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63 条记录 (耗时 0.022 秒)

    Pneumatic tire
    43.
    发明授权
    Pneumatic tire 有权

    公开(公告)号：US10300746B2

    公开(公告)日：2019-05-28

    申请号：US15520805

    申请日：2015-10-05

    申请人： The Yokohama Rubber Co., LTD.

    发明人： Toshiyuki Sato ,  Shoei Kakuta ,  Hideki Hamanaka ,  Yukihito Yamaguchi ,  Risa Tauchi

    IPC分类号： B60C11/11 ,  B60C11/13 ,  B60C11/03

    摘要： A pneumatic tire includes center lug grooves disposed at intervals in a tire circumferential direction that extend crossing a tire equator line and include a first groove turning portion and a second groove turning portion; shoulder lug grooves disposed in the intervals between the center lug grooves in the tire circumferential direction extending outward in the tire width direction, an inner end in the tire width direction being disposed outward of an end of the center lug groove in the tire width direction; a pair of circumferential main grooves to which the ends of the center lug grooves and the inner ends of the shoulder lug grooves in the tire width direction alternately connect; and a circumferential secondary groove disposed around the entire circumference of the pneumatic tire that intersects the center lug grooves between the first groove turning portion and the second groove turning portion.

    Heavy duty pneumatic tire
    44.
    发明授权
    Heavy duty pneumatic tire 有权

    公开(公告)号：US09987885B2

    公开(公告)日：2018-06-05

    申请号：US15328440

    申请日：2015-07-23

    申请人： The Yokohama Rubber Co., LTD.

    发明人： Risa Tauchi ,  Shoei Kakuta ,  Hideki Hamanaka ,  Yukihito Yamaguchi ,  Toshiyuki Sato

    IPC分类号： B60C11/11 ,  B60C11/13 ,  B60C11/03 ,  B60C11/00

    CPC分类号： B60C11/13 ,  B60C11/00 ,  B60C11/03 ,  B60C11/0304 ,  B60C11/0309 ,  B60C11/11 ,  B60C2011/0025 ,  B60C2011/0346 ,  B60C2011/0348 ,  B60C2011/0351 ,  B60C2011/0353 ,  B60C2011/0355 ,  B60C2011/0365 ,  B60C2011/1361 ,  B60C2200/065

    摘要： A pneumatic tire with improved heat build-up resistance in a land portion in a tread center region. The pneumatic tire is provided with a tread pattern that includes a plurality of center lug grooves (14) disposed at intervals in a tire circumferential direction that cross a tire equator line; a plurality of shoulder lug grooves (12A, 12B) disposed in intervals between the plurality of center lug grooves in the tire circumferential direction extending outward in the tire width direction, an inner end in the tire width direction being disposed outward of an end of the center lug groove in the tire width direction; a pair of circumferential primary grooves (11A, 11B) extending around an entire circumference of the pneumatic tire in a wave-like shape with the ends of the center lug grooves and the inner ends of the plurality of shoulder lug grooves in the tire width direction alternately connecting to the pair of circumferential primary grooves (11A, 11B); and a circumferential secondary groove (10) disposed on the tire equator line around the entire circumference of the pneumatic tire that intersects the center lug grooves. A straight line that joins an intersection portion between the center lug groove and the circumferential secondary groove and the end of the center lug groove has an inclination angle with respect to the tire circumferential direction ranging from 55° to 75°.

    Pneumatic Tire
    49.
    发明申请
    Pneumatic Tire 审中-公开

    公开(公告)号：US20200376895A1

    公开(公告)日：2020-12-03

    申请号：US16619919

    申请日：2018-04-10

    申请人： The Yokohama Rubber Co., LTD.

    发明人： Hideki Hamanaka

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

    摘要： A pneumatic tire includes: a rib defined by a circumferential main groove; circumferential sipes formed in the rib at intervals in the circumferential direction; rib edge sipes formed in the rib aligning in the circumferential direction, each of the rib edge sipes terminating in the rib opening to the circumferential main groove; and first and second narrow grooves extending in the circumferential direction, each of the first and second narrow grooves having a groove depth shallower than depths of the circumferential sipes and the rib edge sipes, the first narrow grooves having ends connected to one of the circumferential sipes adjacent to each other in the circumferential direction and the second narrow grooves each including an inner connecting portion connected to one of the first narrow shallow grooves and including an outer connecting portion connected to one of the rib edge sipes.