JP2003082943A - Remodeling sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and surely prevent tilt of a newly built sash or a sash frame toward the exterior due to load of an outer sash because of semi-external install. SOLUTION: This remodeling sash 12 has a newly built sash frame 13 fitted to a sash frame 4 of an existing sash 3 fitted to an opening part 2 of a building. A lower frame 13b of the newly built sash 13 is provided with a fitting fin 15 in the outer periphery of the middle part in the direction of the interior and the exterior. One end of a tilt preventing member 21 for preventing the sash frame 13 from tilting toward the exterior of the sash frame 13 is fixed to the lower surface of the lower frame 13b on the interior side from the fitting fin 15 of the lower frame 13b of the newly built sash frame 13 or the interior surface, and the other end of the tilt preventing member 21 is fixed to the lower frame 4b of the existing sash frame 4 or a window sill 1a.

Description

【発明の詳細な説明】 【０００１】 【発明の属する技術分野】本発明は、改装サッシに係
り、特に既設サッシのサッシ枠を撤去することなく新設
サッシのサッシ枠を取付可能とした改装サッシに関す
る。 【０００２】 【従来の技術】建物の開口部に取付けられている既設の
サッシを新しいものに改装する場合、従来では、既設サ
ッシを撤去してから新設サッシを取付ける工法が採られ
ている。しかしながら、この工法では、既設サッシの撤
去に手間がかかるだけでなく、その周縁の外装や内装も
解体しなければならないため、工期や施工コストが多く
かかるという問題があった。 【０００３】このような問題を解決するために、既設サ
ッシのサッシ枠を撤去することなく新設サッシのサッシ
枠を取付可能としたリフォーム用サッシ枠が提案されて
いる（特開２００１−８２０３１号公報参照）。 【０００４】 【発明が解決しようとする課題】しかしながら、前記リ
フォーム用サッシ枠ないし改装サッシにおいては、半外
付納まりで、取付フィンよりも室外側に突出した部分を
有し、この室外側突出部分における外障子等の荷重によ
り新設のサッシないしサッシ枠が室外方向に倒れる恐れ
があった。なお、その倒れ防止対策として新設サッシ枠
の室外側突出部分をアングル材で支えることも考えられ
るが、構造上その設置場所に制限があり、倒れ防止対策
として不十分であった。 【０００５】本発明は、前記事情を考慮してなされたも
ので、半外付納まりであることによる外障子等の荷重に
よる新設のサッシないしサッシ枠の室外方向への倒れを
簡単且つ確実に防止することができる改装サッシを提供
することを目的とする。 【０００６】 【課題を解決するための手段】本発明は、建物の開口部
に取付けられている既設サッシのサッシ枠の内周に取付
けられる新設のサッシ枠を有する改装サッシであって、
前記新設のサッシ枠の下枠は室内外方向中間部の外周に
取付フィンを有しており、新設のサッシ枠の下枠の取付
フィンよりも室内側の下枠下面または室内面に該サッシ
枠の室外方向への倒れを防止する倒れ防止部材の一端を
固定し、該倒れ防止部材の他端を既設のサッシ枠の下枠
または窓台に固定してなることを特徴とする。 【０００７】 【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は本発明の第１の実施の
形態を示す改装サッシの縦断面図、図２は図１の改装サ
ッシの横断面図、図３は図１の改装サッシの分解断面図
である。 【０００８】本実施の形態では、本発明を窓サッシに適
用した一例が示されている。図１〜図３に示すように、
建物の躯体１に形成された開口部２には内付納まりの既
設サッシ３のサッシ枠４が設けられている。この既設の
サッシ枠４は、例えばアルミ押出形材からなる上枠４
ａ、下枠４ｂおよび左右の縦枠４ｃ，４ｃを方形枠状に
組んで構成されている。これら上枠４ａ、下枠４ｂおよ
び左右の縦枠４ｃ，４ｃは、それぞれ躯体１における開
口部２の内周に固着具例えばネジ５ａ〜５ｃで固定され
ている。特に、下枠４ｂは躯体１における窓台１ａ上に
固定されている。 【０００９】また、前記既設サッシ枠４は、室外面の位
置の外周に取付フィン６を有し、該取付フィン６が躯体
１の室外面に固着具例えば釘７で固定されている。窓台
１ａの室外面には、水切り部材８が前記下枠４ｂの取付
フィン６と共に前記釘７で固定されている。また、躯体
１の室外面には外装材９が設けられている。 【００１０】前記既設サッシ３は引違いサッシからな
り、そのサッシ枠４は下枠４ｂに外レール支持部１０ａ
と、該外レール支持部１０ａよりも高さの高い内レール
支持部１０ｂとを室外方向への雨水の排水性を良くすべ
く断面階段状に有している。外レール支持部１０ａには
図示しない外障子を開閉自在に支持する下部外レール１
１ａが設けられ、内レール支持部１０ｂには図示しない
内障子を開閉自在に支持する下部内レール１１ｂが設け
られている。 【００１１】そして、前記既設サッシ枠４の内側（内
周）、好ましくは外レール支持部１０ａから室外側に、
半外付納まりの新設のサッシ枠１３を有する改装用の新
設のサッシ（改装サッシ）１２が取付けられる。この改
装サッシ１２は、図示例では、引違いサッシからなり、
そのサッシ枠１３内には図示しない外障子と内障子とが
開閉自在に設けられる。新設のサッシ枠１３は、上枠１
３ａ、下枠１３ｂおよび左右の縦枠１３ｃ，１３ｃを方
形枠状に組んで構成されている。 【００１２】これら上枠１３ａ、下枠１３ｂおよび左右
の縦枠１３ｃ，１３ｃは、図示例では、金属製例えばア
ルミ押出形材からなる室外側形材１３ｘと、金属製例え
ばアルミ押出形材からなる室内側形材１３ｙとを、低熱
伝導材製例えば樹脂製のブリッジ材１３ｚを介して結合
してなる断熱形材からなっている。下枠１３ｂには、室
外側形材１３ｘに下部外レール１４ａが、室内側形材１
３ｙに下部内レール１４ｂがそれぞれ設けられ、この下
部内レール１４ｂと既設のサッシ枠４の下部外レール１
１ａとは室内外方向の略同じ位置とされている。 【００１３】前記新設のサッシ枠１３は、室内外方向略
中間位置の外周に取付フィン１５を有している。この新
設サッシ枠１３を既設サッシ枠４内に取付けるために、
既設サッシ枠４の室外側内周における少なくとも下枠４
ｂ上には取付部材１６が設けられる。図示例では、既設
サッシ枠４の室外側内周（四周）に取付部材１６が設け
られている。該取付部材１６は、上枠４ａの下面にその
上部外レール１７ａを跨ぐようにして長手方向（左右方
向）に沿って取付けられる上部取付部材１６ａと、下枠
４ｂの上面（外レール支持部上）にその下部外レール１
１ａを跨ぐようにして長手方向に沿って取付けられる下
部取付部材１６ｂと、左右の縦枠４ｃ，４ｃの内側面に
長手方向（上下方向）に沿って取付けられる側部取付部
材１６ｃ，１６ｃとからなっている。 【００１４】これらの取付部材１６ａ，１６ｂ，１６ｃ
