Special but not exclusive waterproof breathable footwear of safety type etc.

Abstract

A particularly but not exclusively of the type of security that such a waterproof and vapor-permeable shoe (10,100,200,300,400), comprising: an upper assembly (11, 211), which comprises at least one upper (12, 112, 212, 312) and in the interior of the upper waterproof breathable functional layer (13,113,213,313,413); a sole portion made of a waterproof material (15,115,215,315,415), the said sole portion (11, 211) below said upper assembly coupled to said upper assembly (11, 211); at least one gas-permeable layer (16,116,216,316,416), which is provided by the shoe ( beneath the user's foot for accommodating the insertion space (a), 10,100,200,300,400) formed inside.Located in the shoe (10,100,200,300,400) at least a portion of the side opening (17,117,217,317,417) which is provided in the upper assembly (11, 211) connected to the sole vicinity portion (15,115,215,315,415) of said at least one opening (17,117,217,317,417) towards said at least one gas-permeable layer (16,116,216,316,416) a peripheral edge (16a, 116a, 216a, 316a, 416a) is open.The shoe (10,100,200,300,400) having a peripheral edge disposed (16a, 116a, 216a, 316a, 416a) and said at least one opening (17,117,217,317,417) between optionally member to selectively prevent at least one gas permeable layer (16,116,216,316,416) of said water from said at least one access opening (17,117,217,317,417) of: at least one waterproof and breathable functional element (18,118,418); or the functional layer (213, 313) at least one functional unit (213a, 313a).Further, at least one gas-permeable layer (16,116,216,316,416) is made from a fibrous, porous, air-permeable microporous material selected material.

Description

technical field [0001] The invention relates to a waterproof and breathable (steam) shoe. [0002] Such shoes are particularly but not exclusively of the safety type and the like. Background technique [0003] It is well known that for comfort a correct exchange of heat and water vapor between the microclimate inside the shoe and the outside environment must be ensured. [0004] In the field of producing waterproof footwear, it is considered highly desirable to confirm that the structure of the footwear is more efficient and reliable in allowing heat exchange and breathability, while ensuring that it is impermeable to liquid water. [0005] Specifically, the main waterproof and breathable shoes currently on the market are adapted to allow water vapor to pass through the upper and sole. [0006] Regarding the upper, shoes on the market have a lining made of a breathable material impermeable to liquid water. [0007] Some models of shoes are known in which part of the upper...

AI Technical Summary

Problems solved by technology

[0022] Although water penetration into the sock-like liner is avoided, this construction has the disadvantages that water may seep through the lateral openings of the upper and soak into the air-permeable layer and the combined insole provided outside the sock-like liner and any other optional fill layer

[0028] In addition, shoe materials penetrated by water ingress between the waterproof liner and the sole layer will remain wet for a long time, dry slowly, and therefore deteriorate rapidly

[0029] In addition, without proper protection, sewage and dust will block the openings of the upper and the breathable layer, which will inevitably hinder the breathable function of the shoe

Images