Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2017/018019
Kind Code:
A1
Abstract:
Provided is a pneumatic tire 1 that improves wear resistance performance while maintaining braking performance on wet road surfaces, that comprises four main grooves 22 extending along the tire circumferential direction on the tread surface 21 of a tread section 2, and in which the following are formed by the main grooves 22: a center ridge section 23A; middle ridge sections 23B adjacent to the center ridge section 23A on both sides thereof in the tire width direction; and shoulder ridge sections 23C adjacent to the middle ridge sections 23B on the outer side thereof in the tire width direction. Each of the grooves 22 is formed in a wave shape having a periodic amplitude. A plurality of lug grooves 25 arranged in the tire circumferential direction so as to intersect the tire circumferential direction are provided to each of the ridge sections 23. Each of the lug sections 25 is positioned on a curved line CU that spans the ridge sections 23 and smoothly connects both outer edges of the tread section 2 in the tire width direction.
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Inventors:
KURIYAMA MASATOSHI (JP)
Application Number:
PCT/JP2016/064002
Publication Date:
February 02, 2017
Filing Date:
May 11, 2016
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/03; B60C5/00; B60C11/12
Domestic Patent References:
| WO2015012160A1 | 2015-01-29 |
Foreign References:
| JP2013220780A | 2013-10-28 | |||
| JP2012218652A | 2012-11-12 | |||
| JP2013147141A | 2013-08-01 | |||
| JP2009096398A | 2009-05-07 | |||
| JP2004203322A | 2004-07-22 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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