Zipper puller, zipper using zipper puller and daily necessities with opening and closing functions

Abstract

The invention discloses a zipper head with a function of reducing zipper damage, which comprises an upper cover plate, a lower cover plate and a connecting body, wherein the lower cover plate is arranged opposite to the upper cover plate, the connecting body is connected with the upper cover plate and the lower cover plate, and the edges of two sides of the lower cover plate are respectively provided with a side wall; the upper cover plate is provided with an upper inner surface and an upper outer surface, and the lower cover plate is provided with a lower inner surface and a lower outer surface; an internal channel is formed among the upper inner surface, the lower inner surface, the side wall and the connecting body; the zipper head is characterized in that the upper inner surface and / or the lower inner surface are / is provided with a pair of longitudinal grooves which are arranged in parallel, and each groove at least accommodates a part of a combination die boundary line mark formed in the production process of the zipper head so as to reduce scratch damage to a zipper caused by overflowing materials at the part of the combination die boundary line mark.

Description

Technical Field

[0001] The invention relates to a zipper head, in particular to a zipper head with the function of reducing scratch damage to a zipper, so as to reduce the scratch damage to a zipper caused by overflow of the zipper head at a mold boundary mark. Background Art

[0002] The assembly of the zipper head generally consists of an upper cover plate, a lower cover plate, a pair of side walls and a connecting body connecting the upper cover plate and the lower cover plate, so that the zipper head has an internal passage. When the zipper head is moved, the internal passage enables the opposite fastening elements of the zipper to be fastened or separated with each other in the zipper head.

[0003] like Figure 1 As shown, it shows a stereoscopic view of a conventional zipper head. The zipper head 1 has an upper cover plate 11 and a lower cover plate 12 arranged opposite to each other. The upper cover plate 11 has an upper outer surface 111 and an upper inner surface 112, and the lower cover plate 12 has a lower outer surface 121 and a lower inner surface 122. A connecting body 13 connects the upper cover plate 11 and the lower cover plate 12 at the front end of the zipper head 1, and the two side edges of the upper cover plate 11 and the lower cover plate 12 each have a side wall 14, and a pair of extension bodies 17 are respectively combined with the corresponding side wall 14 and the lower inner surface 122 of the lower cover plate 12. A group of sliding blocks (not shown in the figure) in a zipper head mold produce a combination mold boundary line mark a and b. A pull handle 18 is arranged on the upper outer surface 111. The pull handle 18 can be arranged on the upper outer surface 111 and / or the lower outer surface 121 as needed in actual production.

[0004] The manufacturing of the zipper head is carried out through a zipper head mold. First, metal or plastic melt is injected into the mold, and then cooled and demolded to form the zipper head. The internal channel of the zipper head is formed by moving at least two mutually matching sliding blocks into the zipper head mold during die casting or injection molding. After the injection molding is completed, the space vacated by the sliding blocks after exiting the zipper head mold forms the internal channel in the zipper head.

[0005] Figure 2 and Figure 3 The schematic diagrams respectively disclose that after the zipper head 1 is cut open, the upper inner surface 112 and the lower inner surface 122 are both arranged upward, and the upper inner surface 112 and the lower inner surface 122 respectively have a combination of mold boundary marks a, b and c generated by the set of sliding blocks, that is, the upper inner surface 112 and the lower inner surface 122 respectively have a pair of longitudinal mold boundary marks a, a pair of front end transverse mold boundary marks b and a pair of rear end transverse mold boundary marks c.

[0006] Among them, each front end transverse mold boundary mark b is located at the front end of the zipper head 1 and is connected to the front end of each longitudinal mold boundary mark a; each rear end transverse mold boundary mark c is located at the rear end of the zipper head 1 and is connected to the rear end of each longitudinal mold boundary mark a; each vertical mold boundary mark d is located on both sides of the connecting body 13 and is connected to each front end transverse mold boundary mark b.

[0007] In addition, from Figure 2 It can be clearly observed that each longitudinal mold boundary mark a is the necessary place for the multiple fastening elements 4 and their fixing lines 41 to be fastened and separated in the zipper head 1, and the fixing lines 41 are sewing lines or warp and weft yarns, etc. Therefore, this place must be kept smooth without overflow 5 or scratches 6 to make the zipper durable.

[0008] In fact, during the casting process of the zipper head, the set of sliding blocks are constantly closing and separating with each other, and the continuous collision, wear or other factors will cause the phenomenon of overflow 5 at the positions of the mold boundary marks a, b and c, and protrude a plurality of the upper inner surfaces 112 and / or the lower inner surfaces 122. Figure 3 As shown, when the set of sliding blocks exits the zipper head mold, the tail end of each sliding block is often damaged, and one or more uneven scratches 6 are scratched on the upper inner surface 112 and / or the lower inner surface 122 of the zipper head 1, and each of the scratches 6 mostly appears on one side or even on both sides of the longitudinal mold boundary mark a.

[0009] The overflow 5 remaining from the aforementioned mold boundary marks a, b and c will scratch the zipper. For example, the overflow 5 from the longitudinal mold boundary mark a of the zipper head 1 on the upper inner surface 112 will scratch a waterproof layer attached to the surface of a pair of supporting cloth tapes of the zipper, and even damage the surface of multiple fastening elements 4, or wear the sewing fixing lines of multiple fastening elements 4 and the pair of supporting webbings, etc. For example, when the aforementioned overflow or scratches cut off the fixing lines 41 fixing the multiple fastening elements, it will cause multiple fastening elements 4 to fall off from the pair of supporting cloth tapes, and make the zipper unable to be opened and closed, which will make the items equipped with the zipper unusable.

[0010] In addition, the aforementioned overflow 5 or scratches 6 will wear the surfaces of the plurality of fastening elements made of plastic steel or metal, and if the zipper is applied to articles such as clothing, the external aesthetics of the clothing will be destroyed.

[0011] Therefore, the conventional method for dealing with the aforementioned overflow is to use a relatively small file to insert into the zipper head 1 to scrape off the overflow 5, which is the so-called rubbing process. Since the file must be smaller than the internal space of the zipper head 1, otherwise the internal space will be expanded and the zipper fastening function will be affected, the overflow 5 cannot be completely scraped off. In particular, the file cannot correct the unevenness of the scratch 6.

[0012] In addition, due to the huge number of zipper heads produced, each batch may easily be tens of thousands or even millions of zipper heads. Traditionally, each zipper head needs to be cleaned and polished, which is a huge cost expenditure, and the overflow cannot be cleaned and polished. Therefore, how to reduce the overflow at the mold boundary mark in the internal space of the zipper head, and thus reduce the damage to the zipper caused by scratches, is a difficult problem that the relevant personnel in the field need to overcome urgently. Summary of the invention

[0013] The main purpose of the present invention is to provide a zipper head with the function of reducing damage to the zipper, wherein a pair of parallel longitudinal grooves are provided on an upper inner surface and / or a lower inner surface, and each of the grooves at least accommodates a part of a combined mold boundary mark formed during the production process of the zipper head, so as to reduce the scratch damage to a zipper caused by overflow at the combined mold boundary mark, and to extend the service life of the mold and the zipper.

[0014] To achieve the aforementioned objectives, the technical means adopted by the present invention provide a zipper head with the function of reducing damage to the zipper, which includes an upper cover plate and a lower cover plate arranged opposite to each other, a connecting body connected to the upper cover plate and the lower cover plate, and the two side edges of the lower cover plate each have a side wall; the upper cover plate has an upper inner surface and an upper outer surface, and the lower cover plate has a lower inner surface and a lower outer surface; an internal channel is formed between the upper inner surface, the lower inner surface, the side wall and the connecting body; it is characterized in that a pair of parallel longitudinal grooves are provided on the upper inner surface and / or the lower inner surface, and each of the grooves at least accommodates a part of a combined mold boundary mark formed during the production process of the zipper head, so as to reduce the scratch damage to a zipper caused by overflow at the combined mold boundary mark.

[0015] In one embodiment, the zipper slider further includes at least one pull handle disposed on the upper outer surface and / or the lower outer surface.

[0016] In one embodiment, the upper inner surface and the lower inner surface each have a combined mold boundary mark, and the combined mold boundary mark includes a pair of longitudinal mold boundary marks, a front end transverse mold boundary mark connected to each of the longitudinal mold boundary marks, and a rear end transverse mold boundary mark connected to each of the longitudinal mold boundary marks.

[0017] In one embodiment, the upper inner surface and / or the lower inner surface of the front end of the zipper head each has a pair of upper stop holes to accommodate a pair of correspondingly arranged upper stop blocks of the zipper, and a portion of each of the grooves is located in the corresponding upper stop hole.

[0018] In one embodiment, the plurality of grooves have different widths and depths.

[0019] In one embodiment, the zipper head is selected from a pinless zipper head, a spring pin zipper head, a snap pin zipper head, a spring pin zipper head of an invisible zipper, and a pinless zipper head of an invisible zipper.

[0020] In one embodiment, the zipper pull is made of alloy metal or plastic.

[0021] In one embodiment, the intersections of the front end transverse mold boundary mark and the rear end transverse mold boundary mark with each of the longitudinal mold boundary marks are shaped with an oblique angle or an arc angle.

[0022] Another object of the present invention is to provide a zipper, wherein an upper inner surface and / or a lower inner surface of a zipper head for opening and closing is provided with a pair of parallel longitudinal grooves, and each of the grooves at least accommodates a combined mold boundary mark formed during the production process of the zipper head, so as to reduce the scratch damage to the zipper caused by overflow at the combined mold boundary mark and extend the service life of the zipper.

[0023] To achieve the aforementioned object, the technical means adopted by the present invention provides a zipper, which uses the zipper head as described above as an opening and closing element.

[0024] Another object of the present invention is to provide a daily necessity with opening and closing functions, which is provided with the aforementioned zipper.

[0025] In order to achieve the aforementioned purpose, the technical means adopted by the present invention provides a daily necessity with an opening and closing function, which is provided with the aforementioned zipper.

[0026] In one embodiment, the daily item with the opening and closing function is a daily item selected from the group consisting of clothing, a carrying device, and camping equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To further disclose the specific technical content of the present invention, please first refer to the accompanying drawings, in which:

[0028] Figure 1 It is a three-dimensional diagram of an existing zipper head;

[0029] Figure 2 for Figure 1 A plan view of the lower inner surface of the zipper slider to show the relative positions of the mold line mark and the fastening elements;

[0030] Figure 3 for Figure 1 A plan view of the upper inner surface of the zipper slider to show the positions of the mold line marks, flash and scratches;

[0031] Figure 4aA plan view of the first embodiment of the zipper head of the present invention, showing that the inner surface has a pair of grooves, so that a portion of the overflow and scratches in the mold boundary mark are located in the corresponding grooves;

[0032] Figure 4b Another plan view of the first embodiment of the zipper head of the present invention, showing the positions of the combined mold boundary line marks, overflow and scratch marks on an upper inner surface;

[0033] Figure 4c for Figure 4a a cross-sectional view taken along line AA;

[0034] Figure 5a A plan view of a second embodiment of the zipper head of the present invention is shown, showing that the inner surface has a pair of grooves, so that a portion of the longitudinal mold boundary marks and a portion of the rear end transverse mold boundary marks are located in the corresponding grooves;

[0035] Figure 5b Another plan view of the second embodiment of the zipper head of the present invention, showing that an upper inner surface has a pair of grooves, so that a portion of the longitudinal mold boundary marks and a portion of the rear end transverse mold boundary marks of the mold boundary marks are located in the corresponding grooves;

[0036] Figure 5c and Figure 5d The two plane views of the upper inner surface and the lower inner surface of the first embodiment of the zipper head of the present invention respectively show the shape of the intersection of the longitudinal mold boundary mark and the rear end transverse mold boundary mark having an oblique angle or an arc angle;

[0037] Figure 6a A plan view of a third embodiment of the zipper head of the present invention, showing that the inner surface has a pair of grooves, and a portion of the front end transverse mold boundary mark, the longitudinal mold boundary mark and a portion of the rear end transverse mold boundary mark of the mold boundary mark are located in the corresponding grooves;

[0038] Figure 6b Another plan view of the third embodiment of the zipper slider, showing that an upper inner surface has a pair of grooves, so that a portion of the front end transverse mold boundary mark, the longitudinal mold boundary mark and a portion of the rear end transverse mold boundary mark of the mold boundary mark are located in the corresponding grooves;

[0039] Figure 7 A plan view of a fourth embodiment of the zipper head of the present invention, showing that an upper inner surface and a lower inner surface each have a pair of grooves, so that a portion of the front end transverse mold boundary mark, the longitudinal mold boundary mark and a portion of the rear end transverse mold boundary mark of the mold boundary mark are located in the corresponding grooves;

[0040] Figure 8a A perspective view of a fifth embodiment of a zipper slider of the present invention; and

[0041] Figure 8b This is a plan view of the fifth embodiment of the zipper head of the present invention, showing that the inner surface has a pair of grooves, so that a portion of the front end transverse mold boundary mark, the longitudinal mold boundary mark and a portion of the rear end transverse mold boundary mark of the mold boundary mark are located in the corresponding grooves. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0043] Most of the components of the zipper head of the present invention are Figure 1 The zipper head shown is completely the same, that is, the zipper head 1 of the present invention comprises an upper cover plate 11 and a lower cover plate 12 arranged opposite to each other, the upper cover plate 11 has an upper outer surface 111 and an upper inner surface 112, and the lower cover plate 12 has a lower outer surface 121 and a lower inner surface 122. A connecting body 13 connects the upper cover plate 11 and the lower cover plate 12 at the front end of the zipper head 1, and the two side edges of the upper cover plate 11 and the lower cover plate 12 each have a side wall 14, and a pair of extension bodies 17 are respectively combined with the corresponding side wall 14 of the lower cover plate 12 and the lower inner surface 122. A pull handle 18 is arranged on the upper outer surface 111, and the pull handle 18 can be arranged on the upper outer surface 111 and / or the lower outer surface 121 as needed in actual production.

[0044] like Figures 4a to 4c , which respectively show a lower inner surface 122, a plan view of an upper inner surface 112 and a cross-sectional view of the lower inner surface 122 of the first embodiment of the zipper slider of the present invention. Figure 4a and Figure 4b The zipper head 1 is disclosed to have a pair of parallel grooves 8 only on the lower inner surface 122. Of course, according to actual needs, a pair of parallel grooves 8 can also be provided only on the upper inner surface 112. The upper cover plate 11 and the lower cover plate 12 each have a side wall 14 on both sides, and the side wall 14 of the lower cover plate 12 is higher than the side wall 14 of the upper cover plate 11. The position of the pair of grooves 8 each corresponds to a longitudinal mold boundary mark a, and each of the grooves 8 accommodates a portion of the corresponding longitudinal mold boundary mark a and a portion of the rear end transverse mold boundary mark c.

[0045] like Figure 4c As shown, it shows that the lower cover plate 12 is along Figure 4a The cross-sectional view taken along the line AA discloses in detail the approximate positions of the pair of grooves 8 and the shapes of the two sides each having a bevel edge.

[0046] In addition, each of the side walls 14 has an extension 17 at the lower inner side, and the lower inner surface 122 has a ridge 15 for stabilizing the opening and closing function of a loop-type continuous fastening element zipper, such as a nylon zipper or a woven zipper in the zipper head 1, and the shape, width and height of each ridge 15 depend on the loop-type continuous fastening element 4 (shown in FIG. Figure 2 ) shape, so there is no need to specifically limit it.

[0047] In addition, although the plurality of extensions 17 and the ridges 15 both protrude from the lower inner surface 122, the distance between the extensions 17 and the ridges 15 is very wide, so that the fixing lines 41 of the plurality of fastening elements 4 can easily touch the overflow 5 of each longitudinal mold boundary mark a and be damaged. The pair of grooves 8 of this embodiment can accommodate the overflow 5 and scratches 6 at the corresponding longitudinal mold boundary mark a and the rear end transverse mold boundary mark c, so that the height of the overflow 5 and scratches 6 in at least a part of the grooves 8 can be lower than the inner surfaces 112, 122, thereby reducing the damage to the zipper.

[0048] In fact, the front end of each longitudinal mold boundary mark a gradually descends from the upper inner surface 112 into the corresponding inclined edge of the groove 8, and finally descends to the bottom of the groove 8. The range of the groove 8 starts from below the lower inner surface 122, including the edge inclined surface of the groove 8, and has no obvious boundary. The position where each longitudinal mold boundary mark a enters the corresponding range of the groove 8 can be set as needed. The cross-sectional shape, depth and width of each groove 8 do not need to be particularly limited, and each groove 8 can even have different widths and depths, based on the size and requirements of the zipper, but the depth of each groove 8 is preferably above 0.05 mm.

[0049] like Figure 5a and Figure 5b , which shows a second embodiment of the zipper head of the present invention, which differs from the first embodiment in that, in addition to the pair of parallel grooves 8 on the lower inner surface 122, a pair of parallel grooves 8 are also provided on the upper inner surface 112. The upper cover plate 11 and the lower cover plate 12 each have a side wall 14 on both sides, wherein the height of each side wall 14 of the lower cover plate 12 is higher than that of each side wall 14 of the upper cover plate 11, and each side wall 14 of the lower cover plate 12 has an extension 17 on the inner side.

[0050] The position of the pair of grooves 8 corresponds to each of the longitudinal mold boundary marks a, and each of the grooves 8 accommodates the entire longitudinal mold boundary mark a, a portion of the front transverse mold boundary mark b, and a portion of the rear transverse mold boundary mark c. The upper inner surface 112 and the lower inner surface 122 each have a ridge 15. The ridge 15 and the plurality of extensions 17 are used to stabilize the opening and closing function of the loop-type continuous fastening element zipper, such as a nylon zipper or a woven zipper in the zipper head 1. The shape, width, and height of each ridge 15 depend on the shape of the plurality of loop-type continuous fastening elements 4, and therefore do not need to be specifically limited.

[0051] In addition, although the plurality of extensions 17 and the ridges 15 are both higher than the lower inner surface 122, the plurality of extensions 17 and the ridges 15 are spaced very wide from each other, so that the fixing lines 41 of the plurality of fastening elements 4 can easily touch the overflow 5 at the longitudinal mold boundary marks a and be damaged. The pair of grooves 8 of the present embodiment can accommodate the overflow 5 and scratches 6 at the corresponding longitudinal mold boundary marks a and the rear end transverse mold boundary marks c, thereby reducing damage to the zipper.

[0052] In addition, when die-casting a zipper head, in order to reduce the damage caused by the collision of the sliding blocks in the zipper head mold when they fit together, there is a problem of excessive overflow at the intersection of the longitudinal mold boundary mark a and the rear end horizontal mold boundary mark c. To solve the above problem, please refer to Figure 5c and Figure 5d The ends of each sliding block can be designed to have a beveled edge or an arc edge, so that the intersection of the longitudinal mold boundary mark a and the rear end transverse mold boundary mark c has a corresponding bevel angle or arc angle shape, but the aforementioned bevel angle or arc angle shape is not limited to this, as long as it can solve the problem of excessive overflow, it can be used.

[0053] The front end of each longitudinal mold boundary mark a of the zipper head 1 gradually descends from the upper inner surface 112 and the lower inner surface 122 into the corresponding inclined edge of the groove 8, and finally descends to the bottom of the groove. The range of the groove 8 starts from below the upper inner surface 112 and the lower inner surface 122, including the edge inclined surface of the groove 8. The range position of each longitudinal mold boundary mark a entering the corresponding groove 8 can be set as needed. There is no need to specifically limit the cross-sectional shape, depth and width of each groove 8, and even each groove 8 can have different widths and depths, based on the size and requirements of the zipper, but the depth of each groove 8 is preferably above 0.05mm.

[0054] like Figure 6a and 6b, which shows the third embodiment of the zipper head of the present invention. The difference between the third embodiment and the first embodiment is that the zipper head 1 of the present embodiment discloses that the upper inner surface 112 and the lower inner surface 122 each have a pair of parallel grooves 8. The zipper head 1 of the present embodiment is used for a zipper with an upper stop plate, so each has a pair of upper stop holes 16 to accommodate the upper stop plate (not shown in the figure). Each of the grooves 8 of the present embodiment accommodates the entirety of the corresponding longitudinal mold boundary mark a, a portion of the front end transverse mold boundary mark b, and a portion of the rear end transverse mold boundary mark c.

[0055] Part of each groove 8 is located at the upper stop hole 16, and if necessary, the upper stop hole 16 can be enlarged so that a part of each front end transverse mold boundary mark b and each longitudinal mold boundary mark a are located at the upper stop hole 16. The upper cover plate 11 and the lower cover plate 12 each have a side wall 14 on both sides. The upper inner surface 112 and the lower inner surface 122 each have a ridge 15, and the pair of side walls 14 of the lower cover plate 12 each have an extension 17. The ridge 15 and the plurality of extensions 17 are used to stabilize the opening and closing function of the loop-type continuous fastening element zipper in the zipper head 1. The shape, width and height of each ridge 15 depend on the shape of the plurality of loop-type continuous fastening elements 4, and therefore do not need to be specifically limited.

[0056] In addition, although the plurality of extensions 17 and the ridges 15 are both higher than the lower inner surface 122, the plurality of extensions 17 and the ridges 15 are spaced very wide from each other, so that the fixing lines 41 of the plurality of fastening elements 4 can easily touch the overflow 5 at the longitudinal mold boundary marks a and be damaged. The pair of grooves 8 of the present embodiment can accommodate the overflow 5 and scratches 6 at the corresponding longitudinal mold boundary marks a and the rear end transverse mold boundary marks c, thereby reducing damage to the zipper.

[0057] The range of the groove 8 starts from below the upper inner surface 112 and the lower inner surface 122, including the edge bevel of the groove 8. In this embodiment, the entirety of each longitudinal mold boundary mark a, a portion of the front end transverse mold boundary mark b, and a portion of the rear end transverse mold boundary mark c are located at the corresponding range position of the groove 8. The cross-sectional shape, depth, and width of each groove 8 do not need to be particularly limited, and each groove 8 can even have different widths and depths, depending on the size and requirements of the zipper, but the depth of each groove 8 is preferably above 0.05 mm.

[0058] like Figure 7, which shows the fourth embodiment of the zipper head of the present invention. The difference between the fourth embodiment and the first embodiment is that the zipper head 1 of the present embodiment is used for independent tooth-type fastening element zippers, such as metal zippers and plastic steel zippers. Since the upper and lower surfaces of each independent tooth-type fastening element are basically flat, there is no need to specially set the ridges 15 on the upper inner surface 112 and the lower inner surface 122, and the upper cover plate 11 and the lower cover plate 12 are respectively provided with a side wall 14 on both sides, so the structures of the upper inner surface 112 and the lower inner surface 122 are substantially the same. Figure 7 represents the same upper inner surface 112 and the lower inner surface 122. Therefore, the upper inner surface 112 of the zipper head 1 has a pair of parallel grooves 8, each of which accommodates the entire longitudinal mold boundary mark a, a portion of the front end transverse mold boundary mark b, and a portion of the rear end transverse mold boundary mark c.

[0059] The range of the groove 8 is from below the upper inner surface 112 and the lower inner surface 122, including the edge bevel of the groove 8. In this embodiment, the depth and width of the groove 8 do not need to be particularly limited, and each groove 8 can also have different cross-sectional shapes, widths and depths, depending on the size and requirements of the zipper, but the depth of each groove 8 is preferably above 0.05 mm.

[0060] like Figure 8a , which shows a fifth embodiment of the zipper head of the present invention, for example, a three-dimensional view of a zipper head 1 for an invisible zipper, wherein the two sides of a lower cover plate 12 of the zipper head 1 each have a side wall 14, and a pair of wing-shaped cover plates 141 extend inward from the top of each side wall 14; a connecting body 13 is arranged at the front end of the zipper head 1, and a conical cover plate 131 is arranged above the connecting body 13; the pair of wing-shaped cover plates 141 and the conical cover plate 131 together form a combined upper cover plate 11a having a similar function to an upper cover plate of an existing zipper head, and a Y-shaped gap 19 is formed between the pair of wing-shaped cover plates 141 and the conical cover plate 131, so that the pair of supporting cloth tapes can extend out of the zipper head 1 from the Y-shaped gap 19.

[0061] The combined upper cover plate 11a has a combined upper inner surface 113, the lower cover plate 12 has a lower inner surface 122, and each of the side walls 14 has an extension 17 on the inner side, and the combined upper inner surface 113 and the lower inner surface 122 each have a convex ridge 15. The plurality of extensions 17 and the convex ridge 15 are used to stabilize the opening and closing stability of the plurality of fastening elements 4 in the zipper head 1.

[0062] like Figure 8b, which shows a plan view of the lower inner surface 122 of the zipper head 1, the lower inner surface 122 has a pair of parallel grooves 8. Each of the grooves 8 accommodates a corresponding longitudinal mold boundary mark a, a portion of the front end transverse mold boundary mark b, and a portion of the rear end transverse mold boundary mark c.

[0063] The range of the groove 8 is from below the lower inner surface 122, including the edge bevel of the groove 8. The depth and width of the groove 8 do not need to be particularly limited, and each groove 8 can have different cross-sectional shapes, widths and depths, depending on the size and needs of the zipper, but the depth of each groove 8 is preferably greater than 0.05 mm.

