| 摘要 |
<p>PURPOSE: To improve the assemblability of a cassette holder to a chassis and to enable miniaturization. CONSTITUTION: The cassette holder 2 into which a cassette 1 is inserted is vertically movably supported between an ascending position and a descending position as against a movably substrate 16 by linking levers 5 and 6 together, and a cam groove 11 of the lever 5 is freely slidably engaged with a shaft 10 of the movably substrate 16. The tip of the cam groove 11 is provided with a wide part 11a having a flat surface which is the same as a flat surface of the cam groove 11, and the tip of the lever 5 is formed with a bend 11b to provided a wide part 11a' having a flat surface which is not the same as the flat surface of the cam groove 11. A large diameter part and a small diameter part of the shaft 10 are engaged with the wide part 11a' and the wide part 11a respectively, and the small diameter part of the shaft 10 is freely slidably engaged with the cam groove 11. At the time of fitting the cassette holder 2 to the movable substrate 16, the lever 5 can be assembled to the movable substrate 16 in the lateral direction without bending the lever 5 to the inner side. Under the descending state of the cassette holder 2, a projecting amt. of the tip of the lever 5 can be small, thus making miniaturization feasible.</p> |
