Warm-keeping vamp and shoe

Abstract

The invention 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] The present invention relates to the technical field of shoe uppers, and particularly to a warm-keeping shoe upper and a shoe. Background Art

[0002] As an important part of footwear products, the shoe upper not only undertakes the function of protecting the foot, but also directly affects the wearing comfort and aesthetics. In cold seasons, warmth retention becomes one of the key performance indicators of the shoe upper. To meet consumers' demands for winter warm-keeping shoes, various warm-keeping shoe upper structures have emerged in the market. Among them, the more common ones are shoe uppers made of warm-keeping materials, such as those made of leather, fur, or those made of polyester fiber, polyamide fiber, etc. However, the shoe uppers made of such single materials have problems of high cost and poor air permeability. The prior art also discloses a composite-structured shoe upper with a warming function, generally including a cortex layer, an intermediate layer, and a lining layer, where the intermediate layer can be made of a warm-keeping material, and the three are bonded or stitched together, which can have a good warming effect. However, this kind of warm-keeping shoe upper structure is relatively thick and heavy, resulting in a lack of elasticity in the shoe upper and poor overall comfort. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background art, and provide a warm-keeping shoe upper and a shoe. On the premise of maintaining a good warming effect, the warm-keeping shoe upper has a more lightweight structure, good elasticity, and excellent comfort.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] Technical Solution 1: A warm-keeping shoe upper, which includes a base, an outer covering material, and a filler: the base and the outer covering material have the same shape, and in the flattened state, the size of the outer covering material is larger than that of the base; the edges of the base and the outer covering material coincide and are connected to form a joint edge, and the outer covering material and the base form a plurality of overlapping edges that overlap and connect the two in other areas except the edges; each of the overlapping edges extends in a preset direction and is strip-shaped; the outer covering material bulges upward between adjacent overlapping edges, between adjacent overlapping edges and the joint edge, and cooperates with the base to form a receiving cavity; the receiving cavity is filled with the filler for warming.

[0006] Based on Technical Solution 1, Technical Solution 2: The shoe upper forms a shoe head part and a shoe body part corresponding to the toe position and the position behind the toe of the foot respectively. The shoe body part forms an inner side extension part and an outer side extension part corresponding to the inner side and the outer side of the foot respectively. The inner side extension part and the outer side extension part are disconnected at the middle position in the left-right direction and are connected at the above-mentioned shoe head part; there are multiple overlapping edges located at the shoe head part as the first overlapping edges, and the overlapping edges of these first overlapping edges extend in the left-right direction, and both ends of each of them are respectively connected to the joint edges on the left and right sides.

[0007] Technical Solution Three based on Technical Solution Two: There are multiple overlapping edges located in the shoe body part that are second overlapping edges. These second overlapping edges start from the joint edge at the rear end of the inner extension part and extend towards the shoe head, bypass the shoe head, and then extend towards the rear end of the outer extension part and connect to the joint edge at the rear end.

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

[0009] Technical Solution Five based on Technical Solution Four: The first overlapping edge is located in front of the second overlapping edge, and each of the first overlapping edges sequentially includes a first extension section, a second extension section, a third extension section, a fourth extension section, and a fifth extension section that are smoothly transitionally connected from left to right; the first extension section extends from left to right, the second extension section extends obliquely from left to right from back to front, the third extension section extends from left to right, the fourth extension section extends obliquely from left to right from front to back, and the fifth extension section extends from left to right.

[0010] Technical Solution Six based on Technical Solution Five: Each of the second overlapping edges sequentially includes a sixth extension section, a seventh extension section, an eighth extension section, a ninth extension section, a tenth extension section, an eleventh extension section, and a twelfth extension section that are smoothly transitionally connected from left to right; the sixth extension section extends obliquely from back to front, the seventh extension section extends obliquely from left to right from back to front, the eighth extension section extends from back to front, the ninth extension section extends from left to right and is bent forward convexly to bypass the shoe head, the tenth extension section extends from front to back, the eleventh extension section extends obliquely from left to right from front to back, and the twelfth extension section extends from front to back.

[0011] Technical Solution Seven based on Technical Solution One: The joint edge and the overlapping edge are used to overlap and connect the base and the outer covering material by stitching.

[0012] Technical Solution Eight based on Technical Solution One: The base includes a comfort layer and a base layer that are adhesively bonded to each other; the comfort layer is close to the foot and uses a plush-feeling fabric, and the base layer is close to the outer covering material and uses a foam material with a preset thickness.

[0013] Technical Solution Nine based on Technical Solution One: The outer covering material uses a breathable fabric, and the filling material uses a heat-preserving material suitable for forming static air inside.

[0014] In addition, the present invention also provides Technical Solution Ten: A shoe, which includes a sole, and the sole is compounded with a heat-preserving shoe upper as described in any one of Technical Solutions One to Nine.

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

[0016] Technical solution one provides a warm-keeping shoe upper. Through the unique structural design of the base and the outer covering material, as well as the reasonable configuration of the filler, the effective combination of lightness, elasticity and warmth retention is achieved. Its core technical feature is that the edges of the base and the outer covering material coincide and are connected to form a joint edge, and in other areas, they are connected by a plurality of long strip-shaped coincident edges, so that the outer covering material bulges upward between adjacent coincident edges and the joint edge, forming a plurality of accommodating cavities with the base, and a heat-preserving material is filled in the cavities. The filler in the accommodating cavity can effectively block the heat transfer between the external cold air and the foot, and at the same time reduce the convection and conduction of heat, forming a relatively stable heat-insulating layer, thus significantly improving the warmth retention effect of the shoe upper. In addition, since the size of the outer covering material is larger than that of the base and bulges between the coincident edges, this structure can produce a certain deformation when stressed. Combined with the distribution design of the long strip-shaped coincident edges, the overall elasticity of the shoe upper is enhanced, so that the shoe upper can better fit the shape of the foot during wearing and provide better comfort. More importantly, the accommodating cavities formed by the bulge of the outer covering material are not simply used to accommodate the filler, but while providing good deformation ability for the shoe upper, the accommodating cavities are used to accommodate more static air. Due to the wrapping of the outer covering material and the base, the air in the accommodating cavity is less likely to escape and can be better retained by the filler, that is, by the cooperation between the accommodating cavity and the filler, the warmth retention performance of the shoe upper is further improved.

[0017] Therefore, the warm-keeping shoe upper provided by this technical solution uses the accommodating cavities formed by the bulge of the outer covering material relative to the base to accommodate the filler, and separates the adjacent accommodating cavities through the coincident edges. Therefore, a plurality of relatively independent accommodating cavities arranged at intervals will be formed on this shoe upper. The setting of the coincident edges can make the shoe upper more easily deformed. The accommodating cavities provide a warmth retention effect by accommodating the filler, and at the same time, the cavity structure formed by the accommodating cavities themselves can also play a certain warmth retention effect. Compared with the warm-keeping shoe upper with a conventional composite layer structure, the warm-keeping shoe upper provided by this technical solution can further improve the warmth retention effect of the shoe upper while making the shoe upper thinner and lighter, the shoe upper has better deformation ability and better comfort; and it reduces the material usage and the overall weight, reduces the manufacturing cost and improves the wearing comfort.

[0018] Based on Technical Solution One, Technical Solution Two further optimizes the structural layout of the shoe upper in the toe area and the shoe body area. By setting a first overlapping part extending in the left - right direction in the toe area and connecting both ends to the joint edge, and at the same time forming an inner extension part and an outer extension part in the shoe body area. This design can better adapt to the shape and movement characteristics of different areas of the foot. As the toe area is a region where the foot moves frequently, the design of the first overlapping part extending in the left - right direction can provide sufficient deformation space when the toes bend or stretch, reducing the pressure of the shoe upper on the toes, thus enhancing the wearing comfort. At the same time, the inner and outer extension part structures in the shoe body area can effectively wrap the arch area of the foot, providing the necessary support force. Combined with the design of being disconnected left and right and connected in the toe area, it further enhances the overall structural stability of the shoe upper. Therefore, this regionalized structural design enables the shoe upper to balance warmth retention and elasticity in different parts, avoiding the situation of being too tight or too loose locally, thus optimizing the overall wearing experience.

[0019] Based on Technical Solution Two, Technical Solution Three further refines the extension path of the second overlapping part in the shoe body area. Starting from the joint edge at the rear end of the inner extension part, it extends towards the toe area and bypasses the toe area and then connects to the joint edge at the rear end of the outer extension part. This design can form a continuous support structure that conforms to the foot curve in the shoe body area, effectively dispersing the pressure generated during foot movement, reducing fatigue or wear caused by excessive local deformation of the shoe upper. At the same time, the design of the second overlapping part bypassing the toe area avoids direct interference with the toe movement area. Combined with its continuous extension path, it can form a "surround - type" stable framework in the shoe body area, further enhancing the wrapping and support of the shoe upper in the arch area, thus enhancing the wearing stability and comfort. In addition, this path design also ensures the uniform distribution of the accommodation cavity in the shoe body area, can form a stable heat - preservation layer in the arch area, maintain the foot temperature, and enhance the overall warmth - retention effect.

[0020] Based on Technical Solution Three, Technical Solution Four clarifies that the distances between the first overlapping part, the second overlapping part, and between adjacent first and second overlapping parts are equivalent. This design with uniform spacing can ensure that the elasticity and deformation ability of the shoe upper in each area tend to be consistent, avoiding uneven force or excessive deformation caused by local spacing differences, thus enhancing the overall structural stability and durability of the shoe upper. At the same time, the uniform spacing also makes the distribution of the accommodation cavity more regular, and the filling material can form a uniform heat - preservation layer in each area of the shoe upper, further reducing the uneven phenomenon of heat dissipation and significantly enhancing the balance of the warmth - retention effect. In addition, this design also helps to simplify the manufacturing process, reduce the process difficulty caused by uneven spacing during production, and ensure the consistency of product quality.

[0021] Based on Technical Solution Four, in Technical Solution Five, a multi-segment extension design is carried out on the first overlapping part of the shoe head. It includes the first to fifth extension segments with smooth transitional connections, presenting different extension directions and inclination angles respectively. This multi-segment design can better adapt to the multi-directional deformation requirements of the toes during movement. By changing the directions of each extension segment, the pressure generated when the toes bend or stretch is dispersed, avoiding local stress concentration caused by single-direction extension, thus significantly improving the comfort and flexibility of the toe area. At the same time, the smooth transitional connection of the multi-segment design avoids the generation of stress concentration points and enhances the durability of the shoe upper structure. In addition, this design also ensures the reasonable distribution of the accommodation cavity in the shoe head, can form an effective heat preservation layer in the area where the toes move frequently, reduce heat dissipation, and keep the shoe head warm.

[0022] Based on Technical Solution Five, in Technical Solution Six, a more complex multi-segment extension design is carried out on the second overlapping part of the shoe body. It includes the sixth to twelfth extension segments, and each segment presents different inclination angles and bending forms. Especially when the ninth extension segment bypasses the shoe head, it shows a forward-protruding bending shape. This multi-segment design can accurately fit the complex curved surface shape of the arch area. By adjusting the directions of each extension segment, the multi-directional pressure during foot movement is effectively dispersed, providing stronger wrapping and support, thus improving the wearing stability and comfort. At the same time, the bending design that bypasses the shoe head avoids interfering with the toe movement area and further optimizes the regional functionality of the shoe upper. In addition, the multi-segment extension design also ensures the uniform distribution of the accommodation cavity in the shoe body, can form a continuous heat preservation layer in the arch and surrounding areas, effectively block the invasion of cold air, and enhance the overall heat preservation effect.

[0023] Based on Technical Solution One, in Technical Solution Seven, it is clearly stated to use a stitching method to connect the joint edges and overlapping parts of the base and the outer covering material. Stitching connection has higher connection strength and durability compared to other connection methods (such as gluing). It can effectively resist external forces such as stretching and bending during the long-term use of the shoe upper, avoid cracking or falling off of the joint parts, thus significantly improving the overall structural stability and service life of the shoe upper. In addition, the stitching method can also ensure the tight fitting of the overlapping parts and joint edges, reduce the possibility of cold air penetrating through the connection gaps, and further enhance the heat preservation effect of the shoe upper. At the same time, the stitching process is relatively simple and the cost is controllable, which helps to reduce the production cost while ensuring performance.

[0024] Based on Technical Solution 1, this solution optimizes the base structure and designs it as a composite structure including a comfort layer and a base layer. The comfort layer uses a velvet-like fabric close to the foot, and the base layer uses a foam material with a preset thickness close to the outer covering material. The velvet-like fabric can reduce the friction with the foot through its soft and fine surface structure, improving the tactile comfort. At the same time, its microporous structure can adsorb moisture to a certain extent and keep the foot dry. The foam material has a low thermal conductivity due to its porous characteristics, which can effectively block the heat transfer between the external cold air and the foot, forming a preliminary thermal insulation layer. In addition, the elasticity and buffering performance of the foam material can also absorb the impact force generated during foot movement, reducing foot fatigue, and further improving the comfort and protection of wearing.

