Wheel rim, for a motor vehicle pneumatic tire, has structured tire bead seats to prevent the tire loosening under high speed and high loading conditions

摘要

The wheel rim, for a motor vehicle pneumatic tire, has two seats (51,52) to hold the tire beads. Each seat has a mantle line with axial inner ends (512,522) on a circle with a diameter (Di) greater than the diameter (De) of the circle for the axial outer ends (511,521). The axial inner side of the first seat (51) is defined by a projection (58) with an outer diameter (Ds) larger than the mean diameter (Dp) of the support surface (56). The axial width (Lg) of the deep bed (55) allows the support surface to pass over the projection.