JP4024717B2

JP4024717B2 - Opening device

Info

Publication number: JP4024717B2
Application number: JP2003156352A
Authority: JP
Inventors: 富広山下
Original assignee: Tostem Corp
Current assignee: Tostem Corp
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2007-12-19
Anticipated expiration: 2023-06-02
Also published as: JP2004360201A

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内障子の室外側下部に垂下片を有し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、例えば特許文献１に記載されているように、建築物の屋外開口部に設けられる上下枠及び左右の縦枠からなる枠と、該枠内の前記下枠上に戸車を介して左右方向に引違いにスライド開閉可能に設けられた内外の障子とを備え、前記下枠の上面を略平坦面に形成し、各障子の室内側下部に垂下片を設け、前記下枠の上面に前記垂下片を案内する案内溝を設け、各案内溝には各障子の垂下片との間を封止する横気密材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。
【０００３】
このサッシの場合、内障子の室内側下部に垂下片が設けられている構造上、下枠上面の戸車走行ラインを召し合せ部下部の気密ラインが横切るため、召し合せ部下部の気密、水密構造が複雑になる。特に戸車走行ラインには排水用の開口部を設けることができないので、気密ライン手前で確実に水を切ることが難しく、水密性の安定度が低い。
【０００４】
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。このサッシの場合、内障子の室外側下部に垂下片を設けているため、下枠上面における内障子の戸車走行ラインと召し合せ部下部の気密ラインとを分離することができ、召し合せ部下部の気密、水密構造を簡素化することが可能である。なお、縦枠には各障子の戸先部との間を封止する縦気密材が設けられる。
【０００５】
【特許文献１】
特開２００２-２２７５３７号公報
【０００６】
【発明が解決しようとする課題】
しかしながら、前記サッシの場合、内障子の室外側下部に垂下片を設けた構造上、内障子側の横気密材による横気密ラインと縦気密材による縦気密ラインとが離れてしまい、気密性を得ることが難しいという問題がある。
【０００７】
本発明は、前記事情を考慮してなされたもので、内障子側の横気密ラインと縦気密ラインとを連続させることができ、気密性の向上が図れる開口部装置を提供することを目的とする。
【０００８】
【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、該枠内に引違いに開閉可能に設けられた内外の障子とを備え、前記下枠の上面を略平坦面に形成し、内障子の室外側下部と外障子の室内側下部または室外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、各案内溝に閉鎖位置の各障子の垂下片との間を封止する横気密材を設けると共に、縦枠に各障子の戸先部との間を封止する縦気密材を設け、前記下枠の端部に内障子用の横気密材と縦気密材とを連結する下枠立上り気密部を設けると共に、前記内障子の戸先部下部に前記下枠立上り気密部に当接して下枠立上り気密部との間を封止する戸先部下部気密部を設けたことを特徴とする。
【０００９】
【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。
【００１０】
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内に左右方向にスライド開閉可能に取付けられた障子（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。
【００１１】
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。
【００１２】
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。
【００１３】
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。
【００１４】
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。
【００１５】
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。
【００１６】
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。
【００１７】
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ないし図１２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（図示省略）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。
【００１８】
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。
【００１９】
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。
【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６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。室内側から見て右側の縦枠２ｂには閉鎖時の内障子３の戸先部室内側に位置するフィン６０が設けられ、このフィン６０に内障子３の戸先部（戸先框）６ｄとの間を封止する縦気密材４６が設けられている。左側の縦枠２ｃには閉鎖時の外障子４の戸先部室内側に位置するフィン６１が設けられ、このフィン６１に外障子４の戸先部（戸先框）８ｄとの間を封止する縦気密材４９が設けられている。フィン６０，６１には縦気密材４６，４９を取付けるための取付溝が形成されている。
【００２５】
外障子側の第２横気密材４３と縦気密材４９とは略同じ垂直面上にあるため、第２横気密材４３の端部と縦気密材４９の下端部とが連結（接続）されている（すなわち、外障子側の横気密ラインと縦気密ラインとは連続している）のに対し、内障子側の第１横気密材４２と縦気密材４６とは異なる垂直面上にあるため、第１横気密材４２の端部と縦気密材４６の下端部とは室内外方向に離れている（すなわち、内障子側の横気密ラインと縦気密ラインとは連続していない）。そこで、内障子側の横気密ラインと縦気密ラインとを連続させるために、図４、図１１（ａ）、図１２〜図１５に示すように、前記下枠２ｂには内障子用の第１横気密材４２と縦気密材４６とを直接または間接的に連結する例えば軟質ゴム製の下枠立上り気密部４７が設けられると共に、前記内障子３の戸先部下部には閉鎖時に前記下枠立上り気密部４７に当接して下枠立上り気密部４７との間を封止する戸先部下部気密部（戸先框下部気密部）６２が設けられている。
