| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of more effectively preventing generation of uneven abrasion. SOLUTION: In the pneumatic tire, a pair of circumferential thick grooves in which opening end edges of respective groove wall are extended along a tire circumferential direction in a zig-zag form is arranged on a tread part while clamping a tire equator, and the tread part is divided to a central area and both side areas. At least one circumferential thin groove extending along a tire circumferential direction in a zig-zag form and a plurality of lateral grooves are arranged at the central area, and a land part portion positioned at the central area is divided/formed to the central block land part row of at least two rows comprising a large number of block land parts 4 formed to n-gonal shape (provided that n≥6) in plan view. In the block land part positioned in the central block land part row adjacent to the circumferential thick groove, a side wall angle at the adjacent circumferential thick groove side is made small at both end parts in a tire circumferential direction of the block land part and is made larger than both end parts in the circumferential direction at a central part at an intersection angle formed with a stepping surface of the block land part adjacent to the circumferential thick groove. COPYRIGHT: (C)2011,JPO&INPIT |
