Modularized shoe system based on telescopic base shoe and replaceable sock

Abstract

The invention discloses a modular shoe system based on a telescopic base shoe and a replaceable sock. The modular shoe system comprises the telescopic base shoe, the sock and a connecting assembly. The telescopic base shoe comprises a sole and a supporting vamp; the sole is provided with a plurality of grooves for guiding deformation; a plurality of stress release grooves are formed in the area, corresponding to the instep, of the supporting vamp, a plurality of stress release holes are formed in the areas, corresponding to the two sides of the foot, of the supporting vamp, each stress release hole is provided with a bent hole channel, and the two ends of each hole channel are consistent with the grooves and the stress release grooves in direction respectively; the sock cover comprises a flexible sleeve with a foot wrapping function; the connecting assembly is arranged in the instep area, the sole area or the heel area and used for connecting the telescopic base shoe and the sock.

Description

Technical Field

[0001] This invention belongs to the field of footwear technology, specifically relating to a modular shoe system based on a telescopic base shoe and replaceable socks. Background Technology

[0002] Footwear is an essential part of daily life, and its fit and functionality are of paramount importance. However, the traditional footwear industry suffers from several long-standing problems that have remained unresolved:

[0003] 1. The contradiction between fixed shoe size and dynamic foot growth: Children's feet grow rapidly, causing shoes to often become unusable before the soles wear out due to being too small, resulting in huge economic waste and resource consumption. Although there are shoes with adjustable Velcro or straps, their adjustment range is limited, only changing the girth and unable to adapt to significant changes in foot length, making it impossible to achieve "wearing a pair of shoes until they wear out".

[0004] 2. The contradiction between functional simplicity and diverse needs in different scenarios: To cope with different scenarios (such as sports, commuting, outdoor activities, and leisure), consumers often need to purchase multiple pairs of shoes with different functions. This not only increases the economic burden on consumers but also leads to idle and wasted resources. Modular shoe designs that have emerged on the market attempt to solve this problem, but they usually only focus on changing the style of the upper and fail to combine this with solving the size problem.

[0005] To address functional issues, existing technologies have introduced modular shoe designs that allow for style changes through replaceable uppers or shoe covers. These designs allow users to alter the shoe's appearance by replacing external components of the upper. However, the functional switching in such solutions largely remains at the visual style level, and these replaceable components are based on fixed-size base shoes, failing to address the issues of minor size adjustments for different scenarios or sizing discomfort caused by foot growth. Furthermore, these designs are typically structurally complex, inconvenient to replace, and struggle to balance stability and lightweight movement after replacement.

[0006] Furthermore, regarding the issue of size, while the concept of stretchable soles has emerged in existing technologies, their commercialization faces a core bottleneck: the lack of an upper system that can coordinate with the stretching and maintaining structural stability. Combining traditional fixed uppers with stretchable soles can lead to excessive stretching or even tearing of the upper when the sole extends, and material buildup when the sole contracts, affecting comfort and safety. More seriously, the upper cannot provide continuous and stable support for the foot and ankle after stretching.

[0007] Therefore, there is an urgent need in this field for an integrated solution that can simultaneously address the three major challenges of size adaptability, functional versatility, and structural integrity, thereby achieving true sustainability, economy, and personalization in footwear. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a modular shoe system based on a telescopic base shoe and replaceable sock liner, which solves the problems of balancing size adaptability, functional diversity and structural integrity in the above-mentioned background art.

[0009] The technical solution adopted by the present invention to solve its technical problem is: to provide a modular shoe system based on a telescopic base shoe and a replaceable sock, including a telescopic base shoe, a sock, and a connecting component;

[0010] The telescopic base shoe includes a sole and a supporting upper; the sole is provided with a plurality of grooves for guiding deformation; the supporting upper is provided with a plurality of stress relief grooves in the area corresponding to the instep, and a plurality of stress relief holes are provided in the areas corresponding to both sides of the foot, the stress relief holes having curved channels, and the two ends of the channels being aligned with the direction of the grooves and stress relief grooves respectively.

[0011] The socks include a flexible sleeve that wraps around the foot; such as a stretchable elastic knitted structure made of neoprene or Flyknit material.

[0012] The connecting component is located on the instep, sole, or heel area and is used to connect the retractable base shoe and sock.

[0013] In a preferred embodiment of the present invention, the connecting component includes Velcro, male and female buckles, zippers, magnetic components, ties, etc.

