Slider and zipper having the same

Abstract

The present invention discloses a slider, comprising a slider body, a pull tab and a self-locking spring. The pull tab comprises a hand-held portion and a rotating shaft connected to the hand-held portion. The rotating shaft and the hand-held portion form a connection port for rotationally connecting with a riveted nose of the slider body. A first protrusion is provided on the side of the rotating shaft facing the connection port. The first protrusion is used to lift the self-locking spring when the slider rotates away from the slider body to unlock the zipper. A second protrusion is provided on the side of the rotating shaft away from the connection port. The slider body is provided with a limiting groove for rotationally limiting the second protrusion so that the rotation angle of the slider is less than 90°. The slider prevents the rotation angle of the slider from reaching or exceeding 90° through the limiting effect of the mechanical structure. Therefore, after the slider is released, the self-locking spring generates a torque on the slider to make the slider automatically rebound and reset. The slider is easy to install and can avoid the slider's slider rebound failure. The present invention also discloses a zipper including the above-mentioned slider.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and more specifically, to a slider. In addition, the present invention also relates to a zipper comprising the slider. Background Art

[0002] Zippers are widely used in daily necessities such as clothing and accessories; as a key component of zippers, the slider plays a vital role.

[0003] The pull head usually includes a pull seat, a pull tab, a self-locking part and a self-locking spring. When the pull tab is lifted, the pull tab drives the self-locking spring to lift, thereby releasing the locking function of the self-locking part and putting the zipper in an unlocked state. At this time, applying external force to the pull tab can drive the pull head to close or open the zipper. When the pull tab is lowered, the pull tab will release the self-locking spring, which will reset under the action of its own elastic restoring force, locking the self-locking part and putting the zipper in a locked state. At this time, the zipper will not automatically disengage during normal user activities.

[0004] However, the slider in the prior art usually has the problem of the pull tab getting stuck, that is, the pull tab gets stuck after being lifted, and after the external force is removed, it cannot fall down and reset by its own gravity, causing the zipper to be in an unlocked state.

[0005] In order to solve this technical problem, the prior art adds a rebound torsion spring to the pull tab, and relies on the torsion of the rebound torsion spring to drive the pull tab to fall and reset. Specifically, the rebound torsion spring is connected to the pull seat and the pull tab respectively. When the pull tab is turned over, the torsion spring is twisted and deformed to generate a torsion force for reset. When the external force acting on the pull tab is removed, the torsion spring will force the pull tab to return to its original position.

[0006] However, due to its small structure, the installation of the rebound torsion spring is relatively complicated; in addition, during the electroplating and painting process, the rebound torsion spring and the shaft part will be immersed in the paint or plating solution, which may easily cause the elastic performance to fail.

[0007] In summary, how to provide a slider that is easy to install and avoids the failure of the pull tab due to rebound is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0008] In view of this, an object of the present invention is to provide a slider that is easy to install and can avoid the slider's pull tab from rebounding and failing.

[0009] Another object of the present invention is to provide a zipper including the above-mentioned slider, which can prevent the zipper from being unlocked due to the slider being stuck or stuck.

[0010] In order to achieve the above object, the present invention provides the following technical solutions:

[0011] A slider comprises a slider body, a pull tab and a self-locking reed, wherein the pull tab comprises a hand-held portion and a rotating shaft connected to the hand-held portion, the rotating shaft and the hand-held portion form a connecting port for rotatably connecting to a riveted nose of the slider body, a first protrusion is provided on the side of the rotating shaft facing the connecting port, the first protrusion is used to lift up the self-locking reed to unlock the zipper when the pull tab rotates away from the slider body; a second protrusion is provided on the side of the rotating shaft away from the connecting port, and the slider body is provided with a limiting groove for rotationally limiting the second protrusion so that the rotation angle of the pull tab is less than 90°.

[0012] Preferably, the first protrusion is a cam.

[0013] Preferably, the second protrusion comprises a straight plane for abutting against a groove wall of the limiting groove.

[0014] Preferably, the cross-section of the limiting groove is in the shape of a non-right-angled inverted trapezoid.

[0015] Preferably, the first protrusion and the second protrusion are an integrally formed structure, and the first protrusion and the second protrusion are fixedly connected to the rotating shaft after being formed.

[0016] Preferably, the first protrusion, the rotating shaft and the second protrusion are an integrally formed structure.

[0017] Preferably, the pull tab is a zinc alloy pull tab.

[0018] A zipper comprises a slider, wherein the slider is any one of the sliders described above.

[0019] The slider provided by the present invention provides a first protrusion on the side of the pull tab's rotating shaft facing the connecting port, so that when the pull tab flips in the direction away from the slider body, a top pressure is generated on the self-locking spring, so that the self-locking spring is lifted, thereby achieving the purpose of unlocking the zipper; and a limiting groove is provided on the slider body to rotationally limit the second protrusion provided on the side of the rotating shaft away from the connecting port, so that the flipping angle of the pull tab is less than 90°, so that after the external force applied to the pull tab is removed, the elastic restoring force of the self-locking spring itself acts on the first protrusion, so that the first protrusion drives the pull tab to rotate and reset in the opposite direction to lock the zipper.

[0020] That is, the slider provided by the present invention prevents the pull tab from rotating at an angle of 90° or more by limiting the position of the mechanical structure, so that after the pull tab is released, the pull tab automatically rebounds and resets by virtue of the torque exerted on the pull tab by the self-locking spring.

[0021] Compared with the prior art that uses a rebound torsion spring to make the pull tab rebound and reset, in this slider, since the first protrusion and the second protrusion are both mechanically connected to the rotating shaft, it is easy to install, and the mechanical structure of the limiting groove is used for limiting, so that the pull tab will not get stuck or jammed, and the pull tab can be prevented from rebounding and failing.

[0022] The zipper provided by the present invention includes the above-mentioned slider, has the above-mentioned beneficial effects, and can avoid the zipper from being unlocked due to the pull piece being stuck or stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the internal structure of a slider provided by a specific embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the middle slider body;

[0026] Figure 3 for Figure 1 An exploded view of the pull head shown;

[0027] Figure 4 for Figure 3 Assembly diagram of the .

[0028] Figures 1 to 4 The reference numerals in the figures are as follows:

[0029] 1 is the slider body, 11 is the riveting nose, 12 is the limiting groove, 13 is the self-locking hole, 2 is the pull tab, 21 is the hand-holding part, 22 is the rotating shaft, 23 is the connecting port, 221 is the first protruding part, 222 is the second protruding part, and 3 is the self-locking spring leaf. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The core of the present invention is to provide a slider that is easy to install and can avoid the pull tab of the slider from rebounding and failing. Another core of the present invention is to provide a zipper including the slider, which can avoid the zipper from being locked due to the pull tab being stuck or stuck.

[0032] Please refer to Figure 1-Figure 4 , Figure 1 A schematic diagram of the internal structure of a slider provided by a specific embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the middle slider body; Figure 3 for Figure 1 An exploded view of the pull head shown; Figure 4 for Figure 3 Assembly diagram of . Among them, Figure 2 The self-locking hole 13 is used for the self-locking reed 3 to be inserted.

[0033] The present invention provides a slider, comprising a pull tab 2, a slider body 1 and a self-locking spring 3. The pull tab 2 comprises a hand-held portion 21 and a rotating shaft 22 connected to the hand-held portion 21. The rotating shaft 22 and the hand-held portion 21 form a connecting port 23, and the connecting port 23 is used to be rotatably connected to a riveted nose 11 of the slider body 1. A first protrusion 221 is provided on the side of the rotating shaft 22 facing the connecting port 23, and the first protrusion 221 is used to lift the self-locking spring 3 when the pull tab 2 rotates away from the slider body 1 to unlock the zipper; a second protrusion 222 is provided on the side of the rotating shaft 22 away from the connecting port 23, and the slider body 1 is provided with a limiting groove 12 for limiting the second protrusion 222, so that the rotation angle of the pull tab 2 is less than 90°.

[0034] It can be understood that the function of the slider body 1 is to merge or separate two relatively arranged zipper chains, and the function of the pull tab 2 is that the terminal user can open or close the self-locking function of the self-locking reed 3 by applying external force to the pull tab 2, and the function of the self-locking reed 3 is to lock the movement of the self-locking component on the zipper teeth to achieve the function of locking the chain teeth.

[0035] The main structures of the slider body 1 and the self-locking reed 3 in the present invention are respectively the same as the structures of the conventional slider body 1 and the conventional self-locking reed 3 in the prior art, and will not be described in detail herein.

[0036] It should be noted that the grip portion 21 of the pull tab 2 is mainly for the end user to grasp so as to apply external force to the pull tab 2. The rotating shaft 22 is enclosed in the riveting nose 11 of the slider body 1, and the connecting port 23 is used to accommodate the riveting nose 11 so that the pull tab 2 can flexibly rotate relative to the riveting nose 11.

[0037] The key point of the present invention is that a first protrusion 221 is provided on the side of the rotating shaft 22 facing the connecting port 23 , a second protrusion 222 is provided on the side of the rotating shaft 22 away from the connecting port 23 , and the slider body 1 is provided with a limiting groove 12 for rotationally limiting the second protrusion 222 .

[0038] When the pull tab 2 flips in the direction away from the slider body 1, the pull tab 2 drives the first protrusion 221 to rotate. During the rotation, the first protrusion 221 lifts the self-locking spring 3 to release the locking function of the slider body 1 on the zipper, so that the zipper is in an unlocked state.

[0039] When the pull tab 2 rotates to the position where the second protrusion 222 contacts the limiting groove 12, the mechanical limiting effect of the limiting groove 12 will prevent the pull tab 2 from rotating further, preventing the pull tab 2 from rotating to 90° or more than 90°. That is, when the pull tab 2 rotates to a position close to 90°, the limiting effect of the limiting groove 12 and the second protrusion 222 will prevent the pull tab 2 from turning further. Therefore, it can prevent the pull tab 2 from getting stuck or stuck due to a large turning angle.

[0040] In addition, when the end user removes the external force acting on the pull tab 2, under the action of the elastic restoring force of the self-locking reed 3, the pull tab 2 will rotate and reset in the opposite direction (i.e., the direction close to the slider body 1) until the pull tab 2 is roughly parallel to the slider body 1. At this time, the self-locking reed 3 locks the self-locking part of the slider body 1, so that the zipper is in a locked state.

[0041] It can be seen from this that the slider provided by the present invention provides a first protrusion 221 on the side of the rotating shaft 22 of the slider 2 facing the connecting port 23, so that when the slider 2 flips in the direction away from the slider body 1, a top pressure is generated on the self-locking spring 3, so that the self-locking spring 3 is lifted up, thereby achieving the purpose of unlocking the zipper; and by providing a limiting groove 12 on the slider body 1, the second protrusion 222 provided on the side of the rotating shaft 22 away from the connecting port 23 is rotationally limited, so that the flipping angle of the slider 2 is less than 90°, so that after the external force applied to the slider 2 is removed, the elastic restoring force of the self-locking spring 3 itself acts on the first protrusion 221, so that the first protrusion 221 drives the slider 2 to rotate and reset in the opposite direction to lock the zipper.

[0042] That is, the slider provided by the present invention prevents the pull tab 2 from rotating at an angle of 90° or more by means of the limiting effect of the mechanical structure, so that after the pull tab 2 is released, the pull tab 2 automatically rebounds and resets by virtue of the torque exerted on the pull tab 2 by the self-locking spring 3.

[0043] Compared with the prior art that uses a rebound torsion spring to make the pull tab 2 rebound and reset, in this slider, since the first protrusion 221 and the second protrusion 222 are both mechanically connected to the rotating shaft 22, it is easy to install, and the mechanical structure of the limiting groove 12 is used to limit the pull tab 2, so that the pull tab 2 will not get stuck or stuck, and the rebound failure of the pull tab 2 can be avoided.

[0044] Taking into account the implementation of the specific structure of the first protrusion 221, on the basis of the above embodiment, the first protrusion 221 is a cam.

[0045] It can be understood that, since the cam has a variable diameter, the self-locking reed 3 is lifted up by the cam, so that the lifting movement of the self-locking reed 3 is smoother.

[0046] Taking into account the stability of the rotation limiting of the second protrusion 222 , on the basis of the above embodiments, the second protrusion 222 includes a straight plane for fitting against the groove wall of the limiting groove 12 .

[0047] That is to say, in this embodiment, the second protrusion 222 is rotationally limited by the surface-to-surface contact between the straight plane and the groove wall of the limiting groove 12, so that the limiting effect is more stable and reliable.

[0048] On the basis of the above embodiment, the cross-section of the limiting groove 12 is in the shape of a non-right-angle inverted trapezoid.

[0049] That is to say, the width of the groove opening of the limiting groove 12 is greater than the groove bottom width of the limiting groove 12, and the groove wall of the limiting groove 12 is not vertically arranged, so that the groove wall of the limiting groove 12 is inclined, so that the rotation angle of the pull tab 2 can be less than 90°.

[0050] Considering the convenience of assembling the pull tab 2, on the basis of any one of the above embodiments, the first protrusion 221 and the second protrusion 222 are an integrally formed structure, and the first protrusion 221 and the second protrusion 222 are fixedly connected to the rotating shaft 22 after being formed.

[0051] That is, during the assembly of the pull tab 2, after the first protrusion 221 and the second protrusion 222 are integrally formed, the integral structure of the first protrusion 221 and the second protrusion 222 is fixedly connected to the rotating shaft 22 so that the two are assembled together.

[0052] For example, a mounting hole may be provided on the integral structure after the first protrusion 221 and the second protrusion 222 are formed, and the mounting hole and the rotating shaft 22 are sleeved to achieve a fixed connection between the two.

[0053] Of course, a solution may also be adopted in which the first protruding portion 221 , the rotating shaft 22 and the second protruding portion 222 are an integrally formed structure.

[0054] That is to say, in this solution, the pull tab 2 is integrally formed, and the process is simple.

[0055] In order to meet the structural strength requirements of the first protrusion 221 and the second protrusion 222 , on the basis of the above embodiment, the pull tab 2 is a zinc alloy pull tab.

[0056] That is to say, in this embodiment, the pull tab 2 made of high-strength metal material is used to ensure the structural strength of the first protrusion 221 and the second protrusion 222 .

[0057] In addition to the above-mentioned slider, the present invention also provides a zipper including the slider disclosed in the above-mentioned embodiment. For the structures of other parts of the zipper, please refer to the prior art and will not be described in detail herein.

[0058] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above is a detailed introduction to the slider and the zipper with the slider provided by the present invention. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A slider, comprising a slider body (1), a pull tab (2) and a self-locking spring (3) The pull tab (2) comprises a hand-held portion (21) and a rotating shaft (22) connected to the hand-held portion (21), wherein the rotating shaft (22) and the hand-held portion (21) form a connecting port (23) for rotationally connecting to the riveted nose (11) of the slider body (1), characterized in that: A first protrusion (221) is provided on a side of the rotating shaft (22) facing the connecting port (23), and the first protrusion (221) is used to lift up the self-locking spring (3) when the pull tab (2) rotates away from the slider body (1) to unlock the zipper; a second protrusion (222) is provided on a side of the rotating shaft (22) away from the connecting port (23), and the slider body (1) is provided with a limiting groove (12) for limiting the rotation of the second protrusion (222), so that the rotation angle of the pull tab (2) is less than 90°; The second protrusion (222) comprises a straight plane for abutting against the groove wall of the limiting groove (12); The cross-section of the limiting groove (12) is in the shape of a non-right-angle inverted trapezoid, so that the groove wall of the limiting groove (12) is inclined, so that the rotation angle of the pull tab (2) is less than 90°.

2. The slider according to claim 1, characterized in that: The first protrusion (221) is a cam.

3. The slider according to claim 1 or 2, characterized in that: The first protruding portion (221) and the second protruding portion (222) are an integrally formed structure, and the first protruding portion (221) and the second protruding portion (222) are fixedly connected to the rotating shaft (22) after being formed.

4. The slider according to claim 1 or 2, characterized in that: The first protruding portion (221), the rotating shaft (22) and the second protruding portion (222) are an integrally formed structure.

5. The slider according to claim 4, characterized in that: The pull tab (2) is a zinc alloy pull tab.

6. A zipper, comprising a slider, characterized in that: The slider is the slider according to any one of claims 1 to 5.

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