Transportation case made of plastics - has sidewalls which run perpendicularly to bottom and have step within their vertical height parallel to bottom, and upper section of sidewalls displaced outwards in relation to lower section

摘要

The sidewalls (2) of the case run perpendicularly to the bottom and have a step within their vertical height parallel to the bottom. The upper section of the sidewalls is displaced outwards in relation to the lower section. The lower section of the sidewalls has ribs (9) or protrusions orientated outwards for the rotation stacking principle and the upper section has protrusions (4) orientated outwards. The protrusions in cross-section have a U-shape and the sides run parallel to each other.