EP0125517A2 - Câblé de renforcement à fil de guipage - Google Patents

Câblé de renforcement à fil de guipage Download PDF

Info

Publication number
EP0125517A2
EP0125517A2 EP84104319A EP84104319A EP0125517A2 EP 0125517 A2 EP0125517 A2 EP 0125517A2 EP 84104319 A EP84104319 A EP 84104319A EP 84104319 A EP84104319 A EP 84104319A EP 0125517 A2 EP0125517 A2 EP 0125517A2
Authority
EP
European Patent Office
Prior art keywords
hardness
steel wires
loop wire
wire
reinforcing
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
EP84104319A
Other languages
German (de)
English (en)
Other versions
EP0125517A3 (en
EP0125517B1 (fr
Inventor
Wolfgang Dr. Weidenhaupt
Peter Dismon
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.)
Akzo GmbH
Original Assignee
Akzo GmbH
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 Akzo GmbH filed Critical Akzo GmbH
Priority to AT84104319T priority Critical patent/ATE32923T1/de
Publication of EP0125517A2 publication Critical patent/EP0125517A2/fr
Publication of EP0125517A3 publication Critical patent/EP0125517A3/de
Application granted granted Critical
Publication of EP0125517B1 publication Critical patent/EP0125517B1/fr
Expired legal-status Critical Current

Links

Images

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
    • D07B1/0606—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
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/102—Rope or cable structures characterised by their internal structure including a 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
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • D07B2201/2097—Binding wires
    • D07B2201/2098—Binding wires characterized by special properties or the arrangements of the binding wire
    • 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—Tyre cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/902—Reinforcing or tyre cords

Definitions

  • the invention relates to a reinforcing cord made of several metal wires for reinforcing elastomeric products, which is wound in a helical manner by at least one metal wrapping wire.
  • Such a reinforcement cord is known from DE-PS 803 801.
  • the loop wire fulfills the task of holding the cord bandage together and preventing the steel wires from splicing. However, the loop wire itself does not contribute to the overall tensile strength of the reinforcing cord. If such a cord is embedded in an elastomeric material, there is a risk of fretting corrosion when this material, for example a pneumatic vehicle tire, is loaded.
  • Fretting corrosion is one of the causes that reduce the life of reinforcing cords reinforced elastomeric products.
  • Fretting corrosion is always present when two metal surfaces are in contact, whereby these two metal surfaces are subject to a slight mutual displacement under load. Such a condition occurs between the metal wires of the reinforcing cord, which take up the load in the elastomeric product, and the looping wires under dynamic stress of the reinforced elastomeric product.
  • the object of the present invention is to provide a reinforcing cord of the type mentioned at the outset, in which the risk of fretting corrosion
  • reinforcing cord made of several steel wires for reinforcing elastomeric products, preferably pneumatic vehicle tires, which reinforcing cord is helically wrapped by at least one loop wire in that the hardness of the loop wire is significantly lower than the hardness of the steel wires.
  • the service life of pneumatic vehicle tires is significantly increased if the hardness of each loop wire is approximately 30 to 60%, preferably approximately 30 to 50%, of the hardness of the steel wires.
  • the hardness of the steel wires used for pneumatic tires for reinforcing cords is around 7800 to 9000 N / mm 2 H V.
  • the Vickers hardness is given here. It is determined according to DIN 50 133 sheet 2.
  • Such steel wires have tensile strengths that are between 2,600 to 3,000 N / mm 2 .
  • Steel wires with a higher tensile strength, for example 3,400 N / mm 2 have recently also been used. These steel wires then have a correspondingly higher hardness.
  • the loop wire should be one according to the invention
  • Such a loop wire then has a tensile strength that is between 900 and 1800 N / mm 2 , preferably up to 1500 N / mm 2 .
  • the hardness and the tensile strength can be adjusted in a known manner by selecting the type of steel (amount of carbon content, amount of alloy additives), reducing the pre-deformation or using a suitable post-heat treatment.
  • Another metallic material with corresponding hardness properties or tensile strengths can also be used for the wrapping wires.
  • a flat loop wire can also be used as the loop wire, by means of which, in addition to an increase in the resistance to the splice effect, a reduction in the overall diameter is achieved.
  • the lifespan of an elastomeric product containing reinforcing cords can be further increased in the above-described reinforcing cords by flattening the lower hardness of the wrapping wire and touching one of the broad sides of the wrapping wire or the wrapping wires with the steel wires of the reinforcing cords.
  • this flattened loop wire can be done either by twisting the loop wire around the rope or by laying the loop wire on the rope rotating around its own axis with the broad side.
  • the flattening of the loop wire can be accomplished by flat-rolling a wire with a round cross-section or by pulling it through a drawing die whose drawing hole has a rectangular cross-section can.
  • the risk of fretting corrosion can be reduced particularly advantageously if the ratio of the thickness to the width of the loop wire is between 0.4 and 0.7, better still between 0.5 and 0.6.
  • d means the diameter of the steel wires, which is between 0.15 and 0.25 mm for conventional reinforcing cords.
  • U is the looping wire or the looping wires, which in the embodiment have the usual round cross section and have a diameter of 0.12 or 0.15 mm.
  • this invention is not limited to the specified diameters of the metal wires or the wrapping wires.
  • the loop wires can advantageously have a flattened cross section, the ratio of the thickness to the width of the cross section advantageously being between 0.4 and 0.7, or better between 0.5 and 0.6, and the cross-sectional area of the flattened loop wire being approximately the same as the cross-sectional area of the wire used for flattening has a round cross-section and is preferably approximately 0.01 to 0.02 mm 2 .
  • the lay length of the round as well as the flat loop wires is advantageously 2.5 to 5 mm.
  • the reinforcing cords equipped with such wrapping wires are advantageously used in the carcass in pneumatic vehicle tires.
  • the metal wires for reinforcing cords according to the invention also consist of a carbon alloy steel wire.
  • the steel wires must bond well with the elastomeric material.
  • the steel wires are coated with a second material, plastic or another material, with the steel wire and the coating material on the one hand and the coating material and the elastomeric material on the other good binding tendency must be present.
  • Steel wires coated with brass are preferred.
  • the compression modulus is determined in the following way: A reinforcing cord or rope is embedded in an elastomeric material with defined properties. During the embedding, the elastomeric material is formed into a cylindrical sample, the cross section of which is circular, and in whose axis the reinforcement cord or the reinforcement cable is arranged and embedded. The sample has a defined length and a defined diameter. The maximum possible load is determined by the pressure load on the two (circular) end faces. As a rule, the maximum possible load is reached when the sample bends sideways.
  • the reinforcing cords according to the invention are preferably used in the manufacture of pneumatic vehicle tires, in particular pneumatic tires for trucks or earthmoving machines.

