公开(公告)号：DE3374477D1

公开(公告)日：1987-12-17

申请号：DE3374477

申请日：1983-12-21

Applicant: IBM

Inventor： CAREY PAUL DAVID ,  CUTTS STANLEY JOHN ,  HEATH JOHN STEWART ,  WHITE DAVID ERIC ,  EVANS DAVID ANTHONY

IPC: G11B17/32 ,  G11B23/033 ,  G11B23/02

Abstract: A disc cartridge file uses a cartridge (1) which is rigid enclosure containing a flexible information storage disc (2) mounted in a drive hub (3). One wall (11) has a central hub drive aperture (13) and an arcuate, radially-extending access slot (15) for a read/write transducer. In operation, the disc flies over the inner surface of the apertured wall or an air bearing. This surface is planar over a major portion including the access slot (15) but has a smoothly contoured raised land (29) bordering the slot on the downstream side. The land (29) extends the range of penetration over which the transducer is coupled, partic. at the outer dia. of the disc.