JP3535861B2 - Jointing tool and method for joining building structures using the same - 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 tool for joining timbers, laminated timbers or stones, or timbers or laminated timbers to stones or concrete, a wooden house using the same, and a large wooden structure having a large cross-section structure. The present invention relates to a method for joining building structures such as a joint structure and a joint of building structures such as a frame structure.

[0002]

2. Description of the Related Art In recent years, for the purpose of labor saving and rationalization of construction work for houses, etc., a connecting tool for the purpose of joining beams and eaves girders, eaves girders and columns, girders and through columns, etc., or rationalization of construction The intended joint structure and joint structure have been developed. For example, Japanese Utility Model Laid-Open No. 63-162008 discloses a frame fitting used for a wooden frame construction method, and Japanese Utility Model Laid-Open No. 2-93401 discloses a joint between a lower end of a pillar and a base of a wooden frame building. Reinforcement hardware, Japanese Laid-Open Patent Publication No. 3-295946 discloses a dowel fitting, and a wall foundation structure for a wooden frame construction using the metal fitting.
Disclosed is a joint structure of a wooden structural material in which a wooden frame is not disassembled. In all of these, metal fittings, bolts and nuts are used to join the structural members. Further, as a joint structure, there are Japanese Patent Laid-Open Nos. 63-14939 and 63-149.
40, 63-14941 discloses a joint structure in a wooden frame structure for the purpose of improving the structural strength of the joint structure. However, the above-described conventional connector and joint structure have a problem in that the number of parts such as bolts, nuts, washers, etc. is large at the time of construction and the fixing work is complicated and the workability is poor. In addition, the metal fittings are large and heavy, lacking in portability, and have a problem in safety when working in high places. It takes time and effort to install the metal fittings during installation, and it is necessary to bury the cylinder or plug member drilled in the specified position at the specified position, and bolts are screwed to the hole of the buried cylinder or plug. It is difficult to do so, the workability is poor, a large number of work steps are required, and the construction period is prolonged.
When timbers are tied together with bolts and nuts, there is also the problem that the tightening force is lost due to the shrinkage of the timber in a few years, looseness is likely to occur, and the physical strength decreases, and metal such as bolts, nuts, metal fittings, etc. There is a problem that the part is oxidized due to dew condensation and the durability is reduced, and the imported material contains salt because it is a marine storage tree, and the salt content corrodes bolts and metal fittings, which deteriorates the physical strength and durability. there were. Also, in the event of a fire, there was a problem in disaster prevention that the external bolts and metal fittings would melt first and the strength could not be expected, and the house would collapse. Furthermore, the biggest drawback of the frame structure using wood is the brittleness of the joint, and various joints and joints have been devised by ancient carpenters to maintain their physical strength.
All of these structures have a problem that they are complicated and require a lot of man-hours to process them, resulting in poor productivity. Further, there is a problem that large-section timber and the like are difficult to obtain due to a small production amount, and that long-span beam arches and trusses such as wooden or laminated wood cannot be transported due to regulations such as the Road and Traffic Law. Therefore, as a result of intensive studies to solve the above conventional problems, the present inventor has made the conventional complicated joint and joint structure an extremely simple structure, and improves the structural strength by using it in combination with an adhesive. A joint tool that can significantly improve the workability of joints, joints or joints and can shorten the construction period significantly, and by using it, production that simplifies the processing technology of joints, joints or joints and significantly reduces the number of work steps. The joining method of structural members having excellent properties and the joining structure between structural members having excellent structural strength and high disaster prevention effect have been completed, and Japanese Patent Application No. 4-164402, Japanese Patent Application No. 5-112261, Japanese Patent Application No. 5-117908, Patent applications were filed as Japanese Patent Application No. 5-139937, Japanese Patent Application No. 5-294289, and Japanese Patent Application No. 5-294748.

[0003]

However, the above-mentioned invention remarkably improves workability, workability, and productivity as compared with the conventional metal fittings and construction methods, and is extremely excellent in disaster prevention effect and increase in proof strength of the joint. However, it was found that there are the following problems in disaster prevention. That is, when bending, pulling, compressing, shearing, etc. act on structural members such as wood, the adhesive integrated with the connector bends to the limit where the wood breaks,
After resisting pulling, compressing, shearing, etc., the adhesive and the wood fibers are cut, causing primary fracture and the joining force is lost,
It turns out that there is a risk of destruction. Particularly, in areas where there are many earthquakes, the joints between structural members are gradually destroyed from where the strength is weak, which accumulates and suddenly damages the house due to an earthquake or the like. In addition, the patent application filed previously (Japanese Patent Application No. 5
-112261), the present inventor completed a connector having a protrusion formed on the end portion of the outlet pipe of the connector. With this protrusion, the workability could be remarkably improved by preventing the connector from slipping off or rotating when the connector was inserted. However, while injecting the adhesive, pressure is applied to smoothly return the adhesive, but part of the joint is pushed out due to the size and shape of the joint, and the adhesive injection gun is pulled out. It has also been found that when the diameter of the joining hole is large, some of the joining tools come out together and the workability is deteriorated. Also, furniture such as chests and chairs, doors and various fittings, play equipment such as jungle gyms and slides, fittings with thick parts such as kokeshi dolls are simply glued between the members or simply processed. Since it is simply bonded after that, there is a problem that the bonding strength is weak and the durability is poor.

The present invention solves the above-mentioned problems of the prior art, enables stronger joints by a simple construction method, eliminates the disengagement of joints, and significantly improves workability and improves productivity of buildings. At the same time, it is possible to prevent instantaneous breakage, and to bond and fix joints for furniture and furniture, joinery, play equipment, and toys with outstanding disaster prevention effects with simple work, and significantly improve their durability. An object of the present invention is to provide a joining tool that can be used, and a joining method for a building structure that is excellent in mechanical strength using the joining tool and that can significantly improve the construction work and significantly shorten the construction period.

[0005]

To achieve this object, the present invention has the following constitution. The connector according to claim 1, wherein a rod-shaped member, a hollow portion formed from one end to the other end of the rod-shaped member, and an adhesive flow at one end of the rod-shaped member.
Formed symmetrically on the outlet side with the outlet of the hollow portion sandwiched
An adhesive formed between the convex wall portion , a fixing member insertion hole formed in communication with the central portion of the convex wall portion, and the convex wall portion
The guide groove and the hollow branch pipe fixedly or detachably engaged with the opening of the hollow portion at the other end of the rod-shaped member are provided. The connector according to claim 2, wherein the rod-shaped member, a hollow portion formed from one end of the rod-shaped member to a predetermined portion in the longitudinal direction, and between one end of the hollow portion and an outer surface of the rod-shaped member. One or more glues pierced
The agent outflow hole and the adhesive outflow hole from the opening to the end
An adhesive outflow groove formed by the above, a fixing member insertion hole formed between the adhesive outflow hole and the other end of the rod-shaped member substantially orthogonal to the length direction of the rod-shaped member, A hollow branch pipe fixedly or detachably engaged with an opening of the hollow portion at the one end of the rod-shaped member. The connector according to claim 3 is the connector according to claim 1 or 2 , wherein a protrusion or the fixing member is provided at an end portion of the hollow branch pipe of the rod-shaped member on the fixing portion or engaging portion side. The present invention has a configuration including a collar portion having an insertion hole portion and an insertion hole portion display notch formed in a shape orthogonal or parallel to the opening direction. According to a fourth aspect of the present invention , in the connecting tool according to any one of the first to third aspects, the rod-shaped member has a structure in which a ridge portion or an uneven portion is formed on a surface thereof. The method for joining building structures according to claim 5 is the same as any one of claims 1 to 4.
A step of inserting a rod-shaped member between two or more structural members having a joining hole for inserting the rod-shaped member of the connector described in item 1; and an end of the rod-shaped member on the adhesive outflow side. The fixing member is inserted into the insertion portion of the fixing member formed by penetrating the tip portion of the joining hole from the outer wall portion of the structural member in the convex wall portion connected to the end portion or the end portion. Insert in the wearing hole,
A step of pivotally supporting the rod-shaped member on the insertion portion by the fixing member, a step of embedding an insertion portion insertion plug in the insertion portion, and an adhesive from the adhesive inflow side of the hollow portion of the rod-shaped member. Inject and
A step of causing the adhesive to flow out from the adhesive outflow side of the rod-shaped member and returning the adhesive to the inflow side while filling the gap between the rod-shaped member and the bonding hole between each structural member with the adhesive. And a step of burying a plug on the adhesive inflow side.

