WO2017195710A1 - Reinforcement fiber structure and method for producing same - Google Patents

Reinforcement fiber structure and method for producing same Download PDF

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Publication number
WO2017195710A1
WO2017195710A1 PCT/JP2017/017285 JP2017017285W WO2017195710A1 WO 2017195710 A1 WO2017195710 A1 WO 2017195710A1 JP 2017017285 W JP2017017285 W JP 2017017285W WO 2017195710 A1 WO2017195710 A1 WO 2017195710A1
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WO
WIPO (PCT)
Prior art keywords
bag
fiber
core member
reinforcing fiber
yarn
Prior art date
Application number
PCT/JP2017/017285
Other languages
French (fr)
Japanese (ja)
Inventor
善光 中川
Original Assignee
中川産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中川産業株式会社 filed Critical 中川産業株式会社
Priority to CN201780028694.1A priority Critical patent/CN109153221B/en
Publication of WO2017195710A1 publication Critical patent/WO2017195710A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/10—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer reinforced with filaments
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/02—Tubular fabrics

Definitions

  • the present invention relates to a reinforced fiber structure in which a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, a fiber reinforced glass member, or the like is pressed, welded, or fired on a reinforced fiber and processed into a predetermined thickness or a predetermined shape. It relates to the manufacturing method.
  • Carbon fiber is lightweight, has high strength, and has a high elastic modulus, and is used as a base material for aircraft structural members, automotive parts, prepregs for sports and leisure goods, and laminated materials.
  • Carbon fiber is a fiber made by carbonizing acrylic fiber or pitch (by-products such as petroleum, coal, coal tar, etc.) at a high temperature. Reinforcing fibers using acrylic fibers are classified as PAN (Polyacrylonitrile), and reinforcing fibers using pitch are classified as pitch (PITCH). Reinforcing fibers are rarely used as a single material, and are mainly used as a composite material combined with a base material such as a synthetic resin.
  • reinforced (fiber) plastics examples include reinforced (fiber) plastics and reinforced fiber reinforced carbon composite materials.
  • Reinforced (fiber) plastic is a plastic product formed by adding glass fiber, nylon, vinylon, etc. as a reinforcing material. It is resistant to impact and is widely used in automobile bodies, boats, airplane hulls, building materials, helmets, fishing gear, etc. ing.
  • Patent Documents 1 to 4 have already been disclosed as composite materials for reinforcing fibers.
  • Patent Document 1 discloses a backrest for an aircraft seat composed of a sandwich plate having a carbon fiber reinforced composite material on both surfaces of a resin non-combustible or flame retardant honeycomb core.
  • Patent Document 2 states that “(Claim 1) is a rod-shaped or cylindrical preform material that is placed in a mold before casting and cast with a matrix metal to form a fiber-reinforced metal composite material.
  • An inner layer composed of reinforcing fibers in which the fiber axes are aligned in a direction coinciding with the axial direction, and a tubular braid or tubular woven body of reinforcing fibers covering the inner layer (hereinafter, both are collectively referred to as a tubular woven / knitted fabric) And a coating material comprising a plurality of layers alternately stacked with each other), and (claim 2) the outermost layer is a coating layer.
  • Preform material. (Claim 3)
  • the reinforcing fiber constituting the inner layer is a reinforcing fiber
  • the tubular woven / knitted fabric constituting the covering layer is a bag knitted or woven knitted with a fiber crossing angle of 10 to 45 degrees.
  • a tubular metal alloy and an FRP prepreg are bonded to each other to form a lightweight and strong structure corresponding to tensile stress and compressive stress (problem).
  • the outer peripheral surface of the metal part 60 has a roughness on the order of microns by chemical etching, and the surface is a partition-like convex part having a height or depth and width of 10 to 500 nm and a length of 10 nm or more by electron microscope observation, Alternatively, an extremely fine concavo-convex shape in which groove-like concave portions are present on the entire surface with a period of 10 to several hundred nm is formed, and the surface is a thin layer 21 of a metal oxide or a metal phosphate, and this is a tubular fiber-reinforced plastic material. 61 is bonded by an epoxy resin agent 62 to form a tubular composite. ”The contents are described.
  • Patent Document 4 provides a technology excellent in practicality and productivity that can easily obtain a long slanted yarn fiber fabric used for a very large FRP product (problem).
  • a method for manufacturing a fiber fabric for FRP in which a mandrel 1 that is movable in the axial direction is inserted into a braider 2 having an oblique yarn supply unit 3, and the oblique yarn supply unit 3 is an outer peripheral surface of the mandrel 1.
  • the oblique thread S is supplied to the mandrel 1 at a predetermined angle ⁇ ⁇ with respect to the axis of the mandrel 1.
  • a plurality of oblique threads S are supplied from the oblique thread supply unit 3 to A tubular fabric 4 is woven on the outer peripheral surface, and then the tubular fabric 4 is cut in the axial direction of the mandrel 1 and the long oblique yarn fiber fabric 5 in which the plurality of oblique yarns S are disposed. "Manufacturing" is described.
  • the carbon fiber has a specific gravity of about 1.8, and is very light, about 1/4 compared with 7.8 of iron, and lighter than 2.7 of aluminum. is there.
  • the specific strength (value obtained by dividing tensile strength by specific gravity) of carbon fiber is 10 times that of iron, and the specific elasticity (value obtained by dividing tensile elastic modulus by specific gravity) is 7 times that of iron. For this reason, it is used as a prepreg for aircraft structural members and automotive parts, and as a base material for laminated materials. On the other hand, it is considered to be weak in bending strength and is not easily bent.
  • Patent Documents 2 to 4 are composite materials of reinforcing fibers that are molded into a predetermined shape and mainly stronger (although it is a member that is strong in bending strength).
  • Patent Document 2 the one constituting the reinforced metal composite material (Patent Document 2), the one in which the tubular fiber-reinforced plastic material 61 is adhered by the epoxy resin agent 62 (Patent Document 3), and the braider 2 having the oblique yarn supply unit 3
  • a mandrel 1 that can move in the axial direction is inserted (Patent Document 4), and its manufacturing method is difficult.
  • an object of the present invention is to efficiently manufacture a reinforcing fiber structure in which a core member and a reinforcing fiber are integrally fused and can be efficiently manufactured. If bending is performed, the bending strength is enhanced and the decomposition process is easy. An object of the present invention is to provide a reinforcing fiber structure and a method for manufacturing the same.
  • the bag-like portion having high tensile resistance is provided in the circumferential direction of the ring by bag weaving using reinforcing fibers on which heat-sealing yarns are arranged, and a core member is inserted into the bag-like portion and crimped.
  • the outer peripheral surface of the core member is integrally reinforced by the covering of the bag-like portion, which is covered by welding or firing.
  • bag weaving is one type of double weaving, and is a weaving method in which both ends of a cloth are joined to the front and back to form a tube (annular), and when cut, it is woven into a bag. By making it into a bag shape, thickness and elasticity are achieved.
  • the bag-like portion having a high tensile strength is provided in the circumferential direction of the annular ring by bag weaving using a reinforcing fiber on which two heat-bonding yarns are arranged.
  • the outer peripheral surface of the core member is integrated with the covering of the bag-like portion by being covered by pressure bonding, welding, or firing. It is a reinforced fiber structure that is reinforced.
  • the present invention also provides a bag-like portion woven seamlessly by bag weaving using a reinforcing fiber having a carbon fiber core yarn covered with a heat-sealing yarn, and is resistant to the circumferential direction of the ring.
  • the bag-like portion having a high tension is provided, or a bag weaving using a reinforcing fiber made of a heat-sealed yarn entangled in a linearly-arranged reinforcing fiber with a high tensile strength in the circumferential direction of the ring
  • the bag-like portion is provided, the core member is inserted into the bag-like portion and covered by pressure bonding, welding, or firing, and the outer peripheral surface of the core member is integrally strengthened by the covering of the bag-like portion. It is characterized by.
  • a seamless bag-like portion is provided by bag weaving using a yarn of reinforcing fiber provided with a heat-sealing yarn, and has a high tensile strength in the circumferential direction of the ring (high tensile strength). Since the bag-like portion is provided, the core member and the reinforcing fiber are integrated with each other in order to melt and adhere to the core member at the time of pressure bonding, welding or firing (the heat-bonding yarn of the reinforcing fiber is integrated). It is possible to easily manufacture a reinforcing fiber structure having a predetermined size and thickness that melts and fuses with the core member.
  • the bag-shaped portion having a high tensile strength (high tensile strength) is provided in the circumferential direction of the ring in a bag weaving using a reinforcing fiber made of a heat-sealed yarn entangled in a linear shape with a reinforcing fiber arranged linearly. Therefore, the heat-sealed yarn is melted by thermocompression bonding or the like and fused and bonded to the core member, so that a reinforcing fiber structure in which the core member and the reinforcing fiber are integrated can be efficiently manufactured.
  • a predetermined thickness and hardness cannot be obtained unless a plurality of layers are overlapped.
  • the conventional reinforcing fiber is said to have low bending strength.
  • a reinforcing fiber structure having a predetermined thickness and a high bending strength can be easily manufactured by using a fiber having a thickness greater than that of the reinforcing fiber, and the outer peripheral surface of the core member. Can be manufactured by covering the outer surface of the core member with the specific strength and / or specific elasticity of the carbon fiber of the bag-like portion.
  • the core member is easily caught by reinforcing fibers (carbon fibers) arranged in a straight line by forming irregularities or damaging the surface of the core member.
  • the reinforcing fibers (carbon fibers) arranged in a straight line are caught between the irregularities and damages on the surface of the core member, and the core member moves during pressure bonding, welding, or firing.
  • the reinforcing fibers that are in close contact with the outer periphery of the core member can be easily manufactured.
  • the core member is a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member, and the hardness of these plate-like members is lower than the hardness of the reinforced fiber.
  • the hardness of the said core member is low, since the hardness of the said reinforced fiber is stronger, the point with the low intensity
  • a metal member is used as the core member, it can be used for a conductive structure (circuit board or the like).
  • a bag-like portion is formed by bag-woven (or bag-knitting) the reinforcing fiber, and a metal member, a fiber-reinforced plastic member, a fiber-reinforced ceramic member, or a core member is formed in the bag-like portion, or A fiber-reinforced glass member is disposed, bent into a predetermined shape, and coated by pressure bonding, welding, or firing.
  • the core member can be prevented from moving during crimping, welding, or firing, and the reinforcing fibers that are in close contact with the outer periphery of the core member can be efficiently produced. That is, if baking or the like is performed with the plate-shaped core member placed in the bag-shaped portion, the number of processes can be reduced, and the bag-shaped portion can cover the core member along the core member. Is improved.
  • the core member is a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member. It is preferable that the strength of the coating is increased by firing. According to the present invention, the strength of the coating can be increased by making these surfaces uneven and corrugated and pressing, welding or firing with the reinforcing fibers. By providing a plurality of bag-like portions formed by bag weaving (or bag knitting) on the reinforcing fiber, the fused state of the uneven surfaces of each other becomes stronger.
  • the core yarn of the reinforcing fiber is a PAN-based or pitch-based carbon fiber using an acrylic fiber, the heat-sealed yarn is a covered fiber, and the core member is made of metal.
  • the hardness may be lower than that of the reinforced fiber.
  • the metal member or the reinforced plastic member which is the core member, has a melting point higher than that of the reinforced fiber, so that only the reinforcing fiber is crimped, welded, or baked, so that the shape of the metal member, the reinforced plastic member, etc.
  • the core member and the reinforcing fiber are integrally formed with a reinforcing fiber structure having a predetermined size and thickness so that the heat-sealing yarn melts and adheres to and fuses with the core member during pressure bonding, welding, or firing.
  • the product can be manufactured efficiently, has a strong bending strength, and has a high durability.
  • aluminum is highly malleable and relatively low in strength, but the carbon fibers crimped around it have both excellent specific strength and specific elasticity. It is a high-strength material, resulting in a reinforced fiber structure that supplements the strength of aluminum.
  • L-shaped steel, H-shaped steel or U-shaped steel used as a building structure and can be applied as a hull structure (outer wall or inner wall) such as a car body or a ship or an airplane. It is. Further, when a metal member is selected as the core member, it can also be applied as a structure that conducts electricity. Moreover, when discarding after use, it is also possible to separate and reuse metal members and fiber reinforced plastic members.
  • problems such as air entering between the carbon fibers and the carbon fibers, which have been caused by the conventional method of laminating and bonding a plurality of carbon fibers, are less likely to occur, and the manufacturing process is simplified. The time is shortened.
  • FIG. 1 It is a figure which shows the reinforced fiber structure of the 3rd Embodiment of this invention, (a) is sectional drawing which accommodated the metal plate in the bag-shaped part, (b) is a cross section which shows the state crimped
  • FIGS. 1A and 1B are perspective views of a reinforcing fiber having a bag-like portion 3a in which a heat-sealing yarn having a reinforcing fiber as a core yarn and covering the heat-sealing yarn is woven.
  • a reinforcing fiber 3 in which a heat-bonding yarn (nylon) is covered is used as the reinforcing fiber core yarn (carbon fiber), and the bag-like portion 3a is formed by bag weaving. Is formed.
  • the size of the bag-like portion 3a is such a size that a metal member (aluminum or aluminum alloy) as the core member 2 can enter.
  • a core member 2 bent into an L shape using two metal members 3 such as an aluminum plate is placed in a bag-like portion 3a (FIGS. 2A and 2B).
  • the thickness Y2 of the core member 2 is thicker than the thickness Y1 of the reinforcing fiber (carbon fiber) 2 and is a reinforcing fiber member (FIGS. 3A and 3B).
  • the two core members may be baked after being put in the bag-like members 3a and 3a, and may be bent into an L shape from substantially the center 3b (FIG. 4 (a) ( b)). And the center connection part 3b may be baked and others may be welded.
  • the left and right end portions 3c of the bag-like portion 3a of the present embodiment are open, only one side may be opened and the core member 2 may be inserted from the opening 3c.
  • the reinforcing fiber 3 may be one in which the core member 2 is joined between the front and back surfaces, that is, as long as it is covered.
  • the length of the metal plate 3 is longer than that of the bag-like portion 2, but if the length of the metal member 3 is shorter than that of the bag-like portion 3a, the entire metal member enters.
  • a plurality of bag-like portions 3a are provided, but one may be provided, and a plurality of metal members 3 may be disposed here.
  • bag weaving is one type of double weaving, and is a weaving method in which both ends of a cloth are joined to the front and back to form a tube (annular), and when cut, it is woven into a bag. By making it into a bag shape, thickness and elasticity are achieved. With bag weaving, the fabric weaves in the shape of a tube (ring or cylinder). The result is a weaving process in which two pieces are joined together in the top and bottom, and a seamless fabric with high tensile strength in the circumferential direction of the ring is obtained.
  • Bag knitting is a method in which both sides (front and back) are knitted into a bag shape, giving it a thickness and elasticity, as well as a soft feeling. Bag weaving (or bag weaving) may be used, but the stitches become finer, air can hardly enter the bag-like portion 3a, and bag weaving with low stretchability is superior in thermocompression bonding. The movement of the aluminum or aluminum alloy 2 is prevented.
  • Weft knitting is a knitted fabric with continuous stitches in the horizontal direction.
  • Warp knitting is a knitting method that creates continuous stitches in the vertical direction. There is also a close elasticity and can make a stable knitted fabric.
  • the metal member (core member) 2 is stored in the bag-shaped member 3a made of one reinforcing fiber even if the shape of the core member 2 is complicated as shown in FIG. And can be coated along the metal member (core member) 2 having the shape.
  • the reinforcing fiber 3 is made of carbon fiber, carbonized fiber, polyamide fiber, and glass fiber.
  • a carbon fiber a PAN-based or pitch-based reinforcing fiber or glass fiber can be used.
  • a fiber reinforced plastic is a thermoplastic resin or thermosetting plastic composite reinforced with continuous or discontinuous reinforcing fibers. In this specification, what was processed into a predetermined shape (including bending) is referred to as a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member.
  • plastic used for the reinforced plastic member examples include thermosetting resins such as epoxy resins, polyester resins, vinyl ester resins, and phenol resins, and thermoplastic resins such as polyamide resins and polyurethane resins. Further, the fiber reinforced plastic may be combined with a metal containing titanium.
  • Fiber-reinforced ceramics are reinforced ceramics that have been made tough by mixing ceramic fibers with the brittle nature of ceramics.
  • High-temperature high-strength ceramics alumina, silicon carbide, silicon nitride, carbon, etc.
  • carbon fibers, silicon carbide fibers, alumina fibers, etc. are used for the fibers as the reinforcing material.
  • a surface treatment layer is formed by performing a surface treatment for improving various properties on a fiber surface in a fiber preform reinforced with ceramic whisker or the like.
  • a ceramic material may be formed inside the fabric by impregnation / firing of a ceramic polymer, a CVD method, or the like.
  • a thermosetting resin is poured and heated to be hardened.
  • the glass material may be melted by heating, and the glass material may be soaked into the fabric by pressurization.
  • the core member 2 is a metal member, plate-like aluminum or aluminum alloy is used, but a layer is formed so as not to react by kneading the metal material such as aluminum with the ceramic fiber or the carbon fiber / carbonized fiber. You can create it.
  • the first embodiment When the first embodiment is used as an L-shaped steel or an H-shaped steel used in a building structure, it uses two metal members 2 such as aluminum plates to form an L shape or an H shape. After placement, crimping and welding (or firing) are performed (FIGS. 6A and 6B).
  • the core member 2 can easily manufacture building structures such as L-shaped steel, H-shaped steel, and anchors by using reinforcing fibers having a thickness higher than that of the reinforcing fibers (carbon fibers) 2 and higher hardness. If aluminum is used as the core member 2 or the core member is thinned, the weight can be reduced, but the surface is covered with the carbon fiber 3, and therefore the bending strength is strong.
  • the U-shapes can be combined and stored in one bag-shaped portion 3a (FIGS. 8A and 8B).
  • the metal member (core member) 2 is accommodated in the bag-shaped member 3a by one reinforcement fiber by forming the internal space part 7 also in the complicated shape of an unevenness
  • the bag-like portion 3a could be confirmed in the manufactured product even after pressure bonding, welding, or firing.
  • the left and right end portions are not aligned (a tuft) 3c, which makes it easy to confirm the position of the end portion (opening portion) 3c.
  • the present invention is widely used in high pressure vessels, bridges, buildings, etc. because it has a high yield ratio and good weldability as a tempered high strength steel by quenching and annealing.
  • thermocompression bonding laser welding (thermocompression using laser light), high-frequency welding (thermocompression using ultrasonic waves), hot plate welding, or vibration welding may be used.
  • thermocompression bondings are performed by a method of performing pressure bonding using a mold in addition to pressure bonding by a press machine.
  • FIG. 5 (b) and 5 (c) are cross-sectional views of a bag-like portion in which the reinforcing fibers are woven in a twill or satin weave.
  • Fig.5 (a) is a figure explaining plain weave, twill weave, and satin weave.
  • the reinforcing fiber 3 is a bag weave of twill or satin weave.
  • the structure is durable and resistant to external force and damage, can prevent the core member 2 from moving, and is less prone to problems such as air entering the inner side of the bag-like portion 3a (the crimping surface of the core member).
  • the front and back surfaces of the core member 2 are roughened or corrugated (or by damaging the surface), through holes are formed in the core member 2, and the front and back surfaces are reinforced through the through holes. You may connect a fiber.
  • the reinforcing fiber is a plain weave
  • the warp and weft are organized one by one, so the number of warps is the same as the weft, but the twill weave and satin weave can have a higher density than the plain weave.
  • the number of warp yarns can be increased by about 2.5 times the number of weft yarns, and the warp density can be further increased as compared with the twill weave structure.
  • the plain weave is a structure in which warp and weft yarns are alternately raised and submerged one by one (FIG. 5 (a)).
  • the twill weave does not float up and down alternately like a plain weave, and the twill lines are displayed diagonally, and the twill lines are displayed. In many cases, the table is usually going to the right. When the thickness and density of the yarn 3d are the same, the twill line is often 45 ° (appears on the fabric surface as a diagonal line from the lower right to the upper left in the figure).
  • Satin weave (satin weave) is composed of 5 or more warps and wefts. The crossing points are not adjacent to each other at regular intervals. The number of warps and wefts is the same.
  • . 5 harness satin is the simplest organization of satin weaving, and there are two types of crossing points, one with three crossings and the other with two crossings, except for the front and back relationship. The arrangement of the crossing points is good and the satin lines are inconspicuous, so a beautiful fabric can be made (FIG. 5 (a)).
  • As the satin weave in addition to the five sheets of lions, eight sheets, ten pieces, twelve pieces, twelve pieces, twenty-four pieces, and the like are not limited to these. For example, in the case of warp five satin, the warp intersects with the weft once and becomes a woven fabric in which the warp floats on four wefts.
  • the warp will be a fabric that floats on seven wefts.
  • the yarn floats for a long time, it becomes possible to arrange the yarns closely and there is no gap between the yarns. This makes the ground thicker, softer and less wrinkled, flat and smooth and glossy.
  • the fiber density can be changed on the front and back of the reinforcing fiber 3, or the fiber density outside the bag-like portion 3a and the fiber density inside the bag-like portion can be changed.
  • the reinforcing fibers are The structure is strong and durable against physical external force and damage from the outside.
  • FIGS. 10 (a) to 10 (d) show a bag-like portion 3a in which a heat-sealing yarn 3a covered with a heat-sealing yarn using a reinforcing fiber as a core yarn is woven. It is a perspective view of the reinforced fiber which has.
  • the bag-like portions 3a are formed at a predetermined interval between the reinforcing fibers 3, and the reinforcing fibers 3 are bent at a portion (connecting portion) 3b other than the bag-like portion 3a.
  • the two metal plates 2 are used to be put into the bag-like portions 3a, respectively, and the bending process is performed using the portion 3b between the bag-like portion 3a and the bag-like portion 3a.
  • the bending process is performed using the portion 3b between the bag-like portion 3a and the bag-like portion 3a.
  • Two or more sheets may be used, and as shown in FIGS. 12A and 12B, the five core members 2 can be housed in the bag-shaped portion 3a and bent at a predetermined angle.
  • the metal member 2 is not arrange
  • the metal member 2 is not disposed in the intermediate portion 3b, if the front and back are joined by bag weaving or (or bag knitting), these front and back are welded by thermocompression bonding or firing.
  • reinforcing fibers may be further stacked on the intermediate portion 3b, or a thin metal member 2 may be disposed (FIG. 10D). Further, reinforcing reinforcing fibers are interposed, the binder is used only for the intermediate portion 3b to reinforce, the intermediate portion is bent by baking, and then subjected to thermocompression bonding. It may be processed.
  • a rotation mechanism (shaft 2j) is arranged at the tip of the core member 2, or as shown in FIGS. 14 (a) and 14 (b).
  • the rotation mechanism (the shaft 2j and the bearing 2i) can be rotated at a predetermined angle.
  • a thin portion 2Fa is provided on the core member 2F, and this thin portion 2Fa is provided. It can be bent by firing using (FIG. 11B). Although it may be bent after being bent into an L shape with the plate-shaped core member 2 in the bag-shaped portion 3a (FIG.
  • the plate-shaped core member 2 is inserted into the bag-shaped portion 3a.
  • the number of steps is reduced, and the bag-like portion 3 a covers the core member 2 along the core member 2.
  • a predetermined thickness such as a heating press may be formed first, and only the curved portion 2Fa may be fired and processed into a predetermined curved / bent curved state. In any case, since the bag-like portion 3a changes following these bending processes, a good covering state along the bending process state can be obtained.
  • a pressure molding device, a compression molding device, a vacuum pressure molding device, or the like provided with a heating means can be used.
  • a press machine such as heat welding, a heat press or a heated roll press can be used.
  • the heating condition is preferably a temperature lower than the melting point of the metal member.
  • after thermocompression bonding at a relatively low temperature for example, it may be baked and bent at a place to be bent.
  • preheating may be performed at a temperature at which the binder component melts, followed by main heating, and the partial firing (bending portion or bending for adjustment) may be performed.
  • a binder (binder) is used for welding by pressing or the like.
  • polyester, polyvinyl alcohol, polyacrylic acid, polyurethane, melamine resin, phenol resin, epoxy resin, or the like can be used as the binder.
  • the hardness of the reinforcing fiber 3 may be made higher than the hardness of the core member 2 by applying these binders and heat-welding them.
  • the core member 2 is a fiber reinforced plastic member or the like containing reinforcing fibers
  • the core yarn of the reinforcing fiber is a PAN-based or pitch-based carbon fiber using acrylic fiber, and a fiber-reinforced plastic member or the like including the reinforcing fiber is used.
  • the heat-fusible yarn 3a is more easily melted on the surface of the core member 2, and the adhesion (fused state) is improved.
  • FIG. 15 is an enlarged perspective view of the fabric structure.
  • the woven fabric structure according to the present embodiment is a reinforcing fiber including warps of one or more reinforcing fibers 3d arranged substantially parallel to each other and one or more weft yarns of one or more heat fusion yarns arranged substantially parallel to each other. is there.
  • the warp yarns of the reinforcing fibers 3d and the weft yarns of the heat fusion yarn 4 are arranged so as to cross each other (approximately 90 ° angle).
  • the warp yarns of the one or more reinforcing fibers 3d and the weft yarns of the one or more reinforcing fibers 3d are woven together, for example, a plain weave, twill weave, satin weave, or a combination thereof.
  • FIG. 16 is a side view of the fabric structure of FIG. It is the figure which expanded the textile structure of the bag-shaped part which carried out the bag sack using the weft yarn 4 as the weft and the reinforcing fiber as the warp, and was seen from the side.
  • the weft yarn of the heat-sealing yarn 4 is thinner than the warp yarn of the reinforcing fiber 3d, the weft yarn of the heat-sealing yarn 4 undulates, and the warp portion of the substantially straight reinforcing fiber 3d is arranged in the wavy portion.
  • the fabric structure is a structure such as a plain weave in which the warp yarns of the reinforcing fibers 3d are arranged in a substantially straight line with respect to the form in which the weft yarns of the heat fusion yarn 4 are bent up and down.
  • the warp of the reinforcing fiber 3d is substantially linear, and the reinforcing fiber 3d is preferably a carbon fiber.
  • the carbon fiber is preferably a fiber bundle having a filament number of about 5000 to 15000 and a thickness of about 1000 to 10,000 dtex.
  • the reinforcing fiber may be a bundle of a plurality of reinforcing fibers.
  • the reinforcing fiber may be a combination of the carbon fiber and the heat-sealing yarn 4, and when combined, the reinforcing fiber is easily bent and the flexibility of the bag weave is improved.
  • the weft yarn of the heat-sealing yarn 4 is a thinner yarn and / or a bent yarn than the reinforcing fiber 3d, and for example, a yarn of 50 to 100 dtex is used.
  • the resin constituting the heat-bonding yarn 4 is not particularly limited as long as it is a resin that melts by heating.
  • the heating temperature is not particularly limited, and is generally 80 to 200 ° C, preferably 80 to 100 ° C.
  • As the heat-sealing yarn 4 a polyester fiber using a polyester resin and a polyamide fiber using a polyamide resin are preferable. Nylon or the like is suitable for polyamide fibers.
  • the reinforcing fiber When the woven structure is formed, the reinforcing fiber is a straight thread-like shape and does not bend. Therefore, the reinforcing fiber has a structure in which expansion and contraction does not occur with respect to tension and has a high tensile strength.
  • the fabric structure since the reinforcing fibers 3d are arranged as warps, the fabric structure has a high tensile strength in the warp direction.
  • the heat fusion yarn 4 may be a warp and the reinforcing fiber may be a weft, and a reinforcing fiber structure having high tensile strength can be formed along the direction in which the reinforcing fiber is arranged.
  • FIG. 17 is a perspective view showing the fifth embodiment, in which the fabric structure of the fourth example shown in FIG. 15 is stacked in two layers.
  • the direction in which the reinforcing fibers 3d of the upper layer fabric structure are arranged and the direction in which the reinforcing fibers 3d of the lower layer fabric structure are arranged are formed at an angle of approximately 90 ° and are closely overlapped (see FIG. 17 arrow a).
  • FIG. 18 is a side view of the fabric structure as viewed from the arrow b of FIG. 17 along the Y axis of the fabric structure superimposed on the two layers of FIG.
  • the bag-shaped portion of the bag weave is composed of two layers, and the upper layer fabric structure is the same as the fabric structure shown in FIG.
  • the lower layer fabric structure is obtained by rotating the upper layer fabric structure by an angle of 90 ° on the XY plane. That is, the warp yarn of the heat fusion yarn 4 is thinner than the weft yarn of the reinforcing fiber 3d. Is a wavy yarn of a substantially straight reinforcing fiber 3d with respect to a shape that is bent up and down in a wavy shape to form a plain weave structure.
  • the reinforcing fibers 3d of the upper layer fabric structure and the reinforcing fibers 3d of the lower layer fabric structure are arranged in layers so as not to interweave each other, the upper layer and the lower layer reinforcing fibers do not wavy and are straight. It is a shape and is a structure without bending.
  • the upper layer fabric structure and the lower layer fabric structure are coated on the core member twice in an independent state. A desired direction and strength can be provided by stacking a plurality of bag-like portions independently and covering the core member.
  • FIG. 19 shows a fabric structure in which an upper layer fabric structure and a lower layer fabric structure are integrated.
  • the weft yarn of the heat-sealing yarn 4 is thinner than the warp yarn of the reinforcing fiber 3d, and the weft yarn of the heat-sealing yarn 4 undulates in a wavy shape and is bent up and down, and is substantially linear reinforcing fiber 3d.
  • the warp yarns are arranged to form a structure such as a plain weave.
  • the warp yarn of the heat-sealing yarn 4 is thinner than the weft yarn of the reinforcing fiber 3d, and the warp yarn of the heat-sealing yarn 4 undulates up and down in a wavy shape and is bent in a substantially straight shape.
  • 3d wefts are arranged to form a structure such as a plain weave.
  • the upper layer heat fusion yarn and the lower layer heat fusion yarn are woven together to form a woven fabric structure.
  • the upper layer and lower layer reinforcing fibers do not wavy, are straight, and are integrated with a configuration with little deflection.
  • the positions of the upper layer fabric structure and the lower layer fabric structure are fixed by the heat-sealing yarn, and the two layers of the fabric structure are prevented from being integrated to cause a positional shift. Therefore, two layers of a bag-shaped part with high tensile strength (tension resistance) in the weft direction and a bag-shaped part with high tensile strength in the longitudinal direction are integrated in a pre-overlapped state, and the tensile strength in the weft direction and the warp direction is integrated. It is comprised as one high bag-like part, and becomes a reinforced fiber structure of a structure with high tensile strength in the weft direction and the warp direction.
  • both the upper layer fabric structure and the lower layer fabric structure may be integrated as a double bag-like portion having a high tensile strength in the weft direction, and both are bags having a high tensile strength in the vertical direction. It may be integrated as a double portion as a shape portion, or can be integrated and configured so that the tensile strength is increased in a desired direction.
  • the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application.
  • the insertion interval of the heat fusion yarn 4 with respect to the reinforcing fiber 3d is not particularly limited.
  • the insertion interval of the warp yarns of the thermal fusion yarn 4 may be every other warp yarn of the reinforcing fiber 3d, or every two or more warp yarns.
  • the weft insertion interval of the thermal fusion yarn 4 may be every other weft yarn of the reinforcing fiber 3d, and the insertion interval of the weft yarn of the thermal fusion yarn 4 is every two or more weft yarns of the reinforcing fiber 3d. Also good.
  • the present invention is a structural member (body or inner wall) of an automobile or a vehicle, Structural members (fuselage and inner walls) of airplanes and airships, not only these outer walls, but also inner walls and flooring, automobile and vehicle parts (seat frames, etc.), airplane / airship parts (seat frames, etc.), building materials, Widely applicable to outer wall materials.
  • a metal member is used as the core member 2, it can also be used for a conductive structure (circuit board or the like).

Abstract

[Problem] To enable efficient production of a reinforcement fiber structure in which a core member and reinforcement fibers are integrally fused and shaped, and to provide a reinforcement fiber structure that exhibits a high bending strength when subjected to bending. [Solution] The present invention is provided with a bag-like portion by means of hollow weaving using reinforcement fibers 3 comprising reinforcement fiber (carbon fiber) filaments and a thermally fusible yarn 4, and is formed by covering a core member 2 with said bag-like portion by means of pressure bonding, welding, or firing. Since the bag-like portion 3a is formed by means of hollow weaving (or tubular knitting) using the reinforcement fiber 3, and since the core member 2 is covered by pressure-bonding, welding, or firing; a reinforcement fiber structure can be produced in which the thermally fusible yarn is melted by thermocompression bonding or the like so as to be fusion-bonded to the core member.

Description

強化繊維構造物及びその製造方法Reinforcing fiber structure and manufacturing method thereof
　本発明は、強化繊維に金属製部材、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材等を圧着、溶着又は焼成して所定の厚みや所定形状に加工した強化繊維構造物及びその製造方法に関する。 The present invention relates to a reinforced fiber structure in which a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, a fiber reinforced glass member, or the like is pressed, welded, or fired on a reinforced fiber and processed into a predetermined thickness or a predetermined shape. It relates to the manufacturing method.
　カーボン繊維（炭素繊維）は軽量で、高強度で、高い弾性率を有しており、航空機構造部材、自動車用部品、スポーツ・レジャー用品のプリプレグや積層材の基材として使用されている。強化繊維（Carbon fiber）は、アクリル繊維またはピッチ（石油、石炭、コールタールなどの副生成物）を原料に高温で炭化して作った繊維である。アクリル繊維を使った強化繊維はPAN系（Polyacrylonitrile）、ピッチを使った強化繊維はピッチ系（PITCH）と区分される。強化繊維を単独の材料として利用することは少なく、合成樹脂などの母材と組み合わせた複合材料として用いることが主である。強化繊維を用いた複合材料としては強化（繊維）プラスチック、強化繊維強化炭素複合材料などがある。強化（繊維）プラスチックは、ガラス繊維やナイロン・ビニロンなどを補強材として加えて成形したプラスチック製品であり、衝撃に強く、自動車車体・ボートや飛行機の船体や建材・ヘルメット・釣具などに広く使用されている。 Carbon fiber (carbon fiber) is lightweight, has high strength, and has a high elastic modulus, and is used as a base material for aircraft structural members, automotive parts, prepregs for sports and leisure goods, and laminated materials. Carbon fiber is a fiber made by carbonizing acrylic fiber or pitch (by-products such as petroleum, coal, coal tar, etc.) at a high temperature. Reinforcing fibers using acrylic fibers are classified as PAN (Polyacrylonitrile), and reinforcing fibers using pitch are classified as pitch (PITCH). Reinforcing fibers are rarely used as a single material, and are mainly used as a composite material combined with a base material such as a synthetic resin. Examples of composite materials using reinforcing fibers include reinforced (fiber) plastics and reinforced fiber reinforced carbon composite materials. Reinforced (fiber) plastic is a plastic product formed by adding glass fiber, nylon, vinylon, etc. as a reinforcing material. It is resistant to impact and is widely used in automobile bodies, boats, airplane hulls, building materials, helmets, fishing gear, etc. ing.
　強化繊維の複合材料としては、例えば、特許文献１～４等が既に開示されている。
　特許文献１は、樹脂製の不燃性ないしは難燃性のハニカム芯の両面に炭素繊維強化複合材料を有するサンドイッチ板で構成された航空機座席用背もたれが開示されている。
　特許文献２は、「（請求項１）鋳込み前に金型内に配置し、マトリックス金属とともに鋳造して繊維強化金属複合材料を構成する棒状または筒状のプリフォーム材であって、プリフォーム材の軸方向と一致する方向に繊維軸を引揃えた補強繊維からなる内層と、内層を被覆する補強繊維の筒状編組体または筒状製織体（以下、両者をまとめて筒状織・編物という）からなる被覆層とを、交互に複数層を重ねてなることを特徴とするプリフォーム材。」と、（請求項２）最外層が被覆層であることを特徴とする請求項１記載のプリフォーム材。」と、（請求項３）内層を構成する補強繊維は強化繊維であり、被覆層を構成する筒状織・編物は繊維の交差角が１０～４５度で編成された袋編物または製織された筒状織物であることを特徴とする請求項１または２記載のプリフォーム。」が開示されている。
　特許文献３は、管状金属合金とＦＲＰプリプレグを相互に接着させ、引っ張り応力、及び、圧縮応力に対応した軽量で強固な構造体を構成するものであり（課題）、その要約書には「管状金属部品６０の外周面に化学エッチングによるミクロンオーダーの粗度があり、且つその表面は電子顕微鏡観察で、高さ又は深さ及び幅が１０～５００ｎｍで長さが１０ｎｍ以上の仕切り状凸部、又は溝状凹部が１０～数百ｎｍ周期で全面に存在する超微細凹凸形状を形成し、その表面が金属酸化物又は金属リン酸化物の薄層２１とする。これに管状の繊維強化プラスチック材６１をエポキシ系樹脂剤６２により接着させ、管状複合体を形成する。」内容が記載されている。
　特許文献４は、非常に大きなＦＲＰ製品に使用される長尺の斜向糸繊維織物を簡単に得ることができる実用性，生産性に秀れた技術を提供するものであり（課題）、「ＦＲＰ用の繊維織物の製造方法であって、斜向糸供給部３を有するブレーダー２に軸芯方向に移動可能なマンドレル１を挿入し、この斜向糸供給部３は、マンドレル１の外周面上に該マンドレル１の軸芯に対して所定角度±θで斜向糸Ｓを供給するように構成され、この斜向糸供給部３から複数本の斜向糸Ｓを供給してマンドレル１の外周面上に筒状織物４を織成し、続いて、該筒状織物４をマンドレル１の軸芯方向に切り開いて前記複数の斜向糸Ｓが配設された長尺の斜向糸繊維織物５を製造する」内容が記載されている。 For example, Patent Documents 1 to 4 have already been disclosed as composite materials for reinforcing fibers.
Patent Document 1 discloses a backrest for an aircraft seat composed of a sandwich plate having a carbon fiber reinforced composite material on both surfaces of a resin non-combustible or flame retardant honeycomb core.
Patent Document 2 states that “(Claim 1) is a rod-shaped or cylindrical preform material that is placed in a mold before casting and cast with a matrix metal to form a fiber-reinforced metal composite material. An inner layer composed of reinforcing fibers in which the fiber axes are aligned in a direction coinciding with the axial direction, and a tubular braid or tubular woven body of reinforcing fibers covering the inner layer (hereinafter, both are collectively referred to as a tubular woven / knitted fabric) And a coating material comprising a plurality of layers alternately stacked with each other), and (claim 2) the outermost layer is a coating layer. Preform material. (Claim 3) The reinforcing fiber constituting the inner layer is a reinforcing fiber, and the tubular woven / knitted fabric constituting the covering layer is a bag knitted or woven knitted with a fiber crossing angle of 10 to 45 degrees. The preform according to claim 1, wherein the preform is a tubular woven fabric. Is disclosed.
In Patent Document 3, a tubular metal alloy and an FRP prepreg are bonded to each other to form a lightweight and strong structure corresponding to tensile stress and compressive stress (problem). The outer peripheral surface of the metal part 60 has a roughness on the order of microns by chemical etching, and the surface is a partition-like convex part having a height or depth and width of 10 to 500 nm and a length of 10 nm or more by electron microscope observation, Alternatively, an extremely fine concavo-convex shape in which groove-like concave portions are present on the entire surface with a period of 10 to several hundred nm is formed, and the surface is a thin layer 21 of a metal oxide or a metal phosphate, and this is a tubular fiber-reinforced plastic material. 61 is bonded by an epoxy resin agent 62 to form a tubular composite. ”The contents are described.
Patent Document 4 provides a technology excellent in practicality and productivity that can easily obtain a long slanted yarn fiber fabric used for a very large FRP product (problem). A method for manufacturing a fiber fabric for FRP, in which a mandrel 1 that is movable in the axial direction is inserted into a braider 2 having an oblique yarn supply unit 3, and the oblique yarn supply unit 3 is an outer peripheral surface of the mandrel 1. The oblique thread S is supplied to the mandrel 1 at a predetermined angle ± θ with respect to the axis of the mandrel 1. A plurality of oblique threads S are supplied from the oblique thread supply unit 3 to A tubular fabric 4 is woven on the outer peripheral surface, and then the tubular fabric 4 is cut in the axial direction of the mandrel 1 and the long oblique yarn fiber fabric 5 in which the plurality of oblique yarns S are disposed. "Manufacturing" is described.
実公平２－１２９１２号公報No. 2-12912 特開平９－５３１３２号公報JP-A-9-53132 特開２００８－３０７８４２号公報JP 2008-307842 A 特開２００１－３１０３９３号公報JP 2001-310393 A
　ところで、カーボン繊維（炭素繊維）は、その比重が１．８前後であり、鉄の７．８に比べて約１／４と非常に軽量であり、アルミニウムの２．７に比べても軽量である。またカーボン繊維の比強度（引張強度を比重で割った値）は鉄の１０倍、比弾性（引張弾性率を比重で割った値）は、鉄の７倍と高強度である。そのため航空機構造部材や自動車用部品のプリプレグや積層材の基材として使用されているが、反面、曲げ強度には弱いとされ、曲げ加工も容易ではないとされている。なお、炭素繊維を建築構造物や自動車や船舶・飛行機などの構造物などに使用するに際して、複数枚の炭素繊維を重ね合わせて圧着する製造方法がある。また、炭素繊維に熱硬化性樹脂を含浸させた半硬化状態のシート状成形用中間材料（プリプレグ）を積層させる技術が提案されている。
　しかしながら、複数枚の炭素繊維を重ね合わせて圧着する方法では、硬度の点で十分ではなく、また、何枚も重ねるには製造にも時間がかかるばかりか、炭素繊維と炭素繊維の間に空気が入り込むなどの問題を生じる（特許文献１ではこの課題を有する）。
　特許文献２ないし４は、所定形状に成型して主に更なる強度の強い強化繊維の複合材料であり（曲げ強度に強い部材ではあるが）、その製造方法は、マトリックス金属とともに鋳造して繊維強化金属複合材料を構成するものや（特許文献２）、管状の繊維強化プラスチック材６１をエポキシ系樹脂剤６２により接着させるものや（特許文献３）、斜向糸供給部３を有するブレーダー２に軸芯方向に移動可能なマンドレル１を挿入する等するものであり（特許文献４）、その製造方法が難しい面を有する。
　なお、特許文献１～４のような繊維強化複合材料を廃棄処分するとき、これを焼却等しても、分解して処理するようなことは無理で、無機材料や有機材料が混合した状態で残る問題を有する。 By the way, the carbon fiber (carbon fiber) has a specific gravity of about 1.8, and is very light, about 1/4 compared with 7.8 of iron, and lighter than 2.7 of aluminum. is there. The specific strength (value obtained by dividing tensile strength by specific gravity) of carbon fiber is 10 times that of iron, and the specific elasticity (value obtained by dividing tensile elastic modulus by specific gravity) is 7 times that of iron. For this reason, it is used as a prepreg for aircraft structural members and automotive parts, and as a base material for laminated materials. On the other hand, it is considered to be weak in bending strength and is not easily bent. In addition, when using carbon fiber for structures, such as a building structure, a motor vehicle, a ship, and an airplane, there exists a manufacturing method which piles up and crimps | bonds a plurality of carbon fibers. In addition, a technique of laminating a semi-cured sheet-form molding intermediate material (prepreg) in which carbon fibers are impregnated with a thermosetting resin has been proposed.
However, the method of laminating and bonding a plurality of carbon fibers is not sufficient in terms of hardness, and it takes time to manufacture a plurality of carbon fibers. (For example, Patent Document 1 has this problem).
Patent Documents 2 to 4 are composite materials of reinforcing fibers that are molded into a predetermined shape and mainly stronger (although it is a member that is strong in bending strength). For the one constituting the reinforced metal composite material (Patent Document 2), the one in which the tubular fiber-reinforced plastic material 61 is adhered by the epoxy resin agent 62 (Patent Document 3), and the braider 2 having the oblique yarn supply unit 3 For example, a mandrel 1 that can move in the axial direction is inserted (Patent Document 4), and its manufacturing method is difficult.
When disposing of fiber reinforced composite materials such as those in Patent Documents 1 to 4, it is impossible to disassemble and dispose of them even if they are incinerated, etc., with a mixture of inorganic and organic materials. Has remaining problems.
　そこで本発明の目的は、芯部材と強化繊維が一体的に融合して所定にした強化繊維構造物が効率的に製造でき、曲げ加工すれば曲げ強度にも強くなり、しかも分解処理も容易な強化繊維構造物及びその製造方法を提供することにある。 Accordingly, an object of the present invention is to efficiently manufacture a reinforcing fiber structure in which a core member and a reinforcing fiber are integrally fused and can be efficiently manufactured. If bending is performed, the bending strength is enhanced and the decomposition process is easy. An object of the present invention is to provide a reinforcing fiber structure and a method for manufacturing the same.
　本発明は、熱融着糸が配された強化繊維を用いて袋織りにより円環の周方向に耐張力の高い前記袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されていることを特徴とする。
　ここで、袋織りは、二重織りの一つであり、布の両端が表裏接合され、筒状（円環状）になる織り方であり、裁断してみると袋状に織られる。袋状にすることにより、厚みと弾力がでる。上下に２枚つなぎ合わせたような織りあがりになり、熱融着糸が配された強化繊維を用いて袋織りにより円環の周方向に耐張力の高い前記袋状部分が設けられる。
　本発明によれば、円環の周方向に耐張力の高い前記袋状部分が設けられるので、圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されている強化繊維構造物である。
　また、本発明は、炭素繊維の芯糸に熱融着糸がカバーリングされた強化繊維を用いて、袋織りで継ぎ目のない製織された袋状部分が設けられて円環の周方向に耐張力の高い前記袋状部分が設けられるか、又は、直線的に配された強化繊維に波状に絡む熱融着糸からなる強化繊維を用いた袋織りで円環の周方向に耐張力の高い前記袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されていることを特徴とする。
　本発明によれば、熱融着糸が配された強化繊維の糸を用いて袋織りで継ぎ目のない袋状部分が設けられて円環の周方向に耐張力の高い(引張強度の高い)前記袋状部分が設けられるので、圧着、溶着又は焼成の際に熱融着糸が溶融して芯部材に付着するために、芯部材と強化繊維が一体的（強化繊維の熱融着糸が溶けて芯部材と融合する状態）な所定の大きさや厚みの強化繊維構造物が容易に製造できる。また、直線的に配された強化繊維に波状に絡む熱融着糸からなる強化繊維を用いた袋織りで円環の周方向に耐張力の高い(引張強度の高い)前記袋状部分が設けられるので、熱圧着等により熱融着糸が溶融して芯部材に融合接着して、芯部材と強化繊維が一体的な強化繊維構造物が効率的に製造できる。 In the present invention, the bag-like portion having high tensile resistance is provided in the circumferential direction of the ring by bag weaving using reinforcing fibers on which heat-sealing yarns are arranged, and a core member is inserted into the bag-like portion and crimped. The outer peripheral surface of the core member is integrally reinforced by the covering of the bag-like portion, which is covered by welding or firing.
Here, bag weaving is one type of double weaving, and is a weaving method in which both ends of a cloth are joined to the front and back to form a tube (annular), and when cut, it is woven into a bag. By making it into a bag shape, thickness and elasticity are achieved. The bag-like portion having a high tensile strength is provided in the circumferential direction of the annular ring by bag weaving using a reinforcing fiber on which two heat-bonding yarns are arranged.
According to the present invention, since the bag-like portion having a high tensile strength is provided in the circumferential direction of the ring, the outer peripheral surface of the core member is integrated with the covering of the bag-like portion by being covered by pressure bonding, welding, or firing. It is a reinforced fiber structure that is reinforced.
The present invention also provides a bag-like portion woven seamlessly by bag weaving using a reinforcing fiber having a carbon fiber core yarn covered with a heat-sealing yarn, and is resistant to the circumferential direction of the ring. The bag-like portion having a high tension is provided, or a bag weaving using a reinforcing fiber made of a heat-sealed yarn entangled in a linearly-arranged reinforcing fiber with a high tensile strength in the circumferential direction of the ring The bag-like portion is provided, the core member is inserted into the bag-like portion and covered by pressure bonding, welding, or firing, and the outer peripheral surface of the core member is integrally strengthened by the covering of the bag-like portion. It is characterized by.
According to the present invention, a seamless bag-like portion is provided by bag weaving using a yarn of reinforcing fiber provided with a heat-sealing yarn, and has a high tensile strength in the circumferential direction of the ring (high tensile strength). Since the bag-like portion is provided, the core member and the reinforcing fiber are integrated with each other in order to melt and adhere to the core member at the time of pressure bonding, welding or firing (the heat-bonding yarn of the reinforcing fiber is integrated). It is possible to easily manufacture a reinforcing fiber structure having a predetermined size and thickness that melts and fuses with the core member. In addition, the bag-shaped portion having a high tensile strength (high tensile strength) is provided in the circumferential direction of the ring in a bag weaving using a reinforcing fiber made of a heat-sealed yarn entangled in a linear shape with a reinforcing fiber arranged linearly. Therefore, the heat-sealed yarn is melted by thermocompression bonding or the like and fused and bonded to the core member, so that a reinforcing fiber structure in which the core member and the reinforcing fiber are integrated can be efficiently manufactured.
　従来の強化繊維では何枚も重ね合わせなければ所定の厚さや硬度等を得られなかった。また、従来の強化繊維は曲げ強度が弱いとされていた。しかし、本発明によれば、前記強化繊維よりも厚さが厚いものを使用することで、所定厚さの曲げ強度の強い強化繊維構造物が容易に製造でき、また、前記芯部材の外周表面が前記袋状部分の炭素繊維の展延性により被覆され、また、前記芯部材の外周表面が前記袋状部分の炭素繊維の比強度および／または比弾性に被覆にされて、製造できる。 In the case of conventional reinforcing fibers, a predetermined thickness and hardness cannot be obtained unless a plurality of layers are overlapped. In addition, the conventional reinforcing fiber is said to have low bending strength. However, according to the present invention, a reinforcing fiber structure having a predetermined thickness and a high bending strength can be easily manufactured by using a fiber having a thickness greater than that of the reinforcing fiber, and the outer peripheral surface of the core member. Can be manufactured by covering the outer surface of the core member with the specific strength and / or specific elasticity of the carbon fiber of the bag-like portion.
　本発明としては、前記芯部材の表面に凹凸を形成し、或いは損傷させることにより、直線状に配置される強化繊維（炭素繊維）との引っかかりが生じやすくすることが好ましい。
　本発明によれば、前記直線状に配される強化繊維（炭素繊維）が前記芯部材の表面の凹凸や損傷との間で引っ掛かりが生じて圧着、溶着又は焼成の際に前記芯部材の移動が防止されるとともに、芯部材の外周に密着した強化繊維が容易に製造できる。 In the present invention, it is preferable that the core member is easily caught by reinforcing fibers (carbon fibers) arranged in a straight line by forming irregularities or damaging the surface of the core member.
According to the present invention, the reinforcing fibers (carbon fibers) arranged in a straight line are caught between the irregularities and damages on the surface of the core member, and the core member moves during pressure bonding, welding, or firing. In addition, the reinforcing fibers that are in close contact with the outer periphery of the core member can be easily manufactured.
　本発明としては、前記芯部材が金属製部材、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材であり、これらの板状部材の硬度が前記強化繊維の硬度よりも低いことが好ましい。
　本発明によれば、前記芯部材の硬度が低くても、前記強化繊維の硬度がより強いので、前記芯部材の強度が低い点を補うことができる。芯部材として金属製部材を使用すると、導電性の構造（回路基板等）にも使用できる。 In the present invention, the core member is a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member, and the hardness of these plate-like members is lower than the hardness of the reinforced fiber. preferable.
According to this invention, even if the hardness of the said core member is low, since the hardness of the said reinforced fiber is stronger, the point with the low intensity | strength of the said core member can be supplemented. When a metal member is used as the core member, it can be used for a conductive structure (circuit board or the like).
　本発明としては、前記強化繊維を袋織り（或いは袋編み）で袋状部分を形成して、この袋状部分に芯部材である金属製部材、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材を配置して、所定形状に曲げ加工して、圧着、溶着又は焼成して被覆してなることを特徴とする。
　本発明によれば、圧着、溶着又は焼成の際に前記芯部材の移動が防止されるとともに、芯部材の外周に密着した強化繊維が効率的に製造できる。すなわち、袋状部分に板状の芯部材を入れた状態のまま焼成等を行なうと工程の削減が図られるとともに、芯部材に沿って袋状部分が芯部材を被覆する状態になり、被覆精度の向上が図られる。 As the present invention, a bag-like portion is formed by bag-woven (or bag-knitting) the reinforcing fiber, and a metal member, a fiber-reinforced plastic member, a fiber-reinforced ceramic member, or a core member is formed in the bag-like portion, or A fiber-reinforced glass member is disposed, bent into a predetermined shape, and coated by pressure bonding, welding, or firing.
According to the present invention, the core member can be prevented from moving during crimping, welding, or firing, and the reinforcing fibers that are in close contact with the outer periphery of the core member can be efficiently produced. That is, if baking or the like is performed with the plate-shaped core member placed in the bag-shaped portion, the number of processes can be reduced, and the bag-shaped portion can cover the core member along the core member. Is improved.
　本発明としては、前記芯部材が金属製部材、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材であり、これらの表面を凹凸や波型にして前記強化繊維による圧着、溶着又は焼成により被覆の強度が高められることが好ましい。
　本発明によれば、これらの表面を凹凸や波型にして前記強化繊維による圧着、溶着又は焼成により被覆の強度が高められる。前記強化繊維に袋織り（或いは袋編み）で形成された複数の袋状部分が設けられることで、互いの凹凸表面の融合状態がより強固になる。
　ここで、本発明としては、前記強化繊維の芯糸がアクリル繊維を使用したＰＡＮ系またはピッチ系の炭素繊維であり、熱融着糸がカバーリングされた繊維であり、前記芯部材が金属製部材、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材であり、前記強化繊維よりも硬度が低くしても良い。
　本発明によれば、前記芯部材の硬度が低くても、前記強化繊維の硬度がより強いので、前記芯部材の強度が低い点を補うことができる。これにより、建築用の強化構造物等への使用が可能になる。
　なお、前記芯部材である金属製部材や強化プラスチック部材等が前記強化繊維よりも融点が高くすることで、強化繊維のみを圧着、溶着又は焼成して、金属製部材や強化プラスチック部材等の形状を変化させずにその硬度と厚さを維持して所定の大きさと厚みの構造物（均一な素材の構造物）を製造できる。また、芯部材が強化繊維を含ませた繊維強化プラスチック部材等に、前記被覆される強化繊維や袋織り（袋編み）される強化繊維と同じ強化繊維を使用することで、より一層一体的な融合状態に加工することが可能である。また、使用後に廃棄処理するときは、金属製部材や繊維強化プラスチック部材を分離処理することも容易である。 As the present invention, the core member is a metal member, a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member. It is preferable that the strength of the coating is increased by firing.
According to the present invention, the strength of the coating can be increased by making these surfaces uneven and corrugated and pressing, welding or firing with the reinforcing fibers. By providing a plurality of bag-like portions formed by bag weaving (or bag knitting) on the reinforcing fiber, the fused state of the uneven surfaces of each other becomes stronger.
Here, in the present invention, the core yarn of the reinforcing fiber is a PAN-based or pitch-based carbon fiber using an acrylic fiber, the heat-sealed yarn is a covered fiber, and the core member is made of metal. It is a member, a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member, and the hardness may be lower than that of the reinforced fiber.
According to this invention, even if the hardness of the said core member is low, since the hardness of the said reinforced fiber is stronger, the point with the low intensity | strength of the said core member can be supplemented. Thereby, the use to the reinforced structure for construction etc. becomes possible.
In addition, the metal member or the reinforced plastic member, which is the core member, has a melting point higher than that of the reinforced fiber, so that only the reinforcing fiber is crimped, welded, or baked, so that the shape of the metal member, the reinforced plastic member, etc. It is possible to manufacture a structure having a predetermined size and thickness (a structure of a uniform material) while maintaining the hardness and thickness without changing the thickness. Further, by using the same reinforcing fiber as the reinforcing fiber to be coated or the woven fiber that is woven (bag knitted) in the fiber reinforced plastic member or the like in which the core member includes the reinforcing fiber, it is further integrated. It can be processed into a fused state. Moreover, when discarding after use, it is easy to separate the metal member and the fiber reinforced plastic member.
　本発明によれば、圧着、溶着又は焼成の際に熱融着糸が溶融して芯部材に付着・融合するために、芯部材と強化繊維が一体的な所定の大きさや厚みの強化繊維構造物が効率的に製造でき、曲げ強度に強く、耐久性能の高い強化繊維構造物になる。例えば芯部材としてアルミニウムを使用してその周囲にカーボン繊維を圧着させた場合、アルミニウムは展延性に富み、比較的強度が低いが、周囲に圧着されたカーボン繊維が比強度、比弾性ともに優れた高強度素材のためアルミニウムの強度を補う強化繊維構造物となる。このため、建築構造物として使用されるＬ型鋼、Ｈ型鋼またはコの字型鋼として好適なものとなり、また、自動車の車体や船舶や飛行機などの船体の構造物（外壁や内壁）等として適用可能である。また、芯部材に金属製部材を選択した場合には、電気伝導する構造物としても適用可能である。また、使用後に廃棄処理するときは、金属製部材や繊維強化プラスチック部材を分離処理して、これらを再利用することも容易に可能である。
　また、本発明によれば、従来の複数枚の炭素繊維を重ね合わせて圧着する方法で生じていた、炭素繊維と炭素繊維の間に空気が入り込むなどの問題が生じ難く、製造工程も単純化され時間の短縮が図られる。 According to the present invention, the core member and the reinforcing fiber are integrally formed with a reinforcing fiber structure having a predetermined size and thickness so that the heat-sealing yarn melts and adheres to and fuses with the core member during pressure bonding, welding, or firing. The product can be manufactured efficiently, has a strong bending strength, and has a high durability. For example, when aluminum is used as the core member and carbon fibers are crimped around it, aluminum is highly malleable and relatively low in strength, but the carbon fibers crimped around it have both excellent specific strength and specific elasticity. It is a high-strength material, resulting in a reinforced fiber structure that supplements the strength of aluminum. For this reason, it is suitable as L-shaped steel, H-shaped steel or U-shaped steel used as a building structure, and can be applied as a hull structure (outer wall or inner wall) such as a car body or a ship or an airplane. It is. Further, when a metal member is selected as the core member, it can also be applied as a structure that conducts electricity. Moreover, when discarding after use, it is also possible to separate and reuse metal members and fiber reinforced plastic members.
