Patent ID: 9199750
Filing Date: 2015-12-01
Classification: B29C,B65B,B65C

Abstract:
1. A film opening mechanism for delivering a tubular film collapsed into a sheet after it is opened into a predetermined shape, the film opening mechanism comprising: a mandrel for causing the tubular film to be opened into a predetermined state by fitting it thereon; and at least a pair of feed belt units, each having a feed belt which nips the tubular film fitted on the mandrel in cooperation with the mandrel to transport the tubular film toward a lower side of the mandrel, wherein attraction means for attracting the mandrel and the feed belt to each other by a magnetic attractive force is provided, the attraction means comprising a magnet embedded in a portion of the mandrel in which the tubular film is nipped by the feed belt and a magnetic material provided in the feed belt, wherein: