JP2004360309A

JP2004360309A - Opening device

Info

Publication number: JP2004360309A
Application number: JP2003160450A
Authority: JP
Inventors: Tomihiro Yamashita; 富広山下
Original assignee: Tostem Corp
Current assignee: Tostem Corp
Priority date: 2003-06-05
Filing date: 2003-06-05
Publication date: 2004-12-24

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening device which can secure mothproofness by a simple structure and which dispenses with mothproof packing at the lower end of a stile of an outer sash. <P>SOLUTION: This opening device is equipped with: a frame 2 which is composed of a head 2a, a sill 2b, and left and right jambs 2c and 2d; a sliding screen 4 which is provided at least on an outdoor side in the frame 2 in an horizontally openable/closable manner; and a wire screen 5 which is provided on the outdoor side in the frame 2 in an horizontally openable/closable manner. A top surface 12 of the sill 2b is formed as an almost flat surface; a suspended piece 18 is provided in the indoor-side lower part of the sliding screen 4; a guide groove 21 for guiding the suspended piece 18 is formed in the top surface 12 of the sill 2b; a shallow groove part 63 is provided in the top surface 12 of the sill below the outdoor-side lower part of the sliding door 4; and a mothproof suspended piece 64 is provided in the outdoor-side lower part of the sliding screen 4 in such a manner as to get closer to the groove part 63. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、開口部装置に係り、特に下枠の上面がバリアフリーの略平坦面に形成されていると共に網戸を備えている開口部装置に関する。
【０００２】
【従来の技術】
開口部装置としては、例えば図１４の（ａ），（ｂ）に示すように、建築物の屋外開口部に設けられる上下枠２ａ，２ｂ及び左右の縦枠２ｃ，２ｄからなる枠２と、該枠２内の前記下枠２ａ上に戸車を介して左右方向にスライド開閉可能に設けられた引違い障子３，４とを備え、前記下枠２ｂの上面を略平坦面に形成し、内外の障子３，４の室内側下部に垂下片１７，１８を設け、前記下枠２ｂの上面に前記垂下片１７，１８を案内する案内溝２０，２１を設けたバリアフリー構造の下枠フラットサッシ（下枠上面に突出したレールが無いのでノンレールサッシともいう）が知られている（例えば、特開２００２−２２７５３７号公報参照）。
【０００３】
一方、下枠フラットサッシとしては、内障子の室外側下部と外障子の室内側下部に垂下片を設け、下枠の上面に各垂下片を案内する案内溝を設けたものが本出願人により提案されている。
【０００４】
【特許文献１】
特開２００２−２２７５３７号公報
【０００５】
【発明が解決しようとする課題】
ところで、前記何れのサッシにおいても、枠２内の室外側に左右方向にスライド開閉可能に網戸５が設けられている。しかしながら、前記サッシの場合、前記垂下片１８が虫の侵入を遮断する防虫ラインになっているものの、その垂下片１８が外障子４の室内側にあるため、この垂下片１８と網戸５との間における下枠２ｂの上面と外障子４の下部との隙間から虫が侵入する恐れがある。このため、前記隙間からの虫の侵入を防止すべく前記網戸縦框の防虫ラインと外障子４の垂下片１８の防虫ラインとを繋ぐために、外障子４の縦框下端部に防虫パッキン７０，７０を設ける必要があった。
【０００６】
本発明は、前記事情を考慮してなされたもので、簡単な構造で防虫性を確保でき、外障子縦框下端部の防虫パッキンが不要な開口部装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、上下枠及び左右の縦枠からなる枠と、該枠内の少なくとも室外側に左右方向に開閉可能に設けられた障子と、枠内の室外側に左右方向に開閉可能に設けられた網戸とを備え、前記下枠の上面を略平坦面に形成し、前記障子の室内側下部に垂下片を設け、下枠の上面に垂下片を案内する案内溝を形成し、前記障子の室外側下部の下方の下枠上面に浅い溝部を設けると共に、前記障子の室外側下部に防虫用垂下片を前記溝部に近付けて設けたことを特徴とする。
【０００８】
【発明の実施の形態】
以下に、本発明の実施の形態を添付図面に基いて詳述する。図１は本発明の実施の形態の開口部装置を概略的に示す室内側正面図、図２は図１の横断面図、図３は図１の縦断面図である。図４は気密構造を説明するための概略的斜視図、図５及び図６は召内框下部の気密構造を説明するための概略的斜視図である。図７は開口部装置の要部縦断面図、図８は同要部横断面図である。図９は排水弁の一例を示す図で、（ａ）は排水時の断面図、（ｂ）は逆流防止時の断面図である。
【０００９】
図１〜図３，図７において、１は開口部装置である下枠フラットサッシ（ノンレールサッシ）で、このサッシ１は、建築物の屋外開口部に取付けられる上下枠（上枠と下枠）２ａ，２ｂ及び左右の縦枠２ｃ，２ｄからなる枠２と、該枠２内の少なくとも室外側、本実施例では室外側及び室内側に左右方向にスライド開閉可能に取付けられた障子（本実施例では引違い障子）３，４とを備えている。枠２の室外側には網戸５が左右方向にスライド開閉可能に取付けられている。上枠２ａ、下枠２ｂ及び左右の縦枠２ｃ，２ｄは、例えばアルミ押出形材からなっている。
