Warm-keeping vamp and shoe

Abstract

The utility model discloses a warm-keeping vamp and a shoe. The vamp comprises a base, an outer covering material and filler, wherein the shape of the base is consistent with that of the outer covering material, and the size of the outer covering material is larger than that of the base in a flattened state; the edges of the substrate and the outer coating material are overlapped and connected to form a joint edge, and the outer coating material and the substrate form a plurality of overlapping edges in other areas except the edges for overlapping and connecting the substrate and the outer coating material; each overlapped edge extends along a preset direction and is in a long strip shape; the outer coating material protrudes upwards between the adjacent overlapped edges and between the adjacent overlapped edges and the joint edges, and is matched with the substrate to form an accommodating cavity; the containing cavity is filled with filler used for keeping warm. On the premise of keeping a good warm-keeping effect, the warm-keeping vamp is lighter and thinner in structure, good in elasticity and good in comfort.

Description

Technical Field

[0001] This utility model relates to the field of shoe upper technology, specifically to a warm shoe upper and shoe. Background Technology

[0002] As a crucial component of footwear, the upper not only protects the feet but also directly impacts comfort and aesthetics. In cold seasons, warmth becomes a key performance indicator for uppers. To meet consumer demand for warm winter shoes, various warm upper structures have emerged on the market. Commonly, uppers are made from insulating materials such as leather, fur, polyester, or polyamide fibers. However, these single-material uppers suffer from high cost and poor breathability. Current technology has also explored composite upper structures with insulating properties, typically consisting of a leather layer, a midsole, and an lining. The midsole can be made of insulating materials, and the three layers are bonded or sewn together, providing good warmth. However, this type of warm upper is relatively thick and heavy, resulting in a lack of elasticity and poor overall comfort. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a warm shoe upper and shoe. This warm shoe upper, while maintaining good warmth retention, has a thinner and lighter structure, good elasticity, and excellent comfort.

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

[0005] Technical Solution 1: A thermal insulated shoe upper, comprising a base, an outer covering, and a filling material: the base and the outer covering have the same shape, and in a flattened state, the size of the outer covering is larger than the size of the base; the edges of the base and the outer covering overlap and connect to form a joint edge, and the outer covering and the base form multiple overlapping edges connecting them in areas other than the edges; each overlapping edge extends along a predetermined direction and is elongated; the outer covering bulges upward between adjacent overlapping edges, and between adjacent overlapping edges and joint edges, and cooperates with the base to form a receiving cavity; the receiving cavity is filled with the filling material for thermal insulation.

[0006] Technical Solution 2 based on Technical Solution 1: The shoe upper forms a toe and a body corresponding to the toe position and the position behind the toes, respectively. The body forms an inner extension and an outer extension corresponding to the inner and outer sides of the foot, respectively. The inner and outer extensions are broken at the middle position in the left-right direction and connected at the toe. There are multiple overlapping edges located at the toe, which are called first overlapping edges. These first overlapping edges extend in the left-right direction, and their two ends are connected to the joint edges on the left and right sides, respectively.

[0007] Technical Solution 3 based on Technical Solution 2: There are multiple overlapping edges located on the shoe body as second overlapping edges. These second overlapping edges start from the joint edge at the rear end of the inner extension and extend toward the toe of the shoe, then bypass the toe of the shoe and extend toward the rear end of the outer extension and connect to the joint edge at the rear end.

[0008] Technical Solution 4 based on Technical Solution 3: The distances between each of the first overlapping edges, between each of the second overlapping edges, and between adjacent first overlapping edges and second overlapping edges are equal.

[0009] Technical Solution 5 based on Technical Solution 4: The first overlapping edge is located in front of the second overlapping edge, and each of the first overlapping edges includes, from left to right, a first extension segment, a second extension segment, a third extension segment, a fourth extension segment, and a fifth extension segment that are smoothly connected; the first extension segment extends from left to right, the second extension segment extends from left to right from back to front at an angle, the third extension segment extends from left to right, the fourth extension segment extends from left to right from front to back at an angle, and the fifth extension segment extends from left to right.

[0010] Technical Solution Six based on Technical Solution Five: Each of the second overlapping sides includes, from left to right, a smoothly transitioning sixth extension segment, a seventh extension segment, an eighth extension segment, a ninth extension segment, a tenth extension segment, an eleventh extension segment, and a twelfth extension segment; the sixth extension segment extends obliquely from back to front, the seventh extension segment extends obliquely from left to right from back to front, the eighth extension segment extends from back to front, the ninth extension segment extends from left to right and is in a forward-protruding bent shape to bypass the toe of the shoe, the tenth extension segment extends from front to back, the eleventh extension segment extends obliquely from left to right from front to back, and the twelfth extension segment extends from front to back.

[0011] Technical solution seven based on technical solution one: The joining edge and overlapping edge are connected by stitching to overlap the base and the outer covering material.

[0012] Technical solution eight based on technical solution one: The substrate includes a comfort layer and a base layer that are bonded to each other; the comfort layer is close to the foot and is made of a plush fabric, and the base layer is close to the outer covering and is made of foam material with a preset thickness.

[0013] Technical Solution Nine based on Technical Solution One: The outer covering material is made of breathable fabric, and the filling material is made of a thermal insulation material suitable for forming still air inside.

[0014] In addition, this utility model also provides technical solution ten: a shoe, which includes a sole, said sole being composited with a warm upper as described in any one of technical solutions one to nine.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0016] Technical Solution 1 provides a thermal upper that achieves an effective combination of lightness, elasticity, and warmth through a unique structural design of the base and outer covering, as well as a rational configuration of the filling. Its core technical feature lies in the overlapping and connection of the base and outer covering edges to form a joint edge. In other areas, multiple elongated overlapping edges connect the two layers, causing the outer covering to bulge upwards between adjacent overlapping and joint edges, forming multiple cavities with the base. These cavities are filled with thermal insulation material. The filling material within these cavities effectively blocks heat transfer between external cold air and the foot, while reducing heat convection and conduction, forming a relatively stable insulation layer and significantly improving the upper's warmth. Furthermore, because the outer covering is larger than the base and bulges between the overlapping edges, this structure can deform under stress. Combined with the distribution of elongated overlapping edges, this enhances the overall elasticity of the upper, allowing it to better conform to the shape of the foot during wear and providing superior comfort. More importantly, the cavity formed by the bulge of the outer material is not simply used to hold the filling material. Instead, while providing good deformation capability to the shoe upper, the cavity can hold more still air. Because of the outer material and the base, the air in the cavity is less likely to escape and can be better retained by the filling material. In other words, the combination of the cavity and the filling material further improves the warmth retention of the shoe upper.

[0017] Therefore, the thermal upper provided by this technical solution utilizes the cavities formed by the raised outer layer relative to the base to accommodate the filling material, and adjacent cavities are separated by overlapping edges. This results in multiple relatively independent cavities spaced apart on the upper. The overlapping edges allow the upper to deform more easily. The cavities provide insulation by accommodating the filling material, and the hollow structure formed by the cavities themselves also contributes to insulation. Compared to conventional composite layer thermal uppers, the thermal upper provided by this technical solution further improves the insulation effect while being thinner and lighter, with better deformation capabilities and greater comfort. Furthermore, it reduces material usage and overall weight, lowers manufacturing costs, and improves wearing comfort.

[0018] Technical Solution Two, building upon Technical Solution One, further optimizes the structural layout of the upper in the toe and body sections. This is achieved by incorporating a first overlapping section extending laterally in the toe, with both ends connected to the joint edge, while simultaneously forming medial and lateral extensions in the body. This design better adapts to the shape and movement characteristics of different areas of the foot. As the toe area experiences frequent foot movement, the lateral extension of the first overlapping section provides sufficient deformation space when the toes flex or extend, reducing pressure on the toes and improving wearing comfort. Simultaneously, the medial and lateral extensions in the body effectively wrap around the arch area, providing necessary support. Combined with the design that separates the left and right sides and connects at the toe, this further enhances the overall structural stability of the upper. Therefore, this regionalized structural design allows the upper to balance warmth and elasticity in different areas, avoiding localized tightness or looseness, thus optimizing the overall wearing experience.

[0019] Building upon Technical Solution Two, Technical Solution Three further refines the extension path of the second overlapping section of the shoe body. Starting from the rear end joint edge of the inner extension section, it extends towards the toe, bypasses the toe, and connects to the rear end joint edge of the outer extension section. This design creates a continuous support structure in the shoe body that conforms to the foot's curve, effectively dispersing pressure generated during foot movement and reducing fatigue or wear caused by excessive local deformation of the upper. Simultaneously, the design of the second overlapping section bypassing the toe avoids direct interference with the toe area. Combined with its continuous extension path, it forms a stable, "wrap-around" frame in the shoe body, further enhancing the upper's wrapping and support in the arch area, thereby improving stability and comfort. Furthermore, this path design ensures the even distribution of the cavities in the shoe body, forming a stable insulating layer in the arch area to maintain foot temperature and enhance overall warmth.

[0020] Technical Solution Four, building upon Technical Solution Three, clarifies that the distances between the first overlapping portion, the second overlapping portion, and adjacent first and second overlapping portions are approximately equal. This uniform spacing design ensures that the elasticity and deformation capacity of the upper are consistent across all areas, avoiding uneven stress or excessive deformation caused by localized spacing differences, thereby improving the overall structural stability and durability of the upper. Simultaneously, the uniform spacing also makes the distribution of the cavities more regular, allowing the filling material to form a uniform insulation layer across all areas of the upper, further reducing uneven heat loss and significantly improving the uniformity of the insulation effect. Furthermore, this design helps simplify the manufacturing process, reducing the processing difficulties caused by inconsistent spacing during production and ensuring consistent product quality.

[0021] Building upon Technical Solution Four, Solution Five features a multi-segment extension design for the first overlapping section of the toe box. This design includes smoothly transitioning first to fifth extension segments, each with different extension directions and angles. This multi-segment design better accommodates the multi-directional deformation needs of the toes during movement. By varying the direction of each extension segment, it disperses the pressure generated when the toes bend or extend, avoiding localized stress concentration caused by unidirectional extension, thus significantly improving comfort and flexibility in the toe area. Simultaneously, the smooth transition of the multi-segment design avoids stress concentration points, enhancing the durability of the upper structure. Furthermore, this design ensures a reasonable distribution of the cavities in the toe box, forming an effective insulation layer in areas with frequent toe movement, reducing heat loss and keeping the toe area warm.

[0022] Building upon Technical Solution Five, Technical Solution Six employs a more complex multi-segment extension design for the second overlapping section of the shoe body. This includes six to twelfth extension segments, each exhibiting different inclination angles and bending shapes. Particularly noteworthy is the ninth extension segment, which bulges forward as it wraps around the toe. This multi-segment design precisely conforms to the complex curvature of the arch area, effectively dispersing multi-directional pressure during foot movement through directional adjustments in each extension segment. This provides stronger support and a more secure fit, enhancing stability and comfort. Simultaneously, the bending design around the toe avoids interference with toe movement, further optimizing the functionality of the upper. Furthermore, the multi-segment extension design ensures a uniform distribution of the cavity within the shoe body, forming a continuous insulating layer in the arch and surrounding areas. This effectively blocks cold air intrusion, enhancing overall warmth.

[0023] Technical Solution Seven, building upon Technical Solution One, explicitly employs a stitching method to connect the joint edges and overlapping portions of the base and outer covering. Compared to other connection methods (such as adhesive bonding), stitching offers higher connection strength and durability, effectively resisting tensile and bending forces during long-term use of the upper, preventing cracking or detachment at the joint, thus significantly improving the overall structural stability and lifespan of the upper. Furthermore, stitching ensures a tight fit between the overlapping portions and joint edges, reducing the possibility of cold air penetration through gaps and further enhancing the upper's warmth. Simultaneously, the stitching process is relatively simple and cost-effective, helping to reduce production costs while maintaining performance.

[0024] Technical Solution Eight, building upon Technical Solution One, optimizes the base structure, designing it as a composite structure comprising a comfort layer and a base layer. The comfort layer uses a fleece-like fabric close to the foot, while the base layer uses foam material of a predetermined thickness near the outer covering. The fleece-like fabric, with its soft and dense surface structure, reduces friction with the foot, enhancing tactile comfort. Its microporous structure also absorbs moisture to some extent, keeping the feet dry. The foam material, due to its porous nature and low thermal conductivity, effectively blocks heat transfer between external cold air and the foot, forming a preliminary insulation layer. Furthermore, the elasticity and cushioning properties of the foam material absorb the impact generated during foot movement, reducing foot fatigue and further enhancing comfort and protection.

[0025] Technical Solution Nine, building upon Technical Solution One, optimizes the materials for the outer covering and filling. The outer covering uses a breathable fabric, while the filling utilizes an insulating material suitable for creating still air. By forming a still air layer within the cavity, the filling significantly reduces heat convection and conduction, effectively blocking heat exchange between external cold air and the foot, thus providing excellent warmth. Simultaneously, the breathable fabric of the outer covering allows moisture to escape to some extent, reducing stuffiness and dampness caused by prolonged enclosed space, optimizing the microenvironment inside the shoe upper, and enhancing wearing comfort. This material combination ensures both warmth and breathability, offering a lighter and more comfortable wearing experience compared to traditional single insulating materials or heavy composite materials.

[0026] Technical Solution Ten combines the thermal upper and sole as described in any one of Technical Solutions One through Nine to form a complete footwear product. The upper, through its lightweight, elastic structure and optimized thermal design, provides balanced support and comfort during wear, while effectively blocking cold air and keeping feet warm. This footwear product meets consumers' dual needs for warmth and comfort in cold environments, and compared to traditional thermal shoes, it is lighter and fits the foot better, significantly improving the wearing experience and practicality. Attached Figure Description

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

[0028] Figure 1 This is a top view of a flattened version of a thermal shoe upper according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of section AA;

[0030] Figure 3 This is a three-dimensional schematic diagram of a shoe according to an embodiment of the present utility model.

[0031] Explanation of key figure labels:

[0032] Base layer 10; Comfort layer 11; Base layer 12;

[0033] Outer covering material 20; Receiving cavity 21;

[0034] Filler 30;

[0035] 40mm joint edge;

[0036] First overlapping edge 50; First extension segment 51; Second extension segment 52; Third extension segment 53; Fourth extension segment 54; Fifth extension segment 55;

[0037] Second overlapping edge 60; Sixth extension segment 61; Seventh extension segment 62; Eighth extension segment 63; Ninth extension segment 64; Tenth extension segment 65; Eleventh extension segment 66; Twelfth extension segment 67;

[0038] 71. Toe section; 72. Body section; 73. Inner extension; 74. Outer extension; 75. Tongue opening;

[0039] Upper: 81; Sole: 82. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0042] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does 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, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0043] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0044] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0045] Example 1

[0046] Embodiment 1 of this utility model relates to a warm shoe upper, which can be used in conjunction with the sole 82 to form a shoe.

[0047] Reference Figure 1 and Figure 2 The upper 81 includes a base 10, an outer covering 20, and a filling material 30. Figure 1 This is a top view of the shoe upper 81 in its flattened state. After the shoe upper 81 is bonded to the sole 82, the shoe upper 81 will be bent and cooperate with the sole 82 to define a shoe cavity that accommodates the user's foot.

[0048] The base 10 and the outer covering 20 have the same shape, and the size of the outer covering 20 is larger than that of the base 10 when flattened. The edges of the base 10 and the outer covering 20 overlap and connect to form a joint edge 40, and the outer covering 20 and the base 10 form multiple overlapping edges that connect them in areas other than the edges. Each overlapping edge extends along a predetermined direction and is elongated. The outer covering 20 bulges upward between adjacent overlapping edges and between adjacent overlapping edges and joint edges 40, and cooperates with the base 10 to form a receiving cavity 21. The receiving cavity 21 is filled with the filler 30.

[0049] Specifically, the identical shape of the base 10 and the outer covering 20 means that their outer contours are identical. However, when flattened, the size of the outer covering 20 is larger than that of the base 10. This "larger size" means that, with the same outer contour shape, after the outer covering 20 is placed on the base 10, its outer contour will be offset outwards by a certain distance relative to the outer contour of the base 10. This distance is determined by the degree of bulging of the cavity 21 to be formed. When a greater degree of bulging of the cavity 21 is required, this offset distance can be increased; when a smaller degree of bulging of the cavity 21 is required, this offset distance can be decreased.

