公开(公告)号：US20240044075A1

公开(公告)日：2024-02-08

申请号：US17760665

申请日：2021-04-30

Applicant: Jiangsu Xingda Steel Tyre Cord Co., Ltd.

Inventor： Xiang LIU ,  Aiping WANG ,  Nianpeng ZHAO ,  Weiming MA ,  Xianghui LIU ,  Chundong PAN ,  Cunjun ZHAO

IPC: D07B1/06 ,  B60C9/00

CPC classification number: D07B1/062 ,  B60C9/0007 ,  D07B2201/2066 ,  D07B2201/2009 ,  D07B2201/102 ,  D07B2201/104 ,  D07B2205/3025 ,  D07B2501/2046 ,  D07B2201/2006 ,  D07B2401/2095

Abstract: A steel cord and a manufacturing process are disclosed. The steel cord includes a steel core wire located in the center and having a diameter of d; and M sheath-layer steel wires arranged around the steel core wire in the center, tangent to the steel core wire, and having a diameter of d1, at least two gaps L existing between the M sheath-layer steel wires, where M is 4; d, d1, and L satisfy the following relationship: 0.420

公开(公告)号：US20230366149A1

公开(公告)日：2023-11-16

申请号：US18044435

申请日：2021-09-24

Applicant: Pirelli Tyre S.p.A.

Inventor： Simone AGRESTI ,  Guido Luigi DAGHINI

IPC: D07B1/06 ,  B60C9/00

CPC classification number: D07B1/062 ,  B60C9/0007 ,  B60C2009/0092 ,  D07B2501/2046 ,  D07B2201/2006 ,  D07B2201/2039 ,  D07B2201/1044

Abstract: The invention relates to a metallic reinforcing cord (10) for tyres for vehicle wheels, comprising from two to ten metallic wires (11) twisted together with a twisting pitch (P) and each having a predetermined diameter. In at least some cross sections of the metallic reinforcing cord (10), at least two of said metallic wires (11) are arranged to a minimum mutual distance greater than, or equal to, 2.5 times the predetermined diameter.

公开(公告)号：US20190184749A1

公开(公告)日：2019-06-20

申请号：US16204704

申请日：2018-11-29

Applicant: Toyo Tire & Rubber Co., Ltd.

Inventor： Kazuhide Adachi

IPC: B60C9/00 ,  D07B1/02

CPC classification number: B60C9/0042 ,  B60C2009/0085 ,  B60C2009/0092 ,  D07B1/025 ,  D07B2201/104 ,  D07B2205/205 ,  D07B2501/2046

Abstract: A pneumatic tire is disclosed that can improve high-speed durability and shock resistance without increasing the mass of a belt reinforcing layer. The pneumatic tire includes a carcass, a belt on the outer periphery of a crown part of the carcass and a belt reinforcing layer on the outer periphery of the belt, wherein the belt reinforcing layer is provided with a belt reinforcing ply including an organic fiber cord having a double twisting structure obtained by intertwisting two first twisted yarns including a filament bundle of aliphatic polyamide fibers, having nominal fineness of 4000 dtex or less and having tensile toughness (J) per one cord of 5 J or more, and a major diameter direction of the belt reinforcing ply is parallel to a belt outer periphery, and the product of the toughness (J) per one organic fiber cord and cord count (number/25 mm) is 130 to 180.

公开(公告)号：US20180304689A1

公开(公告)日：2018-10-25

申请号：US15768719

申请日：2016-10-13

Applicant: SUMITOMO ELECTRIC TOCHIGI CO., LTD. ,  Sumitomo (SEI) Steel Wire Corp. ,  SUMITOMO RUBBER INDUSTRIES, LTD. ,  NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Tetsuya Nakajima ,  Kenichi Yamashita ,  Takashi Tokuyama ,  Shinei Takamura ,  Masumi Suzuki ,  Koji Fujisawa

IPC: B60C9/00 ,  D07B1/06

CPC classification number: B60C9/0007 ,  B60C1/00 ,  B60C9/00 ,  B60C2009/0014 ,  D07B1/06 ,  D07B1/0666 ,  D07B2201/2087 ,  D07B2201/2092 ,  D07B2205/3025 ,  D07B2205/3067 ,  D07B2205/3071 ,  D07B2501/2046 ,  D10B2505/022

Abstract: A tire having a rubber body in which a steel cord is embedded, wherein a layer composed of ZnxCoyO is formed at the interface between the steel cord and the rubber body and x+y is 5/6 or more and 1 or less.

公开(公告)号：US20180111426A1

公开(公告)日：2018-04-26

申请号：US15672912

申请日：2017-08-09

Applicant: KUMHO TIRE CO., INC.

Inventor： Byung Chul PARK ,  Woo Young KIM

IPC: B60C15/04

CPC classification number: B60C15/04 ,  B60C9/005 ,  B60C2009/0014 ,  B60C2009/0021 ,  B60C2015/046 ,  D02G3/48 ,  D07B1/0633 ,  D07B1/0666 ,  D07B2201/2038 ,  D07B2501/2046

Abstract: The present disclosure relates to a cable bead for a pneumatic tire which constitutes a bead part of a pneumatic tire, improves rubber permeability by restricting a ratio between a diameter of a cable and a pitch of an outer wire, and improves durability of a pneumatic tire by improving rubber adhesive properties through cobalt coating on a surface of the outer wire, and a pneumatic tire having the same, and the cable bead for a pneumatic tire is characterized in that the diameter D of the cable and a pitch P of the outer wire 20 satisfy a relationship formula, P/D=25 to 45, and further characterized in that the surface of the outer wire 20 is coated with cobalt after wire drawing.

公开(公告)号：US20170327977A1

公开(公告)日：2017-11-16

申请号：US15532798

申请日：2015-12-07

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

Inventor： RICHARD CORNILLE ,  JEREMY GUILLAUMAIN ,  CHRISTOPHE LE CLERC ,  AUGUSTIN BOSQUET

IPC: D02G3/48 ,  D02G3/28 ,  B60C9/00

CPC classification number: D02G3/48 ,  B60C9/0042 ,  B60C2009/0078 ,  B60C2009/0092 ,  D02G3/28 ,  D07B1/025 ,  D07B2201/1044 ,  D07B2201/1064 ,  D07B2201/2009 ,  D07B2201/2025 ,  D07B2205/205 ,  D07B2501/2046 ,  D07B2801/10

Abstract: An aramid textile cord (50) with at least triple twist (T1, T2, T3) comprises at least N strands (20a, 20b, 20c, 20d), N being greater than 1, twisted together with a final twist T3 and a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), M being greater than 1, themselves twisted together with an intermediate twist T2 (T2a, T2b, T2c, T2d) and an intermediate direction D1 opposite to D2, each pre-strand itself consisting of a yarn (5) which has been twisted on itself beforehand with an initial twist T1 (T1a, T1b, T1c) and the direction D1, in which at least half of the N times M yarns are aramid yarns. This textile cord can advantageously be used as a reinforcer in tires for vehicles, particularly in the belt or carcass reinforcement of these tires.

公开(公告)号：US20170327976A1

公开(公告)日：2017-11-16

申请号：US15532757

申请日：2015-12-07

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

Inventor： RICHARD CORNILLE ,  JEREMY GUILLAUMAIN ,  CHRISTOPHE LE CLERC ,  AUGUSTIN BOSQUET

IPC: D02G3/48 ,  D07B1/02

CPC classification number: D02G3/48 ,  D07B1/02 ,  D07B1/025 ,  D07B2201/1044 ,  D07B2201/1064 ,  D07B2201/2025 ,  D07B2401/2005 ,  D07B2501/2046

Abstract: A textile cord (50) with at least triple twist (T1, T2, T3) comprises at least N strands (20a, 20b, 20c, 20d), N being greater than 1, twisted together with a final twist T3 and a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), M being greater than 1, themselves twisted together with an intermediate twist T2 (T2a, T2b, T2c, T2d) and an intermediate direction D1 opposite to D2, each pre-strand itself consisting of a yarn (5) which has been twisted on itself beforehand with an initial twist T1 (T1a, T1b, T1c) and the direction D1, in which at least half of the N times M yarns have an initial elastic modulus denoted Mi which is greater than 800 cN/tex. This textile cord can advantageously be used as a reinforcer in tires for vehicles, particularly in the belt or carcass reinforcement of these tires.

公开(公告)号：US20170321376A1

公开(公告)日：2017-11-09

申请号：US15524716

申请日：2015-11-20

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

Inventor： MARC CALVET ,  HENRI BARGUET ,  FRANCIS AUBAREDE

IPC: D07B5/00 ,  B60C9/00 ,  D07B1/12 ,  D02G3/48 ,  D07B1/06

CPC classification number: D07B5/007 ,  B60C9/0007 ,  B60C2009/0078 ,  B60C2009/0085 ,  B60C2009/0092 ,  D02G3/48 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0646 ,  D07B1/12 ,  D07B3/00 ,  D07B7/025 ,  D07B2201/2007 ,  D07B2201/2021 ,  D07B2201/2035 ,  D07B2205/3021 ,  D07B2207/204 ,  D07B2207/4018 ,  D07B2207/4072 ,  D07B2401/201 ,  D07B2401/406 ,  D07B2501/2046

Abstract: The method allows the manufacture of at least first and second assemblies (26, 28) of M1 filamentary elements and M2 filamentary elements, at least one of the first and second assemblies (26, 28) comprising several filamentary elements (14) wound together in a helix.The method comprises a step of assembling M filamentary elements (14) together into a layer of the M filamentary elements (14) around a temporary core (16) to form a temporary assembly (22), and a step of splitting the temporary assembly (22) into at least the first and second assemblies (26, 28) of M1 filamentary elements and M2 filamentary elements.

