EP3039178B2 - Shuttle embroidery machine - Google Patents

Shuttle embroidery machine Download PDF

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Publication number
EP3039178B2
EP3039178B2 EP14761558.7A EP14761558A EP3039178B2 EP 3039178 B2 EP3039178 B2 EP 3039178B2 EP 14761558 A EP14761558 A EP 14761558A EP 3039178 B2 EP3039178 B2 EP 3039178B2
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EP
European Patent Office
Prior art keywords
drive
articulated
bar
rocker arm
embroidery machine
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EP14761558.7A
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German (de)
French (fr)
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EP3039178B1 (en
EP3039178A1 (en
Inventor
Franz Lässer
Hanno Nussbaumer
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Laesser AG
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Laesser AG
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Priority to EP18185389.6A priority Critical patent/EP3409821A1/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/18—Shuttles ; Shuttle holders; Shuttle driving arrangements

Definitions

  • Shuttle embroidery machines have been known for more than a century and work according to the two-thread system, ie with a needle thread and a shuttle thread, the needle thread being intertwined with the shuttle thread with each stitch.
  • a front eyed needle transports the needle thread through the fabric to the back of the fabric where the needle thread forms a loop when the needle is withdrawn.
  • the shuttle in which the shuttle thread is contained, is then passed through this loop.
  • Shuttle embroidery machines comprise a large number of embroidery positions arranged in a row and, accordingly, many needles and shuttles.
  • a driver bar is used to move the shuttle up and down on a vertical, slightly inclined position.
  • the bearing bore and the axis on the connecting rod which allows the driver beam to slide back and forth on its path running at an angle to the vertical, are also pushed to their limits.
  • the special version of the DE8436780U1 shuttles can be stopped in a central position by means of an intermediate gear using a coupling rod, by means of which a drive rail driven by a reciprocating oscillating shaft.
  • the drive end of the coupling rod which is guided by means of a sliding block in a connecting link of the oscillating shaft, is transferred from an eccentric position to a position that coincides with the axis of the oscillating shaft, which makes it possible for the adjustment drive for the driver beam to be kept motionless despite the continuous movement of the oscillating shaft .
  • This special version is only required if not only embroidery is carried out on a shuttle embroidery machine, but also drilling material is produced by making holes in the embroidery base.
  • a drive of the driver bar is disclosed with which the sliding movement between the connecting rod and the driver bar is to be avoided.
  • the connecting rod is equipped with flexible elements at both ends, so that the lateral movements are not to be absorbed by sliding on a shaft on the driver beam, but by elastic deformation of the connecting rod.
  • the bending forces caused by the spring elements on the connecting rod have to be overcome twice with each stroke. This is only possible with a higher drive power of the lifting drive.
  • stroke rates of more than 600 per minute elastic machine elements tend to generate additional vibrations in the driver beam in addition to the vibrations already present in a shuttle embroidery machine. Not only is the driver beam vibrated, but the shuttle tracks and the shuttles transported therein are also vibrated.
  • One object of the present invention is to create a shuttle embroidery machine whose drive means for the driver bar allows the number of stitches per minute to be increased above the previously achievable number of stitches per minute and in which the wear on the drive means is significantly reduced compared to the previously known drive means.
  • a further object is to reduce the noise generated by the drive for the driver bar, despite the higher number of stitches, accompanied by a reduction in the vibrations generated.
  • a further object of the invention is to eliminate sliding movements in the drive means and on the driver beam and to replace the linear guide means with suitable elements.
  • a further object of the invention is to further develop the shuttle embroidery machine or one and the same drive for the driver bar in such a way that it can be used for embroidery machines with shuttle tracks, which not only work counterclockwise inclined to the vertical, but also those that are inclined clockwise to the vertical.
  • crank drive not only can a higher number of stitches be achieved, but linear guide means in the form of guide rods or guide rails are no longer necessary for the displacement of the driver bar running inclined to the vertical.
  • the linear movement of the driver bar is generated by a suitably designed four-bar linkage, which is driven by a crank mechanism.
  • the sliding movements are replaced by rotary movements, which, as is known, produce less noise and with which, in addition, significantly lower acceleration and deceleration forces are generated at the reversal points of the oblique displacement of the driver beam.
  • the bearings are also subjected to significantly less stress and the rolling elements are prevented from sliding in the bearing races.
  • a further advantage of the invention is that, without replacing machine elements, the drive of shuttle tracks can be used with an angle that is arranged in a mirror-inverted manner with respect to the vertical.
  • a horizontally running shaft is arranged on it, on which the drive rod/the connecting rod is mounted so that it can be displaced transversely to the drive direction, so that the driver beam can be laterally displaced in this bearing relative to the connecting rod.
  • This sliding movement is subject to correspondingly high wear, particularly at the reversal points.
  • the crank arm can be part of a seesaw or attached directly to a continuous line shaft. In the CH 703 090 a possible solution to eliminate the wear and tear is revealed ( figure 2 ).
  • the first joint 9 thus represents a special configuration of a universal joint, which enables the connecting rod 7 to be pivoted perpendicular to the longitudinal extent of the driver bar 15 in order to be able to absorb the horizontal displacement of the driver bar 15 relative to the connecting rod 7 .
  • the not inconsiderable alternating loads can be optimally transferred in this way.
  • the driver bar 15 is in figure 4 only indicated in dot-dash lines. In the other figures, for the sake of clarity, it has been left out entirely and the guide and drive device 1 is shown on its own.
  • the upper end 7 "of the connecting rod 7 is also in a second. Universal joint 17, which is similar to the lower first joint 9, over a connecting rod pin 13 pivotally mounted.
  • the second joint 17 can be pivoted on a bearing pin 19 .
  • the bearing pin 19 is part of a fastening element 21 which establishes the connection to the driver bar 15 and is screwed to it, for example.
  • a bearing mount 23 is also formed on the fastening element 21 , on which a first rocker 25 is articulated so that it can pivot and is perpendicular to the bearing pin 19 .
  • a third rocker 33 is pivoted on an axis A on the one hand and on an axis C on the other hand.
  • the axis C or a shaft arranged thereon is stationary connected by a base plate 28 to a carrier 27 fastened to the machine frame of the shuttle embroidery machine or directly to the shuttle embroidery machine.
  • the second end of the first rocker 25 is articulated to the first end of a second rocker 31 via a rocker pivot 29 having an axis E.
  • the second end of the second rocker 31 is pivoted about an axis B.
  • the axis B is arranged in a stationary manner on the base plate 28 .
  • the three rockers 25, 31 and 33 consequently form a four-bar linkage with the two stationary axes B and C on the base plate 28 and the two axes A and E, which can move on circular arcs with different radii, on the first rocker 25.
  • FIG 7 the upper end position of the driver bar 15 is shown.
  • the end of the first rocker 25 opposite the rocker pin 29 (axis E) is pivotably mounted on the bearing mount 23 on the fastening element 21 on the driver beam 15 and pivotable about the pivot axis D arranged there.
  • the driver bar 15 With the oscillating vertical movement of the connecting rod 7, which is connected to the driver bar 15 in an articulated manner via the fastening element 21, the driver bar 15 is moved upwards and downwards in the direction of the arrow P on the one hand. Since the fastening element 21 and consequently also the driver bar 15 are articulated to the first lever 25 via the axis D, the drive movement with the connecting rod 7 does not take place vertically, but the driver bar 15 is driven by the first rocker 25, which is also on the second and third rocker 31,33 is articulated, also moves in the horizontal direction H.
  • the vertical movement P between the upper and lower reversal point of the connecting rod 7 simultaneously causes a displacement, i.e. a vertical movement and at the same time a horizontal movement by the amount H of the driver bar 15.
  • the lateral displacement H of the driver bar 15 between the lower and the The upper reversal point of the connecting rod 7 causes the driver bar 15 to move in an approximately straight line which is at an angle ⁇ , for example 15°, to the vertical.
  • the driver beam 15 consequently moves, since it is carried by a plurality of drive and guide devices 1 arranged next to one another along the driver beam 15 without fixedly arranged linear guide means, e.g. B. rails, as in the prior art according to Figures 1 and 2 are absolutely necessary, guided on the desired acute-angled to the vertical lying and approximately rectilinear path.
  • the drive device 1 thus takes over not only the lifting movement P of the driver bar 15, but also the horizontal movement H of the driver bar 15 at the same time and without the aid of linear guide means. It consequently eliminates two guided linear movements with each stroke and stitch of the embroidery machine according to figure 1 and the linear guide running at an acute angle to the vertical according to figure 2 and there the vibration-relevant bends of the connecting rod 7.
  • the latter can also be used to drive driver beams 15 in shuttle embroidery machines which have shuttle tracks that are inclined to the vertical and run in the opposite direction - ⁇ from the vertical.
  • the third rocker 33 counterclockwise and thus also pivoting the second rocker 31 clockwise from the figure 8 position shown in solid lines to the position shown in broken lines, this conversion can be easily made.
  • the drive device consequently works with exactly the same machine elements in both pivoting directions and enables the manufacturer to be able to offer his device for both types of shuttle guidance without additional replacement elements and thus without additional costs and warehousing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

Gegenstand der Erfindung ist eine Schiffchenstickmaschine gemäss Oberbegriff der Patentansprüche 1 und 8.The subject matter of the invention is a shuttle embroidery machine according to the preamble of patent claims 1 and 8.

Schiffchenstickmaschinen sind seit mehr als einem Jahrhundert bekannt und arbeiten nach dem Zweifadensystem, das heisst mit einem Nadelfaden und einem Schiffchenfaden, wobei der Nadelfaden bei jedem Stich mit dem Schiffchenfaden verschlungen wird. Eine vorne mit einem Öhr versehene Nadel transportiert den Nadelfaden durch den Stoff hindurch auf die Hinterseite des Stoffes, wo der Nadelfaden beim Zurückziehen der Nadel eine Schlaufe bildet. Durch diese Schlaufe wird dann das Schiffchen, in welchem der Schiffchenfaden enthalten ist, hindurch geführt. Schiffchenstickmaschinen umfassen eine grosse Anzahl von in einer Reihe angeordneten Stickstellen und dementsprechend viele Nadeln und Schiffchen. Zur Auf- und Ab-Bewegung des Schiffchens auf einer vertikalen, leicht geneigten Lage dient ein Treiberbalken.Shuttle embroidery machines have been known for more than a century and work according to the two-thread system, ie with a needle thread and a shuttle thread, the needle thread being intertwined with the shuttle thread with each stitch. A front eyed needle transports the needle thread through the fabric to the back of the fabric where the needle thread forms a loop when the needle is withdrawn. The shuttle, in which the shuttle thread is contained, is then passed through this loop. Shuttle embroidery machines comprise a large number of embroidery positions arranged in a row and, accordingly, many needles and shuttles. A driver bar is used to move the shuttle up and down on a vertical, slightly inclined position.

Aus der EP 1 595 990 ist eine solche Schiffchenstickmaschine bekannt mit einem durch einen Kurbeltrieb oszillierten Treiberbalken. Mittels des Treiberbalkens, der sich über die gesamte Länge der Maschine erstreckt, wird mit zwei jeder Nadel zugeordneten Treibernägeln die Schiffchen durch die zuvor gebildete Nadelfadenschlaufe und zurück befördert. Mit dem Kurbelantrieb des Treiberbalkens können 600 und mehr Stiche pro Minute erzeugt werden.From the EP 1 595 990 such a shuttle embroidery machine is known with a driver bar oscillated by a crank mechanism. By means of the driver bar, which extends over the entire length of the machine, the shuttle is conveyed through the previously formed needle thread loop and back with two driver nails assigned to each needle. With the crank drive of the driver bar, 600 and more stitches per minute can be generated.

Um die Kosten von Stickereien zu senken, werden von Kundenseite Maschinen gefordert, die eine höhere Stichzahl erreichen können. Dies ist zwar mit einem Antrieb gemäss der EP 1 595 990 möglich, jedoch nur auf Kosten von hohem Verschleiss mehrerer Elemente des Antriebs. Durch die hohen Beschleunigungen an den oberen und unteren Umkehrpunkten des Treiberbalkens, mit welchem der untere und der obere Treibernagel das Schiffchen durch die Schlaufe des Nadelfadens führt, werden die Lagerstellen im Kurbelgetriebe so sehr belastet, dass deren Lebensdauer durch Verschleiss verkürzt wird. So kann es vorkommen, dass die Kugeln in den Linearführungen der Treiberbalkenführung den Bewegungen nicht mehr rollend folgen können, sondern in den Führungsbahnen gleiten und in der Folge zu hoher örtlicher übermässiger Abnützung führen. Insbesondere werden auch die Lagerbohrung und die Achse an der Kurbelstange, welche ein Hin-und-her-Gleiten des Treiberbalkens auf seiner schräg zur Senkrechten verlaufenden Bahn ermöglicht, bis an die Grenzen beansprucht. Gemäss der Sonderausführung der DE8436780U1 können Schiffchen in einer mittleren Stellung mittels eines Zwischengetriebes unter Verwendung einer Koppelstange, mittels welcher eine von einer hin- und herdrehenden Schwingwelle angetriebenen Antriebsschiene stillgesetzt werden. Hierzu wird das mittels eines Gleitsteins in einer Kulisse der Schwingwelle geführte Antriebsende der Koppelstange aus einer exzentrischen Lage in eine mit der Achse der Schwingwelle zusammenfallende Lage überführt, wodurch es ermöglicht ist, dass trotz der kontinuierlichen Bewegung der Schwingwelle der Verstellantrieb für den Treiberbalken bewegungslos gehalten wird. Diese Sonderausführung wird nur dann benötigt, wenn auf einer Schiffchenstickmaschine nicht nur Stickereien ausgeführt werden, sondern auch Bohrware durch Einbringen von Löchern in den Stickgrund hergestellt wird.In order to reduce the cost of embroidery, customers are demanding machines that can achieve a higher number of stitches. Although this is with a drive according to the EP 1 595 990 possible, but only at the expense of high wear of several elements of the drive. Due to the high accelerations at the upper and lower reversal points of the driver beam, with which the lower and the upper driver nail guides the shuttle through the loop of the needle thread, the bearing points in the crank gear are so heavily loaded that their service life is shortened due to wear. It can happen that the balls in the linear guides of the driver bar guide can no longer follow the movements by rolling, but slide in the guideways and consequently lead to high local excessive wear. In particular, the bearing bore and the axis on the connecting rod, which allows the driver beam to slide back and forth on its path running at an angle to the vertical, are also pushed to their limits. According to the special version of the DE8436780U1 shuttles can be stopped in a central position by means of an intermediate gear using a coupling rod, by means of which a drive rail driven by a reciprocating oscillating shaft. For this purpose, the drive end of the coupling rod, which is guided by means of a sliding block in a connecting link of the oscillating shaft, is transferred from an eccentric position to a position that coincides with the axis of the oscillating shaft, which makes it possible for the adjustment drive for the driver beam to be kept motionless despite the continuous movement of the oscillating shaft . This special version is only required if not only embroidery is carried out on a shuttle embroidery machine, but also drilling material is produced by making holes in the embroidery base.

In der CH 703 090 wird ein Antrieb des Treiberbalkens offenbart, mit welchem die Schiebebewegung zwischen der Pleuelstange und dem Treiberbalken vermieden werden soll. Es wird dabei die Pleuelstange mit biegsamen Elementen an deren beiden Enden ausgerüstet, so dass die seitlichen Bewegungen nicht durch ein Gleiten auf einer Welle auf dem Treiberbalken, sondern durch eine elastische Verformung der Pleuelstange aufgenommen werden sollen. Wohl findet bei diesem Stand der Technik keine Schiebebewegung statt, jedoch müssen die Biegekräfte, verursacht durch die Federelemente an der Pleuelstange, bei jedem Hub zweimal überwunden werden. Dies ist nur möglich mit einer höheren Antriebsleistung des Hubantriebs. Weiter neigen elastische Maschinenelemente bei Hubzahlen von mehr als 600 pro Minute dazu, zu den bereits vorhandenen Schwingungen in einer Schiffchenstickmaschine zusätzliche Schwingungen des Treiberbalkens zu erzeugen. Dabei wird nicht nur der Treiberbalken in Schwingung versetzt, sondern auch die Schiffchenbahnen und die darin transportierten Schiffchen werden in Schwingung versetzt. Die durch die elastischen Elemente vermiedenen Schiebebewegungen beziehungsweise der Verschleiss der dort nicht mehr benötigten Elemente verlagert sich somit auf den Verschleiss an der Schiffchenbahn und zu den zum Treiberbalken geneigt zur Vertikalen führenden Linearführungselementen und zu den ohnehin unerwünschten Schwingungen der Schiffchenstickmaschine durch die federelastischen Elemente an den Pleueln.In the CH 703 090 a drive of the driver bar is disclosed with which the sliding movement between the connecting rod and the driver bar is to be avoided. The connecting rod is equipped with flexible elements at both ends, so that the lateral movements are not to be absorbed by sliding on a shaft on the driver beam, but by elastic deformation of the connecting rod. Although there is no sliding movement in this prior art, the bending forces caused by the spring elements on the connecting rod have to be overcome twice with each stroke. This is only possible with a higher drive power of the lifting drive. Furthermore, with stroke rates of more than 600 per minute, elastic machine elements tend to generate additional vibrations in the driver beam in addition to the vibrations already present in a shuttle embroidery machine. Not only is the driver beam vibrated, but the shuttle tracks and the shuttles transported therein are also vibrated. The sliding movements avoided by the elastic elements or the wear of the elements that are no longer required there is thus shifted to the wear on the shuttle track and to the linear guide elements leading to the driver beam inclined to the vertical and to the already undesirable vibrations of the shuttle embroidery machine due to the spring-elastic elements on the connecting rods .

Eine Aufgabe der vorliegenden Erfindung besteht darin, eine Schiffchenstickmaschine zu schaffen, deren Antriebsmittel für den Treiberbalken eine Erhöhung der Stichzahl pro Minute über die bisher erreichbaren Stichzahlen pro Minute ermöglicht und bei der der Verschleiss der Antriebsmittel gegenüber den bisher bekannten Antriebsmitteln wesentlich verringert wird. Eine weitere Aufgabe besteht darin, die Geräuschentwicklung des Antriebs für den Treiberbalken trotz höherer Stichzahl zu reduzieren, einhergehend mit einer Reduktion der erzeugten Schwingungen. Eine weitere Aufgabe der Erfindung besteht darin, Schiebebewegungen in den Antriebsmitteln und am Treiberbalken zu eliminieren und die Linearführungsmittel durch geeignete Elemente zu ersetzen.
Eine weitere Aufgabe der Erfindung besteht darin, die Schiffchenstickmaschine beziehungsweise ein und derselbe Antrieb für den Treiberbalken derart weiterzubilden, dass er sowohl für Stickmaschinen mit Schiffchenbahnen eingesetzt werden kann, welche nicht nur im Gegenuhrzeigersinn geneigt zur Senkrechten angeordnet sind, sondern auch solche, die im Uhrzeigersinn geneigt zur Senkrechten stehen.One object of the present invention is to create a shuttle embroidery machine whose drive means for the driver bar allows the number of stitches per minute to be increased above the previously achievable number of stitches per minute and in which the wear on the drive means is significantly reduced compared to the previously known drive means. A further object is to reduce the noise generated by the drive for the driver bar, despite the higher number of stitches, accompanied by a reduction in the vibrations generated. A further object of the invention is to eliminate sliding movements in the drive means and on the driver beam and to replace the linear guide means with suitable elements.
A further object of the invention is to further develop the shuttle embroidery machine or one and the same drive for the driver bar in such a way that it can be used for embroidery machines with shuttle tracks, which not only work counterclockwise inclined to the vertical, but also those that are inclined clockwise to the vertical.

Diese Aufgaben werden erfindungsgemäss durch eine Schiffchenstickmaschine gemäss den Merkmalen der Patentansprüche 1 und 8 gelöst. Vorteilhafte Lösungen der Aufgaben sind in den abhängigen Ansprüchen umschrieben.These objects are achieved according to the invention by a shuttle embroidery machine according to the features of patent claims 1 and 8. Advantageous solutions to the problems are described in the dependent claims.

Mit dem erfindungsgemässen Kurbeltrieb kann nicht nur eine höhere Stichzahl erreicht werden, sondern für die geneigt zur Vertikalen verlaufende Verschiebung des Treiberbalkens sind keine Linearführungsmittel in Gestalt von Führungsstangen oder Führungsschienen mehr notwendig. Die Linearbewegung des Treiberbalkens wird durch ein geeignet ausgebildetes Viergelenk erzeugt, welches durch einen Kurbeltrieb angetrieben wird. Die Schiebebewegungen werden durch Drehbewegungen ersetzt, welche bekannterweise geringere Geräuschentwicklungen hervorrufen und mit welchem zudem an den Umkehrpunkten der schräg laufenden Verschiebung des Treiberbalkens wesentlich geringere Beschleunigungs- und Verzögerungskräfte erzeugt werden. Als Folge davon werden auch die Lager wesentlich weniger belastet und ein Gleiten der Wälzkörper in den Lagerbahnen vermieden.With the crank drive according to the invention, not only can a higher number of stitches be achieved, but linear guide means in the form of guide rods or guide rails are no longer necessary for the displacement of the driver bar running inclined to the vertical. The linear movement of the driver bar is generated by a suitably designed four-bar linkage, which is driven by a crank mechanism. The sliding movements are replaced by rotary movements, which, as is known, produce less noise and with which, in addition, significantly lower acceleration and deceleration forces are generated at the reversal points of the oblique displacement of the driver beam. As a result, the bearings are also subjected to significantly less stress and the rolling elements are prevented from sliding in the bearing races.

Ein weiterer Vorteil der Erfindung besteht darin, dass ohne Austausch von Maschinenelementen der Antrieb von Schiffchenbahnen mit einem gegenüber der Vertikalen spiegelbildlich angeordneten Winkel verwendbar ist.A further advantage of the invention is that, without replacing machine elements, the drive of shuttle tracks can be used with an angle that is arranged in a mirror-inverted manner with respect to the vertical.

Die Erfindung wird anhand von Figuren näher erläutert. Es zeigen:

Figur 1
eine perspektivische Darstellung der bekannten Antriebsvorrichtung für eine Treibereinrichtung gemäss EP 1595990 ,
Figur 2
eine schematische Darstellung einer weiteren bekannten Antriebsvorrichtung mit elastischem Pleuel für eine Treibereinrichtung gemäss CH 703090 ,
Figur 3
eine Ansicht der Antriebsvorrichtung in Richtung der Antriebswelle für die Antriebsvorrichtung, Treiberbalken in tiefster Position,
Figur 4
eine Seitenansicht der Antriebsvorrichtung rechtwinklig zum Treiberbalken,
Figur 5
eine perspektivische Darstellung der Antriebsvorrichtung,
Figur 6
eine Ansicht der Antriebsvorrichtung in Richtung der Antriebswelle für die Antriebsvorrichtung, Treiberbalken in höchster Position,
Figur 7
eine Seitenansicht der Antriebsvorrichtung rechtwinklig zum Treiberbalken und
Figur 8
eine schematische Darstellung von drei Lenkerteilen für nach rechts geneigte Schiffchenbahnen und in gebrochenen Linien für nach links geneigte Schiffchenbahnen.
The invention is explained in more detail with reference to figures. Show it:
figure 1
a perspective view of the known drive device for a driver device according to EP1595990 ,
figure 2
according to a schematic representation of another known drive device with an elastic connecting rod for a driver device CH 703090 ,
figure 3
a view of the drive device in the direction of the drive shaft for the drive device, driver bar in the lowest position,
figure 4
a side view of the drive device perpendicular to the driver beam,
figure 5
a perspective view of the drive device,
figure 6
a view of the drive device in the direction of the drive shaft for the drive device, driver bar in the highest position,
figure 7
a side view of the drive device perpendicular to the driver beam and
figure 8
a schematic representation of three link parts for right-leaning shuttle tracks and in broken lines for left-leaning shuttle tracks.

Der in Figur 1 dargestellte Stand der Technik entspricht der EP 1 595 990 und deren Elemente und Funktionsweise sind im Text zu Figur 4 der EP 1 595 990 im Einzelnen beschrieben. In dieser Ausführung des Antriebs für einen Treiberbalken ist letzterer auf geneigt zur Vertikalen liegenden Führungen verschiebbar auf Führungsstangen gelagert. Der Neigungswinkel zur Senkrechten beträgt vorzugsweise 15°. Der Hubantrieb für den Treiberbalken mit dem Kurbelgetriebe aus Kurbel und Pleuel erfolgt hingegen in exakt vertikaler Richtung. Um die seitliche Verschiebung des Treiberbalkens während dessen Verschiebung zu kompensieren, ist an diesem eine horizontal verlaufende Welle angeordnet, auf der die Antriebsstange / der Pleuel quer zur Antriebsrichtung verschiebbar gelagert ist, so dass der Treiberbalken in dieser Lagerung relativ zum Pleuel seitlich verschiebbar ist. Diese Schiebebewegung ist bei hohen Drehzahlen einem entsprechend hohen Verschleiss insbesondere in den Umkehrpunkten ausgesetzt. Der Kurbelarm kann Teil einer Wippe oder direkt an einer durchgehenden Königswelle angebracht sein.
In der CH 703 090 wird eine mögliche Lösung zur Behebung des Verschleisses offenbart (Figur 2). Diese vermeidet die Schiebebewegung am Pleuelende, jedoch durch den gefederten Pleuel müssen bei jedem Hub zweimal Biegekräfte überwunden werden, um die Federelemente aus ihrer Ruhestellung zu biegen. Dadurch werden die Schrägführungen, auf denen der Treiberbalken gelagert ist, zusätzlich zu den hohen Reibkräften und noch mehr einem Verschleiss ausgesetzt.the inside figure 1 The state of the art shown corresponds to that EP 1 595 990 and their elements and functioning are in the text too figure 4 the EP 1 595 990 described in detail. In this embodiment of the drive for a driver beam, the latter is slidably mounted on guide rods on guides that are inclined to the vertical. The angle of inclination to the vertical is preferably 15°. The lifting drive for the driver bar with the crank mechanism consisting of crank and connecting rod, on the other hand, takes place in an exactly vertical direction. In order to compensate for the lateral displacement of the driver beam during its displacement, a horizontally running shaft is arranged on it, on which the drive rod/the connecting rod is mounted so that it can be displaced transversely to the drive direction, so that the driver beam can be laterally displaced in this bearing relative to the connecting rod. At high speeds, this sliding movement is subject to correspondingly high wear, particularly at the reversal points. The crank arm can be part of a seesaw or attached directly to a continuous line shaft.
In the CH 703 090 a possible solution to eliminate the wear and tear is revealed ( figure 2 ). This avoids the sliding movement at the end of the connecting rod, but due to the spring-loaded connecting rod, bending forces have to be overcome twice with each stroke in order to bend the spring elements out of their rest position. As a result, the inclined guides on which the driver bar is mounted are exposed to wear in addition to the high frictional forces and even more.

In der erfindungsgemässen Ausführung der Antriebs- und Führungsvorrichtung 1 gemäss den Figuren 3-7 ist wie im Stand der Technik gemäss EP 1 595 990 mit Bezugszeichen 3 eine Lagerstelle (Welle) für einen Kurbelarm 5 bezeichnet. Über dem Kurbelarm 5 erfolgt eine Bewegungsübertragung von der Lagerstelle 3 zu einer Antriebsstange, kurz Pleuel 7 genannt. Im Gegensatz zur bekannten Ausführung gemäss Figur 1 ist das antriebsseitige Ende 7 des Pleuels 7 nicht direkt im abtriebsseitigen Ende 5 des Kurbelarms 5 gelagert. Der Antrieb vom Kurbelarm 5 auf den Pleuel 7 erfolgt über ein erstes Gelenk 9, welches einerseits auf einem Kurbelzapfen 11 und andererseits, um 90° verdreht, am antriebsseitigen Ende 7' des ersten Gelenkes 9 auf einem Pleuelzapfen 13 gelagert ist. Das erste Gelenk 9 stellt also eine spezielle Ausbildung eines Kreuzgelenks dar, welches ermöglicht, dass der Pleuel 7 senkrecht zur Längserstreckung des Treiberbalkens 15 schwenkbar gelagert ist, um die horizontale Verschiebung des Treiberbalkens 15 relativ zum Pleuel 7 aufnehmen zu können. Zudem können auf diese Weise die nicht unerheblichen Wechsellasten optimal übertragen werden. Der Treiberbalken 15 ist in Figur 4 in strichpunktierten Linien nur angedeutet. In den übrigen Figuren ist er der besseren Übersichtlichkeit halber jeweils ganz weggelassen und die Führung- und Antriebvorrichtung 1 in Alleinstellung wiedergegeben. Das obere Ende 7" des Pleuels 7 ist ebenfalls in einem zweiten. Kreuzgelenk 17, das ähnlich dem unteren ersten Gelenk 9 ausgebildet ist, über einen Pleuelzapfen 13 schwenkbar gelagert. Das zweite Gelenk 17 ist auf einem Lagerzapfen 19 schwenkbar. Der Lagerzapfen 19 ist Teil eines Befestigungselements 21, welches die Verbindung zum Treiberbalken 15 herstellt und mit diesem zum Beispiel verschraubt ist.
Am Befestigungselement 21 ist weiter eine Lageraufnahme 23 ausgebildet, an welcher eine erste Schwinge 25 schwenkbar und rechtwinklig zum Lagerzapfen 19 angelenkt ist. Etwa in der Mitte der ersten Schwinge 25 ist eine dritte Schwinge 33 einerseits auf einer Achse A und andererseits auch auf einer Achse C schwenkbar angelenkt. Die Achse C beziehungsweise eine darauf angeordnete Welle ist ortsfest durch eine Basisplatte 28 mit einem am Maschinengestell der Schiffchenstickmaschine befestigten Träger 27 oder direkt mit der Schiffchenstickmaschine verbunden. Das zweite Ende der ersten Schwinge 25 ist über einen Schwingenzapfen 29 mit einer Achse E gelenkig mit dem ersten Ende einer zweiten Schwinge 31 verbunden. Das zweite Ende der zweiten Schwinge 31 ist um eine Achse B schwenkbar gelagert. Die Achse B ist ortsfest auf der Basisplatte 28 angeordnet.In the inventive design of the drive and guide device 1 according to the Figures 3-7 is as in the prior art EP 1 595 990 reference numeral 3 designates a bearing point (shaft) for a crank arm 5 . Via the crank arm 5 , movement is transmitted from the bearing point 3 to a drive rod, called connecting rod 7 for short. In contrast to the known design according to figure 1 the drive-side end 7 of the connecting rod 7 is not mounted directly in the driven-side end 5 of the crank arm 5 . The drive from the crank arm 5 to the connecting rod 7 takes place via a first joint 9, which is mounted on a crank pin 11 on the one hand and, rotated by 90°, on a connecting rod pin 13 on the drive-side end 7' of the first joint 9 on the other. The first joint 9 thus represents a special configuration of a universal joint, which enables the connecting rod 7 to be pivoted perpendicular to the longitudinal extent of the driver bar 15 in order to be able to absorb the horizontal displacement of the driver bar 15 relative to the connecting rod 7 . In addition, the not inconsiderable alternating loads can be optimally transferred in this way. The driver bar 15 is in figure 4 only indicated in dot-dash lines. In the other figures, for the sake of clarity, it has been left out entirely and the guide and drive device 1 is shown on its own. The upper end 7 "of the connecting rod 7 is also in a second. Universal joint 17, which is similar to the lower first joint 9, over a connecting rod pin 13 pivotally mounted. The second joint 17 can be pivoted on a bearing pin 19 . The bearing pin 19 is part of a fastening element 21 which establishes the connection to the driver bar 15 and is screwed to it, for example.
A bearing mount 23 is also formed on the fastening element 21 , on which a first rocker 25 is articulated so that it can pivot and is perpendicular to the bearing pin 19 . Approximately in the middle of the first rocker 25, a third rocker 33 is pivoted on an axis A on the one hand and on an axis C on the other hand. The axis C or a shaft arranged thereon is stationary connected by a base plate 28 to a carrier 27 fastened to the machine frame of the shuttle embroidery machine or directly to the shuttle embroidery machine. The second end of the first rocker 25 is articulated to the first end of a second rocker 31 via a rocker pivot 29 having an axis E. The second end of the second rocker 31 is pivoted about an axis B. The axis B is arranged in a stationary manner on the base plate 28 .

Die drei Schwingen 25, 31 und 33 bilden folglich ein Viergelenk mit den beiden ortsfesten Achsen B und C auf der Basisplatte 28 und den beiden auf Kreisbögen mit unterschiedlichen Radien beweglichen Achsen A und E an der ersten Schwinge 25.The three rockers 25, 31 and 33 consequently form a four-bar linkage with the two stationary axes B and C on the base plate 28 and the two axes A and E, which can move on circular arcs with different radii, on the first rocker 25.

In Figur 7 ist die obere Endlage des Treiberbalkens 15 dargestellt. Das dem Schwingenzapfen 29 (Achse E) gegenüberliegende Ende der ersten Schwinge 25 ist an der Lageraufnahme 23 am Befestigungselement 21 am Treiberbalken 15 schwenkbar gelagert und um die dort angeordnete Schwenkachse D schwenkbar.In figure 7 the upper end position of the driver bar 15 is shown. The end of the first rocker 25 opposite the rocker pin 29 (axis E) is pivotably mounted on the bearing mount 23 on the fastening element 21 on the driver beam 15 and pivotable about the pivot axis D arranged there.

In der schematischen Darstellung gemäss Figur 8 sind die drei Schwingen 25, 31 und 33 sowie die Anlenkpunkte der Achse B und C am Träger 27 dargestellt. Das Befestigungselement 21, an welchem der Pleuel 7 (Pleuel 7 schematisch dargestellt) angreift, ist nicht detailliert eingezeichnet, sondern es ist nur durch die Pfeile P angedeutet wie der Bewegungsverlauf des Befestigungselements 21 und folglich des Trägerbalkens 15 verläuft. Der Treiberbalken 15, an welchem das Befestigungselement 1 befestigt ist, ist der guten Übersichtlichkeit halber ebenfalls weggelassen. Nachfolgend wird die Funktionsweise der Führungs- und Antriebsvorrichtungen 1 für den Treiberbalken 15 erläutert. Am Treiberbalken 15 greifen mindestens zwei Führungs- und Antriebsvorrichtungen 1 an und tragen und führen dieses auf einer zur Vertikalen geneigten Bahn. Mit der oszillierenden Vertikalbewegung des Pleuels 7, welcher über das Befestigungselement 21 mit dem Treiberbalken 15 gelenkig verbunden ist, wird der Treiberbalken 15 einerseits in Richtung des Pfeiles P nach oben und nach unten bewegt. Da das Befestigungselement 21 und folglich auch der Treiberbalken 15 gelenkig über die Achse D mit dem ersten Hebel 25 verbunden sind, erfolgt die Antriebsbewegung mit dem Pleuel 7 nicht in der Senkrechten, sondern der Treiberbalken 15 wird von der ersten Schwinge 25, die auch an der zweiten und dritten Schwinge 31,33 angelenkt ist, zusätzlich in horizontaler Richtung H bewegt. Durch die Vertikalbewegung P zwischen dem oberen und dem unteren Umkehrpunkt des Pleuels 7 erfolgt also gleichzeitig eine Verschiebung, das heisst eine vertikale Bewegung und gleichzeitig eine horizontale Bewegung um den Betrag H des Treiberbalkens 15. Die seitliche Verschiebung H des Treiberbalkens 15 zwischen dem unteren und dem oberen Umkehrpunkt des Pleuels 7 bewirkt, dass der Treiberbalken 15 sich auf einer annähernd geraden Linie bewegt, welche zur Vertikalen in einem Winkel a, zum Beispiel 15°, liegt. Der Treiberbalken 15 bewegt sich folglich, da dieser von einer Mehrzahl von nebeneinander längs des Treiberbalkens 15 angeordneter Antriebs- und Führungsvorrichtungen 1 getragen wird ohne fest angeordnete Linear-Führungsmittel, z. B. Schienen, wie sie im Stand der Technik gemäss den Figuren 1 und 2 zwingend notwendig sind, auf der gewünschten spitzwinklig zur Vertikalen liegenden und annähernd geradlinig verlaufenden Bahn geführt. Die Antriebsvorrichtung 1 übernimmt damit nicht nur die Hubbewegung P des Treiberbalkens 15, sondern gleichzeitig und ohne Zuhilfenahme von Linear-Führungsmitteln auch die horizontale Bewegung H des Treiberbalkens 15. Sie eliminiert folglich bei jedem Hub und Stich der Stickmaschine zwei geführte Linearbewegungen gemäss Figur 1 und die spitzwinklig zur Senkrechten erfolgenden Linearführung gemäss Figur 2 und dort die schwingungsrelevanten Biegungen des Pleuels 7.In the schematic representation according to figure 8 the three rockers 25, 31 and 33 and the pivot points of the axis B and C on the carrier 27 are shown. The fastening element 21, on which the connecting rod 7 (connecting rod 7 shown schematically) engages, is not shown in detail, but it is only indicated by the arrows P how the movement of the fastening element 21 and consequently the carrier beam 15 runs. The driver bar 15, to which the fastening element 1 is fastened, has also been omitted for the sake of clarity. The functioning of the guiding and driving devices 1 for the driver bar 15 is explained below. At least two guiding and driving devices 1 act on the driver beam 15 and carry and guide it on a path inclined to the vertical. With the oscillating vertical movement of the connecting rod 7, which is connected to the driver bar 15 in an articulated manner via the fastening element 21, the driver bar 15 is moved upwards and downwards in the direction of the arrow P on the one hand. Since the fastening element 21 and consequently also the driver bar 15 are articulated to the first lever 25 via the axis D, the drive movement with the connecting rod 7 does not take place vertically, but the driver bar 15 is driven by the first rocker 25, which is also on the second and third rocker 31,33 is articulated, also moves in the horizontal direction H. The vertical movement P between the upper and lower reversal point of the connecting rod 7 simultaneously causes a displacement, i.e. a vertical movement and at the same time a horizontal movement by the amount H of the driver bar 15. The lateral displacement H of the driver bar 15 between the lower and the The upper reversal point of the connecting rod 7 causes the driver bar 15 to move in an approximately straight line which is at an angle α, for example 15°, to the vertical. The driver beam 15 consequently moves, since it is carried by a plurality of drive and guide devices 1 arranged next to one another along the driver beam 15 without fixedly arranged linear guide means, e.g. B. rails, as in the prior art according to Figures 1 and 2 are absolutely necessary, guided on the desired acute-angled to the vertical lying and approximately rectilinear path. The drive device 1 thus takes over not only the lifting movement P of the driver bar 15, but also the horizontal movement H of the driver bar 15 at the same time and without the aid of linear guide means. It consequently eliminates two guided linear movements with each stroke and stitch of the embroidery machine according to figure 1 and the linear guide running at an acute angle to the vertical according to figure 2 and there the vibration-relevant bends of the connecting rod 7.

Ohne einen Austausch von Elementen der Antriebsvorrichtung 1, kann letztere auch für den Antrieb von Treiberbalken 15 in Schiffchenstickmaschinen eingesetzt werden, welche Schiffchenbahnen aufweisen, die eine Schrägstellung zur Vertikalen aufweisen, die in die entgegengesetzte Richtung -α von den Senkrechten verlaufen. Durch einfaches Schwenken der dritten Schwinge 33 im Gegenuhrzeigersinn und damit auch Schwenken der zweiten Schwinge 31 im Uhrzeigersinn von der in Figur 8 in ausgezogenen Linien dargestellten Lage in die mit gebrochenen Linien dargestellte Lage, kann diese Umstellung einfach vorgenommen werden. Die Antriebsvorrichtung arbeitet folglich mit genau den gleichen Maschinenelementen in beiden Schwenkrichtungen und ermöglicht es dem Hersteller, seine Vorrichtung für beide Arten von Schiffchenführung ohne zusätzliche Austauschelemente und damit ohne zusätzliche Kosten und Lagerhaltung anbieten zu können.Without replacing elements of the drive device 1, the latter can also be used to drive driver beams 15 in shuttle embroidery machines which have shuttle tracks that are inclined to the vertical and run in the opposite direction -α from the vertical. By simply pivoting the third rocker 33 counterclockwise and thus also pivoting the second rocker 31 clockwise from the figure 8 position shown in solid lines to the position shown in broken lines, this conversion can be easily made. The drive device consequently works with exactly the same machine elements in both pivoting directions and enables the manufacturer to be able to offer his device for both types of shuttle guidance without additional replacement elements and thus without additional costs and warehousing.

Claims (10)

