JPH0444995B2 - - Google Patents
Info
- Publication number
- JPH0444995B2 JPH0444995B2 JP61166798A JP16679886A JPH0444995B2 JP H0444995 B2 JPH0444995 B2 JP H0444995B2 JP 61166798 A JP61166798 A JP 61166798A JP 16679886 A JP16679886 A JP 16679886A JP H0444995 B2 JPH0444995 B2 JP H0444995B2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- shutter
- fire detection
- fire
- shape memory
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 20
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 11
- 239000000779 smoke Substances 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、火災の発生を検出する火災感知装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fire detection device for detecting the occurrence of a fire.
（従来技術）
従来の火災感知装置は、火災感知用センサーが
むきだしの状態で設置されていた。また、従来は
誤動作を防止するため電気的な種々のセンサーを
組合せて使用していた。(Prior Art) In conventional fire detection devices, the fire detection sensor was installed in an exposed state. Furthermore, conventionally, various electrical sensors have been used in combination to prevent malfunctions.
（発明が解決しようとする問題点）
しかしながら、火災感知用センサーがむきだし
の状態で設置されていると、いたずらされたり、
美感が悪くなつたりする問題点があつた。(Problem to be solved by the invention) However, if the fire detection sensor is installed in an exposed state, it may be tampered with or
There was a problem that the aesthetic appearance deteriorated.
本発明の目的は、美感を害さずに、いたずらさ
れずに設置でき、且つ火災か否かの判断を二重に
行うことができる火災感知装置を提供することに
ある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a fire detection device that can be installed without spoiling the aesthetics or being tampered with, and that can double-check whether there is a fire or not.
（問題点を解決するための手段）
上記の目的を達成するための本発明の構成を実
施例に対応する第１図乃至第３図を参照して説明
すると、本発明はセンサー収容室１を有する容器
２と、前記センサー収容室１内に設置された火災
感知用センサー３と、該火災感知センサー３を収
容した前記センサー収容室１の開口部１Ａは常時
は閉塞しているシヤツターと、所定の温度以上の
温度で前記シヤツター４を開く形状記憶合金ばね
６とからなる。(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained with reference to FIGS. 1 to 3 corresponding to embodiments. the fire detection sensor 3 installed in the sensor housing chamber 1; the opening 1A of the sensor housing chamber 1 housing the fire detection sensor 3 is normally closed; and a shape memory alloy spring 6 that opens the shutter 4 at a temperature higher than .
（作用）
このような火災感知装置は、通常はシヤツター
４が閉じた状態にあり、火災感知用センサー３が
見えない状態になつている。かかる状態で火災が
発生して所定の温度に達すると、形状記憶合金ば
ね６が作動し、その力でシヤツター４が開かれ、
火災感知用センサー３がむき出しの状態となり、
火災の検出をし得るようになる。また、著しい温
度上昇を伴わない単なる煙のみのときには、形状
記憶合金ばね６が作動せず、誤検出を防止する。(Function) In such a fire detection device, the shutter 4 is normally in a closed state, and the fire detection sensor 3 is not visible. When a fire breaks out under such conditions and reaches a predetermined temperature, the shape memory alloy spring 6 is activated and the shutter 4 is opened by its force.
The fire detection sensor 3 is exposed,
It becomes possible to detect fire. Further, when there is only smoke without a significant temperature rise, the shape memory alloy spring 6 does not operate, thereby preventing false detection.
（実施例）
以下、本発明の実施例を第１図乃至第３図を参
照して説明する。本実施例の火災感知装置は、セ
ンサー収容室１を有する容器２を備え、センサー
収容室２内には例えば炎火災等の電気的火災感知
センサー３が設置されている。センサー収容室１
の開口部１Ａは常時はシヤツター４で閉塞されて
いる。シヤツター４はガイド５で摺動自在に支持
されている。シヤツター４に隣接して容器２の前
面には形状記憶合金ばね６が設置され、その一端
は容器２に固定され、他端はシヤツター４に固定
されている。形状記憶合金ばね６には、所定の温
度（例えば50℃）に達すると、収縮が起こるよう
に形状記憶がなされている。この形状記憶合金ば
ね６を収容できるように容器２には凹部７が設け
られている。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. The fire detection device of this embodiment includes a container 2 having a sensor storage chamber 1, and an electrical fire detection sensor 3, such as a flame fire sensor, is installed in the sensor storage chamber 2. Sensor storage chamber 1
The opening 1A is normally closed by the shutter 4. The shutter 4 is slidably supported by a guide 5. A shape memory alloy spring 6 is installed on the front surface of the container 2 adjacent to the shutter 4, and one end of the spring 6 is fixed to the container 2 and the other end is fixed to the shutter 4. The shape memory alloy spring 6 has shape memory so that it contracts when it reaches a predetermined temperature (for example, 50° C.). A recess 7 is provided in the container 2 so that the shape memory alloy spring 6 can be accommodated therein.
このような装置は、通常はシヤツター４が閉じ
られていてセンサー３が隠されている。火災が発
生して所定温度以上の温度に温度上昇があると、
形状記憶合金ばね６が作動して収縮し、その時の
力でシヤツター４が引かれ、センサー収容室１が
開き、センサー３が火災の検出をし得る状態にな
る。温度の著しい上昇を伴わない、単なる魚焼き
等の煙の場合には、形状記憶合金ばね６は作動せ
ず、シヤツター４は開かない。 In such a device, the shutter 4 is usually closed and the sensor 3 is hidden. If a fire occurs and the temperature rises above the specified temperature,
The shape memory alloy spring 6 is actuated and contracts, and the force at that time pulls the shutter 4, opens the sensor housing chamber 1, and puts the sensor 3 in a state where it can detect a fire. In the case of simple smoke from grilled fish or the like without a significant rise in temperature, the shape memory alloy spring 6 does not operate and the shutter 4 does not open.
このような火災感知装置は、自動火災報知設備
や、自動消火装置の火災検出手段として使用でき
る。 Such a fire detection device can be used as a fire detection means for automatic fire alarm equipment or automatic fire extinguishing equipment.
（発明の効果）
以上説明したように本発明に係る火災感知装置
は、センサーをセンサー収容室内に納め、その開
口部を常時はシヤツターで閉塞した構造としたの
で、センサーがむき出しにならず、美感が害され
ず、またいたずらされるのを防止することができ
る。更に、シヤツターは所定温度以上の温度が加
わつたとき形状記憶合金ばねの作用で開くように
しているので、著しい温度上昇を伴わない単なる
料理時の煙のみのときには該シヤツターは開か
ず、誤動作を防止することができ、火災感知装置
の性能を向上させることができ、信頼性を向上さ
せることができる。(Effects of the Invention) As explained above, the fire detection device according to the present invention has a structure in which the sensor is housed in the sensor storage chamber and the opening thereof is always closed with a shutter, so that the sensor is not exposed and is aesthetically pleasing. can be prevented from being harmed or tampered with. Furthermore, since the shutter is designed to open by the action of a shape memory alloy spring when a temperature higher than a predetermined temperature is applied, the shutter will not open when there is only smoke from cooking without a significant temperature rise, thus preventing malfunction. The performance of the fire detection device can be improved, and the reliability can be improved.
第１図は本発明に係る装置の一実施例の縦断面
図、第２図は第１図のＸ−Ｘ線断面図、第３図は
第１図の正面図である。
１……センサー収容室、１Ａ……開口部、２…
…容器、３……センサー、４……シヤツター、６
……形状記憶合金ばね。
FIG. 1 is a longitudinal sectional view of one embodiment of the apparatus according to the present invention, FIG. 2 is a sectional view taken along the line X--X of FIG. 1, and FIG. 3 is a front view of FIG. 1. 1...Sensor storage chamber, 1A...Opening, 2...
