JP2017186785A - Connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of members excellent in aesthetic appearance, and improved in strength against a vertical load, by burying substantially the whole hardware in the members, in various wooden structures.SOLUTION: A connection structure uses a connection pipe 11 buried in an end groove 74 of another material 71 in a form of bringing an end surface of the other material 71 into contact with one material 61, an auxiliary plate 31 incorporated into a storage groove 64 of the one material 61, and a drawing tool 28 and a hooking tool 48 for drawing near the connection pipe 11 to the one material 61. The connection pipe 11 is arranged so as to straddle the one material 61 and the other material 71, and is brought into contact with the auxiliary plate 31 as well as fixed to the other material 71, and the connection pipe 11 is also drawn near to the one material 61 by the drawing tool 28 and the hooking tool 48. The storage groove 64 and the end groove 74 are made not to reach undersurfaces of the one material 61 and the other material 71, so that an aesthetic appearance is improved. A jaw part 16 is also provided in the connection pipe 11, and a receiving groove 36 for receiving this is provided on the auxiliary plate 31, and thereby a vertical load is smoothly transmitted and strength is improved.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connection structure used for installing a rod-shaped member in various wooden structures.

  The wooden structure that is the skeleton of a wooden building is a structure in which rod-shaped members such as pillars and horizontal members are connected to each other, and the connection location between the members is extremely important in securing the strength of the wooden structure. For this reason, a fitting technique called a joint has been introduced for a long time. However, the joint has a problem that the processing of the member becomes complicated and the cross-sectional defect of the member also increases. Therefore, in recent years, members are often connected using various hardware.

  Regarding the connection between members, various techniques have been proposed for some time, examples of which are shown in the following patent documents. Patent Document 1 discloses a shaft assembling method using a fitting for connection as an alternative to a joint or joint. A hole is formed in wood, a bolt is embedded therein, and the bolt is fixed to the wood with a caulking material. doing. Further, the connecting metal fitting is arranged at the boundary between the pieces of wood to be connected, and a bolt protruding from the wood is inserted into the connecting metal fitting. Then, when a nut is screwed onto the tip of the bolt and tightened, a plurality of pieces of wood are integrated through the connecting metal fitting.

  Patent Document 2 discloses a connection structure between members that can embed almost the whole hardware in a member and is excellent in aesthetics. This connecting structure uses a rectangular tube-like connecting tube as in the above-mentioned Patent Document 1, and an upright groove is processed so as to straddle the contact surface between members, and the connecting tube is fitted therein. And bolts etc. are inserted from the inside of a connecting pipe, and each member is drawn near to a connecting pipe. In order to cover the connecting pipe, the upright groove does not reach the lower surface of the member and is broken by the trouble, and no hardware is exposed to the indoor side. In addition, concealing hardware makes it difficult for condensation to occur, and can suppress weakening due to heat during a fire.

JP-A-52-56714 JP 2015-110881 A

  As a result of introducing the connection structure according to Patent Document 2 to an actual wooden building, it was possible to cover the hardware and obtain the effect that was initially assumed. However, in this connection structure, the bolt is mainly responsible for the transmission of vertical load, and when the member has a large cross section, the shear load acting on the shaft of the bolt also increases, and it has been found that there is not enough room for strength. . Therefore, there is a demand for a technology that can withstand a larger vertical load while taking over the advantages of the connection structure disclosed in Patent Document 2.

  The present invention was developed on the basis of such a situation, and in various wooden structures, almost all hardware is embedded in a member, which is excellent in aesthetics and the like, and a connection structure between members with improved strength against vertical load The purpose is to provide.

  The invention according to claim 1 for solving the above-mentioned problem is a connection structure of one material and the other material, wherein the other material is rod-shaped and one end surface thereof is in contact with the one material. A rectangular tube-shaped connecting pipe that is embedded so as to straddle the contact surface of the other material, an auxiliary plate that contacts one side surface of the connecting pipe, and a tool and a hook for drawing the connecting pipe to the one material And the connecting pipe is embedded in a vertically extending end groove provided on the end face of the other material and fixed to the other material with a bolt or a screw nail, and a part of the connecting pipe is The one material is provided with a storage groove having the same cross-sectional shape as the end groove, the auxiliary plate is disposed on the back surface of the storage groove, and the side surfaces of the auxiliary plate and the connecting pipe are aligned with each other. And the end surface of the other material contacts the one material, and the storage groove and the end groove are Without reaching the lower surface of the material or the other material, it is interrupted in front of it, the connecting pipe and the auxiliary plate are covered with the one material and the other material except for the upper part, Passes through the passage hole provided in the auxiliary plate, one end is fixed to the one member, the other end is protruded from the auxiliary plate, and a lower groove for inserting the hook is provided in the lower part of the connecting pipe. In order to transmit a vertical load between the connecting pipe and the auxiliary plate, an upper portion of the side surface of the connecting pipe is provided with an jaw portion protruding toward the one material side, and the auxiliary plate is provided with the jaw portion. The connecting structure is characterized in that a receiving groove is provided for receiving, and the jaw portion is formed with a closing hole for passing the closing tool.

