JPS5815285U - fire detector - Google Patents
fire detectorInfo
- Publication number
- JPS5815285U JPS5815285U JP10560181U JP10560181U JPS5815285U JP S5815285 U JPS5815285 U JP S5815285U JP 10560181 U JP10560181 U JP 10560181U JP 10560181 U JP10560181 U JP 10560181U JP S5815285 U JPS5815285 U JP S5815285U
- Authority
- JP
- Japan
- Prior art keywords
- fire
- fire detector
- alarm
- output
- circuit
- 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
Links
Landscapes
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、本考案の一実施例よりなる火災感知器のブロ
ック図、第２図は、第１図の時間発生回路の具体例を詳
細に示した回路図、第３図は、第１図及び第２図の回路
の動作タイミング図である。
２・・・・・・時間設定スイッチ、４・・・・・・時間
発生回路、６・・・・・・ローバッテリイ検出回路、８
・・・・・・火災検出回路、１０・・・・・・アンドゲ
ート、１２・・・・・・オアゲート、１４・・・・・・
ブザー（時報用）、１６・・・・・・ブザー（火災・ロ
ーバツテリイ用）、２０・・・・・・時間設定回路、２
２・・・・・・時計回路、２４・・・・・・比較器、２
６・・・・・・ＲＳフリップフロップ。FIG. 1 is a block diagram of a fire detector according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing a detailed example of the time generation circuit of FIG. 1, and FIG. FIG. 3 is an operation timing diagram of the circuit of FIG. 3 and FIG. 2; 2...Time setting switch, 4...Time generation circuit, 6...Low battery detection circuit, 8
...Fire detection circuit, 10...And gate, 12...Or gate, 14...
Buzzer (for time signal), 16... Buzzer (for fire/low battery), 20... Time setting circuit, 2
2... Clock circuit, 24... Comparator, 2
6...RS flip-flop.
Claims (1)
に警報器を作動して火災誓報を発する火災感知器におい
て、上記電池電源の電圧が所定値以下に低下したことを
検出して出力する電圧低下検出回路と、該電圧低下検出
回路の出力を所定時間帯に警報器へ入力させるゲート回
路と、該ゲート回路の出力許容時間帯を設定する時間設
定回路とを備えたことを特徴とする火災感知器。A fire detector that is powered by a battery and that activates an alarm and issues a fire alarm when it detects a physical change associated with a fire detects that the voltage of the battery power supply has dropped below a predetermined value. A voltage drop detection circuit that outputs an output, a gate circuit that inputs the output of the voltage drop detection circuit to an alarm at a predetermined time period, and a time setting circuit that sets an output permissible time period of the gate circuit. fire detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10560181U JPS5815285U (en) | 1981-07-16 | 1981-07-16 | fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10560181U JPS5815285U (en) | 1981-07-16 | 1981-07-16 | fire detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5815285U true JPS5815285U (en) | 1983-01-31 |
| JPS6319912Y2 JPS6319912Y2 (en) | 1988-06-02 |
Family
ID=29900132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10560181U Granted JPS5815285U (en) | 1981-07-16 | 1981-07-16 | fire detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815285U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182196A (en) * | 1985-02-06 | 1986-08-14 | 松下電工株式会社 | Emergency call apparatus |
| JPS6271795U (en) * | 1985-10-21 | 1987-05-08 | ||
| JP2002170185A (en) * | 2000-11-30 | 2002-06-14 | Hochiki Corp | Alarm replacement time notification system |
| JP2010181921A (en) * | 2009-02-03 | 2010-08-19 | Hochiki Corp | Alarm |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3895646B2 (en) | 2002-07-16 | 2007-03-22 | ホーチキ株式会社 | Battery-powered alarm |
-
1981
- 1981-07-16 JP JP10560181U patent/JPS5815285U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61182196A (en) * | 1985-02-06 | 1986-08-14 | 松下電工株式会社 | Emergency call apparatus |
| JPS6271795U (en) * | 1985-10-21 | 1987-05-08 | ||
| JP2002170185A (en) * | 2000-11-30 | 2002-06-14 | Hochiki Corp | Alarm replacement time notification system |
| JP4680376B2 (en) * | 2000-11-30 | 2011-05-11 | ホーチキ株式会社 | Alarm replacement time notification system |
| JP2010181921A (en) * | 2009-02-03 | 2010-08-19 | Hochiki Corp | Alarm |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6319912Y2 (en) | 1988-06-02 |
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