JP6771782B2 - Connected structure - Google Patents

Description

The present invention relates to a connecting structure that integrates members constituting the skeleton of a building.

There are various structures of buildings, but regardless of the scale, various rods are often assembled to build a skeleton, and the wooden frame construction method is widely used in small-scale buildings such as houses. In the wooden frame construction method, it is necessary to connect members such as columns and beams without loosening in order to secure strength, and measures such as fitting a tenon into a tenon groove have been taken for a long time. However, traditional methods such as tenons increase the cross-sectional defects of the members and require time and effort to process them. Therefore, instead of the traditional method, various metal fittings such as metal pipes may be used. When a laminated wood with a large cross section is used as the skeleton, various metal fittings such as bolts and lug screws are indispensable for the connection.

Various technological developments have been promoted for various metal fittings for the purpose of improving reliability. For example, in Patent Document 1 described later, a building joint that can improve the joint strength and workability and reduce the manufacturing cost. The metal fittings are disclosed. This building joint fitting is used to connect two members such as columns and beams, and a U-shaped receiving bracket, a connecting pin that integrates the receiving bracket and the beam, and the center of the receiving bracket are inserted into the pillar. It is composed of a rod-shaped fixing bracket and a fixing pin that integrates the fixing bracket and the pillar, and no bolt is required when attaching the receiving bracket. Therefore, workability during construction is improved, and a special tightening tool such as a box wrench is not required.

Next, Patent Document 2 discloses a building frame member used for connecting columns and beams. This building frame member has a configuration in which the column and the beam are connected by engaging the lock member attached to the column and the hook member attached to the beam, and the engaging portion is attached to the tip of the shaft portion protruding from the lock member. The hook member is provided with an engaging portion into which the engaging portion is fitted. The engaging portion is rectangular, and the engaging portion is provided with a slit for guiding the engaging portion to the inside. After the engaging portion is accommodated in the engaging portion, the hook member is rotated to engage the engaging portion. The part cannot be separated from the engaging part, and the column and the beam are connected. With this building frame member, the connection work is completed simply by rotating the hook member, and there is no need to tighten bolts.

Japanese Unexamined Patent Publication No. 2010-281192 Japanese Unexamined Patent Publication No. 2014-214480

In Patent Documents 1 and 2, bolts and nuts are not used for connecting the members, tightening work at the time of construction is unnecessary, and labor and time can be reduced. In this way, as an example of the technology for connecting members without using bolts and nuts, a method of embedding metal fittings so as to straddle the members and driving a drift pin so as to penetrate the metal fittings and the members, or a pair of One method is to use the fitting of metal fittings. However, the method of driving the drift pin not only induces cracking of the member by increasing the number of the driving pins, but also makes it difficult to shorten the construction time. In addition, the drift pins are exposed on the sides of the member, thus losing the natural atmosphere of the wood.

Further, in the method using the fitting of a pair of metal fittings, the posture and the approaching direction are often limited when the fitting is actually performed. Therefore, when hoisting a member with one metal fitting attached with a crane and fitting it into the other metal fitting, careful operation is required, which does not lead to shortening of work time and may damage the metal fitting by careless operation. is there. In particular, a member having a large cross section is difficult to handle after being lifted, and it is often impossible to reduce labor and time during construction.

The present invention has been developed based on these circumstances, does not require tightening of bolts and nuts during construction, does not use a lot of drift pins, and does not change the operation when the member is lifted. The purpose is to provide a connected structure.

The invention according to claim 1 for solving the above-mentioned problems is a connecting structure for integrating a main material and an auxiliary material arranged apart from each other, and is attached to the main material in a detachable manner and the main material is attached to the main material. Inside the center tube, the pulling tool that protrudes from the material, the pulling tool that is attached to the auxiliary material inseparably and protrudes from the auxiliary material, and the central tube that is sandwiched between the main material and the auxiliary material. penetrates and with a restraint that contacts the shifting member, said pulling member comprises a shaft portion extending in a bar shape, a projecting piece located at one end of the shaft portion, the central tube, the the side hole for inserting said shifting member protruding from each of the main material sub timber provided, the side holes Yes disposed so as to face each other across an inner space of said central tube, said restraint Provided a vertical groove into which the shaft portion enters, and provided a space having a square cross section in the vicinity of the center of the vertical groove to accommodate the protruding piece, and of each surface surrounding the space, orthogonal to the vertical groove. The two opposing surfaces are contact surfaces that come into contact with the protruding pieces to restrict the movement of the gathering tool , and both of the protruding pieces that have entered the inside of the central canal come into contact with the contact surfaces. , The connecting structure is characterized in that the main material and the auxiliary material are attracted to each other with the central tube sandwiched between them.

The connecting structure according to the present invention is used to connect various rod-shaped or plate-shaped members such as columns and beams, and is mainly composed of two elements, a gathering tool and a restraining tool. In the present invention, among the members that can be used in any place and are connected, the one closer to the ground is referred to as a main material, and the one that is fictitiously supported by this main material is referred to as a secondary material. However, the main material and the auxiliary material are not strictly separated, and in the present invention, the main material and the auxiliary material are arranged apart from each other without contact.

