| 摘要 |
<p>PURPOSE:To simplify the structure and to attain a tape path of high precision by using a wedge structure provided on a lower block held by a moving base to sandwich a rail member between the moving base and the lower block. CONSTITUTION:A tape guide block 26 is provided with tape guides 9 and 10. When the block 26 rises along a guide groove of the rail member, a spring 76 is expanded to pull a lower block 49, and the block 49 is pushed down by a spring 81, and a slight margin between the rail thickness and the gap between a moving base 53 and the blocks 49 interposing the rail is eliminated, and collar parts of fixed pins 50 and 51d ride on slopes 49b and 49c of the block 49, and the block 49 acts as a wedge, and the rail member is sandwiched between the moving base 53 and the block 49. Thus the block 26 is stuck in the state where the lower face of the moving base 53 is brought into close contact with a slope 30a of a drum fixing block 30.</p> |
