JP3548964B2

JP3548964B2 - Joining structure of pillars, pillars and bases, and tools for wooden buildings

Info

Publication number: JP3548964B2
Application number: JP2002140152A
Authority: JP
Inventors: 清司細川
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-15
Filing date: 2002-05-15
Publication date: 2004-08-04
Anticipated expiration: 2022-05-15
Also published as: JP2003328439A

Description

【０００１】
【発明の属する技術分野】
本発明は木造建築物における梁や桁等の横架材の接合構造、柱・土台接合構造およびその用具に関する。
【０００２】
【従来の技術】
【０００３】
木造建築物における梁や桁等の横架材と柱との接合構造として、たとえば、本出願人の提案した、特許第２７３９４６２号公報に掲載されているものがある。
それは、図１２，１３により説明すると次のとおりのものである。
【０００４】
Ａは、柱Ｂと梁（横架材）Ｃとを接合する接合金具主体で、それは長方形状の底板１と、その上面に中心線に沿って垂直に設立され、中央部に横長方形状の楔窓孔２を開設した、同じく長方形状の芯板３と、それら底板１および芯板３の長手方向一側端部に起立する、ボルト挿通孔４……を穿設した取付け板５とからなる。
【０００５】
６は、柱Ｂの一側面の梁接合部位に形成した凹処、７……はその凹処６内に反対面に貫通させて穿設してあるボルト挿通孔であり、上記接合金具主体Ａは、この凹処６に取付け板５を嵌合させ、ボルト挿通孔４……および７……に挿通したボルト８……にナット８’……を螺合緊締することによって柱Ｂに固定される。
【０００６】
９は、梁Ｃの端部に設けられた嵌合空処で、それは、上記接合金具主体Ａの芯板３に嵌合する大きさと形状の、該梁Ｃの上面および接合面に開口した縦溝１０と、上記接合金具主体Ａの底板１に嵌合する大きさと形状の、該梁Ｃの下面に開口した扁平凹処１１と、上記縦溝１０を貫通し、梁Ｃの両側面に開口した楔挿通横孔１２とを連続させてなる。
【０００７】
この梁Ｃは、上記柱Ｂに固定された接合金具主体Ａの底板１の上に、その端部を乗載した状態、すなわち、該接合金具主体Ａに、その嵌合空処９を嵌合させた状態で、ほぼ対応一致した楔窓孔２と楔挿通横孔１２とに、楔案内片１３と座金部材たるワッシャ１４を嵌入し、その後、木製の打込み楔１５を打ち込むことによって上記柱Ｂに固定されるようになっている。
【０００８】
【発明が解決しようとする課題】
したがって、梁Ｃを柱Ｂに接合する際には、まず楔窓孔２および楔挿通横孔１２の一側に、楔案内片１３とワッシャ１４を嵌入させておき、その後、そこに形成された余裕空間に打込み楔１５を打ち込むという手順を経る必要があり、しかも、打込み楔１５の打ち込みの際に上記ワッシャ１４がずれないようにしなければならないので、接合作業が煩雑である。
また、この接合構造は、上記打込み楔１５を緊密に打ち込んで梁Ｃを柱Ｂの側面に常時圧接させ、これらを互いに固定したものであり、梁が柱に対して揺動・回動できる余裕はなく、地震等の際に外部から加わる力を緩衝するような構造にはなっていないから、力が加わったときに壊れるおそれがある。
【０００９】
そこで、本発明は、容易に完成することができるとともに、地震等により力が加わっても壊れない横架材の接合構造、柱・土台接合構造およびその用具を提供することを目的とする。
【００１０】
【課題を解決するための手段】
請求項１に係る本発明木造建築物の横架材接合構造は次の構成からなる。
（１）接合金具主体２０，６２’，７０”が、底板２１，６０，７３……と、その上面に設立した、窓孔２４，６２，６２，７２……を開設してなる芯板２２，６１，７０，７０’とを備えている。
（２）打込み部材２６……が、板バネ２７を、膨らみを外方に向けた状態で板バネ保持枠２８の一側面の板バネ保持スペース３２に挿入するとともに、該板バネ保持枠２８の他側面に嵌合溝３４を形成してなる。
（３）横架材４１……が、その端部４１’に、上記接合金具主体２０，６２’，７０”を受入する縦溝４４および扁平凹処４５と、上記縦溝４４を貫通して該横架材４１の両側面に開口する打込み部材受入孔４６とを連続させてなる嵌合空処４７を備えている。
（４）上記横架材４１……が、上記嵌合空処４７……を上記接合金具主体２０，６２’，７０”に嵌合させた状態でその底板２１，６０，７３……上に乗載され、上記打込み部材２６……が、ほぼ一致した上記打込み部材受入孔４６……と上記窓孔２４，６２，６２，７２……とに、上記板バネ２７……の側を該横架材４１……の接合面４８……側に向け、該板バネ２７……を上記打込み部材受入孔４６……の内壁面４６’……に押圧させながら打ち込まれ、該打込み部材受入孔４６……内に突出している上記窓孔２４，６２，６２，７２……の縁部２４’……に上記嵌合溝３４……を嵌合させて、上記内壁面４６’……と上記縁部２４’……との間に挟持されている。
【００１１】
請求項２に係る本発明木造建築物の横架材接合構造は次の構成からなる。
（１）接合金具主体２０が、底板２１と、その上面にそれの中心線に沿って設立した、中央部に窓孔２４を開設してなる芯板２２と、それら両板２１，２２の一側端部に起立する取付け板２３とからなる。
（２）打込み部材２６が、鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなる。
（３）横架材４１が、その端部４１’に、上記接合金具主体２０を受入する大きさと形状の縦溝４４および扁平凹処４５と、上記縦溝４４を貫通して該横架材４１の両側面に開口する打込み部材受入孔４６とを連続させてなる嵌合空処４７を備えている。
（４）上記接合金具主体２０が取付け板２５によって柱４０に取り付けられるとともに、上記横架材４１が、上記嵌合空処４７を上記接合金具主体２０に嵌合させた状態でその底板２１上に乗載され、上記打込み部材２６が、ほぼ一致した上記打込み部材受入孔４６と上記窓孔２４とに、上記板バネ２７の側を該横架材４１の接合面４８側に向け、該板バネ２７を上記打込み部材受入孔４６の内壁面４６’に押圧させながら打ち込まれ、該打込み部材受入孔４６内に突出している上記窓孔２４の縁部２４’に上記嵌合溝３４を嵌合させて、上記内壁面４６’と上記縁部２４’との間に挟持され、上記板バネ２７が上記内壁面４６’を押圧することにより、上記横架材４１の接合面４８が上記柱４０の側面に圧接されている。
【００１２】
請求項３に係る本発明木造建築物の横架材接合構造は次の構成からなる。
（１）接合金具主体６２’が、長方形状の底板６０の中心線に沿って設立した芯板６１の左右２箇所に窓孔６２，６２を開設してなる左右対称形状のものである。
（２）打込み部材２６，２６が、鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなる。
（３）横架材４１，４１が、その端部４１’に、上記接合金具主体６２’の半分を受入する大きさと形状の縦溝４４および扁平凹処４５と、上記縦溝４４を貫通して該横架材４１の両側面に開口する打込み部材受入孔４６とを連続させてなる嵌合空処４７を備えている。
（４）上記横架材４１，４１が、上記嵌合空処４７，４７を上記接合金具主体６２’に嵌合させた状態でその底板６０，６０上に乗載され、上記打込み部材２６，２６が、ほぼ一致した上記打込み部材受入孔４６と上記窓孔６２，６２とに、上記板バネ２７，２７の側を該横架材４１，４１の接合面４８，４８側に向け、該板バネ２７，２７を上記打込み部材受入孔４６，４６の内壁面４６’，４６’に押圧させながら打ち込まれ、該打込み部材受入孔４６，４６内に突出している上記窓孔６２，６２の縁部に上記嵌合溝３４，３４を嵌合させて、上記内壁面４６’，４６’と上記縁部２４’，２４’との間に挟持され、上記板バネ２７，２７が上記内壁面４６’，４６’を押圧することにより、上記横架材４１，４１の接合面４８，４８が互いに圧接されている。
【００１３】
請求項４に係る本発明木造建築物の横架材接合構造は次の構成からなる。
（１）接合金具主体７０”が、十字に組んだ２枚の芯板７０，７０’を、その両端部を突出させた状態で柱４０’の内部に嵌合収納するとともに、上記各芯板７０，７０’の突出部分の中央に窓孔７２……を開設し、それらの突出部分の下端に底板７３……を取り付けてなる。
（２）打込み部材２６……が、鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなる。
（３）横架材４１……が、その端部４１’に、上記接合金具主体７０”の突出部分を受入する大きさと形状の縦溝４４および扁平凹処４５と、上記縦溝４４を貫通して該横架材４１の両側面に開口する打込み部材受入孔４６とを連続させてなる嵌合空処４７を備えている。
（４）上記横架材４１……が、上記嵌合空処４７……を上記接合金具主体７０”に嵌合させた状態でその底板７３……上に乗載され、上記打込み部材２６……が、ほぼ一致した上記打込み部材受入孔４６……と上記窓孔７２……とに、上記板バネ２７……の側を該横架材４１……の接合面４８……側に向け、上記板バネ２７……を上記打込み部材受入孔４６……の内壁面４６’……に押圧させながら打ち込まれ、該打込み部材受入孔４６……内に突出している上記窓孔７２……の縁部に上記嵌合溝３４……を嵌合させて、上記内壁面４６’……と上記縁部２４’……との間に挟持され、上記板バネ２７……が上記内壁面４６’……を押圧することにより上記横架材４１……の接合面４８……が上記柱４０’の側面に圧接されている。
【００１４】
請求項５に係る本発明木造建築物の横架材接合用具は、
（１）底板２１と、その上面にそれの中心線に沿って設立した、中央部に窓孔２４を開設してなる芯板２２と、それら両板２１，２２の一側端部に起立する取付け板２３とからなる接合金具主体２０と、
（２）鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなり、上記窓孔２４に打ち込まれる打込み部材２６とからなる。
【００１５】
請求項６に係る本発明木造建築物の横架材接合用具は、
（１）長方形状の底板６０の中心線に沿って設立した芯板６１の左右２箇所に窓孔６２，６２を開設してなる左右対称形状の接合金具主体６２’と、
（２）鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなり、上記窓孔６２に打ち込まれる打込み部材２６，２６とからなる。
【００１６】
請求項７に係る本発明木造建築物の横架材接合用具は、
（１）十字に組んだ２枚の芯板７０，７０’を、その両端部を突出させた状態で柱４０’に嵌合収納するとともに、上記各芯板７０，７０’の突出部分の中央に窓孔７２……を開設し、それらの突出部分の下端に底板７３……を取り付けてなる接合金具主体７０”と、
（２）鋼製の方形板を円弧状に湾曲させてなる板バネ２７を、板バネ保持枠２８の一側面の、中央を膨らませた湾曲面３１と、その湾曲面３１の左右端から該湾曲面３１の中央外方に向けて突出させた引掛片２９，３０との間に囲繞形成される板バネ保持スペース３２に、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠２８の他側面に左右に斜面３３’，３３’を有する凸部３３を突出させ、その頂部に嵌合溝３４を形成してなり、上記窓孔７２に打ち込まれる打込み部材２６……とからなる。
【００１７】
請求項８に係る本発明木造建築物の柱・土台接合構造は次の構成からなる。
（１）接合金具主体が、中央部に窓孔を開設した芯板の一側端を、取付け板の中心線に沿わせて固着してなる。
（２）打込み部材２６が、鋼製の方形板を円弧状に湾曲させてなる板バネを、板バネ保持枠の一側面の、中央を膨らませた湾曲面と、その湾曲面の左右端から該湾曲面の中央外方に向けて突出させた引掛片との間に囲繞形成される板バネ保持スペースに、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠の他側面に左右に斜面を有する凸部を突出させ、その頂部に嵌合溝を形成してなる。
（３）柱が、その下端部に、上記接合金具主体を受入する大きさと形状の縦溝と、その縦溝を貫通して該横架材の両側面に開口する打込み部材受入孔とを連続させてなる嵌合空処を備えている。
（４）上記接合金具主体が、取付け板によって、芯板を垂直に起立させた状態で土台の上面に取り付けられるとともに、上記柱が、上記嵌合空処を上記接合金具主体に嵌合させた状態で、該土台上に乗載され、上記打込み部材２６が、ほぼ一致した上記打込み部材受入孔と上記窓孔とに、上記板バネの側を該柱の下端面側に向け、該板バネを上記打込み部材受入孔の内壁面に押圧させながら打ち込まれ、該打込み部材受入孔内に突出している上記窓孔の縁部に上記嵌合溝を嵌合させて、上記内壁面と上記縁部との間に挟持され、上記板バネが上記内壁面を押圧することにより、上記柱の下端面が上記土台の上面に圧接されている。
【００１８】
請求項９に係る本発明木造建築物の柱・土台接合用具は、
（１）中央部に窓孔を開設した芯板の一側端を、取付け板の中心線に沿わせて固着してなる接合金具主体と、
（２）鋼製の方形板を円弧状に湾曲させてなる板バネを、板バネ保持枠の一側面の、中央を膨らませた湾曲面と、その湾曲面の左右端から該湾曲面の中央外方に向けて突出させた引掛片との間に囲繞形成される板バネ保持スペースに、膨らみを外方に向けた状態で挿入するとともに、該板バネ保持枠の他側面に左右に斜面を有する凸部を突出させ、その頂部に嵌合溝を形成してなり、上記窓孔に打ち込まれる打込み部材２６とからなる。
【００１９】
【発明の実施の形態】
以下には、本発明を柱と梁（横架材）との接合に適用した第１実施形態について図１〜９を参照し詳しく述べる。
【００２０】
２０は、接合金具主体で、それは、長方形状の底板２１と、その上面にそれの中心線に沿って設立した、同じく長方形状の芯板２２と、これら両板２１，２２の一側端部に起立する取付け板２３とからなる。
上記芯板２２には、中央部に方形状の窓孔２４を開設してあり、また、上記取付け板２３には、上記芯板２２の両側に位置する部分に、それぞれ所要個数のボルト挿通孔２５……を穿設してある。
【００２１】
２６は、打込み部材で、それは、板バネ２７と板バネ保持枠２８とからなる。板バネ２７は、鋼製の方形板を円弧状に湾曲させてなるものである。
板バネ保持枠２８の一側面には、中央を膨らませた湾曲面３１が形成されている。その湾曲面３１の左右端には、該湾曲面３１の中央外方に向けて突出するとともに、その突出した各先端に切欠き２９”，３０”を形成し略コ字状および逆略コ字状とした引掛片２９，３０が互いに対向させて設けられていて、上記湾曲面３１と該引掛片２９，３０との間に板バネ保持スペース３２が囲繞形成されている。
【００２２】
上記引掛片２９は、引掛片３０よりも大きく突出しており、したがってまた、該引掛片２９と湾曲面３１との間に形成される溝２９’は、引掛片３０と湾曲面３１との間に形成される溝３０’よりも深くなっている。
