CN2663477Y - Four-slot sewing machine needle - Google Patents
Four-slot sewing machine needle Download PDFInfo
- Publication number
- CN2663477Y CN2663477Y CN 03237770 CN03237770U CN2663477Y CN 2663477 Y CN2663477 Y CN 2663477Y CN 03237770 CN03237770 CN 03237770 CN 03237770 U CN03237770 U CN 03237770U CN 2663477 Y CN2663477 Y CN 2663477Y
- Authority
- CN
- China
- Prior art keywords
- groove
- sewing machine
- needle
- grooves
- line
- 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.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a four-groove sewing machine needle which comprises a needle rod with a four-grooves X-shapedd structure, while the upper groove is a deep principle groove used for imbedding thread, the lower groove is a shallow and smooth assistant groove, and the left and the right grooves are rough and irregular concave arc grooves. The utility model has advantages that the thread does not easily break, the needle does not easily bend and the survival life is long, and is wildly used in sewing art.
Description
One, technical field
The utility model relates to Sewing needles, relates in particular to a kind of four line of rabbet joint needle of sewing machine.
Two, background technology
Sewing machines has been made huge contribution for industrial development, people's life, along with the development of society and advancing by leaps and bounds of sewing industry, traditional single line of rabbet joint needle of sewing machine is because its parting face is that U-shaped dissymmetrical structure and stress are concentrated, the needs of incompatibility Modern High-Speed, ultra-high speed sewing machine, often because of heating, broken string, looper phenomenon, cause Sewing needles inefficacy, life-span weak point, influence sewing quality, cause economic loss.
Three, summary of the invention
The technical problems to be solved in the utility model provides a kind of four line of rabbet joint needle of sewing machine that improved, it can overcome and avoid the shortcoming or the weak point of above-mentioned prior art, and adapt to the application of Modern High-Speed, ultrahigh speed industrial sewing well, do not break, not looper, long service life.
The technical scheme that the utility model is dealt with problems is a kind of four line of rabbet joint needle of sewing machine, comprises shank.Described shank is four grooves, X-shaped structure, and groove is the darker major trough of sunkening cord on it, and following groove is shallow slightly, smooth auxiliary tank, and left and right sides groove is coarse, irregular indent radian groove.
Wherein, described groove down is the bottom land circular arc, goes up the little structure in the big end.
Wherein, the periphery of described upper and lower, left and right four grooves is smooth arc transition.
The utility model has the following advantages and beneficial effect compared with prior art:
1, improved friction and radiating condition, reduced the rubbing surface of 1/4-1/3, increased area of dissipation 1/10-1/5 than prior art;
2, because four grooves of near symmetrical are arranged, reduce the looper phenomenon that temperature rise causes in heat treatment and long-term the use greatly, prolonged the service life of Sewing needles;
3, improved the comprehensive antifriction cooling-down effect of Sewing needles, both alleviated at a high speed, seam is thick, the shank too fast too high problem that heats up in the ultrahigh speed sewing, makes the temperature rise in use of chemical fibre sewing thread keep normal again, reduces outage greatly.
4, the technology auxiliary tank improved shank surface plating coating in conjunction with fastness, also lay the foundation for process of surface treatment, the material that adopts any low-friction coefficient.
Four, description of drawings
Accompanying drawing is the utility model structural representation.
Five, the specific embodiment
Referring to accompanying drawing, a kind of four line of rabbet joint needle of sewing machine comprise shank 5, described shank is four groove structures, and groove is the darker major trough of sunkening cord on it, and following groove is shallow slightly, smooth auxiliary tank 2, left and right sides groove is coarse, irregular indent radian groove 4,5, and the parting face of shank 5 is the X-shaped structure.1, the periphery of 2,3,4 grooves is smooth arc transition.
Claims (3)
1, a kind of four line of rabbet joint needle of sewing machine comprise shank, it is characterized in that described shank is four groove X-shaped structures, and groove is the darker major trough of sunkening cord on it, and following groove is shallow slightly, smooth auxiliary tank, and left and right groove is coarse, irregular indent radian groove.
2, four line of rabbet joint needle of sewing machine according to claim 1 is characterized in that described groove down is the bottom land circular arc, go up minor structure of the big end.
3, four line of rabbet joint needle of sewing machine according to claim 1 is characterized in that the periphery of described upper and lower, left and right four grooves is smooth arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237770 CN2663477Y (en) | 2003-09-30 | 2003-09-30 | Four-slot sewing machine needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03237770 CN2663477Y (en) | 2003-09-30 | 2003-09-30 | Four-slot sewing machine needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663477Y true CN2663477Y (en) | 2004-12-15 |
Family
ID=34326605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03237770 Expired - Fee Related CN2663477Y (en) | 2003-09-30 | 2003-09-30 | Four-slot sewing machine needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663477Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4015692A1 (en) * | 2020-12-16 | 2022-06-22 | Groz-Beckert KG | Sewing machine needle with recess |
-
2003
- 2003-09-30 CN CN 03237770 patent/CN2663477Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4015692A1 (en) * | 2020-12-16 | 2022-06-22 | Groz-Beckert KG | Sewing machine needle with recess |
| WO2022128295A1 (en) * | 2020-12-16 | 2022-06-23 | Groz-Beckert Kg | Sewing machine needle having a recess |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |