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1. (WO2020002785) PNEUMATIC TIRE WITH OPTIMIZED CROWN-AND-TREAD-PATTERN ARCHITECTURE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2020/002785 International Application No.: PCT/FR2019/051165
Publication Date: 02.01.2020 International Filing Date: 22.05.2019
IPC:
B60C 11/00 (2006.01) ,B60C 9/28 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
11
Tyre tread bands; Tread patterns; Anti-skid inserts
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
C
VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
9
Reinforcements or ply arrangement of pneumatic tyres
18
Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
28
characterised by the belt or breaker dimensions or curvature relative to carcass
Applicants:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN [FR/FR]; 23, Place des Carmes-Déchaux 63000 CLERMONT-FERRAND, FR
Inventors:
BRUNEAU, François-Xavier; FR
ALBOUY, Mathieu; FR
FABING, Daniel; FR
FRAYSSE, Patrice; FR
TOURNEUX, Vincent; FR
Agent:
MILLANVOIS, Patrick; FR
Priority Data:
185563225.06.2018FR
Title (EN) PNEUMATIC TIRE WITH OPTIMIZED CROWN-AND-TREAD-PATTERN ARCHITECTURE
(FR) PNEUMATIQUE A ARCHITECTURE SOMMET ET SCULPTURE OPTIMISEE
Abstract:
(EN) The invention relates to a pneumatic tire comprising a crown having at least one layer of reinforcing elements. The radially outermost layer includes at least one wave (512). The waves (512) of the radially outermost layer (5) are such that, for each meridian, radially inward from the center of the bottom surface (243) of the closest main groove (24), the points of the waves lie radially outside the points of said layer (5) by at least a radial distance of 1.5 mm. The waves (512) of the radially outermost crown layer constitute at least 10% of the radially outer surface (SRE) of said crown layer (5). A rubber compound having a maximum dynamic shear modulus G *, measured at 40°C at 10% peak-to-peak deformation at 10 Hz, of 3.25 MPa, constitutes at least 30% of the rubber compounds lying on top of said waves.
(FR) L'invention est un pneumatique comprenant un sommet comprenant au moins une couche d'éléments de renforcement. Lacouche laplus radialement extérieure, comprendau moins une ondulation (512). Les ondulations (512) de la couche (5) la plus radialement extérieure sont tellesque les points des ondulations sontradialement extérieursaux points de ladite couche (5) à l'aplomb du centre de la face de fond (243) de la rainure majeure (24) la plus proched'au moins une distance radiale de 1.5 mm. Les ondulations (512) de la couche de sommet la plus radialement extérieure constituentau moins 10% de la surface radialement extérieure (SRE) de ladite couche de sommet (5).Un composé caoutchouteux d'un module dynamique G*, mesuré à 40° C à 10% de déformation crête à crête à 10Hz, au plus égal à 3,25 MPa,compose au moins 30% des composés caoutchouteux en surplomb desdites ondulations.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)