Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1985-08-14
1987-05-26
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360105, 360109, G11B 558, G11B 2120
Patent
active
046690107
ABSTRACT:
A floppy disk drive for electro-magnetically writing an information or data onto a floppy disk and reading the stored information or data from the floppy disk as external recording elements in computers. The device have a pair of read/write heads being carried reciprocally along a radial direction of a loaded floppy disk by a carriage which is driven by a stepping motor. Both two heads can properly by maintained in intimate contact with both the magnetic recording sides of the loaded floppy disk to provide a reading/writing operation. The lower head is supported on the carriage by a flexible leaf support spring mounted on the carriage. The leaf support spring consists of a stationary portion rigidly mounted on the carriage and a movable portion cantilevered from the stationary spring portion to support the lower head. On the portion of the carriage below the movable spring portion provided a spring seat portion to limit a downward displacement of the movable spring portion. The moving spring portion can be pressed against the spring seat portion under biasing force of the opposite upper head in a head-loading state.
REFERENCES:
patent: 4309732 (1982-01-01), Kronfeld et al.
patent: 4328521 (1982-05-01), Pexton et al.
patent: 4355339 (1982-10-01), King et al.
patent: 4379315 (1983-04-01), Schuler
patent: 4379316 (1983-04-01), Krane
patent: 4433352 (1984-02-01), De Marco et al.
patent: 4480281 (1984-10-01), Cantwell
Citizen Watch Co. Ltd.
Wolff John H.
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