また、上記溝２９’，３０’の上下端は端板３５……によって塞がれている。
【００２３】
上記板バネ２７は、まずその一端を深い方の溝２９’に挿入し、次に他端を浅い方の溝３０’に押し込んで挿入することによって、膨らみを外方に向けた状態で、上記板バネ保持スペース３２に保持される。湾曲面３１の曲率は、板バネ２７の曲率よりも小さくなっており、該湾曲面３１は、上記板バネ２７がそこに当接するまで押圧されたときに、それ以上変形しないようにするためのストッパーとして働く。
【００２４】
一方、板バネ保持枠２８の他側面の中央部には、左右に斜面３３’，３３’を有する凸部３３が突出していて、その凸部３３の頂部には嵌合溝３４が形成されている。
【００２５】
４０は柱で、その一側面には上記接合金具主体２０の取付け板２３をちょうど嵌合する大きさと深さの凹部４２が形成してあり、その凹部４２内には、上記取付け板２３のボルト挿通孔２５……と対応する配置で、反対面に貫通したボルト挿通孔４３……を穿設してある。
【００２６】
４１は上記柱４０に接合しようとする梁で、その端部４１’には、上記接合金具主体２０の芯板２２を受入する大きさと形状で、該梁４１の上面および接合面４８に開口する縦溝４４と、上記接合金具主体２０の底板２１を受入する大きさと形状で、該梁４１の下面および接合面４８に開口する扁平凹処４５と、上記縦溝４４を貫通して該梁４１の両側面に開口する打込み部材受入孔４６とを連続させてなる嵌合空処４７を備えている。
また、接合面４８には、柱４０に挿通され接合金具主体２０を固定している後記のボルト４９……の先端およびナット５０……を受入するボルト受入凹処５１……を形成している。
【００２７】
本実施形態に係る木造建築物の横架材接合構造は、上記の各用具を用いて以下の手順で完成される。
まず、接合金具主体２０の取付け板２３を柱４０の凹部４２に嵌合させ、互いに一致したボルト挿通孔２５……および４３……にボルト４９……を挿通し、その先端にナット５０を螺合緊締することにより、該接合金具主体２０を柱４０に固定する。
上記凹部４２の深さは、上記取付け板２３の厚さと等しいので、接合金具主体２０は、柱４０の側面と、取付け板２３の表面とが面一となった状態で固定されることとなる。
【００２８】
次に、接合金具主体２０の底板２１に、梁４１の端部４１’を乗載する。これは、上記接合金具主体２０の芯板２２と、梁４１の縦溝４４との位置を合わせて、上記端部４１’を上方または側方から挿し込むことによって行う。
梁４１を、その接合面４８が柱４０の側面に当接するところまで押し込むと、該梁４１の打込み部材受入孔４６は、芯板２２の窓孔２４にほぼ一致する状態となる（図５）。
【００２９】
続いて、ほぼ一致している上記打込み部材受入孔４６と窓孔２４に、上記打込み部材２６を、以下のように打ち込む（図６，７）。
打込み部材２６の上記一側面、すなわち板バネ２７の側を梁４１の接合面４８側に向け、その板バネ２７を該打込み部材受入孔４６の内壁面４６’に押圧させつつ、側方から打込み部材受入孔４６に打ち込んでゆく。
芯板２２の窓孔２４の縁部２４’は、梁４１の打込み部材受入孔４６内に突出しているので、上記打込み部材２６を嵌入して行くと、該打込み部材２６の上記他側面の斜面３３’が、上記縁部２４’に当接する。
この状態からさらに打ち込まれると、該打込み部材２６は接合面４８側に強制的に移動され、板バネ２７を変形させながら嵌入してゆく。そして、上記縁部２４’に、打込み部材２６の嵌合溝３４が嵌合して、固定され、横架材接合構造が完成する。
【００３０】
このように、本実施形態に係る横架材の接合は、接合金具主体２０に梁４１の端部４１’を乗載して、打込み部材２６を打ち込むだけで、簡単に完成させることができる。
【００３１】
接合構造を完成すると、打込み部材２６は、接合金具主体２０の芯板２２の窓孔２４の縁部２４’と、梁４１の打込み部材受入孔４６の内壁面４６’との間に挟持される状態となり、内壁面４６’が板バネ２７によって押圧されるので、梁４１は柱４０の方向に付勢され、接合面４８が柱４０の側面にしっかりと圧接される。したがって、梁４１と柱４０とが確実に接合された状態となる。
また、上記板バネ２７は、地震等により力が加えられた際には変形して振動や衝撃を吸収し和らげる緩衝材として働くので、接合構造が壊れることがない。加わった力が取り除かれたときには、該板バネ２７の復元力によって、接合面４８はふたたび柱４０の側面に圧接されるので、地震等の後にも接合が緩むことはない。
【００３２】
すなわち、梁４１を、柱４０から引き離したり、該梁４１の端部４１’を中心に上下方向に回動させたりする力が加わった場合には、梁４１の接合面４８と柱４０の側面の間に隙間αがあくのに伴い（図８）、板バネ２７が変形して、衝撃を吸収する。また、同時に該板バネ２７の復元力によって内壁面４６’が押圧されるので、加わった力が取り除かれると同時に、梁４１はふたたび柱４０の側面に圧接させられる。
同様に、梁４１を、その端部４１’を中心に左右方向に回動させる力が加わったときにも、隙間βがあくのに伴い（図９）、板バネ２７が変形して、衝撃を吸収する。また、同時に該板バネ２７の復元力によって内壁面４６’が押圧されるので、加わった力が取り除かれると同時に、梁４１はふたたび柱４０の側面に圧接させられる。
【００３３】
さらに、該打込み部材２６は、板バネ保持枠２８の嵌合溝３４が、芯板２２に嵌合しているから、上記のような力が加わっても、打込み部材受入孔４６から抜けてしまうことがない。
【００３４】
次に、本発明を梁（横架材）同士の接合に適用した第２実施形態について図１０により説明する。本実施形態では、梁および打込み部材は上記第１実施形態のものと同一なので、以下、同一の部分には同一の符号を付し、上記第１実施形態と異なる部分についてのみ簡単に述べる。
本実施形態の横架材接合構造は、長方形状の底板６０の中心線に沿って設立した芯板６１の左右二箇所に窓孔６２，６２を開設してなる左右対称形状の接合金具主体６２’を用意するとともに、上記底板６０上に、接合しようとする梁４１，４１の端部４１’、４１’を、嵌合空処４７，４７を該接合金具主体６２’に嵌合させた状態で対向させて乗載し、２つ用意した上記打込み部材２６，２６を打込み部材受入孔４６，４６および窓孔６２，６２に挿入することにより完成される。
この接合構造によれば、二本の梁４１，４１を、それらの接合面４８，４８を互いに圧接して接合することができる。
【００３５】
続いて、本発明を柱の各側面への複数本の梁（横架材）の接合に適用した第３実施形態について図１１により説明する。本実施形態においても、梁および打込み部材は上記第１実施形態のものと同一なので、以下、同一の部分には同一の符号を付し、上記第１実施形態と異なる部分についてのみ簡単に述べる。
本実施形態では、十字に組んだ２枚の芯板７０，７０’を、その両端部を突出させた状態で柱４０’の内部に嵌合収納しておく。そして、上記各芯板７０，７０’の突出部分の中央に窓孔７２……を開設し、それらの突出部分の下端に底板７３……を取り付けることによって接合金具主体７０”を構成する。
この横架材接合構造は、上記接合金具主体７０”の底板７３……に、接合しようとする各梁４１……の端部４１’……を、嵌合空処４７を接合金具主体７０”の突出部分に嵌合させた状態で乗載し、該打込み部材受入孔４６……と、窓孔７２……に、上記打込み部材２６……を挿入することによって完成される。
この接合構造によれば、上記梁４１……を、それらの接合面４８……を上記柱４０’の側面に圧接して接合することができる。
【００３６】
次に、本発明を柱と土台との接合に適用した第４実施形態について簡単に説明する。本実施形態においては、打込み部材は上記第１実施形態のものと実質的に同一なので、以下、上記第１実施形態と異なる部分についてのみ述べる。
上記第１実施形態では、柱４０に固定した接合金具主体２０に、梁４１の端部４８に設けた嵌合空処４７を嵌合させて、柱４０と梁４１とを接合するようにしたが、本実施形態では、コンクリート基礎またはその上に乗載設置した横木等の土台の上面に、接合金具主体の取付け板を固定し、その取付け板の中心線に沿って一側端を固着している芯板を、垂直に起立させた状態とし、該芯板に柱の下端部に設けた嵌合空処を嵌合させる。
そして、その柱の側面に開口させた打込み部材受入孔と、それにほぼ一致した接合金具主体の窓孔とに、打込み部材２６を打ち込むことによって、柱・土台接合構造が完成する。
この接合構造によれば、上記柱を、その下端面を上記土台の上面に圧接して接合することができる。
【００３７】
【発明の効果】
以上述べたところから明らかなように、請求項１，２，３，４記載の本発明木造建築物の横架材接合構造によれば次の効果を奏する。
接合金具主体に横架材の端部を乗載して、打込み部材を打ち込むだけで、簡単に接合構造が完成できる。
【００３８】
また、打込み部材が、接合金具主体の芯板の窓孔の縁部と、梁の打込み部材受入孔の内壁面との間に挟持される状態となり、板バネが緩衝材として働くから、該接合構造は、力が加わっても壊れたり緩んだりすることがない。
しかも、打込み部材は、板バネ保持枠の嵌合溝が芯板の窓孔の縁部に嵌合するから、打込み部材受入孔から抜けてしまうことがない。
【００３９】
また、請求項５，６，７記載の本発明横架材接合用具によれば、力が加わっても壊れたり緩んだりしない接合構造を、簡単に完成させることができる。
【００４０】
請求項８記載の本発明柱・土台接合構造によれば、嵌合空処を接合金具主体に嵌合させた状態で、柱を土台上に乗載し、打込み部材を打ち込むだけで、簡単に接合構造が完成できる。
【００４１】
また、打込み部材が、接合金具主体の芯板の窓孔の縁部と、柱の打込み部材受入孔の内壁面との間に挟持される状態となり、板バネが緩衝材として働くから、該接合構造は、力が加わっても壊れたり緩んだりすることがない。
しかも、打込み部材は、板バネ保持枠の嵌合溝が芯板の窓孔の縁部に嵌合するから、打込み部材受入孔から抜けてしまうことがない。
【００４２】
請求項９の本発明柱・土台接合用具によれば、力が加わっても壊れたり緩んだりしない接合構造を、簡単に完成させることができる。
【図面の簡単な説明】
【図１】本発明横架材接合構造を柱と梁の接合に適用した第１実施形態の分解斜視図である。
【図２】同上の接合構造に用いる板バネ保持枠の斜視図である。
【図３】同上の板バネ保持枠に板バネを挿入してなる打込み部材の平面図である。
【図４】同上の正面図である。
【図５】梁の接合作業を示したもので、柱に固定した接合金具主体に横架材の端部を乗載した状態の側面図である。
【図６】同上の、打込み部材を挿入している状態を示す要部の切断端面図である。
【図７】同上の、打込み部材の挿入が完了した状態を示す要部の切断端面図である。
【図８】梁を柱から引き離す等の力が加わった状態を示す要部の切断端面図である。
【図９】梁を回動させる力が加わった状態を示す要部の切断端面図である。
【図１０】梁同士の接合に本発明を適用した第２実施形態の斜視図である。
【図１１】柱の各側面への複数本の梁の接合に本発明を適用した第３実施形態の斜視図である。
【図１２】従来の横架材と柱との接合構造を示した分解斜視図である。
【図１３】同上の接合構造に用いる用具の斜視図である。
【符号の説明】
２０，６２’，７０” 接合金具主体
２１，６０，７３…… 底板
２２，６１，７０，７０’ 芯板
２３取付け板
２４，６２，６２，７２…… 窓孔
２６打込み部材
２７板バネ
２８板バネ保持枠
２９，３０引掛片
３１湾曲面
３２板バネ保持スペース
３３凸部
３３’ 斜面
３４嵌合溝
４１梁（横架材）
４１’ 端部
４４縦溝
４５扁平凹処
４６打込み部材受入孔
４７嵌合空処
４８接合面[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a joint structure of a horizontal member such as a beam or a girder in a wooden building, a joint structure between a column and a base, and a tool therefor.
[0002]
[Prior art]
[0003]
As a joint structure between a pillar and a horizontal member such as a beam or a girder in a wooden building, there is, for example, one disclosed in Japanese Patent No. 2739462 proposed by the present applicant.
It is as described below with reference to FIGS.
[0004]
A is a joint fitting mainly for joining a column B and a beam (horizontal member) C, which is vertically formed along a center line on a rectangular bottom plate 1 and an upper surface thereof, and has a horizontal rectangular shape in a central portion. A rectangular core plate 3 having a wedge window hole 2 formed therein, and a mounting plate 5 having bolt insertion holes 4 pierced at one end in the longitudinal direction of the bottom plate 1 and the core plate 3. Become.
[0005]
Reference numeral 6 denotes a recess formed in the beam joining portion on one side surface of the column B, and reference numerals 7... Represent bolt insertion holes penetrating the recess 6 through the opposite surface. Is fixed to the column B by fitting the mounting plate 5 into the recess 6 and screwing and tightening the nuts 8 'to the bolts 8 inserted in the bolt insertion holes 4 and 7. You.
[0006]
