Patent ID: 9533820
Date: 2017-01-03
CPC Classifications: B65B,B65D

Claim:
1. A cigarette package, comprising: an inner pack having an inner wrapper, a parallelepiped outer box enclosing said inner pack, said outer box being made of a paper blank, said outer box including: a box body having an open end, a tongue lid joined to the box body and capable of opening and closing the open end, said tongue lid being joined to the box body at a rear edge of the open end and functioning as a hinge, the tongue lid including a top wall extending from the rear edge of the open end and adapted to close the open end, and said tongue lid further including inner top flaps in a pair bonded to an inner surface of the top wall at the opposite ends of the top wall, a tongue extending from the top wall and adapted to overlie a front wall of said box body at the time said outer box is formed, connecting lugs in a pair, bonded to the outer surfaces of opposite side walls of said box body, a corner boundary connecting the box body and the lid, said corner boundary being formed by folding the paper blank along a folding line and having an outer concave face and an inner convex face, and a parting line formed on the folding line of said corner boundary connecting the box body and the lid separably, the parting line defining side separation lines each connecting a side edge of the tongue and the corresponding connecting lug separably, and top separation lines each connecting the side wall of said box body and the corresponding inner top flap, said parting line having perforations arranged in one direction at specified intervals, and connecting portions connecting the adjacent perforations, wherein each of the connecting portions has an outer face and an inner face corresponding to the outer concave face and the inner convex face of said corner boundary, respectively, and linkage of fibers constituting the paper blank at the connecting portions is broken with respect to a direction across the parting line so that the connecting portions are formed as fatigued joints.