公开(公告)号：JP2006104636A

公开(公告)日：2006-04-20

申请号：JP2004297005

申请日：2004-10-08

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

IPC: D07B1/06 ,  B60C9/00 ,  B60C9/20

CPC classification number: D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/1052 ,  D07B2201/1068 ,  D07B2201/203

Abstract: PROBLEM TO BE SOLVED: To provide a steel cord for reinforcing a rubber article; and to provide a pneumatic radial tire having improved durability by using the steel cord for reinforcing the rubber article as a reinforcing material.
SOLUTION: The steel cord for reinforcing the rubber article has a 1+6 double twisted structure constituted of one core strand having two- or three-ply layered twist structure, and six sheath strands surrounding the core strand and having two- or three-ply layered twist structures. The whole layered twist directions in the core strand 1 and the twist direction of the sheath strand 4 are the same direction, and the layered twist directions in the sheath strands 4 are the combination of different directions.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于加强橡胶制品的钢丝帘线; 并且通过使用用于加强作为增强材料的橡胶制品的钢丝帘线提供具有改善的耐久性的充气子午线轮胎。 解决方案：用于加强橡胶制品的钢丝帘线具有由具有两层或三层分层扭曲结构的一根芯股线构成的1 + 6双扭转结构，以及围绕该芯股线的六条鞘股线， 三层分层扭结结构。 芯股线1中的整个分层扭转方向和鞘股4的扭转方向是相同的方向，鞘股4中的分层扭转方向是不同方向的组合。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004323979A

公开(公告)日：2004-11-18

申请号：JP2003115681

申请日：2003-04-21

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

IPC: D07B1/06 ,  B60C9/00 ,  B60C9/20

CPC classification number: D07B1/0646 ,  D07B2201/2023 ,  D07B2201/2097

Abstract: PROBLEM TO BE SOLVED: To provide a cord improving bending and compression durability without causing an increase in weight.
SOLUTION: The cord 10 comprises a wrapping filament 16 wrapped around a cord body 14 composed of a plurality of filaments 12 with an amplitude in the direction intersecting the cord radial direction at right angles in a helical form. Thereby, the wrapping filament 16 can be deformed in the direction to lengthen the wavelength to relax tension applied to the wrapping filament 16 when the tension is applied to the wrapping filament 16. Thereby, the breaking of the wrapping filament 16 is suppressed. Since the wrapping filament 16 is wrapped around the cord body 14 with the amplitude in the direction intersecting the cord radial direction at right angles in the helical form, the contact surface area with each filament 12 constituting the cord body 14 is minimized to suppress the abrasion of the wrapping filament 16.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004051811A

公开(公告)日：2004-02-19

申请号：JP2002212069

申请日：2002-07-22

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

IPC: B60C1/00 ,  C08K3/00 ,  C08L21/00

Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire which prevents bacteria from adhering thereto and diffusing by imparting antibacterial properties to a tire sheath member without detriment to abrasion resistance and fracture resistance as inherent performances of the tire.
SOLUTION: The pneumatic tire is obtained by applying a rubber composition comprising an antibacterial agent to at least a sheath member of the tire. The amount of the antibacterial agent is preferably 0.1-5.0 pts. mass based on 100 pts. mass of a rubber component comprising natural rubber and/or a synthetic diene rubber. The antibacterial agent is preferably an inorganic antibacterial agent and more preferably a silver-containing antibacterial agent.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种充气轮胎，其通过赋予轮胎护套构件而不损害耐磨损性和耐断裂性，从而防止细菌粘附到其上并进行扩散，作为轮胎的固有性能。 解决方案：通过将至少包含抗菌剂的橡胶组合物涂覆在轮胎的护套部件上，获得充气轮胎。 抗菌剂的用量优选为0.1-5.0份。 质量基于100点。 包含天然橡胶和/或合成二烯橡胶的橡胶组分的质量。 抗菌剂优选为无机抗菌剂，更优选为含银抗菌剂。 版权所有（C）2004，JPO

