| 摘要 |
PROBLEM TO BE SOLVED: To provide a supporting pin designed by a simple and low cost method. SOLUTION: A pin 14 for connecting a gear 5 to a supporting member 6 is provided with longitudinal first 19, second 20 end parts capable of being connected to the supporting member 6, a first intermediate part 21 extending from the first end part 19, and a second intermediate part 22 extending from the second end part 20, differed from the first intermediate part 21 in size, and having the bending strength differed from that of the first intermediate part 21. |
