EP0476428A1 - Package, especially for compressed articles - Google Patents

Package, especially for compressed articles Download PDF

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Publication number
EP0476428A1
EP0476428A1 EP91114908A EP91114908A EP0476428A1 EP 0476428 A1 EP0476428 A1 EP 0476428A1 EP 91114908 A EP91114908 A EP 91114908A EP 91114908 A EP91114908 A EP 91114908A EP 0476428 A1 EP0476428 A1 EP 0476428A1
Authority
EP
European Patent Office
Prior art keywords
wall
tear lines
pack according
tear
bag
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.)
Withdrawn
Application number
EP91114908A
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German (de)
French (fr)
Inventor
Karl H. Dr. Sengewald
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.)
Karl H Sengewald GmbH and Co KG
Original Assignee
Karl H Sengewald 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 Karl H Sengewald GmbH and Co KG filed Critical Karl H Sengewald GmbH and Co KG
Publication of EP0476428A1 publication Critical patent/EP0476428A1/en
Withdrawn legal-status Critical Current

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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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles

Definitions

  • the invention relates to a pack of the type specified in the preamble of claim 1, namely a pack with a rectangular gusseted bag.
  • Packs for diapers, sanitary napkins and other flexible packaged goods are increasingly being designed in such a way that the packaged goods are introduced into a bag in a compressed state and the bag is then closed.
  • Gusseted bags can be used as bags for such packaged goods. These are bags that are made from tubing with folded gussets. When the bags are opened, the end walls of the bag emerge from the side folds. A perforation is provided on the bag to remove the contents of the pack. Such a perforation is usually located on one of the main walls of the bag. The user can reach into this main wall and pull out a tab delimited by the perforation. In the case of compressed packaged goods, however, the pack then bends and deforms because the main walls absorb the tensile stresses exerted by the packaged goods.
  • a package is known from EP 0 349 050 A2 in which compressed packaged goods are contained in a gusseted bag.
  • a perforation delimited by tear lines is provided as an opening device on one of the end walls and extends only over part of the width of this end wall.
  • the tab is pulled open, the side regions of the end wall are retained, so that the bag essentially retains its rectangular configuration and the end wall continues to keep the packaged goods compressed.
  • the packaged goods can be removed through the opening that is formed, with lateral deformation.
  • a disadvantage of this pack is that it has to be opened to open the end wall of the bag in order to grasp part of the tab delimited by the tear lines and then to open it.
  • a handle can be attached to the tab, but this requires additional manufacturing and material use. However, the handle does not guarantee that the tear line is defined. The bag material can therefore tear outside the tear line. Because of the remaining parts of the end wall, it is difficult to remove the objects from the bag.
  • the invention has for its object to provide a package of the type specified in the preamble of claim 1 in such a way that it can be opened easily and in a defined manner, the tearing of the tear seams at an easily accessible location being carried out in a simple manner and with high accuracy.
  • the pack according to the invention has a gusseted bag with a grip part.
  • a gusseted bag is made from a tube of film material or paper material, which is provided with gussets in a known manner. This tube is first welded or sealed in the transverse direction along two connecting seams. These connecting seams delimit the handle part, in which a handle recess can be made at the same time or later. The bag is then spread open at its lower end in order to introduce the filling material. Then the bottom wall of the bag is closed.
  • a side-gusset bag has a handle part which projects upwards from the packaged goods space and consists of extensions of the side walls.
  • the handle part is essentially two-ply, but has four-ply areas at its ends, in which the folded extensions of the end walls are located.
  • the tear lines are provided on the handle part and in the wall parts of the top wall.
  • the grip part is gripped with both hands, one hand engaging the main part of the grip part, while the other hand engages the tearable part of the grip part.
  • the opening of the tear-open thus takes place by gripping a single (multi-layer) wall which is formed by the handle part. This enables the tear lines to be defined in a defined manner. After the tear lines along the handle part are torn open, the tearing process continues in the single-layer wall parts of the top wall.
  • tear tab in the top wall, which extends to the end wall of the bag.
  • the contents of the bag can be pulled out through the generally triangular opening which is exposed by this tear-open tab.
  • the tear tab can also extend into the end wall of the bag.
  • the part which extends into the end wall can have a triangular, parabolic or other configuration, parts of the end wall generally being left intact in order to withstand the pressure of the compressed packaged goods.
  • the gusseted bag of the pack according to the invention can consist of plastic film, in particular polyethylene film, or also of paper that is provided with a hot melt coating. In both cases, the transverse connecting seams can be produced thermally in a simple manner. After the tear-open tab has been torn off, the bag maintains its shape because the opening extends in a defined form only over those wall parts which do not absorb any significant forces in response to the force of the compressible packaged goods.
  • the pack shown in FIG. 1 in the filled and closed state has a side gusset bag 10 which is generally cuboid or rectangular in shape and has two parallel main walls 11, two end walls 12, a bottom wall 13 and an upper wall 14.
  • the bottom wall 13 is closed by a lower connecting seam 15, in which folds 16 of the end walls 12 are integrated. Another type of bottom folding can also be provided.
  • the top wall 14 consists of two wall parts 14a and 14b which represent extensions of the main walls 11 and which are connected to one another by an upper connecting seam 17 which extends from one end wall 12 to the opposite end wall 12.
  • Raised from the upper connecting seam 17 in the manner of a rooster comb is the rectangular handle part 18, which is provided with a punched-out grip 19 and is delimited at the upper end by a further connecting seam 20.
  • the handle part 18 consists of the two extensions of the main walls 11 and the upper wall parts 14a and 14b and it is generally in two layers. At the ends, however, the grip part 18 has four-layer sections 21, in which the folds of the side folds 24 of the former side fold fold tube are located.
  • tear lines 22 are provided, which are shown in the drawings by dotted lines. These tear lines 22 can be formed from perforations, weakening lines or, to be explained later, from the weakened edges of welding or sealing surfaces.
  • a first tear line section 22a extends in the vertical direction across the handle part 18 from the connecting seam 20 to the connecting seam 17.
  • This section 22a runs in the two-layer region of the handle part 18 along the boundary to the four-layer region 21.
  • the four-layer region 21 thus forms a stiffened handle, which is part of the subsequent pull tab.
  • a tear notch 23 At the upper end of section 22a is a tear notch 23 to facilitate scribing.
  • the tear lines 22 run congruently to one another in both layers.
  • the tear lines 22 diverge in the form of the diverging sections 22b, which each lead to the upper corner regions of the packing space, i.e. to the upper corners 23 of the relevant end wall 12.
  • FIGS. 1 and 2 further sections 22c of the tear lines 22 extend from the corners 23 into the end wall 12. These sections 22c converge and they can be connected to one another in a transition section 22d. If the transition section 22d is present, the tear-off tab 25 delimited by the tear lines 22 is torn off from the bag 10 as a whole. However, if the tear-off tab is to remain on the bag, the sections 22c are not connected to one another, which is indicated in the drawings by a dash-dotted line 26.
  • Fig. 2 shows the tearing of the tab 25, which is detected in the four-layer area 21 and pulled off.
  • the packaged goods 27 are then exposed for removal.
  • the packaged goods 27 consist, for example, of baby diapers, which have been introduced into the bag 10 in a compressed state, the compression pressure between the end walls 12 of the bag being effective. It can be seen that the triangular shape of the opening 28 in the top wall 14 allows this top wall to transmit longitudinal forces between the end walls 12 and that by tearing off the tab 25 the bag shape is not changed.
  • the part of the opening 25 located in the region of the end wall 12 also allows wall regions to remain over the entire height of the end wall.
  • FIG. 4 shows a part of the bag hose from which the bags 10 5, wherein the portions 14b and 14c of the perforation are already attached to the flat tube in the bag making machine.
  • the side gussets 24 are then folded in and the connecting seams 17 and 20 are produced on the tube which has been laid flat and has gusseted side gussets. 5 only serves to explain the different positions and folds of the bag.
  • the hose or pouch is never in the condition shown in the figures when it is manufactured. 4 and 5 are shown to illustrate the bag structure. From Fig.
  • sections 22b and 22c of the tear lines 22 are already attached in the bag tube, it is expedient to produce the sections 22a only on the finished handle, that is to say during or after the production of the connecting seams 17 and 20. In this way, the sections 22a can better in mutual agreement.
  • the two uppermost layers of the three-layer regions 32 are welded or sealed to one another, which is indicated by the hatching.
  • a line of weakness usually forms at the edge of a welding area or weld.
  • a weakening line 22b is created, so that the application of a perforation is not necessary.
  • the top wall does not contain any holes at this point, so that the package remains watertight.
  • the sections 22a can be produced as perforations.
  • a weld seam or welding surface for connecting the two upper layers of the three-layer region 32 can be made by inserting a welding tool into the gap in the fold 31 and pressing another welding tool from the outside against the wall part 14a or 14b of the upper wall 14.
  • the tear lines consist of perforations.
  • these perforations are arranged over the fold 31, i.e. the edges 33 of the fold 31 project further inwards than the sections 22b. Water that penetrates through the perforation is kept away from the packaged goods by the fold 31.
  • the section 22b of the tear lines runs along or at least in the vicinity of the edge of the fold 31. As a result, the tearing process is carried out through the edge of the fold.

Abstract

The package has a laterally folded bag (10). For tearing open, tearing lines (22) are provided which begin at the handle (18) and initially run congruently. In the upper wall parts (14a, 14b), the tearing lines diverge towards the corners (23) in order to end in the end wall (12) or to converge again. For tearing open, the four-layered region (21) of the handle (18) is pulled. The tearing then takes place in a defined manner, there being produced along the upper wall (14) a removal opening which can extend into the end wall (12). …<IMAGE>…

Description

Die Erfindung bezieht sich auf eine Packung der im Oberbegriff des Patentanspruchs 1 angegebenen Art, nämlich eine Packung mit einem rechteckigen Seitenfaltenbeutel.The invention relates to a pack of the type specified in the preamble of claim 1, namely a pack with a rectangular gusseted bag.

Packungen für Windeln, Binden und anderes flexibles Packgut werden in zunehmendem Maße derart konzipiert, daß das Packgut in komprimiertem Zustand in einen Beutel eingebracht und der Beutel dann verschlossen wird. Als Beutel für derartiges Packgut können Seitenfaltenbeutel benutzt werden. Dies sind Beutel, die aus einem Schlauchmaterial mit eingefalteten Seitenfalten hergestellt werden. Durch Öffnen der Beutel entstehen aus den Seitenfalten die Stirnwände des Beutels. Zum Entnehmen des Packungsinhalts ist an dem Beutel eine Perforation vorgesehen. Üblicherweise befindet sich eine solche Perforation an einer der Hauptwände des Beutels. Der Benutzer kann in diese Hauptwand eingreifen und eine von der Perforation begrenzte Lasche herausziehen. Bei komprimiertem Packgut verbiegt und verformt sich dann jedoch die Packung, weil die Hauptwände die von dem Packgut ausgeübten Zugspannungen aufnehmen.Packs for diapers, sanitary napkins and other flexible packaged goods are increasingly being designed in such a way that the packaged goods are introduced into a bag in a compressed state and the bag is then closed. Gusseted bags can be used as bags for such packaged goods. These are bags that are made from tubing with folded gussets. When the bags are opened, the end walls of the bag emerge from the side folds. A perforation is provided on the bag to remove the contents of the pack. Such a perforation is usually located on one of the main walls of the bag. The user can reach into this main wall and pull out a tab delimited by the perforation. In the case of compressed packaged goods, however, the pack then bends and deforms because the main walls absorb the tensile stresses exerted by the packaged goods.

Aus EP 0 349 050 A2 ist eine Packung bekannt, bei der komprimiertes Packgut in einem Seitenfaltenbeutel enthalten ist. Als Öffnungsvorrichtung ist an einer der Stirnwände eine durch Reißlinien begrenzte Perforation vorgesehen, die sich nur über einen Teil der Breite dieser Stirnwand erstreckt. Beim Aufziehen der Lasche bleiben die Seitenbereiche der Stirnwand erhalten, so daß der Beutel seine rechteckige Konfiguration im wesentlichen beibehält und die Stirnwand das Packgut weiterhin zusammengedrückt hält. Durch die entstehende Öffnung hindurch kann das Packgut unter seitlicher Deformierung herausgenommen werden. Ein Nachteil dieser Packung besteht darin, daß zum Öffnen in die Stirnwand des Beutels eingegriffen werden muß, um einen Teil der von den Reißlinien begrenzten Lasche zu ergreifen und anschließend aufzuziehen. Zwar kann an der Lasche ein Handgriff angebracht sein, jedoch erfordert dieses einen zusätzlichen Herstellungs- und Materialeinsatz. Durch den Handgriff wird ein definiertes Anreißen der Reißlinie jedoch nicht gewährleistet. Das Beutelmaterial kann daher außerhalb der Reißlinie einreißen. Wegen der stehenbleibenden Teile der Stirnwand ist das Entnehmen der Gegenstände aus dem Beutel schwierig.A package is known from EP 0 349 050 A2 in which compressed packaged goods are contained in a gusseted bag. A perforation delimited by tear lines is provided as an opening device on one of the end walls and extends only over part of the width of this end wall. When the tab is pulled open, the side regions of the end wall are retained, so that the bag essentially retains its rectangular configuration and the end wall continues to keep the packaged goods compressed. The packaged goods can be removed through the opening that is formed, with lateral deformation. A disadvantage of this pack is that it has to be opened to open the end wall of the bag in order to grasp part of the tab delimited by the tear lines and then to open it. A handle can be attached to the tab, but this requires additional manufacturing and material use. However, the handle does not guarantee that the tear line is defined. The bag material can therefore tear outside the tear line. Because of the remaining parts of the end wall, it is difficult to remove the objects from the bag.

Der Erfindung liegt die Aufgabe zugrunde, eine Packung der im Oberbegriff des Patentanspruchs 1 angegebenen Art derart auszubilden, daß sie einfach und definiert zu öffnen ist, wobei das Anreißen der Reißnähte an gut zugänglicher Stelle auf einfache Weise und mit hoher Genauigkeit durchführbar ist.The invention has for its object to provide a package of the type specified in the preamble of claim 1 in such a way that it can be opened easily and in a defined manner, the tearing of the tear seams at an easily accessible location being carried out in a simple manner and with high accuracy.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im Patentanspruch 1 angegebenen Merkmalen.This object is achieved according to the invention with the features specified in claim 1.

Die erfindungsgemäße Packung weist einen Seitenfaltenbeutel mit Griffteil auf. Ein solcher Seitenfaltenbeutel wird aus einem Schlauch aus Folienmaterial oder Papiermaterial hergestellt, welcher in bekannter Weise mit Seitenfalten versehen ist. Dieser Schlauch wird zunächst entlang zweier Verbindungsnähte in Querrichtung verschweißt oder versiegelt. Diese Verbindungsnähte grenzen das Griffteil ein, in dem gleichzeitig oder später eine Griffausnehmung angebracht werden kann. Anschließend wird der Beutel an seinem unteren Ende aufgespreizt, um das Füllgut einzubringen. Danach erfolgt das Verschließen der Bodenwand des Beutels. Ein solcher Seitenfaltenbeutel hat ein vom Packgutraum nach oben aufragendes Griffteil, das aus Verlängerungen der Seitenwände besteht. Das Griffteil ist im wesentlichen zweilagig, hat aber an seinen Enden jeweils vierlagige Bereiche, in denen sich die eingefalteten Verlängerungen der Stirnwände befinden. Bei einem derartigen Beutel mit aufragendem Griffteil sind erfindungsgemäß die Reißlinien am Griffteil und in den Wandteilen der Oberwand vorgesehen. Zum Öffnen des Beutels wird das Griffteil mit beiden Händen erfaßt, wobei eine Hand an dem Hauptteil des Griffteils angreift, während die andere Hand an dem abreißbaren Teil des Griffteils angreift. Der Anfang des Aufreißens erfolgt also durch Angreifen an einer einzigen (mehrlagigen) Wand, die von dem Griffteil gebildet wird. Dadurch ist ein definiertes Anreißen der Reißlinien möglich. Nachdem die Reißlinien entlang des Griffteils aufgerissen sind, setzt sich der Aufreißvorgang in den einlagigen Wandteilen der Oberwand fort. Dadurch entsteht in der Oberwand eine Aufreißlasche, die bis zur Stirnwand des Beutels reicht. Durch die in der Regel dreieckige Öffnung, die von dieser Aufreißlasche freigelegt wird, kann der Beutelinhalt herausgezogen werden. Die Aufreißlasche kann sich jedoch auch bis in die Stirnwand des Beutels hinein erstrecken. Derjenige Teil, der sich in die Stirnwand erstreckt, kann dreieckförmige, parabelförmige oder eine andere Konfiguration haben, wobei in der Regel Teile der Stirnwand unversehrt belassen werden, um dem Druck des komprimierten Packguts standzuhalten.The pack according to the invention has a gusseted bag with a grip part. Such a gusseted bag is made from a tube of film material or paper material, which is provided with gussets in a known manner. This tube is first welded or sealed in the transverse direction along two connecting seams. These connecting seams delimit the handle part, in which a handle recess can be made at the same time or later. The bag is then spread open at its lower end in order to introduce the filling material. Then the bottom wall of the bag is closed. Such a side-gusset bag has a handle part which projects upwards from the packaged goods space and consists of extensions of the side walls. The handle part is essentially two-ply, but has four-ply areas at its ends, in which the folded extensions of the end walls are located. In such a bag with a projecting handle part, the tear lines are provided on the handle part and in the wall parts of the top wall. To open the bag, the grip part is gripped with both hands, one hand engaging the main part of the grip part, while the other hand engages the tearable part of the grip part. The opening of the tear-open thus takes place by gripping a single (multi-layer) wall which is formed by the handle part. This enables the tear lines to be defined in a defined manner. After the tear lines along the handle part are torn open, the tearing process continues in the single-layer wall parts of the top wall. This creates a tear tab in the top wall, which extends to the end wall of the bag. The contents of the bag can be pulled out through the generally triangular opening which is exposed by this tear-open tab. However, the tear tab can also extend into the end wall of the bag. The part which extends into the end wall can have a triangular, parabolic or other configuration, parts of the end wall generally being left intact in order to withstand the pressure of the compressed packaged goods.

Durch das teilweise Öffnen der Oberwand des Beutels wird dessen Widerstandsfähigkeit gegen komprimiertes Packgut nicht wesentlich herabgesetzt. Einerseits nehmen die Hauptwände des Beutels die wesentlichen Zugspannungen auf, und andererseits entsteht in der Oberwand nur eine etwa dreieckförmige Öffnung, so daß die verbleibenden Wandteile Zugkräfte noch übertragen können.By partially opening the top wall of the bag, its resistance to compressed packaged goods is not significantly reduced. On the one hand, the main walls of the bag absorb the essential tensile stresses, and on the other hand only an approximately triangular opening is created in the upper wall, so that the remaining wall parts can still transmit tensile forces.

Der Seitenfaltenbeutel der erfindungsgemäßen Packung kann aus Kunststoffolie, insbesondere Polyäthylenfolie, bestehen, oder auch aus Papier, das mit einer Hotmelt-Beschichtung versehen ist. In beiden Fällen können die querlaufenden Verbindungsnähte auf einfache Weise thermisch hergestellt werden. Nach dem Abreißen der Aufreißlasche behält der Beutel seine Form bei, weil die Öffnung sich in definierter Form nur über solche Wandteile erstreckt, die keine wesentlichen Kräfte als Reaktion auf die Kraft des kompressiblen Packguts aufnehmen.The gusseted bag of the pack according to the invention can consist of plastic film, in particular polyethylene film, or also of paper that is provided with a hot melt coating. In both cases, the transverse connecting seams can be produced thermally in a simple manner. After the tear-open tab has been torn off, the bag maintains its shape because the opening extends in a defined form only over those wall parts which do not absorb any significant forces in response to the force of the compressible packaged goods.

Im folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.Exemplary embodiments of the invention are explained in more detail below with reference to the drawings.

Es zeigen:

  • Fig. 1 eine perspektivische Darstellung der Packung im geschlossenen Zustand,
  • Fig. 2 eine Teildarstellung von Fig. 1 während des Abreißens der Lasche,
  • Fig. 3 ein Ausführungsbeispiel, bei dem die Aufreißlinien in der Nähe der Beutelecken enden, so daß die Entnahmeöffnung nur in der Oberwand gebildet wird,
  • Fig. 4 die Struktur des Seitenfaltenbeutels vor dem Erzeugen der beiden das Griffteil begrenzenden querlaufenden Verbindungsnähte,
  • Fig. 5 eine schematische Darstellung des Schließens der Oberwand und der Bildung des Griffteils des Beutels,
  • Fig. 6 ein Ausführungsbeispiel, bei dem die Reißlinien entlang der Wandteile der Oberwand durch die Begrenzung von Schweiß- oder Siegelflächen gebildet werden und
  • Fig. 7 ein Ausführungsbeispiel, bei dem die Reißlinien Perforationen sind, welche durch die seitlichen Einfaltungen unterlegt sind, so daß Feuchtigkeit nicht direkt durch die Perforationen an das Packgut gelangen kann.
Show it:
  • 1 is a perspective view of the package in the closed state,
  • 2 is a partial view of FIG. 1 while the tab is torn off,
  • 3 shows an embodiment in which the tear lines end in the vicinity of the corners of the bag, so that the removal opening is formed only in the top wall,
  • 4 shows the structure of the gusseted bag before producing the two transverse connecting seams delimiting the handle part,
  • 5 is a schematic representation of the closing of the top wall and the formation of the handle part of the bag,
  • Fig. 6 shows an embodiment in which the tear lines along the wall parts of the top wall are formed by the delimitation of welding or sealing surfaces and
  • Fig. 7 shows an embodiment in which the tear lines are perforations, which are underlaid by the side folds, so that moisture cannot reach the packaged goods directly through the perforations.

