JPS58207279A - Method of controlling elevator door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Description of the Technical Field The present invention relates to a method for controlling elevator doors.

(b) Description of Prior Art Elevators usually have a door open button and a door close button inside the car, and passengers in the car can control the opening and closing of the doors by operating the buttons, but fully automatic elevators In this system, the door starts to close after a certain period of time has elapsed after the door is opened, even without any operation by the passenger.

However, even in fully automatic elevators, if there are passengers in the car, the door open button on the control panel inside the car,
Operate the elevator door by operating the door close button. That is, when there are passengers in the car, if there are passengers trying to enter or exit the elevator car, the passengers in the car press the door open button and keep the door open. In addition, when there are no passengers entering or exiting the elevator car, in order to eliminate wasted time even during the door opening time that is set for normal elevators,
The passenger in the car immediately presses the door close button to close the door.

However, if there are no passengers in the car, and no one operates the door close button, the elevator door will close during the door open time, even if no passenger enters or exits the elevator car. Keep opening. In such a case, passengers waiting for the elevator to arrive on other floors will have to wait impatiently because the elevator will not arrive for a long time.

(c) Object and Summary of the Invention The present invention has been made in view of the above points, and provides an elevator door control method for keeping the door open for a predetermined period of time. If there are no passengers entering or exiting the elevator, this system will detect this and immediately issue a closing command to the elevator door to close the door, eliminating unnecessary door opening time and allowing passengers to wait on other floors for the elevator to arrive. To provide an elevator door control method with improved service.

(d) Full Example Embodiments of the present invention will now be described with reference to the drawings. Fig. M1 and Fig. 2 show an embodiment of the configuration used in the elevator door control method of the present invention. In Figure 1,
An energy wave transmitting device fi6 and a receiving device 7 are provided on the car l. Energy wave 6 transmitted from transmitter 6
By receiving the presence or absence of the reflected wave a at the receiving device 7, it is possible to detect the presence or absence of passengers 4 or objects entering and exiting the elevator car.In FIG. A signal generated by the reflected wave of the energy wave 6a is transmitted to a detection device 8, which detects the presence or absence of passengers 4 or objects entering and exiting the elevator. In addition, the load detection device 10 is provided in the car, and when the load in the car exceeds a predetermined value, for example, when a passenger
It works even when there are people on board. Signals from the detection device 8 and the load detection device are input to the door closing control device 9.

The door driving device 11 starts the closing operation of the elevator door in response to a closing signal from the door closing control device 9.

FIG. 3 11C shows an embodiment of the circuit configuration of the door closing control device 9 shown in FIG. 2 according to the present invention.

In FIG. 3, 12:1 is a relay for opening and closing the door, and the normally open connection is transmitted to the door driving device 11 to control the opening and closing of the elevator door. 12a and 12b are normally open contacts of the door opening/closing relay 12, and 13 is an on-delay timer energized by the normally open contact 12b of the door opening/closing relay 12. A predetermined time required is set as the door opening time. 13a is a normally closed contact of the timer.

14 is a contact point for a door fully open detection switch that opens when the elevator door approaches the fully open position; 15 is energized in one shot by a commonly used elevator control circuit (not shown) when the door opening condition is established; Normally open contact of the relay for door open command (not shown), which is activated before the door is fully opened, 16
8a and 10a are the output contacts of the detection device 8 and the load detection device 10, respectively, which are the normally closed contacts of an operating relay (not shown) that is energized while the elevator is in operation, and when a human body is being detected, Or close the contact when a load greater than the reference value is detected.

When the elevator stops, the door opening condition is satisfied, the door opening/closing relay 12 is energized by the door opening command relay contact 15 and the operation relay contact 16, and the elevator door is opened.

When there are passengers 4 going in and out of the elevator or there is a load inside the car, this door opening/closing relay 12 closes at contact 8a or 1.
0a, 13a, and 12a, the on-delay timer 13 (D) is self-held until the door open time elapses and the contact 13a opens, so the elevator door remains open until then.

If there are no passengers 4 going in or out of the elevator, there is no load in the car, and contacts ga and toa are open, the above-mentioned self-holding circuit will not be established, so contact 14
, 12a only while the self-holding circuit is established.
12 door opening/closing relays are energized. Since the contact 14 opens when the door is fully opened, the contacts 12b and 13a open, and the elevator door starts its closing operation immediately after it is fully opened.

According to the present invention, if the operating value of the load detection device 1o is set to a predetermined setting value, the load detection device 1o will not operate when there is no passenger 5 in the car. In addition, when there are no passengers 4 entering or leaving, the energy wave 6a transmitted from the transmitting device 6
Since the receiving device 7 does not detect the reflected wave of
doesn't work.

In the above case, the door closing control device 9 immediately controls the door driving device 1t.
In order to give the command to ll to close the door, once the door is fully opened, it immediately begins to close.

Further, if there is a passenger 5 in the car or if there are passengers 4 entering or leaving the car, contrary to the above, the load detection device 10 moves Fr=j or the detection device 8 operates.

Therefore, the door closing control device 9 does not immediately give a door closing command to the door driving device 11.

<e+ According to the present invention, as described in detail, the elevator does not keep its doors open unnecessarily, and only when a passenger who is about to board the elevator is in a chair or a passenger is in the car. Since the door closes immediately after exiting from the side, passengers waiting for the elevator on other floors can board the elevator sooner, improving service to passengers.

[Brief explanation of the drawing]

Fig. 441 is a schematic diagram of an elevator car and landing showing an embodiment of the present invention, Fig. 2 is a block diagram showing an embodiment of the elevator door control device of the invention, and Fig. 3 is a door closing control shown in Fig. 2. FIG. 3 is a circuit configuration diagram of the device. 1...Elevator or 2...Elevator car door 3...Elevator landing door 6...Energy wave transmitter 6a...Energy wave 7...Energy wave Receiving device 8 ... Detection device 9 ... Door closing control device 1
0... Load detection device it 11... Door drive device 12... Door opening/closing relay 13... Timer 1
4... Door open detection switch 15... Door open command relay contact 16... Operation relay contact □. (7317) Agent: Patent Attorney Noriyuki Chika (
1 other person) Figure 1 Figure 2

Claims (1)

[Claims] Door Opening: A method for controlling an elevator door that keeps the door open for a predetermined period of time, the method comprising: a transmitting device that transmits energy waves to an elevator car; and a receiver that receives reflected waves of the energy waves caused by passengers entering and exiting the elevator car. and a load detection device that operates when the car internal load exceeds a predetermined value, and when there is no reflected wave from passengers entering and exiting the elevator and the load detection device does not operate,
01m to immediately give the command to close the elevator door.
How to control elevator doors