公开(公告)号：EP2841642B1

公开(公告)日：2016-07-27

申请号：EP13715715.2

申请日：2013-04-15

Applicant: NV Bekaert SA ,  DSM IP Assets B.V.

Inventor： AMILS, Xavier ,  DURMUS, Beste ,  SMEETS, Paulus Johannes Hyacinthus Marie

IPC: D07B1/06

CPC classification number: D07B1/0673 ,  D07B1/0686 ,  D07B1/0693 ,  D07B1/162 ,  D07B1/165 ,  D07B3/00 ,  D07B5/00 ,  D07B7/16 ,  D07B2201/1016 ,  D07B2201/102 ,  D07B2201/1036 ,  D07B2201/1064 ,  D07B2201/1068 ,  D07B2201/1072 ,  D07B2201/108 ,  D07B2201/2019 ,  D07B2201/202 ,  D07B2201/2023 ,  D07B2201/2027 ,  D07B2201/203 ,  D07B2201/204 ,  D07B2201/2051 ,  D07B2201/2055 ,  D07B2201/2057 ,  D07B2201/2065 ,  D07B2201/2068 ,  D07B2201/2074 ,  D07B2201/2087 ,  D07B2201/209 ,  D07B2205/2014 ,  D07B2205/205 ,  D07B2205/2096 ,  D07B2401/2055 ,  D07B2401/2085 ,  D07B2501/2007 ,  D07B2501/2015 ,  D07B2501/2061 ,  F16G11/042 ,  D07B2801/12 ,  D07B2801/24 ,  D07B2801/14

公开(公告)号：EP3025873A1

公开(公告)日：2016-06-01

申请号：EP14829520.7

申请日：2014-07-22

Applicant: Bridgestone Corporation

Inventor： ONUKI Atsushi ,  HASHIMOTO Masayuki

IPC: B60C9/00 ,  D07B1/06

CPC classification number: B60C9/0007 ,  B60C9/02 ,  B60C2009/0071 ,  B60C2009/0085 ,  B60C2009/0416 ,  B60C2009/0441 ,  B60C2009/045 ,  D07B1/062 ,  D07B1/0626 ,  D07B2201/2006 ,  D07B2201/202 ,  D07B2205/3057 ,  D07B2401/207 ,  D07B2401/2075 ,  D07B2801/10

Abstract: This invention provides a pneumatic tire having its weight reduced without degrading the durability of bead portions.
Provided is a pneumatic tire comprising, as a framework, at least one carcass ply comprising a steel cord covered with rubber. Letting d (mm) be the cord diameter of the steel cord and T (MPa) be the tensile strength of a steel filament forming the steel cord, the following relation is satisfied: a 1 T − b 1 > d > a 2 T + b 2 (where a 1 is 3.65 × 10 -4 mm/MPa, b 1 is 0.42 mm, a 2 is -8.00 × 10 -5 mm/MPa, and b 2 is 0.78 mm), and the tensile strength T of the steel filament is 3000 MPa (exclusive) to 4000 MPa (exclusive) and the number of hits E under a bead core of the steel cord in the carcass ply is 12 hits/25 mm (exclusive) to 38 hits/25 mm (exclusive).

Abstract translation: 本发明提供一种充气轮胎，其重量减轻而不会使胎圈部分的耐用性下降。 提供一种充气轮胎，其包括至少一个胎体帘布层作为骨架，所述胎体帘布层包括覆盖有橡胶的钢丝帘线。 d（mm）为钢丝帘线的帘线直径，T（MPa）为形成钢丝帘线的钢丝的抗拉强度，满足以下关系：a1T-b1> d> a2T + b2（其中a1为 3.65×10-4mm / MPa，b1为0.42mm，a2为-8.00×10-5mm / MPa，b2为0.78mm），钢丝的拉伸强度T为3000MPa（专用）〜4000 MPa（不包括），并且胎体帘布层中钢帘线的胎圈芯下面的碰撞点E的数量为12点/ 25毫米（不包括）至38点/ 25毫米（不包括）。

公开(公告)号：EP2550392B1

公开(公告)日：2015-04-01

申请号：EP11707379.1

申请日：2011-02-24

Applicant: NV Bekaert SA

Inventor： CHENG, Zhichao ,  WANG, Pengfei ,  HUANG, Zhongwei ,  SHENG, Xiaodao

IPC: D07B1/06

CPC classification number: D07B1/0613 ,  D07B1/0626 ,  D07B1/0646 ,  D07B1/0653 ,  D07B2201/1064 ,  D07B2201/1068 ,  D07B2201/2006 ,  D07B2201/2011 ,  D07B2201/2012 ,  D07B2201/2013 ,  D07B2201/202 ,  D07B2201/2023 ,  D07B2201/2029 ,  D07B2201/2032 ,  D07B2201/2051 ,  D07B2205/3035 ,  D07B2205/3057 ,  D07B2205/3089 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2501/2076 ,  Y10T428/2936 ,  D07B2801/12 ,  D07B2801/24 ,  D07B2801/10 ,  D07B2801/14 ,  D07B2801/18

