JP2003155867A - Opening section device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening section device capable of easily opening and closing a sliding door and, further, improving the design. SOLUTION: The opening section device 1 includes a frame body 2 comprised of a head 2a, a sill 2b and right and left jambs 2c and 2d provided to an opening of a building and sliding doors 3 and 4 provided to the inside of the frame body 2 in a double sliding openable manner and an opening and closing aid 10 for assisting the opening and closing of the sliding doors 3 and 4 provided to a door head stile 5d, the opening and closing auxiliary aid 10 includes a body section 12 having an operating section 11 pushingly moving the sliding doors 3 and 4 in the direction of opening by reaction force pushing the jambs 2c and 2d provided to the inside of the door edge stile 5d and a handle section 13 provided to an indoor side of the door head stile 5d, operationally controlling the operating section 11 and, at the same time, necessary for opening or closing of the sliding doors 3 and 4.

Description

【発明の詳細な説明】 【０００１】 【発明の属する技術分野】本発明は、開口部装置に係
り、特に障子の開閉を補助する開閉補助機構を有する開
口部装置に関する。 【０００２】 【従来の技術】この種の開口部装置は、建物の開口に設
けられる上枠、下枠及び左右の縦枠からなる枠体と、こ
の枠体内に引違い開閉自在に設けられる障子とを有し、
枠体と障子との間および障子間には気密材が配設されて
いて、障子全閉時には室内外間の気密性を保持し得る構
造となっている。このため、特にビルやマンション等の
高層階で風圧を受け易かったり、あるいは換気扇の使用
により室内外に気圧差が生じると、全閉時の障子が枠体
に押し付けられて摩擦抵抗が増大し、障子が開けにくく
なる問題があった。 【０００３】このような問題を解決するために、障子の
開閉を補助する開閉補助機構を備えた開口部装置が提案
されるに至っている。図７は先に提案されている開口部
装置（未公開）の横断面図、図８は図７の開口部装置の
要部を示す図である。この開口部装置は、建物の躯体の
開口に設けられる上枠、下枠２ｂ及び左右の縦枠２ｃ，
２ｄからなる枠体２と、この枠体２内に引違い開閉自在
に設けられる障子３，４とを有し、障子３，４の戸先框
５ｄには開閉補助機構４０が設けられている。 【０００４】前記開閉補助機構４０は、戸先框５ｄの室
内面に設けられ縦枠２ｃ，２ｄを押圧する反力で障子
３，４を開方向へ押し動かす作動部４１を有する本体部
４２と、この本体部４２に設けられ前記作動部４１を作
動操作すると共に障子３，４を開閉操作するための把手
部４３とから主に構成されており、いわゆるテコの原理
で障子３，４を容易に開けることができるようになって
いる。前記作動部４１にはローラ４４が設けられ、縦枠
２ｃ，２ｄにはローラ受け４５が設けられている。 【０００５】 【発明が解決しようとする課題】しかしながら、前述の
開口部装置においては、開閉補助機構４０の本体部４２
が戸先框５ｄの室内面に取付けられていて大きく露出し
ているため、意匠性（見栄え）が悪いという問題があっ
た。また、内障子３側のローラ受け４５は室内側に露出
した状態で設けられるため、意匠性が悪いだけでなく、
