EP0049312A1 - Sewing machine - Google Patents

Sewing machine Download PDF

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Publication number
EP0049312A1
EP0049312A1 EP81100441A EP81100441A EP0049312A1 EP 0049312 A1 EP0049312 A1 EP 0049312A1 EP 81100441 A EP81100441 A EP 81100441A EP 81100441 A EP81100441 A EP 81100441A EP 0049312 A1 EP0049312 A1 EP 0049312A1
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EP
European Patent Office
Prior art keywords
needle plate
presser
sewing
plate
machine
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.)
Granted
Application number
EP81100441A
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German (de)
French (fr)
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EP0049312B1 (en
Inventor
Siegfried Dipl.-Ing. Mende
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Kombinat Textima VEB
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Kombinat Textima VEB
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Publication date
Application filed by Kombinat Textima VEB filed Critical Kombinat Textima VEB
Priority to AT81100441T priority Critical patent/ATE10654T1/en
Publication of EP0049312A1 publication Critical patent/EP0049312A1/en
Application granted granted Critical
Publication of EP0049312B1 publication Critical patent/EP0049312B1/en
Expired legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Definitions

  • the invention relates to a sewing machine, which is equipped for guiding and transporting the sewing material with a stitch plate attached to a stitch plate receiving strip of a machine bed, a spring-loaded fabric presser arranged above the stitch plate and with a fabric slide located underneath, which temporarily passes through slots in the stitch plate and rises from the level of the latter in order to transport the sewing material.
  • the sewing process is associated with strong vibrations.
  • the invention is now based on the new finding that the known natural vibrations of the needle plate, which arise during the sewing process, in particular in the fabric presser / needle plate vibration system, form one of the causes for the presser lifting off the material to be sewn.
  • a second basis for the present invention consists in the further realization that the time at which the sewing material is at rest on high-speed sewing machines is not sufficient for the free vibrations of the presser and the throat plate to decay sufficiently.
  • the presser / throat plate vibration system is to be improved in such a way that there are no disturbing overlaps of its free vibrations with the forced vibrations of the presser / pusher system.
  • the invention characterized in the claims sets itself the task of creating a sewing machine in which the lifting of the presser during the sewing process is further suppressed by the free oscillations of the system presser / throat plate due to a reduction in the natural vibration behavior of the throat plate, reducing the spring stiffness of the latter is hindered.
  • the object of the invention is achieved in that the part of the needle plate opposite the presser is freely arranged in a recess in the machine bed. It is possible to interrupt the throat plate holder or to equip the Stiohplatte with incisions approximately transverse to the sewing direction.
  • the presser / throat plate system swings out sooner than is the case if the throat plate lies directly on an uninterrupted throat plate receiving bar, as before, without special precautions.
  • the arrangement and attachment of the throat plate is provided so that the free Vibrations of the presser / throat plate system have sufficiently subsided due to the reduction in the spring stiffness of the throat plate before the cloth pusher transports the material again and sets the presser into forced vibrations. A disturbing superposition of the above-mentioned types of vibration does not occur.
  • the sewing machine comprises a needle bar 1 with a clamped sewing needle 2, which can be moved vertically in the usual way. Furthermore, a presser 4 under the pressure of a spring 3 and a cloth pusher 5 belong to the sewing tools.
  • the material 8 receives its guidance between the presser 5 and a needle plate 7 fastened to a machine bed 6.
  • the needle plate 7 is out with slots 7 a which the fabric pusher 5 passes through temporarily to rise from the plane of the needle plate 7 and to transport the sewing material 8.
  • the slider 5 and the needle plate 7 are housed in a recess 9 of the machine bed 6, which is partially limited by a needle plate receiving bar 6 a and also receives a thread gripping device, not shown.
  • a lockstitch or chain stitch sewing machine can form the basis for the invention shown here.
  • the needle plate 7 was fastened in such a way that its natural vibration behavior leads to a reduction in the free vibrations of the presser 5 / needle plate 7 system in that the selected arrangement provides less spring stiffness for the needle plate 7.
  • Fig. 2 shows such a receptacle for a needle plate 7, in which the needle plate receiving bar 6 a on each side of the needle plate 7 between the fastening point. len 10; 11 and a slide plate 12 is provided with an interruption 13.
  • the part of the needle plate 7 opposite the presser 4 receives a free arrangement in the recess 9 of the machine bed 6, which corresponds to a reduction in the spring stiffness of the needle plate 7 compared to the conventional fixed position of the needle plate. Screws are preferred as the type of fastening.
  • the cloth pusher 5 passes through the slots 7 a of the needle plate 7 during the sewing process, thereby pressing against the sewing material 8 in order to transport the same, the cloth pusher 5 sets the presser 4 resting on the sewing material 8 in forced vibrations.
  • the presser 4 is lifted off the throat plate 7.
  • the sewing tools fabric presser 4 and fabric pusher 5 swing together as a system in this phase.
  • the cloth presser 4 hits the stitch plate 7 again, with the sewing material 8 in between.
  • the shape and dimensions of the one-sided free needle plate 7 naturally depend on the occurring or desired vibration conditions.
  • the interruption 13 of the needle plate receiving bar 6 a or the slots 14; 15 of the throat plate 7 each have different lengths. It is also viable, the sewing machine with interruptions 13 and slots 14; 15 to be provided. Under certain circumstances, a one-sided interruption 13 and / or a slot 14 is sufficient; 15 to achieve the purpose to be achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Inorganic Insulating Materials (AREA)
  • Massaging Devices (AREA)

Abstract

1. Sewing machine comprising a needle plate attached to needle plate receiving ledges of a machine bed for guiding and transporting the material to be sewn, and a pressure bar resiliently mounted above the needle plate, and a feeder disposed therebeneath, said feeder temporarily engaging through slots formed in the needle plate and being elevated out of the plane of the latter so as to transport the material to be sewn, characterized in - that the portion of the needle plate (7) which is opposite to the pressure bar (4) is freely disposed on three sides thereof in a recess (9) of the machine bed (6), and - that the needle plate (7) is secured laterally of the pressure bar (4) to the machine bed (6) by means of its fourth side which faces the machine.

Description

Die Erfindung bezieht sich auf eine Nähmaschine, welohe für die Führung und den Transport des Nähgutes mit einer an einer Stichplattenaufnahmeleiste eines Maschinenbettes befestigten Stichplatte, einem über der Stichplatte angeordneten gefederten Stoffdrücker und mit einem darunter befindlichen Stoffschieber ausgestattet ist, der zeitweilig Schlitze der Stichplatte durchgreift und sich aus der Ebene der letzteren erhebt, um das Nähgut zu transportieren.The invention relates to a sewing machine, which is equipped for guiding and transporting the sewing material with a stitch plate attached to a stitch plate receiving strip of a machine bed, a spring-loaded fabric presser arranged above the stitch plate and with a fabric slide located underneath, which temporarily passes through slots in the stitch plate and rises from the level of the latter in order to transport the sewing material.

Es ist eine Nähmaschine gemäß dem Oberbegriff des Patentanspruches 1 bekannt (DE-OS 27 19 539), die mit einer fest und mehrseitig im Maschinenbett aufliegenden Stichplatte versehen ist, bei der der Stoffdrücker doppelt gefedert wurde, Damit wird bezweckt, daß der Stoffdrücker in jeder Nähsituation immer exakt der Bewegung des Stoffschiebers folgt, sofern der letztere sich aus der Ebene der Stichplatte erhoben hat. Der Stoffdrücker . soll rasch auf den Stoffschieber reagieren und sich nicht vom Nähgut abheben, solange genäht wird. Die dafür vorgesehenen Mittel sind im wesentlichen zwei unterschiedlich starke Federn, die dem Stoffdrücker eine Anlage mit niedrigem Beharrungsvermögen am Nähgut geben, wenn sich der Drücker an einem ebenen Teil des Nähgutes befindet, und die den Stoffdrücker fester auf das Nähgut pressen, sofern ein Saum oder ein anderes Hindernis zu überwinden sind.There is a sewing machine according to the preamble of claim 1 known (DE-OS 27 19 539), which is provided with a fixed and multi-sided in the machine bed needle plate, in which the presser has been double-sprung, so that the presser in each The sewing situation always follows the movement of the fabric pusher, provided the latter has risen from the plane of the needle plate. The presser. should react quickly to the fabric pusher and not stand out from the sewing material while sewing. The means provided for this are essentially two springs of different strengths, which give the presser a system with a low degree of persistence on the material to be sewn when the presser is on a flat part of the material, and which press the presser more firmly onto the material if a hem or another obstacle to be overcome.

