Positioning zipper

Abstract

The utility model provides a positioning zipper which comprises a zipper tooth device and a puller device, the zipper tooth device comprises a conventional area and a specific area, and specific teeth arranged in the specific area are different from conventional teeth arranged in the conventional area in the aspects of tooth angle and / or tooth spacing and / or tooth hardness. And the meshing force is changed when the puller device is meshed with the teeth in the conventional area and the specific area. According to the positioning zipper, by changing the angle, the distance and the hardness of the teeth in the specific area, the meshing force of the puller in a conventional area and the meshing force of the puller in the specific area are different, a user achieves the positioning reminding function of the zipper through hand feeling changes, and the use safety, the positioning accuracy, the durability and the applicability of the zipper are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing accessories, in particular to a positioning zipper. Background Art

[0002] Metal zippers are mainly composed of metal teeth, cloth tape, ribs, pull heads, upper and lower stops, etc. The chain teeth are fixed on the ribs of the cloth tape at a certain interval. The chain tooth peaks and chain tooth sockets are meshed with each other through the zipper head, thereby realizing the function of closing the zipper.

[0003] Positioning zippers refer to the zipper sliders that have different positioning areas when the slider slider slides. They are used in scenarios where the zipper requires positioning. The current common zippers will have several inconveniences when used:

[0004] 1. When the zipper is pulled to the top, there is no relevant reminder function, so the force is too great, and the chain teeth may get stuck in the neck skin and cause damage to the body;

[0005] 2. For special users, such as troops, students and other specific uniforms with standard dress height requirements, since the pull head has no fixed force point, it is difficult to achieve a unified standard and affect the overall effect.

[0006] Most of the zippers in the prior art do not have a reminder function, and some products use external accessories to perform a product locking process. The Chinese patent application number 201180069547.1 discloses a zipper and a slider with a simple locking mechanism, which realizes the positioning reminder function of the specific area of ​​the zipper by extending the thickness of the teeth in a specific area and increasing the force between the teeth and the upper and lower side walls of the inner cavity of the slider; the Chinese patent application number 201410642271.7 discloses a zipper, which realizes the positioning reminder function of the specific area of ​​the zipper by extending the outer end length of the teeth in a specific area and increasing the force between the teeth and the left and right side walls of the inner cavity of the slider. The inner wall of the slider in the above two patents will still produce significant wear when it contacts the extended or protruding part of the teeth, and when it is pulled multiple times and worn to a certain extent, it may lose the positioning function of the jam. And the zipper is jammed by the cooperation between the slider and the teeth, and when there is a problem with either the slider or the teeth, the positioning function may be affected. In addition, the above-mentioned prior patents mainly achieve this function by adjusting the design on the teeth of the plastic-steel zipper, while the current positioning function means of metal zippers are even scarcer. Utility Model Content

[0007] In view of this, the utility model aims to provide a positioning zipper, which realizes the positioning function of the metal zipper by making changes as simple as possible.

[0008] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0009] A positioning zipper includes a chain tooth device and a pull head device, wherein the chain tooth device includes a regular area and a specific area, and the specific teeth arranged in the specific area are different from the regular teeth arranged in the regular area in terms of tooth angle and / or tooth spacing and / or tooth hardness, so that the bite force of the pull head device changes when it engages with the teeth in the regular area and the specific area.

[0010] Furthermore, when the conventional teeth are engaged, the tooth tip and the other side of the tooth socket are engaged in a non-contact manner, and when the specific teeth are engaged, there is a friction and extrusion process between the tooth tip and the other side of the tooth socket and they can be pulled together.

[0011] Furthermore, the center of the second tooth cusp in the specific tooth is lower than the center of the first tooth cusp in the conventional tooth.

[0012] Furthermore, the inclination angle of the upper surface of the second tooth cusp in the specific tooth is greater than the inclination angle of the upper surface of the first tooth cusp in the conventional tooth.

[0013] Furthermore, a distance between a center line of the second tooth cusp and a center line of the first tooth cusp is H, and a value range of H is 20 to 40 degrees.

[0014] Furthermore, the distance between two adjacent regular teeth in the regular area is different from the distance between two adjacent specific teeth in the specific area.

[0015] Furthermore, the distance between two adjacent regular teeth in the regular area is smaller than the distance between two adjacent specific teeth in the specific area.

[0016] Furthermore, the spacing between two adjacent regular teeth in the regular area is in the range of 1.4-1.5 mm, and the spacing between two adjacent specific teeth in the specific area is in the range of 1.2-1.3 mm.

[0017] Furthermore, the hardness of the occlusal surface of the specific teeth in the specific area is greater than the hardness of the occlusal surface of the regular teeth in the regular area.

[0018] Furthermore, the upper plane of the tooth foot in the conventional tooth is flush with the upper plane of the tooth foot in the specific tooth, and the top surface of the tooth cusp in the conventional tooth is flush with the top surface of the tooth cusp in the specific tooth.

[0019] Compared with the prior art, the positioning zipper described in the utility model has the following advantages:

[0020] (1) The positioning zipper described in the utility model changes the angle, spacing and hardness of the teeth in a specific area so that the bite force of the slider in the regular area and the specific area is different. The user can realize the positioning reminder function of the zipper through the change in hand feel, thereby improving the safety of use, positioning accuracy, durability and applicability of the zipper.

[0021] (2) The positioning zipper described in the utility model has a simpler structure and can achieve the positioning effect only through the cooperation between the teeth, which reduces the complexity of parts and components, reduces manufacturing costs, achieves functional optimization, has a wider applicability and a longer service life, and brings a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a principle diagram of the positioning zipper according to the embodiment of the utility model realizing the positioning function of the metal zipper;

[0024] Figure 2 It is a schematic side view of the structure of the metal teeth according to the embodiment of the utility model;

[0025] Figure 3 It is a left-side structural schematic diagram of the metal tooth described in the embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the side view structure of the metal tooth according to the embodiment of the utility model from a second viewing angle;

[0027] Figure 5 It is a schematic diagram of the structure of conventional tooth meshing in the embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of the meshing of specific teeth in the embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of conventional teeth in an embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of the structure of a specific tooth in an embodiment of the utility model;

[0031] Fig. 9 It is a schematic diagram of the comparative structure of conventional teeth and specific teeth in the embodiment of the utility model;

[0032] Fig.10 This is a schematic diagram of a structure in which the bite force is changed by reducing the spacing in a specific area in an embodiment of the utility model;

[0033] Fig.11 for Fig.10 Schematic diagram of the structure of meshing in a specific area with reduced center spacing;

[0034] Description of reference numerals:

[0035] Chain tooth device 100, general area 101, specific area 102, general tooth a, specific tooth b, tooth foot 1, first tooth foot 1a, second tooth foot 1b, tooth socket edge 2, first tooth socket edge 2a, second tooth socket edge 2b, tooth tip 3, first tooth tip 3a, second tooth tip 3b, tooth tip upper surface 4, first tooth tip upper surface 4a, second tooth tip upper surface 4b, tooth tip lower surface 5, first tooth tip lower surface 5a, second tooth tip lower surface 5b, tooth tip top surface 6, first tooth tip top surface 6a, second tooth tip top surface 6b, tooth socket 7, slider device 200. DETAILED DESCRIPTION

[0036] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0037] It should be noted that all terms used in the present invention for directional and positional indications, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "lower", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection conditions between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] Example 1

[0041] like Figures 1 to 11 As shown, the utility model discloses a positioning zipper, including a chain tooth device 100 and a pull head device 200, the chain tooth device 100 includes a regular area 101 and a specific area 102, the specific teeth b arranged in the specific area 102 are different from the regular teeth a arranged in the regular area 101 in terms of tooth angle and / or tooth spacing and / or tooth hardness, so that the bite force of the pull head device 200 changes when it meshes with the teeth in the regular area 101 and the specific area 102.

[0042] The applicant found in the research that the current positioning function of zippers is mainly achieved by adjusting the design of the teeth of plastic steel zippers, and the positioning function of metal zippers is extremely rare. The applicant conducted in-depth research on the characteristics of metal zipper teeth, aiming to achieve the positioning function of metal zippers by making the changes as simple as possible. Figure 1 The disclosed principle structure, the applicant proposed to achieve the change of the bite force of the teeth in different areas by changing the bite force of the teeth in some areas, and achieve the jamming and positioning effect of the specific area through the different hand feel caused by the different bite force. The existing metal zipper tooth structure generally includes a tooth foot 1, a tooth socket edge 2, a tooth tip 3, a tooth tip upper surface 4, a tooth tip lower surface 5, a tooth tip top surface 6 and a tooth socket 7, and its functions are as follows:

[0043] Tooth cusp 3: After the teeth on both sides are occluded, it is positioned in the tooth socket 7 on the other side;

[0044] The lower surface of the tooth tip 5: when the teeth on both sides are opened and closed, there is a certain friction and sliding between the lower surface of the tooth tip 5 on one side and the edge of the tooth socket 2 on the other side to play the opening and closing function;

[0045] The upper surface of the tooth tip 4: when the zipper is engaged, it engages with the tooth socket 7 on the other side to generate a flat pulling force for the zipper;

[0046] Tooth socket 7: Engages with the opposite tooth cusps to produce a flat pull force on the zipper;

[0047] Tooth socket side 2: When the teeth on both sides are opened and closed, there is a certain friction and sliding between the tooth socket side 2 on one side and the tooth tip 3 on the other side to play the opening and closing function;

[0048] Tooth foot 1: The teeth are fixed on the belt and the reinforcement is subjected to force;

[0049] Tooth spacing: the distance between two teeth; if the tooth spacing is too large, the tooth tip 3 cannot enter the opposite tooth socket 7, and the teeth on both sides have no bite force; if the tooth spacing is too small, there is no sliding space between the tooth tip 3 and the other side of the tooth socket 2, and the opening and closing functions cannot be achieved.

[0050] Based on the above-mentioned metal zipper tooth structure, the applicant creatively proposed to achieve changes in the bite force of the teeth in different areas by changing the tooth angle and / or the tooth spacing and / or the tooth hardness, so that the user feels different when pulling the slider device 200 in the regular area 101 and the specific area 102, achieving a jamming and positioning effect, thereby realizing a positioning reminder function.

[0051] The positioning zipper disclosed in the present application changes the angle, spacing and hardness of the teeth in a specific area so that the bite force of the slider in a regular area and a specific area is different. The user can realize the positioning reminder function of the zipper through the change in hand feel, thereby improving the safety of use, positioning accuracy, durability and applicability of the zipper.

[0052] As a preferred example of the present application, when the conventional tooth a is occluded, the tooth tip and the tooth socket are in non-contact occlusion, and when the specific tooth b is occluded, there is a friction and extrusion process between the tooth tip and the other side of the tooth socket and they can be pulled together. The present application performs positioning reminder by changing the tooth angle of the conventional area 101 and the specific area 102, and can be applicable to metal zippers and plastic steel zippers. The positioning reminder function is achieved by dividing the chain teeth into two different shapes, conventional tooth a and specific tooth b. When the conventional tooth a in the conventional area 101 is engaged, the first tooth tip 3a is engaged with the tooth socket on the other side in a non-contact manner, and the first tooth tip 3a and the first tooth socket edge 2a on the other side do not rub or squeeze each other, so there is no engagement resistance when the product is used, and the existing smoothness value is maintained; the size data of the second tooth tip 3b of the specific tooth b set in the specific area 102 changes, and when the chain teeth are engaged, there is a friction and squeezing process between the second tooth tip 3b and the tooth socket edge on the other side, and the final result of the process also achieves the zipper closing and use effect, but due to the friction and squeezing between the tooth tip and the second tooth socket edge 2b on the other side during the process, the process force during use is more than twice the force when the conventional tooth a is closed. When the conventional teeth a in the conventional area 101 are pulled together, the hand immediately has different forces to remind the user when it reaches the specific teeth b in the specific area 102, and the pull head device 200 has reached the positioning requirement point or a certain risky area, and the above operation can be stopped. As a preferred example of the present application, the upper plane of the tooth foot 1 in the conventional tooth a is flush with the upper plane of the tooth foot 1 in the specific tooth b, and the top surface 6 of the tooth tip in the conventional tooth a is flush with the top surface 6 of the tooth tip in the specific tooth b, so that the conventional teeth a and the specific teeth b in the positioning zipper are almost consistent in appearance, improving the user experience.

[0053] This setting successfully realizes the positioning reminder function of the zipper by adopting a structural design with different tooth sizes in the regular area 101 and the specific area 102, which not only improves the safety and comfort of use, but also meets the application requirements of specific scenarios and has high durability and reliability.

[0054] As a preferred example of this application, Figure 5 and Figure 7 When the first tooth feet 1a of the teeth on both sides of the conventional tooth a are squeezed against each other in the inner cavity of the slider, the first tooth foot 1a on the left side is slightly squeezed in the inner cavity of the slider because the first tooth cusp 3a is relatively high, and the first tooth feet 1a on both sides of the teeth are naturally squeezed into the tooth socket 7 of the right tooth to achieve the bite function; Figure 6 and Figure 8, the center of the second tooth tip 3b in the specific tooth b is lower than the center of the first tooth tip 3a in the conventional tooth a. When the second tooth feet 1b of the teeth on both sides are squeezed against each other in the inner cavity of the slider, the second tooth tip 3b of the left tooth cannot naturally enter the tooth socket 7 of the right tooth. The second tooth tip 3b will first hit the second tooth socket edge 2b, and then the user needs to increase the force to overcome the blocking and squeezing of the second tooth socket edge 2b on the second tooth tip 3b, so that the second tooth tip 3b gradually slides into the corresponding tooth socket 7 to achieve the meshing between the two teeth. This setting further defines that the conventional teeth a and the specific teeth b are designed with different tooth tip positions and extrusion methods, so that the slider produces different bite feel when passing through these two areas. When the slider device 200 passes through the conventional teeth a area, the bite process is smooth and there is no resistance change; when entering the specific teeth b area, due to the lower position of the second tooth tip 3b and the need to overcome the obstruction of the second tooth socket edge 2b, the user needs to increase the force. This increase in force gives the user a clear reminder signal. The significant difference in feel helps the user to judge whether the slider device 200 has reached the specific area 102 by feel without relying on visual inspection, so as to meet the reliable positioning requirements. This setting provides a clear positioning reminder function by designing different bite characteristics of the conventional teeth a and the specific teeth b, enhances the safety and accuracy of the zipper use, and maintains the smoothness of daily operation, reduces the wear of the conventional area 101 and enhances the positioning reliability of the specific area 102, and improves the overall durability and applicability of the zipper.

[0055] As a preferred example of the present application, the inclination angle of the second cusp upper surface 4b of the specific tooth b relative to the pulling direction is greater than the inclination angle of the first cusp upper surface 4a of the conventional tooth a relative to the pulling direction. In the example of the present application, the larger the inclination angle of the second cusp upper surface 4b above the second cusp 3b in the specific tooth b, the longer the length of the middle surface of the second cusp upper surface 4b, and the greater the force required to pull the specific tooth b to engage. By increasing the inclination angle of the second cusp upper surface 4b of the specific tooth b, the positioning zipper disclosed in the present application has a more significant positioning reminder function, ensuring that the user can feel a clear force change when pulling the zipper, so as to stop pulling at the appropriate position and prevent the risk of excessive pulling.

[0056] This setting further improves the safety and accuracy of the positioning zipper, while maintaining the smoothness of routine operations. It is suitable for a variety of zipper types and usage scenarios, and has high durability and reliability.

[0057] As a specific example of this application, Fig. 9As shown, the conventional tooth a is compared with the special tooth b. The distance between the second cusp top surface 6b of the second cusp 3b and the center line of the first cusp top surface 6a of the first cusp 3a is H, and the value range of H is 20 to 40 degrees. Compared with the conventional tooth a, the center position of the second cusp top surface 6b of the special tooth b is moved down 20-40 degrees to the second foot 1b. Therefore, when the total height of the cusp 3 remains unchanged, because the cusp top position moves down, the cusp upper surface 4 is longer and more inclined, and the cusp lower surface 5 is shorter and flatter, for example Fig. 9 In the embodiment, the lower surface 5b of the second cusp of the specific tooth b becomes shorter and flatter than the lower surface 5a of the first cusp of the conventional tooth a, and the tooth pit 7 remains unchanged.

[0058] This setting discloses a specific limitation of the relative size change between a specific tooth b and a conventional tooth a. By changing the angle and length of the tooth tip 3, a significant positioning reminder function of the zipper in a specific area is successfully realized. This design not only improves the safety of use and the ability of precise positioning, but also maintains the smoothness of conventional operation, increases the durability and reliability of the zipper, and is suitable for a variety of types of zippers and usage scenarios. In the example of the present application, by having a tooth angle shape different from that of the entire batch of teeth at a specific position on a chain tooth device 100, the different tension values ​​between specific teeth b in a specific area 102 are changed, thereby realizing the positioning reminder function.

[0059] As a preferred example of the present application, the spacing between two adjacent conventional teeth a in the conventional area 101 is different from the spacing between two adjacent specific teeth b in the specific area 102. This setting realizes the change of the bite force between the teeth through the spacing between the specific teeth b in the specific area 102, and can be applied to metal zippers, plastic steel, and nylon zippers. The spacing between adjacent specific teeth b in the specific area 102 is relative to the spacing between adjacent conventional teeth a in the conventional area 101. When the spacing is enlarged, the bite force is reduced, and when the spacing is reduced, the bite force is increased. Therefore, when the pull head device 200 reaches the specific area 102 when closing or opening, the pulling force of the pull head device 200 will change, and different pulling force values ​​will be reflected. The user is reminded that the pull head has reached the position of the specific area 102 by changing the zipper pulling feeling.

[0060] Preferably, the spacing between two adjacent conventional teeth a in the conventional area 101 is smaller than the spacing between two adjacent specific teeth b in the specific area 102. Through the above arrangement, the slider device 200 provides a significant difference in hand feel and mechanical feedback during the closing or opening process, thereby improving the safety and accuracy of use while maintaining the smoothness of conventional operations.

[0061] As a preferred example of the present application, the spacing between two adjacent conventional teeth a in the conventional area 101 ranges from 1.4 to 1.5 mm, and the spacing between two adjacent specific teeth b in the specific area 102 ranges from 1.2 to 1.3 mm. The positioning effect is achieved by reducing the spacing between the specific teeth b in the specific area 102, so that the conventional teeth a can naturally engage on both sides when engaging in the slider; in the specific area 102, because the spacing between the teeth is reduced, when the tooth feet 1 are squeezed against each other in the inner cavity of the slider, the tooth tip 3 will first touch the tooth socket edge 2, and then the user needs to increase the force to overcome the blocking and squeezing of the tooth socket edge 2 on the tooth tip 3 so that the tooth tip 3 gradually slides into the corresponding tooth socket 7, thereby achieving the engagement between the two teeth in the specific area 102. This setting still uses the force used in the pulling and closing process of the specific area 102 to be significantly greater than the force of the conventional tooth spacing in the conventional area 101, thereby achieving the functions of reminder and stop. In the example of the present application, the specific area 102 reduces the tooth spacing to achieve the positioning function, and the zipper smoothness value in the regular area 101 is basically within 3N. Since the tooth distance changes, the bite value of the chain teeth on both sides will reach about 5N, thereby realizing the positioning reminder function.

[0062] As a preferred example of the present application, the hardness of the occlusal surface of the specific tooth b in the specific area 102 is greater than the hardness of the occlusal surface of the conventional tooth a in the conventional area 101. The positioning zipper disclosed in the present application changes the bite force by changing the hardness of the teeth in different areas. The slider needs to be corrected by using the inner cavity of the slider when the slider is pulled closed or opened by gravity so that the teeth on both sides can achieve the use function to achieve the positioning reminder. In the example of the present application, the bite force between the teeth is changed by changing the hardness of the teeth in the specific area 102, which is suitable for metal zippers, plastic steel, and nylon zippers. The specific teeth b in the specific area 102 increase the hardness of the teeth by adding different processes to the surface, and the friction of different hardnesses has different pulling forces and can also achieve the positioning effect; or, the material of the specific teeth b in the specific area 102 is changed. For example, the material of the conventional teeth a in the conventional area 101 can be copper, and the material of the specific teeth b in the specific area 102 can be aluminum, stainless steel, etc. The density of aluminum is 2.7g / cm 3 , the density of stainless steel is 7.70~8.00g / cm 3 The bite degree produced by different materials will produce a certain difference to remind the positioning effect.

[0063] The positioning zipper disclosed in the present application achieves the purpose of reminder and positioning by changing the bite force between the teeth to create different pulling sensations when the slider is pulled to different areas. For the existing zipper structure, the meshing between the teeth is a necessary action for the zipper to close. After multiple generations of design changes, the meshing between the teeth causes very little wear on the teeth themselves, thereby changing the meshing force between the teeth to achieve the positioning and jamming functions. Compared with the contact and extrusion between the inner wall of the slider and the end of the teeth, the degree of wear is smaller, and the service life of the structure that maintains the positioning function is longer.

[0064] The positioning zipper disclosed in the present application achieves the positioning effect only through the cooperation between the teeth. Compared with the cooperation between the slider and the teeth, the functional structure is simpler and it is less likely to have cooperation errors or other cooperation problems.

[0065] The positioning zipper disclosed in the present application has a simpler structure and can achieve the positioning effect only through the cooperation between the teeth, which reduces the complexity of parts and components, reduces manufacturing costs, achieves functional optimization, has a wider applicability and a longer service life, and brings a better user experience.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning zipper, characterized in that: The invention comprises a chain tooth device (100) and a pull head device (200), wherein the chain tooth device (100) comprises a regular area (101) and a specific area (102), and the specific teeth (b) arranged in the specific area (102) differ from the regular teeth (a) arranged in the regular area (101) in terms of tooth angle and / or tooth spacing and / or tooth hardness, so that the bite force of the pull head device (200) changes when the regular area (101) and the specific area (102) are engaged with the teeth.

2. The positioning zipper according to claim 1, characterized in that: When the conventional tooth (a) is engaged, the tooth tip engages with the other side of the tooth socket in a non-contact manner, and when the specific tooth (b) is engaged, there is a friction and extrusion process between the tooth tip and the other side of the tooth socket and the tooth tip can be pulled together.

3. The positioning zipper according to claim 1, characterized in that: The center of the second tooth tip (3b) in the specific tooth (b) is lower than the center of the first tooth tip (3a) in the conventional tooth (a).

4. The positioning zipper according to claim 1, characterized in that: The inclination angle of the upper surface (4b) of the second tooth cusp in the specific tooth (b) is greater than the inclination angle of the upper surface (4a) of the first tooth cusp in the conventional tooth (a).

5. The positioning zipper according to claim 3, characterized in that: The distance between the center line of the second tooth cusp (3b) and the center line of the first tooth cusp (3a) is H, and the value range of H is 20 to 40 micrometers.

6. The positioning slide fastener according to claim 1, characterized in that: The distance between two adjacent regular teeth (a) in the regular area (101) is different from the distance between two adjacent specific teeth (b) in the specific area (102).

7. The positioning zipper according to claim 1, characterized in that: The distance between two adjacent regular teeth (a) in the regular area (101) is smaller than the distance between two adjacent specific teeth (b) in the specific area (102).

8. The positioning slide fastener according to claim 7, characterized in that: The spacing between two adjacent regular teeth (a) in the regular area (101) ranges from 1.4 to 1.5 mm, and the spacing between two adjacent specific teeth (b) in the specific area (102) ranges from 1.2 to 1.3 mm.

9. The positioning zipper according to claim 1, characterized in that: The hardness of the occlusal surface of the specific tooth (b) in the specific area (102) is greater than the hardness of the occlusal surface of the regular tooth (a) in the regular area (101).

10. The positioning slide fastener according to claim 1, characterized in that: The upper plane of the tooth foot (1) in the conventional tooth (a) is flush with the upper plane of the tooth foot (1) in the specific tooth (b), and the top surface (6) of the tooth tip in the conventional tooth (a) is flush with the top surface (6) of the tooth tip in the specific tooth (b).

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