JP2019035286A - Connector - Google Patents

Abstract

To provide a connector that is mainly used to install ligneous plate materials, can secure strength to shear load, and makes construction work at the site easy.SOLUTION: A connector is used at a boundary of one material 41 and the other material 51 adjacent to each other, and comprises a joint element 31, an opposite plate 37, and nails 39. The joint element 31 has a profile where tenons 33 are penetrated through a detention plate 32, and the opposite plate 37 is provided with guide holes 38. By fixing the joint element 31 to the one material 41 with the nails 39 and fixing the opposite plate 37 to the other material 51 in the same way, the tenons 33 are fitted into the guide holes 38 without any looseness and thereby shear load can be transferred between the one material 41 and the other material 51. In addition, pulling tools 11 are placed so as to sandwich the joint element 31 or the like, and buried tools 21 are embedded into the one material 41 and the other material 51, and thereby the one material 41 and the other material 51 can be coupled by pulling the buried tools 21 to the pulling tools 11 with fasteners 15. Most of these components can be installed in advance, and thus construction work at the site is easy.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector mainly used for installing a wooden board.

  Up to now, wooden buildings have spread mainly in small buildings such as houses. In recent years, however, the manufacturing technology for laminated timber has improved, and it has become possible to stably supply timber with a large cross section, and it has become possible to reasonably realize the construction of larger-scale buildings such as apartment buildings and public facilities. It was. There are various types of laminated lumber, and one of them is CLT. CLT is also referred to as an orthogonal laminated plate, and is laminated so that the fiber directions of adjacent plate pieces are orthogonal to each other, so that the directionality of the strength is canceled and has a corresponding thickness, so only CLTs are combined. And you can also complete the skeleton structure of the building.

  Since CLT is used for the skeletal structure of buildings, various technical developments have been made so far, and examples thereof include the following patent documents. Among them, Patent Document 1 discloses a floor structure in which adjacent laminated materials are connected with H steel material, and it is assumed that CLT is used as the laminated material. In this floor structure, a plurality of laminated timbers are arranged side by side, and a pair of upper and lower slits are processed on the side surfaces of the individual laminated members over the entire length. And H steel material is arranged between adjacent laminated materials, the half of the flange is inserted in the slit of one laminated material, the other half is inserted in the slit of the other laminated material, and the laminated material and the H steel material are bonded together. Integrate. In this way, by connecting the laminated material using the H steel material, a floor structure having light weight but high strength is realized.

  The following Patent Document 2 discloses a connection structure that does not require a bolt / nut tightening operation during construction. In this connection structure, two members called a main material and a secondary material are integrated, and a bar-like tool is attached to the secondary material. A flange-like protruding piece is provided at the tip of the gathering tool, and this protruding piece is arranged so as to protrude from the surface of the secondary material. Then, when the tip of the tool reaches the inside of the holding hole provided in the main material and further inserts the restraint tool from the entrance of the holding hole, the restraint tool restricts the displacement of the protruding piece, and the main material and the secondary material are connected. The Therefore, at the time of construction, after the main material and the secondary material are brought into contact with each other in a predetermined posture, the connecting work is completed simply by inserting the restraint tool from the entrance of the holding hole. For the main materials and sub-materials listed here, it is also assumed that CLT is used.

JP 2017-25524 A JP 2017-2526 A

  CLT can also be used as a structural material for buildings because of its high rigidity, and because a strong wall or floor is constructed simply by connecting the CLTs together, construction work can be simplified. However, the boundary between adjacent CLTs inevitably becomes an elongated rectangular shape, and when both are firmly integrated in the entire region, there is a risk of complicating construction work. For this reason, when CLTs are connected to each other, a practical means in consideration of workability and cost is introduced. However, in order to prevent loosening of the structural material, it is necessary to sufficiently secure the strength against the shear load. .

  As described in Patent Document 1, adhesion is often used for connecting members. Adhesion is excellent in terms of strength because the members that come into contact can be integrated into a planar shape, but quality control is difficult on site, and there is a risk that the work can proceed without finding defective adhesion is there. In addition, it is necessary to consider the time required for the adhesive to solidify, increasing the labor on site. Therefore, it is desirable to use physical means such as bolts and nails for connecting the members on site.

  The present invention was developed on the basis of such circumstances, and is mainly used to install a wooden board, and is intended to provide a connector that can secure strength against a shear load and can be easily installed on site. .

