JP2004137749A

JP2004137749A - Shaft penetrating part structure of glass sheet

Info

Publication number: JP2004137749A
Application number: JP2002303090A
Authority: JP
Inventors: Yasuhiko Mizoguchi; 溝口　安彦; Yasuhisa Uzawa; 鵜沢　康久
Original assignee: Nippon Sheet Glass Co Ltd
Current assignee: Nippon Sheet Glass Co Ltd
Priority date: 2002-10-17
Filing date: 2002-10-17
Publication date: 2004-05-13
Anticipated expiration: 2022-10-17
Also published as: JP4101015B2

Abstract

<P>PROBLEM TO BE SOLVED: To make the appearance hard to impair by making a shaft penetrating part hard to be conspicuous while inheriting the characteristic that it takes no time and trouble to form a shaft penetrating part. <P>SOLUTION: In this shaft penetrating part structure of a glass sheet, a plurality of glass sheets P1, P2 are disposed in a superposition state, and a shaft member S is passed in the state of penetrating the through holes 1, 2 formed in the respective glass sheets P1, P2. The through hole 1 formed in one of the above two or more glass sheets P1, P2 has a smaller diameter than the through hole 2 of the other glass sheets P2, and the shaft member S is passed through a bush 3 internally fitted to the small-diameter through hole 1. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、予め貫通孔を形成した複数の板ガラスを、積層させて所定の設置対象位置に設置固定するのに、固定用ボルトとなるシャフト部材を前記貫通孔に貫通させて支持させるような場合や、予め貫通孔を形成した板ガラスの端部同士を突き合わした状態に連結するのに、同様に貫通孔を予め形成しておいた添え板状の板ガラスを連結部に沿わせて、それらの貫通孔に連結用ボルトとなるシャフト部材を貫通させて連結固定するような場合の板ガラスのシャフト貫通部構造に関し、さらに詳しくは、複数の板ガラスが重なる状態で配置され、夫々の板ガラスに形成された貫通孔を貫通する状態にシャフト部材が挿通させてある板ガラスのシャフト貫通部構造に関する。
【０００２】
【従来の技術】
従来、この種の板ガラスのシャフト貫通部構造としては、図５に示すように、夫々の板ガラスＰ１，Ｐ２に形成された貫通孔１０，１１は、同じ内径寸法に形成してあるものがあった。
そして、例えば、板ガラスに対する貫通孔の位置精度が低く、各板ガラスＰ１，Ｐ２の端を揃えた状態ではそれぞれの板ガラスに形成した貫通孔１０，１１の軸芯どうしがずれているような場合でも、前記シャフト部材Ｓが、前記各貫通孔１０，１１をまっすぐ貫通できるようにするために、前記貫通孔１０，１１の内径寸法は、シャフト部材Ｓの外径寸法より相当量の余裕を見込んで大きく設定してあり、且つ、各貫通孔１０，１１のシャフト部材Ｓとの隙間には、間詰めリング部材１２を位置させてあるものがあった（例えば、特許文献１、２参照）。
【０００３】
【特許文献１】
特開平１２−３０９９９４号公報（第１図）
【特許文献２】
特開２００２−２１３０３６号公報（第１図）
【０００４】
【発明が解決しようとする課題】
上述した従来の板ガラスのシャフト貫通部構造によれば、各板ガラスに形成した貫通孔の位置精度が少々低くても、シャフト部材を貫通させることができ、形成手間が掛からないという特徴があるものの、何れの板ガラスに対しても大径の貫通孔が設けられており、その部分が目立ち易く、美観性を損ない易い問題点がある。
即ち、シャフト部材が貫通している各貫通孔部分には、上述の通り間詰めリング部材も介在させてあり、大径の貫通孔のみならず、大径の間詰めリング部材までもがシャフト部材の貫通部周囲に位置しており、シャフト貫通部が強調された状態になり、美観性を損ない易い。一般的には、透明な板ガラスが使用されることが多いが、この様な場合には、尚更、美観性を損ない易い。
更には、各板ガラスすべてについて大径の貫通孔が形成されているから、強度的な欠陥になり易い問題点もある。
【０００５】
従って、本発明の目的は、上記問題点を解消し、シャフト貫通部の形成手間が掛からないという特徴を受け継ぎながら、シャフト貫通部が目立ち難くでき、美観性を損ない難い板ガラスのシャフト貫通部構造を提供するところにある。
【０００６】
【課題を解決するための手段】
請求項１の発明の特徴構成は、複数の板ガラスが重なる状態で配置され、夫々の板ガラスに形成された貫通孔を貫通する状態にシャフト部材が挿通させてある板ガラスのシャフト貫通部構造において、前記複数の板ガラスの内の何れか一枚に形成された貫通孔が、他の板ガラスに形成された貫通孔より小径に形成してあり、その小径貫通孔に内嵌するブッシュを介して前記シャフト部材が挿通させてあるところにある。
【０００７】
請求項１の発明の特徴構成によれば、前記複数の板ガラスの内の何れか一枚に形成された貫通孔が、他の板ガラスに形成された貫通孔より小径に形成してあるから、夫々の貫通孔の位置精度が多少低かったにしても、小径の貫通孔に貫通するシャフト部材は、他の貫通孔内の何れかの位置に貫通することができ、シャフト貫通部の形成手間が掛からない。そして、従来のように全ての板ガラスの貫通孔が大径であるものに比べて、シャフト貫通部での貫通孔が目立ち難く、美観性を損ない難くすることができる。
しかも、その小径貫通孔にはブッシュを介してシャフト部材が挿通させてあるから、例えば、シャフト部材が金属ボルト等で構成してあるような場合でも、貫通孔内周部の局部にシャフト部材から集中荷重が直に作用すると言ったことが防止し易く、更には、貫通孔が従来に比べて小径に形成してあることで板ガラスの断面欠損が減少し、シャフト貫通部の強度アップを図ることが可能となる。その結果、板ガラスとシャフト部材とをより強力に連結することが可能となる。
よって、シャフト貫通部の形成手間が掛からないという特徴を受け継ぎながら、目立ち難く美観性を損ない難いシャフト貫通部に構成することができると共に、板ガラスとシャフト部材との連結状態を強化することも可能となる。
【０００８】
請求項２の発明の特徴構成は、前記ブッシュは、その長さ寸法を前記全ての板ガラスにわたる長さに設定してあり、前記小径貫通孔以外の貫通孔には、前記ブッシュの外周側に大径ブッシュを配置してあるところにある。
【０００９】
請求項２の発明の特徴構成によれば、請求項１の発明による作用効果を叶えることができるのに加えて、前記ブッシュによって全板ガラスの貫通孔内周側をガイドすることが可能となる。
更には、大径ブッシュを前記ブッシュの外周側に配置してあることで、小径貫通孔以外の貫通孔においても、大径ブッシュで貫通孔内周部との隙間をより少なくすることができ、シャフト部材の径方向に沿ったシャフト部材と各板ガラスとの相対移動が生じる場合にも、その相対移動をより小さく規制することが可能となり、板ガラスとシャフト部材との連結状態をより強化することが可能となる。
【００１０】
請求項３の発明の特徴構成は、前記大径ブッシュは、対応する板ガラスの貫通孔内で前記ブッシュに外嵌する状態に設けてあり、前記大径ブッシュと前記貫通孔内周部との間隙には間詰め材を設けてあるところにある。
【００１１】
請求項３の発明の特徴構成によれば、請求項２の発明による作用効果を叶えることができるのに加えて、前記間詰め材によって、貫通孔内周部と、ブッシュに外嵌する大径ブッシュとの間隙を埋めることができ、シャフト部材が挿通したブッシュ、大径ブッシュ、間詰め材、貫通孔内周部との一体性をより向上させることが可能となり、板ガラスとシャフト部材との連結状態を向上させることができる。
【００１２】
請求項４の発明の特徴構成は、前記大径ブッシュは、対応する板ガラスの貫通孔に内嵌する状態に設けてあり、前記ブッシュと前記大径ブッシュとの間隙には間詰め材を設けてあるところにある。
【００１３】
請求項４の発明の特徴構成によれば、請求項２の発明による作用効果を叶えることができるのに加えて、前記間詰め材によって、前記ブッシュと、貫通孔に内嵌する大径ブッシュとの間隙を埋めることができ、シャフト部材が挿通したブッシュ、間詰め材、大径ブッシュ、貫通孔内周部との一体性をより向上させることが可能となり、板ガラスとシャフト部材との連結状態を向上させることができる。
【００１４】
請求項５の発明の特徴構成は、前記板ガラスの内、少なくとも、前記小径貫通孔を形成してある板ガラスは、強化ガラスであるところにある。
【００１５】
請求項５の発明の特徴構成によれば、請求項１〜４の何れかの発明による作用効果を叶えることができるのに加えて、小径貫通孔を形成した板ガラスは、前述の通り、他の板ガラスに比べてシャフト部材との係わりを強め易いから、その板ガラスを強化ガラスで構成してあることで、板ガラスに対するシャフト部材の取付強度をもより高く期待することが可能となる。
そして、強化ガラスで構成することで、厚み寸法をより薄くすることが可能となるから、板ガラスそのものが目立ち難くなり、前述の通り、シャフト貫通部の美観性向上と相まって、板ガラス及びシャフト部材を含めた全体的な美観性の向上を図ることが可能となる。
【００１６】
請求項６の発明の特徴構成は、前記複数の板ガラスは、それぞれの接着によって構成された合わせガラスであるところにある。
【００１７】
請求項６の発明の特徴構成によれば、請求項１〜５の何れかの発明による作用効果を叶えることができるのに加えて、合わせガラスは、板ガラス同士を中間膜を用いて接着して形成するものであるから、互いのガラスどうしの補強効果が発揮され一体物としての強度向上を図ることができる。
そして、破損時には中間膜によるガラス保持作用によってガラスが砕け落ちるのを防止でき安全性の観点からも好ましい。
また、貫通孔周りの強度向上効果も期待できることから、合わせガラスとシャフト部材との強力な係わりも維持され、板ガラスとシャフト部材との取付強度の信頼性をも向上させることができる。
【００１８】
請求項７の発明の特徴構成は、前記シャフト部材は、前記複数の板ガラスを支持する状態で固定する固定具であるところにある。
【００１９】
請求項７の発明の特徴構成によれば、請求項１〜６の何れかの発明による作用効果を叶えることができるのに加えて、例えば、前記固定具を介して板ガラスをを建築物の躯体に固定する支持構法（例えば、ＤＰＧ構法（ドット・ポイント・グレージング構法）等の板ガラス点支持構法）に当該「板ガラスのシャフト貫通部構造」を採用することが可能となり、支持枠を使用する板ガラス支持構法に比べて、ガラスが備えた独特の開放感を生かした支持構法を採用することが可能となる。
【００２０】
【発明の実施の形態】
