EP2236655A2 - Jacquard loom and Jacquard machine - Google Patents

Jacquard loom and Jacquard machine Download PDF

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Publication number
EP2236655A2
EP2236655A2 EP10001818A EP10001818A EP2236655A2 EP 2236655 A2 EP2236655 A2 EP 2236655A2 EP 10001818 A EP10001818 A EP 10001818A EP 10001818 A EP10001818 A EP 10001818A EP 2236655 A2 EP2236655 A2 EP 2236655A2
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EP
European Patent Office
Prior art keywords
heald
lifting
legs
turning device
jacquard
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Granted
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EP10001818A
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German (de)
French (fr)
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EP2236655A3 (en
EP2236655B1 (en
Inventor
Christoph Dr. Schwemmlein
Kurt Hockemeyer
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Gebrueder Kloecker GmbH
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Gebrueder Kloecker GmbH
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Publication of EP2236655A2 publication Critical patent/EP2236655A2/en
Publication of EP2236655A3 publication Critical patent/EP2236655A3/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/02—Gauze healds

Definitions

  • the invention relates to a leno device for producing a leno weave on a jacquard machine.
  • a jacquard fabric is a collective term for all fabrics with a weave pattern that can only be created by lifting individual warp threads, thus for so-called finely drawn, varied patterns.
  • Such Jacquard fabrics are made on Jacquard machines that also use weft and warp threads to make the fabric.
  • a jacquard machine is characterized in that it provides a harness or chevron board having a plurality of openings through which the harness cords are passed.
  • the harness cords themselves are spring loaded at their lower end.
  • the harness cords themselves are controlled individually by the jacquard apparatus, wherein at this point the control of the harness cords does not need to be explained, since this is state of the art.
  • Jacquard machines can be used to produce a wide variety of patterns.
  • leno devices are used inter alia with respect to the production of fabric edges.
  • Such leno devices comprise two lifting healds and one half heald taken alternately by the lifting healds.
  • the half heald here has two legs, which have at their upper end an eyelet for receiving the stationary thread.
  • On each side of the half heald there is a slot for each of the lifting healds, with the leno haulm guided for the binding between half heald and haulm hike moving from one side of the half heald to the other side of the half heald, depending on which lifting heald the half heald is just taken.
  • Such a leno device is now the subject of the present invention, namely its use on a jacquard machine.
  • care must also be taken to ensure that the spatial extent in the direction of the adjacent leno device is kept relatively low in order to precisely prevent, or essentially avoid, mutual interference, as already explained.
  • care must also be taken to ensure that the weight of the individual leno devices is kept low in order not to let the required drive power become too high.
  • the leno device which satisfies the aforementioned premises is characterized in detail by the features of claim 1.
  • the leno device comprises two lifting heald and a half haul, which is taken with alternate lifting of the lifting healds of the respective lifting heald.
  • Each honeydift has, according to a feature of the invention, a projection directed towards the adjacent heald, projecting over the upper and lower legs of the heald with an opening for the half heald and a saddle as a support for the half heald, wherein at least the half heald under operation Impact of a restoring force is.
  • the fact that the legs of the lifting heald are kept relatively slim, except for the centrally located between the two legs projection, a not insignificant weight reduction achieved. As already stated, such weight reduction is required to minimize drive power.
  • the use of leno devices allows the production of completely novel patterns.
  • the legs of the half heald have a stopper at one end.
  • the stopper prevents the half-heald from coming loose from the lifting healds.
  • the stroke of the lifting healds relative to each other is predetermined by the stopper. This also means that the size of the compartment is thereby predetermined accordingly.
  • the legs of the half heald are connected to one another at the other end to form a thread eye for the ground thread to form a support. Ie. in the area of the thread eye, the legs of the half-lashes form a support which interacts with the saddle of the respective lifting heald; that is, in the moment when the lifting heald takes the half heald, the half heald sits with its support on the saddle of the lifting heald.
  • the legs of the half-healds each have an angled end-to-end, whereby advantageous finger-like extensions adjoining the angling are provided which can be connected to one another.
  • the finger-like extensions are to achieve a restraining force, in particular a spring-like load, in particular a spiral spring.
  • a restraining force in particular a spring-like load, in particular a spiral spring.
  • a coil spring can be applied to the finger-like extension. That is, the extensions can be brought to overlap so far and this record the coil spring. It follows that the coil spring so far serves a dual purpose, namely on the one hand to ensure that the half heald forms a closed unit and on the other hand applies the required restoring force. It is also conceivable to arrange an eyelet at the end of the bend, bring the eyelets to the overlap and connect, for. B. by a coil spring.
  • the lifting seats are at one end under the load of a restoring element, in particular a spring.
  • the restoring element in particular the spring
  • the circumferential extent of the leno device should be relatively small if possible be held in order to prevent mutual interference of the leno devices during operation of the jacquard machine.
  • the fact that, for example, the spring is pushed directly onto the heald end or turned up, and so far separate measures for fixing the spring to the hawks are saved, thereby not only weight, but also space can be saved.
  • the lifting heald has at its other in the installed state upper end an eyelet for receiving a traction device, for example, the Jacquard cords to deflect each of the lifting healds relative to the other adjacent lifting heald.
  • the lifting heald has in the region of the legs of the half heald a guide groove for the legs of the half heald. That is, the legs of the half heald are guided through the groove in the heald during the entrainment movement through the respective heald heald.
  • This also vibrations can be further reduced, which in particular results from the fact that the leg of the half heald, which is seated in the groove of the lifting heald acts as a stiffener and thus contributes to a reduction in the tendency to oscillate.
  • the depth of the guide groove in the leg of the lifting heald corresponds approximately to the width of the legs of the half heald.
  • the fact that the legs of the half heald represent a self-contained part, there is no risk that the half heald exits due to vibrations from the guide groove in the heald.
  • the guide groove is open in the leg of the lifting heald in the direction of the adjacent lifting heald.
  • the half heald forms a self-contained frame, which ensures that the half heald can not break out of the guide grooves during operation. That is, even a narrow guide is sufficient to hold the legs of the half heald during the Carrying movement to keep safe by the appropriate lifting heald.
  • the use of slender lifting hooks is possible, in particular in the region of the receptacle for the limbs of the half strands, which leads to the desired weight saving.
  • a jacquard machine which is suitable for use of such a leno device is distinguished by the fact that the at least one choir or harness board of the jacquard machine has openings through which the lifting healds are guided relative to one another during their relative movement. It has already been pointed out elsewhere that the individual leno devices are arranged close to each other in the region of the choir or harness board of the jacquard machine. In order to avoid that the leno devices influence each other, vibrations of the leno devices must be avoided.
  • the jacquard machine has two chordboards or harness boards arranged at a distance from each other, wherein the lifting seats are guided through the openings of at least one of the chess boards, in particular of the lower chalk board. It has been found in such an embodiment that essentially no vibrations on the lifting healds occur more. In this respect, such leno devices can be arranged close together in the area of the choir or Harnischbrettes.
  • the invention further relates to the use of a leno device comprising two lifting healds and a half heald which is reciprocally taken by the heald to each other to create a leno weave on a jacquard machine.
  • the hurdle device 1 consists of two lifting heald 2 and a half heald 20.
  • the lifting healds have two legs 3, 4, which have a projection 5 approximately in the middle, which protrudes beyond the width of the legs 3, 4, as this is especially in view of Fig. 1 but also from Fig. 3 , results.
  • the half heald 20 has at its upper end an eyelet 21 for receiving the stationary thread and forms in the region of the eyelet 21, the support 22.
  • the legs 23 of the half heald 20 have at their lower end an angled portion 24 to which finger-like projections 25 connect ( Fig. 2 ). These finger-like projections 25 can be made to overlap, and are held together in this position by the coil spring 27, in so far as the coil spring 27 is pushed onto the finger-like projections 25 or turned up.
  • Fig. 2a missing these finger-like processes; Rather, an opening 24 a are provided here at the end of the bends, in order to connect the legs of the half heald; optionally by a spring 27 (not shown).
  • the heald 2 has in the region of the projection 5 has an opening 5a and a saddle 7 for the support 22 of the half heald 20, as this in detail Fig. 3 results.
  • the leg 23 of the half-heald 20 projects through the opening 5 a.
  • the heald heald 2 furthermore has at its lower end a threaded projection 2 a for unwinding a helical spring 6.
  • the coil spring 6 serves to apply the restoring force when the lifting healds 2 are deflected by the harness cords 40 arranged on the lugs 3 a of the legs 3 of the lifting healds 2.
  • a lifting heald is made of plastic; a half-hilt is made of metal. Due to the not insignificant speeds during weaving has been found that the half heald 20 cuts in the saddle 7 in the saddle 7 of the heald 2 in the saddle 7. This is to be avoided for various reasons, in particular in order to be able to ensure a perfect bond for a long time.
  • the saddle 7 is made of a wear-resistant material, for example metal or a glass fiber reinforced plastic.
  • a guide plate 30 formed of metal is provided, which is received as an insert body of the lifting heald 2 in the region of the projection 5. Also this guide shield is used to minimize wear.
  • the leg 4 of the lifting heald has starting from the projection 5 a guide groove 4a for receiving the leg 23 of the half heald 20. That is, the half heald 20 is guided by the guide groove 4a during the entrainment movement through the respective lifting heald.
  • the guide groove is arranged inside; their opening is thus directed to the opposite lifting heald.
  • FIG. 4 is only the jacquard machine with its lower part, ie representing the Harnisch- or choral board.
  • the total of 100 designated Jacquard machine here comprises two chimney boards 110, 120, which are spaced from each other.
  • the lifting jacks of the leno devices are each guided in corresponding openings 121.
  • the chorus 110 there are also openings 111, through which the harness cords 40 are guided for movement of the lifting healds. It should be noted at this point that, even if this is not shown, and the upper chordboard 110 can be used with corresponding openings for guiding the lifting healds.
  • choral board 120 Below the choral board 120 are holders for fixing the springs 6, which are arranged on the ends of the legs 4 of the lifting heald. The fixation of the respective spring of the half strands takes place on the chordboard 120 between two holes 121 for guiding the lifting healds.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

The device (1) has two lifting healds (2) and a half heald (20), where the half heald is lifted from one lifting heald during lifting of the lifting healds. Each lifting heald is directed to the other adjacent lifting heald, and has a projection (5) projecting through upper and lower legs of the lifting heald, and a saddle provided as hangers for the lifting heald. The projection has an opening, the half heald is operated under the influence of restoring force, and the legs have a stopper at each end. An independent claim is also included for a jacquard machine comprising a harness board.

Description

Die Erfindung betrifft eine Drehervorrichtung zur Herstellung einer Dreherbindung auf einer Jacquardmaschine. Ein Jacquardgewebe ist ein Sammelbegriff für alle Gewebe mit einer Bindungsmusterung, die nur durch das Anheben einzelner Kettfäden hervorgerufen werden kann, somit für sogenannte fein gezeichnete, variationsreiche Musterungen. Solche Jacquardgewebe werden auf Jacquardmaschinen hergestellt, die zur Herstellung des Gewebes ebenfalls Schuss- und Kettfäden verwenden.The invention relates to a leno device for producing a leno weave on a jacquard machine. A jacquard fabric is a collective term for all fabrics with a weave pattern that can only be created by lifting individual warp threads, thus for so-called finely drawn, varied patterns. Such Jacquard fabrics are made on Jacquard machines that also use weft and warp threads to make the fabric.

Gegenstand der Maschine ist ebenfalls eine Jacquardmaschine.
Eine Jacquardmaschine zeichnet sich unter anderem im Einzelnen dadurch aus, dass ein Harnisch- oder Chorbrett vorgesehen ist, das mehrere Öffnungen aufweist, durch das die Harnischschnüre durchgeführt sind. Die Harnischschnüre selbst sind an ihrem unteren Ende federbelastet.
Die Harnischschnüre selbst werden durch den Jacquardapparat einzeln angesteuert, wobei an dieser Stelle die Steuerung der Harnischschnüre nicht mehr erläutert werden muss, da diese Stand der Technik ist. Mit Jacquardmaschinen können die unterschiedlichsten Musterungen hergestellt werden.The subject of the machine is also a jacquard machine.
Specifically, a jacquard machine is characterized in that it provides a harness or chevron board having a plurality of openings through which the harness cords are passed. The harness cords themselves are spring loaded at their lower end.
The harness cords themselves are controlled individually by the jacquard apparatus, wherein at this point the control of the harness cords does not need to be explained, since this is state of the art. Jacquard machines can be used to produce a wide variety of patterns.

Es ist bekannt, bei Webstühlen Drehervorrichtungen herzustellen. Derartige Drehervorrichtungen werden unter anderem in Bezug auf die Herstellung von Gewebekanten eingesetzt. Solche Drehervorrichtungen umfassen zwei Hebelitzen und eine jeweils wechselseitig von den Hebelitzen mitgenommene Halblitze. Die Halblitze besitzt hierbei zwei Schenkel, die an ihrem oberen Ende eine Öse zur Aufnahme des Steherfadens aufweisen. Zu beiden Seiten der Halblitze besteht zu den Hebelitzen jeweils ein Schlitz, wobei der für die Bindung zwischen Halblitze und Hebelitze geführte Dreherfaden von der einen Seite der Halblitze auf die andere Seite der Halblitze wandert, je nachdem, von welcher Hebelitze die Halblitze gerade mitgenommen wird. Eine solche Drehervorrichtung ist nunmehr Gegenstand der vorliegenden Erfindung, und zwar deren Einsatz auf einer Jacquardmaschine.It is known to produce in looms leno devices. Such leno devices are used inter alia with respect to the production of fabric edges. Such leno devices comprise two lifting healds and one half heald taken alternately by the lifting healds. The half heald here has two legs, which have at their upper end an eyelet for receiving the stationary thread. On each side of the half heald there is a slot for each of the lifting healds, with the leno haulm guided for the binding between half heald and haulm hike moving from one side of the half heald to the other side of the half heald, depending on which lifting heald the half heald is just taken. Such a leno device is now the subject of the present invention, namely its use on a jacquard machine.

Problematisch bei dem Einsatz derartiger Drehervorrichtungen umfassend zwei Hebelitzen und eine Halblitze einer Jacquardmaschine ist, dass der Platz für solche Drehervorrichtungen auf der Jacquardmaschine äußerst begrenzt ist. Unter dem Chorbrett befindet sich dicht an dicht eine Vielzahl von Vorrichtungen, um ein entsprechendes Gewebe mit einer feinen Musterung herstellen zu können. Eine gegenseitige Beeinflussung der Drehervorrichtungen ist nach Möglichkeit zu vermeiden, und zwar insbesondere deshalb, um keine Webfehler auftreten zu lassen, und um des Weiteren dafür zu sorgen, dass beispielsweise durch gegenseitiges Berühren der Drehervorrichtungen kein allzu schneller Verschluss entsteht. Hieraus folgt unmittelbar, dass insbesondere die Schwingung der einzelnen Drehervorrichtungen während des Betriebes nach Möglichkeit gering gehalten werden muss, um eben zu verhindern, dass sich die einzelnen Drehervorrichtungen gegeneinander im Betrieb berühren. Des Weiteren ist auch dafür Sorge zu tragen, dass die räumliche Erstreckung in Richtung auf die benachbarte Drehervorrichtung relativ gering gehalten wird, um eben, wie bereits ausgeführt, eine gegenseitige Beeinflussung zu verhindern bzw. im Wesentlichen zu vermeiden. Insbesondere ist auch dafür Sorge zu tragen, dass das Gewicht der einzelnen Drehervorrichtungen gering gehalten wird, um die erforderliche Antriebsleistung nicht zu hoch werden zu lassen.The problem with the use of such leno devices comprising two lifting healds and a half heald jacquard machine is that the space for such leno devices on the jacquard machine extremely is limited. Under the chorus board is close to a variety of devices to produce a corresponding tissue with a fine pattern can. Mutual interference of the leno devices is to be avoided as far as possible, in particular in order to prevent web defects from occurring, and furthermore to ensure that, for example, mutual contact of the leno devices does not result in a too rapid closure. It follows immediately that in particular the vibration of the individual leno devices during operation must be kept as low as possible in order to just prevent the individual leno devices touching each other during operation. Furthermore, care must also be taken to ensure that the spatial extent in the direction of the adjacent leno device is kept relatively low in order to precisely prevent, or essentially avoid, mutual interference, as already explained. In particular, care must also be taken to ensure that the weight of the individual leno devices is kept low in order not to let the required drive power become too high.

Eine Drehervorrichtung, die den zuvor genannten Prämissen genügt, zeichnet sich im Einzelnen durch die Merkmale des Anspruchs 1 aus. Wie bereits ausgeführt, umfasst die Drehervorrichtung zwei Hebelitzen und eine Halblitze, die bei wechselweisem Anheben der Hebelitzen von der jeweiligen Hebelitze mitgenommen wird. Eine jede Hebelitze weist nach einem Merkmal der Erfindung einen auf die benachbarte Hebelitze zu gerichteten, über den oberen und unteren Schenkel der Hebelitze überstehenden Vorsprung mit einer Öffnung für die Halblitze und einem Sattel als Auflage für die Halblitze auf, wobei zumindest die Halblitze im Betrieb unter Einwirkung einer Rückstellkraft steht. Dadurch, dass die Schenkel der Hebelitze relativ schlank gehalten sind, und zwar bis auf den mittig zwischen den beiden Schenkeln angeordneten Vorsprung, wird eine nicht unerhebliche Gewichtsreduzierung erreicht. Wie bereits ausgeführt, ist eine solche Gewichtsreduzierung erforderlich, um die Antriebsleistung zu minimieren. Die Verwendung von Drehervorrichtungen erlaubt die Herstellung völlig neuartiger Musterungen.A leno device which satisfies the aforementioned premises is characterized in detail by the features of claim 1. As already stated, the leno device comprises two lifting heald and a half haul, which is taken with alternate lifting of the lifting healds of the respective lifting heald. Each honeydift has, according to a feature of the invention, a projection directed towards the adjacent heald, projecting over the upper and lower legs of the heald with an opening for the half heald and a saddle as a support for the half heald, wherein at least the half heald under operation Impact of a restoring force is. The fact that the legs of the lifting heald are kept relatively slim, except for the centrally located between the two legs projection, a not insignificant weight reduction achieved. As already stated, such weight reduction is required to minimize drive power. The use of leno devices allows the production of completely novel patterns.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, dass die Schenkel der Halblitze an einem Ende einen Stopper aufweisen. Durch den Stopper wird verhindert, dass sich die Halblitze von den Hebelitzen löst. Darüber hinaus ist durch den Stopper der Hub der Hebelitzen relativ zueinander vorgegeben. Das heißt auch, dass die Größe des Faches hierdurch entsprechend vorgegeben ist.According to a further feature of the invention it is provided that the legs of the half heald have a stopper at one end. The stopper prevents the half-heald from coming loose from the lifting healds. In addition, the stroke of the lifting healds relative to each other is predetermined by the stopper. This also means that the size of the compartment is thereby predetermined accordingly.

