Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Tape record
Patent
1996-03-27
1997-04-08
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Tape record
360 95, 74422, 74437, G11B 15665
Patent
active
056193882
ABSTRACT:
A tape loading device includes: a plate, cam which moves in a straight line at a constant speed; a rack provided on the plate cam; an arm load gear provided with a gearwheel which engages with the rack and rotates as the plate cam executes linear motion; a lever mechanism which moves as the arm load gear rotates; a tape guide provided at the end of the lever mechanism which withdraws the tape from the cassette starting from the unloaded position and finishing in the loaded position; and a guide member provided with a guide hole which guides the tape guide from the unloaded position to the loaded position. The gearwheel on the arm load gear which engages with the rack includes a first tooth having a pitch circle of a first radius, and a second tooth having a pitch circle of a second radius which is larger than the first radius so as to prevent tape slack by slowing the tape loading process down just before the process ends. When the tape is loaded, the rack of the plate cam engages the first tooth of the arm load gear so as to move the tape guide from the unloaded position of the tape guide to a predetermined position before the loaded position of the tape guide the rack of the plate cam subsequently engages with the second tooth of the arm load gear so as to move the tape guide to its loaded position with a velocity less than the velocity produced by the first tooth so as to prevent tape slack.
REFERENCES:
patent: 466923 (1892-01-01), Price
patent: 3064491 (1962-11-01), Bishop
patent: 4036073 (1977-07-01), Kitano
patent: 4686591 (1987-08-01), Kobayashi et al.
patent: 4807065 (1989-02-01), Kwon
patent: 4912578 (1990-03-01), Katohno et al.
Ditmyer Paul J.
Levy Stuart S.
Mitsubishi Denki & Kabushiki Kaisha
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