KR100786212B1 - A blank for a container and a container made from said blank - Google Patents

Abstract

The container comprises a container wall 3 and a lower bottom member enclosed by the container wall and connected to the wall in a fluid-tight manner. The outlet opening, which can be selectively closed by the lid member, is surrounded by the container wall in a position opposite to the bottom member. Such a container, in particular a corresponding blank 1 for the container wall, has an upper and lower peripheral edge 4, 5 and a first and second connection edge 6, 7 which are laterally connected to the peripheral edge. Each of the connecting edges extends along an interconnectable overlap region 8, 9 to form a container. To improve this blank or such container to simplify the manufacturing process, reduce costs, form inspection openings more stably, and at the same time have greater load bearing capacity, connection of overlap regions. Thereby at least one peripheral opening 10 is formed in each of at least overlap regions which at least partially overlap each other. The vessel wall of the vessel consists of this blank.

Peripheral opening, inspection opening, overlap area, flange, receiving channel, transparent film

Description

A blank for a container and the container which consists of the said blanks {A BLANK FOR A CONTAINER AND A CONTAINER MADE FROM SAID BLANK}

The present invention is a blank for a container, in particular for a container wall, comprising a top and a bottom peripheral edge and first and second connection edges laterally connected to the peripheral edge, each of said connection edges being described above. A blank extends along an interconnectable overlap region to form a container.

The invention also relates to a container, which may consist of the blank, wherein the container is provided with at least one lower bottom member which is separated from the container wall and surrounded by the container wall and connected to the wall in a fluid-tight manner. An outlet that can be selectively closed by the lid member in a position opposite to the bottom member is surrounded by the container wall.

It is already known to date that such blanks or containers formed therefrom are mounted to a container wall having at least one inspection opening that can be used to look inside the container from the outside of the container. This is helpful for example for checking the filling or filling height of the container and optionally also for checking the quality of the container contents. The container contents in this form can be food, for example beverages, yogurt, ice cream, pourable or poured food, which can be consumed through the upper outlet of the container, for example.

In order to form such an inspection opening in the blank, the opening has so far been formed in the corresponding blank by a separate tool. For example, when an opening is created by punching, the ejection means generally have to be additionally installed, as well as the part that has fallen into the punching of the corresponding blank to be removed, thereby blanking it from the corresponding tool after the punching operation. It becomes possible to separate them. The part falling off by punching is generally removed by suction or the like. The method of making the blank and the corresponding device is therefore relatively complex and expensive.

It should also be noted that the container wall made of blanks or blanks has only low stability or dimensional stiffness in part in the region of the inspection opening, depending on the material used as the blank. This can lead to the effect of a leak occurring in the region of the inspection opening, for example caused by the corresponding pressure applied to the vessel in the region of the inspection opening during operation of the vessel.

It is therefore an object of the present invention to improve the blanks or containers so that their manufacture is simplified and the costs are reduced and inspection openings are formed more stably while at the same time having a greater load bearing capacity.

This object is achieved by the features of claims 1 and 12 respectively.

Peripheral edges in at least each of the overlap regions along the first and second connecting edges of the blank are outside the overlap region, without the need for a separate tool to form corresponding openings in the blank during corresponding edge trimming. Can be generated. Since edge trimming can be performed at any rate during the manufacture of the blank, the manufacturing step can be used simultaneously to form the corresponding peripheral opening. Due to the placement of the peripheral openings in the overlap area, portions of the corresponding blanks removed to form the peripheral openings can be discarded along with unnecessary by-products that occur during edge trimming. Separate disposal of unnecessary by-products formed outside of the overlap area is no longer necessary.

Thus, for example, corresponding ejection means for separating the blank from the punching tool for other standard inspection openings are also not necessary.

Since the peripheral openings are formed at least in each of the overlap regions, the inspection openings composed of the peripheral openings after the connection of the overlap regions are also arranged in the overlap regions. Since the wall thickness of the vessel at this location is essentially twice that of the other vessel walls due to the connection of the two overlapping regions, the inspection opening is placed in the reinforced region of the vessel, thus making it more stable and losslessly liquid-bearing with higher loads. Can withstand

In addition, if the peripheral opening is designed as a peripheral recess opening outward toward the connecting edge, it may be easier to separate the blank from the corresponding tool during edge trimming. The peripheral recess will then at least partially overlap with the forming portion of the corresponding inspection opening while the container is formed.

It can be seen that it is advantageous if the peripheral openings overlap in their entirety and optionally have the same shape to obtain a sufficiently large inspection opening with a minimum of effort. For this purpose the peripheral openings can be arranged, for example, at the same distance from the upper and / or lower peripheral edges.

If the peripheral opening is rounded without having a sharp edge, it may be easier to manufacture the peripheral opening and separate the blank from the corresponding tool.

It is possible for the corresponding peripheral opening to extend into the blank beyond the overlap area. Due to the part of the peripheral opening arranged in the overlap area, the subsequent stability of the inspection opening is at least partially improved. However, in order to improve the stability as much as possible, the peripheral openings are limited to each overlap area and thus may not extend to the remaining blanks.

For example, it is possible to provide a plurality of peripheral openings along an overlap region in which the distance of adjacent peripheral openings is changing from the lower peripheral edge to the upper peripheral edge. In this connection, it is possible for the distance of the peripheral opening to be reduced towards the lower peripheral edge. By doing so, you can better check how much content is still in the container. It may be further advantageous in the manufacturing process when the peripheral openings are separated at equal intervals from each other along the overlap region. In general, this same spacing of separations is sufficient to check the contents in the container.

Both the peripheral opening along the overlap region and the peripheral opening in the two overlap regions can have different cross sections when comparing with each other. For example, a relatively small peripheral opening can be formed close to the upper peripheral edge sufficient to check the height of the contents inside the container. A corresponding peripheral opening extends longitudinally of the overlap region and is formed in the region of the lower peripheral edge with a greater length, so that the excitation can be checked in a better way when the container is empty. In a simple embodiment, however, it is possible for all peripheral openings to have the same cross section.

The corresponding peripheral opening may terminate at a distance from the inner overlap line of the overlap area. This also ensures that there is a suitable connecting surface of the overlap area around or at least a portion of the peripheral opening. However, in order to obtain the inspection opening as large as possible, there may be an advantage if the peripheral opening extends to the inner overlap line of the overlap area. This may be particularly advantageous if the overlap area only has a small width but has a reasonably large inspection opening.

The peripheral opening can be designed such that the corresponding overlap line substantially contacts the peripheral opening. However, it is also possible for the peripheral opening to extend at least partially along its overlap line to its inner edge opposite the overlap line.

The inspection openings in the container formed from the blank may be closed in a liquid sealed form by a membrane or a coating. In order to facilitate the application of the film or coating, it is possible for the peripheral opening to be at least partly surrounded by the coating area. The coating area, in particular, serves to secure the membrane or to apply the coating outside the peripheral or inspection openings, resulting in improved liquid sealing. The coating area may extend beyond the area in the remaining blank as well as in the corresponding overlap area.

Since the peripheral openings can have very different cross sections, as a result, the inspection openings have very different cross sections. Apart from the inspection inside the container, the cross section can be designed such that a star, cross shape or other cross section of the inspection opening is obtained, which can have a positive effect on the visual appearance of the container in aesthetic sense. The simple cross section in this connection is a circular or elliptical cross section. If the inspection opening extends to a greater length in the longitudinal direction of the overlap area, a slot-shaped cross section is also possible with the inspection opening and a corresponding cross section with the peripheral opening. The corresponding width of the cross section can be further varied in the longitudinal direction of the overlap area.

During the production of the container, the corresponding blanks are deformed such that the overlap areas are in contact with each other and at least interconnected to form the container wall. The connection can also be formed in a standard manner with an adhesive or by fusing an existing plastic coating of the blank material. Such blank material is for example a corresponding plastic material, in particular food affinity, or is also paper or cardboard. The coating of the material is in particular a plastic material which is liquid-sealed and optionally gas-tight food-compatible. The material of the blank or the corresponding coating also allows a sandwich-like material which constitutes several layers of different materials.

The corresponding bottom member of the container may be made of the same material. The container may also be selectively closed with a lid member located opposite the bottom member, and a corresponding outlet may be located at this location.

For example, there are various possibilities for the connection of the container wall and the bottom member by bending the lower peripheral edge of the blank of the container wall towards the interior of the container and forming a receiving channel for the peripheral flange of the bottom member. The peripheral flange protrudes in the direction of the receiving channel and is inserted into the channel and thereafter connected in a liquid sealing manner to the vessel wall.

