A cap for a pull tab

Abstract

The utility model discloses a puller cap cover, including cap cover, elastic sheet, the inside of cap cover is equipped with recess, still include support base, the elastic sheet sets up in the top of support base, and with support base fixed connection, support base sets up in recess, cap cover is composed of iron. Through above -mentioned technical scheme, not only reduced the cost of cap cover production, improved the fatigue degree of elastic sheet and the quality of puller, also realized the cost reduction and benefit increase.

Description

Technical Field

[0001] This utility model relates to the field of zipper pull technology, and in particular to a zipper pull cap. Background Technology

[0002] The self-locking zipper includes a zipper body, a pull tab, an elastic tab, a cap, and a hook. The elastic element is fixed between the cap and the zipper body. When in use, the pull tab is pulled, which in turn moves the hook to lift the hook. The pull tab then pulls the zipper body, which slides on the zipper to open and close the zipper.

[0003] Currently, the common method for installing elastic plates and caps is to place the elastic plate inside the cap and then rivet the two sides of the cap, causing the cap to deform inward in a localized area, thereby limiting the elastic plate. However, due to the small size and light weight of the elastic plate, it may shift in position before riveting due to slight vibrations or handling, causing the recessed part of the cap to push up the elastic plate, thus affecting the assembly quality of the elastic plate and the cap. Utility Model Content

[0004] The main purpose of this utility model is to provide a pull-out cap cover, which aims to improve the assembly quality of the elastic sheet and the cap cover.

[0005] To achieve the above objectives, this utility model proposes a pull tab cap, including a cap and an elastic sheet, wherein the cap has a groove inside;

[0006] It also includes a support base, wherein the elastic sheet is disposed on the top of the support base and is fixedly connected to the support base, and the support base is disposed in a groove;

[0007] The cap is made of iron.

[0008] In one possible implementation, the support base has a clearance groove on the side near the elastic sheet.

[0009] In one possible implementation, limit blocks are fixedly connected to both sides of the top of the support base, and limit grooves are provided on both sides of the elastic sheet, with an opening on one side of each limit groove.

[0010] In one possible implementation, the limiting block has an overall square shape.

[0011] This invention utilizes a support base. During assembly, the operator first places the elastic sheet and the support base together into the groove, then rivets the two sides of the cap, causing the cap to deform inwards partially, thus fixing the elastic sheet and further securing the support base inside the cap. The larger volume of the support base and the increased contact area with the inner wall of the groove make it more stable within the groove, reducing the possibility of shaking and thus lowering the risk of elastic sheet displacement, thereby improving the assembly quality of the cap. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the cap structure in Embodiment 1;

[0014] Figure 2 This is an exploded view of the cap in this embodiment one;

[0015] Figure 3 This is a schematic diagram of the cap structure in Embodiment 2;

[0016] Figure 4 This is a cross-sectional view of the cap after riveting in this second embodiment;

[0017] Figure 5 This is a schematic diagram of the elastic sheet structure in Embodiment 2.

[0018] The following are the symbols and their meanings: 1. Cap; 101. Groove; 102. Limiting block; 2. Elastic sheet; 2021. Limiting groove; 2022. Opening; 203. Support base; 2031. Clearance groove.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Example 1:

[0022] refer to Figure 1-2This utility model proposes a pull tab cap, including a cap 1 and an elastic piece 2. The cap 1 has a groove 101 inside. It also includes a support base 203. The elastic piece 2 is disposed on the top of the support base 203 and is fixedly connected to the support base 203. The support base 203 is disposed in the groove 101. It should be noted that the connection between the elastic piece 2 and the support base 203 can be riveting or other methods. This embodiment does not limit this.

[0023] Meanwhile, the bottom of the support base 203 is also provided with an arc surface that matches the groove 101, so as to increase its contact area with the inner wall of the groove 101, thereby increasing the friction and enhancing the stability of the support base 203 inside the groove 101.

[0024] Secondly, the support base 203 can also be interference-fitted with the inner wall of the groove 101 to ensure that the support base 203 will not shake due to vibration when the cap 1 is riveted, thereby improving the stability of the cap 1 processing and reducing the defect rate.

[0025] Furthermore, the cap 1 can be made of iron to reduce production costs. Simultaneously, due to the excellent machinability of iron, it facilitates rapid prototyping through conventional processes such as stamping and bending, eliminating the need for complex processing equipment or special techniques, thereby improving production efficiency. Additionally, iron possesses high yield strength and hardness, allowing the cap 1 to withstand greater external impact and deformation pressure, not only enhancing the strength of the cap body but also effectively reducing manufacturing costs and improving production efficiency, achieving the goal of cost reduction and efficiency improvement. Furthermore, a zinc plating can be selectively applied to the surface of the cap 1 to prevent rusting.

[0026] Furthermore, the elastic sheet 2 can be made of spring steel, which is a type of steel specifically designed to withstand repeated bending and stretching and has excellent elasticity. Additionally, the support base 203 can also be made of iron.

[0027] Secondly, a clearance groove 2031 is provided on the side of the support base 203 near the elastic plate 2. During the operation of the slider, the elastic plate 2 undergoes elastic deformation. For example, when the pull tab is pulled to move the hook, the elastic plate 2 will bend and deform due to force. The clearance groove 2031 provides space for the deformation of the elastic plate 2. Without this clearance groove 2031, the elastic plate 2 may be interfered with by the support base 203 during deformation, preventing it from deforming properly and affecting its elastic action on components such as the hook. This ensures the normal operation of the slider's self-locking and opening functions, improving the slider's working stability and reliability.

[0028] By setting the support base 203, during the assembly process, the operator can first fix the elastic piece 2 to the support base 203, then place the assembled elastic piece 2 and support base 203 into the groove 101, and finally rivet the two sides of the cap 1, causing the cap 1 to deform inward locally, thereby fixing the elastic piece 2 and further fixing the support base 203 inside the cap 1. After the support base 203 is fixed to the elastic piece 2, the overall volume and weight of the elastic piece 2 are increased. At the same time, due to the larger volume of the support base 203 and the increased contact surface with the inner wall of the groove 101, it is more stable within the groove 101, reducing the possibility of shaking, thereby reducing the risk of displacement of the elastic piece 2 and improving the assembly quality of the cap 1.

[0029] Example 2:

[0030] The difference between this embodiment and Embodiment 1 is that the elastic sheet 2 and the support base 203 are in contact in this embodiment. (Refer to...) Figure 3-5 Limiting blocks 102 are fixedly connected to both sides of the top of the support base 203. Limiting grooves 2021 are provided on both sides of the elastic sheet 2. An opening 2022 is provided on one side of each limiting groove 2021. The width of the limiting groove 2021 is greater than the width of the limiting block 102, so that the elastic sheet 102 can move with the hook in the horizontal direction, ensuring that the elastic sheet 102 can always act on the hook. The gap between the limiting groove 2021 and the limiting block 102 is the space where the elastic sheet 2 can move.

[0031] During assembly, first place the support base 203 into the groove 101, then place the elastic piece 2 on the surface of the support base 203, and make the limiting block 102 located inside the limiting groove 2021. Finally, rivet the two sides of the cap 1 to fix the elastic piece 2 and the support base 203.

[0032] Secondly, the limiting block 102 is designed as a square structure. When the elastic sheet 102 moves horizontally under the action of the hook and comes into contact with the limiting block 102, the planar contact can disperse the impact force of the elastic sheet 2 on the limiting block 102, reducing the deformation of the limiting block 102 or the damage to the side of the elastic sheet 2 caused by local force concentration.

[0033] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A slider cap comprising a cap (1), an elastic sheet (2), characterized in that: The cap (1) is internally provided with a recess (101); Further comprising a supporting base (203), the elastic sheet (2) is arranged on the top of the supporting base (203) and is fixedly connected with the supporting base (203), and the supporting base (203) is arranged in the recess (101). The cap (1) is composed of iron.

2. The cap of claim 1, wherein: The supporting base (203) is provided with an avoiding groove (2031) on the side close to the elastic sheet (2).

3. The cap of claim 1, wherein: The supporting base (203) is fixedly connected with a limiting block (102) on the two sides of the top, the elastic sheet (2) is provided with a limiting groove (2021) on the two sides, and one side of each limiting groove (2021) is provided with an opening (2022).

4. The cap of claim 3, wherein: The limiting block (102) is in a quadrilateral shape structure as a whole.

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