| 摘要 |
<p>A disk supporting device which supports a disk that serves as such a recording medium as the optical disk device or magneto-optical disk device. The disk supporting device is constituted of the rotating shaft (2) of a driving motor (1) which is protruded upward from the motor (1), upper and lower bearings (9 and 10) which are respectively provided above and below the motor (1) and rotatably support the shaft (2), a thrust bearing (12) which supports the bottom section of the shaft (2), a turntable (4) which is coaxially put on the shaft (2) on the projecting side of the shaft (2) and mounts a disk (5), a disk holding body (13) having a disk holding section (13a) which holds the disk (13a) in the axial direction of the shaft (2) on the bottom side and a spherical projection (13b) which is provided coaxially with the shaft (2) on the top side, a motor mounting base (3) for mounting the motor (1), a pressurizing spring (8) which is provided across the base (3) and the pressurizing arm (14) described below, and the arm (14) one end of which is attached pivotally to the base (3) and the other end of which has an inclined section (14a) inclined at an angle between 95° and 104° from the axial center of the shaft (2) and which pressurizes the projection (13b) of the disk holding body (13) against the rotating shaft in the axial direction of the shaft (2) and the direction perpendicular to the axial direction with the inclined section (14a).</p> |
