THERMALLY INSULATING CONTAINER

Description

[0001] The invention relates to a heat-insulating container for the transport and storage of objects, wherein the insulating container a weight-bearing outer shell with at least three side shell walls and a bottom shell wall, and a thermally insulating insert which is arranged in the outer shell, wherein the insert has at least three, preferably four, side walls which are at least partially arranged on the side shell walls of the outer shell, and wherein the insert has at least one bottom wall and one top wall and the bottom wall is arranged on the bottom shell wall of the outer shell, and the top wall is arranged opposite the bottom wall.

[0002] The invention also relates to a method for manufacturing a thermally insulating insert.

[0003] Insulated containers of this type are used, for example, for the transport, temporary storage, or collection of deliveries of thermally sensitive goods, such as medications or food, both in commercial and domestic settings. They must provide sufficient thermal insulation of the interior(s) of the container from its surroundings to keep the goods inside warm or cool for a sufficient duration. Additionally, active or passive heating or cooling elements can be integrated into the insulated container, which may have dedicated compartments or spaces for this purpose.

[0004] Often, such containers are only used a few times or even just once before being disposed of. Therefore, it is crucial that they are as environmentally friendly, recyclable, and resource-efficient as possible. At the same time, it is also essential that they are easy to produce to keep costs as low as possible.

[0005] US patent 2018 / 0290813 A1 discloses an insulated container with a thermally insulating liner, which is inserted into an outer shell designed to support the weight of the contents. The liner consists of several filled wall elements bonded together. This provides sufficient thermal insulation but is quite complex in its construction, as the wall elements must first be manufactured and then joined together in a subsequent step. This results in high manufacturing costs.

[0006] DE 10 2011 016 500 A1 discloses an alternative embodiment of an insulated container, which has an outer shell without an insert, wherein the outer shell is both weight-bearing and thermally insulating. Its shell is filled with a cellulose material and then stitched to form the individual walls. Despite the simpler construction, this is still more complex to manufacture, as it requires complex cutouts of the shell sections, which are filled and then stitched. A very wide starting material for the shell sections must therefore be used in a production line, which is then cut to form the individual tabs for the bottom and top shell walls, which are integrally connected to the side shell walls. Furthermore, the complex cutting process increases the amount of waste, which is not very resource-efficient. In addition, production costs are also high in this case.

[0007] EP 3 381 830 A1 discloses a design as described above, wherein the insert consists of several filled bags sewn together. This construction is quite labor-intensive and can lead to weak points in the insulation along the sewn edges.

[0008] The object of the invention is therefore to provide an insulating container and a method for producing a thermally insulating insert that is as environmentally friendly and cost-effective to produce as possible.

[0009] This problem is achieved according to the invention by the fact that the side walls of the insert have a common tubular bag, that the side walls are at least partially separated from each other by quilted seams in the tubular bag, that the tubular bag is filled with an insulating material, and that the bottom wall and the top wall are separated from the tubular bag of the side walls.

[0010] The invention is also solved by closing a sleeve of the tubular bag except for an opening, loosening an insulating material and inserting it into a sleeve of the tubular bag through the opening, and closing the opening, wherein the tubular bag is divided into at least three, preferably four, side walls after filling by quilting the tubular bag so that quilted seams are created which at least partially separate the side walls from each other, and wherein a bottom wall and a top wall of the insert are manufactured separately from the tubular bag, or are separated from the tubular bag after filling.

[0011] The shared tubular bag enables highly efficient production and subsequent assembly, as such bags can be easily manufactured sequentially in large numbers on a single tubular bag machine. Since the tubular bag only comprises the side walls and not the bottom and top walls, a simple, linear tubular bag is sufficient to form the side walls. Subsequent trimming of excess material from the sides to create the bottom or top walls is unnecessary, as these parts can be manufactured separately. This saves material and allows for a narrower production line.

[0012] According to the invention, it can also be provided that the individual process steps are carried out in a different order and / or simultaneously, where possible. For example, the insulating material can be inserted before the casing is closed, leaving an opening.

[0013] A tubular bag is a bag with a shell, usually essentially flat, which has a tubular, channel-like shape. After filling, the channel is sealed at both ends. The shell is preferably made in one piece. In its finished state, the shell is essentially sealed so that the insulating material is retained within it. The shell usually has at least two sections that are joined together, or it has one section that is formed into a channel with two openings by a longitudinal seam. One of these openings is sealed by two side seams. Preferably, one side seam is sealed first, the tubular bag is then filled through the remaining opening, and then the second side seam is sealed. Particularly in a flat design, the shell can have two flat sections arranged one above the other.In this way, a jacket bag can first be formed during manufacturing, which is then filled and subsequently sealed.

