Self-locking hub assembly for a compact audio tape cassette...

Details Self-locking hub assembly for a compact audio tape cassette... Self-locking hub assembly for a compact audio tape cassette...

G - Physics

11

B

26/182, 242/30.7

G11B 23/04 (2006.01)

Patent

CA 1304733

ABSTRACT An internal, self-locking hub assembly for a compact, audio, tape cassette is described including a locking member with two movable portions and a spring. The tape cassette includes receptacles formed in a raised annular ring thereof. The spring normally forces the two movable portions radially inward in a direction parallel to the plane of the hub, wherein the two movable portions engage the receptacles in the raised annular ring, and lock the hub against rotation. on the other hand, when the tape cassette is placed into a tape player/ recorder, the spindle thereof enters the center of the hub, abuts and moves the two movable portions radially outward against the force of the spring thereby unlocking the two movable portions from the receptacles and permitting normal rotation of the hub. A related method includes the steps of: forming the locking member to include two movable portions, a spring and a locating member; picking up the locking member; forming a hub to include a mounting member corresponding to the locating member; advancing the locking member to the hub; inserting the locking member into the hub such that the locating member is fixedly received by the mounting member; mounting the hub into a cassette base; forming a cassette cover to include the receptacles; and positioning the cassette cover on the base, such that the receptacles receive the two movable portions.

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