【００１０】
前記内障子３は、例えばアルミ押出形材からなる上下框（上框と下框）６ａ，６ｂ及び左右の縦框（召し合せ框と戸先框）６ｃ，６ｄからなる框６内にガラスパネル７を装着してなる。前記外障子４は、例えばアルミ押出形材からなる上下框（上框と下框）８ａ，８ｂ及び左右の縦框（召し合せ框と戸先框）８ｃ，８ｄからなる框８内にガラスパネル９を装着してなる。下框６ｂ，８ｂには戸車１０，１１が取付けられ、この戸車１０，１１を介して障子３，４が下枠２ｂの上面１２にスライド開閉可能に支持されている。戸車１０，１１には障子３，４の高さ調整を行う図示しない建て付け調整機構が設けられている。
【００１１】
前記下枠２ｂの上面１２は略平坦面に形成され、室外側に配置した排水用グレーチング１３やバルコニー等のデッキ部１４と、室内側の床部１５とが下枠２ｂの上面１２と略水平に形成され、バリアフリー構造になっている。グレーチング１３の下には排水溝１６が設けられている。下枠２ｂの上面１２の戸車１０，１１が走行する部分は戸車１０，１１を案内すべく若干凹面に形成されていても良い。
【００１２】
内障子（室内側に位置する障子）３の室外側下部にはその長手方向全長に亘って垂下片（第１垂下片）１７が設けられ、外障子（室外側に位置する障子）４の室内側下部にその長手方向全長に亘って垂下片（第２垂下片１８）が設けられている。前記垂下片１７，１８は戸車１０，１１の下端よりも下方に延出されている。前記下枠２ｂの上面１２には２つの前記垂下片１７，１８を案内する幅の狭い案内溝（第１案内溝と第２案内溝）２０，２１が下枠の長手方向全長に亘って設けられている。前記網戸５の下部には下枠２ｂの上面１２を走行する戸車２２が取付けられ、網戸５の下部にはその長手方向全長に当って垂下片２３が設けられ、下枠２ｂの上面１２には垂下片２３を案内する案内溝２４が設けられている。
【００１３】
また、下枠２ｂ内にはこれを上下に仕切る隔壁２５が設けられ、該隔壁２５の上部には各案内溝２０，２１と連通した幅の広い溝部（第１溝部と第２溝部）２６，２７が隔壁２５からの３つの立上り壁（第１立上り壁、第２立上り壁、第３立上り壁）２８，２９，３０によって形成されている。隔壁２５の上部には前記立上り壁２８，２９，３０によって第１溝部２６と第２溝部２７の他に室内側溝部３１と室外側溝部３２が形成されている。隔壁２５の下部は空間部３３とされ、該空間部３３は下枠２ｂの室外壁に設けた排水口３４を通して室外の排水溝１６と連通されている。前記第１溝部２６と第２溝部２７の底部（隔壁２５）には閉鎖状態の障子３，４よりも室外側空間と前記下枠２ｂの空間部３３とを連通する排水孔３５，３６が設けられている。前記下枠２ｂの空間部３３は図示例の場合、中空部（ホロー部）からなっているが、これに限定されない。
【００１４】
前記少なくとも上部が開放された第１，第２溝部２６，２７の清掃性を向上させるために、図１０にも示すように下枠２ｂの上面１２は横断面で見て３つのカバー材（室内側カバー材、中間カバー材、室外側カバー材）３７，３８，３９により脱着可能に構成されている。室内側カバー材３７は室内側溝部３１の上面を覆うように形成され、内障子３をスライド開閉可能に支持している。室内側カバー材３７の一側部は室内側溝部３１の底部に支持され、他側部は第１立上り壁２８に支持されている。この室内側カバー材３７の他側部に後述する第１横気密材４２の取付溝が形成されている。室内側カバー材３７は取付具例えばネジ（ビス）４０で隔壁（下枠本体）２５に脱着可能に取付けられている。
【００１５】
中間カバー材３８は、第２立上り壁２９及び第３立上り壁３０を有し、第２立上り壁２９に後述する第２横気密材４３の取付溝が形成されている。室外側カバー材３９は室外側溝部３２の上面を覆うように形成され、外障子４をスライド開閉可能に支持している。室外側カバー材３９の一側部は室外側溝部３２の底部に支持され、他側部は第３立上り壁３０に支持されている。中間カバー材３８及び室外カバー材３９は一緒に、共通の取付具例えばネジ（ビス）４１により隔壁（下枠本体）２５に脱着可能に取付けられている。
【００１６】
障子３，４を取外すこと無く下枠２ｂを容易に掃除できるようにするために、図１１に示すように、内障子３側（内観右側）は室内側カバー材３７ａを固定とし、中間カバー材３８ａと室外側カバー材３９ａを脱着可能とし、外障子４側（内観左側）は中間カバー材３８ｂを固定とし、室内側カバー材３７ｂと室外側カバー材３９ｂを脱着可能としている。品質上重要な気密材が存在する部位（３７ａ，３８ｂ）を固定とし、気密性や耐久性が損なわれないようにしている。障子を左側（外障子側）に寄せた時（図１２参照）に露出する右側の室外側カバー材３９ａ及びその下の中間カバー材３８ａが脱着可能に分割されており、障子を右側（内障子側）に寄せた時〔（図１１（ｂ）参照〕に露出する室内側カバー材３７ｂ及び室外側カバー材３９ｂが脱着可能に分割されている。
【００１７】
すなわち、室内側カバー材３７は内障子側室内側カバー材３７ａと外障子側室内側カバー材３７ｂに分割され、内障子側室内側カバー材３７ａが常時固定とされ、外障子側室内側カバー材３７ｂが脱着可能とされている。中間カバー材３８は内障子側中間カバー材３８ａと外障子側中間カバー材３８ｂに分割され、内障子側中間カバー材３８ａが脱着可能とされ、外障子側中間カバー材３８ｂが常時固定とされている。室外側カバー材３９は内障子側室外側カバー材３９ａ、外障子側室外側カバー材３９ｂ及びこれらの中間室外側カバー材３９ｃに分割され、中間室外側カバー材３９ｃが常時固定とされ、内障子側室外側カバー材３９ａ及び外障子側室外側カバー材３９ｂが脱着可能とされている。
【００１８】
前記内障子側中間カバー材３８ａ、内障子側室外側カバー材３９ａ、外障子側室内側カバー材３７ｂ及び外障子側室外側カバー材は３９ｂ、一端をストッパー５３，５８や端部ピース５７に引っ掛け、他端をネジ４０，４１で止めることにより、ネジの本数の削減及び脱着作業の作業性の向上が図られている。先ず、外障子側室内側カバー材３７ｂは、下枠上（具体的には下枠本体である隔壁上、以下同様。）に取付けられた内障子用ストッパー５３に一端が引っ掛けられる。内障子用ストッパー５３には外障子側室内側カバー材３７ｂの一端を差し込んで引っ掛けるための凹部（図示省略）が形成されている。
【００１９】
外障子側室外側カバー材３９ｂは、下枠２ｂ上に取付けられた端部ピース５７に一端が引っ掛けられる。端部ピース５７には外障子側室外側カバー材３９ｂの一端を差し込んで引っ掛けるための凹部（図示省略）が形成されている。内障子側中間カバー材３８ｂ及び内障子側室外側カバー材３９ａは、下枠２ｂ上に取付けられた外障子用ストッパー５８に一端が引っ掛けられる。外障子用ストッパー５８には内障子側中間カバー材３８ｂ及び内障子側室外側カバー材３９ａの一端を差し込んで引っ掛けるための凹部（図示省略）が形成されている。
