JP2023034325A - Fireproof sash - Google Patents

Fireproof sash Download PDF

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Publication number
JP2023034325A
JP2023034325A JP2021140500A JP2021140500A JP2023034325A JP 2023034325 A JP2023034325 A JP 2023034325A JP 2021140500 A JP2021140500 A JP 2021140500A JP 2021140500 A JP2021140500 A JP 2021140500A JP 2023034325 A JP2023034325 A JP 2023034325A
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Japan
Prior art keywords
frame
outdoor
indoor
piece
shoji
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健司 平山
Kenji Hirayama
光宏 砂原
Mitsuhiro Sunahara
優 古田
Masaru Furuta
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YKK AP Inc
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YKK AP Inc
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Priority to JP2021140500A priority Critical patent/JP2023034325A/en
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Abstract

To provide a fireproof sash which can improve strength of a window frame and also which has fire resistance.SOLUTION: A fireproof sash includes a window frame, an outer sash, and an inner sash 6. A newly-provided right vertical frame 24 of the window frame has a hollow portion 244A placed to extend from the outdoor side to the indoor side of the inner sash 6 in the depth direction when the inner sash 6 is closed. An outdoor hole 249 communicating with the hollow portion 244A at a position on the outdoor side of the inner sash 6 and an indoor hole communicating with the hollow portion 244A at a position on the indoor side of the inner sash 6 are formed in the depth direction at an inner surface portion 242 of the newly-provided right vertical frame 24 facing the inner sash 6. An outdoor width surface portion 282 of a vertical reinforcing member 28 serving as a partition wall for partitioning an outdoor space communicating with the outdoor hole 249 and an indoor space communicating with the indoor hole is provided in the hollow portion 244A.SELECTED DRAWING: Figure 8

Description

本発明は、建物の開口部に設置される防火サッシに係り、新設用に加えて改装用にも利用できる防火サッシに関する。 TECHNICAL FIELD The present invention relates to a fireproof sash to be installed in an opening of a building, and to a fireproof sash that can be used not only for new construction but also for renovation.

従来、既設サッシの既設枠内に新設枠を取り付け、その新設枠に新設の障子を装着することで既設サッシを新設サッシに改装する改装サッシが提案されている。この改装サッシは、例えば、特許文献1に開示されたように、既設枠にアタッチメントとなる短尺の下地材を複数取り付け、これらの下地材に新設枠を取り付ける構造が一般的である。 Conventionally, a remodeling sash has been proposed in which a new frame is attached to the existing frame of the existing sash, and a new shoji is attached to the new frame to remodel the existing sash into a new sash. For example, as disclosed in Patent Literature 1, this refurbished sash generally has a structure in which a plurality of short base materials that serve as attachments are attached to an existing frame, and a new frame is attached to these base materials.

特開2010-174549号公報JP 2010-174549 A

前述した従来の改装サッシは、防火性は考慮されていないため、防火地域の建物には利用できないという課題がある。このため、新設枠および障子として防火性能を有する防火サッシを用いることが考えられる。
ところで、改装用の新設枠は、建物の躯体に直接取り付けられるものではないため、特に窓枠の強度を高める必要がある。このことは、改装用に限らず、新設用に用いる場合にも有効である。
このため、改装用および新設用に利用可能な防火サッシとして、窓枠の強度を向上でき、かつ、防火性を有する防火サッシが求められている。
The above-mentioned conventional modified sashes do not consider fire prevention, so there is a problem that they cannot be used for buildings in fire prevention areas. For this reason, it is conceivable to use fireproof sashes with fireproof performance as new frames and shoji.
By the way, since the new frame for renovation is not directly attached to the frame of the building, it is particularly necessary to increase the strength of the window frame. This is effective not only for refurbishment but also for new construction.
Therefore, as a fireproof sash that can be used for refurbishment and new construction, there is a demand for a fireproof sash that can improve the strength of the window frame and has fireproof properties.

本発明の目的は、窓枠の強度を向上でき、かつ、防火性を有する防火サッシを提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a fireproof sash that can improve the strength of a window frame and has fireproof properties.

本発明は、窓枠と、障子とを備える防火サッシであって、前記窓枠の縦枠および横枠のうち少なくとも一つの枠は、障子を閉めた際に、見込み方向において、障子の室外側から室内側に跨って配置されるホロー部を有する枠材で構成され、前記枠材の障子に対向する見込み面には、見込み方向において、前記障子の室外側の位置で前記ホロー部に連通する室外穴と、前記障子の室内側の位置で前記ホロー部に連通する室内穴とが形成され、前記ホロー部内には、前記室外穴に連通する室外空間と、前記室内穴に連通する室内空間とを区画する区画壁が設けられていることを特徴とする。 The present invention is a fireproof sash comprising a window frame and a shoji, wherein at least one of the vertical frame and the horizontal frame of the window frame is positioned on the outdoor side of the shoji in the perspective direction when the shoji is closed. It is composed of a frame member having a hollow portion arranged across the interior side of the room, and the projection surface of the frame member facing the shoji is communicated with the hollow portion at a position on the outdoor side of the shoji in the projection direction. An outdoor hole and an indoor hole communicating with the hollow portion are formed at a position on the indoor side of the shoji, and the hollow portion includes an outdoor space communicating with the outdoor hole and an indoor space communicating with the indoor hole. is provided with a partition wall that partitions the

本発明の防火サッシによれば、窓枠の強度を向上でき、かつ、防火性を有する防火サッシを提供できる。 ADVANTAGE OF THE INVENTION According to the fireproof sash of this invention, the strength of a window frame can be improved and the fireproof sash which has fireproof property can be provided.

本発明の実施形態に係る防火サッシを示す縦断面図である。It is a longitudinal section showing a fire protection sash concerning an embodiment of the present invention. 前記実施形態に係る防火サッシを示す横断面図である。It is a cross-sectional view which shows the fireproof sash which concerns on the said embodiment. 前記防火サッシの上枠を示す縦断面図である。It is a longitudinal cross-sectional view which shows the upper frame of the said fireproof sash. 前記防火サッシの上枠を示す縦断面図である。It is a longitudinal cross-sectional view which shows the upper frame of the said fireproof sash. 前記防火サッシの新設上枠の穴を塞ぐキャップおよび塞ぎ材の取付位置を示す説明図である。It is explanatory drawing which shows the attachment position of the cap which close|closes the hole of the new upper frame of the said fireproof sash, and a closing material. 前記防火サッシの新設上枠の召合せ位置を示す説明図である。It is explanatory drawing which shows the gathering position of the new upper frame of the said fireproof sash. 前記防火サッシの左縦枠を示す横断面図である。It is a cross-sectional view which shows the left vertical frame of the said fireproof sash. 前記防火サッシの右縦枠を示す横断面図である。It is a cross-sectional view which shows the right vertical frame of the said fireproof sash. 前記防火サッシの施工手順を説明する説明図である。It is explanatory drawing explaining the construction procedure of the said fireproof sash. 前記防火サッシの上遮炎金具および縦遮炎金具間を塞ぐ加熱発泡材の発泡状態を示す説明図である。FIG. 4 is an explanatory view showing a foaming state of a heating foam material closing a space between the upper flame shielding fitting and the vertical flame shielding fitting of the fireproof sash. 前記防火サッシの右縦枠のホロー部内の加熱発泡材の発泡状態を示す説明図である。It is explanatory drawing which shows the foaming state of the heating foaming material in the hollow part of the right vertical frame of the said fireproof sash. 本発明の変形例に係る防火サッシの要部を示す縦断面図である。It is a longitudinal cross-sectional view which shows the principal part of the fireproof sash which concerns on the modification of this invention.

以下、本発明の実施形態を図面に基づいて説明する。
図1,2に示すように、本実施形態の改装サッシ1は、マンションなどの建物の躯体2を覆う外壁3の開口部に取り付けられている既設サッシの既設枠10の開口内に新設枠20が設置されたものである。既設枠10は、躯体2にアンカー4を介して取り付けられていた既設サッシから既設の障子を取り外して躯体2に残存したものである。本実施形態の改装サッシ1は、新設枠20内に外障子5および内障子6が引違い可能に配置された引違い窓を新設サッシとして構成したものである。なお、外障子5の室外側には網戸7も配置されている。そして、本発明の防火サッシは、窓枠である新設枠20と、障子である外障子5、内障子6を備える新設サッシによって構成されている。
以下の説明において、改装サッシ1の左右方向をX軸方向とし、改装サッシ1の見込み方向をY軸方向とし、改装サッシ1の上下方向をZ軸方向とする。X,Y,Z軸方向は互いに直交する。また、改装サッシ1を室内側から見た際に左側に位置する縦枠を左縦枠、右側に位置する縦枠を右縦枠とする。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the refurbished sash 1 of the present embodiment has a new frame 20 installed in the opening of the existing frame 10 of the existing sash attached to the opening of the outer wall 3 covering the skeleton 2 of a building such as an apartment building. is installed. The existing frame 10 is obtained by removing the existing shoji from the existing sash attached to the frame 2 via the anchor 4 and remaining on the frame 2 . The refurbished sash 1 of the present embodiment is constructed as a new sash with a double sliding window in which the outer shoji 5 and the inner shoji 6 are arranged in a new frame 20 so as to be able to slide. A screen door 7 is also arranged on the outdoor side of the outer shoji 5 . The fireproof sash of the present invention is composed of a new frame 20 that is a window frame, and a new sash that includes an outer shoji 5 and an inner shoji 6 that are shoji.
In the following description, the horizontal direction of the refurbished sash 1 is the X-axis direction, the viewing direction of the refurbished sash 1 is the Y-axis direction, and the vertical direction of the refurbished sash 1 is the Z-axis direction. The X-, Y-, and Z-axis directions are orthogonal to each other. Also, when the refurbished sash 1 is viewed from the inside of the room, the vertical frame located on the left side is called the left vertical frame, and the vertical frame located on the right side is called the right vertical frame.

既設枠10は、既設上枠11、既設下枠12、既設左縦枠13、既設右縦枠14を枠組みして構成されている。本実施形態では、既設上枠11、既設下枠12、既設左縦枠13、既設右縦枠14は、引違い窓用の窓枠であり、それぞれサッシ用のアンカー4に固定されている。
新設枠20は、新設上枠21、新設下枠22、新設左縦枠23、新設右縦枠24を枠組みして構成されており、新設上枠21および新設下枠22には、外障子5、内障子6をX軸方向に案内するレールが形成されている。
The existing frame 10 is composed of an existing upper frame 11 , an existing lower frame 12 , an existing left vertical frame 13 and an existing right vertical frame 14 . In this embodiment, the existing upper frame 11, the existing lower frame 12, the existing left vertical frame 13, and the existing right vertical frame 14 are window frames for double sliding windows, and are fixed to anchors 4 for sashes.
The newly-established frame 20 is composed of a newly-established upper frame 21, a newly-established lower frame 22, a newly-established left vertical frame 23, and a newly-established right-vertical frame 24. , a rail for guiding the inner shoji 6 in the X-axis direction is formed.

新設枠20は、既設枠10に対して、後述するように、アタッチメント31~34やカバー材41,43,44を介して取り付けられている。以下、新設枠20および既設枠10の構造および新設枠20の取付構造について説明する。 The new frame 20 is attached to the existing frame 10 via attachments 31 to 34 and cover members 41, 43 and 44, as will be described later. The structures of the new frame 20 and the existing frame 10 and the mounting structure of the new frame 20 will be described below.

[新設上枠]
新設上枠21は、図3、図4にも示すように、アルミ製の上枠本体210と、上枠本体210にネジ255で固定された樹脂製の上枠アングル材211とを有している。上枠アングル材211には、窓額縁81がネジ止めされている。なお、窓額縁81の材質は特に限定されず、アルミ製、樹脂製、木製などの窓額縁81が利用できる。
上枠本体210は、見込み方向(Y軸方向)に沿って形成された下面部212と、下面部212の上方に設けられた上面部213と、下面部212および上面部213を連結する連結片部2141、2142、2143と、下面部212の室外側端部から上方に延出された室外片部215と、下面部212の室外側端部から下方に延出された網戸レール216と、下面部212から下方に延出されて外障子5を案内する外レール217と、下面部212から下方に延出されて内障子6を案内する内レール218とを備えている。
上枠本体210は、下面部212、上面部213、連結片部2141、2142で囲まれる第1ホロー部214Aと、下面部212、上面部213、連結片部2142、2143で囲まれる第2ホロー部214Bとを有する。
外レール217および内レール218間の下面部212において、第1ホロー部214Aを区画する部分によって第1下面部212Aが構成され、第1下面部212Aの室外側であり第1ホロー部214Aに面しておらず、上方が開放された部分によって第2下面部212Bが構成される。
なお、図5に示すように、第1下面部212Aには、上枠本体210の長手方向(X軸方向)の複数箇所、具体的には6箇所に穴219が形成されている。穴219は、図3、4に示すように、新設上枠21を固定するネジ251を挿通するために設けられている。
また、6箇所の穴219のうち、左右両端から2箇所、計4箇所の穴219には樹脂製のキャップ265が取り付けられて穴219を塞いでいる。
[New top frame]
3 and 4, the new upper frame 21 has an aluminum upper frame body 210 and resin-made upper frame angle members 211 fixed to the upper frame body 210 with screws 255. there is A window frame 81 is screwed to the upper frame angle member 211 . The material of the window frame 81 is not particularly limited, and the window frame 81 made of aluminum, resin, wood, or the like can be used.
The upper frame main body 210 includes a lower surface portion 212 formed along the projection direction (Y-axis direction), an upper surface portion 213 provided above the lower surface portion 212, and a connecting piece that connects the lower surface portion 212 and the upper surface portion 213. Parts 2141, 2142, 2143, an outdoor piece part 215 extending upward from the outdoor end of the lower surface part 212, a screen door rail 216 extending downward from the outdoor end of the lower surface part 212, the lower surface An outer rail 217 extending downward from the portion 212 to guide the outer shoji 5 and an inner rail 218 extending downward from the lower surface portion 212 to guide the inner shoji 6 are provided.
The upper frame main body 210 includes a first hollow portion 214A surrounded by the lower surface portion 212, the upper surface portion 213, and the connecting piece portions 2141 and 2142, and a second hollow portion surrounded by the lower surface portion 212, the upper surface portion 213, and the connecting piece portions 2142 and 2143. 214B.
In the lower surface portion 212 between the outer rail 217 and the inner rail 218, the portion that defines the first hollow portion 214A constitutes the first lower surface portion 212A, which is the outdoor side of the first lower surface portion 212A and faces the first hollow portion 214A. 2nd lower surface part 212B is comprised by the part which did not do and the upper part was opened.
As shown in FIG. 5, holes 219 are formed at a plurality of locations, specifically six locations, in the longitudinal direction (X-axis direction) of the upper frame body 210 in the first lower surface portion 212A. Holes 219 are provided for inserting screws 251 for fixing the new upper frame 21, as shown in FIGS.
Among the six holes 219 , resin caps 265 are attached to two holes 219 from both left and right ends, that is, a total of four holes 219 to block the holes 219 .

一方、中央の2箇所の穴219は、図6にも示すように、塞ぎ材26で塞がれている。図6は、新設上枠21の召合せ位置を下方から見上げた図であり、中央の2箇所の穴219は、召合せ位置を挟んで左右方向(X軸方向)に離れて配置されている。召合せ位置は、外障子5および内障子6を閉鎖した際に召合せ框が配置される位置、つまり新設上枠21のX軸方向の中央位置である。この召合せ位置の外レール217、内レール218間には風止め板80が取り付けられ、穴219は、風止め板80を挟んで左右位置に形成され、塞ぎ材26は各穴219を塞ぐように、風止め板80を挟んで左右位置に配置されている。なお、風止め板80と、風止め板80の外障子5側つまり新設左縦枠23側に配置された塞ぎ材26との間には、加熱発泡材713が新設上枠21の下面部212に貼られている。
塞ぎ材26は、難燃性の材料、例えば、金属や難燃性樹脂等で形成された板状の部材であり、図4および図6に示すように、第1下面部212Aに当接して配置されて穴219を塞ぐ塞ぎ部261と、第2下面部212Bに当接して配置されて第2下面部212Bにネジ263で固定される固定部262とを備える。
On the other hand, the two central holes 219 are closed with the closing member 26 as shown in FIG. FIG. 6 is a view looking up at the meeting position of the new upper frame 21 from below, and the two central holes 219 are spaced apart in the left-right direction (X-axis direction) across the meeting position. . The meeting position is the position where the meeting frame is arranged when the outer shoji 5 and the inner shoji 6 are closed, that is, the central position of the newly installed upper frame 21 in the X-axis direction. A windbreak plate 80 is attached between the outer rail 217 and the inner rail 218 at this meeting position, and holes 219 are formed on the left and right sides of the windbreak plate 80 , and the closing member 26 closes each hole 219 . In addition, they are arranged at left and right positions with the wind guard plate 80 interposed therebetween. Between the wind stop plate 80 and the closing member 26 arranged on the outer shoji 5 side of the wind stop plate 80 , that is, on the newly installed left vertical frame 23 side, the heating foam material 713 is placed on the lower surface 212 of the newly installed upper frame 21 . affixed to
The closing member 26 is a plate-shaped member made of a flame-retardant material such as metal or flame-retardant resin, and as shown in FIGS. It includes a closing portion 261 arranged to block the hole 219 and a fixing portion 262 arranged in contact with the second lower surface portion 212B and fixed to the second lower surface portion 212B with screws 263 .

新設上枠21は、図3,4に示すように、アタッチメント31および上カバー材41を介して既設上枠11に固定されている。
既設上枠11は、外レール111、内レール112、室外片113、室内片114を備えて構成されている。
そして、アタッチメント31は、外レール111にネジ311で固定されている。なお、アタッチメント31は、既設上枠11の種類などに応じて形状が異なる複数種類が用意され、そこから選択されて用いられる。また、アタッチメント31は、短尺のピース材であり、既設上枠11の長手方向に沿って間隔を空けて複数設けられている。例えば、アタッチメント31は、既設上枠11の左右両端と、中央位置と、それらの間の4~6箇所に取り付けられている。
The newly installed upper frame 21 is fixed to the existing upper frame 11 via an attachment 31 and an upper cover member 41, as shown in FIGS.
The existing upper frame 11 comprises an outer rail 111 , an inner rail 112 , an outdoor piece 113 and an indoor piece 114 .
The attachment 31 is fixed to the outer rail 111 with screws 311 . A plurality of types of attachments 31 having different shapes are prepared according to the type of the existing upper frame 11, and the attachments 31 are selected and used. Moreover, the attachments 31 are short piece materials, and are provided in plurality at intervals along the longitudinal direction of the existing upper frame 11 . For example, the attachments 31 are attached to the left and right ends of the existing upper frame 11, the central position, and 4 to 6 points between them.

[上カバー材]
上カバー材41は、アルミ製の押出形材で構成され、既設上枠11および新設上枠21に沿って左右方向(X軸方向)に長尺な部材である。なお、本実施形態では、上カバー材41の左右方向(長手方向)の寸法は、新設上枠21よりも大きく、既設上枠11よりも小さく設定されている。
上カバー材41は、見込み片部411と、室内当接片412と、室外当接片413とを備えて構成されている。見込み片部411は、改装サッシ1の見込み方向(Y軸方向)に延長され、さらに室外側端部が上側(外周側)に僅かに延長された略平板状の部分であり、アタッチメント31にネジ451で固定されている。
室内当接片412は、見込み片部411の室外側および外周側の端部から既設上枠11側つまり上方に延出されている。室内当接片412の室外側には上下に離れた一対の突条部が形成され、この突条部間の溝部分には水密材416が配置されている。室内当接片412は、前記突条部が室外片113の室内面に当接し、これにより上カバー材41は見込み方向(Y軸方向)に位置決めされている。また、水密材416が室外片113に密着することで、室外片113および室内当接片412間の水密性を確保している。
室外当接片413は、見込み片部411の室外側および外周側の端部、つまり室内当接片412の基端部から室外側に延出された室外延出部4131と、室外延出部4131から新設上枠21側つまり下方に延出された室外見付け面部4132と、室外見付け面部4132から室内側に延出されて新設上枠21の室外面つまり室外片部215に当接する室外当接部4133とを備える。
室外当接部4133の室内側端部は、断面コ字状の保持部とされ、この保持部には水密材417が保持されている。そして、室外当接部4133に室外片部215が当接することで、新設上枠21は見込み方向に位置決めされている。また、水密材417が室外片部215に密着することで、上カバー材41および新設上枠21間の水密性を確保している。
なお、上カバー材41は、後述する縦カバー材43,44の上端面を覆うように配置されている。このため、室外当接部4133の両端部が、縦カバー材43,44に干渉しないように、室外当接部4133のX軸方向の長さは、室外延出部4131や室外見付け面部4132よりも短くされ、室外見付け面部4132の左右両端部には室外当接部4133が形成されていない領域、つまり縦カバー材43,44が配置されるスペースが確保されている。
[Upper cover material]
The upper cover member 41 is an extruded shape made of aluminum, and is a member elongated in the left-right direction (X-axis direction) along the existing upper frame 11 and the new upper frame 21 . In this embodiment, the dimension of the upper cover member 41 in the left-right direction (longitudinal direction) is set larger than the new upper frame 21 and smaller than the existing upper frame 11 .
The upper cover member 41 is configured by including a projection piece portion 411 , an indoor contact piece 412 and an outdoor contact piece 413 . The prospective piece 411 is a substantially flat plate-like portion that extends in the prospective direction (Y-axis direction) of the refurbished sash 1 and further extends slightly upward (peripheral side) at the outside end of the room. 451 is fixed.
The indoor contact piece 412 extends upward from the end of the projection piece 411 on the outdoor side and the outer peripheral side to the existing upper frame 11 side, that is, upward. A pair of vertically spaced protrusions are formed on the outdoor side of the indoor contact piece 412, and a watertight material 416 is arranged in the groove portion between the protrusions. The protrusion portion of the indoor contact piece 412 contacts the indoor surface of the outdoor piece 113, thereby positioning the upper cover member 41 in the perspective direction (Y-axis direction). In addition, the watertightness between the outdoor piece 113 and the indoor contact piece 412 is ensured by the watertight material 416 closely contacting the outdoor piece 113 .
The outdoor contact piece 413 includes an outdoor extension portion 4131 extending to the outdoor side from the ends of the projection piece portion 411 on the outdoor side and the outer peripheral side, that is, the base end portion of the indoor contact piece 412, and an outdoor extension portion. 4131 to the new upper frame 21 side, i.e., downward extension, and an outdoor abutment extending from the outdoor appearance surface part 4132 to the indoor side and contacting the outdoor surface of the new upper frame 21, i.e., the outdoor piece 215. 4133.
The indoor end portion of the outdoor contact portion 4133 is a holding portion having a U-shaped cross section, and the holding portion holds the watertight material 417 . The outdoor piece portion 215 abuts against the outdoor abutment portion 4133, so that the newly installed upper frame 21 is positioned in the projection direction. In addition, the watertightness between the upper cover member 41 and the newly installed upper frame 21 is ensured by the watertightness member 417 closely contacting the outdoor piece portion 215 .
The upper cover member 41 is arranged so as to cover upper end surfaces of vertical cover members 43 and 44, which will be described later. For this reason, the length of the outdoor contact portion 4133 in the X-axis direction is smaller than the outdoor extension portion 4131 and the outdoor viewing surface portion 4132 so that both ends of the outdoor contact portion 4133 do not interfere with the vertical cover members 43 and 44 . The left and right end portions of the exterior facing surface portion 4132 are provided with areas where the exterior contact portions 4133 are not formed, that is, spaces in which the vertical cover members 43 and 44 are arranged.

上カバー材41には、火災時に発泡して上カバー材41と新設上枠21との間を塞ぐ加熱発泡材711、712が設けられている。
加熱発泡材711は、上カバー材41の長手方向に渡って配置され、室外見付け面部4132の室内面に接着剤などで貼付されている。なお、加熱発泡材711は、縦カバー材43,44と干渉しないように、上カバー材41の左右両端部を除く部分、つまり室外当接部4133が設けられている範囲に配置されている。
加熱発泡材712は、上カバー材41の左右両端部つまり加熱発泡材711が配置されていない領域に配置され、室外延出部4131の下面に貼り付けられている。なお、縦カバー材43,44の上端は室外片部215の上端とほぼ同じ高さ位置とされており、室外延出部4131の下面に貼付される加熱発泡材712と干渉することはない。したがって、加熱発泡材712は、加熱発泡材711が設けられていない上カバー材41の左右両端部を塞ぐために設けられている。
この上カバー材41は、前述したように、見込み片部411からアタッチメント31にねじ込まれるネジ451でアタッチメント31に取り付けられている。
The upper cover member 41 is provided with heating foam members 711 and 712 which are foamed in the event of a fire to block the space between the upper cover member 41 and the new upper frame 21 .
The heating foam member 711 is arranged along the longitudinal direction of the upper cover member 41 and adhered to the interior surface of the exterior facing surface portion 4132 with an adhesive or the like. Note that the heating foam material 711 is arranged in a portion excluding the left and right ends of the upper cover member 41, that is, in the range where the outdoor contact portion 4133 is provided so as not to interfere with the vertical cover members 43 and 44.
The heating foam material 712 is arranged on both left and right ends of the upper cover member 41 , that is, in areas where the heating foam material 711 is not arranged, and is attached to the lower surface of the outdoor extension part 4131 . The upper ends of the vertical cover members 43 and 44 are positioned at substantially the same height as the upper end of the outdoor piece 215 and do not interfere with the heating foam material 712 attached to the lower surface of the outdoor extension 4131 . Therefore, the heating foam material 712 is provided to close the left and right ends of the upper cover member 41 where the heating foam material 711 is not provided.
The upper cover member 41 is attached to the attachment 31 with the screw 451 screwed into the attachment 31 from the projection piece 411, as described above.

新設上枠21は、上カバー材41に対してスペーサー61を挟んで配置され、上カバー材41にネジ251で固定されている。スペーサー61は、短尺のピース材であり、新設上枠21の長手方向(X軸方向)に間隔を空けて複数配置されている。また、新設上枠21を上カバー材41に固定するネジ251は、X軸方向において、スペーサー61やアタッチメント31と異なる位置に配置され、新設上枠21の上面部213から上カバー材41の見込み片部411にねじ込まれている。本実施形態では、新設上枠21は、穴219に位置にそれぞれ設けられた計6本のネジ251で上カバー材41に固定されている。なお、X軸方向において、ネジ251とスペーサー61とを同位置に配置してもよい。 The new upper frame 21 is arranged with a spacer 61 interposed with respect to the upper cover member 41 and fixed to the upper cover member 41 with screws 251 . The spacers 61 are short piece materials, and are arranged in plurality at intervals in the longitudinal direction (X-axis direction) of the new upper frame 21 . The screw 251 for fixing the new upper frame 21 to the upper cover member 41 is arranged in a different position from the spacer 61 and the attachment 31 in the X-axis direction. It is screwed into piece 411 . In this embodiment, the new upper frame 21 is fixed to the upper cover member 41 with a total of six screws 251 provided at respective positions in the holes 219 . Note that the screw 251 and the spacer 61 may be arranged at the same position in the X-axis direction.

[上遮炎金具]
既設上枠11と新設上枠21との間には、所定寸法のクリアランスが設けられている。このクリアランスは、新設枠20を既設枠10内に設置するために必要なクリアランスである。このクリアランスは、上遮炎金具51によって塞がれている。
すなわち、新設上枠21の上面部213の室内側端部には、断面L字状に形成され、既設上枠11や新設上枠21の長手方向(X軸方向)に沿って長尺とされた金属製の上遮炎金具51が固定されている。本実施形態では、上遮炎金具51の長手方向(X軸方向)の寸法は、新設上枠21の外法寸法よりも大きく設定されている。
上遮炎金具51は、既設上枠11の室内片114の室内面つまり室内側見付け面に当接する見付け面部511と、新設上枠21に固定される見込み面部512とを有する。上遮炎金具51の見込み面部512は、ネジ513で上面部213に固定されている。一方、見付け面部511は室内片114にネジで固定されておらず、既設上枠11の室内側見付け面に対してスライド移動可能かつクリアランスを閉塞可能に当接されている。
[Upper flame shield fitting]
A clearance of a predetermined dimension is provided between the existing upper frame 11 and the newly installed upper frame 21 . This clearance is the clearance required to install the new frame 20 within the existing frame 10 . This clearance is closed by the upper flame shield metal fitting 51 .
That is, the upper surface portion 213 of the new upper frame 21 has an L-shaped cross section at the end portion on the indoor side, and is elongated along the longitudinal direction (X-axis direction) of the existing upper frame 11 and the new upper frame 21 . A metal upper flame shield fitting 51 is fixed. In the present embodiment, the dimension in the longitudinal direction (X-axis direction) of the upper flame shield fitting 51 is set larger than the outer dimension of the new upper frame 21 .
The upper flame shield fitting 51 has a facing surface portion 511 that abuts on the interior surface of the interior piece 114 of the existing upper frame 11 , that is, the interior facing surface, and a projection surface portion 512 that is fixed to the new upper frame 21 . The projected surface portion 512 of the upper flame shielding metal fitting 51 is fixed to the upper surface portion 213 with screws 513 . On the other hand, the viewing surface portion 511 is not fixed to the interior piece 114 by screws, but abuts against the interior viewing surface of the existing upper frame 11 so as to be slidable and close the clearance.

