JP2604955B2 - Outdoor hood with fire damper - Google Patents

Outdoor hood with fire damper

Info

Publication number
JP2604955B2
JP2604955B2 JP4343948A JP34394892A JP2604955B2 JP 2604955 B2 JP2604955 B2 JP 2604955B2 JP 4343948 A JP4343948 A JP 4343948A JP 34394892 A JP34394892 A JP 34394892A JP 2604955 B2 JP2604955 B2 JP 2604955B2
Authority
JP
Japan
Prior art keywords
damper
plate
damper plate
mounting frame
outdoor hood
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
Application number
JP4343948A
Other languages
Japanese (ja)
Other versions
JPH06193927A (en
Inventor
修司 成田
Original Assignee
松下精工株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 松下精工株式会社 filed Critical 松下精工株式会社
Priority to JP4343948A priority Critical patent/JP2604955B2/en
Publication of JPH06193927A publication Critical patent/JPH06193927A/en
Application granted granted Critical
Publication of JP2604955B2 publication Critical patent/JP2604955B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、室壁に設けられた換気
口等の開口部に設けることによって、火災発生時に、そ
の火災が他住居に延焼するのを防止するための防火ダン
パー付屋外フードに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor with a fire damper for preventing a fire from spreading to another house when a fire occurs by providing the opening in a ventilation hole or the like provided in a room wall. It's about food.

【0002】[0002]

【従来の技術】近年、防火ダンパー付屋外フードは、火
災による延焼を未然に防止する換気部材として、その安
全性から需要がますます増えつつある。
2. Description of the Related Art In recent years, outdoor hoods with fireproof dampers have been increasingly demanded as ventilation members for preventing the spread of fire due to fire, due to their safety.

【0003】従来、この種の防火ダンパー付屋外フード
は、実開平2−17148号公報に示すような構成が一
般的であった。以下、その構成について図4〜図6を参
照しながら説明する。
Heretofore, this type of outdoor hood with a fireproof damper has generally been configured as shown in Japanese Utility Model Laid-Open No. 2-17148. Hereinafter, the configuration will be described with reference to FIGS.

【0004】図に示すように、室壁101に開口された
開口部102の室外103側に設置され、内部に通風路
104を有したダンパー取付枠105内部の室外103
側上端部に設けたダンパー支持部106に、その一方の
端部を回動自在に支持させて通風路104を開閉するダ
ンパー板107を設ける一方、このダンパー板107を
室外103側から覆う屋外フード108をダンパー取付
枠105に取付け、さらに屋外フード108の通風路1
04と対向する内壁面に設けた支持部108aに、その
一方の端部を回動自在に支持させて基端部とし、ダンパ
ー板107閉鎖時には、その先端部がダンパー板107
に当接し、このダンパー板107が開かないように、押
圧する押圧板109と、ダンパー板107を開放状態に
保持するとともに、通風路104および屋外フード10
8内部に異常高温の通風があったとき、これによって溶
断し、ダンパー板107の保持を解除する温度ヒューズ
110とを設け、火災が発生し、温度ヒューズ110が
溶断してダンパー板107が保持状態より開放される
と、ダンパー板107と押圧板109とが自重によって
回動していき、ダンパー板107の先端部がダンパー取
付枠105内壁の下面から突設された係止板111に当
接して通風路104を閉鎖するとともに、このダンパー
板107が押圧板109によって係止板111に押付け
られることにより、火災にともなって室内112側の圧
力が上昇し、ダンパー板107を開放させようとするの
を阻止し、火災が延焼するのを防止していた。
[0004] As shown in the figure, the outside 103 inside a damper mounting frame 105 which is installed on the outside 103 side of an opening 102 opened to a room wall 101 and has an air passage 104 therein.
An outdoor hood that covers the damper plate 107 from the outdoor 103 side while providing a damper plate 107 that opens and closes the ventilation passage 104 by rotatably supporting one end of the damper support portion 106 provided at the upper end of the side. 108 is mounted on the damper mounting frame 105, and
One end is rotatably supported by a supporting portion 108a provided on the inner wall surface facing the inner wall 04 and serves as a base end, and when the damper plate 107 is closed, the front end thereof becomes the damper plate 107.
, And the damper plate 107 is pressed so that the damper plate 107 does not open, and the damper plate 107 is held in an open state.
8, when an abnormally high temperature of air is blown inside, a thermal fuse 110 is provided to blow the fuse and release the holding of the damper plate 107. A fire occurs, the thermal fuse 110 blows, and the damper plate 107 is held. When the damper plate 107 is released further, the damper plate 107 and the pressing plate 109 rotate by their own weight, and the leading end of the damper plate 107 comes into contact with the locking plate 111 projecting from the lower surface of the inner wall of the damper mounting frame 105. When the ventilation passage 104 is closed and the damper plate 107 is pressed against the locking plate 111 by the pressing plate 109, the pressure in the room 112 increases due to the fire, and the damper plate 107 is opened. To prevent the fire from spreading.

【0005】[0005]

【発明が解決しようとする課題】このような従来の防火
ダンパー付屋外フードでは、長期にわたって使用してい
る間に、押圧板109の支持部108aに塵が付着した
り錆等が発生し、押圧板109の回動動作に支障が生
じ、押圧板109の自重で回動しない場合には、ダンパ
ー板107を押圧することができないという課題があっ
た。
In such a conventional outdoor hood with a fire damper, dust adheres to the support portion 108a of the pressing plate 109 and rust or the like is generated during use for a long period of time. When the rotation of the plate 109 is hindered and the pressing plate 109 does not rotate due to its own weight, there is a problem that the damper plate 107 cannot be pressed.

【0006】また、ダンパー取付枠105内部の上端に
設けたダンパー支持部106にダンパー板107の一方
の端部を回動自在に支持するとともに、先端部をダンパ
ー取付枠105の係止板111に当接させることによっ
て通風路104を閉鎖していることから、通風路104
閉鎖時には、ダンパー板107は通風路104内部に収
まることとなり、このダンパー板107の回動動作を良
好に行うために、ダンパー取付枠105の内壁とダンパ
ー板107の外周との間にある程度の隙間を設けなけれ
ばならないので、通風路104の遮断効果が悪くなると
いう課題があった。
Further, one end of a damper plate 107 is rotatably supported by a damper support portion 106 provided at an upper end inside the damper mounting frame 105, and a front end portion is supported by a locking plate 111 of the damper mounting frame 105. Since the ventilation passage 104 is closed by being brought into contact, the ventilation passage 104 is closed.
When the damper plate 107 is closed, the damper plate 107 is accommodated in the ventilation passage 104. To make the rotation of the damper plate 107 satisfactory, a certain gap is provided between the inner wall of the damper mounting frame 105 and the outer periphery of the damper plate 107. Therefore, there is a problem that the blocking effect of the ventilation passage 104 is deteriorated.

【0007】また、図5に示すように、火災が発生し、
ダンパー板107が閉鎖状態になるとともに、このダン
パー板107を押圧板が押圧して防火ダンパーとしての
役割を果たしたのち、このダンパー部の復帰作業を室外
103側に回ることなく、室内112側から容易に行え
るように、押圧板109の形状をダンパー板閉鎖時に先
端部が、支持部108aより上方に位置するように形成
しておき、室内112側からダンパー板107の下部を
室外103側へ強く押して、回動させることによって、
押圧板109の先端部を上方に滑らせながら回動させる
ようにしているので、ダンパー板107を閉鎖状態に押
圧ロックすることができないことから、火災にともない
室内112側の圧力が異常上昇した場合には、通風路1
04が開放される恐れがあった。
Also, as shown in FIG. 5, a fire occurs,
After the damper plate 107 is closed and the pressing plate presses the damper plate 107 to serve as a fire damper, the return operation of the damper portion does not turn to the outdoor 103 side, but from the indoor 112 side. To facilitate the operation, the shape of the pressing plate 109 is formed such that the tip portion is located above the support portion 108a when the damper plate is closed, and the lower portion of the damper plate 107 is strongly pushed from the room 112 side to the outdoor 103 side. By pushing and turning,
When the pressure on the room 112 side abnormally rises due to a fire, since the tip of the pressing plate 109 is rotated while sliding upward, the damper plate 107 cannot be pressed and locked in the closed state. Has a ventilation path 1
04 could be opened.

【0008】本発明は上記課題を解決するもので、防火
ダンパー付屋外フードを長期にわたって使用している間
に、押圧板の支持部に塵が付着したり錆等が発生し、こ
の押圧板が作動しなくなるのを確実に防止することので
きる防火ダンパー付屋外フードを提供することを第1の
目的とする。
The present invention has been made to solve the above-mentioned problems, and while the outdoor hood with a fireproof damper has been used for a long period of time, dust adheres to the support portion of the pressing plate or rust is generated. It is a first object of the present invention to provide an outdoor hood with a fireproof damper that can reliably prevent operation from stopping.

【0009】第2の目的はダンパー板の回動動作性を損
なうことなく、ダンパー板閉鎖時の遮断効果を極力向上
させることにある。
A second object is to improve the blocking effect when the damper plate is closed as much as possible without impairing the rotational operability of the damper plate.

【0010】第3の目的は防火ダンパー付屋外フードの
防火ダンパー部の復帰作業性を損なうことなく、火災発
生時には、防火ダンパーを確実に閉鎖状態に保持させる
ことにある。
A third object of the present invention is to surely keep the fire damper closed in the event of a fire without impairing the return workability of the fire damper portion of the outdoor hood with the fire damper.

【0011】[0011]

【課題を解決するための手段】本発明の第1の目的を達
成するための第1の手段は、室壁に開口された開口部に
設置され、内部に通風路を有したダンパー取付枠と、こ
のダンパー取付枠の室外側上部に、その上端部を回動自
在に支持させて前記通風路を開閉するダンパー板と、こ
のダンパー板を覆って前記ダンパー取付枠に取着される
屋外フードと、この屋外フード内部に設けられ、前記ダ
ンパー板を開放状態に保持する温度ヒューズと、前記屋
外フード内壁に、その一方の端部を回動自在に支持させ
て基端部とし、その先端部を前記ダンパー板閉鎖時に前
記ダンパー板に当接させて、このダンパー板を閉鎖方向
に押圧する押圧板とを備え、前記押圧板の先端部を前記
ダンパー板に設けたガイド部に上下方向摺動自在に係合
した防火ダンパー付屋外フードの構成としたものであ
る。
A first means for achieving the first object of the present invention is a damper mounting frame installed in an opening formed in a chamber wall and having a ventilation passage therein. A damper plate that opens and closes the ventilation passage by rotatably supporting an upper end of the damper mounting frame at an outdoor upper portion, and an outdoor hood that covers the damper plate and is attached to the damper mounting frame. A temperature fuse provided inside the outdoor hood and holding the damper plate in an open state; and an inner wall of the outdoor hood having one end rotatably supported as a base end, and a tip end thereof. A pressure plate which is brought into contact with the damper plate when the damper plate is closed, and presses the damper plate in a closing direction; and a tip end of the pressure plate is vertically slidable on a guide provided on the damper plate. Fire damper engaged with It is obtained by the outdoor hood configuration.

【0012】また第2の目的を達成するための第2の手
段は、ダンパー取付枠は室外側周端部を絞り加工によっ
て内方へ折曲形成したフランジ部を一体に具備し、この
フランジ部にダンパー板を当接させて前記ダンパー取付
枠の通風路を閉鎖する防火ダンパー付屋外フードの構成
としたものである。
A second means for attaining the second object is that the damper mounting frame integrally has a flange portion formed by drawing inward the outer peripheral end portion by drawing, and this flange portion is provided. And an outdoor hood with a fireproof damper for closing a ventilation path of the damper mounting frame by contacting a damper plate with the damper plate.

【0013】また第3の目的を達成するための第3の手
段は、ダンパー板閉鎖時に押圧板の先端部と支持部とを
ほぼ水平に位置させて前記ダンパー板を閉鎖方向に押圧
ロックするとともに、前記ダンパー板に室内側から前記
押圧板の押圧ロックを解除するロック解除装置を設けた
防火ダンパー付屋外フードの構成としている。
A third means for attaining the third object is that, when the damper plate is closed, the distal end portion of the pressing plate and the support portion are positioned substantially horizontally to press-lock the damper plate in the closing direction. An outdoor hood with a fire damper is provided, wherein the damper plate is provided with an unlocking device for unlocking the pressing plate from the indoor side.

【0014】[0014]

【作用】本発明は上記した第1の手段の構成により、防
火ダンパー付屋外フードを長期にわたって使用している
間に押圧板の支持部に塵が付着したり錆等が発生して押
圧板の回動動作に支障が生じていても、火災発生時に通
風路内および屋外フード内部に異常高温の通風があり、
温度ヒューズが溶断すると、ダンパー板が自重で下方に
回動して行くとともに、このダンパー板に押圧板が強制
連動されて下方に回動して行き、ダンパー板閉鎖時に
は、このダンパー板が押圧板によって開放しないように
確実に押圧されることになる。
According to the first aspect of the present invention, when the outdoor hood with the fire damper is used for a long period of time, dust adheres to the support portion of the pressing plate or rust or the like is generated, so that the pressing plate can be rusted. Even if the rotation operation is hindered, there is abnormally high temperature ventilation in the ventilation path and inside the outdoor hood at the time of fire,
When the thermal fuse is blown, the damper plate pivots downward by its own weight, and the pressing plate is forcibly linked to the damper plate and pivots downward. When the damper plate is closed, the damper plate moves downward. Is surely pressed so as not to open.

【0015】また、第2の手段の構成により、ダンパー
取付枠の室外側周端部を絞り加工することによって、一
体に設けたフランジ部にダンパー板を当接させて通風路
を閉鎖することから、ダンパー板取付枠の内壁面とダン
パー板の外周との間にダンパー板の回動動作を良好に行
うための隙間を設けなくともよく、しかも、フランジ部
の平面度が大幅に向上することになり、ダンパー板閉鎖
時に、このダンパー板とフランジ部との間に発生する隙
間を減少させることができることとなる。
According to the second means, the outer peripheral end of the damper mounting frame is drawn so that the damper plate is brought into contact with the integrally provided flange to close the ventilation passage. Therefore, it is not necessary to provide a gap between the inner wall surface of the damper plate mounting frame and the outer periphery of the damper plate so as to favorably rotate the damper plate, and the flatness of the flange portion is greatly improved. That is, the gap generated between the damper plate and the flange when the damper plate is closed can be reduced.

【0016】また、第3の手段の構成により、ダンパー
板閉鎖時には、押圧板の先端部と支持部とが水平に位置
し、ダンパー板をロックすることによって、室内側の圧
力が異常に上昇してダンパー板を開放しようとするのを
確実に防止するとともに、ダンパー板閉鎖後には、室内
側からロック解除装置によって容易に押圧板のロックを
解除して、防火ダンパー部の復帰作業を行うことができ
ることとなる。
According to the configuration of the third means, when the damper plate is closed, the distal end of the pressing plate and the support portion are positioned horizontally, and by locking the damper plate, the pressure inside the room rises abnormally. After the damper plate is closed, the lock plate can be easily unlocked by the lock release device from the indoor side, and the fire protection damper can be returned after the damper plate is closed. You can do it.

【0017】[0017]

【実施例】以下、本発明の一実施例について図1〜図3
を参照しながら説明する。
1 to 3 show an embodiment of the present invention.
This will be described with reference to FIG.

【0018】図に示すように、1はダンパー板取付枠で
あり、室壁2に開口された開口部3の室外4側の外周を
囲む枠状で、その内部に形成した通風路5を開口部3に
連通するように、一方の端部外周に設けた取付フランジ
部6によって室壁2に固定されている。また、ダンパー
板取付枠1の室外4側端部には、このダンパー板取付枠
1の周端部を絞り加工によって内方へ折曲形成したフラ
ンジ部7が一体に設けられており、このフランジ部7の
上部に設けたダンパー支持部8に、その上端部を回動自
在に支持させて通風路5を開閉する板状のダンパー板9
が設けられている。また、ダンパー取付枠1には、この
ダンパー板取付枠1とダンパー板9を室外4側から覆う
屋外フード10が取付けされており、室外4側からの雨
水の浸入を防止している。そして、屋外フード10内部
には、棒材を略長方形に形成し、軸長の長い側の一方の
端部を支持部12aとし、この支持部12aを屋外フー
ド10の室外4側の内壁面に設けた押圧板支持部11に
回動自在に支持させるとともに、もう一方の端部、すな
わち先端部を係合部12bとし、この係合部12bをダ
ンパー板9閉鎖状態でのダンパー板9の室外4側の面の
支持部12aとほぼ水平の位置から上方向に向かって設
けたガイド部13に上下方向摺動自在に係合させること
によって、押圧板12自身の回動動作がダンパー板9の
回動動作に強制的に連動され、かつダンパー板9閉鎖時
には、支持部12aと係合部12bとがほぼ水平に位置
し、ダンパー板9を閉鎖方向ロックさせるものである。
As shown in FIG. 1, reference numeral 1 denotes a damper plate mounting frame, which has a frame shape surrounding an outer periphery of an opening 3 opened in the chamber wall 2 on the outdoor 4 side, and has a ventilation passage 5 formed therein. It is fixed to the chamber wall 2 by a mounting flange portion 6 provided on the outer periphery of one end so as to communicate with the portion 3. Further, a flange portion 7 is formed integrally with the damper plate mounting frame 1 at an end on the outdoor 4 side, which is formed by bending a peripheral end portion of the damper plate mounting frame 1 inward by drawing. A plate-shaped damper plate 9 for opening and closing the ventilation passage 5 by rotatably supporting the upper end of a damper support 8 provided on the upper part of the section 7
Is provided. Further, an outdoor hood 10 that covers the damper plate mounting frame 1 and the damper plate 9 from the outdoor 4 side is mounted on the damper mounting frame 1 to prevent rainwater from entering from the outdoor 4 side. In the interior of the outdoor hood 10, a bar is formed in a substantially rectangular shape, and one end on the long side of the axial length is used as a support portion 12 a, and this support portion 12 a is attached to the inner wall surface of the outdoor hood 10 on the outdoor 4 side. The other end, that is, the tip, is made to be an engaging portion 12b while being rotatably supported by the provided pressing plate supporting portion 11, and this engaging portion 12b is placed outside the damper plate 9 in the closed state of the damper plate 9. The pivoting operation of the pressing plate 12 itself is performed by engaging the supporting portion 12a on the fourth side with a guide portion 13 provided upward from a substantially horizontal position so as to be slidable in the vertical direction. When the damper plate 9 is closed, the supporting portion 12a and the engaging portion 12b are positioned substantially horizontally when the damper plate 9 is closed, and the closing direction of the damper plate 9 is locked.

【0019】さらに、押圧板12の全長は、ダンパー板
9閉鎖時、支持部12aと係合部12bとがほぼ水平に
位置したとき、ダンパー板9をフランジ部7に押圧する
長さに形成されている。また、屋外フード10内部に
は、押圧板支持部11の上方に設けたバネ係合部14
に、その一方の端部が連結棒15を介して連結されたコ
イルバネ16が設けられており、ダンパー板9の室内2
0側の面に設けられたヒューズ係合部17に一方の端部
を係合した温度ヒューズ18のもう一方の端部をダンパ
ー板9を上方に回動し、開放させるとともに、押圧板1
2を上方に回動させた状態の位置で前記コイルバネ16
のもう一方の端部に連結し、ダンパー板9の下端部に連
結棒15を当接させてダンパー板9を開放状態で保持さ
せている。さらに、このダンパー板9には、ダンパー板
9のガイド部13下端近傍に設けた係合孔19から、そ
の一方の端部を回動自在に室内20側へ臨ませ、この室
内20側端部に回転ハンドル部21を形成するととも
に、もう一方の室外4側端部に回転ハンドル部21の回
動動作に連動してダンパー板9の閉鎖時、このダンパー
板9を押圧ロックした押圧板12の係合部12b近傍を
上方へ押し上げて押圧板12のロック解除をさせる腕部
22を設けたロック解除装置23が備えられている。
Further, the entire length of the pressing plate 12 is formed to a length that presses the damper plate 9 against the flange portion 7 when the support portion 12a and the engaging portion 12b are substantially horizontal when the damper plate 9 is closed. ing. A spring engagement portion 14 provided above the pressing plate support portion 11 is provided inside the outdoor hood 10.
A coil spring 16 whose one end is connected via a connecting rod 15 is provided in the room 2 of the damper plate 9.
The other end of the thermal fuse 18 having one end engaged with the fuse engaging portion 17 provided on the surface on the 0 side is opened by rotating the damper plate 9 upward, and the pressing plate 1 is opened.
2 is rotated upward, and the coil spring 16 is
The other end of the damper plate 9 is connected to the lower end of the damper plate 9 so that the connecting rod 15 is in contact with the damper plate 9 to hold the damper plate 9 in an open state. Further, one end of the damper plate 9 is rotatably faced toward the room 20 from an engagement hole 19 provided near the lower end of the guide portion 13 of the damper plate 9. When the damper plate 9 is closed at the other outdoor 4 side end in conjunction with the rotation of the rotary handle portion 21 at the other end of the outdoor 4, the pressing plate 12 which presses and locks the damper plate 9 is formed. An unlocking device 23 provided with an arm portion 22 for lifting the vicinity of the engaging portion 12b upward to unlock the pressing plate 12 is provided.

【0020】上記構成において、室内20側で火災が発
生し、通風路5および屋外フード10内部に異常高温の
通風があり、温度ヒューズ18が溶断すると、ダンパー
板9が自身の自重によって下方へ回動し始める。そし
て、このダンパー板9の回動動作にともなって押圧板1
2が、自身の自重によって下方へ回動し始めるととも
に、押圧板12の係合部12bが、ガイド部13に案内
されて下方へ摺動していき、押圧板12が強制的に回動
され始める。さらに、ダンパー板9が通風路5を閉鎖す
る方向に回動するにしたがってガイド部13に、その係
合部12bを下方に向かって案内されながら押圧板12
が回動させられていき、ダンパー板9がダンパー取付枠
体1のフランジ部7に当接して通風路5を閉鎖すると同
時に、押圧板12の係合部12bの先端部がダンパー板
9の室外4側の面に当接し、ダンパー板9をフランジ部
7に押圧する。この際、係合部12bと支持部12aと
がほぼ水平に位置することによって、ダンパー板9が開
放方向に回動しようとするのを確実にロックすることと
なる。
In the above configuration, when a fire occurs in the room 20 and abnormally high temperature air flows inside the ventilation path 5 and the outside hood 10 and the temperature fuse 18 is blown, the damper plate 9 is turned downward by its own weight. Start moving. The pressing plate 1 is rotated by the rotation of the damper plate 9.
2 starts rotating downward by its own weight, and the engaging portion 12b of the pressing plate 12 slides downward by being guided by the guide portion 13, whereby the pressing plate 12 is forcibly rotated. start. Further, as the damper plate 9 rotates in the direction to close the ventilation passage 5, the guide plate 13 pushes the engaging plate 12b while guiding the engaging portion 12b downward.
Is rotated, and the damper plate 9 contacts the flange portion 7 of the damper mounting frame 1 to close the ventilation passage 5, and at the same time, the front end of the engaging portion 12 b of the pressing plate 12 moves outside the damper plate 9. The damper plate 9 is pressed against the flange portion 7 by abutting on the surface on the fourth side. At this time, since the engaging portion 12b and the support portion 12a are positioned substantially horizontally, the damper plate 9 is reliably locked from rotating in the opening direction.

