JPH0537841U - Elevator cage broadcasting device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To make it easier to hear the voice during a call between the car and the outside. [Composition] An in-car broadcast cutoff circuit 7a which is activated when a communication device 3 for making a notification from the inside of the car to the outside enters a call state.
Is equipped with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an elevator car broadcasting system.

[0002]

[Prior Art]

 In the conventional technology, as described in Japanese Utility Model Laid-Open No. 12575/1985, a plurality of musics to be broadcasted in the elevator car can be stored in a voice synthesizer, and the contents of the music can be changed on an hourly basis. There was an elevator car broadcasting system that eased the anxiety caused by the feeling of being closed.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional technology has a problem that since the broadcasting is continued while the elevator is running, the broadcasting becomes noise during communication between the inside and outside of the car by the communication device and it becomes difficult to hear each other's voices.

[0004] In particular, when a passenger trapped in a car contacts the outside when a failure occurs while the elevator is running, there is a problem that the voices of each other are hard to hear and cause anxiety and frustration. ..

Furthermore, when checking whether the communication device is transmitting and receiving at an appropriate audio level, broadcast noise is generated, and therefore it is not possible to confirm the proper audio level unless the broadcasting device performing this broadcast is switched off. , There was a problem that it took time and effort to turn off this switch.

An object of the present invention is to provide a broadcasting device in a car of an elevator that makes it easy to listen to a voice of a communication device during a call.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an elevator including a speaker installed in a car of an elevator and a music generating circuit for broadcasting music from the speaker to the car. The in-car broadcast device is provided with an in-car broadcast cutoff circuit that operates when a communication device for making a notification from the inside of the car to the outside enters a call state.

[0008]

[Action]

 Since the present invention is configured as described above, when a call is made between the inside and the outside of the car, the broadcasting of the car inside the car is stopped, so that the voice during the call can be easily heard and the sound level can be improved. Can be easily adjusted in a short time.

[0009]

【Example】

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

In the figure, a microphone 3A, a speaker 3B, and a call button 3C are provided on an upper part of a driving panel 2 of an elevator car 1, and an intercom 4 installed outside (for example, a manager's room) by operating the call button 3C. A communication device 3 for making a call is installed between the control power sources P and N, and has a contact 3Ca of the call button 3C, a contact 5a that is opened when a receiver (not shown) of the intercom 4 is removed, and regular contacts 6a and 6b. The call detection relay 6 is connected in series, and the normally open contact 6a is connected in parallel with the contact 3Ca.

Further, a normally open contact 6b and a call buzzer B Z of the intercom 4 are connected in series between the control power sources P and N, and a contact 5b which is closed when a microphone (not shown) of the microphone 3A and the intercom 4 is removed. Speakers 4b of the intercom 4 are connected in series, and a speaker 3B, a contact 5c that is closed when a receiver (not shown) of the intercom 4 is removed, and a microphone 4A of the intercom 4 are connected in series.

Further, between the control power sources P and N, a contact state detection relay 7 having a contact point 5d which is closed when a receiver (not shown) of the intercom 4 is removed and a normally closed contact point 7a which is an in-car broadcast cutoff circuit is connected in series. Further, a normally closed contact 7a and a voice synthesizer 8 for coding and storing a plurality of music are connected in series between the control power supplies P and N, and the speaker 9 provided in the arai section 1a of the car 1 is It is connected to the voice synthesizer 8 via an amplifier 10.

Next, the operation will be described.

Now, when the passenger 11 is in the car, the music stored in the voice synthesizer 8 by the circuit P-7a-8-N is stored in the car 1 by the circuit 8-10-9. It is broadcast from a speaker 9 installed on the ceiling 1a. Here, if a failure occurs in the elevator and the passenger 11 is locked in the car 1 without opening the door 16 of the car 1, the passenger 11 presses the call button 3C of the communication device 3 to make a call with a manager room (not shown). The call detection relay 6 is activated by the circuit of P-3Ca-5a-6-N, and the call detection relay 6 is self-maintained by the circuit of P-6a-5a-6-N. Be done.

When the call detection relay 6 is energized, the call buzzer BZ of the intercom 4 sounds in the circuit P-6b-BZ-N. When the administrator who opened the buzzer BZ removes the handset (not shown), the contact 5a of the intercom hook switch 5 is opened and the contacts 5b to 5d are closed, so that the circuit of P-6a-5a-6-N is opened. Then, the call detection relay 6 is deactivated, the circuit of P-6b-BZ-N is opened, and the buzzer BZ stops ringing. Further, the circuits 3A-5b-4b and 3B-5C-4A are formed, and a call can be made between the communication device 3 of the car 1 and the intercom of the manager's room (not shown). Furthermore, the circuit of P-5d-7-N is formed, the call state detection relay 7 is energized, the circuit of P-7a-8-N is opened, and the voice synthesizer 8 is cut off. The broadcasting of music from the speaker 9 is stopped.

[0016]

[Effect of the device]

 According to the present invention, when a call is made between the inside and outside of the car, the broadcasting of the broadcasting device inside the car is stopped, so that the voice during the call can be easily heard and the adjustment of the voice level can be easily performed. Can be done in time.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a main configuration of an embodiment of the present invention.

FIG. 2 is a front view showing a car entrance / exit of an embodiment of the present invention.

[Explanation of symbols]

 3 communication device 7 call state detection relay 7a normally closed contact of call state detection relay 8 voice synthesizer 9 speaker

Claims (1)

[Scope of utility model registration request] 1. An in-car broadcasting device for an elevator, comprising a speaker installed in a car of an elevator and a music generation circuit for broadcasting music in the car from the speaker, communication for making a notification from the inside of the car to the outside. An in-car broadcasting device for an elevator, comprising an in-car broadcasting cutoff circuit that operates when the device enters a call state.