| 摘要 |
An intermittent gear mechanism includes two intermittent gears mounted at opposite sides of a driving gear driven by a motor. One of the intermittent gears is normally held by a holding member at a position disengaged from the driving gear while the other intermittent gear engages the driving gear. When the latter intermittent gear is driven, the former intermittent gear is brought into engagement with the driving gear by a simple initial driving assembly. |
