A type of directional deformation quick-release zipper

Abstract

This utility model discloses a directional deformation quick-release zipper, relating to the field of zipper structure technology. Specifically, a limiting top stop is provided at the top of the zipper teeth. The first top stop has a deformation hole in its center, and a directional groove recessed into the deformation hole is formed on its side edge adjacent to the second top stop. The second top stop has two non-sharp protrusions on its side edge adjacent to the first top stop, namely a pressing part and a limiting part, forming an adapter groove between them. The pressing part and the directional groove are positioned opposite each other. The zipper pull's closing channel includes a wide part and a narrow part. When the pressing part abuts against the directional groove, the sum of the widths of the first and second top stops is greater than the narrow part. After the pressing part presses against the directional groove, the first top stop elastically deforms inward at the directional groove, making the sum of the widths of the first and second top stops less than or equal to the narrow part. The directional groove ensures consistent stress distribution during compression, making deformation small and controllable, reducing plastic fatigue. The non-sharp protrusions avoid the risk of scratches.

Description

Technical Field

[0001] This utility model relates to the field of zipper structure technology, specifically to a quick-release zipper with directional deformation. Background Technology

[0002] Quick-release zipper technology is a solution that achieves rapid separation and installation through a special structural design. Its core features include an asymmetrical length design of the zipper straps on both sides of the zipper pull, and a deformable top stop structure at the top of the zipper. When the zipper pull is pulled to the top, the top stop structure blocks it, and the zipper performs its normal closing function. With continued upward pulling, the top stop structure deforms under the action of the zipper pull, forcing the zipper pull past the deformed area. At this point, the zipper pull is only connected to one side of the zipper strap, and the portion of the zipper below the zipper pull is unrestrained, allowing the user to easily and quickly separate the zipper straps to both sides for rapid disassembly.

[0003] For example, a quick-release zipper provided in patent document CN105768392B employs the above features. It specifically points out that the top stop structure comprises two parts, fixed to the chain straps on both sides respectively; one part of the top stop has a deformable through-hole, and the other part includes a protruding pressing part and a protruding sharp corner, with a groove between the pressing part and the sharp corner; when the zipper head is pulled upwards with considerable force, the pressing part applies pressure to the through-hole, causing it to deform; at this time, the outer contour of the through-hole partially contracts and partially extends outwards, adapting to the groove. The deformed top stop structure cannot limit the upward movement of the zipper head. However, this solution still has shortcomings that need optimization:

[0004] (1) In the prior art, the square opening top stop is compressed and contracts at the top when subjected to force, while the bottom expands outward until it matches the groove structure. This deformation process is relatively large, which easily leads to the concentration of material stress in local areas. After repeated use, the deformation area suffers plastic fatigue due to repeated deformation, and the elasticity gradually weakens, making it difficult to restore the initial shape. This weakens the limiting function of the top stop structure and significantly shortens the service life of the zipper.

[0005] (2) The contact point between the protruding extrusion part and the outer contour of the opening is uncertain and is prone to drift, which leads to local stress concentration, aggravated wear, and reduced durability and service life of the structure. At the same time, it also makes it difficult to predict and control the upward pulling force of the user, affecting the user experience.

[0006] (3) When the teeth of the zipper are not fully engaged, the sharp corners will be exposed, and their sharpness can easily cause injury to the user, such as cutting the skin.

[0007] Therefore, there is an urgent need to provide a quick-release zipper with directional deformation to solve the above-mentioned technical problems. Summary of the Invention

[0008] To address the problems in related technologies, this utility model proposes a directional deformation quick-release zipper. By optimizing the structure, it solves the problems of easy fatigue damage to the upper stop structure, unstable operating force, and easy scratching of exposed teeth.

[0009] This utility model is implemented as follows:

[0010] A directional deformation quick-release zipper includes a pair of zipper tapes, with two rows of chain teeth and two upper stop blocks arranged opposite each other along the zipper tapes, and an anti-detachment upper stop provided on one side of the zipper tape; it also includes a zipper pull and a lower stop connector; the upper stop blocks include a first upper stop and a second upper stop, respectively disposed at the top of the two rows of chain teeth; the anti-detachment upper stop is disposed at the top of one side of the upper stop block; the zipper pull includes an upper wing, a lower wing, and a connecting post connecting the two; both the upper and lower wing have side wings, and a closing channel is formed between the side wings and the connecting post; the anti-detachment upper stop is used to prevent the zipper pull from detaching from the zipper.

[0011] The first upper stop has a deformation hole in the middle, and a directional groove that is recessed into the deformation hole is opened on one side edge adjacent to the second upper stop; the second upper stop has two non-sharp protrusions on one side edge adjacent to the first upper stop, namely a pressing part and a limiting part, and an adapter groove is formed between the pressing part and the limiting part, with the pressing part and the directional groove being opposite each other; the non-sharp protrusions here can be smooth, flat lines or obtuse angles.

[0012] The chain channel includes a wide portion and a narrow portion arranged vertically; when the extrusion part abuts against the orientation groove, the sum of the widths of the first upper stop and the second upper stop is greater than the narrow portion, and the first upper stop mates with the adapter groove on the side adjacent to the orientation groove; after the extrusion part extrudes into the orientation groove, the first upper stop elastically deforms inward at the orientation groove; the sum of the widths of the first upper stop and the second upper stop is less than or equal to the narrow portion.

[0013] It should be noted that the directional terms such as "top" and "vertical direction" mentioned above describe the relative positions of the zipper when it is in a vertical position. This is intended to clarify the relative positional relationships between the components and does not constitute a restriction on absolute spatial direction. When the zipper is laid flat or at any other angle, the relative positional relationships of the components remain unchanged; only their absolute positions change. For ease of description, this instruction uses the vertical orientation of the zipper as an example; this description should not be construed as a restriction on the actual usage posture.

[0014] The teeth on the two rows of chain teeth can be engaged sequentially through the wide and narrow sections of the chain channel.

[0015] When the slider reaches the upper limit stop, the first upper stop engages with the extrusion part through the directional groove and the portions on both sides of the directional groove. Similarly, the second upper stop engages with the first upper stop through the adapter groove and the extrusion and limiting portions on both sides. After the slider passes the upper limit stop, the first and second upper stops separate, and the first upper stop returns to its original state.

[0016] By incorporating directional grooves, consistency in contact points and stress distribution is ensured with each upward pull. Simultaneously, the first top stop and its deformation hole are guided to undergo controlled, minute deformation primarily inwards, preventing outward expansion. This minimal deformation effectively reduces the accumulation of plastic fatigue caused by repeated use, thereby extending the overall lifespan of the zipper. Furthermore, the non-sharp protrusions prevent the risk of scratches during user operation.

[0017] As a further optimization of the above solution, the directional groove is located in the middle of the deformation hole in the vertical direction, which can effectively reduce the stress and fatigue damage caused by extrusion deformation to the first upper stop, and make the first upper stop symmetrical and beautiful in appearance.

[0018] Furthermore, when the directional groove is not located in the center, the width of the directional groove on the first upper stop is denoted as the first length, and the lengths of the edges of the first upper stop on both sides of the deformation groove are denoted as the second length and the third length, respectively, with the second length being greater than the third length, and the sum of the first length and the third length being greater than the second length. This configuration ensures that the directional groove does not deviate excessively from the center, preventing the first upper stop from undergoing significant deformation outside the directional groove.

[0019] As a further optimization of the above solution, both the first upper stop and the deformable hole are square. Furthermore, the deformable hole is rectangular, with its long side pointing vertically, and the four corners of the rectangle are rounded.

[0020] As a further optimization of the above solution, the first upper stop and the second upper stop each form a raised extension piece on their respective sides near the zipper tape; the extension piece is fixedly connected to the zipper tape; the thickness of the extension piece is less than or equal to the interval between the upper wing and the lower wing.

[0021] By setting an extension piece, the contact area between the first top stop, the second top stop, and the zipper tape can be increased, thereby enhancing the structural connection strength between the limit top stop and the zipper tape.

[0022] As a further optimization of the above solution, the extrusion part is located on the upper or lower side of the limiting part.

[0023] The first top stop and the second top stop are respectively fixed to the left and right zipper tapes, or their positions are interchanged; the anti-detachment top stop is located at the top of the first top stop or the second top stop.

[0024] As a further optimization of the above scheme, the first upper stop is not connected to the chain teeth on the chain tooth row.

