JP2010163284A - Earthquake-restoration operation device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake-restoration operation device of an elevator which performs earthquake-restoration operation when an earthquake is in a level that the operation of a seismometer does not show the occurrence of damage to an apparatus, and avoids the restoration operation when the earthquake is in a level that the damage to the apparatus is liable to occur. <P>SOLUTION: When it is determined by the operation of the seismometer that a magnitude of the earthquake does not exceed a reference value which is fixed in advance, and an abnormality cannot be detected after performing earthquake diagnosis operation for detecting the abnormality, the elevator is automatically restored. When it is determined by the operation of the seismometer that the magnitude of the earthquake exceeds the reference value which is fixed in advance, the earthquake-restoration operation device of the elevator avoids automatic restoration operation and transmits information indicating the impossibility of the earthquake-restoration operation to a maintenance company. The device is provided with a control cable catching detection device for detecting a control cable suspended on a bottom of a car and caught in the equipment in a shaft. Usually, the catching detection device does not operate due to the travel of the control cable in accordance with the elevation of the car and is pulled and operates when the control cable is caught in the equipment in the shaft in the case of an earthquake. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an earthquake recovery operation device for an elevator equipped with a high sensor and a low sensor seismometer.

In general, elevator control operations during earthquakes are equipped with ultra-low detectors and low-sensor seismometers, and when the ultra-low sensor seismometers are operated, the car stops at the nearest floor and is low within a certain time. If the seismometer of the sensor does not operate, it is automatically restored and the elevator returns to normal operation.
If the seismometer of the low sensor operates within a certain period of time, it will be in a state where the elevator is stopped until it has been confirmed by a maintenance / inspection technician whether there is any damage to the elevator or whether there is any abnormality. .
The number of earthquakes and the number of seismometer operations are both increasing, and 718 times and 24622 seismometer motion data have been recorded over the past three years, with an average of 240 earthquakes and about 8000 per year. The seismometer is operating, and the elevator is being restored.
According to the results of the analysis of the 129 earthquake occurrence data registered in the information system by the inventor from the data for the past three years, Of the 6973 movements, there is only one, and the incidence is extremely low at 0.014%. When this became a large-scale earthquake with a seismic intensity of 5 or more, the number of property accidents occurred was 175 out of 15601 operations, and the occurrence rate was found to be significantly higher at 1.12%.
However, if an earthquake with a seismic intensity of about 4 occurs in a densely populated area, many elevator seismometers will operate, and maintenance and inspection specialists with maintenance contracts will go around for inspection. Become. Therefore, if the seismometer operates in a wide range, it will operate on the scale of several hundreds or several pedestals, and even if hundreds of professional engineers respond to the inspection and restoration of elevators. It takes time, and elevator users in buildings and condominiums will not be able to use the elevator until inspection or restoration is completed.
In general, an elevator maintenance company has a system in which the elevator and the maintenance company are connected by a telephone line, and the status of failure and seismometer operation can be received by the reception system of the maintenance company.

As a conventional technique, during a recovery operation of a medium-scale earthquake, a recovery manual operation is performed, and it is determined whether it is normal or not based on the time required for the manual operation, and the normal operation is performed (for example, patents) Reference 1).
Further, as another conventional technique, there is known a technique that performs an abnormality detection operation of a slow speed traveling when an earthquake detector is operated, and determines the presence or absence of an abnormality by detecting a collision attached to an upper part or a lower part of a car (for example, Patent Document 2). reference).
Furthermore, as another conventional technique, for an elevator that is stopped in the control operation at the time of an earthquake, abnormality detection by the sensor and pressure abnormality detection to the control cable are performed. If there is no problem, it is known that it recovers (for example, see Patent Document 3).

JP 2003-146552 A JP 2002-128408 A JP-A-6-247657

In the case of the conventional patent document 1, the mechanism for detecting earthquake anomalies is insufficient, and in the unlikely event that the counterweight is off, or the control cable is hooked on the hoistway device, the car and the counterbalance There was a risk of collision of weights or disconnection of the control cable.
Moreover, in the thing of patent document 2, when the mechanism of an earthquake abnormality detection is inadequate and a control cable should be caught by a hoistway apparatus by any chance, the disconnection accident of a control cable may generate | occur | produce. Yes, it takes a lot of time to restore the control cable.
Furthermore, the method described in Patent Document 3 is insufficient in the method for detecting an abnormality. Even if the control cable is hooked on the hoistway device, it cannot be detected because there is no change in the pulling pressure during the stop. For example, running and catching after a test operation of 1000 mm leads to disconnection of the control cable. In addition, the weight of the control cable changes depending on the length of lifting, and changes from several meters to the weight of the length of the lifting process, so it must be determined that there is an abnormality beyond that, If the control cable gets caught in the hoistway equipment, the sensor cannot be detected even if the control cable is pulled up with considerable force.

  The present invention has been made to solve the above-described problems, and performs an earthquake recovery operation at an earthquake level where almost no equipment damage occurs during seismometer operation, and an earthquake level at which equipment damage is likely to occur. Alternatively, it is an object of the present invention to provide an elevator restoration operation device for an elevator that avoids restoration operation at an earthquake level where a problem is likely to occur in restoration operation.

  In the elevator recovery operation device according to the present invention, when the seismometer operation does not exceed a predetermined reference value, an elevator abnormality cannot be detected by performing an earthquake diagnosis operation for detecting an elevator abnormality. Automatically restores the elevator, avoids automatic restoration operation at an earthquake level that exceeds a predetermined reference value by the operation of the seismometer, and sends an emergency restoration operation notification message to the elevator maintenance company. In order to enable earthquake recovery operation, a control cable catch detection device is provided for detecting the catch of the control cable suspended from the bottom of the car to the hoistway device, etc. Normally, the detection device does not operate when the control cable moves as the car moves up and down, and is controlled by an earthquake. Buru is intended to operate by being pulled when caught to the hoistway equipment.

  In addition, if the seismometer does not exceed the predetermined reference value in the seismometer operation, the elevator diagnosis is detected to detect the elevator abnormality, and if the elevator abnormality cannot be detected, the elevator is automatically restored. An earthquake recovery operation device for an elevator that avoids automatic recovery operation at an earthquake level exceeding a predetermined reference value and sends an earthquake recovery operation failure notification to an elevator maintenance company, in order to enable earthquake recovery operation. In addition, a counterweight collision detection device is provided on the counterweight side of the cage, and the counterweight collision detection device is normally equipped with a collision detector at a position spaced apart from the counterweight by a predetermined distance. It operates when the counterweight deviates and hits the collision detector.

  According to the present invention, most elevators during seismometer operation are capable of seismic diagnosis operation, and most of the elevators are automatically diagnosed for abnormal conditions, and elevators that do not have problems can be automatically restored.

It is block explanatory drawing which shows schematic structure of abnormality information communication systems, such as an earthquake, in an elevator with the flow of information. BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the whole structure of the restoration | recovery operation apparatus of the elevator at the time of earthquake in Embodiment 1 of this invention and the restoration service at the time of earthquake of an elevator. It is a top view which shows the guide rail attachment condition of the elevator which has a structure for enabling the recovery operation after the earthquake in Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the elevator governor rope support apparatus with the structure for enabling the recovery operation after the earthquake in Embodiment 1 of this invention. It is an expansion perspective view which shows the governor rope guide of FIG. It is a side view which shows the control cable catching detection apparatus of the elevator which has the structure for enabling the recovery operation after the earthquake in Embodiment 1 of this invention. It is an expansion perspective view which shows the cable hook detection arm of FIG. It is a side view which shows the state at the time of abnormality detection of a control cable catch detection apparatus. It is the top view which looked at the collision detection apparatus of the balance weight of the elevator with the structure for enabling the recovery operation after the earthquake in Embodiment 1 of this invention from the hoistway. It is an enlarged plan view which shows the collision detection apparatus of a counterweight. It is an enlarged side view which shows the collision detection apparatus of a counterweight. It is a flowchart which shows the operation | movement flow of the recovery operation apparatus at the time of the earthquake of the elevator in Embodiment 1 of this invention. It is a side view which shows the control cable catching detection apparatus of the elevator which has a structure for enabling the recovery operation after the earthquake in Embodiment 2 of this invention. It is a side view which shows the control cable catching detection apparatus of the elevator with the structure for enabling the recovery operation after the earthquake in Embodiment 3 of this invention. It is a side view which shows the state at the time of abnormality detection of a control cable catch detection apparatus. It is a side view which shows the control cable catching detection apparatus of the elevator which has a structure for enabling the recovery operation after the earthquake in Embodiment 4 of this invention. It is a side view which shows the state at the time of abnormality detection of a control cable catch detection apparatus.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a schematic configuration of an abnormal information communication system such as an earthquake in an elevator together with the flow of information. FIG. 2 is an elevator restoration operation device and an elevator restoration service according to Embodiment 1 of the present invention. FIG. 3 is a system configuration diagram showing the overall configuration of the providing system, FIG. 3 is a plan view showing the guide rail mounting state of an elevator having a structure for enabling recovery operation after an earthquake in Embodiment 1 of the present invention, and FIG. FIG. 5 is a schematic configuration diagram showing an elevator governor rope support device having a structure for enabling recovery operation after an earthquake in Embodiment 1 of the present invention, FIG. 5 is an enlarged perspective view showing the governor rope guide of FIG. 6 is an elevator control cable cable having a structure for enabling recovery operation after an earthquake in Embodiment 1 of the present invention. FIG. 7 is an enlarged perspective view showing the cable catch detection arm of FIG. 6, FIG. 8 is a side view showing a state of the control cable catch detection device when an abnormality is detected, and FIG. 9 is the present invention. The top view which looked at the collision detection apparatus of the balance weight of the elevator with the structure for enabling the recovery operation after an earthquake in Embodiment 1 of the above from the hoistway, FIG. 10 shows the collision detection apparatus of the balance weight Fig. 11 is an enlarged plan view, Fig. 11 is an enlarged side view showing the counterweight collision detection device, and Fig. 12 is a flowchart showing an operation flow of the elevator restoration operation device in the first embodiment of the present invention.

In FIG. 1, when an earthquake occurs and the seismometer of the low sensor operates, the elevator stops at the nearest floor, and the door is closed and cannot be used. Usually, a maintenance / inspection engineer inspects the elevator to check whether there is an abnormality.
In general, a communication device 30 dedicated to a maintenance company is connected to the elevator control circuit 6, and information on seismometer operation such as failure information via a telephone line 31 is also included in the communication system 32 of the reception system 34 of the elevator maintenance company. To the receiving terminal 33. The reception system 34 of the elevator maintenance company has received this signal and the technical knowledge of maintenance / inspection based on the communication that the elevator and the user of the elevator building and the administrator have received the telephone contact. The person 35 is dispatched to the building. The present invention is intended to automate these.

In FIG. 2, an elevator car 1 is connected to a counterweight 3 by a main rope 2, and the main rope 2 is wound around a hoisting machine 4. The car 1 is connected to a control circuit 6 installed in a machine room or the like by a control cable 5 and includes an in-car interphone 7. In addition, the car 1 includes a passive sensor that detects the presence or absence of passengers in the car, a car scale device, an in-car monitoring camera (none of which are shown), and detects that there are no passengers in the car 1. can do.
The seismometer according to the present invention includes an ultra-low sensor 21 having a return coil 20 that operates when a first reference value is exceeded, and a return coil 18 that operates when a second reference value greater than the first reference value is exceeded. And a three-stage seismometer with a high sensor 17 without a return coil that operates when a third reference value greater than the second reference value is exceeded. In a low-scale earthquake with a seismic intensity of 3 or less, the ultra-low sensor 21 operates. When the ultra-low sensor 21 operates, the elevator performs the nearest floor stop operation and operates the return coil 20 after a certain time. Then, the seismic control operation control device 16 performs the operation to return to the normal operation.
Further, in a medium-scale earthquake with a seismic intensity of 4 or less, the low sensor 19 is in an operating range. When the low sensor 19 is operated, the mode is set to the earthquake recovery operation under the condition that the high sensor 17 is not operating. The earthquake operation control device 15 controls the earthquake restoration operation.
The earthquake control operation control device 16 and the earthquake restoration operation control device 15 are executed in the elevator control circuit 6. The elevator car 1 is provided with a cable catch detection arm 45 and a counterweight collision detection switch 8. Further, the intercom 7 in the car is utilized when executing the abnormal sound detection function during an earthquake.
The earthquake restoration operation control device 15 includes an operation state confirmation means 10 at the time of an earthquake, a sensor return circuit 11, a slow speed abnormality detection operation circuit 12, a manual speed abnormality detection operation circuit 13, and a high speed abnormality detection operation circuit 14.

Here, the conditions of the elevator earthquake recovery operation will be described first.
The purpose of the elevator earthquake restoration operation according to the present invention is to automatically restore a level where there is usually almost no damage to the elevator equipment due to the earthquake in the occurrence of an earthquake of medium and low scale.
When the sensitivity of the seismometer is very low, for example, seismic intensity is 3 or less, if the seismometer with low sensitivity does not operate even in the present situation, it will be automatically restored after a certain time.
As mentioned above, the inventor analyzed the data of 129 earthquakes registered in the information system from the data for the past three years. The fact is that there is only one out of thousands, and the rate of occurrence is as low as 0.014%, and if this is a large earthquake with a seismic intensity of 5 or more, the rate of occurrence is 1.12%. The fact that the fact that it is extremely high was obtained as knowledge can be a very important factor in aiming at the efficiency of the earthquake recovery operation of elevators and the early restoration of elevators in areas where buildings are crowded.
Therefore, in the present invention, the level of the seismometer is set to three levels. That is, if the current low-sensing seismometer does not operate, there is almost no problem with the ultra-low detector 21 whose level of the seismometer is automatically restored after a certain time and the automatic restoration operation. Low sensor 19 of seismometer level (for example seismic intensity of 4 or less) and seismometer level higher than that, high sensitivity that is likely to cause abnormalities and likely to cause problems in automatic recovery operation There are three stages of the high detector 17 (for example, seismic intensity 5 or more). For highly sensitive seismic levels, it will be an inspection area where specialists for maintenance and inspection are dispatched.

Next, the configuration of each device for minimizing device damage due to an earthquake will be described.
As a condition for the restoration operation at the time of the earthquake, the elevator car at the time of the earthquake is conditional on being stopped on a specific floor such as the first floor or the lobby floor, for example. Elevator cars normally stand by on a specific floor such as the first floor or lobby floor if no user calls are made, and most of them stop at a specific floor when the frequency of use by the user is low. It is common.
In addition to the above, it is confirmed that there are no passengers in the car 1 as a condition for the restoration operation. In order to perform automatic recovery operation in the event of an earthquake more safely, diagnostic operation is started after confirming that there are no passengers in the car. The means for confirming that there are no passengers in the car is that the passive sensor (heat sensor) provided in the car is not operating and the car scale device that detects the weight of the passenger performs the detecting operation. Suppose you are not doing it. In other passenger detection methods, there are two conditions: there are no passengers by image processing the video of the security camera for elevator monitoring installed in the car, and the weighing device is not detecting. Suppose you have it. When a passenger is detected, a message “Press the door open button to get off the elevator” is sent to prompt the passenger to get off the car. If it can be confirmed by the passive sensor, the car scale device, and the security camera signal that the passenger has got off, the diagnostic operation by the automatic recovery operation is started.
First, the structure of the guide rail for minimizing equipment damage when an earthquake occurs will be described.
FIG. 3 shows a structure for supporting an elevator car guide rail or a counterweight guide rail. A rail bracket 51 is fixed to the hoistway wall 50 with anchor bolts, and the elevator car or counterweight guide rail is used. 53 and 54 are fixed by a rail clip 52.
Here, the fact that the car is stopped on a specific floor such as the first floor or the lobby floor, which is the above condition, is a condition for earthquake recovery operation, so that the car stops on the first floor or the specific floor such as the lobby floor. The number of rail brackets 51 and rail clips 52 attached to the car guide rail 53 in the vicinity of the elevator car 1 is increased as compared with other parts. This reinforces the strength of the car guide rail near the specific floor. Similarly, the number of rail brackets 51 and rail clips 52 to which the counterweight guide rails 54 are fixed in the vicinity of the counterweight 3 stopped near the top floor of the hoistway is increased more than the other portions. This reinforces the strength of the counterweight guide rail 54 near the top floor of the hoistway.
Furthermore, in the vicinity of the elevator car 1 stopped on a specific floor such as the first floor or lobby floor, the car guide rail 53 itself and / or the counterweight 3 stopped near the top floor of the hoistway. The balance weight guide rail 54 itself may be made of a material having a higher bending strength than other guide rails, such as a stainless steel material or a stainless alloy, to increase the strength.

Next, a governor rope support device for minimizing equipment damage due to an earthquake will be described.
As shown in FIGS. 4 and 5, a ring portion through which the governor rope 62 is inserted so that the governor rope 62 attached to the side surface of the elevator car 1 does not cross or catch in the middle of the hoistway. A plurality of governor rope guides 60 comprising 60a and support arms 60b for attaching to the hoistway or the like are attached so as to be substantially equidistant in the vertical direction of the hoistway. In this governor rope guide 60, the method of inserting and supporting the governor rope 62 located on the side close to the side wall of the hoistway is effective in preventing the governor rope from being caught. In the figure, 61 is a governor-carrying wheel provided at the lower part of the hoistway.

Next, the configuration of the control cable catch detection device for minimizing equipment damage due to an earthquake will be described.
It is necessary to detect whether or not the elevator control cable 5 is caught in equipment, protrusions, etc. in the hoistway during the abnormality detection operation during the earthquake recovery operation. For this purpose, a control cable catch detection arm 45 as shown in FIGS. 6 and 7 is provided.
A cable catching detection arm 45 is fixed to the bottom of the elevator car frame 44, and is usually fixed in a vertical direction (car raising / lowering direction) by a tension spring 46. A ring portion 45 a through which the control cable 5 is inserted is provided at the lower end portion of the cable catch detection arm 45.
The control cable 5 is hung on a cable hanger 41 under a car, is bound and fixed by a cable clip 42, and the control cable 5 connected to the control circuit 6 side provided in the machine room or the like is connected to the cable catch detection arm. 45 is inserted through the ring portion 45a, hangs down, and further folded upward to be connected to a control circuit 6 provided in a machine room or the like.
Normally, even if the car 1 moves up and down in the vertical direction, the control cable 5 moves straight as it is, so that the cable catch detection arm 45 is fixed in a vertical state as shown in FIG. The control cable catch detection switch 40 provided at the bottom of the car frame 44 does not operate.
However, if the control cable 5 is caught by a hoistway device or projection 47 due to an earthquake, the cable catch detection arm 45 is tilted by the control cable 5 as shown in FIG. The control cable catching detection switch 40 is operated, and an abnormality of the control cable 5 is detected.

Next, the configuration of a counterweight collision detection switch for minimizing equipment damage due to an earthquake will be described.
Only when the elevator car 1 is stopped on the first floor or a specific floor such as the lobby floor and the counterweight is waiting on the top floor of the hoistway, the recovery operation in the event of an earthquake is started. However, it is necessary to detect whether or not the car 1 collides. For this purpose, a counterweight collision detection device as shown in FIGS. 9, 10, and 11 is provided.
A counterweight collision detection switch 8 is installed in the upper part of the elevator car 1 on the counterweight side. A collision detection bar 70 is attached to the counterweight collision detection switch 8 at a position away from the counterweight 3 at a predetermined interval. The collision detection bar 70 is always urged upward by a spring 71. When the collision detection bar 70 hits the counterweight 3 and falls down as shown by the arrow in FIG. 11, the counterweight collision detection switch 8 operates. ing. Thereby, the deviation of the counterweight 3 is detected abnormally.

Next, the abnormal sound detection device during the recovery operation will be described.
Enables sound pressure detection of the intercom 7 in the elevator car 1 during earthquake recovery operation, and detects abnormal sounds and collision sounds using the interphone 7 in the car, especially during abnormal detection operation during earthquake recovery. If the abnormal sound and collision sound are detected, the recovery operation is stopped.

