JP2014159328A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator capable of reducing rope vibrations due to long-period vibrations of a building.SOLUTION: An elevator device includes: an acceleration sensor 31 which detects long-period vibrations of a building; a rope vibration waveform estimation part 33 which generates a vibration waveform of a rope on a floor where a car is at a stop based upon the detected long-period vibration waveform of the building; a rope hitch driving control part 34 which generates a waveform signal opposite in phase to the vibration waveform of the rope; and rope hitch driving devices M1, M2 which vibrate a rope hitch device 20 for connecting the rope to the car with an output signal of the rope hitch driving control part 34.

Description

  The present invention relates to an elevator apparatus having a long-period control operation function.

  Conventionally, long-period control operation of elevators has been provided with a long-period vibration detector in the machine room above the elevator hoistway, and when the long-period vibration detector detects the vibration of the building, it moves to the retreat floor where there is no rope resonance It was stopped. However, when long-period shaking of the building is detected, depending on the stop position of the car, it takes time to move to the set retreat floor, and passengers may feel uneasy. In addition, there was a risk of damaging peripheral equipment in the hoistway due to rope vibrations caused by the shaking of the building.

JP 2008-81290 A

  The problem to be solved by the present invention is to stop the elevator at the nearest floor without stopping at a predetermined evacuation floor and to evacuate the passengers when the shaking of the building that requires long-period control operation is sensed. It is an object of the present invention to provide an elevator apparatus that can reduce the roll of a rope in a floor.

  The elevator apparatus according to the present invention is arranged such that a car hangs on a rope in a hoistway formed in a building and moves up and down, and is slidably disposed on the lower surface of the upper beam of the car. Rope hitch device, a rope hitch drive device that drives the rope hitch device while sliding on the upper beam lower surface of the car, a long-period sway detector that detects a long-cycle sway of the building, and this detection When the long-period shaking of the building is detected by the unit, the operation control unit that stops the car at the nearest stop floor, and the vibration waveform of the rope at the floor where the car is stopped by the operation control unit are estimated A rope vibration waveform estimating unit that generates a rope hitch drive signal having a phase opposite to that of the rope vibration waveform estimated by the rope vibration waveform estimation unit. Characterized by comprising a rope hitch drive controller to further vibrate the rope hitch device.

  Further, in the elevator apparatus, the rope hitch driving apparatus drives the rope hitch apparatus to vibrate in a two-dimensional plane on the lower beam lower surface of the car.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the whole system of 1st Embodiment concerning the elevator apparatus of this invention. It is a perspective view which shows the structure of the passenger car of FIG. It is the perspective view which expanded the principal part of FIG. 2 further. 3 is a side sectional view of the main part. It is a figure which shows the structure of the rope hitch drive device in 1st Embodiment. Fig. 6 (a) shows the seismic waveform of the seismometer, and Fig. 6 (b) shows the output waveform of the acceleration sensor installed on the top of the building. Indicates. It is a flowchart for demonstrating operation | movement of 1st Embodiment. It is a figure which shows the waveform of a main rope vibration and a rope hitch drive signal. It is a sectional side view which shows the structure of the principal part containing the rope hitch part of the passenger car which can install the elevator apparatus which concerns on the 2nd Embodiment of this invention. It is a top view of the principal part shown in FIG. It is a flowchart for demonstrating operation | movement of 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a system configuration diagram showing a first embodiment of an elevator apparatus according to the present invention. FIG. 2 is a perspective view showing the configuration of the car of FIG. 1, and FIG. 3 is an enlarged perspective view of the main part of FIG.

  As shown in FIG. 1, the elevator apparatus includes a hoistway 100 provided in the vertical direction of the building and a machine room 200 installed above the hoistway 100. In addition, although the elevator apparatus shown in FIG. 1 has exemplified the one-to-one roping method, it can also be applied to other roping methods such as a two-to-one roping method.

  Inside the machine room 200, a hoisting machine 10 having a main sheave 10a on which the main rope 11 is hung and a drive motor (not shown) for driving the main sheave 10a is installed.

  A main rope 11 wound around the hoisting machine 10 suspends a car 12 and a counterweight 13 in a lifting manner in a hoistway 100.

  Further, depending on the specifications, both ends of the compen- sation rope 14 are connected to the lower part of the car 12 and the counterweight 13. The compensation rope 14 is disposed below the main rope 11 in the hoistway 100. As shown in FIG. 1, the main rope 11 and the compensation rope 14 are connected in a loop shape within the hoistway 100.

  The compensator 14 is supported by a compensator 15 when it is necessary to apply tension to the compensator 14 at its lower end in addition to its own weight. A weight 15a is suspended from the compensatory 15 so that tension is applied to the compensatory rope 14 due to the weight of the compensatory 15 and the weight 15a, and it is guided in the vertical direction by a guide rail (not shown). .

  The car 12 and the counterweight 13 can freely move in the vertical direction in the hoistway 100 by the main rope 11 hung on the hoisting machine 10. As shown in FIG. 2, the car 12 is a box-shaped container that accommodates passengers, and includes an internal space 12 a and a car frame 12 b provided around the inner space 12 a.

  The main rope 11 includes a plurality of, for example, eight thin ropes, and is fixed to one end of the rope socket 18. The other end of the rope socket 18 is connected to the terminal rod 19.

  Car frames 16 a and 16 b that can sufficiently withstand the combined weight of the car 12 and passengers are fixed to both ends of the ceiling portion 12 c of the car 12. On the upper surfaces of the car frames 16a and 16b, inverted U-shaped upper beams 17a and 17b are fixed so as to be bridged therebetween.

  A rope hitch device 20 is disposed between the ceiling 12c of the car 12 and the lower surfaces of the upper beams 17a and 17b, as shown in FIG. The rope hitch device 20 includes a movable hitch plate 201, anti-vibration rubbers 202 a and 202 b, and a sliding plate 203.

  As shown in FIG. 4, the movable hitch plate 201 is formed of a hollow plate. The movable hitch plate 201 is formed with a rod insertion hole 201a through which the terminal rod 19 can be inserted. As shown in FIGS. 2 and 3, the rectangular plate-shaped sliding plate 203 is formed with a rod insertion hole 203a through which the terminal rod 19 can be inserted at a position corresponding to the rod insertion hole 201a.

  Also, as shown in FIG. 4, screw holes 201b and 201c are formed at two locations on the opposite side surfaces of the movable hitch plate 201 in the longitudinal direction.

  The movable hitch plate 201 and the sliding plate 203 are disposed to face each other via vibration-proof rubbers 202a and 202b. The anti-vibration rubbers 202a and 202b are formed, for example, by laminating a metal plate and a rubber material.

  Sliding portions 203b and 203c on the belt are formed at positions facing the upper beams 17a and 17b on both sides of the upper surface on the long side of the sliding plate 203. The sliding portions 203b and 203c may be pasted with a resin material that improves sliding, or may be applied with grease.

  The lower end of the end rod 19 whose upper end is fixed to the rope socket 18 passes through the rod insertion hole 203a of the sliding plate 203 and the rod insertion hole 201a of the movable hitch plate 201, respectively. The lower end of the terminal rod 19 protrudes downward from the lower surface of the movable hitch plate 201. A spring member 23 such as a coil spring and a spring receiving member 24 are fitted into the protruding portion.

  A screw portion is formed on the lower end side of the terminal rod 19, and a nut 25 is screwed to the screw portion. Therefore, even if a downward biasing force by the spring member 23 acts on the spring receiving member 24, the downward displacement of the spring receiving member 24 is prevented.

  As shown in FIG. 2, the main rope 11 and the terminal rod 19 are loaded with the car load of the car 12. The spring member 23 supported by the spring receiving member 24 is compressed by the load of the car 12, and the elastic hitch plate 201 and the sliding plate 203 are compressed by the elastic beams 202a and 202b through the upper beam 17a, Press to 17b. That is, the spring receiving member 24 functions as a pressing member for the rope hitch device 20.

  Next, as shown in FIGS. 4 and 5, the movable hitch plate 201 is horizontally supported by two rotatable shafts 41a and 41b arranged in parallel. The two shafts 41a and 41b are provided so as to penetrate the movable hitch plate 201 in the longitudinal direction. Ball screws 42a and 42b are formed on the outer periphery of the shaft 41a. The ball screw 42 a of the shaft 41 a is screwed into the screw hole 201 b of the movable hitch plate 201. Further, the ball screw 42 b of the shaft 41 b is screwed into the screw hole 201 c of the movable hitch plate 201.

  On the other hand, on the car frame 16a, the rotation axes of the first and second motors M1 and M2 are fixed in parallel. One end of the shaft 41a is connected to the rotating shaft of the first motor M1 by a coupling means (not shown). One end of the shaft 41b is connected to the rotating shaft of the second motor M2 by a coupling means (not shown).

  The other end of the shaft 41a is rotatably supported by bearing means (not shown) provided on a bearing car frame 16c fixed on the car frame 16a. Similarly, the other end of the shaft 41b (FIG. 3) is rotatably supported by bearing means (not shown) provided on a bearing car frame 16c fixed on the car frame 16a.

  When the first and second motors M1 and M2 rotate forward, the shafts 41a and 41b also rotate forward. When the shafts 41a and 41b rotate forward, the ball screws 42a. The movable hitch plate 201 moves in the direction of arrow X1 in the figure due to the relationship between the screw holes 201b and 201c screwed with 42b. When the first and second motors M1 and M2 are rotated in the reverse direction, the movable hitch plate 201 moves in the direction of the arrow X2 in the drawing. The movement amount is, for example, about 50 mm in the X1 direction and about 50 mm in the X2 direction.

  As shown in FIG. 1, the machine room 200 is provided with a long-period sway detector 30 for detecting a long-period sway of a building. The long-period vibration detection unit 30 includes an acceleration sensor 31, a low-pass filter 32, and a rope vibration waveform estimation unit 33. The long-period shaking detector 30 detects the amount of shaking in the primary mode of the building due to long-period ground motion or strong wind.

  The acceleration sensor 31 is a device that detects a roll of a building and outputs it as an electrical signal. The acceleration sensor 31 is provided in the machine room 200 provided in the upper part of the hoistway formed in the building. However, when the building shakes, the building swings around the ground. Therefore, when the building is shaken in the primary mode due to long-period ground motion or strong wind, the uppermost shake is the largest. The acceleration detected by the acceleration sensor 31 is supplied to the low-pass filter 32 as an electrical signal.

  The low-pass filter 32 blocks an input having a frequency higher than the frequency of the primary mode fluctuation. Therefore, the low-pass filter 32 can sense only the fluctuation in the primary mode, in other words, the long-period fluctuation. Then, the long period fluctuation amount obtained via the low pass filter 32 is supplied to the rope vibration waveform estimation unit 33.

  When the elevator car stops on the nearest stop floor, the rope vibration waveform estimation unit 33 estimates the vibration waveform of the main rope on the stop floor. The vibration waveform of the main rope at this stop floor is estimated by calculation from the waveform of long-period vibration obtained from the low-pass filter 32. That is, from the long-period vibration waveform of the building in the machine room, the vibration waveform of the main rope on the stop floor that is a predetermined distance away from the machine room is the vibration of the main rope of a predetermined length to which long-period vibration is applied in the machine room. It can be estimated by calculation based on theory. Here, as the vibration waveform of the main rope at the stop floor, the amplitude, period, and frequency of the rope vibration are estimated, and these physical quantities are output as an output signal of the rope vibration waveform estimation unit 33. The vibration waveform of the main rope at the stop floor estimated by the rope vibration waveform estimation unit 33 of the long period swing detection unit 30 is supplied to the rope hitch drive control unit 34.

  The rope hitch drive control unit 34 controls the drive of the first and second motors M1 and M2 based on the vibration waveform signal of the main rope at the stop floor estimated by the rope vibration waveform estimation unit 33 of the long period swing detection unit 30. I do. In this control, for example, if the building shakes in the direction corresponding to the arrow X1 in FIG. 5, the first and second motors M1 and M2 are rotated in the opposite directions, and the movable hitch plate 201 is moved in the arrow X2 direction. To do. That is, the rope hitch drive control unit 34 drives the movable hitch plate 201 so as to vibrate in a phase opposite to that of the main rope.

  FIG. 6 is a vibration waveform diagram showing a shaking state of a building when a long-period earthquake occurs. FIG. 6A shows the seismic waveform by the seismometer, and FIG. 6B shows the output waveform of the acceleration sensor installed at the top of the building. Since buildings such as buildings have a vibration period unique to the building, the output waveform of the acceleration sensor installed at the top of the building does not necessarily match the earthquake waveform. Generally, the higher the building, the longer its natural period. In high-rise buildings, the vibration period unique to the building coincides with the period of long-period ground vibration, causing so-called resonance, and may shake greatly.

  Next, the operation of the first embodiment will be described with reference to FIG.

  FIG. 7 is a flowchart for explaining control for reducing the swing of the main rope that suspends the car based on the long-period swing amount of the building detected by the acceleration sensor 31. Although long-period shaking is caused by earthquakes and strong winds, here, long-period shaking of buildings due to earthquakes will be described.

  The acceleration sensor 31 installed in the top of the building and in the machine room 200 detects the earthquake waveform shown in FIG. 6A, and determines whether a long-period vibration is included from the output waveform (step S1). This determination is made by supplying the output signal of the acceleration sensor 31 to the low-pass filter 32 and extracting only the low-frequency signal corresponding to the long-period vibration waveform.

  When long-period shaking is detected, the elevator car in motion stops at the nearest floor in response to a command from an operation control device (not shown) to evacuate the passengers.

  The long period vibration waveform signal extracted by the low pass filter 32 is supplied to the rope vibration waveform estimation unit 33.

  The rope vibration waveform estimation unit 33 estimates the vibration waveform of the main rope on the floor where the car is stopped, that is, the amplitude, the period, the frequency, etc. of the vibration waveform from the supplied long-period vibration waveform signal (step S2). ). FIG. 8A shows an example of the vibration waveform of the main rope estimated in this way. The rope vibration waveform estimation unit 33 supplies the estimated main rope vibration waveform signal to the rope hitch drive control unit 34.

  The rope hitch drive control unit 34 generates a rope hitch drive signal having a vibration waveform having an opposite phase to the vibration waveform of the main rope on the floor where the supplied car is stopped (step S3). An example of the rope hitch drive signal generated in this way is shown in FIG. 8B shows an analog signal, a digital signal corresponding to the analog signal in FIG. 8B may actually be used, but the description thereof is omitted.

  The rope hitch drive control unit 34 also supplies the rope hitch drive signal generated in step S3 to the first and second motors M1 and M2 to rotate them (step S4). As a result, the movable hitch plate 201 of the rope hitch device 20 is driven so as to vibrate in the opposite phase to the swing of the main rope.

  By performing such a process, it becomes possible to reduce the vibration amount of the main rope at the stop floor of the elevator. In this way, even in the case of long-period shaking, where the elevator car must originally be moved to the operation evacuation floor and stopped, after stopping the passenger and evacuating passengers on the floor, In order to reduce shaking, it is not always necessary to move to the retreat floor.

  In this embodiment, since the movable hitch plate that supports the car is moved in the opposite direction to the long-period shaking, the long-period shaking can be reduced. As a result, it is possible to quickly suppress anxiety about passenger shaking.

(Second Embodiment)
FIGS. 9 and 10 are diagrams for explaining a second embodiment of the elevator apparatus according to the present invention. FIG. 9 is a side sectional view showing the structure of a main part including a rope hitch portion of a car, and FIG. FIG. The same components as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this embodiment, the car can be moved not only in a one-dimensional direction but also in any direction within a two-dimensional plane. In addition, as an acceleration sensor for detecting shaking of a building due to an earthquake or strong wind, a 2-axis acceleration sensor 311 capable of detecting acceleration in a horizontal two-dimensional direction (X-axis direction and Y-axis direction) of the building is installed. ing.

  The detection result of the biaxial acceleration sensor 311 is supplied to the rope vibration waveform estimation sensor via the low pass filter 32. As described above, when the elevator car stops at the nearest stop floor, the rope vibration waveform estimation unit 33 estimates the vibration waveforms in the X-axis and Y-axis directions of the main rope at the stop floor. The rope hitch drive control unit 34 controls first and second actuators 51a and 52a, which will be described later, based on the main rope vibration waveforms in the X-axis and Y-axis directions from the rope vibration waveform estimation unit 33.

  The rope hitch device 50 includes bearings 51 and 52, a bearing guide portion 50a, and bearing receiving / sharing guide portions 50b to 50d.

  In the rope hitch device 50, as shown in FIG. 11, a first actuator 51a and a link 51b are coupled to one side orthogonal to the upper beams 17a and 17b. ) Driven in the direction. The rope hitch device 50 has a second actuator 52a and a link 52b coupled to one side parallel to the upper beams 17a and 17b. The rope hitch device 50 is driven in the vertical (Y) direction in the drawing. The For example, hydraulic small jacks are used as the first and second actuators 51a and 52a. The first actuator 51 a is attached to a car frame 16 b that is fixed on the car 12. The second actuator 52a is attached to the car frame 16d fixed on the car 12 in a state orthogonal to the car frames 16a and 16b.

  Note that the amount of movement of the rope hitch device 50 in the left-right (X) direction by the first actuator 51a is about 100 mm, as in the first embodiment. The amount of movement of the second actuator 52a in the vertical (Y) direction is about 100 mm, as in the horizontal direction.

  As shown in FIG. 10, a rod insertion hole 50a1 into which the end rod 19 can be inserted is formed in the bearing guide portion 50a. The bearing guide 50c is similarly formed with a rod insertion hole 50c1 through which the terminal rod 19 can be inserted. Further, a rod insertion hole 50d1 into which the terminal rod 19 can be inserted is also formed in the bearing guide portion 50d. The rod insertion holes 50a1, 50c1, 50d1 formed in the bearing guide portions 50a, 50c, 50d are concentrically arranged in the vertical direction.

  The other end of the end rod 19 having one end fixed to the rope socket 18 is inserted through the rod insertion holes 50d1, 50c1, and 50a1, respectively. The other end of the terminal rod 19 protrudes downward from the lower surface of the bearing guide portion 50a. A spring member 23 such as a coil spring and a spring receiving member 24 are fitted into the protruding portion.

  A screw portion is formed on the other end side of the terminal rod 19, and a nut 25 is screwed to the screw portion. Therefore, even if a downward biasing force by the spring member 23 acts on the spring receiving member 24, the downward displacement of the spring receiving member 24 is prevented.

  A car load of the car 12 is applied to the main rope 11 and the terminal rod 19. The spring receiving member 24 is in a state where the rope hitch device 50 is pressed against the upper beams 17a and 17b by the load of the car 12 via the spring member 23. That is, the spring receiving member 24 functions as a pressing member for the rope hitch device 50.

  Next, the operation of the second embodiment will be described with reference to FIG. FIG. 11 is a flowchart for explaining the control for reducing the rolling of the car rope stopped on a predetermined floor based on the long-period shaking amount of the building detected by the biaxial acceleration sensor 311 shown in FIG.

  It is determined from the seismic waveform installed on the top of the building and detected by the two-axis acceleration sensor 311 in the machine room 200 using the low-pass filter 32 (step S1). When a long-period swing is detected, the elevator car that is moving stops at the nearest floor in response to a command from the operation control unit 9 shown in FIG. It is determined whether the vibration is in the X-axis direction or the Y-axis direction (step S2). When the long-period vibration is determined to be in the X-axis direction, the long-period vibration wave signal in the X-axis direction is sent to the rope vibration waveform estimation unit 33, where the X-axis direction rope vibration waveform is estimated (step S3).

  That is, in step S3, the rope vibration waveform estimation unit 33 determines the vibration waveform in the X-axis direction of the main rope on the floor where the car is stopped from the long-period vibration waveform in the X-axis direction. Estimate the amplitude, period, frequency, etc. of the waveform. The main rope vibration waveform in the X-axis direction estimated in step S3 is supplied to the rope hitch drive control unit 34, where an antiphase rope hitch drive signal waveform is generated (step S4).

  The rope hitch drive signal generated by the rope hitch drive control unit 34 is supplied to the first actuator 51a and drives it in the positive and negative directions on the X axis (step S5). As a result, the movable hitch plate 201 of the rope hitch device 20 is driven so as to vibrate in the opposite phase to the swing of the main rope in the X-axis direction.

  Next, when it is determined in step S2 that the long-period vibration is in the Y-axis direction, the long-period vibration wave signal in the Y-axis direction is sent to the rope vibration waveform estimation unit 33, where the Y-axis direction rope vibration waveform is estimated. (Step S8).

  That is, in step S8, the rope vibration waveform estimation unit 33 determines the vibration waveform in the Y-axis direction of the main rope on the floor where the car is stopped from the long-cycle vibration waveform in the Y-axis direction. Estimate the amplitude, period, frequency, etc. of the waveform. The main rope vibration waveform in the Y-axis direction estimated in step S8 is supplied to the rope hitch drive control unit 34, where an antiphase rope hitch drive signal waveform is generated (step S9).

  The rope hitch drive signal generated by the rope hitch drive control unit 34 is supplied to the second actuator 52a and drives it in the positive and negative directions on the Y axis (step S10). As a result, the movable hitch plate 201 of the rope hitch device 20 is driven so as to vibrate in a phase opposite to the main rope swing in the Y-axis direction.

  As a result, as in the case of the first embodiment, even in the case of a long-period swing that originally needs to move and stop the elevator car to the operation evacuation floor, stop the passenger at the nearest floor. After evacuation, it is not always necessary to move to the evacuation floor in order to reduce the shaking of the car on that floor.

  In this embodiment, the position of the rope hitch device 50 can be freely moved in a horizontal two-dimensional plane, so that the car 12 can be moved more effectively with respect to the swing of the rope 11 and the compensating rope 14. It becomes possible to make it.

  The present invention is not limited to the contents described in the embodiment described above. For example, in the first embodiment, the rope hitch device 50 is moved using the first and second motors M1 and M2, but the second embodiment is used instead of the first and second motors M1 and M2. The actuator shown in (1) may be used.

  In the above embodiment, the rope hitch provided at the top of the car is vibrated in the opposite phase to the vibration of the main rope due to the shaking of the building, but is not limited to the rope hitch provided at the top of the car. The rope hitch that supports the counterweight may be similarly vibrated. These may be used in combination.

  Although some embodiments have been described above, these embodiments are presented as examples, and are not intended to limit the scope of the present invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 100 Hoistway 200 Machine room 9 Operation control part 10 Hoisting machine 11 Main rope 12 Car 14 Compen rope 19, 27 End rod 16a-16d Car frame 17a, 17b Upper beam 20, 50 Rope hitch device 201 Movable hitch plate 201a Rod Insertion holes 202a and 202b Anti-vibration rubber 203 Sliding plates 203b and 203c Sliding parts 41a and 41b Shafts 42a and 42b Ball screw M1 First motor M2 Second motor 30 Long period vibration detecting part 31 Acceleration sensor 32 Low pass filter 33 Rope vibration waveform Estimating section 34 Rope hitch drive control section 311 Two-axis acceleration sensor 51a First actuator 52a Second actuator 51, 52 Bearing 50a Bearing guide sections 50b to 50d Bearing bearing combined guide section

