JP2013028029A - High-strength fiber wire material for reinforcing wooden member, and joint structure of wooden member using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-strength fiber wire material for reinforcing a wooden member, and a joint structure of the wooden member using the high-strength fiber wire material that can exhibit the excellent tensile strength of high-strength fiber yarn and improve strength against bending.SOLUTION: The high-strength fiber wire material 1 for reinforcing the wooden member includes a core wire 2 made of a high-strength fiber bundle 5 obtained by bundling the high-strength fiber yarn 4 while adjusting the fiber direction without entanglement, and a restraining member 3a wound around the core wire 2 to bind it in the exposed state of the peripheral surface of the core wire 2 as an adhesive surface to the other wooden member using an adhesive. The restraining member 3a binds the core wire 2 so that the high-strength fiber yarn 4 does not come apart from the outer peripheral surface. The restraining member 3a may be a coarse braised string (solidly forged) or a coarse round braided string. A flexible material is preferably used for the restraining material 3a, and synthetic fiber such as polyester, nylon or vinylon, reclaimed fiber such as rayon, semi-synthetic fiber such as acetate, or natural fiber such as silk, wool, hemp or cotton may be used for the restraining material 3a.

Description

  The present invention relates to a high-strength fiber wire for reinforcing a wooden member formed by a core wire made of a carbon fiber bundle and a joining structure of a wooden member using the same.

  Various materials have been used as reinforcing materials to improve tensile strength and strength against bending, but in particular, carbon fiber yarn has excellent tensile strength. Seems to spread.

However, carbon fiber yarns, except for some parts of airplane structures, fishing rods, tennis rackets, etc., are not practically used and cannot be said to be utilized. One reason is that carbon fiber yarns are manufactured and shipped as 6000, 12K, 24K, etc. as bundles of 6000, 12000, and 24,000 carbon fibers. Because it is difficult to handle because the carbon fiber bundle can be broken or the carbon fiber yarn is broken by a slight impact or vibration if it is bound only with a light binding force by a chemical called a chemical agent. is there.
Therefore, conventionally, carbon fiber bundles such as 6K, 12K, and 24K are used as woven fabrics (see, for example, Patent Document 1).

JP 2010-284343 A

Depending on the application, the carbon fiber yarn can be used in the woven state, but in the woven state, when it is pulled, a shearing force is applied at the entanglement point between the carbon fiber yarns. Cannot be obtained.
Therefore, after covering the entire peripheral surface of the carbon fiber bundle bundled with the fiber direction of the carbon fiber yarn with other fibers, solidifying with an adhesive and integrating them, the entanglement point between the carbon fiber yarns that become weak parts It is conceivable to improve the strength by using no carbon fiber wire.

  However, when such a carbon fiber wire is sandwiched between the laminaes constituting the laminated material and the strength against bending is measured as a wooden product fixed with a fixing adhesive, the carbon fiber bundle and the entire surrounding surface are covered. At the interface with the other fiber or with the adhesive sandwiched between other fibers and the lamina, the tensile force cannot be endured and peeling occurs, resulting in a state where the laminated material and the carbon fiber bundle are not bonded. End up. As a result, the strength of the wooden product against bending cannot be improved as expected.

  Such a problem is not limited to carbon fiber yarns, but fibers called high strength fibers such as basalt fiber yarns and aramid fiber yarns are bundled by aligning the fiber directions to form a high strength fiber bundle. The same applies to a high-strength fiber wire by covering the entire peripheral surface of the bundle with other fibers. Therefore, there is a demand for a technique that can effectively utilize the excellent characteristics of high-strength fiber yarns.

  Therefore, the present invention provides a high-strength fiber wire for reinforcing a wooden member capable of exerting excellent tensile strength of a high-strength fiber yarn and improving the strength against bending, and a joining structure of a wooden member using the same. The purpose is to provide.

  The high-strength fiber wire for reinforcing a wooden member of the present invention includes a core wire obtained by bundling high-strength fiber yarns without aligning the fiber direction and an adhesive for fixing the peripheral surface of the core wire to another wooden member. And a restraining material that is wound around and bound around the core wire in a state of being exposed as an adhesive surface.

  According to the high-strength fiber wire for reinforcing a wooden member of the present invention, the core wire is a bundle of high-strength fiber yarns that are bundled together without being entangled with each other. Since there is no point, high proof stress can be exhibited. In addition, the constraining material binds the core wire by winding the periphery of the core wire in a state in which the peripheral surface of the core wire is exposed as an adhesive surface with an adhesive for fixing to another wooden member. The bonding surface can be made to adhere to the bonding surface of another wooden member with a fixing adhesive interposed therebetween. Therefore, when a bending force is applied, only the restraint material is peeled off from the core wire in a state of being bonded to other wooden members, or the restraint material is peeled off from the wooden member in a state of being bonded to the core wires. Therefore, the strength against bending can be improved.

  The constraining material is preferably made of fibers other than the high-strength fiber yarns and having higher shear resistance than the high-strength fiber yarns. Even if the binding material is wound around the core wire to bind the core wire, it is difficult to cut because the shearing force is higher than that of the high strength fiber yarn. In addition, the core wire itself can be prevented from falling apart. The fibers other than the high-strength fiber yarns used in the restraining material here may be those having higher shear resistance than the high-strength fiber yarns used in the core wire, and those having such performance may be used. For example, a high-strength fiber thread may be used as a restraining material.

  The constraining material is preferably knitted in a braided or knitted string shape with the core wire as the center. By doing so, it is possible to bind the core wire by winding the restraining material around the core wire in a state where the peripheral surface of the exposed core wire is secured as the adhesive surface.

  It is desirable that the peripheral surfaces of the restraining material and the core wire are hardened by a solidifying agent. By doing so, the constraining material can be integrated with the core wire, so that the core wire itself can be further prevented from being separated. Moreover, since the shape maintenance property of the whole high strength fiber wire improves, workability | operativity can be improved when inserting a high strength fiber wire into a hole.

  Moreover, the high strength fiber wire for reinforcing a wooden member of the present invention is obtained by impregnating and curing a high strength fiber yarn by impregnating a solidifying agent on a peripheral surface of a core wire bundled without aligning the fiber directions. High-strength fiber yarns are bundled, and the peripheral surface of the core wire is an adhesive surface with an adhesive for fixing to another wooden member.

  According to this invention, since the core wire is a high-strength fiber bundle that is bundled without aligning the fiber directions of the high-strength fiber yarn, there is no entanglement point between the high-strength fiber yarns that become weak portions. High proof stress can be exhibited. In addition, the peripheral surface of the core wire is hardened by impregnating a solidifying agent, and is not covered with another fiber as a restraining material for binding the core wire, so that a fixing adhesive is interposed with the peripheral surface of the core wire as an adhesive surface. And can be in a state of being adhered to another wooden member. Therefore, when a bending force is applied, it is possible to reduce peeling from the core wire in a state where the restraining material is bonded to another wooden member, and peeling from the wooden member in a state where the restraining material is bonded to the core wire. Therefore, the strength against bending can be improved.

The joining structure of the wood member of the present invention includes the high-strength fiber wire for reinforcing a wooden member of the present invention as a reinforcing material, and is interposed between the first wooden member and the second wooden member together with a fixing adhesive. The first wooden member and the second wooden member are joined together.
In the joining structure of the wooden member of the present invention, the high strength fiber wire for reinforcing the wooden member of the present invention is interposed between the first wooden member and the second wooden member as a reinforcing material together with the fixing adhesive. Therefore, the tensile strength and bending strength of the first wooden member and the second wooden member can be improved.

  As the fixing adhesive, resorcinol resin, phenol resorcinol resin, phenol resin, α-olefin resin, epoxy resin, acrylic resin, vinyl acetate resin, aqueous polymer-isocyanate resin, etc. can be used as appropriate. It is desirable to use a phenol-modified resorcinol resin as a main component. Since the resorcinol resin or the phenol-modified resorcinol resin has a high affinity with the wooden member and the high strength fiber yarn, the adhesion can be further improved.

  In the present invention, since the core wire is firmly bonded to the wooden member, the peel resistance between the core wire and the restraint material can be improved, so that the excellent tensile strength of the high strength fiber yarn can be exhibited, The strength against bending of a wooden member such as a laminated material can be improved.

It is a figure which shows the high strength fiber wire which concerns on Embodiment 1 of this invention. It is a figure which shows the 1st modification of the high strength fiber wire of Embodiment 1 of this invention. It is a figure which shows the 2nd modification of the high strength fiber wire of Embodiment 1 of this invention. (A)-(C) is a figure which shows the state which bound the core wire of the high strength fiber wire shown in FIGS. 1-3 with the bundling material with the solidifying agent. It is a figure which shows the high strength fiber wire which concerns on Embodiment 2 of this invention. It is a figure for demonstrating the manufacturing method of the high strength fiber wire shown in FIGS. It is a figure for demonstrating the joining structure of the wooden member which concerns on Embodiment 3 of this invention, and the laminated material which has the joining structure which bonded together lamina using the high strength fiber wire shown in FIGS. 1-5 as a reinforcing material It is a perspective view which shows an example. It is a disassembled perspective view of the laminated material shown in FIG. It is a figure for demonstrating the groove shape which cut the lamina, (A) is a figure which shows the case where the cross section of a groove | channel is circular arc shape, (B) is a figure which shows the case where it is a rectangular shape. It is a flowchart for demonstrating each process of the manufacturing method of the laminated material shown in FIG. It is a figure for demonstrating the joining structure of the wooden member which concerns on Embodiment 4 of this invention, and is a rod-shaped member which has the joining structure which bonded together lamina using the high strength fiber wire shown in FIGS. 1-5 as a reinforcing material It is a perspective view which shows an example. It is a photograph which shows the carbon fiber wire produced as an Example. It is a figure which shows the modification of the joining structure of the wooden member shown in FIG. It is a figure for demonstrating the joining structure of the wooden member which concerns on Embodiment 5 of this invention, and is a rod-shaped member which has the joining structure which bonded together the wooden member by using the high strength fiber wire shown in FIGS. 1-5 as a reinforcing material It is a perspective view which shows an example. It is a disassembled perspective view of the rod-shaped member shown in FIG. It is a flowchart for demonstrating each process of the manufacturing method of the laminated material shown to FIG. 14 and FIG. It is a figure for demonstrating the joining structure of the wooden member which concerns on Embodiment 6 of this invention, and joining which has a joining structure which joined the beam and the column using the high strength fiber wire shown in FIGS. 1-5 as a reinforcing material It is a perspective view for demonstrating a part.

[High-strength fiber wire for reinforcing wooden members]
(Embodiment 1)
A high-strength fiber wire for reinforcing a wooden member according to an embodiment of the present invention (hereinafter simply abbreviated as a high-strength fiber wire) will be described with reference to the drawings.
As shown in FIG. 1, the high-strength fiber wire 1a is comprised by the core wire 2 and the restraint material 3a.
The core wire 2 is formed by a high strength fiber bundle 5 in which high strength fiber yarns 4 are bundled without aligning the fiber directions.
As the high-strength fiber yarn 4, a fiber also called a super fiber can be used. Examples of the high-strength fiber yarn 4 include carbon fiber, basalt fiber, para-aramid fiber, meta-aramid fiber, ultrahigh molecular weight polyethylene fiber, polyarylate fiber, PBO (polyparaphenylene benzoxazole) fiber, polyphenylene sulfide (PPS). ) Fiber, polyimide fiber, fluorine fiber, polyvinyl alcohol (PVA fiber) and the like can be used.

The high-strength fiber bundle 5 may be one obtained by using the above-mentioned high-strength fiber yarns alone, mixing a plurality of them, or mixing other yarns made of organic fibers as long as their strength and bendability are not impaired. The high-strength fiber bundle 5 is usually a thread-like body having a circular or flat cross section in which thousands to tens of thousands of high-strength fiber threads 4 are bundled. The high-strength fiber yarn 4 constituting the high-strength fiber bundle 5 is a carbon fiber yarn or a basalt fiber yarn. Since the tensile strength decreases when twisted, the high-strength fiber yarn (filament) By not twisting and not twisting the entire high-strength fiber bundle, it is in a state substantially equivalent to untwisted yarn. In order to obtain high-strength fiber yarns and high-strength fiber bundles that are not twisted, ones that are aligned so that the high-strength fiber yarns are not twisted from the spinning stage are used.
The high-strength fiber bundle 5 constituting the core wire 2 may be impregnated with a sizing agent or a sizing agent to such an extent that the peripheral surface of the core wire 2 is not hindered from functioning as an adhesive surface.

If the high-strength fiber yarn 4 is a carbon fiber yarn, any PAN-based or pitch-based carbon fiber yarn can be used. Among these, a PAN-based carbon fiber yarn is preferable from the viewpoint of a balance between strength and elastic modulus of the obtained molded product.
In addition, the carbon fiber bundles obtained by bundling the carbon fiber yarns are 6,000 (6K), 12,000 (12K), and 24,000 (24K) carbon fiber yarns supplied from a carbon fiber manufacturer according to the required strength. One or a plurality of bundles can be used.

The constraining material 3a binds the core wire 2 so that the high-strength fiber yarn 4 does not fall apart from the peripheral surface in a state where the peripheral surface of the core wire 2 is exposed as an adhesive surface with an adhesive for fixing to another wooden member. It is.
In the first embodiment, a braided restraining material 3a is formed by winding a fiber serving as the restraining material 3a around the core wire 2 and assembling a coarse braided string (round punching). ing. In addition, as shown in FIG. 2, the binding material 3b is a braided string-like binding material 3b by winding a fiber to be the binding material 3b around the core wire 2 and knitting a circular circular knitting with a coarse mesh. It can also be.
The restraining materials 3a and 3b are preferably flexible, and synthetic fibers such as polyester, nylon, and vinylon, regenerated fibers such as rayon, semi-synthetic fibers such as acetate, and natural fibers such as silk, wool, hemp, and cotton. Can be used.
The constraining material 3a may be crossed at a pitch of 0.5 mm to 30 cm with respect to the length direction of the core wire 2, and particularly preferably 1 cm to 10 cm.

Here, the ratio that the constraining material covers the core wire 2 will be described.
The coverage of the core wire 2 is the ratio of the area which a restraint material occupies with respect to the area of the whole surrounding surface of a high strength fiber wire. When the constraining material is uniformly arranged on the peripheral surface of the core wire 2, the coverage is obtained by imaging the high strength fiber wire from the side, the area of the entire high strength fiber wire from the captured image, It can be calculated by measuring the area occupied by the material and calculating according to the following equation.
Coverage rate (%) = (area occupied by restraint material) / (area of the entire high-strength fiber wire) × 100

  It is desirable that the coverage ratio calculated in this way is small because the area where the fixing adhesive adheres to the peripheral surface of the core wire 2 and functions as an adhesive surface is widened. In particular, it is 70% or less from the viewpoint of improving the adhesive strength between the laminated materials using the high strength fiber wire 1a. More preferably, it is 50% or less, More preferably, it is 30% or less. The lower limit of the covering ratio can be set to the lowest value at which the high-strength fiber yarns 4 constituting the core wire 2 are not separated and can maintain a string shape or a rod shape.

This high-strength fiber wire 1a can be manufactured as follows.
A required number of high-strength fiber bundles 5 are pulled out from the creel and bundled to form the core wire 2. This core wire 2 is passed through the center of the string making machine. And a braid with a coarse mesh is formed on the peripheral surface of the core wire 2 by the binding material 3a by the stringing machine. By doing so, the braid-like restraining material 3a is formed on the peripheral surface of the core wire 2, and the core wire 2 is bound so as not to be separated into a long high-strength fiber wire 1a, which is wound around a drum or the like. Can do. Since the high-strength fiber wire 1a is obtained by simply binding the flexible core wire 2 with the restraining material 3a, it can be easily wound around a drum or the like. Therefore, movement and storage are easy.

  In addition, when making a restraint material into a braided string shape, it can be set as the restraint material 3b as shown in FIG. 2 by forming the knitted material in the surrounding surface of the core wire 2 through the center of a circular knitting machine. It is.

  In addition, the high-strength fiber wire may be bundled so that the high-strength fiber yarns 4 are not separated apart from the braided braid or braid, so that the high-strength fiber wire 1c as shown in FIG. As a restraining material for binding the core wires 2, a restraining material 3 c in which rubber rings arranged at predetermined intervals, fibers mentioned in the restricting materials 3 a and 3 b, etc., are arranged at predetermined intervals can be used.

  In the core wire 2 shown in FIGS. 1 to 3, in addition to impregnating with a sizing agent or a bundling agent and binding, as shown in FIGS. 4 (A) to (C), the high strength fiber yarn 4 is In order to bind more firmly, the core wire 2 bound by the restraining materials 3a to 3c can be impregnated with a solidifying agent, and the core wire 2 can be cured together with the restraining materials 3a to 3c. By doing so, the core wire 2 and the restraining materials 3a-3c can be firmly integrated into a rod-like body. In this case, the high-strength fiber wires 1d to 1f can be moved and stored in a state of being cut to a length of about several centimeters to several meters. The high-strength fiber wires 1d to 1f in which the core wire 2 is firmly integrated are used as a reinforcing material when manufacturing a wooden product, when placed in a narrow groove or when inserted into a deep hole, etc. Moreover, since it does not lose its shape, it can be easily arranged.

As the solidifying agent that can be used, either a thermoplastic resin or a thermosetting resin may be used, but in order to provide variability, a thermoplastic resin is preferably used. Further, it is desirable to use a solidifying agent having a high affinity with the fixing adhesive and the high strength fiber yarn.
Preferred examples include polyetheretherketone (PEEK), polypropylene, polyethylene, polystyrene, polyamide (nylon 6, nylon 66, nylon 12, nylon 42, etc.), ABS resin, acrylic resin, vinyl chloride resin, vinylidene chloride resin. , Polyphenylene oxide, polybutylene terephthalate, polyethylene terephthalate, polysulfone, polyethersulfone, polyetherimide, polyarylate, epoxy resin, urethane resin, polycarbonate resin, resorcinol resin, and the like, but are not limited thereto.

  Among these, polyether ether ketone (PEEK), acrylic resin, vinyl chloride resin, vinylidene chloride resin, polyethylene resin, epoxy resin, urethane resin, polycarbonate resin, and resorcinol resin are preferable from the viewpoint of durability against acids and alkalis.

The method of coating the above-described resin on the core wire 2 is not particularly limited, such as coating the resin on the high-strength fiber with a spray or a brush, but from the viewpoint of productivity, a dip-nip method or further using a die is used. An apparatus as shown in FIG.
In the case where a thermoplastic resin is coated as the resin, when a device as shown in FIG. 6 is used, the high-strength fiber bundle (core wire 2) supplied from the creel 7a is passed through a stringing machine (not shown). Or forming the restraint material 3 by passing it through a circular knitting machine (not shown), and then immersing it in a thermoplastic resin melted or dissolved in a solvent, or an emulsion containing a thermoplastic resin, and then as required. Accordingly, the coating is performed by squeezing with a mangle, removing excess thermoplastic resin, adjusting the wire diameter with a die 7b, and then drying and curing in a heating furnace 7c as necessary. Then, if the dried and hardened material is cut into a predetermined length by the cutting machine 7d, it can be moved and stored in the cut state.

(Embodiment 2)
Next, the high strength fiber wire according to Embodiment 2 of the present invention will be described with reference to FIG. In FIG. 5, the same components as those in FIG.
The high-strength fiber wire 1g shown in FIG. 5 is obtained by impregnating the core wire 2 with a solidifying agent so that the peripheral surface of the core wire 2 is an adhesive surface with an adhesive for fixing to another wooden member. They are united.

  The solidifying agent can be used as long as it functions as a restraining material so that the core wire 2 is impregnated and cured, and the high-strength fiber yarns 4 constituting the core wire 2 are not dispersed. Further, since the solidifying agent does not have to be dispersed in the high strength fiber yarns 4, it is not necessary to impregnate until reaching the center of the core wire 2, and the core wire 2 may be impregnated to such an extent that the surface layer is cured. Although it is not necessary to impregnate the solidifying agent until it reaches the center of the core wire 2, the entire core wire 2 may be cured by impregnating the core wire 2.

  As the solidifying agent that can be used, either a thermoplastic resin or a thermosetting resin may be used as in the first embodiment, but a thermoplastic resin can be preferably used in order to provide variability. Further, it is desirable to use a solidifying agent having a high affinity with the fixing adhesive and the high strength fiber yarn. In the case where a thermoplastic resin is coated as the resin, an apparatus as shown in FIG. 6 can be used as in the first embodiment.

Since the 1 g high-strength fiber wire thus configured becomes a rod-like body by a solidifying agent, it can be easily moved and stored in a state of being cut to a length of several centimeters to several meters, and a wooden product is manufactured. When it is used as a reinforcing material, it can be easily placed because it does not lose its shape, such as when placed in a narrow groove or inserted into a deep hole.
In addition, since the solidifying agent functions as a restraining material that binds the core wire 2, the restraining materials 3 a to 3 c shown in FIGS. 1 to 3 can be omitted.

