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1. 发明授权

EP3222441B1 STUD AND STUDDABLE TIRE 失效
公开(公告)号：EP3222441B1
公开(公告)日：2019-06-26
申请号：EP15860521.2
申请日：2015-11-13
申请人： Bridgestone Corporation
发明人： SAWADA Hiroki , ITO Tomoaki , WADA Junichiro , KAWAMATA Satoru
IPC分类号： B60C11/16

2. 发明公开

EP3363658A1 STUDDABLE TIRE, AND METHOD FOR SELECTING RUBBER FOR FORMING TOP RUBBER LAYER AND RUBBER FOR FORMING BASE RUBBER LAYER OF TREAD OF STUDDABLE TIRE 有权
公开(公告)号：EP3363658A1
公开(公告)日：2018-08-22
申请号：EP16855544.9
申请日：2016-10-14
申请人： Bridgestone Corporation
发明人： ITO Tomoaki
IPC分类号： B60C11/16 , B60C11/00
摘要： A studdable tire capable of retaining performances such as edge performance and anti-stud-loss performance for a long period of time is provided. Such a studdable tire has studs inserted in stud holes such that the pin section thereof protrudes from the surface of the tread. And the rubber for forming a top rubber layer and the rubber for forming a base rubber layer of the tread satisfy the following evaluation formula (1): 0.5 ≦ depth of stud wear/depth of rubber wear of top rubber layer = kx (elastic modulus of rubber of base rubber layer at room temperature × elastic modulus of rubber of top rubber layer at room temperature) ≦ 1.5 ...... (1)
where "wear depth of stud" = "height of stud before wear" - "height of stud after wear", "wear depth of rubber of top rubber layer" = "layer thickness of tread before wear" - "layer thickness of tread after wear", and (k is a constant).

3. 发明授权

EP2955037B1 STUDDABLE TIRE 失效
公开(公告)号：EP2955037B1
公开(公告)日：2018-07-11
申请号：EP14748611.2
申请日：2014-02-06
申请人： Bridgestone Corporation
发明人： ITO Tomoaki , WATANABE Yuki
IPC分类号： B60C11/16 , B60C11/04 , B60C11/03 , B60C11/12
CPC分类号： B60C11/0302 , B60C11/032 , B60C11/1236 , B60C11/1625 , B60C2011/0388 , B60C2011/1213
摘要： Stud holes (9) are formed in land portions defined by circumferential grooves extending in a tire circumferential direction and lug grooves extending in a direction intersecting the circumferential grooves provided in a tire tread of a studdable tire, first and second grooves (12, 13) having both ends thereof terminating within the land portion are disposed on a kick-out side of a region (R) enclosed by two circles (C1, C2) of different radii each having a center concentrical to a center of the stud hole (9) on the land surface, and a third land portion including intra-land grooves (14a) having both ends thereof terminating within the land portion and communicating grooves (14b) communicating the intra-land grooves (14a) with lug grooves, is disposed on a step-in side of the region (R), so as to inhibit ice powder occurring during vehicular travel on an ICE road surface from adhering to the spike pins, whereby, the steering stability performance of the studdable tire can be enhanced.

4. 发明授权

EP2977231B1 STUD PIN AND TIRE USING SAME 有权
标题翻译：用钉子和轮胎使用相同
公开(公告)号：EP2977231B1
公开(公告)日：2017-07-05
申请号：EP14768635.6
申请日：2014-03-05
申请人： Bridgestone Corporation
发明人： SAWADA Hiroki , KAWAMATA Satoru , WATANABE Yuki , ITO Tomoaki
IPC分类号： B60C11/16
CPC分类号： B60C11/1675 , B60C11/1643 , B60C11/1656

5. 发明公开

EP2955037A1 STUDDABLE TIRE 失效
标题翻译：麻省理工学院BESTÜCKBARERREIFEN
公开(公告)号：EP2955037A1
公开(公告)日：2015-12-16
申请号：EP14748611.2
申请日：2014-02-06
申请人： Bridgestone Corporation
发明人： ITO Tomoaki , WATANABE Yuki
IPC分类号： B60C11/16 , B60C11/04
CPC分类号： B60C11/0302 , B60C11/032 , B60C11/1236 , B60C11/1625 , B60C2011/0388 , B60C2011/1213
摘要： Stud holes (9) are formed in land portions defined by circumferential grooves extending in a tire circumferential direction and lug grooves extending in a direction intersecting the circumferential grooves provided in a tire tread of a studdable tire, first and second grooves (12, 13) having both ends thereof terminating within the land portion are disposed on a kick-out side of a region (R) enclosed by two circles (C1, C2) of different radii each having a center concentrical to a center of the stud hole (9) on the land surface, and a third land portion including intra-land grooves (14a) having both ends thereof terminating within the land portion and communicating grooves (14b) communicating the intra-land grooves (14a) with lug grooves, is disposed on a step-in side of the region (R), so as to inhibit ice powder occurring during vehicular travel on an ICE road surface from adhering to the spike pins, whereby, the steering stability performance of the studdable tire can be enhanced.
摘要翻译：螺栓孔（9）形成在沿轮胎周向延伸的周向槽限定的陆部，以及沿与交替布置的轮胎的轮胎胎面相交的周向槽相交的方向延伸的横向花纹沟，第一和第二槽（12,13）其两端终止于陆部内的区域设置在由具有与螺柱孔（9）的中心的中心相同的不同半径的两个圆（C1，C2）所包围的区域（R）的踢出侧，以及第三陆部，其包括其两端终止于所述陆部内部的槽内槽（14a），并且将所述槽内槽（14a）与所述槽沟连通的连通槽（14b）设置在所述槽从而能够抑制在ICE路面上的车辆行驶期间发生的冰粉附着于穗状销，从而能够提高可分级轮胎的转向稳定性。

6. 发明授权

EP3363658B1 STUDDABLE TIRE, AND METHOD FOR SELECTING RUBBER FOR FORMING TOP RUBBER LAYER AND RUBBER FOR FORMING BASE RUBBER LAYER OF TREAD OF STUDDABLE TIRE 有权
公开(公告)号：EP3363658B1
公开(公告)日：2019-12-18
申请号：EP16855544.9
申请日：2016-10-14
申请人： Bridgestone Corporation
发明人： ITO Tomoaki
IPC分类号： B60C11/16 , B60C11/00

7. 发明公开

EP3222441A1 STUD AND STUDDABLE TIRE 失效
标题翻译：螺柱和可研磨轮胎
公开(公告)号：EP3222441A1
公开(公告)日：2017-09-27
申请号：EP15860521.2
申请日：2015-11-13
申请人： Bridgestone Corporation
发明人： SAWADA Hiroki , ITO Tomoaki , WADA Junichiro , KAWAMATA Satoru
IPC分类号： B60C11/16
CPC分类号： B60C11/16 , B60C11/1675
摘要： The invention provides a stud featuring not only high edge effect improving braking and acceleration performance, but also high durability of the pin section that improves anti-stud-loss performance and has greater strength capable of reducing damage to the pin section and a studdable tire fitted with such studs. The pin section (3) of the stud (1) according to this invention has a pair of straight edge portions (31, 32) defined by peripheral edges of one end surface along the central axis, or peripheral profile lines in the cross section orthogonal to the central axis, opposite each other with the central axis therebetween, a pair of curved edge portions (33, 34) extending from the ends of the pair of straight edge portions and outwardly bulging opposite each other, and curved border edge portions (35, 36, 37, 38), which are border portions between the straight edge portions and the curved edge portions outwardly bulging away from the central axis.
摘要翻译：本发明提供一种螺柱，其不仅具有提高制动和加速性能的高边缘效果，而且具有高耐久性的销部分，其提高了抗螺柱损失性能并且具有更大的强度，能够减少对销部分的损坏，并且可拆卸的轮胎与这样的螺柱。根据本发明的立柱（1）的销部分（3）具有一对由沿着中心轴线的一个端面的周边边缘限定的直边缘部分（31,32），或者在正交截面中的周边轮廓线所述一对直边缘部分从所述一对直边缘部分的端部延伸并且彼此相对地向外凸出;以及弯曲的边缘边缘部分（35,35），所述边缘边缘部分，36,37,38），它们是直边部分和远离中心轴线向外凸出的弯曲边缘部分之间的边界部分。

8. 发明公开

EP2977231A1 STUD PIN AND TIRE USING SAME 有权
标题翻译：用钉子和轮胎使用相同
公开(公告)号：EP2977231A1
公开(公告)日：2016-01-27
申请号：EP14768635.6
申请日：2014-03-05
申请人： Bridgestone Corporation
发明人： SAWADA Hiroki , KAWAMATA Satoru , WATANABE Yuki , ITO Tomoaki
IPC分类号： B60C11/16
CPC分类号： B60C11/1675 , B60C11/1643 , B60C11/1656
摘要： Provided are: a stud pin and a tire, which exhibit improved driving and braking performances on icy and snowy road surfaces as well as improved stud-off resistance. The stud pin is intended to be used on a tire. The stud pin comprises: a body part 1 which is embedded in a tire tread; and a pin portion 2 which is arranged in a protruding manner on one end of the body part and protrudes from the surface of the tire tread, the body part comprising a main body part 3 and a flange portion 4. The main body part assumes a line-symmetrical shape having two symmetry axes A and B that are perpendicular to each other; the flange portion assumes a line-symmetrical shape having at least one symmetry axis; when a symmetry axis of the flange portion that represents a maximum length of the flange portion in the axial direction is defined as longitudinal symmetry axis C, the maximum length of the flange portion in the direction perpendicular to the longitudinal symmetry axis C is shorter than the length of the flange portion along the longitudinal symmetry axis C; and, when the lengths of the main body part on the symmetry axes A and B of the main body part are defined as La and Lb, respectively, the symmetry axis A satisfying La ≥ Lb and the longitudinal symmetry axis C of the flange portion are in substantially the same direction.
摘要翻译：提供：螺柱销和轮胎，它们在冰雪路面上表现出改善的驾驶和制动性能以及改善的防脱落性能。螺栓销旨在用于轮胎。柱销包括：嵌入轮胎胎面中的主体部分1; 以及销部2，该销部2以突出的方式布置在主体部的一端上并且从轮胎胎面的表面突出，主体部包括主体部3和凸缘部4.主体部呈现具有彼此垂直的两个对称轴线A和B的线对称形状; 所述凸缘部呈现具有至少一个对称轴线的线对称形状; 当代表凸缘部分在轴向上的最大长度的凸缘部分的对称轴线被定义为纵向对称轴线C时，凸缘部分在垂直于纵向对称轴线C的方向上的最大长度比凸缘部分沿着纵向对称轴线C的长度; 并且当主体部分的对称轴线A和B上的主体部分的长度分别被定义为La和Lb时，满足La≥Lb的对称轴A和凸缘部分的纵向对称轴线C是在基本相同的方向上。

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