[go: up one dir, main page]

EP3904578B1 - Compound needle for knitting machines - Google Patents

Compound needle for knitting machines Download PDF

Info

Publication number
EP3904578B1
EP3904578B1 EP20172077.8A EP20172077A EP3904578B1 EP 3904578 B1 EP3904578 B1 EP 3904578B1 EP 20172077 A EP20172077 A EP 20172077A EP 3904578 B1 EP3904578 B1 EP 3904578B1
Authority
EP
European Patent Office
Prior art keywords
needle
slider
longitudinal direction
hole
compound
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.)
Active
Application number
EP20172077.8A
Other languages
German (de)
French (fr)
Other versions
EP3904578C0 (en
EP3904578A1 (en
Inventor
Marc Johannes STROHMAIER
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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
Priority to EP20172077.8A priority Critical patent/EP3904578B1/en
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to CN202180031719.XA priority patent/CN115398052B/en
Priority to US17/922,009 priority patent/US11891734B2/en
Priority to PCT/EP2021/052525 priority patent/WO2021219261A1/en
Priority to JP2022564819A priority patent/JP7374342B2/en
Priority to KR1020227031088A priority patent/KR102605156B1/en
Priority to TW110109686A priority patent/TW202202684A/en
Publication of EP3904578A1 publication Critical patent/EP3904578A1/en
Application granted granted Critical
Publication of EP3904578B1 publication Critical patent/EP3904578B1/en
Publication of EP3904578C0 publication Critical patent/EP3904578C0/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Definitions

  • Stitch-forming needles In industrial knitting machines, stitch-forming needles of various designs are known. Stitch-forming needles usually comprise a hook and a device that serves to open and close a hook - or the interior of a hook.
  • a special embodiment of stitch-forming needles are multi-part slider needles that comprise at least one needle and one slider, which extend predominantly in a needle longitudinal direction. The slider is adapted to the needle in such a way that it can only move within a predetermined working range during a relative movement between the needle and slider, which serves to form stitches.
  • the working range of the slider is the area in which the slider moves relative to the needle during the knitting process. It is determined by the design of the needle and slider. The relative movement between the slider and needle in the needle longitudinal and/or needle height direction is thus limited.
  • the slider has a beak at its front end that can carry a loop and can open and close the hook through relative movement, whereby different shapes of the beak are known and conceivable.
  • the term "beak” is therefore used functionally in this publication: the part of the slider that closes the hook is the "beak", regardless of its shape.
  • the needle has a fork which comprises at least two fork arms which are offset from one another in the direction of the needle height and run next to one another in the longitudinal direction of the needle. At least one of the fork arms - preferably the lower one - carries the hook of the needle. At least one of the fork arms (often both) serves as a guide element for the slider during the relative movement between the slider and the needle by keeping the slider within its working range.
  • the working range is the area in which the slider can be located relative to the needle during the maximum relative movement between the needle and the slider in the longitudinal and vertical directions of the needle.
  • the slider also has at least one functional element which is operatively connected to the needle and which The slider remains in its working range relative to the needle during the relative movement between the needle and the slider.
  • the GB156405A shows a slider needle, whereby the needle has a recess on the underside that is in operative connection with a U-shaped bent section of a slider.
  • the slider is secured in such a way that it can only move upwards, forwards and backwards within certain limits.
  • the engagement of the U-shaped section in the recess does not limit the downward movement of the slider.
  • the needle does not have a fork.
  • the EP2581480A1 shows a slide needle that has a fork.
  • a recess is arranged between the fork arms of the fork.
  • a curved section of the slide engages in this recess. Contact between the curved section and the boundary surfaces of the recess is intended to initiate a lowering movement in the slide.
  • the curved section is not guided in the fork during a large part of the relative movement between the slide and the needle.
  • a slider needle with a fork is described.
  • the slider has a functional element in the form of a support point at its rear end, which interacts with the needle in such a way that the slider cannot leave its working area by tilting. To do this, the slider grips the needle in the area of the support point over the entire height of the needle.
  • the object of the invention is therefore to provide a slide needle which, while maintaining the installation space, has better properties with regard to its rigidity, strength and service life.
  • a slider needle with the features of the preamble of claim 1, the needle of which additionally has at least one hole into which at least one functional element of the slider engages when the slider is in its working area.
  • a functional element which is in operative connection with the hole of the needle in such a way that it limits the freedom of movement of the slider to its working area relative to the needle - thus preventing the working area from being left at the position of the functional element.
  • An elongated hole that extends as far as possible in the longitudinal direction of the needle is advantageous.
  • the hole has a flat recess in the plane spanned by the longitudinal direction of the needle and the needle height direction, and engages the needle shaft in the needle width direction.
  • the boundary line between the hole and the surface of the needle shaft is closed. It is advantageous, but not necessary, if the surface of the needle shaft has the same position in the needle width direction along this boundary surface.
  • the hole is advantageously an elongated hole that passes through the needle shaft or a groove that only partially passes through the needle shaft in the needle width direction like a blind hole.
  • the groove or elongated hole advantageously has a length that runs largely in the longitudinal direction of the needle. In this way, the shape of the hole can allow the functional element to move relative to the needle in the hole.
  • the extent of the hole in the longitudinal direction of the needle is coordinated with the length of the relative movement between the needle and slider during the knitting process in the longitudinal direction of the needle. It is particularly advantageous if the extent of the hole in the longitudinal direction of the needle is at least equal to or equal to the amount of the maximum relative movement between the needle and the slider in the longitudinal direction of the needle. In this way, the edges of the hole that limit it in the longitudinal direction of the needle can serve as a stop for the functional element and limit the relative movement between the needle and the slider in the knitting process in both directions (maximum position in the direction of the slider tip and/or maximum position in the direction of the needle foot).
  • the upper belt and/or the lower belt of the hole are tapered compared to the other belt or the entire rest of the needle shaft. If this is the case, functional elements that are pressed into the hole in their working position with spring tension can be brought into their working position more easily during assembly via the tapered belt. Furthermore, functional elements can grip the needle shaft at the point of the tapered belt in this way without increasing the installation space of the slide needle (especially in the needle width direction).
  • the maximum cross-sectional area of the lower belt, which runs parallel to the plane spanned by the needle height direction and the needle width direction, is preferably larger than the maximum cross-sectional area of the upper flange in the same plane.
  • the lowest interface of the lower flange is simultaneously the lowest interface of the needle in the needle height direction or runs on the same plane as the lowest interface of the needle.
  • the slider has aprons which, in the position of the slider in its working area, either grip around the needle shaft or slide in a groove in the needle shaft.
  • the material of the slider aprons often has sheet-like properties.
  • a material tab of this kind, which hangs on one of these aprons, can be aligned by a bending process in such a way that it engages in the hole in the needle shaft in the aforementioned operating position.
  • the aprons of the slider should run largely along the plane spanned by the longitudinal direction of the needle and the needle height direction.
  • the bent tab in this design represents the functional element and will point largely in the direction of the needle width.
  • a tab that has at least one notch in the transition to the apron of the slider is particularly advantageous, which enables the tabs to be easily widened for mounting on the needle.
  • at least one functional element can also be designed as a cylindrical pin, with the axis of the cylindrical pin extending in the direction of the needle width. It can be formed from the slider material - i.e. as a single component together with the slider - or attached in any way to a skirt of the slider, to a tab of the same or to another part of the slider. Thermal joining methods, such as spot welding, or positive joining methods, such as riveting, are advantageous.
  • the guide element is therefore usually the part of the slider that engages into the hole in the direction of the needle width.
  • the slider has at least two functional elements.
  • An advantageous way of arranging two such functional elements is to bring them into "opposition" position in their working position to the needle shaft or the hole in the needle shaft.
  • the needle slider is constructed symmetrically at least at the location of the functional elements and that one functional element from each side engages in a hole in the needle in the direction of the needle width.
  • the functional elements are preferably at a height in In this way, this gauge can also be implemented if there is only one through hole in the needle shaft, into which the functional elements then engage from both sides in the needle's longitudinal direction in the opposite direction.
  • Figure 2 shows the needle 1 of the slide needle 13.
  • the needle 1 has a hook 3 with a hook interior 4.
  • the needle 1 has a fork 6 with the fork arms 14 and 15.
  • the hole 7, which has the shape of a long hole.
  • the fork arms 14 and 15 are located in a front needle area 28 of the needle 1, while the hole 7 is located in a rear needle area 29 of the needle 1. In the present case, there is no overlap of the expansion area 34 of the fork 6 and the expansion area 35 of the hole 7 in the needle longitudinal direction x.
  • Figure 2 It also emerges that the lowest boundary surface 37 of the lower flange 9 in the needle height direction y has the same height as the lowest boundary surface 38 of the needle 1 in this direction, or that the needle 1 has a continuous lowest boundary surface, part of which is the lowest boundary surface 37 of the lower flange 9.
  • the needle 1 usually slides along this boundary surface in its needle channel during the knitting process. This feature is advantageous for all embodiments of the invention, since it ensures that the available installation space or working space of the needle 1 is optimally utilized for the stability purposes of the needle 1.
  • the Figure 3 shows the slider 2. This has a beak 5, which can close the hook interior 4 during knitting.
  • the number 11 indicates the carriage area of the slider 2, which in its working position during knitting slides along the underside of the fork arm 14 and/or the top of the fork arm 15.
  • the broken line that delimits the slide 11 from the rest of the slide 2 merely indicates that the slide 11 is made of solid material.
  • the front surface 30 of the working web 33 to the slide interior is also shown in dashed lines to indicate the transition from the aprons 18 to the drive web 33, which is made of solid material.
  • the functional element 8 is delimited by two notches 12 to the apron 18 of the slide 2.
  • the slide 2 also has a slide foot 19, via which the slide 2 receives the power for its movement.
  • Figure 1 shows needle 1 and slider 2 in assembled state.
  • the dashed lines of the Figure 1 are outlines of the needle 1, which are covered by the slider 2.
  • the working area 24 of the slider 2 on the needle 1 is shown by the dashed oval in the Figure 1 indicated: here you will find the arrows 25 and 26, which represent the direction and amount of the relative movement between needle 1 and slider 2 in the needle longitudinal direction x and in the needle height direction y within the working area 24.
  • the relative movements of a generic slider 2 during the knitting process within its working area 24 are complex, but known to the expert and are exemplified in the aforementioned DE 602 07454 T2 ( EP1233093B1 ) described.
  • Figure 4 shows the section AA from Figure 1 and thus shows the different width bo of the upper chord 10 and bu of the lower chord 9.
  • the tab 8 has ends which are bent in the needle width direction z (this creates the radius R) so that they reach into the hole 7.
  • the aprons 18 are connected to the drive web 33 (see also Figure 1 and 3 ).
  • the step 31 of the drive web 33 of the slide 2 and ("further back") the slide foot 19 can be seen.
  • Figure 5 shows a section below the fracture line 32 of a Figure 4 comparable section through a slightly different embodiment of a slide needle 13 according to the invention, the slide 2 of which has tabs 8, each of which carries a cylindrical pin 21. During the assembly movement in the assembly direction 23, with which the slide 2 is brought onto the needle 1, the tabs 8 are spread. The smaller width of the upper flange 10, on which this spreading takes place, facilitates the assembly process.
  • Figure 6 finally shows the same section of the same section through the same embodiment of a slide needle 13 according to the invention as Figure 5 after the slider 2 has reached its final position along the mounting direction 23 and the cylindrical pins 21 have engaged in the hole 7.
  • Figure 7 shows once again the cylindrical pin 21 with its surface 22 in an enlarged detail.
  • the Figures 4 , 5 and 6 also show that the cross-sectional area Ao of the upper flange 10 in the plane spanned by the height y and width coordinates z of the needle 1 is smaller than or equal to the cross-sectional area Au of the lower flange 9 in the plane spanned by the needle height y and needle width direction z of the needle 1. This feature also brings further advantages for all embodiments of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Description

In industriellen Strickmaschinen sind maschenbildende Nadeln unterschiedlicher Ausführungsformen bekannt. Üblicherweise umfassen maschenbildende Nadeln einen Haken und eine Vorrichtung, die der Öffnung und Schließung eines Hakens - bzw. eines Hakeninnenraums - dient. Eine spezielle Ausführungsform maschenbildender Nadeln sind mehrteilige Schiebernadeln, die zumindest eine Nadel und einen Schieber umfassen, welche sich vorwiegend in einer Nadellängsrichtung erstrecken. Der Schieber ist dabei derart an die Nadel angepasst, dass er sich während einer Relativbewegung zwischen Nadel und Schieber, die der Maschenbildung dient, nur innerhalb eines vorgegebenen Arbeitsbereiches bewegen kann. Der Arbeitsbereich des Schiebers ist der Bereich, in dem der Schieber sich während des Strickvorgangs relativ zur Nadel bewegt. Er wird durch die Konstruktion von Nadel und Schieber bestimmt. Die Relativbewegung zwischen Schieber und Nadel in Nadellängs- und/oder Nadelhöhenrichtung ist damit begrenzt. Weiterhin weist der Schieber an seinem vorderen Ende einen Schnabel auf, der eine Masche tragen kann und den Haken durch die Relativbewegung öffnen und schließen kann, wobei unterschiedliche Formen des Schnabels bekannt und denkbar sind. Der Begriff "Schnabel" wird damit in der vorliegenden Druckschrift funktional gebraucht: der Bestandteil des Schiebers, der den Haken schließt ist unabhängig von seiner Form der "Schnabel".In industrial knitting machines, stitch-forming needles of various designs are known. Stitch-forming needles usually comprise a hook and a device that serves to open and close a hook - or the interior of a hook. A special embodiment of stitch-forming needles are multi-part slider needles that comprise at least one needle and one slider, which extend predominantly in a needle longitudinal direction. The slider is adapted to the needle in such a way that it can only move within a predetermined working range during a relative movement between the needle and slider, which serves to form stitches. The working range of the slider is the area in which the slider moves relative to the needle during the knitting process. It is determined by the design of the needle and slider. The relative movement between the slider and needle in the needle longitudinal and/or needle height direction is thus limited. Furthermore, the slider has a beak at its front end that can carry a loop and can open and close the hook through relative movement, whereby different shapes of the beak are known and conceivable. The term "beak" is therefore used functionally in this publication: the part of the slider that closes the hook is the "beak", regardless of its shape.

Die Nadel weist eine Gabel auf, die zumindest zwei Gabelarme umfasst, die in einer Nadelhöhenrichtung gegeneinander versetzt sind und in Nadellängsrichtung nebeneinander verlaufen. Zumindest einer der Gabelarme - bevorzugt der untere - trägt dabei den Haken der Nadel. Mindestens einer der Gabelarme (oft beide) dient dem Schieber als Führungselement bei der Relativbewegung zwischen Schieber und Nadel, indem er den Schieber innerhalb seines Arbeitsbereichs hält. Der Arbeitsbereich ist dabei der Bereich, in dem sich der Schieber bei der maximalen Relativbewegung zwischen Nadel und Schieber in Nadellängs- und Nadelhöhenrichtung relativ zur Nadel befinden kann. Zusätzlich weist auch der Schieber zumindest ein Funktionselement auf, das in Wirkverbindung mit der Nadel steht und den Schieber bei der Relativbewegung zwischen Nadel und Schieber in seinem Arbeitsbereich relativ zur Nadel hält.The needle has a fork which comprises at least two fork arms which are offset from one another in the direction of the needle height and run next to one another in the longitudinal direction of the needle. At least one of the fork arms - preferably the lower one - carries the hook of the needle. At least one of the fork arms (often both) serves as a guide element for the slider during the relative movement between the slider and the needle by keeping the slider within its working range. The working range is the area in which the slider can be located relative to the needle during the maximum relative movement between the needle and the slider in the longitudinal and vertical directions of the needle. In addition, the slider also has at least one functional element which is operatively connected to the needle and which The slider remains in its working range relative to the needle during the relative movement between the needle and the slider.

Die GB156405A zeigt eine Schiebernadel, wobei die Nadel auf der Unterseite eine Ausnehmung hat, die in Wirkverbindung mit einem U-förmig gebogenen Teilbereich eines Schiebers steht. Durch gezielte Auslegung der Länge des U-förmigen Teilbereichs wird der Schieber so gesichert, dass er sich nach oben, nach vorne und nach hinten nur in bestimmten Grenzen bewegen kann. Der Eingriff des U-förmige Teilbereichs in die Ausnehmung begrenzt jedoch nicht die Bewegung des Schiebers nach unten. Weiterhin weist die Nadel keine Gabel auf.The GB156405A shows a slider needle, whereby the needle has a recess on the underside that is in operative connection with a U-shaped bent section of a slider. By specifically designing the length of the U-shaped section, the slider is secured in such a way that it can only move upwards, forwards and backwards within certain limits. However, the engagement of the U-shaped section in the recess does not limit the downward movement of the slider. Furthermore, the needle does not have a fork.

Die EP2581480A1 zeigt eine Schiebernadel, die eine Gabel aufweist. Zwischen den Gabelarmen der Gabel ist eine Ausnehmung angeordnet. Bei der Rückwärtsbewegung des Schiebers relativ zur Nadel in Nadellängsrichtung greift ein gebogener Teilbereich des Schiebers in diese Ausnehmung ein. Durch Kontakt des gebogenen Teilbereichs mit den Grenzflächen der Ausnehmung soll eine Senkbewegung in den Schieber eingeleitet werden. Der gebogene Teilbereich ist jedoch während eines Großteils der Relativbewegung zwischen Schieber und Nadel nicht in der Gabel geführt.The EP2581480A1 shows a slide needle that has a fork. A recess is arranged between the fork arms of the fork. When the slide moves backwards relative to the needle in the longitudinal direction of the needle, a curved section of the slide engages in this recess. Contact between the curved section and the boundary surfaces of the recess is intended to initiate a lowering movement in the slide. However, the curved section is not guided in the fork during a large part of the relative movement between the slide and the needle.

In EP1233093B1 ist eine Schiebernadel mit Gabel beschrieben. Der Schieber weist an seinem hinteren Ende ein Funktionselement in Form eines Auflagepunktes auf, der derart mit der Nadel zusammenwirkt, dass der Schieber seinen Arbeitsbereich nicht durch eine Kippbewegung verlassen kann. Der Schieber umgreift die Nadel hierzu im Bereich des Auflagepunktes über die komplette Nadelhöhe.In EP1233093B1 a slider needle with a fork is described. The slider has a functional element in the form of a support point at its rear end, which interacts with the needle in such a way that the slider cannot leave its working area by tilting. To do this, the slider grips the needle in the area of the support point over the entire height of the needle.

In den vergangenen Jahren haben sich Strickgeschwindigkeiten neuer Strickmaschinen erhöht. Damit sind auch die Anforderungen an die Festigkeit, die Steifigkeit und die Lebensdauer von Schiebernadeln gestiegen.In recent years, knitting speeds on new knitting machines have increased. This has also increased the demands on the strength, rigidity and service life of compound needles.

Die Aufgabe der Erfindung ist es daher, eine Schiebernadel anzugeben, die unter Beibehaltung des Bauraums bessere Eigenschaften hinsichtlich ihrer Steifigkeit, Festigkeit und Lebensdauer aufweist.The object of the invention is therefore to provide a slide needle which, while maintaining the installation space, has better properties with regard to its rigidity, strength and service life.

Die Aufgabe wird erfindungsgemäß durch eine Schiebernadel mit den Merkmalen des Oberbegriffs von Anspruch 1 gelöst, deren Nadel zusätzlich zumindest ein Loch aufweist, in das zumindest ein Funktionselement des Schiebers eingreift, wenn der Schieber in seinem Arbeitsbereich ist. Vorteilhaft ist ein Funktionselement, das derart in Wirkverbindung mit dem Loch der Nadel steht, dass es die Bewegungsfreiheit des Schiebers auf seinen Arbeitsbereich relativ zur Nadel begrenzt - also vermeidet, dass der Arbeitsbereich an der Position des Funktionselements verlassen wird. Vorteilhaft ist ein Langloch, das sich weitestgehend in Nadellängsrichtung erstreckt.The object is achieved according to the invention by a slider needle with the features of the preamble of claim 1, the needle of which additionally has at least one hole into which at least one functional element of the slider engages when the slider is in its working area. A functional element which is in operative connection with the hole of the needle in such a way that it limits the freedom of movement of the slider to its working area relative to the needle - thus preventing the working area from being left at the position of the functional element. An elongated hole that extends as far as possible in the longitudinal direction of the needle is advantageous.

Das Loch hat eine flächige Ausnehmung in der von der Nadellängsrichtung und der Nadelhöhenrichtung aufgespannten Ebene, und greift in der Nadelbreitenrichtung in den Nadelschaft ein. Die Grenzlinie des Loches zu der Oberfläche des Nadelschaftes ist geschlossen. Es ist von Vorteil, aber nicht nötig, wenn die Oberfläche des Nadelschaftes entlang dieser Grenzfläche dieselbe Position in der Nadelbreitenrichtung aufweist. Vorteilhafterweise ist das Loch ein Langloch, das den Nadelschaft durchgreift oder eine Nut, die den Nadelschaft in der Nadelbreitenrichtung eben nur sacklochartig teilweise durchgreift. Vorteilhafterweise haben die Nut oder das Langloch eine Länge, die weitgehend in Nadellängsrichtung verläuft. Auf diese Weise kann die Form des Loches eine Bewegung des Funktionselementes relativ zur Nadel in dem Loch gestatten. Darüber hinaus ergeben sich Vorteile, wenn die Ausdehnung des Loches in der Nadellängsrichtung auf die Länge der Relativbewegung zwischen Nadel und Schieber beim Strickprozess in der Nadellängsrichtung abgestimmt ist. Besonders vorteilhaft ist es, wenn die Ausdehnung des Loches in Nadellängsrichtung mindestens dem Betrag der maximalen Relativbewegung zwischen Nadel und Schieber in Nadellängsrichtung entspricht oder gleich derselben ist. Auf diese Weise können die Ränder des Loches, die dieses in der Nadellängsrichtung begrenzen, als Anschlag für das Funktionselement dienen und die Relativbewegung zwischen Nadel und Schieber im Strickprozess gegebenenfalls gleich in beide Richtungen (Maximalposition in Richtung auf die Schieberspitze und/oder Maximalposition in Richtung auf den Nadelfuß) begrenzen.The hole has a flat recess in the plane spanned by the longitudinal direction of the needle and the needle height direction, and engages the needle shaft in the needle width direction. The boundary line between the hole and the surface of the needle shaft is closed. It is advantageous, but not necessary, if the surface of the needle shaft has the same position in the needle width direction along this boundary surface. The hole is advantageously an elongated hole that passes through the needle shaft or a groove that only partially passes through the needle shaft in the needle width direction like a blind hole. The groove or elongated hole advantageously has a length that runs largely in the longitudinal direction of the needle. In this way, the shape of the hole can allow the functional element to move relative to the needle in the hole. There are also advantages if the extent of the hole in the longitudinal direction of the needle is coordinated with the length of the relative movement between the needle and slider during the knitting process in the longitudinal direction of the needle. It is particularly advantageous if the extent of the hole in the longitudinal direction of the needle is at least equal to or equal to the amount of the maximum relative movement between the needle and the slider in the longitudinal direction of the needle. In this way, the edges of the hole that limit it in the longitudinal direction of the needle can serve as a stop for the functional element and limit the relative movement between the needle and the slider in the knitting process in both directions (maximum position in the direction of the slider tip and/or maximum position in the direction of the needle foot).

