Foldable container

A foldable container, comprising:

• a rectangular bottom plate;
• side plates on the long sides of the bottom plate mounted rotatably on the long sides that are opposed to each other;
• side plates on the short sides of the bottom plate mounted rotatably on the short sides that are opposed to each other, wherein the foldable container is folded by folding down a pair of the side plates on the short sides onto a pair of the side plates on the long sides previously folded down and the foldable container is assembled in the form of a box by raising the pair of the side plates on the short sides and then raising the pair of the side plates on the long sides;
• at least one supporting protrusions provided on part of both side edges and extending from an inner face of the side plate on each short side, wherein each supporting protrusion of the at least one supporting protrusion supports an adjacent side edge of the adjacent side plate on the long side to prevent the side plate on each long side from falling outward;
• a rising protruded portion on a side edge of each long side of the bottom plate providing a lateral shaft portion for rotatably mounting a corresponding side plate on the long sides;
• and
• at least one second concave portion provided in the rising protruded portion on each long side of the bottom plate to receive a corresponding supporting protrusion of the at least one supporting protrusion on the side plates on the short sides when folded down, wherein a plane vertical to the bottom plate passes through the at least one supporting protrusion and an axis of the lateral shaft portion on each of the long sides.

A foldable container, comprising:

• a rectangular bottom plate;
• a first set of side plates on first sides of the bottom plate mounted rotatably on the first sides that are opposed to each other;
• a second set of side plates on second sides of the bottom plate mounted rotatably on the second sides that are opposed to each other, wherein each set of the first and second sets of side plates comprises a pair of side plates and the foldable container is folded by folding down the pair of the side plates on the second sides onto the pair of the side plates on the first sides previously folded down and the foldable container is assembled in the form of a box by raising the pair of the side plates on the second sides and then raising the pair of the side plates on the first sides;
• at least one supporting protrusion provided on part of each edge portion on an inner face of each side plate of the second set of side plates, wherein each supporting protrusion of the at least one supporting protrusion supports a side edge portion of an adjacent side plate of the first set of side plates when the second set of side plates is raised to prevent the first set of side plates from falling outward;
• and
• concave portions provided in edge portions along the first sides of the bottom plate in which the supporting protrusions are received when the second set of side plates are folded down, wherein when the first set of side plates are folded down, a first side plate of the first set of side plates has an inclination along an upper surface from an axis of rotation to a free edge and a second side plate of the first set of side plates has a top surface substantially parallel to the bottom plate, and wherein the first side plate of the first set of side plates and the second side plate of the first set of side plates have a free end portion extending along the free edge, such that the free end portions have a reduced thickness from a thickness of the first side plates to overlap one another at the reduced thickness.