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    Tread for heavy-goods vehicle tire
    1.
    发明授权
    Tread for heavy-goods vehicle tire 有权

    公开(公告)号：US10953700B2

    公开(公告)日：2021-03-23

    申请号：US15115357

    申请日：2015-02-02

    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  MICHELIN RECHERCHE ET TECHNIQUE, S.A.

    Inventor： Maxime Rolland ,  Fabien Marlier ,  Ronald Cress ,  Ralston Moore

    IPC: B60C11/12 ,  B60C11/03 ,  B60C11/04

    Abstract: The tread has a total axial width W and a wearable thickness PMU of material and has at least four grooves on each side of a midplane that divides the tread axially into two parts. The grooves divide the tread into a middle, intermediate and edge regions 6. The middle region has an axial width Lm of at least 30% and at most 60% of the total width W. The total volume void ratio when new is less than 17%, and the middle region has a volume void ratio that is less than half the total volume void ratio. The middle region comprises a plurality of transverse sipes opening into the grooves, and the sipes have depths at least equal to 75% of the depth of the grooves. The number of transverse sipes in the middle region is greater than the number of transverse sipes on each intermediate or edge region.

    HEAVY GOODS VEHICLE DRIVEN AXLE TIRE TREAD
    7.
    发明申请
    HEAVY GOODS VEHICLE DRIVEN AXLE TIRE TREAD 有权
    重型车辆驾驶车轮轮胎

    公开(公告)号：US20150059943A1

    公开(公告)日：2015-03-05

    申请号：US14390403

    申请日：2013-04-05

    Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  MICHELIN RECHERCHE ET TECHNIQUE, S.A.

    Inventor： Robert Ciprian Radulescu ,  Fabien Marlier ,  Benjamin Quantinet ,  Maxime Rolland

    IPC: B60C11/03 ,  B60C11/12

    CPC classification number: B60C11/0323 ,  B60C11/033 ,  B60C11/04 ,  B60C11/12 ,  B60C11/1218 ,  B60C11/1281 ,  B60C2011/0033

    Abstract: Tread having a maximum thickness PMU of material to be worn away during running, having: at least two grooves of circumferential overall orientation delimiting at least one intermediate row and two edge rows, a plurality of cuts of transverse overall orientation on each intermediate and edge row, representing, in the new state, a void of total volume Vco open onto the tread surface, at most equal to 13% of the total volume of the tread, channels or cavities extending under the tread surface in the new state, adapted to form new grooves after the tread has partially worn away, and having, in the initial state, a total volume Vcc at least equal to 30% of the total void volume Vco in the new state, intermediate rows of suffix (i) and edge rows of suffix (e) each provided with a plurality of cuts of transverse or oblique orientation distributed over each row evenly or near-evenly with a mean pitch of Pi and Pe respectively, having mean depths, Di and De respectively, which are at least equal to 20% of the thickness PMU and at most equal to thickness PMU, wherein: on the edge rows, Pe is such that 1.30

    Abstract translation: 具有在运行期间要磨损的材料的最大厚度PMU的胎面具有：限定至少一个中间行和两个边缘排的周向整体取向的至少两个槽，在每个中间和边缘排上具有多个横向整体取向的切口 ，表示在新状态下，在胎面表面上开口的总体积Vco的空隙，至多等于在新状态下在胎面表面下延伸的胎面，通道或空腔的总体积的13％，适于形成 在胎面部分之后的新的凹槽部分磨损，并且在初始状态下，具有至少等于新状态下的总空隙体积Vco的30％的总体积Vcc，后缀（i）的中间行和 后缀（e）分别具有分布在每行上的多个横向或倾斜取向的切口，均匀或近均匀地分别具有Pi和Pe的平均间距，分别具有平均深度Di和De至少为等于 至等于厚度PMU的20％，并且最多等于厚度PMU，其中：在边缘行上，Pe使得1.30

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