Heat insulation shoes
By combining melamine interlayer with composite layer in the upper, combined with indentation and breathable hole design, the problems of large thickness and poor comfort of existing thermal insulation shoes are solved, and the thermal insulation performance and service life are improved.
Patent Information
- Application Number
- CN202421002739.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-09
AI Technical Summary
Existing heat-insulated shoes are generally made of fleece, resulting in a large thickness of the upper, poor comfort, and a fragile melamine sponge, making it difficult to apply to the footwear field.
The upper is made of melamine interlayer. Through the inner and outer composite sandwich structure, combined with indentation and breathable hole design, the upper is enhanced to avoid breaking of melamine interlayer.
It achieves the improvement of upper thickness and thermal insulation performance, extends service life, reduces foot stuffing, and improves wear comfort and durability.
Smart Images
Figure CN222264537U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shoe structures, in particular to a pair of heat-insulating shoes. Background Art
[0002] Melamine sponge has good thermal insulation and antioxidant properties and is widely used in the fields of building decoration, transportation, aerospace, etc. that require thermal insulation. However, melamine sponge is brittle and easily breaks under tension, which makes it difficult to use melamine sponge in the fields of footwear, clothing, etc.
[0003] In the related art, shoes with good heat insulation or thermal insulation performance are generally made by adding velvet, and the upper thickness is relatively thick and the comfort is relatively poor. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a heat-insulating shoe, which is conducive to taking into account both the thickness and heat-insulating performance of the shoe upper.
[0005] The heat-insulating shoes according to the embodiment of the utility model include: an upper, including a first composite layer, a melamine interlayer and a second composite layer, the first composite layer is connected to the inner surface of the melamine interlayer, and the second composite layer is connected to the outer surface of the melamine interlayer; a sole, connected to the upper to jointly form a cavity for the foot to wear.
[0006] The heat-insulating shoes according to the embodiments of the utility model have at least the following beneficial effects: the heat-insulating shoes use a melamine interlayer to form the upper, specifically, the upper includes a first composite layer, a melamine interlayer and a second composite layer connected in sequence from the inside to the outside, that is, the melamine interlayer is sandwiched between the first composite layer and the second composite layer, and the heat-insulating and thermal-preserving properties of the melamine interlayer are utilized to enhance the heat-insulating properties of the shoes, and the melamine interlayer has the characteristic of low bulk density, which is beneficial to taking into account the overall thickness and weight of the upper to enhance the wearing experience of the user, and the heat-insulating shoes are compounded by the first composite layer and the second composite layer, which is beneficial to enhance the tensile fracture resistance of the upper, reduce or avoid the defect of the melamine interlayer fracture caused by the bending of the upper, and make the melamine sponge applicable to the upper.
[0007] According to some embodiments of the present invention, the elongation at break of the first composite layer or the second composite layer is less than the elongation at break of the melamine interlayer.
[0008] Specifically, the elongation at break of the first composite layer or the second composite layer is smaller than the elongation at break of the melamine interlayer. The thermally insulating shoes can limit the elongation of the melamine interlayer through the material properties of the first composite layer or the second composite layer. By limiting the elongation and fracture of the melamine interlayer, the defect of the melamine interlayer fracture caused by bending and stretching of the shoe upper can be reduced or avoided, which is beneficial to improving the service life of the thermally insulating shoes.
[0009] According to some embodiments of the present utility model, a plurality of indentations are pressed on the upper surface, and the upper surface is divided into a plurality of cells along the indentations.
[0010] Specifically, a plurality of indentations are pressed on the upper. The setting of the indentations is conducive to improving the connection stability of the first composite layer, the melamine interlayer and the second composite layer. The upper is divided into a plurality of cells along the indentations, thereby separating and confining the melamine interlayer within a plurality of cells, which is conducive to enhancing the tensile or bending resistance of the overall upper, avoiding the problem of large-area fracture of the melamine interlayer, and is conducive to increasing the service life of the insulating shoes.