Es ist vorteilhaft, wenn der Obergurt und/oder der Untergurt des Loches gegenüber dem jeweils anderen Gurt oder auch dem ganzen Rest des Nadelschaftes verjüngt sind. Wenn dies der Fall ist, können Funktionselemente, die in ihrer Arbeitsposition mit Federspannung in das Loch hineingedrückt werden, bei der Montage über den verjüngten Gurt einfacher in ihre Arbeitsposition hinein gebracht werden. Weiterhin können Funktionselemente auf diese Weise den Nadelschaft an der Stelle des verjüngten Gurtes umgreifen, ohne den Bauraum der Schiebernadel (insbesondere in Nadelbreitenrichtung) zu vergrößern. Die maximale Querschnittsfläche des Untergurtes, die parallel zu der Ebene verläuft, die von der Nadelhöhenrichtung und der Nadelbreitenrichtung aufgespannt wird, ist vorzugsweise größer als die maximale Querschnittsfläche des Obergurtes in derselben Ebene. Darüber hinaus ist es vorteilhaft, wenn die unterste Grenzfläche des Untergurtes gleichzeitig die unterste Grenzfläche der Nadel in der Nadelhöhenrichtung ist oder auf einer Ebene mit der untersten Grenzfläche der Nadel verläuft.It is advantageous if the upper belt and/or the lower belt of the hole are tapered compared to the other belt or the entire rest of the needle shaft. If this is the case, functional elements that are pressed into the hole in their working position with spring tension can be brought into their working position more easily during assembly via the tapered belt. Furthermore, functional elements can grip the needle shaft at the point of the tapered belt in this way without increasing the installation space of the slide needle (especially in the needle width direction). The maximum cross-sectional area of the lower belt, which runs parallel to the plane spanned by the needle height direction and the needle width direction, is preferably larger than the maximum cross-sectional area of the upper flange in the same plane. In addition, it is advantageous if the lowest interface of the lower flange is simultaneously the lowest interface of the needle in the needle height direction or runs on the same plane as the lowest interface of the needle.

Eine vorteilhafte Möglichkeit, zumindest ein Funktionselement bereit zu stellen, besteht in folgender Maßnahme: Der Schieber verfügt über Schürzen, die in der Position des Schiebers in seinem Arbeitsbereich entweder um den Nadelschaft herum greifen oder in einer Nut im Nadelschaft gleiten. Oft hat das Material der Schieberschürzen blechartige Eigenschaften. Eine derartige Materiallasche, die an einer dieser Schürzen hängt, kann durch einen Biegeprozess derart ausgerichtet werden, dass sie in der vorgenannten Betriebsstellung in das Loch im Nadelschaft eingreift. In der Regel dürften die Schürzen des Schiebers weitgehend entlang der Ebene, die von der Nadellängsrichtung und der Nadelhöhenrichtung aufgespannt wird, verlaufen. Die umgebogene Lasche stellt bei dieser Ausführung das Funktionselement dar und wird weitgehend in Nadelbreitenrichtung zeigen. Zwischen der Schürze und der Spitze der Lasche entsteht durch den Biegevorgang ein Radius. Besonders vorteilhaft ist eine Lasche, die im Übergang zur Schürze des Schiebers über zumindest eine Einkerbung verfügt, die eine einfache Aufweitung der Laschen für die Montage an der Nadel ermöglicht. Zumindest ein Funktionselement kann jedoch auch als zylindrischer Zapfen ausgeprägt sein, wobei sich die Achse des zylindrischen Zapfens in Nadelbreitenrichtung erstreckt. Er kann aus dem Schiebermaterial - also als ein einziges Bauteil zusammen mit dem Schieber - geformt sein oder in beliebiger Weise an eine Schürze des Schiebers, an eine Lasche desselben oder einen anderen Bestandteil des Schiebers befestigt sein. Vorteilhaft sind thermische Fügeverfahren, wie Punktschweißverbindungen, oder formschlüssige Fügeverfahren, wie Nietverbindungen. Das Führungselement ist also in der Regel derjenige Bestandteil des Schiebers, der in Nadelbreitenrichung in das Loch hinein greift.An advantageous possibility of providing at least one functional element is the following measure: The slider has aprons which, in the position of the slider in its working area, either grip around the needle shaft or slide in a groove in the needle shaft. The material of the slider aprons often has sheet-like properties. A material tab of this kind, which hangs on one of these aprons, can be aligned by a bending process in such a way that it engages in the hole in the needle shaft in the aforementioned operating position. As a rule, the aprons of the slider should run largely along the plane spanned by the longitudinal direction of the needle and the needle height direction. The bent tab in this design represents the functional element and will point largely in the direction of the needle width. The bending process creates a radius between the apron and the tip of the tab. A tab that has at least one notch in the transition to the apron of the slider is particularly advantageous, which enables the tabs to be easily widened for mounting on the needle. However, at least one functional element can also be designed as a cylindrical pin, with the axis of the cylindrical pin extending in the direction of the needle width. It can be formed from the slider material - i.e. as a single component together with the slider - or attached in any way to a skirt of the slider, to a tab of the same or to another part of the slider. Thermal joining methods, such as spot welding, or positive joining methods, such as riveting, are advantageous. The guide element is therefore usually the part of the slider that engages into the hole in the direction of the needle width.

Des Weiteren ist von Vorteil, wenn der Schieber über zumindest zwei Funktionselemente verfügt. Eine vorteilhafte Art und Weise der Anordnung zweier solche Funktionselemente besteht darin, diese in ihrer Arbeitsstellung zum Nadelschaft bzw. zum Loch im Nadelschaft "in Oppositionsstellung" zu bringen. Damit ist gemeint, dass der Nadelschieber zumindest an der Stelle der Funktionselemente symmetrisch aufgebaut ist und dass je ein Funktionselement von jeweils einer Seite in Nadelbreitenrichtung in ein Loch der Nadel eingreift. Vorzugsweise sind die Funktionselemente auf einer Höhe in Nadellängsrichtung angeordnet. Auf diese Weise lässt sich diese Lehre auch realisieren, wenn nur ein Durchgangsloch im Nadelschaft vorhanden ist, in das die Funktionselemente dann von beiden Seiten in Nadellängsrichtung in umgekehrter Richtung eingreifen.It is also advantageous if the slider has at least two functional elements. An advantageous way of arranging two such functional elements is to bring them into "opposition" position in their working position to the needle shaft or the hole in the needle shaft. This means that the needle slider is constructed symmetrically at least at the location of the functional elements and that one functional element from each side engages in a hole in the needle in the direction of the needle width. The functional elements are preferably at a height in In this way, this gauge can also be implemented if there is only one through hole in the needle shaft, into which the functional elements then engage from both sides in the needle's longitudinal direction in the opposite direction.

Die Anwendung der erfindungsgemäßen Lehre bringt bei Strickmaschinen, deren Strickelemente nicht von den Maschen, sondern von Vorrichtungen der Strickmaschinen über mechanische Elemente wie Nadelfüße angetrieben werden, besondere Vorteile, da sich hier die höhere Stabilität der erfindungsgemäßen Nadeln und Schieber besonders positiv bemerkbar macht.The application of the teaching according to the invention brings particular advantages in knitting machines whose knitting elements are not driven by the stitches but by devices of the knitting machines via mechanical elements such as needle feet, since the higher stability of the needles and sliders according to the invention has a particularly positive effect here.

Vorteilhaft ist es, die Gabel und das Loch in der Nadel derart anzuordnen, dass sich ihre Ausdehnungsbereiche in Nadellängsrichtung nicht überlappen. Besonders vorteilhaft ist es, wenn zwischen dem Ende des Ausdehnungsbereichs der Gabel in Nadellängsrichtung und dem Beginn des Ausdehnungsbereichs des Loches in Nadellängsrichtung ein Abstand besteht. Besonders vorteilhaft ist ein Abstand, der zumindest die gleiche Ausdehnung in Nadellängsrichtung hat, wie die größte Ausdehnung des oberen Gabelarms in Nadelhöhenrichtung. Je größer jedoch dieser Abstand in Nadellängsrichtung ist, desto besser können Kippbewegungen des Schiebers mit dem Funktionselement abgestützt werden.

Fig. 1
Figur 1 zeigt eine Schiebernadel 13 in zusammengesetztem Zustand
Fig. 2
Figur 2 zeigt eine Nadel 1 der Schiebernadel 13 einzeln
Fig. 3
Figur 3 zeigt einen Schieber 2 der Schiebernadel 13 einzeln
Fig. 4
Figur 4 zeigt den Schnitt A-A aus Figur 1
Fig. 5
Figur 5 zeigt einen äquivalenten Schnitt durch ein Ausführungsbeispiel einer erfindungsgemäßen Schiebernadel 13 mit einem zylindrischen Zapfen 21 während der Schieber 2 in Richtung des Pfeiles 23 in seiner Arbeitsposition bewegt wird
Fig. 6
Figur 6 Zeigt den Schnitt aus Figur 5 mit dem Schieber 2 in seiner Arbeitsposition
Fig. 7
Figur 7 ist ein vergrößerter Ausschnitt aus Figur 5
It is advantageous to arrange the fork and the hole in the needle in such a way that their expansion areas in the longitudinal direction of the needle do not overlap. It is particularly advantageous if there is a distance between the end of the expansion area of the fork in the longitudinal direction of the needle and the beginning of the expansion area of the hole in the longitudinal direction of the needle. A distance that has at least the same extent in the longitudinal direction of the needle as the greatest extent of the upper fork arm in the vertical direction of the needle is particularly advantageous. However, the greater this distance in the longitudinal direction of the needle, the better tilting movements of the slider can be supported with the functional element.
Fig. 1
Figure 1 shows a slide needle 13 in assembled state
Fig. 2
Figure 2 shows a needle 1 of the slide needle 13 individually
Fig. 3
Figure 3 shows a slider 2 of the slider needle 13 individually
Fig. 4
Figure 4 shows the section AA from Figure 1
Fig. 5
Figure 5 shows an equivalent section through an embodiment of a slide needle 13 according to the invention with a cylindrical pin 21 while the slide 2 is moved in the direction of the arrow 23 in its working position
Fig. 6
Figure 6 Shows the cut from Figure 5 with the slider 2 in its working position
Fig. 7
Figure 7 is an enlarged section of Figure 5

Figur 2 zeigt die Nadel 1 der Schiebernadel 13. Die Nadel 1 hat einen Haken 3 mit einem Hakeninnenraum 4. Darüber hinaus hat die Nadel 1 eine Gabel 6 mit den Gabelarmen 14 und 15. Im weiteren Verlauf des Nadelschaftes 16 der Nadel 1 in Nadellängsrichtung x in Richtung auf den Nadelfuß 17 befindet sich das Loch 7, das die Form eines Langloches hat. In Figur 2 ist zu sehen, dass die Gabelarme 14 und 15 in einem vorderen Nadelbereich 28 der Nadel 1 zu finden sind, während das Loch 7 sich in einem hinteren Nadelbereich 29 der Nadel 1 befindet. Im vorliegenden Fall gibt es keine Überlappung des Ausdehnungsbereichs 34 der Gabel 6 und des Ausdehnungsbereichs 35 des Loches 7 in Nadellängsrichtung x. Zu erwähnen ist noch, dass die vorliegenden Figuren nicht maßstäblich sind und insbesondere die Abmessungen der Nadel 1 in Nadellängsrichtung x vergleichsweise zu gering darstellen. Daher sei erwähnt, dass es für alle Ausführungsbeispiele der Erfindung vorteilhaft sein kann, wenn zwischen dem Beginn des Ausdehnungsbereichs 34 der Gabelarme 14 und 15 und dem Ausdehnungsbereich 35 des Lochs 7 jeweils in Nadellängsrichtung x keine Überlappung in dieser Richtung besteht. Figure 2 shows the needle 1 of the slide needle 13. The needle 1 has a hook 3 with a hook interior 4. In addition, the needle 1 has a fork 6 with the fork arms 14 and 15. In the further course of the needle shaft 16 of the needle 1 in the needle longitudinal direction x in In the direction of the needle foot 17 is the hole 7, which has the shape of a long hole. In Figure 2 it can be seen that the fork arms 14 and 15 are located in a front needle area 28 of the needle 1, while the hole 7 is located in a rear needle area 29 of the needle 1. In the present case, there is no overlap of the expansion area 34 of the fork 6 and the expansion area 35 of the hole 7 in the needle longitudinal direction x. It should also be mentioned that the present figures are not to scale and in particular the dimensions of the needle 1 in the needle longitudinal direction x are comparatively too small. It should therefore be mentioned that it can be advantageous for all embodiments of the invention if there is no overlap in this direction between the start of the expansion area 34 of the fork arms 14 and 15 and the expansion area 35 of the hole 7 in the needle longitudinal direction x.

Zusätzliche Vorteile ergeben sich bei allen Ausführungsbeispielen der Erfindung, wenn zwischen dem Ausdehnungsbereich 35 des Loches 7 und dem Ausdehnungsbereich 34 der Gabel 6 in Nadellängsrichtung x ein Abstand 20 besteht, die beiden vorgenannten Ausdehnungsbereiche 34 und 35 also beabstandet sind. Dieser Abstand 20 ist in Nadellängsrichtung x vorteilhafterweise mindestens so groß wie die maximale Höhe des oberen Gabelarms 14. Die Figuren 1 und 2 zeigen auch die Kupplung 36 für ein weiteres Steuer- oder Antriebsteil, das dort eingesetzt werden kann. Auf diese Weise soll angedeutet werden, dass sich Nadeln 1 bzw. erfindungsgemäße Schiebernadeln 13 auch hervorragend zum Einsatz in komplexeren Strickmaschinen mit solchen weiteren Steuer- oder Antriebsteilen eignen. Aus Figur 2 geht auch hervor, dass die unterste Grenzfläche 37 des Untergurtes 9 in der Nadelhöhenrichtung y dieselbe Höhe aufweist wie die unterste Grenzfläche 38 der Nadel 1 in dieser Richtung bzw., dass die Nadel 1 eine durchgehende unterste Grenzfläche aufweist, deren Teil die unterste Grenzfläche 37 des Untergurtes 9 ist. Auf dieser Grenzfläche gleitet die Nadel 1 in der Regel während des Strickprozesses in ihrem Nadelkanal. Dieses Merkmal ist für alle Ausführungsbeispiele der Erfindung vorteilhaft, da es bewirkt, dass der zur Verfügung stehende Bauraum bzw. Arbeitsraum der Nadel 1 für die Stabilitätszwecke der Nadel 1 optimal ausgenutzt wird.Additional advantages arise in all embodiments of the invention if there is a distance 20 between the expansion area 35 of the hole 7 and the expansion area 34 of the fork 6 in the needle longitudinal direction x, i.e. the two aforementioned expansion areas 34 and 35 are spaced apart. This distance 20 is advantageously at least as large in the needle longitudinal direction x as the maximum height of the upper fork arm 14. The Figures 1 and 2 also show the coupling 36 for a further control or drive part that can be used there. This is intended to indicate that needles 1 or slider needles 13 according to the invention are also excellently suited for use in more complex knitting machines with such further control or drive parts. Figure 2 It also emerges that the lowest boundary surface 37 of the lower flange 9 in the needle height direction y has the same height as the lowest boundary surface 38 of the needle 1 in this direction, or that the needle 1 has a continuous lowest boundary surface, part of which is the lowest boundary surface 37 of the lower flange 9. The needle 1 usually slides along this boundary surface in its needle channel during the knitting process. This feature is advantageous for all embodiments of the invention, since it ensures that the available installation space or working space of the needle 1 is optimally utilized for the stability purposes of the needle 1.

