JP6175246B2

JP6175246B2 - Double window

Info

Publication number: JP6175246B2
Application number: JP2013026369A
Authority: JP
Inventors: 豊大浦; 哲史佐脇; 野村　吉和; 吉和野村; 幸孝平下; 森　勝彦; 勝彦森; 加藤　信介; 信介加藤; 恭助樋山; 大輔河原; 時桓李
Original assignee: University of Tokyo NUC; Sankyo Tateyama Inc
Current assignee: University of Tokyo NUC; Sankyo Tateyama Inc
Priority date: 2012-02-29
Filing date: 2013-02-14
Publication date: 2017-08-02
Anticipated expiration: 2033-02-14
Also published as: TW201348571A; TWI591249B; JP2013209876A

Description

本発明は、二重窓に関する。 The present invention also relates to the double-glazed windows.

窓の断熱性を高めるために、外窓の室内側に内窓を設けた二重窓が採用されることがある。二重窓にすると断熱性能は単体の窓よりもかなり向上するが、それでも窓枠やガラスを伝わって室内の熱が逃げる。
また近年の高気密・高断熱住宅では、シックハウス対策のために２４時間換気を行うことが義務付けられているが、２４時間換気では冬期に室外の冷たい空気が直接室内に入ってくるため、暖房効率が悪くなる不都合がある。 In order to improve the heat insulation of the window, a double window having an inner window on the indoor side of the outer window may be employed. If double windows are used, the heat insulation performance is significantly improved compared to a single window, but heat from the room is still dissipated through the window frame and glass.
Also, in recent highly airtight and highly insulated houses, it is obliged to perform 24-hour ventilation as a countermeasure against sick houses. However, in 24-hour ventilation, outdoor cold air directly enters the room in the winter, so heating efficiency There is an inconvenience that gets worse.

本発明は以上に述べた実情に鑑み、換気を行いつつ断熱性能を向上させられる二重窓の提供を目的とする。 In view of the circumstances described above, an object of the present invention is to provide a double window capable of improving heat insulation performance while performing ventilation.

上記の課題を達成するために請求項１記載の発明による二重窓は、室内を室外に対して正圧及び／又は負圧に調整できる部屋の屋外に面した開口部に設置されるものであって、外窓と内窓と整流体とを備え、外窓と内窓は通気部を有し、通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあり、整流体は、外窓と内窓の間の中間層に設けてあり、中間層内の空気の流れを外窓と内窓に沿うように迂回させるものであり、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れるようにしたことを特徴とする。本発明は、外窓と内窓を同時に新設する場合の他、既存の単体のサッシ（外窓）が取付けられた窓に、後から内窓を増設して二重窓とする場合も含まれる。 In order to achieve the above object, the double window according to the first aspect of the present invention is installed in an opening facing the outside of a room that can be adjusted to a positive pressure and / or a negative pressure with respect to the outside of the room. there comprises an outer window and the inner window and the rectifying member, the outer window and Uchimado has a vent, is provided with a resistive portion to provide a resistance to the flow of air in any of the vent portion, the rectifying body , Provided in the intermediate layer between the outer window and the inner window, to divert the air flow in the intermediate layer along the outer window and the inner window, and to ventilate the outer window, the intermediate layer and the inner window It is characterized in that air flows inside and outside the room through the ventilation part. The present invention includes not only the case where an outer window and an inner window are newly installed at the same time, but also a case where an inner window is later added to a window to which an existing single sash (outer window) is attached to form a double window. .

請求項２記載の発明による二重窓は、室内を室外に対して正圧及び／又は負圧に調整できる部屋の屋外に面した開口部に設置されるものであって、外窓と内窓と整流体とを備え、外窓と内窓は通気部を有し、通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあり、抵抗部は、抵抗の強さを調節可能であり、整流体は、外窓と内窓の間の中間層に設けてあり、中間層内の空気の流れを外窓と内窓に沿うように迂回させるものであり、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れるようにしたことを特徴とする。本発明は、外窓と内窓を同時に新設する場合の他、既存の単体のサッシ（外窓）が取付けられた窓に、後から内窓を増設して二重窓とする場合も含まれる。 The double window according to the second aspect of the present invention is installed in an opening facing the outside of a room that can be adjusted to a positive pressure and / or a negative pressure with respect to the outside of the room. And the rectifier, the outer window and the inner window have ventilation parts, and there is a resistance part that gives resistance to the flow of air in either of the ventilation parts, the resistance part can adjust the strength of resistance The rectifier is provided in an intermediate layer between the outer window and the inner window, and bypasses the air flow in the intermediate layer along the outer window and the inner window. In addition, the air is allowed to flow inside and outside the room through the ventilation layer of the intermediate layer and the inner window. The present invention includes not only the case where an outer window and an inner window are newly installed at the same time, but also a case where an inner window is later added to a window to which an existing single sash (outer window) is attached to form a double window. .

請求項３記載の発明による二重窓は、請求項１又は２記載の発明の構成に加え、外窓と内窓の一方が単板ガラスで他方が複層ガラスであることを特徴とする。本発明は、外窓と内窓を同時に新設する場合の他、既存の単体のサッシ（外窓）が取付けられた窓に、後から内窓を増設して二重窓とする場合も含まれる。 The double window according to the invention described in claim 3 is characterized in that , in addition to the configuration of the invention described in claim 1 or 2, one of the outer window and the inner window is a single plate glass and the other is a multi-layer glass . The present invention includes not only the case where an outer window and an inner window are newly installed at the same time, but also a case where an inner window is later added to a window to which an existing single sash (outer window) is attached to form a double window. .

請求項１記載の発明による二重窓は、室内を室外に対して正圧及び／又は負圧に調整すると、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れることで換気が行え、冬期においては室内から室外に伝わる熱を中間層の空気の流れによって回収し室内に戻すことで、夏期においては室外から室内に伝わる熱を中間層の空気の流れによって回収し室外に放出することで、空気の流入する方向とは逆方向の熱移動が妨げられ、断熱性能が向上する。通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあることで、空気が逆流するのを防止できる。中間層に設けた整流体により中間層内の空気の流れを外窓と内窓に沿うように迂回させることで、中間層の空気の流れによって効率良く熱を回収できる。 In the double window according to the first aspect of the present invention, when the room is adjusted to a positive pressure and / or a negative pressure with respect to the outdoor , air flows through the outdoor through the vent of the outer window, the intermediate layer, and the vent of the inner window. In the winter, the heat transmitted from the room to the outside is collected by the air flow in the middle layer and returned to the room. In summer, the heat transferred from the outside to the room is collected by the air flow in the middle layer. By discharging to the outside, heat transfer in the direction opposite to the direction in which air flows is prevented, and the heat insulation performance is improved. By providing the resistance part which gives resistance to the flow of air in any of the ventilation parts, it is possible to prevent the air from flowing backward. By diverting the air flow in the intermediate layer along the outer window and the inner window by the rectifier provided in the intermediate layer, heat can be efficiently recovered by the air flow in the intermediate layer.

請求項２記載の発明による二重窓は、室内を室外に対して正圧及び／又は負圧に調整すると、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れることで換気が行え、冬期においては室内から室外に伝わる熱を中間層の空気の流れによって回収し室内に戻すことで、夏期においては室外から室内に伝わる熱を中間層の空気の流れによって回収し室外に放出することで、空気の流入する方向とは逆方向の熱移動が妨げられ、断熱性能が向上する。通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあることで、空気が逆流するのを防止できる。中間層に設けた整流体により中間層内の空気の流れを外窓と内窓に沿うように迂回させることで、中間層の空気の流れによって効率良く熱を回収できる。抵抗部は、抵抗の強さを調節可能なため、通気量を調整することができ、例えば広い部屋には抵抗の小さいものを用い、狭い部屋には抵抗の大きいものを用いることで、各部屋に部屋の広さに応じた適正な換気量を確保することができる。 In the double window according to the second aspect of the present invention, when the room is adjusted to a positive pressure and / or a negative pressure with respect to the outside of the room, air flows inside and outside the room through the ventilation part of the outer window, the intermediate layer and the ventilation part of the inner window. In the winter, the heat transmitted from the room to the outside is collected by the air flow in the middle layer and returned to the room. In summer, the heat transferred from the outside to the room is collected by the air flow in the middle layer. By discharging to the outside, heat transfer in the direction opposite to the direction in which air flows is prevented, and the heat insulation performance is improved. By providing the resistance part which gives resistance to the flow of air in any of the ventilation parts, it is possible to prevent the air from flowing backward. By diverting the air flow in the intermediate layer along the outer window and the inner window by the rectifier provided in the intermediate layer, heat can be efficiently recovered by the air flow in the intermediate layer. Since the resistance part can adjust the strength of resistance, the amount of ventilation can be adjusted. For example, a room with a small resistance is used for a large room and a room with a large resistance is used for a narrow room. In addition, it is possible to secure an appropriate ventilation amount according to the size of the room.

請求項３記載の発明による二重窓は、室内を室外に対して正圧及び／又は負圧に調整すると、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れることで換気が行え、冬期においては室内から室外に伝わる熱を中間層の空気の流れによって回収し室内に戻すことで、夏期においては室外から室内に伝わる熱を中間層の空気の流れによって回収し室外に放出することで、空気の流入する方向とは逆方向の熱移動が妨げられ、断熱性能が向上する。通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあることで、空気が逆流するのを防止できる。中間層に設けた整流体により中間層内の空気の流れを外窓と内窓に沿うように迂回させることで、中間層の空気の流れによって効率良く熱を回収できる。さらに本発明の二重窓は、外窓と内窓の一方が単板ガラスで他方が複層ガラスであることで、特に冬期に効果を発揮するもの、又は、特に夏期に効果を発揮するものとなる。すなわち、外窓を単板ガラス、内窓を複層ガラスとすると、室内の熱が中間層に伝わりにくくなるため、特に冬期に効果を発揮するものとなり、外窓を複層ガラス、内窓を単板ガラスとすると、室外の熱が中間層に伝わりにくくなるため、特に夏期に効果を発揮する。 In the double window according to the third aspect of the present invention , when the room is adjusted to a positive pressure and / or a negative pressure with respect to the outside, air flows through the outside and the inside through the ventilation part of the outer window, the intermediate layer, and the ventilation part of the inner window. In the winter, the heat transmitted from the room to the outside is collected by the air flow in the middle layer and returned to the room. In summer, the heat transferred from the outside to the room is collected by the air flow in the middle layer. By discharging to the outside, heat transfer in the direction opposite to the direction in which air flows is prevented, and the heat insulation performance is improved. By providing the resistance part which gives resistance to the flow of air in any of the ventilation parts, it is possible to prevent the air from flowing backward. By diverting the air flow in the intermediate layer along the outer window and the inner window by the rectifier provided in the intermediate layer, heat can be efficiently recovered by the air flow in the intermediate layer. Furthermore, the double window of the present invention has one of an outer window and an inner window of a single plate glass and the other is a double glazing, and is particularly effective in winter, or particularly effective in summer. Become. In other words, if the outer window is made of single glass and the inner window is made of double-glazed glass, the heat inside the room becomes difficult to be transmitted to the intermediate layer, and this is particularly effective in winter. When it is made of plate glass, it is difficult to transfer outdoor heat to the intermediate layer, so it is particularly effective in summer.

本発明の二重窓の第１実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 1st Embodiment of the double window of this invention. 第１実施形態の二重窓の上部を拡大して示す縦断面図である。It is a longitudinal cross-sectional view which expands and shows the upper part of the double window of 1st Embodiment. 第１実施形態の二重窓の横断面図である。It is a cross-sectional view of the double window of the first embodiment. 第１実施形態の二重窓の室外側正面図である。It is the outdoor side front view of the double window of 1st Embodiment. 第１実施形態の二重窓の室内側正面図である。It is an indoor side front view of the double window of 1st Embodiment. 第１実施形態の二重窓が組み込まれた建物の縦断面図である。It is a longitudinal cross-sectional view of the building in which the double window of 1st Embodiment was integrated. 本発明の二重窓の第２実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 2nd Embodiment of the double window of this invention. 本発明の二重窓の第３実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 3rd Embodiment of the double window of this invention. 本発明の二重窓の第４実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 4th Embodiment of the double window of this invention. 本発明の二重窓についての熱貫流率の解析結果を示す表である。It is a table | surface which shows the analysis result of the heat transmissivity about the double window of this invention. 図１０に示す解析結果をグラフ化したものである。11 is a graph of the analysis result shown in FIG. 本発明の二重窓の第５実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 5th Embodiment of the double window of this invention. 本発明の二重窓の第６実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 6th Embodiment of the double window of this invention. 本発明の二重窓の第７実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 7th Embodiment of the double window of this invention. 本発明の二重窓の第８実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 8th Embodiment of the double window of this invention. 第８実施形態の二重窓の横断面図である。It is a cross-sectional view of the double window of the eighth embodiment.

以下、本発明の実施の形態を図面に基づいて説明する。図１〜５は、本発明の二重窓の第１実施形態を示している。この二重窓は、図１に示すように、建物の窓開口部１０の室外側に外窓１が設置してあり、窓開口部１０の室内側に内窓２が設置してあり、外窓１と内窓２の間の中間層３にハニカムブラインド７が上方から吊り下げて設置してある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show a first embodiment of the double window of the present invention. As shown in FIG. 1, this double window has an outer window 1 installed outside the window opening 10 of the building, an inner window 2 installed inside the window opening 10, and the outside. A honeycomb blind 7 is suspended from the upper side in an intermediate layer 3 between the window 1 and the inner window 2.

外窓１は、窓開口部１０に固定される枠１１と、枠１１内に引違い状に開閉自在に収めた外障子１２ａ及び内障子１２ｂとを備えている。枠１１は、上枠１３と下枠１４と左右の竪枠１５，１５とを枠組みして構成されている。外障子１２ａ及び内障子１２ｂは、上框１６と下框１７と戸先框１８と召合せ框１９とを框組みし、その内側にガラス２０を嵌め込んで構成されている。枠１１と障子１２ａ，１２ｂの框１６，１７，１８，１９は、アルミ製である。
上框１６は、図２，４に示すように、室外側と室内側の見付面に多数の通気孔２１ａ，２１ｂを設け、室内外に連通する通気部４が構成されている。上框１６の内部には、上框１６の長手方向にスライド自在に設けられ、室外側の通気孔２１ａを開閉自在な蓋体２２が設けてある。上框１６の室内側の見付面には、室内側の通気孔２１ｂをカバーするようにフィルター２３が着脱自在に設けてある。 The outer window 1 includes a frame 11 that is fixed to the window opening 10, and an outer panel 12 a and an inner panel 12 b that are housed in the frame 11 so as to be freely opened and closed. The frame 11 is configured by an upper frame 13, a lower frame 14, and left and right collar frames 15, 15. The outer shoji 12a and the inner shoji 12b are constructed by assembling an upper rod 16, a lower rod 17, a door rod 18 and a summon rod 19, and inserting a glass 20 inside thereof. The frame 11 and the saddles 16, 17, 18, and 19 of the shojis 12a and 12b are made of aluminum.
As shown in FIGS. 2 and 4, the upper collar 16 is provided with a large number of ventilation holes 21 a and 21 b on the outdoor and indoor finding surfaces, and the ventilation portion 4 is configured to communicate with the interior and the exterior. A lid 22 is provided inside the upper collar 16 so as to be slidable in the longitudinal direction of the upper collar 16 and can open and close the vent hole 21a on the outdoor side. A filter 23 is detachably provided on the indoor-side finding surface of the upper collar 16 so as to cover the indoor-side vent hole 21b.

内窓２は、窓開口部１０に固定される枠２４と、枠２４内に引違い状に開閉自在に収めた外障子２５ａ及び内障子２５ｂとを備えている。枠２４は、上枠２６と下枠２７と左右の竪枠４８，４８とを枠組みして構成されている。外障子２５ａ及び内障子２５ｂは、上框２８と下框２９と戸先框３０と召合せ框３１とを框組みし、その内側にガラス（複層ガラス）４５を嵌め込んで構成されている。枠２４と障子２５ａ，２５ｂの框２８，２９，３０，３１は、樹脂製である。
上枠２６は、図２，５に示すように、室外側と室内側の見付面に多数の通気孔３２ａ，３２ｂを設け、室内外に連通する通気部５が構成されている。上枠２６の内部には、通気部５を流れる空気に抵抗を与えるポーラス材６が埋め込んである。ポーラス材６としては、グラスウールやウレタンフォーム等を用いている。上枠２６の室外側と室内側の見付面には、通気孔３２ａ，３２ｂをカバーするようにフィルター３３，３３が着脱自在に設けてある。 The inner window 2 includes a frame 24 that is fixed to the window opening 10, and an outer obstacle 25 a and an inner obstacle 25 b that are housed in the frame 24 so as to be freely opened and closed. The frame 24 is configured by a framework of an upper frame 26, a lower frame 27, and left and right collar frames 48, 48. The outer shoji 25a and the inner shoji 25b are constructed by assembling an upper eave 28, a lower eaves 29, a door-end eaves 30 and a summon eaves 31 and fitting glass (multi-layer glass) 45 therein. . The frame 24 and the collars 28, 29, 30, and 31 of the shojis 25a and 25b are made of resin.
As shown in FIGS. 2 and 5, the upper frame 26 is provided with a large number of ventilation holes 32 a and 32 b on the outdoor and indoor finding surfaces, and the ventilation portion 5 is formed which communicates with the interior and the exterior. A porous material 6 is embedded in the upper frame 26 to give resistance to the air flowing through the ventilation portion 5. As the porous material 6, glass wool, urethane foam or the like is used. Filters 33, 33 are detachably provided on the outdoor side and indoor side of the upper frame 26 so as to cover the vent holes 32 a, 32 b.

ハニカムブラインド７は、図１に示すように、ポリエステルの不織布を用いてダブル・ハニカム（蜂の巣）構造のスクリーン状に構成され、このスクリーンが二重の空気層を作り、高い断熱効果を発揮する。またハニカムブライド７の両側の側部は、図３に示すように、額縁に沿って取付けた樹脂製のレール３４に案内してあり、気密性を高めている。したがって、中間層３内はハニカムブラインド７により室外側と室内側に仕切られ、ハニカムブラインド７の室外側の空気は室外の気温に近付き、ハニカムブライド７の室内側の空気は室内側の気温に近付き、ハニカムブラインド７の室外側と室内側で温度差が生じる。図１に示すように、ハニカムブライド７の下端と窓枠の下面との間には、数センチ程度の隙間３５を設けている。ハニカムブラインド７は、操作部３６を操作することで上下に伸縮自在となっている。操作部３６は、内窓２の上枠２６の端部に室内外方向に貫通して設けた挿通部４９に挿通して室内側に出してあり、内窓２の障子２５ａ，２５ｂを開けなくても室内側からハニカムブラインド７の操作が行えようにしている。 As shown in FIG. 1, the honeycomb blind 7 is formed into a double honeycomb (honeycomb) structure screen using a polyester non-woven fabric. This screen forms a double air layer and exhibits a high heat insulating effect. Further, as shown in FIG. 3, the side portions on both sides of the honeycomb bride 7 are guided by resin rails 34 attached along the frame to enhance the airtightness. Therefore, the inside of the intermediate layer 3 is divided into the outdoor side and the indoor side by the honeycomb blind 7, the air on the outdoor side of the honeycomb blind 7 approaches the outdoor temperature, and the air on the indoor side of the honeycomb bride 7 approaches the indoor temperature. A temperature difference occurs between the outdoor side and the indoor side of the honeycomb blind 7. As shown in FIG. 1, a gap 35 of about several centimeters is provided between the lower end of the honeycomb bride 7 and the lower surface of the window frame. The honeycomb blind 7 can be vertically expanded and contracted by operating the operation unit 36. The operation portion 36 is inserted into an insertion portion 49 provided through the end portion of the upper frame 26 of the inner window 2 in the indoor and outdoor direction, and exits indoors, so that the shojis 25a and 25b of the inner window 2 cannot be opened. However, the honeycomb blind 7 can be operated from the indoor side.

本二重窓の施工手順を説明すると、まず窓開口部１０の室外側に外窓１を設置する。次に、外窓１の室内側の窓開口部１０にハニカムブラインド７を設置する。その後、外窓の１の室内側に一定の間隔をあけて、窓開口部１０の室内側に内窓２を設置する。なお、ハニカムブラインド７は、内窓２を設置した後に設置することもできる。 The construction procedure of the double window will be described. First, the outer window 1 is installed on the outdoor side of the window opening 10. Next, the honeycomb blind 7 is installed in the window opening 10 on the indoor side of the outer window 1. Thereafter, the inner window 2 is installed on the indoor side of the window opening 10 with a certain interval on the indoor side of the outer window 1. The honeycomb blind 7 can be installed after the inner window 2 is installed.

