EP3904578A1 - Compound needle for knitting machines - Google Patents
Compound needle for knitting machines Download PDFInfo
- Publication number
- EP3904578A1 EP3904578A1 EP20172077.8A EP20172077A EP3904578A1 EP 3904578 A1 EP3904578 A1 EP 3904578A1 EP 20172077 A EP20172077 A EP 20172077A EP 3904578 A1 EP3904578 A1 EP 3904578A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needle
- slide
- 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.)
- Pending
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 238000009940 knitting Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 13
- 210000003323 beak Anatomy 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 230000003716 rejuvenation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
- Loop-forming needles of various designs are known in industrial knitting machines. Loop-forming needles usually comprise a hook and a device which is used to open and close a hook - or a hook interior.
- a special embodiment of stitch-forming needles are multi-part compound needles which comprise at least one needle and a slide which extend predominantly in a longitudinal direction of the needle. The slide 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 the slide, which is used for loop formation.
- the working area of the slide is the area in which the slide moves relative to the needle during the knitting process. It is determined by the construction of the needle and slide. The relative movement between the slide and the needle in the needle longitudinal and / or needle height direction is thus limited.
- the slide has a beak at its front end which can carry a loop and can open and close the hook through the relative movement, different shapes of the beak being known and conceivable.
- the term "beak” is used functionally in the present publication: the part of the slide 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 a needle height direction 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 slide during the relative movement between the slide and the needle by holding the slide within its working range.
- the working area is the area in which the slide can be located relative to the needle with the maximum relative movement between the needle and the slide in the needle longitudinal and needle height direction.
- the slide also has at least one functional element which is in operative connection with the needle and which Holds slide in the relative movement between needle and slide in its working area relative to the needle.
- the slide At its rear end, the slide has a functional element in the form of a support point, which interacts with the needle in such a way that the slide cannot leave its working area by a tilting movement.
- the slide engages around the needle in the area of the support point over the entire height of the needle.
- the object of the invention is therefore to specify a compound needle which, while retaining the installation space, has better properties with regard to its rigidity, strength and service life.
- a compound 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 slide engages when the slide is in its working area.
- a functional element is advantageous which is in operative connection with the hole of the needle in such a way that it limits the freedom of movement of the slide to its working area relative to the needle - that is, it avoids leaving the working area at the position of the functional element.
- An elongated hole which 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 needle longitudinal direction and the needle height direction, and engages in 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, for the surface of the needle shaft to have the same position in the needle width direction along this interface.
- the hole is advantageously an elongated hole that extends through the needle shaft or a groove that only partially extends through the needle shaft in the direction of the needle width in the manner of a blind hole.
- the groove or the elongated hole advantageously have a length which runs largely in the longitudinal direction of the needle. In this way, the shape of the hole can allow a movement of the functional element relative to the needle in the hole.
- the extension of the hole in the longitudinal direction of the needle to the length of the The relative movement between the needle and the slide during the knitting process is coordinated in the longitudinal direction of the needle. It is particularly advantageous if the extent of the hole in the longitudinal direction of the needle corresponds to or is equal to at least the amount of the maximum relative movement between the needle and the slide in the longitudinal direction of the needle. In this way, the edges of the hole that delimit it in the longitudinal direction of the needle can serve as a stop for the functional element and the relative movement between the needle and the slide in the knitting process, if necessary, in both directions (maximum position in the direction of the slide 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 with spring tension in their working position can be brought into their working position more easily during assembly via the tapered belt. Furthermore, functional elements can in this way encompass the needle shaft at the point of the tapered belt without increasing the installation space of the compound needle (in particular in the needle width direction).
- the maximum cross-sectional area of the lower chord which runs parallel to the plane spanned by the needle height direction and the needle width direction, is preferably greater than the maximum cross-sectional area of the upper chord in the same plane.
- the lowermost boundary surface of the lower chord is at the same time the lowermost boundary surface of the needle in the needle height direction or runs on a plane with the lowermost boundary surface of the needle.
- the slide has aprons which, in the position of the slide 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.
- Such a material flap, 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 slide should largely run along the plane that is spanned by the longitudinal direction of the needle and the direction of the needle height.
- the bent tab represents the functional element and will largely point in the direction of the width of the needle.
- a tab is advantageous which has at least one notch in the transition to the apron of the slide, which enables the tabs to be easily expanded for assembly on the needle.
- At least one functional element can, however, also be designed as a cylindrical pin, the axis of the cylindrical pin extending in the direction of the width of the needle. It can be formed from the slider material - that is, as a single component together with the slider - or it can be attached in any way to an apron of the slider, to a strap of the same or to another component of the slider. Thermal joining processes, such as spot-welded connections, or form-fitting joining processes, such as rivet connections, are advantageous.
- the guide element is therefore generally that part of the slide that engages in the hole in the direction of the needle width.
- the slide has at least two functional elements.
- An advantageous way of arranging two such functional elements is to bring them in their working position to the needle shaft or to the hole in the needle shaft "in opposition position".
- the needle slide is constructed symmetrically at least at the location of the functional elements and that one functional element engages in a hole in the needle from one side in the needle width direction.
- the functional elements are preferably arranged at a level in the longitudinal direction of the needle. In this way, this teaching 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 longitudinal direction of the needle in the opposite direction.
- Figure 2 shows the needle 1 of the compound 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 fork arms 14 and 15 can be found 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.
- the end Figure 2 It can also be seen that the lowermost boundary surface 37 of the lower chord 9 in the needle height direction y has the same height as the lowermost boundary surface 38 of the needle 1 in this direction or that the needle 1 has a continuous lowermost boundary surface, part of which is the lowermost boundary surface 37 of the Lower chord 9 is.
- the needle 1 usually slides in its needle channel on this interface during the knitting process. This feature is advantageous for all exemplary embodiments of the invention, since it has the effect that the available installation space or working space of the needle 1 is optimally used for the stability purposes of the needle 1.
- the Figure 3 shows the slide 2.
- This has a beak 5 which can close the hook interior 4 in the knitting operation.
- the number 11 denotes the slide area of the slide 2 which, in its working position, slides along the underside of the fork arm 14 and / or the upper side of the fork arm 15 during the knitting operation.
- the broken line which delimits the carriage 11 from the rest of the slide 2 only indicates that the carriage 11 is made of solid material.
- the front surface 30 of the work web 33 to the slide interior is also shown in broken 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 limited to the skirt 18 of the slide 2 by two notches 12.
- the slide 2 also has a slide foot 19, via which the slide 2 receives the force for its movement.
- Figure 1 shows needle 1 and slide 2 in an assembled state.
- the dashed lines of the Figure 1 are outlines of the needle 1, which are covered by the slide 2.
- the working area 24 of the slide 2 on the needle 1 is indicated by the dashed oval in the Figure 1 Indicated: arrows 25 and 26 are found here, which stand for the direction and amount of relative movement between needle 1 and slide 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 slide 2 during the knitting process within its working area 24 are complex, but are known to the person skilled in the art and are exemplified in the aforementioned DE 602 07454 T2 ( EP1233093B1 ) described.
- Figure 4 shows section AA Figure 1 and thus shows the different widths 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 in such a way (this creates the radius R) 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 in the background of the sectional plane AA.
- the front surface 30 of the drive web 33 to the slide interior can also be seen, the curved course of which the Figure 3 shows.
- Figure 5 shows a section below the break line 32 of a to Figure 4 Comparable section through a somewhat different embodiment of a compound 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 apart. The smaller width of the upper belt 10, on which this expansion takes place, facilitates the assembly process.
- Figure 6 finally shows the same detail of the same section through the same embodiment of a compound needle 13 according to the invention as Figure 5 after the slide 2 has reached its end position along the assembly direction 23 and the cylindrical pins 21 have snapped into the hole 7.
- Figure 7 shows once again the cylindrical pin 21 with its surface 22 in an enlarged detail view.
- the Figures 4 , 5 and 6th also show that the cross-sectional area A O of the upper chord 10 in the plane spanned by the height y and width z of the needle 1 is less than or equal to the cross-sectional area Au of the lower chord 9 in the direction of the needle height y and width z of the needle 1 spanned plane.
- This feature also brings further advantages for all exemplary embodiments of the invention.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Eine Schiebernadel (13) für Strickmaschinen, die hinsichtlich Steifigkeit, Festigkeit und Lebensdauer optimiert ist und deren Nadel (1) zumindest ein Loch (7) aufweist, in das ein Funktionselement (8) des Schiebers (2) eingreift, wenn der Schieber (2) in seinem Arbeitsbereich (24) ist. Das Funktionselement (8) steht dabei derart in Wirkverbindung mit dem Loch (7) der Nadel (1), dass es die Bewegungsfreiheit des Schiebers (2) auf seinen Arbeitsbereich (24) relativ zur Nadel (1) begrenzt - also vermeidet, dass der Arbeitsbereich (24) an der Position des Funktionselements (8) verlassen wird.A compound needle (13) for knitting machines, which is optimized in terms of rigidity, strength and service life and whose needle (1) has at least one hole (7) into which a functional element (8) of the slide (2) engages when the slide (2 ) is in his work area (24). The functional element (8) is in operative connection with the hole (7) of the needle (1) in such a way that it limits the freedom of movement of the slide (2) to its working area (24) relative to the needle (1) - that is, it prevents the Work area (24) is left at the position of the functional element (8).
