JP4083063B2

JP4083063B2 - Laminated glass support structure

Info

Publication number: JP4083063B2
Application number: JP2003108879A
Authority: JP
Inventors: 聡史上沢; 努舟岡
Original assignee: Asahi Glass Co Ltd
Current assignee: AGC Inc
Priority date: 2003-04-14
Filing date: 2003-04-14
Publication date: 2008-04-30
Anticipated expiration: 2023-04-14
Also published as: JP2004316154A

Description

【０００１】
【発明の属する技術分野】
本発明は合わせガラス支持構造に関する。
【０００２】
【従来の技術】
板ガラスは、一般に金属サッシ枠に取り付けられて支持される。しかし、金属サッシ枠は板ガラス面より突出して設けられるので、建物全体として意匠性が劣る。そのため、近年において、板ガラス面より突出する部材がない板ガラス支持構造の開発が盛んである。その例として、構造シリコーン構法（以下、「ＳＳＧ構法」という）や孔あき強化ガラス構法（以下、「ＤＰＧ構法」という）が知られている。
【０００３】
図１４は、ＳＳＧ構法の一例である（特許文献１）。この構法は、板ガラス１１を実質上支持するアルミニウム等からなる金属部材１２と、この金属部材１２と板ガラス１１とを接合するシリコーンシーラント等からなる構造シール１３とにより構成され、板ガラス１１と室内側の金属部材１２は、構造シール１３で接着され、バックアップ材１４が設けられる。そのため、ＳＳＧ構法によれば、金属サッシ等の金属部材を建築物外面に突出させないでパネル（板ガラス）を保持でき意匠性が向上する。
【０００４】
図１５は、ＤＰＧ構法の一例である（特許文献２）。この構法は、強化ガラス１５の四隅に皿孔が加工され、この皿孔に嵌合する皿ボルト１６が支持金物１７に取り付けられて板ガラスが支持される。このＤＰＧ構法によっても、板ガラス面より建築物外面に突出する部材がないため、意匠性が向上する。
【０００５】
しかし、ＳＳＧ構法は板ガラスと金属部材とを構造シールで接着して板ガラスを支持するため、シール部分の長期耐久性の問題がある。
【０００６】
また、ＤＰＧ構法はガラス表面に皿ボルトの表面が見えるため、該部分の意匠性が劣り、支持金物が見えない構法を望む声もある。また、ＤＰＧ構法は室内側に支持金物が大きく突出するため、清掃に手間がかかることも問題となっている。
【０００７】
【特許文献１】
特開平５−０１８０３０号公報
【特許文献２】
特開平５−２４８０１８号公報
【０００８】
【発明が解決しようとする課題】
本発明は前述の課題を解決すべくなされたものであり、ガラス表面より取付部材が突出したり露出したりせず意匠性に優れ、長期耐久性も兼ね備えた合わせガラス支持構造の提供を目的とする。
【０００９】
【課題を解決するための手段】
本発明は、対向する複数枚の板ガラスが中間膜からなる中間接着層を介して接着されてなる合わせガラスを支持する合わせガラス支持構造であって、合わせガラスの端縁部の中間接着層の一部が切除されて中間接着層の部分にのみ溝部が形成され、溝部に支持部材の差込部が挿入され、支持部材が躯体に支持されることによって合わせガラスを支持することを特徴とする合わせガラス支持構造を提供する。
【００１０】
この構成によれば、簡単な構造で、ガラス表面より取付部材（支持部材）が突出したり露出したりすることなく意匠性に優れ、長期耐久性も兼ね備えた合わせガラス支持構造が得られる。また、ガラスを支持する取付部材が、ガラス表面を貫通して突出したり露出しないので、ガラス表面全面を清掃する際の作業性にも優れる。
【００１１】
本発明において、合わせガラスの少なくとも一辺に亘って溝部を形成すれば、溝部の形成が容易であり、溝部が局所に偏在しないので外観上の違和感が少なく好ましい。
【００１２】
さらに、溝部に緩衝材が嵌挿され、緩衝材を介して支持部材が溝部に挿入される構成とすれば、支持部材と合わせガラスを構成する板ガラスとが直接接触することが避けられ、板ガラスに生ずる応力集中が抑制できるので好ましい。
【００１３】
この緩衝材は、中間接着層に接着されていれば、複数枚の合わせガラスを用いてガラス壁面を施工する際に、合わせガラスの溝部に緩衝材を施工現場で挿入する手間が省け、施工性が向上するのでさらに好適である。
【００１４】
【００１５】
本発明においては、合わせガラスを構成する複数枚の板ガラスのうち、溝部に面する部位の少なくとも一部を切り欠くことにより合わせガラスの端縁部に段差部を形成することが好ましい。このように段差部を設けることによって形成される空間部分に支持部材本体を位置させて、支持部材を躯体に支持できるので、隣り合う合わせガラスの端面どうしを突き合わせてガラス壁面を形成する場合、隣接する合わせガラス間に支持部材を介在させることなく、隣接する合わせガラス間の距離を小さくすることができ、意匠性が向上する。また、合わせガラス間に打設するシーリング材の使用量が少なくなり、施工時の作業性も向上する。
【００１６】
また、本発明において、合わせガラスを支持する支持部材は、差込部と支持部材本体とヒンジ部とを備え、差込部は溝部に挿入され、支持部材本体は躯体に支持され、ヒンジ部は差込部と支持部材本体とを回動自在に結合して合わせガラスが支持部材本体に対してヒンジ部を介して回動可能とされていることが好ましい。このような構成とすることで、合わせガラスが風圧等の面外方向の荷重を受けた際に、合わせガラスが躯体に対してヒンジ部を介して回動でき、合わせガラスに生ずる応力を軽減できる。
【００１７】
なお、本発明に用いる合わせガラスの構成は、積層される板ガラスの全てが無機質の板ガラスである必要はなく、無機質の板ガラスと有機質の板ガラス、例えばポリカーボネート板等の樹脂板とを積層した構成も、さらには、全てが有機質の板ガラスである構成をも含む。
【００１８】
【実施例】
以下、本発明に係る合わせガラス支持構造の好ましい実施の形態を、図面に基づいて説明する。
【００１９】
図１は本発明に用いる合わせガラスの要部断面図であり、図２は図１の合わせガラスを本発明の支持構造を用いて建物の開口部に施工した状態を示す要部横断面図である。すなわち、本例では合わせガラスの一方の縦辺を本発明の支持構造で支持している構造を示している。なお、本例で図示しない他の辺については、サッシ枠によって支持したり、合わせガラスの他の部位に設けた貫通孔に金属部材を嵌挿して支持したりするなど、本発明の支持構造と他の支持構造とを併用することもできる。例えば、上下の横辺をサッシ枠によって支持できる。
【００２０】
合わせガラス１は室内側板ガラス２ａ、室外側板ガラス２ｂを対向させて積層し、中間接着層３で接着することで構成されており、合わせガラス１の端縁部の所定箇所には、中間接着層３の一部が切除されて溝部４が形成されている。ここで、室内側板ガラス２ａと室外側板ガラス２ｂは、必ずしも同じ厚さの板ガラスを用いる必要はなく、異なる厚さの板ガラスを用いてもよい。また、合わせガラス１を構成する板ガラスは、室内側板ガラス２ａと室外側板ガラス２ｂの２枚のみに限定されず、３枚以上の板ガラス用いて、それぞれの板ガラス間に中間接着層３を設けて積層してもよい。
【００２１】
図２に示すように、断面が略コ字状のチャンネル部材である支持部材５は、差込部５ａ、及び支持部材本体５ｂとで構成されている。合わせガラス１は、溝部４に支持部材５の差込部５ａが嵌合されており、支持部材本体５ｂを介して躯体９に支持される。支持部材５としては、アルミニウム合金やスチール等の金属製部材を用いる。
【００２２】
中間接着層３としては、合わせガラス用として一般的な中間膜であるポリビニルブチラールやエチレン−酢酸ビニル共重合体等が好適に使用できるが、これらに限定されるものではない。なお、中間接着層３は、支持部材５の差込部５ａの厚さに対応する溝部４が形成可能な厚さが必要である。例えば、差込部５ａの厚さが約５ｍｍの場合、溝部４も約５ｍｍの間隙が必要であり、同様に、中間接着層３も約５ｍｍの厚さが必要である。この場合、１枚で約５ｍｍの厚さを有する中間膜を用いてもよいが、例えば約０．４ｍｍの中間膜を約１２〜１３枚積層し、積層された中間膜が全体として差込部５ａの厚さに相当する約５ｍｍの厚さとなるように調整してもよい。また、中間接着層３の部分にのみ溝部４を形成する。
【００２３】
この例では、合わせガラス１の縦辺の１つを本発明の支持構造で支持しており、上下の横辺をサッシ枠（図示せず）によって支持することで合わせガラス１の重量を実質的に支持し、本発明の支持構造で支持した合わせガラス１の縦辺では、合わせガラス１の面外方向の変位を拘束できる程度の強度を備えるようにすればよい。
【００２４】
例えば、立設する複数枚の合わせガラスを並設したガラス壁面において、これらの合わせガラスの上下の横辺をサッシ枠によって支持し、隣り合う合わせガラスの端面どうしの突き合わせ部（目地部）である縦辺を本発明の支持構造で支持する。この場合、合わせガラスの重量は下辺部のサッシ枠によって実質的に支持される。特に、高さ方向に長い（左右の縦辺が長い）長方形形状の合わせガラスを支持する場合に有効である。
【００２５】
図２では、室内側板ガラス２ａと支持部材本体５ｂとが接触しないように配置している。このようにすれば、合わせガラス１の面内方向（例えば、図２の上下方向）に躯体９が変位しても、室内側板ガラス２ａと支持部材本体５ｂとが接触しにくくなり、室内側板ガラス２ａ端部の損傷を防止できる。
【００２６】
溝部４を形成する方法としては、以下を例示できる。例えば、合わせガラス１の製造工程において、室内側板ガラス２ａと室外側板ガラス２ｂとの間の溝部４が形成されるべき部分に、中間接着層３を設けないで（すなわち、あらかじめ切除して）、合わせガラス１の製造工程を経ても形状が変化しないスペーサ（例えば、フッ素樹脂フィルム）を設置しておき、合わせガラス１の製造後にこのスペーサを取り除くことにより溝部４を形成できる。また、合わせガラス１の製造後に、合わせガラス１の中間接着層３の所定箇所を刃物状工具を用いて切除して溝部４を形成してもよい。
【００２７】
図３は、合わせガラス１の端縁部の一部に溝部４を設けた例を示す正面図である。この例では、合わせガラス１の左右の対向する二辺それぞれの一部に、溝部４を設置している。なお、合わせガラス１の上下の対向する二辺それぞれの一部に、溝部４を設置して本発明の支持構造で合わせガラスを支持すれば、下辺部に設ける本発明の支持構造で板ガラスの重量を支持できるので、支持する合わせガラスのサイズによっては、左右の縦辺を全く支持しないで自由支持とすることも可能である。このようにすれば、サッシ枠を全く使用せずに合わせガラスを支持できるので、ガラス表面より取付部材が突出したり露出したりせず意匠性に優れる。
【００２８】
図４は、合わせガラス１の少なくとも一辺に亘って溝部４を設けた例を示す正面図である。この例では、合わせガラス１の対向する二辺の全長に亘って、溝部４を設置している。
【００２９】
図５は、合わせガラス１の四辺の全長に亘って溝部４を設けた例を示す正面図である。
【００３０】
図６は、合わせガラス１の隅角部に溝部４を設けた例を示す正面図である。
【００３１】
なお、図３〜６は、溝部４の位置を示すための模式的なものであり、中間接着層３を図示せずに省略している。また、図３〜６では、合わせガラス１が略正方形形状となっているが、合わせガラス１はこのような形状に限定されるものではなくて長方形形状であってもよく、上下の横辺が長いものでも、左右の縦辺が長いものでもよい。
【００３２】
図４の例のように対向する二辺の全長に亘って溝部４を設けたり、図５の例のように四辺の全長に亘って溝部４を設けたりし、溝部４の全長に亘って支持部材５を介在させるのが、合わせガラス１を支持する強度を高めるうえで望ましいが、溝部４を辺の一部に設ける構成や隅角部に設ける構成であっても、支持部材５で支持する辺以外の辺をサッシ枠によって支持したり、合わせガラス１の他の部位に設けた貫通孔に金属部材を嵌挿して支持するなど、本発明の支持構造と他の支持構造とを組み合わせて使用できる。また、図６の例のように、合わせガラスの隅角部の少なくとも一箇所に溝部を形成すれば、溝部や支持部材があまり目立たない。
【００３３】
図７は、本発明の他の実施の形態に用いる合わせガラスの要部断面図であり、図８はその合わせガラスを用いて建物の開口部に施工した状態を示す要部縦断面図である。すなわち、本例では合わせガラスの下辺を本発明の支持構造で支持している構造を示している。
【００３４】
この例では、溝部４には、緩衝材７が中間接着層３に接着された状態で介在している。このように溝部４と支持部材５の差込部５ａとの間に緩衝材７を介在させると、支持部材５（差込部５ａ）と、室内側板ガラス２ａ、室外側板ガラス２ｂとが直接接触した場合に発生する応力集中を防止できる。緩衝材７は、合わせガラス１の製造時に中間接着層３に接着させておくと、施工時に緩衝材７を取り付ける手間が省け、かつ、緩衝材７が溝部４から落下する恐れがなく、施工性を向上できる。緩衝材７としては、シリコーンゴムの押出成形品やポリ塩化ビニル樹脂等よりなるものが用いられる。なお、緩衝材７は、中間接着層３に接着させておく代わりに、支持部材５の差込部５ａに付着させておいてもよい。
【００３５】
図８において、合わせガラス１は室内側板ガラス１ａの端縁部の一部が切り欠かれており、合わせガラスの端縁部に段差部８が形成されている。このような構成とすることで、段差部８を設けることによって形成される空間部分に支持部材本体５ｂを位置させて、支持部材５を躯体９に支持できるので、隣り合う合わせガラス１の端面どうしを突き合わせてガラス壁面を形成する場合、隣接する合わせガラス１，１間の距離を小さくすることができ、意匠性を向上でき、さらに、合わせガラス間に打設するシーリング材（図示せず）の使用量が少なくなり、シーリング材施工時の作業性を向上できる。例えば本例において、図４に示すように、合わせガラス１の対向する二辺の全長に亘って溝部４を設ける場合、溝部４の全長に亘って溝部４に沿うように段差部８を設けてもよい。
【００３６】
なお、図８の例は、合わせガラス１の下辺を本発明の支持構造で支持したものであり、室内側板ガラス２ａの下辺側には自重受け部材６が設けられている。自重受け部材２６の材質としてはアルミニウム合金、硬質ゴム、ポリカーボネートなどが好適であるが、ポリメチルメタクリレート樹脂等の透明部材とすることで、室内側板ガラス２ａと外観的な一体感が得られ、美観的に好ましい。また、図示しない他の辺の支持構造としては、例えば、左右の縦辺をサッシ枠によって支持できる。
【００３７】
図９は、室内側板ガラス２ａと室外側板ガラス２ｂとを、それらの間の端縁部の所定箇所に支持部材５の差込部５ａを介在させて積層し、中間接着層３で板ガラス２ａ，２ｂどうし、及び板ガラス２ａ，２ｂと差込部５ａとを接着して合わせガラス１を構成した例である。図１０は図９の要部拡大図である。
【００３８】
このように、平板状の部材である差込部５ａが中間接着層３を介して板ガラス２ａ，２ｂと一体化している合わせガラス１を、建物の開口部に施工した状態の要部横断面図を図１１に、分解斜視図を図１２に示す。なお、この例では、合わせガラス１は室内側板ガラス１ａの端縁部の一部が切り欠かれており、合わせガラスの端縁部に段差部８が形成されている。段差部８を設けることによって形成される空間部分に支持部材本体５ｂが位置しており、差込部５ａは支持部材本体５ｂと例えば接着剤を用いて接合される。よって、合わせガラス１が支持部材５を介して躯体９に支持される。なお、差込部５ａの一方の端部が合わせガラス１の端縁部からはみ出すようにして、差込部５ａと支持部材本体５ｂとをボルトやビス等で接合してもよい。
【００３９】
この例では、合わせガラス１の縦辺の１つを本発明の支持構造で支持しており、上下の横辺をサッシ枠（図示せず）によって支持することで合わせガラス１の重量を実質的に支持し、本発明の支持構造で支持した合わせガラス１の縦辺では、合わせガラス１の面外方向の変位を拘束できる程度の強度を備えるようにすればよい。例えば、中間接着層３全体の厚さを５ｍｍとし、差込部５ａの厚さを３ｍｍとして、差込部５ａと板ガラス２ａ，２ｂそれぞれとの間隙に厚さ１ｍｍの中間接着層３を介在させて差込部５ａと板ガラス２ａ，２ｂとを接着して一体化する。差込部５ａと板ガラス２ａ，２ｂとの接着幅（中間接着層３が介在する幅）は、溝部４の深さ方向（合わせガラス１の端縁部から合わせガラス１の内部へ向かう方向）に、例えば約５〜３０ｍｍ程度とするなど、合わせガラス１のサイズや必要とされる支持強度に応じて、適宜設計すればよい。なお、中間接着層３は、例えば厚さ０．４ｍｍ前後のものを複数枚積層して用いてもよい。
【００４０】
図１１では、段差部８により形成される空間部分を介して室内側板ガラス２ａと支持部材本体５ｂとが接触しないように配置している。このようにすれば、合わせガラス１の面内方向（例えば、図１１の上下方向）に躯体９が変位しても、室内側板ガラス２ａと支持部材本体５ｂとが接触しにくくなり、室内側板ガラス２ａ端部の損傷を防止できる。
【００４１】
図１３は、ヒンジ部を有する支持部材を用いた本発明の合わせガラス支持構造を示す分解斜視図である。この例では、支持部材５は、差込部５ａ、支持部材本体５ｂ、ヒンジ部５ｃとを備えており、断面が略コ字状のチャンネル部材である。差込部５ａと支持部材本体５ｂの中間には、支持部材５の長手方向に沿ってヒンジ部５ｃが設けられており、差込部５ａが支持部材本体５ｂに対しヒンジ部５ｃを介して回動可能となっている。なお本例では、支持部材５の差込部５ａの表面部分には、緩衝材７からなる層があらかじめ形成されている。
【００４２】
このように回動機構を付加することにより、合わせガラス１の面外方向に風圧等の外力を受けた際に、差込部５ａが支持部材本体５ｂに対し回動することにより合わせ板ガラス１に発生する応力を軽減することができる。
【００４３】
以上、本発明の実施の形態について詳述してきたが、本発明の合わせガラス支持構造の具体的な構成は上述した実施の形態のみに限定されず、本発明の趣旨を逸脱しない範囲で種々変更を加えうる。すなわち、合わせガラスの溝部に合わせガラスの支持部材が取り付けられる構成であれば、板ガラスのサイズ、施工箇所、用途等に応じて各種の応用例が考えられる。
【００４４】
【発明の効果】
本発明によれば、簡単な構造で、ガラス表面より取付部材（支持部材）が突出したり露出したりすることなく意匠性に優れ、長期耐久性も兼ね備えた合わせガラス支持構造が得られる。また、ガラスを支持する取付部材が、ガラス表面を貫通して突出したり露出したりしないので、ガラス表面全面を清掃する際の作業性にも優れる。
【００４５】
また、ヒンジ部を有する支持部材を用いて、合わせガラスの支持構造に回動機構を設ければ、合わせガラスの面外方向に風圧等の外力を受けた際に、ヒンジ部が回動することにより合わせガラスに発生する応力を軽減できる。
【図面の簡単な説明】
【図１】本発明の支持構造に用いる合わせガラスの要部断面図。
【図２】図１の合わせガラスを本発明の支持構造を用いて建物の開口部に施工した状態を示す要部横断面図。
【図３】本発明の支持構造に用いる合わせガラスの端縁部の一部に溝部を設けた例を示す正面図。
【図４】本発明の支持構造に用いる合わせガラスの対向する二辺の全長に亘って、溝部を設けた例を示す正面図。
【図５】本発明の支持構造に用いる合わせガラスの四辺の全長に亘って、溝部を設けた例を示す正面図。
【図６】本発明の支持構造に用いる合わせガラスの隅角部に溝部を設けた例を示す正面図。
【図７】本発明の支持構造に用いる別の合わせガラスの要部断面図。
【図８】図７の合わせガラスを本発明の支持構造を用いて建物の開口部に施工した状態を示す要部縦断面図。
【図９】本発明の支持構造に用いる別の合わせガラスの要部断面図。
【図１０】図９の要部拡大図。
【図１１】図９の合わせガラスの室内側板ガラスに段差部を設けて本発明の支持構造を用いて建物の開口部に施工した状態を示す要部横断面図。
【図１２】図１１の支持構造の分解斜視図。
【図１３】ヒンジ部を有する支持部材を用いた本発明の支持構造を示す分解斜視図。
【図１４】従来の板ガラスの支持構造の一例を示す斜視図。
【図１５】従来の板ガラスの支持構造の別の例を示す斜視図。
【符号の説明】
１：合わせガラス
２ａ：室内側板ガラス
２ｂ：室外側板ガラス
３：中間接着層
４：溝部
５：支持部材
５ａ：差込部
５ｂ：支持部材本体
５ｃ：ヒンジ部
６：自重受け部材
７：緩衝材
８：段差部
９：躯体
１１：板ガラス
１２：金属部材
１３：構造シール
１４：バックアップ材
１５：強化ガラス
１６：皿ボルト
１７：支持金物[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laminated glass support structure.
[0002]
[Prior art]
The plate glass is generally attached to and supported by a metal sash frame. However, since the metal sash frame is provided so as to protrude from the plate glass surface, the overall design is inferior. Therefore, in recent years, development of a plate glass support structure in which no member protrudes from the plate glass surface has been actively developed. For example, a structural silicone construction method (hereinafter referred to as “SSG construction method”) and a perforated tempered glass construction method (hereinafter referred to as “DPG construction method”) are known.
[0003]
FIG. 14 shows an example of the SSG construction method (Patent Document 1). This construction method is composed of a metal member 12 made of aluminum or the like that substantially supports the plate glass 11 and a structural seal 13 made of a silicone sealant or the like that joins the metal member 12 and the plate glass 11. The metal member 12 is bonded by a structural seal 13 and a backup material 14 is provided. Therefore, according to the SSG construction method, the panel (plate glass) can be held without causing a metal member such as a metal sash to protrude from the outer surface of the building, and the design is improved.
[0004]
FIG. 15 is an example of a DPG construction method (Patent Document 2). In this construction method, countersunk holes are machined in the four corners of the tempered glass 15, and countersunk bolts 16 fitted into the countersunk holes are attached to the support hardware 17 to support the plate glass. Also by this DPG construction method, since there is no member which protrudes from the sheet glass surface to the building outer surface, the design is improved.
[0005]
However, since the SSG construction method supports the plate glass by bonding the plate glass and the metal member with a structural seal, there is a problem of long-term durability of the seal portion.
[0006]
In addition, since the DPG construction method shows the surface of the countersunk bolt on the glass surface, there is a voice that desires a construction method in which the design of the portion is inferior and the supporting hardware is not visible. In addition, the DPG construction method has a problem that it takes time and effort to clean the support hardware because it protrudes greatly indoors.
[0007]
[Patent Document 1]
JP-A-5-018030 [Patent Document 2]
Japanese Patent Laid-Open No. 5-281818
[Problems to be solved by the invention]
The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a laminated glass support structure that is excellent in design properties and has long-term durability without mounting members protruding or exposed from the glass surface. .
[0009]
[Means for Solving the Problems]
The present invention is a laminated glass support structure for supporting a laminated glass in which a plurality of opposing plate glasses are bonded via an intermediate adhesive layer made of an intermediate film, and is a laminated glass supporting structure on one edge of the laminated glass. The laminated portion is cut out to form a groove portion only in the intermediate adhesive layer portion, and the insertion portion of the supporting member is inserted into the groove portion, and the supporting member is supported by the housing to support the laminated glass. A glass support structure is provided.
[0010]
According to this configuration, a laminated glass support structure having a simple structure and having excellent design properties without having an attachment member (support member) protruding or exposed from the glass surface and having long-term durability can be obtained. In addition, since the mounting member that supports the glass does not protrude or be exposed through the glass surface, it is excellent in workability when cleaning the entire glass surface.
[0011]
In the present invention, if the groove is formed over at least one side of the laminated glass, the formation of the groove is easy, and the groove is not unevenly distributed locally.
[0012]
Further, if the buffer material is inserted into the groove portion and the support member is inserted into the groove portion via the buffer material, direct contact between the support member and the plate glass constituting the laminated glass is avoided. This is preferable because the stress concentration that occurs can be suppressed.
[0013]
As long as this cushioning material is bonded to the intermediate adhesive layer, when constructing the glass wall surface using a plurality of laminated glass, the work of inserting the cushioning material into the groove of the laminated glass at the construction site can be saved. Is more preferable.
[0014 ]
[0015]
In this invention, it is preferable to form a level | step-difference part in the edge part of a laminated glass by notching at least one part of the site | part which faces a groove part among several sheet glass which comprises a laminated glass. Since the support member body can be positioned in the space portion formed by providing the step portion in this way and the support member can be supported by the housing, when the glass wall surface is formed by abutting the end surfaces of the adjacent laminated glasses, The distance between the adjacent laminated glasses can be reduced without interposing a supporting member between the laminated glasses, and the design is improved. In addition, the amount of sealing material used between the laminated glasses is reduced, and the workability during construction is improved.
[0016]
In the present invention, the support member for supporting the laminated glass includes an insertion portion, a support member main body, and a hinge portion, the insertion portion is inserted into the groove portion, the support member main body is supported by the housing, and the hinge portion is It is preferable that the insertion portion and the support member main body are rotatably coupled so that the laminated glass is rotatable with respect to the support member main body via a hinge portion. By adopting such a configuration, when the laminated glass receives a load in the out-of-plane direction such as wind pressure, the laminated glass can be rotated with respect to the housing via the hinge portion, and the stress generated in the laminated glass can be reduced. .
[0017]
In addition, the configuration of the laminated glass used in the present invention does not require that all of the laminated plate glasses are inorganic plate glasses, and a configuration in which an inorganic plate glass and an organic plate glass, for example, a resin plate such as a polycarbonate plate are laminated, Furthermore, the structure which is all organic sheet glass is also included.
[0018]
【Example】
Hereinafter, a preferred embodiment of a laminated glass support structure according to the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a cross-sectional view of a main part of a laminated glass used in the present invention, and FIG. 2 is a cross-sectional view of the main part showing a state in which the laminated glass of FIG. is there. That is, this example shows a structure in which one vertical side of the laminated glass is supported by the support structure of the present invention. In addition, about the other side which is not illustrated in this example, it is supported by a sash frame, or a metal member is inserted into and supported by a through hole provided in another part of the laminated glass. Other support structures can also be used in combination. For example, the upper and lower horizontal sides can be supported by a sash frame.
[0020]
The laminated glass 1 is configured by laminating the indoor side plate glass 2a and the outdoor side plate glass 2b facing each other, and bonding them with an intermediate adhesive layer 3, and an intermediate adhesive layer is provided at a predetermined position on the edge of the laminated glass 1. A part of 3 is cut away to form a groove 4. Here, the indoor side plate glass 2a and the outdoor side plate glass 2b do not necessarily need to use plate glasses having the same thickness, and plate glasses having different thicknesses may be used. Moreover, the plate glass which comprises the laminated glass 1 is not limited only to 2 sheets of the indoor side plate glass 2a and the outdoor side plate glass 2b, It laminates | stacks by using the 3 or more plate glass, and providing the intermediate | middle adhesive layer 3 between each plate glass. May be.
