JP2022066620A

JP2022066620A - Fixture

Info

Publication number: JP2022066620A
Application number: JP2020175065A
Authority: JP
Inventors: 久夫大西; Hisao Onishi; 則良谷口; Noriyoshi Taniguchi; 和也木下; Kazuya Kinoshita; 豊大浦; Yutaka Oura
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2022-05-02

Abstract

To provide a fixture that may be ventilated 24 hours a day.SOLUTION: A fixture includes a frame 1, the frame 1 having a ventilation hole 6a that opens on an outdoor side toward an inner peripheral side, ventilation holes 6e, 6f that open on an indoor side toward the inner peripheral side, and ventilation holes 6b, 6c, 6d penetrating in indoor-outdoor directions at a location on an outer peripheral side than the ventilation holes 6a, 6e, 6f; the ventilation holes 6a, 6b, 6c, 6d, 6e, 6f form a ventilation path 2 communicating through the indoor and outdoor sides, and heat foaming materials 12a, 12b, 12c are provided in the ventilation path 2 for blocking the ventilation holes 6a, 6b close to the outdoor side and the ventilation holes 6d, 6e close to the indoor side at a time of fire.SELECTED DRAWING: Figure 1

Description

本発明は、室内外に連通する通気経路を設けた建具に関する。 The present invention relates to a fitting provided with a ventilation path that communicates indoors and outdoors.

建物の室内環境は、空調設備で制御していたが、窓からの熱の出入りが多く電気代がかかるため、電気代の削減に貢献できる窓が求められていた。 The indoor environment of the building was controlled by air-conditioning equipment, but since heat flows in and out of the windows and electricity costs are high, windows that can contribute to the reduction of electricity costs have been sought.

本発明は以上に述べた実情に鑑み、２４時間換気が行える建具の提供を目的とする。 In view of the above-mentioned circumstances, an object of the present invention is to provide a fitting that can be ventilated for 24 hours.

上記の課題を達成するために請求項１記載の発明による建具は、枠を備え、枠は、室外側に内周側に向けて開口した通気口と、室内側に内周側に向けて開口した通気口と、両通気口よりも外周側の位置に室内外方向に貫通する通気口を有し、これらの通気口により室内外に連通する通気経路が形成してあり、通気経路内に火災時に室外側寄りの通気口及び室内側寄りの通気口を塞ぐ加熱発泡材が設けてあることを特徴とする。 In order to achieve the above-mentioned problems, the fitting according to the invention according to claim 1 is provided with a frame, and the frame has a vent opening on the outdoor side toward the inner peripheral side and an opening on the indoor side toward the inner peripheral side. It has a vent that penetrates indoors and outdoors at a position on the outer peripheral side of both vents, and these vents form a ventilation path that communicates indoors and outdoors, and a fire occurs in the ventilation path. It is characterized by being provided with a heated foam material that sometimes closes a vent near the outdoor side and a vent near the indoor side.

請求項１記載の発明による建具は、枠を備え、枠は、室外側に内周側に向けて開口した通気口と、室内側に内周側に向けて開口した通気口と、両通気口よりも外周側の位置に室内外方向に貫通する通気口を有し、これらの通気口により室内外に連通する通気経路が形成してあることで、通気経路を通じて２４時間換気が行え、空調設備による電気代の削減に貢献できる。さらに本発明の建具は、通気経路内に火災時に室外側寄りの通気口及び室内側寄りの通気口を塞ぐ加熱発泡材が設けてあることで、防火性能を付与できる。 The fitting according to the invention according to claim 1 is provided with a frame, and the frame includes a vent opening on the outdoor side toward the inner peripheral side, a vent opening on the indoor side toward the inner peripheral side, and both vents. It has ventilation holes that penetrate in the indoor and outdoor directions at a position on the outer peripheral side, and by forming ventilation paths that communicate indoors and outdoors through these ventilation holes, ventilation can be performed for 24 hours through the ventilation paths, and air conditioning equipment. Can contribute to the reduction of electricity bills. Further, the fitting of the present invention can be imparted with fire prevention performance by providing a heated foam material in the ventilation path for blocking the ventilation port near the outdoor side and the ventilation port near the indoor side in the event of a fire.

図２に示す建具の外窓の上枠側の部分を拡大して示す縦断面図である。It is a vertical cross-sectional view which shows the part on the upper frame side of the outer window of the fitting shown in FIG. 2 in an enlarged manner. 本発明の建具の一実施形態を示す縦断面図である。It is a vertical sectional view which shows one Embodiment of the fitting of this invention. 同建具の横断面図である。It is a cross-sectional view of the fitting. 図１のＡ矢視図である。It is the A arrow view of FIG. 図１のＢ矢視図である。It is a B arrow view of FIG. （ａ）は通気枠本体の側面図、（ｂ）は通気枠本体の室外側面図、（ｃ）は通気枠本体の室内側面図である。(A) is a side view of the ventilation frame main body, (b) is an outdoor side view of the ventilation frame main body, and (c) is an indoor side view of the ventilation frame main body. 外窓の上枠側の部分を拡大して示す縦断面図であって、火災時に加熱発泡材が発泡したときの状態を示す。It is a vertical cross-sectional view which shows the part on the upper frame side of an outer window enlarged, and shows the state when the heated foaming material foams at the time of a fire. 本発明の建具の他の実施形態を示す縦断面図である。It is a vertical sectional view which shows the other embodiment of the fitting of this invention.

以下、本発明の実施の形態を図面に基づいて説明する。図１～３は、本発明の建具の一実施形態を示している。本建具は、図２，３に示すように、外窓１３と内窓１４とからなる二重窓に適用したものである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of the fitting of the present invention. As shown in FIGS. 2 and 3, this fitting is applied to a double-glazed window composed of an outer window 13 and an inner window 14.

外窓１３は、図２，３に示すように、アルミ形材よりなる上枠１５と下枠１６と左右の縦枠１７，１７とを枠組みしてなる枠１８と、上下枠１５，１６に沿って摺動可能に設けた外障子１９ａ及び内障子１９ｂと、上枠１５の外周側に設けた通気枠１とを備えている。枠１８は、一般的なビル用の引き違いサッシの枠をそのまま用いている。通気枠１は、図１，２に示すように、室外から室内（外窓・内窓間の中間層２０）に連通する通気経路２を有している。 As shown in FIGS. It includes an outer sash 19a and an inner sash 19b slidably provided along the line, and a ventilation frame 1 provided on the outer peripheral side of the upper frame 15. As the frame 18, the frame of the sliding sash for a general building is used as it is. As shown in FIGS. 1 and 2, the ventilation frame 1 has a ventilation path 2 that communicates from the outside to the inside (intermediate layer 20 between the outer window and the inner window).

通気枠１は、横枠のみからなり、図１に示すように、通気枠本体２１と、通気枠本体２１の室外側に取付けた室外側カバー材（カバー材）３と、通気枠本体２１の室内側に取付けた室内側カバー材２２とを有する。通気枠１は、室外側に室外側カバー材３により室外側空間２３が形成され、室内外方向の中間部に通気枠本体２１により中間空間２４が形成され、室内側に室内側カバー材２２により室内側空間２５が形成されている。通気枠本体２１と室外側カバー材３と室内側カバー材２２は、それぞれアルミ形材で形成した長尺材である。通気枠１の長手方向両端部には、側板２６が取付けてある。 The ventilation frame 1 is composed of only a horizontal frame, and as shown in FIG. 1, the ventilation frame main body 21, the outdoor cover material (cover material) 3 attached to the outdoor side of the ventilation frame main body 21, and the ventilation frame main body 21 It has an indoor side cover material 22 attached to the indoor side. In the ventilation frame 1, the outdoor space 23 is formed on the outdoor side by the outdoor cover material 3, the intermediate space 24 is formed by the ventilation frame main body 21 in the intermediate portion in the indoor / outdoor direction, and the indoor side cover material 22 forms the intermediate space 24 on the indoor side. The indoor space 25 is formed. The ventilation frame main body 21, the outdoor side cover material 3, and the indoor side cover material 22 are long materials each made of an aluminum profile. Side plates 26 are attached to both ends of the ventilation frame 1 in the longitudinal direction.

室外側カバー材３は、図１に示すように、見付壁４と見込壁５を有しており、見込壁５は見付壁４の下端より１５ｍｍ上に上がった位置に設けてある。見込壁５には、室外と通じる通気口６ａが内周側に向けて開口して設けてある。通気口６ａは、図４に示すように、略矩形の長孔状で、長手方向に間隔をおいて複数形成されている。通気口６ａは、見込方向の寸法をできるだけ大きくし、通気口６ａ同士の間隔は通気口６ａの左右寸法に対して短くしてあって、見込壁５の面積の半分以上を通気口６ａが占めている。このように見込壁５に通気口６ａが大きく形成してあっても、図１に示すように、通気口６ａの室外側に見付壁４が垂下していることで、雨水が通気口６ａから浸入するのを防いでいる。
見込壁５の上面には防虫網２７が取付けてあり、通気口６ａからの虫の侵入を防いでいる。防虫網２７は、ステンレス製の金網で形成してあり、室内外方向の両端部を見込壁５の上面に対向して形成した溝２８に係止して取付けてある。見込壁５は、左右両端部を側板２６に取付けられた金具２９に下方からのねじ３２でねじ止めしてある。
見付壁４の上端部室内側面には、断面略Ｃ字形の嵌合溝３０が形成してあり、この嵌合溝３０を通気枠本体２１の室外側に形成された軸部３１に室外側から嵌着することでヒンジ部７が構成されている。室外側カバー材３は、ねじ３２を外すと、図１中に仮想線で示すように、ヒンジ部７を支点として室外側に回動自在となる。 As shown in FIG. 1, the outdoor cover material 3 has a finding wall 4 and a prospective wall 5, and the prospective wall 5 is provided at a position 15 mm above the lower end of the finding wall 4. The prospect wall 5 is provided with a vent 6a that communicates with the outside so as to open toward the inner peripheral side. As shown in FIG. 4, the vents 6a have a substantially rectangular elongated hole shape, and a plurality of vents 6a are formed at intervals in the longitudinal direction. The size of the vent 6a in the prospective direction is made as large as possible, the distance between the vents 6a is shortened with respect to the left and right dimensions of the vent 6a, and the vent 6a occupies more than half of the area of the prospect wall 5. ing. Even if the vent 6a is formed large on the prospect wall 5 in this way, as shown in FIG. 1, the finding wall 4 hangs down on the outdoor side of the vent 6a, so that rainwater can flow into the vent 6a. It prevents it from invading from.
An insect net 27 is attached to the upper surface of the prospect wall 5 to prevent insects from invading from the vent 6a. The insect repellent net 27 is formed of a stainless steel wire mesh, and is attached by being locked to a groove 28 formed so as to face the upper surface of the prospective wall 5 at both ends in the indoor and outdoor directions. The left and right ends of the prospect wall 5 are screwed to the metal fittings 29 attached to the side plates 26 with screws 32 from below.
A fitting groove 30 having a substantially C-shaped cross section is formed on the indoor side surface of the upper end portion of the finding wall 4, and the fitting groove 30 is provided on the outdoor side of the shaft portion 31 formed on the outdoor side of the ventilation frame main body 21. The hinge portion 7 is configured by fitting from. When the screw 32 is removed, the outdoor cover material 3 becomes rotatable outward with the hinge portion 7 as a fulcrum, as shown by a virtual line in FIG.

通気枠本体２１は、図１に示すように、上壁３３と下壁３４と室外側の見付壁１０と室内側の見付壁１１とで中間空間２４が形成されている。室外側の見付壁１０には、通気口６ｂが大きく形成してある。通気口６ｂは、図６（ｂ）に示すように、略矩形の長孔状で、長手方向に間隔をおいて複数形成されている。通気口６ｂは、上下方向の寸法をできるだけ大きくし、通気口６ｂ同士の間隔は通気口６ｂの左右寸法に対して短くしてあり、見付壁１０の面積の大部分を通気口６ｂが占めている。なお、室外側の見付壁１０の室外側面にも、防虫網２７を取付けることができる。
図１に示すように、通気口６ｂの下方に隣接する位置には、室外側に向けて突出する水返し片３６が設けてあり、該水返し片３６により雨水が通気口６ｂに浸入するのを防いでいる。
室内側の見付壁１１には、図１と図６（ｃ）に示すように、細い長孔状の通気口６ｃが長手方向に間隔をおいて複数形成してある。室内側の見付壁１１の通気口６ｃは室外側の見付壁１０の通気口６ｂと比べて小さくなっている。したがって、室内側の見付壁１１の通気口６ｃの合計面積は、室外側の見付壁１０の通気口６ｂの合計面積よりも小さくなっている。
下壁３４は、室外側が低くなるように傾斜した傾斜面３７が設けてある。 As shown in FIG. 1, in the ventilation frame main body 21, an intermediate space 24 is formed by an upper wall 33, a lower wall 34, an outdoor side finding wall 10, and an indoor side finding wall 11. A large vent 6b is formed on the outdoor side finding wall 10. As shown in FIG. 6B, the vents 6b have a substantially rectangular elongated hole shape, and a plurality of vents 6b are formed at intervals in the longitudinal direction. The vertical dimension of the vent 6b is made as large as possible, the distance between the vents 6b is shortened with respect to the left-right dimension of the vent 6b, and the vent 6b occupies most of the area of the found wall 10. ing. The insect screen 27 can also be attached to the outdoor surface of the outdoor finding wall 10.
As shown in FIG. 1, a water return piece 36 projecting toward the outdoor side is provided at a position adjacent to the lower side of the vent 6b, and the water return piece 36 allows rainwater to enter the ventilation port 6b. Is prevented.
As shown in FIGS. 1 and 6 (c), a plurality of narrow elongated hole-shaped vents 6c are formed on the finding wall 11 on the indoor side at intervals in the longitudinal direction. The vent 6c of the finding wall 11 on the indoor side is smaller than the vent 6b of the finding wall 10 on the outdoor side. Therefore, the total area of the ventilation holes 6c of the finding wall 11 on the indoor side is smaller than the total area of the ventilation holes 6b of the finding wall 10 on the outdoor side.
The lower wall 34 is provided with an inclined surface 37 that is inclined so that the outdoor side is low.

通気枠１は、上記のように室外側カバー材３の見込壁５と通気枠本体２１の室外側の見付壁１０とに通気口６ａ，６ｂを大きく形成し、通気枠本体２１の室内側の見付壁１１に通気口６ｃを小さく形成してあることで、室外側空間２３と中間空間２４が外気と等圧になっている。これにより、内外圧力差により雨水が通気経路２に吸い込まれるのを防いでおり、多少雨水が通気口６ａ，６ｂより浸入したとしても、室外側の通気口６ａから速やかに排水される。室内側空間２５は、室内に近い気圧になっている。 As described above, the ventilation frame 1 has large ventilation holes 6a and 6b formed in the prospective wall 5 of the outdoor cover material 3 and the outdoor side finding wall 10 of the ventilation frame main body 21, and the indoor side of the ventilation frame main body 21. Since the ventilation holes 6c are formed small on the found wall 11, the outdoor space 23 and the intermediate space 24 are at the same pressure as the outside air. This prevents rainwater from being sucked into the ventilation path 2 due to the pressure difference between the inside and outside, and even if some rainwater infiltrates through the ventilation holes 6a and 6b, it is quickly drained from the ventilation holes 6a on the outdoor side. The indoor space 25 has an air pressure close to that of the indoor space.

上壁３３は、図１に示すように、室外側の見付壁１０よりも室外側に突出しており、その突出した部分は室外側が低くなるように傾斜しており、先端部が下向きに曲がっている。室外側カバー材３が連結される軸部３１は、上壁３３から下方に離間して設けてあり、上壁３３の先端部がヒンジ部７を覆うひさし３８になっている。これにより、ヒンジ部７からの雨水の浸入を防いでいる。
上壁３３の室内外方向の中間位置には、外周側に向けて突出する突出片３９を有し、その室内側にアンカー４０の係止部４１を有し、該係止部４１に係止したアンカー４０により通気枠１が躯体４２に固定されている。通気枠本体２１と躯体４２との間は、室外側からシール材４３を充填してシールしてある。
通気枠本体２１の下面の室内側寄りには、中空の突部４４が形成してあり、突部４４の下面側に上枠１５のアンカー係合部４５に係合する係合片４６と、上枠１５をねじ止めするためのねじ止め片４７を有している。通気枠本体２１は、係合片４６を上枠１５のアンカー係合部４５に係合し、上枠１５の突出片４８を突部４４の室外側壁に室外側からのねじ４９でねじ止めし、ねじ止め片４７を上枠１５に室内側からのねじ５０でねじ止めして、上枠１５と連結してある。上枠１５と通気枠本体２１との隙間は、室外側からシール材５１を充填してシールしてあり、シール材５１は室外側の通気口６ａよりも室内側に位置している。シール材５１の充填作業は、図中に二点鎖線で示すように、室外側カバー材３をヒンジ部７を支点に室外側に回動させた状態で行うことができる。 As shown in FIG. 1, the upper wall 33 projects to the outside of the outdoor side of the found wall 10, and the protruding portion is inclined so that the outdoor side is low, and the tip portion thereof downwards. bent. The shaft portion 31 to which the outdoor side cover material 3 is connected is provided so as to be separated downward from the upper wall 33, and the tip portion of the upper wall 33 is a eave 38 that covers the hinge portion 7. This prevents rainwater from entering from the hinge portion 7.
At the intermediate position of the upper wall 33 in the indoor / outdoor direction, a projecting piece 39 projecting toward the outer peripheral side is provided, and a locking portion 41 of the anchor 40 is provided on the indoor side thereof, and is locked to the locking portion 41. The ventilation frame 1 is fixed to the skeleton 42 by the anchor 40. The space between the ventilation frame main body 21 and the skeleton 42 is sealed by filling a sealing material 43 from the outdoor side.
A hollow protrusion 44 is formed on the lower surface side of the lower surface of the ventilation frame main body 21 toward the indoor side, and an engaging piece 46 that engages with the anchor engaging portion 45 of the upper frame 15 is formed on the lower surface side of the protrusion 44. It has a screwing piece 47 for screwing the upper frame 15. In the ventilation frame main body 21, the engaging piece 46 is engaged with the anchor engaging portion 45 of the upper frame 15, and the protruding piece 48 of the upper frame 15 is screwed to the outdoor wall of the protrusion 44 with a screw 49 from the outdoor side. , The screwed piece 47 is screwed to the upper frame 15 with a screw 50 from the indoor side and connected to the upper frame 15. The gap between the upper frame 15 and the ventilation frame main body 21 is sealed by filling the sealing material 51 from the outdoor side, and the sealing material 51 is located on the indoor side of the ventilation port 6a on the outdoor side. The filling operation of the sealing material 51 can be performed in a state where the outdoor cover material 3 is rotated to the outdoor side with the hinge portion 7 as a fulcrum, as shown by the alternate long and short dash line in the drawing.

室内側カバー材２２は、図１に示すように、略Ｌ形断面の二部材２２ａ，２２ｂを組み合わせて矩形断面の中空状に形成され、そのうちの室外側部材２２ａの見付壁５２に通気口６ｄが通気枠本体２１の通気口６ｃに連通して形成してある。室外側部材２２ａの見込壁８と、その下方に取付けた樹脂カバー５３の見込壁９とには、通気口６ｅ，６ｆが下向きに開口して設けてある。通気口６ｅ，６ｆは、図５に示すように、小さなスリット状で、長手方向に間隔をおいて多数形成してある。上下の通気口６ｅ，６ｆの間には、図１，５に示すように、摘み５４を操作することで左右方向にスライドして通気口６ｅ，６ｆを開閉できるシャッター板５５と、埃や花粉等の侵入を防ぐフィルタ７５が設けてある。 As shown in FIG. 1, the indoor side cover material 22 is formed into a hollow shape having a rectangular cross section by combining two members 22a and 22b having a substantially L-shaped cross section, and a vent is formed in the found wall 52 of the outdoor member 22a. 6d is formed so as to communicate with the ventilation port 6c of the ventilation frame main body 21. Vents 6e and 6f are provided with vents 6e and 6f opened downward in the prospective wall 8 of the outdoor member 22a and the prospective wall 9 of the resin cover 53 attached below the prospective wall 8. As shown in FIG. 5, the vents 6e and 6f have a small slit shape and are formed in large numbers at intervals in the longitudinal direction. Between the upper and lower vents 6e and 6f, as shown in FIGS. 1 and 5, a shutter plate 55 that can slide left and right to open and close the vents 6e and 6f by operating the knob 54, and dust and pollen. A filter 75 is provided to prevent such intrusion.

図１に示すように、室内側カバー材２２の室内側面には、板状の整流体５６が室内側からのノブボルト５７で着脱自在に取付けてある。整流体５６は、下部が室外側に向けて少し曲がっており、これにより室内側の通気口６ｆから流出する空気を室外側に曲げて外窓１３の障子１９ａ，１９ｂのガラス面に沿わせられる。 As shown in FIG. 1, a plate-shaped rectifying body 56 is detachably attached to the indoor side surface of the indoor side cover material 22 with a knob bolt 57 from the indoor side. The lower part of the rectifying body 56 is slightly bent toward the outdoor side, whereby the air flowing out from the ventilation port 6f on the indoor side is bent outward and along the glass surfaces of the shoji screens 19a and 19b of the outer window 13. ..

以上に述べたように通気枠１は、室外側カバー材３の見込壁５に設けた通気口６ａと、通気枠本体２１の室外側及び室内側の見付壁１０，１１に設けた通気口６ｂ，６ｃと、室内側カバー材２２の見付壁５２に設けた通気口６ｄと、室内側カバー材２２及び樹脂カバー５３の見込壁８，９に設けた通気口６ｅ，６ｆとにより、室内外に連通する通気経路２がコ字状の曲がった形で形成してある（図１参照）。
このように通気経路２をコ字状の曲がった形とすること自体にも雨水の浸入を防ぐ効果があるが、本通気枠１は、室外側カバー材３の見付壁４を通気口６ａが設けられた見込壁５よりも下方にのばすこと、通気枠本体２１の室外側の見付壁１０に形成した通気口６ｂの下方に隣接して、室外側に突出する水返し片３６を設けることで、雨水の浸入をより確実に防いでいる。
さらに本通気枠１は、通気枠本体２１の室内側の見付壁１１の通気口６ｃの合計面積を室外側の見付壁１０の通気口６ｂの合計面積よりも小さくしてあることで、室外空間２３と中間空間２４の室外との圧力差が小さくなるので、雨水が内外圧力差によって通気経路２に吸い込まれるのを防ぐことができ、荒天時に雨水が通気経路２に入ったとしても、室外側の通気口６ａから排水される。 As described above, the ventilation frame 1 is provided with ventilation holes 6a provided on the prospective wall 5 of the outdoor cover material 3 and ventilation holes provided on the outdoor and indoor side finding walls 10 and 11 of the ventilation frame main body 21. The interior is provided with 6b and 6c, the ventilation holes 6d provided in the found wall 52 of the indoor side cover material 22, and the ventilation holes 6e and 6f provided in the prospective walls 8 and 9 of the indoor side cover material 22 and the resin cover 53. The ventilation path 2 communicating with the outside is formed in a U-shaped curved shape (see FIG. 1).
Although the ventilation path 2 itself has an effect of preventing rainwater from entering, the ventilation frame 1 has the found wall 4 of the outdoor cover material 3 as the ventilation port 6a. A water return piece 36 projecting to the outside of the room is provided adjacent to the bottom of the ventilation port 6b formed on the outside wall 10 of the ventilation frame main body 21 so as to extend below the prospective wall 5 provided with the above. This prevents the ingress of rainwater more reliably.
Further, in the main ventilation frame 1, the total area of the ventilation holes 6c of the finding wall 11 on the indoor side of the ventilation frame main body 21 is smaller than the total area of the ventilation holes 6b of the finding wall 10 on the outdoor side. Since the pressure difference between the outdoor space 23 and the outdoor space 24 is small, it is possible to prevent rainwater from being sucked into the ventilation path 2 due to the pressure difference between the inside and outside, and even if rainwater enters the ventilation path 2 in stormy weather, It is drained from the vent 6a on the outdoor side.

本通気枠１は、図１に示すように、室外側カバー材３の見付壁４の室内側面の見込壁５の上方に隣接する位置に、火災の熱により発泡・膨張する加熱発泡材１２ａが長手方向の全長に設けてある。さらに、通気枠本体２１の水返し片３６の上面に、見付壁１０の通気口６ｂの室外側に隣接して加熱発泡材１２ｂが長手方向の全長に設けてある。火災時には、図７に示すように、これらの加熱発泡材１２ａ，１２ｂが発泡・膨張して室外側空間２３を埋め、発泡・膨張した加熱発泡材１２ａ，１２ｂで室外側寄りに位置する通気口６ａ，６ｂが塞がれる。加熱発泡材１２ｂは、加熱発泡材１２ａに押されることで、一部が通気口６ｂより中間空間２４に入り込む。
また、室内側カバー材２２の見込壁８の上面に、通気口６ｅの室外側に隣接して加熱発泡材１２ｃが長手方向の全長に設けてある。火災時には、図７に示すように、この加熱発泡材１２ｃが発泡・膨張して室内側空間２５を埋め、発泡・膨張した加熱発泡材１２ｃで室内側寄りに位置する通気口６ｄ，６ｅが塞がれる。そして、通気経路２内で室外側寄りに位置する通気口６ａ，６ｂと室内側寄りに位置する通気口６ｄ，６ｅが加熱発泡材１２ａ，１２ｂ，１２ｃで塞がれることで、通気経路２からの火炎や煙の連通を阻止し、延焼を防止することができる。 As shown in FIG. 1, the ventilation frame 1 is a heated foaming material 12a that foams and expands due to the heat of a fire at a position adjacent to above the prospective wall 5 on the indoor side surface of the finding wall 4 of the outdoor covering material 3. Is provided over the entire length in the longitudinal direction. Further, a heated foam material 12b is provided on the upper surface of the water return piece 36 of the ventilation frame main body 21 adjacent to the outdoor side of the ventilation port 6b of the finding wall 10 over the entire length in the longitudinal direction. In the event of a fire, as shown in FIG. 7, these heated foaming materials 12a and 12b foam and expand to fill the outdoor space 23, and the foamed and expanded heated foaming materials 12a and 12b are vents located closer to the outdoor side. 6a and 6b are blocked. When the heated foaming material 12b is pushed by the heated foaming material 12a, a part of the heated foaming material 12b enters the intermediate space 24 through the vent 6b.
Further, a heated foaming material 12c is provided on the upper surface of the prospective wall 8 of the indoor side cover material 22 adjacent to the outdoor side of the vent 6e over the entire length in the longitudinal direction. In the event of a fire, as shown in FIG. 7, the heated foaming material 12c foams and expands to fill the indoor space 25, and the foamed and expanded heated foaming material 12c closes the vents 6d and 6e located closer to the indoor side. It comes off. Then, the ventilation holes 6a, 6b located closer to the outdoor side and the ventilation holes 6d, 6e located closer to the indoor side in the ventilation path 2 are blocked by the heated foaming materials 12a, 12b, 12c, so that the ventilation path 2 is used. It is possible to prevent the communication of flames and smoke and prevent the spread of fire.

上述の実施形態では、通気枠１の室外側空間２３内の２箇所に加熱発泡材１２ａ，１２ｂを設け、火災時には見込壁５の通気口６ａと見付壁１０の通気口６ｂが両方とも塞がれるようにしているが、室外側空間２３内の１箇所にだけ加熱発泡材を設け、見込壁５の通気口６ａと見付壁１０の通気口６ｂの何れか一方だけが塞がれるようになっていてもよい。
また、上述の実施形態では、通気枠１の室外側空間２３内と室内側空間２５内の両方に加熱発泡材１２ａ，１２ｂ，１２ｃが設けてあるが、室外側空間２３内と室内側空間内２５内のどちらか一方にだけ加熱発泡材が設けてあってもよい。その場合でも、火災時に室外側空間２３と室内側空間２５のどちらか一方が発泡した加熱発泡材で埋まることで、通気経路２からの火炎や煙の連通を防ぐことができる。
なお、実施形態のように通気枠１の室外側空間２３内と室内側空間２５内の両方に加熱発泡材１２ａ，１２ｂ，１２ｃが設けてあれば、室外側で火災が発生したときには室外側の加熱発泡材１２ａ，１２ｂが速やかに発泡して室外側空間２３が埋まり、室内側で火災が発生したときには室内側の加熱発泡材１２ｃが速やかに発泡して室内側空間２５が埋まるため、室外側で火災が発生したときと室内側で火災が発生したときの何れの場合も、火災発生時に早い段階で通気経路２を遮断し、火炎や煙の連通を確実に防ぐことができる。 In the above-described embodiment, the heated foaming materials 12a and 12b are provided at two locations in the outdoor space 23 of the ventilation frame 1, and in the event of a fire, both the ventilation holes 6a of the prospective wall 5 and the ventilation holes 6b of the finding wall 10 are closed. Although it is designed to be peeled off, a heated foam material is provided only in one place in the outdoor space 23 so that only one of the vent 6a of the prospective wall 5 and the vent 6b of the found wall 10 is blocked. It may be.
Further, in the above-described embodiment, the heated foaming materials 12a, 12b, 12c are provided in both the outdoor space 23 and the indoor space 25 of the ventilation frame 1, but the outdoor space 23 and the indoor space 25 are provided. The heated foaming material may be provided on only one of the 25 parts. Even in that case, by filling either one of the outdoor space 23 and the indoor space 25 with the foamed heating foam material in the event of a fire, it is possible to prevent the communication of flames and smoke from the ventilation path 2.
If the heated foaming materials 12a, 12b, 12c are provided in both the outdoor space 23 and the indoor space 25 of the ventilation frame 1 as in the embodiment, when a fire breaks out on the outdoor side, the outdoor side is provided. The heated foam materials 12a and 12b quickly foam to fill the outdoor space 23, and when a fire breaks out on the indoor side, the heated foam material 12c on the indoor side quickly foams to fill the indoor space 25, so that the outdoor space 25 is filled. In both cases when a fire breaks out in the room and when a fire breaks out inside the room, the ventilation path 2 can be cut off at an early stage when the fire breaks out, and the communication of flames and smoke can be reliably prevented.

また本通気枠１は、室外側カバー材３が見付壁４の上部に設けたヒンジ部７を支点に室外側に回動自在であり、室外側カバー材３を室外側に回動させることで、通気枠１内のメンテナンス、例えば防虫網２７の交換等を容易に行うことができる。さらに、室外側カバー材３を室外側に回動させることで、通気枠本体２１と上枠１５間にシール材５１を充填する作業も容易に行うことができる。室外側カバー材３がヒンジ部７で通気枠本体２１と連結されているため、上記の通気枠１のメンテナンス作業や通気枠本体２１と上枠１５間のシール作業を行う際に室外側カバー材３が脱落することがなく、作業性が良い。 Further, the ventilation frame 1 is rotatable outward with the hinge portion 7 provided on the upper part of the finding wall 4 as a fulcrum for the outdoor cover material 3, and the outdoor cover material 3 is rotated to the outdoor side. Therefore, maintenance inside the ventilation frame 1, for example, replacement of the insect screen 27 can be easily performed. Further, by rotating the outdoor cover material 3 to the outdoor side, the work of filling the sealing material 51 between the ventilation frame main body 21 and the upper frame 15 can be easily performed. Since the outdoor cover material 3 is connected to the ventilation frame main body 21 by the hinge portion 7, the outdoor cover material 3 is used for maintenance work of the ventilation frame 1 and sealing work between the ventilation frame main body 21 and the upper frame 15. Workability is good because 3 does not fall off.

図８は、通気枠１の他の実施形態を示している。室外側カバー材３は、見込壁５が室外側が高くなるように傾斜して設けてある。このように見込壁５を傾斜して設けることで、見込壁５の通気口６ａから雨水が浸入したときに、雨水が見込壁５上に溜まらずに流下するため、排水性が向上する。 FIG. 8 shows another embodiment of the ventilation frame 1. The outdoor cover material 3 is provided so that the prospect wall 5 is inclined so that the outdoor side is high. By providing the prospect wall 5 in an inclined manner in this way, when rainwater enters from the vent 6a of the prospect wall 5, the rainwater flows down without collecting on the prospect wall 5, so that the drainage property is improved.

