阅读说明：本技术 一种拉链的拉头结构和拉链 (Pull head structure of zipper and zipper ) 是由 吕濠 张祐诚 于 2021-02-09 设计创作，主要内容包括：本申请提供了一种拉链的拉头结构和拉链,拉链包括左右相对设置的布带(100)以及设置在布带上的链牙(110)。拉链的拉头结构包括拉头本体(200)以及拉片(300),拉头本体包括相互连接的上导板(210)和下导板(220),上导板与下导板之间形成导腔(230),其中一侧的导腔可供对应侧的链牙穿插进出；拉片与上导板活动连接,拉片包括辅助穿插件(310),辅助穿插件上形成有两端贯通的轨道腔(311)；辅助穿插件可相对拉头本体向上翻转,以使轨道腔和对应侧的导腔连通,对应侧的链牙的插销(120)经轨道腔进入拉头本体内部。本申请提供的拉链的拉头结构通过在拉片上设置辅助穿插件,并通过相对拉头主体翻转使用,从而起到方便拉链穿插的作用。(The application provides a pull head structure of a zipper and the zipper, wherein the zipper comprises a cloth belt (100) and zipper teeth (110), the left side and the right side of the cloth belt are oppositely arranged. The zipper head structure of the zipper comprises a zipper head body (200) and a zipper pull (300), wherein the zipper head body comprises an upper guide plate (210) and a lower guide plate (220) which are connected with each other, a guide cavity (230) is formed between the upper guide plate and the lower guide plate, and the guide cavity on one side can be used for the insertion of zipper teeth on the corresponding side; the pull piece is movably connected with the upper guide plate and comprises an auxiliary insertion piece (310), and a track cavity (311) with two through ends is formed in the auxiliary insertion piece; the auxiliary penetrating piece can be turned upwards relative to the slider body so as to enable the track cavity to be communicated with the guide cavity on the corresponding side, and the inserted pin (120) of the zipper tooth on the corresponding side enters the slider body through the track cavity. The application provides a pull head structure of zip fastener is through setting up supplementary plug-in components of wearing on the pulling-on piece to use through the upset of relative pull head main part, thereby play the effect that makes things convenient for the zip fastener to alternate.)

1. The utility model provides a pull head structure of zip fastener, the zip fastener is in including controlling the strap that relative setting was in and setting on the strap its characterized in that, the pull head structure of zip fastener includes:

the zipper comprises a zipper body, wherein the zipper body comprises an upper guide plate and a lower guide plate which are connected with each other, two guide cavities which are distributed left and right to enable the zipper to be opened and closed are formed between the upper guide plate and the lower guide plate, and the guide cavity on one side can be used for the zipper teeth on the corresponding side to penetrate in and out; and the number of the first and second groups,

the pull piece is movably connected with the upper guide plate and comprises an auxiliary insertion piece, and a track cavity with two through ends is formed in the auxiliary insertion piece; the auxiliary penetrating piece can be turned upwards relative to the slider body so that the track cavity is communicated with the guide cavity on the corresponding side, and the inserted pin of the zipper tooth on the corresponding side enters the slider body through the track cavity.

2. The slider structure of a slide fastener according to claim 1, wherein said auxiliary insertion member includes a connecting portion connected to said upper guide plate and a rail portion connected to said connecting portion; the auxiliary penetrating and inserting piece is provided with the connecting part and drives the track part to be in a use state formed after the track part is turned upwards relative to the upper guide plate;

the zipper teeth comprise first zipper teeth which can be freely inserted in and out, and the guide cavities comprise first guide cavities for the first zipper teeth to be inserted in; the track part is arranged on the same side of the first guide cavity, the track cavity is formed on the track part, and the track cavity is provided with a track leading-in port departing from the first guide cavity and a track leading-out port facing the first guide cavity;

in the width direction of the slider body, the track cavity is arranged in an outward opening manner.

3. The slider structure of a slide fastener according to claim 2, wherein in the use state, the direction from the upper guide plate to the lower guide plate is a top-to-bottom direction, the rail portion has an L-shaped cross section, the rail portion includes a first rail plate formed to extend downward from the connecting portion and a second rail plate formed to extend outward in a width direction of the slider body from a lower end edge of the first rail plate, and inner side surfaces of the first rail plate and the second rail plate define the rail cavity.

4. The slider structure of a slide fastener according to claim 2, wherein in said use state, the direction from said upper guide plate to said lower guide plate is from top to bottom, said rail portion is provided in an integrated and downwardly concave arc-shaped plate, the inner side surface of said arc-shaped plate is a smooth arc surface, and said inner side surface of said arc-shaped plate encloses said rail cavity.

5. A slider structure for a slide fastener as claimed in claim 2, wherein said connecting portion is provided with a notch communicating with said track cavity.

6. The slider structure of a slide fastener according to claim 5, wherein a length of said notch is less than or equal to a length of said insert pin of said first element.

7. The slider structure of a slide fastener according to claim 5, wherein in the use state, in a direction from the slider body to the auxiliary pierce insert, the notch has a notch rear edge away from the slider body, and the rail portion has a rail rear edge away from the slider body;

in the width direction of the pull head body, the rear edge of the notch is arranged in a backward inclining mode, and the rear edge of the track is arranged in a forward inclining mode.

8. The slider structure of a slide fastener according to claim 2, wherein said auxiliary insert-through member further comprises a grip portion provided at an end of said connecting portion and said rail portion remote from said slider body.

9. The slider structure of a slide fastener according to claim 8, wherein in the use state, the grip portion is provided so as to be inclined upward in a rearward direction with a direction from the slider body to the auxiliary pierce insert being a front-to-rear direction and a direction from the upper guide to the lower guide being a top-to-bottom direction.

10. The slider structure of a slide fastener according to claim 9, wherein said grip portion is provided with an anti-slip rib.

11. The slider structure of a slide fastener according to claim 1, wherein said pull-tab further comprises a connecting member, one end of said connecting member is pivotally connected to said upper guide plate, and the other end of said connecting member is fixedly connected to said auxiliary insertion member; alternatively, the first and second electrodes may be,

the connecting piece and the auxiliary inserting piece are integrally arranged, and one end, facing the pull head body, of the connecting piece is pivoted with the upper guide plate.

12. The slider structure of a slide fastener according to claim 1, wherein said auxiliary piercer is made of a soft elastomeric material.

13. A slider structure as claimed in any of claims 1 to 12, characterised in that said track cavity is provided with a gradually expanding flared shape in a direction away from said slider body.

14. A slider structure of a slide fastener as claimed in any of claims 1 to 12, wherein the length of the track cavity is greater than the length of the slider body in a direction along the length of the tapes; in the width direction of the cloth belt, the width of the track cavity is larger than that of the guide cavity on the corresponding side.

15. The slider structure of a slide fastener according to claim 14, wherein a height of said track cavity is greater than a height of said slider body.

16. A slide fastener comprising a slider structure of the slide fastener according to any one of claims 1 to 15.

Technical Field

The application relates to the technical field of zippers, in particular to a zipper puller structure and a zipper.

Background

In daily life, in order to correctly use the slide fastener, it is necessary to accurately insert the insert pin at the bottom end of the fastener element into the slider. The insertion of the zipper is not difficult for general people, but for some people, such as children, the elderly, and the handicapped with inconvenient hand movements, the zipper is difficult to be inserted accurately. In order to solve the problem, some improvements have been proposed in the industry, such as adding an additional auxiliary insertion component such as a wider slider cover at the slider of the zipper, but such a design requires additional assembly and is costly on one hand, and the design also increases the volume of the slider, making it bulky, complex and cumbersome on the other hand. Therefore, the development of a zipper with simple structure and convenient insertion becomes a problem to be solved urgently.

Disclosure of Invention

The purpose of the embodiment of the application is as follows: the utility model provides a pull head structure of zip fastener to solve the difficult technical problem who alternates of zip fastener that exists among the prior art.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

first aspect, this application provides a pull head structure of zip fastener, and the zip fastener includes the strap and the chain tooth of setting on the strap of controlling relative setting, and the pull head structure of zip fastener includes:

the zipper puller comprises a puller body, wherein the puller body comprises an upper guide plate and a lower guide plate which are connected with each other, two guide cavities which are distributed left and right to open and close the zipper are formed between the upper guide plate and the lower guide plate, and the guide cavity on one side can be used for the zipper teeth on the corresponding side to penetrate in and out; and the number of the first and second groups,

the pull piece is movably connected with the upper guide plate and comprises an auxiliary inserting piece, and a track cavity with two through ends is formed in the auxiliary inserting piece; the auxiliary penetrating piece can be turned upwards relative to the slider body so that the track cavity is communicated with the guide cavity on the corresponding side, and the inserted pin of the zipper tooth on the corresponding side enters the slider body through the track cavity.

