FR3129319B1 - Reinforced product with fixed cable geometry presenting intermediate bimodule behavior - Google Patents

Reinforced product with fixed cable geometry presenting intermediate bimodule behavior Download PDF

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Publication number
FR3129319B1
FR3129319B1 FR2112514A FR2112514A FR3129319B1 FR 3129319 B1 FR3129319 B1 FR 3129319B1 FR 2112514 A FR2112514 A FR 2112514A FR 2112514 A FR2112514 A FR 2112514A FR 3129319 B1 FR3129319 B1 FR 3129319B1
Authority
FR
France
Prior art keywords
diameter
reinforced product
metal
wires
emin
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.)
Active
Application number
FR2112514A
Other languages
French (fr)
Other versions
FR3129319A1 (en
Inventor
Lucas Lauby
Gaël Pataut
Olivier Reix
Sébastien Noel
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.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR2112514A priority Critical patent/FR3129319B1/en
Priority to PCT/FR2022/052126 priority patent/WO2023094750A1/en
Publication of FR3129319A1 publication Critical patent/FR3129319A1/en
Application granted granted Critical
Publication of FR3129319B1 publication Critical patent/FR3129319B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B60C2009/0092—Twist structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2061—Physical properties or dimensions of the belt coating rubber
    • B60C2009/2064—Modulus; Hardness; Loss modulus or "tangens delta"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2074—Physical properties or dimension of the belt cord
    • B60C2009/2077—Diameters of the cords; Linear density thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2074—Physical properties or dimension of the belt cord
    • B60C2009/2093—Elongation of the reinforcements at break point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2074—Physical properties or dimension of the belt cord
    • B60C2009/2096—Twist structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2006—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords consisting of steel cord plies only
    • 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
    • D07B2201/2022—Strands coreless
    • 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
    • D07B2401/2005—Elongation or elasticity
    • D07B2401/201—Elongation or elasticity regarding structural elongation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ropes Or Cables (AREA)

Abstract

L’invention concerne un produit renforcé (R1) comprenant une matrice polymérique (Ma) et au moins un câble (50) comprenant une unique couche constituée de N éléments de renforcements métalliques étant :- ou bien des fils métalliques (F) présentant un diamètre Df, avec les éléments de renforcement métalliques (54) présentant un diamètre Dh qui est le diamètre du cercle théorique passant par les centres des fils (F) de la couche dans un plan perpendiculaire à l’axe principal du câble et un diamètre D qui est le diamètre extérieur du câble (50); - ou bien des torons (T) enroulés en hélice autour d’un axe principal (A), chaque toron (T) comprenant une unique couche (56) constituée de M>1 de fils métalliques (FT) enroulés en hélice autour d’un axe (B) présentant un diamètre Df avec les éléments de renforcement métalliques (54) présentant un diamètre Dh qui est le diamètre du cercle théorique passant par les centres des fils (FT) de la couche (56) dans un plan perpendiculaire à l’axe principal du toron (T) et un diamètre D qui est le diamètre extérieur du toron (T) ;avec D, Dh et Df exprimés en millimètres :- 0,20 < Jr ≤ 0,30Avec Jr=N/(π x (D-Df)) x (Dh x Sin(π/N) – (Df / Cos(α x π/180))), α étant l’angle d’hélice, exprimé en degrés, de chaque fil métallique  ;- la matrice polymérique (Ma) présente un module élastique sécant MA10 à 10% de déformation allant de 2,5 à 18,0 MPa ;- le produit renforcé (R1) présente un rapport de module Emax sur Emin tel que 1< Emax/Emin <5  avec Emin étant le module élastique minimum sécant à partir de la courbe force-allongement avant le point d’allongement structural As et Emax étant le module maximum tangent de la même courbe force-allongement; et- le produit renforcé (R) présente un allongement structural As tel que 0< As < 3%. Figure pour l’abrégé : Fig 2The invention relates to a reinforced product (R1) comprising a polymer matrix (Ma) and at least one cable (50) comprising a single layer consisting of N metal reinforcement elements being: - or metal wires (F) having a diameter Df, with the metal reinforcing elements (54) having a diameter Dh which is the diameter of the theoretical circle passing through the centers of the wires (F) of the layer in a plane perpendicular to the main axis of the cable and a diameter D which is the outer diameter of the cable (50); - or strands (T) wound helically around a main axis (A), each strand (T) comprising a single layer (56) consisting of M>1 of metal wires (FT) wound helically around an axis (B) having a diameter Df with the metal reinforcing elements (54) having a diameter Dh which is the diameter of the theoretical circle passing through the centers of the wires (FT) of the layer (56) in a plane perpendicular to the main axis of the strand (T) and a diameter D which is the external diameter of the strand (T); with D, Dh and Df expressed in millimeters:- 0.20 < Jr ≤ 0.30 With Jr=N/(π x (D-Df)) x (Dh x Sin(π/N) – (Df / Cos(α x π/180))), α being the helix angle, expressed in degrees, of each metal wire ;- the polymer matrix (Ma) has a secant elastic modulus MA10 at 10% deformation ranging from 2.5 to 18.0 MPa; - the reinforced product (R1) has a modulus ratio Emax to Emin such that 1< Emax/Emin <5 with Emin being the minimum elastic modulus secant from the force-elongation curve before the point of structural elongation As and Emax being the maximum tangent modulus of the same force-elongation curve; and- the reinforced product (R) has a structural elongation As such that 0< As < 3%. Figure for abstract: Fig 2

FR2112514A 2021-11-25 2021-11-25 Reinforced product with fixed cable geometry presenting intermediate bimodule behavior Active FR3129319B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2112514A FR3129319B1 (en) 2021-11-25 2021-11-25 Reinforced product with fixed cable geometry presenting intermediate bimodule behavior
PCT/FR2022/052126 WO2023094750A1 (en) 2021-11-25 2022-11-18 Reinforced product with fixed cable geometry, having intermediate bi-modulus behaviour

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2112514A FR3129319B1 (en) 2021-11-25 2021-11-25 Reinforced product with fixed cable geometry presenting intermediate bimodule behavior
FR2112514 2021-11-25

Publications (2)

Publication Number Publication Date
FR3129319A1 FR3129319A1 (en) 2023-05-26
FR3129319B1 true FR3129319B1 (en) 2024-02-09

Family

ID=80999751

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2112514A Active FR3129319B1 (en) 2021-11-25 2021-11-25 Reinforced product with fixed cable geometry presenting intermediate bimodule behavior

Country Status (2)

Country Link
FR (1) FR3129319B1 (en)
WO (1) WO2023094750A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059188A (en) 1983-09-02 1985-04-05 ブリヂストン・ベカルト・スチ−ル・コ−ド株式会社 Steel cord for reinforcing rubber article
JPH0768673B2 (en) 1991-12-27 1995-07-26 トクセン工業株式会社 Steel cord for reinforcing rubber products
DE4314172C1 (en) 1993-04-29 1994-09-15 Witels App Masch Albert Gmbh Preform head for ropes and cable reinforcements
WO1999006628A1 (en) 1997-07-29 1999-02-11 N.V. Bekaert S.A. Steel cord for protection plies of pneumatic tyres
JP2016529410A (en) * 2013-08-01 2016-09-23 エヌ ヴイ べカルト エス エイ High elongation steel cord and pneumatic tire provided with this cord
FR3028873B1 (en) 2014-11-25 2016-12-23 Michelin & Cie FRACTIONAL INSTALLATION
FR3028872B1 (en) 2014-11-25 2017-05-19 Michelin & Cie FRACTIONATION METHOD
US11760128B2 (en) 2018-07-25 2023-09-19 Compagnie Generale Des Etablissements Michelin Highly compressible open cord
EP3826863B1 (en) * 2018-07-25 2022-05-18 Compagnie Generale Des Etablissements Michelin Bi-modulus metal cords
EP4076988A1 (en) * 2019-12-17 2022-10-26 Pirelli Tyre S.p.A. Metallic reinforcing cord for tyres for vehicle wheels
CN114929963B (en) 2020-01-07 2023-07-21 米其林集团总公司 Single ply multi-ply cord with improved breaking energy and improved total elongation

Also Published As

Publication number Publication date
FR3129319A1 (en) 2023-05-26
WO2023094750A1 (en) 2023-06-01

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