EP1426482A1 - Corde - Google Patents

Corde Download PDF

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Publication number
EP1426482A1
EP1426482A1 EP02749376A EP02749376A EP1426482A1 EP 1426482 A1 EP1426482 A1 EP 1426482A1 EP 02749376 A EP02749376 A EP 02749376A EP 02749376 A EP02749376 A EP 02749376A EP 1426482 A1 EP1426482 A1 EP 1426482A1
Authority
EP
European Patent Office
Prior art keywords
rope
coated
wires
constitutes
coating
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP02749376A
Other languages
German (de)
English (en)
Other versions
EP1426482B1 (fr
EP1426482A4 (fr
EP1426482B8 (fr
Inventor
I. Hitachi Mito Engineering Co. Ltd. Nakamura
A. Building Systems of HITACHI LTD. OMIYA
S. Mech. Eng. Res. Lab. of Hitachi Ltd IWAKURA
M. Cent.Res.Lab. Tokyo Rope Mfg. Co. Ltd KUSUDA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Tokyo Rope Manufacturing Co Ltd
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 Hitachi Ltd, Tokyo Rope Manufacturing Co Ltd filed Critical Hitachi Ltd
Publication of EP1426482A1 publication Critical patent/EP1426482A1/fr
Publication of EP1426482A4 publication Critical patent/EP1426482A4/fr
Publication of EP1426482B1 publication Critical patent/EP1426482B1/fr
Application granted granted Critical
Publication of EP1426482B8 publication Critical patent/EP1426482B8/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • 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
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • 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
    • 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
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1028—Rope or cable structures characterised by the number of strands
    • D07B2201/1036—Rope or cable structures characterised by the number of strands nine or more strands respectively forming multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2065—Reducing wear
    • D07B2401/207—Reducing wear internally