[0014] In a preferred embodiment of the present invention, the supporting upper has an opening in the corresponding instep area, the opening extending to the front of the collar; the sock forms a second upper at least in the corresponding instep area.

[0015] In a preferred embodiment of the present invention, a plurality of serrations are symmetrically arranged on both sides of the opening, the serrations extend obliquely upward from back to front, and the stress relief groove is formed between adjacent serrations.

[0016] In a preferred embodiment of the present invention, the front end of the saw teeth is connected to a plurality of hook and loop tapes, the hook and loop tapes extending from one side of the saw teeth to the opposite side of the saw teeth, and the opposite side of the saw teeth is provided with a velvety surface.

[0017] In a preferred embodiment of the present invention, the front end of the serration is provided with a shoelace hole, and the shoelace passes through the shoelace hole.

[0018] In a preferred embodiment of the present invention, the height of the sock opening is not lower than the height of the collar of the supporting shoe upper; the supporting shoe upper has a through hole on the front or back, and the connecting component includes a strap, which passes through the through hole to form a ring fixation.

[0019] In a preferred embodiment of the present invention, the thickness of the sole is greater than the groove depth, so that the sole has a protective wall with a thickness of at least 3 mm.

[0020] In a preferred embodiment of the present invention, the outer surface of the sole is provided with a wear-resistant layer and a limiting member, the wear-resistant layer being disposed away from the groove; the space formed by the bending of the limiting member in the non-limiting state matches the contour of the groove, and when the groove unfolds to a preset value, the limiting member changes from a relaxed state to a tensile state.

[0021] In a preferred embodiment of the present invention, the inner surface of the sole is provided with an insert, which is detachably filled into the groove.

[0022] In a preferred embodiment of the present invention, the modular shoe system further includes an insole located between the retractable base shoe and the sock liner.

[0023] In a preferred embodiment of the present invention, the connecting component disposed in the foot area includes Velcro, wherein the hook side or the fleece side of the Velcro is disposed on the inner surface of the sole, avoiding the groove, and the fleece side or the hook side of the Velcro is correspondingly disposed on the foot area of ​​the sock or the lower surface of the insole.

[0024] In a preferred embodiment of the present invention, the sock is made of a flexible textile material and further includes a waterproof layer and a pattern layer, wherein the pattern layer is located on the second upper of the sock.

[0025] In a preferred embodiment of the present invention, the sock is an integral flexible sleeve or a sleeve composed of a sock body and a shoe tongue.

[0026] Compared with the prior art, this technical solution has the following advantages:

[0027] 1. This invention transforms traditional footwear from a short-term, single product into a "multifunctional sustainable platform." The base shoe serves as a durable platform, while the socks on it can be continuously iterated and enriched as functional modules, solving the inherent problems of traditional footwear in terms of size adaptation, functional diversity, and structural support.

[0028] 2. This invention, through the overall synergistic expansion of the stretchable base shoe structure and the flexible sock liner, can not only adapt to small-range local fine adjustments, but also enable a single pair of shoes to cover multiple foot types and sizes, and even cover the entire growth stage from childhood to adulthood, fundamentally solving the problem of frequent shoe replacement due to changes in foot size requirements;

[0029] 3. The base shoe of this invention uses the same core structure and can switch between different footwear functions at any time for different scenarios through a quick-change sock liner. Different types of shoes (such as casual shoes, outdoor shoes, and sports shoes) can be obtained without purchasing and stockpiling multiple pairs of shoes, and without changing the core structure; the pattern layer design of the sock liner can also highlight personalization and realize the product diversity of one shoe for multiple uses.

[0030] 4. This invention establishes a coordination system that uses the adaptive stretching of the insole (such as a rubber outsole or ETPU outsole) in the base shoe, combined with the three-dimensional support rigidity of the upper (CPU / TPU support frame) and the elastic sock liner as a synchronously expanding whole. This system can provide stable support for the foot in any size, completely solving the safety hazards of insufficient support in ordinary stretch shoes and achieving an ultimate personalized fit experience. Attached Figure Description

[0031] Figure 1 This is a diagram of the shoe structure in its initial state as described in Example 1.

[0032] Figure 2 This is a diagram of the shoe structure in the stretched state as shown in Example 1.

[0033] Figure 3 This is a diagram of the sole structure of Example 1;

[0034] Figure 4 This is a structural diagram of the insert in Example 1;

[0035] Figure 5 This is a diagram illustrating the fit between the insert and the shoe sole in Example 1.

[0036] Figure 6 This is a cross-sectional view of the sole with the insert in Example 1;

[0037] Figure 7 This is a structural diagram of the sock liner from Example 1; Figure 8 This is a structural diagram of the insole in Example 2;

[0038] Figure 9 This is a diagram showing the location of the Velcro strap on the sole of the shoe in Example 2;

[0039] Figure 10 This is a structural diagram of the retractable base shoe in Example 3;

[0040] Figure 11 This is a schematic diagram of the Velcro strap in Example 4;

[0041] Figure 12 This is a shoe structure diagram from Example 5;

[0042] Figure 13 This is a structural diagram of the high-top shoe style in Example 6;

[0043] Figure 14This is a diagram of the sole structure in Example 8;

[0044] Figure 15 This is a side view of the shoe in Example 8.

[0045] 1-Outsole, 11-Flexible midsole, 111-Groove, 112-Unit block, 12-Outsole, 121-Abrasion layer, 122-Limiting component, 13-Insertion, 14-Sidewall wrapping, 15-Insole;

[0046] 2-Supporting upper, 21-Opening, 22-Supporting frame, 221-Serrated, 222-Stress relief groove, 223-Arched contour, 224-Shoelace eyelet, 225-Connecting rib, 226-Edge strip, 227-Hook and loop strap, 23-Stress relief hole, 24-Toe, 241-(Toe) through hole, 25-Heel, 251-(Back) through hole, 252-Leg;

[0047] 3-Sole liner, 31-Second upper, 33-Tongue;

[0048] 41- Velcro, 43- Shoelace, 45- Lace-up Detailed Implementation

[0049] It should be noted that the terms "longitudinal," "lateral," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Example

[0051] This embodiment discloses a modular shoe system based on a telescopic base shoe and a replaceable sock liner 3, including a telescopic base shoe, a sock liner 3, and a connecting component. The telescopic base shoe includes an integrally molded sole 1 and a supporting upper 2. The sock liner 3 includes a flexible sleeve with a foot-wrapping function. The connecting component is disposed in the instep, sole, or heel area for connecting the telescopic base shoe and the sock liner 3.

[0052] The sole 1 includes a flexible midsole 11 and an outsole 12. The surface of the flexible midsole 11 is distributed with a plurality of grooves 111 for guiding deformation. The extension direction of the grooves 111 is perpendicular to the extension and contraction direction of the flexible midsole 11, and the grooves 111 divide the surface of the flexible midsole 11 into a plurality of unit blocks 112. The outsole 12 is disposed on the lower surface of the flexible midsole 11 and includes a plurality of wear-resistant layers 121 and limiting members 122. The wear-resistant layers 121 cover the surface of the unit blocks 112 respectively. The limiting members 122 bend and are received in the grooves 111 in the non-limiting state and are connected at both ends to the wear-resistant layers 121 on the surfaces of two adjacent unit blocks 112.

[0053] The grooves 111 are spaced apart along the length and width of the flexible midsole 11, forming a groove grid composed of transverse and longitudinal grooves. The limiting member 122 is U-shaped. The wear-resistant layer 121 has a thickness of 3-5 mm, but the limiting member 122 has a thickness of no more than 2 mm. It is positioned across the transverse and longitudinal grooves and avoids the gaps at their intersections, which helps to control its mechanical properties.

[0054] The grooves 111 are distributed on the upper and lower surfaces of the flexible midsole 11. The upper surface grooves 111 and the lower surface grooves 111 have the same extending direction, but their projections do not coincide in the direction perpendicular to the flexible midsole 11. Typically, the transverse and longitudinal grooves are arranged approximately parallel and spaced apart along the length and width directions of the flexible midsole 11, allowing for local fine-tuning through stretching adaptation between different grooves 111. More specifically, the transverse and longitudinal grooves are designed to adapt to the shoe shape. The transverse grooves generally run along the width direction of the sole 1 and have openings 21 at both ends, while the longitudinal grooves generally run along the length direction of the sole 1 and do not have openings 21 at both ends (to ensure the integrity of the front and rear arcs of the shoe). The groove 111 arrangement in this embodiment can better adapt to the user's local fine-tuning in the stretching direction. To further ensure stability and wearing comfort, an insert 13 is provided within the upper surface groove 111. The insert 13 is mesh-shaped and can be detachably filled into the transverse grooves, longitudinal grooves, and the gaps at their intersections.

[0055] The depth of the upper surface groove 111 and the lower surface groove 111 is less than the thickness of the flexible midsole 11 (at least 3 mm distance difference in the stretched state), and the misalignment distance between the two at the projected position is at least 3 mm, so as to prevent external sharp objects from penetrating the sole 1, and at the same time achieve waterproof and other functions.

[0056] The supporting upper 2 has an opening 21 in the corresponding instep area, which extends from the corresponding instep area to the front of the collar 252. The opening 21 has a supporting frame 22, which includes a plurality of serrations 221 symmetrically arranged along the two sides of the opening 21. The serrations 221 extend obliquely upward from back to front, and stress relief grooves 222 are formed between adjacent serrations 221. A plurality of stress relief holes 23 are provided in the area on both sides of the foot. The stress relief holes 23 have curved channels, and the two ends of the channels are aligned with the directions of the grooves 111 and the stress relief grooves 222, respectively.

[0057] The supporting upper 2 also includes a toe box 24 that wraps around the toes and a heel box 25 that wraps around the heel, with a through hole 251 on the heel box 25. The toe box 24, the heel box 25, and the area between them corresponding to the sides of the foot are integrally formed, and even the sole 1 is integrally formed, with materials including ETPU and TPE. The supporting frame 22 is made of TPU.

[0058] In this embodiment, the serrations 221 form a shoe ear-like structure that can open relatively to enlarge the instep opening 21, accommodating a wider range of girth variations. The sock liner 3 forms a second upper 31 at least in the corresponding instep area. Simultaneously, to ensure the strength of the support frame 22, the support frame 22 has an arc-shaped contour 223 at the connection between the root of the serrations 221 and the upper body. The number of arcs in the arc-shaped contour 223 matches the number of serrations 221, and the curvature of the arc is greater than the curvature of the flange and groove of the serrations 221. Besides "connection," the arc-shaped contour 223 also facilitates the transition between different materials, absorbing minor displacements caused by stiffness differences. This results in an effective stress transmission chain in the overall structure, guided by "primary stress dispersion through the serrations 221 and stress release grooves 222, and secondary stress release from the tooth root to the upper body," avoiding cracks caused by high stress concentration at right-angle connections. In addition, the supporting frame 22 also includes an edge banding strip 226, which extends from the serrations 221 toward the collar 252 and covers the collar 252 to ensure the elasticity, stability and durability of the shoe upper.

[0059] The connecting components include Velcro 41, shoelaces 43, and laces 45. The front end of the serrations 221 has shoelace holes 224, through which the shoelaces 43 pass to secure the sock 3. Since the height of the sock 3's opening is not lower than the collar height of the supporting upper 2, and the supporting upper 2 has a through hole 251 on the heel counter, the laces 45, located in the heel area of ​​the sock 3, pass through the through hole 251 to form a ring for fixation. The Velcro 41 is located on the sole area of ​​the sock 3 and the inner surface of the sole 1, avoiding the grooves 111.

[0060] The sock liner 3 is made of flexible textile material and can be equipped with waterproof layer, heat insulation layer, etc. as needed. It can also be equipped with pattern layer. The pattern layer is located on the second shoe upper 31 formed by the sock liner 3. By changing the sock liner 3, it can achieve diversified applications in multiple scenarios.

[0061] Example 2

[0062] The difference between this embodiment and Embodiment 1 is that it also includes an insole 15, which is located between the sole 1 and the sock liner 3. The connecting component includes a Velcro 41, the hook or loop side of which is disposed on the inner surface of the sole 1, avoiding the groove 111, and the lower surface of the insole 15 is correspondingly provided with the loop or hook side of the Velcro. In this embodiment, two Velcro straps are provided at the forefoot and heel respectively to achieve a detachable connection between the sole 1 and the insole 15.

[0063] Example 3

[0064] The difference between this embodiment and Embodiment 1 is that the structure of the supporting upper 2 is adjusted, and a through hole 241 is provided at the toe 24. The through hole 241 is used to fix the insole 15 or the sock liner 3. An insole rope can be provided at the front end of the insole 15, which passes through the through hole 241 to further fix the insole 15 and prevent it from shifting or coming off during wearing or exercise (especially suitable for children). Furthermore, the insole rope or the sock liner's ties can also be tied to the shoelaces to achieve the fixation of the stretchable base shoe, the insole 15, and the sock liner 3.

[0065] Example 4

[0066] The difference between this embodiment and Embodiment 1 is that the front end of the serration 221 is provided with several Velcro straps 227. Specifically, the original shoelace hole position at the front end of one side of the serration 221 is changed to a Velcro velvet surface, and the other side of the serration 221 is connected to a strip of Velcro with the hook side facing down. The hook side can be attached to the Velcro velvet surface at the front end of the serration 221, or it can be attached to the second upper 31 of the sock liner 3. This embodiment allows the shoe opening to be widened, making it easier to put on.

[0067] Example 5

[0068] The difference between this embodiment and embodiment 1 is that the supporting frame 22 further includes a connecting rib 225, which connects the front end of the adjacent sawtooth 221 and makes the stress relief groove 222 form a closed hole.

[0069] Example 6

[0070] In this embodiment, the heel portion 25 is designed as a high-top, mid-top, or low-top style as needed. A lace-up 45 is provided at the heel of the sock liner 3, and an opening 251 is provided at the heel portion 25 of the supporting upper 2 for threading the lace-up 45. This allows for adaptation to various needs and scenarios by combining sock liners 3 of different heights.

[0071] Example 7

[0072] The difference between this embodiment and Embodiment 1 is that:

[0073] The sock liner 3 is a flexible sleeve-shaped structure composed of a shoe tongue 33 and a sock liner body. The shoe tongue 33 serves as a second upper and can be fitted with a patterned layer.

[0074] Example 8

[0075] The difference between this embodiment and embodiment 1 is that the wear-resistant layer 121 area of ​​the outsole 12 extends upward to form a sidewall wrap 14, realizing full rubber outsole coverage of the wear-resistant area of ​​the sole, which can expand synchronously with the sole.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular shoe system based on a telescopic base shoe and replaceable sock liners, characterized in that: Includes retractable base shoes, sock liners, and connecting components; The telescopic base shoe includes a sole and a supporting upper; the sole is provided with a plurality of grooves for guiding deformation; the supporting upper is provided with a plurality of stress relief grooves in the area corresponding to the instep, and a plurality of stress relief holes are provided in the areas corresponding to both sides of the foot, the stress relief holes having curved channels, and the two ends of the channels being aligned with the direction of the grooves and stress relief grooves respectively. The socks include a flexible sleeve that wraps around the foot; The connecting component is located on the instep, sole, or heel area and is used to connect the retractable base shoe and sock.

2. The modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 1, characterized in that: The supporting upper has an opening in the corresponding instep area, and the opening extends to the front of the collar; the sock liners form a second upper at least in the corresponding instep area.

3. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 2, characterized in that: Several serrations are symmetrically arranged on both sides of the opening. The serrations extend obliquely upward from back to front, and the stress relief groove is formed between adjacent serrations.

4. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 3, characterized in that: The front end of the saw teeth is connected to several Velcro straps, which extend from one side of the saw teeth to the opposite side, and the opposite side of the saw teeth is provided with a velvety surface.

5. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 3, characterized in that: The connecting component includes a shoelace threaded through the front eyelet of the serration.

6. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 4, characterized in that: The height of the sock opening is not lower than the height of the collar of the supporting shoe upper; the supporting shoe upper has a through hole on the front or back, and the connecting component includes a strap that passes through the through hole to form a ring fixation.

7. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 1, characterized in that: The sole thickness is greater than the groove depth and the sole has a protective wall with a thickness of at least 3 mm.

8. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 7, characterized in that: The outer surface of the sole is provided with a wear-resistant layer and a limiting member. The wear-resistant layer is set to avoid the groove. The space formed by the bending of the limiting member in the non-limiting state matches the contour of the groove. When the groove expands to a preset value, the limiting member changes from a relaxed state to a tensile state.

9. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 7, characterized in that: The inner surface of the sole is provided with an insert that is removably filled into a groove.

10. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 9, characterized in that: It also includes an insole, which is located between the sole and the sock liner.

11. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 10, characterized in that: The connecting components located in the foot area include Velcro, with the hook or loop side of the Velcro distributed on the inner surface of the sole and avoiding the groove. The foot area of ​​the sock or the lower surface of the insole is correspondingly provided with the loop or hook side of the Velcro.

12. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 11, characterized in that: The connecting component also includes an insole cord, which is disposed at the front end of the insole and passes through a through hole to connect with the supporting upper; the insole cord is also connected to the shoelaces.

13. A modular shoe system based on a telescopic base shoe and replaceable sock liner according to claim 1, characterized in that: The sock is made of a flexible textile material and also includes a waterproof layer and a patterned layer, the patterned layer being located on the second upper of the sock.

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