| 摘要 |
<p>PURPOSE:To load and unload a cassette case smoothly by preventing a cassette case in a holder from coming into contact with a checker when the cassette holder is elevated or lowered. CONSTITUTION:When a cassette case 2 is lowered, the fixed pin 5 of a cassette holder 1 comes into contact with the slanting part 15 of a slide plate 6 and when the case is further pressed down, the slide plate 6 slides as shown by an arrow B to rotate a checker 13 as shown by an arrow C. When the case is furthermore pressed down, the case 2 is accommodated in a head contacting position without touching the checker 13, and the fixed pin of the holder 1 comes into contact with a locking pawl part 16 to restrict the upward movement of the holder 1 by tension spring 9 and 22 while whether the tape is recorded or not is detected by a contactor 19. When the tape is unrecorded, the contactor 19 remains abutting to the flank of the case 2 and a bent part 21 is unable to turn on a microswitch 20, thus detecting the unrecorded state.</p> |
