EP2606167B1 - Reed and weaving machine for weaving pattern formation in woven fabrics with additional pattern effects - Google Patents

Reed and weaving machine for weaving pattern formation in woven fabrics with additional pattern effects Download PDF

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Publication number
EP2606167B1
EP2606167B1 EP11743056.1A EP11743056A EP2606167B1 EP 2606167 B1 EP2606167 B1 EP 2606167B1 EP 11743056 A EP11743056 A EP 11743056A EP 2606167 B1 EP2606167 B1 EP 2606167B1
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EP
European Patent Office
Prior art keywords
reed
teeth
group
longitudinal direction
pointing
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
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EP11743056.1A
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German (de)
French (fr)
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EP2606167A2 (en
Inventor
Adnan Wahhoud
Peter Czura
Harald Arnold
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Publication of EP2606167A2 publication Critical patent/EP2606167A2/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/68—Reeds or beat-up combs not mounted on the slay
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D31/00—Lappet, swivel or other looms for forming embroidery-like decoration on fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay
    • D03D49/62—Reeds mounted on slay
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/26—Travelling-wave-shed looms
    • D03D47/262—Shedding, weft insertion or beat-up mechanisms
    • D03D47/263—Weft insertion and beat-up mechanisms

Definitions

  • the present invention relates to a reed and a weaving machine for weaving pattern in fabrics with additional pattern effects.
  • a weaving machine with which such additional pattern effects are produced includes at least one guide means for one or more effect yarns connected to a displacement device.
  • the effect yarns are displaceable together with the guide means in the weft direction about a displacement path predetermined by a weave pattern.
  • Such devices are further provided for web-pattern dependent vertical movement of the guide means and a Webblatt adopted for striking the weft thread to a fabric edge by means of a stop movement.
  • Such a device shows, for example, the EP 0 957 191 B1 , Tissue of this type is also referred to as additional weft effects, since the additional pattern effect is primarily that the effect threads extending essentially in the warp direction are shifted and set in the weft direction relative to the base warp threads.
  • the US 4 429 722 A discloses a reed in which an upwardly open Rietlücke is formed between each two groups of several, at both ends connected reed teeth.
  • the reed teeth of each of these groups are connected at their upper end by a bevelled connector.
  • the connector forms the Rietlücke towards an edge on which a hanging in the Rietlücke upward thread can get stuck.
  • Object of the present invention is to provide a reed for a loom, in which the formation of additional pattern effects, the immersion of effect threads runs smoothly in the upwardly open Rietlücken a reed.
  • the reed has reed teeth that are lined up by combining their lower ends in a reed collar in a longitudinal direction of the reed such that the upper ends of the reed teeth form unilaterally open-top reed gaps.
  • the reed is according to the invention characterized in that there are several groups of reed teeth, each reed tooth of a first group of Reed teeth has a pointing in the longitudinal direction of the reed insertion at its upper end. This insertion bevel is designed such that it covers the upwardly facing opening of an adjacent Rietlücke at least partially. Furthermore, a second group of reed teeth is present, which have no such insertion bevels.
  • the immersion of effect threads is ensured in the desired Rietlücke, while unintentional immersion in an adjacent Rietlücke is prevented.
  • the insertion bevel of the reed teeth of the first group pointing in the longitudinal direction of the reed is configured such that the upward-facing opening of one or more adjacent open reed gaps and the upper end of one or more adjacent reed teeth belonging to the first group belong to the first group Insertion be covered at least partially. This also prevents the effect threads from getting caught on the upper ends of the adjacent reed teeth.
  • the insertion bevel of the first group of reed teeth is formed as a tapered tongue-like extension of a reed tooth, which is angled in the longitudinal direction of the reed relative to the remaining reed tooth. This shape is easy to manufacture and ensures the desired function.
  • the Rietlücken that are limited by a reed tooth with insertion and are not covered by an insertion, in the longitudinal direction of the reed have a greater width than the Rietlücken, which are covered by an insertion bevel.
  • the reed teeth with insertion bevel in the longitudinal direction of the reed with a greater thickness than the reed teeth without insertion bevel.
  • a weaving machine is equipped with shedding elements, the vertical movement of which forms a weaving shed bounded by warp threads. Furthermore, means for inserting a weft thread into the shed in a weft direction are provided, as well as a Webblatt adopted for striking the weft thread to a fabric edge by means of a stop movement having two end positions.
  • To form the additional pattern effect guide means are provided for effect threads, as well as means for moving the guide means in the weft direction and means for vertical movement of the guide means.
  • a reed with two groups of reed teeth is provided in the manner described above.
  • the guide means are movable in a plane which is arranged between the shedding elements and the end position of the stop movement, which is closer to the shed forming elements.
  • the guide means are thus between the reed and WebMften.
  • the guide means may be formed, for example, as needles, which are arranged on the front of an additional weaving sheave in the weft direction together displaceable in a displacement device, wherein the vertical movement of said guide means is derived from the vertical movement of the additional weaving shank.
  • FIG. 1 shows a reed 4 with Rietzähnen 5, which are summarized at its lower end in a Rietbund 6.
  • Rietzähnen 5 which are summarized at its lower end in a Rietbund 6.
  • FIG. 1 shows a reed 4 with Rietzähnen 5, which are summarized at its lower end in a Rietbund 6.
  • the manner in which such a reed collar 6 is designed is known to the person skilled in the art and therefore need not be explained here.
  • an embodiment with a U-profile and two coil springs is shown, in whose turns, the reed teeth 5 are inserted.
  • the upper end of the reed teeth 5 is left free, so that upwardly open Rietlücken 8 are formed.
  • Rietlücken 8 warp threads 1 are fed. Some of them are in the upper compartment, ie at the upper end of the reed teeth 5, while others are in the lower compartment near the Rietbund 6.
  • the insertion bevels 7 of the reed teeth of the second group in the longitudinal direction in opposite directions show, if this makes sense for the weave pattern in question and the nature of the effect threads.
  • the insertion bevels 7 are formed in a particularly favorable embodiment as extensions of the reed teeth 5, which are angled in the production of the reed 4 in the longitudinal direction by a predetermined angle.
  • a jerky transition it is also possible to provide a rounded or differently shaped transition between the reed tooth 5 and the insertion bevel 7.
  • FIG. 2 shows a view of the embodiment of the reed according to the invention 4 according to FIG. 1 on a weaving machine with a viewing direction in the longitudinal direction of the reed 4 or in the weft direction 12 of the weaving machine.
  • one or more effect threads 2 are guided by one or more guide means 10 arranged next to one another in the weft direction 12, which in the present example have the form of a needle with an eyelet at the lower end.
  • the respective guide means 10 with the effect thread 2 before the weft insertion into the lower compartment brought so that the effect thread 2 comes to lie during the weft insertion parallel to the lower group of warp threads 1 and thus is crossed by the weft thread 3.
  • the immersion is facilitated, at least one of the two adjacent reed teeth 5 at its upper end to the insertion 7.
  • the insertion bevel 7 is formed as a tongue-like on a tip to running extension of the reed tooth 5.
  • additional contours can also be present on the insertion bevel 7, which point in the warp direction, that is to say that these contours can be angled or bent in the warp direction relative to the vertical longitudinal extension of the reed teeth 5.
  • Such contours pointing in the warp direction are, of course, also conceivable on the second group of reed teeth 5, which do not have an insertion bevel 7 pointing in the longitudinal direction of the reed 4.
  • the change of the warp threads 1 is made in the present example by vertically moving shedding elements 9. This can be, for example heddles with healds or Jaquard healds, which are each driven pattern-dependent by a known, not shown shedding machine.
  • the effect thread 2 can be raised with the guide means 10 until it emerges from the Rietlücke 8 above the warp threads 1 and the guide means 10 is moved in the weft direction 12 of the weaving machine by a predetermined amount before the effect thread 2 is immersed in another Rietlücke 8 to form another bond point with a weft yarn 3 to be subsequently inserted.
  • FIG. 3 shows a loom with inventive reed in a plan view. It's just a partial view with a single effect thread. It is also in FIG. 3 a further section of the loom with viewing direction in the weft direction shown, the further details for the execution of the guide means 10 with the associated displacement device 11 contains.
  • the weft insertion takes place in the weft direction 12 by a gripper by means of a gripper bar or a rapier band in the present example.
  • the weaving reed 4 according to the invention can also be used on an air-jet weaving machine in which a channel-like recess is provided between the upper and lower ends of the reed teeth 5 in a known manner, forming a weft insertion channel for weft thread 3 to be introduced with air jet.
  • the insertion bevel 7 On the formation of the insertion bevel 7 according to the invention, this has no effect.
  • the warp threads 1 are guided in groups of two shed elements 9.
  • the guide means 10 is arranged for the effect thread 2 at the front of an additional compartment picture element 9. There it is guided by a displacement device 11, for example a sectional steel on a prismatic guide.
  • a displacement device 11 for example a sectional steel on a prismatic guide.
  • a plurality of guide means 10, which are moved in parallel in the weft direction 12 can also be arranged on the displacement device 11.
  • the drive of the displacement device via a displacement drive 14 which is connected to a control device 15 of the loom.
  • a displacement A and the vertical movements of the compartment picture elements 9 and the associated guide means 10 by means of a binding cartridge and a derived therefrom programming of the control device 15 are given pattern dependent.
  • other types of reeds 4 with upwardly open Rietlücken 8 can be used on such a weaving machine.
  • the processing of coarse effect threads 2 is significantly improved by the use of a reed 4 with the insertion bevels 7 according to the invention, which point in the longitudinal direction of the ree

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Knitting Machines (AREA)
  • Woven Fabrics (AREA)

Description

Die vorliegende Erfindung betrifft ein Webblatt und eine Webmaschine zur Webmusterbildung bei Geweben mit Zusatzmustereffekten.The present invention relates to a reed and a weaving machine for weaving pattern in fabrics with additional pattern effects.

Bei Webmaschinen ist es im Stand der Technik bekannt, zusätzliche Fäden, die im Wesentlichen in Kettrichtung verlaufen, derartig an der Gewebebindung zu beteiligen, dass bestimmte Zusatzmustereffekte erzielt werden. Zu diesem Zweck werden diese Effektfäden vor dem Eintrag eines Schussfadens für jeden Bewegungszyklus der Webmaschine in Schussrichtung in eine vorgegebene Position gebracht.In weaving machines, it is known in the prior art to include additional threads, which run essentially in the warp direction, in such a way to the weave that certain additional pattern effects are achieved. For this purpose, these effect threads are placed in the weft direction in a predetermined position prior to the entry of a weft thread for each cycle of movement of the loom.

Eine Webmaschine, mit der derartige Zusatzmustereffekte erzeugt werden, enthält mindestens ein Führungsmittel für einen oder mehrere Effektfaden, das mit einer Verschiebeeinrichtung verbunden ist. Dadurch sind die Effektfaden zusammen mit dem Führungsmittels in Schussrichtung um einen von einem Webmuster vorgegebenen Verschiebeweg verschiebbar. An der derartigen Webmaschine sind weiterhin Einrichtungen zur webmusterabhängigen vertikalen Bewegung der Führungsmittel vorhanden sowie eine Webblatteinrichtung zum Anschlagen des Schussfadens an einen Geweberand mittels einer Anschlagbewegung. Eine derartige Einrichtung zeigt zum Beispiel die EP 0 957 191 B1 .
Man spricht bei Gewebe dieser Art auch von Zusatzschusseffekten, da der Zusatzmustereffekt in erster Linie darin besteht, dass die im Wesentlichen in Kettrichtung verlaufenden Effektfäden gegenüber den Grundkettfäden in Schussrichtung verschoben und abgebunden werden.A weaving machine with which such additional pattern effects are produced includes at least one guide means for one or more effect yarns connected to a displacement device. As a result, the effect yarns are displaceable together with the guide means in the weft direction about a displacement path predetermined by a weave pattern. At the weaving machine such devices are further provided for web-pattern dependent vertical movement of the guide means and a Webblatteinrichtung for striking the weft thread to a fabric edge by means of a stop movement. Such a device shows, for example, the EP 0 957 191 B1 ,
Tissue of this type is also referred to as additional weft effects, since the additional pattern effect is primarily that the effect threads extending essentially in the warp direction are shifted and set in the weft direction relative to the base warp threads.

Im Stand der Technik sind auch Webblätter mit Webblattzähnen bekannt, die einseitig nach oben offene Rietlücken derartig bilden, dass Effektfäden, die im Wesentlichen in Kettrichtung verlaufen, bei einer vertikalen Bewegung in diese Rietlücken ein- und wieder austauchen können. Ein derartiges Webblatt zeigt zum Beispiel die EP 263 392 B1 .
Bei dieser Vorrichtung tauchen allerdings bei der Anschlagbewegung des Webblattes alle in Kettrichtung verlaufenden Fäden, also Grundkettfäden und Effektfäden, aus den Rietlücken aus- und wieder in diese ein.In the prior art, reeds with reed teeth are known, which form unilaterally open up Rietlücken such that effect threads that extend substantially in the warp direction, with a vertical movement in these Rietlücken on and can dive again. Such a reed shows, for example, the EP 263 392 B1 ,
In this device, however, in the stop movement of the reed, all threads running in the warp direction, ie base warp threads and effect threads, emerge from the reed gaps and reenter them.

Beim Eintauchen eines Effektfadens in eine offene Rietlücke kann es vor allem bei gröberen Garnen zu Problemen kommen, da der Effektfaden an einem der Webblattzähne hängen bleiben kann, die diese Rietlücke begrenzen.When immersing an effect thread into an open reed gap, problems can arise, especially with coarser yarns, since the effect thread can get caught on one of the reed teeth, which delimit this reed gap.

Die US 4 429 722 A offenbart ein Webblatt, bei dem zwischen jeweils zwei Gruppen von mehreren, an beiden Enden miteinander verbundenen Webblattzähnen eine nach oben offene Rietlücke gebildet wird. Die Webblattzähne einer jeden dieser Gruppen sind an ihrem oberen Ende durch ein abgeschrägtes Verbindungsstück miteinander verbunden. Das Verbindungsstück bildet zur Rietlücke hin eine Kante, an der ein in der Rietlücke aufwärts bewegter Faden hängen bleiben kann.The US 4 429 722 A discloses a reed in which an upwardly open Rietlücke is formed between each two groups of several, at both ends connected reed teeth. The reed teeth of each of these groups are connected at their upper end by a bevelled connector. The connector forms the Rietlücke towards an edge on which a hanging in the Rietlücke upward thread can get stuck.

Aufgabe der vorliegenden Erfindung ist es, ein Webblatt für eine Webmaschine zu schaffen, bei der bei der Bildung von Zusatzmustereffekten das Eintauchen von Effektfäden in die nach oben offenen Rietlücken eines Webblatts störungsfrei verläuft.Object of the present invention is to provide a reed for a loom, in which the formation of additional pattern effects, the immersion of effect threads runs smoothly in the upwardly open Rietlücken a reed.

Im Rahmen der vorliegenden Anmeldung ist dabei an solche Webmuster gedacht, bei denen eine Schar von Kettfäden für ein Grundmuster ständig in Rietlücken eingetaucht bleibt, auch wenn diese Kettfäden zur Fachbildung senkrecht zur Schussrichtung bewegt werden und auch während der Anschlagbewegung des Webblattes Die Aufgabe wird durch ein Webblatt gemäß dem unabhängigen Anspruch gelöst.In the context of the present application is intended to such weave patterns in which a bevy of warp threads for a basic pattern is constantly immersed in Rietlücken, even if these warp threads are moved to shedding perpendicular to the weft direction and also during the stop movement of the reed Reed dissolved according to the independent claim.

Das Webblatt weist Webblattzähne auf, die durch Zusammenfassung ihrer unteren Enden in einem Rietbund in einer Längsrichtung des Webblattes derartig aneinandergereiht sind, dass die oberen Enden der Webblattzähne einseitig nach oben offene Rietlücken bilden. Das Webblatt ist erfindungsgemäß dadurch gekennzeichnet, dass mehrere Gruppen von Webblattzähnen vorhanden sind, wobei jeder Webblattzahn einer ersten Gruppe von Webblattzähnen eine in Längsrichtung des Webblattes weisende Einführschräge an seinem oberen Ende aufweist. Diese Einführschräge ist derartig gestaltet, dass sie die nach oben weisende Öffnung einer benachbarten Rietlücke zu mindestens teilweise abdeckt. Weiterhin ist eine zweite Gruppe von Webblattzähnen vorhanden, die keine derartigen Einführschrägen aufweisen.The reed has reed teeth that are lined up by combining their lower ends in a reed collar in a longitudinal direction of the reed such that the upper ends of the reed teeth form unilaterally open-top reed gaps. The reed is according to the invention characterized in that there are several groups of reed teeth, each reed tooth of a first group of Reed teeth has a pointing in the longitudinal direction of the reed insertion at its upper end. This insertion bevel is designed such that it covers the upwardly facing opening of an adjacent Rietlücke at least partially. Furthermore, a second group of reed teeth is present, which have no such insertion bevels.

Durch die erfindungsgemäße Einführschräge wird das Eintauchen von Effektfäden in die gewünschte Rietlücke sichergestellt, während ein unbeabsichtigtes Eintauchen in eine benachbarte Rietlücke verhindert wird.Through the insertion bevel according to the invention, the immersion of effect threads is ensured in the desired Rietlücke, while unintentional immersion in an adjacent Rietlücke is prevented.

In einer vorteilhaften Ausführungsform ist die in Längsrichtung des Webblattes weisende Einführschräge der Webblattzähne der ersten Gruppe derartig gestaltet, dass die nach oben weisende Öffnung einer oder mehrerer benachbarter offener Rietlücken und das obere Ende eines oder mehrerer benachbarter Webblattzähne, die zur ersten Gruppe gehören, von der Einführschräge zu mindestens teilweise abgedeckt werden. Dadurch wird auch verhindert, dass die Effektfäden an den oberen Enden der benachbarten Webblattzähne hängen bleiben.In an advantageous embodiment, the insertion bevel of the reed teeth of the first group pointing in the longitudinal direction of the reed is configured such that the upward-facing opening of one or more adjacent open reed gaps and the upper end of one or more adjacent reed teeth belonging to the first group belong to the first group Insertion be covered at least partially. This also prevents the effect threads from getting caught on the upper ends of the adjacent reed teeth.

In einer besonders vorteilhaften Ausführungsform ist die Einführschräge der ersten Gruppe von Webblattzähnen als ein spitz zulaufender zungenartiger Fortsatz eines Webblattzahnes ausgebildet ist, der in Längsrichtung des Webblattes gegenüber dem übrigen Webblattzahn abgewinkelt ist. Diese Form ist leicht herstellbar und gewährleistet die gewünschte Funktion.In a particularly advantageous embodiment, the insertion bevel of the first group of reed teeth is formed as a tapered tongue-like extension of a reed tooth, which is angled in the longitudinal direction of the reed relative to the remaining reed tooth. This shape is easy to manufacture and ensures the desired function.

Bei der Verwendung von Effektfäden, die deutlich gröber sind als die Kettfäden für das Grundmuster ist es vorteilhaft, dass die Rietlücken, die von einem Webblattzahn mit Einführschräge begrenzt werden und die nicht von einer Einführschräge abgedeckt sind, in Längsrichtung des Webblattes eine größere Breite aufweisen als die Rietlücken, die von einer Einführschräge abgedeckt sind. Somit ist ein Eintauchen der gröberen Effektfäden in die hierfür vorgesehenen Rietlücken erleichtert, ohne dass der Einzug von Grundkettfäden in das Webblatt zu stark beeinträchtigt wird.When using effect threads that are significantly coarser than the warp threads for the basic pattern, it is advantageous that the Rietlücken that are limited by a reed tooth with insertion and are not covered by an insertion, in the longitudinal direction of the reed have a greater width than the Rietlücken, which are covered by an insertion bevel. Thus, immersion of the coarser effect threads in the space provided Rietlücken is facilitated without the introduction of base warp threads is impaired too much in the reed.

Aus dem gleichen Grund kann es vorteilhaft sein, die Webblattzähne mit Einführschräge in Längsrichtung des Webblattes mit einer größeren Dicke zu versehen als die Webblattzähne ohne Einführschräge.For the same reason, it may be advantageous to provide the reed teeth with insertion bevel in the longitudinal direction of the reed with a greater thickness than the reed teeth without insertion bevel.

Um bei der Musterung des Gewebes mit Zusatzmustereffekt größere Freiheit zu bekommen, ist es sinnvoll, dass zwischen jeweils zwei Webblattzähnen mit einer Einführschräge einer oder mehrere Webblattzähne ohne Einführschräge vorgesehen sind. Wobei es besonders vorteilhaft ist, wenn die Gruppen von Webblattzähnen mit und ohne Einführschräge derartig in Längsrichtung des Webblattes aneinander gereiht sind, dass ein Musterrapport aus den verschiedenen Webblattzähnen und den zugehörigen Rietlücken entsteht, der sich über die Breite des Webblattes wiederholt. Dadurch können regelmäßige Muster erzeugt werden, bei denen auch Bereiche mit und ohne Zusatzmustereffekt abwechseln können.In order to get greater freedom in the patterning of the fabric with additional pattern effect, it makes sense that between two reed teeth with an insertion bevel one or more reed teeth are provided without insertion bevel. It is particularly advantageous if the groups of reed teeth with and without insertion be strung together in the longitudinal direction of the reed such that a pattern repeat of the different reed teeth and the associated Rietlücken arises, which repeats over the width of the reed. As a result, regular patterns can be created in which areas with and without additional pattern effect can alternate.

Eine erfindungsgemäße Webmaschine ist mit Fachbildeelementen ausgerüstet, durch deren vertikale Bewegung ein von Kettfäden begrenztes Webfach gebildet wird. Weiterhin sind Einrichtungen zum Eintrag eines Schussfadens in das Webfach in einer Schussrichtung vorhanden, sowie eine Webblatteinrichtung zum Anschlagen des Schussfadens an einen Geweberand mittels einer Anschlagbewegung, die zwei Endpositionen aufweist. Zur Bildung des Zusatzmustereffektes sind Führungsmittel für Effektfäden vorgesehen, sowie eine Einrichtung zum Verschieben der Führungsmittel in der Schussrichtung sowie eine Einrichtung zur vertikalen Bewegung der Führungsmittel. Erfindungsgemäß ist ein Webblatt mit zwei Gruppen von Webblattzähnen in der zuvor beschriebenen Art vorgesehen. Dieses Webblatt ist derartig an der Webblatteinrichtung angebracht, dass die Kettfäden in Rietlücken einziehbar sind und dass die Effektfaden in diejenigen nach oben offenen Rietlücken ein- und austauchen können, die nicht von Einführschrägen an Webblattzähnen abgedeckt sind.A weaving machine according to the invention is equipped with shedding elements, the vertical movement of which forms a weaving shed bounded by warp threads. Furthermore, means for inserting a weft thread into the shed in a weft direction are provided, as well as a Webblatteinrichtung for striking the weft thread to a fabric edge by means of a stop movement having two end positions. To form the additional pattern effect guide means are provided for effect threads, as well as means for moving the guide means in the weft direction and means for vertical movement of the guide means. According to the invention, a reed with two groups of reed teeth is provided in the manner described above. This reed is attached to the Webblatteinrichtung so that the warp threads are retractable in Rietlücken and that the effect thread can enter and dive into those upwardly open Rietlücken that are not covered by Einführschrägen on reed teeth.

In einer besonders vorteilhaften Ausführungsform der erfindungsgemäßen Webmaschine sind die Führungsmittel in einer Ebene bewegbar, die zwischen den Fachbildeelementen und der Endposition der Anschlagbewegung, die näher an den Fachbildeelementen liegt, angeordnet ist.
Bei der Verwendung von üblichen Webschäften als Fachbildeelemente liegen die Führungsmittel somit zwischen Webblatt und Webschäften. Die Führungsmittel können dabei zum Beispiel als Nadeln ausgebildet sein, die an der Vorderseite eines zusätzlichen Webschaftes in Schussrichtung gemeinsam in einer Verschiebeeinrichtung verschieblich angeordnet sind, wobei die vertikale Bewegung dieser Führungsmittel von der vertikalen Bewegung des zusätzlichen Webschaftes abgeleitet wird. Bei dieser Ausführung ist es selbstverständlich denkbar, mehrere Gruppen von Führungsmitteln an jeweils einer Verschiebeeinrichtung gemeinsam oder einander entgegen gesetzt zu bewegen. Dies wird zum Beispiel durch die Verwendung von separaten Verschiebeantrieben für jede dieser Gruppen ermöglicht. Es können auch mehrere Gruppen von Führungsmitteln an unterschiedlichen Webschäften angebracht werden.In a particularly advantageous embodiment of the loom according to the invention, the guide means are movable in a plane which is arranged between the shedding elements and the end position of the stop movement, which is closer to the shed forming elements.
When using standard heddles as shedding elements, the guide means are thus between the reed and Webschäften. The guide means may be formed, for example, as needles, which are arranged on the front of an additional weaving sheave in the weft direction together displaceable in a displacement device, wherein the vertical movement of said guide means is derived from the vertical movement of the additional weaving shank. In this embodiment, it is of course conceivable to move several groups of guide means on each of a displacement device together or opposite to each other. This is for example through the use of separate Displacement drives for each of these groups possible. It is also possible to attach several groups of guide means to different heald frames.

Im Folgenden werden vorteilhafte Ausführungsformen der Erfindung mit Hilfe der Figuren im Detail erläutert.

Figur 1
Ausführungsform eines erfindungsgemäßen Webblatts für eine Webmaschine mit Einführschrägen in einer Ansicht in Kettrichtung
Figur 2
Ausführung nach Figur 1 an einer Webmaschine in einer Ansicht in Schussrichtung
Figur 3
Webmaschine mit erfindungsgemäßem Webblatt in einer Draufsicht
In the following, advantageous embodiments of the invention will be explained in detail with the aid of the figures.
FIG. 1
Embodiment of a reed according to the invention for a weaving machine with insertion bevels in a view in the warp direction
FIG. 2
Execution after FIG. 1 on a weaving machine in a view in the weft direction
FIG. 3
Weaving machine with reed according to the invention in a plan view

Figur 1 zeigt ein Webblatt 4 mit Rietzähnen 5, die an ihrem unteren Ende in einem Rietbund 6 zusammen gefasst sind. Die Art und Weise, wie so ein Rietbund 6 gestaltet wird, ist dem Fachmann bekannt und braucht daher hier nicht näher ausgeführt zu werden. Im Ausführungsbeispiel ist eine Ausführung mit einem U-Profil und zwei Spiralfedern gezeigt, in deren Windungen, die Webblattzähne 5 eingelegt sind. Das obere Ende der Webblattzähne 5 ist frei gelassen, so dass nach oben offene Rietlücken 8 gebildet werden. In diese Rietlücken 8 sind Kettfäden 1 eingezogen. Einige davon befinden sich im Oberfach, dass heißt am oberen Ende der Webblattzähne 5, während andere im Unterfach in der Nähe des Rietbundes 6 liegen. Im vorliegenden Beispiel sind diese jeweils in der gleichen Rietlücke 8 eingezogen. Außerdem sind Effektfäden 2 dargestellt, die sich in Figur 1 oberhalb der Kettfäden 1 und oberhalb der oberen Enden der Webblattzähne 5 befinden. Damit ein Eintauchen der Effektfäden 2 in die jeweiligen Rietlücken 8 erleichtert wird, sind erfindungsgemäß Einführschrägen 7 an den oberen Enden bestimmter Webblattzähne 5 vorgesehen. Diese Einführschrägen 7 weisen in die Längsrichtung des Webblattes 4, wobei diese Längsrichtung beim Einbau in die Webmaschine mit deren Schussrichtung 12 zusammenfällt. Durch diese Formgebung von Webblattzähnen 5 wird zumindestens die Öffnung einer benachbarten Rietlücke 8 mehr oder weniger abgedeckt. Im Ausführungsbeispiel der Figur 1 werden sogar mehrere Öffnungen von Rietlücken 8 und die oberen Enden der benachbarten Webblattzähne 5 ohne Einführschräge 7 abgedeckt.
Es sind zwei Gruppen von Webblattzähnen 5 zu erkennen, von denen die eine erfindungsgemäße Einführschrägen 7 aufweisen, während die anderen ohne Einführschrägen 7, die in Längsrichtung des Webblattes weisen, gestaltet sind.
In Figur 1 ist auch zu erkennen, dass die Rietlücken 8, in die ein Effektfaden 2 beim Eintauchen geleitet wird, in Längsrichtung des Webblattes 4 breitere Öffnungen haben als die Rietlücken 8, in denen lediglich Kettfäden 1 eingezogen sind. Dies liegt einer weiteren Ausführungsform zu Grunde, die für die Verarbeitung unterschiedlicher Dicken von Effektfäden 2 und Kettfäden 1 besonders geeignet ist.
Die Richtung, in der die Einführschrägen 7 weisen, ist erfindungsgemäß die Längsrichtung des Webblattes 4. Das bedeutet, dass ein von oben an die Einführschräge 7 angenäherter Effektfaden 2 in Längsrichtung des Webblattes 4 zur Öffnung der angrenzenden Rietlücke 8 geleitet wird.
Anders als in Figur 1 dargestellt, ist auch denkbar, dass die Einführschrägen 7 der Webblattzähne der zweiten Gruppe in Längsrichtung in einander entgegen gesetzten Richtungen zeigen, falls dies für das betreffende Webmuster und die Art der Effektfäden 2 sinnvoll ist.
Die Einführschrägen 7 werden in einer besonders günstigen Ausführungsform als Fortsätze der Webblattzähne 5 ausgebildet, die bei der Herstellung des Webblattes 4 in Längsrichtung um einen vorgebbaren Winkel abgewinkelt werden. Statt eines ruckartigen Übergangs kann natürlich prinzipiell auch ein gerundeter oder andersartig gestalteter Übergang zwischen Webblattzahn 5 und Einführschräge 7 vorgesehen werden. FIG. 1 shows a reed 4 with Rietzähnen 5, which are summarized at its lower end in a Rietbund 6. The manner in which such a reed collar 6 is designed is known to the person skilled in the art and therefore need not be explained here. In the embodiment, an embodiment with a U-profile and two coil springs is shown, in whose turns, the reed teeth 5 are inserted. The upper end of the reed teeth 5 is left free, so that upwardly open Rietlücken 8 are formed. In these Rietlücken 8 warp threads 1 are fed. Some of them are in the upper compartment, ie at the upper end of the reed teeth 5, while others are in the lower compartment near the Rietbund 6. In the present example, these are each drawn in the same Rietlücke 8. In addition, effect threads 2 are shown which are in FIG. 1 above the warp threads 1 and above the upper ends of the reed teeth 5 are located. So that immersion of the effect threads 2 in the respective Rietlücken 8 is facilitated, according to the invention insertion bevels 7 are provided at the upper ends of certain reed teeth 5. These chamfers 7 point in the longitudinal direction of the reed 4, wherein this longitudinal direction coincides when installed in the loom with the weft direction 12. By this shaping of reed teeth 5, at least the opening of an adjacent Rietlücke 8 more or less covered. in the Embodiment of FIG. 1 even several openings of Rietlücken 8 and the upper ends of the adjacent reed teeth 5 are covered without insertion bevel 7.
There are two groups of reed teeth 5 to recognize, of which have an inventive insertion bevels 7, while the others without insertion bevels 7, which point in the longitudinal direction of the reed, are designed.
In FIG. 1 It can also be seen that the Rietlücken 8, in which an effect thread 2 is passed during immersion, in the longitudinal direction of the reed 4 have wider openings than the Rietlücken 8, in which only warp threads 1 are retracted. This is based on a further embodiment, which is particularly suitable for processing different thicknesses of effect threads 2 and warp threads 1.
The direction in which the chamfers 7 are, according to the invention, the longitudinal direction of the reed 4. This means that an approximated from above the insertion bevel 7 effect thread 2 in the longitudinal direction of the reed 4 to the opening of the adjacent Rietlücke 8 is passed.
Unlike in FIG. 1 illustrated, it is also conceivable that the insertion bevels 7 of the reed teeth of the second group in the longitudinal direction in opposite directions show, if this makes sense for the weave pattern in question and the nature of the effect threads.
The insertion bevels 7 are formed in a particularly favorable embodiment as extensions of the reed teeth 5, which are angled in the production of the reed 4 in the longitudinal direction by a predetermined angle. Of course, instead of a jerky transition, it is also possible to provide a rounded or differently shaped transition between the reed tooth 5 and the insertion bevel 7.

Figur 2 zeigt eine Ansicht der Ausführungsform des erfindungsgemäßen Webblattes 4 gemäß Figur 1 an einer Webmaschine mit Blickrichtung in Längsrichtung des Webblattes 4 bzw. in Schussrichtung 12 der Webmaschine.
Hier ist zu sehen, dass ein oder mehrere Effektfäden 2 von einem oder mehreren in Schussrichtung 12 nebeneinander angeordneten Führungsmitteln 10 geführt werden, die im vorliegenden Beispiel die Form einer Nadel mit einer Öse am unteren Ende aufweisen. Zum Bilden eines Bindungspunktes mit dem Schussfaden 3 wird das jeweilige Führungsmittel 10 mit dem Effektfaden 2 vor dem Schusseintrag ins Unterfach gebracht, so dass der Effektfaden 2 während des Schusseintrags parallel zu der unteren Schar von Kettfäden 1 zu liegen kommt und somit vom Schussfaden 3 überkreuzt wird. Dazu taucht der Effektfaden 2 in eine Rietlücke 8 ein, die von einander benachbarten Webblattzähnen 5 gebildet wird. Damit das Eintauchen erleichtert wird, weist mindestens einer der beiden benachbarten Webblattzähne 5 an seinem oberen Ende die Einführschräge 7 auf. Im vorliegenden Beispiel ist aus Figur 2 erkennbar, dass die Einführschräge 7 als zungenartiger auf eine Spitze zu laufender Fortsatz des Webblattzahnes 5 ausgebildet ist. Es können demnach an der Einführschräge 7 auch zusätzliche Konturen vorhanden sein, die in Kettrichtung weisen, dass heißt, dass diese Konturen gegenüber der vertikalen Längserstreckung der Webblattzähne 5 in Kettrichtung abgewinkelt oder abgebogen sein können. Derartig in Kettrichtung weisende Konturen sind natürlich auch an der zweiten Gruppe von Webblattzähnen 5 denkbar, die keine in Längsrichtung des Webblattes 4 weisende Einführschräge 7 aufweisen. FIG. 2 shows a view of the embodiment of the reed according to the invention 4 according to FIG. 1 on a weaving machine with a viewing direction in the longitudinal direction of the reed 4 or in the weft direction 12 of the weaving machine.
Here it can be seen that one or more effect threads 2 are guided by one or more guide means 10 arranged next to one another in the weft direction 12, which in the present example have the form of a needle with an eyelet at the lower end. To form a binding point with the weft thread 3, the respective guide means 10 with the effect thread 2 before the weft insertion into the lower compartment brought so that the effect thread 2 comes to lie during the weft insertion parallel to the lower group of warp threads 1 and thus is crossed by the weft thread 3. For this purpose, the effect thread 2 immersed in a Rietlücke 8, which is formed by mutually adjacent reed teeth 5. Thus, the immersion is facilitated, at least one of the two adjacent reed teeth 5 at its upper end to the insertion 7. In the present example is off FIG. 2 recognizable that the insertion bevel 7 is formed as a tongue-like on a tip to running extension of the reed tooth 5. Accordingly, additional contours can also be present on the insertion bevel 7, which point in the warp direction, that is to say that these contours can be angled or bent in the warp direction relative to the vertical longitudinal extension of the reed teeth 5. Such contours pointing in the warp direction are, of course, also conceivable on the second group of reed teeth 5, which do not have an insertion bevel 7 pointing in the longitudinal direction of the reed 4.

