Hook body structure and multi-layer structure
The injection-molded hook structure, combined with the design of the support layer and the covering layer, solves the problem of deformation of the traditional hook structure after repeated use, improves the structural stability and durability, adapts to various surface shapes, and extends the service life.
Patent Information
- Application Number
- CN202422790293.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-15
AI Technical Summary
The traditional hook structure deforms after multiple fixations and removals, resulting in a weakened fixation effect. It cannot meet the needs of multiple fixations and separations, and is easily damaged during separation.
The hook structure is injection molded, including a support layer and a cover layer. The support layer is made of elastic material. The hook units are arranged equidistantly in different directions and combined with the base material to form a multi-layer structure. It is manufactured through a double-material injection molding process.
The structural stability and durability of the hook structure are improved, the production process is simplified, the elasticity and mechanical strength of the hook structure are enhanced, it can adapt to different surface shapes and extend the service life.
Smart Images
Figure CN223420235U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present utility model relates to a hook body structure and a multi-layer knot, and in particular to an injection-molded hook body structure and a multi-layer knot. BACKGROUND
[0002] In daily life, the traditional fixing method for fixing two objects is sewing or adhesion. If the sewed or adhered objects are to be separated, irreversible damage will be caused, such as the line holes left after the sewed objects are removed or the damage to the adhered surface caused by separating the adhered objects. In addition, the traditional fixing method cannot meet the changing needs of multiple fixations and separations.
[0003] In order to allow the fixed objects to be removed as needed and reduce damage, a new generation of fixing method, i.e., a hook body structure, is developed. Corresponding hook body structures are respectively arranged on the two objects to be fixed, and the corresponding hook body structures are pressed together to form a fixed state, and can be disassembled when separation is needed. However, the traditional hook body structure will deform after being fixed and disassembled multiple times, resulting in weakened fixing effect.
[0004] Therefore, it is an effort of the industry to develop a hook body structure that can simply fix objects and facilitate disassembly, while improving durability and structural stability. SUMMARY
[0005] One object of the present utility model is to provide a hook body structure and a multi-layer knot. The hook body structure formed by injection molding can simplify the production process and improve the structural stability of the hook body structure.
[0006] One embodiment of the present utility model is a hook body structure having a first extension direction and a second extension direction, and comprising a support layer and a cover layer. The support layer comprises a base layer and a plurality of hook body column groups. The hook body column groups are arranged at equal intervals along the first extension direction. Each of the hook body column groups comprises a plurality of hook body units. The hook body units of each of the hook body column groups are arranged at equal intervals along the second extension direction, and the hook body units are integrally connected to one side of the base layer. The cover layer covers the hook body units of the support layer and a plurality of surface areas of the base layer exposed on the side.
[0007] According to the foregoing hook body structure, the hook body column groups can be arranged at equal intervals along the first extension direction.
[0008] According to the foregoing hook body structure, the hook body units of each of the hook body column groups can be arranged at equal intervals along the second extension direction.
[0009] According to the foregoing hook body structure, the support layer can be made of an elastic material, and the support layer can extend along at least one of the first extension direction and the second extension direction.
[0010] According to the aforementioned hook structure, the support layer may include a first polymer material, and the cover layer may include a second polymer material.
[0011] According to the aforementioned hook structure, the first polymer material can be thermoplastic polyurethane, thermoplastic polystyrene elastomer or thermoplastic polyester elastomer.
[0012] Another embodiment of the present invention is a multi-layer structure, which includes the aforementioned hook structure and a substrate, wherein the substrate is disposed on the other side of the base layer of the support layer.
[0013] According to the aforementioned multi-layer structure, the substrate may be a fabric.
[0014] According to the aforementioned multi-layer structure, the substrate may be elastic, and the substrate may extend along at least one of the first extension direction and the second extension direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] To make the above and other objects, features, advantages and embodiments of the present invention more apparent, the accompanying drawings are described as follows:
[0016] Figure 1 This is a three-dimensional schematic diagram of the hook structure of Example 1 according to one embodiment of the present invention;
[0017] Figure 2 According to the utility model Figure 1 A schematic cross-sectional view of the hook structure of Example 1 of the embodiment;
[0018] Figure 3 is a schematic cross-sectional view of a hook structure according to Example 2 of one embodiment of the present utility model;
[0019] Figure 4 is a schematic cross-sectional view of a hook structure according to Example 3 of one embodiment of the present utility model;
[0020] Figure 5 is a schematic cross-sectional view of a hook structure according to Example 4 of one embodiment of the present utility model;
[0021] Figure 6 is a perspective schematic diagram of a multi-layer structure according to another embodiment of the present invention;
[0022] Figure 7 is another three-dimensional schematic diagram of the composite structure according to FIG.
