CN116831361A

CN116831361A - Zipper structure, processing method of zipper structure and zipper

Info

Publication number: CN116831361A
Application number: CN202310924933.9A
Authority: CN
Inventors: 戴红初
Original assignee: Zhejiang Huashengda Zipper Technology Co ltd
Current assignee: Zhejiang Huashengda Zipper Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-10-03

Abstract

The application belongs to the technical field of zippers, and particularly relates to a zipper structure, a processing method of the zipper structure and a zipper. Wherein the zipper structure comprises a cloth belt, zipper teeth and a first suture. The cloth belt is provided with a bearing surface; the chain teeth are injection molded on the bearing surface, and part of the chain teeth extend out of the edge of the bearing surface; the first suture is connected with the cloth belt, and the first suture is also connected with the chain teeth. The fastener elements are injection molded through the injection molding process and fixed on the bearing surface of the cloth belt, so that the surface of the cloth belt, which is away from the bearing surface, is a complete plane, and the first stitching lines are respectively connected with the cloth belt and the fastener elements, so that the surface of the cloth belt, which is away from the bearing surface, can be conveniently subjected to processing such as printing, waterproof film pasting and the like, and the connection of the cloth belt and the fastener elements can be reinforced, and the fastener elements are prevented from falling off from the cloth belt due to insufficient binding force between the fastener elements connected through injection molding.

Description

Zipper structure, processing method of zipper structure and zipper

Technical Field

The application relates to the technical field of zippers, in particular to a zipper structure, a processing method of the zipper structure and a zipper.

Background

The two cloth belts of the zipper are connected to the edge of the opening (such as clothes or a bag opening), and the metal chain teeth or the plastic chain teeth on the two cloth belts can be meshed by pulling the pull head so as to close the opening. The traditional zipper is a double-sided zipper, namely, the zipper teeth are arranged on two sides of a cloth belt in the zipper, and after an opening is closed by the double-sided zipper, the zipper teeth on the zipper can be exposed outside.

Because both sides of the cloth belt of the traditional zipper are provided with the zipper teeth, the processing of the process such as printing and sticking a waterproof film on the surface of the cloth belt is very inconvenient.

Disclosure of Invention

The embodiment of the application aims to provide a zipper structure, a processing method of the zipper structure and a zipper, so that the surface of a cloth belt in the zipper structure is conveniently processed by printing, sticking a waterproof film and other processes.

In a first aspect, the technical solution adopted in the embodiment of the present application is: a zipper structure comprises a cloth belt, zipper teeth and a first suture.

The cloth belt is provided with a bearing surface; the chain teeth are injection molded on the bearing surface, and part of the chain teeth extend out of the edge of the bearing surface; the first suture is connected with the cloth belt, and the first suture is also connected with the chain teeth.

The zipper structure provided by the application has the beneficial effects that: the fastener elements are injection molded through the injection molding process and fixed on the bearing surface of the cloth belt, so that the surface of the cloth belt, which is away from the bearing surface, is a complete plane, and the first stitching lines are respectively connected with the cloth belt and the fastener elements, so that the surface of the cloth belt, which is away from the bearing surface, can be conveniently subjected to processing such as printing, waterproof film pasting and the like, and the connection of the cloth belt and the fastener elements can be reinforced, and the fastener elements are prevented from falling off from the cloth belt due to insufficient binding force between the fastener elements connected through injection molding.

In some embodiments, the zipper structure further comprises a wire core, wherein the wire core is positioned on the bearing surface, the wire core is connected with the cloth belt, and the zipper teeth are wrapped outside the wire core.

In some embodiments, the distance between the wire core and the edge is 0.8mm to 1.2mm.

In some embodiments, the fastener element is provided with a receiving portion in which the first suture is received such that the first suture is lower than the fastener element in a height direction of the fastener element relative to the bearing surface.

In some embodiments, the accommodating portion is a groove concavely arranged on one surface of the fastener element, which is away from the cloth belt; or, the accommodating part is a hole penetrating the fastener element.

