Head base drive mechanism in tape player

Details Head base drive mechanism in tape player Head base drive mechanism in tape player

1981-09-15

1984-09-04

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, G11B 554

Patent

active

044700873

ABSTRACT:
The head base drive mechanism for cassette tape players. The head base which is normally urged toward the stop position is advanced to the play-back position using the rotation of the capstan. A pinion integrally provided on the flywheel of the capstan is engaged or disengaged with a sector gear. The sector gear is blocked from rotation after it goes out of said engagement and before it comes into engagement with the pinion. Since the sector gear is urged in a predetermined direction by way of a cam attached thereto, the release of said blocking causes the sector gear to rotate very quickly while the pinion is in facing relation to the untoothed position of the sector gear. Meantime, the cam actuates the head base to advance it to the play-back position through gear transmission whereas it restores the head base to the stop position quickly with the force by which the sector gear is urged.

REFERENCES:
patent: 4219852 (1980-08-01), Magata et al.
patent: 4305103 (1981-12-01), Osanai
patent: 4358804 (1982-11-01), Uehara

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