Patent ID: 6715351
Filing Date: 2004-04-06
Classification: G01M

Abstract:
In a wheel balancer having a shaft adapted for receiving a wheel assembly, said shaft having a longitudinal axis and being rotatable about said axis so as to rotate a wheel assembly removably mounted thereon; a sensor assembly for measuring rotation of the shaft about its longitudinal axis; a drive system operatively connected to the shaft for controlling rotating said shaft about its longitudinal axis, thereby to rotate the wheel assembly; at least one force transducer configured for measuring imbalance of the wheel assembly; and a central processing unit configured to control the drive system and to utilize the measured imbalance to determining the magnitude and placement parameters of at least one imbalance correction weight; the improvement comprising:an adjustable wheel data acquisition arm configured for adjustment, in a plane perpendicular to the shaft longitudinal axis, from at least a first operating position adapted for use with wheel assemblies having a first range of inner diameters, to at least a second operating position adapted for use with wheel assemblies having a second range of inner diameters which differ, at least in-part, from said first range of inner diameters.