EP1792863B1 - Severing device for webs - Google Patents

Severing device for webs Download PDF

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Publication number
EP1792863B1
EP1792863B1 EP06024388A EP06024388A EP1792863B1 EP 1792863 B1 EP1792863 B1 EP 1792863B1 EP 06024388 A EP06024388 A EP 06024388A EP 06024388 A EP06024388 A EP 06024388A EP 1792863 B1 EP1792863 B1 EP 1792863B1
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EP
European Patent Office
Prior art keywords
protective
severing
blade
protective device
film
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.)
Not-in-force
Application number
EP06024388A
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German (de)
French (fr)
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EP1792863A2 (en
EP1792863A3 (en
Inventor
Dieter Brand
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.)
Leifheit AG
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Leifheit AG
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Filing date
Publication date
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Publication of EP1792863A2 publication Critical patent/EP1792863A2/en
Publication of EP1792863A3 publication Critical patent/EP1792863A3/en
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Publication of EP1792863B1 publication Critical patent/EP1792863B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/02—Tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/10—Safety means, e.g. for preventing injuries or illegal operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to a separating device for film webs with a fixed blade, by means of a film web is severable, and with a protective device, wherein the protective device is arranged to be movable relative to the blade and alternately into an initial position or a cutting position can be transferred.
  • a roll holder for film webs in which a pivotable lid is provided with a cutting blade, by means of which a portion of a film web is separable. On the lid, a protruding cutting blade is arranged, at which the user can injure in careless action.
  • a film holder in which a cutting blade is pivotally connected to a cover.
  • the cutting blade is partially concealed, but is pivoted upon pressing the film web onto the cover to cut the film.
  • This device has the disadvantage that the cutting blade can accelerate when pressure on the cover and so there is a risk of injury.
  • the mechanics of the pivotable cutting blade is relatively expensive.
  • EP 1 346 938 A2 is known a winding and Abschneidmaschine for paper webs.
  • the machine has a guide for the paper web, which guides the web either to a retractor or to a cutter.
  • the present invention has for its object to provide a separation device, on the one hand largely safe and on the other hand allows a reliable and easy separation of a film web.
  • a separating device which is characterized in that at least the part of the protective device which comes into contact with the film to be cut has a rough surface and / or a wave structure and / or a groove structure.
  • the separating device according to the invention which is particularly suitable for separating cling film
  • at least that part of the protective device that comes into contact with the film to be cut is provided with a rough surface and / or a wave structure.
  • at least the part of the protective device which comes into contact with the film to be cut grooves on. Since, in particular cling film has the property of adhering particularly well, the separation process by the aforementioned surface design of the protective device considerably be relieved. By applying a wave structure and / or a rough surface and / or grooves on the protective device, results in a smaller contact surface, whereby the disturbing adhesive effect can be significantly reduced and the separation process is simplified.
  • the waves -′ has the further advantage that it can be attached at no extra cost - for example in an injection molding process - and that, for example, unavoidable markings from exdodation by injection molding can easily be easily laminated between the grooves or between the waves.
  • the grooves or the waves are arranged parallel to the cutting edge of the blade.
  • the separating device preferably has a fixed - preferably strip-shaped blade, which is preferably arranged so that the user sees them, whereby the risk of injury - especially compared to moving blades or compared to fully covered blades - is considerably reduced.
  • the protective device is arranged to be movable relative to the blade.
  • the protection device is pivotally and / or rotatably arranged.
  • the protective device is arranged linearly displaceable.
  • the protective device is arranged such that they protrude in the starting position from a lateral view over the cutting edge, thereby the cutting edge in the initial position is largely harmless, since the user can access the separated film web on the cover and thus not in Contact with the cutting edge can get.
  • the protective device is designed such that it can be pressed into the cutting position with the film web to be separated. This ensures that the user does not get in contact with the cutting edge of the blade, since he has to hold down the film web to be separated in order to press the protective device into the cutting position.
  • the protective flanks of the protective device may be the inner flanks of a U-shaped protective component.
  • the protective device exposes in the cutting position exclusively the part of the blade which is necessary for separating.
  • stop and / or fixing devices may be provided for temporary fixing of the protective device in the cutting position.
  • the variant in which only the necessary parts for separating the blade are exposed in the cutting position has the particular advantage that the risk of serious injury and deep cuts is avoided.
  • the separating device according to the invention may be designed such that only a part of the cutting edge (for example 0.5 mm or 1 mm) in the cutting position does not protrude beyond the protective device. There are therefore no injury cuts possible, go deeper than the extent to which the blade can protrude beyond the protection device in the cutting position at all.
  • a spring device which presses the protective device into the starting position.
  • the user - ideally with the film web itself - presses the protection device against the force of the spring device from the initial position to the cutting position to perform a separation process. After the separation process, the spring device automatically pushes the protective device back from the cutting position to the starting position.
  • the blade is held in a U-profile.
  • This embodiment makes it possible to use thin blades, especially if it is a U-shaped metal profile, which gives the blade its rigidity. As a result, the deflection of the blade, especially in the central region, significantly reduced.
  • the blade has a straight cutting edge. In another embodiment, the blade has a serrated and / or a wavy edge. The embodiment of the cutting edge can be adapted to the properties of the film web to be cut.
  • the separating device can be used particularly well with roll holders, for example with wall roll holders.
  • Roll holders which are equipped with a separating device according to the invention are particularly advantageous.
  • Such a roll holder preferably has a holding device for receiving at least supply roll.
  • the roll holder at least two protruding arms are provided for carrying a supply roll.
  • the separating device is arranged on the protruding arms.
  • a roll holder may have a plurality of separating devices and / or a plurality of receptacles for a plurality of supply rolls.
  • Fig. 1 shows a roll holder 1 according to the invention with a separating device 3 and a further separating device 5 in a perspective view.
  • the separation device 3 and the second separation device 5 have the same structure.
  • the roll holder 1 has two protruding arms 7, 9 with a holding device for receiving a supply roll 11. At the protruding arms 7, 9 and the separation device 3 is arranged.
  • the separating device 3 has a fixed blade 13, by means of which the wound on the supply roll 11 film web 15 can be severed.
  • a protective device 17 is provided which is movable relative to the blade 13 - namely, pivotable - and is alternately in an initial position or a cutting position can be transferred.
  • the protective device 17 of the separating device 3 is shown in the cutting position.
  • the further protective device 19 of the further separating device 5 is shown in the starting position.
  • At least the part of the protective device 17 or the further protective device 19, which comes into contact with the film to be cut, has a groove structure 21, 23.
  • the grooves are arranged parallel to the cutting edge of the blade 13
  • Fig. 2 shows the roll holder 1 according to the invention with a separator 3 and another separator 5 in a sectional view.
  • the protective device 17 has two mutually facing protective edges 25, wherein the protective edges 25, the cutting edge 27 of the blade 13 in the initial position surrounded on both sides and exposing the cutting edge 27 in the cutting position.
  • a spring device which presses the protective device 17 in the starting position. With the film web 15 to be separated, the protective device 17 can be pressed against the force of the spring device in the cutting position.
  • FIGS. 3 and 4 show detailed views Fig. 1 ,
  • Fig. 5 shows an integrally formed protective device 17 from the side in a sectional view.
  • the protective device 17 has a corrugated structure on the upper side, whereby the adhesion of the film web is reduced to an extent that allows easy operation.
  • the guard 17 holds the film end in an easily graspable position; At the same time, however, the user does not have to expend any great forces in order to detach the film web 15 from the protective device 17.

Abstract

The cutting device (3,5) has protection device (17,19) and a part of the protection device, which comes in contact with the foil which is to be cut, has a rough surface or crimping structure or a grooved structure (21,23). The device has a fixed blade (13) by means of which a foil strip (15) is cut. An independent claim is included for roll holder.

Description

Die Erfindung betrifft eine Trennvorrichtung für Folienbahnen mit einer feststehenden Klinge, mittels der eine Folienbahn durchtrennbar ist, und mit einer Schutzvorrichtung, wobei die Schutzvorrichtung relativ zu der Klinge beweglich angeordnet ist und wechselweise in eine Ausgangsstellung oder eine Schneidstellung überführbar ist.The invention relates to a separating device for film webs with a fixed blade, by means of a film web is severable, and with a protective device, wherein the protective device is arranged to be movable relative to the blade and alternately into an initial position or a cutting position can be transferred.

Aus DE 84 098 53 ist ein Rollenhalter für Folienbahnen bekannt, bei dem ein schwenkbarer Deckel mit einer Schneidklinge vorgesehen ist, mittels dem ein Abschnitt einer Folienbahn abtrennbar ist. An dem Deckel ist eine hervorstehende Schneidklinge angeordnet, an der sich der Benutzer bei unachtsamen Vorgehen verletzen kann.Out DE 84 098 53 a roll holder for film webs is known, in which a pivotable lid is provided with a cutting blade, by means of which a portion of a film web is separable. On the lid, a protruding cutting blade is arranged, at which the user can injure in careless action.