[0025] Based on Technical Solution 1, this solution optimizes the materials of the outer covering material and the filling material. The outer covering material uses a breathable fabric, and the filling material uses a thermal insulation material suitable for forming static air. The filling material can significantly reduce the convection and conduction effects of heat by forming a static air layer in the accommodation cavity, effectively blocking the heat exchange between the external cold air and the foot, thereby providing excellent thermal insulation effect. At the same time, the use of a breathable fabric for the outer covering material can allow moisture to escape to a certain extent, reduce the stuffy and humid feeling caused by long-term enclosure of the foot, optimize the microenvironment inside the shoe upper, and improve the comfort of wearing. This material combination takes into account breathability while ensuring thermal insulation, and has a thinner and more comfortable wearing experience compared to traditional single thermal insulation materials or thick composite materials.

[0026] Composite the thermal insulation shoe upper described in any one of Technical Solutions 1 to 9 with a sole to form a complete footwear product. Through its thin and elastic structure and optimized thermal insulation design, the shoe upper can provide balanced support and comfort during wearing, while effectively blocking the external cold air and keeping the foot warm. This footwear product can meet the dual needs of consumers for thermal insulation and comfort in cold environments, and has the characteristics of being lighter and more conforming to the foot compared to traditional thermal insulation shoes, significantly improving the wearing experience and practicality. Brief Description of the Drawings

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a top view schematic diagram of a flattened state of a thermal insulation shoe upper according to an embodiment of the present invention;

[0029] Figure 2 ForFigure 1 Schematic diagram of cross-section A-A

[0030] Figure 3 Stereoscopic diagram of a shoe according to an embodiment of the present invention

[0031] Description of main reference numerals:

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

[0033] Outer covering 20; Accommodation cavity 21

[0034] Filler 30

[0035] Joint edge 40

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

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

[0038] Shoe head 71; Shoe body 72; Inner extension 73; Outer extension 74; Tongue opening 75

[0039] Upper 81; Sole 82 Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0041] In the claims, the specification and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., are all used to distinguish different objects and not for describing a specific order.

[0042] In the claims, description and above-mentioned drawings of the present invention, unless otherwise clearly defined, for orientation terms, such as the use of terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or positional relationship are based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the specific protection scope of the present invention.

[0043] In the claims, description and above-mentioned drawings of the present invention, unless otherwise clearly defined, if the terms "fixed connection" or "fixedly connected" are used, they should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is to say, it includes non-detachable fixed connection, detachable fixed connection, being integrally connected and being fixed by other devices or elements.

[0044] In the claims, description and above-mentioned drawings of the present invention, if the terms "comprise", "have" and their variants are used, they are intended to mean "including but not limited to".

[0045] Embodiment 1

[0046] Embodiment 1 of the present invention relates to a warm-keeping shoe upper, and this shoe upper 81 can be used in cooperation with a sole 82 to form a shoe.

[0047] Referring to Figure 1 and Figure 2 , this shoe upper 81 includes a base 10, an outer covering 20 and a filler 30. Among them Figure 1 is a top view of the flattened state of this shoe upper 81. After this shoe upper 81 is compounded to the sole 82, this shoe upper 81 will be bent and cooperate with the sole 82 to define a shoe cavity for accommodating the user's foot.

[0048] The base 10 and the outer covering 20 have the same shape, and in the flattened state, the size of the outer covering 20 is larger than that of the base 10; the edges of the base 10 and the outer covering 20 are overlapped and connected to form a joint edge 40, and the outer covering 20 and the base 10 form a plurality of overlapping edges for overlapping and connecting the two in other areas except the edges; each of the overlapping edges extends in a preset direction and is strip-shaped; the outer covering 20 bulges upward between adjacent overlapping edges and between adjacent overlapping edges and the joint edge 40, and cooperates with the base 10 to form an accommodating cavity 21; the accommodating cavity 21 is filled with the filler 30.

