JP2013113020A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector configured so as to be used in the case of connecting a plurality of members in various wooden structures for reasonably advancing a construction work even in a state that a metallic fitting is fixed to the member, and for reducing a workload at a job site.SOLUTION: A connector for connecting a branch member 51 to principal members 31 and 41 is constituted of two elements of a metal fitting 11 and a tenon cap 24. The metal fitting 11 shaped like a U character is constituted of a front plate 12 brought into contact with the principal members 31 and 41 and a side plate 13 protruded from both side edges of the front plate 12 so as to be inserted into a slit 53 of the branch member 51, and the front plate 12 is formed with a window hole 18 into which the tenon cap 24 is fit. Also, the tenon cap 24 is formed like a cylindrical shape with a flange 26 arranged at one end, and configured so as to be fit into the window hole 18, and moreover fit into a tenon hole 34 of the principal member 31. The tenon cap 24 is formed so as to be freely attached and detached to and from the metal fitting 11 so that the degree of freedom in construction can be increased, and that the metal fitting 11 can be fixed to the principal members 31 and 41 in a factory.

Description

  The present invention relates to a connector used when connecting a plurality of members in various tree structures.

  In various wooden structures including wooden construction, there are various methods for connecting members together, but in the wooden frame construction method introduced in domestic houses, the method of fitting the tenons into the tenon holes is widespread. . However, this method has problems such as a decrease in strength due to a cross-sectional defect of the member and the need for adjustment work at the site, and in recent years, various metal fittings have been developed as alternatives. Is mentioned.

  Patent Literature 1 discloses a joint metal fitting for building that can improve the joint strength and workability and can reduce the manufacturing cost. This joint fitting is composed of a U-shaped receiving bracket and a rod-shaped fixing bracket. The fixing plate at the center of the receiving bracket is in contact with the side of the column and is connected at right angles from both ends of the fixing plate. The plate is inserted into two rows of grooves machined at the end of the beam. In addition, the fixing bracket is provided with a square washer at one end, and is inserted from a fixing hole provided in the fixing plate toward the column. And after fixing a receiving metal fitting to a pillar using a fixed metal fitting, if the drift pin which penetrates a beam and a connecting plate is driven, the end face of a beam will be joined to the side of a pillar. In the present invention, the joining strength is improved by fixing the receiving metal fitting with the fixing metal fitting.

  Patent Document 2 discloses a shaft assembling method using a box metal fitting for construction. The box-shaped bracket is a U-shape consisting of a central back plate and side plates that project at right angles from both ends of the back plate. The back plate has a columnar hozo-shaped projection and a dharma-shaped projection. And a keyhole-shaped bolt hole. At the time of construction, a bolt is lightly screwed into a wood such as a base in advance, and when the box-type metal fitting is attached to the wood, the head of this bolt is accommodated in the keyhole-shaped bolt hole. Next, when the tenon-like protrusion is inserted into the tenon hole of the wood and finally the bolt is tightened, the box-shaped metal fitting is fixed at a predetermined position. In this method, by providing a keyhole-shaped bolt hole in the box-shaped metal fitting, the work at the time of construction is simplified, and the packaging at the time of transportation can be simplified.

  FIG. 9 shows a specific example of a method of connecting three members of a column, a horizontal member, and a beam, and pipes, metal fittings, and the like are used. The horizontally extending horizontal member is placed on the upper surface of the column, and in order to integrate both, a metal pipe penetrating the upper surface of the column and the lower surface of the horizontal member is inserted. The beam protruding perpendicularly from the horizontal member is connected to the column and the horizontal member via a U-shaped fitting, and the end surface of the beam is in contact with the side surface of the column and the horizontal member. The front plate at the center of the metal fitting has two columnar juts protruding vertically, and the side walls of the pillar and the horizontal member are machined so as to fit the tenon. Furthermore, in order to insert the side plate of the metal fitting, a slit extending in the longitudinal direction is processed at the end of the beam.

  After inserting the pipe so as to penetrate the pillar and the horizontal member, the metal fittings are brought into contact with the side surfaces of the pillar and the horizontal member, and the upper and lower tenons are fitted into the tenon holes. Next, in order to fix the metal fitting, a bolt is inserted between the two side plates. Insert the tip of this bolt into the horizontal hole of the pipe from the front hole of the hozo, penetrate the pillar or horizontal member, and then screw the nut to tighten it, and the bracket is fixed to the side of the pillar and horizontal member The At this time, the pipe is also fixed with bolts. Next, when the side plate of the metal fitting is inserted into the slit of the beam and the drift pin is driven from the side of the beam, the three members of the column, the horizontal member, and the beam are connected.

JP 2010-281192 A Japanese Patent Laid-Open No. 11-190073

  The demand for reducing the cost of wooden construction and shortening the construction period has been persistent, and the amount of work in the field, where labor costs are likely to increase and there are many uncertainties, is being reduced. There is a tendency to perform the work in the factory. Therefore, as shown in Fig. 9, when connecting columns, horizontal members, and beams, as shown in Fig. 10, pipes and metal fittings are assembled into the horizontal members and integrated with bolts. Should be transported. At the site, after the column is upright, the horizontal member is lifted, a pipe protruding from the lower surface of the horizontal member is inserted into the upper surface of the column, the beam is finally lifted, and the side plate of the bracket is slit at the end of the beam Insert the drift pin into the side of the beam.

  However, as shown in FIG. 10, when the pipe and the metal fitting are fixed to the horizontal member, when the pipe protruding from the lower surface of the horizontal member is inserted into the upper surface of the column, the two hozos provided on the front plate of the metal fitting Among them, the lower side interferes with the side surface of the column, and the metal fitting cannot be moved to a predetermined position. As a result, the horizontal member cannot be placed on the upper surface of the column. If a metal fitting provided with a tenon is used in this way, the metal fitting cannot be fixed to a member in the factory for the convenience of construction, and the amount of work at the site may not be reduced. In addition, if a metal fitting without a tenon is used, such a situation does not occur, but a tenon is indispensable in places with severe load conditions.

  The present invention has been developed on the basis of such a situation, and an object of the present invention is to provide a coupler that can easily perform construction work even in a state where a metal fitting is fixed to a member, and can reduce the amount of work on site.

  The invention according to claim 1 for solving the above problem is used to connect a branch material such as a beam to a main material such as a column or a horizontal member, and a front plate that contacts a side surface of the main material; A side plate protruding from both side ends of the front plate and inserted into a slit provided at the end of the branch material, a U-shaped metal fitting, and a horn cap fitted into a horn hole provided in the main material; The metal fitting is fixed to the main member with a bolt and fixed to the branch member with a drift pin or the like, and the front plate is provided with a window hole into which the hozo cap is fitted, and the main material of the hozo cap A connecting tool characterized in that a front hole through which the shaft portion of the bolt is inserted is provided on the side end face, and a flange is provided on the other end face to prevent escape from the window hole. .

  The coupling tool according to the present invention is composed of two elements, a metal fitting and a hozo cap, and is used for coupling wooden members such as columns and beams. The bracket is a U-shape consisting of a rectangular front plate located at the center and a side plate protruding at right angles from both ends, and has a plurality of adjacent appearances with the same appearance as a conventionally popular bracket. These members are integrated so as not to be separated. In the present invention, a member that can be used at various locations in a wooden structure and is in surface contact with the surface side of the front plate of the metal fitting is referred to as a main material, and a member into which the side plate is inserted is referred to as a branch member. The metal fitting is fixed to the main material with a bolt that penetrates the front plate, and is fixed to the branch material with a drift pin that penetrates the side plate.

