A zipper

Abstract

The utility model discloses a zipper relates to zipper manufacturing technical field, and the zipper includes: the parallel setting of two first belt body, and the side of two first belt body is apart respectively and sets up second belt body, and the second belt body is connected cloth, and the length direction of first belt body interval sets up several chain teeth, and the width direction of chain tooth is set through and is set up and bites the through slot, and the through slot extends to the tail end surface of chain tooth along the length direction of chain tooth, and the through slot includes the first belt body bite area for the first belt body of setting, the second belt body bite area for setting second belt body and cloth clamping area. The above-mentioned zipper has solved the technical problem that the existing zipper is fixed on the cloth through the form of sewing, and the sewing thread is easy to wear and break in the long -term use of zipper, causes the drop of whole zipper, and influences the use experience of zipper.

Description

Technical Field

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

[0002] Zippers are an important component of clothing accessories. A typical zipper consists of teeth, a strap, fabric tape, top and bottom stops, and a slider. A metal zipper, on the other hand, is primarily composed of metal teeth, a strap, fabric tape, top and bottom stops, and a slider. Strapless zippers, lacking fabric tape, are constructed by sewing a single chain of teeth through the strap to the garment fabric.

[0003] However, existing tapeless zippers have the following drawbacks: because tapeless zippers are fixed to the garment fabric by sewing, the seams are prone to wear and breakage over long-term use, causing the entire zipper to fall off, affecting the user experience. Therefore, a zipper designed to solve the above problems is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a zipper that solves the technical problem that existing zippers, which are fixed to the fabric by sewing, are prone to wear and breakage of the seams during long-term use, causing the entire zipper to fall off and affecting the user experience.

[0005] To achieve the above objectives, this utility model provides a zipper, comprising: two first straps arranged side by side, and a second strap on each side of the two first straps facing away from each other, the second straps being connected to fabric, and a plurality of chain teeth spaced apart along the length direction of the first straps, wherein an interlocking groove is provided through the teeth in the width direction, the interlocking groove extending along the length direction of the teeth to the tail end face of the teeth, the interlocking groove including a first strap interlocking area for the first straps to pass through, a second strap interlocking area for the second straps to pass through, and a fabric clamping area.

[0006] Preferably, the first belt engagement area and the second belt engagement area are arranged side by side with intervals, and the second belt engagement area is directly connected to the fabric clamping area.

[0007] Preferably, the upper part of the fabric clamping area is provided with a plurality of first fixing protrusions, and the lower part of the fabric clamping area is provided with a plurality of second fixing protrusions. The first fixing protrusions and the second fixing protrusions are staggered and can interlock with each other.

[0008] Preferably, the head of the chain tooth has an engagement protrusion on one side along the width direction of the chain tooth, and the head of the chain tooth has an engagement groove on the other side along the width direction of the chain tooth that matches the engagement protrusion.

[0009] Preferably, the cross-sections of the first belt and the second belt are circular or near-circular.

[0010] Preferably, the top surface of the head of the chain tooth protrudes beyond the top surface of the tail of the chain tooth, and the bottom surface of the head of the chain tooth protrudes beyond the bottom surface of the tail of the chain tooth.

[0011] Preferably, the top surface of the chain tooth is provided with an upper sidewall, which is used to smoothly connect the top surface of the head of the chain tooth and the top surface of the tail of the chain tooth, and the bottom surface of the chain tooth is provided with a lower sidewall, which is used to smoothly connect the bottom surface of the head of the chain tooth and the bottom surface of the tail of the chain tooth.

[0012] Preferably, the chain teeth are made of metal and are clamped and fixed to the fabric by the interlocking groove.

[0013] Preferably, the second belt is sewn onto the fabric.

[0014] Preferably, the second belt is integrally woven with the fabric.

[0015] Compared to the aforementioned background technology, the zipper provided by this utility model has the following beneficial effects: a through-groove is provided through the width direction of the chain teeth. The through-groove includes a first belt body engagement area, a second belt body engagement area, and a fabric clamping area. The chain teeth are firmly fixed to the first belt body and the second belt body through the first belt body engagement area and the second belt body engagement area, respectively. The second belt body directly connects to the fabric, while the fabric clamping area clamps the fabric. On the basis of maintaining the original normal opening and closing function of the zipper, the stable engagement of the first belt body, the second belt body, and the chain teeth replaces the traditional zipper's method of fixing by simply relying on stitching. This effectively avoids the problem of the zipper falling off the fabric due to the wear and breakage of the stitching during long-term use, improves the stability and reliability of the zipper during use, and makes the user experience of the zipper better. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A three-dimensional structural diagram of the zipper after the zipper pull is concealed, provided in an embodiment of this utility model;

[0018] Figure 2 This is a plan view of the zipper provided in an embodiment of the present utility model;

[0019] Figure 3 A planar schematic diagram of the meshing of the chain teeth on both sides provided in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram illustrating the assembly between the chain teeth and the fabric provided in an embodiment of the present utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the chain teeth provided in an embodiment of the present utility model.