Landscapes

  • Ropes Or Cables (AREA)
  • Tires In General (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Tyre Moulding (AREA)
EP84104319A 1983-05-16 1984-04-17 Câblé de renforcement à fil de guipage Expired EP0125517B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104319T ATE32923T1 (de) 1983-05-16 1984-04-17 Verstaerkungscord mit umschlingungsdraht.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3317744A DE3317744C2 (de) 1983-05-16 1983-05-16 Verstärkungscord mit Umschlingungsdraht
DE3317744 1983-05-16

Publications (3)

Publication Number Publication Date
EP0125517A2 true EP0125517A2 (fr) 1984-11-21
EP0125517A3 EP0125517A3 (en) 1985-10-09
EP0125517B1 EP0125517B1 (fr) 1988-03-09

Family

ID=6199073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104319A Expired EP0125517B1 (fr) 1983-05-16 1984-04-17 Câblé de renforcement à fil de guipage

Country Status (6)

Country Link
US (1) US4679387A (fr)
EP (1) EP0125517B1 (fr)
JP (1) JPS6034689A (fr)
AT (1) ATE32923T1 (fr)
CA (1) CA1246945A (fr)
DE (2) DE3317744C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264145A1 (fr) * 1986-10-13 1988-04-20 N.V. Bekaert S.A. Câble plat pour le renforcement de pneumatiques
FR2635541A1 (fr) * 1988-08-19 1990-02-23 Sp Reifenwerke Gmbh Cable d'acier destine a renforcer des produits elastomeres

