EP0424717B1 - Flat knitting machine - Google Patents
Flat knitting machine Download PDFInfo
- Publication number
- EP0424717B1 EP0424717B1 EP90119232A EP90119232A EP0424717B1 EP 0424717 B1 EP0424717 B1 EP 0424717B1 EP 90119232 A EP90119232 A EP 90119232A EP 90119232 A EP90119232 A EP 90119232A EP 0424717 B1 EP0424717 B1 EP 0424717B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- edge
- loop
- forming
- knitting machine
- needle
- 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
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- 238000009940 knitting Methods 0.000 title claims description 38
- 239000004744 fabric Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/10—Needle beds
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/06—Sinkers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
- D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
Definitions
- the invention relates to a flat knitting machine with two needle beds, in which pivotable between the needles and controllable with lock parts of the slide, a thread-influencing edge boards are arranged so that the boards of the two needle beds face each other and in a front pivot position with opposing projections form bridges spanning the ridge of the flat knitting machine.
- a flat knitting machine of the type mentioned is known from DE-PS 36 09 539 by the applicant.
- the bridges in the comb gap that can be formed by means of the sinkers prevent stitches from being pulled up during the needle drive.
- the boards act as hold-downs, make the use of strippers unnecessary and also form there the wedge edge for the processed thread.
- the lock curve for the control of the sinkers is designed so that the sinker assumes a desired position for each of the different functions intended for it in the course of stitch formation.
- the adjustable sinkers require a quick change to different functional positions, whereby compromises are essential that the sinker cannot always assume or maintain the optimal position for a desired function.
- the invention has for its object to avoid the above-mentioned compromise constraints and to create a flat knitting machine that allows optimal and safe thread processing even at high operating speeds, in which the adjustable sinkers remain controllable in the best operating positions for obtaining optimal effects, without thereby other operating functions be affected.
- the object is achieved according to the invention with a flat knitting machine of the type mentioned at the outset in that the adjustable sinkers, viewed in the longitudinal direction of the needle beds, are each arranged between an associated needle and an immovable, known per se knitting stitching web running at an angle to the knitting pull-off direction , and that the edge of the sinkers influencing the thread runs below its bridge-forming projection from the comb gap to behind a stitch wiping edge of the needle bed and in each section and in each Adjustment of the sinkers runs at an angle to the direction of knitting deduction, which deviates from the corresponding angle of the fixed curling edge of the stitch formation web.
- the advantage is achieved that the shape and the movement of the sinkers in the region of their edges influencing the thread can be better adapted to the thread guide and stitch hold-down function.
- the fixed stitch-forming webs create a curling edge that remains fixed on an optimal course regardless of the adjustment movements of the sinkers.
- the circuit board which is at least predominantly relieved of the curling function, can be used to a greater extent to hold down stitches and to favor the thread insert in the needles, which is particularly advantageous when working with tongue-less needles.
- the board for opening and closing the comb gap can be controlled more independently and more precisely than was previously the case.
- the edge of the sinkers influencing the thread can be divided into at least two sections of different angular position with respect to the direction of knitting withdrawal be, of which at least the front section beginning at the bridge-forming projection of the board can be moved into the comb gap in the event of an adjustment movement of the board beyond the wedge edge of the stitch-forming web.
- the front section of the edge of the sinkers influencing the thread, with the bridge-forming sinker protrusion set back behind the curling edge of the stitch formation web can run at least approximately at the same distance as the thread take-up groove of the needle head from the sole of the needle guide channel of the needle bed and thereby secure thread insertion even in the case of high ones Ensure operating speeds.
- the movable sinkers can also support the stitch withdrawal, in that they can also be moved downwards during their adjustment movement into the comb gap. With regard to their influence on the stitches formed, the sinkers are no longer restricted to the function of holding down the stitches in the comb gap.
- the stitch-forming webs in the knitting pull-off direction can have an undercut edge running in the direction of the stitch-knocking edge of the needle bed, and the second section of the edge of the sinkers influencing the thread can, in their bridge-forming position, run at least approximately parallel to the undercut edge of the stitch-forming webs.
- the edge of the adjustable sinkers which influences the thread does not protrude beyond the undercut edge of the stitch-forming webs and comes to rest there Stitches do not interfere, and on the other hand, the displacement movement of these stitches is supported along the undercut edge in the direction of the stitch wiping edge of the needle bed.
- the stitch formation webs can have a projection directed into the comb gap between their wedge edge and their undercut edge, which promotes, among other things, the orderly thread laying on the wedge edge in the case of multi-thread knitting.
- FIG. 1 shows the dotted line of the edge region of a stationary stitch-forming web 31, which also defines the comb gap 30 between the two needle beds of a flat knitting machine.
- Fig. 1 also shows in section a parallel to the comb gap 30 through openings 39, 39 'of the stitch-forming webs 31 through the entire length of a needle bed passed wire 32 which forms the stitch wiping edge of the needle bed.
- a projection 33.1 of a adjustable plate 33 cooperating with the stitch formation web 31 is shown with a solid line in a first position and is shown with a dash-dotted line in a position in which it is advanced to the center of the comb gap 30 indicated by a line 34.
- Line 34 also designates the knitting direction of the machine.
- a wedge edge 35 is formed in an area above the wire 32 forming the stitch wiping edge, which extends at an acute angle to the knitting pull-off direction 34.
- This wedge edge 35 is adjoined at the bottom by a projection 36 directed into the comb gap 30 and then by an undercut edge 37 running in the direction of the wire 32.
- an edge 38 is formed, which is divided into two sections 38.1 and 38.2. With this edge 38, a thread 40 lying against the wedge edge 35 of the stitch-forming web 31 can be detected when the projection 33 can be moved downward in the direction of the fabric withdrawal direction 34.
- the edge 38 of the circuit board 33 extends from the comb gap 30 to behind the wire 32 of the needle bed forming the stitch wiping edge and forms with each section and in each adjustment position of the circuit board 33 an angle to the embroidery pull-off direction 34 which is different from the angle that the wedge edge 35 of the stationary one Knitting web 31 forms with the knitting pull-off direction 34, is different.
- the rear edge section 38.2 runs approximately parallel to the undercut edge 37 of the stitch-forming web 31.
- FIG. 1 shows a needle with its needle back 55 resting on the sole of a needle guide channel of a needle bed and the contour of its needle head 49 with a dash-dotted line.
- the front section 38.1 of its edge 38 runs at a distance X from the needle back and at the height of the center of the needle head 49, so that a circuit board projection 33.1 moves forward slightly into the comb gap 30 the thread placed can be controlled to the height of the needle head.
- FIGS. 2a-2e show the two needle beds 41 and 42 of a flat knitting machine with their stitch-forming webs 31 delimiting the comb gap 30 one of these stitch-forming webs 31 interacting and facing each other in pairs, pivotable plates 33 are shown completely.
- Fig. 2a shows a latch needle 43 during its expulsion movement in the direction of the arrow 44.
- the knitted fabric 45 hanging in the comb gap is prevented by the expelling latch needle 43 by the projections 33.1 of the sinkers 33 moved into the comb gap 30, which form bridges closing the comb gap 30.
- the last formed "old” stitch 46 slides back over the shaft of the needle 43 in a known manner while opening the needle tongue 47.
- FIG. 2b shows how the old stitch 46 resting on the stitch wiping edge 32 has closed the latch needle 47.
- FIG. 2d shows the latch needle 43 in its maximum withdrawal position, in which the needle head 49 has passed through the old stitch 46 and has drawn a new stitch 50 from the thread 40 that came to rest on the wedge edge 35 of the stitch-forming web 31.
- FIG. 2d shows that this new stitch 50 has only been drawn into the old stitch 46 over part of its length.
- the full retraction is then effected by the goods take-off device, not shown, which exerts a tensile force on the knitted fabric 45 in the direction of the arrow 51 shown in FIG. 2d.
- Throwing off the thread 40 from the wedge edge 35 of the stitch-forming webs 31 is promoted by the adjustable sinkers 33, which according to FIG. 2e are then pivoted again in the direction of the arrows 52 shown in FIG. 2e, so that their projections 33.1 with their edge 38 ( Fig. 1) Grasp the thread 40 and move it downward into the comb gap before the latch needles 43 begin their expulsion movement again.
- the thread is initially only influenced by the latch needle and the stationary stitch-forming webs, and only at the end, over a short distance, is the old stitch additionally influenced by the action of friction. Then the adjustable sinkers, the fabric take-off and the stitching edge on the newly formed stitch are effective, but only small and, above all, evenly distributed frictional forces can be effective. These frictional forces can be further reduced by the fact that the wire 32 of the needle beds forming the stitch wiping edge receives a rotary drive.
- the electric motor 53 can be a controllable and switchable stepper motor.
- the stitch wiping edge of a needle bed can also consist of wire or tube sections which are freely rotatable between adjacent stationary stitch forming webs 31 and which can rotate with one stitch over the stitch wiping edge.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Description
Die erfindung betrifft eine Flachstrickmaschine mit zwei Nadelbetten, in denen zwischen den Nadeln verschwenkbare und mit Schloßteilen des Schlittens steuerbare, eine den Faden beeinflussende Kante aufweisende Platinen so angeordnet sind, daß die Platinen der beiden nadelbetten einander gegenüberstehen und in einer vorderen Schwenkstellung mit sich gegenüberliegenden Vorsprüngen den Kammspalt der Flachstrickmaschine überspannende Brücken bilden.The invention relates to a flat knitting machine with two needle beds, in which pivotable between the needles and controllable with lock parts of the slide, a thread-influencing edge boards are arranged so that the boards of the two needle beds face each other and in a front pivot position with opposing projections form bridges spanning the ridge of the flat knitting machine.
Eine Flachstrickmaschine der eingangs genannten Art ist durch die DE-PS 36 09 539 der Anmelderin bekannt. Die mittels der Platinen bildbaren Brücken im Kammspalt verhindern ein Hochziehen von Maschen während des Nadelaustriebs. Die Platinen wirken als Niederhalter, machen den Einsatz von Einstreifern entbehrlich und bilden dort auch die Kulierkante für den verarbeiteten Faden. Die Schloßkurve für die Steuerung der Platinen wird dabei so ausgebildet, daß die Platine für jede der ihr im Verlaufe einer Maschenbildung zugedachten unterschiedlichen Funktionen eine gewünschte Stellung einnimmt. Bei Kombinationsschlössern moderner Strickmaschinen, in denen Strick- und Maschenumhängesysteme zusammengefaßt sind, wird von den verstellbaren Platinen ein rascher Wechsel in verschiedene Funktionsstellungen gefordert, wobei Kompromisse dahingehend unumgänglich sind, daß die Platine nicht immer die für eine gewünschte Funktion optimale Stellung einnehmen oder beibehalten kann.A flat knitting machine of the type mentioned is known from DE-PS 36 09 539 by the applicant. The bridges in the comb gap that can be formed by means of the sinkers prevent stitches from being pulled up during the needle drive. The boards act as hold-downs, make the use of strippers unnecessary and also form there the wedge edge for the processed thread. The lock curve for the control of the sinkers is designed so that the sinker assumes a desired position for each of the different functions intended for it in the course of stitch formation. In combination locks of modern knitting machines, in which knitting and stitch transfer systems are combined, the adjustable sinkers require a quick change to different functional positions, whereby compromises are essential that the sinker cannot always assume or maintain the optimal position for a desired function.
Der Erfindung liegt die Aufgabe zugrunde, den erwähnten Kompromißzwängen auszuweichen und eine Flachstrickmaschine zu schaffen, die auch bei hohen Betriebsgeschwindigkeiten eine optimale und sichere Fadenverarbeitung erlaubt, bei welcher die verstellbaren Platinen in für die Erlangung optimaler Wirkungen beste Betriebsstellungen steuerbar bleiben, ohne daß dadurch andere Betriebsfunktionen beeinträchtigt werden.The invention has for its object to avoid the above-mentioned compromise constraints and to create a flat knitting machine that allows optimal and safe thread processing even at high operating speeds, in which the adjustable sinkers remain controllable in the best operating positions for obtaining optimal effects, without thereby other operating functions be affected.
Die gestellte Aufgabe wird mit einer Flachstrickmaschine der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß die verstellbaren Platinen in Längsrichtung der Nadelbetten gesehen jeweils zwischen einer ihnen zugeordneten Nadel und einem unbeweglichen, an sich bekannten, eine unter einem Winkel zur Gestrickabzugsrichtung verlaufende Kulierkante aufweisenden Maschenbildungssteg angeordnet sind, und daß die den Faden beeinflussende Kante der Platinen unterhalb ihres brückenbildenden Vorsprunges vom Kammspalt weg bis hinter eine Maschenabschlagkante des Nadelbettes verläuft und in jedem Abschnitt und in jeder Verstellage der Platinen unter einem Winkel zur Gestrickabzugsrichtung verläuft, der von dem entsprechenden Winkel der feststehenden Kulierkante des Maschenbildungssteges abweicht.The object is achieved according to the invention with a flat knitting machine of the type mentioned at the outset in that the adjustable sinkers, viewed in the longitudinal direction of the needle beds, are each arranged between an associated needle and an immovable, known per se knitting stitching web running at an angle to the knitting pull-off direction , and that the edge of the sinkers influencing the thread runs below its bridge-forming projection from the comb gap to behind a stitch wiping edge of the needle bed and in each section and in each Adjustment of the sinkers runs at an angle to the direction of knitting deduction, which deviates from the corresponding angle of the fixed curling edge of the stitch formation web.
Mit einer Ausbildung und Anordnung der maschenbildenden Werkzeuge der Flachstrickmaschine gemäß der Erfindung wird der Vorteil erzielt, daß die Formgestaltung und die Bewegung der Platinen im Bereich ihrer den Faden beeinflussenden Kanten besser an die Fadenleit- und Maschenniederhaltefunktion angepaßt werden können. Durch die feststehenden Maschenbildungsstege wird eine Kulierkante geschaffen, die auf einen optimalen Verlauf unabhängig von den Verstellbewegungen der Platinen festgelegt bleibt. Die von der Kulierfunktion mindestens überwiegend entlastete Platine läßt sich in stärkerem Maße zum Niederhalten von Maschen und zur Begünstigung der Fadeneinlage in die Nadeln einsetzen, was insbesondere beim Arbeiten mit zungenlosen Nadeln von großem Vorteil ist. Beim Umhängen von Maschen läßt sich die Platine zum Öffnen und Schließen des Kammspaltes unabhängiger und genauer steuern, als dies bisher der Fall war. So wird im Zusammenspiel der den Faden beeinflussenden Kanten der beweglichen Platinen mit der unbewegten Kulierkante der Maschenbildungsstege während der Nadelbewegung eine optimale Beeinflussung des Fadens und der gebildeten Maschen erreicht. Eine Störung des Kuliervorganges durch die bewegten Platinen läßt sich vollstängid ausschließen.With an embodiment and arrangement of the stitch-forming tools of the flat knitting machine according to the invention, the advantage is achieved that the shape and the movement of the sinkers in the region of their edges influencing the thread can be better adapted to the thread guide and stitch hold-down function. The fixed stitch-forming webs create a curling edge that remains fixed on an optimal course regardless of the adjustment movements of the sinkers. The circuit board, which is at least predominantly relieved of the curling function, can be used to a greater extent to hold down stitches and to favor the thread insert in the needles, which is particularly advantageous when working with tongue-less needles. When transferring meshes, the board for opening and closing the comb gap can be controlled more independently and more precisely than was previously the case. In this way, the interaction of the edges of the movable sinkers which influence the thread with the unmoving wedge edge of the stitch formation webs during the needle movement optimally influences the thread and the stitches formed. A disturbance of the culverting process by the moving boards can be completely ruled out.
Vorteilhafterweise kann die den Faden beeinflussende Kante der Platinen in mindestens zwei Abschnitte unterschiedlicher Winkellage zur Gestrickabzugsrichtung gegliedert sein, von denen mindestens der am brückenbildenden Vorsprung der Platine beginnende vordere Abschnitt bei einer Verstellbewegung der Platine über die Kulierkante des Maschenbildungssteges hinaus in den Kammspalt hineinbewegbar ist. Zweckmäßig kann der vordere Abschnitt der den faden beeinflussenden kante der Platinen bei hinter die Kulierkante des Maschenbildungssteges zurückverstelltem brückenbildenden Platinenvorsprung mindestens annähernd im gleichen Abstand wie die Fadenaufnahmekehle des Nadelkopfes von der Sohle des Nadelführungskanales des Nadelbettes verlaufen und dadurch ein sicheres Fadeneinlegen in den Nadelkopf auch bei hohen Betriebsgeschwindigkeiten gewährleisten.Advantageously, the edge of the sinkers influencing the thread can be divided into at least two sections of different angular position with respect to the direction of knitting withdrawal be, of which at least the front section beginning at the bridge-forming projection of the board can be moved into the comb gap in the event of an adjustment movement of the board beyond the wedge edge of the stitch-forming web. Appropriately, the front section of the edge of the sinkers influencing the thread, with the bridge-forming sinker protrusion set back behind the curling edge of the stitch formation web, can run at least approximately at the same distance as the thread take-up groove of the needle head from the sole of the needle guide channel of the needle bed and thereby secure thread insertion even in the case of high ones Ensure operating speeds.
Bei einer erfindungsgemäß ausbegildeten Flachstrickmaschine können die beweglichen Platinen auch den Maschenabzug unterstützen, indem sie bei ihrer Verstellbewegung in den Kammspalt hinein gleichzeitig auch abwärts bewegbar sind. Die Platinen sind also im Hinblick auf ihren Einfluß auf die gebildeten Maschen nicht mehr auf die Funktion des Niederhaltens der Maschen im Kammspalt beschränkt.In the case of a flat knitting machine designed according to the invention, the movable sinkers can also support the stitch withdrawal, in that they can also be moved downwards during their adjustment movement into the comb gap. With regard to their influence on the stitches formed, the sinkers are no longer restricted to the function of holding down the stitches in the comb gap.
Vorteilhafterweise können die Maschenbildungsstege in Gestrickabzugsrichtung nach ihrer Kulierkante eine in Richtung auf die Maschenabschlagkante des Nadelbettes verlaufende Hinterschnittkante aufweisen, und der zweite Abschnitt der den Faden beeinflussenden Kante der Platinen kann in deren brückenbildender Stellung mindestens annähernd parallel zu der Hinterschnittkante der Maschenbildungsstege verlaufen. Dadurch läßt sich einerseits erreichen, daß die den Faden beeinflussende Kante der verstellbaren Platinen nicht über die hinterschnittkante der Maschenbildungsstege vorsteht und dort zur Anlage kommende Maschen nicht stört, und wird anderseits die Verschiebebewegung dieser Maschen entlang der Hinterschnittkante in Richtung auf die Maschenabschlagkante des nadelbettes unterstüzt. Die Maschenbildungsstege können zwischen ihrer Kulierkante und ihrer Hinterschnittkante einen in den Kammspalt gerichteten Vorsprung aufweisen, der u.a. bei mehrfädigem Stricken das geordnete Fadenlegen an der Kulierkante begünstigt.Advantageously, the stitch-forming webs in the knitting pull-off direction can have an undercut edge running in the direction of the stitch-knocking edge of the needle bed, and the second section of the edge of the sinkers influencing the thread can, in their bridge-forming position, run at least approximately parallel to the undercut edge of the stitch-forming webs. This means on the one hand that the edge of the adjustable sinkers which influences the thread does not protrude beyond the undercut edge of the stitch-forming webs and comes to rest there Stitches do not interfere, and on the other hand, the displacement movement of these stitches is supported along the undercut edge in the direction of the stitch wiping edge of the needle bed. The stitch formation webs can have a projection directed into the comb gap between their wedge edge and their undercut edge, which promotes, among other things, the orderly thread laying on the wedge edge in the case of multi-thread knitting.
Nachfolgend wird ein Ausführungsbeispiel einer erfindungsgemäß ausgebildeten Flachstrickmaschine anhand der beiliegenden Zeichnung näher erläutert.An exemplary embodiment of a flat knitting machine designed according to the invention is explained in more detail below with reference to the accompanying drawing.
Im einzelnen zeigen:
- Fig. 1
- den den Kammspalt einer Flachstrickmaschine begrenzenden Bereich eines Maschenbildungssteges und einen Teil einer mit diesem Maschenbildungssteg zusammenwirkenden Platine;
- Fig. 2a - 2e
- einen Querschnitt durch den Maschenbildungsbereich des Nadelbettes einer Flachstrickmaschine mit Platinen und mit der Nadel eines der beiden Nadelbetten in fünf verschiedenen Stellungen beim Strickvorgang;
- Fig. 3
- eine perspektivische Darstellung eines Endes der Nadelbetten.
- Fig. 1
- the area of a stitch formation web delimiting the comb gap of a flat knitting machine and part of a plate interacting with this stitch formation web;
- 2a-2e
- a cross section through the stitch formation area of the needle bed of a flat knitting machine with sinkers and with the needle of one of the two needle beds in five different positions during the knitting process;
- Fig. 3
- a perspective view of one end of the needle beds.
In Fig. 1 ist mit einer punktierten Linie der den Kammspalt 30 zwischen den beiden Nadelbetten einer Flachstrickmaschine mitbegrenzende Randbereich eines stationären Maschenbildungssteges 31 dargestellt. Fig. 1 zeigt außerdem im Schnitt einen parallel zum Kammspalt 30 durch Öffnungen 39, 39′ der Maschenbildungsstege 31 über die ganze Länge eines Nadelbettes hindurchgeführten Draht 32, der die Maschenabschlagkante des Nadelbettes bildet. Es können mehrer Öffnungen 39, 39′ mit unterschiedlichem Abstand von der Kulierkante 35 vorgesehen sein. Von einer mit dem Maschenbildungssteg 31 zusammenwirkenden verstellbaren Platine 33 ist ein Vorsprung 33.1 mit durchgezogener Linie in einer ersten Stellung dargestellt und mit einer strichpunktierten Linie in einer Stellung gezeigt, in welcher er bis zu der durch eine Linie 34 angezeigten Mitte des Kammspaltes 30 vorbewegt ist. Die Linie 34 bezeichnet gleichzeitig die Gestrickabzugsrichtung der Maschine. An dem stationären Maschenbildungssteg 31 ist in einem oberhalb des die Maschenabschlagkante bildenden Drahtes 32 liegenden Bereich eine Kulierkante 35 ausgebildet, die unter einem spitzen Winkel zu der Gestrickabszugsrichtung 34 verläuft. An diese Kulierkante 35 schließen sich nach unten ein in den Kammspalt 30 gerichteter Vorsprung 36 und anschließend eine in Richtung auf den Draht 32 verlaufende Hinterschnittkante 37 an.1 shows the dotted line of the edge region of a stationary stitch-forming
An der Unterseite des in den Kammspalt 30 vorbewegbaren Vorsprunges 33.1 der verstellbar gelagerten Platine 33 ist eine Kante 38 ausgebildet, die in zwei Abschnitte 38.1 und 38.2 gegliedert ist. Mit dieser Kante 38 ist ein an der Kulierkante 35 des Maschenbildungssteges 31 anliegender Faden 40 beim Vorbewegen des Vorsprunges 33.1 erfaßbar und nach unten in Richtung der Gestrickabzugsrichtung 34 bewegbar. Die Kante 38 der Platine 33 verläuft vom Kammspalt 30 weg bis hinter den die Maschenabschlagkante bildenden Draht 32 des Nadelbettes und bildet mit jedem Abschnitt und in jeder Verstellage der Platine 33 einen Winkel zur Gestickabzugsrichtung 34, der von dem Winkel, den die Kulierkante 35 des stationären Maschenbildungssteges 31 mit der Gestrickabzugsrichtung 34 bildet, verschieden ist. In der den Kammspalt überbrückenden, mit der strichpunktierten Linie eingeszeichneten Stellung der Platine 33 verläuft der hintere Kantenabschnitt 38.2 etwa parallel zur Hinterschnittkante 37 des Maschenbildungssteges 31.On the underside of the protrusion 33.1 of the adjustably mounted
In die Fig. 1 ist eine Nadel mit ihrem auf der Sohle eines Nadelführungskanales eines Nadelbettes aufliegenden Nadelrücken 55 und der Kontur ihres Nadelkopfes 49 mit einer strichpunktierten Linie angedeutet. In der mit einer ausgezogenen Linie dargestellten Stellung der Platine 33 verläuft der vordere Abschnitt 38.1 ihrer Kante 38 im Abstand X vom Nadelrücken und auf der Höhe der Mitte des Nadelkopfes 49, so daß sich mit einem leicht nach vorn in den Kammspalt 30 vorbewegten Platinenvorsprung 33.1 ein vorgelegter Faden auf die Höhe des Nadelkopfes steuern läßt.1 shows a needle with its needle back 55 resting on the sole of a needle guide channel of a needle bed and the contour of its
Die Relativstellung der verstellbaren Platinen 33 zu den in bekannte Weise in Längsrichtung verstellbaren, in Fig. 1 nur mit einer strichpunktierten Linie angedeuteten Nadeln und zu den stationären Maschenbildungsstegen 31 bei der Maschenbildung ist aus den Fig. 2a - 2e ersichtlich. Alle Figuren 2 zeigen die beiden Nadelbetten 41 und 42 einer Flachstrickmaschine mit ihren den Kammspalt 30 begrenzenden Maschenbildungsstegen 31. Die mit jeweils einem dieser Maschenbildungsstege 31 zusammenwirkenden und sich paarweise gegenüberstehenden, verschwenkbaren Platinen 33 sind vollständig dargestellt.The relative position of the
Fig. 2a zeigt eine Zungennadel 43 bei ihrer Austriebsbewegung in Richtung des eingezeichneten Pfeiles 44. Bei dieser Austriebsbewegung wird ein Hochziehen des in den Kammspalt hängenden Gestrickes 45 durch die austreibende Zungennadel 43 durch die in den Kammspalt 30 hineinbewegten Vorsprünge 33.1 der Platinen 33 verhindert, die den Kammspalt 30 schließende Brücken bilden. Die zuletzt gebildete "alte" Masche 46 rutscht über den Schaft der Nadel 43 in bekannter Weise unter Öffnen der Nadelzunge 47 nach hinten.Fig. 2a shows a
Wenn anschließend die Abzugsbewegung der Nadel gemäß Fig. 2b in Richtung des dort eingezeichneten Pfeiles 48 beginnt, wird die alte Masche 46 gegen die Maschenabschlagkante gehalten, die durch den im Zusammenhang mit Fig. 1 beschriebenen Draht 32 gebildet wird. Von einem nicht dargestellten Fadenführer wird ein neuer Faden 40 vorgelegt, der bei der weiteren Abzugsbewegung der Nadel 43 vom Nadelkopf 49 erfaßt wird, wie aus Fig. 2c ersichtlich ist. Das sichere Erfassen des Fadens 40 wird durch den Vorsprung 33.1 der Platinen 33 begünstigt. Vor Faden auf die Höhe des Nadelkopfes 49 niederhält, der den Beginn der Nadelabzugsbewegung sind die Platinen 33 unter Freigabe des Kammspaltes 30 zurückgeschwenkt worden, wie aus Fig. 2b und Fig. 2c ersichtlich ist. Fig. 2c zeigt auch, wie die an der Maschenabschlagkante 32 anliegende alte Masche 46 die Zungennadel 47 geschlossen hat.When the withdrawal movement of the needle according to FIG. 2b in the direction of the
Fig. 2d zeigt die Zungennadel 43 in ihrer maximalen Abzugsstellung, in welcher der Nadelkopf 49 durch die alte Masche 46 hindurchgefahren ist und aus dem an der Kulierkante 35 des Maschenbildungssteges 31 zur Anlage gekommenen Faden 40 eine neue Masche 50 gezogen hat. Fig. 2d läßt erkennen, daß diese neue Masche 50 nur über ein Teil ihrer Länge in die alte Masche 46 eingezogen ist. Den vollen Einzug bewirkt dann die nicht dargestellte Warenabzugseinrichtung, die in Richtung des in Fig. 2d eingezeichneten Pfeiles 51 auf das Gestrick 45 eine Zugkraft ausübt. Das Abwerfen des Fadens 40 von der Kulierkante 35 der Maschenbildungsstege 31 wird durch die verstellbaren Platinen 33 begünstigt, die gemäß Fig. 2e anschließend wieder in Richtung der in Fig. 2e eingezeichneten Pfeile 52 verschwenkt werden, so daß ihre Vorsprünge 33.1 mit ihrer Kante 38 (Fig. 1) den Faden 40 erfassen und nach unten in den Kammspalt bewegen, bevor die Zungennadeln 43 wieder ihre Austriebsbewegung beginnen.2d shows the
Bei der dargestellten Flachstrickmaschine wird also bei der Bildung einer Masche der Faden zunächst nur durch die Zungennadel und die stationären Maschenbildungsstege und erst am Schluß auf einer kurzen Strecke zusätzlich von der alten Masche durch Reibungseinwirkung beeinflußt. Anschließend werden die verstellbaren Platinen, der Warenabzug und auch die Maschenabschlagkante an der neu gebildeten Masche wirksam, wobei aber nur geringe und vor allem gleichmäßig auf die Masche verteilte Reibungskräfte wirksam werden können. Diese Reibungskräfte können noch dadurch vermindert werden, daß der die Maschenabschlagkante bildende Draht 32 der Nadelbetten einen Drehantrieb erhält.In the flat knitting machine shown, when a stitch is formed, the thread is initially only influenced by the latch needle and the stationary stitch-forming webs, and only at the end, over a short distance, is the old stitch additionally influenced by the action of friction. Then the adjustable sinkers, the fabric take-off and the stitching edge on the newly formed stitch are effective, but only small and, above all, evenly distributed frictional forces can be effective. These frictional forces can be further reduced by the fact that the
Fig. 3 zeigt einen am Ende eines der beiden Nadelbetten 41 angeordneten Elektromotor 53, dessen Abtriebswelle in nicht näher dargestellter Weise mit dem Ende des über die ganze Länge eines Nadelbettes durchgehenden Drahtes 32 verbunden ist. Der Elektromotor 53 kann ein steuerbarer und umschaltbarer Schrittmotor sein. An Stelle eines zwangsweise rotierbaren Drahtes 32 kann die Maschenabschlagkante eines Nadelbettes auch aus jeweils frei drehbar zwischen benachbarten stationären Maschenbildungsstegen 31 gelagerten Draht- oder Rohrabschnitten bestehen, die sich bei einer Bewegung einer Masche über die Maschenabschlagkante mitdrehen können.3 shows an
Claims (10)
- Flat knitting machine with two needle beds, in which there are arranged, between the needles (43) lifters (33) which are horizontally swinging and controllable via clamps in the carriage, and having an edge (38) which affects the threads (40), the said lifters (33) of the two needle beds (41, 42) being arranged in such a way that they are opposite each other and when swung forwards form bridges which span the combing gap (30) of the flat knitting machine via projections (33.1) which face each other, characterised by the fact that the adjustable lifters (33) are arranged, viewed along the needle beds (41, 42) in each case between a needle (43) allocated to it and a fixed known looping ridge, having a looping edge (35) running at an angle to the direction of the knit fabric removal, and the edge (38) of the lifters (33) influencing the threads (40) runs beneath the projection forming the bridge (33.1) from the combing gap (30) until behind a knit stop edge (32) of the needle bed (41, 42) and runs in every section (38.1, 38.2) and in every position of the lifters (33) at an angle to the direction of the knit fabric removal (34), which deviates from the corresponding angle of the fixed looping edge (35) of the loop-forming ridge (31).
