JP2021046916A - Reinforced resin pipe, manufacturing method for reinforced resin pipe, magnus thrust generation device, wind power generator, hydraulic power generator and tidal power generator - Google Patents

Abstract

To provide a reinforced resin pipe capable of being manufactured easily and improving strength against buckling deformation.SOLUTION: A reinforced resin pipe 1 comprises: an inner layer 2 formed in a tubular shape and made of a first fiber-reinforced resin; a plurality of core materials 30A each of which is formed in a tile shape and arranged side by side along the outer peripheral surface of the inner layer 2; and an outer layer 4 formed so as to cover the plurality of core materials 30A and made of a second fiber reinforced resin.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reinforced resin pipe, a method for manufacturing the reinforced resin pipe, a Magnus type thrust generator including the reinforced resin pipe as a cylindrical blade, and a wind power generator and a hydroelectric generator using the Magnus type thrust generator. And about tidal power generators.

In recent years, reinforced resin pipes are lightweight and highly workable, so that they are in demand for use in large-diameter fluid transport pipes having a diameter of more than several meters, such as sewage pipes, and structures such as buildings and wind turbines. It has increased.

For example, Patent Document 1 discloses a reinforced plastic tube formed into a tubular shape by spirally winding a woven fabric containing the reinforcing fibers so that the direction of the reinforcing fibers is parallel to the axial direction of the tube. Has been done. In this reinforced plastic pipe, since the reinforcing fibers are arranged parallel to the axial direction of the pipe, the tensile strength in the axial direction of the pipe can be improved.

Japanese Unexamined Patent Publication No. 2007-136997

However, since the reinforced plastic pipe disclosed in Patent Document 1 is a thin-walled pipe, it is likely to buckle and deform when it receives a bending load or a compressive load in the axial direction of the pipe.

As a method for preventing buckling deformation, it is known to adopt a sandwich structure in which a lightweight core material is inserted between an inner layer and an outer layer of a fiber reinforced resin. Therefore, it is conceivable to adopt a sandwich structure for the reinforced plastic tube disclosed in Patent Document 1. In this case, in the production of the reinforced plastic tube, for example, when the core material is wound in a helical shape, the core material undergoes bending deformation, so that the original compressive strength cannot be exhibited. Further, since the core material that can be used for manufacturing the reinforced plastic tube is limited to a thin material that can be wound in a helical shape, it is difficult to secure sufficient strength.

The present invention has been made in view of such circumstances, and is an easy-to-manufacture reinforced resin tube capable of improving the strength against buckling deformation, a method for manufacturing the reinforced resin tube, and a cylindrical blade. It is an object of the present invention to provide a Magnus type thrust generator provided with the reinforced resin pipe, and a wind power generator, a hydroelectric power generator, and a tidal power generator using the Magnus type thrust generator.

The present invention solves the above-mentioned problems, and the reinforced resin tube according to the embodiment of the present invention is
An inner layer made of a first fiber-reinforced resin formed in a tubular shape,
A plurality of core materials, each of which is formed in a tile shape and arranged side by side along the outer peripheral surface of the inner layer,
It is characterized by including an outer layer made of a second fiber reinforced resin formed so as to cover the plurality of core materials.

In addition, in the above-mentioned reinforced resin pipe,
The plurality of core materials are
It is characterized in that it is arranged in a staggered pattern with respect to the circumferential direction of the pipe.

In addition, in the above-mentioned reinforced resin pipe,
Each of the plurality of core materials
A concave curved surface that follows the outer peripheral surface of the inner layer,
It is characterized by having a convex curved surface that imitates the inner peripheral surface of the outer layer.

In addition, in the above-mentioned reinforced resin pipe,
Each of the plurality of core materials
It is made of an anisotropic material having different rigidity depending on the direction, and is characterized in that the rigidity in the direction corresponding to the radial direction of the pipe is arranged to be higher than the rigidity in the other directions.

In addition, in the above-mentioned reinforced resin pipe,
Each of the plurality of core materials
It is characterized by including a honeycomb-shaped wall portion forming a gap portion penetrating along the radial direction of the pipe.