  The invention according to claim 1 for solving the above problem is used at a boundary between one adjacent material and the other material, and is in surface contact so as to overlap with the connector to be incorporated into the one material, and the connector. An opposing plate incorporated in the other material, and the joint and nails for fixing the opposing plate, and the joint is a planar indwelling plate embedded in a recess provided in the one material; The opposing plate is a flat surface embedded in a recess provided in the other material, and the opposing plate is inserted into the opposing plate without looseness. The coupling tool is characterized in that a guide hole is provided and a shear load acting on a boundary between the one material and the other material can be transmitted by fitting the tenon into the guide hole.

  The connector according to the present invention is composed of three elements of a connector, a counter plate, and nails, and is used to fix and connect two adjacent members in various wooden structures including wooden construction. Of these, one is called one material and the other is called the other material. Here, the one material and the other material are assumed to be a plate material such as CLT or a bar having a large cross section, and the one material and the other material are in contact with each other. Regulates relative displacement with the material.

  The joining tool and the opposing plate are arranged at the boundary between the one material and the other material, and the joining tool is fixed to the one material, and the opposing plate is fixed to the other material. The connector is composed of a planar indwelling plate and a tenon penetrating the indwelling plate, and the indwelling plate is embedded in a recess provided in one material. In addition to finishing the concave portion into a shape that allows the indwelling plate to be fitted without loosening, the side peripheral surface of the concave portion circulates without interruption. When the indwelling plate is embedded in the recess, one end of the tenon is embedded in one material, but the other end of the tenon projects from the one material. Further, in order to fix the connector to one material, nails are inserted from the indwelling plate toward the one material.

  The counter plate is arranged so as to overlap the indwelling plate of the connector, and is embedded in a recess provided in the other material. About a recessed part, similarly to the one material side, it finishes in the shape which can fit a counter board without loosening, and the side surrounding surface of a recessed part shall circulate without interruption. The counter plate embedded in the recess is fixed to the other material with nails. The counter plate is provided with a guide hole so as to fit the joint of the joint without looseness. The tenon that penetrates the guide hole is embedded in the other material.

  A shear load is transmitted between the one material and the other material by fitting the tenon of the connector into the guide hole of the opposing plate. The indwelling plate of the connector is embedded in the concave portion of one material without looseness, and the opposing plate is embedded in the concave portion of the other material without loosening, so that the shear load is transmitted smoothly. In addition, about the depth of a recessed part, when one material and the other material contact, it is necessary to adjust with a high precision so that an indwelling plate and a counterplate can also contact.

  The tenon is embedded so as to straddle one material and the other material. Therefore, if the hole for embedding the tenon is processed with high accuracy, the shear load can be transmitted even with the single tenon. In addition, measures such as embedding the heads of nails to be inserted into the indwelling plate and the facing plate should be taken so that the indwelling plate and the facing plate can be brought into smooth surface contact.

  In this way, by using a connector composed of a connector, a counter plate, and nails, the shear load is smoothly transmitted between the one material and the other material, and the one material and the other material are strengthened. Can be linked. The joint and counter plate can be attached to one or the other material at the lumbering stage, and the relative displacement between the one material and the other material can be reduced by simply fitting the joint of the joint into the guide hole of the counter plate. It is regulated and construction work on site becomes easy. Various conventional techniques may be freely selected for the means for drawing the one material and the other material.

  The invention according to claim 2 is for bringing the one material and the other material into close contact with each other so as not to be detached, and using a gathering device arranged so as to sandwich the joining tool and the counter plate, and the one material and the other material are separated by the gathering tool. It is characterized by drawing. The invention described in claim 2 is for completing the connection between the one material and the other material, and uses a new tool. In addition to arranging the connector so as to sandwich the connector and the counter plate, the contact tool comes into contact with both the one material and the other material because of its use.

  For the gathering tool, various conventional techniques can be used as they are, and an example thereof is a box-shaped bracket. Box-shaped metal fittings are literally hollow steel plates assembled in a box shape, placed in two places so that the connector and the counter plate are sandwiched, and one side of each box-shaped metal fitting is in contact with one material and is opposite The surface is brought into contact with the other material. Then, an embedded tool such as a lag screw is embedded in the one material and the other material, and one end surface thereof is brought into contact with the box-shaped bracket. Furthermore, a fixing tool such as a bolt is inserted from the inside of the box-shaped bracket toward the buried tool, and the buried tool is pulled toward the box-shaped bracket. As a result, the one material and the other material are drawn through the box-shaped metal fitting, and the one material and the other material are brought into close contact with each other so as not to be detached.

