Zipper assembly and spring puller device thereof

Abstract

The utility model discloses a spring pull head device which comprises a pull head seat and a pull piece and further comprises an elastic piece capable of compressing and connecting the pull piece to the top of the pull head seat, a positioning clamping head is arranged on the outer wall of the front end of the elastic piece in a protruding mode, and a positioning clamping groove is formed in the front end of the pull head seat and connected with the positioning clamping head in a clamped mode. The elastic piece is limited and locked in the thickness direction of the puller base. An anti-disengaging clamping groove is formed in the top of the puller base in a sunken mode, an anti-disengaging clamping tongue inserted into the anti-disengaging clamping groove in an aligned mode is arranged at the bottom of the elastic piece in a protruding mode, and the front end face of the anti-disengaging clamping tongue and the front inner wall of the anti-disengaging clamping groove are in pressing fit so as to limit and lock the elastic piece in the length direction of the puller base. According to the spring puller device, reliable assembly of all the components can be completed without a riveting assembly process, so that the machining quality of the spring puller device is correspondingly improved, and the product consistency is good. The utility model further discloses a zipper assembly applying the spring puller device.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers and their supporting components, in particular to a spring puller device. The utility model also relates to a zipper assembly using the spring puller device. Background Art

[0002] In people's daily life, zippers are a very common operating component that can be opened and closed. Especially in the processing and manufacturing of products in the fields of clothing, shoes, hats, and bags, zippers are generally used as direct operating mechanisms to help put on and take off clothing and hats, or to open and close bags.

[0003] At present, jeans are one of the most mainstream clothing types in the world. In order to optimize the wearing and taking off convenience of jeans in daily wear, the industry usually uses a zipper spring slider on the zipper assembled on the front of jeans, so that the pants can be opened or closed by pulling up or down the zipper spring slider. Accordingly, the quality and performance of the zipper spring slider are directly related to the wearing and taking off function of jeans. Therefore, how to improve the quality and performance of the spring slider and its supporting components are also increasingly gaining widespread attention in the industry.

[0004] At present, the assembly of spring slider components widely used in the industry usually adopts riveting process as the core assembly method. Specifically, the spring piece with elastic deformation ability is riveted and assembled with the body of the slider. Accordingly, before the riveting operation is carried out, the spring piece and the slider must be aligned and pressed by corresponding supporting equipment. The pressing force on the spring piece and the slider in this step will directly affect the relative position of the spring piece and the slider and the final assembly effect.

[0005] However, although the implementation of the above process steps in actual operations at this stage can meet the basic spring pull head component assembly requirements, in actual applications, the processing and assembly of the same product are usually equipped with multiple devices for simultaneous implementation, and the size and force application conditions of the clamping force applied by different devices will be different, which leads to differences in the final production and processing effects of the same product. Therefore, it is difficult to ensure the consistency of similar products, which has an adverse impact on the batch production and processing of related products.

[0006] In view of this, how to avoid the adverse effects of the existing riveting assembly process on the assembly of the components of the spring pull head and ensure the product processing quality and product consistency of the spring pull head device is an important technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0007] The purpose of the utility model is to provide a spring pull head device, which can complete the reliable assembly of various components without the need for a riveting assembly process, thereby avoiding the adverse effects of the existing riveting assembly process on the assembly of the components of the spring pull head, thereby improving the processing quality of the spring pull head device and improving the product consistency. Another purpose of the utility model is to provide a zipper assembly using the above-mentioned spring pull head device.

[0008] In order to solve the above technical problems, the utility model provides a spring pull head device, comprising a pull head seat movably arranged on the chain and a pull tab linked to the pull head seat, the pull head seat is buckled with a spring sheet that can press the pull tab to be connected to the top of the pull head seat, the interior of the pull head seat has a separation and combination cavity that can accommodate the chain, the front end portion of the pull head seat is symmetrically provided with a chain separation opening for two chains to pass through respectively and one by one along its width direction, the rear end portion of the pull head seat has a chain combination opening for the two chains after merging to pass through together, the chain separation opening and the chain combination opening are respectively communicated with the separation and combination cavity, a positioning card head is protruding on the outer wall of the front end portion of the spring sheet, and the front end portion of the pull head seat has a positioning card slot, and the positioning card slot is card-engaged with the positioning card head to form a limit lock for the spring sheet along the thickness direction of the pull head seat;

[0009] The top of the slider seat has an anti-dropout groove recessed along its thickness direction, and the bottom of the spring sheet is protruding with an anti-dropout tongue that can be inserted into the anti-dropout groove, and the front end surface of the anti-dropout tongue is pressed tightly against the front inner wall of the anti-dropout groove to form a limit lock for the spring sheet along the length direction of the slider seat.

[0010] Preferably, the spring sheet comprises a positioning section, a pressing section and a locking section which are sequentially connected from front to back along the length direction thereof, the positioning section extends along the thickness direction of the slider seat, and the positioning clamp is protrudingly arranged on the side wall of the positioning section;

[0011] The pressing section extends along the length direction of the slider seat and is arranged above the slider seat, and the anti-dropping tongue is located at the bottom of the pressing section;

[0012] The locking section extends along the thickness direction of the slider seat, and a locking tooth is protruding from the bottom of the locking section and can be engaged and matched with the chain teeth on the chain along the length direction of the chain.

