Patent ID: 6200249
Filing Date: 2001-03-13
Classification: B65B

Abstract:
An apparatus for pulling a cylindrically formed bag-making material for a bag maker-packaging machine, said apparatus comprising:a pair of pull-down belt units each including a pull-down belt for pulling said bag-making material in a longitudinal direction;a pair of belt-supporting members which move towards or away from each other in a mutually coordinated manner, each supporting and being attached to a corresponding one of said pull-down belt units such that said corresponding pull-down belt unit is movable as a whole relative thereto;force-applying means for applying a variable force between said bag-making material and each of said pull-down belts by changing the relative position between said each pull-down belt and said corresponding one of said belt-supporting members; andposition-indicating means attached to at least one of said belt-supporting members for indicating distance between said belt-supporting members.