JP2011032824A - Fastening structure of member - Google Patents

Fastening structure of member Download PDF

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JP2011032824A
JP2011032824A JP2009182653A JP2009182653A JP2011032824A JP 2011032824 A JP2011032824 A JP 2011032824A JP 2009182653 A JP2009182653 A JP 2009182653A JP 2009182653 A JP2009182653 A JP 2009182653A JP 2011032824 A JP2011032824 A JP 2011032824A
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coupling member
members
main trunk
reinforcing shaft
main
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JP5554948B2 (en
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Yoshikuni Okura
義邦 大倉
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<P>PROBLEM TO BE SOLVED: To provide a fastening structure of members, which is adaptive to members of various sizes, flexibly copes with design changes and reforming construction, suppresses degradation in strength of timber due to secular deformation. <P>SOLUTION: A backbone member 11 and a connection member 21 are integrated with a connecting means such as tenon pipe 36 and a threaded nail 38, and further a reinforcing shaft 31 that penetrates both members is screwed. A spiral ridge 32 is formed on the reinforcing shaft 31. The ridge 32 is so arranged as to bridge between both members, and both members are integrated by way of the ridge 32 of the reinforcing shaft 31 in addition to the connecting means. So, a load for separating both members from each other can be strongly resisted when it is acted, and especially the rigidity against bending moment is enhanced. The reinforcing shaft 31 has a relatively small diameter and can be screwed in various members, being so flexible as to be handled with a small tool. The ridge 32 suppresses the secular deformation of the timber, to maintain the rigidity of a fastening portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、木造建築物の骨格などに使用される棒状の部材の締結構造に関する。   The present invention relates to a fastening structure of a rod-shaped member used for a skeleton of a wooden building.

住宅や物置小屋などの木造建築物の施工方法は、これまでに様々な技術が開発されているが、国内では、柱や梁などを組み上げて骨格を構築する軸組工法が広く普及している。軸組工法は、骨格の強度を確保するため、部材同士を強固に締結する必要があり、以前から部材の端面に仕口を加工するなどの対策が講じられているが、最近では仕口の代用として、各種の連結金物を用いることも多くなっている。この連結金物にプレカット技術を組み合わせることで、据え付け精度が向上するほか、現地での施工作業も簡素化され、優れた品質とコストダウンが実現している。   Various techniques have been developed for construction methods of wooden buildings such as houses and storage sheds, but in Japan, the frame construction method that builds a skeleton by assembling columns and beams is widely used. . In order to ensure the strength of the skeleton, the shaft assembly method needs to fasten the members firmly, and measures such as processing the joints on the end faces of the members have been taken for some time. As a substitute, various types of linked hardware are often used. Combining this joint hardware with precut technology improves installation accuracy and simplifies on-site construction work, resulting in superior quality and cost reduction.

最近では大断面の集成材の普及によって大規模な木造建築物の施工が容易になり、個人の住宅においても、柱の間隔を従来よりも延長できるようになり、大規模なインナーガレージなどが実現可能になってきた。このような大断面の集成材同士を締結する場合、従来の締結方法では十分な剛性を確保できないため、専用の連結金物を使用しており、本願発明者は、後記特許文献のような技術を開発している。この技術は、締結される二部材の両方にラグスクリューを埋め込んでおり、ラグスクリューの端面同士を接触させた上、双方をボルトで一体化している。   Recently, the construction of large-scale wooden buildings has become easier due to the widespread use of laminated wood with a large cross-section, and the interval between pillars can be extended more than before in individual houses, realizing large-scale inner garages and the like. It has become possible. When fastening such a large cross-section of laminated materials, the conventional fastening method cannot secure sufficient rigidity, so a dedicated connecting hardware is used. We are developing. In this technique, the lag screw is embedded in both of the two members to be fastened, the end surfaces of the lag screw are brought into contact with each other, and both are integrated with a bolt.

特開2009−127211号公報JP 2009-127211 A

前記特許文献のように、ラグスクリューを用いて部材同士を締結する構造は、曲げモーメントに対する剛性が高いほか、ラグスクリューが木材と強固に一体化しているため、木材の経年変形による強度の低下も発生しないなど、様々な利点がある。ただしラグスクリューは、その大きさから小断面の部材に埋め込むことが難しく、用途が門形フレームなどの部材に限定されている。またラグスクリューは、その大きさから製材段階で部材中に埋め込む必要があり、設計変更といった突発事態が発生した場合や、建物の改築工事などには、使用が難しいこともある。   As in the above-mentioned patent document, the structure in which members are fastened using a lag screw has high rigidity against bending moments, and the lag screw is firmly integrated with wood, so that the strength is reduced due to aging of the wood. There are various advantages such as not occurring. However, it is difficult to embed a lag screw in a member having a small cross section because of its size, and its use is limited to members such as a portal frame. In addition, the lag screw needs to be embedded in the member at the lumbering stage because of its size, and it may be difficult to use it in the event of a sudden change such as a design change or in a renovation of a building.

前記のように、様々な理由でラグスクリューの使用が難しい締結部においても、曲げモーメントに対する剛性を高くしたい場合や、木材の経年変形による強度の低下を防止したい場合がある。その際は、連結金物や釘の使用数を増やすといった単純な対策も可能だが、連結金物や釘は、木材の経年変形に対して万全の対策を講じることが難しい。また連結金物や釘の使用数を増やすことで、施工の際に時間や手間が増加する恐れもある。   As described above, even in a fastening portion where it is difficult to use a lag screw for various reasons, there are cases where it is desired to increase the rigidity against a bending moment or to prevent a decrease in strength due to aged deformation of wood. In that case, simple measures such as increasing the number of connected hardware and nails can be used, but it is difficult for the connected hardware and nails to take all possible measures against aging of wood. In addition, increasing the number of connecting hardware and nails may increase time and labor during construction.

本発明はこうした実情を基に開発されたもので、様々な大きさの部材に適用可能で、しかも設計変更や改築工事などにも柔軟に対応でき、さらに木材の経年変形による強度の低下も抑制できる、部材の締結構造の提供を目的としている。   The present invention was developed based on this situation, and can be applied to various sizes of members, and can be flexibly adapted to design changes and renovation work, and also suppresses strength reduction due to aging of wood. The object is to provide a member fastening structure.

前記の課題を解決するための請求項1記載の発明は、主幹部材の側面と結合部材の端面が接触する締結部に用いられ、主幹部材と結合部材は、連結手段によって一体化されており、前記連結手段とは別に、側周面に螺旋状の凸条を有しており且つ主幹部材と結合部材との境界を貫通するようにねじ込まれた補強軸を備えており、前記凸条は、主幹部材と結合部材の両方を跨ぐように配置されていることを特徴とする部材の締結構造である。   The invention according to claim 1 for solving the above problem is used in a fastening portion where the side surface of the main member and the end surface of the connecting member are in contact with each other, and the main member and the connecting member are integrated by a connecting means, Aside from the connection means, the side peripheral surface has a spiral ridge, and includes a reinforcing shaft screwed so as to penetrate the boundary between the main member and the coupling member, the ridge is The member fastening structure is arranged so as to straddle both the main trunk member and the coupling member.

本発明は、木造建築物の骨格として使用される柱や梁などの二部材を締結するために使用されるが、この二部材のうちの一方を主幹部材と称して、他方を結合部材と称するものとする。そして主幹部材の側面に結合部材の端面が接触することで、T字状またはL字状の締結部が構成される。また主幹部材と結合部材のいずれも、集成材を含む木質系であることを前提とする。なお主幹部材と結合部材は、原則として直交するように配置されるが、屋根を構成する箇所などでは、所定の交角を有するように配置される場合もある。   The present invention is used for fastening two members such as columns and beams used as a skeleton of a wooden building. One of the two members is referred to as a main member and the other is referred to as a coupling member. Shall. And the end surface of a coupling member contacts the side surface of a main trunk member, and a T-shaped or L-shaped fastening part is comprised. In addition, it is assumed that both the main member and the connecting member are made of wood including laminated timber. The main trunk member and the coupling member are arranged so as to be orthogonal in principle, but may be arranged so as to have a predetermined crossing angle at a portion constituting the roof.

連結手段は、主幹部材と結合部材を締結するためのもので、従来から普及している様々な技術をそのまま使用する。この連結手段によって、主幹部材の側面に結合部材の端面が密着して、両部材を引き離そうとする荷重やせん断荷重に対抗できるようになる。なお連結手段の例としては、平頭釘やボルト・ナットなどが挙げられる。   The connecting means is used to fasten the main member and the connecting member, and various techniques that have been widely used are used as they are. By this connecting means, the end surface of the coupling member is brought into close contact with the side surface of the main trunk member, so that it is possible to resist a load or shear load that attempts to separate the two members. Examples of connecting means include flat head nails and bolts / nuts.

補強軸は、主幹部材と結合部材との締結を一段と強固にするために使用され、ネジ釘と同様な形状のもので、側周面に凸条が螺旋状に形成されている。ただし本発明で用いる補強軸は、凸条の外径が最大でも20mm程度で、また凸条の高さ(突出長さ)は最低でも2mmは確保されており、汎用のネジ釘に比べて寸法が大きい。施工時は、主幹部材の側面から両部材の境界に向けて補強軸をねじ込んでいき、その先端が両部材の境界を通過して結合部材に到達することで、部材同士が強固に締結される。なお、補強軸の使用数やねじ込み位置については自在であり、荷重条件などに応じて最適な状態に配置することができる。   The reinforcing shaft is used to further tighten the fastening between the main member and the coupling member, and has a shape similar to that of a screw nail, and has a convex line formed in a spiral shape on the side peripheral surface. However, the reinforcing shaft used in the present invention has an outer diameter of the ridge of about 20 mm at the maximum and a height (projection length) of the ridge of at least 2 mm, which is smaller than that of general-purpose screw nails. Is big. At the time of construction, the reinforcing shaft is screwed from the side surface of the main member toward the boundary between the two members, and the tip passes through the boundary between the two members to reach the coupling member, so that the members are firmly fastened. . Note that the number of reinforcing shafts used and the screwing positions are arbitrary, and can be arranged in an optimum state according to the load conditions.

補強軸のねじ込み作業を終えた状態で、凸条は主幹部材と結合部材の両方を跨ぐように配置されている必要がある。これによって、いずれか一方の部材に作用した荷重は、凸条を介して補強軸に伝達して、さらに凸条を介して他方の部材に伝達していくため、両部材の境界に隙間が生じることを防止できる。なお凸条を有効に機能させるため、補強軸が主幹部材を横断している区間については、その延長の半分以上の範囲で凸条が形成されている必要があり、さらに結合部材側についても、主幹部材側と同等もしくはそれ以上の範囲に凸条が形成されている必要がある。   In the state where the screwing operation of the reinforcing shaft is finished, the ridges need to be disposed so as to straddle both the main trunk member and the coupling member. As a result, the load acting on one of the members is transmitted to the reinforcing shaft via the ridges and further transmitted to the other member via the ridges, so that a gap is formed at the boundary between both members. Can be prevented. In order to effectively function the ridges, for the section where the reinforcing shaft crosses the main trunk member, the ridges need to be formed in a range of more than half of the extension, and also on the coupling member side, It is necessary that the ridges are formed in a range equivalent to or larger than the main member side.

施工の際、主幹部材と結合部材との境界に隙間がある状態で補強軸をねじ込むと、以降、凸条の作用でその隙間が消滅することなく残存して、締結部の剛性が低下する恐れがある。したがって補強軸をねじ込む際は、連結手段によってあらかじめ両部材を密着させておく必要があり、しかも補強軸をねじ込む際の反力によって隙間が生じないよう、所定の強度を維持できる必要がある。本発明による補強軸は、通常のネジ釘よりも直径などが大きいため、事前に下穴を加工しておく必要があるが、それでもラグスクリューなどよりは小さく、持ち運び可能な小形ドリルを用いて現地で対応できる。   During construction, if the reinforcing shaft is screwed in a state where there is a gap at the boundary between the main member and the coupling member, the gap will remain without disappearing due to the action of the ridges, and the rigidity of the fastening part may be reduced. There is. Therefore, when screwing the reinforcing shaft, it is necessary to bring both members into close contact with each other in advance, and it is necessary to maintain a predetermined strength so that no gap is generated by a reaction force when screwing the reinforcing shaft. The reinforcing shaft according to the present invention has a diameter larger than that of a normal screw nail, so it is necessary to drill a pilot hole in advance, but it is still smaller than a lag screw, etc. It can respond.

このように螺旋状の凸条を有する補強軸を部材の中にねじ込むことで、汎用のラグスクリューなどと同様、補強軸と部材が広範囲に一体化するため、木材の経年変形の影響を受けることなく強度を維持できる。しかも両部材の境界を跨ぐように凸条を配置しているため、一方の荷重に作用した荷重は、速やかに他方の部材に伝達していき、締結部の剛性が維持される。   By screwing a reinforcing shaft with a spiral ridge into the member in this way, the reinforcing shaft and the member are integrated over a wide range, like a general-purpose lag screw, and so are affected by aging deformation of wood. The strength can be maintained. Moreover, since the ridges are arranged so as to straddle the boundary between the two members, the load acting on one load is quickly transmitted to the other member, and the rigidity of the fastening portion is maintained.

請求項2記載の発明は、連結手段を限定するもので、連結手段は、主幹部材の側面からねじ込まれて結合部材に螺合するネジ釘と、主幹部材と結合部材との境界を跨ぐように埋め込まれたホゾパイプと、であることを特徴とする。ネジ釘は汎用品であり、主幹部材の側面から結合部材に向けてねじ込まれる。なおネジ釘は、先の補強軸とは異なり、ネジ山が形成されているのは先端部だけに限定されており、ねじ込みを終えた状態において、ネジ山の全域は結合部材の中に位置している必要がある。したがって、主幹部材の側面に接触するネジ釘の頭部と、結合部材と螺合するネジ山が引き合うことで、主幹部材と結合部材が一体化される。   The invention according to claim 2 limits the coupling means, and the coupling means straddles the boundary between the main trunk member and the coupling member, and a screw nail that is screwed from the side surface of the main trunk member and screwed into the coupling member. It is characterized by being an embedded hozo pipe. The screw nail is a general-purpose product, and is screwed from the side surface of the main trunk member toward the coupling member. Unlike the previous reinforcing shaft, the threaded nail is limited to the tip only, and the entire thread is located in the coupling member when the screwing is finished. Need to be. Therefore, the main member and the coupling member are integrated by attracting the head portion of the screw nail that contacts the side surface of the main trunk member and the screw thread that engages with the coupling member.

ホゾパイプは、主幹部材と結合部材との境界を跨ぐように埋め込まれる棒状のもので、結合部材に作用するせん断荷重を主幹部材に伝達する役割がある。したがってホゾパイプは、原則として水平方向に埋め込む必要がある。またホゾパイプの具体的な形状については限定されないが、円断面のものが最適である。なおホゾパイプの中に前記のネジ釘を通過させることもできるが、ネジ釘を通過させる必要がない場合、中実のものも使用できる。   The hozo-pipe is a rod-shaped member embedded so as to straddle the boundary between the main trunk member and the coupling member, and has a role of transmitting a shear load acting on the coupling member to the main trunk member. Therefore, the hozo-pipe must be embedded in the horizontal direction in principle. Further, the specific shape of the hozo pipe is not limited, but a circular cross section is optimal. In addition, although the said screw nail can be passed through a hozo pipe, when it is not necessary to let a screw nail pass, a solid thing can also be used.

請求項3記載の発明も、連結手段を限定するもので、連結手段は、主幹部材と結合部材の境界に配置され、主幹部材の側面に接触する前板と、結合部材に形成された溝に差し込まれる横板と、で構成される連結金物であり、前記前板には、ボルト等を差し込むための固定孔を備え、前記横板には、結合部材に打ち込まれる固定ピンを挿通させるためのピン孔を有することを特徴とする。   The invention according to claim 3 also limits the connecting means. The connecting means is disposed at the boundary between the main trunk member and the coupling member, and is formed in a front plate that contacts the side surface of the main trunk member and a groove formed in the coupling member. The front plate is provided with a fixing hole for inserting a bolt or the like, and the horizontal plate is inserted with a fixing pin driven into a coupling member. It has a pin hole.

連結金物は、主幹部材と結合部材との境界に配置され、前板と横板で構成され、前板は、主幹部材の側面に接触してボルトなどで主幹部材と一体化される。また横板は、結合部材の端面から長手方向に加工された溝に差し込まれた上、結合部材と横板を貫通するように打ち込まれた固定ピンによって結合部材と一体化される。そのため前板には、ボルトなどを差し込むための固定孔が必要で、また横板には、固定ピンを挿通させるためのピン孔が必要である。なお連結金物の形状は、一枚の前板と一枚の横板をT字状に一体化したものや、一枚の前板の両側面から横板が延びるコの字状のものなど、自在に選択できる。ただしいずれの連結金物とも、主幹部材と結合部材を一体化して、せん断荷重を確実に伝達できる強度が必要である。   The connection hardware is arranged at the boundary between the main trunk member and the coupling member, and is constituted by a front plate and a horizontal plate. The front plate contacts the side surface of the main trunk member and is integrated with the main trunk member with a bolt or the like. The horizontal plate is inserted into a groove processed in the longitudinal direction from the end surface of the coupling member, and is integrated with the coupling member by a fixing pin driven so as to penetrate the coupling member and the horizontal plate. Therefore, the front plate needs a fixing hole for inserting a bolt or the like, and the horizontal plate needs a pin hole for inserting a fixing pin. The shape of the connecting hardware is such that one front plate and one horizontal plate are integrated in a T shape, or a U shape in which the horizontal plate extends from both side surfaces of one front plate, etc. You can choose freely. However, in any of the connecting hardwares, the main member and the coupling member are integrated, and the strength capable of reliably transmitting the shear load is required.

請求項1記載の発明のように、主幹部材と結合部材を各種の連結手段で一体化した上、さらに両部材を貫通する補強軸を打ち込むことで、連結手段のほか、補強軸に形成された凸条を介して両部材が一体化される。そのため、両部材を引き離そうとする荷重が作用した場合、これに強固に対抗可能で、締結部の剛性を一段と向上できる。また補強軸の凸条は、両部材に跨ってねじ込まれているため、木材の経年変形に対抗して両部材の密着状態を維持でき、締結部の剛性を長期間維持できる。   As in the first aspect of the invention, the main member and the coupling member are integrated by various connecting means, and further, the reinforcing shaft penetrating both members is driven to form the reinforcing shaft in addition to the connecting means. Both members are integrated via the ridges. Therefore, when the load which tries to separate both members acts, this can be countered strongly and the rigidity of a fastening part can be improved further. Further, since the ridges of the reinforcing shaft are screwed over both members, it is possible to maintain the close contact state of both members against the aging deformation of the wood, and to maintain the rigidity of the fastening portion for a long time.

さらに補強軸の大きさや使用数を調整することで、大規模な骨格構造から、軒先を支える小断面の部材まで、幅広く対応可能で汎用性に優れている。また曲げモーメントに対して強固に対抗する必要がある場合には、部材の端部近傍に補強軸を集中的にねじ込むといった対策ができるなど、柔軟性も高い。そのほか補強軸は、従来のラグスクリューなどに比べて直径が小さいため、その下穴は、持ち運び可能な小形ドリルで加工でき、突発的な設計変更や改築工事にも問題なく対応できる。なお補強軸は、汎用の釘などよりも寸法が大きく、使用数を抑制しながら所定の強度を確保できる。   Furthermore, by adjusting the size and number of reinforcing shafts, it can be used for a wide range of applications, from large skeleton structures to small cross-section members that support the eaves. In addition, when it is necessary to strongly counter the bending moment, it is possible to take measures such as intensively screwing the reinforcing shaft in the vicinity of the end of the member. In addition, since the diameter of the reinforcing shaft is smaller than that of a conventional lag screw, the pilot hole can be processed with a portable small drill, which can cope with sudden design changes and renovations. The reinforcing shaft has a size larger than that of a general-purpose nail and can secure a predetermined strength while suppressing the number of uses.

請求項2記載の発明のように、連結手段としてホゾパイプとネジ釘を用いることで、せん断荷重を確実に伝達可能で、しかも施工作業も単純であり、さらに部品の入手も容易でコストを抑制できる。また請求項3記載の発明のように、連結手段として連結金物を用いることで、部材同士の締結作業が容易であり、しかも引張荷重やせん断荷重に対しても十分な強度を有しており、さらに補強軸を併用することで、曲げモーメントに対する剛性が一段と向上して木材の経年変形にも耐えることができる。   As in the invention described in claim 2, by using a hozo pipe and a screw nail as the connecting means, the shear load can be reliably transmitted, the construction work is simple, the parts can be easily obtained, and the cost can be suppressed. . Moreover, like the invention of claim 3, by using a connection hardware as a connection means, it is easy to fasten between members, and has sufficient strength against tensile load and shear load, Furthermore, by using a reinforcing shaft in combination, the rigidity against bending moment is further improved and it is possible to withstand aging deformation of wood.

本発明による部材の締結構造の概要を示す斜視図と縦断面図である。It is the perspective view and longitudinal cross-sectional view which show the outline | summary of the fastening structure of the member by this invention. 図1に示す締結構造の施工途中の状態を示す斜視図と縦断面図である。It is the perspective view and longitudinal cross-sectional view which show the state in the middle of construction of the fastening structure shown in FIG. 連結手段として連結金物を使用した場合を示す斜視図である。It is a perspective view which shows the case where a connection metal fitting is used as a connection means. 図3に示す締結構造の施工途中の状態を示す斜視図と縦断面図である。It is the perspective view and longitudinal cross-sectional view which show the state in the middle of construction of the fastening structure shown in FIG. 結合部材が斜方向に配置されている場合に、本発明を適用したときの形態例を示す斜視図である。It is a perspective view which shows the example of a form when this invention is applied when a coupling member is arrange | positioned in the diagonal direction. 補強軸の詳細を示しており、(A)は大きさの概要を表す側面図で、(B)は凸条の配置例を表す側面図と、その使用状態の縦断面図である。The detail of the reinforcement shaft is shown, (A) is the side view showing the outline | summary of a magnitude | size, (B) is the side view showing the example of arrangement | positioning of a protruding item | line, and the longitudinal cross-sectional view of the use condition.

図1は、本発明による部材の締結構造の概要を示している。主幹部材11は直立しており、この上部の側面に結合部材21の端面が接触して、L字状の締結部が構成される。主幹部材11と結合部材21の締結には、ネジ釘38とホゾパイプ36と補強軸31が使用されており、そのうちホゾパイプ36は、金属製のパイプを所定の長さに切断したもので、上下に並んで二個が組み込まれており、結合部材21に作用する垂直荷重を主幹部材11に伝達している。なおホゾパイプ36を埋め込むため、主幹部材11と結合部材21の接触面を起点として両側にパイプ穴13、23を加工している。   FIG. 1 shows an outline of a fastening structure of members according to the present invention. The main trunk member 11 stands upright, and the end surface of the coupling member 21 comes into contact with the upper side surface to constitute an L-shaped fastening portion. A screw nail 38, a hoso pipe 36, and a reinforcing shaft 31 are used to fasten the main member 11 and the coupling member 21, and the hoso pipe 36 is formed by cutting a metal pipe into a predetermined length and vertically. Two pieces are incorporated side by side, and a vertical load acting on the coupling member 21 is transmitted to the main member 11. In order to embed the hozo-pipe 36, the pipe holes 13 and 23 are machined on both sides starting from the contact surface of the main trunk member 11 and the coupling member 21.

ネジ釘38は汎用品であり、先端部にのみネジ山が形成されており、主幹部材11の側面から結合部材21に向けて水平方向にねじ込まれる。なおネジ釘38のねじ込みが終わった状態では、縦断面図のように、ネジ山の全域は結合部材21の中に位置している。したがってネジ釘38を締め上げると、その頭部が主幹部材11を押圧して、主幹部材11と結合部材21の密着が維持される。このネジ釘38をねじ込むため、主幹部材11にはパイプ穴13と同心のネジ穴12を加工しており、結合部材21も同様にパイプ穴23の奥にネジ穴22を加工している。なお本図ではホゾパイプ36とネジ穴12、22が同心であるため、ホゾパイプ36の内径は縦断面図のように、ネジ釘38が余裕で通過できる大きさとしている。   The screw nail 38 is a general-purpose product, and has a thread formed only at the tip, and is screwed in the horizontal direction from the side surface of the main member 11 toward the coupling member 21. When the screw nails 38 are screwed in, the entire screw thread is located in the coupling member 21 as shown in the longitudinal sectional view. Therefore, when the screw nail 38 is tightened, the head of the screw nail 38 presses the main trunk member 11, and the close contact between the main trunk member 11 and the coupling member 21 is maintained. In order to screw this screw nail 38, a screw hole 12 concentric with the pipe hole 13 is machined in the main member 11, and the screw hole 22 is similarly machined in the back of the pipe hole 23 in the coupling member 21. In this figure, since the hozo pipe 36 and the screw holes 12 and 22 are concentric, the inner diameter of the hozo pipe 36 is such that the screw nail 38 can pass with a margin as shown in the longitudinal sectional view.

ネジ釘38のねじ込みを終えると、主幹部材11と結合部材21は一体化されるが、木材の経年変形によってネジ釘38の頭部が陥没していき、両部材の密着が維持できない恐れがある。またネジ釘38だけを用いた場合、その弾性変形によって曲げモーメントに対する剛性が低下する恐れがある。そこで本発明では、ネジ釘38とは別に補強軸31を使用して、これらの問題を解消している。補強軸31は、基本的にネジ釘38と同じものだが、ネジ山である凸条32をほぼ全域に形成しており、ねじ込みが終わった段階では、縦断面図のように凸条32が、主幹部材11と結合部材21の両方に食い込んでいる。したがって補強軸31は、主幹部材11と結合部材21の両方と強固に一体化しており、一方の部材に作用した荷重は速やかに他方の部材に伝達していく。また凸条32によって部材の経年変形が拘束され、強度の低下も発生しにくい。   When the screw nail 38 is screwed in, the main trunk member 11 and the coupling member 21 are integrated. However, the head of the screw nail 38 is depressed due to secular deformation of the wood, and there is a possibility that the close contact between the two members cannot be maintained. . Further, when only the screw nail 38 is used, there is a possibility that the rigidity against the bending moment is lowered due to the elastic deformation. Therefore, in the present invention, the reinforcing shaft 31 is used separately from the screw nails 38 to solve these problems. The reinforcing shaft 31 is basically the same as the screw nail 38, but has a ridge 32 that is a screw thread formed in almost the entire region, and when the screwing is finished, the ridge 32 is as shown in the longitudinal sectional view. It bites into both the main trunk member 11 and the coupling member 21. Therefore, the reinforcing shaft 31 is firmly integrated with both the main trunk member 11 and the coupling member 21, and the load acting on one member is quickly transmitted to the other member. Moreover, the aging 32 of the member is constrained by the ridges 32, and the strength is hardly lowered.

