JPH082861A - Controller for door of emergency elevator - Google Patents

Abstract

PURPOSE:To provide a controller for a door of an emergency elevator to prevent an accident of fire by opening and closing the door only while a door opening button or door closing button is depressed when the emergency elevator is set to a fire fighting mode. CONSTITUTION:When a door opening button OB is continuously depressed in a fire fighting mode, a relay 12 is energized to close a contact 12a, energize a relay 22 and begin to open the door. Then, when the door opening button OB is released, the relay 12 is deenergize the contact 12a is opened, the relay 22 is deenergized and the door is immediately stopped. Next, when a door closing button OB is depressed, a relay 11, relay 20 and relay 21 are energized to close the door.

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 this car, the elevator is switched to fire-fighting operation. And the firefighter keeps pushing the car call button on the destination floor until the car starts,
When the car departs for the destination floor and 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 provides an emergency elevator system capable of preventing a fireman in a car from being damaged by a flame when the car arrives at a target floor in the fire fighting operation mode. To provide a door 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 by pressing a door open button when the emergency elevator arrives at a destination floor in the fire fighting operation mode. This is achieved by providing a means for validating the door opening operation only while the operation is continued and a means for validating the door closing operation immediately when the door closing button is 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 firefighter looks at the landing through the door gap, and if there is no abnormality, keep pressing the door open button to open the door, and when an abnormality occurs, for example, when the flame is rotating. , You can release the door open button immediately and press the door close button to close the door.

[0009]

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 apparatus 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.
8b3 is its b contact, 20 is a relay for a door closing command, and the car is driven by the door closing command and is urged until deceleration starts to a predetermined floor, 20a1 and 20a2 are its a contacts, and 21 is a door closing command. 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,
22 is a relay for opening the door, 22b is its b contact, OLb
B of a relay (not shown) that detects when the door is fully open
A contact point, OLa is the a contact point, DZa is a contact point that detects that the car is stopped within the opening range of the door, 31a is an a contact point of a relay (not shown) that is energized when the car is running, and 31b is the contact point. b contact point, 32b is a contact point of a relay (not shown) which is energized when the car is decelerating, 23T is a timer which is energized, for example, 3 seconds after a predetermined time has elapsed after the door is fully opened, and 23Ta is its a contact point.

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 8a1-8a2 are open, and the contacts 8b1-8b3 are closed.

Now, when the car begins to decelerate, the contact 32b opens, the relay 20 deactivates, and the 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-8b2-23T-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 8b1-8b3 are open.

[0016] 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 travels toward the destination floor and arrives. Similarly to the above, the relay 20 is deenergized and the contact 20b is closed, but the contact 8b3
Relay 22 is not energized since is open. Therefore, even if the car is stopped, the door remains closed.
So, if the firefighter keeps pushing the door open button OB, relay 1
2 is energized, the contact 12a is closed, P-12a-8a2
A circuit of -21b-OLb-22-N is formed, relay 22 is energized, 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 fire condition of the landing through the door gap and determines that it is not dangerous, he or she continues to press the door open button OB again, and the door starts to open and the door opens 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 judged that the door is dangerous, the door open button OB is immediately released and the door close button CB is pushed. By this operation, the relay 11 is energized, the contact 11a is closed, a circuit of P-11a-12b-32b-20-N is formed, the relay 20 is energized, and the relay 20 contacts the contact 20.
It is self-held via a1. Contact 20a2 closes, P
The circuit of -20a2-22b-CLb-21-N is formed, and the door starts to close. And even if the door close button CB is released,
Since the relay 20 is held by itself, it has nothing to do with the door closing operation. When the door is completely closed, the contact CLb is opened and the relay 21 is deenergized. When the door open button OB is pressed during the door closing operation, the relay 12 is energized, and the relay 20,
The relay 21 deactivates and the door stops immediately.

As described above, the firefighter performs the door opening operation only while pressing the door opening button OB, and when it is judged that there is a danger during the door opening operation, the door opening button OB is immediately released,
Since the door closing operation is started by pressing the door closing button CB, it is possible to ensure the safety of the firefighter.

[0018]

According to the present invention, in the fire mode, the door opening operation is enabled only while the door opening button is continuously operated, and when the door closing button is operated, the door closing operation is immediately enabled. With this configuration, the firefighter has an effect of being able to prevent a disaster caused by a flame during the door opening operation.

[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 switch OB Door opening button

Claims (1)

[Claims] 1. A control device for a door of an emergency elevator having a fire fighting operation mode, wherein the door is only operated while the door open button is continuously operated when the emergency elevator reaches a destination floor in the fire fighting operation mode. An emergency elevator door control device comprising means for enabling the opening operation and means for immediately enabling the door closing operation when the door closing button is operated.