JPS6143164Y2 - - Google Patents
Info
- Publication number
- JPS6143164Y2 JPS6143164Y2 JP787181U JP787181U JPS6143164Y2 JP S6143164 Y2 JPS6143164 Y2 JP S6143164Y2 JP 787181 U JP787181 U JP 787181U JP 787181 U JP787181 U JP 787181U JP S6143164 Y2 JPS6143164 Y2 JP S6143164Y2
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- connecting plate
- ventilation fan
- switch
- actuator
- 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
- 238000009423 ventilation Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Description
【考案の詳細な説明】
本考案は防火シヤツターを有する換気扇に係
り、外部からの火災による炎が換気扇の開口部よ
り進入し延焼するのを防止するため、換気扇の枠
体の中が一定温度になると、シヤツターが閉じる
換気扇において火災以外の原因によりシヤツター
が閉じた場合、その正常な状態への復帰を短時間
に簡単に行なえるようにすることを目的とする。[Detailed description of the invention] This invention relates to a ventilation fan with a fire prevention shutter, and in order to prevent flames from an external fire from entering through the opening of the ventilation fan and spreading the fire, the temperature inside the ventilation fan frame is maintained at a constant temperature. Therefore, the purpose of this invention is to easily restore the normal state in a short time when the shutter closes due to a cause other than a fire in a ventilation fan whose shutter closes.
従来のこの種の換気扇は第１図および第２図に
示すように構成され、その換気扇本体内に設けら
れた熱動体１０１が加熱により溶断すると作動子
スプリング１０２により作動子１０３が回転し、
スイツチ連結棒１０４が連結板１０５より外れ、
スプリング１０６の力により連結板１０５を介し
てシヤツター１０７が閉じるものであつたが、こ
の換気扇をフードの中などに取付け、調理用のコ
ンロを空だきすると温度が高くなり、熱動体１０
１が溶断してしまうことがあり、この場合熱動体
を取りよせ交換しなければならないためこの間換
気扇が使用できないという欠点があつた。 A conventional ventilation fan of this kind is constructed as shown in FIGS. 1 and 2, and when a thermal body 101 provided in the ventilation fan body is fused due to heating, an actuator spring 102 rotates an actuator 103.
The switch connecting rod 104 comes off from the connecting plate 105,
The shutter 107 was closed via the connecting plate 105 by the force of the spring 106, but when this ventilation fan is installed inside the hood and the cooking stove is left empty, the temperature rises and the thermal body 10
1 may melt, and in this case, the heat-moving body must be removed and replaced, resulting in the disadvantage that the ventilation fan cannot be used during this time.
本考案は上記従来の欠点を解消するもので、以
下にその実施例を第３図〜第５図にもとづいて説
明する。 The present invention solves the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to FIGS. 3 to 5.
図において、１は室内側および室外側を開口し
た換気扇枠体であり、内部に羽根車３と、この羽
根車３を駆動する電動機２を配設している。前記
換気扇枠体１の室内側で、かつ羽根車３の外方に
はオリフイス５が設けられている。また、換気扇
枠体１の室外側には、その開口部を開閉する複数
のシヤツター６をピン７により回転自在に設けて
いる。そして前記複数のシヤツター６は連結板８
によつて連結されている。換気扇枠体１の一部に
は電動機２の運転を制御するスイツチ９が取り付
けてあり、このスイツチ９にはスイツチワイヤー
１０が結合されている。前記連結板８には作動子
１１を枢支部材１９で回転自在に取付けてあり、
この作動子１１は凸部１２を有し、この凸部１２
で連結板８の凹部１３の開放部をふさぐようにす
るとともに、この凸部１２の開放部をふさぐ部分
にワイヤー１０の一端を連結している。前記作動
子１１は作動スプリング１４により回転力を与え
られており、熱により変形する弾性体のバイメタ
ルのストツパー１５の先端を作動子１１に当接さ
せて、作動子１１の回転を規制させている。なお
図中の１６はスイツチ９を操作する引きひもで、
１７は連結板８を介してシヤツター６を閉じさせ
るシヤツタースプリングである。 In the figure, reference numeral 1 denotes a ventilation fan frame with openings on the indoor side and the outdoor side, and an impeller 3 and an electric motor 2 for driving the impeller 3 are disposed inside. An orifice 5 is provided on the indoor side of the ventilation fan frame 1 and outside the impeller 3. Further, on the outdoor side of the ventilation fan frame 1, a plurality of shutters 6 for opening and closing the openings are rotatably provided with pins 7. The plurality of shutters 6 are connected to a connecting plate 8.
connected by. A switch 9 for controlling the operation of the electric motor 2 is attached to a part of the ventilation fan frame 1, and a switch wire 10 is connected to the switch 9. An actuator 11 is rotatably attached to the connecting plate 8 with a pivot member 19,
This actuator 11 has a convex portion 12, and this convex portion 12
The opening of the concave portion 13 of the connecting plate 8 is closed, and one end of the wire 10 is connected to the portion of the convex portion 12 that closes the opening. The actuating element 11 is given a rotational force by an actuating spring 14, and the tip of a bimetallic stopper 15, which is an elastic body deformed by heat, is brought into contact with the actuating element 11 to restrict rotation of the actuating element 11. . In addition, 16 in the figure is a pull cord that operates switch 9.
A shutter spring 17 closes the shutter 6 via the connecting plate 8.
上記構成において、換気扇を運転する場合は、
引きひも１６を引き、スイツチ９を操作すると電
動機２により羽根車３が駆動されるとともに、ス
イツチ９に連結されたワイヤー１０、連結板８を
介してシヤツタースプリング１７の力に抗してシ
ヤツター６が回動し、換気が行なわれる。次に換
気扇の運転中に火災が発生し、換気扇枠体１内が
高温になるとストツパー１５が変形し、先端が作
動子１１よりはずれ、作動子１１が回転し、凸部
１２により連結板８の凹部１３の開部を閉じてい
たのがとかれ、ワイヤー１０が連結板８より外
れ、シヤツタースプリング１７によりシヤツター
６は閉じる。また火災によらなくてもコンロの空
だきなどにより換気扇枠体１の内部が高温になつ
た場合も同様にシヤツターも閉じるが、この場合
は正常な状態に即復帰させる必要があり、この場
合、換気扇枠体１を常温にするとストツパー１５
は元の状態になるので、ストツパー１５の先端を
持上げ、作動子１１を回転させることにより元の
状態に連結板８とスイツチワイヤー１０を連結さ
せることができ、ふたたび換気扇を使用すること
ができる。 In the above configuration, when operating the ventilation fan,
When the pull string 16 is pulled and the switch 9 is operated, the impeller 3 is driven by the electric motor 2, and the shutter 6 is moved against the force of the shutter spring 17 via the wire 10 connected to the switch 9 and the connecting plate 8. rotates to provide ventilation. Next, when a fire occurs while the ventilation fan is in operation and the inside of the ventilation fan frame 1 becomes high temperature, the stopper 15 deforms, its tip comes off from the actuator 11, the actuator 11 rotates, and the convex part 12 causes the connecting plate 8 to close. The opening of the recess 13 is released, the wire 10 is removed from the connecting plate 8, and the shutter 6 is closed by the shutter spring 17. In addition, even if there is no fire, the shutter will close in the same way if the inside of the ventilation fan frame 1 becomes hot due to dry heating of the stove, etc., but in this case, it is necessary to immediately return to the normal state, and in this case, When the ventilation fan frame 1 is brought to room temperature, the stopper 15
is returned to its original state, so by lifting the tip of the stopper 15 and rotating the actuator 11, the connecting plate 8 and the switch wire 10 can be connected to their original state, and the ventilation fan can be used again.
このように本考案によれば、火災が発生し、枠
体内は高温になつたときはシヤツターを閉じ、火
災の延焼を防ぐことができ、また火災以外の熱で
シヤツターが閉じた場合はすみやかに元の正常な
状態にし再使用することができる効果を奏する。 In this way, according to the present invention, when a fire occurs and the temperature inside the frame becomes high, the shutter can be closed to prevent the fire from spreading, and if the shutter is closed due to heat other than the fire, it can be closed quickly. It has the effect of being able to be returned to its original normal state and reused.
第１図は従来例の換気扇の断面図、第２図は従
来例の連結板部分の拡大正面図、第３図は本考案
の一実施例における換気扇の断面図、第４図は同
連結板部分の拡大断面図、第５図は熱によりスト
ツパーが外れ、シヤツター６が閉じた状態を示す
断面図である。
１……換気扇枠体、２……電動機、３……羽根
車、６……シヤツター、８……連結板、９……ス
イツチ、１０……ワイヤー、１１……作動子、１
４……作動子スプリング、１５……バイメタルの
ストツパー。
Fig. 1 is a sectional view of a conventional ventilation fan, Fig. 2 is an enlarged front view of a connecting plate portion of a conventional example, Fig. 3 is a sectional view of a ventilation fan in an embodiment of the present invention, and Fig. 4 is a sectional view of the same connecting plate. FIG. 5 is an enlarged sectional view of a portion showing a state in which the stopper is removed due to heat and the shutter 6 is closed. 1... Ventilation fan frame, 2... Electric motor, 3... Impeller, 6... Shutter, 8... Connection plate, 9... Switch, 10... Wire, 11... Operator, 1
4... Actuator spring, 15... Bimetal stopper.
Claims (1)
と室外側を開口した換気扇枠体と、この換気扇枠
体の室外側開口部に開閉自在に設けられたシヤツ
ターと、このシヤツターと可動的に連結した連結
板と、この連結板を上に引き上げてシヤツターを
閉じるシヤツタースプリングと、前記連結板と連
結され、シヤツターを開閉させるスイツチと、前
記連結板とスイツチとの連結を行うため、連結板
に回転自在に取付けた作動子と、上記連結板とス
イツチの連結を解除させる方向に動かせる作動子
スプリングと、これを制限するためのバイメタル
のストツパーとを有し、高温時にはストツパーが
変形し、作動子の固定を解除させることを特徴と
する換気扇。 A ventilation fan frame that has an electric motor that drives an impeller inside and has an opening on the indoor and outdoor sides, a shutter that can be opened and closed at the outdoor opening of the ventilation fan frame, and a shutter that is movable with the shutter. A connected connecting plate, a shutter spring that pulls up the connecting plate to close the shutter, a switch connected to the connecting plate to open and close the shutter, and a connecting plate for connecting the connecting plate and the switch. It has an actuator that is rotatably attached to the switch, an actuator spring that can be moved in a direction to release the connection between the connecting plate and the switch, and a bimetallic stopper that restricts this.When the temperature is high, the stopper deforms and becomes activated. A ventilation fan characterized by releasing the fixation of the child.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP787181U JPS6143164Y2 (en) | 1981-01-22 | 1981-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP787181U JPS6143164Y2 (en) | 1981-01-22 | 1981-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57120934U JPS57120934U (en) | 1982-07-27 |
| JPS6143164Y2 true JPS6143164Y2 (en) | 1986-12-06 |
Family
ID=29806051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP787181U Expired JPS6143164Y2 (en) | 1981-01-22 | 1981-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6143164Y2 (en) |
-
1981
- 1981-01-22 JP JP787181U patent/JPS6143164Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57120934U (en) | 1982-07-27 |
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