| 摘要 |
PROBLEM TO BE SOLVED: To control the rotating direction of a first conveying roller without using a solenoid by controlling the rotation in the loosening direction of a first spring clutch, and rotating the first conveying roller in the reverse direction. SOLUTION: An auxiliary conveying roller 33, a separation roller 16a, and a first conveying roller (conveying roller) are rotated through gears. When the driving force is transmitted to a transmission shaft 52 from the gears, a second spring clutch 29 is tightened, and the driving in the conveying direction (direction of arrow (f)) is transmitted to the separation roller 16a (a). The driving is transmitted from a gear 28 to a clutch shaft 34 through a first idler gear 37, but the driving is not transmitted through the first spring clutch 36 as the first spring clutch 36 is directed in the loosening direction. When the driving direction is reversed, the second spring clutch 29 is loosened, the transmission to the separation roller 16a is cut off, and the first spring clutch 36 is tightened, whereby the driving in the reverse direction (direction of arrow (g)) is transmitted to the auxiliary conveying roller 33.
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