In some embodiments, the edge extends along a first direction, the plurality of teeth is provided, and the plurality of teeth is spaced along the first direction;

the tooth comprises a tooth body, two bosses and a meshing head, wherein the tooth body is attached to the bearing surface, the meshing head and the bosses are connected with the tooth body, the meshing head and the bosses are located on the same side of the tooth body, the meshing head extends out of the edge, and in the first direction, the two bosses are located on two sides of the meshing head respectively.

In some embodiments, the engagement head includes a protrusion and a recess located between the protrusion and the dental body, the recess being recessed from the protrusion in the first direction and the recess being recessed from the protrusion in a direction opposite the first direction.

In some embodiments, at least two penetrating holes are formed in the cloth belt, the fastener element is located between two adjacent penetrating holes, and the first suture is penetrated in the penetrating holes.

In a second aspect, the technical solution adopted in the embodiment of the present application is: the processing method of the zipper structure of the embodiment of the first aspect comprises the steps of injecting the zipper teeth on the bearing surface, so that part of the zipper teeth extend out of the edge of the bearing surface; and stitching and reinforcing the cloth belt and the zipper teeth by using the first stitching.

The processing method of the zipper structure provided by the application has the beneficial effects that: the zipper teeth in the processed zipper structure are injection molded and fixed on the bearing surface of the cloth belt, so that the surface of the cloth belt, which is away from the bearing surface, is a complete plane, and the surface of the cloth belt, which is away from the bearing surface, is convenient for carrying out technological processing such as printing, waterproof film pasting and the like. The connection of the cloth belt and the chain teeth is reinforced by the first suture, so that the chain teeth are prevented from falling off the cloth belt due to insufficient binding force between the chain teeth connected by injection molding and the cloth belt.

In a third aspect, the technical solution adopted in the embodiment of the present application is: a zipper comprising a slider and two zipper constructions of the above first aspect embodiments.

The teeth in one of the zipper structures are adapted to the teeth in the other of the zipper structures.

The zipper provided by the application has the beneficial effects that: the zipper teeth on the two zipper structures can be separated or meshed with each other by pulling the pull head so as to realize the opening and closing of the zipper. By applying the zipper structure of the embodiment of the first aspect to the zipper of the embodiment of the application, the surface of the zipper facing away from the zipper teeth is a complete plane, so that the surface of the zipper facing away from the zipper teeth can be conveniently subjected to printing, waterproof film pasting and other technological processing. And the first suture is connected with the cloth belt and the chain teeth respectively, so that the connection between the cloth belt and the chain teeth can be reinforced, and the chain teeth are prevented from being pulled off from the cloth belt when the pull head is pulled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a zipper construction in one embodiment of the application;

FIG. 2 is a schematic view of the structure of the zipper (without slider) in one embodiment of the application;

fig. 3 is a schematic view of the structure of the fastener element in the slide fastener structure shown in fig. 1.

Reference numerals:

1. cloth belt; 11. a bearing surface; 2. a fastener element; 21. a tooth body; 211. an accommodating portion; 22. a boss; 23. an engagement head; 231. a protruding portion; 232. a groove portion; 3. a first suture; 4. a wire core.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The two cloth belts of the zipper are connected to the edge of the opening (such as clothes or a bag opening), and the metal chain teeth or the plastic chain teeth on the two cloth belts can be meshed by pulling the pull head so as to close the opening. The traditional zipper is a double-sided zipper, namely, the zipper teeth are arranged on two sides of a cloth belt in the zipper, and after an opening is closed by the double-sided zipper, the zipper teeth on the zipper can be exposed outside. Because both sides of the cloth belt are provided with the chain teeth, the process processing such as printing, sticking a waterproof film and the like on the surface of the cloth belt is very inconvenient.

In the prior art, the teeth on the nylon zipper are formed by continuous extrusion, the teeth heads are smaller, so that the flat pull strength of the nylon zipper is lower, the problems of chain explosion and the like are easy to occur, the teeth of the plastic steel are formed by plastic injection molding, the teeth heads are large, the problems of lower flat pull strength of the zipper and easy chain explosion are well improved, but the binding force of the teeth and a cloth belt is obviously insufficient, and the teeth are easy to fall off from the cloth belt. The zipper structure provided by the embodiment of the application adopts an injection molding and sewing method, so that the problems can be well solved.

In order to describe the technical scheme of the application, the following description is made with reference to specific drawings and embodiments.

Referring to fig. 1, an embodiment of the present application provides a zipper structure including a cloth tape 1, fastener elements 2 and a first suture 3.

The cloth belt 1 is provided with a bearing surface 11; the chain teeth 2 are injection molded on the bearing surface 11, and part of the chain teeth 2 extend out of the edge of the bearing surface 11; the first suture 3 is connected with the cloth belt 1, and the first suture 3 is also connected with the chain tooth 2.

According to the zipper structure provided by the application, the zipper teeth 2 are injection molded through an injection molding process, and the zipper teeth 2 are fixed on the bearing surface 11 of the cloth belt 1, so that the surface of the cloth belt 1, which is away from the bearing surface 11, is a complete plane, and the first stitching threads 3 are respectively connected with the cloth belt 1 and the zipper teeth 2, so that the processing such as printing, waterproof film sticking and the like can be conveniently carried out on the surface of the cloth belt 1, which is away from the bearing surface 11, and the connection between the cloth belt 1 and the zipper teeth 2 can be reinforced, and the zipper teeth 2 are prevented from falling off from the cloth belt 1 due to insufficient binding force between the zipper teeth 2 and the cloth belt 1, which are connected through injection molding.

Referring to fig. 2, the zipper comprises two zipper structures, wherein the two zipper structures are arranged in parallel, and when the teeth 2 on the two zipper structures are meshed in a staggered manner, the zipper can be closed. In the zipper structure of the embodiment of the application, part of the zipper teeth 2 extend out of the edge of the bearing surface 11, and by the arrangement, when the zipper formed by the two zipper structures of the embodiment of the application is pulled, the zipper teeth 2 on the two zipper structures can be better corresponding and meshed without being blocked by the cloth belt 1.

Alternatively, the material of the element 2 may be one of a nylon material, a resin material, or a metal material.

In some embodiments, the zipper structure further comprises a wire core 4, the wire core 4 is located on the bearing surface 11, the wire core 4 is connected with the cloth belt 1, and the zipper teeth 2 are wrapped outside the wire core 4.

By arranging the wire core 4, the contact area of the chain element 2 with the cloth belt 1 and the wire core 4 can be increased, so that the bonding strength of the injection molded chain element 2 with the cloth belt 1 and the wire core 4 is enhanced, the stability of the chain structure of the embodiment of the application is further improved, and the possibility that the chain element 2 falls off from the cloth belt 1 is reduced.

Optionally, the core 4 is stitched to the tape 1 by a second stitch (not shown).

Alternatively, the core 4 may be integrally woven with the tape 1.

Referring to fig. 2, the length of the fastener element 2 extending out of the edge of the carrying surface 11 may be adjusted, so that after the zipper formed by the two zipper structures according to the embodiments of the present application is closed, the edges of the two cloth strips 1 in the zipper can be aligned, and the two cloth strips 1 are not extruded, so that the two cloth strips 1 can be spliced at the side edges of the fastener element 2 to form a complete and flat plane. Because the wire core 4 is connected with the cloth belt 1, the chain teeth 2 are wrapped outside the wire core 4, and accordingly, when the length of the edge of the bearing surface 11 extending out of the chain teeth 2 is adjusted, the position of the wire core 4 is also required to be adjusted, and the distance between the wire core 4 and the edge of the bearing surface 11 is changed.

Optionally, the distance between the wire core 4 and the edge of the carrying surface 11 is 0.8 mm-1.2 mm. By the arrangement, after the zipper formed by the zipper structures of the two embodiments of the application is pulled and closed, the edges of the two cloth belts 1 in the zipper can be aligned, and the two cloth belts 1 are not extruded mutually, so that the two cloth belts 1 can be spliced on the side edges of the zipper teeth 2 to form a complete and flat plane. If patterns are printed on the cloth belt 1, the smooth plane can not influence the attractiveness of the patterns; if the cloth belt 1 is stuck with a waterproof film, the flat plane can not influence the waterproof performance of the zipper.

Referring to fig. 1, in some embodiments, at least two through holes (not shown) are provided on the cloth tape 1, the fastener element 2 is located between two adjacent through holes, and the first suture 3 is threaded through the through holes.

Through the arrangement, the fastener element 2 is positioned between two adjacent penetrating holes, and the first suture 3 sequentially penetrates through the penetrating holes. So that a portion of the first thread 3 can be wound around the fastener element 2, a portion of the first thread 3 being located on the side of the tape 1 facing away from the carrying surface 11. The first suture 3 is tensioned, the fastener element 2 and the cloth belt 1 can be fixedly connected, and the fastener element 2 and the cloth belt 1 are connected more simply and conveniently.

In some embodiments, the edges of the tape 1 extend in a first direction, the fastener elements 2 are provided in plurality, and the plurality of fastener elements 2 are provided at intervals in the first direction; the penetrating holes are arranged in a plurality of ways, and the penetrating holes are arranged at intervals along the first direction.

For example, in fig. 2, the first direction is parallel to the up-down direction.

Optionally, the first suture 3 includes a fixed section and a connecting section that are staggered in the first direction, the fixed section is wound on the outer side of the fastener element 2, and two ends of the fixed section respectively penetrate through penetrating holes on two sides of the fastener element 2, the connecting section is located on one side of the cloth belt 1 away from the fastener element 2, and the connecting section respectively connects the ends of two adjacent fixed sections.

Although the first thread 3 winds the fastener element 2 and the tape 1, the fastener element 2 can be fixed to the tape 1. However, most of the first stitches 3 wrapping the fastener elements 2 and the tape 1 are left bare outside. The first thread 3, which is exposed outside, is easily broken by friction by the slider, and particularly the first thread 3 located on the surface of the element 2.

Referring to fig. 1, in some embodiments, the fastener element 2 is provided with a receiving portion 211, and the first suture 3 is received in the receiving portion 211, such that the first suture 3 is lower than the fastener element 2 in a height direction of the fastener element 2 relative to the bearing surface 11.

Through the above-mentioned setting for partial first suture 3 can hold in holding portion 211 to can hide partial first suture 3, with the area that reduces first suture 3 naked hourglass outside, thereby can reduce the friction that first suture 3 received, and then reduce the possibility that first suture 3 breaks.

Referring to fig. 1, optionally, at least two accommodating portions 211 may be provided, and the at least two accommodating portions 211 are spaced apart along a direction in which the fastener element 2 extends out of the edge of the bearing surface 11. Accordingly, the number of first sutures 3 is the same as the number of accommodating portions 211. By the above arrangement, the fastener element 2 can be more stably fixed to the tape 1.

Alternatively, the connection firmness of the fastener element 2 to the tape 1 can be enhanced by increasing the number of the accommodating portion 211 and the first stitches 3.

Alternatively, the accommodating portion 211 is a groove concavely arranged on one surface of the fastener element 2 away from the cloth belt 1; alternatively, the accommodating portion 211 is a hole penetrating the element 2.

Referring to fig. 1 and 3, in some embodiments, the fastener element 2 includes a tooth body 21, two bosses 22 and an engaging head 23, the tooth body 21 is attached to the bearing surface 11, the engaging head 23 and the bosses 22 are connected to the tooth body 21, the engaging head 23 and the bosses 22 are located on the same side of the tooth body 21, the engaging head 23 protrudes from an edge, and in a first direction, the two bosses 22 are located on two sides of the engaging head 23.

