JP3275236B2 - Joiner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining device for joining between wood, glulam, or between stones, or between wood or glulam and stone or concrete, and more particularly to a wooden house or a large wooden building having a large sectional structure. The present invention relates to a joint used for joining structural members in a joint of a building structure such as a frame structure or a joint structure.

[0002]

2. Description of the Related Art In recent years, for the purpose of labor saving and rationalization of construction work for houses and the like, jointing tools for joining beams and eaves girder, eaves girder and column, trunk insertion and through column, etc., or rationalization of construction. The intended joint structure and joint structure have been developed. For example, Japanese Utility Model Application Laid-Open No. 63-162008 discloses a frame fitting used for a wooden frame construction method. Japanese Utility Model Application Laid-Open No. 2-93401 discloses a connection between a lower end of a pillar of a wooden frame type building and a base. Reinforcement metal parts,-Japanese Patent Application Laid-Open No. 3-295946 discloses an extruded dowel fitting, and a wall foundation structure of a framed wooden building using the same.
A joint structure of a wooden structural material without disassembling a wooden frame is disclosed. In each of these, fittings, bolts, and nuts are used for joining between structural members. The connection structure is disclosed in JP-A-63-14939 and JP-A-63-149.
40 and 63-14941 disclose a joint structure in a wooden frame structure for the purpose of improving the structural strength of the joint structure.

[0003]

However, the above-mentioned conventional joints and connection structures have a problem that the number of parts such as bolts, nuts and washers is large at the time of construction, and the fixing work is complicated and workability is poor. . In addition, there is a problem in that the metal fittings are large and heavy and lack transportability, and also lack safety when working at heights. At the time of construction, it takes time and trouble to attach fittings and the like, and it is necessary to embed a cylinder or plug member pierced in a predetermined position at a predetermined position, and screw a bolt to the pierced part of the buried cylinder or plug. However, there is a problem that it is difficult to work, the workability is poor, a large number of work steps are required, and the work period is prolonged. In the case where the wood is fixed with bolts and nuts, the tightening force is lost in a few years due to the shrinkage of the wood, and there is a problem that looseness is likely to occur and the physical strength is reduced, and metal such as bolts, nuts, metal fittings etc. The parts are oxidized due to dew condensation etc. and the durability deteriorates.In addition, imported materials contain salt due to marine storage, and the salt causes corrosion of bolts and metal fittings, physical strength deteriorates and durability deteriorates. there were. In addition, at the time of fire, there is a problem in disaster prevention that the external joining bolts and metal fittings are melted first, so that the strength cannot be expected and the house collapses. Furthermore, the biggest drawback of the frame structure using wood is the brittleness of the joints.Since ancient times, various connections and joints have been devised by carpenters and the like to maintain physical strength. There is a problem in that it is complicated and requires many man-hours for the processing, resulting in poor productivity.
Further, there is a problem in that large-sized timbers and the like are difficult to obtain due to a small production amount, and that long span beam arches, trusses, and the like such as wooden or glued laminated timber cannot be transported due to regulations such as the Road Traffic Law.

The present invention solves the above-mentioned conventional problems. The conventional complicated joints and joints have an extremely simple structure, and the joints and joints are improved in joint strength by using together with an adhesive. Alternatively, it is an object of the present invention to provide a connector suitable for mass-production at a low cost, which has a simple structure capable of significantly increasing the workability of joining and significantly shortening the construction period, significantly reducing the number of production steps, and being low in cost.

[0005]

To achieve this object, the present invention comprises the following arrangement. Connectors <br/> according to claim 1 in cross section is formed circular, elliptical, to a prescribed portion of the other end portion or its vicinity from a predetermined portion of the end or near the longitudinal direction of the outer peripheral polygonal A rod-shaped member having a concave portion, one end of the rod-shaped member is open at an end or near a predetermined portion of the rod-shaped member, and the other end is extended by a predetermined length from the other end or the predetermined portion of the rod-shaped member. An adhesive-injecting pipe-shaped portion to be fitted and fitted, and a shape formed on at least one side surface of the rod-shaped member.
And a guide groove for the formed adhesive . The connector according to claim 2 is the connector according to claim 1,
A pipe-shaped branch pipe is removably inserted into one opening of the adhesive-injected pipe-shaped section. According to a third aspect of the present invention, there is provided a connector having a rod-like shape having a cross section of a circle, an ellipse, or a polygon, and having a concave portion formed from a predetermined portion near or at one end in the longitudinal direction of the outer periphery to a predetermined portion near the other end or near the other end. Adhesive fitted to the member and the recess
A pipe which is removably inserted into a hole formed in a predetermined portion in the longitudinal direction of the agent-injecting pipe-shaped portion and the adhesive-injected pipe-shaped portion, or which is integrally formed in a predetermined portion in a T-shape. -Shaped branch pipe , formed on the side surface of at least one end of the rod-shaped member
And a guide groove for the adhesive . Bonding tool according to claim 4 in any one of claims 1 to 3, wherein said guide groove of the rod-shaped member recess
Are connected to the guide groove, and
At least one opening is open . Bonding tool according to claim 5, in any one of claims 1 to 4, wherein the adhesive injection pipe-like portion to which the fitted in the recess of the rod-like member, the rod-shaped member with welding or adhesive Has a configuration that is fixedly attached to the device. Bonding tool according to claim 6, to claim 1
In any one of 4 , the adhesive-injection pipe-shaped portion fitted into the concave portion of the rod-shaped member is fixed by a metal wire such as a stainless steel wire or a string made of a synthetic resin made of nylon fiber or the like. It has the configuration that has been done. According to a seventh aspect of the present invention, there is provided the connector according to any one of the first to sixth aspects, wherein a ridge, a protrusion, or an uneven portion such as a spiral is formed on an outer peripheral surface of the rod-shaped member. I have.

[0006] Here, the rod-shaped member cross-section is substantially circular connectors, substantially oval, or triangular, square, metal or carbon fiber such as iron having a substantially polygonal shape such as a hexagon, boron fiber, glass fiber Made of composite material of organic or inorganic fiber such as metal fiber and synthetic resin and synthetic resin, ceramics using cement etc. and its composite product, etc. The portion is formed from a predetermined portion near or at the other end to a predetermined portion near the other end.
The rod-shaped members may be formed with the same diameter or different diameters. Further, a joint such as a screwing means may be formed at an end of the rod-shaped member, and a plurality of rod-shaped members may be joined to a length corresponding to a construction place to form a rod-shaped member having a predetermined length. The ridges and irregularities formed on the outer surface of the rod-shaped member are formed by continuous ridges or discontinuous protrusions formed at random, or adhered from the other end of the rod-shaped member such as a spiral. It is desirable that the adhesive be formed between the outer surface of the rod-shaped member and the peripheral wall of the communication hole of the structural member so as to function as a buffer for the agent and expand the bonding area and provide an anchor effect. Depending on the construction location and the type of adhesive (strongly viscous), one or several ridges may or may not be formed at the end of the rod-shaped member or branch pipe on the adhesive return side. Further, the width and depth of the uneven portion such as a spiral groove may be changed according to the viscosity of the adhesive. The shape of the side surface of at least one end of the rod-shaped member may be any of a swelling shape, a flat shape, and a concave shape, but it is efficient to properly use it depending on the application and the type of the structural member. For example, between wood and laminated wood, a swelling thing can be inserted by pressing wood chips, etc., and in the case of concrete or stone, a concave part can be inserted while crushing the convex part in the hole, For the mirror-finished hole, a flat one is preferably used. The cross-sectional shape of the recess formed in the longitudinal direction of the outer surface of the rod-shaped member is V-shaped, U-shaped, semicircular, square, etc., as appropriate according to the shape of the pipe-shaped portion for the adhesive to be fitted. Selected. The depth of the concave portion is appropriately selected according to the type and size of the rod-shaped member, or the shape of the adhesive injection pipe-shaped portion. When a guide portion such as an adhesive guide groove for guiding the injected adhesive to the outer surface is formed at the end of the rod-shaped member, the adhesive can be smoothly guided between the surface of the rod-shaped member and the peripheral wall of the communication hole. The workability of the injection of the adhesive can be improved. It is possible to prevent rotation of the rod-like member by piercing the inserted protrusion part to the joint hole portion connectors to form an acute angle of the protrusion on the outlet side of the adhesive rod-like member to the bottom of the joining hole . In particular to prevent the opening of the adhesive injection pipe-shaped portion by solving the engagement of branch pipe rod-like member from escaping with rotation or branch pipe the connectors when extracting the branch pipe, increase reliability, workability Can be. The adhesive injection pipe-shaped portion and the branch pipe are formed of a tubular material and are formed of the same material as the rod-shaped member. It is preferable that the pipe-shaped portion and the branch pipe for injecting the adhesive are made of synthetic resin or thin metal, since the length can be adjusted on the spot according to the construction site and the length can be adjusted. The cross section of the pipe-shaped portion or branch pipe for injecting the adhesive is formed into a round shape, a polygonal shape such as a triangle or a square, or a kamaboko shape. The method for engaging the adhesive-injection pipe-shaped portion with the branch pipe is such that a screw hole is formed in the engagement portion of the adhesive-injection pipe-shaped portion and the engagement portion of the branch pipe, and the fitting is performed by screwing or by forming a fitting portion or the like. They may be engaged at the same time. Also, irregularities such as ridges may be formed on the surface of the pipe-like portion for adhesive injection . This is because the function as a buffer of the adhesive is obtained. It may facilitate the injection of the adhesive to the bonding tool in accordance with the construction place by forming a branch pipe. After injecting the adhesive,
The rod may be removed by disengaging from the rod-shaped member, or may be left as it is if there is no problem when plugging the branch pipe or the like is short. The pipe-like portion for injecting the adhesive or the hollow portion of the branch pipe is desirably mirror-finished in order to reduce the inflow resistance of the adhesive. However, when the viscosity of the adhesive is low, the mirror-finishing is not required. The adhesive is appropriately selected depending on the type of structural member such as wood and wood, glued laminated wood and glued wood, wood and glued laminated wood, wood and glued laminated wood and stone, concrete structure, and stone and concrete structured body. Specific examples include an organic adhesive such as an epoxy-based or polyurethane-based adhesive and an inorganic adhesive such as a mortar. In addition, it is desirable to perform the two-stage injection, the pressure injection, and the like for the injection of the adhesive in the case of wood, laminated wood, or a concrete structure. This is to prevent the adhesive from being absorbed by the type of wood, glulam, and concrete, thereby preventing the amount of the adhesive from being insufficient and the adhesive strength from being reduced. As structural members, there are used timber such as prisms, wood such as laminated wood or laminated boards, stone materials such as stone pillars, concrete columns, beams, walls, and the like. Bonding hole formed in communication between the structural member is one or a plurality perforated contact surface between a plurality of structural members in accordance with the shape of the connectors, and the maximum diameter of the rod of the diameter connectors is substantially equal to or slightly larger form, its depth is at least accommodated against
It is desirable that it be formed to be the same as or slightly deeper than the length of the fitting . This is because the workability of perforation and the amount of adhesive used are reduced. The formation of the joint hole is performed by drilling on site with a drill, etc.
Alternatively, it may be formed in advance at a factory by a precut method or the like. One or a plurality of joining holes are formed substantially perpendicularly, obliquely, obliquely, parallelly, or the like with respect to the contact surface according to the construction site. In addition, it is preferable to apply an adhesive to the contact surface around the joining hole so that the structural strength can be further improved. After the injection of the adhesive into the joining hole is completed, the finished surface can be made beautiful by covering with a plug or a buried tree or the like or making it flush with a putty or the like.

[0007]

With this configuration, an adhesive is applied to the outer surface of the rod-shaped member.
Because only forms the abutment or recess for engagement of the injection pipe-shaped portion can be made very easily connectors. In addition, since the pipe-shaped portion for injecting the adhesive can be selected according to the joining place, the workability and the flexibility of the work can be improved or expanded. Joints between structural members bend the bonding tool <br/> metal or the like is embedded and fixed, tensile, compressive, stress can be greatly improved to shear or the like. Also,
The type, diameter, length, and number of joints can be changed according to the strength required for the joint . Since the joining holes are filled with the joining tool and the adhesive on the outer periphery thereof, the mechanical strength against bending stress and the like can be improved, and since the joining tool is covered with the adhesive, it is oxidized by dew condensation or the like. Or vulnerable to salt damage. In addition, since the joining method is simple and the joining strength is strong, it is possible to easily repair an existing building. The joining method simply forms a joining hole or cutting part on the contact surface of each structural member, inserts and embeds a joining tool , and injects adhesive, so that the working process can be extremely simplified and the number of working steps can be reduced. . Since a complicated metal fitting having a large number of parts is not used, it is possible to prevent damage to the material due to incorrect mounting. In addition, contact
By burying the fittings in the wood, the interior is protected by the carbonized film on the wood surface in the event of a fire, the melting of the fittings is prevented, the structural strength is maintained, and the building is prevented from collapsing and the safety is enhanced.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. (Example 1) FIG. 1 is a perspective view of the connectors of the first embodiment of the present invention, FIG. 2 (a) is a side view thereof, FIG. 2 (b) is the outflow end portion side of the adhesive of a main part perspective view, FIG. 3 is a partial front view of the end side showing an application example of the cross-sectional shape of the rod of connectors, cross-sectional end view Figure 4 showing a recess of the rod shape of a round bar It is. 1 metal connectors of the first embodiment, 2 is metallic round bar-shaped rod-like member, 3 is the bar-like member 2 formed in the bulging shape
The adhesive-outflow-side end 4 has two projections projecting at symmetrical positions of the tip of the adhesive-outflow-side end 3, and 5 extends from the end to the end of the outer surface of the rod-shaped member 2. A concave portion formed in a substantially U-shape, 6 is a concave and convex portion formed in a spiral shape on the surface of the rod-shaped member 2, 7 is one end at the end of the concave portion 5 of the rod-shaped member 2, and the other end is a rod-shaped member and extended from the second other end portion is fitted into the concave portion 5 against
The adhesive-injecting pipe-shaped portion 8 is an adhesive guide groove formed in a concave shape on the surface of the adhesive outflow end 3 formed in a bulged shape. In FIG. 3, (a) shows a rod-shaped member 2 having a substantially circular cross-sectional shape, which facilitates insertion of the rod-shaped member 2 into a rough joint hole formed in wood or the like. 2B, the cross-sectional shape of the rod-shaped member 2 is formed in a substantially elliptical shape, and is intended to disperse and reinforce external force, such as joining a base and a column, and prevent rotation of the member. Particularly, the bending stress from the major axis direction is enhanced.
(C) to (e) are formed in a substantially square, rectangular, substantially hexagonal, or substantially triangular shape, and are suitable for preventing rotation between members and joining. In addition, in the application examples (b) to (e), since the rod-shaped member does not rotate, the projection 4
Is not formed. In FIG. 4, the shape of the concave portion is appropriately selected according to the shape of the pipe-shaped portion for injecting the adhesive and the construction place. Also, depending on the shape of the recess and the type of adhesive,
The pipe-shaped part for agent injection can be appropriately selected. The joining method of the structural members and the joining structure between the structural members will be described below using the joining tool of the first embodiment configured as described above. (Construction Example 1) FIG. 5 is a perspective view at the time of joint joining such as a through pillar and a body insertion using the joint of the first embodiment of the present invention, and FIG. FIG. 6B is a cross-sectional view of a main part of the center of the bonding hole showing a state after the joint bonding is performed. 9 is in contact with the rod-shaped member 2
A metal wire made of a stainless steel wire or the like for fixing the pipe-shaped portion 7 for injecting the adhesive , 10a is a cutting such as a through pillar, 10b is a receiving material such as a trunk, 11 is a joint between the cutting 10a and the receiving material 10b. The surface 12 is a joining hole formed so as to communicate with the joining surface 11 between the cutting 10a and the receiving member 10b, 13 is an opening of the joining hole 12, and 14 is a joining hole 12 after the joint joining.
A stopper made of wooden or synthetic resin or the like that covers the opening 13 and is flush with the surface of the column material, 15 is a gun for injecting adhesive, and 16 is
The bonding hole 12 is injected from the adhesive-injecting pipe 7 and fills the bonding hole 12 through the adhesive guide groove 8.
The adhesive is filled until the outflow is visually recognized in the opening 13. First, the joining surface 1 of the cutting 10a and the receiving material 10b
Connectors 1 than the diameter of the connectors 1 communicates with the 1 bit at a thicker diameter
Is formed with a drill or the like so as to have a depth such that the center of the hole comes to the joint surface 11. The pipe-like portion 7 for injecting the adhesive is fitted into the concave portion 5 of the rod-shaped member 2 in the joining hole portion 12, and the joining tool 1 fixed by the metal wire 9 is inserted, and the projection 4 is placed on the bottom of the joining hole portion 12. Insert and insert. Adhesive injection gun 15 is attached to the opening of pipe-shaped portion 7 for adhesive injection. Next, the adhesive 16 is passed through the hollow portion of the pipe 7 for injecting the adhesive, and filled in the opening 13 of the hole 12 for joining until the adhesive 16 is visible in the opening 13 of the hole 12 for joining. Fill 12 As shown in FIG. 6 (a), the filling of the adhesive 16 is performed as shown by the arrow in the adhesive injection pipe-shaped portion 7.
To fill the gap between the surface of the rod-shaped member 2 and the peripheral wall of the joining hole 12. At this time, channeling or short path of the adhesive 16 is prevented by the buffer effect of the uneven portion 6 on the surface of the rod-shaped member 2, and the adhesive 16 is filled with almost no leakage in the gap. Further, when the injection of the adhesive 16 is continued, it can be visually observed that the adhesive 16 rises while filling the gap between the outer surface of the adhesive injection pipe-shaped portion 7 and the bonding hole 12, thereby preventing uneven filling. Hole 1 for joining
When the adhesive 16 is visually recognized in the second opening 13, the engagement between the adhesive injection gun 15 and the adhesive injection pipe 7 is released. At that time, since the rod-shaped member 2 is fixed to the bottom of the joining hole 12 by the projection 4, it does not rotate or come off. Next, the plug 14 is covered with the opening 13 of the joining hole 12 flush. If the spigot 14 is made of the same material as that of the cutting 10a, it can be integrated with the cutting 10a without discomfort when the plug 14 is covered flush. In the present embodiment, a rod-shaped member having a circular cross section is used. However, if a cross-section having a rectangular shape, a triangular shape, or an elliptical shape is used, the rotation of the bonding material on the connection surface can be achieved simply by inserting a bonding tool. Since workability can be prevented, workability can be further improved. (Experimental Examples 1 and 2) Seven sets of test pieces for a joint assembly were prepared using two sets of 10.5 cm square and 115 cm long cedar materials. The test piece was made by drilling a hole with a diameter of 18φ from the opposite side of the cedar wood orthogonal to the abutting joint surface and drilling a hole 5 cm deep into the other cedar joint surface at each of the center lines. 2 at 2.5cm from the end
Four sets of test specimens with perforations formed to form joint holes, and four test specimens 3 perforated at 3.5 cm from the diagonal vertex
A set was made. Next, a 14 cm long metal bond is applied to a rod-shaped member having a diameter of 15 mm, a length of 10 cm, and a depth of a recess of 5 mm.
The joints fixed with stainless steel wire with the pipe-shaped part for injection and the one end to the end of the rod-shaped member are attached to each joint hole, and the cedar materials are brought into contact with the joint surface to support After the joint is temporarily fixed with a jig or the like, a polyurethane-based adhesive is filled from the adhesive injection pipe-shaped portion with an adhesive injection gun, and the return is visually observed at the opening. After a predetermined time, the support jig was removed to prepare a test body. Using this specimen, a tensile test of the joint was performed. The results are shown in (Table 1).

[Table 1] (Comparative Examples 1 to 4) As comparative examples, three sets of cedar wood having the same diameter and length as in Experimental Example 1 were used, and only Kiguchi bonding was performed without using a joint (Comparative Example 1). , Two sets of chasing large splices (Comparative Example 2), one set of sickle splicers (Comparative Example 3), and three sets of ant joints (Comparative Example 4). Next, a tensile test was performed under the same conditions as in Experimental Example 1. The results are shown in (Table 1). However, a pulling large splice and a perforated sickle were subjected to a tensile test using a joint. As is apparent from Table 1, the test example has a tensile strength of 60 kg / cm2 or more.
The comparative example has only 16 kg / cm2 to 40 kg / cm2, the dovetail joint has only a 2-3 kg / cm2 tensile strength (proof stress), and the rigidity of the base material of the present experimental example also shows the rigidity. In some cases (19.69 tf / mm), the rigidity was found to be 40 to 250 times that of the comparative example. or,
It was also found that the use of the adhesive alone increased the rigidity, but showed a large variation in the proof stress, and the safety of the joint was maintained by the utility of the connector.
As described above, according to the present embodiment, it is possible to obtain a joint structure with excellent mechanical strength by performing a very simple process of forming a communication hole with a drill, and a very simple operation. I knew I could do it. Also, in the case of wood and the like, it was found that the bonding strength can be increased by inserting a bonding tool in parallel with the fiber direction. It has been found that when a laminated material or the like whose fiber direction is perpendicular to the two axes is used, it has extremely high strength even when used regardless of the fiber direction. Further, since it is possible to visually confirm that the adhesive 16 is sufficiently distributed, a strong joint structure without adhesion unevenness can be obtained. In addition, in the present embodiment, the joints are buried in the case where the woods are joined from the outside with the conventional joints , so that the joints are protected by the carbonized coating on the surface of the wood in the event of a fire, and as a result, pillars, beams, etc. It was found that it prevented the collapse of fire and significantly improved fire resistance and safety. From this, it can be said that it is possible to take much time until the house collapses in the event of a fire in a wooden house or the like, which brings a great effect on rescue of human lives and the like. It was also found that the joints can be used as the core material of the joint and the adhesive and can cope with tensile or bending shear stress, so that accidents such as dismantling during construction can be prevented. From these facts, it was found that a long column or plate having excellent mechanical strength can be obtained very easily. Also, contact on to maintain the strength against external force such as earthquakes and typhoons mechanical strength even after completion connectors buildings
Since the fitting is coated on the surface with the adhesive, it can be prevented from rusting due to dew condensation or the like and expanding and breaking stones or concrete. Embodiment 2 FIG. 7 is a perspective view of a connector according to a second embodiment of the present invention. The connectors 1a of the second embodiment is different from the connectors of the first embodiment, the adhesive injection pipe-shaped portion 7a rod member 2a
Are bent and locked at both ends, and a branch pipe 17 is screwed into one opening thereof. As described above, according to the present embodiment, since the adhesive injection pipe-shaped portion 7a can be locked only by bending the rod-shaped member 2a, the adhesive injection pipe-shaped portion 7a can be locked.
Can be extremely easily mounted on the rod-shaped member 2a, and even when the joining hole is deep, a joining structure having a high yield strength at a predetermined portion can be obtained by extending the branch pipe. Third Embodiment FIG. 8 is a partial cross-sectional end view of a connector according to a third embodiment of the present invention, and FIG. 9 is an overall perspective view thereof. Joining of the third embodiment
