公开(公告)号：US20240198731A1

公开(公告)日：2024-06-20

申请号：US18534823

申请日：2023-12-11

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Takayuki NAMERA ,  Yuto HASHIMOTO ,  Sho NAKAJIMA ,  Ryuhei SANAE

IPC: B60C11/03 ,  B60C11/12

CPC classification number: B60C11/0306 ,  B60C11/1204 ,  B60C2011/1213

Abstract: A tire comprises a tread portion provided with blocks including a first block provided with a plurality of sipes. Each sipe comprises a zigzag portion in a cross section perpendicular to the sipe length direction, and a zigzag portion in a cross section parallel to the ground contacting top surface of the first block. Each of the sipes is provided with at least one tie bar protruding radially outwardly from the bottom of the sipe and terminating without reaching the ground contacting top surface. The sipes includes a first sipe having the tie bar at a first position in the tire axial direction, and a second sipe having the tie bar at a second position in the tire axial direction different from the first position.

公开(公告)号：US20220396096A1

公开(公告)日：2022-12-15

申请号：US17739265

申请日：2022-05-09

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Yuto HASHIMOTO

IPC: B60C11/03 ,  B60C11/12

Abstract: A tire, for which a mounting direction on a vehicle is specified, has a tread portion comprising an outboard shoulder land region provided with outboard shoulder lateral grooves, and an inboard shoulder land region provided with inboard shoulder lateral grooves. The outboard shoulder lateral grooves are bent convexly toward one side in the tire circumferential direction, whereas the inboard shoulder lateral grooves are bent convexly toward the other side in the tire circumferential direction. The bent angle of the outboard shoulder lateral groove is larger than the bent angle of the inboard shoulder lateral groove.

公开(公告)号：US20210387479A1

公开(公告)日：2021-12-16

申请号：US17347594

申请日：2021-06-15

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Yuto HASHIMOTO

IPC: B60C11/03 ,  B60C11/12

Abstract: A main object is to provide a tire that suppresses snow clogging of sipes. The tire includes a tread portion. The tread portion includes a first land portion demarcated by circumferential grooves continuously extending in a tire circumferential direction, and a plurality of first lateral grooves inclined in a first direction relative to a tire axial direction and traversing the first land portion. The first land portion includes a plurality of first blocks demarcated by the first lateral grooves. Each first block has at least one sipe inclined in a second direction opposite to the first direction, relative to the tire axial direction. The sipe includes a portion deeper than a maximum depth of the first lateral groove, and a portion shallower than the maximum depth of the first lateral groove.

公开(公告)号：US20240174027A1

公开(公告)日：2024-05-30

申请号：US18386395

申请日：2023-11-02

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Shogo IZAKURA ,  Yuto HASHIMOTO ,  Sho NAKAJIMA ,  Ryuhei SANAE

IPC: B60C11/12 ,  B60C11/03

CPC classification number: B60C11/1218 ,  B60C11/03 ,  B60C11/0306 ,  B60C11/1281 ,  B60C2011/1213

Abstract: A tire includes first blocks with zigzag first sipes. Each first sipe includes a tie-bar locally raising radially outwardly from the sipe bottom to divide the first sipe into first and second portions. The sipe bottoms of the first and second portions extend in a zigzag shape in a cross-section parallel to the ground contact surface. The sipe bottom of the first portion communicates with a first widening portion having a circular cross-sectional shape with a groove width greater than a width of the first portion and extending in a zigzag shape along the first portion. The sipe bottom of the second portion communicates with a second widening portion having a circular cross-sectional shape with a groove width greater than a width of the second portion and extending in a zigzag shape along the second portion. The first and second widening portions do not communicate with each other.

公开(公告)号：US20220396097A1

公开(公告)日：2022-12-15

申请号：US17752029

申请日：2022-05-24

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Yuto HASHIMOTO

IPC: B60C11/03 ,  B60C11/12

Abstract: A tire has a tread portion whose position specified when mounted on a vehicle. An outer shoulder land region has outer shoulder axial grooves. An inner shoulder land region has inner shoulder axial grooves. The outer shoulder axial grooves include inner groove portions and outer groove portions so as to be bent convexly to one side in a tire circumferential direction. The inner shoulder axial grooves include inner groove portions and outer groove portions so as to be bent convexly to the other side in the tire circumferential direction. The inner groove portions of the inner shoulder axial grooves have an angle larger than an angle of the inner groove portions of the outer shoulder axial grooves. The outer groove portions of the inner shoulder axial grooves have an angle smaller than an angle of the outer groove portions of the outer shoulder axial grooves.

公开(公告)号：US20240174029A1

公开(公告)日：2024-05-30

申请号：US18385045

申请日：2023-10-30

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Kosuke MIYOSHI ,  Yuto HASHIMOTO ,  Sho NAKAJIMA ,  Ryuhei SANAE

IPC: B60C11/12 ,  B60C11/03

CPC classification number: B60C11/1281 ,  B60C11/0306 ,  B60C11/1263 ,  B60C2011/0341 ,  B60C2011/0358 ,  B60C2011/1213

Abstract: A tire comprises a tread portion provided with a first block provided with a first sipe which extends zigzag in a cross section orthogonal to the sipe length direction, and extends zigzag in a cross section parallel to the ground contacting top surface of the first block. The first sipe is divided into a first portion and a second portion by a tie bar. The sipe bottom in the first portion communicates with a first wide portion. The sipe bottom in the second portion communicates with a second wide portion. The first wide portion comprises an outer portion and an inner portion. The outer portion is formed by a pair of first arcuate groove wall portions. The inner portion is formed by a pair of second arcuate groove wall portions. The first wide portion and the second wide portion do not communicate with each other.

公开(公告)号：US20240174028A1

公开(公告)日：2024-05-30

申请号：US18386864

申请日：2023-11-03

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Yuto HASHIMOTO

IPC: B60C11/12

CPC classification number: B60C11/1222 ,  B60C2011/1213

Abstract: A tire includes first blocks each with a zigzag first sipe. The first sipe includes a sipe bottom and a tie-bar locally raising outwardly in a tire radial direction from the sipe bottom so as not to reach the ground contact surface to divide the first sipe into first and second portions. The sipe bottom of the first portion communicates with a first widening portion which has a circular cross-section and has a groove width greater than that of the first portion. The first widening portion extends linearly over the entire length. The sipe bottom of the second portion communicates with a second widening portion which has a circular cross-section and has a groove width greater than that of the second portion. The second widening portion extends linearly over the entire length. The first widening portion does not communicate with the second widening portion.