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公开(公告)号：US20190210407A1
公开(公告)日：2019-07-11
申请号：US16303306
申请日：2017-06-13
Applicant: BRIDGESTONE CORPORATION
Inventor： Tomohiro HIRAISHI
CPC classification number: B60C11/0083 , B60C11/03 , B60C11/0302 , B60C11/11 , B60C11/12 , B60C11/1236 , B60C11/1272 , B60C11/1281 , B60C11/1376 , B60C2011/0341 , B60C2011/0344
Abstract: Provided is a tire, comprising a tread surface divided into a plurality of land portions by at least one circumferential groove extending along a tire equator and tread edges, wherein at least one of the land portions divided by the at least one circumferential groove and the tread edges comprises a plurality of blocks divided by a plurality of width direction grooves; each of the blocks has a shape that protrudes from four sides toward a central portion; and each of the width direction grooves comprises a sipe portion.
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公开(公告)号：US20190193474A1
公开(公告)日：2019-06-27
申请号：US16328675
申请日：2017-08-30
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Takanori Uemura , Takayuki Shiraishi , Hiraku Kouda , Tatsuro Shinzawa
CPC classification number: B60C11/1281 , B60C11/03 , B60C11/0302 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C11/13 , B60C2011/1213
Abstract: Provided is a pneumatic tire. A sipe is formed, on each of a leading side edge and a trailing side edge, with a chamfered portion shorter than a sipe length of a sipe, a non-chamfered region in which no other chamfered portion is present is provided in a part facing each of the chamfered portions, at least one end of the sipe communicates with the auxiliary groove, one end of the chamfered portion adjacent to the auxiliary groove in the rib communicates with the auxiliary groove, a maximum depth×(mm) of the sipe and a maximum depth y (mm) of the chamfered portion satisfy a relationship x×0.1≤y≤x×0.3+1.0, and a sipe width W of the sipe is constant in a range from an end positioned in the radial direction inside the chamfered portion to a groove bottom of the sipe.
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公开(公告)号：US20190184761A1
公开(公告)日：2019-06-20
申请号：US16282356
申请日：2019-02-22
Applicant: Bridgestone Americas Tire Operations, LLC
Inventor： Russ A. Moser , Richard S. Parr
CPC classification number: B60C11/1263 , B60C11/0306 , B60C11/11 , B60C11/1218 , B60C11/1236 , B60C11/1281 , B60C2011/0346 , B60C2011/0355 , B60C2011/1213 , B60C2011/1245
Abstract: A tire includes a tread and a narrow, wavy, circumferential groove disposed on the tread, which extend around the tread in a circumferential direction. The narrow, wavy, circumferential groove has a first axial position associated with a minimum axial displacement, a second axial position associated with a maximum axial displacement, and the narrow, wavy, circumferential groove follows a serpentine path between the first and second axial positions. The narrow, wavy, circumferential groove has a first depth and a second depth, the first depth being a minimum narrow, wavy, circumferential groove depth and the second depth being a maximum narrow, wavy, circumferential groove depth. The narrow, wavy, circumferential groove follows a serpentine path between the first and second depths. The first depth of the narrow, wavy, circumferential groove and the second depth of the narrow, wavy, circumferential groove is between 0.10 mm and full tread depth.
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公开(公告)号：US20180272808A1
公开(公告)日：2018-09-27
申请号：US15544870
申请日：2016-01-22
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Tomohisa Nishino
CPC classification number: B60C11/0309 , B60C11/0306 , B60C11/11 , B60C11/1218 , B60C11/1236 , B60C2011/0365 , B60C2011/0381 , B60C2011/0388 , B60C2011/1213 , B60C2011/133
Abstract: A pneumatic tire comprising a plurality of circumferential main grooves, and a land portion defined by a pair of the plurality of circumferential main grooves. The land portion comprises a plurality of first lug grooves, a plurality of second lug grooves that are wider than the first lug grooves, and a plurality of notch portions formed on only the opening portions of the first lug grooves. A groove width Wg1 of the first lug grooves and a groove width Wg2 of the second lug grooves have the relationship 1.0 mm≤Wg2−Wg1≤4.0 mm.
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公开(公告)号：US20180250988A1
公开(公告)日：2018-09-06
申请号：US15897618
申请日：2018-02-15
Applicant: The Goodyear Tire & Rubber Company
Inventor： Sebastien Willy Fontaine , Armand Rene Gabriel Leconte , Frederic Ngo
CPC classification number: B60C11/1236 , B60C3/04 , B60C11/032 , B60C11/11 , B60C11/12 , B60C11/1281 , B60C2011/1245
Abstract: A tire for an autonomous vehicle includes a pair of sidewalls that extend to a ground-engaging tread. The tread includes a plurality of hexagonally-shaped tread elements, and the tire includes an outer diameter that is at least four times larger than a width of the tread. Selected hexagonally-shaped tread elements may be formed with features to increase traction on icy roads.
