Pneumatic tire

Abstract

Provided is a pneumatic tire that makes it possible to improve abrasion resistance performance and wet performance as well as improve tire appearance in a later period of wear. The distances GL1-GL4 from first to third main grooves 11, 12, 13 and a narrow groove 14 to a tire equator CL are configured to be 5-20%, 20-35%, 55-70%, and 40-60% of a tire ground contact half width TL / 2, respectively. The invention is provided with: a first lug groove 31 having one end that reaches a vehicle inner-side ground contact end E and another end that is closed inside a first rib 21; a second lug groove 32 having one end that is connected to the third main groove 13 and another end that is closed inside a second rib 22; a third lug groove 33 having one end that is connected to the second main groove 12 and another end that is closed inside a third rib 23; a fourth lug groove 34 having one end that is connected to the first main groove 11 and another end that is closed inside a fourth rib 24; a fifth lug groove 35 that intersects with the narrow groove 14 and has ends that are closed inside the fourth rib 24 and a fifth rib 25; and a sixth lug groove 36 having one end that reaches a vehicle outer-side ground contact end E and another end that is closed inside the fifth rib 25.

Description

technical field [0001] The present invention relates to a pneumatic tire, and more specifically relates to a pneumatic tire capable of balancing wet performance, dry performance, uneven wear resistance and noise performance in a high-dimensional and balanced manner. Background technique [0002] Conventionally, in pneumatic tires, high-dimensional and well-balanced improvement of dry performance (e.g., driving stability on dry roads, travel time) and wet performance (e.g., driving stability on wet roads, water skid resistance) has been required. . Furthermore, in addition to these performances, it is also required to simultaneously improve tire wear (particularly partial wear) and noise (for example, passing noise). [0003] For example, as a method of improving wet performance among these performances, a method of arranging a plurality of grooves in the tread portion of a pneumatic tire to improve drainage is known. However, if the grooves are simply added, the tread rigi...

AI Technical Summary

Problems solved by technology

[0005] However, in recent years, due to the impact of the high performance of vehicles and the continuous development of road repairs, the demand for high vehicle speeds has gradually increased. Accordingly, in the conventional tread pattern structure, especially when driving at high speeds, it began to be difficult. Taking these properties into account in a high-dimensional way

In addition, even in a severe driving environment such as loop driving, it is necessary to balance these performances in a high-dimensional manner, so the conventional tread pattern structure cannot sufficiently ensure these performances.

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