Waterproof and vapor permeable soles for shoes

Abstract

A waterproof and vapor-permeable sole (10) for a shoe, comprising: - a first profiled element (11) having at least one hollow lower part (12) in the plantar region, the hollow lower part consisting of A boundary (13) delimits and is provided with at least one through-opening (14) at right angles to the ground resting structure, which in turn is delimited by an edge (15) inside the boundary (13), -at least one second contoured flat An element (19) with its peripheral edge (20) joined to the edge (15) at points of mutual contact in a lower region relative to the first element (11) and whose upper surface is provided with recesses and protrusions (21 ), the recesses and protrusions define passages for air, vapor and liquid, and at least one functional element (28) is substantially sheet-like, the functional element is waterproof and vapor permeable and is joined in the upper region so as to be along the edge ( 15) Providing a seal to the first element (11). The second element (19) has a shorter extension than the corresponding hollow lower part (12), so as to define together with the boundary (13) a groove (22) surrounding it and together with the rim (15) in a non-contact area Extensions are defined for passages towards the outside, connecting them to the grooves (22).

Description

technical field [0001] The present invention relates to waterproof and vapor permeable soles for shoes. Background technique [0002] It is now known that if, in addition to the anatomical fit and waterproofing, the shoe is able to ensure the correct exchange of heat and water vapor between the microenvironment inside the shoe and the microenvironment outside, this is not the same as the The ability to emit water vapor is consistent. [0003] Usually the part of the foot that sweats the most is the sole of the foot. Sweat saturates the internal environment of the shoe and most of it condenses, stagnating on the insole. [0004] Italian patent 1232798 discloses a shoe that solves the problem of vapor penetration by providing a rubber sole, ensuring correct vapor penetration through the rubber sole through an effective exchange of heat and water vapor between the environment inside the shoe and the environment outside. [0005] Such a rubber sole at the same time ensures th...

AI Technical Summary

Problems solved by technology

[0025] The solutions proposed in these last two documents require the use of components such as valves that significantly affect the time of the process of assembling the elements that make up the shoe and therefore also the final cost

[0026] Furthermore, the effectiveness and durability of the watertight and vapor permeable barrier closing the inlet of the valve is unpredictable and unreliable due to the fact that its direct exposure to interaction with external objects can lead to its degradation or separation

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