JP2001355287A - Structure and method for jointing structural member for wooden building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for jointing structural members, improving the structural strength and earthquake resistance of a wooden building comprising the structural members such as lumber and laminated lumber, preventing a lowering of jointing force of a joint part and the deformation of the structural members caused by tensile force and horizontal force and coping with the looseness of the mutual joint parts of the structural members caused by the thinning of lumber or the like. SOLUTION: This structure for jointing the structural members is provided with two horizontal structural members 1A, 1B; fitting insert-through holes 4a, 4b respectively bored in joint faces 2a, 2b; a drawing fitting 5 insert-fitted into the fitting insert- through holes 4a, 4b to draw the horizontal structural members 1A, 1B; fitting fixing hole parts 6 formed at both end parts of the drawing fitting 5 almost perpendicularly to the longitudinal direction of the drawing fitting 5; fixing holes 7 bored in the horizontal structural members 1A, 1B almost perpendicularly to the fitting insert-through holes 4a, 4b; fitting fixtures 8 insert-fitted into the fixing holes 7 and fitting fixing hole parts 6; and a clamping groove 9 formed at a specified part of the horizontal structural member 1A from the outer peripheral wall surface to the fitting insert- through hole 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural member of a wooden building in which columns, beams, girders and the like are made of structural members such as lumber and glued laminated wood, thereby improving the strength of the building and reducing the weight of the lumber. The present invention relates to a joining structure of a structural member capable of coping with loosening of a joining portion between structural members, and a joining method of a joining structure of a structural member capable of easily and securely joining the structural members.

[0002]

2. Description of the Related Art Conventionally, in a frame of a wooden building, a brace or the like is arranged on the assumption that there is no strength at a joint portion of a structural member, and the horizontal force of the frame is maintained by the brace or the like. Conventionally, in a joint structure between structural members such as a column and a beam, and a beam and a beam, a joining surface of the structural member is cut out into a predetermined shape and joined by large insertion, or a structural member is joined by a joining metal fitting. The structure which joins each other is used.

Various structures and methods for joining structural members using conventional joining hardware have been developed and used. As a general joint structure (hereinafter referred to as “A”) used to join a beam to one side of a pillar,
Using a joint called a wing plate bolt in which a bolt is protruded on one of the plate members having a bolt hole or a nail hole, and fixing the plate member side of the wing plate bolt to the side surface of the beam with a long bolt or a long nail, There is a method in which a pillar and a beam are joined by drilling a hole in a pillar, inserting a bolt of a feather board bolt into the hole of the pillar, and tightening a bolt protruding on a side surface opposite to a joint surface of the pillar with a nut.

[0004] A joining structure used when joining a beam to both side surfaces of a pillar via a pillar includes a large notch formed in the joint surface between the pillar and the beam in a predetermined shape, and a through hole extending through the pillar. A through hole, a hole that is drilled from the end face side of the joint surface with the pillar of the beam and communicates with the through hole, and a working hole that is drilled in the beam by communicating with the hole from a side surface orthogonal to the longitudinal direction of the hole. , Having double bolts having bolts at both ends inserted into the through-holes and holes to expose the bolts to the working holes, and to insert the large inserts of the columns and beams, There is a type in which a column and a beam are drawn and joined by tightening the nut by screwing the nut to a bolt portion with a work hole (hereinafter, referred to as "b"). In addition, a large notch formed in the joint surface between the column and the beam in a predetermined shape, an L-shaped bracket fixed to the side surface of the beam with a long bolt, and a through hole formed in the column and inserted into both ends. A double pull bolt having a bolt portion, and a column and a beam are largely inserted in a large insert portion, and both ends of the double pull bolt are inserted into an L-shaped fitting and a nut is screwed to the bolt portion. By
There is one that draws and joins columns and beams (hereinafter referred to as C).

Further, Japanese Patent Application Laid-Open No. Hei 10-46679 (hereinafter referred to as Japanese Patent Application Laid-Open Publication No. H10-46679) discloses a shaft having a locking structure at one end and a head provided at the other end, and a shaft through which the shaft is inserted. A mating groove is provided from one end to the other end, and a cylindrical wedge member in which the thickness of both ends of the engaging groove abutting on the head sequentially increases from one end to the other end, Insert the shaft into the perforated through-hole, position the head of the shaft in the wedge insertion hole perforated in the beam, insert the wedge member into the wedge insertion hole from the thinner one of the engagement groove, There is disclosed a wood member connecting tool that connects a pillar and a beam by engaging an engaging groove of the member with a head of a shaft to draw the column and the beam.

[0006]

However, the above-mentioned conventional structure for joining structural members and the method for joining the same have the following problems. The joint structure of No. 1 had the following problems. a. Because of the lack of strength of the joints called wing plate bolts, they can only perform the auxiliary function of joining the columns and beams, and lack the strength of the joints between the structural members of the columns and beams. A structure for improving the strength of the joint is required, and the structure is complicated and joining workability is lacking. b. Since the plate-like body of the joint is exposed on the surface of the structural member, dew condensation easily occurs on the joint, rust occurs on the joint, and the joint and structural members lack durability. Is heated, the joints of the structural members are carbonized, and the joints are easily collapsed and lack safety, and the joints of the structural members lack appearance. c. Since the nut screwed to the bolt of the joint abuts against the side surface of the structural member, the nut is easily sunk into the side surface of the structural member, the structural member is easily broken, and the joint structure lacks safety.

[0007] The joining structure and joining method of No. 2 have the following problems. d. By inserting the double pull bolt into the through hole of the pillar and the hole of the beam, and screwing the nut to the bolt part of the double pull bolt,
Since the pillars and the structural members of the beam are joined by double pull bolts positioned substantially parallel to the longitudinal direction of the beam, the beam joined to the column is likely to be twisted, causing damage to both pull bolts. Poor durability of pull bolt. e. Due to the torsion of the beam, breakage such as cracking is likely to occur on the outer peripheral wall surface of the beam with the double pull bolt. f. Since the nut is screwed into the bolt portion with the working hole, the screwing work of the nut is difficult, and the joining workability of the structural member is poor. Therefore, the structural member is easily damaged, and the joint structure lacks safety.

[0008] The bonding structure and the bonding method of No. C have the following problems. g. Since the L-shaped bracket and the double pulling bolt are exposed on the surface of the structural member, dew condensation easily occurs on the L-shaped bracket and the double pulling bolt, and rust is generated to improve the durability of the L-shaped bracket, the double pulling bolt and the structural member. At the same time, the L-shaped bracket and the double pull bolt are heated during a fire, and the joints of the structural members are carbonized and the joints are easily collapsed, resulting in a lack of safety and a lack of appearance of the joints of the structural members.

The bonding structure and the bonding method disclosed in Japanese Patent Application Laid-Open Publication No. H10-209 have the following problems. h. The shapes of the shaft and the wedge member are complicated and lack the productivity of the shaft and the wedge member, and various parts such as the shaft and the wedge member are required, and the joining structure is complicated and the joining workability is poor. i. When joining the beam to the opposite side of the column through the column,
Since the shaft is inserted so that it does not protrude from the column, it is necessary to form extra excavation in the beam, the missing part of the beam is large, it is easy to cause a decrease in the strength of the beam, and the strength of the joint of the structural members such as columns and beams Lacks. j. Since the shaft is positioned substantially parallel to the longitudinal direction of the beam when joining the structural members of the column and the beam, the beam is likely to be twisted, lacking in durability of the shaft, and easily causing damage to the shaft. Further, in any of the items (a) to (c), when the joints between the structural members are loosened due to the thinning of wood or the like after the structural members are joined, the tightening of the nut is performed, and only one structural member is replaced with the other structural member. Since it is drawn to the side, the position of the joint is shifted, and it is difficult to maintain the accuracy of the building. Further, in the publication No. 2, when the joints between the structural members are loosened due to thinning of wood or the like after the joining of the structural members, the joints cannot be further tightened. It is difficult to maintain the strength of the building, and the durability of the building is lacking.

The present invention solves the above-mentioned conventional problems, and can improve the structural strength and seismic resistance of a wooden building composed of structural members (columns, beams, girders, etc.) such as wood and glued laminated lumber, and can improve tensile strength. Of the joining force of the joining parts and deformation of the structural members due to the horizontal force or the horizontal force, and also provides the joining structure of the structural members capable of coping with the loosening of the joining parts between the structural members due to thinness of wood and the like, and the structure An object of the present invention is to provide a method for joining structural members that can easily and reliably join members and that is excellent in joining workability of structural members.

[0011]

Means for Solving the Problems In order to solve the above-mentioned conventional problems, a joining structure of a structural member of a wooden building and a method of joining a structural member of a wooden building according to the present invention have the following configurations. . The joining structure of the structural member of the wooden building according to claim 1 of the present invention includes: a. Two horizontal structural members or two vertical structural members abutted on a predetermined joint surface; b. One or more fitting insertion holes, each of which is drilled in communication with the joint surface; c. A drawing fitting inserted into the fitting insertion hole to draw the horizontal structural members or the vertical structural members toward the joint surface; d. A metal fitting fixing hole formed at both ends of the metal fitting at a right angle to the longitudinal direction of the metal fitting; e. Fixing holes drilled from the outer peripheral wall surface of the horizontal structural member or the vertical structural member on both end sides of the pull-down metal fitting at a substantially right angle to the metal fitting insertion hole; f. A fixture fixing tool inserted into the fixing hole and the metal fitting fixing hole of the pull-in metal fitting; g. A fastening groove formed in a predetermined portion of the horizontal structural member or the vertical structural member from an outer peripheral wall surface to the metal fitting insertion hole is provided.

According to a second aspect of the present invention, there is provided a joining structure of a structural member of a wooden building, comprising: A vertical structural member; b. A horizontal structural member abutting the vertical structural member; c. One or more fitting insertion holes, each of which is formed so as to communicate with a joint surface where the vertical structural member and the horizontal structural member abut, d. A drawing fitting inserted into the fitting insertion hole to draw the vertical structural member and the horizontal structural member toward the joint surface; e. Metal fitting fixing holes formed at both ends of the metal fitting at substantially right angles to the longitudinal direction of the metal fitting; f. Fixing holes drilled from the outer peripheral wall surfaces of the vertical structural member and the horizontal structural member on both end sides of the pull-in fitting substantially at right angles to the fitting insertion hole; g. A fixture fixture inserted into the fixture hole and the fixture fixture hole of the pull-in fixture; h. A fastening groove formed at a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole is provided.

According to a third aspect of the present invention, there is provided a joining structure for structural members of a wooden building, comprising: a. A vertical structural member; b. Two transverse structural members abutting on opposing side walls of the vertical structural member and disposed via the vertical structural member; c. One or more metal through-holes penetrated between joining surfaces of the vertical structural members with which the horizontal structural members abut, d. One or more fitting insertion holes drilled in a joint surface of the horizontal structural member abutting on the vertical structural member in communication with the fitting through hole; e. A draw fitting inserted into the fitting insertion hole and the fitting through hole to draw the horizontal structural member toward the vertical structural member; f. A metal fitting fixing hole formed at both ends of the metal fitting in a direction substantially perpendicular to the longitudinal direction of the metal fitting; g. Fixing holes drilled from the outer peripheral wall surface of the horizontal structural member at both end sides of the pull-in fitting at substantially right angles to the fitting insertion hole; h. A fixture fixing tool inserted into the fixing hole and the metal fitting fixing hole of the pull-in metal fitting; i. The vertical structure member and / or the horizontal structure member has a predetermined portion provided with a fastening groove formed from an outer peripheral wall surface to the metal fitting through hole and / or the metal fitting insertion hole.

Thus, the configuration of each of claims 1 to 3 has the following operation. (1) A metal fitting is inserted into a metal fitting through hole or a metal fitting through hole formed in a joint surface between a horizontal structural member and a vertical structural member, and both ends of the metal fitting are fixed by metal fittings. The horizontal structure member and the vertical structure member can be closely joined to each other by pulling the horizontal structure member and the vertical structure member toward the respective joint surfaces by the pulling fitting. (2) The horizontal structure member and the vertical structure member can be joined with the metal fitting insertion hole or the metal fitting through hole of the horizontal structure member or the vertical structure member. Can improve the earthquake resistance of buildings. (3) Since the pull-in fitting is fixed to the transverse structural member or the vertical structural member by the fixing hole inserted substantially in the fixing hole and the fixing hole substantially perpendicular to the fitting insertion hole, the fitting fixing tool is fixed. It is hard to be sunk into the horizontal structural member and the vertical structural member, and the damage of the horizontal structural member and the vertical structural member can be prevented, and the strength of the horizontal structural member and the vertical structural member can be improved. (4) Since a predetermined portion of the horizontal structural member or the vertical structural member is provided with a fastening groove formed from the outer peripheral wall surface to the bracket insertion hole, the horizontal structural member or the vertical structural member can be made thinner by drying. Even when a gap is formed in the joint between the horizontal structural member and the vertical structural member or when play occurs, the tightening of the joint can be increased by operating the pulling fitting from the fastening groove. (5) When a plurality of metal fitting insertion holes and metal fitting through holes are formed, and a horizontal structure member and a vertical structure member are joined by a plurality of metal fittings,
In addition to improving the joining strength of the joint, even horizontal and vertical structural members with a large joint area can be joined with multiple pull-in fittings. Various designs can be accommodated by adjusting the number of metal fittings. (6) When dismantling a wooden building, the joining member can be released by operating the pulling fitting, so that the structural member can be used effectively and resource saving is excellent.

Here, the metal fitting insertion hole and the metal fitting through hole are formed so as to communicate with each other when the horizontal structural member and the vertical structural member are joined at the joint surface. The shape of the metal fitting insertion hole and metal fitting through hole may be substantially elliptical, triangular, quadrangular, hexagonal, or other polygonal shape in addition to the circular cross section, and is formed in a size that allows the metal fitting to be inserted. You. Further, it is preferable that the metal fitting insertion hole and the metal fitting through hole are formed at a position three to ten times the outer diameter of the metal fitting from the outer peripheral wall surface of the horizontal structure member or the vertical structure member. In addition, as the formation position of the fitting insertion hole or the fitting through hole becomes smaller than three times the outer diameter of the pull-in fitting, when an external force is applied to the horizontal structure member or the vertical structure member, the fitting insertion hole or the fitting through hole is formed. There is a tendency for the pulling metal to hit against the inner peripheral wall of the member and apply a force, causing cracks and the like to occur on the outer peripheral wall side of the horizontal structural member and the vertical structural member, and to be ten times the outer diameter of the pulling metal. As the size increases, the joint tends to be twisted, and it tends to be difficult to form a plurality of fitting insertion holes and fitting through holes when joining the horizontal structural member and the vertical structural member with a plurality of draw fittings.

[0016] The pulling fitting has metal fitting fixing holes formed at both ends at substantially right angles to the longitudinal direction of the pulling fitting.
Both ends can be fixed to the horizontal structural member and the vertical structural member with the metal fixing device inserted into the metal fixing hole, and the horizontal structural member and the vertical structure can be fixed by operating the pulling metal from the fastening groove. A member capable of pulling and connecting each of the members to each joint surface side is used. The metal fittings are made of iron products such as stainless steel, chromium, steel and carbon steel, and metals such as aluminum alloys, as well as carbon fibers and boron fibers.
What is formed by processing an organic or inorganic fiber such as a glass fiber or a metal fiber and a synthetic resin is used. In the case of metal,
Those subjected to rustproofing are preferably used. This allows
It is possible to prevent the drawing metal from rusting in the metal fitting insertion hole and the metal fitting through hole, and to improve the operability of the metal drawing metal when retightening.

