Arc-shaped reed puller

Abstract

The utility model discloses an arc-shaped reed pull head, which relates to the technical field of pull head structures and comprises a pull seat and a pull piece. A boss is arranged on the upper surface of the pull seat, and a shaft hole is formed in the boss; the upper surface of the zipper base is further provided with a downward-concave movable groove with the horizontal bottom, and the direction of the movable groove is consistent with the extending direction of the zipper. An elastic reed is further included, and the reed is arranged in the movable groove. Wherein the middle of the reed is a bent arc part, and the two ends of the bent arc part are in contact with the bottoms of the movable grooves respectively, so that the bent arc part faces outwards; a rotating shaft is arranged at one end of the pulling piece and is matched with the shaft hole; a protruding brake part is arranged on one face of the pull piece and arranged on the rotating shaft or close to the rotating shaft. The braking part comprises a braking surface; and the braking surface is parallel to the pulling piece. The pull seat is provided with the movable groove and the reed which are matched with the brake part on the pull piece, so that the pull piece has a good brake / stop effect relative to the pull seat, the structure is simpler, and compared with the prior art, the pull seat is easy to produce, low in cost and easy to install.

Description

Technical Field

[0001] The utility model relates to the technical field of pull head structures, in particular to an arc-shaped spring pull head. Background Art

[0002] Zipper pullers, commonly known as zipper heads or zipper sliders, are one of the key components in the zipper system. Their main function is to slide along the zipper teeth so that the zipper teeth can engage or disengage with each other, thereby opening and closing items such as clothing and bags. Modern pullers are usually made of metal or plastic and are durable, lightweight, and beautiful.

[0003] In order to better meet the needs of various clothing and luggage products and provide better opening and closing effects and user experience, a variety of slider types have been produced on the market. Among them, there is a self-locking slider, which has a built-in locking mechanism. When the zipper is fully pulled up, the slider will automatically lock on the zipper to prevent the zipper from loosening due to activity or vibration; in addition, the slider also includes a pull tab to facilitate the user's grasping operation, and the pull tab of the self-locking slider can remain stationary relative to the pull seat to avoid the pull tab shaking or swinging during intense exercise. For example, the patent document with announcement number CN209995487U provides a slider and a zipper with the slider, wherein the slider includes a pull seat and a pull tab, and also includes a spring sheet for driving the pull tab to reset and a cap for covering the spring sheet, and the two ends of the cap are respectively connected to the pull seat. During assembly, the two ends of the cap are respectively connected to the pull seat. This solution is a significant improvement over the prior art, but the structure of the slider accessory is still relatively complex, and the production process is difficult; and the assembly difficulty caused by the complex structure still has room for improvement.

[0004] Therefore, there is an urgent need to provide an arc-shaped reed puller to solve the above technical problems. Summary of the invention

[0005] In view of the problems in the related art, the utility model proposes an arc-shaped spring pull head, which has a good pull head self-locking function, and the pull piece will not shake, has a simple structure, and is easy to assemble.

[0006] The utility model is achieved in this way:

[0007] An arc-shaped spring slider comprises a slider seat and a slider, wherein the slider seat is used to close or separate a zipper; a boss is provided on the upper surface of the slider seat, an axial hole is provided on the boss, and the through direction of the axial hole is perpendicular to the extending direction of the zipper;

[0008] The upper surface of the pull seat is also provided with a movable groove which is concave and has a horizontal bottom. The movable groove extends linearly, and its extension direction is consistent with the extension direction of the zipper; it also includes an elastic spring sheet, and the spring sheet is placed in the movable groove; wherein the middle of the spring sheet is a curved portion, and the two ends of the curved portion are respectively in contact with the bottom of the movable groove, so that the curved portion faces outward;

[0009] A rotating shaft is provided at one end of the pull tab, and the rotating shaft cooperates with the shaft hole; a protruding braking part is provided on one side of the pull tab, and the braking part is provided at or near the rotating shaft; the braking part includes a flat braking surface; the braking surface is parallel to the plane where the pull tab is located;

[0010] When the pull tab is laid flat relative to the upper surface of the pull seat, the braking portion presses downward on the spring sheet, and the spring sheet is deformed in the movable groove until the braking surface is in contact with the spring sheet; when the pull tab is flipped up relative to the upper surface of the pull seat around the rotation axis, the braking portion is separated from the spring sheet, and the spring sheet resumes its arc-shaped structure.

