US 4,787,552 AGranted

Case for packaging

AssigneeChuo Kagaku Kabushiki Kaisha

InventorEiji Natori

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Abstract

A case for packaging, manufactured according to the present invention, comprises a case body and a lid that engages with the case body, an engaging tab attached to the case body side and protruding outwardly, a slot attached to the lid side in such a manner that the engaging tab can be inserted in the slot, the outer surface of the engaging tab being formed of a first elevated face that protrudes substantially laterally to the direction of protrusion of the engaging tab, a step-gap part provided on the rear side, the outer surface of an edge part on the case body side that is positioned opposite to the engaging part, being formed of a second elevated face that protrudes in the same direction as the direction of protrusion of the first elevated face, the second elevated face being provided with a major cut line into which the engaging tab can be inserted longitudinally to the second elevated face, and sub cut lines that start at both ends of the major cut line towards the inside.

Claims1

Dependent claims

A case for packaging, comprising an outwardly protruding tab, a slot into which the engaging tab can be inserted, the engaging tab and the slot being placed in an opposing and engageable manner on the case body side and the lid side, respectively,

the outer surface of the engaging tab is formed of a first elevated face that protrudes substantially laterally to the direction of protrusion and a step-gap part that is provided on the rear side,
the slot is provided with a second elevated face on the outer surface of the case body side or on the edge part on the lid side, in such a manner that the elevated face is opposite to and engageable with the engaging tab, the second elevated face protruding in the same direction as the direction of the protrusion of the engaging tab, the second elevated face being provided with a major cut line of such a length that the engaging tab can be inserted in the longitudinal direction to the second elevated face, and the second elevated face being provided also with sub cut lines that start from both ends of the major cut line, towards the inside.

Dependencies are inferred from the claim text.