A method and system for optimizing tire structure design and production process to improve tire side bulge

By using a structure-process co-optimization method that combines quantification of indentation volume and segmented thickness compensation, the problems of mean and dispersion of sidewall indentations in radial tires were solved, resulting in significant improvement and consistency enhancement of sidewall appearance.

CN122185771APending Publication Date: 2026-06-12ZHONGCE RUBBER GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGCE RUBBER GRP CO LTD
Filing Date
2026-03-13
Publication Date
2026-06-12

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Abstract

The present application relates to the technical field of tire structure design, and more particularly to a method and system for optimizing tire structure design and production process to improve tire side indentation. The method establishes a quantitative model of the tire side indentation under the rated inflation condition with the joint position as the reference, calculates the sensitivity of each axial section using thickness disturbance, generates at least three levels of segmented thickness compensation according to the sensitivity ranking, determines the compensation area, matches the tire width and profile transition, and compensates the structure through the circumferential alignment assembly, the setting pressure, time and temperature window curing. After implementation, the mean value of the tire side indentation is significantly reduced, the variance converges, and the pass rate is greatly improved. The scheme does not require the addition of expensive equipment and is suitable for mass production and promotion.
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Citation Information

Patent Citations

  • Radial tyre comprising carcass with notched lap weld

    CN1072568C

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    EP0120623A2

  • Method for preventing side wall indentations in a splice region of the tire carcass

    US4810317A