JPS6243979Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an elevator operation control device.
In particular, the present invention relates to an elevator operation control device for preventing mischievous operation of elevators applied to private residences and the like.

Elevators for private residences use a system in which the upper doors are manually opened and closed to reduce costs.

However, when the doors are opened and closed manually, the doors do not open automatically even when the elevator car stops at the called floor, so people riding in the elevator car, such as children, are forced to repeatedly take the elevator without opening the door. There was a problem with the vehicle being run and being tampered with.

This invention solves the above problem, and when the elevator repeatedly runs without opening or closing the doors, it is determined to be tamper driving and the elevator is stopped or an alarm is issued to prevent tamper driving. The purpose of the present invention is to provide an elevator operation control device.

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

FIG. 1 is a circuit showing an example of an elevator operation control device according to this invention for preventing tamper operation, in which 1 is an electromagnetic contactor for lifting a car;
A car lowering electromagnetic contactor 1 is shown, and this car raising electromagnetic contactor 1 has a self-holding contact 1a and a normally open contact 6a of a rising operation command relay connected in parallel to this.
and the normally closed contact 2c of the car lowering electromagnetic contactor 2 and the normally open contact 9a of the stop point detection relay, which is activated by the operation command and deenergized when the car reaches the stop point on the destination floor.
The car lowering electromagnetic contactor 2 is connected in parallel to the self-holding contact 2a and the normally open contact 7a of the lowering operation command relay connected in parallel to the car lowering electromagnetic contactor 2. It is connected in parallel between the DC control buses 10 and 11 via the normally closed contact 1c of the electromagnetic contactor 1 and the normally open contact 9a of the stop point detection relay.

Further, 5 is a car running operation detection relay connected in parallel between the DC control buses 10 and 11, and the power supply circuit of this detection relay 5 includes its self-holding contact 5.
a, a normally open contact 3a that closes when the car door is closed, a normally open contact 4a that closes when the landing door is closed, and a self-holding contact 5a of the detection relay 5 are connected in series. includes a series circuit between the normally open contact 6b of the ascending operation command relay and the normally open contact 1b of the ascending electromagnetic contactor 1, and a series circuit between the normally open contact 7b of the descending operation command relay and the normally open contact 1b of the descending electromagnetic contactor 2. A series circuit with open contact 2b is connected in parallel. Reference numeral 8 denotes a self-holding contact 8a and a normally open contact 5b of the car running operation detection relay 5 connected in parallel thereto.
A time relay 8 is connected in parallel between the control bus bars 10 and 11 via a time limit relay 8. When this time limit relay 8 is energized, it operates after a certain period of time, and when it is de-energized, it immediately returns to normal operation. The normally closed contact 8c of the relay 8 is connected in series to the power supply circuit of the above-mentioned car raising and car lowering magnetic contactors 1 and 2, and when the normally closed contact 8c is opened, the magnetic contactors 1 and 2 are deenergized. In other words, the elevator is stopped. Further, 12 is an alarm device, and this alarm device 12 is connected in parallel between the DC control buses 10 and 11 via the normally open contact 8b of the time relay 8.

Next, the operation of the operation control device according to the invention configured as described above will be explained.

In this embodiment, the landing door and the car door are configured to be opened and closed manually, and the time relay 8 is configured so that the elevator car runs from the bottom floor to the top floor with the car's rated load. The time limit is set to be slightly longer than the time required for

Now, when the landing door and the car door are closed, when the ascending operation command relay operates due to a car call, etc., its normally open contacts 6a and 6b are closed.
At the same time, the normally open contact 9a of the stop point detection relay is also closed. For this reason, the car lifting electromagnetic contactor 1 is energized, and accordingly, the car shifts to lifting operation, and the contacts 1a and 1b are closed, and the contact 1c is opened.
When the contact 1a is closed, the lifting electromagnetic contactor 1 is self-retained, and the car continues its lifting operation. Furthermore, when the contact 1b is closed, the normally open contacts 3a and 4
Since a is turned on when the door of each car and landing is closed, the timed relay 8 is energized, but the elevator car stops at the destination floor before the set time of the timed relay 8 and closes the door of the car or the landing. When the door is opened,
Since the normally open contact 3a or 4a associated with this is turned off, the time relay 8 is deenergized and is not operated. In addition, when the elevator is operating downward from the upper floor to the lower floor, contact 7a of the descending operation command relay,
7b is closed, and as a result, the car lowering electromagnetic contactor 2 and the car running operation detection relay 5 are energized, and the elevator car is operated downward. In this case as well, if the car and landing doors are opened after the car has stopped at the destination floor, the time relay 8 will be deenergized. Therefore, during normal operation of the elevator, the time relay 8 will be activated. without being
The alarm 12 is also not activated.

However, if the elevator is operated using the operation button on the landing or the operation button inside the car, and the doors are not opened or closed, so-called mischievous operation, in other words, if the elevator is repeatedly operated without opening or closing the doors, the setting When the time limit elapses, the time relay 8 operates, turning on the normally open contacts 8a and 8b and turning off the normally closed contact 8c. When the contact 8a turns on, the time relay 8 is self-held, and when the contact 8b turns on, the power supply circuit of the alarm 12 is closed and an alarm is issued, which alerts anyone who is mischievous in the hall or in the car. At the same time as calling for attention, contact 8c is turned OFF to deenergize the electromagnetic contactor for ascending or descending, causing the elevator to come to a sudden stop.

Figure 2 shows another embodiment of this invention in which the elevator is stopped and prevented from restarting after the elevator car arrives at the destination floor after mischievous operation is detected. Parts indicated by the same reference numerals as in the figure have the same configuration and function, and 1d and 2d are normally open contacts of the ascending and descending electromagnetic contactors 1 and 2, respectively.
d and 2d are connected in parallel to a time relay contact 8c connected to the power supply circuit of the ascending and descending electromagnetic contactors 1 and 2.

In the embodiment of FIG. 2 configured in this manner, when the time relay 8 is activated due to the determination that the elevator is being operated tampered with,
The contacts 8a and 8b are turned on, and the contact 8c is turned on.
However, since the contact 1d or 2d is turned on by the electromagnetic contactor 1 or 2 for ascending or descending, even if the time relay 8 operates, the elevator in ascending or descending operation will not be suddenly stopped immediately. Therefore, when the elevator car that is in ascending or descending operation reaches the destination floor, the normally closed contact 9a of the stop point detection relay is turned OFF, thereby deenergizing the ascending or descending magnetic contactor 1 or 2, and the elevator car The elevator will be stopped when it reaches the destination floor.
and prevent reboot.

As described above, according to this invention, when the elevator is repeatedly operated without opening or closing the doors of the landing or car, this is determined to be mischief operation and the elevator is stopped or an alarm is issued. This has the effect of preventing mischievous operation of the elevator by children and the like, and also preventing accidents caused by mischievous operation.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an example of an elevator operation control device according to this invention, and FIG. 2 is a circuit diagram showing another embodiment of the elevator operation control device according to this invention. DESCRIPTION OF SYMBOLS 1...Magnetic contactor for raising the car, 2...Magnetic contactor for lowering the car, 3a...Normally open contact operated by the car door, 4a...Normally open contact operated by the landing door, 5...
Car running operation detection relay, 6a, 6b... Normally open contact of the upward operation command relay, 7a, 7b... Normally open contact of the downward operation command relay, 8... Timed relay, 9a... Normally open contact of the stop point detection relay, 12... alarm.

Claims (1)

[Scope of utility model registration request] In an elevator where the door is opened and closed manually, an electromagnetic contactor for raising the car and an electromagnetic contactor for lowering the car are controlled by an operation command and stop point detection, and an electromagnetic contactor for raising or lowering the car according to the operation command. a car running operation detection relay that is activated by the car and deenergized by opening and closing a door; and a car running operation detection relay that operates a predetermined time after being energized by the car running operation detection relay, and when this operation is activated, it is determined that the elevator is being tampered with. An elevator operation control device comprising: a time-limited relay that determines this and stops the elevator or controls the elevator with an alarm.