Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2017197036
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire that can improve uneven wear resistance performance of the tire by uniformizing wear rate-limiting of a shoulder area and a center area of a tread part.SOLUTION: In a pneumatic tire 1, a belt layer 14 comprises a pair of cross belts 142 and 143 having belt angles with mutually different codes and a circumferential reinforcing layer 145 having a belt angle of 5 [deg] or less in an absolute value. Further, in a cross-sectional view in a tire meridian direction, a foot X of a perpendicular line drawn from an edge part 145e outside in a tire width direction of the circumferential reinforcing layer 145 to a tread profile is positioned at a tread surface of a second land part 32. A grounding area S1 of the shoulder land part 31, a grounding area S2 of the second land part 32 and a grounding area S31 of a center land part 331 adjacent to the second land part 32 satisfy a relational expression: S2
Inventors:
ISHIKAWA MASANORI
Application Number:
JP2016089974A
Publication Date:
November 02, 2017
Filing Date:
April 28, 2016
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
B60C11/00; B60C3/04; B60C9/18; B60C9/22; B60C11/03; B60C11/13
Domestic Patent References:
JP2007168784A | 2007-07-05 | |||
JP2014101038A | 2014-06-05 | |||
JP2011251604A | 2011-12-15 | |||
JP2016165981A | 2016-09-15 | |||
JP2003291611A | 2003-10-15 |
Foreign References:
WO2013042255A1 | 2013-03-28 | |||
US20110079334A1 | 2011-04-07 | |||
US20090008011A1 | 2009-01-08 | |||
WO2014010348A1 | 2014-01-16 | |||
WO2014057547A1 | 2014-04-17 | |||
WO2013024516A1 | 2013-02-21 | |||
WO2011090203A1 | 2011-07-28 |
Attorney, Agent or Firm:
Sakai International Patent Office