Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2019/026758
Kind Code:
A1
Abstract:
Provided is a pneumatic tire suitable for traveling on an unpaved road, the pneumatic tire being improved in running performance, abrasion resistance performance and steering stability performance on an unpaved road. In a tread portion 1, on each tread surface of a shoulder block 13s, an intermediate block 13m, and a center block 13c, which are defined by a plurality of longitudinal grooves 11 extending in the tire circumferential direction and a plurality of lateral grooves 12 extending in the tire width direction, a shallow groove 20 having a groove depth smaller than that of the longitudinal groove 11 and the lateral groove 12 is formed. The shallow groove 20 extends along the tire width direction and at least one end thereof is communicated with the longitudinal groove 11 or the lateral groove 12. At least one bending point P is provided on the contour line of the shallow groove 20. A sipe 30 extending along the shallow groove 20 is provided on the flat bottom surface of the shallow groove 20. A terminal end portion T terminating in the center block 13c is provided in the center shallow groove 21, of the shallow groove 20, which is formed in the center block 13c.
Inventors:
HORIUCHI KENJI (JP)
Application Number:
PCT/JP2018/028089
Publication Date:
February 07, 2019
Filing Date:
July 26, 2018
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/12; B60C11/03; B60C11/13
Foreign References:
| JP2011240750A | 2011-12-01 | |||
| JP2016141157A | 2016-08-08 | |||
| JP2017105364A | 2017-06-15 | |||
| JP2017081439A | 2017-05-18 | |||
| JP2016097712A | 2016-05-30 | |||
| JP2006151173A | 2006-06-15 | |||
| JPH01132406A | 1989-05-24 | |||
| JP2015163511A | 2015-09-10 | |||
| JP2014156190A | 2014-08-28 | |||
| JP2014193629A | 2014-10-09 | |||
| JP2001063320A | 2001-03-13 | |||
| JP2012532058A | 2012-12-13 | |||
| JP2009220779A | 2009-10-01 |
Other References:
See also references of EP 3663106A4
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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