Cross-country tire tread pattern structure

Abstract

The invention discloses a cross-country tire tread pattern structure. A plurality of pattern units are distributed on a tire tread, each of pattern units comprises central pattern block groups which are distributed along a tire circumferentially and tire shoulder pattern block groups which are distributed along the tire circumferentially, a long tire shoulder pattern block and a short tire shoulder pattern block are distributed on a shoulder portion at intervals circumferentially, all central pattern blocks and all tire shoulder pattern blocks are connected through reinforcing ribs to form a Z-shaped pattern frame, recessed ribs are arranged on recessed portions of all tire shoulder patterns transversely, two sides of the circumferential direction of tire shoulder pattern blocks are designed to a stair shape, and an upper end face and a lower end face are overlapped to form an external end face. The traction of the tie is improved, functions such as drain, mud discharging and falling resistance are guaranteed, and the quick turn performance of tires in a track race is improved greatly.

Description

technical field [0001] The invention relates to an off-road racing tire, in particular to a tread pattern structure of an off-road racing tire. Background technique [0002] Today's auto cross-country races can be divided into field car races and rally car races according to road conditions. Field car races are one-way short-distance obstacle races. The traction performance and fast cornering sprint performance, while the rally car track is divided into short-distance and long-distance. Especially for track tires, the overall road surface is relatively soft and has high requirements for instantaneous acceleration. Under the premise of improving its traction as much as possible, it must not only have good tire coverage and drainage and mud discharge, but also need to ensure The quick cornering performance of the tire. Generally speaking, in terms of traction, water drainage, mud discharge and anti-block performance, it is necessary to grasp their balance points when designi...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing off-road tires are relatively neutral in performance. According to the feedback of the drivers, the currently used off-road tires are prone to insufficient cornering acceleration in track racing, and are also prone to blockage in rally racing.

For track tires, the land ratio of the center part of the pattern is often designed to be too high, and this design is likely to affect the water drainage and mud discharge performance of the pattern, and it is easy to reduce the coverage of the tread on soft roads, and even the tire is easy to run when running fast. Skidding occurs, and the contour of the tire shoulder is often designed to be flat. Since the shoulder is the main part that provides the driving force when the tire is cornering, the flat design makes the tire have no special advantage when turning quickly. The enhancement is not obvious

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