JPS6251485U - - Google Patents

Info

Publication number
JPS6251485U
JPS6251485U JP13985885U JP13985885U JPS6251485U JP S6251485 U JPS6251485 U JP S6251485U JP 13985885 U JP13985885 U JP 13985885U JP 13985885 U JP13985885 U JP 13985885U JP S6251485 U JPS6251485 U JP S6251485U
Authority
JP
Japan
Prior art keywords
diaphragm
air
center
leak hole
temperature rise
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
JP13985885U
Other languages
Japanese (ja)
Other versions
JPH0449750Y2 (en
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 JP1985139858U priority Critical patent/JPH0449750Y2/ja
Publication of JPS6251485U publication Critical patent/JPS6251485U/ja
Application granted granted Critical
Publication of JPH0449750Y2 publication Critical patent/JPH0449750Y2/ja
Expired legal-status Critical Current

Links

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  • Fire-Detection Mechanisms (AREA)

Description

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

図面は本願考案を説明する図面であつて、第１
図乃至第３図は従来例を示し、第１図は断面図、
第２図乃至第３図はリーク孔の断面図を示す。第
４図乃至第７図は本願考案の実施例を説明する図
面であつて、第４図は部分断面図、第５図はダイ
ヤフラム２１の平面図、第６図イ、第７図イはダ
イヤフラム２１の部分断面図、第６図ロ、第７図
ロはその部分平面図である。 ２０……感熱板、２１……ダイヤフラム、２１
ａ，ｂ……ダイヤフラムの平担部、２１ｄ……リ
ーク孔、２１ｅ……加工歪のある平担部中心部、
２２……ダイヤフラム支持板、２３……空気室。 The drawings are drawings illustrating the invention of the present application, and are
Figures 3 to 3 show conventional examples, and Figure 1 is a sectional view;
2 and 3 show cross-sectional views of the leak hole. 4 to 7 are drawings for explaining an embodiment of the present invention, in which FIG. 4 is a partial sectional view, FIG. 5 is a plan view of the diaphragm 21, and FIGS. 6A and 7B are diaphragm 21, FIG. 6B, and FIG. 7B are partial plan views thereof. 20... Heat sensitive plate, 21... Diaphragm, 21
a, b... Flat part of the diaphragm, 21d... Leak hole, 21e... Center part of the flat part with processing distortion,
22...Diaphragm support plate, 23...Air chamber.

Claims (1)

【実用新案登録請求の範囲】 (1) 感熱板とダイヤフラムとダイヤフラム支持
板とで空気室を形成し、緩慢な温度上昇で膨脹す
る空気はリーク孔よりリークさせ、火災による温
度上昇で膨脹した空気室の空気によりダイヤフラ
ムを変位させ火災を検出するようにした差動式熱
感知器において、前記リーク孔をダイヤフラムの
中央の平担部に設けたことを特徴とする差動式熱
感知器。 (2) 前記リーク孔をダイヤフラムの中央部の平
担面であつて、加工歪のある平担部中心部をさけ
た位置に設けたことを特徴とする実用新案登録請
求の範囲第１項記載の差動式熱感知器。[Scope of Claim for Utility Model Registration] (1) An air chamber is formed by a heat-sensitive plate, a diaphragm, and a diaphragm support plate, and the air that expands due to a slow temperature rise is leaked from the leak hole, and the air that expands due to the temperature rise due to a fire. 1. A differential heat sensor configured to detect fire by displacing a diaphragm by air in a room, characterized in that the leak hole is provided in a flat part at the center of the diaphragm. (2) Claim 1 of the Utility Model Registration Claim characterized in that the leak hole is provided in a flat surface at the center of the diaphragm, avoiding the center of the flat portion where processing distortion occurs. Differential heat sensor.
JP1985139858U 1985-09-12 1985-09-12 Expired JPH0449750Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985139858U JPH0449750Y2 (en) 1985-09-12 1985-09-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985139858U JPH0449750Y2 (en) 1985-09-12 1985-09-12

Publications (2)

Publication Number Publication Date
JPS6251485U true JPS6251485U (en) 1987-03-31
JPH0449750Y2 JPH0449750Y2 (en) 1992-11-24

Family

ID=31046159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985139858U Expired JPH0449750Y2 (en) 1985-09-12 1985-09-12

Country Status (1)

Country Link
JP (1) JPH0449750Y2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735766A (en) * 1952-10-23 1955-08-31 Joseph Peppo Levy Improvements in or relating to burglar alarm and like warning systems
JPS5315280U (en) * 1976-07-20 1978-02-08
JPS5744459U (en) * 1980-08-28 1982-03-11
JPS5760144U (en) * 1980-09-24 1982-04-09
JPS6034857U (en) * 1983-08-16 1985-03-09 ホーチキ株式会社 fire detector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6034857B2 (en) * 1977-04-20 1985-08-10 株式会社日立製作所 switching circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735766A (en) * 1952-10-23 1955-08-31 Joseph Peppo Levy Improvements in or relating to burglar alarm and like warning systems
JPS5315280U (en) * 1976-07-20 1978-02-08
JPS5744459U (en) * 1980-08-28 1982-03-11
JPS5760144U (en) * 1980-09-24 1982-04-09
JPS6034857U (en) * 1983-08-16 1985-03-09 ホーチキ株式会社 fire detector

Also Published As

Publication number Publication date
JPH0449750Y2 (en) 1992-11-24

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