Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1997-03-03
1998-06-09
Evans, Jefferson
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 554, G11B 2122
Patent
active
057644365
ABSTRACT:
A hard disk drive assembly having a pivoted arm that moves a read/write head over a hard disk from an inside diameter to an outside diameter, and an unadjustable, one-piece crash stop that limits the movement of the arm. A first version of the crash stop is an elongated member having a smooth bottom free of projections, and having first and second through holes. The hard disk drive assembly has a base having two threaded holes. The first and second through holes of the crash stop align with the two threaded holes when the crash stop is placed on the base. Screws are disposed in the first and second through holes and are threadably engaged with the two threaded holes in the base. The screws, when tightened, lock the crash stop in a precise location. In this version, one of the screws passes through a very closely-fitting precision round hole in the one-piece crash stop. That screw acts, in effect, like a locating pin. This version can be used without modifying the existing base of the hard disk drive assembly. In a second version of the invention, the fixed crash stop employs only a single mounting screw and two precision locating pins along with a modified base. One of the pins has a close fit in its locating hole. This locating pin ensures that the improved crash stop is correctly and accurately located.
REFERENCES:
patent: 5339209 (1994-08-01), Dion
patent: 5402290 (1995-03-01), Daniel
patent: 5404257 (1995-04-01), Alt
patent: 5452159 (1995-09-01), Stefansky
patent: 5455728 (1995-10-01), Edwards et al.
patent: 5663855 (1997-09-01), Kim et al.
Darling Mike James
Lim Choon Kiat
Ngo Long Van
Pasupathy Narayanaswamy
Evans Jefferson
Seagate Technology Inc.
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