Heelpiece mould pressing device and shoes thereof

Abstract

The invention relates to the technical field of shoemaking, and discloses a die-pressing heel device and a shoe thereof, the die-pressing heel device comprises an upper part, an insole part, a midsole part, a sole part and a nest-shaped structure, the upper part is composed of a welt and a heel part behind the welt, the nest-shaped structure comprises a heel nest and a skin material, and the nest-shaped structure comprises an upper end part, a middle part and a lower part. The surface materials are attached to the outer faces and the back faces of the two sides of the heel nest in a gluing mode, the bottom of each surface material extends out of the bottom of the heel nest to form a lower hem part, and when the upper end of each nest-shaped structure is treaded by a heel, the heel can slide down along a sliding way formed by the inclined upper end and the two bent sides of the upper end of each nest-shaped structure. Through the smooth middle part and the smooth lower part, the shoe wearing action can be completed without the assistance of hands, and when the heel slides into the lower part, the middle part can clamp the heel, so that the heel is not easy to fall off.

Description

Technical Field

[0001] The present invention relates to the field of footwear design, and particularly to a molded heel device and a shoe thereof, which are particularly suitable for the elderly and those with limited mobility. Background Art

[0002] The design of traditional shoes often requires the user to bend down or manually assist when wearing them. Especially for the elderly, pregnant women, those with back problems, children who are too late to put on shoes, and people with limited mobility, this way of putting on shoes is particularly inconvenient and laborious.

[0003] For example, a footwear article provided in Application No. CN202290000225 includes a heel cup that is attached to the upper and extends from the sole structure to at least a part of the rear heel collar of the upper. The heel cup is uniformly molded with an upper part, a middle part, and a lower part, and the upper part has an inner - outer length smaller than that of the middle part, and the middle part and the lower part form a concave structure configured to receive the heel. When the user wears the footwear, the upper part can deform from a first configuration to a second configuration under the load of the user's foot. In the second configuration, at least a part of the upper part is lowered relative to the first configuration and can return to the first configuration after the load on the user's foot is removed. The middle part includes a peripheral part that is thicker than the central part.

[0004] Although this heel cup with a special shape and structure can produce some shoes that are convenient to wear, the workmanship is complex, which is not conducive to popularization and application, and lacks practical value. Therefore, it is of great significance to design a shoe with a simple structure, low cost, convenient use, and strong adaptability, which can be put on without bending down and without manual assistance. Summary of the Invention

[0005] The purpose of the present invention is to provide a molded heel device and a shoe thereof. Through reasonable design, the user can easily put on the shoes without bending down and without using hands, thereby improving the convenience and comfort of wearing shoes.

[0006] To achieve the above - mentioned purpose, the present invention provides the following technical solution: A molded heel device and a shoe thereof. The shoe includes a shoe upper part composed of a shoe mouth and the subsequent shoe back part, an insole part, a mid - sole part, a shoe sole part, and a nest - shaped structure.

[0007] Preferably, the nest - shaped structure includes a heel nest and a skin material.

[0008] Preferably, the nest - shaped structure includes an upper end part, a middle part, and a lower part.

[0009] Preferably, the upper part of the upper end portion inclines backward, the highest point of the back does not exceed the vertical line of the most prominent point of the back of the entire nest-shaped structure, and both left and right sides bend forward, with the thickness increasing gradually from top to bottom.

[0010] Preferably, the middle part includes the thickest central part and two slightly thinner peripheral parts above and below. Both left and right sides bend forward, and the upper peripheral part smoothly transitions to the upper end portion.

[0011] Preferably, the lower part is a semi-circular shape imitating the shape of the heel, which smoothly transitions to the lower peripheral part of the middle part, forming a chamber for wrapping the heel.

[0012] Preferably, the inner arc of the middle part of the nest-shaped structure when viewed from above is greater than the inner arc of the upper end portion when viewed from above.

