公开(公告)号：US20230311587A1

公开(公告)日：2023-10-05

申请号：US18125734

申请日：2023-03-24

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Masahiro TATSUTA ,  Junya TAMAI ,  Tomohiko HIROSHIGE ,  Hiroki SATO

IPC: B60C15/06

CPC classification number: B60C15/0603 ,  B60C15/0628 ,  B60C2015/061 ,  B60C2015/0682

Abstract: A tire can include a pair of beads, a carcass, an inner liner, and an insulation located between the carcass and the inner liner. The carcass can include one carcass ply. The carcass ply can include a plurality of carcass cords and a topping rubber. Each carcass cord can have a total fineness of not less than 6000 dtex and not greater than 9000 dtex. The insulation can be located between first and second beads. A ratio (ta/td) of a thickness to of the topping rubber located between the insulation and the carcass cords to a thickness td of the insulation can be not less than 0.2 and not greater than 0.6.

公开(公告)号：US20210094358A1

公开(公告)日：2021-04-01

申请号：US17029254

申请日：2020-09-23

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Masaya ITO ,  Kenji UEDA ,  Masatomo NAKAMURA ,  Koji HAYASHI ,  Ryo OBA ,  Masaki TERASHIMA ,  Masahiro NAGASE ,  Masahiro TATSUTA ,  Junya TAMAI

IPC: B60C11/13

Abstract: A tire capable of reducing air resistance without sacrificing ride comfort is provided. A tire 1 includes a tread portion 2 and sidewall portions 3 extending from both ends of the tread portion 2 through buttress regions 31 and maximum width positions 32 to bead portions 4. A projection portion 33 extending in a tire circumferential direction and a recess portion 34 extending in the tire circumferential direction are formed in each of the buttress regions 31. The projection portion 33 has a projection height of 0.1 to 0.3 mm from a reference surface of the buttress region 31 toward an outer side in a tire radial direction. The recess portion 34 has a recess depth of 0.1 to 0.3 mm from the reference surface toward an inner side in the tire radial direction.

公开(公告)号：US20210094362A1

公开(公告)日：2021-04-01

申请号：US17027254

申请日：2020-09-21

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Masaki TERASHIMA ,  Kenji UEDA ,  Masaya ITO ,  Koji HAYASHI ,  Ryo OBA ,  Masahiro NAGASE ,  Masatomo NAKAMURA ,  Junya TAMAI ,  Masahiro TATSUTA

IPC: B60C15/024 ,  B60B7/06 ,  B60C15/06

Abstract: A tire and rim assembly includes a rim having a pair of flanges, and a pneumatic tire being mounted onto the rim, the pneumatic tire including a pair of bead portions and a rim guard being provided on at least one of the pair of bead portions. In a cross-sectional view of the assembly under a standard state, the rim guard protrudes outwardly in a tire axial direction from a sidewall reference outer surface of the tire so as to cover over one of the pair of flanges. An angle θ of an imaginary rim guard straight line with respect to a tire radial direction is equal to or less than 40 degrees, and a maximum gap (A) in the tire radial direction between the one of the pair of flanges and the rim guard is equal to or less than 2.0 mm.

公开(公告)号：US20210094361A1

公开(公告)日：2021-04-01

申请号：US17028062

申请日：2020-09-22

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Ryo OBA ,  Kenji UEDA ,  Masatomo NAKAMURA ,  Koji HAYASHI ,  Masaki TERASHIMA ,  Masahiro NAGASE ,  Masahiro TATSUTA ,  Junya TAMAI ,  Masaya ITO

IPC: B60C13/02 ,  B60C13/00

Abstract: Provided is a tire provided with a mark capable of reducing the air resistance during tire rotation while maintaining good visibility. A tire is provided with a mark on a tire side portion. The mark includes a first mark located on an outer side in a tire radial direction, and a second mark located inward of the first mark in the tire radial direction. Each of the first mark and the second mark includes a recess that is recessed from a side profile surface of the tire side portion. A depth of the recess of the first mark from the side profile surface is smaller than a depth of the recess of the second mark from the side profile surface.

公开(公告)号：US20200254821A1

公开(公告)日：2020-08-13

申请号：US16750634

申请日：2020-01-23

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Hiroto TAKENAKA ,  Junya TAMAI ,  Akari KAWAZU

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

Abstract: A tyre includes a tread portion including first and second land portions. The first middle land portion is provided with first middle lateral grooves traversing the first middle land portion completely. The second middle land portion is provided with second middle lateral grooves traversing the second middle land portion completely. One of the first middle lateral grooves includes a raised portion in which a groove bottom thereof is raised, the raised portion traversing an axial center location of the first middle land portion. One of the second middle lateral grooves includes a raised portion in which a groove bottom thereof is raised, the raised portion traversing an axial center location of the second middle land portion. An axial length of the raised portion of the first middle lateral groove is greater than an axial length of the raised portion of the second middle lateral groove.