Patent ID: 7886958
Filing Date: 2011-02-15
Classification: B65D

Abstract:
1. A blank of sheet material for forming a container including automatically locking bottom panels, said blank comprising: a pair of end panels, a pair of side panels and at least one corner panel interconnected to form a pair of opposing end walls, a pair of opposing side walls and a corner wall of the container, said at least one corner panel extending between an adjacent end panel and side panel; a plurality of bottom panels for forming a bottom wall of the container, said bottom panels comprising a pair of bottom end panels each extending from a bottom edge of each of said pair of end panels along respective end fold lines, and a pair of bottom side panels each extending from a bottom edge of each of said pair of side panels along respective side fold lines, a first bottom side panel having a free edge spaced a first distance from a first side fold line of the respective side fold lines; a first coupling tab integral with a first bottom end panel of said pair of bottom end panels, the first coupling tab having a free edge spaced the first distance from a first end fold line of the respective end fold lines for connecting the first bottom end panel to a first end panel of the pair of end panels, the free edge of the first coupling tab being substantially parallel to the free edge of the first bottom side panel; and a second coupling tab integral with a second bottom side panel of said pair of bottom side panels, the second coupling tab having a free edge spaced the first distance from a second side fold line of the respective side fold lines for connecting the second bottom side panel to a second side panel of the pair of side panels, the free edge of the second coupling tab being substantially parallel to the free edge of the first bottom side panel, wherein said first coupling tab attaches to one of said pair of bottom side panels, and said second coupling tab attaches to one of said pair of bottom end panels, said coupling tabs configured to upwardly direct said bottom panels when the container is moved from an erected position to a knocked-down flat position and downwardly direct said bottom panels when the container is moved from a knocked-down flat position to an erected position.