pneumatic tire

Abstract

In order to achieve noise reduction while maintaining wet performance, in a pneumatic tire (1) with a designated rotation direction, the intersection connecting the lug groove (20) and the circumferential main groove (10) from the inner side in the tire width direction The circumferential main groove (10) of the part (50) is set as the crossing circumferential main groove (11), the lug groove (20) constituting the crossing portion (50) is set as the crossing lug groove (21), and the inner side in the tire width direction is formed by the crossing The pattern block (30) divided by the circumferential main groove (11) is set as a cross pattern block (31), and the cross pattern groove center line (24) which is the center line of the cross pattern groove (21) and the cross pattern block ( In 31), when the intersection point of the edge portion (32) on one side divided by the intersecting circumferential main grooves (11) is set as the center line intersection point (33), from the center line intersection point (33) to the intersection block (31) The distance Lf between the center line of the lug groove (20) on the front side of the tire rotation direction in ) and the lug groove (20) on the rear side of the tire rotation direction dividing the cross block (31) from the intersection point (33) of the center line The relationship between the distance Lb of the center line is in the range of 1.0≤(Lb / Lf)≤1.2.

Description

Technical field [0001] The present invention relates to an inflated tire. Background technique [0002] In the pneumatic tire, a plurality of grooves such as water between the tread surface and the pavement at the time of travel of the wet slip road surface are formed in the tread surface, but on the other hand, the grooves of the tread surface will also become Reasons why no uniform wear, ride comfort is reduced. Therefore, in the conventional pneumatic tire, the decrease in uneven wear is ensured by the shape of the design slot, and the decrease in uneven wear is ensured. [0003] For example, the patent Document 1 describes the groove width of the so-called block pattern, and the LAND RATIO, the point of the tank is balanced, and the direction of the tank is equalized to the surface ratio of the so-called block pattern. Further, the inflatable tire described in Patent Document 2 maintains ride comfort, drainage properties and improves the discharge capacity and improves the di...

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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