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Run-flat tire

A run-flat tire and tread technology, applied in the reinforcement layer, tire parts, transportation and packaging of pneumatic tires, can solve problems such as poor tire durability, improve driving ability, reduce deformation, and improve durability Effect

Inactive Publication Date: 2018-11-23
GUANGZHOU FENGLI RUBBER TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a run-flat tire, which can effectively solve the problems of poor tire durability under zero air pressure.

Method used

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0023] Please refer to figure 1 , figure 1 It is a schematic cross-sectional structure diagram of a run-flat tire provided by a specific embodiment of the present invention.

[0024] A specific embodiment of the present invention provides a run-flat tire, comprising: a tread l...

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Abstract

The invention discloses a run-flat tire. The run-flat tire comprises a tread layer, a belted layer, a tire body layer and a sidewall layer, wherein the belted layer is arranged at the inner side of the tread layer; the tire body layer is arranged at the inner side of the sidewall layer; one side of the sidewall layer is connected with one side of the tread layer; a sidewall supporting adhesive isarranged at the inner side of the sidewall layer; one end of the tire body layer is located under the belted layer and stretches to the middle part of the tread layer. By regulating the position of the end part of the tire body layer, even the end part of the tire body layer is located under the belted layer and stretches to the middle part of the tread layer, deformation of the tread layer can beeffectively reduced, and a tension force and compression force caused by an unstable phenomenon can be resisted; under the situation that the thickness of the sidewall supporting adhesive is not increased, the durability of the run-flat tire under zero air pressure can be increased, and the running capacity is increased.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a run-flat tire. Background technique [0002] The run-flat tire refers to a tire that can still carry the weight of the car for a certain distance under zero air pressure. [0003] The support rubber of the existing run-flat tires generates strong heat under zero air pressure, and the anti-fatigue performance is weakened to a certain extent when driving, and finally loses the properties of the rubber material and is damaged. Among them, under zero air pressure, the support rubber on the sidewall of the tire is subjected to external elongation force and internal compression force at the same time, so that the instability of the tire tread has a negative effect on the side support rubber. Phenomena that amplify tension and compression, especially if the tension changes externally. [0004] Therefore, how to provide a run-flat tire to increase the fatigue resistance of the support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C17/00B60C9/18
CPCB60C9/18B60C17/00B60C17/0009
Inventor 黄汉尧韩贞花李和荣
Owner GUANGZHOU FENGLI RUBBER TIRE
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