Tape cassette having one or more pressure springs, and a pressur

Details Tape cassette having one or more pressure springs, and a pressur Tape cassette having one or more pressure springs, and a pressur

1985-06-13

1986-12-16

Watkins, Donald

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360132, G03B 104, G11B 1532

Patent

active

046291440

ABSTRACT:
A tape cassette (20) has at least one pressure spring (1; 13; 14; 16) for exerting a spring force on at least one tape reel (11, 12) contained in a housing of the tape cassette. The housing includes a window (5) having a cutout (6) and a transparent component (7) received therein and the or each pressure spring is provided with at least one bent-over portion (2a, 2b) embracing an edge portion or edge portions of the windows (5) to captively fasten the spring(s) to the housing.
The invention also relates to a pressure spring for a tape cassette.

REFERENCES:
patent: 3801042 (1974-04-01), Dobson
patent: 3934839 (1976-01-01), Serizawa
patent: 4323937 (1982-04-01), Santora
patent: 4368860 (1983-01-01), Goto
patent: 4496118 (1985-01-01), Oishi et al.
patent: 4526330 (1985-07-01), Shimizu
patent: 4546938 (1985-10-01), Okamura et al.

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