JPS5839695U - Fire alarm bell ringing control device - Google Patents

Fire alarm bell ringing control device

Info

Publication number
JPS5839695U
JPS5839695U JP13438381U JP13438381U JPS5839695U JP S5839695 U JPS5839695 U JP S5839695U JP 13438381 U JP13438381 U JP 13438381U JP 13438381 U JP13438381 U JP 13438381U JP S5839695 U JPS5839695 U JP S5839695U
Authority
JP
Japan
Prior art keywords
bell
control device
ringing control
switch circuit
fire 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
JP13438381U
Other languages
Japanese (ja)
Other versions
JPS6339819Y2 (en
Inventor
浩司 大内
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 JP13438381U priority Critical patent/JPS5839695U/en
Publication of JPS5839695U publication Critical patent/JPS5839695U/en
Application granted granted Critical
Publication of JPS6339819Y2 publication Critical patent/JPS6339819Y2/ja
Granted legal-status Critical Current

Links

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]

図は、この考案の一実施例を示す回路図である。 ＲＣ・・・火災受信機、１．１′・・・ベル線路、ＢＬ
・・・ベル、Ｐ、Ａ−Ｎ−・・端子、Ｒ１〜Ｒ１ｏ−Ｒ
ｅ・・・抵抗、Ｑ、〜Ｑ、・・・トランジスタ、Ｄ□〜
Ｄ２・Ｄｅ・・・ダイオード、ＬＤ・・・発光ダイオー
ド。The figure is a circuit diagram showing an embodiment of this invention. RC...Fire receiver, 1.1'...Bell line, BL
...Bell, P, A-N-...Terminal, R1~R1o-R
e...Resistance, Q, ~Q,...Transistor, D□~
D2・De...diode, LD...light emitting diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 警戒区域に伸びた一対のベル線路間にそれぞれダイオー
ドを介し並列接続された複数のベルと、上記ベル線路の
終端に終端素子を接続し、常時は上記ダイオードの逆方
向の電圧印加により上記終端素子を介する通電状態によ
り断線を監視し、ベル鳴動時には上記ダイオードの順方
向の電圧印加によりベルを鳴動させる火災報知桟用ベル
鳴動制御装置において、ベル鳴動信号により上記一対の
ベル線路の一方を電源のプラス側に接続するトランジス
タから成る第１のスイッチ回路と、該第１のスイッチ回
路の閉路時に駆動され、上記一対のベル線路の他の一方
を電源のマイナス側に接続するトランジスタから成る第
２のスイッチ回路と、電源より断線監視のための抵抗を
介し上記ベル線路に接続したことを特徴とする火災報知
桟用ベル鳴動制御装置。A plurality of bells are connected in parallel through diodes between a pair of bell lines extending into a guarded area, and a terminating element is connected to the end of the bell line, and a voltage is normally applied in the opposite direction of the diodes to terminate the terminating element. In a bell ringing control device for a fire alarm frame, the bell ringing control device monitors disconnection based on the energization state through the bell, and when the bell rings, the bell rings by applying a voltage in the forward direction of the diode. a first switch circuit consisting of a transistor connected to the positive side; and a second switch circuit consisting of a transistor that is driven when the first switch circuit is closed and connects the other one of the pair of bell lines to the negative side of the power supply. A bell ringing control device for a fire alarm crosspiece, characterized in that it is connected to the bell line via a switch circuit and a resistor for monitoring disconnection from a power source.
JP13438381U 1981-09-11 1981-09-11 Fire alarm bell ringing control device Granted JPS5839695U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13438381U JPS5839695U (en) 1981-09-11 1981-09-11 Fire alarm bell ringing control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13438381U JPS5839695U (en) 1981-09-11 1981-09-11 Fire alarm bell ringing control device

Publications (2)

Publication Number Publication Date
JPS5839695U true JPS5839695U (en) 1983-03-15
JPS6339819Y2 JPS6339819Y2 (en) 1988-10-19

Family

ID=29927812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13438381U Granted JPS5839695U (en) 1981-09-11 1981-09-11 Fire alarm bell ringing control device

Country Status (1)

Country Link
JP (1) JPS5839695U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106445A (en) * 1983-11-12 1985-06-11 有限会社中西歯科器械製作所 Dental air turbine handpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106445A (en) * 1983-11-12 1985-06-11 有限会社中西歯科器械製作所 Dental air turbine handpiece
JPS6133586B2 (en) * 1983-11-12 1986-08-02 Nakanishi Shika Kikai Seisakusho Kk

Also Published As

Publication number Publication date
JPS6339819Y2 (en) 1988-10-19

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