JP3818758B2

JP3818758B2 - Wood joints and connecting structures using them

Info

Publication number: JP3818758B2
Application number: JP31689197A
Authority: JP
Inventors: 義憲大倉
Original assignee: 義憲大倉
Priority date: 1997-11-18
Filing date: 1997-11-18
Publication date: 2006-09-06
Anticipated expiration: 2017-11-18
Also published as: JPH11148175A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、通し柱や梁、桁、もや、或いは土台等に代表される木材の長尺物を得るために、複数の短い木材を、その端面同士を突き合わせた状態で連結する際に使用する木材の接合金具とそれを利用する連結構造に関するものである。
【０００２】
【発明が解決しようとする課題】
木材の長尺物としては、連続する一本物の木材を用いることが外観上の観点から望ましいが、何分にも長くなると値段も特別割高になるという問題があるので、複数本の木材を一直線に連結したものが一般的に用いられている。ところで、複数本の木材を連結する場合は、木材の端部に継手を形成する必要がある。しかしながら、継手の加工は熟練度を要する厄介な作業であり、経験豊富な職人が慢性的に不足している現状では、複雑な加工を要しない連結構造が業界として求められている。
【０００３】
本発明はこのような実情に鑑みて成されたものであり、その目的とするところは、複数本の木材を、その端面同士で突き合わせた状態で連結して体裁の良い長尺物を得ることができ、しかも、木材の端部に施す加工の簡便化を図ることのできる木材の接合金具とそれを利用する連結構造を提供することである。
【０００４】
【課題を解決するための手段】
請求項１記載の本発明の木材の接合金具は、主木材と従木材を、その端面同士を突き合わせた状態で連結する為に、両木材内に収容された状態で締結手段によって固定されるものであって、第一接合部材と、第二接合部材と、両接合部材内に収容される状態で両者を結合するボルトとを備え、第一接合部材は主木材の端面に備わる長穴の奥側に嵌まり込む円柱形状をなし、その先端面にボルトの軸部を捩じ込む雌ネジ部を備え、第二接合部材は、主木材と従木材の端面の何れか一方に備わる凹部に嵌まり込む支持板と、支持板から突出し且つ従木材の端面に備わる係合溝に嵌まり込む接続板とからなり、該支持板に、前記長穴の入り口側に嵌まり込み且つボルトの頭部を収容するカップ状の突起部を、接続板とは反対側に突設し、突起部の底部にボルトの軸部を通す挿通孔を備えていることを特徴とする。なお、「主木材と従木材の端面の何れか一方に備わる凹部」とは、主木材の端面に凹部を有する場合と、従木材の端面に凹部を有する場合とを含む概念である。
【０００５】
また、第一接合部材と第二接合部材を結合するボルトの捩込み具合が緩んだり、或いは不十分な場合、第一接合部材に対して第二接合部材がボルトを中心にして回転可能な状態になり、ひいては、主木材と従木材の端面同士を突き合わせた状態が保持できなくなることもありうるので、それを阻止する為に請求項２記載の発明のように、支持板に主木材に係止する補助片を突設しても良い。
【０００６】
請求項３記載の本発明の木材の連結構造は、主木材と従木材をその端面同士を突き合わせた状態で連結する為のものであって、主木材の端面に備える長穴の奥側に、請求項１記載の接合金具の第一接合部材を嵌め込んだ状態で締結手段によって固定し、第一接合部材にボルトで結合した第二接合部材の支持板に備わる突起部を長穴の入り口側に嵌め込むと共に、該支持板を、主木材の端面若しくは従木材の端面の何れか一方に備わる凹部に嵌め込み、第二接合部材の接続板を従木材の端面に備える係合溝に嵌め込んだ状態で締結手段によって固定してあることを特徴とする。
【０００７】
請求項４記載の木材の連結構造のように、主木材の端面に備える長穴の奥側に、請求項２記載の接合金具の第一接合部材を嵌め込んだ状態で締結手段によって固定し、第一接合部材にボルトで結合した第二接合部材の支持板に備わる突起部を長穴の入り口側に嵌め込むと共に、該支持板を、主木材の端面若しくは従木材の端面の何れか一方に備わる凹部に嵌め込み、さらに、支持板に備わる補助片を主木材に係止し、第二接合部材の接続板を従木材の端面に備える係合溝に嵌め込んだ状態で締結手段によって固定しても良い。
【０００８】
【発明の実施の形態】
本発明による木材の連結構造の第一実施形態は図１〜図３に示すように、縦長の角材からなる主木材１と従木材２と、端面同士を突き合わせた主木材１と従木材２の両内部に収納される接合金具３と、接合金具３を主木材１並びに従木材２に夫々連結する締結手段９１とを備え、これら構成部品によって通し柱等の縦長の長尺物を形成したものである。
【０００９】
接合金具３は、その基部に第一接合部材４を備えると共に、その先部に第二接合部材５を備え、第一接合部材４と第二接合部材５をボルトＢで結合して一体化したものである。
【００１０】
第一接合部材４は主木材１の内部に嵌まり込んだ状態で締結手段９１によって固定されるもので、パイプ形状をなし、その先端面にボルトＢを捩じ込む雌ネジ部４１を備え、その周面の中間部に、締結手段９１用の複数の通孔４２を貫通する状態で設けてある。なお、これら通孔４２は、長手方向（図面では上下）に間隔を開けて、しかも貫通方向が直交する状態で形成してある。
【００１１】
第二接合部材５は従木材２の内部に嵌まり込んだ状態で締結手段９１によって固定されるもので、断面コ字型をなす鉄板であり、主木材１の端面に当接する支持板５１と、該支持板５１の両側から突出する二枚の接続板５２とからなる。
【００１２】
支持板５１は短冊形状をなし、その中央部に、ボルトＢの頭部を収納するカップ状の突起部５３を接続板５２とは反対方向に突出して設け、突起部５３の底部にボルトＢの軸部を通す為の挿通孔５４を備えている。また、突起部５３は主木材１の内部に埋め込むことによって、主木材１の端面に当接する支持板５１の位置を大まかに決定する役割もある。
【００１３】
両接続板５２は方形状をなし、その先部の対向箇所にＵ字型の受孔５５を、該接続板５２の突出方向に直交する方向（図面では横方向）に開口する状態で夫々備えると共に、中間部の対向箇所に複数の貫通孔５６を備えている。
【００１４】
主木材１は、その接合する端面中央部に、第一接合部材４並びに第二接合部材５の突起部５３を嵌め込む円柱形状の長穴１１を備え、四面からなる周面の各面に、長穴１１を経て反対面に貫通する複数の抜孔１２を、前記通孔４２に対応する箇所に設けてある。
【００１５】
従木材２はその端面に、第二接合部材５の両接続板５２を嵌め込む平行な一対の係合溝２１を、短手方向に沿って形成すると共に、支持板５１を嵌め込む凹部２２を、両係合溝２１の先部に連通する状態で形成し、さらに、四面からなる周面のうち係合溝２１の入ってない二面に、両係合溝２１を経て反対面に貫通する複数の取付孔２３を、前記第二接合部材５の受孔５５の奥部と貫通孔５６に対応する箇所に形成してある。両係合溝２１は、従木材２の幅を三等分する位置に形成することが、木材の強度的に望ましいと思われる。なお、主木材１と従木材２には切削工具だけで加工してあり、具体的に言えば、長穴や各孔はドリルで加工し、係合溝や凹部は丸ノコで加工してある。
【００１６】
締結手段９１は、ボルトＢ、ナットＮ、係止ピンＰからなる。なお、係止ピンＰは主木材１並びに従木材２の内部に収まる長さにしてある。
【００１７】
上記第一実施形態の組立て手順の一例を、三段階に分けて以下に説明する。
【００１８】
まず第一段階では、第一接合部材４を主木材１の長穴１１の奥側に嵌め込み、主木材１の抜孔１２と第一接合部材４の通孔４２を一致した状態で、ボルトＢ、ナットＮで固定し、且つ係止ピンＰを打ち込んで、第一接合部材４を長穴１１から脱出不能に固定する。
【００１９】
次に第二段階では、第二接合部材５の突起部５２を長穴１１の入り口側に埋め込んで、第二接合部材５の支持板５１を主木材１の端面に当接させ、さらに、主木材１と従木材２をその端面同士を突き合わせた際に係合溝２１に接続板５２が嵌め込まれるように支持板５１の向きを調整し、突起部５３の挿通孔５４から第一接合部材４の雌ネジ部４１にボルトＢを捩じ込んで第二接合部材５を第一接合部材４に結合し、それによって第二接合部材５の支持板５１を主木材４の端面に押し付けた状態に固定する。ところで、第一接合部材４と第二接合部材５をボルトＢで結合した際に、第一接合部材４の先端面と、第二接合部材５の突起部５３との間には、わずかな隙間が形成されており、これによって支持板５１は主木材１の端面に隙間なく接するようなる。なお、第一接合部材４と第二接合部材５を結合するボルトＢは、第二接合部材５がボルトＢの軸部を支点として回転不能となる程度に強く締め付ける。
【００２０】
最後に、第三段階では、第二接合部材５の接続板５２を従木材２の係合溝２１に嵌め込むと共に、支持板５１を凹部２２に嵌め込み、従木材２の取付孔２３を接続板５２の受孔５５の奥部と貫通孔５６に一致させ、貫通孔５６には取付孔２３から係止ピンＰを打ち込み、受孔５５には取付孔２３からボルトＢの軸部を挿通してナットＮを締付けることによって、接続板５２に従木材２を固定し、その結果、主木材１と従木材２を端面同士を突き合わせた状態で連結する。なお、従木材２は、受孔５５の奥部に一致する取付孔２３に、ボルトＢの軸部を挿通し、ナットＮを捩じ込んだ状態に予めしておけば、接続板５２を係合溝２１に嵌め込む際に、受孔５５の開口部からボルトＢの軸部を差し込むようにして取付けることができるので、その取付作業を簡便に行える。
【００２１】
本発明の木材の連結構造の第二実施形態は図４及び図５に示すように、横長の角材からなる主木材１と従木材２を、両内部に接合金具３を収納する状態で締結手段９１によって連結して梁や桁、もや、土台等の横長の長尺物を形成したことを特徴とするものである。
【００２２】
本発明の木材の連結構造の第三実施形態は図６及び図７に示すように、第一接合部材４に対して第二接合部材５が、両者を結合するボルトＢを中心にして回転可能とならないように、第二接合部材５の支持板５１には、四辺のうち接続板５２を突設していない辺の両縁部に、一対の補助片５７を、突起部５３と同一方向に突設し、補助片５７を主木材１に係止したものである。
【００２３】
さらに詳しく言えば、図６（イ）及び図７（イ）に示す両補助片５７は、主木材１を恰も挟む状態で主木材１の周面に当接するもので、各片５７をネジ止めして主木材１に固定してある。また、図６（ロ）及び図７（ロ）に示す両補助片５７は、支持板５１にＶ字型の切込みを入れて、その部分を折り曲げたもので、各片５７を主木材１の端面から内部に差し込んである。
【００２４】
なお、本発明の木材の連結構造は上記実施形態に限定されるものではない。例えば接合金具３の第二接合部材５が接続板５２を３枚以上備える形状であっても良く、この場合、接続板５２の枚数に合わせて従木材２に係合溝２１を形成する必要がある。
【００２５】
【発明の効果】
請求項１記載の本発明の木材の接合金具を使用すれば、主木材と従木材を、その端面同士を突き合わせた状態で締結手段によって連結することができ、しかも、接合金具を構成する三部材のうち、ボルトはその軸部が第一接合部材の雌ネジ部に、頭部が突起部内に収納され、また、第一接合部材は主木材の長穴内に収納され、第二接合部材はその支持板が主木材と従木材の何れか一方に備える凹部内に収納されると共に接続板が従木材の係合溝内に収納されるので、両木材内に接合金具が収まってすっきりと纏まった外観となり、一本物の長尺物と遜色のない良好な体裁となる。さらに、長穴や係合溝、凹部は、切削工具で形成することができるので、主従両木材の端部に施す加工を容易に行える。
