| 摘要 |
<p>A sheet feeding apparatus comprises sheet supporting means for supporting a plurality of sheets, a separating roller (30) rotated in a direction for feeding the sheets (36), a reversely rotatable roller (1) rotatably supported by a rockably provided reversely rotatable roller holder (5) and bearing against the separating roller (30), drive force transmitting means (8-15) for transmitting to the reversely rotatable roller (5) a drive force for rotating the reversely rotatable roller (5) in the direction opposite to the direction for feeding the sheets (36), and a torque limiter (14) provided on the drive force transmitting means (8-15) for cutting off the transmission of a driving torque of a predetermined torque value or greater. The reaction forces due to the driving torque create a moment in the reversely rotatable roller holder (5) which spaces the reversely rotatable roller (1) apart from the separating roller (30), while the friction force, the reversely rotatable roller (1) receives from the separating roller (30), creates a reaction moment which urges the reversely rotatable roller (1) against the separating roller (30). A conveyor means comprising a feed roller (32) and a pinch roller (3) serves also as driving torque source for the reversely rotatable roller (1). <IMAGE></p> |
