EP2044250A1 - Kämmmaschine - Google Patents
KämmmaschineInfo
- Publication number
- EP2044250A1 EP2044250A1 EP07720220A EP07720220A EP2044250A1 EP 2044250 A1 EP2044250 A1 EP 2044250A1 EP 07720220 A EP07720220 A EP 07720220A EP 07720220 A EP07720220 A EP 07720220A EP 2044250 A1 EP2044250 A1 EP 2044250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tear
- combing
- roller
- fiber mass
- fiber
- 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
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/14—Drawing-off and delivery apparatus
- D01G19/16—Nipper mechanisms
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G19/00—Combing machines
- D01G19/06—Details
- D01G19/28—Air draught or like pneumatic arrangements
Definitions
- the invention relates to a combing machine with a nipper unit according to the preamble of the main claim 1, to a method or according to claim 13.
- a combing machine whereby a tear-off roller cooperates with a tear-off segment of a combing roller for the tear-off process, has already been developed by Heilmann in 1845.
- a tear-off roller here tear-off cylinder
- the fiber package torn off by a tear-off roller in cooperation with a tear-off segment was delivered to a subsequent roller pair. where it is connected to the end of an already formed web, or soldered.
- the pair of rollers is driven by a pilgrim step movement.
- the length of the fiber tuft projecting beyond the clamping point of the tongs increases by the amount supplied, which is available for the subsequent combing operation in the event of subsequently closed tongs.
- the combed out end of the tuft is transferred with the tongs open again under the action of the tear-off segment into the nip between the tear-off roller and the departure segment. All the fibers then captured by the nip are removed from the present tuft. Since the pliers and the clamping point of the tear-off roller have a constant spacing in this embodiment sen, the end of the tuft is abruptly fed to the nip of a tear-off roller.
- the size of the ecartement ultimately determines the length of the tuft protruding from the closed tongs for the combing process and thus has a direct influence on the height of the noil content (proportion of combed fibers).
- this setting is absolutely necessary in order to achieve the desired quality of a combing machine belt for the subsequent process stages.
- it is necessary to precisely adjust the number of seed particles in order to avoid unnecessary separation, in particular of good fibers (long fibers), which would entail a reduction in productivity.
- the setting of the Ecartement depends on the fiber material, which is presented to the combing machine for processing. Criteria such as the weight of the wadding, the pile (fiber length fraction) and the structure (fiber layer, uniformity) of the wadding provided must be taken into account. Further references to the term “ecartement” are also to be taken from the reference “Die Kurzstapelspinnerei: Volume 3: Kämmerei, Strecken, Flyer, The Textile Institute (ISBN 3-908.059-01-1) on page 16. From the published EP 1 449 944 A1, a pivotally mounted nipper unit can be seen, wherein in the front region of the lower nipper plate an exchangeable or adjustable guide element is provided.
- the length of the tuft protruding from the closed pliers for the combing process can be determined. This makes it possible to change the proportion of noils while maintaining the same ecartement.
- the guide element required on the basis of the material template and the desired noil proportion is installed or adjusted at all the combing points before the combing process. There is no adjustment during the combing process.
- This guide element is permanently installed and, in connection with a pair of pliers pivotally mounted to the breakaway cylinders, is limited to a change in the number of noil parts while maintaining the same degree of ecartement.
- the length of the combed fiber tuft projecting beyond the nip point of the tongs remains the same for the subsequent tearing off and soldering operation.
- the aim is to keep the percentage of combed material as low as possible, provided that a high quality of the combing machine belt can be achieved. In addition, the demand for high productivity exists.
- the object of the invention is therefore to design the combing machine operating according to the "Heilmann principle" in such a way that the disadvantages described above are eliminated and the adjustability to different material templates is improved sought during the withdrawal process to increase the combing effect.
- the lower pliers plate and the detaching roller during a comb play stored at a constant distance and at least one means is provided, which, seen in the conveying direction of the fiber mass, behind the feeding transverse movably mounted to the underside of the fiber mass and connected to a driven adjusting means, via which the means during a comb play periodically produces a change in length of the guide track for the fiber mass within the nipper unit.