Further, the method for manufacturing a reinforced resin pipe according to an embodiment of the present invention is described.
An inner layer forming step of forming an inner layer by winding the first reinforcing fiber helically around the outer peripheral surface of the core material and impregnating the first reinforcing fiber with the first resin.
A core material arranging step of arranging a plurality of core materials each tiled along the outer peripheral surface of the inner layer side by side.
An outer layer forming step of forming an outer layer by winding the second reinforcing fiber in a helical shape so as to cover the plurality of core materials and impregnating the second reinforcing fiber with the second resin.
It is characterized by including a molding step of curing or solidifying the first resin and the second resin.

Further, in the method for manufacturing the reinforced resin pipe,
The core material arranging step is
The tape members to which the plurality of core materials are temporarily fixed are sequentially fed to the outer peripheral surface of the inner layer, whereby the plurality of core materials are arranged side by side.

Further, the Magnus type thrust generator according to the embodiment of the present invention is
It is characterized in that the reinforced resin tube is provided as a cylindrical blade that generates a magnus force by rotating in a fluid.

Further, the wind power generator, hydroelectric power generator or tidal power generator according to the embodiment of the present invention is characterized in that the above-mentioned Magnus type thrust generator is used.

According to the reinforced resin pipe according to the embodiment of the present invention, a plurality of tile-shaped core materials are arranged and arranged along the outer peripheral surface of the inner layer as a core layer between the inner layer and the outer layer. To. Therefore, a plurality of core materials having a predetermined thickness are arranged between the inner layer and the outer layer without being subjected to bending deformation to realize a sandwich structure, so that the strength against buckling deformation can be improved. .. Further, since the core layer is formed by arranging a plurality of core materials side by side along the outer peripheral surface of the inner layer, a reinforced resin tube can be easily manufactured.

It is a front view which shows the reinforced resin pipe 1A which concerns on 1st Embodiment of this invention. FIG. 5 is a sectional view taken along line AA showing the reinforced resin pipe 1A according to the first embodiment of the present invention. The core material 30A according to the first embodiment of the present invention is shown, (a) is a perspective view, and (b) is a side view. It is a figure which shows the manufacturing method of the reinforced resin pipe 1A which concerns on 1st Embodiment of this invention. It is a front view which shows the reinforced resin pipe 1B which concerns on the 2nd Embodiment of this invention. A core material 30B according to a second embodiment of the present invention is shown, (a) is a perspective view, and (b) is a side view. It is a perspective view which shows the vertical axis type Magnus type wind power generator 10 which concerns on 3rd Embodiment of this invention. It is a front view which shows the schematic structure of the vertical axis type Magnus type wind power generator 10 which concerns on 3rd Embodiment of this invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

(First Embodiment)
FIG. 1 is a front view showing a reinforced resin pipe 1A according to the first embodiment of the present invention. FIG. 2 is a sectional view taken along line AA showing the reinforced resin pipe 1A according to the first embodiment of the present invention. FIG. 3 shows a core material 30A according to the first embodiment of the present invention, (a) is a perspective view, and (b) is a side view.

The reinforced resin tube 1A is a tube made of fiber reinforced resin having a sandwich structure in which a core layer 3 is arranged between an inner layer 2 and an outer layer 4. The reinforced resin pipe 1A is used as a structure such as a large-diameter fluid transport pipe having a diameter of more than several meters, a building, a tunnel, a bridge, a windmill, or the like, such as a sewage pipe.

The inner layer 2 is made of the first fiber reinforced resin and is formed in a tubular shape. The first fiber-reinforced resin is a cured or solidified first resin impregnated in the first reinforcing fiber.

The core layer 3 is made of a plurality of core materials 30A. Each of the plurality of core materials 30A is formed in a tile shape, and the plurality of core materials 30A are arranged and arranged along the outer peripheral surface of the inner layer 2 according to a predetermined allocation pattern, whereby the core layer 3 is arranged. To form.

As shown in FIG. 3, the core material 30A is a plate-shaped member having external dimensions of length L, width W, and thickness T, and is gently curved as a whole. The core material 30A includes a concave curved surface 300 that imitates the outer peripheral surface of the inner layer 2, a convex curved surface 301 that imitates the inner peripheral surface of the outer layer 4, and a first side surface 302 that is arranged in the axial direction D1 of the reinforced resin pipe 1A. It has a second side surface 303 arranged in the circumferential direction D2 of the reinforced resin pipe 1A. The thickness T of the core material 30A corresponds to the thickness of the core layer 3.

