Patent ID: 6039825
Filing Date: 2000-03-21
Classification: B29D

Abstract:
A method of forming a complete tire carcass; the complete carcass comprising an inner carcass and an outer carcass; the inner carcass comprising an annular intermediate portion, two flexible lateral walls, and two annular beads located on either side of said intermediate portion and each connected to a respective said lateral wall; the inner carcass being formed on a forming device comprising collapsible supporting means for supporting said beads and said intermediate portion; the outer carcass being formed in a central toroidal body of a forming mold; and the method comprising the steps of inserting the inner carcass inside said toroidal body by means of said forming device; causing said intermediate portion to adhere to said outer carcass to form said complete carcass; detaching the complete carcass from the forming device by collapsing said collapsible supporting means; and extracting said forming device from said toroidal body; and being characterized by also comprising the further step of clamping said beads in a fixed position with respect to said toroidal body prior to extracting said forming device from the toroidal body.