The pulling tool is a rod-shaped part that is attached to both the main material and the auxiliary material, and is attached to the main material and the auxiliary material without detaching and protrudes from the surface thereof. The detailed shape of this gathering tool can be freely determined according to the application, etc., but at the tip (the position farthest from the main material and auxiliary material), a shaft portion extending in a rod shape is provided, and a shaft is further provided. At the tip of the portion, a flange-shaped protruding piece extending in the radial direction from the shaft portion is provided. It should be noted that only one pulling tool may be used for one main material or auxiliary material, or a plurality of pulling tools may be used.

Various conventional techniques are used for attaching the pulling tool to the main material and the auxiliary material. If the main material and auxiliary material are wood, it is difficult to directly attach the gathering tool, and metal fittings are inserted between them.

The restraint has a shape that fits tightly into the central pipe, and the contact surface of the restraint restricts the movement of the pulling tool, and pulls the main material and the auxiliary material inseparably. In many cases, a lug screw or deformed steel bar is embedded in the main material or auxiliary material, and the pulling tool is screwed into the female screw. In this case, a male screw is formed at the base of the gathering tool (opposite the protruding piece).

The central canal is made of metal, and its inner and outer peripheral surfaces are inevitably smooth, and aging deformation is unlikely to occur. Therefore, when designing the restraint, it is not necessary to consider the deformation of the main material, the degree of freedom in the shape of the restraint is increased, and not only the columnar shape but also the arc shape can be selected, and the method of manufacturing the restraint is diversified. , Cost reduction can be expected. The central canal can be a simple tube with both ends open, but it can also be bottomed to prevent the restraint from moving.

The contact surface is a flat portion provided on the restraint, and has a role of contacting a protruding piece of the gathering tool and holding the gathering tool. Further, the contact surface is formed at two positions so as to face each other inside the restraint, corresponding to the pulling tool inserted from the main material and the auxiliary material so as to face each other. Then, the restraint enters the outer circumference of the shaft portion of the gathering tool, and comes into contact with the protruding piece from there. Regarding the shape of the restraint, a vertical groove is formed so as to divide the restraint in half, and a square-shaped space is provided near the center of the vertical groove. In this case, the periphery of the square-shaped space becomes the contact surface, the shaft portion of the pulling tool enters the vertical groove, and the projecting piece enters the square-shaped space.

As described above, the present invention has a connecting structure in which a central tube is sandwiched between the main material and the auxiliary material without contacting the main material and the auxiliary material, and a pulling tool is attached to each of the main material and the auxiliary material, and the tip of the pulling tool is centered. It reaches the inside of the pipe, further embeds a restraint inside the central pipe, and draws the main material and the auxiliary material to the central pipe. The shape of the gathering tool may differ between the main material side and the auxiliary material side. In addition, a side hole is provided in the central canal in order to insert a protruding piece of a gathering tool or the like.

In the present invention, since the central canal is arranged outside, it is easy to use a steel material as the main material and the auxiliary material. If a metal square pipe is used as the main material, a communication hole is formed on the surface of the square pipe, and a pulling tool is arranged inside the square pipe. Then, the tip of the pulling tool is taken out from the communication hole, inserted into the central canal through the side hole, and the movement of the pulling tool is restricted by the restraint. In the present invention, the central canal is not embedded in the main material or the auxiliary material. Therefore, take some measures to prevent the restraint from falling out of the central canal.

As in the invention of claim 1, as a connecting structure between the main material and the auxiliary material, a pulling tool, a central canal, a restraining tool, or the like is used, and the pulling tool is attached to both the main material and the auxiliary material, and the main material and the auxiliary material are attached. The central tube is sandwiched between the material and the main material and the auxiliary material, and both the main material and the auxiliary material are inserted into the central tube, and the restraint is embedded in the central pipe to hold the auxiliary material inseparable. By pulling both of the materials to the central pipe, it is not necessary to tighten bolts and nuts when connecting the main material and the auxiliary material, and a series of operations can be completed in a short time. The present invention does not require the central pipe to be embedded in the main material or the auxiliary material, and is suitable for connecting steel materials such as square pipes.

Further, in the present invention, since the main material and the auxiliary material are connected via the gathering tool, it is not necessary to drive a large number of drift pins into the connecting points. Therefore, the amount of work during construction can be suppressed, and cracking of members and deterioration of aesthetic appearance can be avoided. In addition, the procedure for bringing the main material and the auxiliary material close to each other during construction is the same as before, and no special operation such as rotating the member is required, and the labor does not increase.

In the perspective view showing a specific example of the present invention, it is assumed that the main material and the auxiliary material are attracted through the central canal. FIG. 1 is a perspective view showing a state in which the main material and the auxiliary material are connected in a clove shape, and a central canal is sandwiched between the main material and the auxiliary material.

FIG. 1 shows a specific example of the present invention, and it is assumed that the main material 73 and the auxiliary material 83 are attracted to each other via the central pipe 34. In this figure, a metal square pipe is used as the main material 73, but the auxiliary material 83 is made of wood, and the side surface of the main material 73 and the end surface of the auxiliary material 83 are attracted to the central pipe 34. The central pipe 34 is located outside the main material 73 and the auxiliary material 83, but the tips of the pulling tools 14 and 15 are inserted into the central pipe 34, and the movement is restricted by the restraining tool 24. Therefore, a side hole 35 is provided on the side peripheral surface of the central pipe 34.

The main material 73 and the central pipe 34 are attracted by the gathering tool 14. The gathering tool 14 is inserted into the main material 73, and the protruding piece 19 or the like is projected out from the communication hole 78 and inserted into the side hole 35 of the central pipe 34. The communication holes 78 are provided at two upper and lower positions, and the gathering tool 14 is inserted into each of the communication holes 78. The communication hole 78 has an inner diameter that the brim 39 of the gathering tool 14 cannot pass through.

For the auxiliary material 83, the lug screw 51 is embedded in the prepared hole 85 processed on the end face thereof. Then, the pulling tool 15 is screwed into the female screw 59 on the head 54 side of the lug screw 51. The gathering tool 15 is bolt-shaped and forms a male screw 38 to be screwed with the female screw 59. As for the auxiliary material 83, the lug screw 51 and the gathering tool 15 are arranged at two positions above and below, and the protruding piece 19 of the gathering tool 15 is inserted into the side hole 35 of the central pipe 34.

When the protruding pieces 19 of the pulling tools 14 and 15 are inserted into the central tube 34 and then the restraining tool 24 is embedded therein, the shaft portion 18 of the pulling tools 14 and 15 enters the inside of the vertical groove 27 and further protrudes. The piece 19 comes into contact with the contact surface 29, and the pulling tools 14 and 15 cannot be separated from the central tube 34. In order to prevent the restraint 24 from moving, a stop bolt 37 is inserted from the side peripheral surface of the central pipe 34 to press the restraint 24. A female screw 36 is formed on the side peripheral surface of the central pipe 34 for inserting the set bolt 37.

FIG. 2 shows a state in which the main material 73 and the auxiliary material 83 of FIG. 1 are connected in a clove shape, and the central pipe 34 is sandwiched between the main material 73 and the auxiliary material 83. Inside the central pipe 34, projecting pieces 19 of the gathering tools 14 and 15 on both the main material 73 side and the auxiliary material 83 side are inserted, and when the restraint tool 24 is embedded therein, the contact surface 29 causes the restraining tool 24 to be embedded. The restraints 14 and 15 become immovable. Further, in order to prevent the restraint 24 from moving, a stop bolt 37 is inserted. The method of preventing the movement of the restraint 24 is not limited to this.

The invention of the present application is not limited to the forms shown in both figures, and the shapes and arrangements of the gathering tool and the restraining tool can be freely combined within a feasible range and introduced into various forms.

14 Alignment tool 15 Alignment tool 17 Body 18 Shaft 19 Protruding piece 24 Restraint 27 Vertical groove 29 Contact surface 34 Central pipe 35 Side hole 36 Female screw (side peripheral surface of central pipe)
37 Stopping bolt 38 Male screw 39 Brim 51 Lag screw 54 Head 55 Convex 59 Female screw (end face of lug screw)
73 Main material 78 Communication hole 83 Secondary material 85 Pilot hole

Claims (1)

It is a connecting structure for integrating the main material (73) and the auxiliary material (83) arranged apart from each other.
A pulling tool (14) that is attached to the main material (73) so as not to be detached and protrudes from the main material (73).
A pulling tool (15) that is attached to the auxiliary material (83) so as not to be detached and protrudes from the auxiliary material (83).
A central canal (34) sandwiched between the main material (73) and the auxiliary material (83),
A restraint (24) that enters the inside of the central canal (34) and comes into contact with the gathering tools (14 and 15).
Using
The gathering tools (14 and 15) include a shaft portion (18) extending in a rod shape and a protruding piece (19) located on one end side of the shaft portion (18).
The central tube (34) is provided with a side hole (35) for inserting the pulling tool (14 and 15) protruding from each of the main material (73) and the auxiliary material (83), and the side hole is provided. (35) is arranged so as to face each other across the internal space of the central canal (34) .
The restraint (24) is provided with a vertical groove (27) into which the shaft portion (18) is inserted, and a square cross section is provided in the vicinity of the center of the vertical groove (27) to accommodate the protruding piece (19). A space is provided, and of the surfaces surrounding the space, two facing surfaces orthogonal to the vertical groove (27) come into contact with the projecting piece (19) to restrict the movement of the gathering tools (14 and 15). As a contact surface (29)
When both the protruding pieces (19) that have entered the inside of the central canal (34) come into contact with the contact surface (29), the main material (73) and the main material (73) are sandwiched between the central canal (34). A connecting structure characterized by attracting the auxiliary material (83).

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