A light soft elastic rubber sole and a mold thereof

Abstract

The utility model relates to the technical field of shoe sole structure, specifically relates to a light soft elastic rubber shoe sole and mould thereof, the shoe sole includes by upper to lower first surrounding structure, upper layer, intermediate layer and lower layer are sequentially arranged, first surrounding structure is along the circumferential setting of upper layer, intermediate layer includes hollow cylinder, one end of hollow cylinder is linked with upper layer, the other end of hollow cylinder is connected with lower layer, the diameter of hollow cylinder at the forefoot is greater than the hollow cylinder at the heel, the height of hollow cylinder at the forefoot is less than the hollow cylinder at the heel, the diameter of hollow cylinder at the forefoot is greater and shorter, the hollow cylinder diameter at the heel is small and longer, forms the micro slope of the foot bottom structure, and the elasticity and the effect of reducing the load at the forefoot are kept, the supporting force and the elasticity of the heel are improved, and it is more in line with the human motion power habit and the footstep structure.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole structure technology, specifically to a lightweight, soft and elastic rubber shoe sole and its mold. Background Technology

[0002] The sole of a shoe consists of the outsole, midsole, and heel. Its main functions are to protect the feet, prevent slipping, absorb shock, ensure foot comfort, facilitate movement, and reduce the likelihood of sports injuries. Therefore, the sole should be lightweight, wear-resistant, water-resistant, oil-resistant, impact-resistant, elastic, easily adaptable to foot shape, and resistant to deformation after molding. The outsole, in conjunction with the midsole, should also provide slip resistance and ease of stopping.

[0003] Existing technologies improve the elasticity and impact resistance of shoe soles by incorporating foam interlayers or thickening rubber. However, adding foam interlayers reduces the abrasion resistance and other physical properties of the sole, while thickening rubber makes the sole too heavy, hindering movement and wasting a lot of material. Furthermore, due to the properties of rubber, post-processing of soles is difficult, often resulting in simple injection molding or hollow structures. Simple injection molding makes rubber soles hard, with a uniform and uninspired appearance that fails to meet consumer aesthetic demands. Simple hollow structures weaken the original strong cushioning and pressure resistance of rubber soles; the large air pockets cannot provide even support, resulting in a weak sole that cannot provide sufficient support. This can lead to continuous tension in the plantar fascia, inducing plantar fasciitis and causing joint damage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lightweight and soft rubber shoe sole.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a lightweight and soft rubber shoe sole, comprising an upper layer, a middle layer and a lower layer arranged sequentially from top to bottom; the middle layer includes a hollow column, one end of which is connected to the upper layer and the other end of which is connected to the lower layer;

[0006] The diameter of the hollow column located at the forefoot is larger than that of the hollow column located at the heel, and the height of the hollow column located at the forefoot is smaller than that of the hollow column located at the heel.

[0007] It also includes a first enclosing structure, wherein the first enclosing structure, the upper layer, the middle layer and the lower layer are arranged in order from top to bottom, and the first enclosing structure is arranged along the circumference of the upper layer.

[0008] The rubber soles are made of transparent rubber, and colored elastic beads are arranged inside the hollow cylinder.

[0009] The diameter of the hollow column is 8-10 mm.

[0010] The height of the hollow column is 5~12mm.

[0011] The upper layer has at least two hollowed-out arcs along its circumference.

[0012] The hollowed-out arc has at least two connecting bodies in the middle, one end of which is connected to the hollowed-out arc and the other end of which is connected to the lower layer.

[0013] The distance between two adjacent connectors is 1 to 1.5 cm.

[0014] The intermediate layer further includes a second surrounding structure, one end of which is connected to the outer periphery of the upper layer, and the other end of which is connected to the outer periphery of the lower layer.

[0015] Another technical solution adopted by this utility model is: a mold for preparing the above-mentioned lightweight and soft elastic rubber shoe sole includes a first mold and a second mold. The first mold includes an upper mold and a lower mold. The upper mold and the lower mold are fitted together to prepare a first surrounding structure, an upper layer and an intermediate layer. The second mold is used to prepare a lower layer.

[0016] The beneficial effects of this invention are as follows: The lightweight and soft-elastic rubber sole structure of this invention, by setting hollow columns, improves elasticity and support while maintaining a soft and comfortable effect. The hollow columns located at the forefoot have a larger diameter and are shorter, while the hollow columns at the heel have a smaller diameter and are longer, forming a slightly sloping surface that conforms to the foot's structure. This maintains the elasticity of the forefoot and reduces weight-bearing, while improving the support and elasticity of the heel, making it more compatible with human movement habits and foot structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the lightweight and soft rubber sole in a specific embodiment of this utility model;

[0018] Figure 2 This is a top view of the lightweight, soft, and elastic rubber sole in a specific embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional view of the lightweight, soft, and elastic rubber sole without any connecting parts in a specific embodiment of this utility model;

[0020] Figure 4 This is a cross-sectional view of the mold in a specific embodiment of this utility model;

[0021] Figure 5 This is a cross-sectional view of the first mold in a specific embodiment of this utility model;

[0022] Label Explanation:

[0023] 1. First enclosing structure; 2. Upper layer; 21. Hollowed-out arc; 22. Connector; 3. Middle layer; 31. Second enclosing structure; 32. Hollow column; 4. Lower layer;

[0024] 5. First mold; 51. Upper mold; 52. Lower mold; 6. Second mold. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figures 1-3 A lightweight, soft, and elastic rubber sole includes an upper layer, a middle layer, and a lower layer arranged sequentially from top to bottom; the middle layer includes a hollow cylinder, one end of which is connected to the upper layer and the other end of which is connected to the lower layer.

[0027] The diameter of the hollow column located at the forefoot is larger than that of the hollow column located at the heel, while the height of the hollow column located at the forefoot is smaller than that of the hollow column located at the heel.

[0028] As described above, the beneficial effects of this invention are as follows: The rubber sole structure of this invention has multiple upward-opening hollow columns evenly distributed, which can improve the elasticity and support of the sole while maintaining a soft and comfortable effect. The hollow columns located at the forefoot are shorter, while those at the heel are longer, resulting in a slightly sloping upper layer. At this point, the overall thickness of the forefoot is relatively low, and a larger diameter hollow column is used here. The lower its hardness, the less it affects the superior elasticity and weight-reducing effect of the hollow rubber sole. The heel is thicker than the forefoot, requiring higher support and elasticity during exercise. A smaller cylinder diameter is used here, resulting in greater hardness, which is more suitable for human movement habits and foot structure, protecting the wearer's arch health while providing a good wearing experience.

[0029] Furthermore, it also includes a first surrounding structure, wherein the first surrounding structure, the upper layer, the middle layer and the lower layer are arranged sequentially from top to bottom, and the first surrounding structure is arranged circumferentially along the upper layer.

[0030] As can be seen from the above description, the first surrounding structure is designed to facilitate connection with the shoe upper.

[0031] Furthermore, the rubber soles are made of transparent rubber, with colored elastic beads set inside the hollow cylinders.

[0032] As can be seen from the above description, placing colored elastic beads in the transparent sole can not only further improve the elasticity and support of the sole, but also enrich the color and appearance of the sole, satisfying consumers' desire for uniqueness and aesthetic needs.

[0033] Furthermore, the diameter of the hollow cylinder is 8~10mm.

[0034] As can be seen from the above description, if the diameter of the hollow column is too small, the rigidity will be too high, affecting the wearing comfort; if the diameter is too large, the support effect will be poor.

[0035] Furthermore, the height of the hollow column is 5~12mm.

[0036] As can be seen from the above description, if the height of the hollow column is too small or too large, the supporting effect will be poor.

[0037] Furthermore, the wall thickness of the hollow column is 1~1.5mm.

[0038] As can be seen from the above description, if the wall thickness of the hollow column is too thick, the weight will be too heavy, which does not meet the requirements for lightweight design, and the hardness will be too high, affecting the wearing comfort; if the wall thickness is too thin, the support effect will be poor.

[0039] Furthermore, at least two hollowed-out arcs are set along the circumference of the upper layer.

[0040] Furthermore, openwork arcs are set on both sides of the arch of the foot.

[0041] Furthermore, openwork arcs are set on both sides of the arch of the foot.

[0042] Furthermore, the width of the hollowed-out arc is 4~6mm.

[0043] Furthermore, the length of the hollowed-out arc is 1 / 2 to 3 / 5 of the length of the sole.

[0044] As can be seen from the above description, the hollowed-out arc can improve the breathability of the sole and further reduce the weight of the sole.

[0045] The sole has a large curved edge, which is not suitable for a uniform cylindrical shape. Using an arc outline is more suitable for the shape of the sole, maintaining the elasticity of the sole while reducing its weight.

[0046] Furthermore, at least two connecting bodies are provided in the middle of the hollowed-out arc, with one end of the connecting body connected to the hollowed-out arc and the other end of the connecting body connected to the lower layer.

[0047] As described above, because the force on the sole diffuses outward from the inside of the shoe, when downward pressure is applied, the hollowed-out arc section is prone to tilting outward, compromising the stability and load-bearing capacity of the sole. Placing a connector in the middle of the hollowed-out arc can overcome this problem, supporting the main forces on the sole, namely the forces at the heel and forefoot, preventing the second surrounding structure from tilting outward due to excessive force and affecting the stability of the sole.

[0048] Furthermore, the distance between two adjacent connectors is 1~1.5cm.

[0049] As can be seen from the above description, if the spacing between two adjacent connecting parts is too close, it will weaken the soft elasticity of the sole; if it is too far apart, it will not be able to bear pressure.

[0050] Furthermore, the thickness of the connector is 1~2mm.

[0051] As can be seen from the above description, if the connecting body is too thick, it will weaken the soft elasticity of the sole; if it is too thin, it will not be able to bear pressure.

[0052] Furthermore, when the hollowed-out arc is set on both sides of the arch of the foot, the connecting body is set close to the heel.

[0053] As can be seen from the above description, the connector is positioned closer to the heel, where more flexibility is needed.

[0054] Furthermore, the intermediate layer also includes a second surrounding structure, one end of which is connected to the outer periphery of the upper layer, and the other end of which is connected to the outer periphery of the lower layer.

[0055] As described above, the second enclosing structure, while bearing some load, prevents impurities from entering the sole and affecting its performance. The second enclosing structure, together with the outer surface of the hollow cylinder, forms an air pocket, enhancing the sole's elasticity and comfort. The second enclosing structure connects the lower and upper layers of the sole, and further connects the first enclosing structure to the upper, thus enhancing the sole's tensile strength and tear resistance.

[0056] Furthermore, the wall thickness of the second enclosure structure is 1~1.5mm.

[0057] Furthermore, the outer periphery of the lower layer protrudes upward and connects with the second surrounding structure.

[0058] Furthermore, the outer surface of the lower layer is decorated with anti-slip patterns.

[0059] Please refer to Figure 4 and 5 Another technical solution adopted by this utility model is: a mold for preparing the above-mentioned lightweight and soft rubber shoe sole includes a first mold and a second mold. The first mold includes an upper mold and a lower mold. The upper mold and the lower mold are fitted together to prepare a first surrounding structure, an upper layer and an intermediate layer. The second mold is used to prepare a lower layer.

[0060] As can be seen from the above description, the first mold is used to prepare the first surrounding structure, the upper layer and the middle layer, and the second mold is used to prepare the lower layer. When the material in the mold is basically formed but not completely solidified, the lower mold of the first mold is removed, so that the models in the first mold and the second mold are connected to each other to obtain a lightweight and soft rubber sole.

[0061] Please refer to Figures 1-3 The first embodiment of this utility model includes a transparent first enclosure structure 1, an upper layer 2, a middle layer 3 and a lower layer 4 arranged sequentially from top to bottom. The first enclosure structure 1 is arranged along the circumference of the upper layer 2, and the outer surface of the lower layer 4 is provided with an anti-slip pattern.

[0062] The upper layer 2 has two 5mm wide hollow arcs 21 arranged circumferentially, located on both sides of the arch of the foot. Two connecting bodies 22 are arranged in the middle of the hollow arcs 21. The length of the hollow arcs 21 is 11 / 20 of the length of the sole. One end of the connecting body 22 is connected to the hollow arc 21, and the other end is connected to the lower layer 4. The thickness of the connecting body 22 is 1.5mm. The distance between the first connecting body 22 and the end of the hollow arc 21 near the arch of the foot is 1.2cm, and the distance between two adjacent connecting bodies 22 is 1.2cm.