The corresponding upper peripheral edge of the blank may, for example, be flanged and / or flat pressed to form a mouth roll or another opening edge. The inlet rolls or differently formed opening edges can here also serve to securely fasten the lid member.

As already mentioned above, the inspection opening is sealed in liquid sealing form, in particular by means of a transparent membrane or coating.

To prevent the liquid sealing of each inspection opening separately, all inspection openings can be sealed at the same time as the corresponding film or coating extends along the overlap area, where the inspection openings are on the inside and / or outside on the container. Is mounted on.

With regard to the overlap area, it should also be noted that the container wall has a connecting edge located inside the container after it is formed. If a film or coating for the liquid sealing of the inspection openings also covers at least the connection edges arranged inside the container, it can be regarded as an advantage here. The connecting edges may be sealed independently, for example, during punching or in the next step following this process.

In addition, the film or coating may be used not only to serve as a liquid seal of the inspection opening but also to connect overlap regions at the same time. This can be realized, for example, because the membrane or coating extends from the interior of the container around the connection edge disposed inside the container to at least an external connection edge. It is also possible for the externally located connecting edge to be additionally sealed by a film or a coating. The film or coating may also be disposed alone between the interconnected overlap regions.

It is obvious that the membrane or coating must be made of a transparent or at least translucent material in order for the inspection inside the container to be surely possible through the inspection opening. It is also possible to install the film or coating together with the printing and / or coloring in at least several positions. Such printing is, for example, a mark indicating the desired filling height of the container. In this way, it is easy to check whether the container is properly filled. It is possible for more printing to serve the purpose of advertising. Due to the printing and / or coloring, positive aesthetic design features are also provided. It is possible for the film or coating to change its color when the contents of the container are heated or cooled or no longer in contact with the film or coating in the region of the corresponding inspection opening. Coloring may also change in response to the temperature of the container contents, so that, for example, whether the container contents are properly heated or heated can be detected.

In order to protect the inspection opening at least until the container is used, the inspection opening can in particular be covered on the outside on the container with a flap-like cover. This protects the inspection opening during filling and corresponding processing of the container and subsequent transport or sorting of the container. The cover can be selectively opened or removed only if the container is used according to the application.

If the cover is given a flap shaped design, there may also be an advantage when it can be reclosed after opening. This can be achieved, for example, by making the lid self-adhesion and / or peelable. For example, at the foldable end of the lid, the corresponding self-adhesion is sufficient for the flap shaped lid. When the cover is removed, it can be left removed on the one hand or optionally reapplied in the case of self-adhesion.

When composed of a container or a corresponding blank, the blank is generally punched, cut, or from a corresponding master piece to form first and second connecting edges laterally connected to the blank and the upper and lower peripheral edges. Attention must be paid to the method of preparation in other ways. The blank produced in this way is then subjected to edge trimming, especially in the region of the connecting edge. Corresponding edge trimming may also optionally be performed in the region of the upper and lower peripheral edges.

A corresponding peripheral opening is then created in at least the overlap region or overlap regions during edge trimming. The blanks, which are installed with peripheral openings and trimmed along the edges, are bent to form the container wall and connected in liquid sealing form in the overlap area. Simultaneously with the connection, the inspection opening is created from the peripheral openings of both overlap regions which at least partially overlap.

It should also be noted that the edge trimming and the generation of the peripheral openings can also be performed simultaneously or sequentially. A further process step for forming the corresponding vessel is the application of a film or coating to and / or between the overlapped overlap regions for the liquid sealing of the resulting inspection openings.

The corresponding film or coating can be applied, for example, already before the connection of the overlap area, for example to serve as an adhesive during sealing one or both peripheral edges or connecting the overlap areas in a liquid sealing manner.

Advantageous embodiments of the invention will be described in more detail with reference to the drawings in the accompanying drawings.

1 is a plan view of a first embodiment of a blank according to the invention;

2 is a plan view of a second embodiment of a blank according to the invention;

3 is a plan view of a third embodiment of a blank according to the invention;

4 is a plan view of a fourth embodiment of a blank according to the invention;

5 is a plan view of a fifth embodiment of a blank according to the invention;

6 is a plan view of a sixth embodiment of a blank according to the invention;

7 is a plan view of a seventh embodiment of a blank according to the invention.

8 shows a side view of the container formed from the blank according to FIG. 5, in a cut state;

9 is a plan view of a peelable lid for an inspection opening.

1 to 7 show seven different embodiments of the blank 1 according to the invention, wherein the same blank parts are denoted by the same reference numerals and are only partially described with reference to one drawing.

The blank 1 according to FIG. 1 serves to form the container wall 3 of the container 2 (see FIG. 8). The blank is surrounded by an upper curved peripheral edge 4 and a lower curved peripheral edge 5 and first and second connecting edges 6, 7 laterally connected to the blank. The connecting edges 6, 7 extend in a straight line to reach the overlap regions 8, 9. They are contacted with each other to form a container (see FIG. 8) and interconnected in a liquid sealed form.

The overlap regions 8, 9 have arranged therein the peripheral openings 10 formed as peripheral recesses 16 which open in the direction of the first and second connection edges 6, 7 (FIG. 2 and below). See them).

The overlap regions 8, 9 are delimited by overlap lines 19, 20 at a distance from each connecting edge 6, 7. Peripheral opening 10 extends to its inner edge 21 up to the overlap lines 19, 20. The inner edge 21 may extend partially along the corresponding overlap lines 19, 20 (see FIG. 6 or 7).

Peripheral openings 10 in each overlap region 8, 9 are arranged at the same distance from the lower peripheral edge 5 in the same section. When overlap regions 8, 9 are connected, peripheral openings 10 will overlap to form corresponding inspection openings (see reference numerals 13, 14 and 15 in FIG. 8).

In the embodiment according to FIG. 1, only one peripheral opening 10 is arranged in each of the overlap regions 8, 9, so that only one inspection opening is formed when the container wall 3 is formed.

Further areas, indicated by dashed lines extending in parallel with the corresponding peripheral edges, extend along the upper and lower peripheral edges 4, 5. The corresponding area along the lower peripheral edge 5 serves to form the receiving channel 26 (see FIG. 8), and the area along the upper peripheral edge 4 serves to form the inlet roll 27. (Refer to FIG. 8).

The material of the corresponding blank 1 is generally paper or cardboard coated with a plastic film, wherein the material of the plastic film is chosen such that it is at least liquid sealed or optionally gas sealed. In addition, the membrane can serve to connect to the overlap region during the formation of the container wall 3, which will be melted by heat treatment and connected to the overlap region in a liquid sealed manner after solidification.

The embodiment according to FIG. 2 is distinguished from the embodiment according to FIG. 1 by more peripheral openings 11 in each of the overlap regions 8, 9.

This applies in common to the third embodiment according to FIG. 3. In this embodiment the corresponding peripheral openings 12 in each of the overlap regions 8, 9 are arranged closer to the upper peripheral edge 4 as compared to the embodiment according to FIG. 2.

As a result, FIG. 4 shows a fourth embodiment in which three peripheral openings 10, 11, 12 separated from each other at equal intervals and provided in the same cross section are arranged in each of the overlap regions 8, 9.

In the embodiment of FIGS. 2 and 3 each of the two inspection openings is obtained in the container wall 3, and in the embodiment according to FIG. 4 three inspection openings are obtained.

5 and 6 show a further embodiment, which is shown as an example in which the peripheral openings 10, 12 are separated from the upper or lower peripheral edges 4, 5 at equal intervals 17, 18. The corresponding peripheral opening has a semicircular cross section extending in the direction of each connection edge 6, 7. In this case, each overlap line 19, 20 is substantially tangential to each peripheral opening 10, 11, 12.

In the embodiment according to FIG. 6, the corresponding peripheral openings 10, 11, 12 respectively extend along their part of the overlapping lines 19, 20 with their inner edges 21, resulting in the resulting inspection openings. In elongated elliptical cross section.

The inspection openings 13, 14, 15 according to FIG. 8 are substantially formed by the peripheral openings 10, 11, 12 according to FIG. 5 with a circular cross section.

