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1. 发明申请

US20230070741A1 TIRE 有权
公开(公告)号：US20230070741A1
公开(公告)日：2023-03-09
申请号：US17889208
申请日：2022-08-16
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Yuya MEGURO
IPC分类号： B60C11/13 , B60C11/04
摘要： A tire includes a tread portion being provided with a first circumferential groove extending continuously in the tire circumferential direction, and a first land portion adjacent to the first circumferential groove. The first land portion includes a ground contact surface, a land sidewall on a first circumferential groove side, and a recess that opens across both the ground contact surface and the land sidewall. The recess has an opening defined by a V-shaped first edge and a V-shaped second edge respectively extending on the ground contact surface and the land sidewall. The recess has a circumferential maximum length L1 of from 6.0 to 9.0 mm. The recess has a maximum depth d1 of from 15% to 40% of a maximum depth of the first circumferential groove. The recess has an axial maximum length L2 of from 3.0 to 5.0 times the depth d1.

2. 发明授权

US11535064B2 Airless flexible tire with Z-tread track pattern 有权
公开(公告)号：US11535064B2
公开(公告)日：2022-12-27
申请号：US15813313
申请日：2017-11-15
申请人： LINDSAY CORPORATION
发明人： Michael Fredenburg , Thomas J. Korus
IPC分类号： B60C7/24 , B60C11/11 , B60C11/13 , B60C11/04 , B60C11/03 , B60C11/02 , B60B15/02
摘要： An airless flexible tire including traction lug pairs each having a forward facing traction lug and a rearward facing traction lug cooperatively forming a divided Z or reverse divided Z shape. Each traction lug includes a lateral section and a central section. The central section extends from an end of the lateral section so as to straddle a centerline of the airless flexible tire and includes a number of discrete sidewalls. The discrete sidewalls are different sizes and angled relative to each other. The central sections of paired traction lugs form a space dividing portions of the Z or reverse Z shape. The central sections of nearest traction lugs of adjacent traction lug pairs form a space dividing the adjacent traction lug pairs.

3. 发明申请

US20220297478A1 TIRE 有权
公开(公告)号：US20220297478A1
公开(公告)日：2022-09-22
申请号：US17689476
申请日：2022-03-08
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Hiroaki KOGA , Hiroshi KIKUCHI
IPC分类号： B60C11/00 , B60C11/04
摘要： In a tire, a tread includes a cap layer forming a part of an outer surface of the tire, a base layer disposed inwardly of the cap layer in a radial direction, and an intermediate layer disposed between the cap layer and the base layer in the radial direction. A loss tangent of the intermediate layer at 30° C. is less than a loss tangent of the cap layer at 30° C. and a loss tangent of the base layer at 30° C. is less than the loss tangent of the intermediate layer at 30° C. The tread includes at least two three-layer body portions formed of the cap layer, the intermediate layer, and the base layer, and at least one two-layer body portion that is formed of the cap layer and the base layer and disposed between a first three-layer body portion and a second three-layer body portion.

4. 发明授权

US11370251B2 Tire 有权
公开(公告)号：US11370251B2
公开(公告)日：2022-06-28
申请号：US15883438
申请日：2018-01-30
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Yoshiyuki Maeda , Keita Nakano
IPC分类号： B60C11/03 , B60C11/13 , B60C11/04 , B60C11/12
摘要： A tire 1 comprises a tread portion 2 whose position when mounted on a vehicle is specified. The tread portion 2 comprises an outer tread edge (To), an inner tread edge (Ti), a plurality of main grooves 10, and a plurality of land regions 15. The main grooves 10 include a first main groove 11 whose groove edges are both positioned on an inner-tread-edge-(Ti) side of a tire equator (C), a second main groove 12 arranged on an inner-tread-edge-(Ti) side of the first main groove 11, and a third main groove 13 arranged between the tire equator (C) and the outer tread edge (To) and having a groove width smaller than the first and second main grooves 11 and 12. The land regions 15 include an inner middle land region 16 and an outer middle land region 17 having an axial width larger than the inner middle land region 16.