【００２６】
本実施例では、室内側から見て右側の縦枠２ｄのフィン６０の下部には縦枠下部気密部材４８が前記縦枠気密材４６と連続するように取付けられており、この縦枠下部気密部材４８を介して前記下枠下部気密部４７が第１横気密材４２と縦気密材４６を間接的に連結している。前記縦枠下部気密部材４８は、主として、下枠２ｂと縦枠２ｄのフィン６０との繋ぎ目を封止する等のために設けられている。
【００２７】
前記下枠立上り気密部４７は、下枠２ｂの上面１２を形成するカバー材、すなわち内障子側室内側カバー材３７ａの端部に取付けられている。この下枠立上り気密部４７は、内障子側室内側カバー材３７ａの端部に当接されて室内側溝部３１を閉塞する本体部４７ａと、内障子側室内側カバー材３７ａの下部溝内に端部から嵌合される嵌挿部４７ｂと、下枠２ｂの上面１２から立上がった立上り部４７ｃとを有している。下枠立上り気密部４７は、嵌挿部４７ｂを内障子側室内側カバー材３７ａにネジ６３で止めることにより取付けられている。この下枠立上り気密部４７の立上り部４７ｃの内端面と前記戸先部下部気密部６２の外端面とが対向しており、内障子３を閉鎖した時に戸先部下部気密部６２の外端面が下枠立上り気密部４７の立上り部４７ｃの内端面に当接して両者の間を封止するようになっている。
【００２８】
前記戸先部下部気密部６２は内障子３の戸先框６ｄの下部にこれより下方に突出させた垂下部として設けられている。この戸先部下部気密部６２の少なくとも前記立上り部４７ｃと当接する部分はクッション材例えばスポンジからなり、戸先部下部気密部６２と立上り部４７ｃとの間に若干のラップ代をとってあり、スポンジを潰して気密性を確保するようになっている。また、内障子３の戸先框下部には、戸先部下部気密部６２よりも戸先側において下方に突出した例えば軟質ゴム製等の水切り部６４が設けられていることが好ましい。図１３の図示例では、水切り部６４の下端部が立上り部４７ｃの上面に接しているが、内障子３の高さ調整によっては水切り部６４の下端部が立上り部４７ｃの上面から離間する。
【００２９】
前記下枠立上り気密部４７およびその立上り部４７ｃの一端（室内側端面）は前記縦枠下部気密部材４８に常時接（密着）しており、下枠立上り気密部４７およびその立上り部４７ｃの他端（室外側端面）が閉鎖時の内障子３の室外側下部垂下片１７の内側面に接（密着）することにより気密ラインとして繋がるようになっている。また、前記戸先部下部気密部６２は一端が前記垂下片１７の内側面に接するようにして戸先框下面の幅方向（室内外方向）に略全長に設けられている。前記戸先部下部気密部６２と戸先框部分の垂下片１７とは戸先框６ｄの下端部に取付けられる戸先框下部ピースとして一体形成されていてもよい。
【００３０】
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。
【００３１】
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の略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。
【００３２】
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。
【００３３】
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。
【００３４】
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内に引違いに開閉可能に設けられた内外の障子３，４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を設け、各案内溝２０，２１に閉鎖位置の各障子３，４の垂下片１７，１８との間を封止する横気密材４２，４３を設けると共に、縦枠２ｃ、２ｄに各障子３，４の戸先部との間を封止する縦気密材４６，４９を設け、前記下枠２ｂの端部に内障子用の横気密材４２と縦気密材４６とを連結する下枠立上り気密部４７を設けると共に、前記内障子３の戸先部下部に前記下枠立上り気密部４７に当接して下枠立上り気密部４７との間を封止する戸先部下部気密部６２を設けているため、内障子側の横気密材４２による横気密ラインと縦気密材４６による縦気密ラインとが離れていても、これら横気密ラインと縦気密ラインとを簡単且つ確実に連続させることができ、気密性の向上が図れる。換言すれば、内障子３の戸先部下部の水密性の安定化が図れる。
【００３５】
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。
【００３６】
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。
【００３７】
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（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、前記実施例では外障子の室内側下部に垂下片が設けられている例が示されているが、外障子の室外側下部に垂下片が設けられていても良い。
【００３８】
【発明の効果】
以上説明したように本発明によれば、上下枠及び左右の縦枠からなる枠と、該枠内に引違いに開閉可能に設けられた内外の障子とを備え、前記下枠の上面を略平坦面に形成し、内障子の室外側下部と外障子の室内側下部または室外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、各案内溝に閉鎖位置の各障子の垂下片との間を封止する横気密材を設けると共に、縦枠に各障子の戸先部との間を封止する縦気密材を設け、前記下枠の端部に内障子用の横気密材と縦気密材とを連結する下枠立上り気密部を設けると共に、前記内障子の戸先部下部に前記下枠立上り気密部に当接して下枠立上り気密部との間を封止する戸先部下部気密部を設けているため、内障子側の横気密ラインと縦気密ラインとを連続させることができ、気密性の向上が図れる。
【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】内障子の戸先部下部の気密構造を示す斜視図である。
【図１３】同内障子の戸先部下部の気密構造を示す要部拡大断面図である。
【図１４】下枠上面に設けられた下枠立上り気密部を示す概略的斜視図である。
【図１５】同下枠立上り気密部を室外側から見た概略的斜視図である。
【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
３内障子
４外障子
１２下枠の上面
１７，１８垂下片
２０，２１案内溝
４２，４３横気密材
４６，４９縦気密材
４７下枠立上り気密部
６２戸先部下部気密部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening device, and more particularly, to an opening device in which the upper surface of a lower frame is formed as a substantially barrier-free flat surface and has a hanging piece at the lower outside of the outdoor side of a shoji.
[0002]
[Prior art]
As an opening device, for example, as described in Patent Document 1, a frame composed of upper and lower frames and left and right vertical frames provided in an outdoor opening of a building, and a door wheel on the lower frame in the frame Through which the sliding frame can be opened and closed by sliding in the left-right direction, and the upper surface of the lower frame is formed in a substantially flat surface, and a hanging piece is provided in the lower part on the indoor side of each sliding screen, A guide frame for guiding the hanging piece is provided on the upper surface of the lower frame flat sash with a barrier-free structure in which each guide groove is provided with a horizontal airtight material that seals between the hanging pieces of each shoji (on the upper surface of the lower frame). Known as non-rail sash because there is no protruding rail).
[0003]
In the case of this sash, since the hanging piece is provided in the lower part on the indoor side of the shoji, the airtight line at the lower part of the summing part crosses the door carriage traveling line on the upper surface of the lower frame. Becomes complicated. In particular, since the door running line cannot be provided with an opening for drainage, it is difficult to reliably drain water before the airtight line, and the stability of watertightness is low.
[0004]
On the other hand, as the lower frame flat sash, the present applicant has provided a hanging piece on the outside lower part of the inner shoji and the inside lower part of the outer shoji, and provided a guide groove for guiding each hanging piece on the upper surface of the lower frame. Proposed. In the case of this sash, a hanging piece is provided at the lower part of the outdoor side of the inner shoji, so the inner wheel running line of the inner shoji on the upper surface of the lower frame can be separated from the airtight line at the lower part of the summing part. It is possible to simplify the airtight and watertight structure. In addition, the vertical frame is provided with the vertical airtight material which seals between the door tips of each shoji.
[0005]
[Patent Document 1]
JP 2002-227537 A
[0006]
[Problems to be solved by the invention]
However, in the case of the sash, due to the structure in which a hanging piece is provided at the lower outside of the inner shingles, the horizontal airtight line by the horizontal airtight material and the vertical airtight line by the vertical airtight material on the inner hand side are separated, and the airtightness is reduced. There is a problem that it is difficult to obtain.
[0007]
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 in which the lateral airtight line and the vertical airtight line on the side of the inner tractor can be continuous, and the airtightness can be improved. To do.
[0008]
[Means for Solving the Problems]
The present invention comprises a frame composed of an upper and lower frame and left and right vertical frames, and inner and outer shojis provided so as to be openable and closable in the frame, and the upper surface of the lower frame is formed in a substantially flat surface. A hanging piece is provided at the lower outdoor side of the shoji and the lower indoor side or the lower outdoor side of the shoji, and a guide groove for guiding each hanging piece is provided on the upper surface of the lower frame, and the hanging piece of each shoji in the closed position is provided in each guide groove. A horizontal airtight material for sealing between the door and the door frame of each shoji is provided on the vertical frame, and a horizontal airtight material for internal shingles at the end of the lower frame. And a lower frame rising airtight portion that connects the vertical frame airtight material and a door tip that seals between the lower frame rising airtight portion by contacting the lower frame rising airtight portion at a lower portion of the door toe portion of the inner shingles It is characterized in that a lower part airtight part is provided.
[0009]
DETAILED DESCRIPTION OF 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 an indoor side 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 airtight structure, and FIGS. 5 and 6 are schematic perspective views for explaining the airtight structure in the lower part of the summon ridge. FIG. 7 is a vertical cross-sectional view of the main part of the opening device, and FIG. 8 is a cross-sectional view of the main part. FIGS. 9A and 9B are diagrams showing an example of a drain valve, where FIG. 9A is a cross-sectional view when draining, and FIG. 9B is a cross-sectional view when preventing backflow.
[0010]
1 to 3 and 7, reference numeral 1 denotes a lower frame flat sash (non-rail sash) which is an opening device, and this sash 1 is an upper and lower frame (upper frame and lower frame) attached to an outdoor opening of a building. 2a and 2b and left and right vertical frames 2c and 2d, and a shoji (sliding shoji in the embodiment) 3 and 4 attached to the frame 2 so as to be slidable in the left-right direction. A screen door 5 is attached to the outdoor side 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 aluminum extruded shape.
