Manufacture of pneumatic tyres

Details Manufacture of pneumatic tyres Manufacture of pneumatic tyres

B - Operations, Transporting

29

D

18/125, 18/172

B29D 30/52 (2006.01) B29D 30/06 (2006.01) B29D 30/08 (2006.01)

Patent

CA 1059275

ABSTRACT OF THE DISCLOSURE A method for the manufacture of a pneumatic tyre comprising initially moulding the tread portion of the tyre from uncured rubber in an annular mould cavity the radially inner surface of the cavity being the surface of a mould core of cured rubber, the mould core having substantially the shape of the interior of the tyre to be moulded, and being supported during moulding of the tread by rigid side plates which engage the sidewall moulding surface of the core, removing said side plates after moulding said tread, replacing them by mould halves defining sidewall moulding cavities against the sidewall moulding surface of the core and forcing uncured rubber into the sidewall moulding- cavities to mould said sidewalls onto the tread.

227049

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