[0021]
As shown in FIG. 2, the support member 5, which is a channel member having a substantially U-shaped cross section, includes an insertion portion 5 a and a support member main body 5 b. In the laminated glass 1, the insertion portion 5 a of the support member 5 is fitted in the groove portion 4, and is supported by the housing 9 through the support member main body 5 b. As the support member 5, a metal member such as an aluminum alloy or steel is used.
[0022]
As the intermediate adhesive layer 3, polyvinyl butyral or an ethylene-vinyl acetate copolymer, which is a general intermediate film for laminated glass, can be preferably used, but is not limited thereto. In addition, the intermediate | middle adhesive layer 3 needs the thickness in which the groove part 4 corresponding to the thickness of the insertion part 5a of the support member 5 can be formed. For example, when the thickness of the insertion portion 5a is about 5 mm, the groove portion 4 also needs a gap of about 5 mm, and similarly, the intermediate adhesive layer 3 needs a thickness of about 5 mm. In this case, a single intermediate film having a thickness of about 5 mm may be used. For example, about 12 to 13 intermediate films having a thickness of about 0.4 mm are stacked, and the stacked intermediate film is inserted as a whole. You may adjust so that it may become the thickness of about 5 mm corresponding to the thickness of 5a. Moreover, it formed a groove 4 only in a portion of the intermediate adhesive layer 3.
[0023]
In this example, one of the vertical sides of the laminated glass 1 is supported by the support structure of the present invention, and the weight of the laminated glass 1 is substantially increased by supporting the upper and lower horizontal sides by a sash frame (not shown). And the longitudinal side of the laminated glass 1 supported by the support structure of the present invention may be provided with a strength that can restrain the displacement of the laminated glass 1 in the out-of-plane direction.
[0024]
For example, in a glass wall surface in which a plurality of laminated glass sheets to be erected are juxtaposed, the upper and lower horizontal sides of these laminated glasses are supported by a sash frame, and are the butted portions (joint portions) between the end faces of adjacent laminated glasses. The vertical side is supported by the support structure of the present invention. In this case, the weight of the laminated glass is substantially supported by the lower sash frame. This is particularly effective when supporting a laminated glass having a rectangular shape that is long in the height direction (long left and right vertical sides).
[0025]
In FIG. 2, it arrange | positions so that the indoor side plate glass 2a and the supporting member main body 5b may not contact. In this way, even if the housing 9 is displaced in the in-plane direction of the laminated glass 1 (for example, the vertical direction in FIG. 2), the indoor side plate glass 2a and the support member main body 5b are less likely to come into contact with each other. Damage to the end of 2a can be prevented.
[0026]
Examples of the method for forming the groove 4 include the following. For example, in the manufacturing process of the laminated glass 1, the intermediate adhesive layer 3 is not provided in a portion where the groove 4 between the indoor side plate glass 2a and the outdoor side plate glass 2b is to be formed (that is, cut in advance). The spacer 4 (for example, a fluororesin film) whose shape does not change even after the manufacturing process of the laminated glass 1 is installed, and the groove 4 can be formed by removing the spacer after the laminated glass 1 is manufactured. Further, after the laminated glass 1 is manufactured, a predetermined portion of the intermediate adhesive layer 3 of the laminated glass 1 may be cut out using a blade-like tool to form the groove 4.
[0027]
FIG. 3 is a front view showing an example in which the groove portion 4 is provided in a part of the edge portion of the laminated glass 1. In this example, the groove part 4 is installed in a part of each of two opposite sides of the laminated glass 1. In addition, if the groove part 4 is installed in a part of each of two upper and lower opposing sides of the laminated glass 1 and the laminated glass is supported by the supporting structure of the present invention, the weight of the plate glass by the supporting structure of the present invention provided on the lower side part Therefore, depending on the size of the laminated glass to be supported, the left and right vertical sides can be supported without any support. If it does in this way, since a laminated glass can be supported without using a sash frame at all, an attachment member does not protrude from a glass surface, and it is excellent in design nature.
[0028]
FIG. 4 is a front view showing an example in which the groove portion 4 is provided over at least one side of the laminated glass 1. In this example, the groove part 4 is installed over the full length of the two opposing sides of the laminated glass 1.
[0029]
FIG. 5 is a front view showing an example in which the groove portion 4 is provided over the entire length of the four sides of the laminated glass 1.
[0030]
FIG. 6 is a front view showing an example in which the groove portion 4 is provided in the corner portion of the laminated glass 1.
[0031]
3 to 6 are schematic views for showing the positions of the groove portions 4, and the intermediate adhesive layer 3 is not shown in the figure. 3 to 6, the laminated glass 1 has a substantially square shape. However, the laminated glass 1 is not limited to such a shape, and may have a rectangular shape. It may be long or have long left and right vertical sides.
[0032]
As shown in the example of FIG. 4, the groove portion 4 is provided over the entire length of two opposite sides, or the groove portion 4 is provided over the entire length of the four sides as in the example of FIG. Although it is desirable to interpose the member 5 in order to increase the strength of supporting the laminated glass 1, the support member 5 supports the groove portion 4 even in a configuration in which the groove portion 4 is provided in a part of the side or a corner portion. The support structure of the present invention is used in combination with another support structure, such as supporting a side other than the side with a sash frame or by inserting and supporting a metal member in a through hole provided in another part of the laminated glass 1 it can. Moreover, if a groove part is formed in at least one corner part of a laminated glass like the example of FIG. 6, a groove part and a support member will not stand out so much.