[0050] The overlapping and connection of the edges of the base 10 and the outer covering 20 to form a joining edge 40 means that the edges of the base 10 and the outer covering 20 are connected to each other as a whole, thereby connecting the base 10 and the outer covering 20 into a shoe upper 81 with a composite layer structure. It should be noted that since the outer perimeter of the outer covering 20 is longer than that of the base 10, a toothed method can be used to overlap and connect their edges. Specifically, triangular serrated notches with outward openings can be provided on the edges of the outer covering 20. When forming the joining edge 40, the two edges of the triangular notches on the outer covering 20 will approach each other, thus allowing the outer contour of the outer covering 20 to fit the outer contour of the base 10 as a whole. After the edges of the base 10 and the outer covering 20 are overlapped and connected, the areas of the base 10 and the outer covering 20 other than the edges are still unconnected. That is, at this point, the base 10 and the outer covering 20 form a large cavity, the periphery of which is closed by the joining edge 40.

[0051] Based on this, multiple overlapping edges are provided in the areas of the substrate 10 and the outer covering 20, excluding the edges, to connect and overlap the two. These overlapping edges are elongated and divide the large cavities originally formed on the substrate 10 and the outer covering 20 into multiple small, independent accommodating cavities 21. (Refer to...) Figure 1 and Figure 2The formation of the receiving cavity 21 can be described from both planar and three-dimensional dimensions. In the planar dimension, the receiving cavity 21 has edges, which are formed by the mating edges 40 and overlapping edges, thereby separating each receiving cavity 21 from other receiving cavities 21 and preventing gaps at the edges of the receiving cavity 21. In the three-dimensional dimension, the receiving cavity 21 is covered by an outer cladding 20 above it and a base 10 below it. The outer cladding 20 protrudes relative to the base 10, thereby forming a space between the base 10 and the outer cladding 20, which is the aforementioned receiving cavity 21.

[0052] The cavity 21 is filled with a filler 30, which is used for insulation. "Used for insulation" here means that after the filler 30 is filled into the cavity 21, it can improve the insulation performance of the shoe upper 81. It can be made of conventional insulation materials that are suitable for forming still air inside, such as down, synthetic fiber cotton or hollow fiber materials.

[0053] The base 10 and the outer covering 20 are joined and connected by stitching at the joining edge 40 and overlapping edge. Compared with other connection methods (such as adhesive bonding), stitching has higher connection strength and durability, effectively resisting external forces such as tension and bending during long-term use of the upper 81, preventing cracking or detachment at the joint, thereby significantly improving the overall structural stability and service life of the upper 81. In addition, the stitching method also ensures a tight fit between the overlapping part and the joining edge 40, reducing the possibility of cold air penetrating through the connection gap, further enhancing the warmth retention of the upper 81. At the same time, the stitching process is relatively simple and cost-controllable, helping to reduce production costs while ensuring performance.

[0054] Furthermore, referring to Figure 2 The base 10 includes a comfort layer 11 and a base layer 12 bonded together. The comfort layer 11 is close to the foot and made of a fleece-like fabric, while the base layer 12 is close to the outer covering 20 and made of foam material with a predetermined thickness. The outer covering 20 is made of breathable fabric. Specifically, the comfort layer 11 of the base 10 primarily functions to be close to the foot, providing a soft touch and a certain degree of moisture absorption, and is best suited to fleece-like fabrics such as microfiber fleece or coral fleece. The base layer 12 of the base 10 functions to provide elasticity and initial insulation, and is best suited to foam materials such as polyurethane (PU) foam or ethylene-vinyl acetate copolymer (EVA) foam. The outer covering 20 needs to balance breathability and a certain degree of abrasion resistance, and is best suited to breathable mesh fabric or microporous synthetic leather.

[0055] Furthermore, the shoe upper 81 forms a toe section 71 and a body section 72 corresponding to the toe position and the back position of the toe, respectively. The body section 72 forms an inner extension 73 and an outer extension 74 corresponding to the inner foot side and the outer foot side, respectively. The inner extension 73 and the outer extension 74 are disconnected at the middle position in the left-right direction and connected at the toe section 71.

[0056] Among them, reference Figure 1 There are multiple overlapping edges located at the toe 71, which are designated as first overlapping edges 50. These first overlapping edges 50 extend in a left-right direction, and their respective ends are connected to the joining edges 40 on the left and right sides, respectively. Furthermore, there are multiple overlapping edges located at the body 72, which are designated as second overlapping edges 60. These second overlapping edges 60 originate from the joining edge 40 at the rear end of the inner extension 73, extend towards the toe 71, and after passing around the toe 71, extend towards the rear end of the outer extension 74 and connect to the joining edge 40 at that rear end.

