A sole support plate

Abstract

The application relates to the field of shoes, in particular to a sole support plate. The prior art sole support plate has limited anti-torsion performance, and the anti-torsion performance is improved at the cost of the comfort of the foot. The sole support plate is characterized in that the sole support plate comprises an outer plate part and an inner plate part; the outer plate part and the inner plate part are integrally woven by carbon fiber yarn, and only the outer plate part is subjected to resin heat curing; the inner plate part is arranged at the corresponding position of the arch of the foot and surrounded by the outer plate part; and the outer plate part extends from the corresponding position of the rear part of the metatarsophalangeal joint to the corresponding position of the heel. The sole support plate can improve the anti-torsion performance of the shoe, does not affect the bending performance of the shoe, and can improve the comfort of the foot.

Description

Technical Field

[0001] This application relates to the field of footwear, specifically to a sole support plate. Background Technology

[0002] With societal development, more and more people are participating in sports. The high-intensity running, sudden stops, and changes of direction involved in sports generate significant torsional forces on the feet. To prevent sprains caused by excessive torsion, it's necessary to improve the torsional resistance of shoes. Current technology typically adds a uniformly thick square support plate to the sole to enhance torsional resistance. However, the support area of ​​a square support plate is limited and it's not suitable for the varying force, torsional resistance, and support requirements of different parts of the foot. Utility Model Content

[0003] The purpose of this application is to overcome the aforementioned defects or problems in the prior art and to provide a sole support plate that improves the torsional resistance of the sole.

[0004] To achieve the above objectives, the following technical solution is adopted:

[0005] A shoe sole support plate includes an outer plate portion and an inner plate portion; the outer plate portion and the inner plate portion are integrally woven from carbon fiber yarn, and only the outer plate portion is subjected to resin thermosetting; the inner plate portion is positioned corresponding to the arch of the foot and is surrounded by the outer plate portion, and the outer plate portion extends from a position corresponding to the posterior part of the metatarsophalangeal joint to a position corresponding to the heel.

[0006] Furthermore, the inner plate is provided with a number of perforated sections formed by carbon fiber yarns.

[0007] Furthermore, the outer panel has an opening located at the heel and opening towards the rear.

[0008] Furthermore, the outer edge of the outer plate and the edge where it intersects with the inner plate form a first protrusion.

[0009] Furthermore, the first protrusion is provided with a first injection groove extending along the extension direction of the first protrusion, the first injection groove accommodating resin for thermosetting.

[0010] Furthermore, the upper and / or lower surfaces of the shoe sole support plate are provided with a second protrusion in the front-to-back direction, and the second protrusion is made of resin.

[0011] Compared with existing technologies, the above solution has the following beneficial effects:

[0012] The first technical solution involves a sole support plate comprising an outer plate and an inner plate. The outer plate extends from the posterior position of the metatarsophalangeal joint to the corresponding position of the heel. During movement, the metatarsophalangeal joint frequently flexes. This technical solution's sole support plate extends from the posterior position of the metatarsophalangeal joint to the corresponding position of the heel, without a rigid support plate at the metatarsophalangeal joint location. This eliminates the rigid support plate that could affect the flexural properties of the metatarsophalangeal joint, thus improving the torsional resistance of the sole without compromising its flexural performance.

[0013] In this technical solution, the outer and inner plates of the sole support plate are integrally woven from carbon fiber yarn. This carbon fiber yarn can be woven according to the shape of the human foot, resulting in a larger support plate area compared to existing square support plates. The increased area of ​​the support plate leads to a corresponding increase in its lever arm and the generated torque under stress. When foot pressure is concentrated in one area, the sole tends to twist towards that area. Simultaneously, the support plate generates an anti-torsional torque during force transmission to prevent sole twisting, thus improving the sole's torsional resistance. When foot pressure is concentrated in the forefoot, the forefoot presses against the forefoot portion of the support plate. As force is transmitted from the forefoot to the heel, the sole support plate generates a torque that resists the relative twisting of the forefoot and heel, further enhancing the sole's torsional resistance. When the pressure on the sole of the foot is concentrated on the heel, the heel of the human body presses against the heel part of the support plate. As the force is transmitted from the heel part of the support plate to the forefoot, the sole support plate generates a torque that resists the relative torsion of the forefoot and heel parts of the shoe, thus improving the torsional resistance of the sole.

