Patent ID: 7833002
Filing Date: 2010-11-16
Classification: B29C,B65B

Abstract:
1. A lift mechanism for a tool in a packaging apparatus in which cavities are formed in web material for receiving products to be packaged, the lift mechanism comprising: a pair of arms interconnected with the tool, wherein the pair of arms are movable between a first position and a second position, wherein the pair of arms raise the tool when moved from the first position to the second position; a slave drive that includes a flexible driven member coupled to the pair of arms and adapted to translate between a third position and a fourth position, wherein the slave drive moves the pair of arms from the first position to the second position so as to raise the tool when the flexible driven member is translated from the third position to the fourth position and moves the pair of arms from the second position to the first position so as to lower the tool when translated from the fourth position to the third position; and a master drive coupled to the slave drive and adapted to translate the flexible driven member between the third and fourth positions.