| 摘要 |
A single piece protective device that can be stacked or nested in an unfolded position and then folded into the desired shape when ready for use is provided. The device is made from a substantially rectangular sheet of laminated paperboard. The sheet comprises an outer wall and an inner wall connected by a hinged area running longitudinally from top to the bottom. The hinged area comprises a plurality of longitudinal creases or scores. The sheet is made of multiple plies of material laminated together. The plies can be made from different types of materials, and may be oriented in different directions to achieve desired structural properties. The unfolded sheets are nestable for efficient storage and shipping. |