[0049] Specifically, the shapes of the substrate 10 and the outer covering material 20 are consistent, which means that the outer contour shapes of the two are consistent, but when the two are flattened, the size of the outer covering material 20 is larger than the size of the substrate 10. The larger size here means that under the same outer contour shape, after the outer covering material 20 is covered on the substrate 10, the outer contour of the outer covering material 20 will be offset outward by a certain distance compared with the outer contour of the substrate 10. This distance is determined according to the bulge degree of the accommodating cavity 21 to be formed. When the bulge degree of the accommodating cavity 21 is required to be larger, the offset distance can be increased, and when the bulge degree of the accommodating cavity 21 is required to be smaller, the offset distance can be reduced.

[0050] The edges of the base 10 and the outer covering material 20 overlap and connect to form the joint edge 40, which means that the edge positions of the base 10 and the outer covering material 20 are connected to each other as a whole, so that the base 10 and the outer covering material 20 are connected to form a shoe upper 81 with a composite layer structure. It should be noted that since the outer contour circumference of the outer covering material 20 is longer than the outer contour circumference of the base 10, the edges of the two can be overlapped and connected by eliminating teeth. Specifically, a triangular sawtooth notch opening outward can be set on the edge of the outer covering material 20. When the joint edge 40 is formed, the two edges of the triangular notch on the outer covering material 20 will be close to each other, so that the outer contour of the outer covering material 20 can be adapted to the outer contour of the base 10 as a whole. After the edges of the base 10 and the outer covering material 20 overlap and connect, at this time, the base 10 and the outer covering material 20 are still in an unconnected state except for the edges, that is, at this time, a large cavity is formed by the cooperation of the base 10 and the outer covering material 20, and the surrounding side of this cavity is closed by the joint edge 40.

[0051] On this basis, multiple overlapping edges are arranged on the substrate 10 and the outer covering material 20 except for the edges, and the overlapping edges are in the shape of long strips, and the large cavity originally formed on the substrate 10 and the outer covering material 20 is divided into multiple small, mutually independent accommodating cavities 21. Figure 1 and Figure 2 The formation of the accommodating cavity 21 can be explained from the plane dimension and the three-dimensional dimension. In the plane dimension, the accommodating cavity 21 has edges, and these edges are formed by the joint edges 40 and the overlapping edges, so as to separate each accommodating cavity 21 from other accommodating cavities 21 and avoid the occurrence of gaps at the edges of the accommodating cavity 21. In the three-dimensional dimension, the upper part of the accommodating cavity 21 is the outer covering material 20, and the lower part is the base 10. The outer covering material 20 is raised relative to the base 10, so as to form a space between the base 10 and the outer covering material 20, and the space is the above-mentioned accommodating cavity 21.

[0052] The accommodating cavity 21 is filled with a filling material 30 for warmth retention. Here, "for warmth retention" means that after the filling material 30 is filled into the accommodating cavity 21, it can improve the warmth retention performance of the shoe upper 81. It can adopt warmth retention materials suitable for forming static air inside in the conventional sense, such as down, synthetic fiber cotton, or hollow fiber materials, etc.

[0053] Among them, the joint edge 40 and the overlapping edge are stitched to overlap and connect the base 10 and the outer covering 20. Stitching connection has higher connection strength and durability compared with other connection methods (such as gluing). It can effectively resist external forces such as stretching and bending during the long-term use of the shoe upper 81, avoid cracking or falling off at the joint part, thereby significantly improving the overall structural stability and service life of the shoe upper 81. In addition, the stitching method can also ensure the tight fit of the overlapping part and the joint edge 40, reduce the possibility of cold air penetrating through the connection gap, and further enhance the warmth retention effect of the shoe upper 81. At the same time, the stitching process is relatively simple and the cost is controllable, which helps to reduce the production cost while ensuring the performance.

[0054] And, referring to Figure 2 , the base 10 includes a comfort layer 11 and a base layer 12 that are adhesively bonded to each other; the comfort layer 11 is close to the foot and uses a plush-feeling fabric, and the base layer 12 is close to the outer covering 20 and uses a foam material with a preset thickness. The outer covering 20 uses a breathable fabric. Specifically, for the comfort layer 11 of the base 10, its main function is to be close to the foot, provide a soft touch and certain moisture absorption, and it is suitable to use a plush-feeling fabric, such as microfiber flannel or coral fleece material. For the base layer 12 of the base 10, its function is to provide elasticity and a preliminary heat preservation effect, and it is suitable to use a foam material, such as polyurethane (PU) foam or ethylene-vinyl acetate copolymer (EVA) foam. For the outer covering 20, it needs to balance breathability and certain wear resistance, and it is suitable to use a breathable mesh or microporous synthetic leather material.

