公开(公告)号：US20170297383A1

公开(公告)日：2017-10-19

申请号：US15512744

申请日：2015-08-21

Applicant: BRIDGESTONE CORPORATION

Inventor： Shintaro HATANAKA ,  Isao KUWAYAMA

IPC: B60C17/00 ,  B60C3/04 ,  B60C11/03

CPC classification number: B60C17/0009 ,  B60C3/04 ,  B60C9/28 ,  B60C2011/0341 ,  B60C2011/0353 ,  B60C2015/061 ,  B60C2017/0054 ,  B60C2017/0072

Abstract: The run-flat tire of this disclosure includes a tread portion, a pair of sidewall portions, bead portions, side reinforcing rubbers with crescent-like cross section, and a carcass formed of plies of radially arranged cords, wherein: when the tire is mounted to a rim, and an internal pressure of 250 kPa or more is applied to the tire, in a case where a sectional width SW of the tire is less than 165 mm, a ratio of the sectional width SW to an outer diameter OD of the tire, SW/OD, is 0.26 or less; in a case where the sectional width SW of the tire is 165 mm or more, the sectional width SW and the outer diameter OD of the tire satisfy a relation expression OD≧2.135×SW+282.3 (mm); and the relation expression 0.5≦WG/WB≦0.8 is satisfied.

公开(公告)号：US20170291459A1

公开(公告)日：2017-10-12

申请号：US15511759

申请日：2015-08-21

Applicant: BRIDGESTONE CORPORATION

Inventor： Isao KUWAYAMA ,  Shintaro HATANAKA

IPC: B60C17/00 ,  B60C3/04

CPC classification number: B60C17/0009 ,  B60C3/04 ,  B60C2015/061 ,  B60C2017/0054 ,  B60C2017/0072

Abstract: The run-flat tire of this disclosure includes a tread portion, a pair of sidewall portions, bead portions, side reinforcing rubbers with crescent-like cross section, a carcass formed of plies of radially arranged cords, wherein: when the tire is mounted to a rim, and an internal pressure of 250 kPa or more is applied to the tire, in a case where a sectional width SW of the tire is less than 165 mm, a ratio of the sectional width SW to an outer diameter OD of the tire, SW/OD, is 0.26 or less; in a case where the sectional width SW of the tire is 165 mm or more, the sectional width SW and the outer diameter OD of the tire satisfy a relation expression OD≧2.135×SW+282.3 (mm); the bead portions have bead cores, and further have bead fillers; and the relation expression 1.8≦H1/H2≦3.5 is satisfied.

公开(公告)号：US20170100969A1

公开(公告)日：2017-04-13

申请号：US15129083

申请日：2015-02-19

Applicant: Bridgestone Corporation

Inventor： Masafumi YOKOYAMA

IPC: B60C17/00 ,  B60C3/06 ,  B60C19/00

CPC classification number: B60C17/0009 ,  B60C3/04 ,  B60C3/06 ,  B60C15/06 ,  B60C19/001 ,  B60C2017/0072

Abstract: A run-flat radial tire having a tire cross-section height of 115 mm or greater including: a carcass spanning between a pair of bead portions; a vehicle mounting direction outer side side-reinforcing rubber layer that is provided to a tire side portion at a vehicle mounting direction outer side and that extends in a tire radial direction along an inner face of the carcass; and a vehicle mounting direction inner side side-reinforcing rubber layer that is provided to a tire side portion at a vehicle mounting direction inner side and that extends in the tire radial direction along an inner face of the carcass, a tire radial direction outer side end portion of the vehicle mounting direction inner side side-reinforcing rubber layer being closer to a tire equatorial plane than a tire radial direction outer side end portion of the vehicle mounting direction outer side side-reinforcing rubber layer.

公开(公告)号：US20170036494A1

公开(公告)日：2017-02-09

申请号：US15304065

申请日：2015-02-06

Applicant: BRIDGESTONE CORPORATION

Inventor： Gaku OGAWA

IPC: B60C17/00 ,  B60C9/20 ,  B60C9/30

CPC classification number: B60C17/0009 ,  B60C9/20 ,  B60C9/28 ,  B60C9/30 ,  B60C2009/2012 ,  B60C2009/2038 ,  B60C2017/0072

Abstract: A run-flat radial tire is provided with a side reinforcement rubber layer that extends in the tire radial direction along an inner face of a carcass and an angled belt layer that is provided at the tire radial direction outer side of the carcass. An overlap length L between a maximum width angled belt layer and the side reinforcement rubber layer satisfies the relationship L>0.14× SH with a tire section height SH. A thickness GD of the side reinforcement rubber layer at a position that is 14% of the tire section height to the tire axial direction inner side from a tire axial direction end portion of the maximum width angled belt layer and a thickness GA of the side reinforcement rubber layer at a maximum width position of the carcass satisfy the relationship GD/GA≧0.3.

