Tape cassette case having ridges bearing a sliding reel lock mem

Details Tape cassette case having ridges bearing a sliding reel lock mem Tape cassette case having ridges bearing a sliding reel lock mem

1991-04-05

1994-09-20

Stodola, Daniel P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

242343, G11B 23087

Patent

active

053482441

ABSTRACT:
A tape cassette has a plurality of spaced apart, elongated bearing surface portions elevated relative to an internal surface of a cassette case and on which a reel lock member is adapted to slide. Accordingly, the sliding movement of the reel lock member is prevented from being hindered by a burr generated at the periphery of a hole formed through the internal surface or by a burr-like projection generated at the periphery of an indentation formed by contact of an ejector pin with the internal surface upon molding of the cassette case. As a result, the locking and unlocking operations of the reel lock member with respect to a tape reel can be reliably effected.

REFERENCES:
patent: 4553717 (1985-11-01), Takagi
patent: 4650136 (1987-03-01), Tsuruta
patent: 4703384 (1987-10-01), Kawada et al.
patent: 4742415 (1991-04-01), Oishi
patent: 4743992 (1988-05-01), Komiyama et al.
patent: 5041938 (1991-08-01), Mizuno et al.

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