| 摘要 |
<p>PURPOSE:To obtain a loading-unloading device that provides well balanced loading and unloading forces by providing an inverting spring and subordinate driving lever spring and by ejecting a cassette by the energy of the above-mentioned springs in ejection of the cassette. CONSTITUTION:In addition to rack 33 interlocking with cassette holder 2, main driving lever 50, subordinate driving lever 49 and inverting spring 32 are provided. Further, upwards and downwards moving lever 18, ejection lever 58, etc., are provided. In this constitution, inserting holder 2 into guide plates 4 and 7 moves rack 33 forth and main driving lever 50 and then subordinate driving lever 49 are interlocked against the activating force of spring 54, so that inverting spring 32 reaches the dead point position via gear 30. As holder 2 reaches the final position, holder 2 drops via lever 18 and the play mode is set. With ejection lever 58 pushed, lever 49 is unlocked to return rack 33 to the start position of lever 49 by the energy of spring 54 and then spring 32 is inverted to return rack 33 to the original position. Thus, loading force and unloading force are well balanced.</p> |
