A sole for a shoe and a shoe comprising a reinforcing member

Abstract

The application discloses a kind of soles comprising reinforcing member and shoes, which comprises sole body, and the sole body has forefoot, arch and heel corresponding to foot bottom, and further comprises: four reinforcing members distributed in the sole body along the left-right direction and at least extended from arch to forefoot; in plan view, the part of each reinforcing member in the forefoot of sole body is bent towards the inner side edge of sole body, the bending position of reinforcing member on the inner side is closer to the heel of sole body in front-back direction compared with the bending position of reinforcing member adjacent to it and on the outer side, and the included angle between the line of maximum curvature position of each reinforcing member and the left-right direction ranges from 40° to 50°; the sole can improve the comfort of user when wearing, and can also give better boost effect to user during movement.

Description

Technical Field

[0001] This invention relates to the field of shoe sole structure technology, and more specifically to a shoe sole and shoe including reinforcing components. Background Technology

[0002] In professional sports fields such as basketball shoes and running shoes, in order to improve or enhance athletic performance, reinforcing components with high structural rigidity and excellent deformation recovery capabilities, such as carbon fiber plates, are incorporated into the soles. However, while these reinforcing components provide assistance to athletes or users, their high structural strength leads to a decrease in user comfort. Furthermore, due to the excessive structural strength of these carbon fiber plates, the deformation of the sole during bending cannot conform well to the flexion of the user's foot, resulting in discomfort at the metatarsal area during high-intensity exercise. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a sole and shoe including reinforcing members, which can improve the comfort of the user when wearing the shoe and provide better assistance to the user during exercise.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A shoe sole including reinforcing members includes a sole body having a forefoot portion, an arch portion, and a heel portion corresponding to the sole of the foot, and further includes: four reinforcing members distributed in the left-right direction within the sole body and extending forward from at least the arch portion to the forefoot portion; in a top view, the portion of each reinforcing member within the forefoot portion of the sole body is bent toward the inner edge of the sole body, the bending position of the inner reinforcing member is closer to the heel portion of the sole body in the front-back direction than the bending position of the adjacent and outer reinforcing member, and the angle between the line connecting the maximum curvature positions of each reinforcing member and the left-right direction ranges from 40° to 50°.

[0006] Furthermore, in a top-down projection, the portion of each of the reinforcing members located after its bending position in the front-back direction extends parallel to the front-back direction.

[0007] Furthermore, each of the reinforcing members extends from the heel portion to the forefoot portion.

[0008] Furthermore, each of the reinforcing members corresponds, from the inside out, to the space between the first and second metatarsal bones, between the second and third metatarsal bones, between the third and fourth metatarsal bones, and between the fourth and fifth metatarsal bones.

[0009] Furthermore, the line connecting the positions of the maximum curvature of each of the reinforcing members forms an angle of 45° with the left-right direction.

[0010] Furthermore, the cross-section of each of the reinforcing members is flat, and the width of each of the reinforcing members gradually increases from front to back before its maximum curvature position, and remains consistent after its maximum curvature position.

[0011] Furthermore, the thickness of each of the reinforcing members gradually increases from front to back.

[0012] Furthermore, in a side view projection, each of the reinforcing members has a bent shape corresponding to the sole body from the forefoot to the arch, and the bending degree of the reinforcing member located on the inner side is greater than that of the reinforcing member adjacent to it and located on the outer side.

[0013] In addition, the present invention also provides a shoe comprising a sole as described in any of the preceding claims and an upper composited thereon.

[0014] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The sole has four reinforcing members distributed along the left and right directions, and each reinforcing member extends forward from the arch to the forefoot. This allows these reinforcing members to provide sufficient rigidity and cushioning for the foot in the metatarsal area when the sole bends, improving the stability of the sole support. Compared with conventional reinforcing members with an integral structure, the form of multiple reinforcing members allows each reinforcing member to provide independent support for the foot. The force and support requirements of different metatarsal points on different positions of the forefoot of the sole are obviously different. Reinforcing members with an integral structure will affect each other, while independent reinforcing members can adapt to changes in the shape of the foot more quickly and responsively during exercise.

[0016] The number of reinforcing members is set to four. In addition to the advantages mentioned above compared with reinforcing members with an integral structure, compared with the case of setting two or three reinforcing members, four reinforcing members can achieve a better balance between support and responsiveness to changes in foot shape. At the same time, compared with the case of setting five or more reinforcing members, each of the four reinforcing members can have a larger size, thus having better structural strength. It can also avoid the situation where reinforcing members affect each other due to being too closely packed together.

[0017] Each reinforcing component also has a shape that bends towards the inner edge of the sole in a top-view projection. The closer the reinforcing component is to the inner side, the greater the degree of bending, and the closer the bending position is to the heel. Overall, it presents a bending shape that slopes upward from the inside out. This shape allows sufficient contact between the first metatarsal bone near the inner side of the sole and the reinforcing component near the inner side of the sole. It also allows the reinforcing component to avoid the part of the metatarsophalangeal joint where the degree of bending is the greatest. This prevents the shape change at the metatarsophalangeal joint from being completely restricted, thereby reducing the impact of these reinforcing components on the metatarsophalangeal joint and avoiding the occurrence of stress fractures. It is closer to the actual shape change of the sole. At the same time, this bending structure can also ensure that the sole has sufficient structural rigidity as a whole and can quickly recover its deformation after bending, providing a balance and guarantee in terms of comfort and functionality.

[0018] 2. In the top view, the bent part of the reinforcing member extends parallel to the front-to-back direction, which facilitates the effective transmission of the force on the forefoot of the reinforcing member to the rear.

[0019] 3. The reinforcing component extends from the heel to the forefoot. The longer length allows the reinforcing component to be more tightly integrated with the sole, and the force on the forefoot can be evenly distributed across the entire sole.

[0020] 4. The positions of each reinforcing component correspond to the positions of each metatarsal bone on the sole of the foot, enabling each reinforcing component to respond quickly to changes in the shape of the sole. At the same time, the positions of each reinforcing component do not correspond one-to-one with each metatarsal bone, but are located between adjacent metatarsals. Here, "between" means that these reinforcing components can span adjacent metatarsals. Furthermore, because these reinforcing components have a bent structure, they will be deformed simultaneously by the force of adjacent metatarsals. This allows the force exerted by the sole of the foot on these reinforcing components to be dispersed, avoiding excessive impact on the first metatarsal bone while still meeting the overall structural strength requirements of the sole.

[0021] 5. The angle between the line connecting the maximum curvature positions of each reinforcing component and the left-right direction is 45°. This angle allows the sole to have a better balance in terms of structural strength, resistance to deformation, and wearing comfort.

[0022] 6. The cross-section of the reinforcing component is flat, which is convenient for manufacturing and installation into the shoe sole. It can also better withstand the force applied from above the shoe sole. At the same time, the width of the reinforcing component gradually increases from front to back and remains uniform, which can avoid the front part taking up too much space and make the force transmission of the rear part more effective.

[0023] 7. The thickness of the reinforcing components gradually increases from front to back. The front part is thinner while ensuring the overall structural strength, which can reduce the deformation resistance of the reinforcing components and improve wearing comfort. The increased thickness at the rear part can ensure the efficiency of force transmission.

[0024] 8. In the side view projection, the reinforcing members are also bent, and the bending degree of the reinforcing members on the inner side is greater than that of the reinforcing members on the outer side. This structure is more in line with the physiological structure curve of the forefoot of the human foot, providing better comfort when not engaging in high-intensity exercise, while ensuring sufficient support for the foot when the sole of the shoe is on the floor during exercise.

[0025] 9. The reinforcing components are made of carbon fiber, which has excellent resistance to deformation and high structural strength, effectively ensuring the boosting effect of the reinforcing components on the user's movement.

[0026] 9. In the shoe, the aforementioned sole is also combined with the upper to form a complete shoe structure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A partial structural schematic diagram of an embodiment of a shoe sole provided by the present invention;

[0029] Figure 2 for Figure 1 A side view of the reinforcing member in the diagram.

[0030] Explanation of key figure labels:

[0031] The sole body 10; forefoot 11; arch 12; heel 13; first reinforcing member 21; second reinforcing member 22; third reinforcing member 23; fourth reinforcing member 24. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and accompanying drawings of this invention is for distinguishing different objects and not for describing a specific order.

