公开(公告)号：US09975385B2

公开(公告)日：2018-05-22

申请号：US14354050

申请日：2012-10-19

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Naoki Sugiyama ,  Makoto Ohkoshi ,  Hiroki Takahashi

IPC: B60C15/02 ,  B60C15/06 ,  B60C15/024 ,  B60C15/00

CPC classification number: B60C15/0628 ,  B60C15/0009 ,  B60C15/024 ,  B60C15/0607 ,  B60C15/0635 ,  B60C2015/009 ,  B60C2015/0614 ,  B60C2015/0621 ,  B60C2015/0625 ,  B60C2200/06 ,  Y10T152/10828

Abstract: Tire including: a tread; a pair of sidewalls extending substantially inward radially from ends of the tread; a pair of beads positioned substantially radially inwardly of the sidewalls; and a clinch portion extending from the sidewalls to the beads. A concave curved surface extends on an outer surface of the clinch portion in a circumferential direction. A convex curved surface formed on a radially outer side end of a rim flange is engageable with the concave curved surface. A ratio R1/R of curvature radius R1 of the concave curved surface to a curvature radius R of the convex curved surface of the rim flange satisfies 1.7≤R1/R≤2.5. The curvature radii R1 and R of the concave and convex curved surfaces, respectively, are each a radius of curvature of an arc on a cross-section taken along a plane including a tire center axis.

公开(公告)号：US09975377B2

公开(公告)日：2018-05-22

申请号：US14651976

申请日：2013-12-11

Applicant: PIRELLI TYRE S.P.A.

Inventor： Lisa Grassi ,  Giuseppina Ratti ,  Omar Ballabio ,  Luigia Rossiello

IPC: B60C1/00 ,  B29D30/08 ,  B60C5/00 ,  B60C9/02 ,  B60C9/18 ,  B60C15/06 ,  C09J109/10 ,  C08K5/1515 ,  C09J105/00 ,  C08K5/06 ,  C08K5/17 ,  C08L7/00 ,  C08L9/00 ,  C08L21/02 ,  B60C9/00 ,  C08L63/00

CPC classification number: B60C1/00 ,  B29B7/002 ,  B29B7/7495 ,  B29B7/90 ,  B29D30/08 ,  B60C1/0041 ,  B60C5/00 ,  B60C9/0042 ,  B60C9/02 ,  B60C9/18 ,  B60C15/0603 ,  B60C2001/005 ,  B60C2001/0066 ,  B60C2015/0614 ,  C08K5/06 ,  C08K5/1515 ,  C08K5/17 ,  C08L7/00 ,  C08L9/00 ,  C08L21/02 ,  C08L63/00 ,  C09J105/00 ,  C09J109/10 ,  C09J2405/003 ,  C09J2409/003 ,  Y10T152/1081 ,  Y10T152/10828 ,  Y10T152/10846

Abstract: Tires for vehicle wheels having reduced environmental impact and the components thereof, in particular reinforcing structural elements such as carcass structures, belt structures, flippers and chafers, include elongated reinforcing elements treated with resorcinol and formaldehyde-free cross-linkable adhesive compositions. The adhesive compositions include at least a) a rubber latex, at least b) an epoxide and at least c) a polyamine with molecular weight higher than 190 Daltons, including at least two amino groups selected from primary —NH2 and secondary —NH— amino groups. In the structural element, these compositions confer an adhesion between cords and compounds that is comparable to, if not better than, the traditional RFL system in use in this sector. Furthermore, by suitably modifying the compound compositions in the reinforced structural elements and, possibly, also in the other elastomeric components of the tire, it is possible to manufacture tires while avoiding the use of toxic chemicals, such, as resorcinol and formaldehyde.

公开(公告)号：US09328212B2

公开(公告)日：2016-05-03

申请号：US13527954

申请日：2012-06-20

Applicant: Tatsuya Miyazaki

Inventor： Tatsuya Miyazaki

IPC: C08K3/04 ,  C08K3/20 ,  C08K5/09 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  B60C1/00

CPC classification number: C08K3/04 ,  B60C2001/005 ,  C08K3/20 ,  C08K5/09 ,  C08L7/00 ,  C08L9/00 ,  C08L9/06 ,  Y02T10/862 ,  Y10T152/10828

Abstract: The present invention aims to provide a rubber composition for a clinch or chafer which enables to improve the rim chafing resistance, elongation at break, handling stability, and fuel economy in a balanced manner, and to reduce the number of broken spews in tire demolding; and a pneumatic tire produced using the rubber composition. The rubber composition for a clinch or chafer includes 100 parts by mass of a rubber component; 1.2 to 2.9 parts by mass of zinc oxide; and 2.2 to 4.0 parts by mass of stearic acid, the rubber component including 15 to 80% by mass of a butadiene rubber and 15 to 50% by mass of an isoprene-based rubber based on 100% by mass of the rubber component.

Abstract translation: 本发明的目的在于提供一种用于搭接或胎圈包布的橡胶组合物，其能够以平衡的方式提高轮辋耐擦伤性，断裂伸长率，操作稳定性和燃料经济性，并且减少轮胎脱模中破裂的数量; 以及使用该橡胶组合物制造的充气轮胎。 用于钳口或胎圈包布的橡胶组合物包括100质量份的橡胶组分; 1.2〜2.9质量份氧化锌; 和2.2〜4.0质量份的硬脂酸，橡胶成分含有15〜80质量％的丁二烯橡胶和15〜50质量％的异戊二烯类橡胶，基于100质量％的橡胶成分。

公开(公告)号：US20150360524A1

公开(公告)日：2015-12-17

申请号：US14305657

申请日：2014-06-16

Applicant: The Goodyear Tire & Rubber Company

Inventor： Thulasiram Gobinath ,  Robert Leon Benedict ,  Richard Nicholas Crane

IPC: B60C23/12 ,  B60C15/06

CPC classification number: B60C23/12 ,  B60C2015/0614 ,  Y10T152/10828

Abstract: A tire assembly includes a tire having a pneumatic cavity, first and second sidewalls extending respectively from first and second tire bead regions to a tire tread region, the first sidewall having at least one bending region operatively bending when radially within a rolling tire footprint, and a chafer component with an air passageway defined by an air tube resiliently deforming segment by segment between an expanded condition and an at least partially collapsed condition in response to respective segment by segment deformation of the sidewall when radially within the rolling tire footprint. The tire assembly pumps a constant volume of air for every revolution of the tire thus providing a linear pumping rate regardless of dead volumes in the tire.

Abstract translation: 轮胎组件包括具有气动腔的轮胎，第一和第二侧壁分别从第一和第二轮胎胎圈区域延伸到轮胎胎面区域，第一侧壁具有至少一个弯曲区域，其在径向位于滚动胎面覆盖区域内可操作地弯曲;以及 胎圈包布部件，其具有由空气管限定的空气通道，所述空气通道在径向地位于滚动轮胎足迹内时响应于侧壁的逐段变形而在膨胀状态和至少部分折叠状态之间逐段变形。 轮胎组件为轮胎的每转一次泵送恒定体积的空气，从而提供线性泵送速率，而与轮胎中的死体积无关。

公开(公告)号：US20150283865A1

公开(公告)日：2015-10-08

申请号：US14436006

申请日：2013-10-29

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Kenji Ueda

IPC: B60C15/04 ,  B60C5/00 ,  B60C15/02

CPC classification number: B60C15/04 ,  B60C5/00 ,  B60C15/02 ,  B60C15/06 ,  B60C2001/005 ,  B60C2015/0614 ,  B60C2015/0617 ,  Y10T152/10828

Abstract: A tire includes a pair of beads, a carcass, chafers, an insulation, and cushion layers. Each bead includes a core positioned inward of the bead in a radial direction. At an inside of the core in the radial direction, the insulation is laminated on the chafers so as to be located outward of the chafers in the radial direction. Each cushion layer is laminated on the insulation so as to be located outward of the insulation in the radial direction. The insulation and the cushion layer are formed from respective crosslinked rubbers different from each other. A compressive elastic modulus Eα* of the crosslinked rubber of the cushion layer is smaller than a compressive elastic modulus Eβ* of the crosslinked rubber of the insulation.

Abstract translation: 轮胎包括一对胎圈，胎体，胎圈，隔离层和衬垫层。 每个胎圈包括沿径向位于胎圈内侧的芯。 在芯部的径向内侧，绝缘体层叠在晶圆上，以便沿径向位于晶片的外侧。 每个缓冲层层叠在绝缘体上以便沿径向位于绝缘体的外侧。 绝缘层和缓冲层由彼此不同的交联橡胶形成。 缓冲层的交联橡胶的压缩弹性模量Eα*小于绝缘体的交联橡胶的压缩弹性模量E＆bgr * *。

公开(公告)号：US20150114540A1

公开(公告)日：2015-04-30

申请号：US14492456

申请日：2014-09-22

Applicant: TOYO TIRE & RUBBER CO., LTD.

Inventor： Yu Tomitaka

IPC: B60C15/06

CPC classification number: B60C15/0628 ,  B60C15/0009 ,  B60C15/0072 ,  B60C15/06 ,  B60C15/0603 ,  B60C15/0607 ,  B60C2015/0621 ,  B60C2015/0625 ,  B60C2015/0642 ,  B60C2015/0646 ,  Y10T152/10819 ,  Y10T152/10828 ,  Y10T152/10855

Abstract: A pneumatic tire according to the invention includes: a pair of left and right beads 3 each including a bead cores 3a and bead fillers 3b; a carcass ply 5 extended around the bead cores 3a; and an inner liner 4 arranged on an inner peripheral side of the carcass ply 5, and is characterized in that the carcass ply 5 is wound up around the bead cores 3a from the outside in the direction of width of tire to the inside in the direction of width of tire, and a distortion restraining layer 7 configured to restrain distortion of the winding ends 5a of the carcass ply 5 is provided between the bead fillers 3b and the carcass ply 5 so as to overlap with a wind-up ends 5a of the carcass ply 5.

Abstract translation: 根据本发明的充气轮胎包括：一对左右的胎圈3，每个包括胎圈芯3a和胎圈填料3b; 围绕胎圈芯3a延伸的胎体帘布层5; 以及布置在胎体帘布层5的内周侧的内衬4，其特征在于，胎体帘布层5从胎圈芯3a的外侧沿着轮胎的宽度方向向内侧向着卷绕方向 轮胎宽度的变形抑制层7和被配置为抑制胎体帘布层5的卷绕端部5a的变形的变形抑制层7设置在胎圈填料3b和胎体帘布层5之间，以与胎圈帘布层5的卷绕端部5a重叠 胴体层5。

公开(公告)号：US08939185B2

公开(公告)日：2015-01-27

申请号：US13496432

申请日：2010-09-16

Applicant: Toshiharu Ito

Inventor： Toshiharu Ito

IPC: B60C15/06 ,  B60C15/00

CPC classification number: B60C15/06 ,  B60C15/0009 ,  B60C15/0027 ,  B60C15/0603 ,  B60C15/0607 ,  B60C2015/009 ,  B60C2015/061 ,  B60C2015/0614 ,  Y10T152/10828 ,  Y10T152/10837 ,  Y10T152/10846

Abstract: Provided is a pneumatic radial tire having a rubber chafer arranged on the carcass ply in a contacting area of a bead portion with a rim; a bead filler arranged radially outside on the bead core; and a side rubber extending along an outer surface of the carcass in each a side wall portion. When inflated with a predetermined pneumatic pressure, an outer end of the folded portion of the carcass and an outer end of the bead filler are placed inward from an outer end r of a rim flange of the rim in the radial direction; an outer end of the rubber chafer is placed outward from the outer end r of the rim flange in the radial direction; and a part of a side rubber located outward from the outer end of the rim flange in the radial direction is disposed between the rubber chafer.

