JP2004250962A - Sash - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sash reducing a gap between openable shojis to the utmost when the slidable Shojis are laterally installed. <P>SOLUTION: The sash comprises mullions 1, a right sliding Shoji 2a located at the right of the mullion and having the left side end indoor side face in contact with the outdoor side face of the mullion, the left sliding Shoji 2b located at the left of the mullion and having the right end indoor side face in contact with the outdoor side face of the mullion, and a connection arm 3 located between the right/left sliding Shojis and openably/closably connecting the the right/left sliding Shojis to the mullion. The connection arm comprises a mullion side arm 4 having one end fixed to the outdoor side face of the mullion and the other end projected from the gap S of the right/left sliding Shojis to the more outdoor side than the right/left sliding Shojis, the right screen side arm 5a having one end part fitted in the left side edge of the right sliding Shoji and the other end projected to the more outdoor side than the right sliding Shoji, the left sliding Shoji side arm 5b having one end fitted in the right side edge of the left sliding Shoji and the other end protruded more than the left sliding Shoji to the outdoor side, and one horizontal shaft 6 rotatably supporting the outdoor side end of the right/left sliding Shoji side arm to the outdoor side end of the right/left sliding Shoji side arms. The right/left sliding Shojis are connected to the mullion freely outwardly collapsibly. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、外倒し式又は突き出し式に開閉する開閉障子を横並びに有するサッシ（カーテンウォールを含む）に関するものである。
【０００２】
【従来の技術】
ビル用のサッシやカーテンウォールは、方立と無目とからなる格子状の骨組にガラス等のパネルを嵌め込んで大部分が嵌め殺し窓状に構成され、一部に火災時の排煙や換気等のために開閉障子が設けられる。一般的に方立は、角筒状の本体部の室外側に断面Ｔ字形のパネル保持部を一体に有する形状となっており、パネル保持部内にパネルの側縁部を呑み込ませ、パネル保持部内の隙間部分に押縁を嵌め込んでパネルを方立に固定している。開閉障子の部分では、方立のパネル保持部内に枠部材を取り付け、枠部材に取り付けたシール材に障子の框を当接させて、水密性と気密性を確保している。
【０００３】
上記の構造であると、開閉障子の縦框が方立からはみ出すことになり、嵌め殺し窓部と開閉障子の部分とでは外から見て窓枠の横幅が異なり、デザインの統一性・直線性が害される。近年では、方立や無目が外部から目立たないデザインを好む傾向が顕著に見られるが、開閉障子を横並びに配置する場合、これまでは開閉障子を保持させるために、常識的に左右の開閉障子同士の間に方立の一部、あるいは枠部材を介在させていることから（例えば、特許文献１参照。）、開閉障子同士の間にはある程度の間隔が開くことになり、開閉障子の部分の窓枠を目立たなくするのが困難であった。
【０００４】
【特許文献１】
特開昭６０−２３８５５１号公報（図３、図９）
【０００５】
【発明が解決しようとする課題】
本発明は以上に述べた実情に鑑みてなされたものであって、開閉障子を横並びに設置する場合に、開閉障子同士の隙間を極力小さくすることのできるサッシの提供を目的とする。
【０００６】
【課題を解決するための手段】
上記の課題を達成するために本発明のサッシは、方立と、方立の右側に位置し左側端部室内側面が方立の室外側面に当接する右の開閉障子と、方立の左側に位置し右側端部室内側面が方立の室外側面に当接する左の開閉障子と、左右の開閉障子の隙間に位置し左右の開閉障子を方立に開閉自在に連結する連結アームとを備え、連結アームは、一端部を方立の室外側面に固定し他端部を左右の開閉障子の隙間から左右の開閉障子よりも室外側に突出した方立側アームと、一端部を右の開閉障子の左側縁部に嵌め込み他端部を右の開閉障子よりも室外側に突出した右開閉障子側アームと、一端部を左の開閉障子の右側縁部に嵌め込み他端部を左の開閉障子よりも室外側に突出した左開閉障子側アームと、左右の開閉障子側アームの室外側端部を方立側アームの室外側端部に対して回動自在に軸着する一本の水平軸とから構成してあり、左右の開閉障子を突き出し自在または外倒し自在に方立に連結していることを特徴とする。
【０００７】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。図１から図７は本発明のサッシの一実施形態を示している。このサッシは、躯体７に固定して複数本の方立１を一定の間隔をおいて鉛直に設け、方立１の上端部に上の無目材８を架設し、方立１の中間部に中間の無目材９を架設し、方立１の下端部に下の無目材１０を架設して骨組を構成し、方立１と上の無目材８と中間の無目材９とで構成される開口部に外倒し式に開閉する開閉障子２ａ，２ｂ，，，を設け、方立１と中間の無目材９と下の無目材１０とで構成される開口部に複層のガラスパネル１１を嵌め殺し状に保持させて固定障子１２を構成してある。開閉障子２ａ，２ｂは、その下端側であって、左右の開閉障子２ａ，２ｂの隙間の位置に設けた連結アーム３により、方立１の室外側に連結してある。
【０００８】
方立１は、角筒状となった方立本体１３と、その室外側の面に取り付けた方立補助材とで構成してある。方立補助材は、その方立が両サイドに位置するものか中間に位置するものか、開閉障子２ａ，２ｂに面した部分か固定障子１２の部分かによって、異なった形状となっている。図３に示すように、開閉障子２ａ，２ｂに面した部分であって、中間に位置する方立１の室外側には、方立１の左右両側に位置する開閉障子２ａ，２ｂの縦框１４ａの室内側面を受ける両側開閉障子用補助材１５が取り付けられ、一方、開閉障子２ａに面した部分であって、両サイドに位置する方立１の室外側には、片側に位置する開閉障子２ａの縦框１４ａの室内側面を受ける片側開閉障子用補助材１６と、開閉障子２ａの側面側をカバーするサイド部用補助材１７が取り付けられている。両側開閉障子用補助材１５と片側開閉障子用補助材１６の室外側面には、障子の縦框１４ａに密着するパッキン材１８を設けてある。また、方立１の固定障子１２の部分には、図７に示すように、ガラスパネル１１の室内側面を保持する固定障子室内側用補助材１９と、ガラスパネル１１の室外側面を保持する固定障子室外側用補助材２０とが取り付けられている。各方立補助材の方立本体１３への取り付けは、互いの相対面に設けた係合部２１を係合し、ビス２２で固定してなされている。
【０００９】
開閉障子２ａ，２ｂは、縦框１４ａと横框１４ｂを方形に枠組し、その内側に複層のガラスパネル２３を保持させて構成してある。また、左右の縦框１４ａと下側の横框１４ｂは、室内側の面と外側面部を構成しガラスパネル２３の室内側面を保持する框本体２４と、室外側の面を構成しガラスパネル２３の室外側面を保持する押縁２５とで構成してある。開閉障子２ａ，２ｂの上側及び左右の外側面にはタイト材２６を備え、雨水の浸入を阻止している。また四周の框１４ａ，１４ｂの室内側面には、パッキン材１８を密着させている。
【００１０】
開閉障子２ａ，２ｂは、１０ミリの隙間Ｓを空けて横並びに配置され、その隙間Ｓを利用して連結アーム３を設置してある。連結アーム３は、方立１に固定される方立側アーム４と、方立１の左右に位置する開閉障子２ａ，２ｂにそれぞれ取り付けられる左右の開閉障子側アーム５ａ，５ｂとからなる。方立側アーム４は、方立１の室外側面にビス２７で固定される取付板２８を備え、取付板２８の室外側に、開閉障子２ａ，２ｂの隙間Ｓから障子の室外側まで突出する支持アーム２９を備え、且つ支持アーム２９の先端部には水平軸６を備える。取付板２８が取り付く部分は、両側開閉障子用補助材１５を切除してある。なお、両サイドの方立１に取り付けられる方立側アーム４は、取付板２８を有しておらず、支持アーム２９の室内側端部を方立のサイド部用補助材１７にビス２７で固定してある。左右の開閉障子側アーム５ａ，５ｂは、障子の縦框１４ａ内に差し込まれ縦框１４ａにビス３０で固定される取付部３１と、障子の室外側に突出して水平軸６に回転自在に係合する軸係合部３２とを備える。開閉障子側アームの取付部３１は、図６に示すように、縦框１４ａ用の押縁２５の下端部を切り欠いて形成した孔３３から框内に差し込まれ、縦框１４ａの外側面部の内面側に当接し、外側からビス３０で固定されている。取付部３１は孔３３と嵌合して強固に固定され、また孔３３は軸係合部３２の室内側面によって塞がれ、框内への雨水の浸入が阻止される。軸係合部３２は、水平軸６を差し込むための切り欠き３４を有し、且つ水平軸６と当る部分が軸押え３５として別体で構成されている。軸押え３５は、止めネジ３６によって軸係合部３２に固定される。開閉障子２ａ，２ｂは、両側の水平軸６，６を支点として回転し、いわゆる外倒し式に開閉自在となる。
【００１１】
開閉障子２ａ，２ｂを方立１に取り付ける際の手順を述べると、まず、方立側アーム４と左右の開閉障子側アーム５ａ，５ｂは、方立１と開閉障子２ａ，２ｂにそれぞれ取り付けておく。この時、軸押え３５は、軸係合部３２から外しておく。次に、開閉障子側アーム５ａ，５ｂの軸係合部３２の切り欠き３４に方立側アーム４の水平軸６を挿入した後、軸押え３５を軸係合部３２に嵌め込んで水平軸６を軸係合部３２に保持させる。次に、軸係合部３２に止めネジ３６を捩じ込み、その先端で軸押え３５を固定する。最後に方立１と開閉障子２ａ，２ｂの間に連結部材３７を取り付ける。連結部材３７は、開閉障子２ａ，２ｂが一定の角度以上開かないようにするためのもので、伸縮するピストン状のものや折れ曲るリンク状のもの、ワイヤ等を使用できる。
【００１２】
隣接する開閉障子の縦框１４ａを合わせた横幅Ａは、その下側に位置する固定障子１２の縦枠の横幅Ａ（固定障子室外側用補助材２０の室外側面の横幅Ａ）と同じにしてあり、開閉障子２ａ，２ｂと固定障子１２の部分とで外観意匠に統一性・直線性を持たせている。
【００１３】
本発明は、以上に述べた実施形態に限定されない。連結アーム３を開閉障子２ａ，２ｂの上側端部に設けた場合には、開閉障子２ａ，２ｂは上側を支点として突き出し式に開閉するものとなる。方立側アーム４の水平軸６は、方立側アーム４に一体に形成したものに限らず、方立側アーム４とは別体とし、左右の開閉障子側アーム５ａ，５ｂと方立側アーム４に後から差し込むものであっても良い。左右の開閉障子側アーム５ａ，５ｂは、その取付部３１が、開閉障子の側面から外側にはみ出さないように、框に嵌め込んで固定してあればよく、例えばアームの取付部３１を、縦框１４ａや横框１４ｂの側面や室外側面に孔や切り欠きを設けて嵌め込み、固定することができる。
【００１４】
【発明の効果】
本発明のサッシは、外倒し又は突き出し式に開閉する開閉障子を横並びに設ける場合に、開閉障子同士の隙間を極力小さくすることができる。このことは、開閉障子の部分のデザイン設計の自由度を向上させ、洗練された外観意匠の実施を容易に可能とする利点がある。また、開閉障子を方立に取り付ける作業性も良好である。
【図面の簡単な説明】
【図１】図２におけるＡ−Ａ断面図である。
【図２】本発明のサッシの一実施形態を示す室外側正面図である。
【図３】図２におけるＢ−Ｂ断面図である。
【図４】図２におけるＣ−Ｃ断面図である。
【図５】連結アーム部を示す斜視図である。
【図６】障子側アームの取付構造の一形態を示す分解斜視図である。
【図７】図２におけるＤ−Ｄ断面図である。
【符号の説明】
１ 方立
２ａ 右の開閉障子
２ｂ 左の開閉障子
３ 連結アーム
４ 方立側アーム
５ａ 右開閉障子側アーム
５ｂ 左開閉障子側アーム
６ 水平軸[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sash (including a curtain wall) having side-by-side opening and closing shojis that open and close in an overturning manner or a protruding manner.
[0002]
[Prior art]
Building sashes and curtain walls are composed of glass or other panels fitted into a grid-like frame structure consisting of vertical and invisible, and most of them are made into window shapes. Opening and closing doors are provided for ventilation. In general, the vertical is a shape that integrally has a panel holding portion having a T-shaped cross section on the outdoor side of the rectangular tube-shaped main body portion, and the side edge portion of the panel is swallowed into the panel holding portion. The panel is fixed in a vertical manner by inserting a pressing edge into the gap. At the opening / closing shoji part, a frame member is attached in the vertical panel holding portion, and a sticker of the shoji is brought into contact with the seal member attached to the frame member to ensure watertightness and airtightness.
[0003]
With the above structure, the vertical shaft of the opening and closing shoji will protrude from the vertical, the width of the window frame will be different from the outside between the fitting window and the opening and closing shoji, and the design uniformity and linearity Will be harmed. In recent years, there has been a noticeable tendency to prefer designs that are inconspicuous or inconspicuous from the outside, but when opening and closing shoji is placed side by side, until now it has been common sense to open and close the left and right Since a part of a frame or a frame member is interposed between the shojis (see, for example, Patent Document 1), a certain amount of space is opened between the shojis. It was difficult to make the part of the window frame inconspicuous.
[0004]
[Patent Document 1]
JP-A-60-238551 (FIGS. 3 and 9)
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a sash that can make the gap between the opening / closing obstacles as small as possible when the opening / closing obstacles are installed side by side.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the sash of the present invention comprises a vertical, a right opening / closing shoji that is positioned on the right side of the vertical and whose left side indoor side surface is in contact with the vertical outdoor side, and on the left side of the vertical. A left opening and closing shoddle whose right side indoor side is in contact with a vertical outdoor side surface, and a connecting arm that is positioned in a gap between the left and right opening and closing shoddle to connect the left and right opening and closing shoddle so as to be openable and closable. The connecting arm has one end fixed to the vertical outdoor side surface and the other end protruding from the gap between the left and right switching doors to the outside of the left and right switching doors, and one end of the connecting arm on the right. The right open / close shoji side arm with the other end projecting to the outside of the right open / close shoji, and the other end from the left open / close shoji The left and right open / close shoji arm that protrudes to the outside and the left and right open / close shoji arm It is composed of a single horizontal shaft that is pivotally attached to the outdoor end of the side arm, and the left and right opening / closing doors are connected in a vertical manner so that they can be protruded or tilted outward. Features.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 7 show an embodiment of the sash of the present invention. This sash is fixed to the housing 7 and vertically provided with a plurality of vertical vertices 1 at regular intervals. An intermediate seamless material 9 is erected on the lower end of the vertical 1 and a lower seamless material 10 is installed on the lower end of the vertical 1 to form a framework. The vertical 1 and the upper seamless 8 and the intermediate seamless 9 Opening and closing shojis 2a, 2b,... That open and close in an opening configured by the above are provided, and the opening configured by the vertical 1 and the intermediate seamless material 9 and the lower seamless material 10 are provided. A fixed shoji 12 is configured by fitting a multi-layer glass panel 11 and holding it in a slaughtered manner. The opening / closing doors 2a, 2b are connected to the outdoor side of the stand 1 by a connecting arm 3 provided at the lower end side of the opening / closing doors 2a, 2b.
[0008]
The stand 1 is composed of a stand-up main body 13 having a rectangular tube shape and a stand-up auxiliary member attached to a surface outside the room. The vertical auxiliary material has a different shape depending on whether the vertical is located on both sides or in the middle, whether it is a portion facing the opening / closing obstacles 2a, 2b, or a portion of the fixed obstacle 12. As shown in FIG. 3, it is a portion facing the open / close doors 2 a, 2 b, and on the outdoor side of the stand 1 located in the middle, the vertical hooks of the open / close doors 2 a, 2 b located on the left and right sides of the stand 1 The auxiliary material 15 for both sides of the opening / closing shoji which receives the indoor side surface of 14a is attached, On the other hand, it is the part which faces the opening / closing shoji 2a, and the opening / closing shoji located on one side is located in the outdoor side of the stand 1 located on both sides The auxiliary member 16 for one side opening / closing shoji which receives the indoor side surface of the vertical rod 14a of 2a, and the side part auxiliary material 17 which covers the side surface side of the opening / closing shoji 2a are attached. A packing material 18 that is in close contact with the vertical rod 14a of the shoji is provided on the outdoor side surfaces of the both-side open / close shoji assisting material 15 and the one-side opening / closing shoji assisting material 16. Further, as shown in FIG. 7, the stationary shoji 12 of the stand 1 is fixed to hold the indoor side surface of the glass panel 11 and the outdoor side surface of the glass panel 11. A shoji room outer side auxiliary material 20 is attached. Each vertical auxiliary member is attached to the vertical main body 13 by engaging the engaging portions 21 provided on the relative surfaces and fixing with the screws 22.
[0009]
The open / close shoji 2a and 2b are configured by vertically forming a vertical frame 14a and a horizontal frame 14b and holding a multilayer glass panel 23 on the inside thereof. Further, the left and right vertical rods 14a and the lower horizontal rod 14b constitute an indoor side surface and an outer side surface portion to hold an indoor side surface of the glass panel 23, and an outdoor side surface to constitute the glass panel 23. It is comprised with the pressing edge 25 holding the outdoor side surface. A tight material 26 is provided on the upper and left and right outer surfaces of the open / close shoji 2a and 2b to prevent rainwater from entering. Further, a packing material 18 is in close contact with the indoor side surfaces of the four-side flanges 14a and 14b.
[0010]
The opening / closing shoji 2a and 2b are arranged side by side with a gap S of 10 mm, and the connecting arm 3 is installed using the gap S. The connecting arm 3 includes a vertical arm 4 fixed to the vertical 1 and left and right open / close obstacles 5a and 5b attached to the open / close obstacles 2a and 2b located on the left and right of the vertical 1, respectively. The vertical arm 4 includes a mounting plate 28 fixed to the outdoor side surface of the vertical 1 with a screw 27, and protrudes from the clearance S between the open / close shoji 2a and 2b to the outdoor side of the shoji on the outdoor side of the mounting plate 28. A support arm 29 is provided, and a horizontal shaft 6 is provided at the tip of the support arm 29. In the part to which the mounting plate 28 is attached, the auxiliary material 15 for both sides opening / closing shoji is cut off. The vertical arm 4 attached to the vertical stand 1 on both sides does not have the mounting plate 28, and the indoor side end portion of the support arm 29 is attached to the vertical side auxiliary material 17 with screws 27. It is fixed. The left and right opening / closing shoji side arms 5a and 5b are engaged with a mounting portion 31 which is inserted into the vertical rod 14a of the shoji and fixed to the vertical rod 14a with a screw 30 and protrudes to the outdoor side of the shoji so as to be rotatable about the horizontal shaft 6. And a shaft engaging portion 32 to be joined. As shown in FIG. 6, the attachment part 31 of the opening / closing shoji side arm is inserted into the bag through a hole 33 formed by cutting out the lower end portion of the pressing edge 25 for the vertical rod 14a, and the inner surface of the outer surface portion of the vertical rod 14a. It abuts on the side and is fixed with screws 30 from the outside. The mounting portion 31 is fitted and firmly fixed to the hole 33, and the hole 33 is blocked by the indoor side surface of the shaft engaging portion 32, and rainwater is prevented from entering the bag. The shaft engaging portion 32 has a notch 34 for inserting the horizontal shaft 6, and the portion that contacts the horizontal shaft 6 is configured as a separate shaft retainer 35. The shaft retainer 35 is fixed to the shaft engaging portion 32 by a set screw 36. The opening / closing doors 2a and 2b rotate about the horizontal shafts 6 and 6 on both sides, and can be opened and closed in a so-called outwardly tilting manner.
[0011]
The procedure for attaching the open / close shoji 2a and 2b to the vertical 1 will be described. First, the vertical arm 4 and the left and right open / close open arms 5a and 5b are respectively attached to the vertical 1 and open / close shoji 2a and 2b. deep. At this time, the shaft retainer 35 is removed from the shaft engaging portion 32. Next, after inserting the horizontal shaft 6 of the vertical arm 4 into the notch 34 of the shaft engaging portion 32 of the opening / closing shoji side arm 5a, 5b, the shaft presser 35 is fitted into the shaft engaging portion 32 and the horizontal shaft 6 is held by the shaft engaging portion 32. Next, a set screw 36 is screwed into the shaft engaging portion 32, and the shaft presser 35 is fixed at its tip. Finally, the connecting member 37 is attached between the vertical 1 and the opening / closing shoji 2a and 2b. The connecting member 37 is for preventing the opening and closing shoji 2a and 2b from opening more than a certain angle, and can use a piston-like one that expands and contracts, a link-like one that bends, a wire, or the like.
