Shoe with vamp easy to bend

Abstract

The utility model discloses a shoe with a vamp easy to bend, which comprises a sole and the vamp fixed on the upper portion of the sole, and the vamp comprises a body area and an easy-to-bend area which are arranged at intervals along the front-back direction. The easy-to-bend area comprises an easy-to-bend part and a traction part which are sequentially arranged in the vertical direction; compared with the body areas, the easy-to-bend areas are easier to deform and bend, and when the vamps are bent along the easy-to-bend areas, the traction parts provide traction force in the front-back direction so as to pull the adjacent body areas to the traction parts. The shoe at least has the advantages that no gap exists between the adjacent body area and the easy-to-bend area, the vamp is continuous, enough contact and stress area of the foot is guaranteed, and the wearing comfort is improved; due to the arrangement of the traction part, the body area can keep the original outline and does not collapse downwards, the attractiveness of the outline of the vamp is guaranteed, the gap between the foot and the body area is guaranteed, compression on the foot is avoided, the air permeability between the foot and the vamp is guaranteed, and the wearing comfort and the following performance of the shoe are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shoe technical field especially relates to a shoe with easy-to-bend vamp. BACKGROUND

[0002] Shoes are worn on feet, and feet contact and rub against the ground through shoes. Feet have the following physiological characteristics: toes are located in front of insteps, and bending can occur upward (opening upward after bending) at the connection between toes and insteps when feet move. Therefore, in order to adapt to the physiological characteristics, existing shoes are provided with easy-to-bend structures at the connection between toes and insteps, such as the hollow part between two adjacent straps disclosed by CN221690220U, the leather surface disclosed by CN220458706U, and the anti-wrinkle mechanism disclosed by CN218418610U.

[0003] The easy-to-bend structure is realized by the hollow part disclosed by CN221690220U. Since the hollow part is formed by two adjacent parts (straps) constituting the vamp, the stiffness of the two adjacent parts is insufficient due to the lack of pulling force of connecting members in the length direction, and the ability to maintain its own shape cannot be provided. In addition, the contact area between the vamp and the feet is greatly reduced due to the presence of the hollow part, the local force of the feet is increased, and the comfort of wearing is reduced.

[0004] The easy-to-bend structure (leather surface, anti-wrinkle mechanism) of the leather surface disclosed by CN220458706U and the anti-wrinkle mechanism disclosed by CN218418610U can ensure the contact area with the feet. However, the easy-to-bend structure still has the problems of insufficient pulling force in the front-rear direction, insufficient stiffness, and inability to maintain its own shape. The vamp can only be maintained in shape by the support of the feet, which not only affects the appearance of the vamp profile but also makes the wearer uncomfortable (the feet are uncomfortable under the pressure of the vamp, and the air permeability is affected because the pores between the feet and the vamp are almost completely compressed).

[0005] Therefore, in order to solve the above problems, the utility model provides a shoe with an easy-to-bend vamp. SUMMARY

[0006] In order to balance the comfort of wearing and the ability of the vamp to maintain its original profile during movement, the present application provides a shoe with an easy-to-bend vamp.

[0007] According to some embodiments, the present application provides a shoe with an easy-to-bend vamp, comprising:

[0008] a sole; and

[0009] a vamp fixed to the upper part of the sole, the vamp comprising a body area and an easy-to-bend area arranged in the front-rear direction, wherein:

[0010] The easy-bending region comprises an easy-bending part and a pulling part arranged in sequence along the up-down direction.

[0011] The rigidity of the easy-bending part is less than the rigidity of the body region.

[0012] When the vamp is bent along the easy-bending region, the pulling part provides a pulling force in the front-back direction to pull the adjacent body region towards the pulling part.

[0013] Preferably, the body region is N+1, and the easy-bending region is N, and one easy-bending region is arranged between any two adjacent body regions.

[0014] Preferably, the inner surface of the pulling part and the inner surface of the body region are smoothly connected.

[0015] Preferably, the easy-bending part is a hollow groove.

[0016] Preferably, the pulling part is provided with air holes penetrating up and down.

[0017] Preferably, the rigidity of the easy-bending part is less than the rigidity of the body region by at least one of the following ways:

[0018] The cross-sectional area of the entity support of the pulling part is less than the cross-sectional area of the entity support of the body region.

[0019] The elastic modulus of the material of the entity support of the pulling part is less than the elastic modulus of the material of the entity support of the body region.

[0020] Preferably, the body region is made of an elastic body with lattice structure made of light-cured resin by 3D printing.

[0021] Preferably, the pulling part is made of an elastic body with entity structure made of light-cured resin by 3D printing.

[0022] Preferably, the sole is made of an elastic body with lattice structure made of light-cured resin by 3D printing.

[0023] Preferably, the exposed edge of the body region is provided with an edge covering.

[0024] The beneficial effects of the embodiments of the utility model at least include:

[0025] 1. The vamp is composed of body regions and easy-bending regions arranged at intervals, there is no gap between adjacent body regions and easy-bending regions, the vamp is continuous, the contact and stress area of the foot is guaranteed, and the wearing comfort is improved.

[0026] 2. When the shoe upper is bent along the bendable area, the pulling portion provides a pulling force in the front-to-back direction to pull the adjacent body area toward the pulling portion, so that the body area can maintain the original contour of the shoe upper (the original design contour, such as the design that takes into account the shape of the user's foot and takes into account aesthetics) and does not collapse downward, thereby ensuring the aesthetic appearance of the shoe upper contour, maintaining a gap between the foot and the body area, avoiding pressure on the foot, and ensuring air permeability between the foot and the shoe upper, further improving wearing comfort;

[0027] 3. The upper can be easily bent along the bending area to ensure good followability when the shoe is worn (the fit between the sole, upper and foot during exercise). BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a shoe with an easily bendable upper from a first perspective according to an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the longitudinal section of the shoe (a two-dimensional plane formed by the front and back and vertical directions) where the upper is easily bent.

[0031] In the picture:

[0032] 1. Sole; 11. Sole edging;

[0033] 2. Upper; 21. Body area; 22. Bendable area; 221. Bendable portion; 222. Pull-on portion; 223. Ventilation holes; 23. Opening; 24. Front hemming; 25. Back hemming; DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] In the description of the present application, it is to be understood by those skilled in the art that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0036] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The utility model embodiment discloses a kind of shoes with upper easy to bend, referring to Figure 1 And Figure 2 It includes sole and the upper fixed on the upper portion of sole, and the upper includes the body area and the easy-to-bend area arranged along the front-back direction. The upper is composed of the body area and the easy-to-bend area arranged at intervals, there is no gap between adjacent body area and easy-to-bend area, the upper is continuous, to ensure sufficient contact, stress area of foot, improve wearing comfort.

[0038] The easy-to-bend area includes easy-to-bend part and pulling part arranged in sequence along the up-down direction; since the stiffness of easy-to-bend part is less than the stiffness of body area, compared with body area, easy-to-bend area is more easily deformed and bent, when user moves (such as walking, running, etc.), the upper is bent upwards along the easy-to-bend part, when the upper is bent along the easy-to-bend area (easy-to-bend part), the pulling part provides pulling force in front-back direction to pull adjacent body area to the pulling part. So that the body area can maintain the original profile, and not collapse downward, to ensure the aesthetic appearance of the upper profile, ensure the gap between foot and body area, avoid the oppression to foot, ensure the air permeability between foot and upper, further improve wearing comfort.

[0039] The body area and the easy-to-bend area are arranged at intervals, and there is no gap between the body area and the easy-to-bend area, the body area is N+1, the easy-to-bend area is N, one easy-to-bend area is arranged between any two adjacent body areas. N is a positive integer, and ≥1, Figure 1 And Figure 2 N=2 is shown in the figure, that is, the body area is 3, and the easy-to-bend area is 2,Figure 2 The dashed lines L1, L2, L3, L4, L5 and L6 shown define the five regions. Of course, the number of body regions can also be other numbers, which are not listed one by one.

[0040] In addition, the inner surface of the pulling part and the inner surface of the body region are smoothly transitioned. Further improve the wearing comfort.

[0041] One structure of the easy-bending part is a hollow groove, which reduces the cross-sectional area of the solid part of the easy-bending region (compared to the body region), thereby obtaining smaller rigidity than the body region.

[0042] An embodiment of the pulling part is provided with an air-permeable hole penetrating up and down. Through the air-permeable hole, the air permeability between the vamp and the foot is further increased, and the wearing comfort is improved.

[0043] In order to make the vamp bend along the easy-bending part and basically not bend along the body region, the rigidity of the two should have the following relationship: the rigidity of the easy-bending part < the rigidity of the body region, which is realized by at least one of the following:

[0044] The cross-sectional area of the solid support of the pulling part < the cross-sectional area of the solid support of the body region, such as Figure 1 And Figure 2 The hollow groove shown in the embodiment;

[0045] The elastic modulus of the material of the solid support of the pulling part < the elastic modulus of the material of the solid support of the body region, that is, different elastic modulus materials are used for the pulling part and the body region, such as through the accumulated exposure of 3D printing to realize that the same photocurable resin has different elastic modulus after curing.

[0046] The body region and / or the sole are made of a lattice-structured elastomer made of photocurable resin through 3D printing. It has elasticity, air permeability, and can realize continuous 3D printing (lattice structure allows photocurable resin with higher viscosity to flow quickly to fill the gap between lattices). The pulling part is made of a solid structure elastomer made of photocurable resin through 3D printing.

[0047] The 3D printing process can use a DLP type 3D printing process. The elastomer can be selected from the 3D printing shock-absorbing member disclosed in CN218971713U, the elastic element disclosed in CN219182950U, the cushioning and shock-absorbing member disclosed in CN212414939U, the pressure-resistant and air-permeable cushioning member disclosed in CN212737077U, etc.

[0048] Finally, the exposed edge of the body area (especially the position in contact with the foot) is provided with a solid structure (not hollow) of the edge, such as the front edge at the opening of the front of the instep (for the toes to extend out), the rear edge at the opening of the rear of the instep, to form a smooth transition, further improve the wearing comfort. Similarly, the upper surface of the sole can also be provided with a sole edge. The shoe can be a slipper, or it can be a non-slipper (such as sports shoes, casual shoes, running shoes, etc.), Figure 1 and Figure 2 The case is shown as a slipper.

[0049] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A shoe with a flexible upper, characterized in that, Comprise: a sole; and an upper fixed to an upper portion of the sole, the upper comprising body zones and a bendable zone arranged in series in the front-rear direction, wherein: the bendable zone comprises a bendable part and a pulling part arranged in series in the up-down direction; the rigidity of the bendable part < the rigidity of the body zones; when the upper is bent along the bendable zone, the pulling part provides a front-rear direction pulling force to pull adjacent body zones to the pulling part.

2. The pliable footwear of claim 1, wherein, The body zones are N+1, and the bendable zones are N, and one bendable zone is arranged between any two adjacent body zones.

3. The pliable footwear of claim 1, wherein, The inner surface of the pulling part and the inner surface of the body zone are smoothly connected.

4. The pliable footwear of claim 1, wherein, The bendable part is a hollow groove.

5. The pliable footwear of claim 4, wherein, The pulling part is provided with a through hole in the up-down direction.

6. The pliable footwear of claim 4, wherein, The rigidity of the bendable part < the rigidity of the body zone is realized by at least one of the following ways: The cross-sectional area of the solid support of the pulling part < the cross-sectional area of the solid support of the body zone; The elastic modulus of the material of the solid support of the pulling part < the elastic modulus of the material of the solid support of the body zone.

7. The pliable footwear of claim 6, wherein, The body zone is made of an elastic body with a lattice structure made of light-cured resin by 3D printing.

8. The pliable footwear of claim 6, wherein, The pulling part is made of an elastic body with a solid structure made of light-cured resin by 3D printing.

9. The pliable footwear of claim 6, wherein, The sole is made of an elastic body with a lattice structure made of light-cured resin by 3D printing.

10. The pliable footwear of claim 6, wherein, The exposed edge of the body zone is provided with a hem.

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