公开(公告)号：EP2810790A4

公开(公告)日：2015-05-27

申请号：EP12828739

申请日：2012-08-24

申请人： BRIDGESTONE CORP

发明人： KUWAYAMA ISAO ,  MATSUMOTO HIROYUKI ,  HATANAKA SHINTARO

IPC分类号： B60C3/04 ,  B60C13/00 ,  B60C15/06

CPC分类号： B60C3/04 ,  B60C9/08 ,  B60C13/00 ,  B60C15/04 ,  B60C15/0603 ,  B60C2009/0425 ,  B60C2013/007 ,  B60C2015/061

公开(公告)号：EP3205515A4

公开(公告)日：2017-10-11

申请号：EP15848807

申请日：2015-09-08

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  KUWAYAMA ISAO

IPC分类号： B60C11/12 ,  B60C3/04 ,  B60C9/08 ,  B60C11/00 ,  B60C11/03

CPC分类号： B60C11/0332 ,  B60C3/04 ,  B60C11/0008 ,  B60C11/03 ,  B60C11/0306 ,  B60C11/032 ,  B60C11/1236 ,  B60C2011/0016 ,  B60C2011/0025 ,  B60C2011/0341 ,  B60C2011/0353 ,  Y02T10/862

摘要： A passenger vehicle pneumatic radial tire that achieves improved wet performance and rolling resistance performance in a narrow-width, large-diameter radial tire is provided. When the tire is attached to a rim and set to an internal pressure of 250 kPa or more, a ratio SW/OD between a sectional width SW and an outer diameter OD (mm) of the tire is 0.26 or less in the case where the sectional width SW of the tire is less than 165 (mm), and SW and OD satisfy a relationship 2.135 × SW + 282.3 ‰¤ OD in the case where SW is 165 (mm) or more. The tread rubber has dynamic storage modulus E' of 6.0 MPa to 12.0 MPa, and loss tangent tan´ of 0.05 to 0.15. In at least one land portion, a plurality of sipes are arranged with a predetermined pitch length L, and a land portion width W, a tire widthwise sipe component total length Ws ‰¤ of the sipes within one pitch area of the pitch length L, the pitch length L, and a tire circumferential sipe component total length Ls of the sipes within one pitch area of the pitch length L satisfy relationships 0.4W ‰¤ Ws ‰¤ 1.2W and 0.6L ‰¤ Ls ‰¤ 3L.

公开(公告)号：EP3064373A4

公开(公告)日：2016-11-09

申请号：EP14857635

申请日：2014-07-01

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  KUWAYAMA ISAO

IPC分类号： B60C9/22 ,  B60C9/20 ,  B60C9/28 ,  B60C11/02 ,  B60C15/00

CPC分类号： B60C9/20 ,  B60C9/02 ,  B60C9/2009 ,  B60C9/22 ,  B60C9/28 ,  B60C11/02 ,  B60C11/03 ,  B60C11/04 ,  B60C15/00 ,  B60C15/0036 ,  B60C15/0045 ,  B60C2009/2016 ,  B60C2009/2019 ,  B60C2009/2022 ,  B60C2009/2233 ,  B60C2009/2261 ,  B60C2009/2266 ,  B60C2011/0353

摘要： A pneumatic tire (10) is formed to include a tread portion (11). The pneumatic tire (10) includes a carcass (15), an inclined belt (16), and a circumferential belt (17). The inclined belt (16) is formed by one or more inclined belt layers (16a, 16b) including cords inclined relative to the tire circumferential direction. A circumferential main groove (14) is provided in the tread portion (11). The inclined belt (16) includes a high-angle inclined belt layer (16a) in which the cords are at an inclination angle of 35° or more to 90° or less relative to the tire circumferential direction. In at least one tread half portion, an edge of the high-angle inclined belt layer (16a) in the tire width direction is positioned further outward in the tire width direction than the circumferential main groove (14) disposed furthest outward in the tire width direction. The interval in the tire width direction from the edge to the center of the circumferential main groove (14) is 0.2W 1 or more to 0.35W 1 or less, where W 1 is the width of the high-angle inclined belt layer (16a) in the tire width direction.

公开(公告)号：EP2738016A4

公开(公告)日：2015-09-02

申请号：EP12817559

申请日：2012-07-27

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  MATSUMOTO HIROYUKI ,  KUWAYAMA ISAO ,  WATANABE JUN ,  HIURA SHINGO

IPC分类号： B60C3/04 ,  B60C11/03 ,  B60C11/04 ,  B60C11/12

CPC分类号： B60C11/1272 ,  B60C3/04 ,  B60C11/0302 ,  B60C11/0311 ,  B60C11/0327 ,  B60C2011/0358 ,  B60C2011/036

公开(公告)号：EP3305557A4

公开(公告)日：2018-05-30

申请号：EP16799511

申请日：2016-04-14

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO

IPC分类号： B60C11/12 ,  B60C11/03 ,  B60C11/04

CPC分类号： B60C11/03 ,  B60C11/04 ,  B60C11/12 ,  B60C11/1259 ,  B60C2011/0341 ,  B60C2011/0355 ,  B60C2011/0386 ,  B60C2011/0388 ,  B60C2011/1227 ,  B60C2011/1254