【００２６】
請求項２記載の本発明の木材の接合金具を使用すれば、第一接合部材と第二接合部材を結合するボルトの捩込み具合が緩んだり、或いは不十分な場合でも、支持板から突設する補助片によって第二接合部材が主木材に係止されることから、主木材と従木材の端面同士を突き合わせた状態が保持される。
【図面の簡単な説明】
【図１】本発明の木材の連結構造の第一実施形態を示す分解斜視図である。
【図２】主木材に固定した接合金具に、従木材を連結する状態を示す斜視図である。
【図３】本発明の木材の連結構造の第一実施形態の要部を示す一部切欠正面図である。
【図４】本発明による木材の連結構造の第二実施形態の一例を示す斜視図である。
【図５】本発明による木材の連結構造の第二実施形態の一例を示す斜視図である。
【図６】（イ）、（ロ）
本発明の木材の連結構造の第三実施形態に用いる接合金具の一例を示す斜視図である。
【図７】（イ）、（ロ）
本発明の木材の連結構造の第三実施形態の一例を示す斜視図である。
【符号の説明】
１主木材
２従木材
３接合金具
４第一接合部材
５第二接合部材
１１長穴
２１係合溝
２２凹部
４１雌ネジ部
５１支持板
５２接続板
５３突起部
５７補助片
９１締結手段[0001]
BACKGROUND OF THE INVENTION
In the present invention, for example, in order to obtain a long piece of wood represented by a through pillar, a beam, a girder, a haze, or a base, a plurality of short pieces of wood are connected in a state where their end faces are butted together. The present invention relates to a wood joining bracket to be used and a connecting structure using the same.
[0002]
[Problems to be solved by the invention]
It is desirable to use a single continuous piece of wood as a long piece of wood from the viewpoint of appearance, but there is a problem that the price will be particularly expensive if it is too long. The one connected to is generally used. By the way, when connecting a plurality of pieces of wood, it is necessary to form a joint at the end of the wood. However, machining of joints is a troublesome work that requires skill, and in the current situation where experienced craftsmen are chronically lacking, a connecting structure that does not require complicated machining is required in the industry.
[0003]
The present invention has been made in view of such circumstances, and the object of the present invention is to obtain a long object having a good appearance by connecting a plurality of pieces of wood in a state where the end faces are butted together. In addition, the present invention is to provide a wood joining metal fitting that can simplify the processing applied to the end of the wood and a connecting structure using the same.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided the wood joining bracket according to the present invention, wherein the main wood and the subsidiary wood are fixed by the fastening means in a state of being accommodated in both woods in order to connect the end surfaces of the wood and the secondary wood. A first joining member, a second joining member, and a bolt that couples the two in a state of being accommodated in the joining members, the first joining member being located at the back of the long hole provided on the end surface of the main wood. It has a cylindrical shape that fits on the side, and has a female threaded part that screws the bolt shaft part into its tip, and the second joining member fits into a recess on either the end face of the main wood or secondary wood. A support plate that fits in, and a connection plate that protrudes from the support plate and fits into an engagement groove provided on the end face of the sub-wood, and fits into the support plate at the entrance side of the elongated hole and is the head of the bolt The cup-shaped protrusion that accommodates the protrusion protrudes on the side opposite to the connection plate, and the bottom of the protrusion Characterized in that it comprises an insertion hole through which the shank of the bolt. The “concave portion provided on one of the end surfaces of the main wood and the sub-wood” is a concept including a case where the end surface of the main wood has a concave portion and a case where the end surface of the sub-wood has a concave portion.
[0005]
In addition, when the screwing condition of the bolt that joins the first joining member and the second joining member is loose or insufficient, the second joining member can rotate around the bolt with respect to the first joining member. As a result, the state in which the end surfaces of the main wood and the sub-wood are in contact with each other may not be maintained. To prevent this, the support plate is engaged with the main wood as in the invention of claim 2. An auxiliary piece to be stopped may be provided.
[0006]
The connection structure of the wood of the present invention according to claim 3 is for connecting the main wood and the sub-wood in a state where the end faces thereof are butted against each other, and on the back side of the long hole provided on the end face of the main wood, A projection provided on a support plate of a second joining member, which is fixed by a fastening means in a state where the first joining member of the joining fitting according to claim 1 is fitted, and is coupled to the first joining member with a bolt, is provided at the entrance side of the elongated hole. And the support plate is fitted into a recess provided on either the end surface of the main wood or the end surface of the sub-wood, and the connection plate of the second joining member is inserted into the engagement groove provided on the end surface of the sub-wood. It is fixed by a fastening means in a state.