以上に述べたように本建具は、通気枠１を備え、通気枠１は、室内外に連通する通気経路２を有しているので、通気経路２を通じて２４時間換気が行え、空調設備による電気代の削減に貢献できる。しかも通気枠１は、室外側にカバー材３が設けてあり、カバー材３は、見付壁４と見込壁５を有し、見込壁５に室外に面した通気口６ａが設けてあり、見付壁４の上端部に設けたヒンジ部７を支点に室外側に回動自在であるため、カバー材３をヒンジ部７を支点に室外側に回動させることで、通気枠１内部のメンテナンスが行え、その際にカバー材３が脱落することがない。
通気枠１は、ヒンジ部７を覆うひさし３８を有しているので、ヒンジ部７から雨水が浸入するのを防ぐことができる。
さらに、カバー材３は、見付壁４の下部が見込壁５より下方に突出していることで、見込壁５の通気口６ａから雨水が浸入するのを防ぐことができる。 As described above, this fitting is provided with a ventilation frame 1, and since the ventilation frame 1 has a ventilation path 2 communicating with the inside and outside of the room, ventilation can be performed for 24 hours through the ventilation path 2 and electricity by the air conditioning equipment. It can contribute to the reduction of bills. Moreover, the ventilation frame 1 is provided with a cover material 3 on the outdoor side, the cover material 3 has a finding wall 4 and a prospective wall 5, and the prospective wall 5 is provided with a vent 6a facing the outdoor side. Since the hinge portion 7 provided at the upper end of the finding wall 4 can be rotated to the outdoor side with the hinge portion 7 as a fulcrum, the cover material 3 can be rotated to the outdoor side with the hinge portion 7 as the fulcrum to inside the ventilation frame 1. Maintenance can be performed, and the cover material 3 does not fall off at that time.
Since the ventilation frame 1 has a canopy 38 that covers the hinge portion 7, it is possible to prevent rainwater from entering from the hinge portion 7.
Further, since the lower portion of the finding wall 4 projects below the prospective wall 5, the cover material 3 can prevent rainwater from entering through the vent 6a of the prospective wall 5.

また本建具は、枠（通気枠）１を備え、枠１は、室外側に設けた見込壁５と、室内側に設けた見込壁８，９と、室外側及び室内側の見込壁５，８，９の外周側に位置する見付壁１０，１１，５２を有し、これらの見込壁５，８，９と見付壁１０，１１，５２とに枠１の長手方向に間隔をおいて複数の通気口６ａ，６ｂ，６ｃ，６ｄ，６ｅ，６ｆが設けてあり、これらの通気口により、室内外に連通する通気経路２がコ字状に曲がった形で形成してあるので、通気経路２を通じて２４時間換気が行え、空調設備による電気代の削減に貢献できる。
見付壁１０，１１は、室内外方向に間隔をおいて複数設けてあり、室内側の見付壁１１の通気口６ｃの合計面積を室外側の見付壁１０の通気口６ｂの合計面積よりも小さくしてあることで、室内側の見付壁１１よりも室外側の通気経路４内の室外との圧力差が小さくなるため、圧力差によって雨水が通気経路２に吸い込まれるのを防ぐことができ、仮に通気経路２に雨水が浸入したとしても室外側の通気口６ａから排水できる。 Further, this fitting includes a frame (ventilation frame) 1, and the frame 1 includes a prospect wall 5 provided on the outdoor side, prospective walls 8 and 9 provided on the indoor side, and prospective walls 5 on the outdoor side and the indoor side. It has finding walls 10, 11 and 52 located on the outer peripheral side of 8 and 9, and the prospect walls 5, 8 and 9 and the finding walls 10, 11 and 52 are spaced apart from each other in the longitudinal direction of the frame 1. Therefore, a plurality of ventilation holes 6a, 6b, 6c, 6d, 6e, and 6f are provided, and the ventilation paths 2 communicating with the inside and outside of the room are formed in a U-shaped shape by these ventilation holes. Ventilation can be performed for 24 hours through the ventilation path 2, which can contribute to the reduction of electricity costs by the air conditioning equipment.
A plurality of finding walls 10 and 11 are provided at intervals in the indoor and outdoor directions, and the total area of the ventilation holes 6c of the finding wall 11 on the indoor side is the total area of the ventilation holes 6b of the finding wall 10 on the outdoor side. Since the pressure difference between the inside of the ventilation path 4 and the outside of the room is smaller than that of the found wall 11 on the indoor side, it is possible to prevent rainwater from being sucked into the ventilation path 2 due to the pressure difference. Even if rainwater intrudes into the ventilation path 2, it can be drained from the ventilation port 6a on the outdoor side.

また本建具は、枠（通気枠）１を備え、枠１は、室外側に内周側に向けて開口した通気口６ａと、室内側に内周側に向けて開口した通気口６ｅ，６ｆと、両通気口６ａ，６ｅ，６ｆよりも外周側の位置に室内外方向に貫通する通気口６ｂ，６ｃ，６ｄを有し、これらの通気口６ａ，６ｂ，６ｃ，６ｄ，６ｅ，６ｆにより室内外に連通する通気経路２が形成してあることで、通気経路２を通じて２４時間換気が行え、空調設備による電気代の削減に貢献できる。さらに本発明の建具は、通気経路２内に火災時に室外側寄りの通気口６ａ，６ｂ及び室内側寄りの通気口６ｄ，６ｅを塞ぐ加熱発泡材１２ａ，１２ｂ，１２ｃが設けてあることで、防火性能を付与できる。 Further, this fitting includes a frame (ventilation frame) 1, and the frame 1 has a ventilation port 6a opened toward the inner peripheral side on the outdoor side and a ventilation port 6e, 6f opened toward the inner peripheral side on the indoor side. And, there are ventilation holes 6b, 6c, 6d penetrating in the indoor and outdoor directions at positions on the outer peripheral side of both ventilation holes 6a, 6e, 6f, and these ventilation holes 6a, 6b, 6c, 6d, 6e, 6f Since the ventilation path 2 communicating indoors and outdoors is formed, ventilation can be performed for 24 hours through the ventilation path 2, which can contribute to the reduction of electricity costs by the air conditioning equipment. Further, the fitting of the present invention is provided with heated foaming materials 12a, 12b, 12c in the ventilation path 2 for closing the ventilation holes 6a, 6b near the outdoor side and the ventilation holes 6d, 6e near the indoor side in the event of a fire. Fire protection performance can be added.

内窓１４は、図２，３に示すように、四周の額縁５８の内周側面に取付けた上枠５９と下枠６０及び左右の縦枠６１，６１と、上下枠５９，６０間に引違い状に開閉自在に収めた外障子６２ａ及び内障子６２ｂを備えている。枠５９，６０，６１と障子６２ａ，６２ｂの框は、樹脂製である。障子６２ａ，６２ｂのガラス６３は、複層ガラスである。外窓１３の枠１８と内窓１４の枠５９，６０，６１の間には木製の額縁５８があるため、外窓１３と内窓１４とは熱的に分離されている。 As shown in FIGS. It is equipped with an external sash 62a and an internal sash 62b that can be opened and closed in different ways. The frames 59, 60, 61 and the stiles of the shoji 62a, 62b are made of resin. The glass 63 of the shoji 62a and 62b is double glazing. Since there is a wooden frame 58 between the frame 18 of the outer window 13 and the frames 59, 60, 61 of the inner window 14, the outer window 13 and the inner window 14 are thermally separated from each other.

