| 主权项 |
1. A substantially planar sheet for folding into a container, comprising:
a first locking tab positioned on a first panel of the sheet; a second locking tab positioned on a second panel of the sheet, wherein the first panel is configured to be folded with respect to the second panel during a folding process for folding the sheet into a three-dimensional container, wherein the second locking tab is configured to be positioned adjacent to the first locking tab after at least one folding step in which the first panel is folded relative to the second panel; a first locking flap positioned on a third panel of the sheet, wherein the third panel is configured to be folded with respect to the first and second panels during the folding process, wherein the first locking flap comprises a slot configured to receive the first locking tab and the second locking tab to secure the first panel, the second panel, and the third panel in place to at least partially define the three-dimensional container after the folding process, wherein the first locking flap comprises a door, wherein the door is configured to open to expose the slot for receiving the first locking tab and the second locking tab upon bending the first locking flap with respect to the third panel, and wherein the sheet is configured such that, upon folding the third panel with respect to the first and second panels during the folding process, at least one of the first locking tab and the second locking tab automatically engages the door to cause the third locking flap to bend and expose the slot. |
