JPS59154639U - Darkroom structure of scattered light smoke detector - Google Patents
Darkroom structure of scattered light smoke detectorInfo
- Publication number
- JPS59154639U JPS59154639U JP4787883U JP4787883U JPS59154639U JP S59154639 U JPS59154639 U JP S59154639U JP 4787883 U JP4787883 U JP 4787883U JP 4787883 U JP4787883 U JP 4787883U JP S59154639 U JPS59154639 U JP S59154639U
- Authority
- JP
- Japan
- Prior art keywords
- scattered light
- smoke
- smoke detector
- darkroom structure
- light smoke
- 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.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図従来例を示した断面説明図、第２図は本考案の一
実施例を示した断面説明図、第３図は第２図の実施例に
おける円錐頭頂部に形成した小孔を取り出して示した断
面図である。
１：感知器本体、２：カバー、２ａ：外カバー、２ｂ：
内カバー、３：暗室、４：ホルダー、５：発光素子、６
：受光素子、７：検煙領域、８：円錐部、１０：煙流入
口、１２：小孔、１３：ビン挿入孔、１４：スポンジ、
１５：円錐孔。Fig. 1 is an explanatory cross-sectional view showing a conventional example, Fig. 2 is an explanatory cross-sectional view showing an embodiment of the present invention, and Fig. 3 is an explanatory cross-sectional view showing an embodiment of the present invention. FIG. 1: Sensor body, 2: Cover, 2a: Outer cover, 2b:
Inner cover, 3: Darkroom, 4: Holder, 5: Light emitting element, 6
: Light receiving element, 7: Smoke detection area, 8: Cone, 10: Smoke inlet, 12: Small hole, 13: Bottle insertion hole, 14: Sponge,
15: Conical hole.
Claims (1)
の散乱光を受光素子で検出する散乱光式煙感知器におい
て、 前記検煙領域の下側に位置する底部を円錐状に形成し、
該円錐の頭頂部に小孔を設けたことを特徴とする散乱光
式煙感知器の暗室構造。[Scope of Claim for Utility Model Registration] In a scattered light smoke detector in which a light receiving element detects scattered light from a light emitting element caused by smoke flowing into a smoke detection area in a dark room, the smoke sensor is located below the smoke detection area. The bottom part is shaped like a cone,
A darkroom structure of a scattered light type smoke detector characterized in that a small hole is provided at the top of the cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4787883U JPS59154639U (en) | 1983-03-31 | 1983-03-31 | Darkroom structure of scattered light smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4787883U JPS59154639U (en) | 1983-03-31 | 1983-03-31 | Darkroom structure of scattered light smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59154639U true JPS59154639U (en) | 1984-10-17 |
Family
ID=30178419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4787883U Pending JPS59154639U (en) | 1983-03-31 | 1983-03-31 | Darkroom structure of scattered light smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59154639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259496A (en) * | 1988-04-08 | 1989-10-17 | Matsushita Electric Works Ltd | Structure for photo-electric type smoke sensor |
| JP2010040006A (en) * | 2008-08-08 | 2010-02-18 | Sharp Corp | Photoelectric smoke sensor and lighting apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54159279A (en) * | 1978-06-06 | 1979-12-15 | Matsushita Electric Works Ltd | Photoelectric type smoke detector |
-
1983
- 1983-03-31 JP JP4787883U patent/JPS59154639U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54159279A (en) * | 1978-06-06 | 1979-12-15 | Matsushita Electric Works Ltd | Photoelectric type smoke detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259496A (en) * | 1988-04-08 | 1989-10-17 | Matsushita Electric Works Ltd | Structure for photo-electric type smoke sensor |
| JP2010040006A (en) * | 2008-08-08 | 2010-02-18 | Sharp Corp | Photoelectric smoke sensor and lighting apparatus |
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