Shoe insole and shoe piece with shoe insole

By designing elastic plates connected by multiple hexagonal elastic pipe fittings in the midsole of the shoe, the problem that existing footwear midsoles are difficult to have both cushioning and high rebound characteristics is solved, and the height of the midsole of the shoe is achieved Rigid and high rebound characteristics improve running smoothness and efficiency.

CN119302489APending Publication Date: 2025-01-14POU CHEN CORPORATION
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Patent Information

Application Number
CN202410733266.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-07-11
Filing Date
2024-06-07
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

Existing midsoles of footwear are difficult to have both comfort, cushioning and high rebound characteristics, especially in rapid movement and performance decreases.

Method used

A midsole of shoe is designed, including a midsole body and an elastic plate extending along the length direction. The elastic plate is connected by a plurality of elastic pipe fittings with hexagonal cross-sections. By setting multiple elastic pipe fitting plates in different parts, a high rigidity is formed. and high rebound characteristics.

Benefits of technology

Through the design of the elastic plate, the midsole of the shoe can effectively absorb impact, provide cushioning, and generate upward rebound force when the center of gravity is transferred, improving running smoothness and efficiency.

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Abstract

A shoe insole comprises an insole body and an elastic plate. The elastic plate is arranged on the insole body in a manner of extending in the length direction and comprises a plurality of elastic pipe fittings which are integrally connected in the length direction, and each elastic pipe fitting extends in the width direction perpendicular to the length direction; due to the fact that the elastic plate is formed by integrally connecting the multiple elastic pipe fittings in the length direction, the elastic plate has the relatively high rigidity and the high resilience characteristic, and the shoe insole can have the buffering characteristic and the high resilience characteristic by placing the elastic plate into the insole body.
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Description

Technical Field

[0001] The invention relates to a component of footwear, in particular to a midsole and a shoe component having the midsole. Background Art

[0002] In existing footwear, many midsoles are made of EVA, foaming materials or 3D printing technology. Although these materials or technologies can achieve changes in hardness, they are difficult to achieve both comfort, cushioning and rebound characteristics in terms of sports performance. The application of a single material or structure is also difficult to achieve the effect of improving smoothness.

[0003] EVA and foam materials usually provide good cushioning effect and can reduce the impact when stepping on the pedals, but they have poor rebound properties and cannot effectively rebound and provide rapid energy transfer. This may lead to reduced performance during exercise, especially in sports that require rapid rebound and propulsion, such as fast running or jumping.

[0004] 3D printing technology can produce complex structures and shapes, but it also faces the limitations of a single material or structure. Although the hardness of the structure can be adjusted as needed, it is still difficult to achieve the ideal combination of comfort, cushioning and rebound characteristics. Summary of the invention

[0005] An object of the present invention is to provide a shoe midsole having both cushioning and high rebound properties.

[0006] The shoe midsole of the present invention comprises a midsole body and an elastic plate. The elastic plate is arranged along the length direction of the midsole body and comprises a plurality of elastic tubes integrally connected along the length direction. Each elastic tube extends along a width direction perpendicular to the length direction.

[0007] In the shoe midsole of the present invention, each elastic tube is a tube with a roughly hexagonal cross-section, and each elastic tube has two connecting walls spaced apart along the length direction, two lower end walls respectively extending from the bottom ends of the connecting walls and connected to each other, and two upper end walls respectively extending from the top ends of the connecting walls and connected to each other.

[0008] BCPI-240229 Page 2 / 7

[0009] In the shoe midsole of the present invention, the connection point of the upper end wall of each elastic tube is a chamfer of an arc-shaped curved surface.

[0010] The shoe midsole of the present invention comprises a midsole body including a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plate being extendedly arranged on the heel portion and the midfoot portion along the length direction, a plurality of elastic tubes arranged on the heel portion among the elastic tubes being defined as a first plate portion, and a plurality of elastic tubes arranged on the midfoot portion among the elastic tubes being defined as a second plate portion, the second plate portion being connected to the first plate portion, and the second plate portion being gradually bent downward from one end connected to the first plate portion to one end away from the first plate portion.

[0011] In the shoe midsole of the present invention, an angle is formed between the first plate portion and the second plate portion, and the angle is between 0 degrees and -25 degrees.

[0012] In the shoe midsole of the present invention, the second plate portion is exposed downward outside the midfoot portion.

[0013] In the shoe midsole of the present invention, the elastic plate is extended along the length direction and arranged at the heel, the midfoot and the forefoot, and the plurality of elastic tubes arranged at the forefoot are defined as the third plate portion, and the third plate portion is connected to the second plate portion.

[0014] The shoe midsole of the present invention comprises a midsole body including a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plate being extendedly arranged on the midfoot portion and the forefoot portion along the length direction, a plurality of elastic tubes arranged on the midfoot portion among the elastic tubes being defined as a second plate portion, and a plurality of elastic tubes arranged on the forefoot portion among the elastic tubes being defined as a third plate portion, and the third plate portion being connected to the second plate portion.

[0015] The shoe midsole of the present invention has two elastic plates, the midsole body includes a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plates extend along the length direction and are respectively arranged at the heel portion and the forefoot portion, one of the elastic plates arranged at the heel portion is defined as a first plate portion, and the other elastic plate arranged at the forefoot portion is defined as a third plate portion.

[0016] Another object of the present invention is to provide a shoe component having a midsole that has both cushioning and high rebound properties.

[0017] The shoe with a midsole of the present invention comprises a shoe upper, a large sole, and a shoe midsole as described above. The shoe midsole is connected between the shoe upper and the large sole.

[0018] The effect of the present invention is that the elastic plate is composed of a plurality of elastic tubes integrally connected along the length direction, so that the elastic plate has relatively high rigidity and high rebound characteristics. Therefore, by placing the elastic plate into the midsole body, the shoe midsole can have both cushioning and high rebound characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0020] Figure 1 is a perspective exploded view of a first embodiment of a shoe component with a shoe midsole according to the present invention;

[0021] Figure 2 is a cross-sectional schematic diagram of a midsole of a shoe according to the first embodiment;

[0022] Figure 3 is a schematic top view of the midsole of the shoe in the first embodiment;

[0023] Figure 4 is a partial cross-sectional schematic diagram of an elastic plate of the midsole of the shoe of the first embodiment;

[0024] Figure 5 is a schematic cross-sectional view of a midsole of a second embodiment of a shoe component having a midsole according to the present invention;

[0025] Figure 6 is a schematic cross-sectional view of a midsole of a third embodiment of a shoe component having a midsole according to the present invention;

[0026] Figure 7 is a schematic cross-sectional view of a midsole of a fourth embodiment of a shoe component having a midsole according to the present invention;

[0027] Figure 8 is a cross-sectional schematic diagram of a midsole of a fifth embodiment of a shoe component having a midsole according to the present invention;

[0028] Fig. 9 is a cross-sectional schematic diagram of a midsole of a sixth embodiment of a shoe component having a midsole according to the present invention;

[0029] Fig.10 is a schematic cross-sectional view of a midsole of a seventh embodiment of a shoe component having a midsole according to the present invention; and

[0030] Fig.11 It is a cross-sectional schematic diagram of a midsole of an eighth embodiment of a shoe component with a midsole according to the present invention. DETAILED DESCRIPTION

[0031] Before the present invention is described in detail, it should be noted that similar components are denoted by the same reference numerals in the following description.

[0032] See also Figures 1 to 3 A first embodiment of a shoe component 1 with a midsole of the present invention comprises an upper 2, an outsole 3, and a midsole 4 connected between the upper 2 and the outsole 3.

[0033] The shoe midsole 4 includes a midsole body 41 and an elastic plate 42 .

[0034] The midsole body 41 includes a forefoot portion 411, a midfoot portion 412 integrally connected to the forefoot portion 411, and a heel portion 413 integrally connected to the midfoot portion 412. The forefoot portion 411 corresponds to the front sole of the runner, the midfoot portion 412 corresponds to the arch of the runner, and the heel portion 413 corresponds to the heel of the runner.

[0035] The midsole body 41 is a one-piece component made of at least one of ethylene / vinyl acetate copolymer (EVA), polyurethane (PU), and supercritical foaming, but is not limited to this. The midsole body 41 can also be made of thermoplastic polyurethane (TPU) material by lamination manufacturing.

[0036] The elastic plate 42 is embedded in the heel portion 413 and the midfoot portion 412 along a longitudinal direction X, and includes a plurality of elastic tubes 421 connected in one piece along the longitudinal direction X. Each elastic tube 421 extends along a width direction Y perpendicular to the longitudinal direction X, and each elastic tube 421 is a tube with a roughly hexagonal cross section. It is worth noting that each elastic tube 421 can also be a quadrilateral, pentagonal, rhombus or circular tube, so it is not limited to this embodiment.

[0037] The elastic plate 42 is formed by combining at least one of the materials such as TPEE (polyether ester elastomer), polyester TPU (thermoplastic polyurethane), polyether TPU (thermoplastic polyurethane), PEBAX (elastic nylon), PP elastomer (ethylene propylene copolymer), and rubber with the midsole body 41 in a structural composite manner.

[0038] See also Figure 2 and Figure 4 Each elastic tube 421 has two connecting walls 422 spaced apart along the length direction X, two lower end walls 423 extending from the bottom ends of the connecting walls 422 and connected to each other, and two upper end walls 424 extending from the top ends of the connecting walls 422 and connected to each other. The connection of the upper end walls 424 is a chamfer of an arc-shaped curved surface.

[0039] It is worth noting that the plurality of elastic tubes 421 disposed at the heel portion 413 are defined as a first plate portion 425, and the plurality of elastic tubes 421 disposed at the midfoot portion 412 are defined as a second plate portion 426. The second plate portion 426 is connected to the first plate portion 425, and the second plate portion 426 is gradually bent downward from one end connected to the first plate portion 425 to one end away from the first plate portion 425.

[0040] See also Figure 2 and Figure 4 It is worth noting that the first plate portion 425 is arranged in the heel portion 413 approximately parallel to the upper surface of the heel portion 413, and the upper surface of the heel portion 413 presents a structure of high rear and low front along the length direction X, so that when the shoe member 1 with a midsole (see Figure 1 ) is placed flat on a ground (not shown), the angle between the first plate portion 425 and the ground is about -10 degrees. The first plate portion 425 and the second plate portion 426 form an angle θ, which is between 0 degrees and -25 degrees, preferably between -5 degrees and -10 degrees.

[0041] The runner's foot contact period is divided into three stages: weight-bearing period, mid-stance period and end-stance period. The weight-bearing period is the period from the initial contact of the runner's heel to the contact of the forefoot. The mid-stance period is the period from the runner's foot flat (the heel and forefoot are both flat on the ground) to the heel leaving the ground. The end-stance period is the period from the heel leaving the ground to the toes leaving the ground.

[0042] When a runner runs while wearing the shoe component 1 with a midsole of the present invention, at the moment when the heel initially touches the ground, the angle between the midsole 4 and the ground is approximately 15 to 20 degrees. At this time, the angle between the first plate portion 425 and the ground is approximately 5 to 10 degrees, so the first plate portion 425 can effectively absorb the impact force of landing and provide cushioning.

[0043] During the weight-bearing period to the mid-stance period, when the runner's center of gravity moves from the heel to the forefoot, the second plate portion 426 gradually bends downward from the end connected to the first plate portion 425 to the end away from the first plate portion 425. When the runner's center of gravity falls on the arch of the foot, the second plate portion 426 is deformed by the downward thrust to generate an upward rebound force, which can guide the runner to drive forward and speed up the movement of the runner's center of gravity from the heel to the forefoot, thereby achieving the effect of saving effort and improving the smoothness of running.

[0044] At the end of the stance phase, since the elastic plate 42 is not provided, the forefoot portion 411 is softer and easier to bend, providing the runner with better flexibility to facilitate pushing.

[0045] See also Figure 5 , which is a second embodiment of the shoe component 1 with a shoe midsole according to the present invention, similar to the first embodiment ( Figure 5 The second embodiment differs from the first embodiment in that the second plate portion 426 is exposed downward outside the midfoot portion 412. Therefore, in the mid-stance state, when the center of gravity of the runner falls on the arch of the foot, the second plate portion 426 is pushed downward and directly hits the outsole 3 (see FIG. Figure 1 ) to produce a greater upward rebound force, which makes the effect of guiding the runner forward more significant and makes the runner's center of gravity move from the heel to the forefoot faster.

[0046] BCPI-240229 Page 6 / 7

[0047] See also Figure 6 , which is a third embodiment of the shoe component 1 with a shoe midsole according to the present invention, similar to the first embodiment ( Figure 6 The upper 2 and the outsole 3 are omitted in the third embodiment. The difference between the third embodiment and the first embodiment is that the elastic plate 42 is extendedly arranged on the heel portion 413, the midfoot portion 412 and the forefoot portion 411 along the length direction X. The elastic tubes 421 of the elastic plate 42 are defined as a third plate portion 427, which is connected to the second plate portion 426, and the angle between the second plate portion 426 and the first plate portion 425 is less than 180 degrees. By arranging the third plate portion 427 on the forefoot portion 411, the runner can be assisted to push forward at the end of the stance.

[0048] See also Figure 7 , which is a fourth embodiment of the shoe component 1 with a shoe midsole of the present invention, which is similar to the third embodiment. The difference between the fourth embodiment and the third embodiment is that the elastic plate 42 of the fourth embodiment does not have the first plate portion 425, but only has the second plate portion 426 and the third plate portion 427.

[0049] See also Figures 8 to 10 , which are a fifth embodiment, a sixth embodiment, and a seventh embodiment of the shoe component 1 with a shoe midsole of the present invention, the elastic plate 42 can only have one of the first plate portion 425, the second plate portion 426 or the third plate portion 427 respectively.

[0050] See also Fig.11 , which is an eighth embodiment of the shoe component 1 with a midsole of the present invention, the midsole 4 includes two elastic plates 42, which extend along the length direction X and are respectively arranged on the heel portion 413 and the forefoot portion 411, and one of the elastic plates 42 arranged on the heel portion 413 is defined as a first plate portion 425, and the other elastic plate 42 arranged on the forefoot portion 411 is defined as a third plate portion 427.

[0051] Through the third to eighth embodiments, it can be understood that the shoe component 1 with a midsole of the present invention can adjust the location or quantity of the elastic plate 42 according to needs, which is in line with the creative spirit of the present invention.

[0052] In summary, the shoe component 1 with a midsole of the present invention is composed of a plurality of elastic tubes 421 with hexagonal cross-sections connected in an integral manner along the length direction X, so that the elastic plate 42 has relatively high rigidity and high rebound characteristics. Therefore, by placing the elastic plate 42 into the midsole body 41, the midsole 4 can have both buffering and high rebound characteristics. In addition, the second plate portion 426 is gradually bent downward from one end connected to the first plate portion 425 to the end away from the first plate portion 425. When the runner's center of gravity falls on the arch of the foot, the second plate portion 426 is deformed by the downward thrust to generate an upward rebound force, which can guide the runner to drive forward and accelerate the speed at which the runner's center of gravity moves from the heel to the forefoot, so as to achieve the effect of saving effort and improving the smoothness of running, so that the purpose of the present invention can be achieved.

[0053] However, the above is only an embodiment of the present invention and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A shoe midsole, characterized in that: It contains midsole body; and The elastic plate is arranged on the midsole body in an extending manner along the length direction, and comprises a plurality of elastic tubes integrally connected along the length direction, each of the elastic tubes extending in a width direction perpendicular to the length direction.

2. The shoe midsole according to claim 1, characterized in that: Each elastic tube is a tube with a roughly hexagonal cross-section, and each elastic tube has two connecting walls spaced apart along the length direction, two lower end walls extending from the bottom ends of the connecting walls and connected to each other, and two upper end walls extending from the top ends of the connecting walls and connected to each other.

3. The shoe midsole according to claim 2, characterized in that: The connection point of the upper end wall of each elastic tube is a chamfer of an arc-shaped curved surface.

4. The shoe midsole according to claim 1, characterized in that: The midsole body includes a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plate is extended along the length direction and is arranged on the heel portion and the midfoot portion, a plurality of elastic tubes arranged on the heel portion among the elastic tubes are defined as a first plate portion, and a plurality of elastic tubes arranged on the midfoot portion among the elastic tubes are defined as a second plate portion, the second plate portion is connected to the first plate portion, and the second plate portion is gradually bent downward from one end connected to the first plate portion to an end away from the first plate portion.

5. The shoe midsole according to claim 4, characterized in that: An included angle is formed between the first plate portion and the second plate portion, and the included angle is between 0 degrees and -25 degrees.

6. The shoe midsole according to claim 4, characterized in that: The second plate portion is exposed downwardly outside the midfoot portion.

7. The shoe midsole according to claim 4, characterized in that: The elastic plate is extended along the length direction and arranged at the heel, the midfoot and the forefoot. The plurality of elastic tubes arranged at the forefoot are defined as a third plate portion, and the third plate portion is connected to the second plate portion.

8. The shoe midsole according to claim 1, characterized in that: The midsole body includes a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plate is extended along the length direction and is arranged on the midfoot portion and the forefoot portion, a plurality of elastic tubes arranged on the midfoot portion among the elastic tubes are defined as a second plate portion, and a plurality of elastic tubes arranged on the forefoot portion among the elastic tubes are defined as a third plate portion, and the third plate portion is connected to the second plate portion.

9. The shoe midsole according to claim 1, characterized in that: The number of the elastic plates is two, wherein the midsole body includes a forefoot portion, a midfoot portion integrally connected to the forefoot portion, and a heel portion integrally connected to the midfoot portion, the elastic plates extend along the length direction and are respectively arranged at the heel portion and the forefoot portion, one of the elastic plates arranged at the heel portion is defined as a first plate portion, and another of the elastic plates arranged at the forefoot portion is defined as a third plate portion.

10. A shoe component having a midsole, characterized in that: It contains vamp; outsole; and The shoe midsole is connected between the upper and the outsole, and includes a midsole body and an elastic plate. The elastic plate is extended along the length direction and is arranged on the midsole body, and includes a plurality of elastic tubes integrally connected along the length direction, and each elastic tube extends along a width direction perpendicular to the length direction.