Nach dem Eintrag des Schussfadens 3 in das Webfach wird dieser durch eine Anschlagbewegung des Webblattes 4 an den Geweberand 13 angeschlagen. Während dessen kann auch ein Wechsel der Kettfäden 1 vom Ober- ins Unterfach erfolgen, je nachdem, was vom Webmuster des beabsichtigten Gewebes vorgegeben ist. Der Wechsel der Kettfäden 1 wird im vorliegenden Beispiel von vertikal bewegten Fachbildeelementen 9 vorgenommen. Dies können zum Beispiel Webschäfte mit Weblitzen oder auch Jaquard-Weblitzen sein, die jeweils von einer an sich bekannten, nicht dargestellten Fachbildemaschine musterabhängig angetrieben werden.
Nun kann auch der Effektfaden 2 mit dem Führungsmittel 10 angehoben werden, bis er aus der Rietlücke 8 oberhalb der Kettfäden 1 austaucht und das Führungsmittel 10 wird in Schussrichtung 12 der Webmaschine um einen vorgegeben Betrag verschoben, bevor der Effektfaden 2 in eine andere Rietlücke 8 eintaucht, um einen weiteren Bindungspunkt mit einem anschließend einzutragenden Schussfaden 3 zu bilden.After the entry of the weft thread 3 in the shed this is struck by a stop movement of the reed 4 to the fabric edge 13. During this, a change of the warp threads 1 from the top to the bottom can also take place, depending on what is specified by the weave pattern of the intended fabric. The change of the warp threads 1 is made in the present example by vertically moving shedding elements 9. This can be, for example heddles with healds or Jaquard healds, which are each driven pattern-dependent by a known, not shown shedding machine.
Now also the effect thread 2 can be raised with the guide means 10 until it emerges from the Rietlücke 8 above the warp threads 1 and the guide means 10 is moved in the weft direction 12 of the weaving machine by a predetermined amount before the effect thread 2 is immersed in another Rietlücke 8 to form another bond point with a weft yarn 3 to be subsequently inserted.

Figur 3 zeigt eine Webmaschine mit erfindungsgemäßem Webblatt in einer Draufsicht. Es ist nur eine Teilansicht mit einem einzigen Effektfaden dargestellt.
Außerdem ist in Figur 3 ein weiterer Ausschnitt der Webmaschine mit Blickrichtung in Schussrichtung dargestellt, der weitere Details zur Ausführung der Führungsmittel 10 mit der zugehörigen Verschiebeeinrichtung 11 enthält. FIG. 3 shows a loom with inventive reed in a plan view. It's just a partial view with a single effect thread.
It is also in FIG. 3 a further section of the loom with viewing direction in the weft direction shown, the further details for the execution of the guide means 10 with the associated displacement device 11 contains.

In Figur 3 ist zu erkennen, dass der Schusseintrag im vorliegenden Beispiel durch einen Greifer mittels einer Greiferstange oder einem Greiferband in der Schussrichtung 12 erfolgt. Selbstverständlich ist das erfindungsgemäße Webblatt 4 auch an einer Luftwebmaschine einsetzbar, bei der zwischen oberen und unterem Ende der Webblattzähne 5 in bekannter Art und Weise eine kanalartige Ausbuchtung vorgesehen ist, die einen Schusseintragskanal für mit Luftstrahl einzutragende Schussfaden 3 bildet. Auf die Ausbildung der erfindungsgemäßen Einführschräge 7 hat dies keinen Einfluss.
In Figur 3 ist ebenfalls zu erkennen, dass die Kettfäden 1 in Gruppen von zwei Fachbildeelementen 9 geführt werden. Weiterhin ist erkennbar, dass das Führungsmittel 10 für den Effektfaden 2 an der Vorderseite eines zusätzlichen Fachbildelementes 9 angeordnet ist. Dort wird es von einer Verschiebeeinrichtung 11 - z.B. ein Profilstahl an einer Prismenführung - geführt. An der Verschiebeeinrichtung 11 können selbstverständlich auch mehrere Führungsmittel 10 angeordnet sein, die parallel in Schussrichtung 12 bewegt werden. Der Antrieb der Verschiebeinrichtung erfolgt über einen Verschiebeantrieb 14, der mit einer Steuereinrichtung 15 der Webmaschine verbunden ist. Damit kann ein Verschiebeweg A und die vertikalen Bewegungen der Fachbildelemente 9 sowie der damit verbundenen Führungsmittel 10 mittels einer Bindungspatrone und über eine davon abgeleitete Programmierung der Steuereinrichtung 15 musterabhängig vorgegeben werden. An einer derartigen Webmaschine sind natürlich auch andere Arten von Webblättern 4 mit nach oben offenen Rietlücken 8 einsetzbar. Die Verarbeitung von groben Effektfäden 2 wird jedoch durch den Einsatz eines Webblattes 4 mit den erfindungsgemäßen Einführschrägen 7, die in Längsrichtung des Webblattes 4 weisen, deutlich verbessert.In FIG. 3 It can be seen that the weft insertion takes place in the weft direction 12 by a gripper by means of a gripper bar or a rapier band in the present example. Of course, the weaving reed 4 according to the invention can also be used on an air-jet weaving machine in which a channel-like recess is provided between the upper and lower ends of the reed teeth 5 in a known manner, forming a weft insertion channel for weft thread 3 to be introduced with air jet. On the formation of the insertion bevel 7 according to the invention, this has no effect.
In FIG. 3 It can also be seen that the warp threads 1 are guided in groups of two shed elements 9. Furthermore, it can be seen that the guide means 10 is arranged for the effect thread 2 at the front of an additional compartment picture element 9. There it is guided by a displacement device 11, for example a sectional steel on a prismatic guide. Of course, a plurality of guide means 10, which are moved in parallel in the weft direction 12, can also be arranged on the displacement device 11. The drive of the displacement device via a displacement drive 14 which is connected to a control device 15 of the loom. Thus, a displacement A and the vertical movements of the compartment picture elements 9 and the associated guide means 10 by means of a binding cartridge and a derived therefrom programming of the control device 15 are given pattern dependent. Of course, other types of reeds 4 with upwardly open Rietlücken 8 can be used on such a weaving machine. However, the processing of coarse effect threads 2 is significantly improved by the use of a reed 4 with the insertion bevels 7 according to the invention, which point in the longitudinal direction of the reed 4.

Bezugszeichenreference numeral

11
Kettfädenwarp
22
Effektfadeneffect thread
33
Schussfadenweft
44
Webblattreed
55
WeblattzahnWeblattzahn
66
RietbundRiet Bund
77
Einführschrägechamfer
88th
Rietlückereed gap
99
FachbildeelementShedding element
1010
Führungsmittelguide means
1111
Verschiebeeinrichtungshifter
1212
Schussrichtungweft direction
1313
Geweberandfabric edge
1414
Verschiebeantriebdisplacement drive
1515
Steuereinrichtungcontrol device

Claims (9)

  1. A reed (4) for a weaving machine with reed teeth (5), which are aligned next to each other by aggregation of their lower ends in a reed collar (6) in a longitudinal direction of the reed (4) in such a way that the upper ends of the reed teeth (5) form comb gaps (8) open upwards on one side, characterized in that there are several groups of reed teeth (5), wherein each reed tooth (5) of a first group has an insertion bevel (7) pointing in the longitudinal direction of the reed (4) on its upper end, which is designed in such a way that it at least partially covers the opening pointing upwards of an adjacent reed gap (8) and that there is a second group of reed teeth (5), which have no such insertion bevels (7).
  2. A reed (4) according to claim 1 characterized in that the upwardly pointing opening of one or several open comb gaps (8) and the upper end of one or several reed teeth (5), which belong to the second group are at least partially covered by the insertion bevel (7) pointing in the longitudinal direction of the reed (4) of an adjacent reed tooth (5), which belongs to the first group.
  3. A reed (4) according to one of the preceding claims characterized in that the insertion bevel (7) of the first group of reed teeth (5) is designed as a tapered tongue-like extension of the reed tooth (5), which is angled in the longitudinal direction of the reed (4) towards the other reed tooth (5).
  4. A reed (4) according to one of the preceding claims characterized in that the comb gaps (8), which are limited by a reed tooth (5) of the first group and the upwardly pointing opening of which is not covered by an insertion bevel (7), have a greater width in the longitudinal direction of the reed (4) than the comb gaps (8), which are covered by an insertion bevel (7).
  5. A reed (4) according to one of the preceding claims characterized in that the reed teeth (5) of the first group have a greater thickness than the reed teeth (5) of the second group.
  6. A reed (4) according to one of the preceding claims characterized in that one or several reed teeth (5) of the second group are provided between two reed teeth (5) of the first group.
  7. A reed (4) according to one of the preceding claims characterized in that the groups of reed teeth (5) with and without insertion bevel (7) pointing in the longitudinal direction of the reed (4) are aligned next to each other in such a way that a pattern repeat arises from the different reed teeth (5) and the comb gaps (8) lying in between, which is repeated over the width of the reed (4).
  8. A weaving machine with shed forming elements (9), through the vertical movement of which a shed limited by warp threads (1) can be formed, with equipment for the insertion of a weft (3) into the shed in a weft direction (12) and with a reed device for attaching the weft (3) to a woven fabric edge by means of a stop motion, which has two end positions and with guide means (10) for effect threads (2), as well as with a device (11, 15) for the displacement of the guide means (10) in the weft direction (12) as well as with a device (9) for the vertical movement of the guide means (10) characterized in that a reed (4) according to one of the preceding claims is attached to the reed device in such a way that the warp threads (1) are retractable in comb gaps (8) and that the effect threads (2) can immerge and emerge in those upwardly open comb gaps (8), which are not covered by the insertion bevel (7) of the reed teeth (5) pointing in the longitudinal direction of the reed (4).
  9. A weaving machine (7) according to claim 8 characterized in that the guide means (10) can be moved in a plane, which is arranged between the shed forming elements (9) and the end position of the stop motion, which is closer to the shed forming elements (9).
EP11743056.1A 2010-08-20 2011-08-08 Reed and weaving machine for weaving pattern formation in woven fabrics with additional pattern effects Not-in-force EP2606167B1 (en)

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DE102010034969A DE102010034969B3 (en) 2010-08-20 2010-08-20 Weaving and weaving machine for weaving patterns in fabrics with additional pattern effects
PCT/EP2011/063594 WO2012022641A2 (en) 2010-08-20 2011-08-08 Reed and weaving machine for weaving pattern formation in woven fabrics with additional pattern effects

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EP2606167B1 true EP2606167B1 (en) 2015-10-14

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EP2606167A2 (en) 2013-06-26
CN103109007A (en) 2013-05-15
JP2013538300A (en) 2013-10-10
WO2012022641A2 (en) 2012-02-23
US8770235B2 (en) 2014-07-08
JP5727013B2 (en) 2015-06-03
US20130153080A1 (en) 2013-06-20
WO2012022641A3 (en) 2012-12-13
DE102010034969B3 (en) 2011-11-03
CN103109007B (en) 2014-12-17

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