EP0275385B1 - Thread guiding element for textile machines - Google Patents

Thread guiding element for textile machines Download PDF

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Publication number
EP0275385B1
EP0275385B1 EP87116375A EP87116375A EP0275385B1 EP 0275385 B1 EP0275385 B1 EP 0275385B1 EP 87116375 A EP87116375 A EP 87116375A EP 87116375 A EP87116375 A EP 87116375A EP 0275385 B1 EP0275385 B1 EP 0275385B1
Authority
EP
European Patent Office
Prior art keywords
thread
flat knitting
knitting machine
thread guide
wires
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.)
Expired - Lifetime
Application number
EP87116375A
Other languages
German (de)
French (fr)
Other versions
EP0275385A1 (en
Inventor
Dieter Wurst
Gerhard Nissle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Publication of EP0275385A1 publication Critical patent/EP0275385A1/en
Application granted granted Critical
Publication of EP0275385B1 publication Critical patent/EP0275385B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/54—Thread guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/02—Stationary rods or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a flat knitting machine with the features listed in the preamble of the main claim.
  • the threads are guided from a thread storage point to a thread processing point largely freely between thread guide eyes forming thread deflection points. Through additional devices, the thread experiences a sufficient tension that keeps it in its guideway. It is also known to guide the thread in a tube in protected areas of textile machines. With heavy yarns, in particular yarns provided with metal threads, the risk of sagging increases with freely guided yarns. This danger is particularly present in flat knitting machines, where the yarns have to run horizontally and without guidance over long distances from the needle bed ends to thread guides which can be moved in both directions. Here you can the yarns are also not guided in tubes, which carry the risk of clogging due to fiber abrasion anyway.
  • the invention has for its object to provide a thread guide element for flat knitting machines with which an undesirable sag of an openly guided yarn or thread is avoided without obstructing the thread path.
  • US-A-4,186,549 discloses a pivotable rod as thread guide element in a thread winding machine, around which a twisted thread is wrapped in several turns in order to prevent it from hanging freely and thereby being able to untwist.
  • the thread tension should also be increased, which additionally prevents the thread from unraveling.
  • the thread guide element solves another task there with the disadvantage that applies to flat knitting machines that there is an increase in the set thread tension, which has a disadvantageous effect on the knitted pattern. With flat knitting machines, low-friction thread guidance must be ensured.
  • the smooth guide body serves as a support for the open thread. Since the thread on the guide body is not in numerous turns is wound, but only loosely rests in a few places, the braking effect of the guide body on the moving thread is so low that it can be accepted.
  • At least one guide body in the form of a tensioned wire can advantageously be guided parallel to each thread guide rail.
  • several tensioned wires are arranged as guide bodies at a distance from each other below the thread guide rail in the areas between the thread guide arms, which extend over the entire active length of the needle beds.
  • the wires can advantageously be kept permanently under tension by tension springs, as a result of which age-related extensions of such wires, for example plastic wires, can also be compensated for.
  • Fig. 1 shows a guide body in the form of a tensioned wire 15, around which a moving thread 11 is loosely laid with a few turns, so that it bears practically only at a few points 14 on the wire 15.
  • Fig. 2 shows a schematic front view of a flat knitting machine 16 with a carrier 17 for at least one needle bed 18, with a spool board 19 and with a thread guide rail 20 extending above the needle bed 18 between two stands 21 and 22 arranged on the needle bed carrier.
  • the machine carriage 23 is at the left end of the needle bed 18 is shown schematically with its bracket 24 spanning the thread guide rail.
  • Two thread guides 25 and 26 are shown on the thread guide rail 20.
  • the flat knitting machine 16 is provided for the threads, not shown, with guide bodies in the form of smooth wires 15, the thread guide rails between the two 20 supporting stands 21 and 22 are drawn parallel to the thread guide rails and underneath them and are held under tension by means of a tension spring 27 shown in the area of the stand 22.
  • the wires 15 serve the threads as a guide body on their essentially horizontal feed path, which extends from the needle bed ends to the thread guides 25 or 26 movable along the needle beds 18.
  • each thread guide has a thread guide arm 25.2 which extends from the thread guide carriage 25.1 down to the knitting area of the machine and which ends in a thread guide nut 25.3.
  • a separate wire 15 is provided as a guide body for each thread. 4, the wires 15 are stretched below the thread guide rails 20 / 1-20 / 3 between the thread guide arms 25.2 of the individual thread guides 25, their position being predetermined by a special anchoring plate 28, which is only schematically indicated in FIGS. 3 and 4.
  • the threads are placed in a few turns around the tensioning wires analogously to FIG. 1 and are guided away from the tensioning wire according to FIG. 3 into one of two lateral thread guide eyelets 29 of the thread guide arm 25.2 of the associated thread guide 25 and from there further to the thread guide nut 25.3.
  • Threads act in a conventional manner, not shown, thread tensioning devices which also bring back the thread guided over a tensioned wire 15 as a thread guide when a thread guide 25 is reset.
  • thread guide elements When using the thread guide elements on textile machines, other thread guide elements, such as thread guide eyelets, can generally be omitted in part.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)

Description

Die Erfindung betrifft eine Flachstrickmaschine mit den im Oberbegriff des Hauptanspruches aufgeführten Merkmalen.The invention relates to a flat knitting machine with the features listed in the preamble of the main claim.

In Flachstrickmaschinen werden die Fäden von einer Fadenspeicherstelle zu einer Fadenverarbeitungsstelle weitgehend frei zwischen Fadenumlenkstellen bildenden Fadenleitösen geführt. Durch zusätzliche Einrichtungen erfährt der Faden hierbei eine ausreichende Spannung, die ihn in seiner Führungsbahn hält. Es ist auch bekannt, den Faden in gefährdeten Bereichen von Textilmaschinen geschützt in einem Rohr zu führen. Bei schweren Garnen, insbesondere mit Metallfäden versehenen Garnen, verstärkt sich bei frei geführten Garnen die Gefahr des Durchhängens. Diese Gefahr ist insbesondere bei Flachstrickmaschinen vorhanden, wo die Garne über längere Strecken waagerecht und führungsfrei von den Nadelbettenden her bis zu in beiden Richtungen bewegbaren Fadenführern verlaufen müssen. Hier können die Garne auch nicht in Rohren geführt werden, die ohnehin die Gefahr des Verstopfens durch Faserabrieb in sich tragen.In flat knitting machines, the threads are guided from a thread storage point to a thread processing point largely freely between thread guide eyes forming thread deflection points. Through additional devices, the thread experiences a sufficient tension that keeps it in its guideway. It is also known to guide the thread in a tube in protected areas of textile machines. With heavy yarns, in particular yarns provided with metal threads, the risk of sagging increases with freely guided yarns. This danger is particularly present in flat knitting machines, where the yarns have to run horizontally and without guidance over long distances from the needle bed ends to thread guides which can be moved in both directions. Here you can the yarns are also not guided in tubes, which carry the risk of clogging due to fiber abrasion anyway.

Der Erfindung liegt die Aufgabe zugrunde, ein Fadenführungselement für Flachstrickmaschinen zu schaffen, mit welcher ein unerwünschter Durchhang eines offen geführten Garnes oder Fadens ohne Behinderung des Fadenlaufes vermieden wird.The invention has for its object to provide a thread guide element for flat knitting machines with which an undesirable sag of an openly guided yarn or thread is avoided without obstructing the thread path.

Die gestellte Aufgabe wird erfindungsgemäß durch ein Fadenführungselement mit den im kennzeichnenden Teil des Hauptanspruches aufgeführten Merkmalen gelöst.The object is achieved by a thread guide element with the features listed in the characterizing part of the main claim.

Zwar ist durch die US-A- 4 186 549 bei einer Fadenspulmaschine ein verschwenkbarer Stab als Fadenleitelement bekannt, um welchen ein gezwirnter Faden in mehreren Windungen herumgelegt ist, um zu verhindern, daß er freihängt und sich dadurch entzwirnen kann. Dabei soll auch die Fadenspannung erhöht werden, was den Faden zusätzlich an einem Entzwirnen hindert. Das Fadenleitelement löst dort eine andere Aufgabe mit dem für Flachstrickmaschinen geltenden Nachteil, daß eine Erhöhung der eingestellten Fadenspannung erfolgt, die sich nachteilig auf das Gestrickbild auswirkt. Bei Flachstrickmaschinen muß auf eine reibungsarme Fadenführung geachtet werden.US-A-4,186,549 discloses a pivotable rod as thread guide element in a thread winding machine, around which a twisted thread is wrapped in several turns in order to prevent it from hanging freely and thereby being able to untwist. The thread tension should also be increased, which additionally prevents the thread from unraveling. The thread guide element solves another task there with the disadvantage that applies to flat knitting machines that there is an increase in the set thread tension, which has a disadvantageous effect on the knitted pattern. With flat knitting machines, low-friction thread guidance must be ensured.

Der glatte Leitkörper dient dem offen geführten Faden oder Garn als Stütze. Da der Faden auf den Leitkörper nicht in zahlreichen Windungen aufgewickelt ist, sondern nur an wenigen Stellen lose aufliegt, ist die Bremswirkung des Leitkörpers auf den bewegten Faden so gering, daß sie in Kauf genommen werden kann.The smooth guide body serves as a support for the open thread. Since the thread on the guide body is not in numerous turns is wound, but only loosely rests in a few places, the braking effect of the guide body on the moving thread is so low that it can be accepted.

Vorteilhafterweise kann parallel zu jeder Fadenführerschiene mindestens ein Leitkörper in Form eines gespannten Drahtes geführt werden kann. Zweckmäßig werden hierbei unterhalb der Fadenführerschiene in den Bereichen zwischen den Fadenführerarmen jeweils mehrere gespannte Drähte als Leitkörper mit Abstand voneinander angeordnet, die sich über die ganze aktive Länge der Nadelbetten erstrecken. Die Drähte können vorteilhafterweise durch Spannfedern dauernd unter Zug gehalten werden, wodurch sich auch alterungsbedingte Verlängerungen solcher Drähte, beispielsweise Kunststoffdrähte, ausgleichen lassen.At least one guide body in the form of a tensioned wire can advantageously be guided parallel to each thread guide rail. Appropriately, several tensioned wires are arranged as guide bodies at a distance from each other below the thread guide rail in the areas between the thread guide arms, which extend over the entire active length of the needle beds. The wires can advantageously be kept permanently under tension by tension springs, as a result of which age-related extensions of such wires, for example plastic wires, can also be compensated for.

Nachfolgend wird eine Ausführungsbeispiel eines Fadenführerelementes gemäß der Erfindung für eine Flachstrickmaschine anhand der beiliegenden Zeichnung näher beschrieben.An embodiment of a thread guide element according to the invention for a flat knitting machine is described in more detail below with reference to the accompanying drawing.

Im einzelnen zeigen:

Fig. 1
ein Ausführungsbeispiel eines Fadenführungselementes in Form eines gespannten Drahtes;
Fig. 2
eine schematische Vorderansicht einer Flachstrickmaschine mit erfindungsgemäß ausgebildeten Fadenführungselementen;
Fig. 3
eine gegenüber Fig. 2 vergrößerte Teildarstellung des einen Endbereiches einer Fadenführerschiene einer Flachstrickmaschine;
Fig. 4
einen Schnitt durch die Fadenführeranordnung der Flachstrickmaschine entlang der Linie IV-IV in Fig. 3.
In detail show:
Fig. 1
an embodiment of a thread guide element in the form of a tensioned wire;
Fig. 2
is a schematic front view of a flat knitting machine with thread guide elements designed according to the invention;
Fig. 3
a partial view of an enlarged end portion of a thread guide rail of a flat knitting machine compared to FIG. 2;
Fig. 4
a section through the thread guide arrangement of the flat knitting machine along the line IV-IV in Fig. 3rd

Fig. 1 zeigt einen Leitkörper in Form eines gespannten Drahtes 15, um welchen ein bewegter Faden 11 mit wenigen Windungen lose herumgelegt ist, so daß er praktisch nur an wenigen Stellen 14 an dem Draht 15 anliegt.Fig. 1 shows a guide body in the form of a tensioned wire 15, around which a moving thread 11 is loosely laid with a few turns, so that it bears practically only at a few points 14 on the wire 15.

Fig. 2 zeigt eine schematische Vorderansicht einer Flachstrickmaschine 16 mit einem Träger 17 für mindestens ein Nadelbett 18, mit einem Spulenbrett 19 und mit einer oberhalb des Nadelbettes 18 zwischen zwei auf dem Nadelbettträger angeordneten Ständern 21 und 22 verlaufenden Fadenführungsschiene 20. Der Maschinenschlitten 23 ist am linken Ende des Nadelbettes 18 mit seinem die Fadenführerschiene übergreifenden Bügel 24 schematisch dargestellt. Auf der Fadenführerschiene 20 sind zwei Fadenführer 25 und 26 eingezeichnet.
Die Flachstrickmaschine 16 ist für die nicht eingezeichneten Fäden mit Leitkörpern in Form von glatten Drähten 15 versehen, die zwischen den beiden die Fadenführerschienen 20 tragenden Ständern 21 und 22 parallel zu den Fadenführerschienen und unterhalb von ihnen gezogen und mittels einer im Bereich des Ständers 22 eingezeichneten Spannfeder 27 gespanntgehalten sind. Die Drähte 15 dienen den Fäden als Leitkörper auf ihrem im wesentlichen horizontalen Zuleitungsweg, der sich von den Nadelbettenden bis zu den längs der Nadelbetten 18 beweglichen Fadenführern 25 oder 26 erstreckt.Fig. 2 shows a schematic front view of a flat knitting machine 16 with a carrier 17 for at least one needle bed 18, with a spool board 19 and with a thread guide rail 20 extending above the needle bed 18 between two stands 21 and 22 arranged on the needle bed carrier. The machine carriage 23 is at the left end of the needle bed 18 is shown schematically with its bracket 24 spanning the thread guide rail. Two thread guides 25 and 26 are shown on the thread guide rail 20.
The flat knitting machine 16 is provided for the threads, not shown, with guide bodies in the form of smooth wires 15, the thread guide rails between the two 20 supporting stands 21 and 22 are drawn parallel to the thread guide rails and underneath them and are held under tension by means of a tension spring 27 shown in the area of the stand 22. The wires 15 serve the threads as a guide body on their essentially horizontal feed path, which extends from the needle bed ends to the thread guides 25 or 26 movable along the needle beds 18.

Die Fig. 3 und 4 zeigen eine entsprechende Anordnung mehrerer Drähte 15 an einer Flachstrickmaschine, welche drei Fadenführer-Doppelschienen 20/1, 20/2 und 20/3 aufweist, an denen jeweils die Schlitten 25.1 mehrerer Fadenführer 25 gelagert sein können. Jeder Fadenführer weist in bekannter Weise einen sich vom Fadenführerschlitten 25.1 nach unten bis dicht an den Strickbereich der Maschine erstreckenden Fadenführerarm 25.2 auf, der in einem Fadenführernüßchen 25.3 endet. Für jeden Faden ist ein gesonderter Draht 15 als Leitkörper vorgesehen. Gemäß Fig. 4 sind die Drähte 15 unterhalb der Fadenführerschienen 20/1-20/3 zwischen den Fadenführerarmen 25.2 der einzelnen Fadenführer 25 gespannt, wobei ihre Lage durch eine besondere, in Fig. 3 und 4 nur schematisch angedeutete Verankerungsplatte 28 vorgegeben ist. Die Fäden sind analog Fig. 1 jeweils in wenigen Windungen um die Spanndrähte gelegt und werden gemäß Fig. 3 vom Spanndraht weg in eine von zwei seitlichen Fadenleitösen 29 des Fadenführerarmes 25.2 des zugeordneten Fadenführers 25 und von dort weiter zum Fadenführernüßchen 25.3 geleitet. Auf die Fäden wirken in üblicher Weise nicht dargestellte Fadenspannvorrichtungen ein, die auch ein Rückholen des über einen gespannten Draht 15 als Fadenleitkörper geführten Fadens beim Zurückstellen eines Fadenführers 25 bewirken.3 and 4 show a corresponding arrangement of a plurality of wires 15 on a flat knitting machine which has three thread guide double rails 20/1, 20/2 and 20/3, on each of which the carriage 25.1 of a plurality of thread guides 25 can be mounted. In a known manner, each thread guide has a thread guide arm 25.2 which extends from the thread guide carriage 25.1 down to the knitting area of the machine and which ends in a thread guide nut 25.3. A separate wire 15 is provided as a guide body for each thread. 4, the wires 15 are stretched below the thread guide rails 20 / 1-20 / 3 between the thread guide arms 25.2 of the individual thread guides 25, their position being predetermined by a special anchoring plate 28, which is only schematically indicated in FIGS. 3 and 4. The threads are placed in a few turns around the tensioning wires analogously to FIG. 1 and are guided away from the tensioning wire according to FIG. 3 into one of two lateral thread guide eyelets 29 of the thread guide arm 25.2 of the associated thread guide 25 and from there further to the thread guide nut 25.3. On the Threads act in a conventional manner, not shown, thread tensioning devices which also bring back the thread guided over a tensioned wire 15 as a thread guide when a thread guide 25 is reset.

Bei der Verwendung der Fadenführungselemente an Textilmaschinen können in der Regel andere Fadenführungselemente, wie Fadenleitösen, teilweise entfallen.When using the thread guide elements on textile machines, other thread guide elements, such as thread guide eyelets, can generally be omitted in part.

