PURPOSE: To reduce a vibration deriving from unbalance of dimension and rigidity, by obtaining a static balance of rim and tire from a dynamic balance of the wheel, and installing the tire to the rim in a position with a direction of the static balance of the tire made facing 180° opposite side to that of the rim.
CONSTITUTION: With a measurement of dynamic balance aWb in front and rear of a tire wheel 1 and a rim 2 performed by a balancing machine, a static balance A of the tire wheel 1 is obtained from the dynamic balance a, b, and a static balance R of the rim 2 obtained from the dynamic balance c, d. Subsequently, with a static balance T of a tire 3 obtained from a difference between the static balance A and the static balance R, the tire 3 is installed to the rim 2 in such manner with a direction of the static balance T made facing 180° opposite side (as shown by broken line in the drawing) to that of the static balance R.
FUKUYAMA HIROSHI
YOKOTA YASUSHI
