JP4102494B2

JP4102494B2 - Escape operation device for back face grid

Info

Publication number: JP4102494B2
Application number: JP30125098A
Authority: JP
Inventors: 慶三岩本
Original assignee: 慶三岩本
Priority date: 1998-10-22
Filing date: 1998-10-22
Publication date: 2008-06-18
Anticipated expiration: 2018-10-22
Also published as: JP2000130050A

Description

【０００１】
【発明の属する技術分野】
この発明は、建物の窓部に設けた既設のサッシに取り付ける後付面格子の脱出操作装置に関する。
【０００２】
【従来の技術】
防犯や装飾の目的で、一般の家屋における窓部の外側に面格子を取り付け、外部からの侵入を防ぐことが行われているが、面格子がサッシや建物躯体に固定化したタイプの固定面格子であると、火災等の非常時に窓部からの脱出が不可能となり、室内にいる人が閉じ込められて焼死するという事故につながる。
【０００３】
そこで、面格子を室内側から開閉自在とし、閉鎖状態で防犯の目的を達成すると同時に、緊急の非常時には開放することにより、室内から窓部を介して室外に脱出することのできる開閉タイプの脱出面格子が提案されている。
【０００４】
この脱出面格子１は、図１に示すように、サッシ２や建物躯体に固定化する外枠３内に該外枠３内を閉鎖することのできる二枚の格子枠４を組み込み、少なくとも一方の格子枠４をレール５に沿って移動可能となるようにし、外枠３には可動格子枠４を閉鎖位置にロックするための施錠機構６を設けると共に、緊急の非常時に室内側から施錠機構６を開錠して可動格子枠４を開放位置に移動可能とするための脱出操作装置７を設けて構成され、この脱出操作装置７には、室外側から開錠操作をすることができない機能が要求される。
【０００５】
図２乃至図５は、脱出面格子１における従来の施錠機構６とこれを操作する脱出操作装置７を示し、施錠機構６は、外枠３の縦桟８における下部の位置に固定したケース部材９によって鍵板１０を、該ケース部材９に設けた水平の長孔１１に沿って室の内外方向に移動可能となるよう保持し、可動格子枠４の縦桟４ａに、該可動格子枠４が閉鎖位置にあるとき鍵板１０が係脱自在となる係止部材１２を固定して構成され、可動格子枠４を閉鎖位置にして係止部材１２の係止孔１３に鍵板１０を係合させれば、可動格子枠４に対する施錠状態になる。
【０００６】
脱出操作装置７は、上記ケース部材９に、成人の手よりも長い長さを有する操作バー１４を、外枠３の縦桟８に沿う起立状態から室内側へ水平状態に突出する起伏回動が自在となるようピン１５で取り付け、この操作バー１４の内部に長さ方向への移動が可能となり、長さ方向への移動操作によって施錠機構６における鍵板１０の施錠と開錠を操作するための操作杆１６を収納し、操作杆１６の端部と上記鍵板１０を、ケース部材９に設けた水平の長孔１１と操作バー１４に設けた長孔１７を貫通するピン１８で結合連結し、該操作杆１６の先端に操作バー１４の先端から突出し、操作杆１４を長さ方向に移動操作するための操作部材１９を設けた構造になっている。
【０００７】
図２に示すように、操作部材１９を操作バー１４内に向けて押し込み、鍵板１０を係止部材１２に係合させた施錠位置にあるとき、鍵板１０と操作杆１６の結合ピン１８は操作バー１４の枢止ピン１５と同軸心状の配置となり、操作バー１４とその内部に収納した操作杆１６とは結合ピン１８と枢止ピン１５を支点に起伏回動可能となり、通常は操作バー１４を起立させて外枠３の縦桟８内に収納した状態としておき、緊急の非常時には、図３のごとく、操作バー１４を室内側へ水平に倒して操作部材１９を引っ張れば、鍵板１０が係止部材１２から抜けて開錠状態となり、可動格子枠４を開放することができる。
【０００８】
上記操作バー１４が水平以外の角度にあるとき、操作バー１４の長孔１７がケース部材９の長孔１１に対して角度をもち、両長孔１１、１７に結合ピン１８が納まる鍵板１０は移動が不可能になり、操作部材１９を引っ張ろうとしても移動することがなく、施錠状態が保持される。
【０００９】
また、操作バー１４を水平に倒すと、操作バー１４の長孔１７はケース部材９の長孔１１に平行し、両長孔１１、１７に結合ピン１８が納まる鍵板１０は移動が可能になり、従って、操作部材１９を引っ張ると操作杆１６と鍵板１０が一体に移動し、開錠状態とすることができる。
【００１０】
【発明が解決しようとする課題】
ところで、上記従来の脱出操作装置は、操作バー１４を成人の手よりも長い長さに設定し、水平に倒した状態で室外側から手を差し入れても操作部材１９に届かないようにして、直接手で引っ張り操作ができないようにしているが、特殊な道具を用意し、操作バー１４を水平に倒した状態で室外側からこの道具を差し入れ、該道具で操作部材１９を掴んで引っ張り、開錠状態にされてしまう危険性がある。
【００１１】
なぜならば、上記従来の脱出操作装置は、操作バー１４を水平に倒した状態で、操作部材１９を単に引っ張るだけの単一操作で開錠状態にできるため、特殊な道具を製作して操作部材１９を引っ張り操作ることは容易に可能となるからである。
【００１２】
そこで、この発明の課題は、操作バーを水平に倒した状態で、開錠状態にするための操作部材の操作に複数の複合操作を行わなければならないようにし、このため、開錠操作が特殊な道具を用いても困難になり、脱出面格子の安全性を大幅に向上させることができる後付面格子の脱出操作装置を提供することにある。
【００１３】
【課題を解決するための手段】
上記のような課題を解決するため、請求項１の発明は、建物の窓部に設けたサッシの室外側に開閉可能な後付面格子を取り付け、該後付面格子に閉鎖状態を施錠する施錠機構を設け、この施錠機構の施錠と開錠を室内側から操作することができるようにした後付面格子の脱出操作装置において、後付面格子枠の少なくとも一方縦枠桟に、成人の手よりも長い長さを有する操作バーを起伏回動が自在となるよう取り付け、この操作バーの内部に施錠機構の施錠と開錠を操作するための操作杆を収納し、前記操作杆の先端部に該操作杆を操作するための操作部材を設け、該操作部材と操作バーの先端部分に、施錠機構の施錠状態で操作バーに対して操作部材を固定化する係止手段を設け、この操作部材に、係止手段の係止状態を保持し、操作バーを水平に伏倒させた状態でのみ係止手段の解除を可能にするロック機構を組み込んだ構成を採用したものである。
【００１４】
請求項２の発明は、請求項１の発明において、前記操作部材が、操作杆の先端に固定された固定把手と、操作杆の先端側に揺動可能に枢止され、固定把手に対して常時離開する弾性が付与された可動把手とからなり、この可動把手と操作バーに、操作杆が施錠機構の施錠位置にあり、かつ可動把手が離開位置で係合して操作杆の開錠方向への移動を阻止する一対の係止手段を設け、ロック機構が、一方の把手に操作バーを水平に伏倒した状態で先端下がりとなる傾斜面を設け、固定把手と可動把手の対向面間に、傾斜面の上り側端部に位置するとき可動把手の上記離開位置をロックし、操作バーを水平に伏倒した位相状態で傾斜面の下がり側端部に移動して可動把手のロックを解く可動子を設けて形成されている構成を採用したものである。
【００１５】
請求項３の発明は、請求項１の発明において、前記操作部材が、操作杆の先端に固定された固定把手と、操作杆の先端側に揺動可能に枢止され、固定把手に対して常時離開する弾性が付与された可動把手とからなり、この可動把手と操作バーに、操作杆が施錠機構の施錠位置にあり、かつ可動把手が離開位置で係合して操作杆の開錠方向への移動を阻止する一対の係止手段を設け、ロック機構が、一方の把手に操作バーを水平に伏倒した状態で先端下がりとなる傾斜ガイド軸を設け、固定把手と可動把手の対向面間に、傾斜ガイド軸に沿って移動自在となり、傾斜ガイド軸の上り側端部に位置するとき可動把手の上記離開位置をロックし、操作バーを水平に伏倒した位相状態で傾斜ガイド軸の下がり側端部に移動して可動把手のロックを解く可動子を設けて形成されている構成を採用したものである。
【００１６】
請求項４の発明は、請求項１乃至３の発明において、前記操作部材は、操作バーに対して、施錠機構の施錠と開錠のための引き押し動または回転動操作と、この操作部材を操作バーへ固定するために設けた係止手段を係脱する係脱操作との異なった複数の移動操作が可能となり、この操作部材に設けたロック機構が、操作バーを水平に伏倒した位相状態でのみ係止手段の係脱操作を可能にしている構成を採用したものである。
【００１７】
【発明の実施の形態】
以下、この発明の実施の形態を図示例と共に説明する。
【００１８】
図１で示したように、脱出面格子１は、建物の窓部に設けたサッシ２や建物躯体に周知の取り付け手段を用いて固定化して該サッシ２の室外側に配置する外枠３内に、上記外枠３内を閉鎖することのできる二枚の格子枠４を組み込み、少なくとも一方の格子枠４を外枠３の上下横桟に設けたレール５に沿って移動可能となるようにして構成され、上記外枠３の一方縦桟８における下部の位置に、可動格子枠を閉鎖位置に施錠するための施錠機構６と、緊急の非常時に室内側から施錠機構６を開錠して可動格子枠４を開放位置に移動可能とするための脱出操作装置７が設けられている。
【００１９】
なお、施錠機構６の構造と後述する脱出操作装置７の一部の構造は、図１乃至図５に示した従来の技術の項で述べたものと同じであるので、該当部分に同一符号を使用すと共に、同一部分に同一符号を付して説明に代える。また、脱出操作装置７を取り付ける脱出面格子１は、図示のような二枚の格子枠４の引き違い式以外に、一方格子枠を外枠に固定した片開き式、二枚の格子枠の一方格子枠を外枠に固定し、他方格子枠を一方格子枠と同一面に並ぶ閉鎖位置から、この一方格子枠の外面に重なる開放位置に移動し得るもの、格子枠がパンタグラフ式で伸縮するもの等の構造であってもよい。
【００２０】
図６と図７は、第１の実施の形態の脱出操作装置の要部を示している。
この第１の実施の形態の脱出操作装置７は、脱出面格子１の外枠３に、図１乃至図５に示したと同様の成人の手よりも長い長さを有するパイプ製の操作バー１４を、該外枠３の縦桟に沿う起立状態から室内側へ水平状態に突出する起伏回動が自在となるよう取り付け、この操作バー１４の内部に長さ方向への移動が可能となり、長さ方向への移動操作によって施錠機構６の施錠と開錠を操作するための操作杆を１６収納し、該操作杆１６の先端には、操作バー１４の先端に設けたケース２１から突出し、該操作杆１６を長さ方向へ移動操作するための固定把手２２と、操作杆１６にピン２３で枢止され、揺動が自在となる可動把手２４と、固定把手２２に対して可動把手２４に常時離開する弾性を付与するスプリング２５が設けられ、固定把手２２と可動把手２４が、施錠機構６の施錠と開錠の操作部材となる。
【００２１】
上記可動把手２４は、図６（ｂ）のように操作バー１４を水平に伏倒させたとき、固定把手２２に対して上側に位置し、操作杆１６の先端にピン２３で枢止され、固定把手２２は操作杆１６の先端に固定化され、スプリング２５は固定把手２２と可動把手２４の対向面間に縮設されている。
【００２２】
上記可動把手２４と操作バー１４に設けたケース２１には、操作杆１６が施錠機構６の施錠位置にあり、かつ可動把手２４が固定把手２２に対して離開位置にあるとき互いに係合して操作杆１６の開錠方向への移動を阻止する一対の係止手段２６が設けられている。この係止手段２６は、可動把手２４の外面に設けた突起２９と、ケース２１の開口縁に設けた係合片３０とで形成されている。
【００２３】
前記固定把手２２と可動把手２４の内部には、一対の係止手段２６の係合状態を保持し、操作バー１４を水平に倒したときのみ係止手段２６の離脱操作を可能にするロック機構Ａが組み込まれている。
【００２４】
上記ロック機構Ａは、固定把手２２の可動把手２４と対向する内面に、操作バー１４を水平に伏倒した状態で先端下がりとなる傾斜面２７を設け、固定把手２２と可動把手２４の対向面間に、傾斜面２７のピン２３寄りとなる上り側端部に位置するとき可動把手２４の上記離開位置をロックし、操作バー１４を水平に伏倒した位相状態で傾斜面２７の下がり側端部に移動して可動把手２４のロックを解く可動子２８を組み込み、可動把手２４の内面でピン２３寄りの位置に可動子２８に対する当接片３１を設けて構成されている。
【００２５】
なお、可動子２８にはボールやローラ、角軸体を用いることができ、これらは、金属、硬質樹脂、ガラス等で形成すればよい。
【００２６】
上記可動子２８は、操作バー１４を伏倒させて固定把手２２の傾斜面２７が水平になるまでは、図６（Ａ）のように、固定把手２２と可動把手２４間の根元部分に位置し、当接片３１がこの可動子２８に臨んでいるので、可動把手２４の離開位置がロックされ、可動把手２４の握り込み操作が不可能となり、一対の係止手段２６は係合した状態となり、固定把手２２と可動把手２４を介して操作杆１６を開錠方向に引くことができない。
【００２７】
従って、操作バー１４の伏倒を途中までにして固定把手２２と可動把手２４を握っても、可動把手２４の離開位置のロックが解けないため、施錠機構６の開錠は不可能となり、脱出面格子１の格子枠４を開放することができない。
【００２８】
