EP0691278B1 - Package with an outer container and an inner enclosure - Google Patents

Abstract

The container has a dimensionally stable plastics support ring (10) for an inner foil which fits detachably on the opening edge of the cardboard container. A lid (4) fits onto the support ring preferably in a fluid-tight manner. The lid can be an inverted lid with downwardly projecting lips (20,24) which engage underneath an edge (22) on the support ring. The support ring can have a circumferential downwardly open channel (12) by which it engages over the opening edge of the container. <IMAGE>

Description

The invention relates to packaging according to the preamble of claim 1.

Packaging of this structure, also known as bag-in-bag or bag-in-box, take the packaged goods in which from a dense material, e.g. a plastic film existing inner container during which the The outer casing of the packaging for the containers necessary dimensional stability and together with the Cover also protects against damage from external Forms forces. The container usually consists of Cardboard, cardboard composite or a paper material and must not necessarily be tight. Have packaging of this type of particular importance in today's waste management. So the inner container, which is a bag, shell or is designed like a bucket, serve as a refill, while the container and the lid at the consumer of the packaged goods remain and to accommodate the Serve refill bag. With single-use packaging, however is a single variety after consumption of the filling material Separation and separate recycling or disposal of Bags, lids and containers possible.

The known packaging of this type is for inclusion mostly not suitable for liquid packaging goods, because there is no tight closure of the lid. Becomes A tight seal is required, so is the packaging very complex. In a known version (DE 34 39 442 A1) the container is bottle-shaped and provided with a screw cap. The bag comes with its support ring attached to the opening edge of the container and the screw cap sealing with a ring against the Screwed support ring. In another embodiment the part of the bag with its opening edge over the Bottle neck turned outwards and by means of a patch Clamping ring fixed. Sealing takes place in same way between the screw cap and the clamping ring.

Bottle-shaped containers are not for all packaging goods suitable, especially not if the goods to be packaged out of the packaging with tools or portioning aids, which is usually Large cross-section openings required. For containers this type of screw caps are excluded. In many Cases are also out of round, especially rectangular containers with large opening desired. With a known This type of cover is a slip lid trained, which engages over the outside of the container and on a molded flange or bead of the container snaps in. The container consists of cardboard and the Plastic cover allows a tight connection hardly achieve. In this case, the opening of the inner container formed by the support ring closed with a sealed foil. she can but only during storage and transportation as tight closure act as they are after breaking open or Tear open is no longer usable.

FR 2 112 854 is a cardboard tube with a known end flare on which a foil bag with a reinforced support ring. On the support ring a metal cover is attached, which with a additional clamping ring can be fixed.

DE 42 26 337, which describes the preamble of claim 1 forms, discloses a dimensionally stable container into which a Foil bags can be hung with a support ring. A lid made of cardboard or plastic can be placed on the support ring be put on.

In the latter two fonts it is disadvantageous that the cover provided is only applied and other constructive to achieve a sealing function Measures such as a tensioning device, an additional one Cover and possibly an additional seal, necessary are.

The invention has for its object a packaging to train the aforementioned structure so that at constructive simple structure and any form of packaging tight closure and reclosure possible is.

This task is done with a packaging according to the generic term of claim 1 according to the invention solved in that the lid is designed as a slip lid and down has protruding lips with which he is on the support ring is sealing and form-fitting, but can be detachably attached.

Due to the positive connection in which the lips of the slip lid, for example, an edge on the support ring overlap is a firm hold of the cover on the support ring guaranteed, the form fit is designed so that the lid is detachable. The seal can be in each other Nearby areas of cover and support ring respectively.

In a preferred embodiment, the lid is liquid-tight on the support ring. Because the lid and support ring in the Usually made of plastic, is to be sealed Given the same pairing of materials, the one easier sealing than with different Materials, e.g. between Plastic and cardboard. Also can be on the lid and Support ring smooth, smooth and closely tolerated surfaces realize which in turn is known to be special allow effective line or area sealing; especially such a seal can also be designed that it is liquid tight.

The training according to the invention allows any Shape design of the packaging, but in particular can Containers are designed as round or non-round drums, which are particularly simple from cardboard or cardboard composite can be made. Because of the positive connection of cover and support ring is only sufficient for one stable fixing of the support ring to the container ensure that the inner container when opening the lid remains fixed and is not deducted prematurely, however the connection between the support ring and the container do not perform a sealing function. Such packaging can also be used especially in larger containers with up to 10 liters and more, so that too Chemicals, paints, varnishes etc. can be filled. Nevertheless, is in the sense of the applicable packaging regulations a separation into single components possible be disposed of in a manner appropriate to them can, the volume of contaminated by the product Inner container is reduced to a minimum, what is particularly important for disposal, if the product is classified as hazardous waste.

Another preferred embodiment is characterized by this from that the lid in the edge area a circumferential, after has open U-profile below, with which it approximately cross-sectionally identical support ring and its Thighs form the lips. The fact that the lid with his molded U-profile overlaps the support ring a kind of labyrinth formed, which is correspondingly narrower Fitting the parts alone for a sufficient Sealing can provide. With higher tightness requirements can if necessary on the adjacent surfaces additionally a line seal with a circumferential one Rib or the like may be provided.

The support ring advantageously has a circumferential downward open gutter to open the edge of the container spreads. A sufficiently firm hold can be achieved obtained by a press fit or by the fact that the Supporting ring on the inside of the channel has projections, by means of which it is positively attached to the container is.

In this way it can also be between the support ring and Generate a positive connection container, especially so should be such that the holding force is greater than that of the form fit between cover and support ring. This can be due to the spring properties of plastics and the deformability of cardboard or cardboard composites accomplish easily. For example, can be provided be that the container is below its opening edge Has depressions into which the projections engage, the recesses being formed by a circumferential groove can be in which the projections snap. The Projections themselves can be nose-shaped and extend like a rib over a greater length.

A particularly useful training results if the protrusions on the inside of the outer wall the groove of the support ring and the groove on the outside of the container are arranged. After emptying can the inner container by pulling the support ring out of the container be pulled out.

The inventive design of the packaging gives the Possibility that the cardboard, cardboard composite or a Paper material consisting of a simple container Sleeve is formed, one cut edge of the opening edge the container opening forms. This cut edge is overlapped by the support ring; so it doesn't need must also be covered so that it is moisture-proof the container has an edge bead for stiffening the sleeve or seal the cover, as this function is taken over by the support ring.

According to a further exemplary embodiment, the Support ring connected to the container. This can be done by Gluing, welding or done mechanically.

Another embodiment is characterized by that the container from the plastic film by deep drawing or bubbles is formed and one on the occasion of this molding process has generated supporting edge, by means of which it engages over the support ring, and that the cover one Edge formation and edge formation overlapping the support ring has and with this against the supporting edge of the container seals.

In this version, the inner container consists of a thermoformed or blown plastic film which is also a possibly stiffer supporting rim is molded. The inner container lies with this carrying rim the support ring at least partially, which in turn on the opening edge of the cardboard or cardboard composite container is detachably attached and this opening edge covers moisture-proof on the one hand, on the other hand stabilized. After inserting the inner container and Placing its support rim on the support ring is the Lid placed on both the carrying rim and the Grips over the support ring, thus obtaining its edge formation is that he is at the same time for the necessary Sealing against the carrying rim of the inner container worries. The container and the container can have any cross-sectional shape exhibit.

The seal can be ensured that the U-profile of the lid on the inside of its inside Leg and possibly the web sealing surfaces forms the corresponding areas on the Sealing outside of the carrying edge of the container apply, while it is provided for fixing that the Cover with the outer leg of its U-profile on Support ring engages releasably.

A further preferred embodiment is characterized by this from that a two-part support ring is provided and the lower part of the support ring on the opening edge of the Container is placed that the container with molded Support rim rests on the lower part of the support ring and between this and the one that spans the lower part Upper part of the support ring is clamped and that the Cover with its essentially U-shaped edge The upper part of the support ring overlaps and against the inside of the container and / or seals against the upper part.

The two-part design of the support ring results the possibility of the lower part of the support ring on the Opening edge of the container made of cardboard or cardboard composite to put on, the foil bag with its carrying rim hang up and the upper part of the support ring under Clamping the carrying rim of the container onto the lower part put on, so that on the one hand the container its opening edge against by the two-part support ring Moisture access is protected, on the other hand that Inner container clamped between the two support ring parts is, the training is chosen so that a tight sealing is given and liquid filling material is not penetrate outwards between the two support ring parts can.

Due to the still U-shaped edge flange of the lid this can in turn on the upper part of the Define the support ring and also train here for tight sealing of the entire packaging ensures that not only powdery, but liquid filling goods can also be filled. Preferably the supporting edge is U-shaped and overlaps the lower part of the support ring.

The sort unit of separable components is further ensures that the cardboard, cardboard or Cardboard composite container from a cylindrical Sleeve and a bottom, and that the bottom of the Container is designed as a deep-drawn cardboard disc, which is inserted in the sleeve and its deep-drawing edge between the sleeve and one at the opening of the Container opposite end formed inner flange is pinched or flanged with it.

Is a packaging designed according to the invention as Container intended for paints, so she draws is characterized in that the lid in its edge area a form-fitting holder for a scraper grille forms.

Scraper grilles are frequently used auxiliary devices Painting work to strip off excess paint. she are traded as accessories and must be transported Sales and use are always kept separately. When in use, they are usually at an angle to the Container placed so that the stripped paint in the Container flows back. With the embodiment according to the invention form the container with its contents and the scraper a space-saving, functionally combined Unit, both as a sales unit and as a unit of use.

An advantageous embodiment can be designed in this way be that the lid on the inner outside of the Projections or has a single circumferential projection that of Recesses on an inner strip of the scraper grille is spread.

Figur 1

eine Verpackung, teilweise in Seitenansicht, teilweise im Schnitt;

Figur 2

einen Schnitt der Verpackung im Bereich des Behälterrandes in vergrößerter Darstellung;

Figur 3

einen der Figur 2 entsprechenden Schnitt einer anderen Ausführungsform und

Figur 4

einen der Figur 2 entsprechenden Schnitt einer weiteren Ausführungsform.

The invention is described below with reference to some exemplary embodiments shown in the drawing. The drawing shows:

Figure 1

a package, partly in side view, partly in section;

Figure 2

a section of the packaging in the region of the container edge in an enlarged view;

Figure 3

a section corresponding to Figure 2 of another embodiment and

Figure 4

a section corresponding to Figure 2 of another embodiment.

The packaging 1 according to FIG. 1 consists of a container 2, a container 3 used therein for the packaged goods and the opening of the container or Container 3 closing lid 4. The container can be cylindrical, oval or essentially rectangular be trained. Accordingly, it is in the Container 2 used container 3, which is advantageous a film is formed.

The container 2 consists of a sleeve 5 and a bottom 6, both advantageously made of cardboard or cardboard composite consist. On the sleeve 5, especially in the case of larger ones Container a handle 7 may be formed. The floor 6 is deep drawn from a cardboard disc and from the one side inserted into the sleeve 5, the deep-drawing edge 8 is turned outwards. The bottom 8 is through an inner flange 9 of the sleeve 5, which against the deep-drawing edge 8 is pressed on the inside, fixed.

In the embodiment according to FIG. 2, the container 3 is on provided on its open side with a support ring 10, e.g. welded, glued or the like. The support ring 10 has a cylindrical part 11, on the outside the bag 3 is attached, and a U-shaped groove 12 on (Fig. 2) with which the support ring 10, the open end face overlaps the sleeve 5. For fixing the support ring 10 or the container 3 on the sleeve 5 has the channel 12 molded ribs 14 with inward facing nose-like projections 15 which are molded into from the outside Engage recesses 16 of the sleeve 5 in a form-fitting manner, but can be released by pulling upwards.

The cover 4 is designed as a deep-drawn part made of plastic and has a cover plate 17 and an edge subsequent U-profile 18 with an inner leg 19 and an outer leg 20 by a Web 21 are connected. With the U profile 18 on the edge the lid engages over the edge-side groove 12 of the support ring. To fix the cover 4 on the support ring 10 the latter has a circumferential or on the outside several spaced-apart depressions 22, in the nose-like projections 23 or ribs on the inside of the outer U-leg 20 engage. Around to get a liquid-tight seal is on the inside of the web 21 a protruding downward circumferential lip 24 provided due to its resilience in connection with the contour-like training the outer surface 25 of the channel 12 and the inner surface 26, 27 of web 21 and leg 20 of cover 4 a large circumferential seal guaranteed.

The illustrated embodiment of the packaging is used for Inclusion of paints, varnishes or the like. For this The application is packaging with a scraper 28 combined, the at least two opposite Place downwardly projecting strips 29 with recesses 30, by means of which it on nose-like projections 31 on the outside of the inner leg 12 of the U-profile 18 of the cover 4 is snapped on. Furthermore points the scraper grille formed on opposite sides Hook 32 with which it is in the use position in the Support ring 10 can be hung.

The embodiment of Figure 3 differs of that according to Figures 1 and 2 in that the inner Container 3 has a molded support rim 3 ', with which it loosely placed on the support ring 10 or with this connected is. In the closed position, the carrying rim 3 'between the edge region of the cover 4 and between the web 23 of the U-profile and the lip 24 sealing trapped.