[Wooden products made of laminated lumber]
(Embodiment 3)
A wooden product formed of a laminated material obtained by joining lamina using the high-strength fiber wires 1a to 1g shown in FIGS. 1 to 5 as a reinforcing material will be described with reference to FIGS. The laminated material 100 shown in FIG. 7 and FIG. 8 has a thickness, although the adhesive surfaces are bonded to each other with the opposing surfaces of the four laminaes 100a to 100d being substantially plate-like wooden members as the adhesive surfaces. It is a plate-like member (columnar object). Among the laminaes 100a to 100d, a reinforcing material 1x for reinforcement is disposed between the lamina 100b (first wooden member) and the lamina 100c (second wooden member).
The reinforcing material 1x can be any one of the high-strength fiber wires 1a to 1g shown in FIGS. The lamina 100c is provided with a groove 100e for arranging the reinforcing material 1x.

The groove 100e is provided along the bonding surface of the lamina 100c, and as shown in FIG. 9A, the bottom cross section (the surface orthogonal to the groove length direction) is formed in an arc shape. By making the bottom surface of the groove 100e into an arc shape, the gap between the reinforcing material 1x and the bottom surface becomes substantially uniform, so that the inner surface of the groove 100e and the periphery of the reinforcing material 1x can be evenly bonded. Can be improved. Further, since the gap between the reinforcing material 1x and the bottom surface is reduced, it is possible to reduce the useless adhesive.
In FIG. 9B, the groove 100f can be formed in a rectangular shape.
Furthermore, the groove may be a triangular shape or a polygonal shape that is a pentagon or more. When the cross section of the groove is a regular polygon, it is desirable to have a shape in which one side or a plurality of sides of the regular polygon is opened so that the reinforcing material 1x can be easily arranged.

  The groove 100e may be formed on the lamina 100b side, or may be formed on both the lamina 100b and the lamina 100c, in addition to being formed only on the lamina 100c. It is preferable to form the groove on one of the wooden members of the lamina 100b and the lamina 100c because it is easy in terms of processing.

Next, a method for joining the laminated materials shown in FIGS. 7 and 8 will be described with reference to FIG.
First, the groove 100e is formed in the lamina 100c in the groove cutting process in step S10. If the groove width of the groove 100e is too wide with respect to the thickness of the reinforcing material 1x disposed in the groove 100e, a large amount of fixing adhesive is required. Is desirable.
Next, in the adhesive filling process in step S20, the groove 100e is filled with the fixing adhesive, and the fixing adhesive is brushed or sprayed on the groove forming surface 100g of the lamina 100c where the groove 100e is formed. Apply by showering.
Further, a fixing adhesive is applied to any one or both of the opposing surfaces of the lamina 100a and lamina 100b and the lamina 100c and lamina 100d.
As described above, the fixing adhesive may be a known adhesive such as resorcinol resin, phenol resorcinol resin, phenol resin, α-olefin resin, epoxy resin, acrylic resin, vinyl acetate resin, or aqueous polymer-isocyanate resin. Can be used. In particular, those having high affinity for both the wooden member and the high-strength fiber yarn are preferable. When a carbon fiber yarn is used as the high-strength fiber yarn, a resilcinol resin or a phenol resorcinol resin can be preferably used.

Next, in the reinforcing material arranging step in step S30, the reinforcing material 1x is arranged in the groove 100e that is already filled with the fixing adhesive. Since the fixing adhesive is filled in the groove 100e in advance, even if the groove width is narrow enough to arrange the reinforcing material 1x, air can be prevented from entering between the reinforcing material 1x and the groove 100e. And a sufficient fixing adhesive can be interposed between the reinforcing material 1x and the groove surface of the groove 100e. Therefore, the adhesive force between the reinforcing material 1x and the groove 100e can be ensured.
Next, in the joining process in step S40, the laminated surfaces 100 can be obtained by abutting and pressing the adhesive surfaces of the lamina 100a to the lamina 100d and bonding and laminating the lamina 100d to the lamina 100d.
In this manner, the stacked laminaes 100a to 100d can be joined in a state where the reinforcing material 1x is disposed between the lamina 100b and the lamina 100c.

  In the case where the reinforcing material 1x is made of high-strength fiber wires 1a to 1c as shown in FIGS. 1 to 3, the restraining materials 3a to 3c do not cover the entire core wire 2, and the peripheral surface of the core wire 2 is an adhesive surface. The high-strength fiber yarn 4 exposed as an adhesive surface is bonded to the lamina 100c having the groove 100e with a fixing adhesive interposed therebetween. Further, the adhesive surface of the lamina 100b covering the groove 100e and the reinforcing material 1x are firmly bonded.

  Even if the laminated material 100 bonded in this way is pulled or bent, the core wire 2 is formed of a high-strength fiber wire that is bundled without matching the fiber direction, so that the carbon fiber is particularly used as a high-strength fiber yarn. Even when yarns or basalt fiber yarns are used, there are no twists or entanglement points that are weak parts of these yarns, so that the reinforcing material 1x exhibits high yield strength.

Further, in the reinforcing material 1x made of the high-strength fiber wires 1a to 1c, since the restraining materials 3a to 3c do not cover the entire core wire 2, the exposed bonding surface of the core wire 2 is bonded to the groove surface of the lamina 100c or the lamina 100b. It is possible to secure a wide area to be bonded by interposing a fixing adhesive on the surface.
Accordingly, when the laminated material 100 is bent, a sufficient adhesive force can be secured on the bonding surface of the core wire 2, so that only the restraining materials 3a to 3c are peeled off from the core wire 2 in a state of being bonded to the lamina 100c or the lamina 100b. And the peeling of the restraining materials 3a to 3c from the laminas 100 and 100b is reduced. Therefore, since the lamina 100b and 100c can be made difficult to peel from the core wire 2, the strength against bending of the laminated material can be improved.

