Transport container
The present invention relates to a transport container which provides mechanical and thermal stability for a load and which container is fabricated as the container is loaded. In particular, the present invention relates to a container which can be readily transported on aircraft, such as an aircraft container. In the field of logistics, that is the field of movement and supply of produce and materials, in particular in the transport of intermediate and finished products, containers have been developed which safely protect from physical damage a wide variety of product. Food and pharmaceutical products not only need protection from physical shock and pressures but also require temperature stability during transportation; otherwise goods can be damaged and be unusable, whether such damage is apparent or not. However, air transport poses a particular problem: Goods can be transported in tropical heat, packaged and placed upon pallets and the like containers whereby they are presented in aircraft style containers. Such goods may be left on runways at extreme temperatures (+40° C.) and then placed within a hold where low pressures and low temperatures exist during flight. At a destination airport the temperatures may well be sub-zero. To simplify transport with respect to airports, planes and handling equipment, there have been developed aircraft Unit Load Devices (ULDs) which comprise any type of pallet or container that can easily be loaded to the aircraft by a ground handler. The present invention seeks to provide a transport container which can maintain goods within a narrow temperature range, can displace a considerably reduced volume before erection, is economical to manufacture, can readily and easily be constructed. The present invention further seeks to provide a transport container which is compatible with standard Unit Load Device specifications.
1. A thermally insulating collapsible cargo container, the cargo container comprising:
a plurality of thermally insulating rectangular panels, each panel having a first and second, inner and outer major planar surfaces and four circumferential edges;
wherein a first panel and a second panel, each drawn from the plurality of thermally insulating rectangular panels, are physically arranged adjacent to each other along a mating edge comprising one of the circumferential edges of each of the panels;
wherein the first and second panels are interlocked along the mating edge, a major planar surface of the first panel being engaged perpendicularly with respect to a major planar surface of the second panel, along the mating edge;
wherein a mating edge portion of the first panel comprises one of the circumferential edges of the first panel, and defines a rebate in conjunction with a member of the second panel, forming an L-shape member whereby the first and second panels are interlocked, the L-shape member having a generally L-shaped cross section, a first arm of the L-shape member being attached to a major planar surface of the first panel, a second arm of the L-shape member opposing an edge face of the first panel;
wherein a mating interface edge portion of the second panel comprises at least a portion of a major planar surface of the second panel, and defines a rectilinear edge of the second panel such that each second panel mating interface edge portion is resiliently retained within the rebate of the associated first panel mating edge portion with the second arm of the L-shape member acting upon an outside surface of the second panel;
wherein resiliently retaining the second panel mating interface edge portion within the rebate of the associated first panel mating edge portion prevents air passage between an inside and an outside of the thermally insulated collapsible cargo container; and
wherein an internal angle of the L-shape member is less than 90°, the second arm of the L-shape member acting upon a major planar surface of the second panel to resiliently retain the second panel without using a fastener to attach the second panel to the first panel; and
wherein resiliently retaining the second panel of each of the plurality of pairs of panels render the container easily collapsible and reusable.
2. The cargo container according to claim 1 , wherein the container comprises at least one panel that corresponds to a base and at least one panel that corresponds to an upstanding wall panel.
3. The cargo container according to claim 2 , wherein the container further comprises one or more insulating cover panels.
4. The cargo container according to claim 3 , wherein one or more cover panels can be resiliently retained with respect to the upstanding wall panel.
5. The cargo container according to claim 1 , wherein the L-shape member is made from a material selected from the group comprising: wood pulp, polypropylene, aluminum, glass fiber, resin and carbon fiber.
6. The cargo container according to claim 1 , wherein the L-shape member is attached by adhesive to the first panel.
7. The cargo container according to claim 1 , wherein the thermally insulating panels are fabricated from one or more types of panel including extruded polystyrene, polyurethane foam, expanded polystyrene, cardboard, laminated polyurethane foam and laminated expanded polystyrene.
8. The cargo container according to claim 1 , wherein the thermally insulating panels are laminated comprising an outer laminate and an inner laminate; wherein the outer laminate is selected from one or more materials of the group comprising: card, plywood, polypropylene, aluminum and steel.
9. The cargo container according to claim 1 , wherein the mating edge portion of the first panel is stepped, wherein the mating edge portion of the second panel abuts against a portion of the step.
10. The cargo container according to claim 8 , wherein the L-shape member is attached by adhesive to the thermally insulating panel.
11. The cargo container according to claim 1 ; wherein one or more of the plurality of thermally insulating panels of the container comprises two or more subpanels arranged coplanarly in a single spatial plane relative to one another forming a composite panel.