CN220202187U - Thread take-up lever structure of sewing machine - Google Patents
Thread take-up lever structure of sewing machine Download PDFInfo
- Publication number
- CN220202187U CN220202187U CN202320709810.9U CN202320709810U CN220202187U CN 220202187 U CN220202187 U CN 220202187U CN 202320709810 U CN202320709810 U CN 202320709810U CN 220202187 U CN220202187 U CN 220202187U
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- Prior art keywords
- lever
- take
- thread
- threading hole
- thread take
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- 238000009958 sewing Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a part in a sewing machine, and discloses a thread take-up lever structure of the sewing machine, which comprises a thread take-up lever (1), wherein the end part of the thread take-up lever (1) is provided with a threading hole (11) penetrating through the upper end surface and the lower end surface of the thread take-up lever; the end part of the thread take-up lever (1) is provided with an outwards-protruding thread take-up part (13), the threading hole (11) is arranged on the thread take-up part, the threading hole (11) is a triangular hole, the projection shape of the threading hole is a regular triangle, and the three end corners of the threading hole (11) are all arc surfaces (12). Because the threading hole on the take-up lever is the triangle threading hole, when the take-up lever moves to the upper end in-process, unnecessary line volume retrieves fast, and when the take-up lever moves to the lower extreme, the supply line volume becomes great, has guaranteed the demand of colluding line mechanism thread passing volume, provides the line volume with thread passing volume assorted better for collude line mechanism's thread passing resistance is less, and the line volume of sending of face line and the pulling force of face line remain stable when the take-up lever moves to different positions, and the line trace is stable, no fold in the making of clothing.
Description
Technical Field
The utility model relates to a component in a sewing machine, in particular to a thread take-up lever structure of the sewing machine.
Background
In the sewing process of the clothing, the machine needle drives the suture to be pricked into the product to be sewn, after the thread hooking mechanism hooks the upper thread, the thread hooking mechanism releases the upper thread, after the upper thread is released, the upper thread is tightened through the thread taking-up lever, and the upper thread and the bottom thread are interwoven to form a stitch, so that the sewing of the article is completed.
The threading hole on the existing thread take-up lever is a round hole or an elliptical hole, for example, a thread take-up lever structure of a sewing machine with the application number of 201820934836.2, and the thread take-up lever structure ensures that the thread passing change of the thread take-up lever in the moving process is not great, the requirement of the thread passing amount of a thread hooking mechanism cannot be ensured, the thread amount matched with the thread passing amount cannot be well provided, and the thread passing resistance of the thread hooking mechanism is larger.
Disclosure of Invention
The utility model provides a thread take-up lever structure of a sewing machine aiming at the defects in the prior art.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
a take-up lever structure of a sewing machine comprises a take-up lever, wherein the end part of the take-up lever is provided with a threading hole penetrating through the upper end surface and the lower end surface of the take-up lever; the threading hole is a triangular hole, and three end corners of the threading hole are all arc surfaces.
Preferably, the projected shape of the threading hole is a regular triangle.
Preferably, the thread take-up lever has an outwardly projecting thread take-up portion at an end thereof, and the thread threading hole is provided in the thread take-up portion.
Preferably, the side edge of the thread take-up part comprises a first side face, a second side face and an arc-shaped face, one end of the arc-shaped face is connected with the first side face, the other end of the arc-shaped face is connected with the second side face, and an included angle between the first side face and the second side face is 45 degrees.
Preferably, the inner side wall of the threading hole comprises a first inner wall and a second inner wall, the first inner wall is parallel to the first side surface, and the vertical distance from the first inner wall to the first side surface is a; the second inner wall is parallel to the second side, and the vertical distance from the second inner wall to the second side is b, a=b.
The utility model has the remarkable technical effects due to the adoption of the technical scheme:
because the threading hole on the take-up lever is the triangle threading hole, when the take-up lever moves to the upper end in-process, unnecessary line volume retrieves fast, and when the take-up lever moves to the lower extreme, the supply line volume becomes great, has guaranteed the demand of colluding line mechanism thread passing volume, provides the line volume with thread passing volume assorted better for collude line mechanism's thread passing resistance is less, and the line volume of sending of face line and the pulling force of face line remain stable when the take-up lever moves to different positions, and the line trace is stable, no fold in the making of clothing.
Drawings
Fig. 1 is a schematic view of the structure of the present utility model in a first position state.
Fig. 2 is a schematic view of the structure of the present utility model in a second position state.
Fig. 3 is a schematic view of the structure of the present utility model in a third position state.
The names of the parts indicated by the numerical reference numerals in the above drawings are as follows:
1-take-up lever, 11-threading hole, 12-arc surface, 13-take-up portion, 111-first inner wall, 112-second inner wall, 131-first side, 132-second side, 133-arc surface.
Detailed Description
The utility model is described in further detail below with reference to figures 1-3 and examples.
Example 1
The thread take-up lever structure of a sewing machine comprises a thread take-up lever 1, wherein the end part of the thread take-up lever 1 is provided with a thread threading hole 11 penetrating through the upper end surface and the lower end surface of the thread take-up lever; the threading hole 11 is a triangular hole, and the three end corners of the threading hole 11 are all arc surfaces 12. Because the threading hole on the take-up lever 1 is the triangle threading hole, when the take-up lever 1 moves to the upper end in-process, unnecessary line volume is retrieved fast, and when the take-up lever 1 moves to the lower extreme, the supply volume becomes great, has guaranteed the demand of the line volume of colluding line mechanism, provides the line volume with line volume assorted better for the line resistance of crossing of colluding line mechanism is less, and the line volume of sending of upper thread and the pulling force of upper thread remain stable when the take-up lever 1 moves to different positions, and the line is stable in the making of clothing, does not have the fold.
The thread take-up lever 1 has a thread take-up portion 13 protruding outward at an end thereof, and the thread hole 11 is provided in the thread take-up portion 13.
The side edge of the thread take-up part 13 comprises a first side surface 131, a second side surface 132 and an arc surface 133, one end of the arc surface 133 is connected with the first side surface 131, the other end of the arc surface 133 is connected with the second side surface 132, and an included angle between the first side surface 131 and the second side surface 132 is 45 degrees.
Example 2
Embodiment 2 has substantially the same features as embodiment 1 except that the projected shape of the threading hole 11 is a regular triangle.
Example 3
Embodiment 3 is substantially the same as embodiment 1 or 2, except that the inner sidewall of the threading hole 11 includes a first inner wall 111 and a second inner wall 112, the length of the first inner wall 111 is equal to the length of the second inner wall 112, the first inner wall 111 is parallel to the first side 131, and the vertical distance from the first inner wall 111 to the first side 131 is a; the second inner wall 112 is parallel to the second side 132, and a vertical distance from the second inner wall 112 to the second side is b, a=b.
Claims (4)
1. The thread take-up lever structure of the sewing machine comprises a thread take-up lever (1), wherein the end part of the thread take-up lever (1) is provided with a threading hole (11) penetrating through the upper end surface and the lower end surface of the thread take-up lever; the method is characterized in that: the end part of the thread take-up lever (1) is provided with an outwards-protruding thread take-up part (13), the threading hole (11) is arranged on the thread take-up part (13), the threading hole (11) is a triangular hole, and three end corners of the threading hole (11) are all arc surfaces (12).
2. The take-up lever structure of a sewing machine according to claim 1, wherein: the projection shape of the threading hole (11) is a regular triangle.
3. The take-up lever structure of a sewing machine according to claim 1, wherein: the side of the thread take-up part (13) comprises a first side face (131), a second side face (132) and an arc-shaped face (133), one end of the arc-shaped face (133) is connected with the first side face (131), the other end of the arc-shaped face is connected with the second side face (132), and an included angle between the first side face (131) and the second side face (132) is 45 degrees.
4. A take-up lever structure of a sewing machine according to claim 3, wherein: the inner side wall of the threading hole (11) comprises a first inner wall (111) and a second inner wall (112), the first inner wall (111) is parallel to the first side surface (131), and the vertical distance from the first inner wall (111) to the first side surface (131) is a; the second inner wall (112) is parallel to the second side (132), and the vertical distance from the second inner wall (112) to the second side is b, a=b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320709810.9U CN220202187U (en) | 2023-03-29 | 2023-03-29 | Thread take-up lever structure of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320709810.9U CN220202187U (en) | 2023-03-29 | 2023-03-29 | Thread take-up lever structure of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220202187U true CN220202187U (en) | 2023-12-19 |
Family
ID=89154870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320709810.9U Active CN220202187U (en) | 2023-03-29 | 2023-03-29 | Thread take-up lever structure of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220202187U (en) |
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2023
- 2023-03-29 CN CN202320709810.9U patent/CN220202187U/en active Active
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