Support structure having adaptability to high bending

By using composite fiber and thermoplastic resin rods combined with a U-shaped structure, the problem of insufficient rigidity of elastic materials in bending structures is solved, achieving improved high bending performance and durability, and enhancing the stability and safety of the material.

WO2026097566A1PCT designated stage Publication Date: 2026-05-15HUIOU TECH DEV
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
HUIOU TECH DEV
Filing Date
2024-11-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing technologies, when elastic materials are used in bending structures, it is difficult to achieve both good bending performance and sufficient rigidity, which leads to easy material fatigue and potential fracture, as well as high manufacturing complexity and cost.

Method used

The rods are made of composite fiber and thermoplastic resin, combined with a U-shaped structure, and bent in three-dimensional space and fixed in shape by heating. The U-shaped structure is staggered in the bending part to distribute the pressure evenly and enhance the local rigidity and strength.

Benefits of technology

It achieves high bending performance without fracture in three-dimensional space, improves the elasticity, durability and support of materials, reduces fatigue and damage risk, and improves safety and stability.

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    Figure CN2024131267_15052026_PF_FP_ABST
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Abstract

A support structure having adaptability to high bending, comprising a bar member (10) and a bending portion (11). The bending portion (11) is an arc-shaped structure required for any part of the bar member (10), the bending portion (11) comprises at least one U-shaped structure (111), and the U-shaped structures (111) form a wave-like structure on the bending portion (11), so that the support structure can have structural strength and have adaptability to bending.
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Description

Support structure adapted to high bending Technical Field

[0001] This invention relates to a support structure, specifically to a support structure adapted to high bending and related personal items. Background Technology

[0002] In a wide variety of daily necessities, those that require high flexibility often use support mechanisms or elastic parts to replace the bending parts, or use elastic materials to make the bending parts. However, the contradiction between elasticity and rigidity is a common problem in curved structures. Elastic materials are usually used to achieve curved structures, which allows the material to have good bending performance, but cannot provide sufficient rigidity.

[0003] Support structure materials that require high flexibility typically need to be able to be bent repeatedly, but this can also make the materials prone to fatigue and eventually lead to breakage, especially under long-term or high-frequency use. The complexity of the manufacturing process is also a challenge. Some specially bent support structures may require special manufacturing techniques or equipment, which will also increase production costs and manufacturing cycles.

[0004] In view of this, developing a support structure that can adapt to high bending is the goal of development in related fields.

[0005] Summary of the Invention

[0006] To develop a support structure adaptable to high bending, the present invention provides a support structure adaptable to high bending, comprising:

[0007] A bar is bent in a two-dimensional space to form a frame or a curved structure.

[0008] A curved portion, wherein the frame or the curved structure is further concave in a three-dimensional space to form the frame or the curved structure having a curvature.

[0009] Two or more U-shaped structures are provided at least one location in the bend.

[0010] Two or more U-shaped structures are provided at least one location in the bend.

[0011] One end of the U-shaped structure forms an opening, and all the openings are arranged in the same direction in the curved portion.

[0012] One end of the U-shaped structure forms an opening, and the openings are staggered in the bend.

[0013] Furthermore, two or more of these U-shaped structures are continuously arranged in the bend.

[0014] Furthermore, the rod is used in a shoe sole, wherein the horizontal plane is below the shoe sole, wherein the shoe sole includes a forefoot portion and a heel portion, wherein the heel portion includes a heel area.

[0015] Furthermore, the curved portion includes a first curved portion and a second curved portion, wherein the first curved portion is disposed in the forefoot area, and the first curved portion is the rod material curved upward toward the horizontal plane; the second curved portion is disposed between the heel area and the heel portion, and the second curved portion is the rod material of the heel portion folded toward the heel area and the horizontal plane.

[0016] The bending angles of the first and second curved portions are between 0 and 180 degrees.

[0017] Furthermore, each of the openings is staggered within the first curved portion.

[0018] Furthermore, each opening is disposed in the second curved portion in the same direction, wherein the opening faces the outside of the second curved portion.

[0019] The rod is made of a composite fiber, which includes multiple fiber bundles and a thermoplastic resin covering the fiber bundles.

[0020] Based on the above, the present invention has the following advantages:

[0021] The rod is composed of composite fiber and thermoplastic resin. After heating, it can be bent in three-dimensional space without breaking and maintain a fixed shape. The U-shaped structure makes the rod adaptable to high bending requirements. For rods that need to be bent or deformed for a long time, the elasticity, durability and support of the rod are further improved.

[0022] The U-shaped structure distributes the pressure evenly across the rod, reducing localized stress concentration and thus lowering the risk of material fatigue and damage. When the rod is subjected to external impacts or vibrations, it can also effectively absorb energy, improving safety and further enhancing the stability and lifespan of the rod.

