| 主权项 |
1. A sheet conveyance apparatus, comprising:
a stacking unit configured to stack sheets thereon; a pickup rotating member configured to send out the sheets stacked on the stacking unit; a rotating member holding unit provided pivotably and configured to hold the pickup rotating member; a driving unit configured to move the rotating member holding unit so that the pickup rotating member is capable of being located at a feeding position where the pickup rotating member feeds a sheet stacked on the stacking unit, and at a feeding retracted position where the pickup rotating member does not feed the sheet stacked on the stacking unit; a feeding rotating member provided downstream of the pickup rotating member in the conveyance direction of the sheet and configured to feed the sheet sent out by the pickup rotating member; a sheet regulating unit provided pivotably in the rotating member holding unit, and capable of being located at a regulating position where the sheet regulating unit locates between the pickup rotating member and the feeding rotating member in a conveyance direction of the sheet to regulate the sheet, and a non-regulating position where the sheet regulating unit does not regulate the conveyance of the sheet from the pickup rotating member to the feeding rotating member; and a pivotable stopper portion configured to abut against the sheet regulating unit and regulate rotation of the sheet regulating unit, if the rotating member holding unit is located at the feeding retracted position, the stopper portion regulating pivoting of the sheet regulating unit from the regulating position to the non-regulating position, and the stopper portion being pivotable from a position where pivoting of the sheet regulating unit is regulated to a position where pivoting of the sheet regulating unit is not regulated when the rotating member holding unit is made to pivot from the feeding retracted position to the feeding position, wherein the stopper portion abuts, in the sheet conveying direction, against the sheet regulating unit from the side opposite to the stacking unit with respect to the sheet regulating unit, when seen from an axial direct ion of the pickup rotating member, let a point at which the stopper portion and the sheet regulating unit abut against each other when the rotating member holding unit is located at the feeding retracted position be represented by a contact point and, a moving direction in which the rotating member holding unit moves from the feeding retracted position to the feeding position is a direction substantially parallel to a tangential direction of a tangent of a surface of the sheet regulating unit at the contact point or a direction separating from the tangential direction as the rotating member holding unit moves in the moving direction. |
