EP4144658A1 - Bucket with an inner envelope and package - Google Patents

Abstract

One aspect of the invention relates to a bucket (2) with a base (4) and with a peripheral side wall (5) which has a peripheral edge (6) with a grip area (8) in the area of an opening (7) of the bucket (2). for cooperation with a cover (3). The bucket (2) has at least one rigid annular cap (9) releasably connected to the peripheral rim (6), the cap (9) having a flange portion (10) covering the engagement area (8), and An inner casing (11) with a casing base (12) and a peripheral casing wall (13) is attached to the attachment (9), the casing base (12) and/or the peripheral casing wall (13) being formed entirely or partially from a film are. Another aspect of the invention relates to a container (1), comprising: a bucket (2), which is designed as described above, and a lid (3), which is used to close the opening (7) with the flange section (10) of the Essay (9) cooperates.

Description

The invention relates to a bucket with a base and with a peripheral side wall, which has a peripheral edge in the area of an opening with an engagement area for interaction with a lid. The invention also relates to a container with such a bucket and with a lid.

In the context of this application, a bucket is understood to be a container with a circumferential, generally slightly conically inclined side wall and an opening, which typically extends over the entire upper side of the bucket. The basic shape of the bucket, which typically corresponds to the basic shape of the bottom, is arbitrary. The bucket can, for example, have an oval, round, rectangular or square basic shape. In the context of this application, a bucket is also understood to mean a can-shaped container in which the side wall is cylindrical.

From the EP 3848176 A2 the applicant has become aware of a container made of plastic in the form of a bucket, in which at least one in-mould label or at least one label is attached to an inside of the peripheral side wall and to an inside of the bottom. The bottom (in-mold) label has a portion extending along the inside of the side wall that overlaps the wall-side (in-mold) label. With a suitable choice of material, the (in-mould) label can improve the barrier properties of the container against oxygen, water vapor or resistance to aggressive filling goods. The wall-side (in-mold) label can be connected as a whole (peelable) to the inside of the peripheral side wall and the bottom-side in-mould label can be detachable (peelable) as a whole to the inside of the bottom or to the peripheral side wall be connected, so that the (in-mold) label act in the manner of a detachable and true-to-contour inner shell. After the end of use of the container, the (in-mould) labels can be completely separated from the latter by being actively detached or pulled off the container by an operator. In this way, the plastic material of the container, to which filling material typically no longer adheres in this case, can be recycled more easily, or the container can be refilled with filling material.

The object of the invention is to provide a bucket and a container with an inner shell that is as true to the contour as possible and that can be easily inserted into the bucket and removed from the bucket again.

According to a first aspect, this object is achieved by a bucket of the type mentioned at the outset, which has at least one dimensionally stable annular attachment which is detachably connected to the peripheral edge, the attachment having a flange section which covers the gripping area, and the attachment an inner shell with a shell base and a peripheral shell wall is attached, the shell base and/or the peripheral shell wall being formed entirely or partially from a film.

In this aspect of the invention, it is proposed that a detachable and true-to-contour inner shell be realized not by attaching (in-mold) labels to the peripheral side wall or to the base, but instead by attaching the inner shell to a dimensionally stable attachment which is placed on the peripheral edge of the peripheral side wall and which is detachably connected to the peripheral edge. The inner shell, ie the shell base and the shell wall, can be made entirely or possibly only partially from a film. The inner shell usually has no openings or the like. A filling that is filled into the inner shell therefore does not come into direct contact with the inside of the peripheral side wall and the inside of the base. In this way it is possible to reuse the bucket after emptying the contents. The inner sleeve therefore has the same advantages in terms of material savings that also arise when using an inner sleeve of (in-mould) labels formed from film.

In contrast to (in-mould) labels, however, after the inner sleeve has been removed, in which the attachment is detached from the peripheral edge of the bucket, a new attachment can be applied to the peripheral edge and a new inner sleeve can be inserted into the bucket, which is not readily possible when using an inner sleeve in the form of (in-mold) labels.

The term “dimensionally stable” is understood in the context of this application to mean that a component, for example the ring-shaped attachment, does not change its shape during normal use and can at most be deformed elastically without considerable effort. Compared to a dimensionally stable component, which typically has a thickness of at least 0.6 mm, a component designed as a film is significantly thinner. The thickness of the base of the shell and the surrounding wall of the shell are generally more than approximately 50 μm and less than approximately 300 μm. The case bottom and the Circumferential shell wall - if they are completely formed as a film - are flexible, ie they are not dimensionally stable components.

In one embodiment, the attachment has an upper clamping profile for cooperating with a clamping profile formed on an inner side of an edge of the lid or on an inner side of another rigid annular attachment. The upper clamping profile of the attachment makes it possible, as with a conventional bucket, to close the opening on the bucket with a latching and sealing lid, with the bucket also being able to be opened and closed several times. The bucket can therefore be handled by an operator like a conventional bucket in order to empty the filling substance(s) from the bucket, more precisely from the inner shell.

The upper clamping profile of the attachment is typically also designed to interact with a (lower) clamping profile of another attachment that is essentially structurally identical. This simplifies the stacking of several rigid attachments on top of each other before the corresponding inner sleeves are attached to them. In addition, it is possible to place one or more additional attachments on an attachment that is placed on the upper edge of the peripheral wall of the bucket, and thus to stack several attachments on top of one another on the upper edge of the bucket. This is particularly favorable when the inner casings attached to the attachments have a comparatively small height and are designed in the manner of bowls in order to allow the mixing of filling materials located in the respective inner casings, as will be seen below is described in more detail.

In a further embodiment, the attachment has a lower clamping profile in the flange section, which is designed to cooperate with a clamping profile on the engagement area of the peripheral rim of the bucket. The lower clamping profile typically corresponds to a clamping profile formed on the inside of the lid to cooperate with the engagement portion of the peripheral rim. In this way, the attachment can be placed on the peripheral edge of the bucket in the manner of a lid and fixed there (locking). In contrast to the cover, a sealing effect on the peripheral edge of the peripheral side wall is not absolutely necessary or not wanted for the attachment (see below). The lower clamping profile can also be used to interact with an upper clamping profile of another, identical attachment in order to stack several attachments on top of each other (see above).

The clamping profile on the engagement area or the upper clamping profile of the flange section can be, for example, a groove that interacts with a corresponding clamping profile in the form of a locking edge that is formed on the cover or on the underside of a flange section of another attachment , or the other way around. It goes without saying that the clamping profile of the gripping area, the clamping profile on the flange section of the attachment and the clamping profile of the lid can also be designed in a different way.

In a development, an air gap is formed between an underside of the flange section of the attachment and an upper side of the peripheral edge of the peripheral side wall. In this case, the attachment does not rest on the upper side of the peripheral edge, as would be the case with a lid, in order to achieve a sealing effect, but is spaced from the top of the peripheral edge of the peripheral sidewall. As a result, a space between the outside of the inner shell and the inside of the peripheral side wall or the bottom of the bucket can be vented when the contents are filled into the inner shell with the attachment placed on the peripheral rim. The air present in the space can escape from the space via the gap between the underside of the flange section and the top of the peripheral rim of the bucket. The width or the height of the gap can, for example, be of the order of approx. 0.2 mm to 1 mm.

In a further embodiment, the casing wall has a fastening section which is connected to the attachment, in particular to a side wall section of the attachment over which the flange section protrudes outwards, in a fixed or detachable manner, in particular in a peelable detachable manner. The fastening section typically forms a section at the upper, free end of the peripheral casing wall, which is generally formed entirely from a film.

The fastening section can be connected to the attachment, more precisely to the side wall section of the attachment, in different ways. For example, a non-detachable connection can be produced by plastic welding or by overmoulding the casing wall with the plastic material of the attachment in an injection molding process during production of the attachment. In the event that the film casing wall is detachably connected to the attachment, in particular in a peelable detachable manner, the plastic material of the film casing wall is not compatible with the plastic material of the attachment, so that when the connection is made there is no common melt -Composite formed becomes. The detachable connection of the casing wall of the inner casing to the side wall section of the rigid attachment is advantageous, since in this case the peripheral casing wall together with the casing base and the attachment can be disposed of or recycled separately after the bucket has been used.

In principle, it is possible to connect the casing wall to the inside or to the outside of the side wall section of the attachment. As a rule, it is favorable if the casing wall is connected to the inside of the side wall section of the attachment, since in this case it can usually be avoided that the filling material comes into contact with the side wall section (see below). If the casing wall is releasably connected to the attachment in the fastening section, the attachment can be reused in this case, if necessary.

In a further development of this embodiment, the attachment section of the casing wall extends on the inside of the attachment, preferably on the inside of the side wall section of the attachment, up to a contact area with the cover. In the contact area, the inside of the fastening portion of the film envelope wall comes into contact with the inside of the lid. By covering the inside of the attachment up to the contact area - as soon as the bucket is closed with the lid - it is ensured that the attachment or the side wall section of the attachment does not come into contact with the contents on the inside.

In this case, does the lid have a label or in-mould label on the inside made of a food-compliant material or possibly a coating or the like made of a food-compliant material or is the If the lid itself is made of a food-compliant material, the corresponding container as a whole can be food-compliant, even if the plastic material of the dimensionally stable peripheral attachment itself is not food-compliant, for example because the plastic material of the attachment is made entirely or partially from a non-food-compliant regenerated plastic is formed.

In a further embodiment, the bottom of the casing forms a first film and the casing wall forms a second film, which are connected to one another in an overlapping area in a fixed or detachable manner, in particular so that they can be peeled off.

In principle, the base of the casing and the casing wall of the inner casing can form a joint molded film part, which is typically produced by deep-drawing. In the event that the casing wall has a comparatively large height, production by deep drawing may not be possible without further ado. Accordingly, it is favorable if the casing base and the circumferential casing wall form two separate film components which are typically firmly connected to one another in an overlapping area, for example via a welded joint. In this way, inner shells with comparatively large dimensions can also be produced.

In a further development, the casing base has a section which extends along the casing wall and which, in the overlapping region, overlaps with the surrounding casing wall, preferably with an outside of the casing wall. It has proven advantageous if the overlapping area is formed at the lower end of the casing wall. In this way, the case bottom can be formed as a flat film, whose circumferential edge is folded over or folded in order to be connected to the casing wall in the overlapping area. Since the section that extends along the wall of the casing may have incisions, depending on the geometry of the bucket, it is advantageous to connect the section that extends along the wall of the casing to the outside of the wall of the casing. However, this is not absolutely necessary, ie the protruding section can alternatively overlap in the overlapping area with the inside of the casing wall. The connection can be made by plastic welding or in some other way. The area of overlap typically extends along the casing wall for a height of about 5-15 mm.

