| 摘要 |
<p>PURPOSE:To execute a sure cassette insertion detection with a simple constitution by executing a movement in the cassette inserting direction of a cassette holder, detecting the movement to a normal position with a cassette insertion by means of a single detector, and controlling a driving motor by means of a swayable detecting lever. CONSTITUTION:A cassette 1, which is energized in a direction to push out the cassette 1, in which a guide groove 34 into which a pin 33 is fitted is provided, which is movable in the inserting direction of the cassette 1 to a cassette holder 2, simultaneously, in which a swayable lever 31 is provided, and which is inserted in being inclined to the holder 2, is straightened into a correct position by the lever 31. When the lever 31 is moved to a necessary position along with the cassette 1, it is detected by a photosensor 37 of a single detector, and the switch for starting up the motor to drive the holder 2 is turned on. By the simple constitution with only one detector, the cassette can be surely inserted, and the cassette can be mounted.</p> |
