Abstract: There is provided a hard disk drive including: a bottom plate including a disk rotating by a motor; and a cover having a first wall member formed thereon, the first wall member inducing an airflow generated at the time of rotation of the disk.

Abstract: A cover for an optical disc drive. The cover includes: a body having a top portion that is configured to cover a disc if the disc is inserted into the optical disc drive, and a pressure structure formed on the body and having an asymmetrical shape.

Abstract: A storage apparatus comprising: a casing forming a housing chamber; a disk drive housed in, at a spacing from, the housing chamber, such that unit outer walls of the disk drive are separated by a clearance from inner walls of the casing; and a buffer member interposed in the clearance between the disk drive and the casing, for absorbing an impact stress. The buffer member is formed of a material having flexibility, and is provided with: a support part fitted to a wall surface of one of either the disk drive or the casing; a hemispherically shaped dome part, formed on the support part; and an abutment part, formed along a top portion of the dome part, abutting on a wall surface of the other of either the disk drive or the casing. The dome part and the support part form, together with the wall surface of the one of either the disk drive or the casing, a sealing chamber sealing in air, whereby the dome part is lent elasticity.

Abstract: The following problem associated with optical pickup devices is solved: the temperature of a laser element is increased by excessive temperature rise in a laser driver circuit and this degrades the quality of writing and reading information to and from an optical disc. In an optical pickup enclosure, there is formed a groove recessed into a U shape, extended from the upper surface thereof opposed to an optical disc to the lower surface of the optical pickup enclosure. An air guide passage through which an air flow is passed is formed of this groove recessed into a U shape and a circuit board fastened to the outer circumferential side of the optical pickup enclosure with a screw. At this time, the laser driver circuit element is attached to the side of the circuit board opposed to the air guide passage. In a radiation cover attached to the upper surface of the optical pickup enclosure and in thermal contact with the laser element, an opening is formed.