Shuttering mechanism for a cassette

Details Shuttering mechanism for a cassette Shuttering mechanism for a cassette

G - Physics

11

B

352/31.1

G11B 23/03 (2006.01) G11B 23/033 (2006.01) G11B 17/04 (2006.01)

Patent

CA 1244128

ABSTRACT OF THE DISCLOSURE A window shuttering mechanism for a cassette has (a) a shutter for covering and exposing a window through which a recording medium of the cassette is accessed; (b) a lock for holding the shutter in its closed position in which the window is covered; (c) apparatus for releasing the shutter held by the lock from its closed position when the cassette is inserted into a cassette recording/playback apparatus; and (d) sequential actuator for generating and storing a biasing force as the cassette is inserted into the cassette recording/playback apparatus and engaging the shutter immediately before the apparatus releases the shutter from its closed position through exertion of the stored biasing force to move the shutter to expose the window according to the insertion movement of the cassette and to return the shutter to closed condition upon removal movement of the cassette.

487271

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