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    PNEUMATIC TIRE TREAD HAVING PROTRUDING SHAPE STRUCTURE IN GROOVE
    8.
    发明公开
    PNEUMATIC TIRE TREAD HAVING PROTRUDING SHAPE STRUCTURE IN GROOVE 审中-公开

    公开(公告)号：EP4303037A1

    公开(公告)日：2024-01-10

    申请号：EP23180716.5

    申请日：2023-06-21

    申请人： Kumho Tire Co., Inc.

    发明人： Ahn, Hyoyul

    IPC分类号： B60C11/13 ,  B60C11/03 ,  B60C11/04

    摘要： The present invention relates to a pneumatic tire tread having a protruding shape structure in a groove, and more particularly, to a cross-sectional shape of a groove in a pneumatic tire tread, which is capable of maintaining braking ability on a wet road surface and improving rolling resistance performance even if wear of the tire progresses, by forming the protruding parts in such a way that a width of the groove is partially increased toward an inside from an outside in a radial direction of the tread.
    In a pneumatic tire tread having a protruding shape structure in a groove according to the present invention, the pneumatic tire tread includes a groove structure having grooves formed in a circumferential direction of the tire, and at least one pair of protrusion parts which are formed in an abutting form symmetrical vertically with respect to a central axis of the groove, wherein the protrusion parts provided in the groove are formed in such a way that a distance between lower portions thereof is increased toward an inside in a radial direction of the tread, thus to have the same shape as the groove which does not have the protrusion part as wear thereof progresses.