  The tenon cap is a metal cylinder that protrudes from the front plate, fits into a tenon hole machined in the main material, and restricts the movement of the metal fittings. Conventionally, the structure in which the front plate is subjected to extrusion processing and the tenon that fits into the main material's tenon hole is widely used. However, the tenon cap according to the present invention is manufactured separately from the front plate, It is characterized by being detachable with respect to. In addition, the head of the bolt which fixes a metal fitting to a main material can be accommodated in the inside of a hozo cap. Moreover, the main material side away from the front plate is closed among both end faces of the hozo cap, but a front hole is provided at the center so that the shaft portion of the bolt can be inserted.

  The window hole is a cutout provided on the front plate of the metal fitting to fit the hozo cap. In principle, the insertion of the hozo cap is performed manually, so that the window hole has an accuracy with which the hozo cap can be easily inserted. The brim is for restricting the movement of the hozo cap, and is provided on the branch material side of both end faces of the hozo cap and protrudes to the outer peripheral side so as not to pass through the window hole. In addition, when the bolt inserted in the hozo cap is tightened, the metal fitting is drawn to the main material through the brim.

  In this way, the connecting tool is composed of two elements, the metal fitting and the hoozo cap, and the protrusion from the front plate can be temporarily eliminated by enabling the zozo cap to be fitted into the window hole provided in the metal plate on the front plate. it can. Therefore, at the time of construction, interference between the tenon and the main material can be avoided, the metal fitting can be moved to a predetermined position without difficulty, and then a series of connecting operations can be smoothly advanced by fitting the tenon cap. Moreover, a metal fitting can be fixed to a member in a factory.

  The invention according to claim 2 is used for connecting a branch material such as a beam to a main material such as a column or a horizontal member, and projects from a front plate contacting a side surface of the main material and both side ends of the front plate. And a side plate inserted into a slit provided at an end of the branch member, and a U-shaped fitting made of a side plate, and a tenon cap fitted into a tenon hole provided in the main material, A pin hole or the like is fixed to the branch member, and the front plate is provided with a window hole into which the tenon cap is fitted, and an end face of the hozo cap on the branch member side is provided with a flange for preventing the pin from coming out of the window hole. A shaft rod, which is inserted into a pilot hole provided at the tip of the tenon hole and formed with a male thread on the side peripheral surface, projects from the main material side of the tenon cap, and a nut is provided on the shaft rod. It is possible to draw the metal fitting to the main material by screwing. A consolidated tool for the butterflies.

  The present invention is characterized in that a shaft rod formed with a male screw protrudes from one end of the hozo cap, and the hozo cap also has a function as a bolt. The shaft rod is in the shape of an elongated round bar having a diameter smaller than that of the side hole, and a male screw is formed on the side peripheral surface, and the shaft bar is inserted into a prepared hole formed at the back of the main hole. At the time of construction, when the tenon cap is fitted into the tenon, and then the nut is screwed and tightened to the tip of the shaft rod passing through the lower hole, the metal fitting is drawn to the main material via the tenon cap. Of course, the shaft rod has a length that can penetrate the main material. Note that this hoso cap is also different from that of claim 1 in that it is fitted into the hoso hole to restrict the movement of the metal fitting and that a flange is provided to prevent it from coming out of the window hole. Absent.

  The invention according to claim 3 limits the relationship between the window hole and the fountain cap, and the outer peripheral surface of the collar is a tapered shape that tapers toward the main material side, and the inner peripheral surface of the window hole is The taper shape allows surface contact with the outer peripheral surface of the collar. A flange is provided on the end face of the hoso cap so that the hoso cap does not fall out of the window hole. Although the shape of the collar is free, as in the present invention, the outer peripheral surface is tapered, and the inner peripheral surface of the window hole is also tapered with the same size and inclination, so that both surfaces are in contact with each other to prevent falling off. You can also This invention can be set as the structure which a hozo cap does not protrude to the back surface side of a front plate, and can prevent a contact between a hoso cap and a branch material.