Des Weiteren ist vorgesehen, dass die Schenkel der Halblitze am anderen Ende unter Bildung eines Fadenauges für den Steherfaden zur Bildung eines Auflagers miteinander verbunden sind. D. h. im Bereich des Fadenauges bilden die Schenkel der Halblitze ein Auflager, das mit dem Sattel der jeweiligen Hebelitze zusammenwirkt; das heißt, in dem Moment, wo die Hebelitze die Halblitze mitnimmt, sitzt die Halblitze mit ihrem Auflager auf dem Sattel der Hebelitze auf.Furthermore, it is provided that the legs of the half heald are connected to one another at the other end to form a thread eye for the ground thread to form a support. Ie. in the area of the thread eye, the legs of the half-lashes form a support which interacts with the saddle of the respective lifting heald; that is, in the moment when the lifting heald takes the half heald, the half heald sits with its support on the saddle of the lifting heald.

Zur Bildung des Stoppers weisen die Schenkel der Halblitze jeweils eine endseitig aufeinander zu gerichtete Abwinklung auf, wobei vorteilhaft an die Abwinklung sich anschließende fingerartige Fortsätze vorgesehen sind, die miteinander verbindbar sind. Dadurch besteht die Möglichkeit, die Halblitze als quasi geschlossene Einheit auszubilden. Dies hat wesentliche Vorteile; zunächst einmal ist in diesem Zusammenhang zu nennen, dass durch ein geschlossenes Element die Schwingungen vermindert werden. Es ist leicht vorstellbar, dass eine Halblitze, die in etwa U-förmig ausgebildet ist, also zwei frei nach außen ragende Schenkel aufweist, eine wesentlich höhere Neigung zu Schwingungen aufweist, als eine in sich geschlossene Halblitze. Wie bereits an anderer Stelle erläutert, soll, um eine gegenseitige Beeinflussung der Drehervorrichtungen zu vermeiden, insbesondere auch das Schwingungsvermögen der Vorrichtung insgesamt reduziert werden.To form the stopper, the legs of the half-healds each have an angled end-to-end, whereby advantageous finger-like extensions adjoining the angling are provided which can be connected to one another. This makes it possible to form the half heald as a quasi-closed unit. This has significant advantages; First of all, it must be mentioned in this context that the vibrations are reduced by a closed element. It is easy to imagine that a half-heald, which is approximately U-shaped, that is, has two legs projecting freely outwards, has a much higher tendency to oscillate than a self-contained half-heald. As already explained elsewhere, should be a mutual To avoid influencing the leno devices, in particular, the vibration capacity of the device can be reduced overall.

Nach einem weiteren besonderen Merkmal stehen die fingerartigen Fortsätze zur Erzielung einer Rückhaltekraft unter insbesondere einer federartigen Last, insbesondere einer Spiralfeder. Hierdurch wird sichergestellt, dass die Halblitze mit ihrem Auflager immer auf dem Sattel der jeweils sie mitnehmenden Hebelitze aufliegt, ohne dass die Gefahr besteht, dass beim Wechsel, das heißt, beim Wechsel der Halblitze von einer Hebelitze zur anderen, die Halblitze auf dem Sattel der jeweiligen Hebelitze "auftanzt". Denkbar ist in diesem Fall auch, die Rückhaltekraft durch Magnete aufzubringen, die an den Schenkeln der Hebelitze angeordnet sind und dafür sorgen, dass die Halblitze auf dem Sattel die Hebelitze bei der Mitnahmebewegung aufsitzt.According to a further special feature, the finger-like extensions are to achieve a restraining force, in particular a spring-like load, in particular a spiral spring. This ensures that the half heald always rests with its support on the saddle of each hauling them heald without the risk that when changing, that is, when changing the half heald from one heald to another, the half heald on the saddle respective huck "auftanzt". It is also conceivable in this case to apply the restraining force by magnets which are arranged on the legs of the lifting heald and ensure that the half heald rests on the saddle the lifting heald during the entrainment movement.

Nach einem weiteren Merkmal der Erfindung ist auf dem fingerartigen Fortsatz eine Spiralfeder aufbringbar. Das heißt, die Fortsätze können insofern zur Überlappung gebracht werden und hierbei die Spiralfeder aufnehmen. Hieraus folgt, dass die Spiralfeder insofern einen doppelten Zweck erfüllt, nämlich zum einen dafür zu sorgen, dass die Halblitze eine geschlossene Einheit bildet und zum anderen die erforderliche Rückstellkraft aufbringt. Denkbar ist ebenfalls am Ende der Abwinkelung jeweils eine Öse anzuordnen, die Ösen zur Überlappung zu bringen und zu verbinden, z. B. durch eine Spiralfeder.According to a further feature of the invention, a coil spring can be applied to the finger-like extension. That is, the extensions can be brought to overlap so far and this record the coil spring. It follows that the coil spring so far serves a dual purpose, namely on the one hand to ensure that the half heald forms a closed unit and on the other hand applies the required restoring force. It is also conceivable to arrange an eyelet at the end of the bend, bring the eyelets to the overlap and connect, for. B. by a coil spring.

Des Weiteren stehen die Hebelitzen an ihrem einen Ende jeweils unter der Last eines Rückstellelements, insbesondere einer Feder. Hierbei ist vorgesehen, dass das Rückstellelement, insbesondere die Feder, endseitig auf den Schenkel der Hebelitze aufbringbar, insbesondere aufschiebbar oder aufdrehbar, ist. Wie bereits an anderer Stelle erläutert, soll die Umfangserstreckung der Drehervorrichtung nach Möglichkeit relativ gering gehalten sein, um eine gegenseitige Beeinflussung der Drehervorrichtungen während des Betriebs der Jacquardmaschine zu verhindern. Dadurch, dass beispielsweise die Feder unmittelbar auf die Hebelitzen endseitig aufgeschoben oder aufgedreht wird, und insofern gesonderte Maßnahmen zur Fixierung der Feder an den Hebelitzen gespart werden, kann hierdurch nicht nur Gewicht, sondern darüber hinaus auch Platz eingespart werden. Die Hebelitze besitzt an ihrem anderen im Einbauzustand oberen Ende eine Öse zur Aufnahme eines Zugmittels, zum Beispiel der Jacquardschnüre, um die Hebelitzen jeweils relativ zur anderen benachbarten Hebelitze auszulenken.Furthermore, the lifting seats are at one end under the load of a restoring element, in particular a spring. In this case, it is provided that the restoring element, in particular the spring, can be applied, in particular pushed or twisted, onto the leg of the lifting heald. As already explained elsewhere, the circumferential extent of the leno device should be relatively small if possible be held in order to prevent mutual interference of the leno devices during operation of the jacquard machine. The fact that, for example, the spring is pushed directly onto the heald end or turned up, and so far separate measures for fixing the spring to the hawks are saved, thereby not only weight, but also space can be saved. The lifting heald has at its other in the installed state upper end an eyelet for receiving a traction device, for example, the Jacquard cords to deflect each of the lifting healds relative to the other adjacent lifting heald.

Nach einem weiteren Merkmal der Erfindung besitzt die Hebelitze im Bereich der Schenkel der Halblitze eine Führungsnut für die Schenkel der Halblitze. Das heißt, die Schenkel der Halblitze sind durch die Nut in der Hebelitze während der Mitnahmebewegung durch die jeweilige Hebelitze geführt. Auch hierdurch können Schwingungen weiter vermindert werden, was sich insbesondere daraus ergibt, dass der Schenkel der Halblitze, der in der Nut der Hebelitze einsitzt, als Versteifung wirkt und insofern zu einer Verminderung der Schwingungsneigung beiträgt. Vorteilhaft entspricht die Tiefe der Führungsnut in dem Schenkel der Hebelitze in etwa der Breite der Schenkel der Halblitze. Insbesondere dadurch, dass die Schenkel der Halblitze ein in sich geschlossenes Teil darstellen, besteht nicht die Gefahr, dass die Halblitze aufgrund von Schwingungen aus der Führungsnut in der Hebelitze austritt.According to a further feature of the invention, the lifting heald has in the region of the legs of the half heald a guide groove for the legs of the half heald. That is, the legs of the half heald are guided through the groove in the heald during the entrainment movement through the respective heald heald. This also vibrations can be further reduced, which in particular results from the fact that the leg of the half heald, which is seated in the groove of the lifting heald acts as a stiffener and thus contributes to a reduction in the tendency to oscillate. Advantageously, the depth of the guide groove in the leg of the lifting heald corresponds approximately to the width of the legs of the half heald. In particular, the fact that the legs of the half heald represent a self-contained part, there is no risk that the half heald exits due to vibrations from the guide groove in the heald.

Zur Platzersparnis ist weiterhin wesentlich, dass die Führungsnut im Schenkel der Hebelitze in Richtung auf die benachbarte Hebelitze geöffnet ist. Wie bereits ausgeführt, bildet die Halblitze einen in sich geschlossenen Rahmen, wodurch gesichert ist, dass die Halblitze bei Betrieb nicht aus den Führungsnuten ausbrechen kann. Das heißt, selbst eine schmale Führung ist ausreichend, um die Schenkel der Halblitze während der Mitnahmebewegung durch die entsprechende Hebelitze sicher zu halten. Insofern ist die Verwendung von schlanken Hebelitzen insbesondere im Bereich der Aufnahme für die Schenkel der Halblitzen möglich, was zu der gewünschten Gewichtsersparnis führt.To save space is also essential that the guide groove is open in the leg of the lifting heald in the direction of the adjacent lifting heald. As already stated, the half heald forms a self-contained frame, which ensures that the half heald can not break out of the guide grooves during operation. That is, even a narrow guide is sufficient to hold the legs of the half heald during the Carrying movement to keep safe by the appropriate lifting heald. In this respect, the use of slender lifting hooks is possible, in particular in the region of the receptacle for the limbs of the half strands, which leads to the desired weight saving.

Eine Jacquardmaschine, die zum Einsatz einer solchen Drehervorrichtung geeignet ist, zeichnet sich dadurch aus, dass das mindestens eine Chor-oder Harnischbrett der Jacquardmaschine Öffnungen aufweist, durch die die Hebelitzen während ihrer Relativbewegung zueinander geführt sind. Es wurde bereits an anderer Stelle darauf hingewiesen, dass die einzelnen Drehervorrichtungen dicht an dicht im Bereich des Chor- oder Harnischbrettes der Jacquardmaschine angeordnet sind. Um zu vermeiden, dass sich die Drehervorrichtungen gegenseitig beeinflussen, müssen Schwingungen der Drehervorrichtungen vermieden werden.A jacquard machine which is suitable for use of such a leno device is distinguished by the fact that the at least one choir or harness board of the jacquard machine has openings through which the lifting healds are guided relative to one another during their relative movement. It has already been pointed out elsewhere that the individual leno devices are arranged close to each other in the region of the choir or harness board of the jacquard machine. In order to avoid that the leno devices influence each other, vibrations of the leno devices must be avoided.

Eine solche Möglichkeit besteht insbesondere dann, wenn, wie nach einer vorteilhaften Ausführungsform vorgeschlagen, die Jacquardmaschine zwei beabstandet zueinander angeordnete Chor- oder Harnischbretter aufweist, wobei die Hebelitzen durch die Öffnungen mindestens eines der Chorbretter, insbesondere des unteren Chorbrettes, geführt sind. Es hat sich bei einer solchen Ausgestaltung herausgestellt, dass im Wesentlichen keine Schwingungen an den Hebelitzen mehr auftreten. Insofern können derartige Drehervorrichtungen dicht an dicht im Bereich des Chor- oder Harnischbrettes angeordnet werden.Such a possibility exists in particular when, as proposed according to an advantageous embodiment, the jacquard machine has two chordboards or harness boards arranged at a distance from each other, wherein the lifting seats are guided through the openings of at least one of the chess boards, in particular of the lower chalk board. It has been found in such an embodiment that essentially no vibrations on the lifting healds occur more. In this respect, such leno devices can be arranged close together in the area of the choir or Harnischbrettes.

Gegenstand der Erfindung ist fernerhin die Verwendung einer Drehervorrichtung, umfassend zwei Hebelitzen und eine Halblitze, die von den Hebelitzen jeweils wechselseitig mitgenommen wird zur Erstellung einer Dreherbindung auf einer Jacquardmaschine.The invention further relates to the use of a leno device comprising two lifting healds and a half heald which is reciprocally taken by the heald to each other to create a leno weave on a jacquard machine.

Anhand der Zeichnung wird die Erfindung nachstehend beispielhaft näher erläutert.

Fig. 1
zeigt die erfindungsgemäße Drehervorrichtung in perspektivischer Darstellung;
Fig. 2
zeigt die Halblitze;
Fig. 2a
zeigt den unteren Teil einer abgewandelten Form einer Halblitze;
Fig. 3
zeigt die Einzelheit X aus Fig. 1 in vergrößerter Darstellung;
Fig. 4
zeigt schematisch den unteren Teil einer Jacquardmaschine mit Drehervorrichtung.
Reference to the drawing, the invention is explained in more detail below by way of example.
Fig. 1
shows the leno device according to the invention in a perspective view;
Fig. 2
shows the half-heald;
Fig. 2a
shows the lower part of a modified form of a half heald;
Fig. 3
shows the detail X Fig. 1 in an enlarged view;
Fig. 4
schematically shows the lower part of a jacquard machine with leno device.

Gemäß Figur 1 besteht die Drehervorrichtung 1 aus zwei Hebelitzen 2 und einer Halblitze 20. Die Hebelitzen weisen zwei Schenkel 3, 4 auf, die in etwa mittig einen Vorsprung 5 besitzen, der über die Breite der Schenkel 3, 4 übersteht, wie sich dies insbesondere in Anschauung von Fig. 1, aber auch von Fig. 3, ergibt. Die Halblitze 20 besitzt an ihrem oberen Ende eine Öse 21 zur Aufnahme des Steherfadens und bildet im Bereich der Öse 21 das Auflager 22. Die Schenkel 23 der Halblitze 20 weisen an ihrem unteren Ende eine Abwinklung 24 auf, an die sich fingerartige Fortsätze 25 anschließen (Fig. 2). Diese fingerartigen Fortsätze 25 können zur Überlappung gebracht werden, und werden in dieser Stellung durch die Spiralfeder 27 zusammengehalten, und zwar insofern, als die Spiralfeder 27 auf die fingerartigen Fortsätze 25 aufgeschoben oder aufgedreht wird.According to FIG. 1 the hurdle device 1 consists of two lifting heald 2 and a half heald 20. The lifting healds have two legs 3, 4, which have a projection 5 approximately in the middle, which protrudes beyond the width of the legs 3, 4, as this is especially in view of Fig. 1 but also from Fig. 3 , results. The half heald 20 has at its upper end an eyelet 21 for receiving the stationary thread and forms in the region of the eyelet 21, the support 22. The legs 23 of the half heald 20 have at their lower end an angled portion 24 to which finger-like projections 25 connect ( Fig. 2 ). These finger-like projections 25 can be made to overlap, and are held together in this position by the coil spring 27, in so far as the coil spring 27 is pushed onto the finger-like projections 25 or turned up.

Gemäß Fig. 2a fehlen diese fingerartigen Fortsätze; vielmehr sind hier am Ende der Abwinklungen jeweils eine Öffnung 24a vorgesehen, um die Schenkel der Halblitze zu verbinden; gegebenenfalls durch eine Feder 27 (nicht dargestellt).According to Fig. 2a missing these finger-like processes; Rather, an opening 24 a are provided here at the end of the bends, in order to connect the legs of the half heald; optionally by a spring 27 (not shown).

Die Hebelitze 2 besitzt im Bereich des Vorsprungs 5 eine Öffnung 5a und einen Sattel 7 für das Auflager 22 der Halblitze 20, wie sich dies im Einzelnen aus Fig. 3 ergibt. Durch die Öffnung 5a ragt der Schenkel 23 der Halblitze 20. Die Hebelitze 2 weist darüber hinaus an ihrem unteren Ende einen Gewindeansatz 2a zum Aufdrehen einer Spiralfeder 6 auf. Die Spiralfeder 6 dient der Aufbringung der Rückstellkraft, wenn die Hebelitzen 2 durch die an den Ösen 3a der Schenkel 3 der Hebelitzen 2 angeordneten Harnischschnüre 40 ausgelenkt werden.The heald 2 has in the region of the projection 5 has an opening 5a and a saddle 7 for the support 22 of the half heald 20, as this in detail Fig. 3 results. The leg 23 of the half-heald 20 projects through the opening 5 a. The heald heald 2 furthermore has at its lower end a threaded projection 2 a for unwinding a helical spring 6. The coil spring 6 serves to apply the restoring force when the lifting healds 2 are deflected by the harness cords 40 arranged on the lugs 3 a of the legs 3 of the lifting healds 2.

Eine Hebelitze ist aus Kunststoff gefertigt; eine Halblitze besteht aus Metall. Durch die nicht unerheblichen Geschwindigkeiten beim Weben hat sich herausgestellt, dass die Halblitze 20 im Bereich des Sattels 7 der Hebelitze 2 in den Sattel 7 einschneidet. Dies ist aus verschiedenen Gründen zu vermeiden, insbesondere deshalb, um eine einwandfreie Bindung auch über längere Zeit sicherstellen zu können. Insofern ist der Sattel 7 aus einem verschleißfesten Material hergestellt, zum Beispiel Metall oder auch einem glasfaserverstärkten Kunststoff. Des Weiteren ist vorgesehen, dass im Bereich des Sattels 7 der Hebelitze 2 ein aus Metall ausgebildetes Führungsschild 30 vorgesehen ist, das als Einsatzkörper von der Hebelitze 2 im Bereich des Vorsprungs 5 aufgenommen wird. Auch dieses Führungsschild dient der Minimierung des Verschleißes.A lifting heald is made of plastic; a half-hilt is made of metal. Due to the not insignificant speeds during weaving has been found that the half heald 20 cuts in the saddle 7 in the saddle 7 of the heald 2 in the saddle 7. This is to be avoided for various reasons, in particular in order to be able to ensure a perfect bond for a long time. In this respect, the saddle 7 is made of a wear-resistant material, for example metal or a glass fiber reinforced plastic. Furthermore, it is provided that in the region of the saddle 7 of the lifting heald 2, a guide plate 30 formed of metal is provided, which is received as an insert body of the lifting heald 2 in the region of the projection 5. Also this guide shield is used to minimize wear.

Der Schenkel 4 der Hebelitze besitzt ausgehend von dem Vorsprung 5 eine Führungsnut 4a zur Aufnahme des Schenkels 23 der Halblitze 20. Das heißt, die Halblitze 20 wird durch die Führungsnut 4a während der Mitnahmebewegung durch die jeweilige Hebelitze geführt. Die Führungsnut ist innen angeordnet; ihre Öffnung ist somit auf die gegenüberliegende Hebelitze zu gerichtet.The leg 4 of the lifting heald has starting from the projection 5 a guide groove 4a for receiving the leg 23 of the half heald 20. That is, the half heald 20 is guided by the guide groove 4a during the entrainment movement through the respective lifting heald. The guide groove is arranged inside; their opening is thus directed to the opposite lifting heald.

In Fig. 4 ist lediglich die Jacquardmaschine mit ihrem unteren Teil, d. h. dem Harnisch- oder Chorbrett darstellt. Die insgesamt mit 100 bezeichnete Jacquardmaschine umfasst hierbei zwei Chorbretter 110, 120, die beabstandet zueinander angeordnet sind. Durch das untere Chorbrett 120 werden die Hebelitzen der Drehervorrichtungen jeweils in entsprechenden Öffnungen 121 geführt. In dem Chorbrett 110 finden sich gleichfalls Öffnungen 111, durch die die Harnischschnüre 40 zur Bewegung der Hebelitzen geführt sind. Es sei an dieser Stelle darauf hingewiesen, dass, auch wenn dies nicht dargestellt ist, auch das obere Chorbrett 110 mit entsprechenden Öffnungen zur Führung der Hebelitzen eingesetzt werden kann.In Fig. 4 is only the jacquard machine with its lower part, ie representing the Harnisch- or choral board. The total of 100 designated Jacquard machine here comprises two chimney boards 110, 120, which are spaced from each other. Through the lower chordboard 120, the lifting jacks of the leno devices are each guided in corresponding openings 121. In the chorus 110 there are also openings 111, through which the harness cords 40 are guided for movement of the lifting healds. It should be noted at this point that, even if this is not shown, and the upper chordboard 110 can be used with corresponding openings for guiding the lifting healds.

Unterhalb des Chorbrettes 120 befinden sich Halter zur Fixierung der Federn 6, die endseitig an den Schenkeln 4 der Hebelitze angeordnet sind. Die Fixierung der jeweiligen Feder der Halblitzen erfolgt auf dem Chorbrett 120 zwischen zwei Bohrungen 121 zur Führung der Hebelitzen.Below the choral board 120 are holders for fixing the springs 6, which are arranged on the ends of the legs 4 of the lifting heald. The fixation of the respective spring of the half strands takes place on the chordboard 120 between two holes 121 for guiding the lifting healds.

Claims (16)

