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公开(公告)号：EP4400330A1
公开(公告)日：2024-07-17
申请号：EP23209301.3
申请日：2023-11-13
发明人： SHIBAMOTO, Shohei
CPC分类号： B60C9/2009 , B60C9/28 , B60C11/0083 , B60C9/2204 , B60C2009/221420130101 , B60C2200/1020130101 , B60C2009/202520130101
摘要： A motorcycle tire 1 comprises a tread portion 2 provided with a belt layer 7 and a radially outer band layer 8. The belt layer 7 comprises a first belt ply 11 on a carcass 6 and a second belt ply 12 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：EP4119360B1
公开(公告)日：2024-07-03
申请号：EP21767689.9
申请日：2021-03-10
IPC分类号： B60C9/22 , B60C1/00 , B60C9/00 , D06M13/395 , D06M15/41 , D06M15/693 , B60C9/20
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公开(公告)号：EP4385756A1
公开(公告)日：2024-06-19
申请号：EP23216326.1
申请日：2023-12-13
CPC分类号： B60C1/0016 , B60C2001/006620130101 , B60C9/0007 , B60C2009/002120130101 , B60C9/0064 , B60C9/2009 , B60C2009/201620130101 , B60C2009/206120130101 , B60C2009/206720130101 , B60C2009/206420130101 , B60C2009/207720130101 , B60C2009/208720130101 , B60C2011/002520130101
摘要： Provided is a tire with excellent handling stability during high-speed driving. A tire includes a belt layer (16) and a tread portion (4), the belt layer including at least one belt ply (38, 40) including a steel monofilament and a coating rubber, the belt layer having a ratio of E2/E1 of less than 0.90, wherein, when viewed in a radial cross-section of the tire, E1 denotes the number (ends/50 mm) of steel monofilaments aligned per 50 mm in the tire width direction in a region of the belt ply having the largest width in the tire axial direction which extends from the tire equator to a point Q that is located at 80% of a distance L in the tire axial direction from the tire equator to a point P that is located at an outer edge, with respect to the tire width direction, of the belt ply having the largest width in the tire axial direction; and E2 denotes the number (ends/50 mm) of steel monofilaments aligned per 50 mm in the tire width direction in a region of the belt ply having the largest width in the tire axial direction which extends from the point Q to the point P, the tread portion having a loss tangent, tanδt, of 0.25 or less as measured at a temperature of 30°C, an initial strain of 10%, a dynamic strain of ± 1%, and a frequency of 10 Hz in extension mode.
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公开(公告)号：EP3459764A1
公开(公告)日：2019-03-27
申请号：EP17799486.0
申请日：2017-05-18
发明人： KOUNO, Yoshihide , KON, Seiji
CPC分类号： B60C9/18 , B60C9/0007 , B60C9/20 , B60C9/2009 , B60C2009/0092 , B60C2009/1828 , B60C2009/2064
摘要： A tire is provided with a carcass that is formed so as to include a carcass ply that extends from one bead portion to another bead portion; a belt that is disposed at a tire radial direction outer side of the carcass, and that is formed by one sheet of belt ply in which plural cords that are disposed with an inclination of not more than 10° relative to a tire circumferential direction and extend around an entire tire circumference in the tire circumferential direction are coated with a rubber having a tensile modulus of elasticity in excess of 50 MPa, one end portion in a longitudinal direction of the cords being positioned at one end side in a width direction of the belt ply, and another end portion in the longitudinal direction of the cords being positioned at another end side in the width direction of the belt ply; and a tread that is disposed at a tire radial direction outer side of the belt.
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公开(公告)号：EP3212441B1
公开(公告)日：2018-12-05
申请号：EP14796643.6
申请日：2014-10-29
CPC分类号： B60C9/0292 , B60C9/08 , B60C9/2009 , B60C2009/2012 , B60C2009/2016 , B60C2200/06
摘要： A tire having uniform inflation growth is provided. The tire includes a body ply that is displaced from the conventional equilibrium curve along the bead, sidewall, and shoulder portions of the tire in a manner that provides more uniform inflation growth from bead portion to bead portion. Such construction reduces load sensitivity, reduces or eliminates the tire break-in period, and/or decreases the propensity for cracking—particularly along a groove bottom of the tread in the shoulder.
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公开(公告)号：EP2777949B1
公开(公告)日：2018-09-19
申请号：EP14155889.0
申请日：2014-02-20
发明人： Tanaka, Susumu
CPC分类号： B60C9/18 , B60C9/2009 , B60C9/30 , B60C11/0304 , B60C11/033 , B60C2009/2223 , B60C2009/2233 , B60C2009/2295 , Y10T152/10801
摘要： A pneumatic tire whose mounting location on a vehicle is specified and which comprises a belt disposed radially outside the carcass and composed of belt cords laid at an angle of from 15 to 40 degrees with respect to the tire circumferential direction, and a band disposed radially outside the belt and composed of first and second band cords laid at an angle of not more than 5 degrees with respect to the tire circumferential direction. The band comprises an inboard first part composed of the first band cord having a first modulus M1, and an outboard second part composed of the second band cord having a second modulus M2 more than the first modulus M1. The number of laminated plies of the band in the inboard first part is more than the number of laminated plies or a single ply of the band in the outboard second part.
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公开(公告)号：EP3127713B1
公开(公告)日：2018-09-12
申请号：EP15779709.3
申请日：2015-04-14
CPC分类号： B60C9/20 , B60C3/04 , B60C5/14 , B60C5/142 , B60C9/2009 , B60C9/22 , B60C9/28 , B60C9/30 , B60C11/033 , B60C15/00 , B60C19/002 , B60C2009/2016 , B60C2009/2019 , B60C2009/2022 , B60C2009/2223 , B60C2009/2228 , B60C2011/0025 , B60C2011/0381 , B60C2013/007 , Y02T10/862
摘要： To reduce noise while suppressing increase in rolling resistance, without affecting the formation of a carcass line, provided is a pneumatic tire (10) including: a carcass (13); an inclined belt (14), and an inner liner (17). The inclined belt (14) is disposed on the tire radial outer side of the crown portion of the carcass (13). The inclined belt (14) includes at least one inclined belt layer (16). The inclined belt layer (16) has cords extending as being inclined at 35° or more with respect to the tire circumferential direction. The inner liner (17) has a thickness of 1.5 mm or more at least in part of a side portion (19).
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公开(公告)号：EP3323635A1
公开(公告)日：2018-05-23
申请号：EP17202101.6
申请日：2017-11-16
发明人： CELIK, Ceyhan
CPC分类号： B60C7/102 , B60C7/26 , B60C7/28 , B60C9/1807 , B60C9/20 , B60C9/2009
摘要： A structurally supported tire (10) is disclosed comprising a ground contacting annular tread portion (20) and an annular hoop structure (30) for supporting a load on the tire (10). The hoop structure (30) includes a first double layer of steel cords (131) and a second double layer of steels cords (132) sandwiching a first layer of non-woven reinforcement (141), a second layer of non-woven reinforcement (142) and a single layer of steel cords (151), and a ply structure (60).
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公开(公告)号：EP3305550A4
公开(公告)日：2018-05-23
申请号：EP16799858
申请日：2016-05-16
申请人： BRIDGESTONE CORP
发明人： MIYAZONO TOSHIYA
CPC分类号： B60C9/005 , B60C9/0007 , B60C9/0028 , B60C9/0042 , B60C9/18 , B60C9/20 , B60C9/2009 , B60C9/22 , B60C9/263 , B60C2009/0078 , B60C2009/0092 , B60C2009/2016 , B60C2009/2019 , B60C2009/2022 , B60C2009/2077 , B60C2009/208 , B60C2009/266 , B60C2200/065
摘要： Provided are: a tire reinforcement member capable of improving the tire durability than before; and a tire using the same. The present invention provides a tire reinforcement member 1 including: a core material cord layer 2; and a spiral cord layer 3 spirally wound on the core material cord layer 2, wherein cords in the core material cord layer 2 are metal cords 2a having an inclination angle of 40° to 90° with respect to the longitudinal direction of the core material cord layer 2, and reinforcing cords 3a in the spiral cord layer 3 are organic fiber cords having a modulus of not less than 19 GPa.
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公开(公告)号：EP2842765B1
公开(公告)日：2018-04-11
申请号：EP13780848.1
申请日：2013-04-24
发明人： KOZUKI, Kentaro
CPC分类号： B60C9/28 , B60C3/04 , B60C9/2009 , B60C9/22 , B60C9/2204 , B60C9/30 , B60C2009/1828 , B60C2009/2012 , B60C2009/2219 , B60C2009/2228 , B60C2009/2233 , B60C2009/2242 , B60C2009/2252
摘要： A pneumatic tire with improved noise performance while preserving the steering stability and rolling resistance includes, on radially outer side of the crown portion of a carcass, an inclined belt consisting of inclined belt layer(s) having cords inclined at an angle of 35° to 90°relative to the tire circumferential direction, a circumferential belt consisting of circumferential belt layer(s) having cords extending along the circumferential direction, and a tread on radially outer side of the circumferential belt. The circumferential belt includes a high rigidity region across the tire equator wherein the circumferential rigidity per unit width is higher at any location thereof than at any location in the remaining regions. The circumferential rigidity per unit width in the remaining regions is constant in the tire width direction or increases toward the high rigidity region.
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