JP4101928B2

JP4101928B2 - Strike of guard arm device

Info

Publication number: JP4101928B2
Application number: JP11611798A
Authority: JP
Inventors: 勝則中村
Original assignee: 美和ロック株式会社
Priority date: 1998-04-10
Filing date: 1998-04-10
Publication date: 2008-06-18
Anticipated expiration: 2018-04-10
Also published as: JPH11293990A

Description

【０００１】
【発明の属する技術分野】
この発明は、窓の障子や扉を通気や郵便物の受け渡しの為に半開きとするガードアーム装置に係り、特に、扉や障子を閉鎖するとき、ガードアームを収納ケースに確実に復帰させることができるガードアーム装置に関する。
【０００２】
【従来の技術】
ガードアーム装置は従来種々のものが提案されまた実用されているが、図１乃至図４に示すものはガードアーム装置の非作動時ガードアームが自動的に収納ケース内に復帰するので使い勝手がよい。
【０００３】
図示の実施例におけるガードアーム装置は回転窓に適用されたもので、先ずその構造を簡単に説明する。
【０００４】
このガードアーム装置は、図１及び図２に示すように、窓ガラス１を有する回転窓の障子２の自由側端縁部と障子枠３との間に装着され、障子２側に設けられた収納ケース４と、障子枠３側に設けられたストライク５とを有している。
【０００５】
回転型の障子２の自由側端縁又は障子枠にフランジ部においてねじ６等で取り付けられる箱状をなす細長い中空の収納ケース４は、フロント板７に開口８を有し、ガードアーム装置の非作動時にはその開口８を通じガードアーム９が収納される。
【０００６】
符号１１は収納ケース４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１１の中央部分には後述の作用部材１２を装着する為の逃がし孔１３が設けられている。
【０００７】
ガードアーム９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係合突部１４を有し、基端には後方に向け固設された支軸１５を有する。そして、該ガードアーム９は収納ケース４に対し支軸１５において進退及び傾動可能かつ回動可能に装着されている。
【０００８】
なお、図１で符号１６はガードアーム９の支軸１５を進退及び傾動可能かつ回動可能に支持するための支持板で、収納ケース４に対して固定してある。
【０００９】
更に、前記のガードアーム９は支軸１５に巻装された圧縮コイルばね等の付勢手段１７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１７は、その長さ方向については、前記の支持板１６と、支軸１５の後部に固設され、この発明に関係が無いのでその機能の説明を省略するカム片１８との間に挟持弾設させてある。
【００１０】
ガードアーム９の係合突部１４をガードアームの作動時に係合案内させるストライク５は、図２及び図３に示すように箱状の部材であって、障子枠３の所定位置にフランジ部においてねじ６等で固定されるものである。
【００１１】
図示例の如く例えば浅い箱形に形成されるストライク５の前面部には、図３及び図５に明示するように、ガードアーム９における係合突部１４の先端のフランジ状の膨出部１４ａの径よりも大径の嵌め孔１９及びそれに連続する幅狭の案内長孔２１から成る係合長孔２２を備えている。
【００１２】
上記のように構成されたガードアーム装置は、室内側の操作摘み２３を手指で下降させると、図４に示すように、その内端の脚片２４、２４に挟持された前記作用部材の連係片２５が下降し、突片２６がガードアーム９の先端部を付勢手段１７に抗して収納ケース４外に突出させる。
【００１３】
すると、図１に示すように、係合突部１４がストライクの嵌め孔１９内に嵌まり込み、そこで障子２が開放されると、図５に鎖線で示すように、ガードアーム９はその係合突部１４がストライク５の案内長孔２１に案内されることにより支軸１５を中心として回動する一方で、ガードアーム９の長さに応じて障子２の開放角度を制限する。
【００１４】
一方、障子を閉め、ガードアーム９とストライク５とを障子の見込み方向において整合させてから操作摘み２３（図２参照）を押上げると、ガードアーム９は付勢手段１７の弾力により自動的に収納ケース４内に引込む。
【００１５】
【発明が解決しようとする課題】
上記のように構成されたガードアーム装置は、勿論所期の機能を発揮して実用されているが、障子や扉の閉鎖時、ガードアームの支軸部の摩擦の為、ガードアームがストライクに対し元の角度位置に戻らない場合が考えられる。
【００１６】
すなわち、図５に示す開放時から障子を閉鎖するとき、固定のストライク５に対し収納ケース４が左方に移動する。
【００１７】
この場合、係合突部が案内長孔２１内にあるときには係合突部１４が案内長孔２１の開口端縁と摺接するが、係合突部１４が嵌め孔１９内に進入すると、ガードアームの支軸１５における摩擦の為、ガードアーム９が反時計方向に振れ残り、膨出部１４ａの外周縁がストライク５の側板内面に摺接しつつ下降する。
【００１８】
その結果、収納ケース４とストライク５とが幅方向において整合しても、係合突部の膨出部１４ａが嵌め孔１９の開口端縁に裏側から係合して引っ掛かり、ガードアーム９が収納ケース４内に戻らない場合も考えられる。
【００１９】
この発明は上記した不都合を解消し、障子や扉の閉鎖時、ガードアームの先端の係合突部１４がストライク５に引っ掛からず、ガードアーム９が確実に収納ケース４内に戻るガードアーム装置のストライクを提供することを目的としている。
