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Patent Searching and Data


Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2018/043581
Kind Code:
A1
Abstract:
Provided is a pneumatic tire in which the steering stability performance on dry road surfaces and the steering stability performance on wet road surfaces can both be improved by modifying the shape of chamfers on sipes. This pneumatic tire in which a tread 1 has a plurality of main grooves 9 extending in the tire circumferential direction, and a rib 10 defined by the main grooves 9 is provided with sipes 11 extending in the tire width direction, the sipes 11 each having a leading edge 11A and a trailing edge 11B. The leading edge 11A and the trailing edge 11B are each formed with a chamfer part 12 that is shorter than the sipe length L of the sipe 11. The sipe 11 has, at portions facing the chamfer parts 12, non-chamfer areas 13 where other chamfer parts do not exist. The rib 10 has intersecting grooves 100 which intersect the sipes 11 and/or the chamfer parts 12.

Inventors:
KOUDA Hiraku (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
SHIRAISHI Takayuki (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
SHINZAWA Tatsuro (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
UEMURA Takanori (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2017/031206
Publication Date:
March 08, 2018
Filing Date:
August 30, 2017
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO., LTD. (36-11, Shimbashi 5-chome Minato-k, Tokyo 85, 〒1058685, JP)
International Classes:
B60C11/12; B60C11/03; B60C11/13
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (37 Kowa Building, 4-5 Tsukiji 1-chome, Chuo-k, Tokyo 45, 〒1040045, JP)
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