Magnetic-tape cassette with stretched liner arrangement

Winding – tensioning – or guiding – Strand tensioning device – Tortuous course

Patent

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Details

242683, 242200, G11B 23087

Patent

active

046812806

ABSTRACT:
Within the housing of a magnetic tape cassette, two liner foils bear against turns of magnetic tape on each of two reel hubs. Each reel hub has an inner ring and an outer ring, the inner ring being longer axially than the outer ring, and arranged so that each liner foil bears elastically against the respective axial ends of the inner and outer rings of each reel hub adjacent that foil. Each cassette main wall has two drive openings aligned with the respective reel hubs. Each opening has a centering rim for the reel hub, and a concentric flat supporting rim having an inner diameter larger than the outer diameter of the reel hub, for supporting the liner foil adjacent that cassette main wall. The distance between opposed supporting rings is greater than the sum of the width of the magnetic tape and the thicknesses of the two foils.

REFERENCES:
patent: 3666193 (1972-05-01), Wellington et al.
patent: 3756521 (1973-09-01), Werner
patent: 3797036 (1974-03-01), Eibensteiner
patent: 3857531 (1974-12-01), Jantzen
patent: 3923272 (1975-12-01), Pertzsch et al.
patent: 3934839 (1976-01-01), Serizawa
patent: 4126283 (1978-11-01), Kawachi
patent: 4191984 (1980-03-01), Tsukidate et al.
patent: 4436256 (1984-03-01), Saitou
patent: 4469293 (1984-09-01), Miyazi et al.
patent: 4607306 (1986-08-01), Shirako

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