Rotating device
AssigneeSamsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
InventorsHirotake NISHINO, Akira Suzuki, Kazuyoshi Nagai
Life of this patent
Estimating the term…
Abstract
A rotating device is provided with: a hub that is rotatably supported by the base and on which a recording disk is to be mounted; a yoke that is fixedly provided on the hub and is configured to hold a magnet; a bearing unit in which one end thereof is fixedly provided on the base and in which the other end thereof is configured to hold the hub; and a coil that is fixedly provided on the base and is configured to generate electromagnetic interaction with the magnet. The hub has a screw hole in which a screw for fixing a clamper, which is used to fix the recording disk to the hub, to the hub is screwed. The screw hole penetrates the hub. The yoke is configured such that the yoke covers one end of the screw hole.
Claims20
A rotating device comprising:
- a base;
- a hub that is rotatably supported by the base and on which a recording disk is to be mounted;
- a yoke that is fixedly provided on the hub and is configured to hold a magnet;
- a bearing unit in which one end thereof is fixedly provided on the base and in which the other end thereof is configured to hold the hub;
- and
- a coil that is fixedly provided on the base and is configured to generate electromagnetic interaction with the magnet,
- wherein the hub has a screw hole in which a screw for fixing a clamper, which is used to fix the recording disk to the hub, to the hub is screwed,
- wherein the screw hole penetrates the hub, and
- wherein the yoke is configured such that the yoke covers one end of the screw hole.
A rotating device comprising:
- a base;
- a hub that is rotatably supported with respect to the base and on which a recording disk is to be mounted;
- a bearing unit in which one end thereof is fixedly supported by the base and in which the other end thereof is configured to hold the hub;
- a yoke that is fixedly supported by the hub and is configured to hold a magnet;
- and
- a coil that is fixedly supported by the base and is configured to generate electromagnetic interaction with the magnet;
- wherein a projection area of the yoke in the axial direction covers a projection area of the coil in the axial direction.
A rotating device comprising:
- a base;
- a hub that is rotatably supported by the base and on which a recording disk is to be mounted;
- a yoke that is fixedly provided on the hub and is configured to hold a magnet;
- a bearing unit in which one end thereof is fixedly provided on the base and in which the other end thereof is configured to hold the hub;
- and
- a coil that is fixedly provided on the base and is configured to generate electromagnetic interaction with the magnet,
- wherein the yoke is interposed between the bearing unit and the hub.
Dependencies are inferred from the claim text.