EP3617357B1 - Warp knitting needle and method for producing a warp knitted net - Google Patents
Warp knitting needle and method for producing a warp knitted net Download PDFInfo
- Publication number
- EP3617357B1 EP3617357B1 EP19200154.3A EP19200154A EP3617357B1 EP 3617357 B1 EP3617357 B1 EP 3617357B1 EP 19200154 A EP19200154 A EP 19200154A EP 3617357 B1 EP3617357 B1 EP 3617357B1
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- EP
- European Patent Office
- Prior art keywords
- diameter
- needle
- warp knitting
- warp
- knitting needle
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- 238000009940 knitting Methods 0.000 title claims description 86
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 230000007704 transition Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/06—Needle bars; Sinker bars
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
- D04B35/06—Sliding-tongue needles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
- D04B35/08—Spring or bearded needles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
- D04B35/04—Latch needles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B37/00—Auxiliary apparatus or devices for use with knitting machines
- D04B37/06—Auxiliary apparatus or devices for use with knitting machines with warp knitting machines
Definitions
- the invention relates to a knitting needle for a warp knitting machine with a shaft and with a needle hook, the needle hook forming a catching space for catching a warp thread, the needle hook having a stem section adjoining the stem, a transition section adjoining the trunk section and an end section adjoining the transition section wherein a first interface between the shaft and the stem portion of the needle hook lies in a first plane, wherein a second interface between the stem portion of the needle hook and the transition portion of the needle hook lies in a second plane, a third interface between the transition portion of the needle hook and the end section of the needle hook lies in the second plane, wherein the first plane is oriented perpendicular to a longitudinal axis of the knitting needle and is tangent to the end section, and wherein the second plane is oriented perpendicular to the longitudinal axis of the knitting needle and a P.
- rofilkurve is tangent, which in a profile view of the knitting needle runs between the catching space and the needle hook, the end section having a first diameter which forms a maximum diameter of the end section, the transition section having a second diameter which forms a minimum diameter of the transition section, and wherein the second diameter is at least 1.3 times as large as the first diameter.
- Knitting needles are used to form loops in warp knitting machines.
- Warp knitting machines have knitting tools that process the warp threads in a knitting process into a textile surface, a so-called knitted fabric. Since a large number of knitting tools can be moved simultaneously by means of a bar, a large number of stitches are created in the knitting process formed at the same time.
- Common knitting tools include knitting needles and guide needles. The guide needles feed the warp threads to the knitting needles, while the knitting needles catch the warp threads and cause the loop formation.
- Warp knitting machines with a relatively coarse needle pitch are used in the manufacture of knitted nets. This means that the distances between adjacent knitting needles are relatively large.
- Inferior warp threads are often used that have flaws.
- the flaws can be, for example, thick places, thin places, hard places or knots.
- the warp thread In the area of a thick point or a knot, the warp thread can, for example, have a thread thickness that is threefold. The thread thickness of the warp thread is reduced in the area of a thin point. In the area of a hard spot, the warp thread is not limp.
- the pamphlet US 761 831 A describes a point needle. This has a reinforced end section to make it more resistant.
- the pamphlet DE 30 36 309 A1 describes compound needles whose hooks are designed differently. This results in different tee depths and, accordingly, different mesh sizes.
- the pamphlet U.S. 2,685,787 A describes a reinforced needle that is also suitable for use at increased machine speed.
- the pamphlet US 2010/229605 A1 describes a tulle fabric. This is particularly robust because it has several interlining threads per wale.
- the invention is therefore based on the object of providing a knitting needle which withstands continuous loads even when used with warp threads of inferior thread quality and is suitable for the production of various types of knitted fabrics, including netting.
- the object is achieved by providing a knitting needle of the type described at the outset, with a trap chamber depth of the trap chamber, which is defined by a distance between the first plane and the second plane, being at least as great as the second diameter.
- knitting needles of this type are particularly resilient due to the reinforced transition section.
- the diameter of the transition section falls below the second diameter according to the invention not.
- An undesired bending up of the knitting needle and thus an expansion of the catching space is avoided by the increased material thickness in the transition section.
- the trap area has a depth that may be necessary for some layings. This minimum depth may be required, especially when producing some types of knitted mesh.
- the first level and the second level are imaginary levels which allow the needle hook to be subdivided into the stem section, the transition section and the end section.
- the respective interfaces between these sections of the needle hook lie in the first and in the second plane.
- the subdivision is preferably merely an imaginary subdivision of the needle hook and the needle hook is formed in one piece.
- the profile curve is preferably an imaginary curve which, in a profile view of the needle hook, lies between the catching space and the needle hook.
- the longitudinal axis of the knitting needle can be an imaginary longitudinal axis. According to the invention, the longitudinal axis can be aligned parallel to a longitudinal direction of the knitting needle.
- the first diameter can be determined by determining a longest possible chord which connects two points of a surface of the end section with one another, which intersects a profile center line of the needle hook and which forms a right angle with the profile center line.
- the profile center line is an imaginary line that follows a curvature of the needle hook and runs centrally in the needle hook.
- the second diameter can be determined by determining a longest possible chord which connects two points of a surface of the transition section with one another, which intersects the profile center line of the needle hook and which forms a right angle with the profile center line.
- the second diameter is preferably at least 1.4 times as large as the first diameter. This leads to an additional reinforcement of the needle hook. This has proven to be useful in particular with particularly strong tensile forces that the warp thread exerts on the needle hook in a direction parallel to the longitudinal axis of the knitting needle.
- the second diameter is preferably at most twice as large as the first diameter. If the diameter exceeds this, there are no significant reinforcement effects that would be of importance in the knitting process. In addition, the material consumption and the weight of the knitting needle increase, which should be avoided.
- the second diameter is at least 0.5 mm. With this minimum diameter, the previously described reinforcement effects. It is particularly advantageous if the second diameter is at most 0.8 mm.
- the trunk section has a third diameter which forms a minimum diameter of the trunk section, the third diameter being at least 1.3 times as large as the first diameter. This leads to a reinforcement of the needle hook against forces in a direction transverse to the longitudinal axis of the knitting needle. It is particularly preferred if the third diameter is at least 1.4 times as large as the first diameter. The needle hook is thus reinforced extremely well.
