Patent ID: 8197736

Claim:
A method for providing a footwear antislip tread, comprising: providing a first mold which comprises a first mold part and a second mold part, and wherein said first mold part is provided internally with a series of pins, inserting within said first mold part a single element made of fabric or nonwoven fabric which is spread so as to extend over an entire impression, or a plurality of localized elements made of fabric or nonwoven fabric, which are located at said pins, closing together said first mold part and said second mold part so that the first mold is closed and said single element or said localized elements made of fabric or nonwoven fabric surround at least a free end of said pins which pass through an impression formed within the closed first mold for shaping holes in the tread, introducing in the closed first mold a moldable material selectable among rubber and plastic materials, so that the moldable material is interposed between said second mold part and the single element, or the localized elements made of fabric or nonwoven fabric, vulcanizing the moldable material introduced in the closed first mold, so that a first lower layer of the tread is formed which embeds, and presses against the pins, the single element or the localized elements so as to form a first intermediate component, providing a second mold which comprises a third mold part and a fourth mold part, closing the first intermediate component inside said second mold by closing together said third and fourth mold parts, overmolding in the closed second mold a second layer, made of plastic or rubber material, in order to fill holes generated by said pins and to lock said single element or said localized elements made of fabric or nonwoven fabric between said two first and second layers, and forming a second intermediate component; and extracting the second intermediate component from the second mold and performing a finishing operation thereon.