[0011]
The inner shoji 3 is made up of glass panels, for example, in an upper and lower cage (upper and lower cage) 6a, 6b made of an extruded aluminum material and left and right vertical rods (summing and door rods) 6c, 6d. 7 is attached. The external shoji 4 has a glass panel in a bowl 8 made of, for example, upper and lower bowls (upper and lower bowls) 8a and 8b made of an aluminum extruded shape, and left and right vertical bowls (summing and door fences) 8c and 8d. 9 is attached. Doors 10 and 11 are attached to the lower rods 6b and 8b, and the shojis 3 and 4 are supported on the upper surface 12 of the lower frame 2b through the doors 10 and 11 so as to be slidable. The door pulleys 10 and 11 are provided with a not-shown building adjustment mechanism for adjusting the height of the shojis 3 and 4.
[0012]
The upper surface 12 of the lower frame 2b is formed in a substantially flat surface, and a draining grating 13 and a deck portion 14 such as a balcony disposed on the outdoor side and a floor portion 15 on the indoor side are substantially horizontal with the upper surface 12 of the lower frame 2b. And has a barrier-free structure. A drainage groove 16 is provided under the grating 13. The portion of the upper surface 12 of the lower frame 2b where the doors 10 and 11 travel may be slightly concave to guide the doors 10 and 11.
[0013]
A hanging piece (first hanging piece) 17 is provided in the lower part of the outdoor side of the inner shoji (shoulder located on the indoor side) 3 over the entire length in the longitudinal direction. A drooping piece (second drooping piece 18) is provided in 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 and 21 for guiding the two hanging pieces 17 and 18 are provided on the upper surface 12 of the lower frame 2b over the entire length in the longitudinal direction of the lower frame. It has been. A door wheel 22 running on the upper surface 12 of the lower frame 2b is attached to the lower part of the screen door 5, a hanging piece 23 is provided on the lower surface of the screen door 5 along the entire length in the longitudinal direction, and the upper surface 12 of the lower frame 2b is A guide groove 24 for guiding the hanging piece 23 is provided.
[0014]
In addition, a partition wall 25 is provided in the lower frame 2b to partition the top and bottom, and a wide groove portion (first groove portion and second groove portion) 26 communicating with the respective guide grooves 20, 21 is provided above the partition wall 25. 27 is formed by three rising walls (first rising wall, second rising wall, and third rising wall) 28, 29, and 30 from the partition wall 25. In addition to the first groove portion 26 and the second groove portion 27, an indoor side groove portion 31 and an outdoor side groove portion 32 are formed at the upper portion of the partition wall 25 by the rising walls 28, 29, and 30. A lower portion of the partition wall 25 is a space portion 33, and the space portion 33 communicates with the outdoor drainage groove 16 through a drainage port 34 provided on the outdoor wall of the lower frame 2 b. Drain holes 35 and 36 are provided in the bottom portions (partition walls 25) of the first groove portion 26 and the second groove portion 27 so that the outdoor space communicates with the space portion 33 of the lower frame 2b rather than the closed shoji 3 and 4. It has been. In the illustrated example, the space portion 33 of the lower frame 2b is formed of a hollow portion (hollow portion), but is not limited thereto.
[0015]
In order to improve the cleanability of the first and second groove portions 26 and 27 having at least the upper part opened, the upper surface 12 of the lower frame 2b is viewed in a cross section as shown in FIG. The inner cover member, the intermediate cover member, and the outdoor cover member 37, 38, and 39 are detachable. The indoor side cover material 37 is formed so as to cover the upper surface of the indoor side groove portion 31, and supports the inner shoji 3 so as to be slidable. One side of the indoor cover member 37 is supported by the bottom of the indoor groove 31, and the other side is supported by the first rising wall 28. A mounting groove for a first laterally airtight material 42, which will be described later, is formed on the other side of the indoor cover material 37. The indoor cover member 37 is detachably attached to the partition wall (lower frame main body) 25 with a fixture, for example, a screw (screw) 40.
[0016]
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 cover material 39 is formed so as to cover the upper surface of the outdoor groove 32, and supports the outer sliding element 4 so as to be slidable. 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 wall (lower frame body) 25 together by a common attachment tool, for example, a screw (screw) 41.
[0017]
In order to allow the lower frame 2b to be easily cleaned without removing the shoji 3 and 4, as shown in FIGS. 11 to 12, the inner shoji 3 side (inner right side) is fixed with an indoor cover material 37a, The intermediate cover member 38a and the outdoor cover member 39a can be attached / detached, and the intermediate cover member 38b is fixed to the side of the external shoji 4 (inside left side), and the indoor cover member 37b and the outdoor cover member 39b can be attached / detached. The parts (37a, 38b) where the airtight material important in quality is present are fixed so that the airtightness and durability are not impaired. The right-side outdoor cover 39a and the intermediate cover 38a that are exposed when the shoji is moved to the left side (external hand side) (not shown) are detachably divided. ), The indoor side cover material 37b and the outdoor side cover material 39b exposed when (see FIG. 11B) are separated so as to be detachable.
