WO2013038558A1

WO2013038558A1 - Elevator device

Info

Publication number: WO2013038558A1
Application number: PCT/JP2011/071240
Authority: WO
Inventors: 毛利　一成; 大樹福井
Original assignee: 三菱電機株式会社
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2013-03-21
Also published as: CN103534191A; CN103534191B; JPWO2013038558A1; JP5598608B2

Abstract

In order to prevent the shaking of a long object used in an elevator from being amplified even when a long-period earthquake, a strong wind, or the like shakes a building, this elevator device is provided with a detection unit (10) and a control unit (9). The detection unit (10) detects the vibration of a long object. When the vibration of the long object at level 1 is detected by the detection unit (10) when a car (2) is being stopped, the control unit (9) shifts an elevator to a controlled operation to cause the car (2) to travel to one termination floor.

Description

Elevator equipment

The present invention relates to an elevator apparatus that performs control operation to prevent ropes and cables of an elevator from coming into contact with hoistway equipment and being caught by the hoistway equipment.

In elevators, various ropes and cables (hereinafter referred to as "long objects") such as main ropes and control cables are used. When a building equipped with an elevator vibrates due to an earthquake or strong wind, of course, the elevator also shakes.

The earthquake called the so-called long-period earthquake has a small acceleration on the ground surface of several gals. However, if the period of the shaking due to the long period earthquake is close to the natural period of the building, the building may resonate with the shaking of the long period earthquake, and the shaking may continue for several minutes or more. In addition, since the building sways slowly even when the wind is strong, for example, when the typhoon approaches or passes, the sway of the building may continue as in the case of a long-period earthquake. In particular, in a high lift elevator installed in a high-rise building, since the length of the long object is long, the long object is also affected by slight shaking of the building. Depending on the position of the elevator car, the long object may resonate with the shaking of the building, and the long object may come in contact with the hoistway equipment or may be caught on the hoistway equipment.

The following

patent documents

1 and 2 describe an elevator apparatus provided with a control operation function.

In the elevator apparatus described in Patent Document 1, the emergency earthquake bulletin distributed by the Japan Meteorological Agency is used to move the car to a predetermined zone where the influence of the long period shaking is small before the shaking of the earthquake reaches.
In the elevator apparatus described in Patent Document 2, a vibrometer is installed at the upper part of a building, and the runout amount of a long object is calculated from the detection result of this vibrometer to perform stepwise control operation. For example, when a predetermined deflection occurs, the car is stopped at the destination floor or the nearest floor, and the subsequent operation is stopped.

Japanese Patent Application Publication No. 2007-153520 Japanese Patent Laid-Open No. 2008-230771

In the cases described in

Patent Documents

1 and 2, since the car is stopped at the destination floor or the nearest floor, there is a risk that the long elevator in the stop floor resonates with the shaking of the building. In the elevator described in Patent Document 1, the car is stopped in a predetermined zone where the influence of long-period sway is small, but there is a possibility that long objects may resonate with the sway of the building also in that zone. Since a large number of long objects are used in the elevator, if the car has stopped on a predetermined floor for a long time when vibration due to a long period earthquake or the like occurs, any long object is a building Resonating with the vibration of the shaft, there is a risk that the long object may come in contact with the hoistway equipment or may be caught on the hoistway equipment.

The present invention has been made to solve the above-mentioned problems, and its object is to amplify the shaking of a long object even when the building is shaken by a long-period earthquake, strong wind or the like. It is an object of the present invention to provide an elevator apparatus capable of reliably preventing long objects from coming into contact with or catching on hoistway equipment.

The elevator apparatus according to the present invention includes a detection device that detects a shake of a predetermined long object used in the elevator, and a detection device that shakes the first level long object when the elevator car is stopped. And a control device which, when detected, causes the elevator to shift to control operation and causes the car to travel to one of the terminal floors.

Further, the elevator apparatus according to the present invention includes a detection device for detecting a swing of a predetermined long object used in the elevator, and a first-level long object by the detection device when the elevator car is stopped. The controller is configured to shift the elevator to a controlled operation to run the car to a predetermined first non-resonant floor when swing is detected.

In the case of the elevator apparatus according to the present invention, even if the building is shaken by a long-period earthquake, strong wind or the like, amplification of the shaking of the long object is prevented, and the long object is a hoistway device Can be reliably prevented from coming in contact with or being caught.

It is a figure which shows the whole structure of the elevator apparatus in Embodiment 1 of this invention. It is a top view in the hoistway of the elevator apparatus shown in FIG. It is a block diagram which shows the principal part of the elevator apparatus in Embodiment 1 of this invention. It is a flowchart for demonstrating the operation | movement of the detection apparatus shown in FIG. It is a flowchart for demonstrating the other operation | movement of the detection apparatus shown in FIG. It is a flowchart for demonstrating the operation | movement of the control apparatus shown in FIG. It is a flowchart which shows the other operation | movement of the elevator apparatus in Embodiment 1 of this invention.

In order to explain the invention in more detail, it will be described according to the attached drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the redundant description will be appropriately simplified or omitted.

Embodiment 1
FIG. 1 is a diagram showing an entire configuration of an elevator apparatus according to Embodiment 1 of the present invention. FIG. 2 is a plan view of the inside of the hoistway of the elevator apparatus shown in FIG. FIG. 3 is a block diagram showing the main part of the elevator apparatus in accordance with Embodiment 1 of the present invention.

In FIG. 1 to FIG. 3, 1 is a hoistway of an elevator, 2 is a car of the elevator, 3 is a counterweight of the elevator. The car 2 and the counterweight 3 are suspended by a main rope 4 in a hoisting manner in the hoistway 1. In the elevator apparatus according to the present embodiment, one end of the main rope 4 is connected to the upper portion of the car 2 and the other end of the main rope 4 is connected to the upper portion of the counterweight 3.

Reference numeral 5 is a hoist comprising an elevator drive. The hoisting machine 5 is installed, for example, in a machine room 6 provided above the hoistway 1. A portion of the main rope 4 is wound around a drive sheave of the hoisting machine 5. The car 2 moves up and down in the hoistway 1 in a direction according to the moving direction of the main rope 4 by moving the main rope 4 in the longitudinal direction in conjunction with the rotation of the drive sheave. The balancing weight 3 moves up and down in the hoistway 1 in a direction opposite to that of the car 2.

Reference numeral 7 is an elevator control panel, and 8 is an elevator hall provided on each floor of the building.
The control panel 7 is installed in, for example, the machine room 6 in the same manner as the hoisting machine 5. The control panel 7 is provided with a control device 9 and a detection device 10.

The controller 9 controls the operation of the elevator. For example, normally, the control device 9 performs a normal operation in which the car 2 is made to respond to the registered call sequentially. The control device 9 shifts the elevator from the normal operation to the control operation when the predetermined transition condition is satisfied. The operation at the time of control operation will be described later.

The control device 9 is provided with a car position detection means 11 and an operation control means 12.
The car position detection means 11 detects the current position of the car 2 (hereinafter simply referred to as "car position"). The car position detection means 11 outputs information on the detected car position to the operation control means 12.

The operation control means 12 controls various operations of the elevator based on the car position and the like detected by the car position detection means 11. Control of the devices during normal operation and control operation is performed by the operation control means 12. For example, the operation control means 12 controls the operation (rotation of the drive sheave) of the hoisting machine 5 to make the car 2 travel (lift and lower) or stop the car 2 at the landing 8. In addition, the operation control means 12 transmits a command to the car 2 via a control cable (not shown) to control the opening and closing of the doors (car door and landing door).

The detection device 10 detects swings of a predetermined long object used in an elevator at multiple levels.
The elevator uses various ropes and cables (long objects) such as a main rope 4 and a control cable. In the present embodiment, as an example, a case where the swing of the main rope 4 is detected by the detection device 10 will be described. However, the shake of another long object such as a control cable may be detected by the detection device 10. Further, the shake of a plurality of long objects or the shake of a plurality of long objects may be detected by the detection device 10.

The detection device 10 detects the swing of the main rope 4 based on the input signal from the photoelectric sensor 13 (the operation signal of the photoelectric sensor 13). The detection device 10 is provided with level 1 detection means 14 and level 2 detection means 15.

The level 1 detection means 14 detects that a shake of a predetermined level 1 (first level) has occurred on the main rope 4. The level 2 detection unit 15 detects that a shake of a predetermined level 2 (second level) has occurred on the main rope 4. Level 2 swings are greater than Level 1 swings. The criteria (level 1 and level 2) for detecting the swing are appropriately set based on the length of the main rope 4 and the arrangement of the equipment (high shaft equipment) installed in the hoistway 1.