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

[0056] Among them, referring to Figure 1, there are multiple first overlapping edges 50 located at the shoe head portion 71. These first overlapping edges 50 extend along the left - right direction, and both ends of each of them are respectively connected to the joining edges 40 on the left and right sides. And there are multiple second overlapping edges 60 located at the shoe body portion 72. These second overlapping edges 60 start from the joining edge 40 at the rear end of the inner extension portion 73 and extend towards the shoe head portion 71, bypass the shoe head portion 71 and then extend towards the rear end of the outer extension portion 74 and are connected to the joining edge 40 at this rear end.

[0057] The design of the first overlapping edge 50 can better adapt to the shape and movement characteristics of different regions of the foot. As the area where the foot moves frequently, the design of the first overlapping portion extending along the left - right direction can provide sufficient deformation space when the toes bend or stretch, reducing the pressure of the shoe upper 81 on the toes, thereby improving wearing comfort. The design of the second overlapping edge 60 can form a continuous support structure that conforms to the foot curve in the shoe body portion 72, effectively dispersing the pressure generated during foot movement and reducing fatigue or wear caused by excessive local deformation of the shoe upper 81. At the same time, the design of the second overlapping portion bypassing the shoe head portion 71 avoids direct interference with the toe movement area. Combining its continuous extension path, it can form a "wraparound" - like stable framework in the shoe body portion 72, further enhancing the wrapping and support of the shoe upper 81 in the arch area, thereby improving the stability and comfort of wearing.

[0058] As a preferred implementation, the distances between the first overlapping edges 50, between the second overlapping edges 60, and between adjacent first overlapping edges 50 and second overlapping edges 60 are quite equal. This design with uniform spacing can ensure that the elasticity and deformation ability of the shoe upper 81 in each area tend to be consistent, avoiding uneven stress or excessive deformation caused by local spacing differences, thereby improving the overall structural stability and durability of the shoe upper 81. At the same time, the uniform spacing also makes the distribution of the accommodation cavity 21 more regular, and the filler 30 can form a uniform heat - preservation layer in each area of the shoe upper 81, further reducing the uneven phenomenon of heat dissipation and significantly improving the balance of the heat - preservation effect.

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

[0060] Specifically, referring to Figure 1 , the warm-keeping shoe upper involved in this embodiment corresponds to the foot structure and respectively forms a shoe head 71 and a shoe body 72, which can be considered as the front part and the rear part in the structure of the shoe upper 81. The shoe body 72 further includes an inner extension part 73 and an outer extension part 74, and the disconnected part between the two forms a tongue opening 75, which is convenient for setting a shoe tongue after the shoe upper 81 is compounded to the sole 82.

[0061] In this embodiment, two first overlapping edges 50 are provided at the shoe head 71, and these two first overlapping edges 50 extend from left to right, sequentially forming a first extension section 51, a second extension section 52, a third extension section 53, a fourth extension section 54, and a fifth extension section 55 that are smoothly and transitionally connected. Among them, the "extending from left to right" mentioned in this specification does not mean extending completely straight from left to right, but can have a slightly curved extension, but the inclination angle is smaller than the extension section that clearly indicates an inclined extension. This multi-segment design can better adapt to the multi-directional deformation requirements of the toes during movement, disperse the pressure generated when the toes bend or stretch through the direction changes of each extension section, avoid local stress concentration caused by a single-direction extension, and thus significantly improve the comfort and flexibility of the toe area. At the same time, the smooth and transitional connection of the multi-segment design avoids the generation of stress concentration points and enhances the durability of the structure of the shoe upper 81. In addition, this design also ensures the reasonable distribution of the accommodation cavity 21 at the shoe head 71, can form an effective heat preservation layer in the area where the toes move frequently, reduce heat dissipation, and keep the shoe head 71 warm.