[0013] Preferably, for the nest-shaped structure, the horizontal width of the lower part is greater than that of the middle part.

[0014] Preferably, for the nest-shaped structure, it gradually thins from the vertical center line to the edge, and for the lower part, it gradually thins from top to bottom.

[0015] According to some embodiments of the present invention, when the upper end portion of the nest-shaped structure is stepped on by the heel, the heel can slide down along the slideway formed by the inclined upper end portion and its curved sides on both sides. At this time, due to the squeezing of the foot, the shoe mouth expands. The heel slides smoothly through the middle part and slides into the lower part, enabling the shoe-wearing action to be completed without the assistance of hands. When the heel slides into the lower part, the expansion force acting on the shoe mouth will disappear instantly, and at the same time, the shoe mouth will instantly return to its original shape due to the resilience. This design enables the middle part to hold the heel firmly, making it difficult to pull out, thus achieving the effect that the shoes are not easily fallen off.

[0016] Preferably, the heel nest is made by pressing and combining EVA and other plastic foaming materials through a steel mold.

[0017] According to some embodiments of the present invention, the plastic foaming material can be first compounded with the skin material and directly molded into the nest-shaped structure.

[0018] Preferably, the skin material is a tissue with certain toughness and elasticity, such as fabric or leather material. Its function is to reinforce the heel nest, making it not easily break and deform, and at the same time, it also plays a role in strengthening the connection between the nest-shaped structure and the shoe body.

[0019] Preferably, the skin material is attached to the outside and back of both sides of the heel nest by means of gluing, and the bottom extends beyond the bottom of the heel nest to form a hem part.

[0020] Preferably, in the method of pulling the upper to make shoes, the nest-shaped structure is located between the upper material and the lining material at the back part of the upper. When pulling the upper and lasting, the lower hem part together with the turn-up is pulled to the middle bottom and fixed.

[0021] According to some other embodiments of the present invention, in the method of lasting the upper to make shoes, the nest-shaped structure is located between the upper material and the lining material at the back part of the upper. When sewing the middle bottom, the lower hem part together with the turn-up is sewn and fixed.

[0022] According to some other embodiments of the present invention, wrapping the nest-shaped structure with a buffer material such as sponge laminated on the back of an elastic fabric and fixing it inside the back part of the shoe near the shoe mouth by sewing can also achieve the effect of directly stepping into the shoe without the assistance of hands.

[0023] Preferably, the nest-shaped structure is suitable for shoes made by various shoe-making processes, including but not limited to: gluing process, sewing process, molding process, injection molding process, vulcanization process, Goodyear process, covering process, etc. These manufacturing processes can be selected according to the characteristics of materials, the availability of production equipment and different production requirements, as long as the nest-shaped structure can be effectively fixed inside the shoe, the effect of easy wearing and not easy to fall off can be achieved.

[0024] Preferably, the nest-shaped structure is particularly suitable for the elderly, the disabled, children who have no time to lift the shoes and other people who cannot conveniently bend down to put on shoes. By putting this device into various daily shoes, the convenience and comfort of putting on shoes can be significantly improved. At the same time, due to the cuttable design of the middle sole plate, this device can adapt to various types and sizes of shoes and has a wide application prospect. Brief Description of the Drawings

[0025] Figure 1 is a schematic structural view of a molded heel device and a shoe thereof according to the present invention.

[0026] Figure 2 is a perspective view of a molded heel device according to the present invention.

[0027] Figure 3 is a side structural view of a molded heel device according to the present invention.

[0028] Figure 4 is a longitudinal sectional view of the central line on the back of the heel part of a molded heel device according to the present invention.

[0029] Figure 5 is a top view of a molded heel device according to the present invention.

[0030] Figure 6 is a bottom view of a molded heel device according to the present invention.

[0031] Figure 7 It is a schematic structural diagram of a shoe equipped with a molded heel device of the present invention.