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".Loop-forming needles of various designs are known in industrial knitting machines. Loop-forming needles usually comprise a hook and a device which is used to open and close a hook - or a hook interior. A special embodiment of stitch-forming needles are multi-part compound needles which comprise at least one needle and a slide which extend predominantly in a longitudinal direction of the needle. The slide 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 the slide, which is used for loop formation. The working area of the slide is the area in which the slide moves relative to the needle during the knitting process. It is determined by the construction of the needle and slide. The relative movement between the slide and the needle in the needle longitudinal and / or needle height direction is thus limited. Furthermore, the slide has a beak at its front end which can carry a loop and can open and close the hook through the relative movement, different shapes of the beak being known and conceivable. The term "beak" is used functionally in the present publication: the part of the slide 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 a needle height direction 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 slide during the relative movement between the slide and the needle by holding the slide within its working range. The working area is the area in which the slide can be located relative to the needle with the maximum relative movement between the needle and the slide in the needle longitudinal and needle height direction. In addition, the slide also has at least one functional element which is in operative connection with the needle and which Holds slide in the relative movement between needle and slide in its working area relative to the needle.
In
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, the knitting speeds of new knitting machines have increased. This means that the requirements for strength, rigidity and service life of compound needles have also increased.
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 specify a compound needle which, while retaining 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 compound needle with the features of the preamble of
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 needle longitudinal direction and the needle height direction, and engages in 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, for the surface of the needle shaft to have the same position in the needle width direction along this interface. The hole is advantageously an elongated hole that extends through the needle shaft or a groove that only partially extends through the needle shaft in the direction of the needle width in the manner of a blind hole. The groove or the elongated hole advantageously have a length which runs largely in the longitudinal direction of the needle. In this way, the shape of the hole can allow a movement of the functional element relative to the needle in the hole. In addition, there are advantages if the extension of the hole in the longitudinal direction of the needle to the length of the The relative movement between the needle and the slide during the knitting process is coordinated in the longitudinal direction of the needle. It is particularly advantageous if the extent of the hole in the longitudinal direction of the needle corresponds to or is equal to at least the amount of the maximum relative movement between the needle and the slide in the longitudinal direction of the needle. In this way, the edges of the hole that delimit it in the longitudinal direction of the needle can serve as a stop for the functional element and the relative movement between the needle and the slide in the knitting process, if necessary, in both directions (maximum position in the direction of the slide 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 with spring tension in their working position can be brought into their working position more easily during assembly via the tapered belt. Furthermore, functional elements can in this way encompass the needle shaft at the point of the tapered belt without increasing the installation space of the compound needle (in particular in the needle width direction). The maximum cross-sectional area of the lower chord, which runs parallel to the plane spanned by the needle height direction and the needle width direction, is preferably greater than the maximum cross-sectional area of the upper chord in the same plane. In addition, it is advantageous if the lowermost boundary surface of the lower chord is at the same time the lowermost boundary surface of the needle in the needle height direction or runs on a plane with the lowermost boundary surface 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 consists in the following measure: The slide has aprons which, in the position of the slide 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. Such a material flap, 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 slide should largely run along the plane that is spanned by the longitudinal direction of the needle and the direction of the needle height. In this embodiment, the bent tab represents the functional element and will largely point in the direction of the width of the needle. The bending process creates a radius between the apron and the tip of the