Patent ID: 7551402
Filing Date: 2009-06-23
Classification: G11B

Abstract:
1. A magnetic disk drive comprising: a disk assembly including at least one magnetic disk medium; a head assembly including at least one magnetic head for writing magnetic signals onto and reading out magnetic signals from said at least one magnetic disk medium, and at least one arm that supports said at least one magnetic head; a ramp assembly including at least one ramp which guides said magnetic head to a retreat position when said magnetic head is moved away from said magnetic disk medium; and shroud fins as many in number as there actually are said magnetic disk media, each shroud fin being disposed integrally with said ramp assembly and in association with and next to one of said magnetic disk media in order to guide an air stream produced by rotation of said disk assembly, wherein each of said shroud fins includes a tapered region reduced in thickness as said shroud fin extends in a direction away from and without covering any part of said magnetic medium associated with said shroud fin.