Zipper

Abstract

The utility model relates to the technical field of zipper structures, in particular to a zipper which comprises a pair of cloth belts. The zipper tooth rows are respectively arranged on the cloth belts; a slider that engages or separates the pair of fastener element rows; the stopper part is arranged on at least one end part of the pair of zipper tooth rows; the stop part is formed by dissolving the end parts of the pair of zipper tooth rows after being pushed and pressed to be close to each other, and the width of the stop part is smaller than that of the pair of meshed zipper tooth rows. The end parts of the pair of zipper tooth rows can be close to each other as much as possible, so that the gap between the belt head parts of the end parts of the pair of cloth belts without zipper tooth occlusion can be reduced as much as possible, and the gap between the belt head parts of the end parts of the pair of cloth belts is minimized; the phenomenon that the integrity and the appearance are affected due to the fact that a gap between the belt head portions of the ends of the cloth belts is exposed when the zipper is used is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener structure technical field, especially a zip fastener. BACKGROUND

[0002] According to the use demand, the zip fastener for the pocket of clothes, the internal pocket of bag and the like can be used positively or reversely. When the zip fastener is used reversely, the zipper teeth are arranged at the inner side of the pocket, and the zipper teeth cannot be observed in the non-opening condition, so that better appearance and integrity are obtained, and therefore the zip fastener is widely used.

[0003] Generally, the zip fastener is provided with a stop structure at both ends of the zipper tooth row for preventing the puller from sliding out of both ends of the zipper tooth row. Dissolving the end of the zipper tooth row to form the stop structure is a common way, for example, the lower stop piece of the zip fastener disclosed in the patent document with the announcement number CN2508603Y is put into a single filament at the end of the tooth chain, the single filament is fused with the end part of the tooth chain to form the lower stop piece of the zip fastener.

[0004] In the prior art, as shown in the figure, Figure 1 the end of the zipper tooth row 2 is dissolved to form the stop structure, and the corresponding end part of the double-sided cloth tape 1 will have a tape head part 11 without the zipper teeth, and a larger gap H' is left between the tape head parts 11 of the double-sided cloth tape 1. When the zip fastener is installed on the clothes or bag, the gap H' will be exposed to some extent, which affects the appearance and integrity. SUMMARY

[0005] In view of the above defects of the prior art, the technical problem to be solved by the utility model is to provide a zip fastener capable of minimizing the gap between the tape head parts of the double-sided cloth tape.

[0006] In order to solve the above technical problem, the utility model adopts the following technical scheme:

[0007] The utility model provides a zip fastener, which comprises: a pair of cloth tapes; a pair of zipper tooth rows arranged on the pair of cloth tapes respectively; a puller for engaging or separating the pair of zipper tooth rows; and a stop part arranged at at least one end of the pair of zipper tooth rows; the stop part is formed by dissolving the end of the pair of zipper tooth rows after being pushed and pressed to be close to each other, and the width of the stop part is smaller than the width of the pair of zipper tooth rows after being engaged.

[0008] Preferably, the upper end and / or the lower end of the pair of zipper tooth rows are provided with the stop part.

[0009] Preferably, the stop part arranged at the upper end of the pair of zipper tooth rows is an upper stop part, and the pair of zipper tooth rows are in the shape of "eight" which is gradually separated from top to bottom at the lower end of the upper stop part.

[0010] Preferably, the stopper provided at the lower end of the pair of fastener element rows is a lower stopper, and the pair of fastener element rows is in a reverse "8" shape gradually separated from bottom to top at the upper end of the lower stopper.

[0011] Preferably, the stopper dissolves to the last fastener element of the end of the pair of fastener element rows.

[0012] Preferably, the stopper dissolving position is in a "T" shape.

[0013] Preferably, the length of the stopper is at least the length of 3 fastener elements.

[0014] Preferably, the length of the stopper is the length of 5-6 fastener elements.

[0015] Compared with the prior art, the zipper has the following significant progress:

[0016] The zipper of the present application forms the stopper by pushing the end of the pair of fastener element rows towards each other before dissolving, and then dissolving to form the stopper, so that the width of the stopper is smaller than the width of the pair of fastener element rows after engagement. Since the end of the pair of fastener element rows can be as close to each other as possible, the gap between the head portions of the pair of fabric tape ends without fastener element engagement can be minimized, and the integrity and appearance of the zipper can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the double-sided fabric tape end of the zipper in the prior art.

[0018] Figure 2 is a front view of the zipper of the embodiment of the present application.

[0019] Figure 3 is Figure 2 is an enlarged view of part A in

[0020] Figure 4 is a schematic view of the zipper when reversed in the embodiment of the present application.

[0021] Figure 5 is a schematic view of the lower end of the upper stopper of the zipper in the embodiment of the present application in an "8" shape.

[0022] Figure 6 is a structural schematic view of the dissolving device of the stopper of the zipper in the embodiment of the present application.

[0023] Figure 7 is a working schematic view of the dissolving device of the stopper of the zipper in the embodiment of the present application.

[0024] Figure 8 is the pressing head structure schematic diagram of one form in the stop portion dissolving equipment of the zipper of the embodiment of the utility model.

[0025] Figure 9 is the pressing head structure schematic diagram of another form in the stop portion dissolving equipment of the zipper of the embodiment of the utility model.

[0026] Among them, the sign explanation is as follows:

[0027] 1 ribbon

[0028] 11 tape head

[0029] 2 zipper row

[0030] 21 zipper

[0031] 3 puller

[0032] 4 stop portion

[0033] 4a upper stop portion

[0034] 4b lower stop portion

[0035] H, H' gap

[0036] 5 ultrasonic generator

[0037] 6 push arm

[0038] 7 pressing head DETAILED DESCRIPTION

[0039] The specific embodiments of the utility model are further described in detail below in combination with the drawings. These embodiments are only used for describing the utility model, and are not limited to the utility model.

[0040] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements inside, for the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific situation.

[0042] In addition, in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise stated.

[0043] As Figures 2 to 9 Shown, as an embodiment of the zipper provided by the utility model.In the description of the utility model, for the zipper, the upper side refers to Figure 2 The upper side of the paper, the lower side refers to Figure 2 The lower side of the paper, the up-down direction of the zipper is also called the length direction, the left side refers to Figure 2 The left side of the paper, the right side refers to Figure 2 The right side of the paper, the left-right direction of the zipper is also called the width direction.

[0044] Referring to Figure 2 And Figure 3 The zipper of the embodiment comprises a cloth tape 1, a zipper tooth row 2 and a puller 3, and the cloth tape 1 and the zipper tooth row 2 are each provided with a pair.

[0045] Among them, the cloth tape 1 can be a cloth tape made of knitting. The pair of cloth tapes 1 are oppositely arranged, and the pair of zipper tooth rows 2 are respectively arranged on the pair of cloth tapes 1. The pair of zipper tooth rows 2 can be respectively sewn on the opposite tape side edges of the pair of cloth tapes 1. In the embodiment, preferably, each zipper tooth row 2 is a spiral zipper tooth row formed by winding nylon monofilament in a constant direction, and each zipper tooth row 2 comprises a plurality of zipper teeth 21, that is, the zipper of the embodiment is preferably a nylon zipper. The puller 3 makes the pair of zipper tooth rows 2 engage or separate, and the puller 3 is movably arranged on the pair of zipper tooth rows 2. The pair of zipper tooth rows 2 are engaged or separated by the up-down movement of the puller 3. The upper end and / or the lower end of the pair of cloth tapes 1 has a tape head portion 11 without the zipper teeth 21. When the pair of zipper tooth rows 2 are engaged, there is a gap H between the tape head portions 11 of the ends of the pair of cloth tapes 1.

[0046] The zipper of the embodiment further comprises a stop portion 4 arranged at at least one end of the pair of zipper tooth rows 2, and the stop portion 4 is used for preventing the puller 3 from sliding out of the zipper tooth 21 from the end of the zipper tooth row 2. The stop portion 4 is formed by dissolving after the end of the pair of zipper tooth rows 2 is pushed to be close to each other, and the dissolving preferably adopts ultrasonic dissolving. The width of the stop portion 4 is less than the width of the pair of zipper tooth rows 2 after engagement.

[0047] The zipper of the present embodiment, by pushing the end portions of the pair of zipper teeth 2 towards each other before dissolving, and then dissolving to form the stopper 4 after the end portions of the pair of zipper teeth 2 are as close to each other as possible, makes the width of the stopper 4 smaller than the width of the pair of zipper teeth 2 after the pair of zipper teeth 2 are engaged, and since the end portions of the pair of zipper teeth 2 can be as close to each other as possible, the gap H between the head portions 11 of the end portions of the pair of tape 1 where no zipper teeth 21 are engaged can be minimized, and the gap H between the head portions 11 of the end portions of the pair of tape 1 is minimized, and the integrity and appearance of the zipper when in use are not affected by the gap H between the head portions 11 of the end portions of the pair of tape 1 being exposed.

[0048] Referring to Figure 4 , Figure 4 An effect diagram when the zipper of the present embodiment is installed in reverse is shown, and since the gap H between the head portions 11 of the end portions of the pair of tape 1 where no zipper teeth 21 are engaged is minimized, the gap H visible from the outside when the zipper is installed in reverse is very small, and the effect of improving the integrity and appearance when the zipper is installed on a pocket of a garment is very significant.

[0049] In the present embodiment, preferably, the stopper 4 is provided at the upper end and / or the lower end of the pair of zipper teeth 2, that is, the stopper 4 can be provided at the upper end of the pair of zipper teeth 2, or the stopper 4 can be provided at the lower end of the pair of zipper teeth 2, or the stopper 4 can be provided at both the upper end and the lower end of the pair of zipper teeth 2.

[0050] In the present embodiment, the stopper 4 provided at the upper end of the pair of zipper teeth 2 is an upper stopper 4a, and the stopper 4 provided at the lower end of the pair of zipper teeth 2 is a lower stopper 4b. Preferably, referring to Figure 5 , the pair of zipper teeth 2 is in a "8" shape gradually separated from top to bottom at least at the lower end of the upper stopper 4a, so that the wrinkles of the tape 1 can be minimized, especially the wrinkles of the tape 1 near the lower end of the stopper 4a can be minimized, and the pair of zipper teeth 2 can be engaged in a "8" shape gradually separated from top to bottom at the lower end of the upper stopper 4a by the puller 3. Preferably, the pair of zipper teeth 2 can also be in an inverted "8" shape gradually separated from bottom to top at the upper end of the lower stopper 4, which is also beneficial to reduce the wrinkles of the tape 1, and the pair of zipper teeth 2 can also be engaged in an inverted "8" shape gradually separated from bottom to top at the upper end of the lower stopper 4b by the puller 3.

[0051] Referring to Figure 3In the embodiment, preferably, the stop portion 4 is dissolved to the last teeth 21 at the ends of the pair of rows of teeth 2, so that the dissolved portion of the stop portion 4 is in a "T" shape: the middle portion of the several teeth 21 at the ends of the pair of rows of teeth 2 is dissolved to form the vertical line of the "T", and the last two teeth 21 at the ends of the pair of rows of teeth 2 are dissolved to form the horizontal line of the "T", so that the dissolved portion of the stop portion 4 is in a "T" shape. Since the dissolution is performed by ultrasonic waves, if only the middle portion of the teeth 21 at the ends of the pair of rows of teeth 2 is dissolved, burrs will be generated on the teeth 21 that are not dissolved. However, in the embodiment, the stop portion 4 is dissolved to the last teeth 21 at the ends of the pair of rows of teeth 2, so that burrs are avoided due to the last teeth 21 at the ends of the pair of rows of teeth 2 that are not dissolved.

[0052] In the embodiment, preferably, the length of the stop portion 4 is at least the length of 3 teeth 21, i.e., the stop portion 4 is dissolved to at least 3 teeth 21 at the ends of each row of teeth 2, so as to ensure the dissolution strength and ensure that the stop portion 4 can effectively block the slider 3. Preferably, the length of the stop portion 4 is the length of 5-6 teeth 21, i.e., the stop portion 4 is dissolved to 5-6 teeth 21 at the ends of each row of teeth 2, so as to ensure and enhance the dissolution strength.

[0053] Referring to Figure 6 The dissolution device of the stop portion 4 of the zipper in the embodiment includes an ultrasonic generator 5, a push arm 6, and a pressing head 7. The ultrasonic generator 5 is used to dissolve the several teeth 21 at the ends of the pair of rows of teeth 2 to form the stop portion 4. The push arm 6 is used to push and press the several teeth 21 at the ends of the pair of rows of teeth 2 towards each other. The pressing head 7 is used to press and fix the several teeth 21 at the ends of the pair of rows of teeth 2.

[0054] Referring to Figure 7 In the embodiment, when the stop portion 4 is formed, the ends of the pair of rows of teeth 2 of the zipper to be dissolved are placed on the ultrasonic generator 5, the several teeth 21 at the ends of the pair of rows of teeth 2 are pushed and pressed towards each other by the push arm 6 and the pressing head 7, and then the teeth 21 that are pushed and pressed are ultrasonically dissolved by the ultrasonic generator 5 to form the stop portion 4.

[0055] In the embodiment, preferably, the shape of the pressing head 7 can be a "T" shape as shown in Figure 8 or a "U" shape as shown in Figure 9The "T"-shaped shape of the illustrated class can make the dissolution position of the stop portion 4 "T"-shaped, and the stop portion 4 is dissolved to the last zipper tooth 21 at the end of the pair of zipper tooth rows 2, thereby avoiding burrs caused by the existence of the zipper tooth 21 not dissolved at the end of the pair of zipper tooth rows 2, and achieving the effect of reducing the end burrs. It should be noted that the shape of the pressure head 7 refers to the shape of the end surface of the pressure head 7 pressed to the end of the zipper tooth row 2, that is, the shape of the end surface of the pressure head 7 in contact with the end of the zipper tooth row 2.

[0056] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the technical principles of the present application, can make a number of improvements and substitutions, these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A zipper comprising: a pair of cloth straps (1); A pair of zipper teeth (2) are respectively arranged on the pair of cloth tapes (1); A slider (3) for engaging or separating the pair of zipper teeth (2); It is characterized by further comprising: a stopper (4) provided at at least one end portion of the pair of zipper teeth (2); The stopper (4) is formed by the ends of the pair of zipper teeth (2) being pushed closer to each other and then dissolved, and the width of the stopper (4) is smaller than the width of the pair of zipper teeth (2) after biting.

2. The zipper according to claim 1, wherein: The stopper (4) is provided at the upper end and / or the lower end of the pair of zipper teeth (2).

3. The zipper according to claim 1, wherein: The stopper portion (4) provided at the upper end of the pair of zipper teeth (2) is an upper stopper portion (4a), and the pair of zipper teeth (2) are in an "eight" shape at the lower end of the upper stopper portion (4a) that gradually separates from top to bottom.

4. The zipper according to claim 1, wherein: The stopper portion (4) provided at the lower end of the pair of zipper teeth (2) is a lower stopper portion (4b), and the pair of zipper teeth (2) are in an inverted "eight" shape at the upper end of the lower stopper portion (4b) that gradually separates from bottom to top.

5. The zipper according to claim 1, wherein: The stopper portion (4) dissolves to the last zipper tooth (21) at the end of the pair of zipper tooth rows (2).

6. The slide fastener according to claim 5, wherein: The dissolving portion of the stopper (4) is in a T-shape.

7. The zipper according to claim 1, wherein: The length of the stop portion (4) is at least the length of three zipper teeth (21).

8. The slide fastener according to claim 7, wherein: The length of the stopper (4) is the length of 5-6 zipper teeth (21).

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