| 摘要 |
A pneumatic tire (30) has a tread portion (31), a pair of sidewall portions (21) and a pair of bead portions (33). Each bead portion (33) has a bead core (35), and each bead core (35) has a radially inner surface defining a bead base. Radially inward of, and wider than, each bead base is a bead seat profile (23). The bead seat profile (23) provides an interference fit between the tire (30) and the ledge (42) of the wheel rim (40) to which the tire (30) is to be mounted. The bead seat profile has an interference distribution which has a localized concavity (20) at an axial location at or near the center of the bead core (35) when the tire (30) is mounted and inflated. The disclosed bead seat profile (23) can increase the tire's rim slip resistance without causing difficulty in mounting, or alternatively can make mounting the tire (30) easier without sacrificing the rim slip resistance. <IMAGE> |