[0014] The fact that the bottom and top walls of the tubular bag are separate means that neither the bottom nor the top wall is part of the tubular bag. They are therefore not made from the same shell or shell section of the tubular bag. Preferably, the bottom and / or top wall can be subsequently, at least partially, connected to the side walls, for example, by an adhesive bond, by connecting elements such as tabs or cords, or by a zipper or hook-and-loop fastener system.

[0015] After stitching, the tubular bag can be folded so that the two outermost side walls are brought together, forming a tunnel-like structure that encloses an interior space, leaving essentially two openings. Goods can then be placed inside this interior space.

[0016] The bottom and / or top wall can also have tubular pouches, which are independent of the tubular pouches of the side walls. This makes them very easy to produce. During assembly, the folded side walls are preferably positioned first inside the outer shell against its side walls. Then, the bottom wall is pressed past the side walls to the bottom of the outer shell, and finally, the top wall is placed on top. Preferably, the bottom wall is slightly larger than or equal to the cross-section of the channel formed by the side walls, and / or the top wall is slightly larger than or equal to the cross-section of the channel. This ensures that the bottom wall, due to its restoring forces, conforms to the side walls and forms a tight seal without creating thermal bridges.This ensures that the interior, formed by the side walls, floor wall and top wall, is thermally protected from all sides.

[0017] This very simple manufacturing process, combined with its quick and easy assembly, is both resource-saving and cost-efficient. The cellulose fiber filling ensures that, on the one hand, a cost-effective, sustainable, and biological material is used, and on the other hand, that excellent insulation performance is achieved to maintain a sufficiently stable temperature difference. Cellulose fibers can be produced, for example, from old and / or recycled paper or cardboard.

[0018] Quilting the sidewalls is particularly advantageous because it is very simple and quick to perform mechanically. Quilting refers to a separation of the sidewalls, where the opposing sections of the casing are connected to each other in a force-transmitting manner, thus preventing the insulation material from flowing at the transition from one sidewall to the next. Preferably, the opposing sections of the casing lie directly against each other, resulting in a lower density of the tubular bag in the quilted area. The quilting can be created by welding, embossing, and / or compression. If the quilting is achieved by sewing with thread, a biodegradable, biological material can be used.

[0019] This ensures that the entire insert becomes biodegradable. Additionally, the quilting prevents uneven distribution of the insulating material and makes folding the tubular bag easier.

[0020] The insulated container is usually prismatic, more often rectangular, meaning it has four side walls and preferably also four side walls.

[0021] The bottom shell wall is preferably permanently connected to the side shell walls. Particularly preferably, the bottom shell wall is formed at least partially from tabs which are connected to the side shell walls.

[0022] The shape, quantity, and / or design of the side walls preferably corresponds to that of the side casing walls. This allows for optimal use of the space within the outer casing and minimizes wasted space between the outer casing and the insert. The shape and / or design of the bottom wall preferably corresponds to that of the bottom casing wall, and / or the shape and / or design of the lid wall preferably corresponds to that of the lid casing wall.

[0023] Preferably, at least one quilted seam separates at least one side wall from another. Multiple quilted seams may also be arranged between two adjacent side walls. Preferably, at least one quilted seam extends from one longitudinal side of the tubular bag to the opposite longitudinal side.

[0024] Preferably, the side walls abut the side shell walls. Preferably, the bottom wall abuts the bottom shell wall. It is also possible for these elements to be operationally separable or permanently connected, for example by plug-in or folding connections, or by gluing or welding.

[0025] The side walls are usually arranged next to each other, thus enclosing an interior space which usually has two openings that can be closed by the top wall and bottom wall.

[0026] "Opposite to the bottom wall" means that the top wall is located on the opposite side of the side walls from the bottom wall. This allows the bottom wall and top wall to close two opposing openings at the ends of the side walls.

[0027] Preferably, the quilted seams separating the side walls are designed to serve as fold lines for the tubular bag. This allows the tubular bag to be folded directly along the quilted seams. The quilted seams thus form the edges between the side walls. This facilitates easy folding immediately after quilting and speeds up assembly. They therefore fulfill a dual function by preventing the insulation material from shifting and simultaneously aiding in assembly.

[0028] It is advantageous if the tubular bag has a jacket with a jacket section having a longitudinal seam that preferably extends along all side walls and two side seams that are essentially perpendicular to the longitudinal seam. The seam is preferably welded, but can also be glued, pressed and / or sewn.

[0029] Furthermore, it may be provided that the tubular bag has a jacket with an inner jacket and an outer jacket, which are sewn, glued and / or welded together and / or connected by a folding joint, and that the insulating material is arranged between the inner jacket and outer jacket.

[0030] The casing may be made at least partially of polyethylene, a woven fabric, and / or a material containing cellulose fibers, and preferably comprises a paper layer and a polyethylene layer. Preferably, the polyethylene layer is arranged on the inside of the tubular bag. This allows overlapping sections of the casing, or different casing sections, to be welded together at the polyethylene layer.

[0031] Preferably the paper layer has a thickness between 30 g / m² and 50 g / m², particularly preferably about 40 g / m² and / or the polyethylene layer has a thickness between 5 g / m² and 15 g / m², particularly preferably about 10 g / m².

[0032] Alternatively, the casing can be provided with a layer of fabric and / or cellulose fiber, preferably paper, and it is particularly preferably provided that the casing is essentially made of fabric and / or cellulose fiber, preferably paper. This ensures that the insert is more environmentally friendly and biodegradable.

[0033] If the outer shell is made of cardboard or paper, it is lightweight yet dimensionally stable and suitable for bearing heavier loads, whether these result from the arrangement of goods inside the insulated container or from external forces, such as from above or the side. Preferably, the outer shell is essentially a cardboard box.

[0034] It is particularly advantageous if the tubular bag has additional quilted seams arranged in at least one side wall, and preferably these additional quilted seams at least partially define a pocket for receiving insulating material. This allows for more precise control of the distribution of the insulating material within the side wall and prevents sagging or partial compaction. Simultaneously, at least two different areas within a single side wall can be filled with insulating material of varying properties. It is also possible for at least two side walls to be filled with insulating material of different properties. These properties can be inherent to the material itself, such as different substance mixtures or different thermal properties. Alternatively, they can be different state properties, such as different filling densities.

[0035] In a preferred embodiment, the lid wall is arranged on a lid shell wall of the outer shell, which is preferably formed by tabs of the outer shell. This allows the insulated container to be closed after filling, making it easier to transport and stack. The lid wall does not necessarily have to be in contact with the lid shell wall; it can be designed so that the lid wall is pressed, at least predominantly, between the side walls to achieve the best possible thermal seal.

[0036] It is particularly advantageous if the insert has at least one partition wall that is not part of the tubular bag's side walls and is arranged between the bottom wall and the top wall. This allows different climate zones to be separated within the interior, which is beneficial when transporting or storing goods at different temperatures or humidity levels. Preferably, the partition wall divides the interior into at least two compartments.

[0037] Preferably, the insulating material comprises cellulose fibers. Alternatively, the insulating material can be made of another thermally insulating material, preferably sheep's wool, cotton, or glass wool.

[0038] A simple, cost-effective, and environmentally friendly approach is to use shredded paper and / or shredded cardboard as the insulation material. This allows recycled paper or cardboard, or waste paper or cardboard, to be reused. Preferably, the particles of the shredded paper and / or cardboard have a maximum size of 4.75 mm, with at least 50% being larger than 1 mm, being particularly preferred.

[0039] It is particularly advantageous if the insulation material in the sausage pack has a density between 20 kg / m³ and 60 kg / m³, preferably between 30 kg / m³ and 50 kg / m³, and most preferably approximately 45 kg / m³. This ensures that, on the one hand, little insulation material is used and, on the other hand, sufficiently strong insulation is achieved. It is especially advantageous if the initial density of the insulation material, i.e., the density just before being placed in the sausage pack, is approximately 30 kg / m³.

[0040] Preferably, the insulating material has a first density after loosening and a second density after being placed in the tubular bag, which is higher than the first density. This allows the density in the sealed tubular bag to be precisely adjusted.

[0041] It can be provided that a defined quantity of insulating material is weighed out using a scale, and this quantity is then placed into the tubular bag, with the weighing preferably taking place after the material has been loosened. This is particularly advantageous because it allows the fill level of the tubular bag to be defined and prevents bursting or underfilling.

[0042] It is advantageous if the insulation material is fed to the scale via a conveyor belt and / or if, after weighing, the insulation material is conveyed out of the scale via an openable flap using gravity. The conveyor belt allows for continuous or discontinuous conveyance of the insulation material, again using gravity to convey it onto or into the scale. Unwanted compaction of the insulation material is avoided during conveying by the conveyor belt. Dispensing via a flap is a particularly simple and efficient method of further transporting the insulation material. Especially when the insulation material is fed from the conveyor belt onto or into the scale using gravity and then conveyed out via the flap after weighing, a particularly fast working method can be achieved.

[0043] Furthermore, it is advantageous if the insulation material is introduced into the sausage pack by means of a screw conveyor that is rotatable about a pivot axis and displaceable along this axis, wherein the insulation material is preferably fed to the screw conveyor via a scale, and particularly preferably via a screw conveyor scale. This ensures rapid introduction of the insulation material. Typically, the screw conveyor is rotated and simultaneously retracted, thereby transporting the insulation material forward and filling a space in front of the screw conveyor with insulation material. The screw conveyor is then moved forward, pressing the insulation material from this space into the sausage pack.

[0044] Alternatively, the insulating material can be introduced into the pouch by means of a piston that is movable along a sliding axis, wherein the insulating material is preferably fed to the piston via a scale, particularly preferably via a screw scale. This piston, which is guided in a cylinder, can push the material in the cylinder into the pouch by moving forward and free up space for filling the cylinder by moving backward.

[0045] Preferably, the insulating material is introduced into the pouch using gravity. If a piston is provided as described above, this can be achieved, for example, by having the piston introduce the insulating material into the pouch along a downward movement relative to the ground. For example, the piston can be arranged vertically for this purpose.

[0046] Preferably, the piston is arranged in a transport cylinder along which the insulating material is transported. To remove excess air, the piston can have openings for venting air from the transport cylinder. Accordingly, it can be provided that, during insertion by the movable piston, air is vented from the space in front of the piston through openings in the piston.

[0047] It is particularly advantageous if the insulating material is fed to the piston via a feed piston, which is preferably pneumatic and / or preferably positioned at an angle, particularly preferably an angle between 60° and 120°, most preferably an angle of approximately 90°, to the piston. The angle refers to the angle between the axes of movement of the piston and the feed piston, in each case in the main thrust direction of the piston or feed piston.

[0048] To guide the tubular bag, it can be arranged that, after sealing, the bag is positioned between two conveyor belts and transported by them, leaving an opening. The conveyor belts then gather the bag's outer layer in the area of ​​the opening after filling, and the opening is preferably sealed before the tubular bag leaves the conveyor belts. In this way, the conveyor belt can simultaneously move the tubular bag and assist in the sealing process. The conveyor belts can also transport the tubular bag even before it is sealed.

[0049] In this respect, it is particularly advantageous if the conveying surfaces of the two conveyor belts are oriented towards each other and, before filling the pouch, the conveying surfaces tilt towards the opening and, after filling, point away from the opening. This allows the opening space to expand as much as possible during filling, allowing the insulating material to easily pass through. Afterwards, the conveyor belts gradually compress the opening, allowing it to be easily sealed and any remaining excess air to be expelled.

[0050] It is particularly advantageous if, after the opening is sealed, the tubular bag is guided through a transport channel with two opposing roller conveyors, and the insulation material within the tubular bag is distributed by the rollers of the conveyors, the rollers of the two conveyors preferably being arranged offset from each other. This allows for a particularly uniform distribution of the insulation material without excessive compression.

[0051] The sealing of the tubular bag can be achieved, for example, by welding, embossing and / or compression.

[0052] The invention further comprises a method for manufacturing an insulated container, wherein a weight-bearing outer shell with at least three side shell walls and a bottom shell wall is provided, a tubular bag is produced from a thermally insulating insert according to the described method of the invention, the tubular bag is folded so that the side walls form a channel, and wherein a bottom wall of the thermally insulating insert and the tubular bag are inserted into the outer shell, such that the bottom wall is arranged against the bottom shell wall and the side walls against the side shell walls, and wherein the channel is closed with a lid wall of the thermally insulating insert. Preferably, the side seams of the tubular bag are brought together, thereby forming a channel or a tube that has two openings.Preferably, the tubular bag is inserted into the outer casing first, followed by the bottom wall. Alternatively, the bottom wall can be inserted first, followed by the tubular bag.

[0053] The invention will subsequently be explained with reference to non-limiting embodiments shown in the figures. These show: Fig. 1 a top view of a tubular bag of an insulated container according to the invention in a first embodiment; Fig. 2 a detail of a top view of the insulated container in a partially assembled form with the tubular bag made of Fig. 1 .

[0054] Figure 1Figure 1 shows a tubular bag 1 after it has been filled and sealed. It has a outer shell 3, which is folded from a single piece of film. This film piece has a paper layer and a polyethylene layer on the inside. To form a channel or tube, its long sides were overlapped and welded together by a longitudinal seam 4. Subsequently, one of the side openings was closed by a side seam 5, again welding the overlapping parts of the film piece together. This forms a bag with only one opening, which can be filled with insulating material into the outer shell 3. This opening is then sealed by another side seam 5. This creates a tubular bag 1 that is essentially sealed to contain the insulating material.

[0055] The side seams 5 are opposite each other and are essentially perpendicular to the longitudinal seam 4. The longitudinal seam 4 extends over the entire length of the coat 3 and the side seams 5 extend over the entire width of the coat 3.

[0056] Tube bag 1 has an essentially flat shape, becoming slightly thicker from its edges towards its center due to the filling. It therefore essentially has a cushion shape.

[0057] After the tubular bag 1 is sealed, it is divided into four side walls 6 by creating three quilted seams through welding the overlapping sections of the outer shell 2. This results in three separate compartments being formed from the single compartment filled with insulating material, separated by the longitudinal seam 4, the side seams 5, and the quilted seams 7. Each of these compartments also features a cushioned shape.

[0058] Along the quilting seams 7, the tube bag 1 is thinner than in the area between the quilting seams 7 or between quilting seam 7 and side seam 5.

[0059] The tubular bag 1 has no connection to a bottom wall or lid wall.

[0060] In Fig. 2 An insulated container according to the invention is shown in detail during assembly. An outer shell 2 is provided on cardboard, the bottom wall of which is folded from flaps of the cardboard. A bottom wall 8 of the insert is arranged on the bottom wall of the outer shell, which is also designed as a tubular bag similar to that of the side walls, but without any subdivisions. The side walls 6 of the tubular bag 1 are attached to the side walls 9 of the outer shell 2, adjoining and essentially parallel to them. Figure 1The ends of the tubular bag 1, where the side seams are located, were brought together, so that the tubular bag 1 forms a channel 10 with a square cross-section. The quilted seams 7 serve as fold lines along which the tubular bag 1 automatically folds, thus creating a predefined shape.

[0061] The size and outer contour of the tubular bag 1 are matched to the size and inner contour of the outer sleeve 2. This ensures that the side walls 6 lie flush against the side walls 9 of the outer sleeve, maximizing storage space inside the tubular bag 1. The ends of the tubular bag 1 are not connected to each other but are held together by the matched sizes of the liner and the outer sleeve 2. This stabilizes their position.

[0062] As in Fig. 2As shown, after inserting the base wall 8, food can be arranged in the space between the side walls 6 and on top of the base wall 8. The insert provides thermal insulation from the outside. A lid wall (not shown) can then be placed on top and, if necessary, pressed slightly between the walls. This creates a particularly tight seal against the side walls 6 and achieves improved insulation.

Claims

1. Thermally insulating container for the transportation and storage of articles, wherein the insulating container has a weight-absorbing outer casing (2) having at least three side casing walls (9) and a bottom casing wall, and a thermally insulating insert which is arranged in the outer casing (2), wherein the insert (1) has at least three, preferably four side walls (6) which are arranged at least partially on the side casing walls (9) of the outer casing (2), and wherein the insert has at least one bottom wall (8) and one lid wall and the bottom wall (8) is arranged on the bottom casing wall of the outer casing (2), and the lid wall is arranged opposite the bottom wall (8), characterised in that the side walls (6) of the insert have a common tubular bag (1), in that the side walls (6) are at least partially delimited from each other by quilting seams in the tubular bag (1), in that the tubular bag (1) is filled with an insulating material, and in that the bottom wall (8) and the lid wall are separated from the tubular bag (1) of the side walls (6).

2. Insulating container according to claim 1, characterised in that the quilting seams (7) which separate the side walls (6) from one another are designed as fold lines for the tubular bag (1).

3. Insulating container according to claim 1 or 2, characterised in that the tubular bag (1) has a jacket with a jacket piece which has a longitudinal seam (4) which preferably extends along all the side walls (6) and has two side seams (5) which are substantially perpendicular to the longitudinal seam (4), wherein it is preferably provided that the jacket is made at least partly from polyethylene, a fabric and / or a material containing cellulose fibers, and particularly preferably that the jacket has a paper layer and a polyethylene layer.

4. Insulating container according to one of claims 1 to 3, characterised in that the lid wall is arranged on a lid casing wall of the outer casing (2), which is preferably formed by tabs of the outer casing (2).

5. Insulating container according to one of claims 1 to 4, characterised in that the insert has at least one intermediate wall which is not part of the tubular bag (1) of the side walls and which is arranged between the bottom wall (8) and the lid wall.

6. Insulating container according to one of claims 1 to 5, characterised in that the insulating material comprises cellulose fibers, wherein it is preferably provided that the insulating material comprises shredded paper and / or shredded cardboard.

7. Insulating container according to one of claims 1 to 6, characterised in that the insulating material in the tubular bag (1) is present in a density between 20 kg / m3 and 60 kg / m3, preferably between 30 kg / m3 and 50 kg / m3, and most preferably in about 45 kg / m3.

8. Method for producing a thermally insulating insert, wherein a jacket of a tubular bag (1) is closed except for an opening, an insulating material is loosened up and introduced into a jacket of the tubular bag (1) via the opening, and the opening is closed, wherein the tubular bag (1) is divided after filling into at least three, preferably four side walls (6) by quilting the tubular bag (1) so that quilting seams (7) are produced which at least partially delimit the side walls (6) from one another, and wherein a bottom wall (8) and a lid wall of the insert are produced separately from the tubular bag (1), or are separated from the tubular bag (1) after it has been filled.

9. Method according to claim 8, characterised in that the insulating material has a first density after loosening and has a second density which is higher than the first density after insertion into the tubular bag (1).

10. Method according to claim 8 or 9, characterised in that a defined quantity of insulating material is weighed in via a scale and this quantity is then introduced into the tubular bag, wherein the weighing-in is preferably carried out after loosening, wherein it is preferably provided that the insulating material is fed to the scale via a conveyor belt and / or that the insulating material is conveyed out of the scale after weighing-in via an openable flap using gravity.

11. Method according to one of claims 8 to 10, characterised in that the insulating material is introduced into the tubular bag (1) by means of a screw conveyor rotatable about an axis of rotation and displaceable along the axis of rotation, wherein the insulating material is fed to the screw conveyor preferably via a scale, particularly preferably via a screw scale.

12. Method according to one of claims 8 to 11, characterised in that insulating material is introduced into the tubular bag (1) by means of a piston which can be displaced along a sliding axis, wherein the insulating material is fed to the piston preferably via a scale, particularly preferably via a screw scale, wherein it is preferably provided that the insulating material is fed to the piston via a feed piston, which is preferably pneumatic and / or particularly preferably at an angle, very particularly preferably at an angle between 60° and 120°, very particularly preferably at an angle of about 90° to the piston.

13. Method according to one of claims 8 to 12, characterised in that the tubular bag (1) is arranged between two conveyor belts except for an opening after sealing and is transported by the latter, and in that the conveyor belts bring the jacket together in the region of the opening after filling and the opening is preferably closed before the tubular bag (1) leaves the conveyor belts.

14. Method according to one of claims 8 to 13, characterised in that, after the opening has been closed, the tubular bag is guided through a transport channel with two opposing roller conveyors and the insulating material is distributed in the tubular bag by rollers of the roller conveyors, wherein the rollers of the two roller conveyors are preferably arranged offset relative to one another.

15. Method for producing an insulating container, wherein a weight-force-absorbing outer casing (2) having at least three side casing walls (9) and a bottom casing wall is provided, a tubular bag (1) is produced from a thermally insulating insert according to one of claims 8 to 14, the tubular bag (1) is folded so that the side walls form a channel (10), and wherein a bottom wall (8) of the thermally insulating insert and the tubular bag (1) are introduced into the outer casing (2) so that the bottom wall (8) is arranged on the bottom casing wall and the side walls (6) are arranged on the side casing walls, and wherein the channel (10) is closed with a lid wall of the thermally insulating insert, wherein it is preferably provided that an insulating container according to one of claims 1 to 7 is produced.