JP2020090861A

JP2020090861A - Frame and natural wind power ventilation window

Info

Publication number: JP2020090861A
Application number: JP2018229204A
Authority: JP
Inventors: 藤岡　慎吾; Shingo Fujioka; 慎吾藤岡
Original assignee: Fujisash Co Ltd
Current assignee: Fujisash Co Ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2020-06-11
Anticipated expiration: 2038-12-06
Also published as: JP7229742B2

Abstract

To realize a frame structure that is excellent in workability of attaching to a window frame and can reduce manufacturing cost.SOLUTION: An upper frame 32 arranged on the indoor side of an upper frame 7 constituting the upper side of a window frame 4 is composed of an outdoor frame member 35 arranged on the outdoor side and an indoor frame member 36 arranged on the indoor side. The outdoor frame member 35 is arranged adjacent to the indoor side of the upper frame 7 and is pushed toward the upper frame 7 toward the outdoor side so as to be fitted and supported with respect to the upper frame 7. The indoor frame member 36 is arranged adjacent to the indoor side of the outdoor frame member 35 and is pushed toward the outdoor frame member 35 toward the outdoor side so as to be fitted and supported with respect to the outdoor frame member 35.SELECTED DRAWING: Figure 2

Description

本発明は、窓枠やドア枠などの開口枠の屋内側に配置される額縁枠を構成する額縁、及び、窓障子の開度を自然風力によって調整自在とした自然風力換気窓に関する。 The present invention relates to a frame that constitutes a frame frame that is arranged on the indoor side of an opening frame such as a window frame or a door frame, and a natural wind ventilation window in which the opening of a window shoji can be adjusted by natural wind force.

従来から、建物躯体の開口部には、採光や換気などを目的として、窓装置を設けることが行われている。また、窓装置を構成する窓枠の屋内側には、内壁との見切り材として、額縁枠を設けることが一般的に行われている。額縁枠は、窓枠を構成する枠材の屋内側にそれぞれ配置された複数の額縁から構成されている。
なお、額縁枠の下辺を構成する額縁は、額縁枠の上辺を構成する額縁などと区別して、膳板と呼ばれる場合もあるが、本明細書及び特許請求の範囲では、これらを区別せずに、すべて額縁と呼ぶ。 2. Description of the Related Art Conventionally, a window device has been provided in an opening of a building body for the purpose of lighting and ventilation. Further, a frame frame is generally provided on the indoor side of the window frame that constitutes the window device as a parting material with the inner wall. The frame frame is composed of a plurality of frames that are arranged on the indoor side of the frame material that constitutes the window frame.
Note that the frame forming the lower side of the frame frame may be referred to as a set board in order to distinguish it from the frame forming the upper side of the frame, but in the present specification and claims, these are not distinguished. , All called picture frames.

額縁は、窓枠を構成する上枠などの枠材に対して固定されている。枠材に対する額縁の取付構造としては、例えば特許文献１などに記載されているように、枠材の屋内側端部に設けられたヒレ状のアングルに対し、額縁の屋外側端部をねじ止め固定する構造が広く採用されている。 The frame is fixed to a frame material such as an upper frame that constitutes the window frame. As a structure for attaching a frame to a frame member, for example, as described in Patent Document 1 and the like, a frame-shaped angle provided on the indoor end of the frame member is screwed to the outdoor end of the frame. The fixing structure is widely adopted.

ただし、上述したような額縁の取付構造は、室内空間側からねじ止め作業を行う必要がある。このため、枠材の屋内側に十分な作業スペースを確保できれば問題ないが、例えば自然風力換気窓の場合のように、窓枠の内側に見込寸法の大きい障子を建て込んだ状態で額縁を固定しなければならない場合には、枠材の屋内側に十分な作業スペースを確保することが難しく、ねじ止め作業自体を行えなくなる可能性がある。なお、障子の見込寸法とは、障子の屋内外方向に関する寸法をいう。 However, it is necessary for the frame mounting structure as described above to perform the screwing work from the indoor space side. Therefore, there is no problem if a sufficient working space can be secured on the indoor side of the frame material, but as in the case of natural wind ventilation windows, for example, the frame is fixed in the state that a shoji with a large estimated size is built inside the window frame. If it is necessary, it is difficult to secure a sufficient working space on the indoor side of the frame material, and the screwing work itself may not be possible. The expected size of the shoji screen refers to the size of the shoji screen in the indoor and outdoor directions.

枠材に対する額縁の取付構造としては、上述したねじを利用する構造の他に、額縁の屋外側端部を枠材の屋内側端部に対して嵌合する構造も知られている。具体的には、枠材の屋内側端部に設けられた嵌合部に向けて、額縁の屋外側端部に設けられた嵌合部を押し込むことで、枠材に対して額縁を嵌合支持する。このような額縁の取付構造によれば、額縁の押し込み作業だけで、額縁の取付作業が完了するため、枠材の屋内側に十分な作業スペースを確保することが難しい場合にも、額縁の取付作業が行えなくなることを防止できる。 As a structure for attaching the frame to the frame member, in addition to the structure using the above-described screw, a structure in which the outdoor end of the frame is fitted to the indoor end of the frame member is also known. Specifically, the frame is fitted to the frame material by pushing the fitting part provided at the outdoor end of the frame toward the fitting part provided at the indoor end of the frame material. To support. According to such a frame mounting structure, since the frame mounting work is completed only by pushing the frame in, it is difficult to mount the frame even when it is difficult to secure a sufficient working space on the indoor side of the frame material. It is possible to prevent the work from being stopped.

ただし、額縁を枠材に嵌合支持する取付構造を採用した場合にも、窓枠の内側に見込寸法の大きい障子を建て込む場合には、障子の見込寸法に合わせて、額縁の見込寸法を大きくする必要がある。このため、額縁の嵌合部を枠材の嵌合部にスムーズに嵌合させることが難しくなり、額縁が屋外側への押し込み力によって断面弓形に変形するなどの問題を生じやすくなる。このように、額縁を枠材に対して嵌合支持する構造を採用した場合にも、額縁の見込寸法が大きくなると、額縁の取付作業の作業性が低下するといった問題を生じる。また、見込寸法の大きい額縁を使用する場合には、額縁を製造するための押出型も大型化するため、額縁の製造コストが嵩むといった問題も生じる。 However, even when adopting a mounting structure that fits and supports the frame to the frame material, if you build a shoji with a large estimated size inside the window frame, adjust the expected size of the frame according to the expected size of the shoji. Need to be bigger. Therefore, it becomes difficult to smoothly fit the fitting portion of the frame to the fitting portion of the frame member, and the problem that the frame is deformed into an arcuate cross section due to the pushing force to the outdoor side is likely to occur. As described above, even when the structure in which the frame is fitted and supported with respect to the frame member is adopted, if the expected size of the frame becomes large, there arises a problem that workability of the frame mounting work is deteriorated. In addition, when a frame with a large expected size is used, the extrusion die for manufacturing the frame also becomes large, which causes a problem of increasing the manufacturing cost of the frame.

実開昭５８−５５８２号公報Japanese Utility Model Publication No. 58-5582 特開２０１６−１０４９６３号公報JP, 2016-104963, A

本発明は、上述のような事情に鑑みて、窓枠などの開口枠に対する取付作業の作業性に優れるとともに、製造コストを抑えることができる、額縁の構造を実現すべく発明したものである。 In view of the above-mentioned circumstances, the present invention has been invented to realize a frame structure that is excellent in workability of attachment work to an opening frame such as a window frame and can reduce manufacturing cost.

本発明の額縁は、建物の開口部に配置される、窓枠やドア枠などの矩形枠状の開口枠の一辺を構成する枠材の屋内側に配置され、前記枠材に対して固定されるもので、屋外側に配置された屋外側額縁材と、屋内側に配置された屋内側額縁材と、を備えた２ピース構造である。
前記屋外側額縁材は、前記枠材の屋内側に隣接配置され、前記枠材に向けて屋外側に押し込むことで、前記枠材に対し直接又は他の部材を介して嵌合支持（押し込み嵌合、スナップ嵌合）されている。
前記屋内側額縁材は、前記屋外側額縁材の屋内側に隣接配置され、前記屋外側額縁材に向けて屋外側に押し込むことで、前記屋外側額縁材に対し直接又は他の部材を介して嵌合支持（押し込み嵌合、スナップ嵌合）されている。 The frame of the present invention is arranged on the indoor side of a frame material that is arranged in an opening of a building and constitutes one side of a rectangular frame-shaped opening frame such as a window frame or a door frame, and is fixed to the frame material. This is a two-piece structure including an outdoor-side frame material arranged on the outdoor side and an indoor-side frame material arranged on the indoor side.
The outdoor-side frame material is disposed adjacent to the indoor side of the frame material, and is pushed toward the outdoor side toward the frame material so as to be fitted and supported (push-fitting) directly or through another member to the frame material. Snap fit).
The indoor side frame material is arranged adjacent to the indoor side of the outdoor side frame material, and by pushing the outdoor side frame material toward the outdoor side, directly or through another member to the outdoor side frame material. Fitting support (push fit, snap fit).

本発明の額縁では、前記屋外側額縁材を、前記枠材の屋内側端部に結合された屋外側取付アタッチメントを介して、前記枠材に嵌合支持することができる。
なお、前記枠材に対する前記屋外側取付アタッチメントの結合構造としては、ねじ止め固定の他、接着固定、溶接固定、リベット固定、かしめ固定などを採用することができる。 In the frame of the present invention, the outdoor-side frame member can be fitted and supported on the frame member via the outdoor-side attachment attachment coupled to the indoor-side end portion of the frame member.
In addition, as the coupling structure of the outdoor side attachment to the frame member, other than screw fixing, adhesive fixing, welding fixing, rivet fixing, caulking fixing and the like can be adopted.