In a further embodiment, two edges of the peripheral casing wall lying opposite one another in the peripheral direction are connected to one another in a fixed or detachable manner, in particular in a peelable detachable manner, at an overlapping seam. In this case, the foil casing wall can be produced from a flat foil, ie from a flat foil blank. The two edges can, for example, be welded together along the overlapping seam. As described above in connection with the fastening section of the casing wall, the connection can be permanent or detachable, in particular detachable in a peelable manner. This simplifies the disposal of the film casing wall. The latter is typically only favorable in the event that the filling material is solid, for example if the filling material is frozen. If a liquid filling material is used, there is a great risk that the liquid filling material will leak out unintentionally. In principle, however, it is possible or favorable in the case of a solid filling material to make the connection detachable if the casing wall can be removed quickly and easily by simply tearing open the peel seam or the peelable connection.

In a further embodiment, the bucket comprises a dimensionally stable support ring, which surrounds a lower end of the casing wall and preferably an area of the casing base adjoining the casing wall, and which can be attached in a fixed or detachable manner, in particular peelably detachable, to the outside of the casing wall and/or to the outside of the Case floor is connected. The rigid support ring stabilizes the inner shell at the lower end of the shell wall. The dimensionally stable support ring can be used in particular to cover the overlapping area at the lower end of the casing wall. As described above in connection with the fastening section and the overlapping seam of the casing wall, the rigid support ring can be connected firmly or detachably to the outside of the side wall and/or to the outside or underside of the casing bottom.

In principle, it is possible to connect a dimensionally stable base area firmly or detachably, in particular detachably and in a peelable manner, to the outside or underside of the casing base of the inner casing. The base area can be connected to the outside or underside of the film case base over the entire surface or partially, ie partially. Due to the dimensionally stable bottom area, the inner shell can be additionally stabilized, for example to increase its stability. However, such a stabilization is not absolutely necessary. In the event that the bucket has the rigid support ring described above, the rigid bottom area can be attached to the outside of the casing bottom within the rigid support ring, which is connected to the outside of the casing bottom, or the rigid bottom area also covers the casing bottom in the area of the rigid support ring and the rigid support ring partially covers the floor area.

In a further embodiment, at least one carrying aid is attached to the attachment, in particular in the flange section. The carrying aid can be, for example, a carrying handle that is fastened to the attachment at two mounting points or possibly more than two mounting points. The carrying aid can also be a band-shaped carrying handle that is molded onto the attachment. However, the carrying aid can also be (at least) one carrying handle or the like, which makes it easier for an operator to lift the attachment off the peripheral edge of the bucket and, if necessary, to separate it from it. Such a carrying handle can, for example, have access openings for an operator, which makes it easier to lift the attachment.

In a further embodiment, the peripheral edge has a section that protrudes beyond the peripheral side wall, on which the engagement area is formed, and the protruding section is adjoined by a peripheral apron that is spaced apart from the peripheral side wall. In the protruding section, the peripheral edge typically has the engagement area with a clamping profile for cooperating with a clamping profile on an inner side of an edge of the lid.

In this case, the rim of the bucket forms a double rim which has a section which protrudes radially outwards beyond the peripheral side wall and which is adjoined by the apron which is spaced apart from the peripheral side wall. The skirt typically extends just below the engagement area for securing the lid formed on the overhanging portion of the peripheral rim. Reinforcement ribs are usually provided to stiffen the apron, which extend from the outside of the peripheral side wall to the inside of the skirt.

The bucket can have an opening aid, e.g. Other components which are known from conventional buckets and simplify the handling of the bucket for an operator, for example holding elements for a carrying handle, carrying handles or the like, can also be attached to the peripheral edge. The same applies to the dimensionally stable attachment. In particular, the attachment can have an opening aid, for example an opening tab or the like, in order to make it easier to lift the lid off the attachment. With the help of the opening tab, which is attached to the peripheral edge of the bucket, the attachment can in principle be detached from the peripheral edge, but not the lid from the attachment.

In a further development, the attachment has an apron section which is adjacent to the flange area and covers the apron. With the help of the apron section, it is possible to prevent the peripheral edge of the bucket, more precisely the apron, from becoming dirty when liquid filling material is poured out of the bucket. Since the filling material is stored in a filling volume in the inner shell and ideally does not come into contact with the apron or the peripheral edge of the bucket when the filling material is emptied due to the apron section, the bucket can be reused after removing the attachment, if necessary without cleaning , for example by placing a new attachment with an inner shell on top of it or by filling the bucket directly with a product.

The apron section can extend in the circumferential direction along the entire apron in order to protect it from the filling material. In order to save material, however, it is favorable if the apron section only extends along a section of the circumference of the peripheral apron in which the filling material is poured out of the bucket. The two sections along the circumference of the bucket, at which the contents can be poured out, are typically located essentially in the middle between the two mounting points of the carrying handle. In the event that the skirt portion only extends over part of the circumference of the peripheral rim or skirt, a suitable orientation of the attachment relative to the peripheral edge of the bucket is required. Such an alignment can be implemented, for example, by an indexing element on the attachment, which enables alignment relative to the mounting points. For example, the carrying aid described above can be designed for this purpose in such a way that it interacts with the mounting point of the carrying handle in such a way that the attachment cannot be rotated in the circumferential direction relative to the peripheral edge of the side wall.

In a further embodiment, the bottom of the casing and/or the surrounding wall of the casing have a plurality of film layers which are preferably detachably connected to one another in a peelable manner. The films for the base of the case and for the wall of the case can also have a multi-layer structure so that individual layers can be detached after use. In this way, once the individual layers of film that have come into contact with the contents have been removed, a clean, refillable inner shell is available again.

In one embodiment, the liner wall of the inner liner extends along the peripheral side wall to the bottom of the bucket. In this case, the inner shell practically completely fills the filling space volume available in the bucket. When using such an inner shell, the bucket can usually be reused because it does not come into contact with the contents. After the filling material has been emptied from the inner shell, the attachment can be removed and replaced by another attachment whose inner casing can be filled again with a filling material.

In an alternative embodiment, the shell wall of the inner shell of the attachment has a height that is less than the height of the peripheral side wall and is preferably less than 90% and preferably more than 10% of the height of the peripheral side wall. The height of the peripheral side wall is measured along the vertical axis of the bucket from the bottom to the top of the peripheral rim. The height of the envelope wall is measured appropriately from the envelope bottom to the end of the attachment portion where the envelope wall is attached to the attachment. The height of the shell wall depends on the particular application.

In this embodiment, the inner shell typically does not serve to protect the bucket from contamination, but has a different function. In this case, too, the attachment with the inner shell can be used to store a product that is accommodated in the inner shell. This can be useful, for example, if the bucket contains another filling and the two fillings are to be mixed with one another in the inner volume of the bucket. Such a separate storage of two fillings in the inner volume of the bucket or in an inner shell of a The attachment can be useful, for example, if the filling goods are to be used up quickly after mixing. In this case, the contents can be mixed by breaking through the base of the inner shell using a suitable tool, so that the contents enter the interior volume of the bucket. It is also possible that the attachment described above, whose casing wall extends to the bottom of the bucket, is placed on the peripheral rim and that the attachment described here is placed on the attachment described above. In this case, the bucket can be protected from the filling material or materials not only before but also after mixing.

In a further development of this embodiment, a further attachment is applied to the attachment, which has an additional inner sleeve which protrudes into the inner sleeve of the attachment. In this case, a first filling material is typically stored in the inner volume of the bucket, which is to be mixed with a second filling material stored in the attachment and with a third filling material stored in the further attachment. In this case, too, the respective shell bottoms of the attachment and of the further attachment can be pierced with a suitable tool in order to mix the contents. It goes without saying that more than two attachments with more than two inner casings and contents stored therein can also be placed on the bucket.

A further application of the attachment described here is to fill the headspace volume of the inner volume of the bucket that is not filled with a filling material, as a result of which oxygen is displaced from the headspace volume and cannot react with the filling material. In this case, the inner shell is filled with air and is closed with the lid, which may have a valve (see below) to fill the gap between the build up an overpressure between the inner shell and the lid. In this way, the inner casing, in particular the casing base of the inner casing, can be pressed against the filling level of the filling material and the headspace volume can be completely filled. However, due to the tightly closing lid, an overpressure builds up in the filling space volume anyway if the filling level of the filling material is slightly higher than the immersion depth of the casing bottom of the inner casing in the inner volume of the bucket, so that the provision of the valve on the lid may not be necessary can be.

In a further aspect of the invention, the bucket described in the introduction has an inner shell which is formed from a film, the inner shell having a shell bottom and a peripheral shell wall which has an everted flange section which defines the engagement area of the peripheral edge and preferably a covered by the peripheral side wall, peripheral apron of the peripheral edge. In this case, the inner shell can be designed like the inner shell that was described in connection with the first aspect of the invention. In particular, the bottom of the casing can form a first film and the casing wall can form a second film, which are connected to one another in an overlapping area in a fixed or detachable manner, in particular in a detachable, peelable manner. It is also possible to attach a rigid support ring to the inner shell.

In this aspect of the invention, the inner shell is not fastened to a rigid attachment, rather a flange section of the shell wall that is everted over the peripheral edge of the bucket serves to releasably fasten the inner shell to the bucket. In this case, the attachment is effected by placing the cover on the turned-up flange section of the inner sleeve, which covers the engagement area.

This makes use of the fact that the inner sleeve is so thin that the clamping area of the lid can also interact with the gripping area on the peripheral edge of the bucket when the inner sleeve covers the gripping area of the peripheral edge.

A further aspect of the invention relates to a container, comprising: a bucket, which is designed as described above, and a lid, which is used to close the opening with the flange section of the dimensionally stable peripheral attachment or with the engagement area of the peripheral attachment covered by the flange section of the inner sleeve border works together.

As described above, the inside of the lid can have an (in-mold) label made of a food-compliant material or possibly a coating or the like made of a food-compliant material. If, in this case, the base of the casing and the surrounding casing wall, which extends into the contact area with the lid, are also made of a food-grade material or consist of a food-grade material, the container as a whole can have food-grade conformity, even if it is the material of the attachment is not a food-compliant material. In this way, an effective barrier effect can also be achieved with respect to the contents, which can result in the extension of the best-before date of the contents, for example.

In one embodiment, the cap includes a valve for pressurizing a space between the cap and the inner shell of the attachment. In this case, as described above, the attachment serves to displace the headspace volume of the bucket, whereby oxygen is displaced from the headspace volume and cannot react with the contents. In this case, drying of the contents on the inside of the lid and the bucket can also be reduced. A desired internal pressure or excess pressure can be generated in the intermediate space or in the headspace volume with the aid of the valve fitted in the cover.

In one embodiment, a film component in the form of a label is applied to an inside of the lid, which preferably has a plurality of film layers which are connected to one another in a detachable manner, in particular in a peelable manner. With such a film component, which completely or partially covers the inside of the lid, it can be advantageous to be able to detach individual layers after use, particularly if they have come into contact with the filling.

The film components described above and the dimensionally stable components are typically made from plastics that are customary for buckets, in particular from recyclable plastics. The plastics can be, for example, polyamides (PA), polypropylene (PP), polyethylene (PE), polybutylene terephthalate (PBT) or polyolefins in general. However, plastics based on renewable resources, biodegradable plastics, composite materials and cardboard/paper can also be used.

As has been described above, the foil components in particular, ie in particular the casing base and the surrounding casing wall, do not necessarily have to consist of a single material, but rather they can also be laminates. In a laminate, several layers of foil are glued together, with the adhesive connection for example, can be designed to be peelable (see above). The film components, in particular the surrounding casing wall, can also be printed and/or colored. The use of transparent film components is also possible. The structure of the foil components depends on the requirement profile of the bucket depending on the respective filling and can be individually adapted. For example, by choosing suitable foil materials, the barrier properties of the bucket against oxygen, water vapor or the resistance of the bucket to aggressive contents can be increased.

Further advantages of the invention result from the description and the drawing. Likewise, the features mentioned above and those detailed below can be used according to the invention individually or collectively in any combination. The embodiments shown and described are not to be understood as an exhaustive list, but rather have an exemplary character for the description of the invention.

Fig. 1

eine perspektivische Darstellung eines Gebindes mit einem Eimer, einem Aufsatz, der eine Innenhülle aufweist, sowie mit einem Deckel,

Fig. 2

eine Schnittdarstellung des Gebindes von Fig. 1,

Fig. 3a,b

Detaildarstellungen der Befestigung des Aufsatzes und des Deckels an einem umlaufenden Rand des Eimers sowie eines Überlappungsbereichs eines Hüllenbodens mit einer umlaufenden Hüllenwand der Innenhülle,

Fig. 4a

eine perspektivische Darstellung eines Eimers analog zu Fig. 1 mit einem an den Aufsatz angeformten Haltegriff und einem an den Aufsatz angeformten Schürzenabschnitt,

Fig. 4b

eine Detaildarstellung eines umlaufenden Randes des Eimers von Fig. 4a, der eine Schürze aufweist, und mit dem Aufsatz, dessen Schürzenabschnitt die Schürze überdeckt,

Fig. 5

einen Eimer analog zu Fig. 1 mit einem Aufsatz, dessen Hüllenwand eine reduzierte Höhe aufweist, sowie mit einem weiteren Aufsatz, der auf den Aufsatz aufgesetzt ist,

Fig. 6

eine Darstellung eines Aufsatzes, der wie in Fig. 5 ausgebildet ist, sowie eines Deckels, der ein Ventil aufweist,

Fig. 7

eine perspektivische Darstellung eines Eimers, der eine Innenhülle in Form einer Folie aufweist, die einen über den oberen Rand des Eimers überstehenden Abschnitt aufweist, sowie

Fig. 8

eine perspektivische Darstellung des Eimers von Fig. 7, bei dem der überstehende Abschnitt umgestülpt ist.

The invention is illustrated in the drawings and is explained in more detail using exemplary embodiments. It shows the:

1

a perspective view of a container with a bucket, an attachment that has an inner sleeve and a lid,

2

a sectional view of the container from 1 ,

3a,b

Detailed representations of the attachment of the attachment and the lid to a peripheral edge of the bucket as well as an overlapping area of a casing base with a circumferential casing wall of the inner casing,

Figure 4a

a perspective view of a bucket analogous to 1 with a handle molded onto the attachment and an apron section molded onto the attachment,

Figure 4b

a detailed view of a peripheral edge of the bucket from Figure 4a having a skirt, and with the attachment, the skirt portion of which covers the skirt,

figure 5

a bucket analogous to 1 with an attachment, the envelope wall of which has a reduced height, and with a further attachment which is placed on the attachment,

6

a representation of an essay written as in figure 5 is formed, and a cover having a valve,

7

a perspective view of a bucket that has an inner shell in the form of a film that has a section projecting over the upper edge of the bucket, and

8

a perspective view of the bucket of 7 , in which the protruding section is everted.

This in 1 Container 1 shown comprises a container in the form of a bucket 2 and a lid 3. The bucket 2 has a base 4 and a peripheral side wall 5 , which is slightly conical. The bottom 4 and the peripheral side wall 5 are dimensionally stable. The bucket 2 , more precisely the peripheral side wall 5 , has a peripheral, dimensionally stable edge 6 which is arranged in the region of an opening 7 at the upper end of the bucket 2 . The rim 6 has an engaging portion 8 to cooperate with the lid 3 and close the opening 7 of the bucket 2.

The container 1 also has a dimensionally stable annular attachment 9 which can be releasably connected to the peripheral rim 6 . The attachment 9 has a flange section 10 which covers the engagement area 8 when it is in place. Attached to the attachment 9 is an inner shell 11 which has a shell base 12 and a shell wall 13 . At the in 1 shown example, the inner shell 11 is formed in two parts, ie the shell bottom 12 forms a bottom film and the shell wall 13 forms a wall film or they each consist of a film.