[0013] Preferably, the assembly end of the pull tab has a linkage rod extending along its width direction, and a linkage hole for the spring sheet to penetrate is penetrated through the middle of the pull tab near its assembly end along its thickness direction;

[0014] The pressing section is gap-matched with the slider seat to form a linkage gap for the linkage rod to be inserted, and the linkage gap is located at the rear side of the anti-dropping tongue along the length direction of the slider seat;

[0015] The bottom surface of the pressing section and the top surface of the slider seat are both pressed tightly against the outer wall of the linkage rod, the axis of the linkage rod extends along the width direction of the slider seat, and the pull tab can rotate around the axis of the linkage rod based on the linkage rod, and the dimension of the linkage rod along the thickness direction of the pull tab is smaller than the dimension of the linkage rod along the length direction of the pull tab.

[0016] Preferably, the top of the slider seat is penetrated along its thickness direction with a locking cavity connected to the separation and combination cavity, and the locking tooth can penetrate the locking cavity from top to bottom along the thickness direction of the slider seat and extend into the separation and combination cavity so as to be adapted to the chain card connection located in the separation and combination cavity.

[0017] Preferably, an anti-dropout socket is protrudingly provided on the top surface of the slider seat, an anti-dropout socket is provided at the junction of the pressing section and the locking section for inserting the anti-dropout socket, an anti-dropout platform is protrudingly provided on the rear end surface of the anti-dropout socket, the bottom inner wall of the anti-dropout hole is located below the anti-dropout platform, and the anti-dropout platform can be abutted against the bottom inner wall of the anti-dropout hole.

[0018] Preferably, the pressing section is in an arch shape with a middle portion bulging in a direction away from the slider seat.

[0019] Preferably, a guide boss is provided at the front end of the slider seat, and the guide boss is located between the two chain splitting openings along the width direction of the slider seat;

[0020] The front end surface of the guide boss smoothly transitions from top to bottom and gradually protrudes forward, and the front end lower edge of the guide boss protrudes from the front end surface of the slider seat along the length direction of the slider seat to form the positioning groove at the position where the guide boss cooperates with the front end surface of the slider seat below the guide boss;

[0021] The positioning clamp is protrudingly arranged on the side wall of the positioning section facing the slider seat along the length direction of the slider seat, and the rear end surface of the positioning clamp smoothly transitions from bottom to top and gradually protrudes backwards.

[0022] Preferably, the front end portion of the slider seat is provided with two guide guard plates protruding along its length direction, the guide guard plates extend along the thickness direction of the slider seat, and the two guide guard plates are symmetrically arranged and gap-matched along the width direction of the slider seat to form a guide gap for the positioning section to be inserted from top to bottom, and the width of the guide gap decreases from the two ends to the middle along the thickness direction of the slider seat.

[0023] Preferably, the front end surface of the anti-dropping tongue smoothly transitions from top to bottom and gradually protrudes forward.

[0024] The utility model also provides a zipper assembly, comprising two chains arranged symmetrically and in parallel, and also comprising a spring puller device adapted to the chains, wherein the spring puller device is the spring puller device as described in any one of the above items.

[0025] Compared with the above-mentioned background technology, the spring slider device provided by the utility model has the following components: during the assembly process, after the assembly part of the pull tab is arranged correspondingly between the spring tab and the slider seat, the positioning card head at the front end of the spring tab is aligned and snapped into the positioning slot at the front end of the slider seat, and the anti-dropping tongue at the middle of the spring tab is aligned and snapped into the anti-dropping slot at the middle of the slider seat, thereby forming a two-point clamping limit between the spring tab and the slider seat, thereby respectively realizing reliable pre-positioning and appropriate limit locking between the spring tab and the slider seat along the thickness direction and length direction of the slider seat, thereby ensuring the alignment and assembly accuracy between the spring tab and the slider seat, and subsequently only a slight riveting operation is required to complete the reliable assembly between the spring tab and the slider seat, and simultaneously realize the reliable linkage connection between the pull tab and the slider seat, thereby realizing the overall assembly of the spring slider device. Since the overall assembly process of the spring pull head device only requires the corresponding snap-fit ​​adapter connections between the pull head seat and the spring sheet at two positions to complete the pre-positioning of the component assembly, the assembly difficulty of the spring pull head device is greatly reduced, and the component assembly efficiency and assembly accuracy are improved. In the assembly process, the component positioning is first adopted to ensure the assembly accuracy, and then the component assembly is completed by combining a slight riveting process, thereby effectively avoiding the adverse effects of the existing riveting assembly process on the component assembly of the spring pull head, ensuring the product processing quality of the spring pull head device, and eliminating the problem of poor product consistency in the prior art caused by the use of different equipment to directly press and rivet the spring pull head device, so that the product consistency of the spring pull head device can be optimized accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A front perspective isometric view of an assembly structure of a spring puller device provided in a specific embodiment of the utility model;

[0028] Figure 2 for Figure 1A side view of the assembly structure in which the length direction of the middle pull tab is parallel to the length direction of the pull head seat;

[0029] Figure 3 for Figure 2 A cross-sectional view of

[0030] Figure 4 for Figure 1 A side cross-sectional view of the component structure with the middle pull tab tilted upward;

[0031] Figure 5 for Figure 1 Axonometric view of the center pull head seat;

[0032] Figure 6 for Figure 1 Axonometric view of the center shrapnel from the front perspective;

[0033] Figure 7 for Figure 6 Axonometric view from the rear;

[0034] Figure 8 for Figure 1 Exploded diagram of component structure;

[0035] Fig. 9 for Figure 8 Schematic diagram of the matching structure between the middle spring piece and the front end of the slider seat;

[0036] Fig.10 This is a schematic diagram of the matching structure of the spring piece of the spring slider device and the front end of the slider seat provided in another specific embodiment of the utility model.

[0037] in:

[0038] 11-slider seat; 111-opening and closing cavity; 112-chain opening; 113-chain closing opening; 114-positioning slot; 115-anti-dropping slot; 116-linkage gap; 117-locking cavity; 118-guide boss; 119-guide guard plate; 110-guide gap;

[0039] 12-pull tab; 121-linking rod; 122-linking hole;

[0040] 13-spring piece; 131-positioning clamp head; 132-anti-dropping clamp tongue; 133-positioning section; 134-pressing section; 135-locking section; 136-locking tooth; 137-anti-dropping clamp hole;

[0041] 14-anti-drop card holder; 141-anti-drop card table;

[0042] 15- Anti-slip limiter. DETAILED DESCRIPTION

[0043] The core of the utility model is to provide a spring pull head device, which can complete the reliable assembly of various components without the riveting assembly process, thereby avoiding the adverse effects of the existing riveting assembly process on the component assembly of the spring pull head, thereby improving the processing quality of the spring pull head device accordingly and improving the product consistency; in addition, a zipper assembly using the above-mentioned spring pull head device is also provided.

[0044] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] Please refer to Figures 1 to 9 .

[0046] In a specific embodiment, the spring slider device provided by the utility model includes a slider seat 11 movably arranged on the chain and a pull tab 12 linked to the slider seat 11. The slider seat 11 is buckled with a spring plate 13 that can press the pull tab 12 and connect it to the top of the slider seat 11. The interior of the slider seat 11 has a separation and combination cavity 111 that can accommodate the chain. The front end of the slider seat 11 is symmetrically provided with chain separation openings 112 along its width direction for two chains to pass through one by one. The rear end of the slider seat 11 has a chain combination opening 113 for the two chains to pass through together after being merged. The chain separation opening 112 and the chain combination opening 113 are respectively connected to the separation and combination cavity 111.

[0047] A positioning clamp 131 is protruded from the outer wall of the front end of the spring piece 13 , and a positioning slot 114 is formed at the front end of the slider seat 11 . The positioning slot 114 is engaged and adapted with the positioning clamp 131 to form a limit lock for the spring piece 13 along the thickness direction of the slider seat 11 .

[0048] The top of the slider seat 11 has an anti-dropout slot 115 recessed along its thickness direction, and the bottom of the spring sheet 13 is protruding with an anti-dropout tongue 132 that can be inserted into the anti-dropout slot 115. The front end surface of the anti-dropout tongue 132 is pressed tightly against the front inner wall of the anti-dropout slot 115 to form a limit lock for the spring sheet 13 along the length direction of the slider seat 11.

[0049] The spring pull head device is assembled in the process of the component assembly, after the assembly part of the pull tab 12 is arranged between the spring piece 13 and the pull head seat 11, the positioning clamping head 131 at the front end of the spring piece 13 is aligned and inserted into the positioning clamping groove 114 at the front end of the pull head seat 11, and the anti-dropping clamping tongue 132 at the middle part of the spring piece 13 is aligned and inserted into the anti-dropping clamping groove 115 at the middle part of the pull head seat 11, thereby forming a two-point clamping limit between the spring piece 13 and the pull head seat 11, thereby respectively realizing the reliable pre-positioning and appropriate limit locking between the spring piece 13 and the pull head seat 11 along the thickness direction and the length direction of the pull head seat 11, thereby ensuring the alignment and assembly accuracy between the spring piece 13 and the pull head seat 11, and then combined with the subsequent slight riveting operation, the reliable assembly between the spring piece and the pull head seat can be completed, and the reliable linkage connection between the pull piece 12 and the pull head seat 11 is simultaneously realized, thereby realizing the overall assembly of the spring pull head device. Since the overall assembly process of the spring pull head device only requires the corresponding snap-fit ​​adaptation connections between the pull head seat 11 and the spring piece 13 at two positions to complete the pre-positioning assembly of the component, the assembly difficulty of the spring pull head device is greatly reduced, and the component assembly efficiency and assembly accuracy are improved. In the assembly process, the component positioning is first adopted to ensure the assembly accuracy, and then the component assembly is completed by combining a slight riveting process, thereby effectively avoiding the adverse effects of the existing riveting assembly process on the component assembly of the spring pull head, ensuring the product processing quality of the spring pull head device, and eliminating the problem of poor product consistency caused by the direct riveting assembly of the spring pull head device with different equipment in the prior art, so that the product consistency of the spring pull head device can be optimized accordingly.

