Tire capable of improving flat point effect and testing method

A testing method and tire technology, applied to tire components, reinforcement layers of pneumatic tires, transportation and packaging, etc., can solve problems such as difficult to solve the optimal combination of tires, improve tire responsiveness and handling performance, and reduce quality Effects of defects, modulus, and dimensional stability improvement

Pending Publication Date: 2022-03-04
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing shortcomings are that it is difficult to solve the optimal combination of tire structural design and material selection, and how to balance the constraints between tire performance and cost is the focus of consideration

Method used

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  • Tire capable of improving flat point effect and testing method
  • Tire capable of improving flat point effect and testing method
  • Tire capable of improving flat point effect and testing method

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] During the driving process of the vehicle, the tire interacts with the road surface, and the tread contact area continues to wriggle and deform. At the same time, the material of the cap layer will become soft, and it will cool and harden during the parking process of the vehicle, which will cause bumps in the next driving. Tire flat spot effect occurs.

[0028] When designing tires in the present invention, the role of the cap layer is very important. ...

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Abstract

The invention discloses a tire capable of improving flat point effect and a test method, the tire comprises a tread, a tire body, a sidewall and a bead toe, the tread is provided with at least two pattern main grooves, and a pattern center block with a width A is formed; a tire body cord fabric layer, a cord fabric reverse wrapping layer and a cap ply with the width B are arranged between the tire body and the tire tread, the interval of the winding tension of the cap ply is 25 N to 40 N, and the proportion relation of the width A and the width B is that B / A is larger than or equal to 0.85 and smaller than or equal to 0.9. According to the invention, the aramid fiber is used as a cap ply material at the central part of the tread, and the excellent heat-resistant stability and fatigue resistance of the aramid fiber are utilized to cope with the change of high and low temperatures in the use process of the tire, ensure the dimensional stability and prevent the tire from causing larger radial force change, so that the flat point effect of the tire is inhibited.

Description

technical field [0001] The invention relates to the technical field of tire design, in particular to a tire with improved flat spot effect and a testing method. Background technique [0002] When the vehicle is parked for a long time or transported for a long time, it will produce flat spotting, which will cause vibration during the running of the vehicle. The flat spot of the tire is usually caused by the uneven deformation of the tire in the environment of high temperature, low temperature, temperature fluctuation, long-term parking or long-term transportation. Flat spots are therefore a problem associated with tire uniformity, often arising from the uncontrollable extrinsic stimuli described above. [0003] The existing shortcomings are that it is difficult to solve the optimal combination of tire structural design and material selection, and how to balance the constraints between tire performance and cost is the focus of consideration. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/00
CPCB60C9/00B60C9/0028B60C2009/0035
Inventor 高楠虞志伟包振红王磊敬明秋
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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