| 摘要 |
<p>A transmission of the present invention comprises: a fixing plate having a front fixing plate and a rear fixing plate disposed at both sides thereof; a main gear coupled to a shaft which penetrates through the rear fixing plate and which is arranged to be rotatable to transmit a driving force; a first gear connected to a shaft which penetrates through the front fixing plate and which is arranged to be movable in forward and backward directions, such that the first gear is rotatable being always engaged with the main gear, the first gearing having one surface with first clutch means; a second gear supported at the rear fixing plate and connected to a shaft arranged collinearly with the shaft connected to the first gear, the second gear having second clutch means on a surface thereof facing said one surface of the first gear such that the second clutch means functions as a clutch by being connected to or separated from the first clutch means in interlock with the forward and backward movement of the first gear; an output gear connected to the second gear through power transmission means; and transmission control means for controlling clutch function between the first clutch means of the first gear and the second clutch means of the second gear.</p> |
