Clamping head bag capable of containing flexible flat cable

Abstract

The utility model discloses a clamping head bag capable of containing a flexible flat cable, which is characterized in that an inner hole is formed when a clamping head hot sewing thread is processed, an outlet hole is punched and a semi-constraint hot sewing edge is additionally printed at a corresponding position on the clamping head, and after the flexible flat cable sequentially penetrates through the inner hole, the semi-constraint hot sewing edge and the outlet hole, external processing and electrification can be continuously finished. And the damage to the hot sewing thread caused by moving and twisting the flexible flat cable is reduced in the use process after installation.

Description

Technical Field

[0001] This utility model relates to small packaging bags, specifically a type of special purpose packaging bag. Background Technology

[0002] Header bags are a common type of small commodity packaging bag on the market, mainly made of polypropylene (PP, CPP, OPP). A heat-sealed line across the top of the ordinary packaging bag divides the bag into two spaces: a header bag and a product bag. The header section can have a pearlescent film interlayer or be directly printed with patterns and advertisements. After punching holes, hooks can be attached for easy binding, stacking, and retrieval. After pressing the header using the thermoplasticity of polypropylene, a heat-sealed line can be added to the product bag to create two or more compartments for holding items; this is called a header-and-child bag (also known as a header-and-child bag). Furthermore, the thermoplastic adhesive properties of polypropylene can be used to create a seal at the heat-sealing line connection of the header, with the product bag opening at the header, thus producing a reverse-sealed header bag (also known as a reverse-sealed bag or reverse-sealed pouch). Header bags have advantages such as low cost, ease of mass production, and convenient and flexible use, and are therefore commonly used in packaging for various industries, including small commodities, news and publishing, clothing and department stores, daily necessities, and cultural products.

[0003] The number of patent applications for header bags in my country is limited. Chinese patent applications No. 202030749364.6, "Balloon Packaging Bag (Happy Birthday Laser Header Bag)," and No. 202030711338.4, "Balloon Packaging Bag (Laser Header Bag)," are both design patents. Chinese patent application No. 20202078256.0, "A Semi-Automatic Binding Device for Header Bags," is a peripheral device used with header bags. Chinese patent applications No. 20191014269.2, "A Fully Automatic Header Bag Processing Integrated Machine," and Chinese patent applications Nos. 20181016171.0 (Invention) and 20182027445.2 (Utility Model), "A Fully Automatic Cardboard Header Bag Manufacturing System," are all processing and manufacturing machines or systems for producing header bags. There are relatively few innovative invention patents specifically for header bags themselves. In special applications such as special equipment, new types of header bags can be designed based on the advantages of the header bag structure concept, which can continue to play the advantages of low cost and convenient and flexible use while meeting specific needs.

[0004] Flexible flat cables (FCCs) have advantages such as small size, light weight, good flexibility, compact structure, and good electrical reliability. Because they can be easily moved, bent, and twisted without damaging the conductors, they have high assembly reliability and quality, and are therefore widely used for low-voltage signal connections between moving parts and PCB boards, and in miniaturized electrical equipment.

[0005] FFC flexible flat cable mainly consists of insulating films on both sides and a middle conductor. Reinforcing plates are usually added at the contacts. In addition to common specifications, parameters such as the number of conductor cores, spacing, and length can also be customized. Furthermore, it can be further divided into 15 customized specifications based on the contact structure at both ends, such as whether the metal contacts are on the same side, whether both ends of the contacts are fully exposed, whether reinforcing plates are added, whether the reinforcing plates are directly attached to the conductor or to the insulating film, and whether half of the reinforcing plate is raised. The following is a table of parameters related to the width and total width of commonly used FFC flexible flat cable specifications:

[0006]

[0007] The total width of the flexible flat cable is W = (N+1)P. Summary of the Invention

[0008] The purpose of this invention is to provide a type of card holder bag that allows for easy installation of flexible flat cables, so that externally movable devices can connect to the electronic components inside the card holder bag.

[0009] To achieve the above objectives, this utility model provides a card holder bag for storing flexible ribbon cables, comprising: a card holder and a product bag. Its main difference from traditional card holder bags lies in the card holder and the heat-sealed section. A short section of the heat-sealed line is slightly pressed to create an inner hole, allowing the flexible ribbon cable to pass through the product bag and the card holder before exiting through a through-hole next to the card holder's hanging hole. This creates an electrical connection channel next to the hanging hole, which provides the mechanical connection. The position of the inner hole on the heat-sealed line is determined by the arrangement requirements of the internal and external circuits of the card holder bag for the flexible ribbon cable and the safety distance between the flexible ribbon cable and the hanging hole and the side of the card holder bag.

[0010] Based on the requirement that the flexible flat cable's outgoing part can rotate without interfering with the hook, the material of the card holder bag, and the expected service life, the safe distance between the outgoing hole and the hanging hole should not be less than 3mm, and the safe distance between the outgoing hole, the inner hole, and the edge of the card holder bag should not be less than 3mm.

[0011] To balance the degree of freedom of rotation of the section of the flexible flat cable extending out of the clip bag after installation and the durability of the clip bag's exit hole from the edge of the flexible flat cable during movement after installation, the diameter of the exit hole is 2-5mm larger than the total width of the installed flexible flat cable, or when the total width of the flexible flat cable is less than 10mm, the diameter of the exit hole is 1.5 times the total width of the flexible flat cable. The shape of the exit hole is a hole without zigzag edges. When the exit hole is elliptical or a rounded chamfered polygon, the radius of curvature corresponding to the maximum curvature of its edge curve is not less than 1.5 times the spacing between the cores of the installed flexible flat cable.

[0012] To facilitate the installation of flexible flat cables, pre-drill inner holes that are approximately 2-5 mm wider than the total width of the installed flexible flat cables or twice the core spacing. When a wider inner hole is required, it is permissible to manually enlarge the hole to both sides with the pre-drilled inner hole as the center.

[0013] When the distance between the inner hole of the hot-stitched thread and the exit hole of the clip is greater than 5 times the total width of the installed flexible cable, semi-constrained hot-stitched edges are pressed on both sides of the area where the flexible cable passes through the clip. The distance between the upper and lower ends of the pressed semi-constrained hot-stitched edges and the exit hole, hot-stitched thread, or inner hole is not less than the length of the hot-stitched thread seam. The inner spacing of the pressed semi-constrained hot-stitched edges is slightly larger than the width of the flexible cable to be installed. When the total width of the installed flexible cable is relatively thin, the inner spacing of the pressed semi-constrained hot-stitched edges is 1.5 to 2 times the total width of the flexible cable. When the total width of the flexible ribbon cable is greater than 10mm, the spacing between the inner sides of the semi-constrained heat-sealed edge is 2-5mm larger than the total width of the installed flexible ribbon cable. This allows the flexible ribbon cable to move and rotate while extending out of the card holder bag, while also constraining the part inside the bag. This prevents the flexible ribbon cable from bending and getting embedded between the card holder's through-hole and inner hole, and protects the heat-sealed thread and inner hole from being cut or collided by the edge of the flexible ribbon cable. When the distance between the inner hole of the heat-sealed thread and the card holder's through-hole is less than 5 times the total width of the installed flexible ribbon cable, it is not necessary to print a semi-constrained heat-sealed thread.

[0014] The hot-stitched thread skips a certain number of stitches near the intersection with the intended installation point of the flexible cable, leaving an inner hole of a certain width. The width of the inner hole should be slightly wider than the width of the flexible cable to be installed, so that the flexible cable can easily pass through the product bag into the card holder through the inner hole. When installing the flexible cable, it should maintain an appropriate distance from the hook punch and the side of the card holder bag to avoid interference with the hook and to protect the side of the card holder bag from being torn. Therefore, the position of the inner hole on the hot-stitched thread should also maintain an appropriate distance from the area of ​​the hook punch perpendicularly projected onto the hot-stitched thread and from both ends of the hot-stitched thread.

[0015] The card head has a punched hole near the expected exit position of the flexible flat cable. The diameter of the punched hole is slightly larger than the width of the flexible flat cable to be installed, and the shape of the hole is circular or elliptical with a small maximum curvature, which are not easy to tear, so that the flexible flat cable can easily pass through the card head without being easily cut or torn by collisions on both sides of the flexible flat cable. The exit hole should also be kept at an appropriate distance from the upper edge of the card head bag.

[0016] When the ratio of the distance between the inner hole of the heat-sealed thread of the clip head and the exit hole of the clip head to the width of the installed flexible cable is large, a semi-constrained heat-sealed edge is added on both sides of the line connecting the inner hole and the exit hole. This is used to guide the direction of the flexible cable in the clip head and prevent the flexible cable from bending and getting stuck between the exit hole and the inner hole of the clip head when it rotates, thus preventing it from stretching out. A distance is left between the upper and lower ends of the semi-constrained heat-sealed edge and the exit hole, inner hole, or heat-sealed thread so that the flexible cable passing through the exit hole has sufficient freedom of rotation. This reduces the curvature of the flexible cable at these two points when it rotates, thereby buffering the impact of the force pulling on the upper and lower ends of the flexible cable during rotation on the points of the exit hole, semi-constrained heat-sealed thread, and inner hole. The inner distance between the two semi-constrained heat-sealed edges is also slightly larger than the width of the flexible cable to be installed. When the distance between the exit hole and the heat-sealed thread is too close, it is not necessary to add a semi-constrained heat-sealed edge.

[0017] The beneficial effects of this utility model are as follows:

[0018] A. The semi-finished flexible flat cable can be easily inserted into the product bag, and the part of the flexible flat cable that is inserted through the clip can be further processed after it passes through the clip.

[0019] B. The flexible flat cable retains sufficient freedom of rotation and flexibility after passing through the mounting clip bag;

[0020] C. When the flexible cable rotates or twists after passing through the card head bag, the semi-constrained hot-seam edge guides the flexible cable inside the card head bag, protecting the card head boundary hot-seam line and reducing damage caused by pulling and collision. At the same time, the degree of failure of the semi-constrained hot-seam edge can also serve as an early warning for the lifespan of the card head boundary hot-seam line. Attached Figure Description

[0021] Figure 1 This utility model relates to a card head bag when the flexible ribbon cable is not installed.

[0022] Figure 2 This is a schematic diagram of a card header bag of this utility model after the flexible ribbon cable is installed.

[0023] Figure 3 This is a schematic diagram of an inverted card head bag according to the present invention and after the installation of the flexible ribbon cable.

[0024] Figure 1 , Figure 2 middle:

[0025] 1. Card head, 11. Hook punching, 2. Card head edge heat sewing, 3. Product bag, 31. Sealing, 4. Through hole, 5. Semi-constrained heat sewing edge, 6. Inner hole, 7. Soft ribbon cable. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] As shown in the figure, a card holder bag that can hold a flexible flat cable 7 includes a card holder 1 and a product bag 3, and the flexible flat cable is planned to be laid on the right side near the edge of the bag.

[0028] In this implementation, the horizontal range of the flexible flat cable installation should be determined not only by the circuit node positions inside the product bag 3 and outside the card head 1, but also by the safety distance from the hook punch 11 and the side of the card head bag. This safety distance is usually greater than 3mm. The horizontal coordinates of the corresponding through hole 4 and inner hole 6 are also the same as the horizontal coordinates of the flexible flat cable installation.

[0029] In one specific embodiment, the card holder bag provided by this utility model for holding flexible flat cable 7 does not perform heat treatment on the area near the intersection of the heat-sealed line 2 at the boundary of the card holder and the point where the flexible flat cable 7 is to be installed. The width of the unsealed area, i.e. the width of the inner hole 6, is determined by prefabricating a series of card holder bags with different widths of inner holes 6 according to the width table of commonly used flexible flat cable specifications, which are about 2 to 5 mm wider than the total width of the flexible flat cable 7 or twice the core spacing. The wider the total width of the flexible flat cable 7 to be installed, the larger the excess width of the inner hole 6 of the prefabricated card holder bag for holding flexible flat cable 7 is selected. When the width of the inner hole 6 of the selected prefabricated card holder bag for holding flexible flat cable 7 is slightly smaller than the required width, a screwdriver, iron bar or other thin and hard strip can be used to insert into the inner hole 6 from the product bag 3 and then pry open the heat-sealed line 2 slightly to both sides to complete the manual enlargement of the hole.

[0030] In one specific embodiment, the card head bag punches a hole 4 at the upper right of the card head 1, directly opposite the inner hole 6. The shape of the hole can be a hole without zigzag edges. When the hole is a rounded chamfered polygon or an elliptical hole due to the width of the installed flexible flat cable, the radius of curvature corresponding to the maximum curvature of the edge curve is not less than 1.5 times the spacing between the cores of the installed flexible flat cable. The diameter of the hole 4 is slightly larger than the total width of the flexible flat cable 7 to be installed. When the number of cores of the installed flexible flat cable 7 is small and the total width is thin, the diameter can be selected to be 1.5 times larger than the total width of the flexible flat cable 7. When the number of cores of the installed flexible flat cable 7 is large and the total width is wide, the maximum diameter of the hole 4 can be 2-5 mm larger than the total width of the flexible flat cable 7.

[0031] In one specific embodiment, when the distance between the inner hole 6 of the heat-sealed thread of the card head 1 and the card head through hole 4 is greater than 5 times the total width of the flexible cable 7 to be installed, two additional heat seams are applied on each side of the line connecting the inner hole 6 of the heat-sealed thread and the card head through hole 4 as semi-constrained heat seam edges 5. The length of the applied semi-constrained heat seam edges 5 can be equal to the seam length of the heat-sealed thread 2. The upper and lower ends of the applied semi-constrained heat seam edges 5 are connected to the through hole 4, the heat-sealed thread 2, or the inner hole 6. The distance should not be less than the length of the hot seam 2. The inner spacing of the semi-restrained hot seam edge 5 should be slightly larger than the width of the soft ribbon cable 7 to be installed. When the number of cores of the soft ribbon cable 7 is small and the total width is thin, the inner spacing of the semi-restrained hot seam edge 5 should be 1.5 to 2 times the total width of the soft ribbon cable 7. When the number of cores of the soft ribbon cable 7 is large and the total width is greater than 10mm, the inner spacing of the semi-restrained hot seam edge 5 should be 2 to 5mm larger than the total width of the soft ribbon cable 7.

[0032] Furthermore, when the distance between the card head 1 and the line connecting the card head through hole 4 and the inner hole 6 or the hot-stitched line 2 is less than 5 times the total width of the soft ribbon cable 7 to be installed, it is not necessary to apply pressure to the semi-constrained hot-stitched edge 5.

[0033] Furthermore, the card head 1 of the card head bag should also maintain a safe distance between the card head through hole 4 and the upper edge of the card head bag 1, which is usually greater than 3mm.

[0034] Furthermore, when the planned installation of the flexible flat cable 7 requires the processing and fixing of other attachment elements in the middle or at both ends, the middle section and the end that is far away from the card head 1 after installation can be processed outside the card head bag first, and then inserted into the product bag 3 through the seal 31, and passed through the inner hole 6, the semi-constrained heat-sealed edge 5, and the exit hole 4 in sequence, and finally the end of the flexible flat cable 7 that is passed out from the outside of the card head 1 can be processed.

