Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1996-03-26
1998-03-31
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360105, G11B 554, G11B 2108
Patent
active
057345287
ABSTRACT:
The present invention provides an improved actuator arm assembly including scalloped locking flanges with indentations for longitudinal, perpendicular, and torsional support, an injection molding for precisely locating and fixing a motor coil bobbin, motor coil wires, magnetic latch striker plate, and a crash stop to an actuator arm. Apertures on the actuator arm allow the plastic molding to pass through and lock the actuator arm to the motor coil bobbin together. The magnetic latch striker plate fixably parks the actuator arm in the disc drive assembly. Locating apertures of various shapes in the motor coil bobbin adds further stability and aids in interlocking the plastic molds around the motor coil bobbin. Furthermore, to reduce the height of the disc drive, protect the lead wires from being unduly stressed during the formation of the mold, and increase wire strength to tolerate stresses during testing and assembly, another embodiment of the invention utilizes insulating sleeves around the lead wires. Thus, after forming the lead coils from a molded coil mounted at the rear of an actuator arm, the two lead wires from either end of the coil are led out from the end of the coil, and plastic tubes are slid over the wires up to a point closely adjacent the wound coil. The wound coil is then molded, fixing its shape and holding it in place on the rear of the actuator arm.
REFERENCES:
patent: 4352897 (1982-10-01), Ogata et al.
patent: 5041924 (1991-08-01), Blackborow et al.
patent: 5113297 (1992-05-01), Yoshida
patent: 5122703 (1992-06-01), Takahashi et al.
patent: 5262912 (1993-11-01), Hudson et al.
Bonn Brian T.
Gauger Mark E.
Jabbari Iraj
Kim Chul Soo
Maiers Michael A.
Korzuch William R.
Levy Stuart S.
Seagate Technology Inc.
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