【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召し合せ框下部の止水構造を改良した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スライド開閉可能に設けられた引違い障子とを備え、前記下枠の上面を略平坦面に形成し、内外の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】
【特許文献１】
特開２００２-１９４９６３号公報
【０００４】
【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、内障子の室内側下部に垂下片が設けられている構造上、下枠上面の内障子用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構造となるため、召し合せ部下部の気密構造（水密構造を含む）が複雑になる。特に、内障子の召し合せ框の下部には下枠のフラット面に弾性材を介して当接する召し合せ止水ブロックが設けられ、その弾性材が障子開閉時に常に下枠のフラット面と擦れているため、弾性材の磨耗による耐久性の低下や気密性（止水性を含む）の低下を招くだけでなく、障子の開閉が重くなり開閉操作性の低下を招き易い。
【０００５】
本発明は、前記事情を考慮してなされたもので、気密性、耐久性及び開閉操作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。
【０００６】
【課題を解決するための手段】
本発明のうち、請求項１の発明は、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されていることを特徴とする。
【０００８】
請求項２の発明は、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されており、前記風止部材が内障子の召し合せ框の下部室外面に設けられた気密ピースの下面に弾性で接する複数枚のヒレ状の第２気密片を有していることを特徴とする
【０００９】
請求項３の発明は、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されており、前記風止部材が内障子の召し合せ框の下部室外面に設けられた気密ピースの下面に弾性で接する複数枚のヒレ状の第２気密片と、前記内障子の垂下片の室外面に弾性で接する第３気密片とを有していることを特徴とする。
【００１０】
【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、図４は下枠の平面図である。図５は下枠の拡大横断面図、図６は気密構造を説明するための概略的斜視図、図７は下枠上面に設けられた下枠立上り気密部を示す斜視図、図８は内障子の戸先部下部の気密構造を示す斜視図、図９は召内框下部の風止部材による気密構造を説明するための概略的斜視図、図１０は召内框下部の止水ブロックによる気密構造を説明するための概略的斜視図である。
【００１１】
これらの図において、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の室外側には図示しない網戸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。
【００１２】
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。図示例の障子３，４は中間横框を６ｅ，８ｅ有している。
【００１３】
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。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。
【００１４】
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。
【００１５】
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。前記下枠２ｂの隔壁２５及び中間カバー材３９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。
【００１６】
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５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の断面略Ｃ字状の取付溝４２ａ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。
【００１７】
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の断面略Ｃ字状の取付溝４３ａ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。
【００１８】
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４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。
【００１９】
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。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】
サッシ１の室内側と室外側を気密に遮断するために、また、下枠上面が平坦面であるがゆえに浸入しやすい雨水の浸入を防止するために、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、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４２ａ，４３ａ）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。
【００２１】
垂下片１７，１８は各障子の下部に長手方向全長に設けられている。具体的には、各障子の縦框の下端部には、例えば内障子の場合、図８ないし図１６に示すような振れ止め部材４４，４５が取付けられ、振れ止め部材４４，４５には内障子の下框６ｂに設けられた垂下片１７と連続する垂下片部１７ａが形成されている。なお、図８の振れ止め部材４４は内障子３の戸先框６ｄの下端部に取付けられ、図１６の振れ止め部材４５は内障子３の召し合せ框（召内框）６ｃの下端部に取付けられている。
【００２２】
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。
【００２３】
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、その切断箇所で第１横気密材と第２横気密材をつないで気密ラインを連続させるために、図４、図５、図９〜図１３に示すように障子閉鎖時の内障子の召し合せ框（召内框ともいう）下方における室内側案内溝２０内（具体的には第１案内溝２０を含む第１溝部２６、以下同様）と室内外両案内溝２０，２１間とに、室内側案内溝内を室外側と室内側とに仕切る例えば軟質樹脂製の止水ブロック６０と、内障子３の垂下片１７と外障子４の垂下片１８との間を塞ぐ例えば軟質樹脂製の風止部材７０とが設けられている。
【００２４】
止水ブロック６０は、第１溝部２６に嵌合される本体部６０ａを有し、この本体部６０ａの上部には前記第１気密材４２と連続して第１気密材４２と同様の作用をする上部気密部６０ｂが一体的に設けられている。この上部気密部６０ｂの正面部（室外面）が内障子３の垂下片１７（垂下片部１７ａを含む、以下同様。）の室内面に接して垂下片１７との間を封止するようになっている。封止性能を上げるために、上部気密部６０ｂの正面部には正面略田状に仕切られた複数の凹部６１が設けられている。前記上部気密部６０ｂの背面部を第１案内溝２０の室内側縁部に取付けるために、背面部には気密材取付溝４２ａに係合される横断面略Ｔ字状の係合部６２が形成されている。上部気密片部６０ｂの正面部一側には、召内框下部振れ止め部材４５の垂下片部１７ａの円滑な移動を保証するためにテーパー６３が設けられていることが好ましい。
【００２５】
前記止水ブロック６０は、内障子３の垂下片１７の下端面に弾性で接する複数枚（例えば４枚）のヒレ状の第１気密片６４を有している。これら第１気密片６４は第１案内溝２０の長手方向に直交するようにして上向きに上向きに突出（起立）して配置されると共に、第１案内溝２０の長手方向に適宜間隔で配置される。前記止水ブロック６０は、第１気密片６４の独立した動きを確保するために図１５にも示すように前記第１気密片６４を有する気密片部６５と、該気密片部６５を取付ける本体部６ａとの２部材で構成されている。本体部６０ａに対する気密片部６５の取付け（組立作業）を容易にするために、本体部６０ａには気密片部６５の下部に形成した係合部６６を一側方から係合させる係合溝６７が形成されていると共に、係合部６６の底面に突設した抜け止め用突起部６８が係合する係合孔６９が設けられている。抜け止め用突起部６８の端部には係合孔６９に係合し易く且つ抜け難いようにテーパー６８ａが設けられていることが好ましい。
【００２６】
第１気密片６４は図１０に示すように閉鎖時の内障子３の召し合せ框下部振れ止め部材４５の垂下片部１７ａが止水ブロック６０の本体部６０ａの上方に位置したときに弾性で湾曲しながら垂下片部１７ａの下端面に接し、止水ブロック６０の本体部６０ａと垂下片部１７ａの下端面との間を封止し、弾性で湾曲するように柔軟性を有していることにより摩擦抵抗及び磨耗を低減している。また、第１気密片６４が一側の上部気密部６０ｂから独立している（切り離されている）ことにより、偏った弾性変形を防止して、独立した弾性変形を確保することができ、気密性の向上が図れるようになっている。
【００２７】
一方、前記風止部材７０は、図５、図９〜図１４にも示すように中間カバー材３８の第２立上り壁２９上に取付けられている。立上り壁２９は排水孔３５の位置で切断されており、その切断された縦上り壁２９の端部に気密材取付溝４３ａを利用して取付けられている。風止部材７０は、第２気密材４３の端部と連続する本体部７０ａを有し、この本体部７０ａの裏面部に気密材取付溝４３ａに係合する横断面略Ｔ字状の係合部７１が形成されている。風止部材７０の本体部７０ａは、第２案内溝２１の室内側溝壁から第２立上り壁２９の上部までの所定高さ及び前記止水ブロック６０と略同じ長さを有している。この本体部７０ａの正面部（室外面）が外障子４の垂下片１８（振れ止め部材の垂下片部を含む、以下同様。）の室内面に接して垂下片１８との間を封止するようになっている。封止性能を上げるために、本体部７０ａの正面部には正面略田状に仕切られた複数の凹部７２が設けられている。
【００２８】
前記風止部材７０は、内障子３の召し合せ框６ｃの下部室外面に設けられた気密ピース８０の下面に弾性で接する複数枚例えば６枚のヒレ状の第２気密片７３を有している。これら第２気密片７３は第２立上り壁２９ないし本体部７０ａの長手方向に直交するようにして上向きに突出（起立）して配置されると共に、本体部７０ａの長手方向に適宜間隔で配置される。第２気密片７３は図９に示すように閉鎖時の内障子３の召し合せ框下部室外面の気密ピース８０が風止部材７０の上方に位置したときに弾性で湾曲しながら気密ピース８０の下端面に接し、内外障子３，４の召し合せ框下部垂下片部１７ａ（外障子側垂下片部は図示省略）間の隙間における風止部材７０の本体部７０ａと気密ピース８０の下端面との間を封止し、弾性で湾曲するように柔軟性を有していることにより摩擦抵抗及び磨耗を低減している。
【００２９】
前記気密ピース８０は、図１７に示すように形成された発泡樹脂（スポンジ）からなり、内障子３の召し合せ框６ｃの下部室外面に両面粘着テープ等で貼り付け固定されている。この気密ピース８０の室外面が障子閉鎖時の外障子４の召し合せ框（召外框）８ｃの室内面に接し、気密ピース８０が内障子３の召し合せ框６ｃの室外面に設けられた召し合せ気密材８５と接していることにより、前記止水ブロック６０及び風止部材７０と共に第１気密材４２と第２気密材４３による横気密ラインをつないでいると共に、この横気密ラインと召し合せ気密材８５による縦気密ラインをつないでいる。
【００３０】
また、前記風止部材７０は、障子閉鎖時に前記内障子３の垂下片１７（具体的には召内框下部振れ止め部材４５の垂下片部１７ａ）の室外面に弾性で接するヒレ状の第３気密片７４を有している。具体的には、封止部材７０の本体部７０ａにおける６枚の第２気密片７３のうちの端部側の２枚の第２気密片７３を有する部分が第２立上り壁２９の切断部よりも突出しており、その突出部分７５の室内面に２枚の第３気密片７４が前記２枚の各第２気密片７３とつながった状態で設けられている。第３気密片７４は閉鎖時の内障子３の召し合せ框下部振れ止め部材４５の垂下片部１７ａの室外面に弾性で接するように室内側に突出して設けられている。
【００３１】
この場合、第３気密片７４に柔軟性をもたせるべくその突出長さを長くするために、本体部７０ａの突出部分７５の室内面には凹部７６が形成されている。前記召内框下部振れ止め部材４５の垂下片部１７ａの室外面は図１８に示すように下框６ｂの垂下片１７の室外面よりも室外側若干例えば１〜２ｍｍ程度突出して形成されており、内障子３の閉鎖時には（ａ）に示すように第３気密片７４が垂下片部１７ａの室外面に弾性で湾曲した状態で接し、内障子３の開放時には（ｃ）に示すように第３気密片７４の先端部が下框６ｂの垂下片１の室外面から離れ、開閉操作時の抵抗にならないようになっている。
【００３２】
また、前記第３気密片７４は、その長さを長くしたことにより、（ｂ）に示すようにたとえ内障子３が風圧で室内側に移動したとしても第３気密片７４の先端部が振れ止め部材４５の垂下片部１７ａの室外面から離れることがなく、気密性の向上が図れている。前記止水ブロック６０における４枚の第１気密片６４のうちの端部側の１枚の第１気密片６４ａは、前記２枚の第３気密片７４間の凹部７６の底部に接するように室外側に延出されており、止水ブロック６０と風止部材７０との間に隙間が発生しないようにしている。
【００３３】
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７ないし図８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６２が設けられている。
【００３４】
本実施例では、室内側から見て右側の縦枠２ｄのフィン５９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を介して前記下枠立上り気密部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。
【００３５】
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、カバー材３７ａの端部上面より立上っている。この下枠立上り気密部４７の立上り部の内端面と前記戸先部下部気密部５４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５４の外端面が下枠立上り気密部４７の立上り部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。
【００３６】
前記戸先部下部気密部５４は内障子３の戸先框６ｄの下部に取付けた振れ止め部材４４の下部に垂下部として設けられている。この戸先部下部気密部５４の少なくとも前記下枠立上り気密部４７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５４と下枠立上り気密部４７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５４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５５が設けられていることが好ましい。
【００３７】
前記下枠立上り気密部４７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の他端（室外側端面）が閉鎖時の内障子３の戸先框下部振れ止め部材４４の室外側垂下片部１７ａ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５４は一端が前記垂下片部１７ａ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。
【００３８】
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。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（図示省略）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。
【００３９】
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を形成し、各案内溝２０，２１に各垂下片１７，１８と対応する横気密材４２，４３を設けてなるため、内障子の室外側下部に垂下片を設けた従来のサッシと異なり下枠上面１２における内障子３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できる。特に、障子閉鎖時の内障子３の召し合せ框６ｃ下方における室内側案内溝２０内と室内外両案内溝２０，２１間とに、室内側案内溝２０内を室外側と室内側とに仕切る止水ブロック６０と、内障子３の垂下片１７と外障子４の垂下片１８との間を塞ぐ風止部材７０とを設け、前記止水ブロック６０が内障子３の垂下片１７の下端面に弾性で接するヒレ状の第１気密片６４を有しているため、召し合せ下部における気密性、耐久性及び開閉操作性の向上が図れる。
【００４０】
すなわち、前記止水ブロック６０に設けた第１気密片６４が弾性で湾曲するように柔軟性を有して内障子３の垂下片１７の下端面に接しているため、摩擦抵抗及び磨耗を低減することができ、第１気密片６４の耐久性の向上が図れると共に障子の開閉操作が楽になり、開閉操作性の向上が図れる。また、前記止水ブロック６０が内障子３の垂下片１７の下端面に弾性で接するヒレ状の第１気密片６４を有する気密片部６５と、該気密片部６５を取付ける本体部６０ａとの２部材で構成されているため、第１気密片６４の独立した弾性変形を確保することができ、第１気密片６４の偏った弾性変形による気密不良を防止することができ、気密性の更なる向上が図れる。
【００４１】
更に、前記風止部材７０が内障子３の召し合せ框６ｃの下部室外面に設けられた気密ピース８０の下面に弾性で接するヒレ状の第２気密片７３を有し、該第２気密片７３が弾性で湾曲するように柔軟性を有して気密ピース８０の下面に接しているため、摩擦抵抗及び磨耗を低減することができ、第２気密片７３の耐久性の向上が図れると共に障子の開閉操作が楽になり、開閉操作性の向上が図れる。前記風止部材７０が前記内障子３の垂下片１７の室外面に弾性で接するヒレ状の第３気密片７４を有し、該第３気密片７４が弾性で湾曲するように柔軟性を有して内障子３の垂下片１７の室外面に接しているため、摩擦抵抗及び磨耗を低減することができ、第３気密片７４の耐久性の向上が図れると共に障子の開閉操作が楽になり、開閉操作性の向上が図れる。
【００４２】
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。実施例では、カバー材の戸車走行面が戸車の形状に合せて凹面に形成されているが、凸面に形成されていても良い。
【００４３】
【発明の効果】
以上要するに本発明によれば、次のような効果を奏することができる。
【００４５】
（１）請求項１の発明によれば、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されているため、第１気密部片の独立した弾性変形を確保できると共に止水ブロックの組立性の向上が図れ、気密性、耐久性及び開閉操作性の向上が図れる。
【００４６】
（２）請求項２の発明によれば、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されており、前記風止部材が内障子の召し合せ框の下部室外面に設けられた気密ピースの下面に弾性で接する複数枚のヒレ状の第２気密片を有しているため、第１気密部片の独立した弾性変形を確保できると共に止水ブロックの組立性の向上が図れ、且つ第２気密片の耐久性の向上が図れ、気密性、耐久性及び開閉操作性の向上が図れる。
【００４７】
（３）請求項３の発明によれば、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形成し、各案内溝に各垂下片と対応する横気密材を設け、障子閉鎖時の内障子の召し合せ框下方における室内側案内溝内と室内外両案内溝間とに、室内側案内溝内を室外側と室内側とに仕切る止水ブロックと、内障子の垂下片と外障子の垂下片との間を塞ぐ風止部材とを設け、前記止水ブロックが案内溝内に嵌合される本体部と、内障子の垂下片の下端面に弾性で接する複数枚のヒレ状の第１気密片を有する気密片部との２部材で構成され、前記本体部の上部には上記横気密材と連続して該横気密材と同様の作用をする上部気密部が一体的に設けられ、前記本体部には前記気密片部の下部に形成した係合部を一側方から係合する係合溝が形成されており、前記風止部材が内障子の召し合せ框の下部室外面に設けられた気密ピースの下面に弾性で接する複数枚のヒレ状の第２気密片と、前記内障子の垂下片の室外面に弾性で接する第３気密片とを有しているため、第１気密部片の独立した弾性変形を確保できると共に止水ブロックの組立性の向上が図れ、且つ第２気密片及び第３気密片の耐久性の向上が図れ、気密性、耐久性及び開閉操作性の向上が図れる。
【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】下枠の平面図である。
【図５】下枠の拡大横断面図である。
【図６】気密構造を説明するための概略的斜視図である。
【図７】下枠上面に設けられた下枠立上り気密部を示す斜視図である。
【図８】内障子の戸先部下部の気密構造を示す斜視図である。
【図９】召内框下部の風止部材による気密構造を説明するための概略的斜視図である。
【図１０】召内框下部の止水ブロックによる気密構造を説明するための概略的斜視図である。
【図１１】下枠上面における止水ブロック及び風止部材の取付構成を示す概略的平面図である。
【図１２】図１１の斜視図である。
【図１３】図１２を室外側から見た斜視図である。
【図１４】風止部材を示す図で、（ａ）は室内側から見た斜視図、（ｂ）は室外側から見た斜視図である。
【図１５】止水ブロックの組立て方法を説明する説明図である。
【図１６】召内框下部の触れ止め部材を示す斜視図である。
【図１７】召内框下部気密ピースを示す斜視図である。
【図１８】召内框と風止部材の関係を示す図で、（ａ）は閉時の平面図、（ｂ）は風圧作用時の平面図、（ｃ）は開時の平面図である。
【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
３ 内障子
４ 外障子
１２ 下枠の上面
１７，１８ 垂下片
２０，２１ 案内溝
６０ 止水ブロック
６４ 第１気密片
７０ 風止部材
７３ 第２気密片
７４ 第３気密片
８０ 気密ピース[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 barrier-free substantially flat surface and the water stop structure at the bottom of a summoning bowl is improved.
[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 A sliding shoji that is slidably opened and closed in the left-right direction, 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 the inner and outer shoji, and the upper surface of the lower frame A lower frame flat sash (also referred to as a non-rail sash because there is no protruding rail on the upper surface of the lower frame) is known.
[0003]
[Patent Document 1]
JP 2002-194963 A
[0004]
[Problems to be solved by the invention]
However, in the case of the sash, since the hanging piece is provided in the lower part on the indoor side of the inner shingles, the airtight line at the lower part of the summing part crosses the door driving line for the inner shingles on the upper surface of the lower frame. The airtight structure (including the watertight structure) at the bottom of the mating portion becomes complicated. In particular, there is a summing water blocking block that contacts the flat surface of the lower frame via an elastic material at the lower part of the summing screen of the shoji, and the elastic material always rubs against the flat surface of the lower frame when opening and closing the shoji. Therefore, not only lowering of durability and lowering of airtightness (including water stoppage) due to wear of the elastic material is caused, but also opening and closing of the shoji becomes heavy, and opening and closing operability is liable to be lowered.
[0005]
The present invention has been made in view of the above circumstances, and an object thereof is to provide an opening device capable of improving airtightness, durability, and opening / closing operability.
[0006]
[Means for Solving the Problems]
Among the present inventions, the invention of claim 1 comprises a frame composed of an upper and lower frame and left and right vertical frames, and inner and outer shojis provided in the frame so as to be openable and closable, and the upper surface of the lower frame is provided. It is formed on a substantially flat surface, and a hanging piece is provided on the lower outside of the inner side of the shoji and the lower side of the inner side of the shoji, and a guide groove for guiding each hanging piece is formed on the upper surface of the lower frame. A side airtight material corresponding to the door is provided, and the inside guide groove is divided into the outdoor side and the indoor side between the indoor guide groove and the indoor / outdoor guide groove below the sumo shoji summon when the shoji is closed. A water blocking block, and a windbreak member for closing a space between the hanging piece of the inner shoji and the hanging piece of the outer shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. Engagement grooves that are engaged from one side are formed It is characterized by that.
[0008]
Claim 2 The 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. Drooping pieces are provided at the lower outside of the shoji and the indoor lower part of the shoji, and a guide groove for guiding each hanging piece is formed on the upper surface of the lower frame, and a horizontal airtight material corresponding to each hanging piece is provided at each guide groove. A water blocking block that divides the indoor side guide groove into the outdoor side and the indoor side between the indoor side guide groove and the indoor and outdoor guide grooves under the shoji 框 summons when the shoji is closed, A windshield member for closing a space between the hanging piece and the hanging piece of the shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. An engagement groove is formed to be engaged from one side, and the windshield member is elastically in contact with the lower surface of an airtight piece provided on the outer surface of the lower chamber of the inner heel summoning bowl. Has two airtight pieces It is characterized by
[0009]
Claim 3 The 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. Drooping pieces are provided at the lower outside of the shoji and the indoor lower part of the shoji, and a guide groove for guiding each hanging piece is formed on the upper surface of the lower frame, and a horizontal airtight material corresponding to each hanging piece is provided at each guide groove. A water blocking block that divides the indoor side guide groove into the outdoor side and the indoor side between the indoor side guide groove and the indoor and outdoor guide grooves under the shoji 框 summons when the shoji is closed, A windshield member for closing a space between the hanging piece and the hanging piece of the shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. An engagement groove is formed to be engaged from one side, and the windshield member is elastically in contact with the lower surface of an airtight piece provided on the outer surface of the lower chamber of the inner heel summoning bowl. 2 air-tight pieces, and a third air-tight piece that elastically contacts the outdoor surface of the hanging piece of the inner impeller It is characterized by that.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 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, FIG. 3 is a longitudinal sectional view of FIG. 1, and FIG. FIG. 5 is an enlarged cross-sectional view of the lower frame, FIG. 6 is a schematic perspective view for explaining the airtight structure, FIG. 7 is a perspective view showing a lower frame rising airtight portion provided on the upper surface of the lower frame, and FIG. FIG. 9 is a schematic perspective view for explaining the airtight structure by the wind-shielding member at the lower part of the summoning fence, and FIG. 10 is the water-blocking block at the lower part of the summoning fence. It is a schematic perspective view for demonstrating an airtight structure.