[0035] Furthermore, when it is necessary to install the flexible ribbon cable 7 in the inverted card head bag, the end near the card head 1 after installation is not processed first. After the product bag 3 is inserted into the sealed bag 31, the sealed bag 31 is kept open, the card head 1 is folded back, and the flexible ribbon cable 7 is folded back through the inner hole 6, the semi-constrained heat-sealed edge 5, and the through hole 4. After that, the card head 1 and the flexible ribbon cable 7 are restored, and the sealed bag is closed. At this time, the extended end of the flexible ribbon cable 7 that is inserted into the inverted card head bag and stretched out can be processed.

[0036] Furthermore, as the soft ribbon cable 7 extending out of the card head bag moves and twists with other external components, the twisting amplitude and pulling force of the section inside the card head bag will be greatly reduced due to the guiding and restraining effect of the through hole 4 and the semi-constrained hot seam edge 5, which greatly reduces the destructive force on the hot seam 2 and inner hole 6 of the card head boundary.

[0037] The foregoing has provided a detailed description of a flexible ribbon cable holder bag provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art and other fields who use this utility model can make various improvements and modifications to it without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A connector bag capable of accommodating a flexible flat cable, characterized by The soft flat cable can pass through the product bag and the clamping head, and then pass out from the through-out hole beside the hanging hole of the clamping head, so as to open an electrical connection channel beside the hanging hole which is mechanically connected. The position of the inner hole on the heat seam line is determined by the arrangement requirement of the inner and outer circuits of the clamping head bag on the soft flat cable and the safety distance of the soft flat cable from the hanging hole and the side edge of the clamping head bag.

2. The connector bag of claim 1, wherein According to the requirement that the soft flat cable does not interfere with the hook during rotation, the clamping head bag material and the expected service life, the safety distance between the through-out hole and the hanging hole is not less than 3 mm, and the safety distance between the through-out hole, the inner hole and the edge of the clamping head bag is not less than 3 mm.

3. The connector bag of claim 1, wherein In order to consider the rotation freedom of the soft flat cable after installation and the durability of the through-out hole of the clamping head bag when the soft flat cable moves after installation, the diameter of the through-out hole is 2-5 mm larger than the total width of the soft flat cable, or when the total width of the soft flat cable is less than 10 mm, the diameter of the through-out hole is 1.5 times the total width of the soft flat cable. The through-out hole is a hole without fold line at the edge. When the through-out hole is an oval or a circular arc chamfered polygon, the maximum curvature of the edge curve corresponds to a curvature radius not less than 1.5 times the core spacing of the installed soft flat cable.

4. The connector bag of claim 1, wherein In order to facilitate the installation of the soft flat cable, the inner hole is pre-fabricated with a size of about 2-5 mm or 2 times the core spacing wider than the total width of the installed soft flat cable. When a wider inner hole is needed, the pre-fabricated inner hole can be manually expanded to both sides.

5. The connector bag of claim 1, wherein When the distance between the inner hole of the heat seam line and the through-out hole of the clamping head is greater than 5 times the total width of the installed soft flat cable, the half-restricted heat seam edges are pressed on both sides of the soft flat cable passing through the clamping head. The distance between the upper and lower ends of the pressed half-restricted heat seam edges and the through-out hole, the heat seam line or the inner hole is not less than the length of the pressed heat seam. The inner side spacing of the pressed half-restricted heat seam is slightly larger than the width of the soft flat cable to be installed. When the total width of the installed soft flat cable is relatively small, the inner side spacing of the pressed half-restricted heat seam is 1.5-2 times the total width of the soft flat cable. When the total width of the soft flat cable is greater than 10 mm, the inner side spacing of the pressed half-restricted heat seam is 2-5 mm larger than the total width of the installed soft flat cable. Thus, the soft flat cable can move and rotate while its bag part is also restricted, avoiding the soft flat cable being bent and embedded between the through-out hole and the inner hole of the clamping head, and protecting the heat seam line and the inner hole from being cut by the edge of the soft flat cable. When the distance between the inner hole of the heat seam line and the through-out hole of the clamping head is less than 5 times the total width of the installed soft flat cable, the half-restricted heat seam line does not need to be pressed.

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