The photoelectric sensor 13 is installed in (the inside of) the hoistway 1. In the present embodiment, four photoelectric sensors 13 are installed near the middle floor, and operation signals of the respective photoelectric sensors 13 are input to the detection device 10. In the figure, 13-Ax indicates a photoelectric sensor provided to detect the deflection of the main rope 4 generated in the direction of the entrance of the hoistway 1 (left and right as viewed from the passenger facing the entrance of the elevator) . 13-Ay indicates a photoelectric sensor provided to detect the swing of the main rope 4 generated in the depth direction of the hoistway 1 (back and forth as viewed from the passenger facing the entrance of the elevator). The numeral "1" attached after Ax and Ay indicates that the photoelectric sensor is provided to detect a level 1 shake. Similarly, the number "2" appended after Ax and Ay indicates that the photoelectric sensor is provided to detect level 2 deflection.

Each photoelectric sensor 13 includes a light projector 13a and a light receiver 13b. The light projector 13a and the light receiver 13b of each photoelectric sensor 13 are arranged, for example, at the same height. The light projector 13a emits predetermined light (detection light) toward the corresponding light receiver 13b. If the main rope 4 is disposed at the regular position (predetermined design position), the detection light from the light projector 13a passes near the main rope 4 and is incident on the light receiver 13b. The light receiver 13 b outputs a signal indicating whether or not the detection light emitted from the corresponding light projector 13 a is received to the detection device 10.

The light projector 13a of the photoelectric sensor 13-Ax1 horizontally irradiates the detection light from the front side of the hoistway 1 toward the back side (that is, in the depth direction of the hoistway 1). This detection light passes through the side (one side) of the main rope 4 if the main rope 4 is disposed at the design position, and is incident on the light receiver 13b of the photoelectric sensor 13-Ax1. Regarding the photoelectric sensor 13-Ax 1, for example, when the distance between the main rope 4 and the hoistway device installed on one side of the main rope 4 is 100%, the detection light from the light projector 13 a is 50 to 50 It is configured to pass through the% position. The light receiver 13b of the photoelectric sensor 13-Ax1 receives a signal (light reception signal) to that effect when light detection light from the light projector 13a is received, and a signal (non-light reception signal) to that effect when light reception is not received. , Level 1 detection means 14.

The light projector 13 a of the photoelectric sensor 13 -Ax 2 horizontally irradiates detection light from the front side of the hoistway 1 toward the back side. This detection light passes through one side of the main rope 4 if the main rope 4 is disposed at the design position, and is incident on the light receiver 13b of the photoelectric sensor 13-Ax2. With regard to the photoelectric sensor 13-Ax2, the detection light is configured to pass a position farther from the main rope 4 than the detection light emitted from the light projector 13a of the photoelectric sensor 13-Ax1. For example, when the distance between the main rope 4 and the hoistway device installed on one side of the main rope 4 is 100%, the light detected from the light projector 13a of the photoelectric sensor 13-Ax2 is 90% from the main rope 4 Each device is arranged to pass through the position. The light receiver 13 b of the photoelectric sensor 13 -Ax 2 outputs a light reception signal to the level 2 detection unit 15 when the detection light from the light projector 13 a is received, and a non-light reception signal when the light is not received.

The light projector 13a of the photoelectric sensor 13-Ay1 horizontally irradiates detection light from the other side of the hoistway 1 toward one side (that is, in the direction of the mouth of the hoistway 1). This detection light passes the back side of the main rope 4 if the main rope 4 is disposed at the design position, and is incident on the light receiver 13b of the photoelectric sensor 13-Ay1. With regard to the photoelectric sensor 13 -Ay 1, for example, when the distance between the main rope 4 and the hoistway equipment installed on the back side of the main rope 4 is 100%, the detection light from the light projector 13 a is the main rope 4 to 50. It is configured to pass through the% position. The light receiver 13b of the photoelectric sensor 13-Ay1 outputs a light reception signal to the level 1 detection means 14 when the detection light from the light projector 13a is received, and a non-light reception signal when the light is not received.

The light projector 13a of the photoelectric sensor 13-Ay2 horizontally irradiates the detection light from the other side of the hoistway 1 toward one side. This detection light passes the back side of the main rope 4 if the main rope 4 is disposed at the design position, and is incident on the light receiver 13b of the photoelectric sensor 13-Ay2. With regard to the photoelectric sensor 13-Ay2, the detection light is configured to pass a position farther from the main rope 4 than the detection light emitted from the light projector 13a of the photoelectric sensor 13-Ay1. For example, when the distance between the main rope 4 and the hoistway device installed on the back side of the main rope 4 is 100%, the detection light from the light projector 13a of the photoelectric sensor 13-Ay2 is 90% from the main rope 4 Each device is arranged to pass through the position. The light receiver 13 b of the photoelectric sensor 13 -Ay 2 outputs a light reception signal to the level 2 detection unit 15 when the detection light from the light projector 13 a is received, and a non-light reception signal when the light is not received.

In the present embodiment, a specific description will be given of the case of detecting the behavior of the main rope 4 using the photoelectric sensor 13 configured as described above. However, this is merely an example, and a photoelectric sensor having another configuration may be used to detect the behavior of the main rope 4. Moreover, you may detect the behavior of the main rope 4 using sensors other than a photoelectric sensor. However, by using the photoelectric sensor 13 configured as described above, the behavior of the main rope 4 can be directly detected, and a signal suitable for elevator control can be input to the detection device 10.

Hereinafter, the function of the level 1 detection means 14 will be described with reference also to FIG.
FIG. 4 is a flowchart for explaining the operation of the detection device shown in FIG. FIG. 4 shows the operation of the level 1 detection means 14 during normal operation and control operation.

The car position detected by the car position detection means 11 is input to the operation control means 12. Based on the information on the car position acquired from the operation control means 12, the level 1 detection means 14 determines whether or not the elevator car 2 is currently stopped (S101). If the car 2 is stopped (Yes in S101), the level 1 detection unit 14 determines whether the photoelectric sensor 13-Ax1 or 13-Ay1 is operated (S102).

If the main rope 4 is disposed at the regular position, the detection light emitted from the light projector 13a is incident on the light receiver 13b. Therefore, the photoelectric sensors 13-Ax1 and 13-Ay1 do not operate (No in S102). In such a case, the level 1 detection unit 14 returns to the process of S101.

When it is detected in S101 that the car 2 is traveling (No in S101), the level 1 detection unit 14 invalidates the operation of the photoelectric sensors 13-Ax1 and 13-Ay1 (S103). That is, while the car 2 is traveling, the level 1 detection means 14 does not detect the swing of the main rope 4. For this reason, even if the detection light is blocked by the traveling car 2, the level 1 detection means 14 does not malfunction.

When it is detected in S101 that the car 2 is traveling, the level 1 detection means 14 performs processing for invalidating the operation of the photoelectric sensors 13-Ax1 and 13-Ay1 so far (S103). ). For example, when it is detected in S101 that the car 2 is traveling, the level 1 detection means 14 clears the level 1 counter (N1 = 0). When the level 1 detection unit 14 clears the level 1 counter in S103, the process returns to S101. The level 1 counter is a counter set to prevent false detection of level 1 shake.

When a sway occurs in the building due to a long period earthquake, strong wind or the like, sway occurs in the main rope 4. When the amplitude of the main rope 4 becomes large and the detection light emitted from the light projector 13a of the photoelectric sensor 13-Ax1 is blocked, the non-light receiving signal is output from the light receiver 13b of the photoelectric sensor 13-Ax1. The level 1 detection unit 14 detects the operation of the photoelectric sensor 13-Ax1 by receiving the non-light reception signal when the car 2 is stopped (Yes in S102). Further, the level 1 detection means 14 detects the operation of the photoelectric sensor 13-Ay1 by receiving a non-light reception signal from the light receiver 13b of the photoelectric sensor 13-Ay1 when the car 2 is stopped.

When the photoelectric sensor 13-Ax1 or 13-Ay1 operates, the level 1 detection unit 14 increments the value of the level 1 counter (N1 = N1 + 1) (S104).

Next, the level 1 detection unit 14 compares the value of the level 1 counter incremented in S104 with a predetermined reference value (for example, reference value = 4) (S105). The reference value is a value for detecting that a swing of level 1 has occurred on the main rope 4. In the present embodiment, the level 1 is determined based on the number of times that the detection light from each light emitter 13a of the photoelectric sensors 13-Ax1 and 13-Ay1 is interrupted while the car 2 is stopped (corresponding to the value of the level 1 counter). The case where the detection means 14 detects a level 1 shake is shown as an example.

If the value of the level 1 counter is not less than the reference value (for example, N1 ≧ 4) (S105: Yes), the level 1 detection means 14 detects that the main rope 4 has generated a level 1 shake (S106). ). When the level 1 detection means 14 detects the swing of the level 1 of the main rope 4, the level 1 detection means 14 outputs a signal to that effect (level 1 detection signal) to the operation control means 12 of the control device 9.

When the value of the level 1 counter is less than the reference value (for example, N1 = 3) in S105, the level 1 detection unit 14 returns to S101 and repeats the above process.

Next, the function of the level 2 detection means 15 will be described with reference to FIG.
FIG. 5 is a flowchart for explaining another operation of the detection device shown in FIG. FIG. 5 shows the operation of the level 2 detection means 15 during normal operation and control operation.

The level 2 detection unit 15 determines whether the elevator car 2 is currently stopped based on the information on the car position acquired from the operation control unit 12 (S201). If the car 2 is stopped (Yes in S201), the level 2 detection unit 15 determines whether the level 1 detection of the main rope 4 is detected by the level 1 detection unit 14 (S202). If the swing of level 1 is not detected by the level 1 detection unit 14 in S202, the level 2 detection unit 15 returns to the process of S201.

When it is detected in S201 that the car 2 is traveling (No in S201), the level 2 detection unit 15 invalidates the operation of the photoelectric sensors 13-Ax2 and 13-Ay2 (S203). That is, while the car 2 is traveling, the level 2 detection means 15 does not detect the swing of the main rope 4. Therefore, even if the detection light is blocked by the traveling car 2, the level 2 detection means 15 does not malfunction.

If the level 1 shake is detected by the level 1 detection unit 14 in S202, the level 2 detection unit 15 determines whether the photoelectric sensor 13-Ax2 or 13-Ay2 is operated (S204). If the photoelectric sensors 13-Ax2 and 13-Ay2 do not operate in S204, the level 2 detection unit 15 returns to the process of S201.

After the swing of the level 1 is detected by the level 1 detection means 14, the amplitude of the main rope 4 is further increased, and when the main rope 4 blocks the detection light emitted from the light projector 13a of the photoelectric sensor 13-Ax2, photoelectric A non-light reception signal is output from the light receiver 13b of the sensor 13-Ax2. The level 2 detection unit 15 detects the operation of the photoelectric sensor 13-Ax2 by receiving the non-light reception signal when the car 2 is stopped (Yes in S204). Further, the level 2 detection means 15 detects the operation of the photoelectric sensor 13-Ay2 by receiving the non-light reception signal from the light receiver 13b of the photoelectric sensor 13-Ay2 when the car 2 is stopped.

When the photoelectric sensor 13-Ax2 or 13-Ay2 operates (Yes in S204), the level 2 detection unit 15 detects that a level 2 shake has occurred in the main rope 4 (S205). When the level 2 detection unit 15 detects the swing of the level 2 of the main rope 4, the level 2 detection unit 15 outputs a signal to that effect (a level 2 detection signal) to the operation control unit 12 of the control device 9.

Next, the function of the operation control means 12 will be described with reference to FIG.
FIG. 6 is a flow chart for explaining the operation of the control device shown in FIG. FIG. 6 shows the operation of the operation control means 12 from normal operation to control operation, and further from control operation to return to normal operation.

In normal operation, the operation control means 12 controls normal operation in which the car 2 is made to respond to registered calls in sequence. The operation control means 12 determines whether or not the swing of the level 1 of the main rope 4 is detected by the level 1 detection means 14 while performing the normal operation (S301). Even if the main rope 4 is shaken due to a long cycle earthquake or strong wind and the like, a swing of the level 1 counter is not detected if the value of the level 1 counter is less than the reference value. In addition, since the operation of the photoelectric sensor 13 is invalid while the car 2 is traveling, the detection device 10 does not detect the swing of the main rope 4. If the level 1 detection means 14 does not detect the swing of the level 1 of the main rope 4 in S301 (No in S301), the operation control means 12 continues the normal operation (S302).

When normal operation is being performed and the swing of the level 1 of the main rope 4 is detected by the level 1 detection means 14 (Yes in S301), the operation control means 12 prevents the damage due to the long period shaking, so the elevator Shift to control operation.

The level 1 detection means 14 detects a level 1 shake when the car 2 is stopped at (a landing 8 of) any floor. Therefore, when the elevator shifts to the control operation, the car 2 is stopped at (the landing 8 of) any floor. In the following, the floor on which the car 2 is stopped when shifting to the control operation is also referred to as a transition stop floor. Note that the transition stop floor is a floor at which the swing of the level 1 of the main rope 4 is detected (initially) during normal operation.

When the elevator is shifted to control operation, the operation control means 12 first opens and closes the door at the transition stop floor, and dismounts the passengers in the car 2 to the transition stop floor (S303). While the car 2 is stopped, the distance between the portions of the main rope 4 where movement is not restricted (for example, between one end connected to the car 2 and the middle part wound around the drive sheave) Distance does not change. For this reason, if it takes time for the passengers to get off (that is, the car 2 is stopped for a long time at the transition stop floor), the amplitude of the main rope 4 may be increased.

Therefore, when the passenger dismounts at the transition stop floor, the operation control means 12 determines whether or not the level 2 detection of the main rope 4 is detected by the level 2 detection means 15 (S304). When a swing of level 2 is detected by the level 2 detection unit 15 (Yes in S304), the operation control unit 12 stops the operation and stops the car 2 at the transition stop floor as it is (S305). In this case, the return of the elevator to normal operation is a condition that no abnormality is detected by the inspection of the elevator maintenance staff.

If the level 2 detection means 15 does not detect the swing of the level 2 in S304 (No in S304), the operation control means 12 sets the car 2 to one end floor (for example, the end floor far from the current car position). , The top floor etc.) (S306). When the operation control means 12 stops the car 2 at one terminal floor, the operation control means 12 causes the vehicle to stand by while keeping the door closed (S307).

When stopping the car 2 at one end floor of the car 2, the operation control means 12 determines whether or not the swing of the level 1 of the main rope 4 is detected again by the level 1 detection means 14 (S308). In the present embodiment, when the car 2 travels, the number of interruptions of the detection light is reset (N1 = 0). Therefore, the level 1 detection means 14 detects the photoelectric sensor 13-after the car 2 is stopped at one end floor. The counting of the number of operations of Ax1 and 13-Ay1 (number of times of detection light blocking) is started.

If the car 2 is run, the distance between the parts where the movement of the main rope 4 is not constrained can be changed. Therefore, even if the level 1 detection unit 14 detects a swing at level 1 when the car 2 is stopped at a floor (the transition stop floor), the car 2 is moved to one end floor. , It can suppress that the shake of the main rope 4 amplifies. That is, in the elevator apparatus, by running the car 2, it is prevented that the main rope 4 resonates with the sway of the building (the amplitude of the main rope 4 increases).

If the swing of level 1 is not detected by the level 1 detection unit 14 for a predetermined time (for example, 3 minutes) while the car 2 is stopped at one end floor (No in S308), the operation control unit 12 Then, the car 2 is run (S309) until the floor (that is, the transition stop floor) where the level 1 shake is detected first (in S301). When the operation control means 12 causes the car 2 to stop again on the transition stop floor, the operation control means 12 causes the car to stand by while keeping the door closed (S310).

If a swing of level 1 is detected by the level 1 detection unit 14 within a predetermined time (for example, 3 minutes) after the car 2 is stopped at one end floor in S307, the operation control unit 12 detects the level 2 detection It is determined by means 15 whether or not a swing at level 2 is detected (Yes in S308 to S304). When a swing of level 2 is detected by the level 2 detection means 15 while the car 2 is stopped at one end floor (Yes in S304), the operation control means 12 stops the operation and sets the car 2 to one side. The end floor is stopped as it is (S305).

When the swing of the level 1 is redetected by the level 1 detection means 14 after the car 2 stops at one end floor (Yes in S308), the main rope 4 resonates with the sway of the building, etc. There is a possibility that the swing of the main rope 4 may be amplified. Therefore, after the determination in step S308 is YES, if the level 2 detection unit 15 does not detect a swing at level 2 in step S304 (No in step S304), the operation control unit 12 ends the car 2 at the other end. The car 2 is made to travel to the floor (the other end floor if the car 2 is stopped at one end floor) (S306).

While the car 2 is traveling, the distance between the portions where the movement of the main rope 4 is not constrained changes constantly, so the main rope 4 resonates with the sway of the building and the sway of the main rope 4 is not amplified. . The operation control means 12 performs the determination shown in S308 in the same manner as described above, when the car 2 is kept in the door closed standby state at the other terminal floor (S307).

When the car 2 is stopped at the transition stop floor in S310, the operation control means 12 determines whether or not the swing of the level 1 of the main rope 4 is detected again by the level 1 detection means 14 (S311).

If a swing at level 1 is detected by the level 1 detection unit 14 within a predetermined time (for example, three minutes) after the car 2 is stopped again at the transition stop floor (Yes at S311), the operation control unit 12 , S304, and repeat the above process. On the other hand, if the level 1 detection unit 14 does not detect swing at level 1 (No at S311), operation control is performed while the car 2 is stopped again at the transition stop floor, for a predetermined time (for example, 3 minutes) The means 12 determines that the swing of the main rope 4 has been settled. In such a case, the operation control means 12 cancels the control operation and returns the elevator to the normal operation (S312).

If the elevator apparatus has the above configuration, even if the building is shaken by a long-period earthquake, strong wind or the like, the elevator long object is reliably prevented from coming into contact with or catching on the hoistway equipment can do.

That is, in the elevator apparatus, the car 2 is prevented from resonating with a long object due to the shaking of the building. In this elevator system, since the car 2 is run between one end floor and the other end floor, the natural cycle of the long object can be changed greatly, and the amplitude of the long object can be easily increased. Can be prevented.

With this elevator apparatus, even in a building in which the non-resonance floor is not set in advance or a building in which the non-resonance floor does not exist, damage at the time of occurrence of long-period shaking can be minimized. The non-resonant floor is a floor that is preset as a floor that is difficult or not likely to resonate with the sway of the building when the elevator car 2 is at rest.

When the non-resonance floor is set in advance in a building, the operation control means 12 may carry out the operation flow shown in FIG. FIG. 7 is a flow chart showing another operation of the elevator apparatus in accordance with Embodiment 1 of the present invention. The operation flow shown in FIG. 7 corresponds to that in which the terminal floor is changed to the non-resonance floor in the operation flow shown in FIG. When the operation control means 12 performs the process shown in FIG. 7, two or more non-resonant floors (for example, the first non-resonant floor and the second resonant floor which is a floor different from the first non-resonant floor) It is necessary to set).

In FIG. 7, each process shown in S401 to S405 is the same as each process shown in S301 to S305 in FIG.
If the level 2 detection unit 15 does not detect the swing of the level 2 in S404 (No in S404), the operation control unit 12 causes the car 2 to travel to a predetermined non-resonant floor (first non-resonant floor) (S406). ). When stopping the car 2 at the first non-resonance floor, the operation control means 12 causes the vehicle to stand by while keeping the door closed (S407).

When stopping the car 2 at the first non-resonant floor, the operation control means 12 determines whether or not the swing of the level 1 of the main rope 4 is detected again by the level 1 detection means 14 (S408). In the state where the car 2 is stopped at the first non-resonant floor, if the level 1 detection unit 14 does not detect a swing at the level 1 for a predetermined time (for example, 3 minutes) (No at S408), the operation control unit 12 The car 2 is run (S409) to the floor (that is, the transition stop floor) at which the level 1 swing is detected first (at S401). When the operation control means 12 causes the car 2 to stop again at the transition stop floor, the operation control means 12 causes the vehicle to stand by while keeping the door closed (S410).

If a swing of level 1 is detected by the level 1 detection unit 14 within a predetermined time (for example, 3 minutes) after stopping the car 2 at the first non-resonance floor in S407, the operation control unit 12 causes the level 2 to It is determined whether or not a swing at level 2 has been detected by the detection means 15 (Yes in S408 to S404). When a swing of level 2 is detected by the level 2 detection unit 15 while the car 2 is stopped at the first non-resonant floor (Yes in S404), the operation control unit 12 stops the operation and sets the car 2 to the second position. 1 Stop at the non-resonance floor as it is (S405).

When swing of level 1 is redetected by level 1 detection means 14 after car 2 stops at the first non-resonant floor (Yes in S408), then main rope 4 resonates with the sway of the building, etc. May cause the swing of the main rope 4 to be amplified. Therefore, after the determination in step S408 is YES, if the level 2 detection unit 15 does not detect a swing of level 2 in step S404 (No in step S404), the operation control unit 12 determines that the car 2 is not the other. The car 2 is run to the resonant floor (second non-resonant floor) (in the case where three or more non-resonant floors are set, the non-resonant floor other than the first non-resonant floor) (S406). Operation control means 12 performs the determination shown in S408 in the same manner as described above, when the car 2 is put on standby in the second non-resonance floor for door closing (S407).

Each process shown to S411 and S412 is the same as each process shown to S311 and S312 in FIG.

By adopting the above configuration, control operation can be appropriately performed using a non-resonant floor set in advance.

In the present embodiment, the operation of the photoelectric sensor 13 (the detection function of the detection device 10) is performed while the car 2 is traveling, since the elevator is shifted to the controlled operation based on the deflection of the main rope 4 generated while the car 2 is stopped. ) Was disabled. As another method, the operation of the photoelectric sensor 13 is always set to be effective, and it is determined whether the transition to the control operation is performed (whether the detection result by the detection device 10 is used or not) as the operation control means You may go at 12.

In such a case, for example, the operation control means 12 shifts the elevator to the control operation when the detection device 10 detects the swing of the level 1 of the main rope 4 while the car 2 is stopped in the normal operation. On the other hand, when the swing of the level 1 of the main rope 4 is detected by the detection device 10 while the car 2 is traveling, the operation control means 12 continues the normal operation without shifting the elevator to the controlled operation. The determination as to whether or not the car 2 is traveling may be made based on the car position detected by the car position detection means 11.

The elevator apparatus according to the present invention can be applied to an elevator apparatus having a function of detecting the swing of a long object.

DESCRIPTION OF SYMBOLS 1 hoistway 2 cage 3 balance weight 4 main rope 5 winding machine 6 machine room 7 control panel 8 landing 9 control device 10 detection device 11 cage position detection means 12 operation control means 13 photoelectric sensor

13a light projector

13b light receiver 14 level 1 detection Means 15 Level 2 detection means

Claims

A detection device for detecting a swing of a predetermined long object used in an elevator;
A control device that causes the elevator to shift to controlled operation and travels the car to one end floor when the detection device detects swing of the long object at the first level while the elevator car is stopped. When,
Elevator equipment with.
The control device is configured to drive the car to the one end floor in the control operation, and then, when the car is stopped at the one end floor, the controller detects the first level long object by the detection device. The elevator apparatus according to claim 1, wherein the car is caused to travel to the other end floor when a swing is detected.
The control device is configured to drive the car to the one end floor in the control operation, and then, with the car stopped at the one end floor, for a predetermined time, by the detection device, the car is stopped. The elevator apparatus according to claim 1 or 2, wherein the car is allowed to travel to a stop floor which has stopped when shifting to the control operation if swing of the long object is not detected.
The control device is configured to move the car to the stop floor in the control operation, and then, while the car is stopped at the stop floor, the long-distance object of the first level by the detection device for a predetermined time. The elevator apparatus according to claim 3, wherein the control operation is canceled and the elevator is returned to normal operation if a swing of (2) is not detected.
The control device according to any one of claims 1 to 4, wherein, when the elevator is shifted to the control operation, the control unit causes the car to travel to the one end floor after getting off the passengers in the car. Elevator equipment.
A detection device for detecting a swing of a predetermined long object used in an elevator;
When a swing of the first object is detected by the detection device while the elevator car is stopped, the elevator is shifted to controlled operation to drive the car to a predetermined first non-resonant floor A control device to
Elevator equipment with.
The control device is configured to drive the car to the first non-resonant floor in the control operation, and then, when the car is stopped at the first non-resonant floor, the detection device causes the first level to be long. The elevator apparatus according to claim 6, wherein the car is caused to travel to a predetermined second non-resonant floor when a swing of an object is detected.
The control device is configured to drive the car by the detection device for a predetermined time while the car is stopped at the first non-resonant floor after traveling the car to the first non-resonant floor in the control operation. The elevator apparatus according to claim 6 or 7, wherein the car is allowed to travel to a stop floor stopped when shifting to the control operation if swing of the long object at the level is not detected.
The control device is configured to move the car to the stop floor in the control operation, and then, while the car is stopped at the stop floor, the long-distance object of the first level by the detection device for a predetermined time. 9. The elevator apparatus according to claim 8, wherein the control operation is canceled and the elevator is returned to normal operation if a swing of is not detected.
10. The control device according to any one of claims 6 to 9, wherein the control device causes the car to travel to the first non-resonant floor after the passenger in the car is dismounted when the elevator is shifted to the control operation. Elevator equipment.
The detection device detects a shake of the long object at a first level and a second level that is larger than the first level,
11. The control device according to claim 1, wherein, in the control operation, the operation is stopped when the swing of the long object of the second level is detected by the detection device while the car is stopped. The elevator apparatus in any one.
The control device according to any one of claims 1 to 10, wherein the elevator does not shift to the control operation when the detection device detects a swing of the long object at the first level while the car is traveling. The elevator apparatus in any one.
The elevator apparatus according to any one of claims 1 to 10, wherein the detection device does not detect the swing of the long object when the car is traveling.
A photoelectric sensor having a light emitter and a light receiver installed in a hoistway;
Equipped with
The elevator apparatus according to any one of claims 1 to 13, wherein the detection device detects a shake of the long object based on an operation signal of the photoelectric sensor.
The photoelectric sensor is disposed such that the detection light emitted from the light projector passes through the vicinity of the long object and is input to the light receiver.
The elevator apparatus according to claim 14, wherein the detection device detects a first level of shake based on the number of times the detection light from the light projector is blocked.
The elevator apparatus according to claim 15, wherein the detection device clears the count value of the number of disconnections when the car travels.