[0062] In this embodiment, two second overlapping edges 60 are arranged on the shoe body 72. The two second overlapping edges 60 are adapted to the shape of the shoe body 72, and extend from the inner extension portion 73 across the toe portion 71 to the outer extension portion 74, so as to be arranged outside the tongue opening 75. The two second overlapping edges 60 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, which are smoothly transitioned and connected. Among them, "extending from front to back" or "extending from back to front" mentioned in this specification does not mean extending completely straight in the front-to-back direction, but an extension with a slight curvature change, but its inclination angle is smaller than the extension segment that clearly indicates the inclined extension. This multi-segment design can accurately fit the complex curved surface morphology of the arch area, and effectively disperse the multi-directional pressure during foot movement by adjusting the direction of each extension segment, providing stronger wrapping and support, thereby improving the stability and comfort of wearing. At the same time, the bending design bypassing the toe portion 71 avoids interference with the toe activity area, further optimizing the regional functionality of the upper 81. In addition, the multi-stage extension design also ensures that the accommodating cavity 21 is evenly distributed in the shoe body 72, and can form a continuous insulation layer in the arch and surrounding areas, effectively blocking the invasion of cold air and enhancing the overall warmth effect.

[0063] The present embodiment relates to a thermal insulation upper, which achieves an effective combination of lightness, elasticity and warmth retention through the unique structural design of the base 10 and the outer covering material 20, as well as the reasonable configuration of the filler 30. Its core technical feature is that the edges of the base 10 and the outer covering material 20 overlap and connect to form a joint edge 40, and are connected in other areas by multiple long strips of overlapping edges, so that the outer covering material 20 bulges upward between adjacent overlapping edges and the joint edges 40, forming multiple accommodating cavities 21 with the base 10, and the cavities are filled with thermal insulation material. The filler 30 in the accommodating cavity 21 can effectively block the heat transfer between the external cold air and the foot, while reducing the convection and conduction of heat, forming a relatively stable thermal insulation layer, thereby significantly improving the warmth retention effect of the upper 81. In addition, since the outer covering material 20 is larger than the base 10 and bulges between the overlapping edges, this structure can produce a certain deformation when subjected to force. Combined with the distribution design of the long overlapping edges, the overall elasticity of the upper 81 is enhanced, so that the upper 81 can better fit the shape of the foot during wearing and provide better comfort. More importantly, the accommodating cavity 21 formed by the bulge of the outer covering material 20 is not simply used to accommodate the filler 30, but while providing the upper 81 with good deformation ability, the accommodating cavity 21 is used to accommodate more static air. Due to the wrapping of the outer covering material 20 and the base 10, the air in the accommodating cavity 21 is less likely to escape and can be better retained by the filler 30. That is, the cooperation between the accommodating cavity 21 and the filler 30 is used to further improve the thermal insulation performance of the upper 81.

[0064] Therefore, the warm-keeping shoe upper provided by this technical solution utilizes the accommodation cavity 21 formed by the outer covering material 20 bulging relative to the base 10 to accommodate the filler 30, and separates the adjacent accommodation cavities 21 through the overlapping edge. Therefore, a plurality of relatively independent accommodation cavities 21 arranged at intervals are formed on the shoe upper 81. The setting of the overlapping edge enables the shoe upper 81 to be more easily deformed. The accommodation cavity 21 provides a warm-keeping effect by accommodating the filler 30. At the same time, the cavity structure formed by the accommodation cavity 21 itself can also play a certain warm-keeping role. Compared with the conventional warm-keeping shoe upper with a composite layer structure, the warm-keeping shoe upper provided by this technical solution can further improve the warm-keeping effect of the shoe upper 81 while making the shoe upper 81 thinner and lighter, the shoe upper 81 has better deformation ability and better comfort; and reduces the material usage and the overall weight, reduces the manufacturing cost and improves the wearing comfort.

[0065] Embodiment 2

[0066] Embodiment 2 of the present invention relates to a shoe. Referring to Figure 3 , this shoe includes a shoe sole 82 and the warm-keeping shoe upper as described in Embodiment 1. The shoe upper 81 can be compounded to the shoe sole 82 by means of sewing, bonding, hot pressing, etc.

[0067] In the shoe related to the embodiment of the present invention, through its thin and elastic structure and optimized warm-keeping design, the shoe upper 81 can provide balanced support force and comfort during wearing, and at the same time effectively block the external cold air and keep the feet warm. This kind of shoe product can meet the dual needs of consumers for warm-keeping and comfort in a cold environment. Compared with traditional warm-keeping shoes, it has the characteristics of being lighter and more fitting to the feet, significantly improving the wearing experience and practicality.

