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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/208861
Kind Code:
Provided is a pneumatic tire capable of improving noise performance and wet performance while maintaining steering stability. Disclosed is a pneumatic tire wherein: center blocks 20 and shoulder blocks 21 are partitioned by a circumferential-direction groove 10 extending in the tire circumferential direction, a plurality of inner slanted grooves 11 that communicate with the circumferential-direction groove 10 while slanting in one direction with respect to the tire circumferential direction, and a plurality of outer slanted grooves 12 that communicate with the inner slanted grooves 11 while slanting in another direction with respect to the tire circumferential direction; the pitch of each repeating element consisting of these grooves and blocks changes along the tire circumferential direction; the circumferential-direction groove 10 is constituted by a plurality of wide-width parts 10A and a plurality of narrow-width parts 10B arranged alternately in the tire circumferential direction; the inner slanted grooves 11 communicate with the wide-width parts 10A; and, the smaller the pitch of the repeating element is, the smaller the slanting angle θ formed between the tire circumferential direction and an imaginary line L connecting the respective centers of opening ends of a pair of said inner slanted grooves 11, 11 that is in communication with said wide-width part 10A.

MURATA Takahisa (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
Publication Date:
December 07, 2017
Filing Date:
May 19, 2017
Export Citation:
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THE YOKOHAMA RUBBER CO., LTD. (36-11, Shimbashi 5-chome Minato-k, Tokyo 85, 〒1058685, JP)
International Classes:
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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