Wird mit hohen Nähgeschwindigkeiten über 3000 Stiche pro Minute gearbeitet, so liegt der Stoffdrücker der bezeichneten Maschine allerdings trotz der getroffenen technischen Maßnahmen nicht ständig am Nähgut an, sondern hebt sich zeitweilig von demselben ab. Diese Erscheinung führt zu unerwünschten Stichlängenveränderungen und Nahtverkürzungen. Außerdem treten bei steigender Nähgeschwindigkeit zunehmend Geräuschbildung und Vibration der gesamten Nähmaschine auf.If you work with high sewing speeds of over 3000 stitches per minute, the presser of the designated machine is not constantly in contact with the sewing material, despite the technical measures taken, but temporarily stands out. This phenomenon leads to undesirable changes in stitch length and shortening of the seam. In addition, stei sewing speed increasingly noise and vibration of the entire sewing machine.

Der Nähvorgang ist bekanntlich mit starken Schwingungen verbunden. Man unterscheidet dabei zwei Schwingungsarten. In der Phase des Transportes des Nähgutes treten erzwungene Schwingungen des Stoffdrückers mit dem Stoffschieber auf. Zur Zeit der Ruhe des Nähgutes schwingt der Stoffdrücker frei zusammen mit der Stichplatte, wo- . bei die Vibration des Bettes der Nähmaschine ebenfalls Einfluß ausübt.As is known, the sewing process is associated with strong vibrations. There are two types of vibration. In the phase of the transport of the sewing material, forced vibrations of the fabric presser with the fabric pusher occur. When the material is at rest, the fabric presser swings freely together with the stitch plate, where-. also influences the vibration of the bed of the sewing machine.

Die Erfindung geht nun von der neuen Erkenntnis aus, daß die an sich bekannten Eigenschwingungen der Stichplatte, die während des Nähvorganges insbesondere in dem Schwingungssystem Stoffdrücker/Stichplatte entstehen, eine der Ursachen für das Abheben des Stoffdrückers vom Nähgut bilden.The invention is now based on the new finding that the known natural vibrations of the needle plate, which arise during the sewing process, in particular in the fabric presser / needle plate vibration system, form one of the causes for the presser lifting off the material to be sewn.

Eine zweite Grundlage für die vorliegende Erfindung besteht in der weiteren Erkenntnis, daß die Zeit der Ruhe des Nähgutes an schnellaufenden Nähmaschinen nicht zum genügenden Abklingen der freien Schwingungen des Stoffdrückers und der Stichplatte ausreicht.A second basis for the present invention consists in the further realization that the time at which the sewing material is at rest on high-speed sewing machines is not sufficient for the free vibrations of the presser and the throat plate to decay sufficiently.

Folglich überlagern und verstärken sich die erzwungenen und die freien Schwingungen. Der wegen des zwischen dem Stoffdrücker und der Stichplatte geführten Nähgutes vorhandene Dämpfungseffekt vermag die Verstärkung der Überlagerungsschwingungen nicht aufzuhalten.As a result, the forced and free vibrations are superimposed and amplified. The damping effect existing between the presser and the throat plate cannot dampen the amplification of the superimposed vibrations.

Die Schwingungen nehmen infolge der hohen Nähgeschwindigkeit schließlich beträchtlich zu und begünstigen das Abheben des Stoffdrückers vom Nähgut mit den geschilderten nachteiligen Folgen.The vibrations ultimately increase considerably as a result of the high sewing speed and promote the lifting of the fabric presser from the material to be sewn, with the described disadvantageous consequences.

Der Mangel des Abhebens des Stoffdrückers soll eingeschränkt werden.The lack of lifting the presser should be limited.

Zu diesem Zweck ist das Schwingungssystem Stoffdrücker/ Stichplatte derart zu verbessern, daß keine störenden Überlagerungen von dessen freien-Schwingungen mit den erzwungenen Schwingungen des Systems Stoffdrücker/Stoffschieber eintreten.For this purpose, the presser / throat plate vibration system is to be improved in such a way that there are no disturbing overlaps of its free vibrations with the forced vibrations of the presser / pusher system.

Die in den Patentansprüchen gekennzeichnete Erfindung stellt sich die Aufgabe, eine Nähmaschine zu schaffen, bei der das Abheben des Stoffdrückers während des Nähvorganges durch eine verstärkte Unterdrückung der freien Schwingungen des Systems Stoffdrücker/Stichplatte aufgrund einer das Eigenschwingungsverhalten der Stichplatte ändernden Verminderung der Federsteife der letzteren weiter behindert wird.The invention characterized in the claims sets itself the task of creating a sewing machine in which the lifting of the presser during the sewing process is further suppressed by the free oscillations of the system presser / throat plate due to a reduction in the natural vibration behavior of the throat plate, reducing the spring stiffness of the latter is hindered.

Gelöst wird die Aufgabe der Erfindung, indem der dem Stoffdrücker gegenüberliegende Teil der Stichplatte frei in einer Ausnehmung des Maschinenbettes angeordnet ist. Dabei besteht die Möglichkeit der Unterbrechung der Stichplattenaufnahme oder der Ausstattung der Stiohplatte mit annähernd quer zur Nährichtung vorgesehenen Einschnitten.The object of the invention is achieved in that the part of the needle plate opposite the presser is freely arranged in a recess in the machine bed. It is possible to interrupt the throat plate holder or to equip the Stiohplatte with incisions approximately transverse to the sewing direction.

Da die Stichplatte im Stoffdrückerbereich frei angeordnet wurde, was besonders vorteilhaft mit der Ausführungsart nach Patentanspruch 2 geschieht, schwingt das System Stoffdrücker/Stichplatte eher aus als das der Fall ist, wenn die Stichplatte wie bisher ohne spezielle Vorkehrungen direkt auf einer ununterbrochenen Stichplattenaufnahmeleiste liegt. Die Anordnung und Befestigung der Stichplatte ist so vorgesehen, daß die freien Schwingungen des Systems Stoffdrücker/Stichplatte infolge Verminderung der Federsteife der Stichplatte jeweils ausreichend abgeklungen sind, bevor der Stoffschieber das Nähgut erneut transportiert und den Stoffdrücker in erzwungene Schwingungen versetzt. Eine störende Überlagerung der-genannten Schwingungsarten tritt also nicht ein.Since the throat plate was freely arranged in the presser area, which is particularly advantageous with the embodiment according to claim 2, the presser / throat plate system swings out sooner than is the case if the throat plate lies directly on an uninterrupted throat plate receiving bar, as before, without special precautions. The arrangement and attachment of the throat plate is provided so that the free Vibrations of the presser / throat plate system have sufficiently subsided due to the reduction in the spring stiffness of the throat plate before the cloth pusher transports the material again and sets the presser into forced vibrations. A disturbing superposition of the above-mentioned types of vibration does not occur.

Aufgrund dessen kann die Erscheinung des Abhebens des Stoffdrückers vom Nähgut während des Nähvorganges in einem beachtlichen Umfang vermieden werden.Because of this, the appearance of the presser lifting off the material to be sewn during the sewing process can be avoided to a considerable extent.

Die Erfindung wird anhand von Ausführungsbeispielen näher erläutert.The invention is explained in more detail using exemplary embodiments.

Die Zeichnung zeigt in:

  • Fig. 1: einen Querschnitt durch die Nähstelle einer Nähmaschine,
  • Fig. 2: eine perspektivische Ansicht einer Aufnahme für eine Stichplatte und eine Schieberplatte und
  • Fig. 3: eine Draufsicht auf eine Stichplatte und eine Schieberplatte.
The drawing shows in:
  • 1 shows a cross section through the sewing point of a sewing machine,
  • 2: a perspective view of a receptacle for a needle plate and a slide plate and
  • Fig. 3: a plan view of a needle plate and a slide plate.

