| 摘要 |
A sheet feeding apparatus to be used in an automatic sheet feeder having a motor rotatable in a first direction and a second direction is disclosed. The sheet feeding apparatus includes a first transmission device driven by the motor for generating a driving force, a second transmission device driven by the first transmission device when the driving force for driving the second transmission device is larger than a threshold value, and a third transmission device moving between an initial position and a sheet feeding position and driven by the second transmission device to rotate in the first direction for moving from the initial position to the sheet feeding position where the third transmission device in contact with a sheet while the motor rotates in the first direction and the driving force for driving the second transmission device is smaller than the threshold value so that when the driving force for driving the second transmission device becomes larger than the threshold value, the third transmission device feeds the sheet.
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