  The present invention is for connecting members in various wooden structures used for wooden constructions, etc., and for convenience, among members connected, the one closer to the foundation is referred to as one material. The one that is supported imaginarily is called the other material. Also, it is assumed that the one material and the other material are in direct surface contact with each other. However, the arrangement of the members is free. When connecting the side surface of one material and the end surface of the other material and connecting them in a letter shape or L shape, or connecting both end surfaces in a straight line There is also. Further, there may be a case where two other materials are used, the end surfaces of the other material are brought into contact with both side surfaces of the one material, and connected in a cross shape.

  The other material is a rod-shaped member, which is arranged in the horizontal or oblique direction, and assumes that one end surface thereof is in contact with one material. On the other hand, the one material may be an upright member such as a pillar. Further, the one material may be a plate material in addition to the rod-shaped member, and an upright plate material may be the one material, and the end surface of the other material may be supported by the side surface. In addition, it is assumed that one material and the other material are wood, and various laminated materials are often used.

  The connecting pipe is a component that substantially bears the connection between the one material and the other material, and is used in a posture in which a square steel pipe cut to a predetermined length is upright. In the present invention, it is necessary to insert bolts and the like into the connecting pipe and tighten them further, and the connecting pipe needs to have a certain size. In addition, “a rectangular tube-shaped connecting pipe embedded so as to straddle the contact surface between one material and the other material” means that the connecting pipe is arranged at the boundary between the one material and the other material, and the connecting pipe is connected to the one material and the other material. It means that you are in both.

  The auxiliary plate is a metal plate that is in contact with one side surface of the connecting pipe, and has the same size as the one side surface of the connecting pipe. The auxiliary plate is incorporated so as to be in contact with one material, and plays a role of receiving a vertical load (downward load) acting on the other material. For this reason, the connecting pipe and the auxiliary plate need not only have both side surfaces in contact with each other but also have a function of transmitting a vertical load. In order to achieve this, the connecting pipe is provided with an jaw portion, and the auxiliary plate has a receiving groove. Is provided.

  The jaw portion is a protrusion provided at the upper center of one side surface of the connecting pipe. The receiving groove is a notch provided in the upper center of the auxiliary plate, and the jaw portion is fitted therein. When the jaw portion is fitted into the receiving groove, the bottom portion of the jaw portion is received by the receiving groove, and a downward load acting on the connecting pipe is transmitted to the auxiliary plate. The receiving groove is open upward. Therefore, when the connecting pipe and the auxiliary plate are brought into contact with each other, the lower part of the connecting pipe is first brought into contact with the upper part of the auxiliary plate, and then the connecting pipe is slid downward so that the jaw portion is fitted into the receiving groove.

  The end groove is a groove that is processed into the end surface of the other material in order to embed the connecting pipe. The end groove extends in the vertical direction of the end surface, but does not reach the lower surface of the other material and is interrupted in front of it. The width of the end groove is such that the connecting pipe can be fitted without looseness, and the end groove is not exposed on the side surface of the other material. The height of the connecting pipe is smaller than the depth of the end groove so that the upper part of the connecting pipe does not protrude from the other material. However, the depth of the end groove is made smaller than the distance between the two opposing side surfaces of the connecting pipe (two side faces aligned in parallel with the end face of the other material), and a part of the connecting pipe protrudes from the end face of the other material. .

  The connecting pipe fitted in the end groove is fixed to the other material using various conventional techniques. Specific examples thereof include a method using a lag screw having a female thread formed on one end face or a deformed steel bar. Lag screw and deformed bar steel are embedded in a pilot hole machined in the inner surface of the end groove, and when a bolt is inserted from the inside of the connecting pipe toward them, the connecting pipe is fixed to the other material via the lag screw or deformed bar steel. Is done. Moreover, a screw nail can be inserted from the inside of a connection pipe toward the other material, and a connection pipe can also be fixed.

  The storage groove is a groove that is processed into one material, and an auxiliary plate is incorporated in the inner surface of the storage groove, and a connecting pipe enters in the vicinity of the entrance. Therefore, the storage groove is aligned with the end groove of the other material so that the connecting pipe is fitted without looseness. In addition, the storage groove, like the end groove, does not reach the lower surface of the one material and is interrupted in front of it. Then, the lower surface of the auxiliary plate is brought into contact with the bottom surface of the storage groove, and a downward load acting on the auxiliary plate is transmitted to one material through this surface. The auxiliary plate may be incorporated in the inner surface of the storage groove, and may not be fixed to one material.

  After the auxiliary plate is incorporated into one material and the connecting pipe is fixed to the other material, the connecting tube protruding from the end face of the other material is fitted into the storage groove of the one material, and the side surfaces of the auxiliary plate and the connecting tube are brought into contact with each other and connected. By fitting the jaw portion of the tube into the receiving groove of the auxiliary plate, the downward load acting on the other material is transmitted to the one material via the jaw portion and the receiving groove. Since the lower surface of the connecting pipe is placed on the bottom surface of the storage groove of one material, the downward load acting on the other material is transmitted here as well.

  When the auxiliary plate and the connecting pipe are in contact, the depth of both the storage groove and the end groove is adjusted so that the end surface of the other material (the region outside the end groove) is in contact with the one material. As a result, the auxiliary plate and the connecting pipe are covered and concealed inside the one material or the other material, and no hardware is exposed on the lower surface or side surface of the one material or the other material. However, the storage groove and the end groove are exposed on the upper surface, and the auxiliary plate and the connecting pipe in the groove are also exposed. Therefore, a plate material is separately placed on the upper surface to cover them.

  Both the gathering tool and the hanging tool are used for pulling the connecting pipe to one member, but the gathering tool is incorporated in the upper part of the connecting pipe, and the hanging tool is incorporated in the lower part of the connecting pipe. The closer is a bolt or a screw nail that is inserted from the inside of the connecting pipe toward the one member, and reaches the one member through a close hole provided in the jaw portion of the connecting tube. In addition, a lag screw etc. may be embedded in one material so that the front part of a gathering tool can be screwed together. Further, the auxiliary tool is inserted in the final stage of connecting the one material and the other material after the auxiliary plate is incorporated in the one material and the connecting pipe is fixed to the other material.

  The hanging tool is a bolt or a screw nail incorporated in the lower part of the connecting pipe. One end of the hook is fixed to one material, while the other end protrudes outward from the auxiliary plate and enters the inside of the connecting pipe. Therefore, when the hanging tool is a bolt, a lag screw or the like that is screwed with the one member is embedded in the one material. In addition, a passage hole is provided in the lower portion of the auxiliary plate so as to pass the shaft portion of the hanging tool, and a lower groove is provided in the lower portion of the connecting pipe for passing the shaft portion of the hanging tool. The lower groove is a V-shaped notch extending upward from the lower surface of the connecting pipe.

  On the other hand, after the auxiliary plate is assembled in the material storage groove, when the hanging tool is attached, a clearance enough to allow the connecting pipe to enter is ensured without bringing the head of the hanging tool into contact with the auxiliary plate. Next, the other material to which the connecting pipe is fixed is brought closer, the shaft portion of the hanging tool is inserted into the lower groove of the connecting pipe, and the head portion of the hanging tool enters the inside of the connecting pipe. Thereby, the lower part of a connection pipe is drawn near to one material via a hanging tool. In addition, a part of connecting pipe protrudes from the end surface of the other material, and the lower surface of the connecting pipe is exposed. Therefore, such a procedure can be performed.

  In this way, by using the connecting pipe and the auxiliary plate, the downward load acting on the other material is reliably transmitted to the auxiliary plate via the connecting pipe by fitting the jaw portion of the connecting pipe into the receiving groove of the auxiliary plate. Thus, the strength against vertical load is improved. Further, the storage groove and the end groove in which the auxiliary plate and the connecting pipe are arranged are interrupted before reaching the lower surface of the one material or the other material. Therefore, various kinds of hardware such as auxiliary plates and connecting pipes are exposed only above the storage grooves and end grooves, and no hardware is exposed on the lower surface and side surfaces of one material and the other material.

  As in the first aspect of the present invention, a storage groove is provided in one material, an end groove is provided in the other material, an auxiliary plate is incorporated in the back surface of the storage groove, a connecting pipe is fixed to the back surface of the end groove, In the connecting structure in which the connecting pipe is pulled to one material by the tool and the hook, the upper part of the side surface of the connecting pipe is provided with an jaw part, and the auxiliary plate is provided with a receiving groove into which the jaw part is fitted. Transmission of vertical load is realized between the two. Therefore, compared to the case where only the connecting pipe is used, it can withstand a larger vertical load, and even a member with severe load conditions can be connected, and a member having a larger cross section than the conventional one is used as one material or the other material. be able to.

  In addition, the storage groove and the end groove do not reach the lower surface of the one material or the other material, but are interrupted before the auxiliary material, and the auxiliary plate and the connecting pipe are covered with the one material or the other material. Therefore, no hardware is exposed on the lower surface or side surface of the one material or the other material, and a natural atmosphere of wood is created indoors.

It is a perspective view which shows the specific example of the connection structure by this invention, the end surface of the other material is made to contact the side surface of one material, and both materials are connected in a letter shape. It is a perspective view which shows the state which fixed the connecting pipe to the other material of FIG. 1, and the state which incorporated the auxiliary | assistant board in one material. It is a perspective view which shows the state just before connecting the other material to one material after FIG. It is the perspective view and longitudinal cross-sectional view which show the state with which the one material of FIG. 1 and the other material were connected. It is a perspective view which shows the cross-shaped connection structure which pulled the other material to the both sides | surfaces of one material. It is a perspective view which shows the state which connected the one material and other material of FIG. In the perspective view which shows the example of the form of the connection structure by this invention, the end surfaces of one material and the other material are made to contact and connect in a straight line, and the deformed steel bar is embedded in one material or the other material. In the perspective view which shows the form example of the connection structure by this invention, the end surface of the other material is made to contact the side surface of one material standing upright, and the connection pipe and the auxiliary | assistant board are being fixed with the screw nail. It is a perspective view which shows the state which assembled the connection structure of FIG. 7 and FIG. The upper part of the figure is based on FIG. 7, and the lower part of the figure is based on FIG.

  FIG. 1 shows a specific example of a connection structure according to the present invention, in which an end surface of the other material 71 is brought into contact with a side surface of one material 61 and both materials are connected in a letter shape. Both the one material 61 and the other material 71 are horizontally extending wood, and in order to connect them, the connecting pipe 11 is fixed to the other material 71, the auxiliary plate 31 is incorporated in the one material 61, and the connecting pipe is further connected. In order to draw 11 to the one material 61, a gathering tool 28 and a hanging tool 48 are used. In addition, the one material 61 and the other material 71 of FIG. 1 are equal in height, and the upper and lower surfaces of both are aligned without any step. Moreover, the one material 61 and the other material 71 may use various laminated materials other than a solid material.

  The connecting pipe 11 is a general-purpose steel pipe cut out, and its lateral width is narrower than that of the other material 71. In order to embed the connecting tube 11, an end groove 74 is processed in the center of the end surface of the other material 71. The end groove 74 extends downward from the upper surface of the other material 71, but does not reach the lower surface of the other material 71 and is interrupted in front of it. The lateral width of the end groove 74 is large enough to fit the connecting pipe 11 without a gap, and the depth (vertical direction) of the end groove 74 is larger than the height of the connecting pipe 11, and the connecting pipe 11 is connected to the other side. It does not protrude from the upper surface of the material 71. However, the depth of the end groove 74 is adjusted so that a part of the connecting pipe 11 protrudes from the end surface of the other material 71.

  In order to fix the connecting pipe 11 to the other material 71, a lag screw 51 is used in FIG. The lag screw 51 has a cylindrical shape made of metal, and a spiral protrusion 56 is formed on the side peripheral surface thereof, and a hexagonal head 55 is formed on one end surface thereof. A female screw 57 is formed at the center of the. Moreover, in order to embed the lag screw 51 in the inner surface of the end groove 74 of the other material 71, the lower hole 76 is processed, and the ridge 56 bites into the inner peripheral surface of the lower hole 76. It is fixed to the other material 71. In the figure, the lag screw 51 is embedded in the upper and lower portions of the end groove 74.

  In addition, in order to transmit a vertical load between the other material 71 and the connecting pipe 11, a round flange 54 is used. The round tenon 54 has a simple cylindrical shape, but has a head 55 and a female screw 57 formed on one end face thereof. The round tenon 54 is also embedded in a prepared hole 76 machined in the inner surface of the end groove 74. For the purpose, the prepared lower hole 76 has an inner diameter that holds the round tenon 54 without loosening. Two round hoses 54 are arranged between the upper and lower lag screws 51. In addition, both of the lag screw 51 and the round hozo 54 are entirely embedded in the prepared hole 76, and the side surface of the connecting pipe 11 is in contact with the inner surface of the end groove 74.

  In order to fix the connecting pipe 11 to the other material 71, the bolt 27 is inserted from the inside of the connecting pipe 11 toward the female screw 57 of the lag screw 51 or the round hozo 54. The bolt 27 that is screwed with the lag screw 51 is inserted from the upper and lower openings of the connecting pipe 11, but the bolt 27 that is screwed with the round flange 54 is a large hole 18 provided on the side surface of the connecting pipe 11 in consideration of workability. Plug in. In addition, a small hole 22 is provided in each side surface of the connecting pipe 11 in order to insert the shaft portion of the bolt 27 in the surface that contacts the head 55 of the lag screw 51 or the round hozo 54. Naturally, the small hole 22 and the large hole 18 are arranged concentrically with the lag screw 51 and the round flange 54.

  The auxiliary plate 31 is a simple metal plate, the height and width of which are aligned with that of the connecting pipe 11, and is incorporated in the inner surface of the storage groove 64 processed on the side surface of the one material 61 and is in contact with the side surface of the connecting pipe 11. The storage groove 64 has the same cross section as the end groove 74 of the other material 71. When the one material 61 and the other material 71 are brought into contact with each other, the two grooves face each other. The storage groove 64 is also interrupted without reaching the lower surface of the one material 61. In addition, a pilot hole 66 is machined in the inner surface of the storage groove 64, and the lag screw 51 is embedded in two places above and below, similarly to the other material 71. The lag screw 51 is the same as that on the other material 71 side, but the prepared hole 66 penetrates the one material 61.

  On the other hand, a pipe 41 is used to transmit a vertical load between the material 61 and the auxiliary plate 31. The pipe 41 has a simple cylindrical shape and is attached to the auxiliary plate 31 with a bolt 27. Therefore, the auxiliary plate 31 is provided with a female screw 37. Further, in order to embed the pipe 41, a bottomed bottom hole 66 is processed in the inner surface of the storage groove 64. The pilot hole 66 has an inner diameter that holds the pipe 41 without loosening in order to transmit a vertical load. Two pipes 41 are arranged between the upper and lower lag screws 51.

  In order to transmit a vertical load between the connecting pipe 11 and the auxiliary plate 31, a jaw part 16 that protrudes in the horizontal direction is provided at the upper center of the side surface of the connecting pipe 11, and the auxiliary plate 31 has a jaw part 16. A receiving groove 36 into which is fitted is provided. When the connecting pipe 11 and the auxiliary plate 31 come into contact with each other, the jaw portion 16 is fitted into the receiving groove 36 without a gap. Therefore, the downward load acting on the connecting pipe 11 is smoothly transmitted to the auxiliary plate 31 and is finally received by the one material 61 via the lower surface of the auxiliary plate 31 and the pipe 41.

  In order to draw the connecting pipe 11 to the one material 61, a gathering tool 28 is used. 1 is a normal bolt, and is inserted from the inside of the connecting pipe 11 toward the lag screw 51 (upper part) embedded in the one material 61. In order to insert the stopper 28, the jaw part 16 is provided with a stopper hole 21. In addition to the concentric hole 21 and the lag screw 51 being aligned concentrically, the end surface of the close hole 21 is in contact with the lag screw 51. Then, after the connecting pipe 11 is brought into contact with the auxiliary plate 31, the closing tool 28 is inserted from the inside of the connecting pipe 11, and when tightening is completed, the connecting pipe 11 is drawn toward the one member 61, and the auxiliary plate 31 is stored in the storage groove 64. Is sandwiched between the inner surface and the connecting tube 11.

  In order to draw the connecting tube 11 toward the one member 61, a hook 48 is used in addition to the hook 28. The hanging tool 48 is a bolt whose head is enlarged in diameter, and is inserted from the auxiliary plate 31 toward the one member 61. Therefore, a passage hole 39 through which the shaft portion of the hanging tool 48 passes is provided in the lower part of the auxiliary plate 31, and the tip of the hanging tool 48 is screwed into a lag screw 51 (a lower object) embedded in one material 61. To do. The hanging tool 48 secures a gap for the connecting pipe 11 to enter without bringing its head into contact with the auxiliary plate 31. In addition, a lower groove 19 is provided in the lower part of the connecting pipe 11 in order to insert the shaft part of the hanging tool 48. The lower groove 19 is cut into a V shape from the lower surface of the connecting pipe 11, and the shaft portion of the hanging tool 48 enters the back thereof.

  The penetrating pin 25 is used to improve the proof stress in addition to improving the positional accuracy between the one member 61 and the other member 71, and is driven from the side surface of the one member 61 toward the other member 71. 11 is penetrated. In order to drive the penetrating pin 25, a pin hole 65 penetrating both sides is processed on the side surface of the one material 61, and a pin hole 75 is processed concentrically on the other material 71. Further, the auxiliary plate 31 is provided with side holes 40, and the connecting pipe 11 is also provided with side holes 20 on two opposite side surfaces. The penetration pin 25 is driven after the connection of the one material 61 and the other material 71 is completed.

  The connection structure depicted in FIG. 1 is merely an example of the present invention, and whether or not the lag screw 51, the round hozo 54, and the pipe 41 are used, and the number and arrangement of the use depends on the required strength and the like. You can decide freely. The through pin 25 is also used as necessary. However, in addition to fixing the connecting pipe 11 to the other material 71, the auxiliary plate 31 is incorporated in the inner surface of the storage groove 64, and a vertical load is transmitted between the connecting pipe 11 and the auxiliary plate 31, and the auxiliary plate 31 and the connecting pipe 11 are connected. It is essential to cover with the end groove 74 and the storage groove 64.

  FIG. 2 shows a state in which the connecting pipe 11 is fixed to the other material 71 of FIG. 1 and a state in which the auxiliary plate 31 is incorporated into the one material 61. As for the other material 71 drawn in the upper part of FIG. 2, in addition to embedding the lag screw 51 at two places on the upper and lower sides of the end groove 74, two round hoses 54 are embedded so as to be sandwiched between them. In addition, the lag screw 51 adjusts the amount of embedding so that the one end surface is lined up with the back surface of the end groove 74 without a step.

  Next, the connecting pipe 11 is fitted into the end groove 74, and a part of the connecting pipe 11 protrudes from the end surface of the other material 71 in consideration of the depth of the end groove 74. Therefore, the bolt 27 can be inserted into the inside from the lower surface in addition to the upper surface of the connecting pipe 11. When the bolt 27 is inserted from the connecting pipe 11 toward the lag screw 51, the connecting pipe 11 is connected to the other via the lag screw 51. It is fixed to the material 71. Further, the bolt 27 is inserted from the large hole 18 of the connecting pipe 11 toward the round tenon 54, and the round tenon 54 is drawn to the connecting pipe 11 to transmit a vertical load.

