Title:
METHOD AND APPARATUS FOR MOULDING AND CURING A TYRE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO2003092988
Kind Code:
A8
Abstract:
It is disclosed a method and an apparatus for moulding and curing a tyre for vehicle wheels, said method comprising the steps of : building a green tyre on a toroidal support (10) having an outer surface the shape of which substantially matches that of an inter surface of said green tyre; placing said green tyre carried by said toroidal support (10) into a moulding cavity (104) defined in a vulcanization mould (102), said moulding cavity (104) having walls conforming in shape to an outer surface of said tyre when vulcanization has been completed; pressing an outer surface of said green tyre against the walls of said moulding cavity (104) by means of a working fluid under pressure flowing in at least one diffusion gap between said outer surface of said toroidal support (10) and said inner surface of said green tyre; heating said working fluid under pressure so as to supply heat to said green tyre in order to enable vulcanization of same, wherein said working fluid under pressure in contact with said green tyre is submitted to circulation.
Inventors:
CARETTA RENATO (IT)
MARCHINI MAURIZIO (IT)
MARCHINI MAURIZIO (IT)
Application Number:
PCT/IB2002/001432
Publication Date:
February 12, 2004
Filing Date:
April 29, 2002
Export Citation:
Assignee:
PIRELLI (IT)
CARETTA RENATO (IT)
MARCHINI MAURIZIO (IT)
CARETTA RENATO (IT)
MARCHINI MAURIZIO (IT)
International Classes:
B29C35/00; B29D30/06; B29C35/04; (IPC1-7): B29D30/06; B29C35/00
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