[0011] According to some embodiments of the present invention, a plurality of ventilation holes are provided on the upper at the indentation.
[0012] Taking into account the breathability of the upper, the upper is also provided with multiple ventilation holes at the indentation. The setting of the ventilation holes can connect the cavity with the external atmosphere, which is conducive to alleviating the condition of stuffy feet in the insulating shoes and avoiding the problem of athlete's foot after users wear the insulating shoes for a long time.
[0013] According to some embodiments of the present invention, two rows of ventilation holes are provided on each indentation of the upper.
[0014] Specifically, two rows of air holes are provided at each indentation of the shoe upper. The provision of the air holes can connect the cavity with the external atmosphere, which is helpful to alleviate the condition of stuffy feet in the insulating shoes and avoid the problem of athlete's foot after users wear the insulating shoes for a long time.
[0015] According to some embodiments of the present invention, both the inner surface and the outer surface of the upper are provided with indentations; and / or,
[0016] The indentations are molded into the outer surface of the upper.
[0017] Optionally, indentations are provided on the inner surface or the outer surface of the shoe upper. The provision of the indentations is conducive to improving the connection stability of the first composite layer, the melamine interlayer and the second composite layer. The shoe upper is divided into a plurality of cells along the indentations, thereby separating and confining the melamine interlayer within a plurality of cells, which is conducive to enhancing the tensile or bending resistance of the overall shoe upper, avoiding the problem of large-area fracture of the melamine interlayer, and helping to increase the service life of the insulating shoes; optionally, considering that the inner surface of the shoe upper needs to contact the human foot, the indentation is formed on the outer surface of the shoe upper, which is conducive to reducing the user's foreign body sensation and enhancing the user's wearing comfort. The provision of the indentations is conducive to improving the connection stability of the first composite layer, the melamine interlayer and the second composite layer.
[0018] According to some embodiments of the present invention, a plurality of indentations are arranged in a staggered manner to form a plurality of cells.
[0019] Specifically, multiple indentations are arranged in a staggered manner to form multiple cells, thereby separating and confining the melamine interlayer within multiple cells, which is beneficial to enhancing the tensile or bending resistance of the overall upper, and is beneficial to enhancing the limiting effect on the melamine cotton in each cell, avoiding the problem of large-scale fracture of the melamine interlayer, and is beneficial to increasing the service life of the insulating shoes.
[0020] According to some embodiments of the present invention, the cells are square, diamond or circular.
[0021] Specifically, considering the different arrangements of the indentations, the cells may be square, diamond or circular to meet the individual needs of different users.
[0022] According to some embodiments of the present invention, the first composite layer is made of skin-friendly material; and / or,
[0023] The second composite layer is made of waterproof material.
[0024] Optionally, considering that the first composite layer needs to be in contact with the human foot, the first composite layer may be made of skin-friendly material to enhance the user's wearing comfort; optionally, considering that the second composite layer is the exposed layer or appearance layer of the upper, the second composite layer may be made of waterproof material to reduce the risk of rainwater entering the cavity.
[0025] According to some embodiments of the present invention, an adhesive layer is provided between the melamine interlayer and the first composite layer or the second composite layer.
[0026] Specifically, an adhesive layer is provided between the melamine interlayer and the first composite layer or the second composite layer, that is, the melamine interlayer can be connected to the first composite layer or the second composite layer through the adhesive layer, which is beneficial to enhance the connection stability of the upper and improve the service life of the heat-insulating shoes.
[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:
[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of heat-insulating shoes according to an embodiment of the utility model;
[0030] Figure 2 This is a schematic diagram of the unfolded structure of the upper of the heat-insulating shoes according to one embodiment of the utility model;
[0031] Figure 3 It is a schematic diagram of the unfolded structure of the upper of the heat-insulating shoes of another embodiment of the utility model;
[0032] Figure 4 The figure is a schematic diagram of the layer structure of the upper of a heat-insulating shoe according to an embodiment of the utility model.
