DE20311166U1 - Cool box, comprises a lining made from a deep-drawn or injection-molded plastic sheet, filled with foam particles using commercially available foam injection machine - Google Patents

Abstract

Cool box has a lining made from deep-drawn or injection-molded plastic sheet. This is filled with foam particles using a commercially available foam injection machine.

Description

Applicant :

18.07.03

Schlaadt Plastics GmbH

Schwalbacher Strasse 123

65391 Lorch/Rhine

Thermobox for storage and transport of goods requiring protection

The invention relates to a thermal box for the storage and transport of goods requiring protection made of foamed particle foam plastic, the container of which can be closed by a lockable and detachable lid part.

Such thermal boxes made of foamed particle foams, in particular of expandable polystyrene or expanded polypropylene, are known. Such thermal boxes are usually two-part, with the actual insulated container being box- or trough-shaped and provided with a loading and removal opening. The insulated container can be closed by a lid part provided with a plug-in or snap-in connection.

Due to the use of foamed particle foams, such thermal boxes have very good thermal insulation properties. It is therefore obvious that they can be used for the transport and storage of thermally sensitive goods, especially food and foodstuffs.

Such thermal boxes made of foamed particle foams have the disadvantage that the surface of the inside of the container has the structure and properties of particle foams. When such thermal boxes are used multiple times, however, great demands are placed on the surface quality, especially of the interior, for reasons of hygiene and cleaning options.

The object of the invention is to design a thermal box in such a way that the surface quality, at least of the interior of the container, is improved.

This task is solved by lining at least the surface of the interior of the container with film or a plastic material similar to the container produced by injection molding. This can be done by back-foaming an inner container made from PP-FoNe using a deep-drawing process, for example, with EPP particles on standard particle foaming machines, so that a thermal box with a conventional external appearance is created. Such a thermal box combines the excellent insulation properties of particle foams with the surface properties of smooth, closed, dense, easy-to-clean, robust, solid and hygienic surfaces of a solid plastic body.

Claims (7)

1. Thermobox for the storage and transport of goods requiring protection made of dimensionally stable, foamed particle foam, in particular expanded polypropylene, with a closing and detachable lid part, characterized in that at least the inner walls are lined with solid plastic material. 2. Thermobox according to claim 1, characterized in that at least the inner wall of the container is lined with solid plastic material. 3. Thermobox according to claim 1-2, characterized in that at least the inside of the lid part is lined with solid plastic. 4. Thermobox according to claims 1-3, characterized in that the lining consists of deep-drawn molded parts. 5. Thermoboxes according to claims 1-4, characterized in that the lining consists of plastic parts manufactured by injection molding. 6. Thermoboxes according to claims 1-5, characterized in that the linings are back-foamed with particle foam. 7. Thermoboxes according to claims 1-6, characterized in that the linings are firmly connected to the particle foam bodies.