Sole structure with function changing in motion stress direction and footwear product

Abstract

The invention discloses a sole structure and a footwear product with functions changing in the exercise stress direction, the sole structure comprises a supporting assembly and a shell, the supporting assembly comprises a supporting layer arranged from top to bottom, a cushioning area is formed by the supporting layer on the upper side part of the supporting assembly, and a supporting area is formed by the supporting layer on the lower side part of the supporting assembly; wherein the size of the supporting layer in the supporting area in the thickness direction is larger than the size of the supporting layer in the cushioning area in the thickness direction. The sole structure provides functional changes in the thickness direction while maintaining light weight.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe soles, and particularly to a shoe sole structure and a footwear product with functional changes in the direction of sports force application. Background Art

[0002] Footwear products include a shoe upper and a shoe sole structure. The shoe upper can be formed of a suitable material to accommodate, fix, and support the foot on the shoe sole structure. The shoe upper can cooperate with shoelaces, Velcro, or other fasteners to adjust the fit of the shoe upper around the foot. The bottom portion of the bottom surface of the shoe upper adjacent to the foot is attached to the shoe sole structure.

[0003] The shoe sole structure includes different components arranged in layers and joined between the ground and the shoe upper. The outsole at the bottom layer of the shoe sole structure provides abrasion resistance and adhesion to the ground, and can be formed of rubber or other suitable materials. The part above the outsole is the midsole of the shoe sole structure, which provides cushioning and rebound for the foot and is at least partially formed of a polymer foam material that deforms after the foot applies pressure to it, so as to buffer the foot by weakening the reaction force of the ground on the foot. A footbed can be defined on the upper surface of the midsole, and the contour of the footbed can be set to be consistent with the contour of the bottom surface of the foot. The shoe sole structure can also include an insole or an insole pad for improving comfort, which is fixed or detachably attached to the upper surface of the midsole and is located in the shoe cavity defined by the midsole and the shoe upper.

[0004] In the current shoe sole structure, it is required that the upper part of the shoe sole in contact with the foot has better shock absorption performance, while the lower part of the shoe sole in contact with the ground has better support performance, that is, functional changes are provided in the thickness direction of the shoe sole structure. To achieve this goal, different materials can be used on the midsole of the shoe sole structure. For example, a lighter and softer material is used on the upper part of the midsole, and a heavier and harder material is used on the lower part of the midsole. However, this shoe sole structure has the problem of large overall weight, and it is difficult to closely integrate the joints between different materials, resulting in poor overall quality. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background art, and provide a shoe sole structure and a footwear product with functional changes in the direction of sports force application, which provide functional changes in the thickness direction while maintaining light weight.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] Technical Solution 1: A sole structure with functional changes in the direction of movement force, which includes: a support component, which is arranged with a plurality of support layers in the thickness direction, and at least one of the support layers forms a shock-absorbing area on its upper side part, and at least one of the support layers forms a support area on its lower side part; and a housing, which encloses the outside of the support component; in the support component, for each of the support layers, a layout direction and a channel direction perpendicular to each other are defined; each support layer is provided with a plurality of support channels arranged in sequence along the layout direction, and the support channels located in the same support layer all extend along the channel direction; adjacent support layers communicate with each other, and their corresponding layout directions are perpendicular to each other, and the channel directions are also perpendicular to each other; the support channel is formed by the cooperation of two opposite side walls arranged along the layout direction corresponding to the support layer; the side walls are periodically arranged with end-to-end first bending sections and second bending sections along the channel direction corresponding to the support layer where they are located, and the bending directions of the first bending section and the second bending section are opposite; between two adjacent side walls in the same support layer, the positions of their respective first bending sections are staggered, and the positions of their respective second bending sections are also staggered; in the same support layer, adjacent side walls have a tendency to approach each other closer to the joint of the adjacent support layers, and at the joint of the adjacent support layers, in the same support layer, the starting point of the first bending section of the side wall is connected to the end point of the first bending section of the adjacent other side wall that is staggered from it, and the starting point of the second bending section of the side wall is connected to the end point of the second bending section of the adjacent other side wall that is staggered from it, so that the support channels in the adjacent support layers communicate with each other; in the support component, the widths of the support channels are the same, and the size of the support layer in the shock-absorbing area in the thickness direction is smaller than the size of the support layer in the support area in the thickness direction; the width of the support channel is the distance between the lower edges of the two side walls forming the support channel in the layout direction; the size of the support layer in the thickness direction is the distance between the lower edges of the two side walls forming any one of the support channels in the support layer in the thickness direction and the joints corresponding to the two side walls.

[0008] Technical Solution 2 based on Technical Solution 1: The filling rate of each support layer is equal, and the filling rate is the volume occupied by the side walls in the space enclosed by the housing in the support layer.

[0009] Technical Solution 3 based on Technical Solution 2: The sizes of the support layers in the support component in the thickness direction gradually increase from top to bottom.

[0010] Technical Solution 4 based on Technical Solution 2: The sizes of the support layers in the shock-absorbing area in the thickness direction are equal, and the sizes of the support layers in the support area in the thickness direction are equal.

[0011] Technical solution five based on technical solution four: Between the shock absorption area and the support area, at least one of the support layers forms a resilience area; the support layers in the shock absorption area, the resilience area, and the support area gradually increase in size in the thickness direction.

