| 摘要 |
<p>PURPOSE:To drive a magnetic tape in a stable state at all times and to give no stress to the tape at all by distributing a reel drive disk and a guide pin so that both a reel and a tape guide can move upward in the same phase when a tape cassette is loaded. CONSTITUTION:A tape guide 25 is energized toward a lower case 11 by a coil spring 30; while a reel 9 is also energized toward the case 11 by a holding spring 10 respectively. A magnetic tape 8 is stretched straight between the guide 25 and the reel 9. A pawl part 2 of a reel drive disk 1 bits a projection 13 of the reel 9, and a tip part 4 of a circular projected part 3 of the disk 1 has a contact with a tip part 15 of a projection part 14 of the reel 9. In this case, a tip part 23 of a guide pin 22 also has a contact with a bottom surface part 31 of the guide 25. Then both the reel 9 and the guide 25 move upward in the same phase. The bottom surface of the case 11 has a contact with a support shaft 24, and a tape cassette main body 5 is positioned.</p> |
