Sole supporting piece and shoe

Abstract

The invention discloses a shoe sole supporting piece and a shoe, and relates to the field of shoes. In the prior art, a supporting piece is additionally arranged in a shoe sole, the running speed of a user is increased, but when a child is in the growth and development stage, the requirements for the shoe sole supporting piece and a shoe are different. The shoe sole supporting piece comprises a half sole part corresponding to the half sole, an arch part corresponding to the arch and a heel part corresponding to the heel. The half sole part comprises three supporting parts, each supporting part is connected with the arch part and extends forwards to the half sole part, and each supporting part comprises a rib protruding out of the bottom face of the supporting part and extending in the front-back direction; the heel part is of a C-shaped structure, surrounds the outer side face and the rear side face of the heel from the arch part and is opened in the inner side face of the heel.

Description

Technical Field

[0001] The present application relates to the field of shoes, and in particular to a sole support and a shoe. Background Art

[0002] With the development of society, people's demand for functional shoes is increasing. In order to increase running speed, rigid parts are added to the soles of sports shoes. The rigid parts increase the bending stiffness of the shoes, thereby increasing running speed by reducing bending energy loss and shortening bending time. However, the bending stiffness of sports shoes in the prior art is too large. When children wear soles with excessively large rigid parts, the force applied to the feet will be changed, affecting the natural development of the arch of the foot, etc. Moreover, sports shoes in the prior art are only designed to increase the speed of straight-line running. When performing change-of-direction movements, sports shoes fail to provide effective lateral stability. The soles of sports shoes are thick, which increases the center of gravity of the human body when worn, affecting the torsional performance and making it easy to sprain when wearing them. Summary of the Invention

[0003] The purpose of the present application is to overcome the above-mentioned defects or problems in the background technology and to provide a sole support and shoe that meet the needs of running and improve lateral stability and torsional resistance.

[0004] In order to achieve the above objectives, the following technical solutions are adopted:

[0005] A sole support member, characterized in that it includes a forefoot portion corresponding to the forefoot, an arch portion corresponding to the arch of the foot, and a heel portion corresponding to the heel; the forefoot portion includes three support portions, each of which is connected to the arch portion and extends forward to the forefoot portion, and each of the support portions includes a rib protruding from its bottom surface and extending in the front-to-back direction; the heel portion has a C-shaped structure, which surrounds the lateral side and the rear side of the heel from the arch portion and opens to the medial side of the heel.

[0006] Furthermore, the C-shaped structure of the heel portion extends backward and upward from the outer side of the arch portion.

[0007] Furthermore, the lengths of the three support portions extending forward from the arch portion gradually decrease from the inner side to the outer side.

[0008] Furthermore, each of the support parts includes two ribs; the front sides of the two ribs of each support part are connected, and the rear sides of adjacent ribs of adjacent support parts are connected.

[0009] Furthermore, the innermost rib extends from the forefoot portion to the arch portion.

[0010] Furthermore, the heel portion includes a first protrusion connected to the arch portion and extending rearward to the heel portion.

[0011] Furthermore, the arch portion includes a first through hole and a second through hole, and the first through hole and the second through hole are located in the middle position of the arch portion.

[0012] A shoe, characterized in that it comprises a sole and any one of the above-mentioned sole support members, wherein the sole support member is located at the sole.

[0013] Furthermore, the sole includes an outsole, which abuts against the side of the rib and covers part of the forefoot and arch; and the C-shaped structure is connected to the outer side of the sole.

[0014] Furthermore, the bending stiffness of the shoe is equal to or less than 3.71 Nm.

[0015] Compared with the prior art, the above solution has the following beneficial effects:

[0016] The first technical solution is that the sole support includes a forefoot portion, which includes three support portions extending forward from the arch portion. The innermost support portion corresponds to the first metatarsophalangeal joint, which is subject to the greatest force when running forward. Therefore, the innermost support portion supports the first metatarsophalangeal joint alone, allowing the sole of the foot to exert force more smoothly. The middle support portion corresponds to the second and third metatarsophalangeal joints, which are the core areas of load-bearing and stability. The middle support portion enables the sole of the foot to play a better load-bearing and stability role. The outermost support portion corresponds to the fourth and fifth metatarsophalangeal joints, which provide balance and lateral support, especially support during change of direction. The lateral support portion can play a better role in balance and lateral support. The support portion includes ribs protruding from the bottom surface of the support portion and extending in the front-to-back direction. The ribs protrude from the bottom surface of the support portion, and the support portion and the ribs form a downwardly protruding three-dimensional structure. When a person changes direction while running, the foot applies pressure from the inside to the outside and from the top to the bottom of the shoe sole. The ground, in response to the pressure from the shoe, generates a reaction force, pushing the foot from the outside to the inside, thus achieving a change of direction. The forefoot portion of this technical solution includes ribs that protrude from its bottom surface and extend in the front-to-back direction. When changing direction, the foot applies pressure to the sole. When the forefoot is subjected to force, the force is transferred to the ribs, which then distribute the pressure to the sole in contact with it. This reduces the pressure on each part of the sole, minimizes deformation of the sole, and improves lateral stability.

[0017] The heel of the sole has a C-shaped structure, which surrounds the lateral and posterior sides of the heel from the arch of the foot and opens at the medial side of the heel. When changing direction while running, the human foot applies pressure from the inside to the outside and from the top to the bottom on the sole, causing the sole to move from the inside to the outside. This movement from the inside to the outside generates friction with the ground. The human heel is connected to the body parts above the heel, and its large mass leads to large inertia. When the sole surface and the ground stop relative to each other due to friction, the heel still has a tendency to move outward due to inertia. The heel surrounds the lateral and posterior sides of the heel. When the foot continues to move outward due to inertia, the heel hinders the outward movement of the heel, preventing foot sprains and improving the torsion resistance of the shoe. The opening on the inside of the heel restricts heel movement while providing space for the heel to move outward. This increases the interaction time between the foot and the heel, reduces pressure on the foot, and further protects the foot. The opening also provides space for the heel to move, avoiding excessive heel movement restrictions that could affect foot development.

[0018] The heel area is located on the lateral and rear sides of the heel. Most of the areas on the bottom side of the human heel corresponding to the sole support member are not equipped with strong support members. This means that the bottom side of the human heel mostly contacts the elastic sole. When running, the human body exerts significant pressure on the foot. In this embodiment, the human heel contacts the elastic sole, absorbing some of the energy through elastic deformation, reducing pressure on the foot and other parts of the body and providing better protection. The C-shaped structure also reduces the weight of the sole support member, improving wearing comfort.

[0019] In the second technical solution, the C-shaped structure of the heel extends backward and upward from the outer side of the arch. Foot sprains are often caused by eversion of the foot. The heel corresponds to the calcaneus bone. The heel protrudes from the upper surface of the arch, meaning it is closer to the upper part of the calcaneus, providing better support for the calcaneus and further improving torsional resistance.

[0020] In the third technical solution, the three support sections taper from medial to lateral, similar to the structure of the human foot. This reduces the weight and bending stiffness of the support components, minimizing the impact on children's growth.

[0021] In a fourth technical solution, the base plate of each support portion includes two ribs. These two ribs increase the number of stress points and the stress-bearing area, distributing pressure to more areas, reducing the pressure on individual parts of the sole and further improving lateral stability. The front sides of the two ribs in each support portion are connected, while the rear sides of adjacent ribs in adjacent support portions are connected. The ribs form a single unit, distributing stress more evenly, reducing deformation of the sole and improving lateral stability. Furthermore, only the primary stress-bearing areas are retained in the forefoot portion, and the two ribs further reinforce the sole support, preventing the sole support from having excessively low bending stiffness, which could compromise support.

[0022] In the fifth technical solution, the innermost ribs extend from the forefoot to the arch. When the human body changes direction, the forefoot primarily exerts pressure on the forefoot of the shoe sole. The ribs extending to the arch distribute this pressure, reducing forefoot deformation and improving lateral stability.

[0023] In a sixth technical solution, the first protrusion is located at the heel, corresponding to the base of the calcaneus bone, thereby improving heel support. The C-shaped structure of the heel surrounds the lateral and posterior sides of the heel, with the first protrusion located at the base corresponding to the calcaneus bone. While the C-shaped structure reduces heel pressure, it also provides support for the heel, enhancing support.

[0024] In the seventh technical solution, the force on the arch of the foot is mainly on the outside of the arch of the foot, and a first through hole and a second through hole are set in the middle of the arch of the foot, which does not affect the force on the arch of the foot and reduces the weight of the support member.

[0025] An eighth technical solution is a pair of shoes, the sole of which adopts the sole support member of the above technical solution, which improves the propulsion, lateral stability, and torsional resistance of the shoe and reduces the weight of the shoe.

[0026] In the ninth technical solution, the side of the ribs abuts the outsole, distributing the medial-lateral pressure exerted by the foot on the sole support to various parts of the outsole. The ribs disperse the medial-lateral reaction force exerted by the ground on the outsole to various parts of the support, reducing pressure there. The outsole covers a portion of the forefoot and arch, and the C-shaped structure connects to the outer side of the sole, allowing for a direct view of the sole support, satisfying consumers' pursuit of personalization.

[0027] The tenth technical solution is a shoe that utilizes the aforementioned sole support member, and the entire shoe has a bending stiffness of 3.71 Nm or less. Research has found that the critical bending stiffness of a child's foot is 3.71 Nm. If the bending stiffness of a shoe exceeds this value, it can affect a child's growth and development. The shoe of this technical solution has a bending stiffness of 3.71 Nm or less, which improves lateral stability and torsional resistance, reduces shoe weight, and increases running speed without affecting a child's growth and development. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment, the following briefly introduces the drawings required for use:

[0029] Figure 1 A schematic diagram of a sole support member from bottom to top;

[0030] Figure 2 A schematic diagram of the sole support member from the inside to the outside;

[0031] Figure 3 A schematic diagram of the sole support and the corresponding bones;

[0032] Figure 4 A schematic diagram of the sole of a shoe from bottom to top.

[0033] Description of main reference numerals:

[0034] Sole support member 1; forefoot portion 2; arch portion 3; heel portion 4; support portion 20; first support portion 21; second support portion 22; third support portion 23; ribs 25; first rib 251; second rib 252; third rib 253; fourth rib 254; fifth rib 255; sixth rib 256; first through hole 31; second through hole 32; first heel portion 41; second heel portion 42; opening 32; first protrusion 45. DETAILED DESCRIPTION

[0035] In the claims and the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0036] In the claims and the specification, unless otherwise specified, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are based on the directions and positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description, and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0037] In the claims and description, unless otherwise specified, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements.

[0038] In the claims and the description, unless otherwise defined, the terms "include", "have" and their variations mean "including but not limited to".

[0039] In the claims and the description, unless otherwise defined, the term "provided with" means that the technical feature thereafter is part of the technical feature therefor.

[0040] The technical solutions in the embodiments will be described clearly and completely below with reference to the accompanying drawings.

[0041] See also Figure 1 , Figure 1 The schematic diagram of the sole support from bottom to top is shown. Figure 1 shown.

[0042] The sole support member 1 is located on the sole of the shoe and includes a forefoot portion 2 corresponding to the forefoot of the human foot, an arch portion 3 corresponding to the arch of the human foot, and a heel portion 4 corresponding to the heel of the human foot. The forefoot portion 2 includes three support portions 20, which are connected to the arch portion 3 and extend forward to the forefoot portion 2. The three support portions 20 include a first support portion 21, a second support portion 22, and a third support portion 23 from the inside to the outside, and there is a gap between adjacent support portions 20. Figure 3 As shown, the first support portion 21 corresponds to part of the first metatarsal bone and the first metatarsophalangeal joint of the human body, the second support portion 22 corresponds to part of the second and third metatarsal bones and the second and third metatarsophalangeal joints of the human body, and the third support portion 23 corresponds to the fourth and fifth metatarsal bones and the fourth and fifth metatarsophalangeal joints of the human body. The forefoot portion 2 mainly bends at the position corresponding to the first metatarsophalangeal joint to the fifth metatarsophalangeal joint. The intervals between the three support portions 20 correspond to part of the metatarsophalangeal joints, reducing the force that needs to be overcome when the metatarsophalangeal joints bend, thereby reducing the bending stiffness. Different support portions 20 correspond to different functional areas of the sole of the foot. The first metatarsophalangeal joint corresponding to the first support portion 21 is subjected to the greatest force when running forward. Therefore, the first support portion 21 supports the first metatarsophalangeal joint alone, making the sole of the foot exert force more smoothly. The second support portion 22 corresponds to the second and third metatarsophalangeal joints, which are the core areas of load-bearing and stability. The second support portion 22 allows the sole of the foot to play a better load-bearing and stabilizing role. The third support section 23 corresponds to the fourth and fifth metatarsophalangeal joints, providing balance and lateral support, especially when changing direction. Each functional area has corresponding support, allowing the sole of the foot to exert force more smoothly.

[0043] Aside from the three support sections 20, the rest of the forefoot section 2 is hollowed out, reducing its weight and making it more comfortable to wear. The lengths of the three support sections 20 gradually decrease from the first support section 21, the second support section 22, and the third support section 23. The lengths of the support sections 20 corresponding to the different metatarsophalangeal joints of the human body decrease from the inside to the outside of the arch. The lengths of the support sections 20 are designed to fit the shape of the human forefoot, providing support for each metatarsophalangeal joint and reducing the weight of the sole support member 1.

[0044] Each support portion 20 includes two ribs 25 extending in the front-to-back direction. The first support portion 21 includes a first rib 251 and a second rib 252. The second support portion 22 includes a third rib 253 and a fourth rib 254. The third support portion 23 includes a fifth rib 255 and a sixth rib 256. The sole support member 1 of this embodiment is made of nylon, which has a lower hardness than carbon fiber, reducing the bending stiffness of the support member and making it more suitable for children.

[0045] The sole support member 1 is provided with ribs 25 protruding from its bottom surface. The ribs 25 extend in the front-to-back direction. The ribs 25 on the forefoot portion 2 corresponding to the bend of the metatarsophalangeal joint improve the bending stiffness, that is, the bending stiffness is reduced compared to the carbon fiber of the prior art, but the bending stiffness is not reduced too much, which affects the support of the foot. The front sides of the first rib 251 and the second rib 252 are interconnected, the rear sides of the second rib 252 and the third rib 253 are interconnected, the front sides of the third rib 253 and the fourth rib 254 are interconnected, the rear sides of the fourth rib 254 and the fifth rib 255 are interconnected, and the front sides of the fifth rib 255 and the sixth rib 256 are interconnected. The interconnection of the ribs can better disperse the force to various parts of the forefoot portion 2 of the sole, reduce the pressure at the main stress points, and prevent the sole from being subjected to excessive force and deformation, which affects the lateral stability of the shoe. The first rib 251 extends to the arch portion 3 , distributing the pressure on the forefoot portion 2 to the arch portion, further distributing the pressure on the sole, reducing deformation of the sole, and improving lateral stability.

[0046] The arch portion 3 is provided with a first through hole 31 and a second through hole 32, and the two through holes are located in the middle of the arch portion 3. The force on the human foot in the arch portion 3 is mainly applied on the outside of the arch portion 3, and the middle of the arch portion 3 is less stressed. The first through hole 31 and the second through hole 32 are located in the middle of the arch portion 3. Without affecting the force applied to the arch portion 3, the weight of the sole support 1 is reduced, thereby improving wearing comfort.

[0047] The heel portion 4 is a C-shaped structure that surrounds the lateral and posterior sides of the heel from the arch portion 3. An opening 43 is located on the medial side of the heel. The C-shaped structure extends backward and upward from the outer side of the arch portion 3. Most areas of the bottom surface corresponding to the human heel bone are not rigidly supported. When running, the heel first contacts the ground, placing significant pressure on the heel. Children are still developing, and their bones and muscles are not yet fully developed. Most areas of the heel portion 4 of the sole support 1 lack a corresponding area to the bottom surface of the calcaneus. As a result, when the heel lands, it contacts the elastic sole. The elastic sole absorbs significant energy through elastic deformation, reducing pressure on the foot. The sole support 1 reduces pressure on the heel while improving running speed and lateral stability during changes of direction, thereby protecting children's growth and development.

[0048] The heel portion 4 includes a second heel portion 42 located on the lateral side of the heel, a first heel portion 41 on the posterior side of the heel, and an opening 43 on the medial side of the heel. The second heel portion 42 is located on the lateral side of the heel and extends backward and upward. In other words, the second heel portion 42 and the first heel portion 41 are located on the lateral and posterior sides of the calcaneus, providing support for the calcaneus. Sprains in children are often caused by eversion of the foot. The first heel portion 41 and the second heel portion 42 better prevent eversion of the foot and improve torsional resistance.

[0049] Opening 43 is located on the inner side of heel portion 4. When a person changes direction while running, the foot exerts force in an outward direction, causing the foot to tend to move outward relative to the sole. The first heel portion 41 and the second heel portion 42 limit the distance the foot can move outward, thereby preventing sprains and providing support for the foot, improving the efficiency of direction changes. Opening 43 is located on the inner side of heel portion 4, increasing the distance the first heel portion 41 and the second heel portion 42 can move, broadening the range of motion of the heel without excessively restricting heel movement. This improves torsional resistance and stability while maintaining the inner side's flexibility, preventing excessive restriction that could affect foot development.

[0050] The heel portion includes a first protrusion 45, which is located at the sole portion corresponding to the calcaneus. When the C-shaped structure surrounds the outer side of the calcaneus, the first protrusion 45 provides support for the bottom surface of the calcaneus and disperses the pressure of the heel to the arch portion 3 and forefoot portion 2 of the sole support 1, thereby preventing the elastic sole from absorbing too much energy and affecting forward propulsion.

[0051] A shoe adopts the above-mentioned sole support 1. Because the sole support 1 reduces the bending stiffness, the bending stiffness of the shoe does not exceed 3.71Nm, which affects the development of children. At the same time, the bending stiffness will not be too low to affect the running speed. The outsole of the sole abuts the side of the rib 25. When changing direction, the pressure from the human foot to the sole support 1 from the inside to the outside and from the top to the bottom is dispersed to various parts of the outsole abutting the rib 25; when the ground exerts a reaction force on the outsole, it is dispersed to various parts of the sole support 1 through the rib 25 abutting the outsole, thereby reducing the pressure on various parts. The outsole abuts the side of the rib 25, and the outsole does not cover the bottom surface of the rib 25. The outsole covers the parts of the forefoot portion 2 and the arch portion 3 that extend upward and inward from the interconnected ribs 25, and does not cover the parts of the forefoot portion 2 and the arch portion 3 that extend rearward and outward from the interconnected ribs 25. The C-shaped structure is connected to the outside of the sole, and the parts of the sole support 20, ribs 25, part of the arch portion 3 and part of the heel portion 4 can be directly seen from the appearance, satisfying consumers' pursuit of personalization.

[0052] The above description of the specification and embodiments is used to explain the scope of protection of the present application, but does not constitute a limitation on the scope of protection of the present application.

Claims

1. A sole support member, characterized in that: The invention comprises a forefoot portion (2) corresponding to the forefoot, an arch portion (3) corresponding to the arch of the foot, and a heel portion (4) corresponding to the heel; the forefoot portion (2) comprises three support portions (20), each of the support portions (20) is connected to the arch portion (3) and extends forward to the forefoot portion (2), and each of the support portions (20) comprises a rib (25) protruding from its bottom surface and extending in the front-to-back direction; the heel portion (4) is a C-shaped structure, which surrounds the lateral side and the rear side of the heel from the arch portion (3) and has an opening (43) on the medial side of the heel.

2. A sole support member according to claim 1, characterized in that: The C-shaped structure of the heel portion (4) extends from the outer side of the arch portion (3) in a rearward and upward direction.

3. A sole support member as claimed in claim 2, characterized in that: The lengths of the three support portions (20) extending forward from the arch portion (3) gradually decrease from the inner side to the outer side.

4. A sole support member as claimed in claim 3, characterized in that: Each of the support portions (20) comprises two ribs (25); the front sides of the two ribs (25) of each support portion (20) are connected, and the rear sides of adjacent ribs (25) of adjacent support portions (20) are connected to each other.

5. A sole support member as claimed in claim 4, characterized in that: The innermost rib (25) extends from the forefoot portion (2) to the arch portion (3).

6. A sole support member as claimed in claim 5, characterized in that: The heel portion (4) includes a first protruding portion (45) which is connected to the arch portion (3) and extends rearward to the heel portion (4).

7. A sole support member according to claim 6, characterized in that: The arch portion (3) comprises a first through hole (31) and a second through hole (32), wherein the first through hole (31) and the second through hole (32) are located in the middle of the arch portion (3).

8. A shoe, characterized in that: The shoe shoe comprises a sole and a sole support member according to any one of claims 1 to 7, wherein the sole support member is located at the position of the sole.

9. A shoe as claimed in claim 8, characterized in that: The sole comprises an outsole, the outsole abuts against the side of the rib (25), and the outsole covers part of the forefoot portion (2) and the arch portion (3); the C-shaped structure is connected to the outer side of the sole.

10. A shoe as claimed in claim 8, characterized in that: The bending stiffness of the shoe is equal to or less than 3.71 Nm.

Images