forming the flexible resin layer 10 is preferably a polyolefin resin.

The fiber-reinforced plastic layer 11 is preferably made of aramid fiber-reinforced plastic or carbon fiber-reinforced plastic, as described above. The plastic is made of thermoplastic resin or thermosetting resin. The thermoplastic resin forming the fiber-reinforced plastic layer 11 is preferably a polyolefin-based resin.

Since the laminated member 102 has a plurality of fiber-reinforced plastic layers 11 , it is superior to the laminated member 101 in impact resistance and puncture resistance. Furthermore, since the laminated member 102 has the flexible resin layer 10 between the fiber-reinforced plastic layers 11 adjacent to each other, it is superior to the laminated member 101 in impact resistance and puncture resistance.

The plurality of fiber-reinforced plastic layers 11 may all be of the same type, or may be of different types. For example, all fiber reinforced plastic layers 11 may be aramid fiber reinforced plastic layers, or all fiber reinforced plastic layers 11 may be carbon fiber reinforced plastic layers. Both the aramid fiber reinforced plastic layer and the carbon fiber reinforced plastic layer may be arranged as the plurality of fiber reinforced plastic layers 11 . The composition such as the material, arrangement, number, thickness of each layer, etc. is arbitrary.

A sheet-like fiber (fiber sheet) containing no resin may be laminated at an arbitrary position between the flexible resin layers 10, 10 which are the outermost layers.

All of the plurality of flexible resin layers 10 may be of the same type, or may be of different types. For example, all the flexible resin layers 10 may be thermoplastic resin layers, or all the flexible resin layers 10 may be thermosetting resin layers. Both thermoplastic resin layers and thermosetting resin layers may be arranged as the plurality of flexible resin layers 10 . The composition such as the material, arrangement, number, thickness of each layer, etc. is arbitrary.

The flexible resin layer 10 may not be provided between all adjacent fiber reinforced plastic layers 11 of the plurality of fiber reinforced plastic layers 11 . That is, some or all of the adjacent fiber-reinforced plastic layers 11 may be in contact with each other.

The method for manufacturing the laminated member 102 includes laminating a plurality of sheet-shaped flexible resin layers 10 and a plurality of sheet-shaped fiber-reinforced plastic layers 11 in the laminated structure of the laminated member 102, and integrating them by, for example, heating and pressing. Or, it is manufactured by bonding and integrating. When heating and pressurizing, the hot press machine 601 shown in FIG. 2 may be used. The fiber-reinforced plastic layer 11 may be manufactured by a prepreg manufacturing method using a known prepreg.

When the same kind of thermoplastic resin or thermosetting resin is used for both the flexible resin of the flexible resin layer 10 of the laminated member 102 and the plastic of the fiber-reinforced plastic layer 11, lamination is performed as follows. Member 102 can be manufactured. For example, the method for manufacturing the laminated member 102 includes disposing sheet-shaped fibers between a plurality of stacked sheet-shaped resin raw materials, applying heat and pressure to impregnate the fibers with the resin raw materials, and forming the fiber-reinforced plastic layer 11 . are formed, and flexible resin layers 10, 10, which will be the outermost layers, are formed. At this time, a plurality of sheet-shaped fibers and a plurality of sheet-shaped resin raw materials are alternately arranged, heated and pressed to form a plurality of fiber-reinforced plastic layers, and the adjacent fiber-reinforced plastic layers are formed. A flexible resin layer may be formed therebetween. A specific description will be given below. It is preferable that all of the plurality of sheet-like thermoplastic resins are of the same type.

FIG. 5 shows a schematic diagram showing a method for manufacturing the laminated member 102. As shown in FIG. A sheet-shaped resin raw material 10a shown in FIG. The sheet-like fibers 11 a are the raw material of the fibers of the fiber-reinforced plastic layer 11 . The sheet-like fibers 11a are aramid fiber sheets or carbon fiber sheets. As shown in the figure, a plurality of sheet-shaped resin raw materials 10a and a plurality of sheet-shaped fibers 11a are alternately stacked so as to match the layer structure of the laminated member 102, and are pressed by a hot press machine 601 (see FIG. 6). 2) are set in the molds 615 and 616.

Molds 615 and 616 are heated and pressed by heating and pressing members 611 and 612 of a hot press machine 601 . When the resin raw material 10a is a thermoplastic resin, it melts with heat and becomes fluid. When the resin raw material 10a is a thermosetting resin, it becomes fluid by heating below the curing temperature. The resin raw material 10a that has become fluid impregnates between the plurality of fibers 11a by pressurization. When the resin raw material 10a is a thermosetting resin, it is heated to a curing temperature after impregnation. When the heating is stopped while the pressurization is continued and the molds 615 and 616 are cooled, the resin raw material 10a is cured and the laminated member 102 shown in FIG. 5B is completed. As the resin raw material 10a, an amount that can form the flexible resin layer 10 and the fiber-reinforced plastic layer 11 with a predetermined thickness is used.

(Third Embodiment)
FIG. 6 shows a schematic enlarged cross-sectional view showing the state of use of the laminated member 103 of the present invention. In addition, the same code|symbol is attached|subjected about the already demonstrated structure, and detailed description is abbreviate|omitted.

The laminated member 103 is for preventing the protected body 90 from being damaged by an object (not shown) hitting the protected body 90 . Although the figure shows an example in which the laminated member 103 is arranged on the surface of the object to be protected 90 , it may be arranged on the surface of the collision object, or the collision object and the object to be protected 90 may be arranged. It may be placed anywhere in between.

Laminated member 103 has fiber-reinforced plastic layers 11 and 12 containing plastic and fibers disposed between a pair of outermost flexible resin layers 10 and 10 . The laminated member 103 has multiple layers of fiber-reinforced plastic layers 11 and 12 . In the laminated member 103, for example, the fiber reinforced plastic layer 11 and the fiber reinforced plastic layer 12 are adjacent to each other.

The flexible resin layer 10 is made of any one of thermoplastic resin, thermosetting resin, silicone resin, and rubber, as described above. The thermoplastic resin forming the flexible resin layer 10 is preferably a polyolefin resin.

The fiber-reinforced plastic layer 11 and the fiber-reinforced plastic layer 12 may be of the same type or of different types. When they are of different types, for example, the fiber-reinforced plastic layer 11 is an aramid fiber-reinforced plastic layer in which a thermoplastic resin (eg, polyester) is reinforced with aramid fibers, and the fiber-reinforced plastic layer 12 is a thermosetting resin (eg, epoxy resin). is a carbon fiber reinforced plastic layer that is reinforced with carbon fiber.

Although not shown, a sheet-like fiber (fiber sheet) containing no resin may be laminated at an arbitrary position between the flexible resin layers 10, 10 which are the outermost layers.

The method for manufacturing the laminated member 103 includes laminating the sheet-like flexible resin layer 10, the sheet-like fiber-reinforced plastic layer 11, and the sheet-like fiber-reinforced plastic layer 12 in the laminated structure of the laminated member 103, and then heating, for example. It is produced by pressurizing and integrating, or by bonding and integrating. When heating and pressurizing, the hot press machine 601 shown in FIG. 2 may be used. The fiber-reinforced plastic layer 12 may be manufactured by a prepreg manufacturing method using a known prepreg.

When the fiber-reinforced plastic layer 12 of the laminated member 103 is made of prepreg, the laminated member 103 can be manufactured as follows. For example, the method for manufacturing the laminated member 103 includes placing sheet-like fibers and sheet-like prepregs between a plurality of stacked sheet-like resin raw materials, and applying heat and pressure to impregnate the resin raw materials into the fibers. A fiber-reinforced plastic layer 11 is formed, a fiber-reinforced plastic layer 12 is formed from a prepreg, and flexible resin layers 10, 10, which are the outermost layers, are formed. A specific description will be given below.

FIG. 7 shows a schematic diagram showing a method for manufacturing the laminated member 103. As shown in FIG. A sheet-shaped resin raw material 10a1 shown in FIG. 7( _a ) is _a raw material for the flexible resin layer 101 shown in FIG. 7(b). The resin raw material 10a1 is _a thermoplastic resin or a thermosetting resin. The sheet-like resin raw material 10a2 shown in _FIG . 7(a) is the plastic raw material of the flexible resin layer 102 and the fiber _- reinforced plastic layer 11 shown in FIG. 7(b). _The resin raw material 10a2 is a thermoplastic resin or a thermosetting resin. The sheet-like prepreg 12a is an intermediate material in which fibers are previously impregnated with a resin (matrix). The fibers of the prepreg 12a are aramid fibers or carbon fibers. The resin of the prepreg 12a is thermoplastic resin or thermosetting resin.

The sheet-shaped fibers (fiber sheet) 11 a are raw materials for fibers of the fiber-reinforced plastic layer 11 . The sheet-like fibers 11a are aramid fiber sheets or carbon fiber sheets. As shown in the figure, the resin raw material 10a ₁ , the prepreg 12a, the fibers 11a, and the resin raw material 10a ₂ are laminated in the order according to the layer structure of the laminated member 103, and the hot press machine 601 (see FIG. 2) ) are set in the molds 615 and 616 of .

When the hot press machine 601 heats and presses the molds 615 and 616, the resin raw material _10a1 becomes fluid and the flexible resin layer ₁₀₁ is formed. Also, the fiber-reinforced plastic layer 12 is formed by heating and pressurizing the prepreg 12a. Also, the resin raw material 10a2, which has become fluid by heating, impregnates between fibers of the fibers 11a by applying pressure, and the fiber _- reinforced plastic layer 11 and the flexible resin layer 102 _are formed. When at _{least one} of the resin raw material 10a1 and the resin raw material 10a2 is a thermosetting resin, it is heated to a curing temperature after impregnation. When the heating is stopped while the pressurization is continued and the molds 615 and 616 are cooled, the laminated member 103 shown in FIG. 7B is completed. As the resin raw material 10a1, an amount that can form _a flexible resin layer 101 having _a predetermined thickness is used. As the resin raw material 10a2, an amount that can form the flexible resin layer ₁₀₂ and the fiber reinforced plastic layer ₁₁ with a predetermined thickness is used. In the example shown in _FIG . 7A, since the resin raw material 10a2 forms the flexible resin layer 102 and the fiber _- reinforced plastic layer ₁₁ , the resin raw material 10a2 forms _only the flexible resin layer 101. A thicker one is used.

(Fourth embodiment)
FIG. 8 shows a schematic diagram showing how the protective clothing 31 of the present invention is used. The figure shows a person 91 wearing protective clothing 31 . In addition, the same code|symbol is attached|subjected about the already demonstrated structure, and detailed description is abbreviate|omitted.

The protective clothing 31 has the laminated member 101 of the present invention arranged in the clothing main body 33 . A laminate member 102 or laminate member 103 may be disposed on the protective garment 31 . The clothing main body 33 preferably has a mounting member 35 to which the laminated member 101 can be detachably mounted.

The protective clothing 31 (clothing main body 33) is worn by the person 91. As shown in FIG. In the figure, an apron is shown as an example of clothing. The protective clothing 31 is not limited as long as it is worn by the person 91. For example, clothing, outerwear, underwear, tops, bottoms, jumpers, pants, skirts, hats, masks, face masks, and balaclavas. , gloves, shoes, socks, belly band, neck band, knee cover, knee cover, gauntlet, ear cover, belt, glasses, accessories, and the like.

The mounting member 35 is, for example, a pocket that can detachably accommodate the laminated member 101 . It is preferable that the mounting member 35 is provided with an opening/closing member (not shown) such as a fastener or a button capable of opening/closing the opening of the pocket. When the opening/closing member is provided, the lamination member 101 does not drop off from the mounting member 35, and the lamination member 101 can be easily attached to and detached from the mounting member 35. FIG.

The mounting member 35 may be a known detachable mounting member such as a pair of hook-and-loop fasteners, a hook button, or a fitting fastener, which are provided at opposing portions of the layered member 101 and the clothing main body 33 . .

As shown in the figure, the laminated member 101-1 is attached to the attachment member 35-1 on the right _side of the person 91, and the laminate member _101-2 is attached to the attachment member 35-2 _on the central _side of the person 91. ₃ is attached to the attachment member 353 _on the left side of the person 91 .

FIG. 9 shows a cross-sectional view of the protective garment 31. As shown in FIG. In order to fit the body shape of the person 91, the central laminated member 101 ₂ is formed with a gently curved surface, and the side laminated members 101 ₁ and 101 ₃ are formed with curved surfaces that are more curved than the laminated member 101 ₂ . It is If the laminated member 101 can be deformed secondarily, it is preferable because the shape such as the degree of bending can be changed according to the body shape of the person 91 . Alternatively, for example, a flat laminated member 101 may be manufactured in advance and then secondarily formed into a shape suitable for the site to be used.

For example, when the flexible resin layers 10, 10 and the fiber-reinforced plastic layer 11 (12) constituting the laminated member 101 (102, 103) are all made of thermoplastic resin, the shape is deformed by heating. Since it can be molded by pressing, it is possible to match the shape of the part to be used, which is preferable. For example, as the laminated member 101 (102, 103), polyethylene, which is a thermoplastic resin, is used as the resin of the flexible resin layer 10 and the fiber-reinforced plastic layer 11 (12), and the fiber of the fiber-reinforced plastic layer 11 (12) is The use of aramid fiber (carbon fiber) is preferable because it can be molded secondarily by heating. In particular, the lamination member 101 (102, 103) using polyethylene and aramid fiber is more preferable because it is lightweight and thus less burdensome for the person 91 to wear and has excellent impact resistance and puncture resistance.

Note that the laminated member 101 (102, 103) can be placed on any object other than clothes. For example, they may be placed on automobiles, wheelchairs, furniture, fittings, building materials, electric appliances, wood products, industrial products, glass products, and the like.

Examples 1 to 11, which were produced as prototypes, will be described below. These Examples 1 to 11 were subjected to a piercing test (a piercing resistance test) in which a flying object with a sharp tip was struck at high speed as a collision object.

[Example 1]
Example 1 is an example of the laminated member 102 shown in FIG. 4, and is configured to have a laminated structure of nine layers in the following order from the top of the figure.
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)

1. Features Aramid fiber reinforced thermoplastic (UHMWPE/AF) is a composite material made by reinforcing ultra-high molecular weight polyethylene (UHMWPE), a thermoplastic resin, with aramid fiber (AF). UHMWPE is lightweight and has excellent impact resistance. AF has excellent impact resistance and cut resistance.

2. Molding Method FIG. 10 shows the laminated structure at the time of molding (at the time of manufacture). A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.5 mm was used. Aramid fiber fabric AF (Kevlar, Dupont Toray) was used with a twill weave thickness of 0.5 mm. As shown in FIG. 5(a), more specifically, FIG. 10, ultra-high molecular weight polyethylene UHMWPE (resin raw material 10a) and aramid fiber AF (fiber 11a) were laminated. Ultra-high-molecular-weight polyethylene and aramid fiber fabric were alternately laminated to form a [0 _f4 ] laminate structure with a total of 9 sheets, 5 UHMWPE and 4 AF. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated (hot pressed). The completed laminated member 102 (molded body) has a thickness of 3.65 mm and a density of 0.91 g/cm ³ .

3. Puncture Test Method Puncture resistance was evaluated using an impact tester using a gas gun. FIG. 11 shows an outline of the impact tester 701. As shown in FIG. As an example, the impact tester 701 includes an air compressor (air compressor) 702, a regulator (pressure regulator) 703, a pressure gauge 704, a solenoid valve 705, a striker 707 simulating a collision body, and a barrel (barrel) into which the striker is inserted. 706. A barrel 706 is connected from the air compressor 702 via a regulator 703 and an electromagnetic valve 704 . A pressure gauge 704 is provided between the regulator 703 and the solenoid valve 705 to measure the pressure of the compressed air. Compressed air is released in the barrel 706 by opening the solenoid valve 704 to push out the striker 707 and make it collide with the test piece 708 (laminated member 102 ) placed at the tip of the barrel 706 . The speed v of the striker 707 was set to v=35 m/s or more, and the test was performed with the kinetic energy K set to K=10 J or more.

FIG. 12 shows the shape of the striker 707 and the method of fixing the test piece 708 (laminated member 102). The striker 707 is a 2 mm-thick plate having a sharp tip angle α=30°. The pierce test was performed by setting the test piece 708 on the support table 721 with reference to the three-point bending impact test of JIS K 7084:1993. The test piece 708 was fixed with both ends freely supported by a pair of fulcrums 722 so as to be bent and deformed when an impact load was applied. The test pieces were strip-shaped with dimensions of 100 x 10 x 3.65 mm, and were taken out parallel to the 0° orientation of the aramid fiber fabric. In addition, a silicone rubber 723 simulating a human body was placed behind the test piece 708 so that it can be used even if the body to be protected is a human body.

4. Test Results The appearance observation after the puncture test for Example 1 is shown in FIG. The striker penetrated the specimen slightly, but not enough to cause serious damage to the protected object. Further, in Example 1, since ultra-high molecular weight polyethylene UHMWPE and aramid fiber AF, which are ductile materials, are used, the fracture mode of UHMWPE/AF was ductile fracture. For example, carbon fiber reinforced plastic CFRP with epoxy resin as the base material undergoes brittle fracture, but in that case, there is a risk of secondary damage due to burrs and scattering of fragments. Since UHMWPE/AF is a ductile fracture, it does not damage the protected object from the viewpoint of secondary damage to the protected object due to the fractured material.
Therefore, Example 1 has a density of 0.91 g/cm ³ and thus is light in weight, has excellent impact absorption properties, and is characterized by being difficult to break due to ductile fracture. In addition, Example 1 uses a thermoplastic resin and deforms when heat is applied, so it has the advantage of being excellent in secondary workability.

[Example 2]
Example 2 is an example of the laminated member 102 shown in FIG. 29 layers are laminated alternately to form a laminated structure of 29 layers in order from the top of the figure as follows.
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermoplastic (UHMWPE/CF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermoplastic (UHMWPE/CF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
・
・
・
Fiber reinforced plastic layer 11: carbon fiber reinforced thermoplastic (UHMWPE/CF)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)

1. Characteristics Carbon fiber reinforced thermoplastic (UHMWPE/CF) is a composite material in which ultra high molecular weight polyethylene (UHMWPE) is reinforced with carbon fiber (CF). Ultra high molecular weight polyethylene UHMWPE is lightweight and has excellent impact resistance. Carbon fiber CF is excellent in specific strength and specific rigidity.

2. Molding method Fig. 14 shows the laminated structure at the time of molding. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.13 mm was used. The carbon fiber fabric CF (Torayca cloth CO6142, Toray Industries, Inc.) of plain weave with a thickness of 0.15 mm was used. As shown in FIG. 5(a), specifically, FIG. 14, ultra-high molecular weight polyethylene (resin raw material 10a) and carbon fiber fabric (fiber 11a) are alternately laminated, and a total of 29 sheets of 15 UHMWPE and 14 CF [ 0 _f14 ]. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 102 (molded body) has a thickness of 3.17 mm and a density of 1.11 g/cm ³ .

3. Test method The same puncture test as in Example 1 was performed. The test piece size is 100 x 10 x 3.17 mm, and is taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test Results The appearance observation after the puncture test for Example 2 is shown in FIG. The striker penetrated the specimen slightly, but not enough to cause serious damage to the protected object. In addition, the fracture mode of UHMWPE/CF was ductile fracture because UHMWPE, which is a ductile material, is used as the base material of UHMWPE/CF. For example, in the case of brittle fracture such as carbon fiber reinforced plastic CFRP with epoxy resin as the base material, there is a risk of secondary damage due to the generation of burrs and the scattering of fragments. Since this material is a ductile fracture, it does not damage the object to be protected from the viewpoint of secondary damage caused by the fractured material.
Therefore, Example 2 has a density of 1.11 g/cm ³ and a light weight, and furthermore has excellent strength and good impact absorption. Moreover, Example 2 uses a thermoplastic resin and deforms when heat is applied, so it has the advantage of being excellent in secondary workability.

[Example 3]
Example 3 is an example of the laminated member 101 shown in FIG. 1, which is configured to have a laminated structure of three layers in the following order from the top of the figure.
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermosetting plastic (CFRP)
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)

1. Features Example 3 (UHMWPE+CFRP+UHMWPE) has a sandwich structure in which Carbon Fiber Reinforced Plastics (CFRP) is sandwiched between ultra-high molecular weight polyethylene UHMWPE on the collision object side and the protected object side. It is a laminated member. This laminated member is described as UHMWPE+CFRP+UHMWPE. Carbon fiber reinforced thermosetting plastic CFRP has high strength and excellent puncture resistance. On the other hand, since it is a brittle material, it is inferior in impact resistance and tends to have a sharp fracture surface. Therefore, ultra-high molecular weight polyethylene UHMWPE, which is a ductile material with excellent impact resistance, is placed on both surfaces of CFRP.

2. Molding Method FIG. 16 shows the laminated structure during molding. The carbon fiber reinforced thermosetting plastic CFRP used a material obtained by molding 16 sheets of unidirectional fiber prepreg in a [(0/±45/90) ₂ ] _s lamination configuration. A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic. As shown in FIG. 16, this CFRP was sandwiched between ultra-high-molecular-weight polyethylene UHMWPE, which is slightly larger than the CFRP, on the collision object side and the protected object side to form a sandwich structure. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.5 mm was used. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 101 (molded body) has a thickness of 2.67 mm and a density of 1.37 g/cm ³ .

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 2.67 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test Results The appearance observation after the puncture test in Example 3 is shown in FIG. In Example 3, no penetration to the side of the object to be protected was observed. Because carbon fiber reinforced thermosetting plastic CFRP is a brittle material, it is accompanied by burrs and scattering of fragments when broken. Therefore, there is a risk of secondary damage due to destruction of CFRP. However, since the collision object side and the protected side are sandwiched between the thermoplastic resin UHMWPE, which is a ductile material, the scattering of burrs and fragments caused by CFRP is suppressed. Therefore, the object to be protected is not damaged from the viewpoint of secondary damage caused by the destroyed material.
Example 3 has high puncture resistance due to the carbon fiber reinforced thermosetting plastic with high strength, and is sandwiched by ultra-high molecular weight polyethylene UHMWPE, which is a ductile material, resulting in ductile fracture, which has the advantage of not damaging the protected object. be.

[Example 4]
Example 4 is an example of the laminated member 101 shown in FIG. 1, which is configured to have a laminated structure of three layers in the following order from the top of the figure.
Flexible resin 10: Polycarbonate (PC)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermosetting plastic (CFRP)
Flexible resin 10: Polycarbonate (PC)

1. Features Example 4 (PC+CFRP+PC) is a laminated member having a sandwich structure in which a carbon fiber reinforced thermosetting plastic (CFRP) as a core material is sandwiched between polycarbonate (PC), which is a thermoplastic resin. This laminated member is described as PC+CFRP+PC.

2. Molding Method FIG. 18 shows the laminated structure at the time of molding. Carbon fiber reinforced thermosetting plastic CFRP, which is the core material, is made of 16 sheets of unidirectional fiber prepreg laminated in [(0/±45/90) ₂ ] _s . The carbon fiber reinforced plastic CFRP used a prepreg material (P17045G-12, Toray Industries, Inc.) in which carbon fibers (T1100GC, Toray Industries, Inc.) were impregnated with epoxy resin. As shown in FIG. 18, this CFRP was sandwiched between polycarbonate PCs to form a sandwich structure. Polycarbonate PC used a film with a thickness of 0.5 mm. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 101 (molded body) has a thickness of 2.67 mm and a density of 1.47 g/cm ³ .

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 2.67 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test Results The appearance observation after the puncture test in Example 4 is shown in FIG. In Example 4, no penetration to the side of the object to be protected was observed. Because carbon fiber reinforced thermosetting plastic CFRP is a brittle material, it is accompanied by burrs and scattering of fragments when broken. Therefore, there is a risk of secondary damage due to material destruction. In order to suppress secondary damage, we adopted a sandwich structure in which CFRP was sandwiched between ductile PC materials, but the PC on the protected side cracked due to the impact. However, in this test, the side surfaces of the test piece in the longitudinal direction were not covered with resin for the convenience of test piece preparation. In actual use, all sides are covered with resin, so peeling and cracking of the PC on the protected side, as seen in this test, are unlikely to occur on the side of the impact body.
Example 4 is a carbon fiber reinforced thermosetting plastic with high strength and has high puncture resistance, and since it is sandwiched by polycarbonate PC, which is a ductile material, it becomes ductile fracture and has the advantage of not damaging the protected object.

[Example 5]
Example 5 is an example of the laminated member 101 shown in FIG. 1, which is configured to have a laminated structure of three layers in the following order from the top of the figure.
Flexible resin 10: Polycarbonate (PC)
Fiber-reinforced plastic layer 11: carbon fiber thermoplastic (UHMWPE/CF)
Flexible resin 10: Polycarbonate (PC)

1. Features Example 5 (PC+UHMWPE/CF+PC) is a carbon fiber thermoplastic (UHMWPE/CF) made by reinforcing ultra-high molecular weight polyethylene (UHMWPE) with carbon fiber (CF) as a core material, and polycarbonate (PC). This is a laminated member with a sandwich structure. This laminated member is described as PC+UHMWPE/CF+PC.

2. Molding Method FIG. 20 shows the laminated structure during molding. UHMWPE/CF, which is the core material, is a 0.13 mm thick ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saksin Kogyo Co., Ltd.) and a carbon fiber fabric CF (Torayca cloth CO6142, Toray Industries, Inc., a plain weave thickness of 0.15 mm). 5(a), specifically, as shown in FIG. 14, ultra-high molecular weight polyethylene and carbon fiber fabric are alternately laminated, and a total of 29 sheets [0 _f14 ] of 15 UHMWPE and 14 CF are laminated. Molded by Furthermore, as shown in FIG. 20, this UHMWPE/CF was sandwiched between polycarbonate PCs to form a sandwich structure. Polycarbonate PC used a film with a thickness of 0.5 mm. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 101 (molded body) has a thickness of 4.17 mm and a density of 1.13 g/cm ³ .

3. Test method The same puncture test as in Example 1 was performed. The test piece size is 100 x 10 x 4.17 mm, and is taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test Results In Example 5, although it stabbed to some extent, it did not cause serious damage to the object to be protected. In addition, the fracture mode of UHMWPE/CF was ductile fracture because UHMWPE, which is a ductile material, is used as the base material of UHMWPE/CF. For example, in the case of brittle fracture such as carbon fiber reinforced plastic CFRP with epoxy resin as the base material, there is a risk of secondary damage due to the generation of burrs and the scattering of fragments. Since this material is a ductile fracture, it does not damage the object to be protected from the viewpoint of secondary damage caused by the fractured material.

[Example 6]
Example 6 is an example of the laminated member 103 shown in FIG. 6, and is configured to have a laminated structure of four layers in the following order from the top of the figure.
Flexible resin layer 10: Ultra high molecular weight polyethylene (UHMWPE)
Fiber reinforced plastic layer 12: carbon fiber reinforced thermosetting plastic (CFRP)
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF)
Flexible resin layer 10: Ultra high molecular weight polyethylene (UHMWPE)

1. Features Example 6 (UHMWPE+CFRP+UHMWPE/AF+UHMWPE) is a carbon fiber reinforced thermosetting plastic (CFRP) with ultra high molecular weight polyethylene (UHMWPE) on the impact body side and aramid fiber reinforced thermoplastic (UHMWPE) on the protected body side. /AF) and ultra-high molecular weight polyethylene (UHMWPE). This laminated member is described as UHMWPE+CFRP+UHMWPE/AF+UHMWPE. Carbon fiber reinforced thermosetting plastic CFRP has high strength and excellent puncture resistance. On the other hand, since it is a brittle material, it is inferior in impact resistance and tends to have a sharp fracture surface. Therefore, ultra-high molecular weight polyethylene, which is a ductile material with excellent impact resistance, and aramid fiber, which has excellent impact resistance and cut resistance, are placed on the surface of CFRP.

2. Molding Method FIG. 21 shows the laminated structure during molding. The carbon fiber reinforced thermosetting plastic CFRP was made by molding 16 sheets of unidirectional fiber prepreg in a [(0/±45/90) ₂ ] _s lamination structure. A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic. As shown in FIG. 21, this CFRP was laminated with aramid fiber AF and sandwiched between ultra-high molecular weight polyethylene UHMWPE to form a sandwich structure. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.5 mm was used. Aramid fiber fabric AF (Kevlar, Dupont Toray) was used with a twill weave thickness of 0.5 mm. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 103 (molded body) has a thickness of 2.98 mm and a density of 1.28 g/cm ³ .

3. Test method The same puncture test as in Example 1 was performed. The test piece size is 100 x 10 x 2.98 mm, and is taken out parallel to the 0° orientation of the carbon fiber fabric. Moreover, the same test was performed by turning the laminated member upside down.

4. Test Results FIG. 22 shows the observation of the appearance of the body to be protected after the puncture test of Example 6 (UHMWPE+CFRP+UHMWPE/AF+UHMWPE). Fig. 22(a) shows "the condition in which the aramid fiber AF is laminated on the side of the object to be protected" as shown in Fig. 6, and Fig. 22(b) shows "the condition in which the aramid fiber AF is It is a condition that it is laminated on the impact body side. No penetration to the protected object side was observed under either condition. Therefore, no difference was observed depending on the lamination position of the aramid fibers. Because carbon fiber reinforced thermosetting plastic CFRP is a brittle material, it is accompanied by burrs and scattering of fragments when broken. Therefore, there is a risk of secondary damage due to material destruction. However, burrs and splinters caused by CFRP are suppressed by sandwiching the ductile thermoplastic resin UHMWPE, which is a ductile material, and the aramid fiber fabric AF, which is highly resistant to cuts and impacts, on the collision object side and the protected object side. Therefore, there is an advantage that the object to be protected is not damaged from the viewpoint of secondary damage caused by the destroyed material.

