A double-layer support plate cushioning sole

Abstract

The present invention relates to a double-layer support plate shock-absorbing sole, comprising a sole body, the sole body comprising a first midsole and a second midsole, a support plate being arranged between the first midsole and the second midsole, the support plate comprising a first support plate and a second support plate, the first support plate and the second support plate extending in the front-rear direction of the sole body, the second support plate being located above the first support plate, one end of the first support plate and one end of the second support plate being connected together, and a buffer space being formed between the first support plate and the second support plate. The second support plate of the present invention mainly plays a stabilizing supporting role, and the first support plate mainly plays a propulsion role. When under pressure, the first support plate and the second support plate can be deformed toward the buffer space, thereby improving the shock-absorbing performance and comfort of the present invention. The double-layer support plate can make the sole body more evenly stressed and smoothly transitioned when bent, while improving the stability of the sole body, thereby forming a strong sense of propulsion and reducing energy loss during exercise.

Description

Technical Field

[0001] The invention relates to a double-layer support plate shock-absorbing sole. Background Art

[0002] Sports shoes, such as marathon running shoes, usually include a sole and an upper. The sole is usually a multi-layer structure, generally including an outsole and a midsole composited on the outsole. The outsole is used to improve the wear resistance and anti-slip performance of the sole, for example, it can be made of rubber material, and the midsole can be made of some shock-absorbing elastic materials, such as EVA material, to weaken the reaction force of the ground. Marathon is a long-distance running sport. A pair of suitable running shoes can reduce the damage to the feet caused by running and improve running performance. In order to take into account the rebound performance and support performance of the sole, there is a type of sole on the market, in which a support plate is added to the midsole. The support plate can be, for example, a carbon fiber support plate. The carbon fiber support plate is usually made of multiple layers of carbon fiber pressed, and its hardness is greater than the midsole. It has a certain rigidity to resist the bending deformation of the sole, and it can rebound quickly after bending deformation. For example, in the Chinese utility model patent with authorization announcement number CN 212165086 U, entitled "A marathon running shoe", a marathon running shoe is disclosed, which includes a sole and an upper. The sole is divided into three parts: forefoot, arch, and heel. The sole includes a CPU outsole, an EVA midsole, and a carbon fiber plate embedded in the midsole. In the invention patent application with application publication number CN 112716098 A, entitled "A sole component and sports shoe for high-intensity running", a sole is also disclosed, which includes an upper midsole and a lower midsole, and a 3D full-length carbon plate is wrapped between the upper midsole and the lower midsole to form the midsole.

[0003] Although the existing sports shoe soles with carbon fiber plates can improve the support performance of the soles, they will also reduce the elasticity and shock-absorbing performance of the soles to a certain extent.

[0004] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which led to the emergence of this case. Summary of the invention

[0005] The purpose of the present invention is to provide a double-layer support plate shock-absorbing sole which is more comfortable to use, has good shock-absorbing performance and a stable structure.

[0006] In order to achieve the above object, the present invention adopts such technical solution:

[0007] A double-layer support plate shock-absorbing sole comprises a sole body, the sole body comprising a first midsole and a second midsole composited on the first midsole, a bendable and reboundable support plate is arranged between the first midsole and the second midsole, the side of the sole body corresponding to the outer side of the instep is the outer side, the side corresponding to the inner side of the instep is the inner side, the position of the sole body corresponding to the front part of the sole is the forefoot part, the position of the sole body corresponding to the heel is the heel part, and the position of the sole body corresponding to the arch of the foot is the arch part, the support plate comprises a first support plate and a second support plate, the first support plate and the second support plate extend in the front and rear directions of the sole body, the second support plate is located above the first support plate, one end of the first support plate and one end of the second support plate are connected together, and a buffer space is formed between the first support plate and the second support plate.

[0008] As a preferred embodiment of the present invention, a through hole for assisting deformation is provided on the second support plate, and the through hole penetrates from the upper surface of the second support plate to the buffer space.

[0009] As a preferred embodiment of the present invention, a buffer block extending downward is provided on the lower surface of the second midsole, and the buffer block extends from the through hole into the buffer space.

[0010] As a preferred embodiment of the present invention, the first support plate and the second support plate are arranged corresponding to the forefoot portion and / or the arch portion.

[0011] As a preferred embodiment of the present invention, the front end of the first support plate and the front end of the second support plate are connected together, and the rear end of the first support plate or the rear end of the second support plate is provided with an extension plate, which extends to the heel of the sole body.

[0012] As a preferred embodiment of the present invention, the first support plate and / or the second support plate is an arc-shaped plate with an opening upward.

[0013] As a preferred embodiment of the present invention, the rear end of the first support plate and the rear end of the second support plate are connected together, and the buffer space surrounded by the first support plate and the second support plate extends from the inner side of the sole body to the outer side of the sole body.

[0014] As a preferred embodiment of the present invention, a buffer gap is formed between the rear ends of the first support plate and the second support plate, and an extension plate extending toward the heel portion of the sole body is formed at the rear end of the second support plate, and a first wing plate and a second wing plate extending upward are provided on the extension plate, the first wing plate is arranged on the outer side of the sole body, the second wing plate is arranged on the inner side of the sole body, and the second midsole is clamped between the first wing plate and the second wing plate.

[0015] As a preferred embodiment of the present invention, the support plate is a carbon fiber plate or a nylon plate, and the hardness of the support plate is greater than the hardness of the first midsole and the hardness of the second midsole.

[0016] As a preferred embodiment of the present invention, the first midsole is an EVA midsole or a thermoplastic polyurethane midsole, the second midsole is an EVA midsole or a thermoplastic polyurethane midsole, and the lower surface of the first midsole is further compounded with a rubber outsole.

[0017] By adopting the technical solution of the present invention, a double-layer support plate is arranged between the first midsole and the second midsole, the second support plate mainly plays a stabilizing supporting role, the first support plate mainly plays a propulsion role, a buffer space is formed between the first support plate and the second support plate, and when under pressure, the first support plate and the second support plate can be deformed toward the buffer space, thereby improving the shock absorbing performance and the comfort of use of the present invention. While the double-layer support plate improves the stability of the sole body, it can make the force on the sole body more uniform and the transition smoother when it is bent, forming a strong sense of propulsion and reducing energy loss during exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the decomposed structure of the first embodiment of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a support plate in the first embodiment of the present invention.

[0020] Figure 3 This is a schematic structural diagram of the support plate at another angle according to the first embodiment of the present invention.

[0021] Figure 4 Schematic diagram of the structure of the second midsole in the first embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the top structure of the first embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the exploded structure of the second embodiment of the present invention (the large base is not shown in the figure).

[0024] Figure 7 It is a schematic structural diagram of a second embodiment of the present invention.

[0025] Figure 8 This is a schematic structural diagram of the second midsole according to the second embodiment of the present invention.

[0026] Fig. 9 Schematic diagram of the structure of the support plate in the second embodiment of the present invention.

[0027] In the figure:

[0028] First midsole 11 Second midsole 12

[0029] Forefoot 101 Arch 102

[0030] Heel 103 Inner side 104

[0031] Outer side 105 Mounting slot 111

[0032] Buffer block 121 First buffer block 1211

[0033] The second buffer block 1212 The third buffer block 1213

[0034] Support plate 30 First support plate 31

[0035] Second support plate 32 Buffer space 33

[0036] Through hole 34 First through hole 341

[0037] The second through hole 342 and the third through hole 343

[0038] Extension plate 35 Buffer gap 36

[0039] First wing plate 37 Second wing plate 38

[0040] Outsole 40 DETAILED DESCRIPTION

[0041] In order to further explain the technical solution of the present invention, it is described in detail below in conjunction with embodiments.

[0042] Reference Figures 1 to 9 A double-layer support plate shock-absorbing sole includes a sole body, the sole body includes a first midsole 11 and a second midsole 12 composited on the first midsole 11, a bendable and reboundable support plate 30 is provided between the first midsole 11 and the second midsole 12, during assembly, adhesive is coated on corresponding contact surfaces of the first midsole 11, the support plate 30 and the second midsole 12, and then the components are pressed together. The side of the sole body corresponding to the outer side of the instep is the outer side 105, the side corresponding to the inner side of the instep is the inner side 104, the position of the sole body corresponding to the front of the sole is the forefoot portion 101, the position of the sole body corresponding to the heel is the heel portion 103, and the position of the sole body corresponding to the arch is the arch portion 102. The support plate 30 includes a first support plate 31 and a second support plate 32, the first support plate 31 and the second support plate 32 extend in the front and rear directions of the sole body, the second support plate 32 is located above the first support plate 31, one end of the first support plate 31 and one end of the second support plate 32 are connected together, and a buffer space 33 is formed between the first support plate 31 and the second support plate 32.

