Patent ID: 6604564
Filing Date: 2003-08-12
Classification: B60C

Abstract:
A tire tread for a heavy vehicle, comprising a plurality of tread pattern elements arranged so as to form a tread pattern having a preferred direction of travel, said elements having a contact face, two lateral faces, a leading face and a trailing face, the leading and trailing faces intersecting the contact face along a leading ridge and a trailing ridge, the leading ridge corresponding to that ridge of the block which first comes into contact with the ground, the leading and trailing faces having different inclinations, whereinthe trailing face of at least one tread pattern element is formed of two parts which divide said trailing face into a lower part and an upper part in the direction of the height of the element, the upper part, extending from the contact face of said element, is inclined relative to the contact face so as to form an angle &bgr; less than 90Â°, the lower part, extending the upper part towards the inside of the tread, is oriented so as to form an angle &dgr; greater than 90Â° with said contact face and is provided with at least one recess extending into the block at least as far as a plane perpendicular to the contact face and passing through the innermost point, in the direction of the thickness of the tread, of the lower part of the trailing face.