EP1881098B1 - Shuttle embroidery machine or quilting machine - Google Patents

Shuttle embroidery machine or quilting machine Download PDF

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Publication number
EP1881098B1
EP1881098B1 EP07012875A EP07012875A EP1881098B1 EP 1881098 B1 EP1881098 B1 EP 1881098B1 EP 07012875 A EP07012875 A EP 07012875A EP 07012875 A EP07012875 A EP 07012875A EP 1881098 B1 EP1881098 B1 EP 1881098B1
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EP
European Patent Office
Prior art keywords
shuttle
machine
guiding element
quilting
driver
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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.)
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EP07012875A
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German (de)
French (fr)
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EP1881098A1 (en
Inventor
Franz Lässer
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Laesser AG
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Laesser AG
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Publication of EP1881098A1 publication Critical patent/EP1881098A1/en
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B11/00Machines for sewing quilts or mattresses
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05CEMBROIDERING; TUFTING
    • D05C11/00Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
    • D05C11/18Shuttles ; Shuttle holders; Shuttle driving arrangements
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/08Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10Shuttles
    • D05B57/12Shuttles oscillating

Description

Die Erfindung betrifft eine Schiffchenstickmaschine oder eine Steppmaschine mit einer Vielzahl von Schiffchenbahnen, welche eine geneigte oder horizontale Lauffläche aufweisen, über welche die Schiffchen hin und her bewegbar sind, und einen Treiberlineal mit Treibernägeln zur Hin- und Herbewegung der Schiffchen über die Laufflächen.The invention relates to a shuttle embroidery machine or quilting machine having a plurality of shuttle tracks having a sloped or horizontal tread over which the shuttle is movable to and fro, and a driver ruler having driver nails for reciprocating the shuttle over the treads.

Schiffchenstickmaschinen arbeiten nach dem Zweifadensystem, d.h. mit einem Nadelfaden und einem Schiffchenfaden, wobei der Nadelfaden bei jedem Stich mit dem Schiffchenfaden verschlungen wird. Eine mit einem Ör versehene Nadel transportiert den Nadelfaden durch den Stoff hindurch, wobei der Faden beim Zurückgehen der Nadel eine Schlaufe bildet. Durch diese Schlaufe wird dann das Schiffchen, in welchem der Schiffchenfaden enthalten ist, hindurchgeführt. In der Regel besitzt eine Stickmaschine oder eine Steppmaschine eine grosse Anzahl von Stickstellen und entsprechend viele Nadeln und Schiffchen. Zur Hin- und Herbewegung des Schiffchens dient ein sogenanntes Treiberlineal oder dergleichen. Bei modernen Stickmaschinen wird das Treiberlineal durch ein Profil gebildet. Dieses weist Bohrungen auf, in welche für jede Stickstelle ein unterer Treibernagel und ein oberer Treibernagel eingesetzt ist. Mit diesen Treibernägeln wird das Schiffchen auf der geneigten Lauffläche der Schiffchenbahn auf und ab bewegt. Es ist bekannt, bei Stickmaschinen die auf das Schiffchen wirkende Schwerkraft auszunutzen, um bei Bedarf das Schiffchen still zu legen. Zu diesem Zweck braucht lediglich der untere Treibernagel gezogen werden, so dass er das Schiffchen nicht mehr mitnimmt ( EP 1 055 761 ). Bei Steppmaschinen sind die Schiffchenbahnen in der Regel waagrecht angeordnet. Sowohl bei Stick- als auch bei Steppmaschinen dient der seitlichen Führung des Schiffchens auf der einen Seite die vordere Stichplatte und auf der anderen Seite die hintere Stichplatte.Shuttle embroidery machines work according to the two-thread system, ie with a needle thread and a shuttle thread, whereby the needle thread is entangled with the shuttle thread with each pass. An Ör needle transports the needle thread through the fabric, forming a loop as the needle returns. Through this loop then the boat, in which the shuttle thread is included, passed. In general, an embroidery machine or a quilting machine has a large number of embroidery sites and correspondingly many needles and boats. For reciprocation of the shuttle is a so-called driver ruler or the like. In modern embroidery machines, the driver ruler is formed by a profile. This has holes in which a lower driver nail and an upper driver nail is used for each embroidery site. With these driver nails, the shuttle is moved up and down on the inclined tread of the shuttle. It is known to take advantage of the forces acting on the boat gravity in embroidery machines to put the shuttle down when needed. For this purpose, only the lower driver nail needs to be pulled, so that he no longer takes the boat with him ( EP 1 055 761 ). For quilting machines the shuttle trays are usually arranged horizontally. For both embroidery and quilting machines, the lateral guidance of the shuttle on one side serves as the front throat plate and on the other side the rear throat plate.

Die bereits vor mehr als 80 Jahren publizierte US 1508 357 hat zur Aufgabe Stickereien mit einem Faden herzustellen, der mit in Abständen voneinander angeordneten Kügelchen versehen ist. Bei der üblichen Anordnung des Schiffchens auf einer geneigten oder waagrechten Schiffchenbahn besteht die Gefahr, dass durch das Gewicht eines Kügelchens die beim kurzzeitigen Rückzug der Nadel gebildete Fadenschlaufe nach unten auf die Laufbahn gedrückt und somit beim Durchgang des Schiffchens von der Spitze des Schiffchens nicht erfasst wird. Um diese Gefahr zu vermeiden wird in der Patentschrift vorgeschlagen, das Schiffchen auf einer Laufbahn unterhalb der Nadel hin und her zu bewegen. Dazu ist ein Korb (basket) vorgesehen, in welchen das Schiffchen gelegt werden kann. Zusätzlich wird eine Feder verwendet, um das Schiffchen von unten gegen die Laufbahn zu pressen (claim 1). Wenn somit durch den Nadelfaden eine Schlaufe gebildet wird, ragt diese von der Laufbahn nach unten, wobei das Gewicht eines Kügelchens mithilft, die Schlaufe für den Durchgang der Spitze des Schiffchens offen zu halten. Diese Lehre der zitierten Druckschrift ist also klar auf das Sticken mit Fäden beschränkt, die Kügelchen aufweisen und weist somit davon weg, das Schiffchen - wie allgemein üblich - über eine geneigte oder waagrechte Schiffchenbahn laufen zu lassen.Already published more than 80 years ago US 1508,357 The task is to make embroideries with a thread provided with globules arranged at intervals. In the usual arrangement of the boat on a tilted or horizontal shuttle railway there is a risk that through the Weight of a bead pressed the thread loop formed during the brief retraction of the needle down on the track and thus is not detected when passing the shuttle from the tip of the shuttle. To avoid this danger, it is proposed in the patent to move the shuttle on a track below the needle back and forth. For this purpose, a basket (basket) is provided, in which the boat can be placed. In addition, a spring is used to press the boat from below against the track (claim 1). Thus, when a loop is formed by the needle thread, it projects downwardly from the track, with the weight of a bead helping to keep the loop open for the passage of the tip of the boat. This doctrine of the cited document is thus clearly limited to embroidering with threads that have beads and thus eliminates the boat - as is common practice - to run on an inclined or horizontal shuttle.

In den letzten Jahren ist die Geschwindigkeit, mit denen eine Schiffchenstickmaschine arbeitet, stark erhöht worden. Es gibt bereits Maschinen, die mit 600 und mehr Stichen pro Minute arbeiten. Verschiedene Faktoren stellen sich aber einer weiteren Erhöhung der Maschinendrehzahl entgegen. So ist beispielsweise ein erhöhter Abrieb bei den Schiffchen festzustellen. Dies verwundert nicht, wenn man weiss, dass die Schiffchen mit bis zu 5 G beschleunigt werden. Bei hohen Geschwindigkeiten ist auch eine erhöhte Lärmemission aus dem Schiffchenbereich zu beachten.In recent years, the speed with which a shuttle embroidery machine works has been greatly increased. There are already machines that work with 600 and more stitches per minute. However, several factors counteract a further increase in engine speed. For example, there is an increased abrasion in the boats. This is not surprising when you know that the boats are accelerated up to 5G. At high speeds, an increased noise emission from the boat area should also be taken into account.

