JP2004316413A - Grating of frp, and method for molding the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grating of FRP suitable to be used as a louver, and a method for manufacturing the same. <P>SOLUTION: On a plane, linear vertical members and linear lateral members, respectively comprising fiber-reinforced synthetic resin, cross each other to form this grating. The linear vertical members and the linear lateral members respectively have side surfaces extended from a flat surface upward. At least one side surface of the linear vertical member or lateral member is inclined to a vertical direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lattice-shaped body made of fiber-reinforced synthetic resin and a method for producing the same.

  Fiber reinforced synthetic resin (FRP) is excellent in corrosion resistance, lightweight and strong, and excellent in flexibility. For this reason, FRP grids (gratings) made into a grid by crossing FRP linear members with each other are embedded in the ground or concrete structures for the purpose of reinforcement, etc. Is used in many fields.

Due to its excellent characteristics, FRP lattices are also used as louvers attached to openings such as windows provided on the walls and roofs of buildings. Such a louver is required to have the following characteristics.
・ Excellent ventilation.
・ Excellent daylighting and does not cause blockage inside the building.
-It has sufficient strength, cannot be easily destroyed, and prevents entry from the outside.
・ The inside cannot be seen from the outside (blindfold effect).

  As such a louver, an aluminum or a metal outer frame made of aluminum or a resin plate (blindfold plate) such as an acrylic resin or a polycarbonate resin is inclined and widely used. A louver using a grid-like body made of FRP is superior in strength to these aluminum or resin louvers.

However, the grid structure made of FRP is inferior in the blinding effect as compared with a louver made of aluminum or the like in which the blindfold plate is inclined and attached to the outer frame because the lattice is upright. This problem can be solved to some extent by narrowing the grating interval, but if the grating interval is narrowed, the lighting performance deteriorates.
In addition, in the case of aluminum or resin louvers with the blindfold plate mounted at an angle, the interior is not visible from the outside and the exterior is visible from the inside. When the lattice interval is narrowed with a louver using a lattice-like body, there is a problem that the outside cannot be seen from the inside, and a feeling of blockage is generated inside the louver.

  In order to solve the above problems, an object of the present invention is to provide an FRP lattice-like body suitable for use as a louver and a method for manufacturing the same.

In order to solve the above problems, the present invention has a lattice shape in which a linear vertical member made of a fiber-reinforced synthetic resin and a linear horizontal member intersect each other on a plane,
The linear vertical member and the linear horizontal member each have a side surface extending upward from the plane,
The side surface of at least one of the linear longitudinal member or the linear lateral member provides a lattice-shaped body made of fiber-reinforced synthetic resin that is inclined with respect to the vertical direction.

In the present invention, a mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction is filled with a curable resin,
The continuous fibers are extended in the arrangement direction of the pieces, and the continuous fibers are folded back in a U-shape with the pieces located at the ends of the mold and extended in the opposite direction, thereby repeating the continuous fibers. Arranging in a lattice shape on the mold, impregnating the continuous fiber with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. A method for producing a lattice-shaped body made of the fiber-reinforced synthetic resin of the invention is provided.

In the present invention, after filling a mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical and / or horizontal direction with a curable resin,
The continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces, and the continuous fiber is folded back in a U-shape with the pieces located at the ends of the mold and is extended in the opposite direction. By arranging the continuous fibers in a lattice shape on the mold,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. A method for producing a lattice-shaped body made of the fiber-reinforced synthetic resin of the invention is provided.

Further, the present invention provides a mold in which two or more pieces are formed on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction, and continuous fibers are extended in the arrangement direction of the pieces, thereby By repeating the continuous fiber folded in a U-shape and extending in the opposite direction with a piece located at the end of the, the continuous fibers are arranged in a lattice shape,
Impregnating the continuous fiber arranged in the lattice shape with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. A method for producing a lattice-shaped body made of the fiber-reinforced synthetic resin of the invention is provided.

In addition, the present invention, after impregnating the continuous fiber with a curable resin,
A continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces in a mold formed so that two or more pieces are arranged in the vertical direction and / or the horizontal direction on the bottom plate, The continuous fibers are arranged in a lattice shape by repeatedly folding the continuous fibers in a U-shape with a piece located at the end of the mold and extending in the opposite direction,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. A method for producing a lattice-shaped body made of the fiber-reinforced synthetic resin of the invention is provided.

In the present invention, a mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction is filled with a curable resin,
The continuous fibers are extended in the arrangement direction of the pieces, and the continuous fibers are folded back in a U-shape with the pieces located at the ends of the mold and extended in the opposite direction, thereby repeating the continuous fibers. Arranging in a lattice shape on the mold, impregnating the continuous fiber with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, the outer side of the piece located at the end of the mold in the direction perpendicular to the inclination direction of the side surface of the piece, and when viewed from the direction perpendicular to the inclination direction of the side surface of the piece. A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined,
The guide pin is inclined in a direction perpendicular to the inclination direction of the side surface of the piece with respect to the bottom plate so as to be separated from the side surface of the piece whose upper portion is inclined,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle between the side surface of the piece and the bottom plate becomes an obtuse angle, the piece located at the end of the mold In addition, the present invention provides a method for producing a fiber-reinforced synthetic resin lattice-like body according to the present invention, wherein the continuous fibers are folded back with the guide pins.

In the present invention, after filling a mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical and / or horizontal direction with a curable resin,
The continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces, and the continuous fiber is folded back in a U-shape with the pieces located at the ends of the mold and is extended in the opposite direction. By arranging the continuous fibers in a lattice shape on the mold,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, when viewed from the outside of the piece located at the end of the mold on the side perpendicular to the inclination direction of the side surface of the piece and from the direction perpendicular to the inclination direction of the side surface of the piece A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined, and the bottom plate is spaced apart from the side surface of the piece whose upper part is inclined. In contrast, it is inclined in a direction perpendicular to the inclination direction of the side surface of the piece,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where at least the angle between the side surface of the piece and the bottom plate is an obtuse angle, the piece located at the end of the mold In addition, the present invention provides a method for producing a fiber-reinforced synthetic resin lattice-like body, wherein the continuous fibers are folded back with the guide pins.

Further, the present invention provides a mold in which two or more pieces are formed on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction, and continuous fibers are extended in the arrangement direction of the pieces, thereby By repeating the continuous fiber folded in a U-shape and extending in the opposite direction with a piece located at the end of the, the continuous fibers are arranged in a lattice shape,
Impregnating the continuous fiber arranged in the lattice shape with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, the outer side of the piece located at the end of the mold in the direction perpendicular to the inclination direction of the side surface of the piece, and when viewed from the direction perpendicular to the inclination direction of the side surface of the piece. A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined,
The guide pin is inclined in a direction perpendicular to the inclination direction of the side surface of the piece with respect to the bottom plate so as to be separated from the side surface of the piece whose upper portion is inclined,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle between the side surface of the piece and the bottom plate becomes an obtuse angle, the piece located at the end of the mold In addition, the present invention provides a method for producing a fiber-reinforced synthetic resin lattice-like body according to the present invention, wherein the continuous fibers are folded back with the guide pins.

In addition, the present invention, after impregnating the continuous fiber with a curable resin,
A continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces in a mold formed so that two or more pieces are arranged in the vertical direction and / or the horizontal direction on the bottom plate, The continuous fibers are arranged in a lattice shape by repeatedly folding the continuous fibers in a U-shape with a piece located at the end of the mold and extending in the opposite direction,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, the outer side of the piece located at the end of the mold in the direction perpendicular to the inclination direction of the side surface of the piece, and when viewed from the direction perpendicular to the inclination direction of the side surface of the piece. A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined,
The guide pin is inclined in a direction perpendicular to the inclination direction of the side surface of the piece with respect to the bottom plate so as to be separated from the side surface of the piece whose upper portion is inclined,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle between the side surface of the piece and the bottom plate becomes an obtuse angle, the piece located at the end of the mold In addition, the present invention provides a method for producing a fiber-reinforced synthetic resin lattice-like body according to the present invention, wherein the continuous fibers are folded back with the guide pins.

Since the lattice-shaped body made of fiber-reinforced resin of the present invention includes a member whose side surface is inclined with respect to the vertical direction in at least one of the linear vertical member and the linear horizontal portion constituting the lattice shape, It is preferable as a louver used for the purpose of blindfolding. The louver using the lattice-shaped body made of the fiber reinforced resin of the present invention is excellent in characteristics required for the louver such as strength, daylighting property, blinding effect and weather resistance.
The method for manufacturing a fiber-reinforced resin lattice-like body of the present invention prevents the continuous fiber from being shifted up by the side surface despite the use of a piece whose side surface is inclined. It is preferable for manufacturing a grid-like body made of fiber reinforced synthetic resin including a member having a side surface inclined with respect to the vertical direction in at least one of the linear vertical member and the linear horizontal member.

Hereinafter, the present invention will be described more specifically with reference to the drawings. However, the drawings are for illustrative purposes, and the present invention is not limited to the illustrated forms.
FIG. 1 is a perspective view showing one embodiment of a fiber-reinforced synthetic resin (FRP) grid-like body of the present invention (hereinafter also referred to as “the grid-like body of the present invention”). A lattice-like body 1 shown in FIG. 1 has an outer frame 11 defined by a linear vertical member (outer frame member) 20 and a linear horizontal member (outer frame member) 30 that are orthogonal to each other. In the outer frame 11, a plurality of linear vertical members 21 and linear horizontal members 31 are arranged so as to cross each other to form a lattice shape. That is, the lattice-like body 1 in FIG. 1 includes a linear vertical member 21, a linear horizontal member 31, and a rectangular outer frame 11 composed of a linear vertical member 20 and a linear horizontal member 30. It has a structure in which a grid-like grid shape made of is provided.
As is apparent from the figure, the linear vertical members 20 and 21 and the linear horizontal members 30 and 31 constituting the lattice-like body 1 have side surfaces extending upward from the plane on which the lattice shape is placed. That is, it has a girder shape with a certain thickness.

FIG. 2 is a side perspective view of the lattice-like body 1 shown in FIG. As apparent from FIG. 2, in the lattice-like body 1, the side surfaces of the linear vertical members 21 are upright.
FIG. 3 is a side perspective view of the lattice-like body 1 shown in FIG. As apparent from FIG. 3, in the lattice-like body 1, the side surfaces of the linear transverse members 31 are inclined with respect to the vertical direction. That is, in the lattice-shaped body of the present invention, at least one side surface of the line-shaped vertical member and the line-shaped horizontal member having a lattice shape is inclined with respect to the vertical direction.

  In the lattice-like body 1 of the present invention, the constituent members, that is, the linear vertical members 20 and 21 and the linear horizontal members 30 and 31 are members made of FRP. Here, the fibers constituting the reinforcing material are preferably oriented in the longitudinal direction of each member constituting the lattice-like body 1, and more preferably, the reinforcing material is a continuous fiber, and the continuous fiber is in a lattice shape. Oriented in the longitudinal direction of each member constituting the body 1. With such a configuration, the lattice-like body 1 is excellent in strength.

In the lattice-like body 1 of the present invention, the fibers constituting the reinforcing material widely include those used for fiber-reinforced composite materials. Specific examples include glass fibers and carbon fibers, but other fibers such as metal fibers, alumina fibers, silicon carbide fibers, ceramic fibers such as silicon nitride, aramid fibers, polyethylene fibers, and polyarylate fibers. Such synthetic resin fibers may be used. Of these, continuous fibers of glass fibers, particularly yarns made of E-glass fibers, monofilaments, and rovings are preferred from the viewpoint of strength, manufacturing cost, moldability, etc., and filament diameters of 6 to 30 μm, preferably 11 to 27 μm, and strands are preferred. A glass roving with a count of 1000 to 5000 tex is preferred.
It is preferable that the content rate of the fiber in each member which comprises a grid | lattice body is about 10-70 vol%. When the fiber content is in the above range, the lattice-shaped body is excellent in strength.

  The resin cured product forming the matrix also includes a wide range of cured resin materials used for FRP. Specifically, for example, it is appropriately selected from a cured product of a curable resin such as an unsaturated polyester resin, an epoxy acrylate resin, a diallyl phthalate resin, an epoxy resin, or a phenol resin.

  FIG. 4 is a perspective view of another embodiment of the lattice-like body of the present invention. The grid-like body 1 in FIG. 4 is different from the grid-like body in FIG. 1 in that it does not have an outer frame. That is, the lattice-like body 1 in FIG. 4 is configured only by a lattice portion formed by the linear longitudinal member 21 and the linear transverse member 31. Regarding the constituent members of the lattice portion, the side surfaces of the linear longitudinal members 21 are upright, and the side surfaces of the linear transverse members 31 are inclined with respect to the vertical direction, like the lattice-like body 1 of FIG.

In the lattice-shaped body 1 of the present invention, the outer frame 11 is an optional component, and the outer frame 11 may be provided as in the lattice-shaped body 1 of FIG. There is no need for an outer frame. Which form should be selected may be appropriately selected according to the purpose. For example, as will be described later, when used as a louver for the purpose of blindfolding, the lattice-like body 1 shown in FIG. 1 has an outer frame 11, so that the manufacture of the louver frame and the attachment of the lattice-like body to the frame, etc. There is no hassle and it can be attached to a desired place as it is.
On the other hand, since the lattice-like body 1 shown in FIG. 4 has no outer frame, it is preferable to be used by being fitted in a place where the outer frame is located. Further, the structure having only the lattice portion without the outer frame is preferable in combination with being made of FRP that is easy to process, by cutting the lattice-like body 1 into a desired size or shape.
In addition, in the grid-like body having an outer frame, it is preferable that the side surface of the outer frame is upright as shown in FIG. If the side of the outer frame is upright, the outer frame can be used as it is as a louver frame when used as a louver as described later.

  FIG. 5 is a perspective view of still another embodiment of the lattice-shaped body of the present invention. The grid-like body 1 shown in FIG. 5 does not have the linear vertical members 21 other than the linear vertical members 20 constituting the outer frame 11, and only a plurality of linear horizontal members 31 are arranged in parallel in the outer frame 11. Are arranged. In the lattice-like body 1 in FIG. 5, the side surface of the linear transverse member 31 is inclined with respect to the vertical direction.

  In the present invention, the term “lattice shape” refers to a structure in which linear members are arranged at intervals in the longitudinal and / or lateral directions. Therefore, the grid-like body of the present invention is like the grid-like body 1 shown in FIG. 1 or FIG. As shown in FIG. 5, the outer frame 11 has a shape similar to a conventional louver made of aluminum, in which only one of a linear vertical member and a linear horizontal member is arranged in parallel. Including both.

  Furthermore, the louvered lattice-shaped body may not have an outer frame. FIG. 6 is a perspective view showing still another embodiment of the lattice-shaped body of the present invention. In the lattice-like body 1 shown in FIG. 6, a plurality of linear horizontal members 31 are arranged in parallel, and the side surfaces of the linear horizontal members 31 are inclined with respect to the vertical direction. With respect to such a linear transverse member 31, one linear longitudinal member 21 is arranged so as to intersect the vicinity of the center in the longitudinal direction of the linear transverse member 31.

  The grids shown in FIGS. 5 and 6 are preferable for use as an alternative to a conventional louver made of aluminum or the like. Since the lattice-like body of the present invention is made of FRP, it is lighter than conventional aluminum or resin louvers, and has excellent strength, light transmittance, and corrosion resistance.

FIG. 7 is a perspective view of still another example of the form of the grid-like body of the present invention, and FIG. 8 is a side perspective view of the grid-like body 1 of FIG. These are side perspective views which looked at the grid-like body 1 of FIG. 7 from the arrow B direction.
The grid-like body 1 shown in FIG. 7 has a grid shape in which the linear vertical members 21 and the linear horizontal members 31 intersect in the outer frame 11 in the same manner as the grid-like body 1 shown in FIG. However, as apparent from FIGS. 8 and 9, the side surfaces of both the linear vertical member 21 and the linear horizontal member 31 are inclined with respect to the vertical direction.

  As shown in FIGS. 1 and 4, the grid-like body of the present invention is either one of a linear vertical member 21 and a linear horizontal member 31 constituting the grid-like body 1 (in the case of FIGS. 1 and 4). Only the side surface of the linear transverse member 31) is inclined with respect to the vertical direction, and the side surface of the remaining member (the linear longitudinal member 21 in the case of FIGS. 1 and 4) is upright, and FIG. As shown in FIG. 2, both the linear vertical member 21 and the linear horizontal member 31 include both whose side surfaces are inclined with respect to the vertical direction. Both the linear vertical member 21 and the linear horizontal member 31 as shown in FIG. 7 are unique in that the lattice-like body 1 whose side surfaces are inclined with respect to the vertical direction intersects with each other. Form a pattern. For this reason, it is preferably used for applications in which the aesthetic appearance is emphasized.

  That is, the lattice-shaped body of the present invention includes a wide variety of linear vertical members or linear horizontal members having a lattice shape in which at least one side surface is inclined with respect to the vertical direction. Therefore, the size and shape of the lattice-like body of the present invention are not limited to those shown in the drawings. That is, for any of the length, width and thickness, the size of the entire lattice-like body can be arbitrarily selected. Further, the size of the individual lattices constituting the lattice-like body and the number of lattices included in the lattice-like body can be arbitrarily selected. Moreover, the inclination angle of the member inclined with respect to the vertical direction can be arbitrarily selected.

Furthermore, the shape of the lattice is not limited to a rectangular shape in which members constituting the lattice are orthogonal to each other. FIG. 10 is a plan view of still another embodiment of the grid-like body of the present invention, as viewed from above. In the lattice-like body 1 of FIG. 10, the linear longitudinal member 21 and the linear transverse member 31 intersect in an oblique direction to form a bias-like lattice shape.
FIG. 11 is a plan view of still another embodiment of the lattice-shaped body of the present invention. In the lattice-like body 1 of FIG. 11, the linear longitudinal member 21 and the linear transverse member 31 are orthogonal to each other to form a lattice shape, and the lattice shape is attached to the outer frame 11 obliquely.

The lattice-like body of the present invention is excellent in strength because the constituent members are made of FRP. Depending on the use of the grid, for example, when used as a blind louver as described later, each member constituting the grid performs a three-point bending test (JIS K6911) according to the procedure shown in the example. In this case, the following strength is preferable.
Bending strength: 3 kg / mm ² or more (29 MPa or more)
Flexural modulus: 150 kg / mm ² or more (1.5 GPa or more) (3-point bending)

  Since the structural member of the present invention is made of FRP, the lattice member of the present invention is excellent in transparency, that is, light transmittance. For this reason, when it uses as a louver for the purpose of blindfold mentioned later, it can be set as the louver which made the blindfold effect and lighting property compatible. When used as such a louver, the total light transmittance (JIS K7105) is preferably 10% or more.

The lattice-like body of the present invention can be preferably used as a louver that is attached to an opening of a building window glass or the like for the purpose of blindfolding.
Since the lattice-shaped body of the present invention includes members whose side surfaces are inclined with respect to the vertical direction as members constituting the lattice, the conventional FRP lattice-shaped body in which the members constituting the lattice are upright is used. The blindfold effect is better than the louver. Therefore, a louver excellent in both the blinding effect and the daylighting property is provided.

  On the other hand, compared to conventional aluminum or resin louvers, it is superior in strength and resilience. Although this characteristic is preferable from the viewpoint of durability, it is particularly preferable for crime prevention. That is, when an intruder into a building tries to destroy the lattice portion with a hammer or the like, it is deformed instantaneously, but quickly returns to its original shape and is not easily broken. That is, since the energy absorption with respect to destruction is very large, it is difficult to break.

In addition, when compared to a conventional aluminum louver, when a louver of the same size and shape is manufactured, the lattice-like body of the present invention has a lower specific gravity because the constituent members are made of FRP, and thus is lighter. It is.
Furthermore, since the structural member of the present invention is made of FRP, the lattice member has high light transmittance and excellent daylighting.
Furthermore, the lattice-shaped body of the present invention is excellent in corrosion resistance because the constituent members are made of FRP.
On the other hand, when compared with conventional resin louvers such as acrylic resin and polycarbonate, the strength is far superior.
Moreover, it is excellent in heat resistance and does not melt easily even when a flame is brought close to it, which is also a preferable characteristic for crime prevention.
In addition, there is little difference in thermal expansion due to cold and warm, it does not deform due to seasonal changes, and therefore has excellent weather resistance.

  The lattice-like body of the present invention described above can be preferably manufactured by a manufacturing method described in detail below. However, in the lattice-shaped body of the present invention, it is sufficient that at least one side surface shape of the linear vertical member or the linear horizontal member constituting the lattice shape is inclined with respect to the vertical direction. It is not limited to the method described in.

First, a description will be given of a first embodiment (hereinafter, also referred to as “first manufacturing method of the present invention”) of the method for manufacturing a lattice-shaped body of the present invention. FIG. 12 shows the first manufacturing method of the present invention. FIG. 2 is a perspective view of a molding die used when the lattice-like body shown in FIG. 1 is manufactured. In FIG. 12, the arrow C direction is the horizontal direction, and the arrow D direction is the vertical direction. In addition, the dimension in a figure is for description of an Example, The dimension of a type | mold is not limited to this. This also applies to FIGS. 13 and 19 described later.
The mold 4 in FIG. 12 has a bottom plate 41 on which continuous fibers are arranged. An outer frame 42 is formed on the bottom plate 41 so as to protrude in the vertical direction along the outer edge portion. On the inner side of the outer frame 42 on the bottom plate 41, a plurality of pieces 5 (51, 52) are formed so as to protrude in a vertical direction and a horizontal direction so as to form a grid. FIG. 13 is a side view of the mold 4 of FIG. 12 as viewed from the direction of the arrow C, and the outer frame 42 on the near side is omitted. As is clear from FIG. 13, the piece 5 is inclined toward the front side in the vertical direction of FIG. 12 with respect to the vertical direction. That is, the side surface of the piece 5 facing in the vertical direction in FIG. 12 is inclined toward the front side in the vertical direction in FIG.
However, as apparent from FIG. 13, among the pieces 5 arranged in the vertical direction in FIG. 12, the pieces 51 and 52 located at both ends of the mold 4 are inclined only on the inner side surfaces, and the outer frame 42. The outer side facing the upright is upright.
The inclination angle of the side surface of the piece 5 corresponds to the inclination angle of the side surface that is inclined with respect to the vertical direction of the linear member 31 that constitutes the lattice-like body manufactured here, that is, the lattice-like body 1 shown in FIG. doing.

  14, FIG. 15 and FIG. 17 are diagrams for explaining the procedure for arranging continuous fibers in the mold of FIG. 12 in the first production method of the present invention, and the mold of FIG. 12 is viewed from directly above. 14 is a plan view, and the lower side of FIG. 14 corresponds to the front side of FIG. In FIG. 14, among the inclined side surfaces of the piece 5, the side surface seen from the upper side, that is, the side surface on the side where the angle formed by the side surface of the piece 5 and the bottom plate 41 becomes an obtuse angle is shown by hatching.

  In the first manufacturing method of the present invention, after pouring and filling the illustrated mold with a curable resin, the continuous fibers are extended in the arrangement direction of the pieces 5, that is, in the vertical direction or the horizontal direction, using the pieces 5 as a guide. . Then, the continuous fibers are folded back in a U-shape by the pieces located at the ends of the mold in the arrangement direction, and the continuous fibers are extended in the opposite direction. By repeating such a procedure, continuous fibers are arranged in a zigzag manner along the piece 5 on the mold 4.

  As shown in FIG. 14, the continuous fiber 7 is moved in the direction from the piece 510 to the piece 511 along the concave portion between the outer side surface and the outer frame 42 of the piece 51 located at the end on the front side in the vertical direction in FIG. 12. To extend. That is, in FIG. 12, continuous fibers are extended in the lateral direction (arrow C direction) that is perpendicular to the longitudinal direction (arrow D direction) in which the side surface of the piece 5 is inclined. As described above, the outer side surface of the piece 51 located at the end of the mold 4 is not inclined and stands upright.

  Next, as shown in FIG. 15, the continuous fiber 7 is folded back into a U shape with the piece 511 located at the end of the mold 4, and the next concave portion, that is, the inclined side surface inside the piece 51, and the next The continuous fiber 7 is extended in the direction of the piece 510 from the piece 511 in FIG. 15 along the recessed part between the side of the piece 5 located in a row | line | column. By repeating such a procedure, the continuous fibers 7 are arranged in a zigzag manner along the piece 5 on the mold 4.

Here, as an important point, in the first manufacturing method of the present invention, when continuous fibers are extended in a direction perpendicular to the inclination direction of the side surface of the piece 5, the angle formed between the bottom plate 41 and the side surface of the piece 5 is The continuous fiber starts to extend from the side that becomes acute. More specifically, the continuous fibers 7 are extended from the side of the side surface where the angle with respect to the bottom plate 41 becomes an acute angle when viewed with respect to the piece 5 whose opposite side surfaces are inclined with respect to the bottom plate 41.
This will be further described with reference to the drawings. Continuously in the vertical direction (arrow D direction) in FIG. 12, which is the inclination direction of the side surface of the piece 5, that is, in the horizontal direction (arrow C direction) in FIG. When the fiber 7 is extended, the continuous fiber 7 has a bottom plate 41 and a side surface of the piece 5 with respect to the piece 5 whose both side surfaces are inclined (that is, pieces other than the pieces 51 and 52 at the end of the mold 4). There are two options: extending from the side where the angle formed is an acute angle, or extending the continuous fiber 7 from the side where the angle formed by the bottom plate 41 and the side surface of the piece 5 is an obtuse angle. In the first manufacturing method of the present invention, the former of these two types is essential. Therefore, as shown in FIG. 14, the continuous fiber 7 starts extending from the piece 51 side, not from the piece 52 side.

  The reason for this will be described with reference to FIG. FIG. 16 is a side view of the mold 4 of FIG. 12 as viewed from the direction of the arrow C, and the outer frame 42 on the near side is omitted as in FIG. In FIG. 16, continuous fibers 71 and 72 are shown extending in the lateral direction of FIG. 12 in the recesses between the inclined side surfaces of the piece 5. As described above, when the continuous fibers 71 and 72 are arranged in a zigzag manner along the piece 5, the continuous fibers 71 and 72 are folded back into a U shape by the piece 5 at the end of the mold. Next, a force is applied to 72 in the row direction of the pieces 5 for extending the continuous fibers 71 and 72. A force in the direction of arrow E acts on the continuous fiber 71 extending from the left side in FIG. 16, that is, from the piece 51 side, in the right direction. On the other hand, a force in the direction of arrow F acts on the continuous fiber 72 extending from the right side in FIG. These forces are problematic in relation to the inclined side of the piece.

Like the continuous fiber 72, when the continuous fiber 72 is extended from the right side in the drawing, that is, the side where the angle formed by the bottom plate 41 and the side surface of the piece 5 is an obtuse angle, the force in the arrow F direction is applied to the continuous fiber 72. Therefore, the continuous fiber 72 is shifted upward along the side surface of the piece 5. As a result, the distribution of continuous fibers in the constituent members of the lattice-like body becomes non-uniform, which has an important influence on characteristics such as strength of the produced lattice-like body.
On the other hand, when the continuous fiber 71 is extended from the left side in the figure, that is, the side where the angle formed between the bottom plate 41 and the side surface of the piece 5 is an acute angle like the continuous fiber 71, the force in the direction of arrow E is applied to the continuous fiber 71. Therefore, a force acts downward on the continuous fiber 72 along the side surface of the piece 5. As a result, the continuous fibers are densely present in the constituent members of the lattice-like body, and the produced lattice-like body is excellent in properties such as strength.

In the first manufacturing method of the present invention, as shown in FIG. 17, the continuous fibers 7 ′ are also extended in the longitudinal direction in FIG. In addition, about the case where a continuous fiber is extended to the vertical direction, since the side surface of the piece which contact | connects a continuous fiber is standing upright, you may extend a continuous fiber from which edge part. And since the continuous fiber extended to a vertical direction and the continuous fiber extended to a horizontal direction are made to cross | intersect, extension of a continuous fiber is performed alternately.
In the above description, the case where the continuous fiber 7 extends in the direction of the arrow C, that is, in the direction from the piece 510 to the piece 511 has been described as an example, but the direction perpendicular to the inclined direction of the side surface of the piece 5, that is, the direction of the arrow C Or the case where the continuous fiber 7 is extended in the opposite direction is intended, and the case where the continuous fiber 7 is extended in the direction from the piece 511 to the piece 510 is considered similarly. About this point, in FIG. 17, when extending continuous fiber 7 'to the arrow D direction, another arrangement | positioning procedure of the continuous fiber in the 1st manufacturing method of this invention demonstrated below using FIG. 18, and The same applies to the second manufacturing method of the present invention described later.

  FIG. 18 is a diagram for explaining another procedure when arranging continuous fibers in a mold in the first manufacturing method of the present invention. In FIG. 18, similarly to the above, the continuous fiber 7 is extended from the piece 510 to the piece 511 along the recess between the outer side surface of the piece 51 and the outer frame 42, and the piece located at the end. In step 511, the continuous fiber 7 is folded back in a U-shape and extends in the opposite direction (that is, in the direction from the piece 511 to the piece 510). After extending into the recess between the side surfaces of the piece 5, the continuous fiber 7 is folded back to the side where the continuous fiber 7 is first extended by the piece 510 located at the opposite end. That is, in this procedure, the continuous fiber 7 is wound around the row of pieces 51 arranged in the extending direction. After the continuous fiber 7 is wound once around the row of the pieces 51, the continuous fiber is wound around the row of the pieces 5 arranged in the next row. Also in this case, as shown in FIG. 18, it is important to extend the continuous fiber from the side where the angle formed by the bottom plate and the side surface of the piece is an acute angle when viewed with respect to the piece 5 whose both side surfaces are inclined. .

  In the first manufacturing method of the present invention, either of the two continuous fiber arrangement procedures described above may be selected. In either of the two arrangement procedures described above, since the continuous fibers extend from end to end of the pieces present on the mold, the manufactured lattice-like body is excellent in strength characteristics and elastic characteristics. Moreover, in FRP, it is tensile strength that the continuous fiber as the reinforcing material can exhibit the strength most efficiently. Accordingly, the continuous fiber is extended from the side where the angle between the bottom plate and the side surface of the piece becomes an acute angle, and a force is applied to the continuous fiber in the downward direction along the side surface of the piece so that the continuous fiber is formed in the structural member of the lattice-like body. It is preferable that the be present in close proximity in order to exhibit the effect of containing continuous fibers.

  After disposing a desired amount of continuous fibers on the mold in the above procedure, the continuous fibers and the curable resin are pressed from above to impregnate the continuous fibers with the curable resin. This procedure also serves as defoaming of the curable resin. However, in the first production method of the present invention, the continuous fiber is impregnated with the curable resin is not limited to this stage. For example, continuous fibers impregnated with a curable resin in advance may be arranged in a lattice shape in a mold filled with a curable resin. In this case, since the continuous fiber is impregnated with the curable resin in advance, the procedure of pressing the continuous fiber from above after arranging the continuous fiber in a lattice shape may not be performed. In any of the above procedures, the curable resin may be poured into the mold after the continuous fibers are arranged in a lattice shape. Furthermore, before pouring the curable resin, a desired amount of continuous fibers may be arranged in a lattice shape on the mold, and then the resin may be poured. Alternatively, continuous fibers impregnated with a curable resin in advance may be arranged in a lattice shape on a mold not filled with the curable resin.

Next, after the curable resin is heat-cured or photocured, the obtained grid-like body is demolded to obtain a grid-like body made of FRP having a grid-like grid shape as shown in FIG. . In order to remove the lattice-like body 1 from the mold 4, as is apparent from FIG. At this time, the part 52 and the part of the outer frame 42 facing the piece 51 are removed to facilitate demolding.
The lattice-like body obtained in this way may be used as a louver for blinding as it is, or the outer frame portion is cut and used as a lattice-like body having no outer frame as shown in FIG. May be.

  According to the first manufacturing method of the present invention, by using a mold in which pieces having a desired shape are arranged in a desired manner according to the shape of the lattice-shaped body to be manufactured, the linear vertical shape forming the lattice shape is used. Among the members and the linear transverse members, the lattice-like body of the present invention in which at least one side surface is inclined with respect to the vertical direction can be preferably manufactured. For example, when manufacturing a louver-like lattice-shaped body 1 as shown in FIG. 5, as shown in FIG. 19, a mold 4 in which a plurality of horizontally long pieces 5 are arranged in the vertical direction may be used. Moreover, as shown in FIG. 7, in order to manufacture the grid-like body 1 in which both the vertical and horizontal members 21 and 31 constituting the grid-like body are inclined, a mold whose side faces are inclined in both the vertical and horizontal directions is used. Use it. In this case, the continuous fibers are extended from the side where the angle formed by the bottom plate and the side surface of the piece is an acute angle in the same manner as described above in the case where the continuous fiber is extended in either the vertical or horizontal direction in which the pieces are arranged.

Further, the side surface of the piece 5 may have a tapered shape like a conventional mold in order to facilitate the removal of the lattice-like body.
Furthermore, when the continuous fiber 7 impregnated with the curable resin can be appropriately held on the outer surface of the piece 5 located at the end of the mold 1, the mold 1 may not have the outer frame 42. .

  Next, a second embodiment of the method for manufacturing a lattice-like body of the present invention (hereinafter referred to as “second manufacturing method of the present invention”) will be described. FIG. 20 is a perspective view of a molding die used when the lattice-shaped body shown in FIG. 1 is manufactured by the second manufacturing method of the present invention. 21 is a side view of the mold 4 of FIG. 20 viewed from the direction of the arrow C, and FIG. 22 is a side view of the mold 4 of FIG. 20 viewed from the direction of the arrow D. 21 and 22, the outer frame 42 on the near side is omitted.

  The mold 4 shown in FIG. 20 is basically the same as FIG. 12 except that the guide pins 6 are provided on the bottom plate 41. As shown in FIGS. 20 and 22, the guide pin 6 is located at the end of the mold 4 in the direction of the arrow C, in other words, at the end of the mold 4 in the direction perpendicular to the inclined direction of the side surface of the piece 5. It is formed on the outer side of the positioned piece 5 (51), and its upper portion is obliquely oriented with respect to the bottom plate 41 so as to be separated from the side surface of the piece 5 (51). Further, as best shown in FIG. 21, when viewed from the direction perpendicular to the direction of the inclination of the side surface of the piece 5 in the direction of arrow C, in other words, the guide pin 6 is inclined on the side surface. The guide pins 6 are inclined at substantially the same angle in the same direction as the inclination direction of the pieces 5.

  That is, when viewed from the direction of the arrow C, the guide pin 6 is inclined in the same direction as the inclination direction of the side surface of the piece 5, and the angle α formed between the guide pin 6 and the bottom plate 41 is the inclined piece 5. This is substantially the same as the angle formed between the side surface and the bottom plate 41 (hereinafter referred to as “angle γ”). Here, in the case of an angle γ, an angle on an acute angle side among the angles formed by the side surface of the inclined piece 5 and the bottom plate 41 is indicated. In addition, the fact that the angles are substantially the same means that the angle α and the angle γ do not have to coincide completely. Specifically, the angle α and the angle γ may be in a relationship such that, for example, the entire guide pin 6 is accommodated in the recess between the pieces 5 in FIG. If the angle α and the angle γ are in such a relationship, the continuous fibers in the constituent members of the obtained lattice-like body when the fiber-reinforced resin-made lattice-like body is produced using the second production method of the present invention. The distribution of becomes uniform. Therefore, the manufactured lattice-shaped body is excellent in properties such as strength. However, it is preferable that the angle α and the angle γ are substantially the same angle.

  As shown in FIG. 22, the guide pin 6 is inclined with respect to the bottom plate 41 so that the upper portion of the guide pin 6 is separated from the side surface of the piece 5 (51) even in the direction perpendicular to the inclination direction of the piece 5. . Here, the angle β formed by the guide pin 6 and the bottom plate 41 is equal to or smaller than the angle γ defined above. The angle β is not particularly limited as long as it is equal to or smaller than the angle γ. However, as apparent from FIGS. 20 and 22, the smaller the angle β, the more space on the mold 4 necessary for providing the guide pins 6, more specifically, the pieces 5 (51, 52) and the outer frame 42. It is necessary to widen the interval. The space is a portion corresponding to the outer frame 11 of the lattice-shaped body 1 to be manufactured. Therefore, there is no problem when the shape of the lattice-like body 1 to be manufactured and the shape of the mold 4 coincide with each other. However, for example, the lattice-like body 1 without an outer frame such as the lattice-like body 1 shown in FIG. In the case of manufacturing, when the space is widened, the amount of resin that is wasted when the lattice-shaped body is manufactured increases. In addition, when the thickness of the outer frame 41 is the same in the vertical and horizontal directions as in the lattice-like body 1 shown in FIG. 1, the outer frame obtained from the space has a thickness larger than the desired thickness, It is necessary to process the outer frame after manufacturing the lattice-like body in order to obtain a thickness of 10 mm. Accordingly, the difference between the angle γ and the angle β is preferably 0 degree or more and 20 degrees or less, and more preferably 10 degrees or more and 20 degrees or less.

