EP2497852B1 - Machine à coudre et procédé destiné à coudre un début de couture à l'aide d'une telle machine à coudre - Google Patents

Machine à coudre et procédé destiné à coudre un début de couture à l'aide d'une telle machine à coudre Download PDF

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Publication number
EP2497852B1
EP2497852B1 EP20120156449 EP12156449A EP2497852B1 EP 2497852 B1 EP2497852 B1 EP 2497852B1 EP 20120156449 EP20120156449 EP 20120156449 EP 12156449 A EP12156449 A EP 12156449A EP 2497852 B1 EP2497852 B1 EP 2497852B1
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EP
European Patent Office
Prior art keywords
thread
upper thread
lever
hook
sewing machine
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Not-in-force
Application number
EP20120156449
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German (de)
English (en)
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EP2497852A1 (fr
Inventor
Johann Enns
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Duerkopp Adler AG
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Duerkopp Adler AG
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Publication of EP2497852A1 publication Critical patent/EP2497852A1/fr
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Classifications

    • 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 sewing machine according to the preamble of claim 1. Furthermore, the invention relates to a method for sewing a seam beginning with such a sewing machine.
  • a generic sewing machine is known from the EP 2 028 311 A2 and from the DE 102 34 251 A ,
  • a thread pulling device between the thread lever and the upper thread tensioning device leads to the possibility of withdrawing a thread excess arising during a downward movement of the thread lever and then retracting the upper thread during sewing of the seam beginning so far in the sewing material by means of the thread lever that the free end of the sewing thread Upper thread at the seam beginning only slightly protrudes from the fabric.
  • the upper thread is thereby withdrawn by a length corresponding to the thread path difference, which is brought about by the thread pulling device.
  • the free end of the upper thread representing the beginning of the upper thread can be pulled under the fabric, so that it does not affect the appearance of the sewn sewing material.
  • the upper thread tensioning means may be divided into one upper thread main tensioning device and upper thread biasing or auxiliary tensioning device.
  • the upper thread main tension unit which together with the thread lever predefines an area of the upper thread course in which the thread pulling device is arranged, forms part of the upper thread main tensioning device, ie not part of the upper thread tensioning or additional tensioning device.
  • a thread pulling device can be integrated with little structural effort in an upper thread guide.
  • a drive for displacing the thread eyelet can be effected by means of a lifting cylinder or a lifting magnet.
  • a positioning drive for the boom of the thread pulling device may comprise a stepper motor.
  • An eyelet arrangement according to claim 3 optimizes the thread-pulling effect of the thread pulling device.
  • the two fixed thread guide eyelets are arranged in the thread path near the pivotable thread eyelet.
  • a distance between the pivotable thread eyelet in the neutral position and the two fixed thread guide eyelets fixed to the housing can be less than 2 cm and can also be less than 1 cm.
  • An arrangement of the upper thread tensioning device according to claim 5 facilitates a driving sequence in operating the thread pulling device, because synchronization of an operation of the upper thread tensioning device with the operation of the thread pulling device is not required.
  • a configuration with a plurality of upper thread main tension units according to claim 6 is possible.
  • Such a configuration of the upper thread tensioning device leads to a secure and defined thread tension in the sewing operation.
  • the thread pulling device can then be arranged between the upper thread main tension units. There is usually sufficient space to accommodate the Fadenzieh worn given.
  • the advantages of a method according to claim 7 and 8 correspond to those which have already been explained above in connection with the device.
  • the counter-rotation position can be reached after a rotation of the hook tip by at least 180 ° after the detection rotational position, for example after a rotation of the hook tip by 240 ° or 245 °. Due to the maintenance of the thread clamping position during at least a part of the gripper rotation after the detection of the upper thread by the gripper is achieved that the upper thread end is pulled at the seam beginning with the gripper through the fabric down.
  • the tightening of the upper thread when changing the thread pulling device from the neutral position to the thread pulling position causes the thread lever when he raises again below, with the upper thread clamp released, the upper thread at the beginning of the seam by the path difference of the upper thread, by the conversion of the thread pulling device is brought about, withdrawn predetermined length amount.
  • the changeover of the thread pulling device from the neutral position to the thread pulling position can take place during the first stitch of the beginning of the seam.
  • the changeover can alternatively take place during the second stitch, during the third stitch or during an even later stitch when sewing the beginning of the seam.
  • the return of the thread pulling device from the thread pulling position to the neutral position can be incremental during further sewing in small steps.
  • the reset can also be done at the end of the sewing process.
  • the switching to the neutral position can be done for example in a final thread cutting process of the sewing machine.
  • the thread pulling device pulls the upper thread from the thread lever ago and thus desirably retracts the upper thread from the fabric.
  • the upper thread main tension units between the thread lever and the thread pulling device can set the upper thread under a reduced residual thread tension in comparison to the normal tension.
  • the upper thread main tension units between the thread lever and the thread pulling device can be completely deactivated.
  • Relieving a fabric presser according to claim 10 prevents that when pulling the upper thread through the fabric down through the gripper of the upper thread is undesirable clamped by the fabric presser.
  • a sewing machine 1 has an upper arm 2 and a lower case-like base plate 3, which are interconnected by a stand 4 to a C-shaped housing.
  • the arm 2 is an arm shaft 5 (see. Fig.2 ), which is driven by a motor accommodated by means of a belt drive accommodated in the stand 4.
  • a central control device 6 is connected, which in the Fig. 1 is shown schematically in the upper arm 2, but also at a different location and also relative to the sewing machine 1 can be arranged externally and connected thereto, for example via a cable harness.
  • a needle bar 7 is driven up and down, at the lower end of a needle 8 is mounted. Through an eye of the needle 8, an upper thread 9 (see. Fig. 2 ).
  • a gripper 10 is arranged, which in a conventional manner derived from the arm shaft 5 about a vertical axis of rotation 11 (see. Fig. 2 ) is rotary drivable.
  • a bobbin or thread winding housing 12 of the gripper 10 is a supply of a lower thread 13 (see. Fig. 4 ).
  • Fig. 2 shows the leadership of the upper thread 9 of the sewing machine 1 in detail.
  • a first upper thread clamp 14 is arranged, which has a clamping plate 15 which is displaceable relative to a base body 16 of the first needle thread clamp 14.
  • the first needle thread clamp 14 is in signal communication with the control device 6 and is displaceable between a thread clamping position, in which the upper thread 9 is clamped at the location of the first upper thread clamp 14, and a thread release position, in which the first upper thread clamp 14, the upper thread 9 releases.
  • the upper thread 9 runs substantially vertically.
  • a passage location of the upper thread 9 through the first upper thread clamp 14 can be predetermined by means of a plurality of thread passage openings 17 in the base body 16.
  • the upper thread 9 extends in the second yarn passage opening 17 from the right of a total of five arranged transversely to the yarn transport direction yarn passage openings.