図６は、この二重窓が組み込まれた建物を示しており、床３８と壁３９と天井４０とで室内が仕切られ、床３８と壁３９と天井４０には断熱材を埋め込んで断熱性を高めてある。一方の壁３９には窓開口部１０を設けて二重窓を取付けてあり、他方の壁３９には換気用の開口部４１を設けて送風機４２が取付けてある。冬期においては、送風機４２を運転して室内の空気を屋外に吸い出すことで室内を負圧に調整し、それに伴い室外の空気を外窓１の通気部４と中間層３と内窓２の通気部５を通じて室内に取り込み、２４時間換気を行っている。
また、建物には公知の冷暖房設備を備え、冷暖房設備により室内の気温を２０℃前後の快適な温度に保っている。図６は、冷暖房設備としてヒートポンプ４３を採用した場合を示している。ヒートポンプ４３は、室内側ユニット４３ａと室外側ユニット４３ｂとを備え、内蔵する熱交換器と冷媒回路により室内外の空気間で熱交換を行い、室内側ユニット４３ａの送風口４３ｃより冬季には温風を、夏季には冷風を室内に噴き出す。なおヒートポンプ４３は、冬季には送風機４２から排出される室内の空気をダクト４４を通して室外側ユニット４３ｂに送り、その空気から熱を回収することで、暖房コストを節約できるようにしている。 FIG. 6 shows a building in which this double window is incorporated. The room is partitioned by a floor 38, a wall 39, and a ceiling 40, and a heat insulating material is embedded in the floor 38, the wall 39, and the ceiling 40 to provide heat insulation. Is raised. One wall 39 is provided with a window opening 10 and a double window is attached, and the other wall 39 is provided with a ventilation opening 41 and a blower 42 is attached. In the winter, the blower 42 is operated to suck out indoor air to the outside to adjust the room to a negative pressure, and accordingly, the outdoor air is passed through the ventilation part 4 of the outer window 1, the intermediate layer 3, and the inner window 2. It is taken into the room through part 5 and is ventilated for 24 hours.
Moreover, the building is equipped with a known air conditioning system, and the indoor air temperature is maintained at a comfortable temperature of about 20 ° C. by the air conditioning system. FIG. 6 shows a case where a heat pump 43 is employed as the air conditioning equipment. The heat pump 43 includes an indoor unit 43a and an outdoor unit 43b. The heat pump 43 exchanges heat between indoor and outdoor air using a built-in heat exchanger and a refrigerant circuit, and is heated in the winter from the air outlet 43c of the indoor unit 43a. The wind blows out into the room during the summer. In the winter, the heat pump 43 sends indoor air discharged from the blower 42 through the duct 44 to the outdoor unit 43b, and recovers heat from the air so that heating costs can be saved.

本二重窓は、樹脂製の枠２４及び框２８，２９，３０，３１と複層ガラス４５を用いた内窓２を設けたことと、外窓１と内窓２の間の中間層３にハニカムブラインド７を設けたことによる断熱効果に加え、外窓１の通気部４と中間層３と内窓２の通気部５を通じて室内外を空気が流れることで、空気の流入する方向とは逆方向の熱移動が妨げられ、より一層の断熱効果を発揮する。
冬期の場合について説明すると、図１に示すように、外窓１の障子１２ａ，１２ｂの上框１６に設けた通気部４より流入した冷たい室外の空気は、ハニカムブラインド７と外窓１の障子１２ａ，１２ｂの間を通っていったん下降し、その後、ハニカムブラインド７と内窓２の障子２５ａ，２５ｂの間を通って上昇する。この間に、内窓２の障子２５ａ，２５ｂより室内の熱が伝わり、空気が暖められる。その後、空気は内窓２の上枠２６の通気部５内に流入し、その内部に設けたポーラス材６により空気の流れの勢いが弱められ、室内の熱で暖められたポーラス材６や上枠２６の熱が空気に伝わり、室内の気温と略同じ温度に暖められて室内側の通気孔３２ｂより室内に流入する。このように、中間層３内を外窓１と内窓２に沿うように迂回して空気が流れること、内窓２の通気部５内で空気の流れに抵抗を与えることで、室内から室外に伝わる熱を空気の流れによって回収し、室内に戻すことで、室内から室外への熱の損失がほとんどなくなるので、非常に高い断熱性が得られる。また、外気を暖めて室内に採り込めるので、室内に居る人が冷たい風を感じることがなく、暖房効率も良い。なお、図中の矢印は空気の流れを示している。 This double window is provided with the resin frame 24 and the inner window 2 using the eaves 28, 29, 30, 31 and the multilayer glass 45, and the intermediate layer 3 between the outer window 1 and the inner window 2. In addition to the heat insulation effect by providing the honeycomb blind 7 in the air, the air flows in and out of the room through the ventilation part 4 of the outer window 1, the intermediate layer 3, and the ventilation part 5 of the inner window 2. Heat transfer in the opposite direction is hindered, and a further heat insulating effect is exhibited.
In the case of the winter season, as shown in FIG. 1, as shown in FIG. 1, the cold outdoor air that flows in from the ventilation portion 4 provided in the upper flange 16 of the shoji 12 a and 12 b of the outer window 1 It descends once between 12a and 12b, and then rises between the honeycomb blind 7 and the shojis 25a and 25b of the inner window 2. During this time, indoor heat is transmitted from the shojis 25a and 25b of the inner window 2 to warm the air. Thereafter, the air flows into the ventilation portion 5 of the upper frame 26 of the inner window 2, and the momentum of the air flow is weakened by the porous material 6 provided therein, and the porous material 6 heated by the indoor heat The heat of the frame 26 is transferred to the air, warmed to substantially the same temperature as the room air temperature, and flows into the room through the air vent 32b on the room side. In this way, the air flows around the intermediate layer 3 along the outer window 1 and the inner window 2, and resistance is given to the flow of air in the ventilation part 5 of the inner window 2, so that the air flows from the indoor to the outdoor. By recovering the heat transmitted to the air by the flow of air and returning it to the room, there is almost no loss of heat from the room to the room, so that a very high heat insulating property can be obtained. Further, since the outside air is warmed and taken into the room, the person in the room does not feel cold wind and the heating efficiency is good. In addition, the arrow in a figure has shown the flow of air.

また、内窓２の通気部５内にポーラス材６が設けてあることで、窓の上部と下部での温度差や室外の風の影響等により、空気が室内側から室外側に逆流するのを防止できる。内窓２の通気部５を、内窓２の上部（上枠２６）に設けたことで、中間層３内で内窓２に沿って上昇した空気を室内に効率よく採り込むことができ、室内に流入する空気の温度を高くできる。ハニカムブラインド７は、中間まで上げた状態や一番上まで上げた状態であっても、外窓１の通気部４から流入した空気はハニカムブラインド７に当たって外窓１に沿うように下向きに迂回するため、断熱性能を向上する効果がある。 Further, since the porous material 6 is provided in the ventilation portion 5 of the inner window 2, the air flows backward from the indoor side to the outdoor side due to the temperature difference between the upper and lower portions of the window or the influence of the outdoor wind. Can be prevented. By providing the ventilation part 5 of the inner window 2 on the upper part (upper frame 26) of the inner window 2, the air rising along the inner window 2 in the intermediate layer 3 can be taken into the room efficiently, The temperature of the air flowing into the room can be increased. Even when the honeycomb blind 7 is raised to the middle or raised to the top, the air flowing in from the ventilation portion 4 of the outer window 1 hits the honeycomb blind 7 and detours downward along the outer window 1. Therefore, there is an effect of improving the heat insulation performance.

内窓２の通気部５内に設けるポーラス材６等の抵抗部は、空気の流れに与える抵抗の強さが異なるものを何種類か準備しておき、その中から選択して用いることで、通気量を調節することができる。例えば、一つの建物に本発明の二重窓が設置された部屋が複数あり、トイレ等に設置された一つの換気扇により各部屋の換気を行う場合に、広い部屋には抵抗の小さいものを用い、狭い部屋には抵抗の大きいものを用いることで、各部屋に部屋の広さに応じた適正な換気量を確保することができる。 By preparing several types of resistance parts such as the porous material 6 provided in the ventilation part 5 of the inner window 2 with different strengths of resistance to the air flow, by selecting and using them, The air flow can be adjusted. For example, when there are multiple rooms with double windows of the present invention installed in one building and each room is ventilated with one ventilation fan installed in a toilet, etc., use a room with low resistance for a large room. By using a small room with high resistance, it is possible to secure an appropriate ventilation amount in each room according to the size of the room.

図７は、本発明の二重窓の第２実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３に、通常のブラインド８を設けている。ブラインド８自体の断熱性や気密性は、ハニカムブラインド７と比べると劣るが、ブラインド８によって空気の流れを外窓１と内窓２に沿うように迂回させる作用はあるので、第１実施形態のものと同様に、室内から室外に伝わる熱を空気の流れによって回収して室内に戻すことで、断熱性能を向上することができる。なおブラインド８は、フィン４６を縦にしてブラインド８を閉じた方が断熱効果は高まる。ハニカムブラインド７の場合と同様に、ブラインド８を中間まで上げた状態や一番上まで上げた状態であっても、外窓１の通気部４から流入した空気はブラインド８に当たって外窓１に沿うように下向きに迂回するため、断熱性能を向上する効果がある。 FIG. 7 shows a second embodiment of the double window of the present invention. In this embodiment, a normal blind 8 is provided in the intermediate layer 3 between the outer window 1 and the inner window 2. Although the heat insulation and airtightness of the blind 8 itself are inferior to those of the honeycomb blind 7, the blind 8 has an action of diverting the air flow along the outer window 1 and the inner window 2, so that the first embodiment As in the case of the heat insulation performance, heat transmitted from the room to the outside is recovered by the flow of air and returned to the room. In addition, the heat insulation effect of the blind 8 is enhanced by closing the blind 8 with the fins 46 in the vertical direction. As in the case of the honeycomb blind 7, even when the blind 8 is raised to the middle or up to the top, the air flowing from the ventilation part 4 of the outer window 1 hits the blind 8 and follows the outer window 1. As a result, the heat insulation performance is improved.

図８は、本発明の二重窓の第３実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３の上部に、整流ガイド９を設けている。整流ガイド９は、室外側に向けて湾曲して垂下する入口側ガイド片４７ａと、入口側ガイド片４７ａの下端より連続する垂直な部分とその下方に室内側に屈曲した部分を有する逆流防止片４７ｂと、室内側に傾斜した出口側ガイド片４７ｃとを有し、これらの片４７ａ，４７ｂ，４７ｃにより中間層３内の空気の流れを外窓１と内窓２に沿うように迂回させている。入口側ガイド片４７ａは、外窓１の通気部４から流入した空気を外窓１に沿うように下向きに迂回させる働きがあり、逆流防止片４７ｂは内窓２に沿って上昇した空気が室外側に逆流するのを防ぐ働きがあり、出口側ガイド片４７ｃは内窓２に沿って上昇した空気を内窓２の通気部５へと誘導する働きがある。本実施形態によっても、第１・第２実施形態と同様に、室内から室外に伝わる熱を空気の流れによって回収して室内に戻すことで、断熱性能を向上することができる。また本実施形態の二重窓では、室内側から見たときに整流ガイド９が内窓２の上枠２６と上框２８に大部分が隠れるので、ハニカムブラインド７やブラインド８を設けたときのように、視界が邪魔されない利点がある。 FIG. 8 shows a third embodiment of the double window of the present invention. In this embodiment, a rectifying guide 9 is provided above the intermediate layer 3 between the outer window 1 and the inner window 2. The rectifying guide 9 is a backflow preventing piece having an inlet side guide piece 47a that curves and hangs downward toward the outdoor side, a vertical portion that continues from the lower end of the inlet side guide piece 47a, and a portion that is bent downward to the indoor side 47b and an outlet side guide piece 47c inclined to the indoor side, and these pieces 47a, 47b, 47c are used to detour the air flow in the intermediate layer 3 along the outer window 1 and the inner window 2. Yes. The inlet-side guide piece 47a has a function of diverting the air flowing in from the ventilation portion 4 of the outer window 1 downward along the outer window 1, and the backflow prevention piece 47b has the air rising along the inner window 2 in the chamber. The outlet side guide piece 47c has a function of guiding the air rising along the inner window 2 to the ventilation part 5 of the inner window 2. Also in the present embodiment, as in the first and second embodiments, the heat insulation performance can be improved by collecting the heat transmitted from the room to the outside by the flow of air and returning it to the room. Further, in the double window of the present embodiment, most of the rectifying guide 9 is hidden by the upper frame 26 and the upper collar 28 of the inner window 2 when viewed from the indoor side, so that when the honeycomb blind 7 or the blind 8 is provided, As such, there is an advantage that the field of view is not disturbed.

