JPH08200768A - Bend cap for duct and ventilating device employing the bend cap for duct - Google Patents
Bend cap for duct and ventilating device employing the bend cap for ductInfo
- Publication number
- JPH08200768A JPH08200768A JP7013296A JP1329695A JPH08200768A JP H08200768 A JPH08200768 A JP H08200768A JP 7013296 A JP7013296 A JP 7013296A JP 1329695 A JP1329695 A JP 1329695A JP H08200768 A JPH08200768 A JP H08200768A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- ventilation
- kitchen
- bend
- shutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 claims description 69
- 238000007789 sealing Methods 0.000 description 9
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 241000238876 Acari Species 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はダクト用ベンドキャップ
とそのダクト用ベンドキャップを用いた換気装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct bend cap and a ventilation device using the duct bend cap.
【０００２】[0002]
【従来の技術】従来、鉄筋コンクリート製住宅等の気密
住宅においては、台所等の汚れた空気を排気して換気す
る換気装置が設けられており、その１例として図５に示
すような構造がある。2. Description of the Related Art Conventionally, in an airtight house such as a reinforced concrete house, there is provided a ventilator for exhausting and ventilating dirty air in a kitchen or the like. One example thereof is a structure shown in FIG. .
【０００３】図５において、１は鉄筋コンクリート製の
建物の外壁、２はその上階床板、４は天井板、５は壁板
を示す。６は上階床板２と天井板４間に形成された天井
裏空間、７は外壁１に形成したダクト用穴である。In FIG. 5, 1 is an outer wall of a building made of reinforced concrete, 2 is an upper floor plate, 4 is a ceiling plate, and 5 is a wall plate. 6 is a space behind the ceiling formed between the upper floor 2 and the ceiling plate 4, and 7 is a duct hole formed in the outer wall 1.
【０００４】図５の左半分において、８は台所９に設置
したガスレンジ、１０はそのバーナを示す。１１は上記
ガスレンジ８の上部に位置して設置した換気扇でその下
端の吸気口は台所９の部屋に開口し、本体部は天井裏空
間６に収納されている。換気扇１１の排気口１２内には
逆風防止用シャッタ３０が開閉可能に設けられている。In the left half of FIG. 5, 8 is a gas range installed in the kitchen 9, and 10 is its burner. Reference numeral 11 denotes a ventilation fan installed at the upper part of the gas range 8, the intake port at the lower end of which opens to the room of the kitchen 9, and the main body is housed in the space 6 above the ceiling. A back wind preventing shutter 30 is provided in the exhaust port 12 of the ventilation fan 11 so as to be opened and closed.
【０００５】１３は天井裏空間６内に配管されたダクト
で、一端が上記換気扇１１の排気口１２に連結され、他
端が上記外壁１に形成したダクト用穴７に挿通されてお
り、換気扇１１の稼働により台所９内の空気を吸引し
て、ダクト１３を通じ建物外へ排出するようになってい
る。A duct 13 is provided in the space 6 above the ceiling. One end of the duct is connected to the exhaust port 12 of the ventilation fan 11, and the other end is inserted into the duct hole 7 formed in the outer wall 1. The air in the kitchen 9 is sucked by the operation of 11 and is discharged to the outside of the building through the duct 13.
【０００６】１４は上記ダクト用穴７部に設置したベン
ドキャップで、その裏側に突設した管部１５を上記ダク
ト１３の他端（排気側端）に嵌合し、表側部にガラリ１
６を設けている。Reference numeral 14 is a bend cap installed in the hole 7 for the duct. A pipe portion 15 projecting from the back side of the bend cap is fitted to the other end (exhaust side end) of the duct 13, and the front side portion has a jar 1
6 is provided.
【０００７】１７はガス管等の配管用空間で、通常、図
５のように上記天井裏空間６とガスレンジ８のガス管接
続部穴８′とに連通している。図５の右半分において、
９ａは台所以外の部屋、例えば浴室やトイレ等の他の部
屋で、該部屋９ａにも上記と同様の換気扇１１ａが備え
られ、ダクト１３ａ、ベンドキャップ１４ａで換気が行
なわれるようになっている。この換気扇１１ａ側の部
材、部分は上記台所９の換気扇１１側の部材、部分と同
一であるので、同一符号にａを付してその説明は省略す
る。Reference numeral 17 denotes a space for piping such as a gas pipe, which normally communicates with the space 6 behind the ceiling and the gas pipe connecting hole 8'of the gas range 8 as shown in FIG. In the right half of Figure 5,
Reference numeral 9a denotes a room other than the kitchen, for example, another room such as a bathroom and a toilet. The room 9a is also provided with the same ventilation fan 11a as described above so that ventilation is performed by the duct 13a and the bend cap 14a. Since the members and parts on the side of the ventilation fan 11a are the same as the members and parts on the side of the ventilation fan 11 of the kitchen 9, the same reference numerals are given with a and the description thereof is omitted.
