A resin zipper

Abstract

The present invention provides a resin zipper, which includes a zipper tape and teeth. On the outer surface of the teeth, there are a top extending in the width direction of the resin zipper and inclined portions arranged on both sides of the top in the length direction of the resin zipper. The side of the inclined portion away from the top is inclined towards the direction close to the zipper tape, and the inclination angle θ of the inclined portion is 30° ± 5°. The top protrudes away from the zipper tape relative to the inclined portion. The cross-section of the top is an arc surface, and the radius R of this arc surface is 0.32 mm ± 0.02 mm. The outer surface of the teeth has a transfer portion formed after attaching a transfer foil on the top and a non-transfer portion formed by the inclined portion. This application can eliminate the manufacturing process of the non-transfer portion generated after subsequent grinding of the transfer portion, thereby simplifying the entire manufacturing process of the resin zipper; the transfer portion extends in the width direction of the resin zipper, and the non-transfer portions are distributed on both sides of the transfer portion in the length direction of the resin zipper, which can provide multiple visual effects.

Description

Technical Field

[0001] The present invention relates to the field of zippers, and particularly to a resin zipper. Background Art

[0002] Zippers are commonly used in our daily life and are mainly applied to items such as clothing and luggage. Currently, zippers are mainly divided into three categories: resin zippers, metal zippers, and nylon zippers. Among them, the manufacturing process of resin zippers is relatively simple, and various resin zippers with different shapes can be produced only by making relevant molds. Therefore, in the entire zipper field, the shapes of resin zippers are the most variable and can meet different requirements.

[0003] With the continuous increase of people's personalized needs, it is difficult for resin zippers with variable shapes to meet people's personalized requirements for clothing, etc. Therefore, a process of reprocessing the outer surface of resin zippers facing people has emerged, so that resin zippers can obtain more variations and improve the decorative beauty of resin zippers. For example: A zipper disclosed in the specification of a Chinese invention patent application with the application number 201810884457.1 has a transfer foil printed on the upper surface (i.e., the outer surface facing people) of the teeth made of resin, and a surface (i.e., a non-transfer part) formed after removing a part of the transfer foil. Therefore, the upper surface of the teeth has a transfer foil and a non-transfer part, obtaining teeth with different visual effects, thereby improving the beauty of the resin zipper and thus improving the decoration of the resin zipper to meet people's personalized requirements for clothing, etc. However, the above zipper has the following defects:

[0004] 1. During the production process of the above zipper, it is necessary to first perform a film pasting treatment on the teeth in the zipper, and then perform physical grinding to remove a part of the transfer foil, which increases the production process of the zipper and increases the production difficulty; in addition, physical grinding is prone to deviation, and the edge of the transfer foil at the junction with the non-transfer part is easily damaged after grinding.

[0005] 2. The above zipper can only perform physical grinding on the teeth along the length direction of the zipper to form a non-transfer part, which can only increase different visual effects in the length direction of the zipper, but cannot increase different visual effects in the width direction of the zipper. Summary of the Invention

[0006] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a resin zipper that can simplify the production process while providing multiple visual effects.

[0007] To achieve the above object, the present invention provides a resin zipper, including a pair of zipper tapes and a plurality of teeth arranged on the inner edges of the zipper tapes along the length direction of the resin zipper. The outer surface of the teeth is provided with a top extending along the width direction of the resin zipper and inclined portions arranged on both sides of the top along the length direction of the resin zipper. The side of the inclined portion away from the top is inclined towards the direction close to the zipper tape, and the inclination angle θ of the inclined portion is 30° ± 5°. The top protrudes away from the zipper tape and is higher than the inclined portion. The cross-section of the top is an arc surface, and the radius R of the arc surface is 0.32 mm ± 0.02 mm. The outer surface of the teeth has a transfer portion formed by attaching a transfer foil on the top and a non-transfer portion formed by the inclined portion.