[0034] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this invention, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0035] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this invention should be interpreted broadly to refer to 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.

[0036] In the claims, description and accompanying drawings of this invention, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0037] See Figure 1 , Figure 1 This diagram illustrates a partial structural schematic of a shoe sole including reinforcing members, according to an embodiment of the present invention. The sole includes a sole body 10 and four reinforcing members distributed along a left-right direction within the sole body 10. The sole body 10 corresponds to the sole of the foot and has a forefoot portion 11, an arch portion 12, and a heel portion 13. The four reinforcing members extend forward from the arch portion 12 to the forefoot portion 11. The reinforcing members can be made of carbon fiber or other materials with certain structural strength and relatively light weight; using carbon fiber is merely a preferred choice in the art.

[0038] Here, the forefoot portion 11 refers to the toe portion and metatarsophalangeal joint area on the front side of the sole, the arch portion 12 refers to the portion between the metatarsal bones and the heel, and the heel portion 13 refers to the portion corresponding to the heel on the sole. The division of these portions does not have obvious dividing lines on the actual product, but it is easy for those skilled in the art to know the specific locations of these portions.

[0039] In a preferred embodiment, the reinforcing member extends forward from the heel 13 to the forefoot 11. This is because a longer reinforcing member can have a better fit with the sole body 10. When the forefoot 11 is bent under pressure, the reinforcing member can transfer the force to the heel 13 and even the entire sole body 10, effectively improving the structural strength of the reinforcing member itself. Of course, in other embodiments, the reinforcing member can also extend forward from the arch 12 to the forefoot 11. Although this arrangement results in a certain decrease in structural strength compared to the aforementioned embodiments, as long as the material of the reinforcing member itself meets the requirements, it can still achieve the corresponding effect. It is also easy to install and can reduce costs.

[0040] In a top-view projection, the portion of each reinforcing member within the forefoot portion 11 of the sole body 10 bends towards the inner edge of the sole body 10. The bending position of the inner reinforcing member is closer to the heel portion 13 of the sole body 10 in the front-back direction compared to the bending position of its adjacent outer reinforcing member. Furthermore, the angle between the line connecting the maximum curvature positions of each reinforcing member and the left-right direction ranges from 40° to 50°. Additionally, also in a top-view projection, the portion of each reinforcing member after its bending position extends parallel to the front-back direction.

[0041] In a preferred embodiment, the angle between the line connecting the positions of the maximum curvature of each reinforcing member and the left-right direction is set to 45°.

[0042] The aforementioned front-back and left-right directions are based on the orientation of the sole of the foot. The front-back direction is from the toe to the heel, and the left-right direction is from the inner to the outer side of the sole. Here, the inner side of the sole refers to the side closer to the big toe, and the outer side refers to the side closer to the little toe. The top-down projection refers to the projection formed vertically from top to bottom when the shoe sole is placed flat on the ground.

[0043] Reference Figure 1From left to right, the four reinforcing members are: first reinforcing member 21, second reinforcing member 22, third reinforcing member 23, and fourth reinforcing member 24. Each reinforcing member has a portion located within the forefoot portion 11 of the sole body 10. This portion has a bending structure. The bending position of the first reinforcing member 21 is lower than that of the second reinforcing member 22, the bending position of the second reinforcing member 22 is lower than that of the third reinforcing member 23, and the bending position of the third reinforcing member 23 is lower than that of the fourth reinforcing member 24. Here, "lower" means closer to the heel portion 13 of the sole body 10. Due to the different bending positions of these reinforcing members, their maximum curvature positions differ. The maximum curvature position here refers to the position where the bending degree of each reinforcing member is greatest. It should be noted that in actual products, due to processing errors, there may be uneven bending, making it impossible to determine the exact maximum curvature position of these reinforcing members. However, the maximum curvature position here should be understood as the position where the overall bending degree of these reinforcing members is greatest from a macroscopic perspective.

[0044] The different bending positions of the various reinforcing members result in different overall shapes of the reinforcing members and different correspondences with the foot position. Specifically, the first reinforcing member 21 corresponds to the space between the first and second metatarsal bones of the foot, the second reinforcing member 22 corresponds to the space between the second and third metatarsal bones of the foot, the third reinforcing member 23 corresponds to the space between the third and fourth metatarsal bones of the foot, and the fourth reinforcing member 24 corresponds to the space between the fourth and fifth metatarsal bones of the foot.

[0045] The descriptions including "between" such as "corresponding to the first and second metatarsal bones of the foot" do not mean that the support unit is only located in the gap between the two corresponding metatarsal bones. Rather, it means that the support unit can be located only in the gap between the two metatarsal bones or can extend to a position that overlaps with both metatarsal bones. Since each reinforcing member has a bent structure, and the metatarsal bones on the sole of the foot extend roughly in the front-back direction, each reinforcing member will cross the adjacent metatarsal bone area in the left-right direction. This structure allows the reinforcing members to work together as a whole to act on the sole of the foot, without causing the structural strength to be too high due to the formation of a whole structure.

[0046] In addition, the cross-section of each of the above-mentioned reinforcing members is flat, and the width of each reinforcing member gradually increases from front to back before its maximum curvature position and remains consistent after its maximum curvature position; at the same time, the thickness of each reinforcing member gradually increases from front to back.

[0047] Specifically, the cross-section of the reinforcing member refers to the section cut vertically from left to right. The reinforcing member has a flat structure, which facilitates its cutting and shaping from carbon fiber sheets. At the same time, it can fit well with the sole body 10 after being installed inside the sole body 10. This is because the sole body 10 is usually formed by the combination of the midsole and the outsole. The reinforcing member is glued or fixed to the bottom surface of the midsole in other ways. After the composite outsole is formed, the outsole and the midsole will cooperate to clamp and fix the reinforcing member. Therefore, the flat structure allows the reinforcing member to fit well with both the outsole and the midsole.

[0048] The width and thickness of the reinforcing member are set such that the width of the reinforcing member gradually increases before the bending position and remains consistent after the bending position. This can prevent the reinforcing member from occupying too much space in the left and right directions of the forefoot part 11 of the sole body 10, and can also ensure that the reinforcing member can effectively transmit the force to the arch part 12 or the heel part 13. The gradual increase in the thickness of the reinforcing member can improve the force transmission efficiency of the reinforcing member while ensuring wearing comfort.

[0049] Furthermore, in a side view projection, each reinforcing member has a bent shape corresponding to the sole body 10 from the forefoot portion 11 to the arch portion 12, and the bending degree of the reinforcing member located on the inner side is greater than that of the adjacent reinforcing member located on the outer side. Specifically, refer to... Figure 2 The bending degree here refers to the degree of bending of each reinforcing member from front to back in a side view projection. The first reinforcing member 21 has the greatest bending degree, and the bending degree of subsequent reinforcing members decreases sequentially. This morphological change is more in line with the physiological shape of the foot. For reinforcing members with an integral structure, if the bending degree is to be changed according to the position of each metatarsal bone, the reinforcing member needs to undergo complex processing, and the manufacturing efficiency and yield rate cannot be improved to a practical level. However, by setting multiple unconnected reinforcing members, each reinforcing member can adjust its own bending degree according to its position, and the bending degree adjustment of a single strip reinforcing member is also simpler. This structure is more in line with the physiological structural curve of the forefoot of the human foot, providing better comfort when not engaged in high-intensity exercise, while ensuring sufficient support for the foot when the sole is on the ground during exercise.

[0050] In addition, the present invention also provides a shoe comprising the aforementioned sole and an upper bonded to the sole.

[0051] The composite processes described above are all conventional techniques in this field, and will not be elaborated upon here.

[0052] This invention provides a sole and shoe including reinforcing members. The sole has four reinforcing members distributed in the left-right direction, and each reinforcing member extends forward from the arch 12 to the forefoot 11. This allows the reinforcing members to provide sufficient stiffness and cushioning to the foot in the metatarsal region when the sole bends, improving the stability of the sole support. Compared to conventional reinforcing members with a single structure, the multiple reinforcing members allow each member to independently provide support to the foot. The force and support requirements at different positions of the forefoot 11 at different metatarsal points are obviously different. With a single reinforcing member, the different positions affect each other, while independent reinforcing members can adapt to changes in foot shape more quickly and responsively during movement. The number of reinforcing members is set to four. In addition to the advantages mentioned above compared to a single reinforcing member, compared to two or three reinforcing members, four reinforcing members achieve a better balance between support and responsiveness to changes in foot shape. Furthermore, compared to five or more reinforcing members... In cases with additional reinforcing components, each of the four reinforcing components can have a larger size, resulting in better structural strength. This also avoids the mutual interference caused by overly dense stacking of reinforcing components. Each reinforcing component also has a shape that bends towards the inner edge of the sole in a top-view projection, with the bending degree being greater and the bending position closer to the heel of the reinforcing component closer to the sole. Overall, it presents a bending shape that slopes upward from the inside out. This shape allows sufficient contact between the first metatarsal bone near the inner edge of the sole and the reinforcing component near the inner edge of the sole, and it allows the reinforcing component to avoid the part of the metatarsophalangeal joint where the bending degree is the greatest. This prevents the shape changes at the metatarsophalangeal joint from being completely restricted, thereby reducing the impact of these reinforcing components on the metatarsophalangeal joint and avoiding the occurrence of stress fractures. It is closer to the actual shape changes of the sole. At the same time, this bending structure also ensures that the sole has sufficient structural rigidity as a whole, and can quickly recover its deformation after bending, providing a balance and guarantee in terms of comfort and functionality.

[0053] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this invention, but does not constitute a limitation on the scope of protection of this invention. Modifications, equivalent substitutions, or other improvements to the embodiments of this invention or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this invention or the foregoing embodiments, in conjunction with common knowledge, general technical knowledge, and / or existing technology, should all be included within the scope of protection of this invention.

Claims

1. A shoe sole including reinforcing members, comprising a sole body (10) having a forefoot portion (11), an arch portion (12), and a heel portion (13) corresponding to the sole of the foot, characterized in that it further comprises... include: Four reinforcing members distributed in the left-right direction within the sole body (10) and extending forward from the arch portion (12) to the forefoot portion (11); In a top-view projection, the portion of each of the reinforcing members inside the forefoot portion (11) of the sole body (10) bends toward the inner edge of the sole body (10). The bending position of the inner reinforcing member is closer to the heel portion (13) of the sole body (10) in the front-back direction than the bending position of the adjacent and outer reinforcing member. The angle between the line connecting the maximum curvature positions of each of the reinforcing members and the left-right direction is between 40° and 50°, so that the reinforcing member avoids the part with the greatest degree of bending at the metatarsophalangeal joint. In a top-down projection, the portion of each reinforcing member located after its bending position in the front-back direction extends parallel to the front-back direction.

2. A shoe sole including a reinforcing member as described in claim 1, characterized in that, Each of the reinforcing members extends from the heel portion (13) to the forefoot portion (11).

3. A shoe sole including a reinforcing member as described in claim 1, characterized in that, Each of the reinforcing members corresponds, from the inside out, between the first and second metatarsal bones, between the second and third metatarsal bones, between the third and fourth metatarsal bones, and between the fourth and fifth metatarsal bones on the sole of the foot.

4. A shoe sole including a reinforcing member as described in claim 1, characterized in that, The line connecting the positions of the maximum curvature of each of the reinforcing members forms an angle of 45° with the left-right direction.

5. A shoe sole including a reinforcing member as described in claim 1, characterized in that, Each of the reinforcing members has a flat cross-section, and the width of each reinforcing member gradually increases from front to back before its maximum curvature position, and remains consistent after its maximum curvature position.

6. A shoe sole including a reinforcing member as described in claim 5, characterized in that, The thickness of each of the reinforcing members gradually increases from front to back.

7. A shoe sole including a reinforcing member as described in claim 1, characterized in that, In a side view projection, each of the reinforcing members has a bent shape from the forefoot (11) to the arch (12) of the sole body (10), and the bending degree of the reinforcing member located on the inner side is greater than that of the reinforcing member located on the outer side adjacent to it.

8. A shoe sole including a reinforcing member as described in claim 1, characterized in that, The reinforcing component is made of carbon fiber.

9. A type of shoe, characterized in that, Includes a sole as described in any one of claims 1-8 and an upper incorporated thereto.

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