EP1068385B1 - Method and device for producing seams - Google Patents
Method and device for producing seams Download PDFInfo
- Publication number
- EP1068385B1 EP1068385B1 EP99919103A EP99919103A EP1068385B1 EP 1068385 B1 EP1068385 B1 EP 1068385B1 EP 99919103 A EP99919103 A EP 99919103A EP 99919103 A EP99919103 A EP 99919103A EP 1068385 B1 EP1068385 B1 EP 1068385B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stitch
- textile
- sewing
- generating functional
- functional parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/10—Flat warp knitting machines for knitting through thread, fleece, or fabric layers, or around elongated core material
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/10—Double chain-stitch seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/24—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making blind-stitch seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
- D05B3/02—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing with mechanisms for needle-bar movement
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Definitions
- the invention relates to a method for producing sewing seams and comprises Device for performing the method.
- the sewing seam consists of two or more threads, and it is formed by looping a thread through it the loop of another thread is passed.
- the invention further comprises a sewing machine with at least two needles, with all moving parts of the sewing machine on only one side of the material are attached, as well as a special sewing material holder.
- the invention comprises a control.
- a process mistakenly publicly called a sewing process is referred to, introduces a thread loop into the textile by means of a hollow needle.
- the thread loop is inserted from the top. she
- the textile does not penetrate completely and is not included on the underside devouring itself or another thread.
- the seam is made therefore not a real connection, since the individual layers of the textile are separated by the produced loop series cannot be secured against separation.
- a sewing machine for sewing is more complex from US Pat. No. 4,503,788 Aircraft structures known from already cured fiber composite materials. This sewing machine requires a counterhold during the sewing process.
- German patent application DE-OS 195 29 084 A1 there is a sewing machine with which three-dimensional envelopes can be produced. in this connection is a sewing machine that works with a backing.
- a sewing device with robot-controlled sewing machine upper and lower parts is known from German Patent DE-PS 44 31 318 C2.
- the invention has for its object a method and an apparatus to create the type described above, which avoid the disadvantages mentioned, which in particular the sewing of large sewing material levels with minimal use of space enable and allow spatial sewing.
- a preferred one Application example for one-sided sewing is the sewing of reinforcement textiles for fiber composite materials. These textiles are not allowed to damage, not be kinked. By sewing individual textiles together and the subsequent impregnation of these textiles with a plastic the resulting fiber composite material can absorb significantly higher loads than in the unstitched state. Sewing large structures made of reinforcement textiles for fiber composite materials, e.g. for aircraft parts, using leads conventional sewing technology to a large space requirement, because that Material to be moved from different directions to the sewing machine got to. Only by being able to move all positions of the material with a movable Starting the sewing machine can reduce the space requirement to a minimum become.
- Fiber composite materials have a laminar structure and are made from reinforcement textiles and a matrix material. Only after the matrix material has hardened the actual fiber composite material is created. Will the reinforcement textiles with the matrix material with a strength-increasing thread material sewn before the matrix material is soaked with the hardening agent, so disadvantages of previous manufacturing processes can be avoided. Also allowed sewing the assembly and combination of different reinforcement textiles, what with the previously known textile manufacturing processes not possible.
- the sewing seam is formed by a Sewing needle 1 with a sewing thread 2 pierces the sewing material 3 and after it has been exceeded a near thread loop 4 forms its bottom dead center.
- a near thread loop 4 punctures a further sewing needle 5 with a sewing thread 6.
- the two Sewing needles 1 and 5 move in two different, intersecting Levels. They do not move linearly in these planes, but rather they describe coupling curves. This enables the sewing needle 5 and the sewing thread loop 4 formed by the sewing needle 1 in the sewing thread 2 is immersed. During the upward movement of the sewing needle 2, the sewing needle 5 dips deeper into the sewing material 3.
- FIG. 2 Gear mechanism causes. This mechanism is because of its constructive Simplicity described, but can be replaced by at least two replacement gears, which can be constructed according to the rules of Roberts.
- Fig. 2 shows a side view of the device.
- the device can be cut in half to be viewed as.
- the right half consists of the drive 9 with a drive shaft 10.
- the rotary motion of this shaft is on shaft 11 and from there again transmitted to the shaft 12.
- the shafts 11 and 12 are at one shaft end provided with a crank 13 and 14 each.
- Is on the crank 13 a rotatably mounted linear guide 15, on the crank 14 there is a rotatable supported bearing 16, which fixes the needle bar 17 in its axial direction.
- the needle bar 17 With the needle 18 out (Fig. 3). Described by the rotational movement of the drive shaft 10 the needle 18 the coupling curve 23 previously described (Fig. 1).
- the entire device is moved by an x-y-z moving unit 20 moved over the material.
- the x-y-z travel unit 20 is not shown in FIG. 2.
- the material to be sewn lies on a base 21 which allows the sewing needle to be penetrated.
- the device is provided with a throat plate 22 in its lower region, which also serves to fix the sewing material to the surface. The fixation is done by pressing the device accordingly the fabric 3 with the underlying fabric pad 21.
- the Device rotated around these three axes to move around the spatial Allow sewing.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Nähnähten und umfaßt eine Vorrichtung zur Durchführung des Verfahrens. Die Nähnaht besteht aus zwei oder mehr Fäden, und sie wird gebildet, indem die Schlinge eines Fadens durch die Schlinge eines anderen Fadens geführt wird.The invention relates to a method for producing sewing seams and comprises Device for performing the method. The sewing seam consists of two or more threads, and it is formed by looping a thread through it the loop of another thread is passed.
Die Erfindung umfaßt weiterhin eine Nähmaschine mit wenigstens zwei Nadeln, wobei alle beweglichen Teile der Nähmaschine auf nur einer Seite des Nähgutes angebracht sind, sowie einen speziellen Nähguthalter. Neben der Nähmaschine und dem Nähguthalter umfaßt die Erfindung eine Steuerung.The invention further comprises a sewing machine with at least two needles, with all moving parts of the sewing machine on only one side of the material are attached, as well as a special sewing material holder. In addition to the sewing machine and the sewing material holder, the invention comprises a control.
Handelsübliche Nähmaschinen stellen Nähnähte her, in denen ein Nähfaden oder mehrere Nähfäden mit sich selbst oder untereinander verschlungen werden. Die bekannten Nähstichtypen sind in DIN 61 400 klassifiziert und beschrieben. Allen Vorrichtungen zur Herstellung der dort beschriebenen, eine vollständige Penetration des Nähgutes bedingenden Nähstichtypen ist gemeinsam, daß mechanisch miteinander gekoppelte Maschinenelemente oberhalb und unterhalb der Nähgutebene angeordnet sind. Die mechanischen Kopplungselemente sind durch einen Maschinenständer geführt. Typische Maschinengestelle haben eine C-Form. Die Verarbeitung von ebenen Nähgütern, die nicht gefaltet werden können oder dürfen, ist damit kaum möglich. Ebene Nähgüter großer Abmessungen oder solche Nähgüter, die schlauch- oder hüllenförmig sind, können nicht verarbeitet werden. Handelsübliche Verfahren, die eine mechanische Entkopplung und eine elektronische Kopplung der Maschinenelemente oberhalb und unterhalb der Nähgutebene verwenden, setzen eine linienförmige Bewegung der Nähmaschine und eine ebene Bewegung des Nähgutes voraus. Dies macht es erforderlich, daß der Raum für die Nähmaschine immer mindestens die zweifache, in vielen Fällen sogar die vierfache Größe des Nähgutes haben muß, wenn alle Bereiche des Nähgutes mit Nähnähten versehen werden sollen.Commercial sewing machines produce sewing seams in which a sewing thread or several sewing threads are entwined with themselves or with each other. The Known sewing stitch types are classified and described in DIN 61 400. all Devices for producing the complete penetration described there The sewing stitch type that determines the sewing material has in common that mechanical coupled machine elements above and below the material level are arranged. The mechanical coupling elements are through one Machine stand guided. Typical machine frames have a C shape. The Processing of flat sewing goods that cannot or must not be folded, is hardly possible. Level sewing goods of large dimensions or such Sewing goods that are tubular or sleeve-shaped cannot be processed. Commercially available methods that include mechanical decoupling and electronic Coupling of the machine elements above and below the material level use, put a linear movement of the sewing machine and a flat Movement of the sewing material ahead. This requires space for the sewing machine always at least twice, in many cases even must be four times the size of the sewing material if all areas of the sewing material have Sewing seams should be provided.
Das Vernähen räumlich gekrümmter Nähgüter oder solcher Nähgüter, die vor dem Vernähen räumlich fixiert werden müssen, ist mit den bekannten Maschinen nicht möglich. Ein Verfahren, das irrtümlicherweise in der Öffentlichkeit als Nähverfahren bezeichnet wird, führt zu einer Einbringung einer Fadenschlinge in das Textil mittels einer Hohlnadel. Die Fadenschlinge wird von der Oberseite eingeführt. Sie penetriert jedoch das Textil nicht vollständig und wird auf der Unterseite nicht mit sich selbst oder einem weiteren Faden verschlungen. Die hergestellte Naht stellt daher keine echte Verbindung dar, da die einzelnen Lagen des Textils durch die hergestellte Schlingenreihe nicht gegen ein Trennen gesichert werden.The sewing of spatially curved sewing materials or such sewing materials that are in front of the Sewing need to be fixed in space is not possible with the known machines possible. A process mistakenly publicly called a sewing process is referred to, introduces a thread loop into the textile by means of a hollow needle. The thread loop is inserted from the top. she However, the textile does not penetrate completely and is not included on the underside devouring itself or another thread. The seam is made therefore not a real connection, since the individual layers of the textile are separated by the produced loop series cannot be secured against separation.