In one embodiment, the auxiliary inserting piece comprises a connecting part connected with the upper guide plate and a track part connected with the connecting part; the auxiliary penetrating and inserting piece is provided with a connecting part and drives the track part to be in a use state formed after the track part is turned upwards relative to the upper guide plate;

the zipper teeth comprise first zipper teeth which can be freely inserted in and out, and the guide cavities comprise first guide cavities for the first zipper teeth to be inserted in; the track part is arranged on the same side of the first guide cavity, a track cavity is formed on the track part, and the track cavity is provided with a track leading-in port deviating from the first guide cavity and a track leading-out port facing the first guide cavity;

in the width direction along the pull head body, the track cavity is arranged in an outward opening manner.

In one embodiment, in the use state, the direction from the upper guide plate to the lower guide plate is the direction from top to bottom, the cross section of the rail portion is L-shaped, the rail portion includes a first rail plate and a second rail plate, the first rail plate is formed by extending downwards from the connecting portion, the second rail plate is formed by extending outwards from the lower end edge of the first rail plate along the width direction of the slider body, and the inner side surfaces of the first rail plate and the second rail plate define a rail cavity.

In one embodiment, in a use state, the direction from the upper guide plate to the lower guide plate is the direction from top to bottom, the rail portion is an integrated arc-shaped plate which is concave downwards, the inner side face of the arc-shaped plate is a smooth arc face, and the inner side face of the arc-shaped plate is enclosed to form a rail cavity.

In one embodiment, the connecting portion is provided with a notch communicating with the track cavity.

In one embodiment, the length of the notch is less than or equal to the length of the pin of the first tooth element.

In one embodiment, in the use state, the direction from the slider body to the auxiliary penetrating piece is the front-to-back direction, the notch is provided with a notch back edge far away from the slider body, and the track part is provided with a track back edge far away from the slider body;

in the width direction of the puller body, the rear edge of the notch is arranged in a backward inclining mode, and the rear edge of the rail is arranged in a forward inclining mode.

In an embodiment, the auxiliary penetrating piece further includes a holding portion, and the holding portion is disposed at one end of the connecting portion and the rail portion away from the slider body.

In one embodiment, in the use state, the direction from the slider body to the auxiliary insert is the front-to-back direction, and the direction from the upper guide plate to the lower guide plate is the top-to-bottom direction, and the holding portion is arranged to be inclined upward in the backward direction.

In one embodiment, the grip portion is provided with anti-slip ribs.

In one embodiment, the pulling piece further comprises a connecting piece, one end of the connecting piece is pivoted with the upper guide plate, and the other end of the connecting piece is fixedly connected with the auxiliary inserting piece; alternatively, the first and second electrodes may be,

the connecting piece and the auxiliary inserting piece are integrally arranged, and one end of the connecting piece, facing the pull head body, is pivoted with the upper guide plate.

In one embodiment, the auxiliary puncture is made of a soft elastomeric material.

In one embodiment, the track cavity is provided in a flared configuration that gradually enlarges in a direction away from the slider body.

In one embodiment, the length of the track cavity is greater than the length of the slider body in the length direction of the cloth tape; the width of the track cavity is larger than that of the guide cavity on the corresponding side in the width direction of the cloth belt.

In one embodiment, the height of the track cavity is greater than the height of the slider body.

In a second aspect, the present application proposes a slide fastener comprising a slider structure of a slide fastener as previously described.

The beneficial effect of the slider structure of zip fastener that this application embodiment provided lies in: because the auxiliary insertion piece is arranged on the pulling piece, the user can realize the accurate and convenient insertion of the zipper through the following simple steps: firstly, turning the pull piece upwards to the other side relative to the pull head body; secondly, inserting a bolt at the bottom end of the zipper tooth into the track cavity from one end of the track cavity of the auxiliary penetrating and inserting piece; and thirdly, because the track cavity is communicated with the guide cavity on the corresponding side of the puller body, the inserted pin of the zipper teeth can enter the puller body under the guide action of the track cavity, and thus the accurate zipper penetrating operation is completed. Compared with the existing auxiliary inserting design in the industry, the inserting operation of the zipper is decomposed into three simple steps of simply turning up to form the inserting track, and then quickly, conveniently and accurately inserting the inserting track into the zipper head main body, so that the purpose of conveniently and accurately inserting the zipper by the old, children, people with hand dysfunction and even the general public can be achieved; moreover, this application is the design of the pulling-on piece itself that utilizes the zip fastener, and need not to add any part in the pull head main part, and the design of the pulling-on piece of this application also can not have the risk of droing like directly adding the part on the pull head body in addition, consequently, the design of this application has the advantage that the structure is simple more safety and more accords with the use logic.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of a zipper in use according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a slider structure of a slide fastener according to an embodiment of the present application in a non-use state;

FIG. 3 is a schematic structural view of a slider structure of a slide fastener according to an embodiment of the present application in a use state;

FIG. 4 is a top view of a slider structure of a slide fastener provided in accordance with an embodiment of the present application in a use state;

FIG. 5 is a side view of a slider structure of a slide fastener provided in accordance with an embodiment of the present application in a use state;

FIG. 6 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a use state;

FIG. 7 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a use state;

FIG. 8 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a non-use state;

FIG. 9 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a non-use state;

FIG. 10 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a non-use state;

fig. 11 is a schematic structural view of a slider structure of a slide fastener according to another embodiment of the present application in a use state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the present application, and the specific meanings of the above terms may be understood by those skilled in the art according to specific situations. The terms "first", "second" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solutions provided in the present application, the following detailed description is made with reference to specific drawings and examples.

The embodiment of the application provides a pull head structure of a zipper.

Referring to fig. 1 to 3, in an embodiment, a slide fastener includes tapes 100 disposed opposite to each other in left and right directions and fastener elements 110 disposed on the tapes 100. The slider structure of the slide fastener includes a slider body 200 and a pull tab 300. Specifically, the slider body 200 includes an upper guide plate 210 and a lower guide plate 220 connected to each other, two guide cavities 230 distributed left and right to open and close the zipper are formed between the upper guide plate 210 and the lower guide plate 220, wherein the guide cavity 230 on one side can be used for the insertion and the exit of the corresponding zipper element 110; the pull tab 300 is movably connected with the upper guide plate 210, the pull tab 300 comprises an auxiliary insertion piece 310, and a track cavity 311 with two through ends is formed on the auxiliary insertion piece 310; the auxiliary penetrating member 310 may be turned upward relative to the slider body 200 so that the track cavity 311 communicates with the guide cavity 230 on the corresponding side, and the insert pin 120 of the element 110 on the corresponding side enters the interior of the slider body 200 through the track cavity 311.

Based on the structural design, in the embodiment, since the auxiliary insertion piece 310 is provided on the pull tab 300, the user can realize the accurate and convenient insertion of the zipper through the following simple steps: firstly, turning the pull piece 300 upwards to the other side relative to the slider body; secondly, inserting the bolt 120 at the bottom end of the zipper element 110 into the track cavity 311 from one end of the track cavity 311 of the auxiliary penetrating piece 310; thirdly, since the track cavity 311 is communicated with the guide cavity 230 on the corresponding side of the slider body, the insert pin 120 of the fastener element 110 can enter the slider body smoothly under the guiding action of the track cavity 311, thereby completing the accurate insertion operation of the zipper. Compared with the existing auxiliary inserting design in the industry, the inserting operation of the zipper is decomposed into three simple steps of simply turning up to form the inserting track, and then quickly, conveniently and accurately inserting the inserting track into the zipper head main body, so that the purpose of conveniently and accurately inserting the zipper by the old, children, people with hand dysfunction and even the general public can be achieved; moreover, the design of the pull tab 300 of the zipper is utilized, any part does not need to be added on the slider body 200, and the design of the pull tab 300 of the zipper does not have the falling risk like the situation that the part is directly added on the slider body 200, so that the design of the zipper has the advantages of simpler and safer structure and more accordance with the use logic.

Referring to fig. 1 to 3, in an embodiment, the pull tab 300 further includes a connecting member 320, one end of the connecting member 320 is pivotally connected to the upper guide plate 210, and the other end of the connecting member 320 is fixedly connected to the auxiliary insertion member 310, wherein the slider body and the connecting member 320 may be made of a common material such as metal or plastic, and have a conventional structure, and the auxiliary insertion member 310 is made of the same or different material such as plastic, and then are connected together in various manners. Of course, in other embodiments, the connecting member 320 may be integrated with the auxiliary insert 310, i.e. integrally made of the same material, and then one end of the connecting member 320 facing the slider body 200 is pivotally connected to the upper guide plate 210.

Specifically, in the present embodiment, the auxiliary penetration member 310 includes a connection portion 312 connected to the upper guide plate 210 and a rail portion 313 connected to the connection portion 312. The connecting portion 312 mainly serves as a connecting portion for opening and closing the upper guide plate 210, and is pivoted to the upper guide plate 210 by a connecting member 320, and the rail portion 313 having a rail cavity 311 is used as a guide portion for insertion. In actual use, the auxiliary penetrating piece 310 has a connecting portion 312 and drives the rail portion 313 to be turned upwards relative to the upper guide plate 210, so as to form a use state as shown in fig. 1 and 3; of course, when no zipper pull-through operation is required, the auxiliary pull-through tab and connector 320 can be in a non-use state with the pull tab 300 facing downward as shown in FIG. 2, as in conventional zipper pull tab 300 designs. It should be noted that, the shape of the auxiliary penetrating member 310 is not limited to the form shown in fig. 1 to 3, and the shape color and the like may be set according to actual requirements in the case of satisfying the auxiliary penetrating function, for example, in the embodiments shown in fig. 6 to 11, the auxiliary penetrating member 310 may be various, such as a shell, an airplane, a starfish, a love, and the like, and is not limited herein. In addition, according to the needs of customers, the outer side of the auxiliary wearing pieces 310 may be customized to their LOGO or trademark.

It should also be noted that, for better feel in use, in one embodiment, the auxiliary puncture insert 310 is made of a material that is preferably soft and elastic, such as, but not limited to, silicone, etc. Of course, in other embodiments, the auxiliary puncture insert 310 may be made of a hard material.

Specifically, in the structure of the zipper, the element 110 includes a first element 110 freely inserted in and out, and the guide cavity 230 includes a first guide cavity 230 through which the first element 110 is inserted. The track portion 313 is arranged on the same side of the first guide cavity 230, a track cavity 311 is formed in the track portion 313, the track cavity 311 is provided with a track introducing port 317 departing from the first guide cavity 230 and a track introducing port 315 facing the first guide cavity 230, and the track cavity 311 is arranged in an outward opening manner in the width direction of the slider body 200, so that the opening area of the track introducing port 317 can be effectively increased, the plug pin 120 can be inserted into the track cavity 311 from more angles and then enters the first guide cavity 230, and the purpose of further improving the penetrating convenience of the zipper is achieved.

Further, referring to fig. 1, 3 to 5, in an embodiment, the track cavity 311 is disposed in a gradually expanding flaring shape along a direction departing from the slider body 200. In other words, in the track cavity 311, the track cavity 311 is gradually reduced in the direction toward the slider body along the auxiliary penetrating member 310 to achieve the guiding function of the first guide cavity 230, the track introduction port 317 should be larger than the track introduction port 315, and at the same time, the track introduction port 315 should be larger than or equal to the introduction port of the first guide cavity 230, so that the insert pin 120 can be more accurately and smoothly inserted into the slider body. In addition, in order to facilitate the turning of the pull tab 300, a certain distance should be formed between the track outlet 315 and the inlet of the first guide cavity 230 in the use state.

Further, as shown in fig. 4 and 5, in one embodiment, the length L1 of the track cavity 311 is greater than the length L2 of the slider body 200 in the direction along the length of the tapes 100; in the width direction along the cloth tape 100, the width of the track cavity 311 is greater than that of the guide cavity 230 on the corresponding side, and it can be understood that after the lengthened track cavity 311 is widened, the convenience of inserting the zipper is more favorably improved. Similarly, as shown in FIG. 5, in one embodiment, the height H1 of the track cavity 311 is preferably greater than the height H2 of the slider body 200, so as to facilitate insertion of the zipper and ensure a tapered guiding action of the track cavity 311 in the direction from the auxiliary slider 310 toward the slider body.