[0012] Technical solution six based on technical solution five: The support layers in the resilience area are equal in size in the thickness direction.

[0013] Technical solution seven based on technical solution six: The size of the support layer in the thickness direction in the resilience area is 1.1 times the size of the support layer in the thickness direction in the shock absorption area; the size of the support layer in the thickness direction in the support area is 1.2 times the size of the support layer in the thickness direction in the shock absorption area.

[0014] Technical solution eight based on technical solution one: The starting and ending points of the first bending section and the second bending section in the side wall are inclined along the extending direction of the corresponding support channel, and the inclined directions corresponding to the first bending section and the second bending section in the same side wall are the same, while the inclined directions corresponding to adjacent side walls are opposite.

[0015] Technical solution nine based on technical solution eight: The part of the side wall closer to the joint of the adjacent support layers has a greater degree of bending.

[0016] In addition, the present invention also provides technical solution ten: A footwear product, which includes a shoe upper and a sole structure with functional changes in the direction of movement force as described in any one of technical solutions one to nine, and the shoe upper is attached to the sole structure.

[0017] 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:

[0018] Technical solution one provides a sole structure with functional changes in the direction of movement force. The sole structure includes a support assembly and a housing. The housing can enclose the support assembly, so that a sealed air chamber is formed inside the support assembly. By using the structural characteristics of the support assembly and the air cushion structure formed by the sealed air chamber, resilience and shock absorption performance are provided.

[0019] Among them, a plurality of support layers are arranged in the thickness direction of the support component. The support layers form support channels, and air can be accommodated in the support channels. At the same time, the channel directions of the support channels of adjacent support layers are perpendicular to each other, and adjacent support layers are connected to each other. Thus, a closed air chamber can be formed through the enclosure of the outer shell. When the support component is subjected to a downward pressure, the support component is squeezed as a whole, so that the air in the support channel is compressed. When the pressure is removed, the air will return to its original volume. During this process, the compression and restoration of the air can play a certain shock-absorbing role. At the same time, adjacent support layers will support each other. And because the support channels of adjacent support layers are in an interlaced form, when the support component is squeezed, the force received will be quickly and evenly dispersed throughout the support component, so as to provide a better shock-absorbing effect through the entire support component. In the support layer, the support channels are formed by the cooperation of the side walls. The side walls are provided with a first bending section and a second bending section. Compared with the straight side walls, the curved side walls have a larger equivalent support area in the arrangement direction. When subjected to a downward pressure, the side walls themselves can form a certain support, and then can be feedback to the entire support component, improving the shock-absorbing effect of the sole protection and shock-absorbing structure. At the same time, in the same support layer, adjacent side walls tend to incline towards each other, and there are connecting parts between adjacent side walls. The structure of mutual inclination makes the force transmission faster and can make the support performance of the side walls better. The connection of adjacent side walls can make the connection part between adjacent support layers more stable and increase the equivalent contact area of the connection part, improving the support performance and thus improving the overall shock-absorbing effect. The first bending section and the second bending section are inclined, which can make adjacent side walls easier to be connected into one body, and the connection positions are staggered from each other, reducing the influence of too concentrated stress, thereby improving the overall shock-absorbing effect.

[0020] Moreover, the upper part of the support component forms a shock-absorbing area with the support layer, and the lower part forms a support area with the support layer. The support layers in both have different dimensions in the thickness direction, thus providing different performances. Specifically, based on the above support layer, if the structural dimensions of each support layer are equal, that is, the support component is uniform in the thickness direction, then the support component can only provide a single performance. For example, due to the above structure, the support component can have a good shock-absorbing effect, but the support effect when contacting the ground is poor. At this time, the support performance of this part can be improved by increasing the density or filling rate of the lower part of the support component, but this will lead to an increase in the overall density of the support component. Under the same shape and size, the weight of the support component will increase, which is not conducive to the lightweight of the sole structure. Therefore, in the support component of this technical solution, the widths of the support channels are kept consistent, and at the same time, the dimension of the support layer in the support area in the thickness direction is stretched. Since the support layer in the support area is stretched in the thickness direction while the width of its support channel remains the same as before, the deflection angle of the side wall for forming the support channel in the support layer of the support area will decrease. In the case of the same side wall thickness, there are more overlapping parts inside the side wall in the thickness direction, so a better support effect can be provided. Moreover, since only the support layer is stretched in the thickness direction, the density or filling rate of the support layer in the support area is still the same as that of the support layer in the shock-absorbing area, and the overall density of the support component does not change, thus improving the shock-absorbing performance and support performance of the sole structure while achieving lightweight.

[0021] In Technical Solution 2, the filling rate of each support layer is equal, ensuring that the overall density of the support component does not change compared with the conventional structure, thus ensuring the lightweight of the sole structure; and the equal filling rate of the support layers enables the connection and transition between adjacent support layers in the thickness direction to still maintain adaptation, and no misalignment will occur, so that the force and force transmission of the support component as a whole are balanced.

[0022] In Technical Solution 3, the dimensions of the support layers in the support component in the thickness direction are gradually increased from top to bottom. The gradual change in dimensions can make the support component gradually present a functional change from better shock-absorbing performance to better support performance as a whole. The change in dimensions between adjacent support layers is small, which can avoid the fault change in performance in the thickness direction, and the wearing feel is more comfortable.

