| 摘要 |
The collapsible box (1) comprises four opposite pairs of side walls (2-5) joined together at the box corners. A base sheet has sections (13a-c) joined together by their side walls along one of the pairs of box side walls. The first section has at least one cavity (19,20) in its side edge facing the second section. The second section also has a cavity (17,18) for each cavity in the side edge of the first section. The shape of these cavities enables them to be locked together and prevent movement of the base sheet, esp. in the plane of the base. |
