초록 ▼

A container case includes a cover, a base and a hinge which pivotally joins the cover and the base on a corresponding side of each. The cover, base and hinge are formed by blow molding. The cover and base are double-walled in construction and identical so that they can be formed from the same mold.

A container case includes a cover, a base and a hinge which pivotally joins the cover and the base on a corresponding side of each. The cover, base and hinge are formed by blow molding. The cover and base are double-walled in construction and identical so that they can be formed from the same mold. Each of the cover and base includes cylindrically-shaped, hollow extensions which form portions of the hinge. When the case is assembled, alternate hinge portions of the cover and base are aligned end-to-end along a common axis and cooperatingly mate to form the full hinge. The hinge is drilled to form openings in the end surfaces of the mating hinge portions which communicate with the interior, hollow areas of the hinge portions to form a single bore through the entire axial length of the hinge. A polyethylene pin is received by the hinge bore to interlock the individual hinge portions. The container case is also provided with a slidable latch having a C-shaped polyethylene bracket which slides on rails or tracks formed on extensions of corresponding sides of the cover and base. The bracket is capable of sliding to overlap mating edge portions of the latch extensions to keep the container case closed.

대표청구항 ▼

A method for making a container case including a cover and a base, the cover having a substantially planar top wall and peripheral side walls extending from the top wall, the base having a substantially planar bottom wall and peripheral side walls extending from the bottom wall, each of the top wall

A method for making a container case including a cover and a base, the cover having a substantially planar top wall and peripheral side walls extending from the top wall, the base having a substantially planar bottom wall and peripheral side walls extending from the bottom wall, each of the top wall, bottom wall, and peripheral side walls having an inner wall and an outer wall, each of the cover and the base having a plurality of separated hinge portions connected between the inner and the outer walls of a peripheral side wall, the inner and outer walls of the cover defining a first hollow space, the inner and outer walls of the base defining a second hollow space, comprising the steps of: blow molding the cover from a thermoplastic material to form the top and side walls and hollow hinge portions with end surfaces so that the interiors of the hollow hinge portions communicate with the first hollow space; blowing molding the base from the thermoplastic material to form the bottom and side walls and hollow hinge portions with end surfaces so that the interiors of the hollow hinge portions communicate with the second hollow space; fitting the hinge portions of the cover and the hinge portions of the base together in an end-to-end arrangement along a common axis; drilling opening in the end surfaces of the hinge portions to define a central bore; and inserting a hinge pin into the central bore. A container case including a cover and a base, the cover having a substantially planar top wall and peripheral side walls extending from the top wall, the base having a substantially planar bottom wall and peripheral side walls extending from the bottom wall, each of the top wall, bottom wall, and peripheral side walls having an inner wall and an outer wall, each of the cover and the base having a plurality of separated hinge portions connected between the inner and the outer walls of a peripheral side wall, the inner and outer walls of the cover defining a first hollow space, the inner and outer walls of the base defining a second hollow space, made by a process comprising the steps of: blow molding the cover from a thermoplastic material to form the top and side walls and hollow hinge portions with end surfaces so that the interiors of the hollow hinge portions communicate with the first hollow space; blow molding the base from the thermoplastic material to form the bottom and side walls and hollow hinge portions with end surfaces so that the interiors of the hollow hinge portions communicate with the second hollow space; fitting the hinge portions of the cover and the hinge portions of the base together in an end-to-end arrangement along a common axis; drilling openings in the end surfaces of the hinge portions to define a central bore; and inserting a hinge pin into the central bore.