A double-layer linkage adjustable zipper and its garment

By using a double-layer linkage adjustment zipper system, which utilizes a snap-on connection and friction locking structure, the problem of traditional zippers being unable to dynamically adjust is solved, enabling flexible adjustment and improved comfort of clothing in different environments.

CN224936659UActive Publication Date: 2026-11-06JIANGSU HONGDOU INDUSTRIAL CO LTD
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Patent Information

Application Number
CN202522264368.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-11-06
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

Traditional zipper structures cannot achieve coordinated adjustment between the inner and outer layers, making it difficult for clothing to dynamically adjust its ventilation, warmth, and windproof properties in different environments, and they are also inconvenient to operate.

Method used

It adopts a double-layer linkage adjustment zipper system, including an outer zipper, an inner zipper, a connecting structure, and a locking structure. The inner and outer zippers can be adjusted synchronously or independently through a snap-fit ​​connection, and accidental slippage is prevented through friction locking.

Benefits of technology

It enables flexible adjustment of clothing in different environments, improves wearing comfort and functionality, and optimizes breathability and looseness adjustment while maintaining windproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a double-layer linkage adjustable zipper and its garment, including an outer zipper, an inner zipper, a connecting structure, and a locking structure. The connecting structure is a snap-fit ​​connection, including a snap fastener and a snap fastener connecting two zipper heads. The inner and outer zippers are linked for adjustment by sliding the snap fasteners together. The locking structure is a friction lock used to lock the zipper position. This system allows for synchronous or independent adjustment of the inner and outer zippers, offering flexible and convenient operation. It can adjust the ventilation, warmth, and windproof properties of the garment according to different environmental needs. This utility model also discloses a garment using this system, the main body of which is made of windproof fabric, offering comfortable wear and strong functionality.
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Description

Technical Field

[0001] This utility model relates to the field of clothing zipper structure technology, specifically a double-layer linkage adjustable zipper and its apparel. Background Technology

[0002] Currently, many garments employ multi-layered designs to enhance windproofness, warmth, or breathability. However, traditional zipper structures are typically single-layered, failing to adequately meet the dynamic adjustment needs for ventilation, warmth, and windproofing in different environments, and also lacking the ability to adjust the garment's fit. For instance, in outdoor activities, it's sometimes necessary to increase breathability while maintaining basic windproofness, but traditional zippers require repeated opening and closing, which is inconvenient and may affect the overall aesthetics of the garment.

[0003] Therefore, there is an urgent need for a more convenient and flexible zipper adjustment method to improve the comfort and functionality of clothing. Utility Model Content

[0004] Purpose of the utility model: To solve the technical problems in the prior art of inconvenient adjustment of clothing zippers, inability to achieve linkage and independent adjustment of inner and outer zippers, and difficulty in meeting the dynamic adjustment needs of clothing ventilation, warmth and windproofness in different environments, and to provide a simple, flexible, and highly functional double-layer linkage adjustment zipper system and its application in clothing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A double-layer linkage adjustable zipper system, characterized in that it comprises: Outer zipper: Located on the outside of the garment, it uses a conventional zipper structure and is used for garment closure and wind protection.

[0006] Inner zipper: Located on the inside of the garment, offset from the outer zipper, and uses a conventional zipper structure.

[0007] Connection structure: Used to connect the outer zipper and the inner zipper pull, and to realize the linkage adjustment between the two. The connection structure is a snap-fit ​​connection, including a snap fixed inside the outer zipper and a snap connected to the inner zipper pull. The inner and outer zippers can be adjusted synchronously or independently by tightening or untightening the two snaps.

[0008] Locking structure: Used to lock the relative position of the inner and outer zippers to prevent accidental slippage. The locking structure is a friction lock, which is achieved by increasing the friction between the buckles. The magnitude of the friction is able to withstand a pulling force of at least 5N.

[0009] Furthermore, the outer zipper and the inner zipper are misaligned by 2cm.

[0010] Furthermore, the buckle is made of wear-resistant plastic or metal.

[0011] Furthermore, the buckle is made of POM (polyoxymethylene) material, which has good wear resistance and self-lubricating properties.

[0012] Furthermore, the friction locking is achieved by increasing the contact area between the latches.

[0013] Furthermore, the friction lock also includes an adjustable pressure mechanism for adjusting the friction force between the latches.

[0014] A garment, characterized in that it includes the double-layer linkage adjustment zipper system described in any one of the above claims, wherein the main body of the garment is made of windproof fabric and is cut and sewn according to the structure of the double-layer zipper.

[0015] Furthermore, the breathability index of the windproof fabric is 5000-10000g / m² / 24h.

[0016] Compared with the prior art, the beneficial effects of this utility model are: Flexible and convenient adjustment: The snap-on connection structure allows for simultaneous or independent adjustment of the inner and outer zippers. Users can easily adjust the ventilation, warmth, and windproofing of the garment according to their actual needs, thereby improving wearing comfort.

[0017] Adjustable garment looseness: By setting up staggered double zippers, you can freely choose the connection relationship between the inner and outer zippers to adjust the looseness of the garment.

[0018] Novel and practical structure: The system ingeniously integrates two layers of zippers together through a connecting structure, resulting in a compact structure that does not affect the overall aesthetics of the garment.

[0019] Good windproof and warmth retention: The outer zipper provides basic closure and windproof function, while the adjustable inner zipper can further optimize breathability to meet the needs of different seasons and environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the buckle of this utility model.

[0022] Figure 3 This is a schematic diagram of the buckle installation of this utility model.

[0023] Figure 4 This is an enlarged view of the buckle of this utility model.

[0024] Figure 5This is a cross-sectional view of the buckle of this utility model.

[0025] In the picture: 1. Outer zipper; 2. Inner zipper; 3. Buckle; 4. Locking structure; 5. Garment body; 6. Zipper pull. Detailed Implementation

[0026] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0027] Reference Figure 1-5 This utility model provides a double-layer linkage adjustment zipper system, including an outer zipper 1, an inner zipper 2, a connecting structure, and a locking structure 4.

[0028] Both the outer zipper 1 and the inner zipper 2 use conventional zipper structures, such as zipper teeth, zipper pulls, and other components. The outer zipper 1 is located on the outside of the garment, mainly for overall closure and providing basic wind protection. The inner zipper 2 is located on the inside of the garment and is staggered from the outer zipper 1.

[0029] The connecting structure is a key part of this invention, serving to connect the zipper pulls 6 of the outer zipper 1 and the inner zipper 2, and to enable their coordinated adjustment. In this embodiment, the connecting structure uses a snap-fit ​​connection. Specifically, a snap-fit ​​3 is provided between the outer zipper 1 and the inner zipper 2 on the inside of the garment. The snap-fit ​​3 can be fixed between the inner edge of the outer zipper 1 and the outer edge of the inner zipper 2. The effective sliding stroke of the snap-fit ​​3 is 5-30mm, used to limit the range of movement of the snap-fit ​​3.

[0030] There are two buckles 3: one connects to the zipper pull 6 of the outer zipper 11, and the other connects to the zipper pull 6 of the inner zipper 2. When the user operates the buckles 3, both buckles 3 engage, causing the two zipper pulls 6 to move synchronously or independently, thereby adjusting the inner and outer zippers 1. For example, when the buckles 3 are engaged, the inner and outer zippers 1 can be opened or closed simultaneously; when the buckles 3 are disengaged, the inner zipper 2 and the outer zipper 1 can be used independently, or the inner zipper 2 can be connected to the outer zipper 1 to adjust the looseness of the garment. By adjusting the relative positions of the buckles 3, the inner and outer zippers 1 can be adjusted in a coordinated manner. For example, when only partial ventilation is needed, only the inner zipper 2 can be opened while the outer zipper 1 remains closed, or the position of the buckles 3 can be adjusted to achieve a semi-coordinated state between the inner and outer zippers 1.

[0031] The locking structure 4 is used to lock the relative position of the inner and outer zippers 1 to prevent accidental slippage. In this embodiment, the locking structure 4 adopts friction locking. Locking is achieved by increasing friction between the buckles 3. For example, a special texture can be provided on the buckles 3 or the contact surface of the buckles 3, or the contact area can be increased to increase friction. The magnitude of the friction is sufficient to withstand a pulling force of at least 5N, ensuring that the zipper will not change its state due to shaking or slight pulling during normal use.

[0032] Furthermore, to achieve better structure and performance, a certain misalignment can be set between the outer zipper 1 and the inner zipper 2, for example, a misalignment of 2cm. This misalignment provides installation space for the connecting structure and ensures that the two zippers do not interfere with each other.

[0033] In terms of material selection, the buckle 3 can be made of wear-resistant plastic or metal to ensure its durability and smoothness. For example, wear-resistant plastic can be nylon, ABS, etc.; metal can be aluminum alloy, stainless steel, etc.

[0034] The buckle 3 is preferably made of POM (polyoxymethylene) material. POM material has good wear resistance, low coefficient of friction and self-lubricating properties, which can ensure smooth sliding of the buckle 3 on the buckle 3 and extend its service life.

[0035] Friction locking can be achieved by increasing the contact area between the latches 3. For example, the latches 3 can be designed with more complex shapes to increase the contact surface area between them.

[0036] The friction lock may also include an adjustable pressure mechanism for adjusting the amount of friction between the latches 3 and 3. For example, a screw or knob may be provided on the latch 3. By adjusting the pressure of this mechanism, the pressure of the latches 3 on the latches 3 can be changed, thereby adjusting the friction to meet the needs of different users. For example, the pressure can be increased when a more secure lock is needed, and the pressure can be decreased when easier sliding is needed.

[0037] Reference Figure 1 This utility model also provides a garment including the aforementioned double-layer linkage adjustable zipper system. The main body of the garment 5 is made of windproof fabric and is cut and sewn according to the structure of the double-layer zipper. This garment design allows for convenient adjustment of breathability and warmth according to the wearer's needs, while maintaining good windproof performance.

[0038] Windproof fabrics can have specific breathability ratings, such as 5000-10000g / m² / 24h. This rating ensures that the fabric is windproof while also being breathable, preventing a stuffy feeling when wearing it.

[0039] The double-layer linkage adjustment zipper system of this invention can also be applied to other scenarios that require similar functions, such as backpacks, tents, etc.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-layer linkage adjustable zipper, characterized in that, include: The outer zipper, located on the outside of the garment, uses a conventional zipper structure and is used for garment closure and wind protection; The inner zipper is located on the inside of the garment and is offset from the outer zipper. It uses a conventional zipper structure. A connecting structure is used to connect the zipper heads of the outer zipper and the inner zipper, and to realize the linkage adjustment between the two. The connecting structure is a snap-fit ​​connection, including a snap fixed inside the outer zipper and a snap connected to the zipper head of the inner zipper. The synchronous or independent adjustment of the inner and outer zippers can be realized by tightening or untightening the two snaps. A locking structure is used to lock the relative positions of the inner and outer zippers to prevent accidental slippage. The locking structure is a friction lock, which achieves locking by increasing the friction between the buckles. The magnitude of the friction is able to withstand a pulling force of at least 5N.

2. The double-layer linkage adjustable zipper according to claim 1, characterized in that, The outer zipper and the inner zipper are misaligned by 2cm.

3. The double-layer linkage adjustable zipper according to claim 1, characterized in that, The buckle is made of wear-resistant plastic or metal.

4. The double-layer linkage adjustable zipper according to claim 1, characterized in that, The buckle is made of polyoxymethylene material, which has good wear resistance and self-lubricating properties.

5. The double-layer linkage adjustable zipper according to claim 1, characterized in that, The friction locking is achieved by increasing the contact area between the latches.

6. The double-layer linkage adjustable zipper according to claim 1, characterized in that, The friction lock also includes an adjustable pressure mechanism for adjusting the friction force between the latches.

7. A garment, characterized in that, The garment includes the double-layer linkage adjustment zipper as described in any one of claims 1-6, wherein the main body of the garment is made of windproof fabric and is cut and sewn according to the structure of the double-layer zipper.

8. The garment according to claim 7, characterized in that, The breathability index of the windproof fabric is 5000-10000g / m² / 24h.