JPH0368312B2 - - Google Patents
Info
- Publication number
- JPH0368312B2 JPH0368312B2 JP494386A JP494386A JPH0368312B2 JP H0368312 B2 JPH0368312 B2 JP H0368312B2 JP 494386 A JP494386 A JP 494386A JP 494386 A JP494386 A JP 494386A JP H0368312 B2 JPH0368312 B2 JP H0368312B2
- Authority
- JP
- Japan
- Prior art keywords
- damper
- heat transfer
- low
- temperature
- case
- 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
Links
- 239000000463 material Substances 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims 2
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000000155 melt Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は防火ダンパーに係り、特に温度追従性
のすぐれた低温可溶体の提供に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fire damper, and particularly to the provision of a low-temperature fusible material with excellent temperature followability.
従来の防火ダンパーは、実公昭52−34067のよ
うに、防火ダンパー風道内に低温可溶体を設けダ
ンパーを開放状態に拘束するが風道外周面からは
低温可溶体の挿入するものではなかつた。
In conventional fire prevention dampers, a low-temperature fusible material is provided in the fire damper air passage to restrain the damper in an open state, as in Publication of Utility Model Publication No. 52-34067, but the low-temperature fusible material is not inserted from the outer peripheral surface of the air passage.
〔発明が解決しようとする問題点〕
しかし、万一、低温可溶体部に不具合が生じた
場合のメンテナンス上、室内側へ設置し風道部外
周面から低温可溶体の交換可能な防火ダンパーの
必要性が生じて来たが、低温可溶体の温度追従性
が悪く、低温可溶体の作動が不確実であつた。[Problem to be solved by the invention] However, for maintenance purposes in the event that a malfunction occurs in the low-temperature fusible part, it is necessary to install a fire damper indoors and replace the low-temperature fusible material from the outer circumferential surface of the air duct. Although the need has arisen, the temperature followability of low temperature fusible materials is poor, and the operation of low temperature fusible materials is uncertain.
本発明の目的は、低温可溶体の構造および固定
部の断熱を考慮する事により、作動確実性の高い
防火ダンパーを提供することにある。 An object of the present invention is to provide a fire prevention damper with high operational reliability by considering the structure of the low-temperature fusible material and the heat insulation of the fixed part.
以下本発明の一実例を図面に従い説明する。図
において、１は筒状防火ダンパーのケースで、そ
れぞれの端部はダクト２３，２５へ挿入する接手
部２を有している。
An example of the present invention will be described below with reference to the drawings. In the figure, 1 is a case of a cylindrical fire damper, each end of which has a joint 2 that is inserted into ducts 23 and 25.
３はスプリング、１５はダンパー、１７はダン
パー１５の回転軸受部、７はケース１へ、８はダ
ンパー１５に固定されたスプリング３の引掛部、
１３はダンパー１５へ固定された低温可溶体１１
の保持具、４はダンパー１５閉鎖時の当板、５は
ケース１の低温可溶体挿入部１６のキヤツプで、
ねじ込み固着されるものである。 3 is a spring, 15 is a damper, 17 is a rotary bearing part of the damper 15, 7 is attached to the case 1, 8 is a hook part of the spring 3 fixed to the damper 15,
13 is a low temperature soluble material 11 fixed to the damper 15
4 is a contact plate when the damper 15 is closed, 5 is a cap for the low temperature fusible material insertion part 16 of the case 1,
It is screwed and fixed.
６はダンパー１５の回転軸１９へ一端を固定し
た開閉レバー、９は低温可溶体１１をねじ１０で
固定するホルダーであり、建物への設置は第１図
の如く、外壁２１内のスリーブ２３内へ一方の接
手部２の片側を挿入してシーリング材２６により
気密性を保持し、他方の接手部２は、排気ダクト
２５へ挿入してシーリング材２６により気密性を
保持している。 6 is an opening/closing lever whose one end is fixed to the rotating shaft 19 of the damper 15, and 9 is a holder to which the low-temperature fusible material 11 is fixed with a screw 10.Installation in a building is as shown in FIG. One side of one joint 2 is inserted into the exhaust duct 25 to maintain airtightness with a sealant 26, and the other joint 2 is inserted into the exhaust duct 25 and maintained airtight with a sealant 26.
