JPH0940316A - Earthquake time operating device for elevator - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an elevator earthquake operation device that can selectively suspend elevator operation according to the operating conditions of the car when an earthquake occurs. [Structure] An automatic return means for automatically returning the second seismic sensor 12 that has been operated due to the occurrence of an earthquake exceeding 120 Gal to resume elevator operation, and a third seismic sensor 18 that operates with vibration exceeding 150 Gal , 120G
Elevator operation is restarted only when the car 1 is traveling on the predetermined floor at a speed below the predetermined speed or when the car 1 is stopped on the predetermined floor at the time of an earthquake exceeding al. Elevator operation will be suspended when an earthquake exceeding 150 Gal occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic operation system for an elevator which performs seismic control operation when an earthquake exceeding a predetermined level occurs.

[0002]

2. Description of the Related Art FIG. 5 is an explanatory view showing the structure of a general elevator.

Generally, an elevator is, as shown in FIG.
Car 1 and counterweight 2 and these car 1
And a main rope 3 with a counterweight 2 suspended at both ends
And a hoist 4 around which the main rope 3 is wound, and an operation control circuit 6 that controls the operation of an electric motor 5 that drives the hoist 4. Furthermore, this elevator
Loop rope 7 that rotates according to the vertical movement of the car 1
And a speed governor pulley 8 around which the rope 7 is wound, and a pulse signal which is connected to the speed governor pulley 8 and is interlocked in accordance with the rotation of the speed governor pulley 8 and is proportional to the traveling distance of the car 1. And a rotary encoder 9 for outputting the operation control circuit 6.

Such an elevator and a building on which the elevator is installed are stipulated by the Building Standards Law to have an earthquake-resistant structure. Especially, in the elevators among them, the elevator itself when an earthquake occurs. In order to minimize the damage to the vehicle and its accessories, measures such as strengthening the seismic resistance of elevator components and various related equipment have been implemented. Therefore, in the event of an earthquake with a relatively small seismic intensity of about 4 (that is, equivalent to 26 to 80 Gal), it is confirmed that the probability of an accident that damages elevator components and various related equipment is almost zero. Has been done. Furthermore, even if an earthquake with a relatively large seismic intensity of about 5 (that is, equivalent to 81 to 250 Gal) occurs, if the car 1 is stopped, the elevator components and various related equipment will be damaged. It has been confirmed that the probability of occurrence of is almost zero.

In addition, the above-mentioned elevator is equipped with an earthquake control operation in order to ensure the safety of passengers in the car 1 at the time of an earthquake and to prevent an unexpected accident due to a serious functional deterioration of the elevator. A time driving device is provided. In this earthquake driving system, when the seismic detector detects an earthquake, after stopping the car 1 on the nearest floor, the elevator operation is stopped to prevent damage to each device. There is.

FIG. 6 is a block diagram showing an example of an elevator earthquake operation device of this type, and FIG. 7 is a flowchart showing a processing procedure of the earthquake operation device of FIG.

The earthquake driving system shown in FIG. 6 has a first earthquake detector (so-called extra-low sensor) 11 which operates with a vibration exceeding a relatively small first level, and a first earthquake detector 11 which is larger than the first level. A second seismic sensor (so-called low sensor) 12 that operates with a vibration exceeding a second level, and an seismic sensor signal processing circuit 13 that processes seismic sensing signals output from these seismic sensors 11, 12. A seismic control operation command circuit 14 for outputting a control operation command to the operation control circuit 6 in response to the seismic detection signal input via the seismic sensor signal processing circuit 13; and the first seismic sensor 11 described above. And an extra-low automatic return coil 15 for returning the above operation.

The first seismic detector 11 and the second seismic detector 12 are built in an earthquake detector box installed in an elevator machine room or a pit (not shown). Also, for example, when the elevator is installed in a building with a height of 60 m or less, the first level is 80 Ga.
1 and the second level is set to 120 Gal. Further, the second seismic detector 12 is designed to be manually restored after the operation.

In this conventional earthquake operation system, when it is used in a general elevator having no express zone, the seismic control operation is performed according to the processing procedure shown in FIG. That is, when an earthquake occurs in step S101, the second earthquake detector 1 is executed in step S102.
After determining whether 2 has operated, the determination result is NO.
(That is, the second seismic detector 12 does not work)
In this case, in step S103, it is determined whether the first earthquake detector 11 has operated. For example, the earthquake level is 80G
If it is equal to or less than al, the determination result is NO even in step S103.
(That is, the first seismic detector 11 does not operate)
Therefore, the operation control circuit 6 continues the normal operation as it is.

Further, for example, when an earthquake of a level exceeding 120 Gal occurs, the determination result in step S102 is YES (that is, the second earthquake sensor 12 has operated), and thus the car 1 is traveling in step S104. It is determined whether the result is YES (that is, the car 1
Is running), the car 1 is stopped at the nearest floor (not shown) in step S105, the elevator operation is stopped in step S106, and the door (not shown) is opened in the nearest floor in step S107. Drop passengers in 1. Next, in step S108, for example, after 15 seconds, the door is closed, and if the open button is not pressed in the car 1 in step S109, a professional engineer is dispatched from the service base in charge of maintenance of the elevator in step S110. Check the hoistway, machine room, etc. (not shown), and as a result of this check, if no abnormality is found in the elevator,
In step S111, the expert engineer presses a manual reset button (not shown) to reset the mechanical operation of the second seismic detector 12 and restore normal operation.

If the passenger still remains in the car 1 even after the door is closed in step S108, the open button is pressed in the car 1 in step S109, and the process returns to step S107. The door is opened on the nearest floor to unload passengers in the car 1, and the process proceeds to the next step S108.

Also, for example, it exceeds 80 Gal, and 12
When an earthquake with a level of 0 Gal or less occurs, step S1
Since the determination result in 02 is NO (that is, the second seismic detector 12 does not operate), step S103
Proceed to. Since the determination result in this step S103 is YES (that is, the first seismic detector 11 operates), it is determined in step S112 whether the car 1 is traveling, and the determination result is YES (that is, the car 1 Is running), the car 1 is temporarily stopped at the nearest floor (not shown) at step S113, the elevator operation is stopped at step S114, and the door (not shown) at the nearest floor is opened at step S115 to board the car. Unload passengers in car 1. Next, in step S116, for example, after 15 seconds, the door is closed, and in step S117, when the open button is not pressed in the car 1, when step S118 is performed, for example, when one minute has passed, step S119 is performed as an extra low automatic return coil The excitation of 15 automatically resets the mechanical operation of the first seismic detector 11 to restore normal operation.

If there are still passengers in the car 1 even after the door is closed in step S116, the open button is pressed in the car 1 in step S117, and the process returns to step S115. The door is opened on the nearest floor to unload passengers in the car 1, and the process proceeds to step S116.

[0014]

By the way, in the above-described conventional elevator operation system for an earthquake, for example, 120 G
In order to restore all of these elevators to normal operation when an earthquake of a level exceeding al occurs over a wide area and the second seismic detector 12 of each elevator operates and many elevators become dormant. In addition, it is necessary to mobilize a large number of specialists because the specialists need to check each elevator and reset the second seismic detector 12 by the specialists in the elevator machine room.
In addition, the above-mentioned elevator inspection work and the second earthquake detector 1
When carrying out the reset work of 2 above, the professional engineer has to go up and down the stairs many times because of the round trip to the elevator machine room of the building, which not only causes physical fatigue but also all the elevators that have been stopped. Since it takes a long time, at least half a day, to restore it, there is a problem that the burden on the technician becomes considerably large.

In particular, when the above-mentioned earthquake occurs on a holiday or at night, the elevator must be restored quickly. Therefore, an expert engineer of the elevator must be dispatched in a fully mobilized state, regardless of the holiday or night. However, there is a problem that not only the physical burden described above but also the mental burden increases.

Further, when the elevator is out of operation due to the operation of the second earthquake detector 12, it takes at least about one hour after the arrival of the expert engineer to start the inspection of the elevator and return to normal operation. Therefore, there is also a problem that it is a great inconvenience to the user of the elevator.

Considering the actual operating hours per day of a general elevator, more than half of the elevators were stopped on the floor when a past earthquake occurred. Even if an earthquake with a seismic intensity of about 5 occurs when the elevator is stopped in this way, measures are taken to strengthen the seismic resistance of the elevator components and various related equipment as described above. It is designed so that no abnormalities will occur.
Further, even if an earthquake with an intensity of about 5 or less occurs while the car 1 is traveling at a relatively slow speed of, for example, about 10 m / sec or less, the abnormality associated with the earthquake does not occur. Therefore, for example, when an earthquake with a level exceeding 120 Gal occurs, the second seismic sensor 12 operates, so that it is expected that no abnormality will occur in most of the elevators, but the expert engineer still needs to perform the above-mentioned operation. It is necessary to check all elevators that have been dispatched and stopped as described above.

The present invention has been made in view of the actual situation in the prior art, and its purpose is to
An object of the present invention is to provide an elevator earthquake operation device capable of selectively suspending elevator operation according to operating conditions of a car.

[0019]

In order to achieve the above object, the present invention provides a first seismic sensor which operates with a vibration exceeding a first predetermined level, and a first seismic detector greater than the first level. A second seismic detector operating with a vibration exceeding a level of 2, and when only the first seismic detector operates, the car is temporarily stopped at the nearest floor, and the first car is stopped after a predetermined time elapses. The operation system for an elevator during an earthquake, wherein the operation of the seismic detector is automatically restored to restart the elevator operation, and the car is stopped at the nearest floor when the second seismic detector operates. After the lapse of a predetermined time, only when the car is running on the prescribed floor and at a speed below the prescribed speed when the seismic detector of 1 is operating, or when the car is stopped on the prescribed floor The operation of the second seismic sensor by automatically returning are a configuration having an automatic return means resumes the elevator operation.

[0020]

Since the present invention is configured as described above, when a relatively large second level earthquake occurs and the second earthquake detector operates, the automatic return means operates to keep the car in a predetermined position. Only when the vehicle is traveling on the floor and at a predetermined speed or less, or when the car is stopped on the predetermined floor, the operation of the second seismic detector is automatically returned to restart the elevator operation. On the other hand, if the car is traveling on the prescribed floor at a speed exceeding the prescribed speed, or if the car is stopped or traveling on a floor other than the prescribed floor, continue the operation of the second seismic detector. Stop elevator operation. by this,
When an earthquake occurs, elevator operation can be selectively stopped according to the operating conditions of the car.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an elevator earthquake operation system of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the elevator earthquake operation apparatus of the present invention, FIG. 2 is a flowchart showing a part of the processing procedure of the earthquake operation apparatus of FIG. 1, and FIG. FIG. 4 is a flowchart showing another part of the processing procedure of the earthquake driving device, and FIG. 4 is a flowchart showing the remaining part of the processing procedure of the earthquake driving device of FIG. In FIG. 1, the same components as those shown in FIGS. 5 and 6 described above are designated by the same reference numerals. 2 to 4, the A portion of FIG. 2 and the A portion of FIG. 3 are continuous, and the B portion, the C portion of FIG.
Section D is continuous with section B, section C, and section D in FIG. 4, and section E, F in FIG. 3 is continuous with section E, F in FIG. 4, respectively.

The earthquake operation system of this embodiment shown in FIG.
Similar to the conventional one shown in FIG. 6, the first seismic detector 11, the second seismic detector 12, the seismic detector signal processing circuit 13, the seismic control operation command circuit 14, and the extra-low automatic return coil 15 are provided. Is equipped with.

In addition to the above-mentioned structure, the earthquake operation system of this embodiment includes a specific condition automatic restoration circuit 16 provided between the earthquake detectors 11 and 12 and the earthquake detector signal processing circuit 13. , Connected to this specific condition automatic restoration circuit 16,
A low earthquake automatic return coil 17 that resets the operation of the first earthquake detector 11 according to the output of the automatic return signal, and a third level higher than the second level, for example, 150 Gal, built in an earthquake detector box not shown. And a third seismic detector 18 (so-called high-sensing sensor) that operates with a vibration exceeding 0.10 msec., And the third seismic detector 18 is directly connected to the seismic detector signal processing circuit 13.

The above-mentioned specific condition automatic restoration circuit 16 detects the height position of the car 1 and the traveling speed of the car 1 by the pulse signal generated by the rotary encoder 9,
The condition signal is transferred to the seismic control operation command circuit 14 via the seismic detector signal processing circuit 13. Further, the specific condition automatic return circuit 16 energizes the extra low automatic return coil 15 and the low automatic return coil 17 in accordance with the automatic return signal from the seismic control operation command circuit 14, whereby the first earthquake detector 11 and Each of the second seismic detectors 12 is restored.

The seismic control operation command circuit 14 described above includes the seismic detection signal output from the seismic sensors 11 and 12 through the specific condition automatic restoration circuit 16 and the seismic sensor signal processing circuit 13 and the third seismic sensor. When an integrated seismic detection signal that is integrated with another seismic detection signal output from the seismic sensor signal processing circuit 13 is input from 18, the operation control circuit 6 is operated to operate in the elevator seismic control operation mode. Output a command. In addition, the seismic control operation command circuit 14 uses the first condition detector 1 based on the condition signal.
It is determined whether to automatically reset the first and second seismic detectors 12. As a result of the determination, the car 1 is stopped at a predetermined floor, or the car 1 is at a predetermined speed at a predetermined floor, for example, 1 per second.
When it is determined that the earthquake detection signal is output during traveling at 0 m or less, the specific condition automatic restoration circuit 1 is passed through the earthquake detector signal processing circuit 13 after the elapse of a predetermined time.
Output an automatic return signal to 6. The predetermined floor and the predetermined speed are set according to the conditions of the elevator and the building when the elevator is installed.
In the case of the elevator for the 0th floor, the 1st floor and the 2nd floor are set as the predetermined floors.

In this embodiment, seismic control operation is performed when an earthquake occurs according to the processing procedure shown in FIGS. That is, if an earthquake occurs in step S1 of FIG. 2, it is determined in step S2 whether or not the third earthquake sensor 18 has operated, and then in step S3, it is determined whether or not the second earthquake sensor 12 has operated. Further, it is determined in step S4 of FIG. 3 whether the first earthquake detector 11 has operated. For example, the earthquake level is 80G
When it is equal to or less than al, the determination results in steps S2 to S4 are all NO, so that the operation control circuit 6 continues the normal operation as it is.

Further, for example, when an earthquake with a level exceeding 150 Gal occurs, the determination result in step S2 is Y.
Since it is ES (that is, the third earthquake detector 18 has operated), it is determined in step S21 whether or not the car 1 is running, and if the determination result is YES (that is, the car 1 is running), After stopping the car 1 at the nearest floor (not shown) in step S22, the elevator operation is stopped in step S23, the door (not shown) is opened on the nearest floor in step S24, and the passenger in the car 1 is unloaded. Next, in step S25, for example, after 15 seconds, the door is closed, and in step S26, when the open button is not pressed in the car 1, the elevator operation rest state is continued. At this time,
Although not shown, the remote monitoring device of the elevator notifies the remote monitoring device installed at the service base of the suspension of the elevator via the telephone line, or notifies the service base of the suspension of the elevator to the service base by telephone contact from the customer.
Therefore, in step S27 of FIG. 4, a professional engineer is dispatched from a service base in charge of maintenance of the elevator, and after the arrival of the professional engineer, in step S28, inspection of a hoistway, a machine room, etc., not shown, If no abnormality is found in the elevator as a result of the inspection, in step S29, the professional engineer presses a manual reset button (not shown) to reset the third seismic detector 18 and restore normal operation. It is like this.

In the unlikely event that passengers still remain in the car 1 even after the door is closed in step S25, the open button is pressed in the car 1 in step S26.
Returning to step 24, the door is opened on the nearest floor to unload the passengers in the car 1, and the procedure proceeds to the next step S25.

Further, for example, it exceeds 120 Gal, and 1
If an earthquake with a level of 50 Gal or less occurs, follow the procedure S
Since the determination result in 2 is NO (that is, the third earthquake detector 18 does not operate), the procedure proceeds to step S3 and the second
It is determined that the seismic detector 12 has been operated, and in step S31, it is determined whether the car 1 is traveling. If the determination result is YES (that is, the car 1 is running), step S
As 32, the car 1 is once stopped at the nearest floor (not shown), then the elevator operation is stopped at step S33, the door (not shown) is opened at the nearest floor at step S34, and the passenger in the car 1 is unloaded. Next, in step S35, for example, after 15 seconds, the door is closed, and in step S36, if the open button is not pressed in the car 1, when one minute elapses in step S37, the car is loaded as step S38 in FIG. 1 is stopped on the 1st or 2nd floor, or car 1
Is on the first or second floor and is traveling at 10 m / sec or less, and the determination result is YES (that is, when the car 1 is traveling on the first floor or the second floor at 10 m / sec or less, If the car is stopped on the 1st floor or the 2nd floor), as the procedure S39, the low automatic return coil 17 is excited to the second
Automatically reset the mechanical operation of the seismic detector 12 of
Return to normal operation. On the other hand, the determination result of the above step S38 is NO (that is, when the car 1 is traveling on the first floor or the second floor at a speed exceeding 10 m / s, or when the car is 3
If it is stopped or running on the 10th floor to 10th floor), the suspension state of the elevator operation is continued and the process proceeds to step S27.

In the unlikely event that passengers still remain in the car 1 even after the door is closed in step S35, the open button is pressed in the car 1 in step S36.
Returning to step 34, the door is opened on the nearest floor to unload the passenger in the car 1, and the procedure proceeds to the next step S35.

Further, for example, it exceeds 80 Gal, and 12
If an earthquake with a level below 0 Gal occurs, step S2
It is determined that the third seismic detector 18 does not operate in step S and the procedure S
3, the second seismic detector 12 is determined not to operate, and the process proceeds to step S4 in FIG. Then, the first earthquake detector 1
1 is determined to have operated, and in step S41 it is determined whether or not the car 1 is traveling. If the result of the determination is YES (that is, car 1 is traveling), the car 1 is not shown in step S42. After stopping at the nearest floor, step S4
The elevator operation is stopped as 3, and the door (not shown) is opened on the nearest floor to unload the passengers in the car 1 in step S44. Then, in step S45, for example, after 15 seconds, the door is closed, and in step S46, when the open button is not pressed in the car 1, when step S47 is, for example, 1 minute, step S48 is performed. 1
The excitation of No. 5 automatically resets the mechanical operation of the first seismic detector 11 to restore normal operation.

In the unlikely event that passengers still remain in the car 1 even after the door is closed in step S45, the open button is pressed in the car 1 in step S46.
Returning to 44, the door is opened on the nearest floor to unload passengers in the car 1, and the process proceeds to the next step S45.

In the embodiment thus constructed, the elevator operation can be selectively stopped in accordance with the operating conditions of the car 1 when an earthquake occurs. For example, if the elevator car 1 for the 10th floor is the predetermined floor, the first floor or the second floor is 10 / s.
If the earthquake detectors 11 and 12 operate when an earthquake with a level of 120 Gal or more and 150 Gal or less occurs while the vehicle is running at a speed of m or less or is stopped on the first or second floor, the first earthquake detector Not only 11 but also the second earthquake detector 12 can be automatically restored. Therefore, under the above operating conditions of the car 1 (that is, the car 1 is traveling on the first floor or the second floor at a speed of 10 m or less per second or stopped on the first floor or the second floor), it is expected that no abnormality will occur in most elevators Therefore, the elevator operation can be restarted without any trouble without stopping the elevator operation.

Further, when an earthquake of a level exceeding 150 Gal occurs, damage to the building may occur even if there is no abnormality in the elevator. The elevator operation can be stopped for inspection, and therefore the safety of the elevator can be ensured.

In the present embodiment, the seismic detector signal processing circuit 13, the seismic control operation command circuit 14, and the low automatic return coil 17 cause the car 1 to move to the first floor or the second floor when the second seismic detector 12 operates. Only when the vehicle is traveling on the ground floor at a speed of 10 m or less per second, or when the car is stopped on the first floor or the second floor, the operation of the second seismic detector 12 is automatically returned to restart the elevator operation. Automatic return means is configured.

Further, in this embodiment, the first level is set to 80.
Although the Gal, the second level, and the third level were set to 120 Gal and 150 Gal, respectively, the set values of these levels can be changed as necessary.

Further, in the present embodiment, the case of the elevator for the 10th floor is exemplified, but the present invention is not limited to this, and the predetermined floor is set according to the height of the building, for example, 5 In the case of a floor elevator, all floors (1st to 5th floors) can be set as the predetermined floors.
Further, instead of setting the first and second floors of the building on the tenth floor as the predetermined floors, other floors can be set as the predetermined floors.

[0039]

Since the present invention is configured as described above, the elevator operation can be selectively stopped according to the operating conditions of the car when an earthquake occurs. Therefore, when the operating conditions of the car are dangerous, the safety of the elevator can be secured by stopping the operation. On the other hand, if the operating conditions of the above-mentioned car are safe, it is possible to reduce the inconvenience to elevator users by continuing operation, and reduce the frequency of dispatching specialists who perform elevator inspections to reduce the need for specialized technology. This has the effect of reducing the physical and mental burden on the person.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator operation device for an elevator according to the present invention.

FIG. 2 is a flowchart showing a part of a processing procedure of the earthquake driving apparatus of FIG.

FIG. 3 is a flowchart showing another part of a processing procedure of the earthquake driving apparatus of FIG.

FIG. 4 is a flowchart showing the remaining part of the processing procedure of the earthquake driving apparatus of FIG.

FIG. 5 is an explanatory diagram showing a configuration of a general elevator.

FIG. 6 is a block diagram showing an example of an elevator earthquake operation device.

FIG. 7 is a flowchart showing a processing procedure of the earthquake driving apparatus of FIG.

[Explanation of symbols]

 1 Car 5 Electric motor 6 Operation control circuit 9 Rotary encoder 11 First earthquake detector 12 Second earthquake detector 13 Earthquake detector signal processing circuit 14 Earthquake control operation command circuit 15 Extra low automatic recovery coil 16 Special condition automatic recovery Circuit 17 Low automatic return coil 18 Third earthquake detector

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichiro Kono 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (3)

[Claims] 1. A first seismic sensor operating with a vibration above a predetermined first level, and a second seismic sensor operating with a vibration above a second level greater than said first level. And when the operation of only the first seismic detector is stopped, the car is temporarily stopped at the nearest floor, and after a predetermined time has elapsed, the operation of the first seismic detector is automatically restored to restart elevator operation. In an elevator operation system during an earthquake, wherein the car is stopped at the nearest floor when the second seismic detector operates, the car is on a predetermined floor and at a predetermined time when the second seismic detector operates. Only if the car is traveling at a speed or less or the car is stopped at a predetermined floor, there is provided automatic return means for automatically returning the operation of the second seismic detector to restart the elevator operation. Earthquake during the operation device for an elevator, characterized in that was. 2. A specific condition automatic return circuit for detecting the height position and running speed of a car by automatic return means, and the second seismic sensor according to the height position and running speed of the car. During the operation of, the car is judged whether it is located on a predetermined floor, it is judged whether the car is traveling at a predetermined speed or less, and after the elapse of a predetermined time, it is automatically sent to the specific condition automatic return circuit. A low automatic reset that is connected to the seismic control operation command circuit that outputs a recovery signal and the specific condition automatic recovery circuit, and automatically recovers the operation of the second seismic sensor based on the determination result of the seismic control operation command circuit. The elevator operation apparatus during an earthquake according to claim 1, further comprising a coil. 3. An elevator comprising a third seismic detector operating with a vibration exceeding a third level and higher than a second level, and stopping the car at the nearest floor when the third seismic detector operates. The operation apparatus for an elevator during an earthquake according to claim 1, wherein the operation is stopped.