Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2013/136947
Kind Code:
A1
Abstract:
In this pneumatic tire (1), land sections (31-34) respectively have a plurality of sizes (312-342), and at least one column of land sections (33, 34) in an inner region is provided with sipes (332, 342) having a 3D structure. Also, the snow traction index (STI) in the tire peripheral direction at the entire tread section is in the range of 100 ≤ STI. Also, the sipe component (STI_s_out) of the snow traction index at an outer region and the sipe component (STI_s_in) of the snow traction index (STI) at the inner region have the relationship 1.1 ≤ STI_s_in/STI_s_out. Also, the peripheral length ratio (PLR_out) of the 3D structure at the outer region and the peripheral length ratio (PLR_in) of the 3D structure at the inner region have the relationship 1.1 ≤ PLR_in/PLR_out.
Inventors:
MATSUSHITA KOHTARO (JP)
Application Number:
PCT/JP2013/054586
Publication Date:
September 19, 2013
Filing Date:
February 22, 2013
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/12; B60C5/00; B60C11/04
Foreign References:
| JP2006192929A | 2006-07-27 | |||
| JPH02133205A | 1990-05-22 | |||
| JP2008132810A | 2008-06-12 | |||
| JP2005162197A | 2005-06-23 | |||
| JPH05112104A | 1993-05-07 | |||
| JPH0485113A | 1992-03-18 | |||
| JP2012218633A | 2012-11-12 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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