JPS63110992U - - Google Patents

Info

Publication number
JPS63110992U
JPS63110992U JP103487U JP103487U JPS63110992U JP S63110992 U JPS63110992 U JP S63110992U JP 103487 U JP103487 U JP 103487U JP 103487 U JP103487 U JP 103487U JP S63110992 U JPS63110992 U JP S63110992U
Authority
JP
Japan
Prior art keywords
light
hole
light source
intake hole
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
JP103487U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP103487U priority Critical patent/JPS63110992U/ja
Publication of JPS63110992U publication Critical patent/JPS63110992U/ja
Pending legal-status Critical Current

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  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Description

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

第１図は本考案に係る光電式煙感知器の一実施
例を示す概略縦断側面図、第２図はその横断側面
図である。 １……光電式煙感知器、２……暗箱、３，４…
…通気孔、５……光源、６……レンズ、７……光
トラツプ部、８，９……小孔を有する仕切壁、１
０……煙による散乱光受光用の受圧素子、１１，
１２……平面状黒色壁、１３……取込み孔部、１
４，１５……平面状つや消し黒色壁、１６……屈
曲孔部、１７……受光素子。 FIG. 1 is a schematic longitudinal side view showing an embodiment of a photoelectric smoke detector according to the present invention, and FIG. 2 is a cross-sectional side view thereof. 1...Photoelectric smoke detector, 2...Dark box, 3, 4...
...ventilation hole, 5...light source, 6...lens, 7...light trap section, 8, 9...partition wall having small holes, 1
0...pressure receiving element for receiving light scattered by smoke, 11,
12...Planar black wall, 13...Intake hole, 1
4, 15... Planar matte black wall, 16... Bent hole, 17... Light receiving element.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 煙導入用の通気孔を有する暗箱内で光を照射す
る光源と、この光源からの直接光を受光しない位
置に配設され煙による散乱光を受光する受光素子
と、前記光源からの直接光を取込むように暗箱内
の対向する位置に配設された光トラツプ部を備え
てなる光電式煙感知器において、前記光トラツプ
部は、光源からの直接光を取込むように少なくと
も二枚の光沢を有する平面状黒色壁を対向して設
けた取込み孔部と、この取込み孔部の奥側で第２
の平面状黒色壁により反射された光が入射される
屈曲孔部とからなり、この屈曲孔部は、複数枚の
平面状を呈するつや消し黒色壁によつて形成され
ていることを特徴とする光電式煙感知器。 A light source that irradiates light in a dark box having a ventilation hole for introducing smoke; a light receiving element that is disposed at a position that does not receive direct light from the light source and receives light scattered by the smoke; In a photoelectric smoke detector, the light trap sections are provided with light trap sections arranged at opposite positions in a dark box so as to capture direct light from the light source. an intake hole with a planar black wall facing each other, and a second intake hole on the back side of the intake hole.
and a bent hole through which light reflected by a flat black wall is incident, and the bent hole is formed by a plurality of flat matte black walls. type smoke detector.
JP103487U 1987-01-09 1987-01-09 Pending JPS63110992U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP103487U JPS63110992U (en) 1987-01-09 1987-01-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP103487U JPS63110992U (en) 1987-01-09 1987-01-09

Publications (1)

Publication Number Publication Date
JPS63110992U true JPS63110992U (en) 1988-07-16

Family

ID=30778563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP103487U Pending JPS63110992U (en) 1987-01-09 1987-01-09

Country Status (1)

Country Link
JP (1) JPS63110992U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105905A (en) * 2004-10-08 2006-04-20 Fuji Electric Systems Co Ltd Particulate-measuring device
JP2006189337A (en) * 2005-01-06 2006-07-20 Fuji Electric Systems Co Ltd Fine particle measuring instrument
JP2009113305A (en) * 2007-11-06 2009-05-28 Ricoh Elemex Corp Liquid-delivery-failure detecting apparatus and inkjet recorder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105905A (en) * 2004-10-08 2006-04-20 Fuji Electric Systems Co Ltd Particulate-measuring device
JP2006189337A (en) * 2005-01-06 2006-07-20 Fuji Electric Systems Co Ltd Fine particle measuring instrument
JP2009113305A (en) * 2007-11-06 2009-05-28 Ricoh Elemex Corp Liquid-delivery-failure detecting apparatus and inkjet recorder

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