２２は、壁２１の屋外側に設けられたウエザー
カバー、２４は壁２１とスリーブ２３間のコーキ
ングの処理材、２８は階高区切り部、２９は天井
面、２７は天井の一部に下方から着脱可能にした
点検用の蓋体である。 22 is a weather cover provided on the outdoor side of the wall 21, 24 is a treated material for caulking between the wall 21 and the sleeve 23, 28 is a floor height division, 29 is a ceiling surface, and 27 is a part of the ceiling from below. This is a removable lid for inspection.
低温可溶体１１は第３図Ａの如く、熱伝片１１
ａと１１ｂで構成され、お互いの接触面Ｓを低温
半田にて固着し、幅Ｗに対し20％以下の伝熱路１
１ｃ，Ｗ−φdとした構造である。 The low-temperature fusible material 11 is a heat transfer piece 11 as shown in FIG.
a and 11b, their contact surfaces S are fixed with low-temperature solder, and the heat transfer path 1 is 20% or less of the width W.
1c, W-φd structure.
以上のように構成した低温可溶体１１は、第５
図の如く、ホルダー５のねじ穴２０へ、紙、アス
ベスト、セラミツク、あるいは合成樹脂等の断熱
ワツシヤー１４ではさみ込んでスプリングワツシ
ヤー１４とねじ１０へ熱伝片１１ａ側を固定し、
熱伝片１１ｂ側は保持具１３のＬ形部に引つ掛
け、ダンパー１５をスプリング３を伸ばした状態
で拘束保持している。 The low-temperature fusible body 11 configured as described above has the fifth
As shown in the figure, the heat transfer plate 11a side is fixed to the spring washer 14 and screw 10 by inserting a heat insulating washer 14 made of paper, asbestos, ceramic, or synthetic resin into the screw hole 20 of the holder 5,
The heat transfer piece 11b side is hooked onto the L-shaped portion of the holder 13, and the damper 15 is restrained and held with the spring 3 stretched.
従つて、火災等の高熱状況になると低温可溶体
１１のＳ面半田部が接触し始め、スプリング３の
引張力により低温可溶体１１は溶断し、ダンパー
１５は当板４面に閉鎖状態となるため延焼防止が
計れる。 Therefore, in a high heat situation such as a fire, the S-side solder portions of the low-temperature fusible body 11 begin to come into contact with each other, the low-temperature fusible body 11 is fused due to the tensile force of the spring 3, and the damper 15 is closed to the 4 surfaces of the contact plate. Therefore, it is possible to prevent the spread of fire.
このような防火ダンパーは、安全性の高いもの
が要求されるが、第４図の如く風道部内に１ｍ／
秒での規定風温Koの時にはTo以上動作せず、規
定風温KaではTa以内に確実に動作する低温可溶
体１１を設置する必要があるが、従来のものは風
温Kaでも線３６の如く温度追従性が悪く、Ta内
で低温可溶体１１が溶断せずダンパー１５は開放
状態のままであつた。 Such a fire damper is required to be highly safe, but as shown in Figure 4, it is
It is necessary to install a low-temperature fusible body 11 that does not operate over T o at a specified air temperature K o in seconds, but operates reliably within T a at a specified air temperature K a. In case a , the temperature followability was poor as shown by line 36, and the low-temperature fusible material 11 did not melt within T a , and the damper 15 remained open.
しかし、本発明によれば断熱ワツシヤー１４に
よりホルダー９及びケース１部への放熱を減少で
き且つＷ−φdの伝熱路のせまい所があり、低温
可溶体１１の受熱が接着面Ｓ面へ有効に働く為、
規定風温Kaでは、３１の如くTa内の32点で溶断
するとともに、規定風温Koでは、To時間では35
点でも溶断しない極めて安全性の高い防火ダンパ
ーを提供することができる。
However, according to the present invention, the heat radiation to the holder 9 and the case 1 can be reduced by the heat insulating washer 14, and the heat transfer path of W-φd is narrow, so that the heat reception of the low temperature fusible material 11 is effective to the adhesive surface S. To work in
At the specified air temperature K a , it melts at 32 points within T a as shown in 31, and at the specified air temperature K o , it melts at 35 points at T o time.
It is possible to provide an extremely safe fire damper that does not melt even at points.
第１図は設置状態を示す縦断面図、第２図Ａは
防火ダンパーを軸方向からみた外観図、第２図Ｂ
は同じく側面外観図、第３図ａは、低温可溶体の
側面図、第３図ｂは第２図Ａの−断面図、第
４図は特性図、第５図は第３図ｂに示す構成要素
の分解斜視図である。
Figure 1 is a vertical sectional view showing the installed state, Figure 2A is an external view of the fire damper seen from the axial direction, Figure 2B
is also a side external view, Figure 3a is a side view of the low-temperature melt, Figure 3b is a sectional view of Figure 2A, Figure 4 is a characteristic diagram, and Figure 5 is shown in Figure 3b. FIG. 3 is an exploded perspective view of the components.
Claims (1)
ー１５と、このダンパー１５に常時通風路を遮断
する方向に回転力を付与するスプリング３と、前
記ダンパーを開放位置に保持しておくために、前
記ケースに固定した少なくとも２枚の熱伝片１１
ａ，１１ｂと、両熱伝片を低温可溶体１１にて接
着してなるものにおいて、 ケース１に取付けたホルダー９に、前記熱伝片
１１ａ，１１ｂの一方を断熱ワツシヤー１４を介
して取付けたことを特徴とする防火ダンパー。 ２ 前記特許請求の範囲第１項記載のものにおい
て、 前記両熱伝片１１ａ，１１ｂを接着する低温可
溶体１１間に、熱伝片の幅Ｗに対し、20％以下の
伝熱路１１ｃを設けたことを特徴とする防火ダン
パー。[Scope of Claims] 1. A damper 15 that blocks the ventilation path 1-1 in the case 1, a spring 3 that constantly applies a rotational force to the damper 15 in a direction that blocks the ventilation path, and a spring 3 that keeps the damper in the open position. at least two heat transfer strips 11 fixed to the case for retention;
a, 11b, and both heat transfer pieces are bonded together with a low-temperature fusible material 11, one of the heat transfer pieces 11a, 11b is attached to a holder 9 attached to the case 1 via a heat insulating washer 14. A fire damper characterized by: 2. In the item described in claim 1, a heat transfer path 11c having a width of 20% or less with respect to the width W of the heat transfer plate is provided between the low temperature fusible material 11 bonding the heat transfer plates 11a and 11b. A fire damper characterized by the provision of a fire damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP494386A JPS62166251A (en) | 1986-01-16 | 1986-01-16 | Fire prevention damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP494386A JPS62166251A (en) | 1986-01-16 | 1986-01-16 | Fire prevention damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62166251A JPS62166251A (en) | 1987-07-22 |
| JPH0368312B2 true JPH0368312B2 (en) | 1991-10-28 |
Family
ID=11597653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP494386A Granted JPS62166251A (en) | 1986-01-16 | 1986-01-16 | Fire prevention damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62166251A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334092A (en) * | 1992-09-03 | 1994-08-02 | Lothar Binzer | Duct sealing apparatus and ducting system |
| JP5386967B2 (en) * | 2008-12-19 | 2014-01-15 | マックス株式会社 | Bathroom ventilation dryer |
-
1986
- 1986-01-16 JP JP494386A patent/JPS62166251A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62166251A (en) | 1987-07-22 |
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