以下に本発明の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。
【００２１】
〔第一実施形態〕
図１は、本発明による板ガラスのシャフト貫通部構造の一形態を示している。尚、図は、シャフト部材ＳがガラスパネルＰを貫通している状態を示しているが、図には示さないが、例えば、貫通させたシャフト部材Ｓに一対のナットを螺合させてガラスパネルＰを挟持固定するような使用形態や、シャフト部材Ｓの頭部を拡径させておき、その拡径頭部とナットとでガラスパネルＰを挟持固定するような使用形態を採ることが可能である。そして、そのシャフト部材Ｓが、例えば、建物の躯体側に固定するための固定具であれば、前記シャフト部材Ｓによって前記ガラスパネルＰを支持し、ガラスカーテンウォール等を構成することが可能である。これ以外にも、前記シャフト部材Ｓの機能が異なるような使用形態に採用されることもあり、さまざまな用途に利用することができる。
【００２２】
前記シャフト部材Ｓの貫通部構造について詳しく説明すると、複数（本実施形態では二枚）の板ガラスＰ１，Ｐ２が重なる状態で配置され、夫々の板ガラスＰ１，Ｐ２に形成された貫通孔１，２を貫通する状態にシャフト部材Ｓが挿通させてある。
そして、前記二枚の板ガラスＰ１，Ｐ２の内の一方の板ガラスＰ１に形成された貫通孔１が、他方の板ガラスＰ２に形成された貫通孔２より小径に形成してある。また、前記一方の板ガラスＰ１の小径貫通孔１には、内嵌する状態に合成樹脂製のブッシュ３が挿通してある。このブッシュ３は、その内径寸法を、前記シャフト部材Ｓの外径寸法に合わせて形成してあり、シャフト部材Ｓがきっちり内嵌するように構成してある。一方、ブッシュ３の長さ寸法は、前記ガラスパネルＰの厚み内に納まるように設定してあり、前記他方の板ガラスＰ２の貫通孔２内に位置する部分には、このブッシュ３の外側に更に合成樹脂製の大径ブッシュ４を外嵌させてある。
因みに、小径貫通孔１より大径である貫通孔２の内径寸法は、貫通孔の位置精度を考慮して、前記大径ブッシュ４の外径寸法に位置ずれ補正寸法分以上の寸法を加算した値に設定してあり、特別に貫通孔設置精度を向上させなくても、両貫通孔１，２にシャフト部材Ｓをまっすぐ貫通させることができるように構成されている。そして、この大径ブッシュ４と前記貫通孔２との間隙には、合成樹脂製シール部材（間詰め材に相当）５を充填してあり、各板ガラスの両貫通孔１，２ともにシャフト部材Ｓがガタツキが無い状態に支持できるように構成されている。
【００２３】
前記ガラスパネルＰは、防犯用ガラスパネルとして形成してあり、図１に示すように、一方の板ガラスＰ１と他方の板ガラスＰ２とは、熱溶着によって両者を接合する合成樹脂製接着膜層６を介して一体化された所謂「合わせガラス」として構成されている。
【００２４】
また、両板ガラスＰ１，Ｐ２は、ともにフロートガラスで構成してあるが、前記小径の貫通孔１が形成されている前記一方の板ガラスＰ１については、その表面圧縮応力が、約１．１７６×１０８　Ｐａ以上、つまり、１２００ｋｇｆ／ｃｍ^２以上の高表面圧縮応力強化ガラスで構成されている。前記他方の板ガラスＰ２は、特に高表面圧縮応力強化ガラスを使用する必要性はなく、普通のフロートガラスで構成してある。
因みに、前記強化ガラスに対しては、強化処理（一般的には熱強化処理）後に貫通孔を形成すべく穴明けを実施すると、表面応力バランスが崩れることでガラス一面にひび割れが発生する危険性があり、強化処理を行う前に貫通孔を形成しておく必要がある。
【００２５】
前記合成樹脂製接着膜層６は、例えば、ポリビニルブチラール（ＰＶＢ）やエチレン酢酸ビニル（ＥＶＡ）製のシートを前記一方の板ガラスＰ１と他方の板ガラスＰ２との間に位置させて加熱するととともに加圧して形成され、それによって、一方の板ガラスＰ１と他方の板ガラスＰ２とが熱溶着されるのである。
【００２６】
前記シャフト部材Ｓは、例えば、金属ボルトで構成することができる。そして、前述のように、例えばナットを使用してガラスパネルを挟持固定するのが可能で、その場合、前記ブッシュを介して直接的に固定される一方の板ガラスＰ１との連結力が強く発揮され易い。前記一方の板ガラスＰ１が強化ガラスであるからより強力な連結力が確保され易い。
【００２７】
本実施形態のシャフト部材Ｓの貫通部構造によれば、夫々の貫通孔の位置精度が多少低かったにしても、小径の貫通孔に貫通するシャフト部材は、他の貫通孔内の何れかの位置に貫通することができ、しかも、大径の貫通孔は、他方の板ガラスの貫通孔のみであるから、シャフト貫通部での貫通孔が目立ち難く、美観性を損ない難くすることができる。また、シャフト部材は強化ガラスである前記一方の板ガラスＰ１との連結力が強力であるから、取付強度の向上を図ることが可能となる。
【００２８】
〔第二実施形態〕
図２は、本発明による板ガラスのシャフト貫通部構造の第二の形態を示している。
尚、前記第一実施形態と共通する部分の説明は省略する。
【００２９】
前記二枚の板ガラスＰ１，Ｐ２の内の一方の板ガラスＰ１に形成された貫通孔１が、他方の板ガラスＰ２に形成された貫通孔２より小径に形成してある。また、前記一方の板ガラスＰ１の小径貫通孔１には、内嵌する状態に合成樹脂製のブッシュ３が挿通してある。このブッシュ３は、その内径寸法を、前記シャフト部材Ｓの外径寸法に合わせて形成してあり、シャフト部材Ｓがきっちり内嵌するように構成してある。一方、ブッシュ３の長さ寸法は、前記ガラスパネルＰの厚み内に納まるように設定してある。
また、前記他方の板ガラスＰ２の貫通孔２には、前記ブッシュ３より大径の合成樹脂製の大径ブッシュ４を外嵌させてある。
因みに、小径貫通孔１より大径である貫通孔２の内径寸法は、貫通孔の位置精度を考慮して、前記大径ブッシュ４の外径寸法に位置ずれ補正寸法分以上の寸法を加算した値に設定してあり、特別に貫通孔設置精度を向上させなくても、両貫通孔１，２にシャフト部材Ｓをまっすぐ貫通させることができるように構成されている。そして、この大径ブッシュ４と前記ブッシュ３との間隙には、合成樹脂製シール部材（間詰め材に相当）５を充填してあり、各板ガラスの両貫通孔１，２ともにシャフト部材Ｓがガタツキが無い状態に支持できるように構成されている。