- Flat knitting machine as in claim No.1, characterised by the fact that the edge (38) of the lifters (33) influencing the threads (40) is split into at least two sections (38, 38.1) with differing angle positions to the direction of the knit fabric removal (34), of which at least that front section (38.1) commencing at the projection (33.1) forming the bridge of the lifter (33) is capable of movement across into the combing gap (30) across the looping edge (35) of the loop-forming ridge (31) if the lifter (33) is displaced.
- Flat knitting machine as in claim No.2., characterised by the fact that the front section (38.1) of the edge (38) of the lifters (33) influencing the threads (40) is capable of movement into the combing gap (30) and downwards when displaced.
- Flat knitting machine in accordance with claims Nos 1 to 3, characterised by the fact that the front section (38.1) of the edge (38) of the lifters (33) influencing the threads, if the lifter projection (33.1) forming the bridge is displaced backwards behind the looping edge (35) of the loop-forming ridge (31) runs at least approximately at the same distance as the centre of the needle head (49) from the base of the needle guide channel of the needle bed (41, 42) or the back of the needle (55).
- Flat knitting machine in accordance with claims Nos. 1 to 4, characterised by the fact that the loop-forming ridges (31) in the direction of knit fabric removal (34) have after their looping edge (35) a rear cutting edge (37) running in alignment with the loop stop edge (32) of the needle bed (41, 42), and the second section (38.2) of the edge (38) of the lifters (33) influencing the threads (40) when they are in their bridge-forming position runs at least approximately parallel to the rear cutting edge (37) of the loop-forming ridges (31).
- Flat knitting machine in accordance with one of claims Nos. 1 to 5, characterised by the fact that the loop-forming ridges (31) have between their looping edge (35) and their rear cutting edge (37) a projection (36) directed into the combing gap (30).
- Flat knitting machine in accordance with one of claims Nos. 1 to 6, characterised by the fact that the distance between the loop stop edge (32) of the needle bed (41, 42) from the looping edge (35) of the loop-forming ridges (31) can be altered by displacing parts of the machine.
- Flat knitting machine in accordance with one of claims Nos. 1 to 7, characterised by the fact that the loop stop edge (32) between the loop creating ridges (32) is formed by a rod or sleeve on bearings and entirely free to rotate around its longitudinal axis.
- Flat knitting machine in accordance with one of claims Nos. 1 to 8, characterised by the fact that the loop stop edge is formed in known manner by a wire (32) spanning the entire length of a needle bed (41, 42) and in each case taken through an aperture in the loop-forming ridges, and the loop-forming ridges (31) in each case have several apertures through which the wire may pass, which differ from each other by their distance from the looping edge (35) of the loop-forming ridges (31).
- Flat knitting machine in accordance with claim No. 9, characterised by the fact that the wire (32) forming the loop stop edge can be coupled to a rotary drive unit (53).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3935763 | 1989-10-27 | ||
DE3935763A DE3935763A1 (en) | 1989-10-27 | 1989-10-27 | FLAT KNITTING MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0424717A1 EP0424717A1 (en) | 1991-05-02 |
EP0424717B1 true EP0424717B1 (en) | 1994-03-30 |
Family
ID=6392320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90119232A Expired - Lifetime EP0424717B1 (en) | 1989-10-27 | 1990-10-06 | Flat knitting machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US5138849A (en) |
EP (1) | EP0424717B1 (en) |
JP (1) | JPH0633547B2 (en) |
DE (2) | DE3935763A1 (en) |
ES (1) | ES2051431T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1522618A1 (en) | 2003-10-07 | 2005-04-13 | H. Stoll GmbH & Co. | Sinker of a flat knitting machine |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4102207A1 (en) * | 1991-01-25 | 1992-07-30 | Schieber Universal Maschf | FLAT KNITTING MACHINE |
DE4128016A1 (en) * | 1991-08-23 | 1993-02-25 | Stoll & Co H | DOUBLE BED FLAT KNITTING MACHINE WITH NEEDLES AND BOARDS |
JP2726958B2 (en) * | 1991-08-29 | 1998-03-11 | 株式会社島精機製作所 | Bunk bed flat knitting machine |
