Patent ID: 7438102
Filing Date: 2008-10-21
Classification: B60C,Y10T

Abstract:
1. A pneumatic tire comprising a bead portion having a bead base surface which sits on a rim base surface of a rim and a bead outer wall surface supported by a flange surface of the rim, wherein in a tire meridian cross section including a tire axis, the bead outer wall surface includes a rising surface portion which is connected to an outer end of the bead base surface in the axial direction of the tire through an arc bead heel surface and which rises radially outward, and a flange receiving surface portion which diagonally extends from an outer end of the rising surface portion radially outward in the axial direction of the tire, said flange receiving surface portion having a contour of one of in a normal internal pressure state having no load in which the tire is assembled to the rim and a normal internal pressure is charged into the tire, the flange receiving surface portion is not in contact with the flange surface, and in a state in which 50% or more load of a normal load is applied, the flange receiving surface portion first comes into contact with the flange surface.