EP1350886B1 - Corde en resine synthetique et son procede de production - Google Patents

Corde en resine synthetique et son procede de production Download PDF

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Publication number
EP1350886B1
EP1350886B1 EP00974899A EP00974899A EP1350886B1 EP 1350886 B1 EP1350886 B1 EP 1350886B1 EP 00974899 A EP00974899 A EP 00974899A EP 00974899 A EP00974899 A EP 00974899A EP 1350886 B1 EP1350886 B1 EP 1350886B1
Authority
EP
European Patent Office
Prior art keywords
synthetic resin
fibers
rope
end portion
conductive
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
EP00974899A
Other languages
German (de)
English (en)
Other versions
EP1350886A1 (fr
EP1350886A4 (fr
Inventor
Tatsushi Mitsubishi Denki K.K. Takahashi
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 EP1350886A1 publication Critical patent/EP1350886A1/fr
Publication of EP1350886A4 publication Critical patent/EP1350886A4/fr
Application granted granted Critical
Publication of EP1350886B1 publication Critical patent/EP1350886B1/fr
Anticipated expiration legal-status Critical
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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
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B9/00—Binding or sealing ends, e.g. to prevent unravelling
    • 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 synthetic resin rope formed by means of stranding synthetic resin fibers and conductive fibers and to a method of manufacturing the synthetic resin rope.
  • US 5,834,942 describes an apparatus for determining when a synthetic fiber cable for an elevator is ready for replacement.
  • the synthetic fiber cable includes a plurality of strand layers, each strand layer including a plurality of strands of synthetic fibers, at least one conductive fiber and terminal hardware fitted to an end portion of the cable.
  • Figs. 6 and 7 are diagrams for describing the structure of a related-art synthetic resin rope.
  • Fig. 6 is a view showing the end portion of the synthetic resin rope which is not machined.
  • Fig. 7 is a view showing the end portion of the synthetic resin rope shown in Fig. 6 when crimped by terminal hardware.
  • the related-art synthetic resin rope is formed by means of stranding synthetic resin fibers 3 and conductive fibers 4, and the end portion of the thus-stranded synthetic resin rope is crimped with terminal hardware 7 (a crimp terminal).
  • the synthetic resin fiber 3 having a high degree of electrical insulation and a coating agent 5 for insulation purpose are interposed between the conductive fibers 4 and the terminal hardware 7, thereby posing difficulty in ensuring electrically-stable connection.
  • the present invention has been conceived to solve such a related-art problem and provides a synthetic resin rope and a manufacturing method therefor which enable stable electrical connection in the end portion.
  • a synthetic resin rope according to the present invention is formed from a strand of synthetic resin fibers and conductive fibers.
  • the synthetic resin fibers are removed from an end portion of the rope, and the conductive fibers are integrated into a single body with a conductive adhesive, and terminal hardware is fitted around the conductive adhesive from the outside. As a result, electrical connection between the conductive fibers and terminal hardware can be improved.
  • a synthetic resin rope Under a method of manufacturing a synthetic resin rope according to the present invention, synthetic resin fibers and conductive fibers are twisted, to thereby produce a strand.
  • the synthetic resin fibers are removed from an end portion of the rope.
  • the plurality of exposed conductive fibers are coated with a conductive adhesive, thus integrating the fibers into a single body.
  • Figs. 1 through 5 are views for describing a mode for implementing the present invention.
  • Fig. 1 is a cross-sectional view of a synthetic resin rope
  • Fig. 2 is a cross-sectional view of a stranded synthetic resin rope.
  • reference numeral 1 designates a stranded synthetic resin rope
  • 2 designates an outer sheath of the synthetic resin rope
  • 3 designates synthetic resin fibers such as aramid fibers
  • 4 designates conductive fibers such as carbon fibers
  • 5 designates an insulation coating agent.
  • a stranded synthetic resin rope 1 is formed by means of stranding the synthetic resin fibers 3 and the conductive fibers 4 and coating the thus-stranded fibers with the insulation coating agent 5.
  • Fig. 3 is a cross-sectional view of the strand after the synthetic resin fibers 3 and the insulation coating agent 5 have been removed from the end portion and the end portion has been coated with the conductive adhesive.
  • Reference numeral 6 provided in Fig. 3 designates a conductive adhesive. As shown in Fig. 3 , after the end portion of the strand has been heated and coated with the conductive adhesive, the synthetic resin fibers 3 and the insulation coating agent 5 have been fired. Hence, the strand is formed from only the conductive fibers 4 and the conductive adhesive 6.
  • Figs. 4A and 4B show the end portion after having been crimped with a terminal.
  • Fig. 4A is a cross-sectional view of the end portion
  • Fig. 4B is a side view of the same.
  • reference numeral 7 designates terminal hardware.
  • the end portion of the synthetic resin rope after having been coated with the conductive adhesive 6 and crimped with the terminal hardware 7 corresponds to a strand which consists of only the conductive fibers 4 and the conductive adhesive 6 and has been crimped with the terminal hardware 7.
  • the terminal hardware 7 covers the end portion so as to become continuous from the outer sheath 2 covering the main body of the rope.
  • the structure of the synthetic resin rope according to the embodiment can also be described in the following manner.
  • the synthetic resin rope according to the embodiment has a main body portion and an end portion continuously connected to the main body portion.
  • the end portion has a structure in which the terminal hardware, which has the shape of a quadrangle ring, is filled with the conductive adhesive 6, and the plurality of conductive fibers 4 are embedded in the conductive adhesive 6.
  • the strand 1 is produced by means of stranding a plurality of synthetic fibers and conductive fibers extending from a plurality of conductive fibers of the end portion, and the strand 1 is covered with the outer sheath 2.
  • Fig. 5 is a flowchart showing a method of manufacturing the synthetic resin rope according to the embodiment (i.e., a process for processing an end portion).
  • the synthetic resin fibers 3, such as aramid fibers, and the conductive fibers 4, such as carbon fibers, are stranded, and the resultant strand is coated with the insulation coating agent 5.
  • the thus-coated strand is further coated with the outer sheath 2, thus producing a synthetic resin rope.
  • a synthetic resin rope that has already been produced may be used as a starting material to be subjected to terminal processing.
  • the thus-exposed conductive fibers 4 are coated with the conductive adhesive 6, and the conductive fibers 4 are integrated into a single conductor (step S2 shown in Fig. 5 ). Further, as a result of the conductive adhesive 6 setting, the mechanical strength of the conductive fibers 4 can be enhanced.
  • the terminal hardware 7 is squeezed onto (or fitted onto) the end portion of the synthetic resin rope so as to cover the thus-integrated conductive adhesive 6 from the outside, thereby producing a synthetic resin rope whose end portion has been processed (step S3 shown in Fig. 5 ).
  • step S3 shown in Fig. 5
  • electrical connection between the terminal hardware 7 and the conductive fibers 4 is made stable.
  • the conductive fibers 4 having a high heat-resistance temperature can be left and exposed by means of heating the end portion of the synthetic resin rope in a flame.
  • the conductive adhesive 6 By means of coating the thus-exposed conductive fibers 4 with the conductive adhesive 6, the plurality of conductive fibers can be integrated into a single conductor. Further, as a result of the conductive adhesive 6 setting, the mechanical strength of the conductive fibers 4 can be enhanced, and making electrical connection between the terminal hardware 7 and the conductive fibers 4 stable.
  • the invention is conceived in the manner as has been described, and hence the following effects are provided.
  • the conductive fibers still remaining on and exposed on the end portion of the rope are coated with a conductive adhesive and integrated into a single conductive line. Hence, mechanical strength of the conductive fibers can be enhanced.
  • the end portion of the synthetic resin rope is heated, thereby removing from the end portion synthetic resin fibers and an insulation coating agent, both having low high heat resistance temperatures.
  • conductive fibers having a high heat resistance temperature can be left and exposed.
  • synthetic fibers and an insulation coating agent which are interposed between the terminal hardware and the conductive fibers and have a high degree of electrical insulation, can be removed, thus enabling stable electrical connection.
  • the conductive fibers are integrated into a single conductor, and the terminal hardware is press-fitted onto the conductor. Hence, electrical connection between the conductive fibers and the terminal hardware can be made stable.
  • a synthetic resin rope according to the present invention provides sufficient electrical connection between terminal hardware provided at the end portion of the rope and internal conductive fibers while ensuring sufficient mechanical strength for, for example, an elevator rope.
  • a rope capable of smoothly transmitting an electrical signal.