In addition, according to the present invention, problems such as air entering between the carbon fibers and the carbon fibers, which have been caused by the conventional method of laminating and bonding a plurality of carbon fibers, are less likely to occur, and the manufacturing process is simplified. The time is shortened.
本発明を適用した第１の実施形態の強化繊維と袋状部分に金属製板を収納した状態を示す斜視図である。It is a perspective view which shows the state which accommodated the metal plate in the reinforced fiber and bag-like part of 1st Embodiment to which this invention is applied. 上記実施形態の強化繊維構造物と袋状部分を有する強化繊維を示す側面図である。It is a side view which shows the reinforced fiber which has a reinforced fiber structure and a bag-shaped part of the said embodiment. 上記実施形態の強化繊維構造物と袋状部分を有する強化繊維示す斜視図である。It is a perspective view which shows the reinforced fiber which has the reinforced fiber structure and bag-like part of the said embodiment. 上記実施形態の他の例の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforced fiber structure of the other example of the said embodiment, (a) is sectional drawing in which the metal plate was accommodated in the bag-shaped part, (b) is sectional drawing which shows the state crimped | bonded It is. 本発明の第２の実施形態の強化繊維構造物を示す図である。It is a figure which shows the reinforced fiber structure of the 2nd Embodiment of this invention. 上記実施形態の他の例の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforced fiber structure of the other example of the said embodiment, (a) is sectional drawing in which the metal plate was accommodated in the bag-shaped part, (b) is sectional drawing which shows the state crimped | bonded It is. 上記実施形態の他の例の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforced fiber structure of the other example of the said embodiment, (a) is sectional drawing in which the metal plate was accommodated in the bag-shaped part, (b) is sectional drawing which shows the state crimped | bonded It is. 上記第１の実施例の他の例の実施形態の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforcing fiber structure of embodiment of the other example of the said 1st Example, (a) is sectional drawing which accommodated the metal plate in the bag-shaped part, (b) is crimping | compression-bonding It is sectional drawing which shows the state which carried out. 本発明の第３の実施形態の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforced fiber structure of the 3rd Embodiment of this invention, (a) is sectional drawing which accommodated the metal plate in the bag-shaped part, (b) is a cross section which shows the state crimped | bonded FIG. 本発明の第３の実施形態の強化繊維構造物を示す図であり、（ａ）は袋状部分に金属製板を収納した状態を断面図であり、（ｂ）は圧着した状態を示す断面図である。It is a figure which shows the reinforced fiber structure of the 3rd Embodiment of this invention, (a) is sectional drawing which accommodated the metal plate in the bag-shaped part, (b) is a cross section which shows the state crimped | bonded FIG. 上記第３の実施形態の応用例を示す図である。It is a figure which shows the example of application of the said 3rd Embodiment. 上記第３の実施形態の応用例を示す図である。It is a figure which shows the example of application of the said 3rd Embodiment. 上記第２の実施形態の応用例を示す図である。It is a figure which shows the application example of the said 2nd Embodiment. 上記第２の実施形態の応用例を示す図である。It is a figure which shows the application example of the said 2nd Embodiment. 本発明の第４の実施形態の織物組織を示す斜視図である。It is a perspective view which shows the textile structure | tissue of the 4th Embodiment of this invention. 上記第４の実施形態の織物組織を示す側面図である。It is a side view which shows the textile structure of the said 4th Embodiment. 本発明の第５の実施形態の織物組織を示す斜視図である。It is a perspective view which shows the textile structure of the 5th Embodiment of this invention. 上記第５の実施形態の織物組織を示す側面図である。It is a side view which shows the textile structure of the said 5th Embodiment. 本発明の第６の実施形態の織物組織を示す側面図である。It is a side view which shows the textile structure of the 6th Embodiment of this invention.
　本発明を適用した具体的な実施の形態について、図面を参照しながら以下、詳細に説明する。 Specific embodiments to which the present invention is applied will be described in detail below with reference to the drawings.
（第１の実施の形態）
　図１（ａ）（ｂ）は、強化繊維を芯糸にして熱融着糸がカバーリングされた熱融着糸を織り込んだ袋状部分３ａを有する強化繊維の斜視図である。
　第１の実施の形態では、強化繊維の芯糸（カーボン繊維）に熱融着糸（ナイロン）がカバーリングされた強化繊維３が使用され、この強化繊維３で袋状部分３ａが袋織りにより形成されている。袋状部分３ａの大きさは、芯部材２である金属製部材（アルミニウム、或いはアルミニウム合金）が入る程度の大きさになっている。アルミニウム板等の金属製部材３を二枚使用してＬ字に折り曲げられた芯部材２が袋状部分３ａに入れられている（図２（ａ）（ｂ））。芯部材２の厚さＹ２は、強化繊維（炭素繊維）２の厚さＹ１よりも厚く、強化繊維部材である（図３（ａ）（ｂ））。なお、後述するように、二枚の芯部材を袋状部材３ａ，３ａに入れてから焼成等を行ない、そのほぼ中央３ｂからＬ字状に折り曲げ加工しても良い（図４（ａ）（ｂ））。そして、中央連結部３ｂは焼成して、その他は溶着をしても良い。
　本実施の形態袋状部分３ａは、その左右の端部３ｃは開口しているが、片側のみ開口させて、その開口３ｃから芯部材２を差し込んでも良い。なお、本発明は、前記強化繊維３が表裏の間に芯部材２が介材して接合されたものでも良く、つまり被覆される状態であれば良い。本実施の形態では、金属製板３の長さが袋状部分２よりも長いが、金属製部材３の長さが袋状部分３ａよりも短ければ、金属製部材全体が入る状態になる。袋状部分３ａは複数設けられているが、一つでも良く、ここに複数枚の金属製部材３が配置されて良い。また、厚さ方向に複数の袋状部分３ａを形成して、各袋状部分３ａに芯部材２を入れて積層状態にしても良い（図７（ｂ））。
　ここで、袋織りは、二重織りの一つであり、布の両端が表裏接合され、筒状（円環状）になる織り方であり、裁断してみると袋状に織られる。袋状にすることにより、厚みと弾力がでる。袋織りとはその織物がチューブ（円環或いは筒）状に織りあがる。上下に２枚つなぎ合わせたような織りあがりになり、円環の周方向に耐張力の高い、継ぎ目のない織物が得られる。袋編みは、両面（表裏）を袋状に編む方法であり、厚みと弾力がでるとともに、ソフト感がでる。袋織りでも（或いは袋編み）でも良いが、編み目が細かくなることや、袋状部分３ａに空気が入り込み難くできることや、伸縮力が低い袋織りの方が熱圧着性に優れ、金属製板（アルミニウム、或いはアルミニウム合金）２の移動が防止される。ニットには、大きく分けて緯編みと経編みがあり、緯編みは編目が横方向に連続して出来た編地であり、経編みは縦方向に連続した編目を作り出す編み方で、織物にも近いハリ・コシがあり、安定した編み地を作ることができる。袋編みは伸縮性に優れるので、図７（ａ）に示すように、芯部材２の形状が複雑な形状でも、一つの強化繊維による袋状部材３ａに金属製部材（芯部材）２を収納することができ、その形状の金属製部材（芯部材）２に沿って被覆することができる。なお、袋織りの袋状部分３ａと袋編みの袋状部分３ａとの二重構造として、伸縮性の調整をすることも可能である。 (First embodiment)
FIGS. 1A and 1B are perspective views of a reinforcing fiber having a bag-like portion 3a in which a heat-sealing yarn having a reinforcing fiber as a core yarn and covering the heat-sealing yarn is woven.
In the first embodiment, a reinforcing fiber 3 in which a heat-bonding yarn (nylon) is covered is used as the reinforcing fiber core yarn (carbon fiber), and the bag-like portion 3a is formed by bag weaving. Is formed. The size of the bag-like portion 3a is such a size that a metal member (aluminum or aluminum alloy) as the core member 2 can enter. A core member 2 bent into an L shape using two metal members 3 such as an aluminum plate is placed in a bag-like portion 3a (FIGS. 2A and 2B). The thickness Y2 of the core member 2 is thicker than the thickness Y1 of the reinforcing fiber (carbon fiber) 2 and is a reinforcing fiber member (FIGS. 3A and 3B). As will be described later, the two core members may be baked after being put in the bag- like members 3a and 3a, and may be bent into an L shape from substantially the center 3b (FIG. 4 (a) ( b)). And the center connection part 3b may be baked and others may be welded.
Although the left and right end portions 3c of the bag-like portion 3a of the present embodiment are open, only one side may be opened and the core member 2 may be inserted from the opening 3c. In the present invention, the reinforcing fiber 3 may be one in which the core member 2 is joined between the front and back surfaces, that is, as long as it is covered. In the present embodiment, the length of the metal plate 3 is longer than that of the bag-like portion 2, but if the length of the metal member 3 is shorter than that of the bag-like portion 3a, the entire metal member enters. A plurality of bag-like portions 3a are provided, but one may be provided, and a plurality of metal members 3 may be disposed here. Alternatively, a plurality of bag-like portions 3a may be formed in the thickness direction, and the core member 2 may be put in each bag-like portion 3a to be laminated (FIG. 7B).
Here, bag weaving is one type of double weaving, and is a weaving method in which both ends of a cloth are joined to the front and back to form a tube (annular), and when cut, it is woven into a bag. By making it into a bag shape, thickness and elasticity are achieved. With bag weaving, the fabric weaves in the shape of a tube (ring or cylinder). The result is a weaving process in which two pieces are joined together in the top and bottom, and a seamless fabric with high tensile strength in the circumferential direction of the ring is obtained. Bag knitting is a method in which both sides (front and back) are knitted into a bag shape, giving it a thickness and elasticity, as well as a soft feeling. Bag weaving (or bag weaving) may be used, but the stitches become finer, air can hardly enter the bag-like portion 3a, and bag weaving with low stretchability is superior in thermocompression bonding. The movement of the aluminum or aluminum alloy 2 is prevented. There are two types of knit: weft knitting and warp knitting. Weft knitting is a knitted fabric with continuous stitches in the horizontal direction. Warp knitting is a knitting method that creates continuous stitches in the vertical direction. There is also a close elasticity and can make a stable knitted fabric. Since the bag knitting is excellent in elasticity, the metal member (core member) 2 is stored in the bag-shaped member 3a made of one reinforcing fiber even if the shape of the core member 2 is complicated as shown in FIG. And can be coated along the metal member (core member) 2 having the shape. In addition, it is also possible to adjust stretchability as a double structure of the bag-shaped bag-shaped portion 3a and the bag-knitted bag-shaped portion 3a.
　前記強化繊維３として、炭素繊維、炭化繊維、ポリアミド繊維およびガラス繊維の種類からなる。炭素繊維は、ＰＡＮ系またはピッチ系の強化繊維やガラス繊維を用いることができる。繊維強化プラスチックとは、連続又は不連続強化繊維で強化された熱可塑性樹脂または熱硬化性プラスチック複合材である。本明細書中では、所定形状に加工したものを（曲げ加工を含む）、繊維強化プラスチック部材、繊維強化セラミックス部材、又は、繊維強化ガラス部材と表記する。 The reinforcing fiber 3 is made of carbon fiber, carbonized fiber, polyamide fiber, and glass fiber. As the carbon fiber, a PAN-based or pitch-based reinforcing fiber or glass fiber can be used. A fiber reinforced plastic is a thermoplastic resin or thermosetting plastic composite reinforced with continuous or discontinuous reinforcing fibers. In this specification, what was processed into a predetermined shape (including bending) is referred to as a fiber reinforced plastic member, a fiber reinforced ceramic member, or a fiber reinforced glass member.
　強化プラスチック部材に使用されるプラスチックとしては、エポキシ樹脂、ポリエステル樹脂、ビニルエステル樹脂、フェノール樹脂などの熱硬化性樹脂、ポリアミド樹脂、ポリウレタン樹脂等の熱可塑性樹脂が挙げられる。また、繊維強化プラスチックとしては、チタンを含む金属と組み合わせても良い。 Examples of the plastic used for the reinforced plastic member include thermosetting resins such as epoxy resins, polyester resins, vinyl ester resins, and phenol resins, and thermoplastic resins such as polyamide resins and polyurethane resins. Further, the fiber reinforced plastic may be combined with a metal containing titanium.
　繊維強化セラミックス（fiber-reinforced ceramics; FRC）とは、セラミックスのもろいという性質をセラミック繊維を配合することにより靭性化させた強化セラミックスである。マトリックスには高温高強度のセラミックス（アルミナ、炭化ケイ素、窒化ケイ素、炭素など）が用いられ、強化材としての繊維には炭素繊維、炭化ケイ素繊維、アルミナ繊維などが用いられる。また、セラミックウィスカ等で強化された繊維プリフォームにおける繊維表面に、各種特性向上を目的とした表面処理を実施して表面処理層して形成させるものもある。繊維強化セラミック複合材料の場合、セラミックポリマーの含浸・焼成、ＣＶＤ法等によりセラミック材を織物内部等に形成させるものでも良い。また、繊維強化プラスチック複合材の場合、熱硬化性樹脂を流し込んで加熱し固める。繊維強化ガラス系複合材の場合は、ガラス材料を加熱して溶かし、加圧することによりガラス材料を織物内部にしみ込ませるものでも良い。芯部材２が金属製部材では、板状のアルミニウム、アルミニウム合金を使用したが、アルミニウム等の金属材料と前記セラミック繊維や前記炭素繊維・炭化繊維を混練して反応しないように層を形成させる処理しても作成できる。 Fiber-reinforced ceramics (FRC) are reinforced ceramics that have been made tough by mixing ceramic fibers with the brittle nature of ceramics. High-temperature high-strength ceramics (alumina, silicon carbide, silicon nitride, carbon, etc.) are used for the matrix, and carbon fibers, silicon carbide fibers, alumina fibers, etc. are used for the fibers as the reinforcing material. In addition, there is a type in which a surface treatment layer is formed by performing a surface treatment for improving various properties on a fiber surface in a fiber preform reinforced with ceramic whisker or the like. In the case of a fiber reinforced ceramic composite material, a ceramic material may be formed inside the fabric by impregnation / firing of a ceramic polymer, a CVD method, or the like. In the case of a fiber reinforced plastic composite material, a thermosetting resin is poured and heated to be hardened. In the case of a fiber reinforced glass composite material, the glass material may be melted by heating, and the glass material may be soaked into the fabric by pressurization. In the case where the core member 2 is a metal member, plate-like aluminum or aluminum alloy is used, but a layer is formed so as not to react by kneading the metal material such as aluminum with the ceramic fiber or the carbon fiber / carbonized fiber. You can create it.
