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公开(公告)号：EP3308981A4
公开(公告)日：2018-05-09
申请号：EP16811311
申请日：2016-04-19
申请人： BRIDGESTONE CORP
发明人： KURATA TAKAYUKI
CPC分类号： B60C11/1323 , B60C11/0302 , B60C11/0309 , B60C11/0316 , B60C11/1307 , B60C2011/0313 , B60C2011/1213
摘要： Taking a groove side-wall to a position at 1/2 a groove depth from a tread face (12A) of lug groove (16) as a tread-in side first inclined portion (16Fa), and taking a groove side-wall from the position at 1/2 groove depth to a groove bottom as a tread-in side second inclined portion (16Fb), then the following A1 is set less than the following B1. When viewed in cross-section orthogonal to a length direction of the lug groove (16): A1 is an area of a region enclosed by an imaginary line (FL3) passing through an end portion on a tread face side of the tread-in side first inclined portion (16Fa) and perpendicular to the tread face (12A), by an imaginary line (FL5) passing through an end portion on a groove bottom side of the tread-in side first inclined portion (16Fa) and orthogonal to the imaginary line (FL3), and by the tread-in side first inclined portion (16Fa); and B1 is an area of a region enclosed by an imaginary line (FL4) passing through an end portion on a tread face (12A) side of the tread-in side second inclined portion (16Fb) and perpendicular to the tread face (12A), by an imaginary line (FL6) passing through the deepest portion of the lug groove (16) and parallel to the tread face (12A), and by the tread-in side second inclined portion (16Fb).
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公开(公告)号：EP3305556A1
公开(公告)日：2018-04-11
申请号：EP17191888.1
申请日：2017-09-19
CPC分类号： B60C11/1307 , B60C11/0304 , B60C11/045 , B60C2011/1338
摘要： A vehicle tire 1 comprises a tread portion 2 provided in the tread surface 2a with a circumferentially continuously extending groove 3 having a bottom 11 and a pair of opposite side walls 12, wherein at least one of the side walls 12 is provided with protrusions 15 protruding into the groove 3 and arranged in the tire circumferential direction. The protrusion 15 has a gradually increasing part 16 in which the area of the cross section of the protrusion 15 being parallel with the tread surface 2a is gradually increased toward the radially outer side of the tire.
摘要翻译： 车辆轮胎1包括设置在胎面表面2a中的胎面部2，其具有沿周向连续延伸的凹槽3，凹槽3具有底部11和一对相对的侧壁12，其中至少一个侧壁12设置有突出部15， 进入槽3并沿轮胎周向布置。 突起15具有逐渐增大的部分16，其中突起15的与胎面表面2a平行的横截面的面积朝着轮胎的径向外侧逐渐增大。
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公开(公告)号：EP3272552A4
公开(公告)日：2018-03-21
申请号：EP16765007
申请日：2016-03-16
申请人： BRIDGESTONE CORP
发明人： YAMAGUCHI MASASHI
CPC分类号： B60C11/1307 , B60C11/0311 , B60C11/032 , B60C2011/0365 , B60C2011/0367 , B60C2011/0369 , B60C2011/0383 , B60C2200/065
摘要： A tire includes at least one air intake groove (22, 122) provided in a tire tread section (12, 112), extending in a direction intersecting a tire circumferential direction, and having a groove width (W, W1) smaller than a groove depth (D, D1), an air introduction groove(24, 124) opening to a tread surface side and communicating with the air intake groove (22, 122) to introduce an air (AR) on the tread surface side into the air intake groove (22, 122) accompanying tire rotation, and an air-guiding section (26, 30, 144, 146, 154, 156, 164, 166, 174, 176) having an air-guiding surface (26b, 30b, 144f, 146f) intersecting the air intake groove (22, 122) and directed outward in a position intersecting the air intake groove (22, 122) with respect to a center position in a groove longitudinal direction of the air intake groove (22, 122) to guide an air (AR) introduced into the air intake groove (22, 122) by the air introduction groove (24, 124) to a groove bottom (22c, 122c) side of the air intake groove (22, 122) by the air-guiding surface (26b, 30b, 1444f, 146f).
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公开(公告)号：EP3208111B1
公开(公告)日：2018-03-21
申请号：EP17150043.2
申请日：2017-01-02
发明人： YOSHIMURA, Kozo
CPC分类号： B60C11/0309 , B60C11/0304 , B60C11/0306 , B60C11/0311 , B60C11/12 , B60C11/1236 , B60C11/1307 , B60C11/1392 , B60C2011/0341 , B60C2011/0365 , B60C2011/0386 , B60C2011/133
摘要： A tire is provided in a first half-tread portion with a first shoulder main groove and a first shoulder land region 4D and a first middle land region 4B on the axially outside and axially inside thereof, respectively. The first shoulder land region 4D is divided into first shoulder blocks 7D each provided with a first shoulder chamfer portion 10 at the corner portion 10 between the ground contacting surface and the groove side wall of the first shoulder main groove 3C. Both ends of the first shoulder chamfer portion 10 terminate without being connected to the first shoulder transverse grooves 6D. The first middle land region 4B is provided at the corner 14 between its ground contacting surface and the groove side wall of the first shoulder main groove with first middle chamfer portions 15 each positioned in a part of the range between the adjacent first middle rug grooves 6B. The first middle chamfer portions 15 are disposed so as face the first shoulder chamfer portions 10.
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公开(公告)号：EP3248812A4
公开(公告)日：2018-03-14
申请号：EP16768290
申请日：2016-02-26
申请人： BRIDGESTONE CORP
CPC分类号： B60C11/0309 , B60C11/0302 , B60C11/0306 , B60C11/11 , B60C11/1307 , B60C11/1323 , B60C2011/0344 , B60C2011/0346 , B60C2011/0353 , B60C2011/0365
摘要： Heat radiation of circumferential grooves on both sides of a tread center portion is enhanced, and thus a cooling effect of a tread portion by the circumferential grooves is increased. A block (31) has a first wall surface (32) formed from a position where a lateral groove (14) is opened to a first circumferential groove (11) toward an upstream side (G) of an air flow, a second wall surface (33) formed from a position where the lateral groove (14) is opened to a second circumferential groove (12) toward the upstream side (G) of the air flow, and a block corner portion (34) formed at a position where the lateral groove (14) is opened to the first circumferential groove (11). A virtual surface (36) obtained by extending the first wall surface (32) of the block (31) on the upstream side (G) intersects with the block corner portion (34) of the block (31) on a downstream side (H) or passes through a position in the first circumferential groove (11) inside the block corner portion (34) in a tire width direction (K). A groove width (W) of the second circumferential groove (12) gradually increases toward the downstream side (H) of the air flow at the second wall surface (33).
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公开(公告)号：EP3081398B1
公开(公告)日：2018-03-14
申请号：EP16164366.3
申请日：2016-04-08
发明人： YAMAOKA, Hiroshi
CPC分类号： B60C11/0332 , B60C11/0306 , B60C11/0311 , B60C11/12 , B60C11/1307 , B60C11/1392 , B60C2011/0334 , B60C2011/0341 , B60C2011/0365 , B60C2011/0372 , B60C2011/0376 , B60C2011/0386 , B60C2011/133
摘要： A pneumatic tire includes a tread portion being provided with at least one circumferentially and continuously extending main groove and at least one land portion (6) adjacent to the main groove. The land portion includes a corner portion (20) formed between a ground contact surface (18) and a sidewall (19) of the land portion (6) on the side of the main groove . The land portion (6) is provided with a lug groove (10) extending from the main groove and terminating within the land portion (6). The corner portion (20) includes a chamfered portion (21) and a non-chamfered portion (22). The chamfered portion (21) includes a first end in communication with the lug groove (10).
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公开(公告)号：EP3100872B1
公开(公告)日：2018-01-31
申请号：EP16156798.7
申请日：2016-02-23
CPC分类号： B60C11/11 , B60C11/1307 , B60C2011/133
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公开(公告)号：EP3194183A1
公开(公告)日：2017-07-26
申请号：EP15729522.1
申请日：2015-06-22
IPC分类号： B60C11/13
CPC分类号： B60C11/1307 , B60C2011/133 , B60C2011/1338
摘要： The invention relates to a pneumatic vehicle tyre comprising a tread which has at least one peripheral groove (1), which is delimited by a groove base (2) and two groove flanks (3, 3') which face each other and in which at least one sound absorber (6) configured in two parts is positioned, the parts (7, 8) of which have different volumes; the parts (7, 8) of the sound absorber (6) are separated from each other in an axial direction and are adjacently formed on the groove flanks (3, 3') which face each other, wherein the smaller part (7) faces a U-shaped recess (9) which passes through the larger part (8) in the radial direction and is parallel in the cross-section to the tread surface, wherein the distance (a2) measured in the groove base (2) between the parts (7, 8) of the sound absorber (6) is 2.0 mm to 3.0 mm when viewed in a longitudinal direction through the peripheral groove (1).
摘要翻译： 本发明涉及一种充气车辆轮胎，其包括胎面，所述胎面具有至少一个由凹槽基部（2）和两个彼此面对的凹槽侧面（3,3'）限定的周向凹槽（1），并且其中在 定位配置成两部分的至少一个吸声器（6），其部分（7,8）具有不同的体积; 吸音器6的部分7,8在轴向方向上彼此分离并且邻近地形成在彼此面对的凹槽侧面3,3'上，其中较小部分7面向 （2）之间测量的距离（a2），所述凹槽（9）在径向方向上穿过所述较大部分（8）并且在与所述胎面表面平行的横截面中， 当通过周边槽（1）纵向观察时，吸声器（6）的部分（7,8）为2.0mm至3.0mm。
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公开(公告)号：EP3009277B1
公开(公告)日：2017-06-21
申请号：EP14811548.8
申请日：2014-04-04
发明人： KAWAKITA, Akihiro
CPC分类号： B60C11/0309 , B60C11/0327 , B60C11/11 , B60C11/1307 , B60C11/1376 , B60C2011/0334 , B60C2011/0341 , B60C2011/1213
摘要： Heel-and-toe wear can be suppressed while securing snow performance. Includes: a block (14) that is provided at a tread (16), and that is demarcated by mutually intersecting circumferential direction main grooves (22) and lateral main grooves (24) (main grooves) respectively extending around a tire circumferential direction and along a tire width direction; a first step portion (11) that extends along a wall portion (14F) at one tire circumferential direction side of the block (14), and that has a height from a groove bottom (24A) of the lateral main groove (24) (main groove) where the one side wall portion (14F) is present, which is lower than a tread face (14A); and a second step portion (12) that extends along a side wall portion (14R) at another tire circumferential direction side of the block (14), that has a height from a groove bottom (24A) of the lateral main groove (24) (main groove) where the other side wall portion (14R) is present, which is lower than the tread face (14A), and that has a smaller width than the first step portion (11).
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