[0008] In this application, the outer surface of the zipper facing the user has a transfer portion and a non-transfer portion. The transfer portion is formed by attaching a transfer foil on the top extending along the width direction of the resin zipper. Therefore, the transfer portion in this application extends along the width direction of the resin zipper, so as to provide multiple visual effects. Moreover, the non-transfer portion is distributed on both sides of the transfer portion along the length direction of the resin zipper. The top is an outward protruding structure on the outer surface of the teeth. Therefore, the transfer portion protrudes outward from the non-transfer portion, making the overall visual effect of the teeth concentrated on the top, thereby being able to produce a more distinctive visual effect. In particular, the top is an outward protruding arc surface structure, and the radius R of the arc surface is 0.32 mm ± 0.02 mm. The inclined portion is inclined towards the direction away from the top and close to the zipper tape, and the inclination angle θ of the inclined portion is set to 30° ± 5°. Different transitions are formed between the top and the inclined portion. Therefore, during the production process of attaching the transfer foil on the outer surface of the top, the transferred film is only transferred to the top and will not be transferred to the inclined portion. Therefore, after attaching the transfer foil on the outer surface of the top through the film laminating production process in this application, a transfer portion and a non-transfer portion have been generated on the outer surface of the teeth, thus eliminating the subsequent production process of grinding the transfer portion to generate the non-transfer portion, thereby simplifying the entire production process of the resin zipper and avoiding abrasion on the edges of the transfer portion. At the same time, the transfer portion is in an arc surface shape, which can provide a more different visual effect.

[0009] Further, the teeth have a body portion, a neck portion, and a head portion connected in sequence along the width direction of the resin zipper. The top penetrates through the body portion, the neck portion, and the head portion, making the visual effect of the resin zipper better.

[0010] Further, the top extends straight along the width direction of the resin zipper.

[0011] Further, along the length direction of the resin zipper, the width ratio between the transfer portion on the outer surface of the teeth and the two non-transfer portions respectively arranged on both sides of the transfer portion is 2:1:2, thereby highlighting the visual effect of the transfer portion.

[0012] As described above, the resin zipper of the present invention has the following beneficial effects:

[0013] 1. Through the protruding top and the inclined portions inclined on both sides of the top, after the process of laminating the outer surface of the teeth, a transfer portion formed by attaching a transfer foil on the top and a non-transfer portion formed by the inclined portions are already formed on the outer surface of the teeth. Furthermore, the manufacturing process of generating a non-transfer portion after grinding the transfer portion is omitted, thereby simplifying the entire manufacturing process of the zipper and avoiding abrasion on the edges of the transfer portion.

[0014] 2. The transfer portion is formed by attaching a transfer foil on the top extending along the width direction of the resin zipper. The top extends along the width direction of the resin zipper, so that the transfer portion also extends along the width direction of the resin zipper, thereby being able to provide multiple visual effects.

[0015] 3. The non-transfer portions are distributed on both sides of the transfer portion along the length direction of the resin zipper. The top is a protruding structure on the outer surface of the teeth, so the transfer portion protrudes outward from the non-transfer portions, making the overall visual effect of the teeth concentrated on the top, thereby being able to produce a more distinctive visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural view of the resin zipper in the present application, and this figure is a front view.

[0017] Figure 2 and Figure 3 It is a schematic structural view of the zipper tape and the teeth of the resin zipper in the first embodiment of the present application from different perspectives.

[0018] Figure 4 is Figure 2 the front view.

[0019] Figure 5 is Figure 2 the side view.

[0020] Figure 6 is Figure 5 the enlarged view of circle A.

[0021] Figure 7 It is a side view of the zipper tape and the teeth of the resin zipper in the second embodiment of the present application.

[0022] Figure 8 is Figure 7 the enlarged view of circle B.

[0023] Figure 9 It is a schematic structural view of the transfer device in the present application.

[0024] Description of Element Numbers

[0025] 1 Zipper tape

[0026] 2 Chain teeth

[0027] 21 Top

[0028] 22 Tapered part

[0029] 23 Body part

[0030] 231 Upper body part

[0031] 232 Lower body part

[0032] 24 Neck

[0033] 241 Upper neck

[0034] 242 Lower neck

[0035] 25 Head

[0036] 251 Upper head

[0037] 252 Lower head

[0038] 26 Upper half tooth part

[0039] 27 Lower half tooth part

[0040] 3 Transfer part

[0041] 4 Non-transfer part

[0042] 5 Transfer device

[0043] 51 Pressing roller

[0044] 52 Transfer roller

[0045] 53 Output roller

[0046] 54 Recovery roller

[0047] 55 Guide roller

[0048] 6 Transfer film Detailed implementation mode

[0049] The following specific embodiments illustrate the implementation modes of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0050] It should be noted that the structures, proportions, sizes, etc. depicted in the accompanying drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they do not have any substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope in which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope in which the present invention can be implemented.

