Winter tire of truck and passenger car

Abstract

The invention discloses a winter tire of a truck and a passenger car, comprising a tire body, wherein the tire body is provided with a tread annular fringe block and the tread annular fringe block is provided with a bulge; the tread annular fringe block comprises a first fine decorative pattern, a middle fine decorative pattern and a second fine decorative pattern, which are in an integral structure; an included angle alpha between the first fine decorative pattern and the middle fine decorative pattern is 120-140 degrees; and an included angle beta between the second fine decorative pattern and the middle fine decorative pattern is 120-140 degrees. According to the winter tire, the tread annular fringe block is provided with the bulges, and the tread annular fringe block comprises the first fine decorative pattern, the middle fine decorative pattern and the second fine decorative pattern which are in the integral structure; and the tread annular fringe block presents a double-bent structure, so that the structure can make an occlusal force of a vehicle tire on a road surface greater and enhance a vertical rigidity of a driving surface of the vehicle tire; and the winter tire is good for working on the road surface in winter.

Description

technical field [0001] The invention relates to a passenger car tire, in particular to a tire with stable maneuverability when running on a dry road surface. Background technique [0002] Winter tires refer to a special type of tires used in winter snow and ordinary dry roads. It is required that the tires can not only ensure the safety of braking on snowy roads, but also have good handling stability on dry roads. Early winter tires used a stud structure, such as patent CN200920053014.4, which can effectively provide grip on snow, but the metal studs on the tread will greatly damage the dry road surface. In the late winter tires, the way of changing the block structure to provide snow grip, such as patent CN200810183899.X and patent CN200410087180.8, increases the friction between the tire tread and the road surface by adding a two-dimensional zigzag sipe structure. However, this structure only has a relatively strong locking stiffness structure in the lateral direction of ...

AI Technical Summary

Problems solved by technology

In the late winter tires, the way of changing the block structure to provide snow grip, such as patent CN200810183899.X and patent CN200410087180.8, increases the friction between the tire tread and the road surface by adding a two-dimensional zigzag sipe structure. However, this structure only has a relatively strong locking stiffness structure in the lateral direction of the running surface, while the pattern blocks cut in the direction perpendicular to the running surface do not have an engaging structure with low rigidity, thus affecting the high-speed performance of the tire on dry roads. ride stability

Images