| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily remove a cassette controller from a mechanical deck so as to improve assemblability by providing a rack mechanism for removing the mechanical deck from a chassis substrate in the cassette controller having a cassette holder. SOLUTION: This device is constructed in such a manner that large and small tape cassettes 4A and 4B are selectively fixed to two reel bases. A rack mechanism 47 in which a pair of parallel rack members 48 and 49 are moved mutually to each other by a pinion 53 is provided with an engaging recessed part 51 in one end part of one member 48 and an engaging recessed part 52 projecting to the member 48 in one end part of the other member 49. A cassette controller is provided with a driving lever 56, the lever 56 is engaged with the engaging recessed part 51 of one member 48 during a downward movement, its rack member is slid and moved and the reel base is driven to a position corresponding to the small cassette. During the upward movement of the lever 56, the lever is engaged with the recessed part 52 of the other member 59, its rack member is slid and moved and the reel base is driven to a position corresponding to the large cassette.</p> |