Definitions

  • the present invention relates to a rope usable for an elevator and mechanical handling equipment.
  • a cage and a balance weight are connected to each other by a rope, and the rope is driven by a frictional force generated between a sheave of a hoisting device and the rope extending around the sheave.
  • a rope for suspending a load is wound on a winding drum to be driven.
  • a conventional rope usable in these conventional mechanisms has a structure in which a fabric rope impregnated with lubricant oil is positioned as a core at a center of the rope, and constitutes each of which includes twisted steel wires are twisted around the fabric rope.
  • a life duration of the rope is significantly decreased by fatigue and abrasion of the wires caused by flexure of the rope.
  • a frictional coefficient between the sheave and the rope is small, the smaller a diameter of the sheave is, the greater a difficulty of securely maintaining a driving frictional force is.
  • a diameter of the sheave for frictional driving is not less than forty times of a diameter of the rope. That is, a driving torque is increased by an increase of the diameter of the sheave so that a size of a driving device is increased.
  • the elevator is designed to satisfy the increased driving torque, but a demand for decreasing a size of an element device increases in accordance with an increase in demand for decreasing a space for the elevator.
  • JP-A-07-267534 proposes that organic filaments are used as a load bearing member, and since each of the filaments has a diameter not less than 10 ⁇ m and less than 20 ⁇ m, a fatigue of the load bearing member does not occur and a longer lasting life of the rope is obtainable even when a curvature radius of the rope is decreased.
  • JP-A-3-82883 a rope in which a lubricating protect layer is attached to each of bundles of twisted wires, the bundles of twisted wires are twisted, and an outer periphery of the twisted bundles is coated is proposed.
  • a rope of the invention is configured in such a manner that a core is a first coated constitute in which a first constitute as a twisted bundle of metallic wires is coated with a coating material, an annular bundle of second coated constitutes in each of which a second constitute as a twisted bundle of metallic wires is coated with the coating material is twisted on a periphery of the core, and a periphery of the annular bundle of second coated constitutes surrounding the first coated constitute is coated with a third coating material so that the second and third coating material are joined to each other.
  • join means an adhesion by an adhesive, a fusion bonding between two members by heating, a bonding by chemical treatment and so forth.
  • each of the first and second constitutes is the twisted bundle of metallic wires, the rope has a high rigidity and a low aged deterioration, and since each of the first and second constitutes is coated with the coating material, the wires of the first and second constitutes are prevented from directly contacting each other and from slipping with respect to each other, so that a high-abrasion-resistant and long-life rope is obtained.
  • Fig. 1 is an overall view showing an embodiment of an elevator to which a rope of the invention is applied.
  • a carrier cargo 1 for a passenger or freight includes at lower part thereof pulleys 5a and 5b for receiving a rope 10, and a balance weight 2 balancing approximately with a total amount in weight of the carrier cargo 1 and a half of a rated load thereof includes an upper part thereof a pulley 5e for receiving the rope 10.
  • Pulleys 5c and 5d for receiving the rope 10 are arranged at a top of a hoistway 7, and a driving device 3 including a sheave 3a is arranged at a lower part of the hoistway 7.
  • the rope 10 of the invention extends from a rope catcher 6a through the pulleys 5a and 5b below the carrier cargo and the pulley 5c on the top to the sheave 3a of the driving device 3 to partially surround it. Further, the rope passes the pulley 5d on the top and the pulley 5e of the balance weight and terminates at a rope catcher 6b at the top.
  • the rope 10 of the invention is soft and has a great frictional coefficient between its coating and the sheave 3a, the rope is usable in a long life and capable of securely transmitting a driving force even when a sheave diameter is small.
  • the sheave diameter may be from one-third to one half of the conventional sheave diameter. Therefore, since a driving torque to be generated by the driving device may be from one-third to one half, a size of the driving device can be significantly decreased.
  • diameters of the pulleys below the carrier cargo, on the upper part of the balance weight and at the top of the hoistway may be small similarly, an overhead (a distance between a surface of an uppermost floor and a ceiling of the hoistway) and a pit depth (a distance of a surface of a lowermost floor and a pit of the hoist way) can be decreased.
  • Figs. 2-9 are cross sectional views showing the ropes of the invention.
  • the rope is formed by a first coated constitute 12 arranged at a center of the rope and a plurality of second coated constitutes 13 arranged around the first coated constitute 12 while the first and second coated constitutes 12 and 13 are twisted and a coating (outer coating) 11 is formed on an outer periphery of the twisted first and second coated constitutes.
  • Each of the coated constitutes 12 and 13 is formed by high-tension steel wires each of whose diameters is from one hundredth to one fifteenth of a diameter of the rope without the outer coating and by forming a coating (inner coating) on each bundle of the small diameter wires.
  • the small diameter wires enable the rope to be softened and to extend easily around the small diameter sheave and pulley.
  • the coating (inner coating) of the coated constitutes 12 and 13 is made of an organic (thermoplastic) material being adhesive to the wires and having a preferable elasticity
  • the coating (outer coating) of the rope is made of an organic (thermoplastic) material having a preferable frictional coefficient with respect to the sheave and being abrasion-resistant.
  • the coated constitutes are twisted, a pressing force is generated between the coated constitutes when a tension is applied to the coated rope, and a radial pressing force is generated in the rope when the rope extends around the sheave and pulleys. As described above in an actual operating condition, the pressure and mutual slip are generated between the coated constitutes.
  • the wires contact each other directly so that an abrasion of the wires occurs. Since diameters of the wires are decreased to soften the rope, an operating life of the rope is significantly decreased.
  • the coatings on the constitutes 12 and 13 prevent the direct contact of the wires between the constitutes. That is, by the coating between the wires of the constitutes adjacent to each other, the direct contact of the wires therebetween is prevented so that the abrasion of the wires is restrained.
  • the pressure and mutual slip are generated between the coatings of the constitutes adjacent to each other, the pressure and mutual slip are lightened by an elasticity of the coatings, and the abrasion resistance is significantly improved.
  • the coating applied to the constitute is effective for lightening the pressure and mutual slip between the constitutes adjacent to each other. It is desirable for increasing this affect to increase a thickness of the coating.
  • a ratio of a cross sectional area of a load bearing member to a cross sectional area of the constitute becomes small.
  • a ratio of the load bearing member to a cross sectional area of the rope formed by twisting the constitutes becomes small so that the cross sectional area needs to be great for keeping the strength unchanged. Therefore, the thickness of the coating is made as small as possible as a minimum thickness necessary for lightening the pressure between the wires and the mutual slip, for example, preferably 0.2-0.5 mm.
  • a gap ⁇ is formed between the second coated constitutes 13 adjacent to each other around the first coated constitute 12 so that the coating material forming the outer coating can easily permeate between the constitutes. Therefore, not only a contact area between the outer coating 11 and the second coated constitutes 13 but also a contact area between the outer coating 11 and the first coated constitute 12 are increased so that an adhesive strength or fusion bonding strength between the inner and outer coatings is improved.
  • Fig. 3 shows a concrete structure of the coated constitute 12 or 13.
  • a constitute 22 is formed by twisting wires 21, and an outer periphery thereof is coated with a coating 23 to form a coated constitute 20.
  • diameters of the wires 21 is, as described above, from one thirteenth to one hundredth of the diameter of the rope without the outer coating.
  • the constitute has (1+6+12) structure (double layer windings) by 19 wires extending parallel to each other.
  • a line contact is formed between the wires so that a contact pressure between the wires generated by longitudinal and radial loads applied to the rope is lightened in comparison with a point contact therebetween.
  • the coating 23 is formed on the constitute 22 formed by twisting the wires 21, the constitute 22 is cleaned by a cleaner, and subsequently the coating 23 is formed after coating the constitute 22 with an adhesive or the surfaces of the wires and the coating material are chemically bonded to each other by forming the coating after performing a suitable subsequently surface treatment on the wires.
  • the wires are plated with brass, and the coating including sulfur is formed on the constitute 22 so that the plating component on the surface of the wires and a component of the coating material are chemically bonded to each other by vulcanization.
  • the wires positioned on the outer periphery of the constitute 22 and the coating are adhered to each other to be held, and the wires positioned at the inside of the outer periphery are not restrained from moving. Therefore, a resistance is small when being bent to a small curvature radius, so that the soft rope is obtainable.
  • the wires directly contact each other extend parallel to each other and the diameter of the wires are small, the contact area is great so that the surface pressure is small and the slip between the wires generated when bending the rope is significantly small, so that a longer lasting life is obtainable.
  • Fig. 4 shows another embodiment of the first or second coated constitute 12 or 13.
  • the same reference numeral denotes the same member. If a relatively great strength of the rope is required, a number of the wires needs to be increased because a diameter of the wires is small. In this embodiment for such requirement, the constitute has (1+6+12+18) structure (triple winding layers) by 37 twisted wires. When the number of the wires increases, as shown in Fig. 3, it is difficult for the wires to be twisted with a constant pitch between the wires.
  • Fig. 4 shows that a pitch between the wires is changed in accordance with a change in winding layers so that a cross sectional shape is easily kept circular.
  • Fig. 3 shows the wires extending parallel to each other with a cross angle of zero therebetween, this embodiment cannot have the cross angle of zero because the pitch between the wires is changed in accordance with the change in winding layers.
  • the cross angle is small so that the length of contact line between the wires can be kept great to improve the abrasion resistance of the wires.
  • Fig. 5 shows an embodiment of a coated constitute 30 in which a further increased number of the twisted wires is required.
  • a constitute 32 includes a central constitute 35 formed by twisted wires 31, and seven constitutes 34 which has a structure similar to the central constitute 35 and whose annular bundle is twisted around the central constitute 35, and an outer periphery of the constitute 32 is coated with a coating 33 to form a coated constitute 30. That is, the coated constitute 30 is formed by twisting seven of the constitutes 22 shown in Fig. 3 to form the constitute 32 and coating the outer periphery thereof.
  • this embodiment has the seven of the constitutes 22 shown in Fig. 3, this limitation is not absolute.
  • the abrasion resistance of the wires of this structure is inferior to that of the above described structures (Fig. 3 and 4), however, this structure is soft suitably for an requirement of the high tension rope.
  • this structure is preferable for being applied to the core constitute 12 having a short distance from a rope center.
  • a constitute 42 is formed by twisting constitutes 41, and an outer periphery of the constitute 42 is coated with a coating 43 to form a constitute 40.
  • the wire contact is prevented between the constitutes 41 adjacent to each other so that the abrasion resistance of the wires is significantly improved.
  • a ratio of the load bearing member to the cross sectional area of the rope is decreased by a cross sectional area of the coating on the constitutes 41 so that a strength per unit cross sectional area is decreased. Therefore, a thickness of the coating is made as small as possible to a minimum thickness for lightening the pressure and mutual slip between the wires. This structure is chosen in view of a balance among the strength, size and operating life of the coated rope.