[0023] In Technical Solution 4, the dimensions of the support layers in the shock-absorbing area in the thickness direction are equal, and the dimensions of the support layers in the support area in the thickness direction are also equal. With this setting, the structural consistency of the support layers inside the shock-absorbing area and the support area is better, and at the same time, better shock-absorbing performance and support performance can be maintained.

[0024] In Technical Solution Five, a rebound area is provided between the shock-absorbing area and the support area, and the dimensions of the support layers in the shock-absorbing area, the rebound area, and the support area gradually increase in the thickness direction. Such a design enables a smoother transition among the shock-absorbing, rebounding, and supporting performances of the sole structure. When the foot touches the ground, the shock-absorbing area acts first to absorb the impact force; then the rebound area can effectively convert the absorbed energy into a rebounding force to provide assistance for the next movement; finally, the support area provides stable support to ensure the stability of the foot during movement. This gradient structure design can avoid the abrupt transition between different performance areas, thereby providing a more comfortable and natural wearing experience, especially suitable for the dynamic requirements in various sports scenarios.

[0025] In Technical Solution Six, the dimensions of the support layers in the rebound area are equal in the thickness direction, ensuring the consistency and stability of the internal structure of the rebound area. After being deformed under pressure, the support layers with equal dimensions can return to their original state in a relatively uniform manner, thereby providing a stable and predictable rebounding force. This stability helps reduce the performance fluctuations of the sole during use, enabling the user to feel a consistent rebounding effect in each step of movement, enhancing the rhythm and comfort of the movement. At the same time, it also helps extend the service life of the sole structure because the uniform stress and deformation can reduce the risk of local excessive wear.

[0026] In Technical Solution Seven, the dimension of the support layer in the thickness direction in the rebound area is 1.1 times that of the support layer in the thickness direction in the shock-absorbing area, and the dimension of the support layer in the thickness direction in the support area is 1.2 times that of the support layer in the thickness direction in the shock-absorbing area. The above-mentioned proportional changes have good feedback in practical applications. The moderately increased thickness of the rebound area relative to the shock-absorbing area enables it to better play the rebound function while having a certain shock-absorbing ability, effectively feedbacking the energy to the foot and enhancing the efficiency and smoothness of the movement. The further increased thickness of the support area ensures a strong supporting force when the sole contacts the ground, capable of withstanding greater pressure without excessive deformation, providing a solid foundation for the foot and guaranteeing the safety of the movement. Especially in high-intensity sports or complex terrains, this design can better meet the comprehensive performance requirements of the sole structure.

[0027] In Technical Solution Eight, the first bending section and the second bending section are inclined, which can make the adjacent side walls easier to be joined together as a whole, and the joining positions are staggered from each other, reducing the influence of excessive stress concentration, thereby improving the overall shock-absorbing effect.

[0028] In Technical Solution Nine, making the bending degree of the part of the side wall closer to the joining position of the support layer greater can make the joining of the adjacent side walls smoother, avoid sudden structural changes, and enhance the rebound performance of the support component.

[0029] Embodiment Ten provides a footwear product that applies the above-mentioned sole structure and has functional variations in the thickness direction, capable of providing better shock absorption and support performance while maintaining the lightweight of the sole structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a schematic cross-sectional structure diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention;

[0032] Figure 2 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 1 ;

[0033] Figure 3 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 2 ;

[0034] Figure 4 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 3 ;

[0035] Figure 5 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 4 ;

[0036] Figure 6 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 5 ;

[0037] Figure 7 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 6 ;

[0038] Figure 8 It is a schematic diagram of the sole structure with functional variations in the direction of movement force involved in the embodiments of the present invention Figure 7 .

[0039] Main reference numeral description:

[0040] Support component 1; Support layer 2; Shock-absorbing area 3; Support area 4; Outer shell 5; Support channel 6; Side wall 7; First bending section 8; Second bending section 9; Junction 10; Rebound area 11. Detailed implementation

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0042] In the claims, the description, and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second", or "third", etc., are for distinguishing different objects and not for describing a specific order.

[0043] In the claims, the description, and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the accompanying drawings, and is only for facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.

[0044] In the claims, the description, and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated, and being fixed by other devices or elements.

[0045] In the claims, the description, and the above-mentioned accompanying drawings of the present invention, when using terms such as "including", "having", and their variants, are intended to mean "including but not limited to".

[0046] The embodiments of the present invention relate to a footwear product, which includes an upper and a sole structure. The sole structure is a sole structure with functional changes in the direction of sports force, and the upper is attached to the sole structure. The structure of the upper and the way the upper is attached to the sole structure can be set according to the conventional way and will not be elaborated here.

[0047] The sole structure of the footwear product that changes in function in the direction of the movement force applied thereto will be described in detail below.

[0048] The sole structure includes: a support assembly 1, which is provided with a plurality of support layers 2 arranged in the thickness direction, and a shock-absorbing area 3 is formed by at least one of the support layers 2 on its upper side part, and a support area 4 is formed by at least one of the support layers 2 on its lower side part; and a housing 5, which encloses the outside of the support assembly 1.

[0049] Among them, in the support assembly 1, for each support layer 2, a layout direction and a channel direction perpendicular to each other are defined; each support layer 2 is provided with a plurality of support channels 6 arranged in sequence along the layout direction, and the support channels 6 located in the same support layer 2 all extend along the channel direction; adjacent support layers 2 communicate with each other, and their corresponding layout directions are perpendicular to each other, and the channel directions are also perpendicular to each other; the support channel 6 is formed by two opposite side walls 7 arranged along the layout direction corresponding to the support layer 2; the side walls 7 are periodically arranged with end-to-end first bending segments 8 and second bending segments 9 along the channel direction corresponding to the support layer 2 where they are located, and the bending directions of the first bending segments 8 and the second bending segments 9 are opposite; between two adjacent side walls 7 in the same support layer 2, the positions of their respective first bending segments 8 are staggered, and the positions of their respective second bending segments 9 are also staggered; in the same support layer 2, adjacent side walls 7 tend to be closer to each other the closer they are to the joint 10 of the adjacent support layer 2, and at the joint 10 of the adjacent support layer 2, in the same support layer 2, the starting point of the first bending segment 8 of the side wall 7 is connected to the end point of the first bending segment 8 of the adjacent other side wall 7 that is staggered therewith, and the starting point of the second bending segment 9 of the side wall 7 is connected to the end point of the second bending segment 9 of the adjacent other side wall 7 that is staggered therewith, so that the support channels 6 in the adjacent support layers 2 communicate with each other.

[0050] Moreover, in the support assembly 1, the widths of all the support channels 6 are the same, and the dimension of the support layer 2 in the shock-absorbing area 3 in the thickness direction is smaller than the dimension of the support layer 2 in the support area 4 in the thickness direction; the width of the support channel 6 is the distance between the lower edges of the two side walls 7 forming the support channel 6 in the layout direction; the dimension of the support layer 2 in the thickness direction is the distance between the lower edges of the two side walls 7 forming any one of the support channels 6 in the support layer 2 in the thickness direction and the joint 10 corresponding to the two side walls 7.

[0051] Among them, the starting points and ending points of the first bending section 8 and the second bending section 9 in the side wall 7 are inclined along the extending direction of the corresponding support channel 6, and the inclined directions corresponding to the first bending section 8 and the second bending section 9 in the same side wall 7 are the same, while the inclined directions corresponding to the adjacent side walls 7 are opposite. The closer the part of the side wall 7 is to the joint 10 of the adjacent support layers 2, the greater the degree of bending.

[0052] Specifically, first refer to Figure 1 , which shows the structure of the sole in the thickness direction involved in this embodiment: between the shock absorption area 3 and the support area 4, at least one support layer 2 forms a rebound area 11. That is to say, the sole structure involved in this embodiment has a three-layer structure in the thickness direction, which are the shock absorption area 3, the rebound area 11 and the support area 4 from top to bottom. In this embodiment, these three-layer structures are tightly connected in the thickness direction and jointly form the support assembly 1. In other embodiments, only the upper shock absorption area 3 and the lower support area 4 may be provided, without providing the middle rebound area 11, which will not affect the support assembly 1 from realizing its basic functions.

[0053] In this embodiment, at least part of the support assembly 1 in the sole structure is prepared by 3D printing. Its outer shell 5 can be formed together with the support assembly 1 by 3D printing, or can be attached outside the support assembly 1 after the support assembly 1 is formed and the outside of the support assembly 1 is closed. Among them, when the support assembly 1 is prepared by 3D printing, the material used can be thermoplastic polyurethane elastomer. The thermoplastic polyurethane elastomer material can choose commercially available products, such as Dechuang AU brand polyurethane material, Covestro UT-AU brand polyurethane material and Lubrizol BF-brand polyurethane material, etc. Or, the material used can also be nylon, and the material grade can be selected according to actual needs. It should be understood that in this embodiment, when the sole protection and shock absorption structure is made of different materials, its shock absorption performance will inevitably be different, but this difference will not affect the sole protection and shock absorption structure from realizing its functions. When the outer shell 5 is also prepared by 3D printing, the materials used for the support assembly 1 and the outer shell 5 can be the same or different, and the materials used in different regions inside the support assembly 1 (such as the shock absorption area 3 and the support area 4) can be the same or different. However, it should be noted that the outer shell 5 should be made of airtight material. When the outer shell 5 covers and closes the outer periphery of the support assembly 1, it can cooperate with the support assembly 1 to form a closed air chamber.

[0054] Since the sole structure provided in this embodiment is obtained by layer-by-layer stacking and printing in a 3D printing manner, and it is gradually stacked layer by layer from bottom to top to achieve the structure construction, therefore, this embodiment also adopts a corresponding layer-by-layer laying method to illustrate the structure of the support component 1. Among them, Figure 2 is a schematic structural diagram of one of the support layers 2, 3 Figures 3 to 6 is a diagram showing different stages of the support layer 2 located at the bottommost layer formed by laying and stacking in sequence from the bottom upwards, Figure 7 and Figure 8 are schematic structural diagrams of the support layer 2 of the penultimate layer and the third layer from the bottom.

[0055] Referring to Figure 2 , the main body of the support layer 2 is the side wall 7 for forming the support channel 6, and the space between the two side walls 7 is the support channel 6.

[0056] Referring to Figure 3 , taking the support layer 2 shown in the figure as the support layer 2 of the first layer, although the side wall 7 has a curved structure, the support channel 6 generally still extends in a fixed direction, and its extension direction is the channel direction of this support layer 2; at the same time, the support layer 2 of the first layer includes a plurality of support channels 6, and these support channels 6 are arranged in a fixed direction, which is the arrangement direction corresponding to this support layer 2. Taking the paper surface direction where Figure 3 is located as an example, the channel direction of the support layer 2 of the first layer is the left-right direction, and the arrangement direction is the up-down direction. In addition, referring to Figure 2 , it shows the structure of the support layer 2 of the second layer adjacent to the upper part of the support layer 2 of the first layer. In the support layer 2 of the second layer, the channel direction becomes the up-down direction, and the arrangement direction becomes the left-right direction. It can be seen from this that for adjacent support layers 2, their channel directions and arrangement directions change periodically. At the same time, adjacent support layers 2 are interconnected with each other. When the outer wall encloses the entire support component 1, the sole structure as a whole forms a closed air chamber.

[0057] Referring to Figure 3 , taking the paper surface direction where Figure 3 is located as an example, in the support layer 2 of the first layer, the side wall 7 is periodically arranged in the left-right direction, that is, the channel direction of this support layer 2, with the first bending section 8 and the second bending section 9 connected end to end. Taking one of the side walls 7 as an example, starting from the left end, it is arranged in the form of the first bending section 8, the second bending section 9, the first bending section 8, the second bending section 9... to the right end in sequence. Among them, the first bending section 8 starts from the left end and smoothly bends forward and obliquely to the right, and the second bending section 9 starts from the end point of the first bending section 8 and smoothly bends backward and obliquely to the right. The starting point of the first bending section 8 and the end point of the second bending section 9 are in the same position in the front-back direction. Thus, the side wall 7 forms a periodic curved structure. Among them,Figure 4 The ranges of the first bending section 8 and the second bending section 9 are marked by dashed lines. At the same time, the width of the support channel 6 is marked by a dashed line, and this width is represented by the letter d in Figure 3 . Obviously, the width of the support channel 6 is the distance between the lower edges of the corresponding positions of the two side walls 7 forming the support channel 6 in the arrangement direction.

[0058] At the same time, continuing to refer to Figure 3 , taking the side wall 7 in the above example as an example, for another side wall 7 adjacent below or above the side wall 7, the positions of the first bending sections 8 of the two are staggered, and the positions of the second bending sections 9 of the two are also staggered. The staggering here means that within the left and right ranges defined by the starting point and the ending point of the first bending section 8 or the second bending section 9 of one side wall 7, for another adjacent side wall 7, the starting point or the ending point of the first bending section 8 or the second bending section 9 on it is not within this left and right range. That is to say, the bending sections on the adjacent side walls 7 are not completely opposite to each other.

[0059] Referring to Figure 4 , the side walls 7 of the support layer 2 of the first layer are gradually laid and formed upwards. Figure 5 As can be seen in , the starting points and ending points of the first bending section 8 and the second bending section 9 in the side walls 7 of the support layer 2 are all inclined along the extending direction of the corresponding air chamber channels. And in the support layer 2 of the first layer, the starting points and ending points of the first bending section 8 and the second bending section 9 of one side wall 7 are all inclined towards the left, and for another side wall 7 adjacent to this side wall 7, the starting points and ending points of the first bending section 8 and the second bending section 9 on it are all inclined towards the right. In this way, in the same support layer 2, the adjacent side walls 7 have a tendency to get closer to each other the closer they are to the junction 10 of the adjacent support layers 2. After that, referring to Figure 5 and Figure 6 , the support layer 2 of the first layer and the support layer 2 of the second layer intersect. At this time, the uppermost part of the side wall 7 of the support layer 2 of the first layer starts to connect with the adjacent side wall 7. The connection position is where the starting point of the first bending section 8 on one side wall 7 connects with the ending point of the first bending section 8 on the other side wall 7, and the starting point of the second bending section 9 on the side wall 7 connects with the starting point of the second bending section 9 on the other side wall 7. Taking the paper surface direction of Figure 6 as an example, at the position of this junction 10, the side wall 7 of the support layer 2 of the second layer starts to present a form extending in the up and down direction. After that, referring to Figure 2 , the side wall 7 of the support layer 2 of the second layer gradually extends upwards, and the degree of bending gradually decreases. The main part of the side wall 7 presents a form extending in the up and down direction. After that, referring to Figure 7 , the side walls 7 of the support layer 2 of the second layer will also gradually get closer to each other until they are connected to form the junction 10. After that, referring to Figure 8 , the side walls 7 of the support layer 2 of the third layer are also gradually formed.

[0060] Refer to Figure 3 、 Figure 4 and Figure 5 wherein the starting and ending directions of the first bending section 8 and the second bending section 9 are marked by dashed lines. It can be seen that the starting point of the first bending section 8 in the same side wall 7 inclines gradually along the right side and approaches the side wall 7 above it, and the ending point of the first bending section 8 inclines gradually along the right side and approaches the side wall 7 below it. The starting point of the next second bending section 9 is the ending point of the first bending section 8, and the ending point of the second bending section 9 is the starting point of the next first bending section 8.