Aus der Deutschen Auslegeschrift AS 1 069 457 ist eine von Hand geführte, transportable Kettenstichmaschine mit einer bogenförmigen Nadel bekannt.From the German Ausleschrift AS 1 069 457 is a hand-guided, Transportable chain stitch machine known with an arcuate needle.
Aus der US-Patentschrift 4 503 788 ist eine Nähmaschine zum Nähen komplexer Flugzeugstrukturen aus bereits ausgehärteten Faserverbundwerkstoffen bekannt. Diese Nähmaschine erfordert einen Gegenhalt während des Nähvorganges.A sewing machine for sewing is more complex from US Pat. No. 4,503,788 Aircraft structures known from already cured fiber composite materials. This sewing machine requires a counterhold during the sewing process.
In der Deutschen Offenlegungsschrift DE-OS 195 29 084 A1 ist eine Nähmaschine beschrieben, mit der dreidimensionale Hüllen hergestellt werden können. Hierbei handelt es sich um eine Nähmaschine, die mit einem Gegenhalt arbeitet.In the German patent application DE-OS 195 29 084 A1 there is a sewing machine with which three-dimensional envelopes can be produced. in this connection is a sewing machine that works with a backing.
In der US-Patentschrift 5 458 075 ist eine Nähmaschine mit einer mechanischen Entkopplung und einer elektronischen Kopplung der Funktionselemente beschrieben. Sie arbeitet mit einem zweiseitigen Nähgutzugriff wie konventionelle Nähmaschinen.In U.S. Patent No. 5,458,075 there is a sewing machine with a mechanical Decoupling and an electronic coupling of the functional elements described. It works with double-sided access to sewing material like conventional sewing machines.
Aus der Deutschen Offenlegungsschrift DE-OS 33 38 405 A1 sind verschiedene Nähmaschinen bekannt. Eine der dargestellten Nähmaschinen, die von zwei Seiten auf das Nähgut zugreift, bildet einen bekannten Steppstich. Ferner ist in diesem Dokument eine einseitig arbeitende Nähmaschine dargestellt, die einen Kettenstich bildet.From the German published application DE-OS 33 38 405 A1 are different Known sewing machines. One of the sewing machines shown, from two sides accesses the material, forms a well-known lockstitch. Furthermore, in this Document shown a one-sided sewing machine that has a chain stitch forms.
Eine Nähvorrichtung mit robotergesteuerten Nähmaschinenober- und unterteilen ist aus der Deutschen Patentschrift DE-PS 44 31 318 C2 bekannt.A sewing device with robot-controlled sewing machine upper and lower parts is known from German Patent DE-PS 44 31 318 C2.
Bekannt ist das in der Offenlegungsschrift DE 29 21 026 beschriebene Verfahren, das zur Bildung eines ähnlichen Stichbildes wie das hier beschriebene unter der Verwendung von zwei Nadeln führt. Dieses Verfahren beruht allerdings darauf, daß auf der Gegenseite des Nähgutes ein zusätzliches, mit den Nadeltrieben mechanisch gekoppeltes Maschinenelement, nämlich ein Umlauf- oder ein Kettenstichgreifer, betrieben wird. Die Vorrichtung greift damit auf die bestehenden Nähverfahren zurück und bedingt die Anordnung von Maschinenelementen auf beiden Seiten des Nähgutes. Weiterhin sind die Nadeln dort in einer Ebene angeordnet, und die Nadeln bewegen sich in dieser Ebene auf sich innerhalb des Nähgutes schneidenden Geraden.The method described in the published patent application DE 29 21 026 is known. that to form a stitch pattern similar to that described here under the Use of two needles leads. However, this procedure is based on that on the opposite side of the material to be sewn, mechanically with the needle drives coupled machine element, namely a rotary or chain stitch gripper, is operated. The device thus uses the existing sewing methods back and requires the arrangement of machine elements on both Sides of the material. Furthermore, the needles are arranged in one plane there, and the needles move in this plane on themselves within the material intersecting straight lines.
Ebenfalls bekannt ist das in der deutschen Offenlegungsschrift OS 1 685 043 beschriebene Verfahren sowie die dort beschriebene Vorrichtung. In diesem Fall bewegen sich die für die Stichbildung erforderlichen Nadeln in zwei Ebenen, die parallel zueinander angeordnet sind. Weiterhin setzt die dort beschriebene Vorrichtung voraus, daß eine der beiden Nadeln eine ausgeprägte Rastphase besitzt. Derartige Rastphasen sind außerordentlich schwer zu kontrollieren und zu steuern, da Maschinenschwingungen auftreten und ein schnell bewegtes Maschinenteil nicht, wie es dort erforderlich ist, für eine extrem kurze Zeit schwingungsfrei ruhig gelagert werden kann.Also known is that described in German Offenlegungsschrift OS 1 685 043 Method and the device described there. In this case, move the needles needed for stitch formation in two planes that are parallel are arranged to each other. Furthermore, the device described there ahead that one of the two needles has a distinct locking phase. Such resting phases are extremely difficult to control and to control, because machine vibrations occur and a fast moving machine part not, as is required there, vibration-free for an extremely short time can be stored quietly.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der eingangs beschriebenen Art zu schaffen, die die genannten Nachteile vermeiden, die insbesondere das Vernähen großer Nähgutebenen unter minimalem Raumeinsatz ermöglichen und das räumliche Vernähen erlauben.The invention has for its object a method and an apparatus to create the type described above, which avoid the disadvantages mentioned, which in particular the sewing of large sewing material levels with minimal use of space enable and allow spatial sewing.
Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Patentanspruchs 1.This object is achieved by the characterizing features of the patent claim 1.
Unter der Voraussetzung des nur einseitigen Zugriffs auf das Nähgut und unter Vermeidung weiterer stich- oder schlingenbildender Funktionselemente gelingt es, mit zwei oder mehr Nähnadeln eine Nähnaht herzustellen, bei der die Schlinge eines Nähfadens durch die Schlinge eines anderen Nähfadens geführt wird. Durch die Erfindung wird das Vernähen großer Nähgutebenen unter minimalem Raumeinsatz ermöglicht und das Verfahren für das räumliche Vernähen einsetzbar.Provided only one-sided access to the material and under Avoiding further stitch-forming or loop-forming functional elements with two or more sewing needles to produce a sewing seam in which the loop is one Sewing thread is passed through the loop of another sewing thread. By the invention will sew large levels of material with minimal space enables and the method can be used for spatial sewing.
Die Erfindung erlaubt ein Nähen von verschiedenen Materialien. Ein bevorzugtes Anwendungsbeispiel für ein einseitiges Nähen ist das Vernähen von Verstärkungstextilien für Faserverbundwerkstoffe. Diese Textilien dürfen, um sie nicht zu schädigen, nicht geknickt werden. Durch das Vernähen einzelner Textilien miteinander und die anschließende Imprägnierung dieser Textilien mit einem Kunststoff kann der so entstehende Faserverbundwerkstoff deutlich höhere Lasten aufnehmen als im unvernähten Zustand. Das Vernähen großer Strukturen aus Verstärkungstextilien für Faserverbundwerkstoffe, z.B. für Flugzeugteile, führt unter Verwendung der konventionellen Nähtechnik zu einem großen Raumbedarf, da das Nähgut aus unterschiedlichen Richtungen zu der Nähmaschine bewegt werden muß. Nur durch die Möglichkeit, alle Positionen des Nähgutes mit einer beweglichen Nähmaschine anzufahren, kann der Raumbedarf auf ein Minimum reduziert werden.The invention allows different materials to be sewn. A preferred one Application example for one-sided sewing is the sewing of reinforcement textiles for fiber composite materials. These textiles are not allowed to damage, not be kinked. By sewing individual textiles together and the subsequent impregnation of these textiles with a plastic the resulting fiber composite material can absorb significantly higher loads than in the unstitched state. Sewing large structures made of reinforcement textiles for fiber composite materials, e.g. for aircraft parts, using leads conventional sewing technology to a large space requirement, because that Material to be moved from different directions to the sewing machine got to. Only by being able to move all positions of the material with a movable Starting the sewing machine can reduce the space requirement to a minimum become.
Faserverbundwerkstoffe sind laminar aufgebaut und werden aus Verstärkungstextilien und einem Matrixmaterial hergestellt. Erst durch die Aushärtung des Matrixmaterials entsteht der eigentliche Faserverbundwerkstoff. Werden die Verstärkungstextilien mit dem Matrixmaterial mit einem festigkeitserhöhenden Fadenmaterial vernäht ehe das Matrixmaterial mit dem Härtungsmittel getränkt wird, so können Nachteile bisheriger Fertigungsverfahren vermieden werden. Ferner gestattet das Vernähen die Konfektionierung und Kombination unterschiedlicher Verstärkungstextilien, was mit den bisher bekannten textilen Fertigungsverfahren nicht möglich ist.Fiber composite materials have a laminar structure and are made from reinforcement textiles and a matrix material. Only after the matrix material has hardened the actual fiber composite material is created. Will the reinforcement textiles with the matrix material with a strength-increasing thread material sewn before the matrix material is soaked with the hardening agent, so disadvantages of previous manufacturing processes can be avoided. Also allowed sewing the assembly and combination of different reinforcement textiles, what with the previously known textile manufacturing processes not possible.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Patentansprüche 2 bis 7.Further advantageous embodiments of the invention are the subject of the claims 2 to 7.
Die Erfindung wird nachfolgend anhand eines zeichnerisch dargestellten Ausführungsbeispiels näher erläutert.The invention is described below with reference to an exemplary embodiment shown in the drawing explained in more detail.
Es zeigt:
- Fig. 1
- Bildung eines einzelnen Nähstiches nach dem erfindungsgemäßen Verfahren,
- Fig. 2
- Seitenansicht der erfindungsgemaßen Vorrichtung und
- Fig. 3
- Draufsicht auf einen Kurbelmechanismus.
- Fig. 1
- Formation of a single sewing stitch using the method according to the invention,
- Fig. 2
- Side view of the device according to the invention and
- Fig. 3
- Top view of a crank mechanism.
Wie in Fig. 1 ersichtlich, wird in diesem Beispiel die Nähnaht gebildet, indem eine
Nähnadel 1 mit einem Nähfaden 2 in das Nähgut 3 einsticht und nach der Überschreitung
ihres unteren Totpunktes eine Nahfadenschlinge 4 bildet. In die Nähfadenschlinge
4 sticht eine weitere Nähnadel 5 mit einem Nähfaden 6 ein. Die beiden
Nähnadeln 1 und 5 bewegen sich in zwei unterschiedlichen, einander schneidenden
Ebenen. Sie bewegen sich in diesen Ebenen nicht linienförmig, sondern
sie beschreiben Koppelkurven. Hierdurch wird ermöglicht, daß die Nähnadel 5 und
die von der Nähnadel 1 in dem Nähfaden 2 gebildete Nähfadenschlinge 4 eintaucht.
Während der Aufwärtsbewegung der Nähnadel 2 taucht die Nähnadel 5
tiefer in das Nähgut 3 ein. Auch sie bildet nach dem Überschreiten ihres unteren
Totpunktes mit dem Nähfaden 6 eine Nähfadenschlinge 7, in die wiederum die
Nähnadel 1 mit dem Nähfaden 2 eintaucht. Da die Nähfadenschlinge 7 erst zu einem
späteren Zeitpunkt gebildet wird, ist sie in Fig. 1 nicht dargestellt. Während
der weiteren Aufwärtsbewegung der Nähnadel 5 wird die um diese Nähnadel liegende
Nähfadenschlinge 4 durch das Nähgut 3 abgestreift. Zur Realisierung dieses
Verfahrens beschreiben die Nähnadeln 1 und 5 achtförmige, einander durchdringende
Koppelkurven 23. Die Koppelkurven 23 sind so ausgelegt, daß der
Schnittpunkt der einzelnen Koppelkurven 23 unterhalb des Nähgutes 3 liegt. Dieser
Schnittpunkt ist in Fig. 1 nicht zu sehen, weil dort bereits die Horizontalbewegung
der Vorrichtung überlagert ist. Der Schnittpunkt der beiden Bewegungsebenen
liegt ebenfalls unterhalb der Nähgutebene. Während der Penetrationsbewegung
bewegen sich die Nähnadeln 1 und 5 näherungsweise auf einer Geraden,
die räumlich schräg auf das Nähgut 3 gerichtet ist. Nach dieser nahezu geradlinigen
Nähnadelbewegung durchschreiten die Nähnadeln 1 und 5 den unteren bogenförmigen
Teil der Koppelkurve 23. In diesem Zeitraum wird die Vorrichtung
über das Nähgut 3 bewegt, so daß sich der innerhalb der Nähgutebene befindliche
Bereich der jeweiligen Nähnadel 1 oder 5 um eine senkrecht zur Nähnadel 1 oder
5 stehende, gedachte Achse 8 dreht. Hierdurch wird gleichzeitig der Fortschritt der
Nahtbildung bewirkt. Dies bedeutet, daß sich die Nähnadeln 1 und 5 kontinuierlich
in unterschiedlichen Phasen bewegen, wobei ein ständiger Wechsel zwischen einer
vornehmlich linearen und einer vornehmlich rotatorischen Bewegung erfolgt.As can be seen in FIG. 1, in this example the sewing seam is formed by a
Sewing needle 1 with a sewing thread 2 pierces the sewing material 3 and after it has been exceeded
a near thread loop 4 forms its bottom dead center. In the sewing thread loop
4 punctures a further sewing needle 5 with a
Die beschriebene Bewegung der Nähnadeln wird durch den in Fig. 2 gezeigten Getriebemechanismus bewirkt. Dieser Mechanismus wird wegen seiner konstruktiven Einfachheit beschrieben, kann aber durch mindestens zwei Ersatzgetriebe, die nach den Regeln von Roberts konstruiert werden können, substituiert werden.The described movement of the sewing needles is shown in FIG. 2 Gear mechanism causes. This mechanism is because of its constructive Simplicity described, but can be replaced by at least two replacement gears, which can be constructed according to the rules of Roberts.