Drehervorrichtung (1) zur Herstellung einer Dreherbindung auf einer Jacquardmaschine, wobei die Drehervorrichtung zwei Hebelitzen (2) und eine Halblitze (20) umfasst, die bei wechselweisem Anheben der Hebelitzen (2) von der jeweiligen Hebelitze (2) mitgenommen wird, wobei jede Hebelitze (2) einen auf die benachbarte Hebelitze (2) zu gerichteten, über den oberen und unteren Schenkel der Hebelitze (2) überstehenden Vorsprung (5) mit einer Öffnung (5a) für die Halblitze (20) und einem Sattel (7) als Auflager für die Halblitze (20) aufweist, wobei zumindest die Halblitze (20) in Betrieb unter Einwirkung einer Rückstellkraft steht.Turning device (1) for producing a leno weave on a jacquard machine, wherein the leno device comprises two lifting healds (2) and a half heald (20), which is entrained by the respective lifting heald (2) when the lifting healds (2) are raised alternately, each lifting heald (2) a projection (5) projecting over the upper and lower legs of the lifting heald (2) onto the adjacent lifting heald (2), having an opening (5a) for the half heald (20) and a saddle (7) as a support for the half heald (20), wherein at least the half heald (20) is in operation under the action of a restoring force. Drehervorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Schenkel (23) der Halblitze (20) an einem Ende einen Stopper aufweisen.A leno device according to claim 1,
characterized,
that the legs (23) of the half heald (20) at one end of a stopper. Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schenkel (23) der Halblitze (20) am anderen Ende unter Bildung einer Öse (21) zur Bildung eines Auflagers (22) miteinander verbunden sind.Turning device according to one of the preceding claims,
characterized,
in that the legs (23) of the half heald (20) at the other end are connected together to form an eyelet (21) to form a support (22). Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schenkel (23) der Halblitze (20) zur Bildung des Stoppers eine endseitig aufeinander zu gerichtete Abwinklung (24) aufweisen.Turning device according to one of the preceding claims,
characterized,
in that the limbs (23) of the half heald (20) have an angled end (24) facing one another to form the stopper. Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Schenkel (23) an die Abwicklung (24) anschließend fingerartige Fortsätze (25) aufweisen, die verbindbar sind.Turning device according to one of the preceding claims,
characterized,
that the legs (23) to the processing (24) then finger-like projections (25) which can be connected. Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die fingerartigen Fortsätze (25) zur Erzielung der Rückstellkraft unter einer federartigen Last (27) stehen.Turning device according to one of the preceding claims,
characterized,
in that the finger-like extensions (25) are under a spring-like load (27) in order to obtain the restoring force. Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass auf die fingerartigen Fortsätze (25) eine Spiralfeder (27) aufbringbar ist.Turning device according to one of the preceding claims,
characterized,
in that a spiral spring (27) can be applied to the finger-like extensions (25). Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Hebelitze (2) zumindest an ihrem einen Ende jeweils unter der Last eines Rückstellelements, insbesondere einer Feder (6), steht.Turning device according to one of the preceding claims,
characterized,
in that the lifting heald (2) is under the load of a restoring element, in particular a spring (6), at least at one of its ends. Drehervorrichtung nach Anspruch 8,
dadurch gekennzeichnet,
dass das Rückstellelement, insbesondere die Feder (6), endseitig auf den Schenkel (4) der Hebelitze (2) aufbringbar, insbesondere aufschiebbar oder aufdrehbar, ist.Turning device according to claim 8,
characterized,
in that the restoring element, in particular the spring (6), can be applied to the leg (4) of the lifting heald (2) at the ends, in particular can be slid or opened. Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Hebelitze (2) an ihrem anderen Ende eine Öse (3a) zur Aufnahme eines Zugmittels, zum Beispiel der Jacquardschnüre (40), aufweist.Turning device according to one of the preceding claims,
characterized,
in that the lifting heald (2) has at its other end an eyelet (3a) for receiving a pulling means, for example the jacquard cords (40). Drehervorrichtung nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Hebelitze (2) im Bereich der Schenkel (23) der Halblitze (20) eine Führungsnut (4a) für die Schenkel (23) der Halblitze (20) aufweist.Turning device according to one of the preceding claims,
characterized,
that the lifting heald (2) in the region of the legs (23) of the half heald (20) has a guide groove (4a) for the legs (23) of the half heald (20). Drehervorrichtung nach Anspruch 11,
dadurch gekennzeichnet,
dass die Tiefe der Führungsnut (4a) in dem Schenkel (4) der Hebelitze (2) in etwa der Breite der Schenkel (23) der Halblitze (20) entspricht.Turning device according to claim 11,
characterized,
that the depth of the guide groove (4a) in the leg (4) of the lifting heald (2) corresponds approximately to the width of the legs (23) of the half heald (20). Drehervorrichtung nach Anspruch 11,
dadurch gekennzeichnet,
dass die Führungsnut (4a) im Schenkel (4) der Hebelitze (2) in Richtung auf die benachbarte Hebelitze (2) geöffnet ist.Turning device according to claim 11,
characterized,
that the guide groove (4a) in the legs (4) towards the adjacent lifting heald (2) is open of the lifting heald (2). Verwendung einer Drehervorrichtung, umfassend zwei Hebelitzen und eine Halblitze, wobei die Halblitze von den Hebelitzen wechselweise mitgenommen wird auf einer Jacquardwebmaschine.Use of a leno device, comprising two lifting healds and a half haul, wherein the half heald of the lifting healds is taken alternately on a jacquard loom. Jacquardmaschine, umfassend mindestens ein Chor- oder Harnischbrett,
dadurch gekennzeichnet,
dass durch die Öffnungen (121) im Chorbrett (120) die Hebelitzen (2) geführt sind.Jacquard machine comprising at least one choir or harness board,
characterized,
that through the openings (121) in the chimney board (120), the lifting seats (2) are guided. Jacquardmaschine nach Anspruch 5,
dadurch gekennzeichnet,
dass die Jacquardmaschine (100) zwei beabstandet zueinander angeordnete Chorbretter (110, 120) aufweist, wobei die Hebelitzen (2) durch die Öffnungen (111, 121) beider Chorbretter (110, 120) geführt sind.Jacquard machine according to claim 5,
characterized,
in that the jacquard machine (100) has two chess boards (110, 120) arranged at a distance from one another, the lifting healds (2) being guided through the openings (111, 121) of both chimney boards (110, 120).
EP10001818.3A 2009-04-03 2010-02-23 Jacquard loom and Jacquard machine Active EP2236655B1 (en)

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US9951470B2 (en) 2013-03-15 2018-04-24 Gp Cellulose Gmbh Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
CN109554807A (en) * 2018-10-10 2019-04-02 浙江丝绸科技有限公司 A kind of braiding method and device of yardage Turkey gauze
EP3581689A1 (en) 2018-06-12 2019-12-18 Gebrüder Klöcker GmbH Clamping device for reversibly connecting a harness cord with a lift heald of a rotary connector

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DE8814891U1 (en) * 1988-11-30 1989-03-09 Klöcker-Entwicklungs-GmbH, 4280 Borken Device for forming a leno edge, in particular for use on a Jacquard machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9951470B2 (en) 2013-03-15 2018-04-24 Gp Cellulose Gmbh Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
US10550516B2 (en) 2013-03-15 2020-02-04 Gp Cellulose Gmbh Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
EP3581689A1 (en) 2018-06-12 2019-12-18 Gebrüder Klöcker GmbH Clamping device for reversibly connecting a harness cord with a lift heald of a rotary connector
CN109554807A (en) * 2018-10-10 2019-04-02 浙江丝绸科技有限公司 A kind of braiding method and device of yardage Turkey gauze

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EP2236655A3 (en) 2013-06-26
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