JP4003987B2

JP4003987B2 - Guard arm device for windows

Info

Publication number: JP4003987B2
Application number: JP02914298A
Authority: JP
Inventors: 勝則中村
Original assignee: 美和ロック株式会社
Priority date: 1998-01-26
Filing date: 1998-01-26
Publication date: 2007-11-07
Anticipated expiration: 2018-01-26
Also published as: JPH11210302A

Description

【０００１】
【発明の属する技術分野】
この発明は、窓の障子を通気のために半開きとする目的で用いられる窓用ガードアーム装置に関する。この発明が適用される窓としては、その障子が蝶番や枢軸を備えた回転型のもの、すなわち、片開き窓、両開き窓、縦滑り出し窓、横滑り出し窓又はドレイキップ窓等を挙げることができる。
【０００２】
【従来の技術】
ガードアーム装置は、従来は来訪者の確認や郵便物の受渡し等のために出入口の扉用として用いるのが極く一般的で、回転型の窓に対し通気を目的として装着される窓用のガードアーム装置としては適切なものがなく、ほとんど使用されていないのが実情である。
【０００３】
【発明が解決しようとする課題】
この発明の窓用ガードアーム装置は、装置の本体側を全体として扁平に形成し障子又は障子枠の比較的細い框に対しても装着出来るようにすること、並びに、ガードアーム作動時に開放状態にある障子のわずかな間隙から手を差し込み、室内側の操作手段のつまみ等を操作することをもって行われるガードアーム装置の不正な解除、すなわちガードアームとストライクとの係合状態の不正な解除を防止することを目的として提案されたものをである。
【０００４】
【課題を解決するための手段】
上記の目的を達成するため、この発明の窓用ガードアーム装置は、基端に後方に向けた支軸を、先端に前方に向いた係合突部を夫々固設したガードアームを収納し、上記支軸を前後方向に移動可能に案内すると共に、後方に付勢した箱状をなす縦長の中空のフレームと、上記係合突部が係入可能な嵌め孔及びこれに連設された案内長孔からなる係合長孔を開口させた縦長のストライクと、ガードアームの長さ方向における中央部後方に配設され、水平な支軸の回りを回動可能に支承されると共に、前方にガードアームを収納位置から作動位置に向け突出させるための突片を、後方に連係片を夫々形成した作用部材と、上記ガードアームの支軸の後部に設けられ、ガードアーム作動時先端が作用部材方向に向く長径部を形成したカム片と、このカム片と作用部材の間で縦方向に延在し、カム片に向かう方向に付勢されると共に、ガードアーム作動時カム片に駆動されて作用部材の拘束片と係合し、作用部材を係止する係止部材と、上記作用部材の連係片と係合する一対の脚片を有し、上下方向に移動可能に案内された操作手段とを設け、上記フレームを回転型の障子の開放側端面に、ストライクを障子閉鎖時その開放側端面に対向する障子枠に夫々装着すると共に、操作手段を、その一対の脚片で作用部材の連係片を挟む態様で、障子の室内側に配設したことを特徴とする。
【０００５】
【発明の実施の形態】
以下、図面に示す実施例に基いてこの発明について説明する。
図１及び図２において、符号１０は回転型の障子、２０は障子１０の窓ガラス、３０は障子枠、４０は障子枠３０に取り付けられた緩衝材を兼ねるシール材をそれぞれ示している。
【０００６】
回転型の障子１０の開放側端面（開放側框の端面）にフランジ部においてねじ９１等で取り付けられる箱状をなす細長い中空のフレーム１は、フロント板１１に開口１２を有し、ガードアーム装置の非作動時にはその開口１２を通じガードアーム３が収納される。
【０００７】
符号１３はフレーム１内に傾斜させて設けた仕切り板で、前方のガードアーム収納部と後方の空間部とを仕切っている。その仕切り板１３の中央部分には後述の作用部材４を装着する為の逃がし孔１４が設けられている。
【０００８】
ガードアーム３は細長い板状をなし、その先端に前方に向け固設されたフランジ付の結合突部３１を有し、基端には後方に向け固設された支軸３２を有する。そして、該ガードアーム３はフレーム１に対し支軸３２において進退可能かつ回動可能に装着されている。
【０００９】
なお、図１で符号１５はガードアーム３の支軸３２を進退可能かつ回動可能に支持するための支持板で、フレーム１に対して固定してある。
【００１０】
更に、前記のガードアーム３は支軸３２に巻装された圧縮コイルばね等の付勢手段３３により後退する方向に付勢させてあり、図示例の圧縮コイルばね３３はその長さ方向については前記の支持板１５と支軸３２の後部に固設された後に詳述するカム片６との間に挟持弾設させてある。
【００１１】
ガードアーム３の係合突部３１をガードアームの作動時に係合案内させるストライク２は、障子枠３０の所定位置にフランジ部においてねじ９２等で固定されるものである。
【００１２】
図示例の如く例えば浅い箱形に形成されるストライク２の前面部には、図５及び図７に明示するように、ガードアーム３における係合突部３１の先端のフランジ状の膨出部３１ａの径よりも大径の嵌め孔２１ａ及びそれに連続する幅狭の案内長孔２１ｂから成る係合長孔２１を備えている。
【００１３】
符号２２は中空のストライク２内の一端（上端）に設けられた板ばね材製のクリップ手段で、ガードアームの作動時において障子１０がガードアーム３の長さによる制限下で最大角度位置で開放された時、弾性変形してガードアーム３の係合突部３１を自動的に抱持できるようにしてある（図７参照）。