【０００８】[0008]
【発明が解決しようとする課題】上記従来構造のように
ベンドキャップ１４、１４ａが常時開口状態（通風可能
状態）の構造のものにおいては、換気扇１１、１１ａの
稼働時には、その換気扇１１、１１ａからの静圧風によ
って、ベンドキャップ１４、１４ａからの外風による侵
入風は阻止されるが、換気扇１１，１１ａの不使用時に
は次のような問題が生じる。In the structure in which the bend caps 14 and 14a are always open (the ventilation is possible) like the above-mentioned conventional structure, when the ventilation fans 11 and 11a are in operation, The static pressure air prevents the invasion of the outside air from the bend caps 14 and 14a, but the following problems occur when the ventilation fans 11 and 11a are not used.
【０００９】換気扇１１、１１ａの不使用時は、図５に
示すように、その内蔵された逆風侵入防止シャッター３
０、３０ａが閉状態である。そのため、外風によりベン
ドキャップ１４、１４ａからダクト１３、１３ａ内に侵
入した逆風Ａはダクト１３、１３ａ内の空気圧を上昇さ
せる。このとき、ダクト１３、１３ａ相互の接合部１
８、１８ａ、更にはダクト１３、１３ａと換気扇１１、
１１ａとの接合部１９、１９ａは、本来テーピング等に
より、密封されているが、その密封工事が不完全であっ
たり、経年により密封が損なわれ、かつ予想外の悪条件
が重なった場合には、上記の接合部の隙間から空気が天
井裏空間６内に矢印Ｂのように吹き出す。このような吹
き出しが生じると、外気が湿度の高い場合において
は、、その水分が天井裏空間６を形成する面等に付着し
て図５の２９で示すような結露を生じ、気密住宅では蒸
発する条件が乏しいことから、かび等が発生し、細菌や
ダニ等の温床となる。When the ventilation fans 11 and 11a are not used, as shown in FIG.
0 and 30a are in the closed state. Therefore, the backwind A entering the ducts 13 and 13a from the bend caps 14 and 14a by the external wind increases the air pressure in the ducts 13 and 13a. At this time, the joint 1 between the ducts 13 and 13a
8, 18a, the ducts 13, 13a and the ventilation fan 11,
The joints 19 and 19a with 11a are originally sealed by taping or the like, but if the sealing work is incomplete, the sealing is impaired over time, and unexpected adverse conditions overlap. Air is blown out into the space 6 behind the ceiling from the gap of the above-mentioned joining portion as indicated by an arrow B. When such a blowout occurs, when the outside air has a high humidity, the moisture adheres to the surface forming the ceiling space 6 or the like to cause dew condensation as shown by 29 in FIG. 5 and evaporates in an airtight house. Since the conditions to be applied are poor, molds and the like are generated and become a hotbed for bacteria and mites.
【００１０】また、図６に示すように浴室やトイレ等の
他の部屋９ａの換気扇１１ａが停止し、その逆風防止用
シャッタ３０ａが閉じられている状態において、台所９
の換気扇１１を稼働すると、その逆風防止シャッタ３０
が開き、矢印Ｃのように排気されることにより、台所９
内の空気が吸い出され、その台所９内が負圧となる。す
ると、ガス管接続穴８′及び配管用空間１７を通じて天
井裏空間６内も負圧になる。このとき、他の部屋９ａの
換気扇１１ａにおけるダクト１３ａとダクト１３ａ相互
の接合部１８ａ、更にはダクト１３ａと換気扇１１ａと
の接合部１９ａは、本来テーピング等により密封されて
いるが、その密封工事が不完全であったり、経年により
密封が損なわれ、かつ予想外の悪条件が重なった場合に
は、その接合部１８ａ、１９ａに隙間が生じ、上記天井
裏空間６内が負圧であることから多量の空気（外気）が
矢印Ａのように吸い込まれ、上記の接合部１８ａ、１９
ａの隙間から天井裏空間６内に矢印Ｂのように吹き出す
場合がある。そして、この吹き出した空気は、台所９内
の負圧により天井裏空間６から矢印Ｄで示すように配管
用空間１７及び、ガス管接続部穴８′を通じてガスレン
ジ８内に侵入し、バーナ１０部の隙間から矢印Ｅのよう
に吹き出す。そのため、この吹き出しによってバーナ１
０の火が立消えする場合もある。Further, as shown in FIG. 6, when the ventilation fan 11a of another room 9a such as a bathroom or a toilet is stopped and the back wind preventing shutter 30a is closed, the kitchen 9 is closed.
