WO2012007234A1 - Câble en acier destiné au renforcement d'une nappe de ceinture d'un pneumatique de véhicule - Google Patents

Câble en acier destiné au renforcement d'une nappe de ceinture d'un pneumatique de véhicule Download PDF

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Publication number
WO2012007234A1
WO2012007234A1 PCT/EP2011/059549 EP2011059549W WO2012007234A1 WO 2012007234 A1 WO2012007234 A1 WO 2012007234A1 EP 2011059549 W EP2011059549 W EP 2011059549W WO 2012007234 A1 WO2012007234 A1 WO 2012007234A1
Authority
WO
WIPO (PCT)
Prior art keywords
diameter
steel cord
outer filaments
filaments
belt
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.)
Ceased
Application number
PCT/EP2011/059549
Other languages
German (de)
English (en)
Inventor
Volkmar Fries
Jörn KRÜGER
Sadettin Fidan
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.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland 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 Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of WO2012007234A1 publication Critical patent/WO2012007234A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand 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
    • D07B1/064—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration the reinforcing cords being twisted and with at least one wire exchanging place with another wire
    • 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
    • D07B2201/2001—Wires or filaments
    • D07B2201/2006—Wires or filaments characterised by a value or range of the dimension given
    • 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
    • D07B2201/2029—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
    • D07B2201/2038—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
    • D07B2201/2047—Cores
    • D07B2201/2051—Cores characterised by a value or range of the dimension given
    • 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
    • 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
    • D07B2401/208—Enabling filler penetration
    • 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

Definitions

  • Steel cord for use as a strength carrier in a belt layer of a
  • the invention relates to a two-ply steel cord of construction 1 + N with N greater than 3 for use as a strength member in a belt ply of a pneumatic vehicle tire, the outer filaments contacting the single inner filament.
  • Steel cords for belt plies usually have a multilayer construction of inner and outer steel filaments, with high stability of the steel cord against displacement of its filaments and good adhesion in the surrounding rubberizing composition being important for the durability and service life of the belt plies.
  • the cost of producing the steel cords also play a role, the more expensive the cord construction, the higher the manufacturing costs.
  • Target conflicts exist in particular between the determined by tread abrasion life of a pneumatic vehicle tire - the abrasion life -, the belt edge durability and the manufacturing cost of the belt package, which is mainly determined by the manufacturing cost of steel cords. If one of these parameters or one of these
  • the stiffness of the belt package such as the use of stiffer steel cords or by increasing the steel cord density in the belt layers, increases the abrasion life of the tire.
  • a lower steel cord density in the belt layers improves the belt durability.
  • larger diameter cords can provide a lower tensile strength
  • Two-ply steel cords are known in various embodiments from the prior art.
  • a steel cord for the belt layers of a pneumatic vehicle tire which has a single inner filament with a diameter of 0.12 mm to 0.22 mm and at least three outer filaments with a diameter of 0.28 highest mm.
  • This is an open cord construction in which the outer filaments touch the inner filament but are at a certain distance from each other.
  • the use of such steel cords in the belt layers of pneumatic vehicle tires is intended to reduce the rolling resistance of the tire.
  • Another steel cord with an open construction is from the
  • the steel cord has a single inner filament whose diameter is between 0.17 mm and 0.38 mm and which of six
  • the steel filaments Surrounded by steel filaments whose diameter deviates by at most 0.5 mm from that of the inner filament.
  • the steel filaments should have a tensile strength of at least 2850 N / mm 2 . This known cord should be particularly resistant to corrosion. Due to the small differences in the diameter of the inner and outer filaments, the six outer filaments almost completely surround the inner filament
  • the pre-deformation suffers from the compactness of the steel cord, the larger diameter of the steel cord reduces the mutual cord spacing with the same cord density in the belt ply, which, as explained above, is detrimental to the belt durability as well as the thickness of the belt plies, thereby increasing the required volume Gum mixture and therefore the cost is increased.
  • JP 60038208 A Another two-layer steel cord construction is known from JP 60038208 A. This document relates to a 1 + 5 cord construction with a maximum
  • Multilayer steel cord constructions with two or more filaments in the first layer are also known in different embodiments. The most of
  • Belt cords of these constructions have cross-sectional areas greater than 0.5 mm 2 and are 2- or 3-ply cords with two to four filaments in the first ply. Apart from the more expensive cord production, which is associated with higher costs, these belt cords have a relatively low compactness and low rigidity at a given cord diameter. This affects the abrasion life and conflicts with belt edge durability.
  • the invention has for its object to improve a steel cord of the type mentioned for use as Gürtelkord in belt layers of commercial vehicle tires, so that the mentioned goal conflicts between Abrieblebensdauer, belt edge durability and manufacturing costs are eliminated.
  • the object is achieved according to the invention in that the inner filament has a diameter between 0.30 mm and 0.45 mm and the outer filaments have a diameter between 0.35 mm and 0.50 mm, wherein the ratio of the diameter of the inner filament to the diameter of the outer filaments between 0.7 and 1.1 and the number of outer filaments between four and six.
  • the diameter of the filaments and the number of outer filaments are optimally matched to one another, that a good penetration of the rubber material of the belt layer is ensured in the spaces between the outer filaments and thus the inner filament is fixed against displacement.
  • Steel cords according to the invention have a cord diameter which allows to place the steel cords in the belt ply at mutual distances which are advantageous for belt edge durability. At the same time can be with
  • Steel cords according to the invention achieve a rigidity of the belt plies or of the belt package, which is advantageous for the abrasion service life.
  • steel cords designed according to the invention are designed such that the openness is between 10% and 25%.
  • the diameter of the inner filament is between 0.35 mm and 0.42 mm and the diameter of the outer filaments is between 0.38 mm and 0.45 mm. In this context, it is also particularly advantageous if the ratio of
  • Fig. 1 shows a cross section through a steel cord designed according to the invention.
  • Cords made according to the invention are of the type 1 + N, where N is between four and six.
  • the steel cord exemplified in Fig. 1 has the construction 1 + 5 and therefore consists in the first layer of a single inner filament 1 and five outer filaments 2 in contact with its outer side in the second layer.
  • the outer filaments 2 are twisted together in a known manner about their longitudinal axis and around the inner filament 1.
  • the filaments 1 and 2 can be considered in cross-section as circles, wherein the diameter Di of the inner filament 1 between 0.30 mm and 0.45 mm, the same for all outer filaments 2 diameter D of the outer filaments 2 between 0.35 mm and 0.50 mm.
  • the diameter Di of the inner filament 1 is in particular between 0.35 mm and 0.42 mm, the diameter D N of the outer filaments 2 in particular between 0.38 mm and 0.45 mm.
  • Steel cords designed according to the invention are designed such that the ratio of the diameter Di of the inner filament 1 to the diameter D of the outer filaments 2 is between 0.7 and 1.1, in particular between 0.8 and 1.0.
  • the steel cord has an open construction in which the outer filaments 2, while in contact with the inner filament 1, but at least partially do not touch each other. Therefore, the outer filaments 2 may all be spaced apart from each other, however, some, for example, two or three outer filaments 2 may contact each other. As the figure shows, the mutual distances A N i to A N5 of
  • Filaments 2 - determined in those places where the mutual distance of each other adjacent outer filaments 2 is the lowest - be different sizes.
  • Straight lines drawn at the least spaced locations are, viewed in cross-section, chords of a circle of diameter D o , which is given by the equation below
  • the average distance A M (arithmetic mean) of the outer filaments 2, the average chord length at the circle with the diameter Do, can be determined according to equation II:
  • Steel cords designed according to the invention are designed such that O is between 10% and 25%. With an openness O smaller than 10% is sufficient
  • Steel cords designed according to the invention are primarily suitable as reinforcements in belt layers of pneumatic vehicle tires, in particular belt layers of commercial vehicle tires.
  • the steel cords aligned in parallel with each other and arranged at a predetermined mutual distance become one
  • Both the inner filament 1 and the outer filaments 2 are steel filaments with conventional tensile strengths of at least 2800 N / mm 2 (normal Tensile- execution) up to 4100 N / mm 2 (Ultra High Tensile- execution).

Landscapes

  • Ropes Or Cables (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne un câble en acier de conception 1+N, N étant supérieure à 3, destiné à servir de support de renforcement dans une ceinture d'un pneumatique de véhicule, les filaments externes (2) étant en contact avec l'unique filament interne (1). Selon l'invention, le filament interne (1) a un diamètre (D1) de 0,30 mm à 0,45 mm et les filaments externes (2) ont un diamètre (DN) de 0,35 mm à 0,50 mm, le rapport entre le diamètre du filament interne (1) et le diamètre des filaments externes (2) variant entre 0,7 et 1,1 et le nombre des filaments externes (2) étant de quatre à six.
PCT/EP2011/059549 2010-07-12 2011-06-09 Câble en acier destiné au renforcement d'une nappe de ceinture d'un pneumatique de véhicule Ceased WO2012007234A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010036345 2010-07-12
DE102010036345.6 2010-07-12
DE102010036809.1 2010-08-03
DE201010036809 DE102010036809A1 (de) 2010-07-12 2010-08-03 Stahlkord zur Verwendung als Festigkeitsträger in einer Gürtellage eines Fahrzeugluftreifens

Publications (1)

Publication Number Publication Date
WO2012007234A1 true WO2012007234A1 (fr) 2012-01-19

Family

ID=44627106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/059549 Ceased WO2012007234A1 (fr) 2010-07-12 2011-06-09 Câble en acier destiné au renforcement d'une nappe de ceinture d'un pneumatique de véhicule

Country Status (2)

Country Link
DE (1) DE102010036809A1 (fr)
WO (1) WO2012007234A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113123149A (zh) * 2021-04-22 2021-07-16 江苏兴达钢帘线股份有限公司 一种具有渗胶结构的钢帘线及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014226116A1 (de) 2014-12-16 2016-06-16 Continental Reifen Deutschland Gmbh Stahlkord als Festigkeitsträger in einer Gürtellage eines Fahrzeugluftreifens und seine Verwendung
DE102014226119B4 (de) 2014-12-16 2025-06-26 Continental Reifen Deutschland Gmbh Gürtellage für einen Fahrzeugreifen

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006488A1 (de) 1980-02-21 1981-08-27 Uniroyal Englebert Reifen GmbH, 5100 Aachen Fahrzeugluftreifen
JPS6038208A (ja) 1983-08-12 1985-02-27 Toyo Tire & Rubber Co Ltd 大型空気タイヤ
EP0250010A1 (fr) * 1986-06-19 1987-12-23 N.V. Bekaert S.A. Fil d'armature pour articles en matériaux polymères et articles en polymère comportant de tels fils
WO1989009305A1 (fr) 1988-03-25 1989-10-05 N.V. Bekaert S.A. Structure a carcasse metalique ouverte
DE8004636U1 (de) * 1980-02-21 1990-03-29 Uniroyal Englebert Reifen GmbH, 5100 Aachen Fahrzeugluftreifen
JPH02229287A (ja) * 1989-02-25 1990-09-12 Sumitomo Rubber Ind Ltd スチールコード
JPH07229076A (ja) * 1994-02-10 1995-08-29 Tokyo Seiko Co Ltd ゴム補強用スチールコード
US5512380A (en) * 1993-07-20 1996-04-30 N. V. Bekaert S.A. Steel cord construction
US5584169A (en) 1992-01-09 1996-12-17 Bridgestone Corporation Steel cord
US5606852A (en) 1993-04-09 1997-03-04 Bridgestone Corporation Waved-shaped, curled steel cord for reinforcing rubber articles and pneumatic radial tire using the same
JPH09226318A (ja) * 1996-02-23 1997-09-02 Bridgestone Corp 悪路走行用空気入りラジアルタイヤ
JP2001329476A (ja) * 2000-05-15 2001-11-27 Tokyo Seiko Co Ltd スチールコードおよびそのスチールコードを用いたタイヤ

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006488A1 (de) 1980-02-21 1981-08-27 Uniroyal Englebert Reifen GmbH, 5100 Aachen Fahrzeugluftreifen
DE8004636U1 (de) * 1980-02-21 1990-03-29 Uniroyal Englebert Reifen GmbH, 5100 Aachen Fahrzeugluftreifen
JPS6038208A (ja) 1983-08-12 1985-02-27 Toyo Tire & Rubber Co Ltd 大型空気タイヤ
EP0250010A1 (fr) * 1986-06-19 1987-12-23 N.V. Bekaert S.A. Fil d'armature pour articles en matériaux polymères et articles en polymère comportant de tels fils
WO1989009305A1 (fr) 1988-03-25 1989-10-05 N.V. Bekaert S.A. Structure a carcasse metalique ouverte
JPH02229287A (ja) * 1989-02-25 1990-09-12 Sumitomo Rubber Ind Ltd スチールコード
US5584169A (en) 1992-01-09 1996-12-17 Bridgestone Corporation Steel cord
US5606852A (en) 1993-04-09 1997-03-04 Bridgestone Corporation Waved-shaped, curled steel cord for reinforcing rubber articles and pneumatic radial tire using the same
US5512380A (en) * 1993-07-20 1996-04-30 N. V. Bekaert S.A. Steel cord construction
JPH07229076A (ja) * 1994-02-10 1995-08-29 Tokyo Seiko Co Ltd ゴム補強用スチールコード
JPH09226318A (ja) * 1996-02-23 1997-09-02 Bridgestone Corp 悪路走行用空気入りラジアルタイヤ
JP2001329476A (ja) * 2000-05-15 2001-11-27 Tokyo Seiko Co Ltd スチールコードおよびそのスチールコードを用いたタイヤ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Micro-alloyed steel cord constructions for tyres", RESEARCH DISCLOSURE, MASON PUBLICATIONS, HAMPSHIRE, GB, vol. 349, no. 84, 1 May 1993 (1993-05-01), XP007119044, ISSN: 0374-4353 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113123149A (zh) * 2021-04-22 2021-07-16 江苏兴达钢帘线股份有限公司 一种具有渗胶结构的钢帘线及其制备方法

Also Published As

Publication number Publication date
DE102010036809A1 (de) 2012-01-12

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