また、固定把手２２の傾斜面２７が水平より先端下がりに傾斜するまで操作バー１４を伏倒させると、図６（Ｂ）に実線で示すように、可動子２８は傾斜面２７を先端側に転動又は滑動して当接片３１から離反するので、可動把手２４のロックが解け、図７（Ａ）のように、可動把手２４の握り込み操作で一対の係止手段２６は係合が外れ、図７（Ａ）に示すように、固定把手２２と可動把手２４を介して操作杆１６を開錠方向に引くことができる。
【００２９】
このように、脱出操作装置７は、施錠機構６の開錠を行うのに、操作バー１４の水平状態への伏倒に加え、可動把手２４の握り込みと開錠方向への引っ張りの二つの操作を複合して同時に行うことが必要になり、この二つの同時操作は例え特殊な道具を用いたとしても室外からの遠隔操作で行うのを極めて困難にしており、したがって、室外から施錠機構６を簡単に開錠することができず、脱出操作装置７の安全性を大幅に向上させることができる。
【００３０】
なお、操作部材は、固定把手２２と可動把手２４の組み合わせだけでなく、両方を可動把手とし、両可動把手の各々と操作バー１４との間に係止手段２６を設けるようにしてもよく、また、脱出面格子１において、二枚の格子枠４が何れも開閉動できる場合、施錠機構６と脱出操作装置７は、外枠３の両側縦桟８にそれぞれ取り付けるようにすればよい。
【００３１】
図８は、脱出操作装置７の第２の実施の形態の要部を示している。なお、第１の実施の形態と同一部分には同一符号を付して説明に代える。以降の実施の形態も同様である。
【００３２】
この第２の実施の形態の脱出操作装置７は、ロック機構Ａが、操作杆１６の先端に固定した固定把手２２の内部に、操作バー１６を水平に伏倒した状態で先端下がりとなるガイド軸３２を設け、このガイド軸３２に貫通孔によって可動子２８を該ガイド軸３２に沿って移動自在となるよう取り付け、可動把手２４の内面でピン２３寄りの位置に可動子２８に対する当接片３１を設けた構造になっている。
【００３３】
上記可動子２８は、操作バー１４を伏倒させて固定把手２２のガイド軸３２が水平になるまでは、図８（Ａ）のように固定把手２２と可動把手２４間の根元部分に位置し、当接片３１がこの可動子２８の外面に臨んでいるので、可動把手２４の離開位置がロックされ、可動把手２４の握り込み操作が不可能となり、一対の係止手段２６は係合した状態のままとなり、固定把手２２と可動把手２４を介して操作杆１６を開錠方向に引くことができない。
【００３４】
また、固定把手２２のガイド軸３２が水平より先端下がりに傾斜するまで操作バー１４を伏倒させると、図８（Ｂ）のごとく、可動子２８はガイド軸３２に沿って先端側に滑動して当接片３１から離反するので、可動把手２４のロックが解け、可動把手２４の握り込み操作で一対の係止手段２６は係合が外れ、握り込みのままで固定把手２２と可動把手２４を介して操作杆１６を開錠方向に引くことができる。
【００３５】
図９は、脱出操作装置の第３の実施の形態の要部を示している。この第３の実施の形態の脱出操作装置７においては、操作バー１４の先端に設けたケース２１を長く形成し、操作杆１６を長さ方向へ移動操作するための固定把手２２と可動把手２４の全長をこのケース２１内に収めることにより、室外から固定把手２２と可動把手２４の開錠のための操作をより困難にしたものである。
【００３６】
図示の場合、可動把手２４は、操作バー１４を水平に伏倒させたとき、固定把手２２に対して下側に位置し、操作杆１６の先端にピン２３で枢止され、操作バー１４を水平に伏倒した状態で先端下がりとなる傾斜溝３３内にコロを用いた可動子２８を移動自在に収納し、固定把手２２の傾斜溝３３に臨む根元寄りの位置に、可動子２８に対する当接片３１を設けてロック機構Ａを形成している。
【００３７】
また、操作バー１４の先端に固定され、固定把手２２と可動把手２４を収納するケース２１は角筒状となり、該ケース２１の下部と可動把手２４の下部に設けた一対の係止手段２６が係合する状態で、ケース２１の両側壁３４は固定把手２２と可動把手２４の先端部の位置に延び、ケース２１の上壁３５と下壁３６は固定把手２２と可動把手２４の先端部を上下から摘めるように短くなっている。なお、一対の係止手段２６は、可動把手２４に設けた突起２９と、ケース２１の下壁３６に設けた係合孔３０ａとで形成されている。
【００３８】
このように、ケース２１の両側壁３４を長くして固定把手２２と可動把手２４がその内側に納まるようにすると、固定把手２２と可動把手２４を上下からしか摘むことができず、特殊な工具による室外からの開錠のための操作をより困難にすることができる。
【００３９】
この発明の後付面格子の脱出操作装置は、上記のような構成であり、第１の実施の形態の脱出操作装置７を用いてその作用を説明する。
【００４０】
通常は脱出面格子１の格子枠４を閉めた状態にして脱出操作装置７の操作バー１４を起立状態に起こし、外枠３の縦桟８内に収納しておけば、操作バー１４は室外から見えないと同時に施錠機構６は施錠状態となり、脱出面格子１を室外側から開放することができない。このとき操作バー１４を起立状態に起こすと、ロック機構Ａの可動子２８は下降位置にあって固定把手２２と可動把手２４の根元にあり、該可動子２８は当接片３１に臨んでいるので、固定把手２２と可動把手２４を握っても可動把手２４の回動は不可となり、一対の係止手段２６は係合状態のままとなる。
【００４１】
このような脱出操作装置７の状態は、操作バー１４を略水平に倒すまでの間維持されるので、室外側から脱出面格子１の格子枠４に手を入れて操作バー１４を少し倒し、固定把手２２と可動把手２４を握っても可動把手２４を回動させることができず、一対の係止手段２６は係合状態のままであるので、固定把手２２と可動把手２４を介して操作杆１６を開錠方向に引くことができず、脱出面格子１の格子枠４を開いて室内に侵入することはできない。
【００４２】
次に、火災等の発生で室内から窓を介して室外に脱出する場合は、外枠３の縦桟８内に収納された起立状態の操作バー１４を室内側へ水平に倒す。操作バー１４が水平になると、ロック機構Ａは、可動把手２４に設けた傾斜溝２７が先端下がりとなり、可動子２８がこの傾斜溝２７の先端側に移動して当接片３１から離反する。
【００４３】
上記のように、操作バー１４を水平に倒した状態で、固定把手２２と可動把手２４を握ると、可動把手２４が回動して一対の係止手段２６は係合が外れ、従って、固定把手２２と可動把手２４を握ったままこれを引っ張ると操作杆１６は開錠方向へ一体に移動し、施錠機構６は開錠状態となり、これによって脱出面格子１の格子枠４を室内側から開放することができ、脱出面格子１を開放して窓から室外に脱出することができる。
【００４４】
ここで、上記操作バー１４は成人の手よりも長い長さを有し、脱出操作装置７の要部はその先端に設けられているので、平時において操作バー１４を水平に倒しても、室外側から手を入れて脱出操作装置７を直接操作することはできないと共に、開錠のためには、固定把手２２と可動把手２４を握って一対の係止手段２６の係合を外し、この係合を外した状態を維持したまま固定把手２２と可動把手２４を引っ張るという二つの動作を複合して行う必要があり、このような複合動作を室外側から工具を用いて遠隔操作で行うのは至難の技であり、実質的に室外からの脱出面格子１の開放を不可能にしている。
