| 摘要 |
<p>PURPOSE:To call out a desired item on a tape in a short time and to increase the number of a handling item with the exchange of a cassette by providing a cassette containing a set of plural 1st rolls and a single 2nd roll and disposing plural cassettes in polygonal form. CONSTITUTION:A tape 12 storing many items is wound round the 1st roll 3 of each cassette 2, and tapes 12 are wound collectively round the 2nd roll 6. A driver 1 has a main body frame 16 consisting of hexagonal end plates 13 and 14 and rods 15. A revolving shaft 17 is supported at the center of the frame 16, and a shaft 7 functions as a revolving means for the rolls 3 and 6. Then 6 units of cassettes 2 are set up in a hexagonal column within the frame 16, and the shaft 17 is attached to the frame 16 in a freely loadable and unloadable. The number of revolution of the shaft 17 is controlled by a step motor 27 to call out selectively a desired item on an optional tape 12 to a desired position, e.g., a viewfield position VF.</p> |