本発明の額縁では、前記屋内側額縁材を、前記屋外側額縁材の屋内側端部に結合された屋内側取付アタッチメントを介して、前記屋外側額縁材に嵌合支持することができる。
なお、前記屋外側額縁材に対する前記屋内側取付アタッチメントの結合構造としては、ねじ止め固定の他、接着固定、溶接固定、リベット固定、かしめ固定などを採用することができる。 In the frame of the present invention, the indoor-side frame material can be fitted and supported on the outdoor-side frame material via the indoor-side attachment attachment coupled to the indoor-side end portion of the outdoor-side frame material.
In addition, as the coupling structure of the indoor side attachment to the outdoor side frame member, other than screw fixing, adhesive fixing, welding fixing, rivet fixing, caulking fixing and the like can be adopted.

本発明の額縁では、前記屋外側額縁材に補強部材を支持し、前記補強部材を、前記建物の開口部に固定されたアンカー部材に対して溶接固定することができる。 In the frame of the present invention, a reinforcing member can be supported on the outdoor-side frame material, and the reinforcing member can be welded and fixed to the anchor member fixed to the opening of the building.

本発明の額縁では、前記枠材を、前記開口枠である窓枠の上辺を構成する上枠とすることができる。
あるいは、本発明の額縁では、前記枠材を、前記開口枠である窓枠の下辺を構成する下枠、又は、前記開口枠である窓枠の縦辺を構成する竪枠とすることもできる。 In the frame of the present invention, the frame member may be an upper frame that constitutes an upper side of the window frame that is the opening frame.
Alternatively, in the frame of the present invention, the frame material may be a lower frame that configures a lower side of the window frame that is the opening frame, or a vertical frame that configures a vertical side of the window frame that is the opening frame. ..

本発明の自然風力換気窓は、建物の開口部に配置される矩形枠状の窓枠と、該窓枠の内側に自然風力によって開度を調整自在に支持された窓障子と、前記窓枠の屋内側に固定された額縁枠とを備えている。
前記窓枠は、上辺を構成する上枠と、下辺を構成する下枠と、縦辺を構成する１対の竪枠と、を有している。
前記窓障子は、上辺を構成する上框と、下辺を構成する下框と、縦辺を構成する１対の竪框と、前記上框の屋内側に固定されたバランスウェイトと、を有している。
前記額縁枠は、少なくとも、前記上枠の屋内側に固定され、前記バランスウェイトの上方に配置された上額縁と、前記１対の竪枠の屋内側にそれぞれ固定された１対の竪額縁と、を有している。
そして、本発明の自然風力換気窓では、前記上額縁を、本発明の額縁としている。 The natural wind ventilation window of the present invention is a rectangular frame-shaped window frame arranged in an opening of a building, a window shovel supported inside the window frame so that its opening can be freely adjusted by natural wind, and the window frame. And a frame frame fixed to the indoor side of the.
The window frame has an upper frame forming an upper side, a lower frame forming a lower side, and a pair of vertical frames forming a vertical side.
The window shoji has an upper frame forming an upper side, a lower frame forming a lower side, a pair of vertical frames forming a vertical side, and a balance weight fixed to an indoor side of the upper frame. ing.
The frame frame is fixed to at least the indoor side of the upper frame, and an upper frame arranged above the balance weight, and a pair of vertical frame fixed to the indoor side of the pair of vertical frames, respectively. ,have.
And in the natural wind ventilation window of this invention, the said upper frame is made into the frame of this invention.

本発明によれば、窓枠などの開口枠に対する取付作業の作業性に優れるとともに、製造コストを抑えることができる、額縁の構造を実現することができる。 According to the present invention, it is possible to realize a frame structure that is excellent in workability of attaching work to an opening frame such as a window frame and can reduce manufacturing cost.

図１は、実施の形態の第１例に係る自然風力換気窓を屋内側から見た模式図である。FIG. 1 is a schematic view of the natural wind ventilation window according to the first example of the embodiment as viewed from the indoor side. 図２は、図１のＡ−Ａ断面に相当する縦断面図である。FIG. 2 is a vertical cross-sectional view corresponding to the AA cross section of FIG. 1. 図３は、図２の上部拡大図である。FIG. 3 is an enlarged view of the upper part of FIG. 図４は、図１のＢ−Ｂ断面に相当する横断面図である。FIG. 4 is a transverse cross-sectional view corresponding to the BB cross section of FIG. 1. 図５は、上枠に対する上額縁の取付構造を示す断面図である。FIG. 5 is a cross-sectional view showing the mounting structure of the upper frame with respect to the upper frame. 図６は、上枠と屋外側取付アタッチメントを取り出して示す断面図である。FIG. 6 is a cross-sectional view showing the upper frame and the outdoor-side attachment attachment taken out. 図７は、上額縁を取り出して示す断面図である。FIG. 7 is a cross-sectional view showing the upper frame taken out. 図８は、補助部材を取り出して示す図であり、（Ａ）は正面図であり、（Ｂ）は右側面図である。FIG. 8 is a view showing the auxiliary member taken out, (A) is a front view, and (B) is a right side view.

［実施の形態の第１例］
実施の形態の第１例について、図１〜図８を用いて説明する。
本例は、本発明を窓装置である自然風力換気窓に適用した場合を示している。本例の自然風力換気窓１は、建物躯体２の開口部３に配置された矩形枠状の開口枠である窓枠４と、該窓枠４の内側に自然風力によって開度を調整自在に支持されたガラス障子５と、窓枠４の屋内側に固定された矩形枠状の額縁枠６とを備えている。
なお、本明細書中で、面内方向とは、水平方向の１つである、窓枠４の幅方向（図１の左右方向）をいう。また、面内方向に関して内側とは、窓枠４の幅方向中央側をいう。 [First Example of Embodiment]
A first example of the embodiment will be described with reference to FIGS.
This example shows a case where the present invention is applied to a natural wind ventilation window which is a window device. The natural wind ventilation window 1 of this example has a window frame 4 which is a rectangular frame-shaped opening frame arranged in the opening 3 of the building frame 2, and the opening degree of which can be freely adjusted by natural wind force inside the window frame 4. It is provided with a supported glass shoji 5 and a rectangular frame-shaped frame frame 6 fixed to the indoor side of the window frame 4.
In the present specification, the in-plane direction means one of the horizontal directions, that is, the width direction of the window frame 4 (the left-right direction in FIG. 1 ). The inner side in the in-plane direction refers to the widthwise center side of the window frame 4.

［窓枠４の構造］
窓枠４は、面内方向に配置されて上辺を構成する上枠７と、同じく面内方向に配置されて下辺を構成する下枠８と、鉛直方向に配置されて左右の縦辺を構成する１対の竪枠９とを備えている。そして、上枠７及び下枠８の面内方向両端部と１対の竪枠９の上下方向両端部とを、それぞれタッピングねじなどを用いて連結することで、窓枠４を矩形枠状に構成している。窓枠４を構成する各枠７〜９はいずれも、アルミニウム合金の一体押し出し成形材である。なお、窓枠４を構成する各枠７〜９のうち、左右の縦辺を構成する１対の竪枠９は、屋外側に配置された屋外側竪枠９ａと屋内側に配置された屋内側竪枠９ｂとから構成されている。また、窓枠４を構成する各枠７〜９は、建物躯体２の開口部３に固定された差筋や鉄筋からなるアンカー部材１０に対してそれぞれ溶接固定されている。なお、建物躯体２の開口部３と各枠７〜９との間には、モルタル１１が詰められている。 [Structure of window frame 4]
The window frame 4 is arranged in the in-plane direction to form an upper side, an upper frame 7 is also arranged in the in-plane direction to form a lower side, and a lower frame 8 is arranged in the vertical direction to form left and right vertical sides. And a pair of vertical frames 9 for Then, the both ends of the upper frame 7 and the lower frame 8 in the in-plane direction and the upper and lower ends of the pair of vertical frames 9 are connected to each other by using tapping screws or the like, so that the window frame 4 is formed into a rectangular frame shape. I am configuring. Each of the frames 7 to 9 constituting the window frame 4 is an integrally extruded material of aluminum alloy. In addition, among the frames 7 to 9 that form the window frame 4, the pair of vertical frames 9 that form the left and right vertical sides are the outdoor vertical frame 9a that is arranged on the outdoor side and the shop that is arranged on the indoor side. It is composed of an inner vertical frame 9b. Further, each of the frames 7 to 9 that form the window frame 4 is welded and fixed to the anchor member 10 that is fixed to the opening 3 of the building frame 2 and is made of a reinforcing bar or a reinforcing bar. A mortar 11 is filled between the opening 3 of the building frame 2 and each of the frames 7-9.

［ガラス障子５の構造］
窓枠４の内側に建て込まれるガラス障子５は、矩形枠状の框枠体１２の内側に、ガラスパネル１３を嵌め込むことにより構成されている。框枠体１２は、上辺を構成する上框１４と、下辺を構成する下框１５と、左右の縦辺を構成する１対の竪框１６との、それぞれの端部を連結することにより、矩形枠状に構成されている。 [Structure of glass shoji 5]
The glass shoji 5 built inside the window frame 4 is configured by fitting a glass panel 13 inside a frame frame body 12 having a rectangular frame shape. The frame frame 12 connects the respective end portions of an upper frame 14 forming the upper side, a lower frame 15 forming the lower side, and a pair of vertical frames 16 forming the left and right vertical sides, It has a rectangular frame shape.

