JP3268129B2 - Ceiling ventilation structure - Google Patents
Ceiling ventilation structureInfo
- Publication number
- JP3268129B2 JP3268129B2 JP16186894A JP16186894A JP3268129B2 JP 3268129 B2 JP3268129 B2 JP 3268129B2 JP 16186894 A JP16186894 A JP 16186894A JP 16186894 A JP16186894 A JP 16186894A JP 3268129 B2 JP3268129 B2 JP 3268129B2
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- ceiling
- air passage
- fitting
- shaped
- 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.)
- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本発明は建物の小屋裏等の天井の
換気を目的とした換気構造に係り、特に火災時に天井に
設けた換気用空気通路を自動的に遮蔽することが出来る
天井の換気構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation structure for the purpose of ventilating a ceiling such as the back of a hut of a building, and more particularly to a ceiling structure capable of automatically shielding a ventilation air passage provided in the ceiling in the event of a fire. It concerns the ventilation structure.
【０００２】[0002]
【従来の技術】従来、この種の天井より小屋裏換気を行
う構造であって、かつ防火を必要とする場合には、軒天
井部にダンパー付き換気口を取り付けて構成するのが一
般であった。2. Description of the Related Art Conventionally, in the case of a structure in which attic ventilation is performed from a ceiling of this type and where fire protection is required, a ventilation opening with a damper is generally mounted on the eave ceiling. Was.
【０００３】[0003]
【発明が解決しようとする課題】然るに、前述のこのダ
ンパー付き換気口は重量が重いため、取り付け部分の下
地組立や換気口の取り付けに多くの時間や費用を要して
いた。また、機械的な開閉機構であるために火災時、有
効に作動させるためには、保守・点検を必要とする等の
問題もあった。However, since the above-described ventilation port with a damper is heavy, much time and money are required for assembling the base of the mounting portion and mounting the ventilation port. In addition, because of the mechanical opening / closing mechanism, there is a problem that maintenance and inspection are required for effective operation in a fire.
【０００４】本件特許出願人は、前述の従来のダンパー
付き換気口の欠点を改善するために、天井囲り縁に設け
られる換気用空気通路を利用し、この換気用空気通路内
に、熱によって膨張する不燃性体積膨張材を内蔵させ、
火災時の加熱温で不燃性体積膨張材を膨張させることに
よって、換気用空気通路内を閉鎖させる構造の天井の換
気構造を開発し、特許出願している（例えば、特願平４
ー２４７１５４号、同平４ー２４７１５５号等）。[0004] In order to improve the above-mentioned drawbacks of the conventional ventilated vents with a damper, the present applicant utilizes a ventilating air passage provided in a ceiling surrounding edge, and heat is generated in the ventilating air passage by heat. Incorporating a non-combustible volume expansion material that expands,
A ceiling ventilation structure that closes the ventilation air passage by expanding the incombustible volume expansion material at the heating temperature at the time of fire has been developed and a patent application has been filed.
No. 247154 and No. 4-247155).
【０００５】処で、前述の本件特許出願人が開発した天
井の換気構造は、製造コストが安価で、火災時には有効
であるが、換気用空気通路を設置する場所が、天井の周
り縁のみに限定される問題があった。かつ、天井板と天
井板支持金具との間に換気用空気通路を形成し、更に、
このように形成された換気用空気通路内に不燃性体積膨
張材を取り付けなければならず、作業が煩雑である問題
があった。[0005] The ceiling ventilation structure developed by the present applicant is inexpensive to manufacture and is effective in the event of a fire. However, the ventilation air passage is installed only at the peripheral edge of the ceiling. There were limited issues. And, a ventilation air passage is formed between the ceiling plate and the ceiling plate support bracket, and further,
A non-combustible volume expansion material must be installed in the ventilation air passage formed in this manner, and there is a problem that the operation is complicated.
【０００６】本発明に係る天井の換気構造は、前述の従
来の問題点に鑑み開発された全く新規な技術であって、
特に天井裏に連通する換気用空気通路に嵌着された換気
金具内に不燃性体積膨張材を内蔵させ、これによって、
火災時に加熱温で不燃性体積膨張材を膨張させて、換気
金具内の通路を閉鎖し得るようにした全く新しい天井の
換気構造の技術を提供するものである。[0006] The ceiling ventilation structure according to the present invention is a completely new technology developed in view of the aforementioned conventional problems,
In particular, a non-combustible volume expansion material is incorporated in a ventilation fitting fitted to a ventilation air passage communicating with the ceiling, thereby,
It is an object of the present invention to provide a completely new ceiling ventilation technology capable of closing a passage in a ventilation fitting by expanding a nonflammable volume expansion material at a heated temperature in a fire.
【０００７】[0007]
【課題を解決するための手段】本発明に係る天井の換気
構造は、前述の従来の問題点を根本的に改善した技術で
あって、発明の要旨は、不燃性天井板で形成された天井
に天井裏に連通する換気用空気通路が設けられており、
底部に多数の通気孔を有しかつ両内面に不燃性体積膨張
材を有するＵ型材を上縁フランジを有するＵ型枠内に嵌
入して形成した換気金具が、前記換気用空気通路内に配
設されると共に、該上縁フランジがビスを介して天井に
固定されて構成されたことを特徴とした天井の換気構造
である。SUMMARY OF THE INVENTION A ceiling ventilation structure according to the present invention is a technique which fundamentally improves the above-mentioned conventional problems, and the gist of the invention is that a ceiling formed of a non-combustible ceiling plate is provided. There is a ventilation air passage communicating with the ceiling above the
A ventilation fitting formed by fitting a U-shaped member having a large number of ventilation holes at the bottom and having a non-combustible volume expansion material on both inner surfaces into a U-shaped frame having an upper edge flange is disposed in the ventilation air passage. And a ceiling ventilation structure wherein the upper edge flange is fixed to the ceiling via screws.
【０００８】本発明に係る天井の換気構造に於いては、
前述のように、天井に隙間を設けて天井裏に連通する換
気用空気通路を設けるようにしたので、天井板と天井板
との間或は天井板と壁側との間に隙間を設けることによ
って換気用空気通路を極めて簡単に構成することが出来
る。また、このように形成された換気用空気通路の中に
は、Ｕ型材とＵ型枠とを組合せてなるＵ型換気金具を安
定した状態で嵌入することが出来る。該Ｕ型換気金具の
底部には多数の通気孔を設けたので、加工が容易である
と共に、天井裏への通気が直接垂直方向になるのでスム
ーズであり、さらに意匠的に優れている。In the ceiling ventilation structure according to the present invention,
As described above, since a ventilation air passage communicating with the ceiling is provided by providing a gap in the ceiling, it is necessary to provide a gap between the ceiling plate and the ceiling plate or between the ceiling plate and the wall side. Thus, the ventilation air passage can be configured very simply. Further, a U-shaped ventilation fitting formed by combining a U-shaped member and a U-shaped frame can be stably fitted into the ventilation air passage thus formed. Since a large number of ventilation holes are provided at the bottom of the U-shaped ventilation bracket, the processing is easy, and the ventilation to the ceiling is directly vertical so that it is smooth and furthermore excellent in design.
【０００９】本発明に於いては、前記Ｕ型換気金具の両
側に夫々フランジを設けたので、Ｕ型換気金具を換気用
空気通路内に嵌入した際に、両側のフランジを天井板等
の上に載置することが出来、該フランジをビスを介して
天井板等に簡単に取付固定することが出来る。Ｕ型換気
金具の内側部に不燃性体積膨張材を設けたので、火災時
には多数の通気孔の近隣でこれを発泡させて、換気金具
内の通路を自動的に閉鎖させることが出来る。In the present invention, since the flanges are provided on both sides of the U-shaped ventilation fitting, when the U-shaped ventilation fitting is fitted into the ventilation air passage, the flanges on both sides are placed on a ceiling plate or the like. And the flange can be easily attached and fixed to a ceiling plate or the like via a screw. Since the non-combustible volume expansion material is provided inside the U-shaped ventilation fitting, it can be foamed in the vicinity of a large number of ventilation holes at the time of fire, and the passage in the ventilation fitting can be automatically closed.
【００１０】[0010]
【実施例】図により本発明に係る天井の換気構造につい
て、その一実施例を具体的に説明すると、図１は本発明
の天井換気構造の一例を示す断面説明図、図２は図１の
斜視説明図、図３は図１の要部の拡大図、図４は第２実
施例を示す要部の断面図、図５は第３実施例を示す要部
の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an example of a ceiling ventilation structure according to the present invention; FIG. FIG. 3 is an enlarged view of a main part of FIG. 1, FIG. 4 is a cross-sectional view of a main part showing a second embodiment, and FIG. 5 is a cross-sectional view of a main part showing a third embodiment.
