| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a box with an illegal unsealing preventive function which is hardly unsealed by an ill-intentioned third party. <P>SOLUTION: Opening ends of cylindrical circumferential walls 11a-11d are closed by a flap-like closing lid 20 extending from the cylindrical circumferential walls. The closing lid 20 comprises an opening closing part 21 and an insertion flap 22 which extends from the opening closing part and is inserted in a box. An insertion projecting piece 25 with a first engagement cutout 26a formed on both sides of a root is formed on the insertion flap 22. A sheet 30 is arranged along an inner surface of the cylindrical circumferential wall in which the insertion flap 22 of the closing lid is inserted, and an insertion slot 31 with the insertion projecting piece 25 is formed in the sheet 30. A second engagement cutout 31a extending outwardly is formed in both ends of the insertion slot 31. When the closing lid 20 is closed so that the insertion projecting piece 25 is inserted in the insertion slot 31, the first and second engagement cutouts 26a, 31a are engaged with each other to maintain the closed condition, and any illegal unsealing by a third party can be prevented thereby. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