[0063] The intermediate layer 3 includes a second surrounding structure 31 and a hollow column 32. The wall thickness of the second surrounding structure 31 is 1.2 mm. One end of the second surrounding structure 31 is connected to the outer periphery of the upper layer 2, and the other end is connected to the outer periphery of the lower layer 4. The outer periphery of the lower layer 4 protrudes upward and connects to the second surrounding structure 31. One end of the hollow column 32 is connected to the upper layer 2, and the other end is connected to the lower layer 4. The diameter of the hollow column 32 is 8-10 mm, the height is 5-12 mm, and the wall thickness is 1.2 mm. The diameter of the hollow column 32 located at the forefoot is larger than that of the hollow column 32 located at the heel, and the height of the hollow column 32 located at the forefoot is smaller than that of the hollow column 32 located at the heel (i.e., the diameter of the hollow column 32 located at the forefoot is 10 mm and the height is 5 mm, and the diameter of the hollow column 32 located at the heel is 8 mm and the height is 12 mm). Colored elastic beads are provided inside the hollow column 32.

[0064] The second embodiment of this utility model includes a transparent first enclosure structure 1, an upper layer 2, a middle layer 3 and a lower layer 4 arranged sequentially from top to bottom. The first enclosure structure 1 is arranged along the circumference of the upper layer 2, and the outer surface of the lower layer 4 is provided with an anti-slip pattern.

[0065] The upper layer 2 has two 4mm wide hollow arcs 21 arranged along the circumference, located on both sides of the arch of the foot. Three connectors 22 are arranged in the middle of the hollow arcs 21. The length of the hollow arcs 21 is 1 / 2 of the length of the sole. One end of the connector 22 is connected to the hollow arcs 21, and the other end is connected to the lower layer 4. The thickness of the connector 22 is 1mm, and the distance between two adjacent connectors 22 is 1cm.

[0066] The intermediate layer 3 includes a second surrounding structure 31 and a hollow column 32. The wall thickness of the second surrounding structure 31 is 1 mm. One end of the second surrounding structure 31 is connected to the outer periphery of the upper layer 2, and the other end is connected to the outer periphery of the lower layer 4. The outer periphery of the lower layer 4 protrudes upward and connects to the second surrounding structure 31. One end of the hollow column 32 is connected to the upper layer 2, and the other end is connected to the lower layer 4. The diameter of the hollow column 32 is 9-10 mm, the height is 7-12 mm, and the wall thickness is 1 mm. The diameter of the hollow column 32 located at the forefoot is larger than that of the hollow column 32 located at the heel, and the height of the hollow column 32 located at the forefoot is smaller than that of the hollow column 32 located at the heel (i.e., the diameter of the hollow column 32 located at the forefoot is 10 mm and the height is 7 mm, and the diameter of the hollow column 32 located at the heel is 9 mm and the height is 12 mm). Colored elastic beads are provided inside the hollow column 32.

[0067] The third embodiment of this utility model includes a transparent first enclosure structure 1, an upper layer 2, a middle layer 3 and a lower layer 4 arranged sequentially from top to bottom. The first enclosure structure 1 is arranged along the circumference of the upper layer 2, and the outer surface of the lower layer 4 is provided with an anti-slip pattern.

[0068] The upper layer 2 has two 6mm wide hollow arcs 21 along its circumference, located on both sides of the arch of the foot. Three connectors 22 are set in the middle of the hollow arcs 21. The length of the hollow arcs 21 is 3 / 5 of the length of the sole. One end of the connector 22 is connected to the hollow arcs 21, and the other end is connected to the lower layer 4. The thickness of the connector 22 is 2mm, and the distance between two adjacent connectors 22 is 1.5cm.

[0069] The intermediate layer 3 includes a second surrounding structure 31 and a hollow column 32. The wall thickness of the second surrounding structure 31 is 1.5mm. One end of the second surrounding structure 31 is connected to the outer periphery of the upper layer 2, and the other end is connected to the outer periphery of the lower layer 4. The outer periphery of the lower layer 4 protrudes upward and connects to the second surrounding structure 31. One end of the hollow column 32 is connected to the upper layer 2, and the other end is connected to the lower layer 4. The diameter of the hollow column 32 is 8~9mm, the height is 5~10mm, and the wall thickness is 1.5mm. The diameter of the hollow column 32 located at the forefoot is larger than that of the hollow column 32 located at the heel, and the height of the hollow column 32 located at the forefoot is smaller than that of the hollow column 32 located at the heel (i.e., the diameter of the hollow column 32 located at the forefoot is 9mm and the height is 5mm, and the diameter of the hollow column 32 located at the heel is 8mm and the height is 10mm). Colored elastic beads are provided inside the hollow column 32.

[0070] Please refer to Figure 4 and 5 The fourth embodiment of this utility model is: a mold for preparing the lightweight soft and elastic rubber shoe sole of the first embodiment, including a first mold 5 and a second mold 6. The first mold 5 includes an upper mold 51 and a lower mold 52. The upper mold 51 and the lower mold 52 are fitted together to prepare the first surrounding structure 1, the upper layer 2 and the middle layer 3. The second mold 6 is used to prepare the lower layer 4.

[0071] In summary, the rubber sole structure and mold provided by this utility model have the following advantages:

[0072] 1. Multiple upward-opening hollow pillars are set in the middle layer, and the diameter and length of the hollow pillars located at the forefoot and heel are limited. While forming a slightly sloping surface that fits the foot structure, the elasticity of the forefoot and the weight-reducing effect are maintained, and the support and elasticity of the heel are improved.

[0073] 2. Placing colored elastic beads in the transparent sole can further improve the elasticity and support of the sole, and enrich the color and appearance of the sole.

[0074] 3. The design incorporates a hollowed-out arc to improve the breathability of the sole and further reduce its weight.

[0075] 4. Setting connecting bodies in the hollowed-out arc can improve the stability and pressure resistance of the shoe sole.

[0076] 3. The rubber shoe sole structure is prepared by using a combination of the first and second molds, resulting in a stable structure and a simple and quick preparation process.

[0077] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lightweight, soft, and elastic rubber sole, characterized in that, It includes an upper layer, a middle layer and a lower layer arranged from top to bottom; the middle layer includes a hollow column, one end of which is connected to the upper layer and the other end of which is connected to the lower layer; The diameter of the hollow column located at the forefoot is larger than that of the hollow column located at the heel, and the height of the hollow column located at the forefoot is smaller than that of the hollow column located at the heel.

2. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, It also includes a first enclosing structure, wherein the first enclosing structure, the upper layer, the middle layer and the lower layer are arranged sequentially from top to bottom, and the first enclosing structure is arranged circumferentially along the upper layer.

3. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, The rubber soles are all made of transparent rubber, and colored elastic beads are arranged inside the hollow cylinder.

4. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, The diameter of the hollow cylinder is 8~10mm.

5. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, The height of the hollow column is 5~12mm.

6. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, The upper layer has at least two hollowed-out arcs along its circumference.

7. The lightweight, soft, and elastic rubber sole according to claim 6, characterized in that, At least two connectors are provided in the middle of the hollowed-out arc. One end of the connector is connected to the hollowed-out arc, and the other end of the connector is connected to the lower layer.

8. The lightweight, soft, and elastic rubber sole according to claim 7, characterized in that, The distance between two adjacent connectors is 1 to 1.5 cm.

9. The lightweight, soft, and elastic rubber sole according to claim 1, characterized in that, The intermediate layer also includes a second surrounding structure, one end of which is connected to the outer periphery of the upper layer, and the other end of which is connected to the outer periphery of the lower layer.

10. A mold for preparing the lightweight, soft, and elastic rubber sole according to any one of claims 1-9, characterized in that, It includes a first mold and a second mold. The first mold includes an upper mold and a lower mold. The upper mold and the lower mold are fitted together to prepare a first enclosure structure, an upper layer and an intermediate layer. The second mold is used to prepare a lower layer.

Images