Rotary head assembly for videotape recorder or reproducer

Details Rotary head assembly for videotape recorder or reproducer Rotary head assembly for videotape recorder or reproducer

1980-07-14

1982-12-28

Kilgore, Robert M.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360108, 36013024, G11B 510, G11B 1560, G11B 2118

Patent

active

043665195

ABSTRACT:
In a rotary head assembly for magnetic recording and reproducing apparatus such as VTR sets, of the type comprising a stationary shaft having its one end securely joined to a stationary member, a rotor fitted over the stationary shaft for rotation, a drive means for driving or spinning the rotor and heads mounted on the rotor, the position N of a thrust support for supporting the rotor is so selected as to coincide with the center of gravity G of the rotor or as to be located between the center of gravity G and the center of gravity G.sub.1 of the rotor except an aggregate of component parts of said drive means mounted on the rotor, the center of gravity G being depending upon the center of gravity G.sub.1 and the center of gravity G.sub.2 of the aggregate of component parts mounted on the rotor, whereby the adverse effects of the precession of the rotor on the precision rotation or spinning thereof can be avoided.

REFERENCES:
patent: 3981024 (1976-09-01), Mo
patent: 4031558 (1977-06-01), Kusaka
patent: 4043612 (1977-08-01), Orcutt
patent: 4301487 (1981-11-01), Maruyama

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