Patent ID: 7631419

Claim:
A disk processing device for processing both surfaces of a disk, said disk processing device comprising: a spindle for holding and rotating said disk; and a processing head with a pair of contact rollers for pressing processing tapes to said both surfaces of said disk; wherein said processing head includes: a first contact roller unit and a second contact roller unit each with oscillating means for causing corresponding one of said contact rollers to move reciprocatingly in a radial direction of said disk held by said spindle; a tape reel unit for supplying and winding up said processing tapes pressed to said both surfaces of said disk through said contact rollers; and tape pressing means for causing said first and second contact roller units to slide, sandwiching said both surfaces of said disk with said contact rollers and pressing said processing tapes onto said both surfaces of said disk; wherein said oscillating means comprises: a slider which is reciprocatingly movable in a radial direction of said disk and to which corresponding one of said contract rollers is attached; and a crankshaft mechanism for reciprocatingly moving said slider in said radial direction of said disk; and wherein said crankshaft mechanism comprises: a crankshaft; crankshaft rotating means for rotating said crankshaft; a sliding plate which is rotatably attached eccentrically to said crankshaft and has a rotary shaft that rotates around said crankshaft if said crankshaft rotates; a slidable shaft which is slidably attached to said sliding plate and has one end that is on the side of said sliding plate and is a free end and the other end that is rotatably attached to said slider; and a fulcrum part provided on said slidable shaft.