Pneumatic tire

Abstract

Provided is a pneumatic tire that is suitable for use as a tire for traveling on unpaved roads and that improves traveling performance on unpaved roads. Center blocks 10, which are provided in a center region of a tread section 1, are arrayed so as to form a pair of center blocks 10 between which there are interposed inclined grooves 30 that extend in an inclined direction with respect to a tire circumferential direction. The center blocks 10 are made to extend so as to straddle a tire equator CL from one side to the other side of the tire equator CL. Notches 11, which are each composed of a first wall 11a and a second wall 11b connected to each other in a V shape, are provided in treads in each center block CL. The first walls 11a are made to extend at an angle within + / -20 degrees with respect to the tire circumferential direction; the second walls 11b are made to extend at an angle of + / -10 degrees with respect to a tire width direction; and third walls 21 that each face a notch 11of a shoulder block 20 provided in a shoulder region of the tread section 1 are made to extend at an angle within + / -5 degrees with respect to a straight line A that connects an end point P1 of the first wall 11a on the shoulder block 20 side and an end point P2 of the second wall 11b on the shoulder block 20 side.

Description

technical field [0001] The present invention relates to a pneumatic tire suitable as a tire for running on unpaved roads, and more specifically, to a pneumatic tire with improved running performance on unpaved roads. Background technique [0002] In the pneumatic tires used for driving on uneven ground, muddy ground, snow track, sandy ground, rocky ground and other unpaved roads, horizontal grooves (Japanese: rag grooves) and blocks with many edge components are generally used. Large tread pattern. In such tires, mud, snow, sand, stones, rocks, etc. (hereinafter, collectively referred to as "mud, etc.") on the road surface are bitten to obtain traction performance, and mud, etc. Running performance on unpaved roads (for example, refer to Patent Document 1). However, even with such tires, it cannot be said that sufficient driving performance on unpaved roads (particularly, traction performance and starting performance) can be obtained, and further improvement is required. ...

AI Technical Summary

Problems solved by technology

However, even with such tires, it cannot be said that sufficient running performance on unpaved roads (particularly, traction performance and starting performance) can be obtained, and further improvement is required.

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