| 摘要 |
<p>PURPOSE:To shorten the distance between a cassette top panel and a cassette holder by providing a notch part and a sliding guiding means at a main cover and providing an energizing member to give an energizing force from a fourth position to a third position direction to the sub-cover to reciprocate between the third position and the fourth position guided by the sliding guiding means. CONSTITUTION:Since a sub-cover 3 is stretched in the (a) direction of an arrow of a second figure by the force of two springs 11 loaded to a projection 3a at both right and left sides, the sub-cover 3 is at the third position to close a notch 2a of a main cover 3 when the force is applied from the external part to the sub-cover. In this condition, a holder 5 is at a first position or a second position. Next, when the holder 5 is at the second position and the sub-cover 3 is pushed in the (b) direction of an arrow with the finger to grasp a cassette with the hand, the sub-cover 3 starts to shift in the (b) direction of an arrow against the force of the springs 11. At this time, since projections 3a and 3b of the sub-cover 3 are shifted along a guiding groove 2b of a main cover 2, the sub-cover 3 is shifted up to the condition in which the notch 2a of the main cover 2 is opened.</p> |
