JPH0441434Y2 - - Google Patents
Info
- Publication number
- JPH0441434Y2 JPH0441434Y2 JP1984137177U JP13717784U JPH0441434Y2 JP H0441434 Y2 JPH0441434 Y2 JP H0441434Y2 JP 1984137177 U JP1984137177 U JP 1984137177U JP 13717784 U JP13717784 U JP 13717784U JP H0441434 Y2 JPH0441434 Y2 JP H0441434Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- transparent body
- wiping
- drive signal
- 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
- 230000003287 optical effect Effects 0.000 claims description 22
- 239000011521 glass Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
この考案は光学式火災感知器に関するもので、
特に光学部の清掃機能を有する減光式や輻射式の
光学式火災感知器に関するものである。[Detailed explanation of the invention] [Technical field] This invention relates to an optical fire detector.
In particular, the present invention relates to a dimming type or radiation type optical fire detector having a cleaning function for the optical part.
減光式煙感知器あるいは輻射式感知器などの光
学式火災感知器は、火災検出のため投光部や受光
部などの光学系を有している。このような光学式
火災感知器では、光学系のレンズやガラスなどの
透光体に塵埃が付着して汚染すると、透光体を透
過する光量が減少し、誤報あるいは失報を生じる
ようになる。このため定期点検などの際に光学式
火災感知器の光学系を点検・清掃し、誤報や失報
の発生を防止している。
Optical fire detectors such as dimming type smoke detectors and radiation type detectors have optical systems such as a light projector and a light receiver for fire detection. In such optical fire detectors, if the transparent body such as the lens or glass of the optical system is contaminated by dust, the amount of light that passes through the transparent body will decrease, resulting in false alarms or missing alarms. . For this reason, the optical system of optical fire detectors is inspected and cleaned during periodic inspections to prevent false alarms and missed alarms.
ところで、劇場のホール、倉庫や体育館などの
天井のように高所に設置された光学式火災感知器
を清掃しようとすると、感知器毎に足場を組まな
ければならず、手間がかかるとともに費用が嵩む
問題がある。
By the way, when trying to clean optical fire detectors installed in high places such as the ceilings of theater halls, warehouses, and gymnasiums, scaffolding must be erected for each detector, which is time-consuming and expensive. There is a problem of bulk.
また高速道路などのトンネルに設けられた光学
式火災感知器を清掃する場合には、走行車両によ
る事故を防止するため、交通規制を行う必要があ
るなどの問題がある。 Furthermore, when cleaning optical fire detectors installed in tunnels such as highways, there are problems such as the need to implement traffic regulations to prevent accidents caused by moving vehicles.
この考案は上記の点にかんがみ、火災検出のた
め、レンズあるいはガラスなどの透光体を有する
光学系を用いた光学式火災感知器において、上記
透光体の払拭手段と、上記透光体を挟んで対向配
置した投光器と受光器を有し、投光器から発せら
れる光の受光器の受光出力が所定値以下に低下し
た時に駆動信号を出力する測定手段と、上記測定
手段の駆動信号により動作する駆動手段とを設
け、上記駆動手段によつて上記透光体を回転ある
いは上記払拭手段を動作させるように構成したこ
とを特徴とするものである。
In view of the above points, this invention is an optical fire detector that uses an optical system having a transparent body such as a lens or glass for fire detection, and includes a means for wiping the transparent body, and a means for wiping the transparent body. It has a light emitter and a light receiver that are arranged opposite to each other, and a measuring means that outputs a drive signal when the light receiving output of the light emitted from the light emitter by the light receiver falls below a predetermined value, and is operated by the drive signal of the measuring means. The present invention is characterized in that a driving means is provided, and the driving means rotates the transparent body or operates the wiping means.