flap. Particularly A tab is advantageous which has at least one notch in the transition to the apron of the slide, which enables the tabs to be easily expanded for assembly on the needle. At least one functional element can, however, also be designed as a cylindrical pin, the axis of the cylindrical pin extending in the direction of the width of the needle. It can be formed from the slider material - that is, as a single component together with the slider - or it can be attached in any way to an apron of the slider, to a strap of the same or to another component of the slider. Thermal joining processes, such as spot-welded connections, or form-fitting joining processes, such as rivet connections, are advantageous. The guide element is therefore generally that part of the slide that engages in 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 slide has at least two functional elements. An advantageous way of arranging two such functional elements is to bring them in their working position to the needle shaft or to the hole in the needle shaft "in opposition position". This means that the needle slide is constructed symmetrically at least at the location of the functional elements and that one functional element engages in a hole in the needle from one side in the needle width direction. The functional elements are preferably arranged at a level in the longitudinal direction of the needle. In this way, this teaching 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 longitudinal direction of the needle 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 slides according to the invention is particularly noticeable 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
-
zeigt eine Schiebernadel 13 in zusammengesetztem ZustandFigur 1 - Fig. 2
-
zeigt eineFigur 2Nadel 1der Schiebernadel 13 einzeln - Fig. 3
-
zeigt einenFigur 3Schieber 2der Schiebernadel 13 einzeln - Fig. 4
-
zeigt den SchnittFigur 4A-A aus Figur 1 - Fig. 5
-
zeigt einen äquivalenten Schnitt durch ein Ausführungsbeispiel einer erfindungsgemäßen Schiebernadel 13 mit einem zylindrischen Zapfen 21 während derFigur 5Schieber 2 inRichtung des Pfeiles 23 in seiner Arbeitsposition bewegt wird - Fig. 6
-
Zeigt denFigur 6Schnitt aus Figur 5 mit dem Schieber 2 in seiner Arbeitsposition - Fig. 7
-
ist ein vergrößerterFigur 7Ausschnitt aus Figur 5
- Fig. 1
-
Figure 1 shows acompound needle 13 in the assembled state - Fig. 2
-
Figure 2 shows aneedle 1 of thecompound needle 13 individually - Fig. 3
-
Figure 3 shows aslide 2 of thecompound needle 13 individually - Fig. 4
-
Figure 4 shows section AAFigure 1 - Fig. 5
-
Figure 5 shows an equivalent section through an embodiment of acompound needle 13 according to the invention with acylindrical pin 21 while theslide 2 is moved in the direction ofarrow 23 in its working position - Fig. 6
-
Figure 6 Shows the cutFigure 5 with theslide 2 in its working position - Fig. 7
-
Figure 7 is an enlarged section fromFigure 5
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
Die
Claims (14)
dadurch gekennzeichnet, dass
characterized in that
dadurch gekennzeichnet, dass
das Loch (7) ein Langloch oder eine Nut ist.Compound needle (13) according to the preceding claim
characterized in that
the hole (7) is an elongated hole or a groove.
dadurch gekennzeichnet, dass
das Loch (7) eine Mindestausdehnung in der Nadellängsrichtung (x) besitzt, die der maximalen Relativbewegung (25) zwischen der Nadel (1) und dem Schieber (2) in Nadellängsrichtung (x) weitgehend entspricht.Compound needle (13) according to one of the two preceding claims
characterized in that
the hole (7) has a minimum dimension in the longitudinal direction of the needle (x) which largely corresponds to the maximum relative movement (25) between the needle (1) and the slide (2) in the longitudinal direction of the needle (x).
dadurch gekennzeichnet, dass
die Nadel (1) zumindest in einem in Nadelhöhenrichtung (y) oberhalb des Lochs (7) liegenden Bereich - dem Obergurt (10) - und/oder in einem unterhalb des Lochs (7) liegenden Bereich - dem Untergurt (9) -
characterized in that
the needle (1) at least in an area above the hole (7) in the needle height direction (y) - the upper belt (10) - and / or in an area below the hole (7) - the lower belt (9) -
dadurch gekennzeichnet, dass
das zumindest eine Funktionselement (8) eine Lasche ist, die an der Schürze (18) des Schiebers (2) hängt und die vorzugsweise durch einen Biegeprozess zum Eingreifen in das Loch (7) ausgerichtet ist.Compound needle (13) according to one of the preceding claims
characterized in that
the at least one functional element (8) is a tab which hangs on the skirt (18) of the slide (2) and which is preferably aligned to engage the hole (7) by a bending process.
dadurch gekennzeichnet, dass
das Funktionselement (8) mindestens eine Einkerbung (12) umfasst.Compound needle (13) according to one of the preceding claims
characterized in that
the functional element (8) comprises at least one notch (12).
dadurch gekennzeichnet, dass
das zumindest eine Funktionselement (8) mindestens einen zylindrischen Zapfen (21) umfasst, wobei sich die Achse des Zapfens (21) in Nadelbreitenrichtung (z) erstreckt.Compound needle (13) according to one of the preceding claims
characterized in that
the at least one functional element (8) comprises at least one cylindrical pin (21), the axis of the pin (21) extending in the needle width direction (z).