...Container, 3...Sensor, 4...Shutter, 6
...Shape memory alloy spring.
Claims (1)
ー収容室内に設置された火災感知用センサーと、
該火災感知用センサーを収容した前記センサー収
容室の開口部を常時は閉塞しているシヤツター
と、所定の温度以上の温度で前記シヤツターを開
く形状記憶合金ばねとからなる火災感知装置。1. A container having a sensor storage chamber, a fire detection sensor installed in the sensor storage chamber,
A fire detection device comprising a shutter that normally closes an opening of the sensor storage chamber housing the fire detection sensor, and a shape memory alloy spring that opens the shutter at a temperature higher than a predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16679886A JPS6324492A (en) | 1986-07-17 | 1986-07-17 | Fire sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16679886A JPS6324492A (en) | 1986-07-17 | 1986-07-17 | Fire sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6324492A JPS6324492A (en) | 1988-02-01 |
| JPH0444995B2 true JPH0444995B2 (en) | 1992-07-23 |
Family
ID=15837876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16679886A Granted JPS6324492A (en) | 1986-07-17 | 1986-07-17 | Fire sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324492A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5654787B2 (en) * | 2010-06-30 | 2015-01-14 | 富士フイルム株式会社 | Radiographic imaging display method and system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133797A (en) * | 1976-04-30 | 1977-11-09 | Matsushita Electric Works Ltd | Smoke detector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148169U (en) * | 1982-03-31 | 1983-10-05 | 株式会社トーキン | door device |
| JPS59132082U (en) * | 1983-02-21 | 1984-09-04 | オムロン株式会社 | door opening/closing device |
| JPS60117988U (en) * | 1984-01-20 | 1985-08-09 | 東北金属工業株式会社 | door opening/closing device |
-
1986
- 1986-07-17 JP JP16679886A patent/JPS6324492A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133797A (en) * | 1976-04-30 | 1977-11-09 | Matsushita Electric Works Ltd | Smoke detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6324492A (en) | 1988-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4548274A (en) | Automatically opening decorative fire extinguisher cover | |
| US4001805A (en) | Sound activated alarm system | |
| GB2395337A (en) | Wall mounted warning unit | |
| US9082275B2 (en) | Alarm device for alerting hazardous conditions | |
| US5345219A (en) | Anti-theft alarm for displayed garments | |
| GB2255409A (en) | Audio intrusion detection system | |
| JPH09102084A (en) | System and method for decision of fire state by using different types of fire sensors | |
| ES499600A0 (en) | SECURITY INSTALLATION FOR REMOTE SURVEILLANCE AND ALARM-MA AGAINST THEFT | |
| EP2393071A2 (en) | Peripheral device that connects to home alarm systems and serves the global protection of an opening through magnetic switches and motion sensors | |
| JP4718844B2 (en) | Fire alarm | |
| CA2714643A1 (en) | Hazardous condition detector with hardware hush | |
| US4267549A (en) | Pull station protector | |
| JPH0444995B2 (en) | ||
| US5936532A (en) | Smoke and carbon monoxide detector with clock | |
| GB2303173A (en) | Computer Security Module | |
| US20100050535A1 (en) | Detector of attempt to break a lock, lock, door and alarm system comprising such a detector | |
| JPH0620164A (en) | Intrusion detector | |
| US1892330A (en) | Alarm switch | |
| FR2501879A1 (en) | DEVICE FOR THE PROTECTION OF PREMISES LIKE RESIDENCES | |
| US5677672A (en) | System and method for arming an alarm system when an occupant fails to turn the system on | |
| JP2006059278A (en) | Wall-mounted wire alarm | |
| US20040164862A1 (en) | Security alarm with remote triggering device | |
| EP0922423A1 (en) | Letterbox assembly | |
| US3686660A (en) | Showcase alarm system | |
| JP3312321B2 (en) | Fire detection method |