[0064] Since all zippers require the zipper head 1 to open and close, the upper inner surface 1 and the lower inner surface of the zipper head should be kept as flat as possible, and even smooth to avoid damaging the components of the zipper, such as the waterproof layer of the zipper support tape surface, the sewing threads or warp and weft yarns of the multiple fastening elements, and the surfaces of independent tooth-type fastening elements, such as metal or plastic steel fastening elements. This is especially the primary problem to be avoided for precious metal zippers with bright surfaces. The multiple grooves of the present invention can not only avoid the problem of overflow or scratches on the mold boundary marks, but also save the traditional wiping and repairing process of producing zipper heads. For zipper heads with particularly strict requirements, a wiping tool that matches the shape of each groove can be used to rub and repair the combined mold boundary marks in each groove, so that the large overflow of each combined mold boundary mark can be effectively repaired, so that the overflow will not be higher than each inner surface 112, 122 and damage the zipper.

[0065] In addition, since the zipper head is used in generally including continuous loop fastening elements, continuous folding fastening elements, independent tooth-type fastening elements, etc., such as continuous loop fastening element waterproof zippers, continuous folding fastening element zippers, metal zippers or plastic steel zippers of independent tooth-type fastening elements, etc., various fastening elements have different cross-sectional shapes. In order to enable the zipper to open and close stably in the zipper head, ridges can be set at the center of each of the upper inner surface and the lower inner surface according to different cross-sectional shapes.

[0066] The zipper head is selected from a pinless zipper head, a spring pin zipper head, a snap pin zipper head, a spring pin zipper head of an invisible zipper, a pinless zipper head of an invisible zipper, etc. The material can be selected from metal or plastic, etc., but is not limited thereto.

[0067] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A zipper head with a function of reducing damage to a zipper, comprising: An upper cover plate and a lower cover plate arranged opposite to each other, a connecting body connected to the upper cover plate and the lower cover plate, and the two side edges of the lower cover plate each have a side wall; the upper cover plate has an upper inner surface and an upper outer surface, and the lower cover plate has a lower inner surface and a lower outer surface; an internal channel is formed between the upper inner surface, the lower inner surface, the side wall and the connecting body; characterized in that: A pair of parallel longitudinal grooves are provided on the upper inner surface and / or the lower inner surface, each of which accommodates at least a portion of a combined mold boundary mark formed during the production process of the zipper head to reduce scratch damage to a zipper caused by overflow at the combined mold boundary mark.

2. The zipper head with the function of reducing zipper damage according to claim 1, further comprising at least one pull handle provided on the upper outer surface and / or the lower outer surface.

3. The zipper head with the function of reducing damage to the zipper according to claim 1, wherein there is a combined mold boundary mark on each of the upper inner surface and the lower inner surface, and the combined mold boundary mark includes a pair of longitudinal mold boundary marks, a front end transverse mold boundary mark connected to each of the longitudinal mold boundary marks, and a rear end transverse mold boundary mark connected to each of the longitudinal mold boundary marks.

4. The zipper head with the function of reducing damage to the zipper according to claim 1, wherein the upper inner surface and / or the lower inner surface of the front end of the zipper head each has a pair of upper stop holes to accommodate a pair of corresponding upper stop blocks of the zipper, and a portion of each of the grooves is located in the corresponding upper stop hole. 5 . The zipper head with a function of reducing zipper damage according to claim 1 , wherein the plurality of grooves have different widths and depths.

6. The zipper head with the function of reducing damage to the zipper according to claim 1, wherein the zipper head is selected from a needleless zipper head, a spring-type needle-pin zipper head, a snap-on needle-pin zipper head, a spring-type needle-pin zipper head of an invisible zipper, and a needleless zipper head of an invisible zipper.

7. The zipper head with the function of reducing zipper damage according to claim 1, wherein the material of the zipper head is selected from alloy metal or plastic.

8. The zipper head with the function of reducing zipper damage according to claim 1, wherein the intersections of the front end transverse mold boundary mark and the rear end transverse mold boundary mark with each of the longitudinal mold boundary marks are in a shape with an oblique angle or an arc angle.

9. A zipper, which is a product made of the zipper slider according to any one of claims 1 to 8.

10. A daily necessity with an opening and closing function, provided with the zipper according to claim 9 to provide the opening and closing function.

11. The daily necessities with opening and closing functions according to claim 10, wherein the daily necessities with opening and closing functions are selected from the group consisting of clothing, carrying devices and camping equipment.

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