CN109250603B - Elevator rope drop prevention aid and elevator rope replacement method - Google Patents
Elevator rope drop prevention aid and elevator rope replacement method Download PDFInfo
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- CN109250603B CN109250603B CN201810563977.2A CN201810563977A CN109250603B CN 109250603 B CN109250603 B CN 109250603B CN 201810563977 A CN201810563977 A CN 201810563977A CN 109250603 B CN109250603 B CN 109250603B
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- cover
- elevator
- support member
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- 230000002265 prevention Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
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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
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides an elevator rope drop prevention auxiliary tool and an elevator rope replacement method, which can prevent a rope from dropping from a rope pulley when the rope is replaced. The rope falling prevention assistant for an elevator of the invention comprises: a 1 st support member (16) attached to a front cover (10) of the sheave; a 2 nd support member (17) attached to a rear cover (11) of the sheave; and a pressing member (20) having one end supported by the 1 st supporting member (16) and the other end supported by the 2 nd supporting member (17), wherein the pressing member (20) is fixed in a state of being in contact with a rope (3) wound around the sheave.
Description
Technical Field
The invention relates to an elevator rope drop prevention aid and an elevator rope replacement method.
Background
A rope elevator has a rope wound around a sheave. As a technique for replacing a rope of an elevator, for example, there is a technique described in patent document 1 below.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 6-255938
Disclosure of Invention
Problems to be solved by the invention
Patent document 1 discloses a method of replacing the ropes of an elevator of the type having a machine room. In contrast, when replacing the ropes of an elevator of the machine room-less type, a different method is adopted. When a rope of an elevator without a machine room is replaced, it takes time to perform the trimming if the rope falls off from a sheave in a hoistway.
The present invention has been made to solve the above problems. The purpose of the present invention is to provide an elevator rope drop prevention aid and an elevator rope replacement method that can prevent a rope from dropping from a sheave when the rope is replaced.
Means for solving the problems
The rope falling prevention assistant for an elevator of the invention comprises: a 1 st support member attached to a front cover of the sheave; a 2 nd support member attached to a rear cover of the sheave; and a pressing member, one end of which is supported by the 1 st supporting member and the other end of which is supported by the 2 nd supporting member, the pressing member being fixed in a state of being in contact with a rope wound around the sheave.
The rope replacing method of the elevator comprises the following steps: an auxiliary tool setting step of detaching the anti-drop member from a cover of a rope pulley provided in the hoistway, and installing the rope drop-off prevention auxiliary tool; a rope moving step of pulling the old rope to the other end side in a state where the new rope is connected to one end of the old rope wound around the sheave, and replacing the old rope with the new rope; and an auxiliary tool removing process for removing the rope drop-off preventing auxiliary tool from the cover of the rope wheel and installing the drop-off preventing part.
Effects of the invention
According to the present invention, the pressing member of the rope drop prevention aid is fixed in a state of being in contact with the rope wound around the sheave. Therefore, the rope can be prevented from falling off the sheave when the rope is replaced.
Drawings
Fig. 1 is a schematic diagram showing an example of the structure of an elevator.
Fig. 2 is a front view of the counterweight suspending wheels.
Fig. 3 is a side view of the counterweight suspending wheels.
Fig. 4 is a top view of the counterweight suspending wheels.
Fig. 5 is a view showing a state in which the cord dropout-preventing assistant according to embodiment 1 is disassembled.
Fig. 6 is a view showing a state in which the cord dropout-preventing assistant according to embodiment 1 is assembled.
Fig. 7 is a front view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached.
Fig. 8 is a side view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached.
Fig. 9 is a plan view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached.
Description of the reference symbols
1: an elevator, 2: traction machine, 3: rope, 4: car, 5: counterweight, 6: car hanging wheel, 7: counterweight hanging wheel, 8: diverting pulley, 9: sheave cover, 10: front side cover, 11: rear side cover, 12: rotation axis, 13: through hole, 14: through hole, 16: 1 st support member, 16 a: through hole, 16 b: through hole, 17: no. 2 support member, 17 a: through hole, 18: rod-like member, 19: cylindrical member, 20: a pressing member.