連窓サッシ等ではローラ受け４５の設置スペースがなく
納まりが悪いといった問題もある。 【０００６】本発明は、前記事情を考慮してなされたも
ので、障子の開閉が容易で、操作性及び意匠性の向上が
図れる開口部装置を提供することを目的とする。 【０００７】 【課題を解決するための手段】本発明に係る開口部装置
は、建物の開口に設けられる上枠、下枠及び左右の縦枠
からなる枠体と、該枠体内に引違いまたは片引きに開閉
自在に設けられる障子と、該障子の戸先框に設けられ障
子の開閉を補助する開閉補助機構とを備え、該開閉補助
機構は、戸先框の内部に設けられ縦枠を押圧する反力で
障子を開方向へ押し動かす作動部を有する本体部と、戸
先框の室内側に設けられ前記作動部を作動操作すると共
に障子を開閉操作するための把手部とを有していること
を特徴とする。 【０００８】 【発明の実施の形態】以下に、本発明の実施の形態を添
付図面に基いて詳述する。図１は本発明の実施の形態を
示す開口部装置の室内側正面図、図２は図１の開口部装
置の要部を示す図、図３は図１の開口部装置の拡大横断
面図、図４は図２の要部の拡大分解図、図５は開閉補助
機構の本体部を示す図で、（ａ）は側面図、（ｂ）は平
面図、図６は戸先框に開閉補助機構を取付けた状態の平
面図である。 【０００９】これらの図において、１は例えば窓サッシ
等の開口部装置、建物の躯体の開口に設けられる方形枠
状の枠体２を備えている。この枠体２は、例えばアルミ
ニウム合金の形材からなる上枠２ａ、下枠２ｂ及び左右
の縦枠２ｃ，２ｄにより構成されている。この枠体２内
には、図示例では内外２枚の障子３，４が引違い開閉自
在に設けられている。 【００１０】障子３，４は、方形枠状の框５内にパッキ
ン６を介してガラス７を嵌め込んで構成されている。框
体５は、例えばアルミニウム合金の形材からなる上框５
ａ、下框５ｂ及び左右の縦框（召し合せ框と戸先框）５
ｃ，５ｄにより構成されている。また、障子３，４に
は、下枠２ｂに形成されたレール上を走行する戸車が設
けられている（図示省略）。また、内障子３の召し合せ
框５ｃには、障子３，４を全閉状態に施錠するためのク
レセント８が設けられている。 【００１１】そして、前記障子３，４の戸先框５ｄに
は、障子３，４の開閉を補助する開閉補助機構１０が設
けられている。この開閉補助機構１０は、戸先框５ｄの
内部に設けられ縦枠２ｃ，２ｄを押圧する反力で障子
３．４を開方向へ押し動かす作動部１１を有する本体部
１２と、戸先框５ｄの室内側に設けられ前記作動部１１
を作動操作すると共に障子３，４を開閉操作するための
把手部１３とを有している。更に具体的には、把手部１
３は、これを戸先框５ｄの室内面に取付けるための台座
部１４を有している。 【００１２】前記本体部１２は、図４ないし図５にも示
すように、剛性を有する金属板を断面長方形の角筒状に
折り曲げてなるケーシング１５を有し、このケーシング
１５内にレバー状の作動部１１が回動自在に収容されて
いる。作動部１１の基部にはボス部１６を有し、このボ
ス部１６の両端がケーシング１５の両側面に設けた孔部
１７に回動自在に嵌合されている。ボス部１６には把手
部１３の基部に突設された先端側が断面四角形の駆動軸
１８を嵌挿係合するための断面四角形の軸孔１９が形成
されている。 【００１３】前記作動部１１の先端（下端）にはローラ
２０が軸支されている。また、ケーシング１５の前面部
１５ａには作動部１１の先端側が出没（突出及び没入）
可能な開口部２１が設けられている。作動部１１の基部
にはケーシング１５の背面部１５ｂに当接して作動部１
１の突出方向への回動を所定の範囲で規制するためのス
トッパ２２が設けられている。すなわち、作動部１１の
突出方向の回動（図５（ａ）で右回り）はストッパ２２
がケーシング１５の背面部１５ｂに当接することで規制
され、作動部１１の没入方向の回動（同左回り）は作動
部１１がケーシング１５の背面部１５ｂに当接すること
で規制される。ケーシング１５内には、作動部１１を没
入方向へ復帰させるための付勢手段であるバネ２３が設
けられている。また、ケーシング１５の前面部１５ａの
上端及び下端には、これを戸先框５ｄの前壁部２４に固
着具例えばネジ２５で取付けるための取付片部２６が形
成されている。 【００１４】前記戸先框５ｄは図６にも示すように中空
部２７を有するホロー構造とされ、その中空部２７の前
壁部２４には前記本体部１２を中空部２７内に挿入する
ための開口部２８が設けられ、その前壁部２４に前記ケ
ーシング１５の取付片部２６が当接されてネジ止めされ
る。 【００１５】把手部１３は、例えば合成樹脂により握り
易い棒状に成形されており、その基部に直角に駆動軸１
８が突設されている。駆動軸１８の基部側にはＣリング
２９を装着略するための装着溝３０が形成されている。
前記台座部１４は、例えば合成樹脂により偏平状に形成
されており、その略中央部には駆動軸１８を挿通する軸
穴３１が設けられていると共にその上下位置にはこの台
座部１４を戸先框５ｄの室内面に固着具例えばネジ３２
で固定するための孔部３３が設けられている。 【００１６】台座部１４は、把手部１３の駆動軸１８に
おける断面円形の基部側に回転自在に装着され、装着溝
３０に装着したＣリング２９によって駆動軸１８から脱
落しないように保持されてる。戸先框５ｄの室内面には
駆動軸１８の先端側を前記本体部１２の作動部１１の軸
孔１９に嵌挿するための孔部３４が設けられている。 【００１７】なお、縦枠２ｃ、２ｄの内側面（対向面）
には障子３，４の閉鎖時に戸先框５ｄの先端側室内面と
の間を封止する気密材３５を取付けるための気密フィン
３６，３７と、その気密材３５に戸先框５ｄの先端側室
内面を押圧すべく戸先框５ｄの先端部に適宜間隔で設け
たガイド３８を介して戸先框５ｄを室内側へ案内するガ
イドフィン３９とが設けられている。この場合、開閉補
助機構１０の作動部１１が把手部１３の操作により縦枠
２ｃ、２ｄ側に突出したときに、作動部１１のローラ２
０と前記ガイドフィン３９とが干渉するのを防止するた
めにガイドフィン３９はローラ２０と対応する部分が切
り欠かれている（図示省略）。 【００１８】以上の構成からなる開口部装置によれば、
建物の開口に設けられる上枠２ａ、下枠２ｂ及び左右の
縦枠２ｃ，２ｄからなる枠体２と、該枠体２内に引違い
開閉自在に設けられる障子３，４と、該障子３，４の戸
先框５ｄに設けられ障子３，４の開閉を補助する開閉補
助機構１０とを備え、該開閉補助機構１０は、戸先框５
ｄの内部に設けられ縦枠２ｃ，２ｄを押圧する反力で障
子３，４を開方向へ押し動かす作動部１１を有する本体
部１２と、戸先框５ｄの室内側に設けられ前記作動部１
１を作動操作すると共に障子３，４を開閉操作するため
の把手部１３とを有しているため、障子３，４の開閉を
容易（楽）に行うことができ、操作性の向上が図れると
共に、開閉補助機構１０の本体部１２が室内側に露出す
ることがなく、意匠性の向上が図れる。 【００１９】すなわち、開閉補助機構１０の大きさの大
きい本体部１２が障子３，４の戸先框５ｄの内部に配置
されているため、本体部１２が室内側から目に触れるこ
とが無く、意匠性の向上が図れる。また、把手部１３は
これを戸先框５ｄの室内面に取付けるための台座部１４
を有しているが、把手部１３に加わる力の殆どは駆動軸
１８を介して本体部１２に伝えられ、把手部１３を脱落
しないように戸先框５ｄに取付けている台座部１４は、
強度上においても厚さ及び大きさを小さく形成すること
ができるため、意匠性を損なうことはない。 【００２０】障子３，４の全閉状態において、障子３，
４を開ける場合には、把手部１３を掴んで障子３，４の
開方向に力を加えれば良い。この力により把手部１３が
駆動軸１８を支点に回動し、その回動力が駆動軸１８を
介して作動部１１に伝達され、作動部１１が駆動軸１８
を支点にバネ２３の付勢力に抗して回動し、作動部１１
先端のローラ２０が本体部１２のケーシング１５の開口
部２１から縦枠２ｃ，２ｄ側へ突出して縦枠２ｃ，２ｄ
の内側面を押圧する。この場合、把手部１３と作動部１
１のレバー比によってローラ２０を縦枠２ｃ，２ｄの内
側面に大きな力で押圧することができ、その押圧による
反力と把手部１３に加える開方向の力とによって障子
３，４を容易（楽に）に開けることが可能となる。 【００２１】従って、ビルやマンション等の高層階での
風圧や換気扇の使用による室内外の気圧差により全閉時
の障子３，４が枠体２に押し付けられて開けにくくなっ
ていたとしても、その障子３，４を容易に開けることが
できる。また、棒状の把手部１３を握って障子３，４の
開閉操作を行うため、開閉操作が容易にでき、操作性の
向上が図れる。また、把手部１３から手を放すと、バネ
２３の付勢力によって把手１３及び作動部１１は元の待
機位置（作動部先端のローラ２０はケーシング１５内）
に復帰される。 【００２２】以上、本発明の実施の形態を図面により詳
述してきたが、本発明は前記実施の形態に限定されるも
のではなく、本発明の要旨を逸脱しない範囲での種々の
設計変更等が可能である。例えば、本発明は窓サッシだ
けでなく、テラスサッシや連窓サッシ、引戸等にも適用
可能である。また、実施例では内外の両障子の戸先框に
開閉補助機構を設けた例が示されているが、本発明は一
方の障子（例えば外障子）の戸先框のみに開閉補助機構
が設けられていても良い。すなわち、引違い障子の場合
は、少なくとも一方の障子の戸先框に開閉補助機構が設