Gemäß Fig. 1 umfaßt die Nähmaschine eine Nadelstange 1 mit einer eingespannten Nähnadel 2, die in üblicher Weise vertikal bewegbar ist. Weiter gehören ein unter dem Druck einer Feder 3 stehender Stoffdrücker 4 und ein Stoffschieber 5 zu den Nähwerkzeugen. Zwischen dem Stoffdrücker 5 und einer an einem Maschinenbett 6 befestigten Stichplatte 7 erhält das Nähgut 8 seine Führung. Die Stichplatte 7 ist mit Schlitzen 7 a ausgestattet, die der Stoffschieber 5 zeitweilig durchgreift, um sich aus der Ebene der Stichplatte 7 zu erheben und das Nähgut 8 zu transportieren. Der Stoffschieber 5 und die Stichplatte 7 sind in einer Ausnehmung 9 des Maschinenbettes 6 untergebracht, die teilweise von einer Stichplattenaufnahmeleiste 6 a begrenzt wird und außerdem noch eine nicht gezeigte Fadengreifervorrichtung aufnimmt. Für die hierin dargestellte Erfindung kann eine Steppstich- oder eine Kettenstichnähmaschine zugrunde liegen. Die Stichplatte 7 wurde derart befestigt, daß ihr Eigenschwingungsverhalten zu einer Reduzierung der freien Schwingungen des Systems Stoffdrücker 5/ Stichplatte 7 führt, indem durch die gewählte Anordnung eine geringere Federsteife der Stichplatte 7 vorliegt.1, the sewing machine comprises a needle bar 1 with a clamped sewing needle 2, which can be moved vertically in the usual way. Furthermore, a presser 4 under the pressure of a spring 3 and a cloth pusher 5 belong to the sewing tools. The material 8 receives its guidance between the presser 5 and a needle plate 7 fastened to a machine bed 6. The needle plate 7 is out with slots 7 a which the fabric pusher 5 passes through temporarily to rise from the plane of the needle plate 7 and to transport the sewing material 8. The slider 5 and the needle plate 7 are housed in a recess 9 of the machine bed 6, which is partially limited by a needle plate receiving bar 6 a and also receives a thread gripping device, not shown. A lockstitch or chain stitch sewing machine can form the basis for the invention shown here. The needle plate 7 was fastened in such a way that its natural vibration behavior leads to a reduction in the free vibrations of the presser 5 / needle plate 7 system in that the selected arrangement provides less spring stiffness for the needle plate 7.

Fig. 2 stellt eine solche Aufnahme für eine Stichplatte 7 dar, bei der die Stichplattenaufnahmeleiste 6 a auf jeder Seite der Stichplatte 7 zwischen Befestigungsstel- . len 10; 11 und einer Schieberplatte 12 mit einer Unterbrechung 13 versehen ist. Somit erhält der dem Stoffdrücker 4 gegenüberliegende Teil der Stichplatte 7 eine freie Anordnung in der Ausnehmung 9 des Maschinenbettes 6, die gegenüber der herkömmlichen festen Lage der Stichplatte einer Verminderung der Federsteife der Stichplatte 7 entspricht. Als Befestigungsart kommen vorzugsweise Verschraubungen in Betracht.Fig. 2 shows such a receptacle for a needle plate 7, in which the needle plate receiving bar 6 a on each side of the needle plate 7 between the fastening point. len 10; 11 and a slide plate 12 is provided with an interruption 13. Thus, the part of the needle plate 7 opposite the presser 4 receives a free arrangement in the recess 9 of the machine bed 6, which corresponds to a reduction in the spring stiffness of the needle plate 7 compared to the conventional fixed position of the needle plate. Screws are preferred as the type of fastening.

In Fig. 3 wurde die Stichplatte 7 mit Einschnitten 14; 15 ausgestattet, welche annähernd quer zur Nährichtung in dem dem Stoffdrücker 4 gegenüber liegenden Teil der Stichplatte 7 eingearbeitet sind. Weiter geht es bei dieser Lösungsmöglichkeit auch an, zusätzliche Unterbrechungen 13 der Stichplattenaufnahmeleiste 6 a vorzunehmen.In Fig. 3 the needle plate 7 with incisions 14; 15 equipped, which are incorporated approximately transversely to the sewing direction in the part of the needle plate 7 opposite the presser 4. It is also possible with this solution option to make additional interruptions 13 of the throat plate receiving bar 6 a.

