DE102006006511A1 - Freight carriers, in particular airfreight carriers - Google Patents

Abstract

It is the primary object of the invention to significantly reduce the empty weight of freight carriers without reducing the permissible payload. This object is achieved in the case of a freight carrier, in particular an air freight carrier, with a base plate 1, an integrated frame 2 and thus connectable securing elements 6 for secure placement of the cargo in that the base plate 1 is a sandwich construction with a cover layer laminate 4, an integrated frame 2 with an enveloping cover layer 5 made of composite material and a supporting core material 3.

Description

The The invention relates to a freight carrier, in particular air freight carrier, with a bottom plate and thus connectable security elements for secured Placement of the freight.

It is a generic carrier for transport of air freight known (WO 035492 A1), which has a bottom, a lid and four wall elements, wherein the wall elements detachable with the bottom and the lid are connected. Cover and bottom come in the folded state one above the other to lie, taking the wall elements between them.

Of the known airfreight carrier solves accordingly in particular the problem, the required storage space in the empty transport quickly and reliable substantially opposite to reduce the space requirement with filled carrier.

Of the mentioned prior art is not concerned with the particular in aviation important problem of weight saving while maintaining each to be considered stability of the carrier. It is also not about reducing the susceptibility to damage, for ease of repair or longer life. Here sets Now the object of the invention.

to solution this object is provided in a generic freight carrier, that the bottom plate a single or multi-part sandwich construction is equipped with a top layer laminate, an integrated frame with an enveloping one Covering layer of composite material and a supporting core material. This Construction of bottom plate and frame results in high strength a relative low weight of the carrier.

Further important features of the invention are mainly the subject of the following under claims and the description.

It shows

1 a bottom plate provided with an integrated frame;

2 an embodiment with wall elements without balcony-like training and

3 an embodiment with wall elements with balcony-like design.

The carrier according to the invention is a sandwich construction with top layer laminates and an integrated frame 2 with an enveloping cover layer 4 . 5 made of composite materials.

The air cargo carrier has a bottom plate 1 in sandwich construction with top layer laminates and an integrated frame 2 with an enveloping cover layer 4 . 5 made of composite materials. The bottom plate may be formed in several parts. Depending on the particular requirement profile, different foams of crosslinked or thermoplastic plastics, preferably polyurethane, polyvinyl chloride, polyimide or so-called honeycombs or tubes, preferably of thermoplastic plastics or paper or metal, are used as the core material. The cover layer laminates consist of various fibers or fiber combinations (preferably carbon, aramid, glass, polyester, polyethylene) and matrix systems (curable molding compositions preferably based on epoxy, polyester, vinyl ester, polyurethane, phenol or thermoplastics, preferably polyamide, Polypropylene, polyethylene).

When reinforcing material it is preferred to use fabrics of said fiber materials, However, if necessary, locally with, for example, unidirectional or multidirectional opportunities.

The matrix materials mentioned substances are added, they in the Make the meaning of existing regulations flame retardant.

The bottom plate 1 with the integrated frame 2 can be used both as a carrier floor and as a pallet. Depending on this, the integrated frame profile is executed. In the first case, special fasteners are connected to the frame profile. If used as a pallet, it may be necessary, if necessary using suitable inserts, to attach nets to NAS 3610 safety elements 6 provided.

The topcoat laminate 4 . 5 is formed using fibers or fiber combinations and preferably comprises carbon and / or aramid and / or glass and / or polyester and / or polyethylene.

The Fibers or fiber combinations are preferred in a matrix system made from epoxy-polyester-vinylesther, polyurethane or phenol-based or from Thermoplastics, preferably of polyamide, polypropylene or polyethylene embedded. The core material consists of foams or is honeycomb or in the form of tubes, For example, made of paper, plastic or metal.

Of the Air freight carrier has in such an execution at least six items.

Depending on the version of the air freight carrier consists of the ceiling element 10 either from a thin sandwich construction, with those that may be for the bottom plate 1 is used, is comparable, or made of a thin-walled highly flexible laminate, like the cover layers 4 . 5 the sandwich constructions, of various fiber combinations (preferably coal, aramid, glass, polyethylene) and matrix systems (curable molding compositions preferably on epoxy, polyester, vinyl ester, polyurethane-based) consists. Also in the ceiling element part special fasteners are integrated in the detachable form.

The wall elements of the cargo carrier exist in two variants, namely in a planar shape with the elements 7 . 7a . 8th . 9 and in a balcony-like formation with the elements 7 . 8th . 9 . 11 . 11a that as "balcony" 11 . 11a be designated. By any combination of these two variants of the carrier can be adapted in shape and size to the space conditions of different aircraft, the beveled balcony variant 11 . 11a in the aircraft on the aircraft wall, at the curvature of which it is substantially adapted, is arranged. By these two variants of the side part of the cargo carrier according to the invention of the aircraft size can be adjusted. That is to say, in the case of an aircraft with a width such that a freight carrier can be transported on one side of the aircraft and another on the opposite side of the aircraft, each of the two consists of side parts. In the case of large aircraft in which there is still space for a freight carrier in the middle between two cargo carriers on the walls of the aircraft, a suitable block-shaped freight carrier can be assembled by using only two flat side parts. For smaller aircraft, where only one carrier has space between the aircraft walls, on the other hand, a cargo carrier with two balcony parts can be assembled.

The side parts consist of a thin-walled, highly flexible laminate which, like the cover layer of the sandwich constructions, consists of different fiber combinations (preferably carbon, aramid, glass, polyethylene) and matrix systems (curable molding compounds preferably based on epoxy, polyester, vinyl ester, polyurethane). Base). Also in the wall elements are in the releasable form special security elements 6 integrated. The thin-walled highly flexible laminates have a high strength and a high ductility and thus a pronounced energy absorption capacity, whereby the vulnerability to damage by z. B. the tines of a forklift compared to conventional load carriers made of aluminum is significantly reduced. Should it nevertheless come to a damage, the molding can either easily replaced or repaired by simple means quickly.

The rear wall of the carrier is directly comparable with the wall elements from the material selection point of view. The same applies mutatis mutandis to the front Freight carrier wall, if the variant "solid Door "is provided. As opening and shutter mechanisms are preferably standard components integrated. In the "flexible door" variant exists the door made of a flexible plastic-coated fabric and preferably has Standard components for sealing.

When reinforcing material are preferably woven from the fiber materials mentioned several times used, however, if necessary, locally with, for example unidirectional or multidimensional opportunities.

The called matrix substances substances are added, they in the sense existing regulations, eg. B. JAR 25, make it flame retardant.

The bottom plate 1 with integrated frame 2 overall represents in the basic embodiment of the invention in the manner of a pallet.

The Topcoat laminate is using fibers or fiber combinations formed and has coal and / or aramid and / or glass and / or Polyester and / or polyethylene.

The Fibers or fiber combinations are in a matrix system of epoxy-polyester-vinylesther, polyurethane or phenol-based or of thermoplastics, preferably of polyamide, Embedded in polypropylene or polyethylene. The core material consists of Foam or is honeycomb, z. B. made of paper.

At the frame 2 are wall elements 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a set by a ceiling element 10 are covered. The wall elements and the ceiling element are connected together at their edges and form a receiving space 12 for freight. At least one of the wall elements can be adapted in its outer contour to the inner wall course in the cargo hold of an aircraft. In this case, one of the four wall areas can be closed by a curtain, a blind or a door.

to Facilitating loading and unloading may be important the carrier forklifts capable train.

The wall elements 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a and the ceiling element 10 are stuck together or releasably connected. For a solid, permanent connection is in particular a riveting or gluing.

The wall elements 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a and the bottom plate 1 , which can each be designed in several parts, and the frame 1 are connected to each other firmly or detachably. For a solid, permanent connection is here in particular a riveting or gluing.

1

baseplate

2

frame

3

nuclear material

4

topcoat

5

topcoat

6

fuse element

7

wall element

7a

wall element

8th

wall element

9a

wall element

10

ceiling element

11

wall element

11a

balcony

Claims (18)

Carriers, in particular airfreight carriers, with a base plate ( 1 ) and thus connectable security elements for secure placement of the cargo, characterized in that the bottom plate ( 1 ) is a one-part or multi-part formed sandwich construction with a cover layer laminate ( 4 ), an integrated framework ( 2 ) with an enveloping cover layer ( 5 ) of composite material and a supporting core material ( 3 ). Cargo carrier according to claim 1, characterized in that the cover layer laminate ( 4 . 5 ) is formed using fibers or fiber combinations. Cargo carrier according to claim 2, characterized in that the cover layer laminate ( 4 . 5 ) Has carbon and / or aramid and / or glass and / or polyester and / or polyethylene fibers. cargo carrier according to one of the preceding claims, characterized that the fibers or fiber combinations in a matrix system Epoxy, polyester, vinyl ester, polyurethane or phenolic resin base or of thermoplastics, preferably of polyamide, polypropylene or polyethylene, are embedded. Cargo carrier according to one of the preceding claims, characterized in that the core material ( 3 ) is formed from foams or honeycomb or from tubes. Cargo carrier according to one of the preceding claims, characterized in that on the frame ( 2 ) Security elements ( 6 ) are provided for the establishment of at least one throw-over net. Cargo carrier according to one of the preceding claims, characterized in that on the frame ( 2 ) Wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) defined by a ceiling element ( 10 ) and that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the ceiling element ( 10 ) are connected together at their edges and a receiving space ( 12 ) for freight. Cargo carrier according to one of the preceding claims, characterized in that at least one of the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) is freely positionable in the cargo hold of an aircraft. Cargo carrier according to one of claims 1 to 7, characterized in that at least one of the wall elements ( 7 . 8th . 9 . 11 . 11a ) formed in its outer contour balcony-like and thus adapted to the inner wall course in the hold of an aircraft. cargo carrier according to one of the preceding claims, characterized that at least one of the four wall areas through a curtain closable is. cargo carrier according to one of the preceding claims, characterized at least one of the four wall areas can be closed by a Venetian blind. cargo carrier according to one of the preceding claims, characterized that at least one of the four wall portions formed as a door is. cargo carrier according to one of the preceding claims, characterized that he is forkliftable is. Cargo carrier according to one of the preceding claims, characterized in that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the ceiling element ( 10 ) are detachably connected to each other at their edges. Cargo carrier according to one of claims 1 to 12, characterized in that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the ceiling ment ( 10 ) are riveted or glued together at their edges. Cargo carrier according to one of claims 1 to 14, characterized in that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the ceiling element are formed from a cover laminate using fibers or fiber combinations. Cargo carrier according to one of the preceding claims, characterized in that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the frame ( 2 ) are releasably connected to each other. Cargo carrier according to one of the preceding claims, characterized in that the wall elements ( 7 . 7a . 8th . 9 ; 7 . 8th . 9 . 11 . 11a ) and the frame ( 2 ) are riveted or glued together.