The engaging head 23 and the boss 22 are connected with the tooth body 21, and the engaging head 23 and the boss 22 are positioned on the same side of the tooth body 21, so that the connection strength between the tooth body 21 and the engaging head 23 can be enhanced, the engaging head 23 is not easy to break, and the defect that the zipper structure of the embodiment of the application is easy to damage in the using process is overcome. In addition, by providing the boss 22, it is possible to prevent the element 2 engaged with each other from being displaced in the thickness direction of the tape 1 when the slide fastener composed of the two slide fastener structures of the embodiment of the present application is pulled. Referring to fig. 2, when the slide fastener is closed, the elements 2 of two slide fastener structures are engaged with each other, that is, the element 2 of one slide fastener structure is engaged between two adjacent elements 2 of the other slide fastener structure. That is, after the slide fastener is closed, the boss 22 is located between the engaging head 23 and the tape, and the engaging head 23 is prevented from moving in a direction approaching the tape 1 with respect to the element body 21, so that the element 2 engaged with each other can be prevented from being displaced in the thickness direction of the tape 1.

Referring to fig. 3, the accommodating portion 211 is disposed on the dental body 21.

In some embodiments, the engagement head 23 includes a protrusion 231 and a groove 232, the groove 232 being located between the protrusion 231 and the dental body 21, the groove 232 being recessed from the protrusion 231 in a first direction, the groove 232 being recessed from the protrusion 231 in a direction opposite to the first direction.

In a specific application, after the zipper structures of the two embodiments of the application are zipped, the zipper teeth 2 on the two zipper structures are meshed in a staggered manner. Referring to fig. 2 and 3, the two zipper structures are a first zipper structure and a second zipper structure, respectively, the fastener element 2 on the first zipper structure is a first fastener element, and the fastener element on the second zipper structure is a second fastener element. The staggered engagement of the elements 2 on the two zipper structures means that two adjacent first elements on the first zipper structure are positioned at two sides of one second element on the second zipper structure, and the protruding parts 231 on the two first elements are respectively engaged with the groove parts 232 on the second element, thereby realizing the staggered engagement on the two zipper structures.

In a second aspect, the technical solution adopted in the embodiment of the present application is: a method for manufacturing a zipper structure according to the embodiment of the first aspect includes:

s100: the element 2 is injection molded to the bearing surface 11 such that a portion of the element 2 protrudes beyond the edge of the bearing surface 11.

Specifically, the tape 1 is placed in a mold, and then the raw material injection molding element 2 is injected into the mold. The injection molding tooth 2 has large tooth head, can well improve the problems of lower flat pull strength of the zipper and easy chain explosion. And the chain element 2 is directly injection-molded on the bearing surface 11, so that the mutual connection of the chain element 2 and the cloth belt 1 can be realized while the chain element 2 is molded, the step of connecting the chain element 2 and the cloth belt 1 is simplified, the positioning of the chain element 2 is more convenient, and the preparation is made for subsequent sewing.

S200: the cloth tape 1 and the fastener element 2 are sewn and reinforced by using a first suture 3.

Specifically, the end of the first thread 3 is moved in the first direction, and the end of the first thread 3 is repeatedly threaded through the tape 1 during the movement, so that a part of the first thread 3 is wound around the outside of the fastener element 2 and a part of the first thread is located on the side of the tape 1 facing away from the fastener element 2.

Alternatively, the reinforcement may be manually stitched, or may be machine stitched.

The zipper teeth 2 in the zipper structure processed by the processing method provided by the application are injection molded and fixed on the bearing surface 11 of the cloth belt 1, so that the surface of the cloth belt 1 facing away from the bearing surface 11 is a complete plane, and the processing such as printing, waterproof film pasting and the like is conveniently carried out on the surface of the cloth belt 1 facing away from the bearing surface 11. The connection of the tape 1 and the fastener elements 2 is reinforced with the first stitches 3 to prevent the fastener elements 2 from falling off the tape 1 due to insufficient binding force of the fastener elements 2 and the tape 1 connected by injection molding. In addition, in the implementation process of the processing method, the fastener elements 2 are firstly injection-molded on the cloth belt 1, so that the positions of the fastener elements 2 are convenient to determine and fix, and the fastener elements 2 can be prevented from moving relative to the cloth belt 1 when the cloth belt 1 and the fastener elements 2 are reinforced by the first suture lines 3.

