JP2007120181A - Wooden joint member, wooden joint structure, and wooden joint construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden joint member which contributes to improved rigidity of a tenon without damaging texture peculiar to wood, and achieves rigid connection between the tenon and a mortise, and to provide a wooden joint structure and a wooden joint construction method. <P>SOLUTION: According to the wooden joint structure, both wooden structural members are connected together via the tenon 6a and the mortise 5. Herein a core of the wooden joint member forming the wooden structural member of the tenon 6a is made of a single high-strength material having a cross section equal to that of the mortise 5 formed in the wooden structural member of the counterpart, and then the wooden structural member is assembled by laminating surface finishing connection members 7 on both peripheral sides of the high-strength member as a core member 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wood joint material, a wood joint structure using the wood joint material, and a wood joint construction method for constructing the wood joint structure.

  In the base-column joint structure in a wooden framed house, the traditional tenon and mortise joints are used. In other words, mortise holes are engraved in advance at the mounting position of the pillars on the base, and mortise processing is applied to the base-side joint ends of the pillars, and the tenons are inserted into the mortises to insert the pillars onto the base. It is fixed. In addition to this, there are also cases where it is now quake-proof, strip-shaped, and other subsidies.

  However, if the single wood that constitutes the pillar is made of soft wood, the tenon can be easily pulled out or seated when a vertical pulling force acts between the pillar and the base due to an earthquake or the like. It is easy to bend, and when an auxiliary hardware is interposed, the joint between the pillar and the auxiliary hardware is easily broken.

  In order to prevent the seed buckling, it is sufficient to change the pillar material to high strength wood such as composite material, laminated material, or to change the member cross section to a large one, but the material itself becomes expensive. In particular, when the member cross section is enlarged, not only the column material but also the sections such as the base, beams, girders, and girder are forced to be changed, which further increases the construction cost.

  Therefore, the present applicant has previously developed a joint structure shown in the following patent document. In this case, taking the example of the joint structure between the base and the column, a concave groove is formed at a location corresponding to the tenon portion of the column, and a piece of wood sandwiched between a pair of reinforcing steel plates is projected from the end of the column. With the projecting part fitted in the mortise, the base and the base of the pillar are driven from the side with a fixing tool made of a linear connecting material such as a nail or tapping screw to fix the two parts together. To do.

  Further, as shown in FIG. 5 of the following patent document, there is a structure in which slits are formed on the column side on both sides of the tenon protruding from the column tip, and the reinforcing steel plate is inserted into the slit.

In any structure, the reinforcing effect of the steel plates provided on both sides of the tenon portion can ensure the rigidity of the joint and increase the buckling strength.
JP 2004-245034 A

  However, in the above-mentioned joining structure, it is necessary to join the pillar and the reinforcing steel plate embedded in the pillar. As a result, the fixing tool is driven into this part, so that the head of the fixing tool is placed below the pillar. The part was exposed and there existed a subject which spoiled the texture as a wooden structure material.

  That is, there is no problem because the structural material is concealed in the case of a large wall structure in a housing with a frame structure, but in the case of a true wall structure, main structural materials such as columns and girders are exposed to the outside as they are. Processing and curing as finishing materials are necessary. Therefore, if the joint portion is exposed, a coating process for finishing is required separately, which causes an increase in man-hours.

  Therefore, the present invention solves the above-described problems, and improves the tenon rigidity without damaging the texture unique to the wood, and the wood joint material that can more firmly join the mortise, A joint structure and a joint construction method are provided.

In order to achieve the above-mentioned object, the wood joint material according to the present invention is a longitudinal wood joint material (column 9) having a tenon 6a projecting from its end face, as shown in the embodiment of the figure. And a bonding material 7 bonded to the outside of the core material 6 with the end portion of the core material 6 protruding as a tenon 6a.
In the embodiment shown in the drawing, the above-mentioned wood joint material is a wood material having an elongated cross section, has a three-layer structure in the width direction, and the joining materials 7 and 7 are integrally formed on both sides of the core material 6 at the center. It is formed by stacking. Used for pillars and beams of wooden buildings.

  The present invention is characterized in that the core material 6 and the bonding material 7 are integrally laminated and bonded together in advance at a lumber mill in a state where the tenon 6a protrudes from an end portion.

  Further, the present invention is characterized in that the core material 6 is formed of a material having higher strength than the bonding material 7.

  Further, in the present invention, the bonding material 7 is formed of a composite material obtained by bonding a plurality of natural wood or thick plate-like natural wood, and the core material 6 has a higher strength than the bonding material 7, It is characterized by being formed of a reinforced composite material such as thin plate laminated material or chip laminated material.

  The wood joint structure according to the present invention uses the wood joint material described above as one wood structure material, and joins the wood structure materials to each other through the tenon 6a and the tenon hole 5, and the tenon 6a The core part of the wood joint material forming the side wood structure material is composed of one high strength material having a cross-sectional shape equal to the mortise 5 formed in the other wood structure material, As a core material 6, a surface finishing bonding material 7 is laminated and integrated around the core material 6.

  Moreover, in this invention, in the state which fitted the tenon 6a which protrudes from the said core material 6 in the tenon hole 5 of the other party's wooden structure material, the side surface of the said other party's wooden structure material and the plurality which penetrate the tenon It is characterized by being connected by a fixture 10.

  In the wood joint construction method according to the present invention, when the wood joint structure is constructed, the core material 6 and the joining material 7 are transported to the construction site in a separated state, and the core material 6 is tenon of the counterpart wood structure material. After fitting into the hole 5, a plurality of the bonding materials 7 are laminated and integrated on the outside of the core material 6 by adhesion or the like.

  In the wood joint material or the wood joint structure of the present invention, the core material that serves as the tenon portion can be composed of a high strength material, has high tensile strength, and is entirely surrounded by the wood material. The texture peculiar to the woody system can be obtained.

  Further, in the present invention, the tenon processing work can be omitted.

  In the wood joint structure of the present invention, the connection between the mortise and the mortise can be strengthened. At this time, the head of the fixture only protrudes to the side surface of the mating member, and the joint material itself is surrounded by the wood material, and a texture peculiar to the wood system can be obtained.

  Furthermore, according to the present invention, the degree of freedom of material dimension adjustment at the site is high, and the flexibility according to the site construction can be obtained.

  The best mode of the present invention will be described below with reference to the accompanying drawings. 1 (a) to 1 (d) are cut models showing construction procedures in the field according to the first embodiment of the present invention in which the present invention is applied to a base-column joint.

  In FIG. 1 (a), 1 is a concrete cloth foundation, 2 is installed on the foundation 1, and an anchor bolt 3 protruding from the foundation 1 is inserted and fixed to the protruding end via a nut 4. It is a base and is made of a wood material having a substantially regular square cross section.

  Mortise 5 is formed at an appropriate position of the base 2. The mortise 5 has a length direction equal to the cross-sectional length of the base 2 at the center of the base 2, a width direction is formed to 1/3 of the cross-sectional length, and penetrates to the base 1.

  A single high-strength material (hereinafter referred to as a core material) that constitutes a core portion of a pillar 9 described later is inserted into the mortise 5. Like the mortise 5, the core 6 has the same length as the cross-sectional length of the base 2 and the width is 1/3 of the cross-sectional length. As shown in FIG. Becomes tenon 6a.

  Next, a bonding material 7 formed of surface-finishing wood constituting the outer surface of the pillar 9 is integrally attached to both side surfaces of the core material 6. The joining material 7 is generally made of cedar, timber, etc., or a combination thereof, which is used as a pillar material, and has the same vertical and horizontal dimensions as the core material 6 and has been subjected to surface finishing in advance. The lower surface of the core member 6 is attached to both surfaces of the core member 6 in a state where the lower surface is abutted against the upper surface of the base 2.

  As shown in FIG. 1 (c), an adhesive is applied to the bonding surface 7a of each bonding material 7 with respect to the core material 6 in advance, and in an overlapped state, the height direction is appropriately spaced as shown in FIG. The clamp tool 8 such as chisel is tightened to firmly hold the three members. The adhesive may be applied to the core material 6 side, or may be applied to both. In addition, if a spacer made of wood or the like is interposed at the contact position between the clamp 8 and each bonding material 7, it is possible to prevent a clamp mark from being made. It is also possible to bond and fix the core material 6 of the bonding material 7 with a fixing tool such as a nail or a wood screw.

  As the adhesive, a thermosetting adhesive such as an epoxy type is preferable, and the core material 6 and the bonding material 7 on both sides thereof are integrated by curing and curing the adhesive, and the above-mentioned cross-sectional dimensions of the base 2 are the same. Formed on the pillar 9.

  Thereafter, the pillar 9 is integrally joined to the base 2 by screwing a fixture 10 made of a linear connecting material such as a plurality of tapping screws through one side surface of the base 2 and the tenon 6a. As shown in FIG. 1D, the joint is completed simultaneously with the completion of the column 9.

  In the completed state, the head of the fixture 10 is only exposed on the side surface of the base 2 and the base 2 is normally hidden under the floor, so there is no problem even in the case of a true wall structure. Only the pillar 9 is erected on the upper part of the base 2.

  The high-strength material to be the core material 6 is formed of a wood material having a higher tensile strength than the bonding materials 7 on both sides. For example, the core material 6 can be formed of a thin plate assembly material or a chip assembly material, and the bonding material 7 can be formed of natural wood or a plywood laminated with natural wood thick plates.

  Thus, by selecting the material of the core material 6 according to the required strength, the required strength and rigidity corresponding to the required location can be obtained. In this case, a material having a strength higher than that of the bonding material 7 is selected as the strength of the core material 6.

  Next, FIG. 2 shows a second embodiment of the present invention. In the following description of the present embodiment, the same reference numerals are used for the same parts as those in the first embodiment, and different reference numerals are used only for different parts or newly added portions.