[0050] It is not difficult to understand that the determination of the "front" and "rear" directions mentioned in this scheme is based on the length direction of the slider seat 11, that is, based on the reciprocating direction of the slider seat 11 along the chain, which can also be understood as the length direction of the chain as a reference. Referring to the drawings of this scheme, generally, when the slider seat 11 moves along the length direction of the chain to close the two chains, the end facing the forward direction is the front end of the slider seat 11, that is, the end where the chain opening 112 is located; correspondingly, the end opposite to the front end in the length direction of the slider seat 11 is the rear end of the slider seat 11, that is, the end where the chain closing opening 113 is located.

[0051] Correspondingly, the thickness direction of the slider seat 11 refers to the height direction of the slider seat 11, that is, the direction perpendicular to the top surface of the slider seat 11. The description of the thickness direction in the rest of this article can be understood by referring to the corresponding description here, and no further description is given. Similarly, the description of the thickness direction of other components is also the height direction of the described components.

[0052] With this plan Figure 2 For example, Figure 2In the paper direction, the left end of the slider seat 11 is the front end of the slider seat 11, and the right end of the slider seat 11 is the rear end of the slider seat 11. Accordingly, Figure 2 The pull tab 12 shown in the figure is now in a position where it is arranged in close contact with the top of the slider seat 11, and the length direction of the pull tab 12 is parallel to the length direction of the slider seat 11. The relative positions of the components in the remaining figures of this scheme can be understood by reference to this, and no further description is given.

[0053] Generally, an anti-dropout limiting platform 15 can be protruded from the top surface of the slider seat 11, and the anti-dropout limiting platform 15 is arranged at the front side of the notch of the anti-dropout slot 115, and the rear end surface of the anti-dropout limiting platform 15 can be coplanar with the front inner wall of the anti-dropout slot 115. The anti-dropout limiting platform 15 is used to abut and adapt with the anti-dropout latch 132, so as to extend the effective extension range of the front inner wall of the anti-dropout slot 115 in the thickness direction of the slider seat 11, so as to further increase the abutment and limiting height of the anti-dropout latch 132, further prevent the anti-dropout latch 132 from falling out of the anti-dropout slot 115, and can form a certain structural support and structural guidance for the anti-dropout latch 132 during the process of the anti-dropout latch 132 being reset and inserted into the limiting slot.

[0054] Furthermore, the spring piece 13 includes a positioning section 133, a pressing section 134 and a locking section 135 which are connected in sequence from front to back along the length direction thereof. The positioning section 133 extends along the thickness direction of the slider seat 11, and the positioning clamp 131 is protrudingly arranged on the side wall of the positioning section 133; the pressing section 134 extends along the length direction of the slider seat 11 and is arranged above the slider seat 11, and the anti-dropping clamp 132 is located at the bottom of the pressing section 134; the locking section 135 extends along the thickness direction of the slider seat 11, and the bottom of the locking section 135 is protrudingly provided with a locking tooth 136 which can be clamped and adapted with the chain teeth on the chain along the length direction of the chain. The joints of the positioning section 133 and the pressing section 134 and the joints of the pressing section 134 and the locking section 135 are smoothly transitioned and connected, thereby further optimizing the overall structural strength of the spring piece 13. After the spring puller device and the chain are assembled in place, during the actual operation of the zipper assembly, if the user drives the spring puller device to move to an appropriate position along the length direction of the chain by pulling the pull tab 12, the locking tooth 136 can be aligned and engaged with the sprocket teeth of the chain, thereby utilizing the engagement between the locking tooth 136 and the sprocket teeth to lock the current relative position of the spring puller device and the chain, so as to prevent the spring puller device from continuing to move along the length direction of the chain, thereby meeting the wearing and use requirements of the clothing equipped with the zipper assembly, avoiding the abnormal opening of the zipper assembly caused by the free movement of the spring puller device along the length direction of the chain during the wearing of the clothing, and avoiding the clothing from accidentally loosening or losing its shape from the wearer.

[0055] Specifically, the assembly end of the pull tab 12 has a linkage rod 121 extending along its width direction, and the middle part of the pull tab 12 near its assembly end is penetrated along its thickness direction with a linkage hole 122 for the spring sheet 13 to penetrate; the pressing section 134 is gap-matched with the slider seat 11 to form a linkage gap 116 for the linkage rod 121 to be inserted, and the linkage gap 116 is located behind the anti-dropping tongue 132 along the length direction of the slider seat 11. By aligning and inserting the linkage rod 121 into the linkage gap 116, reliable linkage assembly between the pull tab 12 and the slider seat 11 is achieved, so that the user can pull the pull tab 12 to drive the slider seat 11 to move synchronously with the pull tab 12 along the length direction of the chain, and correspondingly drive the two chains to buckle or split until the spring slider device moves to the target position.

[0056] The bottom surface of the pressing section 134 and the top surface of the slider seat 11 are both pressed tightly against the outer wall of the linkage rod 121, the axis of the linkage rod 121 extends along the width direction of the slider seat 11, and the pull tab 12 can rotate around the axis of the linkage rod 121 based on the linkage rod 121, and the dimension of the linkage rod 121 along the thickness direction of the pull tab 12 is smaller than the dimension of the linkage rod 121 along the length direction of the pull tab 12.

[0057] After the pull tab 12 and the slider seat 11 are assembled in place, the linkage rod 121 is pressed and embedded in the linkage gap 116. When there is no need to open or close the zipper assembly, the pull tab 12 can be in a state where its own length direction is parallel to the length direction of the slider seat 11. At this time, the size of the linkage gap 116 along the thickness direction of the slider seat 11 corresponds to the size of the linkage rod 121 along the thickness direction of the pull tab 12, and at this time, the locking tooth 136 is reliably engaged with the chain to prevent the spring slider device from moving along the length direction of the chain; when the zipper assembly needs to be opened or closed, the pull tab 12 is appropriately rotated upward with the axis of the linkage rod 121 as the axis, so that the pull tab 12 is appropriately tilted upward with the linkage rod 121 as the reference. At this time, due to the fit between the bottom surface of the spring sheet 13 and the top surface of the slider seat 11, The mating surfaces are gradually changed from the two end surfaces in the thickness direction of the original linkage rod 121 to the two end surfaces in the length direction of the linkage rod 121. Therefore, the gap size of the linkage gap 116 in the thickness direction of the slider seat 11 gradually increases, and the distance between the bottom surface of the spring sheet 13 and the top surface of the slider seat 11 also increases accordingly, thereby driving the spring sheet 13 to synchronously tilt up along the thickness direction of the slider seat 11, thereby driving the locking teeth 136 located on the locking section 135 to synchronously tilt up along with the spring sheet 13 until the locking teeth 136 and the chain teeth of the chain are released from the clamping state, thereby allowing the spring slider device to restore the ability to move along the length direction of the chain, so that the operator can drive the slider seat 11 to move synchronously by pulling the pull tab 12, thereby adjusting the adaptation position of the spring slider device on the chain and realizing the opening and closing of the chain assembly accordingly.

[0058] After the chain assembly is readjusted into place through the above-mentioned operation process, it is only necessary to rotate the pull tab 12 appropriately, and the pull tab 12 can be driven by the rebound force of the spring sheet 13 to quickly restore its own length direction to a state parallel to the length direction of the slider seat 11, so that the pull tab 12 can be re-arranged in a forward fit on the top surface of the slider seat 11, and the locking tooth 136 can be re-engaged with the chain tooth of the chain at the current corresponding position, so as to restore the position locking of the spring slider device and prevent the spring slider device from continuing to move along the length direction of the chain.

[0059] On this basis, the top of the slider seat 11 is penetrated along the thickness direction thereof with a locking cavity 117 which is connected to the separation and combination cavity 111, and the locking tooth 136 can penetrate the locking cavity 117 from top to bottom along the thickness direction of the slider seat 11 and extend into the separation and combination cavity 111, so as to be engaged and adapted with the chain located in the separation and combination cavity 111. The locking cavity 117 can provide sufficient movement space for the locking tooth 136, and form a certain structural limit for the reciprocating movement of the locking tooth 136 along the thickness direction of the slider seat 11, so that the alignment and disengagement action process between the locking tooth 136 and the chain teeth of the chain is smoother and more efficient, and the alignment and adaptation is more accurate and reliable.

[0060] More specifically, the top surface of the slider seat 11 is provided with an anti-dropout clamping seat 14 protrudingly, and the joint of the pressing section 134 and the locking section 135 is provided with an anti-dropout clamping hole 137 for inserting the anti-dropout clamping seat 14, and the rear end surface of the anti-dropout clamping seat 14 is provided with an anti-dropout clamping platform 141 protrudingly, and the bottom inner wall of the anti-dropout clamping hole 137 is located below the anti-dropout clamping platform 141, and the anti-dropout clamping platform 141 can abut against the bottom inner wall of the anti-dropout clamping hole 137. The anti-dropout clamping platform 141 can form a reliable limit for the upper limit position of the pressing section 134 and the locking section 135, so as to prevent the spring piece 13 from being disengaged from the assembly position at the top of the slider seat 11 due to excessive tilting when the spring piece 13 is driven by the tilted pull tab 12 to tilt synchronously, thereby ensuring the assembly structure reliability and working condition tolerance of the spring piece 13 and the slider seat 11, and improving the assembly strength of the pull tab 12 and the slider seat 11 accordingly.

[0061] It should be understood that the expression of "protruding arrangement" mentioned in this scheme refers to the main extension surface protruding from the corresponding surface or wall. For example, the anti-slip holder 14 mentioned above is protruding from the top surface of the slider seat 11, which means that the anti-slip holder 14 is extended on the top surface of the slider seat 11 to the top of the top surface to achieve a protruding structural layout. Correspondingly, the structural arrangement protruding from the bottom surface in this scheme means extending toward the bottom of the bottom surface to achieve a protruding structural layout; the structural arrangement protruding from the front wall means extending toward the front of the front wall to achieve a protruding structural layout; the structural arrangement protruding from the rear wall means extending toward the rear of the rear wall to achieve a protruding structural layout. Unless otherwise specified, the expressions of the protruding arrangement in the rest of this article can be understood by referring to this and will not be repeated. Of course, the wording of some contents may be different, but the corresponding orientation reference and the understanding of the structural expression are basically the same, and can be understood by reference.

[0062] Generally, the pressing section 134 is an arch with the middle part protruding in the direction away from the slider seat 11. The arch structure can further optimize the stress tolerance and structural strength of the pressing section 134, so that when the flipped and tilted pull tab 12 drives the spring sheet 13 to tilt upward synchronously, the pressing section 134 can stably withstand the corresponding structural stress, and when the pull tab 12 is reset, the pressing section 134 can quickly rebound and reset, thereby further optimizing the operating efficiency and convenience of the spring slider device.

[0063] It is not difficult to understand that in actual applications, the spring sheet 13 is an integrally formed part, and the anti-dropping tongue 132 and other supporting parts are also integrally formed with the main structure of the spring sheet 13. The spring sheet 13 should be made of metal or non-metal parts with good elastic deformation ability, so that the elastic deformation of the spring sheet 13 can alleviate the structural impact when the pull tab 12 is tilted upward, and the elastic reset force of the spring sheet 13 when it rebounds can be used to assist in driving the pull tab 12 to reset. The "spring" mentioned in the spring pull head device in the theme name of this scheme also refers to the structural buffering and elastic reset effect correspondingly achieved by the elastic deformation ability of the spring sheet 13 itself.

[0064] In addition, after being assembled in place, the linkage gap 116 is located between the anti-slip tongue 132 and the anti-slip seat 14 along the length direction of the slider seat 11, so that the rear end face of the anti-slip tongue 132 and the front end face of the anti-slip seat 14 form a front and rear limiting structure for the linkage rod 121, and combined with the upper and lower limiting structures for the linkage rod 121 formed by the bottom surface of the spring piece 13 and the top surface of the slider seat 11, four-way reliable limiting of the linkage rod 121 is achieved, and the extreme position of the linkage gap 116 in the length direction and thickness direction of the slider seat 11 is guaranteed.

[0065] On the other hand, a guide boss 118 is provided at the front end of the slider seat 11, and the guide boss 118 is located between the two chain openings 112 along the width direction of the slider seat 11; the front end surface of the guide boss 118 smoothly transitions from top to bottom and gradually protrudes forward, and the front end lower edge of the guide boss 118 protrudes from the front end surface of the slider seat 11 along the length direction of the slider seat 11 to form a positioning groove 114 at the position where the guide boss 118 cooperates with the front end surface of the slider seat 11 below; the positioning clamp 131 protrudes along the length direction of the slider seat 11 and is arranged on the positioning section 133 on the side wall of the slider seat 11, and the rear end surface of the positioning clamp 131 smoothly transitions from bottom to top and gradually protrudes backward. When the spring piece 13 is aligned and assembled with the slider seat 11, the positioning section 133 can be pressed downward from the top front end of the slider seat 11. During this process, the positioning clamp head 131 is always in contact with the front end surface of the guide boss 118, so as to form a directional guide for the positioning clamp head 131 by utilizing the structure that the front end surface of the guide boss 118 gradually protrudes from top to bottom, so that the positioning clamp head 131 and the positioning section 133 where it is located gradually rise forward until the positioning clamp head 131 moves down to below the bottom edge of the front end surface of the guide boss 118. The front end surface of the guide boss 118 is out of contact with the positioning clamp 131. At this time, the positioning clamp 131 is no longer limited by the front end surface of the guide boss 118. Therefore, the positioning segment 133 can be elastically reset in the direction of the slider seat 11, thereby driving the positioning clamp 131 to be synchronously reset and approach the slider seat 11 until the positioning clamp 131 is aligned and embedded in the positioning groove 114, thereby realizing the precise alignment assembly of the positioning clamp 131 and the positioning groove 114, and correspondingly completing the reliable alignment assembly and structural limitation between the front end of the spring piece 13 and the front end of the slider seat 11.

[0066] After being assembled in place, the front end of the spring piece 13 and the front end of the slider seat 11 are stably assembled and limited along the length direction of the slider seat 11 by means of the clamping adaptation of the positioning slot 114 and the positioning clamp head 131 along the length direction of the slider seat 11; at the same time, the front end of the spring piece 13 and the front end of the slider seat 11 are stably assembled and limited along the thickness direction of the slider seat 11 by means of the clamping adaptation of the positioning slot 114 and the positioning clamp head 131 along the thickness direction of the slider seat 11. In addition, the front end surface of the guide boss 118 is used to form a reliable guide for the positioning clamp head 131 during the downward assembly process, which effectively ensures the assembly alignment accuracy and assembly efficiency of the positioning clamp head 131 and the positioning slot 114.

