JP7621127B2

JP7621127B2 - Architectural Panels

Info

Publication number: JP7621127B2
Application number: JP2021011766A
Authority: JP
Inventors: 健内倉; 順一野澤
Original assignee: Sanwa Shutter Corp
Current assignee: Sanwa Shutter Corp
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2025-01-24
Anticipated expiration: 2041-01-28
Also published as: JP2022115250A

Description

本発明は、建築用パネルに係り、詳しくは、防火性能が向上された下框を備えた建築用パネルに関するものである。 The present invention relates to architectural panels, and more specifically to architectural panels with a lower frame that has improved fire resistance.

窓装置は、窓開口部を障子で開閉するものである。障子には、ガラスが嵌め込まれたものがあり、このものでは、障子の上框、下框、左右の縦框の溝部にガラスの周縁部を受け入れて固定するようにしている。窓装置において、窓開口部全閉状態において防火性能が要求される場合があり、所定時間加熱された時であっても、障子によって仕切られた室外側空間と室内側空間との間に防火上不利な隙間が生じないことが必要となる。 A window device opens and closes a window opening with a shoji screen. Some shoji screens have glass fitted into them, and the edges of the glass are received and fixed into the grooves of the upper and lower frames and left and right vertical frames of the shoji screen. Window devices may be required to have fire resistance when the window opening is fully closed, and it is necessary that no gaps that are disadvantageous in terms of fire resistance are created between the outside and inside spaces separated by the shoji screen, even when heated for a specified period of time.

防火性能を確保するためには、窓枠と障子の框及び障子の框の溝部とガラスの周縁部の間に隙間が生じることを防止する必要がある。また、窓障子に限らず、建築用パネルには、ガラスが嵌め込まれたものがあり、このような建築用パネルに防火性能が要求される場合がある。特許文献１には、防火性能を備えた樹脂製建具が開示されている。
特開２０１０－２４８８３６号 In order to ensure fire resistance, it is necessary to prevent gaps from occurring between the window frame and the frame of the shoji screen, and between the groove of the frame of the shoji screen and the periphery of the glass. In addition, not only window shoji screens but also architectural panels include those in which glass is embedded, and fire resistance is sometimes required for such architectural panels. Patent Document 1 discloses a resin fitting with fire resistance.
JP 2010-248836 A

本発明は、防火性能が向上された下框を備えた建築用パネルを提供することを目的とする。 The present invention aims to provide a building panel with a bottom frame that has improved fire resistance.

かかる課題を達成するために本発明が採用した技術手段は、
ガラスが嵌め込まれた建築用パネルにおいて、
前記建築用パネルの下框には、セッティングブロックが設けてあり、
前記ガラスの下端は、前記セッティングブロックの上面に支持されており、
前記セッティングブロックの上面の見込幅は前記ガラスの板厚よりも大きく、
前記セッティングブロックの上面には、前記ガラスの見付面から離間して熱膨張耐火部材が設けてある、建築用パネル、である。
１つの態様では、前記ガラス下端と前記セッティングブロックの間には熱膨張耐火部材は設けておらず、
前記熱膨張耐火部材は、前記ガラス下端のレベルよりも上方に位置している。 The technical means adopted in the present invention to achieve this object are as follows:
In architectural panels with glass inlay,
A setting block is provided on the bottom frame of the building panel,
The lower end of the glass is supported on the upper surface of the setting block,
The projected width of the upper surface of the setting block is greater than the thickness of the glass sheet,
The setting block has an upper surface on which a thermally expandable fire-resistant member is provided, spaced apart from the facing surface of the glass.
In one embodiment, no thermal expansion refractory member is provided between the lower end of the glass and the setting block,
The thermally expandable refractory member is located above the level of the lower edge of the glass.

１つの態様では、前記下框は、第１見付面と、第２見付面と、下面と、第１上片と、第２上片と、を備え、第１上片と第２上片との間からガラスの下端側部位を受け入れており、
前記セッティングブロックの上面は、少なくとも前記第１上片の下方に離間して対向する第１部分を備え、前記第１上片と、前記第１部分と、ガラスの下端部位との間に空間が形成されており、
前記熱膨張耐火部材の少なくとも部分は、前記第１部分に位置している。 In one aspect, the lower frame includes a first facing surface, a second facing surface, a lower surface, a first upper piece, and a second upper piece, and receives a lower end portion of the glass from between the first upper piece and the second upper piece.
The upper surface of the setting block has at least a first portion facing the lower side of the first upper piece at a distance, and a space is formed between the first upper piece, the first portion, and a lower end portion of the glass,
At least a portion of the thermally expandable refractory member is located in the first portion.

１つの態様では、前記下框の前記空間に面する部位には、前記熱膨張耐火部材の上方に位置して、上側熱膨張耐火部材が設けてある。
１つの態様では、前記下框の内部には、前記セッティングブロックを支持する下面が幅方向に亘って延びており、
前記下面上には、幅方向に亘って下側熱膨張耐火部材が設けてあり、
前記セッティングブロックは、前記下側熱膨張耐火部材上に位置している。
すなわち、本発明が採用した他の技術手段は、
ガラスが嵌め込まれた建築用パネルにおいて、
前記下框の内部には、セッティングブロックが、当該下框の幅方向に亘って延びる下面上に支持されており、
前記下面上には、幅方向に亘って下側熱膨張耐火部材が設けてあり、
前記セッティングブロックは、前記下側熱膨張耐火部材上に位置しており、
前記ガラスの下端は、前記セッティングブロックの上面に支持されており、
前記セッティングブロックの前記上面の見込幅は前記ガラスの板厚よりも大きく、前記ガラス下端が載っていないはみ出し部位を備え、
前記セッティングブロックの前記はみ出し部位には、熱膨張耐火部材が設けてあり、
前記下側熱膨張耐火部材と前記熱膨張耐火部材は、前記下框の内部において、当該下框の幅方向に亘って平面視連続状に延びている、
建築用パネル、である。 In one embodiment, an upper thermally-expandable fire-resistant member is provided on the portion of the lower frame facing the space, located above the thermally-expandable fire-resistant member.
In one embodiment, a lower surface that supports the setting block extends in the width direction inside the lower frame,
A lower thermally expandable refractory member is provided on the lower surface across the width,
The setting block rests on the lower thermally expandable refractory member.
That is, the other technical means adopted in the present invention are:
In architectural panels with glass inlay,
A setting block is supported on a lower surface of the lower frame extending across the width of the lower frame.
A lower thermally expandable refractory member is provided on the lower surface across the width,
the setting block is positioned on the lower thermal expansion refractory member;
The lower end of the glass is supported on the upper surface of the setting block,
The projection width of the upper surface of the setting block is greater than the thickness of the glass sheet, and the setting block has a protruding portion on which the lower end of the glass does not rest,
A thermal expansion refractory member is provided at the protruding portion of the setting block,
The lower thermal expansion fireproof member and the thermal expansion fireproof member extend continuously in a plan view in the width direction of the lower frame inside the lower frame,
It is an architectural panel.

本発明では、建築用パネルの下框内において、セッティングブロックの上面に熱膨張耐火部材を設けたことで、火災時の熱で前記熱膨張耐火部材が膨張することで、下框の内部空間におけるセッティングブロック近傍の空間を塞ぐことができ、建築用パネルの下框における防火性能を向上させることができる。 In the present invention, a thermally expandable fire-resistant member is provided on the upper surface of the setting block within the bottom frame of the architectural panel. This allows the thermally expandable fire-resistant member to expand due to heat during a fire, thereby sealing off the space near the setting block in the internal space of the bottom frame, thereby improving the fire resistance of the bottom frame of the architectural panel.

全閉状態にある窓装置を室内側から見た正面図である。FIG. 2 is a front view of the window device in a fully closed state as viewed from the inside of the room. 開放状態にある窓装置の側面図である。FIG. 2 is a side view of the window device in an open state. 全閉状態にある窓装置の縦断面図である。FIG. 2 is a vertical cross-sectional view of a window device in a fully closed state. 全閉状態にある窓装置の横断面図である。FIG. 2 is a cross-sectional view of a window device in a fully closed state. 最下位以外の障子（最上位の障子及び中間の障子）を室内側から見た正面図である。This is a front view of the shoji screens other than the lowest one (the topmost shoji screen and the middle shoji screen) as seen from inside the room. 最下位の障子を室内側から見た正面図である。This is a front view of the lowest shoji screen as seen from inside the room. 障子の下框の防火性能を向上させる構造を示す縦断面図であり、３つの異なる態様を（Ａ）、（Ｂ）、（Ｃ）として示している。FIG. 1 is a vertical cross-sectional view showing a structure for improving the fire resistance of the bottom frame of a shoji screen, with three different embodiments shown as (A), (B), and (C). 障子の下框の防火性能を向上させる構造を示す横断面図であり、（Ａ）、（Ｂ）、（Ｃ）は、図８の（Ａ）、（Ｂ）、（Ｃ）に対応している。11A, 11B, and 11C are cross-sectional views showing a structure for improving the fire resistance of the bottom frame of a shoji screen, and (A), (B), and (C) correspond to (A), (B), and (C) in FIG. 8. 図５と類似の図であり、図７、図８に示す構造を備えている。9 is a view similar to FIG. 5, with the structure shown in FIG. 7 and FIG. 8. 図６と類似の図であり、図７、図８に示す構造を備えている。9 is a view similar to FIG. 6, and has the structure shown in FIG. 7 and FIG. 8. 左図は、４枚の障子を備えた窓装置の縦断面図であり、右図は、左図と類似の図であって、図７～図９に示す構造を備えている。The left figure is a vertical cross-sectional view of a window device having four shoji panels, and the right figure is a view similar to the left figure, and has the structure shown in Figures 7 to 9.

［Ａ］窓装置の基本構成
［Ａ―１］窓装置の全体構成
図１に示すように、窓装置は、窓枠と、窓枠によって形成された窓開口部を開閉する複数枚（図１では２枚を例示）のパネルないし障子１とから構成されている。窓装置を構成する障子１の枚数は限定されず、例えば、３以上の障子を備えるものでもよく、図１１に示す実施形態では、４枚の障子１を備えている。本実施形態に係る窓装置は防火性能を備えており、防火のための構成については、後述する。 [A] Basic configuration of the window device [A-1] Overall configuration of the window device As shown in Fig. 1, the window device is composed of a window frame and a plurality of panels or shoji screens 1 (two screens are illustrated in Fig. 1) that open and close the window opening formed by the window frame. The number of shoji screens 1 that compose the window device is not limited, and may be, for example, three or more shoji screens, and the embodiment shown in Fig. 11 has four shoji screens 1. The window device according to this embodiment has fireproof performance, and the fireproof configuration will be described later.

窓枠は、上枠２、下枠３、左右の縦枠４、５から構成されており、上枠２、下枠３、左右の縦枠４、５に囲まれた縦長方形状の窓開口部が形成されている。障子１は、上框６、下框７、左右の縦框８、９から構成された横長方形状の框と、框で囲まれた横長方形状の領域にはめ込まれたガラス板１０と、から構成されており、上下に連設された複数枚の障子１によって窓開口部を開閉するようになっている。 The window frame is composed of an upper frame 2, a lower frame 3, and left and right vertical frames 4 and 5, and a vertical rectangular window opening is formed surrounded by the upper frame 2, lower frame 3, and left and right vertical frames 4 and 5. The shoji screen 1 is composed of a horizontal rectangular frame made up of an upper frame 6, a lower frame 7, and left and right vertical frames 8 and 9, and a glass panel 10 fitted into the horizontal rectangular area surrounded by the frame, and the window opening is opened and closed by multiple shoji screens 1 connected vertically.

本実施形態では、窓枠及び障子１の框はアルミニウム型材から形成されている。ガラス板１０は、室内側面部１００、室外側面部１０１、上端面１０２、下端面１０３、幅方向端部の側端面１０４、１０５を備えている。図４、図５、図７（Ｃ）、図８（Ｃ）、図１１左図に示すガラス板１０は複層の複合ガラスであるのに対して、図７（Ａ）、（Ｂ）、図８（Ａ）、（Ｂ）、図１１右図に示すガラス板１０は単層であり、複合ガラスに比べて厚さが小さくなっている。 In this embodiment, the window frame and the frame of the shoji screen 1 are formed from aluminum shaped material. The glass plate 10 has an interior side surface 100, an exterior side surface 101, an upper end surface 102, a lower end surface 103, and side end surfaces 104, 105 at the widthwise ends. The glass plates 10 shown in Figures 4, 5, 7(C), 8(C), and the left diagram of Figure 11 are multi-layer composite glass, whereas the glass plates 10 shown in Figures 7(A), (B), 8(A), (B), and the right diagram of Figure 11 are single-layer and are thinner than composite glass.

図２、図３、図７、図１１において、右側が室内側、左側が室外側である。図４、図８において、下側が室内側、上側が室外側である。本明細書において、「室内側」、「室外側」という表現は、部材が実際に室内側あるいは室外側に位置する場合に加えて、部材や部材の部分の相対的な位置や方向を規定するものとしても用いられる点に留意されたい。 In Figures 2, 3, 7, and 11, the right side is the indoor side and the left side is the outdoor side. In Figures 4 and 8, the lower side is the indoor side and the upper side is the outdoor side. Please note that in this specification, the expressions "indoor side" and "outdoor side" are used to specify the relative position and direction of components or parts of components, in addition to when a component is actually located on the indoor or outdoor side.

［Ａ―２］本実施形態に係る窓装置の開閉機構
本実施形態に係る窓装置は、すべり出し窓である。各障子１は、上端部を回動支点として前後方向に回動可能であると共に、回動支点は、窓枠の左右の縦枠４、５に沿って上下方向に移動自在に設けられた左右の開閉操作バー１１を介して、上下方向に移動自在となっている。 [A-2] Opening and closing mechanism of the window device according to this embodiment The window device according to this embodiment is a sliding window. Each shoji 1 can rotate in the front-rear direction with its upper end as a pivot point, and the pivot point can be moved up and down via the left and right opening and closing operation bars 11 that are provided to be movable up and down along the left and right vertical frames 4, 5 of the window frame.

各障子１は、窓枠の左右の縦枠４、５と、各障子２の左右の縦框８、９との間に設けた連結機構を介して窓枠に連結されている。連結機構は、開閉操作バー１１と、第１アーム１２と、第２アーム１３と、ベース１４と、ブラケット１５と、作動プレート１６と、を有する。ベース１４は、縦枠４、５に固定されている。ベース１４には上下に延びる長穴１４０が形成されており、長穴１４０の上端部は室内側に傾斜している。 Each shoji screen 1 is connected to the window frame via a connection mechanism provided between the left and right vertical frames 4, 5 of the window frame and the left and right vertical stiles 8, 9 of each shoji screen 2. The connection mechanism has an opening/closing operation bar 11, a first arm 12, a second arm 13, a base 14, a bracket 15, and an operating plate 16. The base 14 is fixed to the vertical frames 4, 5. A long hole 140 extending vertically is formed in the base 14, and the upper end of the long hole 140 is inclined toward the inside of the room.

第１アーム１２は、障子１の縦框８、９の上方部位に連結されており、第１アーム１２の上端部は係合ピン１２０を介して、ベース１４に回動自在かつ上下スライド自在に連結されている。第１アーム１２の上部に突設した係合ピン１２０は、ベース１４の長穴１４０内にスライド自在に嵌められており、長穴１４０にガイドされる。係合ピン１２０がベース１４の長穴１４０の上端部に位置している時に障子１が直立姿勢となって窓開口部が閉じられ、係合ピン１２０が長穴１４０の下端部に位置している時に障子１が傾斜姿勢となって窓開口部が開放される（図２参照）。第１アーム１２の中央付近より下の部分には、第２アーム１３の上端部が回動自在に連結されている。第２アーム１３の下端部は縦枠４、５に固定されたブラケット１５に回動自在に連結されている。 The first arm 12 is connected to the upper part of the vertical frames 8 and 9 of the shoji screen 1, and the upper end of the first arm 12 is connected to the base 14 via an engagement pin 120 so as to be freely rotatable and slidable up and down. The engagement pin 120 protruding from the upper part of the first arm 12 is slidably fitted into the long hole 140 of the base 14 and is guided by the long hole 140. When the engagement pin 120 is located at the upper end of the long hole 140 of the base 14, the shoji screen 1 is in an upright position and the window opening is closed, and when the engagement pin 120 is located at the lower end of the long hole 140, the shoji screen 1 is in an inclined position and the window opening is open (see Figure 2). The upper end of the second arm 13 is rotatably connected to a part below the center of the first arm 12. The lower end of the second arm 13 is rotatably connected to a bracket 15 fixed to the vertical frames 4 and 5.

作動プレート１６は、開閉操作バー１１における各障子１の上端部と対応する部分に、開閉操作バー１１から室外側に突出するように設けてあり、開閉操作バー１１の上下動に伴って、作動プレート１６が上下動して、係合ピン１２０を上下に移動させる。作動プレート１６には、長穴１６０が形成されており、作動プレート１６は、ベース１４と第１アーム１２の上端部との間に介装されており、長穴１６０内には、係合ピン１２０がスライド自在に嵌まっており、係合ピン１２０は、長穴１６０にガイドされる。開閉操作バー１１の下動により作動プレート１６を所定距離下動させると、ピン１２０はベース１４の長穴１４０を下方に移動し、第１アーム１２が係合ピン１２０を中心にして室外側に回動すると共に第２アーム１３が下端部を中心として室外側に回動し、障子１が傾動して開口部を開放する。 The operating plate 16 is provided at a portion of the opening/closing operation bar 11 corresponding to the upper end of each screen 1 so as to protrude from the opening/closing operation bar 11 to the outside of the room. As the opening/closing operation bar 11 moves up and down, the operating plate 16 moves up and down, moving the engagement pin 120 up and down. A long hole 160 is formed in the operating plate 16, and the operating plate 16 is interposed between the base 14 and the upper end of the first arm 12. The engagement pin 120 is slidably fitted into the long hole 160, and the engagement pin 120 is guided by the long hole 160. When the opening/closing operation bar 11 moves downward to move the operating plate 16 a predetermined distance, the pin 120 moves downward through the long hole 140 of the base 14, the first arm 12 rotates around the engagement pin 120 to the outside of the room, and the second arm 13 rotates around the lower end to the outside of the room, causing the screen 1 to tilt and open the opening.

開閉操作バー１１の下端部には、開閉操作バー１１を上下動させる作動機構が連結されている。作動機構は、左右の開閉操作バー１１に上端部が回動自在に連結されたリンク１７と、リンク１７の下端部に上端部が回動自在に連結され、下端部が回動支点となる回動アーム１８と、からなる屈伸機構である。左右の開閉操作バー１１の下端部には、それぞれ作動機構が連結されており、左右の作動機構は、左右の回動アーム１８の下端部の回動支点同士を連結する回動軸１９によって連動されている。一方の作動機構には、伝達機構を介して、リンク１７と回動アーム１８とからなる屈伸機構を上下に屈伸させる操作ハンドルＨが設けてある。左右の作動機構と、左右の作動機構を連動する回動軸１９と、一方の作動機構を屈伸させる操作ハンドルＨとから、障子１の開閉操作機構が構成される。操作ハンドルＨを回転することで、左右のリンク１７と回動アーム１８が屈伸することで、左右の開閉操作バー１１が下動または上動する。 An operating mechanism that moves the opening/closing operation bar 11 up and down is connected to the lower end of the opening/closing operation bar 11. The operating mechanism is a bending/extending mechanism consisting of a link 17 whose upper end is rotatably connected to the left and right opening/closing operation bars 11, and a pivot arm 18 whose upper end is rotatably connected to the lower end of the link 17 and whose lower end serves as a pivot point. An operating mechanism is connected to the lower end of each of the left and right opening/closing operation bars 11, and the left and right operating mechanisms are linked by a pivot shaft 19 that connects the pivot points of the lower ends of the left and right pivot arms 18. One of the operating mechanisms is provided with an operating handle H that bends and extends the bending/extending mechanism consisting of the link 17 and the pivot arm 18 up and down via a transmission mechanism. The opening/closing operation mechanism for the shoji screen 1 is made up of the left and right operating mechanisms, the pivot shaft 19 that links the left and right operating mechanisms, and the operating handle H that bends and extends one of the operating mechanisms. By rotating the operating handle H, the left and right links 17 and the pivoting arms 18 bend and extend, causing the left and right opening and closing operating bars 11 to move downward or upward.

［Ｂ］窓枠の詳細
［Ｂ―１］上枠
図３に示すように、窓枠の上枠２は、室内側見付部２０と、室外側見付部２１と、室内側見付部２０と室外側見付部２１の上方部位を水平状に連結する上面部２２と、を備えている。室内側見付部２０は、垂直状の上側部位２００と、上側部位２００の下端から室外側かつ下方に向かって延びる下側部位２０１と、からなり、下側部位２０１の下端には、室外側に向くポケット部が一体形成され、ポケット部には室内側シール材Ｓ１が幅方向に亘って取り付けられている。室外側見付部２１は垂直状に延びており、下端には、下向きの室外側ポケット部が一体形成されており、ポケット部には室外側シール材Ｓ２が幅方向に亘って取り付けられている。図示の態様では、室外側ポケット部の高さは、室内側ポケット部の高さよりも僅かに上方に位置している。 [B] Details of the window frame [B-1] Upper frame As shown in FIG. 3, the upper frame 2 of the window frame has an indoor facing portion 20, an outdoor facing portion 21, and an upper surface portion 22 that horizontally connects the upper portions of the indoor facing portion 20 and the outdoor facing portion 21. The indoor facing portion 20 is composed of a vertical upper portion 200 and a lower portion 201 that extends from the lower end of the upper portion 200 toward the outdoor side and downward. A pocket portion facing the outdoor side is integrally formed at the lower end of the lower portion 201, and an indoor sealing material S1 is attached to the pocket portion across the width. The outdoor facing portion 21 extends vertically, and a downward-facing outdoor pocket portion is integrally formed at the lower end, and an outdoor sealing material S2 is attached to the pocket portion across the width. In the illustrated embodiment, the height of the outdoor pocket portion is located slightly above the height of the indoor pocket portion.

［Ｂ―２］下枠
図３に示すように、下枠３は、垂直状の室内側見付部３０と、室内側見付部３０の上方部位から室外側に向かって水平状に延びる上面部３１と、室内側見付部３０の下方部位から室外側に向かって延びる下面部３２と、を備えている。下面部３２は上面部３１に対して室外側に延びており、下面部３２の室外側には当該下面部３２の下側に位置して室外側見付部３３が一体形成されており、室外側見付部３３の最も室外側に位置して垂直状の室外側見付面３３０が形成されている。上面部３１の先端には、室外側に向くポケット部が一体形成されており、ポケット部には室内側シール材Ｓ３が幅方向に亘って取り付けられている。下面部３２の室外側端部には折曲片３２０が一体形成されている。 [B-2] Lower Frame As shown in FIG. 3, the lower frame 3 has a vertical indoor facing portion 30, an upper surface portion 31 extending horizontally from the upper portion of the indoor facing portion 30 toward the outdoor side, and a lower surface portion 32 extending from the lower portion of the indoor facing portion 30 toward the outdoor side. The lower surface portion 32 extends toward the outdoor side relative to the upper surface portion 31, and an outdoor facing portion 33 is integrally formed on the outdoor side of the lower surface portion 32, located below the lower surface portion 32, and a vertical outdoor facing surface 330 is formed at the outermost position of the outdoor facing portion 33. A pocket portion facing the outdoor side is integrally formed at the tip of the upper surface portion 31, and an indoor sealing material S3 is attached to the pocket portion across the width direction. A bent piece 320 is integrally formed at the outdoor side end of the lower surface portion 32.

［Ｂ―３］縦枠
図４に示すように、縦枠４は、室内側見付部４０と、室内側見付部４０の見付方向内側から室外側に延びる内側見込面４１と、室内側見付面４０の見付方向外側から室外側に延びる外側見込面４２と、を備えている。外側見込面４２は、内側見込面４１に対して室外側に延びており、外側見込面４２の室外側端部から外側に延びる室外側見付部４３が形成されている。縦枠４の内側見込面４１の先端には、室外側に向くポケット部が一体形成されており、ポケット部には室内側シール材Ｓ４が高さ方向に亘って取り付けられている。縦枠４の外側見込面４２の室外側部位の内面にはポケット部が内側に向いて一体形成されており、ポケット部には室外側シール材Ｓ５が高さ方向に亘って取り付けられている。 [B-3] Vertical frame As shown in FIG. 4, the vertical frame 4 has an indoor side facing portion 40, an inner facing surface 41 extending from the inner side of the facing direction of the indoor side facing portion 40 to the outdoor side, and an outer facing surface 42 extending from the outer side of the facing direction of the indoor side facing surface 40 to the outdoor side. The outer facing surface 42 extends to the outdoor side relative to the indoor facing surface 41, and an outdoor side facing portion 43 extending outward from the outdoor side end of the outdoor side facing surface 42 is formed. A pocket portion facing the outdoor side is integrally formed at the tip of the inner facing surface 41 of the vertical frame 4, and an indoor side sealing material S4 is attached to the pocket portion along the height direction. A pocket portion facing inward is integrally formed on the inner surface of the outdoor side portion of the outdoor side facing surface 42 of the vertical frame 4, and an outdoor side sealing material S5 is attached to the pocket portion along the height direction.

図４に示すように、縦枠５は、室内側見付部５０と、室内側見付部５０の見付方向内側から室外側に延びる内側見込面５１と、室内側見付部５０の見付方向外側から室外側に延びる外側見込面５２と、を備えている。外側見込面５２は、内側見込面５１に対して室外側に延びており、外側見込面５２の室外側端部から外側に延びる室外側見付部５３が形成されている。縦枠５の内側見込面５１の先端には、室外側に向くポケット部が一体形成されており、ポケット部には室内側シール材Ｓ６が高さ方向に亘って取り付けられている。縦枠５の外側見込面５２の室外側部位の内面にはポケット部が内側に向いて一体形成されており、ポケット部には室外側シール材Ｓ７が高さ方向に亘って取り付けられている。 As shown in FIG. 4, the vertical frame 5 has an interior facing portion 50, an interior facing surface 51 extending from the interior side of the facing direction of the interior facing portion 50 to the exterior side, and an exterior facing surface 52 extending from the exterior side of the facing direction of the interior facing portion 50 to the exterior side. The exterior facing surface 52 extends to the exterior side relative to the interior facing surface 51, and an exterior facing portion 53 is formed extending outward from the exterior end of the exterior facing surface 52. A pocket portion facing the exterior side is integrally formed at the tip of the interior facing surface 51 of the vertical frame 5, and an interior sealing material S6 is attached to the pocket portion along the height direction. A pocket portion facing inward is integrally formed on the inner surface of the exterior part of the exterior facing surface 52 of the vertical frame 5, and an exterior sealing material S7 is attached to the pocket portion along the height direction.

［Ｂ―４］窓枠の見付部と障子の見付部との位置関係
図３に示すように、上枠２の室内側見付部２０の上側部位２００と下枠３の室内側見付部３０は面一である。下枠３の室外側見付部３３の高さ方向中央は、上枠２の室外側見付部２１と面一の室外側見付面３３０となっている。図４に示すように、縦枠４の室内側見付部４０と縦枠５の室内側見付部５０は面一であり、縦枠４の室外側見付部４３と縦枠５の室外側見付部５３は面一である。本実施形態に係る窓装置において、側面視及び平面視において、窓枠の室内側見付面（室内側見付部２０の上側部位２００、室内側見付部３０、室内側見付部４０、５０）は、全閉姿勢の障子１の室内側見付部（後述する室内側見付面６０、７０、８０、９０）から室内側に離間した位置にあり、窓枠の室外側見付面（室外側見付部２１、室外側見付面３３０、室外側見付部４３、５３）は、全閉姿勢の障子１の室外側見付部（後述する室外側見付面６１、７１、８１、９１）に近接した位置にある。 [B-4] Positional relationship between the facing part of the window frame and the facing part of the shoji screenAs shown in Figure 3, the upper part 200 of the interior facing part 20 of the upper frame 2 and the interior facing part 30 of the lower frame 3 are flush with each other. The center of the height direction of the exterior facing part 33 of the lower frame 3 is the exterior facing surface 330 that is flush with the exterior facing part 21 of the upper frame 2.As shown in Figure 4, the interior facing part 40 of the vertical frame 4 and the interior facing part 50 of the vertical frame 5 are flush with each other, and the exterior facing part 43 of the vertical frame 4 and the exterior facing part 53 of the vertical frame 5 are flush with each other. In the window device of this embodiment, when viewed from the side and in a plan view, the indoor facing surface of the window frame (the upper part 200 of the indoor facing portion 20, the indoor facing portion 30, the indoor facing portions 40, 50) is located away from the indoor facing portion of the shoji screen 1 in the fully closed position (indoor facing surfaces 60, 70, 80, 90 described later), and the outdoor facing surface of the window frame (outdoor facing portion 21, outdoor facing surface 330, outdoor facing portions 43, 53) is located close to the outdoor facing portion of the shoji screen 1 in the fully closed position (outdoor facing surfaces 61, 71, 81, 91 described later).

［Ｃ］障子の詳細
［Ｃ―１］障子の上框及び上端部位の構成
図３に示すように、障子１の上框６は、室内側見付面６０と、室外側見付面６１と、室内側見付面６０及び室外側見付面６１の上方部位を接続する上面６２と、上面６２の下方に離間して、室内側見付面６０と室外側見付面６１の間を接続する中間上面６３と、を備えており、上面６２と中間上面６３の間には上側中空部Ｈ１が形成されている。室内側見付面６０の下端部位と室外側見付面６１の下端部位は離間しており、室内側見付面６０の下端部位と室外側見付面６１の下端部位の間にガラス板１０の上端部位が受け入れられて固定されている。本実施形態に係る上框６は、２部材を組み合わせて構成されているが、１部材から一体形成してもよい。 [C] Details of the Shoji [C-1] Configuration of the upper frame and upper end part of the Shoji As shown in FIG. 3, the upper frame 6 of the Shoji 1 has an interior facing surface 60, an exterior facing surface 61, an upper surface 62 connecting the upper parts of the interior facing surface 60 and the exterior facing surface 61, and an intermediate upper surface 63 spaced below the upper surface 62 and connecting the interior facing surface 60 and the exterior facing surface 61, and an upper hollow part H1 is formed between the upper surface 62 and the intermediate upper surface 63. The lower end part of the interior facing surface 60 and the lower end part of the exterior facing surface 61 are spaced apart, and the upper end part of the glass plate 10 is received and fixed between the lower end part of the interior facing surface 60 and the lower end part of the exterior facing surface 61. The upper frame 6 according to this embodiment is constructed by combining two members, but may be integrally formed from one member.

室内側見付面６０の下端は、室外側に向かって折曲片６００が一体形成されており、折曲片には室内側ガスケット（固定用シール材）Ｇ１が設けてあり、室外側見付面６１の下端には、室内側に向くポケット部６１０が一体形成されており、ポケット部６１０には室外側ガスケットＧ２が設けられている。ガラス板１０の上端部位は、室内側ガスケットＧ１と室外側ガスケットＧ２で挟持されており、室内側ガスケットＧ１がガラス板１０の室内側面部１００の上端部位に密着し、室外側ガスケットＧ２がガラス板１０の室外側面部１０１の上端部位に密着している。 The lower end of the indoor facing surface 60 is integrally formed with a folded piece 600 facing the outdoor side, and the folded piece is provided with an indoor side gasket (fixing seal material) G1, and the lower end of the outdoor facing surface 61 is integrally formed with a pocket portion 610 facing the indoor side, and the pocket portion 610 is provided with an outdoor side gasket G2. The upper end portion of the glass plate 10 is sandwiched between the indoor side gasket G1 and the outdoor side gasket G2, with the indoor side gasket G1 in close contact with the upper end portion of the indoor side surface portion 100 of the glass plate 10, and the outdoor side gasket G2 in close contact with the upper end portion of the outdoor side surface portion 101 of the glass plate 10.

ガラス板１０の上端面１０２と中間上面６３とは離間しており、その間に下側空間Ｈ２が形成されている。上框６の内部空間は、中間上面６３を挟んで、上側中空部Ｈ１と下側空間Ｈ２に分割されている。 The upper end surface 102 of the glass plate 10 is spaced apart from the middle upper surface 63, forming a lower space H2 between them. The internal space of the upper frame 6 is divided by the middle upper surface 63 into an upper hollow portion H1 and a lower space H2.

上側中空部Ｈ１には、補強部材６４が設けてある。補強部材６４は、障子１の上框６の全幅に延びる長尺部材であり（図５、図６参照）、上側中空部Ｈ１の見込寸法と略同じ幅を備えた面部６４０と、面部６４０の幅方向両端に一体形成された室内側折曲片６４１、室外側折曲片６４２と、から断面視コ字形状を備えている。図示の態様では、補強部材６４は、面部６４０を上面、室内側折曲片６４１、室外側折曲片６４２を垂下片とした姿勢で、面部６４０が上面６２に近接し、室内側折曲片６４１、室外側折曲片６４２がそれぞれ、室内側見付面６０、室外側見付面６１に近接し、室内側折曲片６４１、室外側折曲片６４２の下端が、中間上面６３の見込方向の端部にそれぞれ当接した状態で、上側中空部Ｈ１に収容されている。本実施形態では、補強部材６４を、面部６４０を上側に位置させた姿勢で収容することで、面部６４０の下側に中間上面６３に形成したビスホールを受け入れる空間が形成され、上框６の見付面の高さ寸法を小さくすることができ、スッキリとした外観とすることができる。 A reinforcing member 64 is provided in the upper hollow portion H1. The reinforcing member 64 is a long member that extends across the entire width of the upper frame 6 of the shoji screen 1 (see Figures 5 and 6), and has a U-shaped cross-sectional shape made up of a surface portion 640 with a width approximately the same as the projected dimension of the upper hollow portion H1, and an interior bent piece 641 and an exterior bent piece 642 that are integrally formed at both ends of the width of the surface portion 640. In the illustrated embodiment, the reinforcing member 64 is housed in the upper hollow portion H1 with the face portion 640 as the upper surface, the indoor bent piece 641 and the outdoor bent piece 642 as the hanging pieces, the face portion 640 being close to the upper surface 62, the indoor bent piece 641 and the outdoor bent piece 642 being close to the indoor facing surface 60 and the outdoor facing surface 61, respectively, and the lower ends of the indoor bent piece 641 and the outdoor bent piece 642 being abutted against the ends of the intermediate upper surface 63 in the projection direction. In this embodiment, by housing the reinforcing member 64 with the face portion 640 positioned on the upper side, a space is formed below the face portion 640 to receive the screw holes formed in the intermediate upper surface 63, and the height dimension of the facing surface of the upper frame 6 can be reduced, resulting in a neat appearance.

中間上面６３の下面には、下側空間Ｈ２に面してポケット部が形成されており、ポケット部には熱膨張耐火部材６３０が上框６の全長に亘って設けてある。室内側見付面６０の内面の下端には、室内側折曲片６００との隅部に位置して熱膨張耐火部材６０００が上框６の全長に亘って設けてある。室外側ガスケットＧ２は、樹脂と熱膨張耐火材料からなる複合材である。 A pocket is formed on the underside of the middle upper surface 63 facing the lower space H2, and a thermally expandable fire-resistant member 630 is provided in the pocket over the entire length of the upper frame 6. At the lower end of the inner surface of the indoor facing surface 60, a thermally expandable fire-resistant member 6000 is provided over the entire length of the upper frame 6, located at the corner with the indoor bent piece 600. The outdoor gasket G2 is a composite material made of resin and a thermally expandable fire-resistant material.

室内側見付面６０の上端には突片６０１が一体形成されており、障子１が全閉姿勢にある時に、上枠２の室内側シール材Ｓ１が上框６の突片６０１に当接し、上枠２の室外側シール材Ｓ２が上框６の室外側見付面６１と上面６２との角部に形成した突片６２０に当接するようになっており、最上位の障子１の上框６が窓枠の上枠２に密接している。 A protrusion 601 is integrally formed at the upper end of the interior facing surface 60, and when the shoji screen 1 is in a fully closed position, the interior sealing material S1 of the upper frame 2 abuts against the protrusion 601 of the upper frame 6, and the exterior sealing material S2 of the upper frame 2 abuts against the protrusion 620 formed at the corner between the exterior facing surface 61 and the top surface 62 of the upper frame 6, so that the upper frame 6 of the top shoji screen 1 is in close contact with the upper frame 2 of the window frame.

［Ｃ―２］障子の下框及び下端部位の構成
障子１の下框７は、室内側見付面７０と、室外側見付面７１と、室内側見付面７０及び室外側見付面７１の下方部位を接続する下面７２と、下面７２の上方に離間して、室内側見付面７０と室外側見付面７１の間を接続する中間下面７３と、を備えており、下面７２と中間下面７３の間には下側中空部Ｈ３が形成されている。下框７の内部空間は、中間下面７３を挟んで、下側中空部Ｈ３と上側空間Ｈ４に分割されている。室内側見付面７０の上端部位と室外側見付面７１の上端部位は離間しており、室内側見付面７０の上端部位と室外側見付面７１の上端部位の間にガラス板１０の下端部位が受け入れられて固定されている。 [C-2] Configuration of the bottom frame and lower end of the shoji screen The bottom frame 7 of the shoji screen 1 has an interior facing surface 70, an exterior facing surface 71, a lower surface 72 that connects the lower parts of the interior facing surface 70 and the exterior facing surface 71, and an intermediate lower surface 73 that is spaced above the lower surface 72 and connects the interior facing surface 70 and the exterior facing surface 71, and a lower hollow portion H3 is formed between the lower surface 72 and the intermediate lower surface 73. The internal space of the bottom frame 7 is divided into a lower hollow portion H3 and an upper space H4 by the intermediate lower surface 73. The upper end portion of the interior facing surface 70 and the upper end portion of the exterior facing surface 71 are spaced apart, and the lower end portion of the glass plate 10 is received and fixed between the upper end portion of the interior facing surface 70 and the upper end portion of the exterior facing surface 71.

室内側見付面７０の上端は、室外側に向かって折曲片７００が一体形成されており、折曲片７００には室内側ガスケットＧ３が設けてあり、室外側見付面７１の上端には、室内側に向くポケット部７１０が一体形成されており、ポケット部７１０には室外側ガスケットＧ４が設けられている。ガラス板１０の下端部位は、室内側ガスケットＧ３と室外側ガスケットＧ４で挟持されており、室内側ガスケットＧ３がガラス板１０の室内側面部１００の下端部位に密着し、室外側ガスケットＧ４がガラス板１０の室外側面部１０１の下端部位に密着している。 The upper end of the indoor facing surface 70 is integrally formed with a folded piece 700 facing the outdoor side, and the folded piece 700 is provided with an indoor side gasket G3, and the upper end of the outdoor facing surface 71 is integrally formed with a pocket portion 710 facing the indoor side, and the pocket portion 710 is provided with an outdoor side gasket G4. The lower end portion of the glass plate 10 is sandwiched between the indoor side gasket G3 and the outdoor side gasket G4, with the indoor side gasket G3 in close contact with the lower end portion of the indoor side surface portion 100 of the glass plate 10, and the outdoor side gasket G4 in close contact with the lower end portion of the outdoor side surface portion 101 of the glass plate 10.

中間下面７３の下面には、上側空間Ｈ４に面して、断面視皿状ないし凹状のポケット部が形成されており、ポケット部には下框７の長さ方向に亘って熱膨張耐火部材７３０が設けてある。中間下面７３には、熱膨張耐火部材７３０の上側に位置して、幅方向に間隔を存して複数個、本実施形態では２個のセッティングブロック７４が設けてあり、ガラス板１０の下端面１０３は、セッティングブロック７４の上面７４０に載置されており、ガラス板１０は、セッティングブロック７４によって支持されている。 A pocket portion that is dish-shaped or concave in cross section is formed on the lower surface of the intermediate lower surface 73 facing the upper space H4, and a thermal expansion fireproof member 730 is provided in the pocket portion along the length of the lower frame 7. A plurality of setting blocks 74 (two in this embodiment) are provided on the intermediate lower surface 73, positioned above the thermal expansion fireproof member 730, spaced apart in the width direction, and the lower end surface 103 of the glass plate 10 is placed on the upper surface 740 of the setting block 74, and the glass plate 10 is supported by the setting block 74.

下框７の下面７２の室内側端部の下面には室内側へ向くポケット部７２０が一体形成されており、ポケット部には、室内側見付面７０の下方に位置するようにシール材Ｓ８が取り付けられている。下框７の室外側見付面７１の下端は、下面７２を超えて下方に延びる下側突片７１１が一体形成されており、下側突片７１１は、室外側見付面７１に対して室外側に位置して垂下している。下側突片７１１の基端部には室内側に向くポケット部７２１が一体形成されており、ポケット部７２１には、シール材Ｓ９が取り付けられている。シール材Ｓ９は、下側突片７１１の垂下片の内側に位置して対向して垂下する薄肉の垂下片を備えている。 A pocket portion 720 facing the interior side is integrally formed on the underside of the indoor end of the underside 72 of the lower frame 7, and a sealant S8 is attached to the pocket portion so that it is located below the indoor facing surface 70. A lower protrusion 711 that extends downward beyond the underside 72 is integrally formed on the lower end of the outdoor facing surface 71 of the lower frame 7, and the lower protrusion 711 is located on the outdoor side relative to the outdoor facing surface 71 and hangs down. A pocket portion 721 facing the interior side is integrally formed at the base end of the lower protrusion 711, and a sealant S9 is attached to the pocket portion 721. The sealant S9 has a thin-walled hanging piece that is located inside the hanging piece of the lower protrusion 711 and hangs down opposite it.