The elevator apparatus according to the present invention is arranged such that a car hangs on a rope in a hoistway formed in a building and moves up and down, and is slidably disposed on the lower surface of the upper beam of the car. Rope hitch device, a rope hitch drive device that drives the rope hitch device while sliding on the upper beam lower surface of the car, a long-period sway detector that detects a long-cycle sway of the building, and this detection When the long-period shaking of the building is detected by the unit, the operation control unit that stops the car at the nearest stop floor, and the vibration waveform of the rope at the floor where the car is stopped by the operation control unit are estimated And a rope hitch that vibrates the rope hitch device with a vibration waveform having an opposite phase to the rope vibration waveform estimated by the rope vibration waveform estimation unit. Comprising a dynamic control unit, a, between the rope hitch device and the rope hitch driving apparatus, characterized by being interposed rubber vibration insulator.

Long side upper surface of each side of the upper beam 17a of the sliding plate 203, the 17b position opposed to the belt-shaped sliding portion 203b, 203c are formed. The sliding portions 203b and 203c may be pasted with a resin material that improves sliding, or may be applied with grease.

On the other hand, on the car frame 16a, the rotation axes of the first and second motors M1 and M2 are fixed in parallel. One end of the shaft 41a is coupled to the rotating shaft of the first motor M1 by coupling means (not shown). One end of the shaft 41b is coupled to the rotation shaft of the second motor M2 by a coupling means (not shown).

In the rope hitch device 50, as shown in FIG. 10 , a first actuator 51a and a link 51b are coupled to one side orthogonal to the upper beams 17a and 17b. ) Driven in the direction. The rope hitch device 50 has a second actuator 52a and a link 52b coupled to one side parallel to the upper beams 17a and 17b. The rope hitch device 50 is driven in the vertical (Y) direction in the drawing. The For example, hydraulic small jacks are used as the first and second actuators 51a and 52a. The first actuator 51 a is attached to a car frame 16 b that is fixed on the car 12. The second actuator 52a is attached to the car frame 16d fixed on the car 12 in a state orthogonal to the car frames 16a and 16b.

Claims (5)

  A rope hitch device that is slidably disposed on the lower beam of the upper beam of the car, suspended from a rope in the hoistway formed in the building, and slidably fixed on the lower beam of the car, A rope hitch driving device that drives the rope hitch device while sliding on the lower beam of the upper car, a long-period sway detector that detects a long-period sway of the building, and a long-period of the building by the detector An operation control unit that stops the car at the nearest stop floor when a swing is detected, and a rope vibration waveform estimation unit that estimates a vibration waveform of the rope at the floor where the car is stopped by the operation control unit; A rope hitch drive control unit that vibrates the rope hitch device with a vibration waveform having an opposite phase to the rope vibration waveform estimated by the rope vibration waveform estimation unit. Elevator apparatus according to symptoms.   The rope hitch driving device includes a motor fixed to the upper surface of the car, a rotating shaft that is rotated by the motor and has a ball screw formed on the outer peripheral surface, and the rope hitch device so that the rotating shaft is screwed. The elevator apparatus according to claim 1, wherein the elevator apparatus includes a formed screw hole.   The elevator apparatus according to claim 2, wherein the long-period vibration detection unit is an acceleration sensor.   The rope hitch drive device includes a first actuator installed on the upper surface of the car so as to drive the rope hitch device so that the rope hitch device can move forward and backward in the X-axis direction set on the upper surface of the car; A second actuator installed on the upper surface of the car so as to drive the rope hitch device so as to move forward and backward in the Y-axis direction set on the upper surface of the car. The elevator apparatus according to claim 1.   The elevator apparatus according to claim 4, wherein the long-period vibration detection unit is a biaxial acceleration sensor.

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