公开(公告)号：EP2550392A1

公开(公告)日：2013-01-30

申请号：EP11707379.1

申请日：2011-02-24

Applicant: NV Bekaert SA

Inventor： CHENG, Zhichao ,  WANG, Pengfei ,  HUANG, Zhongwei ,  SHENG, Xiaodao

IPC: D07B1/06

CPC classification number: D07B1/0613 ,  D07B1/0626 ,  D07B1/0646 ,  D07B1/0653 ,  D07B2201/1064 ,  D07B2201/1068 ,  D07B2201/2006 ,  D07B2201/2011 ,  D07B2201/2012 ,  D07B2201/2013 ,  D07B2201/202 ,  D07B2201/2023 ,  D07B2201/2029 ,  D07B2201/2032 ,  D07B2201/2051 ,  D07B2205/3035 ,  D07B2205/3057 ,  D07B2205/3089 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2501/2076 ,  Y10T428/2936 ,  D07B2801/12 ,  D07B2801/24 ,  D07B2801/10 ,  D07B2801/14 ,  D07B2801/18

Abstract: A steel cord (10) for reinforcing rubber product comprises at least one core strand (12) and outer strands (14), the outer strands (14) are helically twisted around at least one core strand (12). Each of the strands (12, 14) comprises core steel filaments (16, 20) with the number of m and outer steel filaments with the number of n. The diameter of the core steel filaments in the core strand is Dcc, the diameter of the outer steel filaments in the core strand is Doc, the diameter of the core steel filament in the outer strand is Dco, and the diameter of the outer steel filament in the outer strand is Doo. The ratio of Dcc/Doc is not less than 1.04, the ratio of Dco/Doo is not less than 1.03, and the ratio of Doc/Dco is not less than 1. The core steel filaments and outer steel filaments are polygonally preformed before being twisted into strands. The steel cord is used for reinforcing off-the-road tire.

公开(公告)号：EP1353810B1

公开(公告)日：2012-08-29

申请号：EP01991849.9

申请日：2001-12-14

Applicant: Pirelli Tyre S.p.A.

Inventor： ARMELLIN, Giancarlo ,  RIVA, Guido

IPC: B60C9/00 ,  B60C9/22 ,  B60C9/20 ,  D07B1/06 ,  B29D30/70 ,  B29D30/38 ,  B29C47/02

CPC classification number: D07B1/0646 ,  B29C47/0016 ,  B29C47/003 ,  B29C47/027 ,  B29D30/38 ,  B29D30/70 ,  B60C9/0007 ,  B60C9/2006 ,  B60C9/2009 ,  B60C9/2204 ,  D07B1/0613 ,  D07B2201/1052 ,  D07B2201/1064 ,  D07B2201/1068 ,  D07B2201/1072 ,  D07B2201/2002 ,  D07B2201/2007 ,  D07B2201/2008 ,  D07B2201/202 ,  D07B2201/2024 ,  D07B2201/2029 ,  D07B2201/2039 ,  D07B2401/2005 ,  D07B2501/2046 ,  Y10S57/902 ,  Y10T152/10783

公开(公告)号：EP2414582A1

公开(公告)日：2012-02-08

申请号：EP10711225.2

申请日：2010-03-29

Applicant: Société de Technologie MICHELIN ,  MICHELIN Recherche et Technique S.A.

Inventor： POTTIER, Thibaud ,  GAUTHIER, Jacques ,  TOUSSAIN, Jérémy

IPC: D07B1/06 ,  D07B1/16 ,  D07B7/14 ,  D07B3/02 ,  D07B5/12

CPC classification number: D07B5/12 ,  D07B1/0633 ,  D07B7/145 ,  D07B2201/202 ,  D07B2201/2023 ,  D07B2201/2025 ,  D07B2201/2028 ,  D07B2201/203 ,  D07B2201/2031 ,  D07B2201/204 ,  D07B2201/2046 ,  D07B2201/2059 ,  D07B2201/2065 ,  D07B2201/2081 ,  D07B2207/205 ,  D07B2207/4072 ,  D07B2401/2015 ,  D07B2401/2025 ,  D07B2401/207 ,  D07B2501/2046

Abstract: The invention relates to a method for producing a metal cord having three concentric layers (C1, C2, C3), of the type that is rubberized in situ, i.e. during the production thereof. The cord comprises a first inner layer or core (C1), around which N strands of diameter d
2 are wound together in the form of a helix with a pitch p
2 to form an intermediate layer (C2), N varying between 3 and 12. In addition, P strands of diameter d
3 are wound together around this second layer in the form of a helix with a pitch p
3 to form a third outer layer (C3), P varying between 8 and 20. The method includes the following steps: a first step in which the core (C1) is coated with a rubber composition known as "filling rubber" in the non-crosslinked state; a step in which the N strands of the second layer (C2) are assembled and twisted around the thus coated core (C1), so as to form an intermediate cord, known as the "core strand" (C1+C2), at a point known as the "assembly point"; a step in which the P strands of the third layer (C3) are assembled and twisted around the core strand (C1+C2); and a final twist value balancing step. The invention also relates to the device used to implement one such method.

公开(公告)号：EP2046673A2

公开(公告)日：2009-04-15

申请号：EP07825777.1

申请日：2007-05-24

Applicant: KIMBERLY-CLARK WORLDWIDE, INC.

Inventor： BAGGOT, James Leo ,  HADA, Frank Stephen

IPC: B65H35/08 ,  B26D1/62

CPC classification number: B65H35/08 ,  B26D1/626 ,  B26D5/00 ,  B26D5/08 ,  B26D5/086 ,  B26D5/20 ,  B26D2001/623 ,  B26D2007/2692 ,  B26F1/20 ,  B65H2301/5152 ,  B65H2403/943 ,  B65H2511/11 ,  B65H2511/212 ,  B65H2513/10 ,  D07B2201/202 ,  Y10T83/04 ,  Y10T83/159 ,  Y10T83/4836

Abstract: A method and apparatus (20) for intermittently cutting a moving target web (26) includes rotating a knife roll (32) having at least one knife member (44) to provide an operative knife-member speed, and rotating an anvil roll (34) having at least one anvil member (46) to provide an operative anvil-member speed. The knife roll and anvil roll have been positioned to provide an operative nip region (30) therebetween, and a substantially continuous target web (26) has been moved at a selected web speed through the nip region. A rotational positioning of the knife member has been coordinated with a rotational positioning of its cooperating anvil member to provide an operative, cutting engagement between the knife member and its cooperating anvil member, thereby cutting the moving web at cut locations which are intermittently spaced along a machine-direction (22) of the target web.

公开(公告)号：EP1985748A1

公开(公告)日：2008-10-29

申请号：EP07708182.6

申请日：2007-02-07

Applicant: Bridgestone Corporation

Inventor： IKEHARA, Kiyoshi

IPC: D07B1/06 ,  B60C9/00 ,  B60C9/20 ,  B60C9/22

CPC classification number: B60C9/22 ,  B60C9/0007 ,  B60C9/2006 ,  D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/1004 ,  D07B2201/1032 ,  D07B2201/1044 ,  D07B2201/1076 ,  D07B2201/202 ,  D07B2201/2021 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/204 ,  D07B2201/2059 ,  D07B2401/208 ,  D07B2501/2046 ,  D07B2801/12

Abstract: A steel cord that is especially useful for reinforcing a crown portion of a tire is provided. In particular, a steel cord free from manufacturing problems existed in the conventional art and allowing for stable quality and good production efficiency is provided, and a rubber-steel cord composite and a tire that are equipped with the same are provided.
A steel cord has a multiple-twist structure including N (N = 2 to 8) strands 2 that are twisted together, each strand 2 having a plurality of wires 1 that are twisted together. When the diameter of each strand is denoted by d (mm), the diameter of a circle circumscribing the cord is denoted by D (mm), and the twisting pitch of the cord is denoted by P (mm), ε c defined by the following expression, ε c = √(-b/2 + √(b 2 /4 - c)) - 1 (where b denotes -1+π 2 (-4R 2 +d 2 )/P 2 , c denotes π 2 d 2 k(4π 2 R 2 +P 2 )/P 4 , R denotes (D-d)/2, and k denotes tan 2 (π/2-π/N) satisfies ε c ≥0.005.

Abstract translation: 提供了特别可用于加强轮胎胎冠部分的钢丝帘线。 特别地，在传统技术中存在没有制造问题的钢丝帘线，并且提供了稳定的质量和良好的生产效率，并且提供了配备有它们的橡胶 - 钢帘线复合材料和轮胎。 钢丝帘线具有扭绞在一起的N（N = 2〜8）股2的多捻结构，每股2具有多根捻合在一起的线1。 当每条线的直径用d（mm）表示时，用绳索表示的圆的直径由D（mm）表示，帘线的扭转间距用P（mm）表示，μc由 以下表达式为μc =š（-b / 2 +š（b 2/4-c））-1（其中b表示-1 + -2（-4R 2 + d 2）/ P 2，c表示2 d 2 k（4-2 R 2 + P 2）/ P 4，R表示（Dd）/ 2，k表示tan 2（À/ 2-ñ/ N）满足μc‰¥0.005。

公开(公告)号：EP1602780A2

公开(公告)日：2005-12-07

申请号：EP05016172.8

申请日：2001-09-11

Applicant: THE YOKOHAMA RUBBER CO., LTD.

Inventor： Hirachi, Minoru ,  Imamiya, Susumu

IPC: D07B1/06

CPC classification number: B60C9/0007 ,  B60C2200/06 ,  D07B1/062 ,  D07B1/0626 ,  D07B2201/202 ,  D07B2201/2023 ,  D07B2201/2024 ,  D07B2201/2039 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2201/2059 ,  D07B2201/2061 ,  D07B2201/2062 ,  D07B2205/2003 ,  D07B2205/2075 ,  D07B2205/2082 ,  D07B2801/18 ,  D07B2801/16 ,  D07B2801/12

Abstract: A steel cord having a 1 x N twist structure containing N pieces of wires, in which a rubber compound or an elastomer compound is filled into a space at a cord center surrounded by the N pieces of wires. The fatigue resistance thereof is increased so that the energy efficiency during curing of the tire is improved.

Abstract translation: 一种具有1×N捻合结构的钢丝帘线，其包含N条线，其中将橡胶化合物或弹性体化合物填充到由N条线围绕的绳索中心的空间中。 耐疲劳性提高，轮胎固化时的能量效率提高。

公开(公告)号：EP1125768A3

公开(公告)日：2002-12-11

申请号：EP01301323.0

申请日：2001-02-15

Applicant: Sumitomo Rubber Industries Ltd. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Miyazaki, Shinichi, c/o Sumitomo Rubber Ind. Ltd.6 ,  Yamazaki, Kazumi, c/o Sumitomo Rubber Ind. Ltd. ,  Toda, Osamu, c/o Sumitomo Rubber Ind. Ltd. ,  Sakai, Yasuo, c/o Itami Works

IPC: B60C9/20 ,  B60C9/00 ,  D07B1/06

CPC classification number: D07B1/0646 ,  B60C9/0007 ,  B60C9/0057 ,  B60C9/2006 ,  D07B1/0613 ,  D07B2201/104 ,  D07B2201/1064 ,  D07B2201/202 ,  D07B2201/2022 ,  D07B2201/2023 ,  D07B2201/2036 ,  D07B2201/2039 ,  D07B2501/2046 ,  Y10S57/902 ,  Y10T152/10495 ,  Y10T152/10765

Abstract: A pneumatic tyre (1) comprises a tread reinforcing belt (7) made of metallic cords (10), wherein each of the metallic cords is made up of six to twelve metallic filaments (F) whose diameter (d) is not less than 0.15 mm but less than 0.25 mm, the six to twelve metallic filaments (F) are grouped into a plurality of bunches (B) each including two to four filaments (F), the filaments of each bunch are twisted together at a first twisting pitch (Pf), the bunches (B) are twisted together into the cord at a final twist pitch (Pc) of from 10 to 40 mm, the first twisting pitch (Pf) is more than the final twist pitch (Pc), and the bunches (B) each include at least one waved filament (FA) which is two-dimensionally waved at wave pitches (Pw) in a range of from 5 to 30 times the diameter (d) of the filament and a wave height (h) in a range of from 0.2 to 3.0 times the diameter (d).

Abstract translation: 一种充气轮胎（1），其特征在于，具有由金属帘线（10）构成的胎面加强带（7），上述金属帘线由6根〜12根直径（d）为0.15以上的金属丝 mm但小于0.25mm时，将六根至十二根金属丝（F）分组成多个束（B），每根束（B）包括两根至四根长丝（F），每束的长丝以第一扭转节距 Pf）中，束（B）以10至40mm的最终扭绞节距（Pc）捻合到帘线中，第一扭转节距（Pf）大于最终扭绞节距（Pc），并且束 （B）各自包括至少一个以波长间距（Pw）二维地波动的波长灯丝（FA），其长度为灯丝直径（d）的5至30倍和波长 范围是直径（d）的0.2至3.0倍。