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WO2002064480A1 - Cable principal d'ascenseur - Google Patents

Cable principal d'ascenseur Download PDF

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Publication number
WO2002064480A1
WO2002064480A1 PCT/JP2001/001130 JP0101130W WO02064480A1 WO 2002064480 A1 WO2002064480 A1 WO 2002064480A1 JP 0101130 W JP0101130 W JP 0101130W WO 02064480 A1 WO02064480 A1 WO 02064480A1
Authority
WO
WIPO (PCT)
Prior art keywords
strand
outer layer
main rope
strands
inner layer
Prior art date
Application number
PCT/JP2001/001130
Other languages
English (en)
Japanese (ja)
Inventor
Takenobu Honda
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to JP2002564419A priority Critical patent/JP5398944B2/ja
Priority to PCT/JP2001/001130 priority patent/WO2002064480A1/fr
Priority to EP01904515A priority patent/EP1371597B1/fr
Priority to CNB018081193A priority patent/CN1183026C/zh
Publication of WO2002064480A1 publication Critical patent/WO2002064480A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
    • D07B1/142—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for ropes or rope components built-up from fibrous or filamentary material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2071—Spacers
    • D07B2201/2074—Spacers in radial direction
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2075—Fillers
    • D07B2201/2076—Fillers having a lubricant function
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2046—Polyamides, e.g. nylons
    • D07B2205/205—Aramides
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the present invention relates to a main rope of an elevator made of a synthetic fiber rope for suspending a car in a hoistway.
  • FIG. 5 is a perspective view showing a structure of a main line of a conventional elevator shown in, for example, Japanese Patent Application Laid-Open No. 7-267533.
  • an inner layer portion 24 having a plurality of inner layer strands 22 and a filling strand 23 disposed in a gap between the inner layer strands 22 is arranged around a core wire 21.
  • Each inner layer strand 22 is composed of a plurality of strands of aramide fibers twisted with each other and an impregnating material such as polyurethane.
  • the filling strand 23 is made of, for example, polyamide.
  • the outer layer portion 26 having the plurality of outer layer strands 25 is arranged so as to cover the outer periphery of the inner layer portion 24.
  • Each outer strand 25 is, like the inner strand 22, composed of a plurality of strands of aramide fiber twisted with each other and an impregnating material such as polyurethane.
  • An inner layer coating (friction reducing coating) 27 is provided.
  • an outer layer coating (protective coating) 28 is arranged on the outer periphery of the outer layer section 26.
  • the tensile strength of the inner layer 24 and the tensile strength of the outer layer 26 Since the strands of the outer layer strand 25 are damaged by abrasion and the tensile strength of the outer layer 26 is significantly reduced, the load is supported only by the inner layer 24. Only half the tensile strength of the whole is ensured.
  • Japanese Patent Application Laid-Open No. Hei 8-261972 discloses that a conductive wire made of carbon fiber is twisted around a strand, the conductive wire is energized, and the energized state is monitored. It shows how to detect breaks and detect strand damage.
  • the present invention has been made to solve the above-described problems, and can secure sufficient residual strength when some of the strands have reached the end of their life, and can further stably damage the strands.
  • the purpose is to obtain a main rope that can be detected and detected over a long period of time.
  • the main rope of the elevator according to the present invention is for suspending a car in a hoistway, and has an inner layer having a plurality of inner strands in which a plurality of strands made of synthetic resin fibers are twisted. And a plurality of outer strands in which a plurality of strands made of synthetic resin fibers are twisted, and an outer layer portion arranged to cover the outer periphery of the inner layer portion, wherein the outer layer portion has a tensile strength of the inner layer. It is set lower than the tensile strength of the part.
  • FIG. 1 is a cross-sectional view of a main rope of an
  • Fig. 2 is a side view showing the internal structure of the main rope in Fig. 1,
  • FIG. 3 is a cross-sectional view of a main rope of an elevator according to Embodiment 2 of the present invention.
  • FIG. 4 is a sectional view of a main cable of an elevator according to Embodiment 3 of the present invention.
  • FIG. 5 is a perspective view showing an example of the structure of a main rope of a conventional elevator. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a cross-sectional view of a main rope of an elevator according to Embodiment 1 of the present invention
  • FIG. 2 is a side view showing an internal structure of the main rope of FIG.
  • the inner layer portion 1 has a plurality of inner strands 2 twisted with each other, and a filling strand 3 arranged in a gap between these inner strands 2 and twisted.
  • Each inner strand 2 is composed of a plurality of strands of aramide fiber twisted with each other and an impregnating material such as polyurethane.
  • the filling strand 3 is made of, for example, polyamide.
  • the strength of the filled strand 3 is not added to the tensile strength of the inner layer 1 in design.
  • the outer layer part 4 has a plurality of outer layer strands 5 and is twisted and arranged so as to cover the outer periphery of the inner layer part 1.
  • Each of the outer-layer strands 5, like the inner-layer strand 2, is composed of a plurality of strands of aramid fiber twisted with each other and an impregnating material such as polyurethane.
  • an inner layer coating for avoiding wear of the strands 2 and 5 due to friction between the strands 2 and 5 in a sheave (not shown) such as a drive sheep. 6) are arranged.
  • An outer layer coating (protective coating) 7 is arranged on the outer peripheral portion of the outer layer section 4.
  • the inner layer 1 and the outer layer 4 are separated by an inner layer coating 6.
  • the twist direction of the outer layer strand 5 is opposite to the twist direction of the inner layer strand 2, whereby the inner layer portion 1 and the outer layer portion 4 are also separated.
  • the tensile strength of the outer layer 4 is set lower than the tensile strength of the inner layer 1.c Specifically, the inner layer 1 has a tensile strength of 60% or more of the tensile strength of the entire main rope. have. Therefore, the tensile strength of the outer layer portion 4 is less than 40% of the tensile strength of the entire main rope.
  • Each of the conductive wires 8 for detecting the damage of the strand 5 is twisted.
  • the conductive wire 8 for example, a wire obtained by bundling conductive ribbon fibers is used.
  • the conductive wires 8 are each twisted with at least a pair of outer layer strands 5 adjacent to each other.
  • the twist pitches of the conductive wires 8 are different from each other.
  • the twist pitch of the conductive wire 8 is set to a pitch smaller than twice the thickness of the conductive wire 8. .
  • the twist pitch of the conductive wire 8 is less than 4 mm.
  • the outer strand 4 has a shorter life than the inner layer 1 because the strands are mainly damaged by wear in the outer strand 5, but the strength of the outer layer 4 is significantly reduced. However, since the inner layer 1 having a higher tensile strength than the outer layer 4 remains, a sufficient residual strength can be secured.
  • the tensile strength of the main rope is designed with a safety factor of 10 times.
  • a safety device such as an emergency stop device operates, a load approximately 2 to 6 times the load applied during normal operation acts on the main rope.
  • the strength of the outer layer 4 is reduced due to the service life and a load 6 times is applied, it is desirable that the inner layer 1 alone can support the load. Therefore, it is considered that if the inner layer 1 has a tensile strength of 60% or more of the tensile strength of the entire main rope, the residual strength is sufficient.
  • the outer layer strand 5 since the twist direction of the outer layer strand 5 is opposite to the twist direction of the inner layer strand 2, the outer layer strand 5 intersects the inner layer strand 2. As a result, wire damage due to abrasion is more likely to occur on the inner layer 1 side of the outer strand 5, and the life of the outer strand 5 governs the life of the main rope as a whole. Therefore, it is possible to prevent an unexpected accident due to damage of the main rope from an unplanned part. Further, since the conductive wires 8 are arranged on the outer strands 5 that govern the life of the main rope, damage can be detected more stably, and the life of the main rope can be grasped more accurately. Specifically, when the conductive wire 8 is cut and the power supply is cut off, the operation of the elevator is stopped overnight, and an alarm is issued to inform that the main cable has reached the end of its service life. .
  • the conductive wire 8 since the conductive wire 8 has higher strength than the aramide fiber, the aramide fiber is mainly worn by contact with the aramide fiber, and the strand is broken before the conductive wire 8. I will.
  • the conductive wires 8 since the conductive wires 8 are twisted in the plural pairs of the outer layer strands 5 adjacent to each other, the conductive wires 8 of the adjacent outer layer strands 5 contact each other, The conductive wires 8 are worn by the mutual contact of the wires 8, and damage to the outer layer strands 5 can be detected more stably.