Ingredients 1b first embodiment and differs from the connectors of the second embodiment, a pipe-shaped branch pipe 17a is adhesive injection pipe-shaped portion 7
a that the screw is to be screwed into the branch pipe hole 18 formed in the center of the a, and that the openings at both ends of the adhesive injection pipe 7 are opened in the adhesive guide groove 8. It is. A description will be given below of a joining method of a structural member using the joining device of the third embodiment configured as described above and a joining structure between the structural members. FIG. 10 is a perspective view of a main part at the time of abutment construction used for joining a beam or a girder using the joint of the third embodiment of the present invention, and FIG. It is principal part sectional drawing of a center. Reference numeral 12 denotes bonding holes formed in the butt bonding surface 11, 10a, 10b.
Is a cutting material such as a beam material for butt joint and a receiving material, 19 is a branch pipe mounting groove formed by cutting the mounting surface of the joining hole 12 for mounting the branch pipe 17a , and 18 is a branch pipe mounting groove 19 15 is an adhesive injection gun, 16 is a bonding hole which is injected from the branch pipe 17a and passes through the adhesive injection pipe 7b.
The adhesive is filled while filling 12 until a return is visually recognized in the opening 18 of the branch pipe mounting groove 19 . The construction of the present embodiment is performed in such a manner that the abutment 10a and the receiving member 10b are connected to the abutting surfaces of the butt 10a and the receiving member 10b and have a diameter substantially equal to the diameter of the joint 1b.
A joint hole 12 having a depth such that the central portion of the joint 1 comes to the joint surface 11 of the cutting 10a and the receiving member 10b and a contact surface of one of the joint holes 12 which communicate with the branch pipe 17a. A branch pipe mounting hole 19 is formed. Next, the joining tool 1b in which the branch pipe 17a is engaged is inserted into the joining hole 12 communicating with the contact surface, and the cutting 10a and the receiving material 10b are brought into contact with each other and temporarily fixed with a support jig or the like. Next, the adhesive injection gun 1
5, the adhesive 16 is filled with the adhesive 16 through the adhesive injection pipe-shaped portion 7b as shown by the arrow in FIG. 11, and the surface of the joining tool and the peripheral wall of the joining hole 12 are filled. Example 1
Fill in the same way as. Next, a structural strength test was performed on this construction example, and the results will be described. As (Experimental Examples 4 and 5) connectors, the diameter of the metal is 15Fai, the diameter of the hollow portion 5φ
A branch pipe and a cedar material of Experimental Example 1 were prepared except that three bodies each having a length of 10 cm and a length of 36 cm (Experimental Example 5) were used. A hole with a diameter of 18φ and a length of about 6cm (Experimental Example 4), and a diameter of 18φ and a length of 2.5cm from both ends of the center crossing line of the end of each cedar wood Pierced a hole (Experimental Example 5) of about 19 cm to form a joint hole. Next, as shown in FIG. 10, two branch pipe mounting grooves were formed by a router on one of the pair of cedar materials in parallel from the joint holes toward both outer sides. Experimental examples 4 and 5 in two joint holes and a branch pipe mounting groove of a pair of cedar wood
After attaching the joints of each to the two cedar materials and fixing them with the support jig, polyurethane adhesive is filled from the branch pipe with the gun for injecting adhesive and the return pipe is visually observed at the opening, and then the branch pipe is removed. Plugged. After the adhesive was solidified, a bending strength test was performed according to a conventional method. The results are shown in (Table 2) and (Table 3).

