Tape cassette with slidably guided, spring-biased reel locking m

Details Tape cassette with slidably guided, spring-biased reel locking m Tape cassette with slidably guided, spring-biased reel locking m

1994-12-29

1996-04-09

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record medium

In container

2423383, 242343, G11B 23087

Patent

active

055067395

ABSTRACT:
A tape cassette having a reel lock mechanism which includes a slider adapted to slide in frontward and rearward directions within a cassette housing; a pair of lock pawls adapted to engage with outer circumferential toothed portions of a pair of reels to lock rotation of the reels in tape slacking directions, the lock pawls being rotatably mounted on the slider; a first spring for biasing the lock pawls to rotate the same in such a direction as to engage the lock pawls with the toothed portions of the reels; a second spring for biasing the slider to slide the same in the frontward direction and drive the reels through the lock pawls in tape winding directions; and a pair of guides for rotating the lock pawls in such a direction as to disengage the lock pawls from the toothed portions against a biasing force of the first spring when the slider is slid in the rearward direction. Accordingly, when the reels are locked by the lock pawls, the reels are rotationally driven in the tape winding directions to thereby securely prevent slacking of the tape.

REFERENCES:
patent: 4288048 (1981-09-01), Sieben
patent: 4579295 (1986-04-01), Harada
patent: 4918558 (1990-04-01), Igarashi et al.
patent: 5004180 (1991-04-01), Okamura et al.

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