| 摘要 |
<p>PURPOSE:To securely open and close the lid of a cassette by allowing a guide pin for opening and closing to move along a guide hole for opening and closing as a cassette holder moves, and rotating an opening/closing lever forcibly and opening and closing the lid of the cassette. CONSTITUTION:When the cassette 1 is inserted with a stronger force that than in its insertion, the cassette 1 and cassette holder 2 are united and move to the inner side of a frame 4. At this time, a 3rd guide pin 8c moves along a 3rd guide hole 6c and a link lever 23 also moves to the inner side of the frame 4 associatively with the pin 8c. When the lever 23 moves, the lever 23 rotates around the pin 8c as a support shaft by being energized by a spring 27 by variation in relative position between the hole 6c and the guide 7 for opening and closing. Further, the claw part 22 of an opening lever 19 rotates until it abuts on the holder 2 and the lid 1a is opened by a specific quantity. Then, the cassette 1 and holder 2 move down in one body and the cassette 1 is loaded at a specific position. The movement from the loading position to an insertion position is performed reversely as mentioned above.</p> |
