WO2020040252A1 - Connector, connection structure, and connection method - Google Patents

Abstract

Provided are a connector, a connection structure, and a connection method that can connect members to be connected in a framework method to assemble a post member and a horizontal member at a higher strength than a connection structure that uses conventional connectors. A connector 2 comprises: a hollow structure body 21 that is formed with a specific rigid material, that has a bottom plate 211 and four side plates 212a-d formed to be erect from the bottom plate 211, that has an opening 215 enclosed by the side plates 212a-d and formed opposite to the bottom plate 211, and that has a connection section to which a connection member 3 can connect on the outside faces of the bottom plate 211 and the side plates 212a-d; and a support body 23 that is formed with a specific rigid material, that can be housed inside the body 21, that has a connection section to which the connection member 3 can connect on the outside face exposed to the exterior while being housed, and that can be fixed by abutting the bottom plate 211, the side plates 212a-d, or both.

Description

Joint, joint structure, and joint method

The present invention relates to a joining tool, a joining structure, and a joining method. More specifically, a joint, a joint structure, and a joint capable of joining members to be joined with higher strength than a joint structure using a conventional joint in a frame assembly method in which a column member and a horizontal member are combined. About the method.

Conventionally, in wooden constructions, various types of connectors such as metal plates have been used to join columns and horizontal members such as beams and girders. As such a connector, for example, a so-called feather plate bolt shown in Non-Patent Document 1 has been proposed.

20 is a joining tool that can be attracted to each other via a bolt 91. A coach screw 93 is passed through a hole provided in a main body 92, and the coach screw 93 is connected to a column member 94 or a lateral member. By screwing into the bridge member 95, a shaft assembly (joining structure) composed of a combination of the column member 94 and the horizontal bridge member 95 is fixed so as not to come off.

In recent years, relatively large earthquakes have frequently occurred in Japan, and with a simple connector such as the above-mentioned blade bolt 9, the connector is damaged during a strong roll, or the bolt 91 or the coach screw 93 is damaged. In some cases, the surrounding soft tissue is exfoliated.

On the other hand, in the share of domestic detached houses and construction methods in FY2016, the ratio of “wooden frame construction method” was 70.9%, and the ratio of “2 × 4 method” was 11.0%. In other words, the ratio of wooden houses combining both methods has reached 81.9%, and it is expected that many wooden houses will be built in the future unless there are special circumstances.

は Under the current situation where it is pointed out that seismic activity may increase in the future, it has been desired to quickly develop new joints and joint structures with improved seismic resistance in the frame method including wooden structures.

The present invention has been made in view of the above points, and in a frame assembly method of combining a column member and a horizontal member, a higher strength is provided between members to be joined than a joint structure using a conventional joint tool. It is an object to provide a joining tool, a joining structure, and a joining method that can be joined.

In order to achieve the above object, the connector of the present invention is formed of a predetermined rigid material, has a bottom plate portion and a required number of side plate portions formed by rising from the bottom plate portion, and in a direction opposite to the bottom plate portion. An opening portion surrounded by the side plate portion is formed, and a main body having a hollow structure having a joint portion to which a joining member can be joined to the outer surface of the bottom plate portion and the side plate portion, and a predetermined rigid material, And a support member that has a joint that can be joined to a joining member on an outer surface that is exposed to the outside in the accommodated state, and that can be fixed by contacting the bottom plate or the side plate, or both.

Here, the connector of the present invention has a hollow-shaped box shape (a bottomed box shape having an opening) by a main body having a bottom plate portion and a side plate portion formed of a predetermined rigid material, and has a compressive force. , Shearing force, tensile force, and the like (hereinafter, referred to as “external force”). Further, as a joint portion of the main body, for example, through a fastener such as a bolt and a nut (hereinafter, simply referred to as “fastener” in the example) or the like, on the outer surface of the bottom plate or the side plate. The joining member can be joined.

Examples of the "predetermined rigid material" include, but are not limited to, a metal material such as stainless steel, and may be a material such as a synthetic resin, carbon fiber, or ceramics, or a combination thereof. Composite material.

`` Side plate portion '', the number and shape can be appropriately set according to the number and joining direction of the joining members to be joined, for example, three surfaces, four surfaces, or those composed of more than three surfaces, The shape is not limited to this, and may be a shape such as a cylindrical shape or an elliptical cylindrical shape. Further, the “bottom plate portion” is formed in a shape such as a triangle, a quadrangle, or a polygon, a cylinder, or an elliptic cylinder, in accordance with the shape of the side plate.

Examples of the “joining member” include a columnar member arranged above or below the jointing member, and a beam, a girder, etc. arranged in a direction crossing the columnar member. A panel material or the like can be joined to a part of the panel. In addition, examples of the joining member include, but are not limited to, wood such as logs and square materials, and are not limited thereto, and may be made of a material such as a metal material, a synthetic resin material, a bamboo material, a stone material, or a combination thereof. It may be a composite material.

The connector according to the present invention includes the support, so that the outer surface exposed to the outside in the housed state in the main body serves as a lid plate toward the opening (the direction opposite to the bottom plate). The joining portion can be provided also at the position where is formed. The joining member can be joined to the joining portion on the outer surface via the joining portion (for example, the above-described joining device, etc.), and all the outer surfaces of the joining device ( The joining member can be joined to the outer surface of the bottom plate, the outer surface of the side plate, and the outer surface of the support).

Furthermore, the support can be fixed in contact with the bottom plate, the side plate, or both. As an aspect of the fixing, for example, an aspect in which the supporting portion provided on the back surface of the lid plate portion and insertable into the main body abuts on the bottom plate portion or the side plate portion, or both of them may be used. Alternatively, a structure in which the periphery of the support is fitted and supported in a notch formed at the opening edge of the main body, or a combination of the above-described structures may be used.

接合 The connector according to the present invention, which has a three-dimensional structure in which the main body and the support are combined, has improved strength because the main body and the support are integrated as compared with a conventional plate-like connector. For this reason, for example, even when external force due to an earthquake or the like is applied in a state where the connector is disposed between two or more connecting members such as a column member and a horizontal member, the connector is not easily deformed or damaged. Then, the joining members can be joined with high strength.

Furthermore, since the connector of the present invention has a structure having a hollow region inside, the weight is reduced as compared with a connector having a solid structure. For this reason, the connector of the present invention can reduce long-term stress and short-term stress that occur in a column member on which the connector is disposed at the upper end.

In particular, with regard to short-term stress, in general, the greater the weight of the upper part of a building, the greater the effect of short-term stress. Specifically, the shaking during an earthquake (short-term stress) increases, and the building tends to be damaged. However, since the connector of the present invention has a sufficient rigidity and is light in weight, it can reduce stress in various directions such as a horizontal direction caused by an external force such as an earthquake in the disposed column member. Can be reduced.

Furthermore, since the joining tool of the present invention can separate the main body and the support body, at the time of construction, after the joining member is joined to the main body, the support body joined with the joining member can be attached. The workability is good because it can work.

Further, the support has a cover plate portion and a support portion provided on the back surface of the cover plate portion and which can be inserted into the main body, and the support portion contacts the inner surface of the main body in a state of being housed in the main body. In the case of a shape that is supported in contact, the inserted support portion is supported in contact with the inner surface of the main body, so that the deformation suppressing force of the connector can be improved. The “inner surface of the main body” may be either the inner surface of the bottom plate portion or the side plate portion constituting the main body, or may be both inner surfaces.

For example, when the cover plate is arranged so that the outer surface faces upward, deformation of the cover plate due to a vertical load applied from the joining member can be suppressed. In addition, in this arrangement mode, the support portion also serves as a reinforcing material against horizontal load, and can suppress deformation of the main body, particularly the side plate. That is, the support portion can improve the deformation suppressing force of the entire joint.

Further, when the joint is formed by a connector insertion hole penetrating in the plate thickness direction, the connector can be inserted into the connector insertion hole, and with this connector, the joining member and the connector are connected. Can be joined. The “connector insertion hole” may be a hole having no processing on the inner surface, or may be a hole into which a female screw is threaded.

And since the connector insertion hole is formed in each plate constituting the outer surface of the connector of the present invention, a connector such as a fastener can be inserted, and the outer surface of each plate can be inserted with this connector. Can be joined to the joining member. The joining of the joining members may be performed on all of the plates such as the bottom plate, or may be performed on an outer surface selected from the outer surfaces of the respective plates such as the bottom plate.

For example, as a usage mode of the connector of the present invention, a pillar material rising from a foundation of a building is joined to an outer surface of a bottom plate portion, a lateral member is joined to an outer surface of a side plate portion, and an outer surface of a support body. An embodiment in which another pillar material arranged in the upward direction is joined. On the other hand, as another usage mode, a column material is bonded to the outer surface of the bottom plate portion and the outer surface of the support, respectively, a column material is bonded to the outer surface of the bottom plate portion, and a horizontal member is bonded to the outer surface of the side plate portion. In a case where a plurality of side plate portions are provided, a portion to which a connecting member is to be connected is selected according to a use, such as a mode in which a lateral member is bonded to each of outer surfaces of at least two side plate portions. Can be.

In other words, the versatility of the connector of the present invention is improved, and it is possible to cope with various uses and construction methods in one form, and the convenience is good.

Further, in the case where the main body is formed with a fixture insertion hole through which a fixture for fixing the support can be inserted, the fixture can be inserted into the fixture insertion hole. The detachment of the attached support can be suppressed.

し な い Because the support does not separate from the main body, it is possible to prevent the joint structure using the joint of the present invention from being damaged even when an external force is applied due to, for example, an earthquake. Also, for example, even when the main body is used in a mode in which the opening is directed sideways or downward, the support can be prevented from coming off. That is, the versatility of the connector of the present invention is further improved, and one embodiment can cope with various uses and construction methods, and is convenient.

In order to achieve the above object, a joint structure of the present invention includes a bottom plate portion and a required number of side plate portions formed by rising from the bottom plate portion. An opening surrounded by a portion is formed, and a joining member capable of joining a joining member to an outer surface selected from a bottom plate portion and a side plate portion, a main body having a hollow structure, and a predetermined rigid material, A support body that can be housed inside the main body and includes a joint that can be joined to the outer surface exposed to the outside in the housed state, and that can be fixed by contacting the bottom plate or the side plate, or both. A joint, and a plurality of joint members joined via two or more joints selected from a joint of the main body or a joint of the support.

Here, in the joining structure of the present invention, the body of the joining tool has a bottom plate portion and a side plate portion formed of a predetermined rigid material, so that the joining device has a box shape of a hollow structure, and is less likely to be deformed by external force. it can. In addition, the main body can be joined to the outer surface of the bottom plate or the side plate via a joint.

In the joining structure of the present invention, since the joining tool has the support, the outer surface exposed to the outside in the state of being housed in the main body becomes a lid plate toward the opening (the opposite direction of the bottom plate), and thereby, A junction can also be provided at the position where the opening is formed. The joining member can be joined to the joining portion on the outer surface of the support through the joining portion (for example, the above-described joining device, etc.). The joining member can be joined to the outer surface (the outer surface of the bottom plate portion, the outer surface of the side plate portion, and the outer surface of the support).

Furthermore, the support can be fixed in contact with the bottom plate, the side plate, or both. Note that, as described above, this fixing mode includes a mode in which the fixing section is abutted and supported by the support portion that can be inserted into the main body.

接合 The connector having a three-dimensional structure in which the main body and the support are combined has improved strength because the main body and the support are integrated as compared with a conventional plate-shaped connector or the like. For this reason, for example, even when external force due to an earthquake or the like is applied in a state where the connector is disposed between two or more connecting members such as a column member and a horizontal member, the connector is not easily deformed or damaged. Then, the joining members can be joined with high strength.

Furthermore, since the joining structure of the present invention has a hollow structure inside the joining device, the weight is reduced as compared with the joining device having a solid structure. For this reason, the joining structure of the present invention can reduce long-term stress and short-term stress that occur in the column member on which the joining tool is disposed at the upper end. In other words, since the weight of the connector is reduced while having sufficient rigidity, it is possible to reduce the stress in various directions such as the horizontal direction caused by an external force such as an earthquake in the disposed column member. it can.

Furthermore, since the joining structure of the present invention can separate the main body and the support of the joining tool, at the time of construction, after joining the joining member to the main body, the support joined with the joining member can be attached, Workability is good because work can be performed in separate steps.

And, the joining structure of the present invention is such that a plurality of joining members are joined to two or more outer surfaces selected from the outer surface of the bottom plate portion, the outer surface of the side plate portion, or the outer surface of the support, A frame such as a pillar in a building can be configured.

As the “joining portion”, for example, a screw member in which a male screw is formed on the shaft portion is provided on one of the joint members and the joining member, and the other is a screw member on which the screw member can be screwed. Although an embodiment in which a hole is provided is exemplified, the present invention is not limited to this, and various known connecting devices can be applied. The above-mentioned terms “predetermined rigid material”, “side plate portion,“ bottom plate portion ”, and“ joining member ”have the same meanings as in the description of the joining tool described above, and the explanation will be omitted.

In addition, when the joining tool is covered with the joining member, the appearance of the joining structure is improved, and the fire resistance can be improved.

For example, when the joining structure of the present invention is configured such that the joining tool is made of metal and the joining member is made of wood and is exposed to the indoor space, the joining tool is covered with the joining member, and thus the joining structure of the present invention is formed. Has an appearance as if it were made of only wood, and it can provide the calm and healing of wood or an elegant appearance in the installation space.

By the way, when the joining structure is made of a joining member made of metal and a joining member made of wood, and the joining device is exposed to an outer surface, in case of a fire, a direct flame should not be applied even when the room is under a high-temperature atmosphere. The joining member is gradually carbonized from the surface and does not immediately collapse, but the joining tool becomes hot in a short time. The high-temperature joint device carbonizes the joint surface of the joining member that abuts and the vicinity thereof, and the joint surface near the carbonized joint device cannot support the load of the entire joint structure. As a result, there is a tendency that the damage near the connector occurs earlier than the total damage due to the combustion of the joint member, leading to the collapse of the building.

However, according to the joining structure of the present invention, since the joining device is covered by the joining member, the joining device can be prevented from becoming hot even in a fire, and the joining device can be quickly damaged than the joint member is damaged by burning. Damage to the nearby portion can be suppressed.

`` The joint is covered by the joint member '' is a design in which the joint does not appear in the appearance by the joint member, for example, the size of the joint may be set smaller than the joint surface of the joint member, Notch the surface to join the joining members into an appropriate shape, close the edge of the notch so that no opening leading to the joint is formed at the joint, set so that the joint is hidden by this notch etc. May be.

In the case where the joining member is a wooden pillar or a horizontal member, the wooden frame construction method using the joining structure of the present invention can be applied to a building. Then, for example, when the joining structure of the present invention is configured to be exposed to the indoor space, it is possible to provide calm and healing of wood or an elegant appearance in the installation space.

In the case where the connecting portion has a structure in which a connector insertion hole penetrating in the plate thickness direction is formed and the joining member and the connector are joined by the connector inserted through the connector insertion hole, The joining member can be joined to the outer surface of the bottom plate or the like by the connecting tool inserted through the insertion hole. Note that the terms “connector insertion hole” and “connector” have the same meaning as the description of the connector described above, and a description thereof will be omitted. The joining of the joining members may be performed on all of the bottom plate portion or the like, or may be performed on two or more outer surfaces selected from the outer surfaces of the bottom plate portion or the like.

For example, as an aspect of the joint structure of the present invention, a pillar material standing from the foundation of the building is joined to the outer surface of the bottom plate portion, a lateral member is joined to the outer surface of the side plate portion, and A mode in which another pillar material arranged in the direction is joined. On the other hand, as another usage mode, a mode in which a column material is bonded to the outer surface of the bottom plate portion and the support body, a mode in which a column material is bonded to the outer surface of the bottom plate portion, and a mode in which a lateral member is bonded to the outer surface of the side plate portion, Alternatively, when a plurality of side plate portions are provided, a portion for joining the joining members can be selected according to the application, such as a mode in which a lateral member is joined to each of the outer surfaces of at least two side plate portions. .

That is, the joining structure of the present invention is a structure that can selectively join the joining members according to the application and the construction method, and has improved versatility and good convenience.

Also, the connecting tool is a screw member having a male screw formed on the shaft portion, and the joining member has a screw hole for screwing the screw member on a joint surface with the joining tool, and a screw hole opening. When the edge has a peripheral portion of a predetermined width formed of a rigid material having a strength equal to or greater than that of the outer surface of the main body or the support, if the peripheral portion is provided so as to protrude from the joining surface, the peripheral portion provided by the provided peripheral portion In addition, the initial rigidity of the joint surface is improved, and deformation of the joint surface of the joint member can be suppressed when stress is generated in a direction intersecting the axial direction of the connection member.

For example, when using wood as a joining member, one of the problems is that the wood is generally weak in compression and has a shearing force (connecting surface) at a joining surface with a joining tool having a predetermined rigidity (eg, a wood opening surface, which is relatively soft). When stress occurs in a direction intersecting with the axial direction of the fixture, the joining tool may deform the joining surface of the joining member due to compressive stress, and it has been difficult to increase the initial rigidity.

However, according to the joining structure of the present invention in which the peripheral portion having the above-described configuration is provided, the peripheral portion comes into contact with the outer surface of the joining tool, so that even when a shearing force is applied to the joining member. In addition, since the outer surface of the hard joint receives the stress at the peripheral portion without penetrating into the soft wood edge, the rigidity of the portion is improved and the deformation of the joint surface can be suppressed.

In addition, when the joint of the joint structure of the present invention is formed by a screw member and a screw hole, higher pull-out strength can be obtained by improving the rigidity of the peripheral portion and suppressing deformation of the joint surface as described above.

Examples of the “screw member in which the male screw is formed on the shaft portion” include a bolt and a screw, but are not limited thereto, and may be a cut bolt or the like.

The “projection from the joint surface” includes, for example, an embodiment in which the joint member protrudes 0.5 mm from the joint surface (eg, a cut edge surface) of the joining member, but is not limited thereto, and projects from about 0.1 mm to 5 mm. It may be an aspect. If the thickness is less than 0.1 mm, the effect of suppressing the deformation of the joint surface is difficult to appear, which is not preferable. On the other hand, if it exceeds 5 mm, it is not preferable because stress may be concentrated in the vicinity of the peripheral portion because it is too far from the outer surface of the connector.

The term "formed of a rigid material having the same or higher strength as that of the main body or the support" means, for example, that the same constituent material as the main body or the support is used for the constituent material of the peripheral portion, but is not limited thereto. Instead, a component harder than the main body or the support may be used as the component of the peripheral portion. In addition, it does not exclude the use of a component that is slightly softer (lower in rigidity) than the main body or the support as a component of the peripheral portion, but is not preferable in view of the above-described effect of suppressing deformation of the joint surface. .

Further, the connecting member has a connecting shaft protruding in a direction opposite to the connecting member on the connecting surface with the connecting tool, and a strength around the base end on the connecting surface of the connecting shaft, which is equal to or greater than the outer surface of the main body or the support. In the case of having a flange-shaped peripheral portion provided in an aspect protruding from the joint surface or substantially flush with the joint surface, the joint is formed by the provided peripheral portion. The initial rigidity of the surface is improved, and the deformation of the joint surface of the joint member can be suppressed when stress is generated in a direction intersecting the axial direction of the connection member. In addition, when the joining portion of the joining structure of the present invention is formed by a connecting shaft and a nut on which a male screw is formed, a higher pull-out strength can be obtained by improving the rigidity by the above-described peripheral portion and suppressing deformation of the joining surface. Can be

Here, the term “substantially flush” means not only a mode in which the front end face of the peripheral portion is higher than the joining face by about 0.1 mm to 5 mm but also a case in which it is completely flush with the joining face. I'm using

In the present invention, the joining operation is completed only by attaching a fastener such as a nut to the connection shaft after passing the tip of the connection shaft provided in advance on the joining surface through the connector insertion hole formed on the joint side. I do. For this reason, for example, when there are a plurality of connecting hole for the connecting shaft and the connecting device corresponding to the connecting shaft, each connecting shaft can be inserted into each connecting device through hole at once, thereby simplifying the operation. And the workability is further improved.

In order to achieve the above object, the joining method of the present invention has a bottom plate and a side plate formed of a predetermined rigid material, and an opening surrounded by the side plate in a direction opposite to the bottom plate is formed. A joint having a hollow-structured main body and a support body having a structure including a lid plate portion formed of a predetermined rigid material, attachable to the main body, and disposed in a direction opposite to the bottom plate portion in a state of being attached to the main body. This is performed by joining a plurality of joining members to an outer surface of the bottom plate, the outer surface of the side plate, or the outer surface of the lid plate via the joining portion.

Here, in the joining method of the present invention, since the main body of the joining tool has a bottom plate portion and a side plate portion formed of a predetermined rigid material, the joining device has a box shape having a hollow structure, and is less likely to be deformed by external force. it can. In addition, the main body can be joined to the outer surface of the bottom plate or the side plate via a joint.

According to the joining method of the present invention, since the joining tool has the support, the outer surface exposed to the outside in the state of being attached to the main body becomes a cover plate toward the opening (the opposite direction of the bottom plate). A junction can also be provided at the position where the opening is formed. The joining member can be joined to the joining portion on the outer surface of the support via this joining portion (for example, the above-mentioned connecting device, etc.). (The outer surface of the support member, the outer surface of the side plate portion, and the outer surface of the support).

支持 Furthermore, the support can be attached to the main body, and the mode of the attachment is, as described above, an aspect in which the support is abutted and supported by the support portion that can be inserted into the main body.

接合 The connector having a three-dimensional structure in which the main body and the support are combined has improved strength because the main body and the support are integrated as compared with a conventional plate-shaped connector or the like. For this reason, according to the joining method of the present invention, for example, even if external force due to an earthquake or the like is applied in a state where the joining tool is disposed between two or more joining members such as a column member and a horizontal member, The joint members can be continuously joined with high strength without being easily deformed or damaged.

Furthermore, since the joining structure of the present invention has a hollow structure inside the joining device, the weight is reduced as compared with the joining device having a solid structure. Therefore, according to the joining method of the present invention, it is possible to reduce long-term stress and short-term stress that occur in the column member on which the joining tool is disposed at the upper end. In other words, since the weight of the connector is reduced while having sufficient rigidity, it is possible to reduce the stress in various directions such as the horizontal direction caused by an external force such as an earthquake in the disposed column member. it can.

Furthermore, according to the joining method of the present invention, since the main body and the support of the joining tool can be separated, at the time of construction, after joining the joining member to the main body, it is possible to attach the support joined with the joining member. The workability is good because the work can be performed in separate steps.

According to the joining method of the present invention, the plurality of joining members are attached to two or more outer surfaces selected from the outer surface of the bottom plate portion, the outer surface of the side plate portion, or the outer surface of the support (cover plate portion). By being joined, a frame such as a pillar in a building can be formed.

The terms “predetermined rigid material”, “side plate portion”, “bottom plate portion”, “joining member”, and “joining portion” have the same meaning as in the description of the joining tool and the joining structure performed earlier. It is used and the description is omitted.

ADVANTAGE OF THE INVENTION According to this invention, in the framing construction method which combines a column material and a horizontal member, a joining tool which can join between members to be joined with higher strength than a joining structure using a conventional joining tool, a joining structure, And a joining method can be provided.

1A and 1B show an embodiment of a connector according to the present invention, wherein FIG. 1A is a perspective view seen from above, and FIG. FIG. 2A is a perspective view seen from above, and FIG. 2B is a perspective view seen from below. FIG. 2A is a plan view, and FIG. 2B is a cross-sectional view taken along line AA in FIG. 2B. FIG. 2A is a cross-sectional view taken along a line BB in FIG. 2B, and FIG. 2B is a cross-sectional view taken along a line CC in FIG. 2B. FIG. 2A is a perspective view seen from above, and FIG. 2B is a perspective view seen from below. FIG. 2 is a front view explanatory view showing a fixing structure of a main body and a support in the connector shown in FIG. 1 and showing an attachment state of the connector and a joining member. It is a perspective view which shows the joining structure of this invention, (a) is the aspect in which the joining member was joined to all six surfaces, (b) is the aspect in which the joining member was joined to the total of five surfaces of three side surfaces and upper and lower surfaces. , (C) shows an embodiment in which a joining member is joined to a total of three surfaces, two side surfaces and a lower surface. 7A is an exploded perspective view viewed from above, and FIG. 7B is an exploded perspective view viewed from below. FIG. It is the perspective view which looked at the joining member shown in FIG. 7A from the joining surface side. It is sectional drawing explanatory drawing which shows the structure of the joining member shown in FIG. FIG. 7 is a partially enlarged explanatory view of a joint portion between a cover plate portion and a joint member illustrated in FIG. 6. It is explanatory drawing which shows the processing procedure of the joining surface side of the joining member shown in FIG. It is a flowchart which shows the formation procedure of the joining surface of a joining member. The modification of this invention is shown, (a) is the aspect (modification 1) in which the arrangement | positioning of the side plate part of a connector is a triangular shape in planar view, and (b) is the arrangement of the side plate part of a connector in a pentagonal shape in plan view. This is a certain mode (Modification 2). FIG. 9 shows a modification of the present invention, in which the arrangement of the side plate portions of the connector is circular in plan view (Modification 3). 13 shows a modification of the present invention, and is another mode (Modification 4) of the joining surface of the joining member. FIG. 13 is a perspective view illustrating another aspect (Modification 5) of the joining member according to the present invention, as seen from the joining surface side of the joining member. FIG. 18 is a partially enlarged explanatory view showing a joint where the joining member shown in FIG. 17 is applied to the lid plate shown in FIG. 6. FIG. 13 is a partially enlarged explanatory view showing another embodiment (modified example 6) of the joining member according to the present invention, showing a joining portion where the joining member is applied to the cover plate portion shown in FIG. 6. 1A and 1B show a conventional technique described in Non-Patent Document 1, in which FIG. 1A is a perspective view of a blade bolt, and FIG.

Embodiments of the present invention will be described in more detail with reference to FIGS. The following description will be made in the order of [joining structure], [joining tool], [joining member], [joining method], [working method of joining surface of joining member], and [modification]. In addition, reference numerals in each drawing are attached within a range necessary for reducing complexity and facilitating understanding, and a plurality of equivalents to which the same reference numerals are assigned may be given a reference numeral for only a part thereof. is there.

(Joint structure)
As shown in FIGS. 6 to 8, the joining structure 1 includes a joining tool 2 and a joining member 3. The joining tool 2 and the joining member 3 will be described in detail below.

(Jigs)
Please refer to FIG. The connector 2 is a cube having a shape with a chamfered corner, and includes a main body 21 and a support 23. The joining tool 2 is made of stainless steel, but may be another rigid material as described above. In this case, the “rigid material” is preferably a material having resistance to deformation and weather resistance.

本体 The main body 21 will be described with reference to FIGS. 1 to 4 and FIG. The main body 21 includes a bottom plate portion 211 and four side plate portions 212a, 212b, 212c, and 212d (hereinafter, referred to as "212a to d" when collectively described) which stand upright from the periphery of the bottom plate portion 211. The bottom plate 211 has a hollow structure in which the opposite direction is open (the portion is hereinafter referred to as “opening 215”).

The bottom plate portion 211 and the side plate portions 212a to 212d have flat outer surfaces except for chamfered corners.

The upper chamfered portions 216a, 216b, 216c, and 216d (hereinafter, referred to as "216a to 216d" when collectively described) are formed in the regions along the openings 215 of the side plate portions 212a to 212d. More specifically, an upper chamfered portion 216a is formed on the side plate portion 212a, an upper chamfered portion 216b is formed on the side plate portion 212b, an upper chamfered portion 216c is formed on the side plate portion 212c, and an upper chamfered portion 216d is formed on the side plate portion 212d. Have been.

The lower side chamfered portions 217a, 217b, 217c, and 217d (hereinafter, collectively referred to as "217a to 217d") are formed on the sides of the side plate portions 212a to 212d along the bottom plate portion 211. More specifically, a lower chamfered portion 217a is formed on the side plate portion 212a, a lower chamfered portion 217b is formed on the side plate portion 212b, a lower chamfered portion 217c is formed on the side plate portion 212c, and a lower chamfered portion 217d is formed on the side plate portion 212d. Have been.

At substantially the center in the width direction of the upper chamfered portions 216a to 216d and substantially the center in the width direction of the lower chamfered portions 217a to 217d, a screw hole 218 for a fixture to which a fixture 5 to be described later can be attached (the above-mentioned "fixing tool insertion hole") (Corresponding to a total of eight) is formed (a total of eight) (see FIG. 2). The fixing tool 5 is a member for fixing the support body 23 so as not to be detached from the main body 21. In the present embodiment, a set screw is employed (see FIG. 6), but the present invention is not limited to this. Various members such as set screws may be used as long as the body 23 can be fixed undetachably.

The fixing screw hole 218 is a hole formed by threading a female screw in the hole wall, penetrates from the outer surface to the inner surface of the side plate portions 212a to 212d, and is formed at a position overlapping with a rib 214a to be described later. (Especially, see FIGS. 2A and 3A). Each of the fixing screw holes 218 is formed in a direction orthogonal to the upper chamfered portions 216a to 216d or the lower chamfered portions 217a to 217d. The direction of the holes provided with the upper chamfered portions 216a to 216d is as follows. , Downwardly inclined toward the center of the main body 21, and the direction of the holes provided with the lower chamfered portions 217a to 217d is upwardly inclined toward the center of the main body 21 (particularly, see FIG. 4A). .

In addition, the screw hole 218 for a fixture is used for joining the joining tool 2 and the joining member 3. For example, between the other joining tool 2 at a diagonal position in the joining structure 1, if necessary, It is also possible to attach a connection part such as a reinforcing material such as a vertical brace, and it can be used for reinforcing the joint structure 1 and the like.

A corner where the side plate 212a and the side plate 212b are joined, a corner where the side plate 212b and the side plate 212c are joined, a corner where the side plate 212c and the side plate 212d are joined, and where the side plate 212d and the side plate 212a are joined Each of the corners has a chamfered portion in the vertical direction (reference numerals are omitted).

予 備 A preliminary hole 219, which penetrates inward and outward of the main body 21 and is formed by threading a female screw in a hole wall, is formed substantially at the center in the height direction of each vertical chamfered portion. Note that the preliminary hole 219 is not used directly for joining the joining tool 2 and the joining member 3, but it is necessary, for example, between the joining tool 1 and another joining tool 2 at a diagonal position in the joining structure 1. Accordingly, it is a hole to which a connection part such as a reinforcing material such as a horizontal brace can be attached, and can be used for reinforcing the joint structure 1 or the like. Further, it is also possible to support the support portion 232 of the support body 23 described later from an oblique direction by screwing a long potato screw or the like until the tip thereof comes into contact with the support portion 232.

接 続 Connector insertion holes 213 penetrating in the thickness direction are formed in the bottom plate portion 211 and the side plate portions 212a to 212d. The connector insertion holes 213 are formed one by one in each corner direction (a total of four places) in the bottom plate portion 211 and the like. Each connection tool insertion hole 213 is a hole having no processing on the inner surface, and is formed to have a slightly larger diameter than a shaft portion of a connection bolt to be described later. I'm trying not to come out.

In the internal space of the main body 21, ribs 214a, 214b, 214c, 214d (hereinafter referred to as "214a to 214d" when collectively described) extend from the inner surface of each of the side plate portions 212a to 212d along a part of the upper surface of the bottom plate portion 211. "Etc.) are formed. That is, one rib (four in total) is formed in the inner space of the main body 21 for each side plate portion.

More specifically, the rib 214a has a substantially L-shape formed in the height direction of the inner surface of the side plate portion 214a (from the opening 215 to the upper surface of the bottom plate portion 211). The end face of the rib 214a facing the center of the inner space of the main body 21 has a shape that hangs down in the vertical direction and is inclined downward in the middle toward the center of the bottom plate 211. Since the ribs 214b to 214d have the same configuration, the individual description is omitted.

支持 With reference to FIGS. 1, 4 and 6, the support 23 will be described. The support 23 has a cover plate portion 231 and a support portion 232 that is provided on the inner surface of the cover plate portion 231 and that can be inserted into the internal space (hollow region) of the main body 21.

The cover plate 231 has a flat outer surface, a size capable of closing the opening 215 of the main body 21 (that is, the direction facing the bottom plate 211), and is slightly smaller than the bottom plate 211 and the side plates 212a to 212d. It is formed to have a large thickness (about 1.5 to 1.6 times the thickness of the bottom plate and the like).

The cover plate portion 231 has a substantially square shape in a plan view, and a first cutout portion 233 having a shape depressed in the center direction of the cover plate portion is formed at a substantially central portion of each side, and each of the first cutout portions 233 is It is configured to be able to engage with the upper ends of the ribs 214a to 214d formed in the opening 215 of the main body 21.

接 続 The cover plate portion 231 is formed with a connector insertion hole 234 penetrating in the plate thickness direction. The connector insertion holes 234 are formed in the lid plate portion 231 one by one from the center toward each corner (total of four locations). The connector insertion holes 234 are arranged such that the axial direction of each hole does not overlap the support portion 232.

Each connection tool insertion hole 213 is a hole that is not processed on the inner surface, is formed to have a slightly larger diameter than a shaft portion of a connection bolt to be described later, and does not rattle with the inserted shaft portion. It is like that.

The support portion 232 has a substantially cruciform shape in which adjacent pieces are orthogonal to each other at the axis. The support portion 232 has such a length that the front end surface 235 is in contact with the upper surface of the bottom plate portion 211, and has a width such that each side end surface (side end surface 236) is in contact with the end surfaces of the ribs 214a to 214d.

The support portion 232 has a second cutout portion 237 and a third cutout portion 238 formed in each piece so as to be inclined in the axial direction.

２The second notch 237 is formed in the vicinity of the place where the second notch 237 is fixed to the cover plate 231. The support portion 232 has a shape cut out in the direction of the central axis, and the deepest corner portion of the second notch portion is formed at a substantially right angle.

The third notch 238 is formed at the tip of the support 232 in the axial direction, and is inclined from the side end surface 236 toward the front end surface 235. In other words, the third notch is provided in a shape that is abutted and supported on the inclined end surface below the ribs 214a to 214d (in other words, the inner surface of the main body 21) when the support portion 232 is inserted into the main body 21. Have been.

In the present embodiment, as the above-mentioned “connector”, a connection bolt 4 having a shaft portion 41 in which a male screw is threaded in a longitudinal direction and having a hexagonal screw head is used.

(Joint members)
The joining member 3 includes pillar members 31a and 31b (hereinafter, referred to as "31a-b" when collectively described), which are polished logs of solid materials, and horizontal members 32a, 32b, 32c, and 32d (hereinafter, collectively). At the time of description, it is constituted by “32a to d”), and by combining with the joint 2, the wooden frame construction method can be applied to the building. In the joining member 3, both end faces (that is, the cut ends) constitute a joining surface 35, and serve as a joining portion with the joining tool 2. The joining surface 35 will be described in detail below.

The column members 31a-b and the horizontal members 32a-d are polished logs made of solid wood, and a spine split 33 having a predetermined depth and a predetermined length from a wooden edge is formed to prevent cracks due to drying. .

6, FIG. 7A, and FIG. 8, the joining members 3 are joined to all surfaces of the joining tool 2. However, as described above, the joining member 3 is a bottom plate of the joining tool 2. From among the outer surface of the portion 211, the outer surface of the side plate portions 212a to 212d, or the outer surface of the cover plate portion 231, it can be joined to two to five outer surfaces desired and selected by a constructor or the like.

This makes it possible to form a pillar or the like with a desired joint structure. As a configuration example, for example, as shown in FIG. An embodiment in which the joining members 3 are joined, or an embodiment in which the joining members 3 are joined to the three side surfaces and the lower surface of the joining tool 2 as shown in FIG.

More specifically, in FIG. 7B, the lateral member 32a is provided on the side plate portion 212a, the lateral member 32b is provided on the side plate portion 212b, the lateral member 32c is provided on the side plate portion 212c, and the column member 31a is provided on the cover plate portion 231. The column member 31b is joined to the bottom plate portion 211, respectively. In FIG. 7C, the lateral member 32b is joined to the side plate portion 212b, the lateral member 32c is joined to the side plate portion 212c, and the column member 31b is joined to the bottom plate portion 211, respectively.

The column members 31a-b and the horizontal members 32a-d are formed with a cut surface 34 that is cut at a predetermined angle from the peripheral surface in the vicinity of the cut edge toward the cut surface, which is the joining surface. In the present embodiment, a total of four cut surfaces 34 are formed from four directions so that the joining surface is square. Note that each cut surface 34 is formed with a single notch groove 341 that extends along the entire length of the cut surface 34 along the slope substantially at the center in the width direction (see FIG. 9).

Since the cut surfaces 34 are formed, when the column members 31a-b or the horizontal members 32a-d are joined to the joining tool 2, the adjacent cut surfaces of the column members 31a-b and the horizontal members 32a-d are formed. 34 are substantially opposed to each other, and the front end side is in close contact, so that the vicinity of the joint surface cannot be seen (that is, the joint member 2 is covered by the joint member 3) as in the splicing method.

The notch groove 341 is formed in advance or after joining with the joining tool 2, and the fixing tool screw hole 218 and the spare hole 219 of the joining tool 2 hidden by joining the column members 31 a-b or the horizontal members 32 a-d are formed. Is a position and depth at which the hole of (a) can be used to insert the fixing device 5, and is as narrow as possible (slightly wider than the fixing device 5) so as not to impair the aesthetic appearance of the column member 31 a or the like. (See especially FIGS. 6, 8 and 9).

In order to prevent the joining member 2 from appearing by the joining member 3, it is preferable that the diameter of the opening of the joining member 3 is about 1.2 to 2 times the length and width of the joining member 2. If the ratio is less than 1.2 times, the joining member 2 is hardly covered by the joining member 3, which is not preferable. On the other hand, if it exceeds twice, the difference in the area ratio of the joining surface of the joining tool 2 and the joining member 3 to the entire joining surface of the joining member 3 becomes large, and the joint member 3 cannot fully resist external forces such as shearing force. This is because the bonding strength may be reduced.

接合 With reference to FIGS. 6, 8 and 9, the joining surface 35 will be described. Although FIG. 9 shows the joint surface 35 of the horizontal member 32a, the joint surfaces formed on both end surfaces of the column members 31a to 31b and the horizontal members 32a to 32d are substantially common. , Individual description is omitted. Since the horizontal member 32a is a natural material, it has some size such as thickness, but the arrangement of the screw holes 36 for the connector for inserting the connection bolts 4 described later is the same.

The joint surface 35 is substantially square in a front view, and the end of the cutout groove 341 appears at the approximate center of each side. In FIG. 9, the end of the spine split 33 appears vertically from the upper side of the joining surface 35 to the center of the joining surface 35.

接 続 The joint surface 35 is formed with a screw hole 36 for the connector along the axial direction of the horizontal member 32a. The connection tool screw holes 36 are formed on the joint surface 35 one by one in each corner direction (a total of four places). Then, the arrangement of the screw holes 36 for each connector is configured to overlap and communicate with each connector insertion hole 213 formed in the side plate portion 212a of the connector 2 (see especially FIGS. 6 and 9). .

The screw hole 36 for a connector is formed by a long nut 361 fitted in a fixing hole 351 formed in the joint surface 35. The long nut 361 is attached so that its base end protrudes by about 0.5 mm from the joint surface 35, and the protruding end surface of the long nut 361 constitutes the aforementioned "peripheral portion having a predetermined width" (hereinafter, referred to as a "peripheral portion"). The end face of the long nut 361 that appears on the joint surface 35 is referred to as a “peripheral portion 362”). The long nut 361 is made of stainless steel, and is a rigid material having the same strength as the stainless steel constituting the main body.

Furthermore, a long shaft portion 363 having a male screw threaded on the peripheral surface is continuously provided on the side opposite to the peripheral edge portion 362 of the connector screw hole 36. The long shaft portion 363 is inserted to the depth of the fixing hole 351, and the outer surface of the long shaft portion 363 and the inner surface of the fixing hole 351 are fixed with an adhesive P. The fixing hole 351 has a recessed portion 352 formed by spirally recessing the inner surface at least in a region where the long shaft portion 363 is inserted with a pressing force that does not cut the wooden fiber.

(Joining method)
With reference to FIGS. 6 to 8, the operation of the joining structure 1 and the joining method will be described.
(1) The joining member 3 (specifically, the column member 31a is attached to the bottom plate portion 211 and the horizontal members 32a to 32d) are attached to the bottom plate portion 211 and the four side plate portions 212a to 212d of the main body 21 of the joining device 2. Is brought into contact with the joining surface 35 of the side plate portions 212a to 212d).

(2) The joining tool 2 and the joining member 3 are joined via the connecting structure portion including the connecting bolt 4 and the connecting tool screw hole 36. Specifically, the connection bolt 4 is inserted into the main body 21, the shaft 41 is inserted into the connector insertion hole 213, and the shaft 41 is taken out of the main body 21.

(3) Then, the shaft portion 41 protruding out of the main body 21 is screwed into the screw hole 36 for the connector on the joint surface 35 of the joint member 3, and the outer surface of the bottom plate 211 or the like of the main body 21 and the joint member 3 Tighten the connection bolt 4 until the joint surface 35 comes into contact. At this time, the peripheral portion 362 of the joining surface 35 hits the outer surface of the bottom plate 211 and the like and stops.

(4) In this manner, all the outer surfaces of the bottom plate portion 211 and the side plate portions 212a to 212d of the main body 2 are joined to the column members 31a and the horizontal members 32a to 32d of the joining member 3.

(5) Next, the joining member 3 (specifically, the column member 31b) is joined to the outer surface of the cover plate portion 231 of the support 23 by the same method. Then, the support body 23 to which the bonding member 3 is bonded allows the support portion 232 to be inserted from the opening 215 of the main body 21 to the inner space of the main body 21.

(6) The inserted support portion 232 is supported in the main body 21 with the front end surface 235 and the side end surface 236 in contact with each other. More specifically, in the main body 21, the front end surface 235 of the support portion 232 abuts on the upper surface of the bottom plate 211, and the side end surface 236 of the support portion 232 and the third notch are provided on the end surfaces of the ribs 214 a to 214 d in the main body 21. 238 abut.

(7) When the support portion 232 is further inserted into the inside of the main body 21, the upper ends of the ribs 214 a to 214 d on the edge of the opening 215 and the first notches 233 on the peripheral edge of the cover plate portion 231 are fitted. .

(8) After attaching the main body 21 and the support 23, the fixing tool 5 is screwed into each of the fixing screw holes 218 of the main body 21 and tightened all the way. As a result, the tip of each fixture 5 comes into contact with the second cutout portion 237 or the third cutout portion 238 of the support portion 232, and the support body 23 is fixed so as not to fall off from the main body 21. In addition, the pressing with the fixing tool 5 prevents rattling between the main body 21 and the support portion 232.

[Processing method of joining surface of joining member]
The method for processing the joining surface of the joining member includes a “fixing hole forming step S1” and a “joining portion forming step S2”. Since the fixing hole forming step S1 includes the “accommodating section forming step”, the fixing hole forming step S1 is hereinafter referred to as “fixing hole forming step S1 / accommodating section forming step”. Each step will be described in detail below mainly with reference to FIGS.

(Fixing hole forming step S1 / accommodating section forming step)
The fixing hole forming step S1 / accommodating section forming step includes a base hole forming step S1-1 and a depression forming step S1-2 for forming the fixing hole 351 (see FIG. 13).

<Basic hole forming step S1-1>
In the basic hole forming step S1-1, a basic hole 353 having a predetermined depth is formed on the bonding surface 35 of the bonding member 3 in a direction substantially the same as the fiber direction D1 of the wood. The base hole 353 forms a housing portion 354 having an enlarged hole diameter in a portion near the joint surface 35 (see FIGS. 12A and 13).

The base hole 353 and the housing 354 are formed by the hammer drill 6 having the drill blade 61. The drill blade 61 is a combination of a cylindrical large-diameter drill blade 612 having a through-hole (not shown) in the long axis direction and a small-diameter drill cone 611. Then, the small-diameter drill bit 611 is inserted into the insertion hole of the large-diameter drill blade 612, and the large-diameter drill bit 612 is fixed to the base end side (the hammer drill 6 side) of the small-diameter drill bit 611.

The large-diameter drill bit 612 and the small-diameter drill bit 611 are detachable. First, the base hole 353 is formed only with the small-diameter drill bit 611, and then the large-diameter drill bit 612 is attached to form the receiving section 354. Either a method of use or a method of simultaneously forming the base hole 353 and the accommodation portion 354 in a state where the large-diameter drill blade 612 and the small-diameter drill bit 611 are integrally fixed can be selected.

<Dent part forming step S1-2>
In the depression forming step S1-2 shown in FIG. 13, the fixing hole forming tool 7 is pushed into the base hole 353 while rotating in the forward direction, and the fixing hole forming tool 7 is pulled out in the reverse rotation, thereby removing the inner surface of the base hole 353. Is formed spirally to form a recessed portion 352. The recess 352 is formed by a hammer drill 6 to which a fixing hole forming tool 7 is attached (see FIG. 12B). After the fixing hole forming tool 7 is removed, the inside of the fixing hole 351 is cleaned with a metal roll brush (not shown) or the like, and compressed air is blown into the fixing hole 351 with an air gun (not shown) to remove wood chips. I do.

The fixing hole forming tool 7 includes a shaft portion 71 and a spiral ridge portion 72 formed at a predetermined pitch on a peripheral surface of the shaft portion 71, as shown in FIG. The ridge portion 72 has a mountain-shaped cross section, a non-sharp tip, and is formed smoothly in the ridgeline direction. In addition, although the chamfering is performed with the tip being flat as the “non-sharp shape”, for example, the tip may be rounded.

Unlike the case where the lag screw is screwed into the wood without the base hole by using the fixing hole forming tool 7, the inner surface of the base hole 353 is spirally formed with a pressing force that does not cut the fiber of the joining member 3. A fixing hole 351 having a concave portion 352 can be formed. And since the tip of the ridge part 72 is formed in the non-sharp and smooth shape, the tip of the ridge part 72 slides along a wood fiber at the time of biting into the above-mentioned wood tissue, Cutting is less likely to occur.

The fixing hole forming tool 7 has a length of the shaft portion 71 of 380 mm, a pitch of the ridge portions 72 of 11 mm, a diameter of 22 mm on the peak side and a diameter of 16 mm on the valley side, but is not limited to this dimension. It can be appropriately changed according to the size of the joining member or the joining tool. The pitch of the ridges 72 is preferably in the range of 10 mm to 12 mm.

In the shaft portion, the ratio of the diameter of the ridge side (projecting ridge) to the diameter of the valley side is preferably in the range of 12: 9 to 10: 7, and more preferably 11: 8. The reason for this is that if the difference between the diameter of the hill side and the diameter of the valley side becomes large, the bite of the ridge portion into the inner surface of the foundation hole becomes large and the wood fiber is cut, which is not preferable. This is because the anchor effect is reduced, which is not preferable.

According to the fixing hole forming step S1 / accommodating portion forming step described above, the fixing hole 351 can be formed on the joint surface 35, and in addition, the base hole 353 of the fixing hole 351 is oriented in the fiber direction D1 of the wood. By being formed along, the highest tensile strength can be obtained after processing.

Further, the fixing hole 351 communicates with the base hole 353 and the depression 352 formed in a direction intersecting with the direction of the wood fiber, and the adhesive that has entered the depression 352 hardens, thereby providing an anchor effect described later. Occurs.

In addition, since the depression 352 is formed with the above-described pressing force, cracks do not occur or hardly occur in the tree structure around the fixing hole 351. Furthermore, the tree structure is compressed and densified, and the strength of the depression 352 is improved.

In the present embodiment, the hammer drill 6 having the above-described drill blade 61 is used. However, the present invention is not limited to this. Other equipment or steps may be used as long as the base hole 353 and the housing 354 can be formed, for example, by performing the step of forming the hole and the housing at the same time. The same applies to the equipment for pushing the fixing hole forming tool 2.

(Joint forming step S2)
The bonding part forming step S2 includes an adhesive injection step S2-1, a long shaft part insertion step S2-2, and an adhesive curing step S2-3 (see FIG. 13). Although FIG. 13 shows the flow of the adhesive injection step S2-1 and the long shaft portion insertion step S2-2, any of the steps may be performed first, and the order of the steps may be changed. Is also good.

<Adhesive injection step S2-1>
The adhesive injecting step S2-1 shown in FIG. 13 is performed by injecting a predetermined amount of the adhesive P into the fixing hole 10, thereby preparing for fixing the long shaft portion 363 described later to the fixing hole 351. Is ready. The adhesive P is injected using a caulking gun 8 or the like having a nozzle 81 having a length reaching the depth of the fixing hole 351, and is preferably injected into the depth of the fixing hole 351 (FIG. 12C). reference).

The adhesive P is a mixture of an epoxy resin as a main component and a curing agent (having an effect of penetrating wood and hardening a penetrated portion), but other known adhesives may be used. When the "predetermined amount" is the size of the fixing hole 351, the amount of the adhesive P to be injected is preferably about 100 cc. According to the knowledge of the inventor, with this amount, it does not sufficiently spread to the gap between the inserted long shaft portion 363 and the fixing hole 351 and does not leak out from the opening of the fixing hole 351 in a large amount.

<Long shaft part insertion step S2-2>
The long shaft portion inserting step S2-2 shown in FIG. 13 is performed by inserting the long shaft portion 363 into the fixing hole 351. Thus, the long nut 361 and the long shaft portion 363 are not fixed to the joining member 3. Ready. Naturally, the long axis portion 363 is smaller in diameter than the fixing hole 351, and the insertion of the long axis portion 363 causes a gap between the long axis portion 363 and the inner surface of the fixing hole 351 to be filled with the adhesive P. (See FIGS. 10 and 11).

The connector screw hole 36 is formed by a long nut 361, and a long shaft portion 363 is threadedly connected to a leading end of the long nut 361. Nuts (symbols omitted) are screwed to the front end side of the long nut 361, and each nut is fastened by a double nut method so as not to be loosened.

(5) The long nut 361 and the long shaft 363 that are continuously provided are inserted in the following procedure. In addition, according to the operation according to the following procedure, the adhesive P is evenly filled in the thread uneven portion and the concave portion 352 of the long shaft portion 363 by the centrifugal force due to the rotation.

(1) Attach the long nut 361 to an impact wrench or the like, and slowly rotate it for about 30 to 60 seconds while rotating it at high speed, and stop once at the position where the base end of the long nut 361 comes out of the joining surface 35 by about 10 mm.
(2) Using a height adjusting plate (not shown), push in the long nut 361 until the base end of the long nut 361 protrudes from the joint surface 35 by 0.5 mm.

At this time, the protruding end surface of the long nut 361 forms the peripheral edge 362. The height adjustment plate has a thickness of 0.5 mm (that is, the same thickness as a desired protrusion height), and has a required number of holes, each hole having a diameter slightly larger than the long nut 361. It was done.

<Adhesive curing step S2-3>
In the adhesive curing step S2-3 shown in FIG. 13, the adhesive P filled between the inner surface of the fixing hole 351 and the outer surfaces of the long shaft portion 363 and the long nut 361 is cured after a predetermined time has elapsed ( Curing).

As a result, the long shaft portion 363 and the long nut 361 are fixed to the fixing hole 10, and particularly, the adhesive P that has hardened by entering the helical recess 352 exerts an anchoring effect on wood tissue around the fixing hole 351. be able to. In addition, the unevenness of the screw formed on the peripheral surface of the long axis portion 363 exerts an anchor effect with the cured adhesive P, and the pull-out strength is further improved (see FIGS. 10 and 11). The fitting nut 35 allows the connection surface 35 to be provided with the connection tool screw hole 36 and the peripheral edge portion 362 to be provided around the connection tool screw hole 36.

Thus, according to the bonding portion forming step S2, the bonding surface 35 having the screw hole 3 for the connecting tool can be formed in each step.

(4) As described above, the wood edge of wood is generally vulnerable to compression, and the metal joint may deform the wood edge due to the generated compressive stress, making it difficult to increase the initial rigidity. However, since the joining member 3 has the above-described peripheral edge portion 362 projecting slightly higher than the joining surface 35, a portion of the joining portion between the joining tool 2 and the joining member 2 that comes into contact with each outer surface of the joining tool 2 is provided. , Instead of the joining surface 35.

Thereby, when an external force (shearing force) in a direction D2 intersecting with the long axis direction of the wood as shown in FIG. 11 is applied, the outer surface of the hard connector 2 bites into the soft kerf surface W1. However, since the stress is received on the surface of the joint 2, the rigidity of the portion is improved, the deformation of the joint surface 35 is suppressed, and a higher pull-out strength is obtained.

In the above-described long shaft portion 363, a male screw is formed in the longitudinal direction of the peripheral surface, but a large number of protrusions are provided radially from the long shaft portion, or a large number of depressions are provided in the long shaft portion. It is only necessary to form various shapes and the like on the peripheral surface of the long axis portion, and to exclude a smooth shape having no unevenness on the peripheral surface of the surface of the long axis portion. is not. The above-mentioned long nut 361 is fastened by the double nut method so as not to be loosened. For example, the long nut in which a screw is provided with a resin for preventing loosening, or the base end side is further expanded in a flange shape. It is sufficient that the connection between the long shaft portion 363 and the long nut 361 does not come off, such as a nut.

接合 With the above configuration, the joint structure 1 has the following excellent effects. That is, in the joining structure 1, since the bottom plate portion and the side plate portions constituting the main body 21 of the joining tool 2 are rigid and have a bottomed box shape having a hollow region therein, an external force transmitted via the joining member 3 is provided. Can be suppressed. Further, by attaching the support body 23 to the main body 21, the connector 2 has a three-dimensional structure in which a plate is disposed on the entire surface. Compared with a conventional plate-shaped connector, the bottom plate portion 211 and the side plate portions 212a to 212d are provided. The rigidity is improved by integrating the cover plate portion 231 and the cover plate portion 231.

In addition, since the support 23 has a support portion 232 that can be inserted into the main body 21, and the support portion 232 in the inserted state is supported by the ribs 214 a to 214 d inside the main body 23, the contact The rear ribs 214a to 214d and the support portion 232 form a cross-shaped support structure in the main body 21, support the side plate portions 212a to 212d in a direction intersecting the plate surface, and provide a space between the bottom plate portion 211 and the cover plate portion 231. Can support.

In addition, when the support 23 is disposed so that the outer surface faces upward, deformation of the support 23 due to a vertical load applied from the joining member 3 can be suppressed. In addition, in this arrangement, the support portion 232 also serves as a reinforcing member against horizontal load, and can suppress deformation of the main body 23, particularly, the side plate portions 212a to 212d. That is, the support portion 232 can improve the deformation suppressing force of the entire joint 2.

As a result, even if an external force due to an earthquake or the like is applied to the joint structure 1 in a state where the joint 2 is disposed between the two or more joint members 3 of the column members 31a to 31b and the horizontal members 32a to 32d. The joining tool 2 is not easily deformed or broken, and the joining members 3 can be joined with high strength continuously.

In addition, in the joining structure 1, since the joining tool 2 can be separated into the main body 21 and the support body 23, the support body 23 to which the joining member 3 is joined after the joining operation of the main body 21 and the joining member 3 is performed at the time of construction. Since it can be attached to the main body 21 and work can be performed in separate steps, workability is good.

Furthermore, since the connector 2 has a structure having a hollow region inside, the weight is reduced as compared with the connector 2 having a solid structure. For this reason, the joint structure 1 can reduce long-term stress and short-term stress generated in the column member 31a or the like in which the joint 2 is disposed at the middle or upper end. In other words, since the connector 2 has a sufficient rigidity and a light weight, the stress in various directions such as the horizontal direction caused by an external force such as an earthquake is reduced in the disposed column members 31a and the like. can do.

Furthermore, in the joining structure 1, the plurality of joining members 3 are attached to two or more outer surfaces selected from the outer surface of the bottom plate portion 211, the outer surface of the side plate portions 212a to 212d, or the outer surface of the cover plate portion 231. By being joined, a frame such as a pillar in a building can be formed.

In the joining structure 1, the connection structure portion is formed by connecting bolts 4, connector insertion holes 213 formed in the bottom plate portion 211, side plate portions 212 a to 212 d, and connector insertion holes 234 formed in the lid plate portion 231. Due to the simple structure, productivity is good, and workability is good even at the time of installation. And since it is the structure which can selectively join the attachment position of the joining member 3 according to a use or a construction method, versatility is high and convenience is good.

Then, in the joint structure 1, detachment of the support 23 attached to the main body 21 is suppressed by the fixing screw holes 218 formed in the main body 21 and the fixing tools 5 screwed into the fixing screw holes 218. Then, rattling occurring between the main body 21 and the support portion 232 can also be suppressed. By having such a fixing structure, it is possible to expect an effect of suppressing breakage when an external force due to an earthquake or the like is applied. In addition, since it can be used regardless of the direction of the opening 215 of the main body 23, various forms can be used in one form. Versatile and convenient for various applications and construction methods.

Furthermore, in the joining structure 1, the joining member 3 is a polished log made of solid wood, and the wooden frame construction method using the joining structure 1 can be applied to a building. And since the joining structure 1 is covered with the joining member 3 which is a polished log of a solid material, the joining device 2 has an appearance even when the joining structure 1 is exposed to the indoor space. The appearance does not appear, and the appearance is as if it were assembled with logs only, and the calm and healing of wood and the elegant appearance can be provided in the installation space.

Furthermore, in the joining structure 1, the joining member 2 is covered with the joining member 3, which is a polished log made of solid wood, so that the joining member 2 is prevented from becoming hot even in the event of a fire. It is possible to suppress the damage in the vicinity of the joint 2 earlier than the damage due to the combustion, that is, the fire resistance is improved as compared with the conventional wooden frame method using the joint.

In addition, the joining structure 1 has a configuration in which the peripheral surface 362 is provided on the joining surface 35 of the joining member 3, so that when a stress such as a shear force is generated in a direction intersecting with the axial direction of the connecting member 3, the joining is performed. The peripheral portion 362 comes into contact with the outer surface of the tool 2 and receives stress, so that the initial rigidity of the joint surface 35 is improved and the deformation of the joint surface 35 can be suppressed.

(Modification)
With reference to FIGS. 14 to 19, modifications 1 to 6 of the components of the joining structure 1 will be described. Note that the connectors 2a to 2c shown in Modifications 1 to 3 are almost the same as the above-described connector 2 except for the configuration of the side plate portion, and thus the description of the overlapping configuration and the function and effect will be omitted. Also, for the bonding surfaces 35a to 35c shown in Modifications 4 to 6, the description of the configuration and the operation and effect that overlap with the bonding surface 35 is omitted.

(Modification 1)
A connector 2a shown in FIG. 14A is a modified example of the connector 2 described above, in which a side plate portion (reference number omitted) is formed of three surfaces, a bottom plate portion (reference number is omitted), and a cover plate portion (reference number is omitted). Is a substantially equilateral triangle. The joining tool 2a can join the column members 31a, 31b in the vertical direction, and can join the lateral members 32a, 32b, 32c to the side.

(Modification 2)
A connector 2b shown in FIG. 14 (b) is a modified example of the connector 2 described above, in which a side plate portion (reference number is omitted) is composed of five surfaces, a bottom plate portion (reference number is omitted), and a cover plate portion (reference number is omitted). Is a substantially regular pentagon. The joining tool 2b can join the column members 31a, 31b in the vertical direction, and can join the horizontal members 32a, 32b, 32c, 32d, 32e to the side.

The joint 2a and the joint 2b can both constitute a frame such as a pillar in a building as a wooden frame construction method. However, when the joint structure is in an aspect exposed to the indoor space, for example, the joint 2a or the joint 2b By arranging the joint structure using the tool 2b at a place that is easily visible such as the center of the room, it is possible to provide an elegant appearance that is different from ordinary pillars and the like.

(Modification 3)
The connector 2c shown in FIG. 15 is a modified example of the connector 2 described above, and is configured by a cylindrical side plate portion (reference number omitted), and a bottom plate portion (reference number is omitted) and a cover plate portion (reference number is omitted). It is the aspect which is. The joining tool 2c can join the column members 31a, 31b in the vertical direction, and can join the lateral members 32a, 32b, 32c, 32d to the side. In addition, since the joint 2c has a cylindrical side plate portion, the arrangement, interval, and number of the connector insertion holes 213 formed in the side plate portion can be set relatively freely, and the degree of design freedom is high.

(Modification 4)
A joint surface 35a shown in FIG. 16 is a modification of the above-described joint surface 35. In the joining surface 35a, a plurality of connection shafts 37 are provided along the axial direction of the horizontal member 32a. The connection shaft 37 is formed with a male screw threaded in the longitudinal direction of the peripheral surface, and is formed on the joint surface 35a one by one in each corner direction from the center (a total of four places). The connection shafts 37 are arranged so as to overlap with the respective connector insertion holes 213 formed in the side plate portion 212a of the connector 2 so as to be inserted therethrough.

The connection shaft 37 is formed of a cut bolt which is inserted into a fixing hole 351a formed in the joint surface 35a and is fixed between the peripheral surface and the inner surface of the fixing hole 351a with an adhesive P. Note that the above-described depression 352 is formed on the inner surface of the fixing hole 351a.

In FIG. 16, the bonding target of the bonding surface 35a is the side plate portion 212a, but the side plate portion 212a is merely an example as a bonding target, and the above-described side plate portions 212b to 212d, the bottom plate portion 211, and the cover plate portion 231 are also formed. Similarly, the bonding surface 35a is to be bonded. In addition, it goes without saying that other connecting tools other than the connecting tool 2 can also be connected.

According to the joint surface 35a, since the connection shaft 37 is a simple bolt, a joint surface having a simple structure at low cost can be formed. In the joint structure 1 using the joint member 3 having the joint surface 35a, the joint shaft 37 is passed through the connector insertion holes 213 and 234 provided in the joint 2 and the nut 42 is attached from the inner side of the joint 2. It is possible to make a simple structure that can be joined only by tightening.

(Modification 5)
Please refer to FIG. 17 and FIG. FIGS. 17 and 18 show a joint structure using a modified example of the joining surface of the wooden transverse member as the joining member (the transverse member 32f having the joining surface 35b), which will be described below as a fifth modified example. . In addition, the description of the configuration and the operation and effect that are the same as those of the above-mentioned horizontal member is omitted, and the different configuration and operation and effect are described in detail.

In the description of Modification Example 5, the “base” and the “base end” refer to a portion that is inserted into the horizontal member 32f at the time of insertion (the upper right direction in FIG. 17 and the arrow D1 in FIG. 18). Direction). The “tip” and the “tip” are portions (in the lower left direction in FIG. 17, FIG. 18) near the joining surface 35 b in the joining direction with the joining target (the side plate portion 212 a in FIG. 18) at the time of insertion. In the direction opposite to the arrow D1).

It should be noted that the side plate portion 212a in FIG. 18 is only an example of a joining target of the joining surface 35b, similarly to the case of the fourth modification, and it goes without saying that the joining tool 2 or another connecting tool can also be a joining target. .

で は A plurality of connecting shafts 37a, which are connecting tools with the connecting tool 2, are provided along the axial direction of the horizontal member 32f on the connecting surface 35b. The connection shafts 37a are formed one by one in each of the corners from the center on the joint surface 35b (four locations in total). Further, each connection shaft 37a is arranged so as to be overlapped with each connection tool insertion hole 213 formed in the side plate portion 212a of the connector 2 so as to be able to be inserted.

基礎 Similar to the transverse member 32a and the like, the transverse member 32f is provided with a base hole 353 in which a recessed portion (reference numeral is omitted) and an accommodation portion 354a. The connection shaft 37a is fitted into the base hole 353 and the housing portion 354a, and an outer peripheral surface of the connection shaft 37a at the fitted portion and an inner circumferential surface of the base hole 353 and the housing portion 354a are fixed with an adhesive. Have been.

収容 A counterbore 355 is formed in the edge portion of each accommodation portion 354a on the tip side (see FIG. 18). The counterbore 355 has a shape inclined downward from the joint surface 35b toward each of the housing portions 354a, and a flange portion 375 described later is provided at a depth at which the flange portion 375 can be attached so as to be substantially flush with the joint surface 35b. .

Here, the term “substantially flush” means that the distal end surface of the flange portion 375 is slightly higher than the joint surface 35b (in this modification, 0.5 mm from the joint surface 35b, as shown in the enlarged portion of FIG. 18). This is used in the sense that it is attached so as to protrude), and also includes the case where it is completely flush with the joining surface 35b.

The counterbore 355 may be provided at a depth at which the flange portion 375 can be attached so as to project from the joint surface 35b by a predetermined height. Here, the “predetermined height” is a height protruding from the joint surface 35b by about 0.1 mm to 1 mm.

The connection shaft 37 a is formed of a cut bolt having a male screw threaded in the longitudinal direction of the peripheral surface, and has a long shaft portion 371 and a large shaft diameter portion 372. Note that the structure, operation, and effect of the long shaft portion 371 are the same as those of the long shaft portion 363, and thus description thereof is omitted.

The large shaft diameter portion 372 is a combination of a flange nut 373 having a flange portion 375 and a nut 374. Both the flange nut 373 and the nut 374 are screwed in the direction of the tip of the long shaft portion 371.

The flange nut 373 is attached to the front end of the long shaft 371 in the longitudinal direction, and is screwed so that the flange 375 faces the front of the long shaft 371. The nut 374 is screwed into a position opposite to the flange portion 375 (that is, a position in the longitudinal direction of the long shaft portion 371 which is more flanking than the flange nut 373). The flange nut 373 and the nut 374 are fastened by a double nut method, and are attached so as not to move from a predetermined position near the distal end of the long shaft portion 371.

The large-diameter shaft portion 372 is attached such that the leading end of the long-axis portion 371 projects a predetermined length from the front end side (the flange portion 375 side) of the large-diameter shaft portion 372.

Next, a method of processing the bonding surface 35b according to the fifth modification will be described. The other steps that are substantially the same as the above-mentioned [method for processing the joining surface of the joining member] are the same as those including the operation and effect, and will not be described.

<Basic hole forming step S1-1>
A base hole 353 having a predetermined depth is formed in the joining surface 35b of the horizontal member 32f in a direction substantially the same as the fiber direction D1 of the horizontal member 32f. The base hole 353 forms an accommodation portion 354a in which the hole diameter of the base hole 353 is expanded, at a portion near the joining surface 35b. A counterbore 355 (step processing) is formed on the edge of the housing portion 354a on the joint surface 35b side.

The base hole 353 and the housing 354a are formed by a hammer drill as in FIG. The counterbore 355 may be formed by a dedicated countersinking tool such as a drill blade in combination with a drill blade (not shown) capable of forming a counterbore, or may be formed manually on the rim of the accommodating portion 354a after drilling. May be.

<Long shaft part insertion step S2-2>
The long shaft portion 371 of the connection shaft 37a is inserted into the base hole 353. Thus, preparations for fixing the connection shaft 37a to the horizontal member 32f are completed. When the base end of the connection shaft 37a is inserted to the vicinity of the deep end of the hole of the base hole 353, the distal end surface of the flange portion 375 of the large-diameter shaft portion 372 is substantially flush with the joint surface 35b.

す る と In this step, when the connection shaft 37a is inserted into the base hole 353, the back surface of the flange portion 375 (opposite to the distal end surface) comes into contact with the surface of the counterbore 355 formed on the joint surface 35b and stops. At this time, since the counterbore 355 is formed at a depth in which the flange portion 375 can be accommodated, the front end surface of the flange portion 375 and the joining surface 35b are substantially flush with each other without using the above-described height adjustment plate. Can be provided. That is, there is no need to stop the work because the height adjustment plate is used, so that the workability is further improved.

As described above, according to the present modification, it is possible to form the joining surface 35b in which the connection shaft 37a is provided on the opening end of the horizontal member 32f.

In the joining surface 35b, the flange portion 145 is provided on the large-diameter portion 142b, so that the end surface (peripheral portion 362) of the long nut 361 on the joining surface 35 is larger in diameter and wider than the end surface. By taking a large contact area, the stress when an external force is applied to the portion can be further dispersed.

Further, when the connection shaft 37a is inserted into the horizontal member 32f, the distal end surface of the large-diameter portion 372b (that is, the distal end surface of the flange portion 375) is slightly higher than the joint surface 35b, and the side plate portion 212a The front surface directly contacts the front end surface of the flange portion 375.

As a result, even if an external force is applied in the direction D2 intersecting with the long axis direction of the horizontal member 32f, the generated compressive stress is received by the surface of the side plate portion 212a and the distal end surface of the flange portion 375. The deformation of the joint surface 35b due to the direct penetration of the portion 212a is suppressed. As a result, the joint structure portion in the present modified example obtains difficulty in deformation (improved rigidity) as a whole, and the pull-out strength of the connection shaft 37a is further improved.

By the way, in the above [joining method],
(1) The connection bolt 4 is inserted into the main body 21 of the connector 2, the shaft 41 of the connection bolt 4 is inserted through the connection hole 213, and the shaft 41 is taken out of the main body 21.
(2) Then, the shaft portion 41 protruding out of the main body 21 is screwed into the screw hole 36 for the connector on the joint surface 35 of the joint member 3, and the outer surface of the bottom plate 211 or the like of the main body 21 and the joint member 3 It was necessary to tighten the connection bolt 4 until the joining surface 35 came into contact.

On the other hand, in the present modification, the horizontal member 32f is joined to the side plate portion 212a via the connection shaft 37a. Specifically, after the tips of the plurality of connection shafts 37a provided in advance on the joint surface 35b are passed through the connection tool insertion holes 213 formed on the connected device side (side plate portion 212a), a screw is screwed from the tip of the connection shaft 37a. The joining operation is completed only by tightening the nut 42 attached (see FIG. 18).

That is, according to the joining method using the joining surface 35b, the tips of the plurality of connection shafts 37a can be inserted into the connected device side at a time, so that the operation can be performed easily and quickly, and the operation can be performed quickly. The properties are further improved.

In addition, in a factory for manufacturing a joining member such as a horizontal member as illustrated, when a joining member is created by pre-cutting, a joining surface 35b to which the connecting shaft 37a is attached may be constructed. In this case, the workability can be further improved because the beam-column assembly can be started immediately after the joining member is carried into the construction site.

(Modification 6)
Referring to FIG. FIG. 19 shows a joint structure using a modified example of the joining surface of the wooden horizontal member as the joining member (the horizontal member 32g having the joining surface 35c), which will be described below as a sixth modified example. In the sixth modification, the connection shaft 37a is used as in the fifth modification. For this reason, regarding the connection shaft 37a and the horizontal member described above, the description of the overlapping configuration and the operation and effect will be omitted, and the different configuration and operation and effect will be described in detail.

The joining surface 35c has a structure without the counterbore 355.

Next, a method of processing the joint surface 35c according to the sixth modification will be described. The other steps that are substantially the same as those of the above-described [method for processing the bonding surface of the bonding member] and Modification 5 are the same as those including the operation and effect thereof, and thus description thereof is omitted.

<Basic hole forming step S1-1>
On the joint surface 35c of the horizontal member 32g, a base hole 353 and a housing portion 354b having an enlarged hole diameter of the base hole 353 are formed. In this modification, unlike the fifth modification, a counterbore is not formed at the edge of the housing portion 354b.

<Long shaft part insertion step S2-2>
The long shaft portion 371 of the connection shaft 37a is inserted into the base hole 353. Thus, preparations for fixing the connection shaft 37a to the horizontal member 32g are completed. When the base end of the connection shaft 37a is inserted to the vicinity of the deep end of the hole of the base hole 353, the distal end surface of the flange 375 of the large shaft diameter portion 372 comes into contact with the surface of the joining surface 35c, and the flange 375 Is slightly higher than the joint surface 35c (projects about 4.5 mm from the joint surface 35c).

In this step, when the connection shaft 37a is inserted into the base hole 353, the rear surface (the side opposite to the distal end surface) of the flange portion 375 comes into contact with the surface of the joint surface 35c and stops. In other words, there is no need to stop the work to use the height adjustment plate or to form the counterbore, so that the workability is good.

As described above, according to the present modification, it is possible to form the joining surface 35c in which the connection shaft 37a is provided on the opening end of the horizontal member 32g.

Similarly to the above-described joint surface 35b, the contact surface 35c can have a large contact area with the side plate portion 212a by providing the flange portion 145, thereby reducing the stress when an external force is applied to the portion. It can be further dispersed.

Further, when the connection shaft 37a is inserted into the horizontal member 32g, the distal end surface of the flange portion 375 is slightly higher than the joint surface 35c, and the surface of the side plate portion 212a and the distal end surface of the flange portion 375 directly contact each other. Touch As a result, even if an external force is applied in the direction D2 intersecting with the long axis direction of the transverse member 32g, the generated compressive stress is received by the surface of the side plate portion 212a and the distal end surface of the flange portion 375, The deformation of the joint surface 35c due to the direct penetration of the portion 212a is suppressed. As a result, the joint structure portion in the present modified example obtains difficulty in deformation (improved rigidity) as a whole, and the pull-out strength of the connection shaft 37a is further improved.

参照 Refer to FIG. The joining method in this modification example is similar to the modification example 5 by joining the horizontal member 32g to the side plate portion 212a via the connection shaft 37a. More specifically, after the tips of the plurality of connection shafts 37a provided in advance on the joint surface 35c are passed through the connection tool insertion holes 213 formed on the connected device side (the side plate portion 212a), a screw is screwed from the tip of the connection shaft 37a. The joining operation is completed only by tightening the nut 42 attached (see FIG. 19).

That is, according to the joining method using the joining surface 35c, the tips of the plurality of connection shafts 37a can be inserted into the connected device side at a time, so that the operation can be performed easily and quickly, and the operation can be performed quickly. The properties are further improved. Also, as in the case of Modification Example 5, if a joint surface 35c to which the connection shaft 37a is attached is also constructed in a factory where the joint member is precut, a beam-column assembly starts immediately after the joint member is carried into the construction site. As a result, workability is further improved.

Note that in Modifications 5 and 6, the distal end surface of the flange portion 375 is not particularly shown, but may have serrates (an uneven shape formed on the distal end surface of the flange portion). Good.

The terms and expressions used in the specification and claims are merely illustrative, not restrictive, and are not intended to limit the features and features described in the specification and claims. There is no intention to exclude equivalent terms or expressions. It goes without saying that various modifications are possible within the scope of the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Joining structure 2 Joiner, 21 main body, 211 bottom plate part, 212a, 212b, 212c, 212d Side plate part, 213 Connector insertion hole, 214a, 214b, 214c, 214d Rib, 215 opening, 216a, 216b, 216c, 216d Upper chamfered portion, 217a, 217b, 217c, 217d Lower chamfered portion, 218 screw hole for fixing tool, 219 spare hole, 23 support, 231 cover plate portion, 232 support portion, 233 first cutout portion, 234 connector insertion hole , 235 end face, 236 side end face, 237 second notch, 238 third notch,
3 joining member, 31a, 31b pillar material, 32a, 32b, 32c, 32d, 32e, 32f, 32g horizontal member, 33 split, 34 cut surface, 341 notched groove, 35, 35a, 35b, 35c joint surface, 351, 351a fixing hole, 352 recess, 353 base hole, 354, 354a, 354b housing, counterbore 355, 36 screw hole for connector, 361 long nut, 362 peripheral edge, 363 long shaft, 37, 37a connection shaft, 371 Long shaft part, 372 Large shaft diameter part, 373 Flange nut, 374 nut, 375 Flange part 4 Connection bolt, 41 Shaft part, 42 nut,
5 fixtures,
6 hammer drill, 61 drill bit, 611 small diameter drill bit, 612 large diameter drill bit,
7 fixing hole forming tool, 71 shaft portion, 72 ridge portion,
8 caulking guns, 81 nozzles,
D1 wood fiber direction, D2 wood long axis direction, P glue,
S1 fixing hole forming step, S1-1 basic hole forming step, S1-2 recess forming step,
S2 bonding part forming step, S2-1 adhesive injection step, S2-2 long shaft part insertion step, S2-3 adhesive curing step,
9 Featherboard bolt, 91 bolt, 92 body, 93 coach screw, 94 pillar, 95 horizontal member

Claims (11)

1. It has a bottom plate portion and a required number of side plate portions formed by being raised from the bottom plate portion, and an opening surrounded by the side plate portion is formed in a direction facing the bottom plate portion. Together, having a joining portion to which a joining member can be joined to the outer surface of the bottom plate portion and the side plate portion, a hollow-structure main body,
   The bottom plate or the side plate portion, or both, is formed of a predetermined rigid material, and has a joint portion that can be housed inside the main body and can be joined to a joining member on an outer surface exposed to the outside in the housed state. And a support that can be fixed in contact with the connector.
2. The support has a cover plate portion, and a support portion provided on the back surface of the cover plate portion, the support portion being insertable into the main body, and the support portion is provided in the main body in a housed state in the main body. The connector according to claim 1, wherein the connector has a shape supported by the inner surface of the connector.
3. The connector according to claim 1, wherein the joint is configured by a connector insertion hole that penetrates in a plate thickness direction.
4. 4. The connector according to claim 1, wherein a fixing tool insertion hole through which a fixing tool for fixing the support is inserted is formed in the main body. 5.
5. An opening is formed of a predetermined rigid material, includes a bottom plate portion and a required number of side plate portions formed by rising from the bottom plate portion, and an opening surrounded by the side plate portion is formed in a direction opposite to the bottom plate portion. A body having a hollow structure, including a joining portion to which a joining member can be joined to an outer surface selected from the bottom plate portion and the side plate portion; and a body formed of a predetermined rigid material and capable of being housed inside the body, and housing A bonding tool including a bonding portion that can be bonded to a bonding member on an outer surface exposed to the outside in the state, the bottom plate portion or the side plate portion, or a support that can be fixed in contact with both,
   A joining structure comprising a plurality of joining members joined via two or more joining portions selected from the joining portion of the main body or the joining portion of the support.
6. The joining structure according to claim 5, wherein the joining tool is covered by the joining member.
7. The joining structure according to claim 5 or 6, wherein the joining member is a wooden pillar or a horizontal member.
8. 6. The connector according to claim 5, wherein the connecting portion is formed with a connector insertion hole penetrating in a plate thickness direction, and the connecting member and the connector are joined by the connector inserted through the connector insertion hole. The joining structure according to claim 6 or claim 7.
9. The connection tool is a screw member in which a male screw is formed on a shaft portion,
   The joining member has a screw hole for screwing the screw member on a joint surface with the joining tool, and a rim of the screw hole has a rim equal to or more than the outer surface of the main body or the support. The joining structure according to claim 8, wherein a peripheral portion having a predetermined width and formed of a rigid material having a high strength is provided so as to protrude from the joining surface.
10. A connecting shaft protruding in a direction opposite to the connecting member on a connecting surface with the connecting tool, and an outer surface of the main body or the support around the base end on the connecting surface of the connecting shaft; 9. A flange-shaped peripheral portion which is formed of a rigid material having a strength equal to or higher than that of the first embodiment and which protrudes from the joint surface or is provided in a manner substantially flush with the joint surface. 10. Joint structure.
11. A hollow body having a bottom plate portion and a side plate portion formed of a predetermined rigid material, an opening surrounded by the side plate portion in a direction opposite to the bottom plate portion, and formed of a predetermined rigid material; Attached to the main body, and for a connector having a support having a structure including a lid plate portion disposed in a direction opposite to the bottom plate portion in a state of being attached to the main body, via a bonding portion, A joining method comprising joining a plurality of joining members to two or more outer surfaces selected from the outer surface of the bottom plate portion, the outer surface of the side plate portion, or the outer surface of the lid plate portion.

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