【0021】そして、火災が鎮火し、防火ダンパーとし
ての役割を果たしたのちには、室内20側からロック解
除装置23のハンドル部21を回して腕部22を回動さ
せ、押圧板12の係合部12bを上方に押し上げて押圧
板12の押圧ロックを解除するとともに、ダンパー板9
の下端部近傍を室外4側に押しながら開放させ、溶断し
た温度ヒューズ18を新しいものと交換することによっ
て防火ダンパー部の復帰作業を完了させることができ
る。
After the fire has been extinguished and has served as a fire prevention damper, the arm 22 is turned by turning the handle 21 of the lock release device 23 from the room 20 side, and the pressing plate 12 is engaged. The joint 12b is pushed upward to release the pressing lock of the pressing plate 12, and the damper plate 9
By pressing the lower end portion of the airbag 1 toward the outside 4 while opening it, and replacing the blown thermal fuse 18 with a new one, the return operation of the fireproof damper unit can be completed.

【0022】このように本発明の実施例の防火ダンパー
付屋外フードによれば、長期にわたって使用している間
に押圧板12の支持部12aに塵が付着したり錆等が発
生して押圧板12の回動動作に支障が生じ、押圧板12
自身の自重だけでは回動しない場合にも、火災発生時に
通風路5および屋外フード10内部に異常高温の通風が
あり、温度ヒューズ18が溶断した場合には、ダンパー
板9の回動動作に押圧板12が強制連動されるので、ダ
ンパー板9閉鎖時には、押圧板13によってダンパー板
9を開放しないように確実に押圧することができる。
As described above, according to the outdoor hood with the fireproof damper according to the embodiment of the present invention, dust adheres to the support portion 12a of the pressing plate 12 and rust or the like is generated during use for a long period of time. The rotation of the pressure plate 12 is hindered.
When the fire does not rotate by its own weight alone, there is an abnormally high temperature in the ventilation path 5 and the inside of the outdoor hood 10 at the time of a fire, and when the temperature fuse 18 is blown, the rotation of the damper plate 9 is pressed. Since the plate 12 is forcibly linked, when the damper plate 9 is closed, the pressing plate 13 can reliably press the damper plate 9 so as not to open.

【0023】また、ダンパー板取付枠1の室外4側周端
部を絞り加工することにより、一体に設けたフランジ部
7にダンパー板9を当接させることによって、通風路5
を閉鎖することから、ダンパー板取付枠1の内壁面とダ
ンパー板9の外周との間にダンパー板9の回動動作を良
好に行うための隙間を設けなくともよく、しかも、フラ
ンジ部7の平面度が大幅に向上することとなり、ダンパ
ー板9閉鎖時に、このダンパー板9とフランジ部7との
間に発生する隙間を大幅に減少させることができる。
Further, by drawing the peripheral end of the damper plate mounting frame 1 on the outdoor 4 side, the damper plate 9 is brought into contact with the integrally formed flange portion 7 to thereby form the ventilation passage 5.
Is closed, there is no need to provide a gap between the inner wall surface of the damper plate mounting frame 1 and the outer periphery of the damper plate 9 for favorably rotating the damper plate 9. The flatness is greatly improved, and the gap generated between the damper plate 9 and the flange portion 7 when the damper plate 9 is closed can be greatly reduced.

【0024】このように、本発明の防火ダンパー付屋外
フードによれば、ダンパー板9の回動動作性を損なうこ
となく、ダンパー板9閉鎖時には、このダンパー板9と
フランジ部7との間に発生する隙間を減少させることが
できる。
As described above, according to the outdoor hood with the fireproof damper of the present invention, when the damper plate 9 is closed, the gap between the damper plate 9 and the flange portion 7 is maintained without impairing the rotational operability of the damper plate 9. The generated gap can be reduced.

【0025】また、ダンパー板9閉鎖時には、押圧板1
2の係合部12bと支持部12aとがほぼ水平に位置し
てダンパー板9をフランジ部7に押圧するとともに、ダ
ンパー板9を閉鎖状態にロックすることから、火災にと
もなって室内20側の圧力が異常に上昇してダンパー板
9を開放しようとするのを、確実に阻止することがで
き、しかも、火災鎮火後には、室外4側に回ることな
く、室内20側からロック解除装置23のハンドル部2
1を操作するだけの簡単な作業で、押圧板12の押圧ロ
ックを解除させることによって、防火ダンパー部の復帰
作業を室内20側から行うことができる。
When the damper plate 9 is closed, the pressing plate 1
The second engaging portion 12b and the supporting portion 12a are positioned substantially horizontally to press the damper plate 9 against the flange portion 7 and to lock the damper plate 9 in a closed state. It is possible to reliably prevent the pressure from rising abnormally and to attempt to open the damper plate 9, and after the fire has been extinguished, the lock release device 23 does not turn to the outdoor 4 side but from the indoor 20 side. Handle part 2
By simply releasing the pressing lock of the pressing plate 12 with a simple operation of operating the device 1, the returning operation of the fire prevention damper unit can be performed from the room 20 side.

【0026】このように、本発明の防火ダンパー付屋外
フードによれば、火災発生時には、ダンパー板9を確実
に閉鎖状態に保持するとともに、防火ダンパー部の復帰
作業を室外4側へ回ることなく室内20側だけで行うこ
とができる。
As described above, according to the outdoor hood with a fireproof damper of the present invention, in the event of a fire, the damper plate 9 is securely held in the closed state, and the work of returning the fireproof damper portion does not go to the outside 4 side. It can be performed only on the room 20 side.

【0027】[0027]

【発明の効果】以上の実施例から明らかなように、本発
明によれば火災発生時に通風路を閉鎖するダンパー板の
回動動作に、このダンパー板を閉鎖方向に押圧する押圧
板の回動動作を強制連動させているので、防火ダンパー
付屋外フードを長期にわたって使用している間に押圧板
の支持部に塵が付着したり錆等が発生して押圧板の回動
動作に支障が生じて、この押圧板が作動しなくなるのを
確実に防止することのできる防火ダンパー付屋外フード
を提供できる。
As is clear from the above embodiments, according to the present invention, the rotation of the damper plate for closing the ventilation path in the event of a fire occurs by the rotation of the pressing plate for pressing the damper plate in the closing direction. Because the operation is forcibly linked, dust or rust etc. adheres to the support of the pressing plate while using the outdoor hood with fire damper for a long period of time, which hinders the rotation of the pressing plate Thus, it is possible to provide an outdoor hood with a fireproof damper that can reliably prevent the pressing plate from becoming inoperative.

【0028】また、ダンパー取付枠の室外側周端部を、
絞り加工することによって、このダンパー板取付枠と一
体に設けたフランジ部にダンパー板を当接させて通風路
を閉鎖することにより、ダンパー板の回動動作性を損な
うことなく、ダンパー板閉鎖時の通風路の遮断効果を向
上させることができる。
The outer peripheral end of the damper mounting frame is
By drawing, the damper plate is brought into contact with a flange portion provided integrally with the damper plate mounting frame to close the ventilation path, so that the damper plate can be rotated without impairing its rotational operability. The effect of blocking the ventilation path can be improved.

【0029】また、ダンパー板閉鎖時には、押圧板の先
端部と支持とがほぼ水平に位置してダンパー板を押圧ロ
ックするとともに、防火ダンパーとしての役割を果たし
たのちには、室内側からロック解除装置を操作すること
によって押圧板の押圧ロック状態を解除することができ
るので、防火ダンパー部の復帰作業性を損なうことな
く、火災発生時には、ダンパー板を確実に閉鎖状態に保
持することができる。
When the damper plate is closed, the distal end of the pressing plate and the support are positioned substantially horizontally to press-lock the damper plate and, after serving as a fire damper, release the lock from the indoor side. Since the pressing lock state of the pressing plate can be released by operating the device, the damper plate can be securely held in the closed state when a fire occurs without impairing the return workability of the fire prevention damper unit.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例の防火ダンパー付屋外フード
のダンパー板開放状態を示す側面断面図
FIG. 1 is a side sectional view showing an open state of a damper plate of an outdoor hood with a fire damper according to one embodiment of the present invention.

【図2】同防火ダンパー付屋外フードのダンパー板閉鎖
状態を示す側面断面図
FIG. 2 is a side cross-sectional view showing a closed state of a damper plate of the outdoor hood with a fireproof damper.

【図3】同防火ダンパー付屋外フードのダンパー板閉鎖
状態を示す一部欠正面図
FIG. 3 is a partially cutaway front view showing a closed state of a damper plate of the outdoor hood with the fireproof damper.

【図4】従来の防火ダンパー付屋外フードのダンパー板
開放状態を示す側面断面図
FIG. 4 is a side sectional view showing a state in which a damper plate of a conventional outdoor hood with a fireproof damper is opened.

