Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2017/208861
Kind Code:
A1
Abstract:
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.
Inventors:
MURATA TAKAHISA (JP)
Application Number:
PCT/JP2017/018887
Publication Date:
December 07, 2017
Filing Date:
May 19, 2017
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/03; B60C11/13
Foreign References:
JP2000219011A | 2000-08-08 | |||
JP2000219012A | 2000-08-08 | |||
JP2000219013A | 2000-08-08 | |||
JPH10278509A | 1998-10-20 | |||
JP2012136187A | 2012-07-19 | |||
JP2009107471A | 2009-05-21 | |||
JP2015223884A | 2015-12-14 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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