Detailed Description
A mode for carrying out the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Duplicate descriptions are appropriately simplified or omitted.
Embodiment 1
Fig. 1 is a schematic diagram showing an example of the structure of an elevator. Fig. 1 shows by way of example a structure in the hoistway of a roped elevator of the machine room-less type.
As shown in fig. 1, an elevator 1 has a hoisting machine 2, ropes 3, a car 4, and a counterweight 5. The elevator 1 includes a plurality of sheaves provided in a hoistway. The sheave includes, for example, a drive sheave of the hoisting machine 2, a car hoisting wheel 6, a counterweight hoisting wheel 7, and a diverting sheave 8. The ropes 3 are wound around, for example, a drive sheave, a car sheave 6, a counterweight sheave 7, and a return sheave 8 of the hoisting machine 2. The end of the rope 3 is supported by a beam, not shown, in the hoistway, for example. The car 4 is suspended in the hoistway by the ropes 3 via car sheaves 6. The counterweight 5 is suspended in the hoistway by the rope 3 via a counterweight sheave 7. The car 4 and the counterweight 5 are lifted and lowered by driving the hoisting machine 2. The hoisting machine 2 is controlled by a control panel not shown.
Fig. 2 is a front view of the counterweight suspending wheels. Fig. 3 is a side view of the counterweight suspending wheels. Fig. 4 is a top view of the counterweight suspending wheels. Fig. 2 to 4 show the state of the counterweight suspending sheave 7 when the elevator 1 is in normal operation. Hereinafter, description will be given with reference to fig. 2 to 4.
The rope 3 is wound around the lower part of the counterweight suspending wheel 7. The rope 3 is provided with a plurality of pieces, for example. The ropes 3 are wound along the rope grooves of the counterweight suspending wheels 7. A sheave cover 9 is provided around the counterweight suspending sheave 7. The sheave cover 9 has, for example, a front side cover 10 and a rear side cover 11. The front side cover 10 is located in front of the counterweight suspending wheels 7. The rear side cover 11 is located behind the counterweight suspending wheels 7. The rear cover 11 is formed in the same shape as the front cover 10, for example. The rotating shaft 12 of the counterweight suspending sheave 7 is fixed to the sheave cover 9 so as to connect the front side cover 10 and the rear side cover 11, for example.
The front cover 10 has a through-hole 13 and a through-hole 14. The through- holes 13 and 14 penetrate the front cover 10 along the front and rear. The through- holes 13 and 14 are long holes formed in a long length, for example. The through- holes 13 and 14 are formed at the same height as the rotary shaft 12 in the vertical direction, for example. The through-hole 14 is formed at a position bilaterally symmetrical to the through-hole 13 about the rotation axis 12 when viewed from the front, for example.
The through-hole 13 is formed at a position corresponding to the vicinity of the right end of the counterweight suspending wheel 7 in front view, for example. The through-hole 13 is not formed, for example, at a position on the left side of the right end of the heavy hoist wheel 7 in front view.
The through-hole 14 is formed at a position corresponding to the vicinity of the left end of the counterweight suspending wheel 7 in front view, for example. The through-hole 14 is not formed at a position corresponding to the right side of the left end of the heavy hoist wheel 7 in front view, for example.
Though not shown, the through-hole 13 and the through-hole 14 are also formed in the rear cover 11. The through-hole 13 of the rear side cover 11 faces the through-hole 13 of the front side cover 10 in the front-rear direction, for example. The through-hole 14 of the rear side cover 11 faces the through-hole 14 of the front side cover 10 in the front-rear direction, for example.
A slip-off preventing member 15 is attached to the sheave cover 9. For example, 2 retainers 15 are attached to the sheave cover 9 of the counterweight suspending sheave 7. The release preventing member 15 is, for example, a plate-like member having one piece and the other piece continued at right angles. The anti-slip member 15 is, for example, L-shaped when viewed in the vertical direction. One piece of the escape preventer 15 is fixed to the front surface of the front side cover 10 by, for example, bolts or the like.
One piece of one escape preventer 15 is fixed at the same height as the rotary shaft 12, for example, in a state where the other piece passes through the through-hole 13. The other piece of the retaining member 15 is located in a space between the front cover 10 and the rear cover 11 in a state of overlapping all the ropes 3 when viewed from the left-right direction, for example. The other piece of the retaining member 15 is located in a space between the front cover 10 and the rear cover 11 in a direction along the rotation axis direction of the counterweight suspending wheel 7, for example. The other piece of the retaining member 15 is not in contact with the cord 3 and the rear cover 11, for example.
One piece of the other release preventing member 15 is fixed at the same height as the rotary shaft 12, for example, in a state where the other piece passes through the through-hole 14. The other piece of the retaining member 15 is located in a space between the front cover 10 and the rear cover 11 in a state of overlapping all the ropes 3 when viewed from the left-right direction, for example. The other piece of the retaining member 15 is located in a space between the front cover 10 and the rear cover 11 in a direction along the rotation axis direction of the counterweight suspending wheel 7, for example. The other piece of the retaining member 15 is not in contact with the cord 3 and the rear cover 11, for example.
The release preventing member 15 is attachable to and detachable from the sheave cover 9. The separation preventing member 15 may be attached to the sheave cover 9 by fixing one piece to the rear side cover 11, for example.
Fig. 5 is a view showing a state in which the cord dropout-preventing assistant according to embodiment 1 is disassembled. Fig. 5 shows a state in which 2 ropes are detached from the anti-backup apparatus. Fig. 6 is a view showing a state in which the cord dropout-preventing assistant according to embodiment 1 is assembled. Fig. 6 shows a state where 2 cord drop-off prevention aids are assembled. The following description will be made with reference to fig. 5 and 6.
The rope falling prevention auxiliary tool for the elevator comprises a 1 st supporting member 16, a 2 nd supporting member 17, a rod-shaped member 18 and a cylindrical member 19. The 1 st support member 16 and the 2 nd support member 17 are formed in a plate shape, for example. The rod member 18 has a circular cross section, for example. As the rod member 18, for example, a full-thread bolt or the like is used.
The cylindrical member 19 is formed in a cylindrical shape having an inner diameter larger than the cross-sectional diameter of the rod member 18, for example. The length of the cylindrical member 19 is smaller than the length of the rod-like member 18. The length of the tubular member 19 is smaller than the distance between the front cover 10 and the rear cover 11.
The tubular member 19 is formed of a material softer than the rope 3, for example. The cylindrical member 19 is less strong against scratches than, for example, stranded wires forming the rope 3. The strands are formed by stranding steel wires, for example. The tubular member 19 is formed of, for example, a metal having a lower hardness than the stranded wire. The cylindrical member 19 is formed of, for example, aluminum.
The 1 st support member 16 is formed with a through-hole 16a and a through-hole 16 b. The through-hole 16a is, for example, a circular hole. The through-hole 16b is, for example, a long hole formed long in the longitudinal direction of the 1 st support member 16. For example, a plurality of through holes 16b are formed. The number of the through holes 16b is, for example, the same as the number of bolts or the like for fixing the stopper 15 to the sheave cover 9.
A through-hole 17a is formed in the 2 nd support member 17. The through-hole 17a is, for example, a circular hole.
The rod-like member 18 is coupled to the 1 st support member 16 and the 2 nd support member 17 in a state of being inserted into the tubular member 19. The rod-like member 18 and the cylindrical member 19 in a state of being inserted into the cylindrical member 19 are collectively referred to as "pressing member 20". One end of the rod-like member 18 passes through the through-hole 16a of the first support member 16. A nut or the like is attached to one end of the rod member 18, for example, on the front side of the 1 st support member 16. The other end of the rod-like member 18 passes through the through-hole 17a of the second support member 17. A nut or the like is attached to the other end of the rod-like member 18, for example, on the deeper side than the 2 nd supporting member 17.
