WHEEL FOR VEHICLE HAVING EXPANSION FLANGE

摘要

A wheel for a vehicle having an expansion flange is provided to extend contact pressure generated between an expansion flange and a side wall part of a tire in charge of inner pressure in the tire by increasing adhesiveness of the expansion flange with the tire. A curved part(2) shaped as an expansion flange(1) is formed at a straight line(Lm) contacted to an expansion radius(Re) of the flange with a radius(R2) of the flange, and at a radius(Rm) contacted to the radius of the flange to be vertically contacted to the expansion radius. The expansion height of the flange is within section height of a tire of 60 percentages. The maximum width(We) of inner/outer sides in the expansion flange is determined within nominal section width of the tire of Œ2 percentages. The radius of the curved part is contacted with the radius of the flange. The straight line is contacted with the expansion radius of the flange. The radius and the straight line are connected to each other. The contact point of the radius and the straight line is within the expansion height of the flange of 20 to 75 percentages.