[0014] The outer and inner plates are woven from carbon fiber yarns in one piece, with only the outer plate undergoing resin thermosetting. The inner plate is positioned corresponding to the arch support and is surrounded by the outer plate. In this technical solution, the outer plate of the sole support plate becomes a rigid structure after resin thermosetting, while the inner plate does not undergo resin thermosetting and retains its original carbon fiber yarn woven structure. The carbon fiber yarn structure of the inner plate has better elasticity than the rigid structure of the outer plate.

[0015] Compared to existing support components with through holes in the arch area, this technical solution offers advantages because the outer and inner plates are integrally woven from carbon fiber yarns. This continuous weaving creates a unified structure of continuous fibers. Under stress, forces can be better transferred and transmitted across the entire support plate. When stress is applied to a specific area of ​​the outer plate, the force between the outer and inner plates can be better transmitted. The carbon fiber weave structure of the inner plate can also absorb and disperse some of the transmitted energy through deformation, preventing excessive stress concentration in the rigid outer plate, thus improving the fatigue resistance and durability of the support plate. Simultaneously, the carbon fiber yarn structure of the inner plate also provides support for the arch, preventing excessive arch collapse.

[0016] Compared to existing rigid support technologies, this technical solution addresses the issue that the human arch of the foot is not fixed during movement but also undergoes motion. The carbon fiber yarns in the inner plate maintain their original weave structure, allowing for some deformation and reducing discomfort and potential risks caused by excessive restriction of the arch. The inner plate absorbs some impact through elastic deformation, providing better cushioning and protection. On uneven surfaces, a rigid arch cannot effectively reflect changes in ground undulations, while the elasticity of the inner plate better reflects these changes.

[0017] The second technical solution features a perforated section formed by carbon fiber yarns on the inner plate. This perforation extends through the upper and lower surfaces of the inner plate, providing channels for air circulation. During exercise, the foot generates heat and water vapor. The existing square structure of the sole support plate obstructs airflow under the foot, leading to stuffiness after prolonged wear. This technical solution's perforated section on the support plate improves both torsional resistance and breathability. The perforated section is woven from carbon fiber yarns from the inner plate, which is located at the arch of the foot, a region with lower stress, thus not affecting the overall strength of the support plate.

[0018] The third technical solution involves an opening in the outer plate, located at the heel and opening backwards. Heel support sections at both ends of this opening provide support for the heel. Because the heel opening of the outer plate lacks a support plate, a portion of the heel can directly contact the elastic part of the sole, providing better cushioning.

[0019] The fourth technical solution involves forming a first protrusion at the outer edge of the outer panel and at the edge where the outer panel meets the inner panel. This first protrusion increases the thickness of the outer panel, thereby increasing the torsional strength of the support plate. Since the support plate experiences greater stress at the material boundary where the force is transferred from the outer panel to the inner panel, this first protrusion enhances strength and prevents damage at that location, while also better transferring force to the inner panel. Furthermore, the first protrusion at the edge where the outer panel meets the inner panel also prevents resin from entering the inner panel during resin injection, thus preventing the carbon fiber yarns in the inner panel from curing.

[0020] The fifth technical solution involves a first injection groove extending along the extension direction of the first protrusion, which contains thermosetting resin. The thickness of the first protrusion is greater than the thickness of other parts of the outer panel. To ensure uniform resin distribution within the first protrusion, the first injection groove is provided. During resin injection, the resin can enter the first protrusion from the first injection groove, resulting in a more uniform distribution within the first protrusion. During thermosetting, the first protrusion exhibits more uniform rigidity.

[0021] The sixth technical solution involves providing a second protrusion extending in a front-to-back direction on the upper and / or lower surfaces of the sole support plate. This second protrusion is made of resin and extends in a front-to-back direction, i.e., from the forefoot to the heel. It provides better support when the forefoot or heel is under stress, thereby improving the torsional resistance of the support plate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments, the accompanying drawings used are briefly described below:

[0023] Figure 1 This is a schematic diagram of an embodiment of the shoe sole support plate;

[0024] Figure 2 This is a schematic diagram of Embodiment 2 of the shoe sole support plate;

[0025] Figure 3 This is a schematic diagram of Embodiment 3 of the shoe sole support plate;

[0026] Figure 4 This is a schematic diagram of the blank for Embodiment 3 of the shoe sole support plate;

[0027] Figure 5 This is a schematic diagram of the first embodiment of the shoe sole support plate and the foot.

[0028] Explanation of main reference numerals: Forefoot 2; Arch 3; Heel 4; Outer plate 11; Inner plate 12; Hollowed-out portion 121; Opening 41; Heel support 42; First protrusion 111; First injection groove 112; Second protrusion 113; Second injection groove 114; First part 1; Second part 5; Positioning part 51; Positioning hole 52. Detailed Implementation

[0029] Unless otherwise specified, the terms “first,” “second,” or “third,” etc., in the claims and description are used to distinguish different objects and not to describe a particular order.

[0030] Unless otherwise specified, in the claims and description, the terms “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0031] Unless otherwise specified in the claims and description, the terms "fixed connection" or "fixed connection" shall be interpreted broadly to mean any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection by other means or components.

[0032] Unless otherwise specified, the terms “comprising,” “having,” and variations thereof in the claims and description shall mean “including but not limited to.”

[0033] In the claims and description, unless otherwise specified, the term "have" means that a technical feature that follows is part of a technical feature that precedes it.

[0034] The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

[0035] Example 1

[0036] See Figure 1 and Figure 5 , Figure 1 A schematic diagram of Embodiment 1 of the shoe sole support plate is shown. Figure 5 A schematic diagram of a foot and an embodiment of the sole support plate is shown. The support plate includes an outer plate portion 11 and an inner plate portion 12. The inner plate portion 12 is positioned corresponding to the arch of the foot and is surrounded by the outer plate portion 11. The outer plate portion 11 extends from the posterior position of the metatarsophalangeal joint to the corresponding position of the heel. During human movement, the metatarsophalangeal joint frequently undergoes flexion movements. Since the outer plate portion 11 extends from the posterior position of the metatarsophalangeal joint to the corresponding position of the heel, there is no rigid support plate at the sole position corresponding to the metatarsophalangeal joint. Therefore, the support plate does not affect the movement of the metatarsophalangeal joint during its movement.

[0037] The outer plate 11 and the inner plate 12 are integrally woven from carbon fiber yarn. The carbon fiber yarn is mechanically woven to meet the different needs of different parts of the human foot for stress, torsional resistance, and support. For example... Figure 1 As shown, the support plate in this embodiment is woven into a shape that tapers from the forefoot (2) to the arch (3) and then increases towards the heel (4), based on the size of the contact area between the human foot and the sole. This shape provides more support area than the square support plate of the prior art. With the increased area of ​​the support plate, its lever arm increases accordingly when subjected to force, resulting in a greater torque. When foot pressure is concentrated in one area, the sole tends to twist towards that area. Simultaneously, the support plate generates an anti-torsional torque during force transmission to prevent sole twisting, thus improving the torsional resistance of the sole.

[0038] The outer plate 11 and the inner plate 12 are integrally woven from carbon fiber yarns, and only the outer plate 11 undergoes resin thermosetting. The inner plate 12 is positioned inside the arch support 3 and is surrounded by the outer plate 11. In this technical solution, the outer plate 11 of the sole support plate becomes a rigid structure after resin thermosetting, while the inner plate 12 does not undergo resin thermosetting and retains its original carbon fiber yarn woven structure. The carbon fiber yarn structure of the inner plate 12 has better elasticity compared to the rigid structure of the outer plate 11.

[0039] Compared to the through-hole design of existing support components, the outer plate 11 and inner plate 12 are integrally woven from carbon fiber yarns, making them a continuous fiber structure. Under stress, the force can be transferred and transmitted more smoothly throughout the support plate. When a part of the outer plate 11 is stressed, the force between the outer plate 11 and inner plate 12 can be better transferred. The carbon fiber woven structure of the inner plate 12 can also absorb and disperse some of the transmitted energy through deformation, preventing excessive stress concentration in the rigid outer plate 11, improving the fatigue resistance and durability of the support plate. Simultaneously, the carbon fiber yarn structure of the inner plate 12 also provides support for the arch of the foot, preventing excessive arch collapse.

