| 摘要 |
A low-section profile pneumatic radial tire (1) comprising a radial carcass (4), a belt (5), a tread rubber (6) and a pair of sidewall rubbers (7) and having an aspect ratio of not more than 55% is manufactured by using a green tire (11) built through first and second building steps, in which an uncured inner sidewall rubber segment (17L) and an uncured outer sidewall rubber segment (17U) are previously and separately provided so as to correspond to an inner portion (7L) and an outer portion (7U) parted from each sidewall rubber (7) of a tire after vulcanization in a radial direction thereof satisfying that an end of a parting face (Q) located on an outer surface of the sidewall rubber is not more than 1/2 of a section height (SH) of the tire, and the uncured inner sidewall rubber segment (17L) is stuck at the first building step and the uncured outer sidewall rubber segment (17U) is stuck at the second building step. <IMAGE> |