[0057] The design of the first overlapping edge 50 better adapts to the shape and movement characteristics of different areas of the foot. As the toe area 71 experiences frequent foot movement, the design of the first overlapping part extending in the left-right direction provides sufficient deformation space when the toes flex or extend, reducing pressure on the toes from the upper 81 and thus improving wearing comfort. The design of the second overlapping edge 60 forms a continuous support structure in the shoe body 72 that conforms to the foot's curve, effectively dispersing pressure generated during foot movement and reducing fatigue or wear caused by excessive local deformation of the upper 81. Simultaneously, the design of the second overlapping part bypassing the toe area 71 avoids direct interference with the toe movement area. Combined with its continuous extension path, it forms a "wrap-around" stable frame in the shoe body 72, further enhancing the fit and support of the upper 81 in the arch area, thereby improving wearing stability and comfort.

[0058] In a preferred embodiment, the distances between each of the first overlapping edges 50, between each of the second overlapping edges 60, and between adjacent first overlapping edges 50 and second overlapping edges 60 are approximately equal. This uniform spacing design ensures that the elasticity and deformation capacity of the shoe upper 81 are consistent across all areas, avoiding uneven stress or excessive deformation caused by local spacing differences, thereby improving the overall structural stability and durability of the shoe upper 81. Simultaneously, the uniform spacing also makes the distribution of the accommodating cavities 21 more regular, allowing the filling material 30 to form a uniform insulation layer in all areas of the shoe upper 81, further reducing uneven heat loss and significantly improving the uniformity of the insulation effect.

[0059] Furthermore, the first overlapping edge 50 is located in front of the second overlapping edge 60, and each of the first overlapping edges 50 includes, from left to right, a first extension segment 51, a second extension segment 52, a third extension segment 53, a fourth extension segment 54, and a fifth extension segment 55 that are smoothly connected; the first extension segment 51 extends from left to right, the second extension segment 52 extends from left to right from back to front at an angle, the third extension segment 53 extends from left to right, the fourth extension segment 54 extends from left to right from front to back at an angle, and the fifth extension segment 55 extends from left to right. Each of the second overlapping edges 60 includes, from left to right, a smoothly transitioning sixth extension segment 61, a seventh extension segment 62, an eighth extension segment 63, a ninth extension segment 64, a tenth extension segment 65, an eleventh extension segment 66, and a twelfth extension segment 67; the sixth extension segment 61 extends obliquely from back to front, the seventh extension segment 62 extends obliquely from left to right from back to front, the eighth extension segment 63 extends from back to front, the ninth extension segment 64 extends from left to right and is bent forward to bypass the toe 71, the tenth extension segment 65 extends from front to back, the eleventh extension segment 66 extends obliquely from left to right from front to back, and the twelfth extension segment 67 extends from front to back.

[0060] Specifically, refer to Figure 1 In this embodiment, the thermal upper, corresponding to the foot structure, forms a toe section 71 and a body section 72, which can be considered as the front and rear portions of the upper 81. The body section 72 further includes an inner extension 73 and an outer extension 74, with the portion separating them forming a tongue opening 75, facilitating the placement of the tongue after the upper 81 is bonded to the sole 82.

[0061] In this embodiment, two first overlapping edges 50 are located at the toe box 71. These two first overlapping edges 50 extend from left to right, forming a first extension segment 51, a second extension segment 52, a third extension segment 53, a fourth extension segment 54, and a fifth extension segment 55 that are smoothly connected. The phrase "extending from left to right" in this specification does not mean a completely straight extension from left to right, but rather an extension with a slight curvature, although its angle of inclination is smaller than that of an extension segment explicitly indicated as inclined. This multi-segment design better adapts to the multi-directional deformation needs of the toes during movement. By dispersing the pressure generated when the toes bend or extend through the directional changes of each extension segment, it avoids localized stress concentration caused by unidirectional extension, thereby significantly improving the comfort and flexibility of the toe area. Simultaneously, the smooth transition of the multi-segment design avoids the generation of stress concentration points, enhancing the durability of the upper 81 structure. Furthermore, this design ensures the reasonable distribution of the accommodating cavity 21 in the toe box 71, forming an effective insulation layer in areas with frequent toe movement, reducing heat loss, and keeping the toe box 71 warm.

