ATE521745T1 - CONTROL DEVICE FOR LOWER THREAD TENSION - Google Patents
CONTROL DEVICE FOR LOWER THREAD TENSIONInfo
- Publication number
- ATE521745T1 ATE521745T1 AT09176975T AT09176975T ATE521745T1 AT E521745 T1 ATE521745 T1 AT E521745T1 AT 09176975 T AT09176975 T AT 09176975T AT 09176975 T AT09176975 T AT 09176975T AT E521745 T1 ATE521745 T1 AT E521745T1
- Authority
- AT
- Austria
- Prior art keywords
- thread
- tensioning spring
- lower thread
- control device
- support member
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
A lower thread tension control device (1) includes a thread tensioning spring means (20) and an electromagnet (26). The thread tensioning spring means (20) includes a support member (17) having an L-shaped section and is made of a magnetic material, an adjust screw (19) which is screwed to the support member (17) through an intermediate portion (14c) of the thread tensioning spring (14), and a support shaft (18) which having both ends attached to the bobbin case (11) to rotatably support the support member (17). A pressing force of the thread pressing portion (14a) of the thread tensioning spring (14) against the lower thread is controlled in accordance with a change in a current to be supplied to the electromagnet (26), and by adjusting an initial tension of the lower thread in accordance with a screwing amount of the adjust screw (19).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008299413A JP5253980B2 (en) | 2008-11-25 | 2008-11-25 | Lower thread tension control device |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE521745T1 true ATE521745T1 (en) | 2011-09-15 |
Family
ID=42034543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT09176975T ATE521745T1 (en) | 2008-11-25 | 2009-11-25 | CONTROL DEVICE FOR LOWER THREAD TENSION |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2196572B1 (en) |
JP (1) | JP5253980B2 (en) |
CN (1) | CN101736537B (en) |
AT (1) | ATE521745T1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6692573B2 (en) * | 2016-01-15 | 2020-05-13 | Juki株式会社 | Sewing machine bobbin case |
JP6861807B2 (en) * | 2016-10-08 | 2021-04-21 | エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトOerlikon Textile GmbH & Co. KG | A device for cooling the heated yarn |
CN106637731A (en) * | 2017-02-16 | 2017-05-10 | 吴江市震宇缝制设备有限公司 | Thread disorder prevention cop latch of sewing machine |
CN111989431A (en) | 2018-06-22 | 2020-11-24 | 泰科尼卡株式会社 | Double-needle flat sewing machine |
CN115262112B (en) * | 2022-08-25 | 2023-12-12 | 中山市伊诺特智能科技有限公司 | General shuttle sleeve for computerized embroidery machine and sewing machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3051108A (en) * | 1961-08-24 | 1962-08-28 | Singer Mfg Co | Tension release mechanism for sewing machines |
JPS6117736Y2 (en) * | 1980-09-26 | 1986-05-30 | ||
JPS58216090A (en) * | 1982-06-10 | 1983-12-15 | 蛇の目ミシン工業株式会社 | Apparatus for controlling tension of lower yarn of sewing machine |
JPS61228895A (en) * | 1985-04-03 | 1986-10-13 | 株式会社廣瀬製作所 | Inner hook safety apparatus of sewing machine using full rotation hook |
JPS61268292A (en) * | 1985-05-23 | 1986-11-27 | 蛇の目ミシン工業株式会社 | Needle and bobbin thread regulator of sewing machine |
JPH0568764A (en) * | 1991-09-13 | 1993-03-23 | Juki Corp | Bobbin thread controlling device for sewing machine |
JP2008023047A (en) * | 2006-07-20 | 2008-02-07 | Juki Corp | Bobbin thread tension control device |
JP2008119078A (en) * | 2006-11-09 | 2008-05-29 | Juki Corp | Bobbin thread tension control device of sewing machine |
JP5197129B2 (en) * | 2008-04-24 | 2013-05-15 | Juki株式会社 | Lower thread tension control device |
JP5147518B2 (en) * | 2008-04-24 | 2013-02-20 | Juki株式会社 | Lower thread tension control device |
-
2008
- 2008-11-25 JP JP2008299413A patent/JP5253980B2/en active Active
-
2009
- 2009-11-25 AT AT09176975T patent/ATE521745T1/en not_active IP Right Cessation
- 2009-11-25 CN CN200910178386.4A patent/CN101736537B/en active Active
- 2009-11-25 EP EP09176975A patent/EP2196572B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010124863A (en) | 2010-06-10 |
CN101736537A (en) | 2010-06-16 |
EP2196572A1 (en) | 2010-06-16 |
JP5253980B2 (en) | 2013-07-31 |
CN101736537B (en) | 2013-05-29 |
EP2196572B1 (en) | 2011-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |