JP2004250866A

JP2004250866A - Insect control device of flat sill-equipped sash for external opening

Info

Publication number: JP2004250866A
Application number: JP2003039043A
Authority: JP
Inventors: Takeshi Ohara; 剛尾原; Motoaki Shirai; 基明白井
Original assignee: Shin Nikkei Co Ltd
Current assignee: Shin Nikkei Co Ltd
Priority date: 2003-02-17
Filing date: 2003-02-17
Publication date: 2004-09-09
Anticipated expiration: 2023-02-17
Also published as: JP4204035B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure which exerts excellent insectproof performance while securing good travelability of a wire screen, in terms of an improvement in watertightness and airtightness. <P>SOLUTION: A flat sill-equipped sash for an external opening comprises a sliding screen which slides rightward and leftward along a rail part of a sill 10, and the wire screen 82 which is provided outside the sliding screen and which slides rightward and leftward. In the sash, the whole top surface of the sill is almost flatly formed in such a manner as to include a top surface of the rail part. Indoor-side and outdoor-side suspended pieces 47 and 48 of the bottom rail of the sliding screen 40 are formed in the sliding screen 40; an outdoor-side guide groove 19 of the suspended piece 48 is formed of an outdoor-side rising piece 15 and a side surface of the rail part of the sliding screen 40; the rising piece 15 is used for the rail part for the traveling of the wire screen 82; and a taking-in piece 82c along a longitudinal direction, which is fitted into the guide groove 19, is formed in a bottom rail 82C of the wire screen 82, and taken into the guide groove 19 in a close state along with the suspended piece 48 of the sliding screen 40. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、建築物の屋外開口に設置する、下枠の上面全体を略フラットに形成した屋外開口用下枠フラットサッシにおける防虫装置に関する。
【０００２】
【従来の技術】
従来、建築物の屋外開口部に設置されるサッシの下枠には、当該サッシを構成する障子を左右にスライドさせるために、障子の下框に設けられた戸車を回動させるリブ状のレール部が形成されている。
【０００３】
通常、このリブ状のレール部並びに内障子及び外障子の当該レール部によって区画されたレール溝は、サッシの雨仕舞の観点より、室外側よりも室内側が高くなるように段差を設けて形成されている。すなわち、障子や窓ガラスに吹き付けられた雨水は、障子や窓ガラスに沿って落下し、下枠のレール溝に溜まるが、このレール溝が室外側よりも室内側が高くなるように段差を設けて形成されているため、レール溝に溜まった雨水の自重により室内側への雨水の侵入を防ぎ、またレール溝に溜まった雨水は屋外へ排出されるようになっている。
【０００４】
一方、近年では、バリアフリー若しくはユニバーサルデザインの観点から、リブ状のレール部を室内側と室外側で段差を設けることなく略フラットに配設した下枠フラットサッシや、さらにレール部をリブ状でなくレ−ル部の上面を略フラットにした下枠フラットサッシも開発されている（例えば、特許文献１参照）。
【０００５】
とりわけ、このレール部の上面を略フラットにした下枠フラットサッシでは、一定以上の水密性、気密性を確保することが課題となっており、特許文献１では、室内への雨水の侵入を防ぐために、障子と下枠との間を横タイト材を介して気密にする等気圧構造を採用している。具体的には、障子下框の室内側に垂下片（スライド片）が形成され、この垂下片と下枠のレール溝の室内側側壁に設けられた横タイト材とで水密性と気密性を確保している。
【０００６】
また、この種の下枠フラットサッシにおいて、防虫装置に関しては特許文献２に開示がある。
【０００７】
【特許文献１】
特許第３３３０５８号（６頁、図１）
【特許文献２】
特開２００２−２４２５６２号
【０００８】
【発明が解決しようとする課題】
特許文献２における下枠フラットサッシにおける防虫構造は、下枠屋外側に下枠凹部を設けて網戸下框室外側側壁に設けた垂下片を呑み込ませて虫押えラインを形成したものである。さらに、網戸縦框の底部と下枠フラット面の間にタイトピースを介在させて虫押えラインを形成した、また、網戸縦框の室内側側壁と障子戸当框又は召合框の室外側側壁間に縦タイト材を介在させて虫押えラインを形成したものである。
【０００９】
この特許文献２の形態では、網戸縦框の底部と下枠フラット面の間にタイトピースを介在させて虫押えラインを形成することが必須となる。
【００１０】
しかるに、タイトピースが下枠フラット面に可能な限り接近していることが虫押えのために必要であるが、過度に接近していると、網戸をスライドするときに下枠フラット面に接触し、円滑な走行性を阻害することが懸念される。
【００１１】
そこで、本発明の主たる課題は、枠と障子の水密性や気密性を高める観点を基礎におきながら、網戸の良好な走行性を確保しつつ、優れた防虫性能を発揮する構造を提供することにある。
【００１２】
【課題を解決するための手段】
上記課題を解決した本発明は次記のとおりである。
＜請求項１項記載の発明＞
下枠のレール部に沿って左右にスライドする障子と、その外側に設けられた左右にスライドする網戸とを有し、かつ前記レール部の上面を含んで前記下枠の上面全体を略フラットに形成した外部開口用下枠フラットサッシであって：
前記下枠の上方に、上面が略フラットな前記レール部と、このレール部の室内側と室外側とにそれぞれ前記レール部と略同じ高さの室内側立ち上がり片及び室外側立ち上がり片とを並設し、
前記障子にはその下框の室内側垂下片及び室外側垂下片を形成し、
前記室内側立ち上がり片と前記レール部側面とで前記室内側垂下片の室内側ガイド溝を、並びに前記室外側立ち上がり片と前記レール部側面とで前記室外側垂下片の室外側ガイド溝を、それぞれ形成し、
前記室外側立ち上がり片を網戸走行用のレール部に利用し、
前記網戸下框に前記室外側ガイド溝内に嵌り込む長手方向に沿う呑込み片を形成し、
この呑込み片が前記障子の室外側垂下片と共に前記室外側ガイド溝内に近接状態で呑込まれている、
ことを特徴とする外部開口用下枠フラットサッシの防虫装置。
【００１３】
（作用効果）
本発明では、障子の下框の室内側だけでなく、室外側にも垂下片が形成されているので、この室外側垂下片によって、室外側の障子面や窓ガラスに沿って落下した雨水の室内への侵入が拒まれる。すなわち、当該室外側垂下片は実質的な水切りとして機能する。したがって、この室外側垂下片で水切りを行い、かつ室内側垂下片と横タイト材とで水密性や気密性を確実に確保することができる。具体的には、室外側垂下片で水切りが行われることにより、雨水の大半は室外側ガイド溝に流れ落ち下枠中空部を介して外部に排出されるので、横タイト材によるタイトラインよりも上に位置するレール部の上面に雨水が浸入しにくく、仮にレール部の上面に雨水が浸入した場合でも、室内側垂下片と横タイト材により室内へ漏水をすることなく、雨水は室内側ガイド溝に落ち、下枠中空部を介して外部に排出される。つまり、水切りラインとタイトラインを別々に設ける二重構造により、タイトラインの負担を軽減させ、水密性や気密性を高めている。
また、室外側垂下片を設けレール部の上面への雨水の侵入を少なくしたことにより、引き違いサッシの内障子や、片引きサッシ又は引き分けサッシの嵌め殺し障子の、召し合わせ框の室外側下部や当該框の底部における水密性や気密性の確保がしやすくなっている。すなわち、レール部の上面に位置する、召し合わせ框の底部の水密性や気密性は高くなっており、また、室外側垂下片を設けたことにより、召し合わせ框の室外側下部の雨仕舞を、その構造を複雑にせずに確実に行うことができる。
さらに、室外側垂下片を設けたことにより、レール部の上面に埃や塵が溜まりにくく、メンテナンス性にも優れており、また、外部からバール等を差し込まれるような隙間がないため，防犯性にも優れている。
他方で、本発明では、室外側立ち上がり片とレール部側面とで障子の室外側垂下片の室外側ガイド溝を形成するが、前記室外側立ち上がり片を網戸走行用のレール部に利用する。そして、網戸下框に前記室外側ガイド溝内に嵌り込む長手方向に沿う呑込み片を形成し、この呑込み片を障子の室外側垂下片と共に前記室外側ガイド溝内に近接状態で呑込ませる形態を採っている。
その結果、虫は網戸下框の呑込み片と障子の室外側垂下片との近接した隙間から室内に侵入し難くなる。しかも、この形態では、サッシ下部において、室外側ガイド溝が長手方向に連続した防虫ラインとなるので、基本的には室内側への防虫ラインを考慮する必要がなく、単純な形態の防虫性能に優れる防虫ラインを構成できる。
さらに、室外側ガイド溝内に虫が侵入したとしても、障子の室外側垂下片とレール部との隙間を虫が乗り越えることが必要となり、もって虫が侵入し難いものとなる。
【００１４】
＜請求項２項記載の発明＞
室外側ガイド溝内における、網戸の中央側縦框及び障子の召し合わせ框の部位に、防虫用仕切り材を設けた請求項１記載の外部開口用下枠フラットサッシの防虫装置。
【００１５】
（作用効果）
室外側ガイド溝内における、網戸の中央側縦框及び障子の召し合わせ框の部位に、防虫用仕切り材を設けた。したがって、室外側ガイド溝内に入り込み室内へと長手方向に侵入する虫については、防虫用仕切り材にて阻止できる。
【００１６】
＜請求項３項記載の発明＞
下枠のレール部に沿って左右にスライドする内外障子と、その外側に設けられた左右にスライドする網戸とを有し、かつ前記レール部の上面を含んで前記下枠の上面全体を略フラットに形成した外部開口用下枠フラットサッシであって：
前記下枠中空部の上方に、室内側から室外側にかけて順に、前記中空部上方に、第１の立ち上がり片、内障子用のレール部、第２の立ち上がり片、外障子用のレール部及び第３の立ち上がり片を形成し、かつ前記第１〜第３の立ち上がり片は前記レール部と略同じ高さに形成し、
前記内障子及び外障子は、それぞれの下框に室内側垂下片及び室外側垂下片を形成し、
前記内障子用のレール部室内側側面と前記第１の立ち上がり片とで内障子の前記室内側垂下片の室内側ガイド溝を、及び前記内障子用のレール部室外側側面と前記第２の立ち上がり片とで内障子の前記室外側垂下片の室外側ガイド溝を形成し、また、前記外障子用のレール部室内側側面と前記第２の立ち上がり片とで外障子の前記室内側垂下片の室内側ガイド溝を、及び前記外障子用のレール部室外側側面と前記第３の立ち上がり片とで外障子の前記室外側垂下片の室外側ガイド溝を形成し、
前記第３の立ち上がり片を網戸走行用のレール部に利用し、
前記網戸下框に前記外障子の室外側ガイド溝内に嵌り込む長手方向に沿う呑込み片を形成し、
この呑込み片が前記障子の室外側垂下片と共に前記外障子の室外側ガイド溝内に近接状態で呑込まれている、
ことを特徴とする外部開口用下枠フラットサッシの防虫装置。
【００１７】
（作用効果）
内外障子からなる引き違いサッシにおける内外障子の下框の室内側だけでなく、室外側にも垂下片が形成されているので、この室外側垂下片によって、室外側の障子面や窓ガラスに沿って落下した雨水の室内への侵入が拒まれる。すなわち、当該内障子及び外障子の室外側垂下片は実質的な水切りとして機能する。したがって、これら室外側垂下片で水切りを行い、かつ室内側垂下片と横タイト材とで水密性や気密性を確実に確保することができる。具体的には、内障子及び外障子の室外側垂下片で水切りが行われることにより、雨水の大半はそれぞれの室外側ガイド溝に流れ落ち下枠中空部を介して外部に排出されるので、横タイト材によるタイトラインよりも上に位置するレール部の上面に雨水が浸入しにくく、仮にレール部の上面に雨水が浸入した場合でも、内障子及び外障子の室内側垂下片と横タイト材により室内へ漏水をすることなく、雨水はそれぞれの室内側ガイド溝に落ち、下枠中空部を介して外部に排出される。つまり、水切りラインとタイトラインを別々に設ける二重構造により、タイトラインの負担を軽減させ、水密性や気密性を高めている。
また、内障子及び外障子の室外側垂下片を設けレール部の上面への雨水の侵入を少なくしたことにより、引き違いサッシの内障子の召し合わせ框の室外側下部や当該框の底部における水密性や気密性の確保がしやすくなっている。すなわち、内障子用のレール部の上面に位置する、召し合わせ框の底部の水密性や気密性は高くなっており、また、内障子の下框に室外側垂下片を設けたことにより、召し合わせ框の室外側下部の雨仕舞を、その構造を複雑にせずに確実に行うことができる。
さらに、内障子及び外障子の下框に室外側垂下片を設けたことにより、レール部の上面に埃や塵が溜まりにくく、メンテナンス性にも優れており、また、外部からバール等を差し込まれるような隙間がないため，防犯性にも優れている。
【００１８】
防虫に関しては、請求項１の作用効果の欄で説明したと同様の作用効果を奏するものである。
