JP6684155B2 - Fabric laminate - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fabric laminate, and particularly to a fabric laminate in which fabrics having reinforcing fibers are laminated.

BACKGROUND ART Fabrics are generally known in which reinforcing fibers for forming a fiber-reinforced composite material such as CFRP (Carbon Fiber Reinforced Plastic) are used as warp yarns and weft yarns to form a woven fabric. A plurality of such fabrics are laminated to form a fabric laminate, and the fabric laminate is placed in a molding die to obtain a molded article. 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 the molding die, and the inside of the die is decompressed in some cases, and the resin is injected into the die. The resin is impregnated into the entire fabric laminate and cured, and the shape of the molded product after molding is retained. This impregnated resin is also called a matrix resin.

  The fabric laminate before molding of the molded product is liable to be separated, for example, when carried, or to be distorted or misaligned during molding, simply by laminating the fabric. Therefore, preliminary shaping called a preform is performed on the fabric laminate before molding the molded product. There are various methods for this preliminary shaping, but most commonly, one piece of cloth is placed on the mold for preliminary shaping, sprayed with preform powder, and the cloth is layered on it. Repeat spraying preform powder by hand. The fabric laminate thus obtained is clamped with a preliminary shaping mold to carry out preliminary shaping. At the time of molding a molded product with a molding die, this preshaped fabric laminate is used.

  However, the manual pre-molding work is troublesome 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 a thermoplastic resin or a thermoplastic fiber, and by melting and solidifying a part of the thermoplastic resin or the thermoplastic fiber, a part of the reinforcing fiber of the fabric laminate is formed. To fix. As a result, it is said that it is possible to provide a fabric laminated body which is excellent in handleability such as portability and has less warpage or deviation during molding before molding a molded product.

JP-A-5-261849

  However, it is difficult to control the melting temperature of the thermoplastic resin or the thermoplastic fiber in the fabric laminate described in Patent Document 1 described above. Further, in order to uniformly melt the thermoplastic resin or the thermoplastic fiber in all the fabrics of the laminated plural fabrics by a simple method, as described in Patent Document 1, in the outer peripheral portion of the fabric laminate, The fixed part of the reinforcing fiber is regulated. In the case of a fabric laminate that is used for molding a molded article without preliminary shaping, all the fabrics should be fixed at the portion where the laminated fabric is not desired to be displaced during molding of the molded article, which is not always necessary. It is not the outer periphery. Further, in order to form the fixing portion of the reinforcing fiber 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 a thermoplastic fiber is essential in the cloth. That is, there is room for improvement in the process itself of melting the thermoplastic resin or the thermoplastic fibers in the fabric laminate.

  The present invention has been made in view of the above problems, and an object thereof is that a complicated step such as a melting step is not required, and preliminary shaping is not required, and handleability such as carrying is excellent, and at the time of molding. It is an object of the present invention to provide a fabric laminate before molding of a molded product with less unnecessary warpage and displacement.

Order to achieve the above object, in obtaining a mold in the resin injected into molded article, said in advance arranged in the mold in, by stacking the fabric with the reinforcing fibers to form a fiber-reinforced composite material In the cloth laminated body, the laminated cloth is provided at a specified position in a plan view of the laminated cloth, and all the laminated cloths have a binding portion bound by individual binding means.

  According to this configuration, when molding the molded product, the portion of the laminated fabric which is not desired to be displaced is set to the prescribed position in the plan view of the laminated fabric, and at this prescribed position, all of the layers laminated by the individual binding means are laminated. The fabric is bound to form a binding portion. Thereby, it is possible to provide a fabric laminate before molding, which is excellent in handleability such as carrying without preliminarily shaping and has less unnecessary warpage and deviation during molding. In that case, the fabric does not require a thermoplastic resin or a thermoplastic fiber, and a melting process thereof is not required.

Further , the binding means is selected from a fibrous body or a cord body, a binding band, and a binding tool.

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

Further , the binding portion has an engaging portion that engages with a protrusion provided on the molding die.

  According to this configuration, by engaging the engaging portion provided on the bundling portion with the protrusion of the molding die, it is possible to suppress unnecessary displacement and movement of the molding die relative to the molding die.

Further , the bundling portion is a through-hole penetrating from one end face to the other end face in the laminating direction of the laminated fabrics, and a laminating direction of the laminated fabrics at a part or the entire circumference of the inner periphery of the through-holes. It has a stitching structure which is continuous from one end face to the other end face.

  According to this structure, the fibrous body or the cord body and the binding band are used as the binding means, and a part or the entire circumference of the inner periphery of the through hole is sewn to form a stitched structure. With this, the binding portion can be configured by a simple method. Further, the through hole may be an engaging portion that engages with the protrusion of the mold.

Further , the through hole is an engaging through hole which doubles as the engaging portion.

  According to this configuration, the configuration can be simplified, and unnecessary displacement and movement with respect to the molding die during molding of the molded product can be reliably suppressed.

Further , the bundling means is composed of a material having a melting point lower than the temperature of the laminated body at the time of molding the molded product by the molding die.

  According to this configuration, the binding means is melted during molding of the molded product, so that even if the binding means remains on the molded product, it is not conspicuous and the product properties are not significantly affected.

  As described above, according to the present invention, there is provided a fabric laminate before molding, which is excellent in handleability such as portability and has little twist or deviation during molding, with a simple structure without preliminary shaping. can do. Therefore, it is possible to avoid the trouble and trouble associated with the preliminary shaping. Further, the fabric does not require a thermoplastic resin or a thermoplastic fiber, and a melting process thereof is not required.

1 is an overall perspective view showing a first embodiment of a fabric laminate of the present invention. FIG. 2 is an overall perspective view of a molded product obtained by molding the fabric laminate of FIG. 1 with a molding die. It is sectional drawing of the state which has arrange | positioned the fabric laminated body of FIG. 1 in the shaping | molding die. It is sectional drawing of the state which molded the fabric laminated body of FIG. 1 in the shaping | molding die. It is sectional drawing of the state which has arrange | positioned the fabric laminated body without a binding part in the shaping | molding die. FIG. 6 is a cross-sectional view of a state in which the fabric laminate of FIG. 5 is molded in a molding die. It is a detailed explanatory view of the cloth laminated body of Drawing 1, (A) is a detailed perspective view, and (B) is a sectional view. It is detailed explanatory drawing of the modification of the cloth 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. FIG. 11 is a cross-sectional view showing an example of use of the fabric laminate of FIG. 10 in a molding die. 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.

  The following embodiments exemplify devices and methods for embodying the present invention. However, the technical idea of the present invention does not specify the material, shape, arrangement, etc. of the constituent parts below. The technical idea of the present invention can be modified variously 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 article of this embodiment refers to a molded article of the fabric laminate 10 including the reinforcing fibers for forming the fiber-reinforced composite material. Molding of a molded article of a fiber-reinforced composite material using a molding die (not shown) is widely known, such as the above-mentioned RTM, and therefore its details will not be described here.

For a molded article of a fiber-reinforced composite material such as CFRP, for example, reinforcing fibers of the fiber-reinforced composite material are used for, for example, warp threads and weft threads, and these are woven as a woven fabric and used as a fabric 12. For example, about 2 to 20 sheets of the cloth 12 are laminated to form a cloth laminate 10, the cloth laminate 10 is placed in a molding die, the molding die is clamped, and a resin (matrix resin) is injected into the die. . The injected resin is impregnated into the entire fabric laminate 10 and cured to form a fiber-reinforced composite material molded product. In this embodiment, it is premised that the fabric laminated body 10 is placed in a molding die to perform molding of a molded product without performing preliminary shaping. The inside of the mold may be depressurized in order to improve the impregnation efficiency of the resin. Also, a technique has been developed in which the time required for molding a molded product is shortened by increasing the number of resin injection points.

  For example, the fabric laminated body 10 of FIG. 1 is a rectangular one with four corners removed, and the fabric laminated body 10 is molded with a molding die to obtain a substantially rectangular tray-shaped molded product as shown in FIG. . This molded product is cut at the position indicated by the alternate long and two short dashes line in FIG. 2, and only the cut inner part becomes the product, and the outer part is not used. In this embodiment, the binding portions 14 are provided at a plurality of positions of the portion not used as this product. As will be described later in detail, the binding portion 14 is configured by binding all the laminated fabrics 12 by individual binding means. Further, the binding portion 14 is provided at a preset position in plan view of the laminated fabrics 12.

  3 is a cross-sectional view of the fabric laminate 10 of FIG. 1 arranged in the molding dies 16 and 18, and FIG. 4 is a cross-section of the fabric laminate 10 of FIG. 1 molded in the molding dies 16 and 18. It is a figure. These drawings schematically show the state of the fabric laminated body 10 in the molding dies 16 and 18, and differ from the actual details. Further, for example, when decompressing the inside of the mold by RTM, the inside of the molds 16 and 18 in the mold clamped state is closed, but here, for the sake of clarity, the ends inside the molds 16 and 18 are opened. ing. In the fabric laminated body 10 of FIG. 1, since the binding portion 14 is provided at the specified position, even when the molds 16 and 18 are clamped, unnecessary warpage and displacement of the respective fabrics 12 are suppressed.

  On the other hand, FIG. 5 is a cross-sectional view showing a state in which the fabric laminate 10 having no binding portion (without preliminary shaping) is placed in the molding dies 16 and 18, and FIG. 6 shows the fabric laminate 10 of FIG. It is sectional drawing of the state molded in the shaping | molding die 16,18. Even in the fabric laminate 10 which is not dislocated or shifted before the molds 16 and 18 are clamped, the fabric 12 is unnecessarily deflected or displaced by the mold clamping. In FIG. 4 described above, it is schematically shown that the binding portion 14 can suppress the twisting and displacement of the fabric 12 at the time of mold clamping, but in actual mold clamping, the portion of the laminated fabric 12 other than the binding portion 14 Gap occurs. This is a matter of course in the fabric laminated body 10 which is not pre-shaped, and the fabric laminated body 10 can be molded along the molding dies 16 and 18 because the fabric 12 is displaced.

  For these reasons, the binding portion 14 should be provided in a portion where the fabric 12 is not desired to be displaced when the molded product is molded, and therefore, the specified position where the binding portion 14 is provided is a portion where the fabric 12 is not desired to be displaced when the molded product is molded. It is desirable to do. In addition, as shown in FIG. 2, in a molded product containing a fiber-reinforced composite material, in order to maintain the strength in a uniform state or to secure a preset strength, a binding portion is formed in a portion that does not remain as a product. It is desirable to provide 14 and, 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 the prescribed position for forming the binding portion 14. Note that the case where the binding portion 14 is provided in the portion that remains as a product, that is, in the product area will be described later.

  FIG. 7 is a detailed explanatory view of the fabric laminated body 10 of FIG. 1, (A) is a detailed perspective view thereof, and (B) is a sectional view thereof. In the binding portion 14 shown in these figures, a fibrous body or a cord 20 is used as a binding means. Examples of these fibrous bodies or cords 20 include threads or strings made of natural fibers or synthetic fibers. In this example, with the binding means composed of such fibrous bodies or cords 20, the fabrics 12 that are stacked are sewn continuously from one end face to the other end face in the stacking direction, so-called side-by-side stitching, All the fabrics 12 laminated by the above are bound to form a binding portion 14. 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 cord body 20 is used as the binding means, and all the fabrics 12 stacked by a sewing machine generally called a sewing machine are stitched and bound, and this is used as the binding portion 14.

  9A and 9B are detailed explanatory views showing a second embodiment of the fabric laminated body 10 of the present invention, FIG. 9A is a detailed perspective view thereof, and FIG. 9B is a sectional view thereof. The overall structure of the fabric laminate 10 of this embodiment is similar to 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. It is similar to that shown in FIG. 3 and FIG. The binding portion 14 of this embodiment uses the fibrous body or the cord body 20 as a binding means to sew up all the fabrics 12 that are laminated by bending the ends of the fabric laminated body 10 in the spreading direction, As a result, all the laminated fabrics 12 are bound together. Further, in the binding portion 14 of this embodiment, a ring is formed by a part of the fibrous body or the cord body 20 used as the binding means, and this is used as the engaging portion 22. As shown by the chain double-dashed line in the figure, the engaging portion 22 is for engaging with the projection 22 provided on the lower molding die 18 and, for example, if molding is performed in this state, Unwanted displacement and movement of the engaging portion 22 and the binding portion 14 with respect to the molding die 18 can be restricted. Further, the engaging portion 22 can also be used at the time of conveyance, for example, via a manipulator or the like.

  10A and 10B are detailed explanatory views showing a third embodiment of the fabric laminated body 10 of the present invention, FIG. 10A is a detailed perspective view thereof, and FIG. 10B is a sectional view thereof. The overall structure of the fabric laminate 10 of this embodiment is similar to 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. It is similar to that shown in FIG. 3 and FIG. In the binding portion 14 of this embodiment, a circular hole (through hole) 26 penetrating from one end face to the other end face of the stacked fabrics 12 in the stacking direction is formed, and the fibrous body or the cord 20 is used as a binding means. The circular holes 26 are sewn together by bending the entire inner circumference of the circular holes 26, thereby binding all the laminated fabrics 12 together. In other words, this stitching portion has a stitching structure in which one end face of the stacked fabric 12 in the stacking direction is continuous to the other end face. It should be noted that this stitching may be performed not only on the entire inner circumference of the circular hole (through hole) 26 but only on a part thereof. 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 molding die. The lower mold 18 shown in FIG. 11 is provided with an elevating pin 28 called an ejector for paying out a molded product after molding. The lift pins 28 are lifted and lowered in the vertical direction in the drawing by a driving means such as a hydraulic cylinder (not shown). In this example, guide pins (projections) 30 are arranged inside the lifting pins 28. The guide pin 30 is biased upward in the drawing by a coil spring 32, and when the upper mold (not shown) comes into contact with the guide pin 30, the guide pin 30 is lowered against the biasing force of the coil spring 32. There is. In this example of use, the guide pin 30 is inserted into the circular hole 26 whose inner periphery is sewn together so that the fabric laminated body 10 is positioned.

  That is, the circular hole (through hole) 26 of the fabric laminate 10 of FIG. 10 in this usage example is one into which the guide pin (projection) 30 provided in the molding die 18 is inserted and engages, and the present invention is not limited to this. 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. By the way, after molding the molded product, after the upper mold is lifted, the lifting pins 28 are lifted and the molded product is paid out from the lower mold 18. Further, this circular hole 26 can also be used at the time of transportation 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 structure of the fabric laminate 10 of this embodiment is similar to 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. It is similar to that shown in FIG. 3 and FIG. In the binding unit 14 of this embodiment, a binding tool 34 having a preset prescribed shape is used as a binding means. The binding tool 34 of this embodiment has a bifurcated staple shape and, after penetrating from one end face to the other end face of the stacked fabrics 12 in the stacking direction, bends the tip end to bind all the stacked fabrics 12 together. However, it is used as the binding portion 14. As such a staple-shaped binding tool 34, there is, for example, a metal binding tool used in a stapler. Also, although the shapes are different, there are resin and paper ones.

  FIG. 13 is a cross-sectional view showing a modified example of the fabric laminated body 10 of FIG. In this modification, an annular portion 36 is integrally formed with a bifurcated staple-shaped connecting portion of the binding tool 34 shown in FIG. Therefore, the annular portion 36 can be used, for example, during transportation via a manipulator or the like.

  FIG. 14 is a sectional view showing a fifth embodiment of the fabric laminate 10 of the present invention. The overall structure of the fabric laminate 10 of this embodiment is similar to 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. It is similar to that shown in FIG. 3 and FIG. 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 flexible resin, and as is well known, the fixing portion 40 is formed at one end and the 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 locks with 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 face to the other end face of the laminated fabric 12 in the laminating direction is formed as a through hole at a specified position in the spreading direction of the fabric laminated body 10 as in the case of FIG. 10 described above. It Further, in this embodiment, an insertion hole 46 capable of inserting the band portion 42 of the binding band 38 is formed in the vicinity of the circular hole 44 so as to penetrate from one end face to the other end face of the laminated fabric 12 in the laminating direction. Is formed. The circular hole 44 and the insertion hole 46 can be formed by using a tool such as an existing punch.

  In this embodiment, for example, as shown in FIG. 14A, the band portion 42 of the binding band 38 is inserted into the insertion hole 46 from one end surface side of the laminated fabric 12 and inserted to the other end surface side. Next, as shown in FIG. 14 (B), the band portion 42 of the binding band 38 projecting 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 to form one end surface. Insert to the side. Then, as shown in FIG. 14C, the tip end of the band portion 42 of the binding band 38 is inserted into the insertion hole of the fixing portion 40, and the tip portion is sufficiently pulled to tighten the band portion 42. As a result, all the laminated fabrics 12 are bound to form the binding portion 14.

  The binding portion 14 of each of the above-described embodiments, including the engaging portion, the through hole, and the engaging through hole, is not necessary as a molded article of the fiber-reinforced composite material. Therefore, as described above, it is desirable that the prescribed position for forming the binding portion 14 is set to 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 there is a portion of the fabric 12 that is not desired to be displaced in the product region, that portion may have to be set to a prescribed position for forming the binding portion 14. In such a case, as the binding means, it is possible to use a material having a melting point lower than the temperature of the laminated body at the time of molding the molded product by the molding die, and to configure the binding means with the material.

  Since the temperature of the laminated body at the time of molding the molded product is 100 ° C. or higher, examples of the material having a melting point lower than the temperature of the laminated body at the time of molding the molded product include, for example, polyethylene (melting point: about 70 to 140 ° C.) and polypropylene (melting point). 168 ° C.) and the like. If the binding means made of these materials is used, the binding means will be melted at the time of molding the molded product. The molten resin of the binding means remains in the molded product, but most of it is absorbed in the fabric laminate 10 and is inconspicuous. Further, the remaining resin of the binding means has an overwhelmingly small volume ratio with respect to the resin (matrix resin) remaining in the molded product by being impregnated into the fabric laminate 10, so that there is no particular problem in terms of product properties.

As described above, in the fabric laminate 10 of the above-described embodiment, the fabric laminate 10 in which the fabric 12 including the reinforcing fiber is laminated is previously arranged in the molding dies 16 and 18, and the resin is injected into the molding dies 16 and 18. In the case of obtaining a molded product by the above, a binding portion 14 in which all the stacked fabrics 12 are bound by individual binding means is provided at a prescribed position in a plan view of the stacked fabrics 12. At that time, by setting a portion of the fabric 12 which is not desired to be displaced at the time of molding the molded product to a prescribed position, unnecessary pre-shape deformation and less unnecessary warpage or misalignment at the time of molding the fabric laminated body 10 before molding Can be provided. Further, since the fabric 12 does not fall apart when it is carried, it is easy to handle. Further, since the cloth 12 does not require the thermoplastic resin or the thermoplastic fiber and does not require the melting step thereof, the degree of freedom of the cloth material is increased and the problems associated with the melting step can be avoided.

  Further, by selecting a binding means from the fibrous body or the cord body 20, the binding band 38, and the binding tool 34, it is possible to bind the fabric 12 laminated by 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 protrusions provided on the molding dies 16 and 18, it is possible to suppress unnecessary displacement and movement of the molding dies 16 and 18 during molding of the molded product. it can.

  In addition, from one end face of the laminated fabric 12 to the other end face of the circular direction (through hole) 26 that penetrates from one end face to the other end face of the laminated fabric 12 Continuously sew up to the end face of. As a result, the bundling portion 14 can be configured by a simple method, and the circular holes (through holes) 26 are engaged with the protrusions of the molding dies 16 and 18 so that the molding dies 16 and 18 can be molded. It is also possible to suppress unnecessary displacement and movement.

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

  Further, by forming the binding means with a material having a melting point lower than the temperature of the laminated body at the time of molding the molded product by the molding dies 16 and 18, the binding means is melted at the time of molding the molded product and the binding means remains in the molded product. It is inconspicuous and does not significantly affect 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, and therefore it is desirable that a portion that does not remain in the product, that is, a portion other than the product region, be a defined position for forming the binding portion 14. However, the binding portion 14 may be provided in the product area.

  The form of the binding unit 14 described above is merely an example of the present invention, and the present invention is not limited to this. Further, the form of the fabric laminated body 10, such as the planar shape and the number of laminated layers, is also an example of the present invention and is not limited to these.

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

10 Cloth Laminated Body 12 Cloth 14 Bundling Section 16, 18 Mold 20 Fibrous Body or Strand (Coupling Means)
22 Engaging part 24 Protrusion 26 Circular hole (through hole, engaging through hole)
30 Guide pin (projection)
34 tying tool 38 tying band

Claims (5)

In order to obtain a molded article by injecting a resin into a molding die , a fabric laminate which is arranged in advance in the molding die and is laminated with fabrics having reinforcing fibers for forming a fiber-reinforced composite material,
Provided in the specified location in the plan view of the laminated fabric, all fabric the stacked can have a binding portion which are bound by separate binding means,
Fabric laminate wherein the binding unit, characterized in that to have the engaging portion which engages with projections provided on the mold. In order to obtain a molded article by injecting a resin into a molding die , a fabric laminate which is arranged in advance in the molding die and is laminated with fabrics having reinforcing fibers for forming a fiber-reinforced composite material,
Provided in the specified location in the plan view of the laminated fabric, all fabric the stacked can have a binding portion which are bound by separate binding means,
It said bundling means, forming bundles band, and fabric帛積layer body you being selected from the tie. The binding portion is
A through hole that penetrates from one end face to the other end face in the stacking direction of the stacked fabrics,
The cloth according to claim 1 or 2 , further comprising: a stitching structure in which a part or the whole circumference of the through hole is continuous from one end surface to the other end surface of the stacked cloth in the stacking direction. Laminate. The fabric laminate according to claim 3 , wherein the through hole is an engaging through hole that also serves as an engaging portion that engages with a protrusion provided on the mold . It said bundling means, fabric laminate according to any one of claims 1 to 4, characterized in that it is composed of a material of the lower laminate temperature during molded article molding melting point by the mold.

Images