When the ventilation fan 11 of the
Opens and is exhausted as shown by arrow C,
The air inside is sucked out, and the inside of the kitchen 9 becomes negative pressure. Then, the inside of the ceiling space 6 becomes negative pressure through the gas pipe connection hole 8 ′ and the piping space 17. At this time, the duct 13a and the joint portion 18a between the ducts 13a and the joint portion 19a between the duct 13a and the ventilation fan 11a in the ventilation fan 11a of the other room 9a are originally sealed by taping or the like. If it is incomplete or if the sealing is damaged due to aging and unexpected adverse conditions overlap, a gap is created at the joints 18a and 19a, and the inside space 6 is negative pressure. A large amount of air (outside air) is sucked in as shown by an arrow A, and the above-mentioned joining portions 18a, 19
In some cases, air may blow out from the gap a into the space 6 behind the ceiling. Then, the blown air enters the gas range 8 through the space 17 for piping and the gas pipe connecting hole 8 ′ from the space 6 above the ceiling due to the negative pressure in the kitchen 9 and the burner 10 Blow out from the gap between the parts as shown by arrow E. Therefore, the burner 1
In some cases, a zero fire may go out.
【００１１】そこで本発明は、換気扇の稼働時には開口
し、換気扇の不使用時には閉口するシャッタを付設した
ベンドキャップ及びそのベンドキャップを用いた換気装
置を提供し、上記各問題点を解消することを目的とるも
のである。Therefore, the present invention provides a bend cap provided with a shutter that opens when the ventilator is in operation and closes when the ventilator is not in use, and a ventilator using the bend cap to solve the above problems. It is the purpose.
【００１２】[0012]
【課題を解決するための手段】本発明は上記の課題を解
決するために、請求項１記載の発明は、本体に形成され
た通気路（２２）の前部に、該通気路（２２）を開閉す
るシャッタ（２４）を、常時は閉状態に保ち、通気路
（２２）内に所定の排気圧が作用した場合にはその排気
圧で開作動するように開閉可能に備えたことを特徴とす
るダクト用ベンドキャップである。In order to solve the above-mentioned problems, the present invention according to claim 1 provides a ventilation passage (22) formed in a main body at the front portion thereof. A shutter (24) for opening and closing is provided so that it can be opened and closed so that when the exhaust pressure in the ventilation passage (22) acts, the shutter (24) is normally closed. It is a bend cap for a duct.
【００１３】請求項２記載の発明は、台所（９）の換気
扇（１１）におけるダクト（１３）の排気側端にダクト
用ベントキャップ（２０）を付設し、台所以外の他の部
屋（９ａ）の換気扇（１１ａ）におけるダクト（１３
ａ）の排気側端にダクト用ベンドキャップ（２０ａ）を
付設し、上記両ダクト（１３）、（１３ａ）を天井裏空
間（６）に設置し、台所（９）のガスレンジ（８）部と
天井裏空間（６）とが連通されている換気装置におい
て、上記ダクト用ベンドキャップ（２０）（２０ａ）
が、その本体に通気路（２２、２２ａ）を形成するとと
もに該通気路（２２、２２ａ）の前部に、常時は閉状態
に保ち、通気路（２２、２２ａ）内に所定の排気圧が作
用した場合にはその排気圧で開作動するシャッタ（２
４、２４ａ）を備えて構成されていることを特徴とする
ダクト用ベンドキャップを用いた換気装置である。According to the second aspect of the invention, a duct vent cap (20) is attached to the exhaust side end of the duct (13) in the ventilation fan (11) of the kitchen (9), and the room (9a) other than the kitchen is attached. The duct (13) in the ventilation fan (11a) of
A duct bend cap (20a) is attached to the exhaust side end of a), both the ducts (13) and (13a) are installed in the space above the ceiling (6), and a gas range (8) part of the kitchen (9) is installed. In the ventilator in which the above space and the space above the ceiling (6) are communicated with each other, the bend caps (20) (20a) for the duct
However, the air passages (22, 22a) are formed in the main body, and at the front of the air passages (22, 22a), the air passages (22, 22a) are always kept closed, and a predetermined exhaust pressure is maintained in the air passages (22, 22a). The shutter (2
4, 24a), and is a ventilation device using a bend cap for a duct.
