EP0712785B1 - Wiederverschliessbare Öffnungsvorrichtung für einen Beutel - Google Patents

Wiederverschliessbare Öffnungsvorrichtung für einen Beutel Download PDF

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Publication number
EP0712785B1
EP0712785B1 EP95402583A EP95402583A EP0712785B1 EP 0712785 B1 EP0712785 B1 EP 0712785B1 EP 95402583 A EP95402583 A EP 95402583A EP 95402583 A EP95402583 A EP 95402583A EP 0712785 B1 EP0712785 B1 EP 0712785B1
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EP
European Patent Office
Prior art keywords
bag
edge
face
box
external face
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.)
Expired - Lifetime
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EP95402583A
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English (en)
French (fr)
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EP0712785A1 (de
Inventor
Henri Michoud
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Danone SA
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Groupe Danone SA
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Publication of EP0712785A1 publication Critical patent/EP0712785A1/de
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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
    • 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
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60—Loose, or loosely attached, linings

Definitions

  • the subject of the present invention is a device for closing and opening a package comprising a bag having a bag head of which the edges are joined to each other.
  • Such sachets or pouches are produced in continuous from a film according to the so-called process "flowpack", then put in box using a cartoner.
  • the European Patent EP-A-167 064 (NESTLE) has for object a reclosing type package comprising a outer envelope with a flap and a bag having a sachet head whose base is folded and pinched by the flap which is folded down for closing.
  • the opening of the bag takes place either by cutting the upper part of the head of the bag, either by tearing it using an organ tearing such as a wire or a strip.
  • British Patent GB-A-2,032,393 (TOPPAN PRINTING Co.) has for object a box lined with a bag which is not sealed at both ends and which is formed of a band folded back on itself and welded longitudinally, this welding being carried out between a internal face and an external face.
  • the opening of packaging is by tearing along the lines of precut which delimit the flap and the portion of the bag that doubles the flap.
  • the box is thus opened for clear a central region, the bag remaining held in the box by the remaining part of the upper panel of the box, on both sides of the flap. It is in practice necessary to make the bag of a material having a preferential direction of tearing, for lack of what we are dependent on the inherent defects of the character "spinning" usual materials.
  • the subject of the present invention is a device to ensure without deterioration the opening of a sachet having a sachet head whose internal edges are joined together and which does not requires neither manual cutting operation, nor setting work with specific pre-cutting means a tear in the bag.
  • the device allows in addition to ensuring at least partial reclosing of this one.
  • at least partial reclosure we mean a package closure which may not be strictly waterproof, but which nevertheless allows product storage for a period corresponding to the consumption of contents of the sachet.
  • a sachet has a sachet head having a first and a second edge secured to each other by their face internal with a first joining force the device comprises a first element having a first region secured to the external face of the first edge with a second joining force, and a second element having a second region secured to the outer face of the second edge with a third force of solidarity, and in that the second and third joining forces are greater than the first joining force.
  • joining force we mean in the sense of present request, the maximum force with which two edges, or an edge and an element, adhere to each other, force it takes to go beyond to get a separation of the edges, or of the edge and the element corresponding.
  • the first element can advantageously have a flap that extends and extends beyond of the bag head, said cooperating flap, in position closing, with the second element, for example by bonding, and / or by introduction of one end of the flap in a slot of the second element, the flap being folded around the head of the bag.
  • the first and / or second elements are advantageously respectively a cover and / or a front face of the box containing the sachet.
  • the bag is secured to the box that contains it only at the level of the bag head. This produces a rise in the bag when opening the box, which facilitates the gripping of products.
  • the front face of the box can include a front edge folded towards the cover of the box, and which is covered by it in said position of closing.
  • the bag head may have at its longitudinal ends of the inside edges or "tricks”.
  • the invention implements a sachet head, the edges of which are joined together with said first joining force by any known technique.
  • the faces sides of the box have a first and a second folded side edges which are covered by the cover of the box in said position of closure, which allows in particular to fold the inside edges of the package.
  • the bag head can be cold sealed.
  • the bag head can advantageously have at least one, and preferably two, weld lines for example heat seal. This provides a force of low joining while ensuring sealing from the sachet. Alternatively, the bag head has peelable streaks.
  • the bag head solder is a heat seal continuous surface of peelable type, for example of rectangular outline, and without streaks.
  • She advantageously has an opening force of the order 1N for a length of the order of 200 mm for example from 150 to 300 mm.
  • the sachet can advantageously include a longitudinal closure strip extending over the height of the bag and having a junction zone with one edge of the bag head.
  • the bag head may have, preferably in said junction zone, a portion located in which the internal faces of the first and of the second edge are more weakly secured one to each other so as to form a primer of decoupling.
  • the junction area is preferably arranged on the second edge of the bag head.
  • the first region of the first element presents advantageously an area located opposite the area junction.
  • the first region of the first element may have a surface smaller than that of the second region of the second element, and / or the first region of the first element can have a length, taken in the longitudinal direction of the head of the sachet, which is less than that of the second item.
  • the process comprises, during step a, a heat seal of the inner face of the first and second edges, said heat sealing being carried out in such a way that the area junction presents a localized region in which the inner faces of the first and second edges are more weakly united to each other so as to form a starting point for separation.
  • the sachet head has a heat seal surface of the peelable type and without streaks.
  • it can be carried out between 100 ° C and 180 ° C and especially between 125 ° C and 140 ° C, especially for a sack made of lacquered polypropylene, for example thick standard 26 ⁇ .
  • the bag head and the thermoweld jaws are preferably animated of a movement at reduced speed with respect to said movement speed, said movement possibly comprising a neutral point or a quasi-neutral point.
  • a soldering installation 52 comprises soldering irons 61 and 62 which may, for example, be heat-sealing irons, the various packages or bags 10 being separated by a cutting device 63 located between the irons 61 and 62.
  • the iron 61 makes it possible to make one or more heat-seal lines 20 (see FIG.
  • the heat-seal lines 20 arranged in the longitudinal direction of the bag head 17 make it possible to seal the latter while allowing its opening without tearing as will be shown later in the description.
  • the iron 62 which is used to heat seal the bottom of the bag 16 may conventionally include ridges arranged in the height direction of the packet, that is to say perpendicular to the longitudinal lines 20, so as to produce a heat seal classic.
  • the head of the bag 17 may also have ridges arranged in the height direction of the package, like those of the bottom of the bag 16, but in this case, it is preferable to bring the iron 61 to a lower temperature. to that which would be necessary to produce a true heat seal, so that the adhesion between the internal faces 46 and 47 of the edges 31 and 32 of the head 17 of the bag is relatively weak and that these can be easily separated without tearing of the head of the bag 17.
  • the material must be effectively brought to a temperature between 140 ° C and 150 ° C, which corresponds to a temperature of the heat seal irons which is from 180 ° C to 200 ° C, while if the material is only brought to a temperature between 80 ° C and 140 ° C, we obtain a less good adhesion characterized by its peelability, but which although not strictly watertight ("flesh on flesh” or "fine seal” type welding), ensures good preservation of the products.
  • a bag 10 contains two rows 41 and 42 superimposed of rusks, the front 11a and rear 11b faces of the package 10 connecting to the head of the bag 17 by a rounded region 15.
  • the reference 12 designates the lateral faces of the bag 10.
  • Figure 2b shows the head of the bag 17 in a hypothetical open position. We see the two edges 31 and 32 of the bag head 17 as well as the edges re-entrant sides 34 and 35 which can be provided therein and which form "picks" also heat sealed during sealing the bag 10 by the lines of heat seal 20 of Figure 2a.
  • the front side of the bag 10 has a weld over its entire height longitudinal 67, carried out flat, or in a fold of matter.
  • the solder 67 is connected at 68 to the lines heat-sealed 20, these lines 20 preferably being performed at a temperature such that, due to the extra thickness, adhesion is weaker in 68 than in the rest of lines 20, so as to produce a primer separation by facilitating the opening of the sachet 10.
  • Figure 3 shows a cartoner 70 flat in which the sachets 10 are introduced with a view to their casing in a cardboard box 1.
  • the cartoner 70 allows to close the bottom 4 of the box beforehand unfolded from a flattened box, while maintaining aligned with the rear face 9, the upper edge or cover 5 which is hinged at 38 to the rear face 9 and in 39 to a tongue 6, intended to be introduced, by example by a narrower end 7 in a slot 8, and keeping aligned with the front panel 2, a extension 18 articulated at 44 on the front face 2.
  • the extension 18 forms a folding front edge.
  • Package 1 coming out flat from the cartoner 70 is placed vertically in the device 80 which allows to close the upper edge 5 according to the steps shown in Figures 4a to 4d.
  • the box 1 is in a vertical position, this which allows to give a reference position to the sachet 10, the bottom 14 rests on the bottom 4 of the box 1, and the upper edge 5 as well as the flap 6 are placed in the alignment of the rear face 9.
  • the edge 18 articulated in 44 is placed in the extension of the front face 2.
  • the head of the bag 17 is initially in a vertical position.
  • the extension 18 is folded inwardly of the package to form a front edge and a bonding line or surface 22 of length l 4 which extends, for example by projection, extends over its external face 56 at least over part of its length.
  • the head of the bag 17 is folded towards the line or the adhesive surface 22 (FIG. 4b) then, the upper edge 5 which has on its internal face 55 a line or an adhesive surface 21 of length l 3 previously deposited, for example by projection, is also folded towards the head of the bag 17 (FIG. 4c), while the flap 6 is folded (FIG. 4d) around its articulation 39 so as to be glued by gluing points 65 and 66 to the front face 2 or well to engage in the slot 8 through its end 7.
  • the outer face 45 of the edge 31 of the bag head 17 is bonded to the inner face 55 of the upper edge 5 and the outer face 48 of the edge 32 is glued to the upper face 56 of the front edge 18.
  • the nature of the adhesive and the gluing surface along the lines or the surfaces 21 and 22 are chosen so that the edges 31 and 32 adhere strongly respectively to the upper edge 5 forming a cover and at the front edge 18 so that, l when an opening of the package shown in FIG. 5a, during which the upper edge 5 is spread in an opening direction, the heat-sealing lines 20 give way, while the bonding lines or surfaces 21 and 22 continue to 'ensure their function.
  • the package can then be opened as shown in Figures 5a to 5c by tearing off the points glue 65 and 66.
  • the high adhesion between the external faces 45 and 48 of the edges 31 and 32 and respectively the internal face 55 of the cover 5 and the upper face 56 of the folded front edge 18 contributes to avoid tearing of the head of the bag 17 during its opening.
  • the presence of a possible separation primer in the junction zone 68 facilitates opening.
  • the region 21 is located at least partially opposite the zone 68, and it is possible, for example, to have l 3 ⁇ l 4 .
  • the bag 10 When opening, the bag 10 lifts slightly, which makes it easier to grip the products.
  • the package can be closed from position shown in Figure 5c through the position shown in Figure 5b and that shown in Figure 5a to return to the position shown in Figure 4d, in which case, in the example represented by a heat seal, the bag head 17 is closed by simple fold over one of its edges 31 and 32 whose internal faces 46 and 47 are maintained applied against each other by the cover 5 which tends to close in on itself but that is to preferably closed by cooperation between the end 7 of the tongue 6 and the slot 8.
  • the side faces 3 of the box 1 have advantageously side edges 19 forming flaps lateral, articulated at 58, which allow, during the reseal the package, fold inward the "draws" 34 and 35 thus authorize a reclosing in two-stroke, first by folding down the extensions 19 to fold the "draws" 34 and 35 then, in folding the upper edge 5, to ensure closure as previously stated.
  • the extensions 19 may have a notched region 43 located at their ends adjacent to the front edge folded 18.
  • FIG. 1c shows for this purpose a set of two jaws of heat seal 101 and 102 having ridges 116 for the heat seal of the bag bottom 14, and ridges 120 and 121 for heat seal of lines 20.
  • a distance l 5 is provided between the ridges 121 and the cutting tool 63, so as to release a non-heat-sealed region for making the bondings 21 and 22.
  • the internal faces 46 and 47 of the edges 31 and 32 of the bag head 17 can also be secured by cold bonding, for example using pressure sensitive adhesive.
  • Figure 6 shows a variant of the invention, according to which the closure device and opening is attached to the bag head 17. It comprises a first rectangular element 85 of cardboard which is glued to one side of the bag head 17 and one second rectangular element 88 of cardboard which is glued on the other side of the bag head 17. Element 85 is extended by a flap 86 folded over the edges of the bag head 17. The flap 86 can be glued by points on element 88. A tongue 87 can be inserted into a slot 89 of the element 88.
  • Figure 7 shows another variant of the invention, according to which the closure device and opening is part of an outer tubular packaging 90 surrounding the front faces lla and rear llb of the bag 10 and the bottom 14.
  • the device has a region rectangular 95 extending the rear face 93 of the tubular packaging 90 and a rectangular region 98 glued to the other side of the bag head 17 and extending the front face 91 of the tubular packaging 90.
  • the region 95 is extended by a flap 96 folded over by above the edges of the bag head 17.
  • the flap 96 is glued by points on the region 98.
  • a tab (not shown) can be inserted into a slot in the region 98 or front face 91.
  • FIG. 8a represents an embodiment preferred thermoweld jaws allowing, depending on the preferred variant embodiment of the invention, to obtain a peelable surface heat seal 200 (from flesh-flesh type or "fine seal") remarkable in this sense that a weak and reproducible breakout force can be obtained while ensuring a level of tightness of the sachet compatible with the conservation of products such than rusks or cookies, and this by allowing the use of standard films, for example a film of 26 ⁇ (or 32 ⁇ ) thick coated polypropylene.
  • the metal jaws for heat sealing respectively upper 210 and lower 220 move in translation to bring them closer to one another, then by rotation about their respective axes 0 1 and 0 2 (in the direction of the arrows F 1 and F 2 ). They have smooth cylindrical regions 211 and 221 respectively which face each other and come to bear against each other during the passage of the bag head 17.
  • the jaws carry a cutting tool (212, 222).
  • the bottom of the bag is welded by another pair of jaws (not shown) which may be of a conventional type.
  • the cylindrical profiles 211 and 221 carry spacers, facing each other, namely 213 and 214 for the upper jaw of which they are a part, and 223 and 224 for the lower jaw in which they are incorporated.
  • the spacers 223 and 224 are for example parts made of PTFE housed in grooves of the lower jaw 220. The function of these spacers is to prevent that, when pressure is applied to the jaws for press against each other when welding the head bag, the irons do not come into contact with each other the other by their profiles 211 and 221. We thus obtain better reproducibility of the head weld bag.
  • the jaws are brought to a temperature which can be between 100 ° C and 180 ° C, especially between 120 ° C and 140 ° C, the preferred value for a cadence low (40 bps / min) being around 125 ° C for a film in standard type lacquered polypropylene, with pressure application for example of the order of 2 to 8 bars, for example 4 bars. All other things being equal, the jaw temperature should be higher as the rate is high.
  • Control of the movement of the jaws and pouches is carried out by stepper motors which allow fine control of the passage time and application of the jaws.
  • the application of bit takes place at reduced speed (can even cancel at a given time), which is in particular rendered possible by the presence of the extra length that represents the region 17 'of the bag head 17 folded between the are products 42 and the flap 18.
  • the temperature actually reached by the film constituting the sachet is thus made closer of the bit.
  • This force is compatible with ergonomics an opening by an average user.
  • this force aperture is about two times less than the opening force which would be obtained from a conventional (ribbed) sealing of the sachet head, modified to give it a peelability, and furthermore the reproducibility obtained is much higher.
  • the distance a (see fig. 8b) between the heat seal 200 and the bonding regions 21 and 22 is advantageously between 0 and 10 mm, the value 0 mm corresponding to the bonding regions 21 and 22 directly below the heat seal 200.
  • FIG. 8c represents a variant of the Figure 8b in which the end of the bag head 17 is glued at 21 to the flap 6 and at 22 to the front face 2, while the heat seal 200 is housed between the cover 5 and flap 18.