  With respect to the one material 61 drawn in the lower part of FIG. 2, the lag screw 51 is embedded in two upper and lower prepared holes 66, and the pipes 41 are attached to the upper and lower portions of the auxiliary plate 31 using bolts 27. Next, the auxiliary plate 31 is assembled in the inner surface of the storage groove 64, and the pipe 41 is embedded in the prepared hole 66. At this stage, the auxiliary plate 31 is not fixed to the one material 61. Finally, the hook 48 is inserted into the passage hole 39 of the auxiliary plate 31 and the tip thereof is screwed into the lag screw 51 (the lower object). However, the hanging tool 48 is not completely tightened, but a clearance is secured between the head and the auxiliary plate 31 and the lower groove 19 of the connecting pipe 11 is inserted therein.

  FIG. 3 shows a state immediately after connecting the other material 71 to the one material 61 after FIG. 2. After the connecting pipe 11 is fixed to the other material 71 and the auxiliary plate 31 is assembled to the one material 61, the other material 71 is lifted, the position of the other material 71 is adjusted, and the storage groove 64 and the connecting tube 11 are moved up and down. Try to line up. Thereafter, when the other material 71 is gradually lowered, the side surfaces of the connecting pipe 11 and the auxiliary plate 31 come into contact with each other, and the shaft portion of the hanging tool 48 enters the lower groove 19 of the connecting pipe 11, and the other material 71. Is attracted to the one material 61. At the same time, the jaw portion 16 of the connecting pipe 11 is fitted into the receiving groove 36 of the auxiliary plate 31, and the weight of the other material 71 is received by the one material 61.

  FIG. 4 shows a state in which one material 61 and the other material 71 of FIG. 1 are connected. The end surface of the other material 71 (the region outside the end groove 74) is in contact with the side surface of the one material 61, and both materials are connected in a letter shape when viewed from above. Further, the auxiliary plate 31 and the connecting pipe 11 are embedded in the storage groove 64 and the end groove 74, and these are not exposed on the lower surface and side surfaces of the one material 61 and the other material 71, and are excellent in aesthetics. In addition, although the lag screw 51 and the penetration pin 25 are exposed to the opposite side of the other material 71 among the side surfaces of the one material 61, this surface is not an indoor side.

  In the lower part of FIG. 4, a longitudinal section of the connected one material 61 and the other material 71 is drawn. The connecting pipe 11 is fixed to the other material 71 by a lag screw 51 on the right side of the drawing, and two round hoses 54 are embedded between the upper and lower lag screws 51 in order to transmit a vertical load. . Further, in order to draw the connecting pipe 11 toward the one material 61, the tool 28 is inserted from the jaw portion 16 toward the lag screw 51 of the one material 61.

  The hanging tool 48 is inserted from the inside of the connecting pipe 11 toward the lag screw 51 of the one material 61, and draws the lower part of the connecting pipe 11 to the one material 61. The head of the hanging tool 48 is fixed so as to float from the auxiliary plate 31, and the connecting pipe 11 is inserted into the gap. In addition, as shown in previous FIG. 3, the other material 71 lifted is dropped at the time of connection. Therefore, the connecting pipe 11 is provided with a lower groove 19, and the periphery of the lower groove 19 is restrained by the head of the hanging tool 48 by inserting the shaft portion of the hanging tool 48 here. In addition, the penetration pin 25 penetrates the one material 61 and the other material 71 through the auxiliary plate 31 and the connecting pipe 11.

  The weight of the other material 71 is first transmitted to the connecting pipe 11 via the lag screw 51 and the round flange 54, and further transmitted to the auxiliary plate 31 via the jaw portion 16 and the receiving groove 36. A pipe 41 is attached to the auxiliary plate 31, and the lower surface of the auxiliary plate 31 is in contact with the bottom surface of the storage groove 64. Therefore, the vertical load acting on the auxiliary plate 31 is smoothly transmitted to the one member 61, and the load does not concentrate only on some parts.

  FIG. 5 shows a cross-shaped connection structure in which the other material 71 is drawn to both side surfaces of the one material 61. The present invention can be used in cases other than the case where the one member 61 and the other member 71 are connected in a letter shape. In this figure, the storage grooves 64 are processed on both side surfaces of the one member 61, and the individual storage grooves 64. In addition to the auxiliary plate 32 being mounted, a total of four rows of prepared holes 66 are processed so as to connect the opposing storage grooves 64, and the lag screws 52 are embedded in the upper and lower rows. The lag screw 52 has the entire length aligned with the extension of the pilot hole 66 and is provided with female screws 57 at both ends. The other material 71 is arranged so that two of the same shape face each other, and the connecting pipe 12 is fixed to the end groove 74 of the other material 71.