Of course, it is also possible in each of the embodiments in a uniform fashion but in many different ways that a number of peripheral openings are not formed or distributed in the longitudinal direction of the overlap area. For example, the peripheral opening can be arranged in the vicinity of the lower peripheral edge 5 even at smaller intervals or at decreasing intervals from the top to the lower peripheral edge. More changes are evident in both cross sections of the corresponding peripheral openings and in the distribution and placement of the peripheral openings in the overlap area.

It is possible for the peripheral opening to extend to the remaining blank 1 over each overlap region or overlap line 19, 20.

Another possibility for the peripheral opening is that the peripheral opening is installed in each overlap area or along the overlap area with another cross section that only selectively overlaps by partial connection of the overlap area forming the corresponding inspection opening.

In the embodiment according to FIG. 7, only one peripheral opening 10 is arranged in each of the overlap regions 8, 9. The opening 10 extends over most of the length of each overlap region 8, 9 between the upper and lower peripheral edges 4, 5. This yields a substantially slot-shaped inspection opening in the finished container.

In the embodiment according to FIG. 7 further shows coating areas 22, 23 next to each peripheral opening 10, which area is characterized by enclosing the opening in the area of the corresponding blank 1. Corresponding coating areas 22, 23 may also be formed with peripheral openings 10, 11, 12 of the embodiment.

In the finished container 2 (see FIG. 8) and the finished container wall 3, the coating areas 22, 23 serve to install or apply the corresponding film or coating 28 (see FIG. 8 again). ).

The peripheral openings 10 arranged in the respective overlap regions 8, 9 need not be similar, but extend, for example, over the overlap lines 19, 20 in the remaining blank or in the overlap regions 8, 9. The arrangement in the form of compensating relative to each other in the longitudinal direction also corresponds to the embodiment shown in FIG. 7.

However, setting or applying the membrane or coating 28 is generally straightforward when the corresponding peripheral openings 10, 11, 12 overlap or overlap each other as a whole.

FIG. 8 shows a side view of the container 2 with the container wall 3 cut in the center and made of blanks according to FIG. 5. The corresponding overlap regions 8, 9 are arranged in overlap form and are interconnected in a liquid sealing manner. At the same time they are arranged overlapping the overlap regions 8, 9, the corresponding peripheral openings 10, 11, 12 also overlap to form the inspection openings 13, 14, 15.

At the lower end, the container 2 comprises a bottom member 24. The bottom member has a peripheral flange 32 which projects downward and surrounds the bottom member and is inserted into the receiving channel 26 of the container wall 3. The receiving channel 26 can be formed by bending the lower peripheral edge 5 upwards, and by insertion of the corresponding peripheral flange 32 of the bottom member 24 the member is sealed in a liquid sealing manner. ) Is connected.

At its upper end, the container 2 has an outlet 25 surrounded by an inlet roll 27 or a similar edge. The inlet roll 27 is formed by flanged the upper peripheral edge 4.

On or inside the vessel 29 and / or outside thereof, a film or coating 28 is applied for the liquid sealing of the inspection openings 13, 14, 15 along the overlap regions 8, 9. It is possible to use a membrane or coating 28 to seal all inspection openings 13, 14, 15. In the area of the inspection opening 13, the film / coating 28 includes a height mark as the printing portion 30 and may optionally be colored.

The film or coating 28 may also extend from the inside of the container 29 around the inner first connecting edge 6 to the outside of the container 2, in particular to the outer second connecting edge 7, and optionally It can be sealed by liquid sealing method.

As can be seen in particular in FIG. 8, the inspection openings 13, 14, 15 only extend in the interconnected overlap regions 8, 9 and are thus surrounded by the double-layer material of the blank 1. As a result, stability in the region of the inspection opening can be improved.

On the outside on the container 2, an optionally flap-shaped lid 31 can additionally be arranged to cover the inspection openings 13, 14, 15. This cover is shown in the form of a rectangle in FIG. 9. The lid 31 can be securely fixed to the container 2 along one of the length edges, while the other length edge exposes the inspection openings 13, 14, 15 and the container for inspecting the container interior 29. Can be folded off. In the area of the fold length edge, it is possible to securely hold the edge in a detachable manner outside the container. As a result, the lid can be closed again. It is also possible to initially secure the fold-length edge of the lid 31 by one connection to the outside of the container, so that it can be detected whether the flap has already been opened before.

The lid 31 may also be designed as a substantially strip-like, self-adhesive and / or peelable strip lid (see FIG. 9).

