EP3088589B1 - Nähanlage sowie betriebsverfahren hierfür - Google Patents

Nähanlage sowie betriebsverfahren hierfür Download PDF

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Publication number
EP3088589B1
EP3088589B1 EP16163963.8A EP16163963A EP3088589B1 EP 3088589 B1 EP3088589 B1 EP 3088589B1 EP 16163963 A EP16163963 A EP 16163963A EP 3088589 B1 EP3088589 B1 EP 3088589B1
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EP
European Patent Office
Prior art keywords
sewing
distance
sewn material
clamp
setting means
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.)
Active
Application number
EP16163963.8A
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German (de)
English (en)
French (fr)
Other versions
EP3088589A1 (de
Inventor
Artur Hinkelmann
Thomas Nöltge
Nikolai Isaak
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.)
Duerkopp Adler AG
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Duerkopp Adler AG
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Publication date
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Publication of EP3088589A1 publication Critical patent/EP3088589A1/de
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Publication of EP3088589B1 publication Critical patent/EP3088589B1/de
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/06—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/10—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for making piped openings
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting

Definitions

  • the invention relates to a sewing machine with a fabric clamp with two clamp sections for holding down material to be sewn on one side of a seam to be produced against a sewing material support plate. Furthermore, the invention relates to operating methods for such a sewing unit.
  • a sewing unit of the type mentioned is known for example from the DE 198 45 624 C1 ,
  • the DE 10 2007 041 540 A1 describes a binding machine.
  • the DE 89 06 434 U1 describes a device for automatically changing the size number in an automatic sewing machine.
  • At least one distance setting device advantageously predisposes an operation of the sewing unit to specify a distance between the clip sections transversely to the sewing direction with a setting wheel.
  • the additional sewing material part is a piping strip
  • the sewing material clip adapted quickly and without great effort to different piping widths and in particular to different seam spacing across the sewing direction become.
  • a simple adjustment of the clip positions across the sewing direction is possible.
  • an offset, for example, to corner cut knives of the sewing unit transverse to sewing direction can be adjusted or corrected. This results in each case an optimized holding result of Nähgutklammer.
  • the sewing machine can be a two-needle sewing machine.
  • An adjusting threaded spindle allows a precise distance adjustment while optimizing the stability of the fabric clamp.
  • the adjusting threaded spindle may be a trapezoidal spindle.
  • a hand wheel according to claim 3 allows a manual adjustment of the distance adjusting device for setting the distance between the clip portions transverse to the sewing direction.
  • a motor-driven according to claim 4 executed adjustment allows a controlled specification of the distance between the clip portions transverse to the sewing direction.
  • a drive motor for the dial can be a stepper motor.
  • the motor distance specification can be synchronized with the sewing process and / or depending on settings of a sewing operation.
  • a threaded spindle assembly according to claim 5 results in a compact and stably constructed fabric clamp with distance adjustment.
  • the spacing adjusting means respectively associated with the clip portions of claim 6 increase flexibility of pitch specification. Basically, not just a distance but a total of one position the clip sections are given transversely to the sewing direction. The clip sections can thus be mutually adjusted transversely to the sewing device with the two distance adjusting devices while maintaining their distance from each other.
  • An independent operability of the distance adjusting devices according to claim 7 further increases flexibility of the distance specification.
  • a forced coupling between the two distance adjusting devices can also be provided.
  • a knife assembly according to claim 8 may be synchronized with the specification of the clip portion distance operable.
  • a synchronization can be done by means of a central control device of the sewing unit.
  • the advantages of operating the distance adjusting devices according to claim 10 correspond to those which have already been explained above with reference to the claims 6 and 7.
  • the actuation may be a dependent and / or independent actuation. During a sewing operation, it is also possible to switch between a dependent and an independent operation.
  • a method according to claim 11 or 12 can be used to prepare the fabric for the slicing process.
  • a same direction transverse adjustment of the clip portions of the fabric clamp can be done. In this offset correction, therefore, a distance specification takes place without an absolute value of the distance having to be changed.
  • the spacing between the clip sections across the sewing direction can also be changed by actuating the at least one spacing adjusting device.
  • the Fig. 1 and 2 show partly schematic main components of a sewing unit 1 in particular for producing a piped pockets with a pocket opening.
  • a sewing unit 1 With the sewing unit 1, an additional Nähgutteil, for example, a piping strip, with a base Nähgutteil, such as a trouser or a jacket part, are sewn. Also flap or welt pockets can be sewn with the sewing unit.
  • Sewing needles 3, 4 (compare for example Fig. 5 and 6 ) of a sewing machine 5 of the sewing unit 1 is preceded by a piping or flap folding and feeding device 6.
  • a basic function of this piping feed device 6 is known from the prior art. Reference is made to the prior publications DE 100 16 410 C1 . DE 199 26 866 C1 and DE 198 45 624 C1 as well as the references given there.
  • the sewing machine 5 is therefore a two-needle sewing machine. Basically, such a two-needle sewing machine is known from the EP 2 206 819 A1 ,
  • the sewing direction 2 runs along an x-direction of one in the Fig. 3 and 21 drawn Cartesian xyz coordinate system.
  • the sewing material rests on a support plate 7 of the sewing unit 1.
  • the support plate 7 specifies a support plane 56.
  • a Nähgutklammer 8 For holding down sewing material on one side of a seam to be produced against the support plate 7 and the Nähguttransport along the sewing direction 2 a Nähgutklammer 8 main components of the Nähgutklammer 8, namely an observer facing clamp portion 9a and this associated, partially broken illustrated bracket holder 10a and a staple drive KA for this, are in the Fig. 2 partly shown schematically.
  • the clip portions 9 of the fabric clamp 8 are pivotable about a bracket pivot drive 11, which will be explained in more detail.
  • an operable display 12 of the sewing unit 1 which may be a touch screen.
  • Part of the sewing unit 1 is a hold-down pin 13 for holding down the base fabric part after placing it on the support plate 7 and before merging with the additional fabric part. After fixation of the base fabric with the hold-down pin 13 to the support plate 7, the base fabric can be aligned by an operator and smoothed.
  • the hold-down pin 13 is on a frame 14 (see Fig. 4 ) of the sewing unit 1, which also carries the feeder 6.
  • a lifting cylinder 15 is the hold-down pin 13 controlled displaced between an illustrated in the drawing, extended hold-down position and a retracted neutral position.
  • the hold-down pin 13 extends in a vertical hold-down pin plane 16 (see FIG Fig. 1 ).
  • the hold-down pin plane 16 runs parallel to the sewing direction 2.
  • the hold-down pin plane 16 coincides with a plane of symmetry between the two needles 3, 4 of the sewing machine 5.
  • the hold-down pin 13 extends at a finite angle ⁇ (cf. Fig. 2 ) to the vertical, so it runs diagonally. This angle ⁇ is about 5 ° in the embodiment shown.
  • the sewing machine 5 allows an optional, for example, phased, switchable needle transport of the material.
  • the Fig. 5 and 6 show details of a needle transport device 18 for generating the needle transport, in which the sewing needles 3, 4 piercing the material to be transported in the sewing direction 2.
  • a needle feed drive is derived from an arm shaft 19 extending in an arm 20 of the sewing machine 5. At a free end, the arm shaft 19 is rotatably connected to a manually operable handwheel 21.
  • the arm shaft 19 acts on a needle transport adjustment 23.
  • the adjusting 23 is designed as a linkage.
  • the arm shaft 19 is driven by a motor motor, which is not shown in the drawing and can be accommodated, for example, in a stand 24 or in a base plate below the platen 7 of the sewing machine 5.
  • the adjusting mechanism 23 causes an oscillating drive of an intermediate shaft 25 of the needle transporting device 18, which runs parallel to the arm shaft 19.
  • An oscillation angle or an oscillation amplitude of the intermediate shaft 25 is predetermined by a respective transmission setting of the adjusting mechanism 23.
  • This gear adjustment is done by rotating a gear shaft 26 which cooperates with the adjusting gear 23 and also runs parallel to the arm shaft 19. Depending on the angular position of the gear shaft 26 results in another transport stroke of the needle transport in the sewing direction. 2
  • An angular position of the transmission shaft 26 can be changed over by means of a needle transport changeover device 27.
  • the needle transport device 18 can be switched between a first transport position, in the Fig. 5 and 6 is dargterrorism and which is a neutral position, in which the sewing needles 3, 4 do not transmit a transport stroke on the fabric, and a second transport position, in which the sewing needles 3, 4 a needle transporting stroke, different from the transport stroke of the first transport position is transferred to the sewing material transport.
  • To the needle transport changeover 27 includes a lifting cylinder 28 which is fixed to the bottom side of a frame bar 29 of the sewing machine 5 and the lifting piston 30 acts on the transmission shaft 26 via a lever 26a for pivoting.
  • a maximum stroke of the lifting piston 30 is limited by a spherical stop body 30 a, which is rotatably connected to the transmission shaft 26.
  • the stop body 30a is used to specify the second transport position and specifies a pivot position of the transmission shaft 26 and thus a maximum transport stroke of the needle transport.
  • a stop position of the stop body 30a is adjustable via an adjusting means 32. This includes a hand-operated wheel 33, with which the maximum transport stroke and thus a stitch length is adjustable, which is specified via the needle transport in the second transport position.
  • the stopper body 30 a abuts a worm 30 b of the setting wheel 33.
  • a minimum stroke ie a minimal transport stroke of the needle transport, is predetermined when the reciprocating piston 30 is retracted by way of a counter-stop body 31 mounted in a manner not shown in the housing, for the stop body 30a.
  • the minimum stroke is 0 mm. In the position Minimalhub, so if the stopper body 30a rests against the counter-stop body 31, so no needle transport takes place.
  • the lifting cylinder 28 thus acts on the deflection lever 30a pivoting on the one actuating shaft performing gear shaft 26, the pivot angle is a measure of the needle transport stroke along the sewing direction 2.
  • a tension spring 34 serves to bias the transmission shaft 26 in the in Fig. 5 and 6 shown neutral position "no transport stroke".
  • the predetermined via the adjusting 23 oscillation amplitude of the intermediate shaft 25 is transmitted via a transmission link 35 on a Nadelstangenkulissen shaft 36.
  • An oscillation amplitude of the needle bar linkage shaft 36 is thus predetermined via the oscillation amplitude of the intermediate shaft 25.
  • the Nadelstangenkulissen shaft 36 is parallel to the arm shaft 19th
  • the Nadelstangenkulissen shaft 36 is rotatably connected to a Nadelstangenkulisse 37 for a needle bar 38, at the needle needles 39, the two sewing needles 3 and 4 are fixed.
  • the needles 3, 4 oscillate about a needle transport pivot axis 40.
  • a needle oscillation angle in the second transport position that is, when the stopper body 30a on the screw 30b extended Hubkolben 30, and thus a maximum needle transport stroke is specified via the setting wheel 33.
  • the lifting cylinder 28 is connected to a central control device 41 of the sewing unit 1 in signal connection.
  • a central control device 41 of the sewing unit 1 in signal connection.
  • this control device 41 for example, the lifting cylinder 15 and the lifting cylinder 28 and the drive motor for the arm shaft 19 are driven.
  • the needle transport can optionally be switched on.
  • the sewing process is started with a first, predetermined needle transport stroke.
  • the needle feed stroke can then be changed over to a second, predetermined needle feed stroke, which differs from the first needle feed stroke.
  • This second needle transport stroke is predetermined by the setting wheel 33.
  • the second needle transporting stroke can also be predetermined via the control device 41 in an embodiment which is not illustrated. This can be done, for example, via a motor-driven setting wheel in the manner of the setting wheel 33.
  • the optionally switchable needle transport during the sewing process can be used to support an alternative material transport.
  • the switching of the needle transport stroke can be controlled, for example, depending on a detection of a fabric thickness.
  • the control device 41 communicate with a material thickness sensor, not shown, and actuate the lifting cylinder 28 for connecting the needle transport when reaching a predetermined Nähgutdicke.
  • a changeover of the needle transport can also be effected as a function of a measured material transport speed. For this purpose, for example with the aid of an optical sensor, the speed of the material transport is monitored during the sewing process. If the material transport speed is below a tolerance value, the needle transport can again be switched on via the control device 41 by actuation of the lifting cylinder 28.
  • the adjustable Nähgutklammer 8 based on Fig. 7 ff.
  • Components of the Nähgutklammer 8, to which a bracket portion 9 belongs and the viewer, for example, in the Fig. 2 . 7 and 13 are referred to, are referred to below with the letter "a"; the components of the facing away from this clip portion 9 of the fabric clamp 8 with the letter "b".
  • the two clip portions 9a, 9b are constructed with respect to a central plane of symmetry M substantially mirror-symmetrical, so it is sufficient to describe one of the two clip portions 9a in detail below.
  • Each of the clip portions 9a, 9b of the fabric clamp 8 has a clip holder 10a, 10b, which is about a horizontal, transverse to the sewing direction 2 pivot axis 86 between a in the Fig. 2 shown, raised release position and a clamping position is pivotable.
  • the clip holders 10a, 10b are pivotally mounted in a U-shaped bearing block 87a, 87b, respectively.
  • the bearing blocks 87a, 87b are components of the clamp frame KR, which in turn is connected to the frame of the sewing unit 1.
  • the staple drive KA (compare Fig. 2 ), which is controlled via the control device 41, the clip frame KR and with this the clip portions 9a, 9b along the sewing direction 2 can be displaced.
  • a distance adjusting device 88 is used to specify a distance between the clip portions 9a, 9b transversely to the sewing direction 2.
  • a in the Fig. 8 Plotted distance A between the two clip holders 10a, 10b is a measure of this distance between the clip portions 9a, 9b transversely to the sewing direction 2.
  • Each of the two clip sections 9a, 9b has a spacing adjusting device 88a, 88b assigned to it.
  • the distance adjusting device 88a has a dial 89a, which in the embodiment according to Fig. 9 to 12 is designed as a handwheel.
  • the dial 89a is accessible from the outside for manual operation and rotatably connected to a setting threaded spindle 90a.
  • the adjusting threaded spindle 90a is rotatably mounted on both sides on legs of the bearing block 87a via bearings 91a axially and radially.
  • the staple panning drives 11a, 11b for drivingly pivoting the staple sections 9a, 9b about the pivot axis 86 are made as pneumatic cylinders and fixed to a base of the respective pedestal 87a, 87b.
  • spindle nut 92a is also designed as a holding bracket for the associated bracket holder 10a, 10b.
  • a hinge connection 93a with a slot connection eye 94a in which engages a coupling rod 95a, the spindle nut 92a and thus the Nähgutklammer 9a with the staple pivot drive 11a is in operative connection.
  • the slot connection eyelet 94a is fixed to the clip holder 10a.
  • the coupling rod 95a is fixed to a stroke driving part 96a of the staple pivot drive 11a.
  • the stroke drive part 96a is then a reciprocating piston.
  • a drive cylinder of the staple pivot drive 11a may also be designed as a stepper motor.
  • the coupling rod 95a extends horizontally and thus on the one hand parallel to the pivot axis 86 and on the other hand parallel to the distance A to be set.
  • the two distance adjusters 88a, 88b are independently operable.
  • a Nähguttransport using the Nähgutklammer 8 in the sewing direction 2 is driven via the staple drive KA.
  • a motor-driven running dial 98a is designed as a gear which meshes with a toothed belt 99a, which in turn is driven by a drive gear 100a.
  • the drive gear 100a is driven via a drive shaft 101a of a pitch adjustment motor 102a, which in turn is mounted to the base of the bearing block 87a adjacent to the staple pivot drive 11a.
  • the drive shaft 101a is parallel to the adjusting threaded spindle 90a.
  • the following method of operation of the sewing unit 1 for sewing the additional workpiece with the base workpiece can be carried out with the workpiece clip 8: after fixing the base workpiece by pivoting the clip portions 9a, 9b of the workpiece clamp 8 into the clamping position, driven by the clamp Pivoting drives 11a, 11b, and the folding of the additional Nähgutteils on the base fabric part of the sewing process for generating the seam and possibly the pocket opening is started.
  • the spacing adjusting means 97a, 97b for changing the distance A between the clip portions 9a, 9b transversely to the sewing direction 2 can now be changed.
  • both distance adjusters 97a, 97b can be actuated during the sewing process. This operation can be done, for example by means of a positive control, not shown, also dependent on each other.
  • This actuation of the distance adjusting device 97a, 97b takes place by activating the respective stepping motor 102a, 102b. This and also the driving The clip-pivoting actuators 11a, 1b via the control device 41st
  • the bearing block connecting eye 94a slides along the coupling rod 95a, so that a degree of freedom for a displacement of the spindle nut 92a is given relative to the frame-fixed clamp pivot drive 11a.
  • the above-explained method with the use of the distance adjusting device 88a, 88b or 97a, 97b can be used when producing a single seam with two transverse to the seam direction spaced apart single seams.
  • the double seam 103 to be produced has two individual seams 104, 105, whose spacing from one another transverse to the sewing direction 2 is denoted by B. Between the individual seams 104, 105, the longitudinal section generated in the form of a pocket opening incision 106 extends by means of a knife assembly, not shown.
  • the clamping positions of the clip sections 9a, 9b can be adjusted transversely to the sewing direction 2 to the desired distance B between the individual seams 104, 105.
  • a possible offset C between a position of the corner cuts 107, 108 and the pocket opening recess 106 can also be corrected transversely to the sewing direction 2 with the aid of the distance adjusting device 88a, 88b or 97a, 97b.
  • both distance setting devices 88a, 88b and 97a, 97b can be actuated by corresponding actuation of the hand setting wheels 89a, 89b or by motor actuation of the setting wheels 98a, 98b for the same-way transverse adjustment of the two clip sections 9a, 9b, so that while maintaining the distance A both clip portions 9a, 9b are displaced in the same direction across the sewing direction 2 to compensate for the offset C.
  • FIGS. 19 and 20 Further piping geometries, which can be realized with the aid of the distance adjusting device 97a, 97b, are exemplary in FIGS FIGS. 19 and 20 shown.
  • the distance B between the sutures 104 and 105 monotonically changes between values B1 and B2.
  • the distance value B1 leading in the sewing direction 2 may be greater than the distance value B2 following the sewing direction.
  • the inverse relation B1 ⁇ B2 is also possible.
  • it is not mandatory that a change between the distance values B 1 and B2 is actually monotonic.
  • virtually any continuous distance courses between the values B 1 and B2 can be realized. Accordingly, the individual seams 104, 105 can run straight, as in the Fig. 19 represented, or another continuous course, for example have a curved, a sinusoidal or another different course.
  • the variation of the values for the distance B between the individual seams 104, 105 is realized by means of a staple spread which can be predetermined via the distance setting device 97a, 97b.
  • a staple spread which can be predetermined via the distance setting device 97a, 97b.
  • the pitch adjuster 97a, 97b is operated to change the distance between the staple portions 9a, 9b across the sewing direction 2 during the sewing operation.
  • FIG. 20 An example of a piping geometry with constant distance B between the individual seams despite actuation of the distance adjuster 97a, 97b 104, 105 shows the Fig. 20 , Both individual seams 104, 105 are bent parallel to each other. This bend is followed by the single seams 104, 105 of the pocket opening incision 106.
  • Such piping geometry can be accomplished by synchronously actuating the spacing adjusters 97a, 97b with the staple feed for suture transport via the staple drive KA.
  • Another mode of operation of the driven distance adjusting means 97a, 97b simplifies the cutting in of the pocket opening incision 106.
  • Fig. 21 shows an overall perspective view of main components of the sewing unit. 1
  • the Nersgutklammer 8 including the staple frame KR is covered by a cover 110th
  • the sewing unit 1 has a base frame 111 which carries the sewing machine 5 and the above-explained cloth feed conveying components for feeding cloth to the stitch forming portion and also the above-explained cloth removing components for discharging the sewing cloth from the stitch forming portion.
  • the base frame 111 includes the support plate 7.
  • the support plate 7 specifies the support plane 56.
  • the support plane 56 is of support coordinates x and y of the Cartesian coordinate system (cf. Fig. 3 ) spanned.
  • a sliding plate 112 of the sewing unit 1 is mounted in the region of the support plate 7. On the sliding plate 112, the material slides during transport.
  • a relative position of the slide plate 112 to the support plate 7 in the support plane 56 along the two support coordinates x and y are a position specification device 113 of the sewing unit 1 exactly before.
  • the position setting device 113 has a first position fixing unit 113a. This gives a relative positioning of the slide plate 112 to the support plate 7 in the support plane 56 along both support coordinates x and y exactly.
  • the x, y coordinate of this relative positioning point is in the Fig. 21 illustrated by a positioning line 114.
  • the first position fixing unit 113a is formed by a positioning pin 115, which cooperates with a positioning pin receptacle 116 in the sliding plate 112.
  • the positioning pin receptacle 116 is formed by a passage opening in the sliding plate 112.
  • the positioning pin 115 is inserted into a mounting receptacle 117 of the support plate 7.
  • a second position fixing unit 113b of the position setting device 113 precisely positions a relative positioning direction 118 of the slide plate 112 to the support plate 7 in the support plane 56 along one of the two support coordinates x and y, namely along the support coordinate x.
  • the second position fixing unit 113b is formed by another positioning pin 119 which cooperates with a positioning long hole 120 formed in the sliding plate 112.
  • the positioning long hole 120 extends along the relative positioning direction 118 of the second position fixing unit 113b, that is, along the x direction.
  • the positioning pin 119 of the second position fixing unit 113b is in turn fixed in a mounting receptacle 121 in the support plate 7.
  • An x, y coordinate of the positioning pin 119 of the second position fixing unit 113b is shown in FIG Fig. 21 illustrated by another positioning line 122.
  • the two position fixing units 113a, 113b have a distance to each other in the support plane 56 which is greater than 50% of a maximum extent of the slide plate 112 in the support plane 56, which is therefore greater than one half of a diagonal extension of the slide plate 112 in the support plane 56.
  • this distance between the two position fixing unit 113a, 113b to each other more than 80% of this maximum diagonal extension of the sliding plate 112th

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP16163963.8A 2015-04-28 2016-04-06 Nähanlage sowie betriebsverfahren hierfür Active EP3088589B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015207758.6A DE102015207758A1 (de) 2015-04-28 2015-04-28 Nähanlage sowie Betriebsverfahren hierfür

Publications (2)

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EP3088589A1 EP3088589A1 (de) 2016-11-02
EP3088589B1 true EP3088589B1 (de) 2018-03-14

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EP (1) EP3088589B1 (zh)
JP (1) JP6795326B2 (zh)
KR (1) KR102489935B1 (zh)
CN (1) CN106087283B (zh)
DE (1) DE102015207758A1 (zh)
TW (1) TWI720980B (zh)

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WO2020207769A1 (de) 2019-04-12 2020-10-15 Pfaff Industriesysteme Und Maschinen Gmbh Nähmaschine mit einer fadenfinger-baugruppe

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DE102017216725A1 (de) 2017-09-21 2019-03-21 Dürkopp Adler AG Verfahren zum Betrieb einer Nähmaschine sowie Nähmaschine zur Durchführung des Verfahrens
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DE102019205303A1 (de) * 2019-04-12 2020-10-15 Pfaff Industriesysteme Und Maschinen Gmbh Fadenfinger-Baugruppe für eine Nähmaschine

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CN106087283A (zh) 2016-11-09
DE102015207758A1 (de) 2016-11-03
JP2016209561A (ja) 2016-12-15
KR20160128225A (ko) 2016-11-07
TW201704582A (zh) 2017-02-01
TWI720980B (zh) 2021-03-11
CN106087283B (zh) 2019-10-29
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