Tape cassette casing having biasing element for improved traveli

Details Tape cassette casing having biasing element for improved traveli Tape cassette casing having biasing element for improved traveli

1992-02-18

1993-10-05

Stodola, Daniel P.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360132, G11B 23087

Patent

active

052497593

ABSTRACT:
A tape cassette capable of ensuring smooth and positive traveling of a magnetic tape in a casing. Sheet elements each are formed with a pair of apertures aligned with hub holes and a strip-like projection projecting toward the inner surface of a casing, which is formed on each of the upper and lower inner surfaces thereof with a land of a width larger than the diameter of the hub hole in a manner to face the projection of the sheet element. The casing is also formed on each of the upper and lower inner surfaces thereof with a pair of recesses in a manner to interpose the land therebetween and the sheet elements each have a pair of end edges extending in the longitudinal direction thereof, which are arranged so as to overhang the recesses of the casing.

REFERENCES:
patent: 3912194 (1975-10-01), Chan
patent: 4191984 (1980-03-01), Tsukidate et al.
patent: 4328936 (1982-05-01), Bordignon
patent: 4563718 (1986-01-01), Shirako
patent: 4681280 (1987-07-01), Duurland et al.
patent: 4881146 (1989-11-01), Bordignon

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