  As in the first aspect of the present invention, a connection composed of two elements: a metal fitting composed of a front plate contacting the main material and a side plate inserted into the branch material, and a hozo cap fitted into the tenon hole of the main material. By using a tool to provide a window hole in the front plate and allowing the tenon cap to be fitted into the metal fitting, it is possible to temporarily eliminate protrusions from the front plate. Therefore, at the time of construction, interference between the tenon and the member can be avoided, the metal fitting can be moved to a predetermined position without difficulty, and a series of operations can be proceeded smoothly. In addition, the metal fittings can be fixed to the parts in the factory, reducing the amount of work at the site. In addition, by fitting the horn cap into the window hole, it is possible to obtain effects such as prevention of movement of the metal fitting and transmission of a vertical load as in the case of the conventional horn.

  As in the second aspect of the present invention, a shaft rod having a male screw is provided at one end of the hozo cap, so that the function as a bolt is added to the hozo cap. Therefore, the number of parts required for construction can be reduced, and simplification of work can be expected.

  According to the third aspect of the present invention, the outer surface of the flange of the hozo cap and the inner surface of the window hole are tapered so that the size and the inclination are equal, so that the hozo cap protrudes to the rear surface side of the front plate. Can be prevented. Therefore, it is not necessary to consider the interference between the hozo cap and the branch material, and the effort at the time of design and construction is reduced.

It is a perspective view which shows the example of a shape of the coupling tool by this invention. It is a perspective view which shows the process which fixes the metal fitting of FIG. 1 to a horizontal member. It is a perspective view which shows the process in which the horizontal member of FIG. 2 which fixed the pipe and metal fittings is transported to the field, and a pillar and a horizontal member are connected. FIG. 4 is a perspective view illustrating a final process of connecting the beams after FIG. 3. In addition to the longitudinal sectional view of FIG. 4, FIG. It is a perspective view which shows the coupling tool of the shape different from FIG. 1, and both the tenon and the tenon cap are located in a line up and down. It is a perspective view which shows the example of a shape of the coupling tool described in Claim 2, and the shaft stick | rod has protruded from the end of the tenon cap. It is a perspective view which shows the process of connecting three members with the connector of FIG. It is a perspective view which shows a prior art, and is a specific example of the method of connecting three members, a pillar, a horizontal member, and a beam. It is a perspective view which shows the state which fixed the pipe and the metal fitting to the horizontal member shown in FIG. 9, Since a lower tenon interferes with a pillar, a horizontal member cannot be mounted on the upper surface of a pillar.

  FIG. 1 shows an example of the shape of a connector according to the present invention. This connector is composed of two elements of the metal fitting 11 and the hozo cap 24, and is used for connecting three members, ie, the column 31, the horizontal member 41, and the beam 51. The column 31 stands upright from the foundation, and the horizontal member 41 and the beam 51 are laid horizontally, and both are supported by the column 31. The horizontal member 41 is placed on the upper surface of the column 31, these are arranged in a T shape, and the beam 51 protrudes in a direction perpendicular to the horizontal member 41. The top surfaces of the horizontal member 41 and the beam 51 are the same height without a step, but the beam 51 is taller than the horizontal member 41. Therefore, the end surface of the beam 51 is in contact with both side surfaces of the column 31 and the horizontal member 41.

  The column 31 and the horizontal member 41 are fixed via a metal pipe 22. The pipe 22 is inserted through the pipe hole 32 extending in the axial direction from the upper surface of the column 31 and the pipe hole 42 connecting the upper and lower surfaces of the horizontal member 41, and the displacement between the column 31 and the horizontal member 41 is changed. regulate. Further, the side circumferential surface of the pipe 22 is provided with a lateral hole 23 penetrating to the opposite side, and the pipe 22 can be fixed to the column 31 or the horizontal member 41 by inserting a bolt 27 into this. In addition, in order to insert the bolt 27 into the pillar 31 or the horizontal member 41, the lower holes 35 and 45 aligned with the horizontal hole 23 are processed in advance.