Reference numeral 9 denotes a fitting cavity provided at an end of the beam C. The fitting cavity 9 has a size and a shape to be fitted to the core plate 3 of the main body A of the bonding metal, and has a vertical opening on the upper surface and the bonding surface of the beam C. A groove 10, a flat recess 11 having a size and a shape to be fitted to the bottom plate 1 of the joint fitting main body A and opened on the lower surface of the beam C, and penetrating the vertical groove 10 and opening on both side surfaces of the beam C And the continuous wedge insertion lateral hole 12.
[0007]
This beam C has its end mounted on the bottom plate 1 of the joint metal body A fixed to the column B, that is, the fitting cavity 9 is fitted to the joint metal body A. In this state, a wedge guide piece 13 and a washer 14 serving as a washer member are fitted into the wedge window holes 2 and the wedge insertion lateral holes 12 which substantially correspond to each other. Is to be fixed to.
[0008]
[Problems to be solved by the invention]
Therefore, when joining the beam C to the column B, first, the wedge guide piece 13 and the washer 14 are fitted into one side of the wedge window hole 2 and one side of the wedge insertion lateral hole 12, and then formed there. It is necessary to go through the procedure of driving the driving wedge 15 into the extra space, and it is necessary to prevent the washer 14 from shifting when the driving wedge 15 is driven, so that the joining operation is complicated.
Further, in this joint structure, the driving wedge 15 is tightly driven so that the beam C is constantly pressed against the side surface of the column B, and these are fixed to each other, so that the beam can swing and rotate with respect to the column. There is no structure to buffer the externally applied force in the event of an earthquake or the like.
[0009]
Accordingly, an object of the present invention is to provide a joint structure for a horizontal member, a column / base joint structure, and a tool therefor that can be easily completed and are not broken even when a force is applied due to an earthquake or the like.
[0010]
[Means for Solving the Problems]
The connecting structure of a wooden building according to the first aspect of the present invention has the following configuration.
(1) Core plates 20, 62 ', and 70 "are provided with bottom plates 21, 60, 73,... And window holes 24, 62, 62, 72,. , 61, 70, 70 '.
(2) The driving member 26 inserts the leaf spring 27 into the leaf spring holding space 32 on one side of the leaf spring holding frame 28 with the bulge directed outward, and The fitting groove 34 is formed on the other side surface.
(3) A horizontal member 41... Penetrates through the vertical groove 44 and the flat groove 45 at the end portion 41 ′ for receiving the main body 20, 62 ′, 70 ″. A fitting cavity 47 is formed by continuously connecting a driving member receiving hole 46 opened on both side surfaces of the horizontal member 41.
(4) The horizontal members 41 are mounted on the bottom plates 21, 60, 73 in a state in which the fitting cavities 47 are fitted to the joining metal members 20, 62 ', 70 ". When the driving members 26 are mounted and the driving member receiving holes 46 and the window holes 24, 62, 62, 72... The plate springs 27 are driven toward the joining surfaces 48 of the frame members 41 while pressing the leaf springs 27 against the inner wall surfaces 46 'of the driving member receiving holes 46, and the driving member receiving holes 46 are formed. By fitting the fitting grooves 34 into the edges 24 'of the window holes 24, 62, 62, 72 projecting inward, the inner wall surfaces 46' and the edges are fitted. Between the parts 24 '...
[0011]
The horizontal member joining structure of the wooden building of the present invention according to claim 2 has the following configuration.
(1) The joining metal body 20 is composed of a bottom plate 21, a core plate 22 formed along the center line of the bottom plate 21, and having a window hole 24 in the center thereof, and one of the two plates 21, 22. And a mounting plate 23 standing upright at the side end.
(2) The driving member 26 converts the leaf spring 27 formed by bending a steel square plate into an arc shape into a curved surface 31 having a center swelled on one side surface of a leaf spring holding frame 28 and a curved surface 31 of the curved surface 31. The bulge is inserted into a leaf spring holding space 32 formed between the left and right ends and the hook pieces 29 and 30 projecting outward from the center of the curved surface 31 with the bulge directed outward. A projection 33 having left and right inclined surfaces 33 'and 33' is projected from the other side surface of the leaf spring holding frame 28, and a fitting groove 34 is formed at the top thereof.
(3) The lateral member 41 has, at its end 41 ′, a vertical groove 44 and a flat concave portion 45 having a size and a shape for receiving the main body 20 of the joint fitting, and the horizontal member through the vertical groove 44. 41 is provided with a fitting cavity 47 which is continuous with a driving member receiving hole 46 opened on both side surfaces of the fitting 41.
(4) The joint member main body 20 is attached to the column 40 by the attachment plate 25, and the horizontal member 41 is mounted on the bottom plate 21 in a state where the fitting cavity 47 is fitted to the joint member main body 20. The driving member 26 is placed on the driving member receiving hole 46 and the window hole 24, which are substantially coincident with each other, with the leaf spring 27 side facing the joining surface 48 side of the horizontal member 41. The fitting groove 34 is fitted into the edge 24 ′ of the window 24 projecting into the driving member receiving hole 46 while being pressed while the spring 27 is pressed against the inner wall surface 46 ′ of the driving member receiving hole 46. Then, the leaf spring 27 is pressed between the inner wall surface 46 ′ and the edge portion 24 ′, and the leaf spring 27 presses the inner wall surface 46 ′. It is pressed against the side surface.
[0012]
The horizontal member joining structure of the wooden building according to the third aspect of the present invention has the following configuration.
(1) The main body 62 ′ is of a symmetrical shape having window holes 62, 62 at two places on the left and right sides of a core plate 61 established along the center line of the rectangular bottom plate 60.
(2) The driving members 26, 26 are formed by bending a plate spring 27 formed by bending a steel square plate into an arc shape, by forming a curved surface 31 having a center swelled on one side surface of a plate spring holding frame 28, and a curved surface thereof. The bulge is inserted into the leaf spring holding space 32 formed between the left and right ends of the curved surface 31 and the hook pieces 29 and 30 protruding outward from the center of the curved surface 31 with the bulge facing outward. At the same time, a protrusion 33 having left and right slopes 33 ′, 33 ′ is projected from the other side surface of the leaf spring holding frame 28, and a fitting groove 34 is formed at the top thereof.
(3) The transverse members 41, 41 penetrate through the longitudinal grooves 44 at the end portions 41 ′ of the longitudinal grooves 44 and the flat recesses 45 of a size and shape to receive half of the main body 62 ′ of the joint fittings. A fitting cavity 47 is formed by continuously connecting a driving member receiving hole 46 opened on both side surfaces of the horizontal member 41.
(4) The horizontal members 41, 41 are mounted on the bottom plates 60, 60 in a state where the fitting cavities 47, 47 are fitted to the joining metal fittings 62 ', respectively. 26, the plate springs 27, 27 are directed toward the joining surfaces 48, 48 of the transverse members 41, 41 in the driving member receiving holes 46 and the window holes 62, 62, which are substantially coincident with each other. Edges of the window holes 62, 62 which are driven while the springs 27, 27 are pressed against the inner wall surfaces 46 ', 46' of the driving member receiving holes 46, 46 and project into the driving member receiving holes 46, 46. The fitting grooves 34 are fitted to the inner wall surfaces 46 ', 46' and the edge portions 24 ', 24', and the leaf springs 27, 27 are attached to the inner wall surfaces 46 '. , 46 ′, the joining surfaces 48, 48 of the horizontal members 41, 41 are pressed against each other. To have.
[0013]
The horizontal member joining structure of the wooden building according to the present invention according to claim 4 has the following configuration.
(1) The joint metal body 70 ″ fits and accommodates two core plates 70, 70 ′ assembled in a cross in a column 40 ′ with both ends protruding, and the core plates 70 ′, 70 ′. Window holes 72 are formed at the centers of the protruding portions 70 and 70 ', and bottom plates 73 are mounted at the lower ends of the protruding portions.
(2) A driving member 26 is a plate spring 27 formed by bending a steel square plate in an arc shape, and a curved surface 31 having a center swelled on one side surface of a leaf spring holding frame 28 and a curved surface thereof. The bulge is inserted into the leaf spring holding space 32 formed between the left and right ends of the curved surface 31 and the hook pieces 29 and 30 protruding outward from the center of the curved surface 31 with the bulge facing outward. At the same time, a protrusion 33 having left and right slopes 33 ′, 33 ′ is projected from the other side surface of the leaf spring holding frame 28, and a fitting groove 34 is formed at the top thereof.
(3) The transverse members 41... Penetrate through the longitudinal grooves 44 at the end portions 41 ′ of the longitudinal grooves 44 and the flat recesses 45 having the size and shape to receive the protruding portion of the joint fitting main body 70 ″. Further, there is provided a fitting cavity 47 which is continuous with a driving member receiving hole 46 opened on both side surfaces of the horizontal member 41.
(4) The horizontal members 41 are mounted on the bottom plates 73 in a state where the fitting cavities 47 are fitted to the joining metal members 70 ″, and the driving members 26 are mounted. ..., the driving member receiving holes 46 and the window holes 72, which almost coincide with each other, the leaf spring 27 side faces the joining surface 48 side of the horizontal member 41. Edges of the window holes 72 which are driven in while pressing the leaf springs 27 against the inner wall surfaces 46 'of the driving member receiving holes 46, and protrude into the driving member receiving holes 46. The fitting grooves 34 are fitted in the inner wall surfaces 46 'and the edge portions 24', and the leaf springs 27 are attached to the inner wall surfaces 46 '. .. Are pressed against the side surfaces of the pillars 40 ′.
[0014]
The horizontal member joining tool for a wooden building according to the present invention according to claim 5,
(1) A bottom plate 21, a core plate 22 formed on the upper surface thereof along a center line thereof and having a window hole 24 formed in a central portion, and standing at one end of both plates 21 and 22. A joint fitting main body 20 including the mounting plate 23;
(2) A plate spring 27 formed by bending a steel square plate in an arc shape is curved from one side of a plate spring holding frame 28 to a curved surface 31 whose center is inflated and left and right ends of the curved surface 31. The leaf spring holding frame is inserted into a leaf spring holding space 32 formed between the hook pieces 29 and 30 projecting outward from the center of the surface 31 with the bulge facing outward. A projection 33 having left and right inclined surfaces 33 ′ and 33 ′ is protruded from the other side surface 28, and a fitting groove 34 is formed on the top of the projection 33. The driving member 26 is driven into the window 24.
[0015]
The tool for joining horizontal members of a wooden building according to the present invention according to claim 6,
(1) A left-right symmetrical joint fitting main body 62 ′ having window holes 62, 62 formed at two places on the left and right sides of a core plate 61 established along the center line of the rectangular bottom plate 60,
(2) A plate spring 27 formed by bending a steel square plate in an arc shape is curved from one side of a plate spring holding frame 28 to a curved surface 31 whose center is inflated and left and right ends of the curved surface 31. The leaf spring holding frame is inserted into a leaf spring holding space 32 formed between the hook pieces 29 and 30 projecting outward from the center of the surface 31 with the bulge facing outward. A projection 33 having left and right slopes 33 ′, 33 ′ protrudes from the other side surface of the projection 28, and a fitting groove 34 is formed at the top of the projection 33, and the driving member 26 is driven into the window hole 62. .
[0016]
The horizontal member joining tool for a wooden building according to the present invention according to claim 7,
(1) The two core plates 70, 70 'assembled in a cross are fitted and housed in the column 40' with both ends protruding, and the center of the protruding portion of each of the core plates 70, 70 '. Window holes 72... And bottom plates 73...
(2) A plate spring 27 formed by bending a steel square plate in an arc shape is curved from one side of a plate spring holding frame 28 to a curved surface 31 whose center is inflated and left and right ends of the curved surface 31. The leaf spring holding frame is inserted into a leaf spring holding space 32 formed between the hook pieces 29 and 30 projecting outward from the center of the surface 31 with the bulge facing outward. A projection 33 having left and right inclined surfaces 33 ', 33' protrudes from the other side surface 28, and a fitting groove 34 is formed at the top of the projection 33. The driving member 26 is driven into the window hole 72. .
[0017]
The pillar / base joint structure of the wooden building according to the present invention according to claim 8 has the following configuration.
(1) The joining metal fitting is formed by fixing one end of a core plate having a window hole in the center along the center line of the mounting plate.
(2) The driving member 26 forms a leaf spring formed by bending a steel square plate in an arc shape from a curved surface of one side surface of the leaf spring holding frame, the center of which is expanded, and the left and right ends of the curved surface. The bulge is inserted into the leaf spring holding space formed between the hook piece protruding outward and the center of the curved surface, with the bulge facing outward, and the other side of the leaf spring holding frame. A protrusion having a slope on the left and right is projected, and a fitting groove is formed at the top.
(3) The pillar has, at the lower end thereof, a vertical groove having a size and a shape for receiving the main body of the above-mentioned joint fitting, and a driving member receiving hole which penetrates the vertical groove and is opened on both side surfaces of the horizontal member. It is provided with a fitting cavity.
(4) The main body of the joint is attached to the upper surface of the base with the core plate vertically erected by a mounting plate, and the column has the fitting cavity fitted to the main body of the joint. In this state, the driving member 26 is mounted on the base, and the driving member 26 faces the driving member receiving hole and the window hole, which are substantially coincident with each other, with the leaf spring side facing the lower end face side of the column. Is pressed into the inner wall surface of the driving member receiving hole, and the fitting groove is fitted to the edge of the window hole projecting into the driving member receiving hole, so that the inner wall surface and the edge And the lower end surface of the column is pressed against the upper surface of the base by the leaf spring pressing the inner wall surface.
[0018]
The pillar / base joining tool of the wooden building according to the present invention according to claim 9,
(1) a joining metal fitting formed by fixing one end of a core plate having a window hole in the center along the center line of the mounting plate;
(2) A leaf spring formed by bending a steel rectangular plate in an arc shape is provided on one side of the leaf spring holding frame, a curved surface having a center inflated, and left and right ends of the curved surface being outside the center of the curved surface. The bulge is inserted into the leaf spring holding space formed between the hook pieces protruded toward the outside in a state where the bulge is directed outward, and the other side surface of the leaf spring holding frame has left and right slopes. A projection is formed, a fitting groove is formed at the top, and a driving member 26 is driven into the window.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment in which the present invention is applied to a joint between a column and a beam (horizontal member) will be described in detail with reference to FIGS.
[0020]
Reference numeral 20 denotes a joining metal fitting, which comprises a rectangular bottom plate 21, a rectangular core plate 22 formed on the upper surface thereof along the center line thereof, and one end of both plates 21, 22. And a mounting plate 23 standing upright.
The core plate 22 has a rectangular window hole 24 at the center, and the mounting plate 23 has a required number of bolt insertion holes at portions located on both sides of the core plate 22. 25 …….
[0021]
Reference numeral 26 denotes a driving member, which includes a leaf spring 27 and a leaf spring holding frame 28. The leaf spring 27 is formed by bending a steel square plate in an arc shape.
On one side surface of the leaf spring holding frame 28, a curved surface 31 whose center is expanded is formed. The left and right ends of the curved surface 31 protrude outward from the center of the curved surface 31, and cutouts 29 ″, 30 ″ are formed at each of the protruding ends to form a substantially U-shape and an inverted U-shape. Hook pieces 29 and 30 are provided so as to face each other, and a leaf spring holding space 32 is formed between the curved surface 31 and the hook pieces 29 and 30.
[0022]
The hook piece 29 protrudes larger than the hook piece 30, and therefore, a groove 29 ′ formed between the hook piece 29 and the curved surface 31 is provided between the hook piece 30 and the curved surface 31. It is deeper than the groove 30 'to be formed.
The upper and lower ends of the grooves 29 'and 30' are closed by end plates 35.
[0023]
The leaf spring 27 is inserted with its one end inserted into the deep groove 29 ′ and then with the other end pushed into the shallow groove 30 ′ so that the bulge is directed outward. It is held in the leaf spring holding space 32. The curvature of the curved surface 31 is smaller than the curvature of the leaf spring 27, and the curved surface 31 prevents the leaf spring 27 from being further deformed when pressed until the leaf spring 27 abuts thereon. Work as a stopper.
[0024]
On the other hand, at the center of the other side surface of the leaf spring holding frame 28, a projection 33 having left and right inclined surfaces 33 ', 33' protrudes, and a fitting groove 34 is formed at the top of the projection 33. I have.
[0025]
A column 40 has a recess 42 having a size and a depth for just fitting the mounting plate 23 of the joining metal body 20 on one side thereof, and a bolt of the mounting plate 23 in the recess 42. In the arrangement corresponding to the insertion holes 25, bolt insertion holes 43 penetrating through the opposite surface are formed.
[0026]