  FIG. 23 is a view for explaining the procedure for placing continuous fibers on the mold 4 shown in FIG. 20 in the second manufacturing method of the present invention, and is a plan view of the mold of FIG. 20 as viewed from directly above. It is. The second manufacturing method of the present invention is that the curable resin is poured into the illustrated mold and filled, and then the continuous fiber 7 is extended using the piece 5 as a guide and arranged on the mold 4 in a zigzag manner. This is the same as the first manufacturing method. However, unlike the first manufacturing method of the present invention, the position where the continuous fiber 7 starts to be extended is not particularly limited. That is, when the continuous fiber 7 extends in the direction of the arrow C, that is, in the direction perpendicular to the inclination direction of the side surface of the piece 5, the side formed by the side surface of the piece 5 and the bottom plate 41 becomes an acute angle, that is, FIG. It is not always necessary to start from the piece 51 side. Therefore, when the continuous fiber 7 is extended in the direction of arrow C, it can be started from the side where the angle formed between the side surface of the piece 5 and the bottom plate 41 becomes an obtuse angle, that is, the piece 52 side. However, in the second manufacturing method of the present invention, when the continuous fiber 7 is extended from the piece 52 side in the direction of arrow C, the continuous fiber 7 is located not on the piece 5 located at the end of the mold 4 but on the outside of the piece 5. The continuous fiber 7 is folded back by the guide pin 6 that is used.

  As described above with reference to FIG. 16, when the continuous fiber 72 extends from the piece 52 side in the direction of arrow C in FIG. 12 (FIG. 20), a force in the direction of arrow F acts on the continuous fiber 72. There arises a problem that the continuous fiber 72 slides upward along the inclined side surface of the piece 5. In the second manufacturing method of the present invention, when the continuous fiber extends from the piece 52 side in the direction of arrow C, the guide pin 6 located outside the piece 5 instead of the piece 5 located at the end of the mold 4. The problem is solved by turning the continuous fiber 7 back.

  As shown in FIG. 22, the guide pin 6 is inclined at an angle β toward the outside with respect to the bottom plate 41 in the direction perpendicular to the inclination direction of the side surface of the piece 5. When the continuous fiber 7 is folded back by the guide pin 6, the continuous fiber 7 passes outside the guide pin 6, so that the continuous fiber 7 contacts the guide pin 6 that is inclined with respect to the bottom plate 41 at an angle β, that is, an acute angle direction. At this time, the relationship between the continuous fiber 7 and the guide pin 6 is the same as the relationship between the continuous fiber 71 and the piece 5 in FIG. Thereby, a downward force acts on the continuous fiber 6. In the second manufacturing method of the present invention, the upward force acting on the continuous fiber 72 in FIG. 16 is suppressed and preferably canceled out by the action of the downward force. Here, if the guide pin 6 is inclined at an angle β with respect to the bottom plate 41 so that the upper portion of the guide pin 6 is separated from the side surface of the piece 5 in the arrow C direction, a downward force is applied to the continuous fiber 6. Works. However, the angle β is preferably equal to or less than the angle γ. If the angle β is equal to or smaller than the angle γ, the upward force acting on the continuous fiber 72 in FIG. 16 is completely cancelled, and the downward force always acts on the continuous fiber. In this component, continuous fibers are densely present, and the produced lattice is particularly excellent in properties such as strength.

  In this way, as shown in FIG. 23, the continuous fiber 7 is extended from the piece 52 side in the direction of arrow C and folded back by the guide pin 6, and the continuous fiber 7 is placed on the piece 4 on the piece 5. Zigzag along. When the continuous fiber 7 reaches the recess between the piece 51 and the outer frame 42, the continuous fiber is subsequently extended along the arrow C direction from the piece 51 side along the piece 5 on the mold 4. Place in a zigzag. In the second manufacturing method of the present invention, when the continuous fiber is extended in the direction of arrow C from the piece 52 side, the guide is located outside the piece 5 instead of the piece 5 located at the end of the mold 4. It is essential to fold the continuous fiber 7 with the pin 6, and when extending the continuous fiber in the opposite direction, that is, in the direction of arrow C from the piece 51 side, in other words, the side surface of the piece 5 and the bottom plate 41 When the continuous fiber 7 is extended in a direction perpendicular to the inclination direction of the side surface of the piece 5 from the side where the angle formed by the straight line is an acute angle, it is not always necessary to fold the continuous fiber 7 with the guide pin 6. Therefore, as in the first manufacturing method of the present invention, the continuous fiber 7 may be folded back into a U shape by the piece 5 located at the end of the mold 4. However, since the orientation of the continuous fibers in the linear longitudinal member and the linear transverse member of the lattice-like body to be manufactured becomes more uniform, the continuous fiber 7 can also be extended from the piece 51 side in the direction of arrow C. It is preferable that the continuous fiber 7 is folded back by the guide pin 6 located outside the piece 5 instead of the piece 5 located at the end of 4.

  FIG. 24 is a diagram showing another embodiment of the second manufacturing method of the present invention, and the relationship between the continuous fiber 7 and the guide pin 6 is different from FIG. That is, in FIG. 24, when the continuous fiber 7 is folded back by the piece 5 located at the end of the mold 4, the guide pin 6 located outside the piece 5 only when the force in the direction of arrow F in FIG. Then, the continuous fiber 7 is folded back. In other words, the continuous fiber 7 extends along the surface on the side where the angle formed between the side surface of the piece 5 and the bottom plate 41 is an obtuse angle, and the continuous fiber 7 is located at the end of the mold 4. The continuous fiber 7 is folded back only by the guide pin 6 located outside the piece 5 instead of the piece 5 located at the end of the die 4 only when reaching the end. Therefore, the continuous fiber 7 turned back by the guide pin 6 is extended to the recessed part of the next row | line | column, without passing through the guide pin 6 located in the next row | line. The effect of canceling the force in the direction of the arrow F in FIG. 16 and preventing the continuous fiber 7 from sliding up is exhibited even in the procedure shown in FIG. However, since the orientation of the continuous fibers 7 in the longitudinal and transverse members constituting the lattice-like body 1 becomes uniform, the procedure shown in FIG. 23 is preferable.

Also in the second manufacturing method of the present invention, the continuous fibers are extended in the direction of arrow D in FIG. 23 as in the first manufacturing method of the present invention. Here, when extending continuous fibers in the direction of arrow D in FIG. 23, since the side surfaces of the pieces in contact with the continuous fibers are upright, the continuous fibers are positioned at the end of the mold 4 in the direction of arrow D, It may be folded back into a U-shape at 52 and arranged zigzag along the piece 5 on the mold 4.
Then, after arranging a desired amount of continuous fibers on the mold 4 in a lattice shape, the continuous fibers and the curable resin are pressed from above to impregnate the continuous fibers with the curable resin. However, as in the first manufacturing method of the present invention, continuous fibers impregnated with the curable resin in advance may be arranged in a lattice shape in a mold filled with the curable resin. In this case, since the continuous fiber is impregnated with the curable resin in advance, the procedure of pressing the continuous fiber from above after arranging the continuous fiber in a lattice shape may not be performed. In any of the above procedures, the curable resin may be poured into the mold after the continuous fibers are arranged in a lattice shape. Furthermore, before pouring the curable resin, a desired amount of continuous fibers may be arranged in a lattice shape on the mold, and then the resin may be poured. Alternatively, continuous fibers impregnated with a curable resin in advance may be arranged in a lattice shape on a mold not filled with the curable resin.

  Next, after the curable resin is light-cured or thermally cured, the obtained lattice-like body is demolded to obtain a grid-like body 1 made of FRP having a grid-like lattice shape as shown in FIG. be able to. At this time, the piece 52, the part of the outer frame 42 that faces the piece 51, and the guide pin 6 are removed to facilitate demolding.

  Further, in the mold 4 shown in FIGS. 20 and 23, the guide pins 6 are provided at both ends in the direction of the arrow C. However, the arrangement of the guide pins 6 in the mold 4 used in the second manufacturing method of the present invention. Is not limited to this. That is, as described above, in the second manufacturing method of the present invention, it is essential to fold the continuous fiber with the guide pin when the continuous fiber 7 is extended in the direction of arrow C from the piece 52 side. Yes, the guide pin 6 may be present at a minimum in the path through which the continuous fiber 7 passes. Therefore, in the mold 4, the guide pin 6 may be provided at at least one of the end portions located on both sides in the arrow C direction. In this case, the guide pins 6 need to be alternately provided on the left and right in FIG. 23 along the path of the continuous fiber 7. For the same reason, the guide pin 6 through which the continuous fiber 7 does not pass may not be present in FIG. However, as described above, when the continuous fiber 7 is extended from the piece 51 side in the direction of arrow C, it is preferable that the continuous fiber 7 is folded back by the guide pin 6 instead of the piece located at the end of the mold 4. Therefore, it is preferable that the guide pins 6 are provided at both ends of the mold 4 in the arrow C direction.

  For the second manufacturing method of the present invention, a grid-like body in which only one of the linear longitudinal member 21 and the linear transverse member 31 constituting the grid-like body shown in FIG. 1 is inclined. 1 has been described as an example, but the second manufacturing method of the present invention is similar to the lattice-shaped body shown in FIG. 7 in that the linear vertical member 21 and the linear lateral member 31 that constitute the lattice-shaped body. Both of them can also be used for manufacturing the lattice-like body 1 whose side surfaces are inclined with respect to the vertical direction. In this case, by using a mold provided with guide pins that are arranged at the above-described positions and inclined at the above-described angles at both ends in the direction of arrow D in FIG. When the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle formed by the obtuse angle is obtuse, the continuous fiber is folded back by the guide pin instead of the piece located at the end of the mold.

  Hereinafter, the first manufacturing method and the second manufacturing method of the present invention will be further described by way of examples.

Example 1
In this example, after the vinyl ester resin was poured into the mold 4 shown in FIGS. 12 and 13 (the dimensions of the mold are described in mm in the drawings), the first production method of the present invention was followed. The glass continuous fiber 7 (E-glass roving, filament diameter 20 μm, strand count 2700 tex) is arranged in a zigzag manner as shown in FIG. 17, and a desired amount is arranged on the mold 4 so as to form a lattice shape, and then pressed from above. Then, the glass continuous fiber 7 was impregnated with a vinyl ester resin. In this state, the vinyl ester resin was heat-cured to form a lattice-like body (dimensions of the entire lattice: 16.6 cm × 18.2 cm × 4 cm, lattice dimensions: 0.6 cm × 4 cm × 4 cm, lattice (Tilt angle: 45 degrees). A rectangular parallelepiped test piece (0.6 cm × 4 cm × 15 cm) was cut out from the obtained lattice, and a three-point bending test (JIS K6911) was performed to measure the bending strength and the bending elastic modulus. Here, in the three-point bending test, a load was applied in a direction perpendicular to the surface of the rectangular parallelepiped having the largest area. Moreover, the total light transmittance was measured about the test piece. The results are shown below.
Bending strength: 280 MPa
Flexural modulus: 14 GPa
Total light transmittance: 55%

Example 2
In this example, after the vinyl ester resin was poured into the mold 4 of FIG. 19 (the dimensions of the mold are described in mm in the figure), the glass continuous fiber (E -Glass roving, filament diameter 20 μm, strand count 2700 tex) were arranged in a zigzag pattern along the bridge in a desired amount so as to form a lattice shape, and then pressed from above to impregnate the glass continuous fiber with vinyl ester resin. In this state, the vinyl ester resin was heat-cured to form a louver-shaped lattice-like body as shown in FIG. 5 (total size of the lattice-like body: 16.6 cm × 18.2 cm × 4 cm, lattice size: 0.6 cm × 15 .4 cm × 4 cm, the inclination angle of the lattice: 45 degrees). A rectangular parallelepiped test piece (0.6 cm × 4 cm × 15 cm) was cut out from the lattice-like body obtained in the same manner as in Example 1, and a three-point bending test (JIS K6911) was carried out to obtain bending strength and bending elasticity. The total light transmittance was measured. The results are shown below.
Bending strength: 280 MPa
Flexural modulus: 14 GPa
Total light transmittance: 55%

Example 3
In this example, after pouring a vinyl ester resin into the mold 4 shown in FIGS. 20 to 22, a continuous glass fiber (E-glass roving, filament diameter 20 μm, strand count 2700 tex) according to the second production method of the present invention. Were arranged in a zigzag manner along the piece 5 and arranged in a desired amount so as to form a lattice shape on the mold 4, and then pressed from above to impregnate the glass continuous fiber with the vinyl ester resin. In this state, the vinyl ester resin was heat-cured to form a lattice-shaped body (dimensions of the entire lattice-shaped body: 40.8 cm × 21.5 cm × 2.5 cm, lattice dimensions: 0.6 cm (upper 0.2 mm). 6 cm, lower part 0.5 cm) × 2.5 cm × 2.5 cm, and lattice inclination angle: 45 degrees). A rectangular parallelepiped test piece (0.6 cm × 2.5 cm × 15 cm) was cut out from the obtained lattice-shaped body, and a three-point bending test (JIS K6911) was performed in the same manner as in Example 1 to determine the bending strength and The flexural modulus was measured and the total light transmittance was measured. The results are shown below.
Bending strength: 280 MPa
Flexural modulus: 14 GPa
Total light transmittance: 55%

