초록 ▼

An integrally injection-moulded rectangular microfilm container with a box section and a hinged lid section, which has cooperating snap-locking protections on lateral walls of the lid and of the box, such protections extending in a direction generally parallel with the rear walls and of the lid and

An integrally injection-moulded rectangular microfilm container with a box section and a hinged lid section, which has cooperating snap-locking protections on lateral walls of the lid and of the box, such protections extending in a direction generally parallel with the rear walls and of the lid and box of the container, whereby easy unmoulding of the container from the mould is obtained.

대표청구항 ▼

An injection-moulded generally retanguloid container comprising a box section having generally parallel opposite side walls, front, back and bottom walls and an open end opposite said bottom wall, and a lid section for closing the open end of said box section opposite said bottom wall, said lid sect

An injection-moulded generally retanguloid container comprising a box section having generally parallel opposite side walls, front, back and bottom walls and an open end opposite said bottom wall, and a lid section for closing the open end of said box section opposite said bottom wall, said lid section being integrally hinged to said box section along the top of its rear wall, and being swingable about said hinge between open and closed positions, said lid section having an extension on at least one of its sides projecting downwardly when in its closed position into overlapping relation with and in close proximity to the corresponding side wall of said box section adjacent its open end, and cooperating snap-locking means on said lid and box sections, said snap-locking means comprising an elongated ridge on each such corresponding side wall of said box section toward the overlapping extension of said lid section at a locus intermediate the front and rear edges of said side wall, said ridge extending along at least the region of said side wall generally adjacent the open end of said box section in a direction generally parallel to the direction of the front and rear edges of said side wall; and a cooperating protrusion on said lid section extension toward the overlapping side wall of said box wall, said protrusion of said extension and said ridge when said lid section is in closed position being disposed in overlapping juxtaposed relation with the cooperating protrusion located nearer the back wall of said box section than said ridge, whereby when said lid section is pivoted from open to closed position, said cooperating protrusion moves with said lid section bodily along an arcuate path crossing the length of said ridge, with at least one of said protrusion and ridge resiliently yielding to temporarily remove the overlap therebetween during such crossing movement, to bring said protrusion and ridge to said overlapping juxtaposed relation.