Here, the rod-shaped member of the connector is a metal or carbon fiber made of an alloy such as iron or brass having a substantially circular or elliptical cross section or a substantially polygonal shape such as a triangle, a quadrangle, or a hexagon. ， Molded and processed composite material of organic and inorganic fibers such as boron fiber, glass fiber, metal fiber and synthetic resin, ceramics using cement etc. and their composites, reinforced with wood, bamboo or acetylating agent Reinforced wood and reinforced bamboo are used. The length and thickness of the rod-shaped member are appropriately selected depending on the thickness and size of the structural member.
Depending on the joining structure between the structural members, one end of the rod-shaped member may be solid and an adhesive outflow hole may be provided at the tip of the hollow portion. This is to facilitate the use of the solid portion as the anchor portion. Further, the rod-shaped members may have the same diameter or different diameters. It is desirable that the diameter of the hollow portion is formed so as not to hinder the inflow of the adhesive. This is because the mechanical strength such as shearing force and bending stress of the connector is not lowered. For a rod-shaped member having a branch pipe hole at a predetermined portion in the longitudinal direction, the diameter of the hollow portion of the rod member may be changed before and after the branch pipe hole. The rod-shaped members having substantially the same length on the left and right with the branch pipe hole as the center have substantially the same flow rate of the adhesive, so that return flow occurs at the same time, so the diameter of the hollow part may be the same, but if the lengths are different,
This is because it is necessary to increase the diameter of the long side of the rod-shaped member and decrease the length of the short side to change the flow rate of the adhesive and make the returning time the same. The ridges and irregularities formed on the outer surface of the rod-shaped member are those in which continuous ridges or discontinuous protrusions are randomly formed, or adhesive that flows out from the other end of the rod-shaped member such as a spiral Desirably, the adhesive functions as a buffer for the agent, and is formed in a shape that fills the space between the outer surface of the rod-shaped member and the peripheral wall of the communication hole of the structural member to expand the bonding area and give an anchor effect. Depending on the construction site and the type of adhesive (having a strong viscosity), one or several ridges may be formed at the end of the rod-shaped member or branch pipe on the adhesive return side, or may not be formed. Further, the width and depth of the uneven portion such as the spiral groove may be changed according to the viscosity of the adhesive. The shape of the adhesive outflow side of at least one end of the rod-shaped member is swollen, flat,
It may be concave, but it is efficient to use it properly depending on the application and the type of structural member. For example, between wood or between laminated wood, a bulging material can be inserted by pressing wood scraps etc., and in the case of concrete or stone material, a concave one can be inserted while crushing the convex part in the hole, A flat-shaped product is preferably used as the hole-finished product. The ends of the rod-shaped member and the convex wall are formed in a substantially semicircular shape, a substantially cylindrical shape, a substantially triangular shape, or the like. The shape of the fixing member insertion hole of the end portion of the rod-shaped member or the convex wall portion is approximately a semicircle, a substantially circle, a substantially ellipse, or a substantially oval depending on the shape of the fixing member selected according to the size and thickness of the structural member. It is formed in a quadrangle, a substantially triangular shape, or a polygon such as a pentagon or a hexagon. As the fixing member, a pointed member such as a drift pin, a metal rod, a composite product of a fiber having high mechanical strength such as carbon fiber or boron fiber, and a synthetic resin is used. The diameter of the fixing member is substantially the same as or smaller than the diameter of the fixing member insertion hole. This is because the fixing member can be easily inserted and attached. Since the fixing member is injected with the adhesive after being inserted into the fixing member insertion hole portion, a part of the fixing member is fixed with the adhesive, so that the play can be eliminated and the adhesive strength can be improved. When the outer peripheral surface of the fixing member is formed to be flush or spiral or uneven portions parallel to the length direction, the adhesive flows through these uneven portions and the rod-shaped member and the fixing member are fixed with an adhesive, for a stronger bond. The structure can be obtained. The protrusions and flanges at the ends of the rod-shaped member are preferably made of metal or composite resin having strong bending stress, and are preferably made.The protrusions and flanges are fixed to the rod-shaped member by welding or the like, or are integrally formed with the rod-shaped member. You may form.
The shape of the protrusion and the flange may be any shape that can prevent the rod-shaped member from being pulled out when a strong tensile force acts on the rod-shaped member in the direction opposite to the portion where the collar or the like is formed. The branch pipe is made of a tubular material and is made of the same material as or different from the material of the rod-shaped member, and is engaged so that the hollow portion of the rod-shaped member and the hollow portion communicate with each other. The diameter of the branch pipe may be formed to be substantially the same as or smaller than or larger than that of the rod-shaped member. As an engaging method, a screw hole may be formed in the engaging portion of the branch pipe and an engaging portion of the rod-shaped member and screwed, or a fitting portion or the like may be formed and engaged by fitting or the like.
By forming the branch pipe, it is possible to smoothly inject the adhesive into the connector depending on the construction site. After the injection of the adhesive, the branch pipe is disengaged from the rod-shaped member and pulled out, but may be left as it is when the length of the branch pipe is short and there is no hindrance when plugging or the like. It is desirable that the rod-shaped member and the hollow portion of the branch pipe be mirror-finished in order to reduce the inflow resistance of the adhesive, but when the viscosity of the adhesive is low, mirror-finishing is not necessary. The adhesive is appropriately selected according to the type of structural member such as wood to wood, laminated wood to laminated wood, wood to laminated wood, wood or laminated wood to stone, concrete structure, stone or concrete structure. As a specific example, an organic adhesive such as an epoxy or polyurethane adhesive, or an inorganic adhesive such as a mortar is used. It should be noted that it is desirable that the adhesive is injected by two-step injection or pressure injection in the case of wood, laminated wood or concrete structure. This is to prevent the adhesive from being absorbed by the types of wood, laminated wood, and concrete, resulting in a shortage of the amount of adhesive and a decrease in adhesive strength. As structural members, lumber such as prisms, lumber such as laminated wood or laminated boards, wood such as stone pillars, concrete pillars, beams, walls and the like are used. The joining holes formed so as to communicate with each other between the structural members are perforated on the contact surface between the plurality of structural members in accordance with the shape of the joining tool.
It is desirable that the diameter is formed to be substantially the same as or slightly larger than the maximum diameter of the tubular portion of the connector, and the depth thereof is at least equal to or slightly longer than the length of the connector to be stored. This is to reduce the workability of punching and the amount of adhesive used. The holes for joining may be formed by drilling on the spot with a drill or the like, or may be preformed in a factory by a precut method or the like. The joining holes are formed in a substantially vertical shape, an oblique shape, an oblique shape, a parallel shape, or the like with respect to the contact surface depending on the construction site. In addition, it is preferable to apply an adhesive to the contact surface around the bonding hole because the structural strength can be further improved. After the injection of the adhesive into the joining hole is completed, the surface can be made flush by covering with a spigot or embedded wood, or repaired with putty to make the finished surface beautiful.

[0007]

With this structure, since the metal fittings are embedded and fixed in the joints between the structural members, bending, pulling,
The stress against compression, shearing, etc. can be significantly improved. Further, the type, diameter, length and number of the joining tool can be changed according to the strength required for the joining portion. Since the bonding hole is filled with the bonding agent and the adhesive around it, the mechanical strength against bending stress, etc. can be improved, and since the bonding tool is covered with the adhesive, it is oxidized by dew condensation. It can be prevented from being damaged or weakened by salt damage. Since the joining method is to form a joining hole or cutting portion on the contact surface of each structural member, insert the joining tool, insert the fixing member into the fixing member insertion hole, and then inject the adhesive, the working process Can be extremely simplified and the work man-hour can be reduced. Since no complicated metal fittings with a large number of parts are used, damage loss of materials due to incorrect mounting can be prevented.
Furthermore, by embedding the joint in wood, it is possible to prevent the interior of the joint from being protected by the carbonized film on the surface of the wood during a fire, prevent the joint from melting, maintain structural strength, prevent collapse of the building, and improve safety. . A fixing member insertion hole is provided at the outflow end of the rod-shaped member, and the fixing member is orthogonally inserted and inserted into the hole to prevent rotation of the connector and removal with the branch pipe.
The rigidity of the building structure is made to be tenacious, and in the case of momentary destruction, it is embedded in the wood and maintains its proof strength, so that momentary collapse can be prevented, and reliability and workability can be improved. Since the fixing member and the rod-shaped member are integrally solidified with the adhesive through the fixing member insertion hole, they are firmly joined even against an instantaneous external force such as an earthquake or the like, and between the rod-shaped member and the joining hole. It is possible to prevent the destruction of the adhesive and give a strong proof stress. In addition, mechanical strength is maintained at the part that does not reach the adhesive effect after the primary destruction of the adhesive by creating a part that is solidified with an adhesive on the fixing member and a part that is embedded in wood and does not reach the adhesive effect. It is possible to prevent instantaneous collapse. Further, it is possible to prevent the joining tool from coming off at the time of assembling the structural member, and it is possible to improve the integrity of the assembling work. Further, it can be easily applied to furniture, fittings, etc., and a strong joint structure can be obtained. Furthermore, it is possible to very easily repair the damaged building or furniture by simply opening the joining hole with a drill or the like and fixing the rod-shaped member with the fixing member and then injecting the adhesive. Well
In addition, the injected adhesive is applied to the outer surface of the end of the rod-shaped member.
Forming a guide part such as a groove to guide the adhesive smoothly
It can be guided between the surface of the rod-shaped member and the peripheral wall of the communication hole.
The workability of injecting the adhesive can be improved. Bar-shaped member
A guide groove for guiding the adhesive is formed on the end and the convex wall of the
This is preferable because uneven flow of the adhesive can be prevented. Adhesive flow
Since the groove is formed, wood chips etc.
Even if the adhesive outflow hole is not clogged, the adhesive can be poured smoothly.
You can enter.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a partially broken perspective view of a connector according to a first embodiment of the present invention, FIG. 2 (a) is a side view thereof, and FIG. 2 (b) is an adhesive outflow thereof. FIG. 4 is a perspective view of a main part on the end side, and FIG. 3 is a front view of the main part on the end side showing an application example of the rod-shaped member of the connector.
FIG. 11 is a side view of a main part showing an application example of the fixing member insertion hole. Reference numeral 1 is a metallic connector in which a branch pipe is engaged with an opening of a hollow portion of the first embodiment, 2 is a metal rod-shaped member, and 3 is a substantially central portion of the rod-shaped member 2 formed in the longitudinal direction and both ends are opened. The hollow portion for inflowing the adhesive, 3 is a convex wall portion formed in a bulge shape at one end of the rod-shaped member, 4 is an adhesive outflow hole , and 5 is the rod-shaped member 2
The surface of the rod has a concavo-convex portion formed in a spiral shape, 6 is an opening of the hollow portion 3 of the rod-shaped member 2, 7 is a branch pipe engaging portion formed in the opening 6 in a spiral shape, and 8 and 8 are of the rod-shaped member 2. A convex wall portion formed symmetrically with the hollow portion 3 on the adhesive outflow side at one end portion, 9 is a fixing member insertion hole portion formed in communication with the central portion of the convex wall portions 8 and 10. Reference numeral 11 is an adhesive guide groove formed between the convex wall portions 8, 8, 11 is a fixing member made of a drift pin or a metal rod-shaped member inserted in the fixing member insertion hole portion 9, and 12 is a branch pipe of the rod-shaped member 2. A branch pipe made of synthetic resin or metal engaged with the engaging portion 7 by screwing or the like, 12a is a locking groove such as a driver formed at an end of the branch pipe 12, 13 is a hollow portion 3 of the rod-shaped member 2. A branch pipe hollow portion communicating with the reference numeral 14 is an engaging portion which is formed in an end portion of the branch pipe 8 in a screw shape and which engages with the branch pipe engaging portion 7 of the rod-shaped member 2 by screwing or the like. In FIG. 3, (a) shows a rod-shaped member 2 having a substantially circular cross-sectional shape, which facilitates insertion into a rough-cut joint hole formed in wood or the like. In (b), the cross-sectional shape of the rod-shaped member 2 is formed into a substantially elliptical shape, and the purpose is to disperse and reinforce external force, such as joining a base and a pillar, and prevent rotation of the member.
In particular, the bending stress from the major axis direction is strengthened. (C)
(E) is formed in a substantially quadrangle, a rectangle, a hexagon, or a triangle, and is suitable for preventing rotation between members and joining them. Further, although not shown, the end portion may be formed into an inverted truncated cone shape centering on the hollow portion and expanding toward the end portion. This is convenient because it is possible to insert the connector while crushing the protrusions in the joint holes when joining structures such as concrete and stone. In FIG. 4, the shape of the fixing member insertion hole 9 is such that (a) is formed in a substantially semicircular shape, (b)
Is a substantially circular shape, (c) is a substantially elliptical shape, (d) is a substantially square shape,
(E) is formed in a substantially triangular shape or a polygonal shape, and can be appropriately used depending on the shape and size of an object to be joined such as a structural member. Incidentally, (d) and (e) are preferably used for those requiring tensile strength and bending strength. 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. (Execution Example 1) FIG. 5 is a perspective view of the joining tool such as a through column and a barrel insert when the joining tool of the first embodiment of the present invention is applied, and FIG. It is an important section side sectional view showing a state, and Drawing 6 (b) is an important section side sectional view showing a state after joint joining construction. DESCRIPTION OF SYMBOLS 1 is a connector of 1st Example, 2 is a rod-shaped member, 8 is a convex wall part, 9 is a fixing member insertion hole part, 11 is a fixing member, 15a is a through pillar, 15b is a barrel, 16 is a through pillar 1
The joint surface of 5a and the barrel 15b, 17 is a through pillar 15a
And a joining hole formed in communication with the joint joining surface 16 of the barrel 15b, 18 is a hole opening of the joining hole 17, and 19 is a hole opening 18 of the joining hole 17 after joining the joints. Plugs made of wood or synthetic resin to cover the column and make it flush with the surface of the pillar, 2
Reference numeral 0 is an insertion portion for inserting the fixing member 11 formed by boring the barrel insertion 15b at the position of the fixing member insertion hole portion 4 of the rod-shaped member 2 inserted in the joining hole portion 17, and 21 is fixed. Member 11
After inserting, insert plug for insertion part that prevents the outflow of adhesive,
22 is a gun for injecting an adhesive, 23 is a hole injected from a branch pipe 12, and a hole opening 18 of the hole 17 for bonding while filling the hole 17 for bonding through the hollow portion 3 of the rod-shaped member 3 and the adhesive guide groove 10.
It is an adhesive that is filled until the spill is visible. Communicating with the joint surface of the through column 15a and the barrel 15b, the center portion of the joint tool 1 is slightly thicker than the diameter of the joint tool, and the center portion of the joint tool 1 is the joint surface 16 of the joint.
The joining hole portion 17 having a depth that comes close to that is formed by a drill or the like. The joining tool 1 is inserted into the joining hole portion 17, and the fixing member 11 such as a drift pin is inserted into the fixing member insertion hole portion 9 provided in the convex wall portion 8 of the rod-shaped member 2 orthogonally to the rod-shaped member 2. .
Next, the insertion portion insertion plug 21 is attached to the insertion portion 20 of the barrel 15b.
Is made flush with the surface of the barrel 15b. Branch pipe 12
The adhesive injection gun 2 into the engagement groove 12a of the branch pipe hollow portion 13
Wear 2. Next, the adhesive 23 is bonded through the hollow portion 3 of the connector 1 while filling the insertion portion 20 and the bonding hole 17 until the adhesive 23 is visually recognized in the hole opening 18 of the bonding hole 17. The holes 17 are filled. As shown in FIG. 6 (a), the adhesive 23 is injected from the branch pipe hollow portion 13 as indicated by the arrow, passes through the hollow portion 3, and is guided from the adhesive guide groove 10 to the uneven portion 5 on the surface of the rod-shaped member 2 and the bonding hole. The gap between the peripheral wall of the portion 17 and the peripheral wall is filled. At this time, due to the buffer effect of the uneven portion 5 on the surface of the rod-shaped member 2, channeling or short pass of the adhesive 23 is prevented and the adhesive 2 is hardly leaked.
3 is filled. When the injection of the adhesive 23 is further continued, it is possible to visually observe that the adhesive 23 rises while filling the gap between the outer surface of the branch pipe 12 and the joining hole portion 17, so that uneven filling can be prevented. The adhesive 23 is applied to the hole opening 18 of the bonding hole 17.
When is visible, the branch pipe 12 is half-turned to release the engagement with the rod-shaped member 2. Since the fixing member 11 is driven into the fixing member insertion hole 9 of the rod-shaped member 2, the rod-shaped member 2 does not rotate or come off. Next, the bonding hole 17
The insertion plug 19 is inserted into the hole opening 18 of the above and is provided so as to be flush with the surface of the pillar 15a. If the plug 19 is made of the same material as the through column 15a, the through column 15 will be comfortable when installed flush with the through column 15.
It can be integrated with a. As described above, according to the present embodiment, the fixing member is inserted from the surface of the structural member into the fixing member insertion hole portion of the joining tool and the joining tool is fixed in the joining hole portion, so that the adhesive injection work can be performed. It can be done very easily.
Also, even if the building is swayed due to an earthquake or the like and an external force greater than the adhesive force of the adhesive is applied, the fixture is fixed to the structural member with the fixing member, so the influence of external force on the adhesive is prevented and the adhesive is ruptured. Can be prevented and the safety can be extremely enhanced.

(Second Embodiment) FIG. 7 (a) is a side view of a connector of the second embodiment of the present invention, and FIG. 7 (b) is an adhesive agent of the connector of the second embodiment of the present invention. It is a principal part perspective view by the side of an outflow end. Reference numeral 1a is a connector of the second embodiment, 2a is a rod-shaped member, 3 is a hollow portion formed by communicating from one end to the other end of the rod-shaped member 2a, and 8a is a convex wall on the adhesive outflow side of the rod-shaped member 2a. , 9 is a fixing member insertion hole formed in the convex wall 8a, 12 is a branch pipe fixedly or detachably engaged with one end of the rod-shaped member 2a, and 24 is a hollow portion 3
The adhesive outflow hole 24a is formed so as to communicate with the hollow portion 3 and be orthogonal to the hollow portion 3 or obliquely formed toward the top of the bulging portion 8a. The adhesive outflow hole 24 is formed from the opening of the adhesive outflow hole 24 to the end thereof. It is the adhesive outflow groove portion. Since it is configured as above,
In the connector of the second embodiment, the adhesive can be filled around the fixing member insertion hole and the periphery of the fixing member, and the mechanical strength is excellent and the adhesive is strong and does not break even when shaken by an earthquake or the like. A joint structure can be obtained. Further, since the adhesive outflow groove is formed, even if wood chips or the like to the bonding hole adhesive
The adhesive can be injected smoothly without clogging the outflow holes . (Embodiment 3) FIG. 8 is a perspective view of a main part of a connector according to a third embodiment. 2 is different from the connector of the first embodiment shown in FIG. 2 in that a flange 25 made of synthetic resin or metal is fixed to the opening 6 on the adhesive inflow side of the rod member 2b. This is the point that the outer peripheral surface shows the direction of perforation of the fixing member insertion hole portion 9 and that the notch portion 26 that forms a return passage of the adhesive is formed.
With the configuration as described above, according to the connector of the present embodiment, since the position of the fixing member insertion hole portion of the rod-shaped member is displayed by the notch portion of the flange portion, the rod-shaped member is attached to the structural member. After mounting, the fixing member can be extremely easily inserted when it is inserted, and the workability of inserting the fixing member can be improved. Incidentally, in the case of the present embodiment, it is necessary to form the joining hole portion of the structural member into which the collar portion is inserted and wide by the diameter of the collar portion. Further, the collar portion may be inserted into and fixed to the branch pipe so that it can be removed simultaneously with the branch pipe. (Execution example 2) FIG. 9 is a side sectional view of an essential part showing a state of joining a joint using the joining tool of the third embodiment of the present invention. Reference numeral 4 is a fixing member mounting hole portion, 11 is a fixing member, 15a is a through column, 15b is a lead, and 17 is a joining hole portion. Since these are the same as those in the construction example 1, the same reference numerals are given and description will be given. Omit it. 2b is a joining tool of the third embodiment, 25 is a brim portion integrally formed at an end of the rod-shaped member 2b, and 27 is a flared portion 2 which is wider than the joining hole portion 17 for accommodating the brim portion 25. The stepped portion, 28 is a plug. As described above, according to the present construction example, since the collar portion 25 is formed, even if an external force is applied in the direction f in the figure, the collar portion 25 abuts the two-step dug portion 27 and the connector is threaded through the pillar 15.
Since it does not come off from a, an extremely safe joint structure can be obtained. Further, since the joining tool is fixed by the fixing member 11 and the collar portion 25, a joining structure having excellent proof stress can be obtained.

