Disk driving motor and chcuking mechanism for disk drive apparat

Details Disk driving motor and chcuking mechanism for disk drive apparat Disk driving motor and chcuking mechanism for disk drive apparat

1994-04-26

1996-12-03

Denion, Thomas E.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9912, G11B 1702

Patent

active

055814239

ABSTRACT:
A disk drive apparatus includes a spindle for engagement with a central hole of a disk hub of a magnetic disk, a rotary member fixed to the spindle, a chucking magnet provided on the rotary member for attracting the disk hub, and a chucking lever pivotally provided on the rotary member which comes at its one end into engagement with a drive hole formed in the disk hub to rotate the disk. When the chucking lever is not chucking the disk, the chucking lever is pivotal about its pivot support point within a given angle, but its movement in the axial direction of the spindle is prevented. The pivot support point section is provided with a disengagement preventive lever which acts in relation to the rotary member to prevent the chucking lever from disengaging from the rotary member.

REFERENCES:
patent: 4697215 (1987-09-01), Tsukahara
patent: 4796140 (1989-01-01), Wakabayashi et al.
patent: 4896232 (1990-01-01), Sugawara
patent: 4899244 (1990-02-01), Morse
patent: 5103358 (1992-04-01), Munekata
patent: 5138606 (1992-08-01), Nishizawa
patent: 5151836 (1992-09-01), Ichihara
patent: 5161075 (1992-11-01), Kanai et al.
patent: 5303102 (1994-04-01), Aruga et al.
patent: 5303104 (1994-04-01), Aruga et al.

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