【００２０】
また、前記内障子側中間カバー材３８ａ、内障子側室外側カバー材３９ａ、外障子側室内側カバー材３７ｂ及び外障子側室外側カバー材３９ｂの他端を止めているネジ４０，４１は、図１０に示すように中間に係止部５９を有し、ネジ４０，４１を緩めてネジ頭部４０ａ，４１ａがカバー材の上面よりも上方に突出した時にカバー材の下面に当接してネジ４０，４１が引き抜けるのを防止する。これにより、ネジ４０，４１を緩めてカバー材の上面より突出したネジ頭部４０ａ，４１ａを摘み上げることによりカバー材、具体的には内障子側室外側カバー材３９ａ、外障子側室内側カバー材３７ｂ及び外障子側室外側カバー材３９ｂを下枠本体２５から容易に取外すことができる。前記係止部材５９としては、例えばナットやＣリングが適用可能である。
【００２１】
サッシ１の室内側と室外側を気密に遮断するために、枠２と閉鎖時の障子３，４により両者の間に連続した気密ライン（止水ラインともいう）を如何に形成するかが重要となる。本実施例では、図４〜図７にも示すように前記下枠２ｂにおける閉鎖状態の障子３，４の各垂下片１７，１８と案内溝２０，２１の室内側縁部との間に軟質樹脂製の横気密材（第１横気密材と第２横気密材）４２，４３が設けられている。前記横気密材４２，４３は各案内溝２０，２１の室内側縁部（気密材取付溝）に取付けられ、各横気密材４２，４３に対して各垂下片１７，１８が室外側から接している。
【００２２】
前記第１横気密材４２と第２横気密材４３のそれぞれの一端部は、閉鎖位置の障子３，４の召し合せ框６ｃ、８ｃの位置で切断されており、下枠２ｂの第１案内溝２０を含む第１溝部２６内の長手方向略中央部（召し合せ框の位置）に配置された軟質樹脂製の召し合せ框下部止水ブロック４４と、第２立上り壁２９の上部に配置された下枠風止め部材５６と、内障子３の召し合せ框６ｃの端部に設けられた樹脂製の召し合せ気密ピース４５（召し合せ下部溝塞ぎ）とを介して接続される。前記召し合せ框下部止水ブロック４４は、第１案内溝２０の左右を室内空間と室外空間とに分けている。召し合せ框下部止水ブロック４４は、第１横気密材４２と同様に気密材取付溝に取付けられて第１案内溝２０に配置される上部止水部４４ａを有している。
【００２３】
第１横気密材４２は固定側である内障子側室内側カバー材３７ａに取付けられており、第２横気密材４３は固定側である外障子側中間カバー材３８ｂに取付けられている。これにより、前記内障子側中間カバー材３８ａ、内障子側室外側カバー材３９ａ、外障子側室内側カバー材３７ｂや外障子側室外側カバー材３９ｂを取外しても、横気密材４２，４３が途中で切断されたり、縦気密材４６，４９との繋ぎ目が切れたりすることが無く、気密性及び耐久性の向上が図れる。
【００２４】
前記召し合せ気密ピース４５の下端部は下枠２ｂの上面１２と対応する形状に形成され、垂下片１７と同様に第１案内溝２０内に垂下されて召し合せ框下部止水ブロック４４に接する垂下片部４５ａを有している。召し合せ気密ピース４５は高さ調整可能（建て付け調整可能）に取付けられている。また、第１横気密材４２の端部と縦枠２ｄの縦気密材４６の下端部とは下枠端部立上り部材４７と縦枠下部気密ピース４８を介して接続されており、第２横気密材４３の端部と縦枠２ｃの縦気密材４９の下端部とは接続されている。これにより連続した気密ライン（止水ライン）が形成されている。
【００２５】
このように室内外の気密性が確保されているため、冬期などには室内外の温度差が大きくなり、障子３，４の室内面に結露水が生じる場合があり、内障子３の室内面に生じた結露水は内障子３の室内側下部（下縁部）５０から下枠２ｂの上面１２に落下する。下枠２ｂの上面１２に落下した結露水が室内に流れ込むのを防止するために、換言すれば、室内外の気密性を保持しつつ前記結露水を室外に排水するために、前記下枠２ｂの上面１２には前記内障子３の室内側下部（下縁部）５０から落下する結露水を受ける深さの浅い水受溝５１が下枠２ｂの長手方向全長に亘って設けられ、該水受溝５１から室外に連通した前記下枠２ｂ内の空間部３３へ排水するための排水弁５２が設けられ、該排水弁５２を経由して結露水が室内側から室外へ排水されるようになっている。前記内障子３の室内側下部（垂下片ともいう）５０は、前記水受溝５１の真上にある。
【００２６】
好ましくは、図７ないし図８に示すように、前記下枠２ｂの上面１２には前記水受溝５１が設けると共に該水受溝５１の一端に内障子３の全開位置を規制する内障子用ストッパー５３が設けられ、水受溝５１の内障子用ストッパー５３で隠れた部分から室外に連通した下枠２ｂ内の空間部３３へ排水するための排水弁５２が設けられている。本実施例では、前記水受溝５１の内障子用ストッパー５３で隠れた部分に排水孔５４が設けられ、水受溝５１の下方の室内側溝部３１の隔壁２５に排水弁５２が取付けられている。前記内障子３の室内側下部（下縁部）５０は下框６ｂの長手方向に沿って内障子３の全長に亘って設けられている（縦通し框の場合、縦框６ｃ、６ｄの室内側下端部を含む）。前記内障子３の室内側下部（下縁部）５０は水受溝５１に近接していることが戸車１０を隠せて意匠性の向上が図れる点で好ましい。
【００２７】
前記排水弁５２は、例えば図９の（ａ），（ｂ）に示すように下枠２ｂの隔壁２５に設けた開口部５５に取付けられる本体５２ａと、この本体５２ａに開閉可能に取付けられた弁体５２ｂとから主に構成されている。通常は、図９の（ａ）に示すように弁体５２ｂが下方に開いた隙間５２ｃから結露水が排水されるが、図９の（ｂ）に示すように室外側からの風圧により弁体５２ｂが上方に閉じて水の逆流を防止するようになっている。
【００２８】
一方、図８の破線で示すように第１立上り壁２８の端部を切り欠いて第１溝部２６と室内側溝部３１とを連通させることにより、一点鎖線の矢印で示すように外障子４の室内面から垂下片１８を伝わって下枠２ｂの上面１２に流下し、更に第１案内溝２０から第１溝部２６に流入した結露水が、第１溝部２６から室内側溝部３１の排水弁５２に至り、該排水弁５２を経由して室外へ排水されるようになっている。
【００２９】
網戸５は上下框６０ａ，６０ｂおよび左右縦框６０ｃ，６０ｄからなる框６０内に網材６１を張設してなり、各縦框６０ｃ，６０ｄの室内面には図１３にも示すように外障子４の縦框８ｃまたは８ｄの室外面との間を遮断する防虫部材（例えばモヘアやヒレ）６２，６２が設けられている。そして、外障子４の室内側下部に垂下片１８を有するものでありながら、外障子縦框下端部の防虫パッキンを不要にし、簡単な構造で防虫性を確保するために、前記外障子４の室外側下部の下方の下枠上面１２には浅い溝部６３が長手方向（左右方向）に設けられていると共に、外障子４の室外側下部には防虫用垂下片６４が前記溝部６３に近付けて設けられている。
【００３０】
前記溝部６３は、室内側の前記水受溝５１と同様に深さが例えば１．５〜３．０ｍｍ程度の浅い溝とされている。前記防虫用垂下片６４は、気密用垂下片１８と同様に外障子４の左右方向全長に亘って設けられている。防虫用垂下片６４の下端と、対応する溝部６３の底部との間の隙間は、防虫性に問題の無い例えば１．５ｍｍ程度とされている。この場合、防虫用垂下片６４の下端と下枠上面との間の隙間は、光漏れや戸車２２が見えるのを防止するために０ｍｍ程度が好ましい。
【００３１】
以上の構成からなるサッシ１によれば、上下枠２ａ，２ｂ及び左右の縦枠２ｃ，２ｄからなる枠２と、該枠２内にスライド開閉可能に設けられた内外の障子３，４と、枠２内の室外側にスライド開閉可能に設けられた網戸５とを備え、前記下枠２ａの上面を略平坦面に形成し、内障子３の室外側下部と外障子４の室内側下部に垂下片１７，１８を設け、下枠２ｂの上面に各垂下片１７，１８を案内する案内溝２０，２１を形成し、前記外障子４の室外側下部の下方の下枠上面に浅い溝部６３を設けると共に、外障子４の室外側下部に防虫用垂下片６４を前記溝部６３に近付けて設けているため、外障子４の室外側下部の防虫用垂下片６４と下枠上面１２の対応する浅い溝部６３とにより外障子４の室外側に防虫ラインを形成することができ、防虫ラインが外障子４の室内側にある従来のサッシに不可欠であった外障子縦框下端部の防虫パッキンを不要にでき、簡単な構造で防虫性を確保できる。
【００３２】
しかも、溝部６３に対して前記防虫用垂下片６４の下端を防虫性に問題の無い程度（１．５ｍｍ）に近付けておくだけで良く、防虫用垂下片６４の下端と下枠上面との間の隙間を０ｍｍ程度にすることができるので、下枠２ｂと外障子４間の隙間による光漏れや戸車２２が見えるのを防止することができ、意匠性の向上が図れる。下枠２ｂの室外側上面に設けた溝部６３は深さが浅いため、掃除が容易にできると共に、見栄え（意匠性）も良い。また、下枠２ｂの上面１２に溝部が無い場合よりも溝部６３の深さだけ更に外障子４を上下に高さ調整（建て付け調整）することが可能になり、内障子と同様に外障子の建て付け調整が容易になる。
【００３３】
また、下枠２ｂの上面を室内側カバー材３７、中間カバー材３８及び室外側カバー材３９により構成し、室内側カバー材３７に内障子３の垂下片１７と対応する第１横気密材４２を設け、中間カバー材３８に外障子４の垂下片１８と対応する第２横気密材４３を設け、内障子側は室内側カバー材３７ａを固定とし、中間カバー材３８ａと室外側カバー材３９ａを脱着可能とし、外障子側は中間カバー材を３８ｂ固定とし、室内側カバー材３７ｂと室外側カバー材３９ｂを脱着可能としているため、気密性や耐久性を損なうことなく下枠上面のカバー材３８ａ，３９ａ，３８ｂ，３７ｂを脱着して下枠２ｂを容易に掃除できる。この場合、内障子側の中間カバー材３８ａと室外側カバー材３９ａは共通の取付具例えばネジ４１で共締めされているから脱着作業が短時間で容易にでき、作業性の向上が図れる。
【００３４】
前記下枠２ｂの上面１２に前記内障子３の室内側下部５０から落下する結露水を受ける浅い水受溝５１を設け、該水受溝５１から室外に連通した下枠２ｂ内の空間部３３へ排水するための排水弁５２を設け、該排水弁５２を経由して結露水が室内側から室外へ排水されるため、内障子３の室内側下部５０から下枠２ｂの上面１２に落下した結露水が室内側に流れて室内が濡れるのを防止することができる。また、排水弁５２等の排水部（排水孔５４を含む）が内障子用ストッパー５３で隠れ、排水部である排水弁５２や排水孔５４が露出しないので意匠性の向上が図れる。前記排水弁５２によって、室外から風が室内に入り込んだり、水が逆流したりするのを防止することができ、室内外の気密性（水密性を含む）を保ったまま室内の結露水を室外に円滑に排水することができる。また、下枠２ｂの室内側上面に設けた水受溝５１は深さが浅いため、掃除が容易にできると共に、見栄え（意匠性）も良い。
【００３５】
以上、本発明の実施の形態を図面により詳述してきたが、本発明は前記実施の形態ないし実施例に限定されるものではなく、本発明の要旨を逸脱しない範囲での種々の設計変更等が可能である。例えば、前記実施例では内障子の室外側下部に垂下片が設けられている例が示されているが、内障子の室内側下部に垂下片が設けられていても良い。本発明は、引違いサッシ以外に、外動タイプの片引戸にも適用可能である。
【００３６】
【発明の効果】
以上要するに本発明によれば、上下枠及び左右の縦枠からなる枠と、該枠内の少なくとも室外側に左右方向に開閉可能に設けられた障子と、枠内の室外側に左右方向に開閉可能に設けられた網戸とを備え、前記下枠の上面を略平坦面に形成し、前記障子の室内側下部に垂下片を設け、下枠の上面に垂下片を案内する案内溝を形成し、前記障子の室外側下部の下方の下枠上面に浅い溝部を設けると共に、前記障子の室外側下部に防虫用垂下片を前記溝部に近付けて設けているため、簡単な構造で防虫性を確保でき、外障子縦框下端部の防虫パッキンを不要にできる。
【図面の簡単な説明】
【図１】本発明の実施の形態の開口部装置を概略的に示す室内側正面図である。
【図２】図１の横断面図である。
【図３】図１の縦断面図である。
【図４】気密構造を説明するための概略的斜視図である。
【図５】召内框下部の気密構造を説明するための概略的斜視図である。
【図６】召内框下部の気密構造を説明するための概略的斜視図である。
【図７】開口部装置の要部縦断面図である。
【図８】同要部横断面図である。
【図９】排水弁の一例を示す図で、（ａ）は排水時の断面図、（ｂ）は逆流防止時の断面図である。
【図１０】（ａ）はカバー材の取付状態を示す図、（ｂ）はネジを緩めた状態を示す図、（ｃ）はカバー材を取付した状態を示す図である。
【図１１】（ａ）は下枠の上面におけるカバー材の分割状態を示す図、（ｂ）は障子を右側に移動した下枠の上面を示す図である。
【図１２】要部拡大断面図である。
【図１３】網戸を閉めた状態を示す横断面図である。
【図１４】従来の開口部装置の一例を示す図で、（ａ）は概略的縦断面図、（ｂ）は概略的縦横面図である。
【符号の説明】
１サッシ（開口部装置）
２枠
２ａ上枠
２ｂ下枠
２ｃ，２ｄ縦枠
４外障子（障子）
１２下枠の上面
１８垂下片
２１案内溝
６３溝部
６４防虫用垂下片[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an opening device, and more particularly to an opening device in which an upper surface of a lower frame is formed as a barrier-free substantially flat surface and includes a screen door.
[0002]
[Prior art]
As an opening device, for example, as shown in FIGS. 14A and 14B, a frame 2 including upper and lower frames 2a and 2b and left and right vertical frames 2c and 2d provided in an outdoor opening of a building; The sliding screens 3 and 4 are provided on the lower frame 2a in the frame 2 so as to be slidable in the left and right directions via a door roller. The upper surface of the lower frame 2b is formed as a substantially flat surface. A lower frame flat sash having a barrier-free structure in which hanging pieces 17, 18 are provided at lower portions of the sliding doors 3, 4 on the indoor side, and guide grooves 20, 21 for guiding the hanging pieces 17, 18 are provided on the upper surface of the lower frame 2b. (It is also referred to as a non-rail sash because there is no protruding rail on the upper surface of the lower frame) (for example, see JP-A-2002-227537).
[0003]
On the other hand, as the lower frame flat sash, the applicant provided the hanging pieces on the lower part of the inner side of the inner sliding door and the lower part of the inner side of the outer sliding door, and provided the guide groove for guiding each hanging piece on the upper surface of the lower frame. Proposed.
[0004]
[Patent Document 1]
JP-A-2002-227537
[Problems to be solved by the invention]
By the way, in any of the above-mentioned sashes, the screen door 5 is provided on the outside of the frame 2 so as to be slidable in the left-right direction. However, in the case of the sash, although the hanging piece 18 is an insect repellent line that blocks the invasion of insects, since the hanging piece 18 is located inside the room of the outer sash 4, the hanging piece 18 and the screen door 5 are not connected to each other. Insects may enter through the gap between the upper surface of the lower frame 2b and the lower part of the outer sash 4 between them. Therefore, in order to prevent the insects from entering through the gap, the insect repellent line of the vertical door frame and the insect repellent line of the hanging piece 18 of the sliding door 4 are connected. , 70 need to be provided.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an opening device which can ensure insect repellency with a simple structure and does not require insect repellent packing at the lower end of a vertical frame of a sash.
[0007]
[Means for Solving the Problems]
The present invention provides a frame including an upper and lower frame and a left and right vertical frame, a shoji provided at least on the outdoor side in the frame so as to be openable and closable in a left and right direction, and a shoji provided on the outdoor side in the frame so as to be able to open and close in a left and right direction. Screen, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided in the lower portion of the indoor side of the shoji, a guide groove for guiding the hanging piece is formed on the upper surface of the lower frame, A shallow groove is provided on the upper surface of the lower frame below the outdoor lower part, and an insect repellent piece is provided on the lower outdoor part of the sash near the groove.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view of the inside of a room schematically showing an opening device according to an embodiment of the present invention, FIG. 2 is a transverse sectional view of FIG. 1, and FIG. 3 is a longitudinal sectional view of FIG. FIG. 4 is a schematic perspective view for explaining the air-tight structure, and FIGS. 5 and 6 are schematic perspective views for explaining the air-tight structure at the lower part of the house frame. FIG. 7 is a longitudinal sectional view of a main part of the opening device, and FIG. 8 is a transverse sectional view of the main part. 9A and 9B show an example of a drain valve, in which FIG. 9A is a cross-sectional view at the time of drainage, and FIG. 9B is a cross-sectional view at the time of backflow prevention.
[0009]
1 to 3 and 7, reference numeral 1 denotes a lower frame flat sash (non-rail sash) which is an opening device. The sash 1 is an upper and lower frame (an upper frame and a lower frame) attached to an outdoor opening of a building. A frame 2 composed of 2a, 2b and left and right vertical frames 2c, 2d, and a sliding door (in the present embodiment) slidably mounted in at least the outside of the frame 2, in this embodiment, the outside and the inside of the room so as to be slidable in the left-right direction. In the example, sliding sliding doors) 3 and 4 are provided. A screen door 5 is attached to the outside of the frame 2 so as to be slidable in the left-right direction. The upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c and 2d are made of, for example, an extruded aluminum material.
[0010]
The inner shoji 3 is, for example, a glass panel in a frame 6 composed of upper and lower frames (upper frame and lower frame) 6a and 6b and left and right vertical frames (combination frame and door frame) 6c and 6d made of extruded aluminum. 7 is attached. The outer shoji 4 is made of glass panels in a frame 8 composed of upper and lower frames (upper and lower frames) 8a and 8b and left and right vertical frames (combination and door frames) 8c and 8d made of extruded aluminum, for example. 9 is attached. Door rollers 10, 11 are attached to the lower frames 6b, 8b, and the sliding doors 3, 4 are supported on the upper surface 12 of the lower frame 2b via the door rollers 10, 11 so as to be slidable. The door wheels 10 and 11 are provided with a built-in adjustment mechanism (not shown) for adjusting the height of the shoji screens 3 and 4.
[0011]
The upper surface 12 of the lower frame 2b is formed in a substantially flat surface, and the draining grating 13 and the deck portion 14 such as a balcony arranged on the outdoor side and the floor portion 15 on the indoor side are substantially horizontal with the upper surface 12 of the lower frame 2b. And a barrier-free structure. A drain 16 is provided below the grating 13. The portion of the upper surface 12 of the lower frame 2b on which the door rollers 10, 11 travel may be formed to be slightly concave in order to guide the door rollers 10, 11.
[0012]
A hanging piece (first hanging piece) 17 is provided in the lower part of the outdoor side of the inner sash (shoji located on the indoor side) 3 over the entire length in the longitudinal direction, and a room for the outer sash (shoji located on the outdoor side) 4 is provided. A hanging piece (a second hanging piece 18) is provided on the inner lower portion over the entire length in the longitudinal direction. The hanging pieces 17 and 18 extend below the lower ends of the door wheels 10 and 11. Narrow guide grooves (first guide groove and second guide groove) 20, 21 for guiding the two hanging pieces 17, 18 are provided on the upper surface 12 of the lower frame 2b over the entire length of the lower frame in the longitudinal direction. Has been. A door wheel 22 that runs on the upper surface 12 of the lower frame 2b is attached to the lower part of the screen door 5, and a hanging piece 23 is provided at the lower part of the screen door 5 along the entire length in the longitudinal direction. A guide groove 24 for guiding the hanging piece 23 is provided.
[0013]
A partition 25 is provided in the lower frame 2b to partition the partition up and down. Above the partition 25, wide grooves (first and second grooves) 26, 26 communicating with the guide grooves 20, 21 are provided. 27 is formed by three rising walls (a first rising wall, a second rising wall, and a third rising wall) 28, 29, and 30 from the partition wall 25. In addition to the first groove 26 and the second groove 27, an indoor groove 31 and an outdoor groove 32 are formed at the upper portion of the partition wall 25 by the rising walls 28, 29, and 30. The lower portion of the partition wall 25 is a space portion 33, and the space portion 33 is communicated with the outdoor drain groove 16 through a drain port 34 provided on the outdoor wall of the lower frame 2b. Drain holes 35 and 36 are provided at the bottom (partition wall 25) of the first groove portion 26 and the second groove portion 27 to communicate the outdoor space with the space portion 33 of the lower frame 2b rather than the closed shoji 3 and 4. Has been. In the illustrated example, the space 33 of the lower frame 2b is a hollow part (hollow part), but is not limited to this.
