JPH11171423A - Automatic elevator resetting device for elevators - Google Patents

Abstract

(57) [Summary] The present invention provides a method for detecting earthquakes under certain conditions even when a second earthquake detector operates in addition to the first earthquake detector due to a large-scale earthquake. The present invention is to automatically return the device to a normal state, to immediately enable normal continuous operation, and to largely eliminate the inconvenience of the user. An abnormality detection circuit for detecting whether normal operation of an elevator is possible, and a jog operation for performing a low-speed vertical operation (inching operation) within a range of ± 1000 mm when the abnormality detection circuit determines that there is no abnormality. It incorporates a continuous operation circuit including an operation command circuit and a low sensor return circuit that automatically returns the second earthquake sensor (low sensor) when the inching operation command circuit is normal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator earthquake which operates continuously under a certain condition when a second earthquake detector is operated due to a large-scale large-scale earthquake. When operating device.

[0002]

2. Description of the Related Art As a prior art, as described in Japanese Patent Application Laid-Open No. Hei 8-169659, in order to minimize damage to an elevator and its attached parts in the event of an earthquake, various components and various components of the elevator are required. Measures have been taken, such as strengthening the seismic properties of related equipment. In addition, the elevator is linked with an earthquake sensor to ensure the safety of the passengers of the elevator in the event of an earthquake and to prevent the occurrence of unexpected accidents due to the serious deterioration of the elevator. An operating control device for an operating elevator during an earthquake is usually installed.

[0003] This earthquake control operation device includes a first seismic sensor that operates with a vibration that exceeds a relatively small first level, and a second earthquake that exceeds a second level that is larger than the first level. The earthquake control operation device is configured to stop the elevator at the nearest floor when the sensor operates when an earthquake occurs to prevent damage to the elevator components due to the occurrence of the earthquake. ing.

[0004] When only the first earthquake detector operates when an earthquake occurs, if the elevator is running, the elevator is temporarily stopped on the nearest floor, and the operation is suspended. Subsequently, the door is opened at the nearest floor that has stopped and the user is dropped down. After 15 seconds have elapsed since the door was opened, the door is closed again. At this time, if a user remains in the elevator car and the open button is pressed, the door is returned to the open state again, while there is no user in the elevator car and the door is open. When one minute has passed when the button is not pressed, a current is supplied to the automatic return coil of the first earthquake sensor to reset the mechanical operation of the first earthquake sensor and return to the normal operation state.

Further, when an earthquake occurs, when the second earthquake sensor operates together with the first earthquake sensor or subsequently to the first earthquake sensor, if the elevator is running, Stop the elevator on the nearest floor,
Put out of operation. Subsequently, the user opens the door at the nearest floor where the vehicle has stopped and lowers the user. After 15 seconds have elapsed since the door was opened, the door is closed. At this time, if there is still a user in the elevator car and the open button is pressed,
The door is returned to the open state again. On the other hand, if there is no user in the elevator car and the open button is not pressed, the elevator hoistway and machine room by the specialist of the elevator dispatched from the service base If there is no abnormality in the elevator as a result of the inspection, the expert technician presses the manual reset button of the second seismic sensor to restore the state, and then returns to the normal operation state.

[0006]

In the conventional elevator operation apparatus during an earthquake, when an earthquake occurs on the scale in which the second earthquake detector operates, many elevators in a wide area are in an operation stop state. In order to restore the numerous elevators that have been shut down, it is necessary for an elevator technician to inspect each of the idle elevators one at a time and manually return the seismic detectors in the machine room to turn around. was there. These tasks require the mobilization of a large number of elevator technicians, and it takes a very long time to restore all the elevators that have been stopped.

An object of the present invention is to solve the above-mentioned problems,
It is an object of the present invention to provide an elevator automatic return device for an earthquake in which an earthquake detector automatically returns under a certain condition even when a large-scale earthquake occurs, thereby enabling continuous operation of the elevator.

[0008]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a first seismic sensor which operates with a relatively small vibration, and a vibration exceeding a second level which is larger than the first level. And a second earthquake sensor that operates in the first mode. When only the first earthquake sensor operates, the car is temporarily stopped on the nearest floor. Elevator earthquake operation device for automatically restoring the operation of the earthquake sensor to restart the continuous operation of the elevator, and for stopping the operation of the elevator after stopping to the nearest floor when the second earthquake sensor operates In the case, even if the second earthquake sensor operates, after a lapse of a predetermined time, an abnormality detection circuit that determines whether the inching operation is possible, and ± 1000 mm only when the abnormality detection circuit determines that there is no abnormality. A jogging operation command circuit for jogging,
An earthquake operation device provided with an extra-low sensor recovery circuit for automatically returning the operation of the second earthquake sensor when the inching operation is normal, and a continuous operation command circuit for continuing the continuous operation.

