Method for making a magnetic head drum for a magnetic recording apparatus
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United States of America Patent
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Jun 9, 1998
Grant Date -
N/A
app pub date -
Sep 3, 1996
filing date -
Sep 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic head drum for a magnetic recording apparatus comprising a metallic ring of a predetermined thickness, and a support body of a plastic material formed in said metallic ring through an outsert forming process. The support body of the plastic material includes a peripheral ring-shaped portion, a central boss portion for receiving a rotating shaft and a web portion connecting the ring-shaped portion with the boss portion. A plurality of magnetic heads are provided on a periphery of the drum to rotate as a unit with the metallic ring. There is also disclosed a method for manufacturing the magnetic head drum through an injection molding process of a plastic material using a metallic ring of a predetermined thickness.
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