【００１４】
室内外の通気は障子１０がその最大開放角度位置を占める状態において行うのが普通である。
【００１５】
また、図１〜図３に符号４で示す作用部材は、前記のガードアーム３をフレーム１内の収納位置から作動位置まで突出させるためのもので、例えば１枚の板材を水平投影がコ字状をなすように折り曲げて形成してあり、フレーム１に対しその後方の空間部において枢軸４６ｄで回動可能に枢支させてある。
【００１６】
図示例の作用部材４は、図３に示すように、水平投影がコ字状の本体４１、本体４１の前方に突設した突片４２、本体４１の一方の側板に上方に向け突設した拘束片４３及び本体４１の一方の側板に後方に向け突設した連係片４４から成り、更に、本体４１の他方の側板には、後記のクリック手段８の一部をなす一対のＶ字形切欠４５、４５が設けてある。
【００１７】
作用部材４には、それをαの角度範囲（図１参照）で回動させるために、障子１０又は障子枠の室内側に設けた操作手段５が連係させてある。
【００１８】
図示例の操作手段５は、図４に明示するように、障子１０にねじ等で固定される基板５１、基板５１内をつまみ５３によって距離ｌの範囲を上下に摺動できるようにした操作板５２、及び、フレーム１の後部開口１６から突出させた前記作用部材４の連係片４４に可動係合させるために、操作板５２の背面に一体に突設した一対の脚片５４、５４から成る。
【００１９】
前記の操作手段５は操作板５２を直線的に摺動させる形式のものであるが、別の操作手段として、図示はしないが、サムターンのような回動形式のものを用いることもできる。
【００２０】
この場合、サムターンの内端側は作用部材４に連結させ、外端側のつまみ部分は室内側に露出させるものとする。
【００２１】
本発明における上記したガードアーム３の支軸３２の後部には、例えば正面形が長円状をなすカム片６（図３参照）を固設するものとし、そのカム片６と前記の作用部材４との間には、その間を直線的に変位できるようにしかつ圧縮コイルばね等の付勢手段７１でカム片６側に向け付勢させた例えばＬ字状をなす細長の係止部材７が設けてある。
【００２２】
係止部材７についての長さ方向（図１で上下方向）の変位の案内は、フレーム１の内壁並びに後記のクリック手段８における押し部材８１との摺接による案内手段や他の任意の案内手段によって行い得る。
【００２３】
図１及び図３において、符号８は作用部材４に対して必要に応じて設けることができるクリック手段で、先端を尖鋭にし全体をＬ字状とした押し部片８１、その押し部片８１を作用部材４の他方の側板に向け付勢する圧縮コイルばね７１（但し、この圧縮コイルばね７１は係止部材７の付勢手段を兼ねている）及び前記の押し部片８１の尖鋭端が選択的に嵌め込まれる作用部材４の他方の側板上の一対のＶ字形切欠４５、４５から構成されている。
【００２４】
図示例においては、共に側面形がＬ字状をなす係止部材７及び押し部片８１を相互に逆向きに付勢させている共通の付勢手段７１としての圧縮コイルばねは、係止部材７の頂片７ａと押し部片８１の頂片８１ａとの間に挟持されるようにして装着されている。
【００２５】
クリック手段８において、一方のＶ字形切欠４５は作用部材４におけるガードアームの非作動位置（常態位置）に対応して設けられ、他方のＶ字形切欠４５は作用部材４におけるガードアームの作動位置に対応して設けられている。
【００２６】
押し部片８１における長さ方向（図１で上下方向）の変位の案内は、長孔とピンの組で成る案内手段８２、フレーム１の内壁との摺接による案内手段その他任意の案内手段によって行い得る。
【００２７】
上述した係止部材７について、更に詳しく説明すれば、ガードアーム作動時（図６及び図７参照）、ガードアーム３の揺動に伴って支軸３２と共に回動する長円状のカム片６が、その長径部６１で係止部材７の頂片７ａを付勢手段７１に抗して押し込むことになるので、係止部材７は作用部材４に向け押動される。そして、その先端（図６で下端）が作用部材４の拘束片４３に係合する。
【００２８】
この状態では、障子１０は開放状態にあるが、作用部材４は係止部材７との係合により回動が阻止されているので、室外側の人が障子１０と障子枠３０との間の間隙から手を差し込み、操作手段５により作用部材４をガードアーム非作動位置に向け不正に作動させようとしても、その操作は不能である。
【００２９】
次に、図示例の窓用ガードアーム装置の全体としての作用について説明する。
【００３０】
図１及び図２は本装置の常態であるガードアームの非作動状態を示しており、ガードアーム３はフレーム１内の収納位置に納められている。
【００３１】
ここで、室内側の操作手段５のつまみ５３を下方へ変位させると、脚片５４、５４において連係された作用部材４が図１で右回りに回動するので、作用部材４の突片４２は前方に向け突出し、ガードアーム３を付勢手段３３に抗して作動位置に向け進出させる。
【００３２】
このガードアーム３の作動状態では、その係合突部３１がストライク２の嵌め孔２１ａ内に嵌まり込み、そこで、障子１０が開放されると、図７に鎖線で示すように、ガードアーム３はその係合突部３１がストライク２の案内長孔２１ｂに案内されることにより支軸３２をい中心として回動する一方で、ガードアーム３の長さに応じて障子１０の開放角度を制限する。このような障子１０の半開状態において室内外の通気がなされる。
【００３３】
一方、支軸３２の回動によってその後部のカム片６も共に回動し、図６に示すように、カム片６の長径部６１が付勢手段７１に抗して係止部材７を作用部材４に向け押動させ、係止部材７の先端を作用部材４の拘束片４３に係合させる。