内窓１４は、図２に示すように、上枠５９の外周側に換気装置６４が設けてある。換気装置６４は、アルミ形材よりなる上形材６５と下形材６６とを上下に組み合わせて構成してあり、上形材６５と下形材６６の間に室内外方向に連通する通気部６７が設けてある。
下形材６６は、室外側端部と室内側端部とに上向きに突出して突片６８ａ，６８ｂが形成してあり、室外側の突片６８ａと上形材６５との間に室外側通気口６９ａが長手方向に形成され、室内側の突片６８ｂと上形材６５との間に室内側通気口６９ｂが長手方向に形成されている。
上形材６５は、室外側端部に整流板７０が垂下して一体に設けてあり、整流板７０は室外側通気口６９ａの室外側に対向している。また上形材６５は、室外側通気口６９ａと室内側通気口６９ｂの間に２つの連結壁７１ａ，７１ｂが垂下して設けてあり、各連結壁７１ａ，７１ｂの先端部を下形材６６の上面に形成された溝７２に係合することで、上形材６５と下形材６６とが連結されている。連結壁７１ａ，７１ｂには、通気口７３が長手方向に間隔をおいて複数形成してある。 As shown in FIG. 2, the inner window 14 is provided with a ventilation device 64 on the outer peripheral side of the upper frame 59. The ventilation device 64 is composed of an upper profile member 65 made of an aluminum profile and a lower profile member 66 in an upper and lower combination, and a ventilation portion that communicates between the upper profile member 65 and the lower profile member 66 in the indoor / outdoor direction. 67 is provided.
The lower profile 66 projects upward from the outdoor end and the indoor end to form projecting pieces 68a and 68b, and the outdoor ventilating between the outdoor projecting pieces 68a and the upper profile 65. The mouth 69a is formed in the longitudinal direction, and the indoor ventilation port 69b is formed in the longitudinal direction between the projecting piece 68b on the indoor side and the upper shape member 65.
The upper shape member 65 is integrally provided with a straightening vane 70 hanging from the outdoor end, and the straightening vane 70 faces the outdoor side of the outdoor vent 69a. Further, the upper profile 65 is provided with two connecting walls 71a and 71b hanging between the outdoor vent 69a and the indoor vent 69b, and the tip of each connecting wall 71a and 71b is provided with the lower profile 66. The upper profile member 65 and the lower profile member 66 are connected by engaging with the groove 72 formed on the upper surface of the above. A plurality of ventilation holes 73 are formed on the connecting walls 71a and 71b at intervals in the longitudinal direction.

本建具は、樹脂製の枠５９，６０，６１及び框と複層ガラス６３を用いた内窓１４を設けたことに加え、外窓１３の通気枠１に設けた通気経路２と中間層２０と内窓１４上部に設けた通気部６７を通じて室内外を空気が流れ、その際に中間層２０を空気が外窓１３の内側面と内窓１４の外側面に沿うように迂回して流れることで、空気の流入する方向とは逆方向の熱移動が妨げられ、非常に優れた断熱性能を発揮し、空調設備の電気代のより一層の削減に寄与する。 In this fitting, in addition to providing the inner windows 14 using the resin frames 59, 60, 61 and the stile and the double glazing 63, the ventilation passage 2 and the intermediate layer 20 provided in the ventilation frame 1 of the outer window 13 are provided. Air flows inside and outside the room through the ventilation portion 67 provided in the upper part of the inner window 14, and at that time, the air bypasses the intermediate layer 20 along the inner side surface of the outer window 13 and the outer side surface of the inner window 14. Therefore, heat transfer in the direction opposite to the inflow direction of air is hindered, and excellent heat insulation performance is exhibited, which contributes to further reduction of electricity cost of air conditioning equipment.

冬期の場合について説明すると、換気扇等により室内を負圧に調整し、図２に示すように、本二重窓を空気が室外から室内に向けて流れるようにする。外窓１３の通気枠１から流入した冷たい空気（外気）は、室内側の通気口６ｆが下向きに開口しており、尚且つその室内側に整流体５６が垂下して設けてあることにより、外窓１３のガラス７４の室内側面に沿うように下向きに流出する。その後、冷たい空気はコールドドラフトにより中間層２０の下まで流れてから折り返し、内窓１４のガラス６３から室内の熱が伝わることで暖められ、ガラス６３の室外側面に沿って上昇し、この間にガラス６３から室外に逃げる熱を空気の流れによって回収する。その後、暖められた空気は内窓１４上部の通気部６７を通って室内に流入する。上形材６５に整流板７０が垂下して設けてあることで、ガラス６３の室外側面に沿って上昇した空気が室外側に逆流するのを防ぎ、通気部６７へと導くことができる。空気が通気部６７を通過する際にも、室内の熱で暖められた換気装置６４や上枠５９の熱を空気の流れによって回収する。そうして暖められた空気を室内に取り入れることで、回収した熱を室内に戻すことができる。
このように、中間層２０内を外窓１３と内窓１４に沿うように迂回して空気が流れることで、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。 Explaining the case of winter, the room is adjusted to a negative pressure by a ventilation fan or the like, and as shown in FIG. 2, the air flows from the outside to the room through this double-glazed window. The cold air (outside air) that has flowed in from the ventilation frame 1 of the outer window 13 has a ventilation port 6f on the indoor side that opens downward, and a rectifying body 56 is provided hanging down on the indoor side. It flows downward along the indoor side surface of the glass 74 of the outer window 13. After that, the cold air flows to the bottom of the intermediate layer 20 by the cold draft, then turns back, is warmed by transferring the heat in the room from the glass 63 of the inner window 14, and rises along the outdoor surface of the glass 63, during which the glass The heat escaping from 63 to the outside is recovered by the flow of air. After that, the warmed air flows into the room through the ventilation portion 67 at the upper part of the inner window 14. Since the straightening vane 70 is provided on the upper profile 65 so as to hang down, the air rising along the outdoor surface of the glass 63 can be prevented from flowing back to the outdoor side and can be guided to the ventilation portion 67. Even when the air passes through the ventilation portion 67, the heat of the ventilation device 64 and the upper frame 59 heated by the heat in the room is recovered by the air flow. By taking in the warmed air into the room, the recovered heat can be returned to the room.
In this way, the air flows around the inside of the intermediate layer 20 along the outer window 13 and the inner window 14, so that the heat transferred from the room to the outside is recovered by the air flow and returned to the room, thereby indoors. Since there is almost no heat loss from the window to the outside, very high heat insulation can be obtained. In addition, since the outside air can be warmed up and taken into the room, people in the room do not feel the cold wind, and the heating efficiency is good.

