JPH07110752B2 - Elevator equipment monitoring equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for an elevator device, and more particularly to a monitoring device capable of preventing a tampering of a safety constituting a safety device provided on a door.

[Conventional technology]

In the case of an automatic elevator, a safety is provided at the tip of the door for safety reasons, and the opening button can be forced to reverse the closing door, so that the door will close again immediately after it is fully opened. . Therefore, if the forced reversal of the door is repeated due to the mischief of the safety, a large impact is applied to the door mechanism, the life of the door is shortened, and a failure may occur. Therefore, in order to solve this problem, for example, Japanese Patent Laid-Open No. 50-14
A door opening / closing control device disclosed in Japanese Patent No. 9039 has been proposed.

[Problems to be Solved by the Invention]

By the way, generally, a passenger elevator is not provided with a door opening / extending device that can open the door for a predetermined time when operated for cargo handling. At this time, there is a method in which a piece of paper is sandwiched between the door and the safety in order to intentionally operate the safety, or a luggage is placed on the front surface of the safety to forcibly prevent the closing operation of the door. In this way, if you intentionally operate the safety and try to prevent the door from closing, if a piece of paper falls off and locks, or if a load that is not so heavy compared to the door closing force is placed. In the baggage, there is a gap between the baggage and the safety,
There is a concern that the safety operates again and the forced reversal is repeated as described above to give a large impact to the door mechanism, which shortens the life of the door mechanism and damages the elevator.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to call attention so as to stop the operation when the safety that intentionally blocks the closing operation of the door is operated, and subsequently, the safety is continued. An object of the present invention is to provide a monitor device for an elevator that is judged to be out of order when operating.

[Means for Solving the Problems]

In order to achieve this object, the present invention is directed to monitoring of an elevator apparatus provided with a safety device that is provided at a front end of a door and that prevents the opening operation of the door when the door is operated and reverses the door when it is closing. In the device, when the safety is operated for a first predetermined time, or when the safety is operated for a first predetermined number of times within the first predetermined time, an alarm for causing a person operating the safety to stop the operation. The safety device further includes a warning device that emits an alarm, and is separated from the door when the safety is further continuously operated for a second predetermined time or when the safety is operated a second predetermined number of times within the second predetermined time. It is configured to include a reporting device for reporting to a predetermined management office provided at a position.

[Action]

According to the present invention, since the safety device provided at the front end of the door that prevents the closing operation of the door is intentionally operated for a long time, the alarm device stops the operation of the safety device because of the above-described configuration. If the safety operation continues, it is determined that a failure has occurred, and a warning is issued to a designated control center located away from the door. It is possible to prevent a decrease in the operation efficiency of the elevator due to a deliberate operation such as the above and a failure of the elevator due to the decrease.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit configuration diagram showing an embodiment of a monitoring device for an elevator apparatus according to the present invention.

In the figure, 1 is a safety switch that is provided at the front end of the door and that constitutes a safety device that prevents the closing operation of the door when it is operated and reverses the closing door. 2 is the state of the safety switch 1. A detection relay for detection, 2A is a normally closed contact of the detection relay 2, 4 is an auxiliary relay responding to the detection relay 2, 4A and 4B are normally open contacts of the auxiliary relay 4, 6 is a safety for a first predetermined time, for example, 3 When operating for a minute, or the first predetermined number of times within 3 minutes,
For example, a first counting device that outputs an output when it is operated 10 times,
Reference numerals 6A and 6B are normally open contacts of the first counting device 6, and 8 is an alarm device for issuing an alarm to alert the person operating the safety to stop the operation, for example, a buzzer or a broadcasting device. Etc. 11 is a second counting device which outputs when the safety operates for a second predetermined time, for example, 8 minutes after 3 minutes have passed, or when the safety operates for a second predetermined number of times, for example, 30 times within 8 minutes, 11A
Is a normally open contact of the second counting device 11 and 13 is a reporting device that determines that the elevator is out of order and reports to a maintenance center of a maintenance company or a predetermined management place such as a management room in a building where the elevator is installed. Is. Reference numeral 14 is a normally closed contact for the confirmation relay when the door is closed.

Next, the operation of the above configuration will be described.

Preventing the closing action of the door provided at the front end of the door, for example, mischief, flipping the closing door and slipping a piece of paper between the doors, or placing luggage on the front of the safety door. When the closing operation is intentionally blocked, the switch 1 releases, the detection relay 2 releases, the contact 2A is closed, and the auxiliary relay 4 is energized accordingly. The normally open contact 4A is closed by the urging of the auxiliary relay 4 and the first counting device 6 starts counting, and when counting for a first predetermined time, that is, 3 minutes, or a first predetermined number of times within 3 minutes. That is, when counting 10 times, the first counting device 6 outputs an output. As a result, the contact 6A is closed, and the alarm device 8 including a buzzer or a broadcasting device issues an alarm to alert the person who operates the safety to stop the operation. In addition, the contact 6B is interlocked with the contact 6A described above.
Are closed by the output of the first counting device 6. In addition,
The contact 4B is closed by the energization of the auxiliary relay 4 in response to the detection relay 2, and the second counting device 11 starts counting. When the second counting device 11 counts a second predetermined time, that is, 8 minutes after the above-mentioned 3 minutes, or when it counts a second predetermined number, that is, 30 times within the 8 minutes, An output is emitted from the second counting device 11. As a result, the contact 11A is closed, and the notification device 13 notifies the predetermined management office, that is, the monitoring center of the maintenance company, or the management room in the building where the elevator is installed, that the elevator has failed. . Reference numeral 14 is a resetter normally-closed contact that does not operate the first counting device 6 by being opened when the door is closed.

According to the present embodiment, when the safety is intentionally operated for a long time, the warning of the alarm device 8 is used to call attention so as to stop the operation of the safety, and when this operation continues, the elevator fails. Then, the notification device 13 operates. As a result, the intentional movement of the safety is prevented, and the forced reversal of the door is prevented from being repeated. Therefore, the life of the door mechanism is extended, and the failure of the elevator due to the intentional operation of the safety can be reduced.

〔The invention's effect〕

According to the present invention, because of the above-described configuration, if the safety that prevents the closing operation of the door is intentionally operated for a long period of time, the person who operates the safety is alerted to stop the operation. If the operation is continued, it is judged as a failure and a warning is issued to a predetermined control station located away from the door.Therefore, the operation efficiency of the elevator accompanying the intentional operation of the safety system such as mischief It is possible to prevent the deterioration of the vehicle and the failure of the elevator.

[Brief description of drawings]

FIG. 1 is a circuit configuration diagram showing an embodiment of a monitoring device for an elevator apparatus according to the present invention. 1 ... Safety switch, 2 ... Detection relay, 2A
...... Normally closed contact, 6 …… First counting device, 6A, 6B …… Normally open contact, 8 …… Alarm device, 11 …… Second counting device, 11A…
… Normally open contact, 13 …… Notification device, 14 …… Reset normally closed contact.

Claims (1)

[Claims] 1. A monitoring device for an elevator apparatus, comprising a safety device, which is provided at a front end of a door and which prevents the opening operation of the door when the door is operated and reverses the door when the door is being closed. And an alarm device for issuing an alarm for stopping the operation of the person operating the safety when the operation is performed for a predetermined time of 1 or when the operation is performed a first predetermined number of times within the first predetermined time. A predetermined management place provided at a position separated from the door when the safety is further continuously operated for a second predetermined time or when the safety is operated a second predetermined number of times within the second predetermined time. A monitoring device for an elevator device, comprising a reporting device for reporting to an elevator.