EP1257706B1 - Verfahren und vorrichtung zum maschinellen nähen einer doppelkettenstichnaht - Google Patents

Verfahren und vorrichtung zum maschinellen nähen einer doppelkettenstichnaht Download PDF

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Publication number
EP1257706B1
EP1257706B1 EP00990581A EP00990581A EP1257706B1 EP 1257706 B1 EP1257706 B1 EP 1257706B1 EP 00990581 A EP00990581 A EP 00990581A EP 00990581 A EP00990581 A EP 00990581A EP 1257706 B1 EP1257706 B1 EP 1257706B1
Authority
EP
European Patent Office
Prior art keywords
thread
needle
sewing
looper
auxiliary part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00990581A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1257706A1 (de
Inventor
Peter Reinders
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.)
Schmale Holding GmbH and Co
Original Assignee
Schmale Holding GmbH and Co
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 Schmale Holding GmbH and Co filed Critical Schmale Holding GmbH and Co
Priority to SI200030604T priority Critical patent/SI1257706T1/xx
Publication of EP1257706A1 publication Critical patent/EP1257706A1/de
Application granted granted Critical
Publication of EP1257706B1 publication Critical patent/EP1257706B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
    • D05B1/10—Double chain-stitch seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B61/00—Loop holders; Loop spreaders; Stitch-forming fingers

Definitions

  • the invention relates to a method for machine sewing one Double chain stitch, where the Double chain stitch using an industrial Sewing machine with sewing needle and needle thread as well Main looper and looper thread is formed, by the needle thread on the underside of the sewing chain-like thread loops locked, during the course of Stitch formation process in particular Main grippers moving transversely to the seam direction in the loop stroke position of the sewing needle Takes up the needle thread loop and the Looper thread passes through the loop while the needle thread loop on the main hook slides along, the looper thread and the Needle thread loop to form a triangle be clamped into which the needle at subsequent downward gear stabs.
  • Double chain stitching For industrial sewing of fabric or individual textile pieces, especially for Sewing the hems is done with the appropriate Sew a straight double chain stitch generated.
  • the application of a That's why double chain stitching is one of the reasons advantageous because on the arrangement of a Sub coil can be dispensed with and no Winding the hook thread is required.
  • the thread is guided on the one hand by means of the sewing needle that guides the needle thread and pierces through the sewing plane and a thread loop behind the sewing plane forms when withdrawing the needle, whereby on the other hand, below the near level Main gripper is provided, the Looper thread and through the loop of the Threading needle thread.
  • US-A-3 867 891 is a multiple needle double chain stitch quilting machine known. at the aim of this well-known machine is to create a machine that makes it possible is that the stitching is also transverse in one direction to the direction of movement of the grippers both to the right and to the right Left.
  • a Spreader provided with a spreader finger, which engages the lower thread (looper thread) and the looper thread from the straight line Movement of deviating transport movement of the sewing material or the like for from Gripper facing away from the needle axis of the To redirect the sewing needle.
  • this machine So the looper thread using the spreader moved laterally to the looper thread to get behind the needle.
  • the object of a method and a device of the generic type create with that locking one Double chain stitch in a simple way and with high precision even at high Sewing speeds especially then is ensured if the direction of the seam is not straight and if to Seam closure against a reversal of the direction of sewing the direction of the seam.
  • the Invention before that to avoid Skipped stitches using a driven Auxiliary part the needle thread loop and the Looper thread below the sewing plane in the Area between the main gripper and the sewing plane with Distance from the sewing needle and the main hook merged and so held and such is moved that the thread triangle spanned into which the sewing needle goes when going down punctures.
  • one Cross seam or other seam shapes is one perfect locking possible because the thread triangle by means of such seam shapes of the auxiliary part properly in the area is stretched, in which the sewing needle at Downward gear punctures.
  • the sewing direction is reversed that after reversal of direction in the Stitch rhythm of the up and down moving sewing needle from the sewing needle Thread loop formed below the fabric is picked up by the main gripper, then by means of the driven auxiliary part of the Thread loop forming needle thread below the Sewing plane with hook thread at a distance from the Needle and the main looper in the direction of the seam this is brought together and held as well as the merged thread area in Seam direction is moved and a thread triangle, formed from the one forming the loop Needle thread skein, parallel to the main hook guided looper thread area and the merged area leading Looper thread area that is stretched in which sticks the sewing needle, and subsequently the merged thread area from the auxiliary part is released.
  • the auxiliary part in sync with the sewing machine or Stitch rhythm is driven by the sewing needle.
  • the auxiliary part can have a Belt drive with the drive of the sewing machine be coupled so that a common drive is sufficient for both elements.
  • auxiliary part from a separate drive is driven.
  • the auxiliary part is driven by a servo drive.
  • the separate drive only started up when the auxiliary part is to be moved.
  • the drive with a separate drive allows common sewing machines use and with the appropriate Procedure according to the invention operate without the sewing machine itself must be rebuilt or changed.
  • the separate drive especially in Form of a servo drive, the possibility created the drive exactly on the respective problem of seam formation align or just drive in To put operation when a movement of the Auxiliary part is required.
  • the invention also relates to a Device for machine sewing a Double chain stitch, where the Double chain stitch using an industrial Sewing machine with sewing needle and needle thread as well Main looper and looper thread is formed, by the needle thread on the underside of the fabric chain-like thread loops locked, during the course of Stitching process in particular yourself Main grippers moving transversely to the seam direction in the loop stroke position of the sewing needle Takes up the needle thread loop and the Looper thread passes through the loop while the needle thread loop on the neck of the Main gripper slides along with the The looper thread and the needle thread loop a triangle of threads, into which the needle in the subsequent downward gear punctures.
  • the inventive Procedure or by the Formation of the device according to the invention a gentle treatment of the threads by the Auxiliary part, so that the danger of thread breakage is largely reduced.
  • a gear coupling of the auxiliary part with the sewing machine drive is forced synchronous movement of the elements achieved, see above that a high level of seam precision is achieved.
  • seams are formed against the actual direction of the seam, for example, at the end of the seam intervened early in the sewing process in order to the corresponding thread guide guarantee.
  • the inventive Procedure and device achieved that the intervention by means of the auxiliary part directly when picking up the thread loop through the Main gripper begins and only when released the thread loop to a certain one Time ends when the locking of the Double chain stitch is completed. considered one fully executed Double chain stitch, that's the position Thread loop taken up by more than 90% of the total timing for one Overall stitch sequence on the main hook. Within this time the thread loop takes off exactly definable at certain times Positions to get the triangle correct open and a correct locking ensure without missing stitches that will cause the seam to open have. Because the auxiliary part several Functional areas respectively Has functional edges, is in Interaction with the movement of the Auxiliary part enables the thread loop in defined, decisive for the sewing process bring temporal and spatial positions or the thread triangle accordingly large and precisely positioned.
  • Functional edge can be in any way be trained. For example, it can by bending a molded part be shown. But you can also by formed a smooth rod or the like be that of a notch or something like that Element has. It is essential for them Function only that the functional edge the Needle thread and the looper thread in one point holds together so that by the movement of the The corresponding triangle can be spanned.
  • the main elements of industrial, producing double chain stitches Sewing machine are the sewing needle 1 with a Perforation 2 on the needle tip for passage of the needle thread 3, which is the upper thread represents and a below the vicinity level 4 located, synchronized with the sewing needle 1 driven main gripper 5, the Working direction is indicated at 6.
  • the Sewing needle 1 moves in the direction of Arrow 7 out.
  • the main gripper 5 leads the Looper thread 8, the hole 9 of the Main gripper exits.
  • Throat plate or the like to hang up serves the fabric in the vicinity of level 4, not shown, as well as a possibly provided fabric presser, which the fabric in the Sewing level 4 against the needle plate or against one also not shown if applicable, provided fabric backer (Carrier) presses.
  • a possibly provided fabric presser which the fabric in the Sewing level 4 against the needle plate or against one also not shown if applicable, provided fabric backer (Carrier) presses.
  • the normal direction of transport of the sewn Goods are indicated at 10 by an arrow. This direction corresponds to the normal one Seam direction while the opposite Direction of reversal opposite to Seam direction corresponds.
  • an auxiliary part 11 is effective (The mode of action will be explained in more detail below explained), which when sewing in the sewing direction 10 can be ineffective, if only by the Movement of the sewing material later described triangle is stretched.
  • the auxiliary part 11 is in shown different positions, namely in working positions I to IV, whereby the Auxiliary part 11 a deviating from the circular shape, curvilinear, self-contained movement performs, starting from position I over position II to position III and then to position IV and subsequently back to the Position I.
  • the auxiliary part 11 is then from position II moved to position III until the Needle thread 3 and the looper thread 8 the edge 13, for example a corner area, angular area or rounded corner area, of the auxiliary part 11 reached and held there. In this way is between the range of Needle thread loop on the main looper 5 is held, the free hook thread 8 and the Main gripper 5 a triangle spanned, in which the sewing needle 1 when going down punctures.
  • the needle thread 3 and the hook thread 8 are guided on the corner area 13 as long as until the sewing needle 1 is securely in the thread triangle stabbed.
  • the main gripper 5 moves in the opposite direction the working direction 6 again in the Starting position back.
  • the auxiliary part 11 by an L-shaped Angle shown.
  • the cross section of the legs is preferably round to damage the Exclude threads.
  • the shape of the auxiliary part 11 is not necessarily L-shaped, any shape is possible, as long as only the corresponding functional areas and functional edges are preserved.
  • the Movement actuation of the auxiliary part can via a separate drive.
  • the actuation can also be done via an eccentric drive, where the eccentric training slowed and accelerated movement of the To implement auxiliary part 11 in a simple manner is.
  • Auxiliary part with the drive of the sewing machine to forcibly couple to synchronize to reach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP00990581A 2000-01-17 2000-12-21 Verfahren und vorrichtung zum maschinellen nähen einer doppelkettenstichnaht Expired - Lifetime EP1257706B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030604T SI1257706T1 (en) 2000-01-17 2000-12-21 Method and device for mechanically sewing a double chain stitch seam

