EP1270784B1 - Compound needle - Google Patents
Compound needle Download PDFInfo
- Publication number
- EP1270784B1 EP1270784B1 EP02011023A EP02011023A EP1270784B1 EP 1270784 B1 EP1270784 B1 EP 1270784B1 EP 02011023 A EP02011023 A EP 02011023A EP 02011023 A EP02011023 A EP 02011023A EP 1270784 B1 EP1270784 B1 EP 1270784B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- slot
- springs
- needle
- slider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- the invention relates to a slider needle, in particular for mesh-forming textile machines.
- a slider needle is known. This has an elongated body, which merges into a hook at one end. At a location opposite the open sides of the hook, two slot walls spaced parallel to one another commence and extend along the shaft. Between the slot walls, a slide slot is formed. In the slide slot a longitudinally displaceable slide is arranged, consisting of two flat against each other Slide springs exists. These are approximately rectangular in side view. With an upper corner portion, the slider can touch the hook or at least the hook tip when the slider is shifted toward the hook. The two slide springs are slightly bent away from each other in their corresponding upper corner area, thus forming a funnel for receiving the hook tip. This funnel opens in a direction oblique to the direction of movement of the slider.
- the guide of the slider proves to be particularly good when the slide slot is narrow, so that the slide springs are well centered. This is the Slider also relatively insensitive to lateral tension, for example, starting from obliquely stretched mesh.
- the slider according to the generic DE-A-19 913 822 however, its movement requires a force that overcomes the slider friction in the slider slot.
- the slider friction depends, for example, on the size of the funnel. If the slide springs are widely spread away from one another at their free ends, so that a large funnel is formed which securely hits the hook even when the thread is pulled sideways, this results in increased slide friction.
- the slide needle according to the invention has a slider having at least two slide springs, which slides in a slide slot.
- the slide may be formed in one piece or from a plurality of individual pieces (slide spring, slider body), which are connected to each other detachably or permanently.
- the slide slot is narrower at its end facing the hook in a first guide area than in the remaining area.
- the width or (synonymous) width of the slider slot is in the second Guide area larger than in the first guide area, when measured at the same height above the needle back. If both measuring points M1, M2 are connected to one another by an imaginary straight line G, this straight line G lies parallel to the needle back (FIG. Fig. 4 ).
- the first guide area is narrower along its entire height than the second, adjoining the first guide area in the needle longitudinal direction.
- the slide springs are curved like a bell each outward.
- the slide slot is stepped in its width in the longitudinal direction. It is narrow at its entrance (a longitudinally forward position) and away from the entrance (a longitudinal rearward position) it is wide in a second guide area, ie it is narrower in the vicinity of its entrance immediately opposite the hook Furthermore. Both management areas may partially overlap. It is also conceivable that the slide slot or at least the second guide area partially or over its entire length assumes a stepped or deviating from a U-shape embodiment.
- the lateral bulging of the slider springs is preferably set to be in the narrowed slider region when the free ends of the slider springs forming a funnel are slid over the hook tip.
- the length of the narrowed portion and the position of the bulged portions of the slider springs are set so that when the slider is pushed onto the hook, the bulged portions of the slider springs enter the narrowed slot portion before the hopper reaches the hook tip.
- the hopper is precisely centered just before it arrives at the point of the hook, so that it can be kept very tight and despite lateral threading hits the hook in the middle.
- the slider friction is generally low, because once the slider is retracted away from the hook, the laterally bulged slider spring portions get into the enlarged slot by running with little spring tension against the slot walls or even with play.
- the slider needle according to the invention is thus less susceptible to contamination.
- the bend of the slider springs is preferably such that the funnel outer width is about as large as the slot width of the slider slot when the bulbous portions of the slider springs are in the enlarged portion of the slider slot. This ensures a low slide friction, because the slide springs can relax in the slide slot.
- the bulbous areas are preferably without bias in the widened slot.
- the slider needle has a device which causes it to slide into the slider slot during slide retraction.
- the slide slot as it is in itself (eg from the WO 01/31101 ) is known, at its entrance a ground-guiding surface for guiding the slide parts. This forms an outsole for the slide springs. Subsequent to this outsole, a sinking bottom region is provided which has a smaller distance to the needle back than the bottom guide surface. With the same diaphragm wall height, this results in a recess of the slide slot.
- the bottom guide surface is initially straight, at a slightly greater distance from the needle back, and then approaches it to extend parallel to the needle back parallel thereto.
- the slider spring when withdrawn, may simultaneously descend, ie, retract below the slot wall upper edge in the recessed slider slot area. This is important in particularly fine knit fabrics where small stitches are required and a low leg height is desired, as well as a slight increase in the shaft height in the direction away from the hook.
- the slider with its Schieberfeder dictaten a dip in the slide slot. In this way, a total of three guide surfaces are formed at the slot entrance. These are the two opposite slot wall inner surfaces and the intermediate ground guide surface. These three surfaces together form a guide means or a guide means and at the same time an actuating means with respect to the funnel spreading.
- a slotted guide engage in the corresponding curved portions of the slide springs, when the slider is withdrawn.
- the slotted guide is formed for example by two provided on the needle body obliquely to the needle back guide surfaces, which are associated with the same angle aligned guide surfaces of the slide spring. Upon retraction of the slider, the guide surfaces come into abutment with each other and cause the slider to move downwardly so that it slides into the slider slot (approaching the needle back).
- FIG. 1 a slider needle 1 is illustrated, which has a needle body 2 with a hook 3 formed on the end.
- the hook 3 opposite begins a slide slot 4, of two parallel to each other, for example FIG. 5 apparent slot walls 6, 7 is limited.
- a slider 8 is arranged, which, as FIG. 2 illustrated, on the hook 3 and how FIG. 1 illustrated, can be moved away from the hook 3.
- the slider 8 has two slide springs 11, 12, which separately in FIG. 6 illustrated and taken on a slider body 14.
- the formation of the slide slot 4 is in particular from the FIGS. 3 to 5 out. Thereafter, the slit walls 6, 7 delimiting the slide slot 4 run flat at a location 15 located near the hook 3.
- the point 15 represents the beginning of the slide slot 4.
- the slide slot 4 has a width Wl ( FIG. 5 ).
- the two facing each other inner surfaces 17, 18 of the slot walls 6, 7 here have the distance Wl from each other and thus form side guide surfaces.
- the region 4a of the slide slot 4 delimited by the bottom guide surface 16 and the inner surfaces 17, 18 thus forms a first guide region.
- the remaining area 4b of the slide slot 4 forms a second guide or running area or clearance area, in which the slide 8 can run with less guidance but reduced friction.
- the running area 4b is widened over its entire height.
- the slot walls 6, 7 here have inner surfaces 21, 22 whose distance W2 is greater than the distance W1.
- the running area 4b lowered the slot floor.
- the inner surfaces 17, 18, for example, with a step in the inner surfaces 21, 22 pass the bottom guide surface 16 is in a sinking bottom region 24 via. From this lowered, ie approximated to the needle back 25 area of the slide slot 4, the inner surfaces 21, 22 extend parallel to each other and at full height with a constant distance.
- the slide slot 4 at the entrance to the whole height is narrow (W1) and the rest at the full height (W2).
- the current in the slide slot 4 slide springs 11, 12 are in FIG. 6 shown separately. They have free ends 26, 27 which are bent away from each other and thus form a funnel 28.
- the funnel 28 is open on the hook 3.
- the opening direction is approximately parallel to the needle back 25, and the bottom guide surface 16.
- the slide springs 11, 12 are bent towards each other, wherein they first touch at a point 29.
- the slide springs 11, 12 are in turn laterally curved away from each other.
- the bulge is approximately so large that the spacing of the flanks 31, 32 from each other approximately coincides with the funnel outer width W.
- the flanks 31, 32 represent those points of the outer surfaces of the slide springs 11, 12, which are the most distant in the relaxed state.
- the outline of the slide springs 11, 12, which results in a side view, is, in particular from FIG. 4 seen.
- Both slide springs 11, 12 are at least in their in FIG. 4 recognizable area formed symmetrical to each other.
- the slider springs 11, 12 have a front thread receiving portion 33 which both to open and close the thread space as well as to the mesh transfer.
- the length of the thread receiving portion 33 is approximately equal to the distance between the hook tip and the beginning of the slide slot 4 (point 15).
- the point 29 is arranged in the thread receiving portion 33, the funnel 28 is thus short and the flanks 31, 32 can be found in the closed thread space in the guide portion 4a of the slide slot 4.
- the slide springs 11, 12 are in exactly this area with a lower sliding edge 34th provided that when the hopper 28 is just pushed over the hook tip, abuts the bottom guide surface 16. Starting from this, lower edges 35 rise gradually towards the Schieberfederspitze 39, which in FIG. 4 indicated by the dimension T2.
- T2 denotes the distance from the bottom guide surface to the point 29 at which the two free ends 26, 27 of the slide springs 11, 12 touch.
- the distance between the slider spring tip 39 and the bottom guide surface 16 is in FIG. 4 denoted by T. This distance is greater than the height T1 of the slot walls 6, 7 in the guide region 4a. This makes it possible that the slider tips of the funnel 28 are retracted in slide retraction only in the second further slot area.
- the ends 26, 27 of the slide springs 11, 12 are flattened towards the tip 39 ( FIG. 6 ). This ensures the inclusion of the hook tip 3 between the ends 26, 27 even with advanced wear.
- a shoulder 36 connects, which serves for stitch positioning.
- the slide springs 11, 12 are following the shoulder 36, as FIGS. 1 and 2 indicate something bent outwards, so that corresponding sections with guide surfaces 37, 38 protrude laterally beyond the slide slot 4.
- the guide surfaces 37, 38 are arranged obliquely to the needle back 25. Its inclination approximately coincides with the inclination of the transition from the ground guide surface 16 to the sink bottom region 24.
- Corresponding guide surfaces 41, 42 are formed as counter surfaces with the same inclination to projections of the slot walls 6, 7.
