JPWO2017126062A1 - Elevator apparatus and control method thereof - Google Patents

Abstract

  In the elevator device, the control device (5) includes a car vibration zone (1d), (1e) which is a car moving region in which the vibration of the car (8) becomes excessive due to resonance of the ropes (7), (12). ) Is set. The control device (5) determines whether or not the ropes (7) and (12) have swayed more than the rope swaying setting level. If it is determined that the sway has occurred, the car (8) It is determined whether or not there is a high possibility of entering the vibration zones (1d) and (1e). If it is determined that the vehicle is high, the car is at least one place before the car vibration zones (1d) and (1e). By stopping at the stopping point, the swings of the ropes (7) and (12) are attenuated.

Description

  The present invention relates to an elevator apparatus and a control method therefor, and particularly to suppression of car vibration due to rope swing.

  In general, in high-rise buildings, it is known that low-period shaking continuously occurs due to, for example, long-period vibration caused by an earthquake or strong wind. For example, in an elevator device with a long car up and down stroke, if the main rope swings due to the shaking of the building when the car is stopped on the lowest floor, the amplitude of the main rope when the car starts to travel is small. However, when the car moves to the vicinity of the upper floor and the car side portion of the main rope becomes shorter, the frequency of the main rope matches the frequency of the car, the vibration of the car increases, and the ride comfort deteriorates.

  On the other hand, in the conventional elevator control device, when the rope swing is detected, the car is moved to the non-resonant floor to prevent the rope from contacting and catching on the hoistway device (see, for example, Patent Document 1).

  Moreover, in the elevator system provided with the conventional rope sway detection, a plurality of dampers with which the rope contacts when the rope sway occurs are provided in the hoistway and the machine room. The damper prevents the vibration energy of the rope from being converted into the vibration of the car by absorbing the vibration energy of the rope. When contact with the damper of the rope is detected, the elevator controller moves the car to a designated position in the hoistway, or moves the car to the nearest floor and drops the passenger from the car (for example, , See Patent Document 2).

  Furthermore, in the conventional outdoor elevator, a plurality of rope steadying mechanisms that move up and down along the guide rails are arranged above or below the car (for example, see Patent Document 3).

Japanese Patent No. 4680864 Special table 2013-535385 gazette JP 2004-59208 A

  In the conventional elevator control apparatus shown in Patent Document 1, when rope swing is detected, it is necessary to temporarily stop the service, and the serviceability is deteriorated.

  In the conventional elevator system shown in Patent Document 2, it is necessary to add a device such as a damper, which increases the cost. Further, when the contact of the rope with the damper is detected, it is necessary to temporarily stop the service, which deteriorates the serviceability.

  In the conventional outdoor elevator shown in Patent Document 3, it is necessary to add a rope steadying mechanism, which increases the cost.

  The present invention has been made to solve the above-described problems, and an elevator apparatus capable of preventing deterioration of the riding comfort of a car due to rope vibration while suppressing deterioration in serviceability with a simple configuration. And it aims at obtaining the control method.

An elevator apparatus according to the present invention includes a car that moves up and down a hoistway provided in a building, a rope that is connected to the car, and a control device that controls the operation of the car. The car vibration zone, which is the car movement area where the car vibration is excessive due to resonance, is set, and the control device determines whether or not the rope swings above the rope swing setting level. If it is determined that the car is likely to enter the car vibration zone, and if it is determined that the car is high, stop the car at least at one location before the car vibration zone. By stopping at a point, the swing of the rope is attenuated.
In addition, an elevator apparatus according to the present invention includes a car that moves up and down a hoistway provided in a building, a rope connected to the car, and a control device that controls the operation of the car. The car vibration zone, which is the car movement area where the vibration of the car becomes excessive due to resonance of the swing of the car, is set, and the control device determines whether the rope is shaking more than the rope swing setting level, If it is determined that it has occurred, movement of the car to the car vibration zone is prohibited.
Furthermore, the elevator apparatus according to the present invention has a car and a rope connected to the car, and a plurality of elevator bodies provided in the same bank, and a control device for controlling the operation of the car. The control device has a control effective zone, which is a car movement area where the rope is likely to be shaken by the shaking of the building, and a car vibration zone, which is a car movement area where the vibration of the car becomes excessive due to the vibration of the rope. The control device determines whether or not the swing of the rope swing set level or higher has occurred in at least one of the ropes. If it is determined that the swing has occurred, the control range of the cage is controlled. The control is divided into a first zone including only one of the effective zone and the car vibration zone and a second zone including only the other of the control effective zone and the car vibration zone. To.
The method for controlling an elevator apparatus according to the present invention includes the step of determining whether or not the rope connected to the car is swayed more than a rope swaying setting level, and the swaying exceeding the rope swaying setting level is generated in the rope. A step of determining whether or not the car is likely to enter the car vibration zone, which is a car movement area in which the car vibration is excessive due to resonance of the rope swing. When it is determined that the rope is shaking above the set level and there is a high possibility that the car will enter the car vibration zone, the car is stopped at at least one stop before the car vibration zone. A step of attenuating the swinging of the rope.
Further, in the control method for an elevator apparatus according to the present invention, the step of determining whether or not the rope connected to the car is swayed more than the rope swaying setting level, and the swaying more than the rope swaying setting level is described above. And a step of prohibiting the movement of the car to the car vibration zone, which is a car movement area in which the vibration of the car becomes excessive due to resonance of the rope swing when it is determined that the car is generated on the rope.
Furthermore, the elevator apparatus control method according to the present invention includes a car and a rope connected to the car, and controls a plurality of elevator bodies provided in the same bank and the operation of the car. A control method for an elevator apparatus comprising a control device for determining whether or not a swing greater than a rope swing set level has occurred in at least one of the ropes, and a rope swing set level in any of the ropes If it is determined that the above-mentioned shaking has occurred, the car movement range will be excessive due to the control effective zone, which is the cage movement area where the rope is likely to shake due to the shaking of the building, and the rope shaking. A first zone including only one of the car vibration zones, which is a car movement area, and only the other of the control effective zone and the car vibration zone Comprising the step of limiting and distributing the second zone including.

  The elevator apparatus and the control method thereof according to the present invention can prevent the car from entering the car vibration zone in a state where the rope sway is generated, and the rope can be prevented from being deteriorated in serviceability with a simple configuration. Deterioration of the riding comfort of the car due to vibration can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. It is a graph which shows an example of the measurement result of the cage | basket | car speed and the longitudinal acceleration of a cage | basket | car when driving a cage | basket | car from the lowest floor to the highest floor in the state where the main rope of FIG. 1 has generate | occur | produced. It is a graph which shows the relationship between the primary natural frequency of the cage | basket | car part of the main rope of FIG. 1, and the primary natural frequency of the left-right direction of a cage | basket | car, and a car position. It is explanatory drawing which shows the control effective zone set to the control apparatus of FIG. It is explanatory drawing which shows the 1st car vibration zone set to the braking device of FIG. It is explanatory drawing which shows the 2nd cage vibration zone set to the control apparatus of FIG. It is a block diagram which shows the control apparatus of FIG. It is a flowchart which shows operation | movement of the control apparatus of FIG. It is a flowchart which shows operation | movement of the control apparatus of the elevator apparatus by Embodiment 2 of this invention. It is a block diagram which shows the control apparatus of the elevator apparatus by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the control apparatus of FIG. It is a flowchart which shows operation | movement of the control apparatus of the elevator apparatus by Embodiment 4 of this invention. It is explanatory drawing which shows the control method by the control apparatus of the elevator apparatus by Embodiment 5 of this invention. It is a block diagram which shows the elevator apparatus by Embodiment 6 of this invention. FIG. 10 is an explanatory diagram illustrating a control method by a control device for an elevator apparatus according to a sixth embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the figure, a hoistway 1 is provided in the building. A machine room 2 is provided above the hoistway 1 in the building. In the machine room 2, a hoisting machine 3, a deflector 4, and a control device 5 are installed. The hoisting machine 3 includes a drive sheave 6, a hoisting machine motor (not shown) that rotates the driving sheave 6, and a hoisting machine brake (not shown) that brakes the rotation of the driving sheave 6.

  A plurality of main ropes 7 (only one is shown in the figure) are wound around the drive sheave 6 and the deflecting wheel 4. A car 8 is connected to the first end of the main rope 7. A counterweight 9 is connected to the second end of the main rope 7.

  The car 8 and the counterweight 9 are suspended in the hoistway 1 by the main rope 7 and are moved up and down in the hoistway 1 by rotating the drive sheave 6. The control device 5 moves the car 8 up and down at a set speed by controlling the rotation of the hoisting machine 3.

  In the hoistway 1, a pair of car guide rails 10 that guide the raising and lowering of the car 8 and a pair of counterweight guide rails 11 that guide the raising and lowering of the counterweight 9 are installed. The car 8 is provided with a plurality of roller guide devices (not shown) in contact with the car guide rail 10. Each roller guide device has a plurality of guide rollers that roll along the car guide rail 10 and a plurality of pressing springs that press the guide rollers against the car guide rail 10.

  A plurality of compen- sion ropes 12 (only one is shown in the figure) for compensating the mass of the main rope 7 are suspended between the car 8 and the counterweight 9. The first end of the compen- sion rope 12 is connected to the lower part of the car 8. The second end of the compen- sion rope 12 is connected to the lower part of the counterweight 9.

  In the lower part in the hoistway 1, a pair of compenand rope tensioning wheels 13 a and 13 b for applying tension to the compenand rope 12 are provided.

  FIG. 2 shows an example of measurement results of the car speed and the longitudinal acceleration of the car 8 when the car 8 is run from the lowest floor to the top floor in a state where the main rope 7 of FIG. It is a graph. In this example, a relatively large vibration is generated in the front-rear direction of the car 8 in the deceleration region near the top floor.

  FIG. 3 is a graph showing the relationship between the primary natural frequency of the car side portion of the main rope 7 in FIG. 1 and the primary natural frequency in the left-right direction of the car 8 and the car position. In the approximate expression in the figure, fr is the primary natural frequency of the car side portion of the main rope 7, L is the portion of the main rope 7 between the car 8 and the drive sheave 6, that is, the length of the car side portion, T Is the rope tension per piece, and ρ is the rope line density per piece.

  The primary natural frequency of the main rope 7 changes depending on the car position because the distance from the car 8 to the drive sheave 6 changes depending on the car position. That is, as the car 8 approaches the top floor, the length L decreases, and the primary natural frequency fr of the car side portion of the main rope 7 tends to increase in inverse proportion to the length L.

  On the other hand, the primary natural frequency fc1 in the left-right direction of the car 8 that is guided by the car guide rail 10 through the roller guide device and moves up and down varies depending on the car position and the weight of the car 8 and the support rigidity of the roller guide device. Therefore, the value is constant with respect to the car position. The same applies to the front-rear direction of the car 8, and the primary natural frequency of the car 8 in the front-rear direction is also a constant value with respect to the car position.

  In FIG. 2, a region where a relatively large vibration is generated in the car 8 is such that the primary natural frequency of the car side portion of the main rope 7 in FIG. It is considered that the area is near the position where

  For example, when the car 8 is located at or near the lowermost floor, the main rope 7 is shaken as the building shakes, and if the car travels to the upper floor in that state, the main rope 7 approaches the uppermost floor. Although the amplitude of the rope 7 is reduced, the vibration frequency of the main rope 7 is increased. And it is thought that the horizontal external force according to the tension | tensile_strength of the main rope 7 acts on the cage | basket | car 8, and the vibration of the cage | basket | car 8 becomes large in the position where a rope frequency and a cage | basket | car frequency correspond.

  The control device 5 according to the first embodiment includes a plurality of car movement areas in the hoistway 1 in which the main rope 7 or the compen- sion rope 12 easily shakes due to the shaking of the building when the car 8 is located in the zone. A control effective zone is preset. In this example, as shown in FIG. 4, a main rope resonance zone 1a, a first compensation rope resonance zone 1b, and a second compensation rope resonance zone 1c are set as the control effective zones.

  The main rope resonance zone 1a is an area where the car side portion of the main rope 7 is likely to resonate due to the shaking of the building when the car 8 exists in the zone. The first and second compensation rope resonance zones 1b and 1c are regions in which the cage side portion of the compensation rope 12 is likely to resonate due to the shaking of the building when the cage 8 is present in the zone.

  In this example, the main rope resonance zone 1a is set near the lowest floor. Further, the first compensation rope resonance zone 1b is set near the intermediate floor. Furthermore, the second compensation rope resonance zone 1c is set near the top floor. These resonance zones 1a, 1b, and 1c are different areas in the hoistway 1 and are set at intervals in the vertical direction.

  The range in the vertical direction of each resonance zone 1a, 1b, 1c may be only on the first floor or across multiple floors, and the actual building swing and the swing of the main rope 7 and compen rope 12 It can be set as appropriate according to the relationship.

  Further, in the control device 5, a first car vibration zone 1d shown in FIG. 5 and a second car vibration zone 1e shown in FIG. 6 are preset. The first car vibration zone 1d is a car in the hoistway 1 in which, when the car 8 is located in the zone, the vibration of the car 8 becomes excessive due to resonance of the car side portion of the main rope 7. It is a moving area. In the second car vibration zone 1e, the car 8 in the hoistway 1 in which the vibration of the car 8 becomes excessive due to the vibration of the car side portion of the compensation rope 12 when the car 8 is located in the zone. It is a moving area.

  In this example, the first car vibration zone 1d is set near the top floor. The second car vibration zone 1e is set near the lowest floor.

  If a building shake occurs when the car 8 is located in the main rope resonance zone 1a, the car side portion of the main rope 7 is likely to be shaken. In this state, the car 8 travels upward, and the first When entering the car vibration zone 1d, there is a possibility that a relatively large vibration is generated in the car 8.

  Further, if a building shake occurs when the car 8 is located in the first or second compensation rope resonance zone 1b, 1c, the car side portion of the compensation rope 12 is likely to be shaken. When the vehicle travels downward and enters the second car vibration zone 1e, there is a possibility that a relatively large vibration is generated in the car 8.

  On the other hand, the control device 5 according to the first embodiment determines whether the main rope 7 or the compen- sion rope 12 is swayed more than the rope sway set level. And when it determines with having generate | occur | produced, it is determined whether possibility that the cage | basket | car 8 will approach into the 1st or 2nd cage | basket vibration zone 1d and 1e is high. If it is determined that the car is high, the car 8 is stopped at least at one stop point in front of the first or second car vibration zones 1d and 1e, that is, on the current car position side. The swing of the rope 7 or the compensation rope 12 is attenuated.

  Moreover, the control method of the elevator apparatus of Embodiment 1 has a first determination step, a second determination step, and an attenuation step. In the first determination step, it is determined whether or not the main rope 7 (or the compen- sion rope 12) has swayed more than the rope sway set level. In the first determination step, when it is determined that it has occurred, the second determination step is performed.

  In the second determination step, it is determined whether or not there is a high possibility that the car 8 enters the first car vibration zone 1d (or the second car vibration zone 1e). In the second determination step, if it is determined that the possibility is high, an attenuation step is performed.

  In the damping step, the car 8 is stopped at at least one stop point before the first car vibration zone 1d (or the second car vibration zone 1e), so that the main rope 7 (or the compen- sion rope 12). Damping the shaking.

  Specifically, the control device 5 sets the rope swing when the car 8 stays in the main rope resonance zone 1a for the zone stay upper limit time or more in a state in which the building swing of the building swing set level or higher is detected. It is determined that the swing of the level or more has occurred in the main rope 7. In addition, when it is determined that the main rope 7 is swaying more than the rope swaying setting level, if the call on the first car vibration zone 1d side with respect to the main rope resonance zone 1a occurs, the car 8 becomes the first. It is determined that there is a high possibility of entering the car vibration zone 1d.

  Similarly, the control device 5 keeps the car 8 staying in the first or second compensation rope resonance zone 1b, 1c for more than the zone stay upper limit time in a state where the building shake exceeding the building shake setting level is detected. If it is, it is determined that the swing of the rope swing setting level or more has occurred in the compensation rope 12. In addition, when it is determined that a swing of the rope swing set level or higher has occurred in the compen- sion rope 12, the call on the second car vibration zone 1e side rather than the first or second compensation rope resonance zone 1b, 1c is called. When it occurs, it is determined that there is a high possibility that the car 8 will enter the second car vibration zone 1e.

  As a result, when it is estimated that the main rope 7 or the compen- sion rope 12 is swayed due to the shaking of the building, the sway is sufficiently damped and then the car is moved to the first or second car vibration zone 1d, 1e. 8 can enter.

  The “stay” of “staying longer than the zone stay upper limit time” includes both the time when the car 8 is stopped and the time when the car 8 is traveling. In addition, the zone stay upper limit time is also set in the control device 5 in advance.

  In this example, the stop point is the stop floor before the first or second car vibration zone 1d, 1e. Here, the stop floor as a stop location is referred to as a retreat floor. And the control apparatus 5 stops the cage | basket | car 8 on a evacuation floor by producing | generating the new call from a landing. Further, the control device 5 may stop the car 8 on the evacuation floor by generating a new call from the car 8. Furthermore, the control device 5 may stop the car 8 on the evacuation floor by generating a new call internally without lighting any call button.

  As these evacuation floors, stop floors that can suppress the shaking of various ropes arranged in the hoistway 1, such as the main rope 7, the compen- sion rope 12, and the governor rope (not shown) are selected. It is preferable to do this.

  Moreover, if it is a cage | basket | car position which can suppress the swing of various ropes, it is also possible to set a stop location between floors.

  Further, when a new call is generated, at least one of the announcement and indication that the control operation is performed to prevent the occurrence of excessive car vibration, the car 8 and / or the landing are displayed. It is preferable to carry out.

  FIG. 7 is a block diagram showing the control device 5 of FIG. The control device 5 includes a control operation determination unit 5a, a control operation execution condition determination unit 5b, a stop floor determination unit 5c, an operation control unit 5d, and a call registration unit 5e.

  A signal from the building shake detector 14 that detects the shake of the building is input to the control operation determination unit 5a. As the building shake detector 14, for example, a long-period vibration detector that senses long-period vibration due to an earthquake is used.

  Further, the car position information from the car position detector 15 is input to the control operation determination unit 5a. Examples of the car position detector 15 include a hoisting machine encoder (not shown) provided in the hoisting machine 3 and a speed governor encoder (not shown) provided in a speed governor (not shown). ), And a plurality of car position detection switches (not shown) installed in the hoistway 1 can be used.

  The control operation determination unit 5a is configured such that the car 8 is in the main rope resonance zone 1a, the first compen- sion resonance zone 1b, or the second in a state where the building shake detector 14 detects the shake of the building above the building shake setting level. It is determined whether or not the compen- sion resonance zone 1c stays longer than the upper limit time of the zone stay, and the control operation flag is established when the above condition is satisfied.

  The control operation execution condition determination unit 5b receives car position information, driving direction information, information from the control operation determination unit 5a, and information from the call registration unit 5e. The control operation execution condition determination unit 5b has a condition for performing an UP control operation that is a control operation for attenuating the vibration of the main rope 7 or a DOWN control operation that is a control operation for attenuating the vibration of the compensation rope 12. It is determined whether it is established.

  Information from the control operation execution condition determination unit 5b and information from the call registration unit 5e are input to the stop floor determination unit 5c. The stop floor determination unit 5c determines whether or not it is necessary to generate a new evacuation floor call, and inputs a command for generating a new evacuation floor call to the operation control unit 5d when necessary.

  FIG. 8 is a flowchart showing the operation of the control device 5 of FIG. The control device 5 periodically performs the process shown in FIG. 8 in the normal operation process. In the process of FIG. 8, it is first determined whether or not a building shake exceeding the building shake setting level is detected (step S1). When a building shake exceeding the building shake setting level is detected, it is determined whether the car 8 is located in the main rope resonance zone 1a, the first compensation rope resonance zone 1b, or the second compensation rope resonance zone 1c. (Step S2).

  When a building shake exceeding the building shake setting level is detected, and the car 8 is located in any control effective zone, counting of the zone stay time is started (step S3). Then, it is determined whether the car 8 is still located in any of the control effective zones (step S4), and it is determined whether the zone stay time has reached the zone stay upper limit time (step S5).

  If the car 8 leaves the control effective zone before reaching the zone stay upper limit time, the zone stay time is reset (step S6), and the process returns to step S1. However, since the car 8 may return to the control effective zone immediately after leaving the control effective zone, the car 8 may return to step S1 after the set time.

  On the other hand, when the zone stay time has reached the zone stay upper limit time, it is determined again whether the car 8 is located in the control effective zone and whether the building shake exceeding the building shake set level is detected (step S7). ).

  If the two conditions are satisfied, the control operation flag is established (step S8). In addition, if the building shake exceeding the building shake setting level is not detected at this time, the zone stay time is reset (step S9), and the process returns to step S1. However, even if building shaking is not detected, the rope shaking may continue, so the building shaking detection flag has passed the rope attenuation setting time after the building acceleration falls below the building shaking setting level. It is preferred to reset later.

  When the control operation flag is established, it is determined whether there is a registration of a car call or a landing call outside the control effective zone corresponding to the control operation of the established flag (step S10). If there is no call registration outside the control effective zone, the process returns to step S7. In the second and subsequent steps S7, if the car 8 is out of the control effective zone, or if the building shake exceeding the building shake set level is not detected, the zone stay time is reset and the control operation flag is set. Reset and return to step S1 (step S9).

  In step S10, if there is a call registration outside the control effective zone, it is determined whether the control operation to be performed is a control operation performed when the car 8 is traveling upward, that is, UP control (step S11).

  Here, in FIG. 4, when the car 8 stays in the main rope resonance zone 1a, traveling to the first car vibration zone 1d becomes a problem, so the control operation to be performed is UP control. On the other hand, in FIG. 4, when the car 8 stays in the first or second compensation rope resonance zone 1b, 1c, traveling to the second car vibration zone 1e becomes a problem. , Control operation performed when the car 8 travels downward, that is, DOWN control.

  If the control operation to be performed is UP control, it is determined whether the UP control condition is satisfied (step S12). Here, as the UP control condition, it is determined whether or not the car 8 is a call to exit the control effective zone upward. If the car 8 is a call to exit the control effective zone downward, the process proceeds to step S9. However, since the car 8 may return to the control effective zone immediately after passing through the control effective zone in the downward direction, the process may proceed to step S9 after the set time.

  Moreover, when the control operation to implement is DOWN control, it is determined whether the DOWN control conditions are satisfied (step S13). Here, as the DOWN control condition, it is determined whether or not the car 8 is a call to exit the control effective zone downward. If the car 8 is a call to exit the control effective zone upward, the process proceeds to step S9. However, since the car 8 may return to the control effective zone immediately after passing upward from the control effective zone, the process may proceed to step S9 after the set time.

  When the UP control condition is established, one or more UP evacuation floor calls are registered as stop points (step S14). When the DOWN control condition is satisfied, one or more DOWN evacuation floor calls are registered as a stop point (step S15).

  After registering the call of the UP evacuation floor or the DOWN evacuation floor, the zone stay time is reset, the control operation flag is reset (step S16), and the process of this time is ended.

  The control device 5 is configured by a computer, for example. That is, the function of the control device 5 can be executed by computer processing.

  In such an elevator apparatus, it is possible to prevent the car 8 from entering the car vibration zones 1d and 1e in a state in which the rope sways, and the rope can be prevented from being deteriorated in serviceability with a simple configuration. Deterioration of the riding comfort of the car 8 due to vibration can be prevented. In other words, it is not necessary to add a rope steadying mechanism, etc., and the service to the user is continued just by generating a dummy call to the evacuation floor, so that the serviceability is prevented from being lowered and the car 8 is prevented from resonating. it can.

  Further, since the rope swing is estimated based on the signal from the building shake detector 14 existing in many buildings and the car position information, it is not necessary to add a rope shake detector, and the cost can be reduced.

  Furthermore, when it is determined that the main rope 7 or the compensating rope 12 is swaying more than the rope swaying setting level, a call is made on the first or second car vibration zone 1d, 1e side from the control effective zone. Then, since it is determined that there is a possibility that excessive vibration is generated in the car 8, the car 8 is in the first or second state in a state in which the main rope 7 or the compen- sion rope 12 is swaying more than the rope swing setting level. It is possible to more reliably prevent the car from entering the car vibration zones 1d and 1e.

Furthermore, since the stop point is the stop floor, the car 8 can be easily stopped at the stop point only by generating a call, and the user is not disturbed.
In addition, when the car 8 is stopped at the stop point by generating a new call from the landing, it is possible to further reduce anxiety given to the users in the car 8.
Further, when the car 8 is stopped at the stop point by generating a new call from the car 8, it is possible to further reduce anxiety given to the user at the landing.

  In addition, when the control device 5 determines that the car 8 needs to be stopped at the stop point, whether or not the destination floor call before the first or second car vibration zone 1d, 1e is generated. If it occurs, the destination floor before the first or second car vibration zone 1d, 1e may be used as a part or all of the stop points.

  In this case, whether or not it is possible to consume time sufficient to sufficiently attenuate the vibration of the main rope 7 or the compensation rope 12 by stopping at the destination floor before the first or second car vibration zone 1d, 1e. judge. And when it determines with being able to consume, the destination floor in front is used as all the stop locations. Further, when it is determined that the car cannot be sufficiently attenuated, the car 8 is stopped at one or two or more retreat floors while using the previous destination floor as a part of the stop.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. The configuration of the elevator apparatus of the second embodiment is the same as that of the first embodiment. However, when the control device 5 according to the second embodiment determines that the main rope 7 is swaying more than the rope swaying setting level, it is within the first car vibration zone 1d or the first car vibration zone 1d. When the call of the control effective destination floor, which is the destination floor in the area that has passed, is generated, it is determined that there is a high possibility that the car 8 will enter the first car vibration zone 1d.

  Similarly, when the control device 5 determines that a swing of the rope swing set level or higher has occurred in the compen- sion rope 12, the region within the second car vibration zone 1e or the second car vibration zone 1e. When the call of the control effective destination floor which is the destination floor is generated, it is determined that the possibility that the car 8 enters the second car vibration zone 1e is high.

  In addition, when the control device 5 determines that the car 8 needs to be stopped at the stop point, a call for a destination floor before the corresponding first or second car vibration zone 1d, 1e is generated. Determine whether or not. And when the call of the front destination floor has generate | occur | produced, the front destination floor is utilized as a part or all of a stop location.

  FIG. 9 is a flowchart showing the operation of the control device 5 according to the second embodiment. After establishing the control operation flag (step S8), the control device 5 determines whether or not there is a call registration to the control effective destination floor (step S21).

  In addition, as a control condition, whether or not a destination floor call before the first or second car vibration zone 1d, 1e is generated, and if so, the first or second car vibration zone 1d, It is determined whether the vibration of the main rope 7 or the compensation rope 12 can be sufficiently damped by stopping at the destination floor before 1e.

  Then, by stopping at the destination floor before the first or second car vibration zone 1d, 1e, it is determined whether it is possible to consume time sufficient to sufficiently attenuate the vibration of the main rope 7 or the compen- sion rope 12. To do. And when it determines with being able to consume, the destination floor in front is used as all the stop locations. If it is determined that it cannot be sufficiently attenuated, the previous destination floor is used as a part of the stop point (steps S22 and S23). Other operations are the same as those in the first embodiment.

  In such an elevator apparatus, in addition to the same effects as those of the first embodiment, the addition of stop points can be minimized and the deterioration in serviceability can be more efficiently suppressed.

  In the second embodiment, if a call to the control effective destination floor is generated after the control operation flag is established, it depends on the presence or absence of the call registration of the destination floor before the first or second car vibration zone 1d, 1e. Instead, a call to a preset evacuation floor may be automatically registered.

Embodiment 3 FIG.
Next, FIG. 10 is a block diagram showing a control device 5 for an elevator apparatus according to Embodiment 3 of the present invention. In the third embodiment, detection signals from a plurality of rope swing detectors 16 (only one is shown in the figure) that detect the swing of the main rope 7 and the compen- sion rope 12 are input to the control operation determination unit 5a.

  As the rope shake detector 16, for example, a photoelectric sensor having a light emitting unit and a light receiving unit that detects infrared rays emitted from the light emitting unit is used. The control operation determination unit 5a determines that the main rope 7 or the compensation rope 12 is swayed more than the rope swing setting level when the infrared ray is blocked by the main rope 7 or the compensation rope 12.

  That is, in the third embodiment, since the swing of the main rope 7 and the compensation rope 12 is directly detected, it is not necessary to count the staying time of the car 8 in the control effective zone.

  When the control device 5 determines that the main rope 7 is swayed more than the rope swaying setting level, if the call on the first car vibration zone 1d side from the main rope resonance zone 1a occurs, the car 8 Is likely to enter the first car vibration zone 1d.

  Further, when the control device 5 determines that the swing of the rope swing set level or more has occurred in the compen- sion rope 12, the second cage vibration zone is more than the first or second compensation rope resonance zone 1b, 1c. When a call on the 1e side occurs, it is determined that there is a high possibility that the car 8 will enter the second car vibration zone 1e.

  FIG. 11 is a flowchart showing the operation of the control device 5 of FIG. The control device 5 periodically performs the process shown in FIG. 11 in the normal operation process. In the process of FIG. 11, first, it is determined whether or not the main rope 7 or the compen- sion rope 12 is swaying more than the rope swaying setting level (step S31). Then, when a swing greater than the rope swing set level is detected, a control operation flag is established (step S32).

  When the control operation flag is established, it is determined whether there is a registration of a car call or a landing call outside the control effective zone corresponding to the rope in which the swing of the rope swing set level or more is detected (step S33). If there is no call registration outside the control effective zone, it is determined whether or not the rope shake continues (step S34), and if it continues, the process returns to step S33. If the rope swing does not continue, the control operation flag is reset (step S35), and the process returns to step S31.

  If there is a call registration outside the control effective zone in step S33, as in the first embodiment, it is determined whether the control operation to be performed is UP control (step S11), and the UP control condition or the DOWN control condition is determined. Is determined (step S12 or step S13). The evacuation floor registration (step S14 or step S15) when the control condition is satisfied is the same as in the first embodiment.

  If the control condition is not satisfied, the control operation flag is reset (step S35), and the process returns to step S31. In addition, when the call of the UP evacuation floor or the DOWN evacuation floor is registered, the control operation flag is reset (step S36), and the process of this time is ended. Other configurations and operations are the same as those in the first embodiment.

  In such an elevator apparatus, it is possible to prevent the car 8 from entering the car vibration zones 1d and 1e in a state in which the rope sways, and the rope can be prevented from being deteriorated in serviceability with a simple configuration. Deterioration of the riding comfort of the car 8 due to vibration can be prevented.

  Further, since the rope sway is determined based on the detection signal from the rope sway detector 16, it is possible to more reliably determine whether or not the sway exceeding the rope sway set level has occurred. Deterioration of ride comfort can be prevented more reliably.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. The configuration of the elevator apparatus of the fourth embodiment is the same as that of the third embodiment. However, when the control device 5 according to the fourth embodiment determines that the main rope 7 is swayed more than the rope sway set level, the control device 5 in the first car vibration zone 1d or the first car vibration zone 1d. When the call of the control effective destination floor, which is the destination floor in the area that has passed, is generated, it is determined that there is a high possibility that the car 8 will enter the first car vibration zone 1d.

  Similarly, when the control device 5 determines that a swing of the rope swing set level or higher has occurred in the compen- sion rope 12, the region within the second car vibration zone 1e or the second car vibration zone 1e. When the call of the control effective destination floor which is the destination floor is generated, it is determined that there is a high possibility that the car 8 enters the second car vibration zone 1e.

  In addition, when the control device 5 determines that the car 8 needs to be stopped at the stop point, a call for a destination floor before the corresponding first or second car vibration zone 1d, 1e is generated. Determine whether or not. And when the call of the front destination floor has generate | occur | produced, the front destination floor is utilized as a part or all of a stop location.

  FIG. 12 is a flowchart showing the operation of the control device 5 according to the fourth embodiment. After the control operation flag is established (step S32), the control device 5 determines whether there is a call registration to the control effective destination floor (step S41).

  In addition, as a control condition, whether or not a destination floor call before the first or second car vibration zone 1d, 1e is generated, and if so, the first or second car vibration zone 1d, It is determined whether the vibration of the main rope 7 or the compensation rope 12 can be sufficiently damped by stopping at the destination floor before 1e.

  Then, by stopping at the destination floor before the first or second car vibration zone 1d, 1e, it is determined whether it is possible to consume time sufficient to sufficiently attenuate the vibration of the main rope 7 or the compen- sion rope 12. To do. And when it determines with being able to consume, the destination floor in front is used as all the stop locations. If it is determined that it cannot be sufficiently attenuated, the previous destination floor is used as a part of the stop point (steps S22 and S23). Other operations are the same as those in the third embodiment.

  In such an elevator apparatus, in addition to the same effects as those of the third embodiment, it is possible to minimize the addition of stop points and to more effectively suppress the deterioration of serviceability.

In the fourth embodiment, when a call to the control effective destination floor is generated after the control operation flag is established, it is determined whether or not a call is registered on the destination floor before the first or second car vibration zone 1d, 1e. Instead, a call to a preset evacuation floor may be automatically registered.
The rope shake detector 16 of the third and fourth embodiments is not limited to a photoelectric sensor, and may be, for example, a type of rope shake detector that detects rope shake from an image taken by a camera. .

Embodiment 5. FIG.
Next, a fifth embodiment of the present invention will be described. FIG. 13 is an explanatory diagram showing a control method by the control device 5 of the elevator apparatus according to the fifth embodiment. The primary natural frequency of the car side portion of the main rope 7 of FIG. The control method is superimposed on a graph showing the relationship between the secondary natural frequency and the primary natural frequency in the left-right direction of the car 8 and the car position. The car position S <b> 1 is a position where the primary natural frequency in the left-right direction of the car 8 matches the primary natural frequency of the car side portion of the main rope 7. The car position S <b> 2 is a position where the primary natural frequency in the left-right direction of the car 8 coincides with the primary natural frequency of the car side portion of the compen rope 12.

  The configuration of the elevator apparatus of the fifth embodiment is the same as that of the first, second, third, or fourth embodiment. In the control device 5 of the fifth embodiment, in the method of the first and second embodiments, or the method of the third and fourth embodiments, the main rope 7 or the compen- sion rope 12 is swayed more than the rope swing setting level. If it is determined, the movement of the car 8 to the first and second car vibration zones 1d and 1e is prohibited.

  The control method for the elevator apparatus according to the fifth embodiment includes a determination step for determining whether or not the main rope 7 or the compen- sion rope 12 is swayed more than the rope sway set level, and the sway higher than the rope sway set level. And a prohibiting step for prohibiting the movement of the car 8 to the first and second car vibration zones 1d and 1e when it is determined that the main rope 7 or the compensating rope 12 is generated.

  At this time, when the main rope 7 and the compen- sion rope 12 are distinguished from each other and determined, and it is determined that the main rope 7 is swaying more than the rope swing setting level, the movement to the first car vibration zone 1d is performed. If the movement of the car 8 is prohibited and it is determined that the swing of the rope swing set level or higher has occurred in the compen- sion rope 12, the movement of the car 8 to the second car vibration zone 1e may be prohibited.

  Thereafter, when the rope swing is indirectly detected by the method of the first and second embodiments, the control device 5 determines whether the main rope 7 or the compen- sion rope 12 is in a state where the building swing is smaller than a preset level. It is determined that the vibration is sufficiently damped, and the movement of the car 8 to the first and second car vibration zones 1d and 1e is permitted.

