Disk device with damping member of shaft for multi-actuator assemblies
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsMakoto Okamoto, Takuma Kido
Life of this patent
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Abstract
A disk device includes one or more disks, a base shaft, a bearing shaft, first and second bearing units, first and second actuator assemblies, and a damping member. The bearing shaft has a tubular portion fixed around the base shaft. The first and second bearing units are attached around the bearing shaft and aligned in an axial direction of the bearing shaft. The first and second actuator assemblies are coupled to the first and second bearing units, respectively. The damping member is provided between an outer circumferential surface of the base shaft and an inner circumferential surface of the tubular portion of the bearing shaft.
Claims20
A disk device comprising:
- one or more disks;
- a base shaft;
- a bearing shaft having a tubular portion mounted on an outer periphery of the base shaft;
- first and second bearing units that are attached around the bearing shaft and aligned in an axial direction of the bearing shaft;
- first and second actuator assemblies coupled to the first and second bearing units, respectively;
- and
- a damping member provided between an outer circumferential surface of the base shaft and an inner circumferential surface of the tubular portion of the bearing shaft, wherein
- the inner circumferential surface of the tubular portion of the bearing shaft has a recessed region in which the damping member is disposed, and
- the damping member is adhered to the recessed region of the bearing shaft.
A disk device comprising:
- one or more disks;
- a base shaft;
- a bearing shaft having a tubular portion mounted on an outer periphery of the base shaft;
- first and second bearing units that are attached around the bearing shaft and aligned in an axial direction of the bearing shaft;
- first and second actuator assemblies coupled to the first and second bearing units, respectively;
- and
- a damping member provided between an outer circumferential surface of the base shaft and an inner circumferential surface of the tubular portion of the bearing shaft, wherein
- the inner circumferential surface of the tubular portion of the bearing shaft has a recessed region in which the damping member is disposed, and
- a depth of the recessed region is greater than a thickness of the damping member.
Dependencies are inferred from the claim text.