초록 ▼

A quick-assembly corrugated box has an automatic bottom panel which extends from a side panel, and has two converging reverse-scored fold lines which extend outwardly from the side panel. End flaps are folded up from the automatic bottom panel and are adhesively connected to the end panels to form d

A quick-assembly corrugated box has an automatic bottom panel which extends from a side panel, and has two converging reverse-scored fold lines which extend outwardly from the side panel. End flaps are folded up from the automatic bottom panel and are adhesively connected to the end panels to form double ply side walls. One of the end flaps has a diagonal fold line, with portions of the flap above the diagonal fold line only being adhered to the end panel. The angles of the reverse scored fold lines are selected to allow the automatic bottom panel to be deployed from a folded position alongside the side and end panels to an assembled position perpendicular to the side and end panels, simply by displacing one side panel with respect to the other. Substantially increased stacking strength is provided by inserting right-angle corner pieces in reinforcement-receiving pockets defined between the edges of the end flaps and the end panels. Tabs may be provided on the end flaps to permit engagement and retention of the corner pieces. The box may be conveniently sealed by hook-and-loop fastener material affixed to closure flaps which extend downwardly from two overlapping side top flaps.

대표청구항 ▼

[ I claim:] [1.] A corrugated paperboard article for assembly into a box, the article comprising:a first side panel;a first end panel which extends sidewardly from the first side panel;a second end panel which extends sidewardly from the first side panel spaced from the first end panel;a second side

[ I claim:] [1.] A corrugated paperboard article for assembly into a box, the article comprising:a first side panel;a first end panel which extends sidewardly from the first side panel;a second end panel which extends sidewardly from the first side panel spaced from the first end panel;a second side panel extending between and connected to the first end panel and the second end panel;an automatic bottom panel which extends from the first side panel along a bottom fold line, the automatic bottom panel having an outer edge which is substantially parallel to the bottom fold line and which is spaced from the bottom fold line, wherein a first fold line extends from the bottom fold line to the automatic bottom panel outer edge, and wherein a second fold line extends from the bottom panel fold line to the bottom panel outer edge, such that the first fold line and the second fold line converge toward one another and terminate at the bottom panel outer edge;a first end flap which extends from the automatic bottom panel along a first end flap fold line, a first angle being defined between the first end flap fold line and the first fold line, wherein a portion of the first end flap is adhesively connected to the first end panel, to form a multi-ply end wall; anda second end flap which extends from the automatic bottom panel along a second end flap fold line, a second angle being defined between the second end flap fold line and the second fold line, wherein a diagonal fold line extends along the second end flap, dividing the second end flap into an upper portion which is adhesively connected to the second end panel, and a lower portion below the diagonal fold line which is not connected to the second end panel, wherein parallel sideward displacement of the first side panel with respect to the second side panel causes the article to expand into a box, with the automatic bottom panel being alternatively positioned in a collapsed position alongside and substantially parallel to the side and end panels, and an assembled position substantially perpendicular to the side and end panels.