dadurch gekennzeichnet, dass
das zumindest eine Funktionselement (8) eine Oberfläche (22) aufweist, die in ihrer Arbeitsstellung in Nadelbreitenrichtung (z) zeigt und die um einen Montagewinkel (27) gegen die Ebene geneigt ist, die von der Nadelhöhenrichtung (y) und der Nadellängsrichtung (x) aufgespannt ist.Compound needle (13) according to one of the preceding claims
characterized in that
the at least one functional element (8) has a surface (22) which, in its working position, points in the needle width direction (z) and which is inclined by an assembly angle (27) relative to the plane defined by the needle height direction (y) and the needle longitudinal direction (x ) is stretched.
dadurch gekennzeichnet, dass
characterized in that
dadurch gekennzeichnet, dass
die Nadel (1) und/oder der Schieber (2) während des Strickvorganges über mechanische Elemente, wie Nadelfüße (17) und oder Schieberfüße (19), von Vorrichtungen der Strickmaschinen angetrieben werden.Compound needle (13) according to one of the preceding claims
characterized in that
the needle (1) and / or the slide (2) are driven during the knitting process via mechanical elements such as needle feet (17) and / or slide feet (19) from devices of the knitting machines.
dadurch gekennzeichnet, dass
zwischen dem Ausdehnungsbereich (34) der Gabel (6) in Nadellängsrichtung (x) und dem Ausdehnungsbereich (35) des Loches (7) in Nadellängsrichtung (x) keine Überlappung in Nadellängsrichtung (x) besteht.Compound needle (13) according to one of the preceding claims
characterized in that
between the expansion area (34) of the fork (6) in the longitudinal direction of the needle (x) and the expansion area (35) of the hole (7) in the longitudinal direction of the needle (x) there is no overlap in the longitudinal direction of the needle (x).
dadurch gekennzeichnet, dass
zwischen dem Ende des Ausdehnungsbereichs (34) der Gabel (6) in Nadellängsrichtung (x) und dem Beginn des Ausdehnungsbereichs (35) des Loches (7) in Nadellängsrichtung (x) ein Abstand (20) besteht, der zumindest die gleiche Ausdehnung in Nadellängsrichtung (x) hat, wie die größte Ausdehnung des oberen Gabelarms (14) in Nadelhöhenrichtung (y).Compound needle (13) according to the preceding claim
characterized in that
between the end of the expansion area (34) of the fork (6) in the longitudinal direction of the needle (x) and the beginning of the expansion area (35) of the hole (7) in the longitudinal direction (x) of the needle there is a distance (20) which is at least the same It has extension in the longitudinal direction of the needle (x), like the largest extension of the upper fork arm (14) in the direction of the needle height (y).
dadurch gekennzeichnet, dass
die unterste Grenzfläche (37) des Untergurtes (9) in der Nadelhöhenrichtung (y) dieselbe Höhe aufweist wie die unterste Grenzfläche (38) der Nadel (1) oder ein Teil dieser Grenzfläche (38) ist.Compound needle (13) according to one of the preceding claims
characterized in that
the lowermost boundary surface (37) of the lower belt (9) in the needle height direction (y) has the same height as the lowermost boundary surface (38) of the needle (1) or a part of this boundary surface (38).