[0023] In this U-shaped structure, the opening enhances the rigidity and strength of a portion of the bar. Attached Figure Description

[0024] Figure 1 is a schematic diagram of a preferred embodiment of the present invention; and

[0025] Figure 2 is a schematic diagram of a preferred embodiment of the present invention applied to a shoe sole.

[0026] Symbol explanation:

[0027] 10 bar stock

[0028] 11. Bend

[0029] 111 U-shaped structure

[0030] 112 opening

[0031] 113 First Bend

[0032] 114 Second Bend

[0033] A sole

[0034] A1 Forefoot Area

[0035] A2 heel area

[0036] A21 heel

[0037] P horizontal plane Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings:

[0040] Please refer to Figure 1, which shows a support structure adapted to high bending provided by the present invention, comprising a rod 10 and a bent portion 11.

[0041] The rod 10 is a composite fiber. The rod 10 is bent in a two-dimensional space corresponding to a horizontal plane P. The rod 10 can form a frame or a bent structure, so that the rod 10 can be used on any article.

[0042] The rod 10 includes multiple fiber bundles and a thermoplastic resin covering the fiber bundles. Furthermore, the composite fiber is heated to soften a local heated area to generate the curvature. At this time, the local heated area can be bent without breaking. The local area is bent in a three-dimensional space. After the local heated area cools, it forms a fixed shape and structure.

[0043] The fiber bundle is made of glass fiber, carbon fiber, micro steel fiber, natural fiber, synthetic fiber, metal fiber, ceramic fiber, or a combination of the above-mentioned fiber materials.

[0044] The thermoplastic resin comprises polyamide (PA), polypropylene (PP), polyester (PET), polycarbonate (PC), polyimide (PI), polytetrafluoroethylene (PTFE), polyethylene (PE), polystyrene (PS), polymethyl methacrylate (PMMA), polyoxymethylene (POM), polyurethane (PU), polyvinyl alcohol (PVA), vinylon, polystyrene (PES), polyetheretherketone (PEEK), polytetrafluoroethylene (PTFE), thermoplastic polyester elastomer (TPEE), thermoplastic polyester elastomer (TPEE), styrene-based elastomer (TPS), thermoplastic polyamide elastomer (PAE), or one or a combination of the above polymer materials.

[0045] The bending portion 11 includes a U-shaped structure 111 and an opening 112. The bending portion 11 is disposed at any part of the rod 10. The bending portion 11 is an arc surface or an arc-shaped structure that produces a curvature after the rod 10 is bent in the three-dimensional space.

[0046] The U-shaped structure 111 is a continuous wavy, uneven structure, created by softening the heated portion through heating. Furthermore, the U-shaped structure 111 is incorporated into the bend 11, retaining its curvature. This U-shaped structure enhances the overall performance of the support structure, enabling it to withstand high bending. Moreover, when a pressure perpendicular to the horizontal plane P is applied to the rod 10, it helps distribute the pressure more evenly across the U-shaped structure 111, reducing localized stress concentration and improving the rigidity and strength of the rod 10. Furthermore, when the rod 10 is subjected to external impact or vibration, the U-shaped structure 111 effectively absorbs energy, enhancing the durability and safety of the rod 10.

[0047] In this design, an opening 112 is formed at one end of the U-shaped structure. The openings 112 can be arranged unidirectionally or staggeredly at the point of maximum curvature of the bend 11 or throughout the entire bend 11. The apex of the U-shaped structure 111 experiences positive tensile stress under pressure, while the opening 112 experiences compressive stress or a smaller tensile stress under pressure. This allows the U-shaped structure 111 to effectively disperse stress under pressure and reduce material fatigue or damage that may be caused by stress concentration. Furthermore, the opening 112 can further enhance the elasticity of the rod 10, enabling the bend 11 to have better adaptability and durability under external loads.

[0048] Furthermore, the design of the U-shaped structure 111 can be adjusted according to actual needs to determine the number, size, and arrangement of the openings 112, thereby achieving optimal mechanical performance and structural stability. When the bar 10 is subjected to external forces of different directions or intensities during use, the U-shaped structure 111 can effectively distribute and regulate these forces, thereby improving the overall reliability and service life of the bar 10.

[0049] Furthermore, to further improve the performance of the rod 10, the thermoplastic resin can be thickened on one surface of the U-shaped structure 111 to enhance corrosion resistance and wear resistance. This allows the rod 10 to maintain good performance under various environmental conditions and extends its service life.

[0050] Please refer to Figure 2, which is a first preferred embodiment of the present invention. The rod 10 is used for a shoe sole A, wherein the horizontal plane P is below the shoe sole A, wherein the shoe sole A includes a forefoot portion A1 and a heel portion A2, wherein the heel portion A2 includes a heel area A21, further, the curved portion 11 includes a first curved portion 113 and a second curved portion 114, further, the first curved portion 113 is disposed in the forefoot area A1, the first curved portion 113 is the rod 10 concave upward toward the horizontal plane P, the second curved portion 114 is disposed between the heel area A2 and the heel portion A21, the second curved portion 114 is the rod 10 of the heel portion A21 folded toward the heel area A2 and the horizontal plane P, wherein the bending angle of the first curved portion 113 and the second curved portion 114 is between 0 degrees and 180 degrees.

[0051] Furthermore, the U-shaped structure 111 is provided in the first curved portion 113 and the second curved portion 114, wherein in the first curved portion 113, the adjacent openings 112 are staggered, and in the second curved portion 114, the adjacent openings 112 face outward in the same direction.

[0052] Furthermore, when the first curved portion 113 is subjected to pressure perpendicular to the horizontal plane P, the first curved portion 113 allows the forefoot portion A1 to better adapt to the natural curvature of a foot. Furthermore, the U-shaped structure 111 enhances the support of the first curved portion 113. At the same time, the opening 112 distributes the pressure evenly in the first curved portion 113, preventing the first curved portion 113 from becoming fatigued or deformed after prolonged use of the sole A.

[0053] Furthermore, when the second curved portion 114 is subjected to pressure perpendicular to the horizontal plane P, the U-shaped structure 111 reduces the pressure concentration on the second curved portion 114 and effectively disperses the pressure on the heel area A2 and the heel portion A21, thereby reducing the direct impact of the pressure on the heel portion A21. Furthermore, the opening 112 provides an inner protective force for the second curved portion 114, thereby reducing the risk of breakage of the second curved portion 114. At the same time, the opening 112 provides an outer elastic force for the second curved portion 114. The U-shaped structure 111 allows the sole A to adapt more flexibly to the movement of the foot when walking or running, thereby improving the functionality of the sole A and providing better cushioning.

[0054] The rod 10 can be manufactured to the shape of the target to which it is applied, and the manufacturing methods include die pressing, 3D printing, thermoforming and injection molding.

[0055] Based on the above, the present invention has the following advantages:

[0056] The rod 10 is composed of composite fiber and thermoplastic resin. After heating, it can be bent in three-dimensional space without breaking and maintain a fixed shape. The U-shaped structure 111 enables the rod 10 to adapt to high bending requirements. For the rod 10 that needs to be bent or deformed for a long time, the elasticity, durability and support of the rod are further improved.

[0057] The U-shaped structure 111 distributes the pressure evenly on the rod 10, reducing local stress concentration and thus reducing the risk of material fatigue and damage. When the rod 10 is subjected to external impact or vibration, it can also effectively absorb energy, improve safety, and further enhance the stability and lifespan of the rod 10.

[0058] In the U-shaped structure 111, the opening 112 enhances the rigidity of a portion of the rod 10 and strengthens that portion.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A support structure adaptable to high bending, characterized in that, It includes: A bar is bent in a two-dimensional space to form a frame or a curved structure. A curved portion, wherein the frame or the curved structure is further concave in a three-dimensional space to form the frame or the curved structure having a curvature. Two or more U-shaped structures are provided at least one location in the bend.

2. The support structure with adaptability to high bending as described in claim 1, characterized in that, An opening is formed at one end of the U-shaped structure, and all openings are arranged in the same direction at the bend.

3. The support structure with adaptability to high bending as described in claim 2, characterized in that, An opening is formed at one end of the U-shaped structure, and the openings are staggered in the bend.

4. The support structure with adaptability to high bending as described in claim 2 or 3, characterized in that, Two or more of these U-shaped structures are continuously arranged in the bend.

5. The support structure with adaptability to high bending as described in claim 4, characterized in that, The rod is used in a shoe sole, wherein the horizontal plane is below the shoe sole, wherein the shoe sole includes a forefoot portion and a heel portion, wherein the heel portion includes a heel area.

6. The support structure with adaptability to high bending as described in claim 5, characterized in that, The curved portion includes a first curved portion and a second curved portion, wherein the first curved portion is disposed in the forefoot area, and the first curved portion is the rod material that is concave upward toward the horizontal plane; the second curved portion is disposed between the heel area and the heel portion, and the second curved portion is the rod material of the heel portion that is folded toward the heel area and the horizontal plane.

7. The support structure with adaptability to high bending as described in claim 6, characterized in that, The bending angles of the first and second curved portions are between 0 and 180 degrees.

8. The support structure with adaptability to high bending as described in claim 7, characterized in that, The U-shaped structure is provided at the first bend and the second bend.

9. The support structure with adaptability to high bending as described in claim 8, characterized in that, Each of the openings is staggered in the first curved portion.

10. The support structure with adaptability to high bending as described in claim 9, characterized in that, Each opening is arranged in the same direction on the second curved portion, wherein the opening faces the outside of the second curved portion.

11. The support structure with adaptability to high bending as described in claim 1, characterized in that, The rod is made of a composite fiber, which includes multiple fiber bundles and a thermoplastic resin covering the fiber bundles.