　第１の実施の形態を建築構造物に使用されるＬ字型形鋼やＨ型形鋼として使用するときは、アルミニウム板等の金属製部材２を二枚使用してＬ字やＨ形状に配置してから圧着、溶着（或いは焼成）する（図６（ａ）（ｂ））。芯部材２は、強化繊維（炭素繊維）２よりも厚さが厚く高い硬度の強化繊維を用いることで、Ｌ型鋼、Ｈ型鋼やアンカーなどの建築構造物を容易に製造できる。芯部材２としてアルミニウムを使用することや、或いは、芯部材を薄くすると、軽量化が図られるが、表面は炭素繊維３で被覆されるために、曲げ強度にも強い。Ｈ型に成型するときは、コ字形状を組み合わせて、一つの袋状部分３ａに収納して成型することができる（図８（ａ）（ｂ））。
　また、図７（ａ）に示すように、凹凸の複雑な形状でも、内部空間部７を形成することで、一つの強化繊維による袋状部材３ａに金属製部材（芯部材）２を収納することができ、芯部材２の形状を変えても、その形状の金属製部材（芯部材）２に沿って被覆することができる。被覆後は、その状態で圧着、溶着又は焼成すると、強化繊維３の熱融着糸が溶融して芯部材２の表面に融合付着して、表面は硬度が高くなる。ここで、圧着、溶着又は焼成しても、製造した製品に袋状部分３ａが確認できた。本実施の形態では、左右の端部を揃えない状態（房）３ｃとしており、これにより端部（開口部分）３ｃの位置が確認し易くしている。本発明としては、焼入れ，焼きなましをすることで調質高張力鋼として降伏比が高く，溶接性がよいので，高圧容器，橋梁，建築などに広く用いられる。なお、熱圧着の方法としては、レーザ溶着（レーザ光を用いる熱圧着）、高周波溶着（超音波用いる熱圧着）、熱板溶着、振動溶着を用いてもよい。
　図７（ｂ）は、芯部材２Ｄが袋状部材３（３ａ）で被覆されて積層状態になっており、その表裏に一般の炭素繊維６を熱圧着させた例である。片面や表裏に一般の炭素繊維（強化樹脂板）６を熱圧着させて、内装用の壁材や床材としての応用が可能である。これらの熱圧着に際しては、プレス機により圧着するほか、型を使用して、圧着する方法で行う。 When the first embodiment is used as an L-shaped steel or an H-shaped steel used in a building structure, it uses two metal members 2 such as aluminum plates to form an L shape or an H shape. After placement, crimping and welding (or firing) are performed (FIGS. 6A and 6B). The core member 2 can easily manufacture building structures such as L-shaped steel, H-shaped steel, and anchors by using reinforcing fibers having a thickness higher than that of the reinforcing fibers (carbon fibers) 2 and higher hardness. If aluminum is used as the core member 2 or the core member is thinned, the weight can be reduced, but the surface is covered with the carbon fiber 3, and therefore the bending strength is strong. When molding into an H-shape, the U-shapes can be combined and stored in one bag-shaped portion 3a (FIGS. 8A and 8B).
Moreover, as shown to Fig.7 (a), the metal member (core member) 2 is accommodated in the bag-shaped member 3a by one reinforcement fiber by forming the internal space part 7 also in the complicated shape of an unevenness | corrugation. Even if the shape of the core member 2 is changed, the metal member (core member) 2 having the shape can be covered. After the coating, when pressure bonding, welding, or firing is performed in that state, the heat-sealing yarn of the reinforcing fiber 3 is melted and fused and adhered to the surface of the core member 2, and the surface has high hardness. Here, the bag-like portion 3a could be confirmed in the manufactured product even after pressure bonding, welding, or firing. In the present embodiment, the left and right end portions are not aligned (a tuft) 3c, which makes it easy to confirm the position of the end portion (opening portion) 3c. The present invention is widely used in high pressure vessels, bridges, buildings, etc. because it has a high yield ratio and good weldability as a tempered high strength steel by quenching and annealing. As a method of thermocompression bonding, laser welding (thermocompression using laser light), high-frequency welding (thermocompression using ultrasonic waves), hot plate welding, or vibration welding may be used.
FIG. 7B shows an example in which the core member 2D is covered with the bag-like member 3 (3a) and is in a laminated state, and general carbon fibers 6 are thermocompression bonded to the front and back. A general carbon fiber (reinforced resin plate) 6 can be thermocompression bonded on one side or front and back, and can be applied as a wall material or flooring material for interior use. These thermocompression bondings are performed by a method of performing pressure bonding using a mold in addition to pressure bonding by a press machine.
（第２の実施の形態）
　図５（ｂ）（ｃ）は、前記強化繊維は綾織又は朱子織の織物組織を袋織りした袋状部の断面図である。図５（ａ）は、平織りと綾織りと朱子織りを説明する図である。
　第２の実施の形態では、前記強化繊維３は綾織又は朱子織の織物組織を袋織りしたものである。平織りでは、経糸と緯糸は一本ずつ組織されるため経糸の本数は緯糸と同数となるが、綾織や朱子織は平織よりも繊維密度を高めることができる（地合が密で厚く，地質は柔らかく，皺（しわ）がよりにくい。）。例えば朱子織であれば経糸の本数はよこ糸３ｄの本数よりも約２．５倍は多くすることができる。そこで、袋織りされた袋状部分３ａの外側の繊維密度が、袋状部分３ａの内側部（芯部材２の圧着面）の繊維密度よりも大きくされているため、強化繊維は外からの物理的外力・損傷に強く耐久性のある構造であり、芯部材２の移動を防止できるとともに、袋状部分３ａの内側部（芯部材の圧着面）に空気が入り込むなどの問題が生じ難くなる。なお、圧着強度を高めるために、芯部材２の表裏面に凹凸や波形を施し（或いは表面を損傷させることにより）、芯部材２に貫通孔を形成して、貫通孔を介して表裏の強化繊維を連結させても良い。芯部材２の表裏面に凹凸や波形２ｚを施し、袋状部分３ａを綾織や朱子織りとすることで、圧着や焼成等の相乗効果により（互いの凹凸２ｚと凹凸２ｚの重合状態が得られることで）、より硬度の向上が図られる。
　前記強化繊維が平織であれば経糸と緯糸は一本ずつ組織されるため経糸の本数は緯糸と同数となるが、綾織や朱子織では平織よりも密度を高めることができる。例えば朱子織であれば、経糸の本数はよこ糸の本数よりも約２．５倍は多くすることができ、綾織組織よりもさらに経糸密度を高めることができる。 (Second Embodiment)
5 (b) and 5 (c) are cross-sectional views of a bag-like portion in which the reinforcing fibers are woven in a twill or satin weave. Fig.5 (a) is a figure explaining plain weave, twill weave, and satin weave.
In the second embodiment, the reinforcing fiber 3 is a bag weave of twill or satin weave. In plain weaving, warp and weft are organized one by one, so the number of warps is the same as weft, but twill or satin weave can increase fiber density than plain weave (the texture is dense and thick, the geology is Soft and less wrinkled.) For example, in the case of satin weaving, the number of warps can be increased by about 2.5 times the number of wefts 3d. Therefore, the fiber density on the outside of the bag-shaped portion 3a woven by the bag is made larger than the fiber density on the inner side of the bag-shaped portion 3a (the crimping surface of the core member 2). The structure is durable and resistant to external force and damage, can prevent the core member 2 from moving, and is less prone to problems such as air entering the inner side of the bag-like portion 3a (the crimping surface of the core member). In order to increase the pressure bonding strength, the front and back surfaces of the core member 2 are roughened or corrugated (or by damaging the surface), through holes are formed in the core member 2, and the front and back surfaces are reinforced through the through holes. You may connect a fiber. By applying unevenness and corrugations 2z to the front and back surfaces of the core member 2 and making the bag-like portion 3a a twill or satin weave, a synergistic effect such as crimping or firing (a polymerization state of the mutual unevenness 2z and unevenness 2z is obtained. Therefore, the hardness can be further improved.
If the reinforcing fiber is a plain weave, the warp and weft are organized one by one, so the number of warps is the same as the weft, but the twill weave and satin weave can have a higher density than the plain weave. For example, in the case of satin weave, the number of warp yarns can be increased by about 2.5 times the number of weft yarns, and the warp density can be further increased as compared with the twill weave structure.
　ここで、平織り(plain weave)は、経糸とよこ糸が１本ごとに交互に浮き沈みして交錯する組織である（図５（ａ））。綾織り(twill weave：斜文織)は、平織りのように交互に浮き沈みせず、組織点が斜めに連続して、綾線を表示させる。通常は右上がりを表とする場合が多い。糸３ｄの太さと密度が同じ場合、綾線は４５°になることが多い（図示右下から左上の方向の斜線となって織物表面に現れる）。朱子織り（satin weave：繻子織り）は、経糸とよこ糸５本以上で、交錯点は一定の間隔で隣り合わないようになり、経糸とよこ糸の数は同じで、最小の組織で一度だけ交錯する。５枚朱子（5 harness satin）は、朱子織りの中で最も簡単な組織で、表裏関係を除けば、交錯点が三飛びのものと二飛びの二種類がある。交錯点の配置がよく、朱子線が目立たないため、綺麗な織物ができる（図５（ａ））。朱子織としては五枚朱子の他、八枚朱子、十枚朱子、十二枚朱子、十六枚朱子、二十四枚朱子などが考えられるがこれらに限定されない。たとえば経五枚朱子であれば、経糸は緯糸と１回だけ交わり、４本の緯糸の上に、経糸が浮いた織物となる。経八枚朱子であれば、経糸は緯糸の７本の上に浮いた織物となる。糸が長く浮くことにより、糸を密に並べることが可能となり、糸間の隙間がなくなる。このことにより地が厚く、柔らかで皺がよりにくく、平らで滑らかとなり光沢が生まれる。 Here, the plain weave is a structure in which warp and weft yarns are alternately raised and submerged one by one (FIG. 5 (a)). The twill weave does not float up and down alternately like a plain weave, and the twill lines are displayed diagonally, and the twill lines are displayed. In many cases, the table is usually going to the right. When the thickness and density of the yarn 3d are the same, the twill line is often 45 ° (appears on the fabric surface as a diagonal line from the lower right to the upper left in the figure). Satin weave (satin weave) is composed of 5 or more warps and wefts. The crossing points are not adjacent to each other at regular intervals. The number of warps and wefts is the same. . 5 harness satin is the simplest organization of satin weaving, and there are two types of crossing points, one with three crossings and the other with two crossings, except for the front and back relationship. The arrangement of the crossing points is good and the satin lines are inconspicuous, so a beautiful fabric can be made (FIG. 5 (a)). As the satin weave, in addition to the five sheets of lions, eight sheets, ten pieces, twelve pieces, twelve pieces, twenty-four pieces, and the like are not limited to these. For example, in the case of warp five satin, the warp intersects with the weft once and becomes a woven fabric in which the warp floats on four wefts. If it is warp eight satin, the warp will be a fabric that floats on seven wefts. When the yarn floats for a long time, it becomes possible to arrange the yarns closely and there is no gap between the yarns. This makes the ground thicker, softer and less wrinkled, flat and smooth and glossy.
　上記綾織と朱子織を使用することで、強化繊維３の表裏で繊維密度を変更したり、袋状部分３ａの外側の繊維密度と袋状部分の内側で繊維密度を変更したりすることが出来る。図５（ｂ）に示すように、袋状部分３ａの外側の繊維密度を袋状部分３ａの内側（芯部材の圧着面側）の繊維密度よりも大きくすると（Ｚ１＜Ｚ２）、強化繊維は外からの物理的外力・損傷に強く耐久性のある構造となる。一方、図５（ｃ）に示すように、袋状部分３ａの外側の繊維密度を袋状部分の内側の繊維密度よりも小さくするため（Ｚ１＜Ｚ２）、芯部材２の移動を防止する効果が高くなる。強化繊維の表裏で繊維密度を変更することでも、これらと同じ作用効果を生じさせる。 By using the twill weave and satin weave, the fiber density can be changed on the front and back of the reinforcing fiber 3, or the fiber density outside the bag-like portion 3a and the fiber density inside the bag-like portion can be changed. . As shown in FIG. 5B, when the fiber density outside the bag-shaped portion 3a is larger than the fiber density inside the bag-shaped portion 3a (on the crimping surface side of the core member) (Z1 <Z2), the reinforcing fibers are The structure is strong and durable against physical external force and damage from the outside. On the other hand, as shown in FIG. 5 (c), in order to make the fiber density outside the bag-like portion 3a smaller than the fiber density inside the bag-like portion (Z1 <Z2), the effect of preventing the core member 2 from moving. Becomes higher. Changing the fiber density between the front and back sides of the reinforcing fiber also produces the same effect.
