A car radial spare tire

Abstract

The invention discloses a car radial spare tire. Two circumferential main grooves are formed in the tire tread of the tire, and three circumferential pattern blocks are formed through partition of the two circumferential main grooves and tire shoulders; oblique straight grooves are formed between the two circumferential main grooves and enable the two circumferential main grooves to communicate with each other, the pattern block in the middle is partitioned into independent parallelogram pattern block bodies by the oblique straight grooves, and a circumferential non-through groove is formed in each of a pair of opposite sides of each parallelogram pattern block body to enable each parallelogram pattern block body to be in an S shape; and folded line grooves are formed in the circumferential pattern blocks formed by the two circumferential main grooves and the two shoulders of the tire, each folded line groove is composed of two straight groove bodies, the straight groove bodies of the adjacent tire shoulders in the folded line grooves are parallel to the axis direction of the tire, angles are formed between the other straight groove bodies in the folded line grooves and the axis direction of the tire, and the folded line grooves communicate with the shoulders of the tire and the adjacent circumferential main grooves correspondingly. The tire tread patterns are simplified, manufacturing cost is reduced, the tire dimension is reduced, the weight is reduced, and road holding of the tire is increased.

Description

technical field [0001] The invention relates to automobile tires, in particular to a car radial spare tire. Background technique [0002] Tires are a common and important part of a car. The pattern design of tires is related to the three important parameters of tire grip, water drainage, and quietness. These three are mutually restraining or even conflicting. Present car generally can be equipped with a spare tire, and the effect of spare tire is to replace the positive tire that breaks down while driving. Spare tires are also divided into full-size spare tires that are the same as regular tires and non-full-size spare tires that are significantly different from regular tires. A non-full-size spare tire refers to a spare tire with a slightly smaller diameter and narrower width than the usual tire. Spare tires do not have the ability to be used by the car for a long time and are only used as temporary replacements. When the vehicle tire fails, replace the faulty tire with ...

AI Technical Summary

Problems solved by technology

Full-size tires are relatively heavy. As a car accessory, they consume more fuel during driving.

And cars are generally equipped with only one spare tire. If a faulty tire is replaced with a brand new full-size spare tire, the left and right tires on the same axle will wear inconsistently, and it is not suitable for long-term use.

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