複数枚の障子１が全閉姿勢にある時に、下側の障子１の上框６の室内側の突片６０１が、上側の障子１の下框７の室内側のシール材Ｓ８に当接し、下側の障子１の上框６の室外側の突片６２０が、上側の障子１の下框７の室外側のシール材Ｓ９の垂下片に当接し、上側の障子１の下框７の下側突片７１１が下側の障子１の上框６の室外側見付面６１の上方部位の室外側に位置して、当該上方部位に対向して垂下している。このようにして、上側に位置する障子の下框と下側に障子の上框とが密接して召し合わせ部Ａが形成されている。 When multiple shoji screens 1 are in a fully closed position, the indoor side protrusion 601 of the upper frame 6 of the lower shoji screen 1 abuts against the indoor side sealant S8 of the lower frame 7 of the upper shoji screen 1, the outdoor side protrusion 620 of the upper frame 6 of the lower shoji screen 1 abuts against the hanging piece of the outdoor side sealant S9 of the lower frame 7 of the upper shoji screen 1, and the lower side protrusion 711 of the lower frame 7 of the upper shoji screen 1 is located on the outdoor side of the upper part of the outdoor side visible surface 61 of the upper frame 6 of the lower shoji screen 1 and hangs down opposite said upper part. In this way, the lower frame of the upper shoji screen and the upper frame of the lower shoji screen are in close contact with each other to form a joint A.

最下位の障子１の下框７において、室内側のポケット部７２０には、シール材は取り付けられておらず、室外側のボケット部７２１に取り付けられたシール材Ｓ１０は、シール材Ｓ９に比べて肉厚の垂下片を備えている。最下位の障子１が全閉姿勢にある時に、下枠３の室内側シール材Ｓ３に下框７の室内側見付面７０が当接し、下框７の室外側に設けたシール材Ｓ１０の垂下片が、下枠３の下面部３２の室外側端部に形成した折曲片３２０に当接するようになっており、最下位の障子１の下框７が窓枠の上枠３に密接している。 In the bottom frame 7 of the lowest shoji screen 1, no sealant is attached to the pocket portion 720 on the indoor side, and the sealant S10 attached to the pocket portion 721 on the outdoor side has a thicker hanging piece than the sealant S9. When the lowest shoji screen 1 is in the fully closed position, the indoor side visible surface 70 of the bottom frame 7 abuts against the indoor side sealant S3 of the bottom frame 3, and the hanging piece of the sealant S10 on the outdoor side of the bottom frame 7 abuts against the bent piece 320 formed on the outdoor side end of the bottom surface portion 32 of the bottom frame 3, so that the bottom frame 7 of the lowest shoji screen 1 is in close contact with the upper frame 3 of the window frame.

図３に示すように、最下位の障子１の下側中空部Ｈ３には、補強部材７５が設けてある。補強部材７５は、障子１の下框７の全幅に延びる長尺部材であり（図６参照）、下側中空部Ｈ３の見込寸法と略同じ幅を備えた面部７５０と、面部７５０の幅方向両端に一体形成された室内側折曲片７５１、室外側折曲片７５２と、から断面視コ字形状を備えている。図示の態様では、補強部材７５は、面部７５０を上面、室内側折曲片７５１、室外側折曲片７５２を垂下片とした姿勢で、面部７５０が中間下面７３に近接し、室内側折曲片７５１、室外側折曲片７５２がそれぞれ、室内側見付面７０、室外側見付面７１に近接し、室内側折曲片７５１、室外側折曲片７５２の下端が、下面７２の見込方向の端部にそれぞれ当接した状態で、下側中空部Ｈ３に収容されている。最下位の障子１において、仮に補強部材７５の面部７５０を下面７２に接触させた皿状の姿勢とすると、下框７と縦框８、９との接合部位から雨水が浸水することで錆が発生し易いが、本実施形態では、面部７５０を上側にした姿勢で収容することで、雨水が溜ることを可及的に防止している。また、各障子１の縦框８、９の下端には、水抜き孔８４が形成されている（図２参照）。 As shown in Figure 3, a reinforcing member 75 is provided in the lower hollow portion H3 of the lowest shoji screen 1. The reinforcing member 75 is a long member that extends across the entire width of the bottom frame 7 of the shoji screen 1 (see Figure 6), and has a U-shaped cross-sectional shape made up of a surface portion 750 with a width approximately the same as the projected dimension of the lower hollow portion H3, and an interior bent piece 751 and an exterior bent piece 752 that are integrally formed at both ends of the width of the surface portion 750. In the illustrated embodiment, the reinforcing member 75 is housed in the lower hollow portion H3 with the surface portion 750 as the upper surface, the interior bent piece 751 and the exterior bent piece 752 as the hanging pieces, the surface portion 750 being adjacent to the intermediate lower surface 73, the interior bent piece 751 and the exterior bent piece 752 being adjacent to the interior facing surface 70 and the exterior facing surface 71, respectively, and the lower ends of the interior bent piece 751 and the exterior bent piece 752 being in contact with the end portions in the projection direction of the lower surface 72. In the lowest shoji 1, if the surface portion 750 of the reinforcing member 75 is in a dish-like position in contact with the lower surface 72, rainwater will seep in from the joints between the lower frame 7 and the vertical frames 8 and 9, which will easily cause rust. However, in this embodiment, the surface portion 750 is housed in an upward position to prevent rainwater from accumulating as much as possible. Additionally, drainage holes 84 are formed at the lower ends of the vertical frames 8 and 9 of each shoji screen 1 (see Figure 2).

［Ｃ―３］障子の縦框及び側端部位の構成
障子１の縦框８は、室内側見付面８０と、室外側見付面８１と、室内側見付面８０及び室外側見付面８１の見付方向外側部位を接続する側端面８２と、側端面８２の見付方向内側に離間して、室内側見付面８０と室外側見付面８１の間を接続する中間見込面８３と、を備えており、側端面８２と中間見込面８３の間には外側中空部Ｈ５が形成されている。室外側見付面８１には側端面８２に対して外側に突出する突出部８１１が一体形成されている。室内側見付面８０の内側端部と室外側見付面８１の内側端部は離間しており、室内側見付面８０の内側端部と室外側見付面８１の内側端部の間にガラス板１０の一方の側端部位が受け入れられて固定されている。 [C-3] Configuration of the vertical frame and side end portion of the shoji screen The vertical frame 8 of the shoji screen 1 has an interior facing surface 80, an exterior facing surface 81, a side end surface 82 that connects the exterior parts of the interior facing surface 80 and the exterior facing surface 81 in the facing direction, and an intermediate facing surface 83 that connects the interior facing surface 80 and the exterior facing surface 81, spaced apart on the inside of the facing direction of the side end surface 82, and an outer hollow portion H5 is formed between the side end surface 82 and the intermediate facing surface 83. The exterior facing surface 81 is integrally formed with a protruding portion 811 that protrudes outward from the side end surface 82. The inner end of the interior facing surface 80 and the inner end of the exterior facing surface 81 are spaced apart, and one side end portion of the glass plate 10 is received and fixed between the inner end of the interior facing surface 80 and the inner end of the exterior facing surface 81.

室内側見付面８０の見付方向内側端には、折曲片８００が室外側に向かって一体形成されており、折曲片８００には室内側ガスケットＧ５が設けてあり、室外側見付面８１の見付方向内側端には、室内側に向くポケット部８１０が一体形成されており、ポケット部８１０には室外側ガスケットＧ６が設けられている。ガラス板１０の一方の側端部位は、室内側ガスケットＧ５と室外側ガスケットＧ６で挟持されており、室内側ガスケットＧ５がガラス板１０の室内側面部１００の一方の側端部位に密着し、室外側ガスケットＧ６がガラス板１０の室外側面部１０１の一方の側端部位に密着している。 A folded piece 800 is integrally formed facing the exterior of the room at the inner end of the interior facing surface 80 in the facing direction, and an interior gasket G5 is provided on the folded piece 800. A pocket portion 810 facing the interior of the room is integrally formed at the inner end of the exterior facing surface 81 in the facing direction, and an exterior gasket G6 is provided on the pocket portion 810. One side edge portion of the glass sheet 10 is sandwiched between the interior gasket G5 and the exterior gasket G6, with the interior gasket G5 in close contact with one side edge portion of the interior side surface portion 100 of the glass sheet 10, and the exterior gasket G6 in close contact with one side edge portion of the exterior side surface portion 101 of the glass sheet 10.

ガラス板１０の一方の側端面１０４と中間見込面８３とは離間しており、縦框８には内側空間Ｈ６が形成されている。縦框８の内部空間は、中間見込面８３を挟んで、外側中空部Ｈ５と内側空間Ｈ６とに分割されている。中間見込面８３には、内側空間Ｈ６に面してポケット部が形成されており、ポケット部には高さ方向に亘って熱膨張耐火部材８３０が設けてある。室内側見付面８０の見付方向内側端には、室内側折曲片８００との隅部に位置して熱膨張耐火部材８０００が高さ方向に亘って設けてある。室外側ガスケットＧ６は、樹脂と熱膨張耐火材料からなる複合材である。 One side end surface 104 of the glass plate 10 is spaced apart from the intermediate projection surface 83, and an inner space H6 is formed in the vertical frame 8. The internal space of the vertical frame 8 is divided into an outer hollow portion H5 and an inner space H6 by the intermediate projection surface 83. A pocket portion is formed in the intermediate projection surface 83 facing the inner space H6, and a thermally expandable fire-resistant member 830 is provided in the pocket portion along the height direction. At the inner end of the indoor side projection surface 80 in the projection direction, a thermally expandable fire-resistant member 8000 is provided along the height direction at the corner with the indoor side bent piece 800. The outdoor side gasket G6 is a composite material made of resin and a thermally expandable fire-resistant material.

障子１が全閉姿勢にある時に、障子１の縦框８の室内側見付面８０が縦枠４の室内側シール材Ｓ４に当接し、室外側見付面８１の突出部８１１が室外側シール材Ｓ５に当接するようになっており、障子１の縦框８が窓枠の縦枠４に密接している。 When the shoji screen 1 is in a fully closed position, the interior facing surface 80 of the vertical frame 8 of the shoji screen 1 abuts against the interior facing material S4 of the vertical frame 4, and the protruding portion 811 of the exterior facing surface 81 abuts against the exterior facing material S5, so that the vertical frame 8 of the shoji screen 1 is in close contact with the vertical frame 4 of the window frame.

障子１の縦框９は、室内側見付面９０と、室外側見付面９１と、室内側見付面９０及び室外側見付面９１の見付方向外側部位を接続する側端面９２と、側端面９２の見付方向内側に離間して、室内側見付面９０と室外側見付面９１の間を接続する中間見込面９３と、を備えており、側端面９２と中間見込面９３の間には外側中空部Ｈ７が形成されている。室外側見付面９１には側端面９２に対して外側に突出する突出部９１１が一体形成されている。室内側見付面９０の内側端部と室外側見付面９１の内側端部は離間しており、室内側見付面９０の内側端部と室外側見付面９１の内側端部の間にガラス板１０の他方の側端部位が受け入れられて固定されている。 The vertical frame 9 of the shoji screen 1 has an interior facing surface 90, an exterior facing surface 91, a side end surface 92 that connects the exterior parts of the interior facing surface 90 and the exterior facing surface 91 in the facing direction, and an intermediate facing surface 93 that is spaced inward in the facing direction of the side end surface 92 and connects the interior facing surface 90 and the exterior facing surface 91, and an outer hollow portion H7 is formed between the side end surface 92 and the intermediate facing surface 93. A protrusion 911 that protrudes outward from the side end surface 92 is integrally formed on the exterior facing surface 91. The inner end of the interior facing surface 90 and the inner end of the exterior facing surface 91 are spaced apart, and the other side end portion of the glass plate 10 is received and fixed between the inner end of the interior facing surface 90 and the inner end of the exterior facing surface 91.

室内側見付面９０の見付方向内側端には、折曲片９００が室外側に向かって一体形成されており、折曲片９００には室内側ガスケットＧ７が設けてあり、室外側見付面９１の見付方向内側端には、室内側に向くポケット部９１０が一体形成されており、ポケット部９１０には室外側ガスケットＧ８が設けられている。ガラス板１０の他方の側端部位は、室内側ガスケットＧ７と室外側ガスケットＧ８で挟持されており、室内側ガスケットＧ７がガラス板１０の室内側面部１００の他方の側端部位に密着し、室外側ガスケットＧ８がガラス板１０の室外側面部１０１の他方の側端部位に密着している。 A folded piece 900 is integrally formed facing the exterior of the room at the inner end of the interior facing surface 90 in the facing direction, and an interior gasket G7 is provided on the folded piece 900. A pocket portion 910 facing the interior of the room is integrally formed at the inner end of the exterior facing surface 91 in the facing direction, and an exterior gasket G8 is provided on the pocket portion 910. The other side edge portion of the glass sheet 10 is sandwiched between the interior gasket G7 and the exterior gasket G8, with the interior gasket G7 in close contact with the other side edge portion of the interior side surface portion 100 of the glass sheet 10, and the exterior gasket G8 in close contact with the other side edge portion of the exterior side surface portion 101 of the glass sheet 10.

ガラス板１０の他方の側端面１０５と中間見込面９３とは離間しており、縦框９には内側空間Ｈ８が形成されている。縦框９の内部空間は、中間見込面９３を挟んで、外側中空部Ｈ７と内側空間Ｈ８とに分割されている。中間見込面９３には、内側空間Ｈ８に面してポケット部が形成されており、ポケット部には高さ方向に亘って熱膨張耐火部材９３０が設けてある。室内側見付面９０の見付方向内側端には、室内側折曲片９００との隅部に位置して熱膨張耐火部材９０００が高さ方向に亘って設けてある。室外側ガスケットＧ８は、樹脂と熱膨張耐火材料からなる複合材である。 The other side end surface 105 of the glass plate 10 is spaced apart from the intermediate projection surface 93, and an inner space H8 is formed in the vertical frame 9. The internal space of the vertical frame 9 is divided into an outer hollow portion H7 and an inner space H8 by the intermediate projection surface 93. A pocket portion is formed in the intermediate projection surface 93 facing the inner space H8, and a thermally expandable fire-resistant member 930 is provided in the pocket portion along the height direction. At the inner end of the indoor side projection surface 90 in the projection direction, a thermally expandable fire-resistant member 9000 is provided along the height direction at the corner with the indoor side bent piece 900. The outdoor side gasket G8 is a composite material made of resin and a thermally expandable fire-resistant material.

障子１が全閉姿勢にある時に、障子１の縦框９の室内側見付面９０が縦枠５の室内側シール材Ｓ６に当接し、室外側見付面９１の突出部９１１が室外側シール材Ｓ８に当接するようになっており、障子１の縦框９が窓枠の縦枠５に密接している。 When the shoji screen 1 is in a fully closed position, the interior facing surface 90 of the vertical frame 9 of the shoji screen 1 abuts against the interior facing material S6 of the vertical frame 5, and the protruding portion 911 of the exterior facing surface 91 abuts against the exterior facing material S8, so that the vertical frame 9 of the shoji screen 1 is in close contact with the vertical frame 5 of the window frame.

［Ｄ］防火構造
［Ｄ―１］背景
本実施形態に係る窓装置は、上枠２と下枠３と左右の縦枠４、５からなり、窓開口部を形成する窓枠と、窓枠に上下方向に連設され、窓開口部を開閉する複数の障子１と、からなり、窓開口部全閉状態では、最上位の障子１の上框６が上枠２に密接し、最下位の障子１の下框７が下枠３に密接し、上側に位置する障子１の下框７と下側に位置する障子１の上框６とが密接して召し合わせ部Ａが形成されている。この状態において、所定時間加熱された時であっても、障子１によって仕切られた室外側空間と室内側空間との間に防火上不利な隙間が生じないようにすることが重要である。 [D] Fireproof Structure [D-1] Background The window device according to this embodiment is made up of a window frame that is made up of an upper frame 2, a lower frame 3, and left and right vertical frames 4 and 5, which form a window opening, and a number of shoji screens 1 that are vertically connected to the window frame and open and close the window opening. When the window opening is fully closed, the upper frame 6 of the top shoji screen 1 is in close contact with the upper frame 2, the lower frame 7 of the bottom shoji screen 1 is in close contact with the lower frame 3, and the lower frame 7 of the upper shoji screen 1 and the upper frame 6 of the lower shoji screen 1 are in close contact with each other to form a joint A. In this state, it is important that no gaps that are disadvantageous in terms of fire prevention are formed between the outside space and the inside space partitioned by the shoji screens 1, even when heated for a certain period of time.

［Ｄ―２］框に補強部材を設けた防火構造
本実施形態では、上下方向に連設された複数枚の障子１において、最上位の障子１の上框６には補強部材６４が幅方向に亘って設けられ、最下位の障子１の下框７には補強部材７５が幅方向に亘って設けてある。本実施形態に係る障子１の框はアルミニウム製であるのに対して、補強部材６４、７５は、アルミニウムよりも高い融点を備えた金属、例えば、スチール製である。 [D-2] Fireproof structure with reinforcing members on the frames In this embodiment, in a plurality of vertically connected shoji screens 1, a reinforcing member 64 is provided across the width of the upper frame 6 of the top shoji screen 1, and a reinforcing member 75 is provided across the width of the lower frame 7 of the bottom shoji screen 1. The frame of the shoji screen 1 according to this embodiment is made of aluminum, whereas the reinforcing members 64, 75 are made of a metal with a higher melting point than aluminum, such as steel.

火災時の加熱によって、障子１の水平方向に延びる上框６、下框７が変形するおそれがあるが、最上位の障子１の上框６に幅方向に延びる補強部材６４を設けることで、火災時の熱によって上框６が変形することを可及的に抑制し、全閉状態にある窓開口部の上端部位（最上位の障子１の上框６と窓枠の上枠２との間）に隙間が形成されることを可及的に防止し、最下位の障子１の下框７に幅方向に延びる補強部材７５を設けることで、火災時の熱によって下框７が変形することを可及的に抑制し、全閉状態にある窓開口部の下端部位（最下位の障子１の下框７と窓枠の下枠３との間）に隙間が形成されることを可及的に防止する。 The upper and lower frames 6 and 7 of the shoji screens 1, which extend horizontally, may deform due to heat during a fire, but by providing a reinforcing member 64 extending in the width direction on the upper frame 6 of the top shoji screen 1, deformation of the upper frame 6 due to heat during a fire is minimized, and gaps are prevented from forming at the upper end of the window opening in a fully closed state (between the upper frame 6 of the top shoji screen 1 and the upper frame 2 of the window frame), and by providing a reinforcing member 75 extending in the width direction on the lower frame 7 of the lowest shoji screen 1, deformation of the lower frame 7 due to heat during a fire is minimized, and gaps are prevented from forming at the lower end of the window opening in a fully closed state (between the lower frame 7 of the lowest shoji screen 1 and the lower frame 3 of the window frame).

上記技術思想は、１枚の障子で窓開口部を開閉する窓装置にも適用することができる。具体的には、１枚の障子の上框、下框にそれぞれ幅方向に延びる補強部材を設けることで、火災時の熱によって、上框、下框が変形することを可及的に抑制し、障子の上端部位と上枠、障子の下端部位と下枠との間に隙間が生じることを可及的に防止することができる。 The above technical concept can also be applied to a window device that opens and closes a window opening with a single shoji screen. Specifically, by providing reinforcing members that extend in the width direction on the upper and lower frames of a single shoji screen, deformation of the upper and lower frames due to heat during a fire can be suppressed as much as possible, and gaps can be prevented as much as possible from occurring between the upper end of the shoji screen and the upper frame, and between the lower end of the shoji screen and the lower frame.

本実施形態では、上側に位置する障子１の下框７と下側に位置する障子１の上框６から形成される召し合わせ部Ａにおいて、下側に位置する障子１の上框６には、幅方向に亘って補強部材６４が設けてある。上述の通り、補強部材は、アルミニウムよりも高い融点を備えた金属、例えば、スチール製である。 In this embodiment, at the joint A formed by the lower frame 7 of the upper shoji screen 1 and the upper frame 6 of the lower shoji screen 1, a reinforcing member 64 is provided across the width of the upper frame 6 of the lower shoji screen 1. As described above, the reinforcing member is made of a metal with a higher melting point than aluminum, such as steel.

火災時の加熱によって、障子１の水平方向に延びる上框６、下框７が変形するおそれがあり、召し合わせ部Ａを形成する上框６及び下框７が変形すると、召し合わせ部Ａに隙間が生じるおそれがある。本実施形態では、召し合わせ部Ａを形成する上框６に幅方向に延びる補強部材６４を設けることで、火災時の熱で上框６の変形を可及的に抑制し、上下に隣接して窓開口部を全閉する上下の障子１の隣接部に隙間が形成されることを可及的に防止している。火災時の熱によって、上側の障子１の下框７が下方に垂れるように変形するおそれがあるが、この下框７の下方に近接する下側の障子１の上框６が上側の下框７の変形に対抗し、召し合わせ部Ａに隙間が形成されることを可及的に防止する。 The heat generated during a fire may cause the horizontally extending upper and lower frames 6 and 7 of the shoji screen 1 to deform, and if the upper and lower frames 6 and 7 that form the joint A deform, a gap may form at the joint A. In this embodiment, a reinforcing member 64 extending in the width direction is provided on the upper frame 6 that forms the joint A, thereby minimizing the deformation of the upper frame 6 due to heat during a fire and preventing the formation of a gap in the adjacent part of the upper and lower shoji screens 1 that are adjacent vertically and completely close the window opening. The heat generated during a fire may cause the lower frame 7 of the upper shoji screen 1 to deform so that it sags downward, but the upper frame 6 of the lower shoji screen 1 that is adjacent below the lower frame 7 resists the deformation of the upper lower frame 7, preventing the formation of a gap at the joint A as much as possible.

