Articulation arrangement for detachably connecting two wall parts

An articulation arrangement for detachably connecting two wall parts of a container, each of the wall parts having a surface and an underside, one of the wall parts having a side face extending between the surface and the underside, and the other wall part comprising a marginal strip integral with the other wall part and defining an outer border of the other wall part, the marginal strip having an arcuate surface defining an arc of a circle about an axis extending parallel to a longitudinal direction of the marginal strip, the arc extending from the surface of the other wall part to an underside of the marginal strip and the marginal strip having a thickness extending from the surface to the underside of the other wall part, and the side face of the one wall part facing the arcuate surface of the marginal strip, the articulation arrangement comprising a groove in the underside of the marginal strip and extending parallel to the longitudinal direction thereof, the groove having a bottom extending semicircularly about said axis, the side face being spaced from the axis a distance at least approximately corresponding to the radius of the arc of a circle of the arcuate surface, the marginal strip further defining a recess extending in the longitudinal direction and leading from the arcuate surface to the groove, a pivot pin coaxially held in the groove for pivoting about said axis and for axial displacement therein whereby the one wall part may be pivoted about the axis from a first position wherein the one wall part extends perpendicularly to the other wall part to a second position wherein the wall parts are coplanar, and a connecting web connecting the side face to the pivot pin, the connecting web having a width extending in the longitudinal direction and fitting through the recess.