Heavy Goods Vehicle Tire

A heavy goods vehicle tire, configured to be mounted on a rim with inclined seats, the seats of which are extended by rim hooks which comprise, in radial section, a part in the form of a circular arc, the tire comprising:

• a crown;
• two beads each comprising an annular reinforcing structure;
• and
• at least one radial carcass reinforcement which extends from one bead to the other and which is anchored in the two beads by being wrapped around the annular reinforcing structure, so as to form, within each bead, an incoming portion and a wrapped-around portion;
• the tire being configured in such a way that, when the tire is mounted on the rim and inflated, in at least one of the beads the following three conditions (A) to (C) are met:
• (A) an angle α (alpha) formed between:
• (a) the straight line L1 connecting:
• (i) the center of the circular arc forming the rim hook, and
• (ii) the radially outermost point of the wrapped-around portion of the carcass reinforcement;
• and
• (b) the axial direction,
• is greater than or equal to a first angle α1 of 30°, and less than or equal to a second angle α2 of 60°, the angle α (alpha) being measured in the clockwise direction starting from the straight line L1;
• (B) the minimum distance D between:
• (a) the incoming portion of the carcass reinforcement, and
• (b) the free end of the wrapped-around portion of the carcass reinforcement is less than or equal to 50% of the maximum distance Dmax between the incoming portion and the wrapped-around portion of the carcass reinforcement, this distance being measured in a direction parallel to L1;
• and
• (C) the tire further comprises, axially adjacent to the carcass reinforcement, an additional reinforcement armature the reinforcements of which are inclined by an angle of less than 45° with respect to the circumferential direction, and in which a third angle β formed between:
• (a) the straight line L2 connecting:
• (i) the centre of the circular arc forming the rim hook, and
• (ii) the radially outermost point of the additional reinforcement armature;
• and
• (b) the axial direction
• is greater than or equal to said second angle α2, and a fourth angle γ formed between:
• (a) the straight line L3 connecting:
• (i) the centre of the circular arc forming the rim hook, and
• (ii) the radially innermost point of the additional reinforcement armature;
• and
• (b) the axial direction
• is less than or equal to the said first angle α1.