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US 11,602,913 B2Granted
Method for manufacturing an improved pneumatic tire
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsFrederic Pialot, Thomas Fabre, Pierre Wiel
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Abstract
The method includes the step of forming a carcass from at least one first material based on a thermoplastic elastomer. The method continues with the step of forming, on the carcass, at least bead zone from at least one second material based on a thermoplastic elastomer to form an assembly. The method proceeds with the step of forming, on the assembly an additional part from at least one third material based on a thermoplastic elastomer.
Claims8
A process for manufacturing a tire, comprising the following steps:
- a) forming a carcass from at least one first material based on a thermoplastic elastomer;
- b) forming on the carcass at least one bead zone from at least one second material based on a thermoplastic elastomer;
- and
- c) forming, on the assembly obtained during step b), an additional part from at least one third material based on a thermoplastic elastomer;
- steps a), b), and c) forming a tire which comprises a tread formed during step b) from the at least one second material based on the thermoplastic elastomer;
- and
- wherein step b) includes the following phases;
- b1) manufacturing at least one reinforcing ply,
- b2) injecting, into a bead zone mold, the second material based on the thermoplastic elastomer while overmolding this second material on the at least one reinforcing ply so as to form the at least one bead zone and the tread on the carcass,
- b3) cooling, in the bead zone mold, the assembly obtained during step b2), and
- b4) releasing the assembly obtained during step b2) from the bead zone mold.
8 more elements
Dependencies are inferred from the claim text.