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1.发明授权
公开(公告)号：EP2406065B1
公开(公告)日：2013-07-31
申请号：EP10707525.1
申请日：2010-03-08
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公开(公告)号：EP3946974A1
公开(公告)日：2022-02-09
申请号：EP20731386.7
申请日：2020-03-24
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4.发明公开
公开(公告)号：EP2406065A1
公开(公告)日：2012-01-18
申请号：EP10707525.1
申请日：2010-03-08
摘要： The invention relates to a method for making a tyre having a tread in which radial blind grooves are formed in the tread blocks forming the tread design, including a step during which said grooves (33) are formed in the unvulcanised tread (3) for covering the blank of said tyre, said step being characterised in that it comprises inserting, for a sufficient amount of time in the radially inner surface (32) of said tread (3), one or more blades (22) heated at a temperature higher than the vulcanisation temperature of the material of said tread (3) in order to superficially vulcanise the walls of the groove contacting said blade (22) so as to prevent the re-adhesion of the surfaces to one another once the blade is removed from the groove.
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公开(公告)号：EP3233534A1
公开(公告)日：2017-10-25
申请号：EP15802124.6
申请日：2015-12-01
发明人： PERRIN, Frédéric , LAWSON, Robert , LIMROTH, John , PALLOT, Patrick , LEBRUN, Xavier , ABAD, Vincent
CPC分类号： B60C11/14 , B60C9/0042 , B60C9/005 , B60C9/18 , B60C11/00 , B60C11/18 , B60C2011/0016 , B60C2011/0025 , B60C2011/0033
摘要： The invention relates to a tyre comprising a tangential direction XX', an axial direction YY' and a radial direction ZZ' and comprising at least one carcass reinforcement (2) surmounted radially on the outside by a crown reinforcement (3), itself radially on the inside of a tread (4), the said crown reinforcement (3) consisting of at least one layer of reinforcing elements, the said tread comprising reinforcers (8) and being connected to two beads (5) by two sidewalls (6), the said beads (5) being intended to come into contact with a rim, each bead (5) comprising at least one circumferential reinforcing element (7). The tyre is characterized in that the tread (4) is made of a rubber composition having a shear modulus greater than or equal to 0.4MPa and less than 1MPa, in that the reinforcers (8) of the tread (4) have, in the direction in which they are present, an extensibility less than or equal to 30%, and in that the extensibility of the reinforcers is identical or different in the directions YY' and XX' or only in the direction YY'.
摘要翻译： 本发明涉及一种轮胎，其包括切线方向XX'，轴向方向YY'和径向方向ZZ'并且包括至少一个胎体增强件（2），该胎体增强件（2）在径向外侧通过胎冠增强件（3） 所述胎冠增强件3由至少一层增强元件组成，所述胎面包括增强件8并且通过两个侧壁6连接到两个胎圈5， 所述胎圈（5）旨在与轮辋接触，每个胎圈（5）包括至少一个周向增强元件（7）。 该轮胎的特征在于，胎面（4）由剪切模量大于或等于0.4MPa且小于1MPa的橡胶组合物制成，胎面（4）的增强件（8）在 存在的方向，伸长率小于或等于30％，并且增强件的延伸性在YY'和XX'方向上或仅在YY'方向上相同或不同。
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公开(公告)号：EP3044014A1
公开(公告)日：2016-07-20
申请号：EP14747380.5
申请日：2014-08-05
IPC分类号： B60C11/03
CPC分类号： B60C11/033 , B60C11/0302 , B60C11/0304 , B60C11/0323 , B60C2011/0353
摘要： The invention relates to a tyre for a private passenger vehicle comprising a tread extended on either side by flanks, that tread being provided with an asymmetrical sculpted design relative to a median plane dividing that tread into two parts with a same axial width, that axial width being measured in a direction parallel to the axis of rotation, an outer part and an inner part, that outer part being situated between that median plane and the flank designed to be placed on the outside of a vehicle and the inner part being situated between the same plane and the flank designed to be placed toward the inside of the same vehicle, the inner part and the outer part each comprising at least one hollow forming a slot or designed to form a slot from a partial wearing-off of the tread, those hollows defining, in new condition and for each part (inner and outer), a total hollow volume, ViO and VeO, respectively, a hollow surface rate, TiO and TeO, respectively, those rates being different from zero and such that in new condition, there is a ratio RO between the hollow volume of the inner part and the hollow volume of the outer part, and in each worn condition (U) chosen between the initial state and the wear limit of the tread, there is a ratio RU between the hollow volume of the inner part and the hollow volume of the outer part, said tyre being characterised in that, at least from 80% wear measured on the tread thickness to be worn off, the ratio RU is greater than the ratio RO.
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