[0025] As a further optimization of the above solution, a number of continuously arranged square teeth are fixedly provided between the anti-detachment upper stop and the limiting upper stop on one side of the zipper tape.

[0026] As a further optimization of the above solution, the anti-detachment top stop is fixed on the zipper tape, and the top of the anti-detachment top stop protrudes towards the zipper tape on the same side to form a limiting hook; the width of the anti-detachment top stop at the limiting hook is recorded as the first width; the width of the connecting post and the side wing is recorded as the second width; the first width is greater than the second width.

[0027] As a further optimization of the above solution, the length from the top of the anti-detachment stop to the top of the limit stop is greater than the length of the pull head.

[0028] As a further optimization of the above scheme, the thickness of the square tooth is less than or equal to the interval between the upper and lower wing pieces, and greater than the interval between the upper and lower wing pieces on the side wing; the thickness of the square tooth is less than or equal to the distance from the connecting post to the side wing.

[0029] The beneficial effects are as follows:

[0030] This invention provides a directional deformation quick-release zipper. By setting directional grooves, it ensures consistency in contact points and stress distribution with each upward pull. Simultaneously, it guides the first top stop and its deformation hole to undergo controllable, minute deformation primarily inwards, preventing outward expansion. This minimal deformation effectively reduces the accumulation of plastic fatigue caused by repeated use, thereby extending the overall lifespan of the zipper. Furthermore, the non-sharp protrusions prevent the risk of scratches to the user during operation. Attached Figure Description

[0031] Figure 1 A schematic diagram of the structure of the directional deformation quick-release zipper (without a zipper pull) provided in Embodiment 1 of this utility model;

[0032] Figure 2 This is a schematic diagram of the upper stop structure provided in Embodiment 1 of this utility model;

[0033] Figure 3 This is a schematic diagram of the zipper puller provided in Embodiment 1 of this utility model;

[0034] Figure 4 for Figure 3 A cross-sectional diagram;

[0035] Figure 5 This is a cross-sectional schematic diagram of the upper stop and the pull head when they are in contact, as provided in Embodiment 1 of this utility model;

[0036] Figure 6 This is a schematic diagram of the structure when the upper stop and the pull head are engaged, as provided in Embodiment 2 of this utility model;

[0037] Figure 7 This is a schematic diagram of the upper stop structure provided in Embodiment 2 of this utility model;

[0038] Figure 8 This is a schematic diagram of the structure when the upper stop and the pull head are engaged, as provided in Embodiment 2 of this utility model;

[0039] Figure label:

[0040] 1. Zipper tape;

[0041] 2. Chain teeth;

[0042] 3. Lower stop connector;

[0043] 4. First top stop; 41. Deformation hole; 42. Orientation groove; 43. First length; 44. Second length; 45. Third length;

[0044] 5. Second upper stop; 51. Extrusion section; 52. Limiting section; 53. Adaptor groove;

[0045] 6. Puller head; 61. Upper wing; 62. Lower wing; 63. Connecting post; 64. Side wing; 65. Chain closing channel; 651. Narrow section;

[0046] 7. Square teeth;

[0047] 8. Anti-detachment upper stop; 81. Limit hook; 82. First width;

[0048] 9. Extend the film section. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0050] Example 1

[0051] This embodiment provides a directional deformation quick-release zipper, including a pair of zipper tapes 1, with two rows of chain teeth 2 and two limit stops arranged opposite to each other along the zipper tapes 1, and an anti-detachment upper stop 8 provided on one side of the zipper tape 1; it also includes a zipper pull 6 and a lower stop connector 3.

[0052] like Figures 1 to 5As shown, the limiting upper stop includes a first upper stop 4 and a second upper stop 5, respectively located at the top of the two rows of chain teeth 2, but neither is connected to the chain teeth 2. The first upper stop 4 is located on the right side of the chain teeth 2 row, and the second upper stop 5 is located on the left side of the chain teeth 2 row; the anti-detachment upper stop 8 is located at the top of the second upper stop 5. It should be noted that the chain teeth 2 and the lower stop connector 3 in the attached diagram are only for illustrative purposes and do not represent specific structural features.

[0053] The zipper pull 6 includes an upper wing 61, a lower wing 62, and a connecting post 63 connecting the two. Both the upper wing 61 and the lower wing 62 have side wings 64, and a chain engagement channel 65 is formed between the side wings 64 and the connecting post 63. The chain engagement channel 65 allows the chain teeth 2 on the two rows of chain teeth 2 to mesh sequentially through the wide and narrow portions 651 of the chain engagement channel 65. The interval between the upper wing 61 and the lower wing 62, the interval between the upper wing 61 and the lower wing 62 and the side wings 64, and the distance from the connecting post 63 to the side wings 64 are L1, L2, and L3, respectively.

[0054] The first upper stop 4 has a deformation hole 41 in the middle. Specifically, the first upper stop 4 is square, the deformation hole 41 is rectangular, the long side is vertical, and the four corners of the rectangle are rounded.

[0055] The first upper stop 4 has a directional groove 42 recessed into the deformation hole 41 on one side edge adjacent to the second upper stop 5. In this embodiment, the width of the directional groove 42 on the first upper stop 4 is denoted as the first length 43, and the lengths of the two sides of the first upper stop 4 at the edge of the deformation groove are denoted as the second length 44 and the third length 45, respectively. The second length 44 is greater than the third length 45, and the sum of the first length 43 and the third length 45 is greater than the second length 44.

[0056] The second upper stop 5 has two non-sharp protrusions on one side edge adjacent to the first upper stop 4, namely the squeezing part 51 and the limiting part 52. In this embodiment, the squeezing part 51 is located above the limiting part 52.

[0057] An adapter groove 53 is formed between the extrusion part 51 and the limiting part 52, and the extrusion part 51 and the orientation groove 42 are positioned opposite each other; specifically, the non-sharp protrusion here refers to the protrusion having a smooth transition curve in shape and outline.

[0058] The chain channel 65 includes a wide portion and a narrow portion 651 arranged vertically. When the extrusion portion 51 abuts against the orientation groove 42, the sum of the widths of the first upper stop 4 and the second upper stop 5 is greater than the narrow portion 651. The first upper stop 4 mates with the adapter groove 53 on the side adjacent to the orientation groove 42. After the extrusion portion 51 extrudes into the orientation groove 42, the first upper stop 4 elastically deforms inward at the orientation groove 42. The sum of the widths of the first upper stop 4 and the second upper stop 5 is equal to the narrow portion 651.

[0059] When the pull head 6 reaches the upper stop, the first upper stop 4 engages with the squeezing part 51 through the directional groove 42 and the portions on both sides of the directional groove 42. Similarly, the second upper stop 5 engages with the first upper stop 4 through the adapter groove 53 and the squeezing parts 51 and the limiting part 52 on both sides. After the pull head 6 passes the upper stop, the first upper stop 4 and the second upper stop 5 separate, and the first upper stop 4 returns to its original state.

[0060] By setting the directional groove 42, the consistency of contact point and stress distribution is ensured each time the zipper is pulled upwards. Simultaneously, it guides the first top stop 4 and its deformation hole 41 to undergo controllable, minute deformation primarily inwards, without outward expansion. This minimal deformation effectively reduces the accumulation of plastic fatigue caused by repeated use, thereby extending the overall lifespan of the zipper. Furthermore, the non-sharp protrusions prevent the risk of scratches during user operation.

[0061] In this embodiment, two square teeth 7 are fixedly provided between the anti-detachment upper stop 8 and the second upper stop 5. The thickness of the square teeth 7 is less than L1 and greater than L2, and the width is less than L3.

[0062] In this embodiment, the anti-detachment top stop 8 is fixed on the zipper tape 1, and the top of the anti-detachment top stop 8 protrudes towards the zipper tape 1 on the same side to form a limiting hook 81; the width of the anti-detachment top stop 8 at the limiting hook 81 is recorded as the first width 82; the width of the connecting post 63 and the side wing 64 is recorded as the second width, i.e., L3; the first width 82 is greater than the second width.

[0063] In this embodiment, the length from the top of the anti-detachment stop 8 to the top of the limit stop is greater than the length of the pull head 6.

