| 摘要 |
<p>PURPOSE:To prevent a pinch-roller arm from being loaded under other modes such as a loading operation, etc., and to facilitate the assembling work, by bringing a press-contacting force generating part into contact with the pinch- roller arm at only the time when the press-contacting force is required. CONSTITUTION:A slide plate 28 is provided near the pinch-roller arm 24 freely movably back and forth, and also a pinch-roller press-contact arm 30 is supported with shaft on this slide plate 28 so as to generate a pressing force in one rotational direction, then a press-contacting force transmission pin 33 engaging with the pinch-roller arm 24 by which the loading operation is completed with the forth movement X of the slide plate 28, is provided on a part of this pinch-roller press-contact arm 30.</p> |
