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热词
    • 97. 发明授权
    • Pneumatic tire
    • US10377186B2
    • 2019-08-13
    • US15534463
    • 2015-08-31
    • The Yokohama Rubber Co., LTD.
    • Kenichi Matsumoto
    • B60C11/14B60C11/16
    • A stud pin includes a buried base portion embedded in a tread portion of a pneumatic tire and a tip portion protruding from the road contact surface of the tread portion when the buried base portion is embedded in the tread portion. A tip surface of the tip portion includes: a first protrusion portion and a second protrusion portion longer in the tire width direction than in the tire circumferential direction and protruding toward one side in the tire circumferential direction; a first recessed portion disposed between the first and second protrusion portions and recessed toward the other side in the tire circumferential direction; a third protrusion portion and a fourth protrusion portion protruding toward the other side in the tire circumferential direction; and a second recessed portion disposed between the third and fourth protrusion portions and recessed toward the one side in the tire circumferential direction.