JPS59154639U - Darkroom structure of scattered light smoke detector - Google Patents

Darkroom structure of scattered light smoke detector

Info

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
Application number
JP4787883U
Other languages
Japanese (ja)
Inventor
哲也 長島
Original Assignee
ホーチキ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ホーチキ株式会社 filed Critical ホーチキ株式会社
Priority to JP4787883U priority Critical patent/JPS59154639U/en
Publication of JPS59154639U publication Critical patent/JPS59154639U/en
Pending legal-status Critical Current

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

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】 暗室内の検煙領域に流入した煙による発光素子からの光
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.
JP4787883U 1983-03-31 1983-03-31 Darkroom structure of scattered light smoke detector Pending JPS59154639U (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159279A (en) * 1978-06-06 1979-12-15 Matsushita Electric Works Ltd Photoelectric type smoke detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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