EP2138406A1 - Sack and device for emptying a sack - Google Patents
Sack and device for emptying a sack Download PDFInfo
- Publication number
- EP2138406A1 EP2138406A1 EP09007748A EP09007748A EP2138406A1 EP 2138406 A1 EP2138406 A1 EP 2138406A1 EP 09007748 A EP09007748 A EP 09007748A EP 09007748 A EP09007748 A EP 09007748A EP 2138406 A1 EP2138406 A1 EP 2138406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover sheet
- bottom flaps
- flaps
- bag
- corner
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0008—Opening and emptying bags
-
- 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
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/741—Spouts for containers having a tubular body
- B65D5/742—Spouts formed by deforming or tearing the closure flaps or severed or incised parts of the closure flaps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S383/00—Flexible bags
- Y10S383/906—Dispensing feature
Definitions
- the invention relates to a method for emptying a bag, which has at least one cross bottom covered with a bottom cover sheet, which has a substantially rectangular shape and is glued from narrow sides folded over fold lines corner bumps and wide side walls folded over fold lines bottom flaps.
- the invention further relates to a bag, which is formed by at least one layer of material, which is a closed, malleable to a substantially rectangular cross-section with narrow side walls and wide side walls malleable hose having at a first end a closable filling opening and at least one of its Ends glued to a cross-bottom with angled from the narrow side walls corner fences and with the wide side walls angled bottom flaps and covered with a cross bottom covering ground cover sheet.
- a bag which is formed by at least one layer of material, which is a closed, malleable to a substantially rectangular cross-section with narrow side walls and wide side walls malleable hose having at a first end a closable filling opening and at least one of its Ends glued to a cross-bottom with angled from the narrow side walls corner fences and with the wide side walls angled bottom flaps and covered with a cross bottom covering ground cover sheet.
- a cross bottom can be provided on both ends of the bag tube, wherein in particular one of the cross bottoms, a valve is used, so that a fillable by a bag filling machine valve bag is formed.
- a valve is used, so that a fillable by a bag filling machine valve bag is formed.
- a filled bag should be sealed as tightly as possible to avoid dusting of material even when dusty.
- the bag When the filled bag has been transported to its destination where the bottled product is to be used, the bag is torn open to dump or otherwise remove the bottled material. Since the bag bottom consists of numerous layers that have been glued together, the bag bottom is not suitable for the tearing process. The tearing of the bag below the bottom takes place in the tubular material of the jacket wall of the bag. In a free tearing it is more common that the crack produced does not extend in the desired manner transverse to the longitudinal axis of the bag, but is formed obliquely with a component in the axial direction.
- a remedy may be that the bag is opened with a sharp cutting instrument in the form of a pair of scissors or a knife.
- a disadvantage of this is the resulting time required for the opening of the bag and the fact that for the opening of the bag always an extra provided and functional held aids is required.
- the present invention is therefore based on the object to enable the emptying of a bag without tools and without the risk of hardly avoidable contamination.
- the tearing of the bag for the purpose of its emptying in the bottom area is carried out by the bottom cover sheet is at least partially deducted from the overlapping bottom flaps.
- This peeling off can be assisted by a suitable gluing of the bottom cover sheet and / or by providing the bottom cover sheet with a peel-off aid, for example in the form of a tear-off strip.
- the inventive method thus allows the formation of a discharge opening in the region of the bottom, wherein the tearing process occurs during detachment of the bottom cover sheet and tearing of the bottom flaps in the bottom region and therefore is uncritical for the bottled in the bag product. Any oblique tears remain in the bottom area and do not cause unintentionally bottled product leaking from the bag.
- the inventively designed discharge chute allows a safe dumping of the product from the bag, the limitation of the discharge chute is not made by torn bag walls, but taking advantage of the cut edges produced in the production of the bag.
- a bag of the type mentioned above is further characterized in that the bottom cover sheet is peeled off from a narrow side wall starting at least over a portion of the cross bottom on the respective Eckeinschlag that at least one of the bottom flaps in a not more lying on the corner hitting area at least one tear-open to separate a portion of the bottom flaps so that the separated parts of the bottom flaps together with the drawn outward corner hump form a discharge chute.
- the peelability of the ground cover sheet can be assisted by suitable bonding of the ground cover sheet to the ground.
- a bond between the ground cover sheet and the corner impact may be provided, which does not continue in the region of the bottom flaps.
- the peelability of the bottom cover sheet may be further assisted by a tear strip in the bottom cover sheet.
- the recess of the bottom flap which is provided as a tear-open, is limited to less than half the length of the bottom flaps.
- the incision extends only over the area in which the two bottom flaps overlap each other, so that the incision causes no impairment of the tightness of the cross base for the transport of the product from the filling station to the place of use.
- the present invention is particularly suitable for sacks made of easily rupturable materials, such as kraft paper sacks.
- the sacks can also be designed in multiple layers.
- the present invention can also be implemented on suitable plastic bags, in particular if the tear-open aid possibly extends over the entire length of the tear lines.
- perforation lines, in particular slot perforations come into consideration as tear-open aids.
- FIG. 1 shows a tubular jacket wall 1 of a bag, which is folded on two sofaltlinien 2, 3 for flattening the layers of the jacket wall 1 to each other.
- the tubular jacket wall 1 is formed from a flat material by folding on the sofaltlinien 2, 3 and connected, for example by a Leksverklebung to the closed tube in an overlapping region.
- the Leksverklebung is not shown in the drawing.
- FIG. 1 illustrates that the cut off from an endless material hose at both ends with a cross-bottom 4, 5 is provided.
- the in FIG. 1 illustrated bottom cross-base 5 consists of two opposing Eckein advocatesn 6 and two opposing bottom flaps 7, which thus form the cross-shaped material of the cross-bottom 5.
- the bottom flaps 7 are shown hatched on their insides Bonding zones 8, 9 are provided, of which the adhesive zones 8, the connection with the corner weft 6 and the adhesive zone 9, the connection of the folding over each other after folding bottom flaps 7 together.
- a valve 10 Over one of the corner fences 6 is in FIG. 1 symbolically illustrated a valve 10, which may be formed in one of the numerous known embodiments.
- the valve 10 which may for example consist of a tubular folded insert sheet is inserted into the ground before folding the bottom flaps 7 and thus firmly connected to the ground.
- the valve 10 the filling of the bag by means of a (not shown) filler of a (not darg Robinsonen) filling machine.
- cross bottom 4 is inventively designed so that it can be done emptying the bag.
- the cross bottom 4 is also formed by corner lugs 11 and bottom flaps 12.
- the bottom flaps 12 of angled with the layers of the cylindrical jacket wall 1 by means of fold lines 13, 14.
- Corresponding fold lines 13, 14 continue in the area of the corner laps 11. Since the corner bumps 11 has been formed after the folding of the cylindrical jacket wall 1 to a flat hose along the sofaltlinien 2, 3, set the Sfaltlinien 2, 3 in the Eckein advocatesn 11 as central fold lines 2 ', 3' away.
- the triangular corner folds 11 extend in one-piece connection into the region of the bottom flaps 12, so that the bottom flaps 12 are double-walled by the sections of the corner folds 11 beyond the fold lines 13, 14.
- bottom flaps 12 are provided on their inside with adhesive surfaces 15, 16, by the folding of the bottom flaps 12 about the fold lines 13, 14, an adhesive bonding of the bottom flaps 12 with the central portions of the Eckeindite 11 on the one hand and between the overlapping Regions of the bottom flaps 12 on the other hand is produced.
- the bottom flap 12 After the bottom flap 12 has been folded around the fold line 14 and adhered to the weft 11, the bottom flap 12 is folded around the fold line 13. With the adhesive surfaces 15, 15 'is an adhesion of not yet covered by the other bottom flap 12 portion of the impact 11 and the overlapping region of the two bottom flaps 12 together. To complete the bonding of the two bottom flaps 12 with each other, the strip-shaped adhesive surface 16 which extends parallel to the fold lines 13, 14 serves.
- the two bottom flaps 12 have outside of the right Eckeinschlags 11 perpendicular to their free edges extending short cuts 17, which thus extend parallel to the free edge of the adjacent Eckeinschlags 11.
- the cuts 17 extend only in the overlapping region of the two folded bottom flaps 12.
- the bottom cover sheet 18 in this embodiment covers the complete bottom of the bag after it has been formed after filling into a substantially rectangular cross-section as shown in FIGS FIGS. 2 to 5 is shown.
- the bottom cover sheet 18 has on one of the short side a V-shaped adhesive surface 19, by which a bonding of the bottom cover sheet 18 takes place with a central region of the associated corner impact 11. However, this bond 19 keeps a clear distance to the adjacent bottom flap 12th
- the bottom cover sheet 18 is provided on its inside with adhesive surfaces 20 which extend as longitudinally extending strips to the adhesive surface 19 and as a transverse front-side connecting strip on the bottom cover sheet 18.
- the bottom cover sheet 18 is provided with an elongated tear strip 21 which is disposed approximately centrally in the bottom cover sheet and can extend over its full length.
- FIG. 2 shows that from the blank according to FIG. 1 formed sack, which has the cross bottom 4 on its upper side.
- the bottom cover sheet 18 has been removed by means of its tear strip 21 from the material of the corner impact 11 and the bottom flaps 12, so that the recess 17 of the upper bottom flap 12 is exposed.
- the tear strip 21 ensures that in the area occupied by him no (unwanted) bonding between ground cover sheet 18 and sack bottom takes place.
- FIG. 2 indicates that the ground cover sheet 18 is provided in the illustrated embodiment with a freely stamped support strip 22.
- FIG. 3 The next step of opening the bag for emptying is in FIG. 3 shown.
- a portion 12 'of the bottom flap 12 can bend around the fold line 13 upwards.
- the incision 17 of the lower bottom flap 12 is exposed.
- the bottom bottom flap is also torn open by means of the incision 17 to the fold line 14, whereby a portion 12 'of the bottom flap 12 can also be bent.
- the upwardly bent portions 12 'of the bottom flaps 12 are predominantly formed two layers, as they have a convolution with parts of the corner impact 11 are connected.
- the central region of the corner impact 11 can now be bent upwards around a folding line 23, as shown in FIG. 5 is shown.
- a dispensing channel 24 is formed which is bounded by three sections of material 25, 25', 25 "The sections of material 25, 25 'and 25" are at the top limited in the manufacture of the bag cut smooth edges, so that a defined discharge chute 24 is. Since the material portion 25 is provided with a portion of the fold line 3, the discharge chute 24 can be easily formed by a V-shaped fold on the fold line 3 a triangular discharge chute 24 in the form of a V. As a result, targeted pouring of the product filled into the bag can be ensured even with small amounts of dumping.
- a defined discharge chute 24 made of the material of the crossbeam 4 can be produced, which allows a defined pouring the product out of the bag without the risk of contamination. In particular, the handling of highly polluting or even toxic materials is greatly facilitated.
- the formation of the discharge chute 24 provided cross bottom 4 is located on the opposite end of the cylindrical casing wall 1, where the provided with a valve 10 cross-bottom 5 is formed.
- the inventive formation of the discharge chute 24 can just as well be done in the cross-bottom 5, which is provided with a valve 10 for filling the product in the bag.
- the arrangement of a bottom cover sheet 18 with a carrying handle 22 on the opposite end of the valve 10 of the bag has the advantage that when carrying the bag, the product weight is on the valve 10 and this, if necessary, closes.
- a corresponding emptying opening for forming a discharge chute 24 can also be provided in a cross-bottom 5 provided with a valve 10.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Entleeren eines Sacks, der wenigstens einen mit einem Bodendeckblatt abgedeckten Kreuzboden aufweist, der eine im Wesentlichen rechteckige Form aufweist und aus von schmalen Seiten über Faltlinien abgewinkelten Eckeinschlägen und von breiten Seitenwänden über Faltlinien abgewinkelten Bodenklappen verklebt ist.The invention relates to a method for emptying a bag, which has at least one cross bottom covered with a bottom cover sheet, which has a substantially rectangular shape and is glued from narrow sides folded over fold lines corner bumps and wide side walls folded over fold lines bottom flaps.
Die Erfindung betrifft ferner einen Sack, der durch wenigstens eine Materiallage gebildet ist, die einen geschlossenen, zu einem im Wesentlichen rechteckigen Querschnitt mit schmalen Seitenwänden und breiten Seitenwänden formbaren Schlauch ausgebildet ist, der an einem ersten Ende eine verschließbare Einfüllöffnung aufweist und an wenigstens einem seiner Enden zu einem Kreuzboden mit von den schmalen Seitenwänden abgewinkelten Eckeinschlägen und mit von den breiten Seitenwänden abgewinkelten Bodenklappen verklebt und mit einem den Kreuzboden überdeckenden Bodendeckblatt abgedeckt ist.The invention further relates to a bag, which is formed by at least one layer of material, which is a closed, malleable to a substantially rectangular cross-section with narrow side walls and wide side walls malleable hose having at a first end a closable filling opening and at least one of its Ends glued to a cross-bottom with angled from the narrow side walls corner fences and with the wide side walls angled bottom flaps and covered with a cross bottom covering ground cover sheet.
Die Bildung eines Sacks aus einem schlauchförmigen Material durch Faltung wenigstens eines Kreuzbodens ist ein übliches Verfahren. Dabei kann ein Kreuzboden auf beiden Enden des Sackschlauchs vorgesehen sein, wobei insbesondere in einen der Kreuzböden auch ein Ventil einsetzbar ist, sodass ein durch eine Sackfüllmaschine über einen Füllstutzen füllbarer Ventilsack gebildet wird. Es ist beispielsweise aber auch möglich, einen Sackboden nur auf einer Seite des Schlauchs auszubilden und den oben offenen Sack zu füllen und nach der Befüllung zu verschließen, beispielsweise durch Vernähen, Verkleben, Verschließen durch Kleb- oder Klettverschlussstreifen usw.The formation of a bag of a tubular material by folding at least one cross-bottom is a common method. In this case, a cross bottom can be provided on both ends of the bag tube, wherein in particular one of the cross bottoms, a valve is used, so that a fillable by a bag filling machine valve bag is formed. However, it is also possible, for example, to form a sack bottom only on one side of the hose and to fill the bag which is open at the top and close it after filling, for example by sewing, gluing, closing by adhesive or Velcro strips, etc.
Ein befüllter Sack soll möglichst dicht verschlossen sein, um auch bei staubenden Materialien ein Ausstauben von Material zu vermeiden. Wenn der befüllte Sack zu seinem Bestimmungsort transportiert worden ist, an dem das abgefüllte Produkt verwendet werden soll, wird der Sack aufgerissen, um das abgefüllte Material ausschütten oder anderweitig entnehmen zu können. Da der Sackboden aus zahlreichen Lagen besteht, die miteinander verklebt worden sind, bietet sich der Sackboden nicht für den Aufreißvorgang an. Das Aufreißen des Sacks unterhalb des Bodens erfolgt in dem schlauchförmigen Material der Mantelwandung des Sacks. Bei einem freien Aufreißen kommt es häufiger vor, dass der hergestellte Riss nicht in der gewünschten Weise quer zur Längsachse des Sacks verläuft, sondern schräg mit einer Komponente in axialer Richtung entsteht. Dabei kann es vorkommen, dass der Riss sich in die Höhe des im Sack abgefüllten Produkts fortsetzt, sodass bereits beim Aufreißen ein unerwünschtes Austreten von Produkt aus dem Sack auftritt und den Bereich, in dem der Sack aufgerissen wird, verunreinigt. Eine Abhilfe kann darin bestehen, dass der Sack mit einem scharfen Schneidinstrument in Form einer Schere oder eines Messers geöffnet wird. Nachteilig hieran ist die daraus resultierende benötigte Zeit für das Öffnen des Sacks und die Tatsache, dass für das Öffnen des Sacks immer ein extra bereitgestelltes und funktionsfähig gehaltenes Hilfsmittel erforderlich ist.A filled bag should be sealed as tightly as possible to avoid dusting of material even when dusty. When the filled bag has been transported to its destination where the bottled product is to be used, the bag is torn open to dump or otherwise remove the bottled material. Since the bag bottom consists of numerous layers that have been glued together, the bag bottom is not suitable for the tearing process. The tearing of the bag below the bottom takes place in the tubular material of the jacket wall of the bag. In a free tearing it is more common that the crack produced does not extend in the desired manner transverse to the longitudinal axis of the bag, but is formed obliquely with a component in the axial direction. It may happen that the crack continues into the height of the bagged product in the bag, so that even when tearing an undesirable leakage of product from the bag occurs and the area in which the bag is torn, contaminated. A remedy may be that the bag is opened with a sharp cutting instrument in the form of a pair of scissors or a knife. A disadvantage of this is the resulting time required for the opening of the bag and the fact that for the opening of the bag always an extra provided and functional held aids is required.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, die Entleerung eines Sacks ohne Hilfsmittel und ohne die Gefahr von kaum vermeidbaren Verunreinigungen zu ermöglichen.The present invention is therefore based on the object to enable the emptying of a bag without tools and without the risk of hardly avoidable contamination.
Diese Aufgabe wird erfindungsgemäß mit einem Verfahren der eingangs erwähnten Art dadurch gelöst, dass das Bodendeckblatt von einer schmalen Seitenwand ausgehend von dem betreffenden Eckeinschlag und von einem Teil der angrenzenden Bodenklappen abgezogen wird, dass die Bodenklappen jenseits des Eckeinschlags quer zu ihren freien Kanten bis zur angrenzenden breiten Seitenwand zur Abtrennung eines Teils der Bodenklappen eingerissen werden und dass die abgetrennten Teile der Bodenklappen zusammen mit dem Eckeinschlag durch Auffalten um die Faltlinien zu einer Ausschüttrinne gebogen werden, über die die Entleerung des Sackinhalts erfolgt.This object is achieved with a method of the type mentioned above in that the bottom cover sheet is deducted from a narrow side wall starting from the respective Eckeinschlag and a part of the adjacent bottom flaps, that the bottom flaps beyond the Eckeinschlags transverse to their free edges to the adjacent wide side wall for the separation of a portion of the bottom flaps are torn and that the separated parts of the bottom flaps together be bent with the corner impact by folding around the fold lines to a discharge chute, via which the emptying of the bag contents takes place.
Erfindungsgemäß ist somit vorgesehen, dass das Aufreißen des Sacks zum Zwecke seiner Entleerung im Bodenbereich erfolgt, indem das Bodendeckblatt zumindest teilweise von den sich überlappenden Bodenklappen abgezogen wird. Dieses Abziehen kann durch einen geeignete Verklebung des Bodendeckblatts und/oder das Versehen des Bodendeckblatts mit einer Abziehhilfe, beispielsweise in Form eines Aufreißstreifens, unterstützt werden. Wenn die Bodenklappen in ihrem sich gegenseitig überlappenden Bereich freigelegt sind, erfolgt das Einreißen der Bodenklappen senkrecht zur Längs- und Aufreißrichtung des Bodendeckblatts, und zwar bis zur angrenzenden breiten Seitenwand. Dadurch wird ein Teil der beiden Bodenklappen freigelegt und kann um die zur breiten Seitenwand hin bestehende Faltlinie hochgeklappt werden. Ggf. wird dabei eine bestehende Verklebung zwischen der Bodenklappe und dem zugehörigen Eckeinschlag gelöst. Dieser Öffnungsvorgang kann somit dadurch unterstützt werden, dass diese Verklebung nur auf einer kleinen Fläche ausgeführt wird. Mit dem Hochfalten der Bodenklappen kann auch der mit den Bodenklappen auf der Innenseite nicht verklebte Eckeinschlag hochgefaltet werden. Es entsteht somit eine durch drei Seiten (zwei Bodenklappen und Eckeinschlag) begrenzte zusammenhängende Ausschüttöffnung. Da der Eckeinschlag eine mittige Faltlinie aufweist, die sich aus dem Flachlegen des Sackschlauchs zum Transport vor der Befüllung ergibt, ist es ohne weiteres möglich, die noch vorhandene Faltlinie zu benutzen, um den Eckeinschlag V-förmig einzufalten und eine dreieckförmige Ausschüttrinne zu realisieren.According to the invention it is thus provided that the tearing of the bag for the purpose of its emptying in the bottom area is carried out by the bottom cover sheet is at least partially deducted from the overlapping bottom flaps. This peeling off can be assisted by a suitable gluing of the bottom cover sheet and / or by providing the bottom cover sheet with a peel-off aid, for example in the form of a tear-off strip. When the bottom flaps are exposed in their mutually overlapping region, the tearing of the bottom flaps is perpendicular to the longitudinal and tearing direction of the bottom cover sheet, to the adjacent wide side wall. As a result, a part of the two bottom flaps is exposed and can be folded up to the wide side wall out existing fold line. Possibly. In this case, an existing bond between the bottom flap and the associated corner impact is released. This opening process can thus be supported by the fact that this bonding is performed only on a small area. By folding up the bottom flaps, the corner flap not glued to the bottom flaps on the inside can also be folded up. It thus creates a by three sides (two bottom flaps and Eckeinschlag) limited coherent discharge opening. Since the corner impact has a central fold line, resulting from the laying flat of the bag tube for transport before filling, it is readily possible to use the still existing fold line to fold the corner V-shaped and to realize a triangular discharge chute.
