KR-102961504-B1 - Outsole structure for footwear with air circulation function

Abstract

The present invention relates to a shoe outsole structure having an air circulation function, and more specifically, to a shoe outsole structure having an air circulation function configured to improve breathability and comfort by utilizing pressure generated during a shoe wearer's walking to allow external air to be drawn in, moved, and expelled without separate power or additional components.

Inventors

• 김민우

Assignees

• (주)동호인더스트리

Dates

Publication Date

20260508

Application Date

20250619

Claims (8)

1. In a shoe outsole structure having an air circulation function configured to inhale, circulate, and exhale external air using pressure generated during walking by the wearer, An air inlet formed at the rear end of the above outsole; An air pump unit connected to the above air inlet unit, which draws in external air and moves it forward by the load applied from the heel during walking; An air vent formed at the front of the above outsole; and An air passage formed between the air pump section and the air discharge section; comprising, The above air passage includes a curved passage that is repeatedly formed in a zigzag shape to extend the air movement path compared to a straight passage, thereby increasing the air residence time and creating natural resistance during the air flow to prevent the air flow from flowing backward. In the above air passage, a plurality of island-shaped protrusions are formed to decelerate the speed of air movement, disperse and rotate the airflow, and improve air circulation efficiency through the formation of vortices. The above outsole is, A first outsole comprising a main body and having a compression receiving portion in the shape of a concave groove formed on the upper surface, and It includes a second outsole that is detachably coupled to the rear upper portion of the first outsole and has an elastic protrusion formed in a convex shape protruding upward at a position corresponding to the compression receiving portion. A shoe outsole structure having an air circulation function, characterized in that a pressure relief hole is formed around the compression receiving portion of the first outsole to prevent internal air from being excessively compressed by the operation of the air pump portion.
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4. In Article 1, The above air pump section comprises a groove-shaped compression receiving section formed on the upper surface of the heel portion of the first outsole and an elastic protrusion formed convexly at a position corresponding to the heel portion of the second outsole, and an inlet passage for external air to be introduced is formed between the rear end of the second outsole and the elastic protrusion, characterized in that the shoe outsole structure has an air circulation function.
5. In Paragraph 4, An outsole structure for a shoe having an air circulation function, characterized in that the above-mentioned inlet passage has a bend formed therein to mitigate the speed of external air inflow caused by the action of an air pump.
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7. In Paragraph 4, An outsole structure for a shoe having an air circulation function, characterized by having a plurality of circular grooves formed around the elastic protrusion of the second outsole to induce smooth contraction and restoration deformation of the elastic protrusion when the air pump part is operated.
8. In Article 1, The above air channel includes a lower channel formed on the upper surface of the first outsole and an upper channel formed on the lower surface of the second outsole connected to the rear end of the lower channel. The above-mentioned island-shaped protrusion is a shoe outsole structure having an air circulation function, comprising a first protrusion formed to protrude upward in the lower channel and a second protrusion formed to protrude downward in the upper channel.

Description

Outsole structure for footwear with air circulation function The present invention relates to a shoe outsole structure having an air circulation function, and more specifically, to a shoe outsole structure having an air circulation function configured to improve breathability and comfort by utilizing pressure generated during a shoe wearer's walking to allow external air to be drawn in, moved, and expelled without separate power or additional components. Shoes are items that perform the function of protecting the wearer's feet, cushioning impact when walking or running, and assisting in stable walking. They generally consist of an upper part and a lower part, and the sole can be further divided into an outsole, a midsole, and an insole. Among these, the outsole is the part that comes into direct contact with the ground and performs functions such as wear resistance, slip resistance, and shock absorption, and also has a significant impact on the overall structural stability of the shoe. Recently, structures incorporating various cushioning, ventilation, and shock-absorbing functions into the outsole are being introduced to enhance wearer comfort. For example, Korean Patent Publication No. 10-2012-0131991 discloses a shoe equipped with an air supply sole device, the main technical configuration of which includes a structure that circulates external air into the shoe through a pumping groove in the heel area and a disc check valve. In other words, the aforementioned prior art is characterized by the technical feature of being configured to ensure smooth ventilation and keep the wearer's feet comfortable by supplying and circulating external air into the inside of the shoe; however, since additional components with poor durability, such as disc check valves, are essential for circulating air, it has the disadvantage of being structurally complex and difficult to maintain long-term effectiveness. In addition, the aforementioned conventional technology has the problem that since the airflow path is configured in a simple straight line shape, the air residence time is short, which may reduce the effect of improving air permeability and maintaining comfort due to air circulation, and there are limitations in performing complex functions such as noise reduction or cushioning effects. FIG. 1 is a perspective view showing a shoe outsole structure having an air circulation function according to the present invention. FIG. 2 is a diagram showing the present invention shown in FIG. 1 in isolation. FIG. 3 is a plan view showing the first outsole of the present invention shown in FIG. 2. FIG. 4 is a diagram exemplarily illustrating the airflow in the first outsole of the present invention shown in FIG. 2. FIG. 5 is a drawing showing the bottom surface of the second outsole of the present invention shown in FIG. 2. The embodiments of the present disclosure are illustrative for the purpose of explaining the technical concept of the present disclosure. The scope of rights according to the present disclosure is not limited to the embodiments presented below or the specific description thereof. All technical and scientific terms used in this disclosure, unless otherwise defined, have the meaning generally understood by those skilled in the art to which this disclosure pertains. All terms used in this disclosure are selected for the purpose of further clarifying this disclosure and are not selected to limit the scope of the rights under this disclosure. Expressions such as “comprising,” “comprising,” “having,” etc. used in this disclosure should be understood as open-ended terms implying the possibility of including other embodiments, unless otherwise stated in the phrase or sentence containing such expressions. Unless otherwise stated, singular expressions described in this disclosure may include a plural meaning, and this applies likewise to singular expressions described in the claims. Hereinafter, preferred embodiments of a shoe outsole structure having an air circulation function according to the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a perspective view showing an outsole structure for a shoe having an air circulation function according to the present invention, FIG. 2 is a diagram showing the present invention shown in FIG. 1 in a disassembled state, FIG. 3 is a plan view showing the first outsole of the present invention shown in FIG. 2, FIG. 4 is a diagram exemplarily showing the air flow in the first outsole of the present invention shown in FIG. 2, and FIG. 5 is a diagram showing the bottom surface of the second outsole of the present invention shown in FIG. 2. The present invention relates to a shoe outsole structure (hereinafter referred to as the 'outsole (1) structure') having an air circulation function that can improve breathability and comfort by utilizing the pressure generated when a shoe wearer walks to allow external air to be introduced, moved, and d