Magnetic tape cassette

Details Magnetic tape cassette Magnetic tape cassette

1980-12-03

1982-11-09

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242199, G03B 104, G11B 1532

Patent

active

043580700

ABSTRACT:
A magnetic tape cassette comprises a tape running plane for a magnetic tape provided in the front of the casing assembly consisting of an upper half casing and a lower half casing, said magnetic tape being held in wound form and being capable of running inside the casing assembly and a front cover mounted to the casing assembly so as to open and close at the front of the assembly, said front cover being actuated by spring action in the direction closing the front part of the casing assembly by positioning one end of a coil spring fitted to the pivot pin in a rectangular groove formed in an inner surface of the upper half casing, wherein a rib having a slanted surface which is lowered toward said groove is provided at the side of said groove.

REFERENCES:
patent: 3980255 (1976-09-01), Serizawa
patent: 4083472 (1978-04-01), Wharam
patent: 4173319 (1979-11-01), Umeda
patent: 4180220 (1979-12-01), Shiba et al.
patent: 4235395 (1980-11-01), Wardenaar et al.

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