JPH07267528A - Interphone device of elevator - Google Patents

Abstract

PURPOSE:To mitigate passenger's sense to be uneasy likely when no reply is given from the master unit and prevent damage of a calling switch due to hard or too frequent pushing. CONSTITUTION:An automatic anouncing device 13 to emit a voice automatically in an elevator car 1 in conformity to a signal given by a calling switch 5 is installed in connection with the switch 5. In case no reply is given from the master units 3, 4 for a certain specified time, the auto-announcing device 13 actuates an emergency bell 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom device for an elevator used for a telephone call between a car room and a machine room or a management room outside the car room.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing an example of a conventional elevator intercom system. In the figure, 1 is a car room, 2 is a child machine provided in the car room 1, 3 and 4 are provided respectively in a machine room and a management room outside the car room 1 (neither is shown). Base units, each of which is connected to the handset 2. In addition, call buzzers 3a and 4a are provided in the respective master units 3 and 4. Reference numeral 5 is a call switch which is provided in the car room 1 and is composed of push button switches which are connected to the master devices 3 and 4 via the slave device 2, and 6 is installed on the canopy 7 of the car room 1. This is a DC power supply device, and this DC power supply device 6 supplies power to the child device 2 and the parent devices 3 and 4.

Next, the operation will be described. When the elevator breaks down for some reason and the passenger is trapped in the cab 1, the passenger pushes the button of the call switch 5. As a result, the call buzzers 3a and 4a of the respective base units 3 and 4 ring, the administrator or the like picks up the receiver of the base units 3 and 4, and the telephone call between the handset 2 and the base units 3 and 4 becomes possible. .
As a result, it is confirmed that passengers are confined in the car room 1, and measures for rescue are taken.

[0004]

DISCLOSURE OF THE INVENTION In the conventional elevator intercom device configured as described above,
Even if a passenger trapped in the car room 1 presses the call switch 5 and the call buzzers 3a and 4a ring, there is no response from the base units 3 and 4 unless there is a person in the machine room or the control room. Since the sounds of the call buzzers 3a and 4a cannot be heard up to the inside of the car room 1, passengers in the car room 1 are uncertain whether or not the call switch 5 and the call buzzers 3a and 4a are operating correctly. There was a problem.
In particular, when there is no response for a long time at night, the anxiety is great. Further, there is a problem in that the passenger pushes the calling switch 5 many times due to the anxiety, the wear of the calling switch 5 progresses, and the calling switch 5 is damaged due to rough handling.

The present invention has been made to solve the above problems, and can alleviate passengers' anxiety when there is no response from the master unit, and the need for a call switch. An object of the present invention is to obtain an intercom device for an elevator that can prevent damages due to the above operations and rough operations.

[0006]

An intercom device for an elevator according to the invention of claim 1 is provided in a car room, a child device connected to a master device provided outside the car room, and a car interior in the car room. A call switch provided to call the master unit and an automatic announcement device connected to the call switch and automatically emitting a voice in the car room in response to a signal from the call switch are provided.

In the intercom device for an elevator according to the second aspect of the invention, the automatic announcement device sounds the emergency bell when there is no response from the base unit for a predetermined time.

[0008]

According to the present invention, when the call switch is operated and there is no response from the base unit, the automatic announcement device emits a voice indicating that the voice is being called into the car room, thereby alleviating the anxiety of passengers.

Further, if there is no response from the master unit for a predetermined time or more, an emergency bell is sounded by an automatic announcement device to notify a person other than the manager of the occurrence of the canning accident.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an intercom device for an elevator according to an embodiment of the present invention, and FIG. 2 is a schematic circuit diagram of the device of FIG. 1. The same or corresponding parts as in FIG. The description is omitted.

In the figure, 11 is provided on the canopy 7,
Further, the voice synthesizer 11 is connected to the call switch 5 and the DC power supply device 6, and the voice synthesizer 11 inputs and stores the call signal from the call switch 5. Further, the voice synthesis device 11 has a voice synthesis circuit section 11a and a time relay circuit section 11b, as shown in FIG. Reference numeral 12 is a speaker connected to the voice synthesizer 11, 13 is an automatic announcement device including the voice synthesizer 11 and the speaker 12, and 14 is an emergency bell connected to the voice synthesizer 11.

Next, the operation will be described. When the elevator breaks down for some reason and the passenger is trapped in the cab 1, the passenger pushes the button of the call switch 5. As a result, the call buzzers 3a and 4a of the respective masters 3 and 4 ring, and the call signal is also input to the voice synthesizer 11. The voice synthesizer 11 stores the input of the calling signal and detects and confirms that the calling buzzers 3a and 4a have been operated, and then automatically outputs a voice, for example, to the cab 1 by the speaker 12. An announcement such as "I am calling the manager now. Please wait for a while."

Further, the time relay circuit section 11b built in the voice synthesizer 11 counts the number of times the button of the call switch 5 is pressed and the time when there is no response from the base units 3 and 4, and the button is If the button is pressed a certain number of times or if there is no response for a certain period of time, an announcement different from the above, such as "I am calling the manager but there is no response. I will ring the emergency bell and report to the hall." And the emergency bell 14 is sounded.

In such an intercom system, when the call switch 5 is operated, an announcement is automatically broadcast in the car room 1, so that the anxiety of passengers trapped in the car room 1 is eliminated. . Further, it is possible to prevent the button of the call switch 5 from being pushed more than necessary or to be operated roughly, and thereby prevent the call switch 5 from being damaged.

Further, since the emergency bell 14 is set to ring when there is no response for a predetermined time, it is possible to notify a passer-by person passing in front of the elevator of the occurrence of a canning accident even if the manager is absent. Yes, and can contact external parties. Therefore, the anxiety of the passenger who is trapped can be further alleviated, and the passenger can be rescued earlier.

The contents of the announcement by the automatic announcement device 13 are not limited to those in the above embodiment.

[0017]

As described above, the elevator intercom system according to the first aspect of the present invention is provided with the automatic announcement device for automatically producing the voice in the car room in response to the signal from the call switch. It is possible to alleviate the passengers' anxiety when there is no response from, and to prevent the call switch from being damaged by excessive operation or rough operation.

Further, in the intercom device for an elevator according to the invention of claim 2, the automatic announcement device sounds the emergency bell when there is no response from the master for a predetermined time. In addition to similar effects,
When a manager is not present, people other than the manager can be notified of the accident, which can further alleviate the anxiety of the passengers trapped in the car room and can rescue the passengers early. Play.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an intercom device for an elevator according to an embodiment of the present invention.

2 is a schematic circuit diagram of the device of FIG.

FIG. 3 is a configuration diagram showing an example of a conventional intercom device for an elevator.

[Explanation of symbols]

 1 Car room 2 Slave unit 3 Master unit 4 Master unit 5 Call switch 13 Automatic announcement device 14 Emergency bell

Claims (2)

[Claims] 1. A slave unit provided in a car room and connected to a master unit provided outside the car room; and a call switch provided in the car room to call the master unit.
An intercom device for an elevator, comprising: an automatic announcement device that is connected to the call switch and automatically emits a voice in the car room in response to a signal from the call switch. 2. The intercom device for an elevator according to claim 1, wherein the automatic announcement device rings an emergency bell when there is no response from the master device for a predetermined time.