この考案による光学式火災感知器は、上記の特
徴ある構成を有することにより、投光器から発せ
られた光の受光器による受光出力が透光体の汚染
により低下して所定値以下になると、モータなど
の駆動装置を動作させ、透光体を回転させて固定
されたワイパや刷毛などの払拭手段により、ある
いは可動のワイパや刷毛などの払拭手段を動作さ
せ、これにより透光体の表面に付着した塵埃など
を除去するようにしているので、清掃しようとす
る際に、足場を組んだり交通規制を行つたりする
ことなく、光学系が汚染した時に光学系の清掃を
自動的に行うことができるものである。
The optical fire detector according to this invention has the above-mentioned characteristic configuration, so that when the light receiving output of the light emitted from the projector by the receiver decreases due to contamination of the transparent body and falls below a predetermined value, the motor, etc. The driving device is operated to rotate the light-transmitting body and use a fixed wiping means such as a wiper or brush, or a movable wiping means such as a wiper or brush is operated, thereby removing any particles that have adhered to the surface of the light-transmitting body. Since dust is removed, the optical system can be automatically cleaned when it becomes contaminated without having to set up scaffolding or restrict traffic. It is something.
以下、この考案による光学式火災感知器の１実
施例を図面により説明する。
Hereinafter, one embodiment of the optical fire detector according to this invention will be described with reference to the drawings.
第１図はこの考案による減光式煙感知器である
いは輻射式感知器の１実施例の要部断面図で、１
は図示しない発光素子や発光回路などを収容する
投光部あるいは受光素子や検出回路などを収容す
る受光部の筐体、２は筐体１の前面開口部に設け
られたガイドレール、３はガイドレール２に挟持
され環状回転板、４は回転板３の窓部３１を覆う
ように取り付けられるガラスあるいはレンズなど
の透光体、５は透光体４を回転体３に固定するた
めの固定用筒体、５１は筒体５の端部の円周上に
設けられたラツク歯、６は筐体１内に固定され、
図示しない制御装置などによつて回転制御される
駆動手段としてのモータ、７はモータ６の回転軸
に固定され筒体５のラツク歯５１と噛合する歯
車、８は筐体１に固定された払拭手段としての固
定ワイパである。 Figure 1 is a cross-sectional view of the main parts of an embodiment of a dimming type smoke detector or a radiation type smoke detector according to this invention.
2 is a housing of a light emitting unit that houses a light emitting element, a light emitting circuit, etc. (not shown) or a light receiving unit that houses a light receiving element, a detection circuit, etc.; 2 is a guide rail provided in the front opening of the housing 1; and 3 is a guide. An annular rotating plate held between the rails 2; 4 a transparent body such as glass or a lens attached to cover the window 31 of the rotating plate 3; 5 a fixing device for fixing the transparent body 4 to the rotating body 3; A cylindrical body, 51 is a rack tooth provided on the circumference of the end of the cylindrical body 5, 6 is fixed within the housing 1,
A motor as a driving means whose rotation is controlled by a control device (not shown), 7 is a gear fixed to the rotating shaft of the motor 6 and meshes with the rack teeth 51 of the cylinder 5, and 8 is a wiper fixed to the housing 1. It is a fixed wiper as a means.
２４と２５は、透光体４の汚染状況を測定する
ために、透光体４を挟んで対向配置して設けた投
光器と受光器で、受光器２５の受光出力が透光体
４の汚染により所定値以下に低下すると図示しな
い回路が制御装置に駆動信号を出力する。 Reference numerals 24 and 25 denote a light emitter and a light receiver, which are arranged opposite to each other with the light transmitting body 4 in between, in order to measure the contamination state of the light transmitting body 4. When the voltage drops below a predetermined value, a circuit (not shown) outputs a drive signal to the control device.
第２図は減光式煙感知器の他の実施例の斜視図
で、１１は投光部、１２は受光部、１３はレンズ
あるいはガラスなどの透光体、１４は投光部１１
ならびに受光部１２内に設けられたモータなどの
駆動手段によつて駆動される可動ワイパである。
なお、透光体１３の汚染状況測定用の投光器２４
と受光器２５は図示を省略しているが、前記実施
例と同様に透光体１３を挟んで対向して設けられ
る。 FIG. 2 is a perspective view of another embodiment of the dimming type smoke detector, in which 11 is a light projecting part, 12 is a light receiving part, 13 is a transparent body such as a lens or glass, and 14 is a light projecting part 11.
Also, it is a movable wiper driven by a driving means such as a motor provided in the light receiving section 12.
In addition, a light projector 24 for measuring the contamination state of the transparent body 13 is used.
Although not shown, the light receiver 25 and the light receiver 25 are provided facing each other with the transparent body 13 in between, as in the previous embodiment.
次に各実施例の動作について説明する。 Next, the operation of each embodiment will be explained.
ガラスのレンズなどの透光体４，１３が塵埃な
どによつて汚染され、投光器２４から発せられた
光による受光器２５の受光出力が所定値以下に低
下すると、筐体１内などに設けられた図示しない
回路が駆動信号を出力し、この駆動信号により図
示しない制御装置が動作してモータ６などの駆動
手段が通電される。 If the light-transmitting bodies 4 and 13 such as glass lenses become contaminated with dust and the like, and the light receiving output of the light receiver 25 due to the light emitted from the projector 24 decreases below a predetermined value, a A not-shown circuit outputs a drive signal, and this drive signal causes a not-shown control device to operate and drive means such as the motor 6 to be energized.
これにより第１図の実施例ではモータ６が回転
し、歯車７とラツク歯５１の作用により透光体４
が回転体３，筒体５とともに回転し、透光体４上
に付着した塵埃が固定ワイパ８により除去され
る。 As a result, the motor 6 rotates in the embodiment shown in FIG.
rotates together with the rotating body 3 and the cylindrical body 5, and dust attached to the transparent body 4 is removed by the fixed wiper 8.
また第２図の実施例では、投光部１１ならびに
受光部１２内に内蔵された図示しないモータによ
り可動ワイパ１４が左右に動き、透光体１３上に
付着した塵埃が除去される。 Further, in the embodiment shown in FIG. 2, the movable wiper 14 is moved left and right by motors (not shown) built in the light projecting section 11 and the light receiving section 12, and dust attached to the transparent body 13 is removed.
この考案によれば、足場を組んだり交通規制を
行つたりすることなく、光学系が汚染状態となつ
た時に自動的に清掃を行うことができる光学式火
災感知器が得られる。
According to this invention, an optical fire detector can be obtained that can automatically clean the optical system when it becomes contaminated without erecting scaffolding or regulating traffic.
第１図、第２図はこの考案による光学式火災感
知器のそれぞれ異なる実施例で、第１図は減光式
あるいは輻射式の感知器の１実施例の要部断面
図、第２図は減光式煙感知器の１実施例の斜視図
である。
１……投光部あるいは受光部の筐体、１１……
投光部、１２……受光部、３……環状回転体、
４，１３……透光体、６……駆動手段、８，１４
……払拭手段、２４……測定手段の投光器、２５
……測定手段の受光器。
Figures 1 and 2 show different embodiments of the optical fire detector according to this invention. Figure 1 is a sectional view of the essential parts of one embodiment of a dimming type or radiation type detector, and Figure 2 is FIG. 1 is a perspective view of one embodiment of a dimming type smoke detector. 1... Housing of light emitter or light receiver, 11...
Light projecting section, 12... Light receiving section, 3... Annular rotating body,
4, 13... Translucent body, 6... Drive means, 8, 14
... Wiping means, 24 ... Floodlight of measuring means, 25
...A light receiver for measurement means.
