JP2017213817A - Fabric laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fabric laminate before molding a molded article having no need for a melting process of a thermoplastic resin and preliminary size enlargement, excellent in handleability such as carrying and less in unnecessary twisting or slippage during molding.SOLUTION: When a molded article is obtained by arranging a fabric laminate 10 by laminating a fabric 12 containing a fiber reinforced composite material in molding die 16 and 18 in advance and injecting a resin into the molding dies 16 and 18, a binding part 14 where all laminated fabrics 12 are bound by individual binding means is arranged at a prescribed position in a plane view of the laminated fabric 12. The binding means is selected from a fibrous body or cable body 20, a binding band 38 and a binding tool 34. Unnecessary slippage or movement to the molding die is inhibited by engaging an engagement part 22 or a circular hole (open hole) 26 arranged in the binding part 14 with a projection arranged in the molding dies 16 and 18.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fabric laminate, and more particularly to a fabric laminate in which fabrics having fiber-reinforced composite materials are laminated.

  2. Description of the Related Art Cloths that are woven using fiber reinforced composite materials such as CFRP (Carbon Fiber Reinforced Plastic), for example, for warp and weft are generally known. A plurality of such fabrics are laminated to form a fabric laminate, and the fabric laminate is placed in a mold to obtain a molded product. For example, at the time of molding a molded product using a molding die such as RTM (Resin Transfer Molding), the fabric laminate is clamped with a molding die, and in some cases, the inside of the die is decompressed, and the resin is injected into the die. This resin is impregnated and cured throughout the fabric laminate, and the shape of the molded product after molding is maintained. This impregnating resin is also referred to as a matrix resin.

  If the fabric laminate before molding of the molded product is simply laminated, for example, the fabric laminate is likely to be separated when being carried, or to be distorted or displaced during molding. Therefore, preliminary shaping called a preform is performed on the fabric laminate before forming the molded product. There are various methods for this pre-shaping, but most commonly, a preform is sprayed on a sheet of fabric placed on a pre-shaping mold, and the fabric is layered thereon. Repeat the spraying of preform powder manually. The fabric laminate thus obtained is clamped with a pre-shaped mold and pre-shaped. At the time of molding a molded product using a mold, this pre-shaped fabric laminate is used.

  However, manual pre-shaping work is cumbersome and time consuming. Therefore, for example, a fabric laminate described in Patent Document 1 below has been proposed. In this fabric laminate, a fabric is composed of reinforcing fibers and thermoplastic resin or thermoplastic fiber, and a part of the reinforcing fibers of the fabric laminate is melted and solidified by melting a part of this thermoplastic resin or thermoplastic fiber. To fix. Thereby, it is said that the fabric laminated body before shaping | molding of the molded product which is excellent in handleability, such as carrying around, and there are few twists and deviation | shift at the time of shaping | molding can be provided.

JP-A-5-261849

  However, in the fabric laminate described in Patent Document 1 described above, it is difficult to manage the melting temperature of the thermoplastic resin or thermoplastic fiber. Further, in order to uniformly melt the thermoplastic resin or the thermoplastic fiber by a simple method in all the fabrics of the plurality of laminated fabrics, as described in Patent Document 1, the outer peripheral portion of the fabric laminate is used. The fixing part of the reinforcing fiber is regulated. In the fabric laminate provided for forming a molded product without pre-shaping, all the fabrics should be fixed at a portion where the laminated fabric is not desired to be displaced at the time of molding the molded product. It is not the outer periphery. In addition, in order to form the reinforcing fiber fixing portion at an arbitrary position of the fabric laminate other than the outer peripheral portion, a melting device having a complicated structure and high cost, such as an infrared heating device, is required. Above all, a thermoplastic resin or thermoplastic fiber is essential in the fabric. That is, there is room for improvement in the process itself of melting the thermoplastic resin or thermoplastic fiber in the fabric laminate.

  The present invention has been made in view of the above problems, and its purpose is not to require a complicated process such as a melting process, and does not require pre-shaping, and is excellent in handling properties such as carrying, and at the time of molding. An object of the present invention is to provide a fabric laminate before forming a molded product with less unnecessary twisting and shifting.

  In order to achieve the above object, according to the first aspect of the present invention, in order to obtain a molded product by injecting a resin into a mold, a fabric having a fiber-reinforced composite material previously placed in the mold is laminated. In the fabric laminated body, the laminated fabric is provided at a predetermined position in a plan view, and has a bundling portion in which all the laminated fabrics are bundled by individual bundling means.

  According to this configuration, at the time of molding a molded product, a portion of the laminated fabric that is not desired to be shifted is set to a specified position in the plan view of the laminated fabric, and all of the layers laminated by the individual bundling means are set at this specified position. These fabrics are bound to form a binding part. Accordingly, it is possible to provide a fabric laminate prior to molding a molded product, which is excellent in handling properties such as carrying without preliminarily shaping, and has little unnecessary twisting and shifting at the time of molding. In that case, the fabric does not require a thermoplastic resin or thermoplastic fiber, nor does it require a melting step thereof.

  According to a second aspect of the present invention, in the fabric laminate according to the first aspect, the binding means is selected from a fibrous body or a cord, a binding band, and a binding tool.

  According to this configuration, the binding means can be selected from familiar members, and an increase in cost can be suppressed.

  According to a third aspect of the present invention, in the fabric laminate according to the first or second aspect, the binding portion has an engaging portion that engages with a protrusion provided on the mold.

  According to this configuration, by engaging the engaging portion provided in the bundling portion with the projection of the molding die, unnecessary shift and movement with respect to the molding die during molding can be suppressed.

  According to a fourth aspect of the present invention, in the fabric laminate according to any one of the first to third aspects, the binding portion penetrates from one end surface to the other end surface in the stacking direction of the stacked fabrics. It has a through-hole and a stitching structure that continues from one end surface to the other end surface in the stacking direction of the stacked fabrics on a part or all of the inner periphery of the through-hole.

  According to this configuration, the fibrous body, the cable body, and the binding band are used as the binding means, and a part or the entire periphery of the inner periphery of the through hole is stitched to form a stitched structure. Thereby, a bundling part can be constituted by a simple method. Further, the through hole can be an engaging portion that engages with the protrusion of the mold.

  According to a fifth aspect of the present invention, in the fabric laminate according to the fourth aspect, the through hole is an engagement through hole that also serves as the engagement portion.

  According to this structure, while being able to simplify a structure, the unnecessary shift | offset | difference and movement with respect to the shaping | molding die at the time of shaping | molding of a molded article can be suppressed reliably.

  According to a sixth aspect of the present invention, in the fabric laminate according to any one of the first to fifth aspects, the binding means is made of a material having a melting point lower than the temperature of the laminate when the molded product is molded by the mold. It is characterized by being configured.

  According to this configuration, since the bundling means melts when the molded product is molded, even if the bundling means remains in the molded product, it does not stand out, and the product properties are not greatly affected.

  As described above, according to the present invention, there is provided a fabric laminate prior to molding a molded product that has excellent handling properties such as carrying and has little wobbling and deviation during molding, with a simple configuration without pre-shaping. can do. Therefore, it is possible to avoid the labor and trouble associated with preliminary shaping. Further, the fabric does not require a thermoplastic resin or thermoplastic fiber, and does not require a melting step thereof.

