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1. (WO2010115891) TYRE FOR HEAVY VEHICLES COMPRISING A LAYER OF PERIPHERAL REINFORCEMENT ELEMENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/115891 International Application No.: PCT/EP2010/054532
Publication Date: 14.10.2010 International Filing Date: 06.04.2010
IPC:
B60C 3/04 (2006.01) ,B60C 9/20 (2006.01) ,B60C 9/22 (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
3
Tyres characterised by transverse section
04
characterised by the relative dimensions of the section, e.g. low profile
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
20
built-up from rubberised plies each having all cords arranged substantially parallel
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
20
built-up from rubberised plies each having all cords arranged substantially parallel
22
the plies being arranged with all cords disposed along the circumference of the tyre
Applicants: DELEBECQ, Joël[FR/FR]; FR (UsOnly)
GODEAU, Gilles[FR/FR]; FR (UsOnly)
SOCIETE DE TECHNOLOGIE MICHELIN[FR/FR]; 23, rue Breschet F-63000 Clermont-Ferrand, FR (AllExceptUS)
Michelin Recherche et Technique S.A.[CH/CH]; Route Louis Braille 10 CH-1763 Granges-Paccot, CH (AllExceptUS)
Inventors: DELEBECQ, Joël; FR
GODEAU, Gilles; FR
Agent: LE CAM, Stéphane; Manufacture Française des Pneumatiques Michelin 23, place des Carmes-Déchaux SGD/LG/PI - F35 - Ladoux F-63040 Clermont-Ferrand Cedex 9, FR
Priority Data:
095226007.04.2009FR
Title (EN) TYRE FOR HEAVY VEHICLES COMPRISING A LAYER OF PERIPHERAL REINFORCEMENT ELEMENTS
(FR) PNEUMATIQUE POUR VÉHICULES LOURDS COMPORTANT UNE COUCHE D'ÉLÉMENTS DE RENFORCEMENT CIRCONFÉRENTIELS
Abstract:
(EN) The invention relates to a tyre comprising a radial carcass structure having a breaker structure formed from at least two working breaker layers (41, 43), the carcass structure itself being provided with a tread (5) connected to two beads by means of two flanks, and the apex structure comprising at least one layer of peripheral reinforcement elements (42). According to the invention, the ratio of the thickness (12) of the breaker block at one shoulder end to the thickness (15) of the breaker block in the peripheral median plane is higher than 1.20, and the ratio of the distance (16) between the maximum wear surface and the elements for reinforcing the layer of peripheral reinforcement elements in the peripheral median plane to the distance (17) between the maximum wear surface and the elements for reinforcing the layer of peripheral reinforcement elements at the ends of said layer of peripheral reinforcement elements is between 0.95 et 1.05.
(FR) L'invention concerne un pneumatique à armature de carcasse radiale comprenant une armature de sommet formée d'au moins deux couches de sommet de travail (41, 43), elle-même coiffée radialement d'une bande de roulement (5), ladite bande de roulement étant réunie à deux bourrelets par l'intermédiaire de deux flancs et l'armature de sommet comportant au moins une couche d'éléments de renforcement circonférentiels (42). Selon l'invention, le rapport de l'épaisseur (12) du bloc sommet à une extrémité d' épaulement sur l'épaisseur (15) du bloc sommet dans le plan médian circonférentiel est supérieur à 1,20 et le rapport de la distance (16) entre la surface d'usure limite et les éléments de renforcement de la couche d' éléments de renforcement circonférentiels dans le plan médian circonférentiel sur la distance (17) entre la surface d'usure limite et les éléments de renforcement de la couche d'éléments de renforcement circonférentiels aux extrémités de ladite couche d'éléments de renforcement circonférentiels est compris entre 0.95 et 1.05.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)