[0018]
In other words, the indoor cover member 37 is divided into a pouch side indoor cover member 37a and a pouch side indoor cover member 37b, the pouch side indoor cover member 37a is always fixed, and the pouch side indoor cover member 37b is removable. It is said that. The intermediate cover member 38 is divided into an inner cover member 38a and an outer cover member 38b, the inner cover member 38a is removable, and the outer cover member 38b is always fixed. Yes. The outdoor cover material 39 is divided into an inner shroud side outer cover material 39a, an outer shroud side outdoor cover material 39b and an intermediate outer cover member 39c thereof, and the intermediate outer cover member 39c is always fixed, The cover member 39a and the outer cover side outdoor cover member 39b are detachable.
[0019]
The inner cover side intermediate cover material 38a, the inner cover side outdoor cover material 39a, the outer cover side cover material 37b and the outer cover side cover material 39b are hooked on the stoppers 53 and 58 and the end piece 57, and the other end. By stopping the screws with screws 40 and 41, the number of screws is reduced and the workability of the detaching operation is improved.
[0020]
Also, the screws 40 and 41 for fastening the other ends of the inner cover side intermediate cover member 38a, the inner cover side outdoor cover member 39a, the outer cover side indoor cover member 37b, and the outer cover member outdoor cover member 39b are shown in FIG. As shown in the figure, a locking portion 59 is provided in the middle, and when the screw heads 40a and 41a protrude upward from the upper surface of the cover material by loosening the screws 40 and 41, they come into contact with the lower surface of the cover material and screw 40, 41. To prevent pulling out. As a result, the screws 40, 41 are loosened and the screw heads 40a, 41a protruding from the upper surface of the cover material are picked up, thereby covering the cover material, specifically, the inner child side outdoor side cover material 39a, the outer obstacle side indoor side cover material 37b. In addition, the outer side cover member 39b can be easily removed from the lower frame body 25. As the locking member 59, for example, a nut or a C-ring can be applied.
[0021]
In order to airtightly block the indoor side and outdoor side of the sash 1, it is important how to form a continuous airtight line (also called a water stop line) between the frame 2 and the shoji 3 and 4 when closed. It becomes. In the present embodiment, as shown in FIGS. 4 to 6, the lower frame 2 b is soft between the hanging pieces 17, 18 of the closed shoji 3, 4 and the indoor side edges of the guide grooves 20, 21. Resin side airtight materials (first side airtight material and second side airtight material) 42 and 43 are provided. The horizontal airtight materials 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 are in contact with the horizontal airtight materials 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 summons 6c and 8c of the shoji 3 and 4 in the closed position, and the first guide of the lower frame 2b. It is arranged at the upper part of the second rising wall 29 and the summit lower water blocking block 44 made of soft resin, which is arranged at the substantially central part in the longitudinal direction (position of the summon bowl) in the first groove part 26 including the groove 20. Further, the lower frame windshield member 56 is connected to a resin-made summing airtight piece 45 (summing the summing lower groove) provided at the end of the summing rod 6c of the inner shoji 3. The summoning lower water blocking block 44 divides the left and right sides of the first guide groove 20 into an indoor space and an outdoor space. The summoning lower water blocking block 44 has an upper water blocking portion 44 a that is attached to the airtight material mounting groove and disposed in the first guide groove 20 in the same manner as the first horizontal airtight material 42.
[0023]
The first horizontal airtight member 42 is attached to the inner side cover member 37a which is the fixed side, and the second horizontal airtight member 43 is attached to the outer cover side intermediate cover member 38b which is the fixed side. As a result, even if the inner shroud side intermediate cover material 38a, the inner shroud side outdoor cover material 39a, the outer shroud side indoor cover member 37b and the outer shroud side outdoor cover member 39b are removed, the side airtight members 42 and 43 are cut in the middle. And the joints between the longitudinal airtight members 46 and 49 are not broken, and the airtightness and durability can be improved.
[0024]
The lower end portion of the summing airtight piece 45 is formed in a shape corresponding to the upper surface 12 of the lower frame 2 b, and is suspended in the first guide groove 20 in the same manner as the drooping piece 17 and comes into contact with the summoning lower portion water stop block 44. A hanging piece 45a is provided. The summing airtight piece 45 is attached so that the height can be adjusted (the building can be adjusted). The right vertical frame 2b when viewed from the indoor side is provided with a fin 60 located on the indoor side of the door tip portion of the inner shuffle 3 at the time of closing. A vertical airtight material 46 is provided for sealing between the two. The left vertical frame 2c is provided with a fin 61 located on the indoor side of the door tip portion of the external shoji 4 when closed, and the fin 61 is sealed between the door tip portion (door tip rod) 8d of the external door 4. A vertical airtight material 49 is provided. The fins 60 and 61 are formed with mounting grooves for mounting the vertical airtight members 46 and 49.
