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：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：US20130167997A1

公开(公告)日：2013-07-04

申请号：US13730179

申请日：2012-12-28

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Koji HAYASHI

IPC: B60C11/04

CPC classification number: B60C11/04 ,  B60C11/0306 ,  B60C11/12 ,  B60C11/1236 ,  B60C11/1259 ,  B60C11/1263 ,  B60C2011/0353 ,  B60C2011/0381 ,  B60C2011/0383 ,  B60C2011/0386 ,  B60C2011/0388 ,  B60C2011/039

Abstract: A pneumatic tire has a tread portion divided into a crown rib, a pair of middle ribs and a pair of shoulder ribs by two crown main grooves and two shoulder main grooves. The width of the crown main groove is 5.5 to 7.5% of the tread width. The width of the shoulder main groove is 50 to 70% of the crown main groove width. The crown rib has crown sipes extending from the crown main grooves. The middle rib has axially inner middle sipes extending axially outward from the crown main groove and ending within the middle rib, and axially outer middle sipes extending axially inward from the shoulder main groove and ending within the middle rib. The shoulder rib has shoulder sipes extending axially outward from the shoulder main groove, and shoulder lug grooves extending axially inward from the tread edge ending within the shoulder rib.

Abstract translation: 充气轮胎具有通过两个胎冠主槽和两个胎肩主槽分割成冠状肋，一对中间肋和一对胎肩肋的胎面部。 胎冠主槽的宽度为胎面宽度的5.5〜7.5％。 肩主槽的宽度为冠主槽宽度的50〜70％。 冠肋具有从冠主槽延伸的胎冠刀槽花纹。 中间肋具有从冠主槽轴向向外延伸并且终止于中间肋部的轴向内部中间刀槽花纹，并且轴向外部中间刀槽花纹从肩部主槽轴向向内延伸并且终止于中间肋部。 肩肋具有从胎肩主槽轴向向外延伸的肩部刀槽花纹，以及从胎肩边缘的胎面边缘向内轴向延伸的胎肩花纹槽。

公开(公告)号：US20160152087A1

公开(公告)日：2016-06-02

申请号：US14934342

申请日：2015-11-06

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Koji HAYASHI

IPC: B60C11/03 ,  B60C11/13 ,  B60C11/11 ,  B60C11/12

CPC classification number: B60C11/0309 ,  B60C11/0327 ,  B60C11/11 ,  B60C11/1204 ,  B60C11/1353 ,  B60C11/1392 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/0348 ,  B60C2011/0365 ,  B60C2011/0369 ,  B60C2011/1209 ,  B60C2011/1213 ,  B60C2011/1361

Abstract: A pneumatic tire 1 is provided in the tread portion 2 with crown blocks 21 each circumferentially divided into two block pieces 28, and shoulder blocks 9 each circumferentially partially divided into two block pieces 15. The block pieces 28 of the crown block 21 are a first block piece 28A having an axially outer crown chamfer 30 abutting on a shoulder main groove 3, and a second block piece 28B having no chamfer abutting on the shoulder main groove 3. The block pieces 15 of the shoulder block 9 are a first block piece 15A having an axially inner shoulder chamfer 16 abutting on the shoulder main groove 3, and a second block piece 15B having no chamfer abutting on the shoulder main groove 3. On both sides of the shoulder main groove 3, the axially inner shoulder chamfers 16 are partially circumferentially overlapped with the axially outer crown chamfers 30.

Abstract translation: 充气轮胎1在胎面部2中设置有冠状块21，每个胎冠块21沿圆周方向分成两块块28和每个圆周部分地分成两块块15的肩部块9.冠块21的块件28是第一 具有与胎肩主槽3邻接的轴向外冠倒角30的块件28A以及在肩主槽3上没有倒角的第二块件28B。肩部块9的块件15是第一块件15A 具有抵靠在台肩主槽3上的轴向内侧台肩倒角16以及在台肩主槽3上没有倒角的第二块件15B。在肩部主槽3的两侧，轴向内侧倒角16部分 与轴向外冠冠倒角30周向地重叠。