EP1882767B1 - Device for monitoring the needle thread - Google Patents

Device for monitoring the needle thread Download PDF

Info

Publication number
EP1882767B1
EP1882767B1 EP07405114.5A EP07405114A EP1882767B1 EP 1882767 B1 EP1882767 B1 EP 1882767B1 EP 07405114 A EP07405114 A EP 07405114A EP 1882767 B1 EP1882767 B1 EP 1882767B1
Authority
EP
European Patent Office
Prior art keywords
thread
sensor
monitoring
switching element
regulator spring
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.)
Not-in-force
Application number
EP07405114.5A
Other languages
German (de)
French (fr)
Other versions
EP1882767A1 (en
Inventor
Gérard DURVILLE
Niklaus Wacker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BERNINA International AG
Original Assignee
BERNINA International AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BERNINA International AG filed Critical BERNINA International AG
Publication of EP1882767A1 publication Critical patent/EP1882767A1/en
Application granted granted Critical
Publication of EP1882767B1 publication Critical patent/EP1882767B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B51/00—Applications of needle-thread guards; Thread-break detectors
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B47/00—Needle-thread tensioning devices; Applications of tensometers
    • D05B47/04—Automatically-controlled tensioning devices

Definitions

  • the invention relates to a device for monitoring the upper thread according to the preamble of patent claim 1.
  • Devices of this type are known and serve to monitor thread breakage during sewing. You determine whether the upper thread has been threaded correctly in the sewing machine, especially with automatic threading devices. From the DDR 83897 a device for monitoring the upper thread is known, in which the extending from the thread tensioning device to the thread lever upper thread is deflected on a regulator spring. With the regulator spring a switching flag is connected, which slides at thread tension changes through a light barrier and at an undervoltage, eg caused by Thread breakage, a signal triggers. In this known device, there is only the possibility in the detection of a thread break or - to a limited extent - determine excessive thread tension change. Further detailed information regarding the functions of the sewing machine are not detectable.
  • An object of the present invention is therefore to provide a device for the general monitoring of the upper thread, with which Fadensbonds- and thread movement changes in both the negative and positive sense can be detected and can give conclusions about the functions of various elements of the sewing machine.
  • the device according to the invention it is possible to detect exact values about yarn tension changes as well as yarn movement changes in both directions and conclusions on the setting of the yarn tensioning device, on sewing defects such as yarn balls, missing stitches, failed stitching, etc., but also through the evaluation of the results during the sewing operation to draw on the influence of fabric thickness, stitch length, thread consumption changes per stitch and thread quality. Furthermore, conclusions about the function of the thread lever movement, the fabric thickness, stitch length and thread quality can also be obtained. A service mechanic can also check factory settings.
  • Reference numeral 1 denotes the outline of a household sewing machine. On the sewing machine 1, only the essential parts for understanding the invention are shown.
  • an upper thread bobbin 5 is rotatably mounted on a spool 7.
  • the upper thread 9 leads from the upper thread bobbin 5 directly or indirectly to a thread tensioning device 11 of conventional design, for example consisting of two compressible by an axially acting spring discs 13, between which the upper thread 9 is passed therethrough. From there, the thread 9 passes into a monitoring device, briefly device 15 for monitoring the upper thread 9. Die Device 15, which is the subject of the invention will be described with reference to FIG. 2 , which is an enlargement of the area A in FIG. 1 represents, explained in more detail. Of the device 15, the thread 9 passes further to the thread lever 17 and of this, suitably deflected, to the eye 19 of the needle 21st
  • a regulator spring 25 on one side rotatably held comprises a helically wound section 27 and a tangentially projecting leg 29 from the section 27.
  • the free designed as a thread deflection end 31 of the leg 29 of the regulator spring 25 is preferably guided laterally between a guide device 33.
  • the guide device 33 may comprise two parallel plates or wires 35, which ensure the lateral inlet and outlet of the upper thread 9.
  • the helical portion 27 of the regulator spring 25 wraps around a stub shaft 37, on which a switching lug 39 is pivotally mounted in the form of a circular segment.
  • the switching lug 39 is fixedly connected to the leg 29 of the regulator spring 25 and follows its movements in Tadenschreibs- and / or thread movement changes.
  • the thread tension and Thread movement changes can be caused by changing the thread consumption per stitch, for example.
  • On the periphery of the switching lug 39 are light / dark or black / white areas (not shown) and / or a meander-like contour having projections 41 or other detectable areas arranged. These regions / projections 41 are formed on a cylinder shell segment 43 projecting axially out of the plane of the switching lug 39.
  • the cylinder segment 43 passes through a sensor 45 during a pivoting movement of the switching lug 39, in which two or more sensor regions a, b, c arranged in series are inserted.
  • sensors or sensor areas photocells, proximity switches or the like may be used, with which the presence of the switching flag 39, the current position or the instantaneous pivot angle and the direction of movement and / or the speed of movement is accurately detected.
  • the rotational speed and whose rotation angle can be detected.
  • sensor regions arranged in parallel can also be provided if the light / dark regions 41 are arranged radially offset on the switching lug 39 (not shown).

Landscapes

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

Description

Gegenstand der Erfindung ist eine Vorrichtung zur Überwachung des Oberfadens gemäss Oberbegriff des Patentanspruchs 1.The invention relates to a device for monitoring the upper thread according to the preamble of patent claim 1.

Vorrichtungen dieser Gattung sind bekannt und dienen der Überwachung von Fadenbruch beim Nähen. Sie stellen fest, ob der Oberfaden korrekt in der Nähmaschine eingefädelt worden ist, insbesondere bei automatischen Einfädelvorrichtungen.
Aus der DDR-Schrift 83897 ist ein Vorrichtung zur Überwachung des Oberfadens bekannt, bei welcher der von der Fadenspannvorrichtung zum Fadenhebel verlaufende Oberfaden an einer Regulatorfeder umgelenkt wird. Mit der Regulatorfeder ist eine Schaltfahne verbunden, welche bei Fadenspannungsänderungen durch eine Lichtschranke gleitet und bei einer Unterspannung, z.B. hervorgerufen durch Fadenbruch, ein Signal auslöst. Bei dieser bekannten Vorrichtung besteht bei der Detektion einzig die Möglichkeit einen Fadenbruch oder - in beschränktem Umfang - übermässige Fadenspannungsänderung festzustellen. Weitere detaillierte Angaben bezüglich der Funktionen der Nähmaschine sind nicht erfassbar.Devices of this type are known and serve to monitor thread breakage during sewing. You determine whether the upper thread has been threaded correctly in the sewing machine, especially with automatic threading devices.
From the DDR 83897 a device for monitoring the upper thread is known, in which the extending from the thread tensioning device to the thread lever upper thread is deflected on a regulator spring. With the regulator spring a switching flag is connected, which slides at thread tension changes through a light barrier and at an undervoltage, eg caused by Thread breakage, a signal triggers. In this known device, there is only the possibility in the detection of a thread break or - to a limited extent - determine excessive thread tension change. Further detailed information regarding the functions of the sewing machine are not detectable.

Eine Aufgabe der vorliegenden Erfindung besteht nun darin, eine Vorrichtung zur generellen Überwachung des Oberfadens zu schaffen, mit welcher Fadensspannungs- als auch Fadenbewegungsänderungen sowohl im negativen als auch im positiven Sinne erfassbar sind und Rückschlüsse auf die Funktionen verschiedener Elemente der Nähmaschine geben können.An object of the present invention is therefore to provide a device for the general monitoring of the upper thread, with which Fadensspannungs- and thread movement changes in both the negative and positive sense can be detected and can give conclusions about the functions of various elements of the sewing machine.

Gelöst wird diese Aufgabe durch eine Vorrichtung gemäss den Merkmalen des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen umschrieben.This object is achieved by a device according to the features of claim 1. Advantageous embodiments of the invention are described in the dependent claims.

Es gelingt mit der erfindungsgemässen Vorrichtung exakte Werte über Fadensspannungs- als auch Fadenbewegungsänderungen in beiden Richtungen zu erfassen und durch die Auswertung der Ergebnisse während des Nähbetriebs Rückschlüsse auf die Einstellung der Fadenspannungsvorrichtung, auf Nähfehler wie Fadenknäuel, Fehlstiche, fehlgeschlagene Stichbildung etc., aber auch auf den Einfluss der Stoffdicke, Stichlänge, Fadenverbrauchsänderungen pro Stich und Fadenqualität zu ziehen. Weiter können auch Rückschlüsse auf die Funktion der Fadenhebelbewegung, auf die Stoffdicke, Stichlänge und Fadenqualität erlangt werden. Ein Servicemechaniker kann zudem Werkseinstellungen überprüfen.By means of the device according to the invention, it is possible to detect exact values about yarn tension changes as well as yarn movement changes in both directions and conclusions on the setting of the yarn tensioning device, on sewing defects such as yarn balls, missing stitches, failed stitching, etc., but also through the evaluation of the results during the sewing operation to draw on the influence of fabric thickness, stitch length, thread consumption changes per stitch and thread quality. Furthermore, conclusions about the function of the thread lever movement, the fabric thickness, stitch length and thread quality can also be obtained. A service mechanic can also check factory settings.

Anhand eines illustrierten Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen:

Figur 1
eine schematische Ansicht eines Oberarms einer Nähmaschine,
Figur 2
eine vergrösserte perspektivische Darstellung des Ausschnittes A in Figur 1.
Reference to an illustrated embodiment, the invention is explained in detail. Show it:
FIG. 1
a schematic view of an upper arm of a sewing machine,
FIG. 2
an enlarged perspective view of the section A in FIG. 1 ,

Mit Bezugszeichen 1 ist der Umriss einer Haushalt-Nähmaschine bezeichnet. An der Nähmaschine 1 sind nur die für das Verständnis der Erfindung wesentlichen Teile dargestellt. Im Oberarm 3 ist eine Oberfadenspule 5 drehbar auf einem Spulendorn 7 gelagert. Der Oberfaden 9 führt von der Oberfadenspule 5 direkt oder indirekt auf eine Fadenspannungsvorrichtung 11 herkömmlicher Bauart, beispielsweise bestehend aus zwei durch eine axial wirkende Feder zusammenpressbare Scheiben 13, zwischen denen der Oberfaden 9 hindurch geführt wird. Von dort gelangt der Faden 9 in eine Überwachungsvorrichtung, kurz Vorrichtung 15 zur Überwachung des Oberfadens 9. Die Vorrichtung 15, welche Gegenstand der Erfindung ist, wird anhand der Figur 2, welche eine Vergrösserung des Bereichs A in Figur 1 darstellt, näher erläutert.
Von der Vorrichtung 15 gelangt der Faden 9 weiter auf den Fadenhebel 17 und von diesem, geeignet umgelenkt, zum Öhr 19 der Nadel 21.Reference numeral 1 denotes the outline of a household sewing machine. On the sewing machine 1, only the essential parts for understanding the invention are shown. In the upper arm 3, an upper thread bobbin 5 is rotatably mounted on a spool 7. The upper thread 9 leads from the upper thread bobbin 5 directly or indirectly to a thread tensioning device 11 of conventional design, for example consisting of two compressible by an axially acting spring discs 13, between which the upper thread 9 is passed therethrough. From there, the thread 9 passes into a monitoring device, briefly device 15 for monitoring the upper thread 9. Die Device 15, which is the subject of the invention will be described with reference to FIG. 2 , which is an enlargement of the area A in FIG. 1 represents, explained in more detail.
Of the device 15, the thread 9 passes further to the thread lever 17 and of this, suitably deflected, to the eye 19 of the needle 21st

In der vergrösserten Darstellung der Vorrichtung 15 für den Oberfaden 9 ist an einer Befestigungsplatte 23, welche Teil des Gehäuses der Nähmaschine 1 sein kann, eine Regulatorfeder 25 einseitig drehfest gehalten. Die Regulatorfeder 25 umfasst einen schraubenlinienförmig gewundenen Abschnitt 27 sowie einen vom Abschnitt 27 tangential abstehenden Schenkel 29. Das freie als Fadenumlenkung ausgebildete Ende 31 des Schenkels 29 der Regulatorfeder 25 ist vorzugsweise zwischen einer Führungsvorrichtung 33 seitlich geführt. Die Führungsvorrichtung 33 kann zwei parallel verlaufende Platten oder Drähte 35 umfassen, welche den seitlichen Ein- und Auslauf des Oberfadens 9 gewährleisten.
Der schraubenlinienförmige Abschnitt 27 der Regulatorfeder 25 umschlingt einen Wellenstummel 37, auf welchem eine Schaltfahne 39 in Gestalt eines Kreissegmentes schwenkbar gelagert ist. Die Schaltfahne 39 ist mit dem Schenkel 29 der Regulatorfeder 25 fest verbunden und folgt dessen Bewegungen bei Fadenspannungs- und/oder Fadenbewegungsänderungen. Die Fadenspannungs- und Fadenbewegungsänderungen können z.B. durch eine Änderung des Fadenverbrauchs pro Stich verursacht werden. Auf der Peripherie der Schaltfahne 39 sind Hell-/Dunkel oder Schwarz-/Weissbereiche (nicht dargestellt) und/oder eine mäanderartige Kontur aufweisende Vorsprünge 41 oder andere detektierbare Bereiche angeordnet. Diese Bereiche/Vorsprünge 41 sind auf einem aus der Ebene der Schaltfahne 39 axial herausragenden Zylindermantelsegment 43 ausgebildet. Das Zylindersegment 43 durchfährt bei einer Schwenkbewegung der Schaltfahne 39 einen Sensor 45, in welchem zwei oder mehr in Serie angeordnete Sensorbereiche a, b, c eingesetzt sind. Als Sensoren bzw. Sensorbereiche können Lichtschranken, Näherungsschalter oder dergleichen eingesetzt sein, mit denen die Anwesenheit der Schaltfahne 39, deren momentane Lage bzw. deren momentaner Schwenkwinkel sowie deren Bewegungsrichtung und/oder die Bewegungsgeschwindigkeit exakt detektierbar ist.In the enlarged view of the device 15 for the upper thread 9 is on a mounting plate 23, which may be part of the housing of the sewing machine 1, a regulator spring 25 on one side rotatably held. The regulator spring 25 comprises a helically wound section 27 and a tangentially projecting leg 29 from the section 27. The free designed as a thread deflection end 31 of the leg 29 of the regulator spring 25 is preferably guided laterally between a guide device 33. The guide device 33 may comprise two parallel plates or wires 35, which ensure the lateral inlet and outlet of the upper thread 9.
The helical portion 27 of the regulator spring 25 wraps around a stub shaft 37, on which a switching lug 39 is pivotally mounted in the form of a circular segment. The switching lug 39 is fixedly connected to the leg 29 of the regulator spring 25 and follows its movements in Tadenspannungs- and / or thread movement changes. The thread tension and Thread movement changes can be caused by changing the thread consumption per stitch, for example. On the periphery of the switching lug 39 are light / dark or black / white areas (not shown) and / or a meander-like contour having projections 41 or other detectable areas arranged. These regions / projections 41 are formed on a cylinder shell segment 43 projecting axially out of the plane of the switching lug 39. The cylinder segment 43 passes through a sensor 45 during a pivoting movement of the switching lug 39, in which two or more sensor regions a, b, c arranged in series are inserted. As sensors or sensor areas photocells, proximity switches or the like may be used, with which the presence of the switching flag 39, the current position or the instantaneous pivot angle and the direction of movement and / or the speed of movement is accurately detected.

Nachfolgend wird die Funktionsweise der Vorrichtung 15 erläutert. Durch Fadensspannungs- und/oder Fadenbewegungsänderungen sowie Fadenkonsumationsänderungen des Oberfadens 9, welcher durch das hakenförmige Ende 31 der Regulatorfeder 25 geführt ist, wird die Regulatorfeder 25 in Figur 2 bei Fadenspannungserhöhung im Uhrzeigersinn und bei Nachlassen der Fadenspannung im Gegenuhrzeigersinn bewegt. In Abhängigkeit des Betrages der Fadenspannungsänderungen und/oder Fadenkonsumationsänderung wird die Schaltfahne 39 mehr oder weniger oder mit unterschiedlicher Geschwindigkeit geschwenkt und es werden die Vorsprünge oder Hell-/Dunkelbereiche 41 zwischen den Elementen des Sensors 45 hindurch geführt. Durch die Aufteilung des Zylindersegments 43 der Schaltfahne 39 in Hell-/Dunkelbereiche, die auch durch Vorsprünge bzw. Einschnitte hervorgerufen werden können, und die mindestens zwei in Serie geschalteten Sensorbereiche a, b kann die Bewegungsrichtung (Drehrichtung) der Schaltfahne 39, deren Drehgeschwindigkeit und deren Drehwinkel detektiert werden. Alternativ können auch parallel angeordnete Sensorbereiche vorgesehen sein, falls die Hell-/Dunkelbereiche 41 auf der Schaltfahne 39 radial versetzt angeordnet sind (keine Abbildung). Dadurch lassen sich die gewünschten Rückschlüsse auf die Grösse der Spannungsänderungen und/oder Fadenkonsumationsänderungen im Oberfaden 9 aber auch das zeitliche Auftreten innerhalb eines einzelnen Nähzyklus/Stichbildung (Frequenz) und die Art der Änderungen in der Fadenspannung und der Fadenkonsumation erkennen und auswerten. Die erfassten Werte können dann beispielsweise für eine Korrektur (Nachjustierung) der Fadenbremse (Fadenspannungsvorrichtung 11) und weiterer Einstellparameter an der Nähmaschine 1 herangezogen werden.Hereinafter, the operation of the device 15 will be explained. By Fadensspannungs- and / or thread movement changes and Fadenkonsumationsänderungen the upper thread 9, which is guided by the hook-shaped end 31 of the regulator spring 25, the regulator spring 25 in FIG. 2 when the thread tension is increased clockwise and counterclockwise when the thread tension decreases. Depending on the amount of Thread tension changes and / or thread change of change, the switching flag 39 is pivoted more or less or at different speeds, and the projections or light / dark areas 41 are passed between the elements of the sensor 45 therethrough. By dividing the cylinder segment 43 of the switching lug 39 in light / dark areas, which can also be caused by projections or cuts, and the at least two series-connected sensor areas a, b, the direction of movement (direction of rotation) of the switching lug 39, the rotational speed and whose rotation angle can be detected. Alternatively, sensor regions arranged in parallel can also be provided if the light / dark regions 41 are arranged radially offset on the switching lug 39 (not shown). As a result, the desired conclusions about the magnitude of the voltage changes and / or changes in the thread change in the upper thread 9 as well as the temporal occurrence within a single sewing cycle / stitch formation (frequency) and the nature of the changes in the thread tension and the thread consumption can be recognized and evaluated. The detected values can then be used, for example, for a correction (readjustment) of the thread brake (thread tensioning device 11) and further setting parameters on the sewing machine 1.

Es können zusammengefasst Rückschlüsse gezogen werden beispielsweise bezüglich

  • Nähfehler (Fadenknäuel, Fehlstiche, fehlgeschlagene Stichbildung etc.)
  • Stoffdicke
  • Stichlänge
  • Fadenqualität
  • etc.
It can summarized conclusions are drawn, for example, with respect
  • Sewing error (thread ball, missing stitches, failed stitch formation, etc.)
  • material thickness
  • stitch length
  • thread quality
  • Etc.

Claims (5)

  1. A device (15) for monitoring the needle thread (9) in a sewing machine (1), comprising a thread regulator with a regulator spring (25), a switching element (39) that is operatively connected with the regulator spring (25) and is inserted between the thread lever (17) and a thread tensioning device (11), a sensor (45) for monitoring the presence / absence of the switching element (39) at the sensor (45),
    characterized in that
    the switching element (39) comprises at least two identification zones (41) and the sensor (45) comprises at least two active independent detection regions (a, b).
  2. The device according to claim 1, characterized in that the switching element (39) is able to pivot on a truncated shaft (37) and comprises a body shaped like a segment of a circle in the peripheral region of which the identification zones (41) are formed.
  3. The device according to claim 2, characterized in that the identification zones are light / dark regions, recesses and/or protrusions (41).
  4. The device according to any one of claims 1 to 3, characterized in that the sensor (45) comprises at least two light beam barriers (a, b) or proximity sensors, which are located next to each other, as detection means.
  5. The device according to claim 4, characterized in that the detection means are arranged in parallel or in series.
EP07405114.5A 2006-07-28 2007-04-11 Device for monitoring the needle thread Not-in-force EP1882767B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH12302006 2006-07-28

Publications (2)

Publication Number Publication Date
EP1882767A1 EP1882767A1 (en) 2008-01-30
EP1882767B1 true EP1882767B1 (en) 2013-07-24

Family

ID=38573069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405114.5A Not-in-force EP1882767B1 (en) 2006-07-28 2007-04-11 Device for monitoring the needle thread

Country Status (2)

Country Link
US (1) US7536963B2 (en)
EP (1) EP1882767B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8151721B2 (en) * 2009-06-07 2012-04-10 Hsien-Chang Tseng Thread tensioning device for a sewing machine
JP5064539B2 (en) * 2009-11-13 2012-10-31 木下精密工業株式会社 Stitch skipping check device for sewing device
US8448588B1 (en) 2011-08-18 2013-05-28 Leonard Samuel Lindley Force sensing device adapted for sensing thread tension in a long-arm or mid-arm sewing machine
CN104499205A (en) * 2015-01-09 2015-04-08 吴江市友达机械有限公司 Thread breaking detection device for sewing machine
JP6626715B2 (en) * 2016-01-14 2019-12-25 Juki株式会社 sewing machine
CN105671810B (en) * 2016-03-30 2018-04-20 苏州泉海机电制造有限公司 Wire rod detects thread take-up lever structure
CN106676773A (en) * 2016-12-29 2017-05-17 杰克缝纫机股份有限公司 Device and method for detecting thread tension of sewing machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE83897C (en)
DD83897A (en) *
US3425375A (en) * 1966-10-07 1969-02-04 Jacobs Machine Corp Thread control
US3785308A (en) * 1971-12-09 1974-01-15 R Brandriff Apparatus for monitoring thread tension
JPS56106690A (en) * 1980-01-29 1981-08-25 Brother Ind Ltd Automatic cotton toning device for sewing machine
US4735161A (en) * 1986-10-20 1988-04-05 Sew Simple Systems, Inc. Sewing machine thread breakage detector
DE3818663A1 (en) * 1988-06-01 1989-12-07 Pfaff Ind Masch THREAD GUARD
US5383417A (en) * 1992-10-26 1995-01-24 Norrid; Paul E. Needle thread stitch formation monitor
JP3881860B2 (en) * 2001-10-12 2007-02-14 Ｊｕｋｉ株式会社 Thread winding method
SE526807C2 (en) * 2004-03-15 2005-11-08 Vsm Group Ab Control of thread supply by sewing machine

Also Published As

Publication number Publication date
US7536963B2 (en) 2009-05-26
US20080022908A1 (en) 2008-01-31
EP1882767A1 (en) 2008-01-30

Similar Documents

Publication Publication Date Title
EP1882767B1 (en) Device for monitoring the needle thread
EP3006617B1 (en) Sensor assembly for a sewing machine
DE202009019005U1 (en) Wire spool and rebar tie machine
EP1394310A2 (en) Method for determining the underthread supply and sewing machine with monitoring of the underthread supply
DE19712869A1 (en) Steering angle sensor system with increased redundancy
DE112007003707T5 (en) Cable tester
EP1700941B1 (en) Sewing or embroidery machine
DE3800717C2 (en)
DE3014753C2 (en) Supply monitor for the bobbin thread of a sewing machine
EP1479809A1 (en) Sewing machine with a sensor for measuring the thickness of the fabric
DE2551133C2 (en) Control device for a sewing machine
DE4141207A1 (en) DEVICE FOR DETERMINING A REMAINING QUANTITY OF A SPOOL THREAD WINDED ABOUT A SPOOL CORE
DE3150869A1 (en) TIRE PRESSURE WARNING DEVICE
US5752396A (en) Thread control device for flat knitting machine
DE19543352C2 (en) Soldering system for level measurement
DE102011053824B3 (en) Yarn feeding device for feeding a thread to a textile machine
DE19523914C1 (en) Shutter shield drive belt movement detection device
CH709887B1 (en) Sewing or embroidery machine.
DE4137016A1 (en) DEVICE FOR MEASURING AND / OR REGULATING THE TENSION TENSION OF A TAPE OR WIRE-SHAPED ELECTRODE IN A SPARK-EDM MACHINE
DE102014220207B4 (en) sewing machine
EP0891286A1 (en) Proximity sensor and yarn feeder with a proximity sensor
EP2486374B1 (en) Measuring device for detecting rotation signals
EP3276087B1 (en) Angle measuring system
DE3432527A1 (en) Device for monitoring the under-thread of an embroidering, quilting or sewing machine
DE102019106283A1 (en) Device and method for monitoring the unwinding of a thread and sewing machine

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080216

AKX Designation fees paid

Designated state(s): CH DE LI SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130326

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: GACHNANG AG PATENTANWAELTE, CH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007012075

Country of ref document: DE

Effective date: 20130919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

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: 20130724

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: 20140425

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007012075

Country of ref document: DE

Effective date: 20140425

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220527

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20220421

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007012075

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20230430

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231103

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230430