Method of manufacturing a rotary head drum

Details Method of manufacturing a rotary head drum Method of manufacturing a rotary head drum

1996-12-30

1998-02-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360107, G11B 542

Patent

active

057131210

ABSTRACT:
Disclosed is a rotary head drum having a simplified structure, and a method for manufacturing thereof. An upper drum having at least two video heads formed at an outer bottom portion thereof is installed. A shaft is installed in the center portion of the upper drum. A deck portion on which said upper drum is installed, is vertically and upwardly bent by press working into cylinder shape having a shorter diameter than the upper drum. Then, a lower drum is formed on the outer portion of the deck by outsert molding under the upper drum at a predetermined distance apart from the upper drum. A number of complicated processes and assembling process for fixing the lower drum on the deck can be omitted. Thus, the obtained head drum has a simplified structure with less elements and has good quality.

REFERENCES:
patent: 4972283 (1990-11-01), Kim

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