[0025]
Since the second horizontal airtight material 43 and the vertical airtight material 49 on the side of the shoji are on substantially the same vertical plane, the end of the second horizontal airtight material 43 and the lower end of the vertical airtight material 49 are connected (connected). (That is, the lateral airtight line and the longitudinal airtight line on the side of the external obstacle are continuous), whereas the first horizontal airtight material 42 and the longitudinal airtight material 46 on the internal obstacle side are on different vertical planes. Therefore, the end portion of the first horizontal airtight material 42 and the lower end portion of the vertical airtight material 46 are separated from each other in the indoor / outdoor direction (that is, the lateral airtight line and the vertical airtight line on the side of the inner limb are not continuous). Therefore, in order to make the lateral airtight line and the longitudinal airtight line on the inner hand side continuous, as shown in FIG. 4, FIG. 11 (a), and FIGS. 1. A bottom frame rising airtight portion 47 made of, for example, soft rubber is provided to connect the horizontal airtight material 42 and the vertical airtight material 46 directly or indirectly. A door-end lower airtight portion (door-end heel lower air-tight portion) 62 that contacts the frame rising air-tight portion 47 and seals between the frame rising air-tight portion 47 is provided.
[0026]
In the present embodiment, a vertical frame lower hermetic member 48 is attached to the lower part of the fin 60 of the right vertical frame 2d as viewed from the indoor side so as to be continuous with the vertical frame hermetic material 46. The lower frame lower airtight portion 47 indirectly connects the first horizontal airtight material 42 and the vertical airtight material 46 via the member 48. The vertical frame lower airtight member 48 is provided mainly for sealing a joint between the lower frame 2b and the fin 60 of the vertical frame 2d.
[0027]
The lower frame rising airtight portion 47 is attached to an end portion of a cover material that forms the upper surface 12 of the lower frame 2b, that is, the inner shroud side indoor cover material 37a. The lower frame rising airtight portion 47 has a main body portion 47a that is in contact with an end portion of the inner shroud side indoor cover member 37a and closes the indoor groove portion 31, and an end portion in a lower groove of the inner shroud side indoor cover member 37a. And a rising portion 47c rising from the upper surface 12 of the lower frame 2b. The lower frame rising airtight portion 47 is attached by fastening the fitting insertion portion 47b to the inner side cover member 37a with the screw 63. The inner end surface of the rising portion 47c of the lower frame rising hermetic portion 47 and the outer end surface of the lower door portion lower airtight portion 62 face each other, and the outer end surface of the lower airtight portion 62 of the door tip portion when the inner shoji 3 is closed. Is in contact with the inner end face of the rising portion 47c of the lower frame rising airtight portion 47 so as to seal between the two.
[0028]
The door part lower airtight part 62 is provided as a hanging part projecting downward from the lower part of the door rod 6d of the inner shoji 3. A portion of the door-end portion lower airtight portion 62 that comes into contact with at least the rising portion 47c is made of a cushion material such as a sponge, and a slight lap is taken between the door-end portion lower airtight portion 62 and the rising portion 47c. The sponge is crushed to ensure airtightness. Moreover, it is preferable that a draining portion 64 made of, for example, soft rubber or the like that protrudes downward on the door-end side of the door-end portion lower airtight portion 62 is provided at the lower portion of the door-end heel of the inner shoji 3. In the illustrated example of FIG. 13, the lower end portion of the draining portion 64 is in contact with the upper surface of the rising portion 47 c, but the lower end portion of the draining portion 64 is separated from the upper surface of the rising portion 47 c depending on the height adjustment of the inner shoji 3.
[0029]
The lower frame rising hermetic portion 47 and one end (inner side end surface) of the rising portion 47c are always in contact with (adhering to) the vertical frame lower airtight member 48, and other than the lower frame rising airtight portion 47 and its rising portion 47c. The end (outside end face) is connected as an airtight line by contacting (intimately contacting) the inner side face of the outside lower hanging piece 17 of the inner shoji 3 when closed. Further, the door-end lower-hermetic portion 62 is provided with a substantially full length in the width direction (indoor / outdoor direction) of the lower surface of the door-end rod so that one end thereof is in contact with the inner side surface of the hanging piece 17. The door tip lower airtight portion 62 and the hanging piece 17 of the door tip flange portion may be integrally formed as a door tip flange lower piece attached to the lower end of the door tip flange 6d.
[0030]
Since airtightness inside and outside of the room is ensured in this way, the temperature difference between the room and the outside becomes large in winter and the like, and condensation water may be generated on the indoor surface of the shoji 3 and 4. Condensed water generated on the inside falls from the indoor side lower part (lower edge part) 50 of the inner shoji 3 to the upper surface 12 of the lower frame 2b. In order to prevent the condensed water falling on the upper surface 12 of the lower frame 2b from flowing into the room, in other words, in order to drain the condensed water outside the room while maintaining the airtightness inside and outside the room, the lower frame 2b A shallow water receiving groove 51 for receiving condensed water falling from the indoor lower part (lower edge part) 50 of the inner shoji 3 is provided on the upper surface 12 of the inner frame 3 over the entire length in the longitudinal direction of the lower frame 2b. A drain valve 52 is provided for draining water from the receiving groove 51 to the space 33 in the lower frame 2b that communicates with the outside of the room, and the condensed water is drained from the indoor side to the outside through the drain valve 52. It has become. A lower part (also referred to as a hanging piece) 50 on the indoor side of the shoji 3 is directly above the water receiving groove 51.