Fig. 2 zeigt eine Seitenansicht der Vorrichtung. Die Vorrichtung kann in zwei Hälften
betrachtet werden. Die rechte Hälfte besteht aus dem Antrieb 9 mit einer Antriebswelle
10. Die Drehbewegung dieser Welle wird auf die Welle 11 und von dort
wiederum auf die Welle 12 übertragen. Die Wellen 11 und 12 sind an einem Wellenende
mit je einer Kurbel 13 und 14 versehen. Auf der Kurbel 13 befindet sich
eine drehbar gelagerte Linearführung 15, auf der Kurbel 14 befindet sich ein drehbar
gelagertes Auflager 16, das die Nadelstange 17 in ihrer axialen Richtung fixiert.
Durch die Linearführung 15 und das Auflager 16 wird die Nadelstange 17 mit
der Nadel 18 geführt (Fig. 3). Durch die Drehbewegung der Antriebswelle 10 beschreibt
die Nadel 18 die bereits zuvor beschriebene Koppelkurve 23 (Fig. 1).
Gleichzeitig wird die Drehbewegung der Antriebswelle 10 auf die Welle 19 der linken
Vorrichtungshälfte übertragen. Diese zweite Vorrichtungshälfte ist wie die
rechte Vorrichtungshälfte aufgebaut, die Kurbeln der linken Vorrichtungshälfte sind
so ausgerichtet, daß sie gegenüber den Kurbeln 13 und 14 phasenversetzt umlaufen.Fig. 2 shows a side view of the device. The device can be cut in half
to be viewed as. The right half consists of the drive 9 with a
Die gesamte Vorrichtung wird in dem Beispiel durch eine x-y-z-Verfahreinheit 20
über das Nähgut bewegt. Die x-y-z-Verfahreinheit 20 ist in Fig. 2 nicht dargestellt.
Das Nähgut liegt auf einer Unterlage 21, die das Penetrieren der Nähnadel gestattet.
Die Vorrichtung ist in ihrem unteren Bereich mit einer Stichplatte 22 versehen,
die gleichzeitig zur Fixierung des Nähgutes gegenüber der Unterlage dient.
Die Fixierung geschieht durch ein entsprechendes Andrücken der Vorrichtung auf
das Nähgut 3 mit der darunterliegenden Nähgutunterlage 21. Zusätzlich kann die
Vorrichtung rotatorisch um diese drei Achsen bewegt werden, um das räumliche
Vernähen zu gestatten.In the example, the entire device is moved by an x-y-z moving unit 20
moved over the material. The x-y-z travel unit 20 is not shown in FIG. 2.
The material to be sewn lies on a base 21 which allows the sewing needle to be penetrated.
The device is provided with a
Claims (8)
- Method for the production of sewed seams for which all stitch and seam generating functional parts of the device are situated on only one side of the textile, said stitch and seam generating functional parts are moving on planes which are directed obliquely towards the textile and the textile is laid on a support unit which allows the penetration of the stitch and seam generating functional parts, characterized in, that at least two loops of threads are penetrating each other and that all stitch and seam generating functional parts of the device are situated on only one side of the textile, said stitch and seam generating functional parts are moving on planes which are directed obliquely towards the textile and intersecting each other and the stitch and seam generating functional parts are describing on this planes coupling curves which describe a permanent change between a principally linear and a principally rotatory movement of the needles whereby the single coupling curves possess on the other side of the textile a sufficient approach towards each other to transmit a loop of a thread from one stitch and seam generating functional part to the next stitch and seam generating functional part, whereby furthermore said textile is situated on a support unit which allows the penetration of the stitch and seam generating functional parts and on which the textile is fixed by a counter-holder which is connected with the device, whereby said device is moved over the textile in steps making use of a step-moving transport-unit which is switched electronically or mechanically by the drive shaft during the rotatory movements of the stitch and seam generating functional parts so that the stitch and seam generating functional parts are rotating around an imagined axis which lies in the textile and at the beginning of the process the device is positioned on the textile in a way that the stitch and seam generating functional parts are penetrating the textile in a perpendicular way.
- Method according to claim 1, characterized in, that the drive shaft of the device is coupled electronically with the control unit of the transport unit so that the transport unit is operated in dependence of the turning speed of the drive shaft of the device.
