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 PDFInfo
- 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
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. 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.
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)
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)
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)
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 |
-
2007
- 2007-08-22 DE DE102007039596A patent/DE102007039596A1/en not_active Withdrawn
-
2008
- 2008-08-06 EP EP08014040.3A patent/EP2028311B1/en not_active Expired - Fee Related
- 2008-08-20 KR KR1020080081354A patent/KR101410571B1/en active IP Right Grant
- 2008-08-21 JP JP2008212776A patent/JP5508698B2/en active Active
- 2008-08-22 CN CN2008102133267A patent/CN101372797B/en not_active Expired - Fee Related
Patent Citations (7)
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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