- the distance of the nipper unit to Abreisszylinder can be kept relatively low, thereby improving the geometric conditions with regard to the insertion of the Fixkammes in the fiber material during the withdrawal process.
- the means is arranged inside the nipper unit.
- the means - seen in the conveying direction of the fiber mass - may be attached downstream of the feed means and above the lower tong plate. Furthermore, we proposed that the means is at least partially provided with a guide surface for guiding the fiber mass.
- the means is connected via connecting means with the upper clamp knife to perform the adjustment movement.
- the connecting means can thereby establish a fixed connection between the means and the pliers knife.
- the connecting means it is also possible to form the connecting means as a rotatably mounted crank arms which are connected on the one hand to the guide and on the other hand with the pliers blade.
- the guide is pivotally mounted at one end via a pivot axis on the lower pliers plate and the pivoting movement takes place from the movement of the pliers blade.
- the guide surface is formed by a circumferential belt connected to a drive.
- the strapping and the displacement of the cotton are supported beyond the forceps nip addition, when the guide surface is shortened when swinging down the guide means. In other words, the excess material resulting from this shortening must be transported via the forceps nip for the subsequent comb process.
- At least one further guide means is provided at a distance from the guide surface, which is connected to the means and faces the upper side of the fiber mass.
- This further guide means may be mounted in the region of the freely movable end of the means, which may be rotatably mounted at one end, wherein the freely movable end may protrude in the direction of the nip of the nipper unit.
- the drive of the means for adjusting the means is connected to a controller.
- the top comb is connected to drive means and is movably mounted in the direction of the payout roller. This makes it possible that the feeding process can be carried out by the feeding means during the tearing off, wherein the fixing comb moves towards the tear-off roller. As a result, there is no material compression in the area behind the fixed comb set, since this also moves in the direction of the material feed.
- the web-forming device is formed from a rotatably mounted screen drum, which is arranged in the direction of the tangential take-off direction of the tear-off roller in the region of the enveloping circle of the combing cylinder.
- a takeover of the withdrawn fiber packets through the tear-off roller without deflection in another Forderides is possible.
- this assists secure adoption and enables a higher delivery rate of the fiber packets to the web-forming device.
- at least one adjustable guide means for the fiber stream be provided between the tear-off roller and the screen drum.
- a method for forming a combed nonwoven fabric on a combing machine wherein the combing machine has a substantially stationary mounted nipper unit, which is assigned below a rotatably mounted combing cylinder, on its circumference with a combing segment and a tear-off segment is provided with a rotatably mounted Abreisswalze which is mounted at a constant distance to the nipper unit and the Abreissvorgang to form a nip the Abreisssegment undeliverable, and arranged between the nipper unit and the Abreisswalze, provided with a combing set comb and with a Device for web formation, wherein the method is characterized by the following method steps:
- the length of the over the open nip protruding end of the fiber mass is shortened.
- FIG. 1 shows a schematic side view of a combing head of a combing machine with the device according to the invention in the combing position
- FIG. 2 shows an enlarged schematic side view according to FIG. 1 in an intermediate position before the ripping off process
- FIG. 5 shows a partial view according to FIG. 2 with a further embodiment of the actuation of the device
- Guide means in the pliers Fig. 6 is a partial view of FIG. 2 with a guide means with a circumferential
- nipper unit 1 (abbreviated to "pincer") of a combing machine, which is provided with a substantially stationary lower nipper plate 2 and with a pliers knife 3 movably mounted thereon formed with the lower pliers plate 2 a nip KZ for clamping a cotton wool W.
- the cotton wool W may, for example, consist of a cotton web, which is unrolled by a wadding not shown in detail If slivers are used, they are supplied from cans which are stored in the combing machine
- the present example shows only one combing head, but as a rule a large number of such combing heads are arranged next to one another on a combing machine W is intermittently via a rotatably mounted in the nipper unit 1 and intermittent d driven feeding cylinder 5 fed in the conveying direction R of the forceps 1.
- the feed cylinder 5 cooperates with a feeding trough 6 fastened on the tong plate 2.
- a guide 10 is pivotally mounted about an axis of rotation 12 above the lower tong plate 2.
- the pivoting movement takes place here by a schematically shown adjusting means 11 which acts on the axis of rotation 12 and is connected via a line 13 to a control ST in connection.
- this adjusting means 11 the pivoting movement of the guide 10 described below is performed in coordination with the rotational movement of a rotatably mounted below the pliers 1 combing cylinder 16.
- the combing cylinder 16 is provided with a combing cylinder axis 17, which drives the combing cylinder via a drive A1 shown schematically, the drive A1 being connected via the line 18 to the control ST.
- the combing cylinder 16 has distributed on its circumference in each case a combing segment 19 and a tear-off segment 20. Between these segments 19, 20 are respectively Free spaces F1, F2 available.
- the combing segment 19 is z. B. from several consecutively arranged Kämmgarnuren. The Kämmgarnuren can be designed differently.
- a fixed comb 8 is mounted, which is slidably mounted via a drive 9 shown schematically between the pliers 1 and the tear-off roller 24.
- the drive 9 is connected via a line 23 to the controller ST.
- the pivotally mounted within the forceps 1 guide 10 is provided on its upper side and the side which faces the forceps blade 3, with a guide surface 15, on which the cotton wool W is guided.
- the guide 10 has a deflection point U, at which the cotton wool is deflected in the direction of the clamping point KZ.
- a guide element 14 is mounted in the region of the deflection point U.
- the guide element 14 is firmly connected to the guide 10. The distance between the guide surface 15 and the lower side of the guide element 14 is dimensioned so that the cotton wool W can be passed through the available space.
- a web-forming device 30 is arranged in the area of the enveloping circle HK of the combing cylinder 16 and below the tear-off roller 24, a web-forming device 30 is arranged.
- This device 30 is at least partially sealed off by a casing 31 with respect to the ambient air.
- a screen drum 33 is rotatably mounted within this casing.
- Coaxial with the screen drum 33 is rotatably mounted within a cylinder 35 which is distributed on its circumference with two openings S1, S2 is provided, via which the air circulation is controlled by the screen drum.
- the interior of the screen drum 33, and the cylinder 35 is connected to a vacuum shaft 38, wherein for controlling this connection, a valve 39 is provided, which via the line 40 to the controller ST communicates.
- a stationary mounted cover member 42 is disposed in the interior of the cylinder 35, which, in particular in the region of a removal device 44, the inner space of the cylinder 35 under negative pressure seals off from the outside environment. This serves in particular to support the detachment of the fiber fleece V by the removal device from the outer circumference of the screen drum 33.
- the removal device 44 is z. B. from two cooperating rollers W1, W2, which deliver the discharged nonwoven fabric V to a fleece funnel VT, in which a sliver F is formed.
- This sliver F (also called combing machine belt) is z. B. transferred to a table T and transferred with further fiber slivers adjacent combing heads to a subsequent drafting system, not shown.
- a flap 46 is pivotally mounted about an axis of rotation 47.
- the axis of rotation 47 is stationary mounted in the machine frame. As described below, the flap 46 has the task of influencing the fiber material flow.
- the fiber tuft FB protruding beyond the nip KZ of the closed tongs 1 with the length L is located inside the garniture of the combing segment 19. In this case, all the fibers and components which are equal to or smaller than the length L are located , combed out of the tuft FB through the combing segment 19.
- the fixed comb 8 is disengaged and the tear-off roller 24 is lifted by a certain amount from the enveloping circle HK of the combing cylinder 16.
- the flap 46 is in a pivoting position, in which its free end is near the circumference of the screen drum 33.
- the adjustment of the flap 46 is made via an actuating element 49 acting on the pivot axis 47.
- the adjusting element 49 is connected via the line 50 to the controller ST.
- the flap 46 seals off the web-forming device 30 from the material flow of the combed-out components.
- This material flow which can be located on the one hand between the clothing teeth of the combing segment 19 and also outside the enveloping circle HK, is fed downwards to a suction channel 52.
- the suction channel 52 stands with a vacuum source not shown in connection.
- a cleaning brush for cleaning the comb segment is also rotatably mounted in this suction channel.
- the separated constituents (such as short fibers, nits, shell parts, dust, etc.) are fed to a central disposal facility via conveyors (not shown).
- the tuft emerges from the combing segment 19 and enters the free space F 2 between the combing segment 19 and the tear-off segment 20, as can be seen from FIG. 2.
- the forceps 1 is opened by lifting the pliers blade 3.
- the guide 10 is pivoted about the pivot axis 12 upwards and moves away with its deflection point U of the lower tong plate 2.
- the guide member 14 is mitverschwenkt.
- the tear-off roller 24 moves in the direction of the enveloping circle HK of the combing cylinder 16.
- the tear-off segment 20 Upon further rotation of the combing cylinder 16, the tear-off segment 20 enters the region of the tear-off roller 24 and forms with it a nip KA for the end of the cotton wool W.
- the guide 10 Before reaching this position, the guide 10 has been pivoted into the uppermost position shown in FIG. whereby the protruding from the forceps 1 tail has further shortened. This ensures that for the tearing off, the terminal point KA towering end Lx reaches the required level to perform the tearing process.
- the scraper roll 24 is driven in rotation by the driven tear-off segment 20 via the combed cotton wool located between the nip KA. puts. However, it would also be conceivable to provide an additional separate drive for the tear-off gear 24.
- the pivoting of the guide 10 also raises the end of the tuft FB projecting into the tongs 1.
- the fiber tuft protruding from the tongs 1 assumes a position which extends at an angle ⁇ with respect to the tangent of the nip KA.
- the feed cylinder 5 is set in rotary motion via a device, which is no longer shown, in order to feed a wad of the forceps 1.
- the feeding process is supported by the peeling.
- the fixing comb 8 is displaced via the drive 9 in the direction of the tear-off roller 24 until it has reached the position shown in dashed lines.
- This displacement of the Fixkammes corresponds approximately to the dining amount of the fed through the feed whale 5 cotton. This will prevent material buckling in the area behind the top comb.
- the formed fleece V is transferred by the rotary movement of the screen drum 33 into the region of a removal device 44, where it is taken off via the roller pairs W1, W2.
- the removed nonwoven fabric is fed to a nonwoven strainer VT, in which the nonwoven fabric is combined to form a sliver F. This is then, as already described, added on a guide table T with further slivers a subsequent drafting for further processing.
- the guide 10 is pivoted again via the adjusting means 11 under the action of the control ST into the lower position shown in FIG.
- the tear-off roller 24 must be lifted from the enveloping circle HK of the combing cylinder 16.
- the flap 46 is already in the dashed position shown in Figure 4, which is necessary for the subsequent combing process.
- the pliers are closed and the fixed comb is moved back into the position shown in FIG.
- FIG. 5 shows a partial view of FIG. 2, wherein the guide 10 in contrast to the embodiment of FIG. 2 with the pliers blade 3 via laterally attached to the guide webs 55 (only one shown) is connected. Ie. the movement of the guide 10 (as described above) is coupled with the movement of the tong-type knife 3. Also, the guide member 14 is fixed between the webs 55 and thus follows the movement of the pliers blade 3.
- the guide 10 could also be driven by a crank mechanism, not shown.
- the crank mechanism could be controlled either via the movement of the gun 3 or a separate drive.
- the crank mechanism could be controlled either via the movement of the gun 3 or a separate drive.
- a further embodiment of the guide 10 is shown, which is provided with a driven circumferential belt 56.
- the strap 56 is guided over the rollers 58, 59 and a deflecting element 60.
- the rollers 58, 59 are rotatably mounted in a web 10a on the axes of rotation 12, 62.
- the axis of rotation 12 is simultaneously formed as a pivot axis for the pivoting of the guide 10.
- the pivoting of the guide 10 takes place, as described in the example of FIG. 2, via an actuating means 11.
- This is actuated via the line 13 by the controller ST in conjunction with the rotational movement of the combing cylinder 16.