  As a specific example of the gathering tool, in addition to the box-shaped bracket, a shaft can be used. The shaft is a metal bar having a circular cross section, and is embedded so as to penetrate one material and the other material. Further, a drift pin or the like is driven so as to intersect the embedded shaft, and the shaft is fixed to both the one material and the other material. As a result, the one material and the other material are brought into close contact with each other through the shaft. In order to drive the drift pin, holes are formed in advance on the side surfaces of the one material and the other material. However, the drift pin that has been driven is fixed by friction and does not fall off naturally.

  As in the first aspect of the invention, the shear load is smoothly transmitted between the one material and the other material by using the connector composed of the connector, the opposing plate, and the nails. And the strength of the connecting portion between the other material is improved. In the present invention, a plurality of connectors can be arranged side by side, which is suitable for use on the side end surfaces of elongated members, and the connection between CLTs and the connection between CLT and other members can be easily realized. This contributes to the spread of buildings using CLT as a structural material.

  As in the second aspect of the invention, by using a tool such as a box-shaped bracket or a shaft, the one material and the other material are brought into close contact with each other, and the tensile load acting between the one material and the other material is reduced. Transmission is realized, and the function as a connector can be fully exhibited.

  In the present invention, prior to construction, a tool can be incorporated into one material or the other material, and the joining tool or the counter plate can be fixed to the one material or the other material with nails in advance. Then, a series of connection work is completed only by fixing a gathering tool to either one material or the other material. As a result, local time and effort can be reduced. Furthermore, at the time of construction, the relative displacement between the one material and the other material is restricted by simply fitting the joint of the joining tool into the guide hole of the opposing plate, and then the tool is either one material or the other material. The fixing work can be performed in a stable state, and is excellent in reliability and safety.

In the perspective view which shows the structural example of the coupling tool by this invention, the two members called one material and the other material stand upright, and connect the upper surface of one material, and the lower surface of the other material. FIG. 2 is a perspective view showing a process of connecting one material and the other material in FIG. 1, in which an embedding tool is embedded in both the one material and the other material, and further, the attachment tool is fixed to both ends of the upper surface of the one material. ing. It is a perspective view which shows the state which connected the one material and other material of FIG. It is a perspective view which shows the structure which installed the other material on both the upper and lower sides of one material using the coupling tool by this invention. 4 is a perspective view showing a configuration in which the other material is installed on both the upper and lower sides of one material, but one material in this figure is a bar material extending horizontally, and protrudes to the right side of the drawing from the other material. Further, the joining tool and the counter plate have the same configuration as that shown in FIG. It is a perspective view showing the case where the other material is installed on the upper surface of one material using a connector composed only of a connector, an opposing plate and nails, one material is a floor material laid horizontally, and the other material is upright It is a wall material.

  FIG. 1 shows a configuration example of a connector according to the present invention. In this figure, two members called one member 41 and the other member 51 stand upright, and the upper surface of one member 41 and the lower surface of the other member 51 are shown. Link. Each of the one material 41 and the other material 51 is a plate-like member having an appropriate thickness, such as CLT, and can be used as a building structural material. Further, this connecting tool is composed of a group consisting of the gathering tool 11, the embedding tool 21, and the fixing tool 15, and a group consisting of the joining tool 31, the counter plate 37 and the nails 39. Link.

  A group of the gathering tool 11, the embedding tool 21, and the fixing tool 15 draws the one material 41 and the other material 51 and plays a role of transmitting a tensile load. Among them, the abutment tool 11 is a hollow box-shaped metal fitting in which metal plates are integrated by welding, and is arranged one by one at the end of the boundary between the one material 41 and the other material 51. And in order to accommodate the gathering tool 11, the both ends of the lower surface of the other material 51 are notched into the rectangular shape, and the shoulder part 56 is provided. Naturally, the size of the shoulder portion 56 is adjusted so that an unnecessary gap does not occur at the boundary between the one material 41 and the other material 51.