Rope fall prevention aids are used e.g. in rope replacement of roped elevators of machine-roomless type. The rope slip-off preventing aid is attached to, for example, the sheave cover 9 of the counterweight suspending wheel 7 from which the slip-off preventing member 15 is removed.
Fig. 7 is a front view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached. Fig. 8 is a side view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached. Fig. 9 is a plan view of the counterweight suspending wheel in a state where the rope dropout-preventing assistant of embodiment 1 is attached.
Hereinafter, the cord dropout-preventing assistant mounted on the right side when viewed from the front among the 2 cord dropout-preventing assistants will be described with reference to fig. 7 to 9. In the following description, the through-hole 13 is replaced with the through-hole 14, and the cord dropout-preventing accessory attached to the left side when viewed from the front will be described.
The 1 st support member 16 is attached to the front cover 10, for example, in a state where the longitudinal direction thereof is along the left-right direction of the counterweight suspending wheels 7. The 1 st support member 16 is fixed to the front surface of the front cover 10 by bolts or the like for fixing the attachment 15 through, for example, through holes 16 b. The mounting position of the 1 st support member 16 is adjusted so that the through-hole 16a overlaps the through-hole 13. One end of the rod-like member 18 passes through the through-hole 16a and the through-hole 13 of the front cover 10. For example, by tightening a nut attached to one end of the rod member 18, the 1 st supporting member 16 is pressed against the front surface of the front cover 10.
The 2 nd support member 17 is attached to the rear side cover 11, for example, in a state where the longitudinal direction thereof is along the left-right direction of the counterweight suspending wheel 7. The other end of the rod member 18 inserted into the cylindrical member 19 passes through the through-hole 13 and the through-hole 17a of the rear cover 11. For example, by tightening a nut attached to the other end of the rod member 18, the 2 nd supporting member 17 is pressed against the rear surface of the rear cover 11.
The rod-like member 18 is supported by the 1 st support member 16 and the 2 nd support member 17 in an orientation along the rotation axis direction of the counterweight suspending sheave 7. The rod-like member 18 has a cross-sectional diameter smaller than the width of the through-hole 13. The through-hole 16b of the 1 st support member 16 is formed to be laterally long. That is, the position of the 1 st supporting member 16 in the left-right direction with respect to the front cover 10 can be changed. Therefore, the position of the rod-like member 18 in the left-right direction in the state of being inserted through the through hole 13 of the sheave cover 9 can be finely adjusted. The position of the rod-like member 18 in the left-right direction is adjusted so that the cylindrical member 19 contacts all the ropes 3 at the same time. When the rope 3 moves in the vertical direction, the cylindrical member 19 can rotate about the rod-like member 18. Further, for example, if a washer or the like is attached between the end of the cylindrical member 19 and the sheave cover 9, the cylindrical member 19 is easily rotated.
As shown in fig. 7 to 9, the rope replacement work of the elevator is performed in a state where the rope drop prevention auxiliary is attached to the counterweight suspending wheel 7. When the rope replacement work is performed, the car 4 and the counterweight 5 are held by a device, an auxiliary tool, or the like, not shown, so that no load is applied to the rope. In this state, when the old rope having one end connected to the new rope is pulled toward the other end, the old rope and the new rope move along the rope grooves of the sheaves. Thereby, the old rope is replaced with a new rope. Thereafter, the rope fall-off prevention auxiliary is detached from the counterweight suspending wheel 7, and the fall-off prevention member 15 is reattached.
In embodiment 1, the rope-fall prevention aid for an elevator is, for example, an aid used at the time of rope replacement of a machine-roomless rope-type elevator. The 1 st support member 16 is attached to the front cover 10 of the sheave, for example. The 2 nd support member 17 is attached to the rear cover 11 of the sheave, for example. One end of the pressing member 20 is supported by the 1 st supporting member 16, and the other end is supported by the 2 nd supporting member 17, and the pressing member 20 is fixed in a state of being in contact with the plurality of ropes 3 wound around the sheave in a direction along the rotation axis direction of the sheave. Therefore, the rope can be prevented from falling off the sheave when the rope is replaced. As a result, since the dressing operation for the rope slip-off does not occur, the efficiency of the rope replacement operation can be improved. In addition, the safety of the operator can be improved.
