| 摘要 |
PROBLEM TO BE SOLVED: To make tray-form housing boxes easier to lift when being stacked. SOLUTION: A front wall 4, a rear wall 5, and side walls 7, 7 of a box body of which the upper surface is opened, are respectively formed of an external front wall 8, an external rear wall 9 and external side walls 18 which are respectively connected to a bottom wall 2 of the above mentioned box body, and an internal front wall 11, an internal rear wall 12 and internal side walls 20, 20 which are folded back inward from the upper edges of the respective external walls, and at the lower edges of the external front wall 8 and the external rear wall 9, chamfered walls 14, 14 which tilt toward the front and rear edges of the bottom wall 2, are formed. Then, external flaps 21, 21 which are superposed on the external surfaces of the internal front wall 11 and the internal rear wall 12, are respectively connected to the front and rear edges of the above mentioned external side walls 18, 18. Also, internal flaps 24, 24 which are respectively superposed on the external surfaces of the internal front wall 11 and the internal rear wall 12, are respectively connected to the front and rear edges of the internal side walls 20, 20 to constitute a tray-form housing box 1. By doing so, a finger is caught by the chamfered walls 14, 14, and the housing box becomes easier to lift. |
