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1. (WO2019008247) TYRE WITH A REDUCED-WEIGHT BEAD REGION
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Pub. No.: WO/2019/008247 International Application No.: PCT/FR2018/051480
Publication Date: 10.01.2019 International Filing Date: 20.06.2018
IPC:
B60C 15/00 (2006.01) ,B60C 15/024 (2006.01) ,B60C 9/02 (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
15
Tyre beads, e.g. ply turn-up or overlap
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
15
Tyre beads, e.g. ply turn-up or overlap
02
Seating or securing beads on rims
024
Bead contour, e.g. lips, grooves, or ribs
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
02
Carcasses
Applicants:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN [FR/FR]; 23 place des Carmes-Déchaux 63000 Clermont-Ferrand, FR
Inventors:
JOULIN, Emmanuel; FR
GUERBERT-JUBERT, Jean-Luc; FR
BESTGEN, Luc; FR
Agent:
LE CAM, Stéphane; FR
Priority Data:
17/5624103.07.2017FR
Title (EN) TYRE WITH A REDUCED-WEIGHT BEAD REGION
(FR) PNEUMATIQUE DONT LA ZONE DU BOURRELET EST ALLEGEE
Abstract:
(EN) The invention relates to a tyre with a radial carcass reinforcement formed by a single layer (2) of reinforcement elements, turned up around a bead wire such as to be anchored in each of the beads. According to the invention, the turned up portion (8) of the carcass reinforcement layer and the main portion (2) of the carcass reinforcement layer are the only layers of reinforcing elements present in the sidewall that have an elongation at break that is less than 6%; the turned up portion and the main portion are coupled and then separated, and any point of the profile of the outer surface S of the tyre, between the points F and E, is at a distance of less than 2.5 mm from the curve P defined by three arcs of circles connecting said first and second points F and E.
(FR) L'invention concerne un pneumatique à armature de carcasse radiale, constituée d'une unique couche (2) d'éléments de renforcement ancrée dans chacun des bourrelets par retournement autour d'une tringle. Selon l'invention, le retournement (8) de la couche d'armature de carcasse et la partie principale (2) de la couche d'armature de carcasse sont les seules couches d'éléments de renforcement dont l'allongement à rupture est inférieur à 6 % présentes dans le flanc, ledit retournement et la partie principale sont couplés puis découplés, et tout point du profil de la surface extérieure S du pneumatique entre les points F et E, est à une distance inférieure à 2.5 mm de la courbe P définie par trois arcs de cercles reliant lesdits premier et deuxième points F et E.
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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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)