けられる。また、一方の障子が枠体に固定された嵌め殺
しの障子で、他方の障子が片引き障子である場合には、
片引き障子の戸先框に開閉補助機構が設けられる。 【００２３】また、実施例では縦枠にローラ受けが設け
られていないが、ローラ受けが設けられていても良い。
ローラ受けを設ける場合、内障子側のローラ受けは縦枠
２ｄの気密フィン３７よりも室外側に配置されるため、
ローラ受けが室内側に露出せず意匠性が良いと共に納ま
りも良い。 【００２４】 【発明の効果】以上要するに本発明に係る開口部装置よ
れば、建物の開口に設けられる上枠、下枠及び左右の縦
枠からなる枠体と、該枠体内に引違いまたは片引きに開
閉自在に設けられる障子と、該障子の戸先框に設けられ
障子の開閉を補助する開閉補助機構とを備え、該開閉補
助機構は、戸先框の内部に設けられ縦枠を押圧する反力
で障子を開方向へ押し動かす作動部を有する本体部と、
戸先框の室内側に設けられ前記作動部を作動操作すると
共に障子を開閉操作するための把手部とを有しているた
め、障子の開閉が容易で操作性の向上が図れると共に、
本体部が室内側に露出することがなく、意匠性の向上が
図れる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening device, and more particularly to an opening device having an opening and closing assist mechanism for assisting opening and closing of a shoji. 2. Description of the Related Art An opening device of this kind is composed of an upper frame, a lower frame, and left and right vertical frames provided at an opening of a building, and a shoji screen provided in the frame so as to be freely opened and closed. And having
An airtight material is provided between the frame and the shoji and between the shoji, so that when the shoji is fully closed, the airtightness between the room and the outside can be maintained. For this reason, especially when high-rise floors such as buildings and condominiums are susceptible to wind pressure, or if a pressure difference occurs between the inside and outside of the room due to the use of a ventilation fan, the sliding door when fully closed is pressed against the frame, and the frictional resistance increases, There was a problem that it was difficult to open the shoji. In order to solve such a problem, an opening device having an opening / closing assist mechanism for assisting opening / closing of a shoji has been proposed. FIG. 7 is a cross-sectional view of the previously proposed opening device (not disclosed), and FIG. 8 is a diagram showing a main part of the opening device of FIG. This opening device includes an upper frame, a lower frame 2b, and left and right vertical frames 2c, which are provided in an opening of a building frame.
It has a frame 2 made of 2d, and sliding doors 3 and 4 which are provided inside the frame 2 so as to be able to be opened and closed by pulling. A door frame 5d of the sliding doors 3 and 4 is provided with an opening and closing assist mechanism 40. . The opening / closing auxiliary mechanism 40 includes a main body 42 provided on the indoor surface of the door frame 5d and having an operating portion 41 for pushing the shojis 3 and 4 in the opening direction by a reaction force for pressing the vertical frames 2c and 2d. And a handle 43 provided on the main body 42 for operating the operating portion 41 and for opening and closing the shojis 3 and 4. The shojis 3 and 4 can be easily operated by the so-called leverage principle. You can open it. The operating portion 41 is provided with a roller 44, and the vertical frames 2c and 2d are provided with a roller receiver 45. [0005] However, in the opening device described above, the main body 42 of the opening / closing assist mechanism 40 is provided.
However, since it is attached to the interior surface of the door frame 5d and is largely exposed, there is a problem that the design (appearance) is poor. In addition, since the roller receiver 45 on the side of the inner shoji 3 is provided in a state exposed to the indoor side, not only the design is poor, but also
In the case of a continuous window sash or the like, there is also a problem that there is no space for installing the roller receiver 45 and the storage is poor. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an opening device which can easily open and close a sash and improve operability and design. [0007] An opening device according to the present invention comprises: a frame comprising an upper frame, a lower frame, and left and right vertical frames provided at an opening of a building; A sliding door that can be freely opened and closed in a single pull, and an opening and closing auxiliary mechanism that is provided on the door frame of the sliding door and assists in opening and closing the sliding door, the opening and closing auxiliary mechanism is provided inside the door frame and has a vertical frame. It has a main body having an operating portion for pushing the shoji in the opening direction by a pressing force, and a handle provided on the indoor side of the door frame for operating the operating portion and for opening and closing the shoji. It is characterized by having. Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view of the interior of an opening device according to an embodiment of the present invention, FIG. 2 is a diagram showing a main part of the opening device of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of the opening device of FIG. 4, FIG. 4 is an enlarged exploded view of a main part of FIG. 2, FIG. 5 is a view showing a main body of the opening and closing auxiliary mechanism, (a) is a side view, (b) is a plan view, and FIG. It is a top view in the state where the auxiliary mechanism was attached. In these figures, reference numeral 1 denotes an opening device such as a window sash, and a rectangular frame 2 provided at an opening of a building frame. The frame 2 includes an upper frame 2a, a lower frame 2b, and left and right vertical frames 2c and 2d made of, for example, an aluminum alloy profile. In the frame 2, in the illustrated example, two inner and outer shojis 3 and 4 are provided so that they can be opened and closed by pulling. The shoji screens 3 and 4 are configured by fitting a glass 7 through a packing 6 into a square frame-shaped frame 5. The frame body 5 is, for example, an upper frame 5 made of an aluminum alloy profile.
