PNEUMATIC TIRE,申请号JP20070326431-传众专利搜索

PNEUMATIC TIRE

申请公布号：JP2009149124(A)

申请号：JP20070326431

申请日期：2007.12.18

申请公布日期：2009.07.09

申请人：

SUMITOMO RUBBER IND LTD

发明人：IWAI YOSHITAKA

分类号：B60C11/04;B60C5/00;B60C11/03;B60C11/13

主分类号：B60C11/04

摘要：PROBLEM TO BE SOLVED: To improve stability and water drainage during turning without lowering various performances in straight traveling. SOLUTION: A pneumatic tire 1 is provided with a right and left asymmetric tread pattern with the direction of mounting to a vehicle specified. The land ratio of the outer area Ao of a tread part is smaller than that of the inner area Ai thereof. A main wide groove 3 arranged at the tread part 2 includes an outer main wide groove 4 arranged at the outer area Ao and an inner main wide groove 5 arranged at the inner area Ai. The outer main wide groove 4 includes a first outer main wide groove 4a having a groove center line at a position spaced apart from a tire equator C with 5-15% of a tread grounding width TW and a second outer main wide groove 4b having a groove center line at a position spaced apart from the tire equator with 15-28% of the tread grounding width TW. The tire is provided with ribs 7, 8, and 10 continuously extending in a tire circumferential direction without being divided by a lateral groove at both sides of the first outer main wide groove 4a and the second outer main wide groove 4b in a tire axial direction. COPYRIGHT: (C)2009,JPO&INPIT