EP3057874B1 - Bag opening device - Google Patents

Bag opening device Download PDF

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Publication number
EP3057874B1
EP3057874B1 EP15757469.0A EP15757469A EP3057874B1 EP 3057874 B1 EP3057874 B1 EP 3057874B1 EP 15757469 A EP15757469 A EP 15757469A EP 3057874 B1 EP3057874 B1 EP 3057874B1
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EP
European Patent Office
Prior art keywords
bag
opening device
bag opening
bridge
points
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EP15757469.0A
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German (de)
French (fr)
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EP3057874A1 (en
Inventor
Norbert Arnold
Adalbert HOFGAERTNER
Wolfgang Reiter
Tobias TODT
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Uzin-Werk Georg Utz GmbH and Co KG
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Uzin-Werk Georg Utz GmbH and Co KG
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Publication of EP3057874A1 publication Critical patent/EP3057874A1/en
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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
    • 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
    • B65B69/0075—Emptying systems for flexible intermediate bulk containers [FIBC]

Definitions

  • the present invention relates to a bag opening device for opening a bag containing a bagged material.
  • US-A-2 576 492 describes a rectilinear bag opening device equipped with several serrations. When opening the bag, the bag is simultaneously on several jagged cutting devices. The weight of the bag is thereby distributed over several cutting devices and the surface pressure per cutter is reduced.
  • the object of the present invention is to provide a bag opening device for opening a bagged product To provide Sackes, which eliminates the disadvantages mentioned above and ensures an improved emptying process of the bag.
  • a bag opening device for opening a bag containing a bagged material, which has a fastening device for fastening the bag opening device to an associated bagged goods receptacle and a toothed bridge connected to the fastening device, which points in the direction of the top side is arcuate and has at the top one or more teeth for opening the bag.
  • the present invention has the advantage that the teeth of the serrated bridge, for example, in the middle of the broad side of the bag can produce a defined transverse slot. Due to the arcuate configuration of the bag opening device, the bag is initially on the corresponding teeth of the serrated bridge above the support edge of the bagged goods receptacle such that advantageously a larger surface pressure and a space between the edge of the bagged goods receptacle and the bag for easier handling of the bag during the emptying process are created.
  • the serrated bridge has a plurality of, for example four, serrations arranged one behind the other in the longitudinal direction.
  • an enlarged and defined opening slot is created for an improved evacuation process in the bag to be emptied.
  • the number and design of the individual prongs may vary depending on the particular bag material, the bag size and / or the desired opening slot selected and configured accordingly.
  • the teeth arranged in the longitudinal direction on the serrated bridge are preferably arranged somewhat higher on the serrated bridge than the adjacent outer serrations. Characterized an increased surface pressure on the bag material is created by the weight of the bag together with its bagged by the central points such that a quick and easy piercing of the bag material is ensured by the central points. In a further lowering of the bag finally hit the other points through the bag material, possibly by a slight lateral movement of the bag.
  • the prongs each at both inclined side edges, i. arranged on two sides, cutting edges, which are formed by the same direction oriented chamfers or in the opposite direction oriented chamfers.
  • two-sided cutting edges provided an enlarged section in the longitudinal direction of the bag opening device is ensured.
  • Alternating chamfers of the adjacent cutting edges may under certain circumstances improve the cutting process for severing the sack material.
  • the cutting bevels are provided on one side of the teeth in the longitudinal direction seen on the teeth. Any arrangement of the chamfers is quite conceivable.
  • the bag-opening device has a height adapted to the thickness of the bag to be opened or the jaw bridge a bridge height and / or tooth height adapted to the thickness of the bag to be opened such that the prongs opening the bag do not open the bag to be opened punctured. Consequently, the configuration of the sack opening device or the sheet design of the serrated bridge is adapted to the respectively openable bag such that to reduce a risk of injury of User's teeth do not break the bag to be opened on the back.
  • the fastening device has two opposite fastening sections, wherein a fastening section is provided at each free end of the toothed bridge.
  • each attachment portion has one or more engagement portions for a stable engagement with the edge of the associated bagged goods receptacle.
  • each attachment portion has two or three engagement portions, which are stably engageable with different edge regions of the associated sack receiving container with this.
  • the bag-opening device is formed from a sheet metal material having a predetermined sheet thickness, for example with a sheet thickness of approximately 3 mm. This facilitates the manufacturing process and reduces the manufacturing cost.
  • the bag-opening device is designed mirror-symmetrically with respect to a longitudinal center plane and / or with respect to a transverse center plane. This may also contribute to a reduction in manufacturing costs due to a simplified mold.
  • FIG. 1 shows a perspective view of a bag opening device for opening a sack-containing sack according to a preferred embodiment of the present invention.
  • the bag opening device 1 preferably has two opposite attachment portions 10, 20.
  • Each attachment portion 10, 20 has according to the present embodiment, three engagement portions 11, 12, 13 and 21, 22, 23 respectively. It can also be provided only two or more than three engagement sections, without departing from the present inventive concept.
  • each mounting portion 10, 20 is approximately T-shaped, wherein the two lateral webs 11, 13 and 21, 23 are slightly curved in such a way that they are associated with the associated edge of the bagged goods receptacle stable engageable.
  • each attachment portion 10, 20 has a central web 12 and 22, which is also engageable with the edge of the bagged goods receptacle. Consequently, the three provided engagement sections 11, 12, 13 of the attachment section 10 or the engagement sections 21, 22, 23 of the attachment section 20 are adapted to the edge curvature of the bagged goods receptacle such that a stable, for example non-positive and / or positive fit, Engagement is ensured with the edge of the bagged goods receptacle.
  • the attachment portions 10, 20 are each formed, for example, slightly concave curved seen from the outside, to be adapted to the curvature of the edge of the bagged goods receptacle.
  • the individual engagement sections 11, 12, 13 or 21, 22, 23 are preferably designed and aligned such that jamming of the respective fastening sections 10, 20 in the associated edge region the bagged goods receptacle is ensured in a simple manner.
  • each engaging portion 11, 12, 13 and 21, 22, 23 is preferably formed as an engagement hook, as in FIG. 1 is shown to ensure easy hooking the engagement portions to the edge of the bagged goods receptacle.
  • the two fastening sections 10, 20 are connected to each other via a serrated bridge 30 according to the present exemplary embodiment.
  • the serrated bridge 30 has a plurality of, for example, four tines 31, 32, 33, 34, which are preferably provided one behind the other in the longitudinal direction of the sack opening device 1.
  • the serrated bridge 30 is preferably configured as a bridge that is curved in the direction of the upper side. Furthermore, four prongs 31, 32, 33, 34 are preferably arranged on the upper side of the serrated bridge 30, the two central prongs 32, 33 having a height oriented somewhat further upwards than the two adjacent lateral prongs 31, 34 in that the bag experiences an increased surface pressure by the two central prongs 32, 33 during initial placement on the serrated bridge 30, and the bag material can be pierced more easily.
  • each prong preferably has two cutting edges on the laterally inclined teeth edges.
  • the two cutting edges of the tine 32 with the reference numerals 35, 36 provided. Consequently, each point according to the present embodiment has on both sides, ie two-sided cutting edges in the form of corresponding chamfers.
  • all chamfers of all prongs can be oriented in the longitudinal direction to the same side.
  • the orientation of the individual chamfers of the cutting edges of the individual prongs is provided alternately or according to a predetermined arrangement pattern.
  • each serrated edge viewed in the longitudinal direction, have a correspondingly provided chamfer on both sides.
  • cutting edges in any imaginable form can be provided at the serrations either equal, reciprocal or in any other configuration.
  • the height of the sack opening device 1 or the entire jaw bridge 30 is preferably designed such that the supreme serrations 32, 33 do not pierce the sack at the back of the sack on the edge of the sack goods receptacle in order to minimize the risk of injury to the user. It is obvious to a person skilled in the art that the bag opening device 1 can also be designed for various bagged goods receptacles as well as for different bag sizing.
  • the bag opening device 1 is formed of a predetermined sheet material having a predetermined sheet thickness.
  • a sheet thickness of about 3 mm is selected. It is also conceivable that the bag opening device 1 is assembled from several individual parts, for example three individual parts, in order to simplify the manufacturing process and to reduce the costs.
  • the bag opening device 1 can also be mirror-symmetrical or axially symmetrical, for example with respect to a transverse center plane, as in FIG. 1 is shown as an example. However, other types of symmetry are conceivable and encompassed by the present scope of protection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Bag Frames (AREA)

Description

Die vorliegende Erfindung bezieht sich auf eine Sacköffnungsvorrichtung zum Öffnen eines ein Sackgut beinhaltenden Sackes.The present invention relates to a bag opening device for opening a bag containing a bagged material.

Obwohl auf beliebige Säcke anwendbar, werden die vorliegende Erfindung sowie die ihr zugrunde liegende Problematik in Bezug auf Säcke näher erläutert, welche feinkörnige oder pulverförmige Materialien zur Verwendung zum Herstellen von Fußbodenuntergründen und Fußbodenkonstruktionen beinhalten.Although applicable to any sacks, the present invention, as well as the problems underlying it, will be discussed in more detail with respect to sacks which include fine-grained or powdered materials for use in producing floor and floor structures.

Es ist bisher der Anmelderin bekannt, die das Sackgut beinhaltenden Säcke an der oberen Stirnseite mittels eines Messers oder einer Schere in Querrichtung aufzuschneiden und durch Umdrehen des Sackes das Sackgut in einen Eimer oder dergleichen auszuleeren. Hieran hat sich allerdings die Tatsache als nachteilig herausgestellt, dass ein erheblicher Kraftaufwand zum Umdrehen des Sackes notwendig ist und dass ein Teil des Sackgutes beim Umdrehen des Sackes nicht in den Eimer selbst, sondern neben den Eimer geleert wird.It has hitherto been known to the Applicant to cut open the bags containing the bagged material at the upper end side by means of a knife or scissors in the transverse direction and to empty the bagged goods into a bucket or the like by turning the bag over. This, however, has proven to be disadvantageous in that a considerable effort to turn the bag is necessary and that a part of the bagged material when turning the bag is not emptied into the bucket itself, but next to the bucket.

Des Weiteren ist der Anmelderin bekannt, dass auf einem entsprechenden Aufnahmebehälter zur Aufnahme des Sackgutes ein einzelner Dorn zum Vorsehen eines Loches in der unteren Stirnseite des Sackes vorgesehen ist. Hier hat sich allerdings die Tatsache als nachteilig herausgestellt, dass der Sack seitlich bewegt werden muss, um einen Längsschlitz erzeugen zu können. Ferner erfolgt lediglich ein unbefriedigende Austrittsöffnung und eine unbefriedigende Ausschüttung des Sackgutes durch diese erzeugte Austrittsöffnung im Sack.Furthermore, the applicant is aware that on a corresponding receptacle for receiving the bagged a single mandrel is provided for providing a hole in the lower end face of the bag. Here, however, the fact has proved to be disadvantageous that the bag must be moved laterally to produce a longitudinal slot can. Furthermore, there is only an unsatisfactory outlet opening and an unsatisfactory discharge of the bagged material through this generated outlet opening in the bag.

US-A-2 576 492 beschreibt eine mit mehrere Zacken ausgerüstete gradlinige Sacköffnungsvorrichtung. Beim Öffnen des Sackes liegt der Sack gleichzeitig auf mehrere zackenförmige Schneidvorrichtungen. Das Gewicht des Sackes wird dadurch auf mehrere Schneidvorrichtungen verteilt und der Flächendruck pro Schneidvorrichtung wird verringert. US-A-2 576 492 describes a rectilinear bag opening device equipped with several serrations. When opening the bag, the bag is simultaneously on several jagged cutting devices. The weight of the bag is thereby distributed over several cutting devices and the surface pressure per cutter is reduced.

Somit liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Sacköffnungsvorrichtung zum Öffnen eines ein Sackgut beinhaltenden Sackes zu liefern, welche die oben angegebenen Nachteile beseitigt und einen verbesserten Entleerungsvorgang des Sackes gewährleistet.Thus, the object of the present invention is to provide a bag opening device for opening a bagged product To provide Sackes, which eliminates the disadvantages mentioned above and ensures an improved emptying process of the bag.

Diese Aufgabe wird erfindungsgemäß durch die Sacköffnungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by the sack opening device with the features of claim 1.

Die der vorliegenden Erfindung zugrunde liegende Idee besteht darin, dass eine Sacköffnungsvorrichtung zum Öffnen eines ein Sackgut beinhaltenden Sackes vorgesehen ist, welche eine Befestigungsvorrichtung zum Befestigen der Sacköffnungsvorrichtung an einem zugeordneten Sackgut-Aufnahmebehälter und eine mit der Befestigungseinrichtung verbundene Zackenbrücke aufweist, welche in Richtung der Oberseite hin bogenförmig ausgebildet ist und an der Oberseite einen oder mehrere Zacken zum Öffnen des Sackes aufweist.The idea underlying the present invention is that a bag opening device is provided for opening a bag containing a bagged material, which has a fastening device for fastening the bag opening device to an associated bagged goods receptacle and a toothed bridge connected to the fastening device, which points in the direction of the top side is arcuate and has at the top one or more teeth for opening the bag.

Somit weist die vorliegende Erfindung den Vorteil auf, dass die Zacken der Zackenbrücke beispielsweise mittig in der breiten Seite des Sackes einen definierten Querschlitz erzeugen können. Aufgrund der bogenförmigen Ausgestaltung der Sacköffnungsvorrichtung liegt der Sack zunächst auf den entsprechenden Zacken der Zackenbrücke oberhalb des Auflagerandes des Sackgut-Aufnahmebehälters derart auf, dass vorteilhaft ein größerer Flächendruck und ein Zwischenraum zwischen dem Rand des Sackgut-Aufnahmebehälters und dem Sack zur leichteren Handhabe des Sackes während des Entleerungsvorgangs geschaffen werden.Thus, the present invention has the advantage that the teeth of the serrated bridge, for example, in the middle of the broad side of the bag can produce a defined transverse slot. Due to the arcuate configuration of the bag opening device, the bag is initially on the corresponding teeth of the serrated bridge above the support edge of the bagged goods receptacle such that advantageously a larger surface pressure and a space between the edge of the bagged goods receptacle and the bag for easier handling of the bag during the emptying process are created.

In den Unteransprüchen finden sich vorteilhafte Ausgestaltungen und Verbesserungen der im Anspruch 1 angegebenen Sacköffnungsvorrichtung.In the dependent claims are advantageous embodiments and improvements of claim 1 in the bag opening device.

