Tape cassette casing having an attaching cylindrical portion wit

Details Tape cassette casing having an attaching cylindrical portion wit Tape cassette casing having an attaching cylindrical portion wit

1993-06-04

1995-01-10

Stodola, Daniel P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

G11B 1532

Patent

active

053799607

ABSTRACT:
A tape cassette includes a case comprising synthetic resin upper and lower cases which are integrally combined and rotatably provided with a couple of tape reels wound with a tape-like medium and a reel spring for restricting a vertical motion of the couple of tape reels. An attaching portion for retaining the reel spring is protruded on an inner face of the upper casing. The attaching portion or said lower case is provided with a rib or ribs for fixing the reel spring whereby weldings of the rib or ribs and the reel spring and of the upper and lower cases are simultaneously performed.

REFERENCES:
patent: 4428547 (1984-01-01), Gotoh
patent: 4646191 (1987-02-01), Goto
patent: 4669021 (1987-05-01), Wakui et al.
patent: 4687157 (1987-08-01), Schoettle et al.
patent: 4712149 (1981-12-01), Goto et al.
patent: 4899243 (1990-02-01), Berdignon
patent: 4986491 (1991-01-01), Gelardi et al.
patent: 5042740 (1991-08-01), Schoettle et al.
patent: 5142761 (1992-09-01), Gelardi et al.

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