The fixing holes are formed so as to communicate with the metal fitting insertion holes from the outer peripheral wall surfaces of the horizontal structural member and the vertical structural member according to the shape of the metal fixing device. In addition, it may be perforated so as to penetrate the opposing wall surface of the horizontal structural member or the vertical structural member, and in this case, the contact area between the metal fixture and the fixing hole inserted into the fixing hole becomes large. In addition, it is possible to prevent the bracket fixing tool from digging into the inner peripheral wall of the fixing hole and to damage the horizontal structural member and the vertical structural member from the fixing hole. Further, a concave portion having a diameter larger than that of the fitting fixing hole may be formed on the opening side of the fixing hole (on the outer peripheral wall surface of the horizontal structure member or the vertical structure member) depending on the shape of the fitting fixing device. Thereby, the end of the metal fixture can be fitted into the concave portion, and the end of the metal fixture can be prevented from protruding from the outer peripheral wall surface of the horizontal structural member or the vertical structural member. Furthermore, by embedding the embedding material for embedding the end of the metal fixture in the fixing hole evenly, the appearance can be improved and the metal fixture can be prevented from being damaged by a flame during a fire.

As the metal fixture, a rod-like body, a bolt and a nut which can be inserted into the fixing hole and the metal fixture fixing hole are used. In addition to products and metals such as aluminum alloys, those formed by processing organic or inorganic fibers such as carbon fibers, boron fibers, glass fibers, and metal fibers and synthetic resins are used. In the case of metal, those which have been subjected to rustproofing are preferably used. Thereby, it is possible to prevent the metal fixture from being rusted in the metal fixture fixing hole and the fixing hole. The shape of the fixing hole or the metal fixture is preferably one having no corners, such as a circular or elliptical cross section. As a result, it is possible to prevent stress from being concentrated on a part of the fixing hole and the metal fixture, and to prevent the fixing hole and the metal fixture from being damaged.

The tightening groove is large enough to insert a tool such as a wrench or a monkey wrench for operating the pulling fitting.
It is formed so as to communicate with the bracket insertion hole from the outer peripheral wall surface of the horizontal structure member or the vertical structure member. In particular, when forming a large insertion portion consisting of a convex portion and a concave portion on the joining surface of the horizontal structural member and the vertical structural member, the projecting length of the convex portion is formed longer than the depth of the concave portion,
A gap may be formed between the joining surfaces when the joining surfaces are joined. Thereby, the workability of forming the fastening groove can be improved, and the influence of the loss of the horizontal structural member and the vertical structural member due to the formation of the fastening groove can be reduced. By forming a large insert, a. The formation of the fastening groove can be omitted only by changing the length of the convex portion and the concave portion of the large insertion portion.
b. When a wooden building is dismantled because it does not form a fastening groove,
Since the strength of the structural member does not decrease, it can be effectively used as it is as a construction material, and resource saving can be achieved. c. By holding the convex and concave parts of the large insertion part at the time of joining, the pulling metal at the joint surface is subjected to shearing force due to the weight of the structural member, preventing damage such as bending of the drawing metal and improving workability. Since each structural member at the joint surface is held by the pull-in fitting and the large insertion portion, safety can be improved.

It is preferable to use a tool such as a plate-like wrench as a tool for operating the pulling fitting, so that the notch width of the tightening groove can be reduced, and a horizontal structure member or a vertical structure member can be used. A decrease in strength due to the loss can be suppressed. Also, by embedding the metal fitting fixing portion in the structural member and forming the embedding material flush with the outer peripheral surface of the structural member, the appearance of the joint portion can be neatly adjusted. By embedding the embedding material in the fastening grooves and fixing holes, the pull-in fittings and fixtures are not exposed to the atmosphere, preventing rust due to dew condensation and improving durability. It is possible to prevent direct exposure to erosion and excellent safety.

According to a fourth aspect of the present invention, there is provided a joining structure of a structural member of a wooden building according to any one of the first to third aspects, wherein the structural member is connected to an outer peripheral wall surface of the horizontal structural member. A fitting hole drilled substantially perpendicular to the fitting insertion hole and the fixing hole, and a fitting drilled at one or both ends of the pulling fitting at a substantially right angle to a longitudinal direction of the fitting fixing hole and the pulling fitting. It has a configuration provided with an insertion hole, a support fitting fixedly inserted in the insertion hole, and the fitting insertion hole.

Thus, in addition to the function obtained in any one of the first to third aspects, the following function is provided. (1) Since the mounting bracket has a mounting hole formed in the horizontal structural member and a support fitting fixedly inserted into a fitting insertion hole formed in the drawing fitting, the drawing fitting can be more securely moved horizontally. It can be inserted into the frame member, and the joining accuracy and joining strength of the joining portion can be improved. (2) Since the support bracket is inserted substantially at right angles to the longitudinal direction of the pull-down bracket and the bracket-fixing fixture, it is possible to prevent the horizontal structure member and the pull-down bracket from being twisted by an external force due to an earthquake or the like, and joining. A horizontal structure member that can improve the strength, prevent deformation of the metal fitting and prevent the inner peripheral wall of the metal fitting hole and the outer peripheral wall of the horizontal structural member from being broken by the metal fitting inserted into the metal fitting hole. Can be prevented, and the strength of the horizontal structural member can be improved. (3) Particularly, when the horizontal structure member and the vertical structure member are joined by two or more pull-down fittings whose fitting-insertion holes are located on the same straight line, the fitting-insertion hole of each pull-down fitting is required. By inserting and fixing the first support fitting, the respective draw fittings can be connected, and the torsion of each draw fitting can be prevented at the same time, and the joining strength of the joint can be improved.

Here, the insertion hole is formed so as to communicate with the metal fitting insertion hole from the outer peripheral wall surface of the horizontal structural member according to the shape of the support metal. In addition, a hole may be formed so as to penetrate the opposing wall surface of the horizontal structural member. In this case, the contact area between the support fitting inserted into the mounting hole and the mounting hole becomes large, and the support fitting is inserted. Dig into the inner wall of the wearing hole,
Damage to the horizontal structural member from the insertion hole can be prevented.
Further, a concave portion having a diameter larger than that of the fitting hole may be formed on the opening side of the insertion hole (on the outer peripheral wall surface of the horizontal structure member) depending on the shape of the support fitting. Thereby, the end of the support fitting can be fitted into the concave portion, and the end of the support fitting can be prevented from protruding from the outer peripheral wall surface of the horizontal structure member. Further, by embedding both ends of the support metal with the embedding material, safety in the event of dew condensation or fire can be improved. Examples of the support bracket include a bolt having a bolt at the end of a rod-like body that can be inserted into the insertion hole and the bracket insertion hole, and a nut screwed onto the bolt.
Nuts, screws, long screws, coach screws, lag screws and the like are used. In addition, the shape of the insertion hole, the metal fitting hole, and the support metal may be circular or elliptical in cross section.
Those having no corners are preferred. As a result, it is possible to prevent stress from being concentrated on the insertion hole, the fitting hole, and a part of the support fitting, and to prevent the mounting hole, the fitting insertion hole, and the support fitting from being damaged. Further, as materials, in addition to iron products such as stainless steel, chromium, steel and carbon steel, and metals such as aluminum alloys, carbon fibers and boron fibers, and the like.
What is formed by processing an organic or inorganic fiber such as a glass fiber or a metal fiber and a synthetic resin is used. In the case of metal,
Those subjected to rustproofing are preferably used. This allows
The support metal can be prevented from rusting in the metal fitting insertion hole or the insertion hole.

According to a fifth aspect of the present invention, there is provided a joining structure for a structural member of a wooden building according to any one of the first to fourth aspects, wherein the pulling fitting comprises: a. A rod-shaped metal fitting body having a tightening operation portion having two or more flat portions on an outer peripheral surface, and female screw portions formed at both ends in right-handed and left-handed threads, respectively; A fastening bolt having an external thread portion screwed to the female thread portion at one end, and the metal fitting fixing hole portion drilled at the other end side of the fastening bolt substantially perpendicular to the longitudinal direction of the external thread portion. It has a configuration provided.

According to a sixth aspect of the present invention, there is provided a joining structure for a structural member of a wooden building according to the first aspect of the present invention, wherein the pulling fitting comprises: a. A rod-shaped metal fitting body having a tightening work portion having two or more flat portions on its outer peripheral surface, and male screw portions projecting right and left threads at both ends, respectively; b. A tightening nut having a female screw portion screwed to the male screw portion at one end, and the metal fitting fixing hole portion drilled at the other end side of the tightening nut at substantially a right angle to a longitudinal direction of the female screw portion; It has a configuration provided.

Thus, in the configuration of each of the fifth and sixth aspects, the following action is obtained in addition to the action obtained in any one of the first to fourth aspects. (1) Since both ends of the metal fitting body of the metal fitting and the tightening bolts and nuts are provided with a female screw part and a male screw part formed in a right-handed screw shape and a left-handed screw shape, respectively, the drawing metal fitting is used. Insert both ends of the pull-in fitting into the fitting insertion holes and fitting through-holes of the horizontal structural member and the vertical structural member, and attach both ends of the pulling metal fitting to the horizontal structural member and the vertical Fixing the fixing hole of the structural member with the bracket fixing tool, engaging the tool such as wrench or monkey wrench on the tightening work part and rotating the bracket body, the female screw section and the male screw section at both ends of the bracket body The tightening bolt and the tightening nut are screwed on, and each of the horizontal structural member and the vertical structural member can be easily drawn to the bonding surface side of each other and bonded. (2) The amount of screwing between the female and male threads at both ends of the fitting main body and the tightening bolts and tightening nuts can be adjusted simply by rotating the fitting main body, so that the joint between the horizontal structural member and the vertical structural member can be adjusted. Easy to adjust the joining force and tightening work when the gap between the horizontal and vertical structural members occurs due to the thinning of the tree due to drying of the horizontal and vertical structural members, and when looseness occurs Can be easily done. (3) Since the female screw portion or the male screw portion of the metal fitting is screwed to the tightening bolt or the tightening nut, when the horizontal structural member or the vertical structural member is joined by the attracting metal, the horizontal structural member or The threaded portion between the female screw or male screw and the tightening bolt or nut works effectively against the tensile force acting on the vertical structural member, and the horizontal and vertical structural members are securely and firmly joined. Can be.

Here, the fastening work portion may have any shape as long as a tool such as a spanner or a monkey spanner can be engaged.
Any shape such as a square, pentagon, or hexagon can be used for the outer peripheral shape of the cross section of the tightening work section, and it is formed on a vertical structural member or a horizontal structural member, such as the central portion in the length direction of the bracket body. Depending on the position of the tightening groove thus formed, it is formed at an arbitrary position in the length direction of the metal fitting main body or over the entire length of the metal fitting main body. A horizontal structure in which the female screw and male screw at both ends of the metal fitting are screwed into the tightening bolt and nut as the total length of the metal fitting and the internal thread and male screw, and the tightening bolt and nut. Each of the members and the vertical structural members is drawn to the joint surface side, and is formed to have a length that allows the joint surfaces to be brought into contact and joined. After joining the horizontal structural member and the vertical structural member by abutting the joining surfaces, it is further formed so that the female screw portion and the male screw portion can be screwed to the tightening bolt or the tightening nut. Is preferred. This makes it possible to retighten the joint when rattling occurs at the joint due to thinning of the tree due to drying or the like. The metal fitting fixing hole is formed to have a size in which the metal fixing tool can be inserted, and in particular, preferably has no corner such as a circular or elliptical cross section. As a result, it is possible to prevent stress from being concentrated on a part of the fitting fixing hole, and to prevent the fitting fixing hole from being damaged.

According to a seventh aspect of the present invention, in the joining structure of a structural member of a wooden building according to the fifth or sixth aspect of the present invention, the pulling fitting is formed of the tightening bolt or the tightening nut. On the other end side, there is provided a configuration having the metal fitting fixing hole and the metal fitting insertion hole formed substantially perpendicular to the longitudinal direction of the pulling metal fitting.

Thus, the following effects are obtained in addition to the effects obtained in the fifth and sixth aspects. (1) The support fitting can be inserted into the fitting insertion hole,
It is possible to securely insert and fix the pull-down fittings inserted into the bracket insertion holes and the through-holes of the horizontal structural member and the vertical structural member to the horizontal structural member with both the metal fixing fixture and the support metal, As a result, it is possible to prevent the pulling metal from being twisted in the metal fitting through hole or the metal fitting through hole and to prevent the pulling metal from being damaged, and to improve the joining strength of the joining portion between the horizontal structural member and the vertical structural member. .

Here, the metal fitting insertion hole is formed in such a size that the support metal can be inserted, and in particular, the one having no corner such as a circular or elliptical cross section is preferable. As a result, it is possible to prevent stress from being concentrated on a part of the fitting hole, and to prevent damage to the fitting hole. The fitting insertion hole may be formed on the other end side of the fastening bolt or the fastening nut from the fitting fixing hole or on the fastening work unit side from the fitting fixing hole.

According to a eighth aspect of the present invention, there is provided a joint structure for a structural member of a wooden building according to any one of the first to seventh aspects, wherein the metal fixture comprises a head, A torso projecting from one end of the head and being inserted into the fixing hole and the fitting fixing hole of the pull-in fitting; a bolt formed into an external thread at an end of the torso; A nut portion to be screwed to the bolt portion, an engagement portion formed on the other end surface of the head portion and one end surface of the nut portion, and an adhesive injected from the other end surface of the head portion to the body portion A hole,
Is provided.

Accordingly, the following operation is obtained in addition to the operation obtained in any one of the first to seventh aspects. (1) The body of the metal fixture is inserted into the fixing holes of the horizontal and vertical structural members and the metal fixing holes of the pull-in metal fittings inserted into the metal fitting insertion holes and metal fitting through holes. A tool such as a screwdriver is engaged with the joint, and a nut is screwed into the bolt of the body, and the head and nut are inserted into both ends of the fixing hole, so that the pull-in bracket is mounted horizontally. It can be fixed to a structural member or a vertical structural member.

Here, the fixing hole is formed by penetrating through the horizontal structural member and the vertical structural member. In addition, only the both ends of the fixing hole may be sized so that the head and the nut can be inserted. The engaging portion is formed in a shape such as a minus shape, a plus shape, a star shape, a hexagonal shape, or the like, with which a tool such as a driver can engage.