- the adjusting means is articulated directly on the web 55, in contrast to the embodiment of FIG. 1, where the adjusting means 11 is applied to the axis of rotation 12.
- the discontinuous drive of the belt 56 via the drive 64 is controlled via the line 65 from the control unit ST. This control is e.g. in coordination with the rotary motion of the combing cylinder.
- the drive of the belt 56 is on the one hand for the transfer of a new feed amount by the feed cylinder 5 in the direction of the nip KZ of the pliers 1 in progress set.
- the strap 56 can also be driven in order to support the change in length of the guide path of the cotton W within the pliers 1 during pivoting of the guide 10 from a position according to FIG. 3 into a position according to FIG. D. h. That by the pivoting of the guide 10 excess material is al promoted by the driven belt 56 from the forceps 1, whereby the tuft FB is present for the subsequent combing process in a desired length L.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH12082006 | 2006-07-25 | ||
PCT/CH2007/000323 WO2008011734A1 (de) | 2006-07-25 | 2007-07-02 | Kämmmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2044250A1 true EP2044250A1 (de) | 2009-04-08 |
EP2044250B1 EP2044250B1 (de) | 2011-01-05 |
Family
ID=38459840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07720220A Ceased EP2044250B1 (de) | 2006-07-25 | 2007-07-02 | Kämmmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2044250B1 (de) |
CN (1) | CN101495686B (de) |
DE (1) | DE502007006202D1 (de) |
WO (1) | WO2008011734A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2108720B1 (de) * | 2008-04-11 | 2011-06-15 | Maschinenfabrik Rieter Ag | Vorrichtung zur Bildung eines gekämmten Faservlieses |
CH699788A2 (de) * | 2008-10-24 | 2010-04-30 | Rieter Ag Maschf | Kämmvorrichtung zum Kämmen eines Fasermaterials mit Einstellung des Ecartements. |
CH702008A2 (de) * | 2009-10-08 | 2011-04-15 | Rieter Ag Maschf | Kämmmaschine mit Faserbandführungsmittel. |
CH705914A2 (de) * | 2011-12-16 | 2013-06-28 | Rieter Ag Maschf | Rundkamm für eine Kämmmaschine, sowie Kämmmaschine. |
CH709900A2 (de) * | 2014-07-21 | 2016-01-29 | Rieter Ag Maschf | Kämmmaschine. |
IT201800001987A1 (it) * | 2018-01-26 | 2019-07-26 | Marzoli Machines Textile Srl | Macchina pettinatrice |
EP3748051B1 (de) * | 2019-06-05 | 2022-03-09 | OFFICINE GAUDINO SpA | Flachkämmmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996005342A1 (de) * | 1994-08-10 | 1996-02-22 | Csm Sächsische Spinnereimaschinen Gmbh | Vorrichtung zum kämmen von baumwolle oder baumwollähnlichen fasern |
DE19504134C2 (de) * | 1995-02-09 | 1998-08-27 | Csm Gmbh | Zangenapparat für Kämmaschinen mit Rundkammwalze und Abreißwalzen |
CN1090255C (zh) * | 1996-03-29 | 2002-09-04 | 里特机械公司 | 精梳机的分离-和接合装置 |
DE502004006701D1 (de) * | 2003-02-21 | 2008-05-15 | Rieter Ag Maschf | Zangenaggregat für eine Kämmaschine |
-
2007
- 2007-07-02 DE DE502007006202T patent/DE502007006202D1/de active Active
- 2007-07-02 CN CN2007800284656A patent/CN101495686B/zh not_active Expired - Fee Related
- 2007-07-02 EP EP07720220A patent/EP2044250B1/de not_active Ceased
- 2007-07-02 WO PCT/CH2007/000323 patent/WO2008011734A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008011734A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008011734A1 (de) | 2008-01-31 |
DE502007006202D1 (de) | 2011-02-17 |
EP2044250B1 (de) | 2011-01-05 |
CN101495686B (zh) | 2011-04-06 |
CN101495686A (zh) | 2009-07-29 |
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