EP1329413B1 - Cable de levage - Google Patents

Cable de levage Download PDF

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Publication number
EP1329413B1
EP1329413B1 EP00953527A EP00953527A EP1329413B1 EP 1329413 B1 EP1329413 B1 EP 1329413B1 EP 00953527 A EP00953527 A EP 00953527A EP 00953527 A EP00953527 A EP 00953527A EP 1329413 B1 EP1329413 B1 EP 1329413B1
Authority
EP
European Patent Office
Prior art keywords
strength
fiber
strands
cladding layer
rope
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.)
Expired - Lifetime
Application number
EP00953527A
Other languages
German (de)
English (en)
Other versions
EP1329413A1 (fr
EP1329413A4 (fr
Inventor
Takenobu Mitsubishi Denki Kabushiki Kaisha HONDA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1329413A1 publication Critical patent/EP1329413A1/fr
Publication of EP1329413A4 publication Critical patent/EP1329413A4/fr
Application granted granted Critical
Publication of EP1329413B1 publication Critical patent/EP1329413B1/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
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • 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
    • D07B1/02—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
    • D07B1/16—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
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/209—Jackets or coverings comprising braided structures
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • 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
    • D07B2205/2096—Poly-p-phenylenebenzo-bisoxazole [PBO]
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3007—Carbon
    • 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 hoist rope which is formed from a synthetic fiber rope, the rope being made by means of bundling a plurality of strands, and which tows a member to be suspended.
  • Figs. 2 and 3 are illustrations of a related-art hoist rope described in, e.g., Japanese Patent Application Laid-Open No. 267534/1995 ( US-A-5,566,786 ).
  • Fig. 2 is a conceptual elevation view of an elevator, showing a suspending status of a hoist rope.
  • Fig. 3 is an enlarged transverse cross-sectional view of the hoist rope shown in Fig. 2 .
  • reference numeral 1 designates a driving sheave provided on a hoisting machine of the elevator; and 2 designates a hoist rope which is wound around the driving sheave 1 and is made of a synthetic fiber rope.
  • a first member to be suspended 3 made up of an elevator car is coupled to one end of the hoist rope 2, and a second member to be suspended 4 made of a counterweight is coupled to the other end of the rope.
  • Reference numeral 5 designates a strand constituting a primary strength member of the hoist rope 2.
  • the strand is made by means of plaiting a plurality of wires of high-strength synthetic resin fiber having a diameter of several microns, and bundling in parallel the wires by means of adhesive means.
  • Reference numeral 6 designates cladding material made of synthetic resin such as urethane or polyethylene.
  • the cladding material is provided for maintaining a form in which a plurality of the strands 5 are bundled.
  • the cladding material is provided so as to cover outer circumferences of the bundled strands 5.
  • the hoist rope constituted as mentioned above suffers problems; that is, a problem of the bundled form of the strands 5 being deformed as a result of occurrence of slippage between the cladding material 6 and the strands 5 for reasons of insufficient contact between the cladding material 6 with the outer circumferences of the bundled strands 5; and a problem of a drop in the strength of the hoist rope as a result of abrasion of the cladding material for reason of occurrence of micro-slippage between the strands 5 and the cladding material 6.
  • WO 98/16681 A2 discloses a hoist rope comprising strands formed by bundling yarns of high-strength synthetic fiber in parallel and a surface cladding layer formed by a combination of synthetic resin and reinforcing fibers.
  • the present invention relates to a hoist rope, wherein a plurality of strands are each formed by means of bundling a plurality of wires of high-strength synthetic fiber in parallel, and wherein outer circumferences of the bundled strands are sheathed with a surface cladding layer of wear-and-abrasion-resistant synthetic resin material and reinforcing fiber.
  • the hoist rope comprises outer- layer strength members which are each made from wires having a diameter of several microns and are interposed between the strands and the surface cladding layer, the wires being formed from the same high-strength synthetic resin as that from which the strands are formed or from synthetic resin material categorized in the same family in which the high-strength synthetic resin is categorized.
  • outer- layer strength members which are each made from wires having a diameter of several microns and are interposed between the strands and the surface cladding layer, the wires being formed from the same high-strength synthetic resin as that from which the strands are formed or from synthetic resin material categorized in the same family in which the high-strength synthetic resin is categorized.
  • the outer-layer strength members are bundled in parallel by means of adhesive means made from material having a fusing point characteristic lower than that of the surface cladding layer.
  • adhesive strength between the surface cladding layer and the outer-layer strength members can be improved.
  • a bundled form of a plurality of strands of a hoist rope can be maintained; namely, deformation of the bundled strands can be prevented. Hence, shortening the life of the hoist rope can be prevented, thus improving the suspension reliability of the rope.
  • the rope has a surface cladding layer formed by mixture of high-strength fiber.
  • the strength of the surface cladding layer is improved, thus enhancing the strength of the hoist rope.
  • the rope may have a surface cladding layer formed by means of mixture of high-strength fiber, the fiber being made from the same high-strength synthetic fiber as that from which the strands are formed.
  • a surface cladding layer formed by means of mixture of high-strength fiber, the fiber being made from the same high-strength synthetic fiber as that from which the strands are formed.
  • the rope may have a surface cladding layer formed by means of mixture of high-strength metal fiber. As a result, the strength of the surface cladding layer is improved, thus enhancing the strength of the hoist rope.
  • the rope may have a surface cladding layer formed by means of high-strength fiber having been integrally braided into a mesh pattern.
  • the strength of the surface cladding layer is improved, thus enhancing the strength of the hoist rope.
  • the elongation characteristic of the surface cladding layer and that of the strands can be made uniform.
  • the hoist rope is improved in wear-and-abrasion-resistance, whereby the life of the rope can be prolonged and suspension reliability of the rope can be improved.
  • reference numeral 7 designates a strand constituting a primary strength member of a hoist rope 2 made from a synthetic fiber rope, and the strand is made by bundling a plurality of wires having a diameter of several microns formed from high-strength synthetic resin fiber with adhesive means.
  • Reference numeral 8 designates a surface cladding layer which is made of wear-and-abrasion-resistant synthetic resin and is arranged so as to cover outer circumferential surfaces of the plurality of strands 7.
  • the surface cladding layer 8 is formed from the same high-strength synthetic resin as that from which the strands 7 are formed or from synthetic resin belonging to the same family as that to which the high-strength synthetic resin belongs.
  • the strength of the surface cladding layer 8 is enhanced by mixture of high-strength fiber 9 made of PBO resin; aramid, e.g. KEVLAR®; carbon; or XYRON®.
  • High-strength metal fiber such as a wire formed from carbon steel by means of hardening, or a monocrystal material such as a whisker, can be employed as an alternative to the high-strength fiber 9.
  • the high- strength fiber 9 mixed into the surface cladding layer 8 differs in elongation characteristic from high-strength synthetic fiber from which the stands 7 are formed
  • the high-strength fiber 9 to be mixed integrally into the surface cladding layer 8 is plaited into a mesh pattern.
  • the high-strength fiber 9 to be mixed into the surface cladding layer 8 is formed from the same high-strength synthetic resin fiber as that from which the strands 7 are formed or if an improvement in the strength of the rope is expected by virtue of mixture of the high-strength fiber 9, the strands 7 and the high-strength fiber 9 are arranged linearly in parallel with each other in the longitudinal direction of the hoist rope 2, whereby integration of the strands 7 with the high-strength fiber 9 and an improvement in the strength of the rope can be achieved.
  • the high-strength fiber 9 to be mixed into the surface cladding layer 8 is made of a material differing from the high-strength synthetic resin fiber constituting the strands 7 or if an improvement in wear-and-abrasion resistance of the rope is expected by virtue of mixture of the high-strength fiber 9, the high-strength fiber 9 is plaited into a mesh pattern, whereby integration of the strands 7 with the high-strength fiber 9 and an improvement in the wear-and-abrasion resistance of the rope can be achieved.
  • Outer-layer strength members are formed between the strands 7 and the surface cladding layer 8.
