EP0491694A1 - Recipient de conditionnement en carton avec poche interne pour liquides. - Google Patents

Recipient de conditionnement en carton avec poche interne pour liquides.

Info

Publication number
EP0491694A1
EP0491694A1 EP90906973A EP90906973A EP0491694A1 EP 0491694 A1 EP0491694 A1 EP 0491694A1 EP 90906973 A EP90906973 A EP 90906973A EP 90906973 A EP90906973 A EP 90906973A EP 0491694 A1 EP0491694 A1 EP 0491694A1
Authority
EP
European Patent Office
Prior art keywords
attached
main surfaces
packaging container
tabs
container according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90906973A
Other languages
German (de)
English (en)
Other versions
EP0491694B1 (fr
Inventor
Erich Heuberger
Karl-Josef Ehrhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Edelmann GmbH and Co KG
Original Assignee
Carl Edelmann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Edelmann GmbH and Co KG filed Critical Carl Edelmann GmbH and Co KG
Priority to AT90906973T priority Critical patent/ATE88969T1/de
Publication of EP0491694A1 publication Critical patent/EP0491694A1/fr
Application granted granted Critical
Publication of EP0491694B1 publication Critical patent/EP0491694B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/18—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding a single blank to U-shape to form the base of the container and opposite sides of the body portion, the remaining sides being formed primarily by extensions of one or more of these opposite sides, e.g. flaps hinged thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank

Definitions

  • the invention relates to a packaging container with an inner bag for holding liquids according to the preamble of claim 1.
  • Containers of the aforementioned type are used to package liquids as a replacement for containers made of plastic material or sheet metal.
  • a packaging container can be pre-glued as a flat-lying folding box, in which a plastic tube is arranged, fed to a packaging machine in which the flat-lying folding box is erected, the plastic tube contained therein is sealed, and it is finally closed by folding and gluing tabs.
  • the filling takes place before the sealing of the plastic tube and the closing of the folding box or, if a sealing spout is attached before the sealing of the plastic tube, after the sealing of the plastic tube and the closing of the folding box through the sealing spout.
  • folding boxes with inner bags are that they require much less plastic material to hold a given amount of liquid than a plastic bottle of the appropriate filling volume, and that they can be compressed very easily after use, so that their disposal is compared to that of plastic bottles or tin cans or cans is considerably simplified.
  • the invention is based on the object of specifying a packaging container made of cardboard with an inner bag for holding liquids of the type mentioned at the outset, which in its external appearance approximates that of a bottle and can be easily manufactured, filled and emptied.
  • the invention specifies a packaging container which roughly resembles an upright bottle in which liquid washing concentrates are usually offered.
  • Such bottles generally have a slim shape with an essentially oval or rectangular cross section, which tapers towards the top.
  • the beveling of at least one of the longitudinal edges of the main sides of the packaging container defines a clear “top” and “bottom” and roughly approximates the shape of a conventional washing concentrate bottle, which has a favorable influence on the consumer's decision to buy.
  • the invention makes it possible to provide the blanks in the continuous operation with an inner bag which is produced from a flat film web, since the weld seam for forming a tube from the film web runs in the same direction in which the pre-glued blank forms a flat-lying folding box is continuous, ie cutting out, providing the plastic tube, folding over and pre-gluing the blank can be carried out in a single operation on a continuous machine. It is also essential for folding boxes that are to be provided with a pouring spout and closure spout, that in the area in which the spout is to be attached, namely at the Top of the packaging container, there is no weld seam of the inner bag, since this could impair the tight connection of the spout to the inner bag.
  • the invention enables the creation of packaging containers which are provided with a filling and pouring spout onto which a screw cap can be screwed, as well as the creation of packaging containers in which a pouring opening is opened by loosening an adhesive flap of the folding box and pulling up a side wall section thereof and cutting off a corner of the inner bag exposed thereby.
  • Packaging containers of the latter type are particularly intended for those applications in which the contents are emptied completely at once, for example for refilling another container.
  • the invention can also be carried out in such a way that only one of the side edges of the main surfaces of the packaging container has a bevel, so that overall an asymmetrical shape of the packaging container is achieved.
  • Such shapes are also found in conventional plastic bottles for holding washing concentrates on the market.
  • the invention makes it possible to provide bevels on both sides of the main surface mentioned in order to create an overall symmetrical container. It is also possible to provide bevels in the lower area of the folding box comparable to those in the upper area. In this way, a packaging container can be realized, the main surfaces of which are each octagonal.
  • the invention also provides a solution to the problem, in which the upper region of the folding box is provided with rounded shoulders on both sides of the head side in order to simulate a correspondingly shaped surface by means of a packaging made of cardboard with an inner bag.
  • FIG. 2 shows a schematic perspective illustration of a packaging container produced from the blank according to FIG. 1 in a partially finished state
  • FIGS. 1 and 2 shows a perspective illustration of the packaging container according to FIGS. 1 and 2 in an even later, partly finished state
  • FIG. 4 shows a partial illustration of a modified exemplary embodiment of a folding box blank
  • Fig. 5 is a perspective view of a development of
  • Fig. 6 is a perspective view of an embodiment with rounded shoulders
  • FIG. 7 shows a section of the blank for the embodiment according to FIG. 6.
  • FIG. 1A shows in solid lines one side of a blank for a packaging container according to the invention, which is glued to form a flat-lying folding box.
  • the dashed areas in FIG. 1A in the case of the pre-glued, flat-lying folding box relate to sections thereof on the other side of the blank. Otherwise, the parts of the cut parts lying on the other side, which are visible through cutouts, are shown hatched in FIGS. 1A and 1B.
  • dash-dotted lines indicate fold lines on which the corresponding cut parts from the drawing plane according to FIG. 1A are folded backwards when the folding box is erected and closed.
  • Short dashed lines are fold lines on which the folding shaft folds forward out of the drawing plane.
  • FIG. 1A A main area 1 of rectangular shape can be seen in FIG. 1A.
  • a floor latch 2 which, in the pre-glued state of the flat-lying folding box, lies on the back of the illustration in FIG. 1A and is therefore shown in broken lines here (see FIG. 1B).
  • a head surface 3 At the opposite end of the main surface l is a head surface 3, which forms the top of the packaging container when in use.
  • a second main surface 4 On the side of the head surface facing away from the main surface 1 there is a second main surface 4 corresponding to the main surface 1, as shown in FIG. 1B, which lies on the other side of the blank as shown in FIG. 1A.
  • the bottom flap 2 is glued to the edge region of the second main surface 4 which is at the top in FIG. 1B and which is at the bottom when the finished packaging container is in use.
  • the pre-glued blank to form a flat folding box shows from one side the main surface 1 and the top surface 3, each with tabs arranged laterally thereon, to be described, and from the other side the second main surface 4 and the bottom flap 2 adhered to it, each with it tabs protruding to the side to be described. It can also be seen that this pre-glued blank can be erected into a tubular body of rectangular cross section, which can be closed by folding over the tabs already mentioned.
  • a side tab 5 is attached to the main surface 1 on both sides.
  • Each of these side panels 5 has a lower section 5a and an upper section 5b, which are offset from one another by an impressed transverse folding line 6.
  • the side plates 5 are against the main surface 1, respectively offset by indented fold lines 7a and 7b.
  • the fold line 7a extends from the lower end of the main surface 1 to the point at which the transverse fold line 6 ends.
  • the fold line 7b extends to the upper end of the main surface 1.
  • a fold line 8 extends obliquely into the main surface 1 and forms an angle with the adjacent fold line 7b on the order of about 15 °.
  • fold line 9 shown in dashed lines in FIG. 1, on which folds are made in the opposite direction with respect to fold lines 7b and 8.
  • the sector 23 delimited by the two fold lines 7b and 8 has a cutout 10 in the area in which these two fold lines meet, through which the back of the second main surface 4 can be seen through in the example shown.
  • the top surface 3 has an approximately square outline and has an opening 11 for receiving a filler and pouring spout.
  • Tabs 12 adjoin each side of the head surface 3 and are offset against the head surface 3 by fold lines 13.
  • the design of the second main surface 4 and the side straps attached to it is essentially comparable to that of the main surface 1, which is why there, except for the main surface itself, the same reference numerals are used.
  • the upper sections of the side straps are kept somewhat narrower than the lower sections 5a and are therefore provided with the reference symbol 5b 'here.
  • the bottom flap 2 has two side flaps 14, which are offset against the bottom flap 2 by folding lines 15, and a transverse pre-gluing flap 16, which is used for gluing at the edge area the back of the second main surface 4 is determined and is offset by a fold line 17 against the bottom flap 2.
  • Bottom flap 2 is offset against the main surface 1 by a fold line 18.
  • a plastic tube open at both ends in the flat blank which is not shown in FIGS. 1A and 1B and which is glued or welded to the inside of the blank, in particular in the area around the opening 11 and which is open on both sides in the flat state of the folding box.
  • the open sides lie under the side flaps 5a and 5b, and a weld seam for forming this plastic tube from a flat film material runs approximately at the level of the transverse fold lines 6, i.e. transversely under one of the main surfaces 1 and 4. In the area of the head surface 3 there is therefore no weld seam of the plastic hose.
  • the flat blank is first erected and the aforementioned spout, which has a radially extending collar at its base, is attached and sealed from the inside to the plastic tube, the plastic tube forming the tube Plastic film is pierced in the area of the opening 11 and removed.
  • the finished spout is shown at 24 in FIGS. 2 and 3, with the cap 26 screwed on.
  • the plastic tube is then closed at its two open edges by welding. Then those side flaps 5, the upper sections 5b 'of which are made narrower, are folded over to assume the state shown on the right in FIG. 2.
  • End tips 19 of the inner bag protrude from the interior of the erected folding box over the lower and upper ends of the side flaps 5 mentioned, as shown in FIG. 2. Then the side flaps 14 of the bottom flaps 2 are folded up together with the bag tip 19 thereon, see FIG. 2. Then the other, in Fig. 2 still openly illustrated side flaps 5 are folded onto the already folded side flap 5 and the mentioned side flap 4, which is attached to the bottom flap 2 and is now folded up, and glued thereon and to the side flap section 5a below it.
  • the upper, superimposed sections 5b and 5b 'of the side flaps 5 are then pressed against the remaining body of the packaging container in such a way that the sectors 23 delimited by the fold lines 7b and 9 or 8 and 9 respectively Fold in main areas 1 and 4 inwards.
  • the openings 10 serve to facilitate the folding in of these main surface sectors 23.
  • a packaging container is obtained with an essentially trapezoidal side view, from which the presence of an inner bag cannot be recognized at first glance.
  • the inner bag is at most visible through the openings 10, otherwise it is covered by the side flaps.
  • the finished packaging container can now be filled from above through the filling and pouring spout and then closed with the aid of a screw cap.
  • At least one of the main surfaces of the folding carton can advantageously be provided with a series of openings 25 be seen through which the fill level in the inner bag can be observed.
  • FIG. 4 shows an alternative embodiment of a blank in sections.
  • the representation according to FIG. 4 is comparable to that of FIG. 1A and shows a modified configuration of the main surface 1 with side flaps attached to it.
  • the second main surface with associated side plates is configured identically and therefore does not need to be described or shown.
  • the embodiment according to FIG. 4 differs from that according to FIG. 1 in that the formation of a zigzag-shaped fold by the sector 23 in the manner of the cardboard fold, which is shown by the fold lines 7b, 8 and 9 in FIG. 1A is defined, is not provided. Instead, according to FIG. 4, the upper section 5b "of one of the side panels 5 attached laterally to the main surface 1 is offset from the main surface 1 by a cut 20, and the section 5b" has a length that corresponds to the length of the oblique fold line 8.
  • the side straps 12 attached laterally to the head surface 3 must therefore be correspondingly shorter, as shown in FIG. 4. 1A, a folding line 8 also runs, comparable to the exemplary embodiment according to FIG.
  • a triangular opening 10 is formed in the main surface 1 in the region where the fold line 8 opens into the connection point between the fold lines 6 and 7a.
  • the side panel on the main surface 1 in the lower region, which is delimited by the fold line 7a consists only of a side panel section 5a.
  • a flap 21 which essentially describes an obliquely angled quadrilateral and is dimensioned such that when it is folded up on the erected folding box perpendicular to the plane described by FIG. 4, it abuts the essentially triangular side flap 22, which is attached to the oblique fold line 8 of the opposite main surface.
  • This folding box is completely comparable to the one pre-glued according to FIGS. 1A and 1B and can also be erected in a comparable manner, possibly provided with a filling and pouring spout, and its inner bag can also be sealed in a comparable manner.
  • the erected folding box is closed in somewhat different ways.
  • the comparatively short lower side flap 5a is folded in.
  • the side flaps 21 and 22 attached to the oblique fold lines 8 must be folded in.
  • the sequence can also be interchanged in such a way that the first to the oblique folding lines 8 attached side flaps 21 and 22 who are folded before the short side flap 5a "is folded over, or the aforementioned folding processes take place at the same time.
  • the long side flap 5 can only be folded over when the side flaps 21 and 22 are folded over.
  • the side flaps 12 attached to the top surface 3 can first be folded down and, if appropriate, glued to the side flaps 21 and 22, whereupon the side flap 5 and its upper section are finally folded over 5b "is angled and glued onto the now inclined surfaces.
  • glue the side straps 12 attached to the top surface 3 to the upper side flap sections 5b comparable to the example according to FIG. 2.
  • FIGS. 2 and 3 it can also be seen from FIGS. 2 and 3 that it is easily possible to open the packaging container shown there in such a way that one of the side flaps 12 fastened to the head surface 3 is removed from its base on which it is fastened, namely the upper side flap section 5b is released, as a result of which the bag tip 19 is accessible. The latter can then be pulled forward on this or also on the upper side flap sections 5b and 5b 'which are glued one above the other, the folded sector 23 being erected between the fold lines 7b and 8. This results in a pouring opening, so that after the tip 19 has been cut off from the inner bag, its contents can be emptied very easily.
  • FIGS. 1 to 3 shows a modification of the exemplary embodiment of the invention according to FIGS. 1 to 3.
  • the body of the packaging container is also bevelled on both sides in the lower region.
  • These bevels are formed in a completely comparable manner to those in the upper area by corresponding fold lines, flaps and folds, which have already been explained with reference to FIGS. 1 to 3.
  • the side flaps 14 on the bottom flap 2 can be designed in the manner of the side flaps 12 on the head surface 3 in order to be glued to the overlapping side flaps 5 from the outside.
  • the side flaps 12 can be made so long that they cover the side flap sections 5b over their entire length.
  • FIGS. 6 and 7 show an embodiment of the invention which is distinguished by rounded shoulders in the upper region of the packaging container. In this shoulder area, naturally no side flaps can be attached to the main surfaces, as the cut in FIG. 7 shows.
  • One main surface 1 has a bottom flap 2 at the end facing away from the top surface 3, to which lateral side flaps 14 and a guer running adhesive flap 16 are connected.
  • Cover tabs 12 are attached to the side of the head surface 3, each of which has a length which corresponds to the arc length of the round edge sections 8 '.
  • the cover flaps are each extended by an adhesive flap 12a, which is intended to be glued between the adjacent side flaps 5, which is shown in broken lines in FIG. 6.
  • the packaging container corresponds to that according to FIGS. 1 and 3, as can also be seen from corresponding reference symbols. The details designated with them need not be explained again at this point.
  • the various bonds can be carried out using conventional techniques, especially using hot melt adhesives.
  • the fold lines are pressed into the cardboard material in a known manner in order to enable and favor the folding process.
  • Standard cardboard material as is generally used for folding boxes, is suitable as the material for the folding shafts, and the inner bag consists of a weldable material that is compatible with the contents to be accommodated, for example made of low-density polyester, which can be coated with a vapor barrier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)

Abstract

Récipient de conditionnement pour liquides consistant en une boîte pliable montée contenant une poche intérieure en matière plastique. Ce récipient de conditionnement comporte en sa partie supérieure, d'un côté ou des deux côtés, une face en pente, ce qui lui confère en gros l'aspect d'une bouteille de concentré pour lessive. Optionnellement, le récipient de conditionnement peut comporter un verseur servant aussi au remplissage, qui est doté d'un capuchon vissé; ce verseur est agencé soit sur la partie supérieure du récipient, soit sur l'une de ses faces en pente, des sections des surfaces principales (1, 4) de la boîte pliable pliées en zigzag étant alors tirées vers l'extérieur pour former une ouverture de versage par laquelle on peut atteindre la poche intérieure pour en couper le coin.
EP90906973A 1989-05-16 1990-05-14 Recipient de conditionnement en carton avec poche interne pour liquides Expired - Lifetime EP0491694B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90906973T ATE88969T1 (de) 1989-05-16 1990-05-14 Verpackungsbehaelter aus karton mit innenbeutel zur aufnhame von fluessigkeiten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915899 1989-05-16
DE3915899A DE3915899A1 (de) 1989-05-16 1989-05-16 Verpackungsbehaelter aus karton mit innenbeutel zur aufnahme von fluessigkeiten

Publications (2)

Publication Number Publication Date
EP0491694A1 true EP0491694A1 (fr) 1992-07-01
EP0491694B1 EP0491694B1 (fr) 1993-05-05

Family

ID=6380737

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90109057A Pending EP0398225A1 (fr) 1989-05-16 1990-05-14 Récipient d'emballage en carton avec sac interne pour contenir des liquides
EP90906973A Expired - Lifetime EP0491694B1 (fr) 1989-05-16 1990-05-14 Recipient de conditionnement en carton avec poche interne pour liquides

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90109057A Pending EP0398225A1 (fr) 1989-05-16 1990-05-14 Récipient d'emballage en carton avec sac interne pour contenir des liquides

Country Status (7)

Country Link
US (1) US5147062A (fr)
EP (2) EP0398225A1 (fr)
JP (1) JPH03506016A (fr)
CA (1) CA2033089A1 (fr)
DD (1) DD297938A5 (fr)
DE (2) DE3915899A1 (fr)
WO (1) WO1990014292A1 (fr)

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Title
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Also Published As

Publication number Publication date
EP0398225A1 (fr) 1990-11-22
DE3915899A1 (de) 1990-11-22
DD297938A5 (de) 1992-01-30
EP0491694B1 (fr) 1993-05-05
CA2033089A1 (fr) 1990-11-17
US5147062A (en) 1992-09-15
DE59001377D1 (de) 1993-06-09
JPH03506016A (ja) 1991-12-26
WO1990014292A1 (fr) 1990-11-29

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