1 is an overall perspective view showing a first embodiment of a fabric laminate of the present invention. It is the whole perspective view of the molded product which shape | molded the fabric laminated body of FIG. 1 with the shaping | molding die. It is sectional drawing of the state which has arrange | positioned the fabric laminated body of FIG. 1 in a shaping | molding die. It is sectional drawing of the state which shape | molded the fabric laminated body of FIG. 1 within the shaping | molding die. It is sectional drawing of the state which has arrange | positioned the fabric laminated body without a binding part in a shaping | molding die. It is sectional drawing of the state which shape | molded the fabric laminated body of FIG. 5 within the shaping | molding die. It is detailed explanatory drawing of the fabric laminated body of FIG. 1, (A) is a detailed perspective view, (B) is sectional drawing. It is detail explanatory drawing of the modification of the fabric laminated body of FIG. 1, (A) is a detailed perspective view, (B) is sectional drawing. It is detailed explanatory drawing which shows 2nd Embodiment of the fabric laminated body of this invention, (A) is a detailed perspective view, (B) is sectional drawing. It is detailed explanatory drawing which shows 3rd Embodiment of the fabric laminated body of this invention, (A) is a detailed perspective view, (B) is sectional drawing. It is sectional drawing which shows the usage example in the shaping | molding die of the fabric laminated body of FIG. It is sectional drawing which shows 4th Embodiment of the fabric laminated body of this invention. It is sectional drawing which shows the modification of the fabric laminated body of FIG. It is sectional drawing which shows 5th Embodiment of the fabric laminated body of this invention.

  In the following embodiments, an apparatus and a method for embodying the present invention are illustrated. However, the technical idea of the present invention does not specify the material, shape, arrangement, etc. of the component parts below. The technical idea of the present invention can be modified in various ways within the technical scope of the claims.

  Hereinafter, embodiments of the fabric laminate of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall perspective view showing a first embodiment of a fabric laminate 10 of the present invention, and FIG. 2 is an overall perspective view of a molded product obtained by molding the fabric laminate 10 of FIG. 1 with a molding die. The molded product of this embodiment refers to a molded product of the fabric laminate 10 including a fiber reinforced composite material. Since molding of a fiber-reinforced composite material using a molding die (not shown) is widely known, for example, as in the above-described RTM, details thereof will not be described here.

  In a molded product of a fiber reinforced composite material such as CFRP, for example, fibers of the fiber reinforced composite material are used as, for example, warp and weft, and these are woven like a woven fabric and used as the fabric 12. For example, about 2 to 20 pieces of the cloth 12 are laminated to form a cloth laminated body 10. The cloth laminated body 10 is placed in a mold, clamped with a mold, and a resin (matrix resin) is injected into the mold. . The injected resin is impregnated into the entire fabric laminate 10 and cured, and a molded product of the fiber reinforced composite material is formed. In this embodiment, it is assumed that the fabric laminate 10 is placed in a mold and molded products are formed without pre-shaping. In order to increase the resin impregnation efficiency, the inside of the mold may be decompressed. In addition, a technique has been developed that shortens the time required for molding a molded product by making a large number of resin injection points.

  For example, the fabric laminate 10 in FIG. 1 has a square shape from which corners of four corners are removed, and the fabric laminate 10 is molded with a molding die to obtain a substantially square tray-shaped molded product as shown in FIG. . This molded product is cut at the position of the two-dot chain line in FIG. 2, and only the cut inner part becomes the product, and the outer side is not used. In this embodiment, bundling portions 14 are provided at a plurality of positions in a portion not used as the product. As will be described in detail later, the binding portion 14 is configured by binding all the laminated fabrics 12 with individual binding means. Further, the bundling portion 14 is provided at a predetermined position set in advance in a plan view of the laminated fabric 12.

  3 is a cross-sectional view of the state in which the fabric laminate 10 of FIG. 1 is disposed in the molds 16 and 18, and FIG. 4 is a cross-section of the state in which the fabric laminate 10 of FIG. FIG. These drawings schematically show the state of the fabric laminate 10 in the molds 16 and 18, and are different from the actual details. For example, when the pressure inside the mold is reduced by RTM, the inside of the molds 16 and 18 in the mold-clamped state is closed, but here, the ends of the molds 16 and 18 are opened for easy understanding. ing. In the fabric laminate 10 of FIG. 1, the bundling portion 14 is provided at a specified position, so that unnecessary twisting and displacement of the respective fabrics 12 are suppressed even when the molds 16 and 18 are clamped.

  On the other hand, FIG. 5 is a cross-sectional view of a state in which the fabric laminate 10 (without pre-shaping) having no binding portion is disposed in the molds 16 and 18, and FIG. 6 shows the fabric laminate 10 of FIG. FIG. 3 is a cross-sectional view of a state of being molded in the molding dies 16 and 18. Even in the fabric laminate 10 that does not shift or shift before the molds 16 and 18 are clamped, the fabric 12 is unnecessarily moved or shifted due to mold clamping. In FIG. 4 described above, it is schematically shown that the bundling portion 14 can prevent the fabric 12 from being twisted or shifted during clamping, but in actual clamping, a portion other than the bundling portion 14 of the laminated fabric 12 is shown. There will be a gap. This is natural in the fabric laminate 10 that has not been pre-shaped, and the fabric laminate 10 can be formed along the molds 16 and 18 because the fabric 12 is displaced.

  Therefore, the binding portion 14 should be provided in a portion where the fabric 12 is not desired to be displaced at the time of molding the molded product. Therefore, the specified position where the binding portion 14 is provided is a portion where the fabric 12 is not desired to be displaced at the time of molding the molded product. It is desirable to do. In addition, as shown in FIG. 2, in the molded product including the fiber reinforced composite material, in order to maintain the strength in a uniform state or ensure a preset strength, the binding portion is formed in a portion that does not remain as a product. Therefore, it is desirable to provide a portion that does not remain in the product, that is, a portion other than the product region, as a specified position for forming the binding portion 14. In addition, the case where the binding part 14 is provided in the part which remains as a product, that is, the product region will be described later.

  FIG. 7 is a detailed explanatory view of the fabric laminate 10 of FIG. 1, (A) is a detailed perspective view thereof, and (B) is a sectional view thereof. In the bundling portion 14 shown in these drawings, a fibrous body or a cord body 20 is used as a bundling means. Examples of the fibrous body or cord body 20 include threads and strings made of natural fibers or synthetic fibers. In this example, the bundling means composed of such a fibrous body or striated body 20 sews the laminated fabrics 12 continuously from one end surface to the other end surface in a so-called parallel stitch, All the fabrics 12 laminated by the above are bound to form a binding portion 14. FIG. 8 is a detailed explanatory view of a modified example of the fabric laminate 10 of FIG. 1, (A) is a detailed perspective view thereof, and (B) is a sectional view thereof. Also in this example, the fibrous body or the striated body 20 is used as a binding means, and all the fabrics 12 stacked by a sewing machine generally called a sewing machine are stitched and bound to form a binding portion 14.

  FIG. 9 is a detailed explanatory view showing a second embodiment of the fabric laminate 10 of the present invention, in which (A) is a detailed perspective view thereof, and (B) is a sectional view thereof. The overall configuration of the fabric laminate 10 of this embodiment is the same as that shown in FIGS. 1 and 2, for example, and the action of the binding portion 14 provided in the fabric laminate 10 of this embodiment is, for example, as described above. 3 and 4 are the same as those shown in FIGS. The bundling portion 14 of this embodiment uses the fibrous body or the striated body 20 as a bundling means, and sews all the fabrics 12 that are laminated so as to bend the ends in the spreading direction of the fabric laminate 10. As a result, all the laminated fabrics 12 are bundled. Furthermore, in the bundling portion 14 of this embodiment, a ring is formed by a part of the fibrous body or the cord body 20 used as the bundling means, and this is used as the engaging portion 22. As shown by a two-dot chain line in the figure, the engaging portion 22 is engaged with a protrusion 22 provided on the lower mold 18 and, for example, if a molded product is molded in this state, Unnecessary displacement and movement of the engaging portion 22 and the binding portion 14 with respect to the mold 18 can be restricted. Moreover, this engaging part 22 can be utilized also at the time of conveyance etc. via a manipulator etc., for example.

