Patent ID: 8343023
Filing Date: 2013-01-01
Classification: B31B,B65D

Abstract:
1. A method for manufacturing an outer box with an open front end surface and a closed rear end surface, including the following steps of: preparing a flat blank for the outer box, the flat blank including left and right reinforcing tabs; placing a die onto a base surface of the blank to form the outer box therearound; folding the blank from flat to produce a U-shaped intermediate form by folding left and right base side walls relative to the base surface so as to rest against the die; folding the left and right reinforcing tabs inward before folding of a rear end surface; folding the rear end surface, which adjoins the base surface with the die still disposed on the base surface; folding a cover surface onto the U-shaped intermediate form, with the cover surface adjoining the rear end surface; welding the left and right reinforcing tabs to the rear end surface; and welding the cover surface to the U-shaped intermediate form by ultrasound sealing; and then removing the die from the outer box.