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公开(公告)号：US12122188B2
公开(公告)日：2024-10-22
申请号：US17262169
申请日：2019-06-04
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Masatoshi Shimizu
CPC classification number: B60C11/0304 , B60C9/28 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C11/1272 , B60C11/1281 , B60C2011/0365 , B60C2011/1213
Abstract: In a tread portion of a pneumatic tire, an average lateral groove width Lc of a center region is obtained by dividing the groove area of lateral grooves in the center region by a circumferential length of the center region, and an average lateral groove width Lsh of a shoulder region is obtained by dividing the groove area of lateral grooves in the shoulder region by a circumferential length of the shoulder region. A relationship between a tire average thickness Gc of the center region and a tire average thickness Gsh in the shoulder region satisfies 1.05≤(Gc/Gsh)≤1.35, a relationship between the average lateral groove width Lc of the center region and the tire average thickness Gc in the center region satisfies 0.07≤(Lc/Gc)≤0.12, and a relationship between the average lateral groove width Lsh of the shoulder region and the tire average thickness Gsh in the shoulder region satisfies 0.17≤(Lsh/Gsh)≤0.26.
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公开(公告)号：US12036820B2
公开(公告)日：2024-07-16
申请号：US17577323
申请日：2022-01-17
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Mina Takata
CPC classification number: B60C11/1236 , B60C9/18 , B60C11/03 , B60C11/0306 , B60C11/12 , B60C11/1204 , B60C11/1259 , B60C11/1272 , B60C11/1384 , B60C2011/0348 , B60C2011/036 , B60C2011/1245 , B60C2200/06
Abstract: A pneumatic tire includes circumferential grooves aligned in a lateral direction and extending in a circumferential direction, lateral grooves aligned in the circumferential direction and extending to cross the circumferential direction, communicating at ends with the circumferential grooves and defining a block-shaped land portion between the circumferential grooves, two narrow grooves aligned in the lateral direction and extending in the circumferential direction, communicating at ends with a lateral groove and dividing the land portion defined by each of the circumferential grooves and each of the lateral grooves into small land portions, the narrow grooves having a smaller groove width than the circumferential grooves and being formed with a bent portion in an intermediate portion, the bent portion being disposed inward in the lateral direction, and bend points of the bent portions being disposed at positions offset from one another in the circumferential direction.
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公开(公告)号：US11987077B2
公开(公告)日：2024-05-21
申请号：US15990545
申请日：2018-05-25
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Haruna Mizushima
CPC classification number: B60C11/0306 , B60C11/0309 , B60C11/0332 , B60C11/12 , B60C11/1204 , B60C11/1218 , B60C11/1236 , B60C2011/0346 , B60C2011/0348 , B60C2011/036 , B60C2011/0365 , B60C2011/0369 , B60C2011/0381 , B60C2011/0393 , B60C2011/1209 , B60C2011/1213
Abstract: A pneumatic tire includes first main grooves formed on outer sides, in the lateral direction, of a first land including an equatorial plane and extending in the circumferential direction; second main grooves outside, in the lateral direction, of the first main grooves and extending in the circumferential direction; auxiliary grooves formed on second lands between the first main grooves and the second main grooves, opening to the second main grooves, and terminating in the second lands; and first sipes inclined identically to the auxiliary grooves and crossing the second lands. The auxiliary grooves are formed into a shape bending at a bend point, and include a first portion extending from an opening end to the bend point, and a second portion extending from the bend point to a terminating end. A groove width of the first portion gradually reduces from the opening end to the bend point.
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公开(公告)号：US11904635B2
公开(公告)日：2024-02-20
申请号：US17929257
申请日：2022-09-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Kengo Fukuda , Ryota Ikeda , Yuto Ohte , Kohei Miyoshi
CPC classification number: B60C11/0304 , B60C11/1204 , B60C11/1236 , B60C11/1281 , B60C2011/0353 , B60C2011/1209
Abstract: A tread portion 2 includes four circumferential grooves 3 and five land portions 4. Each of the five land portions 4 is provided with no groove having a groove width greater than 2.0 mm, and is provided with only sipes 9. The four circumferential grooves 3 include a shoulder circumferential groove 5. The five land portions 4 include a shoulder land portion 11 and a middle land portion 13. The middle land portion 13 is provided with a plurality of middle sipes 30. The shoulder land portion 11 is provided with a plurality of shoulder sipes 20 each extending from the shoulder circumferential groove 5 to a position beyond a tread end. At least one of the shoulder sipes 20 includes an inclined portion 21. A maximum angle of the inclined portion 21 with respect to a tire axial direction is not greater than a maximum angle of the middle sipe 30 with respect to the tire axial direction. A difference between the maximum angle of the inclined portion 21 and the maximum angle of the middle sipe 30 is not greater than 5°.
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公开(公告)号：US11827059B2
公开(公告)日：2023-11-28
申请号：US17903430
申请日：2022-09-06
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Koichi Nakajima
CPC classification number: B60C11/1307 , B60C11/0309 , B60C11/1204 , B60C2011/0365 , B60C2011/0369 , B60C2011/1213 , B60C2011/133
Abstract: A tread portion includes a groove having first and second groove walls opposing each other, at least one first recess formed by partially recessing the first groove wall, and at least one second recess formed by partially recessing the second groove wall. A depth of each of the first and second recess from a ground contact surface is less than a groove depth of the groove. The first recess includes a first opening disposed at the first groove wall, and a first end portion extending substantially parallel to the first opening at a position farthest from the first opening. The second recess includes a second opening disposed at the second groove wall, and a second end portion extending substantially parallel to the second opening at a position farthest from the second opening. The first and second end portions are disposed so as not to oppose each other through the groove.