公开(公告)号：US20150329995A1

公开(公告)日：2015-11-19

申请号：US14651713

申请日：2013-12-13

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  MICHELIN RECHERCHE ET TECHNIQUE S.A.

Inventor： EMMANUEL CLEMENT ,  SÉBASTIEN HOLLINGER

IPC: D02G3/38 ,  B60C9/00 ,  D02G3/44 ,  D02G3/48 ,  D02G3/12 ,  D02G3/36

CPC classification number: D02G3/38 ,  B60C9/0007 ,  D02G3/12 ,  D02G3/36 ,  D02G3/446 ,  D02G3/48 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B1/14 ,  D07B5/12 ,  D07B2201/2002 ,  D07B2201/2003 ,  D07B2201/2004 ,  D07B2201/2005 ,  D07B2201/2006 ,  D07B2201/2011 ,  D07B2201/2027 ,  D07B2201/2029 ,  D07B2201/203 ,  D07B2201/2031 ,  D07B2201/2036 ,  D07B2201/2037 ,  D07B2201/204 ,  D07B2201/2051 ,  D07B2201/206 ,  D07B2201/2061 ,  D07B2201/2081 ,  D07B2201/2095 ,  D07B2201/2097 ,  D07B2205/3021 ,  D07B2205/3028 ,  D07B2205/3035 ,  D07B2205/3042 ,  D07B2205/306 ,  D07B2205/3067 ,  D07B2205/3071 ,  D07B2205/3089 ,  D07B2205/3092 ,  D07B2401/207 ,  D07B2401/208 ,  D07B2501/2046 ,  Y10T428/12333 ,  D07B2801/12 ,  D07B2801/10 ,  D07B2801/14 ,  D07B2801/18

Abstract: A metal cord has cylindrical layers formed of an internal layer, an intermediate layer, and an external layer. The in internal layer includes M threads. The intermediate layer includes N threads wound in a helix around the internal layer. The external layer includes P threads wound in a helix around the intermediate layer. An inter-thread distance, D2, between the threads of the intermediate layer is greater than or equal to 25 μm. An inter-thread distance, D3, between the threads of the external layer is greater than or equal to 25 μm.

Abstract translation: 金属线具有由内层，中间层和外层形成的圆柱形层。 内层包括M线。 中间层包括缠绕在内层周围的螺旋线的N根螺纹。 外层包括以中间层周围的螺旋缠绕的P个螺纹。 中间层的螺纹间的间距D2大于或等于25μm。 外层的螺纹之间的线间距离D3大于或等于25μm。

公开(公告)号：US20150239295A1

公开(公告)日：2015-08-27

申请号：US14422733

申请日：2013-07-31

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  Michelin Recherche et Technique S.A.

Inventor： Arnaud Verleene ,  Sébastien Noel

IPC: B60C9/00 ,  C22C38/04 ,  C22C38/02 ,  C08J5/04

CPC classification number: B60C9/0007 ,  B21C1/003 ,  B32B15/013 ,  B60C2009/0085 ,  C08J5/041 ,  C08J2321/00 ,  C21D8/065 ,  C21D9/525 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/02 ,  C22C38/04 ,  D07B1/0613 ,  D07B1/062 ,  D07B1/0626 ,  D07B1/0633 ,  D07B1/066 ,  D07B2201/2046 ,  D07B2205/3021 ,  D07B2205/3035 ,  D07B2205/3042 ,  D07B2205/305 ,  D07B2205/306 ,  D07B2205/3067 ,  D07B2205/3071 ,  D07B2205/3085 ,  D07B2205/3089 ,  D07B2401/2055 ,  D07B2401/2095 ,  D07B2501/2046 ,  Y10T428/298 ,  D07B2801/10 ,  D07B2801/18

Abstract: The steel wire of diameter d expressed in mm, has a carbon content by weight C, expressed in %, such that 0.4%≦C≦0.5% and a maximum tensile strength R, expressed in MPa, such that R≧A.(920.C+500)/d1/2 with A=0.87.

Abstract translation: 直径d以mm表示的钢丝的碳含量以C表示，以％表示，使得0.4％＆lt; NlE; C＆lt; lE; 0.5％和最大拉伸强度R，以MPa表示，使得R≥A。 920.C + 500）/ d1 / 2，A = 0.87。