Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Patent
1998-03-23
2000-06-27
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Tape record
360105, 360106, G11B 5008, G11B 554, G11B 555
Patent
active
060814047
ABSTRACT:
When an auto-reverse is designated in the state of the magnetic tape of a cassette being transferred in a first direction with a planetary gear meshing with a first reel gear, a motor reverses, and also a central gear reverses such that the planetary gear starts revolving around the central gear away from the first reel gear. The planetary gear meshes with a mode changing gear, and rotate the mode changing gear, a projection and a switching member. In accordance with the rotation of the switching member, a head base moves horizontally and a magnetic head separates from the magnetic tape. Further, a bent piece on the head base abuts against a stopper, due to which the revolution of the planetary gear stops, and the planetary gear stays to assuredly transmit the revolution of the central gear to the mode changing gear. Moreover, the projection while in rotation presses a slider. As the slider slides, the magnetic head turns 180.degree.. When the mode changing gear further rotates, the head base horizontally moves again in accordance with the rotation of the switching member, and the magnetic head comes into contact with the magnetic head. The bent piece also moves horizontally, as a result of which the bent piece and the stopper disengage from each other, and the planetary gear becomes revolvable and starts revolving around the central gear toward a second reel gear. The planetary gear meshes with the second reel gear, and drives the second reel gear to transfer the magnetic tape in the reverse direction. Thus, using the driving force generated by the motor, the reversal of the transfer direction of the magnetic tape, the rotation of the magnetic head and the movement of the head base are performed.
REFERENCES:
patent: 4757405 (1988-07-01), Laudus
patent: 4922357 (1990-05-01), Komatsu
Asahi Corporation
Chan H. C.
Heinz A. J.
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