| 摘要 |
<p>Within a cassette (1) an aperture is formed on one of its walls through which a recording and/or reproducing operation is accessable, the housing has a positioning opening (5) in the bottom wall (1B) for receiving a positioning pin (8) therein in an operative position. An indication means for indicating specific condition of the cassette (1) comprises a connecting hole (50 - 54) formed in said housing in alignment with said positioning opening (5) and a plug element (6) which is slidably inserted in said connecting hole (50-54). Said plug element (6) may be locked at upward and downward positions, comprise a large radius portion (61) at one end engageable with the connecting hole (50 - 54) and a small radius portion (63) at another end and further a locking finger (64) projecting at least toward one direction, engaging said connecting hole (50 - 54) at shoulder portions (55, 56) for locking said plug element (6), which may have a slit through which the small radius portion (63) and the finger portion (64) pass the back side of said shoulder portions (55, 56). The finger portion (64) may be engageable with the shoulder portion (55,56) by rotating said plug element (6) by a predetermined angle. A spring (7) inside of said connecting hole (50 - 54) may urge said plug element (6) upwardly.
<??>Thus at least two differently sized types of cassettes may be freely interchanged, a cassette information access being possible in any case in a safe manner. </p> |
