For a heavy-vehicle tire having beads strengthened.

摘要

Tire (10) for heavy vehicle comprising a carcass reinforcement (60) radial anchored in each of the beads (50) to an anchoring structure (700) comprising a reinforcement of circumferential reinforcement (70), the carcass reinforcement (60) being partly wound around the anchoring structure (700), the tire (10) also comprises a frame of the coupling (150) comprising a first part (151) in contact with the carcass reinforcement (60) and is extended by a second part (152) in contact with the anchoring structure (700) up to a point (157) radially to the outside of the anchoring structure (700), located axially between the point (702) which is axially furthest to the inside and the point (704) which is axially furthest to the outside of the anchoring structure (700), the tire (10) also comprises a frame of the rigidity (160) enveloping the reinforcement of coupling (150) and passing radially to the inside of the anchoring structure (700) and of the reinforcement of coupling (150), in which the end point (166) axially outside of said reinforcement of the rigidity (160) is located a radial distance dr of the point (73) radially furthest to the inside of the reinforcement of circumferential reinforcement (70), the radial distance dr being greater than or equal to 0.8 times the radial distance ds between the points (71,73) radially furthest to the inside and radially furthest to the outside of the reinforcement of circumferential reinforcement (70) and less than or equal to 1.2 times the radial distance ds.