Pneumatics comprising at least two shrink-wrapped layers with reduced porosity surface
The tire's innovative shrink-fit layers with reduced porosity reinforcement elements address manufacturing rigidity and oxidation issues, improving durability and performance by using torsionally balanced multifilament strands.
FR3169777A1Pending Publication Date: 2026-06-19MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-19
Smart Images
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Abstract
The invention relates to a tire (10) comprising a crown reinforcement (14) comprising a shrink-fit reinforcement (17) comprising at least two shrink-fit layers (19; 19'), each shrink-fit layer comprising at least several shrink-fit reinforcement elements wherein: - each shrink-fit reinforcement element comprises several multifilament strands and - the porosity area of each strand of shrink-fit reinforcement element is less than or equal to 100,000 µm², with the calculation of the porosity area being performed using a measuring device capable of measuring geometries on scanned and calibrated images using optics and lighting systems that reveal the porosity area of the reinforcement element. Figure for the abstract: Fig. 1
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