EP2184401A1 - Seil, herstellungsverfahren dafür und seilverbund mit kautschuk - Google Patents

Seil, herstellungsverfahren dafür und seilverbund mit kautschuk Download PDF

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Publication number
EP2184401A1
EP2184401A1 EP08791298A EP08791298A EP2184401A1 EP 2184401 A1 EP2184401 A1 EP 2184401A1 EP 08791298 A EP08791298 A EP 08791298A EP 08791298 A EP08791298 A EP 08791298A EP 2184401 A1 EP2184401 A1 EP 2184401A1
Authority
EP
European Patent Office
Prior art keywords
cord
strand
core
rubber
filaments
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.)
Withdrawn
Application number
EP08791298A
Other languages
English (en)
French (fr)
Other versions
EP2184401A4 (de
Inventor
Mitsuhiro Nishimura
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.)
Bridgestone Corp
Original Assignee
Bridgestone 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 Bridgestone Corp filed Critical Bridgestone Corp
Publication of EP2184401A1 publication Critical patent/EP2184401A1/de
Publication of EP2184401A4 publication Critical patent/EP2184401A4/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
    • D07B7/145—Coating or filling-up interstices
    • 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
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D07B1/0626—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords consisting of three core wires or filaments and at least one layer of outer wires or filaments, i.e. a 3+N configuration
    • 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
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2023—Strands with core
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2027—Compact winding
    • D07B2201/2028—Compact winding having the same lay direction and lay pitch
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2036—Strands characterised by the use of different wires or filaments
    • D07B2201/2037—Strands characterised by the use of different wires or filaments regarding the dimension of the wires or filaments
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2038—Strands characterised by the number of wires or filaments
    • D07B2201/2039—Strands characterised by the number of wires or filaments three to eight wires or filaments respectively forming a single layer
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2038—Strands characterised by the number of wires or filaments
    • D07B2201/204—Strands characterised by the number of wires or filaments nine or more wires or filaments respectively forming multiple layers
    • 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
    • D07B2201/2015—Strands
    • D07B2201/2046—Strands comprising fillers
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2048—Cores characterised by their cross-sectional shape
    • D07B2201/2049—Cores characterised by their cross-sectional shape having protrusions extending radially functioning as spacer between strands or wires
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/2062—Cores characterised by their structure comprising wires comprising fillers
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2065—Cores characterised by their structure comprising a coating
    • 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
    • D07B2201/2073—Spacers in circumferencial 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
    • D07B2201/2071—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
    • D07B2201/2079—Fillers characterised by the kind or amount of filling
    • D07B2201/2081—Fillers characterised by the kind or amount of filling having maximum filling
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/20—Type of machine
    • D07B2207/204—Double twist winding
    • D07B2207/205—Double twist winding comprising flyer
    • 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
    • D07B2501/2046—Tire cords

