| 摘要 |
PURPOSE:To efficiently remove the microprojections being present on a magnetic disk surface by pressing a polishing medium via a pressing member having a large inherent oscillation frequency on the surface of a rotating magnetic disk. CONSTITUTION:Contact rubber rollers 4 are held by parallel leaf springs 5 advantageous for increasing the value of a spring constant (k) and are opened/ closed on two sliding bars 8 by the action of tapered pieces 6 provided on an air cylinder 16 to pressurize the polishing tape to a disk 1. A motor plate 14 which supports driving motors 11 is disconnected from the rollers 4 and set in the position where the positional relation between the rollers 4 and a take-up roll 10 is not deviated in order to reduce the weight of the tape head system. The weight of the tape head in such constitution is the weight of the rollers 4 alone and is small and the inherent oscillation frequency of the tape head system is increased by selecting largely the spring constant k. Consequently, the follow-up property of the tape head is improved and the magnetic disk medium having the excellent surface smoothness is obtd. |
