| 摘要 |
<p>PURPOSE:To prevent a tape from being damaged and to make the tape stably travel by moving a reel port between the places of individual centers of a small cassette and a large cassette. CONSTITUTION:When a tape cassette is the large cassette, the reel port 3 receives pressing of a lever 7 by positioning a cylindrical part 12 above the reel port. Consequently, lower abutting pieces 17a and 17b on a lower surface of the reel port 3 abut on the upper surface of a fixed substrate, while an upper abut piece 18a abuts on the lower surface of a reel port positioning member 8. By abutting of these three spots, the reel port 3 is secured to be in parallel to the fixed substrate. Consequently, a reel table also becomes parallel to the fixed substrate. Then, when the small cassette is inserted into a cassette holder, the lever 7 is energized to be turned around a pivot 5. The reel port 3 is guided accordingly by a guide groove 14 top be turned as well. Then, the central position of the reel of the small cassette is secured, and at the same time, the parallelism of the cassette can also be secured.</p> |
