EP2028311A3 - Sewing machine and method for sewing a beginning of a seam with such a sewing machine - Google Patents

Sewing machine and method for sewing a beginning of a seam with such a sewing machine Download PDF

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Publication number
EP2028311A3
EP2028311A3 EP08014040A EP08014040A EP2028311A3 EP 2028311 A3 EP2028311 A3 EP 2028311A3 EP 08014040 A EP08014040 A EP 08014040A EP 08014040 A EP08014040 A EP 08014040A EP 2028311 A3 EP2028311 A3 EP 2028311A3
Authority
EP
European Patent Office
Prior art keywords
thread
upper thread
sewing
supply
sewing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08014040A
Other languages
German (de)
French (fr)
Other versions
EP2028311A2 (en
EP2028311B1 (en
Inventor
Samuel Römich
Johann Enns
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
Original Assignee
Duerkopp Adler 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 Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP2028311A2 publication Critical patent/EP2028311A2/en
Publication of EP2028311A3 publication Critical patent/EP2028311A3/en
Application granted granted Critical
Publication of EP2028311B1 publication Critical patent/EP2028311B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • D05B1/02—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making single-thread seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
    • D05B19/14—Control of needle movement, e.g. varying amplitude or period of needle movement
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B47/00—Needle-thread tensioning devices; Applications of tensometers

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

Eine Nähmaschine hat einen Vorrat für einen Oberfaden (9). Eine Nadelstange (7) mit einer Nähnadel (8) dient zur Führung des Oberfadens (9) durch ein Nähgut. Ein Greifer (10) dient zum Erfassen des Oberfadens (9) während einer Stichbildung. Eine erste Oberfadenklemme (14) ist im vorratsseitigen Oberfadenverlauf zwischen dem Greifer (10) und einem Fadenhebel (18) angeordnet. Eine Oberfaden-Hauptspanneinrichtung (21) ist im vorratsseitigen Oberfadenverlauf vor der ersten Oberfadenklemme (14) angeordnet. Eine zweite ansteuerbare Oberfadenklemme (28) ist im vorratsseitigen Oberfadenverlauf vor der Oberfaden-Hauptspanneinrichtung (21) angeordnet. Zwischen dem Fadenhebel (18) und der zweiten Oberfadenklemme (28) ist eine Fadenzieheinrichtung (24) angeordnet. Diese ist gesteuert umstellbar zwischen einer Neutralstellung und einer Fadenziehstellung, wobei der Weg des Oberfadens (9) in der Fadenziehstellung um eine Fadenweg-Differenz länger ist als in der Neutralstellung. Es resultiert eine Nähmaschine, bei der auf betriebssichere Weise ein kurzes am Nahtanfang aus dem Nähgut herausstehendes Oberfadenstück gewährleistet ist.

Figure imgaf001
A sewing machine has a supply for an upper thread (9). A needle bar (7) with a sewing needle (8) serves to guide the upper thread (9) through a sewing material. A gripper (10) is used to detect the upper thread (9) during a stitch formation. A first upper thread clamp (14) is arranged in the supply-side upper thread path between the gripper (10) and a thread lever (18). An upper thread main tensioning device (21) is arranged in the supply-side upper thread course in front of the first upper thread clamp (14). A second controllable upper thread clamp (28) is arranged in the supply-side upper thread path in front of the upper thread main tensioning device (21). Between the thread lever (18) and the second needle thread clamp (28) a thread pulling device (24) is arranged. This is controlled convertible between a neutral position and a thread pulling position, wherein the path of the upper thread (9) in the thread pulling position by a thread path difference is longer than in the neutral position. The result is a sewing machine, which ensures a short at the beginning of the seam from the fabric protruding upper thread piece in a reliable manner.
Figure imgaf001
EP08014040.3A 2007-08-22 2008-08-06 Sewing machine and method for sewing a beginning of a seam with such a sewing machine Expired - Fee Related EP2028311B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007039596A DE102007039596A1 (en) 2007-08-22 2007-08-22 Sewing machine and method for sewing a seam beginning with such a sewing machine

Publications (3)

Publication Number Publication Date
EP2028311A2 EP2028311A2 (en) 2009-02-25
EP2028311A3 true EP2028311A3 (en) 2011-10-19
EP2028311B1 EP2028311B1 (en) 2013-10-09

Family

ID=40122460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08014040.3A Expired - Fee Related EP2028311B1 (en) 2007-08-22 2008-08-06 Sewing machine and method for sewing a beginning of a seam with such a sewing machine

Country Status (5)

Country Link
EP (1) EP2028311B1 (en)
JP (1) JP5508698B2 (en)
KR (1) KR101410571B1 (en)
CN (1) CN101372797B (en)
DE (1) DE102007039596A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5174414B2 (en) 2007-10-05 2013-04-03 Ｊｕｋｉ株式会社 Sewing thread tension control device
DE102009048794A1 (en) 2009-10-08 2011-04-14 CHEE SIANG INDUSTRIAL CO., LTD., Wugu Thread drawing device for sewing machine, has thread tension-primary control device arranged on base plate, thread tension-secondary control device arranged on base plate, and thread drawing-electromagnet provided on side of base plate
CN102041645B (en) * 2009-10-21 2012-10-17 启翔针车（上海）有限公司 Stitching-starting thread-drawing device for automatic thread-cutting sewing machine
IT1396822B1 (en) * 2009-11-11 2012-12-14 Chee Siang Ind Co Ltd FILTERHIP DEVICE AGENT TO START THE SEWING PROCESS FOR A SEWING MACHINE WITH THE POSSIBILITY OF AUTOMATIC WIRE CUTTING.
CN102220676B (en) * 2010-04-19 2012-11-14 启翔针车（上海）有限公司 Sewing machine needlework supplying device
DE102010043906A1 (en) 2010-11-15 2012-05-16 Dürkopp Adler AG Sewing machine and method for sewing a seam beginning with such a sewing machine
DE102011005198A1 (en) * 2011-03-07 2012-09-13 Dürkopp Adler AG Sewing machine and method for sewing a seam beginning with such a sewing machine
DE102012221060B3 (en) * 2012-11-19 2014-02-06 Dürkopp Adler AG sewing machine
DE202012011059U1 (en) 2012-11-19 2014-02-20 Dürkopp Adler AG sewing machine
DE102017201240A1 (en) * 2017-01-26 2018-07-26 Dürkopp Adler AG Method for producing a seam beginning upper thread of a seam to be formed in sewing material with a defined nominal seam projection and sewing machine for carrying out such a method
DE102017206499B3 (en) 2017-04-18 2018-05-03 Dürkopp Adler AG sewing machine
DE102022203472A1 (en) 2022-04-07 2023-10-12 Dürkopp Adler GmbH sewing machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654883A (en) * 1970-05-14 1972-04-11 Union Special Machine Co Thread control mechanism for sewing machines
DE2815297A1 (en) * 1978-04-08 1979-10-11 Duerkoppwerke CONTROLLED THREAD CLAMPING DEVICE FOR THE NEEDLE THREAD
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 (en) * 2002-07-27 2003-10-09 Duerkopp Adler Ag Sewing machine stitching mechanism relaxes the pressure on the fabric by the presser foot, when the upper thread is clamped between the needle and thread lever on the first seam stitch, for an extended duration with a thicker fabric
EP1522621A1 (en) * 2003-09-27 2005-04-13 Dürkopp Adler Aktiengesellschaft Thread tensioner for a sewing machine
DE102008016774A1 (en) * 2007-03-29 2008-10-02 Juki Corp., Chofu Sewing machine with pressure foot, includes coupling mechanism and regulation section moved in correspondence with vertical foot movement
DE102009048794A1 (en) * 2009-10-08 2011-04-14 CHEE SIANG INDUSTRIAL CO., LTD., Wugu Thread drawing device for sewing machine, has thread tension-primary control device arranged on base plate, thread tension-secondary control device arranged on base plate, and thread drawing-electromagnet provided on side of base plate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604299A1 (en) * 1985-04-16 1986-10-16 Kochs Adler Ag, 4800 Bielefeld METHOD FOR PULLING THE FREE THREADING END OF A NEEDLE THREAD FROM THE TOP OF A SEWING MATERIAL ON ITS BASE AND DEVICE FOR IMPLEMENTING THE METHOD
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 (en) * 1992-10-28 1994-05-17 Juki Corp Upper thread supply controller for sewing machine
JPH06190173A (en) * 1992-12-24 1994-07-12 Juki Corp Device for preventing thread from falling off from needle in beginning of sewing in sewing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654883A (en) * 1970-05-14 1972-04-11 Union Special Machine Co Thread control mechanism for sewing machines
DE2815297A1 (en) * 1978-04-08 1979-10-11 Duerkoppwerke CONTROLLED THREAD CLAMPING DEVICE FOR THE NEEDLE THREAD
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 (en) * 2002-07-27 2003-10-09 Duerkopp Adler Ag Sewing machine stitching mechanism relaxes the pressure on the fabric by the presser foot, when the upper thread is clamped between the needle and thread lever on the first seam stitch, for an extended duration with a thicker fabric
EP1522621A1 (en) * 2003-09-27 2005-04-13 Dürkopp Adler Aktiengesellschaft Thread tensioner for a sewing machine
DE102008016774A1 (en) * 2007-03-29 2008-10-02 Juki Corp., Chofu Sewing machine with pressure foot, includes coupling mechanism and regulation section moved in correspondence with vertical foot movement
DE102009048794A1 (en) * 2009-10-08 2011-04-14 CHEE SIANG INDUSTRIAL CO., LTD., Wugu Thread drawing device for sewing machine, has thread tension-primary control device arranged on base plate, thread tension-secondary control device arranged on base plate, and thread drawing-electromagnet provided on side of base plate

Also Published As

Publication number Publication date
CN101372797A (en) 2009-02-25
CN101372797B (en) 2013-01-02
EP2028311A2 (en) 2009-02-25
JP5508698B2 (en) 2014-06-04
DE102007039596A1 (en) 2009-02-26
KR20090020495A (en) 2009-02-26
EP2028311B1 (en) 2013-10-09
JP2009045468A (en) 2009-03-05
KR101410571B1 (en) 2014-06-23

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