JP2007197172A - Abnormality detection device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormality detection device of an elevator capable of performing operation for emergency for stopping at the nearest story when, for example, an earthquake and a strong wind occur during the traveling of a car and performing abnormality detection operation simultaneously with the start of operation for emergency automatically. <P>SOLUTION: In this abnormality detection device of the elevator capable of performing the operation for emergency for stopping at the nearest story by an earthquake time emergency operation device 7 if an earthquake sensing device 6 operates when an earthquake occurs, the abnormality detection operation during a period of time until the elevator arrives at the nearest story is performed simultaneously with the start of the operation for emergency. If an abnormality is detected during the abnormality detection operation during the period of time until the elevator arrives at the nearest story, the elevator is stopped in an emergency. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator abnormality detection apparatus that automatically performs abnormality detection operation simultaneously with the start of the control operation in an elevator that performs control operation when an earthquake occurs, for example.

  2. Description of the Related Art Conventionally, a first detector that is operated by vibration of a predetermined level or more and a second detector that is operated by vibration larger than the first detector are provided, and when the first detector is operated, the car is positioned at the floor position. In addition, the operation of the elevator is stopped when the second detector is activated, and the elevator operation is resumed automatically or manually after a certain time when the second detector is not activated. When the second detector does not operate, when the elevator resumes operation, first perform a test operation in a state where the passenger car is unmanned, and then return to normal operation. An elevator operation method that stops at each floor and performs door opening and closing operations is known (for example, see Patent Document 1).

JP-A-60-171980

  In the conventional elevator operation method during an earthquake, when the building shake due to an earthquake exceeds a predetermined value, the seismic detector operates, and after the earthquake control operation, an abnormal test operation is performed for the elevator that has become dormant It is. However, many of the abnormalities in elevators due to earthquakes and the like have a problem that an earthquake occurs while the car is running, and occurs until it stops at the nearest floor in control operation. In addition, currently, abnormalities that occur during the stoppage of the nearest floor are not detected unless there is a significant impact on the operation of the elevator, which may cause problems that hinder driving. .

  The present invention has been made to solve the above-described problems. For example, in an elevator that performs a control operation that stops at the nearest floor when an earthquake or a strong wind occurs while the car is running, the control operation is started at the same time. Provided is an elevator abnormality detection device that automatically performs an abnormality detection operation.

  In the elevator abnormality detection device according to the present invention, when the seismic detector is operated in the event of an earthquake, the control operation for stopping the nearest floor is performed by the seismic control operation device. Anomaly detection operation up to the floor is performed.

  In the present invention, when an earthquake detector is activated in the event of an earthquake, control operation is performed such that the nearest floor is stopped by an earthquake operation control device. Since the operation is performed, it is possible to minimize the damage to the elevator equipment that occurs during the stoppage of the nearest floor during the control operation and to ensure the safety of the passengers. Even if an abnormality is detected in the nearest floor operation direction, the confinement of passengers can be reduced by setting the nearest floor in the reverse direction.

Embodiment 1 FIG.
FIG. 1 is a system configuration diagram showing the overall configuration of an elevator abnormality detection device according to Embodiment 1 of the present invention, and FIG. 2 is a diagram for explaining the operation of the elevator abnormality detection device according to Embodiment 1 of the present invention. It is a flowchart.

In FIG. 1, 1 is an elevator car, 2 is a counterweight, 3 is a hoisting machine, 4 is a deflector, 5 is a main rope, 6 is a seismic detector installed in the building, 7 is an earthquake control operation device, An earthquake detection means 8 and a control operation means 9 are provided. Reference numeral 10 denotes an abnormality detection device, which includes an abnormality detection means 11 and an inspection operation command means 12. Reference numeral 13 denotes an elevator control device.
When an earthquake occurs, the shaking of the building is measured by the earthquake detector 6, and the control operation is selected by the control operation means 9 according to the magnitude of the shake by the earthquake detection means 8 of the earthquake operation control device 7. When an earthquake occurs while the car is running and the control operation with the nearest floor stop is selected, a signal is sent from the control operation device 7 at the time of the earthquake to the abnormality detection device 10, and the abnormality detection means 11 starts detecting the abnormality. Is done. If an abnormality is detected by the abnormality detection device 10 during the closest floor stop of the control operation, an emergency stop signal is transmitted to the elevator control device 13 and the elevator is urgently stopped. This abnormality detection is performed using various signals such as a torque (current) of the hoisting machine 3, a hoisting machine encoder, and a scale signal.

Next, the operation flow of abnormality detection when an earthquake occurs will be described with reference to FIG.
When an earthquake occurs, the earthquake detector 6 operates (step S1), and the control operation is started by the control operation means 9 of the earthquake operation control device 7 (step S2). If the elevator is traveling at the start of the control operation (step S3), the abnormality detection device 11 starts the abnormality detection operation simultaneously with the control operation (step S4). Therefore, if an abnormality is detected by the abnormality detection means 11 before the nearest floor (step S5), the elevator is urgently stopped (step S6), and passenger safety is ensured. If no abnormality is detected until the nearest floor stop in step S5, the passenger in the car is lowered after the nearest floor stop and waits in a door-closed state until the earthquake converges (step S7, Step S7 '). Thereafter, as in the case of an elevator that is stopped when an earthquake occurs, the earthquake detection means 8 detects that the earthquake has converged, and the inspection operation command means 12 of the abnormality detection device 10 starts the inspection operation (step S8). . During inspection operation, an abnormality is detected using a signal similar to that used for detecting an abnormality.

Embodiment 2. FIG.
FIG. 3 is a flowchart for explaining the operation of the elevator abnormality detection apparatus according to Embodiment 2 of the present invention.
In the first embodiment, when an abnormality is detected in the middle of stopping at the nearest floor and the elevator is in an emergency stop, if there are passengers in the car, the car is in a confined state. Therefore, in this second embodiment, the following steps S9 to S14 are added after steps S1 to S6 in the first embodiment.
If there are passengers in the car that was urgently stopped in step S9, in the direction opposite to the driving direction headed for the nearest floor stop, that is, for example, when abnormality is detected in the upward direction, the downward direction is detected. The nearest floor operation is performed to the floor in the opposite direction aiming at the nearest floor (step S10). In that case, an abnormality detection operation is performed, and if an abnormality is detected by the abnormality detection means 11 until the nearest floor (step S11), the elevator is urgently stopped (step S12), and the elevator operation is impossible. Judgment and wait for recovery by dispatch of maintenance personnel. If no abnormality is detected before the nearest floor is stopped in step S11, the passengers in the car are lowered after the nearest floor is stopped (step S13). Thereafter, since an abnormality has occurred, the operation is suspended (step S14), and a recovery by the maintenance staff is awaited. Furthermore, for elevators in which an abnormality is detected in both the upward and downward directions (step S11-12), it is determined that the elevator is in a very dangerous state. Rescue work by dispatch may be performed. If there are no passengers in step S9, if an abnormality is detected during the first closest floor stop, the operation is suspended after an emergency stop (step S14). When driving in the opposite direction, an announcement is made to the passenger, and if the movement cannot be made in both the upper and lower directions, an announcement to the effect that the passenger has been notified is played.

  By adopting the configuration as described above, it is possible to minimize the damage to the elevator equipment that occurs during the stoppage of the nearest floor during control operation and to ensure the safety of passengers. Even if an abnormality is detected in the nearest floor operation direction, the confinement of passengers can be reduced by setting the nearest floor in the reverse direction.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the whole structure provided with the abnormality detection apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart for demonstrating operation | movement of the abnormality detection apparatus of the elevator in Embodiment 1 of this invention. It is a flowchart for demonstrating operation | movement of the abnormality detection apparatus of the elevator in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Balance weight 3 Hoisting machine 4 Baffle 5 Main rope 6 Earthquake detector 7 Earthquake operation control device 8 Earthquake detection means 9 Control operation means 10 Abnormality detection apparatus 11 Abnormality detection means 12 Inspection operation command means 13 Elevator Control device

Claims (4)

When an earthquake detector is activated when an earthquake occurs, in an elevator designed to perform the control operation to stop the nearest floor by the control operation device during an earthquake,
An elevator abnormality detection device that performs abnormality detection operation up to the nearest floor at the same time as the start of the control operation.   The elevator abnormality detection device according to claim 1, wherein when an abnormality is detected during an abnormality detection operation up to the nearest floor, the elevator is urgently stopped.   If an abnormality is detected during anomaly detection operation up to the nearest floor, the elevator is stopped urgently, and if there are passengers in the car, the nearest floor is set in the opposite direction of operation as described above, and control operation is performed. The elevator abnormality detection device according to claim 1, wherein:   The elevator abnormality detection device according to claim 3, wherein when an abnormality is detected in both upward and downward directions, a priority rescue is reported to the maintenance center.

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