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公开(公告)号：US20210221178A1
公开(公告)日：2021-07-22
申请号：US16755296
申请日：2018-08-30
IPC分类号： B60C11/03
摘要： Provided is a motorcycle tire with improved wet grip performance while ensuring the rigidity during turning. Provided is a motorcycle tire in which: a tread portion is composed of a central rubber (11C) and a both-side rubber (11S) having a lower modulus than the central rubber; the boundary is from the tire equator to from ½ to ¾ of the half width of the peripheral length; a tire grounding portion includes a first groove, a second groove, and a third groove; a bent portion of the first groove and a bent portion of the second groove, an inner side end and an outer side end in the width direction of the second groove, an inner side end in the width direction of the third groove are located at positions from ⅛ to ⅜, from ¼ to ½, from 1/16 to 3/16, from ⅝ to ⅞, and from ½ to ⅝ of the half width of the peripheral length from the tire equator; the angles θ1, θ2, θ3, θ4, and θ5 formed by a long groove portion and a short groove portion of the first groove, an outer side groove portion and an inner side groove portion of the second groove, and the third groove with respect to the circumferential direction satisfy θ1≈θ2≈θ3≈θ5, and θ1>θ4; and a distance a between the first groove and the second groove, a distance b between the second groove and the third groove, and a distance c between the third groove and the first groove satisfy a≈b≈c.
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公开(公告)号：US20190118583A1
公开(公告)日：2019-04-25
申请号：US16094326
申请日：2017-04-14
摘要： A pneumatic tire (10) according to the present invention includes blocks (100) arranged adjacent to each other in a tread surface view, each of the blocks (100) having a wheel tread contacted with a road surface. A circumferential edge (100f) of the block (100) is defined against an adjacent block (100B) adjacent to the block (100A) by a sipe (200). An inner side groove (400) is formed at an inner side in a tire radial direction of the sipe (200). At least a part of the inner side groove (400) is communicated with the sipe (200). The circumferential edge (100f) of the block (100A) is defined against the adjacent block (100B) by the inner side groove (400).
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公开(公告)号：US20180304696A1
公开(公告)日：2018-10-25
申请号：US15769206
申请日：2016-10-28
CPC分类号： B60C11/24 , B60C11/0302 , B60C11/04 , B60C11/1204 , B60C11/1281 , B60C2011/0348 , B60C2011/0351 , B60C2011/0353 , B60C2011/0355 , B60C2011/0358 , B60C2011/0381 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227 , B60C2011/1231 , B60C2200/10
摘要： Provided is a pneumatic tire for a motorcycle that is capable of early exhibiting performance of a new tire and that enables it to be visually confirmed that the new tire is worn to a degree that the tire can fully exhibit the performance. The pneumatic tire for a motorcycle includes a tread portion 1 formed into a ring shape, in which the tread portion 1 is provided with shallow grooves 2 having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm and extending in a tire circumferential direction.
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公开(公告)号：US20180319218A1
公开(公告)日：2018-11-08
申请号：US15770246
申请日：2016-10-28
CPC分类号： B60C11/033 , B60C11/01 , B60C11/0302 , B60C11/0332 , B60C11/1236 , B60C11/24 , B60C2011/013 , B60C2011/0358 , B60C2011/036 , B60C2011/0362 , B60C2011/0372 , B60C2011/0374 , B60C2011/0381 , B60C2200/10
摘要： Provided is a pneumatic tire for motorcycles which can exhibit a performance of a new tire at an early period and enables visual confirmation that the tire as new is worn to such an extent as to be capable of sufficiently exhibiting its performance. The pneumatic tire for motorcycles includes a tread portion 10 formed into a ring shape, in which the tread portion 10 is provided with a width direction shallow groove 11b in which the shallow groove having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm is designed to extend at least in a tire width direction. A length of the width direction shallow groove 11b is greater than or equal to 50% of a width of a tire ground contact surface, and the width direction shallow groove 11b is provided at intervals which are shorter than a length of the tire ground contact surface.
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公开(公告)号：US20220281266A1
公开(公告)日：2022-09-08
申请号：US17641292
申请日：2020-09-11
发明人： Takamitsu NAKAMURA , Haruka SUZUKI
摘要： The circumferential groove and the circumferential groove of the pneumatic tire are formed inside than a tire equatorial line when mounted to the vehicle. In an outside center land portion and an inside center land portion, linear width direction sipes, width direction sipes and width direction sipes inclined with respect to the tire width direction are formed along the tire width direction. An inside shoulder land portion has a slick portion in which the surface of the inside shoulder land portion is slick in a grounding region of the inside shoulder land portion in a state where normal load is loaded on a tire.
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公开(公告)号：US20220072910A1
公开(公告)日：2022-03-10
申请号：US17421634
申请日：2019-12-11
发明人： Takamitsu NAKAMURA
摘要： Provided is a tire including, in a surface of a tread of the tire, a land portion row in which four land portions are arranged in parallel in a width direction of the tread, in a land portion on one end side of the land portion row, a recess that opens in a circumferential groove on an adjacent land portion side, and an intermittent sipe extending in an orientation intersecting the width direction of the tread, intermittently by being interrupted by the circumferential groove, from a position of a start end corresponding to the recess, across three land portions of the four land portions excluding the land portion on the one end side, wherein the intermittent sipe opens in a surface of each of the three land portions via an inclined surface from the surface of each of the three land portions toward the intermittent sipe.
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公开(公告)号：US20200238765A1
公开(公告)日：2020-07-30
申请号：US16845337
申请日：2020-04-10
摘要： Provided is a motorcycle tire that further improves wet grip performance during turning while ensuring rigidity during turning. Provided is a motorcycle tire in which: a tread portion is composed of a central rubber (11C) and a both-side rubber (11S) having a lower modulus than the central rubber (11C); the both-side rubber extends from the tire equator to from ¼ to ½ of the half width of the peripheral length; on a tire grounding portion, a first groove, a second groove and a third groove are included; a first bent portion, a second bent portion and a third bent portion of the first groove, an inner side end in the width direction of the second groove, and an inner side end in the width direction and an outer side end in the width direction of the third groove are positioned at from ½ to ⅝, from 1/16 to 3/16, from 3/16 to 5/16, from ½ to ¾, from 1/16 to 3/16, and from ⅝ to ⅞, respectively, of the half width of the peripheral length from the tire equator; and angles formed by a first groove portion, a second groove portion, a third groove portion, a fourth groove portion, the second groove, a fifth groove portion, and a sixth groove portion with respect to the circumferential directions are from 35 to 45°, from 55 to 65°, from 20 to 30°, from 55 to 65°, from 55 to 65°, from 55 to 65°, and from 15 to 25°, respectively.
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