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公开(公告)号：US12090793B2
公开(公告)日：2024-09-17
申请号：US17705467
申请日：2022-03-28
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Tsukasa Kitatani , Kozo Yoshimura , Ryota Ikeda
CPC classification number: B60C11/0304 , B60C11/01 , B60C11/0302 , B60C11/1236 , B60C11/125 , B60C11/1263 , B60C11/1281 , B60C11/1307 , B60C11/1353 , B60C2011/0341 , B60C2011/0376 , B60C2011/0388
Abstract: A tire includes a tread portion including first and second tread edges, three or more circumferential grooves, and four or more land portions. The circumferential grooves include a first shoulder circumferential groove nearest to the first tread edge. Each land portion is provided with only sipes and is not provided with lateral grooves. The land portions include a first shoulder land portion having the first tread edge, and a first middle land portion adjacent to the first shoulder land portion. The first middle land portion is provided with first middle sipes traversing the first middle land portion completely in the tire axial direction. The first shoulder land portion is provided with first shoulder sipes extending from the first shoulder circumferential groove to the first tread edge. The first shoulder sipes have a circumferential pitch length smaller than a circumferential pitch length of the first middle sipes.
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公开(公告)号：US12083830B2
公开(公告)日：2024-09-10
申请号：US16919491
申请日：2020-07-02
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Koki Nagasawa
CPC classification number: B60C11/1236 , B60C11/1204 , B60C2011/0372 , B60C2011/1245
Abstract: A tire includes a tread portion including a first land region defined by main grooves. The first land region includes a first longitudinal edge and a second longitudinal edge, and a ground contacting surface defined between the first longitudinal edge and the second longitudinal edge. The first land region is provided with two first grooves and a second groove. Each of the first grooves extends so as to connect the first longitudinal edge and the second longitudinal edge. The second groove extends so as to connect the first longitudinal edge and the second longitudinal edge while intersecting with each of the two first grooves. The second groove is not connected with other grooves than the first grooves in the ground contacting surface.
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公开(公告)号：US12059929B2
公开(公告)日：2024-08-13
申请号：US17260206
申请日：2019-05-29
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Kenichi Matsumoto
CPC classification number: B60C11/0304 , B60C11/1236 , B60C11/1263 , B60C2011/0348 , B60C2011/0372 , B60C2011/0381
Abstract: A tread pattern of a pneumatic tire includes: first and second circumferential main grooves; a first circumferential narrow groove between the first and second circumferential main grooves, the first circumferential narrow groove having a narrower width than the first and second circumferential main grooves; an intermediate lug groove extending from the second circumferential main groove toward the first circumferential narrow groove, the intermediate lug groove being closed without reaching the first circumferential narrow groove; and a sipe extending from the closed end of the intermediate lug groove to connect the closed end with the first circumferential narrow groove. No lug grooves are between the first circumferential main groove and the first circumferential narrow groove, and a groove wall of the first circumferential main groove on a side of the first circumferential narrow groove circumnavigates without interruption in the tire circumferential direction.
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公开(公告)号：US12005743B2
公开(公告)日：2024-06-11
申请号：US17254897
申请日：2019-06-27
Applicant: BRIDGESTONE CORPORATION
Inventor： Akihiro Kawakita
CPC classification number: B60C11/0302 , B60C11/0311 , B60C11/1236 , B60C11/1384 , B60C2011/0313 , B60C2011/0346 , B60C2011/0348 , B60C2011/0358 , B60C2011/1213
Abstract: A tire includes a tread surface portion with inclined grooves, 2ND longitudinal grooves, and shoulder longitudinal grooves; and an indicator portion that indicates a rotation direction of the tire in which a vehicle travels forward. The inclined groove gradually extends forward in the rotation direction toward a tire equator from the outside in the tire width direction. A front surface among inner surfaces defining the inclined groove includes a first side surface with an inner end portion to which the 2ND longitudinal groove is open, a second side surface positioned closer to an inside than the first side surface and of which an outer end portion is positioned closer to a rear side than the inner end portion of the first side surface, and a stepped surface that connects an inner edge of the first side surface to an outer edge of the second side surface and faces the outside.
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公开(公告)号：US20240174030A1
公开(公告)日：2024-05-30
申请号：US18553280
申请日：2022-04-09
Applicant: Bridgestone Americas Tire Operations, LLC
Inventor： Robert G. Barned , Alek Shmagranoff , Akiko Neil , Cameron L. Reynolds , Stephen T. Miranda , Bradley S. Plotner , Gregory Rasor , Nicholas Harp
CPC classification number: B60C11/13 , B60C11/1236 , B60C2011/0353 , B60C2011/0355
Abstract: A tire including a decoupling groove is provided, the tire comprising: a body, a shoulder, a tread surface including at least one decoupling groove extending radially inwardly into the body from the tread surface, and a plurality of parallel sipes, wherein the decoupling groove is oriented adjacent to the shoulder, wherein the decoupling groove is defined by an axially outer groove sidewall and an axially inner groove sidewall, has a width W1, and has a centerline, wherein the plurality of parallel sipes extend axially into the inner groove sidewall, wherein the decoupling groove has a radially inner groove base defined by a curvilinear base surface, has a width W2, and has a center, wherein the width W2 is greater than the width W1, and wherein a centerline of the decoupling groove intersects the center of the groove base.
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Patent Agency Ranking
公开(公告)号：US11958318B2
公开(公告)日：2024-04-16
申请号：US15990543
申请日：2018-05-25
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Haruna Mizushima
CPC classification number: B60C11/0306 , B60C11/01 , B60C11/0332 , B60C11/1204 , B60C11/1218 , B60C11/1236 , B60C2011/0346 , B60C2011/0348 , B60C2011/036 , B60C2011/0365 , B60C2011/0372 , B60C2011/0381 , B60C2011/0393 , B60C2011/1209 , B60C2011/1213
Abstract: A tread portion of a pneumatic tire includes a pair of first main grooves extending in a tire circumferential direction formed at a position on either outer side in the tire lateral direction of a first land portion including a tire equatorial plane; a pair of second main grooves extending in the tire circumferential direction formed at a position outward from the first main grooves in the tire lateral direction; and first lug grooves formed in a second land portion between the first main grooves and the second main grooves, the first lug grooves opening to one of the first main grooves at one end and opening to one of the second main grooves at an other end. The first lug grooves have a groove width of 2 mm or greater and have the same inclination direction in the tire lateral direction with respect to the tire circumferential direction.
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公开(公告)号：US20240109374A1
公开(公告)日：2024-04-04
申请号：US18264579
申请日：2021-11-05
Applicant: BRIDGESTONE CORPORATION
Inventor： Mayuko KARASAWA , Shungo FUJITA , Kai YAMADA
CPC classification number: B60C11/1236 , B60C11/0306 , B60C11/1204 , B60C2011/1213 , B60C2011/129
Abstract: A pneumatic tire including a center block row 21 provided in a center area of a tread surface 1, wherein the center block row includes a plurality of center blocks 210 arranged along a tire circumferential direction, the plurality of center blocks includes a plurality of first center blocks 211 and a plurality of second center blocks 212, the plurality of first center blocks and the plurality of second center blocks have polygonal shapes on the tread surface, the polygonal shape formed by each second center block has a same number of sides as, but a different shape than, the polygonal shape formed by each first center block, each first center block and each second center block has one or more sipes, and a number n of sipes included in each second center block is greater than a number m of sipes included in each first center block.
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公开(公告)号：US11945263B2
公开(公告)日：2024-04-02
申请号：US17257155
申请日：2019-02-14
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Haruna Mizushima
CPC classification number: B60C11/1392 , B60C11/1236 , B60C11/0304 , B60C2011/0381
Abstract: In a pneumatic tire, a land portion includes a chamfered portion formed on an edge portion of the land portion on a ground contact edge side, and a lug groove and a narrow groove disposed correspondingly to the chamfered portion. The chamfered portion is formed on the edge portion on a ground contact edge side, and has a chamfered width that increases toward a circumferential direction in the road contact surface of the land portion. The lug groove terminates in the land portion on one end, and is opened to a central portion of the chamfered portion in a longitudinal direction on the other end. The narrow groove is opened to an edge portion of the land portion on an equatorial plane side on one end, and terminates in the vicinity of a maximum width position of the chamfered portion on the other end.
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公开(公告)号：US11926177B2
公开(公告)日：2024-03-12
申请号：US17905307
申请日：2021-03-01
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Kenji Horiuchi
CPC classification number: B60C11/1218 , B60C11/0304 , B60C11/033 , B60C11/1236 , B60C2011/1213
Abstract: In a tire having a specified mounting direction, groove area ratios Rin and Rout in ground contact regions on the vehicle inner and outer sides, respectively, satisfy Rin>Rout, average land portion areas Ain and Aout of intermediate regions Min and Mout on the vehicle inner and outer sides, respectively satisfy Ain
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公开(公告)号：US11919335B2
公开(公告)日：2024-03-05
申请号：US17753749
申请日：2020-06-22
Applicant: BRIDGESTONE CORPORATION
Inventor： Akiyoshi Shimizu
CPC classification number: B60C11/0323 , B60C11/1236 , B60C11/1281
Abstract: A pneumatic tire of the present disclosure includes, on a tread surface, a plurality of circumferential main grooves extending in the tire circumferential direction, and a plurality of land portions defined between circumferential main grooves adjacent in the tire width direction among the plurality of circumferential main grooves or by the circumferential main grooves and tread edges. The land portions include at least one circumferential sipe extending in the tire circumferential direction. The circumferential sipe includes a plurality of widened portions arranged in the tire circumferential direction. In a reference state, each widened portion is formed only from a portion that, from one side towards the other side in the tire circumferential direction, extends from the tread surface inward in the tire radial direction.
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