Gemäß einem Ausführungsbeispiel weist die Zackenbrücke mehrere, beispielsweise vier, in Längsrichtung hintereinander angeordnete Zacken auf. Dadurch wird ein vergrößerter und definierter Öffnungsschlitz für einen verbesserten Entleerungsvorgang in dem zu entleerenden Sack geschaffen. Die Anzahl und die Ausgestaltung der einzelnen Zacken kann in Abhängigkeit des jeweiligen Sackmaterials, der Sackgröße und/oder des gewünschten Öffnungsschlitzes gewählt und entsprechend ausgestaltet werden.According to one exemplary embodiment, the serrated bridge has a plurality of, for example four, serrations arranged one behind the other in the longitudinal direction. As a result, an enlarged and defined opening slot is created for an improved evacuation process in the bag to be emptied. The number and design of the individual prongs may vary depending on the particular bag material, the bag size and / or the desired opening slot selected and configured accordingly.

Gemäß einer weiteren Weiterbildung sind die in Längsrichtung mittig angeordneten Zacken auf der Zackenbrücke vorzugsweise etwas höher auf der Zackenbrücke angeordnet als die benachbarten äußeren Zacken. Dadurch wird durch das Eigengewicht des Sackes mitsamt seinem Sackgut durch die mittigen Zacken ein vergrößerter Flächendruck auf das Sackmaterial derart geschaffen, dass ein leichtes und schnelles Durchstoßen des Sackmaterials durch die mittigen Zacken gewährleistet wird. Bei einem weiteren Absenkvorgang des Sackes stoßen schließlich auch die weiteren Zacken durch das Sackmaterial, unter Umständen durch ein leichtes seitliches Bewegen des Sackes.According to a further development, the teeth arranged in the longitudinal direction on the serrated bridge are preferably arranged somewhat higher on the serrated bridge than the adjacent outer serrations. Characterized an increased surface pressure on the bag material is created by the weight of the bag together with its bagged by the central points such that a quick and easy piercing of the bag material is ensured by the central points. In a further lowering of the bag finally hit the other points through the bag material, possibly by a slight lateral movement of the bag.

Gemäß einer weiteren Weiterbildung weisen die Zacken jeweils an beiden geneigten Seitenkanten, d.h. zweiseitig angeordnete, Schneidkanten auf, welche durch in gleicher Richtung orientierte Fasen oder in entgegengesetzter Richtung orientierte Fasen ausgebildet sind. Im Falle von zweiseitig vorgesehen Schneidkanten wird ein vergrößerter Schnitt in Längsrichtung der Sacköffnungsvorrichtung gewährleistet. Alternierende Fasen der benachbarten Schneidkanten können unter Umständen den Schneidevorgang zum Durchtrennen des Sackmaterials verbessern. Allerdings ist es auch denkbar, dass die Schneidfasen lediglich auf einer Seite der Zacken in Längsrichtung gesehen auf den Zacken vorgesehen sind. Auch eine beliebige Anordnung der Fasen ist durchaus denkbar.According to a further development, the prongs each at both inclined side edges, i. arranged on two sides, cutting edges, which are formed by the same direction oriented chamfers or in the opposite direction oriented chamfers. In the case of two-sided cutting edges provided an enlarged section in the longitudinal direction of the bag opening device is ensured. Alternating chamfers of the adjacent cutting edges may under certain circumstances improve the cutting process for severing the sack material. However, it is also conceivable that the cutting bevels are provided on one side of the teeth in the longitudinal direction seen on the teeth. Any arrangement of the chamfers is quite conceivable.

Gemäß einer weiteren Weiterbildung weist die Sacköffnungsvorrichtung eine an die Dicke des zu öffnenden Sackes angepasste Gesamthöhe bzw. die Zackenbrücke eine an die Dicke des zu öffnenden Sackes angepasste Brückenhöhe und/oder Zackenhöhe derart auf, dass die den Sack öffnenden Zacken den zu öffnenden Sack nicht rückseitig durchstoßen. Folglich wird die Ausgestaltung der Sacköffnungsvorrichtung bzw. die Bogenausgestaltung der Zackenbrücke an den jeweils zu öffnenden Sack derart angepasst, dass zum Verringern einer Verletzungsgefahr des Benutzers die Zacken den zu öffnenden Sack nicht rückseitig durchbrechen.According to a further development, the bag-opening device has a height adapted to the thickness of the bag to be opened or the jaw bridge a bridge height and / or tooth height adapted to the thickness of the bag to be opened such that the prongs opening the bag do not open the bag to be opened punctured. Consequently, the configuration of the sack opening device or the sheet design of the serrated bridge is adapted to the respectively openable bag such that to reduce a risk of injury of User's teeth do not break the bag to be opened on the back.

Gemäß einer weiteren Weiterbildung weist die Befestigungseinrichtung zwei gegenüberliegende Befestigungsabschnitte auf, wobei an jedem freien Ende der Zackenbrücke jeweils ein Befestigungsabschnitt vorgesehen ist. Durch zwei derartig diametral zueinander vorgesehene Befestigungsabschnitte kann eine besonders stabile Anbringung auf dem zugeordneten Sackgut-Aufnahmebehälter gewährleistet werden. Es ist für einen Fachmann offensichtlich, dass hier auch andere Ausgestaltungen denkbar sind.According to a further development, the fastening device has two opposite fastening sections, wherein a fastening section is provided at each free end of the toothed bridge. By two such diametrically provided to each other fastening portions a particularly stable attachment to the associated bagged goods receptacle can be ensured. It is obvious to a person skilled in the art that other embodiments are also conceivable here.

Gemäß einer weiteren Weiterbildung weist jeder Befestigungsabschnitt einen oder mehrere Eingriffsabschnitte für einen stabilen Eingriff mit dem Rand des zugeordneten Sackgut-Aufnahmebehälters auf. Beispielsweise weist jeder Befestigungsabschnitt zwei oder drei Eingriffsabschnitte auf, welche an unterschiedlichen Randbereichen des zugeordneten Sackgut-Aufnahmebehälters mit diesem stabil in Eingriff bringbar sind. Dadurch kann ein Verrutschen der Sacköffnungsvorrichtung während des Öffnungsvorgangs vermieden und eine stabile und sichere Entleerung des Sackes gewährleistet werden.According to a further development, each attachment portion has one or more engagement portions for a stable engagement with the edge of the associated bagged goods receptacle. For example, each attachment portion has two or three engagement portions, which are stably engageable with different edge regions of the associated sack receiving container with this. As a result, slippage of the bag opening device can be avoided during the opening process and a stable and safe emptying of the bag can be ensured.

Gemäß einer weiteren Weiterbildung ist die Sacköffnungsvorrichtung aus einem Blechmaterial mit einer vorbestimmten Blechdicke, beispielsweise mit einer Blechdicke von in etwa 3 mm, ausgebildet. Dies erleichtert das Herstellungsverfahren und reduziert die Herstellungskosten.According to a further development, the bag-opening device is formed from a sheet metal material having a predetermined sheet thickness, for example with a sheet thickness of approximately 3 mm. This facilitates the manufacturing process and reduces the manufacturing cost.

Gemäß einer weiteren Weiterbildung ist die Sacköffnungsvorrichtung bezüglich einer längsverlaufenden Mittelebene und/oder bezüglich einer querverlaufenden Mittelebene spiegelsymmetrisch ausgebildet. Dies kann ebenfalls zu einer Reduzierung der Herstellungskosten aufgrund eines vereinfachten Formwerkzeuges beitragen.According to a further development, the bag-opening device is designed mirror-symmetrically with respect to a longitudinal center plane and / or with respect to a transverse center plane. This may also contribute to a reduction in manufacturing costs due to a simplified mold.

Die Erfindung wird im Folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegende Figur näher erläutert.The invention will be explained in more detail below with reference to embodiments with reference to the accompanying figure.

Figur 1 zeigt hierbei eine perspektivische Ansicht einer Sacköffnungsvorrichtung zum Öffnen eines ein Sackgut beinhaltenden Sackes gemäß einem bevorzugten Ausführungsbeispiel der vorliegenden Erfindung. FIG. 1 shows a perspective view of a bag opening device for opening a sack-containing sack according to a preferred embodiment of the present invention.

Wie in Figur 1 dargestellt ist, weist die Sacköffnungsvorrichtung 1 vorzugsweise zwei gegenüberliegende Befestigungsabschnitte 10, 20 auf. Jeder Befestigungsabschnitt 10, 20 weist gemäß dem vorliegenden Ausführungsbeispiel drei Eingriffsabschnitte 11, 12, 13 bzw. 21, 22, 23 auf. Es können auch lediglich zwei oder mehr als drei Eingriffsabschnitte vorgesehen sein, ohne den vorliegenden Erfindungsgedanken zu verlassen.As in FIG. 1 is shown, the bag opening device 1 preferably has two opposite attachment portions 10, 20. Each attachment portion 10, 20 has according to the present embodiment, three engagement portions 11, 12, 13 and 21, 22, 23 respectively. It can also be provided only two or more than three engagement sections, without departing from the present inventive concept.

Wie in Figur 1 ferner dargestellt ist, ist jeder Befestigungsabschnitt 10, 20 gemäß dem vorliegenden Ausführungsbeispiel in etwa T-förmig ausgebildet, wobei die beiden seitlichen Stege 11, 13 bzw. 21, 23 leicht gekrümmt derart ausgebildet sind, dass sie mit dem zugeordneten Rand des Sackgut-Aufnahmebehälters stabil in Eingriff bringbar sind. Des Weiteren weist jeder Befestigungsabschnitt 10, 20 einen mittigen Steg 12 bzw. 22 auf, der ebenfalls mit dem Rand des Sackgut-Aufnahmebehälters in Eingriff bringbar ist. Folglich sind die drei vorgesehenen Eingriffsabschnitte 11, 12, 13 des Befestigungsabschnitts 10 bzw. die Eingriffsabschnitte 21, 22, 23 des Befestigungsabschnitts 20 an die Randkrümmung des Sackgut-Aufnahmebehälters angepasst ausgebildet, derart, dass ein stabiler, beispielsweise kraft- und/oder formschlüssiger, Eingriff mit dem Rand des Sackgut-Aufnahmebehälters gewährleistet ist.As in FIG. 1 Furthermore, each mounting portion 10, 20 according to the present embodiment is approximately T-shaped, wherein the two lateral webs 11, 13 and 21, 23 are slightly curved in such a way that they are associated with the associated edge of the bagged goods receptacle stable engageable. Furthermore, each attachment portion 10, 20 has a central web 12 and 22, which is also engageable with the edge of the bagged goods receptacle. Consequently, the three provided engagement sections 11, 12, 13 of the attachment section 10 or the engagement sections 21, 22, 23 of the attachment section 20 are adapted to the edge curvature of the bagged goods receptacle such that a stable, for example non-positive and / or positive fit, Engagement is ensured with the edge of the bagged goods receptacle.

Die Befestigungsabschnitte 10, 20 sind jeweils von außen gesehen beispielsweise leicht konkav gekrümmt ausgebildet, um an die Krümmung des Randes des Sackgut-Aufnahmebehälters angepasst zu sein. Vorzugsweise sind die einzelnen Eingriffsabschnitte 11, 12, 13 bzw. 21, 22, 23 derart ausgebildet und ausgerichtet, dass ein Verklemmen der jeweiligen Befestigungsabschnitte 10, 20 im zugeordneten Randbereich des Sackgut-Aufnahmebehälters auf einfache Weise gewährleistet wird.The attachment portions 10, 20 are each formed, for example, slightly concave curved seen from the outside, to be adapted to the curvature of the edge of the bagged goods receptacle. The individual engagement sections 11, 12, 13 or 21, 22, 23 are preferably designed and aligned such that jamming of the respective fastening sections 10, 20 in the associated edge region the bagged goods receptacle is ensured in a simple manner.

Ferner ist vorzugsweise jeder Eingriffsabschnitt 11, 12, 13 bzw. 21, 22, 23 als Eingriffshaken ausgebildet, wie in Figur 1 dargestellt ist, um ein einfaches Einhängen der Eingriffsabschnitte an den Rand des Sackgut-Aufnahmebehälters zu gewährleisten.Further, each engaging portion 11, 12, 13 and 21, 22, 23 is preferably formed as an engagement hook, as in FIG. 1 is shown to ensure easy hooking the engagement portions to the edge of the bagged goods receptacle.

Des Weiteren sind die beiden Befestigungsabschnitte 10, 20 gemäß dem vorliegenden Ausführungsbeispiel über eine Zackenbrücke 30 miteinander verbunden. Die Zackenbrücke 30 weist mehrere, beispielsweise vier Zacken 31, 32, 33, 34 auf, welche vorzugsweise in Längsrichtung der Sacköffnungsvorrichtung 1 hintereinander vorgesehen sind.Furthermore, the two fastening sections 10, 20 are connected to each other via a serrated bridge 30 according to the present exemplary embodiment. The serrated bridge 30 has a plurality of, for example, four tines 31, 32, 33, 34, which are preferably provided one behind the other in the longitudinal direction of the sack opening device 1.

Die Zackenbrücke 30 ist vorzugsweise als in Richtung zur Oberseite hin bogenförmig ausgebildete Brücke ausgestaltet. Des Weiteren sind vorzugsweise vier Zacken 31, 32, 33, 34 auf der Oberseite der Zackenbrücke 30 angeordnet, wobei die beiden mittigen Zacken 32, 33 eine etwas weiter nach oben orientierte Höhe aufweisen als die beiden benachbarten seitlichen Zacken 31, 34. Dadurch wird gewährleistet, dass der Sack beim anfänglichen Auflegen auf die Zackenbrücke 30 einen erhöhten Flächendruck durch die beiden mittigen Zacken 32, 33 erfährt und das Sackmaterial leichter durchstoßen werden kann.The serrated bridge 30 is preferably configured as a bridge that is curved in the direction of the upper side. Furthermore, four prongs 31, 32, 33, 34 are preferably arranged on the upper side of the serrated bridge 30, the two central prongs 32, 33 having a height oriented somewhat further upwards than the two adjacent lateral prongs 31, 34 in that the bag experiences an increased surface pressure by the two central prongs 32, 33 during initial placement on the serrated bridge 30, and the bag material can be pierced more easily.

An dieser Stelle sei darauf hingewiesen, dass die Anzahl sowie die Anordnung und Ausgestaltung der einzelnen Zacken selbstverständlich in Abhängigkeit der gesamten Dimensionierung der Sacköffnungsvorrichtung sowie der Dimensionierung des zu öffnenden Sackes variierbar ist und angepasst werden kann.It should be noted at this point that the number and the arrangement and configuration of the individual prongs can, of course, be varied and adjusted as a function of the overall dimensioning of the bag-opening device and the dimensioning of the bag to be opened.

Wie in Figur 1 schematisch dargestellt ist, weist jede Zacke vorzugsweise zwei Schneidkanten an den seitlich geneigten Zackenkanten auf. Der Übersichtlichkeit halber sind in Figur 1 rein exemplarisch die zwei Schneidkanten der Zacke 32 mit den Bezugszeichen 35, 36 versehen. Folglich weist jede Zacke gemäß dem vorliegenden Ausführungsbeispiel an beiden Seiten, also zweiseitig angeordnete Schneidkanten in Form von entsprechenden Fasen auf. Beispielsweise können alle Fasen aller Zacken in Längsrichtung gesehen zur gleichen Seite hin orientiert sein. Es ist allerdings auch vorstellbar, dass die Orientierung der einzelnen Fasen der Schneidkanten der einzelnen Zacken wechselseitig oder nach einem vorbestimmten Anordnungsmuster vorgesehen ist.As in FIG. 1 is shown schematically, each prong preferably has two cutting edges on the laterally inclined teeth edges. For the sake of clarity, in FIG. 1 purely by way of example, the two cutting edges of the tine 32 with the reference numerals 35, 36 provided. Consequently, each point according to the present embodiment has on both sides, ie two-sided cutting edges in the form of corresponding chamfers. For example, all chamfers of all prongs can be oriented in the longitudinal direction to the same side. However, it is also conceivable that the orientation of the individual chamfers of the cutting edges of the individual prongs is provided alternately or according to a predetermined arrangement pattern.

Es ist auch vorstellbar, dass die Zacken an jeder Zackenkante jeweils in Längsrichtung gesehen an beiden Seiten eine entsprechend vorgesehene Fase aufweisen. Hier ist es für einen Fachmann offensichtlich, dass Schneidkanten in jeder erdenklichen Form an den Zacken entweder gleich, wechselseitig oder in irgendeiner anderen Ausgestaltung vorgesehen sein können.It is also conceivable that the teeth on each serrated edge, viewed in the longitudinal direction, have a correspondingly provided chamfer on both sides. Here it is obvious to a person skilled in the art that cutting edges in any imaginable form can be provided at the serrations either equal, reciprocal or in any other configuration.

Die Höhe der Sacköffnungsvorrichtung 1 bzw. der gesamten Zackenbrücke 30 ist vorzugsweise derart ausgestaltet, dass die obersten Zacken 32, 33 bei einem Aufliegen des Sackes auf dem Rand des Sackgut-Aufnahmebehälters nicht den Sack rückseitig durchstoßen, um das Verletzungsrisiko des Benutzers zu minimieren. Es ist für einen Fachmann offensichtlich, dass die Sacköffnungsvorrichtung 1 auch für verschiedene Sackgut-Aufnahmebehälter sowie für verschiedene Sackdimensionierungen ausgelegt sein kann.The height of the sack opening device 1 or the entire jaw bridge 30 is preferably designed such that the supreme serrations 32, 33 do not pierce the sack at the back of the sack on the edge of the sack goods receptacle in order to minimize the risk of injury to the user. It is obvious to a person skilled in the art that the bag opening device 1 can also be designed for various bagged goods receptacles as well as for different bag sizing.

Vorzugsweise ist die Sacköffnungsvorrichtung 1 aus einem vorbestimmten Blechmaterial mit einer vorbestimmten Blechdicke ausgebildet. Beispielsweise wird eine Blechdicke von in etwa 3 mm ausgewählt. Es ist auch denkbar, dass die Sacköffnungsvorrichtung 1 aus mehreren Einzelteilen, beispielsweise drei Einzelteilen zusammengefügt ist, um den Herstellungsprozess zu vereinfachen und die Kosten zu reduzieren.Preferably, the bag opening device 1 is formed of a predetermined sheet material having a predetermined sheet thickness. For example, a sheet thickness of about 3 mm is selected. It is also conceivable that the bag opening device 1 is assembled from several individual parts, for example three individual parts, in order to simplify the manufacturing process and to reduce the costs.

Die Sacköffnungsvorrichtung 1 kann auch beispielsweise bezüglich einer quer verlaufenden Mittelebene spiegel- oder achsensymmetrisch ausgebildet sein, wie in Figur 1 exemplarisch dargestellt ist. Allerdings sind auch andere Symmetriearten denkbar und vom vorliegenden Schutzbereich mitumfasst.The bag opening device 1 can also be mirror-symmetrical or axially symmetrical, for example with respect to a transverse center plane, as in FIG FIG. 1 is shown as an example. However, other types of symmetry are conceivable and encompassed by the present scope of protection.

