Trench wall structure of pneumatic tire tread pattern

Abstract

The invention discloses a groove wall structure of a tread pattern of a pneumatic tire. The tire tread is composed of a plurality of pattern block groups, and each pattern block group includes a central pattern block and shoulder pattern blocks located on both sides of the central pattern block. Pattern grooves are formed between the pattern blocks, wherein the two side walls of each pattern groove are provided with stepped three-dimensional groove walls along the groove length direction, and the three-dimensional groove walls on the two side walls are arranged oppositely. The present invention ensures the wet performance of the tire by providing pattern grooves on the tire tread, and the two side walls of the pattern grooves are provided with stepped three-dimensional groove walls along the groove length direction, and the steps of the three-dimensional groove walls on the two side walls The shape is set in the opposite direction, which increases the edge effect of the groove wall of the pattern block and further improves the grip of the tire; while the "ladder shape" formed by the multi-level three-dimensional groove wall extending from the tire tread to the bottom of the groove, wears out with the use of the tire. The pattern block area also increases accordingly, which increases the rigidity of the pattern block and further improves the wear resistance of the tire in the later period of use.

Description

technical field [0001] The invention relates to a pneumatic tire, in particular to a groove wall structure of a tread pattern of a pneumatic tire. Background technique [0002] In recent years, automobiles have gradually become people's main means of travel, and their performance requirements for matching tires have also increased. Among the various road surfaces for driving, there are flat roads, gravel roads, muddy roads, ice and snow roads, etc., especially when encountering muddy roads or ice and snow roads, due to insufficient grip of the tread pattern during driving, It is often prone to slipping, and in order to solve the above problems, it is usually designed to increase the groove width or increase the number of grooves. Although this design can improve the grip and drainage and mud discharge performance of the tire, it is easy to reduce the overall tread block. Rigidity produces local abnormal wear, causing early damage to the tire and affecting the service life o...

AI Technical Summary

Problems solved by technology

Among the various road surfaces for driving, there are flat roads, gravel roads, muddy roads, ice and snow roads, etc., especially when encountering muddy roads or ice and snow roads, due to insufficient grip of the tread pattern during driving, It is often prone to slipping, and in order to solve the above problems, it is usually designed to increase the groove width or increase the number of grooves. Although this design can improve the grip and drainage and mud discharge performance of the tire, it is easy to reduce the overall tread block. Rigidity, resulting in local abnormal wear, causing early damage to the tire and affecting the service life of the tire

In addition, the tread block area is reduced, resulting in the failure to guarantee the wear performance of the tread

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