Patent ID: 6684517
Filing Date: 2004-02-03
Classification: G01M

Abstract:
A device for determining geometrical eccentricity defects in a vehicle wheel composed of a wheel rim and a tire mounted on the wheel rim, comprising eccentricity measuring means (7) positionable in contact alternately with the tire (6) and with the wheel rim (5) of the wheel of which the eccentricity is to be measured, a sensor (8) for measuring the angular position assumed by said means (7) about a fixed reference point (9), and means for associating and processing the data measured by said means (7) and by said sensor (8) to determine the angle through which the tire (6) must be rotated on the wheel rim (5) to compensate their errors of shape, wherein said sensor (8) comprises a fixed part (80) carried by a first shaft (23) disposed to be locked to the wheel rim and coaxial therewith, and a movable part (81) rotatably mounted on said first shaft (23).