That is, when the second seismic sensor that operates with the vibration exceeding the second level that is relatively large operates, the abnormality is detected by the abnormality detecting circuit in the earthquake operation device according to the present invention, and abnormality is recognized. If not, the jogging operation command circuit performs jogging of ± 1000 mm. If there is no problem, the second seismic sensor is automatically reset without manual resetting, and normal continuous operation can be performed immediately. In addition, the inconvenience of the user can be largely eliminated, and the number of elevator specialist technicians mobilized for the elevator recovery work can be reduced.

[0010]

FIG. 1 is a block diagram of an elevator operating apparatus according to an embodiment of the present invention during an earthquake, and FIG. 2 is a flowchart showing an operation procedure of the elevator during an earthquake according to the embodiment shown in FIG. FIG. 3 is a flowchart showing a detailed operation procedure of the continuous operation function in the flowchart of FIG.

In FIG. 1, 1 is an elevator car, 2 is a counterweight, 3 is a rail, 4 is a speed reducer, 5 is an elevator driving motor, and 6 is an elevator operation control circuit. Elevator car 1
And counterweight 2 are suspended at both ends of the rope,
In response to a call from the user, an elevator operation control circuit 6 drives an elevator operation drive motor 5 coupled to the speed reducer 4 to cause the elevator car 1 to travel along the rail 3. The earthquake control operation command circuit 9 is connected to the operation control circuits 6 and 10 to 13.

The operation of this embodiment will be described below with reference to FIGS.

When the elevator is operating normally and an earthquake occurs over a wide area (S1), when both the second earthquake sensor 11 and the first earthquake sensor 12 do not operate (S2, S3). , The normal operation state is continued as it is.

A relatively small earthquake occurs (S1).
The first earthquake sensor 12 operates and the second earthquake sensor 11
Does not operate (S2, S3), if the elevator is running (S12), the elevator car 1 is temporarily stopped at the nearest floor (S13), and the elevator is put into operation stop state (S14). Subsequently, the door of the elevator car 1 is opened at the nearest floor that has stopped (S15), and the user is dropped off from the elevator car 1, and the door is closed 15 seconds later (S16).

At this time, if a user remains in the elevator car 1, and the open button is pressed (S17), the door is opened again. Elevator car 1
After one minute elapses (S18) in a state where no user is present and the open button is not pressed, the automatic return coil 13 of the first earthquake sensor 12 is operated, and the mechanical operation of the first earthquake sensor 12 is stopped. The automatic operation is automatically reset (S19), and the elevator is returned to the normal operation state.

A relatively large earthquake occurs (S1),
When the second earthquake sensor 11 operates together with the first earthquake sensor 12 or following the first earthquake sensor 12 (S
2, S3), if the elevator is running (S4),
The elevator car 1 is temporarily stopped at the nearest floor (S5), and the elevator is put into the operation stop state (S6).
Subsequently, the door of the elevator car 1 is opened at the nearest floor that has stopped (S7), and the user is lowered from the elevator car 1 and closed after 15 seconds (S8).

At this time, if a user remains in the elevator car 1 and the open button is pressed (S9), the door is again opened. When there is no user in the elevator car 1 and the open button is not pressed (S9)
Shifts to the next continuous operation function (S10). In the continuous operation circuit 19, the inspection command circuit 14 is connected to the first earthquake detector 1.
The return circuit 18 outputs a return signal to the return circuit 18, and in response to the return signal, the return circuit 18 supplies a current to the extra-low automatic return coil 13 to generate a first earthquake sensor (earthquake sensor with an extra-low setting) 1
The second mechanical operation is restored (S20).

Here, the reason why the operation of the first earthquake sensor 12 is restored is that if an earthquake occurs again during the automatic continuous operation, the operation of the second earthquake sensor 11 which is already operating is replaced with the earthquake. This is because it is necessary to perform detection and stop the elevator. When a detection command is output from the inspection command circuit 14 to the abnormality detection circuit 15, the abnormality detection circuit 15 uses the abnormality detection optical sensor 7 to bend the rails 3 and the intervals between the rails 3 and the entrance and exit of the elevator (not shown).
The presence or absence of a gap abnormality is detected.

Also, The abnormality detection pressure sensor 8 is used to measure the tension of the main rope and the tail cord to detect the presence or absence of an abnormality. If an abnormality is detected by the abnormality detection optical sensor 7 and the abnormality detection pressure sensor 8, the inspection command circuit 14, the inspection command circuit 1
4 transmits an abnormality signal to the operation control circuit 6, terminates the continuous operation function, stops the elevator, and requires a recovery operation by a specialist engineer (S11).

On the other hand, if no abnormality is detected by the abnormality detecting optical sensor 7 and abnormality detecting pressure sensor 8, a signal is transmitted from the abnormality detecting circuit 15 to the jogging operation command circuit 16. The jogging operation command circuit 16 that has received the signal from the abnormality detection circuit 15 sends a signal to the operation control circuit 6 to perform a low-speed vertical operation (inching operation) within a range of ± 1000 mm, and a low-speed vertical operation within a range of ± 1000 mm. Operation (inching operation) is performed (S23).

If an abnormality is detected during the jogging operation, an abnormal signal is transmitted from the jogging operation command circuit 16 to the inspection command circuit 14, and then the abnormality signal is transmitted from the inspection command circuit 14 to the operation control circuit 6. The transmission is performed, the continuous operation function is terminated, the elevator is stopped, and a recovery operation by a specialist engineer is required (S11).

On the other hand, the inching operation of ± 1000 mm (S2
If no abnormality is found in 3), a signal is transmitted from the jogging operation command circuit 16 to the inspection command circuit 14, and then a signal is transmitted from the inspection command circuit 14 to the low detector return circuit 17, and the second The automatic return coil 10 of the earthquake sensor 11 is operated, and the mechanical operation of the second earthquake sensor 11 is automatically reset (S25). When the first earthquake sensor 12 is automatically returned, Normal operation of the elevator becomes possible.

[0023]

According to the present invention, even if an earthquake occurs in which the second earthquake sensor operates over a wide area, the abnormality is detected by the abnormality detection circuit. If the jogging operation is performed and no abnormalities are found during the jogging operation, normal continuous operation can be performed immediately, so that the inconvenience of the elevator users can be resolved and the elevators that have been restored This has the effect of reducing the required number of specialized technicians.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator operating device according to the present invention during an earthquake.

FIG. 2 is a flowchart showing a procedure of an operation of the elevator when an earthquake occurs in the embodiment shown in FIG.

FIG. 3 is a flowchart showing a detailed operation procedure of a continuous operation function in the flowchart of FIG. 2;

[Explanation of symbols]

1 ... elevator car, 2 ... counterweight,
3 ... rail, 4 ... reduction gear, 5 ... elevator operation drive motor, 6 ... elevator operation control circuit, 7 ... abnormality detection optical sensor, 8 ... abnormality detection pressure sensor, 9 ... earthquake control operation instruction circuit, 10 ... Low detector automatic return coil, 11
... Earthquake detector with the detection level set to a very low level (first earthquake sensor), 12 ... Earthquake detector with the detection level set to a low level (second earthquake sensor), 13 ... Automatic return coil of the low level sensor , 1
4 ... Inspection command circuit, 15 ... Abnormality detection circuit, 16 ... Jogging operation command circuit, 17 ... Reset circuit of earthquake sensor 11 with extra low setting, 18 ... Return circuit of earthquake sensor 12 with low setting, 19 ...
Continuous operation circuit, 20 ... tail cord.

Claims (4)

[Claims] A first seismic sensor operating at a relatively small vibration above a first level and a second seismic sensor operating at a second vibration above a first level and greater than said first level; When only the first seismic sensor is operated, the car is temporarily stopped at the nearest floor, and after a certain period of time, the operation of the first seismic sensor is automatically returned to resume the operation of the elevator, and When the second earthquake sensor is activated, the elevator is stopped at the nearest floor and then stopped to operate the elevator.
When the second seismic sensor operates, an abnormality detection circuit that determines whether or not continuous operation is possible, and the elevator is turned on only when the abnormality detection circuit determines that there is no abnormality.
Elevator earthquakes characterized by incorporating a continuous operation circuit that performs low-speed vertical operation (hereinafter referred to as inching operation) within the range of 1000 mm, confirms that there is no abnormality, and automatically returns the second earthquake sensor. When automatic return device. 2. The elevator automatic reset device according to claim 1, further comprising an abnormality detecting circuit for detecting a rail interval and an entrance / exit gap by an abnormality detecting optical sensor. 3. The elevator automatic recovery device according to claim 1, further comprising an abnormality detection circuit for detecting damage to a main rope and a tail cord of the elevator by an abnormality detection pressure sensor. 4. The elevator according to claim 1, wherein the elevator is moved by ± 10 only when the abnormality detection circuit determines that there is no abnormality.
An elevator automatic reset device in case of an earthquake, comprising a jogging operation command circuit for performing low-speed vertical operation within a range of 00 mm.