Tape cassette with reel lock mechanism

Details Tape cassette with reel lock mechanism Tape cassette with reel lock mechanism

1994-03-15

1995-07-18

Nguyen, John Q.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

2423383, 360132, G11B 23087

Patent

active

054333989

ABSTRACT:
A tape cassette having a cassette case; a pair of tape reels rotatably mounted in the cassette case, on which tape reels a magnetic tape is wound, each of the tape reels having a flange formed with an outer circumferential toothed portion; a slide housing slidably mounted in the cassette case and having a hollow portion into which a reel unlocking member provided in a recording and/or reproducing apparatus is inserted when the tape cassette is loaded into the apparatus; and a pair of lock members adapted to releasably engage with the toothed portions of the tape reels, respectively, to lock the tape reels, the lock members being independently rotatably mounted on the slide housing; whereby when the reel unlocking member is inserted into the hollow portion of the slide housing, the slide housing is slid toward an unlocked position to rotate the lock members and thereby disengage the lock members from the toothed portions of the tape reels, thus unlocking the tape reels; a projection is formed on each lock member to engage a respective rib on the slide member to limit the rotation of the lock members.

REFERENCES:
patent: 4288048 (1981-09-01), Sieben
patent: 4635878 (1987-01-01), Didriksen
patent: 5224005 (1993-06-01), Fujii

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