| 摘要 |
A foldable open-top container is constructed from a single sheet 1 of material having fold lines ( 4,7 ) enabling the sheet to be transformed into the container by folding. The container has a base ( 3 ) and side walls ( 16 ) that extend from the base and define a rim ( 5 ). The side walls are joined at each end by corners ( 11 ). Each corner is a flap formed from the two fold lines. The flap has an outside part ( 8 c) that extends into one side wall, an inside part ( 8 b) that extends into the adjoining side wall, and a middle part ( 8 a) between the inside and outside parts. A first integral formation on one of said parts (notch 12 ) is interlocked with another of said parts (notch 14 ) to retain the flap in a folded condition.
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