  1. A shuttle embroidery machine with a drive bar (15), having driver nails fastened thereto for common movement of a plurality of shuttles along shuttle races which are arranged inclined relative to the vertical, and a lifting drive for the drive bar, which is arranged substantially parallel to the shuttle races, characterized in that the lifting drive of the drive bar (15) is effected with a driving mechanism (5, 7) which is constructed from a four-bar linkage which is driven by a crank drive, wherein the drive bar (15), for the guiding in a straight line, is not mounted in a linearly extending guide element, wherein a plurality of four-bar linkages carry and drive the drive bar (15) in an oscillating manner and in that the drive bar (15) is connected to the four-bar linkages in an articulated manner and is guided by the latter on a movement path extending inclined relative to the vertical, wherein the four-bar linkage comprises the arrangement of multiple rocker arms (25,31,33) which are connected to one another and which are articulated to the common driving mechanism (5,7) and in that the articulated points of connection thereof to the drive bar (15) execute the virtually straight movement in the predefined slope relative to the vertical or to the horizontal, and wherein each four-bar linkage articulated to the driving mechanism (5,7) comprises three rocker arms (25,31,33), wherein the second (31) and the third rocker arm (33) are articulated to the machine frame and the first rocker arm (25) is connected to the other two rocker arms (31,35) in an articulated manner and in that the free end of a connecting rod (7) engages the driving mechanism (5,7) at the first rocker arm (25) in an articulated manner.
  2. The shuttle embroidery machine according to Claim 1, characterized in that the connecting rod (7) is connected both to the first rocker arm (25) and to the driving mechanism (5,7) in an articulated manner.
  3. The shuttle embroidery machine according to Claim 2, characterized in that the articulated connection between the connecting rod (7) and the first rocker arm (25) is effected at the first rocker arm (25).
  4. The shuttle embroidery machine according to any one of Claims 1 to 3, characterized in that the connecting rod (7) is connected to one articulation (9,17) each, comprising two bearing journals (11,19) which are arranged at right angles to one another, to the crank (5) and the first rocker arm (25).
  5. The shuttle embroidery machine according to any one of Claims 2 to 4, characterized in that the first rocker arm (25) is articulated to a fastening element (21), to which fastening element (21) the connecting rod (7) is also articulated, and the fastening element (21) is fastened to the drive bar (15).
  6. The shuttle embroidery machine according to any one of the preceding claims, characterized in that the driving mechanism (5,7) is connected to a rocker which can be driven by a vertical shaft driving all of the driving mechanisms (5,7).
  7. The shuttle embroidery machine according to any one of Claims 1 to 6, characterized in that the driving mechanism (5,7) and the rocker arms (25,31,33), which engage the drive bar (15), can guide the latter on a linear movement path which extends at an angle of +α or -α relative to the vertical.
  8. A shuttle embroidery machine comprising a drive and a guide device (1) for a drive bar (15) having driver nails for driving a plurality of shuttles, which, while being laterally guided, can be guided back and forth between two end positions in shuttle races which are inclined relative to the vertical, characterized in that a drivable driving mechanism (5,7) which is constructed from a four-bar linkage is provided to drive the drive and guide device in an oscillatory manner, wherein the drive and the guide device (1) comprises a swiveling lever which can be driven by the driving mechanism (5,7) and the free end of which is connected to the drive bar (15) and substantially guides the latter up and down, wherein
    - the drive and the guide device (1) is arranged on a carrier (27) or directly on the machine frame of the embroidery machine,
    - the drive and the guide device (1) comprises at least a first rocker arm (25), a second rocker arm (31) and a third rocker arm (33),
    - at least one swiveling bearing is formed on each of the rocker arms (25, 31, 33) for articulated connection respectively to one of the other two rocker arms or to the carrier (27),
    - two swiveling axes B and C for the swivelable mounting of the first ends of the second (31) and of the third rocker arm (33) are formed on the carrier (27),
    - the second ends of the second (31) and the third rocker arm (33) are articulated with the first rocker arm (25) at axes E and A,
    - a further swiveling axis D is formed on the first rocker arm (25) outside the two swiveling bearings E, A, which swiveling axis is arranged on the drive bar (15),
    - one end of a connecting rod (7) is articulated to the driving mechanism (5,7) and the other end is articulated to the drive bar (15),
    and
    - a crankshaft (5) is arranged on a drive shaft (3) in a drivable manner.
  9. The shuttle embroidery machine according to Claim 8, characterized in that the connecting rod (7) comprises one universal joint (9,17) each at its two ends, wherein the first universal joint (9) is articulated with the crank arm (5) and the second universal joint (17) is articulated to the drive bar (15) at axis D.
  10. The shuttle embroidery machine according to any one of Claims 8 to 9, characterized in that at least two drive and guide devices (1) engage the drive bar (15) at spaced positions of the drive bar (15).
EP14761558.7A 2013-08-28 2014-08-28 Shuttle embroidery machine Active EP3039178B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18185389.6A EP3409821A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01459/13A CH708496A1 (en) 2013-08-28 2013-08-28 A shuttle embroidering.
PCT/CH2014/000125 WO2015027349A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18185389.6A Division EP3409821A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine
EP18185389.6A Division-Into EP3409821A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine

Publications (3)

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EP3039178A1 EP3039178A1 (en) 2016-07-06
EP3039178B1 EP3039178B1 (en) 2018-08-01
EP3039178B2 true EP3039178B2 (en) 2022-06-08

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EP18185389.6A Withdrawn EP3409821A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine
EP14761558.7A Active EP3039178B2 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine

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EP18185389.6A Withdrawn EP3409821A1 (en) 2013-08-28 2014-08-28 Shuttle embroidery machine

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EP (2) EP3409821A1 (en)
CN (2) CN109023753B (en)
CH (1) CH708496A1 (en)
TW (2) TWI637090B (en)
WO (1) WO2015027349A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016005334B4 (en) 2016-04-30 2018-04-26 Saurer Ag Shuttle drive train for a shuttle embroidery machine and shuttle embroidery machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE30271C (en) * 1885-02-03 1885-02-03 Sächsische Stickmaschinenfabrik, a. Voigt in Kappel bei Chemnitz Moving device of the shuttle in inclined paths on embroidery machines
US876975A (en) * 1906-07-09 1908-01-21 Firm Of Adolph Saurer Shuttle-embroidering machine.
US1200177A (en) * 1914-08-01 1916-10-03 Saurer Fa Adolph Shuttle-operating mechanism for embroidering-machines.
CH177544A (en) 1934-05-28 1935-06-15 Wuerker G M B H Drive device for jacquard machines.
DE2017125C3 (en) * 1970-04-10 1974-08-15 Rudolf 5450 Neuwied Reich Device for changing shuttles in embroidery machines
JPS536616Y2 (en) * 1973-09-07 1978-02-20
DE8436780U1 (en) * 1984-12-15 1985-03-14 Motema Textilmaschinen GmbH, 4150 Krefeld DEVICE FOR SWITCHING OFF THE MOVEMENT OF THE SHIP DRIVE RAIL ON SHIP EMBROIDERY MACHINES
FR2689526A1 (en) * 1992-04-07 1993-10-08 Sieber Hugo Embroidery machine shuttle drive to e.g. avoid needle damage - has two displaced and parallel longitudinal sections locked together and apart from each other by distance piece, and of circular or angular cross=section
ATE212080T1 (en) * 1999-05-28 2002-02-15 Laesser Franz Ag SHIP EMBROIDERY MACHINE WITH A DRIVE BAR UNIT
ATE327362T1 (en) * 2004-04-29 2006-06-15 Laesser Ag SHIP EMBROIDERY MACHINE
CH702330A1 (en) 2009-12-02 2011-06-15 Laesser Ag Multi-head multi-needle embroidery machine and bobbin unit for multi-head multi-needle embroidery machine.
CH702470A1 (en) * 2009-12-18 2011-06-30 Laesser Ag Embroidery machine, in particular, multi-head multi-needle embroidery machine.
DE102010019704B4 (en) * 2010-05-07 2013-11-07 Oerlikon Saurer Arbon Ag Boat embroidery machine with drive of the driver bar
CH705472A1 (en) * 2011-09-08 2013-03-15 Laesser Ag Embroidery machine.

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WO2015027349A1 (en) 2015-03-05
CN105593425A (en) 2016-05-18
EP3039178B1 (en) 2018-08-01
CN109023753A (en) 2018-12-18
TWI693322B (en) 2020-05-11
CH708496A1 (en) 2015-03-13
TWI637090B (en) 2018-10-01
EP3409821A1 (en) 2018-12-05
EP3039178A1 (en) 2016-07-06
CN105593425B (en) 2018-11-27
CN109023753B (en) 2021-07-16
TW201520395A (en) 2015-06-01
TW201900974A (en) 2019-01-01

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