- the third diameter can be determined by determining a longest possible chord which connects two points of a surface of the stem section with one another, which intersects a profile center line of the needle hook and which forms a right angle with the profile center line.
- a trap area access width of the trap area which is defined by a distance between the trunk section and the end section of the needle hook at a height of the first level, is at least as large as the first diameter. This defines a minimum width of the trap area in an opening area of the trap area. This minimum width of the catch space in the opening area makes it easier to catch the warp thread and may be necessary in some knitting processes. In particular, this minimum width can be required for the production of knitted meshes.
- the trap area access width is preferably at least as large as the second diameter.
- the knitting needle is preferably made of steel. This leads to a high stability and wear resistance of the knitting needle. According to the invention, however, the knitting needle can also be made of other materials.
- the needle hook has, at least in sections, a circular or an elliptical cross-sectional area.
- the warp thread can then more easily slide along the needle hook.
- the knitting needle is a punched needle.
- the knitting needle can also be produced in a different manner.
- the needle can furthermore be coated.
- a chrome coating can be provided.
- the needle hook preferably has a conical cross section and / or a cross section that tapers towards one end of the needle hook. Particularly preferably, a surface of the needle hook does not have any steps, projections or the like on which a warp thread could get caught.
- the knitting needle is a compound needle.
- the compound needle has a groove in which a slide can be guided.
- the slide enables the trap area to be opened and closed, which is necessary for the formation of the loop.
- the needle according to the invention is a Another type of needle is, for example, a latch needle or a pointed needle.
- the invention also relates to a method for producing a knitted netting by means of a warp knitting machine.
- knitting needles are used for stitch formation in the warp knitting machine, which are designed like the knitting needle according to the invention described above.
- This makes it possible to produce a knitted netting by means of a warp knitting machine without premature damage to the knitting needles due to tensile loading of the knitting needle or other wear effects due to the use of inferior warp threads.
- at least one further knitting tool such as a locating needle, a slide and / or a hold-down device can also participate in the formation of the loop.
- At least one warp thread is used which, in sections, has a thread thickness that is at least three times greater than an average thread thickness of the warp thread.
- the thread thickness which is at least three times greater can be due to a knot or a thick point.
- a thick point is to be understood as a section of a warp thread in which the warp thread is thickened, for example due to irregularities in an extrusion process for producing the warp thread.
- the warp thread used can be a warp thread made of a plastic. However, it is alternatively possible that the warp thread is made of cotton, sheep's wool or some other material.
- a tulle layer is preferably used as the laying in the production of the knitted netting. So is using a first Tulle variant (square), a second tulle variant (satin weave) or a third tulle variant (three-mesh hexagonal tulle) are possible according to the invention. However, other types of tulle can also be used. In addition, it is also possible, in principle, to use other layers with which knitted meshes can be produced. The properties of the textile surface obtained are determined by the respective laying. The person skilled in the art is familiar with these layers, but can produce knitted meshes with these layers according to the method according to the invention with a greatly reduced needle failure rate.
- Fig. 1 shows a schematic representation of the knitting needle 1 according to the invention in a profile view.
- the Knitting needle 1 has a needle hook 2 and a shaft 3.
- An imaginary longitudinal axis 10 of the knitting needle 1 is shown by a dashed line.
- Fig. 2 shows a schematic representation of the needle hook 2 of the knitting needle 1 according to the invention in a profile view.
- the needle hook 2 forms a catching space 4 which can accommodate a warp thread.
- the needle hook 2 is divided into three sections.
- the needle hook 2 has a stem section 5 adjoining the shaft 3, a transition section 6 adjoining the trunk section 5, and an end section 7 adjoining the transition section 6.
- a first interface between the shaft 3 and the stem section 5 of the needle hook 2 lies in a first plane 8.
- a second interface between the stem section 5 of the needle hook 2 and the transition section 6 of the needle hook 2 lies in a second plane 9.
- a third interface between the The transition section 6 of the needle hook 2 and the end section 7 of the needle hook 2 is also located in the second plane 9.
- the viewing direction of the Fig. 2 runs parallel to the first plane 8 and to the second plane 9.
- the first plane 8 and the second plane 9 are represented by dashed lines.
- the first plane 8 is oriented perpendicular to the longitudinal axis 10 of the knitting needle 1.
- the first plane 8 is tangent to a tapering end 11 of the end section 7.
- the second plane 9 is oriented perpendicular to the longitudinal axis 10 of the knitting needle 1 and is tangent to a profile curve 12 which runs between the catching space 4 and the needle hook 2.
- the profile curve 12 is shown at a slight distance from the needle hook 2 only for better visibility. In fact, there is no distance between the profile curve 12 and the needle hook 2 formed, but the needle hook 2 directly adjoins the profile curve 12.
- the end section 7 has a first diameter 13 which forms a maximum diameter of the end section 7.
- the transition section has a second diameter 14 which forms a minimum diameter of the transition section 6.
- the second diameter 14 is more than 1.3 times as large as the first diameter 13.
- the trunk section 5 has a third diameter 15 which forms a minimum diameter of the trunk section 5.
- the third diameter 15 is more than 1.3 times as large as the first diameter 13. This leads to a reinforcement of the needle hook 2 with respect to forces in a direction transverse to the longitudinal axis 10 of the knitting needle 1.
- the trap chamber 4 has a trap chamber depth 16 which is defined by a distance between the first plane 8 and the second plane 9.
- the trap chamber depth 16 is dimensioned such that it is greater than the first diameter 13.
- the trap chamber 4 is therefore suitable for use in the most varied of laying operations.
- the trap area 4 also has a trap area access width 17 which is defined by a distance between the stem section 5 and the end section 7 of the needle hook 2 at a height of the first plane 8.
- the trap area access width 17 is larger than the first diameter 13 of the end section 7. This makes it easier to catch warp threads easily through the trap area 4.
- Fig. 3 shows a further schematic representation of the needle hook 2 in a profile view. It is shown by way of example where the first diameter 13 and the second diameter 14 and the third diameter 15 are located.
