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公开(公告)号：US11453242B2
公开(公告)日：2022-09-27
申请号：US16343520
申请日：2017-10-20
Inventor： Richard Abinal , Mathieu Albouy , François-Xavier Bruneau , Cyril Charreire , Pierre Fevrier , Patrick Pallot
Abstract: Tire comprising major grooves with a depth at least equal to 4 mm and with a width at least equal to 1 mm. The radially outermost working layer (41) comprises at least one undulation (412). The undulation (412) is such that the undulation (412) portion of the working layer (41) represents at least 10% of the surface of the working layer (41), has an amplitude of at least 1 mm and is radially on the outside of the points of the working layer (41) that are in line with the bottom face (243) of the major groove (24) closest (412). All the layers of material (3, 6, 7) making up the radial stack of the crown structure (S) have mean surfaces parallel to that of the radially outermost working layer (41).
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公开(公告)号：US11642917B2
公开(公告)日：2023-05-09
申请号：US16343603
申请日：2017-10-20
Inventor： Richard Abinal , Mathieu Albouy , François-Xavier Bruneau , Cyril Charreire , Pierre Fevrier , Patrick Pallot
CPC classification number: B60C9/30 , B60C9/0042 , B60C9/1807 , B60C11/0304 , B60C2009/1828 , B60C2011/0353 , B60C2011/0355 , B60C2011/0383
Abstract: Tire comprising at least one working layer (41). The radially outermost one thereof comprises at least one undulation (412) radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the major groove (24) closest to undulation (412). The undulation (412) of the radially outermost working layer (41) is such that, over at least 10% of the radially outer surface (ROS) of the said working layer (41), the radial distance (do) between the radially outer surface (ROS) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) and the tread surface (21), which is the distance in line with the centre of the bottom face (243) of the major groove (24) closest to the said undulation (412).
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公开(公告)号：US11560020B2
公开(公告)日：2023-01-24
申请号：US16619209
申请日：2018-04-25
Inventor： Pierre Fevrier , Richard Abinal , Mathieu Albouy , Francois-Xavier Bruneau , Cyril Charreire , Patrick Pallot
Abstract: A tire (1) for a vehicle has a tread surface having a transverse radius RT and comprises a crown layer (3) that comprises at least one undulation (312) in line with a rib (26). The undulation (312) is such that it is radially on the outside of the points of the undulated layer in line with the center of the bottom face of the circumferential furrow (25) closest to the undulation (312) and has an amplitude at least equal to 1 mm. The radial distance (da) between at least one contact edge corner of a rib (26) in line with which an undulation is located and the transverse radius RT of the rib is at least equal to 0.2 mm and at most equal to 2 mm.
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