Shoe sole that allows breathability of the foot
The present invention concerns the footwear sector and more specifically it concerns a sole obtainable through compression or injection moulding that allows breathability of the wearer's foot thanks to the combined action of a series of technical elements such as cylindrical stems with relative caps of underlying air chambers shaped like truncated cones and compression distribution devices all located underneath an alternating series of holes moulded on the sole.
1. An article comprising:
a shoe sole having a first plurality of holes and a second plurality of holes arranged in alternating relation with said first plurality of holes, each of said first plurality of holes having an opening at an upper surface of said shoe sole, each of said second plurality of holes having an opening at said upper surface of said shoe sole, said shoe sole having a cylindrical stem positioned in each of said first plurality of holes, said cylindrical stem having a cap at an upper end thereof, said cap positioned adjacent the opening of said first plurality of holes, each of said first plurality of holes defining a chamber of a truncated cone shape, said shoe sole having a plurality of dome-shaped cavities at a lower surface thereof, said chamber communicating with the dome-shaped cavity through a ventilation channel formed within said shoe sole, each of said second plurality of holes having a compression distribution protrusion formed thereon, said compression distribution protrusion having an upper surface adjacent the opening of the second plurality of holes, said cap being movable downwardly so as to close the opening of said first plurality of holes such that air in said chamber is discharged outwardly of said shoe sole through the dome-shaped cavity.
2. The article of claim 1 , further comprising:
an intermediate sole having a series of holes formed therethrough, the compression distribution protrusion supporting said intermediate sole above said first plurality of holes of said shoe sole.
3. The article of claim 1 , the opening of said first plurality of holes each having a diameter greater than a diameter of each of said second plurality of holes.
4. The article of claim 1 , said cap having a diameter approximately equal to a diameter of said first plurality of holes.
5. The article of claim 1 , said cap having an upper surface coplanar with said upper surface of said shoe sole.
6. The article of claim 1 , said dome-shaped cavity having a wide diameter opening at said lower surface of said shoe sole and a narrow diameter adjacent and below said air chamber.