夏期には、換気扇等により室内を正圧に調整し、冬期とは逆に室内から室外に空気が流れるようにする。内窓１４の通気部６７から出た空気は整流板７０に当たって下向きに流れを変え、室内の空気の温度は室外よりも低いので、空気は内窓１４のガラス６３の室外側面に沿って下向きに流れ、その後、中間層２０の下部で折り返し、外窓１３のガラス７４等の熱が伝わることで外窓１３のガラス７４の室内側面に沿って上昇し、この間にガラス７４を通じて室外から室内に入ってくる熱と日射熱を空気の流れによって回収する。その後、外窓１３の通気枠１を通って空気が室外に放出される。空気が通気枠１を通過する際、通気枠１を伝って室内に入ってくる熱を空気の流れによって回収する。そして、空気が室外に放出されることで、ガラス７４や通気枠１から回収した熱と日射熱を室外に捨てる。
このように日射熱及び室外から室内に伝わる熱を空気の流れによって回収し、室外に捨てることで、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。 In the summer, the pressure inside the room is adjusted to positive by using a ventilation fan, etc., so that the air flows from the room to the outside, contrary to the winter. The air emitted from the ventilation portion 67 of the inner window 14 hits the rectifying plate 70 and changes its flow downward, and since the temperature of the indoor air is lower than that of the outdoor air, the air is downward along the outdoor surface of the glass 63 of the inner window 14. After flowing, it is folded back at the lower part of the intermediate layer 20, and the heat of the glass 74 of the outer window 13 is transferred to rise along the indoor side surface of the glass 74 of the outer window 13, and during this time, it enters the room from the outside through the glass 74. The incoming heat and solar heat are recovered by the flow of air. After that, air is discharged to the outside through the ventilation frame 1 of the outer window 13. When the air passes through the ventilation frame 1, the heat that enters the room through the ventilation frame 1 is recovered by the air flow. Then, when the air is released to the outside, the heat recovered from the glass 74 and the ventilation frame 1 and the illuminance heat are discarded to the outside.
In this way, by recovering the solar heat and the heat transmitted from the outside to the room by the air flow and discarding it outside the room, the heat transfer from the outside to the inside of the room, which is the direction opposite to the direction in which the air flows out, is hindered. It has an excellent heat insulating effect and keeps the room cool.

本建具は、外窓１３の上枠１５の外周側に通気枠１を設け、通気枠１に室内外に連通する通気経路２を設けたので、外窓１３の枠１８や障子１９ａ，１９ｂに通気部を設ける必要がない。通気枠１は、室外に面した通気口６ａが下向きに開口して設けてあり、その通気口６ａの室外側に見付壁４が垂下して設けてあることや、通気枠１の室外側空間２３及び中間空間２４を外気と等圧としてあることなどにより、外窓１３に通気経路２を有しながら雨水の浸入を防止することができ、水密性能を確保できる。さらに通気枠２は、通気経路２内の室外側及び室内側で通気口６ａ，６ｂ，６ｄ，６ｅを塞ぐ加熱発泡材１２ａ，１２ｂ，１２ｃが設けてあるので、防火性能を付与できる。 In this fitting, a ventilation frame 1 is provided on the outer peripheral side of the upper frame 15 of the outer window 13, and a ventilation path 2 for communicating indoors and outdoors is provided in the ventilation frame 1, so that the frame 18 of the outer window 13 and the shoji screens 19a and 19b are provided. There is no need to provide a vent. The ventilation frame 1 is provided with a ventilation port 6a facing the outdoor side opening downward, and a finding wall 4 is provided hanging on the outdoor side of the ventilation port 6a, and the ventilation frame 1 is provided on the outdoor side. Since the space 23 and the intermediate space 24 have the same pressure as the outside air, it is possible to prevent rainwater from entering while the outer window 13 has a ventilation path 2, and watertightness can be ensured. Further, since the ventilation frame 2 is provided with the heated foaming materials 12a, 12b, 12c that close the ventilation holes 6a, 6b, 6d, 6e on the outdoor side and the indoor side in the ventilation path 2, fire prevention performance can be imparted.

本発明は以上に述べた実施形態に限定されない。本発明の建具は、二重窓ではなく、単体でも用いることができる。窓種は、引き違い窓に限らず、嵌め殺し窓、すべり出し窓など、すべての窓種に対応することができる。通気枠の形状、材質は、適宜変更することができる。通気口の形状は任意であり、矩形の長孔状に限らず、例えば円形であってもよい。火災時に加熱発泡材によって塞がれる通気口は、室外側寄り又は室内側寄りに位置するものであれば、見込壁に形成した通気口と見付壁に形成した通気口の何れであってもよい。 The present invention is not limited to the embodiments described above. The fitting of the present invention can be used as a single unit instead of the double-glazed window. The window type is not limited to the sliding window, but can be applied to all window types such as a dead-fitting window and a sliding window. The shape and material of the ventilation frame can be changed as appropriate. The shape of the vent is arbitrary, and is not limited to a rectangular elongated hole shape, and may be, for example, a circular shape. The vents that are blocked by the heated foam material in the event of a fire may be either the vents formed on the prospective wall or the vents formed on the found wall, as long as they are located closer to the outdoor side or the indoor side. good.

１通気枠（枠）
２通気経路
３室外側カバー材（カバー材）
４見付壁
５室外側の見込壁
６ａ，６ｂ，６ｃ，６ｄ，６ｅ，６ｆ通気口
７ヒンジ部
８，９室内側の見込壁
１０，１１見付壁
１２ａ，１２ｂ，１２ｃ加熱発泡材 1 Ventilation frame (frame)
2 Ventilation route 3 Outdoor cover material (cover material)
4 Found wall 5 Found wall outside the room 6a, 6b, 6c, 6d, 6e, 6f Vent 7 Hinge part 8, 9 Seeing wall inside 10,11 Found wall 12a, 12b, 12c Heated foam material

Claims

A frame is provided, and the frame has a vent that opens toward the inner circumference side on the outdoor side, a vent that opens toward the inner circumference side on the indoor side, and a position on the outer peripheral side of both vents in the indoor / outdoor direction. It has ventilation holes that penetrate into the room, and these ventilation holes form a ventilation path that communicates indoors and outdoors. Joinery characterized by the provision of materials.