JP2618312B2 (en) * | 1992-07-09 | 1997-06-11 | 株式会社島精機製作所 | Sinker device in flat knitting machine |
JP2700204B2 (en) * | 1992-12-15 | 1998-01-19 | 株式会社島精機製作所 | Sinker device in flat knitting machine |
IT1264204B1 (en) * | 1993-09-06 | 1996-09-23 | Emm Srl | DEVICE FOR HOLDING KNITTING ROWS IN FORMATION IN A KNITTING MACHINE |
DE4411724C2 (en) * | 1994-04-05 | 1996-04-18 | Schieber Universal Maschf | Flat knitting machine |
DE19704644B4 (en) * | 1997-02-07 | 2006-06-14 | H. Stoll Gmbh & Co. | Flat knitting machine and method of making a knit |
DE19725073B4 (en) * | 1997-06-13 | 2004-11-25 | H. Stoll Gmbh & Co. | Knitting machine, in particular flat knitting machine |
DE50208648D1 (en) * | 2002-03-23 | 2006-12-21 | Stoll & Co H | Flat knitting machine with adjustable sinkers |
JP4016028B2 (en) * | 2002-05-30 | 2007-12-05 | 株式会社島精機製作所 | Flat knitting machine with movable sinker device |
EP1522617B1 (en) * | 2003-10-07 | 2008-01-23 | H. Stoll GmbH & Co. | Flat knitting machine having at least one needle bed |
EP2034063B1 (en) * | 2007-09-06 | 2010-11-24 | H. Stoll GmbH & Co. KG | Flat knitting machine |
EP2042633B1 (en) * | 2007-09-25 | 2010-12-15 | H. Stoll GmbH & Co. KG | Flat knitting machine with wipe sinkers |
DE502008001941D1 (en) * | 2008-06-04 | 2011-01-13 | Groz Beckert Kg | Knitting system with a needle-driven debit board |
EP2251469B1 (en) * | 2009-05-15 | 2013-07-17 | H. Stoll GmbH & Co. KG | Flat knitting machine with sinkers |
EP4176115B1 (en) | 2020-07-03 | 2024-06-26 | Soft Revolt Tech B.V | Flat knit bra |
WO2022003090A1 (en) | 2020-07-03 | 2022-01-06 | Soft Revolt Tech B.V | Flat knit bra |
CN112877886B (en) * | 2021-01-11 | 2022-05-17 | 桐乡市强隆机械有限公司 | Yarn pressing device of flat knitting machine and working method thereof |
WO2023275275A1 (en) | 2021-07-01 | 2023-01-05 | Soft Revolt Tech B.V. | Flat knit bra |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1653886A (en) * | 1926-05-24 | 1927-12-27 | Fred F Billings | Sinker for knitting machine |
US3024633A (en) * | 1956-04-06 | 1962-03-13 | Gerhard Kochheim | Flat knitting apparatus |
DE1172396B (en) * | 1960-03-24 | 1964-06-18 | Remac Handstrickapp Erzeugung | Flat knitting machine with latch needles and knock-off and hold-down sinkers |
US3362195A (en) * | 1964-07-28 | 1968-01-09 | Goisis Mario | Method of and apparatus for forming loops in flat knitting machines |
US3735812A (en) * | 1970-12-10 | 1973-05-29 | Courtaulds Ltd | Knitting machines |
DE2545212A1 (en) * | 1975-10-09 | 1977-04-21 | Krenzler Fa Emil | Knitting hosiery articles with varying stitch size and tension - using sinkers movable axially in stationary knitting cylinder to feed articles axially |
SU1137791A1 (en) * | 1982-05-24 | 1988-04-30 | Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения | Kink-forming mechanism of circular knitting machine |
ES265992Y (en) * | 1982-05-25 | 1983-08-01 | NEEDLE BED FOR AUTOMATIC STRAIGHT KNITTING MACHINES. | |
DE3320043A1 (en) * | 1983-06-03 | 1984-12-06 | Terrot Strickmaschinen GmbH, 7000 Stuttgart | MESH-MAKING MACHINE |
DE3609539A1 (en) * | 1986-03-21 | 1987-10-01 | Stoll & Co H | DOUBLE-BED FLAT-KNITTING MACHINE WITH PLATINES BETWEEN NEEDLES |
DE3629334A1 (en) * | 1986-08-28 | 1988-03-10 | Stoll & Co H | FLAT KNITTING MACHINE |
DE3917934A1 (en) * | 1988-06-13 | 1989-12-14 | Schieber Universal Maschf | Flat knitting machine |
-
1989
- 1989-10-27 DE DE3935763A patent/DE3935763A1/en active Granted
-
1990
- 1990-10-06 ES ES90119232T patent/ES2051431T3/en not_active Expired - Lifetime
- 1990-10-06 EP EP90119232A patent/EP0424717B1/en not_active Expired - Lifetime
- 1990-10-06 DE DE90119232T patent/DE59005182D1/en not_active Expired - Fee Related
- 1990-10-26 JP JP2287378A patent/JPH0633547B2/en not_active Expired - Fee Related
- 1990-10-29 US US07/604,239 patent/US5138849A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1522618A1 (en) | 2003-10-07 | 2005-04-13 | H. Stoll GmbH & Co. | Sinker of a flat knitting machine |
Also Published As
Publication number | Publication date |
---|---|
DE59005182D1 (en) | 1994-05-05 |
US5138849A (en) | 1992-08-18 |
DE3935763C2 (en) | 1993-02-11 |
DE3935763A1 (en) | 1991-05-02 |
EP0424717A1 (en) | 1991-05-02 |
ES2051431T3 (en) | 1994-06-16 |
JPH03152249A (en) | 1991-06-28 |
JPH0633547B2 (en) | 1994-05-02 |
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