Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1997-07-23
1998-12-22
Knable, Geoffrey L.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156123, 1561303, 1561307, 156133, B29D 3030
Patent
active
058513299
ABSTRACT:
A method and apparatus for manufacturing a tire in which the sidewalls overlap the ends of the tread band. The method comprises the steps of inserting an extensible tubular releasing element around the carcass plies at each end of an assembly drum, wrapping the sidewalls on these elements, applying another tubular element on the sidewalls, and overturning the tubular elements to spread apart the sidewalls in an open position aside of the assembly drum. The carcass, in the form of a first-step cylindrical sleeve comprising open sidewalls, is transferable to a (second-step) forming drum to be torically formed against a separately prepared assembly comprising the belt pack and the tread band. Next, the band ends are turned down onto the toric carcass and the sidewalls are folded back against the carcass and over the ends of the tread band.
REFERENCES:
patent: 4006766 (1977-02-01), Takayanagi et al.
patent: 5087316 (1992-02-01), Sumiuchi et al.
patent: 5380384 (1995-01-01), Tokunaga et al.
patent: 5746860 (1998-05-01), Moriyama
Knable Geoffrey L.
Porta, Checcacci & Botti
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