[0067] In addition, two guide guard plates 119 are protruding from the front end of the slider seat 11 along its length direction. The guide guard plates 119 extend along the thickness direction of the slider seat 11, and the two guide guard plates 119 are symmetrically arranged and gap-matched along the width direction of the slider seat 11 to form a guide gap 110 for the positioning section 133 to be inserted from top to bottom. The width of the guide gap 110 decreases from both ends to the middle along the thickness direction of the slider seat 11. The relatively arranged guide guard plates 119 can limit the width direction of the positioning section 133, so that the main structure of the positioning section 133 can be ensured to be always in the guide gap 110 during the movement of the positioning section 133 from top to bottom, thereby further ensuring the tracking performance of the positioning clamp 131 in the thickness direction of the slider seat 11, and making the alignment and clamping assembly of the positioning clamp 131 and the positioning slot 114 smoother and more efficient, and the alignment and adaptation more accurate and reliable.

[0068] Please refer to Fig.10 In fact, in actual assembly applications, a boss structure can be protruded from the middle of the guide guard plate 119, so that the boss structures respectively provided on the two guide guard plates 119 can be symmetrically arranged along the width direction of the slider seat 11, and a positioning slot 114 is formed below the boss structure. Correspondingly, the positioning clamp 131 can be respectively protruded on the outer walls of both sides of the positioning section 133 along the width direction of the slider seat 11, thereby utilizing the adaptation effect under the structural layout to achieve the alignment and clamping of the positioning clamp 131 and the positioning slot 114, so that the alignment assembly and reliable limiting of the front end of the spring piece 13 and the front end of the slider seat 11 can also be satisfied.

[0069] In addition, in actual assembly applications, the front end surface of the anti-dropout tongue 132 smoothly transitions from top to bottom and gradually protrudes forward. In this way, the front end surface of the anti-dropout tongue 132 can form a smoothly transitioned inclined structure. When the spring sheet 13 is synchronously tilted upward under the flipping action of the pull tab 12, the anti-dropout tongue 132 moves upward synchronously with the spring sheet 13. In this process, the anti-dropout tongue 132 is gradually pulled out of the anti-dropout slot 115. Due to the inclined structure of the anti-dropout tongue 132, the anti-dropout tongue 132 is pressed by the front inner wall of the anti-dropout slot 115 during the upward withdrawal process, and gradually swings backward to undergo elastic deformation, thereby further increasing the anti-dropout tongue 132. The front end surface of the disengagement tongue 132 and the front inner wall of the anti-disengagement slot 115 are pressed together to increase the resistance to the anti-disengagement tongue 132 continuing to move upward, so as to prevent the anti-disengagement tongue 132 from disengaging from the top of the anti-disengagement slot 115, thereby preventing the spring sheet 13 from excessively warping up and causing the assembly structure between it and the slider seat 11 to fail, thereby ensuring the assembly strength and reliability of the spring sheet 13 and the slider seat 11, and correspondingly ensuring the assembly structure reliability of the pull tab 12 and the slider seat 11, thereby improving the overall assembly strength and structural reliability of the spring slider device.

[0070] In a specific embodiment, the zipper assembly provided by the utility model includes two chains arranged symmetrically and in parallel, and also includes a spring puller device adapted to the chain, and the spring puller device is the spring puller device described above. The spring puller device of the zipper assembly can complete the reliable assembly of various components without the need for a riveting assembly process, thereby avoiding the adverse effects of the existing riveting assembly process on the assembly of the components of the spring puller, thereby improving the processing quality of the spring puller device accordingly, and achieving better product consistency.

[0071] In summary, it can be seen that in the spring slider device provided in the utility model, during the component assembly process, after the assembly part of the pull tab is arranged correspondingly between the spring sheet and the slider seat, the positioning card head at the front end of the spring sheet is aligned and snapped into the positioning slot at the front end of the slider seat, and the anti-dropping tongue at the middle of the spring sheet is aligned and snapped into the anti-dropping slot at the middle of the slider seat, thereby forming a two-point clamping limit between the spring sheet and the slider seat, thereby respectively realizing reliable pre-positioning and appropriate limit locking between the spring sheet and the slider seat along the thickness direction and length direction of the slider seat, thereby ensuring the alignment and assembly accuracy between the spring sheet and the slider seat, and combined with the subsequent light riveting operation, the reliable assembly between the spring sheet and the slider seat can be completed, and the reliable linkage connection between the pull tab and the slider seat is simultaneously realized, thereby realizing the overall assembly of the spring slider device. Since the overall assembly process of the spring pull head device only requires the corresponding snap-fit ​​adapter connections between the pull head seat and the spring sheet at two positions to complete the pre-positioning of the components during assembly, the assembly difficulty of the spring pull head device is greatly reduced, and the component assembly efficiency and assembly accuracy are improved. In the assembly process, the components are first positioned to ensure the assembly accuracy, and then the component assembly is completed in combination with a slight riveting process, thereby effectively avoiding the adverse effects of the existing riveting assembly process on the component assembly of the spring pull head, ensuring the product processing quality of the spring pull head device, and eliminating the problem of poor product consistency in the prior art caused by the use of different equipment to directly press and rivet the spring pull head device, so that the product consistency of the spring pull head device can be optimized accordingly.

[0072] The utility model also provides a zipper assembly, whose spring pull head device can complete the reliable assembly of various components without the need for a riveting assembly process, thereby avoiding the adverse effects of the existing riveting assembly process on the assembly of the spring pull head components, thereby correspondingly improving the processing quality of the spring pull head device and improving product consistency.

[0073] The spring puller device provided by the utility model and the zipper assembly using the spring puller device are introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A spring puller device, comprising a puller seat movably arranged on a chain and a pull tab linked to the puller seat, the puller seat is buckled with a spring sheet capable of pressing the pull tab to be connected to the top of the puller seat, the puller seat has a separation and combination cavity capable of accommodating the chain, the front end of the puller seat is symmetrically provided with a chain separation opening for two chains to pass through one by one along its width direction, the rear end of the puller seat has a chain combination opening for the two chains to pass through together after being merged, the chain separation opening and the chain combination opening are respectively connected to the separation and combination cavity, characterized in that A positioning card is protruding from the outer wall of the front end of the spring sheet, and the front end of the slider seat has a positioning card slot, and the positioning card slot is engaged and adapted with the positioning card slot to form a limit lock for the spring sheet along the thickness direction of the slider seat; The top of the slider seat has an anti-dropout groove recessed along its thickness direction, and the bottom of the spring sheet is protruding with an anti-dropout tongue that can be inserted into the anti-dropout groove, and the front end surface of the anti-dropout tongue is pressed tightly against the front inner wall of the anti-dropout groove to form a limit lock for the spring sheet along the length direction of the slider seat.

2. The spring puller device according to claim 1, characterized in that: The spring sheet includes a positioning section, a pressing section and a locking section which are sequentially connected from front to back along the length direction thereof, the positioning section extends along the thickness direction of the slider seat, and the positioning clamp is protrudingly arranged on the side wall of the positioning section; The pressing section extends along the length direction of the slider seat and is arranged above the slider seat, and the anti-dropping tongue is located at the bottom of the pressing section; The locking section extends along the thickness direction of the slider seat, and a locking tooth is protruding from the bottom of the locking section and can be engaged and matched with the chain teeth on the chain along the length direction of the chain.

3. The spring puller device according to claim 2, characterized in that: The assembly end of the pull tab has a linkage rod extending along its width direction, and the middle part of the pull tab near its assembly end is penetrated along its thickness direction by a linkage hole for the spring sheet to penetrate; The pressing section is gap-matched with the slider seat to form a linkage gap for the linkage rod to be inserted, and the linkage gap is located at the rear side of the anti-dropping tongue along the length direction of the slider seat; The bottom surface of the pressing section and the top surface of the slider seat are both pressed tightly against the outer wall of the linkage rod, the axis of the linkage rod extends along the width direction of the slider seat, and the pull tab can rotate around the axis of the linkage rod based on the linkage rod, and the dimension of the linkage rod along the thickness direction of the pull tab is smaller than the dimension of the linkage rod along the length direction of the pull tab.

4. The spring puller device according to claim 3, characterized in that: The top of the slider seat is penetrated by a locking cavity connected with the separation and combination cavity along its thickness direction, and the locking tooth can penetrate the locking cavity from top to bottom along the thickness direction of the slider seat and extend into the separation and combination cavity so as to be adapted to the chain in the separation and combination cavity.

5. The spring puller device according to claim 4, characterized in that: An anti-dropout socket is protrudingly provided on the top surface of the slider seat, and an anti-dropout socket is provided at the junction of the pressing section and the locking section for the anti-dropout socket to be inserted into. An anti-dropout platform is protrudingly provided on the rear end surface of the anti-dropout socket, and the bottom inner wall of the anti-dropout hole is located below the anti-dropout platform, and the anti-dropout platform can be abutted against the bottom inner wall of the anti-dropout hole.

6. The spring puller device according to claim 3, characterized in that: The pressing section is in an arch shape with a middle portion protruding in a direction away from the slider seat.

7. The spring puller device according to claim 2, characterized in that: A guide boss is disposed at the front end of the slider seat, and the guide boss is located between the two chain splitting openings along the width direction of the slider seat; The front end surface of the guide boss smoothly transitions from top to bottom and gradually protrudes forward, and the front end lower edge of the guide boss protrudes from the front end surface of the slider seat along the length direction of the slider seat to form the positioning groove at the position where the guide boss cooperates with the front end surface of the slider seat below the guide boss; The positioning clamp is protrudingly arranged on the side wall of the positioning section facing the slider seat along the length direction of the slider seat, and the rear end surface of the positioning clamp smoothly transitions from bottom to top and gradually protrudes backwards.

8. The spring puller device according to claim 2, characterized in that: The front end portion of the slider seat is protruding along its length direction with two guide guard plates, and the guide guard plates extend along the thickness direction of the slider seat, and the two guide guard plates are symmetrically arranged and gap-matched along the width direction of the slider seat to form a guide gap for the positioning section to be inserted from top to bottom, and the width of the guide gap decreases from the two ends to the middle along the thickness direction of the slider seat.

9. The spring puller device according to claim 1, characterized in that: The front end surface of the anti-dropping tongue smoothly transitions from top to bottom and gradually protrudes forward.

10. A zipper assembly, comprising two chains arranged symmetrically and in parallel, and a spring puller device adapted to the chains, characterized in that: The spring slider device is the spring slider device according to any one of claims 1 to 9.

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