JPH0344794U - - Google Patents

Info

Publication number
JPH0344794U
JPH0344794U JP10622489U JP10622489U JPH0344794U JP H0344794 U JPH0344794 U JP H0344794U JP 10622489 U JP10622489 U JP 10622489U JP 10622489 U JP10622489 U JP 10622489U JP H0344794 U JPH0344794 U JP H0344794U
Authority
JP
Japan
Prior art keywords
wall
scattered light
reflective
light type
detector according
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.)
Granted
Application number
JP10622489U
Other languages
English (en)
Other versions
JP2506304Y2 (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 JP1989106224U priority Critical patent/JP2506304Y2/ja
Publication of JPH0344794U publication Critical patent/JPH0344794U/ja
Application granted granted Critical
Publication of JP2506304Y2 publication Critical patent/JP2506304Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Description

【図面の簡単な説明】
第1図は、この考案の実施例を示す断面図で第
2図の−線断面拡大図、第2図は、使用状態
を示す縦断面図である。 4……発光素子、13……反射壁、13a……
反射面、14……防御壁、14a……防御面、1
5……防御壁、15a……防御面、21a……煙
の通口、21b……煙の通口。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 発光素子に向かう断面矢印状の反射壁;該
    反射壁の前方及び後方に形成された煙の通口;該
    反射壁の反射面に対向する防御面を有し、かつ、
    前記煙の通口を介して該反射壁を囲む断面く字状
    の防御壁;とを備えたことを特徴とする散乱光式
    煙感知器。 (2) 防御壁が、その内側先端を鋭角に形成され
    ている事を特徴とする請求項第1記載の散乱光式
    煙感知器。 (3) 反射面と光軸との交角が、防御面と光軸と
    の交角より小さいことを特徴とする第1記載の散
    乱光式煙感知器。 (4) 断面矢印状の反射壁が、円錐形に形成され
    ている事を特徴とする請求項第1記載の散乱光式
    煙感知器。 (5) 防御壁が、外壁と連続していることを特徴
    とする請求項第1記載の散乱光式煙感知器。
JP1989106224U 1989-09-12 1989-09-12 散乱光式煙感知器 Expired - Lifetime JP2506304Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989106224U JP2506304Y2 (ja) 1989-09-12 1989-09-12 散乱光式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989106224U JP2506304Y2 (ja) 1989-09-12 1989-09-12 散乱光式煙感知器

Publications (2)

Publication Number Publication Date
JPH0344794U true JPH0344794U (ja) 1991-04-25
JP2506304Y2 JP2506304Y2 (ja) 1996-08-07

Family

ID=31654962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989106224U Expired - Lifetime JP2506304Y2 (ja) 1989-09-12 1989-09-12 散乱光式煙感知器

Country Status (1)

Country Link
JP (1) JP2506304Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010238109A (ja) * 2009-03-31 2010-10-21 Nohmi Bosai Ltd 光電式煙感知器
WO2013001966A1 (ja) * 2011-06-30 2013-01-03 ホーチキ株式会社 散乱光式煙検出装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716955U (ja) * 1980-07-01 1982-01-28
JPS6237751U (ja) * 1985-08-24 1987-03-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716955U (ja) * 1980-07-01 1982-01-28
JPS6237751U (ja) * 1985-08-24 1987-03-06

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010238109A (ja) * 2009-03-31 2010-10-21 Nohmi Bosai Ltd 光電式煙感知器
WO2013001966A1 (ja) * 2011-06-30 2013-01-03 ホーチキ株式会社 散乱光式煙検出装置
JPWO2013001966A1 (ja) * 2011-06-30 2015-02-23 ホーチキ株式会社 散乱光式煙検出装置
US9157854B2 (en) 2011-06-30 2015-10-13 Hochiki Corporation Scattered light-type smoke detection apparatus

Also Published As

Publication number Publication date
JP2506304Y2 (ja) 1996-08-07

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