  In this embodiment, as shown in FIG. 2A, after the bonding material 7 is polymerized on both surfaces of the core material 6, the fixing tool 10 is moved from one side of the bonding material 7 in a state where the three members are held by the clamp tool 8. It penetrates the core material 6 and is eaten into the other bonding material 7.

  A large-diameter hole 11 is formed in the opening of the lower hole of the fixture 10, and after screwing the fixture 10, a wooden plug 12 made of the same material as the bonding material 7 is placed in the same direction as the wood direction of the normal material. As shown in Fig. 2 (b), the surface of the screw is hardly noticeable, the appearance as a woody material is not impaired, and rust etc. Can also be prevented.

  In addition, since most of the buildings of the current wooden frame structure have a built-in wall structure on the indoor side and a large wall structure on the outer wall side, the screwing direction of the fixture 10 is directed from the outside to the inside of the building. Thus, the wooden plug 12 is also unnecessary.

  Further, not only by integration by screwing, but also by using an adhesive in the same manner as in the first embodiment, reliable integration is possible due to the so-called paste-nail combined effect.

  Next, FIG. 3 shows a third embodiment of the present invention. In the present embodiment, the joining material 7 is integrally laminated and bonded to both sides of the core material 6 in a state where the tenon 6a protrudes to the lower end by press bonding processing or the like in advance at a woodworking factory or the like, and is formed on the pillar 9 at the site (a ) After fitting the tenon 6a into the tenon hole 5 of the base 2 as shown in FIG. 2B, the base 10 as shown in FIG. 2C is obtained by screwing a plurality of fixtures 10 as shown in FIG. 2 is a column 9 joined to the top.

  In this embodiment, the degree of freedom of construction on site is small, but a base-column joint structure can be obtained with high accuracy according to the design.

  Next, FIG. 4 shows a fourth embodiment of the present invention. This embodiment is the same as each embodiment described above except that the decorative thin plates 20 are attached to both sides of the laminated surface of the core material 6 and the bonding material 7.

  In this embodiment, it is suitable when the material colors of the core material 6 and the bonding material 7 are extremely different. The thin plate 20 may be attached at the time of on-site assembly work shown in FIGS. 1 and 2 or may be attached in advance at the time of construction in a factory.

  In each of the embodiments described above, each member is shown as a cut model, and a case where the member is applied to a T-shaped joint among the base and the column is described. However, an L-shape that is a corner of the base and a corner column (through column) It can also be applied to joints.

  Further, between the pillars 9 standing on the base 2, a horizontal member referred to as a so-called “nuki” is provided so as to penetrate through a plurality of stages. It is also possible to set the arrangement interval according to the position. In this case as well, it may be performed in order from the bottom on the site, or it may be formed at a factory in advance according to the interval and cross section of the opening. It is.

  Furthermore, although each embodiment showed the case where it applied to the joining between a base and a pillar, it is needless to say that it can apply generally to the joining by the tenon and mortise of wood structure materials, such as between a beam and a pillar, and between a body removal and a pillar. .

(A)-(d) is a perspective view of the cut model which shows the joining procedure between the base-column by 1st Embodiment of this invention. (A), (b) is a perspective view of the cut model which shows the base-column joining procedure by 2nd Embodiment of this invention. (A)-(c) is a perspective view of the cut model which shows the joining procedure between the base-column by 3rd Embodiment of this invention. It is a perspective view of the cut model which shows the joining state between the foundation and the pillar by 3rd Embodiment of this invention.

Explanation of symbols

2 Foundation (wooden material on the other side)
5 Mortise 6 Core material, 6a Mortise 7 Joining material 9 Pillar (wooden joint material)
10 Fixture

Claims (7)

  In a long wood joint material with a tenon projecting from the end face, a core material projecting with the end portion as a tenon, and a joining material joined to the outside of the core material with the end portion of the core material projecting as a tenon A wood joint material characterized by comprising:   The wood joint material according to claim 1, wherein the core material and the bonding material are laminated and bonded together in advance in a state where the tenon protrudes from an end portion.   The wood joint material according to claim 1 or 2, wherein the core material is made of a material having a strength higher than that of the bonding material.   The joining material is formed of natural wood or a composite material of natural wood, and the core material is formed of a reinforced composite material such as a composite material, a thin plate assembly material, and a chip assembly material that has higher strength than the joining material. The wood joint material according to any one of claims 1 to 3, wherein In the wood joint structure that joins wood structure materials through tenon and mortise,
The core part of the wood joint material forming the tenon side wood structure material is composed of one high strength material having a cross-sectional shape equal to the tenon hole formed in the other wood structure material, the high strength material A wood joint structure characterized by laminating and integrating a surface finishing bonding material around the core material.   The tenon projecting from the core member is fitted into the tenon hole of the mating wooden structure material, and the side surface of the mating wooden structure material and the tenon are connected by a plurality of fixing tools penetrating therethrough. The wood joint structure according to claim 5.   The wood joint construction method for constructing the wood joint structure according to claim 5 or 6, wherein after the core material is fitted into the mortise of the wood structure material on the other side, a plurality of the joining materials are provided outside the core material. A wood joint construction method characterized by laminating and integrating.

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