  FIG. 10 is a detailed explanatory view showing a third embodiment of the fabric laminate 10 of the present invention, (A) is a detailed perspective view thereof, and (B) is a sectional view thereof. The overall configuration of the fabric laminate 10 of this embodiment is the same as that shown in FIGS. 1 and 2, for example, and the action of the binding portion 14 provided in the fabric laminate 10 of this embodiment is, for example, as described above. 3 and 4 are the same as those shown in FIGS. In the bundling portion 14 of this embodiment, a circular hole (through hole) 26 penetrating from one end surface to the other end surface of the laminated fabric 12 is formed, and the fibrous body or the cord body 20 is used as a bundling means. The circular holes 26 are stitched together so as to bend over the entire inner periphery of the circular hole 26, and all the fabrics 12 thus laminated are bound. That is, the stitched portion has a stitched structure in which the laminated fabrics 12 are continuous from one end surface to the other end surface in the stacking direction. Note that this sewing may be performed only on a part of the inner periphery of the circular hole (through hole) 26 instead of the entire inner periphery. Further, the circular hole (through hole) 26 can be formed using an existing tool such as a punch.

  FIG. 11 is a cross-sectional view showing an example of use of the fabric laminate 10 of FIG. 10 in a mold. The lower mold 18 shown in FIG. 11 is provided with elevating pins 28 called ejectors for delivering a molded product after molding. The elevating pins 28 are raised and lowered in the vertical direction in the figure by driving means such as a hydraulic cylinder (not shown). In this example, a guide pin (projection) 30 is disposed inside the elevating pin 28. The guide pin 30 is urged upward in the figure by a coil spring 32, and is configured such that the guide pin 30 descends against the urging force of the coil spring 32 when an upper mold (not shown) abuts. Yes. In this example of use, the fabric laminated body 10 is positioned by inserting the guide pin 30 into the circular hole 26 in which the inner periphery is stitched.

  That is, the circular hole (through hole) 26 of the fabric laminate 10 of FIG. 10 in this use example is one in which the guide pin (protrusion) 30 provided in the mold 18 is inserted and engaged, Functions as an engagement through hole. If the molded product is molded in this state, unnecessary displacement and movement of the circular hole 26 and the binding portion 14 with respect to the molding die 18 can be restricted. Incidentally, after molding the molded product, after the upper mold is raised, the elevating pins 28 are raised and the molded product is discharged from the lower mold 18. Further, the circular hole 26 can be used during conveyance through a manipulator or the like as in the second embodiment described above.

  FIG. 12 is a cross-sectional view showing a fourth embodiment of the fabric laminate 10 of the present invention. The overall configuration of the fabric laminate 10 of this embodiment is the same as that shown in FIGS. 1 and 2, for example, and the action of the binding portion 14 provided in the fabric laminate 10 of this embodiment is, for example, as described above. 3 and 4 are the same as those shown in FIGS. In the bundling portion 14 of this embodiment, a predetermined-shaped bundling tool 34 is used as the bundling means. The binding tool 34 of this embodiment has a bifurcated staple shape, and passes through from one end surface to the other end surface in the stacking direction of the stacked fabrics 12, and then binds all the stacked fabrics 12 by bending the tip portion. The bundling portion 14 is used. As such a staple-shaped binding tool 34, for example, there is a metal one used for a stapler. Moreover, although it differs in shape, there are also those made of resin and those made of paper.

  FIG. 13 is a cross-sectional view showing a modification of the fabric laminate 10 of FIG. In this modification, an annular portion 36 is formed integrally with a bifurcated staple-shaped connecting portion of the tying member 34 shown in FIG. Accordingly, the annular portion 36 can be used at the time of conveyance through a manipulator or the like, for example.