- the projections form a guide slot for the slider 8 in order to guide it downwards in the running area 4b such that FIG. 3 illustrated, the thread receiving portion 33, disappears below the slot upper edge of the slide slot 4.
- the distance between the sink bottom region 24 and the upper edge of the slot walls 6, 7 is greater than the corresponding height of the slide springs 11, 12th
- the needle 1 is inserted into a needle channel of a knitting machine and there performs a reciprocating motion along its needle back 25th out.
- the slider 8 is moved accordingly against the needle body 2.
- the slider 8 is fully retracted into the slider slot 4 to release the hook 3 completely, the slider 8 leaves the guide portion 4a and thus fully enters the running portion 4b where it can be slid with little friction.
- the measure W FIG. 6
- the measure W FIG. 6
- the slider 8 If, on the other hand, the slider 8 is moved toward the hook 3 for closing the thread space, the slider 8 initially lifts slightly during the transition from the running area 4b into the guide area 4a, so that its sliding edge 34 reaches the floor guide surface 16. In addition, the flanks 31, 32 of the slide springs 11, 12 reach the guide area 4a, which is narrower than the remaining slide slot 4. Thus, the slide 8 experiences a precise centering through the guide area 4a.
- the slide springs 11, 12 are resiliently biased to the inner surfaces 17, 18 at. On the thread receiving portion 33 acting lateral forces, as may occur by biasing stitches are absorbed by the bias of the slide springs and do not lead to incorrect centering of the slider 8.
- the narrow funnel 28 can be precisely slid over the slender tip of the hook 3, without missing it.
- the risk that a free end 26, 27 of a slider spring 11, 12 butt stumps on the tip of the hook or even passes by the wrong side is thus not present.
- the needle therefore works despite reduced friction of the Slider 8 with an improved guidance of the same and thus with increased precision.
- FIG. 7 the slide slot 4 and the slide springs 11, 12 are illustrated in a position in which the flanks 31, 32 have not yet reached the first guide area 4a.
- the funnel 28, ie the free ends 26, 27 thereof, are still far from the hook 3.
- the slide springs 11, 12 are thus largely relaxed and slide with little friction or even with play in the running area 4b.
- the flared funnel 28 thus hits the hook 3 with great certainty such that the hook 3 finds itself in the hopper 28 without abutting. Even strong side acting on the slide 8 train can not affect the function.
- the slide springs 11, 12 act in conjunction with the guide portion 4a as a pair of tweezers, which opens when advancing the slide 8 for receiving the hook, however, closes when retracted so that the slide 8 runs a total of low friction in the slide slot 4.
- a slider needle 1 is provided with a slider 8, which has two slide springs 11, 12. These are curved away from one another in a region adjacent to their insertion funnel 28.
- the slider needle has a slide slot 4, which is initially relatively narrow at its input 15, so that here a guide portion 4a is fixed. Following this, the slide slot 4 widens, so that a running region 4b is fixed.
- the lateral bulging of the slide springs 11, 12 is dimensioned so that the slide 8 runs freely in the running area 4b and is guided in the guide area 4a without lateral play.
- the needle 1 also works precisely with lateral forces acting on the slide 8 tensile forces and requires only a small opening width of their funnel 28th
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Description
Die Erfindung betrifft eine Schiebernadel, insbesondere für maschenbildende Textilmaschinen.The invention relates to a slider needle, in particular for mesh-forming textile machines.
Aus der
Um den beiden nach außen gebogenen Ecken des Schiebers zu gestatten, in den Schieberschlitz einzutreten, ist dieser in einem oberen schmalen streifenförmigen Bereich verbreitert. Der bodennahe Schlitzbereich ist hingegen enger. Der Boden des Schieberschlitzes ist im Wesentlichen eben - der Schieber führt eine reine Axialbewegung aus, wobei der Schieber seine Führung in jeder Position durch die Innenflächen der Schlitzwände erhält, deren Abstand einheitlich ist.In order to allow the two outwardly bent corners of the slider to enter the slide slot, this is widened in an upper narrow strip-shaped area. The ground-level slot area, however, is narrower. The bottom of the slide slot is essentially flat - the slide performs a pure axial movement, wherein the slider receives its guidance in any position through the inner surfaces of the slot walls whose spacing is uniform.
Weiter ist aus der
Die Führung des Schiebers erweist sich dann als besonders gut, wenn der Schieberschlitz eng ist, so dass die Schieberfedern gut zentriert sind. Damit ist der Schieber auch relativ unempfindlich gegen seitlichen Zug, der beispielsweise von schräg gespannten Maschen ausgeht.The guide of the slider proves to be particularly good when the slide slot is narrow, so that the slide springs are well centered. This is the Slider also relatively insensitive to lateral tension, for example, starting from obliquely stretched mesh.