Aus GB 2255925 ist ein Folienhalter bekannt, bei dem eine Schneidklinge schwenkbar mit einer Abdeckung verbunden ist. Die Schneidklinge ist teilweise verdeckt angeordnet, wird jedoch bei Aufdrücken der Folienbahn auf die Abdeckung verschwenkt, um die Folie abzuschneiden. Diese Vorrichtung hat den Nachteil, dass die Schneidklinge bei Druck auf die Abdeckung hervorschnellen kann und so eine Verletzungsgefahr besteht. Außerdem ist die Mechanik der verschwenkbaren Schneidklinge vergleichsweise aufwendig.Out GB 2255925 a film holder is known in which a cutting blade is pivotally connected to a cover. The cutting blade is partially concealed, but is pivoted upon pressing the film web onto the cover to cut the film. This device has the disadvantage that the cutting blade can accelerate when pressure on the cover and so there is a risk of injury. In addition, the mechanics of the pivotable cutting blade is relatively expensive.

Aus EP 819640 und aus DE 199 04 783 A1 sind Folienhalter bekannt, bei denen eine Schneidklinge mit einem Hebel verbunden ist, wobei durch eine Belastung des Hebels durch die Folienbahn die Schneidklinge verschwenkt wird, um die Folienbahn abzutrennen. Diese Vorrichtungen haben den Nachteil, dass sich der Benutzer nach dem Abtrennen der Folie, insbesondere beim Ergreifen eines neuen abzuschneidenden Folienabschnitts, verletzen kann.Out EP 819640 and from DE 199 04 783 A1 film holders are known in which a cutting blade is connected to a lever, wherein by a load of the lever through the film web, the cutting blade is pivoted to separate the film web. These devices have the disadvantage that the user after the separation of the film, in particular when seizing a new cut off film section, can hurt.

Aus US 1,231,415 ist ein Rollenhalter mit einem Abschneider bekannt, der eine verschwenkbare Abdeckung aufweist. Die verschwenkbare Abdeckung ist in einer Ausgangsposition unmittelbar vor der Schneide der Abschneidklinge angeordnet und kann mit Hilfe der abzutrennenden Folienbahn gegen die Gewichtskraft nach oben verschwenkt werden, wodurch die Abschneidklinge freigegeben wird. Diese Vorrichtung hat den Nachteil, dass die so angeordnete Abdeckung mit der Folienbahn nicht zuverlässig in die Schneidposition überführbar ist, vielmehr verklemmt sich die abzuschneidende Folienbahn im Verschwenkmechanismus der Abdeckung, ohne dass es zu einem Abtrennvorgang kommt.Out US 1,231,415 a roll holder with a cutter is known which has a pivotable cover. The pivotable cover is arranged in a starting position immediately in front of the cutting edge of the cutting blade and can be pivoted with the aid of the separated film web against the weight up, whereby the cutting blade is released. This device has the disadvantage that the thus arranged cover with the film web can not be reliably transferred to the cutting position, but rather the film web to be cut off jams in the pivoting mechanism of the cover, without causing a separation process.

Aus EP 1 346 938 A2 ist eine Aufwickel- und Abschneidmaschine für Papierbahnen bekannt. Die Maschine weist eine Führungsvorrichtung für die Papierbahn auf, die die Papierbahn entweder zu einer Aufrollvorrichtung oder zu einer Abschneidvorrichtung leitet.Out EP 1 346 938 A2 is known a winding and Abschneidmaschine for paper webs. The machine has a guide for the paper web, which guides the web either to a retractor or to a cutter.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde eine Trennvorrichtung anzugeben, die einerseits weitgehend sicher ist und dabei andererseits ein zuverlässiges und einfaches Abtrennen einer Folienbahn ermöglicht.The present invention has for its object to provide a separation device, on the one hand largely safe and on the other hand allows a reliable and easy separation of a film web.

Die Aufgabe wird durch eine Trennvorrichtung gelöst, die dadurch gekennzeichnet ist, dass zumindest der Teil der Schutzvorrichtung, der mit der zu schneidenden Folie in Berührung kommt, eine raue Oberfläche und/oder eine Wellenstruktur und/oder eine Rillenstruktur aufweist.The object is achieved by a separating device, which is characterized in that at least the part of the protective device which comes into contact with the film to be cut has a rough surface and / or a wave structure and / or a groove structure.

Vorteilhafter Weise ist bei erfindungsgemäßen Trennvorrichtung, die insbesondere zum Abtrennen von Frischhaltefolie geeignet ist, ist zumindest der Teil der Schutzvorrichtung, der mit der zur schneidenden Folie in Berührung kommt, mit einer rauen und/oder einer Wellenstruktur aufweisenden Oberfläche versehen. In einer anderen Ausführungsform weist zumindest der Teil der Schutzvorrichtung, der mit der zu schneidenden Folie in Berührung kommt, Rillen auf. Da insbesondere Frischhaltefolie die Eigenschaft hat besonders gut anzuhaften, kann der Abtrennvorgang durch die genannte Oberflächengestaltung der Schutzvorrichtung erheblich erleichtert werden. Durch das Aufbringen einer Wellenstruktur und/oder einer rauen Oberfläche und/oder von Rillen auf die Schutzvorrichtung, ergibt sich eine geringere Kontaktfläche, wodurch der störende Klebeeffekt deutlich verringert werden kann und der Abtrennvorgang vereinfacht wird. Ein ähnlicher Effekt könnte beispielsweise durch das Aufbringen eines Gleitmittels erzielt werden. Hierbei lässt die Wirkung mit der Zeit durch Verbrauch des Gleitmittels nach und es erhebt sich die Problematik der Lebensmittelechtheit, wenn die Folienbahn zum Verpacken von Lebensmitteln verwendet werden soll. Das Wellen -bzw. das Rillenprofil hat den weiteren Vorteil, dass es ohne Mehrkosten - beispielsweise in einem Spritzgießverfahren - anbringbar ist und dass beispielsweise unvermeidbare Markierungen vom Exdrodieren im Spritzgießverfahren leicht zwischen den Rillen bzw. zwischen den Wellen leicht kaschiert werden können. In einer vorteilhaften Ausführungsform sind die Rillen bzw. die Wellen parallel zur Schneide der Klinge angeordnet.Advantageously, in the case of the separating device according to the invention, which is particularly suitable for separating cling film, at least that part of the protective device that comes into contact with the film to be cut is provided with a rough surface and / or a wave structure. In another embodiment, at least the part of the protective device which comes into contact with the film to be cut, grooves on. Since, in particular cling film has the property of adhering particularly well, the separation process by the aforementioned surface design of the protective device considerably be relieved. By applying a wave structure and / or a rough surface and / or grooves on the protective device, results in a smaller contact surface, whereby the disturbing adhesive effect can be significantly reduced and the separation process is simplified. A similar effect could be achieved, for example, by the application of a lubricant. Here, the effect with time by consumption of the lubricant decreases and it raises the problem of food authenticity, if the film web is to be used for packaging food. The waves -bzw. The groove profile has the further advantage that it can be attached at no extra cost - for example in an injection molding process - and that, for example, unavoidable markings from exdodation by injection molding can easily be easily laminated between the grooves or between the waves. In an advantageous embodiment, the grooves or the waves are arranged parallel to the cutting edge of the blade.

Erfindungsgemäß weist die Trennvorrichtung vorzugsweise eine feststehende - vorzugsweise leistenförmige Klinge auf, die vorzugsweise derart angeordnet ist, dass der Benutzer sie sieht, wodurch das Verletzungsrisiko - insbesondere im Vergleich zu beweglichen Klingen oder im Vergleich zu vollständig abgedeckten Klingen - erheblich reduziert ist.According to the invention, the separating device preferably has a fixed - preferably strip-shaped blade, which is preferably arranged so that the user sees them, whereby the risk of injury - especially compared to moving blades or compared to fully covered blades - is considerably reduced.

In einer vorteilhaften Ausgestaltungsform der erfindungsgemäßen Trennvorrichtung ist die Schutzvorrichtung relativ zu der Klinge beweglich angeordnet. In einer besonderen Ausführungsform ist die Schutzvorrichtung schwenkbar und/oder drehbar angeordnet. In einer anderen Ausführungsvariante ist die Schutzvorrichtung linear verschiebbar angeordnet.In an advantageous embodiment of the separating device according to the invention, the protective device is arranged to be movable relative to the blade. In a particular embodiment, the protection device is pivotally and / or rotatably arranged. In another embodiment, the protective device is arranged linearly displaceable.

In einer vorteilhaften Ausgestaltungsform ist die Schutzvorrichtung derart angeordnet, dass sie in der Ausgangsstellung aus einer seitlichen Ansicht betrachtet über die Schneide hervorstehen, dadurch ist die Schneide in der Ausgangsstellung weitgehend ungefährlich, da der Benutzer die abzutrennende Folienbahn auf der Abdeckung greifen kann und somit nicht in Kontakt mit der Schneide gelangen kann.In an advantageous embodiment, the protective device is arranged such that they protrude in the starting position from a lateral view over the cutting edge, thereby the cutting edge in the initial position is largely harmless, since the user can access the separated film web on the cover and thus not in Contact with the cutting edge can get.

Die Schutzvorrichtung ist derart ausgeführt, dass sie mit der abzutrennenden Folienbahn in die Schneidstellung gedrückt werden kann. Hierdurch ist gewährleistet, dass der Benutzer nicht in Kontakt mit der Schneide der Klinge gerät, da er zum Herunterdrücken der Schutzvorrichtung in die Schneidstellung die abzutrennende Folienbahn in den Händen halten muss.The protective device is designed such that it can be pressed into the cutting position with the film web to be separated. This ensures that the user does not get in contact with the cutting edge of the blade, since he has to hold down the film web to be separated in order to press the protective device into the cutting position.

Besonders vorteilhaft ist eine Ausführungsform bei der nach Ausführung des Abtrennvorgangs das beispielsweise von einer Vorratsrolle kommende Schnittende an einer der Schutzflanken der Schutzvorrichtung haften bleibt. Diese Ausführungsform hat den Vorteil, dass der Benutzer für den nächsten Abtrennvorgang die Folienbahn einfach ergreifen kann.Particularly advantageous is an embodiment in which after execution of the separation process, for example, coming from a supply roll end of the cut adheres to one of the protective flanks of the protection device. This embodiment has the advantage that the user can easily grasp the film web for the next separation process.

Besonders vorteilhaft ist eine Ausführungsform bei der die beiden Schutzflanken der Schutzvorrichtung zusammen einstückig hergestellt sind.Particularly advantageous is an embodiment in which the two protective edges of the protection device are made together in one piece.

Beispielsweise können die Schutzflanken der Schutzvorrichtung die Innenflanken eines u-förmigen Schutzbauteils sein.For example, the protective flanks of the protective device may be the inner flanks of a U-shaped protective component.

In einer besonders vorteilhaften Ausgestaltungsform der erfindungsgemäßen Trennvorrichtung legt die Schutzvorrichtung in der Schneidstellung ausschließlich den zum Abtrennen notwendigen Teil der Klinge frei. Es können beispielsweise Anschlag- und/oder Fixiervorrichtungen zum vorübergehenden Fixieren der Schutzvorrichtung in der Schneidstellung vorgesehen sein. Die Variante bei der nur die zum Abtrennen notwendigen Teile der Klinge in der Schneidstellung freigelegt sind, hat den besonderen Vorteil, dass die Gefahr von schweren Verletzungen und tiefen Schnitten vermieden ist. Beispielsweise kann die erfindungsgemäße Trennvorrichtung derart ausgeführt sein, dass nur ein keiner Teil der Schneide (z.B. 0,5 mm oder 1 mm) in der Schneidstellung über die Schutzvorrichtung herausragt. Es sind daher keine Verletzungsschnitte möglich, die tiefer gehen, als das Maß in dem die Klinge über die Schutzvorrichtung in der Schneidstellung überhaupt herausragen kann.In a particularly advantageous embodiment of the separating device according to the invention, the protective device exposes in the cutting position exclusively the part of the blade which is necessary for separating. For example, stop and / or fixing devices may be provided for temporary fixing of the protective device in the cutting position. The variant in which only the necessary parts for separating the blade are exposed in the cutting position, has the particular advantage that the risk of serious injury and deep cuts is avoided. For example, the separating device according to the invention may be designed such that only a part of the cutting edge (for example 0.5 mm or 1 mm) in the cutting position does not protrude beyond the protective device. There are therefore no injury cuts possible, go deeper than the extent to which the blade can protrude beyond the protection device in the cutting position at all.

In einer besonderen Ausgestaltungsform ist eine Federeinrichtung vorgesehen, die die Schutzvorrichtung in die Ausgangstellung drückt. In dieser Ausführungsform ist vorgesehen, dass der Benutzer - idealerweise mit der Folienbahn selbst - die Schutzvorrichtung gegen die Kraft der Federeinrichtung aus der Ausgangstellung in die Schneidstellung drückt, um einen Abtrennvorgang auszuführen. Nach erfolgtem Abtrennvorgang drückt die Federeinrichtung die Schutzvorrichtung automatisch aus der Schneidstellung in die Ausgangsstellung zurück.In a particular embodiment, a spring device is provided which presses the protective device into the starting position. In this Embodiment is provided that the user - ideally with the film web itself - presses the protection device against the force of the spring device from the initial position to the cutting position to perform a separation process. After the separation process, the spring device automatically pushes the protective device back from the cutting position to the starting position.

In einer mit besonders wenigen Bauteilen herzustellenden Ausführungsform der erfindungsgemäßen Trennvorrichtung ist die Klinge in einem U-Profil gehaltert. Diese Ausführungsform erlaubt es, dünne Klingen zu verwenden, insbesondere dann, wenn es sich um ein u-förmiges Metallprofil handelt, das der Klinge seine Steifigkeit verleiht. Hierdurch wird die Durchbiegung der Klinge, insbesondere im mittleren Bereich, erheblich reduziert.In an embodiment of the separating device according to the invention to be produced with particularly few components, the blade is held in a U-profile. This embodiment makes it possible to use thin blades, especially if it is a U-shaped metal profile, which gives the blade its rigidity. As a result, the deflection of the blade, especially in the central region, significantly reduced.

In einer Ausführungsform weist die Klinge eine gerade Schneide auf. In einer anderen Ausführungsform weist die Klinge eine gezackte und/oder eine gewellte Schneide auf. Die Ausführungsart der Schneide kann auf die Eigenschaften der zu schneidenden Folienbahn abgestimmt werden.In one embodiment, the blade has a straight cutting edge. In another embodiment, the blade has a serrated and / or a wavy edge. The embodiment of the cutting edge can be adapted to the properties of the film web to be cut.

Erfindungsgemäß lässt sich die Trennvorrichtung besonders gut mit Rollenhaltern, beispielsweise mit Wandrollenhaltern, einsetzen. Besonders vorteilhaft sind Rollenhalter, die mit einer erfindungsgemäßen Trennvorrichtung ausgerüstet sind.According to the invention, the separating device can be used particularly well with roll holders, for example with wall roll holders. Roll holders which are equipped with a separating device according to the invention are particularly advantageous.

Ein solcher Rollenhalter weist vorzugsweise eine Haltevorrichtung zur Aufnahme zumindest Vorratsrolle auf. In einer vorteilhaften Ausführungsform des Rollenhalters sind zumindest zwei hervorstehende Arme zum Tragen einer Vorratsrolle vorgesehen. In einer besonders kompakten und leicht zu handhabenden Ausführungsform eines Rollenhalters ist die Trennvorrichtung an den hervorstehenden Armen angeordnet. Ein Rollenhalter kann mehrere Trennvorrichtungen und/oder mehrere Aufnahmen für mehrere Vorratsrollen aufweisen.Such a roll holder preferably has a holding device for receiving at least supply roll. In an advantageous embodiment of the roll holder at least two protruding arms are provided for carrying a supply roll. In a particularly compact and easy-to-handle embodiment of a roll holder, the separating device is arranged on the protruding arms. A roll holder may have a plurality of separating devices and / or a plurality of receptacles for a plurality of supply rolls.

In der Zeichnung ist der Erfindungsgegenstand schematisch dargestellt und wird anhand der Figuren nachfolgend beschrieben, wobei gleich wirkende Elemente mit denselben Bezugszeichen versehen sind. Dabei zeigt:

Fig. 1
Einen erfindungsgemäßen Rollenhalter mit einer Trennvorrichtung in einer Perspektivansicht,
Fig. 2
einen erfindungsgemäßen Rollenhalter mit einer Trennvorrichtung in einer Schnittdarstellung,
Fig. 3
eine Detaildarstellung einer erfindungsgemäßen Trennvorrichtung,
Fig. 4
eine weitere Detaildarstellung einer erfindungsgemäßen Trennvorrichtung, und
Fig. 5
eine einstückig ausgebildete Schutzvorrichtung von der Seite.
In the drawing, the subject invention is shown schematically and will be described below with reference to the figures, wherein like-acting elements are provided with the same reference numerals. Showing:
Fig. 1
A roll holder according to the invention with a separating device in a perspective view,
Fig. 2
a roller holder according to the invention with a separating device in a sectional view,
Fig. 3
a detailed representation of a separating device according to the invention,
Fig. 4
a further detail of a separation device according to the invention, and
Fig. 5
an integrally formed protection device from the side.

Fig. 1 zeigt einen erfindungsgemäßen Rollenhalter 1 mit einer Trennvorrichtung 3 und einer weiteren Trennvorrichtung 5 in einer Perspektivansicht. Die Trennvorrichtung 3 und die zweite Trennvorrichtung 5 sind gleich aufgebaut. Der Rollenhalter 1 weist zwei hervorstehende Arme 7, 9 mit einer Haltevorrichtung zur Aufnahme einer auf Vorratsrolle 11 auf. An den hervorstehende Arme 7, 9 ist auch die Trennvorrichtung 3 angeordnet. Die Trennvorrichtung 3 weist eine feststehende Klinge 13, mittels der die auf Vorratsrolle 11 aufgewickelte Folienbahn 15 durchtrennbar ist. Ferner ist eine Schutzvorrichtung 17 vorgesehen, die relativ zu der Klinge 13 beweglich - nämlich schwenkbar - ist und wechselweise in eine Ausgangsstellung oder eine Schneidstellung überführbar ist. Die Schutzvorrichtung 17 der Trennvorrichtung 3 ist in der Schneidstellung dargestellt. Die weitere Schutzvorrichtung 19 der weiteren Trennvorrichtung 5 ist in der Ausgangsstellung gezeigt. Fig. 1 shows a roll holder 1 according to the invention with a separating device 3 and a further separating device 5 in a perspective view. The separation device 3 and the second separation device 5 have the same structure. The roll holder 1 has two protruding arms 7, 9 with a holding device for receiving a supply roll 11. At the protruding arms 7, 9 and the separation device 3 is arranged. The separating device 3 has a fixed blade 13, by means of which the wound on the supply roll 11 film web 15 can be severed. Further, a protective device 17 is provided which is movable relative to the blade 13 - namely, pivotable - and is alternately in an initial position or a cutting position can be transferred. The protective device 17 of the separating device 3 is shown in the cutting position. The further protective device 19 of the further separating device 5 is shown in the starting position.

Jeweils zumindest der Teil der Schutzvorrichtung 17 bzw. der weiteren Schutzvorrichtung 19, der mit der zu schneidenden Folie in Berührung kommt, weist eine Rillenstruktur 21, 23 auf. Die Rillen sind parallel zur Schneide der Klinge 13 angeordnetIn each case at least the part of the protective device 17 or the further protective device 19, which comes into contact with the film to be cut, has a groove structure 21, 23. The grooves are arranged parallel to the cutting edge of the blade 13

Fig. 2 zeigt den erfindungsgemäßen Rollenhalter 1 mit einer Trennvorrichtung 3 und einer weiteren Trennvorrichtung 5 in einer Schnittdarstellung. Fig. 2 shows the roll holder 1 according to the invention with a separator 3 and another separator 5 in a sectional view.

Die Schutzvorrichtung 17 weist zwei einander zugewandte Schutzflanken 25 aufweist, wobei die Schutzflanken 25 die Schneide 27 der Klinge 13 in der Ausgangsstellung beidseitig umgeben und in der Schneidstellung die Schneide 27 freilegen.The protective device 17 has two mutually facing protective edges 25, wherein the protective edges 25, the cutting edge 27 of the blade 13 in the initial position surrounded on both sides and exposing the cutting edge 27 in the cutting position.

Es ist eine nicht dargestellte Federeinrichtung vorgesehen, die die Schutzvorrichtung 17 in die Ausgangsstellung drückt. Mit der abzutrennenden Folienbahn 15 kann die Schutzvorrichtung 17 gegen die Kraft der Federeinrichtung in die Schneidstellung gedrückt werden.There is provided a spring device, not shown, which presses the protective device 17 in the starting position. With the film web 15 to be separated, the protective device 17 can be pressed against the force of the spring device in the cutting position.

Die Figuren 3 und 4 zeigen Detaildarstellungen aus Fig. 1.The FIGS. 3 and 4 show detailed views Fig. 1 ,

Fig. 5 zeigt eine einstückig ausgebildete Schutzvorrichtung 17 von der Seite in einer Schnittdarstellung. Die Schutzvorrichtung 17 weist eine Wellelstruktur auf der Oberseite auf, wodurch das Anhaften der Folienbahn auf ein Maß vermindert wird, das eine leichte Bedienbarkeit ermöglicht. Die Schutzvorrichtung 17 hält das Folienende in einer leicht greifbaren Position fest; gleichzeitig muss der Benutzer jedoch keine großen Kräfte aufwenden, um die Folienbahn 15 von der Schutzvorrichtung 17 zu lösen. Fig. 5 shows an integrally formed protective device 17 from the side in a sectional view. The protective device 17 has a corrugated structure on the upper side, whereby the adhesion of the film web is reduced to an extent that allows easy operation. The guard 17 holds the film end in an easily graspable position; At the same time, however, the user does not have to expend any great forces in order to detach the film web 15 from the protective device 17.

