Patent ID: 6464487
Filing Date: 2002-10-15
Classification: B29C,Y10S

Abstract:
Injection-moulding tool for the production of information carriers in disc form, which injection-moulding tool comprises for the forming of an injection mould a first and a second mirror block, which lie opposite each other and are movable in relation to each other for opening and closing the mould, and also a form ring, which concentrically encloses the first mirror block and closes off the injection mould on an outer edge and is movable in relation to the first mirror block, a separate sliding ring for reducing the friction between the form ring and the first mirror block when there is a movement of the form ring in relation to the first mirror block being provided between the first mirror block and the form ring enclosing it, characteriezed in that the separate sliding ring is arranged concentrically between the first mirror block and the form ring enlcosing it.