JP4764568B2 - Eave ceiling ventilation - Google Patents
Eave ceiling ventilation Download PDFInfo
- Publication number
- JP4764568B2 JP4764568B2 JP2001221205A JP2001221205A JP4764568B2 JP 4764568 B2 JP4764568 B2 JP 4764568B2 JP 2001221205 A JP2001221205 A JP 2001221205A JP 2001221205 A JP2001221205 A JP 2001221205A JP 4764568 B2 JP4764568 B2 JP 4764568B2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- ventilation
- expansion member
- eaves ceiling
- groove
- 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 - Fee Related
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Description
【0001】
【発明の属する技術分野】
この発明は、住宅などの軒天井に使用する換気用縁材に関し、特に、火災時に換気口を自動的に閉鎖する防火性に富んだ換気用縁材の改良に係る。
【0002】
【従来の技術】
住宅の屋根裏換気の為に、軒天井に換気口付きの見切り縁材を取付けると共に、その換気口を火災発生時に自動的に閉鎖するようにする技術は、本発明者によって既に提案(特願2000−337575号)されている。その構造は、換気口から続く通気路に、加熱膨張部材を取付けておき、平時は開口状態で換気を許し、火災発生時には、その熱によって加熱膨張部材を膨らませて、通気路を遮断し、火炎が屋根裏に侵入するのを防止するのである。
【0003】
【発明が解決しようとする課題】
ところが、防火対策としては、前記の換気口を閉じるだけでは充分ではない。なぜなら、軒天井板と縁材との結合は、縁材に形成された溝部に、軒天井板の端縁を嵌め込んだ構造であるが、火災時に熱を受けると、各部材の膨張や変形によって、結合部に緩みができて、場合によっては溝と軒天井板端縁との間に数mmもの隙間が発生する。そして、このような隙間ができると、ここから熱気が天井裏へと伝わって、延焼を助長することになる。
【0004】
本発明は、このような点に鑑み、火災発生時に軒天井板と縁材との結合部に隙間が発生しないようにして、火災時の熱気が軒天井裏に伝わるのを防止した軒天井換気用縁材を提供するにある。
【0005】
【課題を解決するための手段】
本発明の軒天井換気用縁材の技術的手段は、縁材の板面に形成された換気口から続く通気路、および、その側方に該通気路と側壁によって区切られて形成された軒天井板の端縁を嵌入結合させる溝部を備え、溝部の底、および、通気路内に、耐火性の加熱膨張部材を取付け、火災発生時には加熱膨張させて、溝部に生じた隙間を埋めると共に、通気路を遮断することにある。
【0007】
【発明の実施の形態】
本発明の縁材の実施の形態を、図面の実施例に基づいて説明する。図1に、軒天井換気用見切り縁材に用いた例の断面図が示されている。見切り縁材1の材質は、ステンレス鋼板などの金属材製である。見切り縁材1には、換気口2が設けられていて、この換気口2は、図2に示されるように多数の細長い孔3で構成されている。また、この孔3は、両側縁に切込みを入れた押込み加工で形成されていて、火炎が一気に天井裏に吹き込まないように配慮されている。
【0008】
4は目隠しと水返しとを兼ねた遮蔽板で、換気口2の後背位置に、適当な通気間隔を開けて設けられている。この遮蔽板4は片持状態で縁材本体に固定されていて、先端側には通気の為の間隙5ができるように配されている。また、遮蔽板4の先端部には、加熱膨張部材6が全長に互って取付けられている。この加熱膨張部材6は、一定の高温、例えば200℃以上に加熱されると、厚さ方向に数倍〜数十倍に膨張するものであり、一般に市販提供されているものを用いる。例えば、合成樹脂基材にリン化合物、熱膨張性黒鉛などを含有させてなるものが市販提供されている。
