FR3089873A3 - TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE - Google Patents

TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE Download PDF

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Publication number
FR3089873A3
FR3089873A3 FR1872949A FR1872949A FR3089873A3 FR 3089873 A3 FR3089873 A3 FR 3089873A3 FR 1872949 A FR1872949 A FR 1872949A FR 1872949 A FR1872949 A FR 1872949A FR 3089873 A3 FR3089873 A3 FR 3089873A3
Authority
FR
France
Prior art keywords
layer
improved
tire
resistance
elongation
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.)
Pending
Application number
FR1872949A
Other languages
French (fr)
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 FR1872949A priority Critical patent/FR3089873A3/en
Priority to FR1901065A priority patent/FR3089871A1/en
Priority to PCT/FR2019/050817 priority patent/WO2019197765A1/en
Publication of FR3089873A3 publication Critical patent/FR3089873A3/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60C9/1835—Rubber strips or cushions at the belt edges
    • B60C9/185—Rubber strips or cushions at the belt edges between adjacent or radially below the belt plies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L’invention concerne un pneumatique comprenant une armature de sommet formée d'au moins deux couches de sommet de travail d'éléments de renforcement et une couche d’éléments de renforcement métalliques circonférentiels, une couche S de mélange caoutchouteux étant au contact d’au moins une couche de sommet de travail et au contact de l’armature de carcasse, ladite couche S s’étendant axialement jusqu’au moins l’extrémité axiale de la bande de roulement. Selon l’invention, la valeur maximale de tan(δ), noté tan(δ)max, de la couche S est inférieure à 0.055, le module d’élasticité sous tension à 10 % d'allongement de la couche S est inférieure à 6 MPa et l’allongement à rupture de la couche S est supérieur à 300 %. Figure pour l’abrégé : Fig 1The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements and a layer of circumferential metallic reinforcing elements, a layer S of rubber mixture being in contact with at least one layer of working crown and in contact with the carcass reinforcement, said layer S extending axially up to at least the axial end of the tread. According to the invention, the maximum value of tan (δ), denoted tan (δ) max, of the layer S is less than 0.055, the elastic modulus under tension at 10% elongation of the layer S is less than 6 MPa and the elongation at break of the layer S is greater than 300%. Figure for the abstract: Fig 1

FR1872949A 2018-04-09 2018-12-14 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE Pending FR3089873A3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1872949A FR3089873A3 (en) 2018-12-14 2018-12-14 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE
FR1901065A FR3089871A1 (en) 2018-12-14 2019-02-04 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE
PCT/FR2019/050817 WO2019197765A1 (en) 2018-04-09 2019-04-08 Tire having improved rolling resistance and impact resistance properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1872949A FR3089873A3 (en) 2018-12-14 2018-12-14 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE

Publications (1)

Publication Number Publication Date
FR3089873A3 true FR3089873A3 (en) 2020-06-19

Family

ID=71088555

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1872949A Pending FR3089873A3 (en) 2018-04-09 2018-12-14 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE
FR1901065A Withdrawn FR3089871A1 (en) 2018-12-14 2019-02-04 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR1901065A Withdrawn FR3089871A1 (en) 2018-12-14 2019-02-04 TIRE HAVING IMPROVED ROLLING RESISTANCE AND IMPROVED IMPACT RESISTANCE

Country Status (1)

Country Link
FR (2) FR3089873A3 (en)

Also Published As

Publication number Publication date
FR3089871A1 (en) 2020-06-19

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