| 摘要 |
<p>A magnetic tape cassette (1) is provided with a pivotal dosure lid (8) pivotably secured to both sides of a casing for movement between a closed position, in which the front opening of the casing, through which a magnetic tape is accessible for loading onto a rotary head, is covered, and an open position wherein the closure lid (8) is pivoted away from said opening to expose the tape while the cassette (1) is in use. The magnetic tape cassette (1) is also provided with a sliding closure member (9) slidably mounted on the bottom of the casing and cooperative with the aforementioned pivotal closure lid (8). The sliding closure member (9) is in a dosed position while the pivotal closure lid (8) is in its closed position, in which it covers a bottom clearance (3a) through which a device constituting part of a tape holding system is inserted, and in an open position while the pivotal closure lid (8) is in its open position to allow the aforementioned device- - of the tape handling system to reach into the casing through the bottom clearance. A locking level (15) holds the sliding closure (9) in the current one of its two positions The shding closure (9) holds the pivotal closure closed while in its own dosed position. (Fig. 3)</p> |