Zur Behebung dieses Problems in Verbindung mit einem einteiligen Schieber wird durch die
Der Schieber gemäß der gattungsgemäßen
Ein weiteres Problem besteht darin, dass beim Eintreten von Schmutz, Faserresten und dergl. in den Schieberschlitz, die Schieberreibung maßgeblich erhöht wird. Dies kann bis zur Funktionsunfähigkeit der Schiebernadel führen.Another problem is that when entering dirt, fiber remains and the like. In the slide slot, the slider friction is significantly increased. This can lead to the inoperability of the needle.
Es ist Aufgabe der Erfindung, eine Schiebernadel mit einem Schieber, des wenigstens zwei Schieberfedern aufweist zu schaffen, die wenig oder nicht empfindlich gegen seitlichen Maschenzug ist und die eine verminderte Schieberreibung aufweist.It is an object of the invention to provide a slider needle with a slider having at least two slide springs, which is little or not sensitive to lateral pulley and has a reduced slide friction.
Diese Aufgabe wird mit einer Schiebernadel gelöst, die die Merkmale des Patentanspruchs 1 aufweist:This object is achieved with a slider needle having the features of claim 1:
Die erfindungsgemäße Schiebernadel weist einen wenigstens zwei Schieberfedern aufweisenden Schieber auf, der in einem Schieberschlitz läuft. Der Schieber kann einstückig oder aus mehreren einzelnen Stücken (Schieberfeder, Schieberkörper) gebildet sein, die miteinander lösbar oder unlösbar verbunden sind. Der Schieberschlitz ist an seinem dem Haken zugewandten Ende in einem ersten Führungsbereich enger als im übrigen Bereich. Die Weite oder (synonym) Breite des Schieberschlitzes ist im zweiten Führungsbereich größer als im ersten Führungsbereich, wenn jeweils auf gleicher Höhe über dem Nadelrücken gemessen wird. Werden beide Messstellen M1, M2 durch eine gedachte Gerade G miteinander verbunden, liegt diese Gerade G parallel zu dem Nadelrücken (
Die seitliche Ausbauchung der Schieberfedern ist vorzugsweise so festgelegt, dass sie sich im verengten Schieberbereich befindet, wenn die freien Enden der Schieberfedern, die einen Trichter bilden, über die Hakenspitze geschoben sind. Die Länge des verengten Bereiches und die Position der ausgebauchten Bereiche der Schieberfedern sind so festgelegt, dass, wenn der Schieber auf den Haken hingeschoben wird, die ausgebauchten Bereiche der Schieberfedern in den verengten Schlitzbereich eintreten bevor der Trichter die Hakenspitze erreicht. Dadurch wird der Trichter kurz bevor er an der Hakenspitze ankommt, präzise zentriert, so dass er sehr eng gehalten werden kann und trotz seitlichen Fadenzugs den Haken mittig trifft. Andererseits ist die Schieberreibung im Allgemeinen gering, denn sobald der Schieber von dem Haken weg zurückgezogen wird, geraten die seitlich ausgebauchten Schieberfederbereiche in den erweiterten Schlitz, indem sie mit geringer Federspannung gegen die Schlitzwände oder auch mit Spiel laufen.The lateral bulging of the slider springs is preferably set to be in the narrowed slider region when the free ends of the slider springs forming a funnel are slid over the hook tip. The length of the narrowed portion and the position of the bulged portions of the slider springs are set so that when the slider is pushed onto the hook, the bulged portions of the slider springs enter the narrowed slot portion before the hopper reaches the hook tip. As a result, the hopper is precisely centered just before it arrives at the point of the hook, so that it can be kept very tight and despite lateral threading hits the hook in the middle. On the other hand, the slider friction is generally low, because once the slider is retracted away from the hook, the laterally bulged slider spring portions get into the enlarged slot by running with little spring tension against the slot walls or even with play.
Im erweiterten Schlitzbereich (zweiter Führungsbereich) können sich auch Schmutz und Faserreste ablagern, ohne dass die Funktionsfähigkeit der Schiebernadel zu sehr beeinträchtigt wird. Die erfindungsgemäße Schiebernadel ist somit gegen Verschmutzung weniger anfällig.In the extended slot area (second guide area), dirt and fiber residues can be deposited without the functionality of the needle being impaired too much. The slider needle according to the invention is thus less susceptible to contamination.
Als Zusatzeffekt, der eine besonders schmale Auslegung des Trichters gestattet, wirkt, dass sich die den Trichter bildenden freien Enden der Schieberfedern voneinander weg spreizen, sobald der bauchige Bereich der Schieberfedern in den verengten Schlitzbereich eintritt. Es werden hier die bauchigen Bereiche der Schieberfedern aufeinander zu bewegt (zusammengedrückt), womit sich die freien Enden der Schieberfedern auf eine Breite voneinander weg spreizen können, die die Schlitzbreite übersteigt. Damit kann ein besonders sicheres Arbeiten der Schiebernadel sichergestellt werden.As an additional effect, which allows a particularly narrow design of the funnel, acts that the funnel forming free ends of the slide springs spread apart when the bulbous portion of the slide springs enters the narrowed slot area. Here, the bulbous portions of the slide springs are moved towards each other (compressed), whereby the free ends of the slide springs can spread apart to a width that exceeds the slot width. Thus, a particularly safe work of the needle can be ensured.
