| 摘要 |
PCT No. PCT/US96/16355 Sec. 371 Date Oct. 29, 1998 Sec. 102(e) Date Oct. 29, 1998 PCT Filed Oct. 15, 1996 PCT Pub. No. WO98/16810 PCT Pub. Date Apr. 23, 1998A method for correcting the balance of a pneumatic tire mounted in a tire uniformity machine modified for balance screening such tires. After balance screening of the tires, tires which are unacceptably imbalanced are maintained at the second rotational speed of the balance screening routine. A grinding wheel is brought to the position of maximum radial and/or lateral deflection causing tire material to be removed from deflected portions of the tire. The tire is once again balance checked and if the balance is still unacceptable, the grinder is advanced an incremental unit of distance toward the center of the tire, more tire material is removed, and the balance is again checked. The steps of advancing the grinder, removing material, and checking the tire imbalance are performed until the tire is found to have acceptable static and couple imbalance. Another aspect of the invention is to grind a tire on a tire uniformity machine to bring the tangential force variations to within an acceptable degree of tangential force variation.
|
