CN110709343B - Main rope vibration-stopping device for elevator - Google Patents
Main rope vibration-stopping device for elevator Download PDFInfo
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- CN110709343B CN110709343B CN201780091676.8A CN201780091676A CN110709343B CN 110709343 B CN110709343 B CN 110709343B CN 201780091676 A CN201780091676 A CN 201780091676A CN 110709343 B CN110709343 B CN 110709343B
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- rope
- main rope
- vibration
- rotating body
- elevator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The elevator main rope vibration damping device of the present invention is used for an elevator having a main rope, one end of which is fixed to a lifting body provided in a hoistway to be lifted freely, and the other end of which is fixed to a counterweight, and comprises: a main rope vibration-stopping rope; and a winding tool that winds the main rope vibration stopping rope around the main rope, wherein one end of the main rope vibration stopping rope is fixed to the top of the hoistway, and the winding tool winds the main rope vibration stopping rope around the main rope between one end and the other end of the main rope vibration stopping rope.
Description
Technical Field
The present invention relates to a main rope vibration suppressing device for an elevator, which suppresses vibration of a main rope of the elevator.
Background
The car of the elevator is guided by a guide rail fixed to the hoistway, and is lifted and lowered in the hoistway by the main rope. In an elevator having such a configuration, when the hoistway swings due to an earthquake or wind pressure, the main rope resonates and largely oscillates, and the car may come into contact with various devices in the hoistway. In this case, an obstacle is generated to the operation of the elevator.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2007-284222
Disclosure of Invention
Problems to be solved by the invention
However, in the vibration damping device described in patent document 1, when the car passes through the support portion, the vibration damping body engages with the support or the car. Therefore, when the car is engaged, there is a problem that an impact is applied to the car or noise is generated between the vibration stopper and the mount or the car, which gives passengers a sense of discomfort.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a main rope vibration damping device for an elevator, which suppresses vibration of a main rope without generating impact and noise.
Means for solving the problems
The elevator main rope vibration damping device of the present invention is used for an elevator having a main rope, one end of which is fixed to a lifting body provided in a hoistway to be lifted freely, and the other end of which is fixed to a counterweight, and comprises: a main rope vibration-stopping rope; and a winding tool that winds the main rope vibration stopping rope around the main rope, wherein one end of the main rope vibration stopping rope is fixed to the top of the hoistway, and the winding tool winds the main rope vibration stopping rope around the main rope between one end and the other end of the main rope vibration stopping rope.
Effects of the invention
Thus, the vibration damping device for the main rope for the elevator can be provided, which restrains the vibration of the main rope without generating impact and noise.
Drawings
Fig. 1 is a front view of an elevator including an elevator main rope vibration damping device according to embodiment 1 of the present invention.
Fig. 2 is a top view of the elevator shown in fig. 1.
Fig. 3 is a diagram illustrating an effect of the main rope vibration damping device for an elevator according to embodiment 1.
Fig. 4 is a diagram illustrating an effect of the main rope vibration damping device for an elevator according to embodiment 1.
Fig. 5 is a front view of an elevator including the elevator main rope vibration damping device according to embodiment 2.
Fig. 6 is a top view of the elevator shown in fig. 5.
Fig. 7 is a front view of an elevator including the main rope vibration damping device for an elevator according to embodiment 3.
Fig. 8 is a top view of the elevator shown in fig. 7.
Fig. 9 is a schematic view of the vibration dampening counterweight of fig. 7 and 8.
Fig. 10 is a front view of an elevator including the main rope vibration damping device for an elevator according to embodiment 4.
Fig. 11 is a top view of the elevator shown in fig. 10.
Fig. 12 is a schematic view showing a lower portion of the rotating body.
Fig. 13 is a view of the cam as viewed from the inside of the hoistway.
Fig. 14 is a front view of an elevator including a device that is a modification of the elevator main rope vibration damping device described in embodiment 4.
Detailed Description
Hereinafter, an embodiment of the elevator main rope vibration suppressing device according to the present invention will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description is omitted.
Fig. 1 is a front view of an elevator including an elevator main rope vibration damping device according to embodiment 1 of the present invention.
As shown in fig. 1, one ends of three main ropes 4 are fixed to a car 2 provided in a hoistway 1 so as to be vertically movable. The other end of the main rope 4 is fixed to the counterweight 3. The car 2 constitutes an elevating body.
