Multipack for magnetic tapes wound onto hubs

Details Multipack for magnetic tapes wound onto hubs Multipack for magnetic tapes wound onto hubs

1994-12-22

1997-03-04

Foster, Jimmy G.

Special receptacle or package

For holding a machine readable recording medium

For holding plural diverse recording media in the same holder

206394, 206395, 206397, B65D 85672

Patent

active

056070527

DESCRIPTION:

BRIEF SUMMARY
A packaging container composed of at least two blanks of packaging material, of which one comprises a bottom part with side parts joined thereto and the other represents a square top part and the at least two blanks fit over the top part by means of foldable joining tabs of the side parts, for magnetic recording media (known as pancakes) wound onto hubs provided with internal bores, the internal bores of the hubs and also a central clearance of the bottom part and of the top part being penetrated by a one-part cylindrical sleeve which belongs to the packaging container and onto which the pancakes can be stackably fitted.
A packaging container of the abovementioned type is known from EP-A 0 475 055. U.S. Pat. No. 1,889,933 describes a packaging container for wound-up tapes, in which the side parts can be inserted during folding up of the pack into a slit which is adjacent to the upper edge of the sleeve.
Packaging containers of this type are optimal for economic and ecological reasons in comparison with the previously known polystyrene-foam packs in particular because most of the parts are returnable or reusable and because the volume ratio of packaging to contents is considerably better than in the case of the already mentioned polystyrene-foam packs. These aspects play a great part in the shipping of the pancakes, since what are known as pancake packs are sold in large quantities worldwide by the magnetic tape producers. In these packs, the magnetic tape is wound onto hubs, for example flangeless hubs, either what are known as NAB hubs or stackable hubs according to U.S. Pat. No. 4,081,151 or others. These pancakes are packed either individually or in multipacks and covered with a shrink film. The pack known from EP-A 0 475 055 has the following disadvantages: difficulty complicated or voluminous design or else is expensive to produce thus requires an additional operation snap elements when joining together.
Therefore, the object was to provide packaging containers of the generic type mentioned above involving as little use of material as possible, in which both the cardboard blank and the hub sleeve are of as simple a construction as possible and the containers are easy to put together.
According to the invention, this object was achieved by substantially right-parallelepipedal packaging containers having the features stated in the defining part of claim 1. Further details of the invention emerged from the subclaims, the description and the drawings.
The invention is explained in more detail below with reference to the drawings, in which:
FIG. 1a shows an embodiment of the packaging container according to the invention in the folded-open state
FIG. 1b shows the same pack in the folded-together state
FIG. 2a shows a further, particularly preferred embodiment in the folded-open state
FIG. 2b shows the same pack in the folded-together state.
As can be seen from FIG. 1a, an embodiment of the packaging container comprises a two-part blank, of which one part (1) forms the bottom part and the side parts and the second part is the top part (2). Both bottom part (1) and top part (2) have a central clearance (7), through which the hub sleeve (6) can be inserted. The cylindrical hub support may, for example, be inserted through the clearance (not drawn) of the bottom part and may contain on its underside a base (likewise not drawn), by which it is fixed in the bottom part. The pancakes are then stacked one on top of the other on the hub support, until approximately the upper edge of the sleeve (6) is reached. Then the top part (2) is placed on and subsequently the tapering ends (3) of the side parts are inserted into four slit-shaped openings running in the circumferential direction on the upper edge of the sleeve (6). The triangular ends of the side parts are connected in one piece with the bottom part (1) as usual by means of bending lines and intermediate parts (4). The hub support, fitted with pancakes, is supported transversely with respect to its center axis in the closed pack by the bottom part (1) on the on

REFERENCES:
patent: 1889933 (1932-12-01), Pratt
patent: 2327156 (1943-08-01), Scott
patent: 4081151 (1978-03-01), Ender et al.
patent: 4491222 (1985-01-01), Garccetta et al.
patent: 5363962 (1994-11-01), Toral et al.

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