Die Erfindung wurde in Bezug auf eine besondere Ausführungsform beschrieben. Es ist jedoch selbstverständlich, dass Änderungen und Abwandlungen durchgeführt werden können, ohne dabei den Schutzbereich der nachstehenden Ansprüche zu verlassen.The invention has been described with reference to a particular embodiment. However, it is to be understood that changes and modifications may be made without departing from the scope of the following claims.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Rollenhalterroll holder
33
Trennvorrichtungseparating device
55
weitere Trennvorrichtungfurther separation device
77
Armpoor
99
Armpoor
1111
Vorratsrollesupply roll
1313
Klingeblade
1515
Folienbahnsheet
1717
Schutzvorrichtungguard
1919
weitere Schutzvorrichtungfurther protection device
2121
Rillenstrukturgroove structure
2323
Rillenstrukturgroove structure
2525
Schutzflankenprotective edges
2727
Schneidecutting edge

Claims (10)

  1. Device for severing film webs, having a fixed blade by means of which a film web can be severed, and having a protective device arranged such that it can be moved relative to the blade and can be transferred alternately into a starting position or a cutting position, wherein the protective device can be pushed into the cutting position with the film web to be severed, characterized in that at least that part of the protective device which comes into contact with the film to be cut has a rough surface and/or an undulating structure and/or a grooved structure.
  2. Severing device according to Claim 1,
    characterized in that the protective device has two protective flanks facing one another, wherein the protective flanks enclose the cutting edge of the blade on both sides in the starting position and expose the cutting edge in the cutting position.
  3. Severing device according to either of Claims 1 and 2, characterized in that at least that part of the protective device which comes into contact with the film to be cut has grooves which are arranged parallel to the cutting edge.
  4. Severing device according to one of Claims 1 to 3, characterized in that the protective device is arranged such that it can be pivoted and/or rotated and/or displaced linearly.
  5. Severing device according to one of Claims 1 to 4, characterized in that the two protective flanks are the inner flanks of a u-shaped protective component.
  6. Severing device according to one of Claims 1 to 5, characterized in that in the cutting position the protective device exposes exclusively that part of the blade which is required for severing.
  7. Severing device according to one of Claims 1 to 6, characterized in that a stopping and/or fixing device for temporarily fixing the protective device in the cutting position is provided.
  8. Severing device according to one of Claims 1 to 7, characterized in that a spring device is provided which pushes the protective device into the starting position.
  9. Roll holder having at least one severing device according to one of Claims 1 to 8.
  10. Roll holder according to Claim 9, characterized in that the roll holder has at least two projecting arms for carrying a supply roll and in that the severing device is arranged on the projecting arms.
EP06024388A 2005-11-30 2006-11-24 Severing device for webs Not-in-force EP1792863B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005057390A DE102005057390A1 (en) 2005-11-30 2005-11-30 Cutting device for foil strips, has protection device and a part of protection device, which comes in contact with foil which is to be cut, has rough surface or crimping structure or grooved structure

Publications (3)

Publication Number Publication Date
EP1792863A2 EP1792863A2 (en) 2007-06-06
EP1792863A3 EP1792863A3 (en) 2007-08-01
EP1792863B1 true EP1792863B1 (en) 2009-12-16

Family

ID=37806065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024388A Not-in-force EP1792863B1 (en) 2005-11-30 2006-11-24 Severing device for webs

Country Status (4)

Country Link
EP (1) EP1792863B1 (en)
AT (1) ATE452096T1 (en)
DE (2) DE102005057390A1 (en)
ES (1) ES2337171T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311278A (en) * 1965-10-12 1967-03-28 Auzvill Jackson Jr Dispenser and cutter and the like
DE29612436U1 (en) * 1996-07-17 1996-09-19 Kesseboehmer Draht & Metall H Separating device for film webs
US6725753B2 (en) * 2002-07-03 2004-04-27 Clinton C. Bell Dispenser for rolled material

Also Published As

Publication number Publication date
ES2337171T3 (en) 2010-04-21
DE502006005653D1 (en) 2010-01-28
EP1792863A2 (en) 2007-06-06
DE102005057390A1 (en) 2007-05-31
ATE452096T1 (en) 2010-01-15
EP1792863A3 (en) 2007-08-01

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