【００１９】
＜請求項４項記載の発明＞
外障子の室外側ガイド溝内における、網戸の中央側縦框及び外障子の召し合わせ框の部位に、第１の防虫用仕切り材を設けた請求項３記載の外部開口用下枠フラットサッシの防虫装置。
【００２０】
（作用効果）
第１の防虫用仕切り材を設けたことによって、請求項２作用効果の欄で説明したと同様の作用効果を奏するものである。
【００２１】
＜請求項５項記載の発明＞
外障子の室内側ガイド溝内における、外障子の召し合わせ框と内障子の召し合わせ框との召し合わせ部位に、第２の防虫用仕切り材を設けた請求項３または４記載の外部開口用下枠フラットサッシの防虫装置。
【００２２】
（作用効果）
仮に、虫が室外側ガイド溝内に入り込み、室内へと長手方向に侵入する虫については、第２の防虫用仕切り材にて阻止できる。
【００２３】
＜請求項６項記載の発明＞
網戸の中央側縦框及び外方縦框の室内面側に、それぞれ対向する障子の縦框及び枠体の縦枠に当接するタイト材を設けた請求項１〜５のいずれか１項に記載の外部開口用下枠フラットサッシの防虫装置。
【００２４】
（作用効果）
縦方向の防虫ラインを形成できる。
【００２５】
【発明の実施の形態】
次に、本発明の実施の形態を説明するに先立って、理解を深めるために、実施の形態に含まれる実施態様を予め説明しておく。
『実施態様の説明』
前述の特許文献１のように、障子下框の室内側の垂下片と横タイト材のみによる水密性と気密性の確保には、以下のような問題点がある。
【００２６】
第１に、垂下片（スライド片）が室内側にのみ形成されているので、図２１（ａ）の点線で囲った範囲に示すように、内障子１及び外障子２や窓ガラス３に吹き付けられた雨水は、障子下框１ａ、２ａの下部の室外側から侵入し、障子下框垂下片１ｃ、２ｃと横タイト材７６によるタイトラインよりも上に位置する下枠レール部の上面４，５に溜まりやすいので、当該横タイト材７６の負担が大きく、水密性に不利である。
【００２７】
第２に、下枠レール部上面４、５まで雨水が侵入し、かつ溜まるので、引き違いサッシの内障子１等の召し合わせ框の室外側下部や当該框の底部における水密性や気密性の確保が難しくなっている。
【００２８】
第３に、図２２（ａ）の点線で囲った範囲に示すように、下枠レール部上面４，５には埃や塵も溜まりやすく、また、これらが溜まった下枠レール部上面４，５を障子の戸車６が移動することにより、人目につきやすいレール部上面４，５に細かな傷がつき、美感等の観点から、頻繁に補修や交換等のメンテナンスを行う必要が生じる。
【００２９】
第４に、内障子及び外障子の室外側に垂下片が形成されていないので、図２３（ａ）に示すように、室外側から内障子及び外障子下框１ａ，２ａの底部と下枠レール部の上面４，５との隙間に、バール７等が差し込まれて、障子が持ち上げられることによって内障子及び外障子１，２が外され、屋外からの侵入を容易にさせるという防犯上の危険性を伴っている。
【００３０】
上記課題を解決するための実施の態様は、次のとおりである。
＜実施の態様１＞
実施の態様１は、下枠のレール部に沿って、障子下框に設けられた戸車を介して左右にスライドする障子を有し、かつ前記レール部の上面を含んで前記下枠の上面全体を略フラットに形成した、外部開口用下枠フラットサッシであって、
前記下枠内に外部と連通する排水口を有する中空部を形成し、
前記障子はその下框の室内側垂下片及び室外側垂下片を形成し、
前記中空部上方に、上面が略フラットな前記レール部と、このレール部の室内側と室外側とにそれぞれ前記レール部と略同じ高さの室内側立ち上がり片及び室外側立ち上がり片とを並設し、
前記室内側立ち上がり片と前記レール部側面とで前記室内側垂下片の室内側ガイド溝を、並びに前記室外側立ち上がり片と前記レール部側面とで前記室外側垂下片の室外側ガイド溝を、それぞれ形成し、
前記室内側垂下片と前記室内側立ち上がり片との間に横タイト材を摺接するように介在させ、
前記室外側ガイド溝に水抜き孔を設けて、前記下枠中空部を介して外部と連通させる
ことを特徴とする外部開口用下枠フラットサッシである。
【００３１】
（作用効果）
この実施の態様１における作用効果に関しては、請求項１の作用効果の欄において記述した。
【００３２】
＜実施の態様２＞
実施の態様２は、下枠のレール部に沿って、障子下框に設けられた戸車を介して左右にスライドする障子を有し、かつ前記レール部の上面を含んで前記下枠の上面全体を略フラットに形成した、内外障子からなる引き違いサッシにおける外部開口用下枠フラットサッシであって、
前記下枠内に外部と連通する排水口を有する中空部を形成し、
前記内障子及び外障子は、それぞれの下框に室内側垂下片及び室外側垂下片を形成し、
サッシ下枠を室内側から室外側を見て、前記中空部上方に、第１の立ち上がり片、内障子用のレール部、第２の立ち上がり片、外障子用のレール部及び第３の立ち上がり片を形成し、かつ前記第１〜第３の立ち上がり片は前記レール部と略同じ高さであり、
前記内障子用のレール部室内側側面と前記第１の立ち上がり片とで内障子の前記室内側垂下片の室内側ガイド溝を、及び前記内障子用のレール部室外側側面と前記第２の立ち上がり片とで内障子の前記室外側垂下片の室外側ガイド溝を形成し、
また、前記外障子用のレール部室内側側面と前記第２の立ち上がり片とで外障子の前記室内側垂下片の室内側ガイド溝を、及び前記外障子用のレール部室外側側面と前記第３の立ち上がり片とで外障子の前記室外側垂下片の室外側ガイド溝を形成し、
前記内障子の室内側垂下片と前記第１の立ち上がり片との間、及び前記外障子の室内側垂下片と前記第２の立ち上がり片との間とに横タイト材を摺接するように介在させ、
前記内障子及び前記外障子用の室外側ガイド溝と、前記外障子用の室内側ガイド溝とに水抜き孔を設けて、前記下枠中空部を介して外部と連通させる
ことを特徴とする外部開口用下枠フラットサッシである。
【００３３】
（作用効果）
この実施の態様２における作用効果に関しては、請求項２の作用効果の欄において記述した。
【００３４】
＜実施の態様３＞
実施の態様３は、内外障子からなる引き違いサッシにおける内障子の召し合わせ框の室外面に、当該室外面と外障子の召し合わせ框の室内面との間を気密にする縦タイト材を形成し、
内障子の召し合わせ框の室外面下部及び当該框底部にブロック体を設け、当該框室外面下部と外障子の召し合わせ框の室内面下部との間を気密にするとともに、当該内障子の召し合わせ框底部と内障子用のレール部上面との間を気密にし、
また、前記引き違いサッシを閉じた状態で前記内障子の召し合わせ框の底部に位置する、レール部の室内側及び室外側のガイド溝にタイト材を埋設し、
さらに、前記引き違いサッシを閉じた状態で前記縦タイト材、前記ブロック体及び前記埋設されたタイト材により形成されたタイトラインよりも外部かつ近接した位置の下枠に、水抜き孔を設けた実施の態様１又は２記載の外部開口用下枠フラットサッシである。
【００３５】
（作用効果）
内外障子からなる引き違いサッシにおける内障子の召し合わせ框室外面と外障子の召し合わせ框の室内面との間を縦タイト材により気密状態にすることによって、内障子の召し合わせ框及び外障子の召し合わせ框に吹き付けられた雨水は、室内への侵入が拒まれ、それぞれの召し合わせ框に沿って落下する。
次に、それぞれの召し合わせ框に沿って落下した雨水や召し合わせ框下部に吹き付けられた雨水に対しては、内障子の召し合わせ框室外面下部と外障子の召し合わせ框の室内面下部との間の隙間部分を気密にするブロック体により、室内への漏水を防止することができる。加えて、このブロック体により、内障子の召し合わせ框底部と内障子用のレール部上面との間が気密状態にされるので、下枠レール部の上面からの雨水の侵入を防止することができる。
また、前記引き違いサッシを閉じた状態で前記内障子の召し合わせ框の底部に位置するレール部の室内側及び室外側のガイド溝にタイト材を埋設することにより、ガイド溝から室内への雨水の流れ込みを防止することができる。
さらに、前記縦タイト材、前記ブロック体及び前記埋設されたタイト材により形成されたタイトラインで気密と水密を確実にするだけではなく、このタイトラインよりも外部かつ近接した位置の下枠に設けた水抜き孔により、下枠中空部を介して雨水の外部への排出を促進することで、室内への漏水防止効果を高めている。
【００３６】
＜実施の態様４＞
実施の態様４は、片引きサッシ又は引き分けサッシにおける嵌め殺し部の縦枠の室外面に、当該室外面と外障子の召し合わせ框の室内面との間を気密にする縦タイト材を形成し、
前記嵌め殺し障子部の縦枠の室外面下部に、当該室外面下部と外障子の召し合わせ框の室内面下部との間を気密にするブロック体を設け、
また、前記片引きサッシ又は引き分けサッシにおける外障子を閉じた状態で、前記縦タイト材及び前記ブロック体により形成されたタイトラインよりも外部かつ近接した位置の下枠に、水抜き孔を設けた実施の態様１記載の外部開口用下枠フラットサッシである。
【００３７】
（作用効果）
片引きサッシ又は引き分けサッシにおける嵌め殺し部の縦枠の室外面と外障子の召し合わせ框の室内面との間を縦タイト材により気密状態にすることによって、嵌め殺し部の縦枠及び外障子の召し合わせ框に吹き付けられた雨水は、室内への侵入が拒まれ、それぞれの召し合わせ框に沿って落下する。
【００３８】
次に、それぞれの召し合わせ框に沿って落下した雨水や召し合わせ框下部に吹き付けられた雨水に対しては、嵌め殺し部の縦枠室外面下部と外障子の召し合わせ框の室内面下部との間の隙間部分を気密にするブロック体により、室内への漏水を防止することができる。
【００３９】
また、前記縦タイト材及び前記ブロック体により形成されたタイトラインで気密と水密を確実にするだけではなく、このタイトラインよりも外部かつ近接した位置の下枠に設けた水抜き孔により、下枠中空部を介して雨水の外部への排出を促進することで、室内への漏水防止効果を高めている。
【００４０】
＜実施の態様５＞
実施の態様５は、前記レール部は、一対の立ち上がり片で室内側及び室外側側面を形成し、かつ着脱自在なレール部の上面構成部材を前記レール部の室内側及び室外側側面と嵌合することで形成される、実施の態様１乃至４のいずれかの１項に記載の外部開口用下枠フラットサッシである。
【００４１】
（作用効果）
レール部の上面を略フラットにした下枠フラットサッシでは、室内への雨水の侵入を防ぐために、一定以上の水密性、気密性を確保するとともに、防水効果を高めるために、下枠に水抜き孔を設けてタイトラインの外側で排水を促進させる必要がある。
しかし、水抜き孔にゴミ等が詰まり、外部に通じている中空部に排水不可能となってしまっては、タイトラインを超えて室内に雨水が侵入する虞が生じる。
【００４２】
そこで、レール部の上面を取外し可能な構造としてレール部の下部のメンテナンスを可能とし、このレール部の下部を清掃することにより、水抜き孔の詰まりを防止し、もって防水効果を確実なものとし、併せてゴミ等の蓄積による不衛生状態を防止することができる。
【００４３】
＜実施の態様６＞
引き違いサッシを閉じた状態で内障子の召し合わせ框の底部に位置する、レール部の前記上面構成部材並びに前記レール部の室内側及び室外側側面で囲まれる範囲に、タイト材が埋設されている実施の態様５記載の外部開口用下枠フラットサッシである。
【００４４】
（作用効果）
引き違いサッシを閉じた状態で内障子の召し合わせ框の底部に位置する、レール部の前記上面構成部材並びに前記レール部の室内側及び室外側側面で囲まれる範囲に、タイト材が埋設されることにより、レール部下部に流れ込んだ雨水の室内への侵入が拒まれるため、防水効果を高めることができる。
【００４５】
『具体的な実施の形態』
以下、本発明の実施の形態を図面を参照しながら説明する。
本発明に係るサッシの一実施例である縦及び横断面図を、引き違いサッシについて図１〜４に、片引きサッシについて図６及び７に示す。図１〜４及び６，７に示すように、当該サッシは、下枠１０、上枠７０、左縦枠７１及び右縦枠７２で枠体を形成し、この枠体に、引き違いサッシの場合には内障子３０及び外障子４０が装着され、又は片引きサッシ若しくは引き分けサッシの場合には、嵌め殺し障子６０及び外障子４０が装着され、当該サッシが構成される。
【００４６】
下枠１０の上面全体は略フラットに形成され、図９に示すように、室内の床面から下枠１０の上面、グレーチング部材７３、バルコニー７４に設けられたウッドデッキ７５等を略フラットに形成することができる。
【００４７】
以下に、内障子３０及び外障子４０からなる引き違いサッシを例にして、本発明に係るサッシの構造を詳述することにする。
【００４８】
＜障子構造＞
図１〜４に示すように、外障子４０は、外障子下框４１及び上框４２と、並びに外障子縦框４３及び召し合わせ框４４とで障子を形成し、框で四周を囲まれた内部にガラス等が装着される。また、外障子下框の底部４５には、戸車４６が設けられており、この戸車４６が下枠レール部の上面１２ａを回動することにより、外障子４０が左右に移動する。
【００４９】
さらに、外障子下框４１には、室内側と室外側にそれぞれ垂下片４７，４８が延在している。上記障子の構造は、内障子３０においても、後述するブロック体５０を除いては略同様である。
【００５０】
本発明に係る内障子下框３６と外障子下框４１には、室内側垂下片３２、４７に加えて室外側垂下片３３、４８が設けられているので、図２５（ｂ）の点線で囲む範囲に示すように、室外側垂下片３３、４８によって、室外側の障子面や窓ガラスに沿って落下した雨水の室内への侵入が拒まれる。すなわち、室外側垂下片３３、４８は実質的な水切りとして機能している。
【００５１】
したがって、室外側垂下片３３、４８で水切りが行われることにより、雨水の大半は下枠室外側ガイド溝１７，１９に流れ落ち、中空部２１を介して外部に排出されるので、横タイト材７６によるタイトラインよりも上に位置するレール部の上面１１ａ、１２ａに雨水が浸入しにくくなっており、かつ室内側垂下片３２、４７と後述する横タイト材７６とで水密性や気密性を確実に確保することができる。
【００５２】
また、室外側垂下片３３、４８を設けたことにより、図２６（ｂ）の点線で囲った範囲に示すように、レール部の上面１１ａ、１２ａに埃や塵が溜まりにくく、そのため戸車３１，４６移動等による傷もつきにくくメンテナンス性にも優れており、また、図２７（ｂ）に示すように外部からバール７等を差し込まれるような隙間がなく、さらに、図２に示すように、サッシ右縦枠７２には、突出片７２ａを設けて内障子縦框とサッシ右縦枠７２との間にバール等が差し込まれる隙間をなくしており、同様に、外障子縦框４３とサッシ左縦枠７１との隙間もなくしているので防犯性にも優れている。
【００５３】
＜下枠構造＞
図１及び図７（ａ）に詳細を示すように、下枠１０には、サッシ下枠を室内側から室外側を見て、第１の立ち上がり片１３、内障子３０に設けられた戸車３１が回動する内障子用のレール部１１、第２の立ち上がり片１４、及び外障子４０に設けられた戸車４６が回動する外障子用のレール部１２及び第３の立ち上がり片１５が形成されている。
【００５４】
図１及び図７（ａ）に示すように、内障子用のレール部室内側側面１１ｂと第１の立ち上がり片１３とで内障子の室内側垂下片３２の室内側ガイド溝１６を、及び内障子用のレール部室外側側面１１ｃと第２の立ち上がり片１４とで内障子の室外側垂下片３３の室外側ガイド溝１７を形成している。なお、図７（ａ）中の斜線部分は、後述する水抜き孔、結露水孔、切欠きの部分を示しており、図７（ｂ）には、水抜き孔２０ａ部分の部分断面を示している。
【００５５】
外障子用のレール部室内側側面１２ｂと第２の立ち上がり片１４とで外障子の室内側垂下片４７の室内側ガイド溝１８を、及び外障子用のレール部室外側側面１２ｃと第３の立ち上がり片１５とで外障子の室外側垂下片４８の室外側ガイド溝１９を形成している。
【００５６】
また、内障子の室内側垂下片３２と第１の立ち上がり片１３との間、及び外障子の室内側垂下片４７と第２の立ち上がり片１４との間を気密及び水密にするために、横タイト材７６が設けられており、この横タイト材７６とそれぞれの室内側垂下片３２，４７とが摺接及び密接することにより、下枠１０におけるタイトラインの一部が形成されている。
【００５７】
ここで、第２の立ち上がり片１４は、図７（ａ）に示すように、排水溝としても機能するガイド溝１７とガイド溝１８とを区分けしている。この第２の立ち上がり片１４の上面１４ａは平面であり、かつ外障子用の横タイト材７６を取付けているので、実質的な外障子４０のタイトラインを形成している。好ましくは、横タイト材７６も上面１４ａと同一平面になるほうがよい。
【００５８】
さらに、内障子及び外障子用の下枠室外側ガイド溝１７，１９と外障子用の室内側ガイド溝１８には、排水溝としても機能するガイド溝に溜まった雨水を排出する水抜き孔２０ａ、２０ｃ、２０ｄ、２０ｅが形成されており、水抜き穴２０ａ、２０ｃ、２０ｄ、２０ｅに落ちた雨水は、下枠内に形成された中空部２１に流れ落ち、この中空部２１は、排水口２２を介して外部と連通しているため、最終的に雨水は、外部に排出されることになる。同様に、結露水孔２０ｆにより、結露水は、結露水排水弁２０ｇを通って排水口２２を介して外部に排出される。
【００５９】
すなわち、本発明に係るサッシ構造では、内障子下框３６及び外障子下框４１に、室外側垂下片３３、４８が設けられているので、室外側垂下片３３、４８が実質的な水切りとして機能するが、仮にレール部の上面１１ａ、１２ａに雨水が浸入した場合でも、室内側垂下片３３，４７と横タイト材７６により室内へ漏水をすることなく、雨水は下枠室内側ガイド溝１６，１８に落ち、中空部２１を介して外部に排出される。つまり、図１９に示すように、水切りライン８４とタイトライン８５を別々に設ける二重構造により、タイトライン８５の負担を軽減させ、水密性や気密性を高めているのである。
【００６０】
下枠１０の材質としては、アルミニウム合金等からなり、下枠自体は押出成形された部材によって形成されている。下枠１０の構成として、図７（ａ）に示すように、下枠レール部の上面１１ａ、１２ｂを、下枠のベースを構成する下枠部材２３とは別部材とする場合、すなわちレール部の上面１１ａ、１２ａが取外し可能な下枠レール部の上面構成部材２４，２５を別に製造し、出来上がってからそれぞれを下枠部材２３の内障子用レール部立ち上がり片１１ｅ、１１ｆ、外障子用の立ち上がり片１２ｅ、１２ｆに嵌合することが考えられる。上面構成部材２４，２５を別部材とすると、図１１に示すように、レール部の下部溝１１ｄ，１２ｄに水抜き孔２０ｂ、２０ｄ、結露水孔２０ｆを容易に設けることができるだけでなく、この水抜き孔２０ｂ、２０ｄ、結露水孔２０ｆに詰まったゴミなどを清掃し目詰まりによる室内への漏水を防ぐことができる。さらに、ゴミ等の蓄積による不衛生状態を防止することができる。
【００６１】
なお、図１０（ａ）、（ｂ）に示すように、下枠部材２３ａ、２３ｂとして下枠を一体成形する場合、すなわち、中空部２１、レール部１１，１２並びに第１〜第３の立ち上がり片１２，１３，１４等を一体成型することも考えられる。ここで、例えば、図１０（ｂ）のような、レール部の下部溝１１ｄ、１２ｄに相当する空間が中空部２１と一体になっている下枠部材２３ｂでは、これらレール部の下部溝１１ｄ、１２ｄがないので、レール部の下部溝１１ｄ、１２ｄがある場合に必要な、清掃等のメンテナンスは不要である。
【００６２】
図１１（ａ）、（ｂ）は、下枠レール部の上面構成部材２４，２５を取外した状態の平面図及び下枠断面図を示している。下枠１０には、水抜き孔２０ａ，２０ｂ、２０ｃ、２０ｄ、２０ｅが設けられており、これらの水抜き孔２０ａ，２０ｂ、２０ｃ、２０ｄ、２０ｅは、下枠内に形成された中空部２１と連通し、内障子及び外障子用の下枠室外側ガイド溝１７，１９と外障子用の室内側ガイド溝１８や内障子及び外障子用の下枠レール部の下部溝１１ｄ、１２ｄに溜まった雨水が、この中空部２１に流れ落ちるようになっている。同様に、結露水孔２０ｆにより、結露水も逆止弁つき結露水排水弁２０ｇを通って中空部２１に流れ落ちる。また、ガイド溝とレール部の下部溝との間を連通させるための切欠き２６も設けられている。
【００６３】
ここで、レール溝１１ｄ、１２ｄに設けられた水抜き孔２０ｂ、２０ｄについては、レール部の上面１１ａ、１２ａを乗り越えガイド溝１６、１８、に侵入した雨水があっても、外障子用レール部の室内側立ち上がり片１２ｅの切欠き２６及び内障子用レール部の室内側立ち上がり片１１ｅの切欠き２６により水抜き孔２０ｂ、２０ｄで排出され、また、風圧等で中空部２１からのしぶき（吹き上げ状態）があっても、レール部の上面でカバーされており、横タイト材７６へのしぶきはかかり難くしてある。
【００６４】
下枠の中空部２１には、外部と連通する排水口２２が設けられており、内障子及び外障子用の下枠室外側ガイド溝１７，１９と外障子用の室内側ガイド溝１８や内障子及び外障子用の下枠レール部の下部溝１１ｄ、１２ｄから水抜き孔２０ａ，２０ｂ、２０ｃ、２０ｄ、２０ｅを介して流れ落ちてきた雨水や結露水孔２０ｆから結露水排水弁２０ｇを通って落ちてきた結露水をこの排水口２２から、排出するようになっている。なお、この排水口２２には、外部からの風や、雨水、虫等の侵入を防ぐために、蓋２２ａが取り付けられており、逆止弁の機能を果たしている。
【００６５】
＜召し合わせ框部分の気密・水密構造＞
内障子の召し合わせ框の室外面３４ａと外障子の召し合わせ框の室内面４４ａとの間には、内外障子を閉じた状態で内障子の召し合わせ框３４と外障子の召し合わせ框４４とが噛み合い、外部からの風圧に耐えうるように、煙返し３４ｂ、４４ｂが設けられている。このうち、内障子の召し合わせ框の室外面３４ａに設けられた煙返し３４ｂには、内外障子が閉じた状態で、内障子の召し合わせ框の室外面３４ａと外障子の召し合わせ框の室内面４４ａとの間を気密にするための縦タイト材７８が設けられている。この縦タイト材７８は、内障子の召し合わせ框の室外面３４ａと外障子の召し合わせ框の室内面４４ａとの間を密接して気密性や水密性を確保し、内障子の召し合わせ框３４及び外障子の召し合わせ框４４に吹き付けられた雨水の室内への侵入を防ぐ。そして、縦タイト材７８はその下端で、図１２に示すように、後述する召し合わせ框下部気密ブロック５１の側面で密接しており、縦タイトラインを形成している。なお、この縦タイト材７８を外障子の召し合わせ框の室内面４４ａに設けてもよい。
【００６６】
内障子の召し合わせ框の室外面３４ａ下部及び当該框底部３４ｃには、気密ブロック体５０が設けられている。この気密ブロック体５０は、内障子の召し合わせ框の室外面３４ａ下部と外障子の召し合わせ框の室内面４４ａ下部との間を気密・水密状態にするとともに、内障子の召し合わせ框底部３４ｃと第２の立ち上がり片１４の上面１４ａ及び内障子用の下枠レール部上面１１ａとの間を気密・水密状態にする。ここで、第２の立ち上がり片１４には横タイト材７６が取付けられており、かつ第２の立ち上がり片１４の上面１４ａと横タイト材７６とが略同一平面を形成しているので、水密性・気密性は確実なものとなっている。
【００６７】
図１２，１３に示すように、気密ブロック体５０は、召し合わせ框下部気密ブロック５１、召し合わせ框底部気密ブロック５２及び底部気密ブロック用ヒレ５３から構成されている。
【００６８】
召し合わせ框下部気密ブロック５１は、ビス等により内障子の召し合わせ框の室外面３４ａ下部に高さ調整可能に取り付けられ、召し合わせ框底部気密ブロック５２と密接している。このうち、図１４で示す、ヒレの部分５１ａはＡＢＳを含む軟質塩ビ等の弾性体からなっている。この召し合わせ框下部気密ブロック５１の複数のヒレ５１ａにより、複数の気密・水密空間を形成し、内障子の召し合わせ框の室外面３４ａ下部と外障子の召し合わせ框の室内面４４ａ下部との間の高気密・高水密状態を確保し、召し合わせ框に沿って落下した雨水や召し合わせ框下部に吹き付けられた雨水の室内への侵入を防止することができる。
【００６９】
召し合わせ框底部気密ブロック５２は、内障子の召し合わせ框底部３４ｃに嵌合されている。図１５で示すように、この召し合わせ框底部気密ブロック５２には、室内側垂下片５２ａ及び室外側垂下片５２ｂが一体成形されていて、内障子の召し合わせ框底部３４ｃで切欠かれた内障子下框の室内側垂下片３２及び室外側垂下片３３を、実質的に延在させたかたちになっている。なお、召し合わせ框底部気密ブロックの室内側垂下片５２ａ及び室外側垂下片５２ｂは、必ずしも設ける必要がなく、その場合は内障子の下框の室内側垂下片３２及び室外側垂下片３３を延在させればよい。
【００７０】
召し合わせ框底部気密ブロック５２の底には、底部気密ブロック用ヒレ５３が、嵌合又は接着等されている。図１５で示す、底５２ｃが嵌合又は接着等される箇所である。図１６に示す、この底部気密ブロック用ヒレ５３は、ＡＢＳを含む軟質塩ビ等の弾性体からなり、内障子用のレール部上面１１ａと密接することにより、内障子の召し合わせ框底部３４ｃと内障子用のレール部上面１１ａとの間が気密・水密状態にされるので、下枠レール部上面１１ａからの雨水の侵入を防止することができる。なお、図１７に示すように、ヒレ５４ａを別部材とせずに、召し合わせ框底部気密ブロック５４と一体成形してもよい。
【００７１】
なお、これら召し合わせ框底部気密ブロック５１、召し合わせ框底部気密ブロック５２、５４及び底部気密ブロック用ヒレ５３等を、外障子の召し合わせ框の室内面４４ａ下部及び当該框底部４４ｃに設けてもよい。
【００７２】
図１８に示すように、召し合わせ框下部気密ブロック５１、召し合わせ框底部気密ブロック５２及び底部気密ブロック用ヒレ５３からなる気密ブロック体５０に加え、防水効果をさらに高めるため、召し合わせ框下部気密補助ブロック５５を、内障子の召し合わせ框のサッシ長手方向面３４ｄ下部にビス等で取り付けてもよい。召し合わせ框下部気密補助ブロック５５のうち、板状部材５５ａは、ＡＢＳを含む軟質塩ビ等の弾性体からなり、この板状部材５５ａは、外障子の召し合わせ框の室内面４４ａ下部の端部、下枠第２の立ち上がり片１４の上面１４ａ、内障子用の下枠室外側ガイド溝１６、及び内障子用レール部上面１１ａに密接し、雨水の室内への侵入があった場合にガイド溝１７，１８に排出を促して止水するので、防水効果をさらに高めることができる。
【００７３】
また、図１１に示すように、引き違いサッシを閉じた状態で内障子の召し合わせ框の底部３４ｃに位置する、内障子用の下枠レール部の室内側及び室外側のガイド溝１６，１７には、溝付きタイトブロック７９が埋設されている。この溝付きタイトブロック７９は、ガイド溝１６、１７に流れ込んだ雨水の室内への流出を塞き止め、水抜き孔２０ａに雨水を排出させる
【００７４】
さらに、内障子用の下枠レール部の上面１１ａを，下枠のベースを構成する下枠部材２３ｂとは別部材とする場合、すなわち内障子用の下枠レール部の上面１１ａが取外し可能な上面構成部材２４を別部材とする場合には、引き違いサッシを閉じた状態で内障子の召し合わせ框の底部３４ｃに位置する、レール部の上面構成部材２４並びに前記レール部の立ち上がり片１１ｅ，１１ｆで囲まれる範囲（内障子用の下枠レール部の下部溝１１ｄ）に、溝付きタイトブロック８０が埋設されている。この溝付きタイトブロック８０により、上記と同様に、レール部の下部溝１１ｄに流れ込んだ雨水の室内への流出を塞き止め、水抜き孔２０ａ、２０ｄに雨水を排出させる。
【００７５】
図１１に示すように、水抜き孔２０ａは、召し合わせ框タイトライン８５ｃよりも外部かつ近接した位置に設けられており、レール部下部溝１１ｄ、ガイド溝１７、１８の底部及び内障子用レール部室外側立ち上がり片１１ｆ、第２の立ち上がり片１４を切欠いて開孔している。
【００７６】
ここで、第２の立ち上がり片１４のが召し合わせ框タイトライン８５ｃの外で切欠かれ、上面１４ａの連続性が遮断されているのは、上面１４ａに落ちた雨水がそのまま第２の立ち上がり片１４の上面１４ａを伝わって室内側に侵入するのを遮断するとともに、召し合わせ框タイトライン８５ｃの外部での排水を良好にし、召し合わせ框タイトライン８５ｃの負担を軽減するためである。
【００７７】
＜水切りライン及びタイトライン＞
本発明に係るサッシ構造では、内障子３０及び外障子４０に室外側垂下片３３，４８を設け下枠レール部の上面１１ａ，１２ａへの雨水の侵入を少なくしたことにより、下枠全体として水密性や気密性を高めている。すなわち、図１９（ａ）で示すように、内障子３０及び外障子４０に室外側垂下片３３，４８による水切りライン８４と、上記に述べた、内障子及び外障子の室内側垂下片３２，４７と横タイト材７６との密接、内障子召し合わせ框３４部分の縦タイト材７８、気密ブロック５０、溝付きタイトブロック７９，８０及び必要に応じて召し合わせ框下部気密補助ブロック５５を加えた、内障子室内側タイトライン８５ａ、外障子室内側タイトライン８５ｂ及び召し合わせ框タイトライン８５ｃより構成される下枠タイトライン８５とを別々に設ける二重構造により、タイトライン８５の負担を軽減させ防水性を高めている。
【００７８】
また、内障子３０及び外障子４０に室外側垂下片３３，４８を設けたことにより、引き違いサッシの内障子３０の召し合わせ框の室外側３４ａ下部や当該框の底部３４ｃにおける水密性や気密性の確保を容易にしている。すなわち、レール部の上面１１ａに位置する、召し合わせ框の底部３４ｃの水密性や気密性は高くなっている。
【００７９】
さらに、内障子３０及び外障子４０に室外側垂下片３３，４８を設けたことにより、召し合わせ框の室外側３４ａ下部の気密ブロック５０、溝付きタイトブロック７９，８０及び水抜き孔２０ａによる雨仕舞を、その構造を複雑にせずに確実に行うことができるようにしている。
【００８０】
他方、当然のことながら、本発明に係るサッシは、図２〜４で示すように、左右のサッシ縦枠７１、７２には、縦タイト材８１を設けており、引き違いサッシを閉じた状態で、外障子の縦框４３の室内面及び内障子の縦框３５の室内面とそれぞれの縦タイト材８１とを密接させ、サッシ高さ方向のタイトラインも形成しており、下枠のタイトライン８５と実質的に一体化して室内への漏水を防いでいる。
【００８１】
本発明の別の実施形態としては、片引きサッシ又は引き分けサッシ等の開閉式外部開口部への適用が考えられる。これらのサッシと引き違いサッシとの大きな違いは、内障子３０の代わりに嵌め殺し部６０が設けられることである。したがって、サッシ構造の違いとしては、図７で示すように、引き違いサッシの場合に必要であった内障子用のレール部１１がなくなり、この部分の防水対策が不要になる。
【００８２】
＜グレーチング装置＞
本発明に係るグレーチング装置については、先に図９を参照して若干説明したが、詳細を図１７〜図２１に図示した。なお、図２０及び図２１は、片引き障子の例であるが、内外障子からなる引違いサッシにおいても、当然に適用できるものであることを予め述べておく（図９は内外障子からなる引違いサッシにグレーチング装置を設けた例を示してある。）。
【００８３】
本発明に従って、図９にも示されているように、前述の構造の外部開口用下枠フラットサッシと、室外側のデッキ７５と、これらの間を塞ぐグレーチング部材７３とを略フラットに配設してグレーチング装置を構成してある。
【００８４】
図１及び図２０に示すように、下枠１０から網戸８２の走行用のレール部（第３の立ち上がり片）１５を立ち上げて形成してある。すなわち、第３の立ち上がり片１５を網戸８２の走行用のレール部としてある例である。
【００８５】
このレール部１５には、図１及び図２０に示すように、網戸８２の戸車８２ａが走行できるように、レール部１５の上部室外側に突出してフック片部１５Ａが形成され、下向きの係合受け溝１５Ｂが長手方向に連続して形成されている。
【００８６】
他方で、図２３に示すように、下枠１０の長手方向中間に室外側に突出して複数の、実施の形態では３つの受け支持部材９０が配設されている（図２３には長手方向端部に位置する受け支持部材９０のみが図示されている）。
【００８７】
受け支持部材２０は、その室内側端面が下枠１０の室外面に当接し、かつ受け支持部材２０の室内側上部が係合受け溝１５Ｂに係合した状態で下枠１０に固定され、グレーチング部材７３は複数の受け支持部材９０，９０…上に跨って配設されている。
【００８８】
受け支持部材９０の具体例は、図２３及び図２４が参照されるように、隣接して室外側に突出する受け支持板部９０Ａ，９０Ａと、これら室外側を繋ぐ繋ぎ部９０Ｂと、各受け支持板部９０Ａ，９０Ａの室内側において下枠１０の長手方向に沿う固定座部９０Ｃ，９０Ｃとが一体化されたものである。
【００８９】
固定座部９０Ｃ，９０Ｃは各受け支持板部９０Ａ，９０Ａの下部に形成され、かつ、図２０及び図２４に示されているように、固定座部９０Ｃ，９０Ｃの室内面は各受け支持板部９０Ａ，９０Ａの室内側端面より室内側に張出して位置し、他方で、下枠１０の室外面には下側より上側が室外側に張出す段部１０ａが形成されている。
【００９０】
そして、各受け支持板部９０Ａ，９０Ａの室内側上部９０ａ，９０ａが係合受け溝１５Ｂにそれぞれ係合し、各受け支持板部９０Ａ，９０Ａの室内側端面が下枠１０の室外面、より具体的には段部１０ａからレール部１５にかけて当接している。かかる状態で、固定座部９０Ｃ，９０Ｃが下枠１０の室外面に、より具体的には下枠１０の段部１０ａの肩に当てられた状態で当接され，固定具、具体例としては固定ビス９１，９１により固定されている。また、前記段部１０ａの下方には、図２０に示すように、下枠１０に受け突片部１０ｂが室外側に突出して形成されている。
【００９１】
一方で、グレーチング部材７３は、例えばステンレス製とされ、横断面溝形に形成され、その中央に長手方向に間隔を置いて排水用孔が多数形成され、その室内片７３Ａが受け支持板部９０Ａ，９０Ａに形成された係止切欠部９０ａ，９０ａに係止され、室外片７３Ｂが受け支持板部９０Ａ，９０Ａの室外側面にほぼ当たる状態で、複数の受け支持部材９０，９０…上に跨って配設されている。グレーチング部材７３に対し、受け支持部材９０も金属製であるので、図２３に示すように、受け支持部材９０上面に設けた、より具体的には各受け支持板部９０Ａ，９０Ａ上面に設けたゴムまたはプラスチック材９２，９２を介して乗っている。
【００９２】
このように構成されたグレーチング装置においては、受け支持部材９０は、その室内側上部がレール部１５の上部室外側に下向きの係合受け溝１５Ｂに係合し、受け支持部材９０の室内側端面が下枠１０の室外面に当接し、されに受け突片部１０ｂ上に乗る状態で下枠１０に固定されている。したがって、グレーチング部材７３を介しての載荷重に伴う受け支持部材９０の、図１及び図２０基準で反時計回りの回転モーメントを、係合受け溝１５Ｂで受け止めつつ、受け支持部材９０の室内側端面が下枠１０の室外面に当接する突っ張りで支持できる。よって、荷重に対する安定性はビス止めによる場合に比較して、格段に優れたものとなる。
【００９３】
その結果、ビス９１，９１による固定箇所は、特許文献１のように上下それぞれにおいてビス固定が必要となることなく、受け支持部材９０の下部のみで足りる、実施の形態では２つの固定箇所で足りるので、その分施工の手数が削減する。しかも、受け支持部材９０は、その室内側上部９０ａを係合受け溝１５Ｂに係合することで、上下方向に位置決めを行うことができ、位置決めを簡易にかつ正確に行うことができ、下枠フラットサッシ−室外側のデッキ−グレーチング部材のフラット化を確実に行うことができる。さらに、受け支持部材９０の取り付け開始時において、受け支持部材９０の室内側上部９０ａを係合受け溝１５Ｂに係合し、かつ、受け支持部材９０下部を受け突片部１０ｂに乗せておくことにより、受け支持部材９０を手での押さを係続することなく下枠１０に対して仮保持できるので、受け支持部材９０のビス９１，９１固定作業が簡易に行うことができる。
【００９４】
＜防虫装置＞
図１〜図４に示すように、網戸８２は、上框、右框８２Ａ、左框８２Ｂ及び下框８２Ｃで囲まれる框内に防虫網が設けられたもので、図１に図示のように、下框８２Ｃの下部に室外側ガイド溝１９内に嵌り込む長手方向に沿う呑込み片８２ｃが形成されている。
【００９５】
この呑込み片８２ｃは、外障子４０の室外側垂下片４８と共に室外側ガイド溝１９内に近接状態で呑込まれている。ここで「近接状態」における間隔としては、所望の防虫効果によって適宜定めることができるが、通常は５ｍｍ以内であることが望ましい（「近接状態」とは虫が簡単に侵入する１０ｍｍ以上の間隔でないことを意味するための語句としてある。）。
【００９６】
他方、外障子の室外側ガイド溝１９内内における、網戸８２の中央側縦框８２Ａ及び外障子４０の召し合わせ框４４の部位に、第１の防虫用仕切り材９２を設けてある。
【００９７】
第１の防虫用仕切り材９２の形態としては、たとえば図５に示すように、ベース部から間隔を置いたヒレ部９２ａ，９２ａ……が上方に突出したもので、塩化ビニル樹脂などの軟質材料から形成できる。第１の防虫用仕切り材９２のヒレ部９２ａ，９２ａ……が垂下片４８及びまたは呑込み片８２ｃの下端が近接または摺接するように配設される。
【００９８】
また、外障子４０の室内側ガイド溝１８内における、外障子４０の召し合わせ框４４と内障子３０の召し合わせ框４４との召し合わせ部位に、第２の防虫用仕切り材９３を設けてある。第２の防虫用仕切り材９３の形状としては、図５で代替するように、第１の防虫用仕切り材９２と同様な形状を採ることができる。
【００９９】
また、図２及び網戸使用状態を示す図３に注目すると、網戸８２の中央側縦框（右框８２Ａ）及び外方縦框（左框８２Ｂ）の室内面側に、それぞれ外障子４０の縦框４３，４４及び枠体の縦枠７１に当接するタイト材８２ｂ，８２ｂ……を設けて縦の防虫ラインを構成してある。
【０１００】
図４は、仮の網戸使用状態を図示するもので、外障子４０の左右縦框下端にはレール部１２と近接する防虫用のブロックが配され、防虫を図るものである。
【０１０１】
なお、図１に示す塞ぎ材９４により、網戸８２の下框８２Ｃと外障子４０の下框との間からの防虫を図ることができる。また、網戸８２の上部における上枠との間には、適宜の部材を設けて防虫を図ることができる。
【０１０２】
図６及び図７に示す方引きサッシの場合においても、同様の防虫構造を採用できることは勿論である。
【０１０３】
上記の防虫装置の利点は前述の作用効果の欄に記載のとおりである。
【０１０４】
【発明の効果】
以上のとおり、本発明に係る外部開口用下枠フラットサッシの防虫装置によれば、水密性や気密性を高める観点を基礎におきながら、網戸の良好な走行性を確保しつつ、優れた防虫性能を発揮する。
【図面の簡単な説明】
【図１】本発明に係る、引き違いサッシの場合のサッシ下枠構造の縦断面図を示す。
【図２】本発明に係る、引き違いサッシの場合のサッシ構造の横断面図を示す。
【図３】網戸使用状態の横断面図を示す。
【図４】網戸の他の位置状態の横断面図を示す。
【図５】防虫用仕切り材９２の斜視図を示す。
【図６】本発明に係る、方引きサッシの場合のサッシ構造の縦断面図を示す。
【図７】本発明に係る方引きサッシの場合のサッシ構造の横断面図を示す。
【図８】本発明に係る、引き違いサッシの場合のサッシ下枠構造の縦断面の部分拡大図を示す。
【図９】本発明に係る、引き違いサッシを採用したマンション等の、室内から屋外バルコニーまでの縦断面図を示す。
【図１０】本発明に係る、引き違いサッシの場合の、他の実施例のサッシ下枠構造の縦断面の部分拡大図を示す。
【図１１】本発明に係る、引き違いサッシの場合のサッシ下枠構造の水抜き孔、水切り、タイト材の平面配置図及び下枠断面図を示す。
【図１２】気密ブロック体を内障子の召し合わせ框に取り付け、下から見上げた状態を示す。
【図１３】気密ブロック体を内障子の召し合わせ框に取り付け、室外側から見た状態を示す。
【図１４】召し合わせ框下部気密ブロックの射影図、正面図、側面図を示す。
【図１５】召し合わせ框底部気密ブロックの正面図、側面断面図、底面図を示す。
【図１６】底部気密ブロック用ヒレの正面図、正面断面図、底面図を示す。
【図１７】召し合わせ框底部気密ブロックの他の実施例の正面図、射影図を示す。
【図１８】召し合わせ框下部気密補助ブロックの射影図、正面図を示す。
【図１９】下枠の水切りライン、タイトライン及び下枠断面図を示す。
【図２０】本発明に係る、方引きサッシの場合のサッシ構造の縦断面図を示す。
【図２１】本発明に係る方引きサッシの場合のサッシ構造の横断面図を示す。
【図２２】グレーチングの取り付け状態斜視図である。
【図２３】受け支持部材の取り付け状態斜視図である。
【図２４】受け支持部材の平面図である。
【図２５】従来例であるサッシ下枠構造（ｂ）と本発明に係るサッシ下枠構造（ａ）の防水性を比較する図面を示す。
【図２６】従来例であるサッシ下枠構造（ｂ）と本発明に係るサッシ下枠構造（ａ）のメンテナンス性を比較する図面を示す。
【図２７】従来例であるサッシ下枠構造（ｂ）と本発明に係るサッシ下枠構造（ａ）の防犯性を比較する図面を示す。
【符号の説明】
１…従来の内障子、１ａ…従来の内障子下框、１ｃ…従来の内障子下框の垂下片、２…従来例の外障子、２ａ…従来例の外障子下框、２ｃ…従来の内障子下框の垂下片、３…窓ガラス、４…従来例の内障子用の下枠レール部上面、５…従来例の外障子用の下枠レール部上面、６…戸車、７…バール、１０…下枠、１１…内障子用の下枠レール部、１１ａ…内障子用の下枠レール部上面、１１ｂ…内障子用の下枠レール部室内側側面、１１ｃ…内障子用の下枠レール部室外側側面、１１ｄ…内障子用の下枠レール部の下部溝、１１ｅ…内障子用の下枠レール部室内側立ち上がり片、１１ｆ…内障子用の下枠レール部室外側立ち上がり片、１２…外障子用の下枠レール部、１２ａ…外障子用の下枠レール部上面、１２ｂ…外障子用の下枠レール部室内側側面、１２ｃ…外障子用の下枠レール部室外側側面、１２ｄ…外障子用の下枠レール部の下部溝、１２ｅ…外障子用の下枠レール部室内側立ち上がり片、１２ｆ…外障子用の下枠レール部室外側立ち上がり片、１３…第１の立ち上がり片、１４…第２の立ち上がり片、１５…第３の立ち上がり片（網戸走行用のレール部）、１６…内障子用の下枠室内側ガイド溝、１７…内障子用の下枠室外側ガイド溝、１８…外障子用の下枠室内側ガイド溝、１９…外障子用の下枠室外側ガイド溝、２０ａ、２０ｂ、２０ｃ、２０ｄ、２０ｅ…水抜き孔、２１…下枠中空部、２２…排水口、２２ａ…排水口蓋、２３、２３ａ、２３ｂ…下枠部材、２４…内障子用の下枠レール部上面構成部材、２５…外障子用の下枠レール部上面構成部材、２６…切欠き、３０…内障子、３１…内障子戸車、３２…内障子室内側垂下片、３３…内障子室外側垂下片、３４…内障子召し合わせ框、３４ａ…内障子召し合わせ框室外面、３４ｂ…内障子煙返し、３４ｃ…内障子召し合わせ框底部、３４ｄ…内障子召し合わせ框のサッシ長手方向面下部、３５…内障子縦框、３６…内障子下框、４０…外障子、４１…外障子下框、４３…外障子縦框、４４…外障子召し合わせ框、４４ａ…外障子召し合わせ框室外面、４４ｂ…外障子煙返し、４４ｃ…外障子召し合わせ框底部、４５…外障子下框底部、４６…外障子戸車、５０…気密ブロック体、５１…召し合わせ框下部気密ブロック、５１ａ…ヒレ部、５２…召し合わせ框底部気密ブロック、５２ａ…室内側垂下片部、５２ｂ…室外側垂下片部、５２ｃ…底部、５３…底部気密ブロック用ヒレ、５３ａ…ヒレ部、５４…召し合わせ框底部気密ブロック（ヒレ付き）、５４ａ…ヒレ部、５５…召し合わせ框下部補助ブロック、５５ａ…板状部材、６０…嵌め殺し障子、７０…サッシ上枠、７１…サッシ左縦枠、７２…サッシ右縦枠、７２ａ…突出部、７３…グレーチング、７４…バルコニー、７６…横タイト材、７８，８１…縦タイト材、７９、８０…埋設タイト材、８２…網戸、８３…グレーチング、８４…水切りライン、８５…タイトライン、９２…第１の防虫用仕切り材、９３…防虫用仕切り材。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an insect repellent device for a lower frame flat sash for an outdoor opening, which is installed in an outdoor opening of a building and has a substantially flat upper surface of the lower frame.
[0002]
[Prior art]
Conventionally, on a lower frame of a sash installed in an outdoor opening of a building, a rib-shaped rail for rotating a door wheel provided on a lower frame of the sash to slide the sash constituting the sash left and right. A part is formed.
[0003]
Normally, the rail groove sectioned by the rib-shaped rail portion and the rail portion of the inner sash and the outer sash is formed with a step so that the indoor side is higher than the outdoor side from the viewpoint of sash rain. ing. That is, rainwater sprayed on the shoji or window glass falls along the shoji or window glass and accumulates in the rail groove of the lower frame, but a step is provided such that the rail groove is higher on the indoor side than on the outdoor side. The rainwater accumulated in the rail groove prevents the rainwater from entering the indoor side due to its own weight, and the rainwater accumulated in the rail groove is discharged outside.
[0004]
On the other hand, in recent years, from the viewpoint of barrier-free or universal design, a lower frame flat sash in which a rib-shaped rail portion is disposed substantially flat without providing a step between the indoor side and the outdoor side, and furthermore, the rail portion is formed in a rib shape. Also, a lower frame flat sash in which the upper surface of the rail portion is made substantially flat has been developed (for example, see Patent Document 1).
[0005]
In particular, in the lower frame flat sash in which the upper surface of the rail portion is made substantially flat, it is an issue to secure a certain level of watertightness and airtightness. In Patent Document 1, rainwater is prevented from entering the room. For this purpose, an isobar structure is used to make the space between the shoji and the lower frame airtight through a horizontal tight material. Specifically, a hanging piece (sliding piece) is formed on the indoor side of the shoji lower frame, and the hanging piece and the horizontal tight material provided on the indoor side wall of the rail groove of the lower frame provide watertightness and airtightness. Have secured.
[0006]
Further, in this type of lower frame flat sash, an insect repelling device is disclosed in Patent Document 2.
[0007]
[Patent Document 1]
Patent No. 333058 (6 pages, FIG. 1)
[Patent Document 2]
JP-A-2002-242562
[0008]
[Problems to be solved by the invention]
In the insect repellent structure of the lower frame flat sash in Patent Document 2, an insect holding line is formed by providing a lower frame concave portion on the lower frame outdoor side and swallowing a hanging piece provided on a screen door lower frame room outside side wall. In addition, a tight piece is interposed between the bottom of the screen door vertical frame and the lower frame flat surface to form an insect holding line. Also, the indoor side wall of the screen vertical frame and the outdoor side wall of the shoji door frame or the sumo frame. An insect holding line is formed with a vertical tight material interposed therebetween.
[0009]
In the configuration of Patent Document 2, it is essential to form an insect holding line by interposing a tight piece between the bottom of the screen vertical frame and the flat surface of the lower frame.
[0010]
However, it is necessary for the insect control that the tight piece is as close as possible to the lower frame flat surface, but if it is too close, it will contact the lower frame flat surface when sliding the screen door. However, there is a concern that smooth running performance may be impaired.
[0011]
Therefore, a main object of the present invention is to provide a structure that exhibits excellent insect repellent performance while securing good running performance of a screen door, based on a viewpoint of enhancing water tightness and air tightness of a frame and a shoji. It is in.
[0012]
[Means for Solving the Problems]
The present invention that has solved the above problems is as described below.
<Invention according to claim 1>
It has a sliding door that slides left and right along the rail portion of the lower frame, and a screen door that slides left and right provided outside thereof, and makes the entire upper surface of the lower frame substantially flat including the upper surface of the rail portion. A lower frame flat sash for the formed external opening, comprising:
Above the lower frame, the rail section having a substantially flat upper surface, and an indoor-side rising piece and an outdoor-side rising piece having substantially the same height as the rail section are arranged on the indoor side and the outdoor side of the rail, respectively. Set up
Form the indoor side hanging piece and outdoor side hanging piece of the lower frame on the shoji,
The indoor-side guide groove of the indoor-side hanging piece at the indoor-side rising piece and the rail part side surface, and the outdoor-side guide groove of the outdoor-side hanging piece at the outdoor-side rising piece and the rail part side surface, respectively. Forming
Using the outdoor rising piece for a rail portion for screen door traveling,
Forming a swallowing piece along the longitudinal direction that fits in the outdoor guide groove in the screen door lower frame,
This swallowing piece is swallowed in close proximity to the outdoor side guide groove together with the outdoor side hanging piece of the shoji,
An insect repellent device for a lower frame flat sash for external opening.
[0013]
(Effect)
In the present invention, since the hanging pieces are formed not only on the indoor side of the lower frame of the sliding door but also on the outdoor side, the raindrops falling along the sliding door surface and the window glass on the outdoor side by the outdoor hanging pieces. Intrusion into the room is denied. That is, the outdoor side hanging piece functions as a substantial drainer. Therefore, drainage can be performed with the outdoor-side hanging piece, and watertightness and airtightness can be reliably secured between the indoor-side hanging piece and the horizontal tight material. More specifically, since the drainage is performed by the outdoor hanging pieces, most of the rainwater flows into the outdoor guide grooves and is discharged to the outside through the hollow portion of the lower frame. It is difficult for rainwater to penetrate the upper surface of the rail portion located in the area, and even if rainwater infiltrates the upper surface of the rail portion, the rainwater does not leak into the room due to the indoor side hanging piece and the horizontal tight material, and the rainwater flows into the indoor guide groove. And is discharged outside through the lower frame hollow portion. In other words, the double structure in which the draining line and the tight line are separately provided reduces the load on the tight line and increases the watertightness and airtightness.
In addition, by providing an outdoor hanging piece to reduce the infiltration of rainwater on the upper surface of the rail section, the lower part of the outer side of the mating stairs for the inner sash of a pulling sash or the shoji shrinking of a single draw sash or a draw sash. And it is easy to ensure watertightness and airtightness at the bottom of the frame. In other words, the watertightness and airtightness of the bottom of the mating frame located on the upper surface of the rail section are high, and the provision of the outdoor hanging pieces reduces rainfall at the lower outdoor side of the mating frame. , Without complicating the structure.
Furthermore, the provision of the outdoor hanging pieces makes it difficult for dust and dirt to accumulate on the upper surface of the rail portion, and is excellent in maintainability. In addition, there is no gap for inserting a bur or the like from the outside, so that security is improved. Is also excellent.
On the other hand, in the present invention, the outdoor-side guide groove of the outdoor-side hanging piece of the shoji is formed by the outdoor-side rising piece and the rail side surface, and the outdoor-side rising piece is used for the rail part for screen door traveling. Then, a swallowing piece is formed in the screen door lower frame along the longitudinal direction to be fitted into the outdoor-side guide groove, and the swallowing piece is swallowed in the outdoor-side guide groove together with the outdoor-side hanging piece of the shoji. It takes the form of masturbation.
As a result, the insects are less likely to enter the room through the close gap between the swallowing piece of the screen door lower frame and the outdoor hanging piece of the shoji. In addition, in this embodiment, the outdoor guide groove is a longitudinally continuous insect repelling line at the lower portion of the sash, so there is basically no need to consider the insect repelling line to the indoor side. An excellent insect repelling line can be constructed.
Furthermore, even if insects enter the outdoor guide groove, the insects need to get over the gap between the outdoor hanging piece of the shoji and the rail, which makes it difficult for the insects to enter.
[0014]
<Invention according to claim 2>
The insect repellent device for a lower frame flat sash for an external opening according to claim 1, wherein a partition member for insect repellency is provided at a portion of the vertical side frame of the screen door and a frame for combining shoji in the outdoor side guide groove.
[0015]
(Effect)
Insect-inhibiting partition members were provided in the center vertical frame of the screen door and the combination frame of the shoji in the outdoor guide groove. Therefore, insects that enter the outdoor side guide groove and enter the room in the longitudinal direction can be prevented by the insect-controlling partition member.
[0016]
<Invention according to claim 3>
An inner / outer sliding door that slides left and right along the rail portion of the lower frame, and a screen door that slides left and right provided on the outside thereof, and the entire upper surface of the lower frame including the upper surface of the rail portion is substantially flat. An outer opening lower frame flat sash formed in:
Above the lower frame hollow portion, in order from the indoor side to the outdoor side, above the hollow portion, a first rising piece, a rail section for an inner sash, a second rising piece, a rail section for a outer sash, and a 3 rising pieces, and the first to third rising pieces are formed at substantially the same height as the rail portion,
The inner sash and the outer sash, the indoor side hanging piece and the outdoor side hanging piece on the lower frame respectively,
The indoor side guide groove of the indoor side hanging piece of the inner sash is provided by the inner side surface of the rail portion indoor side of the inner sash and the first rising piece; Forming an outdoor guide groove of the outdoor-side hanging piece of the inner sash, and the indoor side surface of the indoor-side hanging piece of the outer sash by the second rail and the inner side surface of the rail portion for the outer sash. A guide groove, and the rail portion outdoor side surface for the outer sash and the third rising piece to form an outer guide groove of the outer hanging piece of the outer sash,
The third rising piece is used for a rail portion for screen door traveling,
Forming a swallowing piece along the longitudinal direction that fits in the outdoor guide groove of the shoji on the screen door lower frame,
This swallowing piece is swallowed in the outdoor guide groove of the outer sash in the proximity state together with the outdoor hanging piece of the sash,
An insect repellent device for a lower frame flat sash for external opening.
[0017]
(Effect)
A hanging piece is formed not only on the indoor side of the lower frame of the inner and outer sliding doors but also on the outdoor side in the sliding sash consisting of inner and outer sliding doors. Rainwater falling into the room is refused. In other words, the outdoor hanging pieces of the inner sash and the outer sash function as substantial drainers. Therefore, drainage can be performed with these outdoor-side hanging pieces, and watertightness and airtightness can be reliably secured between the indoor-side hanging pieces and the horizontal tight material. Specifically, drainage is performed on the outdoor hanging pieces of the inner and outer sashes, so that most of the rainwater flows into the respective outdoor guide grooves and is discharged to the outside through the hollow portion of the lower frame. It is difficult for rainwater to infiltrate the upper surface of the rail part located above the tight line by the tight material, and even if rainwater infiltrates the upper surface of the rail part, the indoor drooping pieces of inner and outer sash and the horizontal tight material Without leaking into the room, the rainwater falls into each indoor side guide groove and is discharged to the outside through the hollow portion of the lower frame. In other words, the double structure in which the draining line and the tight line are separately provided reduces the load on the tight line and increases the watertightness and airtightness.
In addition, by providing outdoor hanging pieces for inner and outer sashes to reduce the infiltration of rainwater on the upper surface of the rails, watertightness at the lower outside of the combined sashes of the inner sashes and the bottom of the sashes. It is easy to secure the airtightness and airtightness. In other words, the watertightness and airtightness of the bottom of the mating frame, which is located on the upper surface of the rail for the inner sash, is high. It is possible to reliably perform the raining of the lower part of the outdoor side of the joint frame without complicating the structure.
Furthermore, the provision of the outdoor hanging pieces on the lower frame of the inner and outer shojis makes it difficult for dust and dirt to accumulate on the upper surface of the rail portion, which is excellent in maintenance, and that a bur or the like is inserted from outside. Because there is no such gap, it is also excellent in crime prevention.
[0018]
As for the insect repellent, the same action and effect as described in the section of the action and effect of claim 1 can be obtained.
[0019]
<Invention according to claim 4>
4. The lower frame flat sash for an external opening according to claim 3, wherein a first insect repelling partition member is provided at a portion of the vertical frame on the center side of the screen door and a combined frame of the outer screen in the outdoor guide groove of the outer door. Insect repellent equipment.
[0020]
(Effect)
By providing the first insect-controlling partitioning material, the same function and effect as described in the section of the second function and effect can be obtained.
[0021]
<Invention according to claim 5>
The outer opening according to claim 3 or 4, wherein a second insect repellent partition member is provided at a portion where the outer frame of the outer sliding door and the inner frame of the inner sliding door are joined in the guide groove on the indoor side of the outer sliding door. Lower frame flat sash insect repellent device.
[0022]
(Effect)
If the insects enter the outdoor-side guide groove and enter the room in the longitudinal direction, the insects can be prevented by the second insect-preventing partition member.
[0023]
<Invention according to claim 6>
The tight material which contact | abuts the vertical frame of the opposing shoji and the vertical frame of a frame body respectively in the indoor side of the center side vertical frame of a screen door, and the outer vertical frame, and is provided in any one of Claims 1-5. Insect repellent device for lower frame flat sash for external opening.
[0024]
(Effect)
A vertical insect repelling line can be formed.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, prior to describing an embodiment of the present invention, embodiments included in the embodiment will be described in advance for better understanding.
"Description of Embodiment"
As described in Patent Document 1 described above, there are the following problems in securing watertightness and airtightness only by the hanging pieces on the indoor side of the shoji lower frame and the horizontal tight material.
[0026]
First, since the hanging pieces (sliding pieces) are formed only on the indoor side, as shown in a range surrounded by a dotted line in FIG. The rainwater that has entered enters the room from below the lower part of the shoji lower frames 1a and 2a, and the upper surface 4 of the lower frame rail portion located above the tight line by the shoji lower frame hanging pieces 1c and 2c and the horizontal tight material 76. 5, the burden on the horizontal tight material 76 is large, which is disadvantageous for watertightness.
[0027]
Secondly, since rainwater infiltrates and accumulates on the lower frame rail upper surfaces 4 and 5, the watertightness and airtightness of the lower part of the outside of the mating frame of the sliding sash 1 and the like and the bottom of the frame are reduced. It is difficult to secure.
[0028]
Third, as shown in a range surrounded by a dotted line in FIG. 22 (a), dust and dust easily accumulate on the lower frame rail upper surfaces 4 and 5, and the lower frame rail upper surfaces 4 and 4 where these are accumulated. As the sliding door 6 of the sliding door 5 moves, the rail upper surfaces 4 and 5, which are easily noticeable, are finely scratched, and from the viewpoint of beauty and the like, it is necessary to frequently perform maintenance such as repair and replacement.
[0029]
Fourth, since the hanging pieces are not formed on the outdoor side of the inner sash and the outer sash, the bottom and the lower frame of the inner sash and the outer sash lower frame 1a, 2a from the outdoor side as shown in FIG. A crowbar 7 or the like is inserted into the gaps between the upper surfaces 4 and 5 of the rails, and the inner sash and the outer sashes 1 and 2 are removed by lifting the sash, thereby facilitating entry from outside. It is dangerous.
[0030]
An embodiment for solving the above-mentioned problem is as follows.
<Embodiment 1>
Embodiment 1 has a sliding door that slides left and right through a door wheel provided on a sliding door lower frame along a rail section of the lower frame, and the entire upper surface of the lower frame including the upper surface of the rail section A substantially flat, lower frame flat sash for external opening,
Forming a hollow portion having a drain port communicating with the outside in the lower frame,
The shoji forms an indoor hanging piece and an outdoor hanging piece of the lower frame,
Above the hollow portion, the rail portion having a substantially flat upper surface, and an indoor-side rising piece and an outdoor-side rising piece having substantially the same height as the rail portion are provided side by side on the indoor side and the outdoor side of the rail. And
The indoor-side guide groove of the indoor-side hanging piece at the indoor-side rising piece and the rail part side surface, and the outdoor-side guide groove of the outdoor-side hanging piece at the outdoor-side rising piece and the rail part side surface, respectively. Forming
Interposed between the indoor side hanging piece and the indoor side rising piece so as to slidably contact a horizontal tight material,
A drain hole is provided in the outdoor-side guide groove to communicate with the outside via the hollow portion of the lower frame.
This is a lower frame flat sash for an external opening.
