| 摘要 |
<p>PURPOSE:To preclude the possibility that a cassette holder is deformed to make its loading difficult or a mechanical damage is given to other mechanism by providing a regulating mechanism to a device frame. CONSTITUTION:In loading a cassette P to the front frame 5b of a cassette holder 5 in the non-play state, one reel hole of the cassette P is engaged with an engaging collar 8, the collar 8 is move backward, a repulsion spring 13 is reversed attended with the movement and the cassette P is automatically penetrated deeply to the cassette holder 5 together with the engaging collar 8 by the repulsive elastic force. If the external force W such as a grip force is acted on the upper face of the cassette holder 5 in the non-play state, the external force W is exerted downward onto a movable piece 17a via an abutting part between a tongue 16 and a reception part 19, thus the movable piece 17a is turned counterclockwise against a spring 17b to give buffering the action of the external force W, then the possibility of mechanical damage such as deformation onto the cassette holder 5 is precluded.</p> |
