| 摘要 |
<p>PURPOSE:To prevent the dropping of a cassette due to an inadvertent operation by providing a cassette locking means to a housing part where the cassette is loaded. CONSTITUTION:A cassette 13 is inserted toward D and a projected part 26 is set at a shunting position to a fulcrum 28 against the spring energization of a level 29. Then the part 26 is kicked counterclockwise by the cassette 13, and the cassette 13 is loaded. When the cassette is inserted further, the cassette front face has a contact with a stopper part 18. Then a level 25 slides in the cassette loading direction against the force of a spring 22. When the cassette 13 is inserted up to a prescribed position, a slit part 34 of the level 25 has a contact with a pin 24. Thus the sliding action of the lever 25 is stopped. In this case, a projected part 26 of a lever 29 moves into a recess part 14 of the cassette 13. Then the cassette 13 is locked into a housing. When the cassette 13 is unloaded, a knob part 27 is operated counterclockwise as if both the part 27 and a side face 35 opposite to the housing were held by a single hand. Thus a lock state is released between the part 26 of the lever 29 and the part 14 of the cassette 13. Then the cassette 13 is unloaded by means of a spring 22.</p> |