  The burying tool 21 embeds both the one material 41 and the other material 51 in order to draw the one material 41 and the other material 51 to the gathering tool 11, and a lag screw is used as the burying tool 21 in FIG. 1. Accordingly, a protruding strip 27 extending in a spiral shape protrudes on the side peripheral surface of the burying tool 21, and a head 24 for hanging a tool is provided on one end surface. A female screw 25 is provided. The embedding tool 21 is embedded in a total of four locations above the upper surface of the one material 41 and the shoulder 56 of the other material 51. Therefore, buried holes 45 are machined near both ends of the upper surface of the one material 41, and buried holes 55 are machined above the shoulder portions 56 of the other material 51.

  When embedding the embedding tool 21, adjustment is made so that no step occurs between the head 24 and the embedding holes 45 and 55, and the end surface of the embedding tool 21 is brought into contact with the abutment tool 11. By taking such a measure, the surfaces of the one material 41 and the other material 51 are prevented from being depressed by the urging tool 11. Furthermore, the fixture 15 is used in order to integrate the gathering tool 11 and the buried tool 21. The fixing tool 15 is a simple bolt and is inserted from the inside of the gathering tool 11 toward the female screw 25 of the embedded tool 21. Therefore, a through hole 14 is provided in the center of the upper and lower surfaces of the gathering tool 11 in order to insert the shaft portion of the fixing tool 15.

  When the fixture 15 is accommodated inside the gathering tool 11 and the tip thereof is screwed into the female screw 25 of the embedding tool 21, both the one material 41 and the other material 51 are attracted to the gathering tool 11. The one material 41 and the other material 51 are connected via the. Thereafter, the load that separates the one material 41 and the other material 51 is transmitted via the tool 11 or the like. Furthermore, since the approach tool 11 is arrange | positioned at the both ends of the boundary of the one material 41 and the other material 51, it can also receive a bending moment.

  A group of the joining tool 31, the counter plate 37, and the nails 39 plays a role of transmitting a shear load between the one material 41 and the other material 51. Among them, the connector 31 is fixed to the one member 41 with a structure in which a round bar-shaped boss 33 penetrates a planar indwelling plate 32. The hozo 33 protrudes both above and below the indwelling plate 32, and both are integrated by welding. On the other hand, the opposing plate 37 has the same size as the indwelling plate 32, is disposed so as to overlap the indwelling plate 32, and is fixed to the other material 51.

  On the other hand, a recess 42 is processed on the upper surface of the material 41 in order to embed the indwelling plate 32. The recess 42 is processed so that the indwelling plate 32 is embedded without looseness, and the upper surface of the embedded indwelling plate 32 is aligned with the upper surface of the one material 41 without a step. Then, the connector 31 embedded in the recess 42 is fixed to the one member 41 with nails 39. In FIG. 1, screw nails are used as the nails 39. In order to insert the nails 39, the indwelling plate 32 is provided with nail holes 34 at six locations. At the entrance of each nail hole 34, a counterbore 35 having an enlarged diameter is embedded in order to embed the head of the nails 39. It is provided.

  A recess 52 is processed on the lower surface of the other material 51 in order to embed the opposing plate 37. The recess 52 is processed so that the opposing plate 37 is embedded without looseness, and the lower surface of the embedded opposing plate 37 is aligned with the lower surface of the other material 51 without a step. The counter plate 37 embedded in the recess 52 is fixed with nails 39 as in the case of the connector 31.

  A guide hole 38 is provided in the counter plate 37 in order to fit the boss 33 without looseness. Therefore, when the opposing plate 37 is placed on the upper surface of the indwelling plate 32 and the hozo 33 penetrates the guide hole 38, a shear load can inevitably be transmitted between the connector 31 and the opposing plate 37. The counter plate 37 is also provided with a nail hole 34 and a counterbore 35 for inserting the nails 39, and the indwelling plate 32 and the counter plate 37 can be brought into surface contact without difficulty.

  In addition to being fitted into the guide hole 38 of the counter plate 37, the tenon 33 is embedded in both the tenon hole 43 processed into the one material 41 and the tenon hole 53 processed into the other material 51. These tenon holes 43 and 53 are also finished to have an inner diameter that allows the tenon 33 to be fitted without loosening, and the shear load is transmitted also through the tenon holes 43 and 53. Note that the whole of the bonding tool 31 and the counter plate 37 is embedded in the one material 41 or the other material 51 and is not exposed to the outside after construction.

  FIG. 2 shows a process of connecting the one material 41 and the other material 51 of FIG. The embedding tool 21 is embedded in both the one material 41 and the other material 51, and the attachment tool 11 is fixed to both ends of the upper surface of the one material 41 by incorporating the fixing tool 15. Further, between the left and right approaching tools 11, the retaining plate 32 of the joining tool 31 is embedded in the recess 42 of the one member 41, and the joining tool 31 is fixed to the one member 41 by the nails 39 inserted into the retaining plate 32. ing. As for the other material 51, a counter plate 37 is embedded in the recess 52 and fixed with nails 39.

  In the present invention, as shown in FIG. 2, the gathering tool 11, the connector 31, and the counter plate 37 can be incorporated into the one material 41 or the other material 51, and then the one material 41 and the other material 51 can be transported to the site. , Can simplify the local work. At the site, when the one material 41 is first installed, then the other material 51 is lifted, and the hozo 33 is fitted into the guide hole 38, the other material 51 is placed in a stable state. Then, when the fixing tool 15 is disposed inside the gathering tool 11 and the embedded tool 21 embedded in the other member 51 is drawn to the gathering tool 11, the installation of the other member 51 is completed.

  FIG. 3 shows a state in which one material 41 and the other material 51 of FIG. 1 are connected. The approaching tool 11 is exposed at both ends of the boundary between the one material 41 and the other material 51, but the bonding tool 31 and the opposing plate 37 are embedded in the one material 41 and the other material 51 and are not exposed at all. In addition, in this invention, there is no restriction | limiting in the shape of the approach tool 11, What is necessary is just to be able to draw the embedding tool 21 embedded in both the one material 41 and the other material 51, and to transmit a tensile load. The shape of the connector 31 is not limited as long as it has one or more ridges 33. Therefore, if the extension of the boundary between the one member 41 and the other member 51 increases, the extension of the joint 31 and the counter plate 37 increases accordingly, and the number of the hoses 33 increases. In addition, the buried tool 21 is not limited to the lag screw.

  FIG. 4 shows a configuration in which the other material 51 is installed on both the upper and lower sides of the one material 41 using the connector according to the present invention. The one material 41 in FIG. 4 is assumed to be a horizontally laid member, but the other material 51 is an upright CLT, and the upper and lower CLTs are not directly connected, but the one material 41 is sandwiched therebetween. It is. And about the one material 41, the connector 31 is being fixed to the upper and lower surfaces. On the other hand, with respect to the upper and lower other members 51, shoulder portions 56 are processed at both ends of the upper surface or the lower surface, and the abutment tool 11 is disposed there. Further, a counter plate 37 is fixed between the gathering tools 11 at both ends. In addition, the arrangement | positioning method and fixing method of the joining tool 31 and the opposing board 37 are the same as each figure so far.

  On the other hand, the embedding tool 22 embedded in the material 41 is different from those shown in the drawings so far, and is used as shown on the left side of FIG. The extension of the burying tool 22 is aligned with the height of the one material 41, and both end surfaces of the burying tool 22 are in contact with the tool 11. Further, a center hole 26 penetrating both ends is provided at the center of the embedding tool 22, and the fixing tool 16 is inserted therein. This fixing tool 16 is a full screw bolt, and both ends of the fixing tool 16 protrude from the burying tool 22 and enter the upper and lower tools 11, and a nut 17 is screwed there. By tightening the nut 17, the upper and lower gathers 11 are attracted to the one member 41.

  FIG. 5 shows a configuration in which the other material 51 is installed on both the upper and lower sides of the one material 41 as in FIG. 4, but the one material 41 in this figure is a bar material that extends horizontally, and is on the right side of the figure than the other material 51. It protrudes. Moreover, although the connector 31 and the opposing board 37 are the same structures as FIG. 4, the shaft is used about the approach tool 12, and a total of two are arrange | positioned so that the connector 31 and the opposing board 37 may be pinched | interposed. The approaching tool 12 is a metal bar having a circular cross section, and a side hole 18 for inserting the drift pin 19 is provided on the side peripheral surface thereof.

  The gathering tool 12 is embedded so as to penetrate the upper and lower other members 51. Therefore, a buried hole 45 penetrating the upper and lower surfaces is processed in the one material 41 located in the middle, and a bottomed embedded hole 55 is processed concentrically with the other material 51. In addition, pin holes 59 penetrating the opposite surface are processed on the side surfaces of the upper and lower other members 51. The pin hole 59 is used for driving the drift pin 19 and intersects the embedded hole 55 in the middle of the pin hole 59 and has an inner diameter that can hold the drift pin 19 without loosening.