Reference numeral 41 denotes a beam to be joined to the column 40. The end 41 'of the beam 41 has a size and a shape for receiving the core plate 22 of the joint fitting main body 20, and is open to the upper surface and the joint surface 48 of the beam 41. A vertical groove 44, a flat recess 45 having a size and shape to receive the bottom plate 21 of the joint fitting main body 20 and opening to the lower surface and the joint surface 48 of the beam 41, and the beam 41 passing through the vertical groove 44. Is provided with a fitting cavity 47 which is continuous with a driving member receiving hole 46 opened on both side surfaces of the fitting member 47.
Further, on the joint surface 48, there are formed bolt receiving recesses 51 for receiving the tips of bolts 49 and nuts 50 to be described later, which are inserted into the pillars 40 and fix the main body 20 of the joint fitting. .
[0027]
The joint structure for a horizontal member of a wooden building according to the present embodiment is completed by the following procedure using the above-described tools.
First, the mounting plate 23 of the joint fitting main body 20 is fitted into the concave portion 42 of the column 40, and the bolts 49 are inserted into the bolt insertion holes 25 and 43 and 43 that match each other. By fastening together, the main body 20 is fixed to the column 40.
Since the depth of the concave portion 42 is equal to the thickness of the mounting plate 23, the joint fitting main body 20 is fixed with the side surface of the column 40 and the surface of the mounting plate 23 flush. .
[0028]
Next, the end 41 ′ of the beam 41 is mounted on the bottom plate 21 of the joint fitting main body 20. This is performed by aligning the position of the core plate 22 of the main body 20 with the vertical groove 44 of the beam 41 and inserting the end 41 ′ from above or from the side.
When the beam 41 is pushed until the joint surface 48 comes into contact with the side surface of the column 40, the driving member receiving hole 46 of the beam 41 substantially matches the window hole 24 of the core plate 22 (FIG. 5). .
[0029]
Subsequently, the driving member 26 is driven into the driving member receiving hole 46 and the window hole 24 which are substantially coincident as follows (FIGS. 6 and 7).
The one side surface of the driving member 26, that is, the leaf spring 27 side is directed toward the joint surface 48 of the beam 41, and the leaf spring 27 is pressed from the side while being pressed against the inner wall surface 46 ′ of the driving member receiving hole 46. It is driven into the member receiving hole 46.
Since the edge 24 ′ of the window hole 24 of the core plate 22 protrudes into the driving member receiving hole 46 of the beam 41, when the driving member 26 is inserted, the slope of the other side surface of the driving member 26. 33 'abuts the edge 24'.
When the driving member 26 is further driven from this state, the driving member 26 is forcibly moved to the joining surface 48 side, and is fitted while deforming the leaf spring 27. Then, the fitting groove 34 of the driving member 26 is fitted and fixed to the edge portion 24 ', and the cross member joining structure is completed.
[0030]
As described above, the joining of the horizontal members according to the present embodiment can be easily completed simply by mounting the end 41 ′ of the beam 41 on the joint fitting main body 20 and driving the driving member 26.
[0031]
When the joining structure is completed, the driving member 26 is sandwiched between the edge 24 ′ of the window hole 24 of the core plate 22 of the joining fitting main body 20 and the inner wall surface 46 ′ of the driving member receiving hole 46 of the beam 41. Since the inner wall surface 46 ′ is pressed by the leaf spring 27, the beam 41 is urged in the direction of the column 40, and the joint surface 48 is firmly pressed against the side surface of the column 40. Therefore, the beam 41 and the column 40 are securely joined.
Further, the leaf spring 27 is deformed when a force is applied due to an earthquake or the like and functions as a cushioning material that absorbs and relieves vibrations and shocks, so that the joint structure is not broken. When the applied force is removed, the joint surface 48 is again pressed against the side surface of the column 40 by the restoring force of the leaf spring 27, so that the joint is not loosened even after an earthquake or the like.
[0032]
That is, when a force is applied to separate the beam 41 from the column 40 or rotate the beam 41 in the vertical direction about the end 41 ′ of the beam 41, the joint surface 48 of the beam 41 and the side surface of the column 40 are applied. As the gap α increases (FIG. 8), the leaf spring 27 is deformed to absorb the impact. At the same time, since the inner wall surface 46 'is pressed by the restoring force of the leaf spring 27, the applied force is removed, and the beam 41 is again pressed against the side surface of the column 40.
Similarly, when a force for rotating the beam 41 in the left-right direction about its end 41 ′ is applied, the leaf spring 27 is deformed due to the gap β (FIG. 9), and Absorbs. At the same time, since the inner wall surface 46 'is pressed by the restoring force of the leaf spring 27, the applied force is removed, and the beam 41 is again pressed against the side surface of the column 40.
[0033]
Further, since the fitting groove 34 of the leaf spring holding frame 28 is fitted to the core plate 22, the driving member 26 is pulled out from the driving member receiving hole 46 even when the above-described force is applied. Nothing.
[0034]
Next, a second embodiment in which the present invention is applied to joining beams (horizontal members) will be described with reference to FIG. In this embodiment, since the beams and the driving members are the same as those in the first embodiment, the same portions are denoted by the same reference numerals, and only the portions different from those in the first embodiment will be briefly described.
The horizontal member joining structure according to the present embodiment has a left-right symmetrical joint fitting main body 62 in which window holes 62 and 62 are opened at two right and left portions of a core plate 61 established along the center line of a rectangular bottom plate 60. Is prepared, and the ends 41 ′, 41 ′ of the beams 41, 41 to be joined are fitted on the bottom plate 60 with the fitting cavities 47, 47 fitted to the fitting body 62 ′. Then, the two driving members 26, 26 prepared are inserted into the driving member receiving holes 46, 46 and the window holes 62, 62.
According to this joint structure, the two beams 41, 41 can be joined by pressing their joint surfaces 48, 48 together.
[0035]