Das erfindungsgemäße Verfahren erlaubt somit die Bildung einer Ausschüttöffnung im Bereich des Bodens, wobei der Aufreißvorgang beim Ablösen des Bodendeckblatts und beim Einreißen der Bodenklappen im Bodenbereich erfolgt und daher für das in dem Sack abgefüllte Produkt unkritisch ist. Etwaige schräg verlaufende Einrisse verbleiben in dem Bodenbereich und führen nicht dazu, dass in ungewollter Weise abgefülltes Produkt aus dem Sack austritt.The inventive method thus allows the formation of a discharge opening in the region of the bottom, wherein the tearing process occurs during detachment of the bottom cover sheet and tearing of the bottom flaps in the bottom region and therefore is uncritical for the bottled in the bag product. Any oblique tears remain in the bottom area and do not cause unintentionally bottled product leaking from the bag.
Die erfindungsgemäß ausgebildete Ausschüttrinne erlaubt ein sicheres Ausschütten des Produkts aus dem Sack, wobei die Begrenzung der Ausschüttrinne nicht durch eingerissene Sackwandungen, sondern unter Ausnutzung der bei der Produktion des Sackes hergestellten Schnittkanten erfolgt.The inventively designed discharge chute allows a safe dumping of the product from the bag, the limitation of the discharge chute is not made by torn bag walls, but taking advantage of the cut edges produced in the production of the bag.
Zur Erleichterung des Einreißens der Bodenklappen können diese mit Aufreißhilfen versehen sein, Geeignet sind insbesondere kurze Einschnitte, die über den Überlappungsbereich der beiden Bodenklappen nicht hinausgehen und einen definierten Anfang der sich bis zu der benachbarten breiten Seitenwand erstreckenden Reißlinie in der Bodenklappe gewährleisten und die Richtungsstreuung für die Reißlinie erheblich begrenzen.To facilitate the tearing of the bottom flaps these can be provided with Aufreißhilfen, Particularly suitable are short incisions that do not go beyond the overlap region of the two bottom flaps and ensure a defined beginning of extending to the adjacent wide side wall tear line in the bottom flap and the directional scattering for significantly limit the tear line.
Zur Lösung der oben erwähnten Aufgabe ist ferner ein Sack der eingangs erwähnten Art erfindungsgemäß dadurch gekennzeichnet, dass das Bodendeckblatt von einer schmalen Seitenwand ausgehend wenigstens über einen Teilbereich von dem Kreuzboden über den betreffenden Eckeinschlag hinaus abziehbar ausgebildet ist, dass wenigstens eine der Bodenklappen in einem nicht mehr auf dem Eckeinschlag liegenden Bereich wenigstens eine Aufreißhilfe zum Abtrennen eines Teils der Bodenklappen aufweist, sodass die abgetrennten Teile der Bodenklappen zusammen mit dem nach außen gezogenen Eckeinschlag eine Ausschüttrinne bilden.To solve the above-mentioned problem, a bag of the type mentioned above is further characterized in that the bottom cover sheet is peeled off from a narrow side wall starting at least over a portion of the cross bottom on the respective Eckeinschlag that at least one of the bottom flaps in a not more lying on the corner hitting area at least one tear-open to separate a portion of the bottom flaps so that the separated parts of the bottom flaps together with the drawn outward corner hump form a discharge chute.
Die Abziehbarkeit des Bodendeckblatts kann durch eine geeignete Verklebung des Bodendeckblatts mit dem Boden unterstützt werden. Insbesondere kann eine Verklebung zwischen Bodendeckblatt und Eckeinschlag vorgesehen sein, die sich nicht in den Bereich der Bodenklappen fortsetzt.The peelability of the ground cover sheet can be assisted by suitable bonding of the ground cover sheet to the ground. In particular, a bond between the ground cover sheet and the corner impact may be provided, which does not continue in the region of the bottom flaps.
Die Abziehbarkeit des Bodendeckblattes kann ferner durch einen Aufreißstreifen im Bodendeckblatt unterstützt sein.The peelability of the bottom cover sheet may be further assisted by a tear strip in the bottom cover sheet.
In einer bevorzugten Ausführungsform ist der Einschnitt der Bodenklappe, der als Aufreißhilfe vorgesehen ist, auf weniger als die Hälfte der Länge der Bodenklappen begrenzt. Insbesondere ist es zweckmäßig, dass sich der Einschnitt nur über den Bereich erstreckt, in dem die beiden Bodenklappen einander überlappen, sodass durch den Einschnitt keine Beeinträchtigung der Dichtheit des Kreuzbodens für den Transport des Produkts von der Abfüllstation zum Einsatzort entsteht.In a preferred embodiment, the recess of the bottom flap, which is provided as a tear-open, is limited to less than half the length of the bottom flaps. In particular, it is expedient that the incision extends only over the area in which the two bottom flaps overlap each other, so that the incision causes no impairment of the tightness of the cross base for the transport of the product from the filling station to the place of use.