[0033]
FIG. 7 is a cross-sectional view of a main part of a laminated glass used in another embodiment of the present invention, and FIG. 8 is a vertical cross-sectional view of the main part showing a state where the laminated glass is used to construct a building opening. . That is, this example shows a structure in which the lower side of the laminated glass is supported by the support structure of the present invention.
[0034]
In this example, the buffer material 7 is interposed in the groove portion 4 in a state of being bonded to the intermediate adhesive layer 3. When the cushioning material 7 is interposed between the groove 4 and the insertion portion 5a of the support member 5 in this way, the support member 5 (insertion portion 5a), the indoor side plate glass 2a, and the outdoor side plate glass 2b are in direct contact with each other. It is possible to prevent stress concentration that occurs when If the cushioning material 7 is bonded to the intermediate adhesive layer 3 during the production of the laminated glass 1, it is possible to save the trouble of attaching the cushioning material 7 during construction, and there is no risk that the cushioning material 7 will fall from the groove portion 4. Can be improved. As the buffer material 7, a silicone rubber extruded product, a polyvinyl chloride resin, or the like is used. The buffer material 7 may be attached to the insertion portion 5 a of the support member 5 instead of being attached to the intermediate adhesive layer 3.
[0035]
In FIG. 8, the laminated glass 1 has a part of the edge of the indoor side glass sheet 1a cut out, and a stepped portion 8 is formed at the edge of the laminated glass. With such a configuration, the support member main body 5b can be positioned in the space portion formed by providing the stepped portion 8, and the support member 5 can be supported by the housing 9, so that the end surfaces of the adjacent laminated glasses 1 can be connected to each other. When the glass wall surface is formed by abutting each other, the distance between the adjacent laminated glasses 1 and 1 can be reduced, the design can be improved, and a sealing material (not shown) placed between the laminated glasses The amount used is reduced, and the workability at the time of sealing material construction can be improved. For example, in this example, as shown in FIG. 4, when the groove portion 4 is provided over the entire length of the two opposite sides of the laminated glass 1, the step portion 8 is provided along the groove portion 4 over the entire length of the groove portion 4. Also good.
[0036]
In the example of FIG. 8, the lower side of the laminated glass 1 is supported by the support structure of the present invention, and a self-weight receiving member 6 is provided on the lower side of the indoor side glass sheet 2a. The weight receiving member 26 is preferably made of aluminum alloy, hard rubber, polycarbonate, or the like, but by using a transparent member such as polymethylmethacrylate resin, it is possible to obtain a sense of unity with the indoor side glass plate 2a, and to be aesthetically pleasing. Is preferable. As other side support structures (not shown), for example, the left and right vertical sides can be supported by a sash frame.
[0037]
FIG. 9 shows that the indoor side plate glass 2a and the outdoor side plate glass 2b are laminated with the insertion portion 5a of the support member 5 interposed at a predetermined portion of the edge portion between them, and the intermediate glass 3a is used as the plate glass 2a, This is an example in which the laminated glass 1 is constituted by bonding the glass plates 2a and 2b and the insertion portion 5a. FIG. 10 is an enlarged view of a main part of FIG.
[0038]
Thus, the principal part cross-sectional view of the state which constructed | assembled the laminated glass 1 in which the insertion part 5a which is a flat member is integrated with plate glass 2a, 2b via the intermediate contact bonding layer 3 in the opening part of a building Is shown in FIG. 11 and an exploded perspective view is shown in FIG. In this example, the laminated glass 1 has a part of the edge of the indoor side plate glass 1a cut out, and a step 8 is formed at the edge of the laminated glass. The support member main body 5b is located in a space formed by providing the stepped portion 8, and the insertion portion 5a is joined to the support member main body 5b using, for example, an adhesive. Therefore, the laminated glass 1 is supported by the housing 9 via the support member 5. In addition, the insertion part 5a and the support member main body 5b may be joined with a bolt, a screw, or the like so that one end of the insertion part 5a protrudes from the edge of the laminated glass 1.
[0039]
In this example, one of the vertical sides of the laminated glass 1 is supported by the support structure of the present invention, and the weight of the laminated glass 1 is substantially increased by supporting the upper and lower horizontal sides by a sash frame (not shown). And the longitudinal side of the laminated glass 1 supported by the support structure of the present invention may be provided with a strength that can restrain the displacement of the laminated glass 1 in the out-of-plane direction. For example, the thickness of the entire intermediate adhesive layer 3 is 5 mm, the thickness of the insertion portion 5a is 3 mm, and the intermediate adhesive layer 3 having a thickness of 1 mm is interposed in the gap between the insertion portion 5a and the glass plates 2a and 2b. Then, the insertion portion 5a and the glass plates 2a and 2b are bonded and integrated. The bonding width (the width where the intermediate bonding layer 3 is interposed) between the insertion portion 5a and the glass plates 2a and 2b is in the depth direction of the groove portion 4 (the direction from the edge of the laminated glass 1 toward the inside of the laminated glass 1). What is necessary is just to design suitably according to the size of the laminated glass 1, and the required support strength, for example to set it as about 5-30 mm. For example, a plurality of intermediate adhesive layers 3 having a thickness of about 0.4 mm may be laminated.
[0040]
In FIG. 11, it arrange | positions so that the indoor side plate glass 2a and the support member main body 5b may not contact via the space part formed of the level | step-difference part 8. FIG. In this way, even if the housing 9 is displaced in the in-plane direction of the laminated glass 1 (for example, the vertical direction in FIG. 11), the indoor side plate glass 2a and the support member main body 5b are less likely to come into contact with each other. Damage to the end of 2a can be prevented.
