BE1010111A7 - Isothermal box packaging system, with independent and interlockable walls - Google Patents

Abstract

A box constituted by a parallelepiped casing containing six fully interlockable walls or panels constituting an isothermal enclosure. These panels are placed on the internal surface of the casing. These panels are characterised in that they are shaped in such a way that they form a stable enclosure with a highly resistant structure. The profile of the panels is bracket or bevel shaped over the periphery of each of the six walls allowing them to interlock with each other. This box is intended for the packaging of heat- or cold-sensitive foodstuffs during their transportation.<IMAGE>

Description

       

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  The object of the present invention is an isothermal box intended for the transport of perishable foodstuffs in small quantities, of volume up to approximately 200 liters.



  The packaging currently used is usually insulated boxes manufactured by molding polystyrene or polyurethane foams by injecting one or more components into molds. The packaging boxes thus produced therefore have continuous insulating walls without rupture. They therefore consist of a body and a cover.



  The boxes thus produced, of cubic or parallelepipedal shapes have continuous walls describing fixed and non-deformable volumes.



  These insulated boxes generally have wall thicknesses ranging from 2 to 5 cm for the insulated boxes made with polyurethane foam and up to 10 cm for boxes made with polystyrene.



  In general, these boxes are not foldable. This implies great storage costs. On the other hand, the boxes are not easily recyclable due to the high costs of returning the boxes to the manufacturer of the products. Description of the invention The insulated box with insulating walls, independent and nestable , which is the subject of the present invention consists of 6 independent insulating faces or walls, which can be assembled to form an insulated box. The box is assembled in a packaging, playing the role of external envelope, whose internal dimensions are equal to the external dimensions of the box This external envelope can be made of cardboard, synthetic material or wood We prefer the American cardboard box which is foldable.



  The perimeter of each insulating wall is profiled in a "chair" in the half thickness of the wall. This has the effect of a perfect nesting of 2 adjoining walls.

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  Principle of assembly.



  First open the American box and close the bottom with an adhesive strip or with staples.



  Then, the first profiled wall is introduced into the bottom of the American body. There is therefore a notch on the periphery of the bottom of the box which will thus be able to receive 4 other profiled isothermal walls. The five walls thus assembled form the body of the box; the precision of cutting of insulating panels makes it possible to obtain perfectly nestable walls.



  The whole is then closed with a sixth insulated wall. The six insulated faces or walls thus constitute a completely insulated parallelepiped assembly Complementary device allowing pressure regulation inside the insulated box The insulated box makes it possible to keep perishable foodstuffs within a temperature range using a generator cold can be electrical or physicochemical In the case of a physicochemical generator, dry ice type, the isothermal box can be equipped with a valve fixed on one of the walls, making escape the C02 during use.



   Advantages of the insulated box The insulated box of the present invention allows a significant reduction in the storage volume of the packaging of companies which manufacture foodstuffs sensitive to temperature variations during their transport or of foodstuffs which must be transported under determined temperature conditions with cold generators.



  These generators can be electrical or physicochemical It also allows savings in transport costs, since it can be delivered unassembled The overall volume transported can be up to four times less The box being with independent nestable walls can also be used by the end customer to reconstruct insulating panels for construction


    

Claims (6)

Claims. Claim 1 Isothermal box, with insulating foam, in the shape of a parallelepiped, with independent walls which can be assembled for the transport of foodstuffs sensitive to heat. Claim 2 Box whose insulating walls or faces are profiled at their ends in the form of a "chair" or "staircase" Claim 3 Box whose insulating walls or faces are profiled at their ends in the form of a bevel at 45 Claim 4 Isothermal box made up of 6 insulating plane walls and an external envelope. Claim 5 The outer envelope is made up of a box made of cardboard, or plastic, or wood or metal, foldable or not Claim 6 Insulated box with insulating walls, independent, assembled and provided with one or more valves allowing the escape of gas generated during the transport of perishable foodstuffs