JPS6155786U - - Google Patents

Info

Publication number
JPS6155786U
JPS6155786U JP13724384U JP13724384U JPS6155786U JP S6155786 U JPS6155786 U JP S6155786U JP 13724384 U JP13724384 U JP 13724384U JP 13724384 U JP13724384 U JP 13724384U JP S6155786 U JPS6155786 U JP S6155786U
Authority
JP
Japan
Prior art keywords
fire
transmitter
activated
district line
alarm
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
JP13724384U
Other languages
Japanese (ja)
Other versions
JPH0353347Y2 (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 JP1984137243U priority Critical patent/JPH0353347Y2/ja
Publication of JPS6155786U publication Critical patent/JPS6155786U/ja
Application granted granted Critical
Publication of JPH0353347Y2 publication Critical patent/JPH0353347Y2/ja
Expired legal-status Critical Current

Links

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  • Fire Alarms (AREA)

Description

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

第１図は、この考案火災警報設備の一実施例を
示す回路図、第２図Ｘ，Ｙは、第１図の説明のた
めのタイムチヤートを示す。 １…火災検出回路、２…極性反転回路、３…タ
イマー回路、４…火災感知器、Ｔ…発信機、Ｄ…
ダイオード。 FIG. 1 is a circuit diagram showing an embodiment of this invented fire alarm system, and FIG. 2 X and Y show a time chart for explaining FIG. 1. 1... Fire detection circuit, 2... Polarity reversal circuit, 3... Timer circuit, 4... Fire detector, T... Transmitter, D...
diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 火災受信機と、該受信機より火災検出回路を介
して伸びた地区線路と、該地区線路に接続され、
作動時地区線路を低インピーダンスで短絡する火
災感知器および発信機と、火災感知器の作動時、
所定時間後発報させるタイマー回路とを備えた火
災報知設備において、上記発信機に直列にダイオ
ードを接続するとともに、火災感知器または発信
機の作動時、地区線路の極性を反転させる極性反
転回路を設け、発信機作動時においては直ちに発
報させることを特徴とする火災警報設備。 a fire receiver, a district line extending from the receiver via a fire detection circuit, and connected to the district line,
A fire detector and transmitter that shorts the district line with low impedance when activated, and when the fire detector is activated,
In a fire alarm system equipped with a timer circuit that issues an alarm after a predetermined period of time, a diode is connected in series with the transmitter, and a polarity reversal circuit is provided to reverse the polarity of the district line when the fire detector or transmitter is activated. , a fire alarm system characterized in that it immediately sounds an alarm when the transmitter is activated.
JP1984137243U 1984-09-12 1984-09-12 Expired JPH0353347Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984137243U JPH0353347Y2 (en) 1984-09-12 1984-09-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984137243U JPH0353347Y2 (en) 1984-09-12 1984-09-12

Publications (2)

Publication Number Publication Date
JPS6155786U true JPS6155786U (en) 1986-04-15
JPH0353347Y2 JPH0353347Y2 (en) 1991-11-21

Family

ID=30695659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984137243U Expired JPH0353347Y2 (en) 1984-09-12 1984-09-12

Country Status (1)

Country Link
JP (1) JPH0353347Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000242869A (en) * 1999-02-22 2000-09-08 Matsushita Electric Works Ltd Fire alarm system provided with alarming test function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51108588U (en) * 1975-02-28 1976-08-31
JPS51110476U (en) * 1975-03-03 1976-09-07
JPS51127281U (en) * 1975-04-08 1976-10-14
JPS51136088U (en) * 1975-04-24 1976-11-02
JPS57123589U (en) * 1981-01-20 1982-08-02

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51108588U (en) * 1975-02-28 1976-08-31
JPS51110476U (en) * 1975-03-03 1976-09-07
JPS51127281U (en) * 1975-04-08 1976-10-14
JPS51136088U (en) * 1975-04-24 1976-11-02
JPS57123589U (en) * 1981-01-20 1982-08-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000242869A (en) * 1999-02-22 2000-09-08 Matsushita Electric Works Ltd Fire alarm system provided with alarming test function

Also Published As

Publication number Publication date
JPH0353347Y2 (en) 1991-11-21

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