[0022] Specifically, 100-first belt body; 200-second belt body; 300-fabric; 400-chain teeth; 410-interlocking groove; 411-interlocking area of ​​the first belt body; 412-interlocking area of ​​the second belt body; 413-first fixing protrusion; 414-second fixing protrusion; 415-fixing groove; 416-fabric clamping area; 420-upper side wall; 430-lower side wall; 440-interlocking protrusion; 450-interlocking groove; 500-zipper pull; 510-upper cover plate; 520-lower cover plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, to achieve the above objective, this utility model provides a zipper, comprising: two first belt bodies 100 arranged side by side and a second belt body 200 respectively arranged on one side opposite to the two first belt bodies 100, wherein a plurality of chain teeth 400 are spaced apart along the length direction of the first belt body 100, and the chain teeth 400 on one first belt body 100 are staggered with the chain teeth 400 on the other first belt body 100, and the second belt body 200 is used to connect fabric 300.

[0026] A through-groove 410 is provided through the width of the chain teeth 400. The through-groove 410 includes a first belt engagement area 411, a second belt engagement area 412, and a fabric clamping area 416. The chain teeth 400 are firmly fixed to the first belt 100 and the second belt 200 through the first belt engagement area 411 and the second belt engagement area 412, respectively. The second belt 200 is directly connected to the fabric 300, while the fabric clamping area 416 clamps the fabric 300. While maintaining the original normal opening and closing function of the zipper, the first belt 100, the second belt 200, and the fabric 300 are firmly engaged with the chain teeth 400, which replaces the traditional zipper fixation method that relies solely on stitching. This effectively avoids the problem of the zipper falling off the fabric 300 due to the wear and breakage of the stitching during long-term use, improves the stability and reliability of the zipper during use, and makes the zipper user experience better.

[0027] Furthermore, the engagement groove 410 extends along the length of the chain tooth 400 to the tail end face of the chain tooth 400. In the initial state, the end of the engagement groove 410 located at the tail end face of the chain tooth 400 is open and maintains a certain opening angle, making the engagement groove 410 have a V-shaped opening, thus forming a natural guiding space. This facilitates the direct placement of the second belt body 200 into the corresponding second belt body engagement area 412, reducing the operational difficulty of assembling the second belt body 200 with the chain tooth 400, saving assembly time, and reducing accidental damage to the second belt body 200 or the chain tooth 400 during the overall assembly of the zipper, ensuring the integrity of the zipper after assembly. After the second belt body 200 is placed into the corresponding second belt body engagement area 412, the tail end of the chain tooth 400 is further closed by striking or squeezing the tail end of the chain tooth 400, completing the fixed connection between the chain tooth 400 and the fabric 300.

[0028] In some embodiments of this utility model, the first belt engagement area 411 and the second belt engagement area 412 are arranged side by side with intervals. The side by side engagement areas 411 and 412 can provide independent and dedicated engagement spaces for the first belt 100 and the second belt 200 respectively, avoiding mutual interference between the first belt 100 and the second belt 200 when they are engaged and fixed, ensuring the stability of their respective connections, and improving the reliability of the chain teeth 400 when engaging with the first belt 100 and the second belt 200 respectively. On the other hand, the direct connection between the second belt engagement area 412 and the fabric clamping area 416 allows the force to be evenly transmitted from the chain teeth 400 to the fabric clamping area 416 and the fabric 300 when the zipper is subjected to a pulling force, effectively preventing excessive local stress on the zipper and effectively improving the overall firmness of the connection between the zipper and the fabric 300.

[0029] In some specific embodiments, the first belt engagement area 411 and the second belt engagement area 412 are connected, forming a continuous engagement space. This makes the manufacturing of the chain teeth 400 more convenient, eliminating the need for separate grooving operations on the first belt engagement area 411 or the second belt engagement area 412, reducing alignment errors in the manufacturing process, and improving the manufacturing precision of the chain teeth 400. Furthermore, during zipper assembly, the end of the engagement groove 410 located on the tail face of the chain teeth 400 can be closed as much as possible, ensuring that the second belt engagement area 412 tightly wraps around the second belt 200. This makes the connection between the chain teeth 400 and the fabric 300 more secure, improving the overall stability of the zipper structure and effectively extending the zipper's service life.

[0030] Preferably, two limiting protrusions are provided between the first belt body engagement area 411 and the second belt body engagement area 412. On the one hand, the two limiting protrusions can stably confine the first belt body 100 within the first belt body engagement area 411, preventing the first belt body 100 from shifting back and forth along the length direction of the chain teeth 400, effectively ensuring the stability of the zipper structure. On the other hand, when the tail end of the chain teeth 400 is struck or squeezed, causing the engagement groove 410 located at the tail end face of the chain teeth 400 to gradually close, the two limiting protrusions can abut against each other, preventing further compression of the structural shape of the first belt body engagement area 411, thus protecting the structural integrity of the first belt body 100.

[0031] like Figure 3 , Figure 4 and Figure 5As shown, in some embodiments of this utility model, the upper part of the fabric clamping area 416 is provided with a plurality of first fixing protrusions 413, and the specific number of second fixing protrusions 414 is one. The lower part of the fabric clamping area 416 is correspondingly provided with a plurality of second fixing protrusions 414, and the specific number of second fixing protrusions 414 is two. A fixing groove 415 is formed between the two second fixing protrusions 414, and the first fixing protrusions 413 and the second fixing protrusions 414 are arranged in an alternating manner, that is, the first fixing protrusions 413 can be inserted into the fixing groove 415. During the assembly process of the zipper, when the tail end of the metal chain tooth 400 is struck, the chain tooth 400 After the tail end of the zipper is struck, the first fixing protrusion 413 on the upper part of the fabric clamping area 416 will enter the fixing groove 415. At this time, the first fixing protrusion 413 approaches the second fixing protrusion 414 on the lower part of the fabric clamping area 416 and interlocks with each other, so that the first fixing protrusion 413 and the second fixing protrusion 414 are embedded in the corresponding fabric 300, increasing the contact area and friction between the chain teeth 400 and the fabric 300. This effectively avoids the problem of loosening or displacement of the connection between the chain teeth 400 and the fabric due to frequent opening and closing or external pulling during the use of the zipper, improves the firmness of the connection between the chain teeth 400 and the fabric 300, and extends the overall service life of the zipper.

[0032] In some embodiments of this utility model, the head of the chain tooth 400 has an integrally formed engagement protrusion 440 on one side along its width direction, and an engagement groove 450 adapted to the engagement protrusion 440 is formed on the other side of the head of the chain tooth 400 along its width direction. The size and shape of the engagement protrusion 440 match the size and shape of the engagement groove 450, ensuring that the engagement protrusion 440 and the engagement groove 450 can achieve a tight and fitting engagement. When the zipper is closed, two adjacent chain teeth 400 will move closer to each other. At this time, the engagement protrusion 440 of one chain tooth 400 will align and engage with the corresponding engagement groove 450 of the head of the other adjacent chain tooth 400, so that the two adjacent chain teeth 400 are stably connected to form a firm meshing relationship. This effectively avoids the chain teeth 400 from becoming loose or misaligned due to external forces such as pulling and shaking after the zipper is closed, thus improving the sealing and stability of the zipper after closure.

[0033] In some specific embodiments, the cross-sections of the first belt body 100 and the second belt body 200 are designed to be circular or near-circular. This results in smoother contours for the first belt body 100 and the second belt body 200, allowing for smoother engagement with the chain teeth 400. This reduces alignment difficulties and frictional resistance during assembly, making zipper assembly more convenient. Furthermore, it ensures more uniform contact between the first belt body 100 and the second belt body 200 and their corresponding engagement areas 412. When the first belt body 100 and the second belt body 200 are subjected to force, the external force is distributed across the entire contact surface, preventing localized force concentration that could accelerate wear and deformation of the first belt body 100 and the second belt body 200, thereby improving their stability and durability.

[0034] In some embodiments of this utility model, a zipper pull 500 is also provided. The zipper pull 500 directly engages with the upper and lower surfaces of the chain teeth 400 on both sides. The zipper opening and closing is achieved by controlling the engagement and disengagement of the chain teeth 400 on both sides. The zipper pull 500 includes an upper cover plate 510 and a lower cover plate 520. A connecting post is provided between the upper cover plate 510 and the lower cover plate 520. The upper cover plate 510 is located above the chain teeth 400, and the lower cover plate 520 is located below the chain teeth 400. When the zipper pull 500 slides to drive the chain teeth 400 to engage, it provides vertical limiting guidance for the alignment and fit of the chain teeth 400 on both sides, ensuring that adjacent chain teeth 400 are accurately aligned and avoiding misalignment, jamming, or other situations during engagement. When the zipper pull 500 slides to drive the chain teeth 400 to disengage, the connecting post between the upper cover plate 510 and the lower cover plate 520 opens the engaged chain teeth 400, thereby achieving the separation of the chain teeth 400 on both sides.

[0035] In some embodiments of this utility model, the top surface of the head of the chain tooth 400 protrudes beyond the top surface of the tail of the chain tooth 400, and the bottom surface of the head of the chain tooth 400 protrudes beyond the bottom surface of the tail of the chain tooth 400. Furthermore, both the upper cover plate 510 and the lower cover plate 520 are designed in a C-shape to fit the structural form of the chain tooth 400, allowing the upper cover plate 510 and the lower cover plate 520 to better conform to the contour of the tail of the chain tooth 400. This provides a certain limiting effect on the zipper pull 500, thereby providing stable guidance for the sliding of the zipper pull 500. This ensures that the zipper pull 500 and the tail of the chain tooth 400 slide stably and smoothly, improving the smoothness of the zipper pull 500's sliding and optimizing the overall user experience of the zipper.

[0036] In some specific embodiments, the top surface of the chain tooth 400 is provided with an upper sidewall 420. The upper sidewall 420 is used to smoothly connect the top surface of the head of the chain tooth 400 and the top surface of the tail of the chain tooth 400. By adapting the upper sidewall 420 provided on the top surface of the chain tooth 400 to the height difference formed between the top surface of the head of the chain tooth 400 and the top surface of the tail of the chain tooth 400, the top surface of the head of the chain tooth 400 is smoothly connected to the top surface of the tail of the chain tooth 400, avoiding the formation of sharp steps on the top surface of the chain tooth 400 due to the height difference, thus improving aesthetics and safety. Similarly, a lower sidewall 430 is provided on the bottom surface of the chain tooth 400. The lower sidewall 430 is used to smoothly connect the bottom surface of the head of the chain tooth 400 and the bottom surface of the tail of the chain tooth 400. By adapting the lower sidewall 430 on the bottom surface of the chain tooth 400 to the height difference formed by the bottom surface of the head of the chain tooth 400 and the bottom surface of the tail of the chain tooth 400, the bottom surface of the head of the chain tooth 400 smoothly connects to the bottom surface of the tail of the chain tooth 400, avoiding the formation of sharp steps on the bottom surface of the chain tooth 400 due to the height difference, further improving aesthetics and safety. At the same time, when the zipper is opened and closed by the slider 500, it can reduce the scraping resistance between the upper cover plate 510 and the upper surface of the chain tooth 400, as well as the scraping resistance between the lower cover plate 520 and the lower surface of the chain tooth 400, making the zipper opening and closing process smoother, and effectively reducing the wear between the slider 500 and the chain tooth 400, extending the service life of the zipper.

[0037] In some specific embodiments, the bottom surfaces of both sides of the upper cover plate 510 are slidably connected to the top surfaces of the tail of the chain teeth 400, and the top surfaces of both sides of the lower cover plate 520 are slidably connected to the bottom surfaces of the tail of the chain teeth 400. When the zipper head 500 drives the zipper to open and close, it always moves along the arrangement direction of the chain teeth 400. The upper cover plate 510 and the lower cover plate 520 directly slide with the chain teeth 400, and the fabric 300 does not contact the zipper head 500. This effectively avoids the wear and breakage of the fabric 300 during long-term use of the zipper, further improving the service life of the zipper and optimizing the user experience.

[0038] In some embodiments of this utility model, the chain teeth 400 can be made of metal to ensure the structural strength and durability of the chain teeth 400 themselves. Since the metal chain teeth 400 retain strong structural strength even after deformation, the tail end of the chain teeth 400 is clamped and fixed to the fabric 300 through the interlocking groove 410. That is, the chain teeth 400 and the fabric 300 are fixed by interlocking and riveting. Compared to traditional zippers that rely on stitching, this completely replaces the reliance on stitching, thus avoiding the problem of traditional zippers experiencing stitch wear and breakage due to long-term use, and preventing the entire zipper from detaching from the fabric 300, improving the stability of the connection between the zipper and the fabric 300. At the same time, since the tail end of the chain teeth 400 is fixed by interlocking and riveting with the fabric 300, when individual chain teeth 400 detach, it is not necessary to replace the entire zipper; only the corresponding chain teeth 400 need to be replaced. This significantly reduces the repair costs after zipper damage and the maintenance costs of clothing, further extending the overall service life of the zipper.

