BOX-SHAPED CONTAINER WITH TEAR-OPEN CUT LINE

PROBLEM TO BE SOLVED: To provide a box-shaped container with a cut line for opening a lid capable of easily opening, along a precut line, a lid opening which has been conventionally difficult to be unsealed along an intended cut line and whose lid might have torn off halfway. SOLUTION: A guide cut line L comprising a connection H and a guide cut O alternately extending in the direction of cutting a lid is formed on the lid 10 of the box-shaped container 20. A tear-open piece 14 is formed at the side of the guide cut line L. A V-shaped branch cut R is formed at the guide cut O, and in addition, a connection D is formed between the branch cut and the guide cut. The connection D has a variable interval so that it is small at the center from the center toward ends of the guide cut line and larger at the ends. COPYRIGHT: (C)2009,JPO&INPIT