JP4426673B2

JP4426673B2 - Seal structure of the outer wall of the building

Info

Publication number: JP4426673B2
Application number: JP23835999A
Authority: JP
Inventors: 禮吉大辻; 弘志土屋; 廣石川
Original assignee: Nippon Steel and Sumikin Coated Sheet Corp
Current assignee: Nippon Steel Coated Sheet Corp
Priority date: 1999-08-25
Filing date: 1999-08-25
Publication date: 2010-03-03
Anticipated expiration: 2019-08-25
Also published as: JP2001059327A

Description

【０００１】
【発明の属する技術分野】
本発明は、建造物の外壁のシール構造に関し、詳しくは、外壁材を張った外壁ユニットを上下及び左右に配設して施工した例えば、高層階建造物の外壁のシール構造に関し、更に詳しくは、上下及び左右に隣接する外壁材のコーナー部間の接続箇所における水密性を長期にわたって良好に維持しようとする技術に係るものである。
【０００２】
【従来の技術】
近来、ビルディングの外壁を施工するのに、図４に示すように、表裏の金属外皮１，２間に芯材３を充填するとともに上下部の一方に接続凹部４を、他方に接続凸部５を形成した外壁材６を使用することで、ビルディングの外観を著しく高めるとともに断熱性、耐候性等を充分に高めることができることから普及している。
【０００３】
ところで、上記のような外壁材６は、その各々を壁下地に固定具１７にて固定するのであり、膨大な足場が必要となり、大型ビルディングにおいては多大な手数を要して工期が長引くものであり、高層階建造物においては、足場を組めなく、施工が困難になる場合がある。
【０００４】
このような問題を解消する手段として、多数枚の外壁材をユニット枠に取付けて壁ユニットを組立て、この壁ユニットをクレーンで吊上げて接続する工法が考えられ、提案されている。
【０００５】
【発明が解決しようとする課題】
ところが、このような工法においては、上下左右に並設される壁ユニット間で、上下及び左右に隣接する４枚の外壁材のコーナー部間の接続箇所における水密性を確保することが困難である。
【０００６】
特に、４枚の外壁材のコーナー部が位置する接続箇所においては、４枚の外壁材が個々に振動したり位置変更がなされるのであり、コーナー部におけるコーキング剤に亀裂が入りやすく、破壊されやすく、コーナー部における水密性が損なわれやすくなるものである。
【０００７】
本発明はこのような問題に鑑みてなされたものであり、上下左右に並設される外壁ユニット間で、上下及び左右に隣接する４枚の外壁材のコーナー部間の接続箇所における水密性を長期にわたって良好に維持することができる建造物の外壁のシール構造を提供することを課題とする。
【０００８】
【課題を解決するための手段】
請求項１においては、表裏の金属外皮１，２間に芯材３を充填するとともに上下部の一方に接続凹部４を、他方に接続凸部５を形成した外壁材６の複数枚を接続凹部４と接続凸部５とを水密手段を介して接続してユニット枠７に取付け、嵌合凸部１０をユニット枠７の下端部に設けると共に、嵌合凸部１０と嵌合されて外壁材６を鉛直方向に維持させる嵌合凹部９をユニット枠７の上端部に設けて外壁ユニットＡを構成し、外壁ユニットＡの上下位置の微調整を行なうための仮止め手段１３をユニット枠７に設け、嵌合凹部９に嵌合凸部１０を上下に摺動可能に嵌合させた状態で、上下の外壁ユニットＡ，Ａの上位と下位の外壁材６の接続凹部４と接続凸部５とを水密手段を介して接続し、上下左右の外壁ユニットＡ…の外壁材６…が構成するコーナー部間に水密パッキンＰを介装していることを特徴とするものである。このような構成によれば、上下の外壁ユニットＡ，Ａ間における上下の外壁材６，６の接続凹部４と接続凸部５とを水密手段を介して接続するとともに、上下左右の４枚の外壁材６のコーナー部においては、水密パッキンＰを介装するのであり、４枚の外壁材６…間の接続箇所における水密性を長期にわたって良好に維持することができる。
また、嵌合凸部１０を嵌合凹部９に嵌合させると、外壁材６を鉛直方向に維持させることができるため、上位の外壁ユニットＡを下位の外壁ユニットＡに対して屋内外方向の位置決めをした状態で接続できる。その上、仮止め手段１３により外壁ユニットＡの上下位置の微調整を行なうことができるので、上位の外壁ユニットＡと下位の外壁ユニットＡとの接続を所定通りに良好に行なうことができ、接続箇所に多大な荷重がかかるのを回避できて上下の外壁材６の接続箇所の変形や損傷を確実に防止することができる。
【０００９】
請求項２においては、表裏の金属外皮１，２間に芯材３を充填した外壁材６の上端部に表側の金属外皮１を裏面側に折り曲げて外壁材面に略直交する横目地側壁６５を形成し、横目地側壁６５に連ねて外壁材面に略平行となる横目地底壁６６を形成し、横目地底壁６６よりも更に外壁材６の上端部に接続凹部４もしくは接続凸部５の一方を形成し、
外壁材６の左右端部に表側の金属外皮１を折り曲げて側壁６１を形成し、側壁６１から外壁材６の厚さ方向の中間部から外側方に縦目地片６２を延出し、縦目地片６２の上端を裏面側に折り曲げて外壁材面とは略直交する第１パッキン受面Ｓ１を形成し、第１パッキン受面Ｓ１の先端に連続させて外壁材面と略平行となる第２パッキン受面Ｓ２を形成し、第１パッキン受面Ｓ１及び第２パッキン受面Ｓ２に連なるとともに横目地底壁６６の側端部を裏面側に折り曲げて外壁材面に略直交する第３パッキン受面Ｓ３を形成し、
外壁材６の下端部に、横目地側壁６５の高さＨに相当する厚さＴの横目地形成片７０を垂下し、横目地形成片７０の下端に上記横目地側壁６５に対向する横目地形成壁６９を形成し、横目地形成片７０よりも裏面側に接続凹部４もしくは接続凸部５の他方を形成して外壁材６を構成し、
左右に並設される外壁ユニットＡ，Ａ間において、下段で左右に隣接する外壁材６，６の横目地側壁６５，６５に、上段において左右に隣接する外壁材６，６の横目地形成壁６９，６９を対向させて横目地６３を形成し、左右に隣接する外壁材６，６の縦目地片６２，６２を略面一に並置して縦目地片６２，６２の上面で左右の外壁材６，６の側壁６１，６１間に縦目地６４を形成し、
上下に接続される外壁ユニットＡ，Ａにおいて、上下に対向する外壁材６，６の接続凹部４と接続凸部５とを嵌合させ、
これら上下左右の４枚の外壁材６…のコーナー部が位置する箇所で、上段の左右の外壁材６，６の縦目地片６２，６２の表面側において、水密パッキンＰの下端面Ｐ１を第１パッキン受面Ｓ１に、水密パッキンＰの底面Ｐ２を第２パッキン受面Ｓ２に、水密パッキンＰの左右の側端面Ｐ３，Ｐ３を左右に対向する第３パッキン受面Ｓ３，Ｓ３にそれぞれ弾接させ、横目地６３及び縦目地６４にコーキング剤４４を充填していることを特徴とするものである。
【００１０】
このような構成によれば、４枚の外壁材６…のコーナー部が接続される箇所に充填されたコーキング剤４４が経年変化で劣化して亀裂が入ったり、４枚の外壁材６…が独立して移動して、破壊されたとしても、上段において左右に隣接する外壁材６，６の縦目地片６２の下面に水密パッキンＰが位置し、上段の縦目地片６２，６２間に雨水が浸入するするのを阻止することができ、また、水密パッキンＰは、それぞれが直交して連なる第１パッキン受面Ｓ１、第２パッキン受面Ｓ２及び第３パッキン受面Ｓ３にそれぞれ弾接することで、損なわれたコーキング剤４４を通過した雨水が接続箇所に浸入するのを阻止することができ、しかして、芯材の劣化を回避でき、このように、４枚の外壁材６…のコーナー部間の接続箇所における水密性を、目地部分に充填されるコーキング剤４４等の経年変化による劣化や、振動や地震等による亀裂発生等においても、長期にわたって良好に維持することができる。
【００１１】
請求項３においては、左右の外壁ユニットＡ，Ａの外壁材６，６間でコーキング剤４４が充填された背部にユニットの上下高さに略相当する高さで前方が開放された断面略コ字状の樋体４３を配設し、上下の樋体４３を接続樋体５１にて接続してあることを特徴とするものである。このような構成によれば、上下に隣接する樋体４３，４３は接続樋体５１にて接続されていて、高層階建造物において樋体４３を１本物にしなくてもよく、樋の施工性を高める。
【００１２】
【発明の実施の形態】
以下、本発明の実施の形態を説明する。図６は外壁ユニットの接続を示す部分側面図、図７はクレーン工法を示す概略斜視図である。
【００１３】
外壁ユニットＡは、上下間隔を隔てた例えば、アングル材を横フレーム１８とし、横フレーム１８に例えば、チャンネル材を胴縁１５として取付け、これら横フレーム１８を左右間隔を隔てた縦フレーム１６に溶接等して接続することでユニット枠７を構成し、このようなユニット枠７における胴縁１５に横長の複数枚の外壁材６を固定具１７にて固定したものである。外壁材６は、例えば横寸法３９６０ｍｍ×縦寸法９１０ｍｍのものを上下に例えば、７枚を張付けるものである。外壁ユニットＡの高さは高層階建造物の各階の高さに相当する高さにしている。このような外壁ユニットＡは、高層階建造物の施工現場や、工場等任意の場所において組立てることができるものである。ところで、外壁ユニットＡにおいて、上下中間部の複数枚の外壁材６を取付けないで、この箇所にサッシ３９を嵌込んで窓とし窓ガラスを嵌込むようにして構造建造物において連続する窓を形成することもできるものである。
【００１４】
外壁材６は、図４に示すように、表裏の金属外皮１，２間に、例えば、ロックウールのような無機質材料からなる芯材３を充填するとともに上部に接続凹部４を、他方に接続凸部５を形成したものである。接続凹部４側の表部には固定凹所２０を、接続凸部５側の表部には覆い部２１を形成している。しかして、固定凹所２０に固定具１７を打込んで外壁材６の上部を胴縁１５に固定し、接続凹部４に上の外壁材６の接続凸部５を嵌合して接続するのであり、この場合、固定凹所２０に覆い部２１が係入して固定具１７を隠している。このような上下方向の接続箇所には水密手段としてのシールパッキン２２が介装されて充分な水密性を確保している。
【００１５】
図６及び図７に示すように、縦フレーム１６の上端部には摺動を許容する嵌合凹部９を形成した受部材２３がボルト２４にて固定されて上方に突出している。摺動を許容する嵌合凹部９は上下方向の摺動溝２５と略Ｖ字状に開いた導入溝部２６を備えている。縦フレーム１６の下端部には締付けて本締めが可能なボルト２８及びガイドピン２９を設けていて、ボルト２８とガイドピン２９との２本で、上下の方向性を出すようにしている。又、両端部の縦フレーム１６，１６には吊下げ部１１，１１を取付けてクレーンのフック２７を引掛けることで、外壁ユニットＡを吊下げ施工することができるようにしている。
【００１６】
吊下げ部１１の下方で縦フレーム１６には、上下方向の微調整をおこなうことができる仮止め手段１３を設けている。具体的には、アングル材３０のねじ孔にセットナット３１を付設して調整ボルト３２をねじ込んだものである。一方、建造物側の構造体３３側においては、各階の床部３４を構成する梁材３５にはアングル材の受材３６を調整ボルト３２に対して上下方向に対向させて取付けてある。
【００１７】
このような構成によれば、先ず、クレーンで吊上げた外壁ユニットＡを高層階建造物の１階部分に降ろして構造体３３側のアングル材の受材３６に円弧状の板ばね３７を介してボルト３８にて外壁ユニットＡをその上下部において固定するのである。次に、２階部分に外壁ユニットＡを施工するのに際して、下の外壁ユニットＡにおけるＶ字状の導入溝部２６を形成した嵌合凹部９に上の外壁ユニットＡの嵌合凸部１０を摺動嵌合させることで、上の外壁ユニットＡを下の外壁ユニットＡに対して屋内外方向の位置決めして接続がおこなえるのであり、クレーン工法を楽におこなうことができるのである。
【００１８】
このように、摺動を許容する嵌合凹部９の摺動溝２５に嵌合凸部１０であるボルト２８及びガイドピン２９が鉛直方向を維持して接続されるのである。この場合、上の外壁ユニットＡと下の外壁ユニットＡとの上下の外壁材６，６の接続凹部４と接続凸部５との嵌合程度を判断して、調整ボルト３１を下方に突出して上下方向の微調整をおこなって接続凹部４と接続凸部５とが完全に接続する手前で調整ボルト３１を受材３６に当てて仮止めをおこなうのである。このように、上下の外壁ユニットＡ，Ａを接続する場合に、上の外壁ユニットＡの荷重が下の外壁ユニットＡにかかることを確実に阻止することができるのであり、したがって、上下の外壁材６，６の接続凹部４と接続凸部５との接続を所定通りに良好におこなうことができ、接続箇所に多大な荷重がかかるのを回避できて上下の外壁材６，６の接続箇所の変形や損傷を確実に防止することができるのである。
【００１９】
この場合、仮止め手段１３は屋内側に位置させて、仮止め手段１３を操作しているときに上下の接続凹部４と接続凸部５との接続を目視できる位置に設けてある。このような構成によれば、仮止め手段１３における微調整部１４の微調整をおこなうにあたって、上下の外壁材６，６の接続凹部４と接続凸部５との接続状況を目視しながら上下の微調整をおこなうことができ、上下の外壁材６，６の接続凹部４と接続凸部５の接続を所定通りにおこなうことができるのである。
【００２０】
図１０は水平断面図を示し、図１１は拡大断面図を示し、横方向の外壁ユニットＡ，Ａの水密接続構造を示している。
【００２１】
外壁材６の横方向の端部には芯材３に対向して側端片６１が折曲げられ、側端片６１に続いて受片６２が折曲げられている。側端片６１と芯材３との間にシールパッキン４２が介装されている。左右のシールパッキン４２，４２の背部には偏平なコ字状の樋体４３の両端片が圧入されている。隣接の外壁材６，６の側端片６１，６１には変性シリコン樹脂がコーキング剤４４として充填されている。樋体４３は柱材４５に支持片４６を介して支持されている。このような樋体４３及び柱材４５は各階単位に設置される。図１２は外壁ユニットＡと樋体４３を備えた柱材４５の施工の順序を示していて、下階側のイ→ロ→ハ、上階側のニ→ホ→ヘの順番でおこなわれる。ところで、樋体４３を保持している柱材４５はクレーンで各階の所定の位置に吊下げられ、柱材４５が作業者によって前方に押されて樋体４３の両端片がシールパッキン４２，４２に圧入されるのである。
【００２２】
図１３及び図１４は上下の樋体４３，４３の接続構造を示している。接続樋体５１は、下の樋体４３の内部に挿入される小径樋部５１ａと上の樋体４３の外部に外嵌される大径樋部５１ｂとを備えている。しかして、小径樋部５１ａを下の樋体４３の内部に、大径樋部５１ｂを上の樋体４３の外部に外嵌するのである。この場合、図１３の仮想線で示すように、接続樋体５１を上部が下部に比べて樋体４３から離れる後傾姿勢にして小径樋部５１ａを下の樋体４３の内部に挿入した後、接続樋体５１を下降させるとともに下の樋体４３との係合箇所を支点として前方に回動させて大径樋部５１ｂを上の樋体４３の外部に外嵌するのである。
【００２３】
ところで、上下及び左右に並設される外壁ユニットＡ…において、4枚の外壁材６…が交わるコーナー部においては、充分な水密シールを図るものであり、以下、詳述する。まず、外壁材６の構成を説明する。
【００２４】
送り出し装置にて送り出された表裏の金属外皮１，２の両端にはロール成形により成形されて接続凸部外皮部分５ａ及び接続凹部外皮部分４ａが形成され、これら二枚の金属外皮１，２間に芯材３としてのロックウール材、珪酸カルシウムが装填されている。珪酸カルシウムは耐火性及び機械的強度が高く、上記接続凸部外皮部分５ａ及び接続凹部外皮部分４ａに装填され、接続凸部５及び接続凹部４における耐火性及び機械的強度を高めている。二枚の金属外皮１，２は、接続凸部５と接続凹部４とにおいて、若干の隙間ｄが形成されて、二枚の金属外皮１，２間の熱伝導（ヒートブリッジ）を回避するようにしている。
【００２５】
外壁材６の上端部に表側の金属外皮１を裏面側に折り曲げて外壁材面に略直交する横目地側壁６５を形成し、横目地側壁６５に連ねて外壁材面に略平行となる横目地底壁６６を形成し、横目地底壁６６よりも更に一段低く固定凹所２０を形成し、固定凹所２０よりも更に外壁材６の上端部に接続凹部４を形成している。
【００２６】
外壁材６の下端部に、横目地側壁６５の高さＨに相当する厚さＴの横目地形成片７０を垂下し、横目地形成片７０の下端に上記横目地側壁６５に対向する横目地形成壁６９を形成し、横目地形成片７０よりも裏面側に接続凸部５を形成している。
【００２７】
外壁材６の左右端部には、表側の金属外皮１を折り曲げて側壁６１を形成し、側壁６１から外壁材６の厚さ方向の中間部から外側方に縦目地片６２を延出してある。縦目地片６２の上端を裏面側に折り曲げて外壁材面とは略直交する第１パッキン受面Ｓ１を形成している。第１パッキン受面Ｓ１の先端に連続させて外壁材面と略平行となる第２パッキン受面Ｓ２を形成している。第１パッキン受面Ｓ１及び第２パッキン受面Ｓ２に連なるとともに横目地底壁６６の側端部を裏面側に折り曲げて外壁材面に略直交する第３パッキン受面Ｓ３を形成している。