  • a thread lever 18 is arranged, whose up and down movement is also derived from the arm shaft 5 in a conventional manner. Between a arranged at the free end of the thread lever 18 thread lever eye 19 and the first upper thread clamp 14 of the upper thread 9 still passes through a guide eye 20, the on in the Fig. 2 upper end of the base 16 is attached.
  • a needle thread main tensioning device 21 Upstream of the thread lever 18, the upper thread 9 passes through a needle thread main tensioning device 21.
  • the latter has in the execution of the Fig. 1 to 7 a working in a conventional manner upper thread main tension unit in the form of a main voltage generator 22.
  • the upper thread main tensioning device 21 is in signal communication with the central control device 6.
  • the main voltage generator 22 sets the upper thread 9 when activated, ie when a thread tension fan cylinder drops, by the control device 6 below a predetermined thread tension.
  • the yarn tension fan cylinder is not shown in the drawing.
  • the main voltage generator 22 can also be used to clamp the upper thread 9 at the location of the main voltage generator 22.
  • the upper thread 9 passes through another guide eye 23 which can be displaced transversely to the upper thread transport direction. Between the guide eye 23 and the upper thread main tensioning device 21, the upper thread 9 passes through a thread tension spring unit 23a.
  • a thread pulling device 24 is arranged in the course of the upper thread 9.
  • the thread pulling device 24 has a pivotable arm 25, which is articulated via a pivot joint 26 on a mounting plate 26 a, which in turn is attached to the arm 2.
  • the thread pulling device 24 is thus mounted on the mounting plate 26a.
  • the boom 25 of the thread pulling device 24 has a thread eye 27 which is deflectable transversely to the yarn path of the upper thread 9 between two attached to the mounting plate 26 a fixed to the housing guide eyelets 28.
  • the boom 25 is changeable between a in the Fig. 2 shown neutral position and one in the Fig.
  • the two housing-fixed guide eyelets 28 cause regardless of whether the boom 25 is in the thread-pulling position or in the neutral position, the upper thread 9 outside the course between the two housing-fixed guide eyelets 28 each takes the same course.
  • the boom 25 is convertible between the neutral position and the thread pulling position by an electromagnetic drive, which in turn is in signal communication with the control device 6.
  • an electromagnetic drive the boom 25 can also be driven pneumatically or by a stepping motor.
  • an upper thread biasing device 29 is arranged, which also operates in a manner known per se and can be in signal communication with the control device 6.
  • the upper thread main tensioning device 21 with the main tension transmitter 22 and the upper thread biasing device 29 are attached to the mounting plate 26a, which in turn is mounted on the arm 2 (see FIG. Fig. 1 ).
  • the upper thread 9 passes through a thread passage opening 31, which in the mounting plate 26 a in the in Fig. 2 upper and forward by about 90 ° bent edge region is executed.
  • a bobbin Upstream of the thread passage opening 31, a bobbin, not shown, is arranged as an upper thread supply.
  • Fig. 2 to 7 show at a moment with the arm shaft 5 rotatably connected handwheel 32 a rotational angle scale 33 is arranged, which is a full revolution of the arm shaft 5 subdivided into 360 angular degrees increments.
  • This degree of rotation angle scale 33 will be referred to in the following.
  • a sewing material plane is defined by a support position of sewing material 34 (cf. Fig. 4 ) is set on a needle plate 35 of the sewing machine 1.
  • Fig. 2 shows the Armwellengnagnagnagna himself 0 °.
  • the needle bar 7 is at top dead center. This position is selected at the beginning of the sewing, ie at the beginning of the seam, because there is the largest passage under the needle 8 for inserting the material 34.
  • the upper thread clamp 14 In position 0 °, the upper thread clamp 14 is in the thread release position.
  • the upper thread main tensioning device 21 is activated.
  • the thread pulling device 24 is in the neutral position.
  • the upper thread biasing device 29 is activated.
  • the thread lever 18 is on the way from bottom dead center to the top.
  • the Fig. 3 shows the arm shaft 5 in the position 205 °.
  • the needle bar 7 is a little way from its bottom dead center, which was reached at 180 °, returned again, so that in addition to the eye of the needle 8 in the Fig. 3 invisible upper thread loop has formed.
  • a in the Fig. 3 also not visible gripper tip of the gripper 10 engage in the upper thread loop and then take the upper thread 9.
  • the upper thread clamp 14 is activated in the thread clamping position.
  • the upper thread main tensioning device 21 is activated.
  • the thread pulling device 24 is in the neutral position.
  • the upper thread biasing device 29 is activated.
  • the thread lever 18 is located on his way to bottom dead center. The thread lever 18 is already removed from its top dead center, so that between the upper thread clamp 14 and the upper thread main tensioning device 21 results in a yarn excess, the thread there is therefore not tense, as in the Fig. 2 shown.
  • This excess thread is approximately twice the distance of the thread lever eye 19 from top dead center of the thread lever 18 to in the Fig. 2 illustrated position 205 °. From position 205 ° begins the gripper 10 with his engaging in the upper thread loop hook tip to take off the upper thread.
  • Fig. 5 shows the Armwellengnagnagna 1000 °.
  • the thread lever eye 19 is in the area of bottom dead center.
  • Oberfadenzug continued by the gripper 10.
  • the upper thread 9 is pulled by the gripper 10 through the fabric down.
  • the discharge of the presser foot 37 which was active between the Armwellengnadianen 205 ° and 300 °, is now so disabled again.
  • the upper thread clamp 14 is now transferred to the thread release position.
  • the upper thread main tensioning device 21 is activated and keeps the upper thread 9 under tension.
  • the boom 25 of the thread pulling device 24 is in the neutral position.
  • the upper thread biasing device 29 is activated. In the position 300 °, the free end 36 of the upper thread 9 has been pulled by the gripper 10 further down.
  • the gripper 10 pulls a free end 36 of the upper thread 9 through the fabric 34 down.
  • the thread lever 18 pulls the upper thread 9 in the fabric 34, as will become apparent from the following description.
  • the free end 36 is then out of the sewing material 34 by a correspondingly smaller amount of the thread length.
  • Fig. 6 shows at the next stitch the Armwellen ein 325 °. Opposite the position Fig. 3 has the arm shaft 5 in Näh Anlagenscardi thus rotated by 120 ° (actually 480 °) on.
  • the thread lever eye 19 is in the position 325 ° in an incipient upward movement to the bottom dead center.
  • the gripper 10 has also compared to the position Fig. 3 rotated by 240 ° (actually 960 °) about the axis of rotation 11.
  • the thread lever 18 is retracted in the course of Armwellenfitung the upper thread 9 in the area of the formed stitch and that by the amount that the Upper thread 9 now takes an extended thread path course in the area of the thread pulling device 24.
  • Fig. 7 shows the Armwellengnagnagnagna needle 8 °.
  • the needle 8 is on the way down.
  • the upper thread clamp 14 is in the release position.
  • the upper thread main tensioning device 21 is activated.
  • the upper thread biasing device 29 is activated.
  • the thread pulling device 24 is in the thread pulling position. In the thread-pulling position, the thread pulling device 24 remains during the entire course of the seam formation.
  • This increment per stitch is so small that a yarn path smaller than the stitch length is returned to the thread pulling device 24 per increment changeover operation.
  • the additional thread path which was created over the detour of the upper thread 9 via the retracted into the thread pulling thread pulling device 24, returned to the movement of the thread lever 18 again, without affecting the further seam formation.
  • the activation of the thread pulling device 24 in the thread pulling position at the Armwellen ein 325 ° causes the free end 36 of the upper thread 9 with the thread lever 18 by the fabric 34, in the course, retracted and thus shortened.