- Method according to claim 1 or 2, characterized in, that the geometry of the sewed seam is given from a design program to the control unit of the transport unit in combination with a control routine which allows to change the direction of the seam.
- Method according to one of the claims 1 to 3, characterized in, that the settings of the cranks, the distances between the cranks and the length of the needle stick and thereby the length of the stitches can be varied.
- Device to perform the method according to one of the claims 1 to 4, characterized in, that it contains stitch and seam generating functional parts, said stitch and seam generating functional parts being beared in a way that they are movable on planes which are directed obliquely towards a textile which is brought into the device, that the device contains a rotatable and eccentrically beared linear guideway (14), so that an additional phase displacement of the movements of the stitch and seam generating functional parts can result in order to fix the position of the stitch and seam generating functional parts to each other in the phase of the loop generation of the thread and in the phase of catching the loops of the threads (4 and 7)
- Device according to one of the claims 1 to 5, characterized in, that for a spherical sewing the support unit (21) for the textile is flexible in a way that spherical geometries can be generated with it, and the counter-holder (22) of the device can be adapted to the shape of the support unit and the device can be rotated around the three axes additionally to the linear movements.
- Device according to one of the claims 1 to 6, characterized in, that the transport unit for the movement may be integrated in the device in a way that the elements of the transport unit are supported by the plane of the textile or the textile (3).
- Device according to claim 7, characterized in, that the transport unit for the movement may be integrated in the device in a way that a manual guiding of the device and/or a sewing of tube-shaped or sleeve-shaped textiles is possible.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813887 | 1998-03-28 | ||
| DE19813887A DE19813887A1 (en) | 1998-03-28 | 1998-03-28 | Method and device for producing sewing seams |
| PCT/DE1999/000797 WO1999050492A1 (en) | 1998-03-28 | 1999-03-20 | Method and device for producing seams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1068385A1 EP1068385A1 (en) | 2001-01-17 |
| EP1068385B1 true EP1068385B1 (en) | 2002-10-23 |
Family
ID=7862758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99919103A Expired - Lifetime EP1068385B1 (en) | 1998-03-28 | 1999-03-20 | Method and device for producing seams |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6357371B1 (en) |
| EP (1) | EP1068385B1 (en) |
| AU (1) | AU3700099A (en) |
| DE (3) | DE19813887A1 (en) |
| WO (1) | WO1999050492A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004012822B3 (en) * | 2004-03-16 | 2005-06-16 | Ksa Gmbh & Co. Kg | Sewing machine needle chain stitch mechanism has thread trap operating in conjunction with powered thread puller |
| DE102004055592B4 (en) * | 2004-11-18 | 2021-03-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for connecting at least two components made of a thermoplastic fiber composite material |
| DE102015110855B4 (en) | 2015-07-06 | 2019-12-05 | Technische Universität Chemnitz | Method for manufacturing complex 3D preforms |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069457B (en) * | 1959-11-19 | Hand-operated, transportable chain stitch sewing machine | ||
| US1714928A (en) * | 1926-06-23 | 1929-05-28 | Victor J Sigoda | Stitch-forming mechanism for sewing machines |
| US2058271A (en) * | 1932-07-23 | 1936-10-20 | Joseph Arciere | Sewing machine |
| US2369183A (en) * | 1939-10-05 | 1945-02-13 | Mansew Pinking Attachment Corp | Multiple needle stitching mechanism |
| US2491457A (en) * | 1945-02-06 | 1949-12-13 | Man Sew Corp | Multiple needle stitching mechanism |
| US2637290A (en) * | 1947-07-02 | 1953-05-05 | Man Sew Corp | Multiple needle stitching mechanism |
| DE1685043A1 (en) * | 1968-03-05 | 1971-03-18 | Friedrich Schweinfurter | Sewing machine and method for making a seam from one side of the material |
| DE2921026A1 (en) | 1979-05-23 | 1980-12-04 | Stopanski Rila | Sewing machine with alternately-operating twin needle-bars - producing decorative two-thread chain-stitch or three-thread lock-stitch seams |
| US4503788A (en) * | 1982-09-24 | 1985-03-12 | Grumman Aerospace Corporation | Translaminar stitching apparatus for composite airframe part assembly |
| ES526144A0 (en) * | 1982-10-25 | 1984-08-16 | Gerber Scient Inc | APPARATUS TO MANUFACTURE THREE-DIMENSIONAL ARTICLES FROM PATTERN PIECES OF LAMINATED MATERIAL |
| FR2658841B1 (en) * | 1990-02-26 | 1993-06-11 | Aerospatiale | METHOD AND DEVICE FOR PRODUCING REINFORCING ELEMENTS COMPOSED OF RESISTANT FIBERS. |
