A shoe sole with conductive function

Abstract

This utility model belongs to the field of shoemaking, specifically disclosing a conductive shoe sole, including a midsole and a conductive outsole connected from top to bottom. A conductive sheet is installed on the upper surface of the conductive outsole at the base of the toes in the middle of the forefoot. The conductive sheet is connected to the conductive webbing on the upper of the finished shoe. This utility model achieves anti-static properties, avoiding the problems associated with adding anti-static liquid to the midsole, without affecting the function of the midsole material, and reducing production costs. This utility model is applicable to anti-static footwear.

Description

Technical Field

[0001] This utility model belongs to the field of shoemaking, specifically a shoe sole with conductive function. Background Technology

[0002] Under normal circumstances, the human body generates static electricity during daily activities due to friction with air or other substances. In specific work environments, such as electronics manufacturing, petrochemicals, medical operating rooms, and aerospace, the accumulation of static electricity may cause serious safety hazards.

[0003] To eliminate the hazards of static electricity, shoe soles typically need to be conductive to ensure the safe release of static electricity from the human body through grounding. Current technology often achieves this by adding antistatic liquid to the rubber outsole. However, producing antistatic midsoles by adding antistatic liquid during the manufacturing process is difficult. This is because adding antistatic liquid to EVA, PU, ​​TPU, and foamed rubber midsoles during production affects the material's functionality, making it hard to control its function and properties. Furthermore, the long processing cycle increases production costs, posing a significant challenge for manufacturers. Utility Model Content

[0004] The purpose of this invention is to provide a shoe sole with conductive function to achieve antistatic properties, avoid the problems caused by adding antistatic liquid to the midsole, not affect the function of the midsole material, and reduce production costs.

[0005] To achieve the above objectives, the technical method adopted by this utility model is as follows:

[0006] A conductive sole includes a midsole and a conductive outsole connected from top to bottom. A conductive sheet is installed on the upper surface of the conductive outsole at the base of the toes in the middle of the forefoot. The conductive sheet is connected to the conductive webbing on the upper of the finished shoe.

[0007] As a limitation: the conductive sheet includes a connected plug and a contact part, and a conductive post is provided on the upper surface of the forefoot at the base of the toes. The conductive post has a countersunk hole that matches the plug of the conductive sheet. The depth of the countersunk hole is less than the height of the conductive post, and the plug of the conductive sheet is inserted into the countersunk hole.

[0008] As a further limitation: the insertion portion of the conductive sheet includes a first inclined surface, an arched portion, and a second inclined surface. The first inclined surface is connected to one end of the second inclined surface through the arched portion, forming a V-shaped structure. The height of the second inclined surface is greater than the height of the first inclined surface. The height of the first inclined surface is not less than the depth of the countersunk hole of the conductive post. The width between the top of the first inclined surface and the second inclined surface is greater than the width of the countersunk hole of the conductive post. The width of the countersunk hole of the conductive post is not less than the sum of the width of the first inclined surface and the width of the second inclined surface. The other end of the second inclined surface is connected to the contact portion.

[0009] As a further definition: the contact portion and the second inclined surface have an L-shaped structure, and the other end of the contact portion is a downwardly sloping folded edge.

[0010] As a limitation: the conductive outsole is a conductive rubber outsole, and after inserting the conductive post countersunk hole, the distance between the highest point of the conductive sheet and the bottom surface of the conductive post is 2mm higher than the distance between the conductive outsole and the inner surface of the shoe upper at the same position.

[0011] As a limitation: the midsole is a structure formed by injection molding of PU.

[0012] The beneficial effects achieved by this utility model, due to the adoption of the above-mentioned solution, compared with the prior art, are as follows:

[0013] (1) The present invention provides a conductive sole, which forms a through conductive channel between the conductive webbing on the upper, the conductive outsole and the ground by setting a conductive sheet at the forefoot position of the conductive outsole, thereby achieving the purpose of antistatic, avoiding the trouble caused by adding antistatic liquid to the midsole, not affecting the function of the midsole material, reducing production costs, and ensuring the continuity of the conductive channel when a person stands on tiptoe;

[0014] (2) The present invention provides a conductive sole, which prevents the conductive sheet from shifting by setting conductive posts and countersunk holes. The depth of the countersunk holes is less than the height of the conductive posts, which avoids the situation where the conductive sheet is squeezed by the upper molding and breaks through the conductive outsole from the bottom of the countersunk holes. In addition, the conductive posts are set at the base of the toes, which does not affect the flexion of the foot or the comfort of the shoe cavity to the foot, thus improving the user's comfort.

[0015] (3) The present invention provides a shoe sole with conductive function, wherein the height of the first inclined surface of the insertion part of the conductive sheet is not less than the depth of the countersunk hole of the conductive post, the width between the top of the first inclined surface and the second inclined surface is greater than the width of the countersunk hole of the conductive post, and the width of the countersunk hole of the conductive post is not less than the sum of the width of the first inclined surface and the width of the second inclined surface, so that the insertion part of the conductive sheet and the countersunk hole of the conductive post form an interference fit, so as to achieve the purpose of locking and fixing the conductive sheet; in addition, the contact area between the conductive sheet and the inner wall of the countersunk hole of the conductive post is increased, and the tightness of the contact between the conductive sheet and the inner wall of the countersunk hole of the conductive post is increased, so as to prevent the situation where the conductive sheet and the conductive post are not in contact due to the penetration of PU material when PU material is poured in, which affects the conductivity.

[0016] (4) The present invention provides a shoe sole with conductive function. The first inclined surface of the conductive sheet insertion part is connected to one end of the second inclined surface through the arched part, forming a V-shaped structure. The contact part and the second inclined surface form an L-shaped structure, which increases the contact area with the conductive webbing on the shoe upper. The other end of the contact part is a downwardly inclined folded edge, which prevents the conductive sheet from scratching other parts or operators during packaging, transportation and use. The overall shape of the conductive sheet improves its toughness in width and height.

[0017] (5) The present invention provides a conductive outsole, wherein the conductive outsole is a conductive rubber outsole. After inserting the conductive post countersunk hole, the distance between the highest point of the conductive sheet and the bottom surface of the conductive post is 2mm higher than the distance between the conductive outsole and the inner surface of the shoe upper at the same position. Because the rubber itself is tough and the conductive sheet is flexed and also tough, after molding, the pressure at the bottom of the inner surface of the shoe upper makes the conductive webbing on the upper surface and the conductive sheet in close contact, preventing the PU material from penetrating. The conductive sheet is made of metal, so it has a certain strength, hardness and toughness. After the PU material is injected, it can form a penetrating force through its own material properties and the physical pressure of the upper and sole space, penetrate the PU material and thus tightly bond with the conductive webbing on the inner surface of the upper, thereby ensuring the stability of the conductive performance.

[0018] This invention is applicable to antistatic shoes and boots. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of a shoe sole with conductive function according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the conductive sheet in an embodiment of this utility model;

[0022] In the figure: 1. Conductive outer bottom; 2. Conductive post; 3. Countersunk hole; 4. Conductive sheet; 41. First inclined surface; 42. Arched part; 43. Second inclined surface; 44. Contact part; 45. Folded edge part. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments. However, those skilled in the art should understand that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The present invention is not limited to the following embodiments. Any improvements and equivalent changes made based on the specific embodiments of the present invention are within the scope of protection of the claims of the present invention.

[0024] Example: A shoe sole with conductive function

[0025] A conductive shoe sole includes a midsole and a conductive outsole 1 connected from top to bottom. A conductive sheet 4 is installed on the upper surface of the conductive outsole 1 at the base of the toes in the middle of the forefoot. The conductive sheet 4 is connected to the conductive webbing on the upper of the finished shoe. A conductive post 2 is provided on the upper surface of the conductive outsole 1 at the base of the toes in the middle of the forefoot. The conductive sheet 4 includes a connected insertion part and a contact part 44. The conductive post 2 has a countersunk hole 3 adapted to the insertion part of the conductive sheet 4. The depth of the countersunk hole 3 is less than the height of the conductive post 2, and the insertion part of the conductive sheet 4 is inserted into the countersunk hole 3.

[0026] In this embodiment, the insertion part of the conductive sheet 4 includes a first inclined surface 41, an arched part 42, and a second inclined surface 43. The first inclined surface 41 is connected to one end of the second inclined surface 43 through the arched part 42, forming a V-shaped structure. The height of the second inclined surface 43 is greater than the height of the first inclined surface 41. The height of the first inclined surface 41 is not less than the depth of the countersunk hole 3 of the conductive post 2. The width between the top of the first inclined surface 41 and the second inclined surface 43 is 1-3 mm greater than the width of the countersunk hole 3 of the conductive post 2, and the width of the countersunk hole 3 of the conductive post 2 is not less than the sum of the width of the first inclined surface 41 and the width of the second inclined surface 43. The other end of the second inclined surface 43 is connected to one end of the contact part 44. The contact part 44 and the second inclined surface 43 form an L-shaped structure. The other end of the contact part 44 is a downwardly inclined folded edge part 45.

[0027] In this embodiment, the conductive outsole 1 is a conductive rubber outsole, the midsole is a structure formed by injection molding of PU, the conductive post 2 is a wire rubber post, and after inserting the conductive post 2 into the countersunk hole 3, the distance between the highest point of the conductive sheet 4 and the bottom surface of the conductive post 2 is 2mm higher than the distance between the conductive outsole 1 and the inner surface of the shoe upper at the same position.

[0028] In this embodiment, after the conductive sole is made into antistatic shoes, the static electricity of the human body is transferred from the sole of the foot to the conductive webbing on the upper, then to the conductive sheet 4, and then to the conductive outsole 1. The static electricity will be conducted to the ground through the conductive outsole 1.

Claims

1. A shoe sole with conductive function, characterized in that, It includes a midsole and a conductive outsole connected from top to bottom. A conductive sheet is installed on the upper surface of the conductive outsole at the base of the toes in the middle of the forefoot. The conductive sheet is connected to the conductive webbing on the upper of the finished shoe.

2. The conductive sole according to claim 1, characterized in that, The conductive sheet includes a plug-in part and a contact part connected together. A conductive post is provided on the upper surface of the forefoot at the base of the toes. The conductive post has a countersunk hole that matches the plug-in part of the conductive sheet. The depth of the countersunk hole is less than the height of the conductive post. The plug-in part of the conductive sheet is inserted into the countersunk hole.

3. A shoe sole with conductive function according to claim 2, characterized in that, The insertion part of the conductive sheet includes a first inclined surface, an arched part, and a second inclined surface. The first inclined surface is connected to one end of the second inclined surface through the arched part, forming a V-shaped structure. The height of the second inclined surface is greater than the height of the first inclined surface. The height of the first inclined surface is not less than the depth of the countersunk hole of the conductive post. The width between the top of the first inclined surface and the second inclined surface is greater than the width of the countersunk hole of the conductive post. The width of the countersunk hole of the conductive post is not less than the sum of the width of the first inclined surface and the width of the second inclined surface. The other end of the second inclined surface is connected to the contact part.

4. A shoe sole with conductive function according to claim 3, characterized in that, The contact part and the second inclined surface have an L-shaped structure, and the other end of the contact part is a downwardly sloping folded edge.

5. A shoe sole with conductive function according to any one of claims 2-4, characterized in that, The conductive outsole is made of conductive rubber. After inserting the conductive post into the countersunk hole, the distance between the highest point of the conductive sheet and the bottom surface of the conductive post is 2mm higher than the distance between the conductive outsole and the inner surface of the shoe upper at the same position.

6. A shoe sole with conductive function according to claim 1, characterized in that, The midsole is made using a PU injection molding process.

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