JP2004285603A

JP2004285603A - Device for preventing disengagement of fittings, and wire screen

Info

Publication number: JP2004285603A
Application number: JP2003076430A
Authority: JP
Inventors: Seiichi Ueno; 誠一上野
Original assignee: Shin Nikkei Co Ltd
Current assignee: Shin Nikkei Co Ltd
Priority date: 2003-03-19
Filing date: 2003-03-19
Publication date: 2004-10-14

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for preventing disengagement of fittings, which can structurally reduce a thickness and which can be smoothly operated. <P>SOLUTION: In this device for preventing the disengagement of the fittings, a stopper 2 is pushed down along with erection, so that an elastic locking piece 6 can be bent to make an operation body 4 unlocked from a locking part 6a; the operation body 4 is moved sideways toward an operation part 2a by an urging force of a second elastic material 5; when the push-down of the stopper 2, associated with the completion of the erection of the fittings, is released, the stopper 2 is moved upward by an urging force of a first elastic member 3; the operation body 4 advances in the downward direction of the operation part 2a of the stopper by the urging force of the elastic member 5, along with an escape, from a moving passage, of the operation part 2a, associated with this movement, so that the descent of the stopper 2 can be regulated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、見込み幅の狭い建具、たとえば網戸のような建具に好適な建具の外れ止め装置、および、前記建具の外れ止め装置を設けた網戸に関する。
【０００２】
【従来の技術】
サッシ障子や網戸などの建具の上框あるいは竪框の上端に取り付けて、不用意な操作等により建具がレールから意図せず落下しないようにする種々の建具の外れ止め装置が知られている。
【０００３】
なかでも、網戸のように框の見込み幅の狭い建具を対象とするものは、薄型でかつ簡易な操作で機能するものが望まれており、かかる薄型で簡易に作動する建具の外れ止め装置として、建具の建て込み時に自動的に外れ止め機構が作動する外れ止め装置が、特許文献１（特公平６−８４７０３号公報）に開示されている。ここに開示される外れ止め装置は、図１１に示すように、建て込み時に、ストッパ１０２の上端部１０２ｘを上枠レールによって下方に押すことで、ケースの弾性係止片１０６の係止部１０６ａと操作体１０４の係止受部１０４ｂとの係止が解除され、操作体用バネ１０５の作用により、操作体１０４が横移動開始し、その横移動にともなってストッパ１０２側面に突出して形成されたピン１０２Ｐが操作体１０４の傾斜面１００Ｓを摺動して上方に移動することで、ストッパ１０２全体が上方に押し上げられる構成となっている。そして、傾斜面１００Ｓを上りきって前記ピン１０２Ｐが前記操作体１０４の平面部１００Ｆに位置することにより外れ止め機構が維持される。
【特許文献１】
特公平６−８４７０３号公報
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の外れ止め装置は、ストッパ２が上昇するには、操作体用バネ１０５の付勢力により操作体１０４が横移動し、ピン１０２Ｐが傾斜面１００Ｓ上を摺動しつつ上昇するいわゆる直動カム構成であるから、摺動による作動を前提としているので作動の円滑性に限界があり、ピン１０２Ｐに対して上方向へ曲げようとする曲げ力が加わる。また、図示例のようにストッパ２が上昇して外れ止めが作動している状態において、建具が外れようとした際にも、ピン１０２Ｐにこれを上方向へ曲げようとする曲げ力作用し、ピン１０２Ｐの負荷が非常に高いものとなる。
【０００５】
また、ケース１０１内において、ストッパ１０２にピン１０２Ｐを側方に突出させる必要がある関係で、ケース１０１内において操作体１０４の側方にストッパ２を配置しこれらを積層させる構造が必須となるため、外れ止め装置を見込み方向に幅狭に構成するにも限界がある。
【０００６】
そこで、本発明の主たる課題は、建具の外れ止め装置を、薄型化できる構造とし、かつ、円滑な作動を約束するものとすることある。他の課題は、当該外れ止め装置が取り付けられた網戸を提供することにある。
【０００７】
【課題を解決するための手段】
上記課題を解決した本発明およびその作用効果は次記のとおりである。
＜請求項１記載の発明＞
建具の上框または竪框上端部に対して取り付けられるケースと、
下部に作動部を有し、上下方向に移動自在にかつ上端部が前記ケース上面より突出して前記ケースに設けられ、前記建具の建て込み時における前記上端部の上枠レールへの押し上げに伴う反力により押し下げられるストッパと、
前記ストッパを上方に付勢する第１の弾性材と、
前記ケースに対し前記ストッパの作動部に対して横方向に移動自在に設けられた操作体と、
前記ケースに対し設けられ前記ストッパの作動部側に前方に付勢する第２の弾性材と、
前記ケースに設けられ、され前記操作体の移動路に臨み前記操作体の前面を係止する係止部を有し、前記ストッパを前記第１の弾性材に抗して下降させた際に前記ストッパの作動部の押し下げにより下方に撓み、前記係止部が前記操作体の移動路から逃げる弾性係止片とを有し；
前記係止部により前記第２の弾性材により付勢されている操作体の前記作動部側に前方への移動が止められた状態で、前記ストッパが押し下げられることにより、前記弾性係止片が撓んで前記操作体の前記係止部との係止が解除され、前記第２の弾性材の付勢力により前記操作体が横移動し、
前記建具の建て込み完了に伴う前記ストッパの押し下げが解放されるとき、前記第１の弾性部材の付勢力により前記ストッパが上方に移動し、この移動に伴う前記作動部の前記移動路からの逃げに伴って、前記操作体が前記第２の弾性材の付勢力により前記ストッパの作動部の下方に進出し、前記ストッパの下降が規制されるように構成したことを特徴とする建具の外れ止め装置。
【０００８】
＜請求項２記載の発明＞
操作体の室内側面に操作用凸部が設けられ、ケースの室内側面に横長の連通孔が設けられ、前記連通孔を介して前記操作用凸部がケース外に露出し、この操作用凸部を介してケース外から前記操作体を横移動させる操作が可能とされている請求項１記載の建具の外れ止め装置。
【０００９】
＜請求項３記載の発明＞
ストッパの上端部が、作動部に対して室内側方向にオフセットされ、かつ、その上端部に上枠レールに係合する上枠レール係合部が、前記上枠レールに対して摺動自在に設けられている請求項１または２記載の建具の外れ止め装置。
【００１０】
＜請求項４記載の発明＞
弾性係止片がケース底に形成され、かつ、そのケース底の前記弾性係止片から外れた位置に下方に突出する脚凸部が形成され、前記ケース底の下方に前記弾性係止片の撓みを許す空間が設けられている請求項１〜３の何れか１項に記載の建具の外れ止め装置。
【００１１】
＜請求項５記載の発明＞
請求項１〜４の何れか１項に記載の建具の外れ止め装置が、上框または竪框の上端部に取り付けられていることを特徴とする網戸。
【００１２】
（作用効果）
請求項１記載の発明においては、作動部を有するストッパに対して第１の弾性材を、操作体に対して第２の弾性材をそれぞれ設け、建具の建て込み完了に伴うストッパの押し下げが解放されるとき、第１の弾性部材の付勢力によりストッパが上方に移動し、この移動に伴う作動部の移動路からの逃げに伴って、操作体が第２の弾性材の付勢力により前記ストッパの作動部の下方に進出し、前記ストッパの下降が規制されるように構成した。したがって、従来の直動カム構造による連動方式を採ることなく、ストッパ及び操作体は個別に移動して外れ止め機能を発揮する。したがって、ストッパ及び操作体は個別に移動する限り、作動が確実かつ円滑となる。
【００１３】
また、ストッパ及び操作体は、実質的に同一面内に配置して外れ止め装置を構成できるので、薄型化でき、見込み幅の狭い建具、たとえば網戸のような建具に好適な建具の外れ止め装置となる。
【００１４】
操作体に対し、これをストッパの作動部側に付勢する第２の弾性材が設けられているので、ストッパが上方に移動し、この移動に伴う作動部の移動路からの逃げに伴って、操作体が第２の弾性材の付勢力によりストッパの作動部の下方に進出し、ストッパの下降が規制されるものとなる。したがって、仮に第２の弾性材を設けない場合には、操作体を手で移動させストッパの下降を規制する操作が必要となるが、その必要はなく、操作体の移動は自動化され、操作体の移動忘れなどの事態を招くことはなく、作動が確実なものとなる。
【００１５】
請求項２記載の発明によれば、ケース側面に露出する操作凸部を操作してケース内の操作体を横移動させる構成としたので、建具に取り付けたときに室内側前面での操作が可能となり、操作性に優れる。また、建具に取り付けたとき、特許文献１のように左右方向端部に操作体が露出する場合には、開閉操作の際に誤って操作してしまう虞れがあるが、室内側前面での操作構造の場合には誤作動の虞れはない。
【００１６】
請求項３記載の発明によれば、建具が上枠レールに対して室外側に持ち出される持ち出し構造としても、ストッパ形状を工夫することにより、請求項１記載の発明と同じ機能及び効果が得られる。
【００１７】
請求項４記載の発明によれば、ケース底に弾性係止片を形成し、ケース底の下方に脚凸部を形成することにより前記弾性係止片の撓みを許す空間を確保したので、弾性係止片を下方への撓みを許容する空間を建具に形成しなくてもよくなる。
【００１８】
請求項５記載の発明によれば、網戸における上記利点が顕著に現れる。
【００１９】
【発明の実施の形態】
次いで、本発明の実施の形態を図面を参照しながら以下に詳述する。