Specifically referring to fig. 1 and 3 to 5, in an embodiment, when in use, the direction from the upper guide plate 210 to the lower guide plate 220 is the top-to-bottom direction, the cross section of the rail portion 313 is L-shaped, the first rail plate 313a is formed by extending downward from the connecting portion 312, the second rail plate 313b is formed by extending outward from the lower end edge of the first rail plate 313a along the width direction of the slider body 200, and the inner side surfaces of the first rail plate 313a and the second rail plate 313b enclose a rail cavity 311. Thus, the insert pin 120 can be guided by the track cavity 311 to enter the slider body easily. However, referring to fig. 6, in another embodiment, also in the use state, the direction from the upper guide plate 210 to the lower guide plate 220 is the top-to-bottom direction, the rail portion 313 is an integrated arc-shaped plate recessed downwards, the inner side surface of the arc-shaped plate is a smooth arc surface, and the inner side surface of the arc-shaped plate forms the rail cavity 311, i.e. the rail cavity is radially enlarged backwards by taking the center line of the first guide cavity 230 as the axis. In this way, the insert pin 120 can enter the slider body through the guide of the track cavity 311.

Further, referring to fig. 1 and 3, in an embodiment, the connecting portion 312 is provided with a notch 316 communicating with the track cavity 311. Specifically, the length of notch 316 is less than or equal to the length of pin 120 of first tooth element 110. In the use state, the direction from the upper guide plate 210 to the lower guide plate 220 is the direction from top to bottom, on one hand, during insertion, the insertion state of the plug pin 120 can be known through the gap 316, and on the other hand, the arrangement of the gap 316 breaks through the limitation of the track portion 313 in the upward direction, so that the actual inlet area entering the track cavity 311 is effectively enlarged, and the purpose of further facilitating the insertion of the zipper is achieved. Of course, in order to ensure the tapered guiding function of the track cavity 311 in the direction from the auxiliary stab 310 toward the slider body, a guide fence is further provided in front of the notch 316, and a lower edge of the guide fence and a front edge of the second track plate 313b form a track outlet 315.

Further, referring to fig. 4, in an embodiment, in the use state, the direction from the slider body 200 to the auxiliary penetrating member 310 is the front-to-back direction, the notch 316 has a notch rear edge 316a far from the slider body 200, and the track portion 313 has a track rear edge 313c far from the slider body 200; the notch rear edge 316a is inclined rearward and the rail rear edge 313c is inclined forward in the width direction of the slider body 200. In other words, the gap rear edge 316a and the track rear edge 313c form an included angle therebetween, which is beneficial to enlarging the actual area of the track introduction port 317 and further facilitates the insertion of the zipper. In addition, the edges of the auxiliary penetrating piece 310 are designed to be rounded to avoid scratching the finger by sharp corners.

To facilitate pulling of the pull tab 300, the auxiliary pull-through member 310 further includes a grip portion 314, and the grip portion 314 is disposed at one end of the connecting portion 312 and the rail portion 313 away from the slider body 200, and is preferably integrally disposed with the auxiliary pull-through member 310. The holding portion 314 may be designed in various shapes, such as a plate shape as shown in fig. 2 to 5, or a ball shape as shown in fig. 7 in another embodiment, and the ball-shaped holding portion 314 facilitates the complete and stable holding of fingers.

As shown in fig. 5 in particular, in an embodiment, in the use state, the direction from the slider body 200 to the auxiliary pierce insert 310 is the front-to-back direction, and the direction from the upper guide plate 210 to the lower guide plate 220 is the top-to-bottom direction, and the grip 314 is disposed to be inclined upward in the backward direction. In other words, the grip portion 314 is in a shape tilted upward and rearward, and the tilting angle is preferably 0 to 90 degrees, so that the pulling of the pull tab 300 is facilitated by the tilted arrangement of the grip portion 314.

Further, referring to fig. 1 to 5, in an embodiment, the grip portion 314 is provided with an anti-slip rib 314 a. The anti-slip ribs 314a mainly play a role in preventing fingers from slipping when the fingers pinch the holding portion 314, and may be a plurality of bent anti-slip ribs 314a arranged at intervals on the upper and lower surfaces of the holding portion 314 as shown in fig. 3, or may be other shapes, which is not limited herein.

The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.