A pulling piece auxiliary tool, a zipper pulling piece and a zipper puller

Abstract

The utility model provides a kind of pull tab auxiliary tool, zipper pull tab and zipper puller, pull tab auxiliary tool includes the tool connecting piece for and the installation hole of pull tab main part engagement, and the tool holding piece for user holding;Tool connecting piece is made of hard resin, tool connecting piece includes oppositely arranged tool shoulder and tool head along the thickness direction of pull tab main part, and the tool column portion being connected between tool shoulder and tool head, tool shoulder, tool head and tool column portion are formed with annular groove;Tool holding piece is made of soft resin, tool holding piece is fixed to tool shoulder;Tool shoulder and tool holding piece can all be penetrated from installation hole. Tool connecting piece has certain hardness, not easy to deform, ensure the engagement reliability of tool connecting piece and the installation hole of pull tab main part. Tool holding piece has better deformation ability and softness, convenient installation, and can provide better holding hand feeling to user, easy to grip.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, and in particular to a zipper puller, a zipper puller including the zipper puller, and a zipper puller including the zipper puller. Background Technology

[0002] Zippers are widely used in everyday items such as clothing, bags, tents, and bedding, enabling the merging or separation of items. Typically, a zipper consists of a pair of fabric strips, teeth fixed to the inner edges of each strip, and a zipper pull. The zipper pull includes a main body mounted on the teeth and a pull tab mounted on its surface. By pulling the pull tab along the length of the zipper, the teeth engage or disengage, thus opening or closing the zipper. Furthermore, some existing zippers include a pull tab auxiliary device. One end of this auxiliary device is attached to the zipper pull tab, which enhances the ease of pulling the zipper pull and adds to the zipper's design aesthetics.

[0003] Prior art: The zipper puller disclosed in Chinese invention patent CN110811084B has a puller auxiliary device, which includes a longitudinally elongated puller auxiliary part with a shoulder at one end, a head disposed opposite to the shoulder, and a neck connecting the shoulder and the head. When the puller auxiliary device is installed in the puller puller of the zipper puller, the puller auxiliary part of the puller auxiliary device is inserted into the mounting hole of the puller puller from the back side. When the puller auxiliary part is fully inserted from the front side of the mounting hole, the annular groove formed by the shoulder, head and neck engages with the periphery of the mounting hole, and the head abuts against the back side of the puller puller. The puller auxiliary device is fixedly installed on the puller puller through the concave-convex structure. The pull tab assist device is a one-piece molded part made of a single material. This single material means that it cannot simultaneously have a good grip and reliable engagement. If the pull tab assist device is to have a good grip, it will be made of a softer material, which will result in unreliable engagement with the pull tab, and the head will easily detach from the mounting hole of the pull tab. If the pull tab assist device is to have good engagement reliability, it will be made of a harder material, which will make the part for the user to hold very hard, resulting in a poor grip and difficulty in holding it. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide a pull tab auxiliary device that can provide a better grip and ensure reliable engagement with the mounting hole of the pull tab body.

[0005] To achieve the above objectives, this utility model provides a pull tab auxiliary device, including a device connector for engaging with the mounting hole of the pull tab body, and a device grip for the user to hold.

[0006] The device connector is made of hard resin. The device connector includes a device shoulder and a device head that are disposed opposite to each other along the thickness direction of the pull tab body, and a device post that connects the device shoulder and the device head. The device shoulder, the device head and the device post form an annular groove.

[0007] The device grip is made of soft resin and is fixed to the shoulder of the device;

[0008] Both the shoulder of the device and the grip of the device can pass through the mounting hole.

[0009] This application configures the pull tab assist device as a fixedly connected device connector and device gripper. The device connector abuts against both sides of the pull tab body via its shoulder and head, respectively, achieving engagement between the device connector and the mounting holes of the pull tab body. Specifically, the device connector is made of hard resin, giving it a certain degree of rigidity and preventing deformation. While ensuring engagement with the mounting holes, it reliably prevents the shoulder or head from accidentally slipping out, ensuring that the shoulder and head always reliably abut against both sides of the pull tab body, thus guaranteeing the reliable engagement between the device connector and the mounting holes of the pull tab body. Simultaneously, the device gripper is made of soft resin, providing good deformability and flexibility. It can easily deform to pass through the mounting holes, facilitating the engagement of the pull tab assist device with the pull tab body, while its softness provides a good grip and ease of handling.

[0010] Furthermore, the appliance connector is made of rigid PVC or rigid TPU, and the appliance grip is made of soft PVC or soft TPU. This ensures both the rigidity of the appliance connector and the flexibility of the appliance grip, while also facilitating the molding and processing of both components.

[0011] Furthermore, at the junction of the appliance shoulder and the appliance grip, the appliance shoulder has a first inclined surface at one end along the length of the pull tab body, and the appliance grip has a second inclined surface at one end along the length of the pull tab body. The first inclined surface and the second inclined surface are in surface contact and fixed together. Thus, by providing inclined surfaces at the junction of the appliance shoulder and the appliance grip, the contact area between the two is increased, enhancing the tightness of the connection between the appliance shoulder and the appliance grip.

[0012] Furthermore, at the junction of the appliance shoulder and the appliance grip, the appliance shoulder has a first stepped surface at one end along the length of the pull tab body, and the appliance grip has a second stepped surface at one end along the length of the pull tab body. The first stepped surface and the second stepped surface are in contact and fixed. Thus, by providing a stepped shape at the junction of the appliance shoulder and the appliance grip, forming a stepped surface, the contact area between the two is increased, enhancing the tightness between the appliance shoulder and the appliance grip.

[0013] Furthermore, at the junction of the device shoulder and the device grip, the device shoulder has a first V-shaped surface at one end along the length of the pull tab body, and the device grip has a second V-shaped surface at one end along the length of the pull tab body. The first V-shaped surface and the second V-shaped surface are in surface contact and fixed. Thus, by providing a V-shaped groove and a V-shaped protrusion at the junction of the device shoulder and the device grip, a V-shaped surface is formed, increasing the contact area between the two and enhancing the tightness between the device shoulder and the device grip.

[0014] Furthermore, at the junction of the device shoulder and the device grip, a joint portion is fixedly provided at one end of the device shoulder along the length direction of the pull tab body. The joint portion is located at the middle position of the device shoulder along the thickness direction of the pull tab body. A through-hole is provided in the joint portion, extending along the thickness direction of the pull tab body. A portion of the device grip is fixedly filled in the through-hole and fixedly wrapped around the front and back of the joint portion. Thus, by providing a through-hole in the joint portion of the device shoulder, the soft resin used during the molding of the device grip is allowed to penetrate and fill the through-hole, enhancing the adhesion between the device shoulder and the device grip.

[0015] Furthermore, at the junction of the device shoulder and the device grip, a joint portion is fixedly provided at one end of the device shoulder along the length direction of the pull tab body. The joint portion is located on the back side of the device shoulder along the thickness direction of the pull tab body, and the device grip is fixedly wrapped around the front side of the joint portion. In this way, by fixing the device grip to the entire front side of the joint portion of the thin-walled structure, the joint area between the two is increased, and the tightness between the device shoulder and the device grip is enhanced.

[0016] Furthermore, at the junction of the device shoulder and the device grip, a joint portion is fixedly provided at one end of the device shoulder along the length direction of the pull tab body. The joint portion is located at the middle position of the device shoulder along the width direction of the pull tab body, and the device grip is fixedly wrapped around the outer surface of the joint portion. In this way, by completely wrapping the device grip around the outer surface of the joint portion, at least around the outer surfaces of the joint portion on both sides along the width direction of the pull tab body, the joint area between the two is increased, and the tightness between the device shoulder and the device grip is enhanced.

[0017] Furthermore, the appliance connector is a single injection molded part, and the appliance grip is a secondary injection molded part formed on the shoulder of the appliance, which facilitates the processing and manufacturing of the appliance connector and the appliance grip, and can also reliably ensure the tightness between the two.

[0018] This utility model discloses another zipper pull tab, including a pull tab body with a mounting hole and a pull tab auxiliary device as described above. The post part of the device passes through the mounting hole, the shoulder part and the head part of the device are respectively close to both sides of the thickness direction of the pull tab body, and the circumferential solid part of the mounting hole is engaged in the annular groove, so that the device connector is engaged with the mounting hole.

[0019] This utility model provides another zipper pull, including a puller body and a zipper pull tab as described above, wherein the pull tab body is connected to the puller body.

[0020] As described above, the zipper puller, zipper pull tab, and zipper screwdriver involved in this utility model have the following beneficial effects:

[0021] The appliance connector is made of hard resin, giving it a certain degree of rigidity and making it less prone to deformation. While ensuring proper engagement with the mounting hole, it also reliably prevents the appliance shoulder or head from accidentally slipping out, ensuring that the shoulder and head always reliably abut against both sides of the pull tab body. This guarantees the reliable engagement between the appliance connector and the mounting hole of the pull tab body. Meanwhile, the appliance grip is made of soft resin, providing good deformability and flexibility. It can easily deform and pass through the mounting hole, facilitating the engagement and installation of the pull tab auxiliary appliance with the pull tab body. Its softness also provides a comfortable grip for the user. Attached Figure Description

[0022] Figure 1 This is a top view of the zipper pull of this utility model.

[0023] Figure 2 This is a right view of the zipper pull of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the pull head body in this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the pull tab body in this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the pull tab auxiliary device in this utility model.

[0027] Figure 6 for Figure 5Top view.

[0028] Figure 7 for Figure 5 The right view.

[0029] Figure 8a This is a top view of Embodiment 1 of the pull tab auxiliary device of this utility model. This figure is a simplified diagram.

[0030] Figure 8b for Figure 8a The right view.

[0031] Figure 9a This is a top view of Embodiment 2 of the pull tab auxiliary device of this utility model. This figure is a simplified diagram.

[0032] Figure 9b for Figure 9a The right view.

[0033] Figure 10a This is a top view of Embodiment 3 of the pull tab auxiliary device of this utility model. This figure is a simplified diagram.

[0034] Figure 10b for Figure 10a The right view.

[0035] Figure 11a This is a top view of Embodiment 4 of the pull tab auxiliary device of this utility model. This figure is a simplified diagram.

[0036] Figure 11b for Figure 11a The right view.

[0037] Figure 11c for Figure 11a A sectional view along the AA direction.

[0038] Figure 12a This is a top view of Embodiment 5 of the pull tab auxiliary device of this utility model. This figure is a simplified diagram.

[0039] Figure 12b for Figure 12a The right view.

[0040] Figure 13a This is a top view of Embodiment Six of the Pulling Plate Auxiliary Device of this utility model. This figure is a simplified diagram.

[0041] Figure 13b for Figure 13a The right view.

[0042] Figure 13c for Figure 13a BB-direction sectional view.

[0043] Component designation explanation

[0044] 20 Appliance connectors 21 shoulder of the instrument 22 instrument head 23 instrument column 24 Annular groove 25 First inclined plane 26 First step surface 27 First V-shaped surface 28 Joint 29 Connecting through holes 210 V-shaped groove 211 V-shaped protrusion 212 Limiting groove 30 Tool grip 31 second slope 32 Second step surface 33 Second V-shaped surface 40 Film montage 41 Mounting holes 42 Slipper Head Installation Section 43 Column connection hole 44 Equipment Installation Department 45 Limiting protrusion 50 Pull head body 51 upper wing 52 lower wing 53 Chain tooth passage 54 Pull tab mounting column Detailed Implementation

[0045] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0046] 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 to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" 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.

[0047] 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.

[0048] 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.

[0049] like Figure 1 and Figure 2 As shown, this utility model relates to the field of zipper technology, and in particular to a zipper puller auxiliary device 10, a zipper puller including the zipper puller auxiliary device 10, and a zipper pull head including the zipper puller. Specifically, the zipper pull head of this utility model includes a pull head body 50 and a zipper puller; the zipper puller of this utility model includes a pull head body 40 and a pull head auxiliary device 10, with the pull head body 40 connected to both the pull head body 50 and the pull head auxiliary device 10.

[0050] For ease of description, in the following embodiments, the directions are defined as follows: the length direction of the zipper is defined as the front-to-back direction, the width direction of the zipper is defined as the left-to-right direction, and the thickness direction of the zipper is defined as the up-down direction. The length, width, and thickness directions of the zipper head body 50, the zipper pull body 40, and the zipper pull auxiliary device 10 each correspond one-to-one with the length, width, and thickness directions of the zipper. Based on this, Figure 1 In the view shown, the top of the paper is the front direction, the bottom of the paper is the back direction, the left side of the paper is the left direction, the right side of the paper is the right direction, the front of the paper is the top direction, and the back of the paper is the bottom direction.

[0051] Typically, a zipper mainly consists of a pair of fabric strips arranged side by side, a toothed chain strap fixed to the inner edge of each fabric strip and extending back and forth, and a zipper pull, which is slidably mounted on the toothed chain strap. When the zipper pull moves forward, the pair of toothed chain straps engage, thereby closing the zipper; when the zipper pull moves backward, the pair of toothed chain straps disengage, thereby opening the zipper.

[0052] like Figures 1 to 3 As shown, the zipper pull body 50 includes an upper wing plate 51 and a lower wing plate 52 arranged opposite each other, a tooth passage 53 formed between the upper wing plate 51 and the lower wing plate 52, and a pull tab mounting post 54 fixed to the upper surface of the upper wing plate 51. A portion of the chain teeth on the chain belt is accommodated in the tooth passage 53. Figure 1 , Figure 2 and Figure 4 As shown, the front part of the pull tab body 40 is the pull head mounting part 42. The pull tab body 40 has a vertically penetrating column connection hole 43 in the pull head mounting part 42. The pull head mounting part 42 of the pull tab body 40 is hung on the pull tab mounting column 54 of the pull head body 50 through the column connection hole 43, connecting the front end of the pull tab body 40 to the pull tab mounting column 54, thereby installing the zipper pull tab as a whole on the upper surface of the pull head body 50. The rear part of the pull tab body 40 is the appliance mounting part 44. The pull tab body 40 has a vertically penetrating mounting hole 41 in the appliance mounting part 44. The mounting hole 41 can have various shapes, such as round holes, elliptical holes, rectangular holes, etc. In this embodiment, the mounting hole 41 is an elliptical hole, and the pull tab auxiliary appliance 10 is connected to the pull tab body 40 at the mounting hole 41.

[0053] like Figures 5 to 7As shown, the pull tab assist device 10 includes a device connector 20 and a device gripper 30 fixedly connected. The device connector 20 engages with the mounting hole 41 of the pull tab body 40, thus connecting the pull tab assist device 10 to the pull tab body 40. The device gripper 30 is for the user to hold. Specifically, the device connector 20 and the device gripper 30 are made of different resins. Both the device connector 20 and the device gripper 30 are elastically deformable, but the hardness of the device connector 20 is higher than that of the device gripper 30. The elastic deformation capacity and softness of the device connector 20 are lower than those of the device gripper 30. Specifically: the appliance connector 20 is made of rigid resin and includes an appliance shoulder 21 and an appliance head 22 arranged vertically opposite each other along the thickness direction of the pull tab body 40, and an appliance post 23 connected between the appliance shoulder 21 and the appliance head 22. The size of the appliance shoulder 21 and the size of the appliance head 22 are both larger than the size of the appliance post 23. Therefore, the appliance shoulder 21, the appliance head 22, and the appliance post 23 form an annular groove 24, which is distributed on the outer periphery of the appliance post 23. The appliance grip 30 is made of soft resin and is fixed to the appliance shoulder 21.

[0054] When installing the pull-tab auxiliary device 10 on the pull-tab body 40, it can be installed from the front or the back of the pull-tab body 40. Preferably, this application installs the pull-tab auxiliary device 10 from the back of the pull-tab body 40: the rear end of the pull-tab auxiliary device 10 is inserted upward from the lower side of the pull-tab body 40 into the mounting hole 41, the device grip 30 first passes entirely through the mounting hole 41, and then the device shoulder 21 passes entirely through the mounting hole 41; however, the device head 22 cannot pass through the mounting hole 41, thus completing the installation. At this time, if Figure 1 and Figure 2 As shown, the tool post 23 passes through the mounting hole 41, and the solid portion around the mounting hole 41 engages with the annular groove 24. The tool shoulder 21 abuts against the front of the pull tab body 40, and the tool head 22 abuts against the back of the pull tab body 40, thereby engaging the tool connector 20 with the mounting hole 41 of the pull tab body 40 and fixing the tool connector 20 to the mounting hole 41 of the pull tab body 40. This structure also enables a detachable connection between the pull tab auxiliary tool 10 and the pull tab body 40, allowing the pull tab auxiliary tool 10 to be replaced.

[0055] In the aforementioned pull tab assist device 10, the device connector 20 is made of hard resin, giving it a certain degree of rigidity and making it less prone to deformation. While ensuring engagement with the mounting hole 41, it also reliably prevents the device shoulder 21 or device head 22 from accidentally detaching from the mounting hole 41, ensuring that the device shoulder 21 and device head 22 always reliably abut against both sides of the pull tab body 40. This guarantees the reliable engagement between the device connector 20 and the mounting hole 41 of the pull tab body 40. Meanwhile, the device grip 30 is made of soft resin, giving it good deformability and flexibility. It can easily deform and pass through the mounting hole 41, facilitating the engagement and installation of the pull tab assist device 10 with the pull tab body 40. Furthermore, its softness alters the tactile feel when the user holds the pull tab assist device 10, providing a better grip and making it easier to grasp. In addition, the device grip 30 has better elastic deformation capability, which can reduce the constraint of the size of the mounting hole 41 on the shape of the device grip 30, thereby appropriately enriching the design of the device grip 30 and thus enriching the overall design of the pull tab auxiliary device 10.

[0056] Preferably, the appliance connector 20 is made of rigid PVC or rigid TPU, and the appliance grip 30 is made of soft PVC or soft TPU. This ensures that both the appliance connector 20 and the appliance grip 30 are PVC or TPU components, guaranteeing both the rigidity of the appliance connector 20 and the flexibility of the appliance grip 30, while also facilitating their molding and processing. Furthermore, the appliance connector 20 is a first-injection molded part, while the appliance grip 30 is a second-injection molded part, subsequently injection molded onto the appliance shoulder 21. This facilitates the manufacturing and processing of both the appliance connector 20 and the appliance grip 30, and also reliably ensures a tight seal between them.

[0057] Furthermore, the pull-tab aid 10 has a structure at the joint between the aid shoulder 21 and the aid grip 30 to enhance the tightness of the connection between the two. Based on this structure, the pull-tab aid 10 also has multiple embodiments. Several preferred embodiments of the pull-tab aid 10 are provided below.

[0058] Example 1 of 10 Film Pulling Auxiliary Devices

[0059] like Figure 8a and Figure 8bAs shown, the appliance grip 30 is integrally formed at the rear end of the appliance shoulder 21. The appliance shoulder 21 and the appliance grip 30 are arranged front and back along the length of the pull tab body 40. At the junction of the appliance shoulder 21 and the appliance grip 30, the rear end of the appliance shoulder 21 is provided with a first inclined surface 25, and the front end of the appliance grip 30 is provided with a second inclined surface 31. The appliance grip 30 is formed rearward from the first inclined surface 25 at the rear end of the appliance shoulder 21, and the first inclined surface 25 and the second inclined surface 31 are in contact and fixed. The first inclined surface 25 and the second inclined surface 31 have the same inclination, and can be arranged as follows: Figure 8b The angles shown are all tilted upwards and backwards, or they can all tilt downwards and backwards. In this way, by providing a slope at the joint between the shoulder 21 and the grip 30, the joint area between the two is increased, and the tightness between the shoulder 21 and the grip 30 is enhanced.

[0060] Example 2 of 10 Film Pulling Auxiliary Devices

[0061] like Figure 9a and Figure 9b As shown, the appliance grip 30 is integrally formed at the rear end of the appliance shoulder 21, and the appliance shoulder 21 and the appliance grip 30 are arranged front and back along the length of the pull tab body 40. At the joint between the appliance shoulder 21 and the appliance grip 30, the rear end of the appliance shoulder 21 has a stepped shape, so that the rear end of the appliance shoulder 21 has a first stepped surface 26; the front end of the appliance grip 30 also has a stepped shape, so that the front end of the appliance grip 30 has a second stepped surface 32. The appliance grip 30 is formed rearward from the first stepped surface 26 at the rear end of the appliance shoulder 21, and the first stepped surface 26 and the second stepped surface 32 are in contact and fixed. In this way, by setting a stepped shape at the joint between the appliance shoulder 21 and the appliance grip 30 to form a stepped surface, the joint area between the two is increased, and the tightness between the appliance shoulder 21 and the appliance grip 30 is enhanced.

[0062] Example 3 of 10 Film Pulling Auxiliary Devices

[0063] like Figure 10a and Figure 10bAs shown, the appliance grip 30 is integrally formed at the rear end of the appliance shoulder 21, and the appliance shoulder 21 and the appliance grip 30 are arranged front and back along the length of the pull tab body 40. At the junction of the appliance shoulder 21 and the appliance grip 30, the rear end of the appliance shoulder 21 is provided with a rearward-opening V-shaped groove 210, so that the rear end of the appliance shoulder 21 has a first V-shaped surface 27, and the first V-shaped surface 27 is the groove wall of the V-shaped groove 210; the front end of the appliance grip 30 is provided with a forward-protruding V-shaped protrusion 211, so that the front end of the appliance grip 30 has a second V-shaped surface 33, and the second V-shaped surface 33 is the left and right surfaces of the V-shaped protrusion 211; the appliance grip 30 is formed rearward from the first V-shaped surface 27 at the rear end of the appliance shoulder 21, and the first V-shaped surface 27 and the second V-shaped surface 33 are in contact and fixed. Of course, in other embodiments, the rear end of the shoulder 21 of the appliance may be provided with a rearwardly protruding V-shaped protrusion 211, while the front end of the grip 30 may be provided with a forward-facing V-shaped groove 210. In this way, by providing the V-shaped groove 210 and the V-shaped protrusion 211 at the joint of the shoulder 21 and the grip 30, a V-shaped surface is formed, increasing the joint area between the two and enhancing the tightness between the shoulder 21 and the grip 30.

[0064] Example 4 of 10 Film Pulling Auxiliary Devices

[0065] like Figures 11a to 11c As shown, the appliance grip 30 is integrally formed at the rear end of the appliance shoulder 21. The appliance shoulder 21 and the appliance grip 30 are arranged front and back along the length of the pull tab body 40. At the junction of the appliance shoulder 21 and the appliance grip 30, a joint portion 28 is integrally extended rearward from the rear end of the appliance shoulder 21. The joint portion 28 has a thin-walled structure and a relatively short length. The joint portion 28 is located at the middle position of the appliance shoulder 21 in the vertical direction. The joint portion 28 has a vertically penetrating joint hole 29. The appliance grip 30 is injection molded at the joint portion 28 at the rear end of the appliance shoulder 21. During the injection molding process of the appliance grip 30, soft PVC or soft TPU penetrates into the connecting hole 29 and is injected into the upper and lower sides of the joint 28. After injection molding, a portion of the appliance grip 30 is fixedly filled in the connecting hole 29, and another portion is fixedly wrapped around the front and back of the joint 28. Thus, by opening the connecting hole 29 in the joint 28 of the appliance shoulder 21, the soft resin of the appliance grip 30 during molding penetrates and fills the connecting hole 29, enhancing the tightness between the appliance shoulder 21 and the appliance grip 30.

[0066] Of course, in other embodiments, the joint portion 28 with the connecting through hole 29 is located on the front side of the shoulder portion 21 in the vertical direction, so that a portion of the appliance grip 30 is fixedly filled in the connecting through hole 29 and another portion is fixedly wrapped around the back side of the joint portion 28. Alternatively, the joint portion 28 with the connecting through hole 29 is located on the back side of the shoulder portion 21 in the vertical direction, so that a portion of the appliance grip 30 is fixedly filled in the connecting through hole 29 and another portion is fixedly wrapped around the front side of the joint portion 28.

[0067] Preferably, in this embodiment, as Figure 11a and Figure 11b As shown, the width of the joint 28 is equal to the width of the upper portion of the appliance grip 30. The appliance grip 30 covers only the front and back of the joint 28, but not the left and right surfaces of the joint 28. Of course, in other embodiments, the width of the joint 28 may be slightly smaller than the width of the upper portion of the appliance grip 30, and the joint 28 may be completely covered by the appliance grip 30.

[0068] Example 5 of 10 Film Pulling Auxiliary Devices

[0069] like Figure 12a and Figure 12b As shown, the appliance grip 30 is integrally formed on the upper surface of the rear portion of the appliance shoulder 21. At the junction of the appliance shoulder 21 and the appliance grip 30, a joint portion 28 is integrally extended rearward from the rear end of the appliance shoulder 21. The joint portion 28 is located on the back side of the appliance shoulder 21 along the thickness direction of the pull tab body 40. The joint portion 28 has a thin-walled structure and a relatively long length, thus the front side of the joint portion 28 has a large surface area. The appliance grip 30 is injection molded onto the joint portion 28, so the appliance grip 30 is at least fixedly wrapped around the front side of the joint portion 28. In this way, by fixing the appliance grip 30 to the entire front side of the thin-walled joint portion 28, the joint area between the two is increased, and the tightness between the appliance shoulder 21 and the appliance grip 30 is enhanced.

[0070] Preferably, the length of the joint 28 is equal to the length of the appliance grip 30, and the width of the joint 28 can be equal to or less than the width of the appliance grip 30. When the width of the joint 28 is equal to the width of the appliance grip 30, such as... Figure 12a and Figure 12b As shown, the appliance grip 30 only covers the front of the joint 28; when the width of the joint 28 is less than the width of the appliance grip 30, the appliance grip 30 covers the front, left and right surfaces of the joint 28.

[0071] Example 6 of 10 Film Pulling Auxiliary Devices

[0072] like Figures 13a to 13c As shown, the appliance grip 30 is integrally formed on the left and right surfaces of the rear portion of the appliance shoulder 21. At the junction of the appliance shoulder 21 and the appliance grip 30, a joint portion 28 is integrally extended rearward from the rear end of the appliance shoulder 21, and the joint portion 28 is located at the middle position of the appliance shoulder 21 in the left-right direction; the appliance grip 30 is at least fixedly wrapped around the left and right surfaces of the joint portion 28. In this way, by completely wrapping the appliance grip 30 around the left and right outer surfaces of the joint portion 28, the joint area between the two is increased, and the tightness between the appliance shoulder 21 and the appliance grip 30 is enhanced.

[0073] Preferably, the thickness of the joint 28 can be equal to the thickness of the appliance grip 30, or the thickness of the joint 28 can be less than the thickness of the appliance grip 30. When the thickness of the joint 28 is equal to the thickness of the appliance grip 30, such as... Figure 13a and Figure 13b As shown, the appliance grip 30 only covers the left and right surfaces of the joint 28; when the thickness of the joint 28 is less than the thickness of the appliance grip 30, the appliance grip 30 covers the entire joint 28.

[0074] In the six embodiments of the zipper puller 10 described above, the zipper puller 10, which is fixed by the device connector 20 and the device grip 30, has a slender structure in the length direction of the zipper, making it convenient for the user to grasp the device grip 30 and pull the zipper pull along the length direction of the zipper, thereby facilitating the operation of closing or opening the zipper. Furthermore, as... Figure 4 As shown, the pull tab body 40 has a downwardly protruding limiting protrusion 45 integrally provided at the rear end of the back of the appliance mounting part 44; as Figure 5 As shown, the appliance connector 20 has a rearward-facing limiting groove 212 at the rear end of the appliance head 23. When the appliance connector 20 is connected to the pull tab body 40, the limiting protrusion 45 is accommodated in the limiting groove 212, with the left side wall of the limiting groove 212 adjacent to the left side of the limiting protrusion 45 and the right side wall of the limiting groove 212 adjacent to the right side of the limiting protrusion 45. In this way, the left and right offset of the appliance connector 20 relative to the pull tab body 40 can be limited, that is, the left and right offset of the pull tab auxiliary appliance 10 relative to the pull tab body 40 can be limited, ensuring the reliability of the connection between the pull tab auxiliary appliance 10 and the pull tab body 40.

[0075] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0076] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

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