【００４５】
なお、何れの実施の形態においても、施錠機構６は図示の構造に特定されるものではなく、操作杆１６を押したり引いたりする以外に、操作杆を回転させることにより、施錠と開錠が行える機構を採用してもよく、この場合、操作バー１４に対して、操作部材は操作杆を回転させることができるように回転可能とし、操作バー１４と操作部材の間に、操作バー１４に対して操作部材の回転を止める係止手段を設け、操作部材内に組み込んだロック機構で、該係止手段のロックとその解除を行うような構造を採用してもよい。
【００４６】
【発明の効果】
以上のように、この発明によると、後付面格子枠の少なくとも一方縦枠桟に、成人の手よりも長い長さを有する操作バーを起伏回動が自在となるよう取り付け、この操作バーの内部に長さ方向への移動が可能となり、長さ方向への移動操作によって施錠機構の施錠と開錠を操作することができる操作杆を収納し、前記操作杆の先端部に該操作杆を長さ方向に移動操作するための操作部材を設け、操作バーを水平に伏倒させた状態でのみ操作部材の複合操作を可能にし、この複合操作によって施錠機構を開錠できるようにしたので、室外側から脱出面格子に手を入れて操作バーを少し倒し、ロック機構を操作しようとしても操作部材の固定を解除することができず、脱出面格子を開いて室内に侵入することはできないと共に、操作バーを水平に倒した状態で開錠するためには、操作部材の握り込みと引っ張りとの複数の操作を同時に複合して行わなければならず、これによって、室外側から特殊な道具を用いても開錠操作を行うのは非常に困難となり、脱出面格子の安全性を大幅に向上させることができる。
【図面の簡単な説明】
【図１】（Ａ）は脱出面格子の室内側から見た正面図、（Ｂ）は同側面図、（Ｃ）は同横断平面図
【図２】従来の脱出面格子における施錠機構と脱出操作装置の要部を示す施錠状態の横断平面図
【図３】同上における施錠機構と脱出操作装置の要部を示す開錠状態の横断平面図
【図４】同上における施錠機構と脱出操作装置を示す施錠状態の縦断側面図
【図５】同上における施錠機構と脱出操作装置を示す開錠状態の縦断側面図
【図６】（Ａ）はこの発明に係る脱出操作装置の第１の実施の形態の施錠状態を示す縦断側面図、（Ｂ）はこの脱出操作装置を水平に伏倒させた状態の縦断側面図
【図７】同上において、脱出操作装置の操作部材のロックを解いた縦断側面図、（Ｂ）は開錠状態の縦断側面図
【図８】（Ａ）はこの発明に係る脱出操作装置の第２の実施の形態の施錠状態を示す縦断側面図、（Ｂ）はこの脱出操作装置を水平に伏倒させた状態の縦断側面図
【図９】（Ａ）はこの発明に係る脱出操作装置の第３の実施の形態を示す分解斜視図、（Ｂ）はこの脱出操作装置を水平に伏倒させた状態の縦断側面図
【符号の説明】
１脱出面格子
３外枠
４格子枠
６施錠機構
７脱出操作装置
１４操作バー
１６操作杆
２１ケース
２２固定把手
２４可動把手
２５スプリング
２６係止手段
２７傾斜面
２８可動子
３１当接片
３２ガイド軸
３３傾斜溝
Ａロック機構[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an escape operation device for a retrofitted lattice attached to an existing sash provided in a window of a building.
[0002]
[Prior art]
For the purpose of crime prevention and decoration, a surface grid is installed outside the window of a general house to prevent intrusion from the outside, but the fixed surface of the type where the surface grid is fixed to a sash or building frame If it is a lattice, it will be impossible to escape from the window in the event of an emergency such as a fire, etc., leading to an accident in which people inside the room are trapped and burnt.
[0003]
Therefore, opening and closing type escape that can be opened and closed from the inside of the room through the window by opening the face grid from the indoor side to achieve the purpose of crime prevention in the closed state and at the same time opening it in emergency emergency A face grid has been proposed.
[0004]
As shown in FIG. 1, the escape surface grid 1 includes at least one of two grid frames 4 capable of closing the inside of the outer frame 3 in an outer frame 3 fixed to a sash 2 or a building frame. The outer frame 3 is provided with a locking mechanism 6 for locking the movable grating frame 4 in the closed position, and the locking mechanism from the indoor side in an emergency. 6 is provided with an escape operation device 7 for allowing the movable grid frame 4 to move to the open position, and the escape operation device 7 has a function that cannot be unlocked from the outdoor side. Is required.
[0005]
2 to 5 show a conventional locking mechanism 6 in the escape surface lattice 1 and an escape operation device 7 for operating the locking mechanism 6, and the locking mechanism 6 is fixed to a lower position of the vertical beam 8 of the outer frame 3. 9, the key plate 10 is held so as to be movable in and out of the chamber along a horizontal slot 11 provided in the case member 9, and the movable grid frame 4 on the vertical beam 4 a of the movable grid frame 4. The locking member 12 is fixed so that the key plate 10 is detachable when the key plate 10 is in the closed position, and the key plate 10 is engaged with the locking hole 13 of the locking member 12 with the movable lattice frame 4 in the closed position. If combined, the movable grid frame 4 is locked.
[0006]
The escape operation device 7 has an up-and-down rotation that projects an operation bar 14 having a length longer than that of an adult's hand from the standing state along the vertical rail 8 of the outer frame 3 to the indoor side in the horizontal state on the case member 9. Is attached with a pin 15 so as to be freely movable, and it is possible to move in the length direction inside the operation bar 14, and the locking and unlocking of the key plate 10 in the locking mechanism 6 is operated by the movement operation in the length direction. The operation lever 16 is accommodated, and the end of the operation rod 16 and the key plate 10 are coupled by a pin 18 penetrating a horizontal long hole 11 provided in the case member 9 and a long hole 17 provided in the operation bar 14. The operation bar 19 is connected and protrudes from the front end of the operation bar 14 to the front end of the operation bar 16, and is provided with an operation member 19 for moving the operation bar 14 in the length direction.
[0007]
As shown in FIG. 2, when the operation member 19 is pushed into the operation bar 14 and is in the locked position where the key plate 10 is engaged with the locking member 12, the coupling pin 18 between the key plate 10 and the operation rod 16. Is arranged coaxially with the pivot pin 15 of the operation bar 14, and the operation bar 14 and the operation rod 16 accommodated in the operation bar 14 can be pivoted up and down with the coupling pin 18 and the pivot pin 15 as fulcrums. When the operation bar 14 is stood up and stored in the vertical beam 8 of the outer frame 3, in an emergency situation, as shown in FIG. The key plate 10 is removed from the locking member 12 to be unlocked, and the movable lattice frame 4 can be opened.
[0008]
When the operation bar 14 is at an angle other than horizontal, the long hole 17 of the operation bar 14 has an angle with respect to the long hole 11 of the case member 9, and the key plate 10 in which the coupling pin 18 is accommodated in both the long holes 11, 17. Can no longer be moved, and does not move even if the operation member 19 is pulled, and the locked state is maintained.
[0009]
When the operation bar 14 is tilted horizontally, the long hole 17 of the operation bar 14 is parallel to the long hole 11 of the case member 9, and the key plate 10 in which the coupling pin 18 is accommodated in both the long holes 11 and 17 can be moved. Therefore, when the operation member 19 is pulled, the operation rod 16 and the key plate 10 are moved together to be in an unlocked state.
[0010]
[Problems to be solved by the invention]
By the way, the above-described conventional escape operation device sets the operation bar 14 to be longer than an adult's hand so that it does not reach the operation member 19 even if a hand is inserted from the outdoor side in a state of being tilted horizontally. Although it cannot be pulled directly by hand, a special tool is prepared, this tool is inserted from the outside of the room with the operation bar 14 tilted horizontally, the operation member 19 is grasped with the tool, pulled, and opened. There is a risk of being locked.
[0011]
This is because the above-described conventional escape operation device can be unlocked by a single operation by simply pulling the operation member 19 while the operation bar 14 is tilted horizontally. This is because the operation of pulling 19 can be easily performed.
[0012]
Therefore, an object of the present invention is to make it necessary to perform a plurality of complex operations for operating the operation member for unlocking the state where the operation bar is tilted horizontally. It is an object of the present invention to provide an escape operation device for a retrofitted surface grid, which is difficult even if a simple tool is used and can greatly improve the safety of the escape surface grid.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 attaches an openable / closable rear lattice to the outside of a sash provided in a window of a building, and locks the closed lattice on the rear lattice. In a back-facing lattice escape operation device provided with a locking mechanism so that locking and unlocking of the locking mechanism can be operated from the indoor side, at least one vertical frame rail of the back-facing lattice frame has an adult An operation bar having a length longer than that of the hand is attached so as to be freely turned up and down, and an operation bar for operating locking and unlocking of the locking mechanism is housed inside the operation bar, and the tip of the operation bar An operating member for operating the operating rod is provided at the portion, and a locking means for fixing the operating member to the operating bar in the locked state of the locking mechanism is provided at the operating member and the tip of the operating bar. The operating member holds the locked state of the locking means, and the operation bar It is obtained by employing the incorporating a locking mechanism which allows the release of the locking means only in a state where the horizontal Fushimi defeated configuration.
[0014]
According to a second aspect of the present invention, in the first aspect of the invention, the operating member is fixed to the distal end of the operating rod, and is pivotally pivoted to the distal end of the operating rod. It consists of a movable handle with elasticity that always releases, and the operating handle is in the locking position of the locking mechanism, and the movable handle is engaged at the releasing position, and the operating handle is unlocked. Provided with a pair of locking means to prevent movement to the lock mechanism, the locking mechanism is provided with an inclined surface that is lowered at the tip with the operating bar horizontally lying down, between the fixed handle and the movable handle facing surface In addition, when the movable handle is positioned at the upper end of the inclined surface, the movable handle is locked in the above-mentioned position, and the operation bar is moved horizontally to the lower end of the inclined surface to lock the movable handle. A configuration in which a movable element to be solved is provided is employed.
[0015]
According to a third aspect of the present invention, in the first aspect of the invention, the operation member is fixed to the distal end of the operating rod, and is pivotally pivoted to the distal end side of the operating rod. It consists of a movable handle with elasticity that always releases, and the operating handle is in the locking position of the locking mechanism, and the movable handle is engaged at the releasing position, and the operating handle is unlocked. Provided with a pair of locking means to prevent movement to the lock mechanism, the locking mechanism is provided with an inclined guide shaft that is lowered at the end with the operation bar horizontally lying down on one handle, and the opposing surface of the fixed handle and the movable handle In the meantime, it can move along the tilt guide shaft , and when it is located at the up end of the tilt guide shaft , it locks the above-mentioned release position of the movable handle, and the tilt of the tilt guide shaft in a phase state in which the operation bar is lying down horizontally. Move to the lower end and unlock the movable handle Doko is obtained by adopting the configuration that is formed by providing a.
[0016]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, the operation member is a pulling or rotating operation for locking and unlocking the locking mechanism with respect to the operation bar. A plurality of moving operations different from the engaging / disengaging operation for engaging / disengaging the locking means provided for fixing to the operation bar are possible, and the lock mechanism provided on this operation member is a phase in which the operation bar is horizontally laid down The structure which enables engagement / disengagement of the locking means only in the state is adopted.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
As shown in FIG. 1, the escape plane lattice 1 is fixed to a sash 2 provided in a window of a building or a building frame by using a well-known attachment means, and is arranged inside an outer frame 3 arranged outside the sash 2. In addition, two lattice frames 4 capable of closing the inside of the outer frame 3 are incorporated so that at least one of the lattice frames 4 can be moved along the rails 5 provided on the upper and lower horizontal rails of the outer frame 3. The locking mechanism 6 for locking the movable grid frame in the closed position at the lower position of the one vertical rail 8 of the outer frame 3 and the locking mechanism 6 from the indoor side in an emergency emergency are unlocked. An escape operation device 7 is provided for enabling the movable grid frame 4 to move to the open position.
[0019]
The structure of the locking mechanism 6 and a part of the structure of the escape operation device 7 to be described later are the same as those described in the section of the prior art shown in FIG. 1 to FIG. In addition to the use, the same reference numerals are given to the same parts to replace the description. The escape surface grid 1 to which the escape operation device 7 is attached is not only a sliding type of two lattice frames 4 as shown in the figure, but also a single-open type in which one lattice frame is fixed to an outer frame, and two lattice frames. One lattice frame is fixed to the outer frame, and the other lattice frame can be moved from a closed position where it is aligned with the one lattice frame to an open position that overlaps the outer surface of the one lattice frame. It may be a structure such as a thing.
[0020]
6 and 7 show the main part of the escape operation device according to the first embodiment.
The escape operation device 7 of the first embodiment has a pipe operation bar 14 on the outer frame 3 of the escape surface lattice 1 having a length longer than that of an adult hand similar to that shown in FIGS. Is attached so as to be able to freely turn up and down so as to protrude horizontally from the standing state along the vertical rail of the outer frame 3 to the indoor side, and can be moved in the longitudinal direction inside the operation bar 14. An operating rod 16 for operating locking and unlocking of the locking mechanism 6 by a moving operation in the vertical direction is accommodated, and the tip of the operating rod 16 protrudes from a case 21 provided at the tip of the operation bar 14, A fixed handle 22 for moving the operating rod 16 in the length direction, a movable handle 24 pivoted on the operating rod 16 with a pin 23 and freely swingable, and a movable handle 24 with respect to the fixed handle 22. A spring 25 is provided to give elasticity that is always released. 22 and the movable handle 24, the operating member of the locking and unlocking of the locking mechanism 6.
[0021]
The movable handle 24 is located on the upper side of the fixed handle 22 when the operation bar 14 is horizontally laid down as shown in FIG. The fixed handle 22 is fixed to the tip of the operating rod 16, and the spring 25 is contracted between the opposed surfaces of the fixed handle 22 and the movable handle 24.
[0022]
The movable handle 24 and the case 21 provided on the operation bar 14 are engaged with each other when the operating rod 16 is in the locking position of the locking mechanism 6 and the movable handle 24 is in the release position with respect to the fixed handle 22. A pair of locking means 26 for preventing the movement of the operating rod 16 in the unlocking direction is provided. The locking means 26 is formed by a protrusion 29 provided on the outer surface of the movable handle 24 and an engagement piece 30 provided on the opening edge of the case 21.
[0023]
Inside the fixed handle 22 and the movable handle 24, a lock mechanism that holds the engagement state of the pair of locking means 26 and enables the locking means 26 to be detached only when the operation bar 14 is tilted horizontally. A is incorporated.
[0024]
The lock mechanism A is provided with an inclined surface 27 that is lowered at the tip when the operation bar 14 is horizontally laid down on the inner surface of the fixed handle 22 facing the movable handle 24, and the opposite surface of the fixed handle 22 and the movable handle 24. In the meantime, when the movable handle 24 is positioned at the up-side end near the pin 23 of the inclined surface 27, the above-mentioned open position of the movable handle 24 is locked, and the down-side end of the inclined surface 27 in a phase state in which the operation bar 14 is horizontally laid down. A movable element 28 that unlocks the movable handle 24 is incorporated, and a contact piece 31 against the movable element 28 is provided on the inner surface of the movable handle 24 at a position near the pin 23.
[0025]
The mover 28 can be a ball, a roller, or a square shaft, and these may be formed of metal, hard resin, glass, or the like.
[0026]
The movable element 28 is positioned at the root portion between the fixed handle 22 and the movable handle 24 as shown in FIG. 6A until the operation bar 14 is laid down and the inclined surface 27 of the fixed handle 22 becomes horizontal. Since the abutting piece 31 faces the movable element 28, the release position of the movable handle 24 is locked, the gripping operation of the movable handle 24 becomes impossible, and the pair of locking means 26 are engaged. Thus, the operating rod 16 cannot be pulled in the unlocking direction via the fixed handle 22 and the movable handle 24.
[0027]
Accordingly, even if the fixed handle 22 and the movable handle 24 are gripped with the operation bar 14 halfway down, the unlocking position of the movable handle 24 cannot be unlocked, so that the locking mechanism 6 cannot be unlocked and escaped. The lattice frame 4 of the surface lattice 1 cannot be opened.
[0028]
When the operation bar 14 is tilted down until the inclined surface 27 of the fixed handle 22 is inclined downward from the horizontal, as shown by the solid line in FIG. Since the movable handle 24 is released from the contact piece 31 by rolling or sliding, the pair of locking means 26 is engaged by the gripping operation of the movable handle 24 as shown in FIG. The operation rod 16 can be pulled in the unlocking direction via the fixed handle 22 and the movable handle 24 as shown in FIG.
[0029]
In this way, the escape operation device 7 performs the unlocking of the locking mechanism 6 in addition to the operation bar 14 lying down in the horizontal state, the grasping of the movable handle 24 and the pulling in the unlocking direction. It is necessary to perform operations simultaneously in combination, and these two simultaneous operations are extremely difficult to perform by remote operation from outside even if a special tool is used. Cannot be unlocked easily, and the safety of the escape operation device 7 can be greatly improved.
[0030]
The operation member is not limited to the combination of the fixed handle 22 and the movable handle 24, but both may be movable handles, and the locking means 26 may be provided between each of the movable handles and the operation bar 14. Further, when both of the two lattice frames 4 can be opened and closed on the escape surface lattice 1, the locking mechanism 6 and the escape operation device 7 may be respectively attached to the vertical bars 8 on both sides of the outer frame 3.
