Disk device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorTomoyuki TOKIZAKI
Life of this patent
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Abstract
A disk device according to one embodiment includes a base, a first cover, a second cover, and a damper. The base includes a bottom surface, a side wall protruding in a first direction from the bottom surface, and a support surface located at an end of the side wall in the first direction. The first cover is attached to the base to close the inner space. The second cover is joined to the base while being supported by the support surface, to cover the first cover. The damper includes a constrained layer in-between the first cover and the second cover and a viscoelastic material between the first cover and the constrained layer. The constrained layer includes a smaller-thickness part extending along the support surface and a larger-thickness part connected to the smaller-thickness part.
Claims16
A disk device comprising:
- a magnetic disk;
- a base with an inner space in which the magnetic disk is disposed, the base including
- a bottom surface facing the magnetic disk,
- a side wall protruding in a first direction from the bottom surface, to surround the magnetic disk, and
- a support surface located at an end of the side wall in the first direction,
- the inner space defined by the bottom surface and the side wall;
- a first cover attached to the base to close the inner space;
- a second cover being joined to the base while being supported by the support surface, to cover the first cover;
- and
- a damper including
- a constrained layer in-between the first cover and the second cover, and
- a viscoelastic material interposed between the first cover and the constrained layer,
- wherein the constrained layer includes:
- a smaller-thickness part extending along the support surface, and
- a larger-thickness part being thicker than the smaller-thickness part in the first direction and connected to the smaller-thickness part.
A disk device comprising:
- a magnetic disk;
- a base with an inner space in which the magnetic disk is disposed, the base including
- a bottom surface facing the magnetic disk, and
- a side wall protruding in a first direction from the bottom surface, to surround the magnetic disk,
- the inner space defined by the bottom surface and the side wall;
- a first cover attached to the base to close the inner space;
- a second cover being joined to the base, to cover the first cover;
- and
- a damper including
- a constrained layer in-between the first cover and the second cover, and
- a viscoelastic material interposed between the first cover and the constrained layer,
- wherein the constrained layer includes:
- a larger-thickness part, and
- a smaller-thickness part being thinner than the larger-thickness part in the first direction, located between the larger-thickness part and a joint between the base and the second cover, and connected to the larger-thickness part.
Dependencies are inferred from the claim text.