COUPLED BOX

PURPOSE:To realize a coupled box which is easy to fabricate and work and which is easy to open by forming V-shaped cut lines, breakage guide lines, cut lines, etc., of discontinuous cuts provided on respective box bodies. CONSTITUTION:A cut line 18 for forming an initial end for opening is provided at the center of a lower part on an outer side wall 2b of each box body 1, and with this cut line used as a start point a V-shaped cut line 19 reaching an upper end corner on the outer side wall 2b is provided. Breakage guide lines are provided on both edges of a lid flap 12, and these tips are coupled to each other by a cut line 23. A horizontal cut line 21 intersecting with the V-shaped cut line 19 and coming across the outer side wall 2b and both end walls 3a, 3b is provided, and a breakage line 22 continuous with this horizontal cut line 21 and going upward along a side rim of each end wall 3a, 3b is provided. The cut line 18 is torn, and the V-shaped cut line 19, the breakage guide line 24, the cut line 23, the horizontal cut line 21 and the breakage line 22 are sequentially torn to open the box.