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1. (WO2017174916) HEAVY-DUTY VEHICLE TYRE
PCT Biblio. Data
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Pub. No.:
WO/2017/174916
International Application No.:
PCT/FR2017/050782
Publication Date:
12.10.2017
International Filing Date:
04.04.2017
IPC:
B60C 11/03
(2006.01),
B60C 11/13
(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
03
Tread patterns
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
03
Tread patterns
13
characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
Applicants:
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
[FR/FR]; 12 Cours Sablon 63000 CLERMONT-FERRAND (FR)
Inventors:
MANSUY, Philippe
; (FR)
Agent:
MILLANVOIS, Patrick
; (FR)
Priority Data:
16/53106
08.04.2016
FR
Title
(EN)
HEAVY-DUTY VEHICLE TYRE
(FR)
PNEUMATIQUE POUR VÉHICULE LOURD
Abstract:
(EN)
A tread (2) for a radial tyre of a heavy-duty civil engineering vehicle for use in mines, characterised by alternating full-load running on an uphill slope and emtpy-load running on a downhill slope, the tread (2) having a total width (W
T
) and comprising a first median portion (21) with a median width (W
c
) equal to at least 20% and at most 50% of the total width (W
T
), axially delimited by a second and a third lateral portion (22, 23), respectively, that have a lateral width (W
S2
, W
S3
) equal to at least 25% and at most 40% of the total width (W
T
), respectively, wherein the angle of the leading face (51) of any relief element (31) in the first median portion (21) is strictly less than the angle of the trailing face (61) of said relief element (31), and the angle of the leading face (52, 53) of any relief element (32, 33) in each of the second and third lateral portions (22, 23) is strictly greater than the angle of the trailing face (62, 63) of said relief element (32, 33).
(FR)
Bande de roulement (2) d'un pneumatique radial pour un véhicule lourd de type génie civil destiné à un usage mines, caractérisé par une alternance de roulages en charge sur une pente ascendante et à vide sur une pente descendante, la bande de roulement (2) ayant une largeur totale (W
T
) et comprenant une première portion médiane (21) ayant une largeur médiane (W
c
) au moins égale à 20% et au plus égale à 50% de la largeur totale (W
T
), axialement délimitée par respectivement une deuxième et une troisième portions latérales (22, 23), ayant respectivement une largeur latérale (W
S2
, W
S3
) au moins égale à 25% et au plus égale à 40% de la largeur totale (W
T
), l'angle de la face d'attaque (51) de tout élément en relief (31) de la première portion médiane (21) est strictement inférieur à l'angle de la face de fuite (61) dudit élément en relief (31) et l'angle de la face d'attaque (52, 53) de tout élément en relief (32, 33) de chacune des deuxième et troisième portions latérales (22, 23) est strictement supérieur à l'angle de la face de fuite (62, 63) dudit élément en relief (32, 33).
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, 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 (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
)