は、例えばアルミ押出形材からなっている。これらの取
付部材１６ａ，１６ｂ，１６ｃは、固着具例えばネジ１
８で既設のサッシ枠４または躯体１に固定される。取付
部材１６の取付強度を向上させるために、図示例のよう
に、固着具例えばネジ１８は既設のサッシ枠４を貫通し
て躯体１に固定されることが好ましい。この場合、下部
取付部材１６ｂは、固着具例えばネジ１８で躯体１の窓
台１ａに固定される。 【００１５】前記取付部材１６の室外面は、既設のサッ
シ枠４の室外面例えば網戸レールと略同一面の取付面１
６ｆとされている。図示例では、下部取付部材１６ｂ
は、その取付面１６ｆを下部網戸レール１９ａの室外面
と同一面とすべく下部網戸レール１９ａを収容する凹部
１６ｇが形成されている（図３参照）。また、取付部材
１６の対向面（例えば下部取付部材の上面）は、平坦な
支持面１６ｈとされ、この支持面１６ｈに新設のサッシ
枠１３の取付フィン１５よりも室内側部分が直接または
スぺーサ２０を介して間接的に支持されるようになって
いる。 【００１６】スぺーサ２０は、上部取付部材１６ａと新
設サッシ枠１３の上枠１３ａとの間に介在される上部ス
ぺーサ（上枠スぺーサともいう）２０ａと、下部取付部
材１６ｂと新設サッシ枠１３の下枠１３ｂとの間に介在
される下部スぺーサ（下枠スぺーサともいう）２０ｂ
と、側部取付部材１６ｃと新設サッシ枠１３の縦枠１３
ｃとの間に介在される側部スぺーサ（縦枠スぺーサとも
いう）２０ｃとからなっている。スぺーサ２０は、それ
ぞれ複数に分割されており、取付部材１６の支持面１６
ｈに適宜間隔で隣接した数箇所に両面テープなどで取付
けられる。スぺーサ２０は、室外側形材１３ｘと室内側
形材１３ｙ間のヒートブリッジ（熱橋）にならないよう
に、低熱伝導材例えば合成樹脂により形成されているこ
とが好ましい。 【００１７】また、スぺーサ２０は、薄いスぺーサ板を
粘着材ないし両面テープを介して多数枚積層してなり、
スぺーサ板を剥離することで厚さを可変できるようにな
っていることが好ましい。そして、図示例では、既設の
サッシ枠４の外レール支持部１０ａ上に、新設のサッシ
枠１３の取付フィン１５よりも室内側部分が下部取付部
材１６ｂおよび下部スぺーサ２０ｂを介して間接的に取
付けられている。 【００１８】新設サッシ（改装サッシ）１２ないし新設
サッシ枠１３の室外方向への倒れ（前倒れ）を防止する
ために、新設サッシ枠１３の取付フィン１５よりも室内
側の下枠１３ｂ下面には倒れ防止部材（倒れ防止金具）
２１の一端が固着具例えばネジ２２ａで固定され、該倒
れ防止部材２１の他端が既設のサッシ枠４の下枠４ａま
たは窓台１ａに固着具例えばネジ２２ｂで固定される。
倒れ防止部材２１の取付強度を向上させるために、図示
例のように、固着具例えばネジ２２ｂは既設のサッシ枠
４の下枠４ａを貫通して窓台１ａに固定されることが好
ましい。倒れ防止部材２１は、剛性を有する金属板を図
示例のように曲げ加工してなり、新設サッシ枠１３の横
幅に応じて適宜個数使用される。 【００１９】また、新設サッシ１２ないし新設サッシ枠
１３の風圧による撓みを防止するために、新設サッシ１
２の取付フィン１５よりも室内側の上枠１３ａおよび縦
枠１３ｂが上部取付部材１６ａおよび側部取付部材１６
ｃのそれぞれの支持面１６ｈにそれぞれ固着具例えばネ
ジ２３で固定される。そして、前記新設サッシ枠１３の
取付フィン１５が前記取付部材１６の室外面（取付面１
６ｆ）に固着具例えばネジ（好ましくはテクスネジ）２
４で固定される。この場合、下部および側部の取付フィ
ン１６は下部取付部材１６ｂおよび側部取付部材１６ｃ
のそれぞれの取付面１６ｆに直接当接されて固定される
が、上部の取付フィン１５は上部取付部材１６ａの取付
面１６ｆに上部網戸レール１９ｂを介して固定される。
なお、テクスネジ２４でネジ穴を加工する際の精度およ
び施工性を向上させるために、少なくとも下部取付部材
１６ｂの取付面１６ｆには水平のＶ溝２５が上下方向に
所定ピッチ間隔で形成されていることが好ましい（図３
参照）。 【００２０】また、上記の場合、固着具の頭部が外部に
露出しないようにして外観の向上を図るために、取付フ
ィン１５の室外面には断面Ｕ形状の形材からなる基部枠
２６が前記固着具例えばネジ２４の共締めによって取付
けられ、該基部枠２６に対して略断面Ｕ形状の形材から
なる固着具隠しカバー材２７が嵌合により装着される。
また、色違いの水切り部材８を隠すために、該水切り部
材８の表面には着色塗装ないし着色フィルムがラッピン
グされたアルミ押出形材からなる水切りカバー材２８が
取付けられる。 【００２１】一方、既設サッシ枠４が室内側に露出しな
いようにして外観の向上を図るために、新設サッシ枠１
３の室内側開口周縁部には四周を覆う化粧額縁２９が取
付けられ、躯体１の開口部２の室内側四周には方形枠状
に組まれた木質化粧材３０が取付けられていると共に、
該木質化粧材３０の内周には前記化粧額縁２９の室内端
面に当接される押縁３１が取付けられる。前記化粧額縁
２９は、表面が着色塗装ないし着色フィルムがラッピン
グされたアルミ押出形材からなる断面略Ｌ形状の上下左
右の額縁材２９ａ〜２９ｃをタッピングネジ３２を介し
て方形枠状に組んでなり、その室外側周縁部が新設サッ
シ枠１３の室内側周縁部に固着具例えば皿ネジ３３で固
定されている。 【００２２】前記押縁３１は、着色塗装ないし着色フィ
ルムがラッピングされたアルミ押出形材からなる断面略
Ｈ形状の上下左右の押縁材３１ａ〜３１ｃからなり、各
押縁材３１ａ〜３１ｃは木質化粧材３０に固着具例えば
ネジ３４で固定されている。また、各押縁材３１ａ〜３
１ｃには固着具の頭部が露出しないように覆う樹脂製の
形材からなるキャップ３５が嵌合装着されている。前記
押縁３１が化粧額縁２９の室内面に接するように配設さ
れていることにより、既設サッシ枠４と新設サッシ枠１
３の相対的大きさの違いに伴う化粧額縁２９と木質化粧
材３０との間の隙間が如何程であっても、それに対応な
いし追随して隙間を覆い隠すことができる。前記化粧額
縁２９の室内面と押縁３１の室外面の何れか一方には、
これらの間をシールする気密材３６が設けられているこ
とが好ましい。 【００２３】次に、以上の構成からなる改装サッシ３の
施工方法および作用について説明する。先ず、既設サッ
シ枠４の室外側内周（四周）に取付部材１６を固着具例
えばネジ１８で取付固定する。そして、取付部材１６の
内周に新設サッシ枠１３の取付フィン１５よりも室内側
部分が丁度納まるように、取付部材１６の内周を形成す
る支持面１６ｈにスぺーサ２０を適宜取付けておく。ま
た、新設サッシ枠１３の取付フィン１５よりも室内側の
下枠１３ｂ下面に倒れ防止部材２１の一端を固着具例え
ばネジ２２ａで予め取付固定しておく。 【００２４】次に、新設サッシ枠１３の取付フィン１５
よりも室内側部分を前記既設サッシ枠４における取付部
材１６の内側（内周）に室外側から挿入し、当該室内側
部分をスぺーサ２０を介して取付部材１６の支持面１６
ｈに支持させると共に、前記取付フィン１５を取付部材
１６の取付面（室外面）１６ｆに当接させる。そして、
前記取付フィン１５を取付部材１６の取付面１６ｆに固
着具例えばネジ（テクスネジ）２４で固定する。その際
に、取付フィン１５の室外面に固着具隠しカバー材２７
の基部枠２６を前記ネジ２４の共締めによって取付け、
その後、基部枠２６に対して固着具隠しカバー材２７を
装着すれば良い。 【００２５】次に、前記倒れ防止部材２１の他端を固着
具例えばネジ２２ｂで既設サッシ枠４の下枠４ｂまたは
窓台１ａに固定し、新設サッシ枠１３の上枠１３ａおよ
び縦枠１３ｃを上部取付部材１６ａおよび側部取付部材
１６ｃにそれぞれ固着具例えばネジ２３で固定する。こ
のようにして新設サッシ枠１３の取付けが終了したな
ら、化粧額縁２９、木質化粧材３０、押縁３１や水切り
カバー材２８の取付けを行えば良い。そして、新設サッ
シ枠１３内に障子を装着することにより、新設サッシで
ある改装サッシ１２の取付施工が終了する。 【００２６】以上の構成からなる改装サッシ１２によれ
ば、前記既設のサッシ枠４は下枠４ｂに外レール支持部
１０ａと、該外レール支持部１０ａよりも高さの高い内
レール支持部１０ｂとを有しており、前記新設のサッシ
枠１３は室内外方向略中間の外周に取付フィン１５を有
しており、既設のサッシ枠４の外レール支持部１０ａ上
に新設のサッシ枠１３の取付フィン１５よりも室内側部
分を直接または取付部材１６を介して間接的に取付けて
なるため、既設のサッシ枠４の内レール支持部１０ｂ上
に新設のサッシ枠１３の取付フィン１５よりも室内側部
分を取付ける場合に比して、新設のサッシ枠１３の開口
を広く確保することができ、採光性の向上が図れる。 【００２７】また、前記既設のサッシ枠４の室外側内周
における少なくとも下枠４ｂ上に取付部材１６を設け、
該取付部材１６の室外面は窓台１ａの室外面と略同じ面
上にあり、前記新設のサッシ枠１３は室内外方向略中間
の外周に取付フィン１５を有しており、該取付フィン１
５を前記取付部材１６の室外面に固着具例えばネジ２４
で固定してなるため、既設のサッシ枠４の下枠４ｂに窓
台１ａ室外面よりも突出する突出部５０を有していたと
しても、該突出部５０を切り欠くことなく新設のサッシ
枠１３を容易に取付けることができ、施工性の向上が図
れる。図示例では、既設のサッシ枠４の室外側内周（四
周）に取付部材１６が設けられているため、取付けフィ
ン１５を取付部材１６の室外面に面一に確実且つ容易に
取付けることができ、施工性の向上および気密性の向上
が図れる。 【００２８】更に、前記新設のサッシ枠１３は室内外方
向略中間の外周に取付フィン１５を有しており、新設の
サッシ枠１３の取付フィン１５よりも室内側の下枠下面
に該サッシ枠１３の室外方向への倒れを防止するための
倒れ防止部材２１の一端を固定し、該倒れ防止部材２１
の他端を既設のサッシ枠４の下枠４ｂまたは窓台１ａに
固定してなるため、半外付納まりであることによる外障
子等の荷重による新設のサッシ１２ないしサッシ枠１３
の室外方向への倒れ（前倒れ）を簡単且つ確実に防止す
ることができる。 【００２９】前記実施例では、新設サッシ１２の下枠１
３ｂの取付フィン１５よりも室内側の下枠下面に倒れ防
止部材２１の一端を固定しているが、新設サッシ１２の
下枠１３ｂの取付フィン１５よりも室内側の室内面に倒
れ防止部材２１の一端を固定しても良い。特に、下枠１
３ｂの下面に倒れ防止部材２１の一端を固定することに
より、新設サッシ１２の下枠１３ｂが取付フィン１５を
支点として室外側や室内側へ倒れる力が働いた場合に、
下枠１３ｂと倒れ防止部材２１とを固定するネジ１２ａ
には引張りの力よりも剪断の力がより多く働くため、下
枠１３ｂと倒れ防止部材２１およびこれらを固定するネ
ジ１２ａはより強い負荷に耐えられる。 【００３０】図４は本発明の第２の実施の形態を示す改
装サッシの縦断面図、図５は図４の改装サッシの横断面
図である。本実施の形態では、本発明をテラスサッシに
適用した一例が示されている。図４ないし図５の実施の
形態おいて、前記図１ないし図２の実施の形態と同一部
分は同一参照符号を付して説明を省略し、異なる部分に
ついて説明を加える。既設サッシ３がテラスサッシであ
るため、既設のサッシ枠４の下枠４ｂの室内端よりも室
内側には床４０が設けられている。 【００３１】前記床４０の上面には、化粧額縁２９の下
部額縁材２９ｂの室内端に当接させて、下部押縁材に代
えて下枠補助材４１が固着具例えばネジ４２で取付固定
されている。この下枠補助材４１の上面と下部額縁材２
９ｂの上面とは、歩行可能なように略面一に形成されて
いる。また、新設のサッシ枠１３の下枠１３ｂにおける
取付フィン１５よりも室外側部分の下面と取付フィン１
５の室外面とに跨って、断面Ｌ形状の下枠補強材４３が
下枠１３ｂの横幅に応じて適宜個数設けられている。倒
れ防止部材２１は図１の実施の形態における倒れ防止部
材２１と共通のものが用いられる。以上の構成からなる
本実施の形態の改装サッシによれば、前記実施の形態と
同様に構成されていることにより、同様の作用効果を奏
することができる。 【００３２】図６は本発明の第３の実施の形態を示す改
装サッシの部分的縦断面図である。図６の実施の形態お
いて、前記図１ないし図４の実施の形態と同一部分は同
一参照符号を付して説明を省略し、異なる部分について
説明を加える。本実施の形態においては、既設サッシ３
が半外付納まりとされ、この既設サッシ３のサッシ枠４
内に半外付納まりの新設サッシ１２のサッシ枠１３が取
付けられている。そして、新設サッシ１２の下枠１３ｂ
の取付フィン１５よりも室内側の下枠下面に倒れ防止部
材２１の一端がネジ２２ａで固定され、倒れ防止部材２
１の他端が窓台１ａにネジ２２ｂで固定されている。 【００３３】図示例では、倒れ防止部材の他端が窓台上
の床の上面に当接され、倒れ防止部材の他端を押えるよ
うにネジ２２ｂが床４０から窓台１ａにかけてねじ込ま
れている。下部押縁材３１ｂは、断面略Ｌ字状に形成さ
れ、床４０および窓台１ａにネジ６０で固定されている
と共に、下部額縁材２９ｂの室内端にネジ６１で固定さ
れている。下部押縁材３１ｂにはカバー材６２が取付け
られている。また、下部取付部材１６ｂの室外面には、
既設サッシの下枠の室外側突出部分を覆う要用に水切り
部材６３がネジ２４の共締めにより取付けられている。
以上の構成からなる本実施の形態の改装サッシによれ
ば、前記実施の形態と同様に構成されていることによ
り、同様の作用効果を奏することができる。 【００３４】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。例えば、既設のサッシ枠の外
レール支持部上に新設のサッシ枠の取付フィンよりも室
内側部分が直接取付けられていてもよい。既設サッシの
サッシ枠は、断熱構造であってもよい。改装サッシのサ
ッシ枠は、必ずしも断熱構造である必要はなく、また、
改装サッシの窓種は、引違いサッシに限定されるもので
はない。更に、既設のサッシとしては、内付納まりに限
定されず、半外付納まりであっても良い。 【００３５】 【発明の効果】以上要するに本発明によれば、建物の開
口部に取付けられている既設サッシのサッシ枠の内周に
取付けられる新設のサッシ枠を有する改装サッシであっ
て、前記新設のサッシ枠の下枠は室内外方向中間部の外
周に取付フィンを有しており、新設のサッシ枠の下枠の
取付フィンよりも室内側の下枠下面または室内面に該サ
ッシ枠の室外方向への倒れを防止する倒れ防止部材の一
端を固定し、該倒れ防止部材の他端を既設のサッシ枠の
下枠または窓台に固定してなるため、半外付納まりであ
ることによる外障子等の荷重による新設のサッシないし
サッシ枠の室外方向の倒れを簡単且つ確実に防止するこ
とができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refurbished sash, and more particularly to a refurbished sash capable of mounting a sash frame of a new sash without removing the sash frame of an existing sash. . 2. Description of the Related Art When retrofitting an existing sash attached to an opening of a building to a new one, a method of removing the existing sash and then attaching the new sash has conventionally been adopted. However, this method has a problem that not only takes time to remove the existing sash, but also disassemble the exterior and interior of the sash, thereby increasing the construction period and construction cost. In order to solve such a problem, there has been proposed a sash frame for reforming in which a sash frame of a new sash can be attached without removing the sash frame of the existing sash (Japanese Patent Laid-Open No. 2001-82031). reference). [0004] However, the sash frame for remodeling or the remodeled sash has a portion which is semi-externally fitted and protrudes outside of the mounting fins, and the outside protruding portion. The new sash or sash frame may fall in the outdoor direction due to the load of the outer sash etc. As a countermeasure to prevent the fall, it is conceivable to support the outdoor projecting portion of the newly-installed sash frame with an angle material. However, the installation place is limited due to the structure, and the countermeasure is insufficient. The present invention has been made in consideration of the above circumstances, and simply and reliably prevents a newly-installed sash or sash frame from falling down in the outdoor direction due to a load of a shoji or the like due to a semi-external fit. The aim is to provide a refurbished sash that can be. [0006] The present invention is a refurbished sash having a new sash frame attached to the inner periphery of an existing sash frame attached to an opening of a building,
The lower frame of the new sash frame has a mounting fin on the outer periphery of a middle portion in the indoor / outdoor direction, and the sash frame is located on the lower surface or the indoor surface of the lower frame on the indoor side of the lower frame of the new sash frame. Is characterized in that one end of a fall prevention member for preventing the fall in the outdoor direction is fixed, and the other end of the fall prevention member is fixed to a lower frame or a window stand of an existing sash frame. Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a refurbished sash showing a first embodiment of the present invention, FIG. 2 is a transverse sectional view of the refurbished sash of FIG. 1, and FIG. 3 is an exploded sectional view of the refurbished sash of FIG. In the present embodiment, an example in which the present invention is applied to a window sash is shown. As shown in FIGS.
An opening 2 formed in a building frame 1 is provided with a sash frame 4 of an existing sash 3 which is fitted inside. The existing sash frame 4 is, for example, an upper frame 4 made of extruded aluminum.
a, the lower frame 4b and the left and right vertical frames 4c, 4c are assembled in a rectangular frame shape. The upper frame 4a, the lower frame 4b, and the left and right vertical frames 4c, 4c are fixed to the inner periphery of the opening 2 in the frame 1 with fixing tools, for example, screws 5a to 5c. In particular, the lower frame 4b is fixed on the window stand 1a in the frame 1. Further, the existing sash frame 4 has a mounting fin 6 on the outer periphery at the position of the outdoor surface, and the mounting fin 6 is fixed to the outdoor surface of the frame 1 with a fixing member, for example, a nail 7. A drainer 8 is fixed to the outdoor surface of the window sill 1a with the nails 7 together with the mounting fins 6 of the lower frame 4b. An exterior material 9 is provided on the outdoor surface of the frame 1. The existing sash 3 is composed of a pulling sash, and the sash frame 4 has an outer rail support 10a on a lower frame 4b.
The inner rail support 10b, which is higher than the outer rail support 10a, has a stepped cross-section to improve drainage of rainwater in the outdoor direction. A lower outer rail 1 for supporting a not-shown sash (open / closed) on an outer rail supporting portion 10a.
1a is provided, and a lower inner rail 11b which supports an inner sash (not shown) so as to be able to open and close is provided on the inner rail support portion 10b. Then, the inner side (inner circumference) of the existing sash frame 4, preferably from the outer rail supporting portion 10a to the outdoor side,
A newly-installed sash (renovated sash) 12 having a newly-installed sash frame 13 that fits semi-externally is attached. In the illustrated example, the refurbished sash 12 is composed of a sliding sash,
In the sash frame 13, an outer sash (not shown) and an inner sash (not shown) are provided so as to be freely opened and closed. The new sash frame 13 is the upper frame 1
3a, a lower frame 13b and left and right vertical frames 13c, 13c are assembled in a rectangular frame shape. The upper frame 13a, the lower frame 13b, and the left and right vertical frames 13c, 13c are, in the illustrated example, formed of an outdoor-side profile 13x made of a metal, for example, extruded aluminum, and a metal-made, for example, aluminum extruded profile. It is made of a heat-insulating member formed by joining the indoor-side member 13y via a bridge member 13z made of a low heat conductive material, for example, a resin. On the lower frame 13b, a lower outer rail 14a is attached to the outdoor-side profile 13x, and the indoor-side profile 1 is provided.
3y are provided with lower inner rails 14b, respectively. The lower inner rail 14b and the lower outer rail 1 of the existing sash frame 4 are provided.
1a is located at substantially the same position in the indoor and outdoor directions. The newly-installed sash frame 13 has a mounting fin 15 on the outer periphery at a substantially middle position in the indoor / outdoor direction. In order to attach this new sash frame 13 to the existing sash frame 4,
At least the lower frame 4 on the inner side of the exterior of the existing sash frame 4
The mounting member 16 is provided on b. In the illustrated example, an attachment member 16 is provided on the inner side (four circumferences) of the existing sash frame 4 on the outdoor side. The mounting member 16 includes an upper mounting member 16a that is mounted on the lower surface of the upper frame 4a along the upper outer rail 17a along the longitudinal direction (left-right direction), and an upper surface of the lower frame 4b (on the outer rail support portion). ) To its lower outer rail 1
The lower mounting member 16b is attached along the longitudinal direction so as to straddle 1a, and the side attaching members 16c, 16c attached along the longitudinal direction (vertical direction) on the inner surfaces of the left and right vertical frames 4c, 4c. Has become. These mounting members 16a, 16b, 16c
Is made of, for example, an extruded aluminum material. These mounting members 16a, 16b, 16c are provided with fixing tools such as screws 1
At 8, it is fixed to the existing sash frame 4 or frame 1. In order to improve the mounting strength of the mounting member 16, it is preferable that a fixing tool, for example, a screw 18 penetrates the existing sash frame 4 and is fixed to the frame 1 as shown in the illustrated example. In this case, the lower mounting member 16b is fixed to the window base 1a of the skeleton 1 with a fixing tool, for example, a screw 18. The outdoor surface of the mounting member 16 is substantially the same as the outdoor surface of the existing sash frame 4, for example, the screen door rail.