[0061] Wherein, the dimension of the support layer 2 in the thickness direction is the distance between the lower edges of the two side walls 7 forming any one of the support channels 6 in the support layer 2 and the joint 10 corresponding to the two side walls 7 in the thickness direction. During the 3D printing process, under the same flow rate, the thickness of each printing layer is equal. At the same time, according to the above description, for the side wall 7 corresponding to a support channel 6, when printing a new printing layer, it is necessary to rotate the printing layer by a certain angle in the horizontal direction so that the side walls 7 tend to approach each other. Therefore, when it is necessary to stretch the dimension of the support layer 2 in the thickness direction in the support area 4, the rotation angle of each new printing layer is smaller than that of the conventional printing layer. In terms of the overall performance of the side wall 7, that is, the torsion angle of the side wall 7 is more gentle.

[0062] In the above-mentioned support component 1, a plurality of support layers 2 are arranged in the thickness direction. The support layers 2 form support channels 6, and air can be accommodated in the support channels 6. At the same time, the channel directions of the support channels 6 of adjacent support layers 2 are perpendicular to each other, and adjacent support layers 2 are connected to each other. That is, a sealed air chamber can be formed by the enclosure of the outer shell 5. When the support component 1 is subjected to a downward pressure, the support component 1 is squeezed as a whole, so that the air in the support channel 6 is compressed. When the pressure is removed, the air will return to its original volume. In this process, the compression and restoration of the air can play a certain shock-absorbing role. At the same time, adjacent support layers 2 will support each other. And because the support channels 6 of adjacent support layers 2 are in an interlaced form, when the support component 1 is squeezed, the force received will be quickly and evenly dispersed throughout the support component 1, so as to provide a better shock-absorbing effect through the entire support component 1. In the support layer 2, the support channel 6 is formed by the cooperation of the side walls 7. The side walls 7 are provided with a first bending section 8 and a second bending section 9. Compared with the straight side walls 7, the curved side walls 7 have a larger equivalent support area in the arrangement direction. When subjected to a downward pressure, the side walls 7 themselves can form a certain support, and then can be transmitted to the entire support component 1, improving the shock-absorbing effect of the sole protection and shock-absorbing structure; at the same time, in the same support layer 2, adjacent side walls 7 tend to approach each other, and there is a connecting part between adjacent side walls 7. The structure of approaching each other makes the force transmission faster and can make the support performance of the side walls 7 better. The connection of adjacent side walls 7 can make the connection part between adjacent support layers 2 more stable, and increase the equivalent contact area of the connection part, improving the support performance, and further improving the overall shock-absorbing effect; the first bending section 8 and the second bending section 9 are inclined, which can make adjacent side walls 7 easier to be connected into one body, and the connection positions are staggered from each other, reducing the influence of too concentrated stress, thereby improving the overall shock-absorbing effect.

[0063] Moreover, the upper side portion of the support component 1 forms a shock-absorbing area 3 by the support layer 2, and the lower side portion forms a support area 4 by the support layer 2. The support layer 2 in both has different dimensions in the thickness direction, thereby providing different performances. Specifically, based on the above support layer 2, if the structural dimensions of each support layer 2 are equal, that is, the support component 1 is uniform in the thickness direction, then the support component 1 can only provide a single performance. For example, due to the above structure, the support component 1 can have a good shock-absorbing effect, but the support effect when contacting the ground is poor. At this time, the support performance of this part can be improved by increasing the density or filling rate of the lower side portion of the support component 1, but this will cause an increase in the overall density of the support component 1. Under the same shape and size, the weight of the support component 1 will increase, which is not conducive to the lightweight of the sole structure. Therefore, in the support component 1 of this technical solution, the widths of the support channels 6 are kept consistent, and at the same time, the dimension of the support layer 2 in the support area 4 in the thickness direction is elongated. Since the support layer 2 in the support area 4 is stretched in the thickness direction while the width of its support channel 6 remains the same as before, the deflection angle of the side wall 7 for forming the support channel 6 in the support layer 2 of the support area 4 will decrease. Under the same thickness of the side wall 7, there are more overlapping parts in the thickness direction inside the side wall 7, so as to provide a better support effect. Moreover, since only the support layer 2 is stretched in the thickness direction, the density or filling rate of the support layer 2 in the support area 4 is still the same as that of the support layer 2 in the shock-absorbing area 3, and the overall density of the support component 1 does not change, thereby improving the shock-absorbing performance and support performance of the sole structure while achieving lightweight.

[0064] In addition, the first bending section 8 and the second bending section 9 are inclined, which can make the adjacent side walls 7 easier to be joined together as a whole, and the joining positions are staggered from each other, reducing the influence of excessive stress concentration, thereby improving the overall shock-absorbing effect. Making the bending degree of the part of the side wall 7 closer to the joint 10 of the support layer 2 larger can make the joining of the adjacent side walls 7 smoother, avoid sudden changes in the structure, and enhance the resilience performance of the support component 1.

[0065] Furthermore, in the sole structure involved in this embodiment, the filling rate of each support layer 2 is equal, and the filling rate is the volume occupied by the side wall 7 in the support layer 2 in the space enclosed by the outer shell 5. The equal filling rate of each support layer 2 ensures that the overall density of the support component 1 does not change compared with the conventional structure, thus ensuring the lightweight of the sole structure; and the equal filling rate of the support layer 2 enables the connection and transition between the adjacent support layers 2 in the thickness direction to still maintain adaptation and will not occur the situation of staggered layers, so that the force and force transmission of the support component 1 as a whole are balanced.

[0066] As a feasible implementation manner, the sizes of the respective support layers 2 in the support assembly 1 in the thickness direction can be gradually increased from top to bottom. Since the support assembly 1 is formed by arranging a plurality of support layers 2 in the thickness direction, the size of each support layer 2 in the thickness direction can be adjusted, so that all the support layers 2 exhibit a structure in which the size in the thickness direction gradually increases from top to bottom, and several support layers 2 in the upper part form a shock-absorbing area 3, and several support layers 2 in the lower part form a support area 4. The gradual change in size can enable the support assembly 1 to gradually exhibit a functional change from better shock-absorbing performance to better support performance as a whole. The size change between adjacent support layers 2 is small, which can avoid the occurrence of a fault change in performance in the thickness direction, and the wearing feel is more comfortable.

[0067] In this embodiment, the sizes of the respective support layers 2 in the shock-absorbing area 3 in the thickness direction are equal, and the sizes of the respective support layers 2 in the support area 4 in the thickness direction are equal. With such a setting, the structural consistency of the support layers 2 inside the shock-absorbing area 3 and the support area 4 is better, and at the same time, better shock-absorbing performance and support performance can be maintained.

[0068] The size of the support layer 2 in the thickness direction in the rebound area 11 is larger than that in the shock-absorbing area 3 and smaller than that in the support area 4. Moreover, the sizes of the respective support layers 2 in the rebound area 11 in the thickness direction are equal. By providing a rebound area 11 between the shock-absorbing area 3 and the support area 4, and the sizes of the support layers 2 in the shock-absorbing area 3, the rebound area 11, and the support area 4 in the thickness direction gradually increase, such a design can enable a smoother transition between the shock-absorbing, rebound, and support performances of the sole structure. When the foot touches the ground, the shock-absorbing area 3 acts first to absorb the impact force; then the rebound area 11 can effectively convert the absorbed energy into a rebounding force to provide assistance for the next movement; finally, the support area 4 provides stable support to ensure the stability of the foot during movement. This gradual structural design can avoid the abrupt transition between different performance areas, thereby providing a more comfortable and natural wearing experience, especially suitable for the dynamic requirements in various sports scenarios. The sizes of the respective support layers 2 in the rebound area 11 in the thickness direction are equal, ensuring the consistency and stability of the internal structure of the rebound area 11. After being deformed under pressure, the support layers 2 with equal sizes can return to their original state in a relatively uniform manner, thereby providing a stable and predictable rebounding force. This stability helps to reduce the performance fluctuations of the sole during use, enabling the user to feel a consistent rebounding effect in each step of movement, enhancing the rhythm and comfort of the movement, and at the same time, it also helps to extend the service life of the sole structure, because uniform stress and deformation can reduce the risk of local excessive wear.

[0069] Furthermore, the dimension of the support layer 2 in the thickness direction in the rebound area 11 is 1.1 times the dimension of the support layer 2 in the thickness direction in the shock absorption area 3; the dimension of the support layer 2 in the thickness direction in the support area 4 is 1.2 times the dimension of the support layer 2 in the thickness direction in the shock absorption area 3.

[0070] Specifically, in actual preparation, as a preferred implementation manner, only one support layer 2 is provided in the shock absorption area 3, the rebound area 11, and the support area 4. The filling rate of each support layer 2 is about 20%, and the thickness of each printing layer is set to 0.2 mm. Among them, the dimensions of each support layer 2 in the thickness direction in the shock absorption area 3 are equal. The swing angle of each printing layer is about 10.5 - 11°. After swinging one week, a support layer 2 is formed, and the dimension of this support layer 2 in the thickness direction is about 6.6 mm. In the rebound area 11, the height of the support layer 2 is about 7.26 mm, and the swing angle of each printing layer is about 9.8 - 10.2°. In the support area 4, the height of the support layer 2 is about 7.92 mm, and the swing angle of each printing layer is about 8.9 - 9.2°.

[0071] The above - mentioned proportional change has a good feedback in practical applications. The moderately increased thickness of the rebound area 11 relative to the shock absorption area 3 enables it to better play the rebound function while having a certain shock absorption ability, effectively feedback the energy to the foot, and improve the efficiency and smoothness of movement. The further increased thickness of the support area 4 ensures a strong support force when the sole contacts the ground, can withstand greater pressure without excessive deformation, provides a solid foundation for the foot, and guarantees the safety of movement. Especially in high - intensity sports or complex terrains, this design can better meet the comprehensive requirements of the sole structure for different performances.

[0072] The descriptions of the above - mentioned specification and embodiments are used to explain the protection scope of the present invention, but do not constitute a limitation to the protection scope of the present invention. Through the inspiration of the present invention or the above - mentioned embodiments, those of ordinary skill in the art, combined with common general knowledge, ordinary technical knowledge in the art, and / or existing technologies, can obtain through logical analysis, reasoning, or limited experiments modifications, equivalent replacements, or other improvements to the embodiments of the present invention or some of its technical features, which should all be included within the protection scope of the present invention.

Claims

1. A sole structure with functional changes in the direction of sports force, characterized in that: include: A support assembly (1) having a plurality of support layers (2) arranged in a thickness direction, wherein an upper portion of the support assembly (1) is formed by at least one of the support layers (2) to form a shock absorbing region (3), and a lower portion of the support assembly (1) is formed by at least one of the support layers (2) to form a support region (4); and A housing (5) enclosing the outer side of the support assembly (1); In the support assembly (1), for each of the support layers (2), mutually perpendicular arrangement directions and channel directions are defined; each of the support layers (2) is provided with a plurality of support channels (6) arranged in sequence along the arrangement direction, and each of the support channels (6) located in the same support layer (2) extends along the channel direction; adjacent support layers (2) are interconnected, and their corresponding arrangement directions are mutually perpendicular, and the channel directions are also mutually perpendicular; the support channel (6) is formed by two opposite side walls (7) arranged along the arrangement direction corresponding to the support layer (2); the side wall (7) is periodically arranged with a first curved section (8) and a second curved section (9) connected end to end along the channel direction corresponding to the support layer (2) on which it is located, and the bending directions of the first curved section (8) and the second curved section (9) are opposite; Between two adjacent side walls (7) in a supporting layer (2), the positions of the respective first curved sections (8) are staggered, and the positions of the respective second curved sections (9) are also staggered; in the same supporting layer (2), the adjacent side walls (7) have a tendency to be closer to each other as they approach a junction (10) of the adjacent supporting layers (2), and at the junction (10) of the adjacent supporting layers (2), in the same supporting layer (2), the starting point of the first curved section (8) of the side wall (7) is connected to the end point of the first curved section (8) of the other adjacent side wall (7) staggered therewith, and the starting point of the second curved section (9) of the side wall (7) is connected to the end point of the second curved section (9) of the other adjacent side wall (7) staggered therewith, so that the support channels (6) in the adjacent supporting layers (2) are connected; In the support assembly (1), the widths of the support channels (6) are consistent, and the dimension of the support layer (2) in the shock-absorbing area (3) in the thickness direction is smaller than the dimension of the support layer (2) in the support area (4) in the thickness direction; the width of the support channel (6) is the distance between the lower edges of the two side walls (7) forming the support channel (6) in the arrangement direction; the dimension of the support layer (2) in the thickness direction is the distance between the lower edges of any two side walls (7) forming the support channel (6) in the support layer (2) and the corresponding joints (10) of the two side walls (7) in the thickness direction.

2. A sole structure with functional changes in the direction of sports force as claimed in claim 1, characterized in that: The filling rate of each supporting layer (2) is equal, and the filling rate is the volume occupied by the side wall (7) in the supporting layer (2) in the space enclosed by the outer shell (5) of the supporting layer (2).

3. A sole structure with functional changes in the direction of sports force as claimed in claim 2, characterized in that: The dimensions of each support layer (2) in the support assembly (1) in the thickness direction gradually increase from top to bottom.

4. A sole structure with functional changes in the direction of sports force as claimed in claim 2, characterized in that: The dimensions of each support layer (2) in the shock-absorbing area (3) in the thickness direction are equal, and the dimensions of each support layer (2) in the support area (4) in the thickness direction are equal.

5. A sole structure with functional changes in the direction of force in sports as claimed in claim 4, characterized in that Between the shock absorbing area (3) and the supporting area (4), a rebound area (11) is formed by at least one supporting layer (2); the dimensions of the supporting layer (2) in the shock absorbing area (3), the rebound area (11) and the supporting area (4) gradually increase in the thickness direction.

6. A sole structure with functional changes in the direction of force in sports as claimed in claim 5, characterized in that: The dimensions of each support layer (2) in the rebound area (11) in the thickness direction are equal.

7. A sole structure with functional changes in the direction of force in sports as claimed in claim 6, characterized in that: The dimension of the support layer (2) in the rebound area (11) in the thickness direction is 1.1 times the dimension of the support layer (2) in the shock absorbing area (3) in the thickness direction; the dimension of the support layer (2) in the support area (4) in the thickness direction is 1.2 times the dimension of the support layer (2) in the shock absorbing area (3) in the thickness direction.

8. The sole structure with functional changes in the direction of sports force as claimed in claim 1, characterized in that: The starting points and the end points of the first curved section (8) and the second curved section (9) in the side wall (7) are inclined along the extension direction of the corresponding supporting channel (6), and the corresponding inclination directions of the first curved section (8) and the second curved section (9) in the same side wall (7) are the same, while the corresponding inclination directions in adjacent side walls (7) are opposite.

9. A sole structure with functional changes in the direction of sports force as claimed in claim 8, characterized in that: The closer the side wall (7) is to the joint (10) of the adjacent support layers (2), the greater the degree of curvature.

10. A footwear product comprising a shoe upper, characterized in that: It also includes a sole structure with functional changes in the direction of force in motion as described in any one of claims 1 to 9, and the upper is attached to the sole structure.

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