Magnetic tape cassette drive system

Details Magnetic tape cassette drive system Magnetic tape cassette drive system

1978-12-29

1980-11-18

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360 963, G03B 104, G11B 1532

Patent

active

042341400

ABSTRACT:
A magnetic tape drive system for a video cassette recorder comprises a flip-over magnetic tape cassette having side-by-side reel hubs, each hub having a disc-shaped centering and drive member in the center of the hub with a central centering aperture and one or more drive apertures at some radial distance from the centering aperture, and a drive arrangement with drive spindles having a centering pin for the centering aperture in the reel hub, and at least one resiliently depressable drive pin which engages a drive aperture. To ensure correct positioning and drive of the spools and an excellent lace-up, and prevent undesired variations in the tensile stress in the magnetic tape and thus variations of the stretch of the magnetic tape, the reel hubs are resiliently urged onto stop surface which rotate with the drive spindles. The resilient urging devices and drive apertures are arranged to prevent disturbing forces on the reel hub.

REFERENCES:
patent: 3684295 (1972-08-01), Strain et al.
patent: 3739998 (1973-06-01), Esashi et al.
patent: 3869099 (1975-03-01), Inaga

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