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Patent Agency Ranking
公开(公告)号：US20230339268A1
公开(公告)日：2023-10-26
申请号：US18130069
申请日：2023-04-03
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Koichi NAKAJIMA
CPC classification number: B60C11/1307 , B60C11/0306 , B60C11/1204 , B60C11/1236 , B60C2011/0365 , B60C2011/133 , B60C2011/1254
Abstract: A tire is provided with blocks in a tread portion. Each of the blocks has a block wall surface provided with first recesses. Each of the first recesses extends across a block ground contacting surface and the block wall surface. Each of the first recesses has a triangular ground contacting surface opening on the block ground contacting surface and a triangular wall surface opening on the block wall surface. The wall surface opening has a first end terminating without reaching a groove bottom of one of grooves demarcating the each of the blocks.
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公开(公告)号：US11772429B2
公开(公告)日：2023-10-03
申请号：US16904906
申请日：2020-06-18
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Shoichi Wada
CPC classification number: B60C11/11 , B60C11/033 , B60C11/1204 , B60C11/1307 , B60C2011/0346 , B60C2011/0372
Abstract: A tire includes a tread portion including a pair of shoulder main grooves, a crown region defined between the pair of the shoulder main grooves, and a pair of shoulder regions arranged on both outer sides of the pair of the shoulder main grooves. A land ratio of the crown region is 50% or more and 70% or less. A land ratio of the shoulder regions is 50% or more and 70% or less. The land ratio of the crown region is larger than the land ratio of the shoulder regions.
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公开(公告)号：US11745545B2
公开(公告)日：2023-09-05
申请号：US17391324
申请日：2021-08-02
Applicant: Toyo Tire Corporation
Inventor： Tetsuji Miyazaki
CPC classification number: B60C11/0304 , B60C11/0302 , B60C11/0306 , B60C11/1204 , B60C11/1236
Abstract: A pneumatic tire includes: a first longitudinal groove and a second longitudinal groove extending in a tire circumferential direction; a first lateral groove extending obliquely with respect to a tire width direction and connected to the first longitudinal groove and the second longitudinal groove; a second lateral groove extending obliquely toward a side opposite to the first lateral groove with respect to a tire width direction and connected to the first longitudinal groove and the second longitudinal groove; and a trapezoidal block defined by the first longitudinal groove, the second longitudinal groove, the first lateral groove, and the second lateral groove. The block includes a first sipe and a second sipe extending obliquely toward opposite sides in the tire width direction.
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公开(公告)号：US11731464B2
公开(公告)日：2023-08-22
申请号：US16722522
申请日：2019-12-20
Applicant: Apollo Tyres Global R&D B. V.
Inventor： Mihar Ved , Sanjay Patel , Jelin Fatima , Marko Veselinovic
CPC classification number: B60C11/13 , B60C11/01 , B60C11/11 , B60C11/1204 , B60C11/1218 , B60C11/1236 , B60C2011/013 , B60C2011/0346 , B60C2011/0358 , B60C2011/0362 , B60C2011/0369 , B60C2011/1213 , B60C2011/1295 , B60C2011/1338 , B60C2200/14
Abstract: It is provided a pneumatic tyre, the tyre having a circumferential direction, an axial direction and an equatorial plane, and the tyre comprising: a tread extending in a tyre circumferential direction, said tread comprising at least one circumferential groove running continuously in the circumferential direction, and a plurality of axial grooves or transverse grooves running at an angle to the axial direction, and a plurality of blocks defined by the circumferential groove and the axial grooves or transverse grooves, said blocks extending radially between an inner surface of the tread and a tread surface to come into contact with the ground, wherein at least some of the blocks comprise at least one wavy groove that extends from a circumferential groove inwardly into the block, and wherein the wavy groove has a depth extending radially from the tread surface to come into contact with the ground towards the inner surface that ends above the inner surface (26) of the tread.
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公开(公告)号：US11685195B2
公开(公告)日：2023-06-27
申请号：US16763961
申请日：2018-11-15
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Ryouichi Tomomatsu
CPC classification number: B60C11/1281 , B60C11/1204 , B60C11/1259 , B60C11/0304 , B60C2011/0341 , B60C2011/0348 , B60C2011/0381 , B60C2011/1254
Abstract: A tread pattern of a pneumatic tire includes continuous lands provided in half treads on first and second sides, circumferential main grooves, and sipes having a chamfered configuration. The sipes extend inward in a lateral direction from the circumferential main grooves and are closed in the middle of regions of the continuous lands. An edge shape of each of sipes on the first side includes an extending portion extending inward in the lateral direction constantly in an extension direction and a bent portion that is provided to be joined to an end of the first extending portion and that has the edge shape bent from the extension direction of the first extending portion to a direction close to the circumferential direction. Every portion of the first extending portion and the bent portion of the sipes are provided with a main body portion and a sipe chamfered portion.
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