-
公开(公告)号：US11648805B2
公开(公告)日：2023-05-16
申请号：US17555625
申请日：2021-12-20
Applicant: TOYO TIRE CORPORATION
Inventor： Shingo Kuwano
CPC classification number: B60C11/1369 , B60C11/01 , B60C11/0327 , B60C11/11 , B60C11/1204 , B60C11/1236 , B60C13/02 , B60C2011/013 , B60C2011/0358 , B60C2011/1213 , B60C2011/1254 , B60C2200/14
Abstract: A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.
-
公开(公告)号：US20190193478A1
公开(公告)日：2019-06-27
申请号：US16209343
申请日：2018-12-04
Applicant: TOYO TIRE & RUBBER CO., LTD.
Inventor： Shingo Kuwano
CPC classification number: B60C11/1369 , B60C11/01 , B60C11/0327 , B60C11/11 , B60C11/1204 , B60C2011/013 , B60C2011/0358 , B60C2011/1213 , B60C2011/1254 , B60C2200/14
Abstract: A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.
-
公开(公告)号：US20190193476A1
公开(公告)日：2019-06-27
申请号：US16331502
申请日：2017-09-04
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Tatsuro Shinzawa , Takayuki Shiraishi , Hiraku Kouda , Takanori Uemura
CPC classification number: B60C11/1281 , B60C5/00 , B60C11/03 , B60C11/0302 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C2011/1213
Abstract: Provided is a pneumatic tire. A sipe includes, on each of a leading side edge and a trailing side edge, a chamfered portion and a non-chamfered region including no other chamfered portion. The maximum depth of the chamfered portion is shallower than the maximum depth of the sipe, and the sipe width is substantially constant. In a cross-sectional view, at least one chamfered portion includes a profile line that is convex inward in a tire radial direction with respect to a chamfer reference line connecting both ends of the chamfered portion; and a cross-sectional area of a chamfered region that is surrounded by the profile line, the sipe, and a tread contact surface of a tread portion is equal to or greater than a cross-sectional area of a reference region, the reference region being surrounded by the chamfer reference line, the sipe, and the tread contact surface.
-
公开(公告)号：US20190193471A1
公开(公告)日：2019-06-27
申请号：US16225395
申请日：2018-12-19
Applicant: Toyo Tire & Rubber Co., Ltd.
Inventor： Shingo Kuwano
CPC classification number: B60C11/0309 , B60C11/01 , B60C11/1204 , B60C2011/0341 , B60C2011/0358 , B60C2011/1213
Abstract: A pneumatic tire includes a plurality extending in a tire circumferential direction, and a plurality of land portions that are partitioned by the plurality of main grooves; the plurality of land portions include at least one shoulder land portion arranged in outwardmost fashion in a tire width direction; the at least one shoulder land portion comprises a plurality of width grooves of groove width of less than 2 mm; and at least one of the plurality of width grooves extends as far as a outside end in the tire width direction of the at least one shoulder land portion and comprises, at a location toward the exterior the tire width direction from a contact patch end, a wide portion at which groove width increases toward a groove bottom.
-
公开(公告)号：US20190184762A1
公开(公告)日：2019-06-20
申请号：US16204509
申请日：2018-11-29
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Shoichi WADA
CPC classification number: B60C11/1353 , B60C11/0309 , B60C11/1204 , B60C11/1236 , B60C2011/0346 , B60C2011/1213 , B60C2011/1361
Abstract: A tire includes a tread portion provided with at least one circumferentially extending zigzag main groove having a groove bottom, the at least one main groove including first inclined portions, second inclined portions each inclined in an opposite direction to the first direction, and first intersections where the first inclined portions and the second inclined portions are communicated with each other. The first inclined portions and the second inclined portions are arranged alternately in the tire circumferential direction. The first inclined portions are longer than the second inclined portions. The groove bottom of the at least one main groove is provided with at least one protruding part extending in a width direction of the at least one main groove, and a distance between the at least one protruding part and one adjacent first intersection is equal to or less than 2 times groove widths of the first intersections.
-
Patent Agency Ranking
公开(公告)号：US20180333993A1
公开(公告)日：2018-11-22
申请号：US15977566
申请日：2018-05-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yuki FUJIMOTO , Yuki KIGAMI
CPC classification number: B60C11/1204 , B60C11/01 , B60C11/0302 , B60C11/1236 , B60C2011/0358 , B60C2011/0383 , B60C2011/0388 , B60C2011/1213
Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises a plurality of first oblique grooves 10A extending obliquely from a first tread edge Te1 positioned on one side in a tire axial direction toward a tire equator C. Each of the first oblique grooves 10A comprises a main body portion 12 extending from the first tread edge Te1 without reaching the tire equator C and a branch portion 13 branching off from the main body portion 12 and extending to cross the tire equator. The branch portion 13 terminates without being connected with other grooves than the first oblique grooves 10A.
-
公开(公告)号：US20180333990A1
公开(公告)日：2018-11-22
申请号：US15528063
申请日：2015-12-03
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Hiroshi Furusawa
CPC classification number: B60C11/032 , B60C11/00 , B60C11/03 , B60C11/0302 , B60C11/0306 , B60C11/11 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C11/1272 , B60C2011/036 , B60C2011/0362 , B60C2011/0365 , B60C2011/0367 , B60C2011/1209 , B60C2011/1213 , B60C2011/1254
Abstract: A pneumatic tire is provided with, in the tread surface, a land portion, which is a row of blocks. The land portion is provided with a plurality of narrow shallow grooves and a plurality of recessed portions in a contact patch. Additionally, in the continuous contact patch of the land portion, four recessed portions are arranged in a row along an arc, with at least one of the four recessed portions being disposed in a central region and left and right end portion regions in a tire lateral direction.
-
公开(公告)号：US20180319219A1
公开(公告)日：2018-11-08
申请号：US15964826
申请日：2018-04-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Ryo OBA
CPC classification number: B60C11/0304 , B60C11/0302 , B60C11/0306 , B60C11/0332 , B60C11/1204 , B60C11/1236 , B60C11/1263 , B60C11/1281 , B60C2011/0334 , B60C2011/0344 , B60C2011/0353 , B60C2011/0358 , B60C2011/0365 , B60C2011/0372 , B60C2011/039 , B60C2011/1209
Abstract: A tire tread is provided with a crown main groove, and outboard and inboard shoulder main grooves to divide the tread portion into an outboard crown land portion, an inboard crown land portion, an outboard shoulder land portion and an inboard shoulder land portion. The inboard shoulder land portion is provided with inboard shoulder lateral grooves connecting an inboard tread edge and the inboard shoulder main groove. The outboard shoulder land portion is provided with outboard shoulder lateral grooves extending axially inwardly from an outboard tread edge and terminating within the outboard shoulder land portion. The inboard crown land portion is provided with inboard crown lateral grooves extending from the inboard shoulder main groove and terminating within the inboard crown land portion. The outboard crown land portion is provided with outboard crown lateral grooves extending from the crown main groove and terminating within the outboard crown land portion.
-
公开(公告)号：US20180272809A1
公开(公告)日：2018-09-27
申请号：US15906261
申请日：2018-02-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Tatsuo KIMURA
CPC classification number: B60C11/0309 , B60C11/1204 , B60C11/1236 , B60C2011/0346 , B60C2011/0376 , B60C2011/0383 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227
Abstract: A pneumatic tire includes a tread portion including a pair of first main grooves, a pair of second main grooves, a first land portion between the first main grooves and a pair of second land portions each sectioned adjacent one of the pair of first main grooves and one of the pair of second main grooves. The first main grooves extend in a trapezoidal wave manner including inner elements, outer elements and inclined connecting elements. One of the second land portions is provided with a second lateral groove opened at one of the outer elements. The first land portion is provided with a recess having an opening at the one of the outer elements. In a tire circumferential direction, a center of the opening of the recess is located at a position different from a position of an extension line of a centerline of the second lateral groove.
-
公开(公告)号：US20180272800A1
公开(公告)日：2018-09-27
申请号：US15756207
申请日：2016-07-28
Applicant: BRIDGESTONE CORPORATION
Inventor： Isao KUWAYAMA , Hideyuki SAKURAI
CPC classification number: B60C1/0016 , B60C1/00 , B60C11/00 , B60C11/005 , B60C11/03 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C2011/1254 , C08K3/04 , C08K3/36 , C08K5/01 , C08L7/00 , C08L9/00 , C08L9/06 , C08L23/22 , C08L25/10 , C08L91/00 , C08L2666/02 , C08L91/08 , C08L93/04
Abstract: A pneumatic tire having sufficiently improved wet performance is provided. A pneumatic tire comprises a tread rubber that includes: a tread surface rubber layer located at an outermost surface of a tread; and a tread inside rubber layer located on a tire radial inner side of the tread surface rubber layer. A 100% modulus of the tread surface rubber layer is higher than a 100% modulus of the tread inside rubber layer, and the tread surface rubber layer is made of a rubber composition including: a rubber component (A) containing 50 mass % or more of diene-based rubber; and, with respect to 100 parts by mass of the rubber component (A), 5 to 50 parts by mass of at least one additive component (B) selected from: thermoplastic resin; oil; and an aromatic vinyl compound-conjugated diene compound copolymer whose polystyrene-equivalent weight-average molecular weight measured by gel permeation chromatography is 5,000 to 200,000.
-
-
-
-
-
-
-
-
-
Search Results
234
records
(took 0.021 seconds)