[新設下枠]
新設下枠22は、図1に示すように、アルミ製の下枠本体220と、下枠本体220にネジ止めされた樹脂製の下枠アングル材221とを有している。下枠アングル材221には、アルミ製、樹脂製、木製等で構成される窓額縁82がねじ止めされている。
下枠本体220は、外障子5、内障子6、網戸7を案内する外レール、内レール、網戸レールを備える。また、下枠本体220の中空部には、金属製の補強材29が配置され、補強材29には加熱発泡材721が貼られている。また、下枠本体220の外レールおよび内レール間の上面には加熱発泡材722が召合せ位置等に貼られている。
[New lower frame]
As shown in FIG. 1, the new lower frame 22 has an aluminum lower frame main body 220 and resin lower frame angle members 221 screwed to the lower frame main body 220 . A window frame 82 made of aluminum, resin, wood, or the like is screwed to the lower frame angle member 221 .
The lower frame main body 220 includes an outer rail for guiding the outer shoji 5, the inner shoji 6, and the screen door 7, an inner rail, and a screen door rail. A metal reinforcing member 29 is arranged in the hollow portion of the lower frame main body 220 , and a heating foam member 721 is attached to the reinforcing member 29 . A heating foam material 722 is attached to the upper surface between the outer rail and the inner rail of the lower frame main body 220 at a meeting position or the like.

新設下枠22は、アタッチメント32を介して既設下枠12に固定されている。
既設下枠12は、外レール、内レール、室外片、室内片を備えて構成され、アンカー4に固定されている。アタッチメント32は、既設下枠12の外レールおよび室内片にネジ321で固定されている。
新設下枠22は、ネジ252によって、内外のレール間と室内側端部の位置でそれぞれアタッチメント32に固定されている。
The newly installed lower frame 22 is fixed to the existing lower frame 12 via attachments 32 .
The existing lower frame 12 is configured with an outer rail, an inner rail, an outdoor piece, and an indoor piece, and is fixed to the anchors 4 . The attachment 32 is fixed to the outer rail of the existing lower frame 12 and the inner piece with screws 321 .
The newly installed lower frame 22 is fixed to the attachment 32 by screws 252 between the inner and outer rails and at the indoor end.

[新設左縦枠]
新設左縦枠23は、図7に示すように、アルミ製の左縦枠本体230と、左縦枠本体230にネジ256で固定された樹脂製の縦枠アングル材231とを有している。縦枠アングル材231には、図2に示すように、アルミ製、樹脂製、木製等で構成される窓額縁83がねじ止めされている。
左縦枠本体230は、見込み方向(Y軸方向)に沿って形成された内面部232と、内面部232の外周側つまり既設左縦枠13側に設けられた外面部233と、内面部232および外面部233を連結する連結片部2341、2342と、内面部232の室外側端部から外周側に延出された室外片部235と、内面部232の室外側端部から内周側に延出された網戸ガイド片236と、内面部232から内周側に延出されて外障子5を閉めた際に当接する引寄せ片237とを備えている。
左縦枠本体230は、内面部232、外面部233、連結片部2341、2342で囲まれるホロー部234Aを有する。なお、連結片部2341は、内面部232の見込み方向の略中央位置に設けられており、ホロー部234Aは、見込み方向において外障子5よりも室内側に設けられている。
内面部232において、ホロー部234Aに面した部分には、穴239が上下方向に沿って複数形成されている。穴239は、新設左縦枠23を固定するネジ253を挿通するために設けられている。
[New left vertical frame]
As shown in FIG. 7, the new left vertical frame 23 has an aluminum left vertical frame main body 230 and a resin vertical frame angle member 231 fixed to the left vertical frame main body 230 with screws 256. . As shown in FIG. 2, a window frame 83 made of aluminum, resin, wood, or the like is screwed to the vertical frame angle member 231 .
The left vertical frame main body 230 includes an inner surface portion 232 formed along the projection direction (Y-axis direction), an outer surface portion 233 provided on the outer peripheral side of the inner surface portion 232, that is, the existing left vertical frame 13 side, and an inner surface portion 232. and connecting piece portions 2341 and 2342 that connect the outer surface portion 233, an outdoor piece portion 235 extending from the outdoor side end of the inner surface portion 232 to the outer peripheral side, and the inner peripheral side from the outdoor side end of the inner surface portion 232. It has an extended screen door guide piece 236 and a drawing piece 237 that extends from the inner surface portion 232 toward the inner peripheral side and abuts when the outer shoji 5 is closed.
The left vertical frame main body 230 has a hollow portion 234A surrounded by an inner surface portion 232, an outer surface portion 233, and connecting piece portions 2341 and 2342. As shown in FIG. In addition, the connecting piece portion 2341 is provided at a substantially central position in the direction of projection of the inner surface portion 232, and the hollow portion 234A is provided on the interior side of the outer shoji 5 in the direction of projection.
A plurality of holes 239 are formed along the vertical direction in a portion of the inner surface portion 232 facing the hollow portion 234A. A hole 239 is provided for inserting a screw 253 for fixing the new left vertical frame 23 .

縦枠アングル材231は、内面部232において外障子5よりも室内側を覆う位置に設けられ、左縦枠本体230において、外障子5を閉じた際に室内側に露出する室内露出面を覆っている。このため、内面部232においてホロー部234Aに面した部分も縦枠アングル材231で覆われるため、穴239も縦枠アングル材231で覆われている。このため、穴239を塞ぐキャップは取り付けられていない。 The vertical frame angle member 231 is provided at a position that covers the interior side of the exterior shoji 5 in the inner surface portion 232, and covers the indoor exposed surface that is exposed to the interior when the exterior shoji 5 is closed in the left vertical frame main body 230. ing. Therefore, since the portion of the inner surface portion 232 facing the hollow portion 234A is also covered with the vertical frame angle member 231, the hole 239 is also covered with the vertical frame angle member 231. Therefore, no cap is attached to close the hole 239 .

新設左縦枠23は、図7に示すように、アタッチメント33および縦カバー材43を介して既設左縦枠13に固定されている。
既設左縦枠13は、引寄せ片131、室外片133、室内片134を備えて構成されている。
アタッチメント33は、既設左縦枠13の種類に応じて形状が異なる複数種類が用意され、そこから選択されて用いられている。本実施形態のアタッチメント33は、断面が略コ字状の金属材であり、既設左縦枠13の上下方向(Z軸方向)のほぼ全長に渡って配置されている。このアタッチメント33は、既設左縦枠13の引寄せ片131と室外片133との間の見込み片に複数本のネジ331で固定されている。
なお、既設左縦枠13としては、室外片133、室内片134のみで引寄せ片が存在しないドブ溝タイプの既設枠であっても利用できる。また、アタッチメント33は、室内外の配置を逆にして、ネジ331で固定される部分が室内側に位置するように固定してもよい。
The new left vertical frame 23 is fixed to the existing left vertical frame 13 via an attachment 33 and a vertical cover member 43, as shown in FIG.
The existing left vertical frame 13 is configured with a drawing piece 131 , an outdoor piece 133 and an indoor piece 134 .
A plurality of types of the attachment 33 having different shapes are prepared according to the type of the existing left vertical frame 13, and the attachment 33 is selected and used. The attachment 33 of the present embodiment is a metal material having a substantially U-shaped cross section, and is arranged over substantially the entire length of the existing left vertical frame 13 in the vertical direction (Z-axis direction). This attachment 33 is fixed with a plurality of screws 331 to a prospective piece between the pulling piece 131 and the outdoor piece 133 of the existing left vertical frame 13 .
As the existing left vertical frame 13, it is possible to use an existing ditch type frame having only the outdoor piece 133 and the indoor piece 134 and no pulling piece. Also, the attachment 33 may be fixed so that the indoor/outdoor arrangement is reversed so that the portion fixed with the screw 331 is positioned on the indoor side.

縦カバー材43は、アルミ製の押出形材で構成され、既設左縦枠13に沿って上下方向(Z軸方向)に長尺な部材である。
縦カバー材43は、見込み片部431と、室内当接片432と、室外当接片433とを備えて構成されている。見込み片部431は、改装サッシ1の見込み方向(Y軸方向)に延長され、さらに室外側端部が外周側に延長された横断面が略L字板状の部分であり、アタッチメント33にネジ453で固定されている。
室内当接片432は、見込み片部431の室外側および外周側の端部から既設左縦枠13側つまり外周側に延出されている。
室外当接片433は、見込み片部431の室外側および外周側の端部から室外側に延出された室外延出部4331と、室外延出部4331から新設左縦枠23側つまり内周側に延出された室外見付け面部4332と、室外見付け面部4332から室内側に延出されて新設左縦枠23の室外面つまり室外片部235に当接する室外当接部4333とを備える。
The vertical cover member 43 is an extruded shape made of aluminum, and is a member elongated in the vertical direction (Z-axis direction) along the existing left vertical frame 13 .
The vertical cover member 43 is configured by including a prospective piece portion 431 , an indoor contact piece 432 and an outdoor contact piece 433 . The prospective piece 431 is a portion extending in the prospective direction (Y-axis direction) of the refurbished sash 1 and having a substantially L-shaped plate-like cross section with the outdoor end extending outward to the outer peripheral side. 453 is fixed.
The indoor contact piece 432 extends from the outdoor side and outer peripheral side end portions of the prospective piece portion 431 toward the existing left vertical frame 13 side, ie, the outer peripheral side.
The outdoor contact piece 433 is composed of an outdoor extension portion 4331 that extends to the outdoor side from the end portions of the projection piece portion 431 on the outdoor side and the outer peripheral side, and from the outdoor extension portion 4331 to the new left vertical frame 23 side, that is, the inner periphery. and an outdoor abutment portion 4333 extending from the exterior appearance surface portion 4332 toward the indoor side and abutting the outdoor surface of the new left vertical frame 23, that is, the outdoor piece portion 235.

室内当接片432の室外側端部には突条部が形成され、この突条部と室外当接片433との間の溝部分には水密材436が配置されている。室内当接片432は、前記突条部が室外片133の室内面に当接し、これにより縦カバー材43は見込み方向(Y軸方向)に位置決めされている。また、水密材436が室外片133に密着することで、室外片133および室内当接片432間の水密性を確保している。
室外当接部4333の室内側端部は、断面L字状の保持部とされ、この保持部には水密材437が保持されている。そして、室外当接部4333に室外片部235が当接することで、新設左縦枠23は見込み方向に位置決めされている。また、水密材437が室外片部235に密着することで、縦カバー材43および新設左縦枠23間の水密性を確保している。
A protrusion is formed on the outdoor side end of the indoor contact piece 432 , and a watertight material 436 is arranged in a groove portion between the protrusion and the outdoor contact piece 433 . The indoor contact piece 432 contacts the indoor surface of the outdoor piece 133 with the ridge portion, thereby positioning the vertical cover member 43 in the projection direction (Y-axis direction). In addition, the watertightness between the outdoor piece 133 and the indoor contact piece 432 is ensured by the watertight material 436 closely contacting the outdoor piece 133 .
The indoor end portion of the outdoor contact portion 4333 serves as a holding portion having an L-shaped cross section, and the watertight material 437 is held in this holding portion. The newly installed left vertical frame 23 is positioned in the projection direction by the contact of the outdoor piece portion 235 with the outdoor contact portion 4333 . Further, the watertightness between the vertical cover member 43 and the new left vertical frame 23 is ensured by the watertightness member 437 closely contacting the outdoor piece 235 .

縦カバー材43には、火災時に発泡して縦カバー材43と新設左縦枠23との間を塞ぐ加熱発泡材731が設けられている。
加熱発泡材731は、縦カバー材43の長手方向(上下方向)全長に渡って配置され、室外見付け面部4332の室内面に接着剤などで貼付されている。
The vertical cover member 43 is provided with a heating foam material 731 that foams in the event of a fire and closes the space between the vertical cover member 43 and the new left vertical frame 23 .
The heating foam material 731 is arranged over the entire length in the longitudinal direction (vertical direction) of the vertical cover member 43, and is attached to the interior surface of the exterior surface portion 4332 with an adhesive or the like.

縦カバー材43は、見込み片部431からアタッチメント33にねじ込まれるネジ453でアタッチメント33に取り付けられている。この際、縦カバー材43は、室外片133が室外延出部4331に当接することで、X軸方向に位置決めされる。このため、見込み片部431とアタッチメント33との間に隙間が形成され、この隙間にスペーサー631が配置されている。
新設左縦枠23は、縦カバー材43に対してスペーサー632を挟んで配置され、縦カバー材43にネジ253で固定されている。
スペーサー631、632は、短尺のピース材であり、新設左縦枠23の長手方向(Z軸方向)に間隔を空けて複数配置されている。
また、縦カバー材43をアタッチメント33に固定するネジ453は、Z軸方向において、スペーサー631と異なる位置に配置され、新設左縦枠23を縦カバー材43に固定するネジ253は、Z軸方向において、スペーサー631、632と異なる位置に配置されている。また、アタッチメント33には、ネジ253が挿通される穴が形成され、縦カバー材43にねじ込まれるネジ253がアタッチメント33に干渉しないように構成されている。なお、Z軸方向において、ネジ453はスペーサー631と同位置に配置してもよく、ネジ253はスペーサー631やスペーサー632と同位置に配置してもよい。
The vertical cover member 43 is attached to the attachment 33 with a screw 453 that is screwed into the attachment 33 from the projection piece portion 431 . At this time, the vertical cover member 43 is positioned in the X-axis direction by the contact of the outdoor piece 133 with the outdoor extension portion 4331 . Therefore, a gap is formed between the projection piece 431 and the attachment 33, and the spacer 631 is arranged in this gap.
The new left vertical frame 23 is arranged with a spacer 632 interposed with respect to the vertical cover member 43 and fixed to the vertical cover member 43 with screws 253 .
The spacers 631 and 632 are short piece materials, and are arranged in plurality in the longitudinal direction (Z-axis direction) of the new left vertical frame 23 at intervals.
Further, the screw 453 for fixing the vertical cover member 43 to the attachment 33 is arranged at a different position from the spacer 631 in the Z-axis direction, and the screw 253 for fixing the new left vertical frame 23 to the vertical cover member 43 is located at a different position in the Z-axis direction. , are arranged at positions different from those of the spacers 631 and 632 . Further, the attachment 33 is formed with a hole through which the screw 253 is inserted so that the screw 253 screwed into the vertical cover member 43 does not interfere with the attachment 33 . The screw 453 may be arranged at the same position as the spacer 631, and the screw 253 may be arranged at the same position as the spacer 631 and the spacer 632 in the Z-axis direction.

[縦遮炎金具]
既設左縦枠13の室内片134と新設左縦枠23の外面部233との間には、クリアランスが形成され、このクリアランスは、縦遮炎金具53によって塞がれている。
すなわち、新設左縦枠23の外面部233の室内側端部には、断面L字状に形成され、既設左縦枠13や新設左縦枠23の長手方向(Z軸方向)に沿って長尺とされた金属製の縦遮炎金具53が固定されている。
縦遮炎金具53は、既設左縦枠13の室内片134の室内面つまり室内側見付け面にネジ533で固定される見付け面部531と、新設左縦枠23の外面部233にネジ534で固定される見込み面部532とを有する。見付け面部531の上端部および下端部には、加熱発泡材75が貼付されている。
[Vertical flame shield bracket]
A clearance is formed between the interior piece 134 of the existing left vertical frame 13 and the outer surface portion 233 of the new left vertical frame 23 , and this clearance is blocked by the vertical flame shield fitting 53 .
That is, an L-shaped cross section is formed at the indoor-side end portion of the outer surface portion 233 of the new left vertical frame 23, and extends along the longitudinal direction (Z-axis direction) of the existing left vertical frame 13 and the new left vertical frame 23. A metal vertical flame shield 53 having a length is fixed.
The vertical flame shielding fittings 53 are fixed with screws 534 to the interior surface of the interior piece 134 of the existing left vertical frame 13 , that is, the interior surface, and to the exterior surface 233 of the new left vertical frame 23 . and a prospective surface portion 532 that is A heating foam material 75 is attached to the upper and lower ends of the viewing surface portion 531 .

[縦補強材]
新設左縦枠23のホロー部234A内には、縦補強材27が配置されている。縦補強材27は、外面部233に沿って配置された見込み面部271と、連結片部2341に沿って配置された室外見付け面部272と、連結片部2342に沿って配置された室内見付け面部273とを備えて断面コ字状に形成され、上下方向に連続する長尺の金属材である。
縦補強材27は、外面部233から見込み面部271にねじ込まれる複数のネジ274でホロー部234A内に固定されている。
見込み面部271において、ネジ253が配置される部分は穴が形成され、ネジ253の頭部は外面部233に接するように構成されている。
縦補強材27の室外見付け面部272と、見込み面部271とには、加熱発泡材732、733が貼付されている。
[Vertical reinforcement]
A vertical reinforcing member 27 is arranged in the hollow portion 234A of the newly installed left vertical frame 23 . The vertical reinforcing member 27 includes a projected surface portion 271 arranged along the outer surface portion 233, an outdoor facing surface portion 272 arranged along the connecting piece portion 2341, and an indoor facing surface portion 273 arranged along the connecting piece portion 2342. It is a long metal material that is formed in a U-shaped cross section and is continuous in the vertical direction.
The longitudinal reinforcing member 27 is fixed within the hollow portion 234A with a plurality of screws 274 that are screwed from the outer surface portion 233 into the projection surface portion 271. As shown in FIG.
A hole is formed in the projection surface portion 271 where the screw 253 is arranged, and the head portion of the screw 253 is configured to contact the outer surface portion 233 .
Heat foam materials 732 and 733 are attached to the exterior facing surface portion 272 and the projection surface portion 271 of the vertical reinforcing member 27 .

なお、外障子5の戸先框には、引寄せ片237に当接するガイドブロック91が配置され、ガイドブロック91の裏側には加熱発泡材771が配置されている。 A guide block 91 abutting on the drawing piece 237 is arranged on the door frame of the outer shoji 5 , and a heating foam material 771 is arranged on the back side of the guide block 91 .

[新設右縦枠]
新設右縦枠24は、図8に示すように、アルミ製の右縦枠本体240と、右縦枠本体240にネジ257で固定された樹脂製の縦枠アングル材241とを有している。縦枠アングル材241には、図2に示すように、アルミ製、樹脂製、木製等で構成される窓額縁84がねじ止めされている。
右縦枠本体240は、見込み方向(Y軸方向)に沿って形成された内面部242と、内面部242の外周側つまり既設右縦枠14側に設けられた外面部243と、内面部242および外面部243を連結する連結片部2441、2442と、内面部242の室外側端部から外周側に延出された室外片部245と、内面部242の室外側端部から内周側に延出された網戸ガイド片246と、内面部242から内周側に延出されて内障子6を閉めた際に当接する引寄せ片247とを備えている。
右縦枠本体240は、内面部242、外面部243、連結片部2441、2442で囲まれるホロー部244Aを有する。なお、連結片部2441は、内面部242の見込み方向の略中央位置に設けられており、ホロー部244Aは、見込み方向において外障子5よりも室内側であり、内障子6の室内側および室外側に跨がって設けられている。
内面部242において、ホロー部244Aに面した部分には、穴249が上下方向に沿って複数形成されている。穴249は、新設右縦枠24を固定するネジ254を挿通するために設けられている。この穴249は、樹脂製のキャップ266で塞がれている。
縦枠アングル材241は、右縦枠本体240において、内障子6を閉じた際に室内側に露出する室内露出面を覆っている。
[New right vertical frame]
As shown in FIG. 8, the new right vertical frame 24 has an aluminum right vertical frame main body 240 and a resin vertical frame angle material 241 fixed to the right vertical frame main body 240 with screws 257. . As shown in FIG. 2, a window frame 84 made of aluminum, resin, wood, or the like is screwed to the vertical frame angle member 241 .
The right vertical frame main body 240 includes an inner surface portion 242 formed along the projection direction (Y-axis direction), an outer surface portion 243 provided on the outer peripheral side of the inner surface portion 242, that is, the existing right vertical frame 14 side, and an inner surface portion 242. and connecting piece portions 2441 and 2442 that connect the outer surface portion 243, an outdoor piece portion 245 extending from the outdoor side end of the inner surface portion 242 to the outer peripheral side, and the inner peripheral side from the outdoor side end of the inner surface portion 242. It has an extended screen door guide piece 246 and a drawing piece 247 that extends from the inner surface portion 242 toward the inner peripheral side and abuts when the inner shoji 6 is closed.
The right vertical frame main body 240 has an inner surface portion 242 , an outer surface portion 243 , and a hollow portion 244 A surrounded by connecting piece portions 2441 and 2442 . In addition, the connecting piece portion 2441 is provided at a substantially central position in the projection direction of the inner surface portion 242, and the hollow portion 244A is located on the interior side of the outer shoji 5 in the projection direction, It is installed across the outside.
A plurality of holes 249 are formed along the vertical direction in the portion of the inner surface portion 242 facing the hollow portion 244A. A hole 249 is provided for inserting a screw 254 for fixing the new right vertical frame 24 . This hole 249 is closed with a cap 266 made of resin.
The vertical frame angle material 241 covers the indoor exposed surface exposed to the indoor side when the inner shoji 6 is closed in the right vertical frame main body 240 .

新設右縦枠24は、図8に示すように、アタッチメント34および縦カバー材44を介して既設右縦枠14に固定されている。
既設右縦枠14は、引寄せ片141、室外片143、室内片144を備えて構成されている。
アタッチメント34は、既設右縦枠14の種類に応じて形状が異なる複数種類が用意され、そこから選択されて用いられている。本実施形態のアタッチメント34は、アタッチメント33と同一の断面略コ字状の金属材であり、既設右縦枠14の上下方向のほぼ全長に渡って配置されている。このアタッチメント34は、既設右縦枠14の引寄せ片141と室外片143との間の見込み片に複数本のネジ341で固定されている。
なお、既設右縦枠14としては、室外片143、室内片144のみで引寄せ片が存在しないドブ溝タイプの既設枠であっても利用できる。また、アタッチメント34は、室内外の配置を逆にして、ネジ341で固定される部分が室内側に位置するように固定してもよい。
The new right vertical frame 24 is fixed to the existing right vertical frame 14 via an attachment 34 and a vertical cover member 44, as shown in FIG.
The existing right vertical frame 14 is composed of a drawing piece 141 , an outdoor piece 143 and an indoor piece 144 .
A plurality of types of attachments 34 having different shapes are prepared according to the type of the existing right vertical frame 14, and the attachments 34 are selected and used. The attachment 34 of the present embodiment is the same metal material with a substantially U-shaped cross section as the attachment 33, and is arranged over substantially the entire length of the existing right vertical frame 14 in the vertical direction. This attachment 34 is fixed by a plurality of screws 341 to a prospective piece between the pulling piece 141 and the outdoor piece 143 of the existing right vertical frame 14 .
As the existing right vertical frame 14, an existing frame of groove type with only the outdoor piece 143 and the indoor piece 144 and no attracting pieces can be used. Also, the attachment 34 may be fixed so that the indoor/outdoor arrangement is reversed so that the portion fixed with the screw 341 is positioned on the indoor side.

縦カバー材44は、縦カバー材43と同一の部品を左右反転させて用いたものであり、アルミ製の押出形材で構成され、既設右縦枠14に沿って上下方向(Z軸方向)に長尺な部材である。
縦カバー材44は、見込み片部441と、室内当接片442と、室外当接片443とを備えて構成されている。見込み片部441は、改装サッシ1の見込み方向(Y軸方向)に延長され、さらに室外側端部が外周側に延長された横断面が略L字板状の部分であり、アタッチメント34にネジ454で固定されている。
室内当接片442は、見込み片部441の室外側および外周側の端部から既設右縦枠14側つまり外周側に延出されている。
室外当接片443は、見込み片部441の室外側および外周側の端部から室外側に延出された室外延出部4431と、室外延出部4431から新設右縦枠24側つまり内周側に延出された室外見付け面部4432と、室外見付け面部4432から室内側に延出されて新設右縦枠24の室外面つまり室外片部245に当接する室外当接部4433とを備える。
The vertical cover member 44 is the same part as the vertical cover member 43 and used by reversing the left and right sides. It is a long member.
The vertical cover member 44 is configured by including a projection piece portion 441 , an indoor contact piece 442 and an outdoor contact piece 443 . The prospective piece 441 is a portion extending in the prospective direction (Y-axis direction) of the refurbished sash 1 and having a substantially L-shaped plate-like cross-section with the outdoor end extending to the outer peripheral side. 454 is fixed.
The indoor contact piece 442 extends from the outdoor side and outer peripheral side end portions of the projection piece portion 441 to the existing right vertical frame 14 side, that is, to the outer peripheral side.
The outdoor contact piece 443 is composed of an outdoor extension portion 4431 that extends to the outdoor side from the end portions of the projection piece portion 441 on the outdoor side and the outer peripheral side, and an outdoor extension portion 4431 that extends from the outdoor extension portion 4431 to the new right vertical frame 24 side, that is, the inner periphery. and an outdoor abutment portion 4433 that extends from the exterior appearance surface portion 4432 toward the indoor side and abuts the exterior surface of the new right vertical frame 24, that is, the exterior piece portion 245.

室内当接片442の室外側端部には突条部が形成され、この突条部と室外当接片443との間の溝部分には水密材446が配置されている。室内当接片442は、前記突条部が室外片143の室内面に当接し、これにより縦カバー材44は見込み方向(Y軸方向)に位置決めされている。また、水密材446が室外片143に密着することで、室外片143および室内当接片442間の水密性を確保している。
室外当接部4433の室内側端部は、断面L字状の保持部とされ、この保持部には水密材447が保持されている。そして、室外当接部4433に室外片部245が当接することで、新設右縦枠24は見込み方向に位置決めされている。また、水密材447が室外片部245に密着することで、縦カバー材44および新設右縦枠24間の水密性を確保している。
A protrusion is formed on the outdoor side end of the indoor contact piece 442 , and a watertight material 446 is arranged in the groove portion between this protrusion and the outdoor contact piece 443 . The indoor contact piece 442 contacts the indoor surface of the outdoor piece 143 with the ridge portion, thereby positioning the vertical cover member 44 in the perspective direction (Y-axis direction). In addition, the watertightness between the outdoor piece 143 and the indoor contact piece 442 is ensured by the watertight material 446 closely contacting the outdoor piece 143 .
The indoor end portion of the outdoor contact portion 4433 serves as a holding portion having an L-shaped cross section, and the watertight material 447 is held in this holding portion. Then, the newly installed right vertical frame 24 is positioned in the projection direction by abutting the outdoor piece portion 245 on the outdoor abutting portion 4433 . In addition, the watertightness between the vertical cover member 44 and the newly installed right vertical frame 24 is ensured by the watertightness member 447 adhering to the outdoor piece 245 .

縦カバー材44には、火災時に発泡して縦カバー材44と新設右縦枠24との間を塞ぐ加熱発泡材741が設けられている。
加熱発泡材741は、縦カバー材44の長手方向(上下方向)全長に渡って配置され、室外見付け面部4432の室内面に接着剤などで貼り付けられている。
The vertical cover member 44 is provided with a heating foam material 741 that foams in the event of a fire and closes the gap between the vertical cover member 44 and the new right vertical frame 24 .
The heating foam material 741 is arranged over the entire length in the longitudinal direction (vertical direction) of the vertical cover member 44, and is attached to the interior surface of the exterior surface portion 4432 with an adhesive or the like.

縦カバー材44は、見込み片部441からアタッチメント34にねじ込まれるネジ454でアタッチメント34に取り付けられている。この際、縦カバー材44は、室外片143が室外延出部4431に当接することで、X軸方向に位置決めされる。このため、見込み片部441とアタッチメント34との間に隙間が形成され、この隙間にスペーサー641が配置されている。
新設右縦枠24は、縦カバー材44に対してスペーサー642を挟んで配置され、縦カバー材44にネジ254で固定されている。
スペーサー641、642は、短尺のピース材であり、新設右縦枠24の長手方向(Z軸方向)に間隔を空けて複数配置されている。
また、縦カバー材44をアタッチメント34に固定するネジ454は、Z軸方向において、スペーサー641と異なる位置に配置され、新設右縦枠24を縦カバー材44に固定するネジ254は、Z軸方向において、スペーサー641、642と異なる位置に配置されている。また、アタッチメント34には、ネジ254が挿通される穴が形成され、縦カバー材44にねじ込まれるネジ254がアタッチメント34に干渉しないように構成されている。なお、Z軸方向において、ネジ454はスペーサー641と同位置に配置してもよく、ネジ254はスペーサー641やスペーサー642と同位置に配置してもよい。
The vertical cover member 44 is attached to the attachment 34 with a screw 454 screwed into the attachment 34 from the projection piece 441 . At this time, the vertical cover member 44 is positioned in the X-axis direction by the contact of the outdoor piece 143 with the outdoor extension portion 4431 . Therefore, a gap is formed between the prospective piece 441 and the attachment 34, and the spacer 641 is arranged in this gap.
The new right vertical frame 24 is arranged with a spacer 642 interposed with respect to the vertical cover member 44 and fixed to the vertical cover member 44 with screws 254 .
The spacers 641 and 642 are short piece materials, and are arranged in plurality in the longitudinal direction (Z-axis direction) of the new right vertical frame 24 at intervals.
In addition, the screw 454 for fixing the vertical cover member 44 to the attachment 34 is arranged at a different position from the spacer 641 in the Z-axis direction, and the screw 254 for fixing the newly installed right vertical frame 24 to the vertical cover member 44 is located in the Z-axis direction. , are arranged at positions different from those of the spacers 641 and 642 . Further, the attachment 34 is formed with a hole through which the screw 254 is inserted so that the screw 254 screwed into the vertical cover member 44 does not interfere with the attachment 34 . The screw 454 may be arranged at the same position as the spacer 641, and the screw 254 may be arranged at the same position as the spacer 641 and the spacer 642 in the Z-axis direction.

[縦遮炎金具]
既設右縦枠14の室内片144と新設右縦枠24の外面部243との間には、クリアランスが形成され、このクリアランスは、縦遮炎金具54によって塞がれている。
すなわち、新設右縦枠24の外面部243の室内側端部には、断面L字状に形成され、既設右縦枠14や新設右縦枠24の長手方向(Z軸方向)に沿って長尺とされた金属製の縦遮炎金具54が固定されている。
縦遮炎金具54は、縦遮炎金具53と同じ部品であり、既設右縦枠14の室内片144の室内面つまり室内側見付け面にネジ543で固定される見付け面部541と、新設右縦枠24の外面部243にネジ544で固定される見込み面部542とを有する。見付け面部541の上端部および下端部には、加熱発泡材76が貼付されている。
[Vertical flame shield bracket]
A clearance is formed between the interior piece 144 of the existing right vertical frame 14 and the outer surface portion 243 of the newly installed right vertical frame 24 , and this clearance is blocked by the vertical flame shield fitting 54 .
That is, at the indoor-side end of the outer surface portion 243 of the new right vertical frame 24, an L-shaped cross section is formed, extending along the longitudinal direction (Z-axis direction) of the existing right vertical frame 14 and the new right vertical frame 24. A metal vertical flame shield 54 having a length is fixed.
The vertical flame shielding fitting 54 is the same part as the vertical flame shielding fitting 53, and includes a facing surface portion 541 fixed to the indoor surface of the indoor piece 144 of the existing right vertical frame 14, that is, the indoor facing surface with screws 543, and a newly installed right vertical frame 541. It has a projected surface portion 542 fixed to the outer surface portion 243 of the frame 24 with a screw 544 . A heating foam material 76 is attached to the upper and lower ends of the viewing surface portion 541 .

[縦補強材]
新設右縦枠24のホロー部244A内には、縦補強材28が配置されている。縦補強材28は、外面部243に沿って配置された見込み面部281と、引寄せ片247の見込み方向の位置にほぼ沿った位置に配置された室外見付け面部282と、連結片部2442に沿って配置された室内見付け面部283とを備えて断面コ字状に形成され、上下方向に連続する長尺の金属材である。
縦補強材28は、外面部243から見込み面部281にねじ込まれる複数のネジ284でホロー部244A内に固定されている。このため、縦補強材28の見込み方向の寸法は、縦補強材27よりも短い寸法とされ、ホロー部244Aの見込み方向の室内側の略半分の領域に配置されている。
このため、ホロー部244A内は、室外見付け面部282によって室外空間および室内空間に区画されている。したがって、室外見付け面部282は、ホロー部244A内を区画する区画壁として機能する。なお、ホロー部244A内に縦補強材28を挿入配置するために、室外見付け面部282と内面部242との間には僅かなクリアランスが形成され、室外見付け面部282はホロー部244A内の空間を完全には区画していない。ただし、クリアランスのX軸方向の幅寸法が非常に小さいため、室外見付け面部282は、火の延焼を防止できる区画壁として機能する。
そして、穴249は、ホロー部244Aにおいて、区画壁である室外見付け面部282の室外側に配置された室外穴である。また、縦枠アングル材241を右縦枠本体240に固定するネジ257が螺合される穴は、ホロー部244Aにおいて、区画壁である室外見付け面部282の室内側に配置された室内穴である。
縦補強材28の室外見付け面部282の室外面には加熱発泡材742が貼付され、見込み面部281には加熱発泡材743が貼付されている。
[Vertical reinforcement]
A vertical reinforcing member 28 is arranged in the hollow portion 244A of the newly installed right vertical frame 24 . The longitudinal reinforcing member 28 includes a prospective surface portion 281 arranged along the outer surface portion 243, an exterior facing surface portion 282 arranged substantially along the position of the attracting piece 247 in the prospective direction, and a connecting piece portion 2442. It is an elongated metal member which is formed in a U-shaped cross section and which is continuous in the vertical direction.
The longitudinal stiffener 28 is fixed within the hollow portion 244A by a plurality of screws 284 screwed from the outer surface portion 243 into the projection surface portion 281. As shown in FIG. For this reason, the longitudinal reinforcing member 28 is shorter than the longitudinal reinforcing member 27 in the prospective direction, and is arranged in substantially half the region of the interior side of the hollow portion 244A in the prospective direction.
Therefore, the inside of the hollow portion 244A is divided into an outdoor space and an indoor space by the outdoor viewing surface portion 282. As shown in FIG. Therefore, the exterior facing surface portion 282 functions as a partition wall that partitions the inside of the hollow portion 244A. In order to insert the vertical reinforcing member 28 into the hollow portion 244A, a slight clearance is formed between the exterior surface portion 282 and the interior surface portion 242, and the exterior surface portion 282 fills the space inside the hollow portion 244A. not fully partitioned. However, since the width dimension of the clearance in the X-axis direction is very small, the exterior facing surface portion 282 functions as a partition wall capable of preventing the spread of fire.
The hole 249 is an outdoor hole arranged on the outdoor side of the outdoor facing surface portion 282, which is a partition wall, in the hollow portion 244A. The hole into which the screw 257 that fixes the vertical frame angle member 241 to the right vertical frame main body 240 is screwed is an indoor hole arranged on the indoor side of the outdoor viewing surface portion 282, which is a partition wall, in the hollow portion 244A. .
A heating foam material 742 is attached to the outdoor surface portion 282 of the longitudinal reinforcing member 28 , and a heating foam material 743 is attached to the projection surface portion 281 .

なお、内障子6の戸先框には、引寄せ片247に当接するガイドブロック92が配置され、ガイドブロック92の裏側には加熱発泡材772が配置されている。 A guide block 92 abutting on the drawing piece 247 is arranged on the door frame of the inner shoji 6 , and a heating foam material 772 is arranged on the back side of the guide block 92 .

[改装サッシの施工手順]
次に、改装サッシ1を施工する手順について、上カバー材41、新設上枠21の施工手順を図示する図9を参照して説明する。
最初に、既設枠10から既設の障子を取り外す。次に、既設枠10にアタッチメント31~34をネジ止めする。
次に、図9(A)に示すように、上カバー材41をアタッチメント31に取り付ける。同様に、図示を略すが、縦カバー材43,44をアタッチメント33、34に取り付ける。この際、室内当接片412,432,442を室外片113,133,143の室内面に当接させることで、上カバー材41、縦カバー材43,44の見込み方向の位置決めを行ってネジ止めする。
[Construction procedure for refurbished sashes]
Next, the procedure for constructing the refurbished sash 1 will be described with reference to FIG.
First, the existing shoji is removed from the existing frame 10 . Next, the attachments 31 to 34 are screwed to the existing frame 10 .
Next, as shown in FIG. 9A, the upper cover member 41 is attached to the attachment 31. Then, as shown in FIG. Similarly, although illustration is omitted, the vertical cover members 43 and 44 are attached to the attachments 33 and 34 . At this time, by bringing the indoor contact pieces 412, 432, and 442 into contact with the indoor surfaces of the outdoor pieces 113, 133, and 143, the upper cover member 41 and the vertical cover members 43 and 44 are positioned in the prospective direction, and the screws are screwed together. stop.

次に、図9(B)に示すように、工場等で予め枠組みした新設枠20を、室内側から既設枠10の開口部分に設置する。具体的には、新設枠20の新設下枠22をアタッチメント32の上に載置しながら、新設上枠21、新設左縦枠23、新設右縦枠24を、室外当接片413,433,443の室内面に当接させることで、新設上枠21、新設左縦枠23、新設右縦枠24の見込み方向の位置決めを行う。この際、各カバー材41,43,44と、新設上枠21、新設左縦枠23、新設右縦枠24との間にはクリアランスが確保されているので、新設枠20を既設枠10内に容易に設置できる。
そして、スペーサー61,632,642を、新設上枠21、新設左縦枠23、新設右縦枠24と、上カバー材41、縦カバー材43,44との間に配置する。以上により、新設枠20を見込み方向に位置決めし、さらにスペーサー61,632,642で新設枠20のX軸方向およびZ軸方向の位置決めを行った上で、新設枠20をネジ止めする。
Next, as shown in FIG. 9(B), a new frame 20 preliminarily framed at a factory or the like is installed at the opening of the existing frame 10 from the indoor side. Specifically, while placing the new bottom frame 22 of the new frame 20 on the attachment 32, the new top frame 21, the new left vertical frame 23, and the new right vertical frame 24 are attached to the outdoor contact pieces 413, 433, 443, the new upper frame 21, the new left vertical frame 23, and the new right vertical frame 24 are positioned in the prospective direction. At this time, since clearances are secured between the cover materials 41 , 43 , 44 and the new top frame 21 , the new left vertical frame 23 , and the new right vertical frame 24 , the new frame 20 is placed within the existing frame 10 . can be easily installed in
Spacers 61 , 632 , 642 are arranged between the new top frame 21 , the new left vertical frame 23 , the new right vertical frame 24 , the top cover member 41 and the vertical cover members 43 , 44 . As described above, the new frame 20 is positioned in the projection direction, and the new frame 20 is positioned in the X-axis direction and the Z-axis direction by the spacers 61, 632, and 642, and then the new frame 20 is screwed.

次に、図9(C)に示すように、新設上枠21、新設左縦枠23、新設右縦枠24に、上遮炎金具51、縦遮炎金具53,54をネジ止めする。さらに、予め枠組みした窓額縁81~84を、上枠アングル材211、下枠アングル材221、縦枠アングル材231、241にネジ止めする。
最後に、外障子5、内障子6、網戸7を新設枠20内に吊り込む。以上により、室内側からの作業のみで改装サッシ1の施工が完了する。
Next, as shown in FIG. 9C, the upper flame shield fitting 51 and the vertical flame shield fittings 53 and 54 are screwed to the newly installed upper frame 21, the newly installed left vertical frame 23, and the newly installed right vertical frame 24. Next, as shown in FIG. Further, the framed window frames 81 to 84 are screwed to the upper frame angle member 211, the lower frame angle member 221, and the vertical frame angle members 231, 241.
Finally, the outer shoji 5, the inner shoji 6, and the screen door 7 are hung in the new frame 20. - 特許庁As described above, construction of the refurbished sash 1 is completed only by the work from the inside of the room.