【００１４】[0014]
【作用】請求項１記載の発明においては、図２に示すよ
うに、通気路（２２）内にＦ方向への排気流が作用し
て、シャッタ（２４）に所定の排気圧が作用すると、シ
ャッタ（２４）は鎖線の如く押し開かれて通気路（２
２）を開口する。また、上記の排気圧が作用しない場合
には、シャッタ（２４）はその自重によって自然に図の
実線のように垂下し、通気路（２２）を閉塞する。According to the first aspect of the invention, as shown in FIG. 2, when the exhaust flow in the F direction acts in the ventilation passage (22) and a predetermined exhaust pressure acts on the shutter (24), The shutter (24) is pushed open like a chain line to open the air passage (2
Open 2). Further, when the exhaust pressure does not act, the shutter (24) naturally hangs down due to its own weight as shown by the solid line in the figure, and closes the air passage (22).
【００１５】請求項２記載の発明においては、図３に示
すように、台所（９）の換気扇（１１）及びその他の部
屋（９ａ）の換気扇（１１ａ）が不使用時の場合には、
夫々の換気扇（１１）、（１１ａ）のダクト（１３）、
（１３ａ）に付設されたダクト用ベンドキャップ（２
０）、（２０ａ）のシャッタ（２４）（２４ａ）が閉
じ、外気がダクト（１３）（１３ａ）内に流入するのを
防止する。そのため、仮りに、ダクト部等に隙間があっ
ても外気が天井裏空間（６）等に侵入せず、多湿の外気
の侵入による結露を防止できる。In the second aspect of the invention, as shown in FIG. 3, when the ventilation fan (11) of the kitchen (9) and the ventilation fan (11a) of the other room (9a) are not used,
The respective ventilation fans (11), ducts (13) of (11a),
Bend cap for duct (2 attached to (13a)
The shutters (24) and (24a) of 0) and (20a) are closed to prevent outside air from flowing into the ducts (13) and (13a). Therefore, even if there is a gap in the duct portion or the like, the outside air does not enter the space above the ceiling (6) and the like, and it is possible to prevent dew condensation due to the entry of the humid outside air.
【００１６】また、図４に示すように、他の部屋（９
ａ）の換気扇（１１ａ）の不使用状態において、台所
（９）の換気扇（１１）を稼働すると、台所（９）内の
空気は換気扇（１１）によって吸い出され、台所（９）
内は負圧になる。この負圧は台所（９）のガスレンジ
（８）におけるバーナ（１０）部の隙間から通気部
（８′１７）を通じて天井裏空間（６）内に作用する。
このとき、他の部屋（９ａ）の換気扇（１１ａ）におけ
るダクト用ベンドキャップ（２０ａ）のシャッタ（２４
ａ）は閉じているので、仮りにダクト（１３ａ）部に隙
間があっても上記天井裏空間（６）に作用した負圧によ
って外気が天井裏空間（６）内に吸引されることが防止
される。そのため、外気が天井裏空間（６）を通じてガ
スレンジ（８）のバーナ（１０）における隙間から吹き
出すことが防止され、バーナ（１０）の火の立消えが防
止される。Further, as shown in FIG. 4, another room (9
When the ventilation fan (11) of the kitchen (9) is operated when the ventilation fan (11a) of a) is not used, the air in the kitchen (9) is sucked by the ventilation fan (11), and the kitchen (9) is discharged.
The inside becomes negative pressure. This negative pressure acts from the gap of the burner (10) in the gas range (8) of the kitchen (9) into the space above the ceiling (6) through the ventilation part (8'17).
At this time, the shutter (24) of the duct bend cap (20a) in the ventilation fan (11a) of the other room (9a).
Since a) is closed, even if there is a gap in the duct (13a), it is possible to prevent outside air from being sucked into the ceiling space (6) by the negative pressure acting on the ceiling space (6). To be done. Therefore, outside air is prevented from blowing out from the gap in the burner (10) of the gas range (8) through the space above the ceiling (6), and the extinction of the fire of the burner (10) is prevented.
【００１７】[0017]
【実施例】図１は本発明のベンドキャップの実施例を示
す正面図で、図２は図１におけるＸ−Ｘ線断面図であ
る。1 is a front view showing an embodiment of a bend cap of the present invention, and FIG. 2 is a sectional view taken along line XX in FIG.
【００１８】本実施例におけるベンドキャップ２０にお
いて、２１は前後に貫通する通気路２２を有する排気用
筒部で、その前端外周には取付用鍔部２３が一体形成さ
れている。２４はシャッタで、上記通気路２２の前端開
口部の内径より大径に形成されている。該シャッタ２４
は、その上部において、上記取付用鍔部２３の外面に固
着した取付片２５と水平ヒンジ２６で連結し、該水平ヒ
ンジ２６を中心として開閉可能に備えられており、常時
はその自重により図２の実線の垂下状態におかれ、矢印
Ｆ方向へ所定の排気が発生した場合はその排気圧により
鎖線の如く開口するように設定されている。尚、上記排
気用筒部２１、取付用鍔部２３及びシャッタ２４はステ
ンレス等の金属で形成されている。In the bend cap 20 of this embodiment, reference numeral 21 denotes an exhaust tube portion having an air passage 22 penetrating in the front-rear direction, and a mounting collar portion 23 is integrally formed on the outer periphery of the front end thereof. A shutter 24 has a diameter larger than the inner diameter of the front end opening of the air passage 22. The shutter 24
Is connected to a mounting piece 25 fixed to the outer surface of the mounting collar portion 23 by a horizontal hinge 26 at the upper portion thereof, and is openable and closable around the horizontal hinge 26. When the predetermined exhaust gas is generated in the arrow F direction when the solid line is drooping, the exhaust pressure is set to open like a chain line. The exhaust cylinder portion 21, the mounting flange portion 23, and the shutter 24 are made of metal such as stainless steel.
【００１９】２７は弾性材料からなる密閉用部材で、上
記シャッタ２４の後部に、水平ヒンジ２６部を除く全周
に亘って固着されており、シャッタ２４の垂下状態にお
いて、該密閉用部材２７の後面が上記取付用鍔部２３の
前面に当接して、上記通気路２２の前端開口部の密封度
を高めるようになっている。Reference numeral 27 denotes a sealing member made of an elastic material, which is fixed to the rear portion of the shutter 24 over the entire circumference except for the horizontal hinge 26, and when the shutter 24 is in a hanging state, the sealing member 27 is closed. The rear surface is in contact with the front surface of the mounting collar portion 23 to enhance the sealing degree of the front end opening portion of the ventilation path 22.
【００２０】図３は上記本発明のベンドキャップ２０
を、台所９の換気扇１１のダクト１３と、台所以外の他
の部屋９ａの換気扇１１ａのダクト１３ａに付設した実
施例で、請求項２に係る発明の実施例を示す。FIG. 3 shows the bend cap 20 of the present invention.
An embodiment of the invention according to claim 2 will be described with an embodiment in which the above is attached to the duct 13 of the ventilation fan 11 of the kitchen 9 and the duct 13a of the ventilation fan 11a of the room 9a other than the kitchen.
【００２１】この図３の左半分で示す台所９側の換気装
置において、上記のベンドキャップ２０は、その排気用
筒部２１を建物の外壁１に形成したダクト用穴７部に挿
通し、取付用鍔部２３を外壁１の外面に適宜手段により
固着してその外周をコーキング２８で密封して備えられ
る。In the ventilator on the kitchen 9 side shown in the left half of FIG. 3, the bend cap 20 is attached by inserting the exhaust tube portion 21 into the duct hole 7 formed in the outer wall 1 of the building. The flange 23 is fixed to the outer surface of the outer wall 1 by an appropriate means, and the outer periphery thereof is sealed by caulking 28.
【００２２】そして、排気用筒部２１の後部に上記図５
で説明したダクト１３の端部が嵌合される。また、上記
ベンドキャップ２０以外の構造は上記図５で示した従来
構造と同一である。そのため、上記図５で説明した部
材、部分と同一部材、部分には上記と同一符号を付して
その構造の説明は省略する。Then, the above-mentioned FIG.
The end portion of the duct 13 described in 1 is fitted. The structure other than the bend cap 20 is the same as the conventional structure shown in FIG. Therefore, the same members and portions as the members and portions described in FIG. 5 are given the same reference numerals and the description of the structure thereof is omitted.
