TW200940773A - Seam ravel preventing method and apparatus therefor - Google Patents
Seam ravel preventing method and apparatus therefor Download PDFInfo
- Publication number
- TW200940773A TW200940773A TW97132938A TW97132938A TW200940773A TW 200940773 A TW200940773 A TW 200940773A TW 97132938 A TW97132938 A TW 97132938A TW 97132938 A TW97132938 A TW 97132938A TW 200940773 A TW200940773 A TW 200940773A
- Authority
- TW
- Taiwan
- Prior art keywords
- looper
- hook
- thread
- forth
- needle
- Prior art date
Links
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- Sewing Machines And Sewing (AREA)
Abstract
To provide a seam ravel preventing method capable of preventing seam ravel from the end side of sewing end of seam while gathering and disposing components inside a sewing machine bed, and an apparatus therefor.In a sewing machine provided with a vertically moving needle and a looper swinging forward and backward while clamping the needle, the apparatus is provided with a receiving knife disposed on the retreat position side of the looper, a hook moving back and forth from the receiving knife and a route change means for changing the back and forth movement route of the hook. At the end of sewing, in the state that the looper is moved forward, the hook is moved forth and engaged with a looper thread from a loop-like needle thread to the looper, the engaging part of the looper thread is cut with the receiving knife by the back movement following it, the back and forth movement route of the hook is changed after the back and forth movement of the hook, the sewing machine is driven for one stitch, and the looper is moved forward again. The hook is moved forth to be advanced to and engaged with the loop-like needle thread captured by the looper and is engaged with the looper thread from the loop-like needle thread to the looper, and the engaging part of each thread is cut with the receiving knife by the back movement following it.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007237793A JP5073428B2 (en) | 2007-09-13 | 2007-09-13 | Method and apparatus for preventing fraying of seams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200940773A true TW200940773A (en) | 2009-10-01 |
| TWI412642B TWI412642B (en) | 2013-10-21 |
Family
ID=40476702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW97132938A TWI412642B (en) | 2007-09-13 | 2008-08-28 | Method and device for preventing thread blooming |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5073428B2 (en) |
| CN (1) | CN101387052B (en) |
| TW (1) | TWI412642B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI382110B (en) * | 2010-04-02 | 2013-01-11 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5468334B2 (en) * | 2009-08-31 | 2014-04-09 | ペガサスミシン製造株式会社 | Method and apparatus for preventing fraying of seams |
| CN102191632B (en) * | 2010-03-11 | 2014-09-10 | 大和缝纫机制造株式会社 | Split prevention method of stitches and split preventor of the same |
| CN104178996A (en) * | 2014-08-08 | 2014-12-03 | 常州市日发精密机械厂 | Resilience prevention yarn cutter |
| CN109267251B (en) * | 2018-12-04 | 2020-10-09 | 杰克缝纫机股份有限公司 | Control method of thread trimming device of sewing machine |
| CN109306576B (en) * | 2018-12-04 | 2021-03-16 | 杰克缝纫机股份有限公司 | Thread trimming device on sewing machine and control method thereof |
| CN112176533B (en) * | 2019-07-03 | 2022-05-13 | 大康织机股份有限公司 | Stitching and cutting device for tubular knitted articles |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121469U (en) * | 1992-04-30 | 1992-11-11 | 赵云泽 | Side open needle |
| JP3535353B2 (en) * | 1997-08-12 | 2004-06-07 | ペガサスミシン製造株式会社 | Method and apparatus for preventing seam fraying |
| JP3790882B2 (en) * | 1999-08-20 | 2006-06-28 | ヤマトミシン製造株式会社 | Fray prevention device for seams |
| JP4030864B2 (en) * | 2002-12-10 | 2008-01-09 | Ｊｕｋｉ株式会社 | Upper thread holding device for sewing machine |
| JP4501136B2 (en) * | 2005-04-14 | 2010-07-14 | ヤマトミシン製造株式会社 | Fray prevention device for seams |
-
2007
- 2007-09-13 JP JP2007237793A patent/JP5073428B2/en active Active
-
2008
- 2008-08-13 CN CN200810210640XA patent/CN101387052B/en active Active
- 2008-08-28 TW TW97132938A patent/TWI412642B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI382110B (en) * | 2010-04-02 | 2013-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI412642B (en) | 2013-10-21 |
| JP5073428B2 (en) | 2012-11-14 |
| CN101387052B (en) | 2012-10-03 |
| CN101387052A (en) | 2009-03-18 |
| JP2009066191A (en) | 2009-04-02 |
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