Insole

Abstract

A shoe pad comprises a shoe pad body made of foaming materials, a cloth layer unit fixedly covering the shoe pad body in the overlapping axial direction and a plurality of air holes communicated with the cloth layer unit, the shoe pad body is provided with a plurality of bubble holes communicated with one another, and the pore size of the air holes perpendicular to the overlapping axial direction is smaller than 0.1 mm. The cloth layer unit comprises a cloth layer and a waterproof film, the air holes are communicated with the cloth layer and the waterproof film and are communicated with the bubble holes, and the air holes are communicated with the bubble holes to form a plurality of air channels. Therefore, when a user walks, positive pressure generated by the sole on the insole can enable the insole to generate a breathable effect.

Description

Technical Field

[0001] The utility model relates to a shoe insole, in particular to a shoe insole with a breathable effect. Background Art

[0002] A general sole structure includes an outsole, a midsole, and an insole, and the insole is replaceable. The insole can provide comfort when worn. If the insole is made of elastic material, it can also reduce the pressure on the sole of the foot and buffer foot fatigue.

[0003] Some existing insoles include a foam layer, a cloth layer adhered to the foam layer, and a plurality of ventilation holes penetrating the foam layer and the cloth layer. Such insoles may cause a foreign body sensation on the sole of the foot when the insole is worn due to the large diameter of the ventilation holes and the edges of the holes. Utility Model Content

[0004] The purpose of the utility model is to provide a shoe insole which can produce better air permeability and comfort.

[0005] The insole of the utility model comprises an insole body, a cloth layer unit, and a plurality of air holes. The insole body is made of a foam material and has air permeability. The insole body has a bottom surface, a top surface opposite to the bottom surface, and a plurality of air bubbles that are interconnected and can connect the bottom surface and the top surface. The cloth layer unit is adhered to the insole body along the overlapping axis. The cloth layer unit includes a cloth layer and a waterproof film fixed to the bottom surface of the cloth layer. The waterproof film is between the cloth layer and the insole body, and the waterproof film is adhered to the top surface of the insole body. The air holes are connected to the cloth layer and the waterproof film of the cloth layer unit, and are interconnected with the air bubbles. The pore size of the air holes perpendicular to the overlapping axis is less than 0.1 mm, and the air holes are interconnected with the air bubbles to form a plurality of air passages.

[0006] In the insole of the utility model, the size of the pores of the ventilation holes perpendicular to the overlapping axis approaches 0.01 mm.

[0007] The insole of the utility model is characterized in that the insole body is made of air-permeable polyurethane foam material.

[0008] The insole of the utility model comprises the insole body, the fabric layer and the waterproof membrane which are integrally formed, the insole body has a thickness of 3 mm to 10 mm, the waterproof membrane has a thickness of 0.05 mm to 0.3 mm, and the fabric layer has a thickness of 0.2 mm to 0.5 mm.

[0009] In the insole of the utility model, the waterproof film is made of thermoplastic polyurethane.

[0010] The beneficial effect of the utility model is that: by utilizing the effect that the pore size of the air holes perpendicular to the overlapping axis is less than 0.1 mm, the soles of human feet will not feel a foreign body sensation when walking, and the air bubbles and the air holes are interconnected to form the air passage when walking, so that the insole has a better ventilation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional combination diagram of an embodiment of the insole of the utility model;

[0012] Figure 2 is a partial cross-sectional schematic diagram of the embodiment, illustrating that the plurality of air holes are in a normal pressure state;

[0013] Figure 3 is a schematic diagram of the use of this embodiment, illustrating that the vent hole is in a positive pressure state;

[0014] Figure 4 It is one of the formation methods of the vent hole in this embodiment;

[0015] Figure 5 This is another way of forming the air holes in this embodiment. DETAILED DESCRIPTION

[0016] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0017] See also Figure 1 and Figure 2 An embodiment of the insole of the utility model is an integrally formed insole, and comprises an insole body 10 made of a breathable foam material, and a fabric layer unit 20 fixedly covered on the insole body 10 along a stacking axis Y. After forming, a plurality of breathable holes 30 connected to the insole body 10 are processed in the fabric layer unit 20 by a perforating cutter or a roller press with a rolling needle.

[0018] The insole body 10 is made of polyurethane (PU) foam material and is breathable. The thickness of the insole body 10 is about 3mm to 10mm, and its thickness is adjusted according to the requirements of inserting it into the shoe. The insole body 10 has a bottom surface 11, a top surface 12 opposite to the bottom surface 11, and a plurality of air bubbles 13 that are interconnected and can connect the bottom surface 11 and the top surface 12. The air bubbles 13 are formed directly by using air-permeable polyurethane (PU) foam material. In this embodiment, the foam material of the insole body 10 is the commercial brand "Helixing" with the material number "P-920 / I-960".

[0019] The fabric layer unit 20 includes a fabric layer 21 and a waterproof membrane 22 fixedly coated on the bottom surface of the fabric layer 21. The waterproof membrane 22 is made of thermoplastic polyurethane (TPU for short), and the waterproof membrane 22 is between the fabric layer 21 and the insole body 10, and the waterproof membrane 22 is fixedly coated on the top surface 12 of the insole body 10. In the manufacturing process of the insole, the fabric layer 21, the waterproof membrane 22 and the insole body 10 are integrally formed by flowing into the mold through multiple flow channels. The thickness of the fabric layer 21 is controlled to be approximately 0.2mm to 0.5mm, and the thickness of the waterproof membrane 22 is controlled to be approximately 0.05mm to 0.3mm. After the insole of the utility model is formed, the waterproof membrane 22 completely blocks the fabric layer 21 and the insole body 10.

[0020] The vent holes 30 are arranged along the stacking axial direction Y and penetrate the fabric layer 21 and the waterproof membrane 22, and are interconnected with the air bubble holes 13. The vent holes 30 that penetrate the fabric layer 21 and the waterproof membrane 22 are interconnected with the air bubble holes 13 to form a plurality of venting channels. The pore size of the vent holes 30 perpendicular to the stacking axial direction Y is less than 0.1 mm, and the optimal pore size of the vent holes 30 is 0.01 mm.

[0021] There are two ways to form the vent holes 30, one of which is as follows: Figure 4 As shown, a perforating cutter 100 is used, and the perforating cutter 100 has a plurality of dense fine needles 110, and the length of the dense fine needles 110 is 25mm to 30㎜, and the perforating cutter 100 is linked to a rocker-arm cutting machine 1 to produce up and down reciprocating motion, and cooperates with a semi-finished insole 300 to intermittently move along a transverse axis X perpendicular to the overlapping axis Y, so that the semi-finished insole 300 can be punctured by the dense fine needles 110, and the air holes 30 penetrating the fabric layer 21 and the waterproof membrane 22 can be generated in the fabric layer unit 20, and the air holes 30 are connected with the bubble holes 13 to form the air permeable channel, and the insole of the utility model is obtained.

[0022] Another Figure 5As shown, a roller press 200 is used, and the roller press 200 has a needle wheel 210 and a roller 220, and a plurality of fine needles 230 are provided on an outer peripheral surface of the needle wheel 210. When the roller press 200 is started and the needle wheel 210 and the roller 220 rotate in opposite directions, and cooperate with a semi-finished insole 300 to intermittently move along a transverse axis X perpendicular to the stacking axis Y, the semi-finished insole 300 can be pierced by the fine needles 230, and the air holes 30 penetrating the fabric layer 21 and the waterproof film 22 can be generated in the fabric layer unit 20, and the air holes 30 are connected with the air bubble holes 13 to form the air permeable channels, so that the insole of the utility model can be manufactured.

[0023] Therefore, the insole of the present invention utilizes the effect that the pore size of the air vent 30 perpendicular to the overlapping axis Y is less than 0.1 mm, so that the sole of the human foot will not feel a foreign body when walking, and it is more comfortable to wear.

[0024] Since the pore size of the air hole 30 perpendicular to the overlapping axis Y is designed to be less than 0.1 mm, the hole cannot be seen by the naked eye, thereby maintaining the ventilation effect and the overall aesthetics of the product.

[0025] Furthermore, the insole body 10 is made of polyurethane foam material and has air permeability, and the insole body 10 has the air holes 13 that are interconnected and can connect the bottom surface 11 and the top surface 12, and the air holes 30 are arranged along the stacking axis Y and penetrate the fabric layer 21 and the waterproof membrane 22, and are interconnected with the air holes 13 to form the air permeable channel. Figure 3 When a person wears shoes and walks, the pressure exerted by the sole of the person's foot on the insole causes the positive pressure airflow to pass through the air bubble holes 13 and the air holes 30, and the insole produces a better ventilation effect.

[0026] In summary, the insole of the utility model has a simple overall structure and is easy to manufacture, and can indeed achieve the purpose of the utility model.

Claims

1. An insole comprising an insole body, a fabric unit fixedly covering the insole body, and a plurality of ventilation holes communicating with the fabric unit, characterized in that: The insole body is made of a foam material and has air permeability. The insole body has a bottom surface, a top surface opposite to the bottom surface, and a plurality of bubble holes that are interconnected and can connect the bottom surface and the top surface; The fabric layer unit is adhered to the insole body along the overlapping axis, and the fabric layer unit includes a fabric layer and a waterproof membrane fixedly covered on the bottom surface of the fabric layer, the waterproof membrane is between the fabric layer and the insole body, and the waterproof membrane is adhered to the top surface of the insole body; The air holes are connected to the fabric layer of the fabric layer unit and the waterproof membrane, and are interconnected with the bubble holes. The pore size of the air holes perpendicular to the stacking axis is less than 0.1 mm, and the air holes are interconnected with the bubble holes to form a plurality of air passages.

2. The insole according to claim 1, characterized in that: The pore size of the air pores perpendicular to the overlapping axis is close to 0.01 mm.

3. The insole according to claim 1, characterized in that: The insole body is made of air-permeable polyurethane foam material.

4. The insole according to claim 1, characterized in that: The insole body, the fabric layer and the waterproof membrane are integrally formed, the insole body has a thickness of 3 mm to 10 mm, the waterproof membrane has a thickness of 0.05 mm to 0.3 mm, and the fabric layer has a thickness of 0.2 mm to 0.5 mm.

5. The insole according to claim 4, characterized in that: The waterproof membrane is made of thermoplastic polyurethane.

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