| 摘要 |
PNEUMATIC TYRE A pneumatic tyre (1) comprises a tread portion (2), a pair of sidewall portions (3), and a pair of bead portion (4) each with a bead core (5) therein, wherein in a tyre meridian section including a tyre axis under a standard state that the tyre is mounted on a standard rim and inflated to a standard pressure but loaded with no tyre load, the tyre has a pair of sidewall profiles each extending from a tyre maximum-width point (Wm) in an axial direction of a tyre to a tread edge (Te), each sidewall profile comprises a convex arc part (9) and a concave arc part (10), the convex arc part has a center (Cl) of a radius of curvature located in a side of a tyre inner cavity and extends from the tyre maximum-width point to radially outside of the tyre, the concave arc part has a center (C2) of the arc located outside of the tyre and extends from the convex part to the tread edge, the concave arc part is located in axially outside than an extended line which extends radially outside of the tyre from the convex arc part, and the tread edge is located in the axially outside of the tyre than the axially innermost point of the concave arc part. ca, 0Oc |