【００２０】
【課題を解決するための手段】
上記の目的を達成するため、この発明は、ストライクの内側に、嵌め孔及び嵌め孔と案内長孔との接続部に掛けて、ガードアームから見て断面台形に折曲された制御板を設け、その台形の底辺の長さを嵌め孔の幅程度に、頂辺の長さをガードアームの係合突部の膨出部の径程度に設定し、以て、ガードアームの支軸部の摩擦のため上記膨出部の中心軸が嵌め孔の中心とずれた場合でも、制御板の斜面と膨出部の外周縁との摺接により上記ずれを修正するようにしたことを特徴とする。
【００２１】
【発明の実施の形態】
以下図６及び図７を参照してこの発明について説明する。
これらの図において符号２７は制御板を示し、この制御板３は、薄い板材をガードアーム９側から見て断面台形に折曲した部材で、嵌め孔１９及び嵌め孔１９と案内長孔の接続部に掛けて設けられている。
【００２２】
制御板３をストライク５に結合するには、例えばストライクの係合長孔を開口させた全面板裏面にスポット溶接或いは接着剤によりこれらを一体に結合する。
【００２３】
或いは、図５に示すように案内長孔２１に関し嵌め孔１９が下方になるようにストライク５を取付ける場合には、ストライク５をねじ止めする前に制御板２７を単にストライク５内に落とし込むだけでよい。
【００２４】
上記制御板２７の断面台形の底辺、すなわち、ガードアーム９側から見て樋状に形成された制御板の開口端縁の幅は、図７に示すように、嵌め孔１９の幅程度に設定されている。
【００２５】
また、制御板２７の断面台形の頂辺、すなわち、ガードアーム９側から見て樋状に形成された制御板２７の底板の幅は、ガードアーム先端の係合突部の膨出部１４ａの径よりやや大きく設定されている。
【００２６】
上記のように構成されたこの発明によるガードアーム装置のストライクは、係合突部１４が案内長孔２１内にあるときには、その膨出部１４ａが図７のＡ部に入りこむので、制御板２７と係合突部１４とは相互に干渉しない。
【００２７】
また、図７に示すように、嵌め孔１９の開口端縁に制御板２７の斜面が連接しているので、係合突部１４が案内長孔２１と嵌め孔１９との接続部を経て嵌め孔１９内に進入した後は、先ず膨出部１４ａ（図１参照）の外周縁が制御板２７の斜面に摺接し、以降この斜面に阻まれて従来のストライク（図５参照）のように膨出部１４ａが嵌め孔１９の開口端縁の裏側に潜り込まない。
【００２８】
更にまた、障子や扉が完全に閉鎖されると、それまで制御板２７の底板から浮き上がっていた係合突部１４が底板方向に押込まれるので（図１参照）、この押込まれる過程において膨出部１４ａの外周縁と制御板２７の斜面との間に生じる楔作用により、係合突部１４はストライクの幅方向の中心に整合する。
【００２９】
【発明の効果】
以上の説明から明らかなように、この発明は、ストライクの内側に、嵌め孔及び嵌め孔と案内長孔との接続部に掛けて、ガードアームから見て断面台形に折曲された制御板を設け、その台形の底辺の長さを嵌め孔の幅程度に、頂辺の長さをガードアームの係合突部の膨出部の径程度に設定したので、扉や障子を閉鎖するとき係合突部の膨出部が嵌め孔の開口端縁の裏側に入りこまない。
【００３０】
また、制御板の斜面と膨出部の外周縁との間に生じる楔作用により、係合突部が自動的にストライクの幅方向の中心に整合し、所謂自動調芯が行われる、等種々の効果を奏する。
【図面の簡単な説明】
【図１】窓用の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４】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５】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。
【図６】この発明の一実施例によるガードアーム装置のストライクの正面図。
【図７】図６のＶＩＩ−ＶＩＩ線による横断面図。
【符号の説明】
２障子
３障子枠
４収納ケース
５ストライク
１９嵌め孔
２１案内長孔
２２係合長孔
２７制御板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guard arm device in which a window shoji or door is half-opened for ventilation or delivery of mail, and particularly when the door or shoji is closed, the guard arm can be reliably returned to the storage case. The present invention relates to a guard arm device that can be used.
[0002]
[Prior art]
Various types of guard arm devices have been proposed and put to practical use, but those shown in FIGS. 1 to 4 are easy to use because the guard arm automatically returns to the storage case when the guard arm device is not in operation. .
[0003]
The guard arm device in the illustrated embodiment is applied to a rotating window. First, the structure will be briefly described.
[0004]
As shown in FIGS. 1 and 2, the guard arm device is mounted between the free edge of the shoji 2 of the rotary window having the window glass 1 and the shoji frame 3 and is provided on the shoji 2 side. It has a storage case 4 and a strike 5 provided on the side of the shoji frame 3.
[0005]
An elongated hollow storage case 4 having a box shape that is attached to the free side edge of the rotary type shoji 2 or the shoji frame with a screw 6 or the like at the flange portion has an opening 8 in the front plate 7, so In operation, the guard arm 9 is accommodated through the opening 8.
[0006]
Reference numeral 11 denotes a partition plate provided to be inclined in the storage case 4 and partitions the front guard arm storage portion and the rear space portion. In the central portion of the partition plate 11, an escape hole 13 for mounting a later-described action member 12 is provided.
[0007]
The guard arm 9 has an elongated plate shape, and has a flanged engaging projection 14 fixed forward at the tip, and a support shaft 15 fixed rearward at the base end. The guard arm 9 is attached to the storage case 4 so as to be able to advance and retreat, tilt and rotate on the support shaft 15.
[0008]
In FIG. 1, reference numeral 16 denotes a support plate for supporting the support shaft 15 of the guard arm 9 so as to be able to advance and retract, tilt and rotate, and is fixed to the storage case 4.
[0009]
Further, the guard arm 9 is urged in a retreating direction by an urging means 17 such as a compression coil spring wound around the support shaft 15, and the compression coil spring 17 in the illustrated example is in the length direction. Is fixedly provided between the support plate 16 and the rear portion of the support shaft 15 and has no relationship with the present invention, so that the description of the function is omitted, and is held and placed between the cam piece 18.
[0010]
The strike 5 for engaging and guiding the engagement protrusion 14 of the guard arm 9 when the guard arm is operated is a box-shaped member as shown in FIGS. 2 and 3, and is provided at a flange portion at a predetermined position of the shoji frame 3. It is fixed with a screw 6 or the like.
[0011]
As shown in FIG. 3 and FIG. 5, the front surface of the strike 5 formed in, for example, a shallow box shape, as shown in the drawing, has a flange-like bulged portion 14 a at the tip of the engaging protrusion 14 in the guard arm 9. There is provided an engagement long hole 22 composed of a fitting hole 19 having a diameter larger than that of the diameter and a guide long hole 21 having a narrow width continuous therewith.
