| 摘要 |
<p>A light-weight, robust, foldable box which can be folded flat, comprises a bottom panel, swing side panels and folding side panels of corrugated plastics board. The bottom panel has vertical panels on both ends and a retaining portion in the vertical panels. The swing side panels are produced of corrugated plastics board used in such a direction that a core member will be vertically positioned, and are provided with a reinforcing band at the lower end and an engaging portion formed in the reinforcing band to thereby engage with the retaining portion. In the upper end of the swing side panel is formed an inside-folding line which allows the swing of the swing side panel. The folding side panel is used in such a direction that the core member of corrugated plastics board will be vertically positioned, and is provided with inside-folding lines in the upper and lower portions and with an outside-folding line at the center between the inside-folding lines provided in the upper and lower portions, so that the folding side panel may be folded to a sidelong V-shaped form. The swing side panel and the folding side panel are connected in a portion above the uppermost inside-folding line.</p> |