Die in Fig. 1 im gefüllten und geschlossenen Zustand dargestellte Packung weist einen Seitenfaltenbeutel 10 auf, der insgesamt quaderförmig bzw. rechteckig ausgebildet ist und zwei parallele Hauptwände 11, zwei Stirnwände 12, eine Bodenwand 13 und eine Oberwand 14 hat. Die Bodenwand 13 ist durch eine untere Verbindungsnaht 15 geschlossen, in die Einfaltungen 16 der Stirnwände 12 miteingebunden sind. Es kann auch eine andere Art der Bodenfaltung vorgesehen sein.The pack shown in FIG. 1 in the filled and closed state has a side gusset bag 10 which is generally cuboid or rectangular in shape and has two parallel main walls 11, two end walls 12, a bottom wall 13 and an upper wall 14. The bottom wall 13 is closed by a lower connecting seam 15, in which folds 16 of the end walls 12 are integrated. Another type of bottom folding can also be provided.

Die Oberwand 14 besteht aus zwei Wandteilen 14a und 14b, die Fortsätze der Hauptwände 11 darstellen und die durch eine obere Verbindungsnaht 17 miteinander verbunden sind, welche sich von einer Stirnwand 12 bis zur gegenüberliegenden Stirnwand 12 erstreckt. Von der oberen Verbindungsnaht 17 ragt nach Art eines Hahnenkamms das rechteckige Griffteil 18 auf, das mit einer Griffausstanzung 19 versehen ist und am oberen Ende durch eine weitere Verbindungsnaht 20 begrenzt wird. Das Griffteil 18 besteht aus den beiden Verlängerungen der Hauptwände 11 bzw. der Oberwandteile 14a und 14b und es ist generell zweilagig. An den Enden weist das Griffteil 18 jedoch vierlagige Abschnitte 21 auf, in denen sich die Einfaltungen der Seitenfalten 24 des früheren Seitenfaltenschlauchs befinden.The top wall 14 consists of two wall parts 14a and 14b which represent extensions of the main walls 11 and which are connected to one another by an upper connecting seam 17 which extends from one end wall 12 to the opposite end wall 12. Raised from the upper connecting seam 17 in the manner of a rooster comb is the rectangular handle part 18, which is provided with a punched-out grip 19 and is delimited at the upper end by a further connecting seam 20. The handle part 18 consists of the two extensions of the main walls 11 and the upper wall parts 14a and 14b and it is generally in two layers. At the ends, however, the grip part 18 has four-layer sections 21, in which the folds of the side folds 24 of the former side fold fold tube are located.

Zum Öffnen des geschlossenen Beutels sind Reißlinien 22 vorgesehen, die in den Zeichnungen durch gepunktete Linien dargestellt sind. Diese Reißlinien 22 können aus Perforationen, Schwächungslinien oder in noch zu erläuternder Weise aus den geschwächten Rändern von Schweiß- oder Siegelungsflächen gebildet sein.To open the closed bag tear lines 22 are provided, which are shown in the drawings by dotted lines. These tear lines 22 can be formed from perforations, weakening lines or, to be explained later, from the weakened edges of welding or sealing surfaces.

Ein erster Reißlinienabschnitt 22a erstreckt sich in vertikaler Richtung quer durch das Griffteil 18 von der Verbindungsnaht 20 zur Verbindungsnaht 17. Dieser Abschnitt 22a verläuft im zweilagigen Bereich des Griffteils 18 entlang der Grenze zum vierlagigen Bereich 21. Der vierlagige Bereich 21 bildet somit einen versteiften Handgriff, der Bestandteil der späteren Aufreißlasche ist. Am oberen Ende des Abschnitts 22a befindet sich eine Einreißkerbe 23 zur Erleichterung des Anreißens. Im Abschnitt 22a verlaufen die Reißlinien 22 in beiden Lagen deckungsgleich zueinander. Am Fußpunkt des Abschnitts 22a, nämlich an der Verbindungsnaht 17, divergieren die Reißlinien 22 in Form der auseinanderlaufenden Abschnitte 22b, die jeweils zu den oberen Eckbereichen des Packungsraums führen, d.h. zu den oberen Ecken 23 der betreffenden Stirnwand 12.A first tear line section 22a extends in the vertical direction across the handle part 18 from the connecting seam 20 to the connecting seam 17. This section 22a runs in the two-layer region of the handle part 18 along the boundary to the four-layer region 21. The four-layer region 21 thus forms a stiffened handle, which is part of the subsequent pull tab. At the upper end of section 22a is a tear notch 23 to facilitate scribing. In section 22a, the tear lines 22 run congruently to one another in both layers. At the foot of section 22a, namely at the connecting seam 17, the tear lines 22 diverge in the form of the diverging sections 22b, which each lead to the upper corner regions of the packing space, i.e. to the upper corners 23 of the relevant end wall 12.

Bei dem Ausführungsbeispiel der Fign. 1 und 2 erstrecken sich von den Ecken 23 weitere Abschnitte 22c der Reißlinien 22 in die Stirnwand 12 hinein. Diese Abschnitte 22c konvergieren und sie können in einem Übergangsabschnitt 22d untereinander verbunden sein. Wenn der Übergangsabschnitt 22d vorhanden ist, wird die von den Reißlinien 22 begrenzte Abreißlasche 25 insgesamt von dem Beutel 10 abgerissen. Soll die Abreißlasche jedoch am Beutel verbleiben, so sind die Abschnitte 22c nicht untereinander verbunden, was in den Zeichnungen durch eine strichpunktierte Linie 26 angedeutet ist.In the embodiment of FIGS. 1 and 2, further sections 22c of the tear lines 22 extend from the corners 23 into the end wall 12. These sections 22c converge and they can be connected to one another in a transition section 22d. If the transition section 22d is present, the tear-off tab 25 delimited by the tear lines 22 is torn off from the bag 10 as a whole. However, if the tear-off tab is to remain on the bag, the sections 22c are not connected to one another, which is indicated in the drawings by a dash-dotted line 26.

Fig. 2 zeigt das Abreißen der Lasche 25, die in dem vierlagigen Bereich 21 erfaßt und abgezogen wird. Danach liegt das Packgut 27 zur Entnahme frei. Das Packgut 27 besteht beispielsweise aus Babywindeln, die in komprimiertem Zustand in den Beutel 10 eingebracht worden sind, wobei der Kompressionsdruck zwischen den Stirnwänden 12 des Beutels wirksam ist. Man erkennt, daß durch die Dreieckform der Öffnung 28 in der Oberwand 14 diese Oberwand noch Längskräfte zwischen den Stirnwänden 12 übertragen kann und daß durch das Abreißen der Lasche 25 die Beutelform nicht verändert wird. Auch der im Bereich der Stirnwand 12 liegende Teil der Öffnung 25 läßt über die gesamte Höhe der Stirnwand noch Wandbereiche stehen.Fig. 2 shows the tearing of the tab 25, which is detected in the four-layer area 21 and pulled off. The packaged goods 27 are then exposed for removal. The packaged goods 27 consist, for example, of baby diapers, which have been introduced into the bag 10 in a compressed state, the compression pressure between the end walls 12 of the bag being effective. It can be seen that the triangular shape of the opening 28 in the top wall 14 allows this top wall to transmit longitudinal forces between the end walls 12 and that by tearing off the tab 25 the bag shape is not changed. The part of the opening 25 located in the region of the end wall 12 also allows wall regions to remain over the entire height of the end wall.

Bei dem Ausführungsbeispiel nach Fig. 3 enden die Reißlinien an den Ecken 23 des Beutels, so daß eine Öffnung nur in der Oberwand 14 erzeugt wird, nicht aber in der Stirnwand 12. Fig. 4 zeigt einen Teil des Beutelschlauchs, aus dem die Beutel 10 gemäß Fig. 5 hergestellt werden, wobei die Abschnitte 14b und 14c der Perforation bereits in der Beutelherstellungsmaschine an dem flachliegenden Schlauch angebracht werden. Danach erfolgt das Einfalten der Seitenfalten 24 und das Herstellen der Verbindungsnähte 17 und 20 an dem flachgelegten und mit eingefalteten Seitenfalten versehenen Schlauch. Die Darstellung von Fig. 5 dient lediglich der Erläuterung der verschiedenen Lagen und Einfaltungen des Beutels. Der Schlauch oder der Beutel befinden sich bei ihrer Herstellung niemals in den Zuständen, die in den Fign. 4 und 5 zur Verdeutlichung der Beutelstruktur dargestellt sind. Aus Fig. 5 ist zu ersehen, daß im Handgriff 18 ein zweilagiger Bereich und an den Enden jeweils ein vierlagiger Bereich 21 vorhanden ist, der durch die Einfaltung 30 der Verlängerung des Materials der Stirnwand 12 entsteht. Unter den Enden der Oberwandteile 14a und 14b befinden sich ebenfalls Einfaltungen 31. Dort entstehen mit diesen zweilagigen Einfaltungen 31 und den Wandteilen 14a bzw. 14b jeweils dreieckförmige dreilagige Bereiche 32. Die Abschnitte 22b der Reißlinien 22 verlaufen eng benachbart zu den Kanten der dreilagigen Abschnitte 32.In the embodiment according to FIG. 3, the tear lines end at the corners 23 of the bag, so that an opening is only created in the upper wall 14, but not in the end wall 12. FIG. 4 shows a part of the bag hose from which the bags 10 5, wherein the portions 14b and 14c of the perforation are already attached to the flat tube in the bag making machine. The side gussets 24 are then folded in and the connecting seams 17 and 20 are produced on the tube which has been laid flat and has gusseted side gussets. 5 only serves to explain the different positions and folds of the bag. The hose or pouch is never in the condition shown in the figures when it is manufactured. 4 and 5 are shown to illustrate the bag structure. From Fig. 5 it can be seen that in the handle 18 there is a two-layer area and at the ends a four-layer area 21, which is caused by the folding 30 of the extension of the material of the end wall 12. Folds 31 are also located under the ends of the top wall parts 14a and 14b. There, these two-layer folds 31 and the wall parts 14a and 14b each produce triangular three-layer regions 32. The sections 22b of the tear lines 22 run closely adjacent to the edges of the three-layer sections 32 .

Während die Abschnitte 22b und 22c der Reißlinien 22 schon im Beutelschlauch angebracht werden, ist es zweckmäßig, die Abschnitte 22a erst an dem fertigen Handgriff zu erzeugen, also bei oder nach Herstellung der Verbindungsnähte 17 und 20. Auf diese Weise können die Abschnitte 22a besser in gegenseitige Übereinstimmung gebracht werden.While the sections 22b and 22c of the tear lines 22 are already attached in the bag tube, it is expedient to produce the sections 22a only on the finished handle, that is to say during or after the production of the connecting seams 17 and 20. In this way, the sections 22a can better in mutual agreement.

Bei dem Ausführungsbeispiel von Fig. 6 sind die beiden obersten Lagen der dreilagigen Bereiche 32 miteinander verschweißt oder versiegelt, was durch die Schraffur angedeutet ist. An der Kante eines Schweißbereichs oder einer Schweißnaht entsteht in der Regel eine Schwächungslinie. Durch Zusammenschweißen des Bereichs 32, entweder ganzflächig oder entlang einer Linie, entsteht eine Schwächungslinie 22b, so daß die Anbringung einer Perforation nicht erforderlich ist. Ein weiterer Vorteil besteht darin, daß an dieser Stelle die Oberwand keine Löcher enthält, so daß die Packung wasserdicht bleibt. Die Abschnitte 22a können dagegen als Perforation erzeugt werden. Das Anbringen einer Schweißnaht oder Schweißfläche zur Verbindung der beiden oberen Lagen des dreilagigen Bereichs 32 kann dadurch erfolgen, daß ein Schweißwerkzeug in den Spalt der Umfaltung 31 eingeführt und ein anderes Schweißwerkzeug von außen gegen das Wandteil 14a bzw. 14b der Oberwand 14 gedrückt wird.In the exemplary embodiment in FIG. 6, the two uppermost layers of the three-layer regions 32 are welded or sealed to one another, which is indicated by the hatching. A line of weakness usually forms at the edge of a welding area or weld. By welding the area 32 together, either over the entire surface or along a line, a weakening line 22b is created, so that the application of a perforation is not necessary. Another advantage is that the top wall does not contain any holes at this point, so that the package remains watertight. The sections 22a, on the other hand, can be produced as perforations. A weld seam or welding surface for connecting the two upper layers of the three-layer region 32 can be made by inserting a welding tool into the gap in the fold 31 and pressing another welding tool from the outside against the wall part 14a or 14b of the upper wall 14.

Bei dem Ausführungsbeispiel von Fig. 7 bestehen die Reißlinien aus Perforationen. Um zu vermeiden, daß Wasser auf direktem Wege von außen an das Packgut gelangen kann, sind diese Perforationen über der Umfaltung 31 angeordnet, d.h. die Ränder 33 der Umfaltung 31 ragen weiter nach innen als die Abschnitte 22b. Wasser, das durch die Perforation hindurchdringt, wird durch die Umfaltung 31 von dem Packgut ferngehalten.In the embodiment of FIG. 7, the tear lines consist of perforations. In order to avoid that water can reach the packaged goods directly from the outside, these perforations are arranged over the fold 31, i.e. the edges 33 of the fold 31 project further inwards than the sections 22b. Water that penetrates through the perforation is kept away from the packaged goods by the fold 31.

Bei allen Ausführungsbeispielen verläuft der Abschnitt 22b der Reißlinien entlang oder mindestens in der Nähe der Kante der Umfaltung 31. Dadurch wird der Aufreißvorgang durch die Kante der Umfaltung geführt.In all of the exemplary embodiments, the section 22b of the tear lines runs along or at least in the vicinity of the edge of the fold 31. As a result, the tearing process is carried out through the edge of the fold.

Claims (12)

1. Packung, insbesondere für kompressibles Packgut, mit einem rechteckigen Seitenfaltenbeutel (10), der zwei Hauptwände (11), zwei mit einer Seitenfalte (24) versehene Stirnwände (12), eine Bodenwand (13) und eine Oberwand (14) aufweist, wobei sich in der Mitte der Oberwand (14) eine obere Verbindungsnaht (17) erstreckt, von der ein aufragendes, mindestens zweilagiges Griffteil (18) absteht, und mit einer durch Reißlinien (22) begrenzten Aufreißlasche (25),
dadurch gekennzeichnet,
daß die Reißlinien (22) an dem aufragenden Griffteil (18) vorgesehen sind und sich mindestens bis zur Oberkante einer Stirnwand (12) erstrecken.1. Pack, in particular for compressible packaged goods, with a rectangular gusseted bag (10) which has two main walls (11), two end walls (12) provided with a gusset (24), a bottom wall (13) and an upper wall (14), wherein an upper connecting seam (17) extends from the middle of the top wall (14), from which a projecting, at least two-layered handle part (18) protrudes, and with a tear-open tab (25) delimited by tear lines (22),
characterized,
that the tear lines (22) are provided on the upstanding handle part (18) and extend at least to the upper edge of an end wall (12). 2. Packung nach Anspruch 1, dadurch gekennzeichnet, daß die Reißlinien (22) im Bereich des Griffteils (18) deckungsgleich zueinander verlaufen und unterhalb der oberen Verbindungsnaht (17) in die Wandteile (14a,14b) der Oberwand (14) hinein divergieren.2. Pack according to claim 1, characterized in that the tear lines (22) in the region of the handle part (18) run congruently to one another and diverge below the upper connecting seam (17) into the wall parts (14a, 14b) of the upper wall (14). 3. Packung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Reißlinien (22) von der oberen Verbindungsnaht (17) schräg zu den Wandteilen (14a,14b) der Oberwand in die Eckbereiche (23) des Beutels verlaufen.3. Pack according to claim 1 or 2, characterized in that the tear lines (22) from the upper connecting seam (17) obliquely to the wall parts (14a, 14b) of the upper wall in the corner regions (23) of the bag. 4. Packung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Reißlinien (22) sich in die Stirnwand (12) hinein erstrecken.4. Pack according to one of claims 1-3, characterized in that the tear lines (22) extend into the end wall (12). 5. Packung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Reißlinien (22) im Bereich der Stirnwand (12) mit gegenseitigem Abstand enden, derart, daß die Aufreißlasche (25) am Beutel verbleibt.5. Pack according to one of claims 1-4, characterized in that the tear lines (22) end in the area of the end wall (12) at a mutual distance such that the tear-open tab (25) remains on the bag. 6. Packung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß die Reißlinien (22) im Bereich der Stirnwand (12) untereinander verbunden sind, derart, daß die Aufreißlasche (25) vom Beutel trennbar ist.6. Pack according to one of claims 1-4, characterized in that the tear lines (22) in the region of the end wall (12) are interconnected, such that the tear-open tab (25) can be separated from the bag. 7. Packung nach einem der Ansprüche 1-6, dadurch gekennzeichnet, daß die Reißlinien (22) an dem Griffteil (18) längs der Falte einer Einfaltung (30) verlaufen, an der ein aus den Verlängerungen der Stirnwände (12) und der Hauptwände (11) bestehender vierlagiger Bereich (21) an einen zweilagigen Bereich, der nur aus Verlängerungen der Hauptwände (11) besteht, angrenzt, wobei die Reißlinien (22) im zweilagigen Bereich angeordnet sind.7. Pack according to one of claims 1-6, characterized in that the tear lines (22) on the handle part (18) run along the fold of a fold (30) on which one of the extensions of the end walls (12) and the main walls (11) existing four-layer area (21) adjoins a two-layer area which consists only of extensions of the main walls (11), the tear lines (22) being arranged in the two-layer area. 8. Packung nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß die Reißlinien (22) an den Wandteilen (14a,14b) der Oberwand (14) längs schräger Falten (33) verlaufen, die von Einfaltungen (31) in Verlängerung der Stirnwände (12) gebildet sind.8. Pack according to one of claims 1-7, characterized in that the tear lines (22) on the wall parts (14a, 14b) of the upper wall (14) run along oblique folds (33), the folds (31) in extension of the End walls (12) are formed. 9. Packung nach Anspruch 8, dadurch gekennzeichnet, daß die Reißlinien (22) gegenüber den Falten (33) derart versetzt sind, daß sie über der Einfaltung (31) liegen und mit dieser unterlegt sind.9. Pack according to claim 8, characterized in that the tear lines (22) with respect to the folds (33) are offset such that they lie over the fold (31) and are underlaid with this. 10. Packung nach einem der Ansprüche 1-9, dadurch gekennzeichnet, daß die Reißlinien (22) aus Perforationen bestehen.10. Pack according to one of claims 1-9, characterized in that the tear lines (22) consist of perforations. 11. Packung nach einem der Ansprüche 1-9, dadurch gekennzeichnet, daß die Reißlinien (22) aus den geschwächten Rändern von Schweißnähten oder Schweißflächen (32) bestehen.11. Pack according to one of claims 1-9, characterized in that the tear lines (22) consist of the weakened edges of weld seams or welding surfaces (32). 12. Packung nach einem der Ansprüche 1-11, dadurch gekennzeichnet, daß die Einfaltungen (31) in Verlängerung der Stirnwände (12) mindestens längs der Reißlinien (22) mit den Wandteilen (14a,14b) der Oberseite (14) verschweißt sind, wodurch längs der Schweißbereiche Schwächungslinien an den Wandteilen der Oberwand (14) gebildet sind.12. Pack according to one of claims 1-11, characterized in that the folds (31) in the extension of the end walls (12) are welded to the wall parts (14a, 14b) of the upper side (14) at least along the tear lines (22), whereby lines of weakness are formed along the welding areas on the wall parts of the upper wall (14).
EP91114908A 1990-09-07 1991-09-04 Package, especially for compressed articles Withdrawn EP0476428A1 (en)

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DE4028508 1990-09-07
DE4028508A DE4028508C2 (en) 1990-09-07 1990-09-07 Pack, in particular for compressible packaged goods

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US5219229A (en) 1993-06-15
DE4028508C2 (en) 1994-01-20
DE4028508A1 (en) 1992-03-12

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