Claims (18)

  1. Verpackung, die dazu geeignet ist, geöffnet und wieder verschlossen zu werden und einerseits eine Schachtel (1) aufweist, die mit einem Deckel (5) versehen ist, der von einem ebenen, auf einer Rückseite (9) der Schachtel angelenkten Feld gebildet ist, und der, indem er mit einer Vorderseite (2) der Schachtel zusammenwirkt, geschlossen werden kann, wobei das ebene Feld eine Innenseite und eine Außenseite aufweist, sowie andererseits einen Beutelkopf (17), der einen ersten und Zweiten Rand (31, 32) hat, deren Innenseiten (46, 47) untereinander mit einer ersten Verbindungskraft verbunden sind, wobei der Beutel mit der Schachtel nur auf dem Niveau des Beutelkopfs verbunden ist, und die Außenseite (45) des ersten Rands (31) des Beutelkopfs direkt mit der Innenseite des ebenen Felds mit einer zweiten Verbindungskraft verbunden ist, dadurch gekennzeichnet, daß die Außenseite (48) des zweiten Rands (32) des Beutelkopfs (17) direkt mit einer dritten Verbindungskraft mit der Außenseite eines ebenen vorderen Rands (18) verbunden ist, der an die Vorderseite (2) der Schachtel angelenkt ist und in der Richtung des ebenen Felds (5) des Deckels heruntergeklappt ist und durch denselben in der Verschlußposition bedeckt ist, wobei die Zweite und die dritte Verbindungskraft höher als die erste Verbindungskraft ist, und derart, daß in der Verschlußposition der Verpackung und wenn das Paket in Vertikalposition auf seinen Boden (14) gestellt ist, der Beutelkopf (17) in die Horizontalposition zwischen dem ebenen Feld (5), welches den Deckel bildet, und dem umgebogenen vorderen ebenen Rand (18) umgebogen ist, daß während der ersten Öffnung der Schachtel die Öffnung des Beutelkopfs (17) ohne Durchreißen des Beutels bewirkt wird, daß während jeder Öffnung der Schachtel die Außenseite (48) des zweiten Rands (32) des Beutelkopfs mit dem umgebogenen vorderen Rand (18) verbunden bleibt, und daß sich die Außenseite (45) des ersten Rands (31) des Beutelkopfs (17) mit dem ebenen Feld (5) verlagert, indem sie in der Öffnungsposition ein Heben des Beutels erzeugt.
  2. Verpackung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Deckel (5) eine Klappe (6) hat, welche ihn verlängert, und welche sich jenseits des Beutelkopfs erstreckt, wobei die Klappe (6) in der Verschlußposition mit der Vorderseite (2, 18) durch Umbiegen der Klappe (6) um den Beutelkopf zusammenwirkt.
  3. Verpackung gemäß Anspruch 2, dadurch gekennzeichnet, daß die Vorderseite (2, 18) einen Schlitz (8) hat, in welchen das Ende (7) der Klappe eingreift.
  4. Verpackung, die dazu geeignet ist, geöffnet und wieder verschlossen zu werden und einerseits eine Schachtel (1) aufweist, die mit einem Deckel (5) versehen ist, welcher wenigstens von einem auf einer Rückseite (9) der Schachtel angelenkten ebenen Feld gebildet ist, und der geschlossen werden kann, indem er mit einer Vorderseite (2) der Schachtel zusammenwirkt, wobei das ebene Feld eine Innenseite und eine Außenseite aufweist, und andererseits einen Beutelkopf (17), der einen ersten und einen zweiten Rand (31; 32) hat, deren Innenseiten (46; 47) untereinander mit einer ersten Verbindungskraft verbunden sind, wobei der Beutel nur auf dem Niveau des Beutelkopfs mit der Schachtel verbunden ist, und die Außenseite (45) des ersten Rands (31) des Beutelkopfs mit dem Deckel mit einer zweiten Verbindungskraft verbunden ist, dadurch gekennzeichnet, daß der Deckel das ebene Feld und eine ihn verlängernde angelenkte Klappe (6) hat, daß die Außenseite (45) des ersten Rands (31) des Beutelkopfs (17) direkt mit der Innenseite der Klappe (6) verbunden ist, und daß die Außenseite (48) des Zweiten Rands (32) des Beutelkopfs (17) direkt mit einer dritten Verbindungskraft mit der Außenseite der Vorderseite (2) der Schachtel in einem Bereich der Vorderseite (2), auf den die Klappe (6) umgebogen ist, verbunden ist, wobei die zweite und die dritte Verbindungskraft höher als die erste Verbindungskraft ist, derart, daß in der Verschlußposition der Verpackung, und wenn das Paket in vertikaler Position auf seinen Boden (14) gestellt ist, der Beutelkopf (17) einen ersten, in Horizontalposition umgebogenen Bereich aufweist, sowie einen zweiten Bereich, der die Vorderseite (2) entlangläuft, daß während der ersten Öffnung der Schachtel die Öffnung des Beutelkopfs (17) ohne Einreißen des Beutels bewirkt wird, daß während der Öffnung der Schachtel die Außenseite (48) des zweiten Rands des Beutelkopfs (17) mit der Vorderseite (2) verbunden bleibt und daß sich die Außenseite (45) des ersten Rands des Beutelkopfs (17) mit dem Deckel (5, 6) verlagert, indem sie in der Öffnungsposition ein Aufsteigen des Beutels erzeugt.
  5. Verpackung gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Beutelkopf (17) an seinen Längsenden seitliche eingezogene Ränder (34, 35) hat.
  6. Verpackung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lateralseiten der Schachtel (1) einen ersten und einen zweiten heruntergeklappten seitlichen Rand (19) haben, die durch den Deckel (5) der Schachtel (11) in der Verschlußposition bedeckt sind.
  7. Verpackung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Beutelkopf (17) wenigstens eine Schweißlinie (20) oder abschälbare Streifen oder eine kontinuierliche abschälbare Oberfläche aufweist.
  8. Verpackung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Beutel ein Längsband (67) bzw. einen Längsstreifen (67) für den Verschluß hat, das bzw. der sich über die Höhe des Beutels erstreckt und eine Verbindungszone (68) mit einem Rand des Beutelkopfs (17) aufweist, daß der Beutelkopf (17) einen lokalisierten Teil (68) aufweist, in welchem die Innenseiten (46, 47) des ersten (31) und des zweiten (32) Rands leichter miteinander verbunden sind, derart, daß ein Anfangsstück bzw. Ansatz für das Lösen gebildet wird, und daß der lokalisierte Teil in der Verbindungszone (68) angeordnet ist.
  9. Verpackung gemäß Anspruch 8, dadurch gekennzeichnet, daß die Verbindungszone (68) auf dem zweiten Rand (32) des Beutelkopfs (17) angeordnet ist.
  10. Verpackung gemäß einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, daß der erste Bereich (21) des ersten Elements (5) eine Zone aufweist, die sich gegenüber der Verbindungszone (68) befindet.
  11. Verpackung gemäß Anspruch 10, dadurch gekennzeichnet, daß der erste Bereich (21) des ersten Elements (5) eine Oberfläche aufweist, die kleiner als jene des zweiten Bereichs (22) des zweiten Elements (2, 18) ist.
  12. Verpackung gemäß Anspruch 10, dadurch gekennzeichnet, daß der erste Bereich (21) des ersten Elements (5) eine Länge (l3), genommen in der Längsrichtung des Beutelkopfs, aufweist, die kleiner als jene (l4) des zweiten Bereichs (22) des zweiten Elements (2, 18).
  13. Verfahren für die Herstellung einer Verpackung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß es die folgenden Schritte enthält:
    a) Ausbilden von einzelnen Beuteln (10), die an beiden Enden (16, 17) geschlossen sind und einen Beutelkopf (17) aufweisen, der einen ersten und einen zweiten Rand (31, 32) hat, welche miteinander durch ihre Innenseite (46, 47) mit einer besagten ersten Verbindungskraft verbunden sind;
    b) Einführen des Beutels (10) in eine Schachtel (1), die in vertikaler Position in der Weise angeordnet ist, daß der Beutelkopf vertikal und benachbart dem nichtumgebogenen Deckel (5) der Schachtel ist;
    c) Umbiegen des Beutelkopfs (17) zu einer ersten Zeit nach einer Klebstofflinie oder einer Klebstoffoberfläche (22) der Außenseite der Vorderseite (2) oder des vorderen Rands (18) und Umbiegen des Deckels (5, 6) zu einer zweiten Zeit derart, daß einerseits die Innenseite des Deckels (5) für den Verschluß der Schachtel und andererseits die Außenseite der Vorderseite (2, 18) oder eines vorderen Rands (18) der Vorderseite (2, 18) der Schachtel mit der Außenseite (45) des er sten Rands (31) bzw. mit der Außenseite (48) des zweiten Rands (32) des Beutelkopfs (17) verbunden wird, derart, daß die Innenseite (55) des Deckels (5) mit der Außenseite (45) des ersten Rands (31) mit der genannten zweiten Verbindungskraft verbunden wird, und daß die Außenseite der Vorderseite oder des vorderen Rands der Vorderseite (56) mit der Außenseite (48) des zweiten Rands (32) mit der genannten dritten Verbindungskraft verbunden wird, wobei die zweite und die dritte Verbindungskraft höher als die erste Verbindungskraft ist.
  14. Verfahren gemäß Anspruch 13, dadurch gekennzeichnet, daß es vor dem Schritt a) den folgenden Schritt ao hat:
    ao) Ausbilden eines kontinuierlichen Einsackungsschlauchs (50), der mit einer gegebenen Vorbeiziehgeschwindigkeit vorbeizieht, in welchen einzusackende Produkte (51) in gegebenen Mengen in vorbestimmten Intervallen angeordnet werden, und Verschließen dieses Schlauchs (50) durch ein Verschlußlängsband (67), das eine Verbindungszone (68) mit einem Rand des Beutelkopfs (17) hat.
  15. Verfahren gemäß Anspruch 14, dadurch gekennzeichnet, daß im Schritt a eine Wärmeverschweißung der Innenseite (46, 47) des ersten (31) und zweiten (32) Rands bewerkstelligt wird, wobei die Wärmeverschweißung in der Art und Weise ausgeführt wird, daß die Verbindungszone (68) einen lokalisierten Bereich aufweist, in welchem die Innenseiten (46, 47) des ersten (31) und des zweiten (32) Rands leichter miteinander verbunden sind, derart, daß ein Ansatz bzw. ein Anfangsstück des Lösens gebildet wird.
  16. Verfahren gemäß einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß im Schritt a eine abschälbare Thermoverschweißung (200) des ersten und zweiten Rands (31, 32) gemäß einer kontinuierlichen Oberfläche bewerkstelligt wird.
  17. Verfahren gemäß Anspruch 16, dadurch gekennzeichnet, daß die Thermoverschweißung (200) mit einer verminderten Längsgeschwindigkeit bezüglich der Geschwindigkeit des Vorbeiziehens des Einsackungsschlauchs (50) ausgeführt wird.
  18. Verfahren gemäß einem der Ansprüche 16 oder 17, dadurch gekennzeichnet, daß der Einsackungsschlauchs (50), ausgehend von einem Polypropylenfilm, hergestellt wird und daß die Temperatur der Thermoverschweißungsabschnitte zwischen 100°C und 180°C, und insbesondere zwischen 120°C und 140°C, liegt.
EP95402583A 1994-11-18 1995-11-17 Wiederverschliessbare Öffnungsvorrichtung für einen Beutel Expired - Lifetime EP0712785B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9413836A FR2727088B1 (fr) 1994-11-18 1994-11-18 Dispositif de fermeture et d'ouverture d'un emballage comportant un sachet
FR9413836 1994-11-18

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EP0712785A1 EP0712785A1 (de) 1996-05-22
EP0712785B1 true EP0712785B1 (de) 1998-10-21

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EP95402583A Expired - Lifetime EP0712785B1 (de) 1994-11-18 1995-11-17 Wiederverschliessbare Öffnungsvorrichtung für einen Beutel

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EP (1) EP0712785B1 (de)
AT (1) ATE172420T1 (de)
AU (1) AU4181296A (de)
DE (1) DE69505482D1 (de)
FR (1) FR2727088B1 (de)
WO (1) WO1996015947A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0720604D0 (en) * 2007-10-22 2007-11-28 Meadwestvaco Packaging Systems Package with opening feature

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337891A (en) * 1941-08-16 1943-12-28 Pneumatic Scale Corp Package
US3051367A (en) * 1960-10-13 1962-08-28 Armour & Co Container
US3233818A (en) * 1964-07-15 1966-02-08 Diamond Int Corp Reclosable carton and blank
US4032060A (en) * 1975-12-24 1977-06-28 Bergstein Packaging Trust Carton with self-sealing reclosable end closure
GB2032393B (en) * 1978-08-17 1982-11-03 Toppan Printing Co Ltd Lined boxes
CH656857A5 (fr) * 1984-07-05 1986-07-31 Nestle Sa Emballage.

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Publication number Publication date
EP0712785A1 (de) 1996-05-22
WO1996015947A1 (fr) 1996-05-30
FR2727088A1 (fr) 1996-05-24
DE69505482D1 (de) 1998-11-26
FR2727088B1 (fr) 1997-01-17
ATE172420T1 (de) 1998-11-15
AU4181296A (en) 1996-06-17

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