  • FIGs. 7 and 11 another embodiment of the rope is shown.
  • This structure is basically similar to the embodiment of Fig. 2 while this structure has the core coated constitute 12, eight of the coated constitutes 13 twisted around the core coated constitute 12, and the coating 11 on the outer periphery of the coated constitutes 13.
  • the core coated constitute 12 and coated constitutes 13 are similar to those of Fig. 2 respectively.
  • Fig. 8 shows another embodiment in which constitutes 51 are twisted to form a constitute 52, and the constitute 52 is coated with a coating 53 to form a constitute 50 so that the rope is formed.
  • the rope of this structure is not restrictive on being designed in comparison with the above described ropes so that an acceptable range on design choice is expanded. That is, in the above described ropes, diameters of the core coated constitute and the circumferential constitutes around the core is limitative for increasing the cross sectional area of the load bearing member in the cross sectional area of the rope, that is, a ratio of a total amount of the cross sectional areas of the wires to the cross sectional area of the rope.
  • the constitutes may have a common diameter, so that the diameter of the wires, the diameter of the constitutes and the diameter of the rope can be freely designed and the rope can be easily produced.
  • Fig. 12 shows another embodiment. This is basically similar to the embodiment of Fig. 7, but the core coated constitute is formed by twisting the wires 21 around a core steel 24. In this embodiment, the coated constitute can have a great diameter as desired without increasing significantly the number of the wires.
  • the wires and/or the coated constitutes are twisted while applying an appropriate tension thereto in a process of forming the constitute by twisting the wires and/or a process of forming the rope by twisting the coated constitutes.
  • an unnecessary space is eliminated between the wires or the coated constitutes so that an elongation of the rope can be restricted when the tension is applied to the produced rope.
  • the constitute formed by twisting the wires When the constitute formed by twisting the wires is coated, an effective adhesive force does not occur between the wires and the coating material.
  • the constitute is cleaned, an adhesive is applied to the constitute after evaporating a solvent medium of a cleaner, and the coating (inner coating) is formed with the organic coating material during an extrusion molding process while pulling out the constitutes.
  • the coated constitutes are twisted to form the rope while applying the tension to the coated constitutes, and subsequently the outer periphery of the twisted coated constitutes is coated with the organic coating material (outer coating).
  • the inner and outer coating are joined each other with fusion bonding when the outer coating is formed.
  • the driving force when the driving force is transmitted from the sheave, the driving force is transmitted from the outer coating through the inner coating to the constitutes (load bearing member), so that the driving force is transmitted without slip between the inner and outer coatings or between the inner coating and the constitutes to drive the carrier cargo.
  • a chemical bonding in which a surface treatment is performed on the wires, and subsequently a constituent of the coating material for covering the wires and a constituent of the treated surface of the wires are made react chemically each other is usable to bond the wires and the coating each other.
  • a bonding strength by this chemical reaction is greater than an adhesion strength.
  • a purpose of the inner coating is to prevent the wires of the constitutes adjacent to each other from contacting other, and a thickness of the inner coating is preferably as small as possible to increase the ratio of the cross sectional area of the load bearing member to the cross sectional area of the rope so that a small-diameter and high-strength rope is obtainable while achieving the purpose. Therefore, the thickness is preferably 0.2-0.5 mm.
  • a purpose of the outer coating is to transmit the driving force from the sheave to the load bearing member of the rope while an abrasion thereof is kept small for a long time period against the contact with the sheave, and the thickness of the outer coating needs to be sufficient against the abrasion. Therefore, the thickness of the outer coating is preferably 0.5-1.0 mm with taking into consideration various conditions in which the rope is used.
  • the rigidity is high and the aged deterioration is prevented, while the flexibility is superior and an excessive force is prevented from being applied to the load bearing member around the small diameter sheave.
  • the rope is formed by twisting the coated constitutes each of which is formed by coating twisted metallic wires, the wires are prevented from contacting each other and slipping between the constitutes, the abrasion resistance and long life are obtainable.
  • the rope is formed by coating the coated constitutes after being twisted, the frictional coefficient with respect to the sheave is appropriately set, and the abrasion of the inner coating and wires is prevented. Since the coating covering the constitute and the coating covering the rope are individual with respect to each other to form a double layered coating, each of the coatings can be made of an optimum material for its necessary performance, a permissible range for design choice is increased, and a productivity is improved.
  • the wires are adhered to the inner coating, the slip between the wires and the inner coating is prevented so that the abrasion of the inner coating is prevented, and the operating life of the rope can be extended.
  • the rope of the invention can have an appropriate frictional coefficient on the sheave even and the long operating life when the sheave has a small diameter, the driving device and the element attached thereto, for example, the pulley can be made small. Therefore, the elevator can has a compact size and a long cycle time period of replacing the rope. Consequently, an initial cost and maintenance cost of the elevator can be decreased.
  • the rope since the metallic wires are twisted, the rope has a high rigidity and small aged deterioration, and since the rope is coated with the coating member, the rope has a long operating life and a superior abrasion resistance without the direct contact and slip between the wires.