[0039] In some embodiments of this invention, the second strap 200 is sewn onto the fabric 300 and fixed within the chain teeth 400, thus preventing it from contacting the zipper pull 500 and avoiding wear and tear during long-term use. Furthermore, by sewing the second strap 200 onto the fabric 300, the tensile force borne by the second strap 200 can be evenly distributed across the fabric 300, preventing localized stress concentration that could lead to loosening of the connection between the second strap 200 and the fabric, and improving the overall stability of the connection between the chain teeth 400 and the fabric 300.

[0040] In some embodiments of this utility model, the second tape body 200 and the fabric 300 are woven together as a single unit. That is, during the zipper production process, the second tape body 200 and the fabric 300 are woven synchronously, and the fibers intertwine and wrap around each other to form an integral structure without splicing gaps. This can further improve the connection strength between the second tape body 200 and the fabric 300, thereby enhancing the firmness between the zipper and the fabric 300. Moreover, it can make the transition between the second tape body 200 and the fabric 300 smoother, making the overall appearance between the zipper and the fabric 300 more harmonious and increasing the aesthetics of the garment.

[0041] In summary, by using the first belt body 100, the second belt body 200, and the fabric 300 to securely engage with the chain teeth 400, the traditional method of zippers relying solely on stitching for fixation is replaced. This effectively avoids the problem of zippers falling off the fabric 300 due to wear and breakage of stitching during long-term use, thus improving the stability and reliability of zippers during use and optimizing the user experience.

[0042] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A zipper, characterized in that, include: Two first belts (100) are arranged side by side, and a second belt (200) is arranged on the opposite side of the two first belts (100). The second belt (200) is connected to the fabric (300). A plurality of chain teeth (400) are arranged at intervals along the length direction of the first belt (100). A through groove (410) is provided through the width direction of the chain teeth (400). The through groove (410) extends along the length direction of the chain teeth (400) to the tail end face of the chain teeth (400). The through groove (410) includes a first belt engagement area (411) for passing through the first belt (100), a second belt engagement area (412) for passing through the second belt (200), and a fabric clamping area (416).

2. A zipper according to claim 1, characterized in that, The first belt engagement area (411) and the second belt engagement area (412) are arranged side by side with intervals, and the second belt engagement area (412) is directly connected to the fabric clamping area (416).

3. A zipper according to claim 1, characterized in that, The upper part of the fabric clamping area is provided with a plurality of first fixing protrusions (413), and the lower part of the fabric clamping area is provided with a plurality of second fixing protrusions (414). The first fixing protrusions (413) and the second fixing protrusions (414) are staggered and can interlock with each other.

4. A zipper according to claim 3, characterized in that, The head of the chain tooth (400) has an engagement protrusion (440) on one side along the width direction of the chain tooth (400), and the head of the chain tooth (400) has an engagement groove (450) that matches the engagement protrusion (440) on the other side along the width direction of the chain tooth (400).

5. A zipper according to any one of claims 1-4, characterized in that, The cross-sections of the first belt (100) and the second belt (200) are circular or near-circular.

6. A zipper according to any one of claims 1-4, characterized in that, The top surface of the head of the chain tooth (400) protrudes beyond the top surface of the tail of the chain tooth (400), and the bottom surface of the head of the chain tooth (400) protrudes beyond the bottom surface of the tail of the chain tooth (400).

7. A zipper according to claim 6, characterized in that, The top surface of the chain tooth (400) is provided with an upper sidewall (420), which is used to smoothly connect the top surface of the head of the chain tooth (400) and the top surface of the tail of the chain tooth (400). The bottom surface of the chain tooth (400) is provided with a lower sidewall (430), which is used to smoothly connect the bottom surface of the head of the chain tooth (400) and the bottom surface of the tail of the chain tooth (400).

8. A zipper according to any one of claims 1-3, characterized in that, The chain teeth (400) are made of metal and are clamped and fixed to the fabric (300) by the interlocking groove (410).

9. A zipper according to any one of claims 1-3, characterized in that, The second belt (200) is sewn onto the fabric (300).

10. A zipper according to any one of claims 1-3, characterized in that, The second belt (200) is integrally woven with the fabric (300).

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