| 摘要 |
PURPOSE:To enable taking out of the cassette after completely stopping the disc revolution and to prohibit careless taking out when the disc is in rotating state by constituting a double-locking mechanism which consists of the first locking part and the second locking part. CONSTITUTION:To take out the cassette when the disc is loaded, the first locking part is operated toward the releasing direction that is shown by an arrow A, then a stopper 13 is removed from the stoppage groove 14 of the second locking part 4, to release the second locking part 4. When releasing operation of the first locking part 10 is performed, a switch depresser 15 retreats and releases the pressing on a switch 16 by a switch 17 to let the switch become off. In consequence, a disc-driving motor is braked, and the disc revolution begins to stop. In order to unlock, the releasing operation of the first lock 10 is performed, then that of the second locking part 4 which is to move it to the direction shown by an arrow B is executed, a stopper claw 8 is released from the lock pin 9 of a case cover 2. In consequence, the cover 2 becomes in open state i.e. the releasing of lock is completed. |