Since the present invention is configured as described above, it is possible to realize a joining tool having the following excellent effects and a method for joining a building structure using the same. (1) Since the rod-shaped member is fixed to the structural member by the fixing member, the fixing member holds the rod-shaped member even if the building shakes up, down, left or right due to an earthquake or the like. Can be maintained. (2) or larger buildings Yusabu et al is an earthquake or the like, a large impact is applied to the building, a fixing member adhesion of connectors and the structural member is inserted into the adhesive portion be destroyed the rod-like member Since it is held, the building can be prevented from collapsing. (3) Since the end portion of the rod-shaped member has the flange portion, a strong joint structure can be obtained in combination with the fixing member. At the same time, since the joining tool is inserted inside wood or the like and coated with an adhesive, salt damage and dew condensation can be prevented, and the durability of the joining structure can be significantly improved without causing corrosion or the like. (4) Since the joining tool is not visible from the outside, a joint joint structure having an excellent aesthetic appearance can be obtained, and the added value of the structure can be increased. (5) In the event of a fire, the carbonized film of wood protects the internal joints and does not cause thermal deformation, etc., thus preventing collapse and securing evacuation time. In addition, the use of a plurality of joining tools can minimize the progress of the damaged portion, and can significantly improve the safety. (6) In conventional structures, especially wooden structures, the joints are variously processed and thinned, so they are weak against tensile compressive stress, bending stress, and shear stress, and structural members such as wood are thickened or thickened more than necessary to compensate for them. However, in the case of the present application, the strength can be artificially controlled by changing the wall thickness and shape of the rod-shaped member and the fixing member, the diameter and length of the hollow portion, and the number of joints. It can be constructed according to the required strength. In addition, by joining using a commercially available prism, a prism having a large cross section and a beam having a long span, which are excellent in structural strength, can be easily manufactured by on-site construction. (7) By using an adhesive and a joint tool, etc., the rigidity of the joint can be almost the same as that of a solid material such as wood, so that it is possible to sufficiently increase the height of a three-story building, etc. Since such an effect is sometimes obtained with a small number of joints, workability during construction, labor saving and rationalization can be remarkably improved. (8) In the method of joining the building structure, since the joining tool is inserted into the joining hole and the fixing member is axially attached to the insertion portion, the joining tool does not come off when the adhesive injection gun is pulled out. Workability can be extremely enhanced. Moreover, since the construction is simple, the construction period can be greatly shortened. (9) Since the joint portion of furniture, fittings, play equipment, toys, etc. is not destroyed by the strong joint structure, the durability can be remarkably enhanced. When repairing a building, furniture, fitting, etc., it is possible to perform a strong repair by simply opening the joining hole with a drill and mounting the joining tool.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a connector according to a first embodiment of the present invention.

FIG. 2 (a) is a side view of the connector of the first embodiment of the present invention. FIG. 2 (b) is a perspective view of an essential part of the adhesive of the connector of the first embodiment of the present invention on the outflow end side.

FIG. 3 is a front view of the main part on the end side showing an application example of the rod-shaped member of the connector according to the first embodiment of the present invention.

FIG. 4 is a side view of a main portion showing an application example of a fixing member insertion hole portion of the connector according to the first embodiment of the present invention.

FIG. 5 is a perspective view at the time of joining a joint such as a through pillar and a barrel using the connector of the first embodiment of the present invention.

FIG. 6 (a) is a side sectional view of a main portion showing a state at the time of joint joining using the connector of the first embodiment of the present invention. (B) The connector of the first embodiment of the present invention is used. Side cross-sectional view of the main part showing the state after joining the joints

FIG. 7 (a) is a side view of a connector according to a second embodiment of the present invention. FIG. 7 (b) is a perspective view of an essential part of the connector of the second embodiment of the present invention on the side of the adhesive outflow end.

FIG. 8 is a perspective view of an essential part of a connector according to a third embodiment of the present invention.

FIG. 9 is a side sectional view of an essential part showing a state of jointing joints using the jointing tool of the third embodiment of the present invention.

[Explanation of symbols]

1, 1a, 1b Joining tool 2, 2a, 2b Rod-shaped member 3 Hollow part 4 Adhesive outflow hole 5 Concavo-convex part 6 Opening 7, 7a Branch pipe engaging part 8, 8a, 8b Convex wall part 9 Fixing member insertion hole part 10 Adhesive guide groove 11 Fixing member 12 Branch pipe 12a Locking groove 13 Branch pipe hollow part 14 Engagement part 15a Through column 15b Body insert 16 Joint surface hole 17, 17a Joint hole 18 Hole opening 19, 19a Insert plug 20 Insertion Part 21 Insertion part plug 22 Adhesive injection gun 23, 23a Adhesive 24 Adhesive outflow hole 24a Adhesive outflow groove 25 Collar part 26 Notch part 27 Two-step dug part 28 Insert plug

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-331919 (JP, A) Actual Opening 4-24937 (JP, U) Actual Opening 50-147409 (JP, U) Actual Opening 58- 73844 (JP, U) Actually opened 63-86411 (JP, U) Actually opened 62-7504 (JP, U) JP 58-54223 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 1/18 E04B 1/26 E04B 1/38-1/60

Claims (5)

(57) [Claims] 1. A rod-shaped member, a hollow portion formed from one end to the other end of the rod-shaped member, and one end of the rod-shaped member.
Form a symmetrical shape with the outlet of the hollow part sandwiched on the adhesive outflow side.
Formed between the convex wall portion formed, the fixing member insertion hole formed in communication with the central portion of the convex wall portion , and the convex wall portion
And a hollow branch pipe fixedly or detachably engaged with the opening of the hollow portion at the other end of the rod-shaped member. 2. A rod-shaped member, a hollow portion formed from one end of the rod-shaped member to a predetermined portion in the longitudinal direction, and a hollow member extending from one end of the hollow portion to an outer surface of the rod-shaped member.
To a plurality of adhesive outflow holes and openings of the adhesive outflow holes
An adhesive outlet groove portion formed toward the end portion from the tangent
A fixing member insertion hole formed between the adhesive outflow hole and the other end of the rod-shaped member in a direction substantially orthogonal to the length direction of the rod-shaped member, and the hollow portion of the one end of the rod-shaped member. And a hollow branch pipe fixedly or detachably engaged with the opening. 3. The connector according to claim 1 or 2 , wherein:
Insertion hole display notch formed at the end of the rod-shaped member on the side of the fixed portion or the engaging portion of the hollow branch pipe formed in a shape orthogonal to or parallel to the opening direction of the protrusion or the fixing member insertion hole. A joining tool comprising a collar portion having a. 4. The connector according to any one of claims 1 to 3 , characterized in that a ridge portion and an uneven portion are formed on the surface of the rod-shaped member. 5. The method according to any one of claims 1 to 4.
With a hole for joining into which the rod-shaped member of the joined fitting is attached
The step of inserting the rod-shaped member between the above structural members, and the end of the rod-shaped member on the adhesive outflow side or the convex wall portion connected to the end from the outer wall portion of the structural member to the tip of the joining hole portion A step of inserting a fixing member into the inserting portion of the fixing member formed by penetrating the portion, inserting the fixing member into the fixing member insertion hole, and pivotally supporting the rod-shaped member on the inserting portion with the fixing member; A step of burying a plug for insertion part in the insertion part, and injecting adhesive from the adhesive inflow side of the hollow part of the rod-shaped member, and flowing out the adhesive from the adhesive outflow side of the rod-shaped member. And a step of returning the adhesive to the inflow side while filling the gap between the rod-shaped member and the bonding hole between the structural members with the adhesive, and a step of burying a plug on the adhesive inflow side. A method for joining a building structure, comprising: