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1. (WO2017156737) A M+N STEEL CORD FOR REINFORCING RUBBER PRODUCT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/156737 International Application No.: PCT/CN2016/076572
Publication Date: 21.09.2017 International Filing Date: 17.03.2016
IPC:
D07B 1/06 (2006.01) ,D02G 3/48 (2006.01)
D TEXTILES; PAPER
07
ROPES; CABLES OTHER THAN ELECTRIC
B
ROPES OR CABLES IN GENERAL
1
Constructional features of ropes or cables
06
Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
D TEXTILES; PAPER
02
YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
G
CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS
3
Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
44
Yarns or threads characterised by the purpose for which they are designed
48
Tyre cords
Applicants:
NV BEKAERT SA [BE/BE]; Bekaertstraat 2, Zwevegem 8550, BE
BEKAERT (CHINA) TECHNOLOGY RESEARCH AND DEVELOPMENT CO., LTD. [CN/CN]; No. 98 Hongtong Road Jiangyin, Jiangsu 214434, CN
Inventors:
WANG, He; CN
ZHOU, Wei; CN
ZHU, Xiangyu; CN
ZHU, Hongzhen; CN
Agent:
KING & WOOD MALLESONS; 20th Floor, East Tower, World Financial Centre, No.1 Dongsanhuan Zhonglu Chaoyang District Beijing 100020, CN
Priority Data:
Title (EN) A M+N STEEL CORD FOR REINFORCING RUBBER PRODUCT
(FR) CÂBLÉ MÉTALLIQUE M + N PERMETTANT DE RENFORCER UN PRODUIT EN CAOUTCHOUC
Abstract:
(EN) A steel cord for rubber reinforcement comprises a first group of core filaments having a number of m and a second group of sheath filaments having a number of n, m is three or four, the core filaments are forming a helix, the core filaments are not twisted together and being substantially parallel or the core filaments have a twist pitch being more than 300mm; the second group and the first group are twisted around each other, and the sheath filaments are forming a flattened helix in the same direction of the helix of the core filaments, and the sheath filaments have a cord twist pitch, at any cross-section of the steel cord, at least one interstice between two adjacent core filaments is present. The steel cord has improved abrasion resistance and can contribute to the reduction of the weight of the tire.
(FR) L'invention concerne un câblé métallique destiné au renforcement de caoutchouc et qui comprend un premier groupe de filaments d'âme ayant un nombre m et un second groupe de filaments de gaine ayant un nombre n, m étant de trois ou quatre, les filaments d'âme formant une hélice, les filaments d'âme n'étant pas torsadés ensemble et étant sensiblement parallèles ou les filaments d'âme ayant un pas de torsade supérieur à 300 mm ; le second groupe et le premier groupe étant torsadés l'un autour de l'autre, et les filaments de gaine formant une hélice aplatie dans la même direction que l'hélice des filaments d'âme, et les filaments de gaine ayant un pas de torsade de câblé, au niveau de n'importe quelle section transversale du câblé métallique, au moins un interstice étant présent entre deux filaments d'âme adjacents. Le câblé métallique présente une meilleure résistance à l'abrasion et peut contribuer à réduire le poids du pneu.
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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, 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, KN, KP, KR, 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: English (EN)
Filing Language: English (EN)