（第３の実施の形態）
　図９（ａ）（ｂ）と、図１０（ａ）～（ｄ）は、強化繊維を芯糸にして熱融着糸がカバーリングされた熱融着糸３ａを織り込んだ袋状部分３ａを有する強化繊維の斜視図である。
第３の実施の形態は、強化繊維３が所定間隔で袋状部分３ａが形成されており、袋状部分３ａ以外の箇所（連結部）３ｂで折り曲げ加工する。本実施の形態では、２枚の金属製板２を使用して、各々袋状部分３ａに入れられるが、これら袋状部分３ａと袋状部分３ａとの間の部分３ｂを利用して折り曲げ加工する。２枚以上でも良く、図１２（ａ）（ｂ）に示すように、５枚の芯部材２を各々袋状部分３ａに収納して所定角度で折り曲げることができる。第１の実施の形態の場合と異なり、上記中間部３ｂには金属製部材２が配置されていないために曲げ加工が容易である（図１０（ｂ））。上記中間部３ｂには金属製部材２が配置されていないが、袋織りや（或いは袋編み）にて表裏が接合されていると、これらの表裏が熱圧着や焼成により溶着する。なお、上記中間部３ｂには、更に強化繊維を重ね合わせたり、薄い金属製部材２を配置したりしても良い（図１０（ｄ））。また、補強用の強化繊維を介在させたり、バインダーをこの中間部分３ｂにのみ使用して補強したり、又、この中間部分は焼成加工により曲げ加工して、その後は熱圧着加工を施すなどの加工をしても良い。
　ここで、所定角度に曲げるときは、図１３（ａ）（ｂ）に示すように、芯部材２の先端に回転機構（軸２ｊ）配置したり、図１４（ａ）（ｂ）に示すように、回転機構（軸２ｊと軸受け２ｉ）で所定角度に回転可能にすることができる。
　次に、例えば自動車の外壁として使用する場合の曲げ加工する場合（湾曲・屈曲フレームを製造する場合等）は、芯部材２Ｆに厚さの薄い部分２Ｆａを設けて、この厚さの薄い部分２Ｆａを利用して焼成するなどして湾曲させることができる（図１１（ｂ））。袋状部分３ａに板状の芯部材２を入れた状態でＬ字状に曲げてから折り曲げても良いが（図１１（ａ））、袋状部分３ａに板状の芯部材２を入れた状態のまま焼成等を行なうと工程の削減が図られるとともに、芯部材２に沿って袋状部分３ａが芯部材２を被覆することとなる。なお、先に加熱プレス機など所定厚みに形成しておき、前記湾曲部分２Ｆａのみを焼成して所定の湾曲・屈曲のカーブ状態に加工しても良い。いずれの場合も、袋状部分３ａはこれらの曲げ加工に追従して変化するために、その曲げ加工状態に沿っての良好な被覆状態が得られる。 (Third embodiment)
9 (a) and 9 (b) and FIGS. 10 (a) to 10 (d) show a bag-like portion 3a in which a heat-sealing yarn 3a covered with a heat-sealing yarn using a reinforcing fiber as a core yarn is woven. It is a perspective view of the reinforced fiber which has.
In the third embodiment, the bag-like portions 3a are formed at a predetermined interval between the reinforcing fibers 3, and the reinforcing fibers 3 are bent at a portion (connecting portion) 3b other than the bag-like portion 3a. In the present embodiment, the two metal plates 2 are used to be put into the bag-like portions 3a, respectively, and the bending process is performed using the portion 3b between the bag-like portion 3a and the bag-like portion 3a. To do. Two or more sheets may be used, and as shown in FIGS. 12A and 12B, the five core members 2 can be housed in the bag-shaped portion 3a and bent at a predetermined angle. Unlike the case of 1st Embodiment, since the metal member 2 is not arrange | positioned at the said intermediate part 3b, a bending process is easy (FIG.10 (b)). Although the metal member 2 is not disposed in the intermediate portion 3b, if the front and back are joined by bag weaving or (or bag knitting), these front and back are welded by thermocompression bonding or firing. Note that reinforcing fibers may be further stacked on the intermediate portion 3b, or a thin metal member 2 may be disposed (FIG. 10D). Further, reinforcing reinforcing fibers are interposed, the binder is used only for the intermediate portion 3b to reinforce, the intermediate portion is bent by baking, and then subjected to thermocompression bonding. It may be processed.
Here, when bending to a predetermined angle, as shown in FIGS. 13 (a) and 13 (b), a rotation mechanism (shaft 2j) is arranged at the tip of the core member 2, or as shown in FIGS. 14 (a) and 14 (b). In addition, the rotation mechanism (the shaft 2j and the bearing 2i) can be rotated at a predetermined angle.
Next, for example, in the case of bending when used as an outer wall of an automobile (for example, when manufacturing a curved / bent frame), a thin portion 2Fa is provided on the core member 2F, and this thin portion 2Fa is provided. It can be bent by firing using (FIG. 11B). Although it may be bent after being bent into an L shape with the plate-shaped core member 2 in the bag-shaped portion 3a (FIG. 11 (a)), the plate-shaped core member 2 is inserted into the bag-shaped portion 3a. When firing or the like is performed in the state, the number of steps is reduced, and the bag-like portion 3 a covers the core member 2 along the core member 2. Alternatively, a predetermined thickness such as a heating press may be formed first, and only the curved portion 2Fa may be fired and processed into a predetermined curved / bent curved state. In any case, since the bag-like portion 3a changes following these bending processes, a good covering state along the bending process state can be obtained.
　溶着方法としては、加熱手段を備えた加圧成形装置、圧縮成形装置、真空圧着成形装置等を用いることができる。圧着は、熱溶着、熱プレスや加熱ロールプレス等のプレス機を用いることができる。加熱条件は、金属製部材の融点よりも低い温度が好ましい。また、比較的低い温度で熱圧着した後に、例えば曲げ加工する箇所に焼成して曲げても良い。上記加熱プレス成形の前に、バインダー成分が溶融する温度にて予備加熱してから、本加熱し、上記部分的な焼成（折り曲げ箇所や調整のための曲げ加工）を行なってもよい。
　プレス等による溶着に際しては、バインダー（結合剤）を使用する。バインダーとしては、ポリエステル、ポリビニルアルコール、ポリアクリル酸、ポリウレタン、メラミン樹脂、フェノール樹脂、エポキシ樹脂などを用いることができる。これらのバインダーを塗布して加熱溶着することで、前記芯部材２の硬度よりも前記強化繊維３の硬度を高くしても良い。
　ここで、芯部材２が強化繊維を含ませた繊維強化プラスチック部材等であるとき、前記被覆される強化繊維３と同じ強化繊維を使用することが好ましい。すなわち、芯部材２である繊維強化プラスチック部材に含ませる強化繊維が炭素繊維である場合、前記被覆される強化繊維３を同じ強化繊維である炭素繊維を使用することが好ましい。袋織り（或いは袋編み）される袋状部分３ａのみだけでも同じ強化繊維３ａとしても良い。前記強化繊維の芯糸がアクリル繊維を使用したＰＡＮ系またはピッチ系の炭素繊維であり、強化繊維を含ませた繊維強化プラスチック部材等とする。これにより熱融着糸３ａが芯部材２の表面により一層溶融し易くなり、付着力（融合状態）が良好になる。 As the welding method, a pressure molding device, a compression molding device, a vacuum pressure molding device, or the like provided with a heating means can be used. For the pressure bonding, a press machine such as heat welding, a heat press or a heated roll press can be used. The heating condition is preferably a temperature lower than the melting point of the metal member. Further, after thermocompression bonding at a relatively low temperature, for example, it may be baked and bent at a place to be bent. Prior to the hot press molding, preheating may be performed at a temperature at which the binder component melts, followed by main heating, and the partial firing (bending portion or bending for adjustment) may be performed.
A binder (binder) is used for welding by pressing or the like. As the binder, polyester, polyvinyl alcohol, polyacrylic acid, polyurethane, melamine resin, phenol resin, epoxy resin, or the like can be used. The hardness of the reinforcing fiber 3 may be made higher than the hardness of the core member 2 by applying these binders and heat-welding them.
Here, when the core member 2 is a fiber reinforced plastic member or the like containing reinforcing fibers, it is preferable to use the same reinforcing fibers as the reinforcing fibers 3 to be coated. That is, when the reinforcing fiber included in the fiber reinforced plastic member that is the core member 2 is a carbon fiber, it is preferable to use the carbon fiber that is the same reinforcing fiber as the reinforcing fiber 3 to be coated. Only the bag-shaped portion 3a to be woven (or bag-knitted) may be the same reinforcing fiber 3a. The core yarn of the reinforcing fiber is a PAN-based or pitch-based carbon fiber using acrylic fiber, and a fiber-reinforced plastic member or the like including the reinforcing fiber is used. As a result, the heat-fusible yarn 3a is more easily melted on the surface of the core member 2, and the adhesion (fused state) is improved.
（第４の実施の形態）
　図１５は、織物組織の拡大斜視図である。本実施例に係る織物組織は、互いに略平行に配列された１つ以上の強化繊維３ｄの経糸、及び互いに略平行に配列された１つ以上の熱融着糸４の緯糸を備える強化繊維である。強化繊維３ｄの経糸と熱融着糸４の緯糸とは、互いに交叉状（略９０°の角度）をなして配される。１つ以上の強化繊維３ｄの経糸と１つ以上の強化繊維３ｄの緯糸とは、互いに織り込まれて、例えば平織りや綾織り組織、朱子織り組織、それらの組み合わせた組織である。 (Fourth embodiment)
FIG. 15 is an enlarged perspective view of the fabric structure. The woven fabric structure according to the present embodiment is a reinforcing fiber including warps of one or more reinforcing fibers 3d arranged substantially parallel to each other and one or more weft yarns of one or more heat fusion yarns arranged substantially parallel to each other. is there. The warp yarns of the reinforcing fibers 3d and the weft yarns of the heat fusion yarn 4 are arranged so as to cross each other (approximately 90 ° angle). The warp yarns of the one or more reinforcing fibers 3d and the weft yarns of the one or more reinforcing fibers 3d are woven together, for example, a plain weave, twill weave, satin weave, or a combination thereof.
　図１６は、図１５の織物組織の側面図である。熱融着糸４を緯糸とし、強化繊維を経糸として、袋織りした袋状部分の織物組織を一部拡大して側面から見た図である。熱融着糸４の緯糸は強化繊維３ｄの経糸より細く、熱融着糸４の緯糸は波状にうねり、波状部に略直線状の強化繊維３ｄの経糸が配される。すなわち、織物組織は、熱融着糸４の緯糸が上下して屈曲した形態に対して、強化繊維３ｄの経糸が略直線状に配された平織り等の組織である。強化繊維３ｄの経糸は略直線状とされ、強化繊維３ｄは炭素繊維が好適である。炭素繊維は、好ましくはフィラメント数が約５０００～１５０００本で、太さが約１０００～１００００デシテックスの繊維束が使用される。強化繊維は、複数の強化繊維の束であっても良い。強化繊維は炭素繊維に熱融着糸４が組み合わされていても良く、組み合わされると強化繊維が撓みやすくなり、袋織りの柔軟性が向上する。 FIG. 16 is a side view of the fabric structure of FIG. It is the figure which expanded the textile structure of the bag-shaped part which carried out the bag sack using the weft yarn 4 as the weft and the reinforcing fiber as the warp, and was seen from the side. The weft yarn of the heat-sealing yarn 4 is thinner than the warp yarn of the reinforcing fiber 3d, the weft yarn of the heat-sealing yarn 4 undulates, and the warp portion of the substantially straight reinforcing fiber 3d is arranged in the wavy portion. That is, the fabric structure is a structure such as a plain weave in which the warp yarns of the reinforcing fibers 3d are arranged in a substantially straight line with respect to the form in which the weft yarns of the heat fusion yarn 4 are bent up and down. The warp of the reinforcing fiber 3d is substantially linear, and the reinforcing fiber 3d is preferably a carbon fiber. The carbon fiber is preferably a fiber bundle having a filament number of about 5000 to 15000 and a thickness of about 1000 to 10,000 dtex. The reinforcing fiber may be a bundle of a plurality of reinforcing fibers. The reinforcing fiber may be a combination of the carbon fiber and the heat-sealing yarn 4, and when combined, the reinforcing fiber is easily bent and the flexibility of the bag weave is improved.
　熱融着糸４の緯糸は、強化繊維３ｄよりも、細い糸及び／又は撓む糸であり、例えば、５０～１００デシテックスの糸が使用されている。熱融着糸４を構成する樹脂は、特に限定されず、加熱することにより溶融する樹脂であればよい。該加熱温度も特に限定されず、一般に、８０～２００℃、好ましくは、８０～１００℃である。熱融着糸４としては、ポリエステル系樹脂を用いたポリエステル系繊維、及びポリアミド系樹脂を用いたポリアミド系繊維が好ましい。ポリアミド系繊維であればナイロン等が好適である。 The weft yarn of the heat-sealing yarn 4 is a thinner yarn and / or a bent yarn than the reinforcing fiber 3d, and for example, a yarn of 50 to 100 dtex is used. The resin constituting the heat-bonding yarn 4 is not particularly limited as long as it is a resin that melts by heating. The heating temperature is not particularly limited, and is generally 80 to 200 ° C, preferably 80 to 100 ° C. As the heat-sealing yarn 4, a polyester fiber using a polyester resin and a polyamide fiber using a polyamide resin are preferable. Nylon or the like is suitable for polyamide fibers.
　織物組織とした際に、強化繊維は直線状の糸状であり、撓みがない構成であるから、強化繊維は、引張りに対して伸縮が生じない構成であり、耐張力の高い構成とされる。本実施例では、強化繊維３ｄは経糸として配されているため、織物組織は経方向に耐張力の高い構成となる。熱融着糸４を経糸として強化繊維を緯糸としても良く、強化繊維の配された方向に沿って引張強度の高い強化繊維構造物にできる。 When the woven structure is formed, the reinforcing fiber is a straight thread-like shape and does not bend. Therefore, the reinforcing fiber has a structure in which expansion and contraction does not occur with respect to tension and has a high tensile strength. In this embodiment, since the reinforcing fibers 3d are arranged as warps, the fabric structure has a high tensile strength in the warp direction. The heat fusion yarn 4 may be a warp and the reinforcing fiber may be a weft, and a reinforcing fiber structure having high tensile strength can be formed along the direction in which the reinforcing fiber is arranged.
（第５の実施の形態）
　図１７は、第５の実施の形態を示す斜視図であり、図１５に示した第４の実施例の織物組織を２層に重ねている。上層の織物組織の強化繊維３ｄが配される方向と、下層の織物組織の強化繊維３ｄの配される方向とは、互いに略９０°の角度をなして構成され、密に重ね合わされる（図１７矢印ａ）。 (Fifth embodiment)
FIG. 17 is a perspective view showing the fifth embodiment, in which the fabric structure of the fourth example shown in FIG. 15 is stacked in two layers. The direction in which the reinforcing fibers 3d of the upper layer fabric structure are arranged and the direction in which the reinforcing fibers 3d of the lower layer fabric structure are arranged are formed at an angle of approximately 90 ° and are closely overlapped (see FIG. 17 arrow a).
　図１８は、図１７の２層に重ねた織物組織をＹ軸に沿って図１７の矢印ｂから見た織物組織の側面図である。袋織の袋状部分を二層で構成して、上層の織物組織は図１５に示した織物組織と同様であるため説明を省略する。下層の織物組織は、上層の織物組織をＸＹ平面上に９０°の角度回転したものであり、すなわち、熱融着糸４の経糸は強化繊維３ｄの緯糸より細く、熱融着糸４の経糸は波状にうねり上下して屈曲した形態に対して、略直線状の強化繊維３ｄの緯糸が配されて、平織り組織を形成する。上層の織物組織の強化繊維３ｄと、下層の織物組織の強化繊維３ｄとは、互いに織り込まれず重なるようにして層状に配されるため、上層及び下層の強化繊維は波状にうねることがなく、直線状であり、撓みがない構成である。上層の織物組織と下層の織物組織とは、それぞれ独立した状態で芯部材に２重に被覆される。袋状部分をそれぞれ独立させて複数枚重ねて芯部材に被覆することで所望の方向及び強度を持たせることができる。 FIG. 18 is a side view of the fabric structure as viewed from the arrow b of FIG. 17 along the Y axis of the fabric structure superimposed on the two layers of FIG. The bag-shaped portion of the bag weave is composed of two layers, and the upper layer fabric structure is the same as the fabric structure shown in FIG. The lower layer fabric structure is obtained by rotating the upper layer fabric structure by an angle of 90 ° on the XY plane. That is, the warp yarn of the heat fusion yarn 4 is thinner than the weft yarn of the reinforcing fiber 3d. Is a wavy yarn of a substantially straight reinforcing fiber 3d with respect to a shape that is bent up and down in a wavy shape to form a plain weave structure. Since the reinforcing fibers 3d of the upper layer fabric structure and the reinforcing fibers 3d of the lower layer fabric structure are arranged in layers so as not to interweave each other, the upper layer and the lower layer reinforcing fibers do not wavy and are straight. It is a shape and is a structure without bending. The upper layer fabric structure and the lower layer fabric structure are coated on the core member twice in an independent state. A desired direction and strength can be provided by stacking a plurality of bag-like portions independently and covering the core member.
　（第６の実施の形態）
　図１９では、上層の織物組織と下層の織物組織が一体化した織物組織を示す。上層の織物組織において、熱融着糸４の緯糸は強化繊維３ｄの経糸より細く、熱融着糸４の緯糸は波状にうねり上下して屈曲した形態に対して、略直線状の強化繊維３ｄの経糸が配されて、平織り等の組織を形成する。また下層の織物組織において、熱融着糸４の経糸は強化繊維３ｄの緯糸より細く、熱融着糸４の経糸は波状にうねり上下して屈曲した形態に対して、略直線状の強化繊維３ｄの緯糸が配されて、平織り等の組織を形成する。本実施の形態では、上層の熱融着糸と下層の熱融着糸とは互いに織り込まれて織物組織を構成する。上層及び下層の強化繊維は波状にうねることがなく、直線的であり、撓みが少ない構成とされたまま一体化される。 (Sixth embodiment)
FIG. 19 shows a fabric structure in which an upper layer fabric structure and a lower layer fabric structure are integrated. In the upper fabric structure, the weft yarn of the heat-sealing yarn 4 is thinner than the warp yarn of the reinforcing fiber 3d, and the weft yarn of the heat-sealing yarn 4 undulates in a wavy shape and is bent up and down, and is substantially linear reinforcing fiber 3d. The warp yarns are arranged to form a structure such as a plain weave. Further, in the fabric structure of the lower layer, the warp yarn of the heat-sealing yarn 4 is thinner than the weft yarn of the reinforcing fiber 3d, and the warp yarn of the heat-sealing yarn 4 undulates up and down in a wavy shape and is bent in a substantially straight shape. 3d wefts are arranged to form a structure such as a plain weave. In the present embodiment, the upper layer heat fusion yarn and the lower layer heat fusion yarn are woven together to form a woven fabric structure. The upper layer and lower layer reinforcing fibers do not wavy, are straight, and are integrated with a configuration with little deflection.
　上述の構成とすることで、上層の織物組織と下層の織物組織との位置が、熱融着糸によって固定されて、２層の織物組織が一体化し位置ずれを起こすことを防止する。従って緯方向に引張強度（耐張力）の高い袋状部分と、縦方向に耐張力の高い袋状部分との２層が予め重ね合わされた状態で一体化され、緯方向及び経方向に耐張力の高い一つの袋状部分として構成されて、緯方向及び経方向に耐張力の高い構成の強化繊維構造物となる。 By adopting the above-described configuration, the positions of the upper layer fabric structure and the lower layer fabric structure are fixed by the heat-sealing yarn, and the two layers of the fabric structure are prevented from being integrated to cause a positional shift. Therefore, two layers of a bag-shaped part with high tensile strength (tension resistance) in the weft direction and a bag-shaped part with high tensile strength in the longitudinal direction are integrated in a pre-overlapped state, and the tensile strength in the weft direction and the warp direction is integrated. It is comprised as one high bag-like part, and becomes a reinforced fiber structure of a structure with high tensile strength in the weft direction and the warp direction.
　なお本実施例において、上層の織物組織と下層の織物組織とは、どちらも緯方向に耐張力の高い袋状部分として２重として一体化してもよく、どちらも縦方向に耐張力の高い袋状部分として２重として一体化してもよく、所望の方向へ耐張力が高くなるように一体化して構成できる。
　本発明においては、上記実施例に限られず、目的、用途に応じて本発明の範囲内で種々変更した実施例とすることができる。例えば、強化繊維３ｄに対する熱融着糸４の挿入間隔は特に限定されない。具体的には、熱融着糸４の経糸の挿入間隔は、強化繊維３ｄの経糸の１本おきとしてもよく、２本以上おきとしてもよい。また、熱融着糸４の緯糸の挿入間隔は、強化繊維３ｄの緯糸の１本おきとしてもよく、熱融着糸４の緯糸の挿入間隔を、強化繊維３ｄの緯糸の２本以上おきとしてもよい。 In this embodiment, both the upper layer fabric structure and the lower layer fabric structure may be integrated as a double bag-like portion having a high tensile strength in the weft direction, and both are bags having a high tensile strength in the vertical direction. It may be integrated as a double portion as a shape portion, or can be integrated and configured so that the tensile strength is increased in a desired direction.
In the present invention, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention depending on the purpose and application. For example, the insertion interval of the heat fusion yarn 4 with respect to the reinforcing fiber 3d is not particularly limited. Specifically, the insertion interval of the warp yarns of the thermal fusion yarn 4 may be every other warp yarn of the reinforcing fiber 3d, or every two or more warp yarns. The weft insertion interval of the thermal fusion yarn 4 may be every other weft yarn of the reinforcing fiber 3d, and the insertion interval of the weft yarn of the thermal fusion yarn 4 is every two or more weft yarns of the reinforcing fiber 3d. Also good.
　以上、本実施形態では、建築構造物に使用されるＬ字型形鋼やＨ型形鋼として使用する例を主に説明したが、本発明は自動車や車両の構造部材（胴体や内壁）、飛行機・飛行船の構造部材（胴体や内壁）や、これらの外壁のみならず内壁や床材等、自動車や車両の部品（座席フレーム等）、飛行機・飛行船の部品（座席フレーム等）や、建材、外壁材等に広く適用可能である。また、芯部材２として金属製部材を使用すると、導電性の構造（回路基板等）にも使用できる。 As mentioned above, in this embodiment, although the example mainly used as an L-shaped steel and an H-shaped steel used for a building structure was explained, the present invention is a structural member (body or inner wall) of an automobile or a vehicle, Structural members (fuselage and inner walls) of airplanes and airships, not only these outer walls, but also inner walls and flooring, automobile and vehicle parts (seat frames, etc.), airplane / airship parts (seat frames, etc.), building materials, Widely applicable to outer wall materials. Further, when a metal member is used as the core member 2, it can also be used for a conductive structure (circuit board or the like).
１　　　　強化繊維構造物、
２，２Ａ，２Ｂ，２Ｃ，２Ｄ，２Ｅ，２Ｆ　　芯部材（金属製部材等）、
２ｚ　　　芯部材の表裏面の凹凸（波形）、
３　　　　強化繊維（袋状部分）、３ａ　　　袋状部分、　
３ｃ　　房（袋状部材の開口部）、３ｂ　中央（折り曲げ部）、
３ｄ　　　強化繊維の糸、
５　　　　強化繊維構造物（焼成後、圧着後）、

 
  1 Reinforced fiber structure,
2, 2A, 2B, 2C, 2D, 2E, 2F Core member (metal member, etc.)
2z Unevenness (waveform) on the front and back surfaces of the core member,
3 Reinforcing fiber (bag-like part), 3a Bag-like part,
3c tuft (opening of bag-like member), 3b center (folded portion),
3d yarn of reinforcing fiber,
5 Reinforced fiber structure (after firing, after crimping),


Claims (10)

  1. 　熱融着糸が配された強化繊維を用いて袋織りにより円環の周方向に耐張力の高い袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されていることを特徴とする強化繊維構造物。 A bag-like portion having a high tensile strength is provided in the circumferential direction of the ring by bag weaving using a reinforcing fiber on which a heat-sealing yarn is arranged, and a core member is inserted into the bag-like portion and subjected to pressure bonding, welding, or firing. A reinforcing fiber structure, characterized in that the outer peripheral surface of the core member is integrally reinforced by the covering of the bag-like portion.
  2. 　炭素繊維の芯糸に熱融着糸がカバーリングされた強化繊維を用いて、袋織りで継ぎ目のない製織された袋状部分が設けられて円環の周方向に耐張力の高い前記袋状部分が設けられるか、又は、直線的に配された強化繊維に波状に絡む熱融着糸からなる強化繊維を用いた袋織りで円環の周方向に耐張力の高い前記袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されていることを特徴とする強化繊維構造物。 The bag-like shape having a high tensile strength in the circumferential direction of an annulus provided with a bag-like portion that is seamlessly woven by bag-weaving using a reinforcing fiber having a carbon fiber core yarn covered with a heat-sealing yarn Part is provided, or the bag-like part having a high tensile strength is provided in the circumferential direction of the ring by bag weaving using a reinforcing fiber made of a heat-sealing yarn entangled in a straight line with a reinforcing fiber arranged linearly A reinforcing fiber, wherein the core member is inserted into the bag-like portion and covered by pressure bonding, welding or firing, and the outer peripheral surface of the core member is integrally reinforced by the covering of the bag-like portion Structure.
  3. 　前記芯部材の比強度および／または比弾性は前記袋状部材の炭素繊維の芯糸の比強度および／または比弾性よりも弱いが、圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の炭素繊維の比強度および／または比弾性に被覆にされていることを特徴とする請求項１又は２記載の強化繊維構造物。 The specific strength and / or specific elasticity of the core member is weaker than the specific strength and / or specific elasticity of the carbon fiber core yarn of the bag-shaped member, but the outer peripheral surface of the core member is coated by pressure bonding, welding or firing. The reinforcing fiber structure according to claim 1 or 2, wherein the reinforced fiber structure is coated with a specific strength and / or a specific elasticity of the carbon fibers in the bag-like portion.
  4. 　前記芯部材の展延性は前記袋状部材の炭素繊維の芯糸の展延性よりも大きいが、圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の炭素繊維の展延性に被覆されていることを特徴とする請求項１又は２記載の強化繊維構造物。 The spreadability of the core member is greater than the spreadability of the core fiber of the carbon fiber of the bag-shaped member, but the outer surface of the core member is coated by crimping, welding, or firing, and the carbon fiber of the bag-shaped portion is spread. The reinforcing fiber structure according to claim 1 or 2, wherein the reinforcing fiber structure is coated with ductility.
  5. 　圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の厚さに被覆され、前記袋状部分の厚さは前記芯部材の厚さに応じて厚く形成することを特徴とする請求項１又は２記載の強化繊維構造物。 The outer peripheral surface of the core member is covered with the thickness of the bag-like portion by being coated by crimping, welding, or firing, and the thickness of the bag-like portion is formed thick according to the thickness of the core member. The reinforcing fiber structure according to claim 1 or 2.
  6. 　前記袋状部分は綾織又は朱子織で形成され、前記芯部材の圧着面側と前記袋状部分の外側とで前記綾織又は前記朱子織による繊維密度が異なることを特徴とする請求項１ないし４のいずれか１項記載の強化繊維構造物。 5. The bag-shaped portion is formed of a twill weave or a satin weave, and the fiber density of the twill weave or the satin weave is different between the crimping surface side of the core member and the outside of the bag-shaped portion. The reinforcing fiber structure according to any one of the above.
  7. 　熱融着糸が配された強化繊維を用いて袋織りにより円環の周方向に耐張力の高い袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の被覆により一体的に強化されていることを特徴とする強化繊維構造物の製造方法。 A bag-like portion having a high tensile strength is provided in the circumferential direction of the ring by bag weaving using a reinforcing fiber on which a heat-sealing yarn is arranged, and a core member is inserted into the bag-like portion and subjected to pressure bonding, welding, or firing. A method for producing a reinforced fiber structure, characterized in that the outer peripheral surface of the core member is integrally reinforced by covering the bag-shaped portion.
  8. 　炭素繊維の芯糸に熱融着糸がカバーリングされた強化繊維を用いて、袋織りで継ぎ目のない製織された袋状部分が設けられて円環の周方向に耐張力の高い前記袋状部分が設けられるか、又は、直線的に配された強化繊維に波状に絡む熱融着糸からなる強化繊維を用いた袋織りで円環の周方向に耐張力の高い前記袋状部分が設けられ、芯部材が前記袋状部分に挿入されて圧着、溶着又は焼成により被覆されて前記芯部材の外周表面が前記袋状部分の厚さに被覆され、前記袋状部分の厚さは前記芯部材の厚さに応じて厚く形成することを特徴とする強化繊維構造物の製造方法。 The bag-like shape having a high tensile strength in the circumferential direction of an annulus provided with a bag-like portion that is seamlessly woven by bag-weaving using a reinforcing fiber having a carbon fiber core yarn covered with a heat-sealing yarn Part is provided, or the bag-like part having a high tensile strength is provided in the circumferential direction of the ring by bag weaving using a reinforcing fiber made of a heat-sealing yarn entangled in a straight line with a reinforcing fiber arranged linearly The core member is inserted into the bag-like portion and coated by pressure bonding, welding or firing, and the outer peripheral surface of the core member is covered with the thickness of the bag-like portion, and the thickness of the bag-like portion is the core A method for producing a reinforced fiber structure, wherein the reinforcing fiber structure is formed thick according to the thickness of a member.
  9. 　前記袋状部分は炭素繊維の芯糸に熱融着糸がカバーリングされた強化繊維を用いて袋織りで製織するものであり、平織、綾織又は朱子織で形成することを特徴とする請求項７又は８記載の強化繊維構造物の製造方法。 The bag-shaped portion is woven by bag weaving using a reinforcing fiber having a carbon fiber core yarn covered with a heat-sealing yarn, and is formed by plain weaving, twill weaving or satin weaving. The manufacturing method of the reinforced fiber structure of 7 or 8.
  10. 　前記袋状部分は綾織又は朱子織で形成され、前記芯部材の圧着面側と前記袋状部分の外側とで前記綾織又は前記朱子織による繊維密度が異なることを特徴とする請求項７又は８記載の強化繊維構造物の製造方法。

          9. The bag-like portion is formed of a twill weave or a satin weave, and the fiber density of the twill weave or the satin weave is different between the crimping surface side of the core member and the outside of the bag-like portion. The manufacturing method of the reinforced fiber structure of description.

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