JPS5926474Y2 - Optical axis adjustment device for separate transmitted light type smoke detector - Google Patents
Optical axis adjustment device for separate transmitted light type smoke detectorInfo
- Publication number
- JPS5926474Y2 JPS5926474Y2 JP7736080U JP7736080U JPS5926474Y2 JP S5926474 Y2 JPS5926474 Y2 JP S5926474Y2 JP 7736080 U JP7736080 U JP 7736080U JP 7736080 U JP7736080 U JP 7736080U JP S5926474 Y2 JPS5926474 Y2 JP S5926474Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- transmitted light
- adjustment device
- axis adjustment
- smoke detector
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
【考案の詳細な説明】
この考案は、分離型の透過光式煙感知器に関し、特にそ
の光軸を調整するよ装置に関するものである。[Detailed Description of the Invention] This invention relates to a separate type transmitted light type smoke detector, and particularly to a device for adjusting its optical axis.
一般に分離型透過光式煙感知器は、赤外線などの不可視
光線を使用し、投光器と受光器を数十メートル離して、
比較的天井の高い劇場、体育館、トンネル、あるいは電
線やケーブルなどを埋設した共同溝などに設置され、火
災による煙を監視するものである。Separate transmitted light type smoke detectors generally use invisible light such as infrared light, and the emitter and receiver are placed several tens of meters apart.
They are installed in theaters with relatively high ceilings, gymnasiums, tunnels, or communal ditches with buried electric wires and cables to monitor smoke from fires.
このような分離型透過光式煙感知器においては、投光器
と受光器の光軸を一直線に調整して合わせる必要がある
が、通常、最も簡易な方法として、投光器に規準孔を設
け、相互の規準孔をのぞいて光軸を調整している。In such a separate transmitted light type smoke detector, it is necessary to align the optical axes of the emitter and receiver in a straight line, but usually the simplest method is to provide a reference hole in the emitter and align them with each other. The optical axis is adjusted by looking through the reference hole.
しかしながら、投光器及び受光器が壁面などに近接して
設置された場合、規準孔を直接のぞくことができず、光
軸調整を行なうのに困難をきたすという問題が生ずる。However, when the projector and receiver are installed close to a wall or the like, a problem arises in that it is not possible to directly look into the reference hole, making it difficult to adjust the optical axis.
この考案は、このような問題を解決するために考えられ
たものであって、以下この考案の実施例を図面に基づい
て詳細に説明する。This invention was devised to solve such problems, and embodiments of this invention will be described in detail below with reference to the drawings.
第１図はこの考案の分離型透過光式感知器の投・受光器
筐体１の断面図であって、内部に発光または受光などの
光電変換素子１１と光を集光するためのレンズ１２が具
備されている。FIG. 1 is a cross-sectional view of the projector/receiver housing 1 of the separated transmitted light sensor of this invention, in which there is a photoelectric conversion element 11 for emitting or receiving light, and a lens 12 for condensing light. is equipped.
筐体１の下部には、光軸を合わせるための規準孔１３が
設けられている。A reference hole 13 is provided in the lower part of the housing 1 for aligning the optical axis.
筐体１の後部には、規準孔１３を写す反射鏡体３が、磁
石または両面接着テープなどの支持部材４によって着脱
自在に取付けられている。A reflecting mirror 3 that reflects the reference hole 13 is removably attached to the rear of the housing 1 using a support member 4 such as a magnet or double-sided adhesive tape.
第２図は、投光器１及び受光器２を天井面５に設置した
状態を示すものである。FIG. 2 shows a state in which the projector 1 and the receiver 2 are installed on the ceiling surface 5. As shown in FIG.
投光器１が壁面６に近接して設置された場合、規準孔１
３を直接のぞくことができないので、投光器１の下方か
ら反射鏡体３を目視し、反射鏡体３に写った規準孔１３
を通して、受光器２が規準孔１３内に位置するように投
光器１を調整し、光軸を合せるのである。When the floodlight 1 is installed close to the wall surface 6, the reference hole 1
Since it is not possible to directly look into the reflector 3, the reference hole 13 reflected in the reflector 3 is visually observed from below the projector 1.
Through this, the projector 1 is adjusted so that the receiver 2 is located within the reference hole 13, and the optical axes are aligned.
なお、この光軸調整は、投光器１、受光器２の規準孔を
相互に目視しながら行なうのである。Note that this optical axis adjustment is performed while mutually visually observing the reference holes of the emitter 1 and the light receiver 2.
以上で説明したように、この考案の分離型透過光式煙感
知器の光軸調整装置は、投・受光器筐体の下部に設けら
れた規準孔を、筐体後部に着脱自在に取付けた反射鏡体
に写して目視できるように構成したので、直接規準孔を
目視できないような狭い場所に投・受光器を設置しても
、容易に投・受光器の光軸調整ができるという優れた作
用効果を奏するのである。As explained above, the optical axis adjustment device of the separated transmitted light type smoke detector of this invention has a reference hole provided at the bottom of the emitter/receiver housing that is removably attached to the rear of the housing. Since it is configured so that it can be seen visually by reflecting the image on the reflector, it is an excellent feature that allows the optical axis of the emitter and receiver to be easily adjusted even if the emitter and receiver are installed in a narrow place where the reference hole cannot be seen directly. It has an effect.
第１図は、この考案の分離型透過光式煙感知器の光軸調
整装置の実施例を示す投・受光器を筐体の断面図、第２
図は投光器を設置した状態を示す配置図である。
１・・・投・受光器筐体、１３・・・規準孔、３・・・
反射鏡体。Figure 1 is a sectional view of the housing of the emitter and receiver, showing an embodiment of the optical axis adjustment device of the separated type transmitted light type smoke detector of this invention;
The figure is a layout diagram showing a state in which the projector is installed. 1...Emitter/receiver housing, 13...Reference hole, 3...
reflective body.
Claims (1)
反射鏡体を上記投光器及び受光器筐体、またはその一方
に着脱自在に取付け、上記反射鏡体に写った規準孔を目
視して光軸調整を行なうように構成したことを特徴とす
る分離型透過光式煙感知器の光軸調整装置。A reference hole is provided in the emitter and receiver housings, a reflector that reflects the reference hole is removably attached to the emitter and receiver housing, or one of them, and the reference hole reflected in the reflector is visually observed. What is claimed is: 1. An optical axis adjustment device for a separate transmitted light type smoke detector, characterized in that the optical axis adjustment device is configured to adjust the optical axis using
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7736080U JPS5926474Y2 (en) | 1980-06-05 | 1980-06-05 | Optical axis adjustment device for separate transmitted light type smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7736080U JPS5926474Y2 (en) | 1980-06-05 | 1980-06-05 | Optical axis adjustment device for separate transmitted light type smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS575792U JPS575792U (en) | 1982-01-12 |
| JPS5926474Y2 true JPS5926474Y2 (en) | 1984-08-01 |
Family
ID=29439932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7736080U Expired JPS5926474Y2 (en) | 1980-06-05 | 1980-06-05 | Optical axis adjustment device for separate transmitted light type smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926474Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122855U (en) * | 1984-01-25 | 1985-08-19 | 松下電工株式会社 | Dimming smoke monitoring device |
-
1980
- 1980-06-05 JP JP7736080U patent/JPS5926474Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS575792U (en) | 1982-01-12 |
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