[0011]
In these drawings, reference numeral 1 denotes a lower frame flat sash (non-rail sash) which is an opening device, and this sash 1 includes upper and lower frames (upper and lower frames) 2a and 2b and left and right frames attached to an outdoor opening of a building. Frame 2 composed of vertical frames 2c, 2d, and shojis (sliding shojis in the embodiment) 3 and 4 attached to the frame 2 so as to be slidable in the left-right direction. A screen door (not shown) 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.
[0012]
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. The shojis 3 and 4 in the illustrated example have intermediate reeds 6e and 8e.
[0013]
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. 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.
[0014]
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.
[0015]
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. The partition wall 25 and the intermediate cover member 39 of the lower frame 2b are provided with drainage holes 35 that allow the outdoor space and the space 33 of the lower frame 2b to communicate with each other than the closed shoji 3 and 4. 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.
[0016]
In order to improve the cleanability of the first and second groove portions 26, 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 42a having a substantially C-shaped cross section of a first side airtight member 42, which will be described later, is formed on the other side of the indoor side cover member 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.
[0017]
The intermediate cover member 38 has a second rising wall 29 and a third rising wall 30, and a mounting groove 43 a mounting groove having a substantially C-shaped cross section of a second side airtight material 43 described later is formed on the second rising wall 29. ing. 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.
[0018]
In order to allow the lower frame 2b to be easily cleaned without removing the shoji 3 and 4, as shown in FIG. 4, the inner shroud 3 side (inner right side) is fixed with the indoor cover member 37a, and the intermediate cover member 38a. The outside cover member 39a is removable, and the outer cover 4 side (inside left side) is fixed with the intermediate cover member 38b, and the indoor cover member 37b and the outdoor cover member 39b are removable. 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 outdoor cover 39a and the lower intermediate cover 38a that are exposed when the shoji is moved to the left (external shovel) are detachably separated, and the shoji is moved to the right (inner shoji) The exposed indoor side cover material 37b and the outdoor side cover material 39b are divided so as to be detachable.
[0019]
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. 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]
In order to shut off the indoor side and the outdoor side of the sash 1 in an airtight manner, and in order to prevent the intrusion of rainwater which is easy to enter because the upper surface of the lower frame is a flat surface, the frame 2 and the shoji 3 and 4 when closed. Thus, it is important how to form a continuous airtight line (also called a water stop line) between the two. In the present embodiment, a soft air-tight airtight material (first lateral wall) is formed between the hanging pieces 17 and 18 of the closed shoji 3 and 4 in the lower frame 2b and the indoor side edges of the guide grooves 20 and 21. Airtight material and second lateral airtight material) 42, 43 are provided. The horizontal airtight materials 42 and 43 are attached to the indoor side edge portions (airtight material mounting grooves 42a and 43a) of the guide grooves 20 and 21, and the hanging pieces 17 and 18 are chambered with respect to the horizontal airtight materials 42 and 43, respectively. It touches from the outside.
[0021]
The drooping pieces 17 and 18 are provided in the lower part of each shoji for the entire length in the longitudinal direction. Specifically, for example, in the case of a shoji, the anti-sway members 44 and 45 as shown in FIGS. 8 to 16 are attached to the lower end of the vertical shaft of each shoji. A hanging piece 17a is formed which is continuous with the hanging piece 17 provided on the lower arm 6b of the shoji. 8 is attached to the lower end portion of the door toe 6d of the inner shoji 3, and the anti-rest member 45 of FIG. 16 is attached to the lower end of the summing cage 6 of the inner shoji 3 Installed.
[0022]
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.
[0023]
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. In order to connect the airtight material and the second horizontal airtight material to make the airtight line continuous, as shown in FIG. 4, FIG. ) Inside the indoor side guide groove 20 between the indoor and outdoor guide grooves 20 and 21 (specifically, the first groove portion 26 including the first guide groove 20, the same applies hereinafter) and the indoor side guide groove 20 below the outdoor side. And a water blocking block 60 made of, for example, a soft resin, and a wind-stop member 70 made of, for example, a soft resin that closes the space between the hanging piece 17 of the inner shuffler 3 and the hanging piece 18 of the outer obstacle 4 are provided. ing.
[0024]
The water blocking block 60 has a main body portion 60a fitted in the first groove portion 26. The upper portion of the main body portion 60a has the same action as the first airtight material 42 continuously with the first airtight material 42. An upper airtight portion 60b is integrally provided. The front portion (outdoor surface) of the upper airtight portion 60b is in contact with the indoor surface of the hanging piece 17 (including the hanging piece portion 17a, the same shall apply hereinafter) of the inner shoji 3 so as to seal between the hanging piece 17. It has become. In order to improve the sealing performance, a plurality of recesses 61 that are partitioned in a substantially rice field shape are provided in the front part of the upper airtight part 60b. In order to attach the back surface portion of the upper airtight portion 60b to the indoor side edge portion of the first guide groove 20, an engagement portion 62 having a substantially T-shaped cross section engaged with the airtight material attaching groove 42a is formed on the back surface portion. Is formed. It is preferable that a taper 63 is provided on one side of the front portion of the upper airtight piece 60b in order to ensure smooth movement of the hanging piece 17a of the sumo wrinkle lower steadying member 45.
[0025]
The water blocking block 60 has a plurality of (for example, four) fin-shaped first airtight pieces 64 that are elastically in contact with the lower end surface of the hanging piece 17 of the inner impingement 3. These first airtight pieces 64 are disposed so as to protrude upward (stand up) so as to be orthogonal to the longitudinal direction of the first guide groove 20 and are disposed at appropriate intervals in the longitudinal direction of the first guide groove 20. The The water blocking block 60 includes an airtight piece 65 having the first airtight piece 64 and a main body to which the airtight piece 65 is attached in order to ensure independent movement of the first airtight piece 64 as shown in FIG. It is comprised by 2 members with the part 6a. In order to facilitate attachment (assembly work) of the airtight piece 65 to the main body 60a, the main body 60a has an engagement groove for engaging an engaging portion 66 formed on the lower portion of the airtight piece 65 from one side. 67 is formed, and an engagement hole 69 for engaging with a retaining protrusion 68 protruding from the bottom surface of the engagement portion 66 is provided. A taper 68a is preferably provided at the end of the retaining projection 68 so as to be easily engaged with the engagement hole 69 and difficult to be removed.
[0026]
As shown in FIG. 10, the first airtight piece 64 is elastic when the hanging piece 17 a of the heel lower part steadying member 45 of the summing child 3 when closed is positioned above the main body 60 a of the water blocking block 60. While bending, it contacts the lower end surface of the drooping piece portion 17a, seals between the main body portion 60a of the water blocking block 60 and the lower end surface of the drooping piece portion 17a, and has flexibility so as to bend elastically. This reduces frictional resistance and wear. Further, since the first airtight piece 64 is independent (separated) from the upper airtight portion 60b on one side, it is possible to prevent biased elastic deformation and ensure independent elastic deformation. It is designed to improve the performance.
[0027]
On the other hand, the windshield member 70 is attached on the second rising wall 29 of the intermediate cover member 38 as shown in FIGS. 5 and 9 to 14. The rising wall 29 is cut at the position of the drain hole 35, and is attached to the end of the cut vertical rising wall 29 by using an airtight material mounting groove 43a. The windshield member 70 has a main body portion 70a that is continuous with the end portion of the second hermetic material 43, and has a substantially T-shaped cross section that engages with the airtight material mounting groove 43a on the back surface portion of the main body portion 70a. A portion 71 is formed. The main body portion 70 a of the windshield member 70 has a predetermined height from the indoor groove wall of the second guide groove 21 to the upper portion of the second rising wall 29 and substantially the same length as the water blocking block 60. The front portion (outdoor surface) of the main body portion 70a is in contact with the indoor surface of the hanging piece 18 (including the hanging piece portion of the steadying member, the same applies hereinafter) of the shoji 4 and seals between the hanging piece 18. It is like that. In order to improve the sealing performance, a plurality of recesses 72 that are partitioned in a substantially frontal shape are provided on the front surface of the main body 70a.
[0028]
The windshield member 70 includes a plurality of, for example, six fin-shaped second airtight pieces 73 that are elastically in contact with the lower surface of the airtight piece 80 provided on the outer surface of the lower chamber of the summing bowl 6c of the inner shoji 3. Yes. These second airtight pieces 73 are arranged so as to protrude upward (stand up) so as to be orthogonal to the longitudinal direction of the second rising wall 29 or the main body portion 70a, and are arranged at appropriate intervals in the longitudinal direction of the main body portion 70a. The As shown in FIG. 9, the second airtight piece 73 is bent elastically when the airtight piece 80 on the outer surface of the lower part of the summoning lower part of the summoning child 3 when closed is positioned above the windshield member 70, while being elastically curved. The main body portion 70a of the windbreak member 70 and the lower end surface of the airtight piece 80 in the gap between the sump lower part hanging piece 17a of the inner and outer shoji 3 and 4 (the outer hoop side hanging piece is not shown) are in contact with the lower end face. Friction resistance and wear are reduced by sealing the gap and having flexibility so as to be elastically curved.
[0029]
The airtight piece 80 is made of a foamed resin (sponge) formed as shown in FIG. 17, and is fixed to the outer surface of the lower chamber of the summoning cage 6c of the inner cot 3 with a double-sided adhesive tape or the like. The outdoor surface of the hermetic piece 80 is in contact with the indoor surface of the calling bowl 8c of the shoji 4 when the shoji is closed, and the hermetic piece 80 is provided on the outdoor surface of the calling bowl 6c of the shoji 3 By being in contact with the summing airtight material 85, the watertight block 60 and the windshield member 70 are connected to the horizontal airtight line by the first airtight material 42 and the second airtight material 43. A vertical airtight line made of a laminated airtight material 85 is connected.
[0030]
In addition, the windshield member 70 is a fin-shaped first member that elastically contacts the outdoor surface of the hanging piece 17 (specifically, the hanging piece portion 17a of the lower armrest member 45) of the inner shoji 3 when the shoji is closed. Three airtight pieces 74 are provided. Specifically, the portion having the two second airtight pieces 73 on the end portion side of the six second airtight pieces 73 in the main body portion 70 a of the sealing member 70 is from the cut portion of the second rising wall 29. The two third airtight pieces 74 are provided on the interior surface of the protruding portion 75 in a state of being connected to the two second airtight pieces 73. The third airtight piece 74 is provided so as to protrude in the room so as to be elastically in contact with the outdoor surface of the hanging piece 17a of the summoning lower part steadying member 45 of the sumo child 3 when closed.
[0031]
In this case, a recess 76 is formed on the inner surface of the protruding portion 75 of the main body 70a in order to lengthen the protruding length of the third airtight piece 74 in order to give flexibility. As shown in FIG. 18, the outdoor surface of the drooping piece 17a of the lower wall steadying member 45 of the summit tub is formed so as to protrude slightly from the outdoor surface of the drooping piece 17 of the lower jar 6b, for example, about 1 to 2 mm. When the inner shroud 3 is closed, the third airtight piece 74 is in contact with the outdoor surface of the hanging piece 17a in an elastically curved state as shown in (a), and when the inner shoji 3 is opened, as shown in (c). The tip of the three airtight piece 74 is separated from the outdoor surface of the drooping piece 1 of the lower rod 6b so that it does not become a resistance during the opening / closing operation.
[0032]
Further, since the third airtight piece 74 is lengthened, the tip of the third airtight piece 74 is shaken even if the inner shovel 3 is moved indoors by wind pressure as shown in FIG. The airtightness is improved without leaving the outdoor surface of the hanging piece 17a of the stop member 45. Of the four first airtight pieces 64 in the water blocking block 60, one first airtight piece 64 a on the end side is in contact with the bottom of the recess 76 between the two third airtight pieces 74. It extends to the outdoor side so that no gap is generated between the water blocking block 60 and the windshield member 70.
[0033]
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 vertical airtight line on the inner hand side continuous, as shown in FIG. 4 and FIG. 7 to FIG. A lower frame rising airtight portion 47 made of, for example, soft rubber is provided to connect the vertical airtight material 46 directly or indirectly, and the lower frame rising airtight portion 47 is closed to the lower part of the door tip portion of the inner shuffler 3 when closed. A door end lower airtight portion 62 that contacts and seals between the lower frame rising airtight portion 47 is provided.
[0034]
In the present embodiment, a vertical frame lower airtight member 48 is attached to the lower portion of the fin 59 of the right vertical frame 2d when viewed from the indoor side so as to be continuous with the vertical frame airtight material 46, and this vertical frame lower airtight member 46 is sealed. The lower frame rising 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.
[0035]
The lower frame rising airtight portion 47 is attached to an end portion of the cover material forming the upper surface 12 of the lower frame 2b, that is, the inner side cover member 37a, and rises from the upper surface of the end portion of the cover material 37a. The inner end surface of the rising portion of the lower frame rising airtight portion 47 and the outer end surface of the lower door portion lower airtight portion 54 are opposed to each other, and the outer end surface of the lower airtight portion 54 of the door tip portion is closed when the inner shoji 3 is closed. The lower frame rising hermetic portion 47 is in contact with the inner end surface of the rising portion so as to seal between the two.
[0036]
The door part lower airtight part 54 is provided as a hanging part at the lower part of a steady member 44 attached to the lower part of the door rod 6d of the inner shoji 3. At least a portion of the door-end lower airtight portion 54 that comes into contact with the lower frame rising airtight portion 47 is made of a cushion material such as sponge, and a slight wrap is provided between the doortip lower airtight portion 54 and the lower frame rising airtight portion 47. It takes a generation, and the sponge is crushed to ensure airtightness. Further, it is preferable that a draining portion 55 made of, for example, soft rubber or the like that protrudes downward from the door tip lower airtight portion 54 on the door tip side is preferably provided at the lower portion of the door tip of the inner shoji 3.
[0037]
One end (inner side end surface) of the lower frame rising hermetic portion 47 is always in contact (close contact) with the vertical frame lower airtight member 48, and the other end (outer end surface) of the lower frame rising hermetic portion 47 is closed. By connecting (contacting) the inner side surface of the outdoor drooping piece 17a of the door toe lower part steadying member 44 of the inner shoji 3, it is connected as an airtight line. Further, the door-end portion lower airtight portion 54 is provided with a substantially full length in the width direction (indoor / outdoor direction) of the lower surface of the door-end ridge so that one end is in contact with the inner side surface of the hanging piece portion 17a.
[0038]
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. In the embodiment, a drainage hole (not shown) is provided in a portion of the water receiving groove 51 concealed 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. It has been.
[0039]
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. Since the guide grooves 20 and 21 for guiding the pieces 17 and 18 are formed, and the horizontal airtight members 42 and 43 corresponding to the respective hanging pieces 17 and 18 are provided in the respective guide grooves 20 and 21, the lower outdoor side of the inner shoji Unlike the conventional sash provided with a hanging piece on the bottom frame 12, it is possible to separate the door carriage traveling line of the inner shoji 3 and the airtight line at the lower part of the summing part on the upper surface 12 of the lower frame, and the airtight and watertight structure at the lower part of the summing part is simplified. Can be In particular, the interior side guide groove 20 is partitioned into the outdoor side and the indoor side between the indoor side guide groove 20 and the indoor and outdoor guide grooves 20 and 21 below the summon 6c of the handrail 3 when the shoji is closed. A water blocking block 60 and a windshield member 70 for closing the space between the hanging piece 17 of the inner shoji 3 and the hanging piece 18 of the outer obstacle 4 are provided. Since it has the fin-shaped first airtight piece 64 that is elastically in contact with the upper portion, the airtightness, durability, and opening / closing operability at the lower portion of the summon can be improved.
[0040]
That is, since the first airtight piece 64 provided in the water blocking block 60 has flexibility so as to bend elastically and is in contact with the lower end surface of the drooping piece 17 of the inner limb 3, it reduces frictional resistance and wear. Thus, the durability of the first airtight piece 64 can be improved and the opening / closing operation of the shoji can be facilitated, and the opening / closing operability can be improved. Further, an airtight piece portion 65 having a fin-like first airtight piece 64 in which the water blocking block 60 is elastically in contact with the lower end surface of the hanging piece 17 of the inner impeller 3, and a main body portion 60a to which the airtight piece portion 65 is attached. Since it is composed of two members, independent elastic deformation of the first airtight piece 64 can be ensured, and airtight failure due to biased elastic deformation of the first airtight piece 64 can be prevented, and the airtightness can be further improved. Can be improved.
[0041]
Further, the windbreak member 70 has a fin-like second airtight piece 73 that elastically contacts the lower surface of the airtight piece 80 provided on the outer surface of the lower chamber of the summing child 3c, and the second airtight piece. Since it is flexible so that 73 is elastically curved and is in contact with the lower surface of the airtight piece 80, friction resistance and wear can be reduced, and the durability of the second airtight piece 73 can be improved and the shoji The opening / closing operation becomes easier and the opening / closing operability can be improved. The windshield member 70 has a fin-like third airtight piece 74 that elastically contacts the outdoor surface of the hanging piece 17 of the inner impingement 3, and the third airtight piece 74 is flexible so that it is elastically curved. In addition, since it is in contact with the outdoor surface of the hanging piece 17 of the inner shoji 3, the frictional resistance and wear can be reduced, the durability of the third airtight piece 74 can be improved, and the opening and closing operation of the shoji becomes easy. The opening / closing operability can be improved.
[0042]
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, and various design changes and the like can be made without departing from the scope of the present invention. is there. In the embodiment, the door running surface of the cover material is formed in a concave surface in accordance with the shape of the door wheel, but may be formed in a convex surface.
[0043]
【The invention's effect】
In short, according to the present invention, the following effects can be obtained.
[0045]
( 1 Claim 1 According to the invention, a frame comprising 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, the upper surface of the lower frame is formed in a substantially flat surface. A hanging piece is provided in the lower part of the inner side of the inner shoji and the lower part of the inner side of the shoji, and a guide groove is formed on the upper surface of the lower frame to guide each hanging piece, and a horizontal airtight material corresponding to each hanging piece in each guide groove. A water blocking block that divides the indoor guide groove into the outdoor side and the indoor side between the indoor guide groove and the indoor and outdoor guide grooves below A windshield member for closing between the hanging piece of the shoji and the hanging piece of the external shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. Engagement grooves that are engaged from one side are formed For, The independent elastic deformation of the first airtight part piece can be ensured and the assemblability of the water blocking block can be improved. Airtightness, durability, and opening / closing operability can be improved.
[0046]
( 2 Claim 2 According to the invention, a frame comprising 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, the upper surface of the lower frame is formed in a substantially flat surface. A hanging piece is provided in the lower part of the inner side of the inner shoji and the lower part of the inner side of the shoji, and a guide groove is formed on the upper surface of the lower frame to guide each hanging piece, and a horizontal airtight material corresponding to each hanging piece in each guide groove. A water blocking block that divides the indoor guide groove into the outdoor side and the indoor side between the indoor guide groove and the indoor and outdoor guide grooves below A windshield member for closing between the hanging piece of the shoji and the hanging piece of the external shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. An engagement groove is formed to be engaged from one side, and the windshield member is elastically in contact with the lower surface of an airtight piece provided on the outer surface of the lower chamber of the inner heel summoning bowl. Has two airtight pieces For, Independent elastic deformation of the first airtight piece can be ensured, the assembling of the water blocking block can be improved, and the durability of the second airtight piece can be improved, Airtightness, durability, and opening / closing operability can be improved.
[0047]
( 3 Claim 3 According to the invention, a frame comprising 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, the upper surface of the lower frame is formed in a substantially flat surface. A hanging piece is provided in the lower part of the inner side of the inner shoji and the lower part of the inner side of the shoji, and a guide groove is formed on the upper surface of the lower frame to guide each hanging piece, and a horizontal airtight material corresponding to each hanging piece in each guide groove. A water blocking block that divides the indoor guide groove into the outdoor side and the indoor side between the indoor guide groove and the indoor and outdoor guide grooves below A windshield member for closing between the hanging piece of the shoji and the hanging piece of the external shoji, The main body portion is composed of two members, a main body portion fitted in the guide groove, and an airtight piece portion having a plurality of fin-shaped first airtight pieces that elastically contact the lower end surface of the hanging piece of the inner impeller. An upper airtight portion that has the same action as the horizontal airtight material is provided integrally with the above horizontal airtight material, and an engagement portion formed at a lower portion of the airtight piece portion is provided on the main body portion. An engagement groove is formed to be engaged from one side, and the windshield member is elastically in contact with the lower surface of an airtight piece provided on the outer surface of the lower chamber of the inner heel summoning bowl. 2 air-tight pieces, and a third air-tight piece that elastically contacts the outdoor surface of the hanging piece of the inner impeller For, Independent elastic deformation of the first airtight piece can be ensured and the assembly of the water blocking block can be improved, and the durability of the second airtight piece and the third airtight piece can be improved, Airtightness, durability, and opening / closing operability can be improved.
[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 plan view of a lower frame.
FIG. 5 is an enlarged cross-sectional view of a lower frame.
FIG. 6 is a schematic perspective view for explaining an airtight structure.
FIG. 7 is a perspective view showing a lower frame rising airtight portion provided on the upper surface of the lower frame.
FIG. 8 is a perspective view showing an airtight structure of a lower part of a door tip portion of a shoji.
FIG. 9 is a schematic perspective view for explaining an airtight structure by a wind-shielding member at the lower part of the summon bowl.
FIG. 10 is a schematic perspective view for explaining an airtight structure by a water blocking block at the lower part of the summon bowl.
FIG. 11 is a schematic plan view showing a mounting configuration of a water blocking block and a wind blocking member on the upper surface of the lower frame.
12 is a perspective view of FIG. 11. FIG.
FIG. 13 is a perspective view of FIG. 12 as seen from the outdoor side.
14A and 14B are views showing a windshield member, where FIG. 14A is a perspective view seen from the indoor side, and FIG. 14B is a perspective view seen from the outdoor side.
FIG. 15 is an explanatory view for explaining a method of assembling a water blocking block.
FIG. 16 is a perspective view showing a touch-stop member at the lower part of the summon bowl.
FIG. 17 is a perspective view showing an airtight piece at the lower part of the summit bowl.
FIGS. 18A and 18B are diagrams showing the relationship between the summon bowl and the windbreak member, where FIG. 18A is a plan view when closed, FIG. .
[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
60 Water blocking block
64 1st airtight piece
70 Windshield
73 Second airtight piece
74 3rd airtight piece
80 Airtight piece