In the embodiment shown in Figure 4 is the support ring 10 formed in two parts. It consists of one Lower part 33, which is in the same manner as in FIGS. 2 and 3 on the opening edge of the container 2 or its sleeve 5 is attached, and an approximately contoured upper part 34. The container 3 has an integrally molded in this case Support edge 3 'on a U-shaped cross section owns and seals between the upper and lower part is jammed. The seal between cover 4 and Support ring upper part 34 takes place in the previously described Wise.

Claims (19)

1. Pack with a cardboard or cardboard composite container (2) having a bottom (6), an opening facing the bottom, a plastic film receptacle (3) receiving the filling material and inserted in the container (2), and a dimensionally stable, plastic bearing ring (10) for the receptacle (3), which is detachably mounted on the opening rim of the container (2), and a lid (4), characterized in that the lid (4) is constructed as a turn-over lid and has downwardly projecting lips (20, 24), with which it is mounted in sealed, positive, but detachable manner on the bearing ring (10).
2. Pack according to claim 1, characterized in that the lid (4) rests in liquid-tight manner on the bearing ring (10).
3. Pack according to claim 1 or 2, characterized in that the lips (20) of the lid (4) engage below an edge (22) on the bearing ring (10).
4. Pack according to one of the claims 1 to 3, characterized in that in the marginal area the lid (10) has a circumferential, downwardly open U-profile (18), with which it engages over the approximately equi-cross-sectional bearing ring (1) and whose legs form the lips (20, 24).
5. Pack according to one of the claims 1 to 4, characterized in that the bearing ring (10) has a circumferential, downwardly open channel (12), with which it engages over the opening rim of the container (2).
6. Pack according to one of the claims 1 to 5, characterized in that on the inside of the channel (12) the bearing ring (10) has projections (15) by means of which it is positively fixed on the container (2).
7. Pack according to one of the claims 1 to 6, characterized in that, below its opening rim, the container (2) has depressions (16), in which engage the projections (15).
8. Pack according to one of the claims 1 to 7, characterized in that the depressions (16) are formed by a circumferential channel, in which lock the projections (15).
9. Pack according to one of the claims 1 to 8, characterized in that the projections (15) are located on the inside of the outer wall of the channel (12) of the bearing ring (10) and the depressions (16) are located on the outside of the container (2).
10. Pack according to one of the claims 1 to 9, characterized in that the positive connection of the bearing ring (10) to the container (2) is detachable.
11. Pack according to one of the claims 1 to 10, characterized in that the opening rim of the container (2) formed by a cutting edge is stiffened by the bearing ring (10) of the receptacle (3).
12. Pack according to one of the claims 1 to 11, characterized in that the hearing ring (10) is connected to the receptacle (3).
13. Pack according to one of the claims 1 to 11, characterized in that the receptacle (3) has a bearing edge (3'), by means of which it at least partly engages over the bearing ring (10), and that the lid (4) has a marginal construction engaging over the bearing edge (3) and the bearing ring (10) and seals therewith against the receptacle bearing edge (3).
14. Pack according to claim 13, characterized in that the U-profile of the lid (4) forms sealing faces on the inside of the lip (24) and optionally the web (21), with which it sealingly engages the corresponding faces on the outside of the bearing edge (3') of the receptacle (3).
15. Pack according to one of the claims 1 to 11, characterized in that a two-part bearing ring (10) is provided and the lower part (33) of the bearing ring is placed on the opening rim of the container (5), that the receptacle (3) rests with a shaped-on bearing edge (3') on the lower part (33) of the bearing ring (10) and is clamped between the latter and the upper part (34) of the bearing ring (10) engaging over the lower part and that the substantially U-shaped edge (20, 24) of the lid (4) engages over the upper part (34) and seals same against the inside of the receptacle (3) and/or the upper part (34).
16. Pack according to claim 15, characterized in that the bearing edge (3') shaped onto the receptacle (3) has a U-shaped configuration and outwardly engages over the lower part (33) of the bearing ring (10).
17. Pack according to one of the claims 1 to 16, characterized in that the container (2) comprises a cylindrical sleeve (5) and a bottom (6) and that the container bottom is constructed as a deep-drawn paperboard disk, which is inserted in the sleeve and whose deep-drawn edge (8) is clamped between the sleeve (5) and an inner flange (9) constructed on the end opposite to the container opening or is flanged thereto.
18. Pack according to one of the claims 1 to 17, particularly for paints, characterized in that in its outer marginal area the lid (4) forms a positive insert (31) for a stripping grid (28).
19. Pack according to claim 18, characterized in that the lid (4) has on the inner outside of the marginal area engaging over the bearing ring (10) projections (31) or a single, circumferential projection, over which engages recesses (30) on an inner ledge (21) of the stripping grid (28).

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