Tape reel

Details Tape reel Tape reel

1987-01-07

1988-07-19

Werner, David

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

G11B 1532, G11B 2304

Patent

active

047579587

ABSTRACT:
A tape cassette is described having top and bottom cassette halves, tape reels and low friction washers between the tape reels and the cassette halves. Each tape reel is made of a plastic hub connected to two plastic flanges, each flange having intentionally curved circumferential edges. Each flange also has a raised, annular centering ring abutting and rotating only on the washers for rotatably supporting the tape reels relative to the tape cassette. These centering rings minimize friction, prevent skewing of the tape reels relative to each other and, along with the curved edges of the flanges, permit the tape to be wound without damage.

REFERENCES:
patent: 3356202 (1967-12-01), Goff, Jr.
patent: 4184650 (1980-01-01), Nelson et al.
patent: 4191984 (1980-03-01), Tsukidate et al.
patent: 4234140 (1980-11-01), Van Nie et al.
patent: 4248393 (1981-02-01), Mogi
patent: 4403749 (1983-09-01), Nakagawa
patent: 4452408 (1984-06-01), Sasaki
patent: 4559574 (1985-12-01), Umeda
patent: 4560117 (1985-12-01), Shimizu

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