| 摘要 |
A means for mounting an exchangable disk pack. The disk pack's hub includes an open ended stub with two retractable steel balls mounted adjacent the open end. The disk drive's spindle has a coaxial recess for receiving the stub. The recess has an interior annular groove adapted for registration with the balls. The stub is inserted into the recess when mounting the disk pack. When the hub and spindle are in abutment, the balls are positioned just anterior to the annular groove. The stub is mounted on a diaphragm mounted on the hub. Depression of the diaphragm moves the balls into registration with the annular groove. The balls then move from their retracted condition and into the groove under pressure from a push rod moveably mounted in the spindle recess. After the balls have been pushed aside, the push rod pops up between them and prevents their retraction from the annular groove. The lodging of the balls in the annular groove prevents the stub from being withdrawn from the recess. Disconnection is provided by withdrawing the push rod from between the balls. This allows the balls to retract from the annular groove and the stub to be withdrawn from the spindle's recess.
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