Special receptacle or package – With pallet feature – Specified pallet legs
Patent
1992-06-25
1994-02-22
Moy, Joseph Man-Fu
Special receptacle or package
With pallet feature
Specified pallet legs
108 511, 108 513, 220605, 425577, 425588, B65D 934
Patent
active
052879704
DESCRIPTION:
BRIEF SUMMARY
The subject matter of the invention is a load carrier of plastic such as is used particularly as a storage and transporting box or container and as a pallet or shelf in storage and transporting systems for merchandise.
The subject matter of the invention is also a tool such as is used for the production of such load carriers of plastic.
The invention is based on such load carriers of plastic in which a base having a planar upper surface is stabilized on the underside by stiffening ribs and in which flat foot strips lying in the direction of the base plane extend at least along two side edges of the base running parallel to one another, are supported at a distance below the base plane by cross-pieces or webs directed transversely relative to the respective side edge, and form standing surfaces of the load carrier. Between the underside of the base, the upper side of the foot strips and the transversely directed webs, there are free spaces which are enclosed to form pockets and are open at least toward the side edge.
Load carriers of plastic having such a basic construction already belong, as box-shaped containers particularly in the form of storage and transporting boxes, to the prior art as known from DE-GM 81 37 907 and DE-GM 89 02 719.
The purpose of this known construction of load carriers of plastic is to provide planar running surfaces for conveying on transporting paths, e.g. roller conveyors, by means of the special arrangement of foot strips below the base itself when the base of the load carrier tends in general to bend in a troublesome manner under the load of the merchandise resting on it.
In the known load carriers, undesirable bending is already countered to a great extent by the special arrangement, in itself, of foot strips beneath the underside of the base. This fact manifests itself in a positive sense particularly when the respective load carrier has already been used for longer periods within a shelf installation for storing the merchandise resting thereon prior to transporting, which is carried out e.g. via roller conveyors, and when it has been supported only by two carrying or supporting strips which only act laterally.
Although increased usefulness with respect to a combined use in shelf installations and on transporting paths has been achieved already by the known manner of outfitting the load carrier of plastic with flat foot strips situated at a distance from one another beneath the underside of the base and by the resulting stabilization, the known load carriers still have disadvantages resulting from the known design shape of their base region and the flat foot strips adjoining the latter at the bottom.
The tools used for producing the known load carriers of plastic are basically designed in such a way that after removal from the mold, which is effected by moving apart the different tool parts, they leave behind a shaping which is completely planar and determined by 90-degree defining edges in the area where the underside of the flat foot strips which forms the running surfaces ends in the base corner regions. This final shaping of the foot strips which is completely planar and determined by substantially right-angled defining edges can easily result in an unwanted hooking of the load carriers not only when they slide into a shelf receptacle, but also as they move along transporting paths, e.g. via roller conveyors, and can accordingly lead to sensitive disturbances in the normal course of the storage and transporting operation. Moreover, such troublesome hooking between the load carriers and the shelf and transporting installations can also lead to damage and destruction of the load carriers themselves.
In order to overcome these disadvantages, the invention has the object of improving load carriers of plastic, particularly storage and transporting boxes or containers, as well as pallets or shelves of the generic type in such a way that the load carriers are effectively prevented from hooking and/or hanging in an unwanted fashion with their foot strips at functional parts of sh
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patent: 4790249 (1988-12-01), Webb
patent: 5180064 (1993-01-01), Elvin-Jensen
Fritz Schafer Gesellschaft mit beschrankter Haftung
Man-Fu Moy Joseph
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