【００２８】
外壁材６の左右側端部において、芯材３の側壁６１との間に長尺で小幅のシールパッキン４２，４２を介装している。このようにして外壁材６を構成している。
【００２９】
しかして、外壁材６，６は図４に示すように、釘打部２０において下位において左右の外壁材６，６をボルト１７にて胴縁１５に固定し、外壁材６，６の縦目地片６２，６２を略面一に並置して縦目地片６２，６２の上面で左右の外壁材６，６の側壁６１，６１間に縦目地６４を形成する。
【００３０】
次に、左右に隣接する外壁材６，６の一方の上方において、下位のものの接続凹部４に上位のものの接続凸部５を嵌合させ、下段の外壁材６の横目地側壁６５に、上段の外壁材６の横目地形成壁６９を対向させて横目地６３を形成し、上位の外壁材６の接続凸部５を下位の外壁材６の接続凹部４に嵌合させる。
【００３１】
このように４枚の外壁材６…が交差する表面側に厚帯板状で立方体の水密パッキンＰの下端面Ｐ１を第１パッキン受面Ｓ１に、水密パッキンＰの底面Ｐ２を第２パッキン受面Ｓ２に、水密パッキンＰの左右の側端面Ｐ３，Ｐ３を左右に対向する第３パッキン受面Ｓ３，Ｓ３にそれぞれ弾接させるのである。
【００３２】
ところで、図３に示すように、左右の外壁材６，６の縦目地６４の背部には左右の外壁材６，６のシールパッキン４２，４２に跨がる断面略Ｕ字状で金属板を曲げ加工した樋体４３が柱材４５に支持片４６を介して取付けられている。この樋体４３の内部には必要に応じてロックウール材のような断熱部材７１を充填してもよい。
【００３３】
しかして、図３に示すように、上記水密パッキンＰの裏面は上記断熱部材７１に埋入して、水密パッキンＰが上方に不測に移動しないように位置決めをしている。図５において符号Ｘは芯材３の端面を示している。
【００３４】
ところで、水密パッキンＰの表面の下端から水密テープＰａを延出してある。この水密テープＰａは水密パッキンＰと同材質で一体に形成しても、他の材質のものを水密パッキンＰに取着してもよいものである。水密テープＰａの裏面には粘着材を塗布したテープを貼着してある。この水密テープＰａは下段の外壁材６，６の縦目地片６２，６２の突き合わせ箇所に粘着材にて接着するのである。
【００３５】
以上詳述したように、４枚の外壁材６…のコーナー部が接続される箇所に充填されたコーキング剤４４が経年変化で劣化して亀裂が入ったり、４枚の外壁材６…が独立して動いて破壊されたとしても、上段において左右に隣接する外壁材６，６の縦目地片６２，６２の下面に水密パッキンＰが位置し、上段の縦目地片６２，６２間に雨水が浸入するするのを阻止することができ、また、水密パッキンＰは、横目地側壁６５と略面一となり、下段の外壁材６６の縦目地片６２と連なり外壁材面に略直交する第１パッキン受面Ｓ１、第１パッキン受面Ｓ１に連なり外壁材面と略平行となる第２パッキン受面Ｓ２、及び横目地側壁６５に連なり外壁材面に略直交するように折曲げられた第３パッキン受面Ｓ３にそれぞれ弾接することで、損なわれたコーキング剤４４を通過した雨水が４枚の外壁材６…のコーナー部が位置する接続箇所から浸入するのを阻止することができ、芯材３の劣化を回避でき、このように、４枚の外壁材６…のコーナー部間の接続箇所における水密性を、目地部分に充填されるコーキング剤等の経年変化による劣化や、振動や地震等による亀裂発生等においても、長期にわたって良好に維持することができるのである。
【００３６】
そして、水密テープＰａを下段の外壁材６，６の縦目地片１２，１２に接着することで、下段の縦目地片６２，６２間からの雨水の浸入を阻止し、また、水密テープＰａによって水密パッキンＰの位置決めをおこなうことができるのである。
【００３７】
ところで、図１に示すように、第２パッキン受面Ｓ２に続いて第１パッキン受面Ｓ１に略平行となる第４パッキン受面Ｓ４が、第４パッキン受面Ｓ４に続いて第２パッキン受面Ｓ２に略平行となる第５パッキン受面Ｓ５が、第５パッキン受面Ｓ５に略直交し、また、釘打部２０の面に略直交する第６パッキン受面Ｓ６が、そして、第４パッキン受面Ｓ４に略平行に第７パッキン受面Ｓ７が形成されている。そして、水密パッキンＰには、第４パッキン受面Ｓ４、第５パッキン受面Ｓ５、第６パッキン受面Ｓ６、第７パッキン受面Ｓ７に弾接するための当たり面Ｐ４，Ｐ５，Ｐ６及びＰ７が形成されている。水密パッキンＰの施工状態においては、第４パッキン受面Ｓ４に当たり面Ｐ４が、第５パッキン受面Ｓ５に当たり面Ｐ５が、第６パッキン受面Ｓ６に当たり面Ｐ６が、第７パッキン受面Ｓ７に当たり面Ｐ７がそれぞれ弾接するのである。
【００３８】
【発明の効果】
請求項１においては、表裏の金属外皮間に芯材を充填するとともに上下部の一方に接続凹部を、他方に接続凸部を形成した外壁材の複数枚を接続凹部と接続凸部とを水密手段を介して接続してユニット枠に取付け、嵌合凸部をユニット枠の下端部に設けると共に、嵌合凸部と嵌合されて外壁材を鉛直方向に維持させる嵌合凹部をユニット枠の上端部に設けて外壁ユニットを構成し、外壁ユニットの上下位置の微調整を行なうための仮止め手段をユニット枠に設け、嵌合凹部に嵌合凸部を上下に摺動可能に嵌合させた状態で、上下の外壁ユニットの上位と下位の外壁材の接続凹部と接続凸部とを水密手段を介して接続し、上下左右の外壁ユニットの外壁材が構成するコーナー部間に水密パッキンを介装しているから、上下の外壁ユニット間における上下の外壁材の接続凹部と接続凸部とを水密手段を介して接続するとともに、上下左右の４枚の外壁材のコーナー部においては、水密パッキンを介装するのであり、４枚の外壁材間の接続箇所における水密性を長期にわたって良好に維持することができるという利点がある。
また、嵌合凸部を嵌合凹部に嵌合させると、外壁材を鉛直方向に維持させることができるため、上位の外壁ユニットを下位の外壁ユニットに対して屋内外方向の位置決めをした状態で接続でき、さらに仮止め手段により外壁ユニットの上下位置の微調整を行なうことができるので、上位の外壁ユニットと下位の外壁ユニットとの接続を所定通りに良好に行なうことができ、接続箇所に多大な荷重がかかるのを回避できて上下の外壁材の接続箇所の変形や損傷を確実に防止することができるという利点もある。
【００３９】
請求項２においては、表裏の金属外皮間に芯材を充填した外壁材の上端部に表側の金属外皮を裏面側に折り曲げて外壁材面に略直交する横目地側壁を形成し、横目地側壁に連ねて外壁材面に略平行となる横目地底壁を形成し、横目地底壁よりも更に外壁材の上端部に接続凹部もしくは接続凸部の一方を形成し、
外壁材の左右端部に表側の金属外皮を折り曲げて側壁を形成し、側壁から外壁材の厚さ方向の中間部から外側方に縦目地片を延出し、縦目地片の上端を裏面側に折り曲げて外壁材面とは略直交する第１パッキン受面を形成し、第１パッキン受面の先端に連続させて外壁材面と略平行となる第２パッキン受面を形成し、第１パッキン受面及び第２パッキン受面に連なるとともに横目地底壁の側端部を裏面側に折り曲げて外壁材面に略直交する第３パッキン受面を形成し、
外壁材の下端部に、横目地側壁の高さに相当する厚さの横目地形成片を垂下し、横目地形成片の下端に上記横目地側壁に対向する横目地形成壁を形成し、横目地形成片よりも裏面側に接続凹部もしくは接続凸部の他方を形成して外壁材を構成し、
左右に並設される外壁ユニット間において、下段で左右に隣接する外壁材の横目地側壁に、上段において左右に隣接する外壁材の横目地形成壁を対向させて横目地を形成し、左右に隣接する外壁材の縦目地片を略面一に並置して縦目地片の上面で左右の外壁材の側壁間に縦目地を形成し、
上下に接続される外壁ユニットにおいて、上下に対向する外壁材の接続凹部と接続凸部とを嵌合させ、
これら上下左右の４枚の外壁材のコーナー部が位置する箇所で、上段の左右の外壁材の縦目地片の表面側において、水密パッキンの下端面を第１パッキン受面に、水密パッキンの底面を第２パッキン受面に、水密パッキンの左右の側端面を左右に対向する第３パッキン受面にそれぞれ弾接させ、横目地及び縦目地にコーキング剤を充填しているから、
請求項１の効果に加えて、４枚の外壁材のコーナー部が接続される箇所に充填されたコーキング剤が経年変化で劣化して亀裂が入ったり、４枚の外壁材が独立して移動して、破壊されたとしても、上段において左右に隣接する外壁材の縦目地片の下面に水密パッキンが位置し、上段の縦目地片間に雨水が浸入するするのを阻止することができ、また、水密パッキンは、それぞれが直交して連なる第１パッキン受面、第２パッキン受面及び第３パッキン受面にそれぞれ弾接することで、損なわれたコーキング剤を通過した雨水が接続箇所に浸入するのを阻止することができ、しかして、芯材の劣化を回避でき、このように、４枚の外壁材のコーナー部間の接続箇所における水密性を、目地部分に充填されるコーキング剤等の経年変化による劣化や、振動や地震等による亀裂発生等においても、長期にわたって良好に維持することができるという利点がある。