According to a ninth aspect of the present invention, in the joining structure for a structural member of a wooden building according to the ninth aspect, the adhesive is formed by perforating the metal fixture from the other end face of the head to the trunk. It has a configuration provided with an injection hole. This has the following effects in addition to the effects obtained in claim 8. (1) Since the head has an adhesive injection hole, the adhesive is injected from the adhesive injection hole, whereby the adhesive is applied to the outer peripheral portion of the body of the metal fixture and the metal fitting of the pull-in metal. Fixing holes,
It is filled in the fixing hole, and the pull-in fitting can be securely and firmly inserted and fixed to the horizontal structural member or the vertical structural member by the metal fixture. (2) In particular, there is a gap between the metal fitting insertion hole or the metal fitting through hole and the pull-in metal. When the adhesive is injected from the adhesive injection hole of the metal fixture at one end of the pull-in metal, the adhesive fills the metal fixing hole on the outer periphery of the body of the metal fixture. The metal fitting is inserted into the metal fitting through hole and metal fitting through hole on the outer periphery of the metal fitting, and the adhesive flows out from the adhesive injection hole of the metal fixture at the other end of the metal fitting. Can be filled with an adhesive, the pull-in fitting can be bonded and fixed to the fitting insertion hole or the fitting through hole, and the rigidity of the joint can be improved. Here, the gap between the outer peripheral wall of the body of the metal fitting and the metal fixing hole of the metal fitting is 3 mm to 6 m.
m is preferable. Thereby, the adhesive can be smoothly filled between the outer peripheral wall of the body and the metal fitting fixing hole.
Incidentally, as the gap becomes smaller than 3 mm, the adhesive tends to be unable to be filled smoothly, depending on the fluidity of the adhesive, and as the gap becomes larger than 6 mm, extra adhesive needs to be injected. , Tends to cause high costs. As the body portion, a thread-shaped or irregularly shaped rebar-shaped uneven surface may be formed on the outer peripheral surface. Thereby, the adhesive effect between the body and the metal fixing hole by the adhesive can be improved, and a high adhesive strength can be obtained. Also, as the bolt part,
It may be formed only at the end of the body, or a bolt may be formed over the entire length of the body. Further, as the head, an adhesive injection hole portion can be formed from the other end surface of the head portion to the body portion, and the adhesive can be filled between the outer peripheral wall of the body portion and the metal fixing hole or the fixing hole. (For example, a diameter 3 mm to 6 mm larger than the diameter of the trunk).

According to a tenth aspect of the present invention, there is provided a joining structure for a structural member of a wooden building according to any one of the first to ninth aspects.
In the invention described in the paragraph, the support fitting has a head, a rod-shaped part protruding from one end of the head, a male screw part formed at an end of the rod-shaped part, and a screw on the male screw part. It has a configuration having a nut portion having a female screw portion to be attached, and an engagement portion formed on the other end surface of the head and the end surface of the nut portion.

Thus, in addition to the effect obtained in any one of the first to ninth aspects, the following effect is obtained. (1) The rod portion of the support fitting is inserted into the insertion hole of the horizontal structural member and the fitting insertion hole of the pulling fitting, and the female screw portion of the nut portion is screwed into the male screw portion at the end of the rod portion. By inserting the head and the nut portion into the insertion holes, the pull-in fitting can be fixed to the horizontal structural member by the support fitting. (2) Since the engaging portion is provided on the other end surface of the head and the end surface of the nut portion, a nut or the like can be easily rotated by applying a tool such as a screwdriver to the engaging portion, and the rod portion can be easily rotated. The nut can be screwed on to insert the support fitting into the insertion hole and the fitting insertion hole.

The insertion hole is formed by penetrating the horizontal structural member. In addition, only the both ends of the insertion hole into which the head and the nut are inserted may be formed to have a size in which the head and the nut can be inserted. Thereby, it is possible to prevent the head and the nut portion of the support fitting from protruding from the outer peripheral wall surface of the horizontal structural member, and it is possible to improve the appearance of the joint structure of the structural members. As the external thread portion, it may be formed only on the end side of the rod portion,
Further, it may be formed over the entire length of the rod portion. As the engagement part,
It is formed in a shape such as a minus shape, a plus shape, a star shape, a hexagonal shape or the like, which can be engaged with a tool such as a screwdriver.

[0038] According to the eleventh aspect of the present invention, in the joining structure of a structural member of a wooden building according to the invention described in any one of the first to tenth aspects, the vertical structural member and / or the horizontal support is provided. It has a configuration provided with a large insertion portion formed on each joint surface of the structural member.

Accordingly, the following effect is obtained in addition to the effect obtained in any one of the first to tenth aspects. (1) Since the joining surfaces of the vertical structural member and / or the transverse structural member can be joined via the large insertion portion, the joining surfaces of the vertical structural member and the transverse structural member to be joined are joined without shifting. It is possible to securely fit and join the metal fitting through holes and metal fitting through holes formed in the vertical structural member and the horizontal structural member. (2) By forming a large container, a. The formation of the fastening groove can be omitted only by changing the length of the convex portion and the concave portion of the large insertion portion. b. When the wooden building is dismantled, the strength of the structural members is not reduced when the wooden building is dismantled because no tightening groove is formed. c. By holding the convex and concave parts of the large insertion part at the time of joining, the pulling metal at the joint surface is subjected to shearing force due to the weight of the structural member, preventing damage such as bending of the drawing metal and improving workability. Since each structural member at the joint surface is held by the pull-in fitting and the large insertion portion, safety can be improved.

Here, as the large insertion portion, a concave portion formed in a concave shape on one of the joining surfaces of the vertical structural member and the horizontal structural member to be joined, and a convex portion formed in a convex shape on the other and fitted into the concave portion. ,
And the like are used. In particular, when the recess is formed to be shallower than the protrusion length of the protrusion or the protrusion length of the protrusion is formed longer than the depth of the recess, and formed so as to communicate with the metal fitting insertion hole or the metal fitting through hole, The fastening groove can be formed in the joint, and the workability of forming the fastening groove can be improved.

According to a twelfth aspect of the present invention, there is provided a joining structure for a structural member of a wooden building according to any one of the first to eleventh aspects, wherein the fastening groove, the fixing hole, It has a configuration provided with an embedding material embedded in at least one of the insertion holes.

Thus, the following effect is obtained in addition to the effect obtained in any one of the first to eleventh aspects. (1) By embedding an embedding material in a fastening groove, a fixing hole, or a mounting hole, a pull-in fitting, a fitting fixing tool, and a support fitting are exposed on an outer peripheral wall surface of a horizontal structure member or a vertical structure member. Can be prevented, and dew condensation can be prevented from occurring on the pull-in fittings, the metal fixtures, and the support fittings. Rust on the pull-in fittings, the metal fixtures, and the support fittings, and the horizontal and vertical structural members can be prevented. Corrosion can be prevented. (2) Since the metal fittings, metal fittings, and support metal are not exposed on the outer peripheral wall side of the horizontal structural member and the vertical structural member, the metal metal fittings, metal fittings, and metal support are particularly useful in a fire or the like. When heated, it becomes a thermal bridge, and it is possible to prevent the inside of the bracket insertion hole, the bracket through hole, the fixing hole, and the insertion hole of the horizontal structure member and the vertical structure member from being carbonized, thereby improving the fire resistance of the joint structure. . (3) Since the pulling fitting, the fitting fixing tool, and the supporting fitting are not exposed on the outer peripheral wall surface of the horizontal structural member or the vertical structural member, the appearance can be improved, and in particular, various designs such as decorative beams can be handled.

Here, the embedding material is formed according to the shape of each of the fastening groove, the fixing hole, and the insertion hole. Also,
When embedding material is buried in fastening grooves, fixing holes, and insertion holes,
It is preferable to form the embedding material so that the outer peripheral wall surfaces of the vertical structural member and the horizontal structural member are flush with each other. Thereby, the appearance of the vertical structural member and the horizontal structural member can be improved. Further, the embedding material may be embedded in the fastening groove, the fixing hole, or the insertion hole, and may be bonded and fixed with an adhesive. Thereby, the fall of the embedding material can be prevented.

The method for joining structural members according to claim 13 of the present invention comprises the steps of: a. A metal fitting insertion hole is formed in each of the joining surfaces of the vertical structural member and / or the horizontal structural member joined at a predetermined joint surface, and the metal fitting is formed from an outer peripheral wall surface of the vertical structural member and / or the horizontal structural member. A hole forming step of forming a fixing hole substantially perpendicular to the insertion hole; b. A tightening groove forming step of forming a tightening groove in a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole; c. A draw fitting is inserted through the fitting insertion hole to fix the draw fitting with the fixing hole, and the vertical structural member and / or
Or an attachment / connection step of connecting the horizontal structural members,
d. A tightening step of pulling the vertical structural member and / or the horizontal structural member toward the joining surface side with the pulling fitting and bonding the vertical structural member and / or the horizontal structural member. are doing.

The method for joining structural members according to claim 14 of the present invention comprises the steps of: a. Drilling a metal fitting through hole penetrating the opposed joint surface of the vertical structural member, drilling a metal fitting through hole on each joint surface of the two horizontal structural members joined to the joint surface of the vertical structural member, and A hole forming step of drilling a fixing hole from the outer peripheral wall surface of each of the transverse structural members at a substantially right angle to the bracket insertion hole,
b. A tightening groove forming step of forming a tightening groove in a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole; c. A pulling fitting is inserted into the fitting insertion hole and the fitting through hole to fix the pulling fitting with the fixing hole, and to connect the vertical structural member and the two horizontal structural members. A coupling step; d.
A step of pulling each of the horizontal structural members toward the vertical structural member side with the pulling fitting, and joining the vertical structural member and the two horizontal structural members.

Thus, the constructions of Claims 13 and 14 have the following operations. (1) In the hole forming step and the tightening groove forming step, a metal fitting insertion hole, a metal fitting through hole, a fixing hole, and a tightening groove are formed, and in the inserting / connecting step, the drawing metal is inserted into the metal fitting inserting hole and the metal fitting through. The vertical structure members and the horizontal structure members are connected to the holes and connected together. Then, in the tightening process, the horizontal structure members and the vertical structure members can be attracted and joined to each other by a pull-in metal fitting, so that simple work can be performed. Thus, the joining work of the structural members can be easily performed, and the construction period of the wooden building can be shortened. (2) In particular, when the hole forming operation and the groove forming operation in the hole forming step and the tightening groove forming step are performed by pre-cut processing, the dimensional accuracy can be improved and the workability at the construction site can be further improved. (3) The horizontal structural member and the vertical structural member can be connected only by inserting the pulling metal fitting into the metal fitting through hole or the metal through hole of the horizontal structural member or the vertical structural member to be joined. In addition to being able to easily prepare for joining work, the joint can be securely tightened and joined by simply operating the pulling bracket, improving workability, greatly reducing the number of construction steps, and excelling in labor saving.

Here, the fitting insertion hole is formed in accordance with the size of the drawing fitting. Further, as the fixing hole, a predetermined depth may be pierced from one outer peripheral wall surface of the horizontal structure member or the vertical structural member, or may be pierced through the other outer peripheral wall surface, depending on the metal fixture. You may. In the tightening groove forming step, in particular, when forming a tightening groove at a joint portion of the structural member, a convex portion is formed on one joint surface and a concave portion is formed on the other joint surface to communicate with the metal fitting insertion hole. The fastening groove may be formed by forming the insertion portion and making the protrusion length of the protrusion longer than the depth of the recess (the depth of the recess is smaller than the protrusion length of the protrusion).

According to a fifteenth aspect of the present invention, a method for joining structural members according to the thirteenth or fourteenth aspect is provided.
The hole forming step includes a mounting hole forming step of forming a mounting hole substantially perpendicular to the bracket insertion hole and the fixing hole from the outer peripheral wall surface of the horizontal structure member, and the attaching / connecting step includes: It has the structure provided with the support metal fitting attachment process which inserts a support metal fitting into the metal fitting hole of the above-mentioned insertion hole and the above-mentioned metal fitting.

Thus, in addition to the functions of the thirteenth and fourteenth aspects, the following functions are provided. (25) Only by forming an insertion hole in the horizontal structural member, the support metal can be inserted into the pull-in metal in the support metal fitting step. (26) In particular, when the insertion hole is formed by pre-cutting, the work at the construction site can be further improved.

Here, the insertion hole may be formed by drilling a predetermined depth from one outer peripheral wall surface of the horizontal structural member.
It may be perforated by penetrating from one outer peripheral wall surface to the other outer peripheral wall surface. In particular, when formed through the insertion hole, 1
Can be inserted into two or more pulling fittings. In addition, the support fitting insertion step may be performed at the end of the insertion / connection step, depending on the structure of the support fitting or the drawing fitting,
Also, it may be performed in the middle of the insertion / connection step.

According to a sixteenth aspect of the present invention, there is provided a method of joining structural members according to any one of the thirteenth to fifteenth aspects, wherein the working groove, the fixing hole, and the insertion hole are provided. It has a configuration provided with an embedding step of embedding an embedding material in at least one of them.

Thus, in addition to the functions of the thirteenth to fifteenth aspects, the following functions are provided. (1) By simply burying the embedding material in the working groove, fixing hole, or insertion hole, it is possible to prevent the pulling metal fitting, the metal fitting fixing tool, and the support metal from being exposed on the outer peripheral wall surface of the horizontal structural member or the vertical structural member. Can be prevented,
Prevents dew condensation on the metal fittings, metal fittings, and support metal fittings. (2) Prevents the metal fittings, metal fittings, and metal fittings from being directly heated and melted in the event of a fire, and facilitates joints. Can be prevented from collapsing.

Here, the embedding material is fitted or driven into a working groove, a fixing hole, or a mounting hole. The embedding material, the working groove, the fixing hole and the insertion hole may be coated with an adhesive before embedding the embedding material. Thereby, the embedding material can be securely bonded and fixed.

[0054]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) A joint structure between horizontal structural members according to Embodiment 1 of the present invention will be described.
This will be described below with reference to the drawings. FIG. 1A shows the first embodiment.
FIG. 1B is a cross-sectional plan view of a main part showing a joint structure of joints between horizontal structural members in FIG. 1, and FIG. 1B is a cross-sectional side view of a main part showing a joint structure of horizontal structural members in the first embodiment. In FIG. 1, reference numerals 1A and 1B denote horizontal structural members such as beams, girders, and foundations of wooden structures made of wood, laminated wood, and the like joined at one end surface, and reference numerals 2a and 2b denote ends of the horizontal structural members 1A and 1B. The joint surface 3 of the portion is a concave portion 3a formed in a concave shape on the joint surface 2a of the horizontal structural member 1A and the joint surface 2b of the horizontal structural member 1B.
The large insertion portion 4a, 4b formed of a convex portion 3b fitted into the concave portion 3a and formed in a convex shape from the joining surfaces 2a, 2b of the horizontal structural members 1A, 1B is in the longitudinal direction of the horizontal structures 1A, 1B. A metal fitting insertion hole with a circular cross section that is drilled in parallel to a predetermined depth,
Reference numeral 5 denotes the horizontal structural member 1 which is inserted into the fitting insertion holes 4a and 4b.
A and 1B are drawn toward the joining surfaces 2a and 2b to join the horizontal structural members 1A and 1B.
Metal fitting fixing holes, which are formed by penetrating through the both ends of the metal fitting at a substantially right angle to the longitudinal direction of the metal fitting 5, the metal fittings 7 are inserted from the outer peripheral wall surfaces of the horizontal structural members 1 </ b> A and 1 </ b> B on both ends of the metal fitting 5. Hole 4
a, 4b are drilled at a substantially right angle to a predetermined depth, and
A fixing hole having a circular cross section communicating with 4b, 8 is a fixing hole 7
A pin-shaped or rod-shaped metal fixture having a circular cross section in which the metal fitting 5 is inserted into and fixed to the metal fitting hole 6 of the metal fitting 5 and is fixedly inserted into the metal fitting holes 4a and 4b. Member 1A
Is a slit-shaped fastening groove formed by cutting out a predetermined portion from the outer peripheral wall surface to the bracket insertion hole 4a.

Here, the metal fitting insertion holes 4a and 4b are formed on the outer peripheral wall surfaces of the horizontal structural members 1A and 1B in accordance with the sizes of the horizontal structural members 1A and 1B and the pull metal 5, respectively. It is formed at a position three to ten times the diameter. As a result, when the bracket insertion holes 4a, 4b are pierced, or when the horizontal structural members 1A, 1B are joined by the pull-in metal 5, cracks and the like occur on the outer peripheral wall surfaces of the horizontal structural members 1A, 1B, and the horizontal The frame members 1A and 1B can be prevented from being damaged. The metal fittings 5 and the metal fittings 8 are made of iron products such as stainless steel, chromium, iron and steel, carbon steel and the like, or metal such as aluminum alloy or rust-proof metal, or carbon fiber or boron. What is formed by processing an organic or inorganic fiber such as a fiber, a glass fiber, and a metal fiber and a synthetic resin is used. 1 Further, the fastening groove 9 may be formed in the horizontal structural member 1B, or may be formed in both of the horizontal structural members 1A, 1B, and further formed between the joint surfaces 2a, 2b. You may. Note that the fastening groove 9 may be formed to have a width in which a tool such as a plate-shaped spanner can be inserted, and is preferably formed to be narrow. Thereby, the notch width of the horizontal structural member 1A can be reduced, and a decrease in rigidity and strength due to the loss of the horizontal structural member 1A can be suppressed.

Next, the drawing fitting in the first embodiment will be described with reference to the drawings. FIG. 2 is an exploded perspective view of a main part of the pulling fitting according to the first embodiment. In FIG. 2, reference numeral 10 denotes a fitting body of a pull-in fitting 5 formed in a bar shape having a hexagonal cross section, 10 a denotes a tightening operation unit including six flat portions formed on the outer peripheral surface over the entire length of the fitting body 10, 11. Is formed in a reverse screw shape at both ends of the metal fitting body 10, one is a right-handed screw thread, the other is a left-handed female screw part, and 12 is formed in one end into a right-handed or left-handed screw threaded to the female screw part 11. A fastening bolt having a male screw portion 13a and a bolt head 13b provided at the other end with a metal fitting fixing hole portion 6 formed in a circular cross section substantially perpendicular to the longitudinal direction of the male screw portion 13a. Here, as the fastening operation part 10a, the metal fitting body 10
Instead of being formed over the entire length, a predetermined length of the predetermined portion of the metal fitting main body 10 (a predetermined length centered on a position which is the same position as the fastening groove 9 when the pulling metal fitting 5 is inserted into the metal fitting insertion holes 4a and 4b). ) May be formed only. The female screw portion 11 may be formed at both ends of the metal fitting body 10 or may be formed over the entire length of the metal fitting body 10. The female screw portion 11 and the male screw portion 13 a are provided with the metal fastener 8 in the metal fitting hole 6. The pull-in fitting 5 is inserted into the fitting insertion hole 4 of the horizontal structural member 1A, 1B.
a, 4b, and when the female screw portion 11 and the male screw portion 13a are screwed, the transverse structural members 1A, 1B
It is formed to a length that allows it to be drawn to and joined to the sides a and 2b. It is preferable that the bolt head 13b of the tightening bolt 12 is formed to have the same outer diameter as or larger than the external thread portion 13a. Thereby, when formed with a large diameter, the diameter of the metal fixing hole 6 of the bolt head 13b can be increased, and the metal fixing 8 inserted into the metal fixing hole 6 is increased in diameter to fix the metal fixing. The rigidity of the tool 8 can be increased. The fastening bolt 12 may have a total length of a male screw portion 13a. In this case, the metal fixing hole 6 is formed in the other end of the male screw portion 13a.

The joining structure of the structural member of the first embodiment configured as described above will be described below with reference to the drawings. FIG. 3 is an exploded perspective view of a main part of the joint structure of the structural members according to the first embodiment. In FIG. 3, 1
Reference numeral 4 denotes a plate-shaped embedding material to be embedded in the fastening groove 9, and 14 a denotes a notch formed in a substantially inverted U-shape on one side of the embedding material 14 and a pull-in fitting 5
Is a notch portion to be fitted.

First, in the hole forming step, metal fitting insertion holes 4a, 4b are formed in the joint surfaces 2a, 2b of the horizontal structural members 1A, 1B.
b to a predetermined depth, and the horizontal structural members 1A, 1
B through the transverse structural members 1A, 1B at substantially right angles to the metal fitting insertion holes 4a, 4b from the outer peripheral wall of the fixing hole 7 to a predetermined depth.
Perforate. Next, in the tightening groove forming step, the tightening groove 9 is cut out in the horizontal structural member 1A from the outer peripheral wall surface to the metal fitting insertion hole 4a so as to communicate with the metal fitting insertion hole 4a substantially perpendicular to the metal fitting insertion hole 4a. Here, the hole forming step and the fastening groove forming step may be performed at a construction site or may be pre-cut at a factory. In addition, the large insertion portion 3 of the horizontal structural members 1A, 1B
The concave portions 3a and the convex portions 3b may be formed simultaneously with the hole forming step and the tightening groove forming step, or may be formed in advance before the hole forming step and the tightening groove forming step.

Next, in the inserting / connecting step, one end of the pull-in fitting 5 in which the male screw portion 13a of the tightening bolt 12 is screwed to the female screw portions 11 at both ends of the fitting body 10 is connected to the horizontal structural members 1A, 1B. , And then, the metal fixture 8 is inserted into the metal fixing hole 6 formed in the fixing hole 7 and the tightening bolt 12 of the pull-in metal 5. Connect one end of the pull-in fitting 5 to the horizontal structural member 1A or 1
Insert and fix to B. Next, the other end of the drawing metal fitting 5 is inserted into the metal fitting insertion hole 4b or 4a of the other horizontal structural member 1B or 1A, and then the metal fitting fixing tool 8 is fixed to the fixing hole 7 and the metal fitting of the drawing metal fitting 5. The other end of the pull-in fitting 5 is inserted into the hole 6 and fixed to the horizontal structural member 1B or 1A, and the pull-in fitting 5 is inserted into the metal fitting holes 4a, 4b of the horizontal structural members 1A, 1B. Attach and fix, and pull the horizontal structural member 1
A and 1B are connected.

Here, in this embodiment, the metal fitting body 10
After the fastening bolts 12 are screwed into both ends of the frame member 1, the pull-in fitting 5 is inserted into and fixed to the fitting insertion holes 4 a and 4 b of the horizontal structural members 1 A and 1 B, but the fastening bolt 12 is screwed into the fitting body 10. Before tightening, the fastening bolts 12 are inserted into and fixed to the metal fitting holes 4a, 4b of the horizontal structural members 1A, 1B with the metal fitting fixing tool 8, and then the one female screw portion 11 of the metal fitting body 10 is tightened with the one tightening bolt. The other of the metal fitting main body 10 is screwed into the male screw portion 13a of the bolt 12, and the metal fitting insertion hole 4a or 4 of the horizontal structural member 1A or 1B.
b, is screwed to the male screw portion 13a of the other tightening bolt 12, and the pull-in fitting 5 is inserted into and fixed to the fitting insertion holes 4a, 4b of the transverse structural members 1A, 1B. 1A,
1B may be connected to each other, and a fastening bolt inserted and fixed in the fitting insertion holes 4a, 4b while inserting both ends of the fitting body 10 into the fitting insertion holes 4a, 4b of the horizontal structural members 1A, 1B. The twelve male screw portions 13a may be screwed simultaneously. In addition, after one fastening bolt 12 is screwed into one female screw portion 11 of the metal fitting body 10, the fastening screwed to the metal fitting body 10 in the metal fitting insertion hole 4 a or 4 b of the horizontal structural member 1 A or 1 B. The bolt 12 is inserted and fixed, and the horizontal structural member 1 is fixed.
Only the other tightening bolt 12 is inserted and fixed in the metal fitting hole 4b or 4a of B or 1A, and then the other of the metal fitting body 10 is inserted into the metal fitting hole 4b or 4a, and the other female screw portion of the metal fitting body 10 is inserted. The other fastening bolts 12 may be screwed to the connector 11 and the horizontal structural members 1A and 1B may be connected.
Note that an adhesive may be applied to the outer peripheral surface of the metal fixture 8, the fixing holes 7 and the metal fixing holes 6, and the metal fixture 8 may be bonded and fixed to the fixing holes 7 and the metal fixing holes 6. Thus, the metal fixture 8 can be prevented from dropping out of the fixing holes 7 and the metal fixing holes 6, and the pull-in metal 5 can be connected to the metal fitting holes 4a, 4a.
4b can be prevented from rattling and the rigidity of the joint can be improved.

Next, after the connection work of the structural members of the other joints is completed, and each joint is adjusted, in the tightening step, the connecting member 10a of the metal fitting body 10 of the pull-in metal fitting 5 is moved to the tightening operation part 10a. Fitting body 1 by engaging tools such as spanner and monkey spanner
0, the horizontal structural members 1A, 1B are
a, 2b side. When the joining surfaces 2a and 2b of the horizontal structural members 1A and 1B are close to each other and a tool such as a wrench cannot be inserted between the horizontal structural members 1A and 1B, a tool such as a wrench is inserted into the tightening groove 9 and tightened. A tool is engaged with the attachment working portion 10a, and the bracket main body 10 is rotated by the tightening groove 9. As shown in FIG. 1, the concave portion 3a of the horizontal structure member 1A and the horizontal structure member 1B
Are tightened until the projections 3b are fitted and the joining surfaces 2a, 2b abut. Here, when a tool such as a spanner is engaged with the tightening work portion 10a, a tool may be inserted into the tightening groove 9 from the beginning to engage the tool with the tightening work portion 10a. As a tool such as a spanner, a thin tool such as a plate tool is preferably used. Thereby, the notch width of the fastening groove 9 can be reduced, and a decrease in the strength and rigidity of the transverse structural member 1A can be suppressed.

Next, after removing a tool such as a wrench from the fastening groove 9 of the horizontal structural member 1A, in the embedding step, the embedding material 14 is inserted into the fastening groove 9 from the side of the notch 14a. The member 14 is fitted and fixed in the fastening groove 9. Here, an adhesive may be applied to the embedding material 14 and the fastening groove 9, and the embedding material 14 may be bonded and fixed to the fastening groove 9. In the case where the horizontal structural members 1A and 1B are not fixed by gluing, the horizontal structural members 1A and 1B are thinned.
When the joint between A and 1B is loose, the embedding material 14 is removed, a tool such as a spanner is inserted into the tightening groove 9, and the tool is engaged with the tightening work portion 10a to increase the tightening. You can do it too.

As described above, according to the joining structure of the structural members and the joining method in the first embodiment, the following operations are provided. (1) The horizontal structure members are connected to each other by inserting and fixing the metal fittings into the metal fitting holes formed in the joint surfaces of the horizontal structural members such as beams, girders, and foundations of the wooden building. Can be attracted to the joining surface side to join them intimately. (2) Since the horizontal structural members can be joined to each other by the pull-in metal fittings inserted into the metal fitting insertion holes of the horizontal structural members, reliable and high-strength bonding can be performed, and the earthquake resistance of the building can be improved. (3) The fixing hole and the metal fixing hole are formed substantially orthogonal to the metal fitting insertion hole, and the fixing hole and the metal fixing hole are formed in a circular cross section. The pin shape and the rod shape prevent the stress from being concentrated on the fitting fixing holes, fixing holes, and part of the fixing fixtures. The fixing fixtures sink into the inner peripheral wall of the fixing holes and fixing holes. Difficult
It is possible to prevent the bracket fixing hole, the fixing hole, and the bracket fixing member from being damaged, and to improve the strength of the horizontal structural member and the bracket fixing member. (4) Since one of the horizontal structural members is provided with a notched fastening groove, a tool can be inserted into the tightening groove even when the joining surfaces of the horizontal structural members approach or come into contact with each other. The metal fitting body of the pull-in fitting can be operated, and the horizontal structural members can be securely joined together.Also, when looseness occurs at the joint between the horizontal structural members due to thinning of the tree, etc. By inserting the tool and operating the fitting main body of the pulling fitting, the tightening of the joint can be easily increased. (5) The pulling metal fitting has a female screw part formed on one end of the metal fitting body with one being right-handed and the other being left-handed, and the male screw part of the tightening bolt is right-handed or left-handed. Since it is formed in a shape, the fastening bolts are inserted and fixed in the fitting insertion holes of each horizontal structure member, and the bracket body is screwed to the fastening bolt and rotated, so that both horizontal structure members can be easily Can be attracted to the joint surface side, and the joining operation between the horizontal structural members can be simplified. (6) Since the horizontal structural members can be joined only by engaging a tool such as a wrench with the tightening work portion and rotating the bracket main body, the joining force of the joint between the horizontal structural members can be easily adjusted. . (7) Since the metal fitting body and the tightening bolt are screwed together with the female screw part and the male screw part, the screwing part of the metal fitting body and the tightening bolt works effectively against the tensile force acting on the horizontal structural member, The horizontal structural members can be securely and firmly joined to each other. (8) Since the joining surface of each horizontal structural member has a large insertion portion including a concave portion and a convex portion, the concave structural portion can be fitted to the horizontal structural member by fitting the concave portion and the convex portion. The joining can be performed without shifting the joining surface of the horizontal structure members, and the metal fitting insertion holes formed in the respective horizontal structure members can be reliably connected to each other and communicated. (9) Since the embedding material is buried in the tightening groove, the embedding material is buried in the tightening groove, thereby preventing the pull-in fitting from being exposed to the outer peripheral wall surface of the horizontal structural member. It is possible to improve the appearance and prevent the dew condensation from occurring on the draw-in fitting, thereby preventing rust on the draw-in fitting and corrosion of the horizontal structural member. (10) Since the embedding material can prevent the pulling fitting from being exposed to the outer peripheral wall side of the horizontal structural member, particularly, in the event of a fire, the pulling fitting is heated and becomes a thermal bridge, and the horizontal structural member is formed. It is possible to prevent the inside from being carbonized and the joint from collapsing. (11) After forming a metal fitting insertion hole, a fixing hole, and a tightening groove in the hole forming step and the tightening groove forming step, the pulling metal fitting is inserted into the metal fitting inserting hole in the inserting / connecting step, and the metal fitting fixing tool is used. Insert and fix,
Next, in the tightening step, the horizontal structural members can be pulled together to the joining surface side by the pulling metal fitting to join the horizontal structural members together, and the structural members can be easily joined in a small number of working steps. (12) In the inserting / connecting step, the horizontal structural members can be connected to each other by inserting and fixing the pulling metal fittings to the metal fitting insertion holes of the horizontal structural members. After the connection, the connecting work of the other joints can be performed. As a result, the horizontal structural members can be connected to each other in the tightening process while adjusting with the other joints. The workability is excellent and the joining accuracy can be improved. (13) Since it has a large insertion portion, each horizontal structure member can be temporarily fixed at the large insertion portion, and each work can be performed at the time of the operation of the pull-in metal fitting and the fixing work of the metal fitting fixing part to the metal fitting fixing hole. Since the horizontal structural members are temporarily supported, work can be performed with peace of mind, and workability and safety are excellent. (14) When dismantling a wooden building, remove the embedding material,
The joining can be easily released by operating the pulling fitting in the opposite direction to that at the time of joining, so that the structural member can be effectively used and resource saving is excellent. (15) When the hole forming process and the tightening groove forming process are pre-cut at the factory, the dimensional accuracy of the hole forming and the tightening groove forming can be improved, and the work on the construction site can be reduced, and the workability on the construction site can be reduced. Can be further improved.