[0040] Compared to the overall rigid design of existing support components, the human foot arch is not fixed during exercise; it also moves. The carbon fiber yarns of the inner plate 12 maintain their original weave structure, allowing for some deformation and reducing discomfort and potential risks caused by excessive restriction of the arch. The inner plate 12 absorbs some impact force through elastic deformation, providing better cushioning protection. On uneven surfaces, the rigid arch section 3 cannot adapt well to changes in ground undulations; the elasticity of the inner plate 12 better copes with these changes.

[0041] The heel portion 4 is provided with an opening 41, which is located at the heel portion 4 and opens rearward. In this embodiment, as... Figure 1 As shown, the opening 41 of the heel portion 4 includes heel support portions 42 on both sides. The heel of the human foot is supported by the heel support portions 42 to improve torsional resistance, and the opening 41 allows the heel of the human foot to contact the elastic sole, which cushions the impact force on the heel and improves wearing comfort.

[0042] Example 2

[0043] The difference between Example 2 and Example 1 is that, as Figure 2As shown, the inner plate 12 has several perforated sections 121 formed by carbon fiber yarns. During human movement, the feet generate a large amount of heat and water vapor. The perforated sections 121 in the inner plate 12 provide channels for the flow of water vapor and heat, reducing the temperature and humidity of the feet and improving comfort.

[0044] A first protrusion 111 is formed at the outer edge of the outer panel portion 11 and the edge where the outer panel portion 11 meets the inner panel portion 12. The first protrusion 111 is provided with a first injection groove 112 extending along the extending direction of the first protrusion 111, and the first injection groove 112 accommodates resin for thermosetting. The thickness of the first protrusion 111 is greater than the thickness of other parts of the outer panel portion 11. In order to ensure that the resin is evenly distributed inside the first protrusion 111, it has good rigidity during the thermosetting process of resin injection into the outer panel portion 11. By providing the first injection groove 112 on the first protrusion 111, when resin is injected, the resin can enter the first protrusion 111 from the first injection groove 112, and be more evenly distributed inside the first protrusion 111. During the thermosetting process, the first protrusion 111 has better rigidity. In this embodiment, the first protrusion 111 protrudes downward along the lower surface of the outer panel portion 11. In other embodiments, the first protrusion 111 may also protrude upward along the upper surface of the outer panel portion 11 or protrude simultaneously along both the upper and lower surfaces.

[0045] The first protrusion 111 at the edge where the outer edge of the outer plate 11 meets the inner plate 12 also serves to block the resin from entering the inner plate 12 when resin is injected into the outer plate 11, thus preventing the carbon fiber yarn of the inner plate 12 from curing.

[0046] Example 3

[0047] The difference between Example 3 and Example 2 is that, as Figure 3 As shown, the sole support plate includes an outer plate portion 11, an inner plate portion 12, and a second protrusion 113. The outer plate portion 11 and the inner plate portion 12 are integrally woven from carbon fiber yarn, and the second protrusion is made of resin. The second protrusion 113 extends along the upper surface of the sole support plate in a front-to-back direction. The second protrusion 113 protrudes from the upper surface of the sole support plate, further improving the torsional resistance of the support plate. In other embodiments, the second protrusion 113 may protrude along the lower surface of the sole support plate or simultaneously protrude towards both the upper and lower surfaces of the sole support plate, thereby improving the torsional resistance of the support plate.

[0048] A method for manufacturing a shoe sole support plate is disclosed. The shoe sole support plate blank is integrally knitted using a knitting machine to create a first part 1 and a second part 5. The first part 1 includes an outer plate 11 and an inner plate 12, and the second part 5 includes a positioning part 51 and several positioning holes 52. The positioning part 51 is disposed on the outer side of a first protrusion 111 along the outer edge of the outer plate 11. Before resin injection and thermosetting, the support plate woven from carbon fiber yarn is a flexible structure. When placed in a mold for resin injection and thermosetting, it takes considerable time to adjust the support part to fit the mold. In this application, the support plate, when placed in the mold, matches the positioning components on the mold through the positioning holes 52. When the positioning holes 52 match the positioning components on the mold, each part of the support plate is also in the required position, improving production efficiency. Only the outer plate 11 undergoes resin thermosetting; the second part 5 remains a flexible carbon fiber structure, clearly distinguishing it from the outer plate 11, facilitating differentiation and cutting of the second part 5. Furthermore, the second part 5 is not subjected to resin injection and thermosetting, making cutting convenient.

[0049] A method for manufacturing a shoe sole support plate, see [link to documentation]. Figure 4 The shoe sole support plate blank is woven in one piece using a knitting machine, comprising a first part 1 and a second part 5. The first part 1 includes an outer plate 11 and an inner plate 12. A second injection groove 114 extending in the front-to-back direction is woven on the upper surface of the shoe sole support plate blank, and a third injection groove corresponding to the second injection groove 114 is provided on the mold. The second part 5 includes a positioning part 51 and several positioning holes 52. The positioning part 51 is provided on the outer side of the first protrusion 111 along the outer edge of the outer plate 11. The support plate blank woven from carbon fiber yarn is a flexible structure before resin injection and heat curing. When placed in the mold for resin injection and heat curing, it takes a considerable amount of time to adjust the support part to fit the mold. When this support plate blank is placed in the mold, it matches the positioning components on the mold through the positioning holes 52. When the positioning holes 52 match the positioning components on the mold, each part of the support plate is also in the required position, improving production efficiency. Resin is injected and thermo-cured only between the outer plate portion 11 and the second injection groove 114 and the third injection groove. After curing, the resin between the second injection groove 114 and the third injection groove forms a second protrusion. The second part 5 is still a flexible carbon fiber structure, which is clearly different from the outer plate portion 11, making it easy to distinguish and cut. The second part 5 is not thermo-cured with resin, making it easy to cut. The second protrusion 113 improves the torsional resistance of the shoe. Using resin for the second protrusion 113 can reduce the cost of carbon fiber yarn weaving and allows for easier design into various shapes.

[0050] The sole support plate of this application extends from the posterior position of the metatarsophalangeal joint to the corresponding position of the heel, improving torsional resistance without affecting flexural performance. The sole support plate includes an outer plate portion 11 and an inner plate portion 12, both integrally woven from carbon fiber yarn. The inner plate portion 12 is positioned corresponding to the arch of the foot and surrounded by the outer plate portion 11, and only the outer plate portion 11 is thermo-cured with resin. The inner plate portion 12 of this application has a certain degree of elasticity, which better transmits and disperses stress, providing better support and cushioning for the arch, improving torsional resistance while enhancing foot comfort.

[0051] The description of the above specification and embodiments is used to explain the scope of protection of this application, but does not constitute a limitation on the scope of protection of this application.

Claims

1. A shoe sole support plate, characterized in that, It includes an outer plate (11) and an inner plate (12); the outer plate (11) and the inner plate (12) are woven together from carbon fiber yarn, and only the outer plate (11) is heat-cured with resin; the inner plate (12) is set to correspond to the arch of the foot and is surrounded by the outer plate (11), and the outer plate (11) extends from the corresponding position behind the metatarsophalangeal joint to the corresponding position of the heel.

2. The shoe sole support plate as described in claim 1, characterized in that, The inner panel (12) is provided with a number of hollowed-out sections (121) formed by carbon fiber yarns.

3. A shoe sole support plate as described in claim 1, characterized in that, The outer panel (11) is provided with an opening (41), which is located at the heel part (4) and opens to the rear.

4. A shoe sole support plate as described in any one of claims 1 to 3, characterized in that, The outer edge of the outer plate portion (11) and the edge that intersects with the inner plate portion (12) form a first protrusion (111).

5. A shoe sole support plate as described in claim 4, characterized in that, The first protrusion (111) is provided with a first injection groove (112) along the extending direction of the first protrusion (111), the first injection groove (112) accommodating resin for thermosetting.

6. A shoe sole support plate as described in claim 5, characterized in that, The upper and / or lower surfaces of the shoe sole support plate are provided with a second protrusion (113) extending in the front-back direction, and the second protrusion (113) is made of resin.

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