摘要： Provided is a pneumatic tire that improves tire circumferential rigidity of a land portion in a tread portion and that also improves wet performance. The pneumatic tire includes, on a tread surface, at least two circumferential main grooves and at least one rib-like land portion defined by two of the circumferential main grooves. The rib-like land portion includes neither grooves nor sipes that extend to include a widthwise center line of the rib-like land portion. The rib-like land portion includes a one-end-open sipe and a both-end-closed sipe, the one-end-open sipe having one end open to one of the circumferential main grooves and another end closed within the rib-like land portion, and the both-end-closed sipe being arranged in the rib-like land portion. The one-end-open sipe has a widthwise sipe portion and a circumferential sipe portion, the widthwise sipe portion extending in tire width direction from one end of the one-end-open sipe and being terminated within the rib-like land portion, and the circumferential sipe portion being located closer to the widthwise center line than the both-end-closed sipe, extending in tire circumferential direction from the widthwise sipe portion, and being terminated at another end of the one-end-open sipe.

公开(公告)号：EP3202596A4

公开(公告)日：2017-09-27

申请号：EP15847158

申请日：2015-08-21

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  KUWAYAMA ISAO

IPC分类号： B60C17/00 ,  B60C3/04 ,  B60C9/28 ,  B60C11/03 ,  B60C15/06

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

摘要： 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.

摘要翻译： 本公开的泄气保用轮胎包括胎面部分，一对胎侧部分，胎圈部分，具有月牙状横截面的侧加强橡胶以及由帘布层径向排列的帘布层形成的胎体，其中：当轮胎安装时 在轮辋上施加250kPa以上的内压时，在轮胎的截面宽度SW小于165mm的情况下，轮胎的截面宽度SW相对于外径OD的比例 轮胎，SW / OD，是0.26或更小; 在轮胎的截面宽度SW为165mm以上的情况下，轮胎的截面宽度SW和外径OD满足以下关系：OD≥2.135×SW + 282.3（mm）; 满足关系式0.5‰¤WG/ WB‰¤0.8。

公开(公告)号：EP2738015A4

公开(公告)日：2015-04-15

申请号：EP12817199

申请日：2012-07-27

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  MATSUMOTO HIROYUKI ,  KUWAYAMA ISAO ,  WATANABE JUN ,  HIURA SHINGO

IPC分类号： B60C3/04 ,  B60C9/00 ,  B60C9/28 ,  B60C11/03

CPC分类号： B60C3/00 ,  B60C3/04 ,  B60C9/28 ,  B60C11/03 ,  B60C11/033 ,  B60C2011/0033 ,  B60C2011/0355 ,  Y02T10/862

摘要： Provided is a pneumatic radial tire for a passenger vehicle, having a carcass constituted of plies as radially-disposed cords and toroidally provided across a pair of bead portions, and including: a belt constituted of one or more belt layers; and a tread, which are disposed in this order on the outside in the radial direction of the carcass, in which: a section width SW and an outer diameter OD of the tire have a ratio of SW/OD‰¤0.26 when SW

摘要翻译： 本发明提供一种乘用车用充气子午线轮胎，其具有由帘布层构成为径向配置的帘线的胎体，并且环状设置在一对胎圈部上，并且包括：由一个或多个带束层构成的带; 胎面在胎体的径向外侧依次设置，其中：SW <165时轮胎的截面宽度SW和外径OD的比率为SW / OD‰¤0.26 （mm），SW和OD满足关系式OD‰¥2.035xSW + 282.3当SW‰¥165（mm）; 并且条件是，V1表示沿着轮胎宽度方向上的最大宽度带束层的宽度方向上的两端在轮胎宽度方向上位于轮胎宽度方向内的橡胶的体积，该最大宽度带层位于轮胎宽度方向上， 径向方向比轮胎宽度方向中心位置处的轮胎径向上的带束层的最外层的加强构件，V2表示在胎面表面形成的所有槽的总体积，V1 V2的比例为V2 / V1‰¤20％。

公开(公告)号：EP3202598A4

公开(公告)日：2017-09-27

申请号：EP15847494

申请日：2015-08-21

申请人： BRIDGESTONE CORP

发明人： KUWAYAMA ISAO ,  HATANAKA SHINTARO

IPC分类号： B60C17/00 ,  B60C3/04 ,  B60C15/06

CPC分类号： B60C3/04 ,  B60C17/0009 ,  B60C2015/061 ,  B60C2017/0054 ,  B60C2017/0072

摘要： The run-flat tire of this disclosure includes a tread portion, a pair of sidewall portions continuous, bead portions, side reinforcing rubbers with crescent-like cross section, and a carcass, 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; and 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 when H1 is a tire radial maximum length of the side reinforcing rubber in a tire widthwise cross section in a reference state where the tire is mounted to a rim, applied a predetermined internal pressure and applied no load, a relation expression 10(mm)‰¤(SW/OD)×H1‰¤20(mm) is satisfied.

