Head drum assembly for use in a video cassette recorder

Details Head drum assembly for use in a video cassette recorder Head drum assembly for use in a video cassette recorder

1996-04-25

1997-11-11

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360108, G11B 552, G11B 2104, G11B 2118

Patent

active

056870434

ABSTRACT:
A head drum assembly for use in a video cassette recorder includes a stationary shaft, a rotary drum, a stationary drum, a ring collar, a rotor transformer, a stator transformer, and a conical washer spring. The rotor transformer and the stator transformer are attached to the rotary drum, and to a bottom surface of a stator transformer attachment plate fitted around the ring collar. The conical washer spring is fitted around the stationary shaft and interposed between the rotary drum and the ring collar. A correct separation between the rotor transformer and the stator transformer is obtained by adjusting a vertical position of the ring collar until the stator and rotor transformers have a predetermined separation, then immobilizing the ring collar by tightening a locking screw provided therein. This allows a simpler manufacturing process and lowers the defects rate, ultimately resulting in a lower unit cost.

REFERENCES:
patent: 4117519 (1978-09-01), Shioyama et al.
patent: 4400751 (1983-08-01), Tominaga
patent: 4964006 (1990-10-01), Ota
patent: 5113298 (1992-05-01), Fukushima et al.
patent: 5388018 (1995-02-01), Falk

Affiliated with

Also associated with

Rating

Head drum assembly for use in a video cassette recorder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Head drum assembly for use in a video cassette recorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head drum assembly for use in a video cassette recorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1233457