| GB9406537D0 (en) * | 1994-03-31 | 1994-05-25 | British Aerospace | Blind stitching apparatus and composite material manufacturing methods |
| DE4431318C2 (en) * | 1994-09-02 | 1997-05-28 | Ksl Keilmann Sondermaschinenba | Sewing device |
| US5458075A (en) * | 1994-09-15 | 1995-10-17 | Tice Engineering And Sales, Inc. | Electronically geared sewing machine |
| DE19529084C2 (en) * | 1995-08-08 | 1999-01-14 | Altin Naehtechnik Gmbh | Method and device for forming three-dimensional envelopes |
-
1998
- 1998-03-28 DE DE19813887A patent/DE19813887A1/en not_active Withdrawn
-
1999
- 1999-03-20 EP EP99919103A patent/EP1068385B1/en not_active Expired - Lifetime
- 1999-03-20 US US09/647,485 patent/US6357371B1/en not_active Expired - Fee Related
- 1999-03-20 DE DE19980552T patent/DE19980552D2/en not_active Expired - Fee Related
- 1999-03-20 AU AU37000/99A patent/AU3700099A/en not_active Abandoned
- 1999-03-20 DE DE59903170T patent/DE59903170D1/en not_active Expired - Fee Related
- 1999-03-20 WO PCT/DE1999/000797 patent/WO1999050492A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| DE19980552D2 (en) | 2001-05-17 |
| WO1999050492A1 (en) | 1999-10-07 |
| AU3700099A (en) | 1999-10-18 |
| DE19813887A1 (en) | 1999-09-30 |
| EP1068385A1 (en) | 2001-01-17 |
| DE59903170D1 (en) | 2002-11-28 |
| US6357371B1 (en) | 2002-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69510491T2 (en) | Method and device for producing a reinforcing plate for a part of composite material | |
| WO2001000914A1 (en) | Method for producing multiaxial warp knit fabric | |
| DE2823800A1 (en) | TEXTILE AREA AS WELL AS PROCESS AND DEVICE FOR MANUFACTURING THESSES | |
| DD217553B3 (en) | METHOD AND DEVICE FOR PRODUCING A TEXTILE TRACK | |
| EP1068385B1 (en) | Method and device for producing seams | |
| DE69206524T2 (en) | Textile tubular reinforcement for material reinforcement and device for its manufacture. | |
| DE3801240A1 (en) | COMBINABLE SEWING MACHINE, PROVIDED FOR DRIVING ADDITIONAL DEVICES | |
| DE2930824C2 (en) | Crochet galloon machine | |
| EP1182287A2 (en) | Blind stitch sewing machine | |
| DE10125108B4 (en) | Multi-needle chain stitch sewing machine and method for forming a sewing pattern in a fabric | |
| DE69900242T2 (en) | Fibrous reinforcement for a part made of composite material and method and device for its production | |
| DE3515627A1 (en) | DRIVE SYSTEM FOR THE LOOP PATTERN OF AN EMBROIDERY MACHINE | |
| DE2922061A1 (en) | DEVICE FOR FORMING A DOUBLE CHAIN STITCH ON A SEWING MACHINE | |
| EP2107147B1 (en) | Device and method for preparing at least one thread in a backstitch sewing machine | |
| DE3234864C2 (en) | Method of sewing successive sewing patterns on a zigzag sewing machine | |
| DE3225438C2 (en) | ||
| DE19751011C2 (en) | sewing machine | |
| DE2831471C2 (en) | Linking machine | |
| CH677678A5 (en) | ||
| CH690183A5 (en) | Warp knitting machine. | |
| DE69303709T2 (en) | METHOD FOR THE AUTOMATIC PRODUCTION OF A TEXTILE TRACK WITH DECORATIVE EFFECTS AND DEVICE FOR IMPLEMENTING THE METHOD | |
| DE3433214A1 (en) | AUTOMATIC METHOD AND DEVICE FOR RECEIVING CURVED EDGES OF FABRIC PARTS ON CLOTHES | |
| CH661300A5 (en) | Warp knitting machine. | |
| DE3817599C2 (en) | ||
| DE2420643C2 (en) | Device for the production of a hose consisting of rows of stitches running parallel to its longitudinal axis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20000908 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE ES FR GB IT LI NL |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 20011128 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE ES FR GB IT LI NL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021023 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 59903170 Country of ref document: DE Date of ref document: 20021128 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20030313 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030429 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20030724 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20040324 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20050307 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050311 Year of fee payment: 7 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050331 |
|
| BERE | Be: lapsed |
Owner name: *MOLL KLAUS-UWE Effective date: 20050331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060320 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060331 Year of fee payment: 8 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060320 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20061130 |
|
| BERE | Be: lapsed |
Owner name: *MOLL KLAUS-UWE Effective date: 20050331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080331 Year of fee payment: 10 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070320 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091001 |