  • the pairs of the outer strands 5 in which the conductive wires 8 are twisted are arranged at least at three or more locations for one main rope in order to stably detect damage to the outer strands 5. is there.
  • the conductive wires 8 of the adjacent outer layer strands 5 are twisted at the same pitch, there is a possibility that the conductive wires 8 do not contact each other.
  • the twist pitches of the conductive wires 8 of the adjacent outer-layer strands 5 are different from each other, the amount of the conductive wires 8 made of expensive carbon fiber is minimized, The conductive wires 8 can be more reliably brought into contact with each other.
  • the twist pitch of the conductive wire 8 is set to be smaller than twice the thickness of the conductive wire 8 on one outer layer strand 5, the amount of the conductive wire 8 used is minimized, The conductive wires 8 can be reliably brought into contact with each other.
  • the twist pitch referred to here is the twist pitch for one outer layer strand 5.
  • the twist pitch for one outer layer strand 5 is the twist pitch for one outer layer strand 5.
  • two conductive wires 8 are twisted on one outer layer strand 5
  • only one of the conductive wires 8 is used. If you look, it will be twisted with a pitch smaller than 4 times the thickness of the conductive wire 8.
  • FIG. 3 is a cross-sectional view of the main rope of the elevator according to the second embodiment of the present invention.
  • an outer layer portion 11 has a plurality of outer layer strands 12 and is arranged so as to cover the outer periphery of the inner layer portion 1.
  • Each outer strand 12, like the inner strand 2, is composed of a plurality of strands of aramide fiber twisted with each other and an impregnating material such as polyurethane.
  • the twist direction of the outer strands 12 is opposite to the twist direction of the inner strands 2.
  • Some outer strands 12 are each twisted with a conductive wire 8.
  • the cross-sectional shape of the outer layer strand 12 is a flat shape extending along the circumferential direction of the outer layer portion 11.
  • the inner layer part 1 and the outer layer part 1 1 are in direct contact, and the inner layer 2 that comes into contact with the outer layer 1 2 including the conductive wire 8 has a contact strength that is equal to or greater than the strength of the strand of the outer layer 1 2.
  • Wires 13 are twisted.
  • a wire having the same material configuration as the conductive wire 8 is used as the contact wire 13.
  • the tensile strength of the outer layer portion 11 is set lower than the tensile strength of the inner layer portion 1.
  • the inner layer portion 1 has a tensile strength of 60% or more of the tensile strength of the entire main rope. Therefore, the tensile strength of the outer layer portion 11 is less than 40% of the tensile strength of the entire main rope.
  • the bow I tension strength per unit area of the outer layer 11 is set lower than that of the inner layer 1. I have.
  • the contact wire 13 is a wire for abrading the conductive wire 8, it is not necessary to pass through the contact wire 13.
  • the contact wire 13 is made of a conductive material
  • damage to the inner strand 2 can also be detected. Also, if the strength of the contact wire 13 is equal to or higher than the strength of the strand, the conductive wire 8 is more effectively worn than the strand. 8 can be worn.
  • the tensile strength per unit area of the outer layer 1 1 is set lower than that of the inner layer 1, when the main rope is overloaded, the outer layer 1 1 The conductor layer 8 is broken, and the break of the outer layer 11 is detected by cutting the conductive wire 8. That is, it is possible to prevent the entire main rope from being broken due to overload.
  • the outer layer 11 may be significantly damaged due to contact with the inner layer 1 during normal operation.
  • the twist direction of the strand of the inner layer strand 2 and the strand direction of the outer strand 12 are parallel to each other. Basically, it is preferable that both the inner strand 2 and the outer strand 12 have the fiber direction approaching parallel to the length direction of the main rope.
  • the cross-sectional shape of the outer layer strand 12 is a flat shape extending along the circumferential direction of the outer layer portion 11, the strength can be secured while keeping the diameter of the main rope small.
  • damage detection sensitivity can be increased, and stress generated by bending can be reduced, so that a main rope with a high mounting density can be provided.
  • the inner layer 1 is impregnated with the lubricating oil, it is possible to prevent the lubricating oil from flowing out of the outer layer 11 and prevent the lowering of the adhesion between the outer strand 12 and the outer coating 7. be able to.