The container and the corresponding blank according to the invention are each characterized by the easy creation of the corresponding inspection opening and the placement of the inspection opening in the overlap area. This particular arrangement yields improved stability in the region of the inspection opening. In addition, since they can be created with the trimming of the corresponding edges and eliminated with the resulting unwanted by-products, there are no separate unnecessary by-products during the creation of the inspection openings. In particular, because of the shape of the peripheral opening as an open peripheral recess, a method, for example, a discharge means or the like, which requires the separation of the blank from each tool after manufacture of the opening is unnecessary.

Claims (21)

Blanks 1 for the container wall 3, which are laterally connected to the upper and lower peripheral edges 4, 5, and the peripheral edges, each connectable to form the container 2. In the blank (1) for the container wall (3) comprising first and second connecting edges (6, 7) extending along the overlap regions (8, 9) One or more peripheral openings 10, 11, 12 are formed in each of the overlap regions 8, 9, and the peripheral openings 10, 11, 12 are connected to each other by connection of the overlap regions 8, 9. A blank characterized in that it overlaps to form an inspection opening (13, 14, 15). The method of claim 1, Blank, characterized in that the peripheral opening (10, 11, 12) is formed as a peripheral recess (16) open outwardly towards the connecting edge (6, 7). The method according to claim 1 or 2, Blank, characterized in that the peripheral openings (10, 11, 12) are arranged at the same distance from the upper and lower peripheral edges (4, 5). The method according to claim 1 or 2, Blank, characterized in that the peripheral openings (10, 11, 12) are formed on the respective overlapping areas (8, 9). The method of claim 4, wherein The blank, characterized in that the peripheral openings (10, 11, 12) are separated at equal intervals from each other along the overlap area (8, 9). The method according to claim 1 or 2, Blank characterized in that the peripheral openings (10, 11, 12) are the same in cross section. The method according to claim 1 or 2, Blank, characterized in that the peripheral opening (10, 11, 12) extends to the inner overlap line (19, 20) of the overlap area (8, 9). The method according to claim 1 or 2, Blank, characterized in that the peripheral opening (10, 11, 12) extends with its inner edge (21) along the overlap line (19, 20). The method according to claim 1 or 2, Blank, characterized in that the peripheral opening (10, 11, 12) is surrounded by a coating area (22, 23). The method according to claim 1 or 2, Blank characterized in that the inspection opening (13, 14, 15) consisting of the peripheral opening (10, 11, 12) is circular or oval in cross section. The method according to claim 1 or 2, Blank, characterized in that the inspection opening (13, 14, 15) consisting of the peripheral opening (10, 11, 12) is in the shape of a slot in cross section. A container wall 3, a lower bottom member 24 enclosed by the container wall and connected to the wall in a fluid-tight manner, and optionally closed by a lid member and which can be closed by the bottom member 24. In a container (2) comprising an outlet (25) enclosed by the container wall at a position opposite to Said container wall (3) consists of a blank (1) according to claim 1. The method of claim 12, The lower peripheral edge of the vessel wall 3 bends toward the interior 29 of the vessel, the receiving channel 26 is formed by bending the lower peripheral edge 5 upwards, and the peripheral flange 32 is Container which is inserted into the receiving channel (26). The method of claim 12, The upper peripheral edge (4) of the vessel wall (3) is flanged or flat-pressed to form a mouth roll (27) or the like. The method of claim 12, Said inspection opening (13, 14, 15) being sealed in a liquid sealing manner by means of a transparent film (28) or a coating. The method of claim 12, The container (28), characterized in that the film (28) or coating extends along the overlap area (8, 9). The method of claim 16, Said membrane (28) or coating is characterized in that it is covered with one or more connecting edges (6) disposed inside said vessel (29). The method of claim 12, The film 28 or coating is characterized in that it extends from the container interior 29 around the connection edge 6 disposed in the container interior 29 to a connection edge 7 located on the outside. . The method of claim 12, Wherein said film (28) or coating is formed with a printed portion (20) or a colored portion at several locations. The method of claim 12, Said inspection opening (13, 14, 15) is characterized in that on the outside of the container (2) it can be covered with a flap-like cover (31). The method of claim 12, Said lid (31) being self-adhesive or peelable.

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