Patent ID: 9186841
Filing Date: 2015-11-17
Classification: B29C

Abstract:
1. A blow mould for plastic containers comprising at least two half-moulds, at least two half-mould holders, each half-mould holder supporting one of said half-moulds, each half-mould holder and each half-mould defining respective complementary coupling surfaces between half-mould holder and half-mould, at least one quick coupling device to lock each half-mould to the respective half-mould holder, wherein said at least one quick coupling device is fixed to the respective half-mould holder and comprises one locking element and one force multiplier mechanism, said force multiplier mechanism comprising a locking system with hinged levers, having a first lever firmly hinged to the respective half-mould holder, wherein said locking element is a bolt that can move, by actuating said force multiplier mechanism, from an unlocking position to a locking position by emerging from the half-mould holder through a through hole provided in the thickness of the half-mould holder, to interact with the coupling surface of the respective half-mould, whereby half-mould and respective half-mould holder are locked to each other in a position in which the respective complementary coupling surfaces are coupled to each other, and wherein said force multiplier mechanism remains kinematically fixed to the quick coupling device both in said unlocking position and in said locking position.