  • the conversion of the thread pulling device 24 from the neutral position to the thread pulling position can also be done at the first stitch, at the third stitch, or at an even later stitch.
  • the status information "seam beginning” in the control device 6 is converted into "running seam".
  • a renewed change to "seam beginning” takes place after a thread trimming operation via the control device 6.
  • This status information is queried during the further sewing process.
  • the thread pulling device 24 is only actuated if the status information "seam beginning" is present.
  • the thread pulling device 24 is returned to the neutral position. This can, as already mentioned above, also occur incrementally during seam formation.
  • the length of the over the fabric 34 protruding free end 36 can be specified by the angular position of the boom 25 in the thread pulling position.
  • a plurality of initial thread lengths can be preselected.
  • the angular position of the arm 25 triggered by the control device 6 results in the thread pulling position.
  • a thread-pulling length which leads to a corresponding initial thread length, can alternatively also be set via a mechanical stop for the boom 25.
  • the method for sewing the seam beginning can be described as follows. First, the upper thread loop is formed. Subsequently, the upper thread loop is grasped with the looper tip of the looper 10 in a detection rotation position of the looper tip. Subsequently, the upper thread 9 with the gripper tip of the gripper 10 during one revolution of the gripper tip of the gripper 10 to the gripper housing of the gripper 10 by about 240 ° to 250 °, in particular by 245 °, until reaching the detection rotational position opposite counter-rotation position moved out. From the detection rotational position, the gripper tip of the gripper 10 rotates to the counter-rotational position so by at least half a revolution about the gripper housing of the gripper 10. After reaching the counter-rotational position of the hook tip of the gripper 10, the thread pulling device 24 is changed over from the neutral position to the thread pulling position.
  • the Fadenwegdifferenz which is brought about by the conversion of the boom 25 between the neutral position and the thread pulling position, 34 can be specified depending on a thickness of the fabric.
  • the thickness of the fabric 34 may be adjusted by the user or may be measured by a thickness sensor, not shown in the drawing.
  • the control device 6 may also be in signal communication with the Ndozensgut-thickness sensor.
  • the main voltage generator 22 can be released for a thread trimming operation at the end of the sewing process, so that there is no thread tension at the location of the main voltage generator 22.
  • the main voltage generator 22 generates the thread tension required for sewing.
  • This thread clamping function of the main voltage generator 22 can be used in sewing tasks in which the upper thread 9 is exposed to high friction in the fabric.
  • An upper thread main tensioning device 38 of the embodiment according to 8 to 12 has two upper thread main tension units 39, 40, which are jointly designed as a main tension generator.
  • One of the two upper thread main tension units, the upper thread main tension unit 40 is arranged in the upper thread path between the thread lever 18 and the thread pulling device 24.
  • This upper thread main tension unit 40 is compared with the main tension device 21 of the embodiment of FIGS Fig. 1 to 7 additionally provided.
  • the other of the two upper-thread main tension units, the upper-thread main tension unit 39 is disposed where the upper-thread main tension unit 22 after the Fig. 1 to 7 is arranged.
  • the residual thread tension prevents that, when the upper thread 9 is pulled forward with the thread pulling device 24, the upper thread 9 is accelerated so that more upper thread 9 is withdrawn than due to the thread path difference of the upper thread 9 between the neutral position and the thread pulling position of the thread pulling device 24. After switching the thread-pulling device 24 into the thread-pulling position, the upper thread main tension unit 40 can be reactivated.

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

Claims (10)

  1. Machine à coudre (1)
    - comprenant un carter (2, 3, 4)
    - comprenant une réserve pour un fil supérieur (9)
    - comprenant une barre à aiguilles (7) comportant une aiguille à coudre (8) pour le guidage du fil supérieur (9) traversant un produit à coudre (34), l'aiguille à coudre (8) étant entraînée verticalement, vers le haut et vers le bas, entre un point mort inférieur et un point mort supérieur,
    - comprenant une griffe (10) pour la saisie du fil supérieur (9) pendant la formation du point,
    - comprenant un tendeur de fil (18) pour tirer une boucle de fil supérieur (9),
    - comprenant un pince-fil supérieur (14) pouvant être amorcé au niveau du déroulement du fil supérieur sur le coté de la réserve entre la griffe (10) et le tendeur de fil (18),
    - comprenant un équipement de tension du fil supérieur (21 ; 38) au niveau du déroulement du fil supérieur sur le côté de la réserve, avant le tendeur de fil (18), qui soumet le fil supérieur (9) à une tension définie à l'état activé,
    caractérisée par
    - un dispositif de tension de fil (24) dans le déroulement du fil supérieur entre le tendeur de fil (18) et au moins un équipement principal de tension du fil supérieur (22 ; 39) de l'équipement principal de tension du fil supérieur (21 ; 38), qui est guidé, en pouvant changer de réglage, entre
    -- une position neutre, dans laquelle le fil supérieur (9) adopte un premier trajet entre le tendeur de fil (18) et l'équipement principal de tension du fil supérieur (22 ; 39),
    -- une position de traction du fil, dans laquelle le fil supérieur (9) adopte un deuxième trajet de fil qui, comparativement au premier trajet de fil, est d'une longueur supérieure, équivalente à une fois la différence des longueurs des trajets du fil.
  2. Machine à coudre selon la revendication 1 caractérisée en ce que le dispositif de traction du fil (24) présente un balancier (25), pouvant pivoter, à l'extrémité duquel est disposé, perpendiculairement au déroulement du fil, un oeillet pour le fil (27).
  3. Machine à coudre selon la revendication 2 caractérisé en ce que l'oeillet pour le fil (27) est disposé entre deux oeillets de guidage de fil (28), faisant corps avec le carter, dans la position neutre dans le déroulement de fil supérieur.
  4. Machine à coudre selon l'une des revendications de 1 à 3, caractérisée par exactement un pince-fil du fil supérieur (14) dans le déroulement du fil supérieur sur le côté de la réserve.
  5. Machine à coudre selon l'une des revendications de 1 à 4 caractérisée en ce que le dispositif de tension du fil supérieur (21) est disposé exclusivement sur le trajet du fil entre le dispositif de traction du fil (24) et la réserve de fil supérieur.
  6. Machine à coudre selon l'une des revendications de 1 à 4 caractérisée en ce que le dispositif de tension du fil supérieur (38) présente plusieurs équipements principaux de tension de fil supérieur (39, 40), précisément un (40) parmi les équipements principaux de tension de fil supérieur étant disposé sur le trajet du fil entre le tendeur de fil (18) et le dispositif de traction du fil (24).
  7. Procédé destiné à coudre un début de couture à l'aide d'une machine à coudre selon l'une des revendications de 1 à 6, comprenant les étapes suivantes :
    - formation d'une boucle de fil supérieur,
    - capture de la boucle de fil supérieur avec une pointe de griffe d'une griffe (10) dans une position de rotation pour la saisie de celle-ci,
    - étirement du fil supérieur (9) à l'aide de la pointe de griffe de la griffe (10) pendant au moins une demie rotation de la pointe de griffe autour d'un carter de griffe de la griffe (10) jusqu'à atteindre une position de rotation de saisie située en face de la position de contre -rotation,
    - après avoir atteint la position de contrerotation de la pointe de griffe de la griffe (10), changement de la position du dispositif de traction du fil entre la position neutre vers la position de traction du fil.
  8. Procédé selon la revendication 7 comprenant les étapes suivantes :
    - formation d'une boucle de fil supérieur (36) par élévation de la barre d'aiguilles (7), avec l'aiguille à coudre (8), partant du point mort inférieur, jusqu'à une position d'élévation de la boucle entre le point mort inférieur et le point mort supérieur, cette élévation s'effectuant pour un pince-fil de fil supérieur (14) ouvert et pour un dispositif de traction du fil (24) en position neutre,
    - après avoir atteint la position d'élévation de la boucle de la barre d'aiguilles (7) :
    mise en oeuvre d'une position de pincement du fil du pince-fils du fil supérieur (14) et conservation de la position de pincement du fil du pince-fil du fil supérieur (14) pendant au moins une partie d'une rotation de la griffe après la saisie et l'étirement du fil supérieur (9) à travers la griffe (10), le fil supérieur étant étiré par ce moyen,
    - changement de réglage du dispositif de traction du fil (24) en partant de la position neutre vers la position d'étirement du fil, de sorte que le fil supérieur (9) est étiré entre le tendeur de fil (18) et l'équipement principal de tension du fil supérieur (22 ; 39), pour un tendeur de fil (18) rabaissé,
    - réglage de retour du dispositif de traction du fil (24) vers la position neutre.
  9. Procédé selon la revendication 8, en faisant référence à la revendication 6, caractérisé en ce que, lors du changement de réglage du dispositif de traction du fil (24) entre la position neutre et la position d'étirement du fil, l'équipement principal de tension du fil supérieur (40), entre le tendeur de fil (18) et le dispositif de traction du fil (24), est modifié dans son réglage en partant d'une position de tension normale vers une position de tension minimale.
  10. Procédé selon l'une des revendications de 7 à 9 caractérisé en ce qu'un presseur de tissu (37) de la machine à coudre (1) est soulagé pendant au moins pendant le début d'un étirement du fil supérieur (9).
EP20120156449 2011-03-07 2012-02-22 Machine à coudre et procédé destiné à coudre un début de couture à l'aide d'une telle machine à coudre Not-in-force EP2497852B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011005198A DE102011005198A1 (de) 2011-03-07 2011-03-07 Nähmaschine sowie Verfahren zum Nähen eines Nahtanfangs mit einer derartigen Nähmaschine