公开(公告)号：JPH09226021A

公开(公告)日：1997-09-02

申请号：JP6176296

申请日：1996-02-23

Applicant: BRIDGESTONE CORP

Inventor： AOYAMA MASANORI

IPC: B29D30/52

Abstract: PROBLEM TO BE SOLVED: To improve the durability of retreated tire in a method for retreating a high speed heavy load inflated tire when a carcass ply is exposed on a buffing surface or when a carcass ply cord is cut and damaged. SOLUTION: A repairing rubber is laminated on the exposed part of the carcass ply cord on the buffing surface of a base tire so that the relationship among the elastic modulus Gr of the rubber, the elastic modulus Gc of cushion rubber and the elastic modulus Gp of a carcass ply coating rubber satisfy a formula of Gc

公开(公告)号：JPH07126438A

公开(公告)日：1995-05-16

申请号：JP29727493

申请日：1993-11-02

Applicant: BRIDGESTONE CORP

Inventor： TERATANI HIROYUKI ,  AOYAMA MASANORI

IPC: B60C1/00 ,  B60C11/00 ,  C08K3/00 ,  C08K3/04 ,  C08K3/06 ,  C08L9/00 ,  C08L21/00

Abstract: PURPOSE:To provide a studless tire, capable of sufficiently ensuring the maneuvering stability, durability and low fuel consumption in the summer period and further having sufficient braking and driving properties even in ice and snow performances not only on dry on ice but also wet on ice and useful for all seasons in a true sense. CONSTITUTION:This pneumatic tire is provided by installing expanded rubber, containing a resin, having >=40 deg. hardness measured according to a method of ASTM Shore D and 10-400mum average grain diameter and capable of forming a polymer alloy with rubber or cocross-linkable with the rubber in an amount of 5-30 pts.wt. based on 100 pts.wt. rubber component and having 5-30% expansion ratio and closed cells in which the average grain diameter of the resin is 0.5-5 times based on the average expansion diameter and a storage elastic modulus (E') within the range of 6.0mu10 to 2X10 dyn/cm at -20 deg.C in a tread.

公开(公告)号：JPH06306207A

公开(公告)日：1994-11-01

申请号：JP12046093

申请日：1993-04-26

Applicant: BRIDGESTONE CORP

Inventor： AOYAMA MASANORI ,  YAMANAKA EIJI

IPC: B60C1/00 ,  B60C5/00 ,  C08K3/00 ,  C08K3/04 ,  C08K3/06 ,  C08L9/00 ,  C08L21/00

Abstract: PURPOSE:To obtain a studless tire for all seasons in the true meaning, capable of sufficiently ensuring maneuvering stability, durability and low fuel consumption in the summer season and further having sufficient braking and driving performance under not only dry-on-ice but also wet-on-ice conditions. CONSTITUTION:The pneumatic tire is obtained by blending a syndiotactic-1,2- polybutadiene resin composite, prepared by blending a crystalline syndiotactic-1,2-polybutadiene resin having a 110-230 deg.C m.p. with sulfur in an amount of 0.3-5.0 pts.wt. based on 100 pts.wt. resin and a vulcanization accelerator in an amount of 0.1-7.0 pts.wt. based on 100 pts.wt. resin and having 10-500mum particle diameter in an amount of 5-60 pts.wt. based on 100 pts.wt. rubber for forming the matrix part of a tire tread part.

公开(公告)号：JP2009191424A

公开(公告)日：2009-08-27

申请号：JP2008036486

申请日：2008-02-18

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

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

CPC classification number: D07B1/0646 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/2021

Abstract: PROBLEM TO BE SOLVED: To provide a rubber-steel cord composite capable of suppressing transmission of moisture while ensuring high strength and stiffness which are desired as a reinforcing material of a pneumatic tire and a pneumatic tire using the composite.
SOLUTION: In the rubber-steel cord composite in which a steel cord 1 is buried in a rubber, the steel cord 1 has a two or three-layered layer stranded structures obtained by twisting 10-30 steel filaments 2 together and at least one steel filament among steel filaments 2 constituting each layer is two- or three-dimensionally patterened and whole cord is two-dimensionally pattered in nearly wavy form.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制水分传递的橡胶钢帘线复合材料，同时确保作为充气轮胎的增强材料和使用该复合材料的充气轮胎所需的高强度和刚度。 解决方案：在钢帘线1埋在橡胶中的橡胶钢帘线复合体中，钢丝帘线1具有通过将10-30钢丝2一起扭曲并在一起而获得的两层或三层层状绞合结构 构成每一层的钢丝2中的至少一根钢丝是二维或三维的，整个帘线以几乎波状形式二维地图案化。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009001092A

公开(公告)日：2009-01-08

申请号：JP2007162232

申请日：2007-06-20

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI ,  IKEHARA KIYOSHI

IPC: B60C9/20 ,  B60C9/00 ,  B60C9/18 ,  D07B1/06

CPC classification number: D07B1/0613 ,  D07B1/0626 ,  D07B1/0633 ,  D07B2201/1076

Abstract: PROBLEM TO BE SOLVED: To provide a tire capable of solving the conventional problem in manufacturing and being efficiently produced in stable quality, with good tire durability, especially a superior wear resistance characteristic. SOLUTION: A crown reinforced layer 13 has a multi-twist-structure constituted by twisting N (N=2 to 8) strands in which a plurality of wires are twisted. When a diameter of the strand, a diameter of a circumscribed circle of a cord and twisting pitch of the cord are defined as d, D and P, respectively, ε c is defined by ε c =√(-b/2+√(b 2 /4-c))-1 (b shows -1+π 2 (-4R 2 +d 2 )/P 2 , c shows π 2 d 2 k(4π 2 R 2 +P 2 )/P 4 , R shows (D-d)/2, and k shows tan 2 (π/2-π/N) in this formula). This tire is formed by a strip constituted by orienting a rubber-steel-cord composite body made by burying a steel cord satisfying ε c ≥0.005 in rubber as a whole along a tire peripheral direction. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供能够解决制造中的常规问题并且以高质量有效地制造的轮胎，具有良好的轮胎耐久性，特别是优异的耐磨特性。 解决方案：冠部加强层13具有通过扭转其中多根线被扭曲的N（N = 2至8）股线构成的多捻结构。 当线的直径，帘线的外接圆的直径和帘线的扭曲间距分别被定义为d，D和P时，ε c < =√（-b / 2 +√（b 2 / 4-c）） - 1（b表示-1 +π 2 < SP> 2 + d 2 ）/ P 2 ，c表示π 2 d 2 （4π 2 R 2 + P 2 ）/ P 4 ，R表示（Dd）/ 2， k表示该式中的tan 2 （π/ 2-π/ N））。 该轮胎由沿着轮胎周边方向整体地橡胶制成的橡胶 - 钢丝帘线复合体定向成形，所述橡胶 - 钢丝帘线复合体整体在橡胶中满足ε c ≥0.005。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008088613A

公开(公告)日：2008-04-17

申请号：JP2006273014

申请日：2006-10-04

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

IPC: D07B1/06 ,  B60C9/00 ,  B60C15/06

CPC classification number: D07B1/0613 ,  D07B2201/1044 ,  D07B2201/202

Abstract: PROBLEM TO BE SOLVED: To provide a rubber-steel cord composite suitable as a reinforcement of a heavy load pneumatic radial tire usable as a mining vehicle tire, and to provide a heavy load pneumatic radial tire designed to improve bead part durability by applying the composite to a bead part reinforcing layer.
SOLUTION: The steel cord has a double twisted structure obtained by twisting N pieces (N=2-8) of strands 2 obtained by twisting plural wires 1, and when the diameter of the strand 2 is d (mm), the circumscribing circle diameter of the cord is D (mm) and the twisting pitch of the cord is P (mm), ε
c defined by the formula: ε
c =√[-b/2+√(b
2 /4-c)]-1 [wherein, b is -1+π
2 (-4R
2 +d
2 )/P
2 ; c is π
2 d
2 k(4π
2 R
2 +P
2 )/P
4 ; R is (D-d)/2; and k is tan
2 (π/2-π/N)] satisfies ε
c ≥0.01, and elongation at break is ≥3.0%.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种适合作为可用作采矿车辆轮胎的重载充气子午线轮胎的加强件的橡胶 - 钢丝绳复合物，并且提供设计成通过以下方式改善胎圈部件耐久性的重负荷充气子午线轮胎 将复合材料施加到胎圈部分增强层上。 解决方案：钢帘线具有通过扭转通过扭绞多根线1获得的线股2的N个（N = 2-8）而获得的双扭转结构，并且当线股2的直径为d（mm）时， 帘线的外接圆直径为D（mm），帘线的捻线间距为P（mm），ε c 由下式定义： -b / 2 +√（b 2 / 4-c）] - 1 [其中，b是-1 +π 2 < SP> + D 2 ）/ P 2 ; c是π 2 d 2 k（4π 2 R 2 + P 2 ）/ P 4 ; R为（D-d）/ 2; 并且k是tan 2（π/ 2-π/ N）]满足ε c ≥0.01，断裂伸长率≥3.0％。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008006969A

公开(公告)日：2008-01-17

申请号：JP2006179581

申请日：2006-06-29

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： AOYAMA MASANORI

IPC: B60C9/18 ,  B60C9/00 ,  B60C9/20

CPC classification number: B60C9/28 ,  B60C9/0007 ,  B60C9/2006 ,  B60C2009/2077 ,  B60C2200/06 ,  B60C2200/065 ,  D07B1/0613 ,  D07B2201/102 ,  D07B2201/1044 ,  Y10T152/10765

Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic radial tire for a heavy load vehicle improved in the durability of a belt. SOLUTION: The pneumatic radial tire for the heavy load vehicle is provided with a pair of bead buried with bead cores, and a radial carcass layer 1 extending from one of the beads to the other and wound and returned from an inner side to an outer side around the bead core, and has at least six sheets of belt layers outside the radial carcass layer 1. When maximum widths of the first and the second belts 2a of the belt layers are made to W 12 , maximum widths of the third and the fourth belts 2b are made to W 34 and maximum widths of the fifth and the sixth belts 2c are made to W 56 , a relationship of W 56 >W 34 >W 12 is satisfied, and cord diameters D12 of the first and the second belts and cord diameters D34 of the third and the fourth belts satisfy a relationship of 1>D 12 /D 34 >0.6. Further, a steel cord of each belt layer is made to a double-twisted structure that 2 to 10 cables twisted with a plurality of steel filaments are further twisted. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于重载车辆的充气子午线轮胎，提高了带的耐久性。 解决方案：用于重载车辆的充气子午线轮胎设置有一对胎圈芯埋入的胎圈，以及从一个胎圈延伸到另一个的径向胎体层1，并从内侧缠绕并返回到 围绕胎圈芯的外侧，并且在径向胎体层1的外面具有至少六层带束层。当带束层的第一带2a和第二带2a的最大宽度被制成W SB SB 12 >，使第三带2b和第四带2b的最大宽度为W <34>，第五和第六带2c的最大宽度为W 56 ，关系 的W 56 > W 34 > W 12 ，第一和第二带的帘线直径D12和帘线直径D34 第三和第四带满足1> D 12 / D 34 > 0.6的关系。 此外，每个带束层的钢丝帘线被制成双扭曲结构，其中扭曲了多根钢丝的2至10根电缆被进一步扭曲。 版权所有（C）2008，JPO＆INPIT