[0062] In this embodiment, two second overlapping edges 60 are provided on the shoe body 72. These two second overlapping edges 60 are adapted to the shape of the shoe body 72 and extend from the inner extension 73 across the toe 71 to the outer extension 74, thus wrapping around the outside of the tongue opening 75. These two second overlapping edges 60 successively include a sixth extension segment 61, a seventh extension segment 62, an eighth extension segment 63, a ninth extension segment 64, a tenth extension segment 65, an eleventh extension segment 66, and a twelfth extension segment 67 that are smoothly connected. Note that "extending from front to back" or "extending from back to front" as used in this specification does not mean extending completely straight in the front-to-back direction, but rather an extension with a slight curvature, although its angle of inclination is smaller than that of an extension segment explicitly indicated as inclined. This multi-segment design can precisely conform to the complex curved shape of the arch area, effectively dispersing multi-directional pressure during foot movement through the directional adjustment of each extension segment, providing stronger wrapping and support, thereby improving wearing stability and comfort. Meanwhile, the flex design that bypasses the toe box 71 avoids interference with the toe area, further optimizing the functionality of the upper 81. In addition, the multi-segment extension design ensures the even distribution of the cavity 21 in the shoe body 72, forming a continuous insulation layer in the arch and surrounding areas, effectively blocking cold air intrusion and enhancing the overall warmth.

[0063] This embodiment relates to a thermal upper that achieves an effective combination of lightness, elasticity, and warmth through a unique structural design of the base 10 and the outer covering 20, as well as a reasonable configuration of the filling material 30. Its core technical feature lies in the overlapping and connection of the base 10 and the outer covering 20 edges to form a joint edge 40, and in other areas, multiple elongated overlapping edges connecting them. This causes the outer covering 20 to bulge upwards between adjacent overlapping edges and the joint edge 40, forming multiple cavities 21 with the base 10, and filling these cavities with thermal insulation material. The filling material 30 within the cavities 21 effectively blocks heat transfer between external cold air and the foot, while reducing heat convection and conduction, forming a relatively stable insulation layer, thereby significantly improving the thermal insulation effect of the upper 81. Furthermore, because the outer covering 20 is larger than the base 10 and bulges between the overlapping edges, this structure can deform under stress. Combined with the distribution design of the long strip-shaped overlapping edges, it enhances the overall elasticity of the upper 81, allowing the upper 81 to better conform to the shape of the foot during wear and providing superior comfort. More importantly, the cavity 21 formed by the bulge of the outer covering 20 is not simply used to house the filling material 30, but rather, while providing good deformation capability to the upper 81, it also accommodates more still air. Due to the enclosure of the outer covering 20 and the base 10, the air in the cavity 21 is less likely to escape and can be better retained by the filling material 30. In other words, the cooperation between the cavity 21 and the filling material 30 further improves the warmth retention performance of the upper 81.

[0064] Therefore, the thermal upper provided by this technical solution utilizes the cavity 21 formed by the outer covering material 20 protruding relative to the base 10 to accommodate the filling material 30, and the adjacent cavities 21 are separated by overlapping edges. Thus, multiple relatively independent cavities 21 are formed on the upper 81 at intervals. The overlapping edges allow the upper 81 to deform more easily. The cavities 21 provide warmth by accommodating the filling material 30, and the cavity structure formed by the cavities 21 themselves also provides a certain degree of warmth. Compared to conventional composite layer thermal uppers, the thermal upper provided by this technical solution can further improve the warmth of the upper 81 while making the upper 81 thinner and lighter, with better deformation capability and greater comfort; it also reduces material usage and overall weight, lowers manufacturing costs, and improves wearing comfort.

[0065] Example 2

[0066] Embodiment 2 of this utility model relates to a shoe, as shown in the following figure. Figure 3 The shoe includes a sole 82 and a warm upper as described in Example 1. The upper 81 can be bonded to the sole 82 by means of sewing, bonding, hot pressing, etc.

[0067] In the shoes described in this embodiment, the upper 81, through its lightweight and elastic structure and optimized warmth design, provides balanced support and comfort during wear, while effectively blocking external cold air and keeping the feet warm. This type of footwear meets consumers' dual needs for warmth and comfort in cold environments, and compared to traditional warm shoes, it is lighter and fits the feet better, significantly improving the wearing experience and practicality.

[0068] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A thermal shoe upper characterized by, The shoe comprises a base (10), an outer cover (20) and a filling (30): The base (10) and the outer cover (20) have the same shape, and the size of the outer cover (20) is larger than that of the base (10) in the flat state; The edges of the base (10) and the outer cover (20) are connected to form a joint edge (40), and the outer cover (20) and the base (10) are connected to form a plurality of coincident edges in other areas except the edges; each of the coincident edges extends in a predetermined direction and has a long strip shape; the outer cover (20) is raised upward between adjacent coincident edges and between adjacent coincident edges and the joint edge (40), and cooperates with the base (10) to form a receiving cavity (21); The receiving cavity (21) is filled with the filling (30) for warmth.

2. A thermal shoe upper as defined in claim 1, characterized in that The vamp (81) corresponds to the toe position and the position behind the toes to form a toe part (71) and a body part (72), respectively, and the body part (72) corresponds to the medial side and the lateral side to form a medial extension (73) and a lateral extension (74), respectively, which are disconnected at the middle position in the left-right direction and connected to the toe part (71); there are a plurality of coincident edges in the toe part (71), which are first coincident edges (50), and the first coincident edges (50) extend in the left-right direction, and the two ends of each of the first coincident edges (50) are connected to the joint edges (40) on the left and right sides, respectively.

3. A thermal shoe upper as defined in claim 2, wherein, There are a plurality of coincident edges in the body part (72), which are second coincident edges (60), and the second coincident edges (60) extend from the joint edges (40) at the rear end of the medial extension (73) to the toe part (71), bypass the toe part (71), and extend to the joint edges (40) at the rear end of the lateral extension (74) and are connected thereto.

4. A thermal shoe upper as defined in claim 3, wherein The distances among the first coincident edges (50), the second coincident edges (60), and adjacent first coincident edges (50) and second coincident edges (60) are substantially the same.

5. A thermal shoe upper as defined in claim 4, wherein, The first coincident edges (50) are located in front of the second coincident edges (60), and each of the first coincident edges (50) sequentially comprises a first extension segment (51), a second extension segment (52), a third extension segment (53), a fourth extension segment (54) and a fifth extension segment (55) which are smoothly connected; the first extension segment (51) extends from left to right, the second extension segment (52) extends from left to right and rear to front, the third extension segment (53) extends from left to right, the fourth extension segment (54) extends from left to right and front to rear, and the fifth extension segment (55) extends from left to right.

6. A thermal shoe upper as defined in claim 5, wherein, Each of the second coinciding edges (60) comprises in sequence from left to right a sixth extending section (61) smoothly connected, a seventh extending section (62), an eighth extending section (63), a ninth extending section (64), a tenth extending section (65), an eleventh extending section (66) and a twelfth extending section (67); the sixth extending section (61) extends rearwardly and forwardly obliquely, the seventh extending section (62) extends rearwardly and forwardly obliquely from left to right, the eighth extending section (63) extends rearwardly and forwardly, the ninth extending section (64) extends from left to right and is in the shape of a bending protruding forwardly to bypass the toe part (71), the tenth extending section (65) extends from front to back, the eleventh extending section (66) extends from front to back obliquely from left to right, and the twelfth extending section (67) extends from front to back.

7. A thermal shoe upper according to claim 1, wherein The joint edges (40) and the coinciding edges are used to stitch the base (10) and the outer cover (20) to connect them.

8. A thermal shoe upper according to claim 1, wherein, The base (10) comprises a comfort layer (11) and a foundation layer (12) which are adhered to each other; the comfort layer (11) is close to the foot and is made of a velvet fabric, and the foundation layer (12) is close to the outer cover (20) and is made of a foam material with a preset thickness.

9. A thermal shoe upper according to claim 1, wherein, The outer cover (20) is made of a breathable fabric, and the filler (30) is made of a warm-keeping material suitable for forming static air inside.

10. A shoe comprising a sole (82), characterized in that The shoe sole (82) is compounded with the warm-keeping upper as claimed in any one of claims 1-9.

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