公开(公告)号：US20170274710A1

公开(公告)日：2017-09-28

申请号：US15508682

申请日：2015-09-03

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao MATSUMOTO ,  Yasutaka IWATA ,  Kentaro YAGYU ,  Fumikazu YAMASHITA ,  Shingo UMEKITA ,  Yasuaki KUNIYASU ,  Hiroaki NINOMIYA

IPC: B60C15/06

Abstract: In the tire 2, fillers 10 are layered over clinches 8 in portions outward of a carcass 14 in the axial direction. A carcass ply 50 is turned up around cores 44. Turned-up portions 50a are disposed between the fillers 10 and apexes 46. Each clinch 8 has a maximum thickness Tcx that is measured along a line normal to an inner surface, in the axial direction, of the clinch 8. A ratio of a thickness Tf1 of the filler 10 to a sum of the thickness Tf1 and the thickness Tcx is greater than or equal to 0.1 and not greater than 0.6. A percentage of a complex elastic modulus E*f of the filler 10 relative to a complex elastic modulus E*a of the apex 46 is greater than or equal to 70% and not greater than 125%.

公开(公告)号：US20170259623A1

公开(公告)日：2017-09-14

申请号：US15605477

申请日：2017-05-25

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao MATSUMOTO

IPC: B60C13/00 ,  B60C13/02

CPC classification number: B60C13/001 ,  B60C13/02

Abstract: A pneumatic tire with a pair of sidewall portions, which comprises at least one of said sidewall portions with a radially outer region being radially outside than a tire maximum width position of its outer surface, the radially outer region being provided with a serration pattern, the serration pattern comprising a first serration group and a second serration group, the first serration group comprising a plurality of concentrically arranged first arc-shaped ridges at regular intervals around a first center point O1, the second serration group comprising a plurality of concentrically arranged second arc-shaped ridges at regular intervals around a second center point O2 that is located radially outside than the first center point O1 of the first serration group, and the first serration group and second serration group arranged in a circumferential direction of the tire so as to overlap partially.

公开(公告)号：US20140158270A1

公开(公告)日：2014-06-12

申请号：US14091531

申请日：2013-11-27

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao MATSUMOTO

IPC: B60C19/00

CPC classification number: B60C9/2009 ,  B60C2009/2016 ,  B60C2009/2019 ,  B60C2009/2038 ,  B60C2009/2041 ,  B60C2015/0614 ,  Y10T152/10765

Abstract: A pneumatic tire having a tread portion, buttress portions, sidewall portions and bead portions, includes bead cores positioned in the bead portions, respectively, a carcass extending from the tread portion through the sidewall portions to the bead cores in the bead portions, a belt layer formed over the carcass in a tire radial direction in the tread portion and including multiple belt plies, and clinch rubbers positioned over the carcass in a tire axial direction in the bead portions, respectively, and forming outer surfaces in the bead portions. Each of the belt plies has belt cords such that the belt cords are tilted at an angle of 15° to 45° with respect to a tire equator, and each of the clinch rubbers has a thickness in a range of 3 to 5 mm measured at a height of 25 mm from a bead base line in the tire radial direction.

Abstract translation: 具有胎面部，支撑部，侧壁部和胎圈部的充气轮胎分别包括胎圈芯，胎圈芯分别设置在胎圈部分中，从胎面部分通过侧壁部分延伸到胎圈部分中的胎圈芯，胎圈 在轮胎径向上形成在胎体上并且包括多个带束层的胎圈，并且在轮胎轴向方向上分别在胎圈部分上定位在胎体上方的橡胶，并且在胎圈部分中形成外表面。 每个带束层具有带束帘线，使得带帘线相对于轮胎赤道以15°至45°的角度倾斜，并且每个搭扣橡胶的厚度在3至5mm的范围内， 在轮胎径向上距胎圈基线25mm的高度。

公开(公告)号：US20160272013A1

公开(公告)日：2016-09-22

申请号：US15034627

申请日：2014-10-24

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Chieko AOKI ,  Toru FUKUMOTO ,  Tadao MATSUMOTO

IPC: B60C15/04 ,  B60C15/06 ,  B60C15/02 ,  B60C9/02

CPC classification number: B60C15/04 ,  B60C9/00 ,  B60C9/02 ,  B60C15/02 ,  B60C15/0603 ,  B60C17/0009 ,  B60C2015/042 ,  B60C2015/046 ,  D02G3/48 ,  D07B1/0613 ,  D07B1/0646 ,  D07B2201/1016 ,  D07B2201/1092 ,  D07B2201/2006 ,  D07B2401/2005 ,  D07B2501/2053

Abstract: [Object] To provide a pneumatic tire 22 that allows a low fitting pressure to be achieved without impairing a tightening force.[Solution] The tire 22 includes a pair of beads 30 and a carcass 32 extending on and between both beads 30. Each bead 30 includes a core 48. The core 48 includes: a main body 56 including a cord 60 extending in a circumferential direction; and a stretchable portion 58 formed from a crosslinked rubber. The stretchable portion 58 is located inward of the main body 56 in an axial direction. The stretchable portion 58 has a size with which at least one cross-section of the cord 60 can be included therein in a cross-section of the bead 30. Preferably, in the tire 22, the main body 56 includes a hard unit and a soft unit. The soft unit is located outward of the hard unit in a radial direction. A hard cord of the hard unit stretches more easily than a soft cord of the soft unit.

Abstract translation: [解决方案]轮胎22包括一对胎圈30和在两个胎圈30之间延伸的胎体32.每个胎圈30包括芯48.芯48包括：主体56，主体56包括沿圆周方向延伸的绳索60 ; 以及由交联橡胶形成的伸缩部58。 伸缩部58沿轴向位于主体56的内侧。 可拉伸部分58具有在胎圈30的横截面中可以包含帘线60的至少一个横截面的尺寸。优选地，在轮胎22中，主体56包括硬质单元和 软单位 软单元位于硬单元的径向外侧。 硬单元的硬绳比软单元的软线更容易伸展。

公开(公告)号：US20130263992A1

公开(公告)日：2013-10-10

申请号：US13793969

申请日：2013-03-11

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao MATSUMOTO

IPC: B60C13/02

CPC classification number: B60C13/02 ,  B60C13/001 ,  Y02T10/862

Abstract: A pneumatic tire is provided in the outer surface of each sidewall portion with a serrated zone formed by a number of serration grooves extending at an angle of at most 45 degrees with respect to the tire radial direction. Each of the serration grooves has a variable depth such that the deepest point lies between the radially outermost end and innermost end of the serration groove. The deepest point is positioned in a range between 0.2 time and 0.4 times a radial distance Ha from the maximum carcass section width position to the radially outermost end of the tire. As a result, the rolling resistance of the tire can be reduced.

Abstract translation: 在每个侧壁部分的外表面上设置有由相对于轮胎径向以最多45度的角度延伸的多个锯齿沟形成的锯齿形区域的充气轮胎。 每个锯齿槽具有可变深度，使得最深点位于锯齿槽的径向最外端和最内端之间。 最深点位于从最大胎体截面宽度位置到轮胎的径向最外端的径向距离Ha的0.2倍和0.4倍之间的范围内。 结果，可以降低轮胎的滚动阻力。

公开(公告)号：US20210001669A1

公开(公告)日：2021-01-07

申请号：US16896058

申请日：2020-06-08

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Tadao MATSUMOTO

IPC: B60C11/03

Abstract: A tyre includes a tread portion being provided with at least one main groove extending in a tyre circumferential direction and at least one lateral groove connected to the at least one main groove. The at least one main groove includes an intersection to which the lateral groove is connected. One of groove walls of the at least one main groove or the at least one lateral groove is provided with projections protruding toward the intersection.

公开(公告)号：US20140283968A1

公开(公告)日：2014-09-25

申请号：US13963228

申请日：2013-08-09

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadao MATSUMOTO

IPC: B60C13/00

CPC classification number: B60C13/001 ,  B60C13/02

Abstract: A pneumatic tire with a pair of sidewall portions, which comprises at least one of said sidewall portions with a radially outer region being radially outside than a tire maximum width position of its outer surface, the radially outer region being provided with a serration pattern, the serration pattern comprising a first serration group and a second serration group, the first serration group comprising a plurality of concentrically arranged first arc-shaped ridges at regular intervals around a first center point O1, the second serration group comprising a plurality of concentrically arranged second arc-shaped ridges at regular intervals around a second center point O2 that is located radially outside than the first center point O1 of the first serration group, and the first serration group and second serration group arranged in a circumferential direction of the tire so as to overlap partially.

Abstract translation: 一种具有一对侧壁部分的充气轮胎，其包括至少一个所述侧壁部分，其中径向外部区域在其外表面的轮胎最大宽度位置的径向外侧，径向外部区域设置有锯齿形图案， 锯齿图案包括第一锯齿组和第二锯齿组，所述第一锯齿组包括围绕第一中心点O1以规则间隔的多个同心布置的第一弧形脊，所述第二锯齿组包括多个同心布置的第二弧 围绕第一中心点O2位于第一中心点O1的径向外侧的第二中心点O2以及沿轮胎的圆周方向布置的第一锯齿组和第二锯齿组， 部分地。