Importance

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Abstract

A blank for constructing a box file, card index box, or the like which, in the made up form includes a pair of similar half shells hinged together along a common edge. The blank includes a pair of base members each having outwardly extending side portions on at least three sides which can be bent up to form side walls. Each side portion is joined to the adjacent side portion by an inwardly foldable connection section which is adapted to form a right angled corner when the blank is folded into shape. An interconnecting or stacking system for the file storing boxes is also provided. The stacking system includes a connector body having a slot or aperture and a generally U-shaped clip member having a pair of legs. Each leg of the clip is adapted to fit in a respective slot of the connector body. When two such connector bodies are suitably positioned in the adjacent walls of two corresponding boxes, the boxes may be clipped together by inserting the legs of the clip member into the adjacent slots.

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First Claim