6f. In the illustrated example, the lower mounting member 16b
The recess 16g for accommodating the lower screen door rail 19a is formed so that the mounting surface 16f is flush with the outdoor surface of the lower screen door rail 19a (see FIG. 3). The opposite surface of the mounting member 16 (e.g., the upper surface of the lower mounting member) is a flat support surface 16h, and a portion of the newly installed sash frame 13 on the indoor side with respect to the mounting fin 15 is directly or swallowed on the support surface 16h. It is indirectly supported via the support 20. The spacer 20 includes an upper spacer (also referred to as an upper frame spacer) 20a interposed between the upper mounting member 16a and the upper frame 13a of the new sash frame 13, and a lower mounting member 16b. A lower spacer (also referred to as a lower frame spacer) 20b interposed between the lower frame 13b and the new sash frame 13
And the vertical frame 13 of the side mounting member 16c and the new sash frame 13.
c and a side spacer (also referred to as a vertical frame spacer) 20c interposed therebetween. The spacer 20 is divided into a plurality of parts, and the support surface 16 of the mounting member 16 is
h is attached with double-sided tape or the like at several locations adjacent to each other at appropriate intervals. The spacer 20 is preferably formed of a low heat conductive material, for example, a synthetic resin so as not to become a heat bridge (thermal bridge) between the outdoor-side profile 13x and the indoor-side profile 13y. The spacer 20 is formed by laminating a large number of thin spacer plates via an adhesive or a double-sided tape.
It is preferable that the thickness can be changed by peeling the spacer plate. In the illustrated example, on the outer rail support portion 10a of the existing sash frame 4, a portion closer to the room than the mounting fins 15 of the new sash frame 13 is indirectly connected via the lower mounting member 16b and the lower spacer 20b. Mounted on. In order to prevent the new sash (refurbished sash) 12 or the new sash frame 13 from falling down (front-falling) in the outdoor direction, the lower surface of the lower frame 13b on the indoor side than the mounting fins 15 of the new sash frame 13 is provided. Fall prevention member (fall prevention bracket)
One end of 21 is fixed with a fixing member such as a screw 22a, and the other end of the fall prevention member 21 is fixed to the lower frame 4a or the window base 1a of the existing sash frame 4 with a fixing member such as a screw 22b.
In order to improve the mounting strength of the fall prevention member 21, it is preferable that a fixing tool, for example, a screw 22b penetrates the lower frame 4a of the existing sash frame 4 and is fixed to the window base 1a, as shown in the illustrated example. The fall prevention members 21 are formed by bending a rigid metal plate as shown in the illustrated example, and are appropriately used in accordance with the width of the new sash frame 13. In order to prevent bending of the new sash 12 or the new sash frame 13 due to wind pressure, the new sash 1
The upper frame 13a and the vertical frame 13b on the indoor side of the second mounting fin 15 are formed on the upper mounting member 16a and the side mounting member 16.
c is fixed to each support surface 16h with a fixing tool, for example, a screw 23. The mounting fins 15 of the new sash frame 13 are attached to the outdoor surface of the mounting member 16 (the mounting surface 1).
6f) a fixing device such as a screw (preferably a text screw) 2
Fixed at 4. In this case, the lower and side mounting fins 16 are connected to the lower mounting member 16b and the side mounting member 16c.
The upper mounting fin 15 is fixed to the mounting surface 16f of the upper mounting member 16a via the upper screen door rail 19b.
In addition, in order to improve the accuracy and workability when machining the screw hole with the tex screw 24, at least a horizontal V groove 25 is formed at a predetermined pitch in the vertical direction on the mounting surface 16f of the lower mounting member 16b. (FIG. 3
reference). In the above case, a base frame 26 made of a U-shaped cross section is provided on the outdoor surface of the mounting fin 15 in order to improve the appearance by preventing the head of the fixing tool from being exposed to the outside. The fixing tool, for example, the screw 24 is attached together by fastening together, and the fixing tool concealing cover material 27 made of a substantially U-shaped section is fitted to the base frame 26 by fitting.
In order to hide the different-color drainers 8, a drainer 28 made of extruded aluminum with a colored coating or a colored film wrapped thereon is attached to the surface of the drainer 8. On the other hand, in order to improve the external appearance by preventing the existing sash frame 4 from being exposed to the indoor side, the new sash frame 1 is provided.
A decorative frame 29 covering four circumferences is attached to the periphery of the indoor side opening 3 and a wooden decorative material 30 assembled in a square frame shape is mounted to the four indoor sides of the opening 2 of the skeleton 1.
On the inner periphery of the wooden decorative material 30, a ridge 31 which is in contact with the indoor end surface of the decorative frame 29 is attached. The decorative frame 29 is formed by assembling upper and lower left and right frame members 29 a to 29 c having a substantially L-shaped cross section made of an extruded aluminum material whose surface is colored and painted or wrapped with a colored film via a tapping screw 32. The outer peripheral portion is fixed to the inner peripheral portion of the new sash frame 13 with a fixing member, for example, a flathead screw 33. The ridge 31 is composed of upper and lower left and right ridges 31a to 31c each having a substantially H-shaped cross section made of an extruded aluminum material on which a colored coating or a colored film is wrapped, and each of the ridges 31a to 31c is a wooden decorative material 30. Is fixed by a fixing tool, for example, a screw 34. In addition, each of the beveling members 31a-3
1c is fitted with a cap 35 made of a resin-made material that covers the head of the fixing tool so as not to be exposed. The sash frame 4 and the new sash frame 1 are arranged such that the pressing edge 31 is disposed so as to be in contact with the indoor surface of the decorative frame 29.
Regardless of the gap between the decorative frame 29 and the wooden decorative material 30 due to the difference in the relative sizes of the three, the gap can be covered or covered in accordance with or following the gap. On one of the indoor surface of the decorative frame 29 and the outdoor surface of the pressing edge 31,
It is preferable to provide an airtight material 36 for sealing between them. Next, the construction method and operation of the refurbished sash 3 having the above configuration will be described. First, the mounting member 16 is mounted and fixed on the inner side (four circumferences) of the existing sash frame 4 on the outdoor side with a fixing member, for example, a screw 18. Then, the spacer 20 is appropriately mounted on the support surface 16h forming the inner circumference of the mounting member 16 so that the inner side of the mounting sash frame 13 fits into the inner circumference of the mounting member 16 just below the mounting fin 15 of the new sash frame 13. . In addition, one end of the fall prevention member 21 is attached and fixed in advance to a lower surface of the lower frame 13b on the indoor side with respect to the mounting fins 15 of the new sash frame 13 with a fixing member, for example, a screw 22a. Next, the mounting fins 15 of the new sash frame 13 will be described.
The interior side portion is inserted into the interior (inner circumference) of the attachment member 16 of the existing sash frame 4 from the exterior side, and the interior side portion is supported via the spacer 20 by the support surface 16 of the attachment member 16.
h, and the mounting fins 15 are brought into contact with the mounting surface (outdoor surface) 16 f of the mounting member 16. And
The mounting fin 15 is fixed to the mounting surface 16f of the mounting member 16 with a fixing tool, for example, a screw (text screw) 24. At this time, the fixing tool concealing cover material 27 is attached to the outdoor surface of the mounting fin 15.
A base frame 26 is attached by jointly tightening the screw 24,
Thereafter, the fixing member cover material 27 may be attached to the base frame 26. Next, the other end of the fall prevention member 21 is fixed to the lower frame 4b or the window base 1a of the existing sash frame 4 with a fixing tool, for example, a screw 22b, and the upper frame 13a and the vertical frame 13c of the new sash frame 13 are fixed. It is fixed to the upper mounting member 16a and the side mounting member 16c, respectively, with a fixing tool, for example, a screw 23. When the installation of the new sash frame 13 is completed in this way, the decorative frame 29, the wooden decorative material 30, the pressing edge 31, and the drainer cover material 28 may be mounted. Then, by mounting a shoji in the new sash frame 13, the installation of the refurbished sash 12, which is a new sash, is completed. According to the refurbished sash 12 having the above-described structure, the existing sash frame 4 is provided on the lower frame 4b with the outer rail support 10a and the inner rail support 10b higher than the outer rail support 10a. The new sash frame 13 has a mounting fin 15 at a substantially middle outer periphery in the indoor and outdoor directions, and is provided on the outer rail support portion 10a of the existing sash frame 4. Since the inner side portion of the sash frame 13 is attached directly or indirectly via the attachment member 16 to the inside of the sash frame 13, the inner fin portion 15 is mounted on the inner rail support portion 10 b of the existing sash frame 4. The opening of the newly-installed sash frame 13 can be made wider than in the case where the inner portion is mounted, and the daylighting can be improved. A mounting member 16 is provided on at least the lower frame 4b on the inner side of the exterior of the existing sash frame 4,
The outdoor surface of the mounting member 16 is substantially on the same surface as the outdoor surface of the window sill 1a, and the newly-installed sash frame 13 has mounting fins 15 at a substantially middle outer periphery in the indoor and outdoor directions.
5 is attached to the outdoor surface of the mounting member 16 with a fixing member such as a screw 24.
Therefore, even if the lower frame 4b of the existing sash frame 4 has the protruding portion 50 protruding from the exterior surface of the window base 1a, the new sash frame is not cut off without cutting out the protruding portion 50. 13 can be easily attached, and the workability can be improved. In the illustrated example, since the mounting member 16 is provided on the inner side (four circumferences) of the existing sash frame 4 on the outdoor side, the mounting fins 15 can be securely and easily mounted on the outdoor surface of the mounting member 16 flush. In addition, workability and airtightness can be improved. Further, the newly-installed sash frame 13 has a mounting fin 15 on a substantially middle outer periphery in the indoor / outdoor direction. 13 is fixed to one end of a fall prevention member 21 for preventing the fall of the outside in the outdoor direction.
Is fixed to the lower frame 4b or the window sill 1a of the existing sash frame 4, so that the new sash 12 or the sash frame 13 due to the load of the outer sash or the like due to the semi-external fit.
Can be easily and reliably prevented from falling down (outside-down). In the above embodiment, the lower frame 1 of the new sash 12 is used.
One end of the fall prevention member 21 is fixed to the lower surface of the lower frame on the indoor side relative to the mounting fin 15 of 3b, but the fall prevention member 21 is mounted on the indoor surface closer to the indoor side than the mounting fin 15 of the lower frame 13b of the new sash 12. May be fixed at one end. In particular, lower frame 1
By fixing one end of the fall prevention member 21 to the lower surface of 3b, when the lower frame 13b of the new sash 12 acts on the mounting fin 15 as a fulcrum, the force falls down to the outside or the inside of the room.
Screw 12a for fixing lower frame 13b and fall prevention member 21
The lower frame 13b, the fall prevention member 21, and the screw 12a fixing these members can withstand a higher load because the shear force acts more than the pull force on the lower frame 13b. FIG. 4 is a longitudinal sectional view of a refurbished sash showing a second embodiment of the present invention, and FIG. 5 is a transverse sectional view of the refurbished sash of FIG. In the present embodiment, an example in which the present invention is applied to a terrace sash is shown. In the embodiments of FIGS. 4 and 5, the same parts as those in the embodiments of FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof will be omitted. The different parts will be described. Since the existing sash 3 is a terrace sash, the floor 40 is provided on the indoor side of the lower frame 4b of the existing sash frame 4 from the indoor end. On the upper surface of the floor 40, a lower frame auxiliary member 41 is attached and fixed with a fixing member, for example, a screw 42, in contact with the indoor end of the lower frame member 29b of the decorative frame 29, in place of the lower frame member. I have. The upper surface of the lower frame auxiliary material 41 and the lower frame material 2
The upper surface of 9b is formed substantially flush so as to be able to walk. Further, the lower surface of the mounting fin 15 in the lower frame 13b of the newly installed sash frame 13 and the mounting fin 1
The lower frame reinforcing member 43 having an L-shaped cross section is provided in an appropriate number in accordance with the lateral width of the lower frame 13b across the outdoor surface of No. 5. The fall prevention member 21 is the same as the fall prevention member 21 in the embodiment of FIG. According to the refurbished sash of the present embodiment having the above-described configuration, the same function and effect can be achieved by being configured in the same manner as in the above-described embodiment. FIG. 6 is a partial longitudinal sectional view of a retrofit sash showing a third embodiment of the present invention. In the embodiment of FIG. 6, the same parts as those of the embodiment of FIGS. 1 to 4 are denoted by the same reference numerals, and the description thereof will be omitted. In the present embodiment, the existing sash 3
Sash frame 4 of this existing sash 3
Inside, a sash frame 13 of a new sash 12 which is semi-externally fitted is mounted. And the lower frame 13b of the new sash 12
One end of the fall prevention member 21 is fixed to the lower surface of the lower frame on the indoor side of the mounting fin 15 with a screw 22a.
The other end of 1 is fixed to window base 1a with screws 22b. In the illustrated example, the other end of the fall prevention member is in contact with the upper surface of the floor on the window base, and a screw 22b is screwed from the floor 40 to the window base 1a so as to press the other end of the fall prevention member. . The lower frame member 31b is formed to have a substantially L-shaped cross section, and is fixed to the floor 40 and the window sill 1a with screws 60, and is also fixed to the indoor end of the lower frame member 29b with screws 61. A cover member 62 is attached to the lower edge member 31b. In addition, on the outdoor surface of the lower mounting member 16b,
A drainer 63 is attached to the lower frame of the existing sash by means of joint fastening of the screw 24 as necessary.
According to the refurbished sash of the present embodiment having the above-described configuration, the same function and effect can be achieved by being configured in the same manner as in the above-described embodiment. Although the preferred embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-discussed preferred embodiments, and various design changes and the like can be made without departing from the scope of the present invention. Is possible. For example, the indoor side portion may be directly mounted on the outer rail support portion of the existing sash frame rather than the mounting fins of the new sash frame. The sash frame of the existing sash may have a heat insulating structure. The sash frame of the refurbished sash does not necessarily have to be a heat insulating structure,
The window type of the refurbished sash is not limited to the sliding sash. Further, the existing sash is not limited to the internal storage, but may be a semi-external storage. In summary, according to the present invention, there is provided a refurbished sash having a new sash frame attached to the inner periphery of a sash frame of an existing sash attached to an opening of a building. The lower frame of the sash frame has a mounting fin on the outer periphery of the intermediate portion in the indoor / outdoor direction, and the lower side of the lower frame or the indoor surface of the sash frame on the indoor side than the mounting fin of the lower frame of the new sash frame. One end of the fall prevention member for preventing the fall in the direction is fixed, and the other end of the fall prevention member is fixed to the lower frame or the window stand of the existing sash frame. It is possible to easily and reliably prevent a newly installed sash or sash frame from falling down in the outdoor direction due to a load such as a shoji.

【図面の簡単な説明】 【図１】本発明の第１の実施の形態を示す改装サッシの
縦断面図である。 【図２】図１の改装サッシの横断面図である。 【図３】図１の改装サッシの分解断面図である。 【図４】本発明の第２の実施の形態を示す改装サッシの
縦断面図である。 【図５】図４の改装サッシの横断面図である。 【図６】本発明の第３の実施の形態を示す改装サッシの
部分的縦断面図である。 【符号の説明】 １ａ 窓台 ２ 開口部 ３ 既設のサッシ ４ 既設のサッシ枠 ４ｂ 既設のサッシ枠の下枠 １２ 改装サッシ（新設のサッシ） １３ 新設のサッシ枠 １３ｂ 新設のサッシ枠の下枠 １５ 取付フィン ２１ 倒れ防止部材BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a remodeling sash showing a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the retrofit sash of FIG. FIG. 3 is an exploded sectional view of the retrofit sash of FIG. 1; FIG. 4 is a longitudinal sectional view of a refurbished sash showing a second embodiment of the present invention. FIG. 5 is a cross-sectional view of the retrofit sash of FIG. FIG. 6 is a partial vertical cross-sectional view of a retrofit sash showing a third embodiment of the present invention. DESCRIPTION OF SYMBOLS 1a Window stand 2 Opening 3 Existing sash 4 Existing sash frame 4b Existing sash frame lower frame 12 Refurbished sash (new sash) 13 New sash frame 13b New sash frame lower frame 15 Mounting fin 21 Fall prevention member

Claims (1)

【特許請求の範囲】 【請求項１】 建物の開口部に取付けられている既設サ
ッシのサッシ枠の内周に取付けられる新設のサッシ枠を
有する改装サッシであって、前記新設のサッシ枠の下枠
は室内外方向中間部の外周に取付フィンを有しており、
新設のサッシ枠の下枠の取付フィンよりも室内側の下枠
下面または室内面に該サッシ枠の室外方向への倒れを防
止する倒れ防止部材の一端を固定し、該倒れ防止部材の
他端を既設のサッシ枠の下枠または窓台に固定してなる
ことを特徴とする改装サッシ。Claims 1. A refurbished sash having a new sash frame attached to the inner periphery of a sash frame of an existing sash attached to an opening of a building, wherein the sash frame is below the newly installed sash frame. The frame has mounting fins on the outer periphery of the middle part in the indoor and outdoor directions,
One end of a fall prevention member for preventing the sash frame from falling in the outdoor direction is fixed to the lower surface of the lower frame or the indoor surface of the newly installed sash frame below the mounting fins of the lower frame, and the other end of the fall prevention member Characterized by being fixed to a lower frame or a window sill of an existing sash frame.