Wood joining member

The wood joining member simplifies wood processing by using pipe portions with adhesive and shaft through holes, and a flange for easy attachment, addressing high costs and complexity in conventional methods, thereby enhancing workability and reducing costs.

JP2025143676APending Publication Date: 2025-10-02KUMAGAI GUMI CO LTD
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Patent Information

Application Number
JP2024043026
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-19
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Conventional wood joining members require complex processing work on wood, leading to high costs and inefficiencies due to the need for through holes and insertion holes, which complicates the wood processing.

Method used

A wood joining member comprising a first and second mounting member with pipe portions and a connecting member, featuring adhesive filling through holes and shaft through holes, along with a flange portion for easy attachment and a sharpened tip for insertion, allowing for simplified wood processing and reduced costs.

Benefits of technology

The solution enables easy and cost-effective wood processing by simplifying the wood joining process, enhancing workability and reducing processing costs while maintaining strong structural integrity.

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Abstract

To provide a wood joining member which makes processing on wood easy and can reduce the processing cost of wood.SOLUTION: A wood joining member 1 of the present invention includes one attachment member 2A to be attached to one piece of wood, another attachment member 2B to be attached to the other piece of wood, a connecting member 3 connecting the one attachment member and the other attachment member, and fixing means 4A, 4B. The one attachment member and the other attachment member each has a pipe 20, which has a fitting pipe 21 that fits into a hole formed in the wood and a connecting side pipe 22 that protrudes out of the hole. The fitting pipe 21 has a plurality of through holes 23 for filling with adhesive. The connecting side pipe 22 has a shaft material through hole 24 for passing a shaft material (shaft of a bolt 40) that constitutes the fixing means through it. The connecting member 3 is composed of a pipe into which the connecting side pipes 22, 22 of the one attachment member and the other attachment member are inserted, and which has a shaft material through hole 34 that matches the shaft material through hole 24 of the connecting side pipe 22.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a wood joining member for joining pieces of wood together. [Background technology]

[0002] BACKGROUND ART Wood joining members for joining pieces of wood together, such as a wooden pillar and a wooden beam, or a wooden beam and a wooden beam, are known (see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-056249 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-273955 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the conventional wood joining members described above for joining pieces of wood together, it is necessary to form through holes in the wood to allow the joining member to pass through and insertion holes for inserting the joining member, which requires complex processing work on the wood and results in issues such as high wood processing costs. The present invention provides a wood joining member that is easy to process wood, can reduce wood processing costs, and has excellent workability. [Means for solving the problem]

[0005] The wood joining member according to the present invention is a wood joining member comprising a first mounting member to be attached to one piece of wood, a second mounting member to be attached to the other piece of wood, a connecting member connecting the first mounting member to the other mounting member, one fixing means for fixing the first mounting member to the connecting member, and another fixing means for fixing the other mounting member to the connecting member, wherein the first mounting member and the other mounting member comprise pipe portions, the pipe portions comprising fitting pipe portions that fit into holes formed in the wood and connecting side pipe portions that protrude out of the holes, the fitting pipe portions have a plurality of adhesive filling through holes for allowing adhesive to flow from the inside to the outside of the pipe, the connecting side pipe portions have shaft through holes for passing through shaft members that constitute the fixing means, and the connecting member is comprised of a pipe into which the connecting side pipe portions of the first mounting member and the other mounting member are inserted, the pipe portions having shaft through holes that match the shaft through holes of the connecting side pipe portions. The connector further comprises a flange portion provided so as to protrude from the peripheral surface of the pipe portion, the flange portion being provided at the boundary between the fitting pipe portion and the connection side pipe portion. The tip of the fitting pipe is characterized by being cut obliquely to form a sharp tip. The wood joint member according to the present invention can be easily processed onto wood, reducing wood processing costs, and providing a wood joint member with excellent workability. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is an exploded perspective view showing a wood joining member (first embodiment). [Figure 2] 1A to 1C are diagrams showing the steps of a wood joining method using a wood joining member (first embodiment). [Figure 3] FIG. 1 is a diagram showing a wooden pillar and a wooden beam joined together with a wooden joining member (first embodiment). DETAILED DESCRIPTION OF THE INVENTION

[0007] Embodiment 1 As shown in Figure 3, the wood joining member of embodiment 1 is a wood joining member 1 for joining one piece of wood 10A and another piece of wood 10B, and is configured to include a one-side mounting member 2A that is attached to one piece of wood 10A, a other-side mounting member 2B that is attached to the other piece of wood 10B, a connecting member 3 that connects the one-side mounting member 2A and the other-side mounting member 2B, a one-side fixing means 4A that fixes the one-side mounting member 2A to the connecting member 3, and a other-side fixing means 4B that fixes the other-side mounting member 2B to the connecting member 3.

[0008] As shown in FIG. 3, one piece of wood 10A is, for example, a pillar, and the other piece of wood 10B is, for example, a beam. In this case, the wood joint member 1 according to the first embodiment functions as a beam-column joint member.

[0009] As shown in FIG. 1, the one-side mounting member 2A and the other-side mounting member 2B are tubular members made of, for example, metal, each of which includes a pipe portion 20 and a flange portion 25 that protrudes from the circumferential surface of the pipe portion 20. The one-side mounting member 2A and the other-side mounting member 2B are, for example, configured from the same material.

[0010] The pipe portion 20 comprises an engaging pipe portion 21 having an outer diameter that fits into a hole 11 (see Figure 2(a)) formed in a piece of wood (one piece of wood 10A or the other piece of wood 10B), and a connecting side pipe portion 22 that protrudes outside the hole 11, and the flange portion 25 is composed of an annular plate formed to surround the outer periphery of the boundary between the engaging pipe portion 21 and the connecting side pipe portion 22.

[0011] The tip end of the fitting pipe portion 21 is configured as a sharpened portion 20T that is cut obliquely, for example. That is, the tip of the fitting pipe portion 21 is formed into a sharp cut surface cut in a direction that diagonally intersects with the center line of the pipe. The fitting pipe portion 21 has a plurality of adhesive filling through holes 23, 23 . . . for allowing the adhesive to flow from the inside of the pipe to the outside of the pipe.

[0012] The connection side pipe portion 22 has shaft member through holes 24, 24 for passing through the shaft portions of bolts 40 serving as shaft members constituting the fixing means 4A, 4B. The shaft through-holes 24, 24 are provided opposite each other on an axis perpendicular to the center line of the pipe so that the shank of the bolt 40 can be passed through in a direction perpendicular to the center line of the pipe.

[0013] The connecting member 3 is composed of a pipe having an inner diameter dimension larger than the outer diameter dimension of the connection side pipe portion 22 of one mounting member 2A and the outer diameter dimension of the connection side pipe portion 22 of the other mounting member 2B. That is, the connecting member 3 is composed of a pipe into which the connection side pipe portion 22 of one side mounting member 2A and the connection side pipe portion 22 of the other side mounting member 2B are inserted, and which has shaft material through holes 34, 34 that match the shaft material through holes 24, 24 of the connection side pipe portion 22.

[0014] The fixing means 4A on one side and the fixing means 4B on the other side are each made up of, for example, the bolt 40 as the shaft material described above and a nut 41 fastened to the bolt 40.

[0015] Next, a method for joining wooden pieces using the wooden joining member 1 according to the first embodiment will be described with reference to FIG. First, holes 11 are drilled in advance at the attachment positions of one mounting member 2A to one piece of wood 10A and the other mounting member 2B to the other piece of wood 10B. Next, as shown in Figure 2(a), the fitting pipe portion 21 of the one-side mounting member 2A is fitted into the hole 11 formed in one piece of wood 10A, and the flange surface (annular plate surface) of the flange portion 25 is brought into contact with the surface around the hole 11 of the one piece of wood 10A. After that, the shank of the bolt 40 is passed through the shank through holes 24, 24 of the connection side pipe portion 22 of the one side mounting member 2A, and then adhesive A is filled into the inside of the fitting pipe portion 21 and the connection side pipe portion 22 from the rear end opening 20R of the pipe of the connection side pipe portion 22. After the adhesive A begins to harden, the bolt 40 is pulled out. Furthermore, by allowing the adhesive A to harden completely, the one-side mounting member 2A is fixedly attached to the hole 11 in the one piece of wood 10A. That is, by filling adhesive A into the inside of the fitting pipe section 21 and the connecting side pipe section 22 from the rear end opening 20R of the pipe of the connecting side pipe section 22, the adhesive A flows from the inside of the pipe to the outside of the pipe through the multiple adhesive filling through holes 23, 23..., and the outer surface of the fitting pipe section 21 and the inner surface of the hole 11 are bonded together by adhesive A, so that the fitting pipe section 21 of the one side mounting member 2A is fixedly attached to the hole 11 of one piece of wood 10A. Similarly, after fitting the fitting pipe portion 21 of the other side mounting member 2B into the hole 11 formed in the other wooden piece 10B, adhesive A is filled into the inside of the fitting pipe portion 21 and the connection side pipe portion 22 from the rear end opening 20R of the tube of the connection side pipe portion 22, and the other side mounting member 2B is fixedly attached to the hole 11 of the other wooden piece 10B.

[0016] Next, as shown in Figure 2(b), the connection side pipe portion 22 of the one side mounting member 2A fixed to one piece of wood 10A is inserted into the inside of one side of the pipe of the connecting member 3, and the connection side pipe portion 22 of the other side mounting member 2B fixed to the other piece of wood 10B is inserted into the inside of the other side of the pipe of the connecting member 3. Then, the flange portion 25 of one side mounting member 2A is brought into contact with one end face of the pipe of the connecting member 3, and the flange portion 25 of the other side mounting member 2B is brought into contact with the other end face of the pipe of the connecting member 3. That is, the connecting member 3 is sandwiched between the flange portion 25 of the one side mounting member 2A and the flange portion 25 of the other side mounting member 2B, and the shaft through holes 34, 34 of the connecting member 3 are aligned with the shaft through holes 24, 24 of the connecting side pipe portion 22 of the one side mounting member 2A and the shaft through holes 24, 24 of the connecting side pipe portion 22 of the other side mounting member 2B.

[0017] Then, as shown in FIG. 2(c), one side mounting member 2A and connecting member 3 are fixed by one side fixing means 4A, and the other side mounting member 2B and connecting member 3 are fixed by the other side fixing means 4B. That is, the shank of the bolt 40 is passed through the shaft through hole 34 of the connecting member 3, the shaft through holes 24, 24 of the connecting side tube portion 22 of the one-side mounting member 2A, and the shaft through hole 34 of the connecting member 3, and a nut 41 is screwed onto the tip end of the shank of the passed-through bolt 40 to fasten it. Similarly, the shank of the bolt 40 is passed through the shaft through hole 34 of the connecting member 3, the shaft through holes 24, 24 of the connecting side tube portion 22 of the other side mounting member 2B, and the shaft through hole 34 of the connecting member 3, and a nut 41 is screwed onto the tip side of the shank of the passed bolt 40 to fasten it.

[0018] Alternatively, adhesive A may be filled inside the fitting pipe section 21 and the connection side pipe section 22 without the shaft of the bolt 40 passing through the shaft material through holes 24, 24 of the connection side pipe section 22, and after the adhesive A has hardened, the one side mounting member 2A and the connecting member 3 may be fixed by one side fixing means 4A, and the other side mounting member 2B and the connecting member 3 may be fixed by the other side fixing means 4B.

[0019] As a result of the above, the wooden piece 10A and the wooden piece 10B are joined by the wooden piece joining member 1. For example, as shown in FIG. 3, a wooden post as one piece of wood 10A and a wooden beam as another piece of wood 10B are joined by a wood joining member 1.

[0020] The number of wood joining members 1 used to join one piece of wood 10A and the other piece of wood 10B may be determined depending on the size, weight, etc. of the one piece of wood 10A and the other piece of wood 10B.

[0021] According to the wood joining member 1 of embodiment 1, the processing of the wood (one piece of wood 10A or the other piece of wood 10B) is simply performed by using a drill on the surface side of the wood to form a hole 11 for fitting the fitting pipe portion 21 of the one side mounting member 2A or the other side mounting member 2B, which makes the processing of the wood easy and reduces the wood processing costs. Furthermore, since it is only necessary to attach one side mounting member 2A to a hole 11 formed in one piece of wood 10A and the other side mounting member 2B to a hole 11 formed in the other piece of wood 10B, a wood joining member 1 with excellent workability can be provided.

[0022] In addition, the one-side mounting member 2A and the other-side mounting member 2B are provided with a flange portion 25 that protrudes from the peripheral surface of the boundary portion between the fitting pipe portion 21 and the connection side pipe portion 22 in the pipe portion 20, and the flange portion 25 functions as an attachment state confirmation means as described below. That is, by bringing the flange 25 into contact with the surface around the hole 11 of the wooden pieces 10A and 10B, the flange 25 functions as an attachment state confirmation means when the fitting pipe 21 is attached to the hole 11. In addition, by bringing the end face of the connecting member 3 into contact with the flange portion 25 and confirming that the end face of the connecting member 3 and the flange portion 25 are in contact, the flange portion 25 also functions as a means for confirming the installation state of the connecting member 3. In this way, by providing the flange portion 25 to the one-side mounting member 2A and the other-side mounting member 2B, it is possible to provide a wood joining member 1 that is excellent in workability.

