Fine head positioning system for a tape backup device

Details Fine head positioning system for a tape backup device Fine head positioning system for a tape backup device

1989-07-11

1990-07-24

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360109, G11B 554

Patent

active

049438778

ABSTRACT:
A tape head positioning system for a tape cartridge drive data backup system having a stepper motor with a lead screw connected to the stepper motor and a follower nut threadedly engaging the lead screw. The follower nut has a formed slot for receiving one end of a lever arm. The other end of the lever arm engages in a formed slot a head mounting assembly carrying the tape head and the lever arm is pivoted a first predetermined distance from the first end and a second predetermined distance from the second end. The ratio of the first predetermined distance to the second predetermined distance determines a mechanical advantage for the system thereby causing an inexpensive coarser stepper motor to effectuate fine adjustments of the tape head.

REFERENCES:
patent: 3556534 (1971-01-01), Bara et al.
patent: 3715523 (1973-02-01), Rousseau
patent: 4313143 (1982-01-01), Zarr
patent: 4630145 (1986-12-01), Thompson et al.
patent: 4647994 (1987-03-01), Irwin et al.
patent: B14647994 (1988-11-01), Irwin et al.
patent: 4713707 (1987-12-01), Heizmann
patent: 4717979 (1988-01-01), Ichinose
patent: 4747004 (1988-05-01), Kukreja et al.
patent: 4750068 (1988-06-01), Akasaki et al.

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