Tread block structure of pneumatic tire

Abstract

Tread block structure (10) of a pneumatic tire including at least one tread cone (20) having different physical properties from the outer surface toward the inner surface. According to various exemplary embodiments, the tread cones with different properties existing in the tread block may control the rigidity of the tread block without the trade-off on other tread performance, and thus the tread block structure and a pneumatic tire comprising the same exhibit an improved balance between traction, cornering performance, and abrasion resistance.

Description

technical field [0001] An exemplary embodiment of the present invention relates to a tread block structure of a pneumatic tire, and more particularly, to a tread block structure of a pneumatic tire capable of controlling the block by forming at least one tread cone using a rubber material. The stiffness of the rubber material has different physical properties from the outer to the inner surface of the tread block. Background technique [0002] A pneumatic tire generally includes an inner liner constituting the inside of the tire, a carcass layer laminated on the outer periphery of the inner liner, a belt layer laminated on the outer periphery of the carcass layer, and a belt layer laminated on the outer periphery of the belt layer. The tread on the periphery and substantially in contact with the ground, the sidewalls that make up the sides of the tire, and the beads attached to the sides of the wheel to maintain air pressure. [0003] Among them, said tread is made of thick...

AI Technical Summary

Problems solved by technology

Although wear resistance is increased when high grip depths are applied, the stiffness of the tread blocks is reduced, resulting in a lower tendency to compromise performance in traction and cornering

Therefore, according to the structure of the conventional thread block, there is a fundamental limit to the realization technique of improving the performance of the tire while satisfying different performance standards by controlling the stiffness of the tread block.

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