Patent ID: 8646639

Claim:
A box comprising: a horizontal floor having side and end edges; respective side and end walls at the side and end edges, each of the end walls being formed with an upwardly open cutout; respective hinges pivoting each of the walls to the respective edge for movement between an erect position extending upward from the floor and a stowed position with the walls lying atop one another atop the floor; respective spring tongues projecting from ends of the side walls and engageable with the end walls in the erect positions of the walls to hold the walls in the erect positions; respective panels slidable on the end walls between respective upper closed positions closing the respective cutout and lower open positions exposing the respective cutout; a respective actuating element vertically shiftable on an outer face of each of the panels; respective links horizontally shiftable on the outer face of each of the end walls to each side of the respective cutouts and outwardly engageable with the respective tongues to press same outward out of engagement with the end walls in the erect positions of the walls; and respective pairs of interengaging angled cam formations on ends of the actuating elements and on the links of the respective end wall for redirecting motion and pushing the links into the outer position when the respective actuating elements are moved upward.