A run-flat tire

CN122584865APending Publication Date: 2026-08-18王自龙
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Patent Information

Application Number
CN202610920316.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-24
Publication Date
2026-08-18

AI Technical Summary

Technical Problem

[0002]通用车辆充气轮胎在高速行驶时爆胎,车辆会失控,造成严重交通事故,无气轮胎虽不会爆胎,但失去了乘坐舒适性

Benefits of technology

[0003] This patented invention relates to a run-flat tire, which is a multi-layered, nested, airless tire installed inside a pneumatic tire, with a diameter a few centimeters smaller than that of the pneumatic outer tire (this invention uses only two nested layers; the number of layers depends on the wheel diameter). During normal vehicle operation, the pneumatic outer tire supports the vehicle, providing good vibration damping. In the event of a tire blowout, the inner airless tire takes over, stabilizing the vehicle. Since the entire airless tire cannot be fitted inside the pneumatic outer tire, a multi-layered nested structure is used for ease of installation. To ensure a tight fit between the inner and outer layers, a concave-convex structure is used, allowing for a close interlocking fit. During installation, the outermost layer is first installed into the pneumatic outer tire, followed by the innermost layer, until the entire airless tire is inside. Finally, both the airless and pneumatic tires are mounted on the rim. To reduce weight and save materials, the run-flat tire can be perforated around the rim and dynamically balanced. This patented design is simple, easy to manufacture, inexpensive, and readily adopted.

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Abstract

The anti-blowout tire of the present application is a multi-layer structure and is used in the tire with a diameter of several centimeters smaller than the inflated tire. The anti-blowout tire is used to support the vehicle when the inflated tire blows out, so that the vehicle will not lose control. The anti-blowout tire is multi-layer nested for convenient installation. The inner and outer layers are combined with the concave-convex surface structure. The outer layer is installed in the inflated tire, and then the inner layer is installed. The anti-blowout tire and the inflated tire are installed on the vehicle hub.
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Description

Technical Field

[0001] This application pertains to the field of vehicle tire explosion protection, and particularly relates to explosion-proof tires. Background Technology

[0002] When a pneumatic tire on a general-purpose vehicle bursts at high speed, the vehicle loses control, causing serious traffic accidents. While a flat tire won't burst, it sacrifices ride comfort. This patented invention uses a flat tire installed inside a pneumatic tire. When the outer pneumatic tire bursts at high speed, losing support for the vehicle, the flat tire inside directly takes over, providing support and preventing the vehicle from losing control. Summary of the Invention

[0003] This patented invention relates to a run-flat tire, which is a multi-layered, nested, airless tire installed inside a pneumatic tire, with a diameter a few centimeters smaller than that of the pneumatic outer tire (this invention uses only two nested layers; the number of layers depends on the wheel diameter). During normal vehicle operation, the pneumatic outer tire supports the vehicle, providing good vibration damping. In the event of a tire blowout, the inner airless tire takes over, stabilizing the vehicle. Since the entire airless tire cannot be fitted inside the pneumatic outer tire, a multi-layered nested structure is used for ease of installation. To ensure a tight fit between the inner and outer layers, a concave-convex structure is used, allowing for a close interlocking fit. During installation, the outermost layer is first installed into the pneumatic outer tire, followed by the innermost layer, until the entire airless tire is inside. Finally, both the airless and pneumatic tires are mounted on the rim. To reduce weight and save materials, the run-flat tire can be perforated around the rim and dynamically balanced. This patented design is simple, easy to manufacture, inexpensive, and readily adopted. Attached Figure Description

[0004] Figure 1 Internal view of a fully assembled airless tire being fitted with an inflatable outer tire; Figure 2 A view of the fully assembled airless tire; Figure 3 A view of the inner structure of a pneumatic tire with concave grooves on the outer ring; Figure 4 A view of the outer structure of a pneumatic tire with a convex inner ring; Figure 5 This is a schematic diagram of the inner structure of a pneumatic tire. Figure 6 This is a schematic diagram of the outer structure of a pneumatic tire.

Claims

1. This run-flat tire uses a multi-layer nested structure.

2. The mating surfaces of the inner and outer components use a concave-convex structure to ensure a tight interlocking between the inner and outer components.

3. Used inside an inflatable container.

4. The diameter of the explosion-proof inner tube is a few centimeters smaller than the diameter of the inflatable outer tire.