Patent ID: 7214052
Filing Date: 2007-05-08
Classification: B29C,B29L,Y10S

Abstract:
1. An injection molding tool for the production of disc shaped information carriers comprising: a) a first and a second mirror block for the formation of a cavity, which are located opposite to each other and which are movable relative to each other for the opening and the closure of the cavity; b) a form ring which encloses the first mirror block concentrically and which borders the cavity towards the outer edge, and which is movable relative to the first mirror block; c) wherein between the first mirror block and the form ring enclosing it means are provided for the reduction of friction during a motion of the form ring relative to the first mirror block; d) wherein the means comprise a sliding ring located concentrically between the first mirror block and the form ring enclosing it; and e) at least one additional bearing located concentrically between the first mirror block, wherein the form ring encloses the at least one additional bearing.