【図5】同防火ダンパー付屋外フードのダンパー板閉鎖
状態を示す側面断面図
FIG. 5 is a side cross-sectional view showing a closed state of the damper plate of the outdoor hood with the fireproof damper.

【図6】同防火ダンパー付屋外フードのダンパー板開放
状態を示す正面図
FIG. 6 is a front view of the outdoor hood with the fireproof damper in a state where a damper plate is opened.

【符号の説明】[Explanation of symbols]

1 ダンパー取付枠 2 室壁 3 開口部 4 室外 5 通風路 7 フランジ部 9 ダンパー板 10 屋外フード 12 押圧板 12a 支持部 12b 係合部 13 ガイド部 18 温度ヒューズ 20 室内 23 ロック解除装置 DESCRIPTION OF SYMBOLS 1 Damper mounting frame 2 Room wall 3 Opening 4 Outdoor 5 Ventilation path 7 Flange part 9 Damper plate 10 Outdoor hood 12 Press plate 12a Support part 12b Engagement part 13 Guide part 18 Temperature fuse 20 Indoor 23 Lock release device

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 室壁に開口された開口部に設置され、内
部に通風路を有したダンパー取付枠と、このダンパー取
付枠の室外側上部に、その上端部を回動自在に支持させ
て前記通風路を開閉するダンパー板と、このダンパー板
を覆って前記ダンパー取付枠に取着される屋外フード
と、この屋外フード内部に設けられ、前記ダンパー板を
開放状態に保持する温度ヒューズと、前記屋外フード内
壁に、その一方の端部を回動自在に支持させて基端部と
し、その先端部を前記ダンパー板閉鎖時に前記ダンパー
板に当接させて、このダンパー板を閉鎖方向に押圧する
押圧板とを備え、前記押圧板の先端部を前記ダンパー板
に設けたガイド部に上下方向摺動自在に係合した防火ダ
ンパー付屋外フード。
1. A damper mounting frame which is installed in an opening formed in a room wall and has an air passage therein, and an upper end portion of the damper mounting frame is rotatably supported at an upper portion on the outside of the room. A damper plate that opens and closes the ventilation path, an outdoor hood that covers the damper plate and is attached to the damper mounting frame, and a temperature fuse that is provided inside the outdoor hood and holds the damper plate in an open state. On the inner wall of the outdoor hood, one end is rotatably supported as a base end, and the tip end is brought into contact with the damper plate when the damper plate is closed, and the damper plate is pressed in the closing direction. An outer hood with a fire damper in which a front end of the pressing plate is slidably engaged with a guide provided on the damper plate in a vertical direction.
【請求項2】 ダンパー取付枠は室外側周端部を絞り加
工によって内方へ折曲形成したフランジ部を一体に具備
し、このフランジ部にダンパー板を当接させて前記ダン
パー取付枠の通風路を閉鎖する請求項1記載の防火ダン
パー付屋外フード。
2. The damper mounting frame is integrally provided with a flange portion formed by bending an outer peripheral end portion inward by drawing, and a damper plate is brought into contact with the flange portion to allow ventilation of the damper mounting frame. The outdoor hood with a fire damper according to claim 1, which closes a road.
【請求項3】 ダンパー板閉鎖時に押圧板の先端部と支
持部とをほぼ水平に位置させて前記ダンパー板を閉鎖方
向に押圧ロックするとともに、前記ダンパー板に室内側
から前記押圧板の押圧ロックを解除するロック解除装置
を設けた請求項1または2記載の防火ダンパー付屋外フ
ード。
3. When the damper plate is closed, the distal end portion of the pressing plate and the support portion are positioned substantially horizontally to lock the damper plate in the closing direction and lock the pressing plate to the damper plate from the indoor side. The outdoor hood with a fireproof damper according to claim 1 or 2, further comprising a lock release device that releases the lock.
JP4343948A 1992-12-24 1992-12-24 Outdoor hood with fire damper Expired - Fee Related JP2604955B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4343948A JP2604955B2 (en) 1992-12-24 1992-12-24 Outdoor hood with fire damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4343948A JP2604955B2 (en) 1992-12-24 1992-12-24 Outdoor hood with fire damper

Publications (2)

Publication Number Publication Date
JPH06193927A JPH06193927A (en) 1994-07-15
JP2604955B2 true JP2604955B2 (en) 1997-04-30

Family

ID=18365480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4343948A Expired - Fee Related JP2604955B2 (en) 1992-12-24 1992-12-24 Outdoor hood with fire damper

Country Status (1)

Country Link
JP (1) JP2604955B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754903B1 (en) * 2006-07-14 2007-09-04 다스칼코리아(주) Fire escaping apparatus installed in the floor

Also Published As

Publication number Publication date
JPH06193927A (en) 1994-07-15

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