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663187B2 (ja) * 1985-12-23 1994-08-17 東京製鋼株式会社 可塑物補強用スチ−ルコ−ド
US4744805A (en) * 1986-05-22 1988-05-17 Air Products And Chemicals, Inc. Selective adsorption process using an oxidized ion-exchanged dehydrated chabizite adsorbent
US4747854A (en) * 1986-05-22 1988-05-31 Air Products And Chemicals, Inc. Selective chromatographic process using an ion-exchanged, dehydrated chabazite adsorbent
DE3866019D1 (de) * 1987-05-20 1991-12-12 Bekaert Sa Nv Zwischenbeschichtung von stahldraht.
US5082713A (en) * 1990-07-23 1992-01-21 Pirelli Armstrong Tire Corporation Wide monofilament reinforcing cords employing high performance thermoplastics and tire belts made therefrom
JP2746764B2 (ja) * 1991-02-20 1998-05-06 不二精工株式会社 ビードワイヤ
JPH05106179A (ja) * 1991-07-19 1993-04-27 Tokyo Seiko Co Ltd 可塑物補強用高抗張力スチールコード
DE4212846C2 (de) * 1992-04-16 1997-08-14 Sp Reifenwerke Gmbh Verstärkungscord für elastomere Erzeugnisse
US6019736A (en) * 1995-11-06 2000-02-01 Francisco J. Avellanet Guidewire for catheter
US5994647A (en) 1997-05-02 1999-11-30 General Science And Technology Corp. Electrical cables having low resistance and methods of making same
US6313409B1 (en) 1997-05-02 2001-11-06 General Science And Technology Corp Electrical conductors and methods of making same
US6137060A (en) * 1997-05-02 2000-10-24 General Science And Technology Corp Multifilament drawn radiopaque highly elastic cables and methods of making the same
US6215073B1 (en) 1997-05-02 2001-04-10 General Science And Technology Corp Multifilament nickel-titanium alloy drawn superelastic wire
US6399886B1 (en) 1997-05-02 2002-06-04 General Science & Technology Corp. Multifilament drawn radiopaque high elastic cables and methods of making the same
US6449834B1 (en) * 1997-05-02 2002-09-17 Scilogy Corp. Electrical conductor coils and methods of making same
US6049042A (en) * 1997-05-02 2000-04-11 Avellanet; Francisco J. Electrical cables and methods of making same
US6763875B2 (en) * 2002-02-06 2004-07-20 Andersen Corporation Reduced visibility insect screen
US20050098277A1 (en) * 2002-02-06 2005-05-12 Alex Bredemus Reduced visibility insect screen
US7250213B2 (en) * 2003-10-16 2007-07-31 American Wire Tie Inc. Textured wire tie and methods of making same
JP4776455B2 (ja) * 2006-06-29 2011-09-21 株式会社ブリヂストン 重荷重用空気入りラジアルタイヤ
US8110050B2 (en) * 2007-05-16 2012-02-07 Thyssenkrupp Elevator Capital Corporation Actively damped tension member
USD774879S1 (en) * 2008-10-08 2016-12-27 Nite Ize, Inc. Tie wrap for bundling objects
US8387216B1 (en) 2008-10-08 2013-03-05 Nite Ize, Inc. Tie wrap for bundling objects
US8806723B2 (en) 2008-10-08 2014-08-19 Nite Ize, Inc. Tie wrap for bundling objects
US9174781B2 (en) * 2008-10-08 2015-11-03 Nite Ize, Inc. Tie wrap for bundling objects
USD863946S1 (en) 2008-10-08 2019-10-22 Nite Ize, Inc. Tie
USD863945S1 (en) 2008-10-08 2019-10-22 Nite Ize, Inc. Tie
USD616292S1 (en) * 2008-12-16 2010-05-25 Martinson Daniel J Twist tie
CN102009570B (zh) * 2009-09-04 2014-02-26 青岛双星轮胎工业有限公司 一种用于轮胎的钢丝圈
USD745866S1 (en) 2011-08-02 2015-12-22 Nite Ize, Inc. Cantilevered snap fit case
USD714278S1 (en) 2013-07-29 2014-09-30 Nite Ize, Inc. Mobile phone case
US20220169078A1 (en) * 2019-04-17 2022-06-02 Pirelli Tyre S.P.A. Hybrid cord and tyre with such cord

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE369285A (fr) *
US1611145A (en) * 1926-12-14 Standard
BE373928A (fr) *
US1767772A (en) * 1929-03-13 1930-06-24 Nat Standard Co Tire-bead reenforcing element
FR731314A (fr) * 1932-02-12 1932-09-01 Trefilerie Et Cablerie J Wurth Perfectionnements dans la fabrication des tringles d'acier pour enveloppes de pneumatiques d'automobiles
BE486708A (fr) * 1948-12-27
BE654920A (fr) * 1964-10-28 1965-02-15
BE764149A (fr) * 1970-03-18 1971-08-02 Pirelli Procede de fabrication de cordes metalliques particulierement appropriees aux structures de renforcement pour pneumatiques
US3813772A (en) * 1970-06-30 1974-06-04 Reynolds Metals Co Method of forming steel supported aluminum overhead conductors
US3831370A (en) * 1971-12-01 1974-08-27 American Chain & Cable Co Safety belt system
GB1408921A (en) * 1972-01-28 1975-10-08 Post Office Wire ropes and communication cables
DE2263951A1 (de) * 1972-12-29 1974-07-04 Hendrix Hans Dr Mit polyamid ummantelter stahldraht fuer reifenkord und gewebe
ZA743459B (en) * 1973-06-09 1975-10-29 Dunlop Ltd Bead coils
JPS604312B2 (ja) * 1973-07-17 1985-02-02 住友電気工業株式会社 補強用スチ−ルコ−ド
JPS5686802A (en) * 1979-12-18 1981-07-15 Bridgestone Corp Pneumatic radial tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264145A1 (fr) * 1986-10-13 1988-04-20 N.V. Bekaert S.A. Câble plat pour le renforcement de pneumatiques
FR2635541A1 (fr) * 1988-08-19 1990-02-23 Sp Reifenwerke Gmbh Cable d'acier destine a renforcer des produits elastomeres

Also Published As

Publication number Publication date
EP0125517A3 (en) 1985-10-09
EP0125517B1 (fr) 1988-03-09
US4679387A (en) 1987-07-14
ATE32923T1 (de) 1988-03-15
JPS6034689A (ja) 1985-02-22
DE3317744A1 (de) 1984-11-22
DE3317744C2 (de) 1985-08-22
CA1246945A (fr) 1988-12-20
DE3469769D1 (en) 1988-04-14

Similar Documents

Publication Publication Date Title
DE3317744C2 (de) Verstärkungscord mit Umschlingungsdraht
EP0125518B1 (fr) Câblé pour le renforcement d'articles élastomères
DE69811271T2 (de) Stahlseil mit gewellten elementen
DE69318582T2 (de) Stahlseil
DE2619086C2 (de) Verstärkungsseil für Elastomererzeugnisse, Verfahren und Vorrichtung zur Herstellung
DE68905155T2 (de) Stahlkabel zum verstaerken von kautschuk.
DE803800C (de) Drahtkabel fuer metallische Einlagen von Luftreifen
DE3131606A1 (de) Verbundmaterial aus kautschuk mit darin eingebettetem metallcord und dessen verwendung
DE2829205A1 (de) Metallseil
DE3650168T2 (de) Stahlkabel zur Verstärkung elastomerer Erzeugnisse.
DE2943830A1 (de) Metallschnur
DE68910294T2 (de) Verbundstahlkord.
EP0126965A2 (fr) Câble de renforcement composé d'au moins deux composants
EP0092696B1 (fr) Câblé de renforcement pour produits en caoutchouc
DE3129963A1 (de) Metallkorde zum verstaerken von elastomeren gegenstaenden
DE2223981B2 (de) Stahlseil zur verwendung als verstaerkung in kautschukgegenstaenden
DE3635298A1 (de) Luftreifen mit flachcorden bzw. flachcord
DE69032298T2 (de) Stahlseil zur Verstärkung von elastomeren Erzeugnissen
DE69503676T2 (de) Verstärkung für Fahrzeugreifen
DE69609041T2 (de) Stahlseile zur Verstärkung von Gummiartikeln und solche Stahlseile aufweisender radialer Luftreifen
DE69516238T2 (de) Stahlseil zur Verstärkung elastomerer Erzeugnisse
DE4200736A1 (de) Verstaerkter antriebsriemen
DE8414361U1 (de) Drahtseilkonstruktion fuer elastomere erzeugnisse
DE2842296A1 (de) Verstaerkungsmaterial und -verfahren fuer federnde gegenstaende
EP0125505A2 (fr) Câblé de renforcement en acier pour produits élastomères

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19851021

17Q First examination report despatched

Effective date: 19861024

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU SE

REF Corresponds to:

Ref document number: 32923

Country of ref document: AT

Date of ref document: 19880315

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3469769

Country of ref document: DE

Date of ref document: 19880414

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880430

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19900223

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900323

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900331

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900412

Year of fee payment: 7

Ref country code: AT

Payment date: 19900412

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900417

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900613

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910417

Ref country code: AT

Effective date: 19910417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19910430

BERE Be: lapsed

Owner name: AKZO G.M.B.H.

Effective date: 19910430

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 84104319.3

Effective date: 19911108