次に、改装サッシ1の防火構造について説明する。
[カバー材および遮炎金具による防火構造]
既設上枠11、既設左縦枠13、既設右縦枠14と、新設上枠21、新設左縦枠23、新設右縦枠24との間には、金属製(アルミ製)の上カバー材41、縦カバー材43,44が配置され、各カバー材41,43,44の室内当接片412,432,442を既設枠10の見付け片である室外片113,133,143の室内面に当接させ、室外当接片413,433,443を新設枠20の室外面である室外片部215,235,245に当接させている。このため、金属製のカバー材41,43,44は、既設枠10および新設枠20にそれぞれ当接して見込み方向に重なるため、既設枠10およびカバー材41,43,44間と、カバー材41,43,44および新設枠20間とで室内外方向に空間が連通することを防止し、火炎や煙がそれらの間を通過することで防火性能を確保している。また、新設下枠22は、段差があるアタッチメント32の高さ位置が異なる2つの面に載置されて当接され、アタッチメント32も既設下枠12の外レールと室内側端部との2箇所でネジ止めされているので、新設下枠22およびアタッチメント32間とアタッチメント32および既設下枠12間とで室内外方向に空間が連通することが防止され、下枠部分でも防火性能を確保している。
さらに、上カバー材41、縦カバー材43,44の室外当接片413、433,443には加熱発泡材711,712,731,741が貼付されている。これにより、火災時に加熱発泡材711,712,731,741が発泡することで、上カバー材41、縦カバー材43,44と、新設上枠21、新設左縦枠23、新設右縦枠24との間を塞ぐことができ、これらの間から火炎やガスが流入することをさらに防止して防火性能を確保している。
また、既設上枠11、既設左縦枠13、既設右縦枠14と、新設上枠21、新設左縦枠23、新設右縦枠24との室内側のクリアランスを上遮炎金具51、縦遮炎金具53,54で塞いでいるので、前記クリアランスから火炎やガスが流入することを防止して防火性能を確保している。
さらに、上遮炎金具51は、新設枠20の外法寸法(X軸方向の寸法)よりも長い横材とされ、図10にも示すように、その両端部は、縦遮炎金具53,54の上端の小口である端面535に所定間隔離れて対向する位置まで延長されている。そして、縦遮炎金具53,54の上端部には、加熱発泡材75、76が設けられており、火災時には、加熱発泡材75,76が発泡し、上遮炎金具51および縦遮炎金具53,54間のクリアランスを塞ぐことができる。
また、縦遮炎金具53,54の下端部にも加熱発泡材75,76が貼付されているので、縦遮炎金具53,54の下端部と既設下枠12との間のクリアランスも塞ぐことができる。
これらの防火構造により、室内側で火災が発生した場合は、上遮炎金具51、縦遮炎金具53,54および発泡した加熱発泡材75,76によって、既設上枠11、既設左縦枠13、既設右縦枠14と、新設上枠21、新設左縦枠23、新設右縦枠24との室内側のクリアランスから、既設枠10と新設枠20との間に火炎が流入することを防止できる。
さらに、上遮炎金具51、縦遮炎金具53,54部分から既設枠10と新設枠20との間に火炎が流入しても、上カバー材41、縦カバー材43,44が既設枠10および新設枠20に見込み方向に重なった状態で当接し、さらに上カバー材41、縦カバー材43,44に貼付した加熱発泡材711,712,731,741が発泡してその空間を塞ぐため、室内火災の火炎が改装サッシ1を通って室外側に達することを防止できる。
同様に、室外火災が発生した場合も、上カバー材41、縦カバー材43,44と、加熱発泡材711,712,731,741と、上遮炎金具51、縦遮炎金具53,54とで遮炎ラインが形成されるため、室外火災の火炎が改装サッシ1を通って室内側に達することを防止できる。
Next, the fireproof structure of the modified sash 1 will be described.
[Fireproof structure with cover material and flame shielding fittings]
Between the existing upper frame 11, the existing left vertical frame 13, the existing right vertical frame 14, and the new upper frame 21, the new left vertical frame 23, and the new right vertical frame 24, a metal (aluminum) upper cover material 41, vertical cover members 43, 44 are arranged, and the indoor contact pieces 412, 432, 442 of the respective cover members 41, 43, 44 are attached to the indoor surfaces of the outdoor pieces 113, 133, 143, which are the facing pieces of the existing frame 10. The outdoor contact pieces 413 , 433 and 443 are brought into contact with the outdoor piece portions 215 , 235 and 245 which are the outdoor surfaces of the new frame 20 . For this reason, the metal cover members 41, 43, and 44 are in contact with the existing frame 10 and the new frame 20, respectively, and are overlapped in the prospective direction. , 43, 44 and the new frame 20 are prevented from being communicated with each other in the indoor and outdoor directions, and flame and smoke pass between them to ensure fire prevention performance. In addition, the new lower frame 22 is placed and abutted on two surfaces of the attachment 32 having a stepped portion with different height positions. , the space between the newly installed lower frame 22 and the attachment 32 and between the attachment 32 and the existing lower frame 12 is prevented from communicating in the indoor and outdoor directions, and fireproof performance is ensured even in the lower frame portion. there is
Further, heating foam materials 711, 712, 731 and 741 are attached to the outdoor contact pieces 413, 433 and 443 of the upper cover member 41 and vertical cover members 43 and 44, respectively. As a result, the heating foam materials 711, 712, 731, 741 are foamed in the event of a fire, and the upper cover member 41, the vertical cover members 43, 44, the newly installed upper frame 21, the newly installed left vertical frame 23, and the newly installed right vertical frame 24 It is possible to close the gap between the two, further preventing flames and gas from flowing in from the gap, thereby ensuring fire prevention performance.
In addition, the clearance between the existing top frame 11, the existing left vertical frame 13, the existing right vertical frame 14, and the new top frame 21, the new left vertical frame 23, and the new right vertical frame 24 is increased by the flame shield fittings 51, the vertical Since the flame shielding metal fittings 53 and 54 are closed, flame and gas are prevented from flowing through the clearance, thereby ensuring fire prevention performance.
Furthermore, the upper flame shield fitting 51 is a horizontal member longer than the outer dimension (dimension in the X-axis direction) of the new frame 20, and as shown in FIG. It extends to a position opposed to an end surface 535, which is the edge of the upper end of 54, at a predetermined distance. Heated foam materials 75 and 76 are provided at the upper ends of the vertical flame shield fittings 53 and 54, and in the event of a fire, the heated foam materials 75 and 76 foam to form the upper flame shield fitting 51 and the vertical flame shield fitting. The clearance between 53 and 54 can be closed.
In addition, since the heating foam materials 75 and 76 are attached to the lower ends of the vertical flame shielding fittings 53 and 54, the clearance between the lower ends of the vertical flame shielding fittings 53 and 54 and the existing lower frame 12 must also be closed. can be done.
Due to these fire prevention structures, if a fire breaks out inside the room, the existing upper frame 11 and the existing left vertical frame 13 are protected by the upper flame shield fitting 51, the vertical flame shield fittings 53 and 54, and the foamed heating foam materials 75 and 76. Flame is prevented from flowing between the existing right vertical frame 14 and the new upper frame 21, the new left vertical frame 23, and the new right vertical frame 24 from the clearance inside the room between the existing frame 10 and the new frame 20. can.
Furthermore, even if flames flow between the existing frame 10 and the new frame 20 from the upper flame shielding fitting 51 and the vertical flame shielding fittings 53 and 54, the upper cover member 41 and the vertical cover members 43 and 44 will still remain on the existing frame 10. and the new frame 20 in a state of being overlapped in the prospective direction, and further, the heating foam materials 711, 712, 731, 741 attached to the upper cover member 41 and the vertical cover members 43, 44 are foamed to block the space, Flames of an indoor fire can be prevented from reaching the outdoor side through the modified sash 1. - 特許庁
Similarly, when an outdoor fire occurs, the upper cover member 41, vertical cover members 43, 44, heating foam members 711, 712, 731, 741, upper flame shield metal fitting 51, and vertical flame shield metal fittings 53, 54 Since a flame shielding line is formed by , it is possible to prevent the flame of an outdoor fire from reaching the room through the refurbished sash 1. - 特許庁

[新設上枠のホロー部の防火構造]
新設上枠21の第1ホロー部214Aは、図3~図6に示すように、新設上枠21の長手方向(X軸方向)に連続して形成され、第1下面部212Aには穴219が長手方向に所定間隔を空けて形成されている。これらの穴219のうち、風止め板80が配置される召合せ位置を挟んだ2つの穴219は、比較的近い位置に形成され、かつ、外障子5および内障子6で区画される室外空間および室内空間にそれぞれ配置されている。このため、火災時に火炎や煙が一方の空間から、その空間に連通する穴219、第1ホロー部214A、他方の穴219を介した他方の空間に達する可能性がある。
本実施形態では、これらの2つの穴219を、塞ぎ材26で塞いでいるので火炎を遮断できる。
なお、新設上枠21の左右2箇所の穴219は、樹脂製のキャップ265で塞いでいるため、火災時にキャップ265が焼失する可能性があるが、キャップ265で塞がれた室外空間に配置された穴219と、室内空間に配置された穴219との距離は、塞ぎ材26で塞がれた召合せ位置を挟む2つの穴219に比べて長いため、防火性能の確保に必要な一定時間であれば、これらの穴219および第1ホロー部214Aを介して一方の空間から他方の空間に火炎や煙が達することはないため、防火性能を低下させることはない。
[Fire prevention structure of the hollow part of the new upper frame]
As shown in FIGS. 3 to 6, the first hollow portion 214A of the new upper frame 21 is formed continuously in the longitudinal direction (X-axis direction) of the new upper frame 21, and a hole 219 is formed in the first lower surface portion 212A. are formed at predetermined intervals in the longitudinal direction. Of these holes 219, the two holes 219 sandwiching the meeting position where the wind stop plate 80 is arranged are formed relatively close to each other, and the outdoor space defined by the outer shoji 5 and the inner shoji 6 is formed. and are placed in the interior space, respectively. Therefore, in the event of a fire, flames and smoke may reach the other space from one space through the hole 219 communicating with the space, the first hollow portion 214A, and the other hole 219 .
In this embodiment, these two holes 219 are closed with the plugging material 26, so flames can be blocked.
Since the two holes 219 on the left and right of the newly installed upper frame 21 are closed with caps 265 made of resin, there is a possibility that the caps 265 may be destroyed in the event of a fire. The distance between the hole 219 and the hole 219 arranged in the indoor space is longer than the two holes 219 sandwiching the meeting position blocked by the blocking material 26, so the constant distance required to ensure fireproof performance is If it is time, flames and smoke will not reach from one space to the other space via these holes 219 and first hollow portion 214A, so the fire prevention performance will not be reduced.

[新設右縦枠のホロー部の防火構造]
新設右縦枠24のホロー部244Aは、図11にも示すように、見込み方向において、内障子6の室内外に跨がって配置され、火災時に樹脂製のキャップ266が焼失したり、ネジ257が外れたりすると、ホロー部244A内が内障子6の室外空間および室内空間と連通する可能性がある。この場合、ホロー部244Aを通して室内から室外あるいは室外から室内に火炎が達する可能性がある。
これに対し、ホロー部244A内に縦補強材28を配置し、その室外見付け面部282で、ホロー部244Aを室外空間および室内空間に区画しているので、区画壁として機能する室外見付け面部282で火炎を遮ることができる。
さらに、縦補強材28に、加熱発泡材742、743を貼付しているので、火災時には加熱発泡材742、743が発泡し、ホロー部244A内の空間や穴249等を塞ぐことができる。これにより、火炎を確実に遮ることができる。
さらに、加熱発泡材742、743が縦補強材28の全長に渡って貼付されているので、ホロー部244Aの上下の小口から火炎が侵入することも防止できる。
[Fire prevention structure of the hollow part of the new right vertical frame]
As shown in FIG. 11, the hollow portion 244A of the newly installed right vertical frame 24 is arranged to straddle the interior and exterior of the inner shoji 6 in the direction of projection. If 257 comes off, the inside of hollow part 244A may connect with the outdoor space of inner shoji 6, and indoor space. In this case, there is a possibility that the flame may reach from the indoor to the outdoor or from the outdoor to the indoor through the hollow portion 244A.
On the other hand, the vertical reinforcing member 28 is arranged in the hollow portion 244A, and the hollow portion 244A is partitioned into the outdoor space and the indoor space by the outdoor viewing surface portion 282 thereof. Can block fire.
Furthermore, since the heating foam materials 742 and 743 are attached to the vertical reinforcing member 28, the heating foam materials 742 and 743 are foamed in the event of a fire to block the space inside the hollow portion 244A and the holes 249 and the like. As a result, flames can be reliably blocked.
Furthermore, since the heating foam members 742 and 743 are attached over the entire length of the vertical reinforcing member 28, it is possible to prevent flames from entering through the upper and lower edges of the hollow portion 244A.

[新設左縦枠のホロー部の防火構造]
新設左縦枠23のホロー部234Aは、図7に示すように、見込み方向において、外障子5の室内側に配置されているため、火災時にホロー部234Aを介して火炎が室内および室外に到達することはないが、上下の小口から火炎が侵入する可能性がある。火災時には、縦補強材27に貼付した加熱発泡材732、733が発泡するため、小口からの火炎の侵入を防止できる。
[Fire prevention structure of the hollow part of the new left vertical frame]
As shown in FIG. 7, the hollow part 234A of the newly installed left vertical frame 23 is arranged on the indoor side of the outside shoji 5 in the prospective direction, so in the event of a fire, the flame reaches the room and the outside through the hollow part 234A. However, flames may enter from the upper and lower small openings. In the event of a fire, the heating foam materials 732 and 733 attached to the longitudinal reinforcing member 27 foam, so that flames can be prevented from entering from the forehead.

[新設枠および障子の防火構造]
なお、新設枠20と外障子5、内障子6との間や、外障子5、内障子6内での防火構造は、新設枠20や、外障子5、内障子6に加熱発泡材を配置することで実現されている。例えば、外障子5、内障子6の戸先框のガイドブロック91、92が焼失した場合、加熱発泡材771、772が発泡し、新設左縦枠23、新設右縦枠24との隙間を塞ぐことができる。これらの防火構造は、一般的な防火仕様のサッシと同様であるため、説明を省略する。
[Fire prevention structure of new frames and shoji screens]
In addition, for the fire prevention structure between the new frame 20 and the outer shoji 5 and inner shoji 6 and within the outer shoji 5 and inner shoji 6, heat foaming materials are placed in the new frame 20, outer shoji 5 and inner shoji 6. It is realized by For example, when the guide blocks 91 and 92 of the door frame of the outer shoji 5 and the inner shoji 6 are destroyed by fire, the heated foam materials 771 and 772 are foamed to close the gap between the newly installed left vertical frame 23 and the newly installed right vertical frame 24. be able to. Since these fireproof structures are the same as those of general fireproof sashes, their description is omitted.

[実施形態の作用効果]
本実施形態によれば、新設右縦枠24のホロー部244A内に縦補強材28を配置し、縦補強材28の室外見付け面部282を区画壁として機能させることができ、ホロー部244Aを、室外穴である穴249に連通する室外空間と、ネジ257が螺合される室内穴に連通する室内空間とに区画できる。このため、室外穴に連通する室外空間と、室内穴に連通する室内空間との一方に火炎が入っても、その火炎が他方の空間に達することを防止できる。このため、内障子6の室内外の一方の空間から他方の空間に火炎や煙が到達することを防止でき、防火性能を向上できる。
[Action and effect of the embodiment]
According to this embodiment, the vertical reinforcing member 28 can be arranged in the hollow portion 244A of the newly installed right vertical frame 24, and the exterior facing surface portion 282 of the vertical reinforcing member 28 can function as a partition wall, and the hollow portion 244A can be It can be divided into an outdoor space communicating with the hole 249 which is an outdoor hole and an indoor space communicating with the indoor hole into which the screw 257 is screwed. Therefore, even if a flame enters one of the outdoor space communicating with the outdoor hole and the indoor space communicating with the indoor hole, the flame can be prevented from reaching the other space. Therefore, it is possible to prevent flames and smoke from reaching the other space from one of the indoor and outdoor spaces of the inner shoji 6, thereby improving the fire prevention performance.

新設上枠21には、見込み方向において、内障子6の室外側に配置される第1ホロー部214Aと、室内側に配置される第2ホロー部214Bとが設けられ、これらを区画する区画壁として連結片部2142が設けられている。このため、火災時にキャップ265が焼失し、火炎が穴219から第1ホロー部214Aに到達しても、区画壁である連結片部2142で遮炎され、第2ホロー部214Bに到達することを防止できるため、防火性能を向上できる。 The new upper frame 21 is provided with a first hollow portion 214A arranged on the outdoor side of the inner shoji 6 and a second hollow portion 214B arranged on the indoor side in the projection direction, and a partition wall partitioning these. A connecting piece portion 2142 is provided as a. Therefore, even if the cap 265 is destroyed by fire and the flame reaches the first hollow portion 214A through the hole 219, the flame is blocked by the connecting piece portion 2142, which is the partition wall, so that the flame does not reach the second hollow portion 214B. Since it can be prevented, the fire prevention performance can be improved.

新設枠20の新設左縦枠23および新設右縦枠24には、ホロー部234A,244Aを形成したので、新設左縦枠23、新設右縦枠24の強度、つまりは新設枠20の強度を向上できる。
また、新設上枠21にも第1ホロー部214A、第2ホロー部214Bを形成し、新設下枠22にも補強材29が配置されるホロー部を形成したので、新設枠20の強度をさらに向上できる。
このため、躯体2に直接固定できない改装サッシ1用の新設枠20として必要な強度を確保できる。さらに、ホロー部234A,244A内に縦補強材27、28を配置しているので、新設枠20の強度をさらに向上することができる。
また、ホロー部244A内に配置した縦補強材28で区画壁を形成しているので、区画壁を構成する部材と補強用の部材とを別々に設ける場合に比べて、コストを低減できる。
Since the hollow portions 234A and 244A are formed in the new left vertical frame 23 and the new right vertical frame 24 of the new frame 20, the strength of the new left vertical frame 23 and the new right vertical frame 24, that is, the strength of the new frame 20 is increased. can improve.
In addition, since the newly installed upper frame 21 is also formed with the first hollow portion 214A and the second hollow portion 214B, and the newly installed lower frame 22 is also formed with the hollow portion in which the reinforcing member 29 is arranged, the strength of the newly installed frame 20 is further increased. can improve.
Therefore, the strength required for the new frame 20 for the refurbished sash 1 that cannot be directly fixed to the frame 2 can be ensured. Furthermore, since the vertical reinforcing members 27 and 28 are arranged in the hollow portions 234A and 244A, the strength of the new frame 20 can be further improved.
In addition, since the vertical reinforcing member 28 arranged in the hollow portion 244A forms the partition wall, the cost can be reduced as compared with the case where the member constituting the partition wall and the reinforcing member are provided separately.

穴249を利用して、ホロー部244Aを縦カバー材44に固定するネジ254をネジ込むことができるので、ネジ254の頭部をホロー部244A内に配置でき、ネジ254が窓枠内周側に露出することも防止できる。 Since the screw 254 for fixing the hollow portion 244A to the vertical cover member 44 can be screwed in using the hole 249, the head of the screw 254 can be arranged in the hollow portion 244A, and the screw 254 is positioned on the inner peripheral side of the window frame. can also prevent exposure to

縦補強材28に、ホロー部244A内の室外空間で発泡する加熱発泡材742と、室内空間で発泡する加熱発泡材743とを設けたので、区画壁となる室外見付け面部282による遮炎に加えて加熱発泡材742,743が空間に充填することによっても火炎を遮炎できるので、防火性能をより向上できる。
加熱発泡材742,743を予め貼付した縦補強材28をホロー部244A内に配置しているので、ホロー部244A内に加熱発泡材742,743を直接設ける場合に比べて、加熱発泡材742,743を容易に配置できる。
同様に、縦補強材27にも加熱発泡材732,733を予め貼付してホロー部234A内に配置しているので、加熱発泡材732,733を容易に配置できる。
The vertical reinforcing member 28 is provided with the heating foam material 742 that foams in the outdoor space inside the hollow portion 244A and the heating foam material 743 that foams in the indoor space. Also, by filling the space with the heating foam materials 742 and 743, the flame can be blocked, so that the fire prevention performance can be further improved.
Since the vertical reinforcing member 28 to which the heating foaming materials 742 and 743 are attached in advance is arranged in the hollow portion 244A, the heating foaming members 742 and 743 are more effective than the case where the heating foaming members 742 and 743 are directly provided in the hollow portion 244A. 743 can be easily deployed.
Similarly, since the heating foam materials 732 and 733 are attached to the longitudinal reinforcing member 27 in advance and arranged in the hollow portion 234A, the heating foam materials 732 and 733 can be easily arranged.

室外見付け面部282は、見込み方向の位置が引寄せ片247とほぼ同じ位置であるため、内障子6を閉めた際に引寄せ片247に力が加わって見込み面である内面部242が撓んだ場合に、室外見付け面部282に当接して、前記力を受けることができ、新設右縦枠24が変形することを防止できる。
新設左縦枠23では、ホロー部234A内に配置される縦補強材27の室外見付け面部272を、ホロー部234Aの最も室外側である連結片部2341に沿って配置しているので、外障子5を閉めた際に引寄せ片237に加わる力を縦補強材27で受けることができ、新設左縦枠23の変形を防止できる。
Since the position of the exterior viewing surface portion 282 in the direction of projection is substantially the same as that of the pulling piece 247, when the inner shoji 6 is closed, force is applied to the pulling piece 247 and the inner surface portion 242, which is the projection surface, bends. In this case, it abuts against the exterior facing surface portion 282 and receives the force, thereby preventing the newly installed right vertical frame 24 from being deformed.
In the new left vertical frame 23, the exterior facing surface portion 272 of the vertical reinforcing member 27 arranged in the hollow portion 234A is arranged along the connecting piece portion 2341, which is the outermost outdoor side of the hollow portion 234A. The vertical reinforcing member 27 can receive the force applied to the pulling piece 237 when the door 5 is closed, and the deformation of the new left vertical frame 23 can be prevented.

[変形例]
本発明は、前記実施形態の引違い窓に限定されず、上げ下げ窓、片引き窓、片上げ下げ窓、開き窓、すべり出し窓等の様々な窓種の改装サッシに適用できる。すなわち、既設枠10の窓種に応じてアタッチメント31~34を選択し、新設枠20の窓種に応じて上カバー材41、縦カバー材43,44を選択することで、既設枠10の窓種に関係無く、様々な窓種の新設枠20を設置することができる。
[Modification]
The present invention is not limited to the double sliding window of the above embodiment, and can be applied to refurbished sashes of various window types such as a double-hung window, a single-hinged sliding window, a single-hung-hung window, a casement window, and a sliding window. That is, by selecting the attachments 31 to 34 according to the window type of the existing frame 10 and selecting the upper cover material 41 and vertical cover materials 43 and 44 according to the window type of the new frame 20, the window of the existing frame 10 is The new frame 20 can be installed for various window types regardless of the type.

縦補強材28は、断面コ字状のものに限定されず、例えば、見込み面部281と、室外見付け面部282とを有する断面L字状の補強材でもよい。
また、区画壁は、縦補強材28の室外見付け面部282で構成されるものに限定されず、縦補強材28を室外側に配置して、室内見付け面部283で区画壁を構成してもよい。
The longitudinal reinforcing member 28 is not limited to having a U-shaped cross section, and may be, for example, a reinforcing member having an L-shaped cross section having a projected surface portion 281 and an exterior facing surface portion 282 .
Further, the partition wall is not limited to the one composed of the exterior facing surface portion 282 of the vertical reinforcing member 28, and the vertical reinforcing member 28 may be arranged on the outdoor side and the interior facing surface portion 283 may constitute the partition wall. .

区画壁は、縦補強材28で構成されるものに限定されない。例えば、新設右縦枠24に、新設上枠21と同様に、室内外の2つのホロー部を形成し、室外側のホロー部に室外穴である穴249を連通し、室内側のホロー部に室内穴を連通させ、2つのホロー部を区画する連結片部を区画壁として用いてもよい。 The partition walls are not limited to those composed of the vertical reinforcing members 28 . For example, the new right vertical frame 24 is formed with two indoor and outdoor hollow portions in the same manner as the newly installed upper frame 21, and the outdoor hollow portion communicates with the hole 249, which is an outdoor hole. You may use the connection piece part which makes an indoor hole communicate and divides two hollow parts as a partition wall.

前記実施形態では、縦補強材28に2つの加熱発泡材742,743を設けていたが、加熱発泡材742または加熱発泡材743の一方のみを設けてもよい。また、縦補強材28に加熱発泡材742,743を設けていたが、ホロー部244Aの内面に加熱発泡材742,743を貼付して設けてもよい。
また、ホロー部244A内を区画する区画壁を設けることで火炎を遮炎できるため、ホロー部244A内で発泡する加熱発泡材は必ずしも設けなくてもよい。
In the above-described embodiment, the two heating foam members 742 and 743 are provided in the longitudinal reinforcing member 28, but only one of the heating foam member 742 and the heating foam member 743 may be provided. Moreover, although the heating foam materials 742 and 743 are provided on the vertical reinforcing member 28, the heating foam materials 742 and 743 may be attached and provided on the inner surface of the hollow portion 244A.
Further, since the flame can be blocked by providing a partition wall for partitioning the inside of the hollow portion 244A, it is not always necessary to provide the heating and foaming material that foams inside the hollow portion 244A.

新設左縦枠23において、連結片部2341の見込み方向の位置を引寄せ片237の位置に合わせることでホロー部234Aの見込み寸法や縦補強材27の見込み寸法を大きくしてもよい。このように構成すれば、引寄せ片237に加わる力をより受けることができ、新設左縦枠23の強度もより向上できる。 In the new left vertical frame 23, the projected dimension of the hollow portion 234A and the projected dimension of the vertical reinforcing member 27 may be increased by aligning the position of the connecting piece portion 2341 in the projected direction with the position of the attracting piece 237. FIG. With this configuration, the force applied to the pulling piece 237 can be received more, and the strength of the new left vertical frame 23 can be further improved.

なお、前記実施形態の塞ぎ材26は、改装サッシ1における防火サッシの新設上枠21の穴219を塞ぐ用途に用いられるものに限定されず、図12に示すように、建物の躯体2Bに直接取り付けられる防火サッシの新設上枠21Bの穴219Bを塞ぐ用途に用いてもよい。
同様に、図示は省略するが、新設右縦枠24のホロー部244A内に、縦補強材28等で区画壁を設ける構造や、配置する縦補強材28に加熱発泡材742、743を貼付する構造は、改装用の防火サッシの新設枠20を構成する新設右縦枠24に限定されず、建物の躯体に直接取り付けられる防火サッシの新設枠20に用いてもよい。さらに、補強材で区画壁を構成する構造や加熱発泡材を配置する構造は、新設右縦枠24に限定されず、新設左縦枠23において外障子5の室外側および室内側に跨がるホロー部を設けた場合にも適用できる。すなわち、本発明は、縦枠において、障子を閉めた際にその障子の室内外に跨がるホロー部を有する場合に適用できる。さらに、縦枠に限定されず、例えば、上げ下げ窓の上枠のように、見込み方向において、閉鎖した障子の室外側および室内側に跨がって設けられるホロー部を有し、さらに、そのホロー部に障子の室外空間に連通する室外穴と、室内空間に連通する室内穴とが形成されている場合に用いることができる。
The plugging material 26 of the above-described embodiment is not limited to the one used for plugging the hole 219 of the newly installed upper frame 21 of the fireproof sash in the refurbished sash 1. As shown in FIG. It may be used for closing the hole 219B of the newly installed upper frame 21B of the fireproof sash to be attached.
Similarly, although illustration is omitted, in the hollow portion 244A of the newly installed right vertical frame 24, a partition wall is provided with a vertical reinforcing member 28 or the like, and heating foam members 742 and 743 are attached to the vertical reinforcing member 28 to be arranged. The structure is not limited to the newly installed right vertical frame 24 constituting the newly installed frame 20 of the fireproof sash for renovation, but may be used for the newly installed frame 20 of the fireproof sash directly attached to the frame of the building. Furthermore, the structure of dividing walls with reinforcing materials and the structure of arranging the heated foam material are not limited to the new right vertical frame 24, but are straddled on the outdoor side and the indoor side of the outside shoji 5 in the new left vertical frame 23. It can also be applied when a hollow portion is provided. That is, the present invention can be applied to a case where the vertical frame has a hollow portion extending over the interior and exterior of the shoji when the shoji is closed. Furthermore, it is not limited to the vertical frame, for example, like the upper frame of a hanging window, it has a hollow part provided across the outdoor side and the indoor side of the closed shoji in the prospective direction, and further, the hollow It can be used when an outdoor hole that communicates with the outdoor space of the shoji and an indoor hole that communicates with the indoor space are formed in the part.

[本発明のまとめ]
本発明は、窓枠と、障子とを備える防火サッシであって、前記窓枠の縦枠および横枠のうち少なくとも一つの枠は、障子を閉めた際に、見込み方向において、障子の室外側から室内側に跨って配置されるホロー部を有する枠材で構成され、前記枠材の障子に対向する見込み面には、見込み方向において、前記障子の室外側の位置で前記ホロー部に連通する室外穴と、前記障子の室内側の位置で前記ホロー部に連通する室内穴とが形成され、前記ホロー部内には、前記室外穴に連通する室外空間と、前記室内穴に連通する室内空間とを区画する区画壁が設けられていることを特徴とする。
本発明によれば、窓枠の縦枠および横枠のうち少なくとも一つの枠はホロー部を有する枠材で構成されるため、ホロー部を有さない場合に比べて窓枠の強度を向上できる。このため、躯体に直接固定できない改装サッシ用の新設枠として用いる場合でも必要な強度を確保できる。
また、障子の室外側および室内側でそれぞれホロー部に連通する室外穴および室内穴が、枠材の見込み面に形成されていても、ホロー部内に区画壁を設けているので、ホロー部内の室外穴に連通する室外空間と、室内穴に連通する室内空間との一方に火炎が入っても、その火炎が他方の空間に達することを防止できる。このため、障子の室内外の一方の空間から他方の空間に火炎や煙が到達することを防止でき、防火性能を向上できる。
[Summary of the present invention]
The present invention is a fireproof sash comprising a window frame and a shoji, wherein at least one of the vertical frame and the horizontal frame of the window frame is positioned on the outdoor side of the shoji in the perspective direction when the shoji is closed. It is composed of a frame member having a hollow portion arranged across the interior side of the room, and the projection surface of the frame member facing the shoji is communicated with the hollow portion at a position on the outdoor side of the shoji in the projection direction. An outdoor hole and an indoor hole communicating with the hollow portion are formed at a position on the indoor side of the shoji, and the hollow portion includes an outdoor space communicating with the outdoor hole and an indoor space communicating with the indoor hole. is provided with a partition wall that partitions the
According to the present invention, since at least one of the vertical frame and the horizontal frame of the window frame is composed of a frame material having a hollow portion, the strength of the window frame can be improved as compared with a case without the hollow portion. . Therefore, even when used as a new frame for refurbished sashes that cannot be fixed directly to the building frame, the required strength can be ensured.
In addition, even if an outdoor hole and an indoor hole that communicate with the hollow part on the outdoor side and the indoor side of the shoji are formed in the prospective surface of the frame material, since the partition wall is provided in the hollow part, Even if a flame enters one of the outdoor space communicating with the hole and the indoor space communicating with the indoor hole, the flame can be prevented from reaching the other space. Therefore, it is possible to prevent flames and smoke from reaching the other space from one of the indoor and outdoor spaces of the shoji, thereby improving the fire prevention performance.

本発明の防火サッシにおいて、前記ホロー部内には金属製の補強材が配置され、前記区画壁は前記補強材で構成されていることが好ましい。
本発明によれば、ホロー部内に金属製の補強材が配置されるため、窓枠の強度をさらに向上することができる。また、補強材で区画壁を構成するため、区画壁を構成する部材と、補強用の部材とを別々に設ける場合に比べて、コストを低減できる。
In the fire protection sash of the present invention, it is preferable that a metal reinforcing member is arranged in the hollow portion, and the partition wall is made of the reinforcing member.
According to the present invention, since the reinforcing member made of metal is arranged in the hollow portion, the strength of the window frame can be further improved. In addition, since the partition wall is made of the reinforcing material, the cost can be reduced as compared with the case where the partition wall member and the reinforcing member are provided separately.

本発明の防火サッシにおいて、前記補強材には、火災時に前記室外空間で発泡する加熱発泡材と、火災時に前記室内空間で発泡する加熱発泡材との少なくとも一方が設けられていることが好ましい。
本発明によれば、火災時に、室外空間で発泡する加熱発泡材と、室内空間で発泡する加熱発泡材との少なくとも一方を設けたので、区画壁による遮炎に加えて加熱発泡材が空間に充填することによっても火炎を遮炎できるので、防火性能をより向上できる。
また、加熱発泡材は、補強材に設けているので、加熱発泡材を予め貼付した補強材をホロー部内に配置すればよく、ホロー部内に加熱発泡材を直接設ける場合に比べて、加熱発泡材を容易に配置できる。
In the fire protection sash of the present invention, it is preferable that at least one of a heating foam material that foams in the outdoor space during a fire and a heating foam material that foams in the indoor space during a fire is provided in the reinforcing material.
According to the present invention, at least one of the heating foaming material that foams in the outdoor space and the heating foaming material that foams in the indoor space is provided in the event of a fire. Since the flame can also be blocked by filling, the fireproof performance can be further improved.
In addition, since the heating foaming material is provided in the reinforcing member, the reinforcing member to which the heating foaming material is attached in advance can be placed inside the hollow portion. can be easily placed.

本発明の防火サッシにおいて、前記障子は、前記窓枠に沿って移動する障子であり、前記枠材には、前記障子の戸先框に当接する引寄せ片が設けられ、前記区画壁は、見込み方向において、前記引寄せ片の位置に設けられていることが好ましい。
本発明によれば、引違い窓や上げ下げ窓のように、障子が窓枠に沿ってスライド移動する防火サッシにおいて、障子を閉めた際にその戸先框が窓枠の引寄せ片に当接した場合、窓枠の引寄せ片に力が加わる。この際、区画壁の見込み方向の位置が引寄せ片の位置に揃っていれば、引寄せ片に力が加わって窓枠が撓んだ際に、その力を区画壁でも受けることができ、窓枠の変形を防止できる。
In the fire prevention sash of the present invention, the shoji is a shoji that moves along the window frame, the frame member is provided with a drawing piece that abuts on the door frame of the shoji, and the partition wall is: It is preferably provided at the position of the attracting piece in the direction of projection.
According to the present invention, in a fireproof sash in which a shoji slides along a window frame, such as a double sliding window or a double-hung window, when the shoji is closed, the door frame abuts the pulling piece of the window frame. In this case, force is applied to the attracting piece of the window frame. At this time, if the position of the partition wall in the projection direction is aligned with the position of the attracting piece, when the window frame is bent due to the force applied to the attracting piece, the force can be received by the partition wall as well. Deformation of the window frame can be prevented.

本発明の防火サッシにおいて、前記窓枠は、既設枠の開口内に配置される新設枠であり、前記室外穴および前記室内穴の少なくとも一方は、前記新設枠を前記既設枠側に固定するネジの挿通用の穴であることが好ましい。
本発明によれば、室外穴や室内穴に固定用のネジを挿通できるので、固定用のネジの頭部をホロー部内に配置できる。このため、固定用のネジが窓枠内周側に露出することも防止でき、意匠性を向上できる。
In the fire protection sash of the present invention, the window frame is a new frame arranged in an opening of the existing frame, and at least one of the outdoor hole and the indoor hole is provided with screws for fixing the new frame to the existing frame. is preferably a hole for insertion of the .
According to the present invention, since the fixing screw can be inserted through the outdoor hole or the indoor hole, the head of the fixing screw can be arranged in the hollow portion. For this reason, it is possible to prevent the fixing screw from being exposed to the inner peripheral side of the window frame, thereby improving the design.

1…改装サッシ、2…躯体、3…外壁、4…アンカー、5…外障子、6…内障子、7…網戸、10…既設枠、11…既設上枠、12…既設下枠、13…既設左縦枠、14…既設右縦枠、20…新設枠、21…新設上枠、22…新設下枠、23…新設左縦枠、24…新設右縦枠、26…塞ぎ材、27…縦補強材、28…縦補強材、29…補強材、31…アタッチメント、32…アタッチメント、33…アタッチメント、34…アタッチメント、41…上カバー材、43…縦カバー材、44…縦カバー材、51…上遮炎金具、53…縦遮炎金具、54…縦遮炎金具、61…スペーサー、75…加熱発泡材、76…加熱発泡材、80…風止め板、81…窓額縁、82…窓額縁、83…窓額縁、84…窓額縁、91…ガイドブロック、92…ガイドブロック、111…外レール、112…内レール、113…室外片、114…室内片、131…引寄せ片、133…室外片、134…室内片、141…引寄せ片、143…室外片、144…室内片、210…上枠本体、211…上枠アングル材、212…下面部、212A…第1下面部、212B…第2下面部、213…上面部、214A…第1ホロー部、214B…第2ホロー部、215…室外片部、216…網戸レール、217…外レール、218…内レール、219…穴、220…下枠本体、221…下枠アングル材、230…左縦枠本体、231…縦枠アングル材、232…内面部、233…外面部、234A…ホロー部、235…室外片部、236…網戸ガイド片、237…引寄せ片、239…穴、240…右縦枠本体、241…縦枠アングル材、242…内面部、243…外面部、244A…ホロー部、245…室外片部、246…網戸ガイド片、247…引寄せ片、249…穴、251…ネジ、252…ネジ、253…ネジ、254…ネジ、255…ネジ、256…ネジ、257…ネジ、261…塞ぎ部、262…固定部、263…ネジ、265…キャップ、266…キャップ、271…見込み面部、272…室外見付け面部、273…室内見付け面部、274…ネジ、281…見込み面部、282…室外見付け面部、283…室内見付け面部、284…ネジ、311…ネジ、321…ネジ、331…ネジ、341…ネジ、411…見込み片部、412…室内当接片、413…室外当接片、416…水密材、417…水密材、431…見込み片部、432…室内当接片、433…室外当接片、436…水密材、437…水密材、441…見込み片部、442…室内当接片、443…室外当接片、446…水密材、447…水密材、451…ネジ、453…ネジ、454…ネジ、511…見付け面部、512…見込み面部、513…ネジ、531…見付け面部、532…見込み面部、533…ネジ、534…ネジ、535…端面、541…見付け面部、542…見込み面部、543…ネジ、544…ネジ、631…スペーサー、632…スペーサー、641…スペーサー、642…スペーサー、711…加熱発泡材、712…加熱発泡材、713…加熱発泡材、721…加熱発泡材、722…加熱発泡材、731…加熱発泡材、732…加熱発泡材、733…加熱発泡材、741…加熱発泡材、742…加熱発泡材、743…加熱発泡材、771…加熱発泡材、772…加熱発泡材、2141…連結片部、2142…連結片部、2143…連結片部、2341…連結片部、2342…連結片部、2441…連結片部、2442…連結片部、4131…室外延出部、4132…室外見付け面部、4133…室外当接部、4331…室外延出部、4332…室外見付け面部、4333…室外当接部、4431…室外延出部、4432…室外見付け面部、4433…室外当接部。 DESCRIPTION OF SYMBOLS 1... Remodeling sash 2... Frame 3... Outer wall 4... Anchor 5... Outside shoji 6... Inside shoji 7... Screen door 10... Existing frame 11... Existing upper frame 12... Existing lower frame 13... Existing left vertical frame 14 Existing right vertical frame 20 Newly established frame 21 Newly established upper frame 22 Newly established lower frame 23 Newly established left vertical frame 24 Newly established right vertical frame 26 Closing material 27 Vertical reinforcing member 28 Vertical reinforcing member 29 Reinforcing member 31 Attachment 32 Attachment 33 Attachment 34 Attachment 41 Upper cover member 43 Vertical cover member 44 Vertical cover member 51 Upper flame shielding fitting 53 Vertical flame shielding fitting 54 Vertical flame shielding fitting 61 Spacer 75 Heating foam material 76 Heating foam material 80 Wind guard 81 Window frame 82 Window Frame 83 Window frame 84 Window frame 91 Guide block 92 Guide block 111 Outer rail 112 Inner rail 113 Outdoor piece 114 Indoor piece 131 Attracting piece 133 Outdoor piece 134 Indoor piece 141 Attracting piece 143 Outdoor piece 144 Indoor piece 210 Upper frame main body 211 Upper frame angle member 212 Lower surface portion 212A First lower surface portion 212B ... second lower surface portion 213 ... upper surface portion 214A ... first hollow portion 214B ... second hollow portion 215 ... outdoor piece portion 216 ... screen door rail 217 ... outer rail 218 ... inner rail 219 ... hole, 220... Lower frame main body 221... Lower frame angle material 230... Left vertical frame main body 231... Vertical frame angle material 232... Inner surface part 233... External surface part 234A... Hollow part 235... Outdoor piece part 236... Screen door guide piece 237 Pulling piece 239 Hole 240 Right vertical frame main body 241 Vertical frame angle member 242 Inner surface portion 243 External surface portion 244A Hollow portion 245 Outdoor piece portion 246 ... Screen door guide piece 247 ... Pulling piece 249 ... Hole 251 ... Screw 252 ... Screw 253 ... Screw 254 ... Screw 255 ... Screw 256 ... Screw 257 ... Screw 261 ... Closing part 262 ... Fixing part 263...Screw 265...Cap 266...Cap 271...Expected surface part 272...Outdoor appearance part 273...Indoor appearance part 274...Screw 281...Expectation surface part 282...Outdoor appearance part 283...Indoor Facing surface portion 284 Screw 311 Screw 321 Screw 331 Screw 341 Screw 411 Projection piece 412 Indoor contact piece 413 Outdoor contact piece 416 Watertight material 417 watertight material, 431... projection piece part, 432... indoor contact piece, 433... Outdoor contact piece, 436... Watertight material, 437... Watertight material, 441... Projection piece part, 442... Indoor contact piece, 443... Outdoor contact piece, 446... Watertight material, 447... Watertight material, 451... Screw , 453... screw, 454... screw, 511... facing surface part, 512... prospecting surface part, 513... screw, 531... facing surface part, 532... prospecting surface part, 533... screw, 534... screw, 535... end surface, 541... facing surface part, 542... Prospect surface portion 543... Screw 544... Screw 631... Spacer 632... Spacer 641... Spacer 642... Spacer 711... Heated foam material 712... Heated foam material 713... Heated foam material 721... Heated Foaming material 722 Heating foaming material 731 Heating foaming material 732 Heating foaming material 733 Heating foaming material 741 Heating foaming material 742 Heating foaming material 743 Heating foaming material 771 Heating foaming material , 772... Heated foam material 2141... Connection piece part 2142... Connection piece part 2143... Connection piece part 2341... Connection piece part 2342... Connection piece part 2441... Connection piece part 2442... Connection piece part 4131 ...Outdoor extension part 4132...Outdoor appearance surface part 4133...Outdoor contact part 4331...Outdoor extension part 4332...Outdoor appearance surface part 4333...Outdoor contact part 4431...Outdoor extension part 4432...Outdoor appearance Surface portion, 4433: outdoor contact portion.

Claims (5)

窓枠と、障子とを備える防火サッシであって、
前記窓枠の縦枠および横枠のうち少なくとも一つの枠は、障子を閉めた際に、見込み方向において、障子の室外側から室内側に跨って配置されるホロー部を有する枠材で構成され、
前記枠材の障子に対向する見込み面には、見込み方向において、前記障子の室外側の位置で前記ホロー部に連通する室外穴と、前記障子の室内側の位置で前記ホロー部に連通する室内穴とが形成され、
前記ホロー部内には、前記室外穴に連通する室外空間と、前記室内穴に連通する室内空間とを区画する区画壁が設けられている
ことを特徴とする防火サッシ。
A fireproof sash comprising a window frame and a shoji,
At least one of the vertical frame and the horizontal frame of the window frame is composed of a frame material having a hollow portion that is arranged from the outdoor side to the indoor side of the shoji in the prospective direction when the shoji is closed. ,
The projected surface of the frame member facing the shoji includes an outdoor hole communicating with the hollow portion at a position on the outdoor side of the shoji and an indoor hole communicating with the hollow portion at a position on the indoor side of the shoji in the projected direction. a hole is formed,
A fire prevention sash, wherein a partition wall is provided in the hollow portion to separate an outdoor space communicating with the outdoor hole and an indoor space communicating with the indoor hole.
請求項1に記載の防火サッシにおいて、
前記ホロー部内には金属製の補強材が配置され、
前記区画壁は前記補強材で構成されている
ことを特徴とする防火サッシ。
In the fire protection sash according to claim 1,
A metal reinforcing member is arranged in the hollow portion,
The fireproof sash, wherein the partition wall is made of the reinforcing material.
請求項2に記載の防火サッシにおいて、
前記補強材には、
火災時に前記室外空間で発泡する加熱発泡材と、火災時に前記室内空間で発泡する加熱発泡材との少なくとも一方が設けられている
ことを特徴とする防火サッシ。
In the fire protection sash according to claim 2,
The reinforcing material includes
A fire protection sash comprising at least one of a heating foam material that foams in the outdoor space in the event of a fire and a heating foam material that foams in the indoor space in the event of a fire.
請求項1から請求項3までのいずれか一項に記載の防火サッシにおいて、
前記障子は、前記窓枠に沿って移動する障子であり、
前記枠材には、前記障子の戸先框に当接する引寄せ片が設けられ、
前記区画壁は、見込み方向において、前記引寄せ片の位置に設けられている
ことを特徴とする防火サッシ。
In the fire protection sash according to any one of claims 1 to 3,
The shoji is a shoji that moves along the window frame,
The frame member is provided with a drawing piece that abuts on the door frame of the shoji,
The fireproof sash, wherein the partition wall is provided at the position of the attracting piece in the projection direction.
請求項1から請求項4までのいずれか一項に記載の防火サッシにおいて、
前記窓枠は、既設枠の開口内に配置される新設枠であり、
前記室外穴および前記室内穴の少なくとも一方は、前記新設枠を前記既設枠側に固定するネジの挿通用の穴である
ことを特徴とする防火サッシ。
In the fire protection sash according to any one of claims 1 to 4,
The window frame is a new frame that is arranged within an opening of the existing frame,
At least one of the outdoor hole and the indoor hole is a hole for inserting a screw for fixing the new frame to the existing frame.
JP2021140500A 2021-08-30 2021-08-30 Fireproof sash Pending JP2023034325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021140500A JP2023034325A (en) 2021-08-30 2021-08-30 Fireproof sash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021140500A JP2023034325A (en) 2021-08-30 2021-08-30 Fireproof sash

Publications (1)

Publication Number Publication Date
JP2023034325A true JP2023034325A (en) 2023-03-13

Family

ID=85504543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021140500A Pending JP2023034325A (en) 2021-08-30 2021-08-30 Fireproof sash

Country Status (1)

Country Link
JP (1) JP2023034325A (en)

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