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Patent Agency Ranking
公开(公告)号：US20180147893A1
公开(公告)日：2018-05-31
申请号：US15572491
申请日：2016-07-08
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Masatoshi Kuriyama
CPC classification number: B60C11/1204 , B60C11/01 , B60C11/0304 , B60C11/0306 , B60C11/032 , B60C11/1236 , B60C11/125 , B60C11/13 , B60C11/1353 , B60C11/1392 , B60C2011/013 , B60C2011/0346 , B60C2011/0348 , B60C2011/0353 , B60C2011/0355 , B60C2011/0358 , B60C2011/0365 , B60C2011/0367 , B60C2011/0381 , B60C2011/1209 , B60C2011/1361
Abstract: A pneumatic tire includes a tread portion; main grooves extending in a tire circumferential direction provided in a tread surface of the tread portion, the main grooves each having a wave-like shape with periodic oscillation; land portions adjacent to one another in a tire lateral direction formed by the main grooves; lug grooves disposed in the land portions in a row in the tire circumferential direction, the lug grooves each intersecting the tire circumferential direction; narrow grooves disposed between the lug grooves adjacent to one another in the tire circumferential direction in a row in the tire circumferential direction, the narrow grooves each intersecting the tire circumferential direction and having a narrower groove width than the lug grooves; and hole portions formed in each of the narrow grooves.
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公开(公告)号：US20180134093A1
公开(公告)日：2018-05-17
申请号：US15789734
申请日：2017-10-20
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Atsushi MAEHARA
CPC classification number: B60C11/1218 , B60C11/0306 , B60C11/12 , B60C11/1236 , B60C2011/0346 , B60C2011/0353 , B60C2011/0355 , B60C2011/0367 , B60C2011/1213 , B60C2200/06
Abstract: A tire includes a tread portion provided with a plurality of blocks. At least one of the plurality of blocks is provided with a sipe. The sipe extends in a sipe longitudinal direction to form a zigzag opening configuration on a ground contact surface of the at least one of the plurality of blocks. The sipe extends inwardly in a tire radial direction such that the zigzag opening configuration oscillates in the sipe longitudinal direction repeatedly with a total amplitude and a wavelength while maintaining the zigzag opening configuration. A half of the wavelength of the sipe is in a range of from 0.10 to 0.24 times a maximum depth of the sipe, and a slope of the half of the wavelength with respect to the total amplitude has an angle in a range of from 45 to 65 degrees.
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公开(公告)号：US09950572B2
公开(公告)日：2018-04-24
申请号：US14229193
申请日：2014-03-28
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yoshiaki Takemoto
CPC classification number: B60C11/0304 , B60C11/12 , B60C11/1236 , B60C2011/0348 , B60C2011/0353 , B60C2011/0365 , B60C2011/0372 , B60C2011/0381 , B60C2011/0383 , B60C2011/0388 , B60C2011/039 , B60C2011/129 , B60C2011/1295
Abstract: A pneumatic tire has a tread portion provided with an asymmetrical tread pattern and comprising an inboard shoulder land portion, an inboard shoulder main groove, an inboard middle land portion, an inboard crown main groove, a center land portion, an outboard crown main groove, an outboard middle land portion, an outboard shoulder main groove, and an outboard shoulder land portion. The inboard middle land portion is provided with inboard middle axial grooves extending from the inboard shoulder main groove and each comprising a main portion and a turnback portion. The inboard shoulder land portion is provided with inboard shoulder sipes extending from the inboard shoulder main groove.
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公开(公告)号：US20180037065A1
公开(公告)日：2018-02-08
申请号：US15602248
申请日：2017-05-23
Applicant: TOYO TIRE & RUBBER CO., LTD.
Inventor： Toshikazu Yasunaga
CPC classification number: B60C11/0302 , B60C11/1236 , B60C11/1263 , B60C2011/0341 , B60C2011/0358 , B60C2011/0374 , B60C2011/0376 , B60C2011/1213 , B60C2011/129
Abstract: A tread portion of a pneumatic tire is divided into a center region at a center portion in a tire width direction and shoulder regions disposed on both sides of the center region. Each of the center region includes ribs which are formed by a plurality of main grooves extending in a tire circumferential direction. The shoulder region includes: a plurality of inclined grooves which are inclined toward the outside in a tire width direction and toward a direction opposite to a tire rotational direction at the time of advancing a vehicle; and a shoulder block surrounded by the inclined grooves.
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公开(公告)号：US20180015788A1
公开(公告)日：2018-01-18
申请号：US15547145
申请日：2016-02-03
Applicant: BRIDGESTONE CORPORATION
Inventor： Shintaro HAYASHI
CPC classification number: B60C11/1204 , B60C11/03 , B60C11/0304 , B60C11/0306 , B60C11/12 , B60C11/1236 , B60C11/125 , B60C11/1384 , B60C11/1392
Abstract: A center land part and intermediate land parts formed on the tread surface by four main grooves are partitioned in the circumferential direction of the tire only by sipes, and form block parts arranged in the circumferential direction. The acute angle parts of each of the block parts are all chamfered from the tread surface side. The chamfered width at an end part of the block part in the width direction of the tire is greater than the chamfer width at the middle part. Each ends of the sipes in an outer intermediate land part open respectively to the main grooves. The mean angle of the sipes in the outer intermediate land part is less than that in the center land part and in an inner intermediate land part. The sipes in the center land part communicate with the main groove only on the side of the vehicle installation inner side.
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