Container with anticontact cutout at each corner

Abstract

A container having an anticontact cutout-structure around each corner is disclosed. The cutout-structure almost completely prevents a twist lock from unexpectedly coming into contact with the edge frames of each corner and allows the edge frames to be free from being crushed or broken by the twist lock. In order to form the anticontact cutout-structure, a top cutout is formed on each of the top edge frames at a position around each of the top corner castings, while a bottom cutout is formed on each of the bottom edge frames at a position around each of the bottom corner castings. Each of the top and bottom cutouts has a length and depth suitable for preventing each of the top and bottom edge frames from coming into contact with the twist lock. A metal panel is attached to the surface of each of the top and bottom cutouts, thus protecting each cutout from the twist lock.

Dependencies are inferred from the claim text.