Patent ID: 8171790

Claim:
An apparatus for measuring forces generated by an unbalance of a vehicle wheel, comprising a horizontally oriented measuring shaft ( 1 ) which is supported rotary about its shaft axis ( 2 ) in a rotary mounting ( 3 ) on a stationary machine frame ( 4 ) and which is adapted such that a vehicle wheel ( 5 ) is fixed onto it for a measurement operation, wherein the measuring shaft ( 1 ) is movably guided in a vertical direction on the stationary machine frame ( 4 ) between a first vertical position in which the measurement operation is conducted and a second vertical position in which the shaft axis is brought into alignment with a wheel axis ( 6 ) of the uprightly positioned vehicle wheel ( 5 ), characterized in that the measuring shaft ( 1 ) is designed to be moved to a third vertical position above its first position to perform a balancing operation on the vehicle wheel ( 5 ) and a control unit ( 9 ) controls the rotation of the measuring shaft ( 1 ) onto which the to be balanced vehicle wheel ( 5 ) is fixed during the movement of the measuring shaft ( 1 ) from its first position to its third position such that the vehicle wheel ( 5 ) is rotated into an angular correction position for performing the balancing operation on the vehicle wheel ( 5 ).