Abstract translation: 扁平的子午线轮胎设置有沿着胎体的内表面沿轮胎径向延伸的侧面增强橡胶层和设置在胎体的轮胎径向外侧的成角度的带束层。 最大宽度成角度的带束层和侧面增强橡胶层之间的重叠长度L满足具有轮胎截面高度SH的关系L> 0.14×SH。 在从最大宽度成角度的带束层的轮胎轴向端部到轮胎轴向内侧的轮胎截面高度的14％的位置处的侧面增强橡胶层的厚度GD和侧部加强件的厚度GA 胎体的最大宽度位置处的橡胶层满足关系GD /GA≥0.3。

公开(公告)号：US20160121664A1

公开(公告)日：2016-05-05

申请号：US14527145

申请日：2014-10-29

Applicant: BRIDGESTONE CORPORATION

Inventor： Young Chul PARK

IPC: B60C17/00

CPC classification number: B60C17/0009 ,  B60C9/0207 ,  B60C15/0009 ,  B60C17/00 ,  B60C2013/007 ,  B60C2015/061 ,  B60C2017/0072

Abstract: A run-flat tire ensures run-flat durability with a reduced weight. A tire radial outermost carcass ply of two or more carcass plies has tire widthwise inner ends in a crown portion. A bead filler and side reinforcing rubber have an overlapping part in the tire width direction. In a cross section of the run-flat tire in the tire width direction in a state where the run-flat tire is attached to an applicable rim, filled to a specified internal pressure, and placed under no load, a thickness d1 of a sidewall portion at a midpoint in the tire radial direction between a maximum width position of the run-flat tire and a tire radial outermost position of a bead core is greater than a thickness d2 of the sidewall portion at a midpoint in the tire radial direction between the maximum width position of the run-flat tire and a tread edge.

Abstract translation: 防滑轮胎确保了平衡的耐用性，减轻重量。 两个或多个胎体帘布层的轮胎径向最外侧的胎体帘布层在胎冠部分具有轮胎宽度方向的内端。 胎圈填料和侧面增强橡胶在轮胎宽度方向上具有重叠部分。 在漏气保用轮胎安装在适用边缘的状态下，在漏气轮胎在轮胎宽度方向上的横截面中，填充到规定的内部压力，并且设置在无负载下时，侧壁的厚度d1 在轮胎径向上的中点处的断面轮胎的最大宽度位置与胎圈芯的轮胎径向最外侧位置之间的部分大于胎圈芯部的轮胎径向中点处的侧壁部分的厚度d2 漏气保用轮胎的最大宽度位置和胎面边缘。

公开(公告)号：US09290064B2

公开(公告)日：2016-03-22

申请号：US13845616

申请日：2013-03-18

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Kenji Horiuchi

IPC: B60C17/00 ,  B60C17/08

CPC classification number: B60C17/00 ,  B60C17/0009 ,  B60C17/0027 ,  B60C2013/006 ,  B60C2013/007 ,  B60C2015/061 ,  B60C2017/0063 ,  B60C2017/0072

Abstract: In a pneumatic tire, a height from a turned-up edge of a carcass layer is not more than 10 mm, a distance from a tire outer surface to the carcass layer is not less than 50% of the total gauge, a height of the bead filler is from 50% to 80% of a tire cross-section height, a cross-sectional area ratio VB/VR of the bead filler to a side reinforcing layer is not less than 0.4 and not more than 0.6, a hardness HsB of the bead filler is not less than 65 and not more than 80, and the hardness HsR of the side reinforcing layer is not less than 75 and not more than 85, a size relationship between the hardness HsB and the hardness HsR is HsB≦HsR, a value TB of tan δ is not more than 0.06, and a value TR of tan δ is not more than 0.05.