[0031]
Preferably, as shown in FIGS. 7 to 8, the water receiving groove 51 is provided on the upper surface 12 of the lower frame 2 b and the inner opening 3 is restricted to one end of the water receiving groove 51. A stopper 53 is provided, and a drainage valve 52 is provided for draining from the portion hidden by the stopper 53 for inner impingement of the water receiving groove 51 to the space portion 33 in the lower frame 2 b communicating with the outside of the room. In the present embodiment, a drain hole 54 is provided in a portion of the water receiving groove 51 that is hidden by the stopper 53 for the shingles, and a drain valve 52 is attached to the partition wall 25 of the indoor side groove portion 31 below the water receiving groove 51. Yes. The lower part (lower edge part) 50 on the indoor side of the inner shuffle 3 is provided over substantially the entire length of the inner shunt 3 along the longitudinal direction of the lower collar 6b (in the case of a longitudinal collar, the longitudinal collar 6c, 6d Including the lower end on the indoor side). It is preferable that the indoor side lower part (lower edge part) 50 of the inner impeller 3 is close to the water receiving groove 51 in that the design can be improved by concealing the door wheel 10.
[0032]
The drain valve 52 is attached to an opening 55 provided in the partition wall 25 of the lower frame 2b as shown in FIGS. 9A and 9B, for example, and is attached to the main body 52a so as to be openable and closable. It is mainly comprised from the valve body 52b. Normally, as shown in FIG. 9 (a), condensed water is drained from a gap 52c in which the valve body 52b is opened downward. However, as shown in FIG. 9 (b), the valve body is caused by wind pressure from the outdoor side. 52b closes upward to prevent back flow of water.
[0033]
On the other hand, as shown by the broken line in FIG. 8, the end portion of the first rising wall 28 is notched and the first groove portion 26 and the indoor side groove portion 31 communicate with each other, so Condensed water flowing from the indoor surface through the hanging piece 18 to the upper surface 12 of the lower frame 2b and flowing into the first groove portion 26 from the first guide groove 20 passes through the drain valve 52 of the indoor groove portion 31 from the first groove portion 26. Thus, the water is drained to the outside through the drain valve 52.
[0034]
According to the sash 1 having the above-described configuration, 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 openable and closable. The lower frame 2a is formed to have a substantially flat upper surface, and hanging pieces 17 and 18 are provided on the lower outer side of the inner sward 3 and the lower side of the inner side of the outer sward 4, respectively. Guide grooves 20, 21 for guiding the pieces 17, 18 are provided, and horizontal airtight materials 42, 43 are provided in each guide groove 20, 21 to seal between the hanging pieces 17, 18 of the shoji 3, 4 in the closed position. In addition, the vertical frames 2c and 2d are provided with vertical airtight materials 46 and 49 for sealing between the doors of the respective shojis 3 and 4, and the end portion of the lower frame 2b is provided with a lateral airtight material 42 for internal shingles. And a lower frame rising airtight portion 47 that connects the vertical airtight material 46 and the lower frame rising airtight portion at the lower part of the door tip portion of the inner shoji 3. 47 is provided with a lower airtight portion 62 that contacts the lower frame rising airtight portion 47 and seals the lower frame rising airtight portion 47. Even if the airtight line is separated from the airtight line, the horizontal airtight line and the vertical airtight line can be easily and reliably continued, and the airtightness can be improved. In other words, it is possible to stabilize the water tightness of the lower part of the door tip of the inner shoji 3.
[0035]
Further, the upper surface of the lower frame 2b is constituted by the indoor side cover material 37, the intermediate cover material 38, and the outdoor side cover material 39, and the first side airtight material 42 corresponding to the hanging piece 17 of the inner shoji 3 on the indoor side cover material 37. The intermediate cover member 38 is provided with a second laterally airtight member 43 corresponding to the hanging piece 18 of the outer shoji 4, the inner cover member 37 a is fixed to the inner cover member side, and the intermediate cover member 38 a and the outdoor cover member 39 a are fixed. The outer cover side is fixed to 38b and the indoor cover member 37b and the outdoor cover member 39b are removable, so that the cover material on the upper surface of the lower frame is not impaired. 38a, 39a, 38b, 37b can be removed and the lower frame 2b can be easily cleaned. In this case, since the intermediate cover member 38a and the outdoor cover member 39a on the inner shoji side are fastened together with a common fixture, for example, the screw 41, the detaching operation can be easily performed in a short time, and the workability can be improved.