Abstract translation: 本发明提供一种充气子午线轮胎，其具有在胎圈部与轮辋的接触区域中布置在胎体帘布层上的橡胶胎圈包布; 在胎圈芯上径向外侧布置的胎圈填料; 以及在每个侧壁部分中沿着胎体的外表面延伸的侧橡胶。 当以预定的气压膨胀时，胎体的折叠部分的外端和胎圈填料的外端从轮辋的轮辋凸缘的外端r在径向方向上向内放置; 橡胶胎圈包布的外端沿径向从边缘凸缘的外端r向外放置; 并且沿着径向从轮辋凸缘的外端向外定位的侧橡胶的一部分设置在橡胶胎圈包布之间。

公开(公告)号：US20140196828A1

公开(公告)日：2014-07-17

申请号：US14154872

申请日：2014-01-14

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tatsuya MIYAZAKI

IPC: B60C15/06

CPC classification number: B60C15/06 ,  B60C2001/005 ,  B60C2015/0614 ,  C08K3/04 ,  C08K2201/006 ,  C08L9/00 ,  Y10T152/10828

Abstract: Provided are a rubber composition for a canvas chafer which, despite being low cost, is excellent in rim chafing resistance, resistance to rim damage, and processability (sheeting processability, rubber flow in the tire, adhesion to adjacent components) and performs well with respect to low heat build-up, and a pneumatic tire including the composition. The invention relates to a rubber composition for a canvas chafer, including: an isoprene-based rubber; a carbon black having an N2SA of 65-200 m2/g; and sulfur, wherein an amount of the isoprene-based rubber is 25-80% by mass and an amount of butadiene rubber is not more than 40% by mass, each based on 100% by mass of a rubber component of the rubber composition, and an amount of the carbon black is 40-80 parts by mass and an amount of the sulfur is 1.0-2.7 parts by mass, each per 100 parts by mass of the rubber component.

Abstract translation: 本发明提供一种用于帆布胎圈包布的橡胶组合物，尽管成本低廉，但是轮辋耐擦伤性，耐轮辋损伤和加工性（片材加工性，轮胎中的橡胶流动，与相邻部件的粘附性）优异，并且表现良好 低热积聚，以及包含该组合物的充气轮胎。 本发明涉及一种用于帆布衬垫包布的橡胶组合物，包括：异戊二烯橡胶; 具有65-200m 2 / g的N 2 SA的炭黑; 和硫，其中异戊二烯类橡胶的量为25〜80质量％，丁二烯橡胶的量为40质量％以下，均以橡胶组合物的橡胶成分100质量％计， 并且相对于100质量份的橡胶成分，炭黑的量为40〜80质量份，硫的量为1.0〜2.7质量份。

公开(公告)号：US20140138015A1

公开(公告)日：2014-05-22

申请号：US14163244

申请日：2014-01-24

Applicant: BRIDGESTONE CORPORATION

Inventor： Jyunya ASARI

IPC: B29D30/38 ,  B60C15/06

CPC classification number: B29D30/38 ,  B29D2030/0066 ,  B60C15/0628 ,  B60C15/0635 ,  B60C2015/0646 ,  Y10T152/10828

Abstract: The present invention provides a tire having improved durability of a bead portion. Specifically, the present invention provides a tire having: at least one layer of carcass, including a carcass main body extending in a toroidal shape across a pair of bead cores and a carcass turn-up portion continuous with the carcass main body and wound around each bead core from the inner side toward the outer side in the tire widthwise direction and; at least two layers of textile chafer disposed on the tire-radial direction inner surface of the carcass with respect to the bead core; and at least one layer of wire chafer, characterized in that: in a state where the tire is assembled with a “design rim” prescribed in TRA and inflated at an inner pressure of 50 kPa and, providing that the center of a flange curvature of the rim is P and the outer most end in the tire radial direction of a portion covering the carcass main body, of the textile chafer, is A, an angle θ formed by a line passing P and in parallel with the tire rotation axis, with respect to a line linking P and A, is in a range of 20°≦θ≦60°.