  In FIG. 5, the closing tool 12 is embedded so as to penetrate the upper and lower other members 51, and the drift pin 19 is driven into the upper and lower other members 51, so that the moving member 12 is fixed inside, and the upper and lower other members 51. The one material 41 is sandwiched between them, and the one material 41 and the other material 51 are completely integrated. In addition, since the gathering tool 12 using a shaft has a comparatively simple configuration, it is easy to increase the number and improve the strength, and as shown in FIG. There may be a case where a plurality of pieces are arranged in each.

  FIG. 6 shows a case in which the other member 51 is installed on the upper surface of the one member 41 using a connector composed of only the connector 31, the counter plate 37 and the nails 39. In a wooden structure, a plate material may be incorporated into a skeleton assembled in a frame shape for reinforcement. Although it is necessary for this plate material to strongly resist the shear load, almost no measures for the tensile load are necessary. FIG. 6 assumes such a case, and the other material 51 is installed on the upper surface of the one material 41. Here, the one material 41 is a floor material laid horizontally, and the other material 51 is upright. It is a wall material.

  6 has a structure in which a round bar-shaped boss 33 is passed through a planar indwelling plate 32 as in the previous drawings. However, the indwelling plate 32 has a circular shape, and an opposing plate placed on the indwelling plate 32. 37 is also a circle with the same diameter. In order to embed the indwelling plate 32, the concave portion 42 is processed on the upper surface of the one material 41, and the concave portion 52 is processed on the lower surface of the other material 51, and the indwelling plate 32 and the opposing plate 37 are loosened by these. It is embedded without being fixed, and is further fixed with nails 39. In the center of the recesses 42 and 52, the side holes 43 and 53 are processed.

  The one material 41 is a vast floor material and spreads in a flat shape, and the other material 51 is a vast wall material, and the boundary between the one material 41 and the other material 51 inevitably becomes an elongated rectangular shape. Therefore, as shown in the drawing, a plurality of connecting tools are continuously arranged along the longitudinal direction of the boundary (in two places in the figure) so that the shear load can be transmitted across the entire boundary. The connector depicted on the left side of the figure is in a state before being embedded in the one member 41 or the other member 51, and the connector depicted on the right side of the figure is embedded in the one member 41 or the other member 51 and fixed with nails 39. It is in the state. In addition, the upper portion of the other material 51 is constrained by some means (not shown), and the one material 41 and the other material 51 can naturally maintain a close contact state, and therefore the approach tool 11 or the like is not used.

11 Collar (Box-shaped bracket)
12 Attaching tool (shaft)
14 Through hole 15 Fixture (bolt)
16 Fixing tool (all screw bolts)
17 Nut 18 Side hole 19 Drift pin 21 Embedding tool 22 Embedding tool 24 Head 25 Female screw 26 Medium hole 27 Convex strip 31 Joint 32 Indwelling plate 33 Hozo 34 Nail hole 35 Counterbore 37 Countering plate 38 Guide hole 39 Nails 41 One material 42 Concave portion 43 Side hole 45 Embedded hole 51 Other material 52 Concave portion 53 Side hole 55 Embedded hole 56 Shoulder portion 59 Pin hole

Claims (2)

Used at the boundary between the adjacent one material (41) and the other material (51),
A connector (31) incorporated in the one material (41);
A counter plate (37) which is in surface contact with the connector (31) and is incorporated into the other member (51);
And nail (39) for fixing the connector (31) and the counter plate (37),
The connector (31) includes a planar indwelling plate (32) embedded in a recess (42) provided in the one material (41), and a rod-shaped hozo (33) penetrating the front and back of the indwelling plate (32). And consists of
The counter plate (37) is a flat surface embedded in a recess (52) provided in the other material (51), and the counter plate (37) is for loosely fitting the tenon (33). A guide hole (38) is provided,
A coupling tool characterized in that a shear load acting on a boundary between the one material (41) and the other material (51) can be transmitted by fitting the tenon (33) into the guide hole (38).   Using the approaching tool (11 or 12) arranged so as to sandwich the joint tool (31) and the counter plate (37), the one material (41) and the other material (51) by the approaching tool (11 or 12). The connector according to claim 1, wherein the connector is pulled.

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