| 摘要 |
PURPOSE:To install and hold a cassette by one inserting operation, by guiding a cassette holder by a guide plate having a guide hole, which meets at a right angle with the inserting direction of the cassette and controls a disk to locate to the side where a spindle for rotate-driving a disk. CONSTITUTION:When a cassette 8 is inserted, a pin 10 and a sleeve 11 reach a vertical part of a guide groove 12a, the whole cassette holder 9 is forcibly dropped by a component of force in the vertical direction of a tension spring 13, the sleeve 11 is made to press with the bottom of the guide groove 12a to stop the drop of the cassette holder 9 and bring the cassette 8 to an installed state. The cassette 8 is pressed against the bottom part of the cassette holder 9 by a plate spring 19, and can be inserted and ejected freely into an from a pressure plate 17 projected to the inside of the cassette holder 9. In the installed state, the cassette 8 is pressed against the ceiling of the cassette holder, and a hub 1a is inserted between a spindle 16 and the pressure plate 17, and is press-held on the spindle by a compression spring. |