Abstract translation: 本发明提供一种胎圈部耐久性提高的轮胎。 具体而言，本发明提供一种轮胎，其具有：至少一层胎体，其包括沿着一对胎圈芯以环形形状延伸的胎体主体和与胎体主体连续地缠绕的胎体翻转部， 胎圈芯从轮胎宽度方向的内侧朝向外侧; 至少两层纺织物胎圈包布设置在胎体相对于胎圈芯的轮胎径向内表面上; 以及至少一层电线胎圈包布，其特征在于，在轮胎组装有在TRA中规定的“设计边缘”并且在内部压力为50kPa下充气的状态下，并且提供凸缘曲率的中心 边缘是P，并且覆盖胎体主体的部分在轮胎径向方向上的最外端是纺织品胎圈包布，是A，角度和角度; 相对于连接P和A的线，通过P并与轮胎旋转轴线平行的线形成在20°和1°的范围内;＆amp; nlE; 60°。

公开(公告)号：US20140130954A1

公开(公告)日：2014-05-15

申请号：US13674184

申请日：2012-11-12

Applicant: THE GOODYEAR TIRE & RUBBER COMPANY

Inventor： Luisa Fernanda Munoz Mejia ,  Manfred Josef Jung ,  Carlo Kanz

IPC: B60C1/00

CPC classification number: B60C11/0332 ,  B60C1/0025 ,  B60C15/06 ,  B60C2001/005 ,  C08K3/04 ,  C08K2201/006 ,  C08K2201/014 ,  C08L7/00 ,  C08L9/00 ,  Y10T152/10828 ,  Y10T152/10846

Abstract: The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between the bead components, a pair of sidewalls overlying the carcass, and a rubber chafer adjacent to each of the sidewalls and positioned around at least a portion of each of the bead components and intended for contacting a rigid rim of a wheel, wherein the chafers comprise 100 parts by weight of elastomer; 20 to 60 phr of a low surface area carbon black having an Iodine absorption value in a range of from about 10 to about 50 as measured by ASTM D1510; 20 to 60 phr of a high surface area carbon black having an Iodine absorption value in a range of from about 100 to about 300 g/kg as measured by ASTM D1510; wherein the sidewalls comprise 100 phr of the same elastomer used in the chafers; 20 to 60 phr of the same low surface area carbon black used in the chafers; 10 to 20 phr of the same high surface area carbon black used in the chafers; wherein the weight ratio of high surface area carbon black in the chafer to high surface area carbon black in the sidewall is greater than 1.

Abstract translation: 本发明涉及一种具有一对间隔开的胎圈部件的充气轮胎，胎圈部件之间的连接胎体，覆盖在胎体上的一对侧壁，以及邻近每个侧壁并且围绕至少一部分 的每个胎圈部件并且用于接触车轮的刚性边缘，其中所述鞋底包含100重量份的弹性体; 20至60phr通过ASTM D1510测量的碘表面积炭黑的碘吸收值在约10至约50的范围内; 20至60phr通过ASTM D1510测量的具有在约100至约300g / kg范围内的碘吸收值的高表面积炭黑; 其中所述侧壁包含100phr在所述芯片中使用的相同的弹性体; 20至60phr在晶圆中使用的相同的低表面积炭黑; 10至20phr在晶圆中使用的相同的高表面积炭黑; 其中胎圈包布中高表面积炭黑与侧壁中高表面积炭黑的重量比大于1。