[0014]
In order to improve the cleanability of the first and second grooves 26, 27 having at least the upper part opened, the upper surface 12 of the lower frame 2b has three cover members (chambers) as viewed in cross section as shown in FIG. The inner cover member, the intermediate cover member, and the outdoor cover member) 37, 38, and 39 are configured to be detachable. The indoor-side cover member 37 is formed so as to cover the upper surface of the indoor-side groove portion 31 and supports the inner sash 3 so that it can be slidably opened and closed. One side portion of the indoor side cover member 37 is supported by the bottom of the indoor side groove portion 31, and the other side portion is supported by the first rising wall 28. At the other side of the indoor side cover member 37, a mounting groove for a first lateral airtight member 42 described later is formed. The indoor side cover member 37 is detachably attached to the partition wall (lower frame main body) 25 by a fixture such as a screw (screw) 40.
[0015]
The intermediate cover member 38 has a second rising wall 29 and a third rising wall 30, and a mounting groove for a second lateral airtight member 43 described later is formed in the second rising wall 29. The outdoor-side cover member 39 is formed so as to cover the upper surface of the outdoor-side groove 32, and supports the outer sash 4 so that it can be slidably opened and closed. One side of the outdoor cover member 39 is supported by the bottom of the outdoor groove 32, and the other side is supported by the third rising wall 30. The intermediate cover member 38 and the outdoor cover member 39 are detachably attached to the partition (lower frame main body) 25 together by a common attachment tool, for example, a screw (screw) 41.
[0016]
In order to easily clean the lower frame 2b without removing the sashes 3 and 4, as shown in FIG. 11, the inner sash 3 side (inside right side) has an indoor side cover material 37a fixed and an intermediate cover material. The cover 38a and the outdoor cover 39a are detachable, the outer sash 4 side (inside view left side) is fixed with the intermediate cover 38b, and the indoor cover 37b and the outdoor cover 39b are detachable. The portions (37a, 38b) where the airtight material important in quality exists are fixed so that airtightness and durability are not impaired. The right outdoor cover member 39a and the intermediate cover member 38a under the right outdoor cover member 39a that are exposed when the sash is moved to the left side (external sash) (see FIG. 12) are detachably divided. (See FIG. 11 (b)), the indoor-side cover member 37b and the outdoor-side cover member 39b that are exposed when detached to the side (see FIG. 11B) are detachably divided.
[0017]
That is, the indoor-side cover member 37 is divided into an inner-shoji-side indoor-side cover member 37a and an outer-shoji-side indoor-side cover member 37b, and the inner-shoji-side indoor-side cover member 37a is fixed at all times, and the outer-shoji-side indoor cover member 37b is removable. It has been. The intermediate cover member 38 is divided into an inner sliding door side intermediate cover member 38a and an outer sliding door side intermediate cover member 38b. The inner sliding door side intermediate cover member 38a is detachable, and the outer sliding door side intermediate cover member 38b is always fixed. I have. The outdoor-side cover member 39 is divided into an inner-shoji-side outdoor-side cover material 39a, an outer-shoji-side-side outdoor-side cover material 39b, and an intermediate-room-side outer cover material 39c. The cover member 39a and the outer sliding door side cover member 39b are detachable.
[0018]
The inner sliding door-side intermediate cover member 38a, the inner sliding door-side outdoor cover member 39a, the outer sliding door-side indoor cover member 37b, and the outer sliding door-side outdoor cover member 39b have one end hooked to stoppers 53 and 58 and the end piece 57, and the other end. Are fixed by the screws 40 and 41, thereby reducing the number of screws and improving the workability of the attaching / detaching operation. First, one end of the outer sliding door-side indoor-side cover member 37b is hooked on an inner sliding door stopper 53 mounted on a lower frame (specifically, on a partition which is a lower frame main body, the same applies hereinafter). A recess (not shown) for inserting and hooking one end of the outer sliding door side indoor side cover member 37b is formed in the inner sliding door stopper 53.
[0019]
One end of the outer door member 39b is hooked on the end piece 57 attached on the lower frame 2b. A concave portion (not shown) is formed in the end piece 57 for inserting and hooking one end of the outer cover member 39b on the outer side of the sliding door. One end of the inner sliding door-side intermediate cover member 38b and the inner sliding door-side outdoor-side cover member 39a is hooked on a stopper 58 for the outer sliding door attached to the lower frame 2b. A recess (not shown) for inserting and hooking one end of the inner-shoji-side intermediate cover member 38b and the inner-shoji-side outdoor-side cover member 39a is formed in the stopper 58 for the shoji.
[0020]
The screws 40 and 41 for fixing the other ends of the inner-shoji-side intermediate cover material 38a, the inner-shoji-side outdoor-side cover material 39a, the outer-shoji-side indoor-side cover material 37b, and the outer-shoji-side outdoor cover material 39b are shown in FIG. As shown, a locking portion 59 is provided in the middle, and when the screws 40, 41 are loosened and the screw heads 40a, 41a protrude above the upper surface of the cover material, they come into contact with the lower surface of the cover material and the screws 40, 41 To prevent pulling out. Thus, by loosening the screws 40 and 41 and picking up the screw heads 40a and 41a protruding from the upper surface of the cover material, the cover material, specifically, the inner-shoji side outdoor-side cover material 39a and the outer-shoji side indoor-side cover material 37b In addition, it is possible to easily remove the outer sliding door side cover member 39b from the lower frame main body 25. As the locking member 59, for example, a nut or a C-ring can be applied.
[0021]
It is important to form a continuous airtight line (also referred to as a water stop line) between the sash 1 and the outside of the sash 1 between the two by the frame 2 and the sliding doors 3 and 4 when the sash 1 is closed in an airtight manner. It becomes. In this embodiment, as shown in FIGS. 4 to 7, the lower frame 2b is provided between the hanging pieces 17, 18 of the closed shojis 3, 4 in the closed state and the indoor side edges of the guide grooves 20, 21. Resin horizontal airtight materials (first horizontal airtight material and second horizontal airtight material) 42 and 43 are provided. The horizontal airtight members 42 and 43 are attached to the indoor side edges (airtight material mounting grooves) of the guide grooves 20 and 21, and the hanging pieces 17 and 18 contact the horizontal airtight members 42 and 43 from the outdoor side. ing.
[0022]
One end of each of the first horizontal airtight material 42 and the second horizontal airtight material 43 is cut at the position of the joining frames 6c and 8c of the shojis 3 and 4 in the closed position, and the first guide of the lower frame 2b. A soft-resin lower frame waterproof block 44 disposed at a substantially central portion in the longitudinal direction of the first groove portion 26 including the groove 20 (position of the lower frame), and disposed above the second rising wall 29. The lower frame windproof member 56 is connected to a resin sealing airtight piece 45 (sealing lower groove closing) provided at an end of the sealing frame 6c of the inner sash 3. The water blocking block 44 at the bottom of the mating frame divides the left and right of the first guide groove 20 into an indoor space and an outdoor space. The lower water blocking block 44 of the mating frame has an upper water stopping portion 44 a attached to the airtight material mounting groove and arranged in the first guide groove 20 similarly to the first horizontal airtight material 42.
[0023]
The first lateral airtight member 42 is attached to the inner side shroud side indoor cover member 37a, which is a fixed side, and the second lateral airtight member 43 is attached to the outer sash side intermediate cover member 38b, which is a fixed side. Accordingly, even if the inner cover member 38a, the inner cover member 39a, the outer cover member 37b, and the outer cover member 39b are removed, the lateral airtight members 42 and 43 are cut in the middle. And the seam between the vertical airtight members 46 and 49 is not broken, and the airtightness and durability can be improved.
[0024]
The lower end of the sealing airtight piece 45 is formed in a shape corresponding to the upper surface 12 of the lower frame 2b, and is hung down in the first guide groove 20 like the hanging piece 17, and comes into contact with the lower water blocking block 44 of the hoop frame. It has a hanging piece 45a. The combined airtight piece 45 is mounted so as to be adjustable in height (adjustable in installation). Further, the end of the first horizontal hermetic member 42 and the lower end of the vertical hermetic member 46 of the vertical frame 2d are connected via a lower frame end rising member 47 and a vertical frame lower hermetic piece 48, and are connected to the second horizontal hermetic member 48. The end of the airtight member 43 and the lower end of the vertical airtight member 49 of the vertical frame 2c are connected. Thereby, a continuous airtight line (water stop line) is formed.
[0025]
Since the indoor and outdoor airtightness is ensured in this way, the temperature difference between the indoor and outdoor areas becomes large in winter and the like, and dew condensation may occur on the indoor surfaces of the shoji screens 3 and 4. Dew falls on the upper surface 12 of the lower frame 2b from the lower portion (lower edge) 50 of the inner sash 3 on the indoor side. In order to prevent the dew condensation water dropped on the upper surface 12 of the lower frame 2b from flowing into the room, in other words, to drain the dew condensation water to the outside while maintaining the airtightness between the inside and the outside of the lower frame 2b. A water receiving groove 51 having a shallow depth for receiving dew condensation water falling from a lower portion (lower edge portion) 50 on the indoor side of the inner shroud 3 is provided over the entire length of the lower frame 2b in the longitudinal direction. A drain valve 52 for draining water from the receiving groove 51 to the space 33 in the lower frame 2b communicating with the outside of the room is provided, and the dew water is drained from the indoor side to the outside of the room via the drain valve 52. Has become. A lower portion (also referred to as a hanging piece) 50 of the inner sash 3 on the indoor side is located directly above the water receiving groove 51.
[0026]
Preferably, as shown in FIGS. 7 and 8, the water receiving groove 51 is provided on the upper surface 12 of the lower frame 2 b, and at the one end of the water receiving groove 51, the inner sash for regulating the fully open position of the inner sash 3 is provided. A stopper 53 is provided, and a drain valve 52 is provided for draining water from a portion of the water receiving groove 51 hidden by the inner sash stopper 53 to the space 33 in the lower frame 2b communicating outside. In the present embodiment, a drain hole 54 is provided in a portion of the water receiving groove 51 that is hidden by the inner sash stopper 53, and a drain valve 52 is attached to the partition wall 25 of the indoor side groove 31 below the water receiving groove 51. I have. The lower portion (lower edge portion) 50 of the inner sash 3 on the indoor side is provided along the entire length of the inner sash 3 along the longitudinal direction of the lower frame 6b (in the case of a vertical frame, the rooms of the vertical frames 6c, 6d). Including the lower inside edge). The lower portion (lower edge portion) 50 of the inner sash 3 on the indoor side is preferably close to the water receiving groove 51 in that the door roller 10 can be hidden to improve the design.
[0027]
The drain valve 52 is, for example, as shown in FIGS. 9A and 9B, a main body 52a attached to an opening 55 provided in the partition wall 25 of the lower frame 2b, and is attached to the main body 52a so as to be openable and closable. It is mainly composed of the valve element 52b. Normally, as shown in FIG. 9A, the condensed water is drained from the gap 52c in which the valve body 52b opens downward, but as shown in FIG. 52b is closed upward to prevent backflow of water.
[0028]
On the other hand, by cutting off the end of the first rising wall 28 as shown by the broken line in FIG. 8 to communicate the first groove 26 and the indoor side groove 31, as shown by the one-dot chain line arrow, The condensed water flowing down from the indoor surface to the upper surface 12 of the lower frame 2b along the hanging piece 18 and further flowing into the first groove portion 26 from the first guide groove 20 is discharged from the first groove portion 26 to the drain valve 52 of the indoor side groove portion 31. And drained to the outside of the room via the drain valve 52.
[0029]
The screen door 5 is constructed by extending a net material 61 inside a frame 60 composed of upper and lower frames 60a and 60b and left and right vertical frames 60c and 60d. As shown in FIG. Insect repellent members (for example, mohair or fins) 62, 62 are provided to block the space between the vertical frame 8c or 8d of the shoji 4 and the outdoor surface. And while having the hanging piece 18 in the lower part of the indoor side of the outer sash 4, the outer sash 4 is required in order to eliminate the need for the insect-proof packing at the lower end of the vertical frame of the outer sash and secure the insect repellency with a simple structure. A shallow groove 63 is provided in the longitudinal direction (left-right direction) on the lower frame upper surface 12 below the outdoor lower part, and an insect-proof hanging piece 64 approaches the groove 63 on the outdoor lower part of the outer sash 4. Is provided.
[0030]
The groove portion 63 is a shallow groove having a depth of, for example, about 1.5 to 3.0 mm, similarly to the water receiving groove 51 on the indoor side. The insect repelling piece 64 is provided over the entire length of the shoji 4 in the left-right direction similarly to the airtight hanging piece 18. The gap between the lower end of the insect repellent hanging piece 64 and the corresponding bottom of the groove 63 is, for example, about 1.5 mm, which has no problem in insect repellency. In this case, the gap between the lower end of the insect-control hanging piece 64 and the upper surface of the lower frame is preferably about 0 mm in order to prevent light leakage and the door wheel 22 from being seen.
[0031]
According to the sash 1 configured as described above, the frame 2 including the upper and lower frames 2a and 2b and the left and right vertical frames 2c and 2d, and the inner and outer shojis 3 and 4 provided in the frame 2 so as to be slidable and openable, A screen door 5 slidably openable and closable on the outside of the frame 2, the upper surface of the lower frame 2 a is formed as a substantially flat surface, and the lower part of the inner side of the inner sash 3 and the lower part of the outer side of the outer sash 4 Hanging pieces 17 and 18 are provided, and guide grooves 20 and 21 for guiding the hanging pieces 17 and 18 are formed on the upper surface of the lower frame 2b. In addition to the above, since the insect-controlling drooping piece 64 is provided near the groove 63 at the lower part of the outer side of the outer sliding door 4, the insect-controlling drooping piece 64 at the lower part of the outer side of the outer sliding door 4 corresponds to the lower frame upper surface 12. With the shallow groove 63, an insect repelling line can be formed on the outdoor side of the shoji 4 and The insect packing of the outer sash stile lower portion insects line was indispensable to the conventional sash on the interior side of the outer sash 4 can be eliminated, the insect can be ensured with a simple structure.
