Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2019/188804
Kind Code:
A1
Abstract:
The present invention provides a pneumatic tire in which snow performance is improved while the occurrence of pattern noise is suppressed. A center land part (10A), intermediate land parts (10B), and shoulder land parts (10C) are each provided with a plurality of sipes (11, 12, 13) arranged at intervals in the circumferential direction of the tire. The sipes (11) each have, at one end thereof, a large-width section (14), which is formed to have a large groove width. The sipes (13) extend from outside a grounding end (E), in the width direction of the tire, toward outer main grooves (9B). The directions in which the sipes (11, 13) extend, with respect to the circumferential direction of the tire, are opposite to the direction in which the sipes (12) extend. The inclination angle θCE of the sipes (11), the inclination angle θMD of the sipes (12), and the inclination angle θSH of the sipes (13) satisfy the relationship θCE <θMD <θSH <90°. Ends (12a) of the sipes (12) adjacent to inner main grooves (9A) are located between ends (11a) of the sipes (11). At least the sipes (11) or the sipes (12) are located on the meridian of the tire at any position on the entire circumference of the tire.
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Inventors:
WATANABE DAISUKE (JP)
Application Number:
PCT/JP2019/012135
Publication Date:
October 03, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/03; B60C11/12
Foreign References:
| JP2012056464A | 2012-03-22 | |||
| JP2013018309A | 2013-01-31 | |||
| JPS60255506A | 1985-12-17 | |||
| JP2004314787A | 2004-11-11 | |||
| JP2012086665A | 2012-05-10 | |||
| JP2010168006A | 2010-08-05 | |||
| JP2017196978A | 2017-11-02 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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