Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Tape record
Patent
1988-02-04
1990-02-06
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Tape record
360 95, 360 965, G11B 1566
Patent
active
048992356
ABSTRACT:
A tape loading mechanism for a video cassette recording apparatus in which a magnetic tape held in the cassette is withdrawn therefrom by a tape loading arm and is wound around a rotary cylinder. During this time, the cassette is fixed on the upper surface of a chassis having a cam bore, which is driven by a rotary arm in which a pin inserted in the cam bore is set up. This cam bore is provided with a first cam surface having a radius of curvature equal to that of a locus of a turning movement of the pin, a second cam surface formed continuously from the first cam surface and having a radius of curvature different from that of a locus of a turning movement of the pin, and a third cam surface formed continuously from the second cam surface and having a radius of curvature equal to that of a locus of a turning movement of the pin. Accordingly, the movement of the cassette is started at a predetermined period of time after the movement of the tape loading arm has been started, and it is completed before the movement of the tape loading arm has been completed.
REFERENCES:
patent: 4697215 (1987-09-01), Hata
patent: 4777546 (1988-10-01), Nagasawa et al.
patent: 4796115 (1989-01-01), Ohshima et al.
patent: 4802034 (1989-01-01), Matsumoto et al.
Fujimori Shinya
Fukagawa Yoshihiro
Kaku Nobuyuki
Kano Kiyoshi
Osawa Atsuo
Hitachi , Ltd.
Hitachi Video Engineering Inc.
Wolff John H.
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