【００３０】
本実施形態のシャフト部材Ｓの貫通部構造によれば、夫々の貫通孔の位置精度が多少低かったにしても、小径の貫通孔に貫通するシャフト部材は、他の貫通孔内の何れかの位置に貫通することができ、しかも、大径の貫通孔は、他方の板ガラスの貫通孔のみであるから、シャフト貫通部での貫通孔が目立ち難く、美観性を損ない難くすることができる。また、シャフト部材は強化ガラスである前記一方の板ガラスＰ１との連結力が強力であるから、取付強度の向上を図ることが可能となる。
【００３１】
〔別実施形態〕
以下に他の実施の形態を説明する。
【００３２】
〈１〉　シャフト部材は、先の実施形態では、貫通孔に挿通させたシャフト部材Ｓに一対のナットを螺合させてガラスパネルＰを挟持固定するような設置形態や、シャフト部材Ｓの頭部を拡径させておき、その拡径頭部とナットとでガラスパネルＰを挟持固定するような設置形態を説明したが、このシャフト部材は、ガラスパネルＰを建物の躯体側に固定するための固定具として使用するものに限らず、例えば、複数枚の板ガラス同士を重ねて連結するための連結具として使用することも可能である。その一例としては、図３に示すように、一対の板ガラスＰ１の端部同士を突き合わした状態に連結するのに、添え板状の連結板ガラスＰ２を前記一対の板ガラスＰ１にわたる状態に表裏両面に沿わせ、両連結板ガラスＰ２、及び、前記板ガラスＰ１に各別に形成された貫通孔２，１にシャフト部材Ｓを貫通させて連結固定するような連結具が挙げられる。
要するに、複数の板ガラスそれぞれに形成された貫通孔に挿通させることが可能に形成されたものであればよく、それらを総称してシャフト部材という。
〈２〉　大径ブッシュは、先の実施形態で説明したように必ず設けることに限るものではなく、例えば、図４に示すように、各貫通孔１，２内に貫通する状態に前記ブッシュ３を設け、ブッシュ３と貫通孔との隙間に間詰め材５を充填するものであってもよい。
〈３〉　前記板ガラスは、先の実施形態で説明したフロート板ガラスに限らず、例えば型板ガラス、すりガラス（表面処理により光を拡散させる機能を付与したガラス）、網入りガラス、又は、熱線吸収・紫外線吸収・熱線反射等の機能を付与した板ガラスや、それらとの組み合わせであってもよい。そして、強化ガラスで構成するのが好ましい。但し、強化ガラスを使用する場合でも、全ての板ガラスが強化ガラスでなくてもよい。
また、ガラスの組成については、ソーダ珪酸ガラス（ソーダ石灰シリカガラス）や、ホウ珪酸ガラスや、アルミノ珪酸ガラスや、各種結晶化ガラスであってもよい。
〈４〉　前記間詰め材５は、合成樹脂製に限定されるものではなく、貫通孔２に力を伝達できるものであればよく、その種のものを総称して間詰め材という
【００３３】
尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。
【図面の簡単な説明】
【図１】第一実施形態の板ガラスのシャフト貫通部構造を示す断面図
【図２】第二実施形態の板ガラスのシャフト貫通部構造を示す断面図
【図３】別実施形態の板ガラスのシャフト貫通部構造を示す断面図
【図４】別実施形態の板ガラスのシャフト貫通部構造を示す断面図
【図５】従来の板ガラスのシャフト貫通部構造を示す断面図
【符号の説明】
１　　　貫通孔
２　　　貫通孔
３　　　ブッシュ
４　　　大径ブッシュ
５　　　間詰め材
Ｐ１　　板ガラス
Ｐ２　　板ガラス
Ｓ　　　シャフト部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides, for example, a method in which a plurality of glass sheets having through holes formed in advance are stacked and fixed at a predetermined installation target position, and a shaft member serving as a fixing bolt is penetrated through the through hole to be supported. In such a case, in order to connect the end portions of the sheet glass having a through hole formed in advance in abutting state, the plate glass in the form of an additional plate having a through hole formed in advance is also along the connecting portion, Regarding the shaft penetrating portion structure of a sheet glass in a case where a shaft member serving as a connecting bolt is penetrated and connected and fixed to those through holes, more specifically, a plurality of sheet glasses are arranged in an overlapping state and formed on each sheet glass. The present invention relates to a shaft penetrating portion structure of a sheet glass in which a shaft member is inserted so as to pass through a through hole formed.
[0002]
[Prior art]
Conventionally, as a shaft penetrating portion structure of this type of plate glass, as shown in FIG. 5, there is a structure in which through holes 10 and 11 formed in respective plate glasses P1 and P2 have the same inner diameter. .
And, for example, even if the position accuracy of the through-hole with respect to the plate glass is low and the axes of the through-holes 10 and 11 formed in the respective plate glass are misaligned when the ends of the respective plate glasses P1 and P2 are aligned, In order to allow the shaft member S to pass straight through each of the through holes 10 and 11, the inner diameter of the through holes 10 and 11 is larger than the outer diameter of the shaft member S in consideration of a considerable margin. In some cases, the filling ring member 12 is located in the gap between each of the through holes 10 and 11 and the shaft member S (for example, see Patent Documents 1 and 2).
[0003]
[Patent Document 1]
JP-A-12-309994 (FIG. 1)
[Patent Document 2]
JP-A-2002-213036 (FIG. 1)
[0004]
[Problems to be solved by the invention]
According to the above-described conventional sheet glass shaft penetration structure, even though the positional accuracy of the through holes formed in each sheet glass is slightly low, it is possible to penetrate the shaft member, and there is a feature that it does not take time to form, A large-diameter through-hole is provided for any of the plate glasses, and the portion is conspicuous, and there is a problem that the aesthetic appearance is easily impaired.
That is, in each through-hole portion through which the shaft member penetrates, the filling ring member is also interposed as described above, so that not only the large-diameter through hole but also the large-diameter filling ring member is the shaft member. , And the shaft penetrating portion is emphasized, and the aesthetic appearance is easily impaired. In general, a transparent plate glass is often used, but in such a case, the aesthetic appearance is more likely to be impaired.
Furthermore, since a large-diameter through hole is formed for each of the glass sheets, there is also a problem that the glass sheet tends to have a strength defect.
[0005]
Therefore, an object of the present invention is to solve the above-mentioned problems, and while inheriting the feature that the labor for forming the shaft penetrating portion is not required, the shaft penetrating portion can be made inconspicuous, and the shaft penetrating portion structure of the sheet glass that is hard to impair the aesthetic appearance. To provide.
[0006]
[Means for Solving the Problems]
The feature configuration of the invention according to claim 1 is that in a shaft penetration part structure of the sheet glass, a plurality of sheet glasses are arranged in an overlapping state, and a shaft member is inserted in a state of passing through a through hole formed in each sheet glass. A through hole formed in any one of the plurality of glass sheets is formed to have a smaller diameter than a through hole formed in another glass sheet, and the shaft member is inserted through a bush that is fitted in the small diameter through hole. Is where it is inserted.
[0007]
According to the characteristic configuration of the invention of claim 1, the through hole formed in any one of the plurality of glass sheets is formed to have a smaller diameter than the through hole formed in the other glass sheets. Even if the positional accuracy of the through-hole is slightly low, the shaft member that penetrates the small-diameter through-hole can penetrate to any position in the other through-hole, and it takes time to form the shaft through-hole. Absent. In addition, the through-holes in the shaft through-holes are less conspicuous than those in the conventional case in which all the through-holes of the sheet glass have a large diameter, and the aesthetic appearance can be hardly impaired.
Moreover, since the shaft member is inserted through the bush into the small-diameter through-hole, for example, even when the shaft member is formed of a metal bolt or the like, the shaft member is inserted into a local portion of the inner peripheral portion of the through-hole. It is easy to prevent that the concentrated load acts directly, and furthermore, the through hole is formed with a smaller diameter than before so that the cross-sectional loss of the sheet glass is reduced and the strength of the shaft penetration part is increased. Becomes possible. As a result, the sheet glass and the shaft member can be more strongly connected.
Therefore, while inheriting the feature that the labor of forming the shaft penetrating portion is not required, it is possible to configure the shaft penetrating portion that is not noticeable and hard to impair the aesthetic appearance, and it is also possible to strengthen the connection state between the sheet glass and the shaft member. Become.
[0008]
A feature of the invention according to claim 2 is that the bush has a length dimension set to a length extending over all of the glass sheets, and a through-hole other than the small-diameter through-hole has a large diameter on the outer peripheral side of the bush. Where the diameter bush is located.
[0009]
According to the characteristic configuration of the second aspect of the invention, in addition to the effect of the first aspect of the invention, it is possible to guide the inner peripheral side of the through-hole of the entire sheet glass by the bush.
Furthermore, since the large-diameter bush is arranged on the outer peripheral side of the bush, even in a through-hole other than the small-diameter through-hole, the gap between the large-diameter bush and the through-hole inner peripheral portion can be further reduced. Even when the relative movement between the shaft member and each sheet glass along the radial direction of the shaft member occurs, the relative movement can be regulated to be smaller, and the connection state between the sheet glass and the shaft member can be further strengthened. It becomes possible.
[0010]
A feature of the invention according to claim 3 is that the large-diameter bush is provided so as to be externally fitted to the bush in the corresponding through-hole of the sheet glass, and a gap between the large-diameter bush and the inner peripheral portion of the through-hole is provided. Is provided with a filling material.
[0011]
According to the characteristic configuration of the third aspect of the present invention, in addition to achieving the effect of the second aspect of the present invention, the large-diameter fitting to the inner peripheral portion of the through hole and the bush by the filling material. The gap with the bush can be filled, and the integration of the bush, the large diameter bush, the filling material, and the inner peripheral portion of the through hole into which the shaft member has passed can be further improved, and the connection between the sheet glass and the shaft member can be achieved. The condition can be improved.
[0012]
In the characteristic configuration of the invention according to claim 4, the large-diameter bush is provided so as to be fitted in a through hole of a corresponding sheet glass, and a gap filling material is provided in a gap between the bush and the large-diameter bush. There is somewhere.
[0013]
According to the characteristic configuration of the fourth aspect of the present invention, in addition to the effect of the second aspect of the present invention, the bush and the large-diameter bush that fits in the through hole can be provided by the filling material. Can be filled, it is possible to further improve the integrity of the bush, the filling material, the large-diameter bush, the inner peripheral portion of the through hole through which the shaft member has been inserted, and the connection state between the sheet glass and the shaft member can be improved. Can be improved.
[0014]
A feature of the invention according to claim 5 is that, out of the plate glass, at least the plate glass in which the small-diameter through hole is formed is tempered glass.
[0015]
According to the characteristic configuration of the invention of claim 5, in addition to being able to achieve the function and effect of any one of the inventions of claims 1 to 4, the plate glass having the small-diameter through hole is provided with the other glass as described above. Since the relation with the shaft member is easily strengthened as compared with the sheet glass, it is possible to expect higher mounting strength of the shaft member to the sheet glass by configuring the sheet glass with the tempered glass.
And, by constituting with tempered glass, it becomes possible to make the thickness dimension thinner, so that the plate glass itself becomes inconspicuous, and as described above, combined with the aesthetic improvement of the shaft penetrating portion, including the plate glass and the shaft member. It is also possible to improve the overall aesthetics.
[0016]
A feature of the invention according to claim 6 is that the plurality of glass sheets are laminated glass formed by bonding them.
[0017]
According to the characteristic configuration of the invention of claim 6, in addition to being able to achieve the function and effect of any of the inventions of claims 1 to 5, the laminated glass is obtained by bonding the sheet glasses to each other using the intermediate film. Since they are formed, the reinforcing effect between the glasses is exerted, and the strength as an integral body can be improved.
Then, at the time of breakage, the glass can be prevented from being broken down by the glass holding action of the intermediate film, which is preferable from the viewpoint of safety.
Further, since the effect of improving the strength around the through hole can be expected, the strong relationship between the laminated glass and the shaft member is maintained, and the reliability of the mounting strength between the sheet glass and the shaft member can be improved.
[0018]
A feature of the invention according to claim 7 is that the shaft member is a fixture for fixing the plurality of glass sheets in a supported state.
[0019]
According to the characteristic structure of the invention of claim 7, in addition to being able to achieve the function and effect of any one of the inventions of claims 1 to 6, for example, a sheet glass is provided via the fixing tool to a building frame. (For example, a sheet glass point supporting structure such as a DPG method (dot-point glazing method)), and the “sheet glass shaft penetrating portion structure” can be adopted, and a sheet glass supporting method using a support frame can be adopted. Compared with the construction method, it is possible to adopt a support construction method that makes use of the unique open feeling of glass.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions.
[0021]
(First embodiment)
FIG. 1 shows an embodiment of a structure of a shaft penetration portion of a sheet glass according to the present invention. Although the figure shows a state in which the shaft member S penetrates the glass panel P, but is not shown in the figure, for example, a pair of nuts is screwed into the penetrated shaft member S to form the glass panel P. It is possible to adopt a use mode in which the glass panel P is sandwiched and fixed between the head portion of the shaft member S and the enlarged diameter head and a nut in which the head portion of the shaft member S is enlarged in diameter. is there. If the shaft member S is, for example, a fixing tool for fixing to the skeleton side of a building, the glass panel P can be supported by the shaft member S to form a glass curtain wall or the like. . In addition to the above, the shaft member S may be used in a usage form in which the function of the shaft member S is different, and can be used for various applications.