Es ist daher Aufgabe der vorliegenden Erfindung, den Abrieb am Schiffchen zu verhindern und nach Möglichkeit auch den Lärm aus dem Schiffchenbereich zu reduzieren.It is therefore an object of the present invention to prevent abrasion on the boat and, if possible, to reduce the noise from the boat area.

Erfindungsgemäss wird dies bei einer Schiffchenstickmaschine oder Steppmaschine durch ein mit dem Schiffchen bei seiner Hin- und Herbewegung mitlaufendes Führungselement zur Führung des Schiffchens erreicht.According to the invention, this is achieved in a shuttle embroidery machine or quilting machine by means of a guiding element for guiding the shuttle traveling along with the shuttle during its reciprocating movement.

Weil das Führungselement mit dem Schiffchen mitläuft, findet keine Relativbewegung zwischen Schiffchen und Führungselement statt. Es entsteht daher kein Abrieb an den Seitenflächen des Schiffchens. Überraschenderweise führt die Verwendung des Führungselementes auch zu einer erheblichen Lärmreduktion.Because the guide element runs along with the shuttle, there is no relative movement between shuttle and guide element. There is therefore no abrasion on the Side surfaces of the boat. Surprisingly, the use of the guide element also leads to a significant noise reduction.

Zweckmässigerweise ist das Führungselement am Treiberlineal befestigt. Das Führungselement könnte aber auch durch eine zusätzliche Antriebseinrichtung bewegbar sein.Conveniently, the guide element is attached to the driver ruler. The guide element could also be movable by an additional drive means.

Zweckmässigerweise wird das Schiffchen beidseitig geführt. Zu diesem Zweck kann das Führungselement das Schiffchen mit Spiel bogenförmig umfassen. Es hat sich aber gezeigt, dass bereits eine erhebliche Reduktion des Abriebs erzielt wird, wenn das Führungselement das Schiffchen nur treiberlinealseitig führt. Eine solche Führung hat den Vorteil, dass bestehende Maschinen leicht umgerüstet werden können. Zum Umrüsten muss lediglich ein blockförmiges Führungselement am Treiberlineal montiert werden. Zweckmässigerweise besitzt das Führungselement zu seitlichen Führung des Schiffchens bombierte Berührungsflächen. Zu seiner Befestigung kann das Führungselement ein Durchgangsloch für eine Schraube zur Befestigung am Treiberlineal aufweisen. Zweckmässigerweise besitzt das Führungselemt auch mindestens einen Zapfen, der in eine Bohrung am Treiberlineal eingreifen kann. Diese Ausgestaltung des Führungselements erlaubt ein einfaches Befestigen.Conveniently, the boat is guided on both sides. For this purpose, the guide element may comprise the boat with game arcuate. However, it has been shown that a considerable reduction in abrasion is already achieved if the guide element guides the shuttle only on the driver's ruler side. Such a guide has the advantage that existing machines can be easily converted. For conversion, only a block-shaped guide element has to be mounted on the driver ruler. Conveniently, the guide element has curved contact surfaces for lateral guidance of the shuttle. For its attachment, the guide element may have a through hole for a screw for attachment to the driver ruler. Conveniently, the Führungselemt also has at least one pin which can engage in a bore on the driver ruler. This embodiment of the guide element allows easy attachment.

Ausführungsbeispiele der Erfindung werden nun unter Bezugnahme auf die Zeichnungen beschrieben.Embodiments of the invention will now be described with reference to the drawings.

Es zeigt:

Figur 1:
Eine Seitenansicht des stationären Stöcklis und des auf- und abwärts beweglichen Treiberlineals mit daran befestigtem Führungselement zur seitlichen Führung des Schiffchens,
Figur 2:
eine perspektivische Darstellung des Stöcklis gemäss Figur 1,
Figur 3:
das Stöckli gemäss den Figuren 1 und 2 von hinten betrachtet, jedoch mit weggelassenem Treiberlineal, wobei jedoch die Führungselemente und die Treiber sichtbar geblieben sind,
Figur 4:
eine Ansicht ähnlich wie in Figur 2, jedoch mit einer weiteren Ausführungsform des Führungselements,
Figur 5:
eine Ansicht von oben, welche die Formgebung des Führungselementes zeigt,
Figur 6:
eine perspektivische Darstellung der Führungsbahn für das Schiffchen und des Führungselementes gemäss den Figuren 4 und 5.
It shows:
FIG. 1:
A side view of the stationary Stöcklis and the up and down movable driver ruler with attached guide element for lateral guidance of the shuttle,
FIG. 2:
a perspective view of Stöckli in accordance FIG. 1 .
FIG. 3:
the Stöckli according to the Figures 1 and 2 viewed from the rear, but with omitted driver ruler, but the guide elements and drivers have remained visible,
FIG. 4:
a view similar to in FIG. 2 but with a further embodiment of the guide element,
FIG. 5:
a top view showing the shape of the guide element,
FIG. 6:
a perspective view of the guideway for the shuttle and the guide element according to the FIGS. 4 and 5 ,

Die Erfindung eignet sich nicht nur für neue Maschinen, sondern ermöglicht auch mit wenig Aufwand die Nachrüstung bestehender Maschinen. Die Figuren 1 bis 3 offenbaren daher auch, wie eine bestehende Maschine umgebaut werden kann. Das Stöckli 11 weist in bekannter Weise eine Vielzahl von Schiffchenbahnen 12 mit Laufflächen 13 für Schiffchen 15 auf. Mit dem Bezugszeichen 17 ist die vordere Stichplatte bezeichnet. Die hintere Stichplatte 19 ist nicht mehr nötig, kann aber beim Nachrüsten in der Maschine belassen werden. Das auf und ab bewegliche Treiberlineal 21 kann von beiliebiger Bauart sein. Das dargestellte Treiberlineal ist von der in der EP 1 055 761 beschriebenen Bauart. Er besteht aus einem Profil 23 mit Bohrungen, in welche die Treibernägel 25, 27 eingesetzt sind. Für jedes Schiffchen 15 ist am Treiberlineal 21 mittels einer Schraube 29 ein Führungselemet 31 befestigt. Durch dieses Führungselement 31 wird bei diesem Ausführungsbeispiel der Erfindung das Schiffchen 15 treiberlinealseitig geführt. Das Führungselement 31 ist blockförmig gestaltet und besteht vorzugsweise aus Kunststoff. Zur seitlichen Führung des Schiffchens 15 weist das Führungselement 31 bombierte Berührungsflächen 33 auf. Das Führungselement 31 besitzt ein Durchgangsloch 34 für die Schraube 29 und zwei Zapfen 37, welche in Bohrungen 39 des Treiberlineals 21 eingreifen und dafür sorgen, dass sich das Führungselement 31 in der richtigen Lage zum Schiffchen 15 befindet.The invention is not only suitable for new machines, but also allows the retrofitting of existing machines with little effort. The FIGS. 1 to 3 therefore also reveal how an existing machine can be rebuilt. The Stöckli 11 has in a known manner a plurality of Schiffchenbahnen 12 with treads 13 for 15 Schiffchen. By the reference numeral 17, the front needle plate is designated. The rear needle plate 19 is no longer necessary, but can be left in the machine during retrofitting. The up and down movable driver ruler 21 may be of any type. The illustrated driver ruler is of the in the EP 1 055 761 described type. It consists of a profile 23 with holes in which the driver nails 25, 27 are used. For each boat 15 a Führungselemet 31 is attached to the driver ruler 21 by means of a screw 29. By this guide member 31, the shuttle 15 is guided in this embodiment of the invention, the driver ruler side. The guide element 31 is designed block-shaped and is preferably made of plastic. For lateral guidance of the shuttle 15, the guide element 31 has convex contact surfaces 33. The guide member 31 has a through hole 34 for the screw 29 and two pins 37, which engage in holes 39 of the driver ruler 21 and ensure that the guide member 31 is in the correct position to the boat 15.

Im Betrieb der Maschine bewegt sich das Führungselement 31 durch das Treiberlineal 21 synchron mit den Treibern 25, 27, die das Schiffchen 15 mitnehmen, sodass keine Relativbewegung zwischen dem Schiffchen 15 und dem Führungselement 31 stattfindet. Beim beschriebenen Ausführungsbeispiel der Erfindung gleitet zwar das Schiffchen 15 nadelseitig immer noch der Stichplatte 17 entlang. Es hat sich aber in der Praxis gezeigt, dass ein mitlaufendes Führungselement 31, welches das Schiffchen 15 nur auf einer Seite führt, bereits eine sehr starke Reduktion des Abriebs am Schiffchen bewirkt.During operation of the machine, the guide element 31 moves through the driver ruler 21 in synchronism with the drivers 25, 27, which take the shuttle 15 so that there is no relative movement between the shuttle 15 and the guide element 31. In the described embodiment of the invention, although the shuttle 15 needle side still still slides along the throat plate 17. However, it has been found in practice that a follower guide element 31, which guides the shuttle 15 only on one side, already causes a very strong reduction of the abrasion on the boat.

Es ist bereits erwähnt worden, dass mit den beschriebenen Massnahmen die hintere Stichplatte 19 überflüssig wird. Diese ist relativ teuer in den Herstellung. Demgegenüber kann das Führungselement 31 wesentlich billiger hergestellt werden. Für neue Maschinen bringt somit die Erfindung auch eine Kostenreduktion.It has already been mentioned that with the measures described, the rear needle plate 19 becomes superfluous. This is relatively expensive to manufacture. In contrast, the guide member 31 can be made much cheaper. For new machines, the invention thus brings a cost reduction.

Die Figuren 4 bis 6 zeigen eine weitere Ausführungsform der Erfindung. Bei dieser wird das Schiffchen 15 durch ein Führungselement 31' beidseitig geführt. Das Schiffchen 15 wird vom Führungselement 31' mit etwas Spiel bogenförmig umfasst. Im Übrigen ist das Führungselement 31' gleich ausgebildet wie das Führungselement 31 gemäss den Figuren 1 und 3. Es kann ebenfalls mit einer Schraube 29 (nicht sichtbar) am Treiberlineal 21 befestigt werden, wobei Zapfen 37 in Bohrungen des Treiberlineals 21 eingreifen.The FIGS. 4 to 6 show a further embodiment of the invention. In this, the boat 15 is guided by a guide element 31 'on both sides. The boat 15 is arcuately covered by the guide member 31 'with some play. Incidentally, the guide element 31 'is the same design as the guide element 31 according to the FIGS. 1 and 3 , It can also be secured with a screw 29 (not visible) on the driver ruler 21, wherein pins 37 engage in bores of the driver ruler 21.

Zusammenfassend kann folgendes festgehalten werden:In summary, the following can be stated:

Die Schiffchenstickmaschine besitzt ein Treiberlineal 21 mit Treibern 25, 27 zur Hin- und Herbewegung des Schiffchens 15. Am Treiberbalken 21 ist ein Führungselement 31 zur Führung des Schiffchens 15 befestigt. Weil das Führungselement 31 mit dem Schiffchen 15 mitläuft, findet keine Reibung zwischen Führungselement 31 und Schiffchen statt, so dass der Abrieb am Schiffchen stark vermindert wird. Die hintere Stichplatte 19 ist nicht mehr erforderlich. Sie kann aber beim Nachrüsten in der Maschine belassen werden.The shuttle embroidery machine has a driver ruler 21 with drivers 25, 27 for reciprocating the shuttle 15. A guide element 31 for guiding the shuttle 15 is attached to the driver bar 21. Because the guide member 31 runs with the boat 15, there is no friction between the guide member 31 and boat instead, so that the abrasion of the shuttle is greatly reduced. The rear needle plate 19 is no longer required. However, it can be left in the machine during retrofitting.

Claims (10)

  1. Shuttle embroidery machine or quilting machine with a multitude of shuttle paths (12) that have an inclined or horizontal running surface (13) over which the shuttles (15) are movable to-and-fro and with a driver bar (21) with driver nails for the to-and-fro motion of the shuttles (15) over the running surfaces (13), characterized by a guiding element (31, 31') travelling with the respective shuttle.
  2. Shuttle embroidery machine or quilting machine according to claim 1, characterized in that the guiding element (31, 31') is placed on the driver bar (21).
  3. Shuttle embroidery machine or quilting machine according to claim 1, characterized in that the guiding element (31, 31') is movable by a driving device for travelling with the shuttle (15).
  4. Shuttle embroidery machine or quilting machine according to claim 1, characterized in that the guiding element (31, 31') has bowed contact surfaces (33) for guiding the shuttle (15).
  5. Shuttle embroidery machine or quilting machine according to one of the claims 1 to 4, characterized in that the guiding element (31, 31') has a through hole (34) for a screw (29) for fixing to the driver bar (21).
  6. Shuttle embroidery machine or quilting machine according to one of the claims 1 to 5, characterized in that the guiding element (31, 31') has at least one peg (37) that engages in a bore on the driver bar.
  7. Shuttle embroidery machine or quilting machine according to one of the claims 1 to 6, characterized in that the guiding element (31) is block-shaped.
  8. Shuttle embroidery machine or quilting machine according to one of the claims 1 to 7, characterized in that the guiding element (31) guides the shuttle (15) on the driver bar side.
  9. Shuttle embroidery machine or quilting machine according to one of the claims 1 to 3, characterized in that the guiding element (31, 31') guides the shuttle (15) on both sides.
  10. Shuttle embroidery machine or quilting machine according to claim 4, characterized in that the guiding element (31, 31') encircles the shuttle (15) arc-shaped with clearance.
EP07012875A 2006-07-20 2007-06-30 Shuttle embroidery machine or quilting machine Active EP1881098B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH11712006 2006-07-20

Publications (2)

Publication Number Publication Date
EP1881098A1 EP1881098A1 (en) 2008-01-23
EP1881098B1 true EP1881098B1 (en) 2012-08-29

Family

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Application Number Title Priority Date Filing Date
EP07012875A Active EP1881098B1 (en) 2006-07-20 2007-06-30 Shuttle embroidery machine or quilting machine

Country Status (4)

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EP (1) EP1881098B1 (en)
KR (1) KR101365473B1 (en)
CN (1) CN101109138B (en)
TW (1) TWI444516B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
CH705472A1 (en) 2011-09-08 2013-03-15 Laesser Ag Embroidery machine.
CH708828A1 (en) * 2013-11-08 2015-05-15 Lässer Ag Device for monitoring the Schifflifadens on an upper or lower-Schiffli.
CH710529A1 (en) 2014-12-16 2016-06-30 Lässer Ag A method for maintaining a distance between the end of a boat and a driver pin.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1508357A (en) * 1923-09-28 1924-09-09 Firm Vogtlandische Maschinenfa Shuttle embroidery machine
EP1055761B1 (en) * 1999-05-28 2002-01-16 Franz Lässer AG Shuttle embroidery machine with support carriage
KR20030073446A (en) * 2002-03-11 2003-09-19 엘지전자 주식회사 Apparatus for reducing collision of piston in reciprocating compressor
ATE312223T1 (en) * 2002-03-18 2005-12-15 Laesser Ag METHOD AND DEVICE FOR DRIVING THE BOATS OF A BOAT EMBROIDERY MACHINE

Also Published As

Publication number Publication date
KR20080009013A (en) 2008-01-24
TWI444516B (en) 2014-07-11
CN101109138B (en) 2012-07-04
KR101365473B1 (en) 2014-02-21
CN101109138A (en) 2008-01-23
TW200825236A (en) 2008-06-16
EP1881098A1 (en) 2008-01-23

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