Multiple speed drive mechanism for cassette recorders

Details Multiple speed drive mechanism for cassette recorders Multiple speed drive mechanism for cassette recorders

1978-08-23

1979-10-02

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

242201, 360 73, G11B 1528, G11B 1544, G11B 1926

Patent

active

041700295

ABSTRACT:
A drive mechanism for cassette type magnetic tape recorders is provided in which fixed, low-speed and high-speed modes are provided for record and/or playback operations. A motor pulley is continuously engaged with two idler wheels, each of which is mounted to be selectively moved into engagement with a different perimeter portion of a flywheel, the shaft of which forms a tape driving capstan. The different perimeter portions have differing diameters, such that when one or the other of the idler wheels is engaged, the flywheel and capstan are driven at a preselected low speed or high speed.

REFERENCES:
patent: 3542312 (1970-11-01), Erickson
patent: 3823945 (1974-07-01), Milligan
patent: 3825209 (1974-07-01), Mikkelsen
patent: 3869723 (1975-03-01), Yoshida
patent: 3934270 (1976-01-01), Iwata
patent: 4011586 (1977-03-01), Pastor et al.
patent: 4012784 (1977-03-01), Murphy et al.
patent: 4031554 (1977-06-01), Umeda et al.
patent: 4052742 (1977-10-01), Pastor et al.

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