Patent ID: 6076586
Filing Date: 2000-06-20
Classification: B60C

Abstract:
An apparatus for improving the running quality of vehicle wheels of different sizes having air tires on rims, said apparatus comprising a machine frame (2), a support housing (5), a drive (3) movably securing said support housing to said machine frame (2) for moving said support housing in a pressure application direction, at least one pressure application ring (26) mounted in said support housing (5), said pressure application ring (26) comprising a plurality of position adjustable ring sectors mounted in a ring row in said support housing (5) for adjusting said ring sectors radially for increasing or decreasing a diameter of said pressure application ring (26) in accordance with said different sizes, each of said ring sectors having a projection (8) for contacting a tire flank surface (9, 21), said apparatus further comprising an adjusting mechanism (4) for shifting said ring sectors (7) radially back and forth with at least a radial movement component between a smallest diameter (D.sub.MIN) ring sector first position for said pressure application ring (26) and a largest diameter (D.sub.MAX) ring sector second position for said pressure application ring (26) and to any position between said first and second positions, and wherein said adjusting mechanism comprises a further drive (12) positioned for cooperation with and adjustment of said ring sectors (7) in synchronism with each other.