Landscapes

  • Ropes Or Cables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP02749376.6A 2001-09-12 2002-07-26 Corde Expired - Lifetime EP1426482B8 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001276719 2001-09-12
JP2001276719 2001-09-12
PCT/JP2002/007653 WO2003025278A1 (fr) 2001-09-12 2002-07-26 Corde

Publications (4)

Publication Number Publication Date
EP1426482A1 true EP1426482A1 (fr) 2004-06-09
EP1426482A4 EP1426482A4 (fr) 2007-02-14
EP1426482B1 EP1426482B1 (fr) 2016-07-06
EP1426482B8 EP1426482B8 (fr) 2016-09-07

Family

ID=19101378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02749376.6A Expired - Lifetime EP1426482B8 (fr) 2001-09-12 2002-07-26 Corde

Country Status (5)

Country Link
EP (1) EP1426482B8 (fr)
JP (1) JP4096879B2 (fr)
KR (1) KR100611272B1 (fr)
CN (1) CN100393937C (fr)
WO (1) WO2003025278A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1517850A1 (fr) 2002-06-07 2005-03-30 Kone Corporation Ascenseur pourvu d'un cable de levage revetu
WO2006075384A1 (fr) 2005-01-14 2006-07-20 Mitsubishi Denki Kabushiki Kaisha Cable pour ascenseur et son procede de fabrication
WO2013105958A1 (fr) * 2012-01-12 2013-07-18 Otis Elevator Company Revêtement protecteur pour cordes
RU2553967C2 (ru) * 2011-04-14 2015-06-20 Отис Элевэйтор Компани Канат или ремень с покрытием для подъемных систем
US10399265B2 (en) 2013-09-26 2019-09-03 Mitsubishi Electric Corporation Method of manufacturing escalator handrail

