Hidden zipper lock slider

Abstract

A locking slider for a concealed zipper is disclosed, including a pull tab, a slider body, and a hook. The first transverse rod of the pull tab is provided with a hinge connector and a bump, and the nose of the slider body is provided with a hinge connector groove that rotatably engages with the hinge connector and a position-limiting groove that engages with the bump to limit its position. The pull tab is attached to the slider body, with the hinge connector located in the hinge connector groove and the bump located in the position-limiting groove. When the pull tab is rotated, the hinge connector rotates in the hinge connector groove and the bump moves in the position-limiting groove, and when the pull tab is rotated to make a predetermined angle with the bottom surface of the slider body, the bump can push the hook, causing the pull tab to rotate further, the bump pushes the hook away from the element, and unlocks the slider body. During the rotation of the pull tab, the bump is always partially positioned within the position-restricting groove, and the position-restricting groove can always restrict the position of the bump, limiting the movement of the pull tab along the axial direction of the first transverse rod, and further reducing the swing of the pull tab during the reversal process, thereby improving the effectiveness of the concealed fastener.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application with an application number of 202310960101.2 and an invention title of "Lock Slider of Hidden Fastener", which was filed with the China Patent Office on August 1, 2023, and all its contents are incorporated herein by reference.

[0002] This application relates to the technical field of clothing, particularly to the lock slider of hidden fasteners.

Background Art

[0003] Currently, in hidden lock-type fasteners, left protrusions and right protrusions are provided at the tip of the pull tab, and a groove for engaging with the hook is provided in the middle of the horizontal rod of the pull tab to prevent the pull tab from swaying left and right. However, when the hook is not inserted into the element, during the process of reverse use, the pull tab still sways to a certain extent, affecting the use effect of the hidden fastener.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This application provides a lock slider of a hidden fastener to reduce the sway of the pull tab during the reverse process and improve the use effect of the hidden fastener.

Means for Solving the Problems

[0005] To achieve the above object, this application provides a lock slider of a hidden fastener, including a pull tab, a slider body, and a hook. A first horizontal rod is provided at one end of the pull tab. The first horizontal rod includes a hinge connecting portion and a bump protruding from the outer peripheral surface of the hinge connecting portion. A hinge connecting groove rotatably engaged with the hinge connecting portion and a position limiting groove engaged to be position-limited by the bump are provided at the nose of the slider body. The position limiting groove limits the movement of the pull tab along the axial direction of the first horizontal rod. At least one end of the hook is inserted into the element to lock the slider body, and the bump is equipped with a touch control unit, which, when the pull handle rotates to form a predetermined angle with the lower surface of the slider body, presses the hook, causing the hook to detach from the element and releasing the lock on the slider body.

[0006] Preferably, in the lock slider of the concealed fastener, the bump is an arc-shaped bump arranged coaxially with the hinge connection portion.

[0007] Preferably, the lock slider of the concealed fastener further includes a spring cover connected to the slider body, the spring cover being provided with a crimping portion capable of applying pressure to the hook so as to drive the hook to move in the direction of insertion into the element.

[0008] Preferably, in the lock slider of the concealed fastener, the crimping portion is a spring, the spring includes a horizontal segment and an arc-shaped segment, the horizontal segment is capable of being in close contact with the hook, both ends of the arc-shaped segment are connected to the horizontal segment and the spring cover, respectively, and the arc-shaped segment is elastically deformable so as to bias the horizontal segment.

[0009] Preferably, in the lock slider of the concealed fastener, the crimping portion further includes a contact plate, the contact plate is connected to the spring cover and is capable of contacting the portion of the hook corresponding to the bump.

[0010] Preferably, in the lock slider of the concealed zipper, a projection wall is provided on the nose portion of the slider body, a stepped surface is provided on the projection wall to support the spring cover, and the projection wall deforms when mechanical pressure is applied, pressing the spring cover against the stepped surface.

[0011] Preferably, in the lock slider of the concealed fastener, a first position limiting portion is provided on the nose portion of the slider body, and a second position limiting portion is provided on the spring cover, and the first position limiting portion and the second position limiting portion engage with each other to restrict the movement of the spring cover along a direction perpendicular to the axial direction of the first transverse rod.

[0012] Preferably, in the lock slider of the concealed fastener, the spring cover is provided with a bend, the bend is directed toward the hook, and the distance between the spring cover and the hook is increased.

[0013] Preferably, in the lock slider of the concealed fastener, the hook is a U-shaped hook, the rear end vertical rod of the U-shaped hook is insertable into the element, and is connected to a second horizontal rod of the U-shaped hook by an oblique rod, and the oblique rod is inclined from the second horizontal rod toward the lower surface of the slider body, thereby preventing the spring cover from obstructing the movement of the hook.

[0014] Preferably, in the lock slider of the concealed fastener, the hinge connecting portion is provided with a locking groove, the hook is fitted into the locking groove, and the locking groove and the bump are arranged on both sides in the axial direction of the first transverse rod so as to face each other. [Effects of the Invention]

[0015] The lock slider of a concealed fastener provided in the embodiment of this application includes a pull tab, a slider body, and a hook. The first transverse rod of the pull tab is provided with a hinge connector and a bump, and the nose of the slider body is provided with a hinge connector groove that rotatably engages with the hinge connector and a position-limiting groove that engages with the bump to limit its position. The pull tab is attached to the slider body, the hinge connector is located in the hinge connector groove, and at the same time, the bump is located in the position-limiting groove. When the pull tab is rotated, the hinge connector rotates in the hinge connector groove, and at the same time, the bump moves in the position-limiting groove, and when the pull tab is rotated to make a predetermined angle with the lower surface of the slider body, the bump can push the hook, causing the pull tab to rotate further, the bump pushes the hook so as to disengage from the element, and unlocks the slider body. During the rotation of the pull tab, the bump is always partially positioned within the position-restricting groove, and the position-restricting groove can always restrict the position of the bump, limiting the movement of the pull tab along the axial direction of the first transverse rod, and further reducing the swing of the pull tab during the reversal process, thereby improving the effectiveness of the concealed fastener.

[0016] To better illustrate the embodiments of this application or the prior art, the following are some of the necessary drawings describing the embodiments or the prior art. The drawings below are merely some examples or embodiments of this application, and a person skilled in the art may obtain other drawings based on the provided drawings, without performing work commensurate with inventive step, and may also apply this application to other similar situations based on the provided drawings. Unless otherwise obvious or specifically described in the specification, the same reference numerals in the drawings indicate similar structures or operations. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic diagram of the structure of a lock slider (before mechanical pressurization) of a concealed fastener provided by the first embodiment of this application. [Figure 2] This is a schematic diagram of the structure of a lock slider for a concealed fastener provided by the first embodiment of this application. [Figure 3]Exploded view of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 4] Structural schematic diagram of the slider body of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 5] Cross-sectional view of the slider body of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 6] Structural schematic diagram of the handle of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 7] Cross-sectional view of the handle of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 8] Structural schematic diagram of the spring cover of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 9] Structural schematic diagram of the hook of the lock slider of the hidden fastener provided by the first embodiment of the present application. [Figure 10] Structural schematic diagram of the lock slider of the hidden fastener provided by the first embodiment of the present application at the initial position. [Figure 11] Structural schematic diagram of the lock slider of the hidden fastener provided by the first embodiment of the present application at the second position. [Figure 12] Structural schematic diagram of the lock slider of the hidden fastener provided by the first embodiment of the present application at the third position. [Figure 13] Structural schematic diagram of the lock slider of the hidden fastener provided by the first embodiment of the present application at the fourth position. [Figure 14] Structural schematic diagram of the lock slider of the hidden fastener provided by the second embodiment of the present application. [Figure 15] Cross-sectional view of the lock slider of the hidden fastener provided by the second embodiment of the present application. [Figure 16] Structural schematic diagram of the spring cover of the lock slider of the hidden fastener provided by the second embodiment of the present application. [Modes for carrying out the invention]

[0018] The present application will be described in more detail below, combining the drawings and embodiments. The specific embodiments described herein are not limiting to this application and are merely interpretable in relation to the relevant applications. The embodiments described herein are not all embodiments of this application, but only a selection of embodiments. All other embodiments obtained based on the embodiments of this application, provided that a person skilled in the art does not perform work worthy of inventive step, are all within the scope of protection of this application.

