CN101792958B - Bobbin thread tension adjusting device of sewing machine - Google Patents
Bobbin thread tension adjusting device of sewing machine Download PDFInfo
- Publication number
- CN101792958B CN101792958B CN201010140112A CN201010140112A CN101792958B CN 101792958 B CN101792958 B CN 101792958B CN 201010140112 A CN201010140112 A CN 201010140112A CN 201010140112 A CN201010140112 A CN 201010140112A CN 101792958 B CN101792958 B CN 101792958B
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- Prior art keywords
- screw rod
- bobbin
- sewing machine
- hole
- bobbin case
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Abstract
The invention relates to a bobbin thread tension adjusting device of a sewing machine, which comprises a bobbin case and a cylindrical magnetic steel, and is characterized by further comprising a screw stem; a pivot shaft is arranged on the bobbin case, the pivot shaft and the bobbin case are produced by one-step molding of non-magnetic materials, and a through hole penetrates the pivot shaft and the bobbin case; a screw hole is arranged at the upper end of the through hole, a guide hole is arranged at the lower end, the screw stem is matched with the screw hole, and the cylindrical magnetic steel is matched with the guide hole by sliding; and the lower end of the screw stem is matched with the cylindrical magnetic steel. Due to the adoption of the structure, a central hole of a bobbin thread core is matched with the pivot shaft, and the rotation of the screw stem can adjust the position of the cylindrical magnetic steel in the guide hole and adjust the size of the suction force between the cylindrical magnetic steel and the bobbin thread core, thereby achieving the purpose of adjusting the bobbin thread tension and being convenient to use.
Description
Technical field
The present invention relates to a kind of device of use in sewing machine, especially relate to the tension-adjusting gear of bottom line.
Background technology
Present prior art, a kind of bobbin thread for sewing machine tensioner comprises magnet steel, and in use, magnet steel is arranged in the bobbin case, and the bottom line core is placed on the magnet steel.The bottom line core cooperates with magnet steel, reaches the purpose of bottom line tension.Existing problems are: the tension force of bottom line can not be regulated.
Summary of the invention
The objective of the invention is: a kind of bobbin thread tension adjusting device of sewing machine is provided, and it can regulate the tension force of bottom line, reaches the purpose of the different linings of sewing.
The present invention is achieved in that a kind of bobbin thread tension adjusting device of sewing machine, comprises the magnet steel of bobbin case and cylindricality, and its special character is: also comprise a screw rod;
One pivot is arranged on the bobbin case, and pivot and bobbin case are processed by the non-magnet material one-shot forming, and a through hole connects pivot and bobbin case;
Said through hole upper end is a pilot hole for screw, lower end, and screw rod cooperates with screw, and the magnet steel and the pilot hole of cylindricality are slidingly matched; The screw rod lower end cooperates with the magnet steel of cylindricality.
Described a kind of bobbin thread tension adjusting device of sewing machine, its special character is: said screw rod is processed by metal material, and cooperation is inhaled mutually with the magnet steel of cylindricality in the screw rod lower end.
Described a kind of bobbin thread tension adjusting device of sewing machine, its special part is: said screw rod is processed by plastic material, and the screw rod lower end is fixedly connected with the magnet steel of cylindricality.
A kind of bobbin thread tension adjusting device of sewing machine of the present invention comprises that also a non-magnet material processes screw rod; Have a pivot and bobbin case to be processed by the non-magnet material one-shot forming on the bobbin case, a through hole connects pivot and bobbin case; Said through hole upper end is a pilot hole for screw, lower end, and screw rod cooperates with screw, and the magnet steel and the pilot hole of cylindricality are slidingly matched; The screw rod lower end cooperates with the magnet steel of cylindricality.Because adopt such structure, the centre bore of bottom line core cooperates with pivot, rotating screw bolt is regulated the position of magnet steel in pilot hole of cylindricality, regulates the magnet steel of cylindricality and the size of bottom line wicking power, reaches the purpose of regulating bottom line tension,
Easy to use.
Description of drawings
Fig. 1 is a cutaway view of the present invention.
Fig. 2 is the cutaway view of user mode of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1, a kind of bobbin thread tension adjusting device of sewing machine comprises the magnet steel 1 of bobbin case 2 and cylindricality, also comprises a screw rod 3;
One pivot 21 is arranged on the bobbin case 2, and pivot 21 is processed by the non-magnet material one-shot forming with bobbin case 2, and a through hole connects pivot 21 and bobbin case 2;
Said through hole upper end is a pilot hole 24 for screw 23, lower end, and screw rod 3 cooperates with screw 23, and the magnet steel 1 and the pilot hole 24 of cylindricality are slidingly matched.
Said screw rod 3 is processed by metal material, and cooperation is inhaled mutually with the magnet steel 1 of cylindricality in screw rod 3 lower ends.
Also can be that said screw rod 3 is processed by plastic material, screw rod 3 lower ends be fixedly connected with the magnet steel 1 of cylindricality.
As shown in Figure 2, the present invention in use, the centre bore of bottom line core 4 cooperates with pivot 21 on the bobbin case 2, the lower axial end face of bottom line core 4 cooperates with bobbin case 2.
Above-described only is preferential embodiment of the present invention.Should be pointed out that for the person of ordinary skill of the art under the situation that does not break away from the principle of the invention, can also make some improvement and modification, this also is regarded as protection scope of the present invention.
Claims (3)
1. bobbin thread tension adjusting device of sewing machine comprises it is characterized in that the magnet steel of bobbin case and cylindricality: also comprise a screw rod;
One pivot is arranged on the bobbin case, and pivot and bobbin case are processed by the non-magnet material one-shot forming, and a through hole connects pivot and bobbin case;
Said through hole upper end is a pilot hole for screw, lower end, and screw rod cooperates with screw, and the magnet steel and the pilot hole of cylindricality are slidingly matched; The screw rod lower end cooperates with the magnet steel of cylindricality.
2. a kind of bobbin thread tension adjusting device of sewing machine according to claim 1 is characterized in that: said screw rod is processed by metal material, and cooperation is inhaled mutually with the magnet steel of cylindricality in the screw rod lower end.
3. a kind of bobbin thread tension adjusting device of sewing machine according to claim 1 is characterized in that: said screw rod is processed by plastic material, and the screw rod lower end is fixedly connected with the magnet steel of cylindricality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140112A CN101792958B (en) | 2010-03-31 | 2010-03-31 | Bobbin thread tension adjusting device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010140112A CN101792958B (en) | 2010-03-31 | 2010-03-31 | Bobbin thread tension adjusting device of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101792958A CN101792958A (en) | 2010-08-04 |
| CN101792958B true CN101792958B (en) | 2012-10-03 |
Family
ID=42585863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010140112A Expired - Fee Related CN101792958B (en) | 2010-03-31 | 2010-03-31 | Bobbin thread tension adjusting device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101792958B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019912A1 (en) * | 1979-05-23 | 1980-11-27 | Janome Sewing Machine Co Ltd | UNDER THREAD TENSIONING DEVICE FOR A SEWING MACHINE |
| US4429649A (en) * | 1980-09-26 | 1984-02-07 | Janome Sewing Machine Industry Co., Ltd. | Assembly for lower thread tension adjustment of sewing machine |
| CN1176325A (en) * | 1996-05-16 | 1998-03-18 | 重机公司 | Bobbin casing and under-thread bobbin for sewing machine |
| CN1189550A (en) * | 1997-01-29 | 1998-08-05 | 株式会社广濑制作所 | Rotary hook for sewing machiens |
| DE102007005314A1 (en) * | 2006-02-02 | 2007-09-13 | Juki Corp., Chofu | Thread tightening device for sewing machine, has spring disk bearing holding ends of drive axle on side that is conveniently detached from tightening disks that hold thread between pulleys, where permanent magnets are fastened to axle |
| CN101624759A (en) * | 2009-08-21 | 2010-01-13 | 张章生 | Computer sewing machine capable of controlling thread end length |
-
2010
- 2010-03-31 CN CN201010140112A patent/CN101792958B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3019912A1 (en) * | 1979-05-23 | 1980-11-27 | Janome Sewing Machine Co Ltd | UNDER THREAD TENSIONING DEVICE FOR A SEWING MACHINE |
| US4429649A (en) * | 1980-09-26 | 1984-02-07 | Janome Sewing Machine Industry Co., Ltd. | Assembly for lower thread tension adjustment of sewing machine |
| CN1176325A (en) * | 1996-05-16 | 1998-03-18 | 重机公司 | Bobbin casing and under-thread bobbin for sewing machine |
| CN1189550A (en) * | 1997-01-29 | 1998-08-05 | 株式会社广濑制作所 | Rotary hook for sewing machiens |
| DE102007005314A1 (en) * | 2006-02-02 | 2007-09-13 | Juki Corp., Chofu | Thread tightening device for sewing machine, has spring disk bearing holding ends of drive axle on side that is conveniently detached from tightening disks that hold thread between pulleys, where permanent magnets are fastened to axle |
| CN101624759A (en) * | 2009-08-21 | 2010-01-13 | 张章生 | Computer sewing machine capable of controlling thread end length |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101792958A (en) | 2010-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100804 Assignee: Zhongshan Huilong Electric Appliances Co., Ltd. Assignor: Zhu Houlin Contract record no.: 2015440000525 Denomination of invention: Bobbin thread tension adjusting device of sewing machine Granted publication date: 20121003 License type: Exclusive License Record date: 20150807 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20180331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |