| 摘要 |
<p>PURPOSE: To solve troubles such as the looseness of a screw thread in performance by blocking the opposite side of a hole opposed to a front side connected to the tip of a roller shaft by forming a shaft hole of a connector as a through hole. CONSTITUTION: A connector 7 is fitted to a key lever and the tip thread part 11 of a roller shaft 10 and an auxiliary bolt 12 are fitted to both the ends of a screw hole formed in the connector 7 extended to a thread part L consisting of a connection shaft hole 8 (including tip screw hole 9) to form a double fixing system. Consequently the looseness of the screw can be prevented, a gap between a roller 5 and the connector 7 can easily be formed, and when a slipping part between the roller 5 and a roller shaft 10 is abraised, resetting can easily be executed by simple operation.</p> |