【００３４】
そのため、この係合状態では、作用部材４を常態位置に戻す回動（図６で左回りの回動）が不能となる。つまり、操作手段５による操作、すなわちつまみ５３を上方位置に戻す操作が不能となるので、障子１０と障子枠３０との間の間隙を通じてつまみ５３を常態位置に戻すという不正な操作ができないことになる。
【００３５】
従って、室外側の人が作動状態にあるガードアーム３とストライク２との係合を不正に解除（解放）させようとしても、その解除作動は確実に防止され、通気中における賊の窓からの侵入が阻止されることになる。
【００３６】
なお、室内側の居住者がガードアーム３を作動状態から非作動状態に戻すには、障子１０を閉鎖させた後、操作手段５のつまみ５３を常態の位置に戻してやればよい。
【００３７】
障子１０を閉鎖させた場合は、支軸３２上のカム片６も原位置に戻るので、長径部６１による押圧が解かれる係止部材７は付勢手段で上位位置に復帰し、作用部材４との係合が解除される。
【００３８】
この状態では、つまみ５３による操作手段５の操作は自由となり、つまみ５３を元の上位位置（ガードアーム３の非作動の対応位置）に戻してやれば、作用部材４は図６で左回りに回動しその突片４２は後方位置に退く。
【００３９】
ここに、突片４２で後方から押されていたガードアーム３は、その付勢手段３３の付勢力によって後方に退き、フレーム１の収納位置に戻ることになる（図１及び図２参照）。
【００４０】
【発明の効果】
以上に説明したこの発明の窓用ガードアーム装置によれば、装置の本体側を構成する中空のフレームを全体として扁平に形成することができるので、障子又は障子枠の框が比較的細いものであってもその框内に装着することができるという効果を奏する。
【００４１】
また、ガードアーム作動時障子を通気のため半開状態とした際、ガードアームを作動位置に突出させている作用部材の回動を、ガードアームの支軸と共に回動するカム片及びそのカム片により作動される係止部材で自動的かつ選択的に阻止できるようにしたので、室外側の人が障子を扉枠又は他の障子との間のわずかな間隙から手を差し込み、室内側の操作手段を操作してガードアームとストライクとの係合状態を不正に解除しようとしても、そのような操作・作動は行うことができず、防犯上極めて優れているなど種々の効果を奏する。
【図面の簡単な説明】
【図１】この発明の窓用ガードアーム装置の実施例を常態（ガードアームの非作動状態）で示す部分縦断側面図。
【図２】その平面図。
【図３】図１の実施例における要部の分解斜視図。
【図４】図１の実施例から取り外した操作手段を示す図で、（Ａ）は正面図、（Ｂ）は側面図である。
【図５】図１の実施例から取り外したストライクを示す図で、（Ａ）は正面図、（Ｂ）は側面図である。
【図６】図１の実施例をガードアームの作動状態で示す縦断部分側面図。
【図７】そのガードアーム作動状態におけるガードアームとストライクとの係合態様を障子を開放させて示す説明図で、フレーム及びガードアームは正面から見て表わしてあり、ストライクは背面から見て表わしてある。
【符号の説明】
１０障子
３０障子枠
１フレーム
２ストライク
２１係合長孔
２１ａ嵌め孔
２１ｂ案内長孔
３ガードアーム
３１係合突部
３２支軸
４作用部材
４２突片
４３拘束片
４４連係片
５操作手段
５４脚片
６カム片
６１長径部
７係止部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guard arm device for a window that is used for the purpose of partially opening the shoji of the window for ventilation. Examples of the window to which the present invention is applied include a rotary type whose shoji has a hinge and a pivot, that is, a single-open window, a double-open window, a vertical sliding window, a side sliding window, and a drake window.
[0002]
[Prior art]
The guard arm device is generally used as a door for an entrance / exit for confirmation of a visitor or delivery of a postal item, and is used for a window to be attached to a rotary window for ventilation. There is no suitable guard arm device, and the fact is that it is rarely used.
[0003]
[Problems to be solved by the invention]
The guard arm device for a window of the present invention is formed so that the main body side of the device is flat as a whole so that it can be attached to a shoji or a relatively thin fold of the shoji frame, and is opened when the guard arm is activated. Prevents unauthorized release of the guard arm device, that is, unauthorized release of the engagement state between the guard arm and the strike, by inserting a hand through a small gap of a shoji and operating a knob on the indoor operating means. It is what was proposed for the purpose of doing.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the guard arm device for a window according to the present invention accommodates a guard arm in which a support shaft directed rearward is provided at the base end, and an engagement protrusion directed forward is provided at the front end, respectively. The support shaft is guided so as to be movable in the front-rear direction, and a vertically long hollow frame having a box shape urged rearward, a fitting hole into which the engagement protrusion can be engaged, and a guide provided continuously therewith. A vertically long strike with an elongated engagement hole, and a guard arm that is disposed behind the center in the longitudinal direction and is supported so that it can rotate about a horizontal support shaft. A projecting piece for projecting the guard arm from the storage position toward the operating position, an action member formed with a linkage piece on the rear side, and a rear part of the support shaft of the guard arm, and the tip when the guard arm is actuated A cam piece having a long diameter portion directed in the direction, and this Between the arm piece and the action member, and is urged in the direction toward the cam piece, and is driven by the cam piece when the guard arm is operated to engage with the restraining piece of the action member. An engaging member for engaging and an operating means having a pair of leg pieces engaged with the connecting piece of the action member and guided so as to be movable in the vertical direction are provided, and the frame is opened by a rotary type shoji. Strikes are attached to the side edges of the shoji frame facing the open end face when the shoji is closed, and the operating means is arranged on the indoor side of the shoji with the pair of leg pieces sandwiching the connecting piece of the action member. It was set up.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
1 and 2, reference numeral 10 denotes a rotary type shoji, 20 denotes a window glass of the shoji 10, 30 denotes a shoji frame, and 40 denotes a sealing material that also serves as a cushioning material attached to the shoji frame 30.
