JPH07291561A - Door controller of emergency elevator - Google Patents

Abstract

PURPOSE:To prevent a disaster of flame by opening and closing only while a door opening button or door closing button is continuously depressed when an emergency elevator is set to a fire fighting running mode. CONSTITUTION:When a door opening button CBa is continuously depressed in a fire fighting running mode, a relay 12 is energized to close a contact 12a, energize a relay 22 and start to open the door. Then, when the door opening button CBa is released, the relay 12 is deenergized, the contact 12a is opened, the relay 22 is deenergized and the door is immediately stopped. Next, when a door closing button CBa is continuously depressed, the relay 11, relay 20 and relay 21 are energized and the door begins to be closed. Then, when the door closing button CBa is released, reversely the relay 21 is deenergized and the door is immediately stopped.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art In a building, an emergency elevator is installed for fire fighters to extinguish or rescue people in case of fire.

This emergency elevator is the Japan Elevator Standards Collection JEAS-C40 of the Japan Elevator Association.
As described in No. 1 (Mark 63-3), when the call back switch provided in the hall or the control room is operated, the passenger returns to a specific floor, for example, the first floor, and waits.

Then, when a firefighter gets in the car and turns on the primary fire-fighting switch provided in the car, the elevator is switched to the fire-fighting operation mode. Then, the fireman keeps pushing the car call button on the destination floor until the car is activated, the car departs toward the destination floor, and when the car arrives at the destination floor, the door automatically opens and waits.

[0005]

By the way, in the above-mentioned prior art, when a fire has occurred at the destination floor and the flame has already reached the elevator hall, when the door is fully opened, the flame enters the car. The problem was that it was very dangerous.

In view of the above-mentioned drawbacks, the present invention is an emergency elevator door in which a fireman in the car can prevent damage due to flames when the car arrives at the destination floor during fire fighting operation. It is to provide the control device.

[0007]

The object of the present invention is to control a door of an emergency elevator equipped with a fire-fighting operation mode, when the emergency elevator arrives at a destination floor in the fire-fighting operation mode, a door open button or This is achieved by providing means for validating the door opening operation or the door closing operation only while the door closing button is continuously operated.

[0008]

According to the present invention, since a fire broke out on any floor of the building, it is assumed that the firefighter arrived at the fire floor on the emergency elevator from the standby floor. At this time, the door will not open as it is. So, if the firefighter presses the door open button for a short time, the door opens a little. At this time, the fireman looks at the landing through the door gap, and if there is no abnormality, keep pressing the door open button, open the door, and if an abnormality occurs, immediately press the door close button, Close the door.

As described above, the door can be opened or closed only while the firefighter continues to press the door open button or the door close button.

[0010]

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

FIG. 2 is a front view of the operation panel in the car of the emergency elevator. In FIG. 2, reference numeral 1 denotes an operation panel, and the operation panel 1 has a primary fire switch E1 for performing fire fighting operation.
B, secondary fire switch E2B, door open button OB and door close button CB for manually opening or closing the door, car call buttons 1C to 5C on the first to fifth floors for registering the car destination floor, car destination Ascending and descending indicator lights 6U and 6D for indicating the direction, and an emergency button 7 for notifying the control room and the like are provided.

FIG. 1 is an electrical connection diagram showing an embodiment of a control device for an emergency elevator door according to the present invention. In FIG. 1, P and N are DC power supply terminals, CBa is a contact of a door closing button CB, 11 is a relay that is activated when the door closing button CB is pressed, 11a is its a contact, and 11b is its b contact. , OB
a is a contact of the door open button OB, 12 is a relay that is energized when the door open button OB is pressed, 12a is its a contact, 12b is its b contact, E1Ba is the contact of the primary fire switch E1B, and 8 is A relay that is activated when the primary fire protection switch E1B is turned on.
8b4 is its b contact, 20 is a relay for the door closing command, and the car is driven from the door closing command until the car starts decelerating to a predetermined floor, 20a1 and 20a2 are its a contacts, and 21 is for the door closing. In the relay, 21b is its b contact, CLb is a b contact of a relay (not shown) that detects that the door is completely closed, 2
2 is a relay for opening the door, 22b is its b contact, OLb is a b contact of a relay (not shown) that detects that the door is fully opened, OLa is its a contact, and DZa is a car that stops within the door opening range. A contact for detecting that the car is running, 31a is a contact of a relay (not shown) that is energized when the car is running,
Reference numeral 31b is its b contact, 32b is a relay b contact (not shown) that is energized when the car is decelerating, 23T is a timer that is energized, for example, 3 seconds after a predetermined time after the door is fully opened, and 23Ta is its a contact. Is.

Next, the operation of this embodiment will be described.

First, the case of the normal operation mode will be described. In this case, the primary fire fighting switch E1B is not turned on. Therefore, since the contact E1Ba is open, the relay 8 is deenergized, the contacts 8a1 to 8a2 are open, and the contacts 8b1 to 8b4 are closed.

Now, when the car begins to decelerate, contact 32b opens, relay 20 deactivates, and contact 20b closes. When the car arrives at the destination floor, the contacts DZa and 31b are closed, so P-DZa-31b-20b-8b3-21b-O.
The circuit of Lb-22-N is formed and the relay 22 is energized. Then, the door begins to open, and when the door is fully open, contact point O
Lb is opened and the relay 22 is deenergized. On the other hand, the contact point OLa
Is closed, a circuit of P-OLa-8b4-23T-N is formed, and the timer 23T starts counting. For example, 3
After a lapse of seconds, the timer 23T operates, the contact 23Ta is closed, a circuit of P-23Ta-12b-32b-20-N is formed, the relay 20 is energized, and the contact 20a1 is self-held. Then, the contact 20a2 is closed and P-
When the circuit of 20a2-22b-CLb-21-N is formed, the relay 21 is energized, and the door is closed, the contact CL
b is opened and the relay 21 is deenergized. Then, drive toward the destination floor.

Next, the case of the fire fighting operation mode will be described.
When a fire breaks out and the primary fire switch E1B is turned on,
The contact E1Ba is closed, the relay 8 is energized, and the contact 8a1
~ 8a2 are closed and contacts 8b1-8b4 are opened.

[0017] Now, on the standby floor, if the firefighter continues to press the car call button on the destination floor, which is the fire floor, the car will travel toward the destination floor and arrive. Similarly to the above, the relay 20 is deenergized and the contact 20b is closed, but since the contact 8b3 is open, the relay 22 is not energized. Therefore, even if the car is stopped, the door remains closed. Therefore, if the firefighter keeps pressing the door open button OB, the relay 12
Is energized, the contact 12a is closed, and P-12a-8a2-
21b-OLb-22-N circuit is formed, and relay 2
2 is urged and the door begins to open. When the fireman releases the door open button OB, the relay 12 is deenergized, the contact 12a is opened, the relay 22 is deenergized, the door is immediately stopped, and the door is in a half-open state. Therefore, when the firefighter sees the state of the fire in the landing through the door gap and determines that it is not dangerous, if he continues to press the door open button OB again, the door will start to open and the door will open completely by the same operation as above. , The contact OLb is opened, the relay 22 is de-energized, and the fireman can release the door open button OB to get off at the landing. On the other hand, when it is determined that there is a danger, the door open button OB is immediately released and the door close button CB is continuously pressed. By this operation, the relay 11 is energized and the contact 11
a is closed, the circuit of P-11a-12b-32a-20-N is formed, the relay 20 is energized, the contact 20a2 is closed, and the circuit of P-20a2-22b-CLb-21-N is formed. The door begins to close. When the door close button CB is released, the relay 11 is deenergized, the contact 11a is opened, the relay 12 is deenergized, the contact 12a is opened, the relay 22 is deenergized, and the door is stopped. When the door close button is continuously pressed, the relay 11, the relay 20, and the relay 21 are energized, the door starts to close, and when the door is completely closed, the contact CLb opens,
The relay 21 is deactivated. At this time, even if the door open button OB is pressed, the contact 11b is opened, so the relay 12 is not energized, and therefore the door is not opened, which is safe.

As described above, since the door opening / closing operation is performed only when the firefighter continues to manually operate the door opening button OB or the door closing button CB, the safety of the firefighter can be ensured.

[0019]

According to the present invention, in the fire fighting operation mode, the door is opened only while the door open button is kept pressed, and the door is closed only while the door close button is kept pressed. As a result, firefighters have the effect of being able to prevent disasters due to flames.

[Brief description of drawings]

FIG. 1 is an electrical connection diagram of an emergency elevator door control device according to an embodiment of the present invention.

FIG. 2 is a front view of an operation panel in a car.

[Explanation of symbols]

 20 Door closing command relay 21 Door closing relay 22 Door opening relay CB Door closing button E1B Primary fire protection switch OB Door opening button

Claims (1)

[Claims] 1. A door control device for an emergency elevator having a fire fighting operation mode, wherein when the emergency elevator arrives at a target floor in the fire fighting operation mode, the door open button or the door close button is continuously operated. A control device for an emergency elevator door, characterized in that it is provided with means for validating a door opening operation or a door closing operation only while the door is open.