When the core material 30A is arranged side by side along the outer peripheral surface of the inner layer 2, the curvature of the concave curved surface 300 is set so that there is no gap between the concave curved surface 300 and the inner layer 2. It is set according to the curvature of the outer peripheral surface of. Further, in order to prevent a gap from being generated between the convex curved surface 301 and the outer layer 4, the curvature of the convex curved surface 301 is set according to the curvature of the inner peripheral surface of the outer layer 4.

As the material of the core material 30A, an anisotropic material or an isotropic material is used. As the anisotropic material, for example, wood such as balsa wood is used. As the isotropic material, for example, a foam such as polyurethane is used.

The anisotropic material is a material having different rigidity depending on the direction, so that the rigidity in the direction corresponding to the radial direction D3 of the reinforced resin tube 1A is higher than the rigidity in the other directions (axial direction D1 and circumferential direction D2). Be placed. When, for example, a balsa material is used as the anisotropic material, the wood fibers contained in the balsa material function as reinforcing fibers, so that the rigidity of the reinforcing fiber direction 304 along the wood fibers is increased. Therefore, as shown in FIG. 3B, the reinforcing fiber direction 304 of the balsa material is oriented in the radial direction D3 of the reinforced resin pipe 1A, and the concave curved surface 300 and the convex curved surface 301 are the end surfaces. Therefore, the core material 30A is arranged so that the stress-strain characteristic becomes higher with respect to the radial direction D3 of the reinforced resin pipe 1A.

As an example of the allocation pattern, the plurality of core materials 30A are arranged in a staggered pattern with respect to the circumferential direction D2 of the reinforced resin pipe 1A, as shown in FIG. This is called a tear joint as a method of allocating tiles, and when the joint is between the side surfaces of the adjacent core material 30A, the joint 31 in the axial direction D1 existing between the second side surfaces 303 is Although continuous, the joints 32 in the circumferential direction D2 existing between the first side surfaces 302 are arranged so as not to be continuous.

The core material 30A may be a flat flat plate that is not curved when the width W is sufficiently smaller than the diameter of the reinforced resin pipe 1A. Further, the core material 30A may be arranged without a gap when arranged along the outer peripheral surface of the inner layer 2, and the shape of the core material 30A may be appropriately changed, or the core material 30A may be allocated. The pattern may be changed as appropriate. When changing the shape of the core material 30A, materials having different shapes may be combined. Examples of the allocation pattern of the core material 30A include, for example, through joints, quarter joints, net allowances, etc., in addition to the above-mentioned tear joints.

The outer layer 4 is made of a second fiber reinforced resin and is formed so as to cover the plurality of core materials 30A. The second fiber-reinforced resin is a cured or solidified second resin impregnated in the second reinforcing fiber. The outer peripheral surface of the outer layer 4 may be provided with a pattern such as unevenness, linearity, or protrusion, or may be surface-treated to prevent deterioration or damage.

As the first reinforcing fiber and the second reinforcing fiber, for example, carbon fiber, glass fiber, synthetic resin fiber, metal fiber and the like are used. The first reinforcing fiber and the second reinforcing fiber are oriented so as to face in any one or more directions. The first reinforcing fiber and the second reinforcing fiber may be made of the same material or different materials.

The first resin and the second resin are thermosetting resins or thermoplastic resins. In the case of a thermosetting resin, it is cured by being heated to a predetermined temperature and formed into an inner layer 2 and an outer layer 4. In the case of a thermoplastic resin, it is heated to a predetermined temperature to soften it, and then cooled to solidify it and form it into an inner layer 2 and an outer layer 4. The first resin and the second resin may be the same material or different materials. Further, for the curing or solidification of the first resin and the second resin, any method such as a method of radiating light having a predetermined wavelength can be adopted in addition to heating.

As the thermosetting resin, for example, an epoxy resin, an unsaturated polyester resin, a phenol resin, a vinyl ester resin and the like are used.

As the thermoplastic resin, for example, nylon resin, polyester resin, ABS resin, acrylic resin, polyethylene resin, polystyrene resin, polyamide resin, polypropylene resin, polyvinyl chloride resin, polycarbonate resin and the like are used.

(Manufacturing method of reinforced resin pipe 1A)
FIG. 4 is a diagram showing a method for manufacturing the reinforced resin pipe 1A according to the first embodiment of the present invention.