[0006]
A box-shaped elongated hollow frame 1 attached to the open side end face (end face of the open side collar ) of the rotary type shoji 10 with a screw 91 or the like at the flange portion has an opening 12 in the front plate 11, and a guard arm device. When not operating, the guard arm 3 is accommodated through the opening 12.
[0007]
Reference numeral 13 denotes a partition plate provided in the frame 1 so as to partition the front guard arm storage portion and the rear space portion. An escape hole 14 for mounting a later-described action member 4 is provided in the central portion of the partition plate 13.
[0008]
The guard arm 3 has a long and narrow plate shape, and has a flanged coupling protrusion 31 fixed forward at the tip, and a support shaft 32 fixed backward at the base end. The guard arm 3 is attached to the frame 1 so as to be able to advance and retreat on the support shaft 32 and to be rotatable.
[0009]
In FIG. 1, reference numeral 15 denotes a support plate for supporting the support shaft 32 of the guard arm 3 so as to be able to advance and retreat and to be rotatable, and is fixed to the frame 1.
[0010]
Further, the guard arm 3 is biased in a retreating direction by a biasing means 33 such as a compression coil spring wound around the support shaft 32, and the compression coil spring 33 in the illustrated example has a length direction. The support plate 15 and the cam piece 6 which will be described in detail after being fixed to the rear portion of the support shaft 32 are provided with a bullet.
[0011]
Strike 2 to the engaging projection 31 of the guard arm 3 is engaged guided during the operation of the guard arm is intended to be fixed by screws 92 or the like at the flange portion at a predetermined position location shoji frame 30.
[0012]
As shown in FIG. 5 and FIG. 7, the front surface of the strike 2 formed in, for example, a shallow box shape as shown in FIG. 5 and FIG. 7 has a flange-like bulged portion 31 a at the tip of the engagement protrusion 31. The engagement long hole 21 includes a fitting hole 21a having a diameter larger than the diameter of the guide hole and a narrow guide long hole 21b continuous thereto.
[0013]
Reference numeral 22 denotes a clip means made of leaf spring material provided at one end (upper end) in the hollow strike 2, and the shoji 10 is opened at the maximum angular position under the restriction of the length of the guard arm 3 when the guard arm is operated. When this is done, it is elastically deformed so that the engagement protrusion 31 of the guard arm 3 can be automatically held (see FIG. 7).
[0014]
The indoor / outdoor ventilation is usually performed in a state where the shoji 10 occupies its maximum opening angle position.
[0015]
1 to 3 is a member for projecting the guard arm 3 from the storage position in the frame 1 to the operating position. For example, a horizontal projection of one plate material is a U-shape. The frame 1 is bent so as to form a shape, and is pivotally supported by a pivot 46d in the space portion behind the frame 1.
[0016]
As shown in FIG. 3, the action member 4 in the illustrated example is a U-shaped main body 41, a projecting piece 42 projecting in front of the main body 41, and projecting upward on one side plate of the main body 41. The constraining piece 43 and a linkage piece 44 projecting rearward from one side plate of the main body 41 are formed. Further, the other side plate of the main body 41 has a pair of V-shaped notches 45 forming a part of the click means 8 described later. 45 are provided.
[0017]
In order to rotate the action member 4 within an angle range of α (see FIG. 1), operating means 5 provided on the indoor side of the shoji 10 or the shoji frame is linked.
[0018]
As shown in FIG. 4, the operation means 5 in the illustrated example includes a substrate 51 that is fixed to the shoji 10 with a screw or the like, and an operation plate that can slide up and down within a distance l by a knob 53 within the substrate 51. 52 and a pair of leg pieces 54, 54 protruding integrally on the back surface of the operation plate 52 so as to be movably engaged with the linkage piece 44 of the action member 4 protruding from the rear opening 16 of the frame 1. .
[0019]
Although the operation means 5 is of a type that slides the operation plate 52 linearly, as another operation means, a rotation type such as a thumb turn can be used, although not shown.
[0020]
In this case, the inner end side of the thumb turn is connected to the action member 4, and the knob portion on the outer end side is exposed to the indoor side.
[0021]
For example, a cam piece 6 (see FIG. 3) having an oblong front shape is fixed to the rear portion of the support shaft 32 of the guard arm 3 in the present invention. 4, an elongate locking member 7 having, for example, an L shape, which can be displaced linearly therebetween and urged toward the cam piece 6 by an urging means 71 such as a compression coil spring. It is provided.