Die vorliegende Erfindung ist insbesondere für Säcke geeignet, die aus leicht reißbaren Materialien bestehen, wie beispielsweise Säcke aus Kraftpapieren. Dabei können die Säcke auch mehrlagig ausgebildet sein. Die vorliegende Erfindung lässt sich aber auch an geeigneten Kunststoffsäcken realisieren, insbesondere wenn sich die Aufreißhilfe ggf. über die gesamte Länge der Reißlinien erstrecken. Als Aufreißhilfen kommen neben den erwähnten Aufreißstreifen auch Perforationslinien, insbesondere Schlitzperforationen, in Betracht.The present invention is particularly suitable for sacks made of easily rupturable materials, such as kraft paper sacks. In this case, the sacks can also be designed in multiple layers. However, the present invention can also be implemented on suitable plastic bags, in particular if the tear-open aid possibly extends over the entire length of the tear lines. In addition to the tear strips mentioned, perforation lines, in particular slot perforations, come into consideration as tear-open aids.
Die Erfindung soll im Folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigen:
Figur 1- einen flach liegenden Sackschlauch mit Eckeinschlägen und vorgerillten Bodenfaltlinien sowie einem Bodendeckblatt;
Figur 2- eine perspektivische Darstellung eines geschlossenen Bodens mit einem teilweise abgezogenen Bodendeckblatt;
Figur 3- die perspektivische Darstellung gemäß
mit einer ersten eingerissenen Bodenklappe;Figur 2 Figur 4- die Darstellung gemäß
mit einer durch Einreißen freigelegten zweiten Bodenklappe;Figur 3 - Figur 5
- eine perspektivische Darstellung gemäß
, bei der auch der Eckeinschlag zur Ausbildung einer Ausschüttrinne hochgebogen ist.Figur 4
- FIG. 1
- a flat-lying bag hose with Eckeinschlägen and Vorgerillten Bodenfaltlinien and a bottom cover sheet;
- FIG. 2
- a perspective view of a closed bottom with a partially peeled ground cover sheet;
- FIG. 3
- the perspective view according to
FIG. 2 with a first cracked bottom flap; - FIG. 4
- the representation according to
FIG. 3 with a second bottom flap exposed by tearing; - FIG. 5
- a perspective view according to
FIG. 4 , in which the corner impact is bent up to form a discharge chute.
Der am anderen Ende der Mantelwandung 1 ausgebildete Kreuzboden 4 ist erfindungsgemäß so ausgebildet, dass über ihn eine Entleerung des Sacks erfolgen kann. Der Kreuzboden 4 ist ebenfalls durch Eckeinschläge 11 und Bodenklappen 12 gebildet. Die Bodenklappen 12 von mit den Lagen der zylindrischen Mantelwandung 1 mittels Faltlinien 13, 14 abgewinkelt. Entsprechende Faltlinien 13, 14 setzen sich in den Bereich der Eckeinschläge 11 fort. Da die Eckeinschläge 11 nach der Faltung der zylindrischen Mantelwandung 1 zu einem flachliegenden Schlauch entlang den Seitenfaltlinien 2, 3 gebildet worden ist, setzen sich die Seitenfaltlinien 2, 3 in den Eckeinschlägen 11 als mittige Faltlinien 2', 3' fort. Die dreieckförmig ausgebildeten Eckeinschläge 11 erstrecken sich in einstückiger Verbindung in den Bereich der Bodenklappen 12 hinein, sodass die Bodenklappen 12 durch die Abschnitte der Eckeinschläge 11 jenseits der Faltlinien 13, 14 doppelwandig ausgebildet sind.Trained at the other end of the
Es ist erkennbar, dass die Bodenklappen 12 auf ihrer Innenseite mit Klebflächen 15, 16 versehen sind, durch die beim Einfalten der Bodenklappen 12 um die Faltlinien 13, 14 eine Klebverbindung der Bodenklappen 12 mit den mittigen Abschnitten der Eckeinschläge 11 einerseits und zwischen den einander überlappenden Bereichen der Bodenklappen 12 andererseits hergestellt wird.It can be seen that the bottom flaps 12 are provided on their inside with adhesive surfaces 15, 16, by the folding of the bottom flaps 12 about the fold lines 13, 14, an adhesive bonding of the bottom flaps 12 with the central portions of the
Zunächst wird die um die Faltlinie 14 klappbare Bodenklappe 12 (in
Nachdem die Bodenklappe 12 um die Faltlinie 14 gefaltet und auf den Einschlag 11 geklebt worden ist, wird die Bodenklappe 12 um die Faltlinie 13 gefaltet. Mit den Klebflächen 15, 15' erfolgt eine Verklebung des noch nicht durch die andere Bodenklappe 12 abgedeckten Bereichs des Einschlags 11 und des überlappenden Bereichs der beiden Bodenklappen 12 miteinander. Zur Vervollständigung der Verklebung der beiden Bodenklappen 12 miteinander dient die streifenförmige Klebfläche 16, die parallel zu den Faltlinien 13, 14 verläuft.After the
Die beiden Bodenklappen 12 weisen außerhalb des rechten Eckeinschlags 11 senkrecht zu ihren freien Kanten verlaufende kurze Einschnitte 17 auf, die somit parallel zur freien Kante des benachbarten Eckeinschlags 11 verlaufen. Die Einschnitte 17 erstrecken sich ausschließlich in dem überlappenden Bereich der beiden umgefalteten Bodenklappen 12.The two
Eine der beiden Bodenklappen 12 ist mit einem rechteckigen Bodendeckblatt 18 beklebt. Das Bodendeckblatt 18 bedeckt in dieser Ausführungsform den vollständigen Boden des Sacks, nachdem dieser nach der Befüllung zu einem im Wesentlichen rechteckigen Querschnitt geformt worden ist, wie er in den
Das Bodendeckblatt 18 weist an einer der kurzen Seite eine V-förmige Klebfläche 19 auf, durch die eine Verklebung des Bodendeckblatts 18 mit einem mittigen Bereich des zugehörigen Eckeinschlags 11 erfolgt. Diese Verklebung 19 hält jedoch einen deutlichen Abstand zu der benachbarten Bodenklappe 12.The
Im Übrigen ist das Bodendeckblatt 18 auf seiner Innenseite mit Klebflächen 20 versehen, die sich als längs erstreckte Streifen bis vor die Klebfläche 19 und als ein quer verlaufender stirnseitiger Verbindungsstreifen auf dem Bodendeckblatt 18 erstrecken.Incidentally, the
Ferner ist das Bodendeckblatt 18 mit einem längs erstreckten Aufreißstreifen 21 versehen, der etwa mittig in dem Bodendeckblatt angeordnet ist und sich über seine volle Länge erstrecken kann.Further, the
Das Bodendeckblatt 18 ist mittels seines Aufreißstreifens 21 von dem Material des Eckeinschlags 11 und der Bodenklappen 12 abgezogen worden, sodass der Einschnitt 17 der oberen Bodenklappe 12 frei liegt. Der Aufreißstreifen 21 stellt sicher, dass in dem von ihm eingenommenen Bereich keine (ungewollte) Verklebung zwischen Bodendeckblatt 18 und Sackboden erfolgt.The
Der nächste Schritt der Öffnung des Sacks zum Zwecke der Entleerung ist in
Im nächsten Schritt, der in
Die nach oben gebogenen Teile 12' der Bodenklappen 12 sind überwiegend zweilagig ausgebildet, da sie über eine Faltung mit Teilen des Eckeinschlags 11 verbunden sind.The upwardly bent portions 12 'of the bottom flaps 12 are predominantly formed two layers, as they have a convolution with parts of the
Der mittlere Bereich des Eckeinschlags 11 lässt sich nunmehr um eine Faltlinie 23 nach oben biegen, wie dies in
Erfindungsgemäß ist somit eine definierte Ausschüttrinne 24 aus dem Material des Kreuzbodens 4 herstellbar, die ein definiertes Ausschütten des Produkts aus dem Sack ohne die Gefahr einer Verschmutzung ermöglicht. Insbesondere die Handhabung von stark verschmutzenden oder gar toxischen Materialien wird dadurch erheblich erleichtert.According to the invention thus a defined
In dem dargestellten Ausführungsbeispiel befindet sich der die Ausbildung der Ausschüttrinne 24 vorgesehene Kreuzboden 4 auf dem gegenüberliegenden Ende der zylindrischen Mantelwandung 1, wo der mit einem Ventil 10 versehene Kreuzboden 5 ausgebildet ist. Die erfindungsgemäße Bildung der Ausschüttrinne 24 kann natürlich genauso gut in dem Kreuzboden 5 erfolgen, der mit einem Ventil 10 zum Einfüllen des Produkts in den Sack versehen ist. Die Anordnung eines Bodendeckblatts 18 mit einem Traggriff 22 auf dem dem Ventil 10 gegenüberliegenden Ende des Sacks hat allerdings den Vorteil, dass beim Tragen des Sacks das Produktgewicht auf dem Ventil 10 liegt und dieses, ggf. zusätzlich, verschließt. Dennoch kann auch in einem mit einem Ventil 10 versehenen Kreuzboden 5 eine entsprechende Entleerungsöffnung zur Bildung einer Ausschüttrinne 24 vorgesehen werden.In the illustrated embodiment, the formation of the
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09007748T PL2138406T3 (en) | 2008-06-23 | 2009-06-12 | Sack and device for emptying a sack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008029507A DE102008029507B4 (en) | 2008-06-23 | 2008-06-23 | Sack and method for emptying a bag |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2138406A1 true EP2138406A1 (en) | 2009-12-30 |
EP2138406B1 EP2138406B1 (en) | 2011-03-16 |
Family
ID=41091783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09007748A Active EP2138406B1 (en) | 2008-06-23 | 2009-06-12 | Sack and device for emptying a sack |
Country Status (8)
Country | Link |
---|---|
US (1) | US8152375B2 (en) |
EP (1) | EP2138406B1 (en) |
AT (1) | ATE501939T1 (en) |
DE (2) | DE102008029507B4 (en) |
ES (1) | ES2361037T3 (en) |
MX (1) | MX2009006592A (en) |
PL (1) | PL2138406T3 (en) |
RU (1) | RU2492126C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2468650A1 (en) * | 2010-12-23 | 2012-06-27 | Mondi AG | Bag provided with an opening line and a handle |
EP2588382A2 (en) * | 2010-02-24 | 2013-05-08 | Wilhelm Kullberg | Closure on a rectangular container |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR102016014915B1 (en) * | 2016-06-23 | 2019-06-11 | Starlinger & Co Gesellschaft Mbh | PACKAGING TYPE BAG OR CATERPILLAR |
RU2648797C2 (en) * | 2016-08-05 | 2018-03-28 | Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" | Method and device for storing and recovering a particulate product |
RS61076B1 (en) * | 2017-12-14 | 2020-12-31 | Starlinger & Co Gmbh | Bag for loose material |
CN111634511A (en) * | 2020-05-20 | 2020-09-08 | 杭州市余杭区妇幼保健院 | Portable bag opener |
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JPS61153731U (en) * | 1985-03-15 | 1986-09-24 | ||
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EP1033311A2 (en) | 1999-03-02 | 2000-09-06 | F + B Verpackungen GmbH | Paper or plastic bag with tearing tab |
US7285082B1 (en) | 2000-03-08 | 2007-10-23 | Crystal B.V. | Airtight box with manufacturing method and apparatus |
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US2203924A (en) * | 1936-06-30 | 1940-06-11 | Papiersackfabrik Rothrist A G | Closure for paper bags |
US2583856A (en) * | 1948-04-06 | 1952-01-29 | Charles G Klein | Lined dispensing carton |
US3081930A (en) * | 1957-10-17 | 1963-03-19 | Paper Sacks Ltd | Bag opening device |
US2998911A (en) * | 1958-12-01 | 1961-09-05 | Union Bag Camp Paper Corp | Bag opening device |
DE1935816A1 (en) * | 1968-07-18 | 1970-01-22 | Natro Cellulosa S P A | Valve sack or pouch made of one or more layers or sheets of paper, plastic or synthetic material or another equivalent material |
US3648922A (en) * | 1970-02-05 | 1972-03-14 | Great Plains Bag Co | Bag |
DE3941300A1 (en) * | 1989-12-14 | 1991-06-20 | Nordenia Verpackung | Sack made of folded plastics - has surface giving different degrees of adherence to covering sheet at end |
DE4010822A1 (en) * | 1990-04-04 | 1991-10-10 | Wilhelmstal Werke Gmbh | Bag or sack made of paper - has tear=off strip in floor for easy opening |
DE29715972U1 (en) * | 1997-09-05 | 1999-01-14 | Bischof Und Klein Gmbh & Co, 49525 Lengerich | Packaging for pourable contents |
-
2008
- 2008-06-23 DE DE102008029507A patent/DE102008029507B4/en not_active Expired - Fee Related
-
2009
- 2009-06-12 ES ES09007748T patent/ES2361037T3/en active Active
- 2009-06-12 PL PL09007748T patent/PL2138406T3/en unknown
- 2009-06-12 AT AT09007748T patent/ATE501939T1/en active
- 2009-06-12 DE DE502009000449T patent/DE502009000449D1/en active Active
- 2009-06-12 EP EP09007748A patent/EP2138406B1/en active Active
- 2009-06-18 MX MX2009006592A patent/MX2009006592A/en active IP Right Grant
- 2009-06-22 US US12/488,848 patent/US8152375B2/en not_active Expired - Fee Related
- 2009-06-22 RU RU2009123802/12A patent/RU2492126C2/en active
Patent Citations (5)
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JPS61153731A (en) | 1984-12-27 | 1986-07-12 | Fujitsu Ltd | Data delaying device |
JPS61153731U (en) * | 1985-03-15 | 1986-09-24 | ||
US5823685A (en) | 1996-09-19 | 1998-10-20 | Ardex Inc. | Peel-away closure for a bag |
EP1033311A2 (en) | 1999-03-02 | 2000-09-06 | F + B Verpackungen GmbH | Paper or plastic bag with tearing tab |
US7285082B1 (en) | 2000-03-08 | 2007-10-23 | Crystal B.V. | Airtight box with manufacturing method and apparatus |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2588382A2 (en) * | 2010-02-24 | 2013-05-08 | Wilhelm Kullberg | Closure on a rectangular container |
EP2588382A4 (en) * | 2010-02-24 | 2015-01-21 | Wilhelm Kullberg | Closure on a rectangular container |
RU2622781C2 (en) * | 2010-02-24 | 2017-06-20 | Вильхельм КУЛЛБЕРГ | Closure on a rectangular container |
EP2468650A1 (en) * | 2010-12-23 | 2012-06-27 | Mondi AG | Bag provided with an opening line and a handle |
Also Published As
Publication number | Publication date |
---|---|
RU2492126C2 (en) | 2013-09-10 |
DE102008029507A1 (en) | 2010-01-14 |
EP2138406B1 (en) | 2011-03-16 |
PL2138406T3 (en) | 2011-08-31 |
DE502009000449D1 (en) | 2011-04-28 |
MX2009006592A (en) | 2010-01-15 |
US20090324144A1 (en) | 2009-12-31 |
ES2361037T3 (en) | 2011-06-13 |
US8152375B2 (en) | 2012-04-10 |
ATE501939T1 (en) | 2011-04-15 |
DE102008029507B4 (en) | 2013-01-10 |
RU2009123802A (en) | 2010-12-27 |
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