Definitions

  • the present invention relates to a cord used for reinforcing a rubber product such as a tire and an industrial belt, method of producing same, and a rubber-cord composite body.
  • a high strength is demanded for a cord used for reinforcing a tire, especially a tire for a construction vehicle, so that a cord made of a plurality of strands produced by twisting a plurality of filaments, which strands are further twisted to form a so-called multiple-twisting structure, is used for this purpose.
  • a strand is made from a plurality of filaments and then a plurality of strands are twisted to give the cord.
  • it has more filaments and a more complicated twisting structure than a cord having a single twisting structure used for reinforcing, for example, a passenger vehicle.
  • a tensile strength of the cord becomes smaller than the sum of tensile strengths of the cords, which increases twisting loss.
  • the above-mentioned technique can suppress the twisting loss, it is demanded particularly for a cord used for reinforcing a tire to ensure corrosion resistance as a reinforcing material. That is, when the tire suffers an external injury, water intrudes from the external injury into the tire to reach the cords, which may corrode the cords. If any spaces exist inside the cords, the water disperses through the spaces in the axial direction of the cord and the corrosion area expands along the cord. This may cause a malfunction due to a separation with the corrosion area being as the origination of the separation.
  • a characteristic capable of suppressing the intrusion of water into the inside of the cord, i.e. corrosion resistance is, therefore, demanded particularly for a cord for reinforcing a tire in order to avoid such dispersion of the corrosion.
  • the corrosion resistance is highly desired for the cord having the above-mentioned multiple-twisting structure.
  • a commonly used means is that sufficient spaces extending from the outside of the strands to the inside of the strands are provided to allow the rubber to sufficiently intrude into the inside of the strand during a vulcanization step of a tire manufacturing process.
  • the cord having the multiple-twisting structure is, however, formed by twisting a plurality of filaments to obtain a strand and further twisting a plurality of the strands.
  • the structure of the cord thus, becomes complicated and it is difficult to provide spaces for allowing the rubber to sufficiently intrude into the inside of the strands. As a result, the rubber cannot sufficiently intrude into the inside of the strands during the vulcanization step of the tire manufacturing process, so that improvement of the corrosion resistance is difficult.
  • the object of the present invention is, therefore, to provide a cord structure capable of suppressing twisting loss and improving corrosion resistance particularly of a cord having a complicated multiple-twisting structure by allowing rubber to sufficiently intrude into the inside of strands constituting the cord.
  • the present inventor had dedicated to study a means for improving corrosion resistance of a cord having a complicated multiple-twisting structure and found it effective for allowing the rubber to sufficiently intrude into the inside of the strands during the vulcanization step of the tire manufacturing process to coat the filaments used for the production of the strands with unvulcanized rubber prior to twisting a plurality of the strands to form a cord.
  • the present invention is completed in this way.
  • the gist of the present invention is as follows:
  • a rubber-cord composite body wherein a plurality of the cord according to any one of the above-items (1) to (5) are arranged in parallel with each other and coated with rubber.
  • a method of producing a cord including a plurality of strands that are twisted together, each strand having a core composed of a filament or a plurality of filaments that are twisted together, and at least one layer of sheaths around the core composed of a plurality of filaments that are twisted together, wherein at least a circumferential surface of the core of the strand is coated with unvulcanized rubber prior to form the cord.
  • the filaments constituting the strand are preliminarily coated with unvulcanized rubber, so that the unvulcanized rubber is allowed to flow and thus be distributed into the space between the filaments in the strand.
  • the rubber therefore, can sufficiently intrude into the inside of the strand, which enables to provide a cord having improved corrosion resistance and suppressed twisting reduction.
  • FIG. 1 A cross-section of the cord according to the present invention is shown in Fig. 1 .
  • the cord 1 shown in the figure has a core strand 2 and six sheath strands 3 twisted around the core strand 2.
  • the core strand 2 and the sheath strands 3 have the same configuration. That is, each strand has a 3+9 structure in which a sheath 6 consisting of nine sheath filaments 4a is twisted around a core 5 consisting of three core filaments 5. It is essential that at least a circumferential surface of the core 5 constituting the core strand 2 and sheath strand 3 is coated with unvulcanized rubber 7.
  • the unvulcanized rubber 7 coating the surroundings of the core 5 constituting the core strand 2 and the sheath strand 3 fill inside of the each strand to prevent water intruding through an external injury of the tire from reaching the inside of the cord.
  • the corrosion resistance can be improved.
  • the twisting loss can also be suppressed.
  • each strand 2 and the sheath strand 3 do not necessarily have the shown structure as far as they are formed by twisting a plurality of filaments. It is, however, preferable that each strand has a compact structure in which the plurality of filaments are twisted in the same direction with the same pitch.
  • the compact structure allows a line contact between the filaments in the cord and avoids a point contact between the filaments to suppress fretting wear, so that the corrosion resistance is improved. Further, the compact structure enables to complete the twisting of the strands in a single step in the process of producing the strand, which improves the productivity.
  • a circumferential surface of the core strand 2 is preferably coated with the unvulcanized rubber 7, as shown in Fig. 2 .
  • the circumferential surface of the core strand 1 is coated with the unvulcanized rubber to more certainly avoid a contact between the core strand 2 and the sheath strand 3, so that the twisting reduction can be further suppressed.
  • the inside of the cord is filled with the unvulcanized rubber, which improves the corrosion resistance of the cord.
  • the cord formed by twisting six sheath strands around a core strand as shown in Figs. 1 and 2 is a typical multiple-twisting structure cord, and has an advantage that overall balance of the cord can be easily maintained when strands with the same structure are twisted together.
  • cord consists of filaments with the same diameter, but filaments with different diameters may be used in combination.
  • a wrapping cord or a wrapping filament may be used if the strand needs to be constrained.
  • a number of the above-mentioned cords are arranged in parallel to give a composite body of rubberized cords and rubber used for reinforcing a tire. More specifically, the rubber-cord composite body is applied to a tire as a belt of a ply of a carcass to reinforce the tire.
  • the apparatus for producing a cord shown in Fig. 3 is provided with a wire-bundler 9 which is equipped with a given number of unwind reels 11 for unwinding respective core filaments 4 and a given number of unwind reels 11 for unwinding respective sheath filament 4a and which bundles the filaments unwound from the respective unwind reels 11, and a twisting device 10 for twisting the bundled filaments together.
  • An unvulcanized rubber-coater 8 for coating the core filament 4 with unvulcanized rubber is disposed between the unwind reels 11 and the wire-bundler 9.
  • filaments 4 to be a core and filaments 4a to be a sheath are firstly fed from the unwind reels 11 to the unvulcanized rubber-coater 8 where circumferential surfaces of the filaments 4 are coated with unvulcanized rubber. Thereafter, the core filaments 4 and the sheath filaments 4a are gathered and twisted by the wire-bundler 9 to form a core strand 2.
  • Six sheath strands 3 are produced in the same manner, and the core strands 2 and the sheath strand 3 are twisted together by means of the twisting device 10 shown in Fig. 3 to produce a cord 1.
  • the unvulcanized rubber-coater 8 is disposed between the unwind reels 11 and the wire-bundlers 9 to coat at least the circumferential surface of the core of the strand with unvulcanized rubber.
  • a manufacturing apparatus similar to that shown in Fig. 3 in which an unvulcanized rubber-coater 8 is disposed between the unwind reels 11 and the wire-bundler 9 whereby a circumferential surface of a core strand 2 is further coated with unvulcanized rubber 7 and then a plurality of sheath strands 3 are twisted around the core strand 2 to produce a cord 1.
  • the strand constituting the cord according to the present invention is twisted by a twist buncher, so that the strand having, for example, a 3+9 structure or a 1+6+12 structure can be formed into a so-called compact structure of 12 cc or 19 cc to reduce the number of production steps and to improve productivity of the strands.
  • FIG. 1 Various cords are manufactured under the specifications shown in Tables 1 and 2.
  • the structures of the cords are shown in Figs. 1, 2 and 5-18 . It is noted that each of Figs. 15-18 shows a sectional view of a conventional cord and each of Figs. 1, 2 and 5-14 shows a sectional view of a cord according to the present invention.
  • a ply in which a plurality cords according to the present invention are arranged in parallel with each other and embedded in a rubber sheet with a given space therebetween is applied to a belt and a test tire is built with using this belt.
  • the test tire is examined in relation to a ratio (%) of rubber intruding inside of a core strand of a cord used for reinforcement, a ratio (%) of rubber intruding inside of a sheath strand, a ratio (%) of rubber intruding between the core strand and the sheath strand, and twisting loss (%).
  • the number of steps is also examined in the method of producing a cord according to the present invention.
  • the test tire is dissected and a cord is isolated and separated into strands.
  • the circumferential surface of the core strand is observed from four directions with a magnifying glass to measure an area on the circumferential surface covered with the rubber by means of an image processing and analyzing device.
  • each strand has two layered twisting structure
  • the sheathes of each strand are removed and the circumferential surface of the core is observed from four directions with the magnifying glass to measure an area on the circumferential surface covered with the rubber by means of the image processing and analyzing device.
  • each strand has three layered twisting structure, the sheathes in the outermost layer of each strand are removed, the circumferential surface of the first sheath 6a located in the middle of the core and the outermost sheath is observed from four directions with the magnifying glass to measure an area on the circumferential surface covered with the rubber by means of the image processing and analyzing device, thereafter the first sheath is removed, and the circumferential surface of the core is observed from four directions to measure an area on the circumferential surface covered with the rubber by means of the image processing and analyzing device.
  • a cord without an unvulcanized rubber coating is subjected to a similar image processing to measure the surface area of each strand.
  • the inventive examples 2, 4, 6 and 8 in which the circumferential surface of the core strand is coated with unvulcanized rubber can greatly suppress the twisting loss as compared to the conventional examples 1-4 since the unvulcanized rubber serves as a cushion material. Further, the rubber intrusion between the core strand and the sheath strand is improved, so that it is possible to concurrently improve the ratio of exerting strength and the corrosion resistance of the entire cord.
  • the ratio of exerting strength as used herein is defined as a ratio of actual strength of the cord with respect to a value calculated from a steel material, a strand diameter and the number of element strands.

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  • Ropes Or Cables (AREA)
EP08791298.6A 2007-07-17 2008-07-17 Seil, herstellungsverfahren dafür und seilverbund mit kautschuk Withdrawn EP2184401A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007186027 2007-07-17
PCT/JP2008/062944 WO2009011397A1 (ja) 2007-07-17 2008-07-17 コードおよびその製造方法並びに、コードおよびゴムの複合体

Publications (2)

Publication Number Publication Date
EP2184401A1 true EP2184401A1 (de) 2010-05-12
EP2184401A4 EP2184401A4 (de) 2013-09-18

Family

ID=40259729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08791298.6A Withdrawn EP2184401A4 (de) 2007-07-17 2008-07-17 Seil, herstellungsverfahren dafür und seilverbund mit kautschuk

Country Status (5)

Country Link
US (1) US20100170215A1 (de)
EP (1) EP2184401A4 (de)
JP (1) JPWO2009011397A1 (de)
CN (1) CN101802297A (de)
WO (1) WO2009011397A1 (de)

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FR2947574B1 (fr) 2009-07-03 2012-11-09 Michelin Soc Tech Cable multitorons dont les torons elementaires sont des cables a deux couches gommes in situ.
FR2947575B1 (fr) 2009-07-03 2011-08-19 Michelin Soc Tech Cable multitorons dont les torons elementaires sont des cables a deux couches gommes in situ.
EP2504485B1 (de) * 2009-11-27 2014-07-30 NV Bekaert SA Offenes mehrstrangiges kabel
US20130270043A1 (en) * 2010-12-22 2013-10-17 Otis Elevator Company Elevator system belt
FR2982885B1 (fr) * 2011-11-23 2014-11-07 Michelin Soc Tech Procede de fabrication d'un cable metallique a deux couches gomme in situ par un elastomere thermoplastique insature
ES2642918T3 (es) 2012-02-06 2017-11-20 Nv Bekaert Sa Elemento de acero alargado que comprende un recubrimiento de aleación de latón ternaria o cuaternaria y método correspondiente
JP6040259B2 (ja) 2012-02-06 2016-12-07 ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニムＮ Ｖ Ｂｅｋａｅｒｔ Ｓｏｃｉｅｔｅ Ａｎｏｎｙｍｅ 蒸気経年変化および硬化後湿潤接着のための三元または四元合金被覆物、三元または四元黄銅合金被覆物を備えた細長い鋼製エレメント、ならびに対応する方法
PL2877630T3 (pl) * 2012-07-24 2019-04-30 Bekaert Sa Nv Linka stalowa do wzmacniania gumy z włóknami wybiórczo powleczonymi mosiądzem
JP6063768B2 (ja) * 2013-02-21 2017-01-18 住友ゴム工業株式会社 スチールコード及びそれを用いた弾性クローラ
JP6343872B2 (ja) * 2013-04-11 2018-06-20 横浜ゴム株式会社 スチールコードおよびゴム製品の製造方法
CN103696304B (zh) * 2013-12-19 2016-05-18 江苏法尔胜特钢制品有限公司 一种预填胶泥的输送带钢丝绳、其制备方法及装置
CN106460320A (zh) * 2014-05-14 2017-02-22 贝卡尔特公司 多股钢帘线
US10895037B2 (en) * 2014-07-28 2021-01-19 Bridgestone Corporation Steel cord for reinforcing rubber article
FR3029542B1 (fr) * 2014-12-09 2017-07-28 Michelin & Cie Cable textile haut module a au moins triple torsion
WO2017056030A1 (en) * 2015-09-30 2017-04-06 Pirelli Tyre S.P.A. Method and apparatus for controlling the feed of semifinished products in a tyre building process
FR3060616A1 (fr) * 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Cable multi-torons a deux couches a penetrabilite amelioree
FR3060617A1 (fr) * 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Cable multi-torons a deux couches a penetrabilite amelioree
JP6607237B2 (ja) * 2017-08-21 2019-11-20 横浜ゴム株式会社 ゴム被覆撚線コードの製造方法および装置
JP6892374B2 (ja) * 2017-12-15 2021-06-23 株式会社ブリヂストン ゴム物品補強用スチールコード及びタイヤ
WO2019122720A1 (fr) 2017-12-19 2019-06-27 Compagnie Generale Des Etablissements Michelin Câbles multi-torons à deux couches à très bas, bas et moyen modules
US11458772B2 (en) 2017-12-19 2022-10-04 Compagnie Generale Des Etablissements Michelin Two-layer multi-strand cords having very low, low and medium moduli
US11401656B2 (en) * 2017-12-19 2022-08-02 Compagnie Generale Des Etablissments Michelin Two-layer multi-strand cords having very low, low and medium moduli
JP7278745B2 (ja) * 2018-10-30 2023-05-22 株式会社ブリヂストン エラストマー補強用コード
JP7278744B2 (ja) * 2018-10-30 2023-05-22 株式会社ブリヂストン エラストマー補強用コード
FR3115799B1 (fr) * 2020-11-05 2022-10-14 Michelin & Cie Câble multi-torons à deux couches avec couche interne gainée à pénétrabilité améliorée

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US20100170215A1 (en) 2010-07-08
CN101802297A (zh) 2010-08-11
WO2009011397A1 (ja) 2009-01-22
JPWO2009011397A1 (ja) 2010-09-24

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