Abstract translation: 在充气轮胎中，从胎体层的翻边的高度不大于10mm，从轮胎外表面到胎体层的距离不小于总规的50％，高度 胎圈填料的轮胎横截面高度为50％至80％，胎边填料与侧面增强层的横截面积比VB / VR不小于0.4且不大于0.6，硬度HsB为 珠填料不小于65且不大于80，侧面增强层的硬度HsR不小于75且不大于85，硬度HsB和硬度HsR之间的尺寸关系为HsB＆nlE; HsR， tanδ的值TB不大于0.06，tanδ的值TR不大于0.05。

公开(公告)号：US20160001601A1

公开(公告)日：2016-01-07

申请号：US14767325

申请日：2014-02-28

Applicant: BRIDGESTONE CORPORATION

Inventor： Yuji OYAMA

IPC: B60C9/00 ,  B60C15/00 ,  C09J163/00 ,  B60C17/00

CPC classification number: B60C9/0042 ,  B60C15/0036 ,  B60C17/0009 ,  B60C2009/0071 ,  B60C2009/0475 ,  B60C2015/009 ,  B60C2015/061 ,  B60C2015/0614 ,  B60C2017/0054 ,  B60C2017/0072 ,  C09J163/00

Abstract: Provided is a pneumatic safety tire in which the durability is improved by improving the compression fatigue property of a carcass ply cord.The pneumatic safety tire includes, as a skeleton, a carcass, and a side reinforcing rubber. Provided that the area of the side reinforcing rubber is S1, the area of a bead filler is S2, and the area of a rubber chafer is S3, the following expressions (1) and (2) are satisfied: 0.10≦(S2+S3)/S1≦2.50  (1) 0≦S2/(S2+S3)≦0.9  (2), a reinforcing cord of a carcass ply is composed of a polyester fiber and/or an aramid fiber, and subjected to an adhesive agent treatment in which an adhesive agent containing at least one of a thermoplastic polymer, a heat reactive aqueous urethane resin, and an epoxide compound is used for a first bath, an RFL-based adhesive agent is used for a second bath, and a principal chain of the thermoplastic polymer substantially fails to include a double bond between carbons having an addition reactivity, is composed of an ethylene addition polymer and/or a urethane-based high molecular weight polymer, each of which is composed mostly of a linear chain structure, and includes a cross-linkable functional group as a pendant group.

Abstract translation: 提供一种气动安全轮胎，其中通过提高胎体帘布层帘线帘线的压缩疲劳性能来提高耐久性。 气动安全轮胎包括作为骨架的胎体和侧面增强橡胶。 如果侧面加强橡胶的面积为S1，则胎圈填料的面积为S2，橡胶胎圈包布的面积为S3，满足以下表达式（1）和（2）：0.10＆nlE;（S2 + S3）/S1＆nlE; 2.50（1）0＆nlE; S2 /（S2 + S3）＆nlE; 0.9（2），胎体帘布层的加强帘线由聚酯纤维和/或芳族聚酰胺纤维构成， 将含有热塑性聚合物，热反应性水性聚氨酯树脂和环氧化合物中的至少一种的粘合剂用于第一浴的试剂处理中，将RFL型粘合剂用于第二浴， 热塑性聚合物链基本上不能包含具有添加反应性的碳之间的双键，由乙烯加成聚合物和/或氨基甲酸酯基高分子量聚合物组成，其各自主要由直链结构组成， 并且包括可交联官能团作为侧基。

公开(公告)号：US20150083296A1

公开(公告)日：2015-03-26

申请号：US14487391

申请日：2014-09-16

Applicant: Bridgestone Americas Tire Operations, LLC

Inventor： Robert Asper

IPC: B60C13/00 ,  B60C15/00 ,  B60C7/10

CPC classification number: B60C15/0045 ,  B60C15/06 ,  B60C17/0009 ,  B60C17/0018 ,  B60C2009/1878 ,  B60C2017/0063 ,  B60C2017/0072 ,  B60C2017/0081

Abstract: A tire includes a tread formed in a crown region of the tire and sidewall regions extending from the crown region to bead areas. The tire further includes a toroidal element extending across a crown region of the tire, and further extending along at least a portion of each sidewall region of the tire. The toroidal element has a central region located between inner and outer regions. The central region is more elastic than the inner and outer regions.