[0022]
The guide of displacement in the length direction (vertical direction in FIG. 1) of the locking member 7 is guided by sliding contact with the inner wall of the frame 1 and the pressing member 81 in the click means 8 described later, or any other guide means. Can be done.
[0023]
In FIG. 1 and FIG. 3, reference numeral 8 is a click means that can be provided on the action member 4 as necessary. The pressing portion 81 having a sharp tip and an L-shape as a whole, A compression coil spring 71 that urges toward the other side plate of the action member 4 (however, this compression coil spring 71 also serves as a biasing means of the locking member 7) and a sharp end of the pressing piece 81 are selected. It consists of a pair of V-shaped notches 45, 45 on the other side plate of the working member 4 to be fitted.
[0024]
In the illustrated example, the compression coil spring as the common urging means 71 that urges the locking member 7 and the pressing piece 81 whose side shapes are both L-shaped in opposite directions is a locking member. 7 and the top piece 81a of the pressing piece 81 are mounted so as to be sandwiched between them.
[0025]
In the click means 8, one V-shaped notch 45 is provided corresponding to the non-operating position (normal position) of the guard arm in the action member 4, and the other V-shaped notch 45 is located in the operating position of the guard arm in the action member 4. Correspondingly provided.
[0026]
The displacement in the length direction (vertical direction in FIG. 1) of the push piece 81 is guided by guide means 82 composed of a pair of elongated holes and pins, guide means by sliding contact with the inner wall of the frame 1, or any other guide means. Can be done.
[0027]
The locking member 7 described above will be described in more detail. When the guard arm is operated (see FIGS. 6 and 7), the oval cam piece 6 that rotates with the support shaft 32 as the guard arm 3 swings. However, since the top piece 7 a of the locking member 7 is pushed against the urging means 71 by the long diameter portion 61, the locking member 7 is pushed toward the action member 4. And the front-end | tip (lower end in FIG. 6) engages with the restraint piece 43 of the action member 4. FIG.
[0028]
In this state, the shoji 10 is in an open state, but the action member 4 is prevented from rotating by the engagement with the locking member 7, so that the person outside the door can place the shoji 10 between the shoji 10 and the shoji frame 30. Even if a hand is inserted through the gap and the operating member 5 tries to operate the action member 4 to the guard arm non-operating position illegally, the operation cannot be performed.
[0029]
Next, the operation of the window guard arm device of the illustrated example as a whole will be described.
[0030]
1 and 2 show a non-operating state of the guard arm, which is a normal state of the apparatus, and the guard arm 3 is stored in a storage position in the frame 1.
[0031]
Here, when the knob 53 of the operation means 5 on the indoor side is displaced downward, the action member 4 linked with the leg pieces 54 and 54 rotates clockwise in FIG. Projects forward and advances the guard arm 3 toward the operating position against the biasing means 33.
[0032]
In the operating state of the guard arm 3, the engaging projection 31 is fitted into the fitting hole 21a of the strike 2, and when the shoji 10 is opened, as shown by a chain line in FIG. The engaging projection 31 is rotated about the support shaft 32 by being guided by the guide elongated hole 21b of the strike 2, while the opening angle of the shoji 10 is limited according to the length of the guard arm 3. To do. In such a half-open state of the shoji 10, indoor and outdoor ventilation is performed.
[0033]
On the other hand, the rear cam piece 6 is also rotated together with the rotation of the support shaft 32, and the long diameter portion 61 of the cam piece 6 acts against the biasing means 71 to act on the locking member 7, as shown in FIG. Pushing toward the member 4, the tip of the locking member 7 is engaged with the restraining piece 43 of the action member 4.
[0034]
For this reason, in this engaged state, rotation (returning counterclockwise in FIG. 6) to return the action member 4 to the normal position is impossible. That is, since the operation by the operating means 5, that is, the operation of returning the knob 53 to the upper position is impossible, the illegal operation of returning the knob 53 to the normal position through the gap between the shoji 10 and the shoji frame 30 cannot be performed. Become.
[0035]
Therefore, even if the person outside the door attempts to release (release) the engagement between the guard arm 3 and the strike 2 which are in an operating state illegally, the releasing operation is surely prevented, and from the window of the bandit during ventilation. Intrusion will be blocked.
[0036]
In order to return the guard arm 3 from the operating state to the non-operating state, the indoor occupant may close the shoji 10 and then return the knob 53 of the operating means 5 to the normal position.
[0037]
When the shoji 10 is closed, the cam piece 6 on the support shaft 32 also returns to the original position, so that the locking member 7 that is released from the pressing by the long diameter portion 61 is returned to the upper position by the urging means, and the action member 4 Is disengaged.
[0038]
In this state, the operation means 5 can be freely operated by the knob 53, and if the knob 53 is returned to the original upper position (corresponding position where the guard arm 3 is not operated), the action member 4 rotates counterclockwise in FIG. The protruding piece 42 moves and retracts to the rear position.
[0039]
Here, the guard arm 3 pushed from behind by the projecting piece 42 is retracted backward by the urging force of the urging means 33 and returned to the storage position of the frame 1 (see FIGS. 1 and 2).
[0040]
【The invention's effect】
According to the above-described guard arm device for a window of the present invention, since the hollow frame constituting the main body side of the device can be formed flat as a whole, the shoji or shoji frame has a relatively thin fold. Even if it exists, there exists an effect that it can be mounted in the bag.
[0041]
In addition, when the guard arm is in the half-open state for ventilation when the guard arm is activated, the action member that projects the guard arm to the operating position is rotated by the cam piece that rotates with the support shaft of the guard arm and the cam piece. Because the locking member that is actuated can be automatically and selectively blocked, the person outside the room inserts the hand through the slight gap between the door frame or other shoji, and the indoor operation means Even if the engagement state between the guard arm and the strike is illegally released by operating, such operation / operation cannot be performed, and various effects such as excellent crime prevention are obtained.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal side view showing an embodiment of a guard arm device for a window according to the present invention in a normal state (a non-operating state of a guard arm).
FIG. 2 is a plan view thereof.
3 is an exploded perspective view of a main part in the embodiment of FIG.
4A and 4B are diagrams showing the operating means removed from the embodiment of FIG. 1, wherein FIG. 4A is a front view, and FIG. 4B is a side view.
5A and 5B are diagrams showing a strike removed from the embodiment of FIG. 1, wherein FIG. 5A is a front view, and FIG. 5B is a side view.
6 is a vertical partial side view showing the embodiment of FIG. 1 in an operating state of a guard arm. FIG.
FIG. 7 is an explanatory view showing the engagement state of the guard arm and the strike when the guard arm is in an operation state with the shoji open. The frame and the guard arm are seen from the front, and the strike is seen from the back. It is.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Shoji 30 Shoji frame 1 Frame 2 Strike 21 Engagement long hole 21a Fitting hole 21b Guide long hole 3 Guard arm 31 Engagement protrusion 32 Support shaft 4 Action member 42 Projection piece
43 Restraint pieces
44 Linking piece 5 Operating means
54 Leg piece 6 Cam piece
61 Long diameter portion 7 Locking member

Claims

A rearward support shaft at the base end and a guard arm with a front-facing engagement protrusion fixed at the front end are housed to guide the support shaft so that it can move in the front-rear direction. A vertically long hollow frame in the shape of a box, a vertically long strike having an engagement long hole formed by a fitting hole into which the engagement protrusion can be engaged, and a guide long hole continuously provided therewith, and a guard A projecting piece disposed behind the central part in the length direction of the arm and supported so as to be rotatable around a horizontal support shaft, and for projecting the guard arm forward from the storage position toward the operating position , Action members each having a connecting piece formed at the rear, a cam piece provided at the rear part of the support shaft of the guard arm and having a long diameter portion whose tip is directed toward the action member when the guard arm is operated, and the cam piece and the action member It extends in the vertical direction between and is attached in the direction toward the cam piece. In addition, when the guard arm is actuated, the cam piece is engaged with the restraining piece of the action member to engage with the restraining piece of the action member, and a pair of leg pieces to be engaged with the linkage piece of the action member. And operating means guided so as to be movable in the vertical direction, and the frame is mounted on the open side end surface of the rotary type shoji, and the strike is mounted on the shoji frame facing the open side end surface when the shoji is closed, respectively. A window guard arm device characterized in that the operating means is disposed on the indoor side of the shoji in such a manner that the connecting piece of the action member is sandwiched between the pair of leg pieces .