図９は、本発明の二重窓の第４実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３には何も設けていない。このように中間層３内に空気の流れを妨げるものがない場合でも、中間層３内の空気は外窓１寄りは室外の気温によって冷やされ、内窓２寄りは室内の気温によって暖められ、また冷たい空気は下降し、暖かい空気は上昇しようとするため、中間層３内に外窓１と内窓２に沿った自然な空気の流れが生じ、中間層３内を流れる空気に室内の熱が伝わり、且つ内窓２の上枠２６の通気部５内に設けたポーラス材６の作用により空気が室内側から室外側に逆流するのが防がれるため、室内から室外に伝わる熱を空気の流れによって回収して室内に戻し、断熱性能を向上することができる。 FIG. 9 shows a fourth embodiment of the double window of the present invention. In this embodiment, nothing is provided in the intermediate layer 3 between the outer window 1 and the inner window 2. Thus, even when there is nothing in the intermediate layer 3 that obstructs the air flow, the air in the intermediate layer 3 is cooled by the outdoor temperature near the outer window 1, and the inner window 2 is warmed by the indoor temperature, Further, since the cold air descends and the warm air tends to rise, a natural air flow along the outer window 1 and the inner window 2 occurs in the intermediate layer 3, and the air flowing in the intermediate layer 3 is heated to the indoor heat. Since the air is prevented from flowing back from the indoor side to the outdoor side by the action of the porous material 6 provided in the ventilation portion 5 of the upper frame 26 of the inner window 2, the heat transmitted from the indoor to the outdoor is It can collect | recover by a flow and return to a room | chamber interior and can improve heat insulation performance.

第１〜第４実施形態の二重窓について、室外側の気温が０℃、室内側の気温が２０℃で、室外から室内に流入する空気の流量を変化させたときの内外圧力差、屋外側への熱量、フレームの熱貫流率Ｕｆ、ガラスの熱貫流率Ｕｇ、窓全体の熱貫流率Ｕｗを、解析によって求めた。比較のために、通気部のない二重窓の熱貫流率Ｕｗも求めた。解析結果を図１０に示す。また、換気流量と窓全体の熱貫流率Ｕｗとの関係を図１１に示す。なお、ブラインド８を設置する第２実施形態については、ブラインド８のフィン４６を縦にした状態で解析した。 Regarding the double windows of the first to fourth embodiments, the outdoor air temperature is 0 ° C., the indoor air temperature is 20 ° C., and the internal / external pressure difference when the flow rate of air flowing from the outdoor to the indoor is changed, The amount of heat to the outside, the heat flow rate Uf of the frame, the heat flow rate Ug of the glass, and the heat flow rate Uw of the entire window were determined by analysis. For comparison, the heat flow rate Uw of a double window without a ventilation portion was also obtained. The analysis result is shown in FIG. FIG. 11 shows the relationship between the ventilation flow rate and the heat transmissibility Uw of the entire window. In addition, about 2nd Embodiment which installs the blind 8, it analyzed in the state which the fin 46 of the blind 8 was made vertical.

図１０，１１より明らかなように、換気を行わない二重窓では熱貫流率Ｕｗが２．１２であったのに対して、第１〜第４実施形態の二重窓は熱貫流率Ｕｗが０．２４〜１．５８と大幅に小さい値となった。熱貫流率Ｕｗは、流量が大きくなるほど小さくなる。特に、ハニカムブラインド７を設置した第１実施形態は、熱貫流率Ｕｗが０．２４〜０．７３と非常に小さい値となり、ブラインド８を設置した第２実施形態と整流ガイド９を設置した第３実施形態も、１前後の小さい値となった。また、中間層３内に何も設置しない第４実施形態でも、十分断熱性能を向上する効果があることが確認された。 As is clear from FIGS. 10 and 11, the double window without ventilation has a heat transmissibility Uw of 2.12, whereas the double windows of the first to fourth embodiments have a heat transmissivity Uw. Was 0.24 to 1.58, which was a significantly small value. The heat transmissibility Uw decreases as the flow rate increases. Particularly, in the first embodiment in which the honeycomb blind 7 is installed, the heat transmissibility Uw becomes a very small value of 0.24 to 0.73, and the second embodiment in which the blind 8 is installed and the first embodiment in which the rectifying guide 9 is installed. In the third embodiment, a small value of about 1 was obtained. It was also confirmed that the fourth embodiment in which nothing is installed in the intermediate layer 3 has an effect of sufficiently improving the heat insulation performance.

図１２は、本発明の二重窓の第５実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３に、第１実施形態と同様にハニカムブラインド７を設置しており、ハニカムブラインド７は室外側の表面７ａを黒色や褐色等の暗色としている。ハニカムブラインド７の室外側の表面７ａを暗色とするには、例えば暗色の生地を使用してもよいし、暗色のフィルムを貼ったり、暗色の塗装を施したものでもよい。
このように、ハニカムブラインド７の室外側の表面７ａを暗色とすることで日射吸収率が向上し、日射により暖められた空気を室内に取り込める利点がある。 FIG. 12 shows a fifth embodiment of the double window of the present invention. In this embodiment, a honeycomb blind 7 is installed in the intermediate layer 3 between the outer window 1 and the inner window 2 in the same manner as in the first embodiment. The color is dark. In order to darken the outdoor surface 7a of the honeycomb blind 7, for example, a dark cloth may be used, or a dark film may be applied or a dark paint may be applied.
Thus, the solar radiation absorption rate is improved by making the surface 7a on the outdoor side of the honeycomb blind 7 darker, and there is an advantage that the air warmed by the solar radiation can be taken into the room.

図１３は、本発明の二重窓の第６実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３に、透明ロールスクリーン４９を設置している。透明ロールスクリーン４９の巻取り軸５０の室外側には，板状の気流止め５１が取付けてあり、これにより外窓１の通気部４より流入した空気が透明ロールスクリーン４９に沿って下向きに流れるようにしている。
このように、中間層３に透明ロールスクリーン４９を設置した場合には、透明ロールスクリーン４９を下したままにして外窓１と内窓２に沿った空気の流れを確保しながら、窓からの眺望が阻害されない利点がある。 FIG. 13 shows a sixth embodiment of the double window of the present invention. In this embodiment, a transparent roll screen 49 is installed in the intermediate layer 3 between the outer window 1 and the inner window 2. A plate-like airflow stopper 51 is attached to the outside of the winding shaft 50 of the transparent roll screen 49 so that air flowing in from the ventilation portion 4 of the outer window 1 flows downward along the transparent roll screen 49. I am doing so.
Thus, when the transparent roll screen 49 is installed in the intermediate layer 3, the transparent roll screen 49 is kept down and the air flow along the outer window 1 and the inner window 2 is secured, and the There is an advantage that the view is not obstructed.

図１４は、本発明の二重窓の第７実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３に、透明ロールスクリーン４９を設置し、さらにその室内側に並べて透明でない一般ロールスクリーン５２を設置している。
本実施形態によれば、透明ロールスクリーン４９は常に下げた状態としておき、昼間は一般ロールスクリーン５２を上げることで窓から外の景色を見たり日光を取り入れたりでき、夜間は一般ロールスクリーン５２を下げることで外からの視線を遮ることができる。また、透明ロールスクリーン４９と一般ロールスクリーン５２の間に形成される空気層により、断熱性能のさらなる向上が期待できる。 FIG. 14 shows a seventh embodiment of the double window of the present invention. In this embodiment, a transparent roll screen 49 is installed in the intermediate layer 3 between the outer window 1 and the inner window 2, and a non-transparent general roll screen 52 is installed side by side on the indoor side.
According to the present embodiment, the transparent roll screen 49 is always kept in a lowered state, and the general roll screen 52 is raised during the daytime so that the outside scenery can be seen from the window and sunlight can be taken in. By lowering, you can block the line of sight from the outside. Further, the air layer formed between the transparent roll screen 49 and the general roll screen 52 can be expected to further improve the heat insulation performance.

図１５，１６は、本発明の二重窓の第８実施形態を示している。この実施形態では、外窓１と内窓２の間の中間層３に、外障子５３ａと内障子５３ｂとからなる引違い戸５４を設けている。外障子５３ａと内障子５３ｂは、框５５を組んだ枠にガラスや樹脂板よりなる透光性パネル５６を嵌め込んで構成され、上額縁に取付けたレール５７に吊り戸車５８にて支持され、左右にスライドして開閉できるようにしている。
このように、中間層３に透光性パネル５６を用いた障子５３ａ，５３ｂが設置してあると、台風のような強い雨風のときに外窓１の通気部４から雨水が浸入しても、障子５３ａ，５３ｂにより雨水を遮断できる。また、透光性パネル５６を用いているため、窓からの眺望が阻害されない。なお障子５３ａ，５３ｂは、透光性パネル５６の上部と下部のみにアルミフレームを取付けたものや、透光性パネル５６だけの簡易的なものであってもよい。 15 and 16 show an eighth embodiment of the double window of the present invention. In this embodiment, a sliding door 54 made up of a shoji 53a and a shoji 53b is provided in the intermediate layer 3 between the outer window 1 and the inner window 2. The outer shoji 53a and the inner shoji 53b are configured by fitting a translucent panel 56 made of glass or a resin plate into a frame in which a collar 55 is assembled, and are supported by a suspension door wheel 58 on a rail 57 attached to the upper frame, It can be opened and closed by sliding left and right.
Thus, when the shoji 53a, 53b using the translucent panel 56 is installed in the intermediate layer 3, rainwater infiltrates from the ventilation part 4 of the outer window 1 in the case of strong rainy wind such as a typhoon. Rainwater can be blocked by the shoji 53a and 53b. Moreover, since the translucent panel 56 is used, the view from the window is not hindered. The shoji 53a and 53b may be ones in which an aluminum frame is attached only to the upper and lower parts of the translucent panel 56, or a simple one having only the translucent panel 56.

これまで冬季の場合について説明したが、本発明の二重窓は夏季においても冬季と同様に優れた断熱性能を発揮する。夏季の場合は、送風機４２により室内を正圧に調整し、通気部４，５と中間層３を通して空気が室内側から室外側に流れるようにする。室内の空気の温度は室外よりも低いので、通気部４，５と中間層３内を空気が室内側から室外側に流れる間に空気に外窓１やハニカムブラインド７等の熱が伝わり、空気と一緒に熱が室外に放出されるため、空気が流出する方向とは逆方向である室外側から室内側への熱輸送が妨げられ、優れた断熱効果を発揮して、室内が涼しく保たれる。なお、整流ガイド９を設ける第３実施形態については、夏期には整流ガイド９の向きを冬期とは室内外逆にする。 Although the case of winter has been described so far, the double window of the present invention exhibits excellent heat insulation performance in summer as well as in winter. In the summer, the blower 42 adjusts the room to a positive pressure so that air flows from the indoor side to the outdoor side through the vents 4 and 5 and the intermediate layer 3. Since the temperature of the indoor air is lower than the outdoor temperature, the heat of the outer window 1 and the honeycomb blind 7 is transferred to the air while the air flows from the indoor side to the outdoor side through the ventilation portions 4, 5 and the intermediate layer 3. Because the heat is released to the outside of the room, the heat transfer from the outdoor side to the indoor side, which is opposite to the direction of the outflow of air, is hindered, providing an excellent heat insulating effect and keeping the room cool. It is. In addition, about 3rd Embodiment which provides the rectification | straightening guide 9, the direction of the rectification | straightening guide 9 is reversed indoors and outdoors with respect to winter in the summer.

以上に述べたように本発明の二重窓は、中間層３内の空気の流れを外窓１と内窓２に沿うように迂回させること、通気部５内を流れる空気に抵抗を与えることにより、空気が流れる方向と逆方向の熱移動が妨げられ、極めて高い断熱性能が得られる。中間層３内にハニカムブラインド等を設けて中間層３内の空気の流れを迂回させること、通気部５内を流れる空気に抵抗を与えることのいずれか一方のみでも、断熱性能を向上する効果がある。また本発明の二重窓は、換気を行いながら断熱性を高められるので、２４時間換気を行う建物に好適である。 As described above, the double window of the present invention diverts the air flow in the intermediate layer 3 along the outer window 1 and the inner window 2, and provides resistance to the air flowing in the ventilation portion 5. Therefore, heat transfer in the direction opposite to the direction in which air flows is prevented, and extremely high heat insulation performance is obtained. Even if only one of providing a honeycomb blind or the like in the intermediate layer 3 to bypass the air flow in the intermediate layer 3 and providing resistance to the air flowing in the ventilation part 5 has an effect of improving the heat insulation performance. is there. In addition, the double window of the present invention is suitable for buildings that are ventilated for 24 hours because the heat insulation can be enhanced while performing ventilation.

外窓１と内窓２のガラス２０，４５は、単板ガラスでも複層ガラスでもよいが、実施形態のように外窓１のガラス２０を単板ガラス、内窓２のガラス４５を複層ガラスにすると、室内の熱が中間層３に伝わりにくくなるため、特に冬期に効果を発揮する。反対に外窓１のガラス２０を複層ガラス、内窓２のガラス４５を単板ガラスにすると、室外の熱が中間層３に伝わりにくくなるため、特に夏期に効果を発揮する。両方とも複層ガラスにすると、冬期・夏期ともに効果を発揮する。もっとも両方とも単板ガラスにした場合でも、中間層３内の空気の流れにより熱を回収することで、冬期・夏期ともに断熱性能を向上する効果がある。 The glass 20 and 45 of the outer window 1 and the inner window 2 may be single plate glass or multilayer glass, but the glass 20 of the outer window 1 is single plate glass and the glass 45 of the inner window 2 is multilayer glass as in the embodiment. Then, since indoor heat becomes difficult to be transmitted to the intermediate layer 3, it is particularly effective in winter. On the contrary, when the glass 20 of the outer window 1 is made of double-glazed glass and the glass 45 of the inner window 2 is made of single plate glass, the outdoor heat becomes difficult to be transmitted to the intermediate layer 3, so that the effect is exhibited particularly in summer. If both are made of double-glazed glass, it will be effective in both winter and summer. However, even when both are made of single plate glass, heat is recovered by the flow of air in the intermediate layer 3, so that there is an effect of improving the heat insulation performance in both winter and summer.

また、外窓１と内窓２のガラス２０，４５のどちらか一方又は両方を低放射性の表面処理を施したガラス（ｌｏｗ−ｅガラス）にするか、外窓１のガラス２０の室内側の面と内窓２のガラス４５の室外側の面のどちらか一方又は両方に低放射性のフィルム（ｌｏｗ−ｅフィルム）を貼ると、ガラス面からの輻射による熱移動が軽減されるため、断熱性能をより一層高めることができる。中間層３内に何も設置しない場合や、整流ガイド９を設けた場合、ハニカムブラインド７やブラインド８を上げた状態のときには、輻射による影響が大きくなるため、このような対策は効果的である。
また、中間層３に設けるハニカムブラインド７やブラインド８、ロールスクリーン４９，５２等に低放射性のフィルムを貼ることもでき、これによっても断熱性能を高める効果がある。 Further, either one or both of the glass 20 and 45 of the outer window 1 and the inner window 2 are made of low-radiation surface-treated glass (low-e glass), or on the indoor side of the glass 20 of the outer window 1. When a low-radiation film (low-e film) is applied to either or both of the surface and the outdoor surface of the glass 45 of the inner window 2, heat transfer due to radiation from the glass surface is reduced, so that heat insulation performance Can be further increased. When nothing is installed in the intermediate layer 3 or when the rectifying guide 9 is provided, and when the honeycomb blind 7 or the blind 8 is in a raised state, the influence of radiation increases, so such a countermeasure is effective. .
In addition, a low-radiation film can be attached to the honeycomb blind 7 and the blind 8 provided on the intermediate layer 3, the roll screens 49 and 52, etc., and this also has the effect of improving the heat insulation performance.

本発明の二重窓、二重窓の内窓及び二重窓の形成方法は、新築の建物に外窓１と内窓２を同時に設置する場合に限らず、既存の単体のサッシ（外窓１）が取付けられた窓に、後から内窓２を増設して二重窓とする場合にも適用できる。既存の外窓を利用することで、コストが抑えられる。 The double window, the double window inner window, and the method of forming the double window of the present invention are not limited to the case where the outer window 1 and the inner window 2 are simultaneously installed in a new building, but an existing single sash (outer window). The present invention can also be applied to a case in which the inner window 2 is later added to the window to which 1) is attached to form a double window. Costs can be reduced by using existing windows.

本発明は以上に述べた実施形態に限定されない。外窓と内窓の形態は任意であり、引違い窓に限らず、嵌め殺し窓や開き窓等であってもよい。外窓と内窓の通気部は、必ずしも上框に孔を開けるなどして設けたものでなくてもよく、例えば上框と上枠との隙間を通気部とし、その隙間から空気が流入・流出するものであってもよい。外窓の通気部は、竪枠や下枠等に設けることもできる。空気の流れに抵抗を与える抵抗部は、通気部のうちの何れに設けてあってもよく、外窓の通気部に設けることもできる。また、抵抗部としてグラスウールやウレタンフォーム等のポーラス材を用いる以外に、アルミ等のパンチングパネルや、通気部内の対向する面に互い違いに突設した櫛歯状のフィンを抵抗部とすることもできる。 The present invention is not limited to the embodiments described above. The form of the outer window and the inner window is arbitrary, and is not limited to the sliding window, but may be a fitting window or a case window. The ventilation part of the outer window and the inner window does not necessarily have to be provided by making a hole in the upper lid, for example, the gap between the upper lid and the upper frame is used as a ventilation part, and air flows in through the gap. It may be an outflow. The ventilation part of an outer window can also be provided in a collar frame, a lower frame, etc. The resistance portion that provides resistance to the air flow may be provided in any of the ventilation portions, or may be provided in the ventilation portion of the outer window. In addition to using a porous material such as glass wool or urethane foam as the resistance portion, a punching panel such as aluminum or comb-like fins protruding alternately on opposing surfaces in the ventilation portion can be used as the resistance portion. .

１外窓
２内窓
３中間層
４外窓の通気部
５内窓の通気部
６ポーラス材（抵抗部）
７ハニカムブラインド（整流体）
８ブラインド（整流体）
９整流ガイド（整流体）
４９透明ロールスクリーン（整流体）
５２一般ロールスクリーン（整流体）
５４引違い戸（整流体） DESCRIPTION OF SYMBOLS 1 Outer window 2 Inner window 3 Middle layer 4 Outer window ventilation part 5 Inner window ventilation part 6 Porous material (resistance part)
7 Honeycomb blind (rectifier)
8 Blind (rectifier)
9 Rectification guide (rectifier)
49 Transparent roll screen (rectifier)
52 General roll screen (rectifier)
54 Sliding door (rectifier)

Claims

室内を室外に対して正圧及び／又は負圧に調整できる部屋の屋外に面した開口部に設置されるものであって、外窓と内窓と整流体とを備え、外窓と内窓は通気部を有し、通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあり、整流体は、外窓と内窓の間の中間層に設けてあり、中間層内の空気の流れを外窓と内窓に沿うように迂回させるものであり、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れるようにしたことを特徴とする二重窓。 The room is installed in an opening facing the outside of the room that can be adjusted to a positive pressure and / or a negative pressure with respect to the outside , and includes an outer window, an inner window, and a rectifier, and the outer window and the inner window Has a ventilation part, and a resistance part that provides resistance to the air flow is provided in one of the ventilation parts, and the rectifier is provided in an intermediate layer between the outer window and the inner window. The air flow is diverted along the outer window and the inner window, and the air flows indoors and outdoors through the ventilation part of the outer window, the middle layer and the ventilation part of the inner window. window.

室内を室外に対して正圧及び／又は負圧に調整できる部屋の屋外に面した開口部に設置されるものであって、外窓と内窓と整流体とを備え、外窓と内窓は通気部を有し、通気部のいずれかに空気の流れに抵抗を与える抵抗部が設けてあり、抵抗部は、抵抗の強さを調節可能であり、整流体は、外窓と内窓の間の中間層に設けてあり、中間層内の空気の流れを外窓と内窓に沿うように迂回させるものであり、外窓の通気部と中間層と内窓の通気部を通じて室内外を空気が流れるようにしたことを特徴とする二重窓。 The room is installed in an opening facing the outside of the room that can be adjusted to a positive pressure and / or a negative pressure with respect to the outside, and includes an outer window, an inner window, and a rectifier, and the outer window and the inner window Has a ventilation part, and a resistance part that gives resistance to the flow of air is provided in one of the ventilation parts. The resistance part can adjust the strength of the resistance, and the rectifier has an outer window and an inner window. The air flow in the intermediate layer is diverted along the outer window and the inner window, and indoors and outdoors through the ventilation part of the outer window and the ventilation layer of the intermediate layer and the inner window. Double windows characterized by allowing air to flow through.

外窓と内窓の一方が単板ガラスで他方が複層ガラスであることを特徴とする請求項１又は２に記載の二重窓。 3. The double window according to claim 1, wherein one of the outer window and the inner window is a single plate glass and the other is a double glazing .