A zipper

Abstract

The present application relates to the technical field of zipper structure, and particularly relates to a zipper, which comprises: a pair of cloth tapes; a pair of zipper teeth arranged on the pair of cloth tapes respectively; a puller for engaging or separating the pair of zipper teeth; and a stopper arranged on at least one end of the pair of zipper teeth, wherein the stopper is formed by dissolving the end of the pair of zipper teeth after being pushed to be close to each other, and the width of the stopper is smaller than the width of the pair of zipper teeth after being engaged. Since the ends of the pair of zipper teeth can be as close to each other as possible, the gap between the head portions of the ends of the pair of cloth tapes without zipper teeth can be minimized, the gap between the head portions of the ends of the pair of cloth tapes is minimized, and the integrity and appearance of the zipper are not affected by the exposed gap between the head portions of the ends of the pair of cloth tapes during use.

Description

Technical Field

[0001] This invention relates to the field of zipper structure technology, and more particularly to a zipper. Background Technology

[0002] Depending on the usage requirements, zippers for clothing pockets, bag interior pockets, etc., can be used either upright or reversed. When the zipper is used reversed, the zipper teeth are located on the inside of the pocket and cannot be seen when the pocket is not open, resulting in a better appearance and a more seamless look, and is therefore widely used.

[0003] Typically, zippers have stop structures at both ends of the zipper teeth to prevent the zipper pull from sliding out from either end of the teeth. A common method is to melt the ends of the zipper teeth to form the stop structure. For example, patent document CN2508603Y discloses a lower zipper stop in which a monofilament is inserted at the end of the teeth and fused together with the end portion of the zipper teeth to form the lower zipper stop.

[0004] In existing technologies, such as Figure 1 As shown, when the zipper teeth 2 are melted to form a stop structure, the corresponding ends of the two side fabric strips 1 will have a section of strip head 11 without zipper teeth, and there is a large gap H' between the strip head 11 of the two side fabric strips 1. When the zipper is installed on clothing or bags, this gap H' will be exposed to some extent, affecting the appearance and integrity. Summary of the Invention

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a zipper that can minimize the gap between the heads of the two-sided fabric tape.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The present invention provides a zipper, comprising: a pair of fabric strips; a pair of zipper teeth respectively disposed on the pair of fabric strips; a zipper pull for engaging or disengaging the pair of zipper teeth; and further comprising: a stop portion disposed at at least one end of the pair of zipper teeth; the stop portion is formed by dissolving the ends of the pair of zipper teeth after being pushed close to each other, and the width of the stop portion is smaller than the width of the pair of zipper teeth after engagement.

[0008] Preferably, a stop is provided at the upper and / or lower ends of a pair of zipper teeth.

[0009] Preferably, the stop portion located at the upper end of a pair of zipper teeth is the upper stop portion, and the pair of zipper teeth gradually separate from top to bottom in a figure-eight shape at the lower end of the upper stop portion.

[0010] Preferably, the stop portion located at the lower end of a pair of zipper teeth is a lower stop portion, and the pair of zipper teeth at the upper end of the lower stop portion are arranged in an inverted "V" shape that gradually separates from bottom to top.

[0011] Preferably, the stop is dissolved to the last zipper tooth at the end of a pair of zipper teeth.

[0012] Preferably, the melting portion of the stop is T-shaped.

[0013] Preferably, the length of the stop portion is at least the length of three zipper teeth.

[0014] Preferably, the length of the stop is 5-6 zipper teeth.

[0015] Compared with the prior art, the present invention has significant progress:

[0016] The zipper of the present invention, by pressing the ends of a pair of zipper teeth towards each other before dissolving, brings the ends of the pair of zipper teeth as close to each other as possible before dissolving to form a stop portion, makes the width of the stop portion smaller than the width of the pair of zipper teeth after they are engaged. Since the ends of the pair of zipper teeth can be brought as close to each other as possible, the gap between the heads of the pair of fabric tape ends that are not engaged by zipper teeth can be minimized, thereby minimizing the gap between the heads of the pair of fabric tape ends and avoiding the zipper from being exposed due to the gap between the heads of the pair of fabric tape ends, which would affect the integrity and appearance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the ends of the fabric strips on both sides of a zipper in the prior art.

[0018] Figure 2 This is a front view schematic diagram of a zipper according to an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0020] Figure 4 This is a schematic diagram of the zipper being installed in reverse according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram showing the lower end of the upper stop of the zipper in an embodiment of the present invention, which is shaped like the number "8".

[0022] Figure 6 This is a schematic diagram of the structure of the dissolving device for the stop portion of the zipper according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the operation of the dissolving device for the stop portion of the zipper according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of one type of pressure head structure in the zipper stop melting device according to an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of another type of pressure head structure in the zipper stop melting device of this embodiment of the invention.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] 1. Fabric tape

[0028] 11. With head

[0029] 2 Zipper teeth

[0030] 21 zipper teeth

[0031] 3. Pull the screwdriver

[0032] 4. Stop section

[0033] 4a Upper stop

[0034] 4b Lower stop

[0035] H, H' gap

[0036] 5. Ultrasonic generator

[0037] 6 push arm

[0038] 7. Pressure Head Detailed Implementation

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0040] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0043] like Figures 2 to 9 The image shows an embodiment of the zipper provided by the present invention. In the description of the present invention, for the zipper, the upper side refers to... Figure 2 The top and bottom sides of the paper refer to Figure 2 The bottom side of the paper, the vertical direction of the zipper is also called the length direction; the left side refers to... Figure 2 The left and right sides of the paper refer to Figure 2 The right side of the paper, and the left and right directions of the zipper, are also called the width direction.

[0044] See Figure 2 and Figure 3 The zipper in this embodiment includes a fabric tape 1, zipper teeth 2, and a zipper pull 3, with a pair of fabric tape 1 and a pair of zipper teeth 2.

[0045] The fabric strip 1 can be a woven fabric strip. A pair of fabric strips 1 are arranged opposite each other, and a pair of zipper teeth 2 are respectively provided on the pair of fabric strips 1. The pair of zipper teeth 2 can be respectively sewn on the opposite side edges of the pair of fabric strips 1. In this embodiment, preferably, each zipper tooth 2 is a spiral zipper tooth formed by winding nylon monofilaments in a constant direction, and each zipper tooth 2 includes multiple zipper teeth 21. That is, the zipper in this embodiment is preferably a nylon zipper. The zipper head 3 engages or disengages the pair of zipper teeth 2. The zipper head 3 is movably provided on the pair of zipper teeth 2, and the pair of zipper teeth 2 engages or disengages by moving the zipper head 3 up and down. The upper end and / or lower end of the pair of fabric strips 1 have a strip head 11 without zipper teeth 21. When the pair of zipper teeth 2 are engaged, there is a gap H between the strip head 11 at the ends of the pair of fabric strips 1.

[0046] The zipper in this embodiment also includes a stop 4 at at least one end of a pair of zipper teeth 2. The stop 4 is used to prevent the zipper head 3 from sliding out of the zipper teeth 21 from the end of the zipper teeth 2. The stop 4 is formed by dissolving the ends of the pair of zipper teeth 2 after they are pushed close to each other. The dissolution is preferably performed by ultrasonic dissolution. The width of the stop 4 is smaller than the width of the pair of zipper teeth 2 after they are engaged.

[0047] In this embodiment, the zipper is formed by pressing the ends of a pair of zipper teeth 2 towards each other before dissolving, bringing the ends of the pair of zipper teeth 2 as close to each other as possible before dissolving to form a stop 4. This makes the width of the stop 4 smaller than the width of the pair of zipper teeth 2 after they are engaged. Since the ends of the pair of zipper teeth 2 can be brought as close to each other as possible, the gap H between the heads 11 of the ends of the pair of fabric tapes 1 that are not engaged by the zipper teeth 21 can be minimized. This minimizes the gap H between the heads 11 of the ends of the pair of fabric tapes 1, preventing the zipper from being exposed during use and affecting its integrity and appearance.

[0048] See Figure 4 , Figure 4 The diagram shows the effect of reversing the zipper of this embodiment. Since the gap H between the head 11 of the two ends of the fabric strips 1 that are not engaged by the zipper teeth 21 is minimized, the gap H visible from the outside when the zipper is reversed is very small. When installed on a clothing pocket, the overall appearance and aesthetics are significantly improved.

[0049] In this embodiment, preferably, a stop portion 4 is provided at the upper and / or lower ends of a pair of zipper teeth 2. That is, a stop portion 4 can be provided at the upper end of a pair of zipper teeth 2, or at the lower end of a pair of zipper teeth 2, or both the upper and lower ends of a pair of zipper teeth 2 can be provided with a stop portion 4.

[0050] In this embodiment, the stop portion 4 located at the upper end of a pair of zipper teeth 2 is an upper stop portion 4a, and the stop portion 4 located at the lower end of a pair of zipper teeth 2 is a lower stop portion 4b. Preferably, see Figure 5 The pair of zipper teeth 2 are arranged in a figure-eight shape, gradually separating from top to bottom, at least at the lower end of the upper stop 4a. This minimizes wrinkles in the fabric tape 1, especially near the lower end of the stop 4a. The zipper pull 3 allows the pair of zipper teeth 2 to engage in a figure-eight shape at the lower end of the upper stop 4a. Preferably, the pair of zipper teeth 2 can also be arranged in an inverted figure-eight shape, gradually separating from bottom to top, at the upper end of the lower stop 4b. This also helps to reduce wrinkles in the fabric tape 1. The zipper pull 3 allows the pair of zipper teeth 2 to engage in an inverted figure-eight shape at the upper end of the lower stop 4b.

[0051] See Figure 3In this embodiment, preferably, the stop portion 4 is dissolved to the last zipper tooth 21 at the end of the pair of zipper teeth 2, thereby making the dissolved portion of the stop portion 4 shaped like a "T": the middle part of several zipper teeth 21 at the end of the pair of zipper teeth 2 is dissolved to form the vertical part of the "T" shape, and the last two left and right zipper teeth 21 at the end of the pair of zipper teeth 2 are dissolved to form the horizontal part of the "T" shape, thus forming the dissolved portion of the stop portion 4 shaped like a "T". Since ultrasonic dissolution is used, if only the middle part of the end of the pair of zipper teeth 2 is dissolved, it will cause burrs to be generated from the undissolved zipper teeth 21. However, in this embodiment, the stop portion 4 is dissolved to the last zipper tooth 21 at the end of the pair of zipper teeth 2, which can avoid the generation of burrs due to the presence of undissolved zipper teeth 21 at the end of the pair of zipper teeth 2.

[0052] In this embodiment, preferably, the length of the stop portion 4 is at least the length of three zipper teeth 21, that is, the stop portion 4 dissolves at least three zipper teeth 21 at the end of each zipper tooth row 2 to ensure dissolution strength and ensure that the stop portion 4 can effectively block the zipper head 3. More preferably, the length of the stop portion 4 is five to six zipper teeth 21, that is, the stop portion 4 dissolves five to six zipper teeth 21 at the end of each zipper tooth row 2, which can ensure and enhance dissolution strength.

[0053] See Figure 6 The zipper stop 4 melting device in this embodiment includes an ultrasonic generator 5, a push arm 6, and a pressure head 7. The ultrasonic generator 5 is used to melt a plurality of zipper teeth 21 at the ends of a pair of zipper tooth rows 2 to form the stop 4. The push arm 6 is used to push the plurality of zipper teeth 21 at the ends of the pair of zipper tooth rows 2 from left to right, bringing them closer together. The pressure head 7 is used to press down and fix the plurality of zipper teeth 21 at the ends of the pair of zipper tooth rows 2.

[0054] See Figure 7 In this embodiment, when the zipper is forming the stop part 4, the ends of a pair of zipper teeth 2 to be dissolved can be placed on the ultrasonic generator 5. The push arm 6 and the pressure head 7 respectively push and press several zipper teeth 21 at the ends of the pair of zipper teeth 2 to make them close to each other and press down to fix them. Then, the ultrasonic generator 5 performs ultrasonic dissolution on the pushed and fixed zipper teeth 21 to form the stop part 4.

[0055] In this embodiment, preferably, the shape of the pressure head 7 can be as follows: Figure 8 The "T" shape shown can also be as follows: Figure 9The T-shaped design shown ensures that the dissolving portion of the stop 4 is T-shaped, dissolving the stop 4 to the last zipper tooth 21 at the end of the pair of zipper teeth 2. This prevents burrs from forming due to undissolved zipper teeth 21 at the end of the pair of zipper teeth 2, thus reducing end burrs. It should be noted that the shape of the pressure head 7 refers to the shape of the end face of the pressure head 7 when it presses down onto the end of the zipper tooth 2, that is, the shape of the end face of the pressure head 7 that contacts the end of the zipper tooth 2.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A zipper, comprising: A pair of cloth strips (1); A pair of zipper teeth (2) are respectively provided on the pair of fabric tapes (1); The zipper pull (3) causes the pair of zipper teeth (2) to engage or disengage; Its characteristic is that it further includes: A stop (4) is provided at at least one end of the pair of zipper teeth (2); The stop portion (4) is formed by the melting of the ends of the pair of zipper teeth (2) after they are pushed close to each other. The width of the stop portion (4) is smaller than the width of the pair of zipper teeth (2) after they are engaged.

2. The zipper according to claim 1, characterized in that, The stop portion (4) is provided at the upper and / or lower ends of the pair of zipper teeth (2).

3. The zipper according to claim 1, characterized in that, The stop (4) located at the upper end of the pair of zipper teeth (2) is designated as the upper stop (4a), and the pair of zipper teeth (2) are arranged in a figure-eight shape that gradually separates from top to bottom at the lower end of the upper stop (4a).

4. The zipper according to claim 1, characterized in that, The stop (4) at the lower end of the pair of zipper teeth (2) is designated as the lower stop (4b), and the pair of zipper teeth (2) are arranged in an inverted "V" shape that gradually separates from bottom to top at the upper end of the lower stop (4b).

5. The zipper according to claim 1, characterized in that, The stop (4) dissolves into the last zipper tooth (21) at the end of the pair of zipper teeth (2).

6. The zipper according to claim 5, characterized in that, The melting portion of the stop part (4) is shaped like a "T".

7. The zipper according to claim 1, characterized in that, The length of the stop (4) is the length of at least 3 zipper teeth (21).

8. The zipper according to claim 7, characterized in that, The length of the stop (4) is the length of 5-6 zipper teeth (21).

Images