[0041]
FIG. 13 is an exploded perspective view showing a laminated glass support structure of the present invention using a support member having a hinge portion. In this example, the support member 5 includes a plug portion 5a, a support member main body 5b, and a hinge portion 5c, and is a channel member having a substantially U-shaped cross section. A hinge portion 5c is provided along the longitudinal direction of the support member 5 between the insertion portion 5a and the support member main body 5b, and the insertion portion 5a rotates with respect to the support member main body 5b via the hinge portion 5c. It is possible to move. In this example, a layer made of the buffer material 7 is formed in advance on the surface portion of the insertion portion 5 a of the support member 5.
[0042]
By adding a rotation mechanism in this way, when receiving an external force such as wind pressure in the out-of-plane direction of the laminated glass 1, the insertion portion 5 a is rotated with respect to the support member main body 5 b, so The generated stress can be reduced.
[0043]
As mentioned above, although embodiment of this invention was explained in full detail, the specific structure of the laminated glass support structure of this invention is not limited only to embodiment mentioned above, In the range which does not deviate from the meaning of this invention, it changes variously. Can be added. That is, various application examples can be considered according to the size, construction location, application, etc. of the plate glass as long as the laminated glass supporting member is attached to the groove portion of the laminated glass.
[0044]
【The invention's effect】
According to the present invention, it is possible to obtain a laminated glass support structure that has a simple structure, is excellent in design, and has long-term durability without the attachment member (support member) protruding or exposed from the glass surface. Moreover, since the attachment member that supports the glass does not protrude through or expose the glass surface, it is excellent in workability when cleaning the entire glass surface.
[0045]
In addition, if a support mechanism having a hinge portion is used to provide a rotating mechanism for the laminated glass support structure, the hinge portion rotates when an external force such as wind pressure is applied in the out-of-plane direction of the laminated glass. Therefore, the stress generated in the laminated glass can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of a laminated glass used for a support structure of the present invention.
2 is a cross-sectional view of an essential part showing a state in which the laminated glass of FIG. 1 is applied to an opening of a building using the support structure of the present invention.
FIG. 3 is a front view showing an example in which a groove is provided in a part of an edge portion of a laminated glass used in the support structure of the present invention.
FIG. 4 is a front view showing an example in which a groove portion is provided over the entire length of two opposing sides of a laminated glass used in the support structure of the present invention.
FIG. 5 is a front view showing an example in which a groove portion is provided over the entire length of four sides of a laminated glass used in the support structure of the present invention.
FIG. 6 is a front view showing an example in which a groove portion is provided in a corner portion of a laminated glass used in the support structure of the present invention.
FIG. 7 is a cross-sectional view of a main part of another laminated glass used in the support structure of the present invention.
FIG. 8 is a longitudinal sectional view of a main part showing a state in which the laminated glass of FIG. 7 is applied to an opening of a building using the support structure of the present invention.
FIG. 9 is a cross-sectional view of a main part of another laminated glass used in the support structure of the present invention.
10 is an enlarged view of the main part of FIG. 9;
11 is a cross-sectional view of an essential part showing a state in which a step portion is provided on the indoor side glass sheet of the laminated glass of FIG. 9 and is constructed in an opening of a building using the support structure of the present invention.
12 is an exploded perspective view of the support structure of FIG.
FIG. 13 is an exploded perspective view showing a support structure of the present invention using a support member having a hinge portion.
FIG. 14 is a perspective view showing an example of a conventional plate glass support structure.
FIG. 15 is a perspective view showing another example of a conventional plate glass support structure.
[Explanation of symbols]
1: Laminated glass 2a: Indoor side plate glass 2b: Outdoor side plate glass 3: Intermediate adhesive layer 4: Groove portion 5: Support member 5a: Insertion portion 5b: Support member main body 5c: Hinge portion 6: Own weight receiving member 7: cushioning material 8 : Step part 9: Housing 11: Sheet glass 12: Metal member 13: Structural seal 14: Backup material 15: Tempered glass 16: Countersunk bolt 17: Support hardware

Claims

A laminated glass support structure for supporting a laminated glass in which a plurality of opposed glass sheets are bonded via an intermediate adhesive layer made of an intermediate film, and a part of the intermediate adhesive layer at the edge of the laminated glass is cut off. A laminated glass support structure, wherein a groove portion is formed only in the intermediate adhesive layer portion, an insertion portion of a support member is inserted into the groove portion, and the support member is supported by the housing to support the laminated glass.

The laminated glass support structure according to claim 1, wherein a groove is formed over at least one side of the laminated glass.

The laminated glass support structure according to claim 1 or 2, wherein a buffer material is inserted into the groove portion, and a support member is inserted into the groove portion via the buffer material.

The laminated glass support structure according to claim 3, wherein the buffer material is bonded to the intermediate adhesive layer.

The step part is formed in the edge part of a laminated glass by notching at least one part of the site | part which faces a groove part among the several sheet glass which comprises a laminated glass in any one of Claim 1 to 4 The laminated glass support structure described.

The laminated glass support structure according to claim 5 , wherein the support member main body is positioned in a space portion formed by providing the step portion.

The support member includes an insertion portion, a support member main body, and a hinge portion, the insertion portion is inserted into the groove portion, the support member main body is supported by the housing, and the hinge portion can freely rotate the insertion portion and the support member main body. The laminated glass support structure according to any one of claims 1 to 6 , wherein the laminated glass is rotatable with respect to the support member main body via a hinge portion.