Reel spring for magnetic tape cassettes

Details Reel spring for magnetic tape cassettes Reel spring for magnetic tape cassettes

1990-01-02

1991-04-09

Stodola, Daniel P.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360132, G11B 1532

Patent

active

050057804

ABSTRACT:
A reel spring for a magnetic tape cassette is formed from an elongated strip of stainless steel. The strip defines first and second edges extending throughout its length parallel to a longitudinal centerline. The strip has a flat, central base portion terminating at a first pair of transverse crimp lines. The crimp lines define transition sections which extend out of the plane of the base portion at a first angle. A second pair of transverse crimp lines at the ends of the transition sections define end portions of the strip. The end portions extend at a second angle to the plane of the base portion. The width of the strip between the first and second edges is about 0.315 inches.

REFERENCES:
patent: 4613095 (1986-09-01), Shoettle et al.
patent: 4662579 (1987-05-01), Gelardi et al.
patent: 4770367 (1988-09-01), Carroll
patent: 4781340 (1988-11-01), Shiba et al.

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