| 摘要 |
A tire with a radial carcass reinforcement anchored in each bead and with a crown reinforcement formed of four crossed working plies forming an angle of between 10 DEG and 45 DEG with the longitudinal direction of the tire is improved due to the fact that the working plies form a block of two superimposed pairs of plies of crossed cables, the plies of the first pair forming opposite angles equal to beta and the plies of the second pair forming opposite angles equal to alpha , beta being greater than alpha , the difference beta - alpha being at least equal to the value of the expression h sin ( beta + alpha )/2 |