  The beam 51 is fixed to the column 31 and the horizontal member 41 via the metal fitting 11. The metal fitting 11 has a U-shaped appearance including a rectangular front plate 12 extending in the vertical direction and a side plate 13 projecting at right angles from both side ends thereof, and a column 31 and a horizontal member through bolts 27. 41 is fixed. Further, a tenon 14 projecting in a cylindrical shape is provided on the upper side of the front plate 12, and a tenon hole 44 is machined in the side surface of the horizontal member 41 in order to fit this. Note that the bolt 27 for fixing the metal fitting 11 is inserted into the tenon 14. Therefore, a front hole 15 is provided at the center of the end face of the hoso 14 so that the shaft portion of the bolt 27 can be inserted.

  A tenon 14 is provided on the upper side of the front plate 12, but a window hole 18 is provided on the lower side. The window hole 18 is simply the front plate 12 cut out, and the hozocap 24 can be fitted therein. The hozo cap 24 is formed by pressing a metal plate and is used for exactly the same purpose as the hozo 14, but is characterized by being detachable from the metal fitting 11. Therefore, the hoso cap 24 has a cylindrical shape similar to that of the hoso 14 and has an end face on the side facing the column 31 closed, and a front hole 25 is provided at the center for inserting the shaft portion of the bolt 27. Note that a side hole of the column 31 is processed with a side hole 34 for fitting the side cap 24.

  A flange 26 is provided on the opposite side of the front hole 25 in both end faces of the hozo cap 24. The collar 26 protrudes to the outer peripheral side, and the outer peripheral surface has a tapered shape that tapers toward the column 31 side. The inner peripheral surface of the window hole 18 is also tapered so as to be able to come into full contact with the outer peripheral surface of the flange 26. Therefore, the brim 26 is received by the window hole 18 and the hozo cap 24 does not fall off to the column 31 side. In addition, after inserting the tenon cap 24 into the window hole 18, the tenon 14 and the tenon cap 24 having the same shape are arranged vertically as shown in the lower right figure.

  Bolts 27 for fixing the metal fitting 11 are inserted into the upper tenon 14 on the upper side of the front plate 12 and the tenon cap 24 protruding from the window hole 18. Therefore, the lower holes 35 and 45 for inserting the shaft portions of the bolts 27 are processed in the depths of the side holes 34 and 44 of the column 31 and the horizontal member 41. At the time of construction, after fitting the tenon cap 24 and the tenon 14 into the tenon holes 34, 44, a bolt 27 is inserted from between the two side plates 13, and a nut 28 is screwed to the tip to tighten it up. Is attracted to the column 31 and the horizontal member 41. Note that countersunk holes 36 and 46 are processed in the side surfaces of the pillar 31 and the horizontal member 41 in order to embed the nut 28, and a washer 29 is incorporated in order to prevent the nut 28 from sinking.

  The bolt 27 passes through the horizontal hole 23 of the pipe 22 on the way. Therefore, when the bolt 27 is tightened, the pipe 22 cannot be pulled out or rotated, and the column 31 and the horizontal member 41 are connected. The position and size of the side holes 34, 44 and the lower holes 35, 45 to be processed into the pillar 31 and the horizontal member 41 are determined according to the shape of the metal fitting 11, the pipe 22, and the like.

  The method of fixing the beam 51 to the metal fitting 11 is not different from the conventional method. Two rows of slits 53 are processed at the end of the beam 51 in order to insert the two side plates 13, and a step 52 is processed at the center of the end surface of the beam 51 in order to embed the front plate 12. It is. Further, the beam 51 and the metal fitting 11 are fixed via a drift pin 57. Therefore, the side plate 17 is provided with three rows of upper and lower side holes 17 in order to insert the drift pins 57 in the side plate 13, and side grooves 16 are provided on the side plates 13 to receive the drift pins 57. And the pin hole 54 which is concentric with the side hole 17 and the side groove | channel 16 is processed into the side surface of the beam 51 up and down four rows.

  Both side plates 13 have the same shape, and the side holes 17 and the side grooves 16 are concentrically aligned. The pin hole 54 crosses the two rows of slits 53 and reaches the opposite surface, and the drift pin 57 can be held immovable only by friction. In addition, at the time of construction, the beam 51 can be temporarily placed on the metal fitting 11 by driving the drift pin 57 into only the pin hole 54 in advance and receiving it with the side groove 16.

  The connector according to the present invention can be used universally in various tree structures. Therefore, a member (in this figure, the column 31 and the horizontal member 41) in contact with the surface side of the front plate 12 of the metal fitting 11 is referred to as a main material, and a member into which the side plate 13 of the metal fitting 11 is inserted (in this figure, the beam 51). ) Shall be called branch materials. It is necessary to process at least one relief hole in order to fit the relief cap 24 into the main material.

  FIG. 2 shows a process of fixing the metal fitting 11 of FIG. 1 to the horizontal member 41. When connecting the column 31, the horizontal member 41, and the beam 51 of FIG. 1, first, the pipe 22 and the metal fitting 11 are fixed to the horizontal member 41 as shown in this figure. The horizontal member 41 is drawn in a state of being cut at the center of the pipe hole 42. The tenon 14 of the metal fitting 11 is fitted into the tenon hole 44 machined on the side surface of the horizontal member 41, the pipe 22 is inserted into the pipe hole 42, and the upper horizontal hole 23 is aligned with the lower hole 45. Next, a bolt 27 is inserted from between the two side plates 13 toward the front hole 15 at the center of the side wall 14, and the tip of the bolt 27 reaches the counterbore hole 46 from the lateral hole 23. After that, when a washer 29 is assembled at the tip of the bolt 27 and the nut 28 is further screwed and tightened, the metal fitting 11 is fixed in close contact with the side surface of the horizontal member 41, and the pipe 22 is also fixed to the horizontal member 41. The

  When the pipe 22 and the metal fitting 11 are fixed to the horizontal member 41, the pipe 22 protrudes from the lower surface of the horizontal member 41 and the lower half of the metal member 11 also protrudes from the lower surface of the horizontal member 41. However, nothing is fitted in the window hole 18 in consideration of the later work. As shown in this figure, the work of fixing the pipe 22 and the metal fitting 11 to the horizontal member 41 is not necessary on site, and can be performed in the factory immediately after the horizontal member 41 is produced. The work on site can be reduced by that much, and the effect of shortening time can be obtained.

  FIG. 3 shows a process in which the horizontal member 41 of FIG. 2 to which the pipe 22 and the metal fitting 11 are fixed is transported to the site and the column 31 and the horizontal member 41 are connected. The column 31 and the horizontal member 41 are drawn in a state of being cut at the center of the pipe hole 32 and the pipe hole 42. After the column 31 is installed on the foundation or the like and upright, the horizontal member 41 is lifted, and the pipe 22 protruding from the lower surface of the horizontal member 41 is inserted into the pipe hole 32 on the upper surface of the column 31. At that time, the front plate 12 of the metal fitting 11 moves so as to slide along the side surface of the column 31. When the lower surface of the horizontal member 41 comes into contact with the upper surface of the column 31, the side hole 34 and the lower hole 35 of the column 31 are aligned with the window hole 18 of the metal fitting 11 and the horizontal hole 23 of the pipe 22. Therefore, when the tenon cap 24 is fitted into the window hole 18 from between the two side plates 13, the front part is fitted into the tenon hole 34.

  FIG. 4 shows the final process of connecting the beams 51 after FIG. When the bolt 27 is inserted into the center of the hozo cap 24 and the nut 28 is screwed to the tip thereof and tightened, the metal fitting 11 is fixed to the column 31 and the horizontal member 41 with the two upper and lower bolts 27. The bolt 27 also penetrates the pipe 22, and the column 31 and the horizontal member 41 are connected via the pipe 22.