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10001611 2000-01-17
DE10001611A DE10001611C2 (de) 2000-01-17 2000-01-17 Verfahren und Vorrichtung zum maschinellen Verriegeln einer Kettenstichnaht
PCT/DE2000/004626 WO2001053591A1 (de) 2000-01-17 2000-12-21 Verfahren und vorrichtung zum maschinellen nähen einer doppelkettenstichnaht

Publications (2)

Publication Number Publication Date
EP1257706A1 EP1257706A1 (de) 2002-11-20
EP1257706B1 true EP1257706B1 (de) 2004-11-17

Family

ID=7627699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00990581A Expired - Lifetime EP1257706B1 (de) 2000-01-17 2000-12-21 Verfahren und vorrichtung zum maschinellen nähen einer doppelkettenstichnaht

Country Status (27)

Country Link
US (1) US6390004B2 (sh)
EP (1) EP1257706B1 (sh)
JP (1) JP4692797B2 (sh)
KR (1) KR100650234B1 (sh)
CN (1) CN100334284C (sh)
AR (1) AR027233A1 (sh)
AT (1) ATE282730T1 (sh)
AU (1) AU771029B2 (sh)
BR (1) BR0016963A (sh)
CA (1) CA2387118C (sh)
CZ (1) CZ301876B6 (sh)
DE (2) DE10001611C2 (sh)
EE (1) EE04530B1 (sh)
EG (1) EG23216A (sh)
ES (1) ES2226975T3 (sh)
GT (1) GT200100006A (sh)
HR (1) HRP20020289A2 (sh)
HU (1) HUP0202583A2 (sh)
IL (1) IL149130A (sh)
MX (1) MXPA02002726A (sh)
MY (1) MY127132A (sh)
PL (1) PL202071B1 (sh)
PT (1) PT1257706E (sh)
TR (1) TR200201803T2 (sh)
TW (1) TW541375B (sh)
WO (1) WO2001053591A1 (sh)
YU (1) YU49325B (sh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302877B6 (cs) * 2010-12-17 2011-12-28 Technická univerzita v Liberci Zarízení pro tvorbu klicky na niti
CN103031670B (zh) * 2011-09-30 2014-09-10 兄弟工业株式会社 缝纫机

