HU198283B - Method for producing containers or similars and container - Google Patents

Abstract

The invention relates to a container and the like manufacture. The essence of the invention is the container to be manufactured We make a self-supporting frame for the vase, then covered with foam-like body and two sides We produce a wall panel by gluing, where the two sides, steel, aluminum other metal or they can be plastic sheets and wall panels for producing pressure and / or vacuum technology applied to the curing of the adhesive, then wall panels are attached to the frame from the outside or from the inside, preferably by gluing. The characteristics of the process container are that * has a frame made of profile strips and for its internal surfaces there are wall panels fixed. The wall panel is plastic foam body (5) and metal plates covering them from two sides (9,10), and foam bodies (5) and sheets (9, 10) are bonded together, s thus form a panel. Foam Foam Body (5) from portions of foams of different densities: from the edges (13, 14) and the crossbar (15) (2-3). Figures).

Description

The so-called. the size and design of containers and their means of transport are more or less internationally standardized. This means that every effort is made to reduce the heat loss of such containers (when transporting frozen goods), to increase the volume of the recipient, to reduce the weight of the container, and to reduce the cost of production so that the container meets the standard.

To meet the requirement to reduce heat loss, it has been suggested that wall panels or doors be made of an outer and inner sheet of steel for containers, the space between which is filled with plastic foam. However, this results in a high weight, since the steel sheets must be self-supporting, which results in a significant thickness.

The object of the present invention is to solve the problems raised and to develop a new process for the manufacture of containers. SUMMARY OF THE INVENTION It is an object of the present invention to pre-fabricate a self-supporting frame forming a container skeleton by forming an adhesive panel made of a foam body and a sheet covering it on both sides, steel, aluminum or other metal or sheet metal. plastic sheets. Preferably, the panels and the frame are joined together by gluing.

Wall panels may be manufactured by applying pressure and / or vacuum techniques.

When bonding panels and the frame, rivets may also be used for gluing and pressing, which are located in the openings of the wall panels and penetrate through the opening of the profile forming the frame.

The invention further relates to a container which consists in that the wall panels consist of a foam body made of plastic and a metal sheet covering them on both sides, and in that the container has a prefabricated frame consisting of profiled strips to which the wall panels are attached externally or internally.

The invention will be described in detail with reference to the drawings, in which:

Figure 1 illustrates a container frame according to the invention. THE

Figure 2 illustrates a method of manufacturing a wall panel of a container according to the invention. THE

Figure 3 is a sectional view of a combined plastic foam panel, a

Figure 4 is a perspective, partially sectional view of a container panel, on a larger scale. The

Figure 5 is a longitudinal sectional view of the container while Figure

Figure 6 is a sectional view of the container profile with the wall panel on a larger scale, whereas

Figure 7 is a bottom view of the container.

In the manufacture of a container according to the invention, the frame structure of the container must first be assembled. The schematic drawing of Figure 1 shows that the container frame is made up of 1,2,3 profile strips. The profile strips 1,2,3 are connected to the corner elements 4, which of course are of a profile to suit other elements of the container, such as the laths. wall, doors, etc. Doors and other doors and windows are not illustrated in the drawings as they are not part of the invention. The frame structure is self-supporting.

The wall panels to be used for the container according to the invention are shown in Fig. 2 as follows: The foam body 5 has a longitudinal groove 6 on two opposing sides 7,8 on the sheet. Adhesive is applied to the sides of said grooves. Two aluminum sheets 9,10 are then placed and moved in the direction of arrow 11,12 toward the sides 7,8. By further pressing, the aluminum 9,10 grates are brought into contact with the foam body 5 and the adhesive secures them there. The excess glue is discharged through the grooves 6.

After curing, the wall panel is placed in the frame as follows: The wall panel is very strong and the interplay of materials gives the panel the ultimate rigidity and therefore no self-supporting panels are required. Of course, the sheets of 9,10 may be steel sheets instead of aluminum, but other materials, such as steel, may be used. plastic. It is also possible to use different sheets to meet different needs at the same time.

As shown in Figure 3, the body 5 can be made of different foam materials to reduce heat conduction through the wall. Preferably, the outer part of the body 5 may have longitudinal edges 13,14 with high specific weight foam material and further cross bars 15 made of the same material. The space formed by the moldings 13, 14 and the cross-bars 15 is filled with foam material 16, which has a significantly lower specific gravity. The material densities of the 13.14 moldings and the crossbars 15 are 100 kg / m ³ , while the foam 16 has a material density of about 70 kg / m ³ . The moldings 13, 14 and the crossbars 15 are joined together with the filler foam 16 by gluing together to form the body 5 of FIG.

The panel forming the bottom of the container has a special design with special handling of the container. As shown in Figure 4, the bottom is composed of 17 trapezoidal plates. This trapezoidal sheet 17 forms tunnels 18 with oblique sidewalls. From the inside, the trapezoidal bottoms 17 show the same configuration where the recesses are filled with foam bars.

The upper side of the foam rod 19 is aligned with the upper plane of the corrugated portion and thus forms a plane to which the foam body 20 may be glued. The foam body 20 is identical to the foam body 5 of FIG. The trapezoidal plate 17 is welded to a U-shaped member 21, which in turn is connected to the trapezoidal plate 22. The U-shaped member 21, as well as the adjacent trapezoidal plate 17 and the trapezoidal plate 22, are welded together with a stabilizing cross plate 23. The U-shaped member 21 and the transverse panel 23 together form a tunnel as a groove 24 for a fork of a lifting device. The lifting equipment and the fork are not shown. Each side of the U-shaped member 21 has small triangular panel members 25 for stiffening the structure. On each side of the U-shaped member and adjacent portions of the trapezoidal sheet, the recesses are filled with foam rods 26 to provide contact with the foam body 20 overlying them.

At the top of the flat portion of the U-shaped member 21 is a foam sheet 27, the upper surface of which coincides with the upper surface 28 of the foam body. At the top of the surface 28 there are extruded aluminum profiles 29 to 30 profiles. It has an upper surface 31 for carrying loads. Of course, the rails can be placed in any direction, and as shown in Figure 4, there is only an example of the positioning of the rails. The lower surface of the profiles 29 is glued to the upper surface 28 of the foam body 20, as in Fig. 2, the aluminum sheets are glued to the foam body. The whole butt wall panel is self-supporting.

-2198.283

Figure 5 illustrates a sectional view of the entire constructed container and shows how the various wall panels are fixed to the frame structure. The wall panels are secured to the frame from the inside so that they lie on the inside of the profile moldings.

Figure 6 illustrates in detail how the wall panels are glued together and with each other and with each other. connected to the profiles of the frame. In the example shown, each wall panel is connected to the flanges 32, 33 of the profile strip 1. Before the panels are inserted into the profile strips 1, 2, 3, they will be provided with adhesive at the joints, and the edges will also be provided with adhesive. The panels are connected to the profile strips 1, 2, 3 under pressure, i.e. pressure is applied until the adhesive has set. However, it is also possible to use vacuum technology. The interconnected parts should then be encapsulated with an elastic layer and then the enclosed air expelled. The advantage of applying vacuum technology is that the air bubbles are bent out of the interconnected slots, thus ensuring a homogeneous connection.

The easiest way to apply a constant compression force is to use rivets that permanently bond the parts to be joined together. Such a rivet 34 is shown in Figure 6, which penetrates through a flange 32 and is inserted into a cavity 35. Of course, the rivet 34 also penetrates the sheet 9. The rivet 34 is a so-called pop rivet which, after riveting, forms a bump on the inside of the panel 9. The head 37 of the rivet 34 rests on the bottom 38 of the notch 38 of the flange 32. Seals 39 and 40 are used to permanently seal the outer surface of the wall panel.

For a clear view of the overall container design, Figure 7 illustrates a bottom view of the container showing the trapezoidal design.

Of course, the invention is not limited to the exemplary embodiment, but within the scope of the invention, a container design may be realized. According to ISO standards, the container can have a length of 6 ni and a width and height of 2.5 m. Doors, which are usually located on short sides, can be made in the same way as wall panels. Container construction according to the invention enables production much faster than prior art processes.

Claims (7)

PATENT CLAIMS A process for the manufacture of containers and the like, characterized in that the self-supporting frame forming the frame of the container to be manufactured is made by gluing a foam body and a sheet on both sides, said sheets being steel, aluminum or other metal. respectively. Plastic panels may be, and the wall panels for the production of pressure and / or vacuum tech _n where employed is applied to the hardened adhesive, and the wall panels or internally secured to the frame, preferably by gluing. The method according to claim 1, characterized in that, during the connection of the wall panels and the frame, 15 rivets are used which are inserted into the openings in the wall panel so that they pass through the opening of the composite profile. Container made by the process of claim 1 or 2, having a profile frame vnn and having wall panels mounted on its inner surfaces, characterized in that the wall panels are made of a plastic foam body (5) and a metal sheet covering them on two sides. 9, 10), and the foam bodies (5) and the sheets (9,10) are bonded together to form a self-supporting panel, and the foam body (5) consists of portions made of foams of various densities 25 and of higher density. it has ledges (13,14) and crosses (15). Container according to claim 3, characterized in that the bottom panel consists of a trapezoidal sheet (17) which forms the outer side thereof and the recesses of the trapezoidal sheet are filled with foam material (19), thereby providing an inner surface suitable for gluing. at stake. Container according to any one of claims 3 or 4, characterized in that the bottom panel has rails (30), in particular on the inner foam surface (28). 6. Container according to any one of claims 1 to 3, characterized in that the metal frame of the profile strips (1,2,3) is welded at the corners, while the wall panels are glued to the profile strips (1,2,3) and the bottom frame The profiles 40 are adapted to the bottom panel trapezoidal plate (17). Container according to any one of claims 3 to 6, characterized in that the foam material of the moldings (13, 14) and the cross-bars (15) has a density of 100 kg / m ³ , whereas the filling foam material (16) 70 45 kg / m ³ .