  • the outer strand 12 is manufactured in a circular cross section, when it is wound around the outer periphery of the inner layer portion 1, it is heated and softened, and is deformed in cross section through a die.
  • the cross-sectional shape may be changed by passing through a die after winding around the inner layer portion 1.
  • the c view is a cross-sectional view of the main ropes of Jer base Isseki according to the third embodiment of FIG. 4 is the invention, the inner layer portion 1 5, a plurality of inner Sutoran de which are twisted together 1 6 And a filling strand 3 which is arranged in the gap between these inner-layer strands 16 and twisted.
  • Each inner layer strand 16 is twisted with each other It is composed of a plurality of strands of aramide fiber and an impregnating material such as polyurethane.
  • Outer layer portion 11 is the same as in the second embodiment.
  • the inner layer 15 and the outer layer 11 are in direct contact.
  • the twist direction of the outer layer strands 12 is opposite to the twist direction of the inner layer strands 16.
  • conductive wires 17 extending in parallel with the length direction of the outer layer 11 are arranged.
  • a contact wire 13 having strength equal to or higher than the strength of the conductive wire 17 is twisted around the inner strand 16 that contacts the outer strand 12 including the conductive wire 17.
  • a wire having the same material composition as the conductive wire 17 is used as the contact wire 13.
  • the cross-sectional shape of the inner-layer strand 16 in contact with the outer-layer strand 12 is deformed so that the contact area with the outer-layer strand 12 is larger than that of the circular cross-section.
  • the inner strand 16 is heated and softened when twisted as the inner layer portion 15 and deformed in cross section through a die.
  • all the inner strands 16 may be twisted and then passed through a die to deform the cross-sectional shape.
  • Lubricating oil is applied between the inner layer strands 16 and impregnated.
  • a lubricating oil for example, a silicone-based or paraffin-based synthetic oil is used.
  • a mineral oil-based lubricating oil may be used.
  • the bow I tensile strength of the outer layer portion 11 is set lower than the bow I tensile strength of the inner layer portion 15.
  • the inner layer 15 has a tensile strength of 60% or more of the tensile strength of the entire main rope. Therefore, the tensile strength of the outer layer portion 11 is less than 40% of the tensile strength of the entire main rope.
  • the contact wire 13 can be more reliably brought into contact with the conductive wires 17, and the detection sensitivity for damage to the outer layer strands 12 can be increased. Further, since the cross-sectional shape of the inner strand 16 is deformed, the contact pressure between the inner strand 16 and the outer strand 12 can be reduced. When the inner layer strand has a circular cross section, the outer layer strand 12 comes into contact with only a part of the outer periphery of the inner layer strand and crosses between the inner layer strands, but the deformed inner layer strand 16 is used.
  • the outer layer strands 12 are twisted in contact with the inner layer strands 16 in a larger area, the bending stress generated in the outer layer strands 12 can be reduced, and the life of the outer layer strands 12 can be extended. it can.
  • the slip between the deformed inner strands 16 is smoothed, and the inner layer is subjected to the variable load received by the main rope during overnight operation. Fine movement wear of the strand 16 can be suppressed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne un câble principal d'un ascenseur comprenant une partie de couche interne (1) présentant plusieurs brins de couche interne (2) disposés de manière à recouvrir le périmètre de la partie de couche interne (1), une partie de couche externe (4) présentant plusieurs brins de couche externe (5), les brins de couche interne (4) et les brins de couche externe (5) étant obtenus par torsion de fils élémentaires d'une fibre synthétique et la partie de couche externe (4) possédant une force de traction inférieure à celle de la partie de couche interne (1). La partie de couche interne (1) comprend, de préférence, une force de traction d'au moins 60 % par rapport à l'ensemble de la force de traction du câble principal.
PCT/JP2001/001130 2001-02-16 2001-02-16 Cable principal d'ascenseur WO2002064480A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002564419A JP5398944B2 (ja) 2001-02-16 2001-02-16 エレベータの主索
PCT/JP2001/001130 WO2002064480A1 (fr) 2001-02-16 2001-02-16 Cable principal d'ascenseur
EP01904515A EP1371597B1 (fr) 2001-02-16 2001-02-16 Cable principal d'ascenseur
CNB018081193A CN1183026C (zh) 2001-02-16 2001-02-16 电梯的主索