  In addition to being fixed to the other material 71 via two upper and lower lag screws 51, the connecting pipe 12 of FIG. 5 has two round hoses 54 embedded between them in order to transmit a vertical load. The side hole 20 is omitted because the penetrating pin 25 is not used. In addition, two pipes 41 are attached to each auxiliary plate 32 in the vertical direction. The pipe 41 is embedded in the prepared hole 66 of the one material 61 and bears transmission of a vertical load. In addition, a hanging tool 48 is incorporated under the auxiliary plate 32. The hanging tool 48 passes through the passage hole 39 of the auxiliary plate 32 and is screwed into the lag screw 52 of the one material 61.

  In FIG. 5, the height is different between the one material 61 and the other material 71, and the end of the other material 71 is structured to be embedded in the side surface of the one material 61. Therefore, an outer groove 67 for receiving the other material 71 is processed at the entrance of the storage groove 64, and the lower end surface of the other material 71 is placed on the bottom surface of the outer groove 67, and the strength against vertical load is further improved. The height of the outer groove 67 is equal to that of the other material 71, and the upper surfaces of the one material 61 and the other material 71 are arranged without any step.

  FIG. 6 shows a state where one material 61 and the other material 71 of FIG. 5 are connected. The one material 61 and the other material 71 are arranged in a cross shape, and the tool 28 is inserted into the upper part of the connecting pipe 12 and its tip is inserted into the lag screw 52 of the one material 61 and tightened with a hex wrench or the like. The material 71 is attracted to the one material 61. In addition, the other material 71 is pulled by the hanging tool 48 at the lower part of the connecting pipe 12. In addition, the end portion of the other material 71 is fitted into the outer groove 67 of the one material 61, and the lower surface of the other material 71 has a step with respect to the one material 61.

  FIG. 7 shows an example of a connection structure according to the present invention, in which the end faces of the one material 61 and the other material 71 are brought into contact with each other and connected in a straight line, and the deformed steel bar 53 is embedded in the one material 61 or the other material 71. . The deformed steel bar 53 is formed by forming a plurality of ribs 58 on the side peripheral surface, and is provided with a female screw 57 on one end surface thereof, embedded in prepared holes 66 and 76 processed into one material 61 and the other material 71, and bonded. Fix with agent 59. In FIG. 7, a total of three deformed steel bars 53 are embedded in the other material 71 in order to fix the connecting pipe 13. Further, only one round tenon 54 is embedded between the upper and lower deformed steel bars 53.

  The jaw portion 16 of the connecting pipe 13 is provided with two close holes 21 at the upper and lower portions, and the close tool 28 is inserted into each. Therefore, two deformed steel bars 53 are embedded in the upper portion of the one material 61. In addition, one deformed steel bar 53 is embedded in the lower portion of the one member 61 in order to screw the hanging tool 48. In addition, one pipe 41 is attached to the auxiliary plate 33. A total of four rows of pilot holes 66 are machined up and down in the back surface of the storage groove 64 of the one material 61 in order to embed the deformed steel bar 53 and the pipe 41.

  As shown in FIG. 7, various conventional techniques can be used as a method of fixing the connecting pipe 13, and the number and arrangement thereof are adjusted according to the required strength. Further, the number of the abutting tools 28 is adjusted according to the tensile load, and accordingly, the shape of the jaw portion 16 and the receiving groove 36 also changes. In addition, the one material 61 and the other material 71 can be arranged freely, and can be connected in a straight line as shown in this figure, and is not limited to a letter shape or an L shape.

  FIG. 8 shows an example of a connection structure according to the present invention. In addition to bringing the end surface of the other material 71 into contact with the side surface of the upright one material 61, the connection tube 14 and the auxiliary plate 34 are fixed with screw nails 26. One material 61 in this figure is an upright column, the end surface of the other material 71 is brought into contact with its side surface, and both materials are connected in an L shape when viewed from the side. 8 is fixed with a plurality of screw nails 26, a plurality of large holes 18 and small holes 22 are provided on the side surface of the connection tube 14. The large hole 18 is sized to allow the head of the screw nail 26 to pass therethrough, and the small hole 22 is sized to allow only the shaft portion of the screw nail 26 to pass through. The large hole 18 and the small hole 22 are connected to the connecting pipe 14. It is arranged on the opposite side.

  The auxiliary plate 34 in FIG. 8 is fixed to the one material 61 with the screw nails 26. Therefore, the auxiliary plate 34 is provided with a plurality of nail holes 46. The head of the screw nail 26 inserted into the nail hole 46 is accommodated in a counterbore 38 provided at the entrance of the nail hole 46, and the side surfaces of the connecting tube 14 and the auxiliary plate 34 come into contact with each other without difficulty. The counterbore 38 can be omitted, and the head of the screw nail 26 can be accommodated in the large hole 18 of the connecting pipe 14. In addition, in FIG. 8, the lower surface of the auxiliary plate 34 is brought into contact with the bottom surface of the storage groove 64, and the downward load acting on the auxiliary plate 34 is transmitted to the one member 61 from here as well. However, a downward load may be transmitted only by the screw nails 26 without contacting the lower surface of the auxiliary plate 34.

