公开(公告)号：DE4126304A1

公开(公告)日：1992-02-13

申请号：DE4126304

申请日：1991-08-08

Applicant: KAO CORP

Inventor： SAITO TADASHI ,  KISHINE NOBUYUKI ,  KANAI TAKAO ,  OKANO MIKIO

IPC: G11B23/033 ,  G11B23/50

公开(公告)号：GB2246903A

公开(公告)日：1992-02-12

申请号：GB9116693

申请日：1991-08-02

Applicant: KAO CORP

Inventor： SAITO TADASHI ,  KANAI TAKAO ,  OKANO MIKIO

IPC: G11B23/033 ,  G11B23/50

Abstract: A magnetic disk cartridge retains a rotational magnetic disk (1) in a case through liners (5) which contact the associated surfaces of the disk and each nave multiple long protrusions (7) formed almost uniformly and almost in parallel to one another on the whole surface of the disk side. As the magnetic disk rotates, the angle of the disk surface contacting the long protrusions can gradually change, thus ensuring removal of dist from the disk. In addition, this structure can reduce the frictional resistance between the liner's surface and magnetic disk, which contributes to faster rotation of the disk. In modifications the protrusions may take other shapes than linear, eg zigzag, sinusoidal or sawtooth, providing the same effect.