(Embodiment 2) Regarding a joint structure between a horizontal structural member and a vertical structural member in Embodiment 2 of the present invention,
This will be described below with reference to the drawings. FIG. 4A shows the second embodiment.
FIG. 4B is a main part cross-sectional plan view showing a joint structure between the horizontal structural member and the vertical structural member in FIG. 4. FIG. 4B is a main part cross-sectional side view showing a joint structure between the horizontal structural member and the vertical structural member in Embodiment 2. FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In FIG. 4, reference numeral 20 denotes a horizontal structural member such as a beam or a girder of a wooden building made of wood, laminated wood, or the like joined at one end surface, and 20a denotes a horizontal structural member 20.
A vertical structural member 21 such as a pillar of a wooden building made of wood, glued laminated wood or the like with the horizontal structural member 20 bonded to one side surface at an end face of the vertical structural member 21;
Vertical structural member 2 to which horizontal structural member 20 is joined on one side surface
The joint surface 22 has a convex portion 22a formed in a convex shape on the joint surface 20a of the horizontal structural member 20 and a concave portion 2 formed in a concave shape on the joint surface 21a of the vertical structural member 21 and fitted with the convex portion 22a.
A large insertion portion made of 2b, 23a is a metal fitting insertion hole having a circular cross section formed by drilling a predetermined depth at two locations on the joining surface 20a of the horizontal structural member 20, and 23b is located at two locations on the joining surface 21a of the vertical structural member 21. A metal fitting insertion hole with a circular cross section perforated to a predetermined depth,
Reference numeral 24 denotes a pull-in fitting which is inserted into the fitting insertion holes 23a and 23b to draw the horizontal structural member 20 and the vertical structural member 21 toward the joining surfaces 20a and 21a, respectively, and join the horizontal structural member 20 and the vertical structural member 21. The metal fitting insertion holes 23a, 2b are formed at right angles to the metal fitting insertion holes 23a, 23b from the outer peripheral wall surfaces of the horizontal structural member 20 and the vertical structural member 21 on both ends of the pull-in metal fitting 24.
A fixing hole 26 having a circular cross section penetrating and penetrating the opposing outer peripheral wall surface is provided at one end of the pulling fitting 24 on the side of the horizontal structural member 20, and a fitting fixing hole 6 and a pulling fitting 24.
A fitting insertion hole portion 27 pierced through at a substantially right angle to the longitudinal direction of the mounting member 27 communicates with the fitting insertion hole 23a at a substantially right angle with the fitting insertion hole 23a and the fixing hole 25 from the outer peripheral wall surface of the horizontal structural member 20. Is a support fitting made of a coach screw or a lag screw inserted and fixed in the insertion hole 27 and the fitting insertion hole 26, and 29 is a joining surface of the horizontal structural member 20. It is a slit-shaped fastening groove formed between the joint surface 20a and the joining surface 21a of the vertical structural member 21 so as to communicate with the fitting insertion holes 23a and 23b.

Here, as the bracket insertion holes 23a and 23b, the horizontal structural member 20, the vertical structural member 21, the pull-in bracket 2
4 and three to ten times the outer diameter of the pull-in fitting 24 from the outer peripheral wall surfaces of the horizontal structural member 20 and the vertical structural member 21 in accordance with the size of 4, the number of the fitting insertion holes 23a and 23b, and the like. ing. Accordingly, when the metal fitting insertion holes 23a and 23b are pierced, or when the horizontal structural member 20 and the vertical structural member 21 are joined by the pull-in metal 24, the outer peripheral wall surfaces of the horizontal structural member 20 and the vertical structural member 21 are formed. Cracks and the like can be prevented from being damaged. In the second embodiment, the fitting insertion holes 23a, 23
3b is formed at two locations on each of the horizontal structural member 20 and the vertical structural member 21, but depending on the size of the horizontal structural member 20 and the vertical structural member 21, the size of the pull-in fitting 24, and the like. Two or more horizontal structural members 20 and vertical structural members 21 may be formed. Thereby, the joining force between the horizontal structural member 20 and the vertical structural member 21 can be adjusted. In the second embodiment, the metal fitting hole 26 is formed closer to the end of the metal fitting 24 than the metal fitting hole 6 in the second embodiment. It may be formed on the end side of the pulling fitting 24. As the fastening groove 29, the projecting length of the convex portion 22 a formed on the joint surface 20 a of the horizontal structural member 20 is formed longer than the depth of the concave portion 22 b formed on the joint surface 21 a of the vertical structural member 21, It is formed such that a gap is formed between the joining surfaces 20a and 21a when the projection 22a is fitted into the recess 22b. The metal fitting 24, the metal fixture 8, and the support metal 28 are made of iron products such as stainless steel, chromium, steel, and carbon steel, aluminum alloys and the like, or rust-proof metal, or What is formed by processing an organic or inorganic fiber such as carbon fiber, boron fiber, glass fiber, and metal fiber and a synthetic resin is used.

Next, a drawing fitting according to the second embodiment will be described with reference to the drawings. FIG. 5 is an exploded perspective view of a main part of the pulling fitting according to the second embodiment. In FIG. 5, 30 is a rod-shaped bracket main body having a hexagonal cross section, and 30a.
6 is formed on the outer peripheral surface over the entire length of the fitting body 30.
A tightening work portion 31 consisting of a flat surface portion is provided at both ends of the bracket main body 30, one of which is a right-handed male screw, the other is a left-handed male screw portion, and 32 a and 32 b are screwed to the male screw portion 31 at one end. It is a tightening nut having a female screw portion 33 formed in a right-handed or left-handed shape. The fitting insertion hole 26 is formed on the other end of the fastening nut 32a with a circular cross section substantially perpendicular to the longitudinal direction of the fitting fixing hole 6 and the fastening nut 32a (the pull-in fitting 24). It is perforated through 32a. Here, the female screw portion 33 only needs to be formed up to the metal fitting fixing hole portion 6, and the female screw portion 33 and the male screw portion 31 connect the metal fitting 24 to the metal fitting insertion holes 23 a of the horizontal structure member 20 and the vertical structure member 21. When the male screw portion 31 and the female screw portion 33 are screwed into the fixing member 23b, the horizontal structural member 20 and the vertical structural member 21 are pulled toward the joint surfaces 20a and 21a, respectively, and the convex portion 22a And the recess 22b are fitted to each other to
0 and the length of the vertical structural member 21 can be joined.

The joining method of the structural member of Embodiment 2 configured as described above will be described below with reference to the drawings. FIG. 6 is an exploded perspective view of a main part of a joint structure of a structural member according to the second embodiment. Embodiment 1
The same components as those described above are denoted by the same reference numerals, and description thereof is omitted.
First, in the hole forming step, metal fitting insertion holes 23 are formed in the joint surfaces 20a, 21a of the horizontal structural member 20 and the vertical structural member 21.
a, 23b, and through the outer peripheral wall surfaces of the horizontal structural member 20 and the vertical structural member 21, metal fitting insertion holes 23a, 23b.
The fixing hole 25 is formed substantially at a right angle. Next, in a mounting hole forming step, a mounting hole 27 is formed from the outer peripheral wall surface of the horizontal structure member 20 so as to communicate with the metal fitting hole 23a substantially at right angles to the metal fitting hole 23a and the fixing hole 25. Next, in the tightening groove forming step, a convex portion 22a is formed on the joint surface 20a of the horizontal structural member 20, and a concave portion 22b is formed on the joint surface 21a of the vertical structural member 21. here,
The protrusion length of the protrusion 22a is longer than the depth of the recess 22b so that a gap is formed between the joint surfaces 20a and 21a when the protrusion 22a and the recess 22b are fitted. (The depth of the concave portion 22b is shallower than the protruding length of the convex portion 22a). Note that the hole forming step, the insertion hole forming step, and the fastening groove forming step may be performed at a construction site or may be pre-cut at a factory, and each forming step is performed in an arbitrary order.

Next, in the inserting / connecting step, the fastening nuts 32a, 32b
Then, the tightening nut 32a side of the pulling fitting 24 into which the female screw portion 33 is screwed is inserted into the fitting insertion hole 23a of the horizontal structural member 20, and then the fitting fixing tool 8 is inserted into the fixing hole 25 and the pulling fitting 24. And the fastening nut 32a side of the pull-in fitting 24 is inserted and fixed to the horizontal structural member 20. Next, the tightening nut 32b side of the pull-in fitting 24 is inserted into the fitting insertion hole 23b of the vertical structural member 21, and then the fitting fixing tool 8 is fixed to the fixing hole 25 of the vertical structural member 21 and the fitting of the tightening nut 32b. The pulling fitting 24 is inserted into the fixing hole 6 and the tightening nut 32b side of the pulling fitting 24 is inserted and fixed to the vertical structural member 21. , 23b and the horizontal structural member 20 and the vertical structural member 21 are connected. Here, the pulling fitting 24 is simultaneously inserted into and fixed to both of the fitting insertion holes 23a and 23b drilled at two locations on the joint surfaces 20a and 21a, respectively, and as shown in FIG. 24
The horizontal structural member 20 and the vertical structural member 21 are connected with each other.
When the metal fixture 8 is inserted into the fixing hole 25 and the metal fixing hole 6, an adhesive is applied to the metal fixing fixture 8, the fixing hole 25, and the metal fixing hole 6, and the metal fixture 8 is removed. It may be fixed by bonding. This can prevent the metal fixture 8 from dropping out of the fixing holes 25 and the metal fixture holes 6, and can securely pull the metal fitting 24 into the horizontal structural member 20 or the vertical structural member 2.
1 and the joining strength and rigidity of the horizontal structural member 20 and the vertical structural member 21 can be improved.

Next, in the support fitting inserting step, the support fitting 28 formed of a coach screw or a lag screw is inserted into the fitting hole 27 of the horizontal structural member 20 and the fitting fitting hole of the tightening nut 32 a of the pulling fitting 24. 26, the distal end is screwed to the horizontal structure member 20, and the support fitting 28 is inserted and fixed to the horizontal structure member 20. Here, the supporting fitting inserting step is performed by pulling the fitting 2 into the fitting inserting hole 23 b of the vertical structural member 21.
4 may be performed before the fastening nut 32b side is inserted and fixed. In the inserting / connecting step, the tightening nuts 32a and 32b are screwed to the metal fitting body 30, and then the pulling metal fitting 24 is connected to the metal fitting insertion holes 23a of the horizontal structural member 20 and the vertical structural member 21.
23b, and only the fastening nuts 32a and 32b are first inserted and fixed in the metal fitting holes 23a and 23b of the horizontal structural member 20 and the vertical structural member 21.
May be screwed onto the tightening nuts 32a and 32b, and the horizontal structural member 20 and the vertical structural member 21 may be connected. Further, the tightening nut 32a or 3
After screwing 2b, pulling fitting 24 and tightening nut 32a
Or 32b is fixedly inserted into the bracket insertion holes 23a and 23b of the horizontal structural member 20 and the vertical structural member 21, and the horizontal structural member 2
0, the vertical structural members 21 may be connected.

Next, after the connection work of the structural members of the other joints is completed and each joint is adjusted, in the tightening process, a spanner or a monkey spanner is attached to the tightening work part 30a of the pull-in fitting 24. The tool main body 30 is rotated by engaging a tool such as
a and 21a, respectively, and as shown in FIG.
It is tightened until b is fitted. Here, a tool such as a wrench is inserted from the tightening groove 29 and is engaged with the tightening work portion 30 a of the pull-in fitting 24.

Next, after removing a tool such as a wrench from the tightening groove 29, in the embedding step, the embedding material 14 is cut into the notch 1
4a into the tightening groove 29, and insert the embedding material 14 into the tightening groove 2.
9 and fixed. Here, an adhesive may be applied to the embedding material 14 and the fastening groove 29, and the embedding material 14 may be bonded and fixed to the fastening groove 29. When the joint is loose due to the thinning of the horizontal structural member 20 and the vertical structural member 21, the embedded material 14 is removed, a tool such as a spanner is inserted into the tightening groove 29, and the tool is inserted. Engagement is performed with the tightening operation unit 30 to perform additional tightening.

As described above, according to the joining structure of the structural members and the joining method in the second embodiment, the first embodiment
In addition to the action described above, it has the following action. (1) By inserting and fixing a drawing metal fitting into a metal fitting insertion hole formed in a joint surface between the horizontal structural member and the vertical structural member, the horizontal metal member and the vertical structural member are respectively connected to the joint surface side by the metal fitting. And can be closely joined together. (2) Pull-in fittings in which fitting insertion holes are formed at a plurality of locations on the joint surface between the horizontal structure member and the vertical structure member, and the horizontal structure member and the vertical structure member are respectively inserted and fixed in the plurality of fitting insertion holes. Therefore, the horizontal structure member and the vertical structure member can be reliably joined even when the joining surface is large, and the joining strength of the joining portion can be improved because the joining is performed by a plurality of pull-in fittings. (3) Since the pulling fitting is fixed to the horizontal structural member with the support fitting and the fitting fixing fitting, the drawing fitting is inserted into the fitting insertion hole,
It is possible to more securely insert and fix, and it is possible to improve the joining strength of the joining portion between the horizontal structural member and the vertical structural member by the pull-in fitting. (4) Since there is a support fitting inserted and fixed substantially at a right angle to the longitudinal direction of the pulling fitting and the fitting fixing tool at the end of the pulling fitting on the side of the horizontal structural member, an external force acting on the transverse structural member is provided. By this, it is possible to prevent the horizontal structure member and the pulling fitting from being twisted
The joint strength can be improved, the deformation of the pull-in fitting can be prevented, and the inner peripheral wall of the fitting through-hole and the outer peripheral wall of the horizontal structural member can be broken and damaged by the pull-in fitting inserted into the fitting through-hole. Can be prevented, and the strength of the horizontal structural member can be improved.

(Embodiment 3) A joint structure of a vertical structural member and two transverse structural members joined to opposing side walls of the vertical structural member in Embodiment 3 of the present invention will be described below with reference to the drawings. I do. FIG. 7A is a cross-sectional plan view of a main part showing a joint structure between a vertical structural member and two horizontal structural members according to the third embodiment, and FIG. It is principal part sectional side view which shows the joining structure of two horizontal structural members. In FIG. 7, reference numeral 40 denotes a vertical structural member such as a pillar of a wooden building made of wood, laminated wood, or the like;
0b is a joint surface of the opposite side surface of the vertical structural member 40, 41
A, 41B are one end surfaces of the joining surfaces 40a of the vertical structural member 40,
40a, 42b, a horizontal structural member such as a beam, a girder, a base, etc. of a wooden building made of wood, laminated wood, etc.
Are the end faces of the horizontal structural members 41A, 41B,
The joint surface 43 of the horizontal structural members 41A and 41B to be joined to 40b, a concave portion 43a formed in the joint surfaces 40a and 40b of the vertical structural member 40 and the horizontal structural members 41A and 41
B are formed on the joining surfaces 42a and 42b in a convex shape,
Large insertion portion 44a, 4 made of a convex portion 43b fitted to
4b is a joint surface 42a, 4 of the horizontal structural members 41A, 41B.
2b, a metal fitting insertion hole having a circular cross-section and having a predetermined depth.
Reference numeral 44c denotes a through hole having a circular cross section which penetrates through the joint surfaces 40a and 40b of the vertical structural member 40 and communicates with the through holes 44a and 44b. Reference numeral 45 denotes a through hole 44a, through hole 44c, and through hole. 44b, the horizontal structural members 41A, 41B are joined to the joining surfaces 40a, 40 of the vertical structural member 40.
b and the vertical structural member 40 and the horizontal structural member 4
A metal fitting for joining 1A and 41B, 46 is a metal fitting fixing hole portion penetrated at both ends of the metal fitting 45 substantially perpendicular to the longitudinal direction of the metal fitting 45, and 47 is a metal fitting 45
A fixing hole having a circular cross section is formed by penetrating through the outer peripheral wall surfaces of the horizontal structural members 41A and 41B at both end sides substantially at right angles to the fitting insertion holes 44a and 44b, and 48 is a fixing hole 47 and a drawing fitting. 45 is a metal fixture fixedly inserted in the metal fixing hole 46 and fixed to the metal fitting through holes 44a and 44b, and 49 is a metal fixing hole 4 at both ends of the metal fitting 45.
6 and a fitting insertion hole portion penetrating substantially perpendicularly to the longitudinal direction of the pull-in fitting 45 from the fitting fixing hole portion 46 to the end side, 50 is a fitting from the outer peripheral wall surface of the horizontal structural members 41A, 41B. Insertion holes 51 having a circular cross section penetrating through the transverse structural members 41A, 41B substantially at right angles to the insertion holes 44a, 44b and the fixing hole 47, and 51 are formed in the insertion holes 50 and the metal fitting insertion holes 49. The support fitting 52, which is inserted and fixed, is the vertical structural member 40.
A slit-shaped tightening groove formed between the joint surface 40b of the first member 40 and the joint surface 42b of the horizontal structure member 41B so as to communicate with the metal fitting hole 44b. This is an embedding material which is buried after inserting and fixing the support metal 48 and the support fitting 51.

Here, the fitting through holes 44a, 44b and the fitting through hole 44c into which the pull-in fitting 45 is inserted are arranged such that their respective axes are coplanar at two places in the longitudinal direction of the vertical structural member 40. Is formed. As a result, as shown in FIG. 7 (b), one fitting is provided in the metal fitting hole 49 of the two metal fittings 45.
The two support fittings 51 can be inserted, and the two pull-in fittings 45 can be fixed simultaneously by one support fitting 51. In addition, depending on the size of the horizontal structural members 41A and 41B, the vertical structural member 40, and the pull-in metal 45, the horizontal structural members 41A and 41B and the vertical holes are used as the metal fitting insertion holes 44a and 44b and the metal fitting through holes 44c. It is formed at a position 3 to 10 times the outer diameter of the pull-in fitting 5 from the outer peripheral wall surface of the structural member 40. Accordingly, when the metal fitting insertion holes 44a and 44b and the metal fitting through hole 44c are pierced, or when the vertical structural member 40 and the horizontal structural members 41A and 41B are joined by the drawing metal 45, the vertical structural member 40 and the horizontal Cracks or the like occur on the outer peripheral wall surfaces of the structural members 41A and 41B, and the vertical structural member 40 and the horizontal structural member 41
A and 41B can be prevented from being damaged. In the case where the width in the width direction of the horizontal structural members 41A, 41B is large, the metal fitting insertion holes 44a, 44b and the metal through hole 44c may be formed in the width direction of the horizontal structural members 41A, 41B two or more. Particularly, in particular, two or more fitting insertion holes 44a, 44 so that the respective axes are coplanar in the width direction of the horizontal structural members 41A, 41B.
b, when the fitting through hole 44c is formed,
a, 44b, and one fitting fixture 48 can be inserted into the fitting fixing hole 46 of each drawing fitting 45 inserted through the fitting through-hole 44c. It can be inserted and fixed by the metal fixture 48. Further, two or more metal fitting holes and metal fitting through holes are formed in the longitudinal direction of the vertical structural member 40 in accordance with the sizes of the horizontal structural members 41A and 41B, the vertical structural member 40, and the pull-in fitting 45. Is also good.

The metal fittings 45, the metal fittings 48, and the supporting metal fittings 51 are made of iron products such as stainless steel, chromium, iron and steel, carbon steel, and the like, or are made of metal such as aluminum alloy or rust-proof metal. What is formed by processing an organic or inorganic fiber such as carbon fiber, boron fiber, glass fiber, and metal fiber and a synthetic resin is used. Further, similarly to the second embodiment, the concave portion 43a and the convex portion 43b of the large insertion portion 43 have the joint surface 40 when the convex portion 43b is fitted into the concave portion 43a.
b and 42b are formed so as to form a gap. Thereby, since it has a large insertion portion, each horizontal structure member can be temporarily fixed at the large insertion portion, and when the work of drawing metal and the fixing of the metal fixing device to the metal fixing hole are performed, Since the horizontal structure member is temporarily supported, work can be safely performed. Further, in the present embodiment, the support fitting 5
According to the shape of No. 1, the diameter of both ends (opening side) of the insertion hole 50 is formed larger than the diameter of the metal fitting insertion hole 49. Thereby, both ends of the support fitting 51 can be screwed and fastened with nuts, or an embedding material can be embedded at both end sides of the insertion hole 50, thereby holding the support fitting and protecting it from a fire in case of fire. The collapse of the structure can be prevented.

Next, a drawing fitting according to the third embodiment will be described with reference to the drawings. FIG. 8 is an exploded perspective view of a main part of the pulling fitting according to the third embodiment. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In FIG. 8, reference numeral 45 denotes a right-handed or left-handed male screw part 1 which is screwed to the female screw part 11 at one end.
3 a protrudingly provided, a metal fitting fixing hole 46 pierced through the bolt head 13 b on the other end side in a circular cross section substantially perpendicular to the longitudinal direction of the male screw part 13 a, a metal fitting fixing hole 46 and a male screw part This is a fastening bolt having a metal fitting insertion hole portion 49 which is formed by penetrating through a circular cross section substantially perpendicularly to the longitudinal direction of 13a.

Next, the metal fixture in the third embodiment will be described with reference to the drawings. FIG. 9 is an exploded perspective view of a main part of the metal fixture according to the third embodiment. In FIG. 9, reference numeral 48 denotes a metal fixture according to the third embodiment;
Reference numeral 56 denotes a head of the metal fixture 48, reference numeral 56 denotes a body projected from one end of the head 55 and inserted into the fixing holes 47 of the horizontal structural members 41A and 41B and the metal fixing holes 46 of the drawing metal 45. 5
6a is a bolt portion formed in a male screw shape at the end of the body portion 56, 57 is a nut portion screwed to the bolt portion 56a and formed in a bag nut shape, and 58a is a cross-shaped notch in the other end surface of the head portion 55. The formed engaging portion, 58b is a cross-shaped notch formed on one end surface of the nut portion 57, and 59 is an adhesive injection penetrated from the other end surface of the head portion 55 to the body portion 56 side. The hole 59 a is an injection hole of the adhesive injection hole 59, 59.
b denotes a discharge port of the adhesive injection hole 59.

Here, in the third embodiment, the bolt 56
a is formed over the entire length of the body portion 56, and the outer peripheral surface of the body portion 56 is formed in a thread-like uneven surface. The engaging portions 58a and 58b are formed in a minus shape, a star shape, a hexagonal shape, or the like, in addition to a cross shape. Also, the torso 56
In the third embodiment, the diameter is smaller than the diameter of the head portion 55 and the nut portion 57, and is formed to have a size that can be inserted into the fitting fixing hole portion 46. Note that the diameter of the body portion 56 is set to be 3 times larger than the diameter of the metal fitting fixing hole 46 of the metal fitting 45.
It is preferable to reduce the size by mm to 6 mm. Thereby, the adhesive can be smoothly injected between the metal fixing holes 46, the fixing holes 47 and the body 56. In addition, as the diameter becomes smaller than 3 mm, the adhesive tends to be unable to be filled smoothly, depending on the fluidity of the adhesive, and as the diameter becomes larger than 6 mm, extra adhesive is injected, which increases the cost. Tend to cause Further, the head 55 and the nut portion 57 are formed in a size that can be fitted into the fixing holes 47. Further, the adhesive injection hole 59 communicates with the metal fitting fixing hole 46. Further, the head 55 or the nut 57
An air vent hole communicating with the adhesive injection hole portion 59 may be perforated at a predetermined portion. Thereby, the adhesive can be injected smoothly. Further, when the adhesive injection hole 59 communicates with the metal fitting insertion holes 44a and 44b, the adhesive injection hole 5
9 can flow into the fitting insertion holes 44a and 44b, and the pulling fitting 45 is connected to the fitting insertion holes 44a and 44b.
a, 44b, and the metal fitting through-hole 44c.

Next, the support fitting according to the third embodiment will be described with reference to the drawings. FIG. 10 is an exploded perspective view of a main part of a support fitting according to the third embodiment. In FIG. 10, reference numeral 51 denotes a support fitting according to the third embodiment, reference numeral 60 denotes a head of the support fitting 51, reference numeral 61 denotes a rod-like portion protruding from one end of the head 60, and reference numeral 62 denotes an end of the rod-like part 61. The male screw portion 63 is a female screw portion 63a screwed to the male screw portion 62.
A nut portion formed into a cap nut shape; 64a is an engaging portion formed by cutting a cross in the other end surface of the head portion 60;
Numeral denotes an engaging portion formed in a cross-shaped notch on the end face of the nut portion 63. Here, the engaging portions 64a and 64b are formed in a minus shape, a star shape, a hexagonal shape, or the like in addition to a cross shape. The head portion 60 and the nut portion 63 are formed in a size that can be fitted to both ends of the insertion hole 50, and the bar-shaped portion 61 is formed in a size that can be inserted into the fitting insertion hole portion 49.

The joining structure of the structural members of Embodiment 3 configured as described above will be described below with reference to the drawings. FIG. 11 is a configuration diagram at the time of joining of the joint fittings of the joint structure of the structural members according to the third embodiment. still,
The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. First, in the hole forming step, metal fitting holes 44a and 44b (not shown) are formed at two predetermined positions on each of the joining surfaces 42a and 42b of the horizontal structure members 41A and 41B, and the vertical structure member 40 is formed. Joining surfaces 40a, 4
In addition, metal fitting through holes 44c (not shown) penetrating the metal fitting through holes 0a, 40b are formed in two places of the joining surfaces 40a, 40b.
A fixing hole 47 (not shown) penetrated perpendicular to 44b is formed. Next, in the insertion hole forming step, each of the metal fitting insertion holes 44a, 44b is formed substantially at right angles to the metal fitting insertion holes 44a, 44b and the fixing hole 47 from the outer peripheral wall surfaces of the horizontal structure members 41A, 41B to the outer peripheral wall surface opposed thereto. A penetrating insertion hole 50 (not shown) is formed. Next, in the tightening groove forming step, the joining surfaces 42 of the horizontal structural members 41A and 41B are formed.
The convex portions 43b are formed on the a and b, and the concave portions 43a are formed on the joining surfaces 40a and 40b of the vertical structural member 40. Here, the convex portion 43b and the concave portion 43a on the side of the horizontal structural member 41B are formed such that a gap is formed between the joint surfaces 42b and 40b when the convex portion 43b and the concave portion 43a are fitted. The protrusion length is longer than the depth of the recess 43a (the recess 4
3a is formed to be shallower than the protruding length of the projection 43b). The hole forming step, the insertion hole forming step, and the tightening groove forming step may be performed at a construction site or may be pre-cut at a factory.

Next, in the inserting / connecting step, the tightening bolts 54 of the pull-in fitting 45 are connected to the horizontal structural members 41A, 41A, respectively.
41B through the metal fitting holes 44a and 44b,
The torso 56 of the metal fixture 48 is inserted from one end of the fixing hole 47 into the metal fixing hole 46 of the metal fitting 45, and the nut 57 is fitted to the other end of the fixing hole 47, and the bolt is formed. The screw 56 is screwed to the nut portion 57, and the tightening bolt 54 of the pull-in fitting 45 is inserted and fixed to the transverse structural members 41A and 41B, respectively.

Next, the metal fitting through hole 44c of the vertical structural member 40
The metal fitting body 10 of the metal fitting 45 is inserted through the metal fitting body 1.
The female screw portions 11 at both ends of the horizontal structural members 41A, 41
B is screwed into the male screw portion 13a of the tightening bolt 54 inserted and fixed to B, and is connected to the joining surface 40a of the vertical structural member 40, the joining surface 42a of the horizontal structural member 41A, and the joining surface 40b of the vertical structural member 40. The concave portion 43a and the convex portion 43b of the joining surface 42b of the bridge structure member 41B are fitted to each other, and the pull-down fitting 45 is connected to the bracket insertion holes 4 of the horizontal structure members 41A and 41B and the vertical structure member 40.
4a, 44b and fitting through holes 44c, and the horizontal structural members 41A, 41B are connected to opposing side surfaces of the vertical structural member 40. Here, only the fastening bolts 54 of the pull-in fittings 45 are first inserted into and fixed to the fitting insertion holes 44a, 44b of the horizontal structural members 41A, 41B, and both ends of the fitting main body 10 are similar to the first embodiment. A fastening bolt 54 is screwed into one end, and one end of the pull-in fitting 45 is connected to the horizontal structural member 41A.
Or, after being inserted and fixed in the fitting insertion hole 44a or 44b of 41B, the other end of the drawing fitting 45 is inserted into the fitting through hole 44c of the vertical structural member 40 and the fitting insertion hole 44b or 44a of the horizontal structural member 41B or 41A. Then, the other end of the pulling fitting 45 may be inserted and fixed to the fitting insertion hole 44b or 44a of the horizontal structural member 41B or 41A. Further, after the fastening bolt 54 is screwed to only one end of the metal fitting body 10,
5 may be inserted and fixed.

Next, in the support fitting inserting step, the rod-shaped portion 61 of the support fitting 51 is inserted from one end of the mounting hole 50 of the horizontal structural members 41A, 41B into the fitting insertion hole 49 of the pulling fitting 45. Then, the nut portion 63 is fitted to the other end of the insertion hole 50, and the male screw portion 62 at the end of the rod portion 61 is screwed to the female screw portion 63 a of the nut portion 63, so that the support fitting 51 is formed.
Is inserted into the horizontal structural members 41A and 41B. Here, in the third embodiment, as shown in FIG. 7B, since two pulling fittings 45 are arranged on the same plane in the longitudinal direction of the vertical structural member 40, two pulling fittings 45 are provided. The rod-shaped portion 61 of the support fitting 51 is inserted into each fitting insertion hole 49 of the drawing fitting 45. When screwing the male screw part 62 and the female screw part 63a,
A screwing operation is performed by applying a tool such as a driver to the engaging portions 64a and 64b. Here, the support fitting insertion process
In the connecting step, after the fastening bolt 54 of the pull-in fitting 45 is inserted into and fixed to the fitting insertion holes 44a, 44b of the horizontal structural members 41A, 41B with the fitting fixing tool 48, or the fastening bolt 54 is fixed by the fitting fixing tool 48. The vertical structure member 40 and the horizontal structure members 41A and 41B may be connected using the metal fitting body 10 of the pull-in metal fitting 45 before the insertion and fixing of the 54.

Next, after the joining operation of the structural members of the other joints is completed and each joint is adjusted, a wrench or a monkey spanner is attached to the tightening work 10a of the pull-in fitting 45 in the tightening process. The bracket main body 10 is rotated by engaging a tool such as the above, so that the horizontal structural members 41A and 41B are
Side, and as shown in FIG.
A, 41B of convex portion 43b and vertical structural member 40 of concave portion 43a
Are tightened until they are fitted. Here, a tool such as a spanner is inserted from the tightening groove 52 and engaged with the tightening work portion 10a of the pull-in fitting 45. The adhesive is injected from the injection port 59a of the adhesive injection hole 59 of the metal fixture 48, and the metal fixture 48 is bonded and fixed to the fixing hole 47 and the metal fixing hole 46 of the drawing metal 45. Here, the metal fixture 48
When the bolt portion 56 is screwed into the nut portion 57, the engaging portion 5
A screwing operation is performed by applying a tool such as a driver to 8a and 58b. Also, in the inserting / connecting step, the metal fixture 48 is used.
Instead of injecting an adhesive into the adhesive injection hole 59 of the vertical structure member 40 and the horizontal structure member 4 in a tightening step described later.
After the fastening work of 1A and 41B is completed, the metal fixture 4
The adhesive may be injected into the adhesive injection hole 59 of No. 8. In particular, when the adhesive injection hole portion 59 communicates with the metal fitting insertion holes 44a and 44b, the adhesive injected into the adhesive injection hole portion 59 can flow into the metal fitting insertion holes 44a and 44b. 45 of the metal fitting body 10 into the metal fitting insertion hole 44.
a, 44b, and the metal fitting through-hole 44c. After the metal fixture 48 is fixed, it is preferable to bury an embedding material at each end thereof. This allows
It is possible to prevent the joint from being damaged due to the melting of the metal fittings due to the flame at the time of fire.

Next, after removing a tool such as a wrench from the fastening groove 52, in the embedding process, the embedding material 14 is cut into the notch 1
4a is inserted into the fastening groove 52, and the embedding material 14 is inserted into the fastening groove 5.
2, and the embedding material 53 is fitted and fixed to both ends of the fixing hole 47 and both ends of the insertion hole 50. Here, the embedding material 14, the fastening groove 52, the embedding material 53 and the fixing hole 4
7. An adhesive is applied to the insertion hole 50, and the embedding materials 14, 53 are applied.
May be bonded and fixed. Here, the horizontal structural members 41A,
41B, when the joint is loose due to the thinning of the vertical structural member 40 or the like, the embedding material 14 is removed, a tool such as a spanner is inserted into the tightening groove 52, and the tool is inserted into the tightening work unit 10a. By engaging, the tightening of the pulling fitting 45 is performed.

As described above, according to the joining structure of the structural members and the joining method in the third embodiment, the following actions are provided in addition to the actions of the first and second embodiments. (1) A pull-in fitting is fixed by inserting and fixing a pull-in fitting in a fitting through-hole drilled in a joining surface of two horizontal structural members and a fitting through-hole drilled in a joining surface of a vertical structural member. Thus, the two horizontal structural members can be pulled toward the vertical structural member side, and the horizontal structural members can be closely joined to the opposing side surfaces of the vertical structural member. (2) Since two pulling fittings are arranged on the same plane in the longitudinal direction of the vertical structural member, and each fitting insertion hole is located on the same straight line parallel to the longitudinal direction of the vertical structural member. One support fitting can be inserted and fixed in each fitting insertion hole of the draw fitting, so that the number of parts can be reduced and the joining force of the joint can be improved. It can be prevented at the same time by the support metal, and the damage of the pull-in metal and the horizontal structural member can be prevented. (3) Since the metal fixture comprises a head, a body having a bolt part, and a nut part, the body part is inserted into a fixing hole or a metal part fixing hole part of a drawing metal part, and the bolt part is connected to the nut part. By screwing, the pulling fitting can be easily inserted and fixed in the fitting insertion hole of the horizontal structural member. (4) Since the head of the metal fixture has an adhesive injection hole at the head thereof, the adhesive is injected from the adhesive injection hole to allow the adhesive to be removed from the outer peripheral portion of the body of the metal fixture or to be pulled. It is possible to fill the fixing holes of the metal fittings and the fixing holes of the horizontal structure members, and it is possible to securely and firmly insert and fix the metal fittings and metal fittings into the metal fitting holes of the horizontal structure members. And the rigidity of the joint can be improved. (5) Since the supporting bracket has a bar-shaped portion protruding from one end of the head, the bar-shaped portion is inserted into the metal fitting insertion holes of two pulling metal fittings on the same straight line. By simply screwing the nut portion on the male screw portion at the end of the rod-shaped portion, the two pull-down members can be fixed to the horizontal structural member with one support member. (6) Since the engaging portions are provided on both end surfaces of the metal fixture and the supporting metal, the bolt portion and the nut portion or the male screw portion and the nut portion can be easily formed by applying a tool such as a driver to the engaging portion. Can be screwed. (7) When the exposed portion of each fitting is buried with an embedding material, it is possible to prevent erosion of the fitting by a flame at the time of a fire and improve the durability of the joint.

[0087]

As described above, according to the joining structure of the structural members and the joining method of the present invention, the following excellent effects can be realized.

According to the first to third aspects of the present invention, (1) a metal fitting is drawn into a metal fitting through hole or a metal fitting through hole formed in a joint surface between a horizontal structural member and a vertical structural member. By inserting and fixing both ends of the drawing metal fittings with the metal fittings, the horizontal structural member and the vertical structural member are drawn toward each joint surface side by the metal drawing metal, and the horizontal structural member and the vertical structural member are respectively drawn. Can be easily brought into close contact with each other, and the joining accuracy can be improved and the workability is excellent. (2) The horizontal structure member and the vertical structure member can be joined with the metal fitting insertion hole or the metal fitting through hole of the horizontal structure member or the vertical structure member. Excellent in structural strength and earthquake resistance of buildings. (3) The metal fitting is fixed to the horizontal structural member or the vertical structure member by the metal fixing hole inserted into the metal fixing hole and the metal fixing hole substantially orthogonal to the metal fitting insertion hole. It is difficult to dig into the horizontal structural member and the vertical structural member, the damage of the horizontal structural member and the vertical structural member can be prevented, the strength of the horizontal structural member and the vertical structural member can be improved, and the safety of the joint can be improved. (4) Since a predetermined portion of the horizontal structural member or the vertical structural member is provided with a fastening groove formed from the outer peripheral wall surface to the bracket insertion hole, the horizontal structural member or the vertical structural member can be made thinner by drying. Even if a gap is created at the joint between the horizontal structure member and the vertical structure member, or if play occurs, the joint can be tightened by operating the pulling bracket from the tightening groove, and the joint is always strong The power can be maintained, and the maintenance management after the construction of the building can be improved. (5) When a plurality of metal fitting insertion holes and metal fitting through holes are formed, and a horizontal structure member and a vertical structure member are joined by a plurality of metal fittings,
In addition to improving the joining strength of the joint, even horizontal and vertical structural members with a large joint area can be joined with multiple pull-in fittings. By adjusting the number of metal fittings, it is possible to cope with various designs and is excellent in versatility. (6) In the case of dismantling a wooden building, the joining of the joining portion can be released by operating the pulling fitting, so that the structural member can be effectively used and the resource saving is excellent.

According to the invention set forth in claim 4, according to claim 1,
The following effects can be obtained in addition to the effects obtained in any one of Items 3 to 3. (1) Since the mounting bracket has a support fitting fixedly inserted in a mounting hole formed in the horizontal structural member and a fitting insertion hole formed in the pulling fitting, the pulling fitting can be more securely moved horizontally. It can be inserted into a frame structure member, and has excellent joint accuracy and joint strength at joints and excellent earthquake resistance. (2) Since the support bracket is inserted substantially at right angles to the longitudinal direction of the pull-down bracket and the bracket-fixing bracket, it is possible to prevent the horizontal structural member and the pull-down bracket from being twisted by an external force, and to improve the joining strength. It is possible to prevent the deformation of the draw-in fitting and improve the strength of the draw-in fitting.In addition, the pull-in fitting inserted into the fitting through-hole may break the inner peripheral wall of the fitting through-hole or the outer peripheral wall of the horizontal structure member. Can be prevented, and the strength of the horizontal structure member can be improved. (3) In particular, when the horizontal structure member or the vertical structure member is joined by two or more pull-down fittings whose fitting-insertion holes are located on the same straight line, the fitting-insertion hole of each pull-down fitting is attached. By inserting and fixing the first support bracket, the respective pull-down brackets can be connected, and the torsion brackets can be prevented from being twisted at the same time, and the joining portion has excellent joining strength and excellent earthquake resistance.

According to the fifth or sixth aspect of the present invention, the following effects can be obtained in addition to the effects obtained by any one of the first to fourth aspects. (1) At both ends of the bracket body and the tightening bolts and nuts,
Since there are female screw portions and male screw portions formed in a right-handed screw shape and a left-handed screw shape, respectively, the pulling metal fittings are inserted into metal fitting insertion holes and metal fitting through holes of the horizontal structure member and the vertical structure member, and tightened. Attach both ends of the pulling fitting to the fixing holes of the horizontal structure member and the vertical structure member with the fitting fixing tool at the fitting fixing holes formed in the attached bolts and tightening nuts. Simply rotate the bracket body by engaging a tool such as a spanner,
Tightening bolts and nuts are screwed to both ends of the bracket body,
Since each of the horizontal structural member and the vertical structural member can be easily drawn to the joining surface side of each other and joined, and the joining workability can be improved, and the mutual structural members to be joined can each be attracted, The joining accuracy can be improved and the workability is excellent. (2) The amount of screwing between both ends of the fitting main body and the tightening bolt or the tightening nut can be adjusted only by rotating the fitting main body, so that the adjustment of the joining force of the connecting portion between the horizontal structural member and the vertical structural member is easy. In addition, when the horizontal and vertical structural members are dried, the gap between the horizontal and vertical structural members due to the thinning of the tree due to drying is increased. Excellent. (3) Since the metal fitting body and the tightening bolt or the tightening nut are screwed with the female screw portion or the male screw portion, when the horizontal structural member or the vertical structural member is joined by the pulling metal, The threaded part of the female thread and the male thread works effectively against the tensile force acting on the vertical structural member, and the horizontal structural member and the vertical structural member can be securely and firmly joined. Excellent in earthquake resistance.

According to the invention of claim 7, according to claim 5,
Or, in addition to the effect of 6, the following effects can be obtained. (1) The support fitting can be inserted into the fitting insertion hole,
It is possible to securely insert and fix the pull-down fittings inserted into the bracket insertion holes and the through-holes of the horizontal structural member and the vertical structural member to the horizontal structural member with both the metal fixing fixture and the support metal, As a result, it is possible to prevent the pulling metal from being twisted in the metal fitting through hole and the metal fitting through hole, thereby preventing damage to the metal pulling metal, and improving the joining strength of the joint between the horizontal structural member and the vertical structural member. Excellent durability and earthquake resistance.

According to the invention described in claim 8, according to claim 1,
The following effects can be obtained in addition to the effects obtained in any one of Items 1 to 7. (1) The body of the metal fixture is inserted into the fixing holes of the horizontal and vertical structural members and the metal fixing holes of the pull-in metal fittings inserted into the metal fitting insertion holes and metal fitting through holes. A tool such as a screwdriver is engaged with the joint, and the bolt at the end of the body is screwed into the nut, and the head and nut are inserted into both ends of the fixing hole, so that the metal fitting Can be easily and securely fixed to the horizontal structural member and the vertical structural member, and the metal fittings can be prevented from dropping out of the fixing holes,
Excellent workability. (2) Since the head has an adhesive injection hole, the adhesive is injected from the adhesive injection hole, whereby the adhesive is applied to the outer peripheral portion of the body of the metal fixture and the metal fitting of the pull-in metal. Fixing holes,
Filled in the fixing holes, the pull-in fitting can be securely and firmly inserted and fixed to the horizontal structural member or the vertical structural member by the metal fixture, so that the joint strength of the joint can be improved and the earthquake resistance is excellent. (3) In particular, there is a gap between the metal fitting insertion hole or the metal fitting through hole and the drawing metal fitting, and when the metal fitting fixing tool is inserted into the metal fitting fixing hole, the metal fitting fixing hole and the metal fitting inserting hole or the metal fitting through hole are provided. When the adhesive is injected from the adhesive injection hole of the metal fixture at one end of the pull-in metal, the adhesive fills the metal fixing hole on the outer periphery of the body of the metal fixture. The metal fitting is inserted into the metal fitting through hole and metal fitting through hole on the outer periphery of the metal fitting, and the adhesive flows out from the adhesive injection hole of the metal fixture at the other end of the metal fitting. Can be filled with an adhesive, and the pulling fitting can be bonded and fixed to the fitting insertion hole or the fitting through hole, so that the rigidity of the joint can be improved and the durability is excellent.

According to the ninth aspect, according to the eighth aspect,
In addition to the effects obtained by the above, the following effects can be obtained. (1) Since the head has an adhesive injection hole, the adhesive is injected from the adhesive injection hole, whereby the adhesive is applied to the outer peripheral portion of the body of the metal fixture and the metal fitting of the pull-in metal. Fixing holes,
Filled into the fixing holes, the metal fittings can securely and firmly insert and fix the pull-in fitting to the horizontal and vertical structural members, increasing the rigidity of the joint and preventing loosening of the joint . (2) In particular, there is a gap between the metal fitting insertion hole or the metal fitting through hole and the pull-in metal. When the metal fitting fixing tool is inserted into the metal fitting fixing hole, the metal fitting fixing hole and the metal fitting inserting hole or the metal fitting through hole are provided. When the adhesive is injected from the adhesive injection hole of the metal fixture on one end side of the pull-in metal, the adhesive fills the metal fixing hole on the outer periphery of the body of the metal fixture. The metal fitting is inserted into the metal fitting through hole and metal fitting through hole on the outer peripheral part of the metal fitting, and the adhesive flows out from the adhesive injection hole of the metal fixture at the other end of the metal fitting. Can be filled with an adhesive, the pull-in fitting can be bonded and fixed to the fitting insertion hole or the fitting through-hole, the rigidity of the joint can be improved, and the durability can be improved.

According to the tenth aspect, the following effects can be obtained in addition to the effects obtained in any one of the first to ninth aspects. (1) The rod portion of the support bracket is inserted into the insertion hole of the horizontal structural member and the bracket insertion hole of the pull-in bracket, and the male screw portion at the end of the rod portion is screwed into the female screw portion of the nut portion. By inserting the head and nut into the insertion hole, the pull-in fitting can be fixed to the horizontal structural member with the support fitting, and since it has a rod-shaped part, two or more Insert the rod into the metal fitting hole of the metal fitting, and attach two or more metal fittings
It is also possible to fix it to the horizontal structural member with a single support bracket even with a plurality of pull-in brackets, thereby improving workability and shortening the construction time. (2) Since the engaging portion is provided on the other end surface of the head and the end surface of the nut portion, a nut or the like can be easily rotated by applying a tool such as a screwdriver to the engaging portion, and the rod portion can be easily rotated. By screwing the nut portion, the support fitting can be securely inserted into the insertion hole and the fitting insertion hole.

According to the eleventh aspect, the following effect can be obtained in addition to the effect obtained in any one of the first to ninth aspects. (1) Since the joining surfaces of the vertical structural member and / or the transverse structural member can be joined via the large insertion portion, the joining surfaces of the vertical structural member and the transverse structural member to be joined are joined without shifting. It is possible to securely join the metal fitting through holes and metal fitting through holes formed in the vertical structural member and the horizontal structural member, and to improve the joining workability of the vertical structural member and the horizontal structural member. .

According to the twelfth aspect of the present invention, in addition to the effects obtained in any one of the first to eleventh aspects,
The following effects can be obtained. (1) By embedding an embedding material in a fastening groove, a fixing hole, or a mounting hole, a pull-in fitting, a fitting fixing tool, and a support fitting are exposed on an outer peripheral wall surface of a horizontal structure member or a vertical structure member. Can be prevented, and dew condensation can be prevented from occurring on the pull-in fittings, the metal fixtures, and the support fittings. Rust on the pull-in fittings, the metal fixtures, and the support fittings, and the horizontal and vertical structural members can be prevented. Corrosion can be prevented, so that the durability of the pull-in fitting, the fitting fixture, and the support fitting can be improved, the durability of the horizontal structure member and the vertical structure member can be improved, and the joining strength of the joint can be maintained. (2) Since the metal fittings, metal fittings, and support metal are not exposed on the outer peripheral wall side of the horizontal structural member and the vertical structural member, the metal metal fittings, metal fittings, and metal support are particularly useful in a fire or the like. When heated, it becomes a thermal bridge, and it is possible to prevent the inside of the bracket insertion hole, the bracket through hole, the fixing hole, and the insertion hole of the horizontal structure member and the vertical structure member from being carbonized, thereby improving the fire resistance of the joint structure. At the same time, the joint can be prevented from collapsing in the event of a fire or the like, and the safety of the joint can be improved. (3) The metal fittings, metal fittings, and support metal are not exposed on the outer peripheral wall surface of the horizontal structural member or the vertical structural member, so that the appearance can be improved, and in particular, it can be used for various designs such as decorative beams. Excellent usability.

According to the thirteenth and fourteenth aspects of the present invention, (1) in the hole forming step and the tightening groove forming step, the metal fitting insertion hole, the metal fitting through hole, the fixing hole, and the tightening groove are formed. In the insertion / connection step, the pulling fitting is inserted into the fitting insertion hole or the fitting through hole, and the vertical structural member or the horizontal structural member is connected. Then, in the tightening step, the horizontal structure is formed by the pulling fitting. The members and the vertical structural members can be attracted to each other and joined to each other, so that the joining of the structural members can be easily performed by a simple operation, and the joining operation does not require skill and is excellent in joining workability. (2) In particular, when the hole forming operation and the groove forming operation in the hole forming step and the tightening groove forming step are performed by pre-cut processing, the dimensional accuracy can be improved and the workability at the construction site can be further improved. (3) The horizontal structural member and the vertical structural member can be connected only by inserting the pulling metal fitting into the metal fitting through hole or the metal through hole of the horizontal structural member or the vertical structural member to be joined. Preparation of the joining operation can be easily performed, and the joint can be securely tightened and joined by simply operating the pulling metal fitting, so that the joining workability and the joining accuracy of the joint are excellent.

According to the fifteenth aspect, the following effect can be obtained in addition to the effect obtained by the thirteenth or fourteenth aspect. (1) Only by forming an insertion hole in the horizontal structural member, the support metal can be inserted into the pull-in metal in the support metal fitting step, and the support metal fitting operation can be easily performed. (2) In particular, when the insertion hole is made by pre-cut processing,
Work on the construction site can be further improved.

According to the sixteenth aspect of the present invention, in addition to the effects of the twelfth to fourteenth aspects, (1) the pulling is performed simply by embedding the embedding material in the working groove, the fixing hole, and the insertion hole. It is possible to prevent the metal fittings, metal fittings, and support metal from being exposed on the outer peripheral wall of the horizontal and vertical structural members, and prevent condensation from forming on the metal fittings, metal fittings, and metal support, as well as fire. At times, the pull-in fitting, the fixture fixing tool, and the support fitting are heated, and the inside of the working groove, the fixing hole, and the insertion hole can be prevented from being carbonized and the joint portion from easily falling down.

[Brief description of the drawings]

FIG. 1A is a cross-sectional plan view of a main part showing a joint structure between horizontal structural members according to the first embodiment. FIG. 1B is a side sectional view showing a main part showing a joint structure between horizontal structural members according to the first embodiment.

FIG. 2 is an exploded perspective view of a main part of the pulling fitting according to the first embodiment.

FIG. 3 is an exploded perspective view of a main part of the joining structure of the structural members according to the first embodiment.

FIG. 4 (a) is a cross-sectional plan view of a principal part showing a joint structure between a horizontal structural member and a vertical structural member according to a second embodiment. Cross-sectional side view of main parts shown

FIG. 5 is an exploded perspective view of a main part of a pulling fitting according to a second embodiment.

FIG. 6 is an exploded perspective view of a main part of a joint structure of a structural member according to the second embodiment.

FIG. 7A is a cross-sectional plan view of a main part showing a joint structure between a vertical structural member and two horizontal structural members according to a third embodiment. FIG. Sectional side view of main part showing joining structure of structural member

FIG. 8 is an exploded perspective view of a main part of a pulling fitting according to a third embodiment.

FIG. 9 is an exploded perspective view of a main part of the metal fixture according to the third embodiment.

FIG. 10 is an exploded perspective view of a main part of a support fitting according to a third embodiment.

FIG. 11 is a configuration diagram of a joining structure of a joining member of a structural member according to a third embodiment at the time of joining of a joining fitting.

[Explanation of symbols]

1A, 1B, 20, 41A, 41B Horizontal structural members 2a, 2b, 20a, 21a, 40a, 40b, 42
a, 42b Joining surfaces 3, 22, 43 Large insert portions 3a, 22b, 43a Concave portions 3b, 22a, 43b Convex portions 4a, 4b, 23a, 23b, 44a, 44b Fitting holes 5, 24, 45 Pulling fittings 6, 46 Fitting fixing holes 7, 25, 47 Fixing holes 8, 48 Fitting fixtures 9, 29, 52 Tightening grooves 10, 30 Fitting main bodies 10a, 30a Tightening work parts 11, 33 Female thread parts 12, 54 Tightening bolts 13a, 31 Male thread portion 13b Bolt head 14, 53 Embedding material 14a Notch portion 21, 40 Vertical structural member 26, 49 Fitting insertion hole 27, 50 Insertion hole 28, 51 Support fitting 32a, 32b Tightening nut 44c Fitting through hole 55 Head 56 Body 56a Bolt 57 Nut 58a, 58b Engagement 59 Adhesive injection hole 59a Inlet 59b Discharge port 60 Head 61 Rod Shaped part 62 Male thread part 63 Nut part 63a Female thread part 64a, 64b Engagement part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA02 AA03 AA12 AA13 AB12 AC23 AC24 AG03 AG04 AG13 AG23 BB08 BB19 BB22 BB24 BB30 BB36 BC06 BD01 BE07 BE08 BF06 BF08 CA03 CA13 CA14 CA23 CA79 EA14 EA17 EA25 EA33

Claims (16)

[Claims] 1. A method comprising: a. Two horizontal structural members or two vertical structural members abutted on a predetermined joint surface; b. One or more fitting insertion holes, each of which is drilled in communication with the joint surface; A pull-down fitting inserted into the fitting insertion hole and pulling the horizontal structural members or the vertical structural members toward the joint surface; d. Metal fitting fixing holes formed at both ends of the metal fitting at a right angle to the longitudinal direction of the metal fitting; e. Fixing holes drilled from the outer peripheral wall surface of the horizontal structural member or the vertical structural member on both end sides of the pull-in bracket at substantially right angles to the bracket insertion holes; f. A fixture fixing tool inserted into the fixing hole and the fitting fixing hole of the pull-in fitting; g. A fastening groove formed in a predetermined portion of the transverse structural member or the vertical structural member from an outer peripheral wall surface to the bracket insertion hole, and a wooden building structural member characterized by comprising: Joint structure. 2. A method comprising: a. A vertical structural member; b. A transverse structural member abutting the vertical structural member; c. One or more fitting insertion holes, each of which is drilled in communication with a joint surface where the vertical structural member and the horizontal structural member abut, d. A drawing fitting inserted into the fitting insertion hole to draw the vertical structural member and the horizontal structural member toward the joint surface; e. Metal fitting fixing holes formed at both ends of the metal fitting at a right angle to the longitudinal direction of the metal fitting; f. Fixing holes drilled from the outer peripheral wall surfaces of the vertical structural member and the horizontal structural member on both end sides of the pull-down metal fitting at a substantially right angle to the metal fitting insertion hole; g. A bracket fixing tool inserted into the fixing hole and the metal fixing hole of the pull-in metal; h. And a tightening groove formed in a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole, wherein a wooden building structure is provided. Member joining structure. 3. The method of claim 1, wherein: a. A vertical structural member; b. Two transverse structural members abutting on opposing side walls of the vertical structural member and disposed via the vertical structural member; c. One or more fitting through-holes penetrated between joining surfaces of the vertical structural members with which the horizontal structural members abut, d. One or more fitting insertion holes drilled in a joint surface of the transverse structural member abutting on the vertical structural member in communication with the fitting through hole; e. A pull fitting inserted into the fitting insertion hole and the fitting through hole to draw the horizontal structure member toward the vertical structure member; f. Metal fitting fixing holes formed at both ends of the metal fitting in a direction substantially perpendicular to the longitudinal direction of the metal fitting; g. Fixing holes drilled from the outer peripheral wall surface of the horizontal structural member on both end sides of the pull-in bracket at substantially right angles to the bracket insertion holes; h. A fixture fixing tool inserted into the fixing hole and the metal fitting fixing hole of the pull-in metal fitting; i. A wooden structure, comprising: a predetermined portion of the vertical structural member and / or the horizontal structural member; and a fastening groove formed from an outer peripheral wall surface to the metal fitting through hole and / or the metal fitting insertion hole. Joint structure of structural members of objects. 4. An attachment hole drilled from the outer peripheral wall surface of the horizontal structural member at a substantially right angle to the fitting insertion hole and the fixing hole, and one or both ends of the pull-in fitting, the fitting fixing hole and A metal fitting insertion hole portion drilled substantially perpendicular to the longitudinal direction of the pull-in metal fitting, and a support metal fitting fixed to the metal fitting hole and the metal fitting insertion hole portion. The joining structure of a structural member of a wooden building according to any one of claims 1 to 3. 5. The pulling fitting comprises: a. A tightening work portion having two or more flat portions on an outer peripheral surface, and female screw portions formed at both ends in a right-handed screw shape and a left-handed screw shape, respectively;
A rod-shaped metal fitting body having b. A fastening bolt having a male screw portion screwed to the female screw portion at one end, and the fitting fixing hole portion drilled at the other end side of the fastening bolt substantially perpendicular to the longitudinal direction of the male screw portion. The joint structure for a structural member of a wooden building according to any one of claims 1 to 4, wherein the structural member is provided. 6. The pulling fitting comprising: a. A tightening work portion having two or more flat portions on the outer peripheral surface, and male screw portions projecting from both ends in a right-handed screw shape and a left-handed screw shape, respectively;
A rod-shaped metal fitting body having b. A tightening nut having a female screw portion screwed to the male screw portion at one end, and the metal fitting fixing hole portion drilled at the other end side of the tightening nut substantially perpendicular to the longitudinal direction of the female screw portion. The joint structure for a structural member of a wooden building according to any one of claims 1 to 4, wherein the structural member is provided. 7. The metal fitting insertion hole, wherein the metal fitting is formed at the other end of the tightening bolt or the nut with a metal fixing hole and a hole substantially perpendicular to a longitudinal direction of the metal pull. The joining structure of a structural member of a wooden building according to claim 5, further comprising a portion. 8. A body, wherein the metal fixture is protruded from one end of the head, and is inserted into the metal fixing hole of the fixing hole and the pull-in metal. A bolt portion formed into an external thread at an end of the nut portion, a nut portion to be screwed to the bolt portion, an engaging portion formed on the other end surface of the head and one end surface of the nut portion, 8. An adhesive injection hole portion perforated from the other end surface of the portion to the body portion, the structural member joining of the wooden building according to any one of claims 1 to 7, characterized in that it is provided. Construction. 9. The structure of a wooden building according to claim 8, wherein the metal fixture has an adhesive injection hole portion drilled from the other end surface of the head to the body. Member joining structure. 10. The support fitting is screwed to a head, a rod-shaped part protruding from one end of the head, a male screw part formed at an end of the rod-shaped part, and the male screw part. 10. A nut portion having a female screw portion, and an engaging portion formed on the other end surface of the head and an end surface of the nut portion. The joining structure of the structural member of the wooden building according to the paragraph. 11. The device according to claim 1, further comprising a large insertion portion formed at each joint surface of the vertical structural member and / or the horizontal structural member. Structure of structural members of wooden buildings. 12. The device according to claim 1, further comprising an embedding material embedded in at least one of the fastening groove, the fixing hole, and the insertion hole. 2. The joint structure of structural members of a wooden building according to claim 1. 13. A. A metal fitting insertion hole is formed in each of the joining surfaces of the vertical structural member and / or the horizontal structural member joined at a predetermined joint surface, and the metal fitting is formed from an outer peripheral wall surface of the vertical structural member and / or the horizontal structural member. A hole forming step of forming a fixing hole substantially at right angles to the insertion hole; b. A tightening groove forming step of forming a tightening groove in a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole; c. An attaching / connecting step of inserting a drawing metal fitting into the metal fitting insertion hole, fixing the drawing metal fitting with the fixing hole, and connecting the vertical structural member and / or the horizontal structural member; d. A tightening step of pulling the vertical structural member and / or the horizontal structural member toward the joint surface side with the pulling fitting and bonding the vertical structural member and / or the horizontal structural member. A method for joining structural members of a wooden building. 14. A. Drilling a metal fitting through hole penetrating the opposed joint surface of the vertical structural member, drilling a metal fitting through hole on each joint surface of the two horizontal structural members joined to the joint surface of the vertical structural member, and A hole forming step of forming a fixing hole from the outer peripheral wall surface of each of the transverse structural members at a substantially right angle to the bracket insertion hole; b. A tightening groove forming step of forming a tightening groove in a predetermined portion of the vertical structural member and / or the horizontal structural member from an outer peripheral wall surface to the bracket insertion hole; c. A pulling fitting is inserted into the fitting insertion hole and the fitting through hole to fix the pulling fitting with the fixing hole, and to connect the vertical structure member and the two horizontal structure members. A coupling step; d. A tightening step of pulling each of the horizontal structural members to the vertical structural member side by the pulling fitting and joining the vertical structural member and the two horizontal structural members. A method for joining structural members of a building. 15. The insertion hole forming step of forming an insertion hole from the outer peripheral wall surface of the horizontal structure member at a right angle to the bracket insertion hole and the fixing hole. 15. The wooden structure according to claim 13, wherein the connecting step includes a support fitting inserting step of inserting a support fitting into the fitting hole and the fitting inserting hole of the pull-in fitting. 16. A method for joining structural members of a building. 16. An embedding step of embedding an embedding material in at least one of the working groove, the fixing hole, and the insertion hole. 2. The method for joining structural members of a wooden building according to claim 1.