Patent ID: 8146328
Filing Date: 2012-04-03
Classification: B65B,B65H

Abstract:
1. A film supply apparatus comprising: two film holders supporting two rolls of film as a film on a use side and a film on a stand-by side, respectively; a feed roller for feeding the film on the use side; a film holding member releasably holding a leading end portion of the film on the stand-by side in the upper stream of the feed roller in a feeding direction of the film such that the film on the stand-by side is drawn out to face the film on the use side; a film returning mechanism having a pulling back member placed upstream of the film holding member in the feeding direction of the film and the pulling back member is moved upstream in the feeding direction of the film in a state in which the pulling back member holds the film on the stand-by side in the upper stream of the film holding member, whereby the pulling back member returns the film on the stand-by side upstream in the feeding direction thereof; and a fusion bonding mechanism placed between the film holding member and the pulling back member in the feeding direction of the film and heat-sealing the two opposite films throughout a width thereof.