Abstract: A method of molding a sole (6) in vulcanized foam rubber for footwear, includes preparing a rubber in the form of a strip, preformed and/or granules, mixing the rubber inside a loading and mixing chamber (10), and preparing a mold (4) for the molding of a footwear sole (6). The mold (4) defines a molding chamber (8) counter-shaped with respect to a footwear sole (6). The mixed material is conveyed inside the molding chamber (8) and molding the footwear sole (6) inside the molding chamber (8) and the footwear sole (6) is removed from the mold (4). The rubber includes a foaming agent able to generate an expansion of the material inside the molding chamber (8) during molding, so as to uniformly fill the molding chamber (8) with the foam rubber. The foam material is vulcanized inside the molding chamber (8).

Abstract: The present invention relates to the footwear industry. More specifically, the present invention concerns a device that, inserted in soles for footwear, allows the user to equip his or her own footwear, mechanically and easily, with anti-slip serrated nails in the presence of snow or ice or other slippery material on the paved surface.

Abstract: The present invention relates to the footwear industry. More specifically, the present invention concerns a device that, inserted in soles for footwear, allows the user to equip his or her own footwear, mechanically and easily, with anti-slip serrated nails in the presence of snow or ice or other slippery material on the paved surface.