[0023] Furthermore, the tip side of the fitting pipe portion 21 of the one-side mounting member 2A and the tip side of the fitting pipe portion 21 of the other-side mounting member 2B are configured with a sharpened portion 20T, which makes it easier to insert the one-side mounting member 2A and the other-side mounting member 2B into the hole 11, thereby making it possible to provide a wood joining member 1 with excellent workability.

[0024] Embodiment 2 In the wood joining member 1 of embodiment 1, the tubular portions 20 of the one-side mounting member 2A and the other-side mounting member 2B are exemplified as having flange portions 25, but the one-side mounting member 2A and the other-side mounting member 2B may be configured not to have flange portions 25. That is, the one side mounting member 2A and the other side mounting member 2B are each composed of a pipe portion having an engaging pipe portion 21 with an outer diameter that fits into a hole 11 formed in the wood (one piece of wood 10A or the other piece of wood 10B) and a connecting side pipe portion 22 that protrudes outside the hole 11, and the engaging pipe portion 21 has a plurality of adhesive filling through holes 23, 23... for allowing adhesive A to flow from the inside of the pipe to the outside of the pipe, and the connecting side pipe portion 22 has shaft through holes 24, 24 for passing the shank of the bolt 40 through in a direction perpendicular to the center line of the pipe.

[0025] Embodiment 3 In the above, an example has been given of a configuration using bolts 40 and nuts 41 as the fixing means 4A on one side and the fixing means 4B on the other side, but as the fixing means 4A on one side and the fixing means 4B on the other side, it is also possible to use a shaft material for fitting and fixing, which is passed through the shaft material through hole 34 of the connecting member 3, the shaft material through holes 24, 24 of the connecting side pipe section 22, and the shaft material through hole 34 of the connecting member 3 in an fitted state, thereby fixing the connecting member 3 and the connecting side pipe section 22.

[0026] Embodiment 4 The pipe portion 20 of the one mounting member 2A and the pipe portion 20 of the other mounting member 2B may have different pipe diameters. In this case, the connecting member 3 may be a pipe whose inner diameter on one side is formed to a size corresponding to the outer diameter of the pipe portion 20 of the one-side mounting member 2A, and whose inner diameter on the other side is formed to a size corresponding to the outer diameter of the pipe portion 20 of the other-side mounting member 2B.

[0027] In addition, Figure 3 illustrates a configuration in which a wooden pillar as one piece of wood 10A and a wooden beam as the other piece of wood 10B are joined by a wooden joining member 1, but the wooden joining member of the present invention can also be used to join pieces of wood, such as pillars and pillars, beams and beams, walls and walls, or walls and beams, or other pieces of wood. [Explanation of symbols]

[0028] 1 wood joint member, 2A one side mounting member, 2B other side mounting member, 3 connecting member, 4A one side fixing means, 4B the other side mounting member, 10A one side wood, 10B other wood, 20 pipe part, 20T sharp part, 21 fitting pipe part, 22 connection side pipe portion, 23 adhesive filling through hole, 24 shaft material through hole, 25 flange portion, 34 Shaft through hole, A adhesive.

Claims

1. A wood joining member comprising: a first mounting member to be attached to one piece of wood; a second mounting member to be attached to the other piece of wood; a connecting member connecting the first mounting member and the second mounting member; a first fixing means for fixing the first mounting member and the connecting member; and a second fixing means for fixing the second mounting member and the connecting member, The one-side mounting member and the other-side mounting member each include a pipe portion, The pipe portion includes a fitting pipe portion that fits into a hole formed in the wood, and a connecting pipe portion that protrudes outside the hole, the fitting pipe portion has a plurality of adhesive filling through holes for allowing adhesive to flow from the inside of the pipe to the outside of the pipe; the connection side pipe portion has a shaft member through-hole for passing a shaft member constituting the fixing means therethrough; A wood joining member characterized in that the connecting member is composed of a pipe into which the connection side pipe portion of one mounting member and the connection side pipe portion of the other mounting member are inserted, and which has a shaft through hole that matches the shaft through hole of the connection side pipe portion.

2. A flange portion is provided so as to protrude from the circumferential surface of the pipe portion, 2. The wood joining member according to claim 1, wherein the flange is provided at the boundary between the fitting pipe portion and the connecting side pipe portion.

3. 2. The wood joining member according to claim 1, wherein the tip of the fitting pipe portion is formed into a sharpened portion cut obliquely.

Citation Information

Patent Citations

  • Joint structure of wooden member

    JP2000273955A

  • Joint structure of wooden building

    JP2020056249A