Patent ID: 6575207
Filing Date: 2003-06-10
Classification: B65B

Abstract:
An opening apparatus for continuously conveyed bags in which a nozzle is inserted into a mouth of a bag among bags that are continuously conveyed at a constant speed and uniform intervals, and a gas is caused to jet into said bag from a discharge opening of said nozzle so as to open said bag, whereinsaid nozzle is continuously revolved on a circular track with said discharge opening of said nozzle being kept to face a bottom of said bag so that said discharge opening advances toward and withdraws from said mouth of said bag which is on a conveying path of said bags, said circular track being substantially parallel to a conveying direction of said bags and within a plane that runs along longitudinal direction of said bags, and a time required for said nozzle to complete one revolution is set at an integral multiple of a time required for one bag to be conveyed over a distance between bags next to each other.