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006061888A1 (fr) * 2004-12-08 2006-06-15 Mitsubishi Denki Kabushiki Kaisha Câble pour ascenseur et ascenseur
KR100830777B1 (ko) * 2006-08-16 2008-05-20 미쓰비시덴키 가부시키가이샤 엘리베이터용 로프 및 엘리베이터 장치
KR100837466B1 (ko) * 2006-09-06 2008-06-12 미쓰비시덴키 가부시키가이샤 엘리베이터용 로프 및 그 제조 방법
EP2149535B1 (fr) * 2007-05-29 2018-03-21 Mitsubishi Electric Corporation Procédé de connexion de câbles d'ascenseur
WO2010069875A1 (fr) * 2008-12-16 2010-06-24 Nv Bekaert Sa Corde comportant un revetement promoteur d'adherence ameliore
EP2508459B1 (fr) 2009-12-02 2015-09-30 Mitsubishi Electric Corporation Câble pour ascenseurs, et dispositif d'ascenseur
JP5060567B2 (ja) * 2010-01-22 2012-10-31 株式会社日立製作所 エレベーターのロープ巻き掛け方法、及び部材
JP6077941B2 (ja) * 2013-06-07 2017-02-08 株式会社日立製作所 エレベータ用ワイヤロープ
US11814788B2 (en) * 2019-04-08 2023-11-14 Otis Elevator Company Elevator load bearing member having a fabric structure
DE102019217625A1 (de) * 2019-11-15 2021-05-20 Contitech Antriebssysteme Gmbh Aufzugsgurt mit Corden aus beschichteten Litzen
KR20210121339A (ko) 2020-03-26 2021-10-08 동양제강 주식회사 브레이딧 구조를 갖는 로프 보호대

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197695A (en) * 1977-11-08 1980-04-15 Bethlehem Steel Corporation Method of making sealed wire rope
US4266396A (en) * 1977-10-05 1981-05-12 Cable Belt, Ltd. Improvements in and relating to ropes
US4550559A (en) * 1982-09-01 1985-11-05 Cable Belt Limited Cables and process for forming cables
WO2001068973A1 (fr) * 2000-03-15 2001-09-20 Hitachi, Ltd. Corde et ascenseur l'utilisant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4823754U (fr) * 1971-08-03 1973-03-19
JPS5571890A (en) * 1978-11-21 1980-05-30 Tokyo Rope Mfg Co Production of corrosion resistant wire rope
JPS5976986A (ja) * 1982-10-23 1984-05-02 日「鉄」ロ−プ工業株式会社 ワイヤロ−プの芯ロ−プ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266396A (en) * 1977-10-05 1981-05-12 Cable Belt, Ltd. Improvements in and relating to ropes
US4197695A (en) * 1977-11-08 1980-04-15 Bethlehem Steel Corporation Method of making sealed wire rope
US4550559A (en) * 1982-09-01 1985-11-05 Cable Belt Limited Cables and process for forming cables
WO2001068973A1 (fr) * 2000-03-15 2001-09-20 Hitachi, Ltd. Corde et ascenseur l'utilisant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03025278A1 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1517850A1 (fr) 2002-06-07 2005-03-30 Kone Corporation Ascenseur pourvu d'un cable de levage revetu
US9428364B2 (en) 2002-06-07 2016-08-30 Kone Corporation Elevator provided with a coated hoisting rope
WO2006075384A1 (fr) 2005-01-14 2006-07-20 Mitsubishi Denki Kabushiki Kaisha Cable pour ascenseur et son procede de fabrication
EP1837301A4 (fr) * 2005-01-14 2012-11-28 Mitsubishi Electric Corp Cable pour ascenseur et son procede de fabrication
RU2553967C2 (ru) * 2011-04-14 2015-06-20 Отис Элевэйтор Компани Канат или ремень с покрытием для подъемных систем
US9731938B2 (en) 2011-04-14 2017-08-15 Otis Elevator Company Coated rope or belt for elevator systems
WO2013105958A1 (fr) * 2012-01-12 2013-07-18 Otis Elevator Company Revêtement protecteur pour cordes
US10399265B2 (en) 2013-09-26 2019-09-03 Mitsubishi Electric Corporation Method of manufacturing escalator handrail
US11207814B2 (en) 2013-09-26 2021-12-28 Mitsubishi Electric Corporation Method of manufacturing an escalator handrail

Also Published As

Publication number Publication date
CN1537189A (zh) 2004-10-13
JPWO2003025278A1 (ja) 2004-12-24
KR100611272B1 (ko) 2006-08-10
KR20040025933A (ko) 2004-03-26
EP1426482B1 (fr) 2016-07-06
JP4096879B2 (ja) 2008-06-04
WO2003025278A1 (fr) 2003-03-27
CN100393937C (zh) 2008-06-11
EP1426482A4 (fr) 2007-02-14
EP1426482B8 (fr) 2016-09-07

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