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FR3148165B1 - TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES - Google Patents

TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES Download PDF

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Publication number
FR3148165B1
FR3148165B1 FR2304282A FR2304282A FR3148165B1 FR 3148165 B1 FR3148165 B1 FR 3148165B1 FR 2304282 A FR2304282 A FR 2304282A FR 2304282 A FR2304282 A FR 2304282A FR 3148165 B1 FR3148165 B1 FR 3148165B1
Authority
FR
France
Prior art keywords
tread
tire
elastomeric compound
improved endurance
endurance properties
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
FR2304282A
Other languages
French (fr)
Other versions
FR3148165A1 (en
Inventor
Juliette Breha
Christine Nourry
Xavier Robin
Xavier Neau
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 FR2304282A priority Critical patent/FR3148165B1/en
Priority to PCT/EP2024/061085 priority patent/WO2024223562A1/en
Priority to CN202480027502.5A priority patent/CN121038975A/en
Publication of FR3148165A1 publication Critical patent/FR3148165A1/en
Application granted granted Critical
Publication of FR3148165B1 publication Critical patent/FR3148165B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B60C11/0058—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different cap rubber layers in the axial direction
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1307—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls
    • B60C11/1346—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove walls covered by a rubber different from the tread rubber
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/13—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
    • B60C11/1353—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom
    • B60C2011/1361—Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping with special features of the groove bottom with protrusions extending from the groove bottom

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L’invention concerne un pneumatique dont la bande de roulement présente au moins une rainure sur le fond de laquelle au moins une protubérance issue de matière est présente. Selon l’invention, la bande de roulement est constituée d’un premier mélange élastomérique et au moins une partie du fond de ladite au moins une rainure entourant les zones de jonction entre ladite au moins une protubérance et le fond de ladite au moins une rainure est constituée d’un deuxième mélange élastomérique sur une épaisseur d’au moins 1 mm, le deuxième mélange élastomérique présentant une résistance à la fatigue supérieure d’au moins 30 % à résistance à la fatigue du premier mélange élastomérique, mesurées à 23 °C jusqu’à un allongement de 108% selon la norme ISO 6943-2017. Figure pour l’abrégé : Fig 2The invention relates to a tire whose tread has at least one groove on the bottom of which at least one protrusion made of material is present. According to the invention, the tread is made of a first elastomeric compound and at least a portion of the bottom of said at least one groove surrounding the junction zones between said at least one protrusion and the bottom of said at least one groove is made of a second elastomeric compound over a thickness of at least 1 mm, the second elastomeric compound having a fatigue strength at least 30% higher than the fatigue strength of the first elastomeric compound, measured at 23°C up to an elongation of 108% according to ISO 6943-2017. Figure for abstract: Fig 2

FR2304282A 2023-04-27 2023-04-27 TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES Active FR3148165B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2304282A FR3148165B1 (en) 2023-04-27 2023-04-27 TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES
PCT/EP2024/061085 WO2024223562A1 (en) 2023-04-27 2024-04-23 Tyre in which the tread has improved endurance properties
CN202480027502.5A CN121038975A (en) 2023-04-27 2024-04-23 Tire with tread having improved endurance properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2304282 2023-04-27
FR2304282A FR3148165B1 (en) 2023-04-27 2023-04-27 TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES

Publications (2)

Publication Number Publication Date
FR3148165A1 FR3148165A1 (en) 2024-11-01
FR3148165B1 true FR3148165B1 (en) 2025-03-14

Family

ID=87747949

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2304282A Active FR3148165B1 (en) 2023-04-27 2023-04-27 TIRE WITH A TREAD WITH IMPROVED ENDURANCE PROPERTIES

Country Status (3)

Country Link
CN (1) CN121038975A (en)
FR (1) FR3148165B1 (en)
WO (1) WO2024223562A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU223429B1 (en) 1995-05-22 2004-07-28 Cabot Corporation Elastomeric compounds incorporating silicon-treated carbon blacks
FR2770458B1 (en) 1997-11-05 1999-12-03 Michelin & Cie SUMMIT FRAME FOR TIRE-HEAVY TIRE
DE69841286D1 (en) 1997-11-28 2009-12-24 Michelin & Cie Aluminum-containing reinforcing filler and rubber composition containing the same
AU1876199A (en) 1997-11-28 1999-06-16 Compagnie Generale Des Etablissements Michelin - Michelin & Cie Rubber composition for tyres, reinforced with a carbon black coated with an aluminous layer
BR0006169B1 (en) 1999-05-28 2009-05-05 rubber composition usable for the manufacture of tires, process for reinforcing a dienic rubber composition, rubber article, tire and tire tread.
AU2002210430A1 (en) 2000-07-31 2002-02-13 Michelin Recherche Et Technique S.A. Running tread for tyre
EP1597094B1 (en) 2003-02-17 2009-05-06 Société de Technologie Michelin Crown reinforcement for radial tyre
JP4512556B2 (en) * 2003-12-30 2010-07-28 ピレリ・タイヤ・ソチエタ・ペル・アツィオーニ Automotive tires
WO2010072234A1 (en) * 2008-12-23 2010-07-01 Pirelli Tyre S.P.A. Tire for vehicle wheels provided with tread band protected against groove anomalies
FR2950064B1 (en) * 2009-09-14 2011-10-14 Michelin Soc Tech RUBBER COMPOSITION COMPRISING A PHENOLIC RESIN

Also Published As

Publication number Publication date
WO2024223562A1 (en) 2024-10-31
CN121038975A (en) 2025-11-28
FR3148165A1 (en) 2024-11-01

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