【００１１】図１乃至図３に於いて、１は天井であっ
て、不燃性天井板より構成されている。この天井１の所
定位置には、天井裏に連通する換気用空気通路２が設け
られている。この換気用空気通路２は、天井板に穿設し
て形成しても、或いは隣接する天井板の相互間に隙間を
設けて形成しても良い。３は換気金具であって、該換気
用空気通路２内に嵌着し得る寸法を有している。1 to 3, reference numeral 1 denotes a ceiling, which is constituted by a nonflammable ceiling panel. At a predetermined position of the ceiling 1, a ventilation air passage 2 communicating with the space above the ceiling is provided. The ventilation air passage 2 may be formed by drilling in a ceiling plate, or may be formed by providing a gap between adjacent ceiling plates. Reference numeral 3 denotes a ventilation fitting having a size that can be fitted into the ventilation air passage 2.
【００１２】この換気金具３は、特に図３に明らかな如
く、逆Ｕ形枠４と、この逆Ｕ形枠４を両内側から支持し
得る支持アーム材５と、この支持アーム材５に嵌着し得
るカバー体６とより構成されている。前記逆Ｕ形枠４の
天面には金網７が取り付けられており、これによって虫
等が天井裏に侵入することを防止している。かつ、支持
アーム材５の上部両内側面には、熱によって膨張する不
燃性体積膨張材８が貼着されている。前記支持アーム材
５はビス９によって天井１に取付固定されている。As shown in FIG. 3, the ventilation fitting 3 has an inverted U-shaped frame 4, a support arm member 5 capable of supporting the inverted U-shaped frame 4 from both insides, and fitted to the support arm member 5. And a cover body 6 that can be put on. A wire mesh 7 is attached to the top surface of the inverted U-shaped frame 4 to prevent insects and the like from entering the space above the ceiling. Further, a non-combustible volume expansion material 8 that expands by heat is attached to both upper inner surfaces of the support arm member 5. The support arm member 5 is attached and fixed to the ceiling 1 by screws 9.
【００１３】上記実施例に於いては、逆Ｕ形枠４の天面
に金網７を取り付けて構成したが、逆Ｕ形枠４をパンチ
ングメタルで構成した場合には、その天井部に多数の通
気孔が設けられているので、金網７を不要とすることが
出来る。また、前述の逆Ｕ形枠４と支持アーム材５とは
予め一体的金具で構成することも可能である。In the above embodiment, the wire net 7 is attached to the top surface of the inverted U-shaped frame 4, but when the inverted U-shaped frame 4 is made of punching metal, a large number of Since the ventilation holes are provided, the wire mesh 7 can be eliminated. Further, the above-mentioned inverted U-shaped frame 4 and the supporting arm member 5 can be formed in advance by an integral metal fitting.
【００１４】上記実施例に使用される不燃性体積膨張材
８は、一般的に不燃性体積膨張材として使用されている
膨張性グラファイト系の防炎、防煙用シール材であっ
て、通過熱風温度が１５０℃〜１７０℃で、約１０倍に
膨張する性質を有している。この不燃性体積膨張材とし
ては、例えば、オーストリアケミー・リンツ社製の「イ
ンツメックス」や、特公昭６３ー１３２９６８号公報
（発明の名称防火組成物）、同平３ー２３５号公報（発
明の名称防火・耐火被覆マット）等に示す商品や技術が
使用される。従って、この不燃性体積膨張材８が膨張す
る際に、前記換気金具３の空気通路１０の空間を閉鎖す
ることが出来る。このグラファイト系の物質は、不燃性
を有しており、加熱温度が８５０℃になっても、燃焼或
いは溶解しない性質を有している。The non-combustible volume expanding material 8 used in the above embodiment is an expandable graphite-based flame-proof and smoke-proof sealing material generally used as a non-combustible volume expanding material. It has the property of expanding about 10 times at a temperature of 150 ° C to 170 ° C. Examples of the non-combustible volume expansion material include "Intzmex" manufactured by Austrian Chemie Linz Co., Ltd., and JP-B-63-132968 (the name of a fire-retardant composition of the invention) and JP-A-3-235 (the invention). Products and technologies shown under the name of “Fireproof / fireproof covering mat” etc. are used. Therefore, when the incombustible volume expansion material 8 expands, the space of the air passage 10 of the ventilation fitting 3 can be closed. This graphite-based substance is nonflammable and does not burn or melt even when the heating temperature reaches 850 ° C.