[0064] Example 2

[0065] Features not explained in this embodiment are explained using the methods described in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is as follows:

[0066] like Figures 6 to 8 As shown, the first upper stop 4 and the second upper stop 5 each form a raised extension portion 9 on their respective sides near the zipper tape 1; the extension portion 9 is fixedly connected to the zipper tape 1; the thickness of the extension portion 9 is less than L1. By providing the extension portion 9, the contact area between the first upper stop 4, the second upper stop 5 and the zipper tape 1 can be increased, and the structural connection strength between the limiting upper stop and the zipper tape 1 can be enhanced.

[0067] Example 3

[0068] Features not explained in this embodiment are explained using the methods described in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is as follows:

[0069] The directional groove 42 is located in the middle of the deformation hole 41 in the vertical direction, which can effectively reduce the stress and fatigue damage caused by extrusion deformation to the first upper stop 4, and make the first upper stop 4 symmetrical and beautiful in appearance.

[0070] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A directional deformation quick-release zipper, comprising a pair of zipper tapes, two rows of chain teeth and two upper stop blocks arranged opposite to each other along the zipper tapes, and an anti-detachment upper stop block provided on one side of the zipper tape; further comprising a zipper pull and a lower stop connector; the upper stop blocks include a first upper stop and a second upper stop, respectively disposed at the top of the two rows of chain teeth; the anti-detachment upper stop block is disposed at the top of one side of the upper stop block; the zipper pull includes an upper wing, a lower wing, and a connecting post connecting the two; both the upper and lower wing have side wings, and a closing channel is formed between the side wings and the connecting post; characterized in that: The first upper stop has a deformation hole in the middle, and a directional groove that is recessed into the deformation hole is opened on one side edge adjacent to the second upper stop; the second upper stop has two non-sharp protrusions on one side edge adjacent to the first upper stop, namely a pressing part and a limiting part, and an adapter groove is formed between the pressing part and the limiting part, with the pressing part and the directional groove being opposite to each other. The chain channel includes a wide portion and a narrow portion arranged vertically; when the extrusion part abuts against the orientation groove, the sum of the widths of the first upper stop and the second upper stop is greater than the narrow portion, and the first upper stop mates with the adapter groove on the side adjacent to the orientation groove; after the extrusion part extrudes into the orientation groove, the first upper stop elastically deforms inward at the orientation groove; the sum of the widths of the first upper stop and the second upper stop is less than or equal to the narrow portion.

2. A directional deformation quick release fastener according to claim 1, wherein: The directional groove is located at the center of the deformable hole in the vertical direction.

3. A directional deformation quick release fastener according to claim 1, wherein: Both the first upper stop and the deformable hole are square.

4. A directional deformation quick release fastener according to claim 1, wherein: The first upper stop and the second upper stop each form a raised extension portion on their respective sides near the zipper tape; the extension portion is fixedly connected to the zipper tape; the thickness of the extension portion is less than or equal to the interval between the upper wing and the lower wing.

5. A directional deformation quick release fastener according to claim 1, wherein: The extrusion part is located above or below the limiting part; The first top stop and the second top stop are respectively fixed to the left and right zipper tapes, or their positions are interchanged; the anti-detachment top stop is located at the top of the first top stop or the second top stop.

6. A directional deformation quick release fastener according to claim 1, wherein: The first upper stop and the chain teeth on the chain tooth row are not connected.

7. A directional deformation quick release fastener according to claim 1 wherein: On one side of the zipper tape, a number of continuously arranged square teeth are fixedly provided between the anti-detachment upper stop and the limiting upper stop.

8. A direct deformation quick release fastener according to claim 7, wherein: The anti-detachment top stop is fixed to the zipper tape, and the top of the anti-detachment top stop protrudes to the side of the zipper tape on the same side to form a limiting hook; the width of the anti-detachment top stop at the limiting hook is recorded as the first width; the width of the connecting post and the side wing is recorded as the second width; the first width is greater than the second width.

9. A direct deformation quick release fastener according to claim 7, wherein: The length from the top of the anti-detachment stop to the top of the limit stop is greater than the length of the pull head.

10. A direct deformation quick release fastener according to claim 7, wherein: The thickness of the square tooth is less than or equal to the interval between the upper and lower winglets, and greater than the interval between the upper and lower winglets on the side wing; the thickness of the square tooth is less than or equal to the distance from the connecting post to the side wing.

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