Die Figur 3 zeigt den Schieber 2. Dieser weist einen Schnabel 5 auf, der im Strickbetrieb den Hakeninnenraum 4 verschließen kann. Mit der Ziffer 11 ist der Schlittenbereich des Schiebers 2, der in seiner Arbeitsposition während des Strickbetriebes an der Unterseite des Gabelarms 14 und/oder der Oberseite des Gabelarms 15 entlang gleitet, bezeichnet. Die unterbrochene Linie, die den Schlitten 11 gegenüber dem Rest des Schiebers 2 abgrenzt, deutet lediglich an, dass der Schlitten 11 aus Vollmaterial besteht. Auch die Frontfläche 30 des Arbeitssteges 33 zum Schieberinnenraum ist gestrichelt dargestellt, um den Übergang von den Schürzen 18 zum Antriebssteg 33, der aus Vollmaterial besteht, anzudeuten. Das Funktionselement 8 wird durch zwei Einkerbungen 12 zu der Schürze 18 des Schiebers 2 begrenzt. Auch der Schieber 2 hat einen Schieberfuß 19, über den der Schieber 2 die Kraft für seine Bewegung erhält. Figur 1 zeigt Nadel 1 und Schieber 2 in zusammengesetztem Zustand. Die gestrichelten Linien der Figur 1 sind Umrisse der Nadel 1, die vom Schieber 2 verdeckt werden. Der Arbeitsbereich 24 des Schiebers 2 auf der Nadel 1 wird durch das gestrichelte Oval in der Figur 1 angedeutet: hier finden sich die Pfeile 25 und 26, die für Richtung und Betrag der Relativbewegung zwischen Nadel 1 und Schieber 2 in der Nadellängsrichtung x und in der Nadelhöhenrichtung y innerhalb des Arbeitsbereiches 24 stehen. Die Relativbewegungen eines gattungsgemäßen Schiebers 2 während des Strickvorganges innerhalb seines Arbeitsbereiches 24 sind komplex, jedoch dem Fachmann bekannt und beispielhaft in der vorerwähnten DE 602 07454 T2 ( EP1233093B1 ) beschrieben.The Figure 3 shows the slider 2. This has a beak 5, which can close the hook interior 4 during knitting. The number 11 indicates the carriage area of the slider 2, which in its working position during knitting slides along the underside of the fork arm 14 and/or the top of the fork arm 15. The broken line that delimits the slide 11 from the rest of the slide 2 merely indicates that the slide 11 is made of solid material. The front surface 30 of the working web 33 to the slide interior is also shown in dashed lines to indicate the transition from the aprons 18 to the drive web 33, which is made of solid material. The functional element 8 is delimited by two notches 12 to the apron 18 of the slide 2. The slide 2 also has a slide foot 19, via which the slide 2 receives the power for its movement. Figure 1 shows needle 1 and slider 2 in assembled state. The dashed lines of the Figure 1 are outlines of the needle 1, which are covered by the slider 2. The working area 24 of the slider 2 on the needle 1 is shown by the dashed oval in the Figure 1 indicated: here you will find the arrows 25 and 26, which represent the direction and amount of the relative movement between needle 1 and slider 2 in the needle longitudinal direction x and in the needle height direction y within the working area 24. The relative movements of a generic slider 2 during the knitting process within its working area 24 are complex, but known to the expert and are exemplified in the aforementioned DE 602 07454 T2 ( EP1233093B1 ) described.

Figur 4 zeigt den Schnitt A-A aus Figur 1 und zeigt damit die unterschiedliche Breite bo des Obergurtes 10 und bu des Untergurtes 9. In Figur 4 ist auch zu erkennen, dass die Lasche 8 Enden besitzt, die derart in der Nadelbreitenrichtung z gebogen sind (dabei entsteht der Radius R), dass sie in das Loch 7 herein greifen. Die Schürzen 18 sind mit dem Antriebssteg 33 verbunden (siehe auch Figur 1 und 3). Im Hintergrund der Schnittebene A-A ist die Stufe 31 des Antriebssteges 33 des Schiebers 2 und ("weiter hinten") der Schieberfuß 19 zu sehen. Zwischen den Schürzen 18 ist auch die Frontfläche 30 des Antriebssteges 33 zum Schieberinnenraum zu sehen, deren gekrümmten Verlauf die Figur 3 zeigt. Die Funktion der geringeren Breite bO des Obergurtes 10 gegenüber der Breite bu des Untergurtes 9 wird auch anhand von Figur 5 deutlich: Figur 5 zeigt einen Ausschnitt unter der Bruchlinie 32 eines zu Figur 4 vergleichbaren Schnitts durch ein etwas anderes Ausführungsbeispiel einer erfindungsgemäßen Schiebernadel 13, deren Schieber 2 Laschen 8 aufweist, die jeweils einen zylindrischen Zapfen 21 tragen. Während der Montagebewegung in der Montagerichtung 23, mit der der Schieber 2 auf die Nadel 1 gebracht wird, werden die Laschen 8 gespreizt. Die geringere Breite des Obergurtes 10, auf dem diese Spreizung stattfindet, erleichtert den Montageprozess. In Figur 5 wird der Montageprozess zusätzlich dadurch erleichtert, dass die Oberfläche 22 des zylindrischen Zapfens 21, die bei der Montagebewegung der Oberfläche des Obergurtes 10 zugewandt ist, gegen die Ebene, die von der Nadellängsrichtung x und der Nadelhöhenrichtung y aufgespannt wird, in seiner Arbeitsposition (siehe Figur 6) um einen Montagewinkel 27 geneigt ist. Figure 4 shows the section AA from Figure 1 and thus shows the different width bo of the upper chord 10 and bu of the lower chord 9. In Figure 4 It can also be seen that the tab 8 has ends which are bent in the needle width direction z (this creates the radius R) so that they reach into the hole 7. The aprons 18 are connected to the drive web 33 (see also Figure 1 and 3 ). In the background of the section plane AA, the step 31 of the drive web 33 of the slide 2 and ("further back") the slide foot 19 can be seen. Between the aprons 18, the front surface 30 of the drive web 33 to the slide interior can also be seen, the curved course of which Figure 3 The function of the smaller width b O of the upper chord 10 compared to the width bu of the lower chord 9 is also shown by Figure 5 clearly: Figure 5 shows a section below the fracture line 32 of a Figure 4 comparable section through a slightly different embodiment of a slide needle 13 according to the invention, the slide 2 of which has tabs 8, each of which carries a cylindrical pin 21. During the assembly movement in the assembly direction 23, with which the slide 2 is brought onto the needle 1, the tabs 8 are spread. The smaller width of the upper flange 10, on which this spreading takes place, facilitates the assembly process. In Figure 5 The assembly process is further facilitated by the fact that the surface 22 of the cylindrical pin 21, which faces the surface of the upper flange 10 during the assembly movement, is directed against the plane formed by the needle longitudinal direction x and the Needle height direction y is clamped in its working position (see Figure 6 ) is inclined by a mounting angle 27.

Figur 6 zeigt schließlich denselben Ausschnitt desselben Schnitts durch dasselbe Ausfiihrungsbeispiel einer erfindungsgemäßen Schiebernadel 13 wie Figur 5 nachdem der Schieber 2 entlang der Montagerichtung 23 seine Endposition erreicht hat und die zylindrischen Zapfen 21 in das Loch 7 eingerastet sind. Figure 6 finally shows the same section of the same section through the same embodiment of a slide needle 13 according to the invention as Figure 5 after the slider 2 has reached its final position along the mounting direction 23 and the cylindrical pins 21 have engaged in the hole 7.

Figur 7 zeigt noch einmal den zylindrischen Zapfen 21 mit seiner Oberfläche 22 in einer vergrößerten Detaildarstellung. Die Figuren 4, 5 und 6 zeigen auch, dass die Querschnittsfläche Ao des Obergurtes 10 in der von den Höhen- y und Breitenkoordinaten z der Nadel 1 aufgespannten Ebene kleiner oder gleich ist wie die Querschnittsfläche Au des Untergurtes 9 in der von der Nadelhöhen- y und Nadelbreitenrichtung z der Nadel 1 aufgespannten Ebene. Auch dieses Merkmal bringt weitere Vorteile für alle Ausführungsbeispiele der Erfindung mit sich. Bezugszeichenliste 1 Nadel 2 Schieber 3 Haken 4 Hakeninnenraum 5 Schnabel des Schiebers 2 6 Gabel der Nadel 1 7 Loch 8 Lasche / Funktionselement 9 Untergurt 10 Obergurt 11 Schlittenbereich des Schiebers 2 12 Einkerbungen in der Schürze 18 des Schiebers 2 13 Schiebernadel 14 Oberer Gabelarm der Nadel 1 15 Unterer Gabelarm der Nadel 1 16 Nadelschaft 17 Nadelfuß 18 Schürze des Schiebers 2 19 Schieberfuß 20 Abstand in Längsrichtung x zwischen der Gabel 6 und dem Loch 7 21 Zylindrischer Zapfen / alternatives Funktionselement 22 Die der Oberfläche des Obergurtes 10 zugewandte Oberfläche des zylindrischen Zapfens 21 23 Pfeil in Montagerichtung des Schiebers 2 24 Arbeitsbereich 25 Maximale Relativbewegung zwischen Nadel 1 und Schieber 2 in Nadellängsrichtung x 26 Maximale Relativbewegung zwischen Nadel 1 und Schieber 2 in Nadelhöhenrichtung y 27 Montagewinkel 28 Vorderer Nadelbereich 29 Hinterer Nadelbereich 30 Frontfläche des Steuer-/Antriebssteges 33 zum Schieberinnenraum 31 Stufe des Steuer-/Antriebssteges 33 32 Bruchlinie 33 Steuer-/Antriebssteg 34 Ausdehnungsbereich der Gabel 6 in Nadellängsrichtung x 35 Ausdehnungsbereich des Loches 7 in Nadellängsrichtung x 36 Kupplung für ein Steuerteil 37 Unterste Grenzfläche des Untergurtes (9) in der Nadelhöhenrichtung y 38 Unterste Grenzfläche der Nadel (1) in der Nadelhöhenrichtung y x Nadellängsrichtung y Nadelhöhenrichtung z Nadelbreitenrichtung bo Breite des Obergurtes (10) in Nadelbreitenrichtung z bu Breite des Untergurtes (9) in Nadelbreitenrichtung z Ao Querschnittsfläche des Obergurtes (10) in der y-z Ebene Au Querschnittsfläche des Untergurtes (9) in der y-z Ebene Figure 7 shows once again the cylindrical pin 21 with its surface 22 in an enlarged detail. The Figures 4 , 5 and 6 also show that the cross-sectional area Ao of the upper flange 10 in the plane spanned by the height y and width coordinates z of the needle 1 is smaller than or equal to the cross-sectional area Au of the lower flange 9 in the plane spanned by the needle height y and needle width direction z of the needle 1. This feature also brings further advantages for all embodiments of the invention. list of reference symbols 1 needle 2 slider 3 Hook 4 hook interior 5 beak of the slider 2 6 fork of needle 1 7 Hole 8 tab / functional element 9 lower chord 10 upper chord 11 slide area of the slider 2 12 Notches in the skirt 18 of the slide 2 13 needle 14 Upper fork arm of needle 1 15 Lower fork arm of needle 1 16 needle shaft 17 needle foot 18 apron of the slide 2 19 slider foot 20 Distance in longitudinal direction x between the fork 6 and the hole 7 21 Cylindrical pin / alternative functional element 22 The surface of the cylindrical pin 21 facing the surface of the upper flange 10 23 Arrow in the mounting direction of the slider 2 24 work area 25 Maximum relative movement between needle 1 and slide 2 in needle longitudinal direction x 26 Maximum relative movement between needle 1 and slider 2 in needle height direction y 27 mounting bracket 28 front needle area 29 rear needle area 30 Front surface of the control/drive bar 33 to the slide interior 31 step of the control/drive bridge 33 32 fault line 33 control/drive bridge 34 Expansion range of the fork 6 in needle longitudinal direction x 35 Expansion area of hole 7 in needle longitudinal direction x 36 coupling for a control unit 37 Lowermost boundary surface of the lower flange (9) in the needle height direction y 38 Lowermost boundary surface of the needle (1) in the needle height direction y x needle longitudinal direction y needle height direction z needle width direction bo Width of the upper belt (10) in needle width direction z bu Width of the lower belt (9) in needle width direction z Ao Cross-sectional area of the upper chord (10) in the yz plane Au Cross-sectional area of the lower flange (9) in the yz plane

Claims (14)

