Fastener, article having fastener, and puller

By designing an asymmetrical chain tooth structure and utilizing special settings for the shielding and meshing parts, the problem of balancing chain tooth width and connection strength was solved, achieving the effect of displaying large-sized chain teeth under a small-sized zipper pull, thus improving connection strength and appearance.

CN224320314UActive Publication Date: 2026-06-05NOTAPE INTERNATIONAL LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NOTAPE INTERNATIONAL LTD
Filing Date
2025-06-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, the width of the chain teeth and the connection strength cannot be balanced. The width of the zipper head cannot be increased, resulting in insufficient connection strength.

Method used

An asymmetric chain tooth structure is designed by setting a blocking part and an engaging part in the thickness direction. The tail end of the blocking part protrudes from the tail end of the engaging part, forming an asymmetric structure. It also cooperates with the pull head in the width direction. The blocking structure of the blocking part improves the appearance and connection stability.

Benefits of technology

Without increasing the overall width of the chain teeth, the connection strength and appearance of the chain teeth are improved, and the smoothness of the pull-out process is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a chain element, an article with the chain element and a puller, and relates to the technical fields of chain elements, zippers and the like. The chain element is provided with a shielding part and an engaging part along a thickness direction. The shielding part and the engaging part are respectively provided with a head end and a tail end along a width direction. The head end of the shielding part is provided with a shielding structure, the head end of the engaging part is provided with an engaging structure, the shielding structure and the engaging structure are correspondingly arranged along the thickness direction, and the tail end of the shielding part protrudes from the tail end of the engaging part along the width direction. The application can solve the problem that the width size and the connecting strength of the chain element cannot be considered simultaneously.
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Description

Technical Field

[0001] This application belongs to the technical field of chain teeth, zippers, etc., and specifically relates to a chain tooth, an article with chain teeth, and a zipper pull. Background Technology

[0002] In related technologies, injection-molded chain teeth are usually symmetrical, meaning the chain teeth are symmetrically arranged in the thickness direction. In this case, the width of the chain teeth is limited by the width of the zipper pull. The width of the chain teeth, in turn, affects the connection area between the chain teeth and the fabric, thus affecting the connection strength. Therefore, to improve the connection strength of the chain teeth, it is necessary to simultaneously increase the width of both the chain teeth and the zipper pull.

[0003] However, due to limitations in the usage environment, the width of the zipper pull cannot be increased arbitrarily in many cases. Therefore, how to improve the connection strength of the zipper teeth is a problem that needs to be solved in this field. Utility Model Content

[0004] The purpose of this application is to provide a chain tooth, an article with a chain tooth, and a zipper pull, which can solve the problem that the width of the chain tooth and the connection strength cannot be simultaneously achieved.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a chain tooth, which has a blocking portion and an engaging portion along the thickness direction;

[0007] Along the width direction, the blocking part and the engaging part each have their own head end and tail end. The head end of the blocking part is provided with a blocking structure, and the head end of the engaging part is provided with an engaging structure. Along the thickness direction, the blocking structure and the engaging structure are correspondingly arranged.

[0008] Along the width direction, the tail end of the blocking portion protrudes beyond the tail end of the engaging portion.

[0009] This application embodiment also provides an article with chain teeth, the article comprising fabric, core thread and a plurality of the above-described chain teeth;

[0010] The core wires are respectively located at the edges of both sides of the fabric, and a plurality of chain teeth are fixed along the extension direction of the core wires to each edge of the fabric on which the core wires are located and wrap around the core wires.

[0011] The meshing structure of the chain tooth on one side of the edge meshes with the meshing structure of the chain tooth on the other side of the edge, wherein the blocking structure of the chain tooth on one side of the edge and the blocking structure of the chain tooth on the other side of the edge are misaligned along the extension direction of the edge.

[0012] This application embodiment also provides a zipper pull, including: an upper side plate, a lower side plate and a connecting post, wherein the upper side plate and the lower side plate are spaced apart, the connecting post is fixed between the upper side plate and the lower side plate and is located in the front end area of ​​the zipper pull, and the space between the upper side plate and the lower side plate is used to accommodate chain teeth, wherein the chain teeth are the aforementioned chain teeth;

[0013] The lower side plate has protruding edges on both sides along the width direction, and the side of the upper side plate facing the lower side plate is planar.

[0014] In this embodiment, the engagement or disengagement of the chain teeth can be achieved through the engagement structure of the engagement part; the shielding structure of the shielding part is correspondingly arranged with the engagement structure in the thickness direction, which can provide a certain shielding effect on the engagement structure and improve the appearance of the chain teeth to a certain extent; furthermore, along the width direction, the tail end of the shielding part protrudes beyond the tail end of the engagement part, so that the chain teeth have an asymmetrical structure in the thickness direction, that is, an asymmetrical chain tooth is formed. In this way, even when using a small-sized chain tooth with a small-sized zipper pull, the effect of a large-sized chain tooth can be displayed, which can help improve the appearance. At the same time, it can also help improve the smoothness of the zipper pull process. Based on the above settings, this embodiment can use the engagement part to cooperate with the corresponding zipper pull, and the width of the shielding part is not limited by the width of the zipper pull. This effectively alleviates the problem of the chain tooth width affecting the connection strength, and thus can balance the connection strength of the chain teeth without increasing the overall width of the chain teeth. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first structure of the chain teeth disclosed in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the second structure of the chain teeth disclosed in the embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the first structure of a plurality of mating chain teeth disclosed in an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the second structure of multiple cooperating chain teeth disclosed in an embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the third structure of multiple cooperating chain teeth disclosed in an embodiment of this application;

[0020] Figure 6 This is a schematic diagram of the fourth structure of multiple cooperating chain teeth disclosed in the embodiments of this application;

[0021] Figure 7This is a schematic diagram of chain teeth with different widths disclosed in the embodiments of this application;

[0022] Figure 8 This is a first structural schematic diagram of the chain teeth, core wire, and fabric disclosed in an embodiment of this application;

[0023] Figure 9 This is a schematic diagram of the second structure of the chain teeth, core wire, and fabric disclosed in an embodiment of this application;

[0024] Figure 10 This is a schematic diagram of the third structure of the chain teeth, core wire, and fabric disclosed in the embodiments of this application;

[0025] Figure 11 This is a schematic diagram illustrating the structure of various forms of chain teeth, core wires, and fabrics disclosed in the embodiments of this application;

[0026] Figure 12 This is a schematic diagram of the first structure of the chain teeth and the zipper pull disclosed in an embodiment of this application;

[0027] Figure 13 This is a schematic diagram of the second structure of the chain teeth and the zipper pull disclosed in the embodiments of this application;

[0028] Figure 14 This is a schematic diagram of the third structure of the chain teeth and the zipper pull disclosed in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 01-Chain teeth;

[0031] 10-Shielding part; 11-Shielding structure;

[0032] 20 - Meshing part; 21 - Meshing structure; 211 - Meshing groove;

[0033] 30 - Fixing part;

[0034] 02-Fabric;

[0035] 03-Core wire;

[0036] 04-Slide head; 041-Upper side panel; 042-Lower side panel; 0421-Edge; 043-Connecting post. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0040] This application discloses a chain tooth 01. For ease of description, please refer to [link to documentation]. Figure 8 In this embodiment, the length, width, and thickness directions of the zipper formed by the chain teeth 01 are used as references. (Reference) Figures 1 to 14 Along the thickness direction, the disclosed chain tooth 01 is provided with a blocking part 10 and an engaging part 20. Along the width direction, the blocking part 10 and the engaging part 20 each have their own head end and tail end.

[0041] In use, the blocking part 10 is located outside the engaging part 20, and can block the engaging part 20; the engaging part 20 is located inside and is used for engagement. The first end of the blocking part 10 may be provided with a blocking structure 11, and correspondingly, the first end of the engaging part 20 may be provided with an engaging structure 21. Along the thickness direction, the blocking structure 11 and the engaging structure 21 are correspondingly arranged. In this way, the engaging structure 21 can realize the engagement between the chain teeth 01, and the blocking structure 11 can provide a certain degree of blocking effect on the engaging structure 21 to prevent the engaging structure 21 from being exposed and affecting the appearance of the chain teeth 01.

[0042] like Figure 1 and Figure 2 As shown, along the width direction, the tail end of the blocking portion 10 protrudes beyond the tail end of the engaging portion 20, allowing the size of the blocking portion 10 to be larger than the size of the engaging portion 20 in the width direction, thus creating a small-size engagement and large-size blocking effect. Optionally, the blocking portion 10 can effectively cover the seams at the edge of the fabric 02 and improve the stability of the chain teeth 01 wrapping around the edge of the fabric 02. Furthermore, it allows for a larger surface area display, and the wider size enables more areas of interaction with the fabric 02, thereby enhancing the stability of the chain teeth 01. Optionally, the fabric 02 can be clothing fabric, flexible packaging fabric, chain straps, etc.

[0043] Optionally, the length direction can be parallel to the extension direction of the edge of the fabric 02 and the pulling direction of the zipper head 04; the width direction can be parallel to the width direction of the zipper head 04; and the thickness direction can be parallel to the normal direction of the fabric 02.

[0044] In this embodiment, the engagement or disengagement of the chain teeth 01 can be achieved through the engagement structure 21 of the engagement part 20; the shielding structure 11 of the shielding part 10 is correspondingly arranged with the engagement structure 21 in the thickness direction, which can provide a certain shielding effect on the engagement structure 21, thereby improving the appearance of the chain teeth 01 to a certain extent; and, along the width direction, the tail end of the shielding part 10 protrudes from the tail end of the engagement part 20, so that the chain teeth 01 have an asymmetrical structure in the thickness direction, that is, an asymmetrical chain teeth 01 is formed. In this way, when a small-sized chain teeth 01 is used with a small-sized zipper head, the effect of a large-sized chain teeth 01 can be displayed, which can help improve the appearance. At the same time, it can also help improve the smoothness of the zipper head 04 pulling process.

[0045] Based on the above settings, the embodiment of this application can cooperate with the corresponding zipper head 04 through the meshing part 20, and the width of the blocking part 10 will not be limited by the width of the zipper head 04, so that the overall chain tooth 01 can effectively alleviate the problem of the connection strength being affected by the width of the chain tooth 01, and thus the connection strength of the chain tooth 01 can be taken into account without increasing the overall width of the chain tooth 01.

[0046] like Figure 1 and Figure 2 As shown, along the length direction, meshing grooves 211 can be provided on opposite sides of the meshing structure 21. These meshing grooves 211 penetrate the meshing structure 21 along its thickness direction. Thus, by providing the meshing grooves 211, the two rows of chain teeth 01 can be staggered and interlocked to achieve the engagement of the chain teeth 01. It should be noted that the meshing grooves 211 are located in the region near the end of the meshing structure 21. Due to the presence of the meshing grooves 211, corresponding meshing protrusions are formed at the ends of the meshing structure 21. Thus, when the two rows of chain teeth 01 are engaged, the meshing protrusion of one row of chain teeth 01 is correspondingly embedded in the meshing groove 211 of the other row of chain teeth 01, thereby achieving the engagement of the two rows of chain teeth 01 and preventing their separation.

[0047] like Figure 2As shown, in the projection plane perpendicular to the thickness direction, the shielding structure 11 shields at least a portion of the meshing groove 211. Thus, the shielding structure 11 forms a groove bottom in at least a portion of the meshing groove 211, which, in conjunction with the sidewall of the meshing groove 211, limits the meshing protrusion, thereby improving the firmness and stability of the meshing between the meshing groove 211 and the meshing protrusion. Of course, the shielding portions 10 of two adjacent chain teeth 01 in one row can also provide some shielding for the meshing protrusion located in the meshing groove 211, which helps improve the appearance of the chain teeth 01.

[0048] Optionally, the shielding structure 11 can shield the entire area of ​​the meshing groove 211. Of course, it can also shield a part of the meshing groove 211, which can be set according to actual needs.

[0049] refer to Figure 1 In some embodiments, the size of the shielding structure 11 gradually decreases along the width direction and along the length direction, which facilitates the meshing of the two rows of chain teeth 01 and effectively prevents interference between the two rows of chain teeth 01.

[0050] Optionally, the shielding structure 11 may have recesses on opposite sides in the length direction, so that the size of the shielding structure 11 gradually decreases in the length direction along the width direction.

[0051] For example, by providing the recessed portion, arc surfaces can be formed on both sides of the shielding structure 11 that are opposite to each other along the length direction; correspondingly, the outer surface of the meshing protrusion can also be an arc surface. Based on this, the contact area between the meshing protrusion and the meshing groove 211 can be increased, which can improve the stability of the chain tooth 01 meshing to a certain extent.

[0052] Optionally, the end face of the shielding structure 11 can be a curved surface, such as a circular arc surface, to avoid sharp structures that could scratch the user.

[0053] refer to Figure 1 In some embodiments, along the length direction, the opposite sides of the engaging structure 21 can protrude from the opposite sides of the blocking structure 11. Based on this, engaging protrusions can be formed on the opposite sides of the engaging structure 21 to facilitate engagement with the engaging groove 211; and since the engaging structure 21 protrudes from the blocking structure 11, the size of the engaging structure 21 is larger than the size of the blocking structure 11 in the length direction, thereby improving the strength of the engaging structure 21 and thus improving the connection strength of the chain tooth 01.

[0054] refer to Figure 10 and Figure 11In some embodiments, along the width direction, from the shielding structure 11 to the tail end of the shielding portion 10, the dimension of the shielding portion 10 decreases in the thickness direction. Based on this, after the two rows of chain teeth 01 engage, the two rows of chain teeth 01 can be made to have a situation where the middle is higher and the sides are lower in the width direction. On the one hand, this can improve the strength of the middle engagement area, and on the other hand, it can reduce the height difference between the sides and the fabric 02, thereby effectively alleviating the problem of the chain teeth 01 being easily scratched, and also improving the appearance of the chain teeth 01.

[0055] It should be noted that the position with the largest thickness of the chain tooth 01 can be located at the edge of the shielding structure 11, inside the shielding structure 11, or in the area between the shielding structure 11 and the tail end. The specific location can be set according to actual needs, and no specific limitation is made here.

[0056] In some more specific embodiments, the surface of the blocking portion 10 that is away from the meshing can be an arc surface, thus allowing the dimension of the blocking portion 10 to gradually decrease in the thickness direction. Furthermore, the dimension of the arc surface along the width direction of the chain tooth 01, the curvature of the arc surface, etc., can be set according to actual needs, such as... Figure 11 As shown in b, 11c, 11d, and 11e. For example, the arc surface can be a circular arc surface, an elliptical arc surface, etc.

[0057] In other embodiments, the size of the shielding portion 10 remains unchanged in the thickness direction along the width direction, that is, the chain teeth 01 are of equal thickness, thus ensuring the overall strength of the shielding portion 10.

[0058] In other, more specific embodiments, such as Figure 11 As shown in Figure a, the surface of the shielding part 10 that is away from the engaging part 20 can be a plane, and the plane is provided with a chamfer structure at the connection between it and the side of the shielding part 10 along the width direction. In this way, the problem of the shielding part 10 causing scratches to the user can be effectively alleviated.

[0059] Optionally, the surface of the blocking portion 10 facing away from the engaging portion 20 may have a chamfered structure between it and the side surface at the tail end of the blocking portion 10; or, the surface of the blocking portion 10 facing away from the engaging portion 20 may have a chamfered structure between it and the side surface at the head end of the blocking portion 10 (i.e., the side surface of the blocking structure 11); of course, a combination of the two methods mentioned above may also be used, and the specific method can be set according to actual needs. For example, the chamfered structure may be an arc-shaped chamfered structure, such as a rounded arc chamfered structure.

[0060] Based on the above settings, the chain tooth 01 in this embodiment can have a variety of different appearances and be adapted to the zipper pull 04 to meet different appearance requirements.

[0061] refer to Figure 2In some embodiments, the chain tooth 01 may further include a fixing part 30, which is connected to the tail end of the engaging part 20. Along the thickness direction, the fixing part 30 is correspondingly disposed to the tail end of the blocking part 10 opposite to the blocking structure 11. Based on this, by the cooperation of the fixing part 30 and the blocking part 10, the chain tooth 01 can be fixed to the fabric 02, thereby ensuring the installation stability of the chain tooth 01.

[0062] Along the thickness direction, the engaging part 20 can protrude from the fixing part 30 in the direction away from the blocking part 10. That is, in the thickness direction, the fixing part 30 is contracted relative to the engaging part 20. In this way, the engaging part 20 can be subjected to the squeezing action of the pull head 04, and the fixing part 30 can be stably supported by the pull head 04 to improve the stability of the pull head 04.

[0063] In some embodiments, the shielding part 10 and the engaging part 20 can be an integral injection-molded structure, that is, the chain tooth 01 is formed by injection molding to improve the installation efficiency of the chain tooth 01. In other embodiments, the shielding part 10 and the engaging part 20 can also be fixedly connected to ensure the installation stability between the two.

[0064] Based on the aforementioned chain teeth 01, this application also discloses an article having chain teeth 01. The disclosed article includes fabric 02, core thread 03, and multiple chain teeth 01 as described above. Figures 8 to 11 As shown. Optionally, the item can be clothing, a flexible bag, a zipper, etc.

[0065] The core thread 03 can be set on the edges of both sides of the fabric 02, which helps to improve the strength of each edge of the fabric 02 and alleviate the problem of wrinkles on each edge of the fabric 02. Multiple chain teeth 01 are fixed along the extension direction of the core thread 03 to each edge of the fabric 02 where the core thread 03 is located and wrap the core thread 03. In this way, the stability and firmness of the chain teeth 01 can be guaranteed.

[0066] The meshing structure 21 of the chain tooth 01 on one side edge meshes with the meshing structure 21 of the chain tooth 01 on the other side edge, and the blocking structure 11 of the chain tooth 01 on one side edge and the blocking structure 11 of the chain tooth 01 on the other side edge are misaligned along the extension direction of the edge.

[0067] Based on the above settings, the engagement structure 21 can be used to ensure that the chain teeth 01 on both sides of the fabric 01 can be stably engaged, and the blocking structure 11 of the chain teeth 01 on both sides will not interfere with each other, and can block the engaging structure 21, thereby improving the appearance of the item.

[0068] refer to Figure 7In some embodiments, the dimensions of the blocking portions 10 of different chain teeth 01 on each side edge can be different along the width direction. This allows for chain teeth 01 with varying widths, improving their appearance. Of course, the dimensions of the blocking portions 10 of different chain teeth 01 on each side edge can also be the same along the width direction, depending on actual needs. Furthermore, the dimensions of the blocking portions 10 of chain teeth 01 on both sides edge can be the same or different along the width direction.

[0069] Taking an item as a zipper as an example, the zipper includes a pair of chain straps, multiple chain teeth 01, and a core wire 03. The core wire 03 is arranged on each chain strap along the extension direction of the chain straps. The multiple chain teeth 01 are distributed on each of the pair of chain straps along the extension direction of the chain straps and wrap around the core wire 03. The meshing structure 21 of the chain teeth 01 on one chain strap meshes with the meshing structure 21 of the chain teeth 01 on the other chain strap. The blocking structure 11 of the chain teeth 01 on one chain strap and the blocking structure 11 of the chain teeth 01 on the other chain strap are arranged along the extension direction of the chain straps.

[0070] Based on the above settings, the meshing structure 21 can achieve stable meshing of the chain teeth 01 on the two chain belts, and the blocking structure 11 of the chain teeth 01 on the two chain belts will not interfere with each other, and can block the meshing structure 21 that meshes with each other, thereby improving the appearance of the zipper.

[0071] In this embodiment, if the thickness of the two sides of the blocking part 10 is relatively small, a conventional zipper can be used; however, if the thickness of the two sides of the blocking part 10 is too large, the blocking part may interfere with the conventional zipper, making it difficult for the zipper to move.

[0072] To address the above situation, this application also discloses a zipper puller 04, which includes an upper side plate 041, a lower side plate 042, and a connecting post 043. For example... Figures 12 to 14 As shown, the upper side plate 041 and the lower side plate 042 are spaced apart. The connecting post 043 is fixed between the upper side plate 041 and the lower side plate 042 and is located in the front end area of ​​the zipper pull 04. The space between the upper side plate 041 and the lower side plate 042 is used to accommodate the chain tooth 01, which is the aforementioned chain tooth 01. Furthermore, the lower side plate 042 may have edges 0421 protruding from the upper side plate 041 on both sides along the width direction, and the side of the upper side plate 041 facing the lower side plate 042 may be planar.

[0073] Based on the above configuration, the tail end of the meshing part 20 can be squeezed by the edges 0421 on both sides, so that the two rows of chain teeth 01 mesh with each other; at the same time, the tail end of the blocking part 10 is located between the edge 0421 and the upper side plate 041, so that the tail end of the blocking part 10 is not blocked by the pull head 04, so that the size of the tail end of the blocking part 10 can be set according to the requirements to present chain teeth 01 of different specifications.

[0074] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A chain tooth, characterized in that, Along the thickness direction, the chain tooth (01) is provided with a blocking part (10) and an engaging part (20). Along the width direction, the blocking part (10) and the engaging part (20) each have their own head end and tail end. The head end of the blocking part (10) is provided with a blocking structure (11), and the head end of the engaging part (20) is provided with an engaging structure (21). Along the thickness direction, the blocking structure (11) and the engaging structure (21) are correspondingly arranged. Along the width direction, the tail end of the blocking part (10) protrudes beyond the tail end of the engaging part (20).

2. The chain tooth according to claim 1, characterized in that, Along the length direction, the meshing structure (21) has meshing grooves (211) on opposite sides, and the meshing grooves (211) penetrate the meshing structure (21) along the thickness direction. In a projection plane perpendicular to the thickness direction, the shielding structure (11) shields at least a portion of the engagement groove (211).

3. The chain tooth according to claim 1, characterized in that, Along the width direction, the size of the shielding structure (11) gradually decreases in the length direction.

4. The chain tooth according to claim 1, characterized in that, Along the length direction, the opposite sides of the meshing structure (21) protrude from the opposite sides of the shielding structure (11).

5. The chain tooth according to claim 1, characterized in that, Along the width direction, from the shielding structure (11) to the tail end of the shielding part (10), the size of the shielding part (10) decreases in the thickness direction.

6. The chain tooth according to claim 5, characterized in that, The surface of the shielding part (10) that is away from the engaging part (20) is an arc surface.

7. The chain tooth according to claim 1, characterized in that, Along the width direction, the size of the blocking part (10) in the thickness direction remains unchanged.

8. The chain tooth according to claim 7, characterized in that, The surface of the shielding part (10) facing away from the engaging part (20) is a plane, and the connection between the plane and the side of the shielding part (10) along the width direction is provided with a chamfer structure.

9. The chain tooth according to claim 1, characterized in that, The chain tooth also includes a fixing part (30), which is connected to the tail end of the engaging part (20); Along the thickness direction, the fixing part (30) is provided corresponding to the tail end of the blocking part (10) that is away from the blocking structure (11); Along the thickness direction, the engaging portion (20) protrudes from the fixing portion (30) in a direction away from the blocking portion (10).

10. The chain tooth according to any one of claims 1 to 9, characterized in that, The shielding part (10) and the engaging part (20) are integral injection molded structures.

11. An article having chain teeth, characterized in that, The article includes fabric (02), core thread (03) and chain teeth (01) as described in any one of claims 1 to 10. The core wire (03) is respectively located at the edges of both sides of the fabric (02), and a plurality of chain teeth (01) are fixed along the extension direction of the core wire (03) at each edge of the fabric (02) where the core wire (03) is located and wrap the core wire (03). The engagement structure (21) of the chain tooth (01) on one side of the edge engages with the engagement structure (21) of the chain tooth (01) on the other side of the edge, wherein the blocking structure (11) of the chain tooth (01) on one side of the edge and the blocking structure (11) of the chain tooth (01) on the other side of the edge are misaligned along the extension direction of the edge.

12. The article according to claim 11, characterized in that, The shielding portion (10) of each of the different chain teeth (01) on each side edge has the same or different dimensions along the width direction.

13. The article according to claim 11, characterized in that, The items are zippers, clothing, or flexible bags.

14. A zipper puller, characterized in that, include: The assembly includes an upper side plate (041), a lower side plate (042), and a connecting post (043). The upper side plate (041) and the lower side plate (042) are spaced apart. The connecting post (043) is fixed between the upper side plate (041) and the lower side plate (042) and is located in the front end area of ​​the zipper pull (04). The space between the upper side plate (041) and the lower side plate (042) is used to accommodate a chain tooth (01). The chain tooth (01) is the chain tooth (01) as described in any one of claims 1 to 10. The lower side plate (042) has edges (0421) protruding towards the upper side plate (041) on both sides along the width direction, and the side of the upper side plate (041) facing the lower side plate (042) is planar.