In embodiment 1, the 1 st support member 16 is formed with, for example, a through-hole 16a as a circular hole and a through-hole 16b as a long hole in the longitudinal direction. The pressing member 20 is supported by the 1 st support member 16 via, for example, a circular hole. The 1 st support member 16 is fixed to the front cover 10 of the sheave via a long hole in a state where the longitudinal direction is along the left-right direction of the sheave, for example. Therefore, the position of the pressing member can be finely adjusted so as to contact the cord.
In embodiment 1, the pressing member 20 includes a rod member 18 and a cylindrical member 19. The rod-like member 18 has a circular cross section, for example, and is supported by the 1 st support member 16 and the 2 nd support member 17. The cylindrical member 19 is formed in a cylindrical shape having an inner diameter larger than the thickness of the rod-like member 18, for example, and the rod-like member 18 passes through the inside of the cylindrical member 19, and the cylindrical member 19 simultaneously contacts the plurality of ropes 3 between the front cover 10 and the rear cover 11 of the sheave. That is, the cylindrical member 19 can rotate with the movement of the rope 3. Therefore, the cord can be prevented from being damaged by friction with the pressing member.
In embodiment 1, the tubular member 19 is formed of a material softer than the rope 3, for example. Therefore, the cord can be prevented from being damaged by friction with the pressing member.
In embodiment 1, a plurality of grooves extending in the rotational direction around the axis of the tubular member 19 may be formed in the outer peripheral surface of the tubular member 19 in the range in which the plurality of ropes 3 contact each other. These grooves may be formed, for example, at positions corresponding to the respective ropes 3. In this case, friction between the pressing member and the rope can be further reduced.
In embodiment 1, the method for replacing a rope of an elevator includes, for example, an accessory installing step, a rope moving step, and an accessory removing step. The accessory setting step is a step of: the anti-slip member 15 is detached from the cover of the sheave provided in the hoistway of the machine room-less rope-type elevator, and the rope slip prevention aid is attached in a state of being in contact with the old rope wound around the sheave. The rope moving step is a step of: the old rope wound around the sheave is replaced with a new rope by pulling the old rope to the other end side in a state where the new rope is connected to one end of the old rope. The accessory removing step is a step of: the rope drop-off preventing auxiliary tool is detached from the cover of the rope wheel, and the drop-off preventing member 15 is installed. Therefore, the rope can be prevented from falling off the sheave when the rope is replaced. As a result, since the dressing operation for the rope slip-off does not occur, the efficiency of the rope replacement operation can be improved. In addition, the safety of the operator can be improved.
The rope slip-off preventing aid of embodiment 1 can be used for a sheave other than the counterweight suspending wheel 7. However, the effect is particularly prominent in the case of the counterweight suspending wheel 7 in which the rope is likely to fall off when the rope is replaced.
Claims (5)
1. An elevator rope drop prevention assistant device, comprising:
a 1 st support member attached to a front cover of the sheave;
a 2 nd support member attached to a rear cover of the sheave; and
a pressing member having a rod-like member and a cylindrical member formed in a cylindrical shape having an inner diameter larger than a thickness of the rod-like member,
the rod-shaped member is inserted into the cylindrical member, and is fixed in a state in which one end portion thereof is supported by the 1 st support member and the other end portion thereof is supported by the 2 nd support member in a state in which the cylindrical member is in contact with a rope wound around the sheave between a front side cover and a rear side cover and is rotatable.
2. The rope falling prevention aid of an elevator according to claim 1,
the 1 st support member is formed with a circular hole and a long hole along the length direction,
the rod-like member is supported by the 1 st support member via the circular hole,
the 1 st support member is fixed to a front cover of the sheave via the elongated hole in a state where a longitudinal direction thereof is along a left-right direction of the sheave.