[0032] Reference numerals: shoe 1, upper part 11, shoe opening 110, rear upper 111, insole part 12, midsole 13, outsole 14, nest-shaped structure 150, upper end part 151, middle part 152, lower part 153, lower pendulum part 154, skin material 1500, heel nest 1600, central part 1602, peripheral part 1603. Specific embodiments

[0033] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0034] In Embodiment 1 of the present invention, as Figure 1 , Figure 6 shown, the shoe 1 equipped with a molded heel device of the present invention includes an upper part 11 composed of a shoe opening 110 and the subsequent rear upper 111, an insole part 12, a midsole 13, an outsole 14, and a nest-shaped structure 150.

[0035] In this embodiment, as Figure 2 , Figure 3 , Figure 4 , Figure 5 shown, the nest-shaped structure 150 includes a heel nest 1600 and a skin material 1500.

[0036] In this embodiment, as Figure 3 shown, the nest-shaped structure 150 includes an upper end part 151, a middle part 152, and a lower part 153.

[0037] In this embodiment, as Figure 2 , Figure 3 , Figure 4 shown, the upper end part 151 of the nest-shaped structure 150 slopes backward at the upper part, the highest point of the back does not exceed the vertical line of the most prominent point of the back of the entire nest-shaped structure 150, and the left and right sides are bent forward, and the thickness gradually increases from top to bottom. The upper end part 151 of the nest-shaped structure 150 is designed to slope backward to adapt to the natural curvature of the human heel. This design can effectively fit the foot and improve the wearing comfort. The highest point of the back is located within the vertical line of the most prominent point of the back of the entire nest-shaped structure 150, so that the rear upper of the shoe does not tilt backward too much, ensuring the overall beauty and stability of the shoe. The above structure cooperates with the shape of the left and right sides bent forward to form a slideway into the shoe at the upper end part 151.

[0038] In this embodiment, as Figure 2 , Figure 3 , Figure 4As shown, the upper part 151 slopes backward at the upper portion. The highest point on the back does not exceed the vertical line of the most prominent point on the back of the entire nest-shaped structure 150. The left and right sides curve forward, and the thickness gradually increases from top to bottom. The upper part 151 of the nest-shaped structure 150 is designed to slope backward, cooperating with the shape of the left and right sides curving forward, so that the upper part 151 forms a chute into the shoe, which allows the heel to slide into the shoe more easily. The highest point on the back is within the vertical line of the most prominent point on the back of the entire nest-shaped structure 150, preventing the back of the shoe from tilting backward too much and ensuring the overall beauty and stability of the shoe. In addition, the lower part of the upper part 151 and the peripheral part 1603 of the upper part of the central part 1602 have a smooth transition, which makes the nest-shaped structure fit the shape of the foot better, providing good support and comfort. The design of sloping backward and gradually increasing thickness can effectively prevent the heel from slipping out, while the smooth transition structure avoids friction and discomfort on the foot, enhancing the overall wearing experience.

[0039] In this embodiment, as Figure 4 shown, the middle part 152 includes the thickest central part 1602 and two slightly thinner peripheral parts above and below. The left and right sides curve forward, and the upper peripheral part has a smooth transition with the upper part 151. This design aims to hook the heel after putting on the shoe to prevent the shoe from falling off. Such a design makes the shoe fit the foot contour better, enhancing the wrapping and fixing properties and solving the problem of the shoe not fitting well.

[0040] In this embodiment, as Figure 2 , Figure 3 , Figure 4 shown, the lower part 153 is a semi-circular shape imitating the shape of the heel, which has a smooth transition with the lower peripheral part 1603 of the middle part 152, forming a chamber that wraps the heel. The semi-circular lower part 153 can better fit the natural shape of the heel, reducing wear and discomfort and improving the wearing comfort. The overall smooth transition design avoids local pressure points, evenly distributes the foot force, and further enhances the comfort and durability of the shoe.

[0041] In this embodiment, as Figure 5 shown, the inner arc of the middle part 152 of the nest-shaped structure 150 is larger than the inner arc of the upper part 151. Such a design not only enhances the support force of the middle part 152 but also makes the shoe hook the heel better when worn, preventing the shoe from falling off, improving the wrapping and fixing properties of the shoe, and solving the problem of the shoe not fitting well. By optimizing the inner arc, better fit and comfort are achieved, evenly distributing the foot pressure, reducing fatigue and discomfort, and enhancing the overall wearing experience and durability.

[0042] In this embodiment, as Figure 1As shown, the lower part 153 of the nest-shaped structure 150 has a greater horizontal width than the middle part 152, aiming to better fit the shape of the heel. This design not only enhances the wrapping and fixation of the shoes, but also provides better comfort and stability. By precisely fitting the shape of the heel, the shoes can more firmly fix the feet when worn, preventing slipping and falling off, and improving the safety and comfort of wearing. At the same time, the optimized shape design also helps to evenly disperse the foot pressure, reduce fatigue and discomfort, and further improve the overall performance and durability of the shoes.

[0043] In this embodiment, as Figure 2 , Figure 4 , Figure 5 shown, the nest-shaped structure 150 gradually thins from the vertical center line to the edge, and the lower part gradually thins from top to bottom. This design aims to make the edge part more naturally combine with the shoe body while maintaining the overall structure firm and stable, avoiding the appearance of edges or exposed parts. Through the gradually thinning design, the protrusion of the shoe appearance caused by the internal nest-shaped structure 150 is effectively eliminated, making the appearance of the shoes more smooth and natural. This optimized structure not only improves the aesthetics of the shoes, but also enhances the comfort and safety of wearing, avoiding discomfort or friction caused by protrusions, thus improving the overall user experience.

[0044] In this embodiment, when the experimenter wears the shoes, when the upper part 151 of the nest-shaped structure 150 is stepped on by the heel, the heel can slide down along the slideway formed by the inclined upper part 151 and its curved sides. At this time, due to the squeezing of the foot, the shoe mouth 110 expands, and the heel smoothly slides over the middle part 152 and finally enters the lower part 153. In this way, the shoe-wearing action can be completed without hand assistance. When the heel slides into the lower part 153, the expansion force acting on the shoe mouth 110 will disappear instantly, and the shoe mouth 110 will instantly return to its original shape due to the resilience. This design enables the middle part 152 to hold the heel firmly and makes it difficult to pull out, thus achieving the effect that the shoes are not easy to fall off. This design not only improves the convenience of wearing shoes, but also enhances the wrapping and stability of the shoes, and improves the comfort and safety of wearing.

[0045] In this embodiment, the heel nest 1600 structure is made by pressing and combining plastic foaming materials such as EVA with a steel mold. Suitable plastic foaming materials for molding also include PU (polyurethane), TPU (thermoplastic polyurethane), PE (polyethylene), rubber foaming materials, and EVA mixed materials. Using the die-casting process to make the heel nest 1600 structure can improve the production accuracy and consistency, ensuring that the quality of each pair of shoes is the same. This process also improves production efficiency and output, thereby reducing production costs. Overall, the die-casting technology not only improves the performance and durability of the shoes, but also makes the manufacturing process more efficient and economical.

[0046] In some other embodiments of the present invention, the plastic foam material is first laminated with the skin material 1500 and then directly molded into the nest-shaped structure 150. This method not only simplifies the manufacturing process but also further improves the durability and comfort of the structure. The application of the laminated skin material 1500 makes the structure of the heel nest 1600 more aesthetically pleasing while enhancing the overall strength and protective performance of the material. Through this molding process of the composite material, the precise forming of the nest-shaped structure 150 can be ensured, improving the accuracy and consistency of production, thus enhancing production efficiency and reducing costs.

[0047] In this embodiment, the skin material 1500 is a fabric or leather material with a certain toughness and elasticity. Its function is to reinforce the heel nest 1600 so that it is not easily broken or deformed, and at the same time, it also plays a role in strengthening the connection between the nest-shaped structure 150 and the shoe body. This design not only enhances the structural strength and durability of the heel nest 1600 but also improves the overall stability and service life of the shoes. The application of the skin material 1500 makes the heel nest 1600 more comfortable, and at the same time provides additional support and protection, enabling the shoes to maintain excellent performance and wearing experience in various usage scenarios.

[0048] In some other embodiments of the present invention, the skin material 1500 is a leather material with a certain toughness and elasticity, which can also play a role in reinforcing the heel nest 1600 so that it is not easily broken or deformed, and at the same time, it strengthens the connection between the nest-shaped structure 150 and the shoe body. This design not only improves the structural strength and durability of the heel nest 1600 but also enhances the overall stability and service life of the shoes. The application of the leather material makes the heel nest 1600 more solid and durable, and at the same time provides additional support and protection, enabling the shoes to maintain excellent performance and comfortable wearing experience in various usage scenarios.

[0049] In this embodiment, the skin material 1500 is attached to the outer and back sides of both sides of the heel nest 1600 by means of gluing, and at the same time, the bottom extends beyond the bottom of the heel nest 1600 to form the lower swing part 154. This lower swing part 154 is designed to fix the connection part between the heel nest 1600 structure and the shoe body. This design not only strengthens the connection between the heel nest 1600 and the shoe body, ensuring the firmness and stability of the structure, but also improves the overall texture and aesthetic appearance of the shoes. Through the gluing method, the skin material 1500 is closely attached to the two sides and the back of the heel nest 1600, ensuring the durability and comfort of the shoes. The design of the lower swing part 154 not only provides additional support and protection but also ensures the tight connection between the heel nest 1600 and the shoe body, providing a more stable and comfortable wearing experience for users.

[0050] In this embodiment, the nest-shaped structure 150 is applied to the lasting method of shoe-making. In this shoe-making method, the nest-shaped structure 150 is located between the upper material and the lining material at the back part of the upper 11. When lasting and pulling the upper, the lower pendulum part 154 and the turn-in are pulled to the mid-sole 13 together and fixed. This step ensures the tight connection between the nest-shaped structure 150 and the upper 11, enhancing the structural stability and durability of the whole shoe. By fixing the lower pendulum part 154 and the turn-in to the mid-sole 13 during the lasting process of shoe-making, the reliable fixation of the nest-shaped structure 150 is achieved, thus ensuring the comfort and stability of the shoe.

[0051] In Embodiment 2 of the present invention, the nest-shaped structure 150 is applied to the closing method of shoe-making. In this shoe-making method, the nest-shaped structure 150 is located between the upper material and the lining material at the back part of the upper 11. When sewing the mid-sole 13, the lower pendulum part 154 and the turn-in are fixed together by stitches. This step ensures the firm connection between the nest-shaped structure 150 and the upper 11, improving the structural stability and durability of the whole shoe. By fixing the lower pendulum part 154 and the turn-in together by stitches during the closing process of shoe-making, the reliable fixation of the nest-shaped structure 150 is achieved, thus ensuring the comfort and stability of the shoe.

[0052] In Embodiment 3 of the present invention, as Figure 7 shown, a buffer material such as elastic fabric back-composite sponge is used to wrap the nest-shaped structure 150. This design is fixed by stitching on the inner side of the shoe upper near the shoe opening 110 in the direction of the back part of the shoe. Such a design enables the shoe to achieve the effect of being directly put on by foot without hand assistance. The application of the elastic fabric back and buffer materials such as sponge provides extra softness and comfort, while ensuring a good fit between the shoe and the foot. By fixing the nest-shaped structure 150 on the inner side of the shoe, a more convenient wearing experience can be achieved for different styles, bringing greater convenience and selectivity to the shoe style design.

[0053] The results of many embodiments of the present invention show that the nest-shaped structure 150 is suitable for shoes made by various shoe-making processes, including but not limited to: gluing process, sewing process, molding process, injection molding process, vulcanization process, Goodyear process, covering process, etc. These manufacturing processes can be selected according to the characteristics of materials, the availability of production equipment and different production requirements, as long as the nest-shaped structure 150 can be effectively fixed inside the shoe, the effect of easy wearing and not easy falling off can be achieved.

[0054] The results of many embodiments of the present invention show that shoes made using the nest-shaped structure 150 are particularly suitable for the elderly, people with limited mobility, children who are too late to put on shoes, and other people who cannot conveniently bend down to put on shoes. By placing this device in various daily shoes, the convenience and comfort of putting on shoes can be significantly improved. At the same time, due to the cuttable design of the midsole, this device can adapt to various types and sizes of shoes, and has broad application prospects.

[0055] The above are the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A molded heel device, characterized in that, It includes a nest-shaped structure; The nest-shaped structure includes a heel nest and an epidermal material; The nest-shaped structure includes an upper part, a middle part, and a lower part; The upper part slopes backward at the upper part, the highest point on the back does not exceed the vertical line of the most prominent point on the back of the entire nest-shaped structure, and both left and right sides curve forward, and the thickness gradually increases from top to bottom; The middle part includes the thickest central part and two slightly thinner peripheral parts above and below. Both left and right sides curve forward, and the upper peripheral part smoothly transitions to the upper part; The lower part is a semi-circular shape imitating the shape of the heel, and smoothly transitions to the lower peripheral part of the middle part, forming a chamber that wraps the heel; For the middle part, the inner arc when viewed from above is greater than the inner arc of the upper part when viewed from above; For the lower part, the horizontal width is greater than that of the middle part; For the nest-shaped structure, it gradually thins from the vertical center line to the edge; For the lower part, it gradually thins from top to bottom; The epidermal material is attached to the outer and back sides of both sides of the heel nest by an adhesive method, and the bottom extends beyond the bottom of the heel nest to form a hem part; The epidermal material is a tissue with a certain toughness and elasticity; For the nest-shaped structure, when the upper part is stepped on by the heel, the heel can slide down along the slideway formed by the inclined upper part and its curved sides on both sides, pass through the smooth middle part, and slide into the lower part, enabling the shoe-wearing action to be completed without the assistance of hands; For the nest-shaped structure, when the heel slides into the lower part, the middle part will hold the heel in place and make it not easy to fall off.

2. A molded heel device according to claim 1, wherein: The nest-shaped structure is made by pressing with a steel mold.

3. A shoe having a molded heel device, wherein: The shoe includes a shoe upper part, an insole part, a midsole part, a shoe sole part, and the nest-shaped structure according to claim 1; For the nest-shaped structure, in the method of lasting and pulling the shoe upper, the nest-shaped structure is located between the upper material and the lining material of the back part of the shoe upper part. When lasting and pulling the upper, the hem part is pulled together with the turn-in to the midsole part and fixed.

4. A shoe having a molded heel device, wherein: The shoe includes a shoe upper part, an insole part, a midsole part, a shoe sole part, and the nest-shaped structure according to claim 1; For the nest-shaped structure, in the method of closing the shoe upper, the nest-shaped structure is located between the upper material and the lining material of the back part of the shoe upper part. When sewing the midsole part, the hem part is sewn and fixed together with the turn-in.

5. A shoe having a molded heel device, wherein: The shoe includes a shoe upper part, an insole part, a midsole part, a shoe sole part, and the nest-shaped structure according to claim 1; The nest-shaped structure is wrapped with an elastic fabric or other tissue using a buffer material such as sponge on the back, and is fixed to the inner side near the shoe opening of the back part of the shoe by sewing.

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