[0068] The above description of the specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation to the protection scope of the present invention. Through the inspiration of the present invention or the above embodiments, those of ordinary skill in the art, combined with common general knowledge, ordinary technical knowledge in this field and / or the prior art, through logical analysis, reasoning or limited experiments, can obtain modifications, equivalent replacements or other improvements to the embodiments of the present invention or some of its technical features, which should all be included in the protection scope of the present invention.

Claims

1. A warm shoe upper, characterized in that: It comprises a base (10), an outer covering material (20) and a filler (30): The base (10) and the outer covering material (20) have the same shape, and in a flattened state, the size of the outer covering material (20) is larger than the size of the base (10); The edges of the base (10) and the outer covering material (20) are overlapped and connected to form a joint edge (40), and the outer covering material (20) and the base (10) form a plurality of overlapped edges that overlap and connect the two in other areas except the edges; each of the overlapped edges extends along a preset direction and is in a long strip shape; the outer covering material (20) bulges upwards between adjacent overlapped edges and between adjacent overlapped edges and the joint edge (40), and cooperates with the base (10) to form a receiving cavity (21); The accommodating cavity (21) is filled with the filler (30) for keeping warm.

2. A thermal insulated shoe upper as claimed in claim 1, characterized in that: The upper (81) forms a toe portion (71) and a body portion (72) corresponding to the toe position and the rear position of the toe, respectively; the body portion (72) forms an inner extension portion (73) and an outer extension portion (74) corresponding to the inner foot side and the outer foot side, respectively; the inner extension portion (73) and the outer extension portion (74) are disconnected at the middle position in the left-right direction and connected at the toe portion (71); there are a plurality of overlapping edges located at the toe portion (71) as first overlapping edges (50); the overlapping edges of the first overlapping edges (50) extend in the left-right direction, and the two ends of each are respectively connected to the joining edges (40) on the left and right sides.

3. A thermal insulated shoe upper as claimed in claim 2, characterized in that: There are a plurality of overlapping edges located on the shoe body (72) as second overlapping edges (60), which start from the joining edge (40) at the rear end of the medial extension portion (73) and extend toward the toe portion (71), bypass the toe portion (71), and then extend toward the rear end of the lateral extension portion (74) and connect to the joining edge (40) at the rear end.

4. A thermal insulated shoe upper as claimed in claim 3, characterized in that: The distances between the first overlapping edges (50), the distances between the second overlapping edges (60), and the distances between adjacent first overlapping edges (50) and second overlapping edges (60) are equal.

5. A thermal insulated shoe upper as claimed in claim 4, characterized in that: The first overlapping edges (50) are located in front of the second overlapping edges (60), and each of the first overlapping edges (50) comprises, from left to right, a first extension section (51), a second extension section (52), a third extension section (53), a fourth extension section (54) and a fifth extension section (55) which are smoothly transitioned and connected; the first extension section (51) extends from left to right, the second extension section (52) extends obliquely from left to right and from back to front, the third extension section (53) extends from left to right, the fourth extension section (54) extends obliquely from left to right and from front to back, and the fifth extension section (55) extends from left to right.

6. A thermal insulated shoe upper as claimed in claim 5, characterized in that: Each of the second overlapping edges (60) includes, from left to right, 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) which are smoothly transitioned and connected; the sixth extension segment (61) extends obliquely from back to front, the seventh extension segment (62) extends obliquely from left to right and 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 shoe head (71), the tenth extension segment (65) extends from front to back, the eleventh extension segment (66) extends obliquely from left to right and from front to back, and the twelfth extension segment (67) extends from front to back.

7. The thermal insulated shoe upper according to claim 1, characterized in that: The joint edge (40) and the overlap edge are connected by overlapping the base (10) and the outer covering material (20) by sewing.

8. The thermal insulated shoe upper according to claim 1, characterized in that: The base (10) comprises a comfort layer (11) and a base layer (12) bonded to each other; the comfort layer (11) is close to the foot and is made of velvet fabric, and the base layer (12) is close to the outer covering material (20) and is made of foam material with a preset thickness.

9. The thermal insulated shoe upper according to claim 1, characterized in that: The outer covering material (20) is made of breathable fabric, and the filler (30) is made of a thermal insulation material suitable for forming still air inside.

10. A shoe comprising a sole (82), characterized in that: The sole (82) is compounded with the thermal insulation upper as described in any one of claims 1 to 9.

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