摘要翻译： 本公开的泄气保用轮胎包括胎面部，连续的一对胎侧部，胎圈部，具有月牙状横截面的胎侧增强橡胶以及胎体，其中：当轮胎安装至轮辋时，以及 对轮胎施加250kPa以上的内压，在轮胎的截面宽度SW小于165mm的情况下，轮胎的截面宽度SW与轮胎的外径OD之比SW / OD， 是0.26或更小; 并且在轮胎的截面宽度SW为165mm以上的情况下，轮胎的截面宽度SW和外径OD满足以下关系：OD≥2.1335×SW + 282.3（mm）; 在轮胎安装于轮辋的基准状态下的轮胎宽度方向截面中的H1为轮胎径向最大长度的情况下，施加规定的内压而不施加负荷时，将关系式10（mm） （SW / OD）×H1≤20（mm）。

公开(公告)号：EP3130479A4

公开(公告)日：2017-05-31

申请号：EP15798673

申请日：2015-05-28

申请人： BRIDGESTONE CORP

发明人： HATANAKA SHINTARO ,  KUWAYAMA ISAO

IPC分类号： B60C11/00 ,  B60C3/04 ,  B60C9/08

CPC分类号： B60C3/04 ,  B60C11/0041 ,  B60C11/04 ,  B60C11/1236 ,  B60C17/0009 ,  B60C2011/0025 ,  B60C2017/0054 ,  B60C2200/04 ,  Y02T10/862

摘要： Provided is a narrow-width, large-diameter radial tire which is a passenger-vehicle pneumatic radial tire with improved wet performance and rolling resistance performance. When the passenger-vehicle pneumatic radial tire of the disclosure is assembled to a rim and filled with an internal pressure of 250kPa or more, an SW/OD ratio of a sectional width SW to an outer diameter OD(mm) of the tire is 0.26 or less if the tire has a sectional width SW of less than 165(mm), whereas a sectional width SW and an outer diameter OD(mm) of the tire satisfy a relation of 2.135 ×SW+282.3‰¤OD if the tire has a sectional width SW of 165(mm) or more, a dynamic storage modulus E' at 30°C of the tread rubber is 6.0MPa to 12.0MPa and a loss tangent tan´ at 60°C of the tread rubber is 0.05 to 0.15, and a dynamic storage modulus E' at 30 °C of the buttress rubber is 1/2 or less, and a loss tangent tan´ at 60°C of the buttress rubber is 0.1 or less.

摘要翻译： 本发明提供一种窄幅，大直径子午线轮胎，其是具有改善的湿路面性能和滚动阻力性能的客车充气子午线轮胎。 在将本发明的车辆用充气子午线轮胎组装到轮辋并填充250kPa以上的内压的情况下，轮胎截面宽度SW相对于外径OD（mm）的SW / OD比为0.26 或更小，如果轮胎具有小于165（mm）的截面宽度SW，而轮胎的截面宽度SW和外径OD（mm）满足关系式2.135×SW + 282.3×ΔOD 所述胎面胶的断面宽度SW为165（mm）或更大，所述胎面胶在30℃下的动态储能模量E'为6.0MPa至12.0MPa，并且所述胎面胶在60℃下的损耗角正切tan'为0.05至0.15 ，所述支撑橡胶在30℃下的动态储能模量E'为1/2以下，并且所述支撑橡胶在60℃时的损耗角正切tan'为0.1以下。

公开(公告)号：EP3115227A4

公开(公告)日：2017-04-12

申请号：EP15776203

申请日：2015-04-08

申请人： BRIDGESTONE CORP

发明人： KUWAYAMA ISAO ,  HATANAKA SHINTARO ,  KOZUKI KENTARO

IPC分类号： B60C5/14 ,  B60C9/06 ,  B60C19/00

CPC分类号： B60C5/14 ,  B60C9/06 ,  B60C19/002

摘要： To reduce noise while suppressing increase in rolling resistance, without affecting the formation of a carcass line, provided is a pneumatic tire 10 comprising an inner liner 17. The thickness of the inner liner 17 at least in part of a side portion 18 is 1.5 mm or more. When the tire 10 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; and 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.

摘要翻译： 为了在抑制滚动阻力增加的同时降低噪音而不影响胎体线的形成，提供了包括内衬17的充气轮胎10.内衬17的至少部分侧部18的厚度为1.5mm 或者更多。 当轮胎10安装到轮辋并且轮胎内部压力为250kPa或更高时，在轮胎的截面宽度SW小于165mm的情况下，轮胎宽度SW与截面宽度SW之比 轮胎的外径OD / SW为0.26以下， 并且在轮胎的截面宽度SW为165mm以上的情况下，轮胎的截面宽度SW和外径OD满足表达式OD≥2.1335×SW + 282.3的关系。