Tape cassette with front lid held unlocked by lid lock pin caught in lid recess

摘要

Disclosed is a tape cassette including a cassette shell in which two tape reels are rotatably contained; a front lid, turnably supported by the cassette shell, for opening/closing the front side of a tape-like recording medium crossing a front portion of a mouth portion provided in a front portion of the cassette shell in such a manner as to be opened forwardly, upwardly, and downwardly; and a lid lock member for locking the front lid in the closed state to the cassette shell, wherein the locking of the front lid by the lid lock member is released when the tape cassette is mounted in a tape drive apparatus; the lid lock member is biased in the locking direction by biasing means; and the lid lock member is engaged with and held by a tape cassette side member in the unlocking state. With this configuration, the mounting state of the tape cassette in a tape drive apparatus can be stabilized and also the size and weight of the tape drive apparatus can be reduced.