ガラスパネル１３は、図２に示すような複層ガラスであり、スペーサ１７を介して所定の間隔を隔てて互いに平行に配置された２枚のガラス板１８ａ、１８ｂと、ガラス板１８ａ、１８ｂ同士の間の空間である中間層１９と、該中間層１９の周縁部（スペーサ１７の周囲）を密封する封着材２０とを備えている。 The glass panel 13 is a multi-layer glass as shown in FIG. 2, and includes two glass plates 18 a and 18 b arranged in parallel with each other with a spacer 17 interposed therebetween and the glass plates 18 a and 18 b. The intermediate layer 19 that is a space between the intermediate layer 19 and the sealing material 20 that seals the peripheral edge portion (around the spacer 17) of the intermediate layer 19 is provided.

ガラスパネル１３の上辺（上縁部）、下辺（下縁部）、及び、側辺（側縁部）は、框枠体１２を構成する上框１４、下框１５、及び、左右の竪框１６にそれぞれ設けられたガラス溝２１ａ〜２１ｃの内側にそれぞれ挿入されている。また、ガラスパネル１３の下辺は、セッティングブロック２２を介して、下框１５に設けられたガラス溝２１ｂの底部に突き当てられている。また、ガラスパネル１３の外周縁寄り部分の両側面と、ガラス溝２１ａ〜２１ｃの開口部との間部分を、屋外側シール材２３ａと屋内側シール材２３ｂとで、それぞれ全周にわたりシールしている。 The upper side (upper edge), the lower side (lower edge), and the side (side edge) of the glass panel 13 are an upper frame 14, a lower frame 15, and left and right vertical frames that form the frame frame 12. 16 are respectively inserted in the glass grooves 21a-21c. Further, the lower side of the glass panel 13 is abutted against the bottom portion of the glass groove 21b provided in the lower frame 15 via the setting block 22. Moreover, both the side surfaces of the outer peripheral edge portion of the glass panel 13 and the portions between the openings of the glass grooves 21a to 21c are sealed with the outdoor sealing material 23a and the indoor sealing material 23b over the entire circumference. There is.

［ガラス障子５の支持構造及び開閉構造］
ガラス障子５は、窓枠４に対して、図示しない１対の軸受装置により、回転可能に支持されている。１対の軸受装置は、面内方向に離隔して配置されており、ガラス障子５の上下方向中央部よりも上側に位置している。また、１対の軸受装置は、窓枠４を構成する竪枠９とガラス障子５を構成する竪框１６との間に配置されている。それぞれの軸受装置は、竪框１６に支持され、面内方向に配置された図示しない軸部と、竪枠９（屋外側竪枠９ａ）に支持され、該軸部を回転可能に支持する図示しない軸受とから構成されている。このため、本例の自然風力換気窓１は、前記軸部の中心軸線Ｘ回りに回転する、横軸回転窓となっている。 [Glass Shoji 5 support structure and opening/closing structure]
The glass screen 5 is rotatably supported on the window frame 4 by a pair of bearing devices (not shown). The pair of bearing devices are arranged so as to be separated in the in-plane direction, and are located above the vertically central portion of the glass shoji 5. In addition, the pair of bearing devices is arranged between the vertical frame 9 forming the window frame 4 and the vertical frame 16 forming the glass screen 5. Each bearing device is supported by a vertical frame 16 and is supported by a shaft portion (not shown) arranged in the in-plane direction and a vertical frame 9 (outdoor vertical frame 9a) to rotatably support the shaft portion. It is made up of bearings and not. Therefore, the natural wind ventilation window 1 of this example is a horizontal axis rotating window that rotates around the central axis X of the shaft portion.

ガラス障子５を構成する上框１４の屋内側には、バランスウェイト２４が固定されている。バランスウェイト２４は、前記中心軸線Ｘよりも上方に位置しており、上框１４に対して屋内側に大きく張り出すように取り付けられている。バランスウェイト２４は、上框１４の屋内側に固定された断面略コ字状のケース２５と、該ケース２５の内側に配置された図示しないおもり本体とを備えている。 A balance weight 24 is fixed to the indoor side of the upper frame 14 that constitutes the glass screen 5. The balance weight 24 is located above the central axis line X, and is attached to the upper frame 14 so as to largely extend to the indoor side. The balance weight 24 includes a case 25 having a substantially U-shaped cross section fixed to the indoor side of the upper frame 14, and a weight main body (not shown) disposed inside the case 25.

本例のガラス障子５は、上述のようなバランスウェイト２４を備えているため、重心の位置がガラスパネル１３よりも屋内側に位置している。このため、ガラス障子５は、無風の状態で、上框１４が屋内側に移動し、下框１５が屋外側に移動するように、鉛直方向に対し所定角度（例えば２０〜４５度程度、好ましくは３０度）だけ傾いた状態で釣り合う。このため、室内で暖められた空気を重力換気により外部に排出することができる。 Since the glass screen 5 of this example includes the balance weight 24 as described above, the position of the center of gravity is located closer to the indoor side than the glass panel 13. Therefore, the glass screen 5 has a predetermined angle (for example, about 20 to 45 degrees, preferably about 20 to 45 degrees, with respect to the vertical direction) so that the upper frame 14 moves to the indoor side and the lower frame 15 moves to the outdoor side in a windless state. Balance by tilting only 30 degrees). Therefore, the air warmed indoors can be discharged to the outside by gravity ventilation.

また、ガラス障子５の表面積は、前記中心軸線Ｘを挟んで上側部分よりも下側部分の方が大きいため、ガラス障子５に向けて風が吹き付けた場合に、ガラス障子５は、前記中心軸線Ｘよりも上側部分に比べて前記中心軸線Ｘよりも下側部分の方が、より多くの風を受けることになる。 Further, since the surface area of the glass screen 5 is larger in the lower part than in the upper part with the central axis line X interposed therebetween, when wind blows toward the glass screen screen 5, the glass screen screen 5 is The lower part of the central axis X receives more wind than the upper part of X.

このため、風が建物の室内から外部に向けて吹く、いわゆる負圧の風の場合には、ガラス障子５は開いたままの状態を維持し、風の強さ（風力の大きさ）により開度を変化させる。つまり、風の強さが強まれば開度を大きくし、風の強さが弱まれば開度を小さくする。 Therefore, when the wind blows from the interior of the building to the outside, that is, in the case of so-called negative pressure wind, the glass screen 5 remains open and opens depending on the strength of the wind (size of the wind). Change the degree. That is, if the wind strength increases, the opening is increased, and if the wind strength decreases, the opening is decreased.

これに対し、風が建物の外部から室内に向けて吹く、いわゆる正圧の風の場合には、ガラス障子５は閉じるように傾き、風の強さ（風力の大きさ）により開度を変化させる。つまり、風の強さが強まれば開度を小さくし、風の強さが弱まれば開度を大きくする。 On the other hand, when the wind blows from the outside of the building toward the room, that is, in the case of so-called positive pressure, the glass screen 5 inclines so as to close, and the opening degree changes depending on the strength of the wind (size of the wind force). Let That is, if the wind strength increases, the opening is decreased, and if the wind strength decreases, the opening is increased.

本例の自然風力換気窓１は、上述したような自然風力によってガラス障子５の開度を調整自在とするモードと、火災時などにガラス障子５を強制的に開放するモードと、風の強さにかかわらず、ガラス障子５を強制的に閉鎖するモードとを切り替え可能である。モードの切り替えは、竪框１６の屋内側端部に取り付けられた揺動ピン２６や、屋内側竪枠９ｂに取り付けられたカバー９ｃの内側に配置された、揺動ピン２６を揺動させるための押し引き部材２７、図示しないワイヤーや滑車などを利用して、電動又は手動で、ガラス障子５の姿勢（傾斜状態）を切り替えることにより実現する。なお、自然風力換気窓１の各種モード及びモードを切り替えるための具体的な構造については、例えば特許文献２などに詳しく記載されており、本発明の要旨ではないため、ここでの詳しい説明は省略する。 The natural wind ventilation window 1 of this example has a mode in which the opening degree of the glass screen 5 can be freely adjusted by the natural wind force as described above, a mode in which the glass screen 5 is forcibly opened in the event of a fire, and a wind strength. Regardless of this, it is possible to switch to a mode in which the glass screen 5 is forcibly closed. The mode switching is performed in order to swing the swing pin 26 attached to the indoor end of the vertical frame 16 or the swing pin 26 arranged inside the cover 9c attached to the indoor vertical frame 9b. This is achieved by electrically or manually switching the posture (inclined state) of the glass shoji 5 using the push/pull member 27, a wire, a pulley, or the like not shown. It should be noted that various modes of the natural wind ventilation window 1 and a specific structure for switching the modes are described in detail in, for example, Patent Document 2 and the like, and are not the gist of the present invention, and thus detailed description thereof is omitted here. To do.

ガラス障子５を構成する下框１５と窓枠４を構成する下枠８との間には、施錠装置２８が設けられている。施錠装置２８は、下框１５に対して取り付けられた係合ピン２９と、下枠８の屋内側に配置され、該下枠８に対して複数の部材を介して回動可能に支持された係合片３０とにより構成されている。係合片３０の回動角度は、図示しない連動部材により、ガラス障子５の傾斜角度に応じて変更自在である。そして、図２に示したガラス障子５の閉鎖状態で、係合ピン２９と係合片３０とを係合させて、ガラス障子５を閉鎖位置に保持する。なお、このような施錠装置２８の具体的な構造についても、特許文献２などに詳しく記載されており、本発明の要旨ではないため、ここでの詳しい説明は省略する。 A locking device 28 is provided between the lower frame 15 forming the glass screen 5 and the lower frame 8 forming the window frame 4. The locking device 28 is disposed on the inside of the lower frame 8 and the engagement pin 29 attached to the lower frame 15, and is rotatably supported by the lower frame 8 via a plurality of members. It is constituted by the engagement piece 30. The rotation angle of the engagement piece 30 can be freely changed according to the inclination angle of the glass screen 5 by an interlocking member (not shown). Then, in the closed state of the glass screen 5 shown in FIG. 2, the engagement pin 29 and the engagement piece 30 are engaged with each other to hold the glass screen 5 in the closed position. Note that the specific structure of such a locking device 28 is also described in detail in Patent Document 2 and the like, and is not the gist of the present invention, so a detailed description thereof will be omitted here.

上述したような自然風力換気窓１は、配線作業が煩雑になるなどの理由から、窓枠４の内側にガラス障子５を建て込んだ状態で施工現場へと搬送され、建物躯体２の開口部３に取り付けられる。具体的には、矩形枠状に組み立てられた窓枠４の内側にガラス障子５を配置した状態で、窓枠４を構成する各枠７〜９を、建物躯体２の開口部３に予め固定されたアンカー部材１０に対してそれぞれ溶接固定する。窓枠４の屋内側に配置される額縁枠６は、窓枠４及びガラス障子５を、建物躯体２の開口部３に取り付けた状態で、窓枠４に対して固定される。 The natural wind ventilation window 1 as described above is transported to the construction site with the glass screen 5 installed inside the window frame 4 and the opening portion of the building frame 2 because the wiring work becomes complicated. It is attached to 3. Specifically, in a state in which the glass shoji 5 is arranged inside the window frame 4 assembled in a rectangular frame shape, the frames 7 to 9 constituting the window frame 4 are fixed to the opening 3 of the building frame 2 in advance. Each of the anchor members 10 is fixed by welding. The frame frame 6 arranged on the indoor side of the window frame 4 is fixed to the window frame 4 in a state where the window frame 4 and the glass screen 5 are attached to the opening 3 of the building frame 2.

［額縁枠６の構造］
額縁枠６は、窓枠４の屋内側に配置され、内壁３１との間の見切り材として機能する。額縁枠６は、矩形枠状に構成されており、面内方向に配置されて上辺を構成する上額縁３２と、同じく面内方向に配置されて下辺を構成する下額縁３３と、鉛直方向に配置されて左右の縦辺を構成する１対の竪額縁３４とを備えている。このうちの上額縁３２は、上枠７の屋内側に配置されており、下額縁３３は、下枠８の屋内側に配置されている。１対の竪額縁３４は、１対の竪枠９の屋内側にそれぞれ配置されている。また、上額縁３２は、１対の竪額縁３４の上端部同士の間に配置されており、下額縁３３は、１対の竪額縁３４の下端部同士の間に配置されている。額縁枠６を構成する各額縁３２〜３４はいずれも、アルミニウム合金の一体押し出し成形材である。本例では、このような額縁枠６を構成する各額縁３２〜３４のうち、バランスウェイト２４の上方に配置されることに起因して取付作業スペースの制約を受ける、上額縁３２に対してのみ本発明を適用している。このため、上額縁３２に関しては詳しい説明を行うが、下額縁３３及び竪額縁３４に関しては簡単に説明を行う。 [Structure of frame frame 6]
The frame frame 6 is arranged on the indoor side of the window frame 4 and functions as a parting member between the frame frame 6 and the inner wall 31. The frame frame 6 is configured in a rectangular frame shape, and includes an upper frame 32 that is arranged in the in-plane direction to form the upper side, a lower frame 33 that is also arranged in the in-plane direction to form the lower side, and in the vertical direction. It is provided with a pair of vertical frames 34 that are arranged to form left and right vertical sides. The upper frame 32 is arranged on the indoor side of the upper frame 7, and the lower frame 33 is arranged on the indoor side of the lower frame 8. The pair of vertical frames 34 are arranged on the indoor side of the pair of vertical frames 9, respectively. The upper frame 32 is arranged between the upper ends of the pair of vertical frames 34, and the lower frame 33 is arranged between the lower ends of the pair of vertical frames 34. Each of the frames 32 to 34 constituting the frame frame 6 is an integrally extruded material of aluminum alloy. In the present example, among the frames 32 to 34 that configure the frame frame 6 as described above, only the upper frame 32 that is restricted in the mounting work space due to being arranged above the balance weight 24. The present invention is applied. Therefore, the upper frame 32 will be described in detail, but the lower frame 33 and the vertical frame 34 will be briefly described.

［上額縁３２の全体構造］
上額縁３２は、上枠７の屋内側に固定されており、上框１４に対して固定されたバランスウェイト２４の上方に配置されている。特に本例の上額縁３２は、屋外側に配置された屋外側額縁材３５と、屋内側に配置された屋内側額縁材３６とを備えた、２ピース構造になっている。このような上額縁３２の屋内側端部（第２屋内側立板５５）は、バランスウェイト２４の屋内側端部と、屋内外方向位置が一致している。つまり、本例の上額縁３２の見込寸法は、ガラス障子５の屋内側にバランスウェイト２４を設けたことに起因して、一般的な窓装置に組み込まれる上額縁と比較して大きくなっている。具体的には、上額縁３２の見込寸法は、８０ｍｍ〜２００ｍｍ程度であり、図示の例では１２０ｍｍである。 [Overall structure of the upper frame 32]
The upper frame 32 is fixed to the indoor side of the upper frame 7, and is arranged above the balance weight 24 fixed to the upper frame 14. In particular, the upper frame 32 in this example has a two-piece structure including an outdoor frame member 35 arranged on the outdoor side and an indoor frame member 36 arranged on the indoor side. The indoor side end portion (second indoor side standing plate 55) of the upper frame 32 as described above is aligned with the indoor side end portion of the balance weight 24 in the indoor/outdoor direction. That is, the expected size of the upper frame 32 in this example is larger than that of the upper frame incorporated in a general window device due to the provision of the balance weight 24 on the indoor side of the glass screen 5. .. Specifically, the expected size of the upper frame 32 is about 80 mm to 200 mm, and is 120 mm in the illustrated example.

屋外側額縁材３５は、上枠７の屋内側に隣接配置されており、上枠７に対して、屋外側取付アタッチメント３７を介して嵌合支持されている。具体的には、屋外側額縁材３５を、上枠７に向けて屋外側に押し込むことで、屋外側額縁材３５の屋外側部に設けられた第１嵌合部３８を、上枠７の屋内側端部にねじ止め固定された屋外側取付アタッチメント３７に嵌合させて、屋外側額縁材３５を上枠７に対して嵌合支持（押し込み嵌合、スナップ嵌合）している。 The outdoor frame member 35 is disposed adjacent to the indoor side of the upper frame 7, and is fitted and supported on the upper frame 7 via an outdoor side attachment attachment 37. Specifically, by pushing the outdoor side frame material 35 toward the outdoor side toward the upper frame 7, the first fitting portion 38 provided on the outdoor side portion of the outdoor side frame material 35 is moved to the upper frame 7. The outdoor side frame attachment 35 is fitted and supported (push-fitting and snap-fitting) with respect to the upper frame 7 by fitting it to the outdoor side attachment attachment 37 that is screwed and fixed to the indoor side end portion.

これに対し、屋内側額縁材３６は、屋外側額縁材３５の屋内側に隣接配置されており、屋外側額縁材３５に対して、屋内側取付アタッチメント３９を介して嵌合支持されている。具体的には、屋内側額縁材３６を、屋外側額縁材３５に向けて屋外側に押し込むことで、屋内側額縁材３６の屋外側部に設けられた第２嵌合部４０を、屋外側額縁材３５の屋内側端部にねじ止め固定された屋内側取付アタッチメント３９に嵌合させて、屋内側額縁材３６を屋外側額縁材３５に対して嵌合支持（押し込み嵌合、スナップ嵌合）している。
なお、本例では、屋外側取付アタッチメント３７と屋内側取付アタッチメント３９とで、互いに同じ部材（共通部品）を使用している。このため、構造に関する説明は、屋外側取付アタッチメント３７のみを対象に行う。 On the other hand, the indoor-side frame member 36 is disposed adjacent to the indoor-side frame member 35 on the indoor side, and is fitted and supported on the outdoor-side frame member 35 via the indoor-side attachment attachment 39. Specifically, by pushing the indoor side frame member 36 toward the outdoor side frame member 35 toward the outdoor side, the second fitting portion 40 provided on the outdoor side portion of the indoor side frame member 36 is moved to the outdoor side. The indoor side frame attachment 36 is fitted and supported (press fit, snap fit) with respect to the outdoor side frame frame 35 by fitting the indoor side frame attachment 36 to the indoor side attachment attachment 39 which is screwed and fixed to the indoor side end of the frame frame 35. )is doing.
In this example, the outdoor side attachment attachment 37 and the indoor side attachment attachment 39 use the same members (common parts). Therefore, the description of the structure will be given only to the outdoor side attachment attachment 37.

［屋外側額縁材３５の構造］
屋外側額縁材３５は、図５及び図７に示すように、バランスウェイト２４の屋外側の上面と対向した平板状の第１表面板４１と、第１表面板４１の屋内側端部から上側に向けて直角に折れ曲がった第１屋内側立板４２とを備える。第１表面板４１の上面には、屋内外方向に離隔して３本の第１下側突条４３ａ、４３ｂ、４３ｃが設けられている。最も屋外側に配置された第１下側突条４３ａは、第１表面板４１の屋外側端部に設けられている。屋内外方向に関して中間に位置する第１下側突条４３ｂは、第１表面板４１の屋外寄り部分に設けられている。最も屋内側に配置された第１下側突条４３ｃは、第１表面板４１の屋内外方向中間部に設けられている。第１下側突条４３ａ〜４３ｃの上方への突出量は、第１下側突条４３ａ、第１下側突条４３ｂ、第１下側突条４３ｃの順に、屋内側に向かうほど大きくなっている。 [Structure of the outdoor frame member 35]
As shown in FIGS. 5 and 7, the outdoor-side frame member 35 includes a flat plate-shaped first surface plate 41 facing the outdoor-side upper surface of the balance weight 24, and an upper side from an indoor-side end portion of the first surface plate 41. And a first indoor side standing plate 42 that is bent at a right angle toward. Three first lower ridges 43a, 43b, 43c are provided on the upper surface of the first surface plate 41 so as to be spaced apart from each other in the indoor and outdoor directions. The first lower protrusion 43a arranged on the most outdoor side is provided at the outdoor end of the first surface plate 41. The first lower ridge 43b located in the middle with respect to the indoor/outdoor direction is provided on a portion of the first surface plate 41 near the outdoor side. The first lower ridge 43c arranged closest to the indoor side is provided at the intermediate portion of the first surface plate 41 in the indoor/outdoor direction. The amount of upward protrusion of the first lower protrusions 43a to 43c increases in the order of the first lower protrusion 43a, the first lower protrusion 43b, and the first lower protrusion 43c toward the indoor side. ing.

第１表面板４１の上面の屋外寄り部分で、第１下側突条４３ｂ、４３ｃ同士の間には、第１屋内側立板４２と略平行に配置された第１中間立板４４が設けられている。第１中間立板４４の上端部は、屋外側に向けて略直角に折れ曲がっており、その先端部（屋外側端部）に下方に向けて直角に折れ曲がった第１上側突条４６ａが設けられている。第１上側突条４６ａと第１下側突条４３ｂとは、屋内外方向位置が互いに一致しており、第１上側突条４６ａの先端部と第１下側突条４３ｂの先端部とは互いに対向している。一方、第１屋内側立板４２の上端部には、屋外側に向けて伸長し、第１表面板４１と略平行に配置された第１裏面板４５が設けられている。第１裏面板４５の屋外側端部には、下方に向けて直角に折れ曲がった第１上側突条４６ｂが設けられている。第１上側突条４６ｂと第１下側突条４３ｃとは、屋内外方向位置が互いに一致しており、第１上側突条４６ｂの先端部と第１下側突条４３ｃの先端部とは互いに対向している。また、第１上側突条４６ｂの下方への突出量は、第１上側突条４６ａの下方への突出量よりも大きくなっている。
以上のような屋外側額縁材３５は、第１中間立板４４よりも屋外側部分によって、第１嵌合部３８を構成している。 A first intermediate standing plate 44 arranged substantially parallel to the first indoor standing plate 42 is provided between the first lower protrusions 43b and 43c at a portion of the upper surface of the first surface plate 41 near the outdoor. Has been. The upper end of the first intermediate standing plate 44 is bent at a substantially right angle toward the outdoor side, and a first upper protrusion 46a bent downward at a right angle is provided at its tip (outdoor side end). ing. The first upper protrusions 46a and the first lower protrusions 43b have indoor and outdoor positions that match each other, and the tip of the first upper protrusions 46a and the tip of the first lower protrusions 43b are different from each other. They are facing each other. On the other hand, at the upper end of the first indoor-side standing plate 42, a first back plate 45 that extends toward the outdoor side and is disposed substantially parallel to the first front plate 41 is provided. A first upper protrusion 46b bent downward at a right angle is provided at an outdoor end of the first back plate 45. The positions of the first upper protrusion 46b and the first lower protrusion 43c are aligned indoors and outdoors, and the tip of the first upper protrusion 46b and the tip of the first lower protrusion 43c are different from each other. They are facing each other. Further, the downward protrusion amount of the first upper protrusion 46b is larger than the downward protrusion amount of the first upper protrusion 46a.
The outdoor-side frame member 35 as described above constitutes the first fitting portion 38 by the portion on the outdoor side of the first intermediate standing plate 44.

［屋外側取付アタッチメント３７（屋内側取付アタッチメント３９）の構造］
屋外側取付アタッチメント３７は、図５及び図６に示すように、断面略コ字形状を有する長尺部材であり、アルミニウム合金の一体押し出し成形材である。屋外側取付アタッチメント３７は、取付ねじ４７により、上枠７の屋内側側面に固定されており、鉛直方向に配置された取付基板部４８と、該取付基板部４８の上下方向両端部から屋内側に向けて伸長した１対の張出板部４９ａ、４９ｂとを備えている。１対の張出板部４９ａ、４９ｂは、互いに近づく方向（上下方向）に弾性変形可能であり、それぞれの中間部に段部５０ａ、５０ｂを有している。 [Structure of Outdoor Side Attachment Attachment 37 (Indoor Side Attachment Attachment 39)]
As shown in FIGS. 5 and 6, the outdoor-side attachment attachment 37 is a long member having a substantially U-shaped cross section, and is an integrally extruded material of aluminum alloy. The outdoor side attachment attachment 37 is fixed to the indoor side surface of the upper frame 7 by a mounting screw 47, and the installation board portion 48 arranged in the vertical direction and the indoor side from the both ends in the vertical direction of the installation board portion 48. And a pair of overhanging plate portions 49a and 49b extending toward The pair of projecting plate portions 49a and 49b are elastically deformable in a direction approaching each other (vertical direction), and have step portions 50a and 50b at respective intermediate portions.

屋外側取付アタッチメント３７は、取付基板部４８を屋内側から屋外側へと挿通した取付ねじ４７を、上枠７の屋内側端部に対して螺合しさらに締め付けることにより、上枠７に固定されている。なお、屋外側取付アタッチメント３７は、上枠７を建物躯体２の開口部３に固定されたアンカー部材１０に対して溶接固定する以前に、上枠７に対して予め固定しておく。また、本例では、屋外側取付アタッチメント３７を、上枠７と別体として、上枠７に対して固定する構造を採用しているが、屋外側取付アタッチメントを、上枠と一体に設けることもできる。この場合には、上枠の屋内側側面から屋内側に伸長するように、１対の張出板部を設けることができる。そして、このような上枠に対して屋外側額縁材３５を直接嵌合支持する。 The outdoor side attachment attachment 37 is fixed to the upper frame 7 by screwing a mounting screw 47, which is obtained by inserting the mounting substrate portion 48 from the indoor side to the outdoor side, to the indoor side end portion of the upper frame 7 and further tightening the same. Has been done. The outdoor-side attachment attachment 37 is fixed to the upper frame 7 in advance before the upper frame 7 is fixed to the anchor member 10 fixed to the opening 3 of the building body 2 by welding. In addition, in this example, the outdoor side attachment 37 is provided separately from the upper frame 7 and fixed to the upper frame 7. However, the outdoor side attachment 37 should be provided integrally with the upper frame. You can also In this case, a pair of projecting plate portions can be provided so as to extend from the indoor side surface of the upper frame to the indoor side. Then, the outdoor frame member 35 is directly fitted and supported on such an upper frame.

［屋外側額縁材３５と屋外側取付アタッチメント３７との嵌合構造］
図５に示すように、屋外側取付アタッチメント３７に対し屋外側額縁材３５を嵌合した状態で、屋外側額縁材３５の第１下側突条４３ａを、屋外側取付アタッチメント３７の取付基板部４８の下端部に係合させている。また、上下方向に対向した第１下側突条４３ｂ及び第１上側突条４６ａのそれぞれの先端部を、張出板部４９ａ、４９ｂの段部５０ａ、５０ｂに対して、弾性的に係合（嵌合）させている。このように、屋外側取付アタッチメント３７に対して屋外側額縁材３５を嵌合する作業は、屋外側額縁材３５を屋外側取付アタッチメント３７に向けて屋外側へ押し込むことにより行う。すなわち、第１下側突条４３ｂ及び第１上側突条４６ａの先端部により、１対の張出板部４９ａ、４９ｂを弾性変形させながら、第１下側突条４３ｂ及び第１上側突条４６ａの先端部を、段部５０ａ、５０ｂに係合（嵌合）させる。このように本例では、屋外側額縁材３５を屋外側取付アタッチメント３７に対し押し込み嵌合（スナップ嵌合、スナップイン）させることができるため、屋外側額縁材３５の取付作業スペースが、建物躯体２の開口部３の上辺とバランスウェイト２４との間に挟まれた狭い空間であるにもかかわらず、屋外側額縁材３５の取付作業を容易に行うことができる。 [Fitting Structure of Outdoor Frame Material 35 and Outdoor Attachment Attachment 37]
As shown in FIG. 5, with the outdoor side frame material 35 fitted to the outdoor side attachment 37, the first lower ridge 43 a of the outdoor side frame material 35 is attached to the outdoor side attachment attachment 37. It is engaged with the lower end of 48. Further, the tip ends of the first lower protrusion 43b and the first upper protrusion 46a facing each other in the vertical direction are elastically engaged with the step portions 50a, 50b of the overhang plate portions 49a, 49b. (Mated) Thus, the work of fitting the outdoor frame member 35 to the outdoor side attachment 37 is performed by pushing the outdoor frame member 35 toward the outdoor side attachment attachment 37 toward the outdoor side. That is, the first lower protrusion 43b and the first upper protrusion 43b are elastically deformed by the tips of the first lower protrusion 43b and the first upper protrusion 46a, while the first lower protrusion 43b and the first upper protrusion 43b are elastically deformed. The tip end portion of 46a is engaged (fitted) with the step portions 50a and 50b. As described above, in this example, the outdoor frame member 35 can be pushed and fitted (snap fit, snap-in) to the outdoor attachment attachment 37, so that the installation work space of the outdoor frame member 35 is the building frame. Despite the narrow space sandwiched between the upper side of the second opening 3 and the balance weight 24, the work of attaching the outdoor-side frame member 35 can be easily performed.

［補強構造］
本例の自然風力換気窓１は、上述したように上額縁３２の見込寸法が大きいため、屋外側額縁材３５の固定強度を十分に高めるべく、屋外側額縁材３５に対して補強部材５１を支持し、該補強部材５１を、建物躯体２の開口部３の上辺に固定されたアンカー部材１０に対して溶接固定している。 [Reinforcement structure]
In the natural wind ventilation window 1 of this example, since the expected size of the upper frame 32 is large as described above, in order to sufficiently enhance the fixing strength of the outdoor frame member 35, the reinforcing member 51 is attached to the outdoor frame member 35. The reinforcing member 51 is supported and welded and fixed to the anchor member 10 fixed to the upper side of the opening 3 of the building body 2.

補強部材５１は、図８に示したように、略円盤状の取付基部５２と、該取付基部５２の円周方向１箇所から取付基部５２の直径方向に伸長した平板状の延出板部５３とを備えている。このうちの取付基部５２は、屋外側額縁材３５に設けられた第１下側突条４３ｃと第１上側突条４６ｂとの間に、回転可能に係合されている。そして、屋外側額縁材３５を構成する第１裏面板４５よりも上方に配置された延出板部５３の先端部を、建物躯体２の開口部３の上辺に固定されたアンカー部材１０に対して溶接固定している。より具体的には、建物躯体２の開口部３の上辺に下半部が露出する状態で鉛直方向に打ち込まれた第１アンカー部材（差筋）１０ａに対し、第２アンカー部材（鉄筋）１０ｂを水平方向に溶接固定しておき、該第２アンカー部材１０ｂに対して、延出板部５３の先端部を溶接固定している。 As shown in FIG. 8, the reinforcing member 51 includes a substantially disk-shaped mounting base portion 52 and a flat plate-shaped extending plate portion 53 extending from one position in the circumferential direction of the mounting base portion 52 in the diameter direction of the mounting base portion 52. It has and. Of these, the attachment base 52 is rotatably engaged between the first lower protrusion 43c and the first upper protrusion 46b provided on the outdoor frame member 35. Then, the tip end portion of the extension plate portion 53 arranged above the first back plate 45 that constitutes the outdoor frame member 35 is attached to the anchor member 10 fixed to the upper side of the opening 3 of the building frame 2. It is fixed by welding. More specifically, the second anchor member (reinforcing bar) 10b is opposed to the first anchor member (reinforcing bar) 10a that is vertically driven with the lower half exposed at the upper side of the opening 3 of the building frame 2. Is welded and fixed in the horizontal direction, and the tip portion of the extension plate portion 53 is welded and fixed to the second anchor member 10b.

このような補強部材５１は、屋外側額縁材３５を上枠７に対して嵌合支持する以前に、屋外側額縁材３５に対して支持しておく。具体的には、取付基部５２を、第１下側突条４３ｃと第１上側突条４６ｂとの間に、屋外側額縁材３５の長手方向端部からスライド嵌合（係合）させることで、補強部材５１を屋外側額縁材３５に支持しておく。そして、屋外側額縁材３５を上枠７に対して嵌合支持した後、補強部材５１を屋外側額縁材３５に対して相対回転させることで、延出板部５３を第１裏面板４５よりも上方に位置させ、該延出板部５３の先端部をアンカー部材１０に対して溶接する。 Such a reinforcing member 51 supports the outdoor frame member 35 with respect to the outdoor frame member 35 before fitting and supporting the outdoor frame member 35 with the upper frame 7. Specifically, the mounting base 52 is slidably fitted (engaged) from the longitudinal end of the outdoor frame member 35 between the first lower protrusion 43c and the first upper protrusion 46b. The reinforcing member 51 is supported by the outdoor frame member 35 in advance. Then, after the outdoor frame member 35 is fitted and supported on the upper frame 7, the reinforcing member 51 is relatively rotated with respect to the outdoor frame member 35, so that the extension plate portion 53 is separated from the first back plate 45. Is also positioned above, and the tip end portion of the extension plate portion 53 is welded to the anchor member 10.

［屋内側額縁材３６の構造］
屋内側額縁材３６は、図５及び７に示すように、屋外側額縁材３５よりも見込寸法が小さくなっており、バランスウェイト２４の屋内側部の上面と対向し、屋外側額縁材３５を構成する第１表面板４１と同一平面上に配置された、平板状の第２表面板５４と、第２表面板５４の屋内側端部から上側に向けて直角に折れ曲がった第２屋内側立板５５とを備える。第２表面板５４の上面には、屋内外方向に離隔して２本の第２下側突条５６ａ、５６ｂが設けられている。屋外側に配置された第２下側突条５６ａは、第２表面板５４の屋外側端部に設けられている。屋内側に配置された第２下側突条５６ｂは、第２表面板５４の屋外寄り部分に設けられている。第２下側突条５６ｂの上方への突出量は、第２下側突条５６ａの上方への突出量よりも大きくなっている。 [Structure of indoor frame member 36]
As shown in FIGS. 5 and 7, the indoor-side frame member 36 has a smaller expected size than the outdoor-side frame member 35, faces the upper surface of the indoor side portion of the balance weight 24, and holds the outdoor-side frame member 35. A flat plate-shaped second surface plate 54, which is disposed on the same plane as the first surface plate 41 that constitutes the second indoor side stand, which is bent at a right angle from the indoor side end of the second surface plate 54 toward the upper side. And a plate 55. Two second lower ridges 56a and 56b are provided on the upper surface of the second surface plate 54 so as to be separated from each other in the indoor and outdoor directions. The second lower protrusion 56 a arranged on the outdoor side is provided at the outdoor end of the second surface plate 54. The second lower ridge 56b arranged on the indoor side is provided on a portion of the second surface plate 54 near the outdoor side. The amount of upward protrusion of the second lower protrusion 56b is larger than the amount of upward protrusion of the second lower protrusion 56a.

第２表面板５４の上面の屋外寄り部分で、第２下側突条５６ｂの屋内側に隣接した部分には、第２屋内側立板５５と略平行に配置された第２中間立板５７が設けられている。第２中間立板５７の上端部は、屋外側に向けて略直角に折れ曲がっており、その先端部（屋外側端部）に下方に向けて直角に折れ曲がった第２上側突条５９が設けられている。第２上側突条５９と第２下側突条５６ｂとは、屋内外方向位置が互いに一致しており、第２上側突条５９の先端部と第２下側突条５６ｂの先端部とは互いに対向している。一方、第２屋内側立板５５の上端部には、屋外側に向けて伸長し、第２表面板５４と略平行に配置された第２裏面板５８が設けられている。第２裏面板５８の屋外側端部は、第２中間立板５７の上端部につながっている。また、第２裏面板５８の上面には、内壁３１の下面が当接している。
以上のような屋内側額縁材３６は、第２中間立板５７よりも屋外側部分によって、第２嵌合部４０を構成している。 A second intermediate standing plate 57 arranged substantially parallel to the second indoor side standing plate 55 at a portion of the upper surface of the second surface plate 54 that is close to the outdoor and adjacent to the indoor side of the second lower protrusion 56b. Is provided. An upper end portion of the second intermediate standing plate 57 is bent at a substantially right angle toward the outdoor side, and a second upper projecting line 59 bent downward at a right angle is provided at a tip portion (outdoor side end portion) thereof. ing. The second upper ridges 59 and the second lower ridges 56b are aligned in the indoor and outdoor positions, and the tip of the second upper ridges 59 and the tip of the second lower ridges 56b are different from each other. They are facing each other. On the other hand, at the upper end of the second indoor side standing plate 55, a second back plate 58 that extends toward the outdoor side and is arranged substantially parallel to the second front plate 54 is provided. The outdoor end of the second back plate 58 is connected to the upper end of the second intermediate standing plate 57. The lower surface of the inner wall 31 is in contact with the upper surface of the second back plate 58.
The indoor-side frame member 36 as described above constitutes the second fitting portion 40 by the portion on the outdoor side of the second intermediate upright plate 57.

［屋内側取付アタッチメント３９の構造］
前述した通り、屋内側取付アタッチメント３９は、屋外側取付アタッチメント３７と同一部品であり、取付基板部４８と、１対の張出板部４９ａ、４９ｂとを備えている。このような屋内側取付アタッチメント３９は、取付基板部４８を屋内側から屋外側へと挿通した取付ねじ６３を、屋外側額縁材３５を構成する第１屋内側立板４２に対して螺合しさらに締め付けることにより、屋外側額縁材３５に固定されている。なお、屋内側取付アタッチメント３９は、屋外側額縁材３５を上枠７に対して嵌合支持する以前に、屋外側額縁材３５にねじ止め固定しておくこともできるし、屋外側額縁材３５を上枠７に対して嵌合支持した後に、屋外側額縁材３５に対してねじ止め固定しても良い。また、本例では、屋内側取付アタッチメント３９を、屋外側額縁材３５と別体として、屋外側額縁材３５に対して固定する構造を採用しているが、屋内側取付アタッチメントを、屋外側額縁材と一体に設けることもできる。この場合には、屋外側額縁材（第１屋内側立板）の屋内側側面から屋内側に伸長するように、１対の張出板部を設けることができる。そして、このような屋外側額縁材に対して屋内側額縁材３６を直接嵌合支持する。 [Structure of Indoor Attachment Attachment 39]
As described above, the indoor-side attachment attachment 39 is the same component as the outdoor-side attachment attachment 37, and includes the attachment substrate portion 48 and the pair of overhanging plate portions 49a and 49b. In such an indoor side attachment attachment 39, a mounting screw 63 having the mounting board portion 48 inserted from the indoor side to the outdoor side is screwed to the first indoor side standing plate 42 that constitutes the outdoor frame member 35. By further tightening, it is fixed to the outdoor frame member 35. The indoor-side attachment attachment 39 may be screwed and fixed to the outdoor-side frame member 35 before the outdoor-side frame member 35 is fitted and supported on the upper frame 7, and the outdoor-side frame member 35 may be fixed. After fitting and supporting the upper frame 7 to the upper frame 7, the frame member 35 on the outdoor side may be screwed and fixed. Further, in this example, the indoor side attachment attachment 39 is adopted as a separate body from the outdoor side frame material 35 and is fixed to the outdoor side frame material 35, but the indoor side attachment attachment is used as the outdoor side frame material 35. It can also be provided integrally with the material. In this case, a pair of projecting plate portions can be provided so as to extend from the indoor side surface of the outdoor frame member (first indoor side standing plate) to the indoor side. Then, the indoor frame member 36 is directly fitted and supported on such an outdoor frame member.

［屋内側額縁材３６と屋内側取付アタッチメント３９との嵌合構造］
図５及び７に示すように、屋内側取付アタッチメント３９に対し屋内側額縁材３６を嵌合した状態で、屋内側額縁材３６の第２下側突条５６ａを、屋内側取付アタッチメント３９の取付基板部４８の下端部に係合させている。また、上下方向に対向した第２下側突条５６ｂ及び第２上側突条５９のそれぞれの先端部を、張出板部４９ａ、４９ｂの段部５０ａ、５０ｂに対して、弾性的に係合（嵌合）させている。このように、屋内側取付アタッチメント３９に対して屋内側額縁材３６を嵌合する作業は、屋内側額縁材３６を屋内側取付アタッチメント３９に向けて屋外側へ押し込むことにより行う。すなわち、第２下側突条５６ｂ及び第２上側突条５９の先端部により、１対の張出板部４９ａ、４９ｂを弾性変形させながら、第２下側突条５６ｂ及び第２上側突条５９の先端部を、段部５０ａ、５０ｂに係合（嵌合）させる。このように本例では、屋内側額縁材３６を、屋外側額縁材３５に固定された屋内側取付アタッチメント３９に対し押し込み嵌合（スナップ嵌合、スナップイン）させることができるため、屋内側額縁材３６の取付作業スペースが、建物躯体２の開口部３の上辺とバランスウェイト２４との間に挟まれた狭い空間であるにもかかわらず、屋内側額縁材３６の取付作業を容易に行うことができる。 [Fitting structure of indoor frame member 36 and indoor mounting attachment 39]
As shown in FIGS. 5 and 7, with the indoor-side frame member 36 fitted to the indoor-side mounting attachment 39, the second lower protrusion 56 a of the indoor-side frame member 36 is attached to the indoor-side mounting attachment 39. It is engaged with the lower end of the substrate portion 48. Further, the tip ends of the second lower protrusion 56b and the second upper protrusion 59 that face each other in the vertical direction are elastically engaged with the step portions 50a and 50b of the overhang plate portions 49a and 49b. (Mated) As described above, the work of fitting the indoor-side frame member 36 to the indoor-side mounting attachment 39 is performed by pushing the indoor-side frame member 36 toward the indoor-side mounting attachment 39 toward the outdoor side. That is, the second lower protrusion 56b and the second upper protrusion 56b are elastically deformed by the tips of the second lower protrusion 56b and the second upper protrusion 59 while the second lower protrusion 56b and the second upper protrusion 59b are elastically deformed. The tip end portion of 59 is engaged (fitted) with the step portions 50a and 50b. As described above, in this example, the indoor-side frame member 36 can be press-fitted (snap-fitted, snap-in) with respect to the indoor-side attachment attachment 39 fixed to the outdoor-side frame member 35. Even though the work space for mounting the material 36 is a narrow space sandwiched between the upper side of the opening 3 of the building frame 2 and the balance weight 24, the work for mounting the indoor frame member 36 can be easily performed. You can

［下額縁３３の構造］
下額縁３３は、図２に示すように、上額縁３２と同じ見込寸法を有しており、下枠８の屋内側端部に、断面Ｌ字形状の取付部材６０を介して固定されている。具体的には、取付部材６０は、下枠８の屋内側側面の下端部に取付ねじ６１ａにより屋内側から固定されている。そして、このような取付部材６０に対して、下額縁３３の屋外側端部を、取付ねじ６１ｂにより上側から固定している。また、上額縁３２と同じように、下額縁３３の見込寸法も大きいため、下額縁３３の固定強度を十分に高めるべく、下額縁３３に対して補強部材５１ａを支持し、該補強部材５１ａを、建物躯体２の開口部３の下辺に固定されたアンカー部材１０に対して溶接固定している。なお、補強部材５１ａは、屋外側額縁材３５を溶接固定するのに用いた補強部材５１と同じ部材（共通部品）であるため、同等部分には同一符号を付して、重複する説明は省略する。なお、下額縁３３は、上額縁３２と同じ見込寸法を有しているが、下額縁３３の上方には、見込寸法の大きいバランスウェイト２４のような部材が存在せず、ねじ止め作業のための十分なスペースを確保できるため、上額縁３２のような構造を採用しなくて済む。 [Structure of lower frame 33]
As shown in FIG. 2, the lower frame 33 has the same expected size as the upper frame 32, and is fixed to the indoor side end of the lower frame 8 via a mounting member 60 having an L-shaped cross section. .. Specifically, the mounting member 60 is fixed to the lower end of the indoor side surface of the lower frame 8 from the indoor side by a mounting screw 61a. Then, the outdoor side end of the lower frame 33 is fixed to the mounting member 60 with the mounting screw 61b from above. Further, like the upper frame 32, since the lower frame 33 has a large expected size, the reinforcing member 51a is supported with respect to the lower frame 33 in order to sufficiently enhance the fixing strength of the lower frame 33. , Is fixed to the anchor member 10 fixed to the lower side of the opening 3 of the building body 2 by welding. Since the reinforcing member 51a is the same member (common part) as the reinforcing member 51 used for welding and fixing the outdoor side frame member 35, the same reference numerals are given to the same portions, and duplicate description will be omitted. To do. Although the lower frame 33 has the same estimated size as the upper frame 32, a member such as the balance weight 24 having a large estimated size does not exist above the lower frame 33, and therefore, the screwing work is performed. Since a sufficient space can be secured, it is not necessary to adopt a structure such as the upper frame 32.

［竪額縁３４の構造］
竪額縁３４は、図４に示すように、竪枠９を構成する屋内側竪枠９ｂの屋内側端部に、ねじ止め固定されている。具体的には、竪額縁３４は、断面略Ｊ字形状を有しており、その屋外側端部を、屋内側竪枠９ｂの屋内側端部に対して、取付ねじ６２により面内方向内側から固定している。 [Structure of Vertical Frame 34]
As shown in FIG. 4, the vertical frame 34 is screwed and fixed to the indoor side end of the indoor vertical frame 9b forming the vertical frame 9. Specifically, the vertical frame 34 has a substantially J-shaped cross-section, and its outdoor end portion is inward in the in-plane direction with respect to the indoor end portion of the indoor vertical frame 9b by a mounting screw 62. Has been fixed from.

以上のような本例の自然風力換気窓１においては、上枠７に対する上額縁３２の取付作業の作業性を良好にできるとともに、上額縁３２の製造コストを抑えることができる。
すなわち、上額縁３２を、屋外側額縁材３５と屋内側額縁材３６との２ピース構造として、屋外側額縁材３５及び屋内側額縁材３６の見込寸法を、上額縁３２を１ピース構造とした場合の見込寸法に比べて短くしている。また、屋外側額縁材３５及び屋内側額縁材３６をそれぞれ押し込み嵌合によって、屋外側額縁材３５及び屋内側額縁材３６の屋外側にそれぞれ存在する相手部材に対し嵌合支持できるようにしている。このため、屋外側額縁材３５及び屋内側額縁材３６を、屋外側に向けて押し込むだけで相手部材に対して取り付けることができ、ねじ止め作業を行う必要がないので、作業スペースが、建物躯体２の開口部３の上辺とバランスウェイト２４との間に挟まれた狭い空間であるにもかかわらず、屋外側額縁材３５及び屋内側額縁材３６の取付作業を容易に行うことができる。また、屋外側額縁材３５及び屋内側額縁材３６の見込寸法を短くできるため、屋外側額縁材３５及び屋内側額縁材３６に、屋外側への押し込み力によって断面弓形に変形するなどの問題が生じることを防止できる。したがって、屋外側額縁材３５の第１嵌合部３８を屋外側取付アタッチメント３７に対してスムーズに嵌合させることができるとともに、屋内側額縁材３６の第２嵌合部４０を屋内側取付アタッチメント３９に対してスムーズに嵌合させることができる。この結果、上枠７に対する上額縁３２の取付作業の作業性を良好にすることができる。 In the natural wind ventilation window 1 of this example as described above, the workability of attaching the upper frame 32 to the upper frame 7 can be improved, and the manufacturing cost of the upper frame 32 can be suppressed.
That is, the upper frame 32 has a two-piece structure including an outdoor frame member 35 and an indoor frame member 36, and the expected dimensions of the outdoor frame member 35 and the indoor frame member 36 are the upper frame 32 having a one-piece structure. It is shorter than the expected size. Further, the outdoor-side frame material 35 and the indoor-side frame material 36 are pushed and fitted to each other so that the outdoor-side frame material 35 and the indoor-side frame material 36 can be fitted and supported to the mating members respectively existing on the outdoor side. .. Therefore, the outdoor side frame material 35 and the indoor side frame material 36 can be attached to the mating member only by pushing them toward the outdoor side, and it is not necessary to perform screwing work, so that the work space is a building frame. Even though it is a narrow space sandwiched between the upper side of the second opening 3 and the balance weight 24, the outdoor side frame member 35 and the indoor side frame member 36 can be easily attached. Further, since the expected dimensions of the outdoor-side frame material 35 and the indoor-side frame material 36 can be shortened, there is a problem that the outdoor-side frame material 35 and the indoor-side frame material 36 are deformed into an arcuate cross section due to the pushing force to the outdoor side. It can be prevented from occurring. Therefore, the first fitting portion 38 of the outdoor-side frame material 35 can be smoothly fitted to the outdoor-side mounting attachment 37, and the second fitting portion 40 of the indoor-side frame material 36 can be fitted to the indoor-side attachment. It can be smoothly fitted to 39. As a result, the workability of attaching the upper frame 32 to the upper frame 7 can be improved.

また、屋外側額縁材３５及び屋内側額縁材３６の見込寸法を短くできるため、これら屋外側額縁材３５及び屋内側額縁材３６を製造するための押出型として、大型のものを使用しなくて済む。このため、上額縁３２の製造コストが嵩むことも防止できる。しかも、屋外側額縁材３５及び屋内側額縁材３６は、本例の自然風力換気窓１とは異なる別の窓装置に使用する額縁材と部品の共通化を図りやすくなるため、この面からも製造コストの低減を図れる。 Further, since the expected dimensions of the outdoor frame member 35 and the indoor frame member 36 can be shortened, it is possible to use a large extrusion mold for manufacturing the outdoor frame member 35 and the indoor frame member 36 without using a large one. I'm done. Therefore, the manufacturing cost of the upper frame 32 can be prevented from increasing. Moreover, since the outdoor-side frame member 35 and the indoor-side frame member 36 can easily share the parts with the frame member used in another window device different from the natural wind ventilation window 1 of this example, it is easy to achieve common parts. The manufacturing cost can be reduced.

本発明は、上額縁に限らず、下額縁又は竪額縁に適用することができる。さらに、自然風力換気窓に限らず、たてすべり出し窓、横すべり出し窓、外開き窓、内開き窓、ＦＩＸ窓などのプロジェクト窓は勿論、引き戸式の窓装置やドア装置に適用することもできる。また、上枠に対する屋外側額縁材の嵌合構造、及び、屋外側額縁材に対する屋内側額縁材の嵌合構造は、本例で説明した構造に限定されず、屋外側への押し込み作業により嵌合を実現できる構造であれば、従来から知られた各種の嵌合構造を採用することができる。また、自然風力換気窓の窓障子の開度を自然風力によって調節自在とする構造に関しても、実施の形態で説明した構造に限らず、従来から知られた各種の構造を採用することができる。 The present invention can be applied not only to the upper frame but also to the lower frame or the vertical frame. Further, it is not limited to the natural wind ventilation window, and can be applied not only to projecting windows such as vertical sliding windows, lateral sliding windows, outside windows, inside windows, and FIX windows, but also to sliding door type window devices and door devices. .. Further, the fitting structure of the outdoor frame material to the upper frame and the fitting structure of the indoor frame material to the outdoor frame material are not limited to the structure described in this example, and are fitted by the pushing operation to the outdoor side. As long as the structure can realize the fitting, various conventionally known fitting structures can be adopted. Further, the structure in which the opening degree of the window shovel of the natural wind ventilation window can be adjusted by natural wind force is not limited to the structure described in the embodiment, and various conventionally known structures can be adopted.

１自然風力換気窓
２建物躯体
３開口部
４窓枠
５ガラス障子
６額縁枠
７上枠
８下枠
９竪枠
９ａ屋外側竪枠
９ｂ屋内側竪枠
９ｃカバー
１０アンカー部材
１０ａ第１アンカー部材
１０ｂ第２アンカー部材
１１モルタル
１２框枠体
１３ガラスパネル
１４上框
１５下框
１６竪框
１７スペーサ
１８ａ、１８ｂガラス板
１９中間層
２０封着材
２１ａ〜２１ｃガラス溝
２２セッティングブロック
２３ａ屋外側シール材
２３ｂ屋内側シール材
２４バランスウェイト
２５ケース
２６揺動ピン
２７押し引き部材
２８施錠装置
２９係合ピン
３０係合片
３１内壁
３２上額縁
３３下額縁
３４竪額縁
３５屋外側額縁材
３６屋内側額縁材
３７屋外側取付アタッチメント
３８第１嵌合部
３９屋内側取付アタッチメント
４０第２嵌合部
４１第１表面板
４２第１屋内側立板
４３ａ〜４３ｃ第１下側突条
４４第１中間立板
４５第１裏面板
４６ａ、４６ｂ第１上側突条
４７取付ねじ
４８取付基板部
４９ａ、４９ｂ張出板部
５０ａ、５０ｂ段部
５１補強部材
５２取付基部
５３延出板部
５４第２表面板
５５第２屋内側立板
５６ａ、５６ｂ第２下側突条
５７第２中間立板
５８第２裏面板
５９第２上側突条
６０取付部材
６１ａ、６１ｂ取付ねじ
６２取付ねじ
６３取付ねじ 1 Natural Wind Ventilation Window 2 Building Frame 3 Opening 4 Window Frame 5 Glass Shoji 6 Frame Frame 7 Upper Frame 8 Lower Frame 9 Vertical Frame 9a Outdoor Vertical Frame 9b Indoor Vertical Frame 9c Cover 10 Anchor Member 10a First Anchor Member 10b Second anchor member 11 Mortar 12 Frame frame 13 Glass panel 14 Upper frame 15 Lower frame 16 Vertical frame 17 Spacers 18a, 18b Glass plate 19 Intermediate layer 20 Sealing material 21a to 21c Glass groove 22 Setting block 23a Outdoor sealing material 23b Indoor sealing material 24 Balance weight 25 Case 26 Swing pin 27 Push-pull member 28 Locking device 29 Engaging pin 30 Engaging piece 31 Inner wall 32 Upper frame 33 Lower frame 34 Vertical frame 35 Outdoor frame 36 Indoor frame 37 Outdoor-side attachment attachment 38 First fitting portion 39 Indoor-side attachment attachment 40 Second fitting portion 41 First surface plate 42 First indoor-side standing plate 43a to 43c First lower ridge 44 First intermediate standing plate 45-th 1 Back plate 46a, 46b 1st upper side ridge 47 Mounting screw 48 Mounting board part 49a, 49b Overhanging plate part 50a, 50b Step part 51 Reinforcing member 52 Mounting base part 53 Extended plate part 54 2nd surface plate 55 2nd ya Inner standing plates 56a, 56b Second lower ridge 57 Second intermediate standing plate 58 Second back plate 59 Second upper ridge 60 Mounting member 61a, 61b Mounting screw 62 Mounting screw 63 Mounting screw

Claims

A frame that is arranged on the indoor side of a frame material that constitutes one side of a rectangular frame-shaped opening frame that is arranged in the opening of a building and is fixed to the frame material,
An outdoor-side frame material arranged on the outdoor side and an indoor-side frame material arranged on the indoor side,
The outdoor-side frame material is arranged adjacent to the indoor side of the frame material, and by being pushed toward the frame material to the outdoor side, is fitted and supported directly on the frame material or through another member. ,
The indoor side frame material is arranged adjacent to the indoor side of the outdoor side frame material, and by pushing the outdoor side frame material toward the outdoor side, directly or through another member to the outdoor side frame material. Is fitted and supported,
Picture frame.

The frame according to claim 1, wherein the outdoor-side frame member is fitted and supported on the frame member via an outdoor-side attachment attached to an indoor end of the frame member.

The said indoor side frame material is fit-supported by the said outdoor side frame material via the indoor side attachment attachment combined with the indoor side edge part of the said outdoor side frame material, The inside of Claim 1-2. The frame described in any one of items.

A reinforcing member is supported on the outdoor-side frame member, and the reinforcing member is welded and fixed to an anchor member fixed to an opening of the building. The frame described in paragraph 1.

The frame according to claim 1, wherein the frame member is an upper frame that constitutes an upper side of the window frame that is the opening frame.

A rectangular frame-shaped window frame arranged in an opening of a building, a window shoji supported inside the window frame so that its opening can be freely adjusted by natural wind, and a frame frame fixed to the indoor side of the window frame. And
The window frame has an upper frame forming an upper side, a lower frame forming a lower side, and a pair of vertical frames forming a vertical side,
The window shoji has an upper frame forming an upper side, a lower frame forming a lower side, a pair of vertical frames forming a vertical side, and a balance weight fixed to an indoor side of the upper frame. And
The frame frame is fixed to at least the indoor side of the upper frame, and an upper frame arranged above the balance weight, and a pair of vertical frame fixed to the indoor side of the pair of vertical frames, respectively. , With,
A natural wind ventilation window,
A natural wind ventilation window, wherein the upper frame is the frame according to any one of claims 1 to 5.