[0031]
FIG. 8 shows a main part of the second embodiment of the escape operation device 7. Note that the same parts as those in the first embodiment are denoted by the same reference numerals and are not described. The same applies to the following embodiments.
[0032]
In the escape operation device 7 according to the second embodiment, the lock mechanism A is a guide that is lowered at the tip in a state where the operation bar 16 is horizontally lying down inside the fixed handle 22 fixed to the tip of the operation rod 16. A shaft 32 is provided, and the movable element 28 is attached to the guide shaft 32 through a through hole so as to be movable along the guide shaft 32. The contact piece with respect to the movable element 28 is located near the pin 23 on the inner surface of the movable handle 24. 31 is provided.
[0033]
The movable element 28 is positioned at the base portion between the fixed handle 22 and the movable handle 24 as shown in FIG. 8A until the operation bar 14 is tilted down and the guide shaft 32 of the fixed handle 22 becomes horizontal. Since the abutting piece 31 faces the outer surface of the movable element 28, the release position of the movable handle 24 is locked, the gripping operation of the movable handle 24 becomes impossible, and the pair of locking means 26 are engaged. The state remains, and the operating rod 16 cannot be pulled in the unlocking direction via the fixed handle 22 and the movable handle 24.
[0034]
When the operation bar 14 is tilted down until the guide shaft 32 of the fixed handle 22 is tilted downward from the horizontal, the movable element 28 slides toward the distal end along the guide shaft 32 as shown in FIG. Accordingly, the movable handle 24 is unlocked, and the pair of locking means 26 are disengaged by the gripping operation of the movable handle 24, and the fixed handle 22 and the movable handle 24 are held while being gripped. The operating rod 16 can be pulled in the unlocking direction via the.
[0035]
FIG. 9 shows a main part of a third embodiment of the escape operation device. In the escape operation device 7 of the third embodiment, a case 21 provided at the tip of the operation bar 14 is formed long, and a fixed handle 22 and a movable handle 24 for moving the operation rod 16 in the length direction. Is stored in the case 21 to make the operation of unlocking the fixed handle 22 and the movable handle 24 from the outside more difficult.
[0036]
In the case of illustration, the movable handle 24 is positioned below the fixed handle 22 when the operation bar 14 is horizontally laid down, and is pivotally supported by the pin 23 at the tip of the operation rod 16 so that the operation bar 14 is A movable element 28 using a roller is movably accommodated in an inclined groove 33 which is lowered at the tip in a state of being horizontally lying down, and the contact with respect to the movable element 28 is positioned at a position near the root facing the inclined groove 33 of the fixed handle 22. The contact piece 31 is provided to form the lock mechanism A.
[0037]
A case 21 that is fixed to the tip of the operation bar 14 and accommodates the fixed handle 22 and the movable handle 24 has a rectangular tube shape, and a pair of locking means 26 provided at the lower part of the case 21 and the lower part of the movable handle 24 are provided. In the engaged state, both side walls 34 of the case 21 extend to the positions of the distal ends of the fixed handle 22 and the movable handle 24, and the upper wall 35 and the lower wall 36 of the case 21 extend the distal ends of the fixed handle 22 and the movable handle 24. It is shortened so that it can be picked from above and below. The pair of locking means 26 is formed by a protrusion 29 provided on the movable handle 24 and an engagement hole 30 a provided on the lower wall 36 of the case 21.
[0038]
As described above, when the side walls 34 of the case 21 are lengthened so that the fixed handle 22 and the movable handle 24 are accommodated inside thereof, the fixed handle 22 and the movable handle 24 can be picked only from above and below, and a special tool is used. It is possible to make the operation for unlocking from the outside by more difficult.
[0039]
The escape operation device for the back face lattice of the present invention has the above-described configuration, and the operation thereof will be described using the escape operation device 7 of the first embodiment.
[0040]
Normally, if the lattice bar 4 of the escape surface lattice 1 is closed and the operation bar 14 of the escape operation device 7 is raised and stored in the vertical beam 8 of the outer frame 3, the operation bar 14 is outdoors. At the same time, the locking mechanism 6 is locked, and the escape surface grid 1 cannot be opened from the outdoor side. When the operation bar 14 is raised at this time, the movable element 28 of the lock mechanism A is in the lowered position and is at the base of the fixed handle 22 and the movable handle 24, and the movable element 28 faces the contact piece 31. Therefore, even if the fixed handle 22 and the movable handle 24 are gripped, the movable handle 24 cannot be rotated, and the pair of locking means 26 remains engaged.
[0041]
Since the state of the escape operation device 7 is maintained until the operation bar 14 is tilted substantially horizontally, the operation bar 14 is slightly tilted by putting the hand into the lattice frame 4 of the escape plane lattice 1 from the outdoor side, Even if the fixed handle 22 and the movable handle 24 are gripped, the movable handle 24 cannot be rotated, and the pair of locking means 26 remains in an engaged state, so that the operation is performed via the fixed handle 22 and the movable handle 24. The heel 16 cannot be pulled in the unlocking direction, and the lattice frame 4 of the escape surface lattice 1 cannot be opened to enter the room.
[0042]
Next, in case of escape from the room through the window due to the occurrence of a fire or the like, the standing operation bar 14 housed in the vertical beam 8 of the outer frame 3 is horizontally lowered to the indoor side. When the operation bar 14 becomes horizontal, the locking mechanism A has the inclined groove 27 provided in the movable handle 24 lowered at the tip, and the movable element 28 moves away from the contact piece 31 by moving toward the distal end side of the inclined groove 27.
[0043]
As described above, when the fixed handle 22 and the movable handle 24 are gripped in the state where the operation bar 14 is tilted horizontally, the movable handle 24 is rotated and the pair of locking means 26 are disengaged. When the handle 22 and the movable handle 24 are pulled while being pulled, the operating rod 16 moves integrally in the unlocking direction, and the locking mechanism 6 is unlocked, whereby the lattice frame 4 of the escapement surface lattice 1 is moved from the indoor side. It can be opened, and the escape surface grid 1 can be opened to escape from the window to the outside.
[0044]
Here, the operation bar 14 has a length longer than that of an adult's hand, and the main part of the escape operation device 7 is provided at the tip thereof. The escape operation device 7 cannot be directly operated by putting a hand from the outside, and for unlocking, the fixed handle 22 and the movable handle 24 are grasped to disengage the pair of locking means 26, It is necessary to perform a combination of the two operations of pulling the fixed handle 22 and the movable handle 24 while maintaining the disengaged state, and such a combined operation is performed remotely from the outside using a tool. This is an extremely difficult technique, and it is substantially impossible to open the escape plane lattice 1 from the outside.
[0045]
In any of the embodiments, the locking mechanism 6 is not limited to the structure shown in the drawing. In addition to pushing and pulling the operating rod 16, the locking mechanism 6 can be locked and unlocked by rotating the operating rod. In this case, the operation member can be rotated with respect to the operation bar 14 so that the operation rod can be rotated, and the operation bar 14 is provided between the operation bar 14 and the operation member. On the other hand, a structure may be employed in which a locking means for stopping the rotation of the operating member is provided and the locking means is locked and released by a lock mechanism incorporated in the operating member.
[0046]
【The invention's effect】
As described above, according to the present invention, an operation bar having a length longer than that of an adult's hand is attached to at least one vertical frame rail of the back-faced lattice frame so as to freely turn up and down. An operating rod that can be moved in the lengthwise direction and can be operated to lock and unlock the locking mechanism by moving in the lengthwise direction is housed, and the operating rod is placed at the tip of the operating rod. Because the operation member for moving operation in the length direction is provided, the operation member can be combined only with the operation bar horizontally lying down, and the locking mechanism can be unlocked by this combined operation. Even if you try to operate the lock mechanism by putting the hand on the escape surface grid from outside the room and trying to operate the lock mechanism, you can not unlock the operation member, you can not open the escape surface grid and enter the room , Level the operation bar In order to unlock in such a state, it is necessary to simultaneously perform a plurality of operations of grasping and pulling the operation member, thereby allowing the unlocking operation to be performed even from the outside using a special tool. This is very difficult to do and can greatly improve the safety of the escapement surface grid.
[Brief description of the drawings]
FIG. 1A is a front view of an escape surface lattice as viewed from the room side, FIG. 1B is a side view thereof, and FIG. 2C is a cross-sectional plan view thereof. FIG. 3 is a cross-sectional plan view in the locked state showing the main part of the operating device. FIG. 3 is a cross-sectional plan view in the unlocked state showing the main part of the locking mechanism and the escape operation device. Fig. 5 is a longitudinal side view of the locking state shown in Fig. 5; Fig. 6A is a vertical side view of the unlocking state showing the locking mechanism and the escape operation device; Fig. 6A is a first embodiment of the escape operation device according to the present invention; Fig. 7B is a longitudinal side view of the escape operation device in a state where the escape operation device is horizontally laid down. Fig. 7 is a vertical side view of the operation member of the escape operation device unlocked. , (B) is a longitudinal side view of the unlocked state. [FIG. 8] (A) is an escape operation according to the present invention. FIG. 9B is a vertical side view showing the locking state of the second embodiment of the device, FIG. 9B is a vertical side view of the escape operation device horizontally laid down, and FIG. 9A is an escape according to the present invention. Exploded perspective view showing a third embodiment of the operating device, (B) is a longitudinal side view of the escape operating device in a state where it is horizontally laid down.
DESCRIPTION OF SYMBOLS 1 Escape surface lattice 3 Outer frame 4 Lattice frame 6 Locking mechanism 7 Escape operation device 14 Operation bar 16 Operation rod 21 Case 22 Fixed handle 24 Movable handle 25 Spring 26 Locking means 27 Inclined surface 28 Movable element 31 Contact piece 32 Guide shaft 33 Inclined groove A Lock mechanism

Claims

A rear-facing lattice that can be opened and closed is attached to the outside of the sash provided in the window of the building, and a locking mechanism that locks the closed state is provided on the rear-facing lattice, and the locking and unlocking of the locking mechanism is performed from the indoor side. In an escape operation device for a rear-facing lattice that can be operated, an operation bar having a length longer than that of an adult's hand can be freely turned up and down on at least one vertical frame of the rear-facing lattice frame. An operating rod for operating locking and unlocking of the locking mechanism is housed inside the operation bar, and an operating member for operating the operating rod is provided at the tip of the operating rod. Locking means for fixing the operation member to the operation bar in the locked state of the locking mechanism is provided at the end portion of the member and the operation bar, and the operation member holds the locking state of the locking means. It is possible to release the locking means only in the state where the It incorporates a locking mechanism escape operating device surface grating retrofitting, characterized in that.

The operating member comprises a fixed handle fixed to the tip of the operating rod, and a movable handle that is pivotally pivoted to the tip side of the operating rod and is provided with elasticity that always separates from the fixed handle, The movable handle and the operation bar are provided with a pair of locking means for preventing the movement of the operating rod in the unlocking direction when the operating rod is in the locking position of the locking mechanism and the movable handle is engaged in the release position, The locking mechanism is provided with an inclined surface that is lowered at the tip with the operation bar horizontally lying on one handle, and is movable when positioned on the upper end of the inclined surface between the opposed surfaces of the fixed handle and the movable handle. The movable part which locks the said release position of a handle and moves the operation bar to the lower end part of the inclined surface in a phase state where the handle bar is horizontally inclined to unlock the movable handle is provided. An escape operation device for the back-faced lattice described.

The operating member comprises a fixed handle fixed to the tip of the operating rod, and a movable handle that is pivotally pivoted to the tip side of the operating rod and is provided with elasticity that is always separated from the fixed handle, The movable handle and the operation bar are provided with a pair of locking means for preventing the movement of the operating rod in the unlocking direction when the operating rod is at the locking position of the locking mechanism and the movable handle is engaged at the release position, locking mechanism, the inclined guide shaft comprising a tip down the operation on one of the handle bar in a state of tilted horizontally facedown provided, between the facing surfaces of the stationary handle and a movable handle, the movement becomes freely along the inclined guide shaft, inclined When the guide bar is located at the upper end of the guide shaft, the movable handle is unlocked, and the operation bar is moved to the lower end of the inclined guide shaft in a horizontally inclined phase to unlock the movable handle. The movable element is provided and formed. Escape operation device after with a surface lattice.

The operation member engages / disengages a pulling or rotating operation for locking and unlocking the locking mechanism and a locking means provided to fix the operation member to the operation bar. A plurality of movement operations different from the engagement / disengagement operation are possible, and the lock mechanism provided on the operation member enables the engagement / disengagement operation of the locking means only in a phase state in which the operation bar is horizontally laid down. Item 4. The escape operation device for a back-faced lattice according to any one of Items 1 to 3.