It is a perspective view of one embodiment of a lattice-like object of the present invention. FIG. 2 is a side perspective view of the lattice-like body of FIG. 1 viewed from the direction of arrow A. FIG. 2 is a side perspective view of the lattice-like body of FIG. 1 as viewed from the direction of arrow B. It is a perspective view of another one Embodiment of the lattice-shaped object of this invention. It is a perspective view of another one embodiment of the lattice-like object of the present invention. It is a perspective view of another one embodiment of the lattice-like object of the present invention. It is a perspective view of another one embodiment of the lattice-like object of the present invention. FIG. 8 is a side perspective view of the lattice-like body of FIG. 7 as viewed from the direction of arrow A. FIG. 8 is a side perspective view of the lattice-like body of FIG. 7 as viewed from the direction of arrow B. It is a top view of another embodiment of the lattice-like object of the present invention. It is a top view of another embodiment of the lattice-like object of the present invention. It is a perspective view of the type | mold used when manufacturing the grid | lattice-like body of FIG. 1 with the 1st manufacturing method of this invention. It is the side view which looked at the type | mold of FIG. 12 from the arrow C direction, and the outer frame of the near side is abbreviate | omitted. It is a figure for demonstrating the procedure which arrange | positions a continuous fiber to the type | mold of FIG. 12, according to the 1st manufacturing method of this invention, and is the top view which looked at the type | mold of FIG. FIG. 15 is a view for explaining a procedure for arranging continuous fibers in the mold of FIG. 12 according to the first manufacturing method of the present invention, similarly to FIG. 14. 13 is a side view of the mold of FIG. 12 as viewed from the direction of arrow C, with the outer frame on the near side omitted. FIG. 15 is a view for explaining a procedure for arranging continuous fibers in the mold of FIG. 12 according to the first manufacturing method of the present invention, similarly to FIG. 14. It is a figure which shows the procedure which arrange | positions a continuous fiber in the type | mold of FIG. 12, and arrangement | positioning of the continuous fiber differs from FIG. It is a perspective view of the type | mold used when manufacturing the grid | lattice-like body of FIG. 5 with the 1st manufacturing method of this invention. It is a perspective view of the type | mold used when manufacturing the grid | lattice-like body of FIG. 1 with the 2nd manufacturing method of this invention. It is the side view which looked at the type | mold of FIG. 20 from the arrow C direction, and the outer frame of the near side is abbreviate | omitted. It is the side view which looked at the type | mold of FIG. 20 from the arrow D direction, and the outer frame of the near side is abbreviate | omitted. It is a figure for demonstrating the procedure which arrange | positions a continuous fiber to the type | mold of FIG. 20 according to the 2nd manufacturing method of this invention, and is the top view which looked at the type | mold of FIG. FIG. 24 is a view similar to FIG. 23, but the procedure for arranging continuous fibers in the mold of FIG. 20 is different from FIG.

Explanation of symbols

1: Lattice-like body 11: Outer frame 20: Linear vertical member (outer frame member)
21: Linear vertical member 30: Linear horizontal member (outer frame member)
31: Linear transverse member 4: Mold 41: Bottom plate 42: Outer frame 5, 51, 52, 510, 511: Piece 6: Guide pin 7, 7 ′, 71, 72: Continuous fiber

Claims (7)

On the plane, a linear vertical member made of fiber reinforced synthetic resin and a linear horizontal member intersect each other to form a lattice shape,
The linear vertical member and the linear horizontal member each have a side surface extending upward from the plane,
At least one side surface of the linear longitudinal member or the linear lateral member is a lattice-shaped body made of fiber-reinforced synthetic resin that is inclined with respect to the vertical direction. After filling the mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction,
The continuous fibers are extended in the arrangement direction of the pieces, and the continuous fibers are folded back in a U-shape with the pieces located at the ends of the mold and extended in the opposite direction, thereby repeating the continuous fibers. Arranging in a lattice shape on the mold, impregnating the continuous fiber with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. Item 2. A method for producing a fiber-reinforced synthetic resin grid-like body according to Item 1. After filling the mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction,
The continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces, and the continuous fiber is folded back in a U-shape with the pieces located at the ends of the mold and is extended in the opposite direction. By arranging the continuous fibers in a lattice shape on the mold,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. Item 2. A method for producing a fiber-reinforced synthetic resin grid-like body according to Item 1. A continuous fiber is extended in the arrangement direction of the pieces in a die formed so that two or more pieces are arranged on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction, and is located at the end of the die. By repeating the continuous fiber folded in a U-shape with a piece and extending in the opposite direction, the continuous fibers are arranged in a lattice shape,
Impregnating the continuous fiber arranged in the lattice shape with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. Item 2. A method for producing a fiber-reinforced synthetic resin grid-like body according to Item 1. After impregnating continuous resin with curable resin,
A continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces in a mold formed so that two or more pieces are arranged in the vertical direction and / or the horizontal direction on the bottom plate, The continuous fibers are arranged in a lattice shape by repeatedly folding the continuous fibers in a U-shape with a piece located at the end of the mold and extending in the opposite direction,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
The continuous fiber is extended from the side where the angle formed between the side surface of the piece and the bottom plate is an acute angle when the continuous fiber is extended in a direction perpendicular to the inclination direction of the side surface of the piece. Item 2. A method for producing a fiber-reinforced synthetic resin grid-like body according to Item 1. Filling the mold formed on the bottom plate so that two or more pieces are arranged in the vertical direction and / or the horizontal direction with a curable resin,
The continuous fibers are extended in the arrangement direction of the pieces, and the continuous fibers are folded back in a U-shape with the pieces located at the ends of the mold and extended in the opposite direction, thereby repeating the continuous fibers. Arranging in a lattice shape on the mold, impregnating the continuous fiber with a curable resin,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, the outer side of the piece located at the end of the mold in the direction perpendicular to the inclination direction of the side surface of the piece, and when viewed from the direction perpendicular to the inclination direction of the side surface of the piece. A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined,
The guide pin is inclined in a direction perpendicular to the inclination direction of the side surface of the piece with respect to the bottom plate so as to be separated from the side surface of the piece whose upper portion is inclined,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle between the side surface of the piece and the bottom plate becomes an obtuse angle, the piece located at the end of the mold The method for producing a lattice-shaped body made of fiber-reinforced synthetic resin according to claim 1, wherein the continuous fibers are folded back by the guide pins. After filling the mold formed by protruding two or more pieces on the bottom plate so as to be arranged in the vertical direction and / or the horizontal direction,
The continuous fiber impregnated with the curable resin is extended in the arrangement direction of the pieces, and the continuous fiber is folded back in a U-shape with the pieces located at the ends of the mold and is extended in the opposite direction. By arranging the continuous fibers in a lattice shape on the mold,
Thereafter, the curable resin is cured to produce a fiber-reinforced synthetic resin lattice,
The piece includes a piece whose side surface is inclined in the vertical direction and / or the horizontal direction with respect to the bottom plate,
On the bottom plate, the outer side of the piece located at the end of the mold in the direction perpendicular to the inclination direction of the side surface of the piece, and when viewed from the direction perpendicular to the inclination direction of the side surface of the piece. A guide pin is provided at a position corresponding to a recess between the pieces whose side surfaces are inclined,
The guide pin is inclined in a direction perpendicular to the inclination direction of the side surface of the piece with respect to the bottom plate so as to be separated from the side surface of the piece whose upper portion is inclined,
The angle formed by the guide pin and the bottom plate in the inclination direction of the side surface of the piece is an angle α (α <90 degrees) that is substantially equal to the angle formed by the side surface of the inclined piece and the bottom plate,
An angle β formed between the guide pin and the bottom plate in a direction perpendicular to the inclination direction of the side surface of the piece is equal to or less than an angle formed between the side surface of the inclined piece and the bottom plate.
When extending the continuous fiber in a direction perpendicular to the inclination direction of the side surface of the piece from the side where the angle between the side surface of the piece and the bottom plate becomes an obtuse angle, the piece located at the end of the mold The method for producing a lattice-shaped body made of fiber-reinforced synthetic resin according to claim 1, wherein the continuous fibers are folded back by the guide pins.

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