Disk device with magnetic recording media and improved impact resistance
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorMio Okada
Life of this patent
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Abstract
According to one embodiment, a disk device includes a housing, a plurality of magnetic recording media disposed in the housing in a multi-layered manner with intervals therebetween and a plurality of spacer rings, one of the spacer rings being disposed between each adjacent pair of the magnetic recording media. At least one of an uppermost magnetic recording medium and a lowermost magnetic recording medium includes a substrate having a rigidity higher than that of substrates of the other magnetic recording media, and one or more of the plurality of spacer rings is in contact with the magnetic recording media including the substrate having the higher rigidity, and has a thermal expansion coefficient different from a thermal expansion coefficient of the other spacer rings.
Claims9
A disk device comprising:
- a housing including a bottom wall and a cover opposing the bottom wall;
- a plurality of magnetic recording media disposed in the housing in a multi-layered manner to be coaxial with each other with intervals therebetween;
- and
- a plurality of spacer rings, one of the spacer rings being disposed between each adjacent pair of the plurality of magnetic recording media,
- at least one of an uppermost magnetic recording medium adjacent to the cover and a lowermost magnetic recording medium adjacent to the bottom wall comprising a substrate having a rigidity higher than that of substrates of the other magnetic recording media, and
- one or more of the plurality of spacer rings being in contact with the magnetic recording media comprising the substrate having the higher rigidity, and having a thermal expansion coefficient different from a thermal expansion coefficient of the other spacer rings.
Dependencies are inferred from the claim text.