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065717A (en) * 1958-02-07 1962-11-27 Union Special Machine Co Sewing machines
JPS5231096Y1 (sh) * 1969-06-12 1977-07-15
GB1332580A (en) * 1970-11-13 1973-10-03 Rimoldi C Spa Virginio Sewing machines
US3783810A (en) * 1970-11-18 1974-01-08 Rimoldi C Spa Virginio Looper driving device with periodically variable speed in zig-zag chainstitch sewing machines
JPS5414128Y2 (sh) * 1972-04-11 1979-06-13
US3867891A (en) * 1972-12-26 1975-02-25 Oehler Ag Multi-needle double chain-stitch quilting machine
JPS5469066U (sh) * 1977-10-20 1979-05-16
DE3201254C2 (de) * 1982-01-16 1983-12-29 Union Special Gmbh, 7000 Stuttgart Nähmaschine
IL71041A (en) * 1984-02-23 1986-07-31 Shenkar College Textile Tech Yarns and threads and their use in the fabrication of textile products
EP0499651A1 (de) * 1991-02-14 1992-08-26 Schips Ag Nähautomation Nähmaschine
JP3004860B2 (ja) * 1993-06-08 2000-01-31 ジューキ株式会社 オーバーロックミシンの針糸さばき装置
JP3487638B2 (ja) * 1994-05-16 2004-01-19 ジューキ株式会社 ミシンの目とび防止装置
JPH10509618A (ja) * 1994-11-23 1998-09-22 シャリフォビッチ タジバーエフ、ザリフ ２糸鎖縫いミシン“ザリフ”
JPH08280973A (ja) * 1995-04-12 1996-10-29 Pegasus Sewing Mach Mfg Co Ltd 二重環縫いミシンのルーパ糸制御方法及び装置
DE19719372C2 (de) * 1997-05-07 2001-12-06 Altin Naehtechnik Prototyping Verfahren und Vorrichtung zur Nahtendensicherung durch Einziehen der Fadenkette an Ein- und Zweinadel-Überwendlich-Nähmaschinen

Also Published As

Publication number Publication date
PL357368A1 (en) 2004-07-26
PT1257706E (pt) 2005-01-31
CA2387118A1 (en) 2001-07-26
YU19602A (sh) 2003-04-30
DE10001611C2 (de) 2001-11-08
CZ301876B6 (cs) 2010-07-14
US6390004B2 (en) 2002-05-21
KR100650234B1 (ko) 2006-11-27
JP2001239082A (ja) 2001-09-04
TW541375B (en) 2003-07-11
HUP0202583A2 (en) 2007-12-28
IL149130A0 (en) 2002-11-10
BR0016963A (pt) 2002-10-15
ATE282730T1 (de) 2004-12-15
EE200200258A (et) 2003-06-16
TR200201803T2 (tr) 2002-12-23
DE50008707D1 (de) 2004-12-23
EE04530B1 (et) 2005-08-15
AU3001701A (en) 2001-07-31
YU49325B (sh) 2005-06-10
CZ20021553A3 (cs) 2002-09-11
AR027233A1 (es) 2003-03-19
AU771029B2 (en) 2004-03-11
HRP20020289A2 (en) 2003-06-30
JP4692797B2 (ja) 2011-06-01
CN1423715A (zh) 2003-06-11
MY127132A (en) 2006-11-30
KR20020076258A (ko) 2002-10-09
ES2226975T3 (es) 2005-04-01
US20010011518A1 (en) 2001-08-09
CN100334284C (zh) 2007-08-29
IL149130A (en) 2005-11-20
GT200100006A (es) 2002-03-25
PL202071B1 (pl) 2009-05-29
EP1257706A1 (de) 2002-11-20
WO2001053591A1 (de) 2001-07-26
MXPA02002726A (es) 2002-10-23
EG23216A (en) 2004-08-31
DE10001611A1 (de) 2001-08-02
CA2387118C (en) 2006-12-12

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