  After the connection between the column 31 and the horizontal member 41 is completed, the end of the beam 51 is brought close to the metal fitting 11 and the side plate 13 is inserted into the slit 53. A drift pin 57 is driven in advance at the top of the four rows of pin holes 54 arranged on the side surface of the beam 51, and the beam 51 is temporarily attached to the bracket 11 by dropping it into the side groove 16 of the bracket 11. Placed. Thereafter, when the drift pin 57 is driven into the remaining pin hole 54, the connection of the column 31, the horizontal member 41, and the beam 51 is completed as shown in the lower figure.

  FIG. 5 is a longitudinal section showing an example of the shape of the hozocap 24 in addition to the longitudinal section of FIG. 4. The pipe 22 is inserted so as to penetrate the column 31 and the horizontal member 41, and the bolt 27 is inserted into the side peripheral surface of the pipe 22, and the column 31 and the horizontal member 41 are interposed via the pipe 22. Are connected. A tenon cap 24 is fitted into the metal fitting 11. The upper tenon 14 on the upper side of the metal fitting 11 is fitted into the tenon hole 44 of the horizontal member 41, and the tenon cap 24 is fitted into the tenon hole 34 of the column 31.

  Bolts 27 are inserted into the hoses 14 and the hoso caps 24, and nuts 28 are screwed into the bolts 27 to draw the metal fittings 11 to the columns 31 and the horizontal members 41. The beam 51 is fixed to the metal fitting 11 via the drift pin 57. Note that a stepped portion 52 is processed in the end face of the beam 51 in order to embed the front plate 12, and the end face of the beam 51 is in contact with the side surface of the column 31 and the horizontal member 41 only outside. In addition, the heads of the bolts 27 are accommodated inside the tenon 14 and the tenon cap 24 and do not interfere with the beam 51.

  If the hozo cap 24 can be fitted into the window hole 18, the detailed shape can be determined freely, and the outer peripheral surface of the flange 26 is tapered as shown in the lower left “hozo cap shape example 1”. The inner peripheral surface of 18 is also often tapered. This is to prevent interference with the beam 51 by preventing the hoso cap 24 from projecting to the back side of the front plate 12 when the hoso cap 24 is fitted into the window hole 18. If there is a manufacturing convenience or the like, a flange-shaped flange 26 may be provided on the end face, as in “Hozocap shape example 2” in the lower right. However, when fitted into the window hole 18, the flange 26 protrudes on the back side of the front plate 12.

  FIG. 6 shows a connector having a shape different from that in FIG. This connector has a structure in which two tenon caps 24 are fitted in order to improve strength, and the front plate 12 of the metal fitting 11 is provided with two window holes 18 at the top and bottom. In addition, two tenons 14 are provided at the top and bottom. The pipe 22 is also elongated according to the metal fitting 11, and four rows of horizontal holes 23 are provided. Furthermore, the side holes 34 and 44 processed into the pillar 31 and the horizontal member 41 are also arranged in two rows vertically. As described above, in the connector according to the present invention, if at least one fountain cap 24 is used, other elements can be freely determined. The front plate 12 is not provided with any fountain 14, and only the window hole 18 is provided. It doesn't matter.

  FIG. 7 shows an example of the shape of the connector according to claim 2, and the shaft rod 21 protrudes from one end of the hozo cap 20. The hozo cap 24 shown in FIG. 1 and the like is separately fixed to the main material 31 using bolts 27. The hozo cap 20 includes a large-diameter portion that functions as a hozo, a small-diameter shaft 21 that extends from the tip, A male screw is formed on the side peripheral surface of the shaft rod 21 and has a function as a bolt. Further, a flange 26 and a hexagonal hole 19 are formed on the end face of the tenon cap 20. The flange 26 is used to prevent the flange 26 from falling off the window hole 18, and the hexagonal hole 19 is used when the nut 28 is screwed. In addition, the metal fitting 10 has the same shape as the metal fitting 11 shown in FIG.