A vibration stopping rope 10 as a main rope vibration stopping rope is provided around the main rope 4. One end of the vibration suppressing rope 10 is fixed to a rope fixing member 11 provided at the ceiling 1a of the hoistway 1.
Fig. 2 is a top view of the elevator shown in fig. 1. As shown in fig. 2, a disc-shaped rotating body 21 is provided on the upper portion 2a of the car 2 so as to surround the main ropes 4. A motor, not shown, is attached to the rotary body 21 as a rotary body driving unit. The rotating body 21 is electrically controlled to rotate counterclockwise at a constant speed when the car 2 descends, and to rotate clockwise at a constant speed when the car 2 ascends.
A drum 22 is provided on the outer peripheral side of the rotating body 21. The drum 22 rotates around the main rope 4 while the rotating body 21 rotates. The other end of the vibration suppressing rope 10 is fixed to the drum 22. The vibration stopping rope 10 is wound around the main rope 4 between one end and the other end of the vibration stopping rope 10.
When the car 2 descends, the rotating body 21 rotates counterclockwise around the main rope 4. The drum 22 rotates counterclockwise around the main rope 4 together with the rotation of the rotating body 21. Further, the spool 22 rotates clockwise. In this case, the vibration suppressing rope 10 is supplied from the drum 22, and the vibration suppressing rope 10 is wound around the main rope 4. The vibration suppressing rope 10 is wound around the main ropes 4, and combines three main ropes 4 into one. Further, the vibration suppressing rope 10 suppresses the main rope 4 from oscillating in the horizontal direction.
When the car 2 ascends, the rotating body 21 rotates clockwise around the main ropes 4. The drum 22 rotates clockwise around the main rope 4 together with the rotation of the rotating body 21. The spool 22 rotates counterclockwise. In such a case, the vibration suppressing rope 10 is loosened from the main rope 4. The loosened vibration damping rope 10 is wound up on the drum 22.
Next, fig. 3 and 4 show a plan view and a front view of a conventional elevator in which the elevator main rope vibration damping device is not installed, respectively. The effect of the elevator main rope vibration stopping device according to embodiment 1 will be described with reference to fig. 3 and 4.
As shown in fig. 3, in the conventional elevator, the elevator main rope vibration damping device of embodiment 1 is not provided, but only the car 2 is guided by the guide rails 5 and the main ropes 4 are fixed.
Fig. 4 shows the oscillations of the main ropes caused by vibrations etc. in the elevator. In such a conventional elevator, when the hoistway 1 swings due to an earthquake, wind pressure, or the like, the main ropes 4 resonate and largely oscillate, and as shown in fig. 4, three main ropes 4 may be spread. When the main ropes 4 oscillate, the car 2 may come into contact with various devices in the hoistway 1 and cause an obstacle to travel of the car 2.
As described above, the main rope vibration stopping device for an elevator in embodiment 1 includes the vibration stopping rope 10 and the winding tool 20 that winds the vibration stopping rope 10 around the main rope 4, wherein one end of the vibration stopping rope 10 is fixed to the ceiling portion 1a of the hoistway 1, and the winding tool 20 winds the vibration stopping rope 10 around the main rope 4 between one end and the other end of the vibration stopping rope 10.
Thus, the vibration damping device for the main rope for the elevator can be provided, which restrains the vibration of the main rope without generating impact and noise.
The winding tool 20 is attached to the car 2, and includes a rotating body 21 and a drum 22 that rotate around the main rope 4, and a motor that rotates the rotating body 21 and the drum 22 counterclockwise and clockwise, and the other end of the vibration suppressing rope 10 is fixed to the drum 22. When the car 2 is lowered, the motor rotates the drum 22 counterclockwise, and the drum 22 winds the vibration suppressing rope 10 around the main rope 4, and when the car 2 is raised, the motor rotates the drum 22 clockwise, and the drum 22 winds the vibration suppressing rope 10 around the main rope 4.
Thus, the vibration damping device for the main rope for the elevator can be provided, which restrains the vibration of the main rope without generating impact and noise.
When the car 2 ascends, the vibration suppressing rope 10 is wound around the winding drum 22. Therefore, the extra vibration suppressing rope 10 does not hang down into the hoistway 1. This enables the car 2 to smoothly travel.
Next, an elevator main rope vibration damping device according to embodiment 2 will be described with reference to fig. 5 and 6. In embodiment 2, the vibration suppressing rope winds the auxiliary rope together with the main rope.