[0032]
In addition, it is sufficient that the lower end of the insect repellent hanging piece 64 is close to the groove 63 to such an extent that there is no problem in insect repellency (1.5 mm). Can be reduced to about 0 mm, so that light leakage due to the gap between the lower frame 2b and the sash 4 and the door roller 22 can be prevented from being seen, and the design can be improved. The groove 63 provided on the outdoor upper surface of the lower frame 2b has a small depth, so that it can be easily cleaned and has good appearance (design). Further, the height of the outer sash 4 can be further adjusted up and down (building adjustment) by the depth of the groove 63 as compared with the case where there is no groove on the upper surface 12 of the lower frame 2b. It is easy to adjust the building.
[0033]
Further, the upper surface of the lower frame 2b is constituted by the indoor side cover member 37, the intermediate cover member 38, and the outdoor side cover member 39, and the first side airtight member 42 corresponding to the hanging piece 17 of the inner sash 3 is provided on the indoor side cover member 37. The intermediate cover member 38 is provided with a second lateral airtight member 43 corresponding to the hanging piece 18 of the outer sash 4, the inner sash is fixed to the indoor cover member 37 a, and the intermediate cover member 38 a and the outdoor cover member 39 a The intermediate cover material is fixed at 38b on the side of the outer sash, and the indoor cover material 37b and the outdoor cover material 39b are removable, so that the cover material on the upper surface of the lower frame can be maintained without impairing the airtightness and durability. The lower frame 2b can be easily cleaned by attaching and detaching 38a, 39a, 38b, 37b. In this case, since the intermediate cover member 38a and the outdoor cover member 39a on the inner side of the shoji are fastened together by a common mounting tool, for example, the screw 41, the attaching / detaching operation can be easily performed in a short time, and the workability can be improved.
[0034]
On the upper surface 12 of the lower frame 2b, a shallow water receiving groove 51 for receiving dew condensation water falling from the indoor side lower portion 50 of the inner shroud 3 is provided, and a space 33 in the lower frame 2b communicating from the water receiving groove 51 to the outside of the room. A drain valve 52 for draining water is provided, and the condensed water is drained from the indoor side to the outdoor via the drain valve 52, so that the condensate water has dropped from the indoor lower part 50 of the inner sash 3 to the upper surface 12 of the lower frame 2b. It is possible to prevent the dew water from flowing to the indoor side and getting the room wet. Further, the drainage portion (including the drainage hole 54) of the drainage valve 52 and the like is hidden by the stopper 53 for the inner sash, and the drainage valve 52 and the drainage hole 54, which are the drainage portion, are not exposed, so that the design can be improved. The drain valve 52 can prevent the wind from entering the room from outside and prevent the water from flowing backward, and can condense water inside the room while maintaining airtightness (including watertightness) inside and outside the room. It can be drained smoothly. Further, the water receiving groove 51 provided on the indoor upper surface of the lower frame 2b has a small depth, so that it can be easily cleaned and has good appearance (design).
[0035]
As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the above-described embodiments or examples, and various design changes and the like can be made without departing from the gist of the present invention. Is possible. For example, in the above-described embodiment, an example is shown in which the hanging piece is provided at the lower portion of the inner side of the inner sliding door, but the lowering piece may be provided at the lower portion of the inner side of the inner sliding door. The present invention is applicable not only to a sliding sash but also to an externally moving single sliding door.
[0036]
【The invention's effect】
In short, according to the present invention, a frame composed of an upper and lower frame and a left and right vertical frame, a shoji provided at least in the outdoor side in the frame so as to be openable and closable in the left and right directions, and a laterally openable and closable outer side in the frame Screen door provided so that the upper surface of the lower frame is formed as a substantially flat surface, a hanging piece is provided at a lower portion of the sliding door on the indoor side, and a guide groove for guiding the hanging piece is formed on the upper surface of the lower frame. Since a shallow groove is provided on the upper surface of the lower frame below the outdoor lower part of the shoji and the insect repellent hanging piece is provided near the groove at the outdoor lower part of the shoji, the insect repellency is secured with a simple structure. It is possible to eliminate the need for the insect-proof packing at the lower end of the vertical frame of the shoji.
[Brief description of the drawings]
FIG. 1 is an indoor side front view schematically showing an opening device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of FIG.
FIG. 3 is a longitudinal sectional view of FIG.
FIG. 4 is a schematic perspective view for explaining an airtight structure.
FIG. 5 is a schematic perspective view for explaining an airtight structure of a lower part of a house frame.
FIG. 6 is a schematic perspective view for explaining an airtight structure of a lower part of a house frame.
FIG. 7 is a longitudinal sectional view of a main part of the opening device.
FIG. 8 is a cross-sectional view of the main part.
9A and 9B are diagrams illustrating an example of a drain valve, in which FIG. 9A is a cross-sectional view when drainage is performed, and FIG. 9B is a cross-sectional view when backflow prevention is performed.
10A is a diagram illustrating a state where a cover member is attached, FIG. 10B is a diagram illustrating a state where a screw is loosened, and FIG. 10C is a diagram illustrating a state where a cover member is attached.
FIG. 11A is a diagram showing a divided state of the cover material on the upper surface of the lower frame, and FIG. 11B is a diagram showing the upper surface of the lower frame in which the shoji has been moved to the right.
FIG. 12 is an enlarged sectional view of a main part.
FIG. 13 is a cross-sectional view showing a state where a screen door is closed.
14A and 14B are diagrams showing an example of a conventional opening device, wherein FIG. 14A is a schematic vertical sectional view, and FIG. 14B is a schematic vertical and horizontal sectional view.
[Explanation of symbols]
1 sash (opening device)
2 frame 2a upper frame 2b lower frame 2c, 2d vertical frame 4 outer shoji (shoji)
12 Upper surface of lower frame 18 Hanging piece 21 Guide groove 63 Groove 64 Hanging piece for insect repellent

Claims

A frame consisting of an upper and lower frame and a right and left vertical frame, a shoji provided at least on the outdoor side in the frame so as to be openable and closable in the left and right direction, and a screen door provided on the outdoor side inside the frame so as to be openable and closable in the left and right direction. The upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided in the lower portion of the sliding door on the indoor side, a guide groove for guiding the hanging piece is formed on the upper surface of the lower frame, An opening device, wherein a shallow groove is provided on the upper surface of a lower frame below, and an insect repellent hanging piece is provided at a lower portion of the outside of the sliding door closer to the groove.