[0036]
A shallow water receiving groove 51 for receiving condensed water falling from the lower part 50 on the indoor side of the inner shoji 3 is provided on the upper surface 12 of the lower frame 2b, and a space portion 33 in the lower frame 2b communicating with the outdoor from the water receiving groove 51. A drainage valve 52 is provided for draining water, and the dew condensation water is drained from the indoor side to the outdoor side through the drainage valve 52, so that it falls from the indoor side lower part 50 of the shoji 3 to the upper surface 12 of the lower frame 2b. It is possible to prevent the condensed water from flowing into the room and getting wet in the room. Further, since the drainage portion (including the drainage hole 54) such as the drainage valve 52 is hidden by the stopper 53 for the inner cot, and the drainage valve 52 and the drainage hole 54 that are the drainage portion are not exposed, the design can be improved. The drain valve 52 can prevent the wind from entering the room from the outside or the backflow of water from the outside, and can prevent the condensed water inside the room while keeping the air-tightness (including water-tightness) inside and outside the room. It can drain smoothly. Moreover, since the water receiving groove 51 provided on the indoor upper surface of the lower frame 2b is shallow, it can be easily cleaned and has a good appearance (design).
[0037]
Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments (examples), and various design changes can be made without departing from the gist of the present invention. Etc. are possible. For example, in the above-described embodiment, an example in which a hanging piece is provided in the lower part on the indoor side of the shoji is shown, but a hanging piece may be provided in the lower part on the outer side of the shoji.
[0038]
【The invention's effect】
As described above, according to the present invention, the frame includes the upper and lower frames and the left and right vertical frames, and the inner and outer shojis provided in the frame so as to be openable and closable, and the upper surface of the lower frame is substantially omitted. It is formed on a flat surface, and a hanging piece is provided on the lower outdoor side of the inner shoji and the lower indoor side or lower outer side of the shoji, and a guide groove for guiding each hanging piece is provided on the upper surface of the lower frame, and each guide groove is closed. A horizontal airtight material that seals between the hanging pieces of each shoji at the position is provided, and a vertical airtight material that seals between the door tips of each shoji is provided in the vertical frame, and at the end of the lower frame A lower frame rising airtight portion for connecting a lateral airtight material and a vertical airtight material for inner impellers is provided, and a lower frame rising airtight portion is in contact with the lower frame rising airtight portion at a lower part of the door tip portion of the inner impeller. Because the door part lower airtight part that seals the gap is provided, the horizontal airtight line and the vertical airtight line on the side of the shoji can be made continuous Improvement of air-tightness can be achieved.
[Brief description of the drawings]
FIG. 1 is a front view of an indoor side 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. 1;
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 the summon bowl.
FIG. 6 is a schematic perspective view for explaining an airtight structure of the lower part of the summon bowl.
FIG. 7 is a longitudinal sectional view of a main part of the opening device.
FIG. 8 is a cross-sectional view of the relevant part.
FIGS. 9A and 9B are diagrams showing an example of a drain valve, in which FIG. 9A is a cross-sectional view when draining, and FIG. 9B is a cross-sectional view when preventing backflow.
FIGS. 10A and 10B are diagrams illustrating a state where the cover material is attached, FIG. 10B is a diagram illustrating a state where the screw is loosened, and FIG. 10C is a diagram illustrating a state where the cover material is attached.
FIG. 11A is a diagram showing a state of division 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 with the shoji moved to the right side.
FIG. 12 is a perspective view showing an airtight structure of a lower part of a door tip portion of a shoji.
FIG. 13 is an enlarged cross-sectional view of a main part showing an airtight structure of the lower part of the door toe of the same shoji.
FIG. 14 is a schematic perspective view showing a lower frame rising airtight portion provided on the upper surface of the lower frame.
FIG. 15 is a schematic perspective view of the lower frame rising hermetic portion as viewed from the outdoor side.
[Explanation of symbols]
1 Sash (opening device)
2 frames
2a Upper frame
2b Bottom frame
2c, 2d vertical frame
3 inner children
4 external shoji
12 Upper surface of lower frame
17, 18
20, 21 guide groove
42,43 Horizontal airtight material
46, 49 Longitudinal airtight material
47 Lower frame rising airtight part
62 Lower airtight part of door toe

Claims

A frame composed of upper and lower frames and left and right vertical frames, and inner and outer shojis that are openable and closable in the frame, and the upper surface of the lower frame is formed in a substantially flat surface, A hanging piece is provided in the lower part and the lower part on the indoor side or outside the outdoor part of the shoji screen, a guide groove for guiding each hanging piece is provided on the upper surface of the lower frame, and a gap between each hanging piece of the shoji in the closed position is provided in each guide groove. In addition to providing a horizontal airtight material for sealing, a vertical frame is provided with a vertical airtight material that seals between the door tips of each shoji, and the lower frame is connected to the horizontal airtight material for the shoji and the vertical airtight material. A lower frame rising airtight portion is provided, and a door tip lower airtight portion that contacts the lower frame rising airtight portion and seals with the lower frame rising airtight portion is provided at the lower portion of the door tip portion of the inner limb. An opening device characterized by that.