図１は、本発明の外れ止め装置Ｅを取り付けた網戸Ａおよびその網戸Ａを建て込む建て込み部分とを示す縦断面図である。上下枠５０，５１及び左右竪枠（図示せず）により構成される開口部枠内に、外障子５２及び内障子５３が設けられている。
【００２０】
前記網戸Ａは上框１０，下框２０及び左右竪框（図示せず）内に網体３０が収められ、上框１０に外れ止め装置Ｅが、その操作用凸部４ｃを室内側に露出させた状態に取り付けられている。図２は、本実施の形態の建具の外れ止め装置Ｅを示す分解斜視図である。図３は、ケース１内部の構成を建て込み前の状態で示す室内側から見た正面図である。図４は、建て込みに伴ってストッパが下方に押し下げられたときの、ケース内の構成を示す正面図である。図５は、建て込み完了に伴って、ストッパが上昇したときのケース内の構成を示す正面図である。
【００２１】
本実施の形態にかかる建具の外れ止め装置Ｅは、前記建具の上框１０または竪框上端部に対して取り付けられるケース１と、下部に作動部２ａを有し、上下方向に移動自在にかつ上端部２Ｘが前記ケース１上面より突出し、本体部分は前記ケース１内に設けられるストッパ２と、前記ストッパ２を上方に付勢するストッパ用コイルバネ３（第１の弾性材）と、前記ケース１に対し前記ストッパ２の作動部２ａに対して横方向に移動自在に設けられた操作体４と、前記ケース１内に設けられ前記ストッパ２の作動部２ａ側に操作体４を付勢する操作体用コイルバネ５（第２の弾性材）と、前記ケース１に設けられ、実施の形態ではケース１の底に形成され、前記ストッパ２を前記ストッパ用コイルバネ３に抗して下降させた際に、前記ストッパ２の作動部２ａの押し下げにより下方に撓み、かつ撓みの復帰時において前記操作体４の移動路に臨む弾性係止片６とを備える。
【００２２】
前記ケース１は、金属製でもよいが実施の形態では樹脂製とされ、正面が開口されたケース本体部１Ｘとケース蓋部１Ｙとからなり、ケース本体部１Ｘの開口をケース蓋体１Ｙにより閉塞してネジ止めおよび結合用係止部により結合することで構成される。前記ケース本体部１Ｘの上面側には切り欠き１ａが形成され、ケース蓋体１Ｙにより開口部を閉塞したときには、ケース内外に連通するストッパ用連通孔（窓）１Ｚがケース１の上面に形成される。
【００２３】
前記ケース本体部１Ｘの底面には、一端が自由端とされ基端がケース本体部１Ｘと一体となっている弾性係止片６が形成され、この弾性係止片６には、前記操作体４の横移動を規制する係止部６ａが上方に向かって突出している。なお、前記弾性係止片６はケース本体部１Ｘと別体としてもよく、また、ケース本体部１Ｘの底面にではなく、ケース１内の適宜の位置に設けることもできる。
【００２４】
前記ストッパ２は金属板（あるいは樹脂板）で形成され、上端部２Ｘに上枠５０の上枠レールＲｕへの接触性を良好にするため折り曲げ部２ｘが形成されている。前記上端部２Ｘは前記連通孔１Ｚを介してケース１の上方に向かって突出され、この上端部２Ｘより下側のケース内に位置されるケース内配置部２Ｙの下部に、ストッパ機構を実質的に開始させる作動部２ａと、ストッパ用コイルバネ３の外れを防止するストッパ用コイルバネ嵌合凸部２ｂが形成されている。前記作動部２ａは、前記弾性係止片６の自由端側に臨むがわに形成され、ストッパ２の下降にともなって前記弾性係止片６の自由端部に押圧して前記弾性係止片６を下方に撓ませる。
【００２５】
前記ストッパ２の下方に位置するストッパ用コイルバネ３（第１の弾性材）は、上端に前記ストッパ用コイルバネ嵌合凸部２ｂが嵌められ、下端部が前記ケース本体内１Ｘの底に形成されたストッパ用コイルバネ受溝１ｃに嵌められ、これらストッパ用コイルバネ嵌合凸部２ｂとストッパ用コイルバネ受溝１ｃとによってストッパ２から外れないように構成されている。そして、その弾圧力により前記ストッパ２を上方に付勢する。
【００２６】
一方、前記操作体４は樹脂製（あるいは金属製）であり、弾性係止片６上に横移動可能に位置されている。この操作体４の後面には前記操作体用コイルバネ５（第２の弾性材）の端部が挿入される操作体用コイルバネ挿入穴４ａが掘られ、操作体用コイルバネ５の端部が挿入されている。操作体用コイルバネ５の他方の端部は、ケース本体に形成された操作体用コイルバネ受け溝１ｄに嵌められ、操作体４から外れないようになっている。前記操作体４は、前記操作体用コイルバネ５の弾圧力により、ストッパ２及び弾性係止片６の自由端側に向かって付勢される。
【００２７】
また、前記操作体４の移動路の途中に、前記弾性係止片６の係止部６ａが位置しており、操作体４を操作体用コイルバネ５に抗して後方の所定位置まで移動させたときに、操作体４の下面側に突出部として形成された係止受部４ｂの前面と係合して、前記操作体４の作動部２ａ方向への移動を規制するものである。操作体４は、前記操作体４の係止受部４ｂと係止部６ａとの係合が解除されたときには、操作体用コイルバネ５の弾圧力によってストッパ２方向に移動する。
【００２８】
他方、操作体４のケース蓋面１Ｙ側には、操作体４の操作体用コイルバネ５に抗して移動させる操作を行うための操作凸部４ｃが形成されている。この操作凸部４ｃは前記ケース蓋体１Ｙに形成された、横長の操作孔１ｗからケース外の室内側に露出され、ケース外方から操作凸部４ｃを操作体用コイル５の伸張力に反して強制的に移動させることが可能とされている。ここで、前記操作凸部４ｃは誤動作防止のためケース側面から過度に突出しないように構成するのが望ましい。
【００２９】
上記構成の建具の外れ止め装置Ｅを取り付けた網戸を建て込む際には、予め、図３に示す前記操作凸部４ｃを指やドライバーで、前記操作体４を操作体用コイルバネ５に抗して移動させ、操作体用コイルバネ５を押し縮めて前記係止部６ａにより操作体５を係止した状態にしておく。
【００３０】
かかる状態において、網戸を建て込む操作を行うときに、上枠レールＲｕに前記ストッパ２の上端部２Ｘの折り曲げ部２ｘを接触させ、さらに上方にもち上げると、図４に示すように、その反力によりストッパ２の上端部２Ｘが押されてストッパ用コイルバネ３が押し縮められるとともに、前記作動部２ａが下降する。このとき、前記作動部２ａにより弾性係止片６の自由端側が下方に押されて撓み、この撓みよる弾性係止片６の下降にともなって、係止部６ａによる操作体４の係止が解除され、前記操作体用コイルバネ５の伸張力により前記操作体４が操作体ガイド壁に案内されながら弾性係止片６の自由端側へ向かってスライド移動して前記作動部２ａに圧接する。
【００３１】
その後、建具の建て込み完了により、上枠レールＲｕによる前記ストッパ上端部２Ｘへの押圧が解除されると、図５に示すように、前記ストッパ２が前記ストッパ用コイルバネ３の伸張力により上方へと移動し、作動部２ａの作動路が空くとともに、この作動路に操作体４が移動する。そうすると、前記作動部２ａの移動路が操作体４により塞がれて、ストッパ２の下降が抑制され、外れ止め機能が働く。
【００３２】
＜第２の実施の形態＞
次いで、第２の実施の形態を図６〜１０を参照しながら詳述する。第２の実施の形態にかかる外れ止め装置は、図６に示すように、持ち出し構造の網戸に対して取り付けられる。ケース１内の構造および動作は第１の実施の形態と同様であるが、本実施の形態では、図７に示されるように、ストッパ２の上端部の折り曲げ部２ｘが室内外側方向に向かって（図示例では、室内方向に向かって）延長され、ケース１の側方に向かって張り出している。そして、折り曲げ部２ｘの先端において上方に向かってさらに折り曲げられている。その先端部２ｚには、上枠レールＲｕに係合する上枠レール係合受部材７が取り付けられる。なお、折り曲げ部２ｘの張り出し長さや、先端部２ｚの高さは、建具の構造や建て込み部の構造に応じて適宜変更する。
【００３３】
前記上枠レール係合受部７は、図８および９に示すように、建て込み状態において、上枠レールＲｕの室内側（または室外側）において上方に突出する半円形状の半円凸片７ａと、上枠レールＲｕ挟んで室内側（または室外側）において上方に突出する係合凸片７ｂとを有する。これら、半円凸部７ａと係合凸部７ｂとの間に上枠レールＲｕが位置することにより建て込み時に、網戸Ａの室内外方向への倒れこみが防止される。また、前記上枠レール係合受部材７は、例えば樹脂製として上枠レールＲｕに対して摺動自在とすることにより、係合状態における網戸の開閉が可能とされる。
【００３４】
一方、本実施の形態では、図１０に示すように、前記ケース蓋部１Ｙを被覆するケースカバーＣｖを取り付けることができる。このケースカバーＣｖには前記折り曲げ部２ｘの室内外方向の延長を許す連通孔Ｈ_１と操作凸部４ｃの操作を可能とする操作孔Ｈ_２が設けられている。前記連通孔Ｈ_１に関しては、建て込みに伴うストッパの上下移動にともなって前記折り曲げ部２ｘも上下に移動するため、これを可能とすべく所定の高さ範囲に開口させ、前記操作孔Ｈ_２に関しては操作凸部４ｃの横移動が可能なるように横長に設けるのが望ましい。これらの連通孔Ｈ_１および操作孔Ｈ_２の構成は適宜変更することができる。
【００３５】
＜その他＞
上述の実施の形態に係る建具の外れ止め装置は、網戸等の建具の上框に取り付けた例であるが、竪框の上端に取り付けることも可能である。その他網戸の構成については特に限定されずに、公知技術の範囲で適宜設計することができる。また、上記実施例は、第１の弾性材、第２の弾性材としてコイルバネを用いた構成であるが、各弾性部材は、板バネであってもよいし、ゴム体であってもよい。また、双方の同じ種類の弾性材を用いる必要もない。その他、サッシ枠の構成等も従来技術の範囲で適宜設計することができる。
【００３６】
【発明の効果】
以上、詳述のとおり、本発明によれば、建具の外れ止め装置を薄型化できるとともに、円滑な作動が約束される。
【図面の簡単な説明】
【図１】第１の実施の形態にかかる外れ止め装置を設けた網戸およびその建て込み部の縦断面図である。
【図２】第１の実施の形態にかかる外れ止め装置の分解斜視図である。
【図３】第１の実施の形態にかかる外れ止め装置内部を示す正面図である。
【図４】第１の実施の形態にかかる外れ止め装置内部の動きを説明する図である。
【図５】第１の実施の形態にかかる外れ止め装置内部の動きを説明する他の図である。
【図６】第２の実施の形態に係る外れ止め装置を設けた持ち出し構造の網戸およびその建て込み部の縦竪断面図である。
【図７】第２の実施の形態にかかる外れ止め装置を説明するための斜視図である。
【図８】上枠レール係合受部を説明するための斜視図である。
【図９】上枠レール係合受部を説明するための他の斜視図である。
【図１０】第２の実施の形態にかかる外れ止め装置にカバーを取り付けた態様の斜視図である。
【図１１】従来の建具の外れ止め装置の構造を説明するための断面図である。
【符号の説明】
１…ケース、１Ｘ…ケース本体部、１Ｙ…ケース蓋部、２…ストッパ、２Ｘ…ストッパ上端部、２Ｙ…ケース内配置部、２ａ…作動部、１ａ…ストッパ用コイルバネ受け溝、３…ストッパ用コイルバネ（第１の弾性材）、４…操作体、５…操作体用コイルバネ（第２の弾性材）、６…弾性係止片、Ｅ…外れ止め装置。Ｃｖ…ケースカバー。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fitting stopper device suitable for a fitting with a narrow expected width, for example, a fitting such as a screen door, and a screen door provided with the fitting stopper device.
[0002]
[Prior art]
2. Description of the Related Art Various types of fixtures for preventing the fittings from being unintentionally dropped from the rail by being attached to the upper frame or the upper end of a vertical frame such as a sash shoji or a screen door so as to be inadvertently operated are known.
[0003]
Above all, those that are intended for fittings with narrow frame widths, such as screen doors, are desired to be thin and function with simple operation. Patent Document 1 (Japanese Patent Publication No. 6-84703) discloses a stopper device in which a stopper mechanism is automatically activated when a fitting is erected. As shown in FIG. 11, the stopper device disclosed herein pushes the upper end portion 102x of the stopper 102 downward by the upper frame rail at the time of erection, so that the locking portion 106a of the elastic locking piece 106 of the case is formed. The locking of the operating body 104 with the lock receiving portion 104b is released, and the operating body 104 starts to move laterally by the action of the operating body spring 105, and is formed to protrude from the side surface of the stopper 102 with the lateral movement. When the pin 102P moves upward by sliding on the inclined surface 100S of the operating body 104, the entire stopper 102 is pushed upward. Then, the pin 102P is positioned on the flat portion 100F of the operation body 104 after climbing up the inclined surface 100S, so that the detachment prevention mechanism is maintained.
[Patent Document 1]
Japanese Patent Publication No. 6-84703
[Problems to be solved by the invention]
However, in the above-mentioned conventional stopper device, in order to raise the stopper 2, the operating body 104 is moved laterally by the urging force of the operating body spring 105, and the pin 102P is raised while sliding on the inclined surface 100S. Since the linear motion cam is used, the operation by sliding is premised, so that the smoothness of the operation is limited, and a bending force for bending the pin 102P upward is applied. Further, in the state where the stopper 2 is raised and the stopper is operating as in the illustrated example, even when the fitting is going to come off, a bending force acts on the pin 102P to bend it upward, The load on pin 102P is very high.
[0005]
In addition, since the pins 102P need to protrude laterally from the stoppers 102 in the case 101, a structure in which the stoppers 2 are arranged on the sides of the operation body 104 in the case 101 and they are stacked is essential. In addition, there is a limit in configuring the stopper device to be narrow in the expected direction.
[0006]
Therefore, a main object of the present invention is to provide a fixture for retaining a fitting that has a structure that can be reduced in thickness and promises smooth operation. Another object is to provide a screen door to which the stopper device is attached.
[0007]
[Means for Solving the Problems]
The present invention which has solved the above-mentioned problems and the operation and effect thereof are as follows.
<Invention according to claim 1>
A case attached to the upper frame of the fitting or the upper end of the vertical frame,
An operating portion is provided at a lower portion, and the upper end portion is provided on the case so as to be movable vertically and the upper end protrudes from the upper surface of the case, and the upper end portion is pushed up to an upper frame rail when the fitting is erected. A stopper pressed down by force,
A first elastic member for urging the stopper upward;
An operating body provided movably in the lateral direction with respect to the operating portion of the stopper with respect to the case;
A second elastic member provided to the case and biasing forward to an operating portion side of the stopper;
A stopper provided on the case and facing a moving path of the operating body to lock a front surface of the operating body, wherein the stopper is lowered when the stopper is lowered against the first elastic material; An elastic locking piece that bends downward when the operating portion of the stopper is pressed down and that escapes from the movement path of the operating body;
The stopper is pushed down in a state where the operation body urged by the second elastic material by the second elastic material is stopped from moving forward on the operation unit side, whereby the elastic locking piece is moved. The operating body is disengaged from the locking portion of the operating body, and the operating body is laterally moved by the urging force of the second elastic member,
When the pressing down of the stopper accompanying the completion of the installation of the fitting is released, the stopper moves upward by the urging force of the first elastic member, and the operating portion escapes from the moving path due to the movement. Along with this, the operating body is advanced below the operating portion of the stopper by the urging force of the second elastic material, and the lowering of the stopper is restricted, so that the fitting is prevented from coming off. apparatus.
[0008]
<Invention according to claim 2>
An operation protrusion is provided on the indoor side surface of the operating body, a horizontally long communication hole is provided on the indoor side surface of the case, and the operation protrusion is exposed outside the case through the communication hole. The device for preventing a fitting from coming off according to claim 1, wherein an operation of laterally moving the operation body from outside of the case is enabled via the device.
[0009]
<Invention of Claim 3>
The upper end of the stopper is offset in the indoor side direction with respect to the operating portion, and the upper frame rail engaging portion engaging with the upper frame rail at the upper end thereof is slidable with respect to the upper frame rail. The device for preventing a fitting from coming off according to claim 1 or 2, which is provided.
[0010]
<Invention of Claim 4>
An elastic locking piece is formed at the bottom of the case, and a leg projection is formed at a position off the elastic locking piece at the bottom of the case to form a downwardly projecting leg. The fixture according to any one of claims 1 to 3, wherein a space that allows bending is provided.
[0011]
<Invention according to claim 5>
A screen door, wherein the fitting retaining device according to any one of claims 1 to 4 is attached to an upper end of an upper frame or a vertical frame.
[0012]
(Effect)
According to the first aspect of the present invention, the first elastic member is provided for the stopper having the operating portion, and the second elastic member is provided for the operating body, and the pressing down of the stopper accompanying the completion of the fitting is released. When the stopper is moved, the stopper is moved upward by the urging force of the first elastic member, and the operating body is moved by the urging force of the second elastic member along with the movement of the operating part from the moving path accompanying the movement. And the stopper is controlled to be lowered. Therefore, the stopper and the operating body move individually to exhibit the function of preventing the coming off, without using the interlocking method by the conventional linear motion cam structure. Therefore, as long as the stopper and the operating body are individually moved, the operation is assured and smooth.
[0013]
Further, since the stopper and the operating body can be arranged substantially in the same plane to constitute a stopper device, the stopper device can be reduced in thickness and is suitable for a fitting with a narrow expected width, for example, a fitting such as a screen door. It becomes.
[0014]
Since the operating body is provided with the second elastic material for urging the operating body toward the operating portion side of the stopper, the stopper moves upward, and the operating portion moves away from the moving path due to this movement. Then, the operating body advances below the operating portion of the stopper by the urging force of the second elastic material, and the lowering of the stopper is restricted. Therefore, if the second elastic member is not provided, an operation of moving the operating body by hand and restricting the lowering of the stopper is required. However, this is not necessary, and the movement of the operating body is automated, and the operating body is automated. It does not cause a situation such as forgetting to move, and the operation is assured.
[0015]
According to the second aspect of the present invention, since the operation body in the case is laterally moved by operating the operation projection exposed on the side surface of the case, the operation can be performed on the indoor side front surface when attached to the fitting. And excellent in operability. Further, when the operating body is exposed to the left and right ends as in Patent Document 1 when attached to a fitting, there is a possibility that the operating body may be erroneously operated at the time of opening / closing operation. In the case of the operation structure, there is no fear of malfunction.
[0016]
According to the third aspect of the invention, the same functions and effects as those of the first aspect of the invention can be obtained by devising the stopper shape even in a take-out structure in which the fitting is taken out of the room with respect to the upper frame rail. .
[0017]
According to the fourth aspect of the present invention, the elastic locking piece is formed on the bottom of the case, and the leg convex portion is formed below the bottom of the case to secure a space that allows the elastic locking piece to bend. It is not necessary to form a space in the fitting that allows the locking piece to bend downward.
[0018]
According to the fifth aspect of the invention, the above advantages in the screen door are remarkably exhibited.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing a screen door A to which the retaining device E of the present invention is attached and a laid portion into which the screen door A is laid. An outer sash 52 and an inner sash 53 are provided in an opening frame constituted by upper and lower frames 50 and 51 and left and right vertical frames (not shown).
[0020]
In the screen door A, the net 30 is accommodated in the upper frame 10, the lower frame 20, and the left and right vertical frames (not shown), and the retaining device E exposes the operation convex portion 4c to the indoor side in the upper frame 10. It is attached in the state where it was made to be. FIG. 2 is an exploded perspective view showing the fitting stopper device E according to the present embodiment. FIG. 3 is a front view showing the internal configuration of the case 1 in a state before being built, as viewed from the indoor side. FIG. 4 is a front view showing a configuration inside the case when the stopper is pushed down along with the erection. FIG. 5 is a front view showing the configuration inside the case when the stopper is raised with the completion of the installation.
[0021]
The fixture retainer E according to the present embodiment has a case 1 attached to the upper frame 10 or the upper end of the vertical frame, and an operating portion 2a at a lower portion. An upper end portion 2X protrudes from the upper surface of the case 1, a main body portion includes a stopper 2 provided in the case 1, a coil spring 3 for stopper for urging the stopper 2 upward (first elastic material), and the case 1 And an operation body 4 provided movably in the lateral direction with respect to the operation portion 2a of the stopper 2, and an operation provided in the case 1 to bias the operation body 4 toward the operation portion 2a of the stopper 2. When the stopper 2 is lowered against the stopper coil spring 3, the body coil spring 5 (second elastic material) is provided on the case 1 and is formed on the bottom of the case 1 in the embodiment. , The stopper During the deflection downward by depressing the actuating portion 2a, and the deflection of the return and a resilient locking pieces 6 facing the travel path of the operating body 4.
[0022]
The case 1 may be made of metal, but is made of resin in the embodiment, and includes a case body 1X and a case lid 1Y each having an open front, and the opening of the case body 1X is closed by a case lid 1Y. Then, they are connected by screwing and connecting locking portions. A notch 1a is formed on the upper surface side of the case main body 1X, and when the opening is closed by the case lid 1Y, a communication hole (window) 1Z for a stopper communicating with the inside and outside of the case is formed on the upper surface of the case 1. You.
[0023]
An elastic locking piece 6 whose one end is a free end and whose base end is integrated with the case main body 1X is formed on the bottom surface of the case main body 1X. A locking portion 6a for restricting the lateral movement of the projection 4 projects upward. The elastic locking piece 6 may be provided separately from the case body 1X, or may be provided at an appropriate position in the case 1 instead of the bottom surface of the case body 1X.
[0024]
The stopper 2 is formed of a metal plate (or a resin plate), and a bent portion 2x is formed at the upper end 2X to improve the contact of the upper frame 50 with the upper frame rail Ru. The upper end 2X protrudes upward from the case 1 through the communication hole 1Z, and a stopper mechanism is substantially provided below the in-case disposed portion 2Y located in the case below the upper end 2X. And a stopper coil spring fitting projection 2b for preventing the stopper coil spring 3 from coming off. The actuating portion 2a is formed in a brim facing the free end side of the elastic locking piece 6, and is pressed against the free end of the elastic locking piece 6 as the stopper 2 descends, thereby forming the elastic locking piece. 6 bends downward.
[0025]
The stopper coil spring 3 (first elastic material) located below the stopper 2 has the stopper coil spring fitting convex portion 2b fitted at the upper end, and the lower end formed at the bottom of the case body 1X. The stopper coil spring receiving groove 1c is fitted into the stopper coil spring receiving groove 1c, and the stopper coil spring fitting projection 2b and the stopper coil spring receiving groove 1c are configured so as not to come off from the stopper 2. The elastic force urges the stopper 2 upward.
[0026]
On the other hand, the operation body 4 is made of resin (or metal) and is located on the elastic locking piece 6 so as to be able to move laterally. An operating body coil spring insertion hole 4a into which the end of the operating body coil spring 5 (second elastic material) is inserted is dug into the rear surface of the operating body 4, and the end of the operating body coil spring 5 is inserted. ing. The other end of the operating body coil spring 5 is fitted into the operating body coil spring receiving groove 1d formed in the case main body so as not to come off from the operating body 4. The operating body 4 is urged toward the free ends of the stopper 2 and the elastic locking piece 6 by the elastic force of the operating body coil spring 5.
[0027]
Further, a locking portion 6a of the elastic locking piece 6 is located in the middle of the moving path of the operating body 4, and the operating body 4 is moved to a predetermined rear position against the operating body coil spring 5. When this is done, it engages with the front surface of a locking receiving portion 4b formed as a protruding portion on the lower surface side of the operating body 4, thereby restricting the movement of the operating body 4 in the direction of the operating portion 2a. When the engagement between the locking receiving portion 4b and the locking portion 6a of the operating body 4 is released, the operating body 4 moves in the direction of the stopper 2 due to the elastic force of the operating body coil spring 5.
[0028]
On the other hand, on the case lid surface 1Y side of the operation body 4, an operation protrusion 4c for performing an operation of moving the operation body 4 against the operation body coil spring 5 is formed. The operation protrusion 4c is exposed to the indoor side outside the case from the horizontally long operation hole 1w formed in the case lid 1Y, and opposes the operation protrusion 4c from the outside of the case to the tension of the operation body coil 5. Can be forcibly moved. Here, it is desirable that the operation convex portion 4c is configured so as not to excessively protrude from the side surface of the case to prevent malfunction.
[0029]
When laying the screen door to which the fixture E of the above structure is attached, the operation body 4 is pressed against the operation body coil spring 5 with the operation projection 4c shown in FIG. The operating body coil spring 5 is pressed and shrunk to keep the operating body 5 locked by the locking portion 6a.
[0030]
In this state, when the operation of erection of the screen door is performed, the bent portion 2x of the upper end 2X of the stopper 2 is brought into contact with the upper frame rail Ru, and further raised upward, as shown in FIG. The upper end 2X of the stopper 2 is pushed by the force, the coil spring 3 for the stopper is pushed and contracted, and the operating part 2a is lowered. At this time, the free end side of the elastic locking piece 6 is pushed downward by the operating portion 2a and is bent, and the lowering of the elastic locking piece 6 due to the bending causes the locking of the operating body 4 by the locking portion 6a. The operating member 4 is released and slid toward the free end side of the elastic locking piece 6 while being guided by the operating member guide wall by the tension of the operating member coil spring 5, and presses against the operating portion 2a.
[0031]
After that, when the mounting of the fittings is completed, the pressing of the upper frame rail Ru against the upper end portion 2X of the stopper is released, and as shown in FIG. 5, the stopper 2 is moved upward by the tension of the coil spring 3 for stopper. And the operating path of the operating section 2a becomes free, and the operating body 4 moves to this operating path. Then, the moving path of the operating portion 2a is closed by the operating body 4, the lowering of the stopper 2 is suppressed, and the detachment preventing function operates.
[0032]
<Second embodiment>
Next, a second embodiment will be described in detail with reference to FIGS. The retaining device according to the second embodiment is attached to a screen door having a take-out structure as shown in FIG. The structure and operation in the case 1 are the same as those in the first embodiment. However, in this embodiment, as shown in FIG. 7, the bent portion 2x at the upper end of the stopper 2 extends in the indoor / outward direction. In the illustrated example, it is extended (toward the room) and projects toward the side of the case 1. And it is further bent upward at the front end of the bent portion 2x. An upper frame rail engagement receiving member 7 that engages with the upper frame rail Ru is attached to the tip 2z. In addition, the overhang length of the bending part 2x and the height of the front-end | tip part 2z change suitably according to the structure of a fitting or the structure of a built-in part.
[0033]
As shown in FIGS. 8 and 9, the upper frame rail engagement receiving portion 7 has a semicircular projecting piece having a semicircular shape projecting upward on the indoor side (or the outdoor side) of the upper frame rail Ru in the built-in state. 7a and an engaging projection 7b protruding upward on the indoor side (or the outdoor side) with the upper frame rail Ru interposed therebetween. Since the upper frame rail Ru is located between the semicircular convex portion 7a and the engaging convex portion 7b, it is possible to prevent the screen door A from falling down inside and outside the room at the time of installation. The upper frame rail engagement receiving member 7 is made of, for example, resin and is slidable with respect to the upper frame rail Ru, so that the mesh door can be opened and closed in the engaged state.
