A puncture-resistant solid polyurethane tire

By employing a multi-layer high-performance material structure in polyurethane solid tires, the problem of tires being easily punctured by sharp objects has been solved, achieving effective puncture prevention and self-repair functions, and improving the overall performance and safety of the tires.

CN224510762UActive Publication Date: 2026-07-17JIANGSU GIANTPOWER RUBBER & PLASTIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU GIANTPOWER RUBBER & PLASTIC TECH CO LTD
Filing Date
2025-10-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing polyurethane solid tires have limited puncture resistance and are easily punctured by sharp objects, resulting in irreversible damage. They also lack an effective puncture and leak protection mechanism.

Method used

It adopts a multi-layer structure design consisting of a puncture-resistant reinforcement layer, a self-sealing polyurethane protective layer, a belt layer, a crown belt layer, a sidewall reinforcement layer, and a fabric layer. High-performance materials such as aramid fiber woven fabric, microencapsulated self-healing polyurethane, carbon fiber, glass fiber, and ceramic-coated polyurethane foam are used to enhance the tire's puncture resistance and self-healing ability.

Benefits of technology

It improves the tire's puncture resistance, can quickly seal wounds to prevent gas or liquid leakage, enhances tire rigidity and load-bearing capacity, ensures high-speed driving stability, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of tire technology and discloses a puncture-resistant solid polyurethane tire, comprising a polyurethane tire body, an anti-puncture reinforcement layer on the inner wall surface of the polyurethane tire body, a self-sealing polyurethane protective layer on the inner wall surface of the anti-puncture reinforcement layer, and a belt layer on the inner wall surface of the self-sealing polyurethane protective layer. In this puncture-resistant solid polyurethane tire, the anti-puncture reinforcement layer is woven from high-strength fiber material, effectively resisting punctures from sharp objects and improving the overall puncture resistance of the tire. The self-sealing polyurethane protective layer has excellent self-healing capabilities; when the tire is punctured, this protective layer can quickly seal the wound to prevent gas or liquid leakage. The belt layer is composed of multiple layers of high-modulus material, which enhances the rigidity and load-bearing capacity of the tire. The crown belt layer further enhances the crown strength of the tire, ensuring the stability of the tire at high speeds.
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