a, lower frame 5b and left and right vertical frames (combination frame and door frame) 5
c, 5d. Further, the sliding doors 3 and 4 are provided with door rollers that run on rails formed on the lower frame 2b (not shown). In addition, a crescent 8 for locking the shoji 3 and 4 in the fully closed state is provided on the joining frame 5c of the inner shoji 3. An opening and closing assist mechanism 10 for assisting the opening and closing of the shoji 3 and 4 is provided on the door frame 5d of the shoji 3 and 4. The opening / closing auxiliary mechanism 10 includes a main body 12 having an operating portion 11 provided inside the door frame 5d and for pushing the shoji screen 3.4 in the opening direction by a reaction force pressing the vertical frames 2c and 2d, and a door frame. 5d is provided on the indoor side of the
And a handle 13 for opening and closing the shoji 3 and 4. More specifically, handle 1
3 has a pedestal portion 14 for attaching it to the interior surface of the door frame 5d. As shown in FIGS. 4 and 5, the main body 12 has a casing 15 formed by bending a rigid metal plate into a rectangular tube having a rectangular cross section. The operation part 11 is rotatably accommodated. A boss 16 is provided at the base of the operating portion 11, and both ends of the boss 16 are rotatably fitted into holes 17 provided on both side surfaces of the casing 15. The boss 16 is formed with a shaft hole 19 having a rectangular cross section for projecting and engaging a drive shaft 18 having a rectangular cross section at the tip end protruding from the base of the handle 13. A roller 20 is supported at the tip (lower end) of the operating portion 11. In addition, the front end side of the actuating portion 11 protrudes (projects and sinks) on the front surface portion 15 a of the casing 15.
A possible opening 21 is provided. The base of the operating part 11 is in contact with the rear part 15 b of the casing 15 and
A stopper 22 is provided for restricting the rotation of the projection 1 in the protruding direction within a predetermined range. That is, the rotation of the operating portion 11 in the protruding direction (clockwise in FIG.
Is restricted by contact with the rear portion 15 b of the casing 15, and rotation of the operating portion 11 in the immersion direction (counterclockwise rotation) is restricted by the operating portion 11 contacting the rear portion 15 b of the casing 15. A spring 23 is provided in the casing 15 as urging means for returning the operating portion 11 in the immersion direction. At the upper and lower ends of the front portion 15a of the casing 15, there are formed attachment pieces 26 for attaching the front portion 15a to the front wall portion 24 of the door frame 5d with a fixing tool, for example, a screw 25. As shown in FIG. 6, the door frame 5d has a hollow structure having a hollow portion 27, and the front wall 24 of the hollow portion 27 is used to insert the main body 12 into the hollow portion 27. The mounting piece 26 of the casing 15 abuts on the front wall 24 and is screwed. The handle portion 13 is formed of, for example, a synthetic resin into a stick shape which is easy to grasp, and the drive shaft 1 is perpendicular to the base thereof.
8 are protruded. A mounting groove 30 for mounting the C-ring 29 is formed on the base side of the drive shaft 18.
The pedestal portion 14 is formed in a flat shape by, for example, a synthetic resin, and a shaft hole 31 through which the drive shaft 18 is inserted is provided at a substantially central portion thereof. A fixing tool such as a screw 32 is attached to the indoor surface of the front frame 5d.
There is provided a hole 33 for fixing with. The pedestal portion 14 is rotatably mounted on the base of the handle portion 13 having a circular cross section in the drive shaft 18, and is held by a C-ring 29 mounted in the mounting groove 30 so as not to fall off the drive shaft 18. A hole 34 is provided on the indoor surface of the door frame 5d for inserting the distal end of the drive shaft 18 into the shaft hole 19 of the operating portion 11 of the main body 12. The inner surfaces (opposing surfaces) of the vertical frames 2c and 2d.
The airtight fins 36 and 37 for attaching an airtight material 35 for sealing the space between the door frame 5d and the interior of the door frame 5d when the shoji screens 3 and 4 are closed, and the tip of the door frame 5d is attached to the airtight material 35. Guide fins 39 are provided to guide the door-end frame 5d to the indoor side via guides 38 provided at appropriate intervals at the end of the door-end frame 5d to press the side indoor surface. In this case, when the operating portion 11 of the opening and closing assist mechanism 10 is protruded toward the vertical frames 2c and 2d by operating the handle portion 13, the roller 2 of the operating portion 11
In order to prevent interference between the guide fins 39 and the guide fins 39, portions of the guide fins 39 corresponding to the rollers 20 are cut out (not shown). According to the opening device having the above configuration,
A frame 2 composed of an upper frame 2a, a lower frame 2b and left and right vertical frames 2c, 2d provided in an opening of the building; sliding doors 3, 4 provided in the frame 2 so as to be freely opened and closed; , 4 provided with a door frame 5d for assisting the opening and closing of the shoji screens 3 and 4;
d and a main body 12 having an operating portion 11 for pushing the shojis 3 and 4 in the opening direction by a reaction force pressing the vertical frames 2c and 2d, and the operating portion provided on the indoor side of the door frame 5d. 1
1 and a handle 13 for opening and closing the sliding doors 3 and 4, the opening and closing of the sliding doors 3 and 4 can be performed easily (comfortably), and the operability can be improved. At the same time, the main body 12 of the opening / closing assisting mechanism 10 is not exposed to the indoor side, so that the design can be improved. That is, since the large body portion 12 of the opening / closing assist mechanism 10 is disposed inside the door frame 5d of the shojis 3 and 4, the body portion 12 is not seen from the indoor side, The design can be improved. The handle 13 is a pedestal 14 for attaching the handle 13 to the indoor surface of the door frame 5d.
However, most of the force applied to the handle 13 is transmitted to the main body 12 via the drive shaft 18, and the pedestal 14 attached to the door frame 5 d so that the handle 13 does not fall off,
Since the thickness and the size can be formed small in terms of strength, the design is not impaired. In the fully closed state of the shojis 3 and 4,
When opening the sliding door 4, the handle 13 may be grasped and a force may be applied in the opening direction of the sliding doors 3 and 4. With this force, the handle 13 rotates about the drive shaft 18 as a fulcrum, and the turning power is transmitted to the operating unit 11 via the drive shaft 18, and the operating unit 11
Is pivoted against the urging force of the spring 23 with the
The roller 20 at the tip protrudes from the opening 21 of the casing 15 of the main body 12 toward the vertical frames 2c and 2d so that the vertical frames 2c and 2d
Press the inside surface of the In this case, the handle portion 13 and the operating portion 1
The roller 20 can be pressed against the inner surfaces of the vertical frames 2c and 2d with a large force by the lever ratio of 1. The shoji screens 3 and 4 are easily formed by the reaction force due to the pressing and the opening direction force applied to the handle portion 13 ( It can be opened easily. Therefore, even if the sliding doors 3 and 4 when fully closed are pressed against the frame 2 due to the wind pressure on a high floor of a building or an apartment or the pressure difference between the inside and outside due to the use of a ventilation fan, it is difficult to open the sliding doors. The shoji screens 3 and 4 can be easily opened. Further, since the opening and closing operations of the shoji screens 3 and 4 are performed by gripping the rod-shaped handle portion 13, the opening and closing operations can be easily performed, and the operability can be improved. When the grip 13 is released, the grip 13 and the operating portion 11 are returned to their original standby positions by the urging force of the spring 23 (the roller 20 at the tip of the operating portion is in the casing 15).
Is returned to. Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments, and various design changes and the like can be made without departing from the gist of the present invention. Is possible. For example, the present invention is applicable not only to window sashes but also to terrace sashes, continuous window sashes, sliding doors, and the like. Further, in the embodiment, an example in which the opening and closing assist mechanism is provided in the door frame of both inner and outer shojis is shown. However, in the present invention, the opening and closing assist mechanism is provided only in the door frame of one shoji (for example, the outer shoji). It may be. That is, in the case of a sliding sliding door, an opening and closing assist mechanism is provided on the door frame of at least one of the sliding doors. Also, if one of the shojis is a fixed-fitting shoji fixed to the frame and the other shoji is a one-sided shoji,
An opening and closing assist mechanism is provided on the door frame of the single-drawing shoji. In the embodiment, the vertical frame is not provided with a roller receiver, but a roller receiver may be provided.
When the roller receiver is provided, since the roller receiver on the inner sash side is disposed more outdoor than the airtight fin 37 of the vertical frame 2d,
The roller receiver is not exposed to the interior of the room, so that the design is good and the storage is good. In summary, according to the opening device of the present invention, a frame composed of an upper frame, a lower frame, and left and right vertical frames provided at an opening of a building, and a pulling member or a single member within the frame member. The sliding door is provided with a sliding door that can be freely opened and closed, and an opening and closing auxiliary mechanism that is provided on the door frame of the sliding door and assists in opening and closing the sliding door. The opening and closing auxiliary mechanism is provided inside the door frame and presses a vertical frame. A main body having an operating portion for pushing the shoji in the opening direction with a reaction force to
Since it has a handle provided on the indoor side of the door frame and for operating and operating the operating part and for opening and closing the shoji, the opening and closing of the shoji is easy and operability can be improved,
Since the main body is not exposed to the indoor side, the design can be improved.

【図面の簡単な説明】 【図１】本発明の実施の形態を示す開口部装置の室内側
正面図である。 【図２】図１の開口部装置の要部を示す図である。 【図３】図１の開口部装置の拡大横断面図である。 【図４】図２の要部の拡大分解図である。 【図５】開閉補助機構の本体部を示す図で、（ａ）は側
面図、（ｂ）は平面図である。 【図６】戸先框に開閉補助機構を取付けた状態の平面図
である。 【図７】先に提案されている開口部装置の横断面図であ
る。 【図８】図７の開口部装置の要部を示す図である。 【符号の説明】 １ 開口部装置 ２ 枠体 ２ａ 上枠 ２ｂ 下枠 ２ｃ，２ｄ 縦枠 ３，４ 障子 ５ｄ 戸先框 １０ 開閉補助機構 １１ 操作部 １２ 本体部 １３ 把手部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an indoor side front view of an opening device according to an embodiment of the present invention. FIG. 2 is a view showing a main part of the opening device of FIG. 1; FIG. 3 is an enlarged cross-sectional view of the opening device of FIG. 1; FIG. 4 is an enlarged exploded view of a main part of FIG. 2; 5A and 5B are diagrams illustrating a main body of the opening and closing assist mechanism, wherein FIG. 5A is a side view and FIG. 5B is a plan view. FIG. 6 is a plan view showing a state where an opening and closing assist mechanism is attached to a door frame. FIG. 7 is a cross-sectional view of the previously proposed opening device. FIG. 8 is a diagram showing a main part of the opening device of FIG. 7; [Description of Signs] 1 Opening device 2 Frame 2a Upper frame 2b Lower frame 2c, 2d Vertical frame 3, 4 Shoji 5d Door frame 10 Opening / closing auxiliary mechanism 11 Operation unit 12 Main unit 13 Handle

Claims (1)

【特許請求の範囲】 【請求項１】 建物の開口に設けられる上枠、下枠及び
左右の縦枠からなる枠体と、該枠体内に引違いまたは片
引きに開閉自在に設けられる障子と、該障子の戸先框に
設けられ障子の開閉を補助する開閉補助機構とを備え、
該開閉補助機構は、戸先框の内部に設けられ縦枠を押圧
する反力で障子を開方向へ押し動かす作動部を有する本
体部と、戸先框の室内側に設けられ前記作動部を作動操
作すると共に障子を開閉操作するための把手部とを有し
ていることを特徴とする開口部装置。Claims 1. A frame comprising an upper frame, a lower frame, and left and right vertical frames provided at an opening of a building, and a shoji provided in the frame so as to be capable of being pulled open or closed. An opening and closing assist mechanism provided on the door frame of the shoji to assist in opening and closing the shoji.
The opening and closing assist mechanism is provided inside the door frame and has a main body having an operating portion that pushes the shoji in the opening direction by a reaction force that presses the vertical frame, and the operating portion provided on the indoor side of the door frame. An opening device comprising: a handle for operating and opening and closing a shoji.