  • Each of the outer-layer strength members is formed by means of bundling wires having a diameter of several microns, the wires being formed from the same high-strength synthetic resin as that from which the strands are formed or from synthetic resin material categorized in the same family in which the high-strength synthetic resin is categorized.
  • the outer-layer strength member is formed by means of bundling the wires in parallel with adhesive means.
  • the outer-layer strength members are formed so as to enclose the outer circumferential surfaces of the plurality of strands 7. Thus, the strength of the hoist rope 2 can be enhanced by means of the strength member along with the strands 7.
  • the outer-layer strength members are bundled in parallel with each other by means of adhesive means made from material having a fusing point characteristic lower than that of the surface cladding layer 8.
  • adhesive strength between the surface cladding layer 8 and the outer-layer strength members can be improved when the outer-layer strength members are sheathed with the surface cladding layer 8 through fused coating.
  • An improvement in adhesive strength between the surface cladding layer 8 and the outer-layer strength members enables preservation of a bundled form of the plurality of strands 7 of the hoist rope 2; namely, deformation of the bundled strands can be prevented. Hence, shortening of the life of the hoist rope can be prevented.
  • a hoist rope according to the present invention is provided with a plurality of strands which are each formed by means of bundling a plurality of wires of high-strength synthetic fiber in parallel, and a surface cladding layer of wear-and-abrasion-resistant synthetic resin sheathing outer circumferences of the bundled strands.
  • outer-layer strength members are each made from wires having a diameter of several microns and are interposed between a plurality of bundled strands and a surface cladding layer, wherein the wires are formed from the same high-strength synthetic resin as that from which the strands are formed or from synthetic resin material categorized in the same family in which the high-strength synthetic resin is categorized.
  • the strength of the hoist rope is enhanced by means of the strength members along with the strands, and the hoist rope is useful for towing a member to be suspended by way of a driving sheave. Further, desired strength is readily obtained, and a suspension reliability of the rope can be improved.
  • the rope is suitable for towing the member.
  • the hoist rope according to the present invention is provided with the outer-layer strength members which are bundled in parallel by means of adhesive means made from material having a fusing point characteristic lower than that of the surface cladding layer.
  • adhesive strength between the surface cladding layer and the outer-layer strength members is improved, and the rope is useful for towing a member to be suspended by way of a driving sheave.
  • Preservation of a bundled form of a plurality of strands of a hoist rope; namely, prevention of deformation of the bundled strands, can be achieved.
  • shortening of the life of the hoist rope can be prevented, thus improving the suspension reliability of the rope.
  • the rope is suitable for towing the member.
  • the hoist rope may be provided with a surface cladding layer formed by mixture of high-strength fiber.
  • a surface cladding layer formed by mixture of high-strength fiber.
  • the hoist rope may be provided with a surface cladding layer formed by means of mixture of high-strength fiber, the fiber being made from the same high-strength synthetic fiber as that from which the strands are formed.
  • a surface cladding layer formed by means of mixture of high-strength fiber, the fiber being made from the same high-strength synthetic fiber as that from which the strands are formed.
  • the hoist rope may be provided with a surface cladding layer formed by means of mixture of high-strength metal fiber.
  • a surface cladding layer formed by means of mixture of high-strength metal fiber.
  • the hoist rope may be provided with a surface cladding layer formed by means of high-strength fiber having been integrally braided into a mesh pattern.
  • a surface cladding layer formed by means of high-strength fiber having been integrally braided into a mesh pattern.
  • Desired strength is readily obtained, and the elongation characteristic of the surface cladding layer and that of the strands can be made uniform.
  • the wear-and-abrasion-resistance of the hoist rope is improved, whereby the life of the rope can be prolonged and suspension reliability of the rope can be improved.
  • the rope is suitable for towing the member.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Ropes Or Cables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

Selon l'invention, un brin (7) est formé par réunion en parallèle d'un certain nombre de lignes fines constituées d'une fibre de résine synthétique de haute résistance. Une pluralité de tels brins (7) sont assemblés en faisceau et une couche de couverture de surface (8), constituée d'une résine synthétique résistant à l'usure, est formée de façon à couvrir la surface périphérique extérieure du faisceau obtenu, constituant ainsi un câble de levage (2). Le câble de levage (2) ainsi conçu est utilisé pour la suspension d'objets (3, 4) et leur levage par l'intermédiaire d'une poulie à gorge (1). Cette configuration réduit la tendance du câble de levage (2) à perdre sa forme, et lui permet de conserver sa résistance et d'offrir une meilleure fiabilité de suspension.

Claims (5)

  1. Câble de levage comprenant :
    une pluralité de torons (7) qui sont formés, chacun, au moyen d'un regroupement en parallèle d'une pluralité de fils de fibre synthétique de haute résistance ; et
    une couche de placage de surface (8) formée par une combinaison d'une matière de résine synthétique résistant à l'usure et à l'abrasion et d'une fibre de renfort (9) de façon à recouvrir des surfaces circonférentielles extérieures des torons regroupés ; caractérisé
    par des éléments de force de couche extérieure qui sont formés à partir de fils ayant un diamètre de plusieurs microns, les fils étant formés à partir de la même résine synthétique de haute résistance que celle avec laquelle les torons (7) sont formés ou à partir d'une matière de résine synthétique catégorisée dans la même famille que celle dans laquelle la résine synthétique de haute résistance est catégorisée, et qui sont interposés entre les torons (7) et la couche de placage de surface (8) ; et
    par les éléments de force de couche extérieure étant formés en regroupant les fils parallèlement les uns aux autres à l'aide d'un moyen adhésif fait d'une matière ayant une caractéristique de point de fusion inférieure à celle de la couche de placage de surface (8).
  2. Câble de levage selon la revendication 1, dans lequel la couche de placage de surface est formée par un mélange de la matière de résine synthétique résistant à l'usure et à l'abrasion et d'une fibre de haute résistance comme la fibre de renfort (9).
  3. Câble de levage selon la revendication 2, dans lequel la fibre de haute résistance est la même fibre synthétique de haute résistance que celle à partir de laquelle les torons (7) sont formés.
  4. Câble de levage selon la revendication 2, dans lequel la fibre de haute résistance est une fibre de métal de haute résistance.
  5. Câble de levage selon la revendication 2 ou 4, dans lequel la fibre de haute résistance est tressée en un motif de maille d'un seul tenant avec la couche de placage de surface (8).
EP00953527A 2000-08-21 2000-08-21 Cable de levage Expired - Lifetime EP1329413B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/005577 WO2002016248A1 (fr) 2000-08-21 2000-08-21 Cable de levage

Publications (3)

Publication Number Publication Date
EP1329413A1 EP1329413A1 (fr) 2003-07-23
EP1329413A4 EP1329413A4 (fr) 2007-01-10
EP1329413B1 true EP1329413B1 (fr) 2011-01-12

Family

ID=11736375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00953527A Expired - Lifetime EP1329413B1 (fr) 2000-08-21 2000-08-21 Cable de levage

Country Status (6)

Country Link
EP (1) EP1329413B1 (fr)
JP (1) JP4777597B2 (fr)
KR (1) KR100475330B1 (fr)
CN (1) CN1379730A (fr)
DE (1) DE60045525D1 (fr)
WO (1) WO2002016248A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602612A4 (fr) * 2003-03-10 2009-08-05 Mitsubishi Electric Corp Ascenseur
CN101349145B (zh) * 2007-07-18 2012-07-25 江苏联冠科技发展有限公司 可替代钢制抽油杆的玄武岩缆绳
RU2553967C2 (ru) 2011-04-14 2015-06-20 Отис Элевэйтор Компани Канат или ремень с покрытием для подъемных систем
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
JP2015048178A (ja) * 2013-08-30 2015-03-16 東芝エレベータ株式会社 エレベータ装置
CN107709214B (zh) * 2015-06-08 2019-12-20 株式会社日立制作所 电梯用主吊索和使用其的电梯装置
CN105256621A (zh) * 2015-09-25 2016-01-20 安徽博邦超纤皮革有限公司 一种超细纤维皮绳

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2276419A2 (fr) * 1973-08-01 1976-01-23 Europ France Cordes Procede et installation de fabrication de cordes ainsi realisees
US4422286A (en) * 1982-02-08 1983-12-27 Amsted Industries Incorporated Fiber reinforced plastic impregnated wire rope
JPH0248477Y2 (fr) * 1986-02-07 1990-12-19
JP3185820B2 (ja) * 1992-12-28 2001-07-11 東洋紡績株式会社 ロープ
BR9500779A (pt) 1994-03-02 1995-10-24 Inventio Ag Cabo como meio de suporte para elevadores
JPH08209563A (ja) * 1995-02-06 1996-08-13 Du Pont Toray Keburaa Kk 繊維ロープ
US5881843A (en) * 1996-10-15 1999-03-16 Otis Elevator Company Synthetic non-metallic rope for an elevator
JP3225224B2 (ja) * 1998-04-10 2001-11-05 東京製綱繊維ロープ株式会社 高強力繊維ロープ
DE19819522B4 (de) * 1998-04-30 2007-12-13 Roblon A/S Seil für die Anbringung von Hochspannungsleitungen an Masten
EP1004700B1 (fr) * 1998-11-25 2011-02-16 Inventio AG Câble en fibres synthétiques sans gaine extérieure et procédé de fabrication correspondant

Also Published As

Publication number Publication date
CN1379730A (zh) 2002-11-13
JP4777597B2 (ja) 2011-09-21
WO2002016248A1 (fr) 2002-02-28
DE60045525D1 (de) 2011-02-24
EP1329413A1 (fr) 2003-07-23
EP1329413A4 (fr) 2007-01-10
KR20020035891A (ko) 2002-05-15
KR100475330B1 (ko) 2005-03-09

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