  A screw nail is used here as the approaching tool 29 for pulling the connecting tube 14 toward the one member 61. The approaching tool 29 reaches the one member 61 through the approaching hole 21 of the jaw part 16, but considering the workability, the approaching hole 21 is inclined, and the approaching tool 29 extends from the upper part of the connecting pipe 14. Insert it diagonally downward. In FIG. 8, in order to ensure strength, the abutment holes 21 are arranged in two upper and lower rows and two abutment tools 29 are used.

  As for the hanging tool 49, a screw nail is used here. The hanging tool 49 is inserted into the one member 61 through the passage hole 39 of the auxiliary plate 34, but the head portion secures a gap without contacting the auxiliary plate 34 and sandwiches the connecting tube 14 there. Note that the passage hole 39 is only at one central portion of the lower portion of the auxiliary plate 34 and the rest are all nail holes 46. Unlike the nail hole 46, the counterbore 38 is not provided for the passage hole 39.

  FIG. 9 shows a state where the connection structure of FIGS. 7 and 8 is assembled. 9 is based on FIG. 7, and the lower part of FIG. 9 is based on FIG. As shown in this figure, the present invention is characterized in that the connecting members 13 and 14 and the auxiliary plates 33 and 34 are used to connect the one member 61 and the other member 71. The arrangement of the one member 61 and the other member 71 is as follows. It is free. Moreover, the fixing method of the connection pipes 13 and 14 can also be freely determined according to various conditions.

DESCRIPTION OF SYMBOLS 11 Connection pipe 12 Connection pipe 13 Connection pipe 14 Connection pipe 16 Jaw part 18 Large hole 19 Lower groove 20 Side hole 21 Side hole 22 Small hole 25 Through pin 26 Screw nail 27 Bolt 28 Head (bolt)
29 Alignment tool (screw nails)
31 Auxiliary plate 32 Auxiliary plate 33 Auxiliary plate 34 Auxiliary plate 36 Receiving groove 37 Female screw (provided on the auxiliary plate)
38 counterbore 39 passage hole 40 side hole 41 pipe 46 nail hole 48 hook (bolt)
49 Hang (screw nails)
51 Lag screw (with female thread only on the head side)
52 lag screw (with female thread at both ends)
53 Deformed Bar 54 Round Hojo 55 Head 56 Projection 57 Female Thread 58 Rib 59 Adhesive 61 One Material 64 Storage Groove 65 Pin Hole 66 Pilot Hole 67 Outer Groove 71 Other Material 74 End Groove 75 Pin Hole 76 Pilot Hole

Claims (1)

It is a connection structure of one material (61) and the other material (71), and the other material (71) is rod-shaped, and its one end surface is in contact with the one material (61),
A rectangular tube-shaped connecting pipe (11 to 14) embedded so as to straddle the contact surface between the one material (61) and the other material (71);
An auxiliary plate (31 to 34) in contact with one side surface of the connecting pipe (11 to 14);
A gathering tool (28 or 29) and a hanging tool (48 or 49) for drawing the connecting pipe (11 to 14) to the one material (61);
Use
The connecting pipe (11 to 14) is embedded in a vertically extending end groove (74) provided on an end surface of the other material (71), and the other material (71) is secured with a bolt (27), a screw nail (26), or the like. A part of the connecting pipe (11 to 14) protrudes from the end face of the other material (71),
The one material (61) is provided with a storage groove (64) having the same cross-sectional shape as the end groove (74), and the auxiliary plates (31 to 34) are arranged on the inner surface of the storage groove (64). The side surfaces of the auxiliary plates (31 to 34) and the connecting pipes (11 to 14) are in contact with each other, and the end surface of the other material (71) is in contact with the one material (61).
The storage groove (64) and the end groove (74) do not reach the lower surface of the one material (61) or the other material (71), and are interrupted in front of the one material (61) or the other material (71). ) And the auxiliary plates (31 to 34) are covered with the one material (61) and the other material (71) except for the upper part thereof,
The hook (48 or 49) passes through a passage hole (39) provided in the auxiliary plate (31 to 34), one end of which is fixed to the one material (61), and the other end is the auxiliary plate (31). To 34), and a lower groove (19) for inserting the hook (48 or 49) is provided in the lower part of the connecting pipe (11 to 14),
In order to transmit a vertical load between the connecting pipes (11 to 14) and the auxiliary plates (31 to 34), one side (61) side is provided on one side upper part of the connecting pipe (11 to 14). The auxiliary plate (31 to 34) is provided with a receiving groove (36) for receiving the jaw portion (16), and the jaw portion (16) is provided with the abutting portion (16). A connecting structure characterized in that a close-up hole (21) for passing a tool (28 or 29) is formed.

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