5. 发明授权

US11364745B2 Pneumatic tire 有权
公开(公告)号：US11364745B2
公开(公告)日：2022-06-21
申请号：US16477884
申请日：2017-12-26
申请人： The Yokohama Rubber Co., LTD.
发明人： Masatoshi Shimizu
IPC分类号： B60C11/12 , B60C11/00 , B60C11/04
摘要： A pneumatic tire includes, in a tread portion, main grooves extending in a circumferential direction; ribs defined by the main grooves; at least one rib comprising sipes extending in a lateral direction; the sipes comprising a chamfered sipe with a chamfer portion provided on at least one edge, and a non-chamfered sipe with no chamfer portion provided on an edge; the chamfered sipe comprising one end portion terminating in the at least one rib and another end portion communicating with one of the main grooves located on either side of the at least one rib; a plurality of the chamfered sipes communicating with one of the main grooves located on either side of the at least one rib being alternately disposed in the circumferential direction; and the non-chamfered sipe being disposed close to the chamfered sipe on at least one side in the circumferential direction.

6. 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°.

7. 发明授权

US11241919B2 Pneumatic tire 有权
公开(公告)号：US11241919B2
公开(公告)日：2022-02-08
申请号：US16077723
申请日：2017-02-14
申请人： The Yokohama Rubber Co., LTD.
发明人： Mizuki Kuninaka
IPC分类号： B60C11/12 , B60C11/04 , B60C11/13
摘要： A pneumatic tire is provided in which each of sipes has a leading-side edge and a trailing-side edge. A chamfered portion that is shorter than a sipe length of the sipe is formed on each of the leading-side edge and the trailing-side edge. The sipe includes, at sections facing the chamfered portions, non-chamfered regions in which other chamfered portions are not present. Both end portions of the sipe are terminated inside a rib. A maximum depth x (mm) of the sipe 11 and a maximum depth y (mm) of the chamfered portion 12 satisfy a relationship x×0.1≤y≤x×0.3+1.0. A sipe width of the sipe is constant in a region between an end portion of the chamfered portion positioned on an inner side in the tire radial direction and a groove bottom of the sipe.

8. 发明申请

US20220001698A1 TYRE 有权
公开(公告)号：US20220001698A1
公开(公告)日：2022-01-06
申请号：US17480662
申请日：2021-09-21
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Koichi NAKAJIMA , Naoki ISHIDA , Masayuki FUJITA
IPC分类号： B60C11/01 , B60C11/03 , B60C11/04 , B60C11/12
摘要： A tyre includes a tread portion including a tread surface which is provided with grooves. At least one of the grooves includes a widening-width portion at least partially. The widening-width portion includes a first groove portion extending inwardly in a tyre radial direction from the tread surface, and a second groove portion located inwardly in the tyre radial direction of the first groove portion and having a groove width greater than that of the first groove portion.

9. 发明授权

US11207924B2 Pneumatic tire 有权
公开(公告)号：US11207924B2
公开(公告)日：2021-12-28
申请号：US16393037
申请日：2019-04-24
申请人： Toyo Tire Corporation
发明人： Tetsuji Miyazaki , Yoshiki Sato
IPC分类号： B60C11/13 , B60C11/04 , B60C11/03 , B60C11/24
摘要： A rib-like land section partitioned by main grooves, a plurality of sub-grooves provided in the rib-like land section at intervals in the tire circumferential direction and a groove hole provided between the sub-grooves adjacent to each other and extending in the tire circumferential direction are provided in a tread section. The sub-groove includes a lateral groove portion, in which one end opens to the main groove and the other end terminates inside the rib-like land section, and a longitudinal groove portion extending from the other end of the lateral groove portion to one side in the tire circumferential direction and terminating inside the rib-like land section. The groove hole is formed so that a groove depth at one end part close to a terminal end of the longitudinal groove portion becomes shallower than a groove depth at the other end part far from the terminal end.

10. 发明授权

US11167600B2 Pneumatic tire 有权
公开(公告)号：US11167600B2
公开(公告)日：2021-11-09
申请号：US16099583
申请日：2017-05-09
申请人： Apollo Tyres Global R&D B.V.
发明人： Ydwer Rinske Woudstra , Ysbrand Hans Wijnant , Dirk Anton Bekke
IPC分类号： B60C11/13 , B60C11/04 , B60C19/00 , B29D30/06
摘要： A pneumatic tyre including a tread portion, wherein the tread portion has a groove which is oriented at an angle between +45 and −45 degrees with respect to the rolling direction of the tyre, the groove having a depth extending in the radial dimension, wherein the groove includes a plurality of protrusions extending along the direction of the groove, wherein each protrusion has a length in the direction of the groove, a width perpendicular to its length and a height. Each protrusion has a length of at least 75% of the circumferential length of the tyre tread.

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