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JPS58189955U - ionization smoke detector - Google Patents

ionization smoke detector

Info

Publication number
JPS58189955U
JPS58189955U JP8746582U JP8746582U JPS58189955U JP S58189955 U JPS58189955 U JP S58189955U JP 8746582 U JP8746582 U JP 8746582U JP 8746582 U JP8746582 U JP 8746582U JP S58189955 U JPS58189955 U JP S58189955U
Authority
JP
Japan
Prior art keywords
smoke
peripheral end
opening
blocking body
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.)
Granted
Application number
JP8746582U
Other languages
Japanese (ja)
Other versions
JPH0219902Y2 (en
Inventor
耕平 山田
大西 巌
光男 長谷川
伊藤 章二
Original Assignee
ニッタン株式会社
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 ニッタン株式会社 filed Critical ニッタン株式会社
Priority to JP8746582U priority Critical patent/JPS58189955U/en
Publication of JPS58189955U publication Critical patent/JPS58189955U/en
Application granted granted Critical
Publication of JPH0219902Y2 publication Critical patent/JPH0219902Y2/ja
Granted legal-status Critical Current

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  • 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 drawings]

第1図は、この考案によるイオン化式煙感知器の一実施
例における一部を断面とした側面図、第2図は、第1図
のA−A’線における切断部端面図であって、両図を通
して同一部分は同一符号で示しである。 4・・・煙検出部、7・・・開孔、5・・・カバ一体、
8・・・阻止体、11・・・阻止体の周端部、9・・・
開孔の周端部、6・・・煙流入孔、10・・・傾斜面。
FIG. 1 is a partially sectional side view of an embodiment of the ionization type smoke detector according to the invention, and FIG. 2 is an end view of a section taken along line AA' in FIG. Identical parts are designated by the same reference numerals throughout both figures. 4...Smoke detection part, 7...Opening hole, 5...cover integrated,
8... Blocker, 11... Peripheral end of blocker, 9...
Peripheral end of opening, 6... smoke inflow hole, 10... inclined surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 煙による電極間のイオン電流の変化により煙を検出する
煙検出部を内部に収容し、周囲に複数個の開孔を有する
カバ一体と、上記開孔から煙検出部へ外気が直行するの
を阻止するように、上記開孔と対応する位置に設けられ
た阻止体とを具備し、該阻止体の周端部と上記開孔の周
端部との間隙に煙流入孔を形成したイオン化式煙感知器
において、上記開孔の周端部および/または上記阻止体
の周端部を傾斜面としたことを特徴とするイオン化式
A smoke detection part that detects smoke by changes in ionic current between electrodes due to smoke is housed inside, and a cover with a plurality of openings around the periphery prevents outside air from going directly from the openings to the smoke detection part. The ionization type includes a blocking body provided at a position corresponding to the opening so as to prevent the smoke from entering, and a smoke inflow hole is formed in the gap between the peripheral end of the blocking body and the peripheral end of the opening. An ionization type smoke detector, characterized in that a peripheral end of the opening and/or a peripheral end of the blocking body are sloped surfaces.
JP8746582U 1982-06-14 1982-06-14 ionization smoke detector Granted JPS58189955U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8746582U JPS58189955U (en) 1982-06-14 1982-06-14 ionization smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8746582U JPS58189955U (en) 1982-06-14 1982-06-14 ionization smoke detector

Publications (2)

Publication Number Publication Date
JPS58189955U true JPS58189955U (en) 1983-12-16
JPH0219902Y2 JPH0219902Y2 (en) 1990-05-31

Family

ID=30096181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8746582U Granted JPS58189955U (en) 1982-06-14 1982-06-14 ionization smoke detector

Country Status (1)

Country Link
JP (1) JPS58189955U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5774516B2 (en) * 2012-02-21 2015-09-09 日本特殊陶業株式会社 Particle sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152689U (en) * 1974-10-21 1976-04-21
JPS5187998A (en) * 1975-01-29 1976-07-31 Matsushita Electric Works Ltd KEMURI KANCHIKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152689U (en) * 1974-10-21 1976-04-21
JPS5187998A (en) * 1975-01-29 1976-07-31 Matsushita Electric Works Ltd KEMURI KANCHIKI

Also Published As

Publication number Publication date
JPH0219902Y2 (en) 1990-05-31

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