Wenn nun der Stoffschieber 5 während des Nähvorganges die Schlitze 7 a der Stichplatte 7 durchgreift, dabei gegen das Nähgut 8 drückt, um dasselbe zu transportieren, versetzt der Stoffschieber 5 den am Nähgut 8 anliegenden Stoffdrücker 4 in erzwungene Schwingungen. Der Stoffdrücker 4 wird dabei von der Stichplatte 7 abgehoben. Die Nähwerkzeuge Stoffdrücker 4 und Stoffschieber 5 schwingen in dieser Phase gemeinsam als System. Hat der Stoffschieber 5 den Transport des Nähgutes 8 beendet und wieder eine Stellung unterhalb der Ebene der Stichplatte 7 eingenommen, so trifft der Stoffdrücker 4 erneut auf die Stichplatte 7, wobei sich das Nähgut 8 dazwischen befindet. Es beginnen in dieser Phase freie Schwingungen des Systems Stoffdrücker 4/ Stichplatte 7, welche mit den Mitteln der beschriebenen Erfindung derart unterdrückbar sind, daß die Schwingungen genügend abgeklungen sind, bevor das System Stoffdrücker 4/Stoffschieber 5 abermals erzwungen zu schwingen anfängt. Somit entsteht keine störende Überlagerung von Schwingungen beider Systeme.If now the cloth pusher 5 passes through the slots 7 a of the needle plate 7 during the sewing process, thereby pressing against the sewing material 8 in order to transport the same, the cloth pusher 5 sets the presser 4 resting on the sewing material 8 in forced vibrations. The presser 4 is lifted off the throat plate 7. The sewing tools fabric presser 4 and fabric pusher 5 swing together as a system in this phase. When the cloth pusher 5 has finished transporting the sewing material 8 and has returned to a position below the level of the stitch plate 7, the cloth presser 4 hits the stitch plate 7 again, with the sewing material 8 in between. In this phase, free vibrations of the system presser 4 / needle plate 7 begin, which can be suppressed with the means of the described invention in such a way that the vibrations have subsided sufficiently before the system presser 4 / slider 5 begins to vibrate again. Thus there is no disruptive superimposition of vibrations of both systems.

Das Vermeiden einer störenden Schwingungsüberlagerung schafft weiterhin einen definierten Ausgangszustand des Systems Stoffdrücker 4/Stoffschieber 5, der es gestattet, die notwendige Anlegekraft des Stoffdrückers 4 an der Stichplatte 7 und am Stoffschieber 5 wirkungsvoller einstellen zu können als bisher.The avoidance of a disturbing vibration superimposition creates a defined initial state of the system presser 4 / slide 5, which allows the necessary force of the presser 4 on the needle plate 7 and on the slide 5 to be set more effectively than before.

Form und Abmessung der einseitig freien Stichplatte 7 richten sich natürlich nach den auftretenden bzw. gewünschten Schwingungsverhältnissen. Beispielsweise kann man die beiderseitige Unterbrechung 13 der Stichplattenaufnahmeleiste 6 a oder die Schlitze 14; 15 der Stichplatte 7 jeweils verschieden lang ausführen. Es ist auch angängig, die Nähmaschine sowohl mit Unterbrechungen 13 als auch mit Schlitzen 14; 15 zu versehen. Unter Umständen genügt auch eine einseitige Unterbrechung 13 und/ oder ein Schlitz 14; 15, um den zu erreichenden Zweck zu verwirklichen.The shape and dimensions of the one-sided free needle plate 7 naturally depend on the occurring or desired vibration conditions. For example, the interruption 13 of the needle plate receiving bar 6 a or the slots 14; 15 of the throat plate 7 each have different lengths. It is also viable, the sewing machine with interruptions 13 and slots 14; 15 to be provided. Under certain circumstances, a one-sided interruption 13 and / or a slot 14 is sufficient; 15 to achieve the purpose to be achieved.

Claims (3)

1. Nähmaschine, welche für die Führung und den Transport des Nähgutes mit einer an einer Stichplattenaufnahmeleiste eines Maschinenbettes befestigten Stichplatte, einem über der Stichplatte angeordneten gefederten Stoffdrücker und mit einem darunter befindlichen Stoffschieber ausgestattet ist, der zeitweilig Schlitze der Stichplatte durchgreift und sich aus der Ebene der letzteren erhebt, um das Nähgut zu transportieren, gekennzeichnet dadurch, daß der dem Stoffdrücker (4) gegenüberliegende Teil der Stichplatte (7) frei in einer Ausnehmung (9) des Maschinenbettes (6) angeordnet ist.1.Sewing machine, which is equipped for guiding and transporting the material with a needle plate attached to a needle plate receiving bar of a machine bed, a spring-loaded fabric presser arranged above the needle plate and with a fabric pusher underneath, which temporarily reaches through slots in the needle plate and moves out of the plane the latter raises in order to transport the sewing material, characterized in that the part of the needle plate (7) opposite the presser (4) is freely arranged in a recess (9) in the machine bed (6). 2. Nähmaschine nach Anspruch 1, gekennzeichnet dadurch, daß die Stichplattenaufnahmeleiste (6 a) auf jeder Seite der.Stichplatte (7) zwischen Befestigungsstellen (10; 11) und einer Schieberplatte (12) mit einer Unterbrechung (13) versehen ist.2. Sewing machine according to claim 1, characterized in that the needle plate receiving bar (6 a) on each side of the needle plate (7) between attachment points (10; 11) and a slide plate (12) is provided with an interruption (13). 3. Mähmaschine nach Anspruch 1, gekennzeichnet dadurch, daß in dem dem Stoffdrücker (4) gegenüber liegenden Teil der Stichplatte (7) annähernd quer zur Nährichtung zwei Einschnitte (14; 15) eingearbeitet sind.3. Mower according to claim 1, characterized in that two incisions (14; 15) are incorporated in the part of the throat plate (7) lying opposite the presser (4) approximately transversely to the sewing direction.
EP81100441A 1980-10-03 1981-01-22 Sewing machine Expired EP0049312B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100441T ATE10654T1 (en) 1980-10-03 1981-01-22 SEWING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD224305 1980-10-03
DD80224305A DD153401A1 (en) 1980-10-03 1980-10-03 SEWING MACHINE

Publications (2)

Publication Number Publication Date
EP0049312A1 true EP0049312A1 (en) 1982-04-14
EP0049312B1 EP0049312B1 (en) 1984-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100441A Expired EP0049312B1 (en) 1980-10-03 1981-01-22 Sewing machine

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EP (1) EP0049312B1 (en)
AT (1) ATE10654T1 (en)
DD (1) DD153401A1 (en)
DE (1) DE3167520D1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
RU2673886C1 (en) * 2015-06-30 2018-12-03 Дзе Проктер Энд Гэмбл Компани Cleaning method of polluted polymers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500731A (en) * 1945-09-25 1950-03-14 Singer Mfg Co Throat plate for sewing machines
DE885194C (en) * 1950-09-14 1953-08-03 Union Special Machine Co Sewing machine
US2703543A (en) * 1953-02-06 1955-03-08 Emma D Needs Sewing machine construction
GB985441A (en) * 1962-04-12 1965-03-10 Rimoldi C Spa Virginio Overlock sewing machine provided with means for attaching elastics and the like to fabric edges
FR90496E (en) * 1966-07-27 1967-12-22 Rhodiaceta Method and apparatus for sewing flat elements such as in particular fabrics or sheets
US3373709A (en) * 1965-12-23 1968-03-19 Singer Co Sewing machine throat plate locating and securing means

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500731A (en) * 1945-09-25 1950-03-14 Singer Mfg Co Throat plate for sewing machines
DE885194C (en) * 1950-09-14 1953-08-03 Union Special Machine Co Sewing machine
US2703543A (en) * 1953-02-06 1955-03-08 Emma D Needs Sewing machine construction
GB985441A (en) * 1962-04-12 1965-03-10 Rimoldi C Spa Virginio Overlock sewing machine provided with means for attaching elastics and the like to fabric edges
US3373709A (en) * 1965-12-23 1968-03-19 Singer Co Sewing machine throat plate locating and securing means
FR90496E (en) * 1966-07-27 1967-12-22 Rhodiaceta Method and apparatus for sewing flat elements such as in particular fabrics or sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2673886C1 (en) * 2015-06-30 2018-12-03 Дзе Проктер Энд Гэмбл Компани Cleaning method of polluted polymers

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DE3167520D1 (en) 1985-01-17
EP0049312B1 (en) 1984-12-05
DD153401A1 (en) 1982-01-06
ATE10654T1 (en) 1984-12-15

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