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1. 发明授权

US11633989B2 Tire 有权
公开(公告)号：US11633989B2
公开(公告)日：2023-04-25
申请号：US17351939
申请日：2021-06-18
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Koichi Nakajima
IPC分类号： B60C11/13 , B60C11/04 , B60C11/03
摘要： The tire includes a tread portion 2 having at least one groove 3 that includes two groove walls 6. At least one of the groove walls 6 has a protrusion 10 that protrudes from the groove wall 6. The protrusion 10 includes at least two ribs 11 that extend in a length direction of the groove 3 and are spaced from each other in the tire radial direction, and a joining portion 12 for joining the ribs 11 to each other. Each rib 11 protrudes from the groove wall 6 so as to form such an inclination that the rib 11 is inclined outward from the groove wall 6 in a tire radial direction.

2. 发明授权

US11623479B2 Tire 有权
公开(公告)号：US11623479B2
公开(公告)日：2023-04-11
申请号：US17275228
申请日：2019-08-07
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C11/12
摘要： A tire having a tread portion that is provided with sipes. Four sipe segments of the sipe include a first sipe segment, a second sipe segment, a third sipe segment, and a fourth sipe segment. At least one of the first sipe segment and the third sipe segment includes, in the cross section orthogonal to the length direction, an oscillated portion which extends in the tire radial direction, while oscillating in the lateral direction orthogonal to the length direction.

3. 发明授权

US11607916B2 Tyre 有权
公开(公告)号：US11607916B2
公开(公告)日：2023-03-21
申请号：US16292637
申请日：2019-03-05
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C13/00 , B60C13/02
摘要： A mark indicating portion arranged on a sidewall portion is provided with a reference surface provided on a surface of the sidewall portion and one or more marks formed on the reference surface. A surface of the or each mark is provided with a ridge line extending obliquely with respect to a tyre radial direction, a first surface portion positioned on an outer side in the tyre radial direction of the ridge line, and a second surface portion positioned on an inner side in the tyre radial direction of the ridge line. Each of the first surface portion and the second surface portion is inclined in a direction in which a height thereof from the reference surface is decreased as it goes away from the ridge line.

4. 发明授权

US11059331B2 Tire 有权
公开(公告)号：US11059331B2
公开(公告)日：2021-07-13
申请号：US16273269
申请日：2019-02-12
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C13/00 , B60C13/02
摘要： A mark indicating portion comprises a reference surface provided on a surface of a sidewall portion and marks formed on the reference surface. A surface of each of the marks is inclined with respect to the reference surface in a direction in which a height thereof increases from one side to the other side in a tyre circumferential direction.

5. 发明授权

US11446964B2 Tyre 有权
公开(公告)号：US11446964B2
公开(公告)日：2022-09-20
申请号：US16360234
申请日：2019-03-21
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C11/13 , B60C11/11 , B60C11/03
摘要： A tyre includes a tread portion having a tread surface provided with grooves extending in a tyre axial direction. The grooves each include an opening formed on the tread surface, a minimum portion located inwardly in a tyre radial direction of the opening and having a groove width being locally minimum, and a maximum portion located inwardly in the tyre radial direction of the minimum portion and having a groove width being locally maximum in a region inwardly in the tyre radial direction of the opening.

6. 发明授权

US11446962B2 Tire 有权
公开(公告)号：US11446962B2
公开(公告)日：2022-09-20
申请号：US16226758
申请日：2018-12-20
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Shintaro Tomita , Koichi Nakajima
IPC分类号： B60C11/12 , B60C11/03
摘要： A tire comprises a tread portion provided with at least one main groove extending continuously in the tire circumferential direction to axially divide the tread portion into land portions. The land portion is provided with axial grooves extending thereacross in the tire axial direction, and each comprising a radially outer portion and a radially inner portion which is wider than the radially outer portion. The radially outer portion of each of the axial grooves is crossed by one ore more sipes.

7. 发明授权

US11247511B2 Tyre 有权
公开(公告)号：US11247511B2
公开(公告)日：2022-02-15
申请号：US16241590
申请日：2019-01-07
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C11/03 , B60C11/13 , B60C11/04 , B60C5/00
摘要： A circumferential groove has a groove bottom and a pair of groove walls. Groove bottom includes groove bottom protruding portions protruding radially outwardly from a groove bottom reference surface and having a first groove bottom surface extending radially. The first groove bottom surface includes a first surface portion on one side of a center line of the circumferential groove and a second surface portion positioned on the other side, and an angle between them is 20° to 170°. The groove wall includes groove wall protruding portions protruding toward an inside of the circumferential groove from a groove wall reference surface defined as a circumferential surface at a widest groove width position of the circumferential groove and having a first groove wall width surface 12 extending in a tyre width direction and a second groove wall surface having an angle larger than the first groove wall width surface.

8. 发明申请

US20210178830A1 TYRE 有权
公开(公告)号：US20210178830A1
公开(公告)日：2021-06-17
申请号：US17103664
申请日：2020-11-24
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Koichi Nakajima
IPC分类号： B60C11/13 , B60C11/11 , B60C11/03 , B60C11/04
摘要： A tyre includes a tread portion having a tread surface being provided with a plurality of lateral grooves extending in a tyre axial direction. In a cross-sectional view perpendicular to a longitudinal direction of the at least one of the plurality of lateral grooves, the at least one of the plurality of lateral grooves includes a pair of groove walls and a groove bottom. At least one of the pair of groove walls includes a serrated portion including first surfaces and second surfaces that are arranged alternately. Each first surface is inclined outwardly in a groove width direction toward the groove bottom and has a radially inner end thereof, and each second surface extends substantially parallel with the tread surface from the radially inner end of a respective one of the first surfaces toward a groove centerline of the at least one of the plurality of lateral grooves.

9. 发明授权

US11633990B2 Tire 有权
公开(公告)号：US11633990B2
公开(公告)日：2023-04-25
申请号：US16417991
申请日：2019-05-21
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C11/13 , B60C11/03
摘要： A tire having a circumferential groove having a groove bottom and a pair of groove walls. The groove bottom is provided with groove bottom raised portions protruding radially outwardly from a reference plane 5a. The groove bottom raised portions are a first groove bottom raised portion located on a first side in the width direction of the circumferential groove and a second groove bottom raised portion located on a second side in the width direction. The first and second groove bottom raised portions each has a plurality of repeating units having a first bottom surface extending substantially in the tire radial direction and a second bottom surface inclined with respect to the tire radial direction at a larger angle than the first bottom surface. The inclination direction of the second bottom surfaces of the first groove bottom raised portion is opposite to the inclination direction of the second bottom surfaces of the second groove bottom raised portion.

10. 发明授权

US11279178B2 Tire 有权
公开(公告)号：US11279178B2
公开(公告)日：2022-03-22
申请号：US16242703
申请日：2019-01-08
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Koichi Nakajima
IPC分类号： B60C11/13 , B60C11/04
摘要： A tread portion has a circumferential groove extending continuously and circumferentially. The circumferential groove has a groove bottom and a pair of groove walls radially extending from the groove bottom to a tread surface. The groove bottom includes groove bottom protruding portions protruding radially outwardly from a groove bottom reference surface parallel to the tread surface at a deepest position of a groove depth of the circumferential groove. Each of the groove bottom protruding portions is formed to be symmetrical about a center line of the circumferential groove in a plan view of the tread portion and has a first groove bottom surface extending radially. The first groove bottom surface includes a first surface portion on one side of the center line and a second surface portion on the other side. An angle between the first surface portion and the second surface portion is from 20° to 170°.

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