Next, a third embodiment in which the present invention is applied to joining a plurality of beams (horizontal members) to each side surface of a pillar will be described with reference to FIG. Also in this embodiment, since the beams and the driving members are the same as those in the first embodiment, the same portions are denoted by the same reference numerals, and only the portions different from those in the first embodiment will be briefly described.
In the present embodiment, two core plates 70, 70 'assembled in a cross are fitted and housed inside the column 40' with both ends protruding. Window holes 72 are formed at the centers of the protruding portions of the core plates 70 and 70 ', and bottom plates 73 are mounted at the lower ends of the protruding portions, thereby forming the main body 70 ".
In this horizontal member joining structure, the end portions 41 'of the beams 41 to be joined to the bottom plate 73 of the joining member main body 70 ", the fitting cavity 47 is attached to the joining member main body 70". Are mounted in a state where they are fitted to the projecting portions, and the driving members 26 are inserted into the driving member receiving holes 46 and the window holes 72.
According to this joint structure, the beams 41 can be joined by pressing their joint surfaces 48 to the side surfaces of the columns 40 '.
[0036]
Next, a fourth embodiment in which the present invention is applied to the joint between a pillar and a base will be briefly described. In the present embodiment, the driving member is substantially the same as that of the first embodiment, and therefore, only the parts different from the first embodiment will be described below.
In the first embodiment described above, the column 40 and the beam 41 are joined by fitting the fitting cavity 47 provided at the end portion 48 of the beam 41 into the joint fitting main body 20 fixed to the column 40. However, in this embodiment, a mounting plate mainly composed of a joint fitting is fixed to the upper surface of a concrete foundation or a base such as a crosspiece mounted on the concrete base, and one end is fixed along the center line of the mounting plate. The core plate is vertically erected, and the fitting space provided at the lower end of the column is fitted to the core plate.
Then, the driving member 26 is driven into the driving member receiving hole opened on the side surface of the column and the window hole mainly corresponding to the driving member, thereby completing the column / base joint structure.
According to this joining structure, the column can be joined by pressing the lower end surface thereof to the upper surface of the base.
[0037]
【The invention's effect】
As is apparent from the above description, the following effects can be obtained by the structure for joining a horizontal member of a wooden building according to the present invention.
The joining structure can be easily completed simply by placing the end of the horizontal member on the joining metal fittings and driving in the driving member.
[0038]
Further, the driving member is sandwiched between the edge of the window hole of the core plate mainly composed of the joining metal and the inner wall surface of the driving member receiving hole of the beam, and the leaf spring acts as a cushioning material. The structure does not break or loosen under force.
Moreover, since the fitting groove of the leaf spring holding frame fits into the edge of the window hole of the core plate, the driving member does not fall out of the driving member receiving hole.
[0039]
Further, according to the invention, the joining structure which does not break or loosen even when a force is applied can be easily completed.
[0040]
According to the pillar / base joint structure of the present invention as set forth in claim 8, the pillar is mounted on the base and the driving member is driven in a state where the fitting space is fitted to the main body of the fitting, so that it can be easily achieved. The joining structure can be completed.
[0041]
Also, the driving member is sandwiched between the edge of the window hole of the core plate mainly composed of the joining metal and the inner wall surface of the driving member receiving hole of the pillar, and the leaf spring acts as a cushioning material. The structure does not break or loosen under force.
Moreover, since the fitting groove of the leaf spring holding frame fits into the edge of the window hole of the core plate, the driving member does not fall out of the driving member receiving hole.
[0042]
According to the column / base joint tool of the ninth aspect, a joint structure that does not break or loosen even when a force is applied can be easily completed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment in which a transverse member joining structure of the present invention is applied to joining columns and beams.
FIG. 2 is a perspective view of a leaf spring holding frame used in the joint structure of the above.
FIG. 3 is a plan view of a driving member formed by inserting a leaf spring into the leaf spring holding frame according to the first embodiment.
FIG. 4 is a front view of the same.
FIG. 5 is a side view showing a beam joining operation, in a state in which an end portion of a transverse member is mounted on a joining fitting mainly fixed to a pillar.
FIG. 6 is a cross-sectional end view of a main part showing a state where the driving member is inserted in the same.
FIG. 7 is a cut end view of a main part showing a state in which the insertion of the driving member has been completed;
FIG. 8 is a cut end view of a main part showing a state where a force such as pulling a beam away from a column is applied;
FIG. 9 is a cut end view of a main part showing a state in which a force for rotating a beam is applied.
FIG. 10 is a perspective view of a second embodiment in which the present invention is applied to joining beams.
FIG. 11 is a perspective view of a third embodiment in which the present invention is applied to joining a plurality of beams to each side surface of a pillar.
FIG. 12 is an exploded perspective view showing a conventional joint structure between a horizontal member and a pillar.
FIG. 13 is a perspective view of a tool used for the joint structure of the above.
[Explanation of symbols]
20,62 ', 70 "
21, 60, 73 ... bottom plate
22, 61, 70, 70 'core plate
23 Mounting plate
24, 62, 62, 72 ... window holes
26 Driving member
27 Leaf spring
28 Leaf spring holding frame
29,30 hook
31 Curved surface
32 Leaf spring holding space
33 convex
33 'slope
34 mating groove
41 beams (horizontal members)
41 'end
44 flute
45 Flat recess
46 Driving member receiving hole
47 mating cavity
48 Joining surface

