JPS59163692A - Fire signal receiver - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to a fire receiver.

[Background technology]

A conventional fire receiver includes a detector S, as shown in Figure 1.
The district relays R1...Rn connected to A stop switch S1 is connected in series with the receiver circuit 1.2, and the district sound bell b also has relay contacts rl, rn and a stop switch S2 connected in series with the receiver circuit 1.2. These stop switches SL and S2 are provided to stop the main sound bell and the district sound bell for testing purposes.

Therefore, even if the fire receiver is properly installed, the stop switch 3
．． If 32 is operated, each acoustic bell will not ring even if the detector S is activated due to a real fire, so it is conceivable that the response to the fire will be delayed.

[Purpose of the invention]

The present invention focuses on the above-mentioned conventional situation and solves the above-mentioned problems by using a representative relay contact that responds to the operation of a sensor.

[Disclosure of the invention]

An embodiment of the present invention will be described below with reference to FIG. 2.

(The same parts as in the conventional example in Fig. 1 are given the same symbols.) In the receiver circuit 1.2, sensors S, S... are connected in series with the district relay R1, and other district relays Rn are also connected. Although not shown, it is similar.

Relay contacts r1, . Relay contact r of this representative relay RF
fl is a main acoustic bell B and a stop switch S1 connected in series to the receiver circuits 1 and 2.

Contact 5 of stop switch S1 is connected to contact 4 of stop switch S2 of district sound bell b.

The contact 3 of the stop switch S2 is the district sound bell b and the relay contact r1 of the district relay R1.

A timer circuit T and a relay contact rf of one representative relay RF are connected in series to receiver circuits 1 and 2.

This timer circuit T starts a delay operation when the relay contact rf is closed, and the timer circuit itself is closed.

Next, the operation will be explained. When stop switches Sl and S2 are both closed to contacts 5 and 3, which are normal contact positions, relay contacts rfl and rf2 are closed due to the operation of sensor S, and main sound bell B immediately rings, and the timer circuit is activated. T starts the delay, and the staff who hears the ringing gives a delay time long enough to confirm whether there is a real fire or not, and after the delay time ends, the timer circuit T itself closes with a time amplification, and the district sound bell B Since the fire alarm makes a sound, people other than staff can avoid causing unnecessary confusion due to non-fire hazards.

Also, open the stop switch 7-chi S1 and open the stop switch S1.
2 to the stop side, the main acoustic bell B is connected to the receiver circuits 1 and 2 via the contact 4 and rings immediately, and the district acoustic bell B switches its stop switch SL,
It does not sound as if it were operated in S2, and the staff can confirm it in this case as well.

〔Effect of the invention〕

As explained above, according to the fire receiver of the present invention, there is a series circuit between the relay contact of the representative relay driven by the relay contact of the district relay connected to the detector and the main sound bell, and the stop switch of the main sound bell and the district relay. In a fire receiver consisting of a parallel circuit with an acoustic bell stop switch and a series connection at both ends of the receiver circuit.

A district acoustic bell is connected in series to the other relay contact of the representative relay via a timer circuit, and the other end of this series circuit is connected to both ends of the receiver circuit via the stop side contact of the district acoustic stop switch. Even if the stop switch is turned to the stop side, the main sound bell always rings, allowing immediate response to a real fire. However, even in the unlikely event that there is no fire, the district sound bell will ring after confirming whether there is a fire or not by ringing the main sound bell, making it possible to avoid unnecessary confusion.

[Brief explanation of the drawing]

) Figure 1 is a circuit diagram of a conventional example. FIG. 2 is a circuit diagram of an embodiment of the present invention. 1.2: Receiver circuit, 3, 4, 5: Contact, s: Sensor,
R1...Rn: District relay, RF: Representative relay, rl
, rn, rfl, rf2: relay contact, B: main sound bell, b = district sound bell, T: timer circuit. Patent Applicant Matsushita Electric Works Co., Ltd. Agent, -r1 Toshimaru Takemoto (Two Idiots) Procedural Amendment (Honiki July 21, 1981 Patent Application No. 39486 2, Name of Invention Fire Receiver 3, relationship to the amended case Patent applicant address 1048 Kadoma, Kadoma City, Osaka Name (583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4 Agent address Oaza Kadoma City, Osaka Prefecture Kadoma 1048-575-

Claims (1)

[Claims] l) A series circuit between the relay contact of the representative relay driven by the relay contact of the district relay connected to the sensor and the main sound bell, and a parallel circuit between the main sound bell stop switch and the district sound bell stop switch are connected to the receiver. In a fire receiver connected in series to both ends of the circuit, a district sound bell is connected in series to the other relay contact of the representative relay via a timer circuit, and the other end of the series circuit is connected to the other end of the series circuit to stop the district sound stop switch. A fire receiver connected to both ends of the receiver circuit through side contacts.