Patent ID: 8602849

Claim:
A finishing device for finishing a workpiece surface, comprising: a finishing belt; a guide unit for guiding the finishing belt, said guide unit having a cup-shaped guide surface which bounds a receiving zone for a workpiece and along which the finishing belt is guided or guidable between an entry zone and an exit zone, said guide unit including at least two separate guide members which have each a surface area, said surface areas of the guide members jointly defining the guide surface and being movable relative to one another, wherein the guide members are movable between an idle position and an operative position, with the guide surface extending in the idle position of the guide members between the entry zone and the exit zone over a first circumferential angle which permits introduction of the workpiece into the receiving zone and discharge of the workpiece from the receiving zone, and with the guide surface extending in the operative position of the guide members for treating the workpiece over a second circumferential angle which is greater than the first circumferential angle and; a force-application mechanism for holding the guide members in the idle position without impact of the workpiece.