Fig. 5 is a front view of an elevator including the elevator main rope vibration damping device according to embodiment 2. As shown in fig. 5, a rotating body 23 is provided on the upper portion 2a of the car 2. The rotor 23 is rotated by a motor, not shown, as a rotor driving unit. The rotating body 23 is provided with a reel 22. The other end of the vibration suppressing rope 10 is fixed to the drum 22.
An auxiliary rope 30 is provided in the hoistway 1 separately from the main rope 4. One end of the auxiliary rope 30 is fixed to a rope mount 31 provided at the ceiling 1a of the hoistway 1. The other end of the auxiliary rope 30 is fixed to a rope fixing member 32 provided at the bottom 1b of the hoistway 1. The vibration suppressing rope 10 is wound around the auxiliary rope 30.
Fig. 6 is a top view of the elevator shown in fig. 5. As shown in fig. 6, the rotating body 23 is arranged to rotate around the main rope 4 and the auxiliary rope 30. The rotation of the rotator 23 causes the drum 22 to rotate around the main rope 4. When the car 2 descends, the rotating body 23 and the drum 22 are controlled to rotate counterclockwise. At this time, the spool 22 rotates clockwise. When the car 2 ascends, the rotating body 23 and the winding drum 22 are controlled to rotate clockwise. At this time, the drum 22 rotates counterclockwise.
When the car 2 descends, the rotating body 23 rotates counterclockwise. The drum 22 rotates counterclockwise around the main rope 4 and the auxiliary rope 30 together with the rotating body 23. Therefore, the drum 22 winds the vibration suppressing rope 10 around the main rope 4 and also winds around the auxiliary rope 30.
The vibration suppressing rope 10 is wound around the main rope 4. Therefore, the vibration suppressing rope 10 combines three main ropes 4 into one. In addition, the vibration suppressing rope 10 also winds the auxiliary rope 30. The auxiliary ropes 30 are fixed to the top 1a and the bottom 1b of the hoistway 1. Therefore, the vibration suppressing rope 10 is restricted in movement in the horizontal direction by the auxiliary rope 30. Therefore, the vibration suppressing rope 10 can suppress the main ropes 4 combined into one from moving integrally in the horizontal direction.
When the car 2 ascends, the rotating body 23 and the drum 22 rotate clockwise. Therefore, the vibration suppressing rope 10 is loosened from the main rope 4 and the auxiliary rope 30. The loosened vibration damping rope 10 is wound up on the drum 22.
As described above, in the elevator main rope vibration damping device according to embodiment 2, when the car 2 descends, the drum 22 winds the vibration damping rope 10 around the auxiliary rope 30 as well. This can suppress not only the large oscillation of each of the main ropes 4 but also the large oscillation of the main ropes 4 in the combined state.
Next, an elevator main rope vibration damping device according to embodiment 3 will be described with reference to fig. 7 to 9. In embodiment 3, a pulley is used instead of the reel used in embodiments 1 and 2.
Fig. 7 is a front view of an elevator including the main rope vibration damping device for an elevator according to embodiment 3. The vibration suppressing rope 10 has one end fixed to a rope fixing member 11 of the ceiling 1a of the hoistway 1. The vibration preventing rope 10 descends in an obliquely downward direction in the hoistway 1 while rotating once around the main rope 4. A rotating body 24 is provided on the upper portion 2a of the car 2. A motor, not shown, is mounted on the rotor 24 as a rotor driving unit. The rotor 24 is controlled by the rotation of the motor to rotate clockwise and counterclockwise. A direction changing portion 24a, which is a pulley provided in the vertical direction, is provided on the outer peripheral side of the rotating body 24. The vibration suppressing rope 10 changes its direction from downward to horizontal by the direction changing portion 24a of the rotator 24.
Fig. 8 is a top view of the elevator shown in fig. 7. The rotating body 24 is provided with 3 pulley portions 25 in the horizontal direction toward the outside of the rotating body 24. The vibration suppressing rope 10 having passed through the direction converter 24a passes through the three pulley portions 25. The vibration control rope 10 changes its direction from the horizontal direction to the direction of the bottom 1b of the hoistway 1 via a car pulley 6 provided at a corner of the car 2. The other end of the vibration stopping rope 10 is fixed to the vibration stopping weight 42. The car 2 and the car pulley 6 constitute an elevating body.
Fig. 9 is a schematic view of the vibration damper 42 in fig. 7 and 8. The vibration stopping rope 10 is fixed to a vibration stopping weight 42 via a spring 41. A cylindrical hole 43 is formed in the lower portion of the vibration damper 42. A shaft 44 provided at the bottom 1b of the hoistway 1 is inserted into the hole 43. The hole 43 and the shaft 44 restrain the horizontal movement of the vibration damper 42 without interfering with the vertical movement. Therefore, the vibration suppressing rope 10 is free to move in the vertical direction, and is restrained from moving in the horizontal direction. Therefore, tension is applied to the vibration-damping rope 10 in the hoistway 1. The spring 41, the vibration damper 42, the hole 43, and the shaft 44 constitute a tension applying portion 40.
When the car 2 descends, the rotating body 24 rotates counterclockwise by one turn when passing through the middle portion of the hoistway 1. Since the vibration suppressing rope 10 passes through the direction changing portion 24a of the rotator 24, the vibration suppressing rope 10 is wound once around the main rope 4 when the rotator 24 rotates.
When the car 2 ascends, the rotating body 24 rotates clockwise once when passing through the middle portion of the hoistway 1. Therefore, the vibration suppressing rope 10 is loosened by one turn from the main rope 4.
As described above, in the main rope vibration damping device for an elevator in embodiment 3, the winding tool is attached to the car 2, and includes: a rotating body 24 that rotates around the main rope 4 and has a pulley portion 25; and a motor that rotates the rotating body 24 in one direction and the other direction, and the other end of the vibration stopping rope 10 is fixed to a tension applying portion 40 that applies tension to the vibration stopping rope 10 via a pulley portion 25. When the car 2 is lowered, the rotator 24 is rotated counterclockwise by the motor to wind the vibration preventing rope 10 around the main rope 4 by the rotator 24, and when the car 2 is raised, the rotator 24 is rotated clockwise by the motor to loosen the vibration preventing rope 10 from the main rope 4 by the rotator 24.
Thus, the vibration damping device for the main rope for the elevator can be provided, which restrains the vibration of the main rope without generating impact and noise.
The vibration prevention rope 10 is stably disposed in the hoistway 1 by the vibration prevention weight 42 in a state of being wound around the main rope 4 and in a state of being unwound from the main rope 4. Therefore, the problem of the storage space of the loosened vibration damping rope 10 can be eliminated.
Next, an elevator main rope vibration damping device according to embodiment 4 will be described with reference to fig. 10 to 13. In embodiment 4, a cam is used as a means for rotating the rotating body.
Fig. 10 is a front view of an elevator including the main rope vibration damping device for an elevator according to embodiment 4. The vibration suppressing rope 10 has one end fixed to a rope fixing member 11 of the ceiling 1a of the hoistway 1. The vibration preventing rope 10 descends in an obliquely downward direction in the hoistway 1 while rotating once around the main rope 4. The vibration preventing rope 10 passes through a direction changing portion 26a of a rotating body 26 provided in an upper portion 2a of the car 2.
Fig. 11 is a top view of the elevator shown in fig. 10. At the rotating body 26, 3 pulley portions 25 are provided in the horizontal direction toward the outside of the rotating body 26. The vibration suppressing rope 10 having passed through the direction converter 26a passes through the three pulley portions 25. The vibration control rope 10 is directed toward the bottom 1b of the hoistway 1 via a car pulley 6 provided at a corner of the car 2. The other end of the vibration stopping rope 10 is fixed to the vibration stopping weight 42.
Fig. 12 is a schematic view showing a lower portion of the rotating body 26. The rotary body 26 has a gear 51 at a lower portion of the rotary body 26. The gear 51 is coupled to a gear 52 having large and small gears 52a and 52b, a gear 53 having large and small gears 53a and 53b, and a gear 54 by meshing with each other in this order. The gear 54 is provided with a rod-shaped arm 55.
Fig. 13 is a view of the cam as viewed from the inside of the hoistway 1. Cams 28 and 29 are provided near the middle of the hoistway 1 in the height direction, and the cams 28 and 29 are circular arc shaped flat plates, respectively. The cams 28 and 29 are attached to the wall surface of the hoistway 1 in an inclined manner so that the center side of the circular arc becomes the inside of the elevator. The cams 28 and 29 are mounted in parallel. The cam 29 is mounted below the cam 28. The upper end of the cam 29 protrudes beyond the upper end of the cam 28. On the other hand, the lower end of the cam 28 protrudes beyond the lower end of the cam 29.
When the car 2 descends, the arm 55 contacts the upper end of the cam 29. As the car 2 descends, the arm 55 slides along the cam 29, and the arm 55 rotates counterclockwise. The gear 54 rotates counterclockwise together with the arm 55. The rotation of the gear 54 is transmitted to the gear 53b, the gear 53a, the gear 52b, the gear 52a, and the gear 51 in this order, and the gear 51 rotates clockwise. The rotary body 26 rotates clockwise together with the gear 51. When the rotating body 26 rotates clockwise, the vibration suppressing rope 10 is wound around the main rope 4. Therefore, when the car 2 descends, the vibration preventing rope 10 is wound around the main rope 4.
Conversely, when the car 2 ascends, the arm 55 contacts the lower end of the cam 28. As the car 2 ascends, the arm 55 rotates clockwise. The rotation of arm 55 is transmitted to gear 54, gear 53b, gear 53a, gear 52b, gear 52a, and gear 51 in this order, and rotating body 26 rotates counterclockwise together with gear 51. When the rotating body 26 rotates counterclockwise, the vibration suppressing rope 10 is loosened from the main rope 4. Therefore, when the car 2 ascends, the vibration suppressing rope 10 is loosened from the main rope 4.
As described above, in the elevator main rope vibration damping device according to embodiment 4, the cams 28 and 29 are provided in the hoistway 1, and when the car 2 descends or ascends, the rotating body 26 rotates counterclockwise or clockwise as the arm 55 is guided by the cams 28 and 29. This eliminates the need for another power for rotating the rotary body 26. Further, the position at which the rotary 26 is rotated does not need to be electrically controlled.
Fig. 14 is a front view of an elevator including a device that is a modification of the elevator main rope vibration damping device described in embodiment 4. As shown in fig. 14, the rope fixing member 11 may be located on the same side as the vibration stopping weight 42 in the hoistway 1.
Description of the reference symbols
1: a hoistway; 1 a: a top of the hoistway; 1 b: a bottom of the hoistway; 2: a car (lifting body); 3: a counterweight; 4: a main rope; 10: vibration-damping ropes (main rope vibration-damping ropes); 20: a winding tool; 21. 23, 24, 26: a rotating body; 22: a reel; 25: a pulley section; 28. 29: a cam; 30: an auxiliary rope; 40: a tension applying section; 55: an arm.
Claims (5)
1. A main rope vibration-damping device for an elevator, which is used for an elevator having a main rope, one end of which is fixed to a lifting body provided in a hoistway to be lifted freely, and the other end of which is fixed to a counterweight,
the main rope vibration-damping device for an elevator comprises:
a main rope vibration-damping rope having one end fixed to a top of the hoistway and the other end; and
and a winding tool that winds the main rope vibration damping rope around the main rope between the one end of the main rope vibration damping rope and the other end of the main rope vibration damping rope.
2. The main rope vibration suppressing device for an elevator according to claim 1,
the winding tool is attached to the lifting body, and includes: a rotating body and a drum that rotate around the main rope; and a rotating body driving part which rotates the rotating body and the winding drum in a clockwise direction and a counterclockwise direction,
the other end of the main rope vibration-stopping rope is fixed on the winding drum,
when the vertically movable body is lowered, the drum is rotated in one of the clockwise direction and the counterclockwise direction by the rotating body driving unit, and the drum winds the main rope vibration-damping rope around the main rope,
when the vertically movable body is raised, the rotating body driving unit rotates the drum in the other one of the clockwise direction and the counterclockwise direction, and the drum winds the main rope vibration suppressing rope from the main rope.
3. The main rope vibration suppressing device for an elevator according to claim 2,
an auxiliary rope is also arranged in the well,
when the lifting body descends, the drum winds the main rope vibration damping rope around the auxiliary rope.
4. The main rope vibration suppressing device for an elevator according to claim 1,
the winding tool is attached to the lifting body, and includes: a rotating body that rotates around the main rope and has a pulley portion; and a rotating body driving part which rotates the rotating body in a clockwise direction and a counterclockwise direction,
the other end of the main rope vibration-damping rope is fixed to a tension applying portion that applies tension to the main rope vibration-damping rope via the sheave portion,
when the vertically movable body is lowered, the rotating body driving unit rotates the rotating body in one of the clockwise direction and the counterclockwise direction, and the rotating body winds the main rope vibration-damping rope around the main rope,
when the vertically movable body is raised, the rotating body driving unit rotates the rotating body in the other one of the clockwise direction and the counterclockwise direction, and the rotating body releases the main rope vibration damping rope from the main rope.
5. The main rope vibration suppressing device for an elevator according to claim 4,
the rotating body driving part is provided with an arm,
a cam is disposed within the well and,
when the lifting body descends or ascends, the arm is guided by the cam, and the rotating body rotates in the clockwise direction or the counterclockwise direction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/021785 WO2018229860A1 (en) | 2017-06-13 | 2017-06-13 | Device for preventing shaking of main rope for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110709343A CN110709343A (en) | 2020-01-17 |
| CN110709343B true CN110709343B (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780091676.8A Active CN110709343B (en) | 2017-06-13 | 2017-06-13 | Main rope vibration-stopping device for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6710332B2 (en) |
| CN (1) | CN110709343B (en) |
| WO (1) | WO2018229860A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6819749B1 (en) * | 2019-09-13 | 2021-01-27 | フジテック株式会社 | Main rope runout suppression device |
| JP6988946B2 (en) * | 2020-04-24 | 2022-01-05 | フジテック株式会社 | Main rope runout suppression device |
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| JP2004224475A (en) * | 2003-01-21 | 2004-08-12 | Mitsubishi Electric Corp | Balance cable swing prevention device of elevator |
| CN104058310A (en) * | 2014-06-01 | 2014-09-24 | 池州市华鑫机械设备有限公司 | Elevator with safe inhaul cable device |
| CN104276481A (en) * | 2013-07-02 | 2015-01-14 | 东芝电梯株式会社 | Elevator cable swing suppression system |
| CN204624892U (en) * | 2014-09-08 | 2015-09-09 | 东芝电梯株式会社 | Lift appliance |
| JP2015199586A (en) * | 2014-04-09 | 2015-11-12 | フジテック株式会社 | Dynamic vibration absorber for elevator |
| CN105621197A (en) * | 2016-03-28 | 2016-06-01 | 东南电梯股份有限公司 | Anti-shaking guide device and method for marine elevator travelling cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015315Y1 (en) * | 1970-06-30 | 1975-05-13 | ||
| JPH0223186A (en) * | 1988-07-12 | 1990-01-25 | Hitachi Elevator Eng & Service Co Ltd | Damping device for tail code of elevator |
| CN2268696Y (en) * | 1994-09-16 | 1997-11-26 | 山东莱州市建筑机械厂 | Four rope synchronous lifting unit of builder's hoist |
| JPH09278317A (en) * | 1996-04-10 | 1997-10-28 | Otis Elevator Co | Elevator |
| US5947232A (en) * | 1997-12-23 | 1999-09-07 | Otis Elevator Company | Swing arm to prevent sway of elevator ropes |
| CN2392749Y (en) * | 1999-12-14 | 2000-08-23 | 青岛城阳宏源建筑机械有限公司 | Device for stopping and berthing at will lifter basket of headgear and gallows frame |
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2017
- 2017-06-13 WO PCT/JP2017/021785 patent/WO2018229860A1/en active Application Filing
- 2017-06-13 JP JP2019524590A patent/JP6710332B2/en active Active
- 2017-06-13 CN CN201780091676.8A patent/CN110709343B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004224475A (en) * | 2003-01-21 | 2004-08-12 | Mitsubishi Electric Corp | Balance cable swing prevention device of elevator |
| CN104276481A (en) * | 2013-07-02 | 2015-01-14 | 东芝电梯株式会社 | Elevator cable swing suppression system |
| JP2015199586A (en) * | 2014-04-09 | 2015-11-12 | フジテック株式会社 | Dynamic vibration absorber for elevator |
| CN104058310A (en) * | 2014-06-01 | 2014-09-24 | 池州市华鑫机械设备有限公司 | Elevator with safe inhaul cable device |
| CN204624892U (en) * | 2014-09-08 | 2015-09-09 | 东芝电梯株式会社 | Lift appliance |
| CN105621197A (en) * | 2016-03-28 | 2016-06-01 | 东南电梯股份有限公司 | Anti-shaking guide device and method for marine elevator travelling cable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018229860A1 (en) | 2018-12-20 |
| JPWO2018229860A1 (en) | 2019-11-07 |
| JP6710332B2 (en) | 2020-06-17 |
| CN110709343A (en) | 2020-01-17 |
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