[0023] Figure 8 It is a flowchart of a method for manufacturing a hook structure according to another embodiment of the present invention. Description of the drawings:
[0025] 10: Multi-layer structure
[0026] 11: Base material
[0027] 20: Manufacturing method of hook structure
[0028] 21,22,23: Steps
[0029] 100,200,300,400: hook structure
[0030] 110, 210, 310, 410: support layer
[0031] 111, 211, 311, 411: Grassroots
[0032] 113,213,313,413: hook unit
[0033] 120, 220, 320, 420: Covering layer
[0034] D1: first extension direction
[0035] D2: Second extension direction DETAILED DESCRIPTION
[0036] The following describes various embodiments of the present invention with reference to the accompanying drawings. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some known and conventional structures and components are depicted in simplified schematic form; and duplicate components may be represented using the same reference numerals.
[0037] <hook structure>
[0038] Please refer to Figure 1 and Figure 2 , Figure 1 is a three-dimensional schematic diagram of a hook structure 100 according to Example 1 of one embodiment of the present invention. Figure 2 According to the utility model Figure 1 A schematic cross-sectional view of the hook structure 100 of Example 1 of the embodiment. Figure 1 and Figure 2As can be seen, the hook structure 100 of Example 1 has a first extension direction D1 and a second extension direction D2, and includes a support layer 110 and a covering layer 120. The support layer 110 includes a base layer 111 and a plurality of hook array groups (not shown). The hook array groups are spaced apart along the first extension direction D1, each of which includes a plurality of hook units 113. The hook units 113 of each hook array group are spaced apart along the second extension direction D2 and are integrally connected to one side of the base layer 111. The covering layer 120 covers the hook units 113 of the support layer 110 and the plurality of surface areas of the base layer 111 exposed on said side (not shown). This enhances the structural integrity and strength of the hook structure 100. Furthermore, the integral connection of the hook units 113 to the base layer 111 contributes to the structural stability of the hook structure 100.
[0039] Furthermore, the hook column groups can be arranged at equal intervals along the first extension direction D1. Furthermore, the hook units 113 of each hook column group can be arranged at equal intervals along the second extension direction D2. This can improve the load strength of the hook structure 100 when subjected to force and its resistance to external forces. In addition, the manufacturing steps of the hook structure 100 can be simplified to improve production efficiency. Figure 2 It can be seen that the hook unit 113 may be T-shaped, and the width of the end thereof away from the base layer 111 is the maximum width of the hook unit 113 .
[0040] Furthermore, the support layer 110 can be made of an elastic material and extend along at least one of a first extension direction D1 and a second extension direction D2. The support layer 110 can comprise a first polymer material, and the cover layer 120 can comprise a second polymer material. This allows the hook structure 100 to be applied to various surface shapes. The elastic support layer 110 can conform to the surface shape of the object to which it is attached, thereby increasing the shape adaptability of the hook structure 100. Furthermore, adjusting the hardness difference between the first polymer material of the support layer 110 and the second polymer material of the cover layer 120 allows the hook structure 100 to have both elasticity and mechanical strength, enhancing the durability of the hook structure 100. Specifically, the first polymer material can be thermoplastic polyurethane (TPU), thermoplastic polystyrene elastomer (TPS), or thermoplastic polyester elastomer (TPEE). This can improve the elongation and resilience of the hook structure 100. Furthermore, the second polymer can be nylon, polyester, polyurethane, or polyolefin, thereby improving the anti-friction properties of the hook structure 100.
[0041] Specifically, the support layer 110 possesses toughness and can be considered the core skeleton of the hook structure 100, enhancing its durability. Specifically, the hook unit 113 of the hook structure 100 is symmetrically T-shaped, which facilitates uniform force distribution and shape retention. Furthermore, the structural symmetry of the hook structure 100 reduces mold design complexity, improving demolding efficiency and product yield.
[0042] Furthermore, the cover layer 120 covers the hook unit 113 of the support layer 110 and corresponds in shape to the hook unit 113. The thickness of the cover layer 120 can be adjusted as needed. The cover layer 120 can serve as a protective layer to mitigate surface friction damage to the hook structure 100 after prolonged use, thereby extending the service life of the hook structure 100.
[0043] Please refer to Figure 3, which is a cross-sectional schematic diagram of a hook structure 200 of Example 2 according to an embodiment of the present invention. The hook structure 200 of Example 2 includes a support layer 210 and a cover layer 220, wherein the support layer 210 includes a base layer 211 and a plurality of hook array groups (not shown), and each hook array group includes a plurality of hook units 213. The structure of the hook structure 200 of Example 2 is similar to the hook structure 100 of Example 1, the difference being that the shapes of the hook units 213 of the hook structure 200 and the hook units 113 of the hook structure 100 are different. Figure 3 As can be seen, the width of the hook unit 213 of the hook structure 200 at the end adjacent to the base layer 211 is the maximum width of the hook unit 213. The width of the hook unit 213 gradually decreases as it moves away from the base layer 211, and the width of the hook unit 213 at the end away from the base layer 211 is the minimum width of the hook unit 213. The cover layer 220 conforms to the shape of the hook unit 213 and extends from the end of the hook unit 213 away from the base layer 211 in an arc-shaped hook shape. This ensures that the hook structure 200 is subjected to uniform force direction. Its application in connection structures facilitates disassembly, facilitating less effort and maintaining structural stability.
[0044] Please refer to Figure 4 , which is a cross-sectional schematic diagram of a hook structure 300 of Example 3 according to an embodiment of the present invention. The hook structure 300 of Example 3 includes a support layer 310 and a cover layer 320, wherein the support layer 310 includes a base layer 311 and a plurality of hook array groups (not shown), and each hook array group includes a plurality of hook units 313. The structure of the hook structure 300 of Example 3 is similar to the hook structure 100 of Example 1, the difference being that the shapes of the hook units 313 of the hook structure 300 and the hook units 113 of the hook structure 100 are different. Figure 4 As can be seen, the hook unit 313 of the hook structure 300 has a maximum width at the end adjacent to the base layer 311, and a minimum width at half its height. Furthermore, the end of the hook unit 313 distal to the base layer 311 may be V-shaped with two endpoints. The cover layer 320 conforms to the shape of the hook unit 313 and extends from both endpoints to form a symmetrical double-arc hook. This provides the hook structure 300 with more stress-bearing points, increasing its resistance to external forces and enhancing its hooking effectiveness in connecting structures.
[0045] Please refer to Figure 5 , which is a cross-sectional schematic diagram of a hook structure 400 according to Example 4 of an embodiment of the present invention. Figure 5The hook body structure 400 of the embodiment 4 comprises a support layer 410 and a cover layer 420, wherein the support layer 410 comprises a base layer 411 and a plurality of hook body column groups (not shown in the figure), and each hook body column group comprises a plurality of hook body units 413. The structure of the hook body structure 400 of the embodiment 4 is similar to that of the hook body structure 100 of the embodiment 1, and the difference is that the shape of the cover layer 420 of the hook body structure 400 is different from that of the cover layer 120 of the hook body structure 100. As shown in Figure 5 The hook body unit 413 can be in a T shape, the width of the end away from the base layer 411 is the maximum width of the hook body unit 413 and has two end points. The cover layer 420 covers the shape of the hook body unit 413, and the cover layer 420 extends from the two end points of the hook body unit 413 to the direction of the base layer 411 to form two protruding parts. In this way, the structural strength of the hook body structure 400 can be increased to improve the resistance of the hook body structure 400 to external forces.
[0046] <Multi-layer structure>
[0047] Please refer to Figure 6 and Figure 7 , Figure 6 is a perspective view of a multi-layer structure 10 according to another embodiment of the present application, Figure 7 is a perspective view of a multi-layer structure 10 according to another embodiment of the present application. Figure 6 Figure 1 、 Figure 6 and Figure 7 It can be seen that another embodiment of the present application is a multi-layer structure 10, which comprises Figure 1 a hook body structure 100 and a base material 11, wherein the hook body structure 100 comprises a support layer 110 and a cover layer 120, the support layer 110 comprises a base layer 111 and a plurality of hook body column groups (not shown in the figure), each hook body column group comprises a plurality of hook body units 113, and the hook body units 113 are integrally connected to one side of the base layer 111, and the base material 11 is arranged on the other side of the base layer 111 of the support layer 110. In this way, the combination of the hook body structure 100 and the base material 11 is beneficial to the application versatility of the multi-layer structure 10.
[0048] Furthermore, the substrate 11 may be a fabric. In addition, the substrate 11 may be elastic, and the substrate 11 may extend along at least one of the first extension direction D1 and the second extension direction D2. In this way, the multi-layer structure 10 may have multi-directional extensibility. In detail, the fabric may be a woven fabric, a knitted fabric, or a non-woven fabric. By using a fabric formed by an elastic material structure, the substrate 11 and the support layer 110 can be extended in coordination, thereby increasing the degree of freedom of the extension direction of the multi-layer structure 10. For example, the multi-layer structure 10 with high elasticity and high ductility can be applied to bags or shoes, or even highly elastic sportswear. In addition, the multi-layer structure 10 of the present invention is not limited to the combination of the hook structure 100 and the substrate 11. The material type or number of layers of the substrate 11 can be adjusted according to needs, but is not limited to this.
[0049] <Method for Manufacturing Hook Structure>
[0050] Please refer to Figure 8 , which is a flowchart of the steps of a method 20 for manufacturing a hook structure according to another embodiment of the present invention. Figure 8 It can be seen that the method 20 for manufacturing the hook structure includes step 21 , step 22 and step 23 .
[0051] Step 21 involves injection molding the first polymer material and the second polymer material to form a structural layer. The structural layer comprises a support layer and a cover layer, wherein the support layer comprises the first polymer material and the cover layer comprises the second polymer material. Specifically, the second polymer material of the cover layer can be a material with low elasticity and high hardness, which helps improve the mechanical strength and wear resistance of the hook structure. Furthermore, the first polymer material of the support layer can be an elastic material, imparting elasticity and extensibility to the support layer. Specifically, step 21 can be a two-shot injection molding process. Two-shot injection molding is a manufacturing technique in which two plastics are simultaneously injected into a mold. This technique allows for the production of complex parts with varying colors, materials, or properties in a single process. For example, the second polymer material in step 21 can be a rigid material such as polypropylene, while the first polymer material in step 21 can be an elastic material such as nylon, polyester, polyurethane, or polyolefin. This combination of rigid and elastic materials facilitates the production of hook structures with design versatility and functionality.
[0052] Step 22 is to cut the structural layer along the second extension direction to form a plurality of hook body array groups. In this way, the spacing between the hook body array groups can be adjusted, thereby increasing the degree of freedom of use of the hook body structure.
[0053] Step 23 involves cutting the structural layer along the first extension direction to form a plurality of hook units, resulting in a hook structure. This allows for adjustable spacing between the hook units, thereby increasing the variability of the hook structure's extension direction, facilitating its applicability. In particular, the multi-directionally extendable hook structure is ideal for use with undulating surfaces, as its extensibility helps the hook structure adhere to the surface.
[0054] In summary, the hook structure of the present invention includes a support layer and a covering layer, which can be made of the same or different materials. The manufacturing method of the hook structure of the present invention can include a double-injection molding step, wherein the double-injection molding step can produce the hook structure with a lower production complexity. The first polymer material of the support layer and the second polymer material of the covering layer can be selected based on the needs. This allows the mechanical strength, elasticity, and ductility of the hook structure to be adjusted, thereby improving the reliability and application versatility of the hook structure.
[0055] Although the present invention has been disclosed above in terms of implementation methods, it is not intended to limit the present invention. Anyone skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A hook structure, characterized in that: Having a first extension direction and a second extension direction, including: Support layer, including: grassroots; and a plurality of hook array groups, the plurality of hook array groups being spaced apart along the first extension direction, wherein each of the plurality of hook array groups comprises a plurality of hook units, the plurality of hook units of each of the plurality of hook array groups being spaced apart along the second extension direction, and the plurality of hook units being integrally connected to one side of the base layer; as well as The covering layer covers the plurality of hook units of the supporting layer and the plurality of surface areas of the base layer exposed on the side.
2. The hook structure according to claim 1, wherein: The plurality of hook column groups are arranged at equal intervals along the first extending direction.
3. The hook structure according to claim 1, wherein: The plurality of hook units of each of the plurality of hook column groups are arranged at equal intervals along the second extending direction.
4. The hook structure according to claim 1, wherein: The supporting layer is made of elastic material, and the supporting layer extends along at least one of the first extending direction and the second extending direction.
5. The hook structure according to claim 1, wherein: The supporting layer comprises a first polymer material, and the covering layer comprises a second polymer material.
6. The hook structure according to claim 5, characterized in that: The first polymer material is thermoplastic polyurethane, thermoplastic polystyrene elastomer or thermoplastic polyester elastomer.
7. A multi-layer structure, characterized in that: Include: The hook structure according to claim 1; and The substrate is arranged on the other side of the base layer of the support layer.
8. The multi-layer structure according to claim 7, wherein: The substrate is a fabric.
9. The multi-layer structure according to claim 7, wherein: The substrate is elastic and extends along at least one of the first extension direction and the second extension direction.