| 摘要 |
A normal and reverse rotating mechanism of this invention includes a normal and reverse rotating member capable of normal and reverse rotations, a first rotation transmitting member for transmitting normal rotation to the normal and reverse rotating member, a second rotation transmitting member for transmitting reverse rotation to the normal and reverse rotating member, a drive source rotatable in one direction for imparting a rotational drive to the normal and reverse rotating member, first spring clutch means for operatively associating the first rotation transmitting member and the drive source with each other, second spring clutch means for operatively associating the second rotation transmitting member and the drive source with each other, and control lever means for controlling the first and second spring clutch means so that when one of the two spring clutch means is operatively associated with the drive source, the other spring clutch means is not operatively associated with the drive source. The invention does not require normal and reverse rotations of the drive source itself and does not require a bulky and complicated mechanism such as an electromagnetic clutch.
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