Patent ID: 7086429
Filing Date: 2006-08-08
Classification: B65D

Abstract:
1. A loading method of an envelope type inner bag for a transport tank into said transport tank in a removable manner, said transport tank having a work hatch and a first supply-discharge opening, said inner bag having a second supply-discharge opening to be fitted to said first supply-discharge opening, said loading method comprising: a folding step of folding an inner bag body of said inner bag, said inner bag body being folded inward or rolled toward said second supply-discharge opening from both ends of said inner bag body in parallel with a central line extending in a width direction of said inner bag body after both side edges of said inner bag body are folded inward an appropriate number of times in parallel with a central line extending in a longitudinal direction of said inner bag in a state that said second supply-discharge opening is directed downward; an insertion step of inserting said folded inner bag into said transport tank from said work hatch; a fitting step of inserting said second supply-discharge opening into said first supply-discharge opening in said transport tank to be fitted thereto; and an unfolding step of unfolding said inner bag body in the longitudinal direction in said transport tank.