A bead portion (4) of a pneumatic tire (1) includes a vertical rising surface portion (Sw1) which is connected to a bead base surface (Sb) through an arc bead heel surface (Sh), and a straight or convex arc flange receiving surface portion (Sw2) which is d...

A supporting apparatus (313) is installed on a safe tyre (30), providing a backup support when this safe tyre (30) has an unexpected pressure loss and hasn't enough ability to support a vehicle. By this supporting apparatus (313) of the present invention, ...

A pneumatic tire (1) comprises a pair of bead portions (4) each having a bottom face (Sb) and an axially outer side face (Sw) which contact with a bead seat (Rb) and a flange (Rf) of a wheel rim, respectively, wherein the axially outer side face comprises:...

A pneumatic tire (10) has a tread portion (11), a pair of sidewall portions (13) and a pair of bead portions (14). Each bead portion (14) has a bead core (15), and each bead core (15) has a radially inner surface defining a bead core base (31). Radially in...

A pneumatic tire which comprises a tread portion (2), a pair of bead portions (4) adapted to a wheel rim, a pair of sidewall portions therebetween, at least one of the sidewall portions (3) provided with an axially protruding rim protector (9), the rim pro...

A pneumatic tire (1) to be mounted on a 15-degree-taper rim, comprises a tread portion (2), a pair of sidewall portions (3), a pair of bead portions (4) each with a bead core (5) therein, and a carcass (6) comprising a ply of steel cords, wherein in a meri...

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, a...