  Further, when the rope swing is directly detected by the method of the third and fourth embodiments, the control device 5 can detect the main rope 7 or the compensator 12 when the swing of the main rope 7 or the compen rope 12 becomes smaller than a preset level. It is determined that the swing of the compensation rope 12 has sufficiently attenuated, and the movement of the car 8 to the first and second car vibration zones 1d and 1e is permitted.

  Further, in the case where the swing of the main rope 7 and the swing of the compen- sion rope 12 are discriminated and determined, the control device 5 causes the car to be located at the position of the car when the main rope 7 or the compen- sion rope 12 is swayed more than the rope swing setting level. 8 and when the swing of the main rope 7 or the compensation rope 12 at the car position becomes smaller than a preset level, it is determined that the swing of the main rope 7 or the compensation rope 12 has sufficiently attenuated, The movement of the car 8 to the first or second car vibration zone 1d, 1e is permitted.

  In such an elevator apparatus, it is possible to prevent the car 8 from entering the car vibration zones 1d and 1e in a state in which the rope sways, and the rope can be prevented from being deteriorated in serviceability with a simple configuration. Deterioration of the riding comfort of the car 8 due to vibration can be prevented.

Embodiment 6 FIG.
Next, FIG. 14 is a block diagram showing an elevator apparatus according to Embodiment 6 of the present invention. In the elevator apparatus of the sixth embodiment, a plurality of (two in FIG. 14) elevator bodies having the same configuration are provided in the same bank. Further, in FIG. 14, a sign of “−1” is added to the equipment of the first machine, and a sign of “−2” is attached to the equipment of the second machine. The control device 5 includes two units of the configuration shown in FIG. 7 or 10 and a group management control unit that controls the first and second machines as a group.

  FIG. 15 is an explanatory diagram showing a control method by the control device 5 of the elevator apparatus according to the sixth embodiment. As in the first embodiment, the control device 5 includes the main rope resonance zone 1a, the first compensation rope resonance zone 1b, the second compensation rope resonance zone 1c, the first car vibration zone 1d, and the second A car vibration zone 1e is set.

  The control device 5 determines whether or not the swing of the rope swing set level or higher has occurred in at least one of the main ropes 7-1 and 7-2. 1, 8-2, the first zone Z1 including only one of the main rope resonance zone 1a and the first car vibration zone 1d, and the main rope resonance zone 1a and the first car vibration zone 1d. And restricting to the second zone Z2 including only the other one of the elevator bodies.

  Similarly, the control device 5 determines whether or not the swing of the rope swing set level or more has occurred in at least one of the compen ropes 12-1 and 12-2. The movement ranges of the cars 8-1 and 8-2 are set such that the first zone Z1 including only one of the compensation rope resonance zones 1b and 1c and the second cage vibration zone 1e, the compensation rope resonance zones 1b and 1c, and Each elevator body is limited to the second zone Z2 including only the other of the second car vibration zones 1e.

  The determination method of the rope swing is the same as that in any one of the first to fourth embodiments for the control device 5. In the example of FIG. 15, the uppermost floor of the first zone Z1 and the lowermost floor of the second zone Z2 are vertically adjacent to each other, but even if they overlap one floor or two or more floors. Good. Furthermore, there may be a floor that is not included in any of the first and second zones Z1, Z2, but in that case, the serviceability deteriorates to some extent.

  Moreover, the control method of the elevator apparatus of Embodiment 6 includes the determination step and the restriction step. In the determination step, it is determined whether or not at least one of the ropes has a swing greater than or equal to the rope swing setting level. And when it determines with the swing more than a rope swing setting level having generate | occur | produced in at least any one rope, a restriction | limiting step is implemented. In the limiting step, the moving range of the cars 8-1 and 8-2 is limited as described above.

  Furthermore, when limiting the movement range of the cars 8-1 and 8-2, the control device 5 detects the rope shake detection car that is the car 8 to which the rope generating the swing of the rope shake set level or higher is connected. Among the first and second zones Z1, Z2, the vehicle is kept in the zone where the rope sway detection car is currently arranged, and the other car 8 is assigned to the zone where the rope sway detection car does not exist.

  However, if all the cars 8 are rope sway detection cars, one of the rope sway detection cars is moved from the zone where it is currently arranged to another zone. When moving the rope sway detection car from the zone where it is currently located to another zone, there is a possibility that the rope sway detection car will enter the car vibration zone that is a problem among the first and second car vibration zones 1d and 1e. Determine if is high. If it is determined that the rope swing is high, the rope swing detection car is stopped at at least one stop point before the first or second car vibration zones 1d and 1e to connect to the rope swing detection car. Attenuate the rope swaying. Control for attenuating the swinging of the rope is the same as in any of the first to fourth embodiments.

  In such an elevator apparatus, it is possible to prevent the car 8 from entering the car vibration zones 1d and 1e in a state in which the rope sways, and the rope can be prevented from being deteriorated in serviceability with a simple configuration. Deterioration of the riding comfort of the car 8 due to vibration can be prevented.

  Further, even when the building shakes for a long time, it is possible to prevent the riding comfort of the car 8 from being deteriorated due to the rope vibration.

  Furthermore, the first and second zones Z1 and Z2 are adjacent or partially overlapped so that the user can move from the lowest floor to the top floor by transferring the machine, and continuous service is possible. .

In the sixth embodiment, the number of units included in the elevator apparatus may be three or more. In this case, the zone can be divided into three or more.
Further, the layout of the elevator apparatus is not limited to the layout of FIG. For example, the present invention can be applied to a 2: 1 roping type elevator, an elevator in which a hoisting machine is disposed at the lower part of a hoistway, and an elevator using two or more counterweights.
Further, in the above example, the main rope 7 and the compensation rope 12 have been described. However, the present invention may be applied to only one of them, and a rope connected to the car 8 such as a governor rope. If so, it is within the scope of the present invention. Further, a belt having a flat cross section is included in the rope according to the present invention if there is a possibility that excessive vibration is generated in the car 8 in the car vibration zone.
Furthermore, the present invention can be applied to all types of elevator devices such as machine room-less elevators, double deck elevators, and one-shaft multi-car elevators in which a plurality of cars are arranged in a common hoistway.

Claims (17)

A car that moves up and down a hoistway provided in the building,
A rope connected to the car, and a control device for controlling the operation of the car,
In the control device, a car vibration zone is set which is a car movement region in which the vibration of the car becomes excessive due to resonance of the rope swing,
The controller is
It is determined whether or not the rope has swayed more than the rope swing setting level.If it is determined that it has occurred, it is determined whether or not the car is likely to enter the car vibration zone. An elevator apparatus that attenuates the swing of the rope by stopping the car at at least one stop before the car vibration zone when it is determined that the car is high. In the control device, a control effective zone that is a car movement area where the rope is likely to be shaken by the shaking of the building is further set,
The control device is configured such that the car stays in the control effective zone for a zone stay upper limit time or more in a state where the building shake detector that detects the shake of the building detects a shake greater than a building shake set level. The elevator apparatus according to claim 1, wherein it is determined that a swing greater than or equal to the rope swing setting level is occurring in the rope.   When the control device determines that a swing of the rope swing set level or higher has occurred in the rope, and the car vibration zone side of the control effective zone occurs, the car vibrates. The elevator apparatus according to claim 2, wherein it is determined that the possibility of entering the zone is high.   The control device, when it is determined that a swing of the rope swing set level or more has occurred in the rope, a control effective destination which is a destination floor in the car vibration zone or an area passing through the car vibration zone The elevator apparatus according to claim 2, wherein when the floor call is generated, it is determined that the car is highly likely to enter the car vibration zone. A rope swing detector for detecting the swing of the rope;
The elevator apparatus according to claim 1, wherein the control device determines whether or not a swing of a rope swing set level or more is generated in the rope based on a signal from the rope swing detector. In the control device, a control effective zone that is a car movement area where the rope is likely to be shaken by the shaking of the building is further set,
When the control device determines that a swing of the rope swing set level or higher has occurred in the rope, and the car vibration zone side of the control effective zone occurs, the car vibrates. The elevator apparatus according to claim 5, wherein it is determined that the possibility of entering the zone is high.   The control device, when it is determined that a swing of the rope swing set level or more has occurred in the rope, a control effective destination which is a destination floor in the car vibration zone or an area passing through the car vibration zone The elevator apparatus according to claim 5, wherein when the floor call is generated, it is determined that the car is likely to enter the car vibration zone.   The elevator apparatus according to any one of claims 1 to 7, wherein the stop location is a stop floor.   The said control apparatus is an elevator apparatus of Claim 8 which stops the said car at the said stop location by producing | generating the new call from a landing.   The said control apparatus is an elevator apparatus of Claim 8 which stops the said car at the said stop location by producing | generating the new call from the inside of a car.   When it is determined that the car needs to be stopped at the stop point, the control device determines that a destination floor before the car vibration zone has been called and the car vibration zone is in front of the car vibration zone. The elevator apparatus according to any one of claims 1 to 10, wherein the destination floor is used as a part or all of the stop portion. A car that moves up and down a hoistway provided in the building,
A rope connected to the car, and a control device for controlling the operation of the car,
In the control device, a car vibration zone is set which is a car movement region in which the vibration of the car becomes excessive due to resonance of the rope swing,
The control device determines whether or not a swing of a rope swing set level or higher has occurred in the rope, and if it is determined that the swing has occurred, an elevator that prohibits the movement of the car to the car vibration zone apparatus. Each having a car, a rope connected to the car, and a plurality of elevator bodies provided in the same bank, and a control device for controlling the operation of the car,
The control device includes a control effective zone which is a car movement area where the rope is likely to be shaken by a shake of a building, and a car vibration zone which is a car movement area where the vibration of the car is excessive due to resonance of the rope shake. Is set,
The control device determines whether or not a swing of a rope swing set level or higher has occurred in at least one of the ropes. If it is determined that the swing has occurred, the movement range of the car is set to the control effective An elevator apparatus that distributes and restricts a first zone including only one of the zone and the car vibration zone and a second zone including only the other of the control effective zone and the car vibration zone.   The control device may allow the rope sway detection car, which is the car to which the rope is swaying more than the rope sway set level, to enter the car vibration zone when the movement range of the car is limited. If the rope swing detection car is determined to be high, the rope swing detection car is stopped at at least one stop point in front of the car vibration zone. The elevator apparatus of Claim 13 which attenuates the swing of the connected rope. Determining whether the rope connected to the cage is swaying more than the rope swaying setting level;
When it is determined that a swing of a rope swing set level or more has occurred in the rope, the car is in a car vibration zone that is a car movement area that resonates with the rope swing and causes excessive vibration of the car. A step of determining whether or not there is a high possibility of entering, and when it is determined that a swing of a rope swing set level or higher has occurred in the rope and the car is highly likely to enter the car vibration zone A method of controlling an elevator apparatus, comprising the step of attenuating the swing of the rope by stopping the car at at least one stop before the car vibration zone. Determining whether the rope connected to the cage is swaying more than a rope swaying setting level, and determining that swaying above the rope swaying setting level is occurring in the rope, A method for controlling an elevator apparatus, comprising: prohibiting movement of the car to a car vibration zone that is a car movement region in which vibration of the car becomes excessive due to resonance of rope swings. Control of an elevator apparatus having a car, a rope connected to the car, and a plurality of elevator bodies provided in the same bank, and a control device for controlling the operation of the car A method,
A step of determining whether or not a swing of a rope swing set level or higher has occurred in at least one of the ropes, and if it is determined that a swing of a rope swing set level or higher has occurred in any of the ropes, The movement range of the car includes a control effective zone which is a car movement area where the rope is likely to be shaken by a building shake, and a car vibration zone which is a car movement area where the vibration of the car becomes excessive due to resonance of the rope shake. A method for controlling an elevator apparatus, comprising the steps of: distributing and limiting a first zone including only any one of the control zone and a second zone including only the other of the control effective zone and the car vibration zone.

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