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Patent Searching and Data


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:
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Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
B60C11/00; B60C3/04; B60C9/18; B60C9/22; B60C11/03; B60C11/13
Domestic Patent References:
JP2007168784A2007-07-05
JP2014101038A2014-06-05
JP2011251604A2011-12-15
JP2016165981A2016-09-15
JP2003291611A2003-10-15
Foreign References:
WO2013042255A12013-03-28
US20110079334A12011-04-07
US20090008011A12009-01-08
WO2014010348A12014-01-16
WO2014057547A12014-04-17
WO2013024516A12013-02-21
WO2011090203A12011-07-28
Attorney, Agent or Firm:
Sakai International Patent Office