Tension control mechanism for a recording/reproducing device

Details Tension control mechanism for a recording/reproducing device Tension control mechanism for a recording/reproducing device

1976-05-21

1978-03-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

242189, 242 753, G11B 1518

Patent

active

040806359

ABSTRACT:
In a recording and reproduction device for a tape-like carrier having at least one scanning device and two spools for the carrier, first and second tape-tension adjusting levers, and first and second guidance devices disposed on the levers, respectively, for guiding and maintaining the carrier thereon, spring devices exerting a force against the levers, and where the levers may be displaced from a rest position to one of a plurality of operating positions against the force of the spring devices, the improvement includes a regulating mechanism for the spring device where the force of the latter has first, second and third regions, which may be controlled by the regulating mechanism. The force for the spring device may be adjusted by the regulating mechanism in the first region to a value sufficient to maintain the carrier on the guidance devices, is adjustable in the second region to a second value required for selective recording and reproduction of the carrier, and may be adjusted in the third region to a value at least equal to a value required for fast rewinding of the carrier, but below a predetermined maximum allowable value that if obtained, would result in a permanent deformation of the tape-like carrier.

REFERENCES:
patent: 3022960 (1962-02-01), Foster
patent: 3091410 (1963-05-01), Widener
patent: 3405857 (1968-10-01), Albrecht
patent: 3517895 (1970-06-01), Kraft
patent: 3539129 (1970-11-01), Schmidt et al.
patent: 3911492 (1975-10-01), Uri
patent: 3969766 (1976-07-01), Tanaka et al.

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