Abstract translation: 轮胎包括形成在轮胎的冠部区域中的胎面和从冠部区域延伸到胎圈区域的侧壁区域。 轮胎还包括延伸穿过轮胎的冠部区域的环形元件，并且还沿着轮胎的每个侧壁区域的至少一部分延伸。 环形元件具有位于内部和外部区域之间的中心区域。 中心区域比内外区域更具弹性。

公开(公告)号：US20150075691A1

公开(公告)日：2015-03-19

申请号：US14389882

申请日：2013-04-02

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

Inventor： Jose Merino Lopez ,  Michel Ahouanto ,  Serge Lefebvre ,  Julien Flament

IPC: B60C19/12 ,  B60C1/00 ,  B60C15/06 ,  B60C15/04

CPC classification number: B60C19/12 ,  B29C73/163 ,  B60C1/00 ,  B60C1/0008 ,  B60C15/0009 ,  B60C15/04 ,  B60C15/06 ,  B60C15/0603 ,  B60C17/0009 ,  B60C19/122 ,  B60C23/04 ,  B60C2015/009 ,  B60C2015/048 ,  B60C2015/061 ,  B60C2015/0614 ,  B60C2015/0617 ,  B60C2015/0621 ,  B60C2017/0072 ,  Y10T152/10666 ,  Y10T152/10675 ,  Y10T152/10684 ,  Y10T152/10828 ,  Y10T152/10837 ,  Y10T152/10846

Abstract: A tyre has a form of a torus that is open radially on an inside portion. The tyre includes inner and outer walls, a crown, two sidewalls, two beads, a crown reinforcement, and a carcass reinforcement anchored in the beads and extending at least from the beads as far as the crown. The inner wall is covered at least in part with an airtight layer, and the airtight layer is covered at least in part with a layer of a self-sealing product. Each of the beads includes an annular reinforcing structure, with each annular reinforcing structure being formed of a plurality of windings of a single metal thread. The windings are arranged in a plurality of radially superposed layers, with each layer having a group of the windings arranged axially in a side by side manner, such that the superposed layers have a hexagonal cross section.

Abstract translation: 轮胎具有在内侧部分径向开口的圆环形式。 轮胎包括内壁和外壁，冠部，两个侧壁，两个胎圈，胎冠加强件和锚固在胎圈中的胎体增强件，至少从胎冠延伸至冠部。 内壁至少部分地被气密层覆盖，并且气密层至少部分地被一层自密封产品覆盖。 每个珠包括环形加强结构，每个环形加强结构由单个金属线的多个绕组形成。 绕组被布置在多个径向叠置的层中，每个层具有一组并排的并排的轴向排列，使得重叠层具有六边形横截面。

公开(公告)号：US06609550B2

公开(公告)日：2003-08-26

申请号：US09947447

申请日：2001-09-07

Applicant: Kazuya Suzuki

Inventor： Kazuya Suzuki

IPC: B60C1300

CPC classification number: B60C15/0018 ,  B60C9/09 ,  B60C15/06 ,  B60C17/0018 ,  B60C2017/0063 ,  B60C2017/0072 ,  Y10T152/10837 ,  Y10T152/10846 ,  Y10T152/10864

Abstract: A pneumatic tire comprises a rubber bead apex extending radially outwards from a bead core; a carcass composed of an inside carcass ply and an outside carcass ply, the inside carcass ply turned up around the bead core in each bead portion from the tire inside to the tire outside to form a pair of turned up portions and a main portion therebetween, the outside carcass ply extending to a position between the bead apex and the turned up portion; a steel cord reinforcing layer comprising an axially inner portion and an axially outer portion which extend radially outwardly from the bead core underside into the sidewall portion; the sidewall portion provided with an axially inner reinforcing rubber layer disposed axially inside the inside carcass ply's main portion, and an axially outer reinforcing rubber layer disposed between the outside carcass ply and the steel cord reinforcing layer's axially outer portion.

Abstract translation: 充气轮胎包括从胎圈芯径向向外延伸的橡胶胎圈三角形; 由内侧胎体帘布层和外部胎体帘布层构成的胎体，胎圈帘布层从轮胎内侧到轮胎外侧在胎圈部的胎圈芯的周围卷绕，形成一对折起部和主体部， 所述外侧胎体帘布层延伸到所述胎圈三角形和所述卷起部之间的位置; 钢帘线增强层，包括轴向内部和轴向外部，其从胎圈芯下侧径向向外延伸到侧壁部分中; 所述侧壁部分设置有轴向内部增强橡胶层，所述轴向内部增强橡胶层轴向设置在所述胎体帘布层内部的主要部分内，以及轴向外部增强橡胶层，其设置在所述外部胎体帘布层和所述钢丝帘线增强层的轴向外部之间。