公开(公告)号：US20180370290A1

公开(公告)日：2018-12-27

申请号：US16002577

申请日：2018-06-07

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Eisuke HIROSUE ,  Hiroshi KIKUCHI ,  Tomohisa KURIYAMA

IPC: B60C11/03 ,  B60C11/12 ,  B60C11/13

Abstract: A tire includes a tread portion including at least one land portion having axially spaced first and second ends. The at least one land portion is provided with lateral grooves extending from the first end to terminal ends terminating within the at least one land portion, first sipes each extending along a tire circumferential direction to connect a pair of lateral grooves arranged adjacently in the tire circumferential direction, second sipes extending from the first end toward the first sipes, and third sipes extending from the second end toward the first sipes. The second sipes and the third sipes are arranged without intersecting the lateral grooves.

公开(公告)号：US20170057301A1

公开(公告)日：2017-03-02

申请号：US15201760

申请日：2016-07-05

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Keisuke HASHIMOTO ,  Eisuke HIROSUE

IPC: B60C17/00 ,  B60C15/06

CPC classification number: B60C17/0009 ,  B60C15/0045 ,  B60C15/0603 ,  B60C15/0607 ,  B60C2015/061 ,  B60C2015/0614 ,  B60C2015/0617 ,  B60C2015/0621 ,  B60C2015/0639 ,  B60C2015/0642 ,  B60C2015/0682 ,  B60C2017/0063

Abstract: In an apex 34 of a tire 2, a reinforcing portion 48 is located inward of a main body 46 in an axial direction. When a position on an outer surface of the tire 2 at which position a height from a BBL is 14 mm is defined as a first point P1 and a position on the outer surface of the tire 2 at which position a height from the BBL is 20 mm is defined as a second point P2, the reinforcing portion 48 overlaps the first point P1 and the second point P2 in a radial direction. A loss tangent of the reinforcing portion 48 is equal to a loss tangent of the main body 46 or less than the loss tangent. A hardness of the reinforcing portion 48 is equal to a hardness of the main body 46 or greater than the hardness.

Abstract translation: 在轮胎2的顶点34中，加强部48沿轴向位于主体46的内侧。 将轮胎2的与BBL的高度成为14mm的位置的位置定义为第一点P1，在距离BBL的高度为20°的轮胎2的外表面上的位置 mm被定义为第二点P2，加强部分48在径向上与第一点P1和第二点P2重叠。 加强部分48的损耗角正切相当于主体46的损耗角正切或小于损耗角正切。 加强部分48的硬度等于主体46的硬度或大于硬度。

公开(公告)号：US20150328941A1

公开(公告)日：2015-11-19

申请号：US14653545

申请日：2013-12-12

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Eisuke HIROSUE

IPC: B60C19/08 ,  B60C5/00

CPC classification number: B60C19/08 ,  B60C5/00 ,  B60C19/082 ,  B60C19/084 ,  Y10T152/10819

Abstract: Provided is a pneumatic tire that can reduce electrical resistance. The pneumatic tire has a tread portion (2), a sidewall portion (3), and a bead portion (4). The pneumatic tire is provided with a toroidal carcass (6) extending between a pair of bead cores (5). The carcass (6) includes a carcass ply (6A) in which juxtaposed carcass cords are covered by topping rubber. An conductive yarn (10) extending between the pair of bead cores (5) is provided along the topping rubber of the carcass ply (6A).

Abstract translation: 提供了能够降低电阻的充气轮胎。 充气轮胎具有胎面部（2），侧壁部（3）和胎圈部（4）。 充气轮胎设置有在一对胎圈芯（5）之间延伸的环形胎体（6）。 胎体（6）包括胎体帘布层（6A），其中并排的胎体帘线由顶部橡胶覆盖。 沿着胎体帘布层（6A）的顶部橡胶设置在一对胎圈芯（5）之间延伸的导电纱线（10）。