| 摘要 |
PURPOSE:To make small the size and to improve the assembly performance, by simultaneously turning the two discs via the spindle chuck with one drive motor, driving the carriage with one drive unit, and moving the two head mechanisms at the same time. CONSTITUTION:The part in the frame 2 is sectioned into two spaces 41, 42 with the base plate 3. At each space, the door arms 51, 52 possible for up and down movement, spindle chucks 261, 262 possible for unified rotation with the arms, corret holders 281, 282 possible for up and down movement with disc retainer set 37, head mechanisms 431, 432 fitted to the carriage 42 provided by bridging the both spaces, and moving parts 581, 582 possible for moving the sets, are respectively located. The two discs 21 are turned at the same time via the spindle chuck 26 with one motor 70 and the two head sets 43 can be moved simultaneously by driving the carriage with one drive unit. |