【００１５】上記実施例に於いては、図１乃至図３に示
す如く、換気金具３を逆Ｕ形枠４、支持アーム材５、カ
バー体６で構成しが、この換気金具３は、図４及び図５
に示すような換気金具１３、２３を使用すること出来
る。In the above embodiment, as shown in FIGS. 1 to 3, the ventilation fitting 3 is composed of an inverted U-shaped frame 4, a support arm member 5, and a cover body 6. 4 and FIG.
Can be used as shown in FIG.
【００１６】即ち、図４に於ける換気金具１３は、両上
縁にフランジ１４を設けたＵ形枠１５と、このＵ形枠１
５内に嵌入し得る底部に通気孔を有するＵ形材１６、と
を組み合わせることによって構成され、かつＵ形枠１５
のフランジ１４がビス９で天井１に固定されることによ
って取り付けられている。また、不燃性体積膨張材８
は、Ｕ形材１６の両内面に取り付けられている。前記Ｕ
形板１５とＵ型材１６とは、前述の逆Ｕ形枠４と支持ア
ーム材５との場合と同様に、一体的金具で構成すること
が出来る。That is, the ventilation fitting 13 shown in FIG. 4 includes a U-shaped frame 15 having flanges 14 on both upper edges,
And a U-shaped frame 15 having a ventilation hole at the bottom that can fit into the U-shaped frame 5.
Is fixed to the ceiling 1 with screws 9. In addition, the non-combustible volume expansion material 8
Are attached to both inner surfaces of the U-shaped member 16. The U
The shape plate 15 and the U-shaped material 16 can be constituted by an integral metal fitting as in the case of the inverted U-shaped frame 4 and the support arm material 5 described above.
【００１７】図５に於ける換気金具２３は、天井１に設
けられた換気用空気通路２内に嵌着し得る枠体２４と、
この枠体２４内に下方左右から嵌入し得る上部コ状折曲
部を有する形材２５と、これ等の枠体２４及び形材２５
の下面を被覆し得るカバー体２６とより構成されてい
る。不燃性体積膨張材８と、パンチングメタル板２７と
は、夫々前記形材２５内に取り付けられている。The ventilation fitting 23 shown in FIG. 5 includes a frame 24 that can be fitted into the ventilation air passage 2 provided in the ceiling 1,
A profile 25 having an upper U-shaped bent portion that can be fitted into the frame 24 from below and from the left and right, and the frame 24 and the profile 25
And a cover body 26 capable of covering the lower surface of the cover. The non-combustible volume expansion material 8 and the punched metal plate 27 are respectively mounted in the shape member 25.
【００１８】[0018]
【発明の効果】本発明に係る天井の換気構造に於いて
は、前述のように、天井板で形成される天井に隙間を設
けて天井裏に連通する換気用空気通路を設けるようにし
たので、天井板と天井板との間或は天井板と壁側との間
に隙間を設けることによって換気用空気通路を極めて簡
単に構成することが出来る効果を有している。また、こ
のように形成された換気用空気通路の中には、Ｕ型換気
金具を安定した状態で嵌入することが出来る。該Ｕ型換
気金具の底部には多数の通気孔を設けたので、加工が容
易であると共に、天井裏への通気が直接垂直方向になる
のでスムーズであり、さらに意匠的に優れている等の効
果も有している。As described above, in the ceiling ventilation structure according to the present invention, a gap is provided in the ceiling formed by the ceiling plate to provide a ventilation air passage communicating with the space above the ceiling. By providing a gap between the ceiling plate and the ceiling plate or between the ceiling plate and the wall side, the ventilation air passage can be formed very easily. In addition, the U-shaped ventilation fitting can be stably fitted into the ventilation air passage thus formed. Since a large number of ventilation holes are provided at the bottom of the U-shaped ventilation bracket, it is easy to process, and the ventilation to the ceiling is directly vertical so that it is smooth, and the design is excellent. It also has an effect.
【００１９】本発明に於いては、前記Ｕ型換気金具の両
側に夫々フランジを設けたので、Ｕ型換気金具を換気用
空気通路内に嵌入した際に、両側のフランジを天井板等
の上に載置することが出来、該フランジをビス等を介し
て天井板に簡単に取付固定することが出来る効果を有し
ている。Ｕ型換気金具の内側部に不燃性体積膨張材を設
けたので、火災時には多数の通気孔の近隣でこれを発泡
させて、換気金具内の通路を自動的に閉鎖させることが
出来る。In the present invention, since the flanges are provided on both sides of the U-shaped ventilation fitting, when the U-shaped ventilation fitting is fitted into the ventilation air passage, the flanges on both sides are placed on the ceiling plate or the like. And the flange can be easily attached and fixed to the ceiling plate via screws or the like. Since the incombustible volume expansion material is provided inside the U-shaped ventilation fitting, it can be foamed in the vicinity of a large number of ventilation holes at the time of fire, and the passage in the ventilation fitting can be automatically closed.
【図１】本発明の天井換気構造の一例を示す断面説明図
である。FIG. 1 is an explanatory sectional view showing an example of a ceiling ventilation structure of the present invention.
【図２】図１の斜視説明図である。FIG. 2 is an explanatory perspective view of FIG. 1;
【図３】図１の要部の拡大図である。FIG. 3 is an enlarged view of a main part of FIG. 1;
【図４】第２実施例を示す要部の断面図である。FIG. 4 is a sectional view of a main part showing a second embodiment.
【図５】第３実施例を示す要部の断面図である。FIG. 5 is a sectional view of a main part showing a third embodiment.
１ …天井 ２ …換気用空気通路 ３ …換気金具 ４ …逆Ｕ形枠 ５ …支持アーム ６ …カバー体 ７ …金網 ８ …不燃性体積膨張材 ９ …ビス １０…空気通路 １３…換気金具 １４…Ｕ形枠 １５…Ｕ形材 ２３…換気金具 ２４…枠体 ２５…形材 ２６…カバー体 DESCRIPTION OF SYMBOLS 1 ... Ceiling 2 ... Ventilation air passage 3 ... Ventilation metal fitting 4 ... Inverted U-shaped frame 5 ... Support arm 6 ... Cover body 7 ... Wire mesh 8 ... Non-combustible volume expansion material 9 ... Screw 10 ... Air passage 13 ... Ventilation metal fitting 14 ... U-shaped frame 15 ... U-shaped member 23 ... Ventilation metal fitting 24 ... Frame 25 ... Shape 26 ... Cover
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−73828（ＪＰ，Ａ) 特開 平６−73829（ＪＰ，Ａ) 実開 昭59−89915（ＪＰ，Ｕ) 実開 平４−58267（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 9/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-73828 (JP, A) JP-A-6-73829 (JP, A) Fully open Showa 59-89915 (JP, U) Really open flat 4- 58267 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) E04B 9/00
Claims (1)
に連通する換気用空気通路が設けられており、底部に多
数の通気孔を有しかつ両内面に不燃性体積膨張材を有す
るＵ型材を上縁フランジを有するＵ型枠内に嵌入して形
成した換気金具が、前記換気用空気通路内に配設される
と共に、該上縁フランジがビスを介して天井に固定され
て構成されたことを特徴とした天井の換気構造。1. A ceiling formed of a non-combustible ceiling plate is provided with a ventilation air passage communicating with the ceiling, has a plurality of ventilation holes at the bottom, and has a non-combustible volume expanding material on both inner surfaces. A ventilation fitting formed by fitting a U-shaped member into a U-shaped frame having an upper edge flange is disposed in the ventilation air passage, and the upper edge flange is fixed to a ceiling via a screw. The ventilation structure of the ceiling which was characterized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16186894A JP3268129B2 (en) | 1994-07-14 | 1994-07-14 | Ceiling ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16186894A JP3268129B2 (en) | 1994-07-14 | 1994-07-14 | Ceiling ventilation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0827941A JPH0827941A (en) | 1996-01-30 |
| JP3268129B2 true JP3268129B2 (en) | 2002-03-25 |
Family
ID=15743497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16186894A Expired - Lifetime JP3268129B2 (en) | 1994-07-14 | 1994-07-14 | Ceiling ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3268129B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4580544B2 (en) * | 2000-12-20 | 2010-11-17 | 日本化学産業株式会社 | Fireproof ventilation structure behind the hut |
| JP2003074142A (en) * | 2001-08-30 | 2003-03-12 | Ohbayashi Corp | Floor and ceiling construction |
| JP4171312B2 (en) * | 2003-01-24 | 2008-10-22 | 日本化学産業株式会社 | Fire ventilator and building fire ventilator structure |
| JP4820111B2 (en) * | 2004-08-03 | 2011-11-24 | 積水化学工業株式会社 | Building ventilation equipment |
| JP4790301B2 (en) * | 2004-08-03 | 2011-10-12 | 積水化学工業株式会社 | Building ventilation equipment |
-
1994
- 1994-07-14 JP JP16186894A patent/JP3268129B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827941A (en) | 1996-01-30 |
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