Needle threading device

Abstract

The utility model belongs to the technical field of sewing machine auxiliary tools, and particularly relates to a needle threading device which comprises a positioning piece, a first positioning face used for abutting against the side face of a sewing needle is arranged on one side of the positioning piece, and a positioning seat is arranged on the first positioning face and internally provided with a positioning groove. The positioning seat is also provided with a second positioning surface which is propped against the sewing needle mounting seat up and down; the first positioning face is further provided with a threading hole located in one side of the positioning seat, the sewing machine further comprises a threading piece arranged on the positioning piece in a sliding mode, and the threading piece is opposite to the threading hole and used for enabling the threading piece to penetrate through the threading hole and enter a sewing needle eye located in the first positioning face through sliding of the threading piece. Due to the fact that the threading hole is formed in the first positioning face, the positioning base and the positioning groove are integrally located above the first positioning face, the threading hole and the positioning base do not interfere with each other, and a manufacturer can properly adjust the size of the positioning groove so that the size of the positioning groove can be better matched with the size of an existing sewing needle.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewing machine auxiliary tools, and specifically refers to a needle threader. Background Technology

[0002] Threading is frequently required during the use of a sewing machine, such as when changing the thread or when the thread breaks. When threading, the operator needs to insert the thread into the eye of the sewing needle. Because the eye of the sewing needle is small, threading is very time-consuming and laborious, especially for operators with poor eyesight. It can take a very long time to complete, and there is also a risk of the operator being pricked or scratched by the needle during the process.

[0003] Chinese utility model 2022216709446 discloses a threader, including a positioning member and a threading member. The positioning member has an upward-facing positioning surface for contacting the lower end face of a sewing needle mounting base, and a positioning groove for engaging with a sewing needle. The front end of the threading member has a threading portion for passing through the eye of the sewing needle, and the threading member is configured such that the threading portion can move linearly back and forth relative to the positioning member. When the threading portion is at the rear stop point of the linear movement, it is located behind the positioning groove. When the threading portion is at the front stop point of the linear movement, the front end of the threading portion extends forward into or through the positioning groove.

[0004] Since the threading component slides outward from the positioning groove to thread the needle, the threading component itself has a certain volume. In order to accommodate the threading component, the bottom area of ​​the positioning groove is relatively large, which affects the accurate positioning of the positioning groove and the sewing needle mounting seat. Summary of the Invention

[0005] The purpose of this invention is to provide a needle threader with more accurate positioning.

[0006] The purpose of this utility model is achieved as follows:

[0007] A needle threader includes a positioning member, one side of which has a first positioning surface for abutting against the side of a sewing needle. The first positioning surface has a positioning seat with a positioning groove. The positioning seat also has a second positioning surface that abuts against the sewing needle mounting seat vertically. The first positioning surface also has a threading hole located on one side of the positioning seat. The device also includes a threading member that is slidably disposed on the positioning member. The threading member is opposite to the threading hole and is used to allow the threading member to pass through the threading hole and enter the eye of the sewing needle located on the first positioning surface by sliding.

[0008] Furthermore, the positioning seat includes a left seat body and a right seat body respectively arranged on the left and right sides, and the positioning groove is formed between the left seat body and the right seat body; the second positioning surface is provided on the end of the left seat body and the right seat body opposite to the sewing needle mounting seat.

[0009] Furthermore, the left and right seats are provided with a number of partitions in sequence, which are used to divide the positioning seat into several segments.

[0010] Furthermore, the positioning component is hollow, and a driving slider is provided in the positioning component. One end of the driving slider is provided with the threading component, which is used to drive the threading component by driving the driving slider to move.

[0011] Furthermore, the positioning component also has a sliding strip for removing the thread, and the sliding strip is equipped with a thread remover. The positioning component also has a thread removal hole for the thread remover to extend outward.

[0012] Furthermore, the detachment hole and the threading hole are located on the same side of the positioning member.

[0013] Furthermore, the positioning component is provided with two guide grooves; the positioning component is provided with two actuating blocks, and the actuating blocks are connected to connecting pins passing through the guide grooves. The two actuating blocks are respectively connected to the wire-removing slider and the driving slider through the connecting pins.

[0014] Furthermore, the positioning component is also provided with a reset component, one end of which is connected to the positioning component and the other end is connected to the drive slider and the drive slider, which is used to give the drive slider and the wire removal slider a tendency to move into the positioning component.

[0015] Furthermore, the positioning member is provided with a first strip-shaped groove, and a connecting pin is provided through the first strip-shaped groove. One end of the connecting pin is connected to the driving slider, and the other end is connected to a toggle block located outside the positioning member.

[0016] Furthermore, the two ends of the actuating block are provided with folded edges opposite to the side of the positioning member, and a guide component is provided between the folded edges and the side of the positioning member;

[0017] The guide assembly includes a second strip groove disposed on the side of the positioning member and a protrusion fixed on the folded edge.

[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0019] 1. In this patent, since the threading hole is set on the first positioning surface, and the positioning seat and positioning groove are located above the first positioning surface, the threading hole and the positioning seat do not interfere with each other. The manufacturer can adjust the size of the positioning groove appropriately to make it more suitable for the size of existing sewing needles, thereby providing users with a better user experience.

[0020] 2. In this patent, the guide component is provided on the folded edge of the toggle block, which makes the entire toggle block run more smoothly. At the same time, while the toggle block is connected to the drive slider through the connecting pin, the structure of the connecting pin is used to slide and limit the movement of the drive slider, making its sliding more stable.

[0021] 3. This patent uses a spring to automatically reset the device after the user manually removes the threading component to complete the threading process, making it more convenient for the user. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Example 1.

[0023] Figure 2 This is a cross-sectional schematic diagram of Example 1.

[0024] Figure 3 This is an exploded schematic diagram of Example 1.

[0025] Figure 4 This is a schematic diagram of the toggle block in Example 1.

[0026] Figure 5 This is a schematic diagram of the sewing needle mounting base in Example 1.

[0027] Figure 6 This is a schematic diagram of the structure of Example 2.

[0028] Figure 7 This is an exploded schematic diagram of Example 2.

[0029] Figure 8 This is a schematic diagram of the structure of Example 3.

[0030] Figure 9 This is a structural schematic diagram of Example 4.

[0031] Figure 10 This is a front view of Example 5.

[0032] Figure 11 This is a reverse schematic diagram of Example 5.

[0033] The meaning of the labels in the diagram:

[0034] 1. Positioning component; 11. First positioning surface; 12. Positioning seat; 121. Left seat body; 122. Right seat body; 123. Partition part; 13. Positioning groove; 14. Second positioning surface; 15. Wire hole; 16. Fixing slot; 17. End cap; 18. First strip groove; 19. Second strip groove;

[0035] 2. Threading component; 21. Drive slider; 22. Connecting pin; 23. Actuating block; 231. Folded edge; 232. Protrusion;

[0036] 3. Reset component;

[0037] 4. Wire disconnector; 41. Wire disconnect hole; 42. Wire disconnect slider; 43. Guide groove;

[0038] 5. Sewing needle; 6. Sewing needle holder; 7. Sewing needle eye Detailed Implementation

[0039] The present invention will be further described below with reference to specific embodiments:

[0040] Example 1:

[0041] A needle threader includes a positioning member 1. One side of the positioning member 1 is provided with a first positioning surface 11 for abutting against the side of a sewing needle 5. A positioning seat 12 is provided on the first positioning surface 11, and a positioning groove 13 is provided in the positioning seat 12. A second positioning surface 14 is also provided on the positioning seat 12 for abutting against the sewing needle mounting seat 6. A threading hole 15 is also provided on the first positioning surface 11, located on one side of the positioning seat 12. The device also includes a threading member 2 that is slidably disposed on the positioning member 1. The threading member 2 is opposite to the threading hole 15 and is used to slide the threading member 2 through the threading hole 15 and into the eye of the sewing needle 7 located on the first positioning surface 11.

[0042] like Figure 1 , 3 As shown, the positioning component 1 in this patent is generally rectangular. For ease of assembly, the positioning component 1 is open on both the left and right sides, with fixing slots 16 formed on it. An end cap 17 is fixed through these fixing slots 16. In this embodiment, there are two end caps 17, located at the beginning and end ends of the positioning component 1, respectively. Each end cap 17 has a fixing block that fits into the fixing slot 16. The fixing block is interference-fitted into the fixing slot 16 to fix the end cap 17 to the beginning and end ends of the positioning component 1. The positioning component 1 in this patent is hollow, thus the end cap 17 structure facilitates the manufacturer in configuring relevant structures within the positioning component 1.

[0043] The surface of the end cap 17 is formed with the first positioning surface 11, such as Figure 3-5As shown, the positioning seat 12 in this patent includes a left seat body 121 and a right seat body 122 respectively arranged on the left and right sides. The cross-sections of the left seat body 121 and the right seat body 122 are trapezoidal, and they are respectively arranged on the first positioning surface 11. One end of the left seat body 121 and the right seat body 122 is flush with the end of the first positioning surface 11, and is used to face the sewing needle mounting seat 6, and the second positioning surface 14 is formed thereon. The positioning groove 13 is formed on the left seat body 121 and the right seat body 122. The thread hole 15 is located below the positioning seat 12 and is opened on the horizontal first positioning surface 11; see reference. Figure 1 In use, the user places the first positioning surface 11 against the sewing needle 5 and the second positioning surface 14 against the sewing needle mounting base 6. At this time, the sewing needle 5 is positioned in the positioning groove 13 and the eye of the sewing needle 7 is positioned in front of the threading hole 15 on the first positioning surface 11. Then, the threading component 2 is driven to work through the threading hole 15 and enter the eye of the sewing needle 7 to achieve threading.

[0044] Since the thread hole 15 is set on the first positioning surface 11, and the positioning seat 12 and positioning groove 13 are located above the first positioning surface 11, the thread hole 15 and the positioning seat 12 do not interfere with each other. The manufacturer can adjust the size of the positioning groove 13 appropriately to make it more suitable for the size of the existing sewing needle 5, so that the user can have a better user experience.

[0045] Furthermore, the left seat 121 and the right seat 122 are provided with a plurality of partition portions 123 in sequence, the partition portions 123 being used to divide the positioning seat 12 into several segments. For example... Figure 1 As shown, the entire positioning seat 12 is divided into three sections, upper and lower, by the partition 123, which can save material for the positioning seat 12 and facilitate mold forming.

[0046] Furthermore, such as Figure 1 , 2 As shown, the positioning component 1 includes a driving slider 21, and one end of the driving slider 21 is provided with the threading component 2, which is used to drive the threading component 2 by moving the driving slider 21. (Specifically, this is combined with...) Figure 2 , 4As shown, the driving slider 21 is square, and the threading component 2 is specifically a needle fixed to one end of the driving slider 21, with a barb on the needle for threading. To facilitate the driving of the driving slider 21, this patent provides a first strip-shaped groove 18 on the positioning component 1, allowing communication between the inside and outside of the positioning component 1. A connecting pin 22 passes through the first strip-shaped groove 18, with one end connected to the driving slider 21 and the other end connected to an actuating block 23 located outside the positioning component 1. The cross-section of the actuating block 23 is U-shaped, and its two ends are provided with folded edges 231 opposite to the side of the positioning member 1. The folded edges 231 allow the entire actuating block 23 to be held outside the positioning member 1. A guide component is provided between the folded edges 231 and the side of the positioning member 1. The guide component can be a slide rail structure set between the two. In this patent, a second strip groove 19 is provided on the side of the positioning member 1, and a protrusion 232 is fixed on the folded edge 231. The protrusion 232 slides within the second strip groove 19.

[0047] During operation, the user grasps the actuating block 23 and places the first positioning surface 11 on one side of the positioning member 1 against the sewing needle 5. The user then applies force to the actuating block 23, causing the positioning member 1 to slide within the actuating block 23. This causes the drive slider 21, connected to the actuating block 23, to move within the positioning member 1, allowing the threading member 2 to pass through the threading hole 15. Because the actuating block 23 has a guide component on its folded edge 231, the entire actuating block 23 operates more smoothly. Simultaneously, while the actuating block 23 is connected to the drive slider 21 via the connecting pin 22, the structure of the connecting pin 22 limits the movement of the drive slider 21, making its movement more stable.

[0048] Furthermore, the positioning component 1 also includes a reset component 3. One end of the reset component 3 is connected to the positioning component 1, and the other end is connected to the drive slider 21, which incentivizes the drive slider 21 to move inward into the positioning component 1. Specifically, the reset component 3 is a spring, one end of which is fixed to the positioning component 1. This spring automatically resets the component after the user manually removes the threading component 2 to complete the threading process, making it more convenient for the user.

[0049] Furthermore, a slidable thread-removing slider 42 is also provided inside the positioning member 1, and a thread-removing tool 4 is provided on the thread-removing slider. A thread-removing hole 41 for the thread-removing tool 4 to extend outward is also provided on the positioning member 1. For example... Figure 2 , 3As shown, the thread-removing slider 42 is located on the other side of the positioning member 1, and the thread-removing hole 41 is formed on the end face of the other side of the positioning member 1. The thread-removing slider 42 adopts a structure that is basically the same as the driving slider 21, and is driven from the outside to work. The thread remover 4 can be used to remove the sewing thread from clothing. The manufacturer integrates the thread remover 4 into the positioning member 1 in this patent, making good use of the extra space on the positioning member 1, which can better meet the different needs of users.

[0050] Example 2:

[0051] Most of the structure in this embodiment is the same as in embodiment 1. The difference is that the detachment hole 41 and the threading hole 15 are located on the same side of the positioning member 1. Correspondingly, the positioning member 1 is provided with two guide grooves 43; the positioning member 1 is provided with two actuating blocks 23, and the actuating blocks 23 are connected to connecting pins 22 passing through the guide grooves 43. The two actuating blocks 23 are respectively connected to the detachment slider 42 and the drive slider 21 through the connecting pins 22. Figure 6 , 7 As shown, the positioning component 1 in this embodiment is rectangular in shape. Inside, there are slides separated by a partition, and fixing slots 16 are formed on both sides. The end cap 17 is fixed in the fixing slot 16. The end cap 17 on one side is provided with the detachment hole 41 and the threading hole 15 on the top and bottom respectively.

[0052] At this time, the guide groove 43 is formed on one side of the positioning member 1, and the two guide grooves 43 are arranged vertically and respectively opposite to the two slides inside the positioning member 1. The wire removal slider 42 and the drive slider 21 are respectively located in the two slides and opposite to the guide grooves 43, and are connected by the connecting pin 22. At the same time, a reset member 3 is provided on the wire removal slider 42 and the drive slider 21. The reset member 3 is specifically a spring, and its other end is connected to the end cap on the other side of the positioning member 1.

[0053] During operation, the suture remover 4 and the needle insert 2 can be driven simply by sliding the two toggle blocks 23. Since the suture removal hole 41 and the suture insert 15 are located on the same side of the positioning member 1, the suture remover 4 and the needle insert 2 will not face the user during use, making it safer to use and preventing accidental operation that could cause the suture remover 4 or the needle insert 2 to extend and puncture the user.

[0054] Example 3:

[0055] like Figure 8 As shown, most of the structures in this embodiment are the same as those in embodiment 2. The difference is that the detachment slider 42 is disposed on the upper side of the positioning member 1, while the drive slider 21 is located on the side of the positioning member 1.

[0056] Example 4:

[0057] like Figure 9 As shown, most of the structures in this embodiment are the same as those in embodiment 2. The difference is that the detachment slider 42 is disposed on the upper side of the positioning member 1, while the drive slider 21 is located on the lower side of the positioning member 1.

[0058] Example 5:

[0059] like Figure 10 , 11 As shown, most of the structures in this embodiment are the same as those in embodiment 2. The difference is that the detachment slider 42 and the drive slider 21 are respectively disposed on the left and right sides of the positioning member 1.

[0060] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

[0061] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0062] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0063] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A needle threader characterized by: The system includes a positioning component (1), one side of which is provided with a first positioning surface (11) for abutting against the side of a sewing needle (5). A positioning seat (12) is provided on the first positioning surface (11), and a positioning groove (13) is provided in the positioning seat (12). A second positioning surface (14) is also provided on the positioning seat (12) for abutting against the sewing needle mounting seat (6) vertically. A threading hole (15) located on one side of the positioning seat (12) is also provided on the first positioning surface (11). The system also includes a threading component (2) that is slidably disposed on the positioning component (1). The threading component (2) is opposite to the threading hole (15) and is used to allow the threading component (2) to pass through the threading hole (15) and enter the eye of the sewing needle located on the first positioning surface (11) by sliding the threading component (2).

2. A needle threader according to claim 1, wherein: The positioning seat (12) includes a left seat body (121) and a right seat body (122) respectively arranged on the left and right sides, and the positioning groove (13) is formed between the left seat body (121) and the right seat body (122); the second positioning surface (14) is provided on the end of the left seat body (121) and the right seat body (122) opposite to the sewing needle mounting seat (6).

3. A needle threader according to claim 2, wherein: The left seat (121) and the right seat (122) are provided with a number of partitions (123) in sequence, and the partitions (123) are used to divide the positioning seat (12) into several segments.

4. The needle threader of claim 1 wherein: The positioning component (1) is hollow and a driving slider (21) is provided in the positioning component (1). One end of the driving slider (21) is provided with the threading component (2), which is used to drive the threading component (2) by driving the driving slider (21) to move.

5. A needle threader according to claim 4, wherein: The positioning component (1) is also provided with a slidable wire removal slider (42), and the wire removal slider (42) is provided with a wire removal tool (4). The positioning component (1) is also provided with a wire removal hole (41) for the wire removal tool (4) to extend outward.

6. A needle threader according to claim 5, wherein: The detachment hole (41) and the threading hole (15) are located on the same side of the positioning member (1).

7. A needle threader according to claim 5 or 6, wherein: The positioning component (1) is provided with two guide grooves (43); the positioning component (1) is provided with two actuating blocks (23), and the actuating blocks (23) are connected to connecting pins (22) passing through the guide grooves (43). The two actuating blocks (23) are respectively connected to the wire disconnecting slider (42) and the driving slider (21) through the connecting pins (22).

8. A needle threader according to claim 7, wherein: The positioning component (1) is also provided with a reset component (3). One end of the reset component (3) is connected to the positioning component (1), and the other end is connected to the drive slider (21) and the drive slider (21), which is used to give the drive slider (21) and the de-threading slider (42) a tendency to move into the positioning component (1).

9. A needle threader according to claim 4, wherein: The positioning component (1) is provided with a first strip groove (18), and a connecting pin (22) is provided through the first strip groove (18). One end of the connecting pin (22) is connected to the driving slider (21), and the other end is connected to a toggle block (23) located outside the positioning component (1).

10. A needle threader according to claim 9, wherein: The two ends of the actuating block (23) are provided with folded edges (231) opposite to the side of the positioning member (1), and a guide component is provided between the folded edges (231) and the side of the positioning member (1); The guide assembly includes a second strip groove (19) disposed on the side of the positioning member (1) and a protrusion (232) fixed on the fold (231).

Images