[0007]
As in the wood connection structure according to claim 4, the first joining member of the joining metal fitting according to claim 2 is fixed by a fastening means on the back side of the long hole provided in the end surface of the main wood, The protrusion provided on the support plate of the second joining member coupled to the first joining member with a bolt is fitted to the entrance side of the elongated hole, and the support plate is attached to either the end surface of the main wood or the end surface of the sub-wood. The auxiliary piece provided in the support plate is locked to the main wood, and the connection plate of the second joining member is fixed by the fastening means in the state of being fitted in the engagement groove provided on the end surface of the sub-wood. Also good.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 to 3, the first embodiment of the wood connection structure according to the present invention is composed of a main wood 1 and a secondary wood 2 made of vertically long square members, and a main wood 1 and a secondary wood 2 that are end-to-end. It is provided with a joining fitting 3 housed in both interiors, and fastening means 91 for connecting the joining fitting 3 to the main wood 1 and the secondary wood 2 respectively, and these components form a vertically long object such as a through pillar. is there.
[0009]
The joint fitting 3 includes the first joint member 4 at the base portion and the second joint member 5 at the tip portion thereof, and the first joint member 4 and the second joint member 5 are coupled by the bolt B and integrated. Is.
[0010]
The first joining member 4 is fixed by the fastening means 91 in a state of being fitted inside the main wood 1, has a pipe shape, and has a female screw portion 41 into which the bolt B is screwed at the tip surface thereof. A plurality of through holes 42 for the fastening means 91 are provided in the middle of the peripheral surface. These through holes 42 are formed in a state where the longitudinal direction (up and down in the drawing) is spaced apart and the through directions are orthogonal.
[0011]
The second joining member 5 is fixed by the fastening means 91 in a state in which it is fitted inside the secondary wood 2, is an iron plate having a U-shaped cross section, and a support plate 51 that contacts the end surface of the main wood 1. , And two connection plates 52 protruding from both sides of the support plate 51.
[0012]
The support plate 51 is in the shape of a strip, and a cup-shaped projection 53 that accommodates the head of the bolt B is provided in the center of the support plate 51 so as to protrude in the direction opposite to the connection plate 52. An insertion hole 54 for passing the shaft portion is provided. Further, the protrusion 53 has a role of roughly determining the position of the support plate 51 in contact with the end surface of the main wood 1 by being embedded in the main wood 1.
[0013]
Both connection plates 52 have a rectangular shape, and U-shaped receiving holes 55 are provided at opposite ends of the connection plates 52 so as to open in a direction perpendicular to the protruding direction of the connection plates 52 (lateral direction in the drawing). At the same time, a plurality of through holes 56 are provided at opposite locations of the intermediate portion.
[0014]
The main wood 1 is provided with a cylindrical elongated hole 11 into which the projections 53 of the first joining member 4 and the second joining member 5 are fitted at the center of the end face to be joined, and on each surface of the circumferential surface composed of four faces, A plurality of through holes 12 penetrating the opposite surface through the long holes 11 are provided at locations corresponding to the through holes 42.
[0015]
The secondary wood 2 is formed with a pair of parallel engaging grooves 21 for fitting both connection plates 52 of the second joining member 5 along the short side direction on the end surface thereof, and a recess 22 for fitting the support plate 51. In addition, it is formed in a state of communicating with the front portions of both engagement grooves 21, and further penetrates through two engagement grooves 21 to the opposite surface through two engagement grooves 21 in the four circumferential surfaces. A plurality of mounting holes 23 are formed at locations corresponding to the inner part of the receiving hole 55 of the second joining member 5 and the through hole 56. It seems that it is desirable in terms of the strength of the wood to form both the engaging grooves 21 at a position where the width of the secondary wood 2 is divided into three equal parts. In addition, the main wood 1 and the secondary wood 2 are processed only with a cutting tool. Specifically, the long hole and each hole are processed with a drill, and the engagement groove and the concave portion are processed with a circular saw. .
[0016]
The fastening means 91 includes a bolt B, a nut N, and a locking pin P. The locking pin P has a length that fits inside the main wood 1 and the sub-wood 2.
[0017]
An example of the assembly procedure of the first embodiment will be described below in three stages.
[0018]
First, in the first stage, the first joining member 4 is fitted into the back side of the long hole 11 of the main wood 1, and the bolt B, The first joining member 4 is fixed so that it cannot escape from the long hole 11 by fixing with a nut N and driving a locking pin P.
[0019]
Next, in the second stage, the protrusion 52 of the second joining member 5 is embedded in the entrance side of the elongated hole 11, the support plate 51 of the second joining member 5 is brought into contact with the end surface of the main wood 1, The orientation of the support plate 51 is adjusted so that the connection plate 52 is fitted into the engagement groove 21 when the end surfaces of the wood 1 and the secondary wood 2 are butted together, and the first joining member 4 is inserted from the insertion hole 54 of the projection 53. The bolt B is screwed into the female screw portion 41 to couple the second joining member 5 to the first joining member 4, thereby pressing the support plate 51 of the second joining member 5 against the end face of the main wood 4. Fix it. By the way, when the 1st joining member 4 and the 2nd joining member 5 are couple | bonded with the volt | bolt B, between the front end surface of the 1st joining member 4 and the projection part 53 of the 2nd joining member 5, there is a little clearance. As a result, the support plate 51 comes into contact with the end face of the main wood 1 without a gap. Note that the bolt B that joins the first joining member 4 and the second joining member 5 is tightened so strongly that the second joining member 5 is not rotatable about the shaft portion of the bolt B.
[0020]
Finally, in the third stage, the connection plate 52 of the second joining member 5 is fitted into the engagement groove 21 of the subsidiary wood 2, the support plate 51 is fitted into the recess 22, and the attachment hole 23 of the subsidiary wood 2 is connected to the connection plate. 52, the inner portion of the receiving hole 55 is aligned with the through hole 56, the locking pin P is driven into the through hole 56 from the mounting hole 23, and the shaft portion of the bolt B is inserted into the receiving hole 55 from the mounting hole 23. By tightening the nut N, the wood 2 is fixed in accordance with the connecting plate 52, and as a result, the main wood 1 and the secondary wood 2 are connected in a state where the end surfaces are butted. Note that the secondary wood 2 is engaged with the connection plate 52 if the shaft B of the bolt B is inserted into the mounting hole 23 coinciding with the back of the receiving hole 55 and the nut N is screwed in advance. Since it can be attached by inserting the shaft portion of the bolt B from the opening portion of the receiving hole 55 when fitting into the mating groove 21, the attaching operation can be performed easily.
[0021]
As shown in FIGS. 4 and 5, the second embodiment of the wood connection structure of the present invention is a fastening means in a state in which the main wood 1 and the secondary wood 2 made of horizontally long square members are housed in the joint metal fitting 3 inside. It is characterized in that a horizontally long long object such as a beam, a girder, a haze, or a base is formed by being connected by 91.
[0022]
As shown in FIGS. 6 and 7, in the third embodiment of the wood connection structure of the present invention, the second joining member 5 can rotate with respect to the first joining member 4 around a bolt B that couples them. The support plate 51 of the second joining member 5 is provided with a pair of auxiliary pieces 57 in the same direction as the projections 53 on both edges of the sides where the connection plate 52 does not project. It protrudes and the auxiliary piece 57 is locked to the main wood 1.
[0023]
More specifically, both auxiliary pieces 57 shown in FIG. 6 (a) and FIG. 7 (a) are in contact with the peripheral surface of the main wood 1 with the main wood 1 sandwiched therebetween, and each piece 57 is screwed. And fixed to the main wood 1. Further, both auxiliary pieces 57 shown in FIGS. 6 (b) and 7 (b) are obtained by making V-shaped cuts in the support plate 51, and bending the portions. It is inserted inside from the end face.
[0024]
The wood connection structure of the present invention is not limited to the above embodiment. For example, the second joining member 5 of the joint fitting 3 may have a shape including three or more connection plates 52. In this case, it is necessary to form the engagement grooves 21 in the sub-wood 2 in accordance with the number of the connection plates 52. is there.
[0025]
【The invention's effect】
If the wood joining metal fitting of the present invention according to claim 1 is used, the main wood and the sub wood can be connected by the fastening means in a state where the end faces thereof are butted together, and the three members constituting the joining metal fitting Among them, the bolt has a shaft portion accommodated in the female screw portion of the first joining member, a head portion accommodated in the protrusion, a first joining member accommodated in the elongated hole of the main wood, and the second joining member The support plate is housed in the recess provided in either the main wood or the sub-wood, and the connection plate is housed in the engaging groove of the sub-wood, so that the joint fittings fit in both the wood and are neatly organized. Appearance becomes a good appearance comparable to a single long object. Furthermore, since the long hole, the engagement groove, and the concave portion can be formed with a cutting tool, it is possible to easily perform the processing applied to the ends of the main and sub wood.
[0026]
If the wood joining bracket of the present invention according to claim 2 is used, even if the screwing condition of the bolt for joining the first joining member and the second joining member is loosened or insufficient, it protrudes from the support plate. Since the second joining member is locked to the main wood by the auxiliary piece, the state in which the end surfaces of the main wood and the sub-wood are abutted with each other is maintained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of a wood connection structure of the present invention.
FIG. 2 is a perspective view showing a state in which subordinate wood is connected to a joint fitting fixed to main wood.
FIG. 3 is a partially cutaway front view showing the main part of the first embodiment of the wood connection structure of the present invention.
FIG. 4 is a perspective view showing an example of a second embodiment of a wood connection structure according to the present invention.
FIG. 5 is a perspective view showing an example of a second embodiment of a wood connection structure according to the present invention.
[Fig. 6] (A), (B)
It is a perspective view which shows an example of the joining metal fitting used for 3rd embodiment of the connection structure of the wood of this invention.
FIG. 7 (a), (b)
It is a perspective view which shows an example of 3rd embodiment of the connection structure of the timber of this invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main wood 2 Secondary wood 3 Joining metal fitting 4 1st joining member 5 2nd joining member 11 Long hole 21 Engaging groove 22 Recess 41 Female thread part 51 Support plate 52 Connection board 53 Protrusion part 57 Auxiliary piece 91 Fastening means

Claims

主木材（１）と従木材（２）を、その端面同士を突き合わせた状態で連結する為に、両木材（１，２）内に収容された状態で締結手段（９１）によって固定される接合金具（３）であって、
第一接合部材（４）と、第二接合部材（５）と、両接合部材（４，５）内に収容される状態で両者（４，５）を結合するボルト（Ｂ）とを備え、
第一接合部材（４）は主木材（１）の端面に備わる長穴（１１）の奥側に嵌まり込む円柱形状をなし、その先端面にボルト（Ｂ）の軸部を捩じ込む雌ネジ部（４１）を備え、
第二接合部材（５）は、主木材（１）と従木材（２）の端面の何れか一方に備わる凹部（２２）に嵌まり込む支持板（５１）と、支持板（５１）から突出し且つ従木材（２）の端面に備わる係合溝（２１）に嵌まり込む接続板（５２）とからなり、該支持板（５１）に、前記長穴（１１）の入り口側に嵌まり込み且つボルト（Ｂ）の頭部を収容するカップ状の突起部（５３）を、接続板（５２）とは反対側に突設し、突起部（５３）の底部にボルト（Ｂ）の軸部を通す挿通孔（５４）を備えていることを特徴とする木材の接合金具。Joining which is fixed by the fastening means (91) in a state of being accommodated in both woods (1, 2) in order to connect the main wood (1) and the secondary wood (2) in a state in which their end faces are butted together. Metal fitting (3),
A first joining member (4), a second joining member (5), and a bolt (B) for joining both (4, 5) in a state of being accommodated in both joining members (4, 5),
The first joining member (4) has a cylindrical shape that is fitted into the back side of the long hole (11) provided on the end face of the main wood (1), and a female part in which the shaft portion of the bolt (B) is screwed into the front end face. A screw part (41),
The second joining member (5) protrudes from the support plate (51), the support plate (51) fitted into the recess (22) provided on either one of the end surfaces of the main wood (1) and the sub-wood (2). And a connecting plate (52) that fits into the engaging groove (21) provided on the end face of the sub-timber (2), and fits into the support plate (51) on the entrance side of the slot (11). A cup-shaped protrusion (53) that accommodates the head of the bolt (B) is provided on the opposite side of the connection plate (52), and the shaft of the bolt (B) is provided at the bottom of the protrusion (53). A wood fitting having an insertion hole (54) for passing through the wood.

前記支持板（５１）に主木材（１）に係止する補助片（５７）を突設してあることを特徴とする請求項１記載の木材の接合金具。The wood joining bracket according to claim 1, characterized in that an auxiliary piece (57) to be engaged with the main wood (1) is projected on the support plate (51).

主木材（１）と従木材（２）をその端面同士を突き合わせた状態で連結する為の木材の連結構造であって、
主木材（１）の端面に備える長穴（１１）の奥側に、請求項１記載の接合金具（３）の第一接合部材（４）を嵌め込んだ状態で締結手段（９１）によって固定し、第一接合部材（４）にボルト（Ｂ）で結合した第二接合部材（５）の支持板（５１）に備わる突起部（５３）を長穴（１１）の入り口側に嵌め込むと共に、該支持板（５１）を、主木材（１）の端面若しくは従木材（２）の端面の何れか一方に備わる凹部（２２）に嵌め込み、第二接合部材（５）の接続板（５２）を従木材（２）の端面に備える係合溝（２１）に嵌め込んだ状態で締結手段（９１）によって固定してあることを特徴とする木材の連結構造。It is a wood connection structure for connecting the main wood (1) and the sub wood (2) in a state in which their end faces are in contact with each other,
Fixed by fastening means (91) in a state in which the first joining member (4) of the joint fitting (3) according to claim 1 is fitted into the back side of the long hole (11) provided on the end face of the main wood (1). The protrusion (53) provided on the support plate (51) of the second joining member (5) joined to the first joining member (4) with the bolt (B) is fitted into the entrance side of the elongated hole (11). The support plate (51) is fitted into the recess (22) provided on either the end surface of the main wood (1) or the end surface of the sub-wood (2), and the connection plate (52) of the second joining member (5). Is fixed by fastening means (91) in a state of being fitted in an engaging groove (21) provided on the end face of the subsidiary wood (2).

主木材（１）と従木材（２）をその端面同士を突き合わせた状態で連結する為の木材の連結構造であって、
主木材（１）の端面に備える長穴（１１）の奥側に、請求項２記載の接合金具（３）の第一接合部材（４）を嵌め込んだ状態で締結手段（９１）によって固定し、第一接合部材（４）にボルト（Ｂ）で結合した第二接合部材（５）の支持板（５１）に備わる突起部（５３）を長穴（１１）の入り口側に嵌め込むと共に、該支持板（５１）を、主木材（１）の端面若しくは従木材（２）の端面の何れか一方に備わる凹部（２２）に嵌め込み、さらに、支持板（５１）に備わる補助片（５７）を主木材（１）に係止し、第二接合部材（５）の接続板（５２）を従木材（２）の端面に備える係合溝（２１）に嵌め込んだ状態で締結手段（９１）によって固定してあることを特徴とする木材の連結構造。It is a wood connection structure for connecting the main wood (1) and the sub wood (2) in a state in which their end faces are in contact with each other,
Fixed by fastening means (91) in a state where the first joining member (4) of the joint fitting (3) according to claim 2 is fitted in the back side of the long hole (11) provided on the end face of the main wood (1). The protrusion (53) provided on the support plate (51) of the second joining member (5) joined to the first joining member (4) with the bolt (B) is fitted into the entrance side of the elongated hole (11). The support plate (51) is fitted into the recess (22) provided on either the end surface of the main wood (1) or the end surface of the sub-wood (2), and the auxiliary piece (57) provided on the support plate (51) is further provided. ) Is fastened to the main wood (1), and the connecting means (52) of the second joining member (5) is fitted in the engagement groove (21) provided on the end face of the sub-wood (2). 91) A wood connection structure characterized by being fixed according to 91).