shoe body
By using an adhesive-free connection method, the overlay is fixed to the sole component using connectors and flexible fasteners, which solves the problems of insufficient environmental protection and stability of traditional shoe bodies and provides a comfortable and detachable shoe body design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AMPLIFI TECH (XIAMEN) LTD
- Filing Date
- 2023-05-09
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional shoe uppers use adhesives for bonding, which presents environmental problems and issues such as instability and insufficient comfort due to the lack of flexibility in mechanical fasteners.
The design employs an adhesive-free approach, utilizing first and second connectors and flexible fasteners to secure the overlay to the bottom component, forming a stable shoe structure.
It achieves an environmentally friendly bonding method while ensuring the stability of the bonding and the comfort of wearing it. Consumers can assemble or disassemble it themselves to adapt to different styles and needs.
Smart Images

Figure CN116268698B_ABST
Abstract
Description
Technical Field
[0001] This application relates to a shoe body, and more specifically, to a shoe body that does not require adhesive bonding. Background Technology
[0002] Traditional shoe construction primarily relies on adhesives to join multiple components. However, the adhesive manufacturing process generates significant amounts of volatile organic compounds (VOCs), impacting worker health and being environmentally unfriendly. Therefore, there is a need to find a green and environmentally friendly method for joining shoe components.
[0003] US Patent US10092063 discloses a method for connecting the upper and sole of a shoe with mechanical fasteners. Although mechanical fasteners can provide a secure connection, they lack elasticity and may come undone due to impact or deformation at the joint between the upper and sole during consumer activity.
[0004] Chinese patent application CN203314215U discloses a method in which connecting holes are provided one-to-one on the edges of the upper and sole, and a thin strip of fabric is passed through the connecting holes located on the upper and sole respectively to connect the upper and sole. However, the gaps in the area covered by the thin strip of fabric at the junction of the upper and sole may be open, exposing the consumer's foot and resulting in insufficient foot coverage; in addition, the connecting holes are located on the edges of the upper / sole, and after long-term wear, the area around the connecting holes may wear and crack, causing them to break off from the edges of the upper / sole and lose their connecting function. Summary of the Invention
[0005] In view of the aforementioned drawbacks of conventional shoe bodies, the present invention provides a shoe body that eliminates the need for adhesives.
[0006] To achieve the above and other objectives, the present invention provides a shoe body, comprising:
[0007] A bottom component, which at least constitutes the sole of the shoe body;
[0008] A plurality of first connectors are disposed on the upper periphery of the bottom component;
[0009] An overlay, made of a single sheet of flexible material, extends from the upper edge of the sole component toward the interior of the shoe body to form an extension, and the overlay also extends upward from the upper edge of the sole component to form an upper, wherein the extension is at least partially located on the upper surface of the sole component.
[0010] A plurality of second connectors are disposed on the cover near the upper periphery of the bottom component; and
[0011] A flexible fastener connects the first connectors and the second connectors to secure the cover to the base member.
[0012] The aforementioned shoe body, wherein the first connecting member may be a plurality of rings or holes.
[0013] The aforementioned shoe body, wherein the second connector may be a plurality of holes.
[0014] The aforementioned shoe body, wherein the extension may have a plurality of cuts.
[0015] The aforementioned shoe body, wherein the extension may extend 5mm to 25mm from the upper edge of the adjacent sole component toward the interior of the shoe body.
[0016] The aforementioned shoe body, wherein the first connecting member can be integrally formed with the bottom component.
[0017] The aforementioned shoe body, wherein the sole component may be an elastomer formed by 3D printing, injection molding, injection molding, foaming or compression molding.
[0018] The aforementioned shoe body, wherein the sole component can constitute the sole and the front edge covering of the shoe body.
[0019] The aforementioned shoe body, wherein the covering can be made of a textile material or a material made by 3D printing.
[0020] The aforementioned shoe body, wherein the flexible fastener can be a single wire.
[0021] The aforementioned shoe body, wherein the flexible fastener may span the shoe upper.
[0022] The shoe body joining method provided by this invention does not require the use of adhesives, thus avoiding the generation of large amounts of volatile organic compounds, making it environmentally friendly and protecting the health of workers. Furthermore, the joining method of this invention simultaneously ensures the stability of the joint and the comfort of wearing the shoe. Attached Figure Description
[0023] For ease of description, the thickness or dimensions of each layer in the diagram are enlarged, omitted, or depicted in summary. Also, the dimensions of each component do not fully reflect its actual size.
[0024] [ Figure 1 [This is a schematic diagram of the shoe body provided in Embodiment 1 of the present invention;]
[0025] [ Figure 2 [This is a schematic diagram of the shoe midsole component provided in Embodiment 1 of the present invention;]
[0026] [ Figure 3 [This is a schematic diagram of the covering component in the shoe body provided in Embodiment 1 of the present invention;]
[0027] [ Figure 4[This is a schematic diagram of the shoe body provided in Embodiment 2 of the present invention;]
[0028] [ Figure 5 [This is a schematic diagram of the heel of the shoe body provided in Embodiment 2 of the present invention;]
[0029] [ Figure 6 [This is an exploded view of the shoe body provided in Embodiment 3 of the present invention; and]
[0030] [ Figure 7 [This is a schematic diagram of the shoe body provided in Embodiment 3 of the present invention.]
[0031] Figure Labels
[0032] 10. Shoe body
[0033] 11 Bottom Components
[0034] 12 First Connector
[0035] 13 Covering components
[0036] 131 Extension
[0037] 132 Shoe Upper
[0038] 14 Second connector
[0039] 15 Flexible Fasteners
[0040] 20 Shoe body
[0041] 21 Bottom Components
[0042] 22 First connector
[0043] 23 Covering components
[0044] 231 Extension
[0045] 232 Shoe Upper
[0046] 233 Incision
[0047] 24 Second connector
[0048] 25 Flexible Fasteners
[0049] 26 Third connector
[0050] 30 Shoe Body
[0051] 31 Bottom Components
[0052] 311 Leading edge covering part
[0053] 32 First connector
[0054] 33 Covering components
[0055] 331 Extension
[0056] 332 upper
[0057] 34 Second connector
[0058] 35 Flexible Fasteners Detailed Implementation
[0059] Example 1
[0060] Please refer to Figures 1 to 3 ,in, Figure 1 This is a schematic diagram of the shoe body 10 provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the midsole component 11 of the shoe body 10 provided in Embodiment 1 of the present invention; and Figure 3 This is a schematic diagram of the covering component 13 in the shoe body 10 provided in Embodiment 1 of the present invention. Figures 1 to 3 As shown, the shoe body 10 of Embodiment 1 includes: a sole component 11, a plurality of first connectors 12, a cover component 13, a plurality of second connectors 14, and a flexible fastener 15.
[0061] In this embodiment, the bottom component 11 constitutes the sole of the shoe body 10. However, the present invention is not limited to this. In another embodiment, the bottom component 11 may further constitute the part of the shoe body 10 other than the sole. For example, in the following embodiment 3, the bottom component 11 may further constitute the sole and the front edge covering part of the shoe body 10.
[0062] In this embodiment, a plurality of first connectors 12 are disposed on the upper periphery of the bottom component 11. In the shoe body 10 of Embodiment 1, the first connectors 12 are a plurality of rings, but the present invention is not limited thereto. In another embodiment, the plurality of first connectors 12 may also be holes or other structures that can be connected.
[0063] In this embodiment, the covering 13 is made of a single piece of flexible material. The covering 13 extends from the upper edge of the footpiece 11 toward the interior of the shoe body 10 to form an extension 131. The covering 13 also extends upward from the upper edge of the footpiece 11 to form an upper 132. The extension 131 is located on the upper surface of the footpiece 11.
[0064] In this embodiment, the extension 131 is located on the upper surface of the bottom component 11. However, the present invention is not limited to this. In another embodiment, the extension 131 may be located only partially on the upper surface of the bottom component 11.
[0065] In this embodiment, the shoe body 10 is a laceless design. The covering 13 does not include a tongue, slits, or holes for shoelaces to pass through at the instep area. However, the invention is not limited to this. In another embodiment, the covering 13 may also have well-known features such as a tongue, slits, and holes for shoelaces to pass through, allowing the shoe body 10 to be put on and taken off using shoelaces. Furthermore, in other embodiments, the covering 13 may also have other well-known devices for putting on and taking off the shoe body 10, such as Velcro, buckles, and zippers.
[0066] In this embodiment, a plurality of second connectors 14 are disposed on the upper edge of the cover 13 adjacent to the bottom component 11.
[0067] In this embodiment, the second connector 14 is a hole, but the present invention is not limited thereto. In another embodiment, the second connector 14 may be other structures that can be connected.
[0068] In this embodiment, the flexible fastener 15 connects the first connectors 12 and the second connectors 14 to fix the cover 13 to the bottom component 11.
[0069] In this embodiment, the flexible fastener 15 is a wire, but the present invention is not limited thereto. In another embodiment, the flexible fastener 15 may be a belt or other connectable structure.
[0070] In this embodiment, the flexible fastener 15 connects the first connectors 12 and the second connectors 14 to fix the cover 13 to the bottom component 11. This eliminates the need for adhesives in the joining of the shoe body 10, avoiding the generation of large amounts of volatile organic compounds, thus being environmentally friendly and protecting the health of workers.
[0071] In this embodiment, the covering 13 extends from the upper edge of the footplate 11 toward the interior of the shoe body 10 to form an extension 131, thereby improving the stability of the connection between the covering 13 and the footplate 11. In addition, the extension 131 also provides further coverage for the wearer's foot to enhance wearing comfort.
[0072] Example 2
[0073] Please refer to Figure 4 A schematic diagram of the shoe body 20 provided in Embodiment 2 of the present invention; and Figure 5 A schematic diagram of the heel of the shoe body 20 provided in Embodiment 2 of the present invention.
[0074] The shoe body 20 of this embodiment is similar to that of embodiment 1, including: a sole component 21, a plurality of first connectors 22, a cover component 23, a plurality of second connectors 24, and a flexible fastener 25. The cover component 23 extends from the upper edge of the sole component 21 toward the interior of the shoe body 20 to form an extension 231, and the cover component 23 also extends upward from the upper edge of the sole component 21 to form an upper 232. The extension 231 is located on the upper surface of the sole component 21.
[0075] The similarities between this embodiment and Embodiment 1 will not be repeated here.
[0076] Compared to Embodiment 1, the extension 231 in this embodiment has a plurality of cuts 233, thereby making the extension 231 more suitable for fitting the upper surface of the bottom component 21 and avoiding wrinkles.
[0077] Compared to Embodiment 1, the flexible fastener 25 in this embodiment also spans the upper 232, and the flexible fastener 25 crosses on the upper 232. Therefore, in addition to connecting the first connectors 22 and the second connectors 24, the flexible fastener 25 in this embodiment also has the effect of tightening the upper 232 to make the upper 232 fit the wearer's instep better and provide the desired visual effect.
[0078] like Figure 5 As shown by the dotted line, in this embodiment, the covering 23 overlaps at the heel of the shoe body 20. Figure 4 and 5 As shown, a plurality of third connectors 26 are disposed on the cover 23 located at the heel of the shoe body 20, and the third connectors 26 are disposed along both sides of the joint of the cover 23. Figure 4 and 5As shown, in this embodiment, the flexible fastener 25 repeatedly inserts into and exits the third connectors 26 at the heel of the shoe body 20, thereby physically connecting the two edges of the covering 23 at the heel of the shoe body 20 through the flexible fastener 25. In this embodiment, the third connectors 26 are a plurality of holes, but the invention is not limited thereto. The bonding method of this embodiment eliminates the need for adhesive at the heel of the shoe body 20, achieving a completely glue-free assembly. Furthermore, using the bonding method of this embodiment, it is also unnecessary to sew the covering 23 at the heel of the shoe body 20, simplifying the manufacturing process of the shoe body 20. In addition, the bonding method of this embodiment can be completed by the consumer, allowing the consumer to assemble or disassemble the shoe body 20 as needed. For example, the consumer can disassemble the shoe body 20 for travel or storage. In addition, consumers can also purchase cover parts 23, bottom parts 21 and flexible fasteners 25 in different colors or patterns, and decide how to match cover parts 23, bottom parts 21 and flexible fasteners 25 to suit their desired style.
[0079] In another embodiment, the two ends of the flexible fastener 25 can each pass through a snap fastener, wherein the snap fastener movably secures the flexible fastener 25. When the snap fastener is pressed, the flexible fastener 25 can be released, thereby adjusting the position of the flexible fastener 25 to adjust the tightness of the covering 23 covering the wearer's heel. When the snap fastener is stopped, the flexible fastener 25 can be secured, so that the covering 23 covers the wearer's heel with a stable tightness. In addition, the snap fastener can also retract the flexible fastener 25 to prevent the wearer from falling or other dangers due to the flexible fastener 25 falling off while walking.
[0080] Example 3
[0081] Please refer to Figure 6 and 7 ,in, Figure 6 This is an exploded view of the shoe body 30 provided in Embodiment 3 of the present invention; and Figure 7 This is a schematic diagram of the shoe body 30 provided in Embodiment 3 of the present invention.
[0082] The shoe body 30 of this embodiment is similar to that of embodiment 1, including: a sole component 31, a plurality of first connectors 32, a cover component 33, a plurality of second connectors 34, and a flexible fastener 35. The cover component 33 extends from the upper edge of the sole component 31 toward the interior of the shoe body 30 to form an extension 331, and the cover component 33 also extends upward from the upper edge of the sole component 31 to form an upper 332. The extension 331 is partially located on the upper surface of the sole component 31.
[0083] The similarities between this embodiment and Embodiment 1 will not be repeated here.
[0084] Compared to Embodiment 1, in this embodiment, the bottom component 31 not only forms the sole of the shoe body 30, but also constitutes the front edge covering portion 311 of the shoe body 30. This provides more coverage and protection for the front edge of the wearer's foot and also helps to further improve the stability of the shoe body 30's joint. Due to the provision of the front edge covering portion 311, the extension portion 331 in this embodiment is only partially located on the upper surface of the bottom component 31, with the remaining portion located inside the front edge covering portion 311.
[0085] Compared to Embodiment 1, the bottom component 31 of this embodiment can be worn independently as a slipper, or the bottom component 31 can be joined to the cover component 33 by means of a flexible fastener 35.
[0086] Compared to Embodiment 1, in this embodiment, the first connectors 32 and the second connectors 34 are multiple holes, and the first connectors 32 and the second connectors 34 can be connected by flexible fasteners 35 to fix the cover 33 to the bottom part 31.
[0087] In the shoe body of this invention, the materials and construction methods of each component are not particularly limited. Those skilled in the art can make appropriate adjustments based on well-known technical means. Further descriptions and examples of feasible embodiments are provided below, but this invention is not limited thereto.
[0088] In the shoe body of the present invention, the sole component can be an elastomer formed by 3D printing, injection molding, injection molding, foaming, or compression molding. The sole component can have different densities to provide different properties. For example, the density is lower near the center of the sole, thus providing wearing comfort, while the density is higher around the perimeter of the sole, thereby providing better mechanical strength. Furthermore, different parts of the sole structure can be made of different materials.
[0089] In the shoe body of the present invention, the first connecting members can be integrally formed with the sole component by 3D printing, giving it a certain mechanical strength. The first connecting members can have a height H, where H is 1 to 2 times the diameter of the flexible fastener. The first connecting members can also be formed by injection molding, injection molding, foaming, compression molding, or other methods.
[0090] In the shoe body of the present invention, the covering can be a textile material, a material formed by 3D printing, a textile of polymer filaments, genuine leather, suede, artificial leather, or thermoplastic polyurethane (TPU). The extension of the covering can extend from the upper edge of the sole component toward the interior of the shoe body by a range of 3mm-25mm, preferably 3-20mm, more preferably 5-15mm. If the covering material is a textile material, to avoid frayed edges, the edge of the extension can be finished, and the finishing method includes, but is not limited to, folding and sewing, sewing binding strips, laser cutting materials, etc.
[0091] In the shoe body of this invention, the flexible fastener can be a thread, textile, rope, polymer filament, twisted rope, braided rope, etc. Besides providing the function of connecting the sole component and the covering component, the flexible fastener can also provide the desired visual effect; for example, the flexible fastener can be a ribbon or a thick rope, thereby creating a contrasting visual impact. The end of the flexible fastener can be knotted or secured with a quick-release buckle. Furthermore, the elongation of the flexible fastener can be 0-100%, preferably 0-50%, more preferably 1-20%; the length of the flexible fastener is not limited, and can be 80cm-540cm, preferably 12cm-480cm, more preferably 160cm-300cm, its length being related to the shoe size and the number of times it is wrapped around the instep; and the diameter of the flexible fastener can be 2mm-25mm, preferably 3-15mm, more preferably 4-10mm. In addition, the flexible fastener has a certain tensile strength, which can be as low as 5kg-40kg, preferably 10kg-35kg, more preferably 20kg-30kg, and has no upper limit on the maximum strength. The required strength is related to the actual number of first connectors and second connectors connected together.
[0092] In the shoe body of this invention, the first connectors and the second connectors may not correspond one-to-one. Those skilled in the art can choose the desired joining method according to the required tightness, upper performance, and aesthetic effect. Furthermore, the first connectors may be unequally spaced from each other.
[0093] In the shoe body of the present invention, the first connecting members are disposed on the upper edge of the sole component and form a height H' in the direction perpendicular to the ground, so that the extension can bend towards the central area of the sole and converge within the space formed by the first connecting members, thereby further improving the stability of the connection between the sole component and the covering component. The height H' can be matched with the thickness of the insole. The sole component may also have a depth h from the lower edge of the first connecting members, and H' + h = the thickness of the insole + the thickness of the extension after convergence.
[0094] The shoe body of this invention can be modularly designed, allowing consumers to purchase separately overlays with different colors, patterns, breathability, and support; sole components with different anti-slip capabilities, shock absorption, and propulsion; and flexible fasteners with different extensibility, tensile strength, colors, and shapes, which can be combined arbitrarily according to their own needs. Consumers can select / replace overlays, sole components, and flexible fasteners according to their desired aesthetic or functional requirements. When any component (overlay, sole component, or flexible fastener) wears out, it can be replaced individually without discarding the entire shoe.
[0095] The shoe upper covering of this invention can be assembled into a three-dimensional upper structure that accommodates the foot using flexible fasteners after the flat surface is manufactured. Consumers can assemble the flat covering into a three-dimensional upper structure that accommodates the foot using the flexible fasteners. Before assembly, the covering is flat, making it easy to carry, transport, and store, thus saving on industrial logistics costs and facilitating consumer travel or home storage.
[0096] The shoe body of this invention can also be used with an insole. In this case, the insole and the sole can be used to clamp the extension to further increase the stability of wearing the shoe. The insole can be made of ethylene / vinyl acetate copolymer (EVA), silicone, foam, or polyurethane (PU) combined with fabric (which can be textile material or leather).
Claims
1. A shoe body characterized by, include: A bottom component, at least constituting the sole of the shoe body; A plurality of first connectors are integrally formed with the bottom component on the upper periphery of the bottom component by 3D printing, and the plurality of first connectors have a height H on the upper periphery of the bottom component; An overlay, made of a single sheet of flexible material, extends from the upper edge of the sole component toward the interior of the shoe body to form an extension, and the overlay also extends upward from the upper edge of the sole component to form an upper, wherein the extension is at least partially located on the upper surface of the sole component, and the extension extends toward the interior of the shoe body by a range of 3mm to 25mm. A plurality of second connectors are disposed on the cover near the upper periphery of the bottom component; A plurality of third connectors are disposed on a cover located at the heel of the shoe body, and the plurality of third connectors are disposed on both sides of the joint of the cover; A flexible fastener is used to connect the plurality of first connectors and the plurality of second connectors, and repeatedly inserts into and exits the plurality of third connectors at the heel of the shoe body, thereby physically connecting the two edges of the cover at the heel of the shoe body via the flexible fastener. The cover is fixed to the sole component, and the flexible fastener spans the upper. The height H of the first connector is 1 to 2 times the diameter of the flexible fastener. An insole is located on the bottom component and within the area surrounded by the cover, and the insole and the bottom component clamp the extension.
2. The shoe body of claim 1, wherein, The plurality of first connectors are a plurality of rings or holes.
3. The shoe body of claim 1, wherein, The plurality of second connectors are a plurality of holes.
4. The shoe body of claim 1, wherein, The extension has multiple cuts.
5. The shoe body of claim 1, wherein, The extension extends 5mm to 25mm from the upper edge of the adjacent bottom component toward the inside of the shoe body.
6. The shoe body of claim 1, wherein, The covering is made of a textile material or a material manufactured by 3D printing.