Pre-assembled voice coil magnetic assembly and rotatable attachment structure/method to base plate for disc drive
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United States of America Patent
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-
Aug 6, 2002
Issued Date -
N/A
app pub date -
Apr 2, 1999
filing date -
Jan 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A disc drive and method of making a disc drive, including a voice coil magnet assembly. The voice coil magnet assembly includes a top magnetic return plate, a bottom magnetic return plate and at least one pair of magnets affixed to at least one of the plates. The voice coil magnet assembly is pre-assembled prior to attachment to a base plate. The pre-assembled voice coil magnet assembly is then structurally coupled to the base plate at a boss or attachment point, and is done so in a rotatable manner at the boss or attachment point, such that the voice coil of an actuator assembly is sandwiched by the rotation of the pre-assembled unit about the structural attachment point or boss.
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