G - Physics – 11 – B
Patent
G - Physics
11
B
352/31.1, 352/24
G11B 15/32 (2006.01) G11B 23/087 (2006.01)
Patent
CA 1207081
ABSTRACT OF THE INVENTION MAGNETIC TAPE CASSETTE A tape cassette for use in a magnetic recording/reproduc- ing apparatus comprises a housing having top and bottom (14) plates with a pair of tape reels (15,16) rotatably accomodated side-by-side in the housing between the said plates, a pair of spaced apertures in the bottom plate (14) permitting entry into the housing of a pair of reel-engaging shafts of the said appara- tus when the cassette is inserted into its position of use in the apparatus, and locking means automatically effective when the cassette is removed from the apparatus for substantially prevent- ing inadvertent rotation of the reels (15,16) when the cassette is not in its position of use, the locking means comprising a plura- lity of recesses (37) formed on the outside surface of one flange (30) of each tape reel (15,16) adjacent the peripheral edge there- of, and at least one locking lever (39) having a pair of brake members (40) extending mutually away from one another across the respective peripheral edges of the tape reel flanges each for engagement with any recess (37) of a respective tape reel, the lever(s) (39) being pivoted (41) with respect to the housing and being resiliently biased (42) for rotation in such a direction about the pivotal axis that the brake members (40) are brought to- wards the respective tape reel flanges (30) into locking engage- ment with respective recesses (37) of the reels (15,16) when the cassette is not in its position of use, and the cassette housing having an aperture for a release pin which, upon insertion of the cassette into its position of use in the apparatus, is operative to rotate the lever(s) (39) in opposition to the resilient bias (42) to disengage the brake members (40) from the tape reel (15,16).
427532
Eko Video Limited
Fetherstonhaugh & Co.
LandOfFree
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