Die Biegung der Schieberfedern ist vorzugsweise so bemessen, dass die Trichteraußenbreite etwa so groß ist wie die Schlitzbreite des Schieberschlitzes, wenn die bauchigen Bereiche der Schieberfedern in dem erweiterten Bereich des Schieberschlitzes stehen. Dies sichert eine geringe Schieberreibung, denn die Schieberfedern können sich in den Schieberschlitz entspannen. Die bauchigen Bereiche liegen vorzugsweise ohne Vorspannung in dem verbreiterten Schlitz.The bend of the slider springs is preferably such that the funnel outer width is about as large as the slot width of the slider slot when the bulbous portions of the slider springs are in the enlarged portion of the slider slot. This ensures a low slide friction, because the slide springs can relax in the slide slot. The bulbous areas are preferably without bias in the widened slot.
Die Schieberreibung an den Schlitzflanken beschränkt sich im Wesentlichen auf den vorderen engen Schlitzbereich. Damit wird sowohl ein hohes Widerstandsmoment gegen seitlichen Maschenzug als auch eine geringe Reibung, d.h. ein leichtgängiger Schieber erreicht.The slide friction on the slot flanks is essentially limited to the front narrow slot area. Thus, both a high resistance torque against lateral pulley and a low friction, i. achieved a smooth slide.
Die Schiebernadel weist eine Einrichtung auf, die bei Schieberrückzug das Eintauchen desselben in den Schieberschlitz bewirkt. Dazu weist der Schieberschlitz, wie es an sich (z.B. aus der
Um das Eintauchen des Schiebers in den Schieberschlitz zu steuern, kann, wie es (aus der
Einzelheiten vorteilhafter Ausführungsformen der Erfindung ergeben sich aus der Zeichnung, der Beschreibung oder Unteransprüchen. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung veranschaulicht. Es zeigen:
- Figur 1
- eine Schiebernadel mit zurückgezogenem Schieber (mit offenem Fadenraum) in ausschnittsweiser, perspektivischer Darstellung,
Figur 2- die Schiebernadel nach
Figur 1 mit vorgeschobenem Schieber (mit geschlossenem Fadenraum) in ausschnittsweiser, perspektivischer Darstellung, Figur 3- die Schiebernadel nach
Figur 1 in ausschnittsweiser Seitenansicht, Figur 4- die
Schiebernadel nach Figur 2 in ausschnittsweiser Seitenansicht, - Figur 5
- die Schiebernadel ohne Schieber in einer ausschnittsweisen Draufsicht,
Figur 6- den Schieber der Schiebernadel in Draufsicht,
Figur 7- eine Funktionsdarstellung von Schieberschlitz und Schieber der Schiebernadel in Position nach
Figur 1 in schematischer Draufsicht und Figur 8- eine Funktionsdarstellung von Schieberschlitz und Schieber für eine zwischen den Positionen nach
Figur 1 und 2 liegende Position in einer schematisierten Draufsicht.
- FIG. 1
- a slider needle with retracted slide (with open thread space) in a fragmentary, perspective view,
- FIG. 2
- the needle after
FIG. 1 with advanced slide (with closed thread space) in fragmentary, perspective view, - FIG. 3
- the needle after
FIG. 1 in a sectional side view, - FIG. 4
- the needle after
FIG. 2 in a sectional side view, - FIG. 5
- the slider needle without slide in a partial plan view,
- FIG. 6
- the slider of the needle in plan view,
- FIG. 7
- a functional representation of slide slot and slide the needle in position after
FIG. 1 in a schematic plan view and - FIG. 8
- a functional illustration of slide slot and slider for a between positions after
FIGS. 1 and 2 lying position in a schematic plan view.
In
Die Ausbildung des Schieberschlitzes 4 geht insbesondere aus den
Die in dem Schieberschlitz 4 laufenden Schieberfedern 11, 12 sind in
Der Umriss der Schieberfedern 11, 12, der sich in Seitenansicht ergibt, ist, insbesondere aus
Vorzugsweise sind die Enden 26, 27 der Schieberfedern 11, 12 zu der Spitze 39 hin abgeflacht (
An den Fadenaufnahmeabschnitt 33 schließt sich eine Schulter 36 an, die zur Maschenpositionierung dient. Die Schieberfedern 11, 12 sind im Anschluss an die Schulter 36, wie
Die insoweit beschriebene Schiebernadel arbeitet wie folgt:The needle described so far works as follows:
In Betrieb ist die Schiebernadel 1 in einen Nadelkanal einer Strickmaschine eingesetzt und führt dort eine hin- und hergehende Bewegung längs ihres Nadelrückens 25 aus. Zum Öffnen und Schließen des Hakenraums sowie zum Übertragen von Fäden auf andere Strickwerkzeuge wird der Schieber 8 entsprechend gegen den Nadelkörper 2 bewegt. Wird der Schieber 8 ganz in den Schieberschlitz 4 hereingezogen, um den Haken 3 ganz freizugeben, verlässt der Schieber 8 den Führungsbereich 4a und gelangt somit vollständig in den Laufbereich 4b, in dem er mit geringer Reibung verschoben werden kann. Dies insbesondere, wenn, wie es bevorzugt wird, das Maß W (
Wird der Schieber 8 hingegen zum Schließen des Fadenraums auf den Haken 3 hin bewegt, hebt sich der Schieber 8 beim Übergang von dem Laufbereich 4b in den Führungsbereich 4a zunächst etwas an, so dass seine Gleitkante 34 auf die Boden-Führungsfläche 16 gelangt. Außerdem gelangen die Flanken 31, 32 der Schieberfedern 11, 12 in den Führungsbereich 4a, der enger ist als der übrige Schieberschlitz 4. Damit erfährt der Schieber 8 durch den Führungsbereich 4a eine präzise Zentrierung. Die Schieberfedern 11, 12 liegen federnd unter Vorspannung an den Innenflächen 17, 18 an. Auf den Fadenaufnahmeabschnitt 33 wirkende Seitenkräfte, wie sie durch Schrägzug von Maschen auftreten können, werden durch die Vorspannung der Schieberfedern aufgenommen und führen nicht zu einer Fehlzentrierung des Schiebers 8. Somit kann der enge Trichter 28 präzise über die schlanke Spitze des Hakens 3 geschoben werden, ohne diesen zu verfehlen. Die Gefahr, dass ein freies Ende 26, 27 einer Schieberfeder 11, 12 stumpf auf die Hakenspitze stößt oder gar an der falschen Seite vorbeiläuft ist somit nicht vorhanden. Die Schiebernadel arbeitet somit trotz verminderter Reibung des Schiebers 8 mit einer verbesserten Führung desselben und somit mit einer erhöhten Präzision.If, on the other hand, the
Durch die Verengung des Schieberschlitzes 4 in dem Führungsbereich 4a und die seitliche Ausbauchung der Schieberfedern 11, 12 kann ein weiterer Effekt bewirkt werden, der in den
In
In
Eine Schiebernadel 1 ist mit einem Schieber 8 versehen, der zwei Schieberfedern 11, 12 aufweist. Diese sind in einem sich unmittelbar an ihren Einführtrichter 28 anschließenden Bereich voneinander weg gewölbt. Die Schiebernadel weist einen Schieberschlitz 4 auf, der an seinem Eingang 15 zunächst relativ eng ist, so dass hier ein Führungsbereich 4a festgelegt ist. Im Anschluss weitet sich der Schieberschlitz 4, so dass ein Laufbereich 4b festgelegt ist. Die seitliche Ausbauchung der Schieberfedern 11, 12 ist so bemessen, dass der Schieber 8 in dem Laufbereich 4b freigängig läuft und in dem Führungsbereich 4a ohne seitliches Spiel geführt ist. Die Schiebernadel 1 arbeitet auch bei seitlich auf den Schieber 8 einwirkenden Zugkräften präzise und benötigt nur eine geringe Öffnungsweite ihres Trichters 28.A slider needle 1 is provided with a
- 11
- Schiebernadelneedle
- 22
- Nadelkörperneedle body
- 33
- Hakenhook
- 44
- Schieberschlitzvane slot
- 4a4a
- Führungsbereichguide region
- 4b4b
- Laufbereichoverflow area
- 6, 76, 7
- SchlitzwändeDiaphragm walls
- 88th
- Schieberpusher
- 11, 1211, 12
- Schieberfedernslider springs
- 1414
- Schieberkörperslider body
- 1515
- StelleJob
- 1616
- Boden-FührungsflächeBottom guide surface
- 17, 1817, 18
- Innenflächeninner surfaces
- 21, 2221, 22
- Innenflächeninner surfaces
- 2323
- StelleJob
- 2424
- Senk-BodenbereichLowering the bottom area
- 2525
- Nadelrückenneedle back
- 26, 2726, 27
- freie Endenfree ends
- 2828
- Trichterfunnel
- 2929
- StelleJob
- 31, 3231, 32
- Flankenflanks
- 3333
- FadenaufnahmeabschnittThread receiving portion
- 3434
- Gleitkantesliding edge
- 3535
- Kanteedge
- 3636
- Schultershoulder
- 37, 3837, 38
- Führungsflächenguide surfaces
- 3939
- SchieberfederspitzeSlider spring tip
- 41, 4241, 42
- Führungsflächenguide surfaces
- W1W1
- Schieberschlitzbreite engSlit slot width narrow
- W2W2
- Schieberschlitzbreite weitSlider slot width wide
- WW
- TrichteraußenbreiteFunnel external width
- TT
- Abstand Haken zu Boden-FührungsflächeDistance hook to ground guide surface
- T2T2
- Abstand Boden-Führungsfläche bis Stelle 29Distance ground guide surface to point 29
Claims (11)
- Slide needle (1), in particular for stitch-forming textile machines,
with a needle body (2), the blade of which bears a hook (3) at one end with a point,
with two parallel slot walls (6, 7) provided on the blade defining between them a slide slot (4) with a width (W1, W2), which corresponds to the distance between the slot walls (6, 7),
wherein the slide slot (4) has an inlet (15), which lies opposite the hook (3), and extends away from the inlet (15),
with a slider (8), which has at least two slide springs (11, 12),a. which are bent away from one another at their free legs (26, 27) directed towards the hook (3) in order to form a funnel (28) open towards the hook (3) extending from a contact point (29),b. which adjoining the contact point (29) are bent away from one another at a location (31, 32) lying opposite the funnel (28), andc. which are arranged in the slide slot (4) on the hook (3) to be displaceable towards and away from this,characterised in that at at least one location located close to the inlet (15), the width (W1) of the slide slot (4) is smaller than the width (W2) at at least one location located remote from the inlet (15) measured at the same height relative to the needle back. - Slide needle according to claim 1, characterised in that the slide slot (4) has a base guide surface (16) in its inlet (15) for guidance of the slide springs (11, 12).
- Slide needle according to claim 1, characterised in that the slide needle (1) has a means (16; 37, 38, 41, 42) for causing the slide (8) to penetrate into the slide slot (4) during retraction of the slide (8).
- Slide needle according to claim 1, characterised in that the slide slot (4) has a larger width (W2) above a countersunk base region (24) at full height than in the inlet (15).
- Slide needle according to claim 2, characterised in that above the base guide surface (16) the slot walls (6, 7) have a height (T1) that is less than the height (T) of the slide spring tip (39).
- Slide needle according to claim 3, characterised in that above a countersunk base region (24) the slot walls (6, 7) have a height that is greater than the height of the slide springs (11, 12) in a thread pick-up section (33).
- Slide needle according to claim 1, characterised in that in a front function region used for stitch transfer the slide springs (11, 12) are configured symmetrically to one another.
- Slide needle according to claim 3, characterised in that the means (16; 37, 38, 41, 42) includes guide surfaces (37, 38, 41, 42) provided on the needle body (2) and the slide springs (11, 12), and that the guide surfaces (37, 38, 41, 42) form a guide means, which imparts a lowering movement directed towards the needle back (25) to the slide springs (11, 12) when the slide retracts behind the inlet (15) of the slide slot (4).
- Slide needle according to claim 1, characterised in that the lateral bending of the slide springs (11, 12) is dimensioned such that the slide springs (11, 12) are relaxed in the slide slot (4) in a region (4b) of the slide slot (4) remote from the inlet (15).
- Slide needle according to claim 1, characterised in that the lateral bending of the slide springs (11, 12) is dimensioned such that in the region (4a) of the slide slot (4) close to the inlet (15) the slide springs (11, 12) are compressed in the slide slot (4) by spreading the free ends (26, 27) of the slide springs (11, 12).
- Slide needle according to claim 1, characterised in that the slide springs (11, 12) have a thickness, which decreases towards their respective tips (39).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130364 | 2001-06-23 | ||
DE10130364A DE10130364C1 (en) | 2001-06-23 | 2001-06-23 | needle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1270784A1 EP1270784A1 (en) | 2003-01-02 |
EP1270784B1 true EP1270784B1 (en) | 2008-03-05 |
Family
ID=7689224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02011023A Expired - Lifetime EP1270784B1 (en) | 2001-06-23 | 2002-05-17 | Compound needle |
Country Status (5)
Country | Link |
---|---|
US (1) | US6598430B2 (en) |
EP (1) | EP1270784B1 (en) |
JP (1) | JP4056803B2 (en) |
KR (1) | KR100821867B1 (en) |
DE (2) | DE10130364C1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100706655B1 (en) * | 2000-10-20 | 2007-04-11 | 가부시키가이샤 시마세이키 세이사쿠쇼 | Composite needle |
DE10335464B4 (en) * | 2003-08-02 | 2006-06-14 | Groz-Beckert Kg | A method of machine stitching with associated stitch forming elements |
EP2581480B1 (en) * | 2011-10-12 | 2018-05-30 | Groz-Beckert KG | Slider needle with improved slider |
DE102013105239A1 (en) * | 2013-05-22 | 2014-11-27 | Groz-Beckert Kg | needle |
CN110438655B (en) * | 2019-08-13 | 2024-04-02 | 宁波慈星股份有限公司 | Compound needle of flat knitting machine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1673634A (en) * | 1927-05-25 | 1928-06-12 | Scott & Williams Inc | Knitting-machine needle |
GB1108527A (en) * | 1966-03-05 | 1968-04-03 | Monk Sutton In Ashfield Ltd Sa | Improvements in or relating to straight-bar knitting machines and to needles therefor |
US3584481A (en) * | 1969-03-06 | 1971-06-15 | Teihichi Kayashi | Knitting needle for transferring stitches |
GB1339355A (en) * | 1971-06-23 | 1973-12-05 | Stibbe Monk Development Ltd | V-bed knitting machines |
DD114840A1 (en) | 1974-09-04 | 1975-08-20 | ||
DD139432B1 (en) * | 1978-10-20 | 1980-12-10 | Manfred Schneider | METHOD AND CHAIN EQUIPMENT FOR PRODUCING A PATTERNED POLSCHLINGENGEWIRKES |
DE3143743C2 (en) * | 1981-11-04 | 1985-01-24 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Compound needle for warp knitting machines |
DE3151150C2 (en) * | 1981-12-23 | 1984-09-13 | Universal Maschinenfabrik Dr. Rudolf Schieber GmbH & Co KG, 7081 Westhausen | Compound needle |
DE4430705A1 (en) * | 1994-08-30 | 1996-03-07 | Scheller Gmbh | Knitting machine |
US5937673A (en) * | 1997-05-01 | 1999-08-17 | Shima Seiki Manufacturing, Ltd. | Compound needle of a flat knitting machine |
DE19913822C2 (en) * | 1999-03-26 | 2001-02-22 | Groz Beckert Kg | Slide needle with split slide |
DE60037246T2 (en) * | 1999-04-15 | 2008-10-09 | Groz-Beckert Kg | SLIDING NEEDLE FOR KNITTING MACHINE |
TW477845B (en) * | 1999-10-27 | 2002-03-01 | Shima Seiki Mfg | Guide mechanism of knitting member and compound needle assembling the guide mechanism therein |
-
2001
- 2001-06-23 DE DE10130364A patent/DE10130364C1/en not_active Expired - Fee Related
-
2002
- 2002-05-17 EP EP02011023A patent/EP1270784B1/en not_active Expired - Lifetime
- 2002-05-17 DE DE50211807T patent/DE50211807D1/en not_active Expired - Lifetime
- 2002-06-20 JP JP2002180360A patent/JP4056803B2/en not_active Expired - Lifetime
- 2002-06-21 KR KR1020020034791A patent/KR100821867B1/en active IP Right Grant
- 2002-06-21 US US10/175,862 patent/US6598430B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10130364C1 (en) | 2003-02-13 |
KR20030001278A (en) | 2003-01-06 |
DE50211807D1 (en) | 2008-04-17 |
EP1270784A1 (en) | 2003-01-02 |
US6598430B2 (en) | 2003-07-29 |
JP2003049350A (en) | 2003-02-21 |
US20030005730A1 (en) | 2003-01-09 |
KR100821867B1 (en) | 2008-04-16 |
JP4056803B2 (en) | 2008-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19913822C2 (en) | Slide needle with split slide | |
CH661539A5 (en) | FLAT KNITTING MACHINE. | |
DE60207454T2 (en) | Sliding needle for knitting machines | |
EP0131709B1 (en) | Slide needle for a stitch-forming textile machine | |
EP3619773B1 (en) | Connection terminal | |
EP1270784B1 (en) | Compound needle | |
DE3310723C1 (en) | Thread guide for flat knitting machines | |
DE202017102149U1 (en) | Zipper slider unit and spring leaf of the same | |
EP1094139A1 (en) | Slider needle with asymmetrical formed slider | |
DE4231015A1 (en) | Cpd. needle for knitting machine - has shaped formations on working pts. to reduce wear and possible breakages | |
DE69211810T2 (en) | LURE DEVICE FOR A ZIPPER | |
EP2096200A1 (en) | Transfer needle with internal spring tip | |
EP2999815B1 (en) | Sliding-tongue needle | |
EP1270785B1 (en) | Compound needle with improved slider | |
EP1416078B1 (en) | Stitch forming element for weft or warp knitting machine | |
EP3643823A1 (en) | Warp knitting machine compound needle | |
EP0073380A1 (en) | Stamped knitting tool for knitting machines | |
EP1619282B1 (en) | Needle for a stitchforming system | |
EP1887117B1 (en) | Latch needle for stitch forming textile machine | |
DE3725685A1 (en) | SLIDER FOR A CUTTING KNIFE, ESPECIALLY FOR A CUTTING AND / OR CUTTING KNIFE | |
EP1514964B1 (en) | Latch needle | |
EP3012363B1 (en) | Machine knitting needle, arrangement for stitch formation, and use of this arrangement in a process on a knitting machine | |
EP2067888B1 (en) | Knitting needle | |
EP1464746B1 (en) | Needle for knitting machines and method of splitting a stitch | |
DE19517602C1 (en) | Spring needle for crocheting machines, etc. |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GROZ-BECKERT KG Owner name: SHIMA SEIKI MFG., LTD |
|
17P | Request for examination filed |
Effective date: 20030624 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MORITA, TOSHIAKI Inventor name: GOMERINGER, NORBERT Inventor name: RUOFF, KLAUS Inventor name: DIETZ, ANDREAS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50211807 Country of ref document: DE Date of ref document: 20080417 Kind code of ref document: P |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20081208 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20210412 Year of fee payment: 20 Ref country code: DE Payment date: 20210531 Year of fee payment: 20 Ref country code: IT Payment date: 20210412 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20210505 Year of fee payment: 20 Ref country code: GB Payment date: 20210421 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50211807 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20220516 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20220516 |