  FIG. 14 is a cross-sectional view showing a fifth embodiment of the fabric laminate 10 of the present invention. The overall configuration of the fabric laminate 10 of this embodiment is the same as that shown in FIGS. 1 and 2, for example, and the action of the binding portion 14 provided in the fabric laminate 10 of this embodiment is, for example, as described above. 3 and 4 are the same as those shown in FIGS. In the binding unit 14 of this embodiment, for example, an existing binding band 38 is used as a binding means. The binding band 38 is generally made of a resin having flexibility, and as is well known, a fixing portion 40 is formed at one end and a ratchet is formed on one surface of the band portion 42.

  Therefore, in the binding band 38, when the band portion 42 is inserted into the insertion hole of the fixing portion 40, the locking claw provided in the insertion hole is locked to the ratchet and the binding length of the band portion 42 is fixed. On the other hand, a circular hole 44 penetrating from one end surface to the other end surface in the stacking direction of the laminated fabrics 12 is formed as a through hole at the specified position in the spreading direction of the fabric laminate 10 as in FIG. 10 described above. The Further, in this embodiment, an insertion hole 46 through which the band portion 42 of the binding band 38 can be inserted in the vicinity of the circular hole 44 penetrates from one end surface to the other end surface of the laminated fabric 12 in the same manner. Is formed. The circular hole 44 and the insertion hole 46 can be formed using an existing tool such as a punch.

  In this embodiment, for example, as shown in FIG. 14A, the band portion 42 of the binding band 38 is inserted from one end surface side of the laminated fabric 12 into the insertion hole 46 and inserted to the other end surface side. Next, as shown in FIG. 14B, the band portion 42 of the binding band 38 protruding from the insertion hole 46 is folded back and inserted into the circular hole 44 from the other end surface side of the laminated fabric 12, and one end surface Insert to the side. And as shown in FIG.14 (C), the band part 42 is tightened by inserting the front-end | tip part of the band part 42 of the binding band 38 in the insertion hole of the fixing | fixed part 40, and pulling the front-end | tip part fully. As a result, all the laminated fabrics 12 are bound to form a binding portion 14.

  The bundling portion 14 of each embodiment described above is unnecessary as a molded product of the fiber reinforced composite material including the engaging portion, the through hole, and the engaging through hole. Therefore, as described above, it is desirable to set the specified position for forming the binding portion 14 in a portion that does not remain as a product, that is, a portion other than the product region. However, on the other hand, for example, when a portion of the fabric 12 that is not desired to shift is within the product region, the portion may need to be set at a specified position for forming the binding portion 14. In such a case, as the bundling means, a material having a melting point lower than the temperature of the laminated body at the time of molding a molded product by a mold may be used, and the bundling means may be configured with the material.

  Since the temperature of the laminated body at the time of molding a molded product becomes a high temperature of 100 ° C. or higher, examples of materials having a melting point lower than the temperature of the laminated body at the time of molding this molded product include polyethylene (melting point: about 70 to 140 ° C.) and polypropylene (melting point). Resin material such as 168 ° C.). If the bundling means made of these materials is used, the bundling means will melt at the time of molding a molded product. The molten resin of the binding means remains in the molded product, but most of it is absorbed into the fabric laminate 10 and is not noticeable. Moreover, since the volume ratio with respect to resin (matrix resin) which is impregnated in the fabric laminate 10 and remains in the molded product is overwhelmingly small, the resin of the binding means that remains is not particularly problematic as product properties.

  As described above, in the fabric laminate 10 according to the above-described embodiment, the fabric laminate 10 in which the fabric 12 including the fiber reinforced composite material is laminated is placed in the molds 16 and 18 in advance, and the resin is placed in the molds 16 and 18. In the case of obtaining a molded product by injecting, a binding portion 14 in which all the stacked fabrics 12 are bound by individual binding means is provided at a specified position in plan view of the stacked fabrics 12. At this time, by setting a portion of the fabric 12 that is not desired to be displaced at the time of molding the molded product at a specified position, the fabric laminate 10 before molding the molded product with less unnecessary twisting and misalignment at the time of molding without pre-shaped. Can be provided. In addition, since the fabric 12 does not fall apart when being carried, the handleability is excellent. Moreover, since the thermoplastic resin and thermoplastic fiber are not essential for the fabric 12, and the melting process thereof is not necessary, the degree of freedom of the fabric material is increased, and problems associated with the melting process can be avoided.

  In addition, by selecting a binding means from the fibrous body or cord body 20, the binding band 38, and the binding tool 34, it is possible to bind the fabric 12 laminated with familiar members, and suppress an increase in cost. be able to.

  Further, by providing the binding portion 14 with the engaging portion 22 that engages with the protrusion provided on the molding dies 16 and 18, it is possible to suppress unnecessary displacement and movement with respect to the molding dies 16 and 18 during molding of the molded product. it can.

  In addition, a part of the inner periphery of a circular hole (through hole) 26 penetrating from one end face to the other end face of the laminated fabric 12 in the lamination direction or the whole circumference of the fabric 12 laminated in the lamination direction from one end face to the other. Sew continuously to the end face. Thus, the bundling portion 14 can be configured by a simple method, and the circular holes (through holes) 26 are engaged with the projections of the molding dies 16 and 18 so that the molding dies 16 and 18 are molded. Unnecessary displacement and movement can also be suppressed.

  Further, since the circular hole (through hole) 26 is an engagement through hole that also serves as an engagement portion, the configuration can be simplified and unnecessary displacement and movement with respect to the molding dies 16 and 18 at the time of molding a molded product. Can be reliably suppressed.

  Further, by forming the binding means with a material having a melting point lower than the laminate temperature at the time of molding the molded product by the molding dies 16, 18, even if the binding means melts at the time of molding the molded product and the binding means remains in the molded product. It does not stand out and does not have a significant effect on product properties.

  In the above-described embodiment, it is desirable to provide the binding portion 14 in a portion that does not remain as a product. Therefore, it is desirable to set a portion that does not remain in the product, that is, a portion other than the product region as a specified position for forming the binding portion 14. However, the bundling portion 14 may be provided in the product area.

  Moreover, the form of the binding part 14 mentioned above is an example of this invention to the last, and is not limited to these. Moreover, the form of the fabric laminated body 10, for example, a planar shape and the number of laminated layers, are examples of the present invention, and are not limited to these.

  It goes without saying that the present invention includes various embodiments not described above. Therefore, the technical scope of the present invention is defined only by the invention-specifying matters described in the scope of claims which is appropriate from the above description.

DESCRIPTION OF SYMBOLS 10 Cloth laminated body 12 Cloth 14 Bundling part 16,18 Forming die 20 Fibrous body or rope body (joining means)
22 engaging portion 24 protrusion 26 circular hole (through hole, engaging through hole)
30 Guide pin (protrusion)
34 Cable tie 38 Cable tie

Claims (6)

In injecting a resin into a mold and obtaining a molded product, in a fabric laminate formed by laminating a fabric having a fiber-reinforced composite material, which is arranged in advance in the mold,
A fabric laminate, which is provided at a predetermined position in a plan view of the laminated fabric and has a binding portion in which all the stacked fabrics are bound by individual binding means.   2. The fabric laminate according to claim 1, wherein the binding means is selected from a fibrous body or a cord body, a binding band, and a binding tool.   The fabric laminate according to claim 1 or 2, wherein the binding portion has an engaging portion that engages with a protrusion provided on the mold. The bundling portion is
A through hole penetrating from one end surface to the other end surface in the stacking direction of the stacked fabrics;
4. The sewing structure according to claim 1, further comprising a stitching structure that is continuous from one end surface to the other end surface in the stacking direction of the stacked fabrics on a part or the entire periphery of the inner hole. The fabric laminate according to Item.   The fabric laminate according to claim 4, wherein the through hole is an engaging through hole that also serves as the engaging portion.   The fabric laminate according to any one of claims 1 to 5, wherein the binding means is made of a material having a melting point lower than a laminate temperature at the time of molding a molded product by the mold.

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