[0033] Figure Number:
[0034] 100, upper; 110, first composite layer; 120, melamine interlayer; 130, second composite layer; 140, cell; 150, indentation; 151, air vent;
[0035] 200, soles; DETAILED DESCRIPTION
[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0037] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0038] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0040] Reference Figures 1 to 4 As shown, a heat-insulating shoe according to an embodiment of the present invention comprises: an upper 100 and a sole 200 .
[0041] Reference Figure 1 and Figure 4 As shown, the upper 100 includes a first composite layer 110, a melamine interlayer 120 and a second composite layer 130. The first composite layer 110, the melamine interlayer 120 and the second composite layer 130 are stacked and connected in sequence from the inside to the outside, that is, the first composite layer 110 is connected to the inner surface of the melamine interlayer 120, the first composite layer 110 needs to contact the human foot, and the second composite layer 130 is the appearance surface of the insulating shoe.
[0042] Reference Figure 1 and Figure 4 As shown, the upper 100 is connected to the periphery of the sole 200 to jointly enclose a cavity that can be worn by a human foot.
[0043] Reference Figure 1 and Figure 4 As shown, the heat-insulating shoes use a melamine interlayer 120 to form an upper 100. Specifically, the upper 100 includes a first composite layer 110, a melamine interlayer 120 and a second composite layer 130 which are sequentially connected from the inside to the outside, that is, the melamine interlayer 120 is sandwiched between the first composite layer 110 and the second composite layer 130. The heat-insulating and thermal-preserving properties of the melamine interlayer 120 are utilized to enhance the heat-insulating properties of the shoes. The melamine interlayer 120 has the characteristic of low bulk density, which is beneficial to taking into account the overall thickness and weight of the upper 100 to enhance the wearing experience of the user.
[0044] It should be noted that low bulk density refers to a smaller mass per unit volume. Bulk density is a measure of the relationship between the density and weight of a substance. Materials with low bulk density usually have lower density and weight, and therefore have the characteristic of being light.
[0045] Reference Figure 1 and Figure 4 As shown, the heat-insulating shoes are compounded by the first composite layer 110 and the second composite layer 130, which is beneficial to enhancing the tensile fracture resistance of the upper 100, limiting the excessive deformation of the melamine interlayer 120, reducing or avoiding the defect of the melamine interlayer 120 being fractured due to the bending of the upper 100, so that the melamine sponge can be applied to the upper 100.
[0046] Reference Figure 1 and Figure 4 As shown, compared with ordinary sponges, melamine has the characteristics of anti-oxidation and can be used for a long time without turning yellow, which is beneficial to delaying the time of oxidation, yellowing and aging of shoes, so as to improve the appearance of the heat-insulating shoes.
[0047] Reference Figure 1 As shown, it is understandable that the elongation at break of the first composite layer 110 or the second composite layer 130 is less than the elongation at break of the melamine interlayer 120. The heat-insulating shoe can limit the elongation of the melamine interlayer 120 through the material properties of the first composite layer 110 or the second composite layer 130, and by limiting the elongation of the melamine interlayer 120, the defect of the melamine interlayer 120 being broken due to bending and stretching of the upper 100 is reduced or avoided, which is beneficial to improving the service life of the heat-insulating shoe.
[0048] When the upper 100 is continuously subjected to tension, since the elongation at break of the first composite layer 110 or the second composite layer 130 is less than the elongation at break of the melamine interlayer 120, when the upper 100 is continuously stretched, the first composite layer 110 or the second composite layer 130 breaks first, and then the melamine interlayer 120 breaks. The heat-insulating shoe utilizes the difference between the elongation at break of the first composite layer 110 or the second composite layer 130 and the elongation at break of the melamine interlayer 120, and limits the elongation of the melamine interlayer 120 through the material properties of the first composite layer 110 and the second composite layer 130, thereby alleviating or avoiding the defect of the melamine interlayer 120 breaking due to excessive bending or stretching, which is beneficial to improving the service life of the heat-insulating shoe.
[0049] It should be noted that the elongation at break is the ratio of the elongation of the sample when it is stretched to break to the original length. For example, if a sponge with an original length of 1 meter is stretched to break, the elongation of the sponge is 30 cm. At this time, the ratio of the elongation to the original length is multiplied by 100%, and the elongation at break is 30%.
[0050] It is understandable that, considering that the first composite layer 110 needs to be in contact with the human foot, the first composite layer 110 can be made of skin-friendly material to enhance the wearing comfort of the user. For example, the first composite layer 110 can be made of skin-friendly material such as cotton and silk.
[0051] It is understandable that, considering that the second composite layer 130 is an exposed layer or appearance layer of the upper 100, the second composite layer 130 can be made of waterproof material to reduce the risk of rainwater entering the cavity. For example, the second composite layer 130 can be made of waterproof material such as polyester coated fabric and nylon coated fabric.
[0052] Reference Figure 2 and Figure 3 As shown, it can be understood that a plurality of indentations 150 are pressed on the upper 100, and the upper 100 is divided into a plurality of cells 140 along the indentations 150. The upper 100 is pressed with a plurality of indentations 150, and the arrangement of the indentations 150 is conducive to improving the connection stability of the first composite layer 110, the melamine interlayer 120, and the second composite layer 130. The upper 100 is divided into a plurality of cells 140 along the indentations 150, thereby separating and confining the melamine interlayer 120 in the plurality of cells 140, which is conducive to enhancing the tensile strength or bending resistance of the overall upper 100, avoiding the problem of large-area fracture of the melamine interlayer 120, and is conducive to improving the service life of the heat-insulating shoes.
[0053] Reference Figure 2 and Figure 3 As shown, it can be understood that the multiple indentations 150 are staggered to form a plurality of cells 140, thereby dividing the melamine interlayer 120 into a plurality of units, which is beneficial to enhancing the tensile or bending resistance of the overall upper 100, and is beneficial to enhancing the restrictive effect on the melamine cotton in each cell 140, avoiding the problem of large-area fracture of the melamine interlayer 120, and is beneficial to improving the service life of the insulating shoes.
[0054] Reference Figure 2 and Figure 3 As shown, specifically, considering the different arrangements of the indentations 150 , the cells 140 may be square, diamond or circular to meet the personalized needs of different users.
[0055] Reference Figure 2 As shown, specifically, taking a complete diamond-shaped cell 140 as an example, the boundary of the cell 140 is surrounded by four indentations 150 that are staggered and connected, which is beneficial to enhancing the limiting effect on the melamine cotton in each cell 140, avoiding the problem of large-area fracture of the melamine interlayer 120, and is beneficial to improving the service life of the insulating shoes.
[0056] Reference Figure 2 and Figure 3 As shown, it is understandable that, considering the air permeability of the upper 100, the upper 100 is further provided with a plurality of air holes 151 at the indentation 150. The setting of the air holes 151 can connect the cavity with the external atmosphere, which is beneficial to alleviate the condition of stuffy feet in the insulating shoes and avoid the problem of athlete's foot after users wear the insulating shoes for a long time.
[0057] Reference Figure 2As shown, specifically, the upper 100 is provided with two rows of air holes 151 at each indentation 150. The setting of the air holes 151 can connect the cavity with the external atmosphere, which is beneficial to alleviate the condition of stuffy feet in the insulating shoes and avoid the problem of athlete's foot after users wear the insulating shoes for a long time.
[0058] It is understandable that, considering that the inner surface of the upper 100 needs to contact the human foot, the indentation 150 formed on the outer surface of the upper 100 is conducive to reducing the user's foreign body sensation and enhancing the user's wearing comfort. The setting of the indentation 150 is conducive to improving the connection stability of the first composite layer 110, the melamine interlayer 120 and the second composite layer 130.
[0059] Specifically, when making the upper 100, workers can first laminate the first composite layer 110, the melamine interlayer 120 and the second composite layer 130, and then use the ultrasonic embossing process to form the indentations 150 and the air holes 151 under the rolling action of the embossing roller, and enhance the connection stability of the first composite layer 110, the melamine interlayer 120 and the second composite layer 130.
[0060] It should be noted that the ultrasonic embossing process can be completed using an ultrasonic embossing machine, which uses high-frequency oscillation to transmit sound waves from the welding head to the welding surface of the workpiece, instantly causing the molecules of the workpiece to produce friction and reach the melting point, thereby completing the rapid dissolution of the solid material and completing the welding.
[0061] It should be understood that in some other embodiments, an indentation 150 is provided on the inner surface or the outer surface of the upper 100. The provision of the indentation 150 is conducive to improving the connection stability of the first composite layer 110, the melamine interlayer 120 and the second composite layer 130. The upper 100 is divided into a plurality of cells 140 along the indentation 150, thereby separating and confining the melamine interlayer 120 within the plurality of cells 140, which is conducive to enhancing the tensile strength or bending resistance of the overall upper 100, avoiding the problem of large-area fracture of the melamine interlayer 120, and is conducive to improving the service life of the insulating shoes.
[0062] It is understandable that, in this embodiment, an adhesive layer is provided between the melamine interlayer 120 and the first composite layer 110 or the second composite layer 130. That is, the melamine interlayer 120 can be connected to the first composite layer 110 or the second composite layer 130 through the adhesive layer, which is beneficial to enhance the connection stability of the upper 100 and improve the service life of the heat-insulating shoe.
[0063] When manufacturing the upper 100 , the user may spray adhesive on the melamine interlayer 120 and then adhere the first composite layer 110 or the second composite layer 130 to the melamine interlayer 120 , thereby preliminarily achieving the connection between the melamine interlayer 120 and the first composite layer 110 or the second composite layer 130 .
[0064] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A heat-insulating shoe, characterized in that: include: A shoe upper (100) comprising a first composite layer (110), a melamine interlayer (120) and a second composite layer (130), wherein the first composite layer (110) is connected to the inner surface of the melamine interlayer (120), and the second composite layer (130) is connected to the outer surface of the melamine interlayer (120); The sole (200) is connected to the upper (100) to jointly form a cavity for the foot to wear.
2. The heat-insulating shoes according to claim 1, characterized in that: The elongation at break of the first composite layer (110) or the second composite layer (130) is less than the elongation at break of the melamine interlayer (120).
3. The heat-insulating shoes according to claim 1, characterized in that: A plurality of indentations (150) are pressed onto the shoe upper (100), and the shoe upper (100) is divided into a plurality of cells (140) along the indentations (150).
4. The heat-insulating shoes according to claim 3 are characterized in that: The shoe upper (100) is provided with a plurality of ventilation holes (151) at the indentation (150).
5. The heat-insulating shoes according to claim 4, characterized in that: The shoe upper (100) is provided with two rows of ventilation holes (151) at each of the indentations (150).
6. The heat-insulating shoes according to claim 3, characterized in that: The indentations (150) are provided on both the inner surface and the outer surface of the shoe upper (100); and / or, The indentation (150) is formed on the outer surface of the shoe upper (100).
7. The heat-insulating shoes according to claim 3 are characterized in that: The plurality of indentations (150) are arranged in a staggered manner to form a plurality of cells (140).
8. The heat-insulating shoes according to claim 7, characterized in that: The unit cell (140) is in the shape of a square, a diamond or a circle.
9. The heat-insulating shoes according to claim 1, characterized in that: The first composite layer (110) is made of skin-friendly material; and / or, The second composite layer (130) is made of waterproof material.
10. The heat-insulating shoes according to claim 1, characterized in that: An adhesive layer is provided between the melamine interlayer (120) and the first composite layer (110) or the second composite layer (130).