Patent ID: 9352497
Filing Date: 2016-05-31
CPC Classification: B29C

Claim Text:
1. Mould ( 10 ) for the rotational moulding of manufactured articles of plastic material, the mould ( 10 ) comprising two half-moulds ( 12 , 14 ) wherein at least one of said two half-moulds ( 12 , 14 ) is provided, on its surface, with at least one insert-holding device ( 18 ) comprising a rod ( 20 ) provided with a first end ( 46 ) passing through the wall of the half-mould ( 12 , 14 ) at a respective passage channel ( 24 ) and which is axially movable for projecting inside the mould ( 10 ), so that on said first end ( 46 ) an insert ( 22 ), to be embedded in the moulded manufactured article, can be mounted, the mould ( 10 ) further comprising a first pneumatic circuit ( 32 A) able to apply a predetermined pressure, positive or negative, inside said mould ( 10 ), characterized in that said at least one insert-holding device ( 18 ) is operatively connected to a second pneumatic circuit ( 32 B) able to apply a predetermined pressure, positive or negative, and it is internally provided with a plurality of means ( 34 , 36 , 38 ) configured for applying said predetermined pressure at said passage channel ( 24 ), said second pneumatic circuit ( 32 B) being configured to apply, at said at least one insert-holding device ( 18 ), the same predetermined pressure value which generates inside the mould ( 10 ) by means of the first pneumatic circuit ( 32 A).