CROSS-REFERENCE TO RELATED APPLICATIONS

This patent application claims priority to German utility patent application number 20 2019 105 203.1 filed Sep. 19, 2019 and titled “Insert Container For A Shipment Carrier”. The subject matter of patent application number 20 2019 105 203.1 is hereby incorporated by reference in its entirety.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable.

INCORPORATION BY REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC

Not Applicable.

BACKGROUND

Shipment carriers are known, for example, in the form of small item carriers or as boxes, barrels, trays or skeleton containers into which an insert container made of foamed plastics is inserted.

Insert containers of this generic type are preferably made of a particle foam, such as in particular expanded polypropylene (EPP). This material is characterized by a low density and, in this connection, by hence easily producible light-weight components. Expanded polypropylene (EPP) also has the advantage of exhibiting good thermal insulation properties, so that the use of transport containers produced therefrom for the transport of temperature-sensitive goods, for example in the form of cooling boxes, is widespread.

With conventional transport boxes, for example for wholesalers, it is known to provide a carrier in the form of a logistics container into which a heat-insulating insert container is inserted. The insert container consists of a layer of vacuum insulation panel surrounded by a particle foam, such as in particular expanded polypropylene (EPP). Due to the high requirements placed on robustness during transport of the container, special properties are required regarding the foamed material. For this purpose, is known that in the production of a particle foam, such as in particular expanded polypropylene (EPP), the wall thicknesses should be dimensioned to measure 4 cm or more in order to attain sufficient strength for the foamed material.

Conventional transport boxes are known in the prior art from U.S. Pat. No. 10,329,074 B2 and WO 2014/118 821 A1.

A disadvantage of insert containers produced in this way is that the foamed insert takes up a large volume. Especially when vacuum insulation panels are used in the production of insert containers, the advantage of thin wall thicknesses with simultaneously excellent insulation properties is achieved, so that, in connection with insert containers of this generic type, as few particle foam as possible, such as in particular expanded polypropylene (EPP), should desirably contribute to the wall thickness, because in this way overall thin thicknesses can be realized.

SUMMARY

The present invention relates to insert containers for a shipment carrier according to the independent claim.

It is the object of the invention to provide an insert container for a shipment carrier which overcomes the disadvantages of prior art and which specifically enables a maximum reception volume.

The object is accomplished by an insert container for a shipment carrier according to the independent claim. Advantageous embodiments are the subject-matter of the respective subclaims.

The invention encompasses an insert container for a shipment carrier. The insert container comprises at least one side wall (preferably four side walls) and/or a bottom. The at least one side wall and the bottom enclose a receiving space (for the items to be transported) which can be closed with a lid. The at least one side wall and/or the bottom have a multilayer wall structure comprising at least one layer of at least one vacuum insulation panel (respectively areal vacuum insulation element of corresponding geometry) and at least one layer of a particle foam, such as in particular expanded polypropylene (EPP). The layer of a particle foam, such as in particular expanded polypropylene (EPP), is formed at each point with a thickness in the range of 2 mm to 12 mm.

The outstanding feature of the invention is the low thickness in the surface. Due to the reduced thickness of the layer of a particle foam, such as in particular expanded polypropylene (EPP), compared to prior art, an insert container for a shipment carrier can be provided, in which the total wall thickness is reduced and the reception volume is correspondingly larger. This makes it also possible to realize a favorable weight reduction.