In some embodiments, the core 4 is sewn to the bearing surface 11 of the tape 1 with a second stitch prior to injection molding the element 2, and the element 2 is wrapped around the core 4 when the element 2 is injection molded to the bearing surface 11.

Through the steps, the contact area of the chain element 2 with the cloth belt 1 and the wire core 4 can be increased, so that the bonding strength of the injection molded chain element 2 with the cloth belt 1 and the wire core 4 is enhanced, the stability of the chain structure of the embodiment of the application is further improved, and the possibility that the chain element 2 falls off from the cloth belt 1 is reduced.

Specifically, the tape 1 and the core 4 are woven together with a webbing loom.

In some embodiments, after the cloth tape 1 and the fastener element 2 are sewn and reinforced by using the first stitching 3, the zipper structure is further ironed.

In a specific embodiment, the processing method of the zipper structure in the embodiment of the application comprises the following steps: firstly, sewing the cloth belt 1 and the wire core 4 together by using a second suture, then placing the cloth belt 1 with the wire core 4 in a mould, then injecting raw materials into the mould to mold the fastener elements 2, sewing and reinforcing the cloth belt 1 and the molded fastener elements 2 by using a first suture 3, and finally obtaining a finished product of the zipper structure after auxiliary processes such as ironing and the like.

The element 2 in one of the zipper structures is adapted to the element 2 in the other zipper structure.

In the zipper provided by the embodiment of the application, the zipper teeth 2 on the two zipper structures can be separated or meshed with each other by pulling the slider, so that the opening and closing of the zipper are realized. By applying the zipper structure of the embodiment of the first aspect to the zipper of the embodiment of the application, the surface of the zipper facing away from the zipper teeth 2 is a complete plane, so that the surface of the zipper facing away from the zipper teeth 2 is subjected to printing, waterproof film pasting and other technological processing. And the first suture 3 is respectively connected with the cloth belt 1 and the chain teeth 2, so that the connection between the cloth belt 1 and the chain teeth 2 can be reinforced, and the chain teeth 2 are prevented from being pulled off from the cloth belt 1 when the pull head is pulled.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A zipper structure, comprising:

a cloth belt with a bearing surface;

the chain teeth are injection-molded on the bearing surface, and part of the chain teeth extend out of the edge of the bearing surface;

and the first suture is connected with the cloth belt and is also connected with the chain teeth.

2. The zipper structure of claim 1, further comprising a core located on the bearing surface, the core being connected to the tape, the fastener elements being wrapped around the core.

3. The zipper structure of claim 2, wherein the distance between the core and the edge is 0.8mm to 1.2mm.

4. The slide fastener structure according to claim 1, wherein the fastener element is provided with a receiving portion, and the first thread is received in the receiving portion such that the first thread is lower than the fastener element in a height direction of the fastener element with respect to the bearing surface.

5. The zipper structure according to claim 4, wherein the accommodating portion is a groove concavely provided on one surface of the fastener element facing away from the tape; or, the accommodating part is a hole penetrating the fastener element.

6. The slide fastener structure according to any one of claims 1 to 5, wherein the edge extends in a first direction, a plurality of the fastener elements are provided, and a plurality of the fastener elements are provided at intervals in the first direction;

7. The zipper structure of claim 6, wherein the engagement head includes a projection and a groove portion, the groove portion being located between the projection and the tooth body, the groove portion being recessed from the projection in the first direction and the groove portion being recessed from the projection in a direction opposite the first direction.

8. A zipper structure according to any one of claims 1 to 5, wherein at least two through holes are provided in the tape, the fastener element is located between two adjacent through holes, and the first thread is provided through the through holes.

9. A method of manufacturing a slide fastener structure according to any one of claims 1 to 8, comprising:

injecting the chain teeth on the bearing surface so that part of the chain teeth extend out of the edge of the bearing surface;

and stitching and reinforcing the cloth belt and the zipper teeth by using the first stitching.

10. A slide fastener, comprising:

a pull head;

the two fastener constructions of any one of claims 1 to 8, wherein the fastener element of one of the fastener constructions is adapted to the fastener element of the other fastener construction.