- the diameters 13, 14 and 15 each lie on chords which each intersect the profile center line 21 of the needle hook 2 at a right angle and connect two points on a surface of the needle hook 2 with one another.
- the profile center line 21 is represented by a dashed line.
- the profile center line 21 is an imaginary line which follows a curvature of the needle hook 2 and which runs centrally in the needle hook 2.
- the first diameter 13 is dimensioned exclusively within the end section 7.
- the second diameter 14 is dimensioned exclusively within the transition section 6.
- the third diameter 15 is dimensioned exclusively within the trunk section 5.
- Fig. 4 shows a schematic representation of the knitting needle 1 according to the invention in a view from the front, wherein the needle hook 2 and the shaft 3 can be seen. It can be seen that the knitting needle 1 is a compound needle, because the knitting needle 1 has a groove 18 in which a slide can be guided up and down. As a result, the trap space formed by the needle hook 2 can be opened and closed. This is necessary for stitch formation.
- Fig. 5 shows a knitted mesh 19 produced with a lay-up according to a first tulle variant (square)
- Fig. 6 shows a knitted mesh fabric 19 and 19 produced with a lay-up according to a second tulle variant (satin weave)
- Fig. 7 shows a knitted mesh 19 produced with a lay-up according to a third tulle variant (three-mesh hexagonal tulle).
- different properties result in terms of size and the shape of holes 20 in the knitted mesh 19 and the extensibility and stability of the knitted mesh 19.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Knitting Of Fabric (AREA)
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Description
Die Erfindung betrifft eine Wirknadel für eine Kettenwirkmaschine mit einem Schaft und mit einem Nadelhaken, wobei der Nadelhaken einen Fangraum zum Fangen eines Kettfadens bildet, wobei der Nadelhaken einen an den Schaft angrenzenden Stammabschnitt, einen an den Stammabschnitt angrenzenden Übergangsabschnitt und einen an den Übergangsabschnitt angrenzenden Endabschnitt aufweist, wobei eine erste Grenzfläche zwischen dem Schaft und dem Stammabschnitt des Nadelhakens in einer ersten Ebene liegt, wobei eine zweite Grenzfläche zwischen dem Stammabschnitt des Nadelhakens und dem Übergangsabschnitt des Nadelhakens in einer zweiten Ebene liegt, wobei eine dritte Grenzfläche zwischen dem Übergangsabschnitt des Nadelhakens und dem Endabschnitt des Nadelhakens in der zweiten Ebene liegt, wobei die erste Ebene senkrecht zu einer Längsachse der Wirknadel ausgerichtet ist und den Endabschnitt tangiert, und wobei die zweite Ebene senkrecht zu der Längsachse der Wirknadel ausgerichtet ist und eine Profilkurve tangiert, die in einer Profilansicht der Wirknadel zwischen dem Fangraum und dem Nadelhaken verläuft, wobei der Endabschnitt einen ersten Durchmesser aufweist, der einen maximalen Durchmesser des Endabschnitts bildet, wobei der Übergangsabschnitt einen zweiten Durchmesser aufweist, der einen minimalen Durchmesser des Übergangsabschnitts bildet, und wobei der zweite Durchmesser mindestens 1,3 mal so groß ist wie der erste Durchmesser.The invention relates to a knitting needle for a warp knitting machine with a shaft and with a needle hook, the needle hook forming a catching space for catching a warp thread, the needle hook having a stem section adjoining the stem, a transition section adjoining the trunk section and an end section adjoining the transition section wherein a first interface between the shaft and the stem portion of the needle hook lies in a first plane, wherein a second interface between the stem portion of the needle hook and the transition portion of the needle hook lies in a second plane, a third interface between the transition portion of the needle hook and the end section of the needle hook lies in the second plane, wherein the first plane is oriented perpendicular to a longitudinal axis of the knitting needle and is tangent to the end section, and wherein the second plane is oriented perpendicular to the longitudinal axis of the knitting needle and a P. rofilkurve is tangent, which in a profile view of the knitting needle runs between the catching space and the needle hook, the end section having a first diameter which forms a maximum diameter of the end section, the transition section having a second diameter which forms a minimum diameter of the transition section, and wherein the second diameter is at least 1.3 times as large as the first diameter.
Wirknadeln dienen zur Maschenbildung bei Kettenwirkmaschinen. Kettenwirkmaschinen weisen Wirkwerkzeuge auf, die Kettfäden bei einem Wirkprozess zu einer textilen Fläche, einer sogenannten Wirkware, verarbeiten. Da mittels einer Barre eine Vielzahl von Wirkwerkzeugen gleichzeitig bewegt werden kann, werden bei dem Wirkprozess eine Vielzahl von Maschen gleichzeitig gebildet. Zu den gängigen Wirkwerkzeugen zählen Wirknadeln und Legenadeln. Die Legenadeln führen die Kettfäden den Wirknadeln zu, während die Wirknadeln die Kettfäden fangen und die Maschenbildung veranlassen.Knitting needles are used to form loops in warp knitting machines. Warp knitting machines have knitting tools that process the warp threads in a knitting process into a textile surface, a so-called knitted fabric. Since a large number of knitting tools can be moved simultaneously by means of a bar, a large number of stitches are created in the knitting process formed at the same time. Common knitting tools include knitting needles and guide needles. The guide needles feed the warp threads to the knitting needles, while the knitting needles catch the warp threads and cause the loop formation.
Durch die Technik des Kettenwirkens kann eine Vielzahl von unterschiedlichen Textilmaterialien hergestellt werden. Unter anderem ist es möglich, Netzgewirke herzustellen. Diese können als Grundmaterialien für Insektenschutznetze, Sonnenschutznetze und dergleichen dienen. Dabei sind die Wirknadeln sehr großen Kräften ausgesetzt, was auf lange Sicht zu einer Beschädigung der Wirknadeln führen kann.Using the technique of warp knitting, a large number of different textile materials can be produced. Among other things, it is possible to produce knitted mesh. These can serve as basic materials for insect protection nets, sun protection nets and the like. The knitting needles are exposed to very great forces, which in the long term can lead to damage to the knitting needles.
Bei der Herstellung von Netzgewirken werden Kettenwirkautomaten mit einer relativ groben Nadelteilung eingesetzt. Dies bedeutet, dass Abstände zwischen benachbarten Wirknadeln relativ groß sind. Es werden häufig geringwertige Kettfäden eingesetzt, die Fehlstellen aufweisen. Bei den Fehlstellen kann es sich beispielsweise um Dickstellen, Dünnstellen, Hartstellen oder Knoten handeln. Im Bereich einer Dickstelle oder eines Knotens kann der Kettfaden beispielsweise eine dreifach vergrößerte Fadenstärke aufweisen. Im Bereich einer Dünnstelle ist die Fadenstärke des Kettfadens reduziert. Im Bereich einer Hartstelle ist der Kettfaden nicht biegeschlaff. Außerdem können beim Schären von Teilkettbäumen zur Bereitstellung der Kettfäden Fehler durch Klemmstellen beim Ablauf der Kettfäden hinzukommen, da der Schärvorgang häufig eine geringe Prozessqualität aufweist. Die Fehlstellen müssen durch die Wirkelemente geführt werden und können insbesondere die Wirknadeln stark belasten. Wirknadeln werden insbesondere durch Hartstellen besonders stark belastet, da die Nadelhaken der Wirknadeln teilweise große Umformkräfte auf die Hartstellen ausüben müssen, sodass die Hartstellen die Wirknadeln passieren können.Warp knitting machines with a relatively coarse needle pitch are used in the manufacture of knitted nets. This means that the distances between adjacent knitting needles are relatively large. Inferior warp threads are often used that have flaws. The flaws can be, for example, thick places, thin places, hard places or knots. In the area of a thick point or a knot, the warp thread can, for example, have a thread thickness that is threefold. The thread thickness of the warp thread is reduced in the area of a thin point. In the area of a hard spot, the warp thread is not limp. In addition, when warping partial warp beams to provide the warp threads, there may be errors due to jamming points when the warp threads run off, since the warping process often has a poor process quality. The flaws must be passed through the knitting elements and can particularly stress the knitting needles. Knitting needles are particularly heavily stressed by hard spots, since the needle hooks of the knitting needles sometimes have to exert great deformation forces on the hard spots so that the hard spots can pass the knitting needles.
Die Druckschrift
Der Erfindung liegt deshalb die Aufgabe zu Grunde, eine Wirknadel bereitzustellen, die Dauerbelastungen auch bei Verwendung mit Kettfäden einer minderwertigen Fadenqualität standhält und für die Herstellung verschiedenartiger Gewirke, unter anderem von Netzgewirken, geeignet ist.The invention is therefore based on the object of providing a knitting needle which withstands continuous loads even when used with warp threads of inferior thread quality and is suitable for the production of various types of knitted fabrics, including netting.
Die Aufgabe wird gelöst durch die Bereitstellung einer Wirknadel der eingangs beschriebenen Art, wobei eine Fangraumtiefe des Fangraums, die durch einen Abstand zwischen der ersten Ebene und der zweiten Ebene definiert wird, mindestens so groß ist wie der zweite Durchmesser. Wie sich herausgestellt hat, sind Wirknadeln dieser Art aufgrund des verstärkten Übergangsabschnitts besonders stark belastbar. Der Durchmesser des Übergangsabschnitts unterschreitet den zweiten Durchmesser erfindungsgemäß nicht. Ein unerwünschtes Aufbiegen der Wirknadel und damit eine Aufweitung des Fangraums wird durch die gesteigerte Materialdicke im Übergangsabschnitt vermieden. Der Fangraum weist eine Tiefe auf, die bei einigen Legungen erforderlich sein kann. Insbesondere bei der Herstellung von einigen Arten von Netzgewirken kann diese Mindesttiefe erforderlich sein.The object is achieved by providing a knitting needle of the type described at the outset, with a trap chamber depth of the trap chamber, which is defined by a distance between the first plane and the second plane, being at least as great as the second diameter. As has been found, knitting needles of this type are particularly resilient due to the reinforced transition section. The diameter of the transition section falls below the second diameter according to the invention not. An undesired bending up of the knitting needle and thus an expansion of the catching space is avoided by the increased material thickness in the transition section. The trap area has a depth that may be necessary for some layings. This minimum depth may be required, especially when producing some types of knitted mesh.
Bei der ersten Ebene und der zweiten Ebene handelt es sich erfindungsgemäß um gedachte Ebenen, die eine Unterteilung des Nadelhakens in den Stammabschnitt, den Übergangsabschnitt und den Endabschnitt erlauben. Die jeweiligen Grenzflächen zwischen diesen Abschnitten des Nadelhakens liegen in der ersten beziehungsweise in der zweiten Ebene. Bevorzugt handelt es sich bei der Unterteilung lediglich um eine gedachte Unterteilung des Nadelhakens und der Nadelhaken ist einstückig ausgebildet. Bei der Profilkurve handelt es sich bevorzugt um eine gedachte Kurve, die in einer Profilansicht des Nadelhakens zwischen dem Fangraum und dem Nadelhaken liegt.According to the invention, the first level and the second level are imaginary levels which allow the needle hook to be subdivided into the stem section, the transition section and the end section. The respective interfaces between these sections of the needle hook lie in the first and in the second plane. The subdivision is preferably merely an imaginary subdivision of the needle hook and the needle hook is formed in one piece. The profile curve is preferably an imaginary curve which, in a profile view of the needle hook, lies between the catching space and the needle hook.
Bei der Längsachse der Wirknadel kann es sich erfindungsgemäß um eine gedachte Längsachse handeln. Die Längsachse kann erfindungsgemäß parallel zu einer Längsrichtung der Wirknadel ausgerichtet sein.According to the invention, the longitudinal axis of the knitting needle can be an imaginary longitudinal axis. According to the invention, the longitudinal axis can be aligned parallel to a longitudinal direction of the knitting needle.
Der erste Durchmesser kann bestimmt werden, indem eine längstmögliche Sehne ermittelt wird, die zwei Punkte einer Oberfläche des Endabschnitts miteinander verbindet, die eine Profilmittellinie des Nadelhakens schneidet und die mit der Profilmittellinie einen rechten Winkel einschließt. Bei der Profilmittellinie handelt es sich um eine gedachte Linie, die einer Krümmung des Nadelhakens folgt und die in dem Nadelhaken mittig verläuft. Der zweite Durchmesser kann bestimmt werden, indem eine längstmögliche Sehne ermittelt wird, die zwei Punkte einer Oberfläche des Übergangsabschnitts miteinander verbindet, die die Profilmittellinie des Nadelhakens schneidet und die mit der Profilmittellinie einen rechten Winkel einschließt.The first diameter can be determined by determining a longest possible chord which connects two points of a surface of the end section with one another, which intersects a profile center line of the needle hook and which forms a right angle with the profile center line. The profile center line is an imaginary line that follows a curvature of the needle hook and runs centrally in the needle hook. The second diameter can be determined by determining a longest possible chord which connects two points of a surface of the transition section with one another, which intersects the profile center line of the needle hook and which forms a right angle with the profile center line.
Vorzugsweise ist der zweite Durchmesser mindestens 1,4 mal so groß wie der erste Durchmesser. Dies führt zu einer zusätzlichen Verstärkung des Nadelhakens. Insbesondere bei besonders starken Zugkräften, die der Kettfaden in einer Richtung parallel zu der Längsachse der Wirknadel auf den Nadelhaken ausübt, hat sich dies als sinnvoll erwiesen.The second diameter is preferably at least 1.4 times as large as the first diameter. This leads to an additional reinforcement of the needle hook. This has proven to be useful in particular with particularly strong tensile forces that the warp thread exerts on the needle hook in a direction parallel to the longitudinal axis of the knitting needle.
Bevorzugt ist der zweite Durchmesser höchstens doppelt so groß wie der erste Durchmesser. Bei einem darüber hinausgehenden Durchmesser stellen sich keine nennenswerten Verstärkungseffekte ein, die bei dem Wirkprozess von Bedeutung wären. Darüber hinaus steigen der Materialverbrauch und das Gewicht der Wirknadel an, was vermieden werden sollte.The second diameter is preferably at most twice as large as the first diameter. If the diameter exceeds this, there are no significant reinforcement effects that would be of importance in the knitting process. In addition, the material consumption and the weight of the knitting needle increase, which should be avoided.
Es ist vorteilhaft, wenn der zweite Durchmesser mindestens 0,5 mm beträgt. Bei diesem Mindestdurchmesser stellen sich die vorangehend beschriebenen Verstärkungseffekte ein. Es ist besonders vorteilhaft, wenn der zweite Durchmesser höchstens 0,8 mm beträgt.It is advantageous if the second diameter is at least 0.5 mm. With this minimum diameter, the previously described reinforcement effects. It is particularly advantageous if the second diameter is at most 0.8 mm.
Es ist bevorzugt, wenn der Stammabschnitt einen dritten Durchmesser aufweist, der einen minimalen Durchmesser des Stammabschnitts bildet, wobei der dritte Durchmesser mindestens 1,3 mal so groß ist wie der erste Durchmesser. Dies führt zu einer Verstärkung des Nadelhakens gegenüber Kräften in einer Richtung quer zu der Längsachse der Wirknadel. Es ist besonders bevorzugt, wenn der dritte Durchmesser mindestens 1,4 mal so groß ist wie der erste Durchmesser. Der Nadelhaken wird somit außerordentlich gut verstärkt. Der dritte Durchmesser kann bestimmt werden, indem eine längstmögliche Sehne ermittelt wird, die zwei Punkte einer Oberfläche des Stammabschnitts miteinander verbindet, die eine Profilmittellinie des Nadelhakens schneidet und die mit der Profilmittellinie einen rechten Winkel einschließt.It is preferred if the trunk section has a third diameter which forms a minimum diameter of the trunk section, the third diameter being at least 1.3 times as large as the first diameter. This leads to a reinforcement of the needle hook against forces in a direction transverse to the longitudinal axis of the knitting needle. It is particularly preferred if the third diameter is at least 1.4 times as large as the first diameter. The needle hook is thus reinforced extremely well. The third diameter can be determined by determining a longest possible chord which connects two points of a surface of the stem section with one another, which intersects a profile center line of the needle hook and which forms a right angle with the profile center line.
Es kann erfindungsgemäß ferner vorgesehen sein, dass eine Fangraumzugangsbreite des Fangraums, die durch einen Abstand zwischen dem Stammabschnitt und dem Endabschnitt des Nadelhakens auf einer Höhe der ersten Ebene definiert wird, mindestens so groß ist wie der erste Durchmesser. Dadurch wird eine Mindestbreite des Fangraums in einem Öffnungsbereich des Fangraums definiert. Diese Mindestbreite des Fangraums in dem Öffnungsbereich erleichtert es, den Kettfaden zu fangen, und kann bei einigen Wirkverfahren erforderlich sein. Insbesondere kann diese Mindestbreite zur Herstellung von Netzgewirken erforderlich sein. Die Fangraumzugangsbreite ist bevorzugt mindestens so groß wie der zweite Durchmesser.It can further be provided according to the invention that a trap area access width of the trap area, which is defined by a distance between the trunk section and the end section of the needle hook at a height of the first level, is at least as large as the first diameter. This defines a minimum width of the trap area in an opening area of the trap area. This minimum width of the catch space in the opening area makes it easier to catch the warp thread and may be necessary in some knitting processes. In particular, this minimum width can be required for the production of knitted meshes. The trap area access width is preferably at least as large as the second diameter.
Vorzugsweise ist die Wirknadel aus Stahl gefertigt. Dies führt zu einer hohen Stabilität und Verschleißfestigkeit der Wirknadel. Die Wirknadel kann erfindungsgemäß jedoch auch aus anderen Materialien hergestellt sein.The knitting needle is preferably made of steel. This leads to a high stability and wear resistance of the knitting needle. According to the invention, however, the knitting needle can also be made of other materials.
Es ist vorteilhaft, wenn der Nadelhaken zumindest abschnittsweise eine kreisförmige oder eine elliptische Querschnittsfläche aufweist. Der Kettfaden kann dann leichter an dem Nadelhaken entlanggleiten. Es ist außerdem bevorzugt, wenn die Wirknadel eine gestanzte Nadel ist. Die Wirknadel kann alternativ jedoch auch auf eine andere Weise hergestellt sein. Die Nadel kann gemäß einer Ausführungsform ferner beschichtet sein. Erfindungsgemäß kann eine Chrombeschichtung vorgesehen sein. Der Nadelhaken weist bevorzugt einen konischen und/oder einen sich zu einem Ende des Nadelhakens hin verjüngenden Querschnitt auf. Besonders bevorzugt weist eine Oberfläche des Nadelhakens keine Stufen, Vorsprünge oder dergleichen auf, an denen ein Kettfaden hängenbleiben könnte.It is advantageous if the needle hook has, at least in sections, a circular or an elliptical cross-sectional area. The warp thread can then more easily slide along the needle hook. It is also preferred if the knitting needle is a punched needle. Alternatively, however, the knitting needle can also be produced in a different manner. According to one embodiment, the needle can furthermore be coated. According to the invention, a chrome coating can be provided. The needle hook preferably has a conical cross section and / or a cross section that tapers towards one end of the needle hook. Particularly preferably, a surface of the needle hook does not have any steps, projections or the like on which a warp thread could get caught.
Gemäß einer besonderen Ausführungsform der Erfindung ist die Wirknadel eine Schiebernadel. Die Schiebernadel weist eine Nut auf, in der ein Schieber geführt werden kann. Der Schieber ermöglicht es, den Fangraum zu öffnen und zu schließen, was zur Maschenbildung notwendig ist. Es ist erfindungsgemäß jedoch auch möglich, dass die erfindungsgemäße Nadel eine Nadel eines anderen Typs ist, zum Beispiel eine Zungennadel oder eine Spitzennadel.According to a particular embodiment of the invention, the knitting needle is a compound needle. The compound needle has a groove in which a slide can be guided. The slide enables the trap area to be opened and closed, which is necessary for the formation of the loop. According to the invention, however, it is also possible that the needle according to the invention is a Another type of needle is, for example, a latch needle or a pointed needle.
Die Erfindung betrifft ferner ein Verfahren zur Herstellung eines Netzgewirks mittels einer Kettenwirkmaschine. Bei dem erfindungsgemäßen Verfahren werden zur Maschenbildung bei der Kettenwirkmaschine Wirknadeln verwendet, die wie die vorangehend beschriebene, erfindungsgemäße Wirknadel ausgebildet sind. Dies ermöglicht es, ein Netzgewirk mittels einer Kettenwirkmaschine herzustellen, ohne dass es zu einer vorzeitigen Beschädigung der Wirknadeln aufgrund einer Zugbelastung der Wirknadel oder sonstiger Verschleißeffekte aufgrund der Verwendung minderwertiger Kettfäden kommt. Bei der Maschenbildung kann erfindungsgemäß ferner mindestens ein weiteres Wirkwerkzeug wie eine Legenadel, ein Schieber und/oder ein Niederhalter mitwirken.The invention also relates to a method for producing a knitted netting by means of a warp knitting machine. In the method according to the invention, knitting needles are used for stitch formation in the warp knitting machine, which are designed like the knitting needle according to the invention described above. This makes it possible to produce a knitted netting by means of a warp knitting machine without premature damage to the knitting needles due to tensile loading of the knitting needle or other wear effects due to the use of inferior warp threads. According to the invention, at least one further knitting tool such as a locating needle, a slide and / or a hold-down device can also participate in the formation of the loop.
Gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens wird mindestens ein Kettfaden verwendet, der abschnittsweise eine gegenüber einer durchschnittlichen Fadenstärke des Kettfadens mindestens dreimal größere Fadenstärke aufweist. Die mindestens dreimal größere Fadenstärke kann erfindungsgemäß durch einen Knoten oder eine Dickstelle bedingt sein. Unter einer Dickstelle ist ein Abschnitt eines Kettfadens zu verstehen, in dem der Kettfaden aufgedickt ist, beispielsweise aufgrund von Unregelmäßigkeiten bei einem Extrusionsprozess zur Herstellung des Kettfadens. Es kann sich bei dem verwendeten Kettfaden erfindungsgemäß um einen Kettfaden aus einem Kunststoff handeln. Jedoch ist es alternativ möglich, dass der Kettfaden aus Baumwolle, Schafswolle oder einem sonstigen Material hergestellt ist.According to one embodiment of the method according to the invention, at least one warp thread is used which, in sections, has a thread thickness that is at least three times greater than an average thread thickness of the warp thread. According to the invention, the thread thickness which is at least three times greater can be due to a knot or a thick point. A thick point is to be understood as a section of a warp thread in which the warp thread is thickened, for example due to irregularities in an extrusion process for producing the warp thread. According to the invention, the warp thread used can be a warp thread made of a plastic. However, it is alternatively possible that the warp thread is made of cotton, sheep's wool or some other material.
Bevorzugt wird bei der Herstellung des Netzgewirks als Legung eine Tülllegung verwendet. So ist die Verwendung einer ersten Tüllvariante (Viereck), einer zweiten Tüllvariante (Atlasbindung) oder einer dritten Tüllvariante (Drei-Maschen-Sechsecktüll) erfindungsgemäß möglich. Es können aber auch andere Tülllegungen verwendet werden. Darüber hinaus können prinzipiell auch sonstige Legungen verwendet werden, mit denen sich Netzgewirke herstellen lassen. Durch die jeweilige Legung werden Eigenschaften der erhaltenen textilen Fläche bestimmt. Der Fachmann kennt diese Legungen, kann jedoch Netzgewirke mit diesen Legungen gemäß dem erfindungsgemäßen Verfahren mit einer stark verminderten Nadelausfallquote herstellen.A tulle layer is preferably used as the laying in the production of the knitted netting. So is using a first Tulle variant (square), a second tulle variant (satin weave) or a third tulle variant (three-mesh hexagonal tulle) are possible according to the invention. However, other types of tulle can also be used. In addition, it is also possible, in principle, to use other layers with which knitted meshes can be produced. The properties of the textile surface obtained are determined by the respective laying. The person skilled in the art is familiar with these layers, but can produce knitted meshes with these layers according to the method according to the invention with a greatly reduced needle failure rate.
Eine vorteilhafte Ausführungsform der erfindungsgemäßen Wirknadel ist in den Zeichnungen dargestellt. Dabei zeigt:
-
Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Wirknadel in einer Profilansicht, -
Fig. 2 eine schematische Darstellung eines Nadelhakens der erfindungsgemäßen Wirknadel in einer Profilansicht, -
Fig. 3 eine weitere schematische Darstellung des Nadelhakens in einer Profilansicht, -
Fig. 4 eine schematische Darstellung der erfindungsgemäßen Wirknadel in einer Ansicht von vorne, -
Fig. 5 eine schematische Darstellung eines mit einer ersten Tülllegung (Viereck) hergestellten Netzgewirks, -
Fig. 6 eine schematische Darstellung eines mit einer zweiten Tülllegung (Atlasbindung) hergestellten Netzgewirks, und -
Fig. 7 eine schematische Darstellung eines mit einer dritten Tülllegung (Drei-Maschen-Sechsecktüll) hergestellten Netzgewirks.
-
Fig. 1 a schematic representation of a knitting needle according to the invention in a profile view, -
Fig. 2 a schematic representation of a needle hook of the knitting needle according to the invention in a profile view, -
Fig. 3 another schematic representation of the needle hook in a profile view, -
Fig. 4 a schematic representation of the knitting needle according to the invention in a view from the front, -
Fig. 5 a schematic representation of a mesh fabric produced with a first tulle layer (square), -
Fig. 6 a schematic representation of a mesh fabric produced with a second tulle layer (satin weave), and -
Fig. 7 a schematic representation of a knitted mesh fabric produced with a third layer of tulle (three-mesh hexagonal tulle).
Die erste Ebene 8 ist senkrecht zu der Längsachse 10 der Wirknadel 1 ausgerichtet. Die erste Ebene 8 tangiert ein spitz zulaufendes Ende 11 des Endabschnitts 7. Die zweite Ebene 9 ist senkrecht zu der Längsachse 10 der Wirknadel 1 ausgerichtet und tangiert eine Profilkurve 12, die zwischen dem Fangraum 4 und dem Nadelhaken 2 verläuft. Lediglich zur besseren Erkennbarkeit ist die Profilkurve 12 ein wenig beabstandet von dem Nadelhaken 2 dargestellt. Tatsächlich wird zwischen der Profilkurve 12 und dem Nadelhaken 2 kein Abstand gebildet, sondern der Nadelhaken 2 grenzt unmittelbar an die Profilkurve 12 an.The
Der Endabschnitt 7 weist einen ersten Durchmesser 13 auf, der einen maximalen Durchmesser des Endabschnitts 7 bildet. Der Übergangsabschnitt weist einen zweiten Durchmesser 14 auf, der einen minimalen Durchmesser des Übergangsabschnitts 6 bildet. Der zweite Durchmesser 14 ist mehr als 1,3 mal so groß wie der erste Durchmesser 13. Der Nadelhaken 2 ist somit besonders stabil und wird selbst bei einer Dauerbelastung durch einen Kettfaden mit hohen Zugkräften nicht beschädigt.The
Der Stammabschnitt 5 weist einen dritten Durchmesser 15 auf, der einen minimalen Durchmesser des Stammabschnitts 5 bildet. Der dritte Durchmesser 15 ist mehr als 1,3 mal so groß wie der erste Durchmesser 13. Dies führt zu einer Verstärkung des Nadelhakens 2 gegenüber Kräften in einer Richtung quer zu der Längsachse 10 der Wirknadel 1.The
Der Fangraum 4 weist eine Fangraumtiefe 16 auf, die durch einen Abstand zwischen der ersten Ebene 8 und der zweiten Ebene 9 definiert wird. Die Fangraumtiefe 16 ist so bemessen, dass sie größer ist als der erste Durchmesser 13. Der Fangraum 4 ist somit für die Verwendung bei verschiedensten Legungen geeignet. Der Fangraum 4 weist ferner eine Fangraumzugangsbreite 17 auf, die durch einen Abstand zwischen dem Stammabschnitt 5 und dem Endabschnitt 7 des Nadelhakens 2 auf einer Höhe der ersten Ebene 8 definiert wird. Die Fangraumzugangsbreite 17 ist größer als der erste Durchmesser 13 des Endabschnitts 7. Die erleichtert ein einfaches Fangen von Kettfäden durch den Fangraum 4.The
- 1. Wirknadel1. Knitting needle
- 2. Nadelhaken2. Needle hook
- 3. Schaft3. Shank
- 4. Fangraum4. Trapping area
- 5. Stammabschnitt5th trunk section
- 6. Übergangsabschnitt6th transition section
- 7. Endabschnitt7th end section
- 8. Erste Ebene8. First level
- 9. Zweite Ebene9. Second level
- 10. Längsachse10. Longitudinal axis
- 11. Ende11th end
- 12. Profilkurve12. Profile curve
- 13. Erster Durchmesser13. First diameter
- 14. Zweiter Durchmesser14. Second diameter
- 15. Dritter Durchmesser15. Third diameter
- 16. Fangraumtiefe16. Catch depth
- 17. Fangraumzugangsbreite17. Catch access width
- 18. Nut18. Groove
- 19. Netzgewirk19. Knitted mesh
- 20. Loch20th hole
- 21. Profilmittellinie21. Profile center line
Claims (13)
- Warp knitting needle (1) for a warp knitting machine having a shank (3) and having a needle hook (2), wherein the needle hook (2) forms a catch space (4) for catching a warp yarn, wherein the needle hook (2) has a stem portion (5) adjoining on the shank (3), a transition portion (6) adjoining on the stem portion (5), and an end portion (7) adjoining on the transition portion (6), wherein a first interface between the shank (3) and the stem portion (5) of the needle hook (2) lies in a first plane (8), wherein a second interface between the stem portion (5) of the needle hook (2) and the transition portion (6) of the needle hook (2) lies in a second plane (9), wherein a third interface between the transition portion (6) of the needle hook (2) and the end portion (7) of the needle hook (2) lies in the second plane, wherein the first plane (8) is aligned perpendicularly to a longitudinal axis (10) of the warp knitting needle (1) and is tangent to the end portion (7), and wherein the second plane (9) is aligned perpendicularly to the longitudinal axis (10) of the warp knitting needle (1) and is tangent to a profile curve (12) which runs in a profile view of the warp knitting needle (1) between the catch space (4) and the needle hook (2), wherein the end portion (7) has a first diameter (13) which forms a maximum diameter of the end portion (7), wherein the transition portion (6) has a second diameter (14), which forms a minimum diameter of the transition portion (6), and wherein the second diameter (14) is at least 1.3 times as great as the first diameter (13), characterised in that a catch space depth (16) of the catch space (4), which catch space depth is defined by a distance between the first plane (8) and the second plane (9), is at least as great as the second diameter (14).
- Warp knitting needle (1) according to claim 1, characterised in that the second diameter (14) is at least 1.4 times as great as the first diameter (13).
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the second diameter (14) is at most twice as great as the first diameter (13).
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the second diameter (14) is at least 0.5 mm.
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the stem portion (5) has a third diameter (15) which forms a minimum diameter of the stem portion (5), wherein the third diameter (15) is at least 1.3 times as great as the first diameter (13).
- Warp knitting needle (1) according to claim 5, characterised in that the third diameter (15) is at least 1.4 times as great as the first diameter (13).
- Warp knitting needle (1) according to any of the preceding claims, characterised in that a catch space access width (17) of the catch space (14), which catch space access width is defined by a distance between the stem portion (5) and the end portion (7) of the needle hook (2) on a level of the first plane (8), is at least as great as the first diameter (13).
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the warp knitting needle (1) is made of steel.
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the needle hook (2) has at least in portions a circular or an elliptical cross-sectional surface.
- Warp knitting needle (1) according to any of the preceding claims, characterised in that the warp knitting needle (1) is a slide needle.
- Method for producing a warp knitted net (19) by means of a warp knitting machine, characterised in that for stitch formation in the case of the warp knitting machine, warp knitting needles (1) are used which are designed according to the claims 1 to 10.
- Method according to claim 11, characterised in that for producing the warp knitted net (19) at least one warp yarn is used which in portions has a yarn thickness which is at least three times greater than an average yarn thickness of the warp yarn.
- Method according to claim 11 or 12, characterised in that a lapping used in the production of the warp knitted net (19) is a tulle lapping.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP19200154.3A EP3617357B1 (en) | 2019-09-27 | 2019-09-27 | Warp knitting needle and method for producing a warp knitted net |
CN202010036726.6A CN112575441B (en) | 2019-09-27 | 2020-01-14 | Knitting needle |
TW109123034A TWI823014B (en) | 2019-09-27 | 2020-07-08 | Knitting needle and associated method |
KR1020200101284A KR102428183B1 (en) | 2019-09-27 | 2020-08-12 | knitting needle |
Applications Claiming Priority (1)
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EP19200154.3A EP3617357B1 (en) | 2019-09-27 | 2019-09-27 | Warp knitting needle and method for producing a warp knitted net |
Publications (3)
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EP3617357A2 EP3617357A2 (en) | 2020-03-04 |
EP3617357A3 EP3617357A3 (en) | 2020-04-29 |
EP3617357B1 true EP3617357B1 (en) | 2021-08-18 |
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EP (1) | EP3617357B1 (en) |
KR (1) | KR102428183B1 (en) |
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CN113512815B (en) * | 2021-07-16 | 2022-10-18 | 广州市赛德精工科技有限公司 | Groove needle of warp knitting machine |
CN114575028A (en) * | 2022-04-06 | 2022-06-03 | 福建永丰针纺有限公司 | Light and thin breathable sun-blocking fabric and warp knitting production process thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US761831A (en) * | 1903-08-15 | 1904-06-07 | Louis W Groat | Knitting-needle. |
US2685787A (en) * | 1952-01-10 | 1954-08-10 | Kidde Mfg Co Inc | Knitting machine needle |
US4178781A (en) * | 1978-03-06 | 1979-12-18 | The Torrington Company | Knitting needle |
DE3036309C2 (en) * | 1980-09-26 | 1983-02-10 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Knitting needle set for a warp knitting machine |
DE10164550A1 (en) * | 2001-12-18 | 2003-07-10 | Sipra Patent Beteiligung | Needle for knitting or warp knitting machines and knitting machine equipped with them |
GB0719225D0 (en) * | 2007-10-03 | 2007-11-21 | John Heathcoat & Company Ltd | Knitted tulle |
CN204282009U (en) * | 2014-11-28 | 2015-04-22 | 福建信亿机械科技有限公司 | Knit the groove pin of jacquard weave screen cloth processed |
CN105297224B (en) * | 2015-10-28 | 2017-06-27 | 江苏苏丝丝绸股份有限公司 | A kind of low wrap yarn and preparation method thereof of distributing cotton of spun silk |
CN107287755B (en) * | 2017-08-14 | 2018-09-11 | 广州市天海花边有限公司 | The weaving method of multi-bar warp knitting machine |
EP3530790B1 (en) * | 2018-02-23 | 2020-08-26 | KARL MAYER R&D GmbH | Slider needle |
-
2019
- 2019-09-27 EP EP19200154.3A patent/EP3617357B1/en active Active
-
2020
- 2020-01-14 CN CN202010036726.6A patent/CN112575441B/en active Active
- 2020-07-08 TW TW109123034A patent/TWI823014B/en active
- 2020-08-12 KR KR1020200101284A patent/KR102428183B1/en active IP Right Grant
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EP3617357A3 (en) | 2020-04-29 |
KR102428183B1 (en) | 2022-08-01 |
CN112575441B (en) | 2022-12-30 |
CN112575441A (en) | 2021-03-30 |
KR20210037522A (en) | 2021-04-06 |
TW202113186A (en) | 2021-04-01 |
EP3617357A2 (en) | 2020-03-04 |
TWI823014B (en) | 2023-11-21 |
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