| 摘要 |
<p>PURPOSE:To prevent a collision between large and small cassettes and a 3rd reel base by driving the large cassette with 1st and 2nd reel bases, mounting the small cassette to the 2nd reel base and the 3rd reel base and driving the 3rd reel base with the 1st reel base via a relaying gear. CONSTITUTION:When the large cassette 38 is lowered toward a loading position, a slide lever 24 is moved to the left to move the relaying gear 26 which has been meshed with a gear part on one part 18a of the reel base 18 and a gear part on one part 20a of the 3rd reel base 20, and hence the intermesh is released, so that the 34rd reel base 20 is lowered until it does not interfere with the large cassette 38. Then, when the small cassette 15 is lowered toward a cassette loading position, the slide lever 24 is moved to the right to raise the 3rd reel base 20, whereas the relaying gear 26 is detained in a position of meshing with the gear part on one part 18a of the reel base 18 and the gear part on one part 20a of the 3rd reel base 20, so that the 3rd reel base 20 is brought under the ascent holding state. By this method, the collision between the large and small cassettes and the 3rd reel base can be prevented.</p> |