補強軸31をねじ込むため、主幹部材11と結合部材21には、下穴となる軸穴14、24をあらかじめ加工しておく。ただし補強軸31の凸条32の外径は、最大でも20mm程度であり、従来のラグスクリューに比べて小さい。したがって軸穴14、24は、持ち運び可能な小形ドリルで加工でき、必要に応じて現地で施工可能で柔軟性に優れている。なお補強軸31のねじ込み位置や使用数は自在であり、曲げモーメントに効率よく対抗するため、本図のように結合部材21の上下面の近傍に配置することもできる。そのほか、主幹部材11と結合部材21の姿勢は自在であり、主幹部材11が水平に敷設され、結合部材21が垂直に延びていても構わない。   In order to screw the reinforcing shaft 31, shaft holes 14 and 24 serving as pilot holes are processed in the main member 11 and the coupling member 21 in advance. However, the outer diameter of the ridge 32 of the reinforcing shaft 31 is about 20 mm at the maximum, which is smaller than that of a conventional lag screw. Therefore, the shaft holes 14 and 24 can be processed with a portable small drill, and can be constructed on site as required, and have excellent flexibility. In addition, the screwing position and the number of use of the reinforcing shaft 31 are arbitrary, and can be arranged in the vicinity of the upper and lower surfaces of the coupling member 21 as shown in FIG. In addition, the postures of the main trunk member 11 and the coupling member 21 are arbitrary, and the main trunk member 11 may be laid horizontally and the coupling member 21 may extend vertically.

図2は、図1に示す締結構造の施工途中の状態を示している。本発明による補強軸31をねじ込む際、主幹部材11と結合部材21の境界に隙間があると、以降、凸条32によってその隙間が保持され、強度などに悪影響を与える。そこで本図のように、施工の際は、まずホゾパイプ36を埋め込み、次にネジ釘38をねじ込んで、主幹部材11と結合部材21を密着させた後、主幹部材11の側面から補強軸31をねじ込んでいく。   FIG. 2 shows a state during construction of the fastening structure shown in FIG. When the reinforcing shaft 31 according to the present invention is screwed, if there is a gap at the boundary between the main trunk member 11 and the coupling member 21, the gap is retained by the ridges 32, which adversely affects the strength. Therefore, as shown in this figure, at the time of construction, first, the hozo pipe 36 is embedded, then the screw nail 38 is screwed in, the main member 11 and the coupling member 21 are brought into close contact, and then the reinforcing shaft 31 is attached from the side surface of the main member 11. Screw it in.

図3は、連結手段として連結金物41を使用した場合を示している。連結金物41は、金属板をプレス加工によってコの字状に成形したもので、主幹部材11の側面に接触する前板42と、結合部材21の端面に加工された溝25に差し込まれる二枚の横板43と、で構成されている。前板42には、円筒状に突出する丸ホゾ44が上下に並んで二個形成されており、これが主幹部材11の側面に加工されたホゾ穴17に嵌まり込むことで、垂直荷重が伝達される。また連結金物41は、ボルト48およびナット49によって主幹部材11と一体化されるため、丸ホゾ44の中心にはボルト48を挿通するための固定孔45が形成されている。さらに主幹部材11には、ホゾ穴17と同心で中孔16とナット穴15が加工されている。図のように連結金物41の横板43の間からボルト48を差し込んでいき、ボルト48の頭部を丸ホゾ44の中に収容して、ボルト48の先端にナット49を螺合して締め上げると、連結金物41は主幹部材11に密着した状態で固定される。なお前板42に形成されている丸ホゾ44は必要不可欠なものではなく、丸ホゾ44が省略され、前板42に直接固定孔45が形成されることもある。   FIG. 3 shows a case where a connecting hardware 41 is used as the connecting means. The connecting hardware 41 is formed by pressing a metal plate into a U-shape by pressing. Two pieces inserted into the front plate 42 that contacts the side surface of the main trunk member 11 and the groove 25 processed in the end surface of the coupling member 21. And a horizontal plate 43. The front plate 42 is formed with two circular bosses 44 that protrude in a cylindrical shape, and is fitted into the boss holes 17 formed on the side surface of the main member 11 so that a vertical load is transmitted. Is done. In addition, since the connecting hardware 41 is integrated with the main trunk member 11 by the bolt 48 and the nut 49, a fixing hole 45 for inserting the bolt 48 is formed at the center of the round flange 44. Further, the main member 11 is formed with an inner hole 16 and a nut hole 15 concentrically with the relief hole 17. As shown in the figure, the bolts 48 are inserted from between the horizontal plates 43 of the connecting hardware 41, the heads of the bolts 48 are accommodated in the round hoses 44, and the nuts 49 are screwed onto the ends of the bolts 48 and tightened. When raised, the connection hardware 41 is fixed in close contact with the main trunk member 11. The round bar 44 formed in the front plate 42 is not indispensable, and the round bar 44 may be omitted, and the fixing hole 45 may be directly formed in the front plate 42.

また連結金物41と結合部材21は、固定ピン50によって一体化される。連結金物41の横板43には、固定ピン50を挿通させるため、上下に二組のピン孔47が形成されており、その上には、固定ピン50を受け止めるためのピン溝46が形成されている。さらに結合部材21の側面には、ピン溝46の下部およびピン孔47と同心となる位置に、上下に三個の横孔27が加工されている。このうち、一番上の横孔27にあらかじめ固定ピン50を打ち込んでおき、連結金物41の上方から結合部材21を下降させていくと、横板43が溝25に差し込まれていき、やがて打ち込み済みの固定ピン50がピン溝46で受け止められ、結合部材21が仮置きされた状態になる。その後、残りの横孔27に固定ピン50を打ち込むと、連結金物41を介して主幹部材11と結合部材21が一体化される。   Further, the connecting hardware 41 and the coupling member 21 are integrated by a fixing pin 50. In order to allow the fixing pin 50 to be inserted, the pair of pin holes 47 are formed on the upper and lower sides of the horizontal plate 43 of the connecting metal 41, and a pin groove 46 for receiving the fixing pin 50 is formed thereon. ing. Further, on the side surface of the coupling member 21, three horizontal holes 27 are machined up and down at a position concentric with the lower portion of the pin groove 46 and the pin hole 47. Among these, when the fixing pin 50 is driven in advance in the uppermost horizontal hole 27 and the connecting member 21 is lowered from above the coupling metal 41, the horizontal plate 43 is inserted into the groove 25, and eventually driven. The already-fixed fixing pin 50 is received by the pin groove 46, and the coupling member 21 is temporarily placed. Thereafter, when the fixing pin 50 is driven into the remaining lateral hole 27, the main member 11 and the coupling member 21 are integrated with each other through the connection hardware 41.