[0019] Here, for the sake of clarity, only the parts relating to related applications are shown in the drawings. Where there is no conflict, the embodiments and features in the embodiments in this application may be combined with each other.

[0020] Hereafter, terms such as "First," "Second," etc., do not indicate or imply relative importance, nor do they implicitly indicate the number of technical features they refer to; they are merely for descriptive purposes. Therefore, features designated as "First," "Second," etc., explicitly or implicitly include one or more such features.

[0021] Refer to Figures 1 to 16.

[0022] This application discloses a lock slider for a concealed zipper, comprising a pull tab 1, a slider body 2, and a hook 3. Specifically, both the pull tab 1 and the hook 3 are attached to the slider body 2, and the pull tab 1 is secured to the slider body 2 by the hook 3.

[0023] A first horizontal rod 11 is provided at one end of the pull handle 1, and the first horizontal rod 11 includes a hinge connecting portion and a bump 111 protruding from the outer circumferential surface of the hinge connecting portion. A hinge connecting groove 211 is provided at the nose portion 21 of the slider body 2, which is rotatably engaged with the hinge connecting portion. As a result, the pull handle 1 is rotatable on the slider body 2. The slider body 2 is provided with a position limiting groove 212 that is engaged with the bump 111 to restrict its position. The position limiting groove 212 is opened at the bottom of the hinge connecting groove 211, and the bump 111 engages with the position limiting groove 212, restricting the movement of the pull handle 1 along the axial direction of the first horizontal rod 11 and reducing the swing of the pull handle 1.

[0024] At least one end of the hook 3 is insertable into the element. When the hook 3 is inserted into the element, it locks the slider body 2, and when the hook 3 detaches from the element, it unlocks the slider body 2.

[0025] The bump 111 is equipped with a touch control unit. When the pull handle 1 rotates to form a predetermined angle with the lower surface of the slider body 2, the touch control unit presses the hook 3, causing the hook 3 to detach from the element and unlocking the slider body 2. In this solution, the slider body 2 can be switched between a locked state and an unlocked state by rotating the bump 111.

[0026] The touch control unit of the bump 111 is the part of the bump 111 that can contact the hook 3 and apply thrust to the hook 3. When the pull handle 1 is rotated to form a predetermined angle with the lower surface of the slider body 2, the touch control unit of the bump 111 contacts the hook 3 and applies thrust to the hook 3. When the pull handle 1 continues to rotate beyond the predetermined angle, the touch control unit of the bump 111 continues to push the hook 3, causing the hook 3 to detach from the element and unlocking the slider body 2. When the pull handle 1 is rotated in the opposite direction, the pull handle 1 returns to its initial position, the hook 3 is inserted and connected, and the slider body 2 is locked.

[0027] The lower surface of the slider body 2 is the surface of the slider body 2 that is on the inside of the tape, and the inside of the tape is the side of the tape that is closer to the inside of the clothing.

[0028] A person skilled in the art may design the given angle flexibly according to the actual needs, and it may be 5°, 10°, or any other angle, but is not limited herein.

[0029] The lock slider of the concealed fastener disclosed in this application includes a pull tab 1, a slider body 2, and a hook 3. The first transverse rod 11 of the pull tab 1 is provided with a hinge connector and a bump 111, and the nose portion 21 of the slider body 2 is provided with a hinge connector groove 211 that rotatably engages with the hinge connector and a position limiting groove 212 that engages so as to be position-limiting to the bump 111. The pull tab 1 is attached to the slider body 2, the hinge connector is located in the hinge connector groove 211, and at the same time, the bump 111 is located in the position limiting groove 212. When the pull tab 1 rotates, the hinge connection rotates within the hinge connection groove 211, and simultaneously, the bump 111 moves within the position limiting groove 212. When the pull tab 1 rotates to form a predetermined angle with the lower surface of the slider body 2, the bump 111 can push the hook 3, causing the pull tab 1 to rotate further. The bump 111 pushes the hook 3 away from the element, unlocking the slider body 2. During the rotation of the pull tab 1, the bump 111 is always partially located within the position limiting groove 212, which constantly limits the position of the bump 111, restricting the movement of the pull tab 1 along the axial direction of the first transverse rod 11, and further reducing the swaying of the pull tab 1 during the reverse use process, thereby improving the effectiveness of the concealed fastener.

[0030] In this application, the bump 111 can exert the effect of restricting the movement of the pull handle 1 along the length of the first transverse rod 11, and can also exert the effect of pressing the hook 3 and unlocking the slider body 2.

[0031] Preferably, the hinge connection portion of the first transverse rod 11 and the bump 111 are manufactured to be integrally molded.

[0032] As shown in Figure 3, the bump 111 is an arc-shaped bump, and when the side of the arc-shaped bump contacts the hook 3, the arc-shaped bump can push the hook 3. Preferably, the position limiting groove 212 is an arc-shaped position limiting groove.

[0033] The arc of the arc-shaped bump determines the size of a predetermined angle. Preferably, the bump 111 is arranged coaxially with the hinge connection.

[0034] In some embodiments of this application, the arc of the curved bump is 180°, and the pull handle 1 can push the hook 3 by rotating only a small angle, improving the reliability of unlocking the slider body 2.

[0035] As shown in Figure 10, the pull handle 1 is in the first operating position, the pull handle 1 is at the tip of the slider body 2 and its rotation angle is 0°, the bump 111 does not apply thrust to the hook 3, and the hook 3 is inserted into the element. As shown in Figure 11, when the pull handle 1 is in the second operating position, the pull handle 1 is at the tip of the slider body 2 and rotates by a certain angle, which is less than 90°, the bump 111 imparts thrust to the hook 3, and the hook 3 detaches from the element but is not pushed up to the highest position. When the pull handle 1 continues to rotate to 90°, the bump 111 imparts thrust to the hook 3, and the hook 3 is pushed up to the highest position. As shown in Figure 11, the pull handle 1 is in the third operating position, and the pull handle 1 is at the rear end of the slider body 2 and rotates by a certain angle, which is greater than 90° and less than 180°, so that the bump 111 applies thrust to the hook 3, the hook 3 detaches from the element, and the height to which the hook 3 is pushed up decreases. As shown in Figure 12, the pull handle 1 is in the fourth operating position, and the pull handle 1 is at the rear end of the slider body 2 and rotates by a certain angle, which approaches 180°, the bump 111 applies thrust to the hook 3, the hook 3 detaches from the element, and the height to which the hook 3 is pushed up decreases.

[0036] Here, we will explain the front and back. One end of the slider body 2 is provided with a meshing exit, and the other end is provided with two entry points. In this solution, the direction in which the entry points of the slider body 2 are located is defined as the front, and the direction in which the meshing openings of the slider body 2 are located is defined as the back.

[0037] In an embodiment where the arc of the curved bump is 180°, the curved bump rotates 180° with the pull handle 1, and the curved bump is always partially located within the position limiting groove 212, ensuring that the position limiting groove 212 always limits the position of the bump 111, thereby maximally resolving the problem of the pull handle 1 shaking during the rotation process.

[0038] Preferably, the arc of the curved bump is 180° or less.

[0039] The hook 3 may be attached to the slider body 2 by its own structure, or it may be attached to the slider body 2 by the spring cover 4.

[0040] In embodiments of the hidden zipper lock slider, which further includes a spring cover 4, the spring cover 4 is connected to the slider body 2 so that the hook 3 can be pressed against the slider body 2.

[0041] As shown in Figure 3, the slider body 2, pull handle 1, hook 3, and spring cover 4 are provided in that order.

[0042] The spring cover 4 is provided with a crimping section, which applies pressure to the hook 3 to drive it in the direction of insertion into the element, thereby reducing the oscillation of the pull handle 1 around the axis of the first horizontal rod 11 when stationary or rotating. The force applied to the hook 3 from the crimping section is directed toward the lower surface of the slider body 2.

[0043] When the pull handle 1 rotates, the hook 3 is lifted, and the crimped portion of the spring cover 4 is also lifted, fixing the spring cover 4 to the slider body 2. As a result, the crimped portion generates pressure that pushes down the hook 3, and the hook 3 transmits this pressure to the first horizontal rod 11, increasing the rotational damping of the pull handle 1 and reducing the oscillation of the pull handle 1 around the axis of the first horizontal rod 11 when it rotates.

[0044] The pull handle 1 comes to a stop before reversing, and after the spring cover 4 is attached to the slider body 2, the crimping portion applies pressure to the hook 3, and the hook 3 transmits this pressure to the first horizontal rod 11, increasing the rotational damping of the pull handle 1 and reducing the oscillation of the pull handle 1 around the axis of the first horizontal rod 11 when it comes to a stop.

[0045] By positioning the crimped portion, the oscillation of the first horizontal rod 11 of the pull tab 1 around its axis due to the user's movement is effectively reduced, thereby avoiding noise caused by the pull tab 1 colliding with the element and improving the effectiveness of using the concealed fastener.

[0046] During the rotation of the pull handle 1, the crimping portion continuously applies pressure to the hook 3, and the force applied from the crimping portion to the hook 3 gradually increases with the rotation of the pull handle 1 before the hook 3 is lifted to its highest position. The hook 3 transmits the pressure to the first horizontal rod 11, which at a certain point presses the bump 111 into the position limiting groove 212, preventing the bump 111 from coming out of the position limiting groove 212 during the rotation of the pull handle 1, thereby improving the stability and reliability of the lock slider.

[0047] In some embodiments of this application, the crimping portion is a spring 41.

[0048] The crimping section constantly applies pressure to the hook 3, and as the pull handle 1 rotates from the front end of the slider body 2 to the rear end of the slider body 2, the pressure from the crimping section allows the hook 3 to be inserted into the element, effectively locking the slider body 2.

[0049] As shown in Figure 8, the spring 41 includes a horizontal segment and an arc-shaped segment, the horizontal segment being able to fit tightly against the hook 3, one end of the arc-shaped segment being connected to the horizontal segment and the other end being connected to the spring cover 4. When the pull handle 1 rotates, the bump 111 pushes the hook 3 into motion, the hook 3 presses against the horizontal segment of the spring 41, the arc-shaped segment deforms, and the arc-shaped segment biases the horizontal segment, causing the horizontal segment to push down the hook 3.

[0050] The arc-shaped segment may have the structure shown in Figure 8, and the recess of the arc-shaped segment may face the space between the horizontal segment and the spring cover 4, or it may be back-to-back with the space between the horizontal segment and the spring cover 4 (not shown).

[0051] As shown in Figure 8, the arc-shaped segment may have only one bend, or it may be a corrugated structure (not shown) having multiple arc-shaped bends.

[0052] As shown in Figure 8, the tip of the hook 3 is not inserted into the element, while its rear end is inserted into the element. In this solution, the crimping portion is provided at the tip of the spring cover 4 and crimps the tip of the hook 3.

[0053] The crimping portion is provided in the middle part (not shown) of the spring cover 4, and the middle part of the hook 3 may be crimped therein, in which case the tip and / or rear end of the hook 3 will fit into the element.

[0054] The spring cover 4 is formed by pressing and bending a single elastic piece of metal. Preferably, the spring cover 4 and the crimping portion are integrally molded.

[0055] In some other embodiments of this application, as shown in Figures 14 and 15, the crimping portion further includes a contact plate 42, which is connected to a spring cover 4 and is capable of contacting the position of the hook 3 corresponding to the bump 111. In this embodiment, the contact plate 42 engages with a spring 41 to crimp the hook 3, and the contact plate 42 and spring 41 simultaneously apply pressure to the hook 3 to reduce the axial swing of the first transverse rod 11 of the pull handle 1 during stationary and rotational processes, and to ensure that the bump 111 always rotates within the position limiting groove 212.

[0056] The position on the spring cover 4 where the contact plate 42 is provided needs to be widened. The contact plate 42 is manufactured by a cutting process at the widened position on the spring cover 4. After cutting is complete, the contact plate 42 is bent toward the hook 3 so that it can contact the hook 3. Additionally, the spring cover 4 has relief grooves formed to allow the contact plate 42 to move.

[0057] The spring 41 and the contact plate 42 are positioned with a gap between them along the length of the spring cover 4.

[0058] The spring cover 4 is fixed and connected to the slider body 2.

[0059] In some embodiments of this application, a projection wall 213 is provided on the nose portion 21 of the slider body 2, and a stepped surface 214 is provided on the projection wall 213 to support the spring cover 4. The projection wall 213 deforms when mechanical pressure is applied, and presses the spring cover 4 against the stepped surface 214. The pressing portion is located below the stepped surface 214 and presses the hook 3 against it.

[0060] Preferably, the front and / or rear ends of the slider body 2 are provided with projection walls 213 to fix the front and / or rear ends of the spring cover 4.

[0061] The nose portion 21 is provided with projection walls 213. Preferably, the projection walls 213 are arranged in pairs along a direction perpendicular to the axial direction of the first transverse rod 11.

[0062] As shown in Figure 4, a first projection wall 213 is provided at the tip of the nose portion 21, and a second projection wall 213 is provided at the rear end of the nose portion 21. When mechanical pressure is applied, the first projection wall 213 deforms to fix the tip of the spring cover 4 to the stepped surface 214, and when mechanical pressure is applied, the second projection wall 213 deforms to fix the rear end of the spring cover 4 to the stepped surface 214.

[0063] In order to reduce the mounting accuracy of the spring cover 4 at the nose portion 21, the nose portion 21 is provided with a first position limiting portion, and the spring cover 4 is provided with a second position limiting portion. The first position limiting portion and the second position limiting portion engage with each other to restrict the movement of the spring cover 4 along a direction perpendicular to the axial direction of the first transverse rod 11.

[0064] The nose portion 21 is provided with at least one first position limiting portion, and the spring cover 4 is provided with at least one second position limiting portion, with the positions of the second position limiting portion and the first position limiting portion corresponding to each other and the number of such portions being equal.

[0065] In some embodiments of this application, the first position limiting portion is a position limiting projection and / or a position limiting groove, and the second position limiting portion is a position limiting groove and / or a position limiting projection, specifically, the first position limiting portion is a position limiting projection, the second position limiting portion is a position limiting groove, the first position limiting portion is a position limiting groove, and the second position limiting portion is a position limiting projection.

[0066] If the nose portion 21 is provided with at least two first position restricting portions, all of the first position restricting portions may be position restricting grooves or position restricting projections, or some of the first position restricting portions may be position restricting grooves and other parts of the first position restricting portions may be position restricting projections.

[0067] As shown in Figure 5, a first position limiting groove is provided at the tip of the nose portion 21, a first position limiting projection is provided at the rear end of the nose portion 21, a second position limiting projection is provided at the tip of the spring cover 4, and a second position limiting groove is provided at the rear end of the spring cover 4. During installation, the tip of the nose portion 21 is engaged with the second position limiting projection of the spring cover 4 by the first position limiting groove, and the first position limiting projection at the rear end of the nose portion 21 is engaged with the second position limiting groove of the spring cover 4 by the first position limiting groove, thereby achieving position limiting of the spring cover 4 along a direction perpendicular to the axial direction of the first transverse rod 11.

[0068] As shown in Figures 3 and 8, the spring cover 4 is provided with a bend, which increases the distance between the spring cover 4 and the hook 3 toward the hook 3, creating a clearance space and ensuring that the hook 3 is pushed up to its highest point by the bump 111, thereby reducing interference with the reversal of the pull handle 1.

[0069] Hook 3 is a U-shaped hook, which includes a rear vertical rod, a second transverse rod, and a front vertical rod, with the rear vertical rod and the front vertical rod located at both ends of the second transverse rod in the longitudinal direction. In this solution, the length of the rear vertical rod is greater than that of the front vertical rod, the rear vertical rod is insertable into the element, the front vertical rod is not inserted into the element, and the position of the second transverse rod that approaches the front vertical rod engages with the crimping portion of the spring cover 4, so that when the bump 111 pushes hook 3, the rear vertical rod and the second transverse rod are pushed and lifted, and the rear vertical rod is pulled out from the element.

[0070] As the bump 111 pushes, the rear vertical rod is lifted, and at this time, the height of the connection point between the rear vertical rod and the second horizontal rod is higher than the height of other positions on the hook 3. In order to prevent the connection point between the rear vertical rod and the second horizontal rod from contacting the spring cover 4, in this application, an oblique rod is provided at the connection point between the rear vertical rod and the second horizontal rod, that is, the oblique rod connects the rear vertical rod and the second horizontal rod, and the oblique rod is inclined from the second horizontal rod toward the lower surface of the slider body 2, and by lowering the height of this position, the spring cover 4 is prevented from obstructing the movement of the hook 3 and does not affect the reversal of the pull handle 1.

[0071] Hook 3 is formed by pressing a single piece of hard metal with a certain elasticity so that it can be bent.

[0072] As shown in Figure 9, the second horizontal rod includes a first straight segment, an inclined segment, and a second straight segment connected to each other. The first straight segment is connected to the tip vertical rod, the second straight segment is connected to the inclined rod, the inclined segment is located between the first and second straight segments, and there is a height difference between the first and second straight segments, with the second straight segment being separated from the lower surface of the slider body 2 relative to the first straight segment.

[0073] Hook 3 is attached to the nose portion 21 of the slider body 2, a hook tip locking groove 215 is made at the tip of the nose portion 21, and a hook hole 216 is made at the rear end of the nose portion 21, the hook hole 216 is in communication with the cavity of the slider body 2, the rear end vertical rod of hook 3 is inserted into the element through the hook hole 216, and the tip vertical rod of hook 3 is inserted into the hook tip locking groove 215. After the pull handle 1 is attached to the nose portion 21, the hinge connection portion of the first horizontal rod 11 of the pull handle 1 protrudes from the hinge connection groove 211, the first straight segment can be crimped to the tip of the nose portion 21, and the second straight segment can be crimped to the hinge connection portion protruding from the hinge connection groove 211.

[0074] To further optimize the above technical proposal, a locking groove for fitting the hook 3 is provided in the first horizontal rod 11, the width of which is close to the width of the hook 3, and the locking groove is engaged with the hook 3 so as to restrict its position, thereby reducing the swing of the pull handle 1 along the axial direction of the first horizontal rod 11 during the reversal process. In this embodiment, the locking groove is engaged with the hook 3 so as to restrict its position, and the bump 111 is engaged with the position restriction groove 212 so as to restrict its position, thereby effectively restricting the position of the first horizontal rod 11 and reducing the swing of the pull handle 1 along the axial direction of the first horizontal rod 11 during the reversal process.

[0075] Preferably, the locking groove and the bump 111 are positioned on both sides in the axial direction of the first transverse rod 11 so as to face each other.

[0076] As shown in Figure 6, a bend is provided in the middle of the pull handle 1, so that when the pull handle 1 is positioned at the tip of the slider body 2, the height of the rear end of the pull handle 1 is lower than the height of the tip of the pull handle 1, thereby reducing the distance between the pull handle 1 and the element when it is stationary.

[0077] In the lock slider for a concealed fastener disclosed in this application, the structure of the pull tab 1 and the slider body 2 is modified to improve product stability and user experience, ensuring that the pull tab 1 does not wobble, the appearance of the slider is not significantly altered, the size of the slider is not excessively large, the structure is simple, and the connection of each component is achieved by a mechanical pressure method, making it convenient for installation and manufacturing.

[0078] The foregoing description is not limiting to this application, but merely describes preferred embodiments and technical principles used herein. To those skilled in the art, this application may have various modifications and variations. The scope of this application is not limited to technical solutions consisting of specific combinations of the above-described technical features, but should also cover other technical solutions consisting of the above-described technical features or arbitrary combinations thereof, without departing from the concept of the application. For example, technical solutions consisting of substituting the above features with similar functional technical features disclosed (but not limited) in this application. [Explanation of Symbols]

[0079] 1 ···Handle 11 ···First transverse rod 111... Bump 112... Locking groove 2. Slider body 21 ···Nose 211...Hinge connecting groove 212 ···Position restriction groove 213...protruding wall 214...step surface 215... Hook tip locking groove 216 ···Hook hole 3...hooks 4 ···Spring cover 41 ···Spring 42...Abutting plate

Claims

1. A lock slider for a concealed zipper, comprising a pull tab (1), a slider body (2), and a hook (3), A first transverse rod (11) is provided at one end of the pull handle (1), and the first transverse rod (11) includes a hinge connecting portion and a bump (111) protruding from the outer circumferential surface of the hinge connecting portion. The nose portion (21) of the slider body (2) is provided with a hinge connecting groove (211) that is rotatably engaged with the hinge connecting portion and a position limiting groove (212) that is engaged so as to be position-limited by the bump (111). The position limiting groove (212) restricts the movement of the pull handle (1) along the axial direction of the first transverse rod (11). A locking slider for a concealed fastener, characterized in that at least one end of the hook (3) is inserted into an element to lock the slider body (2), the bump (111) is equipped with a touch control unit, and when the pull tab (1) is rotated to form a predetermined angle with the lower surface of the slider body (2), the touch control unit presses the hook (3), causing the hook (3) to detach from the element and releasing the lock on the slider body (2).

2. The lock slider for a concealed fastener according to claim 1, characterized in that the bump (111) is an arc-shaped bump arranged coaxially with the hinge connection portion.

3. The lock slider for a concealed fastener according to claim 1, further comprising a spring cover (4) connected to the slider body (2), wherein the spring cover (4) is provided with a crimping portion capable of applying pressure to the hook (3) so as to drive the hook (3) to move in the direction of insertion into the element.

4. The lock slider for a concealed fastener according to claim 3, wherein the crimping portion is a spring (41), the spring (41) includes a horizontal segment and an arc-shaped segment, the horizontal segment is capable of being in close contact with the hook (3), both ends of the arc-shaped segment are connected to the horizontal segment and the spring cover (4), respectively, and the arc-shaped segment is elastically deformable to bias the horizontal segment.

5. The lock slider for a concealed fastener according to claim 4, wherein the crimping portion further includes a contact plate (42), the contact plate (42) is connected to the spring cover (4) and is capable of contacting a portion of the hook (3) corresponding to the bump (111).

6. A lock slider for a concealed fastener according to any one of claims 3 to 5, characterized in that a projection wall (213) is provided on the nose portion (21) of the slider body (2), a stepped surface (214) is provided on the projection wall (213) to support the spring cover (4), and the projection wall (213) deforms when mechanical pressure is applied, thereby pressing the spring cover (4) against the stepped surface (214).

7. A lock slider for a concealed fastener according to claim 6, characterized in that a first position limiting portion is provided on the nose portion (21) of the slider body (2), a second position limiting portion is provided on the spring cover (4), and the first position limiting portion and the second position limiting portion engage with each other to restrict the movement of the spring cover (4) along a direction perpendicular to the axial direction of the first horizontal rod (11).

8. The lock slider for a concealed fastener according to claim 4, characterized in that the spring cover (4) is provided with a bend, the bend is directed toward the hook (3), and the distance between the spring cover (4) and the hook (3) is increased.

9. The lock slider for a concealed fastener according to claim 8, characterized in that the hook (3) is a U-shaped hook, the rear end vertical rod of the U-shaped hook is insertable into the element, and is connected to the second horizontal rod of the U-shaped hook by an oblique rod, and the oblique rod is inclined from the second horizontal rod toward the lower surface of the slider body (2), thereby preventing the spring cover (4) from obstructing the movement of the hook (3).

10. The lock slider for a concealed fastener according to claim 1, characterized in that the first horizontal rod (11) is provided with a locking groove (112), the hook (3) can be fitted into the locking groove (112), and the locking groove (112) and the bump (111) are arranged on both sides in the axial direction of the first horizontal rod (11) so as to face each other.

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