As in 2 and especially in the detailing of Figure 3a As can be seen clearly, the attachment 9 has an upper clamping profile 14 on the upper side of the flange section 10 in the form of a circumferential groove which interacts with a clamping profile which is designed in the form of a circumferential locking edge 15 on the outer edge of the cover 3. The upper clamping profile 14 on the upper side of the flange section 10 of the attachment 9 corresponds to a clamping profile 16 in the form of a circumferential groove which is formed on the engagement area 8 of the circumferential edge 6 of the side wall 5 of the bucket 2 . The clamping profile 16 in the form of the circumferential groove interacts with a lower clamping profile formed on the inside of the flange section 10 of the attachment 9 , which is also designed in the form of a circumferential locking edge 17 .

As in Figure 3a can also be seen, an underside 19 of the flange section 10 of the attachment 9 placed on the peripheral edge 6 is spaced from an upper side 18 of the peripheral edge 6 in the vertical direction, so that an air gap 20 is formed between the attachment 9 and the peripheral edge 6. In this way, a gap 21 between the outside of the inner shell 11, more precisely the surrounding shell wall 13 and between the shell bottom 12 and the inside of the surrounding side wall 4 or the bottom 4 of the bucket 2 can be vented when the filling material enters the interior volume the inner shell 11 is filled. The air present in the intermediate space 21 can escape from the intermediate space 21 via the air gap 20 . The height of the air gap 20 can, for example, be of the order of approx. 0.2 mm to 1 mm.

As in Figure 3a can also be seen, the casing wall 13 has at its upper end a fastening section 22 which is firmly connected to a side wall section 23 of the attachment 9, over which the flange section 10 protrudes to the outside. Alternatively, the fastening section 22 of the casing wall 13 of the inner casing 11 can also be connected to the side wall section 23 in a detachable manner, in particular in a detachable manner in a peelable manner. The latter simplifies the separation of the inner shell 13 from the attachment 9 after removal of the contents, in order to recycle the attachment 9 and the inner shell 13 separately. The side wall section 23 of the attachment 9 runs along the inside of the peripheral side wall 5 of the bucket 2 and is adjacent to the flange portion 10 of the attachment 9, which protrudes radially outwards beyond the peripheral edge 8 of the bucket 2.

At the in Figure 3a In the example shown, the attachment section 22 of the casing wall 13 extends on the inside of the side wall section 23 of the attachment 9 to a contact area 24 with the cover 3. In the contact area 24 the cover 3 rests against the attachment section 22 of the casing wall 13. This prevents the filling material from coming into contact with the side wall section 23 of the dimensionally stable attachment 9 .

In the event that the inside of the lid 3 has an (in-mould) label made of a food-compliant material or possibly a coating or the like made of a food-compliant material and the case base 12 and the case wall 13 of the inner case 11 also made of a food-compliant material Material are made, the container 1 as a whole can have food conformity, even if the material of the attachment 9 or the bucket 2 and/or the lid 3 as a whole is not a food-compliant material.

As described above, the case bottom 12 and the case wall 13 of the attachment 9 are made of a film. As in Figure 3b As can be seen, the casing bottom 12 forms a first film which is connected in an overlapping area 25 to the casing wall 13 made from a second film, welded in the example shown.

The casing base 12 has a section 26 which extends in the direction of the casing wall 13 and which overlaps with the outside of the peripheral casing wall 13 in the overlapping region 25 . As in Figure 3b to As can be seen, a dimensionally stable support ring 27 covers the overlapping region 25 and is connected indirectly, ie via the section 26 of the casing bottom 12 extending in the direction of the casing wall 13, to the outside of the casing wall 5. At the in Figure 3b In the example shown, the dimensionally stable support ring 27 is welded to the outside of the casing wall 13 and rests against the outside of the casing bottom 12, ie there is no fixed connection between the casing bottom 12 and the dimensionally stable support ring 27. In principle, however, the support ring 27 can be fixed or detachable, for example detachably peelable, to the outside of the casing wall 13 and/or to the outside of the casing bottom 12.

In the example shown, the casing base 12 is made from a flat sheet of foil. The peripheral casing wall 13 is also formed from a flat sheet of film by cutting two opposite edges of the sheet of film along an in 1 and in 2 shown overlap seam 28 fixed or detachable, for example peelable detachable, connected to each other.

The protective cover 11, or more precisely the base 12 of the casing, can have a base part--not illustrated in the drawing--which is fixed or detachable, in particular detachably peelable, to the outside or underside of the base 12 of the casing. The base part can run within the rigid support ring 27, but it is also possible for the base part to cover the entire casing base 12 on the outside and for the rigid support ring 27 to cover the base part on its underside.

Fig. 4a,b show the bucket 2 with an attachment 9 placed on its peripheral edge 6, which has a carrying aid in the form of a carrying handle 29 . The carrying handle 29 is attached to the lower end of the flange section 10 of the attachment 9 formed and has two annular sections with access openings for an operator. The carrying handle 29 has a recess between the ring-shaped partial areas in order to create a free space for receiving a mounting point 30 at which a carrying handle 31 is connected to the peripheral edge 6 of the bucket 2 .

Unlike in Figure 4a is shown, the carrying aid can be a carrying handle which is fastened to the attachment 4 at two mounting points. The carrying aid can also be a band-shaped carrying handle which is formed onto the attachment 9 or another type of component which makes it easier to carry the attachment 9 .