  1. Compound needle (13) for knitting machines, having the following features:
    a) a needle (1), which extends substantially in the needle's longitudinal direction (x) and has a hook (3) at its front end in the needle's longitudinal direction (x),
    b) a slider (2),
    - which also extends substantially in the needle's longitudinal direction (x),
    - which is adapted to the needle (1) in such a way that, within the slider's working portion (24), relative movement between needle (1) and slider (2) is possible
    - and which has a closing lip (5) for closing the hook (3) of the needle (1),
    c) wherein the needle (1) has a fork (6) comprising at least two fork arms (14, 15), which are mutually offset in the needle's height direction (y) and extend beside each other in the needle's longitudinal direction (x),
    d) wherein at least one fork arm (14, 15) is a guiding element for the slider (2) during relative movement between needle (1) and slider (2),
    e) and wherein the slider (2) has at least one functional element (8) which keeps it within its working portion (24) during relative movement between needle (1) and slider (2)
    characterised in that
    f) the needle (1) has at least one hole (7) with which the at least one functional element (8) of the slider (2) engages.
  2. Compound needle (13) according to the preceding claim,
    characterised in that
    the hole (7) is an oblong hole or a groove.
  3. Compound needle (13) according to either of the two preceding claims,
    characterised in that
    the hole (7) extends, in the needle's longitudinal direction (x), for at least a distance which substantially matches the maximum relative movement (25) between the needle (1) and the slider (2) in the needle's longitudinal direction (x).
  4. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the needle (1), at least in an area - the upper belt (10) - lying above the hole (7) in the needle's height direction (y) and/or in an area - the lower belt (9) - lying below the hole (7), is tapered
    - at its widest point in the needle's width direction (z) by at least 1/5 of the width of the other belt in each case (9, 10) or
    - preferably, by at least 1/3 of the width of the other belt in each case (9, 10).
  5. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the at least one functional element (8) is a tab which is attached to a skirt (18) of the slider (2), which embraces the needle, and which is preferably oriented, by means of bending, such that it engages with the hole (7).
  6. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the functional element (8) comprises at least one notch (12).
  7. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the at least one functional element (8) comprises at least one cylindrical stud (21), the axis of said stud (21) extending in the needle's width direction (z).
  8. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the at least one functional element (8) has a surface (22) which, in its operative position, points in the needle's width direction (z) and which is inclined by an assembly angle (27) away from the plane defined by the needle's height direction (y) and the needle's longitudinal direction (x).
  9. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    - the hole (7) is an oblong hole,
    - the slider (2) comprises at least two functional elements (8), which are mutually offset in the needle's width direction (z),
    - and each of the functional elements (8) engages with one of the open sides of the oblong hole (7).
  10. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    during knitting, the needle (1) and/or the slider (2) are driven by knitting-machine devices via mechanical elements, such as needle butts (17) and/or slider butts (19).
  11. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    no overlapping exists, in the needle's longitudinal direction (x), between the portion (34) taken up by the fork (6) in the needle's longitudinal direction (x) and the portion (35) taken up by the hole (7) in the needle's longitudinal direction (x).
  12. Compound needle (13) according to the preceding claim,
    characterised in that,
    between the end of the portion (34) taken up by the fork (6) in the needle's longitudinal direction (x) and the start of the portion (35) taken up by the hole (7) in the needle's longitudinal direction (x), a gap (20) exists, which measures at least as much in the needle's longitudinal direction (x) as the maximum dimension of the upper fork arm (14) in the needle's height direction (y).
  13. Compound needle (13) according to any one of the preceding claims,
    characterised in that
    the undermost bounding surface (37) of the lower belt (9) is the same height, in the needle's height direction (y), as the undermost bounding surface (38) of the needle (1) or is part of this bounding surface (38).
  14. Compound needle (13) according to any one of the preceding claims,
    characterised in that,
    in the plane defined by the height direction (y) and the width direction (z) of the needle (1), the cross-sectional area Ao of the upper belt (10) is smaller or the same as the cross-sectional area (Au) of the lower belt (9) in the plane defined by the height direction (y) and the width direction (z) of the needle (1).
EP20172077.8A 2020-04-29 2020-04-29 Compound needle for knitting machines Active EP3904578B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20172077.8A EP3904578B1 (en) 2020-04-29 2020-04-29 Compound needle for knitting machines
US17/922,009 US11891734B2 (en) 2020-04-29 2021-02-03 Compound needle for knitting machines
PCT/EP2021/052525 WO2021219261A1 (en) 2020-04-29 2021-02-03 Slide needle for knitting machines
JP2022564819A JP7374342B2 (en) 2020-04-29 2021-02-03 Compound needle for knitting machine
CN202180031719.XA CN115398052B (en) 2020-04-29 2021-02-03 Sliding needle for knitting machine
KR1020227031088A KR102605156B1 (en) 2020-04-29 2021-02-03 Compound Needles for Knitting Machines
TW110109686A TW202202684A (en) 2020-04-29 2021-03-18 Compound needles for knitting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20172077.8A EP3904578B1 (en) 2020-04-29 2020-04-29 Compound needle for knitting machines

Publications (3)

Publication Number Publication Date
EP3904578A1 EP3904578A1 (en) 2021-11-03
EP3904578B1 true EP3904578B1 (en) 2024-11-06
EP3904578C0 EP3904578C0 (en) 2024-11-06

Family

ID=70480103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20172077.8A Active EP3904578B1 (en) 2020-04-29 2020-04-29 Compound needle for knitting machines

Country Status (7)

Country Link
US (1) US11891734B2 (en)
EP (1) EP3904578B1 (en)
JP (1) JP7374342B2 (en)
KR (1) KR102605156B1 (en)
CN (1) CN115398052B (en)
TW (1) TW202202684A (en)
WO (1) WO2021219261A1 (en)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435714A (en) * 1922-11-14 Knitting-machine needle
US1435715A (en) * 1922-11-14 Knitting-machine needle
GB156405A (en) * 1919-12-23 1921-01-13 Patrick Philip Lamontagne Knitting machine needle
JPH02464Y2 (en) * 1985-06-28 1990-01-08
JPH07197359A (en) * 1993-12-28 1995-08-01 Etsuzou Sasaki Shuttle compound needle
TW477845B (en) * 1999-10-27 2002-03-01 Shima Seiki Mfg Guide mechanism of knitting member and compound needle assembling the guide mechanism therein
FR2821093B1 (en) 2001-02-20 2003-05-09 Steiger S A C Atel Const SLIDING NEEDLE FOR KNITTING MACHINE
JP3983720B2 (en) * 2003-06-25 2007-09-26 株式会社島精機製作所 Compound needle
EP1619282B1 (en) 2004-07-23 2007-08-08 Groz-Beckert KG Needle for a stitchforming system
DE502007003153D1 (en) * 2007-06-16 2010-04-29 Groz Beckert Kg Sliding needle with crimped slide channel
JP5732316B2 (en) * 2010-06-18 2015-06-10 株式会社島精機製作所 Compound needle of flat knitting machine
PT2581480T (en) 2011-10-12 2018-07-04 Groz Beckert Kg Slider needle with improved slider
CN104928841A (en) * 2015-07-07 2015-09-23 汕头市连兴实业有限公司 Novel compound needle
EP3290555A1 (en) 2016-09-02 2018-03-07 Ulrich Hofmann Needle for forming stitches on a weft or warp knitting machine, weft or warp knitting machine with a plurality of such needles and method for producing such a needle
JP6718856B2 (en) * 2017-12-14 2020-07-08 株式会社島精機製作所 Compound needle

Also Published As

Publication number Publication date
CN115398052B (en) 2023-12-15
EP3904578C0 (en) 2024-11-06
US11891734B2 (en) 2024-02-06
TW202202684A (en) 2022-01-16
WO2021219261A1 (en) 2021-11-04
JP2023521515A (en) 2023-05-24
CN115398052A (en) 2022-11-25
EP3904578A1 (en) 2021-11-03
US20230122532A1 (en) 2023-04-20
KR102605156B1 (en) 2023-11-24
JP7374342B2 (en) 2023-11-06
KR20220130238A (en) 2022-09-26

Similar Documents

Publication Publication Date Title
EP1001888B1 (en) Locking device for vehicle seats, in particular motor vehicle seats
DE19820646A1 (en) Sewing machine presser foot assembly
DE69727640T2 (en) Flat knitting machine with placement device
DE102011116763A1 (en) Tufting machine for creating a velor carpet with two different pile heights
DE3321733C2 (en) Warp knitting machine with jacquard hole needles
DE60207454T2 (en) Sliding needle for knitting machines
DE4032053C2 (en) Material holding device for holding a material
DE19905668C2 (en) Lanyard for transferring stitches
EP3904578B1 (en) Compound needle for knitting machines
DE60225255T2 (en) FADENFÜHRER FOR KNITTING OR KULIERWIRKMASCHINE
DE202017102149U1 (en) Zipper slider unit and spring leaf of the same
DE3885783T2 (en) Side transfer device for flat knitting machines.
EP3911553B1 (en) Steering column for a motor vehicle
DE19758321A1 (en) Multi head sewing machine
EP3643823B1 (en) Warp knitting machine compound needle
EP2999815B1 (en) Sliding-tongue needle
DE3027310C2 (en) Needle actuating device for a sewing machine
EP4095297B1 (en) Sinker, knitting apparatus and knitting method for producing knitted fabric
DE69315048T2 (en) Flat knitting machine
CH684305A5 (en) Mattress frame with a headboard pivotally connected thereto.
EP3452653B1 (en) Method for operating a thread cutter and thread clamping apparatus for cutting the shuttle thread in a large sticking machine, and apparatus for operating the thread cutter assembly for implementing the method
EP1055761A1 (en) Shuttle embroidery machine with support carriage
DE112005000553T5 (en) Punching tool and method for punching an oblique opening
EP3012363B1 (en) Machine knitting needle, arrangement for stitch formation, and use of this arrangement in a process on a knitting machine
EP1607503B1 (en) knitting cam

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

B565 Issuance of search results under rule 164(2) epc

Effective date: 20201028

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220503

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240613

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020009664

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

U01 Request for unitary effect filed

Effective date: 20241106

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI

Effective date: 20241113