Airless tires

Abstract

The invention provides a non-pneumatic tire and belongs to the field of rubber tires. The structure is stable, the weight is light, pressure resistance is good and grounding performance and control and stability performance are more excellent. The non-pneumatic tire sequentially comprises a rubber tread (1), base part rubber (2) and an elastic supporting body (3) from outside to inside in the radial direction of the tire. The base part rubber (2) is vulcanized with the rubber tread (1) to be a whole, and the elastic supporting body (3) takes the supporting effect on the rubber tread (1). The elastic supporting body (3) comprises an inner pressure-bearing ring (6) making contact with a wheel rim, an outer pressure-bearing ring (4) attached to the base part rubber (2) and middle supporting bodies (5) located between the inner pressure-bearing ring (6) and the outer pressure-bearing ring (4). The middle supporting bodies (5) comprise the first supporting bodies (51) and the second supporting bodies (52) which are evenly distributed in the circumferential direction, wherein the second supporting bodies (52) comprise multiple layers of negative Poisson ratio unit layers, and each negative Poisson ratio unit layer is formed by the even distribution of a plurality of negative Poisson ratio units in the circumferential direction.

Description

technical field [0001] The invention relates to the field of tires, in particular to a non-pneumatic tire. Background technique [0002] The widely used tires with tubes and tubeless tires are pneumatic tires. The principle is to inject compressed air into the inner cavity of the tire to load the tire. The biggest safety hazard is that once the tire is punctured or scratched by a sharp object, It is very easy to have air leakage, or even a tire blowout, resulting in a safety accident. Therefore, based on the comprehensive consideration of tire comfort and safety, non-pneumatic tires have become the mainstream trend and are widely valued by consumers and tire manufacturers. [0003] CN104999862A discloses a non-inflatable safety tire, which consists of a tread, an outer ring, a support body and an inner ring from the inside to the outside, the tread is bonded or vulcanized on the outer ring, and the support body starts from the outer ring, Arranged between the outer ring an...

AI Technical Summary

Problems solved by technology

However, the V-shaped structure is prepared by spot welding, riveting, bonding, binding or other methods. The preparation method is cumbersome and the connection method is complicated; and the upper and lower V-shaped structure supports and the joints of the tendons are easy to achieve stress concentration, which is not conducive to Force transmission, easy to achieve early damage during use

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