Zipper structure and box body

Abstract

The invention provides a zipper structure and a box body, and relates to the technical field of luggage, the zipper structure is used for connecting an upper shell and a lower shell of the box body, the zipper structure comprises two zipper bodies, each zipper body comprises zipper cloth and a keel, one end of each zipper cloth is provided with first zipper teeth, the other end of each zipper cloth is used for being connected with lining cloth of the box body, the first zipper teeth are used for being meshed with first zipper teeth of another zipper body; wherein the zipper body is arranged on the box body, the keel is connected with the zipper cloth, and the zipper body is fixed on the box body by fixedly connecting the keel with the box body. Therefore, the problems that an existing zipper box needs full-manual sewing during installation, the reject ratio is high, and the labor cost is high are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of luggage, and more specifically, to a zipper structure and a box body. Background Art

[0002] At present, the trolley cases on the market can be roughly divided into two types. One is a zipper case (i.e., the opening and closing of the case is controlled by a zipper), and the other is a buckle lock case (i.e., the opening and closing of the case is controlled by a buckle lock with a mechanism). Among them, in the process of using a zipper case, it has a larger capacity, is lighter in weight, and is more convenient to use. Therefore, zipper cases are more widely used and occupy a dominant position in the sales market of luggage. The production of existing zipper cases is almost all through manual means, sewing the zipper and the case shell together by a sewing machine (commonly known as: high-speed sewing machine). This production method of manual sewing has high requirements for the proficiency of employees' job skills, resulting in high defect rates, low efficiency, and high labor costs. With the increasing competition in the manufacturing industry, luggage enterprises are also facing industrial upgrading. If this traditional zipper assembly method continues to be used, they will surely lose their competitive advantage in the industry and it will be difficult for the enterprises to go further. Summary of the Invention

[0003] The present invention discloses a zipper structure, aiming to improve the problems of high defect rate and high labor cost in the installation of existing zipper cases that require all manual sewing.

[0004] The present invention adopts the following solutions:

[0005] A zipper structure for connecting the upper shell and the lower shell of a box body, comprising two zipper bodies. Each zipper body includes a zipper cloth and a keel. One end of the zipper cloth is provided with a first zipper tooth, and the other end is used to connect with the inner cloth of the box body. Among them, the first zipper tooth is used to mesh with the first zipper tooth of another zipper body; wherein, the keel is connected to the zipper cloth, and by fixedly connecting the keel with the box body, the zipper body is fixed on the box body.

[0006] As a further improvement, the other end of the zipper cloth relative to the first zipper tooth is provided with a second zipper tooth for meshing with the inner cloth, and the keel is arranged between the first zipper tooth and the second zipper tooth.

[0007] As a further improvement, the keel is used to connect two zipper cloths, and the end of the zipper cloth away from the keel is provided with a first zipper tooth.

[0008] As a further improvement, the keel is integrally formed with the zipper cloth or fixed by sewing or gluing.

[0009] As a further improvement, the keel is of an integrally hollow type.

[0010] As a further improvement, the keel is segmented and in the shape of a chain, a buckle or a multi-fold.

[0011] As a further improvement, the keel is configured to be installed on the outer peripheral surface of the box body and fixed to the box body by means of fasteners or adhesives.

[0012] As a further improvement, the zipper cloth is elastic.

[0013] As a further improvement, the material of the keel is at least one of plastic, metal and wood.

[0014] Another box body is provided, which includes an upper shell and a lower shell. The upper shell and the lower shell are connected by a zipper structure, and the zipper structure is the zipper structure as described above.

[0015] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0016] 1. In this application, the zipper body is fixed to the box body through the keel, so that there is no need for manual high-speed sewing during the fixing process of the zipper body, thereby reducing labor costs. In addition, the keel can be fixed through assembly, and its operation difficulty is much lower than that of high-speed sewing, which can ensure the assembly quality and thus improve the yield rate. At the same time, the assembly and fixing method of the keel is very easy to realize automated production, solving the problem that traditional production lines cannot be automated. Modularize and automate the assembly production of the zipper structure, optimize the factory material management and the personnel allocation of the production line, greatly improve the production efficiency and quality, and greatly save the factory's labor costs and production costs, truly achieving cost reduction and efficiency increase.