[0022]
The through-hole structure of the shaft member S will be described in detail. A plurality of (two in this embodiment) plate glasses P1 and P2 are arranged in an overlapping state, and the through holes 1 and 2 formed in the respective plate glasses P1 and P2 are formed. The shaft member S is inserted so as to penetrate.
The through hole 1 formed in one of the two glass sheets P1 and P2 has a smaller diameter than the through hole 2 formed in the other glass sheet P2. A bush 3 made of synthetic resin is inserted into the small-diameter through hole 1 of the one glass pane P1 so as to be fitted inside. The bush 3 is formed such that its inner diameter is adjusted to the outer diameter of the shaft member S, so that the shaft member S fits tightly inside. On the other hand, the length dimension of the bush 3 is set so as to fit within the thickness of the glass panel P, and a portion of the other plate glass P2 located in the through hole 2 is further provided outside the bush 3. A large-diameter bush 4 made of synthetic resin is externally fitted.
Incidentally, the inner diameter of the through-hole 2 having a diameter larger than that of the small-diameter through-hole 1 is obtained by adding a dimension equal to or more than the displacement correction dimension to the outer diameter of the large-diameter bush 4 in consideration of the positional accuracy of the through-hole. The shaft member S is set to a value so that the shaft member S can be passed straight through both the through holes 1 and 2 without particularly improving the through hole installation accuracy. The gap between the large-diameter bush 4 and the through-hole 2 is filled with a synthetic resin sealing member 5 (corresponding to a filling material). Are configured to be able to support in a state without rattling.
[0023]
The glass panel P is formed as a security glass panel, and as shown in FIG. 1, one sheet glass P1 and the other sheet glass P2 have a synthetic resin adhesive film layer 6 that joins the two by heat welding. It is configured as a so-called “laminated glass” integrated through the intermediary.
[0024]
Further, both the sheet glasses P1 and P2 are made of float glass, but the surface compressive stress of the one sheet glass P1 in which the small-diameter through hole 1 is formed is about 1.176 × 108. It is made of high surface compressive stress strengthened glass of Pa or more, that is, 1200 kgf / cm ² or more. The other sheet glass P2 does not need to use particularly high surface compressive stress strengthened glass, and is made of ordinary float glass.
Incidentally, if a hole is formed in the tempered glass to form a through-hole after the tempering treatment (generally, heat tempering treatment), there is a risk that the surface stress balance is lost and cracks are generated on the entire surface of the glass. Therefore, it is necessary to form a through hole before performing the strengthening process.
[0025]
The synthetic resin adhesive film layer 6 is heated and pressurized while, for example, a sheet made of polyvinyl butyral (PVB) or ethylene vinyl acetate (EVA) is positioned between the one sheet glass P1 and the other sheet glass P2. Thus, one sheet glass P1 and the other sheet glass P2 are thermally welded.
[0026]
The shaft member S can be composed of, for example, a metal bolt. As described above, it is possible to clamp and fix the glass panel using, for example, a nut. In this case, the connection force with one of the glass sheets P1 directly fixed via the bush is strongly exerted. easy. Since the one plate glass P1 is a tempered glass, a stronger connecting force is easily secured.
[0027]
According to the through-hole structure of the shaft member S of the present embodiment, even if the positional accuracy of each through-hole is somewhat low, the shaft member that penetrates the small-diameter through-hole does not have any of the other through-holes. Since the through-hole can be penetrated to the position, and the large-diameter through-hole is only the through-hole of the other sheet glass, the through-hole in the shaft through-hole can be hardly conspicuous and the aesthetic appearance can be hardly impaired. Further, since the shaft member has a strong connection force with the one sheet glass P1 which is a tempered glass, it is possible to improve the mounting strength.
[0028]
(Second embodiment)
FIG. 2 shows a second embodiment of the sheet glass shaft penetration structure according to the present invention.
The description of the parts common to the first embodiment is omitted.
[0029]
The through hole 1 formed in one of the two glass sheets P1 and P2 has a smaller diameter than the through hole 2 formed in the other glass sheet P2. A bush 3 made of synthetic resin is inserted into the small-diameter through hole 1 of the one glass pane P1 so as to be fitted inside. The bush 3 is formed such that its inner diameter is adjusted to the outer diameter of the shaft member S, so that the shaft member S fits tightly inside. On the other hand, the length of the bush 3 is set to be within the thickness of the glass panel P.
A large-diameter bush 4 made of synthetic resin and having a diameter larger than that of the bush 3 is fitted in the through hole 2 of the other plate glass P2.
Incidentally, the inner diameter of the through-hole 2 having a diameter larger than that of the small-diameter through-hole 1 is obtained by adding a dimension equal to or more than the displacement correction dimension to the outer diameter of the large-diameter bush 4 in consideration of the positional accuracy of the through-hole. The shaft member S is set to a value so that the shaft member S can be passed straight through both the through holes 1 and 2 without particularly improving the through hole installation accuracy. The gap between the large-diameter bush 4 and the bush 3 is filled with a sealing member 5 made of synthetic resin (corresponding to a filling material), and a shaft member S is provided in both through holes 1 and 2 of each sheet glass. It is configured so that it can be supported without rattling.
[0030]
According to the through-hole structure of the shaft member S of the present embodiment, even if the positional accuracy of each through-hole is somewhat low, the shaft member that penetrates the small-diameter through-hole does not have any of the other through-holes. Since the through-hole can be penetrated to the position, and the large-diameter through-hole is only the through-hole of the other sheet glass, the through-hole in the shaft through-hole can be hardly conspicuous and the aesthetic appearance can be hardly impaired. Further, since the shaft member has a strong connection force with the one sheet glass P1 which is a tempered glass, it is possible to improve the mounting strength.
[0031]
[Another embodiment]
Hereinafter, other embodiments will be described.
[0032]
<1> In the above embodiment, the shaft member is mounted in a manner such that a pair of nuts are screwed into the shaft member S inserted through the through hole to clamp and fix the glass panel P, or the head of the shaft member S Has been described, and the glass panel P is sandwiched and fixed between the enlarged head and the nut. However, this shaft member is used to fix the glass panel P to the building side of the building. The present invention is not limited to the use as a fixing tool, and for example, can be used as a connecting tool for overlapping and connecting a plurality of sheet glasses. As an example, as shown in FIG. 3, in order to connect the ends of a pair of plate glasses P1 in abutting state, a connected plate glass P2 in the form of an attached plate is placed on the front and back surfaces in a state extending over the pair of plate glasses P1. Along the way, there is a connecting tool which penetrates the shaft member S through the connecting plate glass P2 and the through holes 2, 1 formed separately in the plate glass P1 to connect and fix.
In short, what is necessary is just to be formed so that it can be inserted in the through-hole formed in each of several sheet glass, and they are collectively called a shaft member.
<2> The large-diameter bush is not necessarily provided as described in the previous embodiment. For example, as shown in FIG. May be provided, and the gap between the bush 3 and the through hole is filled with the filling material 5.
<3> The plate glass is not limited to the float plate glass described in the above embodiment. For example, a template plate glass, a ground glass (a glass having a function of diffusing light by a surface treatment), a netted glass, or a heat ray absorbing / ultraviolet ray It may be a sheet glass provided with functions such as absorption and heat ray reflection, or a combination thereof. And it is preferable to comprise with tempered glass. However, even when tempered glass is used, not all sheet glass need be tempered glass.
The composition of the glass may be soda silicate glass (soda lime silica glass), borosilicate glass, aluminosilicate glass, or various crystallized glasses.
<4> The filling material 5 is not limited to being made of a synthetic resin, and may be any material that can transmit a force to the through-hole 2.
Note that, as described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a structure of a shaft penetrating portion of a sheet glass according to a first embodiment. FIG. 2 is a cross-sectional view illustrating a structure of a shaft penetrating portion of a sheet glass according to a second embodiment. FIG. FIG. 4 is a cross-sectional view showing a shaft penetrating structure of a sheet glass of another embodiment. FIG. 5 is a cross-sectional view showing a shaft penetrating structure of a conventional sheet glass.
DESCRIPTION OF SYMBOLS 1 Through hole 2 Through hole 3 Bush 4 Large diameter bush 5 Filling material P1 Sheet glass P2 Sheet glass S Shaft member

Claims

A plurality of plate glasses are arranged in an overlapping state, a shaft penetrating portion structure of the plate glass in which the shaft member is inserted in a state of passing through a through hole formed in each plate glass,
A through hole formed in any one of the plurality of glass sheets is formed to have a smaller diameter than a through hole formed in another glass sheet, and the shaft is formed through a bush that is fitted in the small diameter through hole. Shaft penetrating structure of sheet glass through which members are inserted.

2. The bush has a length dimension set to a length extending over all of the glass sheets, and a large-diameter bush is arranged on an outer peripheral side of the bush in a through-hole other than the small-diameter through-hole. 3. The shaft penetration part structure of the sheet glass of 3.

The large-diameter bush is provided so as to be externally fitted to the bush in a corresponding through-hole of the sheet glass, and a gap filling material is provided in a gap between the large-diameter bush and an inner peripheral portion of the through-hole. Item 3. The sheet glass shaft penetration portion structure according to Item 2.

The shaft of the sheet glass according to claim 2, wherein the large-diameter bush is provided so as to be fitted into a corresponding through-hole of the sheet glass, and a gap between the bush and the large-diameter bush is provided with a filling material. Penetration structure.

The shaft penetration part structure of sheet glass according to any one of claims 1 to 4, wherein at least the sheet glass in which the small-diameter through hole is formed is tempered glass.

The shaft penetration part structure of a sheet glass according to any one of claims 1 to 5, wherein the plurality of sheet glasses are laminated glass formed by bonding the respective sheet glasses.

The shaft penetration part structure of a sheet glass according to any one of claims 1 to 6, wherein the shaft member is a fixture for fixing the plurality of sheet glasses while supporting the sheet glass.