  When the reinforcing material 1x is a high-strength fiber wire 1d to 1f obtained by curing the core wire 2 and the restraining materials 3a to 3c as shown in FIG. 4 with a solidifying agent, the core wire 2 passes through a solidifying agent and a fixing adhesive. Adhering to the lamina 100c having the groove 100e. Further, when the core wire 2 as shown in FIG. 5 is a high-strength fiber wire 1g obtained by curing with a solidifying agent, the entire peripheral surface of the core wire 2 is similarly grooved 100e via the solidifying agent and fixing adhesive. Adhering to lamina 100c having Further, the adhesive surface of the lamina 100b covering the groove 100e and the reinforcing material 1x are firmly bonded.

Even if the laminated material 100 bonded in this way is pulled or bent, the core wire 2 is formed of a high-strength fiber wire that is bundled without tangling the fibers, so that carbon fiber is particularly used as a high-strength fiber yarn. Even when fiber yarns or basalt fiber yarns are used, there is no twist or entanglement point that becomes a weak portion of these, so that the reinforcing material 1x exhibits a high yield strength.
In addition, the reinforcing material 1x that is the high-strength fiber wire 1g can be in a state where the entire peripheral surface of the reinforcing material 1x is bonded to the lamina 100c or lamina 100b via a solidifying agent and a fixing adhesive. . Therefore, when the laminated material 100 is bent, it is possible to prevent the separate fibers covering the entire core wire from being peeled off, so that the strength of the laminated material against bending can be improved.
Furthermore, since the high-strength fiber wires 1d to 1g are formed into a rod shape by integrally integrating the core wire 2 with a solidifying agent, the high-strength fiber wires 1d to 1g can be easily disposed in the groove 100e.

In the third embodiment, in the adhesive filling step, the groove 100e is filled with the fixing adhesive, and the fixing adhesive is applied to the opposing surfaces serving as the bonding surfaces of the laminas 100a to 100d. However, it can also be done as follows.
First, the fixing adhesive is filled in the groove 100e in the adhesive filling process, the reinforcing material 1x is arranged in the groove 100e in the next reinforcing material arranging process, and the laminas 100a to 100d are bonded in the joining process. A fixing adhesive is applied to the opposite surface to be a surface, and laminaes 100 a to 100 d are stacked to form a laminated assembly 100. Such a procedure may be used as a method for joining the laminated materials.

(Embodiment 4)
Next, the wooden product which joined the lamina using the high strength fiber wire 1a-1g shown in FIGS. 1-5 is demonstrated based on FIG.
The laminated material 101 shown in FIG. 11 includes a lamina 100a as a first wooden member, a lamina 100b as a second wooden member, and a groove 100f having a rectangular cross section as a lamina 100b among the four laminaes 100a to 100d. The reinforcing material 1x is arranged and formed. Since it is the same as the laminated material 100 described in the third embodiment (see FIGS. 7 to 9) except for the position where the reinforcing material 1x is arranged, detailed description is omitted.

(Example)
A laminated material 101 shown in FIG. 11 was produced as an invention product. The reinforcing material 1x at this time was the high-strength fiber wire 1a shown in FIG. 1 (see FIG. 12).
The core wire 2 is a high-strength fiber yarn 4 in which 30 pieces of 12K carbon fiber bundles in which 12,000 carbon fiber yarns are converged are twisted (the carbon fiber yarn and the carbon fiber bundle are substantially twisted). Not used). In addition, the restraint material 3 was obtained by winding 1000 dtex polyester fiber around the core wire 2 at a pitch of about 2.7 cm with respect to the length direction of the core wire 2 by a string making machine. The coverage at this time was 29%.

Laminas 100a to 100d used cedar wood processed to have a width of about 9 cm, a thickness of 9 cm, and a length of 2 m. Among these cedar materials, a groove 100f having a groove width of about 1 cm was formed along the length direction in the center of the lamina 100b in the width direction. As a fixing adhesive, resorcinol resin was applied to the entire adhesive surface of the lamina 100a to 100d and filled in the groove 100f of the lamina 100c. Next, the reinforcing material 1x was placed in the groove 100f filled with the fixing adhesive. Thereafter, the bonded surfaces of the laminas 100a to 100d were butted together and extruded to bond the reinforcing material 1x to the laminas 100a and 100b, thereby obtaining a laminated material 101.
A pressing force (indicated by arrow F1 in FIG. 11) is applied to the laminated material 101 at the center of the lamina 100a, and the bending strength and Young's modulus (span 1620 mm, distance between load points 360 mm) are measured. As a result, the bending strength was 68 MPa, and the Young's modulus was 8.5 MPa.

For comparison, a laminated material made of the same lamina 100a to 100d (however, the lamina 100b does not have the groove 100f) but is not reinforced by the reinforcing material 1x is manufactured as a conventional product, and bending strength is obtained. The Young's modulus was measured. As a result, the bending strength was 70 MPa and the Young's modulus was 6.4 MPa. As can be seen from these results, the Young's modulus of the inventive product was greatly improved to about 32%.
In addition, when the invention product after the measurement was observed, the cracked part was a part with a tree node, and it was found that if the lamina has no node, higher bending strength and Young's modulus may be obtained. It was. Moreover, although the conventional product after the measurement was cracked in two, the inventive product after the measurement was of a level lacking the laminated material.

