EP2200788A1 - Device and method for guiding a material web - Google Patents
Device and method for guiding a material webInfo
- Publication number
- EP2200788A1 EP2200788A1 EP08828979A EP08828979A EP2200788A1 EP 2200788 A1 EP2200788 A1 EP 2200788A1 EP 08828979 A EP08828979 A EP 08828979A EP 08828979 A EP08828979 A EP 08828979A EP 2200788 A1 EP2200788 A1 EP 2200788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- longitudinal cutting
- material web
- cutting
- cutting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 108
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241001474791 Proboscis Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/02—Means for moving the cutting member into its operative position for cutting
-
- 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
- B26D1/00—Cutting 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
- B26D1/01—Cutting 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
- B26D1/02—Cutting 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
- B26D1/03—Cutting 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
- B26D1/035—Cutting 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
-
- 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
- B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
-
- 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
- B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
- B26D2007/0068—Trimming and removing web edges
-
- 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
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
-
- 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
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/414—Winding
- B65H2301/4148—Winding slitting
- B65H2301/41487—Winding 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.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007042025.2A DE102007042025B4 (en) | 2007-09-05 | 2007-09-05 | Device and method for guiding a material web |
PCT/EP2008/007281 WO2009030491A1 (en) | 2007-09-05 | 2008-09-05 | Device and method for guiding a material web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2200788A1 true EP2200788A1 (en) | 2010-06-30 |
EP2200788B1 EP2200788B1 (en) | 2019-11-06 |
Family
ID=40201996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08828979.8A Active EP2200788B1 (en) | 2007-09-05 | 2008-09-05 | Device and method for guiding a material web |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2200788B1 (en) |
DE (1) | DE102007042025B4 (en) |
WO (1) | WO2009030491A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011015544A1 (en) | 2011-03-30 | 2012-10-04 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Device and method for marginal trimming a material web |
DE202011004608U1 (en) | 2011-03-30 | 2012-07-04 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Device for edge trimming of a material web |
DE102014102604A1 (en) * | 2014-02-27 | 2015-08-27 | Windmöller & Hölscher Kg | Device for automatic cutting and removal of a material web and method for this purpose |
CN107073736B (en) * | 2014-11-05 | 2019-09-13 | 福伊特专利有限公司 | The air guide plate and method of leftover pieces for derived materials width |
CN104723386B (en) * | 2015-03-16 | 2017-01-04 | 上海绿顺包装机械有限公司 | A kind of honeycomb cardboard cutting device |
CN110919532B (en) * | 2019-12-02 | 2021-07-09 | 顾建伟 | Improved wire drawing wheel for metal material wire drawing treatment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545686A (en) * | 1968-03-15 | 1970-12-08 | Du Pont | Shredder |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762250A (en) * | 1971-06-16 | 1973-10-02 | Du Pont | Method of and apparatus for handling material |
DE8703518U1 (en) * | 1986-09-06 | 1987-05-07 | Wilhelm Dahle Buero- Und Zeichengeraetefabrik, 8630 Coburg, De | |
DE4133760A1 (en) * | 1991-10-11 | 1993-04-15 | Bhs Bayerische Berg | METHOD AND DEVICE FOR THE PRODUCTION OF CORRUGATED CARDBOARDS WITH CHANGEABLE FORMAT |
DE9203472U1 (en) * | 1992-02-15 | 1992-06-04 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg, De | |
FI98346C (en) | 1994-03-31 | 1997-06-10 | Enfoplan Oy | Method and apparatus for cutting a moving paper web edge |
DE19703367C2 (en) * | 1997-01-30 | 1999-01-07 | Karl Lutz | Method for producing a web of predetermined width and device for carrying out the method |
DE19824710A1 (en) * | 1998-06-03 | 1999-12-09 | Schloemann Siemag Ag | New method for use of circular trimming shears for cutting of steel tape or sheet metal |
ATE330745T1 (en) * | 2001-10-10 | 2006-07-15 | Bwg Bergwerk Walzwerk | METHOD FOR TRIMING STRIPS, PARTICULARLY HOT ROLLED METAL STRIPS |
DE102004016217A1 (en) | 2004-04-01 | 2005-10-20 | Brueckner Maschbau | Method and device for processing a film web |
-
2007
- 2007-09-05 DE DE102007042025.2A patent/DE102007042025B4/en active Active
-
2008
- 2008-09-05 WO PCT/EP2008/007281 patent/WO2009030491A1/en active Application Filing
- 2008-09-05 EP EP08828979.8A patent/EP2200788B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545686A (en) * | 1968-03-15 | 1970-12-08 | Du Pont | Shredder |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009030491A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102007042025A1 (en) | 2009-03-26 |
EP2200788B1 (en) | 2019-11-06 |
WO2009030491A1 (en) | 2009-03-12 |
DE102007042025B4 (en) | 2018-12-20 |
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