Patent ID: 8038224
Filing Date: 2011-10-18
Classification: B60B

Abstract:
1. A motor-vehicle wheel structure, comprising a wheel rim and a wheel disk having an outer circumferential border, which is bent and welded within the rim, said disk having a central portion with a circumferential series of holes for engagement of bolts for fixing the wheel to a wheel support, said central portion of the wheel disk being radiused to the aforesaid outer circumferential border by an intermediate projecting annular portion of the wheel disk having in cross section an arched conformation projecting outwards, wherein welded on an outer face of said wheel disk is an auxiliary disk having a substantially planar conformation, an outer border of which is welded to the main disk substantially in a position corresponding to the apex of the aforesaid projecting annular portion in such a way as to extend parallel to and at a distance from the central portion of the main disk, said auxiliary disk integrating tubular columns projecting from the inner face of the auxiliary disk and welded to the central portion of the main disk so that they are co-axial to the aforesaid holes for the fixing bolts.