HOOK STRUCTURE, MULTI-LAYERED STRUCTURE AND MANUFACTURING METHOD OF HOOK STRUCTURE

Description

RELATED APPLICATIONS

This application claims priority to Taiwan Application Serial Number 113144008, filed Nov. 15, 2024, which is herein incorporated by reference.

BACKGROUND

Technical Field

The present disclosure relates to a hook structure, a multi-layered structure and a manufacturing method of the hook structure. More particularly, the present disclosure relates to an injection-molded hook structure, a multi-layered structure and a manufacturing method of the injection-molded hook structure.

Description of Related Art

In the daily life, a conventional way of fixing two objects is sewing or gluing. If sewed objects or glued objects are separated, there will be irreversible damages, such as thread holes left after removing sutures or damages on the glued surface after separating the glued objects. Moreover, the conventional way of fixing two objects cannot meet the changing needs of repeatedly fixing and repeatedly separating.

In order to disassembly the fixed objects by the needs and reduce the damages formed by separating the fixed objects, and a new generation fixation which is a hook structure design is developed. The hook structures with corresponding shapes are respectively disposed on two objects that are to be fixed, and the hook structures with corresponding shapes are pressed face to face so as to achieve a fixed state, and can be separated as needed. However, conventional hook structures will be deformed after repeatedly fixing and repeatedly separating, which will weaken the fixing performance.

For all these reasons, it is necessary to develop a hook structure that can easily fix objects and can be separated conveniently, and the durability and the structure stability of the hook structure can be improved at the same time.

SUMMARY

According to one aspect of the present disclosure, a hook structure has a first extending direction and a second extending direction, and includes a supporting layer and a covering layer. The supporting layer includes a base layer and a plurality of hook columns, the hook columns are arranged at intervals along the first extending direction, each of the hook columns includes a plurality of hook units, the hook units of each of the hook columns are arranged at intervals along the second extending direction, and the hook units are integrally connected to one side of the base layer. The covering layer covers the hook units of the supporting layer and a plurality of surface areas of the base layer exposed on the side of the base layer.

According to another aspect of the present disclosure, a multi-layered structure includes the hook structure of the aforementioned aspect and a substrate disposed on the other side of the base layer of the supporting layer.

According to still another aspect of the present disclosure, a manufacturing method of a hook structure includes steps as follows. A structure layer is formed by injection-molding a first polymer material and a second polymer material, the structure layer includes a supporting layer and a covering layer, the supporting layer includes the first polymer material, and the covering layer includes the second polymer material. The structure layer is cut along the second extending direction so as to form a plurality of hook columns. The structure layer is cut along the first extending direction so as to form a plurality of hook units to obtain the hook structure.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:

FIG. 1 is a three-dimensional view of a hook structure according to Example 1 of one Embodiment of the present disclosure.

FIG. 2 is a cross-sectional view of the hook structure according to Example 1 of the Embodiment in FIG. 1.

FIG. 3 is a cross-sectional view of a hook structure according to Example 2 of the Embodiment of the present disclosure.

FIG. 4 is a cross-sectional view of a hook structure according to Example 3 of the Embodiment of the present disclosure.

FIG. 5 is a cross-sectional view of a hook structure according to Example 4 of the Embodiment of the present disclosure.

FIG. 6 is a three-dimensional view of a multi-layered structure according to another Embodiment of the present disclosure.

FIG. 7 is another three-dimensional view of the multi-layered structure according to the Embodiment in FIG. 6.

FIG. 8 is a flow chart of a manufacturing method of a hook structure according to still another Embodiment of the present disclosure.

DETAILED DESCRIPTION

The present disclosure will be further exemplified by the following specific embodiments. However, the embodiments can be applied to various inventive concepts and can be embodied in various specific ranges. The specific embodiments are only for the purposes of description, and are not limited to these practical details thereof. In addition, some conventional structures and elements are illustrated in the drawings in a simple and schematic way, and repeated elements can be presented by the same reference numerals.

Hook Structure

FIG. 1 is a three-dimensional view of a hook structure 100 according to Example 1 of one Embodiment of the present disclosure, and FIG. 2 is a cross-sectional view of the hook structure 100 according to Example 1 of the Embodiment in FIG. 1. In FIG. 1 and FIG. 2, the hook structure 100 according to Example 1 has a first extending direction D1 and a second extending direction D2, and includes a supporting layer 110 and a covering layer 120, wherein the supporting layer 110 includes a base layer 111 and a plurality of hook columns (its reference numeral is omitted). The hook columns are arranged at intervals along the first extending direction D1, wherein each of the hook columns includes a plurality of hook units 113, the hook units 113 of each of the hook columns are arranged at intervals along the second extending direction D2, and the hook units 130 are integrally connected to one side of the base layer 111. The covering layer 120 covers the hook units 113 of the supporting layer 110 and a plurality of surface areas (not shown) of the base layer 111 exposed on the side of the base layer 111. Therefore, the structural integrity and the structural strength of the hook structure 100 can be improved. Moreover, it is favorable for the structural stability of the hook structure 100 by integrally connecting the hook units 113 to the base layer 111.

Furthermore, the hook columns can be arranged at intervals along the first extending direction D1 with an equidistant interval space. Further, the hook units 113 of each of the hook columns are arranged at intervals along the second extending direction D2 with an equidistant interval space. Therefore, the loading intensity under the stress and the resistance to external forces of the hook structure 100 can be improved. Moreover, the production efficiency can be improved by simplifying the manufacturing steps of the hook structure 100. In FIG. 2, each of the hook units 113 can be T-shaped, and a width of one end of each of the hook units 113 away from the base layer 111 is the maximum width of each of the hook units 113.

The supporting layer 110 can be made of an elastic material, and the supporting layer 110 can extend along at least one of the first extending direction D1 and the second extending direction D2. The supporting layer 110 can include a first polymer material, and the covering layer 120 can include a second polymer material. Therefore, the hook structure 100 can be applied to surfaces with different shapes, and the elastic supporting layer 110 can fit the shapes of the objects attached by the supporting layer 110 so as to enhance the shape adaptability of the hook structure 100. Moreover, the hardness of the first polymer material of the supporting layer 110 is different from the hardness of the second polymer material of the covering layer 120 so that the hook structure 100 can have both the elasticity and the mechanical strength, and it is favorable for the durability of the hook structure 100. Further, the first polymer material can be a thermoplastic polyurethane (TPU), a thermoplastic styrene (TPS) or a thermoplastic polyester elastomer (TPEE). Therefore, it is beneficial to improve the elongation and the resilience of the hook structure 100. Furthermore, the second polymer material can be nylon, polyester, polyurethane or polyolefin. Therefore, the abrasion resistance of the hook structure 100 can be improved.

Specifically, the supporting layer 110 can be tough and can be regarded as a core frame of the hook structure 100 to enhance the durability of the hook structure 100. In detail, each of the hook units 113 of the supporting layer 110 is in an asymmetrical T-shape, and it is favorable for the loading uniformity of the hook structure 100 and the shape maintenance of the hook units 113. Moreover, the structural asymmetry of the hook structure 100 can reduce the design complexity of production molds, and it is favorable for the demolding efficiency and the product yield rate.

Furthermore, the covering layer 120 covers the hook units 113 of the supporting layer 110 and corresponds to the shape of each of the hook units 113, and a thickness of the covering layer 120 can be adjusted on demand. The covering layer 120 can be a protecting layer to reduce the abrasion damage of the hook structure 100 after being used for a long time, and it is favorable for increasing the service life of the hook structure 100.

FIG. 3 is a cross-sectional view of a hook structure 200 according to Example 2 of the Embodiment of the present disclosure. The hook structure 200 according to Example 2 includes a supporting layer 210 and a covering layer 220, wherein the supporting layer 210 includes a base layer 211 and a plurality of hook columns (its reference numeral is omitted), and each of the hook columns includes a plurality of hook units 213. The hook structure 200 according to Example 2 is similar to the hook structure 100 according to Example 1, the difference is that the shape of each of the hook units 213 of the hook structure 200 is different from the shape of each of the hook units 113 of the hook structure 100. In FIG. 3, a width of one end of each of the hook units 213 of the hook structure 200 adjacent to the base layer 211 is the maximum width of each of the hook units 213, a width of each of the hook units 213 gradually decreases in a direction away from the base layer 211, and a width of one end of each of the hook units 213 away from the base layer 211 is the minimum width of each of the hook units 213. The covering layer 220 covers the hook units 213 and corresponds to the shape of each of the hook units 213, and the covering layer 220 extends from the end of each of the hook units 213 away from the base layer 211 to form an arc hook-shape. Therefore, the hook structure 200 beards forces in a consistent direction, applying the hook structure 200 to a connection structure is favorable for the disassembling convenience to disassembly the connection structure in a less-effort way, and the structural stability is maintained simultaneously.

FIG. 4 is a cross-sectional view of a hook structure 300 according to Example 3 of the Embodiment of the present disclosure. The hook structure 300 includes a supporting layer 310 and a covering layer 320, wherein the supporting layer 310 includes a base layer 311 and a plurality of hook columns (its reference numeral is omitted), and each of the hook columns includes a plurality of hook units 313. The hook structure 300 according to Example 3 is similar to the hook structure 100 according to Example 1, the difference is that the shape of each of the hook units 313 of the hook structure 300 is different from the shape of each of the hook units 113 of the hook structure 100. In FIG. 4, a width of one end of each of the hook units 313 of the hook structure 300 adjacent to the base layer 311 is the maximum width of each of the hook units 313, a width of each of the hook units 313 at the half-height is the minimum width of each of the hook units 313, and one end of each of the hook units 313 away from the base layer 311 is V-shaped and with two terminals. The covering layer 320 covers the hook units 313 and corresponds to the shape of each of the hook units 313, and the covering layer 320 extends from the two terminals of each of the hook units 313 to form an asymmetrical double-arc shape. Therefore, the bearing points of the hook structure 300 is more to increase the resistance of the hook structure 300 to external forces, and it is favorable for increase the hooking performance of the hook structure 300 on a connecting structure.

FIG. 5 is a cross-sectional view of a hook structure 400 according to Example 4 of the Embodiment of the present disclosure. In FIG. 5, The hook structure 400 according to Example 4 includes a supporting layer 410 and a covering layer 420, wherein the supporting layer 410 includes a base layer 411 and a plurality of hook columns (its reference numeral is omitted), and each of the hook columns includes a plurality of hook units 413. The hook structure 400 according to Example 4 is similar to the hook structure 100 according to Example 1, the difference is that the shape of the covering layer 420 of the hook structure 400 is different from the shape of the covering layer 120 of the hook structure 100. In FIG. 5, each of the hook units 413 can be T-shaped, and a width of one end of each of the hook units 413 away from the base layer 411 is the maximum width of each of the hook units 413, and the end of each of the hook units 413 is with two terminals. The covering layer 420 covers the hook units 413 and corresponds to the shape of each of the hook units 413, and the covering layer 420 extends from the two terminals of each of the hook units 413 towards the base layer 411 to form two protruding portions. Therefore, the mechanical strength of the hook structure 400 can be enhanced, and the resistance of the hook structure 400 to external forces can be improved.

Multi-Layered Structure

FIG. 6 is a three-dimensional view of a multi-layered structure 10 according to another Embodiment of the present disclosure, and FIG. 7 is another three-dimensional view of the multi-layered structure 10 according to the Embodiment in FIG. 6. In FIG. 1, FIG. 6 and FIG. 7, the multi-layered structure 10 according to another Embodiment of the present disclosure includes the hook structure 100 in FIG. 1 and a substrate 11, wherein the hook structure 100 includes the supporting layer 110 and the covering layer 120, wherein the supporting layer 110 includes the base layer 111 and a plurality of hook columns (its reference numeral is omitted), each of the hook columns includes the hook units 113, the hook units 113 are integrally connected to the side of the base layer 111, and the substrate 11 is disposed on the other side of the base layer 111 of the supporting layer 110. Therefore, the combination of the hook structure 100 and the substrate 11 is favorable for the application diversity of the multi-layered structure 10.

Moreover, the substrate 11 can be a fabric. Further, the substrate 11 can be elastic, the substrate 11 can extend along at least one of the first extending direction D1 and the second extending direction D2. Therefore, the multi-layered structure 10 can be extended in multiple directions. In detail, the fabric can be a woven fabric, a knitted fabric or a non-woven fabric. The substrate 11 and the supporting layer 110 can extend coordinately through using the fabric formed by elastic materials, and the degree of the extending freedom of the multi-layered structure 10 can be increased. For example, the multi-layered structure 10 with high elasticity and high extensity can be applied to bags, footwears or high-elastic sportswears. Furthermore, the multi-layered structure 10 of the present disclosure can be but not limited to the combination of the hook structure 100 and the substrate 11, and materials and layer number of the substrate 11 can be adjusted on demand, but is not limited thereto.

Manufacturing Method of Hook Structure

FIG. 8 is a flow chart of a manufacturing method of a hook structure 20 according to still another Embodiment of the present disclosure. In FIG. 8, the manufacturing method of the hook structure 20 includes step 21, step 22 and step 23.

In step 21, a structure layer is formed by injection-molding a first polymer material and a second polymer material. The structure layer includes a supporting layer and a covering layer, wherein the supporting layer includes the first polymer material, and the covering layer includes the second polymer material. In detail, the second polymer material of the covering layer can be a low elastic and high rigid material, and it is beneficial to improve the mechanical strength and the abrasion resistance of the hook structure. Further, the first polymer material of the supporting layer can be an elastic material to form the supporting layer with elasticity and extensity. Specifically, step 21 can provide a double-injection-molding step. The double-injection-molding step is a manufacturing technology to inject two plastics into a mold at the same time. The manufacturing technology is used for manufacturing a component having different colors, materials or functions in a single process. For example, the second polymer material in step 21 can be a rigid material, such as polypropylene, and the first polymer material in step 21 can be an elastic material, such as nylon, polyester, polyurethane or polyolefin. Therefore, it is favorable for manufacturing the hook structure with the design variability and the functionality through the combination of the rigid material and the elastic material.

In step 22, the structure layer is cut along the second extending direction so as to form a plurality of hook columns. Therefore, the distance between two of the hook columns can be adjusted so as to increase the degree of freedom of using the hook structure.

In step 23, the structure layer is cut along the first extending direction so as to form a plurality of hook units to obtain the hook structure. Therefore, a distance between two of the hook units can be adjusted so as to increase the variety of the extending directions of the hook structure, and it is favorable for the applicability of the hook structure. Especially, the hook structure can be used on objects and correspond to the shape of the objects, and the extensity of the hook structure is favorable for the hook structure attaching on the objects.

In conclusion, the hook structure of the present disclosure includes the supporting layer and the covering layer, and the material of the supporting layer and the material of the covering layer can be the same or different. The manufacturing method of the hook structure of the present disclosure can include a double-injection-molding step, wherein the hook structure can be manufactured with the manufacturing step with low complexity by the double-injection-molding step, and the types for the first polymer material of the supporting layer and the second polymer material of the covering layer can be chosen on demand. Therefore, the mechanical strength, elasticity and extensity of the hook structure can be adjusted, and it is favorable for improving the usage reliability and the application variety of the hook structure.

Although the present disclosure has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.

It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present disclosure without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the present disclosure cover modifications and variations of this disclosure provided they fall within the scope of the following claims.