【0009】
7は補足の為に見切り縁材1の本体の側に設けられた加熱膨張部材であり、火災時には、前記の膨張部材6と共に、この膨張部材7が膨張し、換気口2の通気路を遮断する。また、見切り縁材1の一方の側縁には、軒天井板の端を嵌入結合させる為の溝部8が設けられていて、その溝底にも耐火性の加熱膨張部材9が取付けられている。
【0010】
図3は見切り縁材1を軒天井の軒先の方に取付けた状態で、図中、11は軒天井板、12は野縁、13は鼻隠し、14は鼻隠し下地である。平常時には、加熱膨張部材6、7は薄くて、邪魔にならないので、図示の矢印Aのように、外気は換気口2及び間隙5を通って、屋根裏へと自由に流れ込むことができる。しかし、火災発生時には、膨張部材6、7が熱を受けて、図4のように膨張して、遮蔽板4と見切り縁材本体1との間の通気間隙を塞いでしまうので、図示の矢印Bのように火炎の侵入を遮断する。また、火災発生時には、加熱膨張部材9も同時に膨張して、軒天井板11と溝部8との間に発生した隙間を埋め、熱気が天井裏に伝わらないようにする。
【0011】
図5は、軒天井の壁側の方に取付ける見切り縁材21の実施例である。この実施例では、遮蔽板は2段に設けられていて、平常時には、外気は矢印Cのように、換気口2から入った後、第1遮蔽板22の先端を迂回し、第2遮蔽板23との間を通り、更に端壁の孔24を抜けて屋根裏へと流入するようになる。また、火災時には、前記の実施例と同様に、加熱膨張部材6、7が膨張して、通気路を遮断すると共に、加熱膨張部材9が膨張して、軒天井板11と溝部8との間に発生した隙間を埋める。
【0012】
本発明は前記の実施例に限定されるものではなく、特許請求の範囲の記載の範囲内で自由に変形実施可能である。特に、溝部8の形状や、溝部8と軒天井板11との結合構成、更には加熱膨張部材9の種類などは自由である。
【0013】
【発明の効果】
本発明の軒天井換気用縁材は、溝部に加熱膨張部材が付いていて、火災発生時には、この加熱膨張部材が膨張して、軒天井板と溝部との間にできた隙間を埋めるので、熱気が軒天井裏に伝わることがなく、延焼防止効果を高めることができる。更に、加熱膨張部材は、耐火性であるので、この遮断状態を確実に保持でき、信頼性が高い。その上、加熱膨張部材の付いているのが、溝部の底であるから、輸送中や取付作業中などに、他のものとの衝突による脱落がなく、また、軒天井板の端縁の嵌入作業に支障を招かず、かつ、部材取付位置にズレが生ぜず、加熱膨張部材を常に確実に加熱膨張させることができて、軒天井板と溝部との間に発生した隙間を正確に埋めて、延焼を防止できる。
【0014】
更に、本発明では、換気口から続く通気路に、加熱膨張部材が取付けられていて、火災発生時には、火災の熱を受けて、この加熱膨張部材が膨張し、通気路を遮断するので、火炎が屋内に入ることがなく、隣家の火災からの延焼を抑制できる。また、通気路と、軒天井板が嵌入する溝部とは、完全に別個になっていて、個々の箇所を別個、独立に、加熱膨張部材で遮断するので、確実な遮断が可能である。
【図面の簡単な説明】
【図1】本発明の軒天井換気用縁材の実施例の断面図。
【図2】換気口の形状を示す表面図。
【図3】取付状態を示す断面図。
【図4】火災時の状態を示す断面図。
【図5】他の実施例の断面図。
【符号の説明】
1、21 見切り縁材
2 換気口
4 遮蔽板
6、7、9 加熱膨張部材
8 溝部
11 軒天井板
22 第1遮蔽板
23 第2遮蔽板
24 孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilation rim used for eaves ceilings of houses and the like, and more particularly to an improvement in a ventilation rim having a high fire resistance that automatically closes a ventilation opening in the event of a fire.
[0002]
[Prior art]
A technique for attaching a parting edge member with a vent to the eaves ceiling for the attic of a house and automatically closing the vent in the event of a fire has already been proposed by the present inventor (Japanese Patent Application No. 2000). -337575). In the structure, a heating expansion member is attached to the ventilation path that continues from the ventilation opening, and ventilation is allowed in the open state during normal times. In the event of a fire, the heating expansion member is inflated by the heat to block the ventilation path, and flame Is prevented from entering the attic.
[0003]
[Problems to be solved by the invention]
However, as a fire prevention measure, it is not sufficient to simply close the vent. This is because the eaves ceiling plate and the edge member are connected to each other with a groove formed in the edge member so that the edge of the eaves ceiling plate is fitted. As a result, the coupling portion can be loosened, and in some cases, a gap of several mm is generated between the groove and the edge of the eaves ceiling plate. And when such a gap is formed, hot air is transmitted from here to the back of the ceiling to promote the spread of fire.
[0004]
In view of such a point, the present invention prevents eaves from being transmitted to the back of the eaves ceiling by preventing a gap from being generated in the joint between the eaves ceiling plate and the edge material in the event of a fire. To provide edge material.
[0005]
[Means for Solving the Problems]
The technical means for the eaves ceiling ventilation rim material of the present invention includes an eaves passage continuing from a ventilation port formed on a plate surface of the eaves material, and eaves formed by being separated by the ventilation path and side walls on the side thereof. It has a groove part that fits and joins the edge of the ceiling plate , and a fire-resistant heating expansion member is attached to the bottom of the groove part and in the ventilation path, and when the fire breaks out, it is heated and expanded to fill the gap generated in the groove part , It is to block the air passage .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the edge material of the present invention will be described based on examples of the drawings. FIG. 1 shows a cross-sectional view of an example used for a parting edge material for eaves ceiling ventilation. The material of the parting edge material 1 is made of a metal material such as a stainless steel plate. The parting edge material 1 is provided with a ventilation port 2, and the ventilation port 2 is composed of a number of elongated holes 3 as shown in FIG. 2. Further, the hole 3 is formed by a pressing process in which both side edges are cut, and consideration is given so that a flame does not blow into the back of the ceiling at a stretch.
[0008]
4 is a shielding plate that serves both as a blindfold and a water return, and is provided at a rear position of the ventilation opening 2 with an appropriate ventilation interval. This
[0009]
[0010]
FIG. 3 shows a state in which the parting edge material 1 is attached toward the eaves of the eaves ceiling, in which 11 is an eaves ceiling board, 12 is a field edge, 13 is a nose cover, and 14 is a nose cover base. During normal times, the
[0011]
FIG. 5 shows an example of the
[0012]
The present invention is not limited to the above-described embodiments, and can be freely modified within the scope of the claims. In particular, the shape of the groove 8, the coupling configuration of the groove 8 and the eaves ceiling plate 11, and the type of the
[0013]
【The invention's effect】
The eaves ceiling ventilation rim material of the present invention has a heating expansion member in the groove, and when a fire occurs, the heating expansion member expands and fills the gap formed between the eaves ceiling plate and the groove, Hot air is not transmitted to the back of the eaves ceiling, and the fire spread prevention effect can be enhanced. Furthermore, since the heating expansion member is fireproof, it can reliably maintain this shut-off state and has high reliability. In addition, the heating expansion member is attached to the bottom of the groove, so that it does not fall off due to collision with other objects during transportation or installation work, and the edge of the eaves ceiling board is inserted. There is no hindrance to the work, and there is no displacement at the member mounting position. The heated expansion member can always be heated and expanded reliably, and the gap generated between the eaves ceiling plate and the groove can be filled accurately. Can prevent the spread of fire.
[0014]
Furthermore, in the present invention, a heating expansion member is attached to the air passage that continues from the ventilation port, and in the event of a fire, the heat expansion member expands and blocks the air passage due to the heat of the fire. Does not enter indoors and can suppress the spread of fire from the fire in the neighboring house. In addition, the air passage and the groove portion into which the eaves ceiling plate is fitted are completely separate, and each portion is separately and independently blocked by the heating expansion member, so that reliable blocking is possible.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an embodiment of an eaves ceiling ventilation rim material according to the present invention.
FIG. 2 is a surface view showing the shape of a ventilation opening.
FIG. 3 is a cross-sectional view showing a mounting state.
FIG. 4 is a cross-sectional view showing a state during a fire.
FIG. 5 is a cross-sectional view of another embodiment.
[Explanation of symbols]
1, 21 Parting edge material 2
Claims (1)
溝部の底、および、通気路内に、耐火性の加熱膨張部材を取付け、火災発生時には加熱膨張させて、溝部に生じた隙間を埋めると共に、通気路を遮断する軒天井換気用縁材。 An air passage that extends from the ventilation port formed on the plate surface of the edge member, and a groove portion that fits and joins the edge of the eaves ceiling plate that is formed by being divided by the air passage and the side wall on the side of the air passage ,
An eaves ceiling ventilation rim that attaches a fire-resistant heating and expansion member to the bottom of the groove and in the air passage, and expands by heating in the event of a fire to fill the gap formed in the groove and block the air passage .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001221205A JP4764568B2 (en) | 2001-07-23 | 2001-07-23 | Eave ceiling ventilation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001221205A JP4764568B2 (en) | 2001-07-23 | 2001-07-23 | Eave ceiling ventilation |
Publications (2)
Publication Number | Publication Date |
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JP2003027652A JP2003027652A (en) | 2003-01-29 |
JP4764568B2 true JP4764568B2 (en) | 2011-09-07 |
Family
ID=19054906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2001221205A Expired - Fee Related JP4764568B2 (en) | 2001-07-23 | 2001-07-23 | Eave ceiling ventilation |
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4498107B2 (en) * | 2004-11-24 | 2010-07-07 | 城東テクノ株式会社 | Eave ceiling ventilation |
JP2007308964A (en) * | 2006-05-18 | 2007-11-29 | Tookoo:Kk | Eave soffit ventilation member |
JP5235339B2 (en) * | 2007-06-08 | 2013-07-10 | 株式会社トーコー | Ventilation device and house ventilation structure using the same |
FR2931295B1 (en) * | 2008-05-13 | 2010-08-20 | Altatech Semiconductor | DEVICE AND METHOD FOR INSPECTING SEMICONDUCTOR WAFERS |
DE102008039144A1 (en) * | 2008-08-21 | 2010-02-25 | Efaflex Inzeniring D.O.O. | lifting door |
JP6240546B2 (en) * | 2014-03-31 | 2017-11-29 | 株式会社Lixil | Ventilator for sash window and sash window |
JP5701431B1 (en) * | 2014-06-09 | 2015-04-15 | 株式会社ハウゼコ | Eaves ventilation structure |
JP7117707B2 (en) * | 2016-09-23 | 2022-08-15 | 株式会社トーコー | ventilation member |
JP6927838B6 (en) * | 2017-10-13 | 2021-09-29 | 三菱ケミカルインフラテック株式会社 | Eaves structure |
JP7162294B2 (en) * | 2018-07-17 | 2022-10-28 | 株式会社トーコー | Ventilation member, construction method for ventilation member, and manufacturing method for ventilation member |
JP7254594B2 (en) * | 2019-04-01 | 2023-04-10 | 積水化学工業株式会社 | balcony structure |
JP7237778B2 (en) * | 2019-09-04 | 2023-03-13 | Ykk Ap株式会社 | Door body and fittings |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0781335B2 (en) * | 1992-04-23 | 1995-08-30 | 元旦ビューティ工業株式会社 | Joint cover material and fireproof roof |
JP3268024B2 (en) * | 1992-08-25 | 2002-03-25 | 日本化学産業株式会社 | Ceiling ventilation structure |
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2001
- 2001-07-23 JP JP2001221205A patent/JP4764568B2/en not_active Expired - Fee Related
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