[0012]
In the guard arm device configured as described above, when the operation knob 23 on the indoor side is lowered with fingers, as shown in FIG. 4, the linkage of the action members held between the leg pieces 24 and 24 at the inner ends thereof is performed. The piece 25 is lowered, and the protruding piece 26 projects the tip of the guard arm 9 out of the storage case 4 against the biasing means 17.
[0013]
Then, as shown in FIG. 1, when the engaging protrusion 14 is fitted into the strike fitting hole 19 and the shoji 2 is opened there, the guard arm 9 is engaged as shown in FIG. While the joint protrusion 14 is guided by the guide long hole 21 of the strike 5 and rotates around the support shaft 15, the opening angle of the shoji 2 is limited according to the length of the guard arm 9.
[0014]
On the other hand, when the shoji is closed and the guard arm 9 and the strike 5 are aligned with each other in the expected direction of the shoji and the operation knob 23 (see FIG. 2) is pushed up, the guard arm 9 is automatically moved by the elastic force of the biasing means 17. Pull into the storage case 4.
[0015]
[Problems to be solved by the invention]
Of course, the guard arm device configured as described above has been put to practical use with its intended function, but when the shoji or door is closed, the guard arm strikes due to friction of the guard arm spindle. On the other hand, there may be a case where it does not return to the original angular position.
[0016]
That is, when closing the shoji from the open state shown in FIG. 5, the storage case 4 moves to the left with respect to the fixed strike 5.
[0017]
In this case, when the engaging protrusion is in the guide long hole 21, the engaging protrusion 14 is in sliding contact with the opening edge of the guide long hole 21, but when the engaging protrusion 14 enters the fitting hole 19, the guard Due to the friction on the arm support shaft 15, the guard arm 9 remains unswing counterclockwise, and the outer peripheral edge of the bulging portion 14 a descends while being in sliding contact with the inner surface of the side plate of the strike 5.
[0018]
As a result, even if the storage case 4 and the strike 5 are aligned in the width direction, the bulging portion 14a of the engaging protrusion engages with the opening edge of the fitting hole 19 from the back side, and the guard arm 9 is stored. There may be a case where the case 4 does not return.
[0019]
The present invention eliminates the inconveniences described above, and the guard arm device of the guard arm device in which the engagement projection 14 at the tip of the guard arm is not caught by the strike 5 and the guard arm 9 is surely returned into the storage case 4 when the shoji or door is closed. The purpose is to provide strikes.
[0020]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a control plate bent in a trapezoidal cross section as viewed from the guard arm is provided on the inner side of the strike, hung on the connecting portion between the fitting hole and the fitting long hole and the guide long hole. The length of the base of the trapezoid is set to about the width of the fitting hole, and the length of the top is set to about the diameter of the bulging portion of the engagement projection of the guard arm. Even when the center axis of the bulging portion is displaced from the center of the fitting hole due to friction, the displacement is corrected by sliding contact between the slope of the control plate and the outer peripheral edge of the bulging portion. .
[0021]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to FIGS.
In these drawings, reference numeral 27 denotes a control plate. The control plate 3 is a member obtained by bending a thin plate material into a trapezoidal cross section when viewed from the guard arm 9 side, and the fitting hole 19 and the connection between the fitting hole 19 and the guide elongated hole. It is hung on the part.
[0022]
In order to couple the control plate 3 to the strike 5, for example, they are integrally joined to each other by spot welding or an adhesive on the rear surface of the entire plate where the engagement long holes of the strike are opened.
[0023]
Alternatively, as shown in FIG. 5, when the strike 5 is attached so that the fitting hole 19 is positioned downward with respect to the guide long hole 21, the control plate 27 is simply dropped into the strike 5 before screwing the strike 5. Good.
[0024]
The base of the control plate 27 having a trapezoidal cross section, that is, the width of the opening edge of the control plate formed in a bowl shape when viewed from the guard arm 9 side, is set to about the width of the fitting hole 19 as shown in FIG. Has been.
[0025]
Further, the top of the trapezoidal cross section of the control plate 27, that is, the width of the bottom plate of the control plate 27 formed in a bowl shape when viewed from the guard arm 9 side, is the width of the bulging portion 14a of the engaging projection at the tip of the guard arm. It is set slightly larger than the diameter.
[0026]
In the strike of the guard arm device according to the present invention configured as described above, when the engaging protrusion 14 is in the guide long hole 21, the bulging portion 14a enters the portion A of FIG. And the engaging protrusion 14 do not interfere with each other.
[0027]
Further, as shown in FIG. 7, since the slope of the control plate 27 is connected to the opening edge of the fitting hole 19, the engaging protrusion 14 is fitted through the connecting portion between the guide long hole 21 and the fitting hole 19. After entering the hole 19, first, the outer peripheral edge of the bulging portion 14a (see FIG. 1) is brought into sliding contact with the slope of the control plate 27, and thereafter is blocked by this slope, as in the conventional strike (see FIG. 5). The bulging portion 14 a does not sink into the back side of the opening edge of the fitting hole 19.
[0028]
Furthermore, when the shoji and the door are completely closed, the engaging protrusion 14 that has been lifted from the bottom plate of the control plate 27 is pushed toward the bottom plate (see FIG. 1). Due to the wedge action generated between the outer peripheral edge of the bulging portion 14a and the inclined surface of the control plate 27, the engaging protrusion 14 is aligned with the center of the strike in the width direction.
[0029]
【The invention's effect】
As is apparent from the above description, the present invention provides a control plate bent in a trapezoidal cross section when viewed from the guard arm by hanging on the inside of the strike on the connecting portion between the fitting hole and the fitting hole and the guide long hole. Since the trapezoidal base is set to the length of the fitting hole and the length of the top is set to the diameter of the bulging part of the engagement projection of the guard arm, it is necessary to close the door and shoji. The bulging portion of the mating protrusion does not enter the back side of the opening edge of the fitting hole.
[0030]
Also, the wedge action generated between the slope of the control plate and the outer peripheral edge of the bulging portion automatically aligns the engaging protrusion with the center in the width direction of the strike, so-called automatic alignment is performed, etc. The effect of.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal side view showing an embodiment of a guard arm device for a window in a normal state (a guard arm is inoperative).
FIG. 2 is a plan view thereof.
3A and 3B are views showing a strike removed from the embodiment of FIG. 1, wherein FIG. 3A is a front view, and FIG. 3B is a side view.
FIG. 4 is a vertical partial side view showing the embodiment of FIG. 1 in an operating state of a guard arm.
FIG. 5 is an explanatory view showing the engagement state of the guard arm and the strike when the guard arm is in operation, with the shoji open, and the frame and the guard arm are seen from the front, and the strike is seen from the back. It is.
FIG. 6 is a front view of a strike of a guard arm device according to an embodiment of the present invention.
7 is a cross-sectional view taken along line VII-VII in FIG.
[Explanation of symbols]
2 shoji 3 shoji frame 4 storage case 5 strike 19 fitting hole 21 guide slot 22 engagement slot 27 control plate

Claims

A storage case for a hollow storage case that is an elongated plate-like body with an engaging projection formed at the top at the top and a support shaft at the base and attached to a rotary shoji or door A guard arm device is configured in combination with a guard arm that is mounted so as to be able to advance and retreat and tilt through the opening of the front plate on the front surface of the front plate and to be pivoted and is urged in a backward direction. The inside of the box-shaped body which is attached to the door frame and has an engagement long hole made up of a fitting long hole which is engaged with the engagement protrusion and a guide long hole connected to the engagement protrusion when the guard arm device is operated. In addition, the control hole bent into a trapezoidal cross section when viewed from the guard arm is provided by hooking the fitting hole and the connecting portion between the fitting hole and the guide long hole, and the length of the base of the trapezoid is about the width of the fitting hole. The length of the top side is set to the diameter of the bulging part of the engagement protrusion of the guard arm. , Following Te, even when deviated from the center of the central axis fitted hole of the bulged portion due to friction of the support shaft portion of the guard arm, the displacement by sliding contact with the outer peripheral edge of the slope and a bulging portion of the control plate Strike of a guard arm device characterized by correcting the above .