Abstract: A magnetic disk apparatus which protects magnetic disks from being damaged by an external shock applied thereto. The magnetic disk apparatus includes a shock absorber provided in the enclosure for absorbing a shock of the magnetic disk caused by vibration of the magnetic disk. Alternatively or additionally the magnetic disk apparatus includes a shock absorber for covering a surface of the enclosure which houses the disk drive components.

Abstract: The present invention relates to a storage device in which information is written and read using a head movable relative to a rotating disk medium encased in a housing. The housing has a base and a cover. Openings formed by a predetermined number of radial beams are provided in at least one of the cover and the base. Preferably, the beams extend between the periphery and a central area of the device.

Abstract: Disclosed is a magnetic disk apparatus which protects magnetic disks against external and internal magnetic fields and electromagnetic waves. This magnetic disk apparatus comprises at least one magnetic disk; rotation unit for rotating the magnetic disk; a magnetic head for recording and reproducing information on and from the magnetic disk; an actuator for supporting the magnetic head and moving the magnetic head to a given position on the magnetic disk; and an enclosure for covering those individual components. According to one aspect of this invention, the enclosure is made of a ferromagnetic material. According to another aspect of this invention, the enclosure is made of a non-magnetic material and a shield layer made of a ferromagnetic material is provided at least in that region of an inner wall of the enclosure which corresponds to the movable range of the magnetic head.