The two ends of the support bracket 31 protrude outwards beyond the peripheral edge 6 at the mounting point 30 and at a second, diametrically opposite mounting point. Through the recess on the handle 29, the relative alignment of the attachment 9 to the peripheral edge 6 of the bucket 2 is specified. This is favorable in order to suitably (centrally) align an apron section 32, which is also formed on the attachment 9, relative to the peripheral edge 6 of the bucket 2 or relative to the mounting points 30 of the carrying handle 31 in the peripheral direction. In this way it can be achieved that the (liquid) filling material is poured out of the bucket 2 via the apron section 32 of the attachment 4 . This is favorable in order to protect an apron 33 formed on the peripheral edge 6 of the bucket 2 from contamination.

As in Figure 4b is clearly visible, the skirt 33 is adjacent to a section 34 of the peripheral edge 6 that protrudes beyond the side wall 5 of the bucket 2 and has the engagement area 8 . The peripheral edge 6 of the bucket 2 is in the Figure 4b example shown as an im Substantially U-shaped double edge formed. The skirt 33 runs below the protruding section 34 essentially parallel to the vertical axis of the bucket 2. The skirt 33 connects to the protruding section 34 at the bottom, which is spaced apart from the peripheral side wall 5 and has a cylindrical design. Reinforcing ribs 35 , which extend from the outside of the peripheral side wall 5 to the apron 33 , serve to reinforce the apron 33 .

As in Figure 4b is clearly visible, the apron section 32 of the attachment 9 covers the apron 33 in the direction of the vertical axis of the bucket 2 completely. As in Figure 4a can be seen, the apron section 32 is limited to an angular range of approximately 30°-40° in the circumferential direction of the bucket 2 . It goes without saying that the apron section 32 can also extend over a larger angular range or run along the entire circumference of the attachment 9 .

As a rule, however, it is favorable if the skirt section 32 is interrupted in the circumferential direction in an area in which an opening tab 36 is attached to the skirt 23 . As in 1 as can be seen, the opening tab 36 extends upward into the engagement area 8 of the peripheral edge 6 . The opening tab 36 is pivoted outwards by an operator in order to lift or release the attachment 4 . In order to enable the operator to access the opening flap 36, the apron section 32, provided that it runs all the way around in the circumferential direction, can have a detachable area in the area of the opening flap 36, which can be attached to the remaining protection section 32 via predetermined breaking points, more precisely via a perforation is connected. In order to facilitate the detachment of the cover 3 from the attachment 9, the attachment 9 can also have an opening tab which extends downward from the flange portion 10 of the attachment 9 to be gripped or pivoted by an operator.

In the examples described above, the shell wall 13 of the inner shell 11 of the attachment 9 extends along the peripheral side wall 5 to the bottom 4 of the bucket 2. The inner shell 11 described there thus has a filling volume that practically corresponds to the inner volume of the bucket 2.

figure 5 shows an attachment 9 in which the shell wall 13 of the inner shell 11 does not extend to the bottom 5 of the bucket 2. FIG. Rather, the shell wall 13 of the inner shell 11 of the attachment 9 extends over a height h in the direction of the vertical axis of the bucket 2, which is smaller than the height H of the peripheral side wall 13 and in the example shown at less than 40% of the height H of the peripheral Side wall 13 is. The height h of the casing wall 13 is adapted to the respective application. As in 4 can also be seen, a further attachment 9 ′ is placed on the attachment 9 , which has an additional inner sleeve 13 ′ , which protrudes into the inner sleeve 13 of the attachment 9 .

in the in figure 5 In the example shown, a first filling material A is stored in the inner volume of the bucket 2, which is to be mixed with a second filling material B stored in the inner shell 11 of the attachment 9 and with a third filling material C stored in the further attachment 9'. The respective casing bottom 12 of the attachment 9 and another casing bottom 12' of the additional attachment 9' can be pierced with a suitable tool in order to mix the filling goods A, B, C with one another in the interior volume of the bucket 2, as in 4 is indicated by an arrow. It goes without saying that more than two attachments 9, 9', ... with more than two Inner sleeves 11, 11 ', ... and therein stored contents can be placed on the peripheral edge 6 of the bucket 2 to mix them in the inner volume of the bucket 2.

6 shows another application of an attachment in which the height h of the shell wall 13 of the inner shell 11 is shortened compared to the height H of the peripheral side wall 5 of the bucket 2. In this case, the height h of the casing wall 13 is selected such that a filling level 37 of the filling material is slightly higher than the immersion depth of the casing base 12 of the inner casing 11 in the interior volume of the bucket 2. In this way, after the tightly fitting lid has been put on, 3 in a space 38 between the underside of the lid 3 and the inner shell 11, an overpressure p , which leads to the fact that the head area of the inner volume of the bucket 2 that is not filled with a product is completely filled with air. At the in figure 5 In the example shown, the lid 3 has a valve 39 on its lid surface, which makes it possible to set the overpressure p in the intermediate space 38 so that it can be ensured that the inner shell 11 completely fills the headspace volume of the bucket 2 .

7 and 8 show a bucket 2 or a container 1 which, in contrast to the bucket 2 or container 1 described above, has an inner shell 13 which is not attached to a dimensionally stable attachment 9 . Rather, the inner shell 13 has a section that protrudes beyond the peripheral edge 6 of the bucket 2 (cf. 7 ), which can be turned inside out and in the inverted state forms a flange section 40 which completely covers the peripheral edge 6 including the apron 33 (cf. 8 ). The inner shell 11 is otherwise formed like the inner shell 11 described above, ie this indicates a 7 and in 8 non-illustrated casing bottom 12 and a casing wall 13 which are connected to each other along an overlapping area 25 . Two recesses 41 are provided on the flange section 40 in the region of the two mounting points 30 of the carrying handle 31 in order to prevent the inner sleeve 11 or the flange section 40 from making it difficult for the carrying handle 31 to pivot.

