JP7098398B2 - Connection structure - Google Patents

Description

The present invention relates to a connecting structure in which a plurality of members are integrated in various wooden structures such as wooden buildings.

In various wooden structures, there are various methods for connecting members, but in places where high safety is required, such as the skeleton of a wooden building, both the tensile load and shear load acting between the members are sufficient. It is necessary to secure the strength. Therefore, normally, the hozo and the hozo hole are fitted to receive the shear load, and nails are driven so as to penetrate the members to receive the tensile load. In recent years, in order to improve the strength and reduce the cost, various hardware such as hozo pipes are often used.

As an example of the prior art related to the present invention, the following patent document is mentioned, and patent document 1 of them discloses a structure for preventing a floating of a bearing wall in a wooden building. Conventional load-bearing walls use various hardware in order to integrate them with a frame such as a base, but as a result, problems may occur in workability and design. Therefore, in Patent Document 1, an L-shaped floating prevention hardware is used, which is arranged at the intersection of the vertical frame and the lower frame of the bearing wall, and nail members are driven from the hardware toward both members to fix the hardware. is doing. Since this hardware fits within the planes of the vertical frame and the lower frame, it is excellent in both workability and design.

Patent Document 2 discloses a connecting structure using screw nails. In this connecting structure, a U-shaped joint piece is placed near the boundary between the two members, and a screw nail is inserted from the joint piece toward the member. The joint piece has an guide hole for inserting the screw nail. It is provided. The guide hole has a predetermined inclination, and the screw nail is inserted in an oblique direction, not parallel or perpendicular to the axial direction of the member. As a result, when an external force acts on the two members, both a tensile load and a shear load are generated on the screw nail, which strongly resists the external force and improves the strength of the connected structure.

Japanese Unexamined Patent Publication No. 2002-294879 Japanese Unexamined Patent Publication No. 2016-8490

FIG. 9 shows a conventional technique for connecting a floor material and a wall material by inserting a screw nail in an oblique direction in the same manner as in Patent Document 2. Here, it is assumed that the upper and lower surfaces of the floor material are sandwiched between the wall materials, and the end faces of the wall materials come into contact with the upper and lower surfaces of the floor material. Then, in order to integrate the floor material and the wall material, a binder and a screw nail are used. The fitting is U-shaped with the legs at both ends tied with a middle plate, and the legs are provided with guide holes for inserting screw nails, but the guide holes are tilted instead of extending vertically. ing. The wall material is processed with an accommodating groove for embedding the binder, and the binder is arranged so as to sandwich the side surface of the wall material.

FIG. 10 shows the completed state of FIG. 9 in a vertical cross section, in which screw nails are inserted in an oblique direction from the binder toward the floor material or the wall material. The length of the screw nail inserted into the floor material is suppressed to the extent that it does not penetrate the floor material, and the strength may be insufficient depending on the conditions. Further, the screw nail inserted into the floor material may have its insertion direction substantially orthogonal to the grain direction, and in that case, the tensile load may cause cracks along the grain and the screw nail may come off.

The present invention has been developed based on such a situation, and has a connecting structure capable of ensuring sufficient strength in case the length of the screw nail to be inserted into the member is insufficient or when the screw nail is expected to come off. The purpose is to provide.

The invention according to claim 1 for solving the above-mentioned problems is a connecting structure in which one material and two other materials arranged so as to sandwich the one material are integrated, and the other material has a connecting structure. A screw nail that is arranged so as to sandwich the side surface, a screw nail that is inserted from the joint tool toward the other material, and a tension bolt that pulls the joint tool to the one material material are used. A guide hole for inserting a nail is provided, and the guide hole extends obliquely so that the screw nail is inserted in a direction away from the one material, and the binder is paired with each other material. The fittings are arranged one by one, and the fittings are attached to the other material by the screw nails inserted into the guide holes, and the tension bolts are arranged so as to attract the facing joints across the one material. It is a connected structure characterized by being.

The connecting structure according to the present invention is for integrating members called one material and the other material in various wooden structures such as wooden buildings, and in claim 1, one one material and two other materials are integrated. The material is used, the end face of the other material comes into contact with the front surface and the back surface of the one material, and the one material is sandwiched between the two other materials. The two other materials shall be lined up without a step. Further, both the one-sided material and the other-sided material are assumed to be members that form the skeleton of a wooden building, and have an appropriate thickness. Then, in the present invention, the other material is attracted to one material by using the three elements of the binder, the screw nail and the tension bolt.

The binder is a metal part attached to the side surface of the other material, and a screw nail is inserted from here toward the other material to attach the binder to the other material. It is preferable that the binder after attachment does not protrude from the other material, and usually, a storage groove for embedding the binder is formed on the side surface of the other material. In addition, two binders are arranged facing each other so as to sandwich the side surface of the other material. However, the binders arranged so as to face each other do not come into direct contact with each other, and the other material is sandwiched between them. In addition, since the binder is attached to each other material, a total of four binders will be used in one connecting structure.

Screw nails are used to attach the binder to the other material, but shall have a reasonable length and diameter to withstand use in the skeleton of wooden construction. Further, the coupling tool is provided with an guide hole for inserting the shaft portion of the screw nail, and the head of the screw nail that has been inserted presses the coupling tool. The guide hole is formed so that the screw nail is arranged in the direction away from the one-sided material. The "direction away from the one-sided material" means the direction in which the tip of the screw nail gradually moves away from the one-sided material as the screw nail is inserted. In addition, with respect to the guide hole, "extending in an oblique direction" in the claims means that the contact surface between one material and the other material is not parallel or perpendicular to the normal line.

The shape of the binder may be freely determined as long as it does not interfere with the insertion of the screw nail, but it is usually U-shaped in consideration of the formation of the guide hole. Further, it is desirable to provide two or more guide holes in the same direction for one binder. In addition, the screw nail is inserted from the binder toward the other material, but at the same time, it can be inserted from the binder toward the other material to further strengthen the connecting structure. The binder may be arranged so as not to come into contact with one material, but usually, it is brought into surface contact with one material.

As the tension bolt, a head bolt or a full screw bolt is used to penetrate the front and back surfaces of one material and attract the fittings arranged so as to face each other across the one material. Since the binder is attached to the other material with a screw nail, when the joints are attracted to each other with a tension bolt, the other material is inevitably attracted to the other material. The specific configuration in which the tension bolt attracts the fittings to each other can be freely selected.

The use of the connecting structure according to the present invention is not limited to a specific one, but as one of them, it is assumed that a plate-shaped floor material and a wall material are connected to each other. In this case, the floor material becomes one side material, the wall material becomes the other material, and the contact surface between the floor material and the wall material becomes an elongated strip shape. Therefore, the fittings and tension bolts are continuously arranged at predetermined intervals, and the floor material and the wall material are linearly integrated. As a result, even when an excessive load is applied due to an earthquake or the like, the floor material and the wall material are maintained in an integrated state without any gaps.

In this way, as a connecting structure that integrates one material and the other material, a binder, a screw nail, and a tension bolt are used, the joint is attached to the other material with a screw nail, and the joint is attracted to the one material with a tension bolt. Therefore, there is no need to insert screw nails into the lumber. Therefore, even when it is difficult to insert a screw nail from the binder toward the one lumber due to the thickness of the one lumber and the grain direction, the one lumber and the other lumber can be firmly connected.

The invention according to claim 2 is a connecting structure in which an adjacent one material and the other material are integrated, and a coupling tool arranged so as to sandwich the side surface of the other material, and the coupling tool toward the other material. Using a screw nail to be inserted and a tension bolt for pulling the fitting to the one-sided material, the fitting is provided with an guide hole for inserting the screw nail, and the guide hole is provided with the screw nail. It extends obliquely so that it is inserted away from the one material, the binder is attached to the other material by the screw nail inserted into the guide hole, and the tension bolt penetrates the one material. The connection structure is characterized in that one end side of the tension bolt is attached to the fitting, and the other end side is screwed into a female screw or a nut to attract the other material to the one material.

