Compagnie Generale des Etablissements Michelin has been granted a patent for a motor vehicle tire featuring two beads, sidewalls, and a crown. The tire includes a carcass reinforcement with specific orientations of reinforcing elements and a stiffening reinforcement in the sidewall, enhancing structural integrity and performance. GlobalData’s report on Compagnie Generale des Etablissements Michelin gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Compagnie Generale des Etablissements Michelin, Anti-skid tyre treads was a key innovation area identified from patents. Compagnie Generale des Etablissements Michelin's grant share as of June 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Tire design with reinforced sidewalls and carcass structure
The patent US12043066B2 describes a motor vehicle tire designed to enhance performance and structural integrity. The tire features two beads that contact a mounting rim, each equipped with an annular reinforcing structure. These structures are complemented by sidewalls that extend radially outward to a crown, which includes a crown reinforcement with at least one ply of crown reinforcing elements, topped by a tread. A carcass reinforcement runs from the beads through the sidewalls to the crown, anchored by a turn-up around the annular reinforcing structure. This design creates a main strand and a turn-up strand in each bead. Additionally, a stiffening reinforcement is integrated into at least one sidewall, comprising multiple stiffening elements oriented at a minimal angle relative to the tire's circumferential direction.
The claims further specify that the turn-up strand extends radially outward to a defined distance, which is a percentage of the tire's radial height. The carcass reinforcement includes crossed reinforcing elements oriented between 70° and 80° and non-crossed elements at approximately 90°. The arrangement of these elements is critical, as the crossed elements form part of both the main and turn-up strands, with specific orientation requirements to optimize performance. The stiffening reinforcement can be positioned in various configurations relative to the main and turn-up strands, and its elements may be embedded in a rubber composition with a defined modulus. This innovative tire design aims to improve durability and handling characteristics, addressing the needs of modern motor vehicles.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