Landscapes

  • Ropes Or Cables (AREA)

Abstract

La présente invention concerne une corde en résine synthétique comprenant des brins constitués de fibres en résine synthétique et fibres conductrices torsadées, les fibres en résine synthétique étant retirées à leur extrémité afin de laisser apparaître la résine conductrice qui est ensuite intégrée à un adhésif conducteur permettant sa solidification, et est sertie par un métal d'extrémité, ce qui permet de garantir une connexion électrique entre le métal d'extrémité au niveau de l'extrémité et les fibres conductrices internes.

Claims (3)

  1. Corde en résine synthétique (1) formée d'un brin de fibres en résine synthétique (3) et de fibres conductrices (4), dans laquelle les fibres en résine synthétique (3) sont enlevées d'une portion d'extrémité de la corde (1), les fibres conductrices (4) restantes sont intégrées en un corps unique avec un adhésif conducteur (6), et un matériel terminal (7) est ajusté autour de l'adhésif conducteur (6) depuis l'extérieur.
  2. Procédé de fabrication d'une corde en résine synthétique (1), comprenant les étapes consistant à :
    tordre des fibres en résine synthétique (3) et des fibres conductrices (4), pour produire ainsi un brin (1) ;
    enlever les fibres en résine synthétique (3) d'une portion d'extrémité de la corde (1) ;
    revêtir la pluralité de fibres conductrices exposées (4) avec un adhésif conducteur (6), intégrant ainsi les fibres en un corps unique ; et
    ajuster par pression un matériel terminal (7) sur l'adhésif conducteur (6) depuis l'extérieur.
  3. Procédé de fabrication d'une corde en résine synthétique (1) selon la revendication 2, dans lequel l'enlèvement des fibres en résine synthétique (3) depuis la portion d'extrémité est effectué au moyen du chauffage de la portion d'extrémité.
EP00974899A 2000-11-10 2000-11-10 Corde en resine synthetique et son procede de production Expired - Lifetime EP1350886B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/007923 WO2002038856A1 (fr) 2000-11-10 2000-11-10 Corde en resine synthetique, son procede de production et procede de traitement d'extremite

Publications (3)

Publication Number Publication Date
EP1350886A1 EP1350886A1 (fr) 2003-10-08
EP1350886A4 EP1350886A4 (fr) 2007-01-10
EP1350886B1 true EP1350886B1 (fr) 2011-05-18

Family

ID=11736678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00974899A Expired - Lifetime EP1350886B1 (fr) 2000-11-10 2000-11-10 Corde en resine synthetique et son procede de production

Country Status (4)

Country Link
EP (1) EP1350886B1 (fr)
JP (1) JPWO2002038856A1 (fr)
CN (1) CN1415037A (fr)
WO (1) WO2002038856A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11299370B2 (en) 2018-06-29 2022-04-12 Otis Elevator Company Data transmission via elevator system tension member

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100362600C (zh) * 2004-10-21 2008-01-16 谢圣明 一种光电缆用可纵包非金属加强带
WO2012013659A1 (fr) * 2010-07-26 2012-02-02 Dsm Ip Assets B.V. Câble d'attache pour systèmes d'énergie renouvelable
CN108044938B (zh) * 2017-12-12 2020-06-12 浙江蒂彩工艺品股份有限公司 一种3d打印用丝状物料同步打印方法
US20240076164A1 (en) * 2022-09-02 2024-03-07 Otis Elevator Company Elevator load bearing member with conductive adhesive

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168224A (ja) * 1987-12-24 1989-07-03 Mitsubishi Heavy Ind Ltd 海水中導電性ロープ及び海水中防汚魚網
JP3462923B2 (ja) * 1995-02-09 2003-11-05 東京製綱株式会社 多層型繊維複合ケーブルの端末定着方法
CA2169431C (fr) * 1995-03-06 2005-07-12 Claudio De Angelis Materiel servant a indiquer quand des cables a fibres synthetiques doivent etre mis au rebut
JP3563550B2 (ja) * 1996-12-28 2004-09-08 東京製綱株式会社 ワイヤ・ロープ端末の封止構造
JP2000234284A (ja) * 1999-02-16 2000-08-29 Du Pont Toray Co Ltd 繊維ロープの端末締結方法
IL140043A (en) * 1999-12-21 2006-07-05 Inventio Ag Synthetic ropes are tested for safety that connect in contact

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11299370B2 (en) 2018-06-29 2022-04-12 Otis Elevator Company Data transmission via elevator system tension member

Also Published As

Publication number Publication date
CN1415037A (zh) 2003-04-30
JPWO2002038856A1 (ja) 2004-03-18
EP1350886A1 (fr) 2003-10-08
EP1350886A4 (fr) 2007-01-10
WO2002038856A1 (fr) 2002-05-16

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