Process for the manufacture of a tire having a carcass reinforcement which is formed of at least one ply of cords or cables
AssigneeCompagnie Generale des Etablissements Michelin - Michelin & Cie
InventorJean Billieres
Life of this patent
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Abstract
A process for the manufacture of a tire which consists of producing a toral carcass reinforcement blank (1) by the helical winding of a cord or cable around a non-deformable, annular building core N, followed by at least one circumferential cut on the radially inner surface of the core N and a cut on the radially outer surface, the two halves of the blank being then separated axially to permit the removal of the core and subsequently brought together and connected for the finishing of the blank of the tire.
Claims11
A process for manufacturing a tire having a carcass reinforcement formed of at least one ply comprising helically winding a cord or cable around a non-deformable, non-disassemblable annular monobloc core having a meridian section the profile of which, in its sidewall and bead portions, is parallel to the meridian profile of the innermost carcass ply as it is in the vulcanization mold for the tire, circumferentially cutting the at least one ply of carcass reinforcement to obtain two blank halves, separating axially the two blank halves by moving apart coaxial metal shells having inner walls with means for grasping, supporting and handling the carcass reinforcement in the region of the sidewalls and which inner walls present a meridian profile of the outermost carcass reinforcement ply, the axial separation permitting removal of the core, and displacing the two blank halves axially towards each other for connection after removal of the core.
Dependencies are inferred from the claim text.