The material of the base 4 and the side wall 5 of the bucket 2, the attachment 9 and the support ring 27 as well as the casing base 12 and the casing wall 13 is typically plastic, in particular polyethylene, polypropylene, polyamide, PET or polyolefins in general, but plastics based on renewable resources, biodegradable plastics, composite materials and cardboard/paper can also be used.

In principle, both the casing base 12, the casing wall 13 and a film component (not shown) in the form of a label (possibly an in-mould label) on the inside of the lid 3 can have a plurality of film layers which can be peeled off with one another are connected. In this way, individual soiled layers can be removed after use and a clean, refillable container 1 is available again.

Claims (15)

Bucket (2) with a base (4) and with a peripheral side wall (5) which, in the area of an opening (7) of the bucket (2), has a peripheral edge (6) with an engagement area (8) for interacting with a lid ( 3) has,
characterized,
that the bucket (2) has at least one rigid annular attachment (9, 9') which is detachably connected to the peripheral edge (6), the attachment (9, 9') having a flange section (10, 10'), which covers the engagement area (8), and wherein an inner sleeve (11, 11') with a sleeve base (12, 12') and a peripheral sleeve wall (13, 13') is attached to the attachment (9, 9'), wherein the casing base (12, 12') and/or the surrounding casing wall (13, 13') are formed entirely or partially from a film. Bucket according to Claim 1, characterized in that the attachment (9) has an upper clamping profile (14) for cooperation with a clamping profile (15) which is attached to an inside of an edge of the lid (3) or to an inside of a further attachment (9 ') is formed. Bucket according to Claim 1 or 2, characterized in that the attachment (9) has a lower clamping profile (17) on the flange section (10) which is designed to cooperate with a clamping profile (16) on the engagement area (8), with preference being given to an air gap (20) is formed between an underside (19) of the flange section (10) of the attachment (9) and an upper side (18) of the peripheral edge (6) of the peripheral side wall (5). Bucket according to one of the preceding claims, characterized in that the casing wall (13) has a fastening section (22) which is connected to the attachment (9), in particular to a side wall section (23) of the attachment (9), via which the flange section (10 ) protrudes outwards, is firmly or detachably connected, in particular detachably and detachably peelable, with the fastening section (22) of the casing wall (13) preferably on the inside of the attachment (9), in particular on the inside of the side wall section (23), extending up to a contact area (24) with the cover (3). Bucket according to one of the preceding claims, characterized in that the casing base (12) forms a first film and the casing wall (13) forms a second film, which are connected to one another in an overlapping area (25) in a fixed or detachable manner, in particular in a peelable detachable manner, with preference being given to the casing bottom (12) has a section (26) extending along the casing wall (13) and overlapping in the overlapping area (25) with the circumferential casing wall (13), in particular with an outside of the casing wall (13). Bucket according to one of the preceding claims, characterized in that two opposite edges in the peripheral direction of the peripheral casing wall (13) are connected to one another in a fixed or detachable manner at an overlapping seam (28), in particular in a peelable detachable manner. Bucket according to one of the preceding claims, characterized by a dimensionally stable support ring (27) which surrounds a lower end of the casing wall (13) and preferably a region of the casing base (12) adjoining the casing wall (13) and which is fixed or detachable, in particular peelable detachably connected to the outside of the casing wall (13) and/or to the outside of the casing bottom (12). Bucket according to one of the preceding claims, characterized in that at least one carrying aid (29) is attached to the attachment (9), in particular in the flange section (10). Bucket according to one of the preceding claims, characterized in that the peripheral edge (6) has a section (34) which protrudes beyond the peripheral side wall (5), on which the gripping area (8) is formed, and in that the protruding section ( 34) adjoins a peripheral apron (33) spaced from the peripheral side wall (5), the attachment (9) preferably having an apron section (32) adjoining the flange area (10) and covering the apron (33). Bucket according to one of the preceding claims, in which the casing bottom (12) and/or the peripheral casing wall (13) have a plurality of film layers which are preferably detachably connected to one another in a peelable manner. Bucket according to one of the preceding claims, characterized in that the shell wall (13) of the inner shell (11) of the attachment (9) extends along the peripheral side wall (5) to the bottom (4) of the bucket (2). Bucket according to one of Claims 1 to 10, characterized in that the casing wall (13) of the inner casing (11) of the attachment (4) has a height (h) which is less than the height (H) of the peripheral side wall (5) and which preferably corresponds to less than 90% and preferably more than 10% of the height (H) of the peripheral side wall (5), wherein another dimensionally stable annular attachment (9') is preferably placed on the attachment (9), which has an additional inner shell (13') which protrudes into the inner shell (13) of the attachment (9). Container (1), comprising:
a bucket (2) according to any one of the preceding claims, and a lid (3) which cooperates with the flange section (10) of the dimensionally stable peripheral attachment (9, 9') to close the opening (7). Container according to Claim 13, characterized in that the cover (3) has a valve (39) for applying an overpressure (p) to a space (38) between the cover (3) and the inner shell (11) of the attachment (9). . Container according to Claim 13 or 14, characterized in that a film component in the form of a label is applied to an inside of the lid (3), which preferably has a plurality of film layers which are connected to one another in a detachable manner, in particular in a peelable manner.

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