  FIG. 8 shows a process of connecting three members with the connector of FIG. After fixing the pipe 22 and the metal fitting 10 to the horizontal member 41 in the same manner as in FIG. 2, the pipe 22 is inserted into the column 31, the horizontal member 41 is placed on the upper surface of the column 31, and then the window hole 18. Insert the tenon cap 20 into When the tenon cap 20 is fitted into the tenon hole 34, the shaft bar 21 is inserted into the lower hole 35, passes through the horizontal hole 23 of the pipe 22, and reaches the counterbore hole 36. Further, when the nut 28 is screwed onto the shaft 21 and tightened, the metal fitting 10 is drawn to the column 31 via the hozo cap 20.

DESCRIPTION OF SYMBOLS 10 Metal fitting 11 Metal fitting 12 Front plate 13 Side plate 14 Hozo 15 Front hole 16 Side groove 17 Side hole 18 Window hole 19 Hexagonal hole 20 Hozo cap 21 Axle 22 Pipe 23 Horizontal hole 24 Hozo cap 25 Front hole 26 Bolt 28 Nut 29 Washer 31 Pillar (main material)
32 Pipe hole 34 Side hole 35 Lower hole 36 Counterbore hole 41 Horizontal material (main material)
42 Pipe hole 44 Side hole 45 Lower hole 46 Counterbore hole 51 Beam (branch material)
52 Stepped portion 53 Slit 54 Pin hole 57 Drift pin

Claims (3)

Used to connect branch materials (51) such as beams to main materials (31, 41) such as columns and horizontal members,
A front plate (12) that contacts the side surface of the main material (31, 41), and a slit (53) that protrudes from both ends of the front plate (12) and is provided at the end of the branch member (51). A side plate (13), and a U-shaped fitting (11) comprising:
A tenon cap (24) that fits into a tenon hole (34) provided in the main material (31);
With
The metal fitting (11) is fixed to the main material (31, 41) with a bolt (27), and is fixed to the branch material (51) with a drift pin (57),
The front plate (12) is provided with a window hole (18) for fitting the tenon cap (24),
A front hole (25) through which the shaft portion of the bolt (27) is inserted is provided on an end face of the hoso cap (24) on the main material (31, 41) side, and the window hole is provided on the other end face. (18) A coupling tool characterized in that it is provided with a collar (26) for preventing it from slipping out. Used to connect branch materials (51) such as beams to main materials (31, 41) such as columns and horizontal members,
A front plate (12) that contacts the side surface of the main material (31, 41), and a slit (53) that protrudes from both ends of the front plate (12) and is provided at the end of the branch member (51). A side plate (13), and a U-shaped fitting (10) comprising:
A tenon cap (20) that fits into a tenon hole (34) provided in the main material (31);
With
The metal fitting (10) is fixed to the branch member (51) with a drift pin (57) or the like,
The front plate (12) is provided with a window hole (18) for fitting the tenon cap (20),
A flange (26) is provided on the end face of the hozo cap (20) on the branch material (51) side to prevent the louver cap (20) from coming out of the window hole (18).
On the main material (31, 41) side of the tenon cap (20), a shaft bar is inserted into a lower hole (35) provided at the tip of the tenon hole (34) and a male screw is formed on the side peripheral surface. (21) protrudes, and the metal fitting (10) can be drawn to the main material (31, 41) by screwing a nut (28) onto the shaft rod (21). Coupling tool. The outer peripheral surface of the flange (26) has a tapered shape that tapers toward the main material (31, 41) side, and the inner peripheral surface of the window hole (18) The connector according to claim 1, wherein the connector has a tapered shape capable of surface contact with the outer peripheral surface.

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