| 摘要 |
<p>PURPOSE:To simplify its constitution and to reduce its size and weight by providing a back holder plate which is supported rotatably at a fulcrum of rotation and has a cam-shaped part for energizing a sub-holder inwardly. CONSTITUTION:Back holder plates 153A and 153B energize the sub holder 140 in a cassette ejecting direction by the cam-shaped part with the force of a spring and also locks it. Those plates 153A and 153B has a cam-shaped part which unlock the holder 140 and members 155A and 155B formed integrally with the holder after the members 155A and 155B move optionally inward and a cassette holding force is maintained to eliminate the generation of ejection force by the spring when the holder 140 is inserted into the cassette insertion direction. Further, projections are formed on both flanks of the cassette corresponding to changer grip parts and the bevel of a U-shaped recessed part is used to press and hold the cassette and holder 140 in the cassette inserting direction.</p> |