Claims (3)

  1. Flat knitting machine having thread guide rails (20/1-20/3) extending above the needle beds (18), for thread carriers (25) movable along the needle beds and in each case having a thread carrier arm (25.2) for supplying a thread (11) to the region of the needle beds (18), characterized in that there is associated with each thread carrier rail (20/1-20/3) a thread guiding member which comprises a smooth, edge-free wire (15) tensioned parallel to the thread carrier rail (20/1-20/3) and around which the thread (11) is laid helically in known manner with at least one winding.
  2. Flat knitting machine according to Claim 1, characterized in that there are arranged below the thread carrier rails (20/1-20/3) in the regions between the thread carrier arms (25.2) in each case a plurality of tensioned wires (15) as guide bodies, spaced from one another and extending over the entire active length of the needle beds (18).
  3. Flat knitting machine according to Claim 1 or 2, characterized in that the wires (15) are anchored in fixed manner at one end of a needle bed (18) and are anchored resiliently at the other end of the needle bed (18) by the insertion of a tension spring (27).
EP87116375A 1986-12-04 1987-11-06 Thread guiding element for textile machines Expired - Lifetime EP0275385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3641426 1986-12-04
DE19863641426 DE3641426A1 (en) 1986-12-04 1986-12-04 THREAD GUIDE ELEMENT FOR TEXTILE MACHINES

Publications (2)

Publication Number Publication Date
EP0275385A1 EP0275385A1 (en) 1988-07-27
EP0275385B1 true EP0275385B1 (en) 1991-09-18

Family

ID=6315454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116375A Expired - Lifetime EP0275385B1 (en) 1986-12-04 1987-11-06 Thread guiding element for textile machines

Country Status (5)

Country Link
US (1) US4819457A (en)
EP (1) EP0275385B1 (en)
JP (1) JPS63152443A (en)
DE (1) DE3641426A1 (en)
ES (1) ES2025612T3 (en)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
CN102400274A (en) * 2010-09-14 2012-04-04 吴江华利针纺有限公司 Wire leading device
CN102011257A (en) * 2010-12-29 2011-04-13 浙江维格针纺科技有限公司 Knitting method for strong-twist non-elastic single jersey and yarn anti-knotting machine of knitting loom
CN102011266A (en) * 2010-12-29 2011-04-13 浙江维格针纺科技有限公司 Knitting method for heavy twist polyester Roma cloth and yarn knot preventing device for knitting machine
CN102953217A (en) * 2011-08-30 2013-03-06 吴江市洪盛纺织有限公司 Yarn guide frame
CH709607A1 (en) * 2014-05-08 2015-11-13 Rieter Ag Maschf Method for operating a textile machine for the production of roving, as well as textile machine at the moment.
CN108754829A (en) * 2018-08-15 2018-11-06 湖北金犁劳保科技股份有限公司 A kind of main yarn mouth of glove knitting machine
CN110923929B (en) * 2019-12-31 2024-06-25 浙江越发科技集团有限公司 Yarn mouth disc overturning anti-winding device for hosiery machine
CN113512810B (en) * 2021-07-13 2022-09-23 江南大学 Yarn tension self-adjusting flat knitting machine yarn nozzle device

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US356377A (en) * 1887-01-18 Twine guide and tension device for harvesters
US252018A (en) * 1882-01-10 Tension for grain-binders
US1187912A (en) * 1915-10-22 1916-06-20 Lewis T Houghton Tension device.
US1254761A (en) * 1917-03-23 1918-01-29 Elmira Knitting Mills Guide and tension device for removing snarls, kinks, &c, from yarn or thread.
US1467443A (en) * 1920-05-11 1923-09-11 Willcox & Gibbs Sewing Machine Tension-thread guide
US1596095A (en) * 1925-10-08 1926-08-17 David H Gehman Thread-tension device
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US2528171A (en) * 1949-05-21 1950-10-31 Pehlivanian Anthony Twist controller for thread
FR1173780A (en) * 1956-05-08 1959-03-02 Method for moistening plants, in particular tobacco, and apparatus applying this method
CH365311A (en) * 1957-10-15 1962-10-31 Chr Mann Maschinenfabrik Movable guide device for winding cheeses on draw frames or roving machines
DE6925374U (en) * 1969-06-24 1969-11-27 Dornier Gmbh Lindauer THREAD BRAKE FOR TEXTILE MACHINERY
DE2263569A1 (en) * 1972-12-27 1974-07-04 Rainer Kotte Textilmaschinenzu Yarn brake cylinder and tension control - with coil spring to hold upper tension limit and give backlash to take up any slack
IT1037710B (en) * 1975-04-29 1979-11-20 Zamark Srl YARN GUIDING DEVICE FOR STRAIGHT KNITTING MACHINES
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DE3617991A1 (en) * 1986-05-28 1987-12-03 Stoll & Co H THREAD TENSION REGULATOR FOR KNITTING MACHINES

Also Published As

Publication number Publication date
JPS63152443A (en) 1988-06-24
DE3641426A1 (en) 1988-06-09
ES2025612T3 (en) 1992-04-01
EP0275385A1 (en) 1988-07-27
US4819457A (en) 1989-04-11

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