Pneumatic tire

Abstract

Provided is a pneumatic tire which is suitable as a tire for travelling on unpaved roads and which can achieve both high travelling performance on unpaved roads and high cut resistance. Inside blocksand outside blocks which are at different outer-end positions in the tire width direction on the tread surface are arranged alternately in the tire circumferential direction as shoulder blocks in theshoulder area of a tread portion (1). Groove bottom protrusions are arranged within the shoulder grooves between the inside blocks and the outside blocks adjacent to each other in the tire circumferential direction so as to extend beyond the outer-end positions of the inside blocks in the tire width direction from the inside to the outside in the tire width direction along the shoulder grooves. The wide-width portions of the groove bottom protrusions, which are relatively increased in width, are arranged further towards the outside in the tire width direction than the outer ends of the insideblocks in the tire width direction as seen from the front.

Description

technical field [0001] The present invention relates to a pneumatic tire suitable as a tire for running on off-paved roads, and more specifically, to a pneumatic tire capable of achieving a high balance between running performance on off-paved roads and cut resistance. Background technique [0002] Pneumatic tires used for driving on uneven, muddy, snowy, sandy, rocky, and other non-paved roads generally use tires whose tread pattern is mainly composed of horizontal grooves and / or blocks with many edge components. Pneumatic tires with large surface pattern and groove area. In such tires, traction performance is obtained by biting into mud, snow, sand, stones, rocks, etc. (hereinafter, these are collectively referred to as "mud, etc.") The running performance on non-paved roads has been improved (for example, refer to Patent Document 1). [0003] However, in such a tire, there is a problem that, since the groove area is also large in the shoulder portion, stones and / or rock...

AI Technical Summary

Problems solved by technology

[0003] However, in such a tire, there is a problem that, since the groove area is also large in the shoulder portion, stones and / or rocks on the road surface and / or foreign matter tend to enter the groove provided in the shoulder portion, and the bottom of the groove Vulnerable to damage due to this (poor cut resistance)

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