| 摘要 |
A transmission mechanism has an input gear, a first intermediate gear configured to engage with the input gear. A rotation shaft of the first intermediate gear is movable between a first position and a second position along an elongated hole formed on a supporting member. A first output gear is configured to engage with the first intermediate gear when the rotation shaft is located at the first position, and a second output gear configured to engage with the first intermediate gear when the rotation shaft is located at the second position. The rotation shaft can be located at a third position which is an intermediate position between the first position and the second position, the first intermediate gear engaging with both the first output gear and the second output gear when the rotation shaft is located at the third position. |