Claims (1)
学系を用いた光学式火災感知器において、上記透
光体の払拭手段と、上記透光体を挟んで対向配置
した投光器と受光器を有し、投光器から発せられ
る光の受光器の受光出力が所定値以下に低下した
時に駆動信号を出力する測定手段と、上記測定手
段の駆動信号により動作する駆動手段とを設け、
上記駆動手段によつて上記透光体を回転あるいは
上記払拭手段を動作させるように構成してなるこ
とを特徴とする光学式火災感知器。 An optical fire detector using an optical system having a light transmitting body such as a lens or glass, which comprises a means for wiping the light transmitting body, a light emitter and a light receiver arranged opposite to each other with the light transmitting body in between, A measuring means for outputting a drive signal when the light receiving output of the light receiver of the light emitted from the light receiver decreases below a predetermined value, and a driving means operated by the drive signal of the measuring means,
An optical fire detector characterized in that the drive means rotates the transparent body or operates the wiping means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984137177U JPH0441434Y2 (en) | 1984-09-12 | 1984-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984137177U JPH0441434Y2 (en) | 1984-09-12 | 1984-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155788U JPS6155788U (en) | 1986-04-15 |
| JPH0441434Y2 true JPH0441434Y2 (en) | 1992-09-29 |
Family
ID=30695591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984137177U Expired JPH0441434Y2 (en) | 1984-09-12 | 1984-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441434Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9446111B2 (en) | 2009-04-29 | 2016-09-20 | Ganeden Biotech, Inc. | Inactivated bacterial cell formulation |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650076Y2 (en) * | 1988-05-19 | 1994-12-14 | 能美防災株式会社 | Fire detector stain reduction device |
| JP6767073B2 (en) * | 2016-01-08 | 2020-10-14 | ホーチキ株式会社 | Fire hydrant device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56392U (en) * | 1979-06-16 | 1981-01-06 | ||
| JPS5751142U (en) * | 1980-09-09 | 1982-03-24 | ||
| JPS5817281U (en) * | 1981-07-29 | 1983-02-02 | スズキ株式会社 | Truck side member |
-
1984
- 1984-09-12 JP JP1984137177U patent/JPH0441434Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56392U (en) * | 1979-06-16 | 1981-01-06 | ||
| JPS5751142U (en) * | 1980-09-09 | 1982-03-24 | ||
| JPS5817281U (en) * | 1981-07-29 | 1983-02-02 | スズキ株式会社 | Truck side member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9446111B2 (en) | 2009-04-29 | 2016-09-20 | Ganeden Biotech, Inc. | Inactivated bacterial cell formulation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6155788U (en) | 1986-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4027367C1 (en) | Deposit detector for outer surface of pane - uses radiation source and receiver at right angles to pane esp. windscreen to detect rain drops | |
| US4456829A (en) | Non-contact sensor, system and method with particular utility for measurement of road profile | |
| GB2159271A (en) | Surface flaw detecting method and apparatus | |
| US5808734A (en) | Method and apparatus for detecting impurities on plate surface | |
| JPH0441434Y2 (en) | ||
| US4826316A (en) | Radiation detection apparatus | |
| US3476947A (en) | Optical intrusion detection system using dual beam peripheral scanning | |
| JPH10170653A (en) | Distance measuring device | |
| US5004922A (en) | Optical fiber scanning system for heat sensing | |
| JPH02281132A (en) | Contamination detector | |
| CN209789760U (en) | side sweeping assembly and cleaning robot | |
| JP5544847B2 (en) | Mobile photometer | |
| US4721970A (en) | End of film detection device | |
| JPH09212758A (en) | Cleaning device for monitor device | |
| JP2799478B2 (en) | Fire detector inspection device | |
| JP2000019014A (en) | Infrared ray monitoring device | |
| SU708383A1 (en) | Smoke presense detector | |
| JP2001101574A (en) | Vehicle detector using laser sensor | |
| WO2023042985A1 (en) | Automatic verification standard filter for multi-lane soot remote measurement device | |
| JPS62135116U (en) | ||
| JPH0348524Y2 (en) | ||
| JPH1096791A (en) | Raindrop detecting device | |
| JPS5852520Y2 (en) | smoke detection device | |
| JPH048351Y2 (en) | ||
| JP2601353Y2 (en) | Distance measuring device |