[0017] 2. The zipper cloth and the keel form a modular assembly, with zipper teeth reserved inside for meshing with the inner cloth, facilitating the installation, disassembly, cleaning or washing of the inner cloth, thus being convenient for consumers to use.

[0018] 3. The zipper cloth is elastic, and the expansion function of the zipper box is realized through the elasticity generated by the zipper cloth itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 and Figure 2 are schematic structural diagrams of one embodiment of the present invention from different perspectives;

[0021] Figures 3 to 5 It is a schematic structural diagram of the keel in different embodiments of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the sewing connection between the keel and the zipper part of the present invention (the dotted line indicates the sewing track);

[0023] Figures 7 to 10 It is an assembly schematic diagram of the zipper structure in different embodiments of the present invention;

[0024] Figures 11 to 14 It is a schematic structural diagram of the box body in different embodiments of the present invention;

[0025] Figures 15 to 18 It is a schematic structural diagram of the assembly of the groove and the keel in different embodiments of the present invention;

[0026] Figures 19 to 23 It is a schematic structural diagram of the groove in different embodiments of the present invention;

[0027] Figure 24 It is a schematic structural diagram of the mold in one embodiment of the present invention;

[0028] Figure 25 It is a schematic structural diagram of the box body in one embodiment of the present invention.

[0029] Figure 26 It is a schematic structural diagram of the mold in another embodiment of the present invention;

[0030] Figure 27 It is a schematic diagram of the dimensions of the groove in different embodiments of the present invention.

[0031] Icon:

[0032] 1 - Box body; 11 - Upper shell; 12 - Lower shell; 13 - Inner lining cloth; 131 - Third zipper teeth; 14 - Groove;

[0033] 2 - Zipper cloth; 21 - First zipper teeth; 22 - Second zipper teeth;

[0034] 3 - Keel; 31 - Rubber strip;

[0035] 4 - Rivet;

[0036] 5 - Decorative strip;

[0037] 6 - Mold body; 61 - First forming part;

[0038] 7 - Movable part; 71 - Second forming part;

[0039] 8 - Sheet material. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0041] Embodiment

[0042] Combined with Figure 1 and Figure 2 , this embodiment provides a zipper structure for connecting the upper shell 11 and the lower shell 12 of the box body 1, including two zipper bodies. Each zipper body includes a zipper cloth 2 and a keel 3. One end of the zipper cloth 2 is provided with a first zipper tooth 21, and the other end is used to connect with the inner cloth 13 of the box body 1. Among them, the first zipper tooth 21 is exposed outside the box body 1 and is used to mesh with the first zipper tooth 21 of another zipper body; the keel 3 is connected to the zipper cloth 2, and by fixedly connecting the keel 3 to the box body 1, the zipper body is fixed on the box body 1. Preferably, the keel 3 is used to be installed on the outer peripheral surface of the box body 1 and is fixed to the box body 1 by means of fasteners or adhesives. Exemplarily, the fixing method of the keel 3 to the box body 1 can be rivet 4 (pull nail) fixing, screw fixing, glue fixing, hot melting, sewing, etc.

[0043] It should be noted that in this embodiment, the zipper body is fixed on the box body 1 by fixing the keel 3 to the box body 1. During the fixing process of the zipper body, there is no need for manual high-speed sewing, thus reducing labor costs. In addition, the keel 3 can be fixed through assembly, and its operation difficulty is much lower than that of high-speed sewing, which can ensure the assembly quality and thus improve the yield rate. At the same time, the assembly and fixing method of the keel 3 is very easy to realize automated production, solving the problem that traditional production lines cannot be automated. Modularizing and automating the assembly production of the zipper structure, optimizing the factory material management and the personnel configuration of the production line, greatly improving the production efficiency and product quality, greatly saving the labor cost and production cost of the factory, and truly achieving cost reduction and efficiency increase.

[0044] Based on the above embodiments, in an optional embodiment of the present invention, on the other end of the zipper cloth 2 relative to the first zipper teeth 21, there are second zipper teeth 22 for meshing with the inner cloth 13, and the keel 3 is arranged between the first zipper teeth 21 and the second zipper teeth 22. Exemplarily, a whole piece of zipper cloth 2 is selected, bent and sewn according to the required size, and the bent part is used to connect with the keel 3. In other embodiments, two pieces of zipper cloth 2 can also be selected for splicing and sewing, and the bent parts of the two zipper parts are connected to the keel 3. The end of the zipper cloth 2 away from the keel 3 is provided with first zipper teeth 21, one end is used to mesh with another zipper body, and the other end is used to mesh with the inner cloth 13. For the inner cloth, zipper and box body of a traditional zipper box, the three need to be sewn manually to become a whole and cannot be disassembled. The zipper cloth 2 and the keel 3 in this embodiment form a modular assembly, and zipper teeth for meshing with the inner part are reserved inside, which is convenient for the installation, disassembly, cleaning or washing of the inner cloth 13, thus facilitating the use of consumers.

[0045] In a preferred embodiment, the keel 3 and the zipper cloth 2 are integrally formed. For example, secondary overmolding injection molding, not limited to this, in other embodiments, the keel 3 and the zipper cloth 2 can also be fixed by sewing (as Figure 6 shown), hot melting, rivets 4, clamping, buckling, gluing and other methods. Preferably, the keel 3 and the zipper cloth 2 are integrally injection molded, and their bonding strength is higher; the keel 3 is an integral or segmented keel. The integral keel is an entire independent keel, and the segmented keel is composed of multiple segments; the keel 3 can be bent along with the shape of the box body, so it can fit any arc of the circumference of the box body 1. The length of the keel 3 can be adjusted by the number of segments, and the length of the segments can be set according to requirements. Combining Figures 3 to 5 , the keel 3 can be in the shape of a chain, a buckle or a pleated shape, etc. The keel 3 can be made of plastic, soft rubber, wood, metal, leather and other materials. In another embodiment, the keel 3 is integrally hollow. The keel 3 is formed by extrusion molding or metal bending of the whole hollow, and it can be metal, soft rubber, or hard rubber or a combination of hard and soft co-extruded materials or wood. There are many material options, good strength, and the keel 3 and the zipper can fit any arc of the circumference of the box body 1. Combining Figures 7 to 10 , the keel 3 can be in different shapes, and a rubber strip 31 can also be padded at the locking position to enhance the fastening of the locking position. The rubber strip 31 can be hard rubber or soft rubber, or a combination of both. The fixing rivets 4 can also be arranged on the bottom or side of the keel 3, and their installation forms and shapes are diverse, which can meet the design requirements of different box bodies 1.

[0046] Furthermore, the zipper cloth 2 is elastic. Through the elasticity generated by the zipper cloth 2 itself, the expansion function of the zipper box is realized. After use, the capacity of the box body 1 can be expanded by more than 20%. It is more concise, convenient and practical than the zipper telescopic function of traditional zipper boxes. Among them, the zipper cloth 2 can use recycled mineral water bottles as raw materials, be processed into a new type of environmentally friendly material, and be woven into an elastic zipper cloth 2. Not limited to this, other elastic fabrics can also be used. Thus, it can be applied to various forms of zipper boxes, such as: front-opening, rear-opening, side-opening, top-opening, external pockets, external backpacks, etc. Among them, the zipper box is a box that uses a zipper for opening and closing, including blister zipper boxes, injection molding zipper boxes, frame zipper boxes, thermoformed zipper boxes, cloth boxes, chemical boxes, etc. Not limited to this, no specific limitation is made.

[0047] Combined with Figures 11 to 14 , the present invention further provides a box body, including an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 are connected by a zipper structure, and the zipper structure is the zipper structure of any one of the above embodiments. Preferably, a groove 14 is designed around the box opening. The groove 14 directly strengthens the box opening, and at the same time, a keel 3 is added in the groove 14 to improve the overall strength of the box body 1. During assembly, the keel 3 is snapped into the groove 14 and fixed to the groove 14 so that the zipper structure is fixedly connected to the box body 1. For example, rivets 4 (pull nails) are driven from the inside of the box body 1 to the outside to fix the keel 3. The keel 3 can also be fixed to the groove 14 by screws, adhesives, hot melting, sewing, etc.

[0048] Another embodiment provides a box body, including two shells (the upper shell 11 and the lower shell 12 respectively) and a zipper structure for connecting the two shells. The zipper structure includes two zipper cloths 2 and a keel 3 fixedly connected to the zipper cloth 2; wherein, a first zipper tooth 21 for controlling the opening and closing of the two shells is arranged on the zipper cloth 2, and a groove 14 for accommodating the keel 3 is arranged on the shell. The keel 3 is fixed in the groove 14 so that the zipper cloth 2 is fixed on the shell.

[0049] Furthermore, the height of the keel 3 is not greater than the depth of the groove 14, so that the height of the keel 3 is lower than the outer peripheral surface of the box body 1, making the appearance of the box body 1 integrated and improving the overall effect and aesthetics of the box body 1. Preferably, a decorative strip 5 is arranged at the opening of the groove 14 to cover the keel 3, and the outer peripheral surface of the decorative strip 5 is flush with the outer surface of the shell, so that the appearance of the box body 1 is more tidy. In one implementation manner, a first clamping portion is arranged on the decorative strip 5, and a second clamping portion is arranged on the keel 3. The decorative strip 5 is fixedly buckled through the first clamping portion and the second clamping portion. The first clamping portion and the second clamping portion can be set as buckles, not limited to this.

[0050] Specifically, in this embodiment, referring to Figure 13, the box body 1 has no stepped undulations of the traditional opening method, and the surface of the box body 1 is flatter, more integral and more beautiful. Refer to Figure 14 , the box body 1 has no large circumferential gaps of the traditional opening method, saves more space, and has a larger capacity inside the box body 1.

[0051] In another embodiment, in combination with Figures 15 to 18 , the inner wall surface of the groove 14 is configured to be similar to the outer wall surface of the keel 3, that is, the groove 14 can be matched and adjusted according to various shapes of the keel 3, and can be square, circular, elliptical, trapezoidal, etc., without specific limitation.

[0052] Preferably, the groove 14 is arranged near the opening of the housing, and the position of the groove 14 can be Figures 19 to 23 As shown, the setting of the groove 14 can enhance the strength of the opening of the box body 1, and the connection between the keel 3 and the groove 14 can further strengthen the strength of the box body 1. Thus, the problem that the existing zipper box has a straight surface near the opening and the strength of the box body is weak is improved. Preferably, as Figure 27 shown, the size range of the groove 14 is: w1: 0.3 - 35 mm; w2: 0.5 - 40 mm; w3: 1.0 - 40 mm; h: 0.3 - 35 mm.

[0053] Based on the above embodiments, in an alternative embodiment of the present invention, one end of the zipper cloth 2 is provided with a first zipper tooth 21, and the other end is provided with a second zipper tooth 22. The first zipper tooth 21 is exposed outside the box body 1 and is used to engage with the first zipper tooth 21 of another zipper body; the second zipper tooth 22 is used to engage with the third zipper tooth 131 on the inner cloth 13 of the box body 1. Preferably, the zipper cloth 2 and the keel 3 are integrally formed to facilitate conforming to any arc on the groove 14, and the length of the keel 3 can also be arbitrarily intercepted according to needs.

[0054] In combination with Figure 24 and Figure 25 , the present invention further provides a mold, including a mold body 6 and a movable member 7. The mold body 6 is provided with a first forming portion 61, and the movable member 7 is provided with a second forming portion 71. The movable member 7 is arranged around the first forming portion 61, and the heated sheet 8 is adsorbed by vacuum so that the sheet 8 is adsorbed on the surface of the first forming portion 61 to form a housing, and the groove 14 is formed via the second forming portion 71, wherein the housing is the housing as described in the above embodiments. Exemplarily, the second forming portion 71 protrudes outward. When the mold is opened, the movable member 7 first moves outward to facilitate the demolding of the housing.

[0055] Specifically, the using steps of the mold include:

[0056] (1) Gather the 4 movable members 7 arranged around the upper part of the mold body 6 towards the center in the horizontal direction;

[0057] (2) Place the heated plastic sheet 8 on the mold body 6;

[0058] (3) Vacuum adsorb the plastic sheet 8 to make the sheet 8 adsorbed downward on the first molding part 61 of the mold body 6 to form the shell body; and form a groove 14 at the second molding part 71 of the movable part 7;

[0059] (4) During demolding, the movable part 7 first moves away from the center horizontally and outward to complete the demolding of the groove 14; then the mold body 6 sinks to separate the shell from the mold body 6 to achieve shell demolding;

[0060] (5) Finally, take out the shell to complete mold unloading.

[0061] The movable part 7 and the mold body 6 are reset, and the above process is repeated to achieve mass production. It should be noted that this molding and demolding process is applicable to female mold thermoforming and can also be applied to male mold thermoforming. When applied to male mold thermoforming, the second molding part 71 of the movable part 7 can be recessed. This is not limited to this and no specific limitation is made.

[0062] In other embodiments, referring to Figure 26 , an assembly groove for adapting to the movable part 7 is formed on the mold body 6, and the molding and demolding process includes:

[0063] (1) Place 4 movable parts 7 into the assembly grooves around the upper part of the mold body 6,

[0064] (2) Place the heated plastic sheet 8 on the mold body 6;

[0065] (3) Vacuum adsorb the plastic sheet 8 to make the sheet 8 adsorbed downward on the first molding part 61 of the mold body 6 to form the shell body; and form a groove 14 at the second molding part 71 of the movable part 7;

[0066] (4) During demolding, the movable part 7 is synchronously taken out upward with the shell to separate from the mold body 6, and then the movable part 7 is moved out laterally to complete the demolding of the groove 14. Repeat the above process to achieve mass production.

[0067] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A zipper structure for connecting the upper shell and the lower shell of a box body, characterized in that, It includes two zipper bodies. The zipper body includes a zipper cloth and a keel. One end of the zipper cloth is provided with first zipper teeth, and the other end is used to connect with the inner cloth of the box body. Among them, the first zipper teeth are used to engage with the first zipper teeth of another zipper body. Among them, the keel is connected to the zipper cloth. By fixedly connecting the keel with the box body, the zipper body is fixed on the box body.

2. The zipper structure according to claim 1, wherein The other end of the zipper cloth relative to the first zipper teeth is provided with second zipper teeth for engaging with the inner cloth, and the keel is arranged between the first zipper teeth and the second zipper teeth.

3. The zipper structure according to claim 1, characterized in that, The keel is used to connect two zipper cloths, and the end of the zipper cloth away from the keel is provided with first zipper teeth.

4. The zipper structure according to claim 1, characterized in that, The keel and the zipper cloth are integrally formed or fixed by sewing or gluing.

5. The zipper structure according to claim 1, wherein The keel is of an integrally hollow type.

6. The zipper structure according to claim 1, characterized in that, The keel is segmented, in a chain shape, a buckle shape or a pleated shape.

7. The zipper structure according to claim 1, wherein, The keel is used to be installed on the outer peripheral surface of the box body and is fixed to the box body by means of fasteners or glue.

8. The zipper structure according to any one of claims 1-7, characterized in that, The zipper cloth has elasticity.

9. The zipper structure according to any one of claims 1-7, characterized in that, The material of the keel is at least one of plastic, metal and wood.

10. A box body, characterized in that, It includes an upper shell and a lower shell. The upper shell and the lower shell are connected by a zipper structure, and the zipper structure is the zipper structure according to any one of claims 1-9.

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