Pneumatic tire

Abstract

In a pneumatic tire (1) of which the rotation direction is specified in order to achieve noise reduction while maintaining wet performance, when: a circumferential main groove (10) that forms an intersection section (50) at which a lug groove (20) is connected to the circumferential main groove (10) from the inner side in the tire width direction is defined as an intersection circumferential maingroove (11); the lug groove (20) that forms the intersection section (50) is defined as an intersection lug groove (21); a block (30) demarcated at the inner side thereof in the tire width direction by the intersection circumferential main groove (11) is defined as an intersection block (31); and an intersection point of an intersection lug groove center line (24) which is the center line of the intersection lug groove (21) and an edge section (32) on the side of the intersection block (31) demarcated by the intersection circumferential main groove (11) is defined as a center line intersectionpoint (33), the relationship between the distance Lf from the center line intersection point (33) to the center line of the lug groove (20) that demarcates the front side, in the tire rotation direction, of the intersection block (31), and the distance Lb from the center line intersection point (33) to the center line of the lug groove (20) that demarcates the rear side, in the tire rotation direction, of the intersection block (31), falls within the range of 1.0 <= (Lb / Lf) <= 1.2.

Description

technical field [0001] The present invention relates to a pneumatic tire. Background technique [0002] In a pneumatic tire, a plurality of grooves are formed on the tread surface for the purpose of draining water between the tread surface and the road surface when running on a slippery road, but on the other hand, the grooves on the tread surface also become Causes of uneven wear and reduced ride comfort. Therefore, in conventional pneumatic tires, the reduction of uneven wear and ride comfort are ensured by designing the shape and arrangement of the grooves. [0003] For example, the pneumatic tire described in Patent Document 1 improves drainage performance and wear resistance performance in a balanced manner by specifying the groove width of a so-called block pattern, the land ratio between predetermined regions, and the groove angle. In addition, the pneumatic tire described in Patent Document 2 maintains ride comfort and drainage performance and improves run-flat per...

AI Technical Summary

Problems solved by technology

[0002] In a pneumatic tire, a plurality of grooves are formed on the tread surface for the purpose of draining water between the tread surface and the road surface when driving on a slippery road, but on the other hand, the grooves on the tread surface also become Causes of uneven wear and reduced ride comfort

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