B29D2030/3221 - CPC Classification

Producing pneumatic or solid tyres or parts thereof; Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting); Building tyres by the flat-tyre method, i.e. building on cylindrical drums; Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores Folding over means, e.g. bladders or rigid arms

• B29D2030/3228 » {using one bladder acting on each side of the drum} 20
• B29D2030/3235 » {using two or more bladders acting on each side of the drum} 8
• B29D2030/3242 » {and with means for pressing the bladder against the ply material, e.g. bladder guide shoes, cages, arms} 7
• B29D2030/3257 » {using pressing rollers} 16
• B29D2030/3264 » {using radially expandable, contractible mechanical means, e.g. circumferentially spaced arms, spring rollers, cages} 44
• B29D2030/3271 » {using air blasts} 0
• B29D2030/3278 » {Folding down the ends of the tubular tyre component, e.g. the carcass, over the drum shoulders} 9

Recent Application in this class: