Disk chucking mechanism having a fan-shaped driving pin

Details Disk chucking mechanism having a fan-shaped driving pin Disk chucking mechanism having a fan-shaped driving pin

2007-09-18

2007-09-18

Cao, Allen (Department: 2627)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

Reexamination Certificate

active

11065820

ABSTRACT:
In a disk chucking mechanism for use in a flexible disk drive adopting a spindle motor (300) of a Hall sensor-less method, a driving pin (317A) freely received in a driving oval hole (46b) of a flexible disk (40) has a shape (shape of fan) where a catch factor portion is cut so that the driving pin (317A) is not in contact with an inner edge of the driving oval hole (46b) as much as possible when a rotor (310A) of the spindle motor (300) rotates in the opposite direction (counterclockwise).

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