WO2009030491A1 - Dispositif et procédé de guidage d'une bande de matière - Google Patents

Dispositif et procédé de guidage d'une bande de matière Download PDF

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Publication number
WO2009030491A1
WO2009030491A1 PCT/EP2008/007281 EP2008007281W WO2009030491A1 WO 2009030491 A1 WO2009030491 A1 WO 2009030491A1 EP 2008007281 W EP2008007281 W EP 2008007281W WO 2009030491 A1 WO2009030491 A1 WO 2009030491A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
longitudinal cutting
material web
cutting
cutting device
Prior art date
Application number
PCT/EP2008/007281
Other languages
German (de)
English (en)
Inventor
Holger Frische
Werner Beckonert
Original Assignee
Windmöller & Hölscher Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmöller & Hölscher Kg filed Critical Windmöller & Hölscher Kg
Priority to EP08828979.8A priority Critical patent/EP2200788B1/fr
Publication of WO2009030491A1 publication Critical patent/WO2009030491A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02Means for moving the cutting member into its operative position for cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/03Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
    • B26D1/035Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D9/00Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0068Trimming and removing web edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18Means for removing cut-out material or waste
    • B26D7/1845Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863Means for removing cut-out material or waste by non mechanical means by suction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • B65H2301/41487Winding slitting trimming edge

Definitions

  • the invention relates to a device and a method for guiding a material web which uses at least one longitudinal cutting means for adjusting the width of the material web, with which the web is separable along its direction of movement (z).
  • Devices of this type are known. They are typically found downstream of equipment or machines that make or at least process the webs in a manner that results in variations in the width of the web.
  • the first category (production of webs) includes, for example, film extrusion lines in which variations in the format of the extruded films are inherent in the system. Especially with so-called cast film systems, these fluctuations are not negligible. Even with blown film equipment, there are fluctuations in the diameter of the bubble, which of course leads to variations in the width of the flattened or cut film. Even when cutting such a film fluctuations in the cutting line can occur, which also makes a trim edge of the film web necessary.
  • the second category (processing of webs) includes machines, for example laminating machines and other machines, which have a great influence on the shape of the material web.
  • Downstream of such devices for guiding and adjusting the width of the material web are often winding points, which wind the web to a winding.
  • the device for guiding and adjusting the Width of the web also structurally combined with the winding device or part of the winding device.
  • winding device instead of the winding device can also be a device in the web transport direction downstream of the device for guiding and
  • Material webs of plastic preferably plastic film, or paper to be transported by the transport device.
  • the width of the web is adjusted by trimming it.
  • one or both edges of the web can be “cut off.”
  • the person skilled in the art calls this measure “edge trimming”.
  • knife blades or wedges are known as longitudinal cutting means.
  • longitudinal cutting means it is also possible to use the longitudinal section through a jet of a medium
  • WO 2005/105635 A1 shows a device for guiding a material web, which has at least one longitudinal cutting means for adjusting the width of the material web, with which the web runs along its Movement direction (z) in at least two partial webs, one of which is the edge strips, is separable.
  • the edge strip is passed to a gripping and transporting device and separated at a later time, by means of a cutting device.
  • the material web can be deflected laterally away from the knife edge, wherein the knife edge no longer performs any edge trimming. This can cause problems in the further processing of the web. Also machine downtime can not be excluded, which can cause high costs.
  • the object of the present invention is to propose a device which avoids the disadvantages described above.
  • the width of the web is detected by a sensor.
  • the reflection or transmission of the film eg optically
  • the cutting means is deactivated, ie moved away from the cutting position in the case of a knife. This avoids that the knife obstructs the run of the material web when it comes by an increase in its width back into the cutting area. Without removing the knife from the cutting position, the widening web would run against the blunt flank of the knife and "build up" on this, as it may occur in devices of the prior art.
  • Longitudinal cutting device detected by a sensor.
  • the longitudinal cutting device is activated only when the material web already over the potential cutting area of the slitter, the so-called effective range of
  • the proportion of the edge region, which the expert calls "waste" is below 10% of the total material web width.
  • a transverse cutting device is provided in addition to the longitudinal cutting device.
  • the task of the cross-cutting device is to provide a partial web (edge strip) after re-entry of the material web into the region of the longitudinal cutting device with a cross-section. Since the knife of the longitudinal cutting device, only after renewed exceeding the target width of the material web is guided in this, the partial webs (edge strip and main film web) are still connected to each other via a foil lug. In order for at least two separate partial webs to form, a cross section of a partial web (in this case edge strips) must take place.
  • the cross-cutting device is mounted farther downstream than the slitter and provided with a control unit. These Control unit calculates the time difference in which the knife of the cross-cutting device must enter the material web to perform the cross section when the beginning of the longitudinal section has arrived at the cross-sectional location.
  • the time difference which must have the cross section compared to the "new" longitudinal section, is mainly dependent on the conveying speed of the material web.
  • edge strip (or partial web) is in
  • Cross section for separating the edge strip from the film web no longer has to be made manually, which is too complicated during machine operation and therefore causes machine downtime.
  • the above-mentioned suction device for discharging a partial web can, in a particularly preferred embodiment, consist of a suction proboscis which is adjustably mounted perpendicular to the transport direction of the material web.
  • the edge strip can be optimally removed from the remaining material web.
  • the individual partial webs are transported synchronously via a conveyor roller. Subsequently, a partial web (here the edge strip) is removed from the suction device.
  • the longitudinal cutting device can be folded away with a component orthogonal to the material web or to the plane of the material web surface.
  • the threading of the material strand is simplified at the start of production.
  • the conveying roller described above for transporting the individual partial webs is equally stored folded away.
  • FIG. 1 cross-section of a device for guiding a material web in normal operation
  • FIG. 2 top view of a device for guiding a web in the
  • FIG. 3 shows a sketch of a method sequence at a first point in time A;
  • FIG. 4 shows a sketch of a method sequence at a second point in time B.
  • FIG. 5 A sketch of a method sequence at a third point in time C.
  • Fig. 1 shows the front view and Fig. 2 is a side view along the section AA of a device according to the invention.
  • the material web 1 is guided via a guide roller 2 to a spreader roller 22, which serves for stretching the material web 1 transversely to the transport direction z.
  • the material web 1 is transported downstream to the first longitudinal cutting devices 5a, 5b, which divide the material web 1 into individual advantages 1a, 1b, 1c and the edge region or edge section 1a ', 1b'.
  • the longitudinal cutting devices 5a, 5b are mounted on a cutter bar 18 and laterally displaceable on this.
  • the longitudinal cutting devices 5a, 5b consist of a holder, which can each accommodate two blade pushers, the respective lower blade cutting the material web 1.
  • the upper blade can be replaced by a simple pusher 8, the worn lower blade during operation.
  • the lateral position of the longitudinal cutting devices 5a, 5b can be reproducibly adjusted by means of scale units which are mounted on the cutter bar 18.
  • the knife bar 18 can be pivoted with the longitudinal cutting devices 5a, 5b for easier feeding or threading of the material web 1 at the start of production pneumatically through the cylinder 19 orthogonal to the material web 1.
  • this device is meant that the cutter bar with a pivoting movement, which also contains components in the direction of the solder on the material web surface (in Figure 3 y-direction) is pivoted away from the material web 1.
  • Each longitudinal cutting device 5a, 5b is provided with a spring-loaded fender for Secured protection of the cutting blades. When swinging the knife bar, the cutting blades disappear inside the mudguard.
  • the blade slider 8 is additionally equipped with a pneumatic cylinder 7, with which the blades can be moved away from the material web 1 or toward the material web 1.
  • the driving in of the blade into the material web 1 is referred to below as “activation” and the driving away with “deactivation” of the longitudinal cutting devices 5a.
  • the pneumatic cylinder 7 is controlled by a control device comprising two sensors 3a, 3b, which are mounted above the longitudinal cutting devices 5a. These are, for example, optical sensors, for example infrared sensors. But tactile sensors are also conceivable here. These sensors 3a, 3b detect whether the width of the edge strip 21 is greater than the distance between sensor 3a and 3b. To reduce the edge structure at the end faces of the material web roll 23, a transverse pivoting 21 of the cutter bar 18 is attached.
  • the longitudinal cutting devices 5a, 5b equipped with a L Lucasschangtechnik 20 so that the material web 1 is not always performed on the same position of the blade.
  • the blades of the slitter 5 a, 5 b are equipped with a heater, since tests have shown that heated blades give a better cut quality.
  • This assembly consists of two plates 15, which are connected to one another by means of crossbars and is mounted rotatably about the axis 13 to the lateral frame 25 of the device.
  • the pneumatic cylinder 16 With the pneumatic cylinder 16, the rubberized preferred roller 9, which is mounted between the plates 15, are pressed against the lower guide roller 4.
  • two laterally displaceable discharge devices 11 for the edge strips 1a ', 1 b' are arranged.
  • This can be suction funnels, but also purely mechanical pick-off devices.
  • the lateral positioning of the discharge devices 11 can be done via a scale.
  • a suction hose 14 and a not shown here associated exhaust fan are mounted.
  • a cross-cutting device 10 is movably mounted. The knife of the cross-cutting device 10 can be moved via a pneumatic cylinder 12 in the direction of the material web 1. The material web 1 then passes over a further guide roller, to a spreader roller 17, via cooling rollers 24 and a contact roller to the web winding 23rd
  • the material web 1 can pass outside the region of the longitudinal cutting devices 5a.
  • the absence of the edge region 21 is detected by the sensor 3b, which sends a signal to the longitudinal cutting means 5a, so that the pneumatic cylinder 7 pulls the blade with the lower blade holder 8 from the material web 1. Now no edge strip 21 is separated from the web 1 more.
  • this 1 again enters the region of the longitudinal cutting devices 5a.
  • the sensor 3a registers the shrinkage of the material web 1 in the edge region. If the edge region is large enough so that an edge strip 21 can be cut off, this is registered by the sensor 3b and a signal from this 3b is sent to the longitudinal cutting devices 5a. Then, the blade with the lower blade holder 8 is guided to the material web 1 with the pneumatic cylinder 7 and a longitudinal section performed.
  • the edge strip 21 is still connected to the benefit 1a, 1c and now runs together with this 1a, 1 b, 1c further downstream in the direction of the roll 23.
  • the cross-cutting device 10 is supplied with a signal from the control device, which takes place with a time delay to the entry of the blade of the longitudinal cutting devices 5a in the web 1.
  • the cross cutting blade of the cross cutting device 10 is connected to the pneumatic cylinder 12 in the direction of Material web 1 moves. By the blade of the cross-cutting blade of the edge strip 21 is slowed down in its movement downstream.
  • FIGS. 3 to 5 show a sketched method sequence of an exemplary embodiment of a method according to the invention at three different points in time.
  • FIG. 1 shows the situation at a first point in time A.
  • the blades 31 are in their cutting position 35. They have severed the web 1 along the cutting line 32.
  • the web is moved in the direction z indicated by the arrow. Accordingly, the dashed line 33 indicates which path the cutting line continues to take when the blades 31 remain in their cutting position as the web is moved further.
  • the sensor 29 can also be seen. He is the cutting blades 31 upstream of the web running direction. It is therefore already foreseeable in FIG. 3 that the area of narrower web 34 first reaches sensor 29 and only then position 35 of blades 31. This condition has occurred at time B.
  • FIG. 4 shows the situation that arises at this second time.
  • the narrower web section 34 has already reached the sensor 29. This has activated an actuator, not shown, which pulls the blades 31 from its cutting position. This fact is symbolized in FIG. 4 by the dotted lines 30, which represent the knife emerging from the web.
  • This "dipping" process can occur so rapidly that part of the dashed line 30 in Figure 4 is no longer severed, but in this case there may be complications as the marginal strips 21 are then caught on the web and not completely severed
  • the edge strips 21 of a discharge device 11 supplied, as shown in Figures 1 and 2 this may inter alia lead to the demolition of the edge strips 21 and thus to damage the web edges. Therefore, it seems advantageous to leave the knife or blades 31 in a cutting-active position 35 until they actually reach the constriction of the web 1 and completely separate the edge strip or strips 21.
  • the beginning of the edge strip 31, which is partially separated after a region of narrower film, is first fed to further processing by following the web 1.
  • further processing will initially consist of winding on a web winding 23.
  • the edge strip 21 is severed by a cross cutting cut and the leading end of the severed edge strip 21 is received by a discharge device 11.
  • One endeavor can be to keep the length of the part of the marginal strip, which is wound with on the winding, small, so that the cross cutting cut is made directly at the beginning or shortly after the beginning of the marginal strip.
  • a control device / computer which is at least in communication with a part of the abovementioned machine components and set for carrying out the method. This is often computer-implemented, preferably done with a program.
  • the relevant computer program or suitable data sequences can be made available to a control device / computer on a data medium or as a data stream (eg by e-mail).
  • Knife or knife actuators which move the knives out of the web plane are advantageous for carrying out the methods outlined above.
  • Good here is a movement that contains at least one component which is orthogonal to the plane of the web in the cutting area (y-direction). This can be a pivoting movement. However, a translation is also conceivable. This can also be exactly orthogonal to the orbital plane.
  • the discharge device can advantageously be equipped with a suction device, so that it sucks the film to be discharged. Some (at least one), if not all, longitudinal and transverse cutting operations and the associated blade movements should be able to be done on-the-fly, that is, while the machine is running.

Abstract

La présente invention concerne un dispositif et un procédé de guidage d'une bande de matière, qui permettent le réglage de la largeur de la bande de matière à l'aide d'au moins un moyen de découpage en longueur qui permet le découpage de la bande de matière dans sa direction de déplacement (z). Dans ces dispositifs, des variations de largeur de la bande de matière peuvent avoir pour effet que la lame du dispositif de découpage en longueur ne vient plus en contact avec la bande de matière. A cet effet, au moins un capteur est utilisé pour prendre des valeurs de mesure à partir desquelles peut être déterminée la largeur de la bande de matière (1), et au moins un dispositif d'actionnement destiné au(x) moyen(s) de découpage en longueur (5a, 5b) permet l'activation et la désactivation du moyen de découpage en longueur (5a, 5b), le dispositif d'actionnement pouvant être commandé par les signaux du ou des capteurs.
PCT/EP2008/007281 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière WO2009030491A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08828979.8A EP2200788B1 (fr) 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007042025.2A DE102007042025B4 (de) 2007-09-05 2007-09-05 Vorrichtung und Verfahren zur Führung einer Materialbahn
DE102007042025.2 2007-09-05

Publications (1)

Publication Number Publication Date
WO2009030491A1 true WO2009030491A1 (fr) 2009-03-12

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ID=40201996

Family Applications (1)

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PCT/EP2008/007281 WO2009030491A1 (fr) 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière

Country Status (3)

Country Link
EP (1) EP2200788B1 (fr)
DE (1) DE102007042025B4 (fr)
WO (1) WO2009030491A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160362271A1 (en) * 2014-02-27 2016-12-15 Windmöller & Hölscher Kg Apparatus for Automatically Cutting and Discharging a Web of Material, and Associated Method
CN107073736A (zh) * 2014-11-05 2017-08-18 福伊特专利有限公司 用于导出材料幅的边角料的空气导引板、用于导出材料幅的边角料的方法以及空气导引板和方法的应用

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015544A1 (de) 2011-03-30 2012-10-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Vorrichtung und Verfahren zum randseitigen Beschneiden einer Materialbahn
DE202011004608U1 (de) 2011-03-30 2012-07-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Vorrichtung zum randseitigen Beschneiden einer Materialbahn
CN104723386B (zh) * 2015-03-16 2017-01-04 上海绿顺包装机械有限公司 一种蜂窝纸板分切装置
CN110919532B (zh) * 2019-12-02 2021-07-09 顾建伟 一种金属材料拉丝处理改良型拉丝轮

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US3762250A (en) * 1971-06-16 1973-10-02 Du Pont Method of and apparatus for handling material
DE9203472U1 (fr) * 1992-02-15 1992-06-04 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg, De
DE4133760A1 (de) * 1991-10-11 1993-04-15 Bhs Bayerische Berg Verfahren und vorrichtung zum herstellen von wellpappeboegen mit veraenderbarem format
DE19703367A1 (de) * 1997-01-30 1998-08-13 Karl Lutz Verfahren zum Herstellen einer Warenbahn vorgegebener Breite und Vorrichtung zur Durchführung des Verfahrens
DE19824710A1 (de) * 1998-06-03 1999-12-09 Schloemann Siemag Ag Verfahren und Vorrichtung zum Besäumen von Bandkanten

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US3545686A (en) * 1968-03-15 1970-12-08 Du Pont Shredder
DE8703518U1 (fr) * 1986-09-06 1987-05-07 Wilhelm Dahle Buero- Und Zeichengeraetefabrik, 8630 Coburg, De
FI98346C (fi) 1994-03-31 1997-06-10 Enfoplan Oy Menetelmä ja laitteisto liikkuvan paperirainan reunan leikkaamiseksi
EP1306154B1 (fr) 2001-10-10 2006-06-21 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Procédé pour cisailler des bandes, en particulier des bandes métalliques laminées à chaud
DE102004016217A1 (de) 2004-04-01 2005-10-20 Brueckner Maschbau Verfahren und Vorrichtung zum Bearbeiten einer Folienbahn

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US3762250A (en) * 1971-06-16 1973-10-02 Du Pont Method of and apparatus for handling material
DE4133760A1 (de) * 1991-10-11 1993-04-15 Bhs Bayerische Berg Verfahren und vorrichtung zum herstellen von wellpappeboegen mit veraenderbarem format
DE9203472U1 (fr) * 1992-02-15 1992-06-04 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg, De
DE19703367A1 (de) * 1997-01-30 1998-08-13 Karl Lutz Verfahren zum Herstellen einer Warenbahn vorgegebener Breite und Vorrichtung zur Durchführung des Verfahrens
DE19824710A1 (de) * 1998-06-03 1999-12-09 Schloemann Siemag Ag Verfahren und Vorrichtung zum Besäumen von Bandkanten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160362271A1 (en) * 2014-02-27 2016-12-15 Windmöller & Hölscher Kg Apparatus for Automatically Cutting and Discharging a Web of Material, and Associated Method
US10654676B2 (en) * 2014-02-27 2020-05-19 Windmöller & Hölscher Kg Apparatus for automatically cutting and discharging a web of material, and associated method
US11292685B2 (en) 2014-02-27 2022-04-05 Windmöller & Hölscher Kg Apparatus for automatically cutting and discharging a web of material, and associated method
CN107073736A (zh) * 2014-11-05 2017-08-18 福伊特专利有限公司 用于导出材料幅的边角料的空气导引板、用于导出材料幅的边角料的方法以及空气导引板和方法的应用

Also Published As

Publication number Publication date
EP2200788A1 (fr) 2010-06-30
DE102007042025A1 (de) 2009-03-26
EP2200788B1 (fr) 2019-11-06
DE102007042025B4 (de) 2018-12-20

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