Patent ID: 7670211

Claim:
A rotating polishing tool in which a substantially cylindrical polishing member is rotatably supported around a central axis thereof, and said polishing member is rotated to polish a subject to be polished with a peripheral surface thereof, wherein said polishing member includes a pair of polishing units at axial opposite ends of said central axis, and an intermediate portion provided between said pair of polishing units, wherein each of said polishing units includes a plurality of laminated substantially circular abrasive cloth/paper sheets each having a shaft insertion opening in the center, said plurality of abrasive cloth/paper sheets are pressingly held by a ring-shaped inner metal fitting inserted through the shaft insertion openings, and said inner metal fitting is formed into a serpentine shape that curves up and down in the axial direction of said central axis to form peripheral edges of the abrasive cloth/paper sheets into a serpentine shape, wherein flanges that pressingly hold said polishing member are placed on opposite outer sides of said polishing units along said central axis, and inner side surfaces of said flanges along said central axis are formed into a serpentine shape corresponding to the serpentine shape of said inner metal fitting, wherein said intermediate portion includes a plurality of abrasive cloth/paper sheets different from the abrasive cloth/paper sheets constituting said polishing units, said abrasive cloth/paper sheets of said intermediate portion being flat abrasive/cloth paper sheets, laminated without any clearance along said central axis, and wherein said abrasive cloth/paper sheets of said intermediate portion are pressingly held along said central axis by said pair of polishing units, and thus the peripheral edges of said abrasive cloth/paper sheets of said intermediate portion are formed into a serpentine shape.