| 摘要 |
<p>A sheet feeding apparatus including a feeding roller (2) for separating and feeding a sheet, a conveying roller for conveying the sheet, a drive motor directly connected to the conveying roller (6) and capable of being rotated forwardly and reversely, a drive intermittent device for selectively transmitting a driving force from the drive motor to the feeding roller (2), and a drive switching device for rotating the feeding roller (2) in a conveying direction regardless of a rotational direction of the drive motor, and wherein, in the drive switching device, a spring clutch is used as a one-way clutch for effecting drive transmitting when the drive motor rotates the conveying roller (6) in the conveying direction as forwardly rotation and a clutch of pendulum type is used as a one-way clutch for effecting the drive transmission when the drive motor rotates the conveying roller (6) in a direction opposite to the conveying direction as reverse rotation, and the number of gears is differentiated between the forward rotation and the reverse rotation by one or odd. <IMAGE></p> |
