Reel lock mechanism for tape cassette

Details Reel lock mechanism for tape cassette Reel lock mechanism for tape cassette

1991-04-03

1992-09-08

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 23087

Patent

active

051463806

ABSTRACT:
A reel lock mechanism for a tape cassette, including a lock portion having a pair of pawls adapted to engage a plurality of teeth formed at outer circumferences of a pair of tape reels for winding a tape, a slide portion slidably supported to a cassette case of the tape cassette, and a twistable connecting portion integrally connecting the lock portion with the slide portion. When one of the tape reels is moved in a slacking direction of the tape by vibration or the like applied to the tape cassette, the connecting portion is twisted by a moving force applied to one of the pawls to thereby rotate the lock portion. As a result, the other pawl is moved so as to rotate the other tape reel in a direction increasing a tension of the tape. Therefore, a locked condition of the other tape reel is prevented from being released, and the tape is always maintained under a proper tension, thus improving a reliability of reel locking.

REFERENCES:
patent: 4553717 (1985-11-01), Takagi
patent: 4679110 (1987-07-01), Schoettle et al.
patent: 4712149 (1987-12-01), Goto et al.

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