[0051] This application relates to the field of zippers, and specifically provides a resin zipper. For the convenience of narration, the definitions of each direction in the following embodiments are as follows: The length direction of the resin zipper is defined as the front-back direction, the width direction of the resin zipper is defined as the left-right direction, and the thickness direction of the resin zipper is defined as the up-down direction. Or, Figure 1 In the views shown, the upper side and the lower side of the paper surface are the front direction and the back direction respectively, the left side and the right side of the paper surface are the left direction and the right direction respectively, and the front side and the back side of the paper surface are the up direction and the down direction respectively.

[0052] The resin zipper involved in this application is installed on items such as clothing and luggage. After the resin zipper is installed on the item, the surface of the resin zipper facing the person is defined as the upper surface, and the surface of the resin zipper facing away from the person after being installed on the item is defined as the lower surface. Therefore, the upper surface of the resin zipper is the prominent surface and can be seen by people, and the upper surface of the resin zipper is also the outer surface of the resin zipper.

[0053] As Figure 1 shown, the resin zipper involved in this application includes a pair of zipper tapes 1, a pair of tooth chain tapes, and a slider (not shown in the figure); the pair of zipper tapes 1 includes two zipper tapes 1 arranged side by side left and right, and the zipper tapes 1 are usually cloth tapes; the two tooth chain tapes in the pair of tooth chain tapes are respectively arranged on the inner edges of the respective zipper tapes 1, and each tooth chain tape includes a plurality of chain teeth 2 fixedly arranged on the inner edge of the zipper tape 1 and spaced apart front and back along the length direction of the resin zipper. The chain teeth 2 are made of resin; the slider is movably installed on the pair of tooth chain tapes, and pulling the slider forward can cause the chain teeth 2 on the pair of tooth chain tapes to engage, and pulling the slider backward can cause the chain teeth 2 on the pair of tooth chain tapes to separate.

[0054] As Figure 2 and Figure 3As shown, each tooth 2 has an upper half-tooth portion 26 disposed on the upper surface side of the zipper tape 1 and a lower half-tooth portion 27 disposed on the lower surface side of the zipper tape 1, and the upper half-tooth portion 26 and the lower half-tooth portion 27 are integrally formed. For the upper half-tooth portion 26: as Figure 2 shown, the upper half-tooth portion 26 has an upper body portion 231, an upper neck portion 241, and an upper head portion 251 that are sequentially connected along the width direction of the zipper. The lower surface of the upper body portion 231 is in contact with the upper surface of the zipper tape 1, and the upper neck portion 241 crosses the inner edge of the zipper tape 1. For the lower half-tooth portion 27: as Figure 3 shown, the lower half-tooth portion 27 has a lower body portion 232, a lower neck portion 242, and a lower head portion 252 that are sequentially connected along the width direction of the zipper. The upper surface of the lower body portion 232 is in contact with the lower surface of the zipper tape 1, and the lower neck portion 242 crosses the inner edge of the zipper tape 1. In the above upper half-tooth portion 26 and lower half-tooth portion 27, the upper body portion 231 and the lower body portion 232 together constitute the body portion 23 of the tooth 2, and the body portion 23 of the tooth 2 is used to fixedly mount the tooth 2 on the inner edge of the zipper tape 1; the upper neck portion 241 and the lower neck portion 242 together constitute the neck portion 24 of the tooth 2, and the neck portion 24 extends from the body portion 23 along the width direction of the resin zipper; the upper head portion 251 and the lower head portion 252 together constitute the head portion 25 of the tooth 2, and the head portion 25 extends from the neck portion 24 along the width direction of the resin zipper. The head portion 25 and the neck portion 24 of the tooth 2 are used for the engagement of the tooth 2. Therefore, as Figures 2 to 4 shown, each tooth 2 has a body portion 23, a neck portion 24, and a head portion 25 that are sequentially connected along the width direction of the resin zipper.

[0055] Furthermore, as Figure 2 and Figure 4 shown, a top portion 21 extending along the width direction of the resin zipper and inclined portions 22 disposed on the front and rear sides of the top portion 21 along the length direction of the resin zipper are provided on the outer surface of the tooth 2. As Figure 5 and Figure 6 shown, or as Figure 7 and Figure 8 shown, the side of the inclined portion 22 away from the top portion 21 is inclined towards the direction close to the zipper tape 1, that is: the inclined portion 22 located on the front side of the top portion 21 extends obliquely forward and downward, and the inclined portion 22 located on the rear side of the top portion 21 extends obliquely backward and downward; the angle between the inclined portion 22 and the horizontal plane is the inclination angle θ of the inclined portion 22. In particular, in this application, the inclination angle θ of the inclined portion 22 is 30° ± 5°. In an embodiment of the resin zipper, as Figure 5 and Figure 6 shown, the top portion 21 can protrude upward away from the zipper tape 1 relative to the inclined portion 22; in another embodiment of the resin zipper, as Figure 7 and Figure 8As shown, the top 21 is a horizontally extending plane. In the following embodiments, the top 21 protrudes upward away from the zipper tape 1 and above the inclined portion 22. In particular, as Figure 5 and Figure 6 shown, the cross-section of the top 21 is an arc surface, and the radius R of the arc surface is 0.32 mm ± 0.02 mm.

[0056] In addition, when manufacturing the resin zipper, a film is applied to the outer surface of the top 21. As Figure 9 shown, a transfer device 5 is used to transfer the transfer foil on the transfer film 6 to the upper surface of the top 21, so that the outer surface of the chain tooth 2 has a transferred portion 3 and a non-transferred portion 4. The transferred portion 3 is composed of the top 21 with the transfer foil attached to its outer surface, and the non-transferred portion 4 is composed of the inclined portions 22 located on the front and rear sides of the top 21. Therefore, in the resin zipper involved in the present application, the outer surface of the resin zipper facing the user has a transferred portion 3 and a non-transferred portion 4. The extending direction of the transferred portion 3 is the same as the extending direction of the top 21, both extending along the width direction of the resin zipper, and the transferred portion 3 extends continuously in the left-right direction. The transferred portion 3 and the non-transferred portion 4 are arranged along the length direction of the zipper. One transferred portion 3 is provided between two non-transferred portions 4 arranged front and rear, so as to be able to provide multiple visual effects. Furthermore, the non-transferred portion 4 is distributed along the length direction of the resin zipper on the front and rear sides of the transferred portion 3, so that the overall visual effect of the chain tooth 2 is concentrated on the top 21, thereby being able to produce a distinctive visual effect. In particular, the top 21 is an outwardly protruding structure on the outer surface of the chain tooth 2 that protrudes upward from the inclined portion 22, so that the transferred portion 3 also protrudes upward from the non-transferred portion 4, which can further concentrate the overall visual effect of the chain tooth 2 on the top 21, thereby producing a more distinctive visual effect. At the same time, the top 21 is an outwardly protruding arc surface structure, and the radius R of the arc surface is 0.32 mm ± 0.02 mm. The inclined portion 22 is inclined in a direction away from the top 21 and towards the zipper tape 1, and the inclination angle θ of the inclined portion 22 is set to 30° ± 5°. Different transitions are formed between the top 21 and the inclined portion 22. Therefore, during the process of attaching the transfer foil to the outer surface of the top 21, the transferred transfer foil is only transferred to the top 21 and will not be transferred to the inclined portion 22. Therefore, after attaching the transfer foil to the outer surface of the top 21 through the film application manufacturing process in the present application, the transferred portion 3 and the non-transferred portion 4 have already been generated on the outer surface of the chain tooth 2. While ensuring the generation of multiple visual effects, it is also possible to eliminate the subsequent manufacturing process of generating the non-transferred portion 4 after grinding the transferred portion 3, thereby simplifying the entire manufacturing process of the resin zipper and avoiding abrasion of the edges of the transferred portion 3; and the transferred portion 3 is in the shape of an arc surface, which can provide a more different visual effect.

[0057] Preferably, as Figure 4As shown, the top 21 penetrates through the body part 23, the neck part 24, and the head part 25. Or rather, the top 21 spans across the body part 23, the neck part 24, and the head part 25 of the teeth 2 from left to right in the width direction of the resin zipper. That is, the top 21 spans across the upper body part 231, the upper neck part 241, and the upper head part 251 of the upper half teeth part 26 of the teeth 2 from left to right, and the top 21 extends straight along the width direction of the resin zipper, making the visual effect of the resin zipper better. As Figure 5 or Figure 7 As shown, in the length direction of the resin zipper, the width L1 of the transfer part 3 is 0.45 to 0.55 times, preferably 0.5 times, the width L2 of the non-transfer part 4. Therefore, the width ratio L2:L1:L2 between the transfer part 3 and the two non-transfer parts 4 respectively arranged on both sides of the transfer part 3 on the outer surface of the teeth 2 is preferably 2:1:2. The width L2 of the non-transfer part 4 mainly refers to the width of the inclined part 22 on the upper surface of the body part 23 in the length direction of the zipper, and the width L1 of the transfer part 3 on the upper surfaces of the body part 23, the neck part 24, and the head part 25 is equal and is the same value. In this embodiment, the width L1 of the transfer part 3 is 0.3 mm, and the width L2 of the non-transfer part 4 is 0.63 mm. During the use of the nylon zipper, its upper half teeth part 26 is usually on the outside. For example, on clothing, by setting the ratio of the width L1 of the transfer part 3 to the width L2 of the non-transfer part 4 to 2:1:2, the transfer part 3 can obtain a more prominent visual effect, highlighting the visual effect of the transfer part 3. Therefore, when consumers observe, they can first observe the transfer part 3 and then observe the non-transfer part 4, thereby enhancing the visual effect of the transfer part 3.

[0058] Furthermore, the preferred structure of the transfer device 5 for transferring the transfer foil on the transfer film 6 to the top 21 to form the transfer part 3 is: as Figure 9 shown, the transfer device 5 includes a pressing roller 51 and a conveying roller 52 that are relatively arranged up and down in the thickness direction of the resin zipper, an output roller 53 for outputting the transfer film 6 with the transfer foil before transfer, a recovery roller 54 for recovering the transfer film 6 after transfer, and a guide roller 55 arranged on the moving path of the transfer film 6. The conveying roller 52 conveys the resin zipper in the length direction of the resin zipper. The transfer film 6 is led out from the output roller 53, and the transfer film 6 passes through the guide roller 55 and moves towards the recovery roller 54. When the teeth 2 on the resin zipper pass between the pressing roller 51 and the conveying roller 52, the pressing roller 51 presses the transfer film 6 before transfer against the upper surface of the teeth 2 before transfer. A heater is also arranged inside the pressing roller 51, so as to thermally transfer the transfer foil on the transfer film 6 to the upper surface of the top 21 of the teeth 2.

[0059] In summary, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0060] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A resin zipper, comprising a pair of zipper tapes (1) and a plurality of teeth (2) arranged along the inner edge of the zipper tapes (1) in the length direction of the resin zipper, characterized in that: On the outer surface of the chain tooth (2), there is a top portion (21) extending along the width direction of the resin zipper, and inclined portions (22) arranged on both sides of the top portion (21) along the length direction of the resin zipper. The side of the inclined portion (22) away from the top portion (21) is inclined towards the direction close to the zipper tape (1), and the inclination angle θ of the inclined portion (22) is 30° ± 5°. The top portion (21) protrudes from the inclined portion (22) towards the direction away from the zipper tape (1). The cross-section of the top portion (21) is an arc surface, and the radius R of this arc surface is 0.32 mm ± 0.02 mm. The outer surface of the chain tooth (2) has a transfer portion (3) formed after attaching a transfer foil on the top portion (21), and a non-transfer portion (4) formed by the inclined portion (22). The radius R of the arc surface of the top portion (21) and the inclination angle θ of the inclined portion (22) form different transitions between the top portion (21) and the inclined portion (22), and during the production process of attaching the transfer foil on the outer surface of the top portion (21), the transferred transfer foil is only transferred onto the top portion (21), but not onto the inclined portion (22). In the length direction of the resin zipper, the width (L1) of the transfer portion (3) is 0.45 times to 0.55 times the width (L2) of the non-transfer portion (4).

2. The resin zipper according to claim 1, characterized in that: The chain tooth (2) has a body portion (23), a neck portion (24), and a head portion (25) connected in sequence along the width direction of the resin zipper, and the top portion (21) penetrates through the body portion (23), the neck portion (24), and the head portion (25).

3. The resin zipper according to claim 1 or 2, characterized in that: The top portion (21) extends straight along the width direction of the resin zipper.

4. The resin zipper according to claim 1, characterized in that: In the length direction of the resin zipper, the width ratio between the transfer portion (3) and the two non-transfer portions (4) respectively arranged on both sides of the transfer portion (3) on the outer surface of the chain tooth (2) is 2:1:2.

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