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公开(公告)号：US20240343071A1
公开(公告)日：2024-10-17
申请号：US18621271
申请日：2024-03-29
发明人： Kenta YAGI , Toshiki HORIGUCHI
CPC分类号： B60C11/042 , B60C11/0304 , B60C2011/0346 , B60C2011/0353 , B60C2011/0355
摘要： The tire includes a tread portion whose position when mounted on a vehicle is specified. The tread portion includes a first tread edge, a second tread edge, a plurality of circumferential grooves, and five land regions. The circumferential grooves include a first shoulder circumferential groove, a first crown circumferential groove, a second shoulder circumferential groove, and a second crown circumferential groove. The second shoulder circumferential groove has groove walls each configured as a zigzag surface. The second crown circumferential groove has groove walls each configured as a flat surface. Each of the groove walls of the second shoulder circumferential groove includes first surfaces and second surfaces arranged alternately. Each of the groove walls of the second shoulder circumferential groove includes has 2 to 4 first surfaces between each two of axial grooves adjacent to each other in a tire circumferential direction.
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公开(公告)号：US12049109B2
公开(公告)日：2024-07-30
申请号：US17254249
申请日：2019-05-14
发明人： Daisuke Watanabe
CPC分类号： B60C11/0304 , B60C11/033 , B60C11/1236 , B60C2011/0346 , B60C2011/0358 , B60C2011/0372 , B60C2011/0381 , B60C2011/0388 , B60C2011/039 , B60C11/04
摘要： Provided is a pneumatic tire. An outer side intermediate land portion and outer side shoulder land portion have lug grooves extending in a width direction while curving; one end of the lug grooves in the outer side shoulder land portion reaches a ground contact edge, while the other end terminates in the outer side shoulder land portion; one end of the lug grooves in the outer side intermediate land portion communicates with a shoulder main groove and the other end terminates in the outer side intermediate land portion; an opening end of the lug grooves in the outer side intermediate land portion with respect to the shoulder main groove exists on an extension line of the lug grooves in the outer side shoulder land portion; and a pair of lug grooves adjacent in the outer side intermediate land portion are disposed to not overlap each other in the circumferential direction.
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公开(公告)号：US20240157734A1
公开(公告)日：2024-05-16
申请号：US18055510
申请日：2022-11-15
发明人： Kiyoshi Ueyoko , Badal Das
CPC分类号： B60C11/04 , B60C9/20 , B60C9/263 , B60C2011/0386
摘要： A pneumatic tire may include: a carcass; a belt reinforcing structure comprising a plurality of belt layers that include at least one spiral belt layer and at least one zigzag belt layer; and a tread comprising two or more main grooves extending circumferentially continuously around the pneumatic tire and defining a plurality of ribs that include two axially outermost ribs. At 10% to 100% of rated pressure and no load, each of the two axially outermost ribs may be raised (e.g., by a gap of 1 mm to 7 mm) in relation to a respective next nearest rib located axially inward of the respective axially outermost rib.
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公开(公告)号：US11780271B2
公开(公告)日：2023-10-10
申请号：US17839483
申请日：2022-06-14
发明人： Yuto Ohte , Ryota Ikeda
CPC分类号： B60C11/1281 , B60C11/0302 , B60C11/0304 , B60C11/04 , B60C11/1236
摘要： A tread portion 2 can include an inner tread end, an outer tread end, circumferential grooves, and land portions. The circumferential grooves can include an inner shoulder circumferential groove and an outer shoulder circumferential groove. The land portions can include an inner shoulder land portion and an outer shoulder land portion. The inner shoulder land portion can include inner shoulder lateral grooves and inner shoulder sipes. The outer shoulder land portion can include outer shoulder lateral grooves and outer shoulder sipes. Each outer shoulder sipe can have a chamfered portion at each of sipe edges on both sides. The chamfered portion can have a chamfered width that increases from a terminating end side toward the outer shoulder circumferential groove.
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公开(公告)号：US20230070741A1
公开(公告)日：2023-03-09
申请号：US17889208
申请日：2022-08-16
发明人： Yuya MEGURO
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.
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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
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.
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公开(公告)号：US20220297478A1
公开(公告)日：2022-09-22
申请号：US17689476
申请日：2022-03-08
发明人： Hiroaki KOGA , Hiroshi KIKUCHI
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.
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公开(公告)号：US11370251B2
公开(公告)日：2022-06-28
申请号：US15883438
申请日：2018-01-30
发明人： Yoshiyuki Maeda , Keita Nakano
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.
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公开(公告)号：US11364745B2
公开(公告)日：2022-06-21
申请号：US16477884
申请日：2017-12-26
发明人： Masatoshi Shimizu
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.
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公开(公告)号：US11279178B2
公开(公告)日：2022-03-22
申请号：US16242703
申请日：2019-01-08
发明人： Koichi Nakajima
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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