A zipper

Abstract

The invention discloses a zipper, the gap width d1 between a pair of zipper nylon chain arrays in the engaged state is set as 25.1% to 35.1% of the width d2 of the pair of nylon chain arrays in the engaged state, the color of the nylon chain array can be visually identified from the front side of the zipper through the gap, the puller, the side wing plate opposite to the back side of the puller is the second wing plate, the second wing plate and the first wing plate are provided with a connecting column connecting the second wing plate and the first wing plate, the end of the puller where the connecting column is located is the front end, the end opposite to the front end is the rear end, the first tooth rib for extruding the nylon chain is protruded on the second wing plate, the first tooth rib is arranged along the length direction of the puller, the first tooth rib is continuously arranged along the length direction, and the tooth rib comprises a first rib part on one side of the center line of the second wing plate and a second rib part on the other side of the center line of the second wing plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of zippers, in particular to a zipper. BACKGROUND

[0002] Back zipper includes a pair of chain belt, fixed on the chain belt nylon teeth, and used for making two chain belt nylon teeth engaged, separate puller, using the side of nylon teeth is located on the back; Chinese invention patent a zipper and the manufacturing method of zipper (authorization announcement number CN103813732B), discloses its pair of chain belt and a pair of nylon tooth array are colored as mutually different color; The pair of nylon tooth array is arranged on the back side, and when the pair of nylon tooth array is engaged, the gap width between the pair of chain belt is 10%-25% of the width when the pair of nylon tooth array is in the engaged state, the color of the nylon tooth array can be visually identified from the front side of the zipper through the gap, since the size of the nylon tooth itself is small, the size after engagement is also small, even if the above gap width is 25% of the width when the pair of nylon tooth array is in the engaged state, the above gap width is still very small, and the visual effect is not obvious, however, when the above gap width is greater than 25% of the width when the pair of nylon tooth array is in the engaged state, the zipper is pulled, and the tooth of the nylon tooth is finally caused to be turned over and lead to the tooth explosion of the zipper, the main reason is that the tooth muscle of the conventional back zipper puller is only arranged on one side of the center line of the puller connecting column, when the gap is too wide, the length of the chain belt arranged between the nylon tooth and the upper wing plate in the horizontal direction is short, there is a deflection space, when the zipper is closed, the nylon tooth may be pressed into the deflection space to produce tooth explosion.

[0003] In view of this, the above problems are further studied, and a zipper with obvious visual effect and without tooth explosion is provided. SUMMARY

[0004] Therefore, the present application aims to provide a zipper which can be quickly released.

[0005] In order to achieve the above purpose, the solution of the present application is as follows:

[0006] A zipper, comprising: a pair of oppositely arranged chain belts; each of the chain belts is sewn with a nylon tooth array, and the nylon tooth array is sewn on the side of the chain belt facing each other; the color of the pair of chain belts and the pair of nylon tooth arrays is different, the nylon tooth array is used as the back side when the zipper is used, and the width d1 of the gap between the pair of chain belts when the pair of zipper nylon tooth arrays is in the engaged state is set to 25.1%-35.1% of the width d2 when the pair of nylon tooth arrays is in the engaged state, and the color of the nylon tooth array can be visually identified from the front side of the zipper through the gap;

[0007] The slider is provided with a first wing plate opposite to the back side and a second wing plate opposite to the back side, a connecting column connecting the second wing plate and the first wing plate is arranged between the second wing plate and the first wing plate, one end of the slider where the connecting column is located is a front end, and an end opposite to the front end is a rear end, a first toothed rib for extruding the nylon chain array is protruded on the second wing plate, the first toothed rib is located behind the connecting column, the first toothed rib comprises a first rib part and a second rib part, the first rib part is located on one side of the center line of the connecting column, and the second rib part is located on the other side of the center line of the connecting column.

[0008] Further, the first left side wall and the first right side wall are arranged close to the tail of the second wing plate, the first left side wall and the first right side wall are symmetrically arranged, the first left side wall comprises a first curved section and a first straight section, one end of the first curved section close to the connecting column is a first starting point, the first curved section and the first straight section intersect at a first connecting point, the first right side wall comprises a second curved section and a second straight section, the second curved section and the second straight section intersect at a second connecting point, and one end of the second curved section close to the connecting column is a second starting point.

[0009] Further, the front end of the second rib part is arranged between a straight line connecting the first starting point and the second starting point to the rear side of the connecting column.

[0010] Further, the front end of the first rib part and the front end of the second rib part are located on the same vertical section in the width direction of the second wing plate, and the tail end of the first rib part and the tail end of the second rib part are located on the same vertical section in the width direction of the second wing plate.

[0011] Further, the ratio of the width of the first rib part to the width of the second rib part in the vertical section in the width direction of the slider is 0.5-2.

[0012] Further, the first toothed rib comprises a first width tapering part, a straight part and a second width tapering part from front to back, and the width d3 of the straight part is 40%-100% of the width d1 of the gap between the chain belts.

[0013] Further, the second wing plate is provided with a side horse hook lock needle hole, and the side horse hook lock needle hole overlaps the first width tapering part in the horizontal cross section.

[0014] Further, the second wing plate is not provided with a side horse hook lock needle hole.

[0015] Further, the first and second rib portions are symmetrically arranged along the centerline of the second wing plate.

[0016] Further, the tail end of the second width tapering portion does not exceed the line connecting the first and second connecting points.

[0017] Further, a pull tab mounting portion for mounting a pull tab is arranged on the second wing plate.

[0018] Further, the first and second rib portions are of an integral structure.

[0019] With the above structure, the zipper provided by the present application has the following technical effects:

[0020] By setting the width of the gap between the pair of fastener tapes when the pair of rows of fastener elements are in engagement to be 25.1% to 35.1% of the width of the pair of rows of fastener elements when the pair of rows of fastener elements are in engagement, the gap width is increased, the exposed area of the fastener elements is increased, the visual effect is more obvious, the second rib portion is arranged in the puller inner cavity where the deflection space is likely to be formed, the effect of inhibiting the deflection of the fastener elements is achieved, and the occurrence of the burst teeth is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Fig. 1 is a front view of a zipper according to Embodiment 1 of the present application;

[0022] Figure 2 Fig. 2 is a rear view of the zipper according to Embodiment 1 of the present application;

[0023] Figure 3 Fig. 3 is a rear view of the zipper according to Embodiment 1 of the present application, with the puller omitted;

[0024] Figure 4 Fig. 4 is a structure view of the second wing plate according to Embodiment 1 of the present application;

[0025] Figure 5 Fig. 5 is a structure view of the first wing plate according to Embodiment 1 of the present application;

[0026] Figure 6 Fig. 6 is a structure view of the second wing plate according to Embodiment 2 of the present application;

[0027] Fig. 1: 1 chain belt, 2 nylon chain row, 3 puller, 4 side horse hook lock needle hole, 5 first tooth muscle, 6 second tooth muscle, 31 first wing plate, 32 second wing plate, 33 connecting column, 311 second left side wall, 312 second right side wall, 321 first left side wall, 322 first right side wall, 323 first connection point, 324 second connection point, 325 first starting point, 326 second starting point, 51 first muscle part, 52 second muscle part, 53 first width tapering part, 54 straight part, 55 second width tapering part, 511 first arc surface, 512 first straight surface, 513 second arc surface, 521 third arc surface, 522 second straight surface, 523 fourth arc surface, 524 third straight surface, 525 fifth arc surface, 6 second tooth muscle, 7 puller mounting part, d1 width of gap between chain belts, d2 width when a pair of nylon chain rows are in meshing state, d3 straight part width d3. DETAILED DESCRIPTION

[0028] In order to further explain the technical solutions of the present application, the present application will be described in detail below through specific embodiments.

[0029] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features.

[0030] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a zipper is shown, which is a back zipper, comprising: a pair of oppositely arranged chain belts 1; each chain belt 1 is sewn with a row of nylon chain rows 2, and the nylon chain rows 2 are sewn on the side of the chain belt 1 facing each other; the color of the pair of chain belts 1 and the pair of nylon chain rows 2 is different, and the zipper is used with the nylon chain rows 2 as the back side, wherein the back side refers to the inner side of the paper in the paper surface, and the front side refers to Figure 1 . Figure 1The paper outer side of the paper, preferably, in the present embodiment, the nylon chain array 2 with the same side of the front side is colored by electroplating or the like, and the color of the colored nylon chain array 2 region is different from the color of the chain belt 1.

[0031] When the pair of nylon chain arrays 2 are in the engaged state, the width d1 of the gap between the pair of chain belts 1 is set to 25.1% to 35.1% of the width d2 when the pair of nylon chain arrays 2 are in the engaged state, and the color of the nylon chain array 2 can be visually recognized from the front side of the zipper through the gap.

[0032] The puller 3 is a back puller for engaging / disengaging the pair of nylon chain arrays 2, and the side wing plate opposite to the back side is a first wing plate 31, and the side wing plate opposite to the back side is a second wing plate 32, and the second wing plate 32 is provided with a pull tab mounting portion 7 for mounting a pull tab.

[0033] The first wing plate 31 and the second wing plate 32 are both axisymmetric structures, and the first wing plate 31 and the second wing plate 32 are arranged vertically and parallel to each other, and the second wing plate 32 and the first wing plate 31 are connected by a connecting column 33, and the connecting column 33 is also an axisymmetric structure. The connecting position of the connecting column 33 and the first wing plate 31 is located at the central position of the first wing plate 31 close to its front end, and the connecting position of the connecting column 33 and the second wing plate 32 is located at the central position of the second wing plate 32 close to its front end, and the end of the puller 3 where the connecting column 33 is located is the front end, and the end of the puller 3 opposite to the front end is the rear end, and the symmetry axes of the first wing plate 31 and the second wing plate 32 are located in the same vertical plane as the connecting column 33.

[0034] The first left side wall 321 and the first right side wall 322 are arranged symmetrically on both sides of the second wing plate 32 close to its rear end, the first left side wall 321 comprises a first curved section and a first straight section arranged adjacent to each other, the first curved section and the first straight section intersect at a first connecting point 323, and the end of the first curved section close to the connecting column 33 is a first starting point 325, the first right side wall 322 comprises a second curved section and a second straight section arranged adjacent to each other, the second curved section and the second straight section intersect at a second connecting point 324, and the end of the second curved section close to the connecting column 33 is a second starting point 326.

[0035] The second left side wall 311 and the second right side wall 312 are arranged on both sides of the first wing plate 31 close to the tail thereof, the thickness of the second left side wall 311 is greater than the thickness of the first left side wall 321, and the thickness of the second right side wall 312 is greater than the thickness of the first right side wall 322, and the direction of the above-mentioned thickness is perpendicular to the first wing plate and the second wing plate 32.

[0036] The second wing plate 32 is provided with a first tooth rib 5 for extruding the nylon tooth array 2, the first tooth rib 5 is arranged along the length direction of the puller 3, the first tooth rib 5 is continuously arranged along the length direction, the first tooth rib 5 includes a first rib part 51 and a second rib part 52, the first rib part 51 and the second rib part 52 can be formed as an integral structure, or can be independently arranged, in the embodiment, the first rib part 51 and the second rib part 52 are an integral structure.

[0037] The first rib part 51 is similar to the corresponding structure of the conventional back puller, and is specifically arranged as follows: the front end of the first rib part 51 is connected with the rear side of the connecting column 33, the rear side of the connecting column 33 refers to the curved surface of the connecting column 33 facing the rear end of the puller 3, one side of the first rib part 51 is close to the center line of the second wing plate 32, and the other side of the first rib part 51 is respectively a first arc surface 511, a first straight surface 512 and a second arc surface 513 from front to back, the width of the first rib part 51 where the first arc surface 511 and the second arc surface 513 are respectively located gradually decreases along the front-rear direction, and the width of the first rib part 52 where the first straight surface 512 is located remains unchanged along the front-rear direction.

[0038] The front end of the second rib part 52 can be arranged in the area between the straight line connecting the first starting point 325 and the second starting point 326 to the rear side of the connecting column 33 according to actual needs, the closer the front end of the second rib part 52 is to the rear side of the connecting column 33, the better the effect of preventing the tooth from turning over can be achieved, in the embodiment, the front end of the second rib part 52 is connected with the rear side of the connecting column 33, one side of the second rib part 52 is close to the center line of the second wing plate 32, and the other side of the second rib part 52 is respectively a third arc surface 521, a second straight surface 522, a fourth arc surface 523, a third straight surface 524 and a fifth arc surface 525 from front to back, the width of the second rib part 52 where the third arc surface 521, the fourth arc surface 523 and the fifth arc surface 525 are respectively located gradually decreases along the front-rear direction, and the width of the second rib part 52 where the second straight surface 522 and the third straight surface 524 are located remains unchanged along the front-rear direction.

[0039] The ratio of the width of the first rib part 51 to the width of the second rib part 52 in the vertical section of the puller 3 in the same width direction is in the range of 0.5-2, wherein the width of the first rib part 51 is slightly larger than the size of the corresponding structure of the conventional back puller, and the second rib part 52 arranged in the range can ensure sufficient contact area with the nylon tooth array 2, and achieve better effect of preventing the tooth from turning over.

[0040] The first tooth rib 5 has a first width tapering portion 53, a straight portion 54 and a second width tapering portion 55 from front to back. Specifically, the first width tapering portion 53 is composed of the first rib portion 51 where the first arc surface 511 is located, the second rib portion 52 where the third arc surface 521 is located and the second straight surface 522 is located. The straight portion 54 is composed of the first rib portion 51 where the first straight surface 512 is located and the second rib portion 52 where the third straight surface 524 is located. The second width tapering portion 55 is composed of the first rib portion 51 where the second arc surface 513 is located and the second rib portion 52 where the fifth arc surface 525 is located.

[0041] The side hook lock pin hole 4 and the first width tapering portion 53 completely overlap in the horizontal cross section. Specifically, the side hook lock pin hole 4 is located between the two width direction boundaries of the first width tapering portion 53, i.e. between the first arc surface 511 and the second straight surface 522. The side hook lock pin hole 4 is square, and the hole wall in the length direction of the side hook lock pin hole 4 is parallel to the second straight surface. Since the side hook lock pin hole 4 is a through structure from top to bottom, it will reduce the effect of extruding the nylon chain teeth to a certain extent. Therefore, the second straight surface 522 with a certain distance from the hook lock pin hole 4 is arranged at the position of the second rib portion 52 corresponding to the side hook lock pin hole 4, so as to ensure that the area of the first tooth rib 5 where the side hook lock pin hole 4 is arranged has sufficient effective tooth pressing area. The effective tooth pressing area refers to the area that is in frictional contact with the nylon chain tooth row 2 when the puller is pulled together. The structure that the side hook lock pin hole 4 is arranged between the two width direction boundaries of the first width tapering portion 53 is more convenient for manufacturing and processing the puller 3.

[0042] The width d3 of the straight portion 54 is 40% to 100% of the width d1 of the gap between the pair of chain belts 1. The straight portion 54 acts on the area where the nylon chain tooth row 2 is about to close. The straight portion arranged in this size range can better suppress the turnover of the nylon chain tooth row 2.

[0043] The first width tapering portion 53 can cooperate with each other when the puller slides to make the two nylon chain tooth rows 2 close to each other. The straight portion 54 presses the two nylon chain tooth rows 2 that have been engaged in the inner cavity of the puller 3. The first width tapering portion 53 gradually reduces the acting area with the nylon chain tooth row 2 by gradually reducing the width from front to back, thereby gradually reducing the friction between the first width tapering portion 53 and the nylon chain tooth row 2, and finally making the pulling more smooth and labor-saving.

[0044] The tail end of the second width tapering portion 55 does not exceed the line between the first connecting point 323 and the second connecting point 324. This setting aims to reduce the length of the first tooth rib 5 and reduce the area of interaction with the nylon chain tooth row 2 when the puller 3 is pulled together, so as to make the pulling of the puller 3 more smooth.

[0045] The first wing plate 31 is provided with a second tooth 6 for cooperating with the first tooth 5. Preferably, the length of the first tooth 5 is greater than the length of the second tooth 6. This design can achieve a better effect of pressing the teeth to suppress flipping and tooth breakage. The structure of the second tooth 6 is the same as the corresponding structure set on the conventional back pull head. The second tooth 6 is set along the length direction of the pull head 3. The front end of the second tooth 6 is located on the rear side of the connecting post 33 and is connected to the rear side of the connecting post 33. The rear side of the second tooth 6 is located at the tail of the first wing plate 31. The second tooth 6 is a long strip with a roughly fixed width, that is, the width of the second tooth 6 is roughly the same at different positions in the length direction. The center line of the second tooth 6 is on the same plane as the center line of the connecting post 33. The second tooth 6 has a left-right symmetrical structure with its center line as the axis of symmetry.

[0046] By setting the width of the gap between a pair of chain straps 1 when a pair of nylon chain teeth 2 are in the meshing state to 25.1% to 35.1% of the width of a pair of nylon chain teeth in the meshing state, the gap width is increased. A second rib 5 is provided in the inner cavity of the zipper head 3 where deflection space may be formed, so as to suppress the deflection of the nylon chain teeth, ensure good visual effect and prevent tooth breakage.

[0047] Implementation Method Two, This Implementation Method

[0048] like Figure 6 As shown, the difference between this embodiment and the first embodiment is that: this embodiment does not have a side hook locking pin hole. The first rib 51 and the first rib 52 are symmetrically arranged on the left and right along the center line of the second wing plate 32 and are independently arranged. Since there is no side hook locking pin hole and the first rib 51 and the first rib 52 are symmetrically designed, the resistance of the pull head is small and the force is even on the left and right when pulling and closing, so the pulling and closing is smoother.

[0049] The embodiments and accompanying drawings are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A zipper, characterized in that, include: A pair of opposing chain straps; each chain strap is sewn with a nylon chain tooth, the nylon chain tooth being sewn onto the side of the chain straps facing each other; the pair of chain straps and the pair of nylon chain teeth are different colors; when the zipper is in use, the nylon chain tooth is the back side; the width d1 of the gap between the pair of chain straps when the pair of nylon chain teeth are engaged is set to 25.1% to 35.1% of the width d2 of the pair of nylon chain teeth when engaged, allowing the color of the nylon chain teeth to be visually identified from the front side of the zipper through the gap; It also includes a pull tab for engaging / disengaging the pair of nylon chain teeth. The side of the pull tab opposite the rear side is a first wing plate, and the side of the pull tab opposite the rear side is a second wing plate. A connecting post is provided between the second wing plate and the first wing plate, with the end of the pull tab containing the connecting post being the front end and the end opposite the front end being the rear end. The second wing plate has a protruding first tooth rib for pressing the nylon chain teeth. The first tooth rib is located behind the connecting post and includes a first rib portion and a second rib portion. The first rib portion is located on one side of the centerline of the connecting post, and the second rib portion is located on... On the other side of the centerline of the connecting column; a first left side wall and a first right side wall are provided on both sides of the second wing plate near its tail. The first left side wall and the first right side wall are symmetrically arranged. The first left side wall includes a first curved segment and a first straight segment. The end of the first curved segment near the connecting column is the first starting point. The first curved segment and the first straight segment intersect at a first connection point. The first right side wall includes a second curved segment and a second straight segment. The second curved segment and the second straight segment intersect at a second connection point. The end of the second curved segment near the connecting column is the second starting point. The front end of the second rib is located between the straight line formed by the first starting point and the second starting point and the rear side of the connecting column.

2. A zipper as described in claim 1, characterized in that: The front ends of the first rib and the second rib are located on the vertical section of the second wing plate in the same width direction, and the rear ends of the first rib and the second rib are located on the vertical section of the second wing plate in the same width direction.

3. A zipper as described in claim 2, characterized in that: The ratio of the width of the first rib and the width of the second rib in the vertical section located in the same width direction of the pull head is in the range of 0.5-2.

4. A zipper as described in claim 2, characterized in that: The first toothed rib consists of a first width tapering section, a straight section, and a second width tapering section from front to back. The width d3 of the straight section is 40% to 100% of the width d1 of the gap between a pair of chain belts.

5. A zipper as described in claim 4, characterized in that: The second wing plate is provided with a side hook locking pin hole, which overlaps with the first width tapering portion in the horizontal cross section.

6. A zipper as described in claim 1, characterized in that: The second wing plate does not have a side hook lock pin hole.

7. A zipper as described in claim 6, characterized in that: The first rib and the second rib are arranged symmetrically on the left and right sides along the center line of the second wing plate.

8. A zipper as described in claim 4, characterized in that: The tail end of the second tapered portion does not exceed the line connecting the first connection point and the second connection point.

9. A zipper as described in any one of claims 1-8, characterized in that: The second wing plate is provided with a pull tab mounting part for mounting the pull tab.

10. A zipper as described in any one of claims 1-8, characterized in that: The first rib and the second rib are an integral structure.

Images