Also in the invention according to claim 2, in order to integrate one material and the other material, three elements of a binder, a screw nail and a tension bolt are used. However, in claim 1, the two other materials are arranged so as to sandwich the one material, but in claim 2, the other material becomes one, and the end face of the other material comes into contact with one side of the one material. Therefore, the tension bolt cannot attract the fasteners facing each other across the one-sided material. Therefore, in claim 2, a tension bolt is inserted so as to penetrate one of the materials, and one end side thereof is attached to the fitting by some means. The other end is screwed into a female screw or nut. As a result, the fitting can be attracted to one material via the tension bolt. This female screw is provided on a metal plate or the like laid under one of the materials.

The invention according to claim 3 shows a specific attachment method between a binder and a tension bolt, and a relay body is sandwiched between a pair of couplers arranged so as to sandwich a side surface of the other material. In addition to integrating the relay body with the coupler, the tension bolt is characterized in that the coupler is attracted to one of the members by coming into contact with the relay body.

The relay body is a metal part sandwiched between two binders sandwiching the side surface of the other material, and the relay body and the coupler are integrated by bolts or the like. When the binder is arranged on both the front and back surfaces of the one-sided material as in the invention of claim 1, the relay body is also arranged on both sides. Further, the tension bolt is brought into contact with the relay body, and the coupling tool is attracted through the relay body. Therefore, the relay body is provided with a hole for inserting the tension bolt and a female screw to be screwed with the tension bolt. If the binder is placed on both the front and back surfaces of one material, two relay bodies are inevitably used, but one of them is provided with a hole for inserting a tension bolt and the other is tensioned. A female screw to be screwed with the bolt is provided, and the two relay bodies are attracted through the tension bolt.

The invention according to claim 4 also shows a specific attachment method between the fitting and the tension bolt, and a flange is provided on one end side of the fitting so as to be in surface contact with one of the members so as to penetrate the flange. By inserting a tension bolt into the flange, the binder is pulled to one side of the material.

The flange is a planar portion provided on one end side of the fitting, and the outward surface of the flange comes into contact with one material. In addition, the flange is provided with a hole for inserting the shaft part of the tension bolt, and after inserting the tension bolt here, the end part is screwed into the female screw or nut, so that the fitting can be pulled to one side. can. When the binder is arranged so as to sandwich the front and back surfaces of the one-sided material, all screw bolts may be used as the tension bolts instead of the head bolts for the convenience of construction work.

As in the invention according to claim 1, as a connecting structure in which one material is sandwiched between two other materials, a binder, a screw nail and a tension bolt are used, and the joint is attached to the other material with a screw nail, and a tension bolt is used. By pulling the binder to one material with, there is no need to insert a screw nail into one material. Therefore, even if it is difficult to insert a screw nail from the binder toward the one material due to the thickness of the one material and the grain direction, in the present invention, the one material and the other material should be firmly connected. Can be done.

As in the invention according to claim 2, as a connecting structure for integrating one material and the other material, a coupling tool, a screw nail and a tension bolt are used, one end side of the tension bolt is attached to the coupling tool, and the other end side is a female screw. Alternatively, by screwing the nut, the other material can be attracted to one material. Therefore, it is not necessary to insert a screw nail from the binder toward the one-sided material, and the same effect as that of the invention according to claim 1 can be obtained.

As in the invention of claim 3, a relay body is sandwiched between a pair of coupling members arranged so as to sandwich the side surface of the other material, and a tension bolt is brought into contact with the relay body to make the coupling tool one material. Can be drawn to. In the present invention, if the coupling tool and the relay body can be integrated with bolts or the like, the shape of the coupling tool is not restricted and it is excellent in versatility.

As in the invention of claim 4, a flange that comes into surface contact with the one-sided material is provided on one end side of the coupling tool, and a tension bolt is inserted so as to penetrate the flange, whereby the coupling tool can be attracted to the one-sided material. .. By providing the flange in this way, the number of parts can be reduced and the labor during construction can be reduced.