【００２３】また、図３の右半分は台所９以外の他の部
屋９ａ側を示す。この他の部屋９ａ側の換気装置も上記
台所９側の換気装置と同一に形成され、そのダクト１３
ａの外部に上記のベンドキャップ２０と同一のベンドキ
ャップ２０ａが上記と同様な構造により付設されてい
る。この他の部屋９ａ側の換気装置の部材、部分には上
記台所９の換気装置の部材、部分と同一であるため、同
一部材、部分には、台所９側の符号にａを付してその構
造の説明は省略する。The right half of FIG. 3 shows the room 9a other than the kitchen 9. The other ventilation devices on the room 9a side are also formed in the same manner as the ventilation device on the kitchen 9 side, and the duct 13
The same bend cap 20a as the bend cap 20 is attached to the outside of a by the same structure as above. Since the other members and parts of the ventilation device on the room 9a side are the same as the other members and parts of the ventilation device of the kitchen 9, the same members and parts are denoted by a on the reference numeral of the kitchen 9 side. The description of the structure is omitted.
【００２４】次に本発明の換気装置の作用について説明
する。図３に示すように、台所９及び他の部屋９ａの換
気扇１１、１１ａの不使用状態においては、ベンドキャ
ップ２０、２０ａのシャッタ２４、２４ａが自重で実線
の如く垂下してその状態が保持されるとともにその自重
及び外圧によって、取付用鍔部２３の前面に当接し、通
気路２２、２２ａを閉塞する。このとき、弾性材料から
密閉用部材２７により、その密閉度が高くなる。このよ
うな閉塞状態においては、外風がベンドキャップ２０、
２０ａ部からダクト１３内へ侵入しない。Next, the operation of the ventilation device of the present invention will be described. As shown in FIG. 3, when the ventilation fans 11 and 11a in the kitchen 9 and the other room 9a are not used, the shutters 24 and 24a of the bend caps 20 and 20a are hung by their own weights and are maintained in that state. At the same time, due to its own weight and external pressure, it comes into contact with the front surface of the mounting collar portion 23 and closes the ventilation passages 22 and 22a. At this time, the degree of sealing is increased by the sealing member 27 made of an elastic material. In such a closed state, the outside wind blows the bend cap 20,
It does not enter the duct 13 from the portion 20a.
【００２５】そのため、接合部１８、１８ａ、１９、１
９ａに隙間があっても、外気は天井裏空間６内に侵入せ
ず、天井裏空間６等において結露が発生することを防止
でき、更にはかびの発生防止やダニの温床となることも
防止できる。また、台所９又は他の部屋９ａの夫々の換
気扇１１、１１ａを稼働すると、各逆風防止用シャッタ
３０、３０ａが開き、台所９又は他の部屋９ａ内の空気
が夫々吸引されてダクト１３、１３ａ内に送られ、その
ダクト１３、１３ａ内における排気圧により、夫々のベ
ンドキャップ２０、２０ａのシャッタ２４、２４ａが開
口する。そのため、台所９又は他の部屋９ａ内の汚れた
空気等を屋外へ排出して換気が行なえる。Therefore, the joints 18, 18a, 19, 1
Even if there is a gap in 9a, the outside air does not enter the space 6 above the ceiling, and it is possible to prevent dew condensation from occurring in the space 6 above the ceiling, and also to prevent the formation of mold and a hotbed for mites. it can. Further, when the respective ventilation fans 11, 11a of the kitchen 9 or the other room 9a are operated, the respective back wind prevention shutters 30, 30a are opened, and the air in the kitchen 9 or the other room 9a is sucked and the ducts 13, 13a are drawn. Due to the exhaust pressure in the ducts 13 and 13a, the shutters 24 and 24a of the bend caps 20 and 20a are opened. Therefore, dirty air or the like in the kitchen 9 or the other room 9a can be discharged to the outside for ventilation.
【００２６】次に図４において、台所以外の他の部屋９
ａにおける換気扇１１ａの不使用（停止）状態におい
て、台所９の換気扇１１を稼働した場合について説明す
る。他の部屋９ａの換気扇１１ａの停止状態で台所９の
換気扇１１を稼働すると、台所９内は負圧になり、ガス
レンジ８部及び配管用空間１７を通じて天井裏空間６内
も負圧になる。このとき、他の部屋９ａの換気扇１１ａ
のダクト１３ａに備えられたベンドキャップ２０ａのシ
ャッタ２４ａが閉じているので、仮りにダクト１３ａ相
互の接合部１８ａやダクト１３ａと換気扇１１ａとの接
合部１９ａの密封工事が不完全であったり、経年により
密封が損なわれた場合であっても、外気は天井裏空間６
内に吸引されない。そのため、外気が配管用空間１７、
ガス管接続穴８′を通じてバーナ１０部へ吸引されてバ
ーナ１０部から吹き出すことがなく、上記従来のような
外気の吸引によるバーナ１０の火の立消えを防止でき
る。Next, referring to FIG. 4, a room 9 other than the kitchen
A case where the ventilation fan 11 of the kitchen 9 is operated in a non-use (stop) state of the ventilation fan 11a in a will be described. If the ventilation fan 11 of the kitchen 9 is operated while the ventilation fan 11a of the other room 9a is stopped, the inside of the kitchen 9 becomes a negative pressure, and the inside of the ceiling space 6 also becomes a negative pressure through the gas range 8 and the piping space 17. At this time, the ventilation fan 11a of the other room 9a
Since the shutter 24a of the bend cap 20a provided on the duct 13a of the above is closed, the joint work 18a between the ducts 13a and the joint 19a between the duct 13a and the ventilation fan 11a may be incompletely sealed or aged. Even if the sealing is damaged by the
Not sucked in. Therefore, the outside air is the piping space 17,
The burner 10 is prevented from being blown out through the gas pipe connecting hole 8'and blown out from the burner 10 portion, which prevents the burner 10 from extinguishing the fire due to the suction of the outside air as in the conventional case.
【００２７】また、外気の侵入を防止できることは、上
記と同様に結露の発生を防止でき、更にはかびの発生防
止やダニの温床となることも防止できる。尚、上記実施
例のベンドキャップ２０、２０ａには、図５に示すよう
なガラリ１６を付設していないが、必要に応じてそのよ
うなガラリを付設してもよく、また一般に使用されてい
る防火ダンパーを付設してもよい。In addition, the ability to prevent the invasion of the outside air can prevent the occurrence of dew condensation as in the above, and can also prevent the generation of mold and the hotbed of mites. Incidentally, the bend caps 20 and 20a of the above-mentioned embodiment are not provided with the louver 16 as shown in FIG. 5, but such a louver may be provided if necessary, and are commonly used. A fire damper may be attached.
【００２８】[0028]
【発明の効果】以上のようであるから請求項１記載のベ
ンドキャップを換気装置のダクトに付設することによ
り、外気の天井裏空間等への吹き出しを防止して、結露
の発生を防止し、更には結露によるかびの発生やダニの
温床となることも防止できる。As described above, by attaching the bend cap according to claim 1 to the duct of the ventilation device, it is possible to prevent the outside air from blowing into the space above the ceiling and to prevent the occurrence of dew condensation. Furthermore, it is possible to prevent the formation of mold and the hotbed of mites due to dew condensation.
【００２９】請求項２記載の換気装置においては更に、
台所のガスレンジにおけるバーナの火の立消えを防止で
きる。In the ventilation device according to claim 2, further,
It is possible to prevent the burner from extinguishing the fire in the kitchen stove.
【図１】 本発明のベンドキャップを示す正面図。FIG. 1 is a front view showing a bend cap of the present invention.
【図２】 図１におけるＸ−Ｘ線断面図。FIG. 2 is a sectional view taken along line XX in FIG.
【図３】 本発明のベンドキャップを付設した換気装置
の１例を示す断面図。FIG. 3 is a cross-sectional view showing an example of a ventilation device provided with a bend cap of the present invention.
【図４】 図３における換気装置において、台所側の換
気扇を稼働し、他の部屋の換気扇を停止した状態の断面
図。FIG. 4 is a cross-sectional view of the ventilation device in FIG. 3 in a state in which the ventilation fan on the kitchen side is operated and the ventilation fans in other rooms are stopped.
【図５】 従来のベンドキャップを付設した換気装置の
１例を示す断面図。FIG. 5 is a cross-sectional view showing an example of a conventional ventilation device provided with a bend cap.
【図６】 図５における換気装置において、台所側の換
気扇を稼働し、他の部屋の換気扇を停止した状態の断面
図。FIG. 6 is a cross-sectional view of the ventilation device in FIG. 5 in a state in which the kitchen side ventilation fan is operated and the ventilation fans in other rooms are stopped.