[Table 2]

Table 3 (Comparative Examples 6 and 7) Using the cedar material of Experimental Example 1, test specimens of sickle-joining and chasing large splicing were prepared, and a bending test was performed in the same manner as in Experimental Example 4. The results are shown in (Table 2) and (Table 3). As is clear from Tables 2 and 3, the flexural strength (kgf) of the present embodiment is from 330 kgf to 1100 kgf, whereas the sickle of the comparative example is 100 kgf, and the chasing large splicing is performed. It was only up to 450kgf. From the above, it was found that by changing the length and number of jigs, it was possible to easily join with bending strength that cannot be exceeded conventionally. Also, the rigidity of this embodiment is 1
It was found that the stiffness was close to the real thing and could be higher than the conventional comparative example. From this, according to the present embodiment,
It was found that the span could be widened and the pin structure in the design changed from a pin structure to a structure close to a rigid joint (close to a ramen structure), which could give width and breadth to the design. As is clear from this structural strength test, the joining method of the present embodiment can obtain the same rigidity as a single product despite the extremely simple joining method compared to the conventional joining method. It is possible to easily obtain beams, trunks, and the like having a long span with a large cross section, which have been difficult to obtain. Also, scrap materials can be effectively used.

Embodiment 4 FIG. 12 is an overall perspective view of a connector according to a fourth embodiment of the present invention. 1c bonding tool of Example 4, 2c are rod-shaped member recess for engagement is formed to a predetermined portion, 2'c has a recess cement foundation worn to a predetermined portion of the outer peripheral surface for concrete embedding, the ends A concrete buried portion having an anchor portion 2 ″ c formed therein, one end of which is opened in the adhesive guide groove 8 and the other end is bent at a right angle at a predetermined portion of the rod-shaped member 2c, is erected, fitted and fixed. Pipe for injection of adhesive , 17b
Is a pipe-shaped branch pipe attached to the opening at the end of the adhesive injection pipe-shaped section 7c. The connectors in the fourth embodiment of the present invention configured as described above will be described joining method of the structural member.

(Example 4 of Construction) FIG. 13 is a cross-sectional view of a main part of the center of a joint hole at the time of jointing a column, a base, a concrete foundation, and the like using the joint of the fourth embodiment. 21 is a concrete foundation, 22 is a base joined to the concrete foundation 21, 23 is a column joined to the base 22, 24 is an adhesive formed on a contact surface of the base 22.
A groove 25 for mounting an end portion of the pipe-shaped portion for injection is an opening of the groove 24 for mounting an end portion of the pipe-shaped portion for adhesive injection . First,
The concrete foundation 21 is completed by burying the concrete buried portion 2'c of the joint 1c at the time of placing the concrete foundation 21. Next, the joining tool 1 is attached to the contact surface of the base 22 and the pillar 23.
The joining hole 12 is drilled with a drill or the like to a depth slightly larger than the diameter of c so that the remaining portion embedded in the concrete foundation 21 is embedded in the base 22 and the pillar 23. Base 22
Groove 24 for mounting the end of the pipe-shaped portion for injecting the adhesive
To form Next , the pipe-like portion 7 for injecting the adhesive, in which the branch pipe 17b is attached to the rod-like member 2c in the joint hole 12 of the base 22,
and inserting the connectors 1c obtained by fitting the c abut the concrete foundation 21 and the base 22 and the bar 23. Then, the adhesive injected adhesive 16 as shown by the arrow in the adhesive injection gun 15
The adhesive 16 is injected until the adhesive 16 returns to the opening 25 of the groove portion 24 for mounting the pipe-shaped end portion of the pipe, and when the adhesive 16 is visible, the adhesive injection gun 15 is removed and the plug 15 is plugged into the opening 25 ( (Not shown)) and finish the construction. As is clear from this embodiment, wood and concrete, stone or the like can be easily joined by using a joint having an anchor portion.

[0011]

As described above, according to the present invention, since the joining tool has an extremely simple structure in which the pipe-like portion for injecting the adhesive is fitted into the concave portion of the rod-like member, the handling is extremely easy and the joining is possible.
Since the tool is inserted inside the wood or the like and coated with an adhesive, salt damage and dew condensation can be prevented, and the durability of the joint structure can be remarkably improved without causing corrosion or the like. Also, connectors can increase the added value of the structure can be excellent Joint joint structure aesthetics because not visible from the outside. In the event of a fire, the internal joints are protected by the carbonized coating of the wood and do not undergo thermal deformation, so that they can be prevented from collapsing and the evacuation time can be secured. By using a plurality of joints, the progress of the damaged portion can be suppressed to a minimum, and the safety can be significantly improved. Also, in conventional buildings, especially wooden structures, the joints are variously processed and thinned, so they are susceptible to tensile compressive stress, bending stress, and shear stress.To compensate for this, structural members such as wood must be made thicker or thicker than necessary. Or subsidized, but in the case of this application
The strength can be artificially controlled by changing the shape, diameter, length, and number of the joints, so that the construction can be performed according to the required strength of the joint. In addition, by joining using a commercially available prism, a prism having a large cross section, a beam having a long span, and the like having excellent structural strength can be easily manufactured on site. Furthermore,
Since it is the rigidity of the joint portion by the combined use of a jig or the like and an adhesive to obtain the same stiffness and strength as one real almost timber or the like can be carried out high-rise such as a three-storey also sufficient, and little bonding during construction because such effect immediately obtained during construction of the workability, in which it is possible to realize an excellent connectors in mass productivity at low cost, which can significantly improve the labor saving and rationalization.

[Brief description of the drawings]

Perspective view of the connectors of the first embodiment of the present invention; FIG

2 (a) side view (b) a main part perspective view of the outflow end portion side of the adhesive bonding device of the first embodiment of the present invention in connectors of the first embodiment of the present invention

Partial front view of the end side showing an application example of the cross-sectional shape of the rod-shaped member of the connectors of the first embodiment of the present invention; FIG

FIG. 4 is a cross-sectional end view showing a concave portion of the round bar-shaped member according to the first embodiment of the present invention.

5 is a perspective view of the time Joint welding work of continuous columns and a body feed or the like using the connectors of the first embodiment of the present invention

FIG. 6 (a) is a cross-sectional view of a main part at the center of a joining hole showing a state at the time of joint joining using the joining tool of the first embodiment of the present invention. (B) A first embodiment of the present invention. Sectional view of the main part of the center of the joint hole showing the state after the joint joining work using the joining tool

Figure 7 is a perspective view of the connectors in the second embodiment of the present invention

FIG. 8 is a partial cross-sectional end view of a connector according to a third embodiment of the present invention.

FIG. 9 is an overall perspective view of a connector according to a third embodiment of the present invention.

FIG. 10 is a perspective view of a main part at the time of abutment construction used for joining a beam or a girder using the joint of the third embodiment of the present invention.

FIG. 11 is a cross-sectional view of a main part of the center of a joining hole at the time of abutment using the joining tool of the third embodiment of the present invention.

FIG. 12 is an overall perspective view of a connector according to a fourth embodiment of the present invention.

FIG. 13 is a cross-sectional view of a main part at the center of a joint hole at the time of jointing a column, a base, a concrete foundation, and the like using the joint of the fourth embodiment of the present invention.

[Explanation of symbols]

1, 1a, 1b, 1c connectors 2, 2a, 2b, 2c rod-like member 3 is formed on the adhesive outlet side end portion 4 protruding portion 5 the recess 6 spiral shape the concavo-convex portion 7, 7a, 7b adhesive injection pipe Shaped portion 8 Adhesive guide groove 9 Metal wire 10a Cutting tree 10b Receiving material 11 Joining surface 12 Joining hole 13 Opening 14 Plug-in 15 Adhesive injection gun 16 Adhesive 17 , 17a, 17b Branch pipe 18 Branch pipe hole Reference Signs List 19 branch pipe mounting groove 20 branch pipe mounting groove opening 21 concrete foundation 22 foundation 23 pillar 24 adhesive injection pipe-shaped end mounting groove 25 adhesive injection pipe-shaped end mounting groove opening

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/48 E04B 1/26 E04B 1/58 501

Claims (7)

(57) [Claims] 1. A rod-shaped member having a cross section of a circle, an ellipse, or a polygon, and having a concave portion formed from one end or a predetermined portion in the vicinity thereof to one end or a predetermined portion in the vicinity of the other end in the longitudinal direction of the outer periphery.
One end of the rod-shaped member is open at an end or near a predetermined portion of the rod-shaped member, and the other end is extended by a predetermined length from the other end or the predetermined portion of the rod-shaped member, and is bonded. Dosing
An input pipe-shaped part and at least one end of the rod-shaped member
A bonding tool , comprising: a guide groove for an adhesive formed on a side surface . 2. A bonding tool according to claim 1, characterized in that the pipe-shaped branch pipe to an opening portion of the adhesive injection pipe-shaped portion is inserted detachably. 3. A bar-shaped member having a cross section of a circle, an ellipse, or a polygon, and having a concave portion formed from a predetermined portion near or at one end in the longitudinal direction of the outer periphery to a predetermined portion near the other end or near the other end.
An adhesive injection pipe-shaped portion to be fitted in the recess, the
A pipe-shaped branch pipe detachably inserted into a hole formed in a predetermined portion in the longitudinal direction of the adhesive-injecting pipe-shaped portion or integrally formed in a T-shape with the predetermined portion ; Few
Adhesive guide groove formed at least on one side
And a connector comprising: 4. The guide groove of the rod-shaped member communicates with the recess, and the guide groove has an opening at at least one end of the adhesive injection pipe-shaped portion. or joint device according to any one of the 3 5. An adhesive fitted into the recess of the rod-shaped member.
Injection pipe-like portion, connectors according to any one of claims 1 to 4, characterized in that it is secured to the rod-shaped member with welding or adhesive. 6. An adhesive fitted into the recess of the rod-shaped member.
Injection pipe-shaped portion, one of claims 1 to 4, characterized in that it is fixed with a stainless wire metal wire or synthetic resin strands of material consisting of nylon fibers such as such as 1
3. The connector according to 1 . 7. The method of claim 1 to 6, characterized in that ridges or protrusions or uneven portions on the outer peripheral surface of the bar-like member is formed
Junction device according to any one of the.