次に、主幹部材11の側面から補強軸31をねじ込んでいくと、両部材は連結金物41と補強軸31によって締結されるため、剛性が向上するほか、補強軸31の凸条32によって木材の経年変形を拘束できる。さらに連結金物41に作用する負荷が軽減して、ボルト48やナット49や固定ピン50の緩みを抑制できる。なお補強軸31をねじ込むため、主幹部材11と結合部材21に軸穴14、24を加工しているほか、連結金物41の前板42を収容するため、結合部材21の端面中央に段部26を加工している。   Next, when the reinforcing shaft 31 is screwed in from the side surface of the main trunk member 11, both members are fastened by the connecting hardware 41 and the reinforcing shaft 31. Aging deformation can be constrained. Further, the load acting on the connecting hardware 41 is reduced, and loosening of the bolt 48, the nut 49, and the fixing pin 50 can be suppressed. In order to screw the reinforcing shaft 31, the shaft holes 14 and 24 are processed in the main member 11 and the coupling member 21, and the stepped portion 26 is provided at the center of the end surface of the coupling member 21 in order to accommodate the front plate 42 of the connection hardware 41. Is processed.

図4は、図3に示す締結構造の施工途中の状態を示している。主幹部材11と結合部材21の境界に挟み込まれた連結金物41は、ボルト48とナット49によって主幹部材11と一体化しており、さらに、連結金物41の丸ホゾ44が主幹部材11のホゾ穴17に嵌まり込んで垂直荷重を伝達している。また固定ピン50によって連結金物41と結合部材21が一体化しており、連結金物41を介して両部材が密着している。この状態で主幹部材11の側面から補強軸31をねじ込んで、凸条32を所定の領域に配置すると両部材の締結が強化され、ボルト48やナット49や固定ピン50に作用する負荷が軽減される。   FIG. 4 shows a state during construction of the fastening structure shown in FIG. The connecting hardware 41 sandwiched between the boundaries of the main trunk member 11 and the coupling member 21 is integrated with the main trunk member 11 by bolts 48 and nuts 49, and the circular hoses 44 of the connecting hardware 41 are also provided in the relief holes 17 of the main trunk member 11. The vertical load is transmitted by being fitted in. Further, the connecting metal 41 and the coupling member 21 are integrated by the fixing pin 50, and both members are in close contact via the connecting metal 41. In this state, when the reinforcing shaft 31 is screwed from the side surface of the main trunk member 11 and the ridges 32 are arranged in a predetermined region, the fastening of both members is strengthened, and the load acting on the bolt 48, the nut 49, and the fixing pin 50 is reduced. The

図5は、結合部材21が斜方向に配置されている場合に、本発明を適用したときの形態例を示している。主幹部材11と結合部材21は、直角に配置されている必要はなく、本図のように結合部材21が下向きに傾斜していても何ら問題はなく、本発明は、屋根や軒先など傾斜して配置される部材の締結にも適用可能である。結合部材21が傾斜しているため、補強軸31をねじ込むための軸穴14、24は、この傾斜と同方向に加工してある。ただしネジ釘38やホゾパイプ36は、垂直荷重を伝達できるよう水平方向に配置され、ネジ穴12、22などは水平方向に加工してある。なお図1ではネジ釘38とホゾパイプ36を上下に二組使用しているが、本図では形状の制約から一組だけを使用しており、補強軸31が主体となって締結部の強度を確保している。   FIG. 5 shows a form example when the present invention is applied when the coupling member 21 is arranged in the oblique direction. The main trunk member 11 and the coupling member 21 do not have to be arranged at right angles, and there is no problem even if the coupling member 21 is inclined downward as shown in the figure, and the present invention is inclined such as a roof or eaves. The present invention can also be applied to fastening of members arranged in this manner. Since the coupling member 21 is inclined, the shaft holes 14 and 24 for screwing the reinforcing shaft 31 are processed in the same direction as this inclination. However, the screw nails 38 and the hoso-pipe 36 are arranged in a horizontal direction so that a vertical load can be transmitted, and the screw holes 12 and 22 are machined in the horizontal direction. In FIG. 1, two pairs of screw nails 38 and hozo pipes 36 are used up and down. However, only one set is used in this figure because of the shape restriction, and the strength of the fastening portion is mainly composed of the reinforcing shaft 31. Secured.

図6は、補強軸31の詳細を示しており、図6(A)は大きさの概要で、図6(B)は凸条32の配置例である。補強軸31は、現地でのねじ込み作業を円滑に実施できるよう、図6(A)のように、凸条32の最大外径を20mm以下としている。ただし所定の強度を発揮できるよう、最低でも6mm程度は必要である。また凸条32は、図6(B)のように二つの領域に分割可能で、場合によっては三つ以上の領域に分割する場合もある。このような補強軸31を用いる場合、縦断面図のように、二つの領域に分割された凸条32のうち、一方の領域を主幹部材11の中に配置して、他方の領域を結合部材21の中に配置して、主幹部材11と結合部材21を一体化する。   FIG. 6 shows details of the reinforcing shaft 31, FIG. 6 (A) is an outline of the size, and FIG. 6 (B) is an arrangement example of the ridges 32. As shown in FIG. 6 (A), the reinforcing shaft 31 has a maximum outer diameter of 20 mm or less, as shown in FIG. However, at least about 6 mm is necessary so that the predetermined strength can be exhibited. Moreover, the protruding item | line 32 can be divided | segmented into two area | regions like FIG. 6 (B), and may be divided | segmented into three or more area | regions depending on the case. When such a reinforcing shaft 31 is used, as shown in the longitudinal sectional view, one of the ridges 32 divided into two regions is arranged in the main member 11, and the other region is connected to the coupling member. The main trunk member 11 and the coupling member 21 are integrated with each other.

11 主幹部材
12 ネジ穴(主幹部材側)
13 パイプ穴(主幹部材側)
14 軸穴(主幹部材側)
15 ナット穴
16 中孔
17 ホゾ穴
21 結合部材
22 ネジ穴(結合部材側)
23 パイプ穴(結合部材側)
24 軸穴(結合部材側)
25 溝
26 段部
27 横孔
31 補強軸
32 凸条
36 ホゾパイプ(連結手段)
38 ネジ釘(連結手段)
41 連結金物(連結手段)
42 前板
43 横板
44 丸ホゾ
45 固定孔
46 ピン溝
47 ピン孔
48 ボルト
49 ナット
50 固定ピン
11 Main member 12 Screw hole (Main member side)
13 Pipe hole (main trunk side)
14 Shaft hole (main member side)
15 Nut hole 16 Middle hole 17 Side hole 21 Joint member 22 Screw hole (joint member side)
23 Pipe hole (coupling member side)
24 Shaft hole (coupling member side)
25 Groove 26 Step 27 Horizontal hole 31 Reinforcing shaft 32 Projection 36 Hozo pipe (connecting means)
38 Screw nails (connecting means)
41 Connecting hardware (connecting means)
42 Front plate 43 Horizontal plate 44 Round hole 45 Fixing hole 46 Pin groove 47 Pin hole 48 Bolt 49 Nut 50 Fixing pin

Claims (3)

主幹部材(11)の側面と結合部材(21)の端面が接触する締結部に用いられ、主幹部材(11)と結合部材(21)は、連結手段によって一体化されており、
前記連結手段とは別に、側周面に螺旋状の凸条(32)を有しており且つ主幹部材(11)と結合部材(21)との境界を貫通するようにねじ込まれた補強軸(31)を備えており、
前記凸条(32)は、主幹部材(11)と結合部材(21)の両方を跨ぐように配置されていることを特徴とする部材の締結構造。
Used in the fastening portion where the side surface of the main trunk member (11) and the end face of the coupling member (21) are in contact, the main trunk member (11) and the coupling member (21) are integrated by the connecting means,
In addition to the connecting means, a reinforcing shaft (30) having a spiral ridge (32) on the side peripheral surface and screwed so as to penetrate the boundary between the main member (11) and the coupling member (21). 31)
The said protruding item | line (32) is arrange | positioned so that both the main trunk member (11) and a coupling member (21) may be straddled, The fastening structure of the member characterized by the above-mentioned.
前記連結手段は、主幹部材(11)の側面からねじ込まれて結合部材(21)に螺合するネジ釘(38)と、主幹部材(11)と結合部材(21)との境界を跨ぐように埋め込まれたホゾパイプ(36)と、であることを特徴とする請求項1記載の部材の締結構造。   The connecting means straddles the boundary between the main trunk member (11) and the coupling member (21) and the screw nail (38) screwed into the coupling member (21) by screwing from the side surface of the main trunk member (11). The fastening structure for a member according to claim 1, wherein the fastening structure is an embedded hozo pipe (36). 前記連結手段は、主幹部材(11)と結合部材(21)との境界に配置され、主幹部材(11)の側面に接触する前板(42)と、結合部材(21)に形成された溝(25)に差し込まれる横板(43)と、で構成される連結金物(41)であり、前記前板(42)には、ボルト(48)等を差し込むための固定孔(45)を備え、前記横板(43)には、結合部材(21)に打ち込まれる固定ピン(50)を挿通させるためのピン孔(47)を有することを特徴とする請求項1記載の部材の締結構造。   The connecting means is disposed at the boundary between the main trunk member (11) and the coupling member (21), and a front plate (42) contacting the side surface of the main trunk member (11), and a groove formed in the coupling member (21). (25) is a connecting hardware (41) composed of a horizontal plate (43), and the front plate (42) is provided with a fixing hole (45) for inserting a bolt (48) or the like. The member fastening structure according to claim 1, wherein the horizontal plate (43) has a pin hole (47) for inserting a fixing pin (50) driven into the coupling member (21).
JP2009182653A 2009-08-05 2009-08-05 Fastening structure for members Expired - Fee Related JP5554948B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422682A (en) * 2013-08-09 2013-12-04 南京工业大学 Self-rearranging mortise and tenon joint
JP2019127810A (en) * 2018-01-26 2019-08-01 株式会社日建設計 Joining structure of wood

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482103U (en) * 1990-11-27 1992-07-16
JPH10219847A (en) * 1997-02-03 1998-08-18 Grand Data Kk Bolted fixture reinforcing structure and building/ construction reinforcing structure using it
JPH10331260A (en) * 1997-05-29 1998-12-15 Yoshinori Okura Device for joining wooden construction member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482103U (en) * 1990-11-27 1992-07-16
JPH10219847A (en) * 1997-02-03 1998-08-18 Grand Data Kk Bolted fixture reinforcing structure and building/ construction reinforcing structure using it
JPH10331260A (en) * 1997-05-29 1998-12-15 Yoshinori Okura Device for joining wooden construction member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422682A (en) * 2013-08-09 2013-12-04 南京工业大学 Self-rearranging mortise and tenon joint
JP2019127810A (en) * 2018-01-26 2019-08-01 株式会社日建設計 Joining structure of wood

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