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公开(公告)号：US20180312007A1
公开(公告)日：2018-11-01
申请号：US15870518
申请日：2018-01-12
Applicant: SUMITOMO RUBBER INDUSTRIES LTD.
Inventor： Shohei SHIBAMOTO
IPC: B60C11/00
CPC classification number: B60C9/2009 , B60C9/2204 , B60C11/005 , B60C11/0058 , B60C2009/2022 , B60C2009/2041 , B60C2009/2087 , B60C2011/0025 , B60C2200/10
Abstract: A tire 2 includes: a tread 4 forming a tread surface 20; a band 14 disposed inward of the tread 4 in a radial direction; and a belt 12 disposed between the tread 4 and the band 14 in the radial direction. The tread 4 includes a center region 22 disposed at a center in an axial direction, and a shoulder region 24 disposed on an outer side in the axial direction. The band 14 includes a band cord. The band cord is helically wound and extends in a circumferential direction. The belt 12 includes a belt cord. The belt cord extends so as to be tilted relative to an equator plane. An absolute value of an angle of the belt cord relative to the equator plane is not less than 70° and not greater than 90°.
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公开(公告)号：US20130228256A1
公开(公告)日：2013-09-05
申请号：US13768130
申请日：2013-02-15
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Shohei SHIBAMOTO
IPC: B60C11/03
CPC classification number: B60C11/0304 , B60C11/0302 , B60C11/033 , B60C2011/0348 , B60C2011/036 , B60C2011/0372 , B60C2011/0376 , B60C2200/10
Abstract: A motorcycle tire comprises a tread portion provided with a plurality of inner inclined grooves and inclined narrow grooves in both sides of a tire equator, wherein each inner inclined groove extends from an axially inner end to the outer end with an angle of 0-20 degrees with respect to a tire circumferential direction, the inner end of the inner inclined groove is located in a developed length within 5% of a tread half developed-width from the tire equator, each inner inclined groove has a circumferential length of 70-85% of a first pitch, each inclined narrow groove with a groove width of 0.5-2.0 mm is provided between circumferentially adjacent inner inclined grooves and has an angle with respect to a circumferential direction of the tire larger than that of the inner inclined groove.
Abstract translation: 摩托车轮胎包括在轮胎赤道两侧设置有多个内倾斜槽和倾斜窄槽的胎面部，其中每个内倾斜槽以轴向内端延伸至外端，角度为0-20度 相对于轮胎周向，内倾斜槽的内端位于从轮胎赤道的胎面半展宽度的5％以内的展开长度，每个内倾斜槽的周向长度为70-85％ 在周向相邻的内倾斜槽之间设置有槽宽度为0.5-2.0mm的每个倾斜的窄槽，并且相对于轮胎的圆周方向的角度大于内倾斜槽的圆周方向的角度。
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公开(公告)号：US20240227461A9
公开(公告)日：2024-07-11
申请号：US18375749
申请日：2023-10-02
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Shohei SHIBAMOTO
IPC: B60C13/00
CPC classification number: B60C13/00 , B60C2013/007
Abstract: A motorcycle tire includes a tread portion, a pair of sidewall portions, a pair of bead portions, and a carcass extending between the bead portions in a toroidal manner. Each of the sidewall portions is provided with a sidewall rubber. In each of the sidewall portions, a minimum thickness (Ts) is 50% or less of a minimum tire thickness (Ta) from a respective one of tread edges to a tire inner cavity surface. A minimum thickness (Ds) of the sidewall rubber is from 0.3 to 1.9 mm.
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公开(公告)号：US20240227451A1
公开(公告)日：2024-07-11
申请号：US18535078
申请日：2023-12-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Shohei SHIBAMOTO
CPC classification number: B60C9/22 , B60C9/2006
Abstract: A motorcycle tire comprises a tread portion provided with a belt layer and a radially outer band layer. The belt layer comprises a first belt ply on a carcass 6 and a second belt ply thereon. The band layer is made of a spirally wound band cord and has a developed width smaller than that of the belt layer. In a meridian cross-section of the tire mounted on a standard wheel rim at an internal pressure of 10 kPa: the radius of curvature Rc of the ground contacting surface of the tire in its crown region is less than 95% of the cross-sectional width of the tire; and the radius of curvature Rc is smaller than a radius of curvature Rb of the ground contacting surface in shoulder regions.
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公开(公告)号：US20240157732A1
公开(公告)日：2024-05-16
申请号：US18379544
申请日：2023-10-12
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Shohei SHIBAMOTO
IPC: B60C11/00
CPC classification number: B60C11/0008 , B60C2011/0025 , B60C2011/0033 , B60C2200/10
Abstract: A motorcycle tire includes a tread portion between a pair of tread edges. The tread portion includes a tread rubber forming a tread surface. The tread rubber includes a first rubber layer comprising a first rubber and forming the tread surface, and a second rubber layer comprising a second rubber and being adjacent inwardly in a tire radial direction of the first rubber layer. A loss tangent tan δa of the first rubber at 100 degrees C. is smaller than a loss tangent tan δb of the second rubber at 100 degrees C. A glass transition temperature of the first rubber is lower than a glass transition temperature of the second rubber.
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公开(公告)号：US20240131873A1
公开(公告)日：2024-04-25
申请号：US18375749
申请日：2023-10-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Shohei SHIBAMOTO
IPC: B60C13/00
CPC classification number: B60C13/00 , B60C2013/007
Abstract: A motorcycle tire includes a tread portion, a pair of sidewall portions, a pair of bead portions, and a carcass extending between the bead portions in a toroidal manner. Each of the sidewall portions is provided with a sidewall rubber. In each of the sidewall portions, a minimum thickness (Ts) is 50% or less of a minimum tire thickness (Ta) from a respective one of tread edges to a tire inner cavity surface. A minimum thickness (Ds) of the sidewall rubber is from 0.3 to 1.9 mm.
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公开(公告)号：US20220016933A1
公开(公告)日：2022-01-20
申请号：US17358004
申请日：2021-06-25
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Shohei SHIBAMOTO
Abstract: A tire comprises a tread portion provided with a band composed of at least one band cord wound spirally and circumferentially of the tire and embedded in the tread portion. When a band cord piece is taken out from the above-said at least one band cord embedded in the tread portion and measured for the length, a length Lb is equal to or smaller than a length La at least in a part of the tread portion, where the length Lb is measured at a first point of time after the band cord piece has been taken out, and the length La is measured at a second point of time after the first point of time.
