| 摘要 |
<p>PURPOSE:To prevent torsion and slackness of a tape from occurring in a process of tape loading by fitting posts to bases capable of moving two-dimensionally and three-dimensionally respectively and moving these bases in synchronization with each other. CONSTITUTION:The base 5 fitted with rollers 2, 3 and 4 is guided by a three- dimensional guide groove, while the base 9 fitted with a slant pin 7 and a roller 8 is guided by a two-dimensional guide groove 10, and these are movably provided. Then, these bases 5 and 9 are fitted to two guide bases provided underneath, and are moved in synchronization with each other, so as to make the positions and directions of the moving posts to be in geometrical positions where torsion and slackness do not occur on the magnetic tape 11. Then, in a process of separating the magnetic tape 11 from a rotary cylinder 1, the rollers 2, 3 and 8 are brought under the state of being drawn into an opening part of the cassette, and hence the number of rollers to be moved into the opening part is suppressed to a min.</p> |