[0031]
(Effect)
The functions and effects of the first embodiment are described in the section of the functions and effects of claim 1.
[0032]
<Embodiment 2>
Embodiment 2 has a sliding door that slides to the left and right along a rail portion of the lower frame via a door roller provided on a lower sliding door frame, and the entire upper surface of the lower frame including the upper surface of the rail portion. Formed substantially flat, a lower frame flat sash for external opening in a pulling sash composed of inner and outer shojis,
Forming a hollow portion having a drain port communicating with the outside in the lower frame,
The inner sash and the outer sash, the indoor side hanging piece and the outdoor side hanging piece on the lower frame respectively,
When the sash lower frame is viewed from the indoor side to the outdoor side, a first rising piece, a rail for inner sash, a second rising piece, a rail for outer sash, and a third rising piece are provided above the hollow portion. And the first to third rising pieces are approximately the same height as the rail portion,
The indoor side guide groove of the indoor side hanging piece of the inner sash, the rail side indoor side surface of the inner sash, and the second rising piece with the inner side surface of the rail portion indoor side of the inner sash and the first rising piece. And forming an outdoor guide groove of the outdoor hanging piece of the inner sash,
Further, the inner side guide groove of the inner side hanging piece of the outer sash is formed by the inner side surface of the inner side rail portion for the outer sash and the second rising piece; Forming an outdoor guide groove of the outdoor hanging piece of the outer sash with the rising piece,
A horizontal tight material is interposed between the indoor hanging piece of the inner sash and the first rising piece and between the indoor hanging piece and the second rising piece of the outer sash so as to slidably contact with each other. ,
A drain hole is provided in the indoor side guide groove for the inner sash and the outer sash, and the indoor side guide groove for the outer sash, and communicates with the outside through the lower frame hollow portion.
This is a lower frame flat sash for an external opening.
[0033]
(Effect)
The functions and effects of the second embodiment are described in the section of the functions and effects of claim 2.
[0034]
<Embodiment 3>
In Embodiment 3, a vertical tight material is formed on the outdoor surface of the joining frame of the inner sliding door of the sliding sash composed of the inner and outer sliding doors so as to make the space between the outdoor surface and the inner surface of the combining frame of the outer sliding door airtight. And
A block body is provided at the lower part of the outer surface of the inner frame of the inner sliding door and at the bottom of the frame to make the space between the lower outer surface of the frame and the lower part of the inner surface of the outer frame of the outer sliding door airtight, and to call the inner sliding door. Airtight between the bottom of the frame and the top of the rail for the inner shoji,
In addition, a tight material is embedded in the guide grooves on the indoor side and the outdoor side of the rail portion, which are located at the bottom of the combination frame of the inner shoji with the pulling sash closed,
Further, a drain hole is provided in a lower frame at a position outside and close to a tight line formed by the vertical tight material, the block body and the buried tight material with the pulling sash closed. It is a lower frame flat sash for an external opening according to the first or second embodiment.
[0035]
(Effect)
A vertical tight material is used to seal the inner space between the outer frame of the inner frame and the inner surface of the outer frame of the outer frame in the sliding sash made of inner and outer sliding doors. The rainwater sprayed on the stairs is denied entry into the room, and falls along each of the stairs.
Next, rainwater that fell along each combination frame and rainwater that was sprayed on the lower part of the combination frame were exposed to the lower part of the outer part of the inner part of the combination frame of the inner sliding door and the lower part of the inner part of the combination part of the outer sliding door. Water leaking into the room can be prevented by the block body that makes the gap between them airtight. In addition, since this block body makes the space between the bottom of the combination frame of the inner shoji and the upper surface of the rail for the inner shroud airtight, it is possible to prevent rainwater from entering from the upper surface of the lower frame rail. it can.
In addition, when the pulling sash is closed, tight materials are buried in the guide grooves on the indoor side and the outdoor side of the rail portion located at the bottom of the combination frame of the inner shoji, so that rainwater from the guide grooves to the room can be obtained. Can be prevented from flowing.
Further, the tight line formed by the vertical tight material, the block body and the buried tight material not only ensures airtightness and watertightness, but also is provided on the lower frame at a position outside and close to the tight line. The drainage holes facilitate the discharge of rainwater to the outside through the hollow portion of the lower frame, thereby enhancing the effect of preventing water leakage into the room.
[0036]
<Embodiment 4>
Embodiment 4 forms a vertical tight material on the outdoor surface of the vertical frame of the fitting-and-killing portion in the one-sided sash or the draw sash to make the airtightness between the outdoor surface and the indoor surface of the combined frame of the sash. ,
A block body for providing airtightness between the lower part of the outer surface and the lower part of the indoor surface of the combination frame of the outer sash,
Further, in a state in which the sliding door in the one-sided draw sash or the draw sash is closed, a drain hole is provided in a lower frame at a position outside and close to a tight line formed by the vertical tight material and the block body. 4 is a lower frame flat sash for an external opening according to the first embodiment.
[0037]
(Effect)
A vertical tight material is used to seal the space between the outdoor surface of the vertical frame of the mating portion in the single pull sash or the draw sash and the indoor surface of the mating frame of the outer sliding door with the vertical frame and the outer sliding door. The rainwater sprayed on the stairs is denied entry into the room, and falls along each of the stairs.
[0038]
Next, the rainwater that fell along each mating frame and the rainwater sprayed on the lower part of the mating frame were exposed to the lower part of the outer surface of the vertical frame room and the lower part of the inner part of the mating frame of the shoji. Water leaking into the room can be prevented by the block body that makes the gap between them airtight.
[0039]
Further, not only does the tight line formed by the vertical tight material and the block body ensure airtightness and watertightness, but also by a drain hole provided in a lower frame at a position outside and close to the tight line, The effect of preventing rainwater from leaking into the room is enhanced by promoting the discharge of rainwater to the outside through the hollow portion of the frame.
[0040]
<Embodiment 5>
In the fifth embodiment, the rail portion forms the indoor side and the outdoor side surface with a pair of rising pieces, and the upper surface constituting member of the detachable rail portion is fitted to the indoor side and the outdoor side surface of the rail portion. The lower frame flat sash for an external opening according to any one of Embodiments 1 to 4, which is formed by performing the following steps.
[0041]
(Effect)
The lower frame flat sash, with the upper surface of the rail almost flat, prevents water from entering the room by ensuring a certain level of watertightness and airtightness. Holes should be provided to facilitate drainage outside the tight line.
However, if the drain hole is clogged with dust or the like and cannot be drained into the hollow part communicating with the outside, there is a possibility that rainwater may enter the room over the tight line.
[0042]
Therefore, it is possible to maintain the lower part of the rail part as a structure that allows the upper surface of the rail part to be removed, and by cleaning the lower part of the rail part, it is possible to prevent clogging of the drain hole and to ensure the waterproof effect. In addition, it is possible to prevent an unsanitary state due to accumulation of dust and the like.
[0043]
<Embodiment 6>
A tight material is buried in the area surrounded by the upper surface constituent members of the rail portion and the indoor side and the outdoor side surface of the rail portion, which is located at the bottom of the combination frame of the shoji with the pulling sash closed. A lower frame flat sash for an external opening according to a fifth embodiment.
[0044]
(Effect)
A tight material is buried in the area surrounded by the upper surface component of the rail portion and the indoor side and the outdoor side surface of the rail portion, which is located at the bottom portion of the combination frame of the shoji with the pulling sash closed. This prevents the rainwater that has flowed into the lower part of the rail from entering the room, thereby increasing the waterproof effect.
[0045]
"Specific embodiments"
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 4 show longitudinal and transverse cross-sectional views of one embodiment of the sash according to the present invention for a pulling sash and FIGS. 6 and 7 for a single pulling sash. As shown in FIGS. 1-4 and 6, 7, the sash forms a frame by a lower frame 10, an upper frame 70, a left vertical frame 71, and a right vertical frame 72. In this case, the inner sash 30 and the outer sash 40 are mounted, or in the case of a single-drawing sash or a draw sash, the fitted sash 60 and the outer sash 40 are mounted to constitute the sash.
[0046]
The entire upper surface of the lower frame 10 is formed substantially flat, and as shown in FIG. 9, the upper surface of the lower frame 10, the grating member 73, the wood deck 75 provided on the balcony 74, and the like are formed substantially flat from the floor in the room. be able to.
[0047]
Hereinafter, the structure of the sash according to the present invention will be described in detail by taking a pulling sash including the inner sash 30 and the outer sash 40 as an example.
[0048]
<Shoji structure>
As shown in FIGS. 1 to 4, the sash 40 is formed by a sash lower frame 41 and an upper sash 42, and a sash vertical frame 43 and a combined sash 44. Glass or the like is mounted inside. Further, a door wheel 46 is provided on the bottom 45 of the lower frame of the outer door, and the outer door 40 rotates left and right by rotating the upper surface 12a of the lower frame rail portion.
[0049]
Furthermore, the hanging pieces 47 and 48 extend to the inside of the room and the outside of the room, respectively, on the outer sash frame 41. The structure of the above-described sash screen is substantially the same for the inner sash screen 30 except for a block body 50 described later.
[0050]
Since the inner sash lower frame 36 and the outer sash lower frame 41 according to the present invention are provided with the outdoor side hanging pieces 33 and 48 in addition to the indoor side hanging pieces 32 and 47, they are indicated by dotted lines in FIG. As shown in the surrounding area, the outdoor hanging pieces 33 and 48 prevent rainwater that has fallen along the outdoor sliding door surface and the window glass from entering the room. That is, the outdoor side hanging pieces 33 and 48 function as substantial drainers.
[0051]
Therefore, most of the rainwater flows down to the lower frame outdoor side guide grooves 17 and 19 by being drained by the outdoor side hanging pieces 33 and 48, and is discharged outside through the hollow portion 21. Rain water hardly permeates into the upper surfaces 11a and 12a of the rails located above the tight line of the vehicle, and ensures the watertightness and airtightness between the indoor side hanging pieces 32 and 47 and the horizontal tight material 76 described later. Can be secured.
[0052]
In addition, by providing the outdoor side hanging pieces 33 and 48, as shown in a range surrounded by a dotted line in FIG. 26B, dust and dirt hardly accumulate on the upper surfaces 11a and 12a of the rail portions. As shown in FIG. 27B, there is no gap for inserting the bur 7 or the like from the outside as shown in FIG. 27B, and furthermore, as shown in FIG. The right vertical frame 72 is provided with a protruding piece 72a so as to eliminate a gap into which a bar or the like is inserted between the inner shoji vertical frame and the sash right vertical frame 72. Similarly, the outer sash vertical frame 43 and the sash left vertical Since there is no gap with the frame 71, the security is excellent.
[0053]
<Lower frame structure>
As shown in detail in FIG. 1 and FIG. 7A, the lower frame 10 includes a first rising piece 13 and a door wheel 31 provided on the inner sash 30 when the sash lower frame is viewed from the indoor side to the outdoor side. Are formed, a rail portion 11 for the inner sash which rotates, a second rising piece 14, a rail portion 12 for the sash which the door wheel 46 provided on the outer sash 40 rotates, and a third rising piece 15 are formed. ing.
[0054]
As shown in FIG. 1 and FIG. 7A, the indoor guide groove 16 of the indoor side hanging piece 32 of the inner sash is formed by the inner side surface 11 b of the rail portion for the inner sash and the first rising piece 13, and the inner sash The outdoor side guide groove 17 of the outdoor side hanging piece 33 of the inner sash is formed by the rail-side outdoor side surface 11c and the second rising piece 14. Note that the hatched portions in FIG. 7A indicate drainage holes, dew condensation holes, and notches, which will be described later, and FIG. 7B illustrates a partial cross section of the drainage hole 20a. ing.
[0055]
The indoor side guide groove 18 of the indoor side hanging piece 47 of the sash, the rail indoor side surface 12c for the sash and the third rising piece are formed by the rail side indoor side surface 12b for the sash and the second rising piece 14. 15 together with the outer side guide groove 19 of the outer side hanging piece 48 of the outer sash.
[0056]
In order to make the space between the indoor hanging piece 32 of the inner sash and the first rising piece 13 and the space between the indoor hanging piece 47 of the outer sash and the second rising piece 14 airtight and watertight, A tight material 76 is provided, and a part of a tight line in the lower frame 10 is formed by sliding and tight contact between the horizontal tight material 76 and the respective indoor side hanging pieces 32 and 47.
[0057]
Here, as shown in FIG. 7A, the second rising piece 14 divides a guide groove 17 which also functions as a drain groove and a guide groove 18. Since the upper surface 14a of the second rising piece 14 is a flat surface and the lateral tight material 76 for the sash is attached thereto, a substantial tight line of the sash 40 is formed. Preferably, the horizontal tight material 76 is also flush with the upper surface 14a.
[0058]
Further, drainage holes 20a for draining rainwater accumulated in the guide grooves, which also function as drainage grooves, are provided in the lower frame indoor outer guide grooves 17, 19 for the inner and outer shojis and the inner side guide grooves 18 for the outer shojis. , 20c, 20d, and 20e are formed, and the rainwater that has fallen into the drain holes 20a, 20c, 20d, and 20e flows down into a hollow portion 21 formed in the lower frame. Eventually, rainwater will be discharged to the outside through the communication with the outside. Similarly, the condensed water is discharged outside through the condensed water drain valve 20g and the drain port 22 by the dew water hole 20f.
[0059]
That is, in the sash structure according to the present invention, since the outdoor hanging pieces 33 and 48 are provided on the inner sliding door frame 36 and the outer sliding door lower frame 41, the outdoor hanging pieces 33 and 48 serve as substantial drainers. Although it functions, even if rainwater enters the upper surfaces 11a, 12a of the rails, the rainwater does not leak into the room due to the indoor side hanging pieces 33, 47 and the horizontal tight material 76, and the rainwater flows into the lower frame indoor side guide groove 16. , 18 and is discharged to the outside through the hollow portion 21. In other words, as shown in FIG. 19, the double structure in which the draining line 84 and the tight line 85 are separately provided reduces the load on the tight line 85 and increases watertightness and airtightness.
[0060]
The lower frame 10 is made of an aluminum alloy or the like, and the lower frame itself is formed by an extruded member. As a configuration of the lower frame 10, as shown in FIG. 7A, when the upper surfaces 11a and 12b of the lower frame rail portion are formed separately from the lower frame member 23 forming the base of the lower frame, that is, the rail portion The upper surface constituting members 24 and 25 of the lower frame rail portion from which the upper surfaces 11a and 12a of the lower frame member can be detached are manufactured separately. It is conceivable to fit the rising pieces 12e and 12f. If the upper surface constituting members 24 and 25 are separate members, as shown in FIG. 11, not only water drain holes 20b and 20d and dew water holes 20f can be easily provided in the lower grooves 11d and 12d of the rail portion. It is possible to clean dust and the like clogged in the drain holes 20b and 20d and the dew condensation water hole 20f to prevent water leakage into the room due to clogging. Further, an unsanitary state due to accumulation of trash and the like can be prevented.
[0061]
As shown in FIGS. 10A and 10B, when the lower frame is integrally formed as the lower frame members 23a and 23b, that is, the hollow portion 21, the rail portions 11 and 12, and the first to third rising portions. It is also conceivable to integrally mold the pieces 12, 13, 14 and the like. Here, for example, as shown in FIG. 10B, in a lower frame member 23b in which a space corresponding to the lower grooves 11d and 12d of the rail portion is integrated with the hollow portion 21, the lower grooves 11d and 11d of these rail portions are used. Since there is no 12d, maintenance such as cleaning, which is necessary when there are lower grooves 11d and 12d of the rail portion, is unnecessary.
[0062]
FIGS. 11A and 11B are a plan view and a cross-sectional view of the lower frame in a state where the upper surface components 24 and 25 of the lower frame rail are removed. The lower frame 10 is provided with drainage holes 20a, 20b, 20c, 20d, and 20e, and the drainage holes 20a, 20b, 20c, 20d, and 20e are formed in hollow portions 21 formed in the lower frame. The inner frame guides 17 and 19 for the inner sash and outer sash and the inner side guide grooves 18 for the outer sash and the lower grooves 11d and 12d of the lower frame rails for the inner sash and the outer sash. The rainwater flows down into the hollow portion 21. Similarly, the condensed water flows into the hollow portion 21 through the condensed water drain valve 20g with a check valve through the dew water hole 20f. A notch 26 is also provided for communicating between the guide groove and the lower groove of the rail.
[0063]
Here, the drain holes 20b and 20d provided in the rail grooves 11d and 12d are provided with the rail portions for the outer sliding door even if there is rainwater which gets over the upper surfaces 11a and 12a of the rail portions and enters the guide grooves 16 and 18. Of the indoor side rising piece 12e and the notch 26 of the indoor rising piece 11e of the rail for the inner sash, the water is discharged from the drain holes 20b and 20d, and is sprayed from the hollow part 21 by wind pressure or the like (blowing up). State) is covered by the upper surface of the rail portion, so that the horizontal tight member 76 is hardly splashed.
[0064]
A drain port 22 communicating with the outside is provided in the hollow portion 21 of the lower frame, and the lower frame room outer guide grooves 17 and 19 for the inner and outer shojis and the indoor side guide grooves 18 and the inner guide grooves 18 for the outer shojis are provided. Rainwater or dewdrop water 20f, which has flowed down from the lower grooves 11d, 12d of the lower frame rail portion for the shoji and outer shoji through the drain holes 20a, 20b, 20c, 20d, 20e, passes through the dew-water drain valve 20g from the condensate water hole 20f. The condensed water that has fallen is discharged from the drain port 22. In addition, a lid 22a is attached to the drain port 22 in order to prevent invasion of wind, rainwater, insects, and the like from the outside, and functions as a check valve.
[0065]
<Air-tight and water-tight structure of the combination frame>
Between the indoor surface 34a of the inner frame and the inner surface 44a of the outer frame, the inner frame and the outer frame are closed, and the inner frame and the outer frame of the outer frame are closed. Are provided with smoke returns 34b and 44b so as to engage with each other and withstand wind pressure from the outside. Among them, a smoke return 34b provided on the outdoor surface 34a of the inner frame of the inner sliding door is provided with the outer surface 34a of the inner sliding door of the inner sliding door and the indoor surface of the outer sliding door of the outer sliding door. A vertical tight member 78 for airtightness with the surface 44a is provided. This vertical tight member 78 secures airtightness and watertightness between the outdoor surface 34a of the inner frame of the sliding door and the indoor surface 44a of the outer frame of the sliding door. This prevents rainwater sprayed on the combination frame 34 and the shoji from entering the room. At the lower end, the vertical tight material 78 is in close contact with the side surface of the below-combination frame lower airtight block 51 as shown in FIG. 12 to form a vertical tight line. In addition, this vertical tight member 78 may be provided on the indoor surface 44a of the staircase for the stash.
[0066]
An airtight block body 50 is provided at the lower part of the outdoor surface 34a and the bottom part 34c of the stile for the inner shoji. The airtight block body 50 makes the space between the lower portion of the outdoor surface 34a of the inner frame of the inner sliding door and the lower portion of the inner surface 44a of the outer frame of the outer sliding door airtight and watertight, and the bottom 34c of the inner sliding door frame. An airtight and watertight state is provided between the upper surface 14a of the second rising piece 14 and the upper surface 11a of the lower frame rail portion for the inner sash. Here, a horizontal tight material 76 is attached to the second rising piece 14, and the upper surface 14a of the second rising piece 14 and the horizontal tight material 76 form substantially the same plane.・ The airtightness is assured.
[0067]
As shown in FIGS. 12 and 13, the hermetic block body 50 is composed of a lower hermetic block 51, a lower hermetic block 52, and a fin 53 for a hermetic block.
[0068]
The lower frame 51 of the combination frame is attached to the lower part of the outdoor surface 34a of the combination frame of the inner shoji by screws or the like so as to be adjustable in height, and is in close contact with the lower block 52 of the combination frame. Of these, the fin portion 51a shown in FIG. 14 is made of an elastic material such as soft PVC containing ABS. A plurality of airtight / watertight spaces are formed by the plurality of fins 51a of the lower sealing block 51, and a lower portion of the outer surface 34a of the inner stile frame and a lower portion of the inner surface 44a of the outer shoji frame are formed. A high airtightness and high watertightness can be ensured between the doors, and rainwater that has fallen along the mating frame or rainwater blown below the mating frame can be prevented from entering the room.
[0069]
The joint frame bottom airtight block 52 is fitted to the joint frame bottom 34c of the shoji. As shown in FIG. 15, an indoor side hanging piece 52a and an outdoor side hanging piece 52b are integrally formed in the mating frame bottom airtight block 52, and the inner sash is cut off at the inner staple combining frame bottom 34c. The indoor side hanging pieces 32 and the outdoor side hanging pieces 33 of the lower frame are substantially extended. It is not always necessary to provide the indoor hanging piece 52a and the outdoor hanging piece 52b of the combined frame bottom airtight block. In this case, the indoor hanging piece 32 and the outdoor hanging piece 33 of the lower frame of the inner sash are extended. I just need to be there.
[0070]
A fin 53 for a bottom airtight block is fitted or adhered to the bottom of the bottom frame of the combination frame. This is a place where the bottom 52c is fitted or adhered as shown in FIG. The fin 53 for the bottom airtight block shown in FIG. 16 is made of an elastic body such as a soft PVC containing ABS, and is brought into close contact with the upper surface 11a of the rail for the inner shoji, thereby forming the inner bottom shroud 34c of the inner shoji. Since the space between the upper surface 11a for the sliding door and the upper surface 11a is made airtight, it is possible to prevent rainwater from entering from the upper surface 11a of the lower rail portion. As shown in FIG. 17, the fin 54a may be formed integrally with the sealing frame bottom airtight block 54 without forming the fin 54a as a separate member.
[0071]
In addition, even if these mating frame bottom airtight blocks 51, the mating frame bottom airtight blocks 52 and 54, the bottom airtight block fins 53, etc. are provided on the lower part of the indoor surface 44a of the mating frame of the sash and the frame bottom 44c. Good.
[0072]
As shown in FIG. 18, in addition to an airtight block body 50 composed of a lower airtight block 51 of a mating frame, a lower airtight block 52 of a mating frame, and a fin 53 for a lower airtight block, in order to further enhance the waterproof effect, a lower airtight block of the merging frame is provided. The auxiliary block 55 may be attached to the lower part of the sash longitudinal direction surface 34d of the joining frame of the inner shoji with screws or the like. The plate member 55a of the lower airtight auxiliary block 55 of the mating frame is made of an elastic body such as soft PVC containing ABS, and the plate member 55a is an end of the lower portion of the indoor surface 44a of the mating frame of the sash. The upper surface 14a of the lower frame second rising piece 14, the lower frame room outer guide groove 16 for the inner sash, and the upper surface 11a of the inner sash rail, and the guide groove when rainwater enters the room. Since the water is stopped by urging the discharge at 17, 18, the waterproof effect can be further enhanced.
[0073]
Also, as shown in FIG. 11, the guide grooves 16, 17 on the indoor side and the outdoor side of the lower frame rail portion for the inner sash, which are located at the bottom 34c of the inner frame of the sash with the pulling sash closed. , A grooved tight block 79 is embedded. The grooved tight block 79 prevents the rainwater flowing into the guide grooves 16 and 17 from flowing into the room, and discharges the rainwater to the drain hole 20a.
[0074]
Further, when the upper surface 11a of the lower frame rail portion for the inner sash is formed as a separate member from the lower frame member 23b constituting the base of the lower frame, that is, the upper surface 11a of the lower frame rail portion for the inner sash is removable. When the upper surface component 24 is formed as a separate member, the upper surface component 24 of the rail portion and the rising piece 11e of the rail portion, which are located at the bottom 34c of the combination frame of the shoji with the pulling sash closed. A grooved tight block 80 is embedded in a range surrounded by 11f (the lower groove 11d of the lower frame rail portion for the inner sash). In the same manner as described above, the flow of the rainwater flowing into the lower groove 11d of the rail portion into the room is blocked by the tight block 80 with the groove, and the rainwater is discharged to the drain holes 20a and 20d.
[0075]
As shown in FIG. 11, the drain hole 20a is provided at a position outside and close to the mating frame tight line 85c, and the lower part of the rail portion lower groove 11d, the bottoms of the guide grooves 17, 18 and the rail for the inner shoji are provided. The opening 11 f and the second rising piece 14 are cut out and opened.
[0076]
Here, the reason why the second rising piece 14 is cut off outside the mating frame tight line 85c and the continuity of the upper surface 14a is interrupted is that the rainwater that has fallen on the upper surface 14a is the second rising piece 14 as it is. This is to prevent the water from traveling along the upper surface 14a and invading the indoor side, to improve the drainage outside the combined frame tight line 85c, and to reduce the burden on the combined frame tight line 85c.
[0077]
<Draining line and tight line>
In the sash structure according to the present invention, the inner sash 30 and the outer sash 40 are provided with outdoor hanging pieces 33, 48 to reduce the infiltration of rainwater into the upper surfaces 11a, 12a of the lower frame rails, so that the lower frame as a whole is watertight. Improves sex and airtightness. That is, as shown in FIG. 19A, the drainage line 84 by the outdoor-side hanging pieces 33 and 48 is provided on the inner sash 30 and the outer sash 40, and the indoor-side hanging pieces 32, of the inner and outer sashes described above. The vertical tight member 78, the airtight block 50, the grooved tight blocks 79, 80, and the auxiliary airtight auxiliary block 55 at the bottom of the combined frame are added when the 47 and the horizontal tight member 76 are in close contact with each other, and the vertical frame 78, the airtight block 50 and the grooved tight blocks 79 and 80 are added. The dual structure in which the inner tight line 85a, the inner tight line 85b, the inner tight line 85b, and the lower frame tight line 85 composed of the combined frame tight line 85c are separately provided reduces the burden on the tight line 85. Increases waterproofness.
[0078]
Also, by providing the outdoor hanging pieces 33 and 48 on the inner sash 30 and the outer sash 40, the watertightness and airtightness of the lower part of the outer side 34a of the mating frame of the inner sash 30 of the pulling sash and the bottom 34c of the frame are improved. It is easy to secure the sex. That is, the watertightness and airtightness of the bottom portion 34c of the combination frame located on the upper surface 11a of the rail portion are high.
[0079]
Furthermore, by providing the outdoor side hanging pieces 33 and 48 on the inner sash 30 and the outer sash 40, the rain due to the airtight block 50, the grooved tight blocks 79 and 80, and the drain holes 20a at the lower part of the outdoor side 34a of the combination frame. This ensures that the closing can be performed without complicating the structure.
[0080]
On the other hand, as a matter of course, the sash according to the present invention is provided with a vertical tight material 81 in the left and right sash vertical frames 71 and 72 as shown in FIGS. Thus, the inner surface of the vertical frame 43 of the outer sash and the inner surface of the vertical frame 35 of the inner sash are closely contacted with the respective vertical tight members 81 to form tight lines in the sash height direction. It is substantially integrated with the line 85 to prevent water leakage into the room.
[0081]
As another embodiment of the present invention, application to an openable external opening such as a one-sided draw sash or a draw sash can be considered. The major difference between these sashes and the pulling sash is that a fitting / killing portion 60 is provided instead of the inner sash 30. Therefore, as a difference in the sash structure, as shown in FIG. 7, the rail portion 11 for the inner sash, which was necessary in the case of the pulling sash, is eliminated, and a waterproof measure for this portion becomes unnecessary.
[0082]
<Grating equipment>
The grating device according to the present invention has been described briefly with reference to FIG. 9, but details are shown in FIGS. 17 to 21. FIGS. 20 and 21 show examples of one-sided sliding doors. However, it should be noted that the present invention can be applied to a sliding sash made of inner and outer sliding doors in advance (FIG. 9 shows a sliding door made of inner and outer sliding doors). An example in which a grating device is provided on the difference sash is shown.)
[0083]
According to the present invention, as shown in FIG. 9, the lower frame flat sash for external opening having the above-described structure, the outdoor deck 75, and the grating member 73 closing the space therebetween are arranged substantially flat. Thus, a grating device is configured.
[0084]
As shown in FIGS. 1 and 20, a rail portion (third rising piece) 15 for running the screen door 82 is raised from the lower frame 10. That is, this is an example in which the third rising piece 15 is used as a rail portion for running the screen door 82.
[0085]
As shown in FIG. 1 and FIG. 20, a hook piece 15A is formed on the rail 15 so as to protrude outside the upper part of the rail 15 so that the door roller 82a of the screen door 82 can run. The receiving groove 15B is formed continuously in the longitudinal direction.
[0086]
On the other hand, as shown in FIG. 23, a plurality of, in this embodiment, three receiving support members 90 projecting to the outside of the room at the middle in the longitudinal direction of the lower frame 10 are disposed (FIG. Only the receiving support member 90 located in the section is shown).
[0087]
The receiving support member 20 is fixed to the lower frame 10 in a state where its indoor side end surface is in contact with the outdoor surface of the lower frame 10 and the upper indoor side of the receiving support member 20 is engaged with the engagement receiving groove 15B. The member 73 is disposed over a plurality of receiving and supporting members 90, 90...
[0088]
As shown in FIGS. 23 and 24, specific examples of the receiving support member 90 include adjacent receiving supporting plate portions 90A, 90A protruding to the outdoor side, connecting portions 90B connecting these outdoor sides, and each receiving portion. On the indoor side of the support plate portions 90A, 90A, fixed seat portions 90C, 90C along the longitudinal direction of the lower frame 10 are integrated.
[0089]
The fixed seats 90C, 90C are formed below the receiving support plates 90A, 90A, and, as shown in FIGS. 20 and 24, the interior surfaces of the fixed seats 90C, 90C are connected to the respective receiving support plates. On the other hand, a step portion 10a is formed on the outdoor surface of the lower frame 10 so that the upper side of the lower frame 10 projects outward from the lower side.
[0090]
Then, the indoor upper portions 90a, 90a of the respective receiving support plate portions 90A, 90A are respectively engaged with the engagement receiving grooves 15B, and the indoor side end surfaces of the respective receiving support plate portions 90A, 90A are formed on the outdoor surface of the lower frame 10, and Specifically, it is in contact from the step 10 a to the rail 15. In this state, the fixed seat portions 90C, 90C are brought into contact with the outdoor surface of the lower frame 10 in a state of being abutted on the shoulder of the step portion 10a of the lower frame 10, and as a fixing tool, as a specific example, It is fixed by fixing screws 91, 91. As shown in FIG. 20, below the step portion 10a, a receiving projection 10b is formed on the lower frame 10 so as to protrude outward.
[0091]
On the other hand, the grating member 73 is made of, for example, stainless steel, is formed in a cross-sectional groove shape, and has a large number of drainage holes formed at the center thereof at intervals in the longitudinal direction. , 90A, and are straddled over the plurality of receiving support members 90, 90, with the outdoor piece 73B substantially abutting against the outdoor surface of the receiving support plate portions 90A, 90A. It is arranged. Since the receiving support member 90 is also made of metal with respect to the grating member 73, as shown in FIG. 23, the receiving support member 90 is provided on the upper surface of the receiving support member 90, more specifically, on the upper surface of each of the receiving support plate portions 90A, 90A. It rides via rubber or plastic material 92,92.
[0092]
In the grating device configured as described above, the upper portion of the receiving support member 90 on the indoor side is engaged with the downwardly engaging receiving groove 15 </ b> B on the outer side of the upper portion of the rail portion 15, and the indoor end surface of the receiving support member 90 is formed. Abuts on the outdoor surface of the lower frame 10, and is fixed to the lower frame 10 in a state of being placed on the receiving protrusion 10 b. Accordingly, the counterclockwise rotational moment of the receiving support member 90 caused by the load applied via the grating member 73 in the counterclockwise direction with reference to FIGS. The end surface can be supported by a strut contacting the outdoor surface of the lower frame 10. Therefore, the stability with respect to the load is much better than that with the screw.
[0093]
As a result, the fixing portions by the screws 91, 91 do not need to be screwed up and down as in Patent Document 1, and only the lower portion of the receiving support member 90 is sufficient. In the embodiment, two fixing portions are sufficient. Therefore, the number of construction steps is reduced accordingly. Moreover, the receiving support member 90 can be positioned vertically by engaging the upper portion 90a on the indoor side with the engagement receiving groove 15B, so that the positioning can be performed easily and accurately, and the lower frame The flat sash and the deck on the outdoor side and the grating member can be reliably flattened. Furthermore, at the start of mounting of the receiving support member 90, the upper portion 90a on the indoor side of the receiving support member 90 is engaged with the engagement receiving groove 15B, and the lower portion of the receiving support member 90 is placed on the receiving piece 10b. As a result, since the receiving support member 90 can be temporarily held on the lower frame 10 without continuing the pressing by hand, the operation of fixing the screws 91 of the receiving support member 90 can be easily performed.
[0094]
<Insect repellent device>
As shown in FIGS. 1 to 4, the screen door 82 is provided with an insect net in a frame surrounded by an upper frame, a right frame 82A, a left frame 82B, and a lower frame 82C, as shown in FIG. In the lower part of the lower frame 82C, there is formed a swallowing piece 82c along the longitudinal direction that fits into the outdoor guide groove 19.
[0095]
The swallowing piece 82c is swallowed in the outdoor side guide groove 19 together with the outdoor side hanging piece 48 of the outer sash 40 in a close state. Here, the interval in the “proximity state” can be appropriately determined according to a desired insect repellent effect, but is usually preferably 5 mm or less (the “proximity state” is not an interval of 10 mm or more where insects easily enter. It is a phrase to mean that.)
[0096]
On the other hand, a first insect repellent partition member 92 is provided in the outside vertical guide groove 19 of the outer sash, at the central vertical frame 82A of the screen door 82 and the combining frame 44 of the outer sash 40.
[0097]
As a form of the first insect-controlling partitioning material 92, for example, as shown in FIG. 5, fins 92a, 92a... Spaced from the base protrude upward, and are made of a soft material such as vinyl chloride resin. Can be formed from The fins 92a, 92a,... Of the first insect repellent partition member 92 are disposed such that the lower ends of the hanging pieces 48 and / or the swallowing pieces 82c are in close proximity or sliding contact.
[0098]
Further, a second insect repelling partition member 93 is provided in the inside of the indoor side guide groove 18 of the outer sash 40 at the portion where the sash 44 of the outer sash 40 and the sash 44 of the inner sash 30 are joined. . As a shape of the second insect-controlling partition member 93, a shape similar to that of the first insect-controlling partition member 92 can be adopted as an alternative in FIG.
[0099]
2 and FIG. 3 showing the use state of the screen door, the vertical position of the shoji 40 on the indoor side of the central vertical frame (right frame 82A) and the external vertical frame (left frame 82B) of the screen door 82, respectively. The tight members 82b, 82b... Abutting on the frames 43, 44 and the vertical frame 71 of the frame body are provided to form a vertical insect repelling line.
[0100]
FIG. 4 illustrates a temporary screen door use state. Insect-proof blocks close to the rail portion 12 are arranged at the lower ends of the left and right vertical stiles of the sash 40 to prevent insects.
[0101]
In addition, the insect blocking from between the lower frame 82C of the screen door 82 and the lower frame of the sash 40 can be achieved by the closing material 94 shown in FIG. In addition, an appropriate member may be provided between the upper frame and the upper part of the screen door 82 to prevent insects.
[0102]
Of course, the same insect repellent structure can be adopted in the case of the draw sash shown in FIGS. 6 and 7.
[0103]
The advantages of the above insect repellent device are as described in the above-mentioned section of the operation and effect.
[0104]
【The invention's effect】
As described above, according to the insect repellent device of the lower frame flat sash for external openings according to the present invention, while ensuring good running performance of the screen door, while maintaining the viewpoint of enhancing watertightness and airtightness, excellent insect repellent. Demonstrate performance.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a sash lower frame structure in the case of a pulling sash according to the present invention.
FIG. 2 shows a cross-sectional view of a sash structure according to the invention in the case of a pulling sash.
FIG. 3 shows a cross-sectional view of a screen door in use.
FIG. 4 is a cross-sectional view showing another position state of the screen door.
FIG. 5 is a perspective view of the insect-control partition member 92.
FIG. 6 shows a longitudinal section through a sash structure according to the invention in the case of a draw sash.
FIG. 7 shows a cross-sectional view of a sash structure for a draw sash according to the invention.
FIG. 8 is a partial enlarged view of a vertical section of the sash lower frame structure in the case of a pulling sash according to the present invention.
FIG. 9 is a longitudinal sectional view of an apartment or the like employing a sliding sash according to the present invention, from indoors to outdoor balconies.
FIG. 10 is a partial enlarged view of a longitudinal section of a sash lower frame structure of another embodiment in the case of a pulling sash according to the present invention.
FIG. 11 shows a plan view and a cross-sectional view of a drain hole, a drainer, and a tight material of a sash lower frame structure in the case of a pulling sash according to the present invention.
FIG. 12 shows a state in which the airtight block body is attached to an inner frame of a shoji and looked up from below.
FIG. 13 shows a state in which an airtight block is attached to a combination frame of a shoji and viewed from the outdoor side.
FIG. 14 shows a projection view, a front view, and a side view of the airtight block under the combination frame.
FIG. 15 shows a front view, a side sectional view, and a bottom view of an airtight block at the bottom of a combined frame.
FIG. 16 shows a front view, a front sectional view, and a bottom view of a fin for a bottom airtight block.
FIG. 17 shows a front view and a projection view of another embodiment of the sealing block bottom airtight block.
FIG. 18 shows a projection view and a front view of the airtight auxiliary block under the combination frame.
FIG. 19 shows a draining line, a tight line, and a lower frame sectional view of the lower frame.
FIG. 20 is a longitudinal sectional view of a sash structure according to the present invention in the case of a draw sash.
FIG. 21 shows a cross-sectional view of a sash structure for a draw sash according to the present invention.
FIG. 22 is a perspective view showing a mounting state of the grating.
FIG. 23 is a perspective view of a mounting state of a receiving support member.
FIG. 24 is a plan view of a receiving support member.
FIG. 25 is a drawing for comparing waterproofness of a conventional sash lower frame structure (b) and a sash lower frame structure (a) according to the present invention.
FIG. 26 is a drawing comparing the sash lower frame structure (b), which is a conventional example, with the sash lower frame structure (a) of the present invention in terms of maintainability.
FIG. 27 is a drawing for comparing the security of the conventional sash lower frame structure (b) with the sash lower frame structure (a) according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Conventional inner shoji, 1a ... Conventional inner shoji lower frame, 1c ... Dropping piece of the conventional inner shoji lower frame, 2 ... Conventional outer shoji, 2a ... Conventional outer shoji lower frame, 2c ... Conventional The hanging piece of the lower frame of the inner sash frame, 3 ... window glass, 4 ... the upper surface of the lower frame rail portion for the conventional sash, 5 ... the upper surface of the lower frame rail portion for the outer sash of the conventional example, 6 ... door wheel, 7 ... bar Reference numeral 10: Lower frame, 11: Lower frame rail for inner sash, 11a: Upper surface of lower frame rail for inner sash, 11b: Lower frame rail inner side surface for inner sash, 11c: Lower frame for inner sash Rail part room outer side surface, 11d: lower groove of lower frame rail part for inner sash, 11e: lower frame rail part room inner rising piece for inner sash, 11f: lower frame rail part outer rising piece for inner sash, 12 ... outer Lower frame rail portion for sash, 12a: Upper surface of lower frame rail portion for outer sash, 12b: Lower frame rail portion for outer sash Inside side surface, 12c ... Outer side surface of the lower frame rail portion for the outer sash, 12d ... Lower groove of the lower frame rail portion for the outer sash, 12e ... Inner side rising portion of the lower frame rail portion for the outer sash, 12f ... Lower frame rail part outdoor side rising piece, 13 ... first rising piece, 14 ... second rising piece, 15 ... third rising piece (rail part for screen door traveling), 16 ... Lower frame indoor side for inner sash Guide groove, 17: Lower frame chamber outer guide groove for inner sash, 18: Lower frame chamber inner guide groove for outer sash, 19: Lower frame chamber outer guide groove for outer sash, 20a, 20b, 20c, 20d, 20e: drain hole, 21: hollow portion of lower frame, 22: drain port, 22a: drain lid, 23, 23a, 23b: lower frame member, 24: lower frame rail top surface component for inner sash, 25: outer Upper frame rail bottom member for Shoji, 26 ... Notch , 30 ... inner shoji, 31 ... inner shoji sliding door, 32 ... inner shoji indoor side hanging piece, 33 ... inner shoji room outside hanging piece, 34 ... inner shoji combining frame, 34a ... inner shoji combining frame room outer surface, 34b ... Inner shoji smoke return, 34c: bottom of inner shoji combination frame, 34d: lower part of sash longitudinal side of inner shoji combination frame, 35 ... inner shoji vertical frame, 36 ... inner shoji lower frame, 40 ... outer shoji, 41 ... outer Lower frame for sliding doors, 43: vertical frame for outer sliding doors, 44: outer frame for combining outer sliding doors, 44a: outer surface of the outer frame for combining outer sliding doors, 44b ... Frame bottom part, 46 ... door sliding door, 50 ... airtight block, 51 ... airtight block at the bottom of the combined frame, 51a ... fin part, 52 ... airtight block at the bottom of the combined frame, 52a ... indoor side hanging piece, 52b ... outdoor Hanging piece, 52c ... Bottom, 53 ... fin for bottom airtight block, 53a ... fin part, 54 ... sealing frame bottom airtight block (with fin), 54a ... fin part, 55 ... assembly frame lower auxiliary block, 55a ... plate member, 60 ... , 70: sash upper frame, 71: sash left vertical frame, 72: sash right vertical frame, 72a: protrusion, 73: grating, 74: balcony, 76: horizontal tight material, 78, 81: vertical tight material, 79, 80: embedded tight material, 82: screen door, 83: grating, 84: draining line, 85: tight line, 92: first insect repellent partition, 93: insect repellent partition.

Claims

It has a sliding door that slides left and right along the rail portion of the lower frame, and a screen door that slides left and right provided outside thereof, and makes the entire upper surface of the lower frame substantially flat including the upper surface of the rail portion. A lower frame flat sash for the formed external opening, comprising:
Above the lower frame, the rail section having a substantially flat upper surface, and an indoor-side rising piece and an outdoor-side rising piece having substantially the same height as the rail section are arranged on the indoor side and the outdoor side of the rail, respectively. Set up
Form the indoor side hanging piece and outdoor side hanging piece of the lower frame on the shoji,
The indoor-side guide groove of the indoor-side hanging piece at the indoor-side rising piece and the rail part side surface, and the outdoor-side guide groove of the outdoor-side hanging piece at the outdoor-side rising piece and the rail part side surface, respectively. Forming
Using the outdoor rising piece for a rail portion for screen door traveling,
Forming a swallowing piece along the longitudinal direction that fits in the outdoor guide groove in the screen door lower frame,
This swallowing piece is swallowed in close proximity to the outdoor side guide groove together with the outdoor side hanging piece of the shoji,
An insect repellent device for a lower frame flat sash for external opening.

The insect repellent device for a lower frame flat sash for an external opening according to claim 1, wherein a partition member for insect repellency is provided at a portion of the vertical side frame of the screen door and a frame for combining shoji in the outdoor side guide groove.

An inner / outer sliding door that slides left and right along the rail portion of the lower frame, and a screen door that slides left and right provided on the outside thereof, and the entire upper surface of the lower frame including the upper surface of the rail portion is substantially flat. An outer opening lower frame flat sash formed in:
Above the lower frame hollow portion, in order from the indoor side to the outdoor side, above the hollow portion, a first rising piece, a rail section for an inner sash, a second rising piece, a rail section for a outer sash, and a 3 rising pieces, and the first to third rising pieces are formed at substantially the same height as the rail portion,
The inner sash and the outer sash, the indoor side hanging piece and the outdoor side hanging piece on the lower frame respectively,
The indoor side guide groove of the indoor side hanging piece of the inner sash is provided by the inner side surface of the rail portion indoor side of the inner sash and the first rising piece; Forming an outdoor guide groove of the outdoor-side hanging piece of the inner sash, and the indoor side surface of the indoor-side hanging piece of the outer sash by the second rail and the inner side surface of the rail portion for the outer sash. A guide groove, and the rail portion outdoor side surface for the outer sash and the third rising piece to form an outer guide groove of the outer hanging piece of the outer sash,
The third rising piece is used for a rail portion for screen door traveling,
Forming a swallowing piece along the longitudinal direction that fits in the outdoor guide groove of the shoji on the screen door lower frame,
This swallowing piece is swallowed in the outdoor guide groove of the outer sash in the proximity state together with the outdoor hanging piece of the sash,
An insect repellent device for a lower frame flat sash for external opening.

4. The lower frame flat sash for an external opening according to claim 3, wherein a first insect repellent partition member is provided at a portion of the center side vertical frame of the screen door and a combination frame of the outer door in the outdoor guide groove of the outer door. Insect repellent equipment.

The external opening according to claim 3 or 4, wherein a second insect repellent partition member is provided in a portion where the outer frame and the inner frame are joined in the guide groove on the indoor side of the outer window. Insect repellent device for lower frame flat sash.

The tight material which contact | abuts the vertical frame of the opposing shoji and the vertical frame of a frame body respectively in the indoor side of the center side vertical frame of a screen door, and the outer vertical frame, and is provided in any one of Claims 1-5. Insect repellent device for lower frame flat sash for external opening.