dadurch gekennzeichnet, dass
die Querschnittsfläche (AO) des Obergurtes (10) in der von der Nadelhöhen- (y) und Nadelbreitenrichtung (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.Compound needle (13) according to one of the preceding claims
characterized in that
the cross-sectional area (AO) of the upper chord (10) in the plane spanned by the needle height (y) and needle width (z) direction of the needle (1) is less than or equal to the cross-sectional area (AU) of the lower chord (9) in that of the Needle height (y) and needle width direction (z) of the needle (1) spanned plane.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20172077.8A EP3904578A1 (en) | 2020-04-29 | 2020-04-29 | Compound needle for knitting machines |
PCT/EP2021/052525 WO2021219261A1 (en) | 2020-04-29 | 2021-02-03 | Slide needle for knitting machines |
KR1020227031088A KR102605156B1 (en) | 2020-04-29 | 2021-02-03 | Compound Needles for Knitting Machines |
CN202180031719.XA CN115398052B (en) | 2020-04-29 | 2021-02-03 | Sliding needle for knitting machine |
US17/922,009 US11891734B2 (en) | 2020-04-29 | 2021-02-03 | Compound needle for knitting machines |
JP2022564819A JP7374342B2 (en) | 2020-04-29 | 2021-02-03 | Compound needle for knitting machine |
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 EP3904578A1 (en) | 2020-04-29 | 2020-04-29 | Compound needle for knitting machines |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3904578A1 true EP3904578A1 (en) | 2021-11-03 |
Family
ID=70480103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20172077.8A Pending EP3904578A1 (en) | 2020-04-29 | 2020-04-29 | Compound needle for knitting machines |
Country Status (7)
Country | Link |
---|---|
US (1) | US11891734B2 (en) |
EP (1) | EP3904578A1 (en) |
JP (1) | JP7374342B2 (en) |
KR (1) | KR102605156B1 (en) |
CN (1) | CN115398052B (en) |
TW (1) | TW202202684A (en) |
WO (1) | WO2021219261A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB156405A (en) * | 1919-12-23 | 1921-01-13 | Patrick Philip Lamontagne | Knitting machine needle |
JPS626392U (en) * | 1985-06-28 | 1987-01-14 | ||
DE4446952A1 (en) * | 1993-12-28 | 1995-06-29 | Etsuzo Sasaki | Latch knitting needle |
EP1233093A1 (en) * | 2001-02-20 | 2002-08-21 | Atelier De Construction Steiger S.A. | Sliderneedle |
EP2581480A1 (en) * | 2011-10-12 | 2013-04-17 | Groz-Beckert KG | Slider needle with improved slider |
US20190276957A1 (en) * | 2016-09-02 | 2019-09-12 | Ulrich Hofmann | Needle for loop formation on a knitting or warp-knitting machine, knitting or warp-knitting machine having a plurality of such needles, and method for producing such a needle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1435714A (en) * | 1922-11-14 | Knitting-machine needle | ||
US1435715A (en) * | 1922-11-14 | Knitting-machine 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 |
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 |
CN104928841A (en) * | 2015-07-07 | 2015-09-23 | 汕头市连兴实业有限公司 | Novel compound needle |
JP6718856B2 (en) | 2017-12-14 | 2020-07-08 | 株式会社島精機製作所 | Compound needle |
-
2020
- 2020-04-29 EP EP20172077.8A patent/EP3904578A1/en active Pending
-
2021
- 2021-02-03 KR KR1020227031088A patent/KR102605156B1/en active IP Right Grant
- 2021-02-03 JP JP2022564819A patent/JP7374342B2/en active Active
- 2021-02-03 WO PCT/EP2021/052525 patent/WO2021219261A1/en active Application Filing
- 2021-02-03 CN CN202180031719.XA patent/CN115398052B/en active Active
- 2021-02-03 US US17/922,009 patent/US11891734B2/en active Active
- 2021-03-18 TW TW110109686A patent/TW202202684A/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB156405A (en) * | 1919-12-23 | 1921-01-13 | Patrick Philip Lamontagne | Knitting machine needle |
JPS626392U (en) * | 1985-06-28 | 1987-01-14 | ||
DE4446952A1 (en) * | 1993-12-28 | 1995-06-29 | Etsuzo Sasaki | Latch knitting needle |
EP1233093A1 (en) * | 2001-02-20 | 2002-08-21 | Atelier De Construction Steiger S.A. | Sliderneedle |
EP1233093B1 (en) | 2001-02-20 | 2005-11-23 | Atelier De Construction Steiger S.A. | Sliding-tongue compound needle for a knitting machine |
DE60207454T2 (en) | 2001-02-20 | 2006-07-20 | Atelier De Construction Steiger S.A. | Sliding needle for knitting machines |
EP2581480A1 (en) * | 2011-10-12 | 2013-04-17 | Groz-Beckert KG | Slider needle with improved slider |
US20190276957A1 (en) * | 2016-09-02 | 2019-09-12 | Ulrich Hofmann | Needle for loop formation on a knitting or warp-knitting machine, knitting or warp-knitting machine having a plurality of such needles, and method for producing such a needle |
Also Published As
Publication number | Publication date |
---|---|
JP7374342B2 (en) | 2023-11-06 |
WO2021219261A1 (en) | 2021-11-04 |
CN115398052B (en) | 2023-12-15 |
US11891734B2 (en) | 2024-02-06 |
US20230122532A1 (en) | 2023-04-20 |
JP2023521515A (en) | 2023-05-24 |
KR20220130238A (en) | 2022-09-26 |
CN115398052A (en) | 2022-11-25 |
TW202202684A (en) | 2022-01-16 |
KR102605156B1 (en) | 2023-11-24 |
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