In the perspective view showing the shape example of the connecting structure according to the present invention, the other material is arranged above and below the one material, and each other material is attracted to the one material. In the perspective view showing the middle of construction of the connecting structure of FIG. 1, the binder is attached to the other material by using a screw nail, and the relay body is attached to the other material by using a tension bolt. In the perspective view which shows the state after construction of the connecting structure of FIG. 1, the upper and lower two other materials are integrated with one material. It is a perspective view showing a connection structure different from that of FIG. 1, and the joints vertically facing each other with one material sandwiched between them are pulled together by a tension bolt. In the perspective view which shows the state after construction of the connecting structure of FIG. 4, the upper and lower two other materials are integrated with one material. It is a perspective view which shows the shape example of the connection structure which integrates one one material and one other material, one material is a floor material, the other material is a wall material, and the upper surface of one material and the lower end surface of the other material are in contact with each other. do. In the perspective view showing the state after construction of the connecting structure of FIG. 6, the lower end of the tension bolt is screwed into the female screw of the pedestal plate, so that the other material is pulled downward and the one material and the other material are integrated. There is. In the perspective view showing an example of the shape of the coupling tool, the coupling tool is not U-shaped but L-shaped with one leg. In a perspective view showing a conventional technique for connecting a floor material and a wall material, the upper and lower surfaces of the floor material are sandwiched between the wall materials, and screw nails are inserted diagonally from a binder to integrate the floor material and the wall material. In the vertical cross-sectional view showing the completed state of FIG. 9, a screw nail is inserted in an oblique direction from a binder toward a floor material or a wall material.

FIG. 1 shows a shape example of a connecting structure according to the present invention, in which the other material 51 is arranged above and below the one material 41, and each other material 51 is attracted to the one material 41. Here, the one-sided material 41 is a floor material laid in a plane, and the other-sided material 51 is an upright wall material. In this connecting structure, the binder 11, the relay body 31, 32, the screw nail 28, and the tension bolt 21 are used. Etc. are used. Both the one-sided material 41 and the other-sided material 51 form the skeleton of a wooden building and have an appropriate thickness. ..

The binder 11 is a U-shaped metal part having legs 15 located at both ends connected by a middle plate 16, and is attached to the other material 51 with screw nails 28. Therefore, the leg portion 15 is provided with a guide hole 18 for inserting the shaft portion of the screw nail 28. Further, when the leg portion 15 is viewed from the side, its inward facing surface is inclined, and the guide hole 18 extends so as to be orthogonal to this surface. As a result, the screw nail 28 inserted into the guide hole 18 has a predetermined intersection angle with respect to the vertical line. The coupling tool 11 in FIG. 1 is provided with guide holes 18 in both legs 15 sandwiching the middle plate 16, and a screw nail 28 can be inserted into each of the legs.

Two binders 11 are arranged so as to sandwich the side surface of the other material 51. In FIG. 1, a total of four couplers 11 are used in order to arrange the couplers 11 on any of the upper and lower other materials 51. These have the same shape. Further, if the binder 11 protrudes from the side surface of the other material 51, it causes various problems. Therefore, the other material 51 is processed with an accommodating groove 52 into which the entire binder 11 can be embedded. Regarding the other material 51 arranged above the one material 41, a storage groove 52 is processed at the lower end portion thereof. On the other hand, with respect to the other material 51 arranged below the one material 41, an accommodating groove 52 is processed at the upper end thereof.

Since the coupling tool 11 of FIG. 1 is provided with guide holes 18 in both legs 15 facing each other with the middle plate 16 interposed therebetween, the screw nail 28 can be inserted into the one material 41 as well as the other material 51. can. However, at the time of actual construction, the fitting 11 is first embedded in the accommodating groove 52, then the screw nail 28 is inserted only into the other material 51, and the fitting 11 is attached to the other material 51. The guide holes 18 are not symmetrical but are arranged unevenly so that the screw nails 28 do not come into contact with each other inside the one material 41 and the other material 51.

The relay bodies 31 and 32 are metal parts that connect the couplers 11 that sandwich the side surface of the other material 51, and after the couplers 11 and the relay bodies 31 and 32 are brought into contact with each other, both are integrated with a fixing bolt 38. Therefore, a middle hole 20 for inserting the shaft portion of the fixing bolt 38 is provided in the center of the middle plate 16 of the fitting 11, and both side surfaces of the relay bodies 31 and 32 are screwed with the fixing bolt 38. A female screw 34 is provided. Further, in order to embed the relay bodies 31 and 32 in the other material 51, a communication groove 53 is processed. The communication groove 53 connects between the opposing accommodation grooves 52, but the width thereof is kept to the minimum necessary.

The tension bolt 21 is used to attract the two relay bodies 31 and 32 arranged above and below the one-sided material 41. Correspondingly, the relay body 31 arranged above the one-sided material 41 is provided with a round hole 35 for inserting the tension bolt 21, and the relay body 32 arranged below the one-sided material 41 is provided with a round hole 35. A female screw 33 that is screwed with the tip of the tension bolt 21 is provided. The round hole 35 has an enlarged inner diameter on the inlet side in order to accommodate the head of the tension bolt 21.

In this way, the fittings 11 are attached so as to sandwich the relay bodies 31 and 32, and further, the relay bodies 31 and 32 arranged vertically with the relay body 41 sandwiched between them are pulled together by the tension bolts 21 so that all the fittings 11 can be obtained. On the other hand, it is attracted to the material 41. Further, the binder 11 is attached to the other material 51 by inserting the screw nail 28 from the connector 11 toward the other material 51. As a result, the upper and lower other materials 51 are attracted to the one material 41 via the tension bolt 21, and the one material 41 and the other material 51 are integrated. For reinforcement, a short screw nail 28 is inserted even from the binder 11 toward the one-sided material 41.

FIG. 2 shows the middle of construction of the connecting structure of FIG. 1, in which the fitting 11 is attached to the other material 51 by using a screw nail 28, and the relay bodies 31 and 32 are attached to the other material 51 by using a tension bolt 21. It is attached to 41. The binder 11 is attached to the other material 51 by embedding the connector 11 in the accommodating groove 52 of the other material 51 and further inserting a screw nail 28 into the guide hole 18 of the connector 11. One connector 11 has legs 15 at two points, but at this stage, screw nails 28 are inserted only in the legs 15 on the side away from the one material 41. The tip of the screw nail 28 gradually moves away from the one-sided material 41 as it is screwed in. The attached binder 11 is aligned with the upper end surface or the lower end surface of the other material 51 without a step, and can come into surface contact with the one material 41.

On the other hand, with respect to the material 41, relay bodies 31 and 32 are attached to the upper and lower surfaces thereof in advance. On the one hand, the relay body 31 provided with the round hole 35 is placed on the upper surface of the material 41, and the relay body 32 provided with the female screw 33 is brought into contact with the lower surface of the one material 41. The round holes 35 and female threads 33 of the relay bodies 31 and 32 are aligned concentrically with the through holes 42 penetrating the upper and lower surfaces of the one-sided material 41, and then the tension bolt 21 is inserted into the round holes 35 and the tip portion thereof is passed through the through holes. When the tension bolt 21 is tightened after reaching the female screw 33 from the 42, the upper and lower relay bodies 31 and 32 are attracted to the one-sided material 41 and integrated.

As shown in FIG. 2, after attaching the binder 11 to the other material 51 and attaching the relay bodies 31 and 32 to the one material 41, the one material 41 and the other material 51 are brought close to each other and relayed to the communication groove 53 of the other material 51. When the bodies 31 and 32 are inserted and the fixing bolt 38 is finally attached, the one material 41 and the other material 51 are integrated via the relay bodies 31 and 32. In FIG. 2, connecting structures using the binder 11 and the like are arranged side by side at two places, and the accommodating groove 52 is processed not only on the side end surface of the other material 51 but also on the intermediate portion. In this way, when the contact surface between the one material 41 and the other material 51 extends in a band shape, the one material 41 and the other material 51 are integrated like an adhesive by continuously arranging the connecting structures at predetermined intervals. can do.

FIG. 3 shows the state of the connecting structure of FIG. 1 after construction, and the upper and lower two other materials 51 are integrated with the one material 41. The fitting 11 is attached to the other material 51 by a screw nail 28, the upper and lower relay bodies 31 and 32 are attracted by a tension bolt 21, and the fitting 11 and the relay body 31, 32 are integrated by a fixing bolt 38. The one-sided material 41 and the other-sided material 51 are in contact with each other without a gap. In addition, in order to firmly attach the coupling tool 11 to the one-sided material 41, the screw nail 28 is also inserted into the leg portion 15 of the coupling tool 11 that comes into contact with the one-sided material 41. However, the length of the screw nail 28 is suppressed in consideration of the thickness of the one-sided material 41.

FIG. 4 shows a connecting structure different from that of FIG. 1, and one of the coupling members 12 facing each other vertically with the material 41 interposed therebetween are attracted by a tension bolt 22. Also in FIG. 4, the other material 51 is arranged above and below the one material 41, the two binders 12 are arranged so as to sandwich the side surface of the one material 41, and the upper and lower other materials 51 are attracted by the tension bolt 22. Is the same as in FIG. 1, but the coupling tool 12 has a U-shape in which the leg portion 15 and the flange 17 face each other. As the tension bolt 22, all screw bolts without a head are used for the convenience of construction work.

The inward facing surface of the leg portion 15 of the fitting 12 is inclined, and the guide hole 18 provided therein is also inclined. On the other hand, the flange 17 has a simple plate shape that expands in the horizontal direction, and is provided with a gathering hole 19 for inserting a tension bolt 22 therein. In FIG. 4, four couplers 12 having the same shape are used, and the flanges 17 are arranged so as to be in surface contact with the one-sided member 41.

When actually constructing the connecting structure of FIG. 4, first, the coupling tool 12 is embedded in the accommodating groove 52 of the other material 51, and then the screw nail 28 is inserted into the guide hole 18 of the leg portion 15 of the coupling tool 12, and the coupling tool is inserted. 12 is attached to the other material 51. Further, after inserting the tension bolt 22 into the through hole 42 of the one material 41, the other material 51 is brought close to the one material 41, the end portion of the tension bolt 22 is inserted into the gathering hole 19 of the binder 12, and the nut 29 is inserted therein. To screw. Then, when the nut 29 is tightened, the upper and lower fittings 12 are attracted and come into close contact with the material 41.

FIG. 5 shows the state of the connecting structure of FIG. 4 after construction, and the upper and lower two other materials 51 are integrated with the one material 41. The binder 12 is attached to the other material 51 by a screw nail 28, and the upper and lower couplers 12 are attracted by a tension bolt 22, and the one material 41 and the other material 51 are in close contact with each other without a gap. In FIG. 5, connecting structures using the binder 12 and the like are arranged side by side at two places, and the one material 41 and the other material 51 are in a state of being integrated without a gap.

FIG. 6 shows a shape example of a connecting structure in which one one material 41 and one other material 51 are integrated. One material 41 is a floor material, the other material 51 is a wall material, and the upper surface of the one material 41. And the lower end surface of the other material 51 come into contact with each other. Further, the one material 41 in this figure is installed on the upper surface of the foundation concrete 61, but the two are not in direct contact with each other, but the metal pedestal plate 65 is sandwiched between them. Anchor bolts 62 project from the upper surface of the foundation concrete 61, anchor holes 67 for inserting the anchor bolts 62 are provided in the pedestal plate 65, and anchor nuts are provided in the anchor bolts 62 projecting from the anchor holes 67. By screwing 63, the pedestal plate 65 is fixed to the foundation concrete 61.

The coupling tool 14 used in FIG. 6 has a U-shape having a leg portion 15 on the upper side and a flange 17 on the lower side, and the screw nail 28 is slanted from the guide hole 18 of the leg portion 15 toward the other material 51. The point of inserting in the direction is the same as before. Further, the lower end portion of the other material 51 is processed with an accommodating groove 52 for embedding the binder 14. In addition, in FIG. 6, the connecting structures are arranged side by side at two places, and the one material 41 and the other material 51 are continuously integrated.

The tension bolt 22 for pulling the fastener 14 to the one-sided material 41 uses a full-threaded bolt. First, this is inserted into the through hole 42 of the one-sided material 41, the lower end thereof is projected, and the female screw provided on the pedestal plate 65. Screw to 66. Further, the upper end portion of the tension bolt 22 is projected from the gathering hole 19 of the flange 17 of the fitting 14, and the nut 29 is screwed into the bolt 29. 41 and the other material 51 are integrated. In order to prevent the tension bolt 22 from loosening, two nuts 29 are stacked.

The tension bolt 22 is screwed to the pedestal plate 65, and the pedestal plate 65 is fixed to the foundation concrete 61 via the anchor bolt 62. Therefore, the other material 51 is installed on the foundation concrete 61 via the pedestal plate 65. The pedestal plate 65 in FIG. 6 has a strip shape extending along the outer edge of the one-sided material 41, but may be subdivided only around the anchor bolt 62 in consideration of ventilation and the like. In addition, a relief groove 45 is machined on the lower surface of the one-sided material 41 in order to accommodate the tip of the anchor bolt 62 and the anchor nut 63.

FIG. 7 shows a state after construction of the connecting structure of FIG. 6, in which the lower end portion of the tension bolt 22 is screwed into the female screw 66 of the pedestal plate 65, so that the other material 51 is pulled downward and the one material 41 and the other material 41. On the other hand, the material 51 is integrated. Therefore, even when an upward load acts on the other material 51, the load is not transmitted to the one material 41 and the one material 41 is not damaged. Further, even when an excessive external force is applied, the other material 51 is prevented from floating.

FIG. 8 shows an example of the shape of the coupling tool 13. The shape of the binder 13 is flexible as long as the screw nail 28 can be inserted in the oblique direction. Therefore, as shown in this figure, the coupling tool 13 may be formed into an L-shape with the leg portion 15 as one place instead of the U-shape. The coupling tool 13 has a structure of being integrated with the relay bodies 31 and 32 via the fixing bolts 38, so that the other material 51 can be attracted to the one material 41 without difficulty. The shapes and arrangements of the fittings 11, 12, 13, 14 and the tension bolts 21, 22 according to the present invention are not limited to those drawn in the drawings so far, and are within a feasible range. It can be changed freely, and the combination is also free.

11 Coupling tool (two legs)
12 Joiner (legs and flanges face each other)
13 Coupling tool (L-shaped with one leg)
14 Joiner (legs and flanges face each other, used with pedestal plate)
15 Leg 16 Middle plate 17 Flange 18 Guide hole 19 Alignment hole 20 Middle hole 21 Pull bolt (bolt with head)
22 Tensile bolts (all screw bolts)
28 Screw nail 29 Nut 31 Relay body (with a round hole)
32 Relay body (with female screw on the upper surface)
33 Female screw (formed on the upper surface of the relay body and screwed with the tension bolt)
34 Female screw (formed on the side of the relay body and screwed with the retaining bolt)
35 Round hole 38 Stop bolt 41 One side material 42 Through hole 45 Relief groove 51 The other material 52 Accommodating groove 53 Communication groove 61 Foundation concrete 62 Anchor bolt 63 Anchor nut 65 Base plate 66 Female screw (formed on the base plate)
67 Anchor hole

Claims (1)

It is a connecting structure that integrates one material (41) and two other materials (51) arranged so as to sandwich the one material (41).
A coupling tool (11, 13) arranged so as to sandwich the side surface of the other material (51), and a screw nail (28) inserted from the coupling tool (11, 13) toward the other material (51). Using a tension bolt (21) that draws the fittings (11, 13) to the one-sided material (41),
The coupling tool (11, 13) is provided with a guide hole (18) for inserting the screw nail (28), and the guide hole (18) is provided with the screw nail (28) as the one-sided material (18). It extends diagonally so that it can be inserted away from 41).
The binders (11, 13) are arranged in pairs on each of the other materials (51).
The binder (11, 13) is attached to the other material (51) by the screw nail (28) inserted into the guide hole (18).
The tension bolt (21) is arranged so as to attract the binders (11, 13) facing each other with the one material (41) sandwiched therein.
A relay body (31, 32) is sandwiched between the pair of the coupling tools (11, 13) arranged so as to sandwich the side surface of the other material (51), and the relay body (31, 32) is sandwiched. In addition to being integrated with the coupling tool (11, 13), the tension bolt (21) is brought into contact with the relay body (31, 32) to make the coupling tool (11, 13) the one material (41). ) Is a connected structure characterized by being attracted to.

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