Claims

The joining metal body is provided with a bottom plate and a core plate formed on the upper surface thereof and having a window hole formed therein,
The driving member inserts the leaf spring into the leaf spring holding space on one side of the leaf spring holding frame with the bulge directed outward, and forms a fitting groove on the other side of the leaf spring holding frame. To become a,
At the end of the horizontal member, a vertical groove and a flat recess for receiving the main body of the joining fitting, and a driving member receiving hole that penetrates the vertical groove and opens on both side surfaces of the horizontal member are connected. Having a mating cavity
And, the horizontal member is mounted on the bottom plate in a state where the fitting space is fitted to the main body of the joining fitting, and the driving member is substantially matched with the driving member receiving hole and the window hole. The leaf spring is directed toward the joining surface side of the transverse member, and the leaf spring is driven while being pressed against the inner wall surface of the driving member receiving hole, and protrudes into the driving member receiving hole. A joining structure for a wooden building, wherein the fitting groove is fitted to an edge of a window hole and is sandwiched between the inner wall surface and the edge.

From the bottom plate, the core plate with the window hole opened in the center, established along the center line of the bottom plate, and the mounting plate standing at one end of both plates To become a,
The driving member has a leaf spring formed by bending a steel rectangular plate in an arc shape, a curved surface having a center inflated at one side of the leaf spring holding frame, and a center of the curved surface from the left and right ends of the curved surface. In the leaf spring holding space formed between the hook pieces protruding outward, the bulge is inserted with the bulge facing outward, and the left and right slopes are formed on the other side of the leaf spring holding frame. Projecting a convex part having, and forming a fitting groove at the top thereof,
At the end of the transverse member, a vertical groove and a flat recess having a size and shape for receiving the main body of the joining fitting, and a driving member receiving hole that penetrates the vertical groove and opens on both side surfaces of the transverse member. And a mating cavity that is made continuous with
And the joining member main body is attached to the column by a mounting plate, and the horizontal member is mounted on the bottom plate in a state where the fitting cavity is fitted to the joining member main body, and the driving member However, while the driving member receiving hole and the window hole almost coincide with each other, the side of the leaf spring is directed toward the joining surface side of the horizontal member, and the leaf spring is pressed against the inner wall surface of the driving member receiving hole. The fitting groove is fitted into an edge of the window hole that is driven into and protrudes into the receiving member receiving hole, and is sandwiched between the inner wall surface and the edge. A joining structure of a wooden building, wherein a joining surface of the transverse member is pressed against a side surface of the column by pressing a wall surface.

The joining metal fittings are of a symmetrical shape with window holes opened at two places on the left and right sides of the core plate established along the center line of the rectangular bottom plate,
The driving member has a leaf spring formed by bending a steel rectangular plate in an arc shape, a curved surface having a center inflated at one side of the leaf spring holding frame, and a center of the curved surface from the left and right ends of the curved surface. In the leaf spring holding space formed between the hook pieces protruding outward, the bulge is inserted with the bulge facing outward, and the left and right slopes are formed on the other side of the leaf spring holding frame. Projecting a convex part having, and forming a fitting groove at the top thereof,
A lateral member is formed at its end with a vertical groove and a flat recess having a size and a shape for receiving half of the main body of the joining fitting, and a driving member that penetrates the vertical groove and opens on both side surfaces of the horizontal member. Having a mating cavity made continuous with the receiving hole,
And, the horizontal member is mounted on the bottom plate in a state where the fitting space is fitted to the main body of the joining fitting, and the driving member is substantially matched with the driving member receiving hole and the window hole. The leaf spring is directed toward the joining surface side of the transverse member, and the leaf spring is driven while being pressed against the inner wall surface of the driving member receiving hole, and protrudes into the driving member receiving hole. The fitting groove is fitted to the edge of the window hole, is sandwiched between the inner wall surface and the edge portion, and the leaf spring presses the inner wall surface, so that the joining surface of the horizontal member is Are joined to each other by pressure.

The main body of the fitting fits and accommodates the two core plates assembled in a cross in a column with the both ends protruding, and opens a window hole at the center of the protruding portion of each core plate. , That a bottom plate is attached to the lower end of those protruding parts,
The driving member has a leaf spring formed by bending a steel rectangular plate in an arc shape, a curved surface having a center inflated at one side of the leaf spring holding frame, and a center of the curved surface from the left and right ends of the curved surface. In the leaf spring holding space formed between the hook pieces protruding outward, the bulge is inserted with the bulge facing outward, and the left and right slopes are formed on the other side of the leaf spring holding frame. Projecting a convex part having, and forming a fitting groove at the top thereof,
At the end of the horizontal member, a vertical groove and a flat concave portion having a size and a shape for receiving the projecting portion mainly of the joining metal fitting, and a driving which penetrates the vertical groove and opens on both side surfaces of the horizontal member. Having a fitting cavity formed by connecting the member receiving hole,
And, the horizontal member is mounted on the bottom plate in a state where the fitting space is fitted to the main body of the joining fitting, and the driving member is substantially matched with the driving member receiving hole and the window hole. The leaf spring is directed toward the joining surface side of the transverse member, and the leaf spring is driven while being pressed against the inner wall surface of the driving member receiving hole, and protrudes into the driving member receiving hole. Fitting the fitting groove to the edge of the window hole, sandwiched between the inner wall surface and the edge, the leaf spring presses the inner wall surface, the joining surface of the horizontal member is A horizontal member joining structure for a wooden building, which is pressed against a side surface of the column.

A bottom plate, a core plate formed along the center line of the bottom plate, and having a window hole in the center, and a mounting plate mainly comprising a mounting plate standing at one end of both plates; ,
A leaf spring formed by bending a steel square plate in an arc shape is directed from one side of the leaf spring holding frame to a curved surface whose center is inflated, and from the left and right ends of the curved surface to the center outward of the curved surface. In the leaf spring holding space formed between the hooking pieces protruded, the bulge is inserted in a state where the bulge faces outward, and a convex portion having left and right slopes on the other side of the leaf spring holding frame. A horizontal member joining tool for a wooden building, comprising: a projecting member having a fitting groove formed at a top portion thereof; and a driving member driven into the window hole.

A left-right symmetrical joint fitting mainly formed with window holes at two places on the left and right sides of the core plate established along the center line of the rectangular bottom plate,
A leaf spring formed by bending a steel square plate in an arc shape is directed from one side of the leaf spring holding frame to a curved surface whose center is inflated, and from the left and right ends of the curved surface to the center outward of the curved surface. In the leaf spring holding space formed between the hooking pieces protruded, the bulge is inserted in a state where the bulge faces outward, and a convex portion having left and right slopes on the other side of the leaf spring holding frame. A horizontal member joining tool for a wooden building, comprising: a projecting member having a fitting groove formed at a top portion thereof; and a driving member driven into the window hole.

The two core plates assembled in a cross are fitted and housed in a pillar with both ends protruding, and a window hole is opened in the center of the protruding portion of each of the core plates, and the lower ends of the protruding portions are formed. A joining metal fitting with a bottom plate attached to
A leaf spring formed by bending a steel square plate in an arc shape is directed from one side of the leaf spring holding frame to a curved surface whose center is inflated, and from the left and right ends of the curved surface to the center outward of the curved surface. In the leaf spring holding space formed between the hooking pieces protruded, the bulge is inserted in a state where the bulge faces outward, and a convex portion having left and right slopes on the other side of the leaf spring holding frame. A horizontal member joining tool for a wooden building, comprising: a projecting member having a fitting groove formed at a top portion thereof; and a driving member driven into the window hole.

The joining metal body is fixed to one end of the core plate having a window hole in the center along the center line of the mounting plate,
The driving member has a leaf spring formed by bending a steel rectangular plate in an arc shape, a curved surface having a center inflated at one side of the leaf spring holding frame, and a center of the curved surface from the left and right ends of the curved surface. In the leaf spring holding space formed between the hook pieces protruding outward, the bulge is inserted with the bulge facing outward, and the left and right slopes are formed on the other side of the leaf spring holding frame. Projecting a convex part having, and forming a fitting groove at the top thereof,
The pillar has, at its lower end, a vertical groove having a size and shape for receiving the main body of the joining metal fitting, and a driving member receiving hole that penetrates the vertical groove and opens on both side surfaces of the horizontal member. Having a mating cavity,
And a state in which the main body of the joint is attached to the upper surface of the base in a state where the core plate is vertically erected by a mounting plate, and the column is fitted with the main body of the joint with the main body of the joint. Then, the leaf spring is mounted on the base, and the driving member faces the driving member receiving hole and the window hole, which are substantially coincident with each other, with the leaf spring side facing the lower end face side of the pillar, and It is driven while being pressed against the inner wall surface of the driving member receiving hole, the fitting groove is fitted to the edge of the window hole projecting into the driving member receiving hole, and the inner wall surface and the edge portion are connected to each other. A pillar / base joint structure for a wooden building, wherein the lower end face of the column is pressed against the upper surface of the base by being sandwiched between the leaf springs and pressing the inner wall surface.

A joint metal body formed by fixing one end of a core plate having a window hole in the center along the center line of the mounting plate,
A leaf spring formed by bending a steel square plate in an arc shape is directed from one side of the leaf spring holding frame to a curved surface whose center is inflated, and from the left and right ends of the curved surface to the center outward of the curved surface. In the leaf spring holding space formed between the hooking pieces protruded, the bulge is inserted in a state where the bulge faces outward, and a convex portion having left and right slopes on the other side of the leaf spring holding frame. A tool for joining a column and a base of a wooden building, comprising: a projecting member having a fitting groove formed at a top portion thereof and being driven into the window hole.