Vehicle Wheel for Passenger Cars

摘要

Vehicle wheel comprising a rim part and a disc part formed from a one-piece sheet metal blank and including a central portion with bolt holes and a plurality of radially extending spoke arrangements merging into a disc edge delimiting together with the spoke arrangements ventilation apertures which extend over the region between the edge webs and the disc edge. In order to create steel wheels with four-hole fixing in which high strength and stiffness are achieved the number of spoke arrangements and of bolt holes is four and these are in each case arranged mirror-symmetrically with respect to a common radial line, with the width of each spoke arrangement narrowing radially towards the outside and each ventilation aperture extending in the circumferential direction over an arc length of more than ⅙ of the circumference of the disc part. Further, each ventilation aperture is having on a radial line a maximum radial clear width which is equal to or preferably greater than the radial width of the metal portion of the disc part on the same radial line.

主权项

1. A vehicle wheel for passenger cars comprising: a rim part for receiving a tyre and a disc part which is connected to the rim part and is formed from a one-piece sheet metal blank by shaping and cutting or punching, which disc part includes a central portion having bolt holes for wheel bolts, a central aperture for a vehicle hub and a plurality of radially extending spoke arrangements, formed by shaping the sheet metal, for transmitting force between vehicle hub and rim part, each spoke arrangement being provided with a radially extending central web which merges on each side into a radially extending lateral web, bent outwardly from the plane of the central web, and then into an edge web bent back again with respect to the lateral web, radially outer ends of the central webs and of the lateral webs merging into a circumferential annular disc edge oriented precisely parallel or substantially parallel axially to a wheel axis and connecting all the spoke arrangements (15) to one another, which disc edge is formed integrally from the sheet metal, forms a connecting part for the connection between the rim part and the disc part and delimits in each case, together with the edge webs of adjacent spoke arrangements, ventilation apertures which extend over a region between the edge webs and the disc edge, wherein the number of spoke arrangements and the number of bolt holes is four and a spoke arrangement and a bolt hole are in each case arranged mirror-symmetrically with respect to a common radial line, a width of each spoke arrangement constantly narrowing radially towards an outside, starting from the central portion, each ventilation aperture extending in a circumferential direction, at a narrowest point of the spoke arrangements, over an arc length of more than ⅙ of a circumference of the disc part, and each ventilation aperture having in a radial direction, on a radial line located midway between two adjacent spoke arrangements, a maximum radial clear width which is equal to or greater than a radial width of the metal portion of the disc part on the same radial line.