JPS6067382A - Controller for elevator - 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] [Field of Application of the Invention] The present invention relates to an elevator control device, and particularly to a control device for preventing an elevator from becoming inoperable even if door closing is artificially obstructed. The invention relates to a control device for preventing

[Background of the invention]

In conventional elevators, does the light hit the safety shoe installed at the end of the door? The system is such that the movement of the door in the closing direction is stopped by blocking or by the operation of a similar detection device, and the door that is closing is reversed and opened.

These devices are designed to allow passengers to use elevators safely without getting caught in the door, but if they are misused due to human mischief,
The elevator becomes stuck to that floor and cannot be serviced.

In order to prevent this, methods have been used to sound a buzzer or the like if the door is left open for a certain period of time to warn the user to stop the prank, but is this still a prank? In many cases, the elevator does not stop, and the elevator is unable to operate for a long time, so the backup system is activated, and it is considered a failure, and after μ, the elevator is not serviced. However, this method requires the mobilization of maintenance personnel to restore it, which requires a large amount of work.

[Purpose of the invention]

An object of the present invention is to provide a control system that eliminates mischief-makers, thereby eliminating the need for maintenance personnel.

[Summary of the invention]

Interfering with the operation of the door in the closing direction due to an artificial prank is an attempt to stop all movement of the door in the closing direction, so if the door stops closing, there will be no target for the prank, and there will be no money left to stop the prank. You won't get any more. However, simply stopping the closing operation simply means that the elevator has stopped operating, and the purpose of eliminating mischief-makers is not achieved. Therefore, if the prank continues for more than a certain period of time, the elevator -? As a temporary malfunction, they turned off the ceiling lights, etc., making the elevator unusable, causing the person who played the prank to say, ``I caused the elevator to malfunction.''
The system makes people feel guilty and forces them to leave the area, and then after a certain period of time (the amount of time that the person responsible for the mischief would have left) has passed, the temporary malfunction is canceled and normal operation is resumed.

Furthermore, if this continues many times, the regular backup system should be operated, and the number of repetitions to operate the backup system shall be determined as appropriate in carrying out the present invention. [Embodiments of the Invention] DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to all drawings.

The figure is a circuit diagram in which if the door does not close completely even after a predetermined period of time has elapsed since the door closing command was issued, a temporary failure occurs in the elevator.

Now, when the door close command relay 100 (operating coil circuit is omitted) is turned on, the timer TA starts counting and turns on after a certain period of time. TAON causes a self-hold at Tλ1, and at ']'A2 and TA3, the timer TB is started and the ceiling light etc. turn off relay LT6 is turned on.
Then, turn off the ceiling lights, indicators, etc.
At 'l'A4, the door opening command relay OPR is ONL, and the door opens. At this time, relay 0PR with 0PRi
If self-hold, door close command relay CL at 0PR2
Leave the R input circuit at OF'FL. Here, CLS indicates a contact point of a close limit switch, and OLS indicates a contact point of an oven limit switch, and each terminal is opened to prevent unnecessary relay coil excitation. In this state, the elevator is temporarily out of order, but the timer TB
When a certain time period N passes, '1' B1.TB2 QF'F' TA and LTO, and 'J'
At B3, the door closing command relay CLFl'ONL elevator turns on the ceiling light, etc., starts closing the door, and returns to normal operation. Relay CLR self-holds by CLRI and C
It is turned off at the closed end by LS.

〔Effect of the invention〕

According to the present invention, even if the side door does not close due to human mischief, it is assumed to be a temporary failure before the backup system such as the door motor protection device operates, so there is no one to do the mischief, and maintenance staff can The mobilization of
Effective in reducing labor costs.

[Brief explanation of the drawing]

The figure is a circuit diagram of an embodiment of the present invention.

Claims (1)

[Claims] 1. Detecting interference with the elevator door closing operation,
In the method for restricting the door closing operation, the elevator is characterized in that when the disturbance continues for a predetermined period of time or more, the entire elevator is stopped and a means is provided for returning to normal operation after a specified period of time. Control device.