| 摘要 |
<p>A pneumatic radial tire has a pair of opposing bead portions (14). Each bead portion (14) has a bead core (23) and a bead apex (24). At least one carcass reinforcing ply (12) having radially oriented steel cords (22). The at least one carcass reinforcing ply (12) has a main portion (18) and two turnups (20) with one turnup (20) extending from each end of the main portion (18) and having a terminal end (21). The carcass reinforcing ply main portion (18) extends between the opposing bead cores (23) and turnups (20) are located axially outward of the bead core (23) and a portion of the bead apex (24). The tire has two pairs of cord reinforced chippers, one pair adjacent each turnup, each pair having one inner chipper (40) being adjacent and on an axially inner side of the turnup 20 and one outer chipper (30) being adjacent on an axially outer side of the turnup (20). The inner and outer chippers (40, 30) being adjacent the turnup (20) each have a terminal end (41, 31) extending radially outward of the terminal end (21) of the turnup (20).</p> |