3. The rope falling prevention aid of an elevator according to claim 1 or 2, wherein,
the cylindrical member is formed of a material softer than the rope.
4. The rope falling prevention aid of an elevator according to claim 1 or 2, wherein,
a groove is formed in the outer peripheral surface of the tubular member in the rotational direction about the axis of the tubular member.
5. A rope replacing method of an elevator, the rope replacing method of an elevator comprising:
an accessory installation step of detaching a slip-off preventing member from a cover of a sheave installed in a hoistway and installing the rope slip-off preventing accessory according to claim 1 or 2;
a rope moving step of pulling the old rope to the other end side in a state where the new rope is connected to one end of the old rope wound around the sheave, and replacing the old rope with the new rope; and
and an auxiliary tool removing step of removing the rope drop prevention auxiliary tool from the cover of the rope wheel and installing the drop prevention tool.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-136515 | 2017-07-12 | ||
| JP2017136515A JP6520989B2 (en) | 2017-07-12 | 2017-07-12 | Rope detachment prevention jig for elevators and rope replacement method for elevators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109250603A CN109250603A (en) | 2019-01-22 |
| CN109250603B true CN109250603B (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810563977.2A Active CN109250603B (en) | 2017-07-12 | 2018-06-04 | Elevator rope drop prevention aid and elevator rope replacement method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6520989B2 (en) |
| CN (1) | CN109250603B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210107071A (en) | 2019-02-05 | 2021-08-31 | 미쯔비시 케미컬 주식회사 | light guide plate for image display |
| JP7180541B2 (en) * | 2019-05-31 | 2022-11-30 | 株式会社明電舎 | Rope detachment prevention device for elevator hoist |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038621Y2 (en) * | 1980-11-12 | 1985-11-18 | 株式会社日立製作所 | Tension pulley device for elevator balancing rope |
| JPS62144895U (en) * | 1986-03-06 | 1987-09-12 | ||
| CA2103614A1 (en) * | 1992-09-09 | 1994-03-10 | Hartmut Waldchen | Cable lubricating equipment |
| ITTS20000006A1 (en) * | 2000-08-22 | 2002-02-22 | Security Control Srl Controlli | MAGNETO-INDUCTIVE DEVICE FOR THE CONTROL OF MULTIPLE STEEL ROPES |
| JP2004189441A (en) * | 2002-12-12 | 2004-07-08 | Mitsubishi Electric Building Techno Service Co Ltd | Main cable detachment preventer of sheave for elevator |
| JP2005178972A (en) * | 2003-12-18 | 2005-07-07 | Hitachi Building Systems Co Ltd | Elevator main rope changer |
| FI118645B (en) * | 2004-04-29 | 2008-01-31 | Kone Corp | Method and apparatus for changing the carrier line to a drive pulley elevator |
| JP4887744B2 (en) * | 2005-11-09 | 2012-02-29 | 三菱電機株式会社 | Main rope locking device for elevator and its installation / maintenance inspection method |
| FI119320B (en) * | 2006-04-18 | 2008-10-15 | Kone Corp | Line feed device for mounting, replacing and / or retracting the carrier line in an elevator |
| JP2013121855A (en) * | 2011-12-09 | 2013-06-20 | Toshiba Elevator Co Ltd | Device for preventing intrusion of foreign matter for elevator |
| JP5966996B2 (en) * | 2013-03-27 | 2016-08-10 | 三菱電機ビルテクノサービス株式会社 | Auxiliary tool for main rope replacement |
-
2017
- 2017-07-12 JP JP2017136515A patent/JP6520989B2/en active Active
-
2018
- 2018-06-04 CN CN201810563977.2A patent/CN109250603B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6520989B2 (en) | 2019-05-29 |
| JP2019018943A (en) | 2019-02-07 |
| CN109250603A (en) | 2019-01-22 |
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