| 摘要 |
A tape cassette for use in a recording and/or reproducing apparatus, wherein tape reels for winding a recording tape are rotatably accommodated in a box-shaped cassette casing which is formed by combining upper and lower cassette halves, the recording material is extended outward along the front wall of the cassette casing between tape outlets formed at both end portions of a front wall of the cassette casing, and a lid for opening and closing the front surface of the recording tape which extends along the front wall of the cassette casing is supported at the front portion of the cassette casing so as to be rotatable upward and downward. A lid locking mechanism includes: an engagement formed on the inner surface of the lid; a lid locking member having a projection and rotatably supported at its upper end between the halves, the lid locking member being resiliently biased in a manner that its lower end turns forwardly so that the projection engages with the engagement formed on the inner surface of the lid; and a stopper formed on one of the halves, the stopper abutting against or closing to the upper surface of the projection in a locked state where the projection engages with the engagement.
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