Next, the operation flow of the elevator earthquake recovery operation will be described with reference to FIG.
In Step S1, it is determined in Step S2 whether the low sensor 19 is operating and the high sensor 17 is not operating in the seismic control operation control device 16. If the condition is not met in step S2, that is, if the high sensor 17 is operating, the restoration operation is stopped, and in step S3, an earthquake restoration operation impossible notification is transmitted to the elevator maintenance company reception system 34 and the operation is terminated (S4). ). As a result, the elevator maintenance company can easily dispatch and dispatch a specialist engineer to the earthquake restoration inspection at an earthquake level where equipment damage is likely to occur and a problem is likely to occur in the restoration operation.
If the condition is satisfied in step S2, the seismometer of the low detector 19 is operating, so the process proceeds to step S5, and the communication device 30 notifies the elevator maintenance company reception system 34 of the earthquake detector operation notification. .
Next, it progresses to step S6 and an earthquake restoration driving | operation is started. First, when the low detector 19 of the earthquake detector is operated, the elevator control circuit 6 obtains data (earthquake restoration operation condition) on whether the operation state of the elevator is stopped on a specific floor such as the first floor or the lobby floor. The operation state confirmation means 10 at the time of earthquake confirms from the memory (step S7). If the car is stopped on a specific floor such as the first floor or the lobby floor in step S8, the return coil 20 is operated by returning the ultra-low sensor 21 in step S9. Next, in step S10, the return coil 18 is operated by the return of the low sensor 19. These return operations are performed by the sensor return circuit 11.
After the seismometers of the ultra-low sensor 21 and the low sensor 19 are restored, the car 1 is operated at a low speed by the slow speed abnormality detection operation circuit 12 at step S11, the slow speed abnormality detection operation is performed, and the up operation to the top floor Furthermore, perform a down operation to the lowest floor and make one round trip. Here, the slow speed operation is, for example, an elevator with a speed of 60 m / min and a speed of about 1/10 or about 5 m / min. By performing this slow speed abnormal operation, it is possible to improve the detection efficiency of various detection sensors and reduce the property damage accident.
Then, in the next step S12, abnormal noise detection during traveling, control cable catch detection, and counterweight collision detection on the counterweight are carried out.
If an abnormality is detected in step S12, the process proceeds to step S3, the earthquake recovery operation is stopped, an earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 34, and the process ends (step S4).
Returning to the first floor in the above step S11, the speed abnormality detection operation is completed, and if no abnormality is detected in step S12, the manual speed abnormality detection operation circuit 13 performs the manual speed abnormality detection operation in step S13. Similarly, up operation to the top floor and further down operation to the bottom floor are performed. The manual speed operation here refers to a speed of about 15 m / min which is set as a speed at the time of maintenance and inspection.
Then, in the next step S14, abnormal sound detection during traveling, control cable catch detection, and counterweight collision detection on the counterweight are carried out.
If an abnormality is detected in step S14, the process proceeds to step S3, the earthquake recovery operation is stopped, an earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 34, and the process ends (step S4).
Furthermore, in the earthquake recovery operation, when the manual speed abnormality detection operation is completed and no abnormality is detected in step S14, the car 1 is subjected to the high speed abnormality detection operation circuit 14 in step S15, and similarly the top Run up to the floor and down to the lowest floor.
Then, in the next step S16, abnormal noise detection during travel, control cable catch detection, and counterweight collision detection on the counterweight are carried out.
If an abnormality is detected in step S16, the process proceeds to step S3, the earthquake recovery operation is stopped, an earthquake recovery operation impossibility notification is transmitted to the elevator maintenance company reception system 34, and the process ends (step S4). In this way, by sequentially reporting the abnormality detection result due to the restoration operation to the elevator maintenance company, it is possible to construct a patrol inspection system that allows an expert engineer to be dispatched for inspection at an early stage for an elevator that cannot be automatically restored.
Further, the property detection accident and the detection efficiency can be improved by performing the abnormality detection operation in three stages of slow speed driving, manual speed driving, and high speed driving.
If no abnormality is detected in step S16, the process proceeds to step S17, where it is determined that no damage has been detected in the elevator, and the elevator is restored to normal operation. Thereafter, in step S18, an earthquake restoration notification is issued to the elevator maintenance company reception system 34 to inform the elevator that the earthquake restoration has been completed.
Thus, the elevator finishes the earthquake recovery operation (step S4).

As described above, according to the first embodiment, conventionally, in the occurrence of a medium-scale earthquake with a seismic intensity of about 4, it is possible to distinguish seismic intensity 4 or seismic intensity 6 even though there is almost no equipment abnormality. Because there is a case where there is an abnormality even with seismic intensity 4, the current seismometers of elevators require operation by maintenance and inspection specialists for seismometer operation exceeding ultra-low sensitivity. Automatic inspection can be performed. As a result, most of the elevators during the operation of the seismometer can be automatically inspected, and most of the elevators are automatically diagnosed for abnormal conditions, and elevators free from problems can be automatically restored.
In addition, according to the first embodiment, elevator users of buildings and condominiums that can be restored and stopped on a specific floor such as the first floor or lobby floor, have completed automatic inspection within a few minutes after the earthquake. Thus, the elevator can be used as usual.
On the other hand, in the case of an elevator maintenance company, when an earthquake occurs, the number of elevators that are stopped due to the operation of the seismometer has been reduced rapidly, and the number of elevators that have truly failed due to the earthquake has decreased dramatically. The service can be performed quickly. Usually, an elevator maintenance company specializing in elevator maintenance maintains elevators installed in many buildings and the like. In the event of an earthquake, since a specific area close to the epicenter is targeted, a plurality of elevator devices are affected by the earthquake, and the elevator maintenance company needs to deal with them.
At this time, the elevator maintenance company aims to perform an efficient restoration operation of the elevator according to the damage situation, but in order to enable a quick restoration operation, the elevator where the problem has occurred is efficiently removed. Need to be discovered.
Therefore, as shown in the present embodiment, the elevator maintenance company causes the elevator maintenance company to malfunction by causing the elevator maintenance company to perform automatic recovery operation after the earthquake diagnosis operation and notifying the elevator maintenance company of that fact. Can be grasped efficiently, and an efficient expert engineer's patrol plan can be developed and inspected when implementing the restoration of the entire elevator in a specific area, giving priority to the elevator that has not been restored.
As a result, the time required for the earthquake recovery of the elevator in the entire area where the earthquake occurred can be shortened, so that the time when the elevator cannot be used is reduced as much as possible. Convenience will also increase.

Embodiment 2. FIG.
FIG. 13 is a side view showing an elevator control cable catch detection apparatus having a structure for enabling a recovery operation after an earthquake in Embodiment 2 of the present invention.
In the second embodiment, the control cable 5 is hung on a cable hanger 41 under a car, is bound and fixed by a cable clip 42, and is connected to a control circuit 6 provided in a machine room or the like. Hangs down after leaving the cable clip 42 and is further folded back and connected to the control circuit 6 provided in the machine room or the like. The upper and lower ends of the cable catch detection arm 45 are rotatably fixed between the bottom of the elevator car frame 44 and the cable clip 42, and are usually fixed in a slightly inclined state as shown in the figure.
Normally, even if the car 1 moves up and down in the vertical direction, the control cable 5 moves straight as it is, so that the cable catch detection arm 45 is fixed in a slightly inclined state as shown in FIG. The control cable catching detection switch 40 provided at the center of the bottom of the car frame 44 does not operate.
However, if the control cable 5 is caught by a hoistway device or protrusion 47 due to an earthquake, the cable catch detection arm 45 is further pulled by the catch of the control cable 5 and further tilted to catch the control cable. The detection switch 40 is operated, and an abnormality of the control cable 5 is detected.
This second embodiment also has the same effect as the first embodiment.

Embodiment 3 FIG.
14 is a side view showing an elevator control cable catch detection device having a structure for enabling a recovery operation after an earthquake in Embodiment 3 of the present invention, and FIG. 15 is an abnormality detection of the control cable catch detection device. It is a side view which shows the state of time.
In the third embodiment, the control cable 5 is bound and fixed by a cable clip 42 under the car, and one upper end portion of the cable clip 42 is rotatably attached to a cable hanger 41 provided under the car. ing. As shown in FIG. 14, the cable clip 42 whose upper end portion is rotatably attached to the cable hanger 41 is normally in a suspended state and serves as a control cable catching detection arm. A support 48 is attached to the cable hanger 41 under the car, and a control cable catching detection switch 40 is attached to the support 48.
Therefore, normally, since the control cable 5 moves straight even if the car 1 moves up and down in the vertical direction, the cable clip 42 is in a suspended state as shown in FIG. The detection switch 40 is not pressed to operate.
However, if the control cable 5 is caught by a hoistway device or protrusion due to an earthquake, the cable clip 42 serving as a control cable catch detection arm is pulled by the control cable 5 as shown in FIG. The control cable catching detection switch 40 is operated by being pulled by the hook and rotating in a direction away from the control cable catching detection switch 40, and an abnormality of the control cable 5 is detected.
This third embodiment also has the same effect as the first and second embodiments.

Embodiment 4 FIG.
FIG. 16 is a side view showing an elevator control cable catch detection device having a structure for enabling post-earthquake recovery operation in Embodiment 4 of the present invention, and FIG. 17 is an abnormality detection of the control cable catch detection device. It is a side view which shows the state of time.
In the fourth embodiment, the control cable 5 is suspended and tied to a cable hanger 41 provided under the car by an upper cable clip 42a. In addition, the lower portion of the binding fixing portion of the control cable 5 by the upper cable clip 42a is fixed by the lower cable clip 42b. The upper cable clip 42a and the lower cable clip 42b are slightly separated from each other, and the control cable 5 located between the upper and lower cable clips can be bent. As shown in FIG. 16, the control cable 5 is normally in a suspended state. A support 48 is attached to the cable hanger 41 under the car, and a control cable catching detection switch 40 is attached to the support 48.
Therefore, normally, the control cable 5 moves straight as it is even when the car 1 moves up and down in the vertical direction. Therefore, the control cable 5 is in a suspended state as shown in FIG. The detection switch 40 is not pressed to operate.
However, if the control cable 5 is caught by a hoistway device or protrusion due to an earthquake, the control cable 5 is pulled by the control cable and acts as a control cable catch detection means. As shown in FIG. 17, the control cable 5 is bent away from the control cable catching detection switch 40, and the control cable catching detection switch 40 is operated, and an abnormality of the control cable 5 is detected. It will be.
This fourth embodiment also has the same effect as the first to third embodiments.

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Main rope 3 Balance weight 4 Hoisting machine 5 Control cable 6 Control circuit 7 Car intercom (for abnormal sound detection)
8 Balance Weight Collision Detection Switch 10 Seismic Operation State Confirmation Means 11 Sensor Return Circuit 12 Slow Speed Abnormality Detection Operation Circuit 13 Manual Speed Abnormality Detection Operation Circuit 14 High Speed Abnormality Detection Operation Circuit 15 Earthquake Recovery Operation Control Device 16 Earthquake Control Operation Control Device 17 High sensor 18, 20 Return coil 19 Low sensor 21 Ultra low sensor 30, 32 Communication device 31 Telephone line 33 Receiving terminal 34 Elevator maintenance company reception system 35 Maintenance engineer 40 Control cable catch detection switch 41 Cable hanger 42 Cable Clip 44 Car frame 45 Control cable catch detection arm 45a Ring portion 46 Pull spring 47 Projection 48 Support body 50 Hoistway wall 51 Rail bracket 52 Rail clip 53 Guide rail for cage 54 Guide rail for counterweight 60 Goverment Rope guide 61 governor-clad wheel 62 the governor rope
70 Collision detection bar 71 Spring

Claims (5)

If the seismic level does not exceed the predetermined reference value in the operation of the seismometer, the elevator diagnosis is automatically detected if the elevator abnormality cannot be detected by detecting the abnormality of the elevator. An earthquake recovery operation device for an elevator that avoids automatic recovery operation at an earthquake level exceeding a specified reference value and transmits an earthquake recovery operation disable notification to an elevator maintenance company,
In order to enable earthquake recovery operation, a control cable hook detection device that detects the control cable suspended from the bottom of the car to a hoistway device or the like is provided, and the control cable hook detection device includes: In normal times, the elevator does not work when the control cable moves as the car moves up and down, but when the control cable is caught by a hoistway device etc. due to an earthquake, it is pulled and operated. .   A control cable catch detection device includes a cable catch detection arm attached to the bottom of a car, a ring portion provided at a lower end of the cable catch detection arm, through which the control cable is inserted, and the cable catch detection arm. The elevator recovery operation device for an earthquake according to claim 1, further comprising a cable hook detection switch that operates when pulled.   3. The elevator restoration operation device for an elevator according to claim 2, wherein the control cable is inserted through the ring portion and hangs down and is folded upward to be connected to the control circuit. If the seismic level does not exceed the predetermined reference value in the operation of the seismometer, the elevator diagnosis is automatically detected if the elevator abnormality cannot be detected by detecting the abnormality of the elevator. An earthquake recovery operation device for an elevator that avoids automatic recovery operation at an earthquake level exceeding a specified reference value and transmits an earthquake recovery operation disable notification to an elevator maintenance company,
In order to enable earthquake recovery operation, a counterweight collision detection device is provided on the counterweight side of the car. An elevator restoration operation device for an elevator characterized in that the part is attached and operates when the counterweight deviates from the earthquake and hits the collision detection part.   The counterweight collision detection device includes a counterweight detection switch attached to an upper portion of a counterweight side of a car, a collision detection bar provided on the counterweight, and the collision detection bar at a predetermined interval from the counterweight at all times. And an urging member for urging to a distant position, and when the counterweight deviates due to an earthquake, the collision detection bar operates the counterweight detection switch when the counterweight hits the counterweight. Item 5. An elevator restoration operation device according to Item 4.

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