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/001130 WO2002064480A1 (fr) 2001-02-16 2001-02-16 Cable principal d'ascenseur

Publications (1)

Publication Number Publication Date
WO2002064480A1 true WO2002064480A1 (fr) 2002-08-22

Family

ID=11737028

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/001130 WO2002064480A1 (fr) 2001-02-16 2001-02-16 Cable principal d'ascenseur

Country Status (4)

Country Link
EP (1) EP1371597B1 (fr)
JP (1) JP5398944B2 (fr)
CN (1) CN1183026C (fr)
WO (1) WO2002064480A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004115985A (ja) * 2002-09-30 2004-04-15 Tokyo Seiko Co Ltd ハイブリッドロープ
JP2004284821A (ja) * 2002-12-04 2004-10-14 Inventio Ag エレベータ用の強化合成ケーブル
JP2008150210A (ja) * 2006-12-04 2008-07-03 Inventio Ag 合成繊維ロープ
JP2014514993A (ja) * 2011-03-21 2014-06-26 オーチス エレベータ カンパニー エレベータの引張部材
JP2014533228A (ja) * 2011-11-10 2014-12-11 オーチス エレベータ カンパニーＯｔｉｓ Ｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ エレベータシステムベルト
US9731938B2 (en) 2011-04-14 2017-08-15 Otis Elevator Company Coated rope or belt for elevator systems
WO2021215008A1 (fr) * 2020-04-24 2021-10-28 三菱電機株式会社 Dispositif d'ascenseur, câble métallique et procédé de lubrification
JP7453730B1 (ja) 2022-12-27 2024-03-21 三菱電機ビルソリューションズ株式会社 エレベーターの改修方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1930496B1 (fr) * 2006-12-04 2013-07-24 Inventio AG Câble en fibres synthétiques
ES2428374T3 (es) * 2006-12-04 2013-11-07 Inventio Ag Cable de fibras sintéticas
AT516444B1 (de) 2014-11-05 2016-09-15 Teufelberger Fiber Rope Gmbh Seil aus textilem Fasermaterial
AU2018202605B2 (en) * 2017-04-20 2023-11-30 Otis Elevator Company Tension member for elevator system belt

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JPH0721599Y2 (ja) * 1991-03-22 1995-05-17 東京製綱繊維ロープ株式会社 安全繊維ロープ
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JPH08261972A (ja) * 1995-03-06 1996-10-11 Inventio Ag 合成繊維ケーブルの廃棄時期を識別する装置
JP2000192378A (ja) * 1998-10-23 2000-07-11 Inventio Ag より合成繊維ロ―プ
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004115985A (ja) * 2002-09-30 2004-04-15 Tokyo Seiko Co Ltd ハイブリッドロープ
JP2004284821A (ja) * 2002-12-04 2004-10-14 Inventio Ag エレベータ用の強化合成ケーブル
JP2008150210A (ja) * 2006-12-04 2008-07-03 Inventio Ag 合成繊維ロープ
JP2014514993A (ja) * 2011-03-21 2014-06-26 オーチス エレベータ カンパニー エレベータの引張部材
US9731938B2 (en) 2011-04-14 2017-08-15 Otis Elevator Company Coated rope or belt for elevator systems
JP2014533228A (ja) * 2011-11-10 2014-12-11 オーチス エレベータ カンパニーＯｔｉｓ Ｅｌｅｖａｔｏｒ Ｃｏｍｐａｎｙ エレベータシステムベルト
US9663328B2 (en) 2011-11-10 2017-05-30 Otis Elevator Company Elevator system belt
WO2021215008A1 (fr) * 2020-04-24 2021-10-28 三菱電機株式会社 Dispositif d'ascenseur, câble métallique et procédé de lubrification
JP7453730B1 (ja) 2022-12-27 2024-03-21 三菱電機ビルソリューションズ株式会社 エレベーターの改修方法
WO2024142321A1 (fr) * 2022-12-27 2024-07-04 三菱電機ビルソリューションズ株式会社 Câble métallique pour ascenseur et procédé de réparation d'ascenseur

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CN1183026C (zh) 2005-01-05
JPWO2002064480A1 (ja) 2004-06-10
EP1371597A4 (fr) 2007-02-14
EP1371597B1 (fr) 2012-11-14
EP1371597A1 (fr) 2003-12-17
CN1423616A (zh) 2003-06-11
JP5398944B2 (ja) 2014-01-29

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