Sewing-free zipper assembly
By designing seamless zipper assembly, the complex installation problem of existing zipper boxes is solved, efficient assembly and reduced production costs are achieved, and it is suitable for rapid replacement and adjustment of different suitcase sizes and styles.
Patent Information
- Application Number
- CN202422228092.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing zipper boxes are complex to be installed during production, requiring manual sewing, and automated production cannot be achieved.
A seamless zipper assembly is designed, including a fastener part, a chain cloth part and a fixed chain tooth part. By installing a fixed fastener on the edges of the upper and lower parts of the suitcase, the fixed chain tooth part is fitted in the installation groove to achieve no seam connection.
It improves assembly efficiency, reduces production costs, and facilitates rapid replacement and adjustment according to different suitcase sizes and styles, improving product versatility and flexibility.
Smart Images

Figure CN223247764U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of zipper structures, in particular to a seamless zipper assembly. Background Art
[0002] A suitcase, also known as a travel case or trolley case, is a type of luggage used to carry items when traveling. It's typically used to store clothing, personal care products, and souvenirs needed for travel. Currently, luggage on the market can be broadly categorized into two types: zippered luggage (or simply zippered luggage) and frame-type luggage (or frame-type luggage). Zippered luggage, which is lighter and smaller, is popular among travelers. A zipper connects the two halves of the luggage into a single unit. However, existing zippered luggage is difficult to manufacture, and the zipper requires manual sewing, which increases labor costs and prevents automated production.
[0003] There is a need for a luggage case zipper assembly that is easier to install, easier to assemble, and does not require sewing, and can solve the above-mentioned problems. Utility Model Content
[0004] The utility model provides a seamless zipper assembly, which solves the problem that the existing zipper structure is relatively complicated to install and requires sewing by technically transforming the existing zipper structure.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A seamless zipper assembly comprises a chain tooth portion, a chain cloth portion and a fixed chain tooth portion, wherein the chain cloth portion consists of a left chain cloth and a right chain cloth, and the left chain cloth and the right chain cloth are respectively connected and arranged on both sides of the chain tooth portion, and the left chain cloth and the right chain cloth are connected through the chain tooth portion, and the outer end of the chain cloth portion is woven with a fixed chain tooth portion, and fixed fasteners for installing the zipper assembly are installed at the edge positions of the upper and lower parts of the suitcase body, and the fixed fasteners are provided with an installation groove, and the fixed chain tooth portion is inserted into the installation groove.
[0007] Preferably, the fixed chain tooth part includes upper chain teeth and lower chain teeth, the upper chain teeth are arranged on the upper surface of the chain cloth part, and the lower chain teeth are arranged on the lower surface of the chain cloth part, and the upper chain teeth and the lower chain teeth are fixed to the chain cloth part by stitches.
[0008] Preferably, the link tooth portion includes a double link tooth structure, which consists of an upper link tooth and a lower link tooth. The upper link tooth is arranged on the upper surface of the chain cloth portion, and the lower link tooth is arranged on the lower surface of the chain cloth portion.
[0009] Preferably, the chain tooth part includes a double chain tooth structure, which is composed of an upper chain tooth, a lower chain tooth and a spacer cloth layer. The upper chain tooth and the lower chain tooth are both arranged on the upper surface of the chain cloth part, and a spacer cloth layer is arranged between the upper chain tooth and the lower chain tooth.
[0010] Preferably, the chain tooth portion includes a single chain tooth structure, and the single chain tooth structure is arranged above the chain cloth portion.
[0011] The beneficial effects of the present invention are:
[0012] The utility model provides a seamless zipper structure for a suitcase, wherein fixed tooth parts are woven at the outer ends of the chain cloth on the left and right sides of the zipper tooth part, and fixed fasteners are installed at the opening edges of the upper and lower parts of the suitcase body, and the fixed fasteners are provided with mounting grooves, and the fixed tooth parts are engaged and penetrated into the cavity of the mounting slots, so that the fixed tooth parts cannot be separated from the mounting slots. The upper and lower parts of the suitcase body are connected by the zipper structure, and there is no need to sew the zipper braid on the suitcase body, thereby improving assembly efficiency, saving labor and time, and reducing production costs.
[0013] In addition, the present application designs the zipper assembly into a modular structure, which is convenient for quick replacement and adjustment according to different suitcase sizes and styles, thereby improving the versatility and flexibility of the product and being compatible with a variety of installation environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the utility model installed on a luggage box body;
[0016] Figure 3 This is a schematic structural diagram of Example 2 of the present utility model;
[0017] Figure 4 This is a schematic structural diagram of Example 3 of the present utility model;
[0018] Explanation of the accompanying numbers: chain tooth part 1, upper chain tooth 11, lower chain tooth 12, spacer cloth layer 13, chain cloth part 2, left chain cloth 21, right chain cloth 22, fixed chain tooth part 3, upper side chain tooth 31, lower side chain tooth 32, stitching 33, fixed fastener 4, installation groove 41, box body 5. DETAILED DESCRIPTION
[0019] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.
[0020] See also Figure 1-4As shown, the utility model provides a seamless zipper assembly, including a chain tooth part 1, a chain cloth part 2 and a fixed chain tooth part 3, the chain cloth part 2 is composed of a left chain cloth 21 and a right chain cloth 22, the left chain cloth 21 and the right chain cloth 22 are respectively connected and arranged on both sides of the chain tooth part 1, the left chain cloth 21 and the right chain cloth 22 are connected through the chain tooth part 1, and the outer end of the chain cloth part 2 is woven with a fixed chain tooth part 3, and the edge positions of the upper and lower parts of the box body 5 of the suitcase are installed with fixed fasteners 4 for installing the zipper assembly, the fixed fastener 4 is provided with an installation groove 41, and the fixed chain tooth part 3 is passed through the installation groove 41.
[0021] Furthermore, to achieve a more secure installation, the fixed sprocket portion 3 includes upper sprockets 31 and lower sprockets 32. The upper sprockets 31 are positioned on the upper surface of the sprocket fabric portion 2, while the lower sprockets 32 are positioned on the lower surface of the sprocket fabric portion 2. The upper and lower sprockets 31 and 32 are secured to the sprocket fabric portion 2 via stitches 33. The sprockets are made of a high-strength, corrosion-resistant alloy material to improve the wear resistance and service life of the zipper.
[0022] In Example 1, the link tooth portion 1 includes a double link tooth structure, which is composed of an upper link tooth 11 and a lower link tooth 12. The upper link tooth 11 is arranged on the upper surface of the chain cloth portion 2, and the lower link tooth 12 is arranged on the lower surface of the chain cloth portion 2.
[0023] In another embodiment 2, the link tooth part 1 includes a double link tooth structure, which is composed of an upper link tooth 11, a lower link tooth 12 and a spacer cloth layer 13. The upper link tooth 11 and the lower link tooth 12 are both arranged on the upper surface of the link cloth part 2, and a spacer cloth layer 13 is arranged between the upper link tooth 11 and the lower link tooth 12.
[0024] Furthermore, in another embodiment 3, the fastener element portion 1 includes a single fastener tooth structure, and the single fastener tooth structure is arranged above the fastener fabric portion 2 .
[0025] The present embodiment provides a seamless zipper structure for a suitcase, wherein fixed tooth portions are woven at the outer ends of the chain cloth on the left and right sides of the zipper tooth portion, and fixed fasteners are installed at the opening edges of the upper and lower parts of the suitcase body, and the fixed fasteners are provided with mounting grooves, and the fixed tooth portions are engaged and penetrated into the cavity of the mounting slots, so that the fixed tooth portions cannot be detached from the mounting grooves. The upper and lower parts of the suitcase body are connected by the zipper structure, and there is no need to sew zipper braids on the body, thereby improving assembly efficiency, saving labor and time, and reducing production costs.
[0026] In addition, the present application designs the zipper assembly into a modular structure, which is convenient for quick replacement and adjustment according to different suitcase sizes and styles, thereby improving the versatility and flexibility of the product and being compatible with a variety of installation environments.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
[0028] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0029] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
Claims
1. A seamless zipper assembly, characterized in that: It includes a chain tooth part, a chain cloth part and a fixed chain tooth part, the chain cloth part is composed of a left chain cloth and a right chain cloth, the left chain cloth and the right chain cloth are respectively connected and arranged on both sides of the chain tooth part, the left chain cloth and the right chain cloth are connected through the chain tooth part, and the outer end of the chain cloth part is woven with a fixed chain tooth part, and the upper and lower edges of the suitcase are equipped with fixed fasteners for installing the zipper assembly, the fixed fasteners are provided with an installation groove, and the fixed chain tooth part is passed through the installation groove.
2. The seamless zipper assembly according to claim 1, characterized in that: The fixed sprocket part includes upper sprockets and lower sprockets, the upper sprockets are arranged on the upper surface of the chain cloth part, and the lower sprockets are arranged on the lower surface of the chain cloth part. The upper sprockets and the lower sprockets are fixed to the chain cloth part by stitching.
3. The seamless zipper assembly according to claim 1, characterized in that: The chain tooth part includes a double chain tooth structure, which is composed of upper chain teeth and lower chain teeth. The upper chain teeth are arranged on the upper surface of the chain cloth part, and the lower chain teeth are arranged on the lower surface of the chain cloth part.
4. The seamless zipper assembly according to claim 1, characterized in that: The chain tooth part includes a double chain tooth structure, which is composed of an upper chain tooth, a lower chain tooth and a spacer cloth layer. The upper chain tooth and the lower chain tooth are both arranged on the upper surface of the chain cloth part, and a spacer cloth layer is arranged between the upper chain tooth and the lower chain tooth.
5. The seamless zipper assembly according to claim 1, characterized in that: The fastener element portion includes a single fastener tooth structure, and the single fastener tooth structure is arranged above the fastener cloth portion.