Bridgestone Corporation

Bridgestone Europe Nv/sa

Beatrice Mellara

Pasquale Agoretti

Giuseppe Pezzullo

Claudio D'Alfonso

Giuseppe Rodriquez

Marco Ballatore

Giampiero Pavoni

Carlo Fabrizi

Claudio D'alfonso

Tread for a pneumatic tyre comprising a sipe having a sipe extension (L) and a sipe depth (P) along a direction of wear (U), wherein said sipe has at least two sections (S, S) along said direction of wear (U) having respective differentiated conformations, such that an intersection profile (P, P) between the sipe and a surface (T, T) parallel to the contact surface of the tread is different for each of said at least two sections (S, S), wherein at least one surface section (S) of said at least two sections (S, S) has a depth (PS) that is variable along said sipe extension (L), said two sections (S, S) being connected by a transition section (S) defining a transition line (TL) between the respective sections (S, S), said variable depth (PS) of said surface section, presenting a maximum depth (PSMAX) and a minimum depth (PSMIN), and wherein the surface section (SI) has a twisted configuration.

Tread for a pneumatic tire and a pneumatic tire

Pneumatic tyre () comprising a carcass ply (), two ring beads (), a tread strip (), a tread belt () comprising at least two tread plies (), an innerliner () and an additional functional material layer () arranged between the innerliner () and the inner cavity () of the pneumatic tyre (), wherein between the innerliner () and the layer of additional functional material () a net layer () is interposed, which facilitates the removal thereof during disposal at the end-of-life of the pneumatic tyre.

Pneumatic tyre with elements for the easy removal of additional layers

A tread strip made of at least one rubber-based material, and having at least one longitudinal groove bounded by a bottom wall and by two lateral walls on opposite sides of the bottom wall; wherein a number of pins seamlessly project from at least one of the walls of the longitudinal groove, and are made of the same rubber-based material than the tread strip.

Tread strip with grooves featuring noise-reducing means

Growing community of inventors

Rome, Italy

Beatrice Mellara