６…天井裏空間 ８…ガスレンジ ９…台所
９ａ…他の部屋 １１、１１ａ…換気扇 １３、１３ａ…ダクト ２０、２０ａ…ベンドキャップ ２１，２１ａ…排
気用筒部 ２２、２２ａ…通気路 ２４、２４ａ…シャッタ ２６、２６ａ…水平ヒンジ6 ... Space above the ceiling 8 ... Gas range 9 ... Kitchen 9a ... Other rooms 11, 11a ... Ventilation fans 13, 13a ... Ducts 20, 20a ... Bend caps 21, 21a ... Exhaust cylinders 22, 22a ... Ventilation passages 24, 24a ... Shutters 26, 26a ... Horizontal hinge
Claims (2)
に、該通気路（２２）を開閉するシャッタ（２４）を、
常時は閉状態に保ち、通気路（２２）内に所定の排気圧
が作用した場合にはその排気圧で開作動するように開閉
可能に備えたことを特徴とするダクト用ベンドキャッ
プ。1. A shutter (24) for opening and closing the ventilation passage (22) is provided at a front portion of the ventilation passage (22) formed in the main body.
A bend cap for a duct, which is kept closed at all times and is openable and closable so as to be opened by a predetermined exhaust pressure in the ventilation passage (22).
クト（１３）の排気側端にダクト用ベントキャップ（２
０）を付設し、台所以外の他の部屋（９ａ）の換気扇
（１１ａ）におけるダクト（１３ａ）の排気側端にダク
ト用ベンドキャップ（２０ａ）を付設し、上記両ダクト
（１３）、（１３ａ）を天井裏空間（６）に設置し、台
所（９）のガスレンジ（８）部と天井裏空間（６）とが
連通されている換気装置において、上記ダクト用ベンド
キャップ（２０）（２０ａ）が、その本体に通気路（２
２、２２ａ）を形成するとともに該通気路（２２、２２
ａ）の前部に、常時は閉状態に保ち、通気路（２２、２
２ａ）内に所定の排気圧が作用した場合にはその排気圧
で開作動するシャッタ（２４、２４ａ）を備えて構成さ
れていることを特徴とするダクト用ベンドキャップを備
えた換気装置。2. A duct vent cap (2) at the exhaust side end of a duct (13) in a ventilation fan (11) of a kitchen (9).
0) is attached, and a duct bend cap (20a) is attached to the exhaust side end of the duct (13a) in the ventilation fan (11a) of the room (9a) other than the kitchen, and both ducts (13), (13a) ) Is installed in the above-ceiling space (6), and the gas range (8) of the kitchen (9) and the above-ceiling space (6) are communicated with each other. ) Has a ventilation passage (2
2, 22a) and the ventilation passages (22, 22a).
In the front part of a), keep it normally closed and set the ventilation passages (22, 2).
2a) A ventilator provided with a duct bend cap, characterized in that it is provided with a shutter (24, 24a) that opens when a predetermined exhaust pressure acts on the exhaust pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7013296A JPH08200768A (en) | 1995-01-31 | 1995-01-31 | Bend cap for duct and ventilating device employing the bend cap for duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7013296A JPH08200768A (en) | 1995-01-31 | 1995-01-31 | Bend cap for duct and ventilating device employing the bend cap for duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08200768A true JPH08200768A (en) | 1996-08-06 |
Family
ID=11829234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7013296A Pending JPH08200768A (en) | 1995-01-31 | 1995-01-31 | Bend cap for duct and ventilating device employing the bend cap for duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08200768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100941449B1 (en) * | 2008-05-07 | 2010-02-11 | 최창호 | Natural Vent with Filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04110543A (en) * | 1990-08-29 | 1992-04-13 | Toyoda Gosei Co Ltd | Ventilation device |
| JPH04208336A (en) * | 1990-11-30 | 1992-07-30 | Matsushita Seiko Co Ltd | Ventilation fan for living room |
-
1995
- 1995-01-31 JP JP7013296A patent/JPH08200768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04110543A (en) * | 1990-08-29 | 1992-04-13 | Toyoda Gosei Co Ltd | Ventilation device |
| JPH04208336A (en) * | 1990-11-30 | 1992-07-30 | Matsushita Seiko Co Ltd | Ventilation fan for living room |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100941449B1 (en) * | 2008-05-07 | 2010-02-11 | 최창호 | Natural Vent with Filter |
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