窓開口部全閉状態における召し合わせ部Ａに隙間が形成されることを防止する態様は、召し合わせ部Ａを形成する上框６に幅方向に延びる補強部材６４を設けることに限定されるものではなく、召し合わせ部Ａを形成する下框７に幅方向に延びる補強部材７５を設けてもよく、あるいは、召し合わせ部Ａを形成する上框６と下框７の両方に幅方向に延びる補強部材６４、７５を設けてもよい。 The manner of preventing the formation of gaps in the joint A when the window opening is fully closed is not limited to providing a reinforcing member 64 extending in the width direction on the upper frame 6 that forms the joint A, but may also provide a reinforcing member 75 extending in the width direction on the lower frame 7 that forms the joint A, or provide reinforcing members 64, 75 extending in the width direction on both the upper frame 6 and the lower frame 7 that form the joint A.

なお、本実施形態に係る窓装置は滑り出し窓であり、障子１の開閉時には、上端部位に比べて下端部位の移動量が大きくなっている。召し合わせ部Ａを形成する上框６に補強部材６４を設けることで、召し合わせ部Ａを形成する下框７に補強部材６４を設けた場合（補強部材６４はスチール製であり、障子１を主として構成するアルミニウムよりも比重が大きく、障子１の下端部位の重量が大きくなる）に比べて、障子１の開閉操作を軽くしている。 The window device according to this embodiment is a sliding window, and when the shoji screen 1 is opened or closed, the lower end moves a greater amount than the upper end. By providing a reinforcing member 64 on the upper frame 6 that forms the joining part A, the opening and closing operation of the shoji screen 1 is made lighter than when a reinforcing member 64 is provided on the lower frame 7 that forms the joining part A (the reinforcing member 64 is made of steel, which has a greater specific gravity than the aluminum that mainly constitutes the shoji screen 1, and the weight of the lower end of the shoji screen 1 is greater).

本実施形態に係る窓装置全体で見たときには、図３に示すように、２枚の障子１で窓開口部を開閉する場合には、上側の障子１の上框６に補強部材６４が設けられ、下側の障子１の上框６に補強部材６４が設けられ、下框７に補強部材７５が設けられる。また、図１１に示すように、４枚の障子１で窓開口部を開閉する場合には、全ての障子１（最上位の障子１、中間に位置する障子１、最下位の障子１）の上框６に補強部材６４が設けられ、最下位の障子１の下框７に補強部材７５が設けられる。本実施形態に係る補強部材６４、７５は、上框６、下框７の長さ方向に沿って延びることで、火災時の熱によって、上框６、下框７が下方に垂れるように変形することを防止する。また、障子１が火災時の熱を受けると、上框６と下框７が前後方向（室内外方向）において互いに異なる方向に圧力が作用し得るが、本実施形態に係る補強部材６４、７５の面部６４０、７５０は、障子１の厚さ方向（見込方向）に延びていることで、これらの圧力に対抗することができる。このように、水平方向に延びる所定の框に補強部材を設けることによって、各障子１の左右の縦框８、９に補強部材を設けることなく、防火構造を提供することが可能である。 When looking at the window device according to this embodiment as a whole, as shown in Figure 3, when the window opening is opened and closed with two shoji screens 1, a reinforcing member 64 is provided on the upper frame 6 of the upper shoji screen 1, a reinforcing member 64 is provided on the upper frame 6 of the lower shoji screen 1, and a reinforcing member 75 is provided on the lower frame 7. Also, as shown in Figure 11, when the window opening is opened and closed with four shoji screens 1, a reinforcing member 64 is provided on the upper frame 6 of all shoji screens 1 (the top shoji screen 1, the middle shoji screen 1, and the lowest shoji screen 1), and a reinforcing member 75 is provided on the lower frame 7 of the lowest shoji screen 1. The reinforcing members 64 and 75 according to this embodiment extend along the length of the upper frame 6 and the lower frame 7, thereby preventing the upper frame 6 and the lower frame 7 from deforming and sagging downward due to heat during a fire. In addition, when the shoji screen 1 is subjected to heat during a fire, pressure may act on the upper frame 6 and the lower frame 7 in different directions in the front-to-back direction (indoor-outdoor direction), but the surfaces 640, 750 of the reinforcing members 64, 75 according to this embodiment extend in the thickness direction (projection direction) of the shoji screen 1, and are therefore able to withstand these pressures. In this way, by providing reinforcing members to specific frames that extend horizontally, it is possible to provide a fireproof structure without providing reinforcing members to the left and right vertical frames 8, 9 of each shoji screen 1.

［Ｄ―３］四周状の框とガラス板との間の防火構造
火災時の熱によって、障子１の四周状の框とガラス板１０との間に隙間が生じて、室内外空間が連通されるおそれがある。本実施形態では、上框６において、ガラス板１０の上端部位が受け入れられた上框６の下側空間Ｈ２に面して熱膨張耐火部材６３０、６０００が幅方向に亘って設けてあり、また、ガスケットＧ２は熱膨張可能であり、下框７において、ガラス板１０の下端部位が受け入れられた下框７の上側空間Ｈ４に面して熱膨張耐火部材７０００が幅方向に亘って設けてあり、中間下面７３には熱膨張耐火部材７３０が幅方向に亘って設けてあり、また、ガスケットＧ４は熱膨張可能であり、縦框８、９において、ガラス板１０の側端部位が受け入れられた縦框８、９の内側空間に面して熱膨張耐火部材８３０、８０００、９３０、９０００が高さ方向に亘って設けてあり、また、ガスケットＧ６、Ｇ８は熱膨張可能であり、火災時の熱でこれらの熱膨張耐火部材が膨張することで、障子１の四周状の框とガラス板１０との間に隙間が生じることを可及的に防止している。 [D-3] Fireproof structure between the four-way frame and the glass sheet Heat during a fire may cause a gap between the four-way frame of the shoji screen 1 and the glass sheet 10, which may allow communication between the indoor and outdoor spaces. In this embodiment, the upper frame 6 has thermally expandable fireproof members 630, 6000 installed across the width of the upper frame 6 facing the lower space H2 of the upper frame 6 in which the upper end portion of the glass sheet 10 is received, and the gasket G2 is thermally expandable. The lower frame 7 has thermally expandable fireproof members 7000 installed across the width of the lower frame 7 facing the upper space H4 of the lower frame 7 in which the lower end portion of the glass sheet 10 is received, and the intermediate lower surface 73 has thermally expandable fireproof members 730 installed across the width of the lower frame 6. Gasket G4 is thermally expandable, and in the vertical frames 8, 9, thermally expandable fire-resistant members 830, 8000, 930, 9000 are provided along the height direction facing the inner space of the vertical frames 8, 9 into which the side ends of the glass plate 10 are received. Gaskets G6, G8 are thermally expandable, and these thermally expandable fire-resistant members expand due to the heat during a fire, thereby preventing as much as possible the occurrence of gaps between the frames circumferentially surrounding the shoji screen 1 and the glass plate 10.

［Ｄ―４］障子の下框における防火性能の向上
ガラス板１０が嵌め込まれた障子１において、障子１の下框７には、セッティングブロック７４が設けてあり、ガラス板１０の下端面１０３は、セッティングブロック７４の上面７４０に支持されている。本実施形態では、下框７の中間下面７３の皿状ないし凹状のポケット部には下框７の長さ方向に亘って熱膨張耐火部材７３０が設けてあるが、セッティングブロック７４は、熱膨張耐火部材７３０に被さるように設けてあり、セッティングブロック７４が設けた部位において、熱膨張耐火部材７３０の膨張が不十分となり、例えば、ガスケットＧ３の近傍部位を十分に閉塞できないおそれがあった。本実施形態は、障子１の下框７における防火性能をさらに向上させようとするものである。 [D-4] Improvement of fireproof performance in the bottom frame of the shoji screen In the shoji screen 1 in which the glass plate 10 is fitted, a setting block 74 is provided on the bottom frame 7 of the shoji screen 1, and the lower end surface 103 of the glass plate 10 is supported on the upper surface 740 of the setting block 74. In this embodiment, a thermal expansion fireproof member 730 is provided in the dish-shaped or concave pocket portion of the middle lower surface 73 of the bottom frame 7 along the length of the bottom frame 7, but the setting block 74 is provided so as to cover the thermal expansion fireproof member 730, and there was a risk that the expansion of the thermal expansion fireproof member 730 was insufficient in the area where the setting block 74 was provided, and for example, the area near the gasket G3 could not be sufficiently blocked. This embodiment is intended to further improve the fireproof performance of the bottom frame 7 of the shoji screen 1.

図７～図１０右図を参照しつつ、本実施形態について説明する。図７、図８に示すように、セッティングブロック７４の上面７４０の見込幅はガラス板１０の板厚よりも大きく、セッティングブロック７４の上面７４０には、ガラス板１０の下端面１０３が載っていない上面７４０´を備えている。セッティングブロック７４の上面７４０´には、ガラス板１０の室内側面部１００から離間して熱膨張耐火部材７４００が設けてある。ガラス板１０の下端面１０３とセッティングブロック７４の上面７４０と間には熱膨張耐火部材は設けられておらず、上面７４０´に設けた熱膨張耐火部材７４００は、ガラス板１０の下端面１０３のレベルよりも上方に位置している。図３に示す態様と比較すると、図３では、セッティングブロック７４の上面の見付幅は、ガラス板１０の板厚よりも少しい大きい程度の寸法であるのに対して、図７では、セッティングブロック７４の上面７４０の見付幅は、下框７の内部空間の見込寸法と略同じであり、セッティングブロック７４の上面７４０は十分な面積の上面７４０´を備えている。 This embodiment will be described with reference to the right diagrams of Figures 7 to 10. As shown in Figures 7 and 8, the projected width of the upper surface 740 of the setting block 74 is greater than the thickness of the glass plate 10, and the upper surface 740 of the setting block 74 has an upper surface 740' on which the lower end surface 103 of the glass plate 10 does not rest. A thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74, spaced apart from the interior side portion 100 of the glass plate 10. No thermal expansion fireproof member is provided between the lower end surface 103 of the glass plate 10 and the upper surface 740 of the setting block 74, and the thermal expansion fireproof member 7400 provided on the upper surface 740' is located above the level of the lower end surface 103 of the glass plate 10. Compared to the embodiment shown in FIG. 3, the visible width of the upper surface of the setting block 74 in FIG. 3 is slightly larger than the thickness of the glass sheet 10, whereas in FIG. 7, the visible width of the upper surface 740 of the setting block 74 is approximately the same as the visible dimension of the internal space of the lower frame 7, and the upper surface 740 of the setting block 74 has a sufficient area of the upper surface 740'.

本実施形態では、下框７の長さ方向に延びる熱膨張耐火部材７３０の上に設けたセッティングブロック７４の上面７４０´に熱膨張耐火部材７４００を設けたことによって、下框７の内部空間には、図８に示すように、平面視において、下框７の幅方向に連続状に延びる熱膨張耐火部材（７３０＋７４００）が設けられることになり、火災時の熱で、熱膨張耐火部材（７３０＋７４００）が下框７の内部空間の全幅に亘ってむらなく膨張して当該内部空間を閉塞することができる。また、熱膨張耐火部材７４００は、セッティングブロックの上面７４０´において、ガラス板１０の見付面（室内側面部１００）から離間して設けてあるので、現場でのガラス板１０の嵌め込み作業時において、熱膨張耐火部材７４００を避けるようにガラス板１０を設置すればよく（熱膨張耐火部材７４００を位置決めに用いることができる）、作業性が良い。 In this embodiment, a thermally expandable fire-resistant member 7400 is provided on the upper surface 740' of a setting block 74 provided on a thermally expandable fire-resistant member 730 extending in the longitudinal direction of the bottom frame 7. As a result, in a plan view, as shown in FIG. 8, a thermally expandable fire-resistant member (730+7400) is provided in the internal space of the bottom frame 7, which extends continuously in the width direction of the bottom frame 7. In the event of a fire, the thermally expandable fire-resistant member (730+7400) can expand evenly across the entire width of the internal space of the bottom frame 7, thereby blocking said internal space. In addition, the thermal expansion fire-resistant member 7400 is provided on the upper surface 740' of the setting block, away from the visible surface of the glass plate 10 (the interior side surface portion 100), so that when fitting the glass plate 10 on-site, the glass plate 10 can be set so as to avoid the thermal expansion fire-resistant member 7400 (the thermal expansion fire-resistant member 7400 can be used for positioning), which improves workability.

図７（Ａ）、（Ｂ）、（Ｃ）では、セッティングブロック７４の上面７４０´は、下框７の室内側見付面７０の折曲片７００の下方に離間して対向する部分を備えており、熱膨張耐火部材７４００の少なくとも一部は、上面７４０´の折曲片７００の下方に離間して対向する部分に位置している。 In Figures 7(A), (B), and (C), the upper surface 740' of the setting block 74 has a portion that faces and is spaced below the folded piece 700 of the interior facing surface 70 of the lower frame 7, and at least a portion of the thermally expandable fire-resistant member 7400 is located in the portion that faces and is spaced below the folded piece 700 of the upper surface 740'.

図７（Ａ）、図８（Ａ）に示す態様では、熱膨張耐火部材７４００は、セッティングブロック７４の上面７４０´において、ガラス板１０の室内側面部１００から離間し、かつ、上面７４０´の室内側端縁から離間した部位に設けてある。図７（Ｂ）、（Ｃ）、図８（Ｂ）、（Ｃ）に示す態様では、熱膨張耐火部材７４００は、セッティングブロック７４の上面７４０´において、ガラス板１０の室内側面部１００から離間し、かつ、上面７４０´の室内側端部に設けてある。なお、図８（Ｂ）下図は、図８（Ｃ）の下図として援用することができる。 In the embodiment shown in Figures 7(A) and 8(A), the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74 at a location spaced apart from the interior side surface 100 of the glass plate 10 and at the interior edge of the upper surface 740'. In the embodiment shown in Figures 7(B), (C), 8(B), and (C), the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74 at a location spaced apart from the interior side surface 100 of the glass plate 10 and at the interior edge of the upper surface 740'. The lower diagram of Figure 8(B) can be used as the lower diagram of Figure 8(C).

図７（Ａ）、（Ｂ）に示す態様では、室外側に向かって水平状に延びる折曲片７００の先端側には垂下片７０１が一体形成されており、垂下片７０１の室外側部位に熱膨張耐火部材７０００が下框７の幅方向に亘って設けてある。図７（Ｃ）に示す態様では、折曲片７００の基端側に位置して熱膨張耐火部材７０００が下框７の幅方向に亘って設けてある。窓開口部全閉状態において、火災時の熱で障子１が加熱された場合には、下框７の内部空間において、熱膨張耐火部材７３０、熱膨張耐火部材７４００、熱膨張耐火部材７０００が膨張することで、これらが協働して下框７の内部空間を閉塞するようになっている。図７（Ａ）、（Ｃ）に示す態様では、上側の熱膨張耐火部材７０００の下方に位置して熱膨張耐火部材７４００が設けてあり、これらが協働して下框７の内部空間をより確実に閉塞するようになっている。 In the embodiment shown in Figures 7(A) and (B), a hanging piece 701 is integrally formed at the tip side of the bent piece 700 extending horizontally toward the outside of the room, and a thermally expandable fire-resistant member 7000 is provided across the width of the bottom frame 7 at the outside portion of the hanging piece 701. In the embodiment shown in Figure 7(C), a thermally expandable fire-resistant member 7000 is provided across the width of the bottom frame 7 at the base end side of the bent piece 700. When the window opening is fully closed and the shoji screen 1 is heated by heat during a fire, the thermally expandable fire-resistant member 730, the thermally expandable fire-resistant member 7400, and the thermally expandable fire-resistant member 7000 expand in the internal space of the bottom frame 7, and work together to block the internal space of the bottom frame 7. In the embodiment shown in Figures 7(A) and (C), a thermally expandable fire-resistant member 7400 is provided below the upper thermally expandable fire-resistant member 7000, and these work together to more reliably close the internal space of the lower frame 7.

障子１の下框７における防火性能の向上に係る構成は、窓装置の障子１に限定されるものではなく、防火性能が要求される建築用パネル全般に提供され得るものである。すなわち、本明細書には、ガラスが嵌め込まれた建築用パネルにおいて、前記建築用パネルの下框には、セッティングブロックが設けてあり、前記ガラスの下端は、前記セッティングブロックの上面に支持されており、前記セッティングブロックの上面の見込幅は前記ガラスの板厚よりも大きく、前記セッティングブロックの上面には、前記ガラスの見付面から離間して熱膨張耐火部材が設けてある、建築用パネルが開示されている。 The configuration for improving the fire resistance of the bottom frame 7 of the shoji screen 1 is not limited to the shoji screen 1 of a window device, but can be provided to architectural panels in general that require fire resistance. That is, this specification discloses an architectural panel in which glass is embedded, the bottom frame of the architectural panel is provided with a setting block, the lower end of the glass is supported on the upper surface of the setting block, the projected width of the upper surface of the setting block is greater than the thickness of the glass, and a thermally expandable fire-resistant member is provided on the upper surface of the setting block, spaced apart from the visible surface of the glass.

１障子（建築用パネル）
１０ガラス板（ガラス）
１０３ガラス板の下端面
２上枠
３下枠
４、５縦枠
６障子の上框
７障子の下框
７０室内側見付面（第１見付面）
７１室外側見付面（第２見付面）
７００折曲片（第１上片）
７１０ポケット部（第２上片）
７２下面
７３中間下面
７３０熱膨張耐火部材（下側熱膨張耐火部材）
７０００熱膨張耐火部材（上側熱膨張耐火部材）
８、９障子の縦框
６４補強部材（中間補強材、上端補強材）
７４セッティングブロック
７４０セッティングブロックの上面
７４０´ セッティングブロックの上面（ガラス板下端面が載っていない部分）、はみ出し部位、第１部分
７４００熱膨張耐火部材
７５補強部材（下端補強材）
Ａ召し合わせ部 1 Shoji (construction panel)
10 Glass plate (glass)
103 Lower end surface of glass plate 2 Upper frame 3 Lower frame 4, 5 Vertical frame 6 Upper frame of shoji 7 Lower frame of shoji 70 Interior facing surface (first facing surface)
71 Exterior facing surface (second facing surface)
700 Bent piece (first upper piece)
710 Pocket portion (second upper piece)
72 Lower surface 73 Intermediate lower surface 730 Thermal expansion fireproof member (lower thermal expansion fireproof member)
7000 Thermal expansion fire-resistant member (upper thermal expansion fire-resistant member)
8, 9 Shoji vertical frame 64 Reinforcement member (middle reinforcement member, upper end reinforcement member)
74 Setting block 740 Upper surface 740' of setting block (part on which the lower end surface of the glass plate is not placed), protruding portion, first portion 7400 Thermal expansion fireproof member 75 Reinforcing member (lower end reinforcing member)
A. Matching section

Claims

In architectural panels with glass inlay,
A plurality of setting blocks are provided at intervals in the width direction on the bottom frame of the building panel,
The lower end of the glass is supported on the upper surface of the setting block,
The projection width of the upper surface of the setting block is greater than the thickness of the glass sheet, and the setting block has a protruding portion on which the lower end of the glass does not rest,
The protruding portion of the setting block is provided with a short thermally expandable fireproof member extending within the protruding portion and spaced apart from the front surface of the glass.
Architectural panels.

The bottom frame includes a first facing surface, a second facing surface, a bottom surface, a first upper piece, and a second upper piece, and receives a lower end portion of the glass between the first upper piece and the second upper piece.
The protruding portion of the upper surface of the setting block faces the lower side of the first upper piece at a distance, and a space is formed between the first upper piece, the protruding portion , and a lower end portion of the glass.
The thermally expandable fire -resistant member faces the space, and expands due to heat during a fire to close the space .
2. The building panel of claim 1 .

An upper thermal expansion fire-resistant member is provided at a corner between an upper end of the first visible surface, which is a portion of the lower frame facing the space, and the first upper side, located above the thermal expansion fire-resistant member.
3. The building panel of claim 2 .

A lower surface for supporting the setting block extends in the width direction inside the lower frame,
A lower thermal expansion refractory member is provided in the pocket portion formed on the lower surface across the width direction,
The setting block is located on the lower thermal expansion refractory member , and a portion of the lower thermal expansion refractory member in the longitudinal direction is covered by the setting block over the entire projected width,
The lower thermal expansion fireproof member and the thermal expansion fireproof member extend continuously in a plan view in the width direction of the lower frame inside the lower frame,
The building panel according to any one of claims 1 to 3 .