Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2017121906
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire which suppresses uneven wear and has excellent durability.SOLUTION: In a pneumatic tire 2, in a normal internal pressure condition, a center region between one base point Pr on a tread surface and the other base point Pr in a shaft direction has a width Wr, and a third layer 46 is formed in a shape which protrudes inward in a radial direction at a curvature radius R. When an interval between a center line L1 of a main groove 26 and a center line L2 of a main groove 28 is designated as Dg, the base point Pr is positioned further outside in the shaft direction from the center line L1 of the main groove 26 by more than one-half of the interval Dg. The base point Pr is positioned inward in the shaft direction from the center L2 of the main groove 28 to be closer to inside by more than 7 mm. The curvature radius R is set to be 670 mm or more and 900 mm or less.SELECTED DRAWING: Figure 2
Inventors:
TSUDA SATOSHI
Application Number:
JP2016002512A
Publication Date:
July 13, 2017
Filing Date:
January 08, 2016
Export Citation:
Assignee:
SUMITOMO RUBBER IND
International Classes:
B60C11/00; B60C3/04; B60C9/18; B60C9/20
Attorney, Agent or Firm:
Kengo Oka
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao