Multi-chain telescopic composite zipper

Abstract

The utility model provides a multi-chain telescopic composite zipper which comprises a first zipper body and a second zipper body, close row teeth of the first zipper body and the second zipper body are connected through a second cloth strip, the other side of the first zipper body is connected with a first cloth strip, and the other side of the second zipper body is connected with a third cloth strip. A fourth cloth strip is arranged on the side, away from the wall face of the first zipper, of the second cloth strip, two first sewing parts are sewn between one side of the fourth cloth strip and the second cloth strip, and a containing cavity is formed between the fourth cloth strip and the second cloth strip. A second sewing part is sewn on the other side of the fourth cloth strip and the first cloth strip or the third cloth strip through a sewing line; the fourth cloth strip is folded between the second sewing part and the accommodating cavity; reinforcing ribs are arranged in the accommodating cavity; a plurality of zippers are arranged and sewn in advance according to the requirements of bags and suitcases, so that the zippers can be quickly aligned and sewn in the subsequent manufacturing process of the bags and suitcases, and the production efficiency is improved; and reinforcing parts are locally arranged, so that the overall structural strength and the connecting strength are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of zippers, and more specifically to a multi-chain telescopic composite zipper. Background Art

[0002] Zippers are common structures widely used in clothing, luggage and other fields, and serve the purpose of opening and closing. In the application of luggage, such as zippers on the box body, zippers on the interlayer, zippers on the expansion part, etc., a piece of luggage needs to be equipped with multiple zippers to achieve the corresponding functional effects of different parts. However, most of the current zippers are separate and single structures. Multiple scattered zippers will inevitably increase the difficulty and time of sewing when making luggage, affecting production efficiency, and therefore need to be improved. Utility Model Content

[0003] In order to overcome the defects of the existing technology, the technical problem to be solved by the present invention is to propose a multi-chain telescopic composite zipper, in which multiple zippers are arranged and sewn in advance according to the needs of luggage, so that they can be quickly aligned and sewn in the subsequent luggage production, thereby improving production efficiency; and reinforced components are locally set to enhance the overall structural strength and connection strength.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a multi-chain telescopic composite zipper, comprising a first zipper and a second zipper, wherein the rows of teeth adjacent to the first zipper are connected by a second cloth strip, the row of teeth of the first zipper on a side away from the second cloth strip is connected to the first cloth strip, and the row of teeth of the second zipper on a side away from the second cloth strip is connected to the third cloth strip; a fourth cloth strip is provided on a wall side of the second cloth strip away from the first zipper, two first stitching portions are sewn between one side of the fourth cloth strip and the second cloth strip by stitching lines, and a receiving cavity is formed between the fourth cloth strip and the second cloth strip between the two first stitching portions; a second stitching portion is sewn between the other side of the fourth cloth strip and the first cloth strip or the third cloth strip by stitching lines; the fourth cloth strip is folded and stored between the second stitching portion and the receiving cavity; reinforcing ribs are provided in the receiving cavity, and the reinforcing ribs extend along the length direction of the receiving cavity.

[0006] In a preferred technical solution of the present invention, a through hole is provided in the middle of the reinforcing rib and passes through both ends.

[0007] In a preferred technical solution of the present invention, a support strip is provided through the perforation.

[0008] In a preferred technical solution of the present invention, an opening extending along the length direction is provided on the cavity wall of the accommodating cavity, and a third zipper is provided at the opening.

[0009] In a preferred technical solution of the present invention, the opening is provided on the second cloth strip, and the third zipper is provided on the wall surface of the second cloth strip away from the accommodating cavity.

[0010] In a preferred technical solution of the present invention, the opening is provided on the second cloth strip, the third zipper is provided on the wall surface of the second cloth strip close to the accommodating cavity, and the zipper head of the third zipper is located on the side of the second cloth strip away from the accommodating cavity.

[0011] In a preferred technical solution of the present invention, the opening is provided at the fourth cloth strip.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a multi-chain telescopic composite zipper, comprising a first zipper and a second zipper. The adjacent rows of teeth of the first zipper and the second zipper are connected by a second fabric strip. The first fabric strip is connected to the row of teeth on the side of the first zipper away from the second fabric strip, and the third fabric strip is connected to the row of teeth on the side of the second zipper away from the second fabric strip. A fourth fabric strip is provided on the wall side of the second fabric strip away from the first zipper. One side of the fourth fabric strip is connected to the second fabric strip, and the other side is connected to the first fabric strip or the third fabric strip. The multiple zippers are combined, and the fourth fabric strip is used as an expansion zipper as a whole, meeting the expansion function required for luggage.

[0014] Among them, two first stitching parts are sewn between one side of the fourth fabric strip and the second fabric strip by stitching lines to further strengthen the connection strength. A receiving cavity is also formed between the fourth fabric strip and the second fabric strip. Reinforcing ribs are provided in the receiving cavity to provide a certain degree of support, further strengthening the structural strength and support strength of this part.

[0015] The overall structural design allows for the pre-arrangement and sewing of multiple zippers according to luggage requirements, forming a composite zipper that can be quickly aligned and sewn during subsequent luggage production, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of a multi-chain telescopic composite zipper provided in specific embodiment 1 of the present utility model;

[0017] Figure 2 This is a cross-sectional view of a multi-chain telescopic composite zipper provided in specific embodiment 1 of the present utility model;

[0018] Figure 3 This is a top view of a multi-chain telescopic composite zipper provided in specific embodiment 2 of the present utility model;

[0019] Figure 4This is a cross-sectional view of a multi-chain telescopic composite zipper provided in specific embodiment 2 of the present utility model;

[0020] Figure 5 This is a top view of a multi-chain telescopic composite zipper provided in specific embodiment 3 of the present utility model;

[0021] Figure 6 This is a cross-sectional view of a multi-chain telescopic composite zipper provided in specific embodiment 3 of the present utility model;

[0022] In the picture:

[0023] 110. First zipper; 120. Second zipper; 130. Third zipper; 210. First fabric strip; 220. Second fabric strip; 230. Third fabric strip; 240. Fourth fabric strip; 310. First stitching portion; 320. Second stitching portion; 400. Accommodating cavity; 410. Opening; 500. Reinforcing rib. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] like Figure 1 、 Figure 2 As shown, a specific embodiment of the present invention discloses a multi-chain telescopic composite zipper, including a first zipper 110 and a second zipper 120. The adjacent rows of teeth of the first zipper 110 and the second zipper 120 are connected by a second fabric strip 220. The first fabric strip 210 is connected to the row of teeth on the side of the first zipper 110 away from the second fabric strip 120, and the third fabric strip 230 is connected to the row of teeth on the side of the second zipper 120 away from the second fabric strip 220.

[0026] A fourth fabric strip 240 is provided on a side of the wall of the second fabric strip 220 away from the first zipper 110. Two first stitching portions 310 are sewn between one side of the fourth fabric strip 240 and the second fabric strip 220 by stitching lines. The fourth fabric strip 240 and the second fabric strip 220 form a receiving cavity 400 between the two first stitching portions 310.

[0027] The other side of the fourth fabric strip 240 is sewn with the first fabric strip 210 or the third fabric strip 230 to form a second sewing portion 320 through a sewing thread; the fourth fabric strip is folded and stored between the second sewing portion and the accommodating cavity;

[0028] A reinforcing rib 500 is provided in the accommodating cavity 400 , and the reinforcing rib extends along the length direction of the accommodating cavity.

[0029] The multi-chain telescopic composite zipper combines multiple zippers and uses the fourth strip of fabric as the expansion portion, so that the entire zipper can be used as an expansion zipper to meet the expansion function required for luggage.

[0030] Among them, two first stitching parts are sewn between the fourth cloth strip and the second cloth strip to further strengthen the connection strength, and a accommodating cavity is formed between the fourth cloth strip and the second cloth strip. Reinforcing ribs are provided in the accommodating cavity to provide a certain degree of support, thereby further strengthening the structural strength and support strength of this part; moreover, the reinforcing ribs are located inside the accommodating cavity and will not be exposed to the outside, so as to facilitate the overall shape design of the luggage; the overall structural design can arrange and sew multiple zippers in advance according to the needs of the luggage, as a whole composite zipper, so as to facilitate rapid alignment and sewing in the subsequent luggage production, thereby improving production efficiency.