[0034]
On the other hand, in the present embodiment, as shown in FIG. 10, a case cover Cv that covers the case lid 1Y can be attached. Operation hole H ₂ to enable operation of the communication hole H ₁ and the operation protrusion 4c to allow extension of the indoor and outdoor direction of the bent portion 2x is provided in the case cover Cv. The respect to the communication hole H _1, for moving the bent portion 2x also vertically with the vertical movement of the stopper caused by like an anchor, is opened to a predetermined height range in order to enable this, the operation hole H ₂ Is desirably provided to be horizontally long so that the operation protrusion 4c can be moved laterally. Configuration of these communication holes H ₁ and operation hole H ₂ can be appropriately changed.
[0035]
<Others>
Although the device for retaining a fitting according to the above-described embodiment is an example in which the device is attached to an upper frame of a fitting such as a screen door, it can be attached to an upper end of a vertical frame. In addition, the configuration of the screen door is not particularly limited, and can be appropriately designed within the range of known technology. In the above-described embodiment, the coil spring is used as the first elastic member and the second elastic member. However, each elastic member may be a plate spring or a rubber member. Also, there is no need to use the same type of elastic material. In addition, the configuration of the sash frame and the like can be appropriately designed within the range of the related art.
[0036]
【The invention's effect】
As described above, according to the present invention, the device for preventing the fitting from coming off can be reduced in thickness, and a smooth operation is promised.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a screen door provided with a retaining device according to a first embodiment and a built-in portion thereof.
FIG. 2 is an exploded perspective view of the retaining device according to the first embodiment.
FIG. 3 is a front view showing the inside of the stopper device according to the first embodiment;
FIG. 4 is a view for explaining the movement inside the lock device according to the first embodiment;
FIG. 5 is another view for explaining the movement inside the stopper device according to the first embodiment;
FIG. 6 is a vertical vertical sectional view of a screen door having a take-out structure provided with a retaining device according to a second embodiment and a built-in portion thereof.
FIG. 7 is a perspective view for explaining a retaining device according to a second embodiment.
FIG. 8 is a perspective view for explaining an upper frame rail engagement receiving portion.
FIG. 9 is another perspective view for explaining the upper frame rail engagement receiving portion.
FIG. 10 is a perspective view of a mode in which a cover is attached to the stopper device according to the second embodiment.
FIG. 11 is a cross-sectional view for explaining a structure of a conventional fitting stopper device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Case, 1X ... Case main body part, 1Y ... Case lid part, 2 ... Stopper, 2X ... Stopper upper end part, 2Y ... Case internal arrangement part, 2a ... Operating part, 1a ... Stopper coil spring receiving groove, 3 ... Stopper Coil spring (first elastic material), 4 ... operating body, 5 ... operating body coil spring (second elastic material), 6: elastic locking piece, E: detachment prevention device. Cv: Case cover.

Claims

A case attached to the upper frame of the fitting or the upper end of the vertical frame,
An operating portion is provided at a lower portion, and the upper end portion is provided on the case so as to be movable vertically and the upper end protrudes from the upper surface of the case. A stopper pressed down by force,
A first elastic member for urging the stopper upward;
An operating body provided movably in the lateral direction with respect to the operating portion of the stopper with respect to the case;
A second elastic member provided to the case and for urging the operating body toward the operating portion of the stopper;
A stopper provided on the case and facing a moving path of the operating body to lock a front surface of the operating body, wherein the stopper is lowered when the stopper is lowered against the first elastic material; An elastic locking piece that bends downward when the operating portion of the stopper is pressed down and that escapes from the movement path of the operating body;
The stopper is pushed down in a state where the operation body urged by the second elastic material by the second elastic material is stopped from moving forward on the operation unit side, whereby the elastic locking piece is moved. The operating body is disengaged from the locking portion of the operating body, and the operating body is laterally moved by the urging force of the second elastic member,
When the pressing down of the stopper accompanying the completion of the installation of the fitting is released, the stopper moves upward by the urging force of the first elastic member, and the operating portion escapes from the moving path due to the movement. Along with this, the operating body is advanced below the operating portion of the stopper by the urging force of the second elastic material, and the lowering of the stopper is restricted, so that the fitting is prevented from coming off. apparatus.

An operation protrusion is provided on the indoor side surface of the operating body, a horizontally long communication hole is provided on the indoor side surface of the case, and the operation protrusion is exposed outside the case through the communication hole. The device for preventing a fitting from coming off according to claim 1, wherein an operation of laterally moving the operation body from outside the case is possible via the case.

The upper end of the stopper is offset in the indoor side direction with respect to the operating portion, and the upper frame rail engaging portion engaging with the upper frame rail at the upper end thereof is slidable with respect to the upper frame rail. The device for preventing a fitting from coming off according to claim 1 or 2, which is provided.

An elastic locking piece is formed at the bottom of the case, and a leg projection is formed at a position on the bottom of the case that is separated from the elastic locking piece. The fixture according to any one of claims 1 to 3, wherein a space that allows bending is provided.

A screen door, wherein the device for retaining a fitting according to any one of claims 1 to 4 is attached to an upper end of an upper frame or a vertical frame.