[0012]
The horizontal width A of the adjacent vertical sliding doors 14a is the same as the horizontal width A of the vertical frame of the fixed sliding door 12 positioned below (the horizontal width A of the outdoor side surface of the fixed sliding door outdoor auxiliary material 20). Yes, the appearance design is made uniform and linear in the opening and closing shoji 2a and 2b and the fixed shoji 12 portion.
[0013]
The present invention is not limited to the embodiments described above. When the connecting arm 3 is provided at the upper end of the opening / closing doors 2a, 2b, the opening / closing doors 2a, 2b open and close in a protruding manner with the upper side as a fulcrum. The horizontal axis 6 of the vertical arm 4 is not limited to the one formed integrally with the vertical arm 4, but is separate from the vertical arm 4, and the left and right opening / closing obstacle side arms 5 a and 5 b are connected to the vertical side. It may be inserted later into the arm 4. The left and right opening / closing shoji side arms 5a and 5b only need to be fitted and fixed to the heel so that the mounting portion 31 does not protrude outward from the side surface of the opening / closing shoji. A hole or a notch can be provided and fixed to the side surface or the outdoor side surface of the vertical rod 14a or the horizontal rod 14b.
[0014]
【The invention's effect】
The sash of this invention can make the clearance gap between opening-and-closing obstacles small as much as possible, when providing the opening-and-closing opening-and-closing obstacle which opens and closes in an outward or protruding manner side by side. This has the advantage that the degree of freedom in designing the design of the opening / closing door is improved, and that it is possible to easily implement a sophisticated appearance design. Moreover, the workability | operativity which attaches an opening / closing shoji in the direction is also favorable.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA in FIG.
FIG. 2 is an outdoor front view showing an embodiment of a sash according to the present invention.
FIG. 3 is a cross-sectional view taken along the line BB in FIG.
4 is a cross-sectional view taken along the line CC in FIG.
FIG. 5 is a perspective view showing a connecting arm portion.
FIG. 6 is an exploded perspective view showing an embodiment of a shoji arm mounting structure.
7 is a cross-sectional view taken along the line DD in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side 2a Right open / close shoji 2b Left open / close shoji 3 Connecting arm 4 Vertical arm 5a Right open / close shoji arm 5b Left open / close shoji arm 6 Horizontal axis

Claims (1)

方立と、方立の右側に位置し左側端部室内側面が方立の室外側面に当接する右の開閉障子と、方立の左側に位置し右側端部室内側面が方立の室外側面に当接する左の開閉障子と、左右の開閉障子の隙間に位置し左右の開閉障子を方立に開閉自在に連結する連結アームとを備え、連結アームは、一端部を方立の室外側面に固定し他端部を左右の開閉障子の隙間から左右の開閉障子よりも室外側に突出した方立側アームと、一端部を右の開閉障子の左側縁部に嵌め込み他端部を右の開閉障子よりも室外側に突出した右開閉障子側アームと、一端部を左の開閉障子の右側縁部に嵌め込み他端部を左の開閉障子よりも室外側に突出した左開閉障子側アームと、左右の開閉障子側アームの室外側端部を方立側アームの室外側端部に対して回動自在に軸着する一本の水平軸とから構成してあり、左右の開閉障子を突き出し自在または外倒し自在に方立に連結していることを特徴とするサッシ。A right-hand side door that is positioned on the right side of the vertical and the left side indoor side of the wall is in contact with the vertical side of the vertical; The left and right open / close doors are in contact with the left and right open / close doors, and the left and right open / close doors are connected to open and close freely. The other end is protruded from the gap between the left and right switching doors to the outside of the left and right opening doors, and one end is fitted to the left edge of the right opening door and the other end is inserted into the right opening door. The left open / close shoji arm that projects to the outside of the left open / close shoji, and the left open / close shoji arm that projects the other end to the outside of the left open / close shoji Attaching the outdoor end of the open / close shoji arm to the outdoor end of the vertical arm That Yes constitutes a single horizontal axis, sash, characterized in that linked to freely mullion tilted freely or outer projecting the left and right of the opening and closing sliding door.

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