[0031] Furthermore, the reinforcing ribs include but are not limited to one of rubber strips, plastic strips, fiberglass strips, metal strips and the like, which can provide a certain degree of support and enhance the overall expansion effect;

[0032] Furthermore, the middle part of the reinforcement rib is provided with a through-hole running through both ends, which can make its interior hollow and enhance its elastic deformation range to a certain extent; on the other hand, it can be used as a filling space to fill and insert corresponding structural components; for example, a support bar can be passed through the through-hole; the material of the support bar is different from that of the reinforcement rib, including but not limited to one of the materials such as iron bar, copper bar, aluminum bar, etc.; if the reinforcement rib is a rubber bar, the support bar is an iron wire bar; if the reinforcement rib is a plastic bar, the copper bar is passed through the through-hole; the corresponding combination is made to meet the requirements of structural strength and elastic deformation at the same time; it should be noted that when the reinforcement rib is made of metal bar material, the through-hole is no longer filled with a support bar.

[0033] Furthermore, an opening 410 extending along the length direction is provided at the cavity wall of the accommodating cavity 400, and a third zipper 130 is provided at the opening 410. The opening and the third zipper can be used as locations for taking and placing the reinforcing ribs; this means that the reinforcing ribs can be used as structural components to be inserted later, so that the structural components other than the reinforcing ribs can be sewn to the required positions of the luggage first, and then the reinforcing ribs can be placed in the accommodating cavity, which is convenient for actual processing and production.

[0034] For different luggage requirements, the opening position of the third zipper also has corresponding requirements:

[0035] like Figure 1 、 Figure 2 As shown, in Example 1, the opening 410 is provided on the second fabric strip 220, and the third zipper 130 is provided on the wall surface of the second fabric strip 220 away from the accommodating cavity 400; the third zipper is directly exposed and intuitively displayed, which is convenient for use and processing; on the other hand, it can be applied to some bags that use this zipper for decorative effect;

[0036] like Figure 3 、 Figure 4As shown, in Example 2, the opening 410 is provided on the second fabric strip 220, and the third zipper 130 is provided on the wall surface of the second fabric strip 220 on the side close to the accommodating cavity 400. The zipper pull of the third zipper is located on the side of the second fabric strip away from the accommodating cavity. When the third zipper is closed, the second fabric strip covers the teeth of the third zipper, reducing the exposed area of ​​the third zipper and maintaining the external appearance.

[0037] like Figure 5 、 Figure 6 As shown, in Example 3, the opening 410 is provided at the fourth cloth strip 240, which means that the other side can be maintained as a complete wall without corresponding gap marks, further enhancing the external aesthetic performance; on the other hand, it can also prevent the zipper from opening by mistake or even the loss of the reinforcing ribs.

[0038] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application are also within the scope of protection of the present invention.

Claims

1. A multi-chain telescopic composite zipper, characterized in that: The first zipper comprises a first zipper and a second zipper, wherein adjacent rows of teeth of the first zipper and the second zipper are connected by a second fabric strip, the row of teeth of the first zipper on the side away from the second fabric strip is connected to the first fabric strip, and the row of teeth of the second zipper on the side away from the second fabric strip is connected to the third fabric strip; A fourth fabric strip is provided on a side of the wall of the second fabric strip away from the first zipper, two first stitching portions are sewn between one side of the fourth fabric strip and the second fabric strip by stitching lines, and a receiving cavity is formed between the fourth fabric strip and the second fabric strip; The other side of the fourth cloth strip is sewn with the first cloth strip or the third cloth strip to form a second sewing portion through a sewing thread; the fourth cloth strip is folded and stored between the second sewing portion and the accommodating cavity; A reinforcing rib is provided in the accommodating cavity, and the reinforcing rib extends along the length direction of the accommodating cavity.

2. The multi-chain telescopic composite zipper according to claim 1, characterized in that: The middle part of the reinforcing rib is provided with a through hole running through both ends.

3. The multi-chain telescopic composite zipper according to claim 2, characterized in that: A supporting strip is provided at the perforation.

4. The multi-chain telescopic composite zipper according to claim 1, characterized in that: An opening extending along the length direction is provided on the cavity wall of the accommodating cavity, and a third zipper is provided at the opening.

5. The multi-chain telescopic composite zipper according to claim 4, characterized in that: The opening is arranged on the second cloth strip, and the third zipper is arranged on the wall surface of the second cloth strip away from the accommodating cavity.

6. The multi-chain telescopic composite zipper according to claim 4, characterized in that: The opening is arranged on the second cloth strip, the third zipper is arranged on the wall surface of the second cloth strip close to the accommodating cavity, and the zipper head of the third zipper is located on the side of the second cloth strip away from the accommodating cavity.

7. The multi-chain telescopic composite zipper according to claim 4, characterized in that: The opening is located at the fourth strip of cloth.

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