[0011] By arranging the movable groove, the spring sheet and the braking part on the pull tab, the pull tab has a good braking / stopping effect relative to the pull seat. The structure is simple and easy to produce, low cost and easy to install compared with the existing technology.

[0012] The movable groove is not only the movable space of the reed, but also limits the position of the reed; further, there is a clearance fit between the movable groove and the reed. The bottom size of the movable groove is slightly larger than the size of the reed after being flattened.

[0013] As a further optimization of the above solution, the pull seat includes an upper wing plate and a lower wing plate, and an integrally formed guide column is provided between the upper wing plate and the lower wing plate at the same end; a Y-shaped channel is formed between the upper wing plate, the lower wing plate and the guide column;

[0014] The boss and the movable groove are both arranged on the upper surface of the upper wing plate.

[0015] The two separated zipper parts are closed through the Y-shaped channel, or the closed zipper is separated through the Y-shaped channel.

[0016] As a further optimization of the above solution, the pull tab is further provided with a raised limiting tooth on the side provided with the braking portion; the upper wing plate is further provided with a through hole for the limiting tooth to pass through, and the through hole is connected to the Y-shaped channel; the zipper is provided with a plurality of evenly arranged chain teeth;

[0017] When the pull tab is laid flat, the end of the limiting protruding tooth is embedded between two adjacent link teeth.

[0018] By providing the limiting protruding teeth and the perforations, relative fixation between the pull head and the zipper, that is, stop locking between the pull head and the zipper, is achieved.

[0019] As a further optimization of the above solution, the end of the limiting protrusion is a gradually shrinking and smooth transition.

[0020] The smoothly transitioned limit teeth cause less wear on the chain teeth and help the zipper pull to move smoothly, reducing jamming and providing a smoother user experience.

[0021] As a further optimization of the above solution, the end of the limiting protrusion is a sharp angle, and the range of the angle is 30° to 90°.

[0022] The sharp angle can provide better mechanical engagement and a more stable fit.

[0023] As a further optimization of the above solution, the limiting protrusion is arranged close to the rotating shaft; and an integrally formed and continuous transition portion is provided between the limiting protrusion and the rotating shaft.

[0024] The transition portion can further enhance the structural strength of the limiting protrusion and prevent the limiting protrusion from being subjected to excessively concentrated stress.

[0025] As a further optimization of the above solution, the movable groove and the through hole are arranged side by side, and the direction of the side by side is the same as the extension direction of the rotating shaft.

[0026] The side-by-side arrangement helps optimize the space utilization of the zipper puller, making the zipper puller more compact.

[0027] As a further optimization of the above solution, the cross-section of the guide column is wedge-shaped, and the inclined wedge includes a wide end and a narrow end; one end of the guide column is located at one end of the pull head, and the narrow end faces the other end of the pull head.

[0028] As a further optimization of the above solution, there are two bosses, which are arranged on opposite sides and are respectively provided with axial holes opposite to each other;

[0029] The rotating shaft comprises a detachable latch or an integrated convex pin; the latch or the convex pin passes through the shaft hole, so that the pull tab and the pull seat are hinged.

[0030] As a further optimization of the above solution, the movable groove is arranged between the two bosses; the braking part is arranged at the rotating shaft;

[0031] After the slider is assembled, the rotation axis is located directly above the curved portion.

[0032] The beneficial effects are as follows:

[0033] The utility model provides an arc-shaped spring pull head, which provides a movable groove and a spring on the pull seat, and cooperates with a braking part on the pull piece, so that the pull piece has a good braking / stopping effect relative to the pull seat. Compared with the prior art, the structure is simpler, easier to produce, lower cost and easier to install than the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a slider provided by an embodiment of the utility model;

[0035] Figure 2 for Figure 1 Explosion diagram of

[0036] Figure 3 for Figure 2 A local enlarged schematic diagram at point a;

[0037] Figure 4 A schematic diagram of the cross-section structure of the pull seat provided in an embodiment of the utility model at the guide post;

[0038] Figure 5 A schematic diagram of the cross-sectional structure of the slider at the reed provided by an embodiment of the utility model;

[0039] Figure 6 A schematic diagram of the cross-sectional structure of the slider at the spring sheet when the pull tab falls provided in an embodiment of the utility model;

[0040] Figure 7 A schematic diagram of the cross-sectional structure of the slider at the perforation when the pull tab falls provided in an embodiment of the utility model;

[0041] Reference numerals:

[0042] 1. Pull the seat;

[0043] 11. Upper wing plate; 12. Lower wing plate; 13. Guide column;

[0044] 131, wide end; 132, narrow end;

[0045] 14. Y-shaped channel; 15. boss; 151. shaft hole;

[0046] 16. movable groove; 17. perforation;

[0047] 2. Pull tab;

[0048] 21. Rotating shaft; 22. Braking part; 221. Braking surface;

[0049] 23. Limiting convex teeth; 24. Transition part;

[0050] 3. Reed; 31. Bending part; 4. Latch. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] like Figures 1 to 7 As shown, this embodiment provides an arc-shaped spring pull head, including a pull seat 1 and a pull tab 2, wherein the pull seat 1 is used to close or separate the zipper;

[0053] In this embodiment, the pull seat 1 includes an upper wing plate 11 and a lower wing plate 12, and an integrally formed guide column 13 is provided between the upper wing plate 11 and the lower wing plate 12 at the same end;

[0054] In this embodiment, the cross section of the guide column 13 is wedge-shaped, and the inclined wedge includes a wide end 131 and a narrow end 132; one end of the guide column 13 is located at one end of the slider, and the narrow end 132 faces the other end of the slider. A Y-shaped channel 14 is formed between the upper wing plate 11, the lower wing plate 12 and the guide column 13;

[0055] The two separated zipper parts are closed through the Y-shaped channel 14, or the closed zipper is separated through the Y-shaped channel 14.

[0056] In this embodiment, two bosses 15 are provided on the upper surface of the upper wing plate 11. The two bosses 15 are arranged on opposite sides and are respectively provided with shaft holes 151 opposite to each other. The through direction of the shaft hole 151 is perpendicular to the extending direction of the zipper.

[0057] A rotating shaft 21 is disposed at one end of the pull tab 2. The rotating shaft 21 includes a detachable latch 4. The latch 4 passes through the shaft hole 151 and the rotating shaft 21, so that the pull tab 2 and the pull seat 1 are hinged.

[0058] The upper surface of the pull seat 1 is also provided with a movable groove 16 which is concave and has a horizontal bottom. The movable groove 16 extends linearly, and its extending direction is consistent with the extending direction of the zipper. The movable groove 16 is provided between the two bosses 15.

[0059] The elastic spring 3 is also included, and the spring 3 is placed in the movable groove 16; wherein, the middle of the spring 3 is a curved portion 31, and the two ends of the curved portion 31 are respectively in contact with the bottom of the movable groove 16, so that the curved portion 31 faces outward; there is a clearance fit between the movable groove 16 and the spring 3. The bottom size of the movable groove 16 is slightly larger than the size of the flattened spring 3. The movable groove 16 is both the movable space of the spring 3 and a limit for the spring 3.

[0060] One side of the pull tab 2 is provided with a raised braking portion 22 at the rotation axis 21 , and the braking portion 22 includes a flat braking surface 221 ; the braking surface 221 is parallel to the plane where the pull tab 2 is located; after the slider is assembled, the rotation axis 21 is located directly above the curved portion 31 .

[0061] When the pull tab 2 is laid flat relative to the upper surface of the pull seat 1, the braking portion 22 presses the spring leaf 3 downward, and the spring leaf 3 is deformed in the movable groove 16 until the braking surface 221 fits with the spring leaf 3; when the pull tab 2 is flipped up relative to the upper surface of the pull seat 1 around the rotating axis 21, the braking portion 22 is separated from the spring leaf 3, and the spring leaf 3 restores the arc structure.

[0062] By setting the movable groove 16, the spring 3 and the braking part 22 on the pull tab 2, the pull tab 2 has a good braking / stopping effect relative to the pull seat 1, and the structure is simple, easy to produce, low cost and easy to install compared with the existing technology.

[0063] In this embodiment, the pull tab 2 is further provided with a raised limiting tooth 23 on the side provided with the braking portion 22; in this embodiment, the limiting tooth 23 is provided near the rotation axis 21; an integrally formed and continuous transition portion 24 is provided between the limiting tooth 23 and the rotation axis 21. The transition portion 24 can further enhance the structural strength of the limiting tooth 23 and prevent the limiting tooth 23 from being subjected to excessively concentrated stress.

[0064] In this embodiment, the end of the limiting protrusion 23 is a gradually shrinking smooth transition. The smoothly transitioned limiting protrusion 23 causes less wear on the chain teeth, and helps the zipper puller to move smoothly, reduce jamming, and provide a smoother user experience.

[0065] The upper wing plate 11 is also provided with a through hole 17 for the limiting protruding teeth 23 to pass through, and the through hole 17 is connected to the Y-shaped channel 14; the zipper is provided with a plurality of evenly arranged chain teeth;

[0066] When the pull tab 2 is laid flat, the end of the limiting protruding tooth 23 is embedded between two adjacent chain teeth.

[0067] By providing the limiting protruding teeth 23 and the through holes 17, relative fixation between the slider and the zipper, that is, stop locking between the slider and the zipper, is achieved.

[0068] In this embodiment, the movable groove 16 and the through hole 17 are arranged side by side, and the direction of the side by side arrangement is the same as the extension direction of the rotating shaft 21. The side by side arrangement helps to optimize the space utilization of the zipper head, making the zipper head more compact.

[0069] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. An arc-shaped reed pull head, comprising a pull seat and a pull tab, wherein the pull seat is used to close or separate a zipper; characterized in that: A boss is provided on the upper surface of the pull seat, and an axial hole is provided on the boss, and the through direction of the axial hole is perpendicular to the extending direction of the zipper; The upper surface of the pull seat is also provided with a movable groove which is concave and has a horizontal bottom. The movable groove extends linearly, and its extension direction is consistent with the extension direction of the zipper; it also includes an elastic spring sheet, and the spring sheet is placed in the movable groove; wherein the middle of the spring sheet is a curved portion, and the two ends of the curved portion are respectively in contact with the bottom of the movable groove, so that the curved portion faces outward; A rotating shaft is provided at one end of the pull tab, and the rotating shaft cooperates with the shaft hole; a protruding braking part is provided on one side of the pull tab, and the braking part is provided at or near the rotating shaft; the braking part includes a flat braking surface; the braking surface is parallel to the plane where the pull tab is located; When the pull tab is laid flat relative to the upper surface of the pull seat, the braking portion presses downward on the spring sheet, and the spring sheet is deformed in the movable groove until the braking surface is in contact with the spring sheet; when the pull tab is flipped up relative to the upper surface of the pull seat around the rotation axis, the braking portion is separated from the spring sheet, and the spring sheet resumes its arc-shaped structure.

2. The arc-shaped spring puller according to claim 1, characterized in that: The pull seat comprises an upper wing plate and a lower wing plate, and an integrally formed guide column is provided between the upper wing plate and the lower wing plate at the same end; a Y-shaped channel is formed between the upper wing plate, the lower wing plate and the guide column; The boss and the movable groove are both arranged on the upper surface of the upper wing plate.

3. The arc-shaped reed puller according to claim 2, characterized in that: The pull tab is also provided with a raised limiting tooth on the side provided with the braking portion; the upper wing plate is also provided with a through hole for the limiting tooth to pass through, and the through hole is connected to the Y-shaped channel; the zipper is provided with a plurality of evenly arranged chain teeth; When the pull tab is laid flat, the end of the limiting protruding tooth is embedded between two adjacent link teeth.

4. The arc-shaped spring puller according to claim 3, characterized in that: The end of the limiting protruding tooth is a gradually shrinking and smooth transition.

5. The arc-shaped spring puller according to claim 3, characterized in that: The end of the limiting protrusion has a sharp angle, and the angle ranges from 30° to 90°.

6. The arc-shaped spring puller according to claim 3, characterized in that: The limiting protrusion is arranged near the rotating shaft; an integrally formed and continuous transition portion is arranged between the limiting protrusion and the rotating shaft.

7. The arc-shaped spring puller according to claim 3, characterized in that: The movable groove and the through hole are arranged side by side, and the direction of the side by side is the same as the extending direction of the rotating shaft.

8. The arc-shaped reed puller according to claim 2, characterized in that: The cross section of the guide column is wedge-shaped, and the inclined wedge includes a wide end and a narrow end; one end of the guide column is located at one end of the slider, and the narrow end faces the other end of the slider.

9. The arc-shaped spring puller according to claim 1, characterized in that: There are two bosses, which are arranged on opposite sides and are respectively provided with axial holes opposite to each other; The rotating shaft comprises a detachable latch or an integrated convex pin; the latch or the convex pin passes through the shaft hole, so that the pull tab and the pull seat are hinged.

10. The arc-shaped spring puller according to claim 9, characterized in that: The movable groove is arranged between the two bosses; the braking part is arranged at the rotating shaft; After the slider is assembled, the rotation axis is located directly above the curved portion.

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