Rolling bars with grooves on the pavement and the pavement

摘要

The invention relates to a tread made of a rubber-like material for a tire intended for winter movements. The tread comprises a plurality of pavers (1), each pavement comprising a contact face adapted to contact the ground when the tire is rolling, the contact face having a plurality of lamellae (3) formed therein and a plurality of thin grooves (5) shallower than the slats. Each block (1) comprises at least one side face (4), this side face is covered by a covering material (7), the covering material (7) having a modulus of elasticity which is greater than the modulus of elasticity rubber-like material constituting the pavement (1).