[Example 7]
Example 7 is an example of the laminated member 102 shown in FIG. 4, which is configured in a laminated structure of seven layers in the following order from the top of the figure.
Flexible resin 10: ultra high molecular weight polyethylene (UHMWPE),
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF),
ultra-high molecular weight polyethylene (UHMWPE) as the flexible resin 10;
Fiber reinforced plastic layer 11: carbon fiber reinforced thermosetting plastic (CFRP),
Flexible resin 10: ultra high molecular weight polyethylene (UHMWPE),
Fiber-reinforced plastic layer 11: aramid fiber-reinforced thermoplastic (UHMWPE/AF),
Flexible resin 10: Ultra high molecular weight polyethylene (UHMWPE)

1. Features In Example 7 (UHMWPE/AF+CFRP+UHMWPE/AF), a carbon fiber reinforced thermosetting plastic CFRP is sandwiched between aramid fiber reinforced thermoplastic UHMWPE/AF in which ultra high molecular weight polyethylene UHMWPE is reinforced with aramid fiber AF. It is a laminated member with a sandwich structure. This laminated member is described as UHMWPE/AF+CFRP+UHMWPE/AF. A UHMWPE layer is formed between UHMWPE/AF and CFRP, and a UHMWPE layer is formed between CFRP and UHMWPE/AF. In addition, a layer of UHMWPE is formed on both outermost layers of Example 7. CFRP, a carbon fiber reinforced thermosetting plastic, has high strength and excellent puncture resistance. Therefore, aramid fiber-reinforced thermoplastic, which is a ductile material with excellent impact resistance, was placed on the surface of CFRP.

2. Molding Method FIG. 23 shows the laminated structure at the time of molding. Carbon fiber reinforced thermosetting plastic (CFRP) is made of 8 sheets of unidirectional fiber prepreg laminated in [0/±45/90] _s . A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic. As shown in FIG. 23, this CFRP was sandwiched between aramid fiber-reinforced thermoplastic UHMWPE/AF in which ultra-high molecular weight polyethylene UHMWPE was reinforced with aramid fiber AF to form a sandwich structure. Ultra-high-molecular-weight polyethylene UHMWPE and aramid fiber fabric AF were alternately laminated to form a [0 _f1 ] laminate structure with a total of 3 sheets, 2 UHMWPE and 1 AF. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.5 mm was used. Aramid fiber fabric AF (Kevlar, Dupont Toray) was used with a twill weave thickness of 0.5 mm. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. The completed laminated member 102 (molded body) has a thickness of 3.39 mm and a density of 1.09 g/cm ² .

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 3.39 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test Results The appearance observation after the puncture test in Example 7 is shown in FIG. In Example 7, no penetration to the side of the object to be protected was observed. Because carbon fiber reinforced thermosetting plastic CFRP is a brittle material, it is accompanied by burrs and scattering of fragments when broken. Therefore, there is a risk of secondary damage due to material destruction. However, burrs and splinters caused by CFRP are suppressed by sandwiching aramid fiber-reinforced thermoplastic UHMWPE/AF, which is a ductile material and has high cut resistance and impact resistance, on the collision object side and the protected object side. . Therefore, there is an advantage that the object to be protected is not damaged from the viewpoint of secondary damage caused by the destroyed material.

[Example 8]
Example 8 is an example of the laminated member 101 shown in FIG. 1, which has a three-layer laminated structure in the following order from the top of the figure.
Flexible resin 10: silicone rubber (Silicone: silicon resin)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermosetting plastic (CFRP)
Flexible resin 10: silicone rubber (Silicone: silicon resin)

1. Features Example 8 (Silicone+CFRP+Silicone) is a laminated member having a sandwich structure in which carbon fiber reinforced thermosetting plastic CFRP is sandwiched between silicone rubbers (silicon resin).
This material has a high-strength carbon fiber reinforced thermosetting plastic CFRP core material with excellent puncture resistance sandwiched between high-strength silicone rubbers to create a sandwich structure. also has the advantage of not damaging the object to be protected.

2. Molding Method For the carbon fiber reinforced thermosetting plastic CFRP used as the core material, a material obtained by molding 16 sheets of unidirectional fiber prepreg in a [(0/±45/90) ₂ ] _s laminated configuration was used. A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic. This CFRP is sandwiched between silicone rubber (KE-1300T, Shin-Etsu Chemical Co., Ltd.) to form a sandwich structure. The silicone rubber was first mixed with a monomer and a curing agent and formed into a plate-shaped silicone rubber, which was then pasted onto the CFRP and molded. Alternatively, CFRP may be placed in a mold and uncured silicone rubber may be poured into the mold and solidified in a furnace.

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 17.6 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test results Because carbon fiber reinforced thermosetting plastic CFRP is a brittle material, burrs are generated and fragments are scattered when broken. Therefore, there is a risk of secondary damage due to destruction of CFRP. However, since the collision object side and the protected object side are sandwiched by silicone rubber, which is a ductile material, the scattering of burrs and fragments caused by CFRP is suppressed. Therefore, the object to be protected is not damaged from the viewpoint of secondary damage caused by the destroyed material.
Example 8 has the advantage of not damaging the object to be protected because it is made of high-strength carbon fiber reinforced plastic and has high puncture resistance, and is sandwiched by silicone rubber, which is a ductile material.

[Example 9]
The ninth embodiment is an example of the laminated member 101 shown in FIG. 1, and is constructed in the following order of laminated structure from the top of the figure.
Flexible resin 10: silicone rubber (Silicone: silicon resin)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermoplastic UHMWPE/CF
Flexible resin 10: silicone rubber (Silicone: silicon resin)

1. Features Example 9 (Silicone+UHMWPE/CF+Silicone) is a laminated member having a sandwich structure in which carbon fiber reinforced thermoplastic UHMWPE/CF, which is ultra-high molecular weight polyethylene UHMWPE reinforced with carbon fiber CF, is sandwiched between silicone rubbers. be.
This material has a high-strength carbon-fiber-reinforced thermoplastic UHMWPE/CF, which is a core material with excellent puncture resistance, sandwiched between high-strength silicone rubbers to form a sandwich structure. Even if the plastic UHMWPE/CF breaks, it has the advantage of not damaging the object to be protected.

2. Molding method Fig. 14 shows the laminated structure at the time of molding. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.13 mm was used. The carbon fiber fabric CF (Torayca cloth CO6142, Toray Industries, Inc.) of plain weave with a thickness of 0.15 mm was used. As shown in FIG. 5(a), specifically, FIG. 14, ultra-high molecular weight polyethylene (resin raw material 10a) and carbon fiber fabric (fiber 11a) are alternately laminated, and a total of 29 sheets of 15 UHMWPE and 14 CF [ 0 _f14 ]. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. This UHMWPE/CF is sandwiched between silicone rubber (for example, KE-1300T, Shin-Etsu Chemical Co., Ltd.) to form a sandwich structure. For silicone rubber, the monomer and curing agent are first mixed and molded into a plate-shaped silicone rubber, which is then pasted onto UHMWPE/CF for molding. may be poured and solidified in the furnace.

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 19.2 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test results Because carbon fiber CF is a brittle material, burrs are generated and fragments are scattered when broken. Therefore, there is a risk of secondary damage due to destruction of the carbon fiber CF. However, since the collision object side and the protected object side are sandwiched by silicone rubber, which is a ductile material, the scattering of burrs and fragments due to the carbon fiber CF is suppressed. Therefore, the object to be protected is not damaged from the viewpoint of secondary damage caused by the destroyed material.
Example 9 has the advantage of not damaging the object to be protected because it is made of high-strength carbon fiber reinforced plastic and has high puncture resistance, and is sandwiched by silicone rubber, which is a ductile material.

[Example 10]
Example 10 is an example of the laminated member 101 shown in FIG. 1, and has a laminated structure in the following order from the top of the figure.
Flexible resin 10: Polypropylene (PP)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermosetting plastic CFRP
Flexible resin 10: Polypropylene (PP)

1. Features Example 10 (PP+CFRP+PP) is a laminated member having a sandwich structure in which carbon fiber reinforced thermosetting plastic CFRP is sandwiched between thermoplastic resin polypropylene PP.

2. Molding Method For the carbon fiber reinforced thermosetting plastic CFRP used as the core material, a material obtained by molding 16 sheets of unidirectional fiber prepreg in a [(0/±45/90) ₂ ] _s laminated configuration was used. A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic. This CFRP is sandwiched between PP (for example, PP kraft sheet, Akrisande Co., Ltd.) to form a sandwich structure. These are inserted into the metal molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded.

3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 3.10 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test results CFRP, a carbon fiber reinforced thermosetting plastic core material, has high strength and excellent puncture resistance, but PP has poor impact resistance and is easily cracked when impact is applied. Therefore, even if it is possible to prevent flying objects from penetrating through CFRP, which is the core material, the PP existing on the surface is likely to crack. However, since PP is a ductile fracture rather than a brittle fracture, even if it cracks and burrs occur, there is little possibility of secondary damage such as injury.

[Example 11]
Example 11 is an example of the laminated member 101 shown in FIG. 1, and is constructed in the following order of laminated structure from the top of the figure.
Flexible resin 10: Polypropylene (PP)
Fiber reinforced plastic layer 11: carbon fiber reinforced thermoplastic UHMWPE/CF
Flexible resin 10: Polypropylene (PP)

1. Features Example 11 (PP+UHMWPE/CF+PP) has a sandwich structure in which a carbon fiber reinforced thermoplastic UHMWPE/CF, which is made by reinforcing ultra-high molecular weight polyethylene UHMWPE with carbon fiber CF, is sandwiched between thermoplastic resin polypropylene PP. It is a laminated member.

2. Molding method Fig. 14 shows the laminated structure at the time of molding. A film of ultra-high molecular weight polyethylene UHMWPE (Saxin New Light, Saxin Kogyo Co., Ltd.) with a thickness of 0.13 mm was used. The carbon fiber fabric CF (Torayca cloth CO6142, Toray Industries, Inc.) of plain weave with a thickness of 0.15 mm was used. As shown in FIG. 5(a), specifically, FIG. 14, ultra-high molecular weight polyethylene (resin raw material 10a) and carbon fiber fabric (fiber 11a) are alternately laminated, and a total of 29 sheets of 15 UHMWPE and 14 CF [ 0 _f14 ]. These were inserted into the molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded. This UHMWPE/CF is sandwiched between PP (for example, PP kraft sheet, Akrisande Co., Ltd.) to form a sandwich structure. These are inserted into the metal molds 615 and 616 of the hot press machine 601 shown in FIG. 2 and pressed while being heated to be molded.
3. Test method The same puncture test as in Example 1 was performed. The test pieces were strip-shaped with dimensions of 100 x 10 x 4.67 mm, and were taken out parallel to the 0° orientation of the carbon fiber fabric.

4. Test results The carbon fiber reinforced thermoplastic UHMWPE/CF used as the core material has high strength and excellent puncture resistance, but PP has poor impact resistance and is easily cracked when impact is applied. Therefore, even if it is possible to prevent flying objects from penetrating through the UHMWPE/CF core material, the PP present on the surface is susceptible to cracking. However, since PP is a ductile fracture rather than a brittle fracture, even if it cracks and burrs occur, there is little possibility of secondary damage such as injury.

[Comparative Example 1]
As Comparative Example 1 (CFRP), a sheet formed only with a fiber-reinforced plastic layer was experimentally produced, and a piercing test was conducted. Comparative Example 1 is a single fiber-reinforced plastic layer, and no flexible resin layer is provided on both sides.

1. Molding Method In Comparative Example 1, a material was used in which eight sheets of unidirectional fiber prepreg were molded in a lamination configuration of [0/±45/90]s. A prepreg material (P17045G-12, Toray Industries, Inc.) made by impregnating carbon fibers (T1100GC, Toray Industries, Inc.) with epoxy resin was used as the carbon fiber reinforced plastic.

2. Test method The same puncture test as in Example 1 was performed. The test piece size is 100 x 10 x 0.8 mm, and is taken out parallel to the 0° orientation of the carbon fiber fabric. Also, the striker velocity v during the test is v = 54 m/s.

3. Test Results FIG. 25 shows the appearance observation after the puncture test. It can be seen that the striker penetrated and the test piece was broken. FIG. 26 shows an enlarged photograph of the fracture surface of the test piece. It can be seen from FIG. 26 that the fracture surface of CFRP is very sharp. These sharp burrs may damage the object to be protected and cause secondary damage.

[Reference Examples 1 and 2]
A similar piercing test was carried out on iron as Reference Example 1 (test piece size is 100×10×0.5 mm strip shape) and for Reference Example 2 aluminum (test piece size is strip shape 100×10×0.5 mm).

Table 1 shows the puncture test results of Examples 1 to 11, Comparative Example 1, and Reference Examples 1 and 2, and the density of each example.

耐刺突性の評価基準
◎：完全に刺突しない。もしくは被保護体に被害を与えない。
○：多少刺突するが、被保護体に重大な被害を与えない。
△：刺突し、被保護体が軽微な破壊もしくは怪我をする可能性がある。
×：刺突し、被保護体に重大な被害。

二次被害の評価基準
◎：二次被害の原因となる材料のバリや破片の飛散が発生しない。
○：二次被害の原因となる材料のバリや破片の飛散が発生する可能性がある。
△：二次被害が発生し、被保護体が軽微な破壊もしくは怪我をする可能性がある。
×：二次被害により被保護体に重大な被害。

Evaluation criteria for puncture resistance ⊚: Completely not punctured. Or do not damage the object to be protected.
◯: It pierces to some extent, but does not cause serious damage to the object to be protected.
△: Possibility of piercing and minor damage or injury to the object to be protected.
x: Stabbing, serious damage to the object to be protected.

Evaluation criteria for secondary damage ◎: No material burrs or scattering of fragments that cause secondary damage.
○: There is a possibility that burrs of materials and scattering of fragments that cause secondary damage may occur.
△: Secondary damage may occur and the object to be protected may be slightly damaged or injured.
x: Severe damage to the object to be protected due to secondary damage.

10 is a flexible resin layer, 10a is a resin raw material (resin raw material sheet), 11 is a fiber reinforced plastic layer, 11a is a fiber (fiber sheet), 12a is a prepreg, 31 is protective clothing, 33 is a clothing main body, and 35 is 90 is a body to be protected, 91 is a person, 101, 102 and 103 are laminated members, 601 is a hot press machine, 611 is a heating and pressurizing member (fixed table), 612 is a heating and pressurizing member (moving table), 615 and 616 are molds, 618 is a thermometer, 701 is an impact tester, 702 is an air compressor (air compressor), 703 is a regulator (pressure regulator), 704 is a pressure gauge, 705 is a solenoid valve, and 707 is a striker. , 706 is a barrel, 708 is a test piece, 721 is a support base, 722 is a fulcrum, 723 is silicone rubber, and α is the tip angle of the striker.

Claims (16)

A laminated member for protecting an object to be protected, characterized in that a fiber-reinforced plastic layer containing plastic and fibers is disposed between a pair of outermost flexible resin layers. . 2. The laminate member according to claim 1, wherein the flexible resin layer is made of a thermoplastic resin. 3. The laminate member according to claim 2, wherein the thermoplastic resin forming the flexible resin layer is a polyolefin resin. 2. The laminate member according to claim 1, wherein the flexible resin layer is made of silicone resin or rubber. 5. The laminate member according to any one of claims 1 to 4, wherein the plastic is a thermoplastic resin. 6. The laminate member according to claim 5, wherein the thermoplastic resin, which is the plastic, is a polyolefin resin. 5. The laminate member according to any one of claims 1 to 4, wherein the plastic is a thermosetting resin. The laminate member according to any one of claims 1 to 6, wherein the fiber-reinforced plastic layer is an aramid fiber-reinforced plastic layer containing aramid fibers as the fibers. The laminate member according to any one of claims 1 to 6, wherein the fiber-reinforced plastic layer is a carbon-fiber-reinforced plastic layer containing carbon fibers as the fibers. 10. The laminated member according to any one of claims 1 to 9, comprising a plurality of said fiber-reinforced plastic layers. The laminated member according to any one of claims 1 to 6, comprising an aramid fiber reinforced plastic layer containing aramid fibers as said fibers and a carbon fiber reinforced plastic layer containing carbon fibers as said fibers. 12. The laminate member according to any one of claims 1 to 11, wherein a flexible resin layer is arranged between the adjacent fiber-reinforced plastic layers. A protective garment, wherein the laminated member according to any one of claims 1 to 12 is arranged in a garment body. 14. The protective clothing according to claim 13, wherein the clothing body has a mounting member on which the laminated member can be detachably mounted. A method for manufacturing a laminated member for protecting an object to be protected, wherein a sheet-like fiber is placed between a plurality of superimposed sheet-like resin raw materials, and heated and pressurized to turn the resin raw material into the fibers. A method for producing a laminated member, comprising forming a fiber-reinforced plastic layer by impregnation and forming a flexible resin layer to be the outermost layer. By alternately arranging the plurality of sheet-shaped fibers and the plurality of sheet-shaped resin raw materials and applying the heat and pressure, a plurality of fiber-reinforced plastic layers are formed, and between adjacent fiber-reinforced plastic layers. 16. The method of manufacturing a laminated member according to claim 15, wherein the flexible resin layer is formed on the substrate.

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