Obwohl die vorliegende Erfindung anhand bevorzugter Ausführungsbeispiele vorstehend beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Art und Weise modifizierbar.Although the present invention has been described above with reference to preferred embodiments, it is not limited thereto, but modifiable in a variety of ways.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
SacköffnungsvorrichtungBag opening device
1010
Befestigungsabschnittattachment section
1111
Eingriffsabschnittengaging portion
1212
Eingriffsabschnittengaging portion
1313
Eingriffsabschnittengaging portion
2020
Befestigungsabschnittattachment section
2121
Eingriffsabschnittengaging portion
2222
Eingriffsabschnittengaging portion
2323
Eingriffsabschnittengaging portion
3030
Zackenbrückepink bridge
3131
Zackejag
3232
Zackejag
3333
Zackejag
3434
Zackejag
3535
Schneidkantecutting edge
3636
Schneidkantecutting edge

Claims (10)

  1. Bag opening device (1) for opening a bag containing bagged goods, with:
    a fixing device (10, 20) for fixing the bag opening device (1) to an associated bagged goods receptacle; and
    a serrated bridge (30) connected to the fixing device (10, 20), which is curved outwards in the direction of the upper side and whose upper side has one or more points (31, 32, 33, 34) for opening the bag.
  2. Bag opening device (1) according to claim 1, characterised in that the upper side of the serrated bridge (30) has a plurality of points (31, 32, 33, 34) arranged in the longitudinal direction behind one another.
  3. Bag opening device (1) according to claim 1 or claim 2, characterised in that points (32, 33) disposed centrally in the longitudinal direction are arranged slightly higher on the serrated bridge (30) than the adjacent outer points (31, 34).
  4. Bag opening device (1) according to any one of the preceding claims, characterised in that the points (31, 32, 33, 34) on both inclined lateral edges have cutting edges (35, 36) which are formed, for example, by means of bevels oriented in the same direction or bevels oriented in the opposing direction.
  5. Bag opening device (1) according to any one of the preceding claims, characterised in that the bag opening device (1), the serrated bridge (30) and/or the points (31, 32, 33, 34) are of a height adapted to the thickness of the bag to be opened such that the points (31, 32, 33, 34) opening the bag do not puncture the rear side of said bag.
  6. Bag opening device (1) according to any one of the preceding claims, characterised in that the fixing device (10, 20) has two opposing fixing portions (10, 20), one fixation portion (10, 20) being in each case provided at each free end of the serrated bridge (30).
  7. Bag opening device (1) according to claim 6, characterised in that each fixing portion (10; 20) has one or several engaging portions (11, 12, 13; 21, 22, 23) for stable engagement with the edge of the associated bagged goods receptacle.
  8. Bag opening device (1) according to any one of the preceding claims, characterised in that each fixing portion (10; 20) has two or three engaging portions (11, 12, 13; 21, 22, 23) which can engage stably with, in particular can be clamped to, different edge regions of the associated bagged goods receptacle.
  9. Bag opening device (1) according to any one of the preceding claims, characterised in that the bag opening device (1) is provided in a sheet metal material with a predetermined sheet thickness, for example a sheet thickness of approximately 3 mm.
  10. Bag opening device (1) according to any one of the preceding claims, characterised in that the bag opening device (1) is provided mirror-symmetrically with reference to a longitudinally oriented central plane and/or with reference to a transversely oriented central plane.
EP15757469.0A 2015-01-14 2015-08-26 Bag opening device Active EP3057874B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015000098.3U DE202015000098U1 (en) 2015-01-14 2015-01-14 Sack opening device for opening a bag containing a material to be bagged
PCT/EP2015/069516 WO2016113003A1 (en) 2015-01-14 2015-08-26 Sack-opening device for opening a sack containing sack goods

Publications (2)

Publication Number Publication Date
EP3057874A1 EP3057874A1 (en) 2016-08-24
EP3057874B1 true EP3057874B1 (en) 2016-11-16

Family

ID=52580409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15757469.0A Active EP3057874B1 (en) 2015-01-14 2015-08-26 Bag opening device

Country Status (4)

Country Link
EP (1) EP3057874B1 (en)
DE (1) DE202015000098U1 (en)
DK (1) DK3057874T3 (en)
WO (1) WO2016113003A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3702339A1 (en) 2019-03-01 2020-09-02 Uzin Utz AG Dust-free self-levelling mastic

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576492A (en) * 1947-05-05 1951-11-27 Frank J Vogel Bag slitter
US2796184A (en) * 1955-04-11 1957-06-18 Turco Products Inc Bag opener
US3948402A (en) * 1973-07-16 1976-04-06 Schott Jr Charles Mandeville Bag opening and emptying
CN104118058B (en) * 2014-06-27 2017-02-08 冯政 Mixer hopper refitting method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2016113003A1 (en) 2016-07-21
DK3057874T3 (en) 2017-02-20
EP3057874A1 (en) 2016-08-24
DE202015000098U1 (en) 2015-02-05

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