Patent ID: 6478660
Filing Date: 2002-11-12
Classification: B24B

Abstract:
A polishing apparatus for polishing outer circumferential portions of a circular plate-shaped work, said apparatus including a chuck means which is provided for chucking the circular plate-shaped work having chamfered outer circumferential edges formed on the front and back sides thereof and which is also capable of turning the circular plate-shaped work about the axis thereof, the apparatus also including a pair of edge polishing members having arcked working surfaces for polishing the edges, at least one outer periphery surface polishing member having an arcked working surface for polishing the outer periphery surface of the work,wherein the pair of edge polishing members are arranged in a manner such that the respective axes thereof are inclined with respect to the axis of the work held on the chuck means, so that the working surface of one polishing member is in contact with the edge on the front side of the work, while the working surface of the other polishing member is in contact with the edge on the back side of the work, wherein the outer periphery surface polishing member is located in a position different from the edge polishing members, in a manner such that the axis of the outer periphery surface polishing member is parallel to the axis of the work.