In this embodiment, since the central portion of the lamina 100a is pressed as a pressing point, the laminated material 101 is bent into a convex shape in which the central portion of the lamina 100d bulges downward. Since the lamina 100d is farther away from the pressing point than the lamina 100a when bent in this way, the lamina 100d has a larger radius of curvature than the lamina 100a, and thus the tensile degree in the longitudinal direction with respect to the lamina 100d is greater than the lamina 100a. .
Therefore, when pressing the center portion of the lamina 100a, the groove is formed in 100d rather than the reinforcement 1x being positioned between the lamina 100a and the lamina 100b, and the reinforcement 1x is placed between the lamina 100c and the lamina 100d. Positioning can improve bending strength and Young's modulus. In other words, it is advantageous to dispose the reinforcing material between the laminas far from the position where the pressing force is applied to the laminated material in terms of improving the bending strength and Young's modulus.

  In order to improve not only the reinforcing material 1x between the lamina 100a and the lamina 100b but also the strength against bending against the pressing force from the opposite direction (indicated by arrow F2 in FIG. 13), FIG. As shown in the laminated material 102, the lamina 100d is also provided with a groove 100f, so that the reinforcing material 1x can be positioned between the lamina 100c (first wooden member) and the lamina 100d (second wooden member). Good. However, increasing the number of reinforcing members 1x increases the cost, so it is desirable to dispose the reinforcing member 1x in consideration of the bending direction. Although the rectangular groove 100f is shown in FIG. 13, it may be an arcuate groove 100e.

(Embodiment 5)
Next, the wooden product which joined the wooden member using the high strength fiber wire 1a-1g shown in FIGS. 1-5 is demonstrated based on FIGS.
The laminated material 105 shown in FIG. 14 and FIG. 15 has two long wooden members 105a (first wooden members) and wooden members 105b (second wooden members) as the bonding surfaces. Are bonded to form a single bar-shaped member. On the wooden member 105a and the wooden member 105b, the reinforcing material 1x for reinforcement is arranged so as to straddle two pieces.
The reinforcing material 1x can be any one of the high-strength fiber wires 1a to 1g shown in FIGS. The reinforcing material 1x is disposed in a groove 105c provided along the axis of the wooden member 105a and the wooden member 105b. The bottom surface of the groove 105c is an arc surface.

Next, a method for joining wooden members according to Embodiment 5 of the present invention will be described with reference to FIG.
First, in the groove cutting process in step S50, the wooden member 105a and the wooden member 105b are cut so that the linear grooves 105c are continuous along the respective axes. At this time, the width of the groove 105c is set such that the reinforcing material 1x can be inserted so as not to be too wide with respect to the thickness of the reinforcing material 1x. Moreover, it cuts so that the bottom face of the groove | channel 105c may become a circular arc surface. By making the bottom surface of the groove 105c a circular arc surface, the gap between the reinforcing material 1x and the bottom surface becomes substantially uniform, so that the inner surface of the groove 105c and the periphery of the reinforcing material 1x can be evenly bonded. Can be improved. Further, since the gap between the reinforcing material 1x and the bottom surface is reduced, the fixing adhesive that is wasted can be reduced.

Next, in the joining step in step S60, the end surface (opposing surface) to which the fixing adhesive is applied in a state in which the positions are adjusted so that the groove 105c between the wooden member 105a and the wooden member 105b is linear. Are bonded together by applying a pressing force.
Next, in the adhesive filling step in step S70, the groove 105c is filled with a fixing adhesive. Since the end surfaces of the wooden member 105a and the wooden member 105b are bonded to each other in the joining process in step S60, the fixing bonding is performed on the groove 105c formed so as to straddle the wooden member 105a and the wooden member 105b at a time. The agent can be filled.
As described above, this fixing adhesive is a known fixing adhesive such as resorcinol resin, phenol resorcinol resin, phenol resin, α-olefin resin, epoxy resin, acrylic resin, vinyl acetate resin or water-based polymer-isocyanate resin. The agent can be used. In particular, when a carbon fiber yarn is used as the high-strength fiber yarn, those having high affinity for both the wooden member and the carbon fiber yarn are preferable, and resilcinol resin or phenol resorcinol resin can be preferably used.

  Next, in the reinforcing material arranging step in step S80, the reinforcing material 1x is arranged in the groove 105c already filled with the fixing adhesive. Since the fixing adhesive is filled in the groove 105c in advance, a sufficient fixing adhesive is provided between the reinforcing material 1x and the groove surface of the groove 105c even if the groove width is narrow enough to arrange the reinforcing material 1x. In addition, air can be prevented from entering between the reinforcing member 1x and the groove 105c. Therefore, the adhesive force between the reinforcing material 1x and the groove 105c can be ensured.

  In this way, the reinforcing member 1x is disposed in the groove 105c formed so as to straddle the wooden member 10a and the wooden member 105b, thereby reinforcing the wooden member 105a and the wooden member 105b with the bonding surface therebetween. Therefore, it is possible to improve the strength against bending, particularly the tensile strength, which peels off the adhesive surface between the wooden member 105a and the wooden member 105b.

  In addition, you may cover the groove | channel 105c with a cover member (not shown) as needed. By covering the groove 105c with the lid member and pressing from above the lid member, the lid member adheres to the reinforcing material 1x and the wooden members 105a and 105b, so that the bending strength, Young's modulus, and tensile strength can be further improved. it can.

  14 and 15, the groove 105c is provided only on the upper surface (one surface) side of the wooden members 105a and 105b, but the groove straddling the wooden members 105a and 105b is also provided on the lower surface (other surface) side. The reinforcing material 1x may be disposed.

  In the fifth embodiment, the grooves straddling the wooden members 105a and 105b are cut in the groove cutting process, and the wooden members 105a and 105b are bonded in the bonding process. However, the wooden members 105a and 105b are bonded in advance. Then, a groove extending over the wooden members 105a and 105b may be cut.

[Joint structure of beam and column]
(Embodiment 6)
Next, a joint structure between a beam and a column using the reinforcing carbon fiber wire shown in FIGS. 1 to 5 will be described with reference to FIG. The joint portion 110 between the column 111 and the beams 112 and 113 shown in FIG. 17 is reinforced by the reinforcing material 1x.

The reinforcing material 1x can be the high-strength fiber wires 1a to 1g shown in FIGS. 1 to 5, similarly to the laminated material 100 shown in FIG.
When joining the column 111 and the beams 112 and 113, first, a through hole 111 a is drilled at a predetermined height of the column 111 in advance. Also, deep holes 112a and 113a having a predetermined depth that do not penetrate are drilled in the joint surfaces of the beams 112 and 113.

Next, the reinforcing material 1x is inserted into the through hole 111a and filled with a fixing adhesive. Then, the reinforcing material 1x is inserted into the deep holes 112a and 113a of the beams 112 and 113 by aligning the positions of the deep holes 112a and 113a of the beams 112 and 113 with the reinforcing material 1x protruding from the pillar 111 from both sides across the pillar 111. To do. The deep adhesive holes 112a and 113a of the beams 112 and 113 may be filled with the fixing adhesive before the insertion into the reinforcing member 1x, or before the beams 112 and 113 are completely brought into contact with the column 111. But you can.
Alternatively, a fixing adhesive injection hole may be provided in the deep holes 112a and 113a, and after the beams 112 and 113 are brought into contact with the pillar 111, the fixing adhesive may be filled from the injection hole.

Thus, the tensile strength (pull-out resistance) of the joint portion 110 can be improved by joining the column 111 and the beams 112 and 113 with the reinforcing material 1x interposed therebetween.
In the joint shown in FIG. 17, the reinforcing material 1x is disposed in the reinforcing material insertion hole formed by the through hole 111a and the deep hole 112a, 113a, but the through hole 111a of the column 111 is formed on the upper surface of the beams 112, 113 and In accordance with the lower surface, it is arranged in grooves formed on the upper surface and the lower surface of the beams 112, 113, or is arranged in grooves formed on both sides of the column 111 and the beams 112, 113. 113 may be joined.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a wooden member that is required to improve tensile strength or to improve bending strength or Young's modulus.

1a-1g High-strength fiber wire 1x Reinforcement material 2 Core wire 3a, 3b, 3c Restraint material 4 High-strength fiber yarn 5 High-strength fiber bundle 7a Creel 7b Die 7c Heating furnace 7d Cutting machine 100, 101, 102 Glue 100a-100d Lamina 100e, 100f Groove 100g Groove forming surface 105 Glued material 105a, 105b Wooden member 105c Groove 110 Joint portion 111 Column 111a Through hole 112, 113 Beam 112a, 113a Deep hole

Claims (7)

A core wire that bundles high-strength fiber yarns without aligning the fiber direction,
A wooden member reinforcement comprising: a constraining material that winds and binds around the core wire in a state where the peripheral surface of the core wire is exposed as an adhesive surface with an adhesive for fixing to another wooden member High-strength fiber wire for use.   The high-strength fiber wire for reinforcing a wooden member according to claim 1, wherein the constraining material is a fiber other than the high-strength fiber yarn, and is formed of fibers having higher shear resistance than the high-strength fiber yarn.   The high-strength fiber wire for reinforcing a wooden member according to claim 1 or 2, wherein the constraining material is knitted in a braided shape or a braided cord shape with the core wire as a center.   4. The high-strength fiber wire for reinforcing a wooden member according to claim 1, wherein peripheral surfaces of the constraining material and the core wire are cured by a solidifying agent.   The high-strength fiber yarn is bound and hardened by impregnating a solidifying agent into the peripheral surface of the core wire bundled without aligning the fiber direction, and the high-strength fiber yarn is bound to the other peripheral surface. A high-strength fiber wire for reinforcing a wooden member, characterized by having an adhesive surface for fixing to the wooden member.   The high-strength fiber wire for reinforcing a wooden member according to any one of claims 1 to 5 is used as a reinforcing material, and is interposed between the first wooden member and the second wooden member together with a fixing adhesive. Then, the first wooden member and the second wooden member are bonded to each other, and the wooden member bonding structure using the high-strength fiber wire for reinforcing the wooden member.   The fixing adhesive is mainly composed of resorcinol resin, phenol resorcinol resin, phenol resin, α-olefin resin, epoxy resin, acrylic resin, vinyl acetate resin, and aqueous polymer-isocyanate resin. A joining structure of wooden members using the high-strength fiber wire for reinforcing wooden members according to claim 6.