【００４０】
請求項３においては、左右の外壁ユニットの外壁材間でコーキング剤が充填された背部にユニットの上下高さに略相当する高さで前方が開放された断面略コ字状の樋体を配設し、上下の樋体を接続樋体にて接続してあるから、請求項１又は２の効果に加えて、上下に隣接する樋体は接続樋体にて接続されていて、高層階建造物において樋体を１本物にしなくてもよく、樋の施工性を高めるという利点がある。
【図面の簡単な説明】
【図１】本発明の外壁材の接続部のシール構造における水密パッキンと外壁材との関係を示す概略斜視図である。
【図２】施工途中の概略斜視図である。
【図３】施工途中の一部破断した概略斜視図である。
【図４】上下の外壁材間に横目地を形成する外壁材嵌合状態と水密パッキンとの関係を示す概略断面図である。
【図５】水密パッキンと外壁材との関係を示す概略正面図である。
【図６】同上の外壁ユニットの接続を示す部分側面図である。
【図７】同上のクレーン工法を示す概略斜視図である。
【図８】同上の仮止め手段の斜視図である。
【図９】同上の摺動嵌合構造を示す斜視図である。
【図１０】同上の水平断面図である。
【図１１】同上の拡大断面図である。
【図１２】同上の外壁ユニット及び樋体の施工順序を示す説明図である。
【図１３】同上の樋体を接続する作用を示す斜視図である。
【図１４】同上の樋体を接続する作用を示し、(ａ)は接続後の正面図、(ｂ)は接続前の側面図、(ｃ)は接続後の側面図である。
【符号の説明】
１表側の金属外皮
２裏側の金属外皮
３芯材
４接続凹部
５接続凸部
６外壁材
７ユニット枠
Ａ外壁ユニット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sealing structure for an outer wall of a building, and more particularly, to a sealing structure for an outer wall of a high-rise building, for example, in which an outer wall unit with an outer wall material is disposed vertically and horizontally. In addition, the present invention relates to a technique for maintaining good water-tightness at a connection portion between corner portions of outer wall materials adjacent to each other in the vertical and horizontal directions over a long period of time.
[0002]
[Prior art]
Recently, to construct the outer wall of the building, as shown in FIG. 4, the core material 3 is filled between the metal shells 1 and 2 on the front and back, and the connection concave portion 4 is provided on one of the upper and lower portions, and the connection convex portion 5 is provided on the other side. The use of the outer wall material 6 having the shape of the wall is remarkably enhanced because the external appearance of the building can be remarkably enhanced and the heat insulating property, weather resistance and the like can be sufficiently enhanced.
[0003]
By the way, each of the outer wall materials 6 as described above is fixed to the wall base with the fixture 17 and requires a huge amount of scaffolding. In a large building, it takes a lot of work and prolongs the construction period. Yes, in high-rise buildings, it is difficult to construct a scaffold, and construction may be difficult.
[0004]
As a means for solving such a problem, a method has been proposed and proposed in which a large number of outer wall materials are attached to a unit frame to assemble a wall unit, and the wall unit is lifted and connected by a crane.
[0005]
[Problems to be solved by the invention]
However, in such a construction method, it is difficult to ensure water tightness at the connection portion between the corner portions of the four outer wall materials adjacent to each other in the vertical and horizontal directions between the wall units arranged side by side in the vertical and horizontal directions. .
[0006]
In particular, at the connection location where the corner portions of the four outer wall materials are located, the four outer wall materials individually vibrate or change their positions, and the caulking agent in the corner portions easily cracks and is destroyed. It is easy and the water tightness in the corner portion is likely to be impaired.
[0007]
The present invention has been made in view of such a problem, and between the outer wall units arranged side by side in the upper, lower, left, and right directions, the water tightness at the connection location between the corner portions of the four outer wall materials adjacent to the upper, lower, left, and right is provided. It is an object of the present invention to provide a sealing structure for an outer wall of a building that can be well maintained over a long period of time.
[0008]
[Means for Solving the Problems]
In claim 1, the core 3 is filled between the metal shells 1 and 2 on the front and back sides, and a plurality of outer wall members 6 each formed with a connection recess 4 on one of the upper and lower parts and a connection protrusion 5 on the other are connected to each other. 4 and the connecting projection 5 are connected to the unit frame 7 through a watertight means.The fitting convex portion 10 is provided at the lower end portion of the unit frame 7, and the fitting concave portion 9 that is fitted with the fitting convex portion 10 and maintains the outer wall material 6 in the vertical direction is provided at the upper end portion of the unit frame 7.Configure the outer wall unit A,In the state in which the temporary fixing means 13 for finely adjusting the vertical position of the outer wall unit A is provided in the unit frame 7 and the fitting convex portion 10 is slidably fitted in the fitting concave portion 9,Corners formed by connecting the connection concave portions 4 and the connection convex portions 5 of the upper and lower outer wall materials 6 of the upper and lower outer wall units A, A through watertight means, and forming the outer wall materials 6 of the upper, lower, left and right outer wall units A. A watertight packing P is interposed between the parts. According to such a configuration, the connection concave portions 4 and the connection convex portions 5 of the upper and lower outer wall members 6 and 6 between the upper and lower outer wall units A and A are connected via the watertight means, and the upper, lower, left and right four sheets are connected. In the corner portion of the outer wall material 6, the water-tight packing P is interposed, and the water-tightness at the connection portion between the four outer wall materials 6 can be maintained well over a long period of time.
Moreover, when the fitting convex part 10 is fitted to the fitting concave part 9, the outer wall material 6 can be maintained in the vertical direction, so that the upper outer wall unit A can be moved indoors and outdoors with respect to the lower outer wall unit A. Can be connected with positioning. In addition, since the vertical position of the outer wall unit A can be finely adjusted by the temporary fixing means 13, the connection between the upper outer wall unit A and the lower outer wall unit A can be satisfactorily performed as prescribed. It is possible to avoid applying a great load to the place, and it is possible to reliably prevent deformation and damage of the connection place of the upper and lower outer wall materials 6.
[0009]
In claim 2, a horizontal joint side wall 65 that is substantially orthogonal to the outer wall material surface by bending the front metal shell 1 to the back side at the upper end portion of the outer wall material 6 filled with the core material 3 between the front and back metal skins 1, 2. A horizontal joint base wall 66 is formed which is connected to the horizontal joint base wall 65 and is substantially parallel to the outer wall material surface. The connection concave portion 4 or the connection convex portion 5 is formed at the upper end portion of the outer wall member 6 further than the horizontal joint base wall 66. Forming one side,
The side wall 61 is formed by bending the front side metal shell 1 at the left and right end portions of the outer wall material 6, and the vertical joint piece 62 extends from the side wall 61 to the outer side from the middle portion in the thickness direction of the outer wall material 6. A first packing receiving surface S1 that is substantially orthogonal to the outer wall material surface is formed by bending the upper end of 62 to the back surface side, and a second packing that is continuous with the front end of the first packing receiving surface S1 and substantially parallel to the outer wall material surface. A third packing receiving surface S3 that forms a receiving surface S2, is connected to the first packing receiving surface S1 and the second packing receiving surface S2, and bends the side end portion of the horizontal joint bottom wall 66 to the back surface side so as to be substantially orthogonal to the outer wall material surface. Form the
A horizontal joint forming piece 70 having a thickness T corresponding to the height H of the horizontal joint side wall 65 is suspended from the lower end portion of the outer wall material 6, and the horizontal joint facing the horizontal joint side wall 65 at the lower end of the horizontal joint forming piece 70. Forming the formation wall 69, forming the other of the connection concave portion 4 or the connection convex portion 5 on the back surface side of the horizontal joint forming piece 70 to constitute the outer wall material 6;
Between the outer wall units A, A arranged side by side on the left and right, the horizontal joint side walls 65, 65 of the outer wall materials 6, 6 adjacent to the left and right in the lower stage, and the horizontal joint forming walls of the outer wall materials 6, 6 adjacent to the left and right in the upper stage 69, 69 are opposed to each other to form a horizontal joint 63, and the vertical joint pieces 62, 62 of the outer wall materials 6, 6 adjacent to the left and right are arranged substantially flush with each other, and the left and right outer walls on the upper surface of the vertical joint pieces 62, 62. A vertical joint 64 is formed between the side walls 61 and 61 of the materials 6 and 6,
In the outer wall units A and A connected vertically, the connection concave portions 4 and the connection convex portions 5 of the outer wall materials 6 and 6 facing vertically are fitted,
The lower end surface P1 of the watertight packing P is formed on the surface side of the vertical joint pieces 62, 62 of the upper left and right outer wall members 6 and 6 at the positions where the corner portions of the four upper and lower outer wall members 6 are located. The bottom surface P2 of the watertight packing P is elastically contacted with the first packing receiving surface S1, the second packing receiving surface S2 and the left and right side end surfaces P3, P3 of the watertight packing P are elastically contacted with the third packing receiving surfaces S3, S3 facing left and right. The caulking agent 44 is filled in the horizontal joint 63 and the vertical joint 64.
[0010]
According to such a configuration, the caulking agent 44 filled in the places where the corner portions of the four outer wall members 6 are connected to each other deteriorates due to aging and cracks, or the four outer wall members 6. Even if it is moved independently and destroyed, the watertight packing P is located on the lower surface of the vertical joint piece 62 of the outer wall materials 6 and 6 adjacent to the left and right in the upper stage, and rainwater is placed between the upper vertical joint pieces 62 and 62. And the water-tight packing P is in elastic contact with the first packing receiving surface S1, the second packing receiving surface S2, and the third packing receiving surface S3, respectively. Therefore, it is possible to prevent rainwater that has passed through the damaged caulking agent 44 from entering the connection portion, and thus, deterioration of the core material can be avoided, and thus the corners of the four outer wall materials 6. Water tightness at the connection between parts Deterioration or due to aging, such as caulk 44 filled in joint portions, even in the cracks and the like due to vibration or earthquake, can be maintained satisfactorily for a long time.
[0011]
In claim 3, the cross-section of the right and left outer wall units A, A, in which the front part is opened at a height substantially equivalent to the vertical height of the unit on the back filled with the caulking agent 44 between the outer wall materials 6, 6. A character-shaped casing 43 is provided, and upper and lower casings 43 are connected by a connecting casing 51. According to such a configuration, the upper and lower adjacent casings 43 and 43 are connected by the connecting casing 51, and it is not necessary to make one casing 43 in a high-rise building, so To increase.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. FIG. 6 is a partial side view showing the connection of the outer wall unit, and FIG. 7 is a schematic perspective view showing the crane method.
[0013]
The outer wall unit A is attached to, for example, an angle member with a horizontal frame 18 spaced apart in the vertical direction, a channel material as a trunk edge 15 attached to the horizontal frame 18, and the horizontal frame 18 welded to a vertical frame 16 with a left-right interval separated. The unit frame 7 is configured by connecting them equally, and a plurality of horizontally long outer wall members 6 are fixed to the trunk edge 15 of the unit frame 7 by a fixing tool 17. The outer wall material 6 is, for example, a sheet having a horizontal dimension of 3960 mm and a vertical dimension of 910 mm, for example, seven pieces attached up and down. The height of the outer wall unit A is set to a height corresponding to the height of each floor of the high-rise building. Such an outer wall unit A can be assembled at an arbitrary place such as a construction site of a high-rise building or a factory. By the way, in the outer wall unit A, without attaching the plurality of outer wall members 6 at the upper and lower intermediate portions, a continuous window is formed in a structural building by inserting a sash 39 into this portion and inserting a window glass. It is also possible.
[0014]
As shown in FIG. 4, the outer wall material 6 is filled with a core material 3 made of an inorganic material such as rock wool, for example, between the front and back metal skins 1 and 2, and a connection recess 4 is connected to the upper part and the other. The convex part 5 is formed. A fixed recess 20 is formed in the front portion on the connection concave portion 4 side, and a cover portion 21 is formed on the front portion on the connection convex portion 5 side. Then, the fixing tool 17 is driven into the fixing recess 20 to fix the upper portion of the outer wall material 6 to the trunk edge 15, and the connection convex portion 5 of the upper outer wall material 6 is fitted and connected to the connection concave portion 4. In this case, the cover 21 is engaged with the fixing recess 20 to hide the fixing tool 17. A seal packing 22 as a watertight means is interposed at such a connecting portion in the vertical direction to ensure sufficient watertightness.
[0015]
As shown in FIGS. 6 and 7, a receiving member 23 formed with a fitting recess 9 allowing sliding is fixed to the upper end portion of the vertical frame 16 by a bolt 24 and protrudes upward. The fitting recess 9 allowing sliding is provided with a sliding groove 25 in the vertical direction and an introduction groove 26 opened in a substantially V shape. Bolts 28 and guide pins 29 that can be fastened by tightening are provided at the lower end of the vertical frame 16, and two bolts 28 and guide pins 29 provide the vertical direction. Further, the suspension units 11 and 11 are attached to the vertical frames 16 and 16 at both ends, and the hook 27 of the crane is hooked so that the outer wall unit A can be suspended.
[0016]
A temporary fixing means 13 capable of fine adjustment in the vertical direction is provided on the vertical frame 16 below the hanging portion 11. Specifically, a set nut 31 is attached to the screw hole of the angle member 30 and the adjustment bolt 32 is screwed. On the other hand, on the structure 33 side on the building side, an angle receiving member 36 is attached to the beam member 35 constituting the floor 34 of each floor so as to face the adjustment bolt 32 in the vertical direction.
[0017]
According to such a configuration, first, the outer wall unit A lifted by the crane is lowered to the first floor portion of the high-rise building, and the angle material receiving member 36 on the structure 33 side is interposed via the arc-shaped leaf spring 37. The outer wall unit A is fixed at the upper and lower parts by bolts 38. Next, when the outer wall unit A is constructed on the second floor, the fitting convex portion 10 of the upper outer wall unit A is slid into the fitting concave portion 9 in which the V-shaped introduction groove portion 26 in the lower outer wall unit A is formed. By dynamically fitting, the upper outer wall unit A can be positioned and connected to the lower outer wall unit A in the indoor / outdoor direction, and the crane method can be easily performed.
[0018]
Thus, the bolt 28 and the guide pin 29 which are the fitting convex part 10 are connected to the sliding groove 25 of the fitting concave part 9 which permits sliding while maintaining the vertical direction. In this case, the upper and lower outer wall units A and A and the lower outer wall unit A determine the degree of fitting between the upper and lower outer wall members 6 and 6 between the connecting concave portion 4 and the connecting convex portion 5, and project the adjustment bolt 31 downward. Fine adjustment in the vertical direction is performed, and the adjustment bolt 31 is applied to the receiving material 36 and temporarily fixed before the connection concave portion 4 and the connection convex portion 5 are completely connected. Thus, when connecting the upper and lower outer wall units A, A, it is possible to reliably prevent the load of the upper outer wall unit A from being applied to the lower outer wall unit A, and therefore the upper and lower outer wall materials. The connection recesses 6 and 6 can be connected to the connection protrusions 5 in a predetermined manner, and it is possible to avoid applying a great load to the connection locations, so that the connection locations of the upper and lower outer wall materials 6 and 6 can be avoided. Deformation and damage can be reliably prevented.
[0019]
In this case, the temporary fixing means 13 is located on the indoor side, and is provided at a position where the connection between the upper and lower connecting concave portions 4 and the connecting convex portions 5 can be visually observed when the temporary fixing means 13 is operated. According to such a configuration, when performing fine adjustment of the fine adjustment portion 14 in the temporary fixing means 13, the upper and lower outer wall materials 6, 6 are observed in the upper and lower outer wall materials 6, while observing the connection status between the connection convex portions 5. Fine adjustment can be performed, and the connection concave portions 4 and the connection convex portions 5 of the upper and lower outer wall materials 6 and 6 can be connected in a predetermined manner.
[0020]
10 shows a horizontal cross-sectional view, FIG. 11 shows an enlarged cross-sectional view, and shows a watertight connection structure of the outer wall units A and A in the lateral direction.
[0021]
A side end piece 61 is bent at the lateral end of the outer wall member 6 so as to face the core member 3, and a receiving piece 62 is bent following the side end piece 61. A seal packing 42 is interposed between the side end piece 61 and the core material 3. Both ends of a flat U-shaped housing 43 are press-fitted into the back portions of the left and right seal packings 42, 42. The side end pieces 61, 61 of the adjacent outer wall materials 6, 6 are filled with a modified silicone resin as a caulking agent 44. The housing 43 is supported by the column member 45 via a support piece 46. Such a frame 43 and the pillar material 45 are installed in each floor unit. FIG. 12 shows the order of construction of the column member 45 including the outer wall unit A and the casing 43, which is performed in the order of the lower floor side A → B → C and the upper floor side D → E → F. By the way, the pillar material 45 holding the housing 43 is suspended by a crane to a predetermined position on each floor, the pillar material 45 is pushed forward by an operator, and both end pieces of the housing 43 are sealed with packings 42 and 42. It is press-fitted into.
[0022]
13 and 14 show the connection structure of the upper and lower housings 43, 43. FIG. The connection housing 51 includes a small-diameter flange 51 a that is inserted into the lower housing 43 and a large-diameter flange 51 b that is fitted outside the upper housing 43. Thus, the small-diameter collar 51a is fitted inside the lower casing 43, and the large-diameter collar 51b is fitted outside the upper casing 43. In this case, as shown by the phantom lines in FIG. 13, after the connecting housing 51 is tilted backward so that the upper portion is farther from the housing 43 than the lower portion, the small-diameter flange portion 51 a is inserted into the lower housing 43. Then, the connecting housing 51 is lowered and rotated forward with the engaging position with the lower housing 43 as a fulcrum, so that the large-diameter collar 51b is fitted outside the upper housing 43.
[0023]
By the way, in the outer wall units A arranged side by side in the vertical and horizontal directions, a corner portion where the four outer wall materials 6 intersect is intended to provide a sufficient water-tight seal, which will be described in detail below. First, the configuration of the outer wall material 6 will be described.
[0024]
At both ends of the front and back metal skins 1 and 2 sent out by the feeding device, a connecting convex skin portion 5a and a connecting concave skin portion 4a are formed by roll forming, and between these two metal skins 1 and 2 Are loaded with rock wool material and calcium silicate as the core material 3. Calcium silicate has high fire resistance and mechanical strength, and is loaded into the connecting convex portion outer skin portion 5a and the connecting concave portion outer shell portion 4a to enhance the fire resistance and mechanical strength of the connecting convex portion 5 and the connecting concave portion 4. The two metal skins 1 and 2 are formed with a slight gap d in the connection convex part 5 and the connection concave part 4 so as to avoid heat conduction (heat bridge) between the two metal skins 1 and 2. I have to.
[0025]
The metal skin 1 on the front side is bent to the back surface side at the upper end portion of the outer wall material 6 to form a horizontal joint side wall 65 substantially orthogonal to the outer wall material surface, and the horizontal joint base is connected to the horizontal joint side wall 65 and substantially parallel to the outer wall material surface. A wall 66 is formed, the fixed recess 20 is formed one step lower than the horizontal joint bottom wall 66, and the connection recess 4 is formed at the upper end of the outer wall material 6 further than the fixed recess 20.
[0026]
A horizontal joint forming piece 70 having a thickness T corresponding to the height H of the horizontal joint side wall 65 is suspended from the lower end portion of the outer wall material 6, and the horizontal joint facing the horizontal joint side wall 65 at the lower end of the horizontal joint forming piece 70. A forming wall 69 is formed, and the connecting convex portion 5 is formed on the back surface side of the horizontal joint forming piece 70.
[0027]
At the left and right ends of the outer wall material 6, the front side metal shell 1 is bent to form a side wall 61, and a vertical joint piece 62 extends from the side wall 61 to the outer side from the middle portion in the thickness direction of the outer wall material 6. . A first packing receiving surface S1 that is substantially orthogonal to the outer wall material surface is formed by bending the upper end of the vertical joint piece 62 to the back surface side. A second packing receiving surface S2 is formed to be continuous with the front end of the first packing receiving surface S1 and substantially parallel to the outer wall material surface. A third packing receiving surface S3 that is continuous with the first packing receiving surface S1 and the second packing receiving surface S2 and that is bent at the side end portion of the horizontal joint base wall 66 to the back surface side and substantially orthogonal to the outer wall material surface is formed.
[0028]
Long and narrow seal packings 42 and 42 are interposed between the side wall 61 of the core member 3 at the left and right end portions of the outer wall member 6. In this way, the outer wall material 6 is configured.
[0029]
As shown in FIG. 4, the outer wall materials 6 and 6 are fixed to the trunk edge 15 with bolts 17 at the lower side of the nailing portion 20, and the vertical joints of the outer wall materials 6 and 6 are fixed. The vertical joints 64 are formed between the side walls 61 and 61 of the left and right outer wall members 6 and 6 on the upper surface of the vertical joint pieces 62 and 62 with the pieces 62 and 62 juxtaposed substantially flush with each other.
[0030]
Next, on one of the outer wall members 6, 6 adjacent to the left and right, the upper connection convex portion 5 is fitted into the lower connection concave portion 4, and the upper joint wall 65 of the lower outer wall member 6 is The lateral joint forming wall 69 of the outer wall material 6 is opposed to form a horizontal joint 63, and the connection convex portion 5 of the upper outer wall material 6 is fitted into the connection concave portion 4 of the lower outer wall material 6.
[0031]
In this way, on the surface side where the four outer wall members 6 intersect, the bottom end face P1 of the cubic watertight packing P which is a thick strip plate is used as the first packing receiving face S1, and the bottom face P2 of the watertight packing P is used as the second packing receiving. The left and right side end faces P3 and P3 of the watertight packing P are brought into elastic contact with the surface S2 to the third packing receiving faces S3 and S3 facing left and right, respectively.
[0032]
By the way, as shown in FIG. 3, a metal plate having a substantially U-shaped cross section straddling the seal packings 42, 42 of the left and right outer wall members 6, 6 is provided on the back of the vertical joint 64 of the left and right outer wall members 6, 6. A bent housing 43 is attached to the column member 45 via a support piece 46. The inside of the housing 43 may be filled with a heat insulating member 71 such as a rock wool material as necessary.
[0033]
Therefore, as shown in FIG. 3, the back surface of the watertight packing P is embedded in the heat insulating member 71 and positioned so that the watertight packing P does not move upward unexpectedly. In FIG. 5, the symbol X indicates the end face of the core material 3.
[0034]
By the way, the watertight tape Pa is extended from the lower end of the surface of the watertight packing P. The watertight tape Pa may be integrally formed of the same material as the watertight packing P, or another material may be attached to the watertight packing P. The tape which apply | coated the adhesive material is stuck on the back surface of the watertight tape Pa. This water-tight tape Pa is adhered to the abutting portion of the vertical joint pieces 62, 62 of the lower outer wall materials 6, 6 with an adhesive material.
[0035]
As described in detail above, the caulking agent 44 filled in the places where the corner portions of the four outer wall members 6 are connected to each other is deteriorated due to aging and cracked, or the four outer wall members 6 are independent. Even if it is moved and destroyed, the watertight packing P is located on the lower surface of the vertical joint pieces 62 and 62 of the outer wall materials 6 and 6 adjacent to the left and right in the upper stage, and rainwater flows between the upper vertical joint pieces 62 and 62. The water-tight packing P is substantially flush with the horizontal joint side wall 65, is connected to the vertical joint piece 62 of the lower outer wall member 66, and is substantially perpendicular to the outer wall member surface. The receiving surface S1, the second packing receiving surface S2 that is connected to the first packing receiving surface S1 and substantially parallel to the outer wall material surface, and the third packing that is connected to the horizontal joint side wall 65 and bent substantially orthogonally to the outer wall material surface. Damaged by elastic contact with each receiving surface S3 The rain water that has passed through the king agent 44 can be prevented from entering from the connecting portion where the corner portions of the four outer wall materials 6 are located, and the deterioration of the core material 3 can be avoided. Maintain good water-tightness at the joints between the corners of the outer wall material 6 over a long period of time even when the caulking agent filled in the joints deteriorates over time or cracks occur due to vibration or earthquake. Can do it.
[0036]
And by adhering the watertight tape Pa to the vertical joint pieces 12 and 12 of the lower outer wall materials 6 and 6, the infiltration of rainwater between the lower vertical joint pieces 62 and 62 is prevented, and the watertight tape Pa is used. The watertight packing P can be positioned.
[0037]
By the way, as shown in FIG. 1, the 4th packing receiving surface S4 which becomes substantially parallel to the 1st packing receiving surface S1 following the 2nd packing receiving surface S2 is the 2nd packing receiving surface following the 4th packing receiving surface S4. A fifth packing receiving surface S5 that is substantially parallel to the surface S2 is substantially orthogonal to the fifth packing receiving surface S5, and a sixth packing receiving surface S6 that is substantially orthogonal to the surface of the nailing portion 20 is the fourth packing receiving surface S6. A seventh packing receiving surface S7 is formed substantially parallel to the packing receiving surface S4. The watertight packing P has contact surfaces P4, P5, P6 and P7 for elastic contact with the fourth packing receiving surface S4, the fifth packing receiving surface S5, the sixth packing receiving surface S6, and the seventh packing receiving surface S7. Is formed. In the construction state of the watertight packing P, the contact surface P4 contacts the fourth packing receiving surface S4, the contact surface P5 contacts the fifth packing receiving surface S5, the contact surface P6 contacts the sixth packing receiving surface S6, and the contact surface contacts the seventh packing receiving surface S7. P7 is in elastic contact with each other.
[0038]
【The invention's effect】
In claim 1, a core material is filled between the front and back metal skins, and a plurality of outer wall materials in which a connection concave portion is formed on one of the upper and lower portions and a connection convex portion is formed on the other are connected to the connection concave portion and the connection convex portion. Connected by means and attached to the unit frameThe fitting convex portion is provided at the lower end portion of the unit frame, and the fitting concave portion that is fitted with the fitting convex portion and maintains the outer wall material in the vertical direction is provided at the upper end portion of the unit frame.Configure the outer wall unit,In the state where the temporary fixing means for fine adjustment of the vertical position of the outer wall unit is provided in the unit frame, and the fitting convex part is slidably fitted in the fitting concave part,The upper and lower outer wall units of the upper and lower outer wall units are connected to the connection concave portions and the connection convex portions through water-tight means, and water-tight packing is interposed between the corner portions formed by the outer wall materials of the upper and lower outer wall units. Therefore, the upper and lower outer wall members between the upper and lower outer wall units are connected to each other through the water-tight means and the water-tight packing is provided at the corners of the four upper and lower outer wall members. Therefore, there is an advantage that the watertightness at the connection portion between the four outer wall materials can be maintained well over a long period of time.
In addition, since the outer wall material can be maintained in the vertical direction by fitting the fitting convex part into the fitting concave part, the upper outer wall unit is positioned indoors and outdoors with respect to the lower outer wall unit. Further, the upper and lower positions of the outer wall unit can be finely adjusted by means of temporary fixing means, so that the upper outer wall unit and the lower outer wall unit can be connected well as prescribed, and the connection location is greatly reduced There is also an advantage that it is possible to avoid excessive load and to surely prevent deformation and damage of the connecting portion of the upper and lower outer wall materials.
[0039]
According to claim 2, a lateral joint side wall substantially perpendicular to the outer wall material surface is formed by bending the front side metal skin on the back surface side at the upper end portion of the outer wall material filled with the core material between the front and back metal skins. To form a horizontal joint base wall that is substantially parallel to the outer wall material surface, further forming one of the connection concave portion or the connection convex portion at the upper end portion of the outer wall material further than the horizontal joint base wall,
Bend the front side metal skin to the left and right ends of the outer wall material to form side walls, and extend the vertical joint pieces from the side walls to the outside from the middle in the thickness direction of the outer wall material, with the upper ends of the vertical joint pieces on the back side A first packing receiving surface that is bent to be substantially orthogonal to the outer wall material surface is formed, and a second packing receiving surface that is continuous with the tip of the first packing receiving surface and is substantially parallel to the outer wall material surface is formed. A third packing receiving surface that is continuous with the receiving surface and the second packing receiving surface and bends the side end portion of the horizontal joint base wall to the back surface side to be substantially orthogonal to the outer wall material surface;
A horizontal joint forming piece having a thickness corresponding to the height of the horizontal joint side wall is suspended from the lower end portion of the outer wall material, and a horizontal joint forming wall facing the horizontal joint side wall is formed at the lower end of the horizontal joint forming piece. Configure the outer wall material by forming the other side of the connection recess or connection projection on the back side of the ground forming piece,
Between the outer wall units arranged side by side on the left and right, a horizontal joint is formed by facing the horizontal joint side walls of the outer wall material adjacent to the left and right in the lower stage, and the horizontal joint forming wall of the outer wall material adjacent to the left and right in the upper stage. Vertical joints of adjacent outer wall materials are juxtaposed substantially flush with each other to form vertical joints between the side walls of the left and right outer wall materials on the upper surface of the vertical joint pieces,
In the outer wall unit connected up and down, the connection concave portion and the connection convex portion of the outer wall material facing up and down are fitted,
At the location where the corners of these four outer wall members on the upper, lower, left and right sides are located, on the surface side of the vertical joint of the upper left and right outer wall members, the lower end surface of the watertight packing is the first packing receiving surface, and the bottom surface of the watertight packing Since the left and right side end surfaces of the water-tight packing are elastically contacted with the third packing receiving surface facing the left and right, respectively, and the caulking agent is filled in the horizontal joint and the vertical joint.
In addition to the effect of claim 1, the caulking agent filled in the place where the corner portions of the four outer wall materials are connected deteriorates due to aging and cracks, or the four outer wall materials move independently. Even if it is destroyed, the watertight packing is located on the lower surface of the vertical joint of the outer wall material adjacent to the left and right in the upper stage, and it is possible to prevent rainwater from entering between the vertical joints of the upper stage, In addition, the watertight packing is in contact with the first packing receiving surface, the second packing receiving surface, and the third packing receiving surface, which are orthogonal to each other, so that rainwater that has passed through the damaged caulking agent enters the connection location. However, the deterioration of the core material can be avoided, and thus the water-tightness at the connection portion between the corner portions of the four outer wall materials can be reduced with the caulking agent filled in the joint portion, etc. Deterioration due to aging , Even in the cracks and the like due to vibration or earthquake or the like, there is an advantage that it is possible to maintain for a long time.
[0040]
According to a third aspect of the present invention, a housing having a substantially U-shaped cross section with the front open at a height substantially corresponding to the vertical height of the unit is disposed on the back portion filled with the caulking agent between the outer wall materials of the left and right outer wall units. Since the upper and lower housings are connected by the connecting housing, in addition to the effect of claim 1 or 2, the upper and lower adjacent housings are connected by the connecting housing, and the high-rise building is constructed. There is an advantage that the construction of the kite is improved without having to use a single cabinet for the kit.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a relationship between a watertight packing and an outer wall material in a sealing structure of a connecting portion of an outer wall material according to the present invention.
FIG. 2 is a schematic perspective view during construction.
FIG. 3 is a schematic perspective view with a part broken away during construction.
FIG. 4 is a schematic cross-sectional view showing the relationship between an outer wall material fitting state in which a horizontal joint is formed between upper and lower outer wall materials and a watertight packing.
FIG. 5 is a schematic front view showing the relationship between the watertight packing and the outer wall material.
FIG. 6 is a partial side view showing the connection of the outer wall unit of the above.
FIG. 7 is a schematic perspective view showing the crane method of the above.
FIG. 8 is a perspective view of the temporary fixing means.
FIG. 9 is a perspective view showing the same sliding fitting structure.
FIG. 10 is a horizontal sectional view of the above.
FIG. 11 is an enlarged cross-sectional view of the above.
FIG. 12 is an explanatory view showing a construction order of the outer wall unit and the casing according to the above.
FIG. 13 is a perspective view showing an operation of connecting the same housings.
14A and 14B show the operation of connecting the same housings, FIG. 14A is a front view after connection, FIG. 14B is a side view before connection, and FIG. 14C is a side view after connection.
[Explanation of symbols]
1 Front side metal shell
2 Metal skin on the back side
3 Core material
4 Connection recess
5 Connection convex part
6 Exterior wall materials
7 Unit frame
A Exterior wall unit

Claims

Fill the core between the front and back metal shells and connect a plurality of outer wall materials with connecting recesses on one of the upper and lower parts and connecting protrusions on the other, connecting the connecting recesses and connecting protrusions via watertight means Attached to the unit frame ,
A fitting convex portion is provided at the lower end portion of the unit frame, and a fitting concave portion that is fitted with the fitting convex portion and maintains the outer wall material in the vertical direction is provided at the upper end portion of the unit frame to constitute the outer wall unit.
Temporary fixing means for fine adjustment of the vertical position of the outer wall unit is provided on the unit frame,
In a state where the fitting convex portion is slidably fitted to the fitting concave portion, the upper and lower outer wall unit upper and lower outer wall material connecting concave portions and the connecting convex portion are connected via a watertight means, A sealing structure for an outer wall of a building, characterized in that a watertight packing is interposed between corner portions formed by outer wall materials of upper, lower, left and right outer wall units.

The top wall of the outer wall material filled with the core material between the front and back metal shells is bent to the back side to form a horizontal joint side wall that is substantially perpendicular to the outer wall surface, and the outer wall surface is connected to the side joint side wall. A horizontal joint base wall that is substantially parallel to the horizontal joint base wall, and one of the connection recess or connection convex part is formed at the upper end of the outer wall material further than the horizontal joint base wall, and the metal skin on the front side is bent at the left and right ends of the outer wall material. Forming a side wall, extending a vertical joint piece from the side wall in the thickness direction of the outer wall material to the outside, bending the upper end of the vertical joint piece to the back side, and a first packing receiver substantially orthogonal to the outer wall material surface Forming a surface, forming a second packing receiving surface that is continuous with the front end of the first packing receiving surface and is substantially parallel to the outer wall material surface, and is connected to the first packing receiving surface and the second packing receiving surface and the horizontal joint base wall A third packing receiver that is bent substantially at the back side and is substantially perpendicular to the outer wall surface. A horizontal joint forming piece having a thickness corresponding to the height of the side joint side wall is suspended from the lower end portion of the outer wall material, and a horizontal joint forming wall facing the side joint side wall is formed at the lower end of the side joint forming piece. The outer wall material is formed by forming the other of the connection concave portion or the connection convex portion on the back surface side of the horizontal joint forming piece, and between the outer wall units arranged side by side on the left and right sides of the outer wall material adjacent to the left and right. A horizontal joint is formed by facing the horizontal joint-forming walls of the outer wall material adjacent to the left and right in the upper stage on the side wall of the horizontal joint, and the vertical joint pieces of the outer wall materials adjacent to the left and right are juxtaposed flush with each other. A vertical joint is formed between the side walls of the left and right outer wall materials on the upper surface, and in the outer wall unit connected up and down, the connecting concave and convex portions of the upper and lower outer wall materials are fitted to each other, and the upper, lower, left and right four sheets The vertical joints of the left and right outer wall materials in the upper stage where the corner of the outer wall material is located The bottom surface of the watertight packing is the first packing receiving surface, the bottom surface of the watertight packing is the second packing receiving surface, and the left and right side end surfaces of the watertight packing are the left and right facing third packing receiving surfaces. 2. The sealing structure for an outer wall of a building according to claim 1, wherein a caulking agent is filled in the horizontal joint and the vertical joint.

Arranged on the back of the outer wall materials of the left and right outer wall units are caulking agents filled with caulking agents that are substantially U-shaped in cross section with the front open at a height substantially equivalent to the vertical height of the outer wall units. The sealing structure for an outer wall of a building according to claim 1 or 2, wherein the casings are connected by a connecting casing.