| 摘要 |
PROBLEM TO BE SOLVED: To provide a pusher of a packaging apparatus which is capable of preventing deformation of a packaged body. SOLUTION: An air-supply port 53 is formed in a front face 46 of a head part 36 of a pusher 1 used for the packaging apparatus, and an air-suction port 52 is formed in a side part 43. The air-supply port 53 can cause the inside and the outside of a bag 2b to be an air-communicating state when the front end part of the pusher 1 is located inside the bag 2b. The air-suction port 52 acts such that a gusset 57 is formed at an opening end part by sucking air inside the bag 2b when the front end part of the pusher 1 moves inside the bag 2b in a direction to come out of the bag 2b. COPYRIGHT: (C)2009,JPO&INPIT |
