| 摘要 |
<p>PURPOSE:To reduce manufacturing cost by reducing the number of parts and assembly man-hour. CONSTITUTION:The upper roller 51a of a pair of rollers, a supporting shaft 51c supporting the upper roller 51a, and an input gear 51d driven by a driving system are integrally molded with resin. A rubber tube 51e for suppressing the occurrence of a slip between a form and the upper roller 51a is mounted up on its outer periphery.</p> |
