JPH0977401A - Elevator emergency talking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability and controllability by constituting a device so as to use respective push buttons on an operation panel in a car as call buttons of a talking device when an elevator is under abnormal conditions and design a device so as to take a contact with the outside by operating any push-button if the elevator is under an abnormal condition. SOLUTION: When an elevator is under normal conditions, respective call buttons 10a-10c in a car, a door opening button 11, a door closing button 12, the normally-open contact 13a ((a) contact) of a failure detecting relay 13, and a normally-open contact 14b ((b) contact) of a power failure detecting relay 14 are open, thus keeping usual functions operative. When this detecting circuit 8 detects some failure of the elevator, the failure detecting relay 13 operates to close the contact 13a. Then, the respective call buttons 10a-10c, the door opening button 11, and the door closing button 12 are connected to a starting circuit 7, thus it is possible to start an inter-phone by operating any of the buttons. Even if power failure occurs in the elevator, it is possible to start the inter-phone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency call device for an elevator.

[0002]

2. Description of the Related Art The electrical circuit function of an emergency communication device installed in a conventional elevator car will be described with reference to FIG.

Generally, a car has a call button (a push button for registering a destination floor) 1a, 1b, 1c ... In the car, and has a car call registration circuit 2, a door opening button 3, and a door closing button 4 for opening and closing a car door. A door control circuit 5 and the like are provided, and these push buttons 1, 3, 4 are collectively installed on the operation panel. In addition to this operation panel, an emergency intercom 6 and an intercom activation circuit 7 are installed inside and outside the car. still,
The elevator failure detection circuit 8 is installed outside the car.

To activate the intercom system for emergency use of the elevator, the intercom system is provided outside the car by pressing the call button 9 of the intercom of the intercom system provided in the elevator car. Is activated, allowing you to talk to the inside of the elevator car.

However, the conventional method of pressing the special call button 9 to activate the intercoms (communication devices) 6 and 7 is extremely difficult when a visually impaired person or a child is confined in the car by himself. Since it may be necessary to find the location of the call button 9, or the position of the emergency intercom 9 call button may differ depending on the elevator model or elevator maker, the position of the emergency intercom call button 9 may be changed in the case of a sleight of hand. It was difficult to find and press the call button 9.

[0006] This means that it is possible for ordinary passengers to find an emergency intercom call button easily due to an unexpected accident.

[0007]

[Problems to be Solved by the Invention] When an abnormality such as an elevator failure or a power failure occurs, passengers panic and press any button other than the emergency call button to function as an emergency call button. Need to be able to easily reach outside.

[0008]

According to the present invention, a destination floor registration call button in a car, a door open button or a door close button for operating a car door, such as a door open button or a door close button in the car, is provided only when the elevator detects an abnormality. Emergency call device (intercom) by operating any one of all operation buttons
Start up and enable communication with the outside.

If any of the push buttons can be used as described above, the intercom is activated and the user can talk by touching the push button without knowing the push button.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

Each push button on the conventional operation panel in the car, that is, the push button 1a, 1b, 1c for registering the destination floor to go to,
Door control push buttons 3 and 4 for closing the door are connected to respective control circuits.

Further, an emergency communication device (intercom activation circuit) 7 and an elevator failure detection circuit 8 for detecting abnormalities such as various failures of the elevator and power failure are installed outside the car.

The emergency push button of the present invention is constructed by newly providing the following circuits in addition to these circuits.

Conventional call buttons 1a, 1b, 1 in each car
c, door open button 3, door close button 4, etc. are provided with parallel contacts (call buttons). This is a two-circuit two-contact push button 10a, b, c ..., 11, instead of the conventional push button.
12 is used. These push buttons 10a,
One contact of b, c ..., 11, 12 is connected to the car call registration circuit 2 and the door control circuit 5, respectively, as in the conventional case.

All the remaining a contacts in parallel with these contacts are connected in parallel, and these are further connected to the normally open contact (a contact) 13a of the failure detection relay 13 of the elevator failure detection circuit 8 and the normal interruption of the power failure detection relay 14. The closed contacts (b contacts) 14b are respectively connected in series, and this circuit is connected in parallel with the intercom call button 9.

With this circuit configuration, the emergency communication device functions as follows.

Normally, when the elevator is in a normal state, the in-car call buttons 10a, 10b, 10c, the door opening button 3, and the door closing button 4 are normally open contacts (a contacts) of the failure detection relay 13.
13a and power failure detection relay 14 normally closed contact (b contact)
Both 14b have the normal function because both are open,
When the elevator failure detection circuit 8 detects an elevator failure, the failure detection relay 13 operates to close the contact 13a. As a result, the call buttons 10a, 10b, 10c,
The door open button 3 and the door close button 4 are connected to the intercom starting circuit 7, and the car call buttons 10a, 10b,
The intercom can be activated by pressing any of 10c, the door open button 3 and the door close button 4.

Also in the case of elevator power failure, when the elevator failure detection circuit 8 detects a power failure, the power failure detection relay 14 operates to close the normally closed contact 14b. As a result, car call buttons 10a, 10b, 1
0c, the door open button 3, and the door close button 4 are connected to the intercom activation circuit 7 and are connected to the car call buttons 110a and 110a.
The intercom can be activated by pressing any of b, 10c, the door open button 3, and the door close button 4.

[0019]

According to the present invention, when an elevator abnormality occurs, it is possible to communicate with the outside by pressing any button in the car, and visually impaired persons or children do not know the position of the call button when a containment failure occurs. The inconvenience of not being able to contact In addition, even if you do not know the function of the intercom call button or the push button, you can talk to the inside and outside of the car because the intercom operates just by touching the control panel.

[Brief description of drawings]

FIG. 1 is an intercom starting circuit diagram according to the present invention,

FIG. 2 is a conventional intercom activation circuit diagram.

[Explanation of symbols]

 1a, b, c 10a, b, c Car call button 2 Car call registration circuit 3 Door open button 4 Door close button 5 Door control circuit 6 Intercom 7 Interphone start circuit 8 Elevator failure detection circuit 13 Failure detection relay 14 Power failure detection relay

Claims (2)

[Claims] 1. An emergency call device for an elevator comprising a communication device provided in a car and a communication device provided in a management room outside the car, which is activated by an intercom call button of the communication device. An emergency call device for an elevator, wherein any push button on the inner operation panel can be used as a call button for the call device. 2. Each push button on the operation panel in the car
The circuit consists of two contact push buttons. One contact of each push button is used as a button for the operation panel, all the remaining contacts are connected in parallel, and this is connected in series to the contact of the elevator abnormality detection relay. The emergency call device for an elevator according to claim 1, wherein the emergency call device is connected in parallel to the intercom call button circuit of the communication device.