In the present embodiment, a case where the reinforced resin pipe 1A is manufactured by using the manufacturing apparatus 5 including the cylindrical mandrel 50 will be described. The mandrel 50 is attached to the apparatus main body (not shown) so as to extend in the horizontal direction in a state where it can rotate about the rotation axis O. An endless steel belt 51 is spirally wound around the mandrel 50, and the surface of the steel belt 51 constitutes the core material 100.

The steel belt 51 sequentially moves in the axial direction of the mandrel 50 as the mandrel 50 rotates, and when it moves to the tip of the mandrel 50, it passes through the inside of the mandrel 50 and is returned to the fixed end of the mandrel 50.

When the manufacturing apparatus 5 having such a configuration rotates the mandrel 50, the steel belt 51 moves in order to the tip of the mandrel 50, so that the inner layer forming step, the core material arranging step, the outer layer forming step, and the outer layer forming step, and , The molding process is carried out continuously. Here, the first resin and the second resin will be described as being thermosetting resins.

First, in the inner layer forming step, the first reinforcing fiber 20 is spirally wound around the surface of the steel belt 51, that is, the outer peripheral surface of the core material 100, and the first resin is applied to the first reinforcing fiber 20. It is impregnated to form the inner layer 2.

The supply form for supplying the first reinforcing fiber 20 may be, for example, supplied in a bundled state such as roving or yarn, or a sheet or woven fabric (cloth) in which the fibers are oriented in one direction or a plurality of directions. ), It may be supplied in a strip shape like a non-woven fabric.

Further, as an impregnation method for impregnating the first reinforcing fiber 20 with the first resin, for example, a tank (impregnated) containing the first resin before winding the first reinforcing fiber 20 around the core material 100. A method of immersing the first reinforcing fiber 20 in a tank) and applying the first resin while winding the first reinforcing fiber 20 around the core material 100, and a prepreg in which the first reinforcing fiber 20 is pre-impregnated with the first resin. Is wound around the core material 100, or the like.

Next, in the core material arranging step, the core layer 3 is formed by arranging a plurality of core materials 30A side by side along the outer peripheral surface of the inner layer 2 according to a predetermined allocation pattern.

For example, the core materials 30A are arranged side by side by using a robot manipulator (not shown) that can hold the core material 30A and place it in a predetermined position.

At this time, the adhesive may be applied to the concave curved surface 300, the first side surface 302, and the second side surface 303 of the core material 30A. Further, an adhesive, a resin or the like may be applied to the joints 31 and 32 after the plurality of core materials 30A are arranged side by side.

Next, in the outer layer forming step, the second reinforcing fiber 40 is spirally wound so as to cover the plurality of core materials 30A, and the second reinforcing fiber 40 is impregnated with the second resin to impregnate the outer layer. Form 4.

The supply form for supplying the second reinforcing fiber 40 may be the same supply form as the first reinforcing fiber 20, or may be a different supply form. Further, the impregnation method for impregnating the second reinforcing fiber 40 with the second resin may be the same impregnation method as the impregnation method for impregnating the first reinforcing fiber 20 with the second resin, or may be a different impregnation method. May be good.

Next, in the molding step, the first resin impregnated in the first reinforcing fiber 20 and the second resin impregnated in the second reinforcing fiber 40 are cured.

Here, the portion where the inner layer 2, the core layer 3 and the outer layer 4 are laminated is inserted into the curing furnace 52 and heated to a predetermined temperature to cure the first resin and the second resin.

In the molding step, the first resin and the second resin may be cured separately. For example, after the inner layer forming step or the core material arranging step, the first resin is cured and after the outer layer forming step. , The second resin may be cured. Further, the first resin and the second resin may be heated by a heating means such as a heater built in the mandrel 50.

As described above, the reinforced resin pipe 1A is formed by continuously performing a series of steps.

According to the reinforced resin pipe 1A according to the present embodiment, a plurality of tile-shaped core materials 30A are arranged along the outer peripheral surface of the inner layer 2 as the core layer 3 between the inner layer 2 and the outer layer 4. Is placed. Therefore, a plurality of core materials 30A having a predetermined thickness T are arranged between the inner layer 2 and the outer layer 4 without being subjected to bending deformation to realize a sandwich structure, so that the strength against buckling deformation is improved. can do.

Further, since the core layer 3 is formed by arranging a plurality of core materials 30A side by side along the outer peripheral surface of the inner layer 2, the reinforced resin tube 1A can be easily manufactured.

At that time, the plurality of core materials 30A are arranged in a staggered pattern with respect to the circumferential direction D2 of the reinforced resin pipe 1A. Therefore, since the joints 32 are arranged so as not to be continuous with respect to the circumferential direction D2 of the reinforced resin pipe 1A, the strength against buckling deformation can be improved at an arbitrary position of the reinforced resin pipe 1A with respect to the axial direction D1. ..

Further, each of the plurality of core materials 30A has a concave curved surface 300 that imitates the outer peripheral surface of the inner layer 2 and a convex curved surface 301 that imitates the inner peripheral surface of the outer layer 4. Therefore, since the core material 30A is formed in close contact with the inner layer 2 and the outer layer 4, the strength against buckling deformation can be improved.

Further, each of the plurality of core materials 30A is composed of an anisotropic material having different rigidity depending on the direction, and the rigidity in the direction corresponding to the radial direction D3 of the reinforced resin tube 1A (reinforcing fiber direction 304) is in the other direction. It is arranged so that it is higher than the rigidity of. Therefore, the stress-strain characteristic becomes higher in the radial direction D3 of the reinforced resin tube 1A, so that the strength against buckling deformation can be improved.

(Second embodiment)
FIG. 5 is a front view showing the reinforced resin pipe 1B according to the second embodiment of the present invention. 6A and 6B show a core material 30B according to a second embodiment of the present invention, where FIG. 6A is a perspective view and FIG. 6B is a side view.

In the reinforced resin pipe 1A according to the first embodiment, the core material 30A has been described as being a plate-shaped member. On the other hand, in the reinforced resin pipe 1B according to the second embodiment, the core material 30B includes a honeycomb-shaped wall portion 305 forming a gap portion 306 penetrating along the radial direction D3 of the reinforced resin pipe 1B. The shape of the core material 30B is changed. Since other basic configurations and manufacturing methods are common to the first embodiment, the parts different from the first embodiment will be mainly described.

The core material 30B includes a honeycomb-shaped wall portion 305 that stands upright in the radial direction D3 of the reinforced resin pipe 1A when arranged on the outer peripheral surface of the inner layer 2, and a plurality of gap portions 306 surrounded by the wall portion 305. Have. Therefore, the cross-sectional shape of the wall portion 305 with respect to the radial direction D3 of the reinforced resin pipe 1A forms a hexagonal honeycomb structure. Further, the gap portion 306 is a cell space penetrating between the concave curved surface 300 and the convex curved surface 301.

As shown in FIG. 6A, the core material 30B is formed so that the adjacent core materials 30B mesh with each other without a gap without lacking the hexagonal shape. Therefore, when the plurality of core materials 30B are arranged side by side along the outer peripheral surface of the inner layer 2, the wall portion 305 is arranged without a gap as shown in FIG.

The shape of the honeycomb structure is not limited to a hexagon, and may be, for example, a triangle, a quadrangle, a circle, or a combination of a plurality of polygons. Further, although the core material 30B shown in FIG. 6A has 18 gaps 306, the number of gaps 306 may be changed as appropriate.

According to the reinforced resin pipe 1B according to the present embodiment, the plurality of core materials 30B include a honeycomb-shaped wall portion 305 forming a gap portion 306 penetrating along the radial direction D3 of the reinforced resin pipe 1B. Therefore, since the reinforced resin pipe 1B is covered with the honeycomb-shaped wall portion 305 over the circumferential direction D2 of the reinforced resin pipe 1B, the strength against buckling deformation can be improved.

(Third Embodiment)
FIG. 7 is a perspective view showing a vertical axis type Magnus type wind power generator 10 according to a third embodiment of the present invention. FIG. 8 is a front view showing a schematic configuration of a vertical axis type Magnus type wind power generator 1 according to a third embodiment of the present invention.

The Magnus type thrust generator includes the reinforced resin tubes 1A and 1B according to the first or second embodiment as the cylindrical blade 13 that generates a Magnus force by rotating in a fluid. The vertical axis type Magnus type wind power generator 10 according to the present embodiment is one of the application examples of the Magnus type thrust generator.

The vertical axis type Magnus type wind generator 10 includes a support housing 11 installed on the installation surface S, a generator 110 and a speed increaser 111 arranged inside the support housing 11, and a speed increaser 111. A rotation support portion 12 that is connected to the generator 110 via the above and is rotatable about the first rotation axis O1 that is perpendicular to the installation surface S, and a second rotation support portion that is parallel to the first rotation axis O1. Three cylindrical blades 13 that can rotate around the rotation axis O2 of 2 and a rectifying plate that is arranged so as to be parallel to the second rotation axis O2 at a position separated from the cylindrical blade 13 by a predetermined distance. 14 and each of the three cylindrical blades 13 can be rotated around the first rotation axis O1 by being fixed to the rotation support portion 12, and each of the three cylindrical blades 13 is placed on the circumference centered on the first rotation axis O1. A cylindrical blade support portion 15 that supports the shaft is provided.

Each of the three cylindrical blades 13 is composed of the reinforced resin pipes 1A and 1B according to the first or second embodiment. The cylindrical blade 13 is pivotally supported by the upper rotation transmission shaft portion 130A and the lower rotation transmission shaft portion 130B respectively arranged coaxially with the second rotation shaft O2, and the rotation is connected to the lower rotation transmission shaft portion 130B. It is rotated about the second rotation shaft O2 by the drive unit 131.

The straightening vane 14 has, for example, a plate-like shape, and is rotatably supported by a cylindrical blade support portion 15 about a first rotation shaft O1. Further, the straightening vane 14 is arranged at a position opposite to the traveling direction of the cylindrical blade 13 when the cylindrical blade 13 moves clockwise on the circumference centered on the first rotation axis O1.

The vertical axis type Magnus wind generator 10 having the above configuration winds from a predetermined direction in a state where the cylindrical blade 13 is rotated (rotated) clockwise around the second rotation axis O2 by the rotation drive unit 131. Upon receiving (air flow), a magnus force is generated on the cylindrical blade 13. Then, the magnus force generated in the cylindrical blade 13 acts in the direction of moving the cylindrical blade 13 clockwise around the first rotation axis O1. As a result, the rotation support portion 12 rotates clockwise, so that the generator 110 connected to the rotation support portion 12 generates electricity.

As another application example of the Magnus type thrust generator, for example, the Magnus type thrust generator may be applied to the wind turbine rotation device by connecting the rotation support portion 12 to a rotating machine such as a pump. In addition, by using water flow, waves, tidal current, etc. instead of using wind (air flow) as the energy source of the Magnus type thrust generator, the Magnus type thrust generator can be used as a hydroelectric generator or a tidal power generator. It may be applied, and further, by connecting the rotation support portion 12 to a rotating machine such as a pump, the Magnus type thrust generator may be applied to a hydraulic rotating device or a tidal force rotating device.

As described above, according to the Magnus type thrust generator according to the present embodiment, the cylindrical blade 13 includes the reinforced resin tubes 1A and 1B according to the first or second embodiment. Therefore, even when a bending load or the like is applied to the axial direction of the cylindrical blade 13 (second rotation axis O2), the cylindrical blade 13 is not easily deformed, so that the rigidity and durability of the Magnus type thrust generator are improved. be able to.

(Other embodiments)
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be appropriately modified without departing from the technical idea of the present invention.

For example, in the first embodiment, the inner layer 2 is formed by winding the first reinforcing fiber 20 in a helical shape in the inner layer forming step, and the outer layer 4 is formed by winding the first reinforcing fiber 20 in a helical shape, and the outer layer 4 is formed in the outer layer forming step. It has been described as being formed by winding the reinforcing fibers 40 of the above in a helical shape. On the other hand, the inner layer 2 may be a stack of a plurality of layers by winding a plurality of first reinforcing fibers 20 in a helical shape in the inner layer forming step, or the outer layer 4 may form an outer layer. In the step, a plurality of layers may be laminated by winding the plurality of second reinforcing fibers 40 in a helical shape. In that case, the plurality of first reinforcing fibers 20 may be laminated so as to intersect the orientations, or the plurality of second reinforcing fibers 40 may be laminated so as to intersect the orientations. Good.

Further, in the first embodiment, the plurality of core materials 30A have been described as being arranged by a robot manipulator in the core material arrangement step. On the other hand, in the core material arranging step, the plurality of core materials 30A are continuously supplied to the outer peripheral surface of the inner layer 2 in a state of being temporarily fixed to the tape member so that they are sequentially arranged. You may.

Specifically, the tape member is wound in a roll shape in a state where a plurality of core materials 30A are arranged in one row or a plurality of rows in a supply direction (long direction) of the tape member and temporarily fixed. With the rotation of 50, the inner layer 2 is sequentially sent out to the outer peripheral surface. Then, the plurality of core materials 30A are arranged and arranged along the outer peripheral surface of the inner layer 2 by being separated from the tape member in order from the one adhered to the outer peripheral surface of the inner layer 2. Further, when the tape member is composed of a tape member containing reinforcing fibers, the outer layer 4 is formed by winding the tape member in a helical shape while temporarily fixing the plurality of core materials 30A. It may also be used as the reinforcing fiber 40.

Further, in the first and second embodiments, the cross-sectional shapes of the reinforced resin pipes 1A and 1B have been described as being circular as shown in FIG. 2, but the cross-sectional shapes of the reinforced resin pipes 1A and 1B have been described. May be polygonal. In that case, the shapes and allocation patterns of the core materials 30A and 30B may be changed as appropriate.

1A, 1B ... Reinforced resin pipe, 2 ... Inner layer, 3 ... Core layer, 4 ... Outer layer,
5 ... Manufacturing equipment, 10 ... Vertical axis type Magnus type wind power generator, 11 ... Support housing,
12 ... Rotational support, 13 ... Cylindrical blade, 14 ... Straightening plate, 15 ... Cylindrical blade support,
20 ... 1st reinforcing fiber, 30A, 30B ... core material, 31, 32 ... joint,
40 ... second reinforcing fiber, 50 ... mandrel, 51 ... steel belt,
52 ... Hardening furnace, 100 ... Core material, 110 ... Generator, 111 ... Accelerator,
130A ... upper rotation transmission shaft, 130B ... lower rotation transmission shaft,
131 ... Rotational drive unit, 300 ... Concave curved surface, 301 ... Convex curved surface,
302 ... 1st side surface, 303 ... 2nd side surface, 304 ... Reinforcing fiber direction,
305 ... wall part, 306 ... gap part,
D1 ... axial direction, D2 ... circumferential direction, D3 ... radial direction

Claims (9)

An inner layer made of a first fiber-reinforced resin formed in a tubular shape,
A plurality of core materials, each of which is formed in a tile shape and arranged side by side along the outer peripheral surface of the inner layer,
It includes an outer layer made of a second fiber reinforced resin formed so as to cover the plurality of core materials.
Reinforced resin pipe characterized by that. The plurality of core materials are
Arranged in a staggered pattern with respect to the circumferential direction of the pipe,
The reinforced resin pipe according to claim 1, wherein the reinforced resin pipe is characterized in that. Each of the plurality of core materials
A concave curved surface that follows the outer peripheral surface of the inner layer,
It has a convex curved surface that imitates the inner peripheral surface of the outer layer.
The reinforced resin pipe according to claim 1 or 2, wherein the reinforced resin pipe is characterized in that. Each of the plurality of core materials
Claims 1 to 1, wherein the material is made of an anisotropic material having different rigidity depending on the direction, and is arranged so that the rigidity in the direction corresponding to the radial direction of the pipe is higher than the rigidity in other directions. The reinforced resin tube according to any one of claims 3. Each of the plurality of core materials
A honeycomb-shaped wall portion forming a gap portion penetrating along the radial direction of the pipe is provided.
The reinforced resin pipe according to any one of claims 1 to 4, wherein the reinforced resin pipe is characterized in that. An inner layer forming step of forming an inner layer by winding the first reinforcing fiber helically around the outer peripheral surface of the core material and impregnating the first reinforcing fiber with the first resin.
A core material arranging step of arranging a plurality of core materials each tiled along the outer peripheral surface of the inner layer side by side.
An outer layer forming step of forming an outer layer by winding the second reinforcing fiber in a helical shape so as to cover the plurality of core materials and impregnating the second reinforcing fiber with the second resin.
A molding step of curing or solidifying the first resin and the second resin.
A method for manufacturing a reinforced resin pipe. The core material arranging step is
The reinforced resin tube according to claim 6, wherein the plurality of core materials are arranged side by side by sequentially feeding out tape members to which the plurality of core materials are temporarily fixed to the outer peripheral surface of the inner layer. Manufacturing method. The reinforced resin tube according to any one of claims 1 to 5 is provided as a cylindrical blade that generates a magnus force by rotating in a fluid.
A Magnus-type thrust generator characterized by this. The Magnus thrust generator according to claim 8 is used.
A wind power generator, a hydroelectric power generator or a tidal power generator characterized in that.

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