[0043] As a preferred embodiment of the present invention, a through hole 34 for assisting deformation is provided on the second support plate 32, and the through hole 34 penetrates from the upper surface of the second support plate 32 to the buffer space 33. In the embodiment, the through hole 34 extends from the front end to the rear end of the forefoot portion 101 of the sole body, and the through hole 34 extends from one end of the sole body close to the inner side 104 to one end close to the outer side 105, and the through hole 34 occupies most of the area of ​​the second support plate 32. The large-area hollow design of the second support plate 32 is conducive to the rapid deformation of the second support plate 32 to form a large energy impact.

[0044] As a preferred embodiment of the present invention, a buffer block 121 extending downward is provided on the lower surface of the second midsole 12 , and the buffer block 121 extends from the through hole 34 into the buffer space 33 , specifically extending to close to the upper surface of the first support plate 31 , and the side wall of the buffer block 121 abuts against the hole wall of the through hole 34 .

[0045] In the present invention, the first support plate 31 and the second support plate 32 are disposed corresponding to one or more of the forefoot portion 101 , the arch portion 102 and the heel portion 103 . In an embodiment, the first support plate 31 and the second support plate 32 are disposed corresponding to the forefoot portion 101 .

[0046] As a preferred embodiment of the present invention, the front end of the first support plate 31 and the front end of the second support plate 32 are connected together, and the rear end of the first support plate 31 or the rear end of the second support plate 32 is provided with an extension plate 35, and the extension plate 35 extends to the heel portion 103 of the sole body. In an embodiment, the extension plate 35 is integrally formed at the rear end of the second support plate 32.

[0047] As a preferred mode of the present invention, the first support plate 31 and / or the second support plate 32 are arc-shaped plates with an opening facing upward. In the embodiment, the first support plate 31 and the second support plate 32 are both arc-shaped plates with an opening facing upward, the first support plate 31 has a larger curvature, and the second support plate 32 has a smaller curvature. The buffer space 33 is formed by the bending of the first support plate 31 and the second support plate 32, and the longitudinal section of the buffer space 33 is approximately a crescent shape with an opening facing upward. The upper surface of the first midsole 11 is provided with a downwardly extending mounting groove seat 111 to assist in the installation and fixation of the first support plate 31.

[0048] In the first embodiment of the present invention, the rear end of the first support plate 31 and the rear end of the second support plate 32 are connected together, and the buffer space 33 surrounded by the first support plate 31 and the second support plate 32 extends from the inner side 104 of the sole body to the outer side 105 of the sole body. In this embodiment, the first support plate 31 and the second support plate 32 form a closed loop structure, and the overall structure is more stable. The first support plate 31 and the second support plate 32 can be bent in conjunction, and when resetting, the first support plate 31 and the second support plate 32 can be pushed forward in conjunction.

[0049] In a second embodiment of the present invention, a buffer gap 36 is formed between the rear end of the first support plate 31 and the rear end of the second support plate 32, that is, the rear end of the first support plate 31 is not connected to the rear end of the second support plate 32, and the first support plate 31 and the second support plate 32 form an open ring structure. The rear end of the first support plate 31 is not restrained by the second support plate 32, and its bending is more flexible, which can make full use of the movement inertia during running, and the high rigidity and stability of the second support plate 32 can reduce the loss of inertial force during movement, thereby reducing energy loss during movement.

[0050] As a preferred embodiment of the present invention, the through hole 34 includes a first through hole 341 and a second through hole 342, the first through hole 341 is arranged corresponding to the inner side 104 of the sole body, the second through hole 342 is arranged corresponding to the outer side 105 of the sole body, and the first through hole 341 and the second through hole 342 are arranged corresponding to the forefoot portion 101.

[0051] As a preferred embodiment of the present invention, the through hole also includes a third through hole 343, and the third through hole 343 is arranged corresponding to the arch portion 102 of the sole body. The buffer block 121 includes a first buffer block 1211 arranged corresponding to the first through hole 341, a second buffer block 1212 arranged corresponding to the second through hole 342, and a third buffer block 1213 arranged corresponding to the third through hole 343.

[0052] In the present invention, the rear end of the second support plate 32 is formed with an extension plate 35 extending toward the heel portion 103 of the sole body, and the extension plate 35 is provided with a first wing plate 37 and a second wing plate 38 extending upward, the first wing plate 37 is arranged on the outer side 105 of the sole body, the second wing plate 38 is arranged on the inner side 104 of the sole body, and the second midsole 12 is sandwiched between the first wing plate 37 and the second wing plate 38. The first wing plate 37 and the second wing plate 38 can support the arch portion 102 and the heel portion 103 of the sole body, thereby reducing the risk of eversion and inversion when the sole body lands.

[0053] As a preferred embodiment of the present invention, the support plate is a carbon fiber plate or a nylon plate, and the hardness of the support plate is greater than the hardness of the first midsole 11 and the hardness of the second midsole 12. The carbon fiber plate is formed by a composite stack of multiple layers of carbon fiber cloth and epoxy resin, which is a commonly used material for existing soles, and its thickness can be, for example, 1 mm, and its hardness can be, for example, in the range of 64D-85D on the Shore A hardness. The nylon plate can have the same thickness and hardness, and the entire support plate can be integrally injection molded.

[0054] As a preferred embodiment of the present invention, the first midsole 11 is an EVA midsole or a thermoplastic polyurethane midsole (a popcorn sole on the market can be used), the second midsole 12 is an EVA midsole or a thermoplastic polyurethane midsole, and the lower surface of the first midsole 11 is also compounded with a rubber outsole 40.

[0055] The product form of the present invention is not limited to the embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. A double-layer support plate shock-absorbing sole, comprising a sole body, the sole body comprising a first midsole and a second midsole composited on the first midsole, a bendable and resilient support plate is arranged between the first midsole and the second midsole, a side of the sole body corresponding to the outer side of the instep is the outer side, a side corresponding to the inner side of the instep is the inner side, a position of the sole body corresponding to the front of the sole is the forefoot portion, a position of the sole body corresponding to the heel is the heel portion, and a position of the sole body corresponding to the arch of the foot is the arch portion, characterized in that: The support plate includes a first support plate and a second support plate, the first support plate and the second support plate extend in the front-rear direction of the sole body, the second support plate is located above the first support plate, one end of the first support plate and one end of the second support plate are connected together, and a buffer space is formed between the first support plate and the second support plate; A buffer gap is formed between the rear ends of the first support plate and the second support plate, and an extension plate extending toward the heel portion of the sole body is formed at the rear end of the second support plate, and a first wing plate and a second wing plate extending upward are provided on the extension plate, the first wing plate is arranged on the outer side of the sole body, and the second wing plate is arranged on the inner side of the sole body, and the second midsole is clamped between the first wing plate and the second wing plate.

2. A double-layer support plate shock-absorbing sole as claimed in claim 1, characterized in that: The second support plate is provided with a through hole for assisting deformation, and the through hole penetrates from the upper surface of the second support plate to the buffer space.

3. A double-layer support plate shock-absorbing sole as claimed in claim 2, characterized in that: A buffer block extending downward is provided on the lower surface of the second midsole, and the buffer block extends from the through hole into the buffer space.

4. The double-layer support plate shock-absorbing sole according to claim 1, characterized in that: The first support plate and the second support plate are arranged corresponding to the forefoot portion and / or the arch portion.

5. The double-layer support plate shock-absorbing sole according to claim 4, characterized in that: The front end of the first support plate and the front end of the second support plate are connected together, and the rear end of the first support plate or the rear end of the second support plate is provided with an extension plate, which extends to the heel portion of the sole body.

6. The double-layer support plate shock-absorbing sole according to claim 1, characterized in that: The first support plate and / or the second support plate is an arc-shaped plate with an opening upward.

7. The double-layer support plate shock-absorbing sole according to claim 1, characterized in that: The rear end of the first support plate and the rear end of the second support plate are connected together, and the buffer space surrounded by the first support plate and the second support plate extends from the inner side of the sole body to the outer side of the sole body.

8. The double-layer support plate shock-absorbing sole according to claim 1, characterized in that: The support plate is a carbon fiber plate or a nylon plate, and the hardness of the support plate is greater than the hardness of the first midsole and the hardness of the second midsole.

9. A double-layer support plate shock-absorbing sole according to any one of claims 1 to 8, characterized in that: The first midsole is an EVA midsole or a thermoplastic polyurethane midsole, the second midsole is an EVA midsole or a thermoplastic polyurethane midsole, and the lower surface of the first midsole is further compounded with a rubber outsole.

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