Publications (2)

Publication Number Publication Date
EP2497852A1 EP2497852A1 (fr) 2012-09-12
EP2497852B1 true EP2497852B1 (fr) 2013-11-13

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EP20120156449 Not-in-force EP2497852B1 (fr) 2011-03-07 2012-02-22 Machine à coudre et procédé destiné à coudre un début de couture à l'aide d'une telle machine à coudre

Country Status (6)

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EP (1) EP2497852B1 (fr)
JP (1) JP3175658U (fr)
KR (1) KR200482460Y1 (fr)
CN (1) CN202530278U (fr)
DE (1) DE102011005198A1 (fr)
TW (1) TWM445592U (fr)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
DE202012011059U1 (de) * 2012-11-19 2014-02-20 Dürkopp Adler AG Nähmaschine
DE102012221060B3 (de) * 2012-11-19 2014-02-06 Dürkopp Adler AG Nähmaschine
DE102017201240A1 (de) * 2017-01-26 2018-07-26 Dürkopp Adler AG Verfahren zur Erzeugung eines Naht-Anfangsoberfadens einer in Nähgut auszubildenden Naht mit einem definierten Soll-Nahtüberstand sowie Nähmaschine zur Durchführung eines derartigen Verfahrens
DE102017206499B3 (de) * 2017-04-18 2018-05-03 Dürkopp Adler AG Nähmaschine

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JPH0648196B2 (ja) * 1987-07-13 1994-06-22 シャープ株式会社 計測器等のノイズ障害軽減回路
DE4132991C1 (en) * 1991-10-04 1992-12-03 Duerkopp Adler Ag, 4800 Bielefeld, De Producing seam having short thread ends on bottom of workpiece - involves drawing back needle thread from underside of workpiece so that only short thread piece remains on underside
JPH06134162A (ja) * 1992-10-28 1994-05-17 Juki Corp ミシンの上糸供給制御装置
US5931107A (en) * 1997-12-22 1999-08-03 Mcdonnell Douglas Corporation Advanced stitching head for making stitches in a textile article having variable thickness
DE10234251C1 (de) 2002-07-27 2003-10-09 Duerkopp Adler Ag Verfahren zum Ziehen des freien Fadenendes eines Nadelfadens von der Oberseite eines Nähgutteils auf dessen Unterseite und Nähmaschine zur Durchführung des Verfahrens
KR100515898B1 (ko) * 2004-01-15 2005-09-21 코베스트 주식회사 재봉틀의 회전북장치
JP2008245731A (ja) * 2007-03-29 2008-10-16 Juki Corp ミシン
DE102007039596A1 (de) 2007-08-22 2009-02-26 Dürkopp Adler AG Nähmaschine sowie Verfahren zum Nähen eines Nahtanfangs mit einer derartigen Nähmaschine

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DE102011005198A1 (de) 2012-09-13
CN202530278U (zh) 2012-11-14
KR20120006388U (ko) 2012-09-17
JP3175658U (ja) 2012-05-24
KR200482460Y1 (ko) 2017-01-25
EP2497852A1 (fr) 2012-09-12
TWM445592U (zh) 2013-01-21

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