公开(公告)号：US20170043628A1

公开(公告)日：2017-02-16

申请号：US15218644

申请日：2016-07-25

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadashi ITO

IPC: B60C15/05

CPC classification number: B60C15/024 ,  B60C15/04 ,  B60C2015/048 ,  B60C2015/0614 ,  B60C2015/0692

Abstract: A tire 2 of the present invention includes a pair of fillers 20 turned up around beads 10. Each filler 20 has multiple cords made of steel and aligned with each other. In the tire 2, an outer surface of a chafer 8 has a bottom surface 26 that contacts with a seat surface of a rim 30. When a reference line M represents a straight line that contacts with the bottom surface 26 in a cross-section obtained by cutting the tire at the plane perpendicular to the circumferential direction, the bottom surface 26 has a depression 66 that is shaped so as to project radially outward of the reference line M. A ratio (D/L) of a maximum depth D of the depression 66 to a width L of the depression 66 is greater than or equal to 0.007 and not greater than 0.060.

Abstract translation: 本发明的轮胎2包括在珠10周围的一对填料20.每个填料20具有由钢制成的多个帘线并且彼此对准。 在轮胎2中，胎圈包布8的外表面具有与轮辋30的座面接触的底面26.当基准线M表示与所得到的截面中与底面26接触的直线时 通过在与圆周方向垂直的平面处切割轮胎，底面26具有凹陷部66，该凹部66成形为在基准线M的径向外侧突出。最大深度D的比（D / L） 凹陷66相对于凹部66的宽度L大于或等于0.007且不大于0.060。

公开(公告)号：US20140345767A1

公开(公告)日：2014-11-27

申请号：US14265618

申请日：2014-04-30

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Satoshi TANAKA ,  Tadashi ITO

IPC: B60C11/12 ,  B60C11/03

CPC classification number: B60C11/1263 ,  B60C11/0306 ,  B60C11/1204 ,  B60C11/1369 ,  B60C2011/1213 ,  B60C2011/1268 ,  B60C2200/06

Abstract: A pneumatic tire comprises a tread portion provided with blocks each provided with a first variable depth sipe and a second variable depth sipe each having both axial ends opened at edges of the block on both sides thereof in the tire axial direction. In each block, a shallow portion of the first variable depth sipe overlaps, in the tire axial direction, with a deep main portion of the second variable depth sipe. an axial groove dividing the blocks is provided with a tie bar overlapping, in the tire axial direction, with the deep main portion of the adjacent variable depth sipe.

Abstract translation: 充气轮胎包括具有块的胎面部，每个块设置有第一可变深度刀槽花纹和第二可变深度刀槽花纹，所述第二可变深度刀槽花纹在轮胎轴向方向上在其两侧的边缘处具有两个轴向端部。 在每个块中，第一可变深度刀槽刀的浅部在轮胎轴向与第二可变深度刀槽花纹的深主要部分重叠。 分割块的轴向槽设置有在轮胎轴向与重叠的可变深度刀槽花纹的深部主体重叠的连杆。

公开(公告)号：US20160167442A1

公开(公告)日：2016-06-16

申请号：US14954102

申请日：2015-11-30

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadashi ITO

IPC: B60C11/03 ,  B60C11/12

CPC classification number: B60C11/1259 ,  B60C11/0306 ,  B60C11/11 ,  B60C2011/0334 ,  B60C2011/0346 ,  B60C2011/0365 ,  B60C2011/1209 ,  B60C2011/1268 ,  B60C2011/129 ,  B60C2200/06

Abstract: A pneumatic tire 1 is provided in the tread portion 2 with blocks each provided with sipes 9 extending across the entire axial width of the block. The blocks include axially innermost first blocks 3 each having a longitudinal block rigidity (G), and axially outer blocks 4 each having a longitudinal block rigidity (G). The longitudinal block rigidity (G) of the axially innermost first blocks 3 is 90% to 110% of the longitudinal block rigidity (G) of the axially outer blocks 4.

Abstract translation: 充气轮胎1在胎面部2中设置有各自设置有在块的整个轴向宽度上延伸的刀槽花纹9的块。 这些块包括轴向最内部的第一块3，每个第一块3具有纵向块刚度（G）和轴向外部块4，每个具有纵向块刚度（G）。 轴向最内的第一块3的纵向块刚度（G）是轴向外部块4的纵向块刚度（G）的90％至110％。

公开(公告)号：US20230302850A1

公开(公告)日：2023-09-28

申请号：US18124635

申请日：2023-03-22

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadashi ITO ,  Tetsuya KITANO

IPC: B60C3/04 ,  B60C15/06

CPC classification number: B60C3/04 ,  B60C15/0607 ,  B60C2015/061 ,  B29D30/0601

Abstract: A contour CL of a carcass 12 includes a curved portion 44 and an inversely curved portion 46. A boundary between the curved portion 44 and the inversely curved portion 46 is an inflection point PV. A part or an entirety of the curved portion 44 is represented by a first arc. A part or an entirety of the inversely curved portion 46 is represented by a second arc. The first arc and the second arc are tangent to each other at the inflection point PV. A ratio (X/W) of a distance X in an axial direction to a distance W in the axial direction is not less than 70% and not greater than 85%. A ratio (Y/H) of a distance Y in a radial direction to a distance H in the radial direction is not less than 15% and not greater than 22%.

公开(公告)号：US20230415519A1

公开(公告)日：2023-12-28

申请号：US18209846

申请日：2023-06-14

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Tadashi ITO ,  Masayuki YOSHINO

IPC: B60C15/06 ,  B60C19/00

CPC classification number: B60C15/0607 ,  B60C19/00 ,  B60C2200/06

Abstract: A tire 2 includes a pair of chafers 8 and a tag member 26. The chafer 8 comes into contact with a rim R. The tag member 26 includes an RFID tag 54. A state where a load equal to 50% of a normal load is applied to the tire 2 in a normal state and the tire 2 is brought into contact with a flat surface FS is a standard ground-contact state. In the standard ground-contact state, the RFID tag 54 is located between an axially outer end PRa of the rim R and a maximum width position PWs of the tire 2 in an axial direction, and is located between a radially outer end PRr of the rim R and the maximum width position PWs of the tire 2 in a radial direction.

公开(公告)号：US20170297376A1

公开(公告)日：2017-10-19

申请号：US15485715

申请日：2017-04-12

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadashi ITO

IPC: B60C9/20

CPC classification number: B60C9/20 ,  B60C9/0007 ,  B60C9/2006 ,  B60C2009/0092 ,  B60C2009/2048 ,  B60C2009/2077 ,  D07B2201/2018

Abstract: In a tire 2 according to the present invention, belt cords 42 included in a belt 22 each include a twisted string obtained by twisting together four filaments 46. Each belt cord 42 has an elliptical cross-section. On the cross-section, the ratio of the length of the minor axis to the length of the major axis is greater than or equal to 0.67 and not greater than 0.94. A first filament 46a and a third filament 46c are disposed along the minor axis. The first filament 46a and the third filament 46c are each in contact with a second filament 46b and a fourth filament 46d, or the first filament 46a is in contact with the third filament 46c.

公开(公告)号：US20160243898A1

公开(公告)日：2016-08-25

申请号：US15024465

申请日：2014-10-02

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Tadashi ITO

IPC: B60C11/03

CPC classification number: B60C11/0327 ,  B60C11/0306 ,  B60C11/033 ,  B60C11/11 ,  B60C11/12 ,  B60C11/1236 ,  B60C2011/013 ,  B60C2011/0334 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/0348 ,  B60C2011/0353 ,  B60C2011/0355 ,  B60C2011/0358 ,  B60C2011/0365 ,  B60C2011/0367 ,  B60C2011/0393 ,  B60C2011/1209 ,  B60C2011/129

Abstract: A pneumatic tire in which a tread part is provided with a pair of central main grooves extending continuously around the circumference of the tire on both sides of a tire equator C, and central thin grooves extending continuously around the circumference of the tire on the tire-axially inner sides of the central main grooves and having less groove width than the central main grooves. The central thin grooves include a linear first central thin groove running along the tire circumference, and zigzagging second central thin grooves. The first central thin groove is provided on the tire-axially inner sides of the second central thin grooves.

Abstract translation: 一种充气轮胎，其中，胎面部设置有一对中心主槽，所述一对中心主槽在轮胎赤道C的两侧围绕轮胎的圆周连续地延伸，以及中心